JP6146796B2 - Electric blade snow blower - Google Patents

Description

  The present invention relates to a traveling unit that moves forward and backward by a traveling crawler belt, and a snow removal machine that includes a snow removal blade at a front portion of the traveling unit and operates a handle provided at the rear to perform a snow removal operation.

  2. Description of the Related Art Conventionally, walking type snowplows equipped with a blade for snow removal include, for example, the “snowblower” disclosed in Japanese Patent No. 4447551 (prior art 1) in which a traveling unit is driven by an electric motor, or a battery device for an electric snowblower. In Japanese Patent Application Laid-Open No. 2002-044877, comprising: a heater that warms the battery during low-temperature charging; a battery tray that houses the heater and the battery; and a controller that controls the charger and the heater. In the off-season disclosed in Japanese Laid-open Patent Publication No. (Prior Art 2) and in the off-season disclosed in Japanese Patent Laid-Open No. 2002-051477 (Prior Art 3), normal charging is performed once, and subsequently during the off-season. A snowplow having a battery charging method for an electric snowplow characterized by continuously performing trickle charging is known.

  2. Description of the Related Art Conventionally, walking type snowplows are known to have a type in which an auger for scraping snow forward and a blower for throwing snow are provided, and a type in which a blade for pushing snow forward is provided. Although these engines conventionally use an engine as a drive source, since engine noise is generated during work, the work may be restricted for noise countermeasures in urban areas or the like, particularly during nighttime or early morning work. For this reason, an electrically operated snowplow that does not use an engine and does not generate noise has been developed as a blade type snowplow that can be operated with relatively small power.

  However, the electric snow remover using a battery needs to be charged. However, the conventional electric snow remover cannot easily remove or connect the battery, and has to be charged in a low temperature environment such as outdoors. . For this reason, there has been a problem that charging efficiency is lowered and full charging cannot be performed, and that it is difficult to carry out smoothly and quickly. In addition, since it is used only during the winter season, there is a problem that the non-use period is long and induces deterioration of the battery.

  In addition, blade-type snowplows are used in places where snow removal is relatively small and where there is little snow accumulation. Therefore, it is hoped that they will be able to be used easily even by users who are relatively unfamiliar with handling machines, such as women and the elderly. It is rare.

Japanese Patent No. 44474751 (Prior Art 1) JP 2002-044877 A (Prior Art 2) JP 2002-051477 A (Prior Art 3)

  The present invention is a snow remover that can be easily and efficiently charged from the above background, and can be used easily even by users who are relatively unfamiliar with the handling of machines, such as women and the elderly. The purpose is to provide.

In order to solve the above-described problem, a tilling work machine according to claim 1 is a main body having a traveling portion that is operated by an electric motor, a snow removal blade portion provided in front of the main body, and an operation handle provided in the rear of the main body. In a snowblower with
The battery for driving the electric motor is built in a battery case that can be separated from the main body, and is connected to the battery case to supply a current to the control unit on the main body side, and a charging coupler. Coupler or charger, carrying handle , lighting light, and switch for turning on / off the light are provided, and the light is in a state where the battery case is attached to the main body and in a state where it is separated from the main body It is a snow remover characterized by being able to be turned ON / OFF in any case .

  According to a second aspect of the present invention, the connecting coupler for supplying current to the main body side is positioned at the contact portion between the battery case and the main body side, and automatically when the battery case and the main body side are brought into contact with each other. The snow remover according to claim 1, wherein the couplers provided on both sides are connected to conduct current.

Furthermore, the snow removal machine of Claim 3 is provided with the plug socket which can take out the power supply of a battery to the exterior in the battery case, The Claim 1 or Claim 2 characterized by the above-mentioned. A snowblower.

According to the first aspect of the present invention, the battery is built in the battery case that is detachable from the main body, and is connected to the battery case and connected to the main body to supply a current, and a charging coupler. Alternatively, since a charger and a handle for carrying are provided, handling at the time of charging is good, and only the battery part is separated from the main body, and charging is possible in a warm room, so that charging can be performed in an efficient state. The battery case is provided with an illumination light and a switch for turning the light on / off, and the light is turned on / off in either a state where the battery case is attached to the main body or a state where the battery case is detached from the main body. Therefore, it can be used separately as a floodlight separately from the snow removal work, and can be used outside the winter season.

