JP6543088B2 - Cargo handling vehicle - Google Patents

Description

  The present invention relates to a cargo handling vehicle capable of loading and unloading containers between a chassis and the ground, and dumping (tiling) the containers on the chassis to unload cargo in the containers.

  2. Description of the Related Art Conventionally, a cargo handling vehicle is known in which a lift arm used to attach and detach a container to and from a vehicle is rotatably connected to a dump arm that dumps the container on a chassis. This cargo handling vehicle is described, for example, in Patent Document 1.

  In the cargo handling vehicle described in Patent Document 1, a short pipe-like body is attached to a bracket provided on two dump arms provided in parallel, in a direction orthogonal to the extension direction of the dump arms. The lift arm is positioned to be sandwiched between the two dump arms, and a pipe-like body is attached at an end in a direction perpendicular to the extension direction of the lift arm. The lift arm is pivotally connected to the dump arm by the rotation shaft, which is a straight rod, penetrating the pipe-like body of each arm.

  Here, the dump arm is welded to attach the bracket or the like. This welding may cause distortion in the dump arm. When strain occurs, the central axes of the short pipe-like bodies in the two dump arms become non-linear, and become diagonal or parallel. In such a case, it is difficult to penetrate the pivot shaft into the dump arm and the lift arm, so it may be necessary to forcibly hit the pivot shaft. Therefore, the working efficiency at the time of connecting the lift arm to the dump arm has been reduced.

Unexamined-Japanese-Patent No. 2006-56414 (FIG. 4, FIG. 5)

  Then, this invention makes it a subject to provide the cargo handling vehicle which does not reduce the working efficiency at the time of connecting a lift arm to a dump arm.

The loading and unloading vehicle according to the present invention comprises: a dump arm connected to a rear portion on a chassis on which a container can be mounted so as to be able to move up and down in a longitudinal direction; and a front end portion of the dump arm to be connected so as to move up and down in a longitudinal direction; A cargo handling vehicle provided with a lift arm used when moving a container between a chassis and the ground, wherein the lift arm is juxtaposed between a pair of dump arms opposed in the vehicle width direction, The connection between the pair of dump arms and the lift arm is made by a pivot shaft extending to intersect the arms, each dump arm having a shaft receiving hole into which a part of the pivot shaft is inserted, the shaft receiving openings, said Ri hole der formed to a size that allows movement of the vehicle longitudinal direction of the pivot axis, with respect to each dump arm, the position adjusting member can be fixed in terms of moving in the longitudinal direction of the vehicle Equipped The position adjusting member is a boss portion which holds the pivot shaft and enters the shaft receiving hole of each dump arm in a state where a part of the pivot shaft is inserted into each dump arm, enters the shaft-receiving openings of the arm, is characterized in Rukoto includes a boss portion to allow movement to leave the vehicle longitudinal direction while holding the pivot shaft.

  According to the above configuration, the pivot shaft can be moved in the vehicle longitudinal direction with respect to the shaft receiving hole. Thus, the pivot shaft can be easily attached to the pair of dump arms and the lift arm.

And according to the said structure, a dumping arm can support a rotational axis reliably via the boss part of a position adjustment member.

  The position adjustment member includes a slide portion along the outer surface of the dump arm, the boss portion is fixed to the slide portion, and the slide portion fixes the position adjustment member to the dump arm. The fixing hole may have a fixing hole through which the bolt passes, and the fixing hole may be configured to be a long hole whose longitudinal direction coincides with the longitudinal direction of the vehicle.

  According to the above configuration, since the fixing hole is an elongated hole, the position adjusting member can be moved in the vehicle longitudinal direction without interference between the bolt and the slide portion. Therefore, it is easy to fix the position adjustment member after moving it in the vehicle longitudinal direction with respect to the dump arm.

