JP2002255015A - Vehicle for working - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install an outrigger jack on the front side of a vehicle, in the vehicle for mounting a fuel tank for compressed natural gas thereon. SOLUTION: The vehicle for high lift work 1 comprises fuel tanks 15 and 16 for compressed natural gas installed on both lateral outer surfaces of a chassis frame 5 extending in the longitudinal direction. A sub frame 19 is installed on the chassis frame 5. A front jack 40 comprises a support part 41 installed on both front side parts of the sub frame 19 and extending to the lateral outer side of the vehicle, a jack post 43 rotatably provided on the tip part of the support part 41, a horizontal arm 45 connected to the jack post 43 and extending in the horizontal direction, and a first jack 47 connected to the tip part of the horizontal arm 45 and extending in the vertical direction. In a fully retracted state, the first jack 47 is positioned above the fuel tanks 15 and 16 and moves between a stored position on the lateral inside of the vehicle and an extended position on the lateral outside of the vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vehicle, and more particularly, to a work vehicle having a jack for lifting and supporting a vehicle body.

[0002]

2. Description of the Related Art An aerial work vehicle for performing aerial work is provided with a driving cabin disposed at a front portion of a chassis frame extending in a front-rear direction and on a chassis frame located on a vehicle rear side of the driving cabin. Sub-frame, a boom that has a workbench at the tip and is mounted on the sub-frame so as to be able to pivot, extend and retract, and raise and lower the vehicle. In order to prevent the possibility of occurrence, there is an outrigger jack which is attached to the front and rear left and right sides of the subframe and lifts and supports the vehicle.

A pair of left and right front wheels are rotatably mounted on a chassis frame extending below the driving cabin of the aerial work vehicle, and a pair of left and right front wheels are mounted on a chassis frame on the rear side of the vehicle. Rear wheel is rotatably mounted. A fuel tank for storing a battery and light oil is mounted on a left side surface of the chassis frame between the front wheel and the rear wheel in the left-right direction in a front-rear direction. In addition, a gap is formed between the left rear end of the driving cabin and the battery, and an outrigger jack on the front left side of the vehicle is arranged in this gap and attached to the subframe. Further, a gap is formed between the right rear end of the driving cabin and the front end of the subframe, and an outrigger jack on the right front side of the vehicle is arranged in this gap and attached to the subframe. Outrigger jacks on the rear side of the vehicle are attached to both left and right ends of the subframe on the rear side of the vehicle with respect to the rear wheels.

Here, the outrigger jack is arranged in the vehicle left-right direction and is configured to be able to protrude in the vehicle left-right direction, and is configured to be able to expand and contract vertically at the tip of the outrigger beam. And a jack.

In a small aerial work vehicle having a small vehicle size, the outrigger jack disposed on the front side of the vehicle is located at the storage position in order to further stabilize the support of the vehicle by the outrigger jack. An outrigger jack is used such that the outrigger jack disposed on the front side of the vehicle and located behind the vehicle is located on the rear side of the vehicle beyond the storage position. This outrigger jack is pivotally connected to a lower portion of a protruding portion that protrudes upward from the chassis frame and is capable of swinging in the left-right direction.
The upper end is pivotally connected to the upper portion of the protruding portion, extends downward and is swingable in the left-right direction, and the intermediate portion is pivotally connected to the jack pivotally connected to the tip of the link member, and is pivotally connected between the link member and the chassis frame. And a projecting cylinder.

[0006]

However, compressed natural gas (Compressed N gas) is used instead of light oil as fuel for vehicles.
When using atural gas, the volume of the vehicle must be larger than that of the fuel tank for light oil in order to make the mileage of the vehicle the same as that of light oil. as a result,
The length of the fuel tank attached to the chassis frame between the front wheel and the rear wheel in the vehicle front-rear direction becomes longer, and there is no place to attach the outrigger jack on the front side of the vehicle.
Therefore, if the size of the compressed natural gas fuel tank is reduced, a place where the outrigger jack can be attached can be secured, but the traveling distance of the vehicle is shortened and the commercial value of the vehicle is reduced.

In order to secure a place for mounting the outrigger jack on the front side of the vehicle, a proposal has been made to relocate the mounting position of the compressed natural gas fuel tank to another place. Since the inside is filled with the high-pressure gas, there is a problem that the handling can be performed only by a person who has a special qualification for handling the high-pressure gas, and further, the remodeling of the chassis frame accompanying the relocation is increased.