  According to the second aspect of the present invention, the connection coupler for supplying current to the main body is located at the contact portion between the battery case and the main body, and automatically when the battery case and the main body are brought into contact with each other. Since the couplers provided on both sides are connected and current is conducted, it is possible to provide a snow remover that is easy to use even by users who are relatively unfamiliar with the handling of machines such as women and the elderly.

According to the invention of claim 3 , the battery case is provided with a plug socket from which the battery power can be taken out to the outside, so that it can be separated from other than snow removal work alone as an emergency power source or outdoors. It is possible to use it outside of the winter season.

It is a left view of the electric blade snow remover of this invention. It is a principal part left view of the state which moved the battery case of the electric blade snowplow of this invention ahead. It is the top view which carried out the partial cross section of the electric blade snowplow of this invention. It is a front view of the AA cross section of FIG. It is a front view of the BB cross section of FIG. It is explanatory drawing which showed the state which removed the battery case from the main body and is charging. It is a wiring diagram of the electric blade snowplow of the present invention.

  One embodiment will be described with reference to FIGS.

  The walking type electric blade snowplow of the present invention is provided with crawler belts 39 on the left and right for running, and drives the crawler belt 39 wound around with a driving wheel 35 and a rear driven wheel 37 positioned at the front part. At the front part of the crawler belt 39, a snow removing blade part 11 having a width wider than that of the left and right crawler belts 39 is provided, and at the rear part, a grip 26 is provided at the left and right rear ends to be operated by an operator. An operation handle 24 is provided. On the rear end side of the operation handle 24, a switching lever 29 for switching the traveling direction back and forth and a traveling lever 27 for turning the traveling on and off at the grip 26 are provided.

  The operation handle 24 is fixed to the blade portion 11 positioned at the front, extends rearward through the left and right inner sides of the left and right crawler belts 39, and is disposed on the front and rear sides of the crawler belt 39 in a side view. The rotating frame 15 is provided so as to be rotatable up and down around a rotating fulcrum shaft 45 that is a horizontal axis that is orthogonal to the advancing direction located at a substantially central portion between the rotating shafts. When the grip 26 part of the operation handle 24 is grasped and pushed downward, the rotating frame 15 rotates about the rotation fulcrum shaft 45 and the blade part 11 fixed to the front part can be rotated upward.

  FIG. 3 is a partial cross-sectional plan view of the electric blade snowplow of the present invention. A crawler belt 39 is provided on the left and right of the main body frame 7 located at the center, and a battery 4 for driving the electric motor 41 for traveling and a control for controlling the electric motor 41 are provided at an intermediate portion between the left and right crawler belts 39. A mechanism unit 6 is provided. From the main body frame 7, rotation shafts of a driving wheel 35 and a driven wheel 37 that drive the crawler belt 39 in the left-right direction are provided to extend. The crawler belt 39 for traveling is wound around a driving wheel 35 provided at the front and a driven wheel 37 at the rear part, and is driven by rotating the electric motor 41 provided at the driving wheel 35 part forward and backward. The operating parts of the left and right crawler belts 39 have a symmetrical structure.

  Between the crawler belt 39 and the main body frame 7, the rotating frame 15 formed of a round pipe extends in the front-rear direction, and the main body frame 7 is provided between the driving wheel 35 and the driven wheel 37 in the left-right direction. A rotation boss 44 of the rotation frame 15 is inserted into a projecting rotation fulcrum shaft 45, and the blade portion 11 is fixed to the front portion, and the operation handle 24 is fixed to the rear portion.

  The traveling unit 9 includes left and right drive wheels 35, driven wheels 37, and a crawler belt 39 spanned between the two wheels. FIG. 4 is a front view of the drive wheel 35 section. The drive wheel 35 has a symmetrical structure, and only one side will be described. The electric motor 41 is provided integrally with the drive wheel 35, and the motor case 413 covering the outer periphery of the electric motor 41 is fixed integrally with the drive wheel 35, and the stator 410 and the rotor of the electric motor 41 are placed in the motor case 413. 411 and a speed reduction portion 412 are built in, and when the electric motor 41 rotates around the rotation shaft 36 that protrudes horizontally from the main body frame 7, the drive wheel 35 also rotates on the same axis. Reference numeral 43 denotes a connecting plate for connecting and fixing the rotating shaft 36 of the driving wheel 35, the rotating shaft 38 of the driven wheel 37, and the outer end portion of the rotating fulcrum shaft 45 of the rotating frame 15, respectively. Therefore, the tension of the crawler belt 39 can be adjusted.