In the loading and unloading vehicle according to the present invention, a dump arm is connected to a rear portion on a chassis on which a container can be mounted so as to be able to swing up and down in a longitudinal direction, and is connected to a front end portion of the dump arm so as to be able to swing in a longitudinal direction A load handling vehicle provided with a lift arm used when moving a container between a chassis and the ground, wherein the lift arm is juxtaposed between a pair of dump arms facing each other in the vehicle width direction The connection between the pair of dump arms and the lift arm is made by a pivot shaft extending to intersect the arms, and each dump arm includes an axial receiving hole into which a part of the pivot shaft is inserted. The shaft receiving hole is a hole formed to allow movement of the pivot shaft in the vehicle longitudinal direction, and a position adjustment member which can be fixed after being moved in the vehicle longitudinal direction with respect to each dump arm. The The position adjusting member is a boss that holds the pivot in a state in which a part of the pivot is inserted into each dump arm, and the vehicle longitudinal direction is maintained with the pivot held. The position adjustment member includes a slide portion along the outer surface of the dump arm, the boss portion is fixed to the slide portion, and the slide portion includes the dump portion. The arm is provided with a fixing hole through which a bolt for fixing the position adjusting member passes, and the fixing hole is a long hole whose longitudinal direction coincides with the longitudinal direction of the vehicle, and the dump arm is provided with the position adjusting member. preventing member displaced adjacent the movable direction is characterized in that it is fixed.

According to the above configuration, the pivot shaft can be moved in the vehicle longitudinal direction with respect to the shaft receiving hole. Thus, the pivot shaft can be easily attached to the pair of dump arms and the lift arm. Further, the dump arm can reliably support the pivot shaft via the boss of the position adjustment member. In addition, since the fixing hole is an elongated hole, the position adjusting member can be moved in the vehicle longitudinal direction without interference between the bolt and the slide portion. Therefore, it is easy to fix the position adjustment member after moving it in the vehicle longitudinal direction with respect to the dump arm. Further, the displacement preventing member prevents the position adjusting member after being fixed to the dump arm from moving due to an external force.

  According to the present invention, since the pivot shaft can be easily attached to the pair of dump arms and the lift arm, it is possible to provide a cargo handling vehicle that does not reduce the work efficiency when connecting the lift arm to the dump arm.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole side view of the cargo handling vehicle of this invention which mounts a container. It is a whole side view of the material handling vehicle which inclined the hook arm back and moved the container back. It is an entire side view of the material handling vehicle which shows the state just before rotating a lift arm and lowering a container on the ground. It is a whole side view of the material handling vehicle which shows the state which rotated the lift arm and lowered the container on the ground. It is the top view which looked at the lift arm and the dump arm from the top. FIG. 6 is a side view of the hook arm and the lift arm in which the lock device is in a locked state, viewed from the side. FIG. 7 is a side view showing a state in which the lock device is unlocked by tilting the hook arm of FIG. 6 rearward by a predetermined angle. It is a whole side view of the material handling vehicle which shows the state which dumped the container. It is a figure which shows the support structure of a rotational axis, and is the sectional view on the AA line of FIG. It is a figure which shows the support structure of a rotational axis, and is the figure which looked outward from the width direction inward of a dump arm (arrow B arrow of FIG. 9). It is a front view showing a position adjustment member. It is a top view which shows a position adjustment member. It is a right side view showing a position adjustment member. It is a figure which shows the support structure of a rotational axis, and is the figure which looked inward from the width direction outward of a dump arm (arrow C of FIG. 9). It is the figure which showed sequentially the assembly procedure regarding the support structure of a rotational axis, and shows a vertical frame. It is the figure which showed sequentially the assembly | attachment procedure regarding the support structure of a rotational axis, and shows the state which assembled | attached the dump arm to the vertical frame. It is the figure which showed sequentially the assembly | attachment procedure regarding the support structure of a rotational axis, and shows the state which assembled | attached the position adjustment member to the dumping arm. It is the figure which showed sequentially the assembly | attachment procedure regarding the support structure of a rotational axis, and shows the state which assembled | attached the lift arm to the dumping arm. It is the figure which showed sequentially the assembly | attachment procedure regarding the support structure of a rotational axis, and shows the state which assembled | attached the hook arm to the lift arm.