Further, when the jack of the link-type outrigger jack mounted on a small aerial work vehicle is overhanged, its tip moves to the outside of the vehicle and extends downward, and the tip of the jack hits the ground. When it comes into contact with the vehicle, it moves on the ground while shifting to the outside of the vehicle. As a result, there is a problem that the vehicle shakes, a loud noise is generated, and the ground may be damaged.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and has been made to remodel a chassis without reducing the size of a natural gas fuel tank mounted between front and rear tires and without requiring relocation. An object of the present invention is to provide a work vehicle in which an outrigger jack can be attached to the front side of a vehicle without the need to move the lower end of the jack with respect to the ground even if the jack is overhanged.

[0010]

In order to solve the above-mentioned problems, a working vehicle according to the present invention includes a vehicle having a chassis frame extending in the front-rear direction (for example, a truck vehicle 3 in the second embodiment) and a vehicle having a chassis frame. Equipment such as a fuel tank mounted on at least one side surface in the left-right direction (for example, the fuel gas tank 15 and the battery B in the embodiment), and mounted on the vehicle, above the equipment and inside the vehicle in the left-right direction. A jack that is configured to be movable between the storage position and the overhang position on the outside in the left-right direction of the vehicle and that can be moved to the storage position in a contracted state and extend downward at the overhang position (for example, the front jack 4 in the embodiment).
0), and a jack moving means (for example, the link member 50 in the embodiment) that enables the jack to move between the storage position and the overhang position in a contracted state.

According to the working vehicle having the above structure, in order to move the jack from the state stored in the vehicle to the overhang position, the jack in the retracted position in the contracted state is moved to the overhang position side. The jack moves to a position above the devices and moves to the overhang position. Here, since the jack at the storage position is disposed above the devices and moves above the devices to the overhang position, there is no possibility that the jack contacts the devices. For this reason, even if the size of the equipment is large and there is no place to install the jack on the front side of the vehicle with respect to the equipment, the jack is arranged at a position above the equipment, so that the jack Can be attached. As a result, it is not necessary to reduce the size of the equipment or move it to another place, so that it is possible to prevent a reduction in the commercial value of the vehicle due to the reduction in the size of the equipment, and to reduce the equipment. It is possible to eliminate new work that occurs due to relocation.

In the working vehicle having the above structure, the jack is attached to the vehicle and connected to a vertically extending jack post, and the jack moving device retracts the jack via the jack post in the retracted position and the extended position. The turning movement may be performed between them.

According to the working vehicle having the above structure, the jack at the storage position is turned by the operation of the jack moving device from the storage position to the overhang position while being reduced via the jack post. When the jack extends downward, the lower end of the jack touches the ground and lifts and supports the vehicle. As a result, the jack extends downward from the overhang position and touches the ground, and the contact reaction force received by the tip of the jack from the ground is a force having only a direction component perpendicular to the ground. For this reason, the tip of the jack does not shift on the ground, the vehicle can be prevented from shaking due to the shift, and there is no possibility of damaging the ground.

In the working vehicle having the above-mentioned structure, the projecting position of the jack post mounted on the front side of the vehicle is in front of the center of rotation of the jack post in plan view, The projecting position of the jack post attached to the side may be configured to be on the rear side of the vehicle with respect to the rotation center position of the jack post in plan view.

According to the working vehicle having the above configuration, when the jack is extended downward from the projecting position of the jack attached to the vehicle and the jack is supported by the jack, the jack attached to the front side of the vehicle is provided. The tip of is grounded to the front side of the vehicle from the center of rotation of the jack post,
The tip of the jack attached to the rear side of the vehicle contacts the rear side of the vehicle more than the center of rotation of the jack post. As a result, compared to a vehicle in which the jack overhang position is the same as the rotation center position of the jack post in the front-rear direction of the vehicle, the jack is mounted on the front side of the vehicle and mounted on the rear side of the vehicle. The distance between the jack and the ground contact position can be increased, and the stable support in the front-rear direction of the vehicle can be further increased.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS. The present embodiment shows a form of an aerial work vehicle having a movable vehicle having a boom having a work table at a tip end.