  Since the electric motor 41 portion is located substantially within the width of the crawler belt 39, the center of gravity is located within the width of the crawler belt 39, and the weight of the electric motor 41, which is relatively heavy among the components, is directly equal to the crawler belt. Acting on the contact pressure of 39, the driving force is improved. In addition, since the electric motor 41 that is relatively heavy compared to other components is positioned in the drive wheel 35, the center of gravity of the entire electric blade snowplow can be kept low. A change in driving force of the crawler belt 39 is small, and there is little risk of falling, and a structure with good handling can be obtained. Furthermore, since the electric motor 41 is located in the crawler belt 39, the entire configuration can be made compact.

  The traveling crawler belt 39 has a driving wheel 35 forward and a driven wheel 37 disposed behind, and is driven by rotating the electric motor 41 provided on the driving wheel 35 forward and backward. The wheel 35 is rotated and driven. When the snow is pushed by the blade part 11, the drive wheel 35 rotates forward toward the front. By rotating forward, the upper surface side, which is the grounded surface of the crawler belt 39, is pulled forward. Since the rear driven wheel 37 is in an idle state, the grounding surface side of the crawler belt 39 is also stretched, and the entire grounding surface of the crawler belt 39 uniformly presses the ground to effectively exert a driving force. On the other hand, when the driving wheel 35 is located on the rear side, the upper part of the crawler belt 39 can be easily slackened, and the ground contact surface part is relatively less likely to be in a tension state, so that it is difficult to effectively transmit the driving force. This is advantageous in terms of traction performance.

  FIG. 5 is a front view of an essential part of a section of a pivot fulcrum shaft 45 of the pivot frame 15 for pivoting the blade 11 up and down. The pivot fulcrum shaft 45 is horizontally inserted in the lower part of the main body frame 7 so as to protrude from the main body frame 7 at both ends in the left and right direction. A moving boss 44 is rotatably fitted. The battery 4 housed in the battery case 46 is located at the center of the main body frame 7. The battery 4 is positioned so that the center of gravity of the battery 4 is located between the rotation shafts of the drive wheel 35 and the driven wheel 37 disposed in front of and behind the traveling crawler belt 39 in a side view. As a result, the weight of the battery 4 effectively acts on the ground contact surface of the crawler belt 39 to improve the driving force.

  The main body 1 includes a battery unit 3 and a control unit 5 and is provided on a main body frame 7. The battery unit 3 includes a battery 4 and a battery case 46 containing the battery 4. The battery unit 3 is located in front of the main body 1 in the traveling direction and is detachable from the main body frame 7. The battery case 46 is provided with a coupling coupler 47 electrically connected to the battery 4 at the upper part on the control unit 5 side located behind the battery case 46, and at the lower part, a horizontal projection protruding from the control unit 5 side. A pin hole 48 into which a guide pin 63 in the direction is fitted is provided. Further, a handle 49 is provided on the upper surface so that the battery unit 3 can be carried. A hole for fixing to the main body frame 7 is provided in the lower front part of the battery unit 3, and is screwed to the main body frame 7 by a fixing knob 50. Further, a light 51 for night work and a light switch 52 for turning on / off the light 51 are provided in the upper front part.

  The control unit 5 includes a control mechanism unit 6 and a control mechanism unit case 61 containing the control mechanism unit 6, and is fixed to the main body frame 7. A connection coupler 62 that is detachably connected to the connection coupler 47 on the battery unit 3 side is projectingly provided on the upper part of the battery unit 3 of the control mechanism unit case 61, and is fitted into the pin hole 48 at the lower part. The guide pin 63 is projected.

  A pair of left and right guide plates 55 for guiding the battery case 46 are projected on the upper surface of the main body frame 7 on which the battery unit 3 is placed, so that the battery unit 3 can be quickly and reliably connected to or disconnected from the control unit 5. Can be done.