  Hereinafter, a cargo handling vehicle according to an embodiment of the present invention will be described. As shown in FIG. 1, the cargo handling vehicle V mounts a cab Ca in front of a chassis F, and mounts a cargo handling frame 1 behind the chassis F. As shown in FIG. 5, the cargo handling frame 1 includes a pair of left and right vertical frames 1A, 1A long in the front-rear direction, and a horizontal frame 1B connecting intermediate portions of the vertical frames 1A, 1A in the left-right direction. . A container Ct is mounted on the cargo handling frame 1. At the rear of the chassis F, an outrigger D is provided. The outrigger D is operated to stabilize the cargo handling vehicle V on the ground GR when the container Ct is dumped, in addition to loading and unloading.

  As shown in FIGS. 1 to 5, a pair of left and right guide rollers 2 and 2 protruding outward in the left-right direction is rotatably attached to the rear end portion of the cargo handling frame 1. The guide rollers 2 and 2 rotate and guide the container Ct while rotating the container Ct when unloading the container Ct on the cargo handling frame 1 onto the ground or when loading the container Ct from the ground onto the cargo handling frame 1.

  Further, as shown in FIG. 5, the rear end of the dump arm 3 is pivotally supported at the rear end of the cargo handling frame 1 so that the dump arm 3 can tilt around the horizontal axis 3T. ing. The dump arm 3 has a pair of left and right vertical frames 3A, 3A long in the front and rear direction, an intermediate horizontal frame 3B connecting the middle parts of the vertical frames 3A, 3A in the left and right direction, and a front end of the vertical frames 3A, 3A. And a front end lateral frame 3C to be connected. A pivot shaft 3D is penetrated near the front side of an intermediate portion of the vertical frames 3A, 3A, and the rear end portion of the lift arm 4 is integrally rotatably mounted on the pivot shaft 3D. The lift arm 4 is located between the vertical frames 3A, 3A of the dump arm 3, and its rear end overlaps the front ends of the vertical frames 3A, 3A of the dump arm 3 in the front-rear direction. Further, an intermediate portion of the lift arm 4 and a front end portion of the cargo handling frame 1 are connected by a pair of hydraulic lift cylinders 5 and 5. The lift arms 4 can be pivoted about the pivot shaft 3D by operating the lift cylinders 5 and 5 in an extendable manner.

  As shown in FIGS. 6 and 7, the proximal end of the substantially L-shaped hook arm 6 is rotatably attached to the front end of the lift arm 4 about the horizontal axis 7 in the left-right direction. A hook 8 (to be described later) 6 is configured to be tiltable in a direction (rear side) in which a hook 8 approaches a pivot shaft 3D which is a pivot center of the lift arm 4. The upper end of the hook arm 6 is provided with a substantially C-shaped hook 8 engaged with the engaging portion 12 of the container Ct. A hydraulic hook cylinder 9 is connected between an intermediate portion of the hook arm 6 and a front end portion of the lift arm 4, and the hook arm 6 is moved from the traveling posture shown in FIG. A tilt posture (a posture in which the hook 8 is at a position retracted a predetermined distance H from the traveling posture in FIG. 7 (hook described later), ie, a tilt posture in which the hook 8 is tilted by a predetermined angle in a direction approaching the pivot shaft 3D of the lift arm 4 It is possible to change the posture 8) from the traveling posture to the posture closer to the rotation shaft 3D).

  The container Ct is formed in a box shape having a plurality of traveling wheels 11 on the lower surface, and on the front side of the container Ct is provided with an engaging portion 12 engageable with the hook 8 of the hook arm 6 described later. On the rear side of the vehicle, an openable rear gate 13 is provided.

  As shown in FIGS. 6 and 7, the lower surface of the lift arm 4 is in a locked state for locking the swinging rotation of the lift arm 4 with respect to the dump arm 3 to dump the container Ct with the dump arm 3 and the lift arm 4 The lock device 10 is switchable to an unlocking state in which the hook arm 6 and the lift arm 4 unload the container Ct or unload the container Ct so as to unlock the lift pivot 4 relative to the dump arm 3. There is.