The aerial work vehicle 1 shown in FIG. 1 is based on a truck vehicle 3 shown in FIG. Truck vehicle 3
As shown in FIG. 2, a pair of front wheels 7 and a rear wheel 9 can be arranged at both front and rear left and right ends of a chassis frame 5 extending in the front-rear direction, and the vehicle can run. 11. The rear wheel 9 is a driving wheel, and is configured to be rotatable via an drive shaft 13 to an engine E mounted on the chassis frame 5 below the driving cabin 11. A pair of fuel gas tanks 15 and 16 filled with compressed natural gas are mounted on left and right side walls of the chassis frame 5 between the front wheel 7 and the rear wheel 9. The fuel gas tanks 15 and 16 are cylindrical and extend in the front-rear direction of the vehicle, and the leading ends of the fuel gas tanks 15 and 16 are disposed at positions with a predetermined gap behind the rear end of the driving cabin 11 on the vehicle. The end is disposed at a position having a predetermined gap on the vehicle front side with respect to the rear wheel 9. A cover 17 for covering the fuel gas tanks 15 and 16 is detachably attached to the outside thereof. A cover 17 that covers the fuel gas tank 15 on the left side of the vehicle extends to near the rear end of the driving cabin 11.

A fuel hose H connected to the engine E is connected to the front end of the fuel gas tank 15 on the left side of the vehicle (the lower side in the drawing of FIG. 2A). A battery B is disposed in the gap between the front end of the fuel gas tank 16 on the right side of the vehicle and the driving cabin 11 and is attached to the chassis frame 5.

As shown in FIG. 1B, a sub-frame 19 is mounted on the chassis frame 5 on the vehicle rear side with respect to the driving cabin 11. A swivel table 21 that is driven by a swivel motor (not shown) and is configured to be horizontally swivelable is provided at a central portion of the sub-frame 19 on the vehicle front side. A boom 23 having a base end pivotally connected to the revolving base 21 and configured to be able to expand and contract is attached to the swivel base 21, and the boom 23 is configured to be moved up and down by an up / down cylinder 25. Boo 23 at the tip of boom 23
Work table 2 which is kept horizontal regardless of the undulation angle
7 is attached. Tool boxes 29, 30 extending in the vehicle front-rear direction are mounted on the sub-frame 19 above each of the fuel tanks 15, 16.

A front jack 40 in a stored state is disposed between the front ends of the tool boxes 29 and 30 and the rear end of the operation cabin 11 and above the battery B and the fuel gas tank 15. . When the front jack 40 is stored in the vehicle, the front jack 40 is inside the vehicle in the left-right direction. As shown in FIG. 3, the front jack 40 is attached to the front side of the sub-frame 19 and extends outward in the left-right direction of the vehicle. Jack post 43,
The horizontal arm 45 is connected to the jack post 43 and extends in the horizontal direction. The first arm 47 is connected to the tip of the horizontal arm 45 and extends in the vertical direction. The jack post 43 is connected to a jack turning motor 49 that turns the first jack 47 through a horizontal arm 45 to turn the first post 47. The jack post 43, the horizontal arm 45, and the jack turning motor 49
Are collectively referred to as a link member 50 or the like. The link member 50 or the like may be configured so as to manually turn the horizontal arm 45 without the jack turning motor 49.

The first jack 47 extends vertically and has an outer post 47a having a rectangular shape in plan view, an inner post 47b formed in the outer post 47a so as to be capable of extending and contracting in the vertical direction, and an inner post 47b. Post 47b
And a jack cylinder (not shown) for extending and retracting the inner post 47b with respect to the outer post 47a. The pad base 47c has its central axis substantially coaxial with the central axis of the inner post 47b.

The supporting portion 41 has a pair of supporting members 51 which are opposed to each other with a predetermined gap in the vertical direction. On the inside, a rectangular cutout portion 53 that opens to the rear side of the vehicle is formed. The notch 53 is a left and right piece 53a extending in the left and right direction and a front and rear piece 53 connected to the inner end of the left and right piece 53a and extending rearward of the vehicle.
The first jack 47 is accommodated in an area (hereinafter, this area is referred to as a “storage area K”) surrounded by the left and right section 53a and the front and rear section 53b. When the first jack 47 is accommodated in the storage area K, the first jack 47 is in a fully contracted state, and the pad base 47c is located above the battery B and above the fuel gas tank 15. Hereinafter, the first jack 47
Is stored in the storage area K and the position of the first jack 47 in plan view is referred to as the “storage position” of the front jack 40.
It is written.

