CN204151843U - Turnover ladder and the relieving mechanism for turnover ladder - Google Patents
Turnover ladder and the relieving mechanism for turnover ladder Download PDFInfo
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- CN204151843U CN204151843U CN201290001111.9U CN201290001111U CN204151843U CN 204151843 U CN204151843 U CN 204151843U CN 201290001111 U CN201290001111 U CN 201290001111U CN 204151843 U CN204151843 U CN 204151843U
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- 230000007306 turnover Effects 0.000 title claims abstract description 131
- 230000007246 mechanism Effects 0.000 title claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 description 10
- 230000001012 protector Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002783 friction material Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/02—Retractable steps or ladders, e.g. movable under shock
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Abstract
The utility model relates to turnover ladder and the relieving mechanism for this turnover ladder.Described turnover ladder is constructed to be permeable to from the extended position of the turnover for being provided to structure to stowed position.This turnover ladder comprises elongated first component, and this elongated first component has the first step (50) laterally extended from it.Elongated second component is associated with first component and is configured for moving relative to first component translation, and this elongated second component has the second step (50) laterally extended from it.Connecting rod extends between second component and structure, make the rotation of first component that second component is moved relative to first component translation, make described at least one second step (50) mobile towards described at least one first step (50) whereby.
Description
Technical field
The utility model relates generally to turnover (access) system, relates more specifically to the system of the operator workstation for passing in and out machine.
Background technology
Many machines have the Operator's Control Unit of a distance, the side of resting on the ground.Such as, heavy-duty machines---such as Large Construction/construction machine and large-scale mining machinery---generally includes driver's cabin, and this driver's cabin holds the Operator's Control Unit that distance ground number foot is positioned at machine top.In order to arrive control device, operator needs the ability of the distance risen from ground to driver's cabin.Many machines comprise for assisting operator close to the turnover system of the control device of machine.Such as, many machines comprise ladder, slope, stairway step etc.
In many cases, machine must pass through rugged country during operation.Such as, wheeled self-propelled scraper, truck, excavator, loader and other machine are often through rugged, the ground that do not arrange or do not pave in building site or mining area.As a result, need to have between ground and machine the larger distance that is generally several feet in order to allow machine not hinder or damage by this area.In addition, heavy-duty machines must by vegetation, works/structure and other machine when passing through building site, therefore, wishes that any turnover system is provided to the sufficient clearance on ground and not protruding when machine uses, in order to avoid and the contacting unintentionally of exterior object.
Utility model content
In an arrangement, the utility model describes a kind of ladder for passing in and out structure, this ladder is constructed to be permeable to from the first extended position to the second stowed position, and described first extended position is for being provided to the turnover of structure, and described second stowed position is used for storing ladder when not using.This ladder is included in the elongated upper member that upper end is pivotally connected to the connector place on structure and at least one upper step laterally extended from upper member.Elongated lower member to be attached in upper member and to be configured for moving relative to upper member translation.At least one lower step laterally extends from lower member.This ladder comprises connecting rod, this connecting rod extends between lower member and structure, make the upwards rotation from extended position to stowed position of upper member cause lower member to move relative to upper member translation, make at least one upper step described move towards at least one lower step described whereby.
Another program of the present utility model comprises the relieving mechanism for turnover ladder.This turnover ladder comprises the lever assembly being connected to actuator, and described actuator rotates around axis for making turnover ladder between first extended position and the second stowed position of the turnover for being provided to structure.This relieving mechanism comprises the first release lever being connected to lever assembly, and this first release lever is configured for by making lever assembly move along described axis and optionally makes lever assembly be disengaged with turnover ladder.Described relieving mechanism also can comprise the second release lever, and described second release lever is away from described first release lever location, and described second release lever is configured for optionally making described lever assembly be disengaged with described turnover ladder.
Another scheme of the present utility model comprises turnover ladder, and this turnover ladder is constructed to be permeable to from the first extended position of the turnover for being provided to structure to the second stowed position.This ladder comprises: have first end and the second end and the elongated first component be connected on structure; From at least one first step that this first component extends; And elongated second component, this second component is associated with first component and is configured for moving relative to first component translation.Second component comprises at least one second step laterally extended from second component, and wherein first component is hollow at the second end place, and second component is configured to extend in the second end.This ladder also comprises can pivotable and the connecting rod that engages slidably with the elongated passageway be formed in elongated second component.This connecting rod extends second component and structure through the slit extended in the surface being formed in first component and through described surface, make the rotation from extended position to stowed position of first component that second component is moved relative to first component translation, make at least one second step described move towards at least one first step described whereby.This ladder also comprises the actuator for making first component rotate between extended position and stowed position around axis.This actuator comprises the lever with first component mating reaction, and wherein this lever is by towards first component bias voltage.This ladder also comprises the relieving mechanism for disconnecting with making first component and automated mechanical.This relieving mechanism comprises the first release lever away from turnover ladder location, and this first release lever is configured for doing in order to optionally to make lever be disengaged with first component by making lever move along described axis with lever mated.Described relieving mechanism also can comprise the second release lever, and described second release lever is away from described first release lever location, and described second release lever is configured for optionally making described lever be disengaged with described turnover ladder; With the second release cable with first end and the second end, the described first end of described second release cable is connected to described second release lever, the described the second end of described second release cable is connected to described swivel pin, and wherein said first release cable and described second release cable are configured to keep static while the described first component of permission rotates.