  The hook arm 6 and the lock device 10 interlock with each other, and the lock device 10 is configured to be switched from the lock state to the lock release state by tilting (attitude change) of the hook arm 6 to the rear side.

  Although the lock device 10 is unlocked and the lift arm 4 is rotated to lower the container Ct on the ground GR or load the container Ct on the ground GR in FIGS. 1 to 4, the lock portion of the lock device 10 is described. The container Ct can be dumped by rotating the dump arm 3 and the lift arm 4 together by extending the lift cylinder 5 in a state where the lock 15 is locked to the locked portion 14 (FIG. 8). In FIG. 8, by opening the rear gate 13 and then dumping the container Ct, the contents in the container Ct can be dropped and discharged downward.

  Next, a support structure of the pivot 3D will be described. As shown in FIGS. 5 and 9, the lift arms 4 are arranged in parallel between a pair of dump arms 3 facing in the vehicle width direction (left and right direction). As described above, the connection between the pair of dump arms 3 and 3 and the lift arm 4 is achieved by passing a single pivot shaft 3D extending so as to intersect (in the present embodiment, be orthogonal to) the arms 3 and 4. Is done. More specifically, the pivot shaft 3D is penetrated on the front side of the middle portion of the vertical frame 3A in each dump arm 3 and the bearing 4A provided at the rear end portion of the lift arm 4 on this pivot shaft 3D is It is mounted for free rotation.

  The vertical frame 3A in each dump arm 3 is provided with a shaft receiving hole 51 into which the left and right end portions which are a part of the pivot shaft 3D enter. Specifically, the shaft receiving holes 51 are formed in shaft support brackets 3E which are plate-like portions integrated by welding or the like on both sides of each dump arm 3 in the vehicle width direction. In this embodiment, as shown in FIG. 9, a short pipe-like body is attached to the shaft support bracket 3E so that the end faces on both sides in the vehicle width direction substantially coincide, and the shaft receiving hole 51 is formed therein. However, it is also possible not to attach a short pipe-like body.

  The shaft receiving hole 51 is a hole formed in such a size as to allow movement of the rotation shaft 3D in the vehicle longitudinal direction. Specifically, it is a circular hole formed to have a diameter larger than the outer diameter of the portion of the boss 54 in the position adjustment member 52 described later, which is located in the shaft receiving hole 51.

  Thus, each dumping arm 3 is provided with the shaft receiving hole 51 formed in such a size as to allow movement of the rotating shaft 3D in the vehicle longitudinal direction, whereby the rotating shaft 3D can be rotated relative to the shaft receiving hole 51. It is possible to move in the longitudinal direction of the vehicle. For this reason, even if distortion occurs in each dump arm 3 (shaft support bracket 3E) due to the influence of welding or the like, it is not necessary to force the pivot shaft 3D as in the conventional case, as shown in FIG. The pivot shaft 3D can be easily penetrated between the pair of dump arms 3 and 3 and the lift arm 4. Therefore, it is possible to suppress a reduction in work efficiency when connecting the lift arm 4 to the pair of dump arms 3 and 3.

  In order to move the rotation shaft 3D in the vehicle longitudinal direction, in the present embodiment, a position adjustment member 52 which can be fixed after being moved in the vehicle longitudinal direction with respect to each dump arm 3 is provided. As shown in FIGS. 11 to 13, the position adjustment member 52 includes a slide portion 53 along the outer surface of each dump arm 3 and a boss portion 54 fixed to the slide portion 53.

  As shown in FIG. 9, the slide portion 53 is shown in FIG. 13 by bending the plate-like body into a longitudinal L-shape along the outer surface and the upper surface of each dump arm 3 in the width direction outer side. Thus, the side surface 55 and the upper surface 56 are formed. A rib 57 extending in the vertical direction on the side surface 55 and extending in the vehicle width direction on the upper surface portion 56 is formed on the outer surface of the slide portion 53 when the dump arm is attached. The rib 57 is formed to resist bending stress caused by twisting or the like of the rotation shaft 3D.

