JP2006044556A - Gate protection device of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent scratching of a gate of a load carrying platform as it is pressed on an axle hub of an axis. <P>SOLUTION: This gate protection device of a vehicle is furnished with a protection plate 25 to prevent contact of the gate 22 and the axle hub 24 by interposing between the gate 22 in a state of opening a side surface of the load carrying platform 20 and the axle hub 24 of the axis and an interlocking mechanism 30 to move to draw up the protection plate 25 in a stored state under a floor of the load carrying platform 20 when the gate 22 on the side surface of the load carrying platform 20 closes and to interpose between the gate 22 and the axle hub 24 when the gate 22 of the side surface of the load carrying platform 20 opens. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a turning protection device for a vehicle provided with a loading platform behind a cab.

  2. Description of the Related Art In vehicles such as trucks, a loading platform equipped at the rear of a driver's cab is provided with a torii (floorector) for protecting the driver's cab on the front surface, and a ridge is provided on the rear surface and left and right side surfaces. Each turn is attached to each side of the floor surface of the loading platform so as to be openable and closable via hinges. As for the side angling of the loading platform, there is a possibility that it will collide with the vehicle side guard when opening it, so that it will be damaged by the side guard, so a rubber protector is placed on the side guard or the heel or both Is disclosed (Patent Document 1).

FIG. 3 is a side view of the large truck, and the axle is provided with a first axis to a fourth axis from the front side to the rear side. 11 is a floor board of the loading platform 10, and 13 is a hinge that supports the turn 12 on the side of the floor board 11. Reference numeral 14 denotes a second axle axle hub to which a single tire is attached. In this case, a rubber protector 15 is disposed on the outer surface of the rib 12, and the side guard 16 is received via the rubber protector 15 when the rib 12 is opened. Since the protector 15 is made of rubber, it is possible to prevent the turn 12 from colliding with the side guard 16 and being damaged.
Utility Model Registration No. 2561328

  In the case of FIG. 3, when loading / unloading, when the turn 12 is pushed due to interference with a cargo handling work vehicle (forklift, etc.), the side guard 16 is bent toward the inner side of the vehicle while hitting the hub bolt 18. May be hurt (see FIG. 4). As for the rear wheel 2 axis (3rd axis and 4th axis) side, a double tire is attached and the axle hub is hidden inside the tire, so that the rim is pressed against the hub bolt and damaged like the 2nd axis. There is nothing.

  An object of this invention is to provide an effective means for preventing such a malfunction.

  A first aspect of the present invention is a vehicle turning protection device provided with a loading platform at the rear of a driver's cab and prevents contact between the turning and the axle hub by being interposed between the turning with the side surface of the loading platform opened and the axle hub of the axle. Protection plate, when this side of the loading platform is closed, it is raised to the retracted state under the floor of the loading platform, while when the rolling of the loading platform is opened, it is caused to intervene between the turning and the axle hub. And an interlocking mechanism that operates as described above.

  According to a second aspect of the present invention, in the vehicle turning protection device according to the first aspect of the invention, the interlock mechanism includes a wire that suspends a protective plate between the turning with the side surface of the loading base open and the axle hub of the axle, A link mechanism that operates to urge the pulling of the wire in accordance with the opening of the side surface of the cargo bed while the wire is pulled up when the side surface is closed is opened.

  According to a third aspect of the present invention, in the vehicle turning protection device according to the second aspect of the invention, the link mechanism includes a first link whose one end is pivotally connected to the side turn of the loading platform via a horizontal pin, and the other end. A second link whose one end is rotatably connected via a horizontal pin, and a guide for supporting the second link so as to be movable in the vehicle width direction under the floor of the loading platform. It is connected to the other end of the second link.

  According to a fourth aspect of the present invention, in the vehicle turn protection device according to the second aspect of the present invention, the device further includes a lever mechanism that expands the stroke of the link mechanism and transmits the link mechanism to the wire on the protective plate side.

  According to a fifth aspect of the present invention, in the vehicle turn protection device according to the second aspect of the present invention, the apparatus includes a guide rail that is inclined so as to urge the protective plate to slide down to a predetermined protection state by placing the protective plate. .