Another program of the present utility model comprises a kind of vehicle, and this vehicle comprises the turnover system being constructed to be permeable to change between first configuration and the second stowed configuration of the turnover for being provided to structure.This turnover system comprises first ladder portion with elongated first component, and at least one first step is from this elongated first component horizontal-extending, and this first ladder portion has first end and the second end, and first end is attached on structure.This turnover system also comprises second ladder portion with elongated second component, and at least one second step is from described elongated second component horizontal-extending, and this second ladder portion and the first ladder portion associate slidably in order to extend through the second end.This turnover system also comprises the actuator be connected on structure and the first ladder portion.This turnover system also comprises can pivotable and the connecting rod that engages slidably with the elongated passageway be formed in first component, this connecting rod extends to the second ladder portion through the slit extended through the surface of first component from structure, is moved into slides relative to the first ladder portion in order to make the second ladder portion.This turnover system also comprises the relieving mechanism being configured to actuator and the first ladder portion are mechanically disconnected.This relieving mechanism comprises: away from the first release lever of turnover ladder location, this first release lever is configured to do in order to optionally to make lever be disengaged with first component by making lever move along described axis with lever mated; To be fixed on lever assembly and with the swivel pin that arranges of ladder coaxial ground, this swivel pin is by along first direction bias voltage; Be fixed on the fisrt feature portion on ladder assembly; With the second feature portion be fixed on lever assembly.Fisrt feature portion becomes mating reaction ladder assembly and lever assembly to be coupled together whereby with second feature cage structure, the bias voltage of swivel pin makes fisrt feature portion and second feature portion engage, and the first release lever is configured for the bias voltage overcoming swivel pin, fisrt feature portion and second feature portion is optionally made to be disengaged whereby.Described fisrt feature portion can comprise the collar arranged around described swivel pin, and described second feature portion can comprise the recess be arranged in described lever assembly.The described collar can comprise: the first key, and described first key is configured for coordinating with the first keyway be formed in described recess; With the second key, described second key is configured for coordinating with the second keyway be formed in described recess, wherein said key and described keyway are configured so that described turnover ladder must be oriented in the position for making described lever assembly be re-engaged, described position is identical with the turnover ladder position for making described lever assembly be disengaged, and the described bias voltage of described swivel pin allows automatically to be re-engaged when described turnover ladder is in appropriate location.
Accompanying drawing explanation
Fig. 1 is the side perspective of the machine according to an embodiment;
Fig. 2 is the side perspective of the turnover system of the machine of Fig. 1, and the system that wherein passes in and out is in extended position;
Fig. 3 is the side perspective of the turnover system of Fig. 2;
Fig. 4 is the side perspective of the turnover system of the Fig. 2 illustrated in greater detail;
Fig. 5 is the rear perspective of the turnover system of Fig. 2;
Fig. 6 is the lateral view of the turnover system of Fig. 2; The system that wherein passes in and out is in extended position;
Fig. 7 is the lateral view of the turnover system of Fig. 6, and wherein ladder portion rotates towards stowed position slightly;
Fig. 8 is the lateral view of the turnover system of Fig. 7, and shown in it, ladder rotates further towards stowed position;
Fig. 9 illustrates the lateral view of the turnover system of Fig. 8, and wherein ladder is in stowed position;
Figure 10 is the detailed perspective view comprising the ladder portion of a part for relieving mechanism according to the utility model embodiment;
Figure 11 is configured to the detailed perspective view comprising the actuator lever part of a part for relieving mechanism with the ladder portion mating reaction shown in Figure 10;
Figure 12 is the phantom drawing of the embodiment of the relieving mechanism shown in Figure 10 and 11;
Figure 13 is the phantom drawing of the embodiment of relieving mechanism of the present utility model;
Figure 14 is the detailed view of the embodiment of the relieving mechanism shown in Figure 13;
Figure 15 shows the elevation being in the embodiment of the relieving mechanism of bonding station of the present utility model; And
Figure 16 is the elevation that the relieving mechanism shown in the Figure 15 being in disengaged position is shown.
Detailed description of the invention
The turnover system of the power-operated that the operator workstation that the utility model is related to machine provides.
In the following description, multiple embodiment of the present utility model will be described.For explanatory object, elaboration particular configuration and details are to provide fully understanding embodiment.But, also it is evident that for a person skilled in the art, the utility model can be put into practice when there is no detail.In addition, well-known feature can be omitted or simplify to concentrate on described embodiment.
Referring now to accompanying drawing, wherein in whole multiple accompanying drawing, same Reference numeral represents same or analogous parts, and Fig. 1 illustrates the machine 20 according to embodiment.As shown in FIG., machine 20 can be wheeled self-propelled scraper, and this wheeled self-propelled scraper scrapes off dust, clay or other material to have such as the machine of the expectation planeness of road from ground to make ground.Machine 20 can be the machine of another type, such as articulated truck or other truck, backhoe loader, cold milling and planing machine, compacting machine, feller buncher, forestry machine, conveyer, harvester, excavator, loader, jaw type loader, material processor, load land leveller, many landform loader, highway tractor, highway truck, paver, pipelayer, road material remixer, earth scraper, glide steering loader, skidder, telescopic arm forklift, carloader, Track Type tractor, wheel dozer, wheel excavator, wheel loader or underground machine, or the machine of other type any.Machine 20 can be mobile, but it also can be static/fixing, does not have the ability moving to another position from a position.