In the storage position of the front jack 40, the position of the center axis of the outer post 47a is
3 is shifted by a distance X toward the vehicle rear side from the position of the rotation center axis passing through the rotation center P1. Since the front jack 40 is disposed above the fuel tank 15 and the battery B, the first jack 47 is not in the fully contracted state, but is moved from the retracted position to the extended position outside the vehicle and from the extended position to the retracted position. Cannot move, and in the overhang position
The jack 47 is configured to be allowed to extend downward. Here, the overhang position is such that when the first jack 47 turns to the outside of the vehicle, the position of the center axis of the outer post 47a is closer to the front of the vehicle than the position of the rotation center axis passing through the rotation center of the jack post 43. A position shifted by X.

As shown in FIG. 1B, rear jacks 60 are mounted on the left and right sides of the subframe 19 on the vehicle rear side of the rear wheels 9. The rear jack 60 is arranged in the vehicle left-right direction and configured to be able to protrude in the vehicle left-right direction. The rear jack 60 is configured to be vertically extensible at the tip of the outrigger beam. The second jack 61 is provided. A pad base 61a is pivotally connected to the lower end of the second jack 61. A jack operating device 6 for operating the driving of the front jack 40 and the rear jack 60 is provided at the rear end of the sub-frame 19.
A jack control device (not shown) controls the operation of the front jack 40 and the rear jack 60 in accordance with the operation of the operation lever 63a of the jack operation device 63.

Next, with regard to the operation of the aerial work vehicle 1 of the present invention, a jack extension operation for extending the front jack 40 and the rear jack 60 to lift and support the vehicle will be described. When the jack overhang operation is performed, the front jack 40 and the rear jack 60 are stored in the vehicle, and the boom 23 is stored on the subframe 19, and the aerial work vehicle 1 is moved to the work site. Shall be

When the aerial work vehicle 1 arrives at the work site, a worker (not shown) moves to the rear side of the vehicle and operates the operation lever 63a of the boom operation device 63. When the operator operates the operation lever 63a, the jack turning motor 49 of the front jack 40 operates via a jack control device (not shown) as shown in FIG. And the first jack 47 moves from the storage area K to the overhang position. still,
Since the first jack 47 is in the fully contracted state, the lower end of the first jack 47 does not contact the battery B or the fuel gas tank 15. The overhang position is jack post 43.
The first jack 47 extends beyond the jack post 43 toward the front of the vehicle because the first jack 47 is located at a position shifted from the position of the rotation center axis passing through the rotation center by a distance X toward the front of the vehicle.

When the front jack 40 reaches the overhang position, an operator (not shown) operates the boom operating device 63 shown in FIG.
Is operated to extend the jack cylinder (not shown) of the first jack 47, the inner post 47b extends downward with respect to the outer post 47a, and the pad base 47c contacts the ground J. . And
When the inner post 47b further extends downward to a predetermined length, the front side of the vehicle is lifted and supported by the front jack 40, and the front wheels 7 float above the ground J. Here, the inner post 47b extends vertically downward with respect to the outer post 47a, and the pad base 47c is
When the inner post 47b further extends with respect to the outer post 47a in contact with the pad base 47c, the pad base 47c receives only the ground reaction force having only a vertical component from the ground J. There is no deviation on J. For this reason, it is possible to prevent generation of sound and damage to the ground J due to the displacement.

As shown in FIG. 1, an operator (not shown) operates the operating lever 63a of the boom operating device 63 to operate the front jack 40 and the rear jack 60 at the same time.
Operate. Rear jack 60 by the boom operating device 63
Is operated, an outrigger beam (not shown) extends outward in the left-right direction of the vehicle to move the second jack 61 outward of the vehicle. Then, when the second jack 61 reaches a desired position, the extension movement of the outrigger beam is stopped, and the second jack 61 is stopped.
The pad base 61a is extended by extending the jack 61 downward.
Is moved downward. When the pad base 61a comes into contact with the ground J and the second jack 61 further extends downward to a predetermined length, the rear side of the vehicle is lifted and supported by the rear jack 60, and the rear wheel 9 rises above the ground J. .
As a result, the vehicle is lifted and supported in a horizontal state by the front jack 40 and the rear jack 60, and the jack extension operation is completed.

As shown in FIG. 3B, in the jack extension operation, the extension position of the front jack 40 is located on the vehicle front side with respect to the position of the rotation center axis passing through the rotation center P1 of the jack post 43. Since the position of the front jack 40 is shifted by the distance X, the position of the front jack 40 is larger than the position of the center axis of rotation of the jack post 43 in the front-rear direction of the vehicle. Position and FIG. 1 (b)
The span between the overhang positions of the rear jack 60 can be increased, and the stability of the vehicle in the front-rear direction of the vehicle can be further increased.