  In the first invention, when the turn of the side surface of the loading platform is opened, the protection plate intervenes between the turn and the axle hub in conjunction with this. Therefore, even if the turn is pushed by interference with the cargo handling work vehicle, the protection plate is interposed between the turn and the axle hub, so that the turn can be prevented from being pressed against the axle hub and being damaged. When the protection plate is closed, the protection plate is pulled up in conjunction with this, and is stored under the floor of the loading platform, which does not interfere with traveling.

  In the second invention, the interlocking mechanism can be configured easily and inexpensively from the link mechanism and the wire.

  In the third invention, when the twist is opened, the first link operates so as to wrap around the floor of the cargo bed with the horizontal pins at both ends as fulcrums, so the second ring is pushed by the first link, Operates so that the wire under the floor is directed toward the inside of the vehicle and the wire is pulled down, and when the turn is closed, the first link moves to the side of the bed with the horizontal pins at both ends as fulcrums. Therefore, the second ring is pulled by the first link, and operates to pull up the wire with the under floor of the loading platform directed toward the outside of the vehicle. With the guide that supports the operation of the second link, the first ring can smoothly operate along a predetermined locus associated with opening and closing of the ring.

  In the fourth aspect of the invention, the lever mechanism that expands the stroke of the link mechanism makes it easy to ensure the stroke necessary for the operation from the intervention of the protective plate to the storage or vice versa.

  In the fifth invention, the guide rail causes the protective plate to be urged in one direction by its own weight and also suppresses the bending of the wire. It will be obtained.

  The figure shows an application example to a 4-axis large truck (see FIG. 3) equipped with a loading platform behind the cab. In FIGS. 1 and 2, reference numeral 21 denotes a floor plate of the loading platform 20, 22 is a rib that forms a side surface of the loading platform 20, and the winding 22 is attached to the side of the floor plate 21 through a hinge 23 so as to be opened and closed.

  Reference numeral 25 denotes a protective plate for preventing the turn 22 from being damaged by being pressed against the axle hub of the second shaft, and an interlocking mechanism 30 for causing the protection plate 25 to follow the opening and closing of the turn 22 is provided. Reference numeral 26 denotes a guide rail that constitutes a storage portion for the protective plate 25 under the floor of the loading platform 20, and the protective plate 25 is stored on the guide rail 26.

  The interlocking mechanism 30 operates to place the protective plate 25 on the guide rail 26 and pull it up to the retracted position when the turn 22 is closed, while the axle hub 24 (see FIG. 2). ) And the turn 22 so as to interpose the protective plate 25.

  The protection plate 25 is formed from a material (for example, hard resin) that does not damage the ring 22 and is connected to one end of the wire 31. The other end of the wire 31 is wound around a pulley 32 and connected to a link mechanism 33. The pulley 32 is supported under the floor of the loading platform 20 via a stay (not shown).

  The link mechanism 33 which constitutes the interlocking mechanism 30 together with these is a first link 33a whose one end is rotatably connected to the bracket 34 of the turn 22 via a horizontal pin 35, and is horizontally connected to the other end of the first link 33a. The second link 33b is connected to the other end of the second link 33b via a pin 36. The wire 31 is connected to the other end of the second link 33b. The second link 33b is supported by a guide (not shown) so as to be movable in the vehicle width direction along the under floor of the loading platform 20.

  In a state where the side surface of the loading platform 20 is closed (see FIG. 1), the first link 33a stands substantially perpendicular to the second link 33b. When the turn 22 is opened from this state, the first link 33a operates so as to go under the floor of the loading platform 20 with the horizontal pins 35 and 36 at both ends as fulcrums. Since the second link 33b is pushed by the first link 33a and operates to urge the lowering of the wire 31 with the under floor of the loading platform 20 toward the inside of the vehicle body, the protective plate 25 slides down the guide rail 26 and turns into the axle hub 24. 22 is suspended in a protective state intervening between.