In the embodiment shown in the figures, machine 20 comprise cab portion 22 (also referred to as tractor part) and compartment (bed) part 24 (also referred to as hopper, scraper plate or bucket part, hopper or bucket refer to the container for scraping the material obtained in car parts 24), described cab portion and described car parts both take turns 26 supportings by multiple.Cab portion 22 in an embodiment is configured for operating machines 20.In one embodiment, cab portion 22 comprises the driver's cabin 28 of the Operator's Control Unit of installing machine 20.Driver's cabin 28 can be arranged in the front of a protector of a pair relative protector 30, and each protector 30 extends above the wheel 26 of relative both sides being positioned at cab portion 22.Bumper 32 extends around the hood 34 of the motor for installing machine 20 from the front side wall of each protector 30.In one embodiment, bumper 32 is outwardly in order to form the upper surface shared with the upper surface of boss 35 of bumper 32, and described boss laterally extends from the side in the front at protector 30 of hood 34.As described in greater detail below, boss 35 is connected to for utilizing ladder to provide the turnover system 36 of the turnover to driver's cabin 28, but turnover system 36 also can be positioned at any suitable part of machine 20, such as in the front of protector, near driver's cabin 28 place.The turnover system of all as directed turnover systems 36 can be positioned at multiple positions of machine 20.Turnover system 36 can be close to from boss 36 or other suitable position handrail/railing 38 outwardly to locate, to provide leverage for the handrail 38 of leverage to the operator of use turnover system 36 by allowing operator to catch.
As shown in Figure 2, boss 35 comprises two separated from each other recesses 40.As shown in FIG., turnover system 36 comprises upper left quarter parts 42 and upper right quarter parts 44, and each in described upper left quarter parts and upper right quarter parts recess place in recess 40 is pivotally connected on machine 20.In an embodiment, upper left quarter parts 42 are elongated rods of metal or other suitable material, and it extends to form " L " shape, the comparatively long leg extending to " L " compared with short leg with the angle of such as about 90 degree towards machine 20 of " L ".Upper right quarter parts 44 are similar to the formation of upper left quarter parts 42, and with upper left quarter parts 42 in a distance and be parallel to upper left quarter parts 42 ground and extend.As shown in Figure 2, turnover system 36 is in extended configuration, wherein passes in and out system 36 and is configured to ladder, and wherein upper left quarter parts 42 and upper right quarter parts 44 are both downwards and deviate from boss 35 and extend.From this position, turnover system 36 may be used for passing in and out driver's cabin 28, as hereafter described more fully.
Fig. 3 illustrates the turnover system 36 being in stowed configuration, wherein upper left quarter parts 42 and upper right quarter parts 44 upwards rotate around being arranged in the left articulated elements 46 of a recess of recess 40 or other connector and be arranged in the right articulated elements 48 of another recess 40 or other connector respectively, and upper left quarter parts 42 and upper right quarter parts 44 are upwards extended from left articulated elements 46 and right articulated elements 48 respectively.
Fig. 4 illustrates in greater detail turnover system 36.In an embodiment, upper left quarter parts 42 and upper right quarter parts 44 extend parallel to each other, and wherein multiple step 50 is parallel and flatly extend between described upper left quarter parts with described upper right quarter parts, together form upper ladder part thus.Although extend between upper left quarter parts 42 and upper right quarter parts 44 shown in accompanying drawing two steps 50, only a step 50 or the step 50 more than two can extend between upper left quarter parts 42 and upper right quarter parts 44.Such as, if particular machine needs the turnover system 36 more grown, then longer upper left quarter parts 42 and upper right quarter parts 44 can be provided with the multiple steps 50 extended between which.Similarly, if particular machine needs shorter turnover system 36, then shorter upper left quarter parts 42 and upper right quarter parts 44 can be provided with the only step 50 extended between which.Step 50 can be can the slim-lined construction of material---such as metal---of weight of operator of supporting machine 20.
In an embodiment, turnover system 36 comprises the lower left quarter parts 52 extended from the bottom of upper left quarter parts 42.Similarly, turnover system 36 comprises the right lower quadrant parts 54 extended from the bottom of upper right quarter parts 44.In an embodiment, lower left quarter parts 52 are configured to be assemblied in upper left quarter parts lower left quarter parts 52 can be slided and the elongated bar of translation movement along this lower left quarter part length size relative to upper left quarter parts 42.Like this, lower left quarter parts 52 can stretch from the end of upper left quarter parts 42, and this end is the bottom of the upper left quarter parts 42 when turnover system is in turnover position.Can comprise on the external surface of lower left quarter parts 52, for reducing nylon sheet (not shown) or other device of the friction between upper left quarter parts 42 and lower left quarter parts 52.In addition, for upper left quarter parts 42, upper right quarter parts 44, lower left quarter parts 52 and right lower quadrant parts 54 being configured to provide between upper left quarter parts 42 and lower left quarter parts 52 and between upper right quarter parts 44 and right lower quadrant parts 54 other configuration of translational motion to be possible.Such as, lower left quarter parts 52 do not need to extend in the end of upper left quarter parts 42, but such as by being welded on the side of upper left quarter parts 42, having the passage of the interior shape corresponding with the outer shape of upper left quarter parts 42 and being connected on upper left quarter parts 42 slidably, lower left quarter parts 52 can be slided near upper left quarter parts 42.Upper right quarter parts 44 and right lower quadrant parts 54 can be formed similarly.In one embodiment, right lower quadrant parts 54 are similar with the formation of lower left quarter parts 52.