In the above-described embodiment, FIG.
As shown in (b), the second jack 6 of the rear jack 60 is provided.
1 illustrates an example in which the rear jack 60 is configured to project in a direction perpendicular to the front-rear direction of the vehicle. However, the present invention is not limited to this, and the rear jack 60 has the same configuration as the front jack 40 and the direction in which the second jack 61 extends. May be set on the diagonally rear side of the vehicle. In this way, by making the overhanging direction of the rear jack 60 obliquely rearward of the vehicle, the span between the overhanging position of the front jack 40 and the overhanging position of the rear jack 60 can be made longer, and the front-back direction of the vehicle can be increased. , The stability of the vehicle in the front-rear direction of the vehicle can be ensured, especially in a small aerial work vehicle having a short length in the front-rear direction.

Further, in the above-described embodiment, as shown in FIG. 3, an example in which the front jack 40 is swung about the jack post 43 as a center of rotation is used as a moving means for moving the front jack 40 between the retracted position and the extended position. Although shown, the present invention is not limited to this, and may be constituted by moving means shown in FIGS. That is, as shown in FIG. 4A, the moving means 70 shown in FIG. 4 is attached to a side portion of the sub-frame 19 and extends upward, and is attached to a lower portion of an outer wall surface of the support member 71. A first guide member 72, a second guide member 73 attached to a lower end portion of the outer post 47a of the first jack 47 extending vertically, and a link mechanism 75 attached between the support member 71 and the outer post 47a. And may be configured to include:

The link mechanism 75 has a first link member 75a having a distal end pivotally connected to the outer upper surface of the support member 71 and a lower end movably engaged with the second guide member 73 in the vertical direction, and a distal end having the outer post 47a. The second link member 75b pivotally connected to the inner front end of the second link member 75b, the lower end of which is movably engaged with the first guide member 72 in the up-down direction and rotatably connected to the center of the first link member 75a at the center. And a projecting cylinder 76 pivotally connected to the distal end of the first link member 75a at the rod side, and pivotally connected to the bottom end at the support member 71 to extend and retract the link mechanism 75 in the left-right direction. And configure. According to the moving means 70, as shown in FIG. 4B, when the extension cylinder 76 extends, the lower end portions of the first link member 75a and the second link member 75b move to the first guide member 72 and the second guide member 72. The link mechanism 75 is moved upward along the guide member 73 to extend outward in the left-right direction. As a result, the first jack 47 can be moved to the extended position outside the fuel tank 15, and the vehicle can be lifted and supported by extending the inner post 47b downward at the extended position.

The moving means 80 shown in FIG. 5 includes a support member 81 attached to the side of the sub-frame 19 and extending outward in the horizontal direction, as shown in FIG. A third jack attached to the lower end of the outer post 47a of the first jack 47 and extending downward.
A rod-side end is pivotally connected to an intermediate portion between the link member 82 and the outer post 47a, and a bottom-side end is
9 and an overhanging cylinder 76 pivotally connected to the cylinder 9.
The first jack 47 is stored inside the vehicle in a horizontal state, and when the overhang cylinder 76 extends in this state, FIG.
As shown in (1), the first jack 47 is in an upright state with the pivot position between the third link member 82 and the support member 81 as the center of rotation, and moves to the extended position outside the vehicle. As described above, the first jack 47 can be moved between the storage position and the overhanging position by the extension and retraction of the overhang cylinder 76.

As shown in FIG. 6A, a moving means 90 shown in FIG. 6 includes a support member 91 attached to the side of the sub-frame 19 and projecting outward in the left-right direction of the vehicle.
A third link member 82 pivotally connected to an intermediate portion of the outer post 47a and a lower end of the distal end of the support member 91 in the first jack 47 extending in the vertical direction;
One end is pivotally connected to the upper end of one and the other end is an outer post 47.
a fourth link member 92 pivotally connected to a projecting portion 94 projecting horizontally from the upper end of the first link member a, a rod-side end portion pivotally connected to a distal end portion of the third link member 82, and a bottom-side end portion supporting member. And a bulging cylinder 76 pivotally connected to 91. When the extension cylinder 76 extends, the fourth link member 92 and the third link member 82 swing while the first jack 47 is maintained in the vertical state, as shown in FIG. 47 moves from the storage position to the overhang position. As described above, by extending the extension cylinder 76, the first jack 47 can be moved to the extension position.