  The blade part 11 located at the front part laterally pushes out the snow that is pushed out by the main snow removing plate 17 that pushes out the snow, the scraper 19 that is located at the lower end thereof, and the left and right side parts. It is comprised with the side plate 21 for not letting it escape. The snow drain plate 17 is concave toward the front and is wider than the outer ends of the left and right crawler belts 39, and an opening surface 23 is formed forward in the running direction. A scraper 19 is attached to the lower end portion of the snow plate 17 over the entire width of the snow plate 17. The scraper 19 is inclined at an acute angle from the front end toward the rear, and pushes the blade portion 11 against the snow surface to bite into the snow surface. It is guided, lifted, and dropped sequentially from the upper part curved forward.

  FIG. 7 is a wiring diagram of the walking type electric blade snowplow of the present invention. The control mechanism unit 6 is wired with the battery 4, the power switch 30, the changeover lever switch 290, the travel lever switch 270, the battery fuel gauge 31, and the left and right electric motors 41. The control mechanism unit 6 is operated by operating each switch. Activates the electric motor 41. An operation panel 28 near the operation handle 24 is provided with a power switch 30 and a switching lever 29 for switching between forward and backward movements. A grip lever 26 on the left side of the operation handle 24 is provided with a travel lever 27. The travel lever switch 270 provided at the base of the travel lever 27 is turned on, and the control mechanism section 6 rotates the electric motor 41 to travel. The power switch 30 is for turning on / off the power from the battery 4. When the power switch 30 is turned on, the control mechanism 6 and the electric motor 41 can be operated. When the switch lever 29 is tilted forward, the electric motor 41 rotates in the forward direction, and when it is tilted backward, the switch 41 is provided in the base of the switch lever 29 and operated in conjunction with the switch lever switch 290. The control mechanism unit 6 is switched. The battery fuel gauge 31 is a meter that indicates the remaining capacity of the electric capacity of the battery 4.

  The control mechanism unit 6 is energized by electrically connecting the coupling coupler 62 to the coupling coupler 47. 6 and 7, reference numeral 57 denotes a charger, which includes a charging coupler 58 and a plug 58. In the illustrated example, the charger is provided separately from the snowplow main body, and is connected to the household power outlet 65 and the charging coupler 58 is connected to the coupling coupler 47 of the battery unit 3. FIG. 6 shows a state in which the battery unit 3 is taken out from the main body 1 and charged. In the present embodiment, the connecting coupler 47 of the battery unit 3 is also used for charging, but a coupler dedicated to charging may be provided. Since the battery unit 3 can be easily attached and detached, the battery unit 3 can be charged at a relatively warm place in the room, so that the charging operation can be easily performed with good charging efficiency.

  The night work light 51 provided in the front part above the battery unit 3 can be used by turning on / off a light switch 52 provided in the vicinity of the light 51. Further, since the power supply from the built-in battery 4 is connected even when the battery unit 3 is taken out from the main body 1, the light 51 can be used. When the battery unit 3 is used as an emergency power source or an outdoor power source, it is possible to insert the coupler 56a for taking out the power source into the coupling coupler 47 of the battery unit 3 shown in FIG. 7 and take out the power source from the outlet 56b at the other end. it can. Since the battery unit 3 is provided with the handle 49 and can be easily moved to a desired place, it can be used for multiple purposes. For this reason, not only the use of the snow removal work during the winter season but also the season can be utilized. A dedicated coupler may be provided for taking out the power without using the connecting coupler 47 as well.

  In addition, since this machine is an electric snow blower that does not use an engine, engine noise is not generated, and work can be performed without disturbing the neighborhood due to noise in urban areas, etc., and there are no restrictions on work hours, etc. You can work efficiently.

  Here, the attachment / detachment of the battery unit 3 will be described. To remove the battery unit 3, first release the fixing by the fixing knob 50, and then slide the body frame 7 forward along the guide plate 55 with the handle 49. As a result, the connection between the guide pin 63 and the pin hole 48 is released, and the connection between the connection coupler 47 and the connection coupler 62 is released. Then lift it vertically and remove it. The connection of the battery unit 3 is the operation opposite to that described above. The battery unit 3 is inserted in accordance with the guide plate 55 and placed on the main body frame 7 and then slid rearward to be brought into contact with the control unit 5 side. As a result, the coupling coupler 47 is coupled to the coupling coupler 62 and the guide pin 63 and the pin hole 48 are fitted. Thereafter, the battery unit 3 is fixed to the main body frame 7 by the fixing knob 50. FIG. 2 shows a state in which the battery unit 3 is slid forward on the upper surface of the main body frame 7 to release the connection between the connection coupler 47 and the connection coupler 62 and the guide pin 63 and the pin hole 48 are disengaged. Is.