---such as and the similar step of the formation of step 50---can extend, jointly form lower ladder part thus between the bottom of lower left quarter parts 52 and the bottom of right lower quadrant parts 54 to extend step 56.Although accompanying drawing only illustrates the extension step 56 extended between lower left quarter parts 52 and right lower quadrant parts 54, but more than one step can extend abreast between lower left quarter parts 52 and right lower quadrant parts 54, such as, in order to form longer turnover system 36.Because pass in and out system 36 to be used as ladder when turnover system 36 is in and stretches turnover position, upper left quarter parts 42, upper right quarter parts 44, lower left quarter parts 52, right lower quadrant parts 54, step 50 and extension step 56 are totally called ladder assembly 57.
Because lower left quarter parts 52 and right lower quadrant parts 54 are connected to upper left quarter parts 42 and upper right quarter parts 44 respectively, thus extend step 56 can slide relative to upper left quarter parts 42 and upper right quarter parts 44 respectively along with lower left quarter parts 52 and right lower quadrant parts 54 and towards with deviate from step 50 and move.Like this, step 50 and the length extended between step of topmost can change, and become shorter when turnover system 36 does not use especially.
Fig. 5 illustrates turnover system 36 from the vantage point at rear, and wherein ladder assembly 57 is in turnover position.In an embodiment, left articulated elements 46 and right articulated elements 48 are attached on the upper surface of plate 58 of the horizontal-extending of machine 20, and the interior section that described plate 58 is attached to bumper 32 makes each articulated elements be exposed by corresponding recess 40.Left articulated elements 46 and right articulated elements 48 can alternatively directly be attached on bumper 32 or in the other parts of machine as required or by the design guarantee of machine 20.
As shown in the figure, turnover system 36 comprises left connecting rod 60, this left connecting rod extends between the position and the upper end of lower left quarter parts 52 of the plate 58 such as in the below at left articulated elements 46 of machine 20, provides the link between the upper end of lower left quarter parts 52 and plate 58 thus.In an embodiment, left connecting rod 60 to be pivotally connected to an end on plate 58 and to be pivotally connected on lower left quarter parts 52 in relative end.Usually, left connecting rod 60 such as can directly be connected to machine 20 by the connector (also referred to as connecting rod connector) be connected in a part for the framework being attached to machine 20, or left connecting rod 60 such as can be connected to machine 20 by being connected on the connector on the plate 58 that is positioned at as shown in the figure or by another desired part being connected to turnover system 36 indirectly.In an embodiment, left connecting rod 60 is elongate band/sheet shaped pieces of metal or other rigid material, but described left connecting rod also can be the strap-like member of flexible material or other material.Extend in the embodiment in the end of upper left quarter parts 42 at lower left quarter parts 52, upper left quarter parts 42 comprise left slot 64, the slit that the part that this left slot is through the surface of the length (direction) of upper left quarter parts 42 extends, arrives lower left quarter parts 52 in order to allow left connecting rod 60 through upper left quarter parts 42.Right connecting rod 62 is similar with the formation of left connecting rod 60, from right articulated elements 48, the upper end being extended to right lower quadrant parts 54 by the right slot 66 extended along a part for the length (direction) at the back side of upper right quarter parts 44.
In an embodiment, one in upper member, such as upper right quarter parts 44 comprise lever assembly 68, and the upper end of this lever assembly in the front of right articulated elements 48 at upper right quarter parts 44 mechanically engages with upper right quarter parts 44.Lever assembly 68 is any devices making turnover system 36 rotate around left articulated elements 46 and right articulated elements 48 when exerting a force to lever assembly 68, is such as attached to the lever of upper left quarter parts 44 rigidly.As shown in the figure, in an embodiment, lever assembly 68 comprises two parallel lever plates 70, and each lever plate 70 is cut to form " L " shape, and wherein, when turnover system 36 is in turnover position, the leg being somebody's turn to do " L " shape upwards extends, as shown in Figure 5.Lever plate 70 extends parallel to each other in the relative both sides of the upper end of upper right quarter parts 44, and such as utilizes and to extend below the side of upper right quarter parts 44 or the protuberance (not shown) that extends in described side and mechanically engaging with upper right quarter parts 44.In an alternative embodiment, lever assembly 68 and upper right quarter parts 44 or upper left quarter parts 42 form the integrated member of turnover system 36.It can be leverage bar 72 extension between lever plate 70 above the upper end of upper right quarter parts 44 of elongated metallic bars.
In an embodiment, actuator 74 engages with leverage bar 72 and extends towards the inside of machine 20 from leverage bar 72, and wherein said actuator is attached in the appropriate configuration of machine 20 rigidly, and the inner frame component of such as machine 20, as clearlying show that in Fig. 4.In an embodiment, actuator 74 is electric linear actuatorss, but it also can be the actuator of linear hydraulic cylinder component or another type.Generally, actuator 74 is can to the suitable component force of turnover system 36 in order to make upper left quarter parts 42 rotate around left articulated elements 46 and to make any device that upper right quarter parts 44 rotate around right articulated elements 48.According to specific embodiment, actuator 74 need not apply linear force, but also can utilize rotatory force or other power.In addition, actuator 74 can also comprise for guaranteeing that actuator 74 does not apply torque limiter more than required power or other mechanism.
How Fig. 6 to Fig. 9 makes turnover system 36 move to stowed configuration (or stowed position) as shown in Figure 9 from turnover configuration (also referred to as turnover position or extended position) as shown in Figure 6 if demonstrating according to an embodiment.