The moving means 70 shown in FIGS.
Reference numerals 80 and 90 denote a configuration in which the first jack 47 is moved in the vehicle left-right direction perpendicular to the vehicle front-rear direction. However, when the first jack 47 is attached to the front side of the vehicle, the first jack 47 is provided. The projecting direction of the first jack 47 is obliquely forward in plan view, and when the first jack 47 is attached to the rear side of the vehicle, the projecting direction of the first jack 47 is obliquely rearward in plan view. May be.

Further, as shown in FIG.
The outrigger jack 96 can be mounted on the vehicle. The outrigger jack 96 has an outrigger beam 96a that is attached to the front end of the sub-frame 19 while extending in the left-right direction of the vehicle and that can expand and contract, and a first jack 47 that is vertically attached to the tip of the outrigger beam 96a. It is configured. The outrigger jack 96, as shown in FIG.
When the 6a and the first jack 47 are fully contracted, the lower end of the first jack 47 is moved to a position above the fuel gas tanks 15 and 16 and stored. In order to extend the outrigger jack 96 from this state, as shown in FIG.
After a is moved to the overhang position, the first jack 47 is extended downward and the tip is grounded, as shown in FIG. 7C.

In order to store the outrigger beam 96a in the vehicle from the overhang state, the first jack 47 is required.
Is fully contracted, the outrigger beam 96a is contracted and the first jack 47a is moved to the fuel gas tank 15,1.
6 to the position above.

[0038]

As described above, according to the working vehicle of the present invention, equipment such as a fuel tank is mounted on at least one side in the left-right direction of the chassis frame extending in the front-rear direction. A jack that is movable between a storage position above and inside the vehicle in the left-right direction and an overhang position outside the vehicle in the left-right direction, can be moved to the storage position in a contracted state, and can extend downward at the overhang position. By mounting the jack on the vehicle, even if the size of the equipment becomes larger and there is no place to install the jack on the front side of the vehicle than the equipment, by installing the jack above the equipment, A jack can be attached. As a result, it is not necessary to reduce the size of the equipment or move it to another location, and it is possible to prevent a decrease in the commercial value of the vehicle due to the reduction in the size of the equipment, and to transfer the equipment. This can eliminate new work that occurs.

[Brief description of the drawings]

FIG. 1 shows an aerial work vehicle according to an embodiment of the present invention. FIG. 1 (a) is a plan view of the aerial work vehicle, and FIG. 1 (b) is a front view of the aerial work vehicle. .

FIGS. 2A and 2B show a truck vehicle serving as a base of an aerial work vehicle according to an embodiment of the present invention. FIG. 2A is a plan view of the truck vehicle, and FIG. 2B is a front view of the truck vehicle. It is.

3A and 3B show a front jack according to an embodiment of the present invention. FIG. 3A is a perspective view of the front jack, and FIG. 3B is a plan view of the front jack.

FIG. 4 shows a moving means of the front jack in one embodiment of the present invention.

FIG. 5 shows a means for moving the front jack in one embodiment of the present invention.

FIG. 6 shows the moving means of the front jack in one embodiment of the present invention.

FIG. 7 shows a front jack according to an embodiment of the present invention.

[Description of Signs] 1 Aerial work vehicle (work vehicle) 3 Truck vehicle (vehicle) 5 Chassis frame 15 Fuel gas tank (equipment) 40 Front jack (jack) 43 Jack post 50 Link member etc. (jack moving means) B Battery (equipment)

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kenji Ochiai 1152 Yamashita, Ryoke, Ryoke, Ageo-shi, Saitama F-term (reference) 3D026 EA06 EA07 EA28 EA38 3F333 AA08 AB04 BA12 CA15 DA06 DB10 FA10

Claims (2)

[Claims] 1. A vehicle having a chassis frame extending in the front-rear direction, equipment such as a fuel tank mounted on at least one side in the left-right direction of the chassis frame, and Is also configured to be movable upwardly between a storage position inside the vehicle in the left-right direction and a projecting position outside the vehicle in the left-right direction, is movable to the storage position in a contracted state, and extends downward at the projecting position. A work vehicle, comprising: a jack that can be moved; and a jack moving unit that can move the jack between the storage position and the overhang position in a contracted state. 2. The projecting position of the jack post attached to the front side of the vehicle is on the front side of the vehicle with respect to the rotation center position of the jack post in plan view, and attached to the rear side of the vehicle. 2. The work vehicle according to claim 1, wherein the projecting position of the jack post is located on a rear side of the vehicle with respect to a rotation center position of the jack post in a plan view. 3.