  As shown in FIG. 12 and FIG. 13, the boss portion 54 is a substantially cylindrical body which is held by penetrating the side surface portion 55 of the slide portion 53. As shown in FIG. 9, a pivot shaft 3D in a state in which a part of the pivot shaft 3D is inserted into each dump arm 3 passes through the boss portion 54. Each dump arm 3 can reliably support the pivot shaft 3D via the boss portion 54. The slide portion 53 is movable along the outer surface of each dump arm 3. For this reason, the boss portion 54 allows movement in the vehicle front-rear direction while the pivot shaft 3D is in a penetrated state.

  As shown in FIGS. 11 and 13, a through hole 58 for supplying grease is formed in the lower part of the boss 54, and from the grease nipple 58N (see FIG. 9) attached to the through hole 58, Grease can be supplied to the inside of the boss portion 54 so as to lubricate the pivot shaft 3D smoothly.

  The slide portion 53 is provided with a plurality of fixing holes 59 through 59 through which bolts 52B for fixing the position adjusting member 52 to each dump arm 3 respectively penetrate. In the present embodiment, as shown in FIG. 11, three places are provided outward of the boss 54 in the side face 55, and as shown in FIG.

  Each fixing hole 59 is a long hole whose major axis direction matches the longitudinal direction of the vehicle. Therefore, the position adjustment member 52 can be moved in the vehicle longitudinal direction without interference between the bolt and the slide portion 53. Therefore, it is easy to fix the position adjustment member 52 with respect to each dump arm 3 after moving in the vehicle longitudinal direction. The movable range of each fixing hole 59 substantially coincides with the movable range of the boss 54 with respect to the shaft receiving hole 51.

  As shown in FIGS. 10 and 14, anti-slip members 60 and 61 are fixed to each dump arm 3 adjacent to the movable direction of the position adjustment member 52. A plate-like body is used as the slip prevention members 60 and 61 in the present embodiment. On the outer surface of each dump arm 3 in the vehicle width direction, two rectangular displacement preventing members 60, 60 substantially contact the front end and the rear end of the slide portion 53 as shown in FIG. Three edges other than the substantially abutting edge are welded and fixed to each dump arm 3 (shaft support bracket 3E). Further, on the inner surface in the vehicle width direction of each dump arm 3, a ring-shaped anti-displacement member 61 substantially contacts the outer periphery of the boss 54 as shown in FIG. 14, and the outer peripheral edge is welded And fixed to each dump arm 3 (shaft support bracket 3E). In the present embodiment, as shown in FIGS. 9 and 14, the pressing plate 62 is screwed to the end face of the boss 54, and the pressing plate 62 is overlapped with the anti-displacement member 61. 62 can be omitted.

  As described above, since the position adjustment member 52 is movable in the longitudinal direction of the vehicle, even if the position adjustment member 52 is bolted to each dump arm 3, when a large external force is applied to the position adjustment member 52, the solid by the bolt 52 B The position adjustment member 52 may be displaced in the longitudinal direction of the vehicle beyond the attachment force. If the position adjustment member 52 is displaced, the pivot shaft 3D may be inclined with respect to the pair of dump arms 3 and 3 and the lift arm 4. In such a case, there is a possibility that the rotary shaft 3D may be worn unevenly to cause rattling, or the rotation of the lift arm 4 may be disturbed.

  On the other hand, when the anti-slip members 60 and 61 are provided on each dump arm 3, the position adjustment member 52 after being fixed to each dump arm 3 is prevented from moving due to an external force. This is because even if the position adjustment member 52 that has received an external force moves, it can not move further by abutting on the anti-shift members 60 and 61. Therefore, the occurrence of the aforementioned trouble can be suppressed. That is, in the present embodiment, while suppressing the lowering of the work efficiency when connecting the lift arm 4 to the pair of dump arms 3 and 3 to bring it into the state shown in FIG. It is very advantageous in that the positional deviation after fixing of the position adjustment member 52 can be reliably suppressed, as in the structure in which the movement of the position adjustment member 52 in the longitudinal direction of the vehicle is not permitted.

  Moreover, since the shift preventing members 60 and 61 are welded and fixed to each dump arm 3 (shaft support bracket 3E), this fixing is strong. In addition, fixation is not limited to welding, For example, it can also be comprised so that a shift prevention member may be fixed to each dumping arm 3 by bolting.