Concrete with reference to Fig. 6, in turnover position, ladder assembly 57 be oriented such that lower left quarter parts 52 and right lower quadrant parts 54 respectively from upper left quarter parts 42 and upper right quarter parts 44 to downward-extension.In an embodiment, when being in turnover position, ladder assembly 57 is downwards and slightly deviate from machine 20 and extend.Extending step 56 and foot step 50 separates enough far away to allow operator to be placed on by his or her pin to extend step 56 to push up, but enough close to make operator can step foot step 50 from extending step 56.
As shown in by comparison diagram 6 and Fig. 7, when actuator 74 is such as in the after-contraction by operator's actuating electric switch (not shown), lever assembly 68 is pulled to machine 20 by actuator 74, makes ladder assembly 57 upwards rotate around left articulated elements 46 and right articulated elements 48 thus.Along with ladder assembly 57 upwards rotates, the bottom of upper right quarter parts 44 and right connecting rod 62 with machine 20 tie point between distance increase.Therefore, right lower quadrant parts 54 are drawn in upper right quarter parts 44 by right connecting rod 62 further, make extension step 56 close to step 50 thus.As shown in by further comparison diagram 8, along with actuator 74 shrinks further, lower left quarter parts 52 and right lower quadrant parts 54 extend in upper left quarter parts 42 and upper right quarter parts 44 respectively further, thus make extension step 56 closer to the step 50 closest to extension step 56.
As shown in Figure 9, when actuator 74 shrinks completely, ladder assembly 57 rotates about 180 degree to stowed position from turnover position, upwards extend from boss 35 at this stowed position ladder assembly 57, wherein ladder assembly 57 is oriented such that lower left quarter parts 52 and right lower quadrant parts 54 upwards extend from upper left quarter parts 42 and upper right quarter parts 44 respectively.In addition, stowed position is moved to completely by making turnover system 36, lower left quarter parts 52 and right lower quadrant parts 54 are almost pulled in upper left quarter parts 42 and right lower quadrant parts 54 by left connecting rod 60 and right connecting rod 62 respectively completely, make to extend the contiguous hithermost step 50 of step 56, this hithermost step is the step 50 of the topmost shown in Fig. 9.Therefore, in stowed position, turnover system 36 is than compacter when being in turnover configuration.In addition, the turnover system 36 be in stowed configuration does not have any component laterally extending from machine 20 or laterally extend in the below of machine 20, thus reduces any possibility that turnover system 36 can contact with ground or other object or person when machine 20 moves.If machine comprises moving parts---such as hydraulic operation arm or rotation driver's cabin, then make turnover system 36 move to stowed position to move freely in (space) for any moving parts provides, and pass in and out system 36 be in turnover position time may disturb movement.
Turnover system 36 is similar to the operation implementation of stowed configuration from passing in and out configuration to turnover system 36 to the operation of turnover configuration from stowed configuration, and wherein this last procedural order carries out on the contrary.Particularly, when starting switch or other device, actuator 74 promotes leverage bar 72, and ladder assembly 57 is rotated around left articulated elements 46 and right articulated elements 48.In an embodiment, while ladder assembly 57 rotates, because the bottom of upper left quarter parts 42 and upper right quarter parts 44 and left connecting rod 60 and right connecting rod 62 with plate 58 tie point between distance reduce, so lower left quarter parts 52 and right lower quadrant parts 54 are released by left connecting rod 60 and right connecting rod 62 respectively respectively from the bottom of upper left quarter parts 42 and upper right quarter parts 44.In alternative embodiments, left connecting rod 60 and right connecting rod 62 are flexible, and therefore gravity and/or another external force---is such as stepped on the power extending the operator on step 56 and apply---by lower left quarter parts 52 and right lower quadrant parts 54 and is released from the bottom of upper left quarter parts 42 and upper right quarter parts 44 respectively, makes step 50 be separated with extension step 56 thus.In another embodiment, turnover system 36 only comprises the one in left connecting rod 60 and right connecting rod 62, and the lower left quarter parts 52 of correspondence or right lower quadrant parts 54 are released by the one in this left connecting rod 60 and right connecting rod 62 from the upper left quarter parts 42 of correspondence or the end of upper right quarter parts 44.
Referring back to Fig. 4, turnover system 36 can comprise the feature except feature listed above.Such as, according to an embodiment, turnover system 36 can comprise emergency release device/relieving mechanism, and this emergency release device comprises urgent release cable 76 and handle 78.Ladder assembly 57 discharges from actuator 74 by urgent release cable 76, if make actuator 74 lose efficacy or power shortage source, then manually ladder assembly can be placed in turnover position.Handle 78 is the mechanism that the operator of machine 20 provides for pulling urgent release cable 76, described handle can be arranged on the end deviating from ladder assembly 57 of urgent release cable 76, with the position easily that can be arranged on machine 20, such as, in the part of the remainder relative to machine 20 being arranged on machine 20 infrequently movement, such as, being positioned on the external body plate at the rear of the door of machine 20 of machine 20 is arranged on.In an embodiment, handle 78 pulls urgent release cable 76, and this promptly discharges cable such as by mechanically disconnecting to make lever assembly 68 and upper right quarter parts 44 or actuator 74 mechanical connection removed between ladder assembly 57 and actuator 74 along one or more components of the direction pull lever assembly 68 deviating from upper right quarter parts 44.The mechanism of any permission ladder assembly 57 manually movement can with promptly discharge cable 76 or be combined with another mechanism being manually actuated for controlling turnover system 36 or being operated by actuator 74.