  In a state where the side surface of the loading platform 20 is opened (see FIG. 2), the first link 33a lies on a straight line with respect to the second link 33b. When the turn 22 is closed from this state, the first link 33a operates to turn around the side surface of the loading platform 20 with the horizontal pins 35 and 36 at both ends as fulcrums. Since the second link 33b is pulled by the first link 33a and operates to pull up the wire 31 under the floor of the loading platform 20 toward the outside of the vehicle, the protection plate 25 is placed on the guide rail 26 and put into a predetermined retracted state. It is raised.

  The guide rail 26 is inclined so that the protective plate 25 is placed on the guide rail 26 and the protective plate 25 is urged to slide down by its own weight, and a roller 26a for smoothly moving the protective plate 25 up and down is disposed at the lower end thereof. 2, 28 is a hub bolt for fastening the tire wheel to the axle hub 24, 29 is a side rail of the vehicle, and 38 in FIG. 1 is a rubber protector.

  With such a configuration, when the turn 22 on the side surface of the loading platform 20 is opened, the protection plate 25 intervenes between the axle hub 24 and the turn 22 in conjunction with the opening. Therefore, even if the turn 22 is pushed by interference with the cargo handling work vehicle, the protection plate 25 is interposed between the turn 22 and the hub bolt 28, so that the turn 22 is prevented from being pressed against the hub bolt 28 and being damaged. can do. When the cover 22 is closed, the protection plate 25 is pulled up in conjunction with this, and is stored under the floor of the loading platform, which does not interfere with traveling.

  As shown in FIG. 2, it is conceivable to use a lever mechanism 40 that enlarges the stroke of the link mechanism 33 and transmits it to the wire 31 on the protection plate 25 side as an alternative to the pulley 32. The lever mechanism 40 is given a lever ratio by a fulcrum 41 (the center of rotation of the lever). The lever ratio is set such that the lever diameter on the link mechanism 33 side <the lever diameter on the protective plate 25 side. Such a lever mechanism 40 facilitates securing a stroke necessary for the operation from the intervention of the protective plate 25 to the storage or vice versa.

  In the illustrated embodiment, an example of application to the axle hub 24 of the second shaft to which a single tire is attached will be described. However, the wrinkle protection device itself according to the present invention is damaged by interference with the vehicle body side when the turn is opened. It can be applied to other places where there is a possibility of being applied.

It is a principal part block diagram explaining embodiment of this invention. It is explanatory drawing of the state which opened the turn similarly, and explanatory drawing of an alternative means. It is a side view and a partial explanatory view of a 4-axis large truck. It is explanatory drawing which concerns on a prior art.

Explanation of symbols

20 loading platform 21 floor plate 22 turning 24 axle hub 25 protective plate 26 guide rail 28 hub bolt 30 interlocking mechanism 31 wire 32 pulley 33 link mechanism 33a first link 33b second link 35, 36 horizontal pin 40 lever mechanism 41 fulcrum

Claims (5)

  In a vehicle having a loading platform behind the cab, a protective plate that is interposed between the turn with the side of the loading platform open and the axle hub of the axle to prevent contact between the turn and the axle hub, and this protective plate is installed on the side of the loading platform. When the curl of the cargo bed is closed, it is raised to the retracted state under the floor of the cargo bed, while when the roll of the side of the cargo bed is opened, an interlocking mechanism that operates to intervene between the gear wheel and the axle hub is provided. A vehicle turn protection device characterized by the above.   The interlocking mechanism is a wire that suspends the protective plate between the opening with the side of the loading platform open and the axle hub of the axle. 2. The vehicle turning protection device according to claim 1, further comprising a link mechanism that operates so as to facilitate pulling down of the wire when the turning is opened.   The link mechanism includes a first link whose one end is pivotally connected to the side surface of the loading platform via a horizontal pin, and a second link whose one end is pivotally connected to the other end via a horizontal pin. 3. A guide for supporting the second link so as to be movable in the vehicle width direction under the floor of the loading platform, and a wire from the protective plate is connected to the other end of the second link. Vehicle turn protection device according to the description.   The vehicle turning protection device according to claim 2, further comprising a lever mechanism that expands a stroke of the link mechanism and transmits it to the wire on the protection plate side.   The vehicle turn protection device according to claim 2, further comprising a guide rail that is inclined so as to urge the protection plate to slide down to a predetermined protection state by placing the protection plate.

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