  Next, an assembling procedure of the pair of dump arms 3 and 3 and the lift arm 4 will be described with reference to FIGS. 15 to 19 which are side views. Each figure is a side view. FIG. 15 shows a pair of vertical frames 1A, 1A. FIG. 16 shows a state in which the pair of dump arms 3 is assembled to the pair of vertical frames 1A, 1A.

  FIG. 17 shows a state in which the position adjustment member 52 is assembled to each dump arm 3. At this time, although bolts 52B (five in each position adjusting member 52) are passed through the fixing holes 59 of the position adjusting member 52, tightening of the bolts 52B is not performed yet.

  FIG. 18 shows a state in which the lift arm 4 is assembled to the pair of dump arms 3. In this assembly, the front end of the dump arm 3 is once pivoted upward around the shaft 3T from this state, and the bosses 54 of the respective position adjustment members 52 are exposed above the dump arm 3. Then, each position adjusting member 52 is moved in the longitudinal direction of the vehicle (in the direction of the arrow in the figure) with respect to each dump arm 3 in the swinging state, and the bearings 4A of the left and right position adjusting members 52, 52 and lift arm 4 And the pivot shaft 3D is passed through the bosses 54 of the respective position adjustment members 52 and the bearings 4A of the lift arm. In this centering, the lift arm 4 is parallel to each dump arm 3, and the rotational axis 3 D is adjusted to be orthogonal to each dump arm 3. In addition, when adjustment in the vertical direction is necessary for centering, for example, a spacer (shim) is interposed between the upper surface of each dump arm 3 and the upper surface portion 56 of each position adjusting member 52.

  FIG. 19 shows a state in which the hook arm 6 is assembled to the lift arm 4. By tightening the bolts 52B in this state, the position adjusting members 52 are fixed to the respective dump arms 3 at the positions where the respective position adjusting members 52 are centered. Further, the anti-slip members 60 and 61 are welded to each dump arm 3.

  Since the centering of the left and right position adjustment members 52, 52 and the lift arm 4 (especially the bearing 4A) is performed by the above assembling procedure, it is not necessary to force the rotary shaft 3D into force as in the prior art. The rotation shaft 3D can be attached smoothly. Further, since the positions of the left and right position adjustment members 52 can be finely adjusted, the front end of the lift arm 4 can be adjusted in the vehicle width direction (the direction of the arrow W in FIG. 5), and the hook 8 can be substantially centered on the vehicle. It can be located in For this reason, it is possible to prevent the container Ct from being biased to either the left or right and breaking the balance of the cargo handling vehicle V at the time of traveling or at the time of loading and unloading of the container Ct.

  As mentioned above, although one Embodiment of this invention was described, this invention can be variously deformed in the range which does not deviate from the meaning. In addition, the specific configuration of each part is not limited to the above embodiment.

  For example, in the above embodiment, the posture change of the hook arm 6 to the rear side is performed by tilting the hook arm 6 to the rear side from the traveling posture, but the present invention is not limited thereto. It may be performed by sliding the arm 6 to the rear side.

  In addition, a load handling arm (a configuration in which the lift arm does not tilt or slide) in which the lift arm 4 and the hook arm 6 are integrated may be formed.

  Further, in the above embodiment, the connection between the pair of dump arms 3 and 3 and the lift arm 4 is made by passing a single pivot shaft 3D extending orthogonally to each of the arms 3 and 4. The However, the present invention is not limited to this, and the end of the pivot shaft 3D may be located in each dump arm 3 and not penetrated.

  Further, the shaft receiving hole 51 is limited to a circular hole having a diameter larger than the outer diameter of the portion of the boss 54 positioned in the shaft receiving hole 51 as in the above embodiment. Instead, holes of various shapes having inner dimensions larger than the outer dimensions of the boss portion 54 in the vehicle longitudinal direction can be used. Therefore, for example, a long hole whose major axis direction coincides with the longitudinal direction of the vehicle can be used. In addition to