With reference to Figure 10, the embodiment of emergency release device 90 can comprise the collar 92, and this collar 92 is such as attached on ladder assembly 57 at upper right quarter parts 44 place, makes the orientation of the collar 92 be fixing relative to upper member.The collar 92 can comprise one or more lug boss 94 or key.Such as, as shown in Figure 10, illustrate that the collar 92 has two lug bosses 94 being oriented relative to one another to 180 degree of configurations.The collar 92 also can comprise opening 96, and this opening 96 is configured for and the register in ladder assembly 57 and installing plate 98, and is configured for receiving swivel pin 100 (referring to Figure 11).
Referring now to Figure 11, lever assembly 68 can comprise and is arranged on recess in lever arm 104 or otch 102.Recess or otch 102 can be configured to comprise the one or more keyways 106 corresponding with the one or more lug bosses 94 on the collar 92.
As shown in figure 12, lever arm 104 can be configured to locate towards the inner side of upper right quarter parts 44.Swivel pin 100 can be disposed through lever arm 104, upper right quarter parts 44 and installing plate 98.Spring 108 can arrange around the outboard end of swivel pin 100 and pass through nut 110 and pad 112 is fixed.Spring 108 can be configured for applying the power towards the outside orientation of upper right quarter parts 44, thus impels lever arm 104 and otch 102 to engage with the collar 92.
With reference to Figure 13, emergency release device 90 can comprise the first release lever 78A and the second release lever 78B, described first release lever is positioned near driver's cabin 28, and described second release lever is located so that the operator stood on the ground can use the second release lever 78B.First promptly discharges cable 76A and second urgent release cable 76B is connected on the first release lever 78A and the second release lever 78B an end respectively.At the second end place, first promptly discharges cable 76A and second urgent release cable 76B is connected to swivel pin 100.
With reference to Figure 14, cable installation bracket 114 can be attached on plate 58.Cable installation bracket can comprise the vertical flange 116 of the axes orientation being substantially perpendicular to swivel pin 100.Sleeve pipe 118A, 118B can be disposed through the opening in flange 116, and are configured to allow promptly to discharge cable 76A and 76B respectively and pass through.
The second end of urgent release cable 76A, 76B is connected on swivel pin 100 by U-shaped folder 120.U-shaped folder 120 axis that can be configured for around swivel pin 100 rotate, and this allows ladder assembly 57 to rotate around swivel pin 100, keep urgent release cable 76A, 76B static and non-warping simultaneously.The second end of urgent release cable 76A, 76B can be provided with clamping piece 122A, the 122B for being attached on U-shaped folder 120.In the exemplary embodiment shown in Figure 14, each clamping piece 122A, 122B can press from both sides the leg setting of 120 around U-shaped.Clamping piece 122A, 122B and U-shaped folder can comprise opening, make the rod pin 124 when aliging can place through described opening and utilize cottor pin 126 to fix.
Illustrate that the emergency release device 90, Figure 16 being in bonding station illustrates the emergency release device 90 being in disengaging configuration referring now to Figure 15 and Figure 16, Figure 15.Actuation handle 78A and handle 78B causes the pulling force acting on cable 76A or cable 76B respectively.This pulling force is delivered to swivel pin 100 by cable 76A or 76B, thus the power overcoming spring 108 outwards pulls swivel pin 100.Lever assembly 68 is with swivel pin 100 outwards movement, until the collar 92 departs from recess, makes ladder assembly 57 depart from actuator 74 thus.
Because the collar 92 comprises two lug bosses 94 each other in 180 degree of orientations, and rotate in 180 degree because ladder assembly 57 is configured to be less than, so lever assembly 68 can not be re-engaged before ladder assembly 57 turns back to disengaged position.When ladder assembly turns back to disengaged position, the collar 92 and lug boss 94 align to allow making every effort to promote of spring 108 that swivel pin 100 is engaged with lever assembly 68.Which ensure that ladder assembly is in tram when being re-engaged and allows single user/single user operation.
Emergency release device 90 also can comprise sleeve 128, and this sleeve to be attached on installing plate 98 and to be arranged in the interior hollow region of ladder assembly 57.Sleeve 128 can be such as fixing on a mounting board by welding, interference fit or other acceptable method, device as known in the art.Sleeve 128 can comprise the low-friction material 130 be arranged in inner surface.Low-friction material 130 can be configured to allow swivel pin 100 to be free to slide in sleeve 128 with minimum resistance.Low-friction material 130 can be configured to nylon sleeve bearing.In addition, emergency release device 90 can comprise the sleeve pipe 132,134 be arranged on each end of sleeve 128, and described cannula configuration becomes for reducing to wear and tear and providing the friction factor of reduction.In this exemplary embodiment, illustrate that sleeve pipe 132,134 has (top-hat) sleeve pipe be configured to the top hat shape in the hole of swivel pin 100 mating reaction.Sleeve pipe 132,134 can be made up of the nylon material with low-friction coefficient similar to low-friction material 130.
Industrial usability
When using machine, operator must climb up the driver's cabin held for the control device of operating machines usually.Such as, the operator of machine 20 must climb up the driver's cabin 28 of machine 20 in order to driven machine around operation field, at this operation field machine 20 for being arranged in the material of car parts 24 from the three unities haul to another place.