  In order to perform snow removal work with the walking type electric blade snowplow of the present invention, the power switch 30 provided on the operation panel 28 of the operation handle 24 is turned on, the switching lever 29 is switched forward or backward, and the left and right of the operation handle 24 are switched. When the grip 26 is gripped and the travel lever 27 provided on the left grip 26 is further gripped, the control mechanism 6 rotates the electric motor 41 that drives the drive wheels 35 of the left and right crawler belts 39, and the crawler belt 39. To drive the electric blade snowplow. When moving, the grip 26 part is pushed down a little and the front blade part 11 is slightly lifted from the ground to move. The operation panel 28 is provided with a battery fuel gauge 31 so that the remaining amount of the battery 4 can be known.

  Move to the target snow removal location, switch the switching lever 29 in the forward direction, ground the front blade portion 11 to the snow surface, hold the left and right grips 26 and hold the traveling lever 27 forward. As the vehicle moves forward, the scraper 19 at the lower end of the snow discharge plate 17 bites into the forward snow and sequentially raises the snow along the front surface of the snow discharge plate 17 of the blade portion 11 and sequentially drops it forward from the upper curved portion. When snow gradually accumulates on the blade portion 11, the operation handle 24 is pushed down to raise the blade portion 11 and swell the snow forward. Or prodigal. At this time, when the traveling lever 27 is opened, the rotation of the electric motor 41 is stopped and the traveling is stopped. This operation is repeated to perform snow removal work. When snow is accumulated on the blade portion 11 and the operation handle 24 is pushed down, the weight of the snow applied to the blade portion 11 and the push-down force applied to the operation handle 24 cause the rotation fulcrum shaft between the drive wheels 35 and the driven wheels 37 to rotate. It acts on 45 parts, presses the grounding surface of the crawler belt 39, reduces slipping, etc., and improves a forward force.

  The present invention can be applied to a snowplow having a traveling part such as a crawler belt that is electrically operated and provided with a snow removing part in front.

DESCRIPTION OF SYMBOLS 1 Main body 3 Battery part 4 Battery 5 Control part 6 Control mechanism part 7 Main body frame 9 Traveling part 11 Blade part 15 Rotating frame 17 Snow removal board 19 Scraper 21 Side board 23 Opening surface 24 Operation handle 26 Grip 27 Traveling lever 270 Traveling lever switch 28 Operation Panel 29 Switching Lever 290 Switching Lever Switch 30 Power Switch 31 Battery Fuel Gauge 35 Drive Wheel 36 Rotating Shaft 37 Driven Wheel 38 Rotating Shaft 39 Crawler Belt 41 Electric Motor 410 Stator 411 Rotor 412 Deceleration Unit 413 Motor Case 43 Connecting Plate 44 Rotating boss 45 Rotating fulcrum shaft 46 Battery case 47 Connecting coupler 48 Pin hole 49 Handle 50 Fixing knob 51 Light 52 Light switch 55 Guide plate 56a Coupler 56b Outlet 57 Charger 58 Charging Plug 59 Plug 61 control mechanism unit case 62 connected coupler 63 the guide pins 65 a household power outlet

Claims (3)

In a snow remover comprising a main body having a traveling part that is operated by an electric motor, a blade for snow removal provided in front of the main body, and an operation handle provided in the rear of the main body,
The battery for driving the electric motor is built in a battery case that can be separated from the main body, and is connected to the battery case to supply a current to the control unit on the main body side, and a charging coupler. Coupler or charger, carrying handle , lighting light, and switch for turning on / off the light are provided, and the light is in a state where the battery case is attached to the main body and in a state where it is separated from the main body A snow remover characterized in that it can be turned ON / OFF in either case .   The coupling coupler for supplying current to the main body side is located at the contact portion between the battery case and the main body side. When the battery case and the main body side are brought into contact with each other, the couplers provided on both sides are automatically connected. The snow remover according to claim 1, wherein The snow remover according to claim 1 or 2, wherein the battery case is provided with a plug socket from which the power source of the battery can be taken out in a state of being disconnected from the main body .