In order to climb up driver's cabin 28, operator climbs up the ladder part/ladder assembly 57, just as it is traditional ladder.Particularly, first operator sets foot on and extends step 56 and then climb up ensuing step 50 until arrive boss 35 without any confusion.Operator can catch a part for ladder assembly 57 and handrail 38 as required, he or she to be pulled on by oneself.In the embodiment shown in the figures, as shown in Figure 1, operator can climb additional protection part step 80---and its front at protector 30 upwards extends or otherwise suitably locates, and the front portion climbing up protector 30 is with other position on the cab portion 22 of the entrance or machine 20 that pass in and out driver's cabin 28.Other ladder, turnover system or mechanism can be utilized in combination to climb up machine with turnover system 36.
In one embodiment, when climbing up machine 20, operator can start the starting switch (not shown) be electrically connected with actuator 74, makes actuator 74 make ladder assembly 57 upwards turn to stowed position.Safety switch (not shown) and/or alarm buzzer can be set, in order to prevent machine 20 from realizing full-scale operation before turnover system 36 is in stowed configuration, or remind operator that turnover system 38 while machine 20 uses is in stretching, extension turnover configuration.When turnover system 36 is in stowed configuration, operator operates machines 20, until to have worked or until operator need get off from driver's cabin 28 due to other reason.In order to get off from driver's cabin 28, operator activates starting switch, makes actuator 74 that ladder assembly 57 is rotated, until ladder assembly 57 is in turnover configuration.Operator is then by stepping on without any confusion from ladder assembly 57 on ensuing step 50, until arrive along stretching step 56, he or she steps a small step from this extension step 56 or jump on ground.
Should be appreciated that, description above provides disclosed system and the example of technology.But it is expected to, other embodiment of the present utility model can be different from example above in details.All explanations to the utility model or its example be intended to, with regard to this point, concrete example is described and and not intended to be more generally to scope of the present utility model in addition any restriction.The differentiation of some feature and all language of desalination are intended to represent not preferably these features, but this category feature are not got rid of completely outside entire scope of the present utility model, unless otherwise noted.
In literary composition, logarithm value scope describes the short-cut method being only intended to be used as each independent numerical value of independent reference portion within the scope of this, unless otherwise indicated herein, and by each independent numerical value combination in the description, as it is described separately the same in the text.All methods described in literary composition can adopt any suitable order to perform, unless otherwise indicated herein or in addition obviously and context conflict.
Therefore, the utility model as the law be suitable for allow comprise all remodeling of theme and equivalent that describe in appended claim.In addition, above-mentioned feature any the utility model that is combined in all possible variations thereof contained, unless otherwise indicated herein or in addition obviously and context conflict.
Claims (10)
1. the relieving mechanism for turnover ladder, described turnover ladder comprises the lever assembly (68) be connected on actuator (74), described actuator is used for described turnover ladder is rotated between extended position and the second stowed position around axis, described extended position is for being provided to the turnover of structure, and described relieving mechanism comprises:
Be connected to first release lever (78A) of described lever assembly (68), described first release lever (78A) is configured for by making described lever assembly (68) move along described axis and optionally makes described lever assembly (68) be disengaged with described turnover ladder.
2. the relieving mechanism for turnover ladder according to claim 1, is characterized in that, described relieving mechanism also comprises:
Be fixed to described lever assembly (68) and with the swivel pin that arranges of turnover ladder coaxial ground, described swivel pin comprises bias voltage in a first direction;
Be fixed to the fisrt feature portion of described turnover ladder; With
Be fixed to the second feature portion of described lever assembly (68);
Wherein, described fisrt feature portion becomes mating reaction described turnover ladder and described lever assembly (68) to be coupled together whereby with described second feature cage structure, the described bias voltage of described swivel pin makes described fisrt feature portion and described second feature portion engage, the described bias voltage that described first release lever (78A) is configured for overcoming described swivel pin moves along second direction opposite to the first direction in order to make described swivel pin, makes described fisrt feature portion and described second feature portion be disengaged whereby.
3. the relieving mechanism for turnover ladder according to claim 2, it is characterized in that, described fisrt feature portion comprises the collar (92) arranged around described swivel pin, and described second feature portion comprises the recess (40) be arranged in described lever assembly (68).
4. the relieving mechanism for turnover ladder according to claim 3, is characterized in that, the described collar (92) comprises
First key, described first key is configured for coordinating with the first keyway be formed in described recess (40); With
Second key, described second key is configured for coordinating with the second keyway be formed in described recess (40), wherein said key and described keyway (106) are configured so that described turnover ladder must be oriented in the position for making described lever assembly (68) be re-engaged, described position is identical with the turnover ladder position for making described lever assembly (68) be disengaged, and the described bias voltage of described swivel pin allows automatically to be re-engaged when described turnover ladder is in appropriate location.
5. the relieving mechanism for turnover ladder according to claim 2, is characterized in that, described relieving mechanism also comprises
There is the first release cable (76A of first end and the second end, 76B), described first release cable (76A, described first end 76B) is connected to described first release lever (78A), the described the second end of described first release cable (76A, 76B) is connected to described swivel pin.
6. the relieving mechanism for turnover ladder according to claim 5, it is characterized in that, described relieving mechanism also comprises the second release lever (78B), described second release lever (78B) is located away from described first release lever (78A), and described second release lever (78B) is configured for optionally making described lever assembly (68) be disengaged with described turnover ladder.
7. the relieving mechanism for turnover ladder according to claim 6, it is characterized in that, described relieving mechanism also comprises the second release cable (76A with first end and the second end, 76B), described second release cable (76A, described first end 76B) is connected to described second release lever (78B), and the described the second end of described second release cable (76A, 76B) is connected to described swivel pin.
8. a turnover ladder, described turnover ladder is constructed to be permeable to from extended position to stowed position, and described extended position is for being provided to the turnover of structure, and described turnover ladder comprises:
Elongated first component, described elongated first component has first end and the second end and is connected on described structure;
From at least one first step (50) that described elongated first component laterally extends;
Elongated second component, described elongated second component is associated with described elongated first component and is configured for moving relative to described elongated first component translation, described elongated second component has at least one second step (50) laterally extended from described elongated second component, wherein said elongated first component is hollow at described the second end place, and described elongated second component is configured to extend in described the second end;
Connecting rod, described connecting rod and the elongated passageway be formed in described elongated second component can pivotables and engaging slidably, described connecting rod extends described elongated second component and described structure through the slit extended in the surface being formed in described elongated first component and through described surface, what make described elongated first component makes described elongated second component move relative to described elongated first component translation from described extended position to the rotation of described stowed position, make described at least one second step (50) mobile towards described at least one first step (50) whereby,
Actuator (74), described actuator rotates around axis for making described elongated first component between described extended position and described stowed position, described actuator (74) comprises the lever with described elongated first component mating reaction, and wherein said lever structure becomes to comprise towards the bias voltage of described elongated first component; With
Relieving mechanism, described relieving mechanism mechanically disconnects for making described elongated first component and described actuator (74), described relieving mechanism comprises the first release lever (78A) away from described turnover ladder location, and described first release lever is configured for doing in order to optionally to make described lever be disengaged with described elongated first component by making described lever move along described axis with described lever mated.
9. turnover ladder according to claim 8, is characterized in that, described relieving mechanism also comprises:
To be fixed on described lever and with the swivel pin that arranges of described axis coaxle ground, described swivel pin has bias voltage in a first direction;
Be fixed on the fisrt feature portion on described turnover ladder; With
Be fixed on the second feature portion on described lever;
Wherein, described fisrt feature portion becomes mating reaction described turnover ladder and described lever to be coupled together whereby with described second feature cage structure, the described bias voltage of described swivel pin makes described fisrt feature portion and described second feature portion engage, the described bias voltage that described first release lever (78A) is configured for overcoming described swivel pin moves along second direction opposite to the first direction in order to make described swivel pin, makes described fisrt feature portion and described second feature portion be disengaged whereby.
10. turnover ladder according to claim 9, it is characterized in that, described relieving mechanism also comprises the second release lever (78B), described second release lever (78B) is located away from described first release lever (78A), and described second release lever (78B) is configured for optionally making described lever be disengaged with described turnover ladder; With
There is the second release cable (76A of first end and the second end, 76B), described second release cable (76A, described first end 76B) is connected to described second release lever (78B), described second release cable (76A, described the second end 76B) is connected to described swivel pin, wherein said first release cable (76A, 76B) be configured to keep static while the described first component of permission rotates with described second release cable (76A, 76B).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/314,573 | 2012-01-04 | ||
| US13/314,573 US8919497B2 (en) | 2008-11-07 | 2012-01-04 | Powered operator access system |
| PCT/US2012/066988 WO2013103456A1 (en) | 2012-01-04 | 2012-11-29 | Powered operator access system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151843U true CN204151843U (en) | 2015-02-11 |
Family
ID=48745363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201290001111.9U Expired - Fee Related CN204151843U (en) | 2012-01-04 | 2012-11-29 | Turnover ladder and the relieving mechanism for turnover ladder |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN204151843U (en) |
| AU (1) | AU2012363763A1 (en) |
| DE (1) | DE112012005568T5 (en) |
| WO (1) | WO2013103456A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT3006267T (en) * | 2014-10-09 | 2018-07-26 | Manitou Italia Srl | An apparatus for gaining access to lift vehicles |
| EP4212392B1 (en) * | 2022-01-17 | 2025-07-23 | Volvo Truck Corporation | Step assembly for an industrial vehicle |
| CN119301017A (en) * | 2022-05-04 | 2025-01-10 | 蓬塞有限公司 | Access step for working machine and working machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1031010A (en) * | 1977-04-21 | 1978-05-09 | Jean-Paul J. Cormier | Extensible step assembly |
| US6347686B1 (en) * | 1997-12-11 | 2002-02-19 | Hedwel Engineering Pty. Ltd. | Access device |
| US6378654B1 (en) * | 2000-07-18 | 2002-04-30 | Theodore Ziaylek, Jr. | Ladder pivotally attached to a generally vertically extending surface |
| US9238941B2 (en) * | 2005-06-16 | 2016-01-19 | Barjoh Pty Ltd | Vehicle access system |
| US8074768B2 (en) * | 2008-11-07 | 2011-12-13 | Caterpillar Inc. | Powered operator access system |
-
2012
- 2012-11-29 AU AU2012363763A patent/AU2012363763A1/en not_active Abandoned
- 2012-11-29 CN CN201290001111.9U patent/CN204151843U/en not_active Expired - Fee Related
- 2012-11-29 DE DE112012005568.3T patent/DE112012005568T5/en not_active Withdrawn
- 2012-11-29 WO PCT/US2012/066988 patent/WO2013103456A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013103456A1 (en) | 2013-07-11 |
| DE112012005568T5 (en) | 2014-11-13 |
| AU2012363763A1 (en) | 2014-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20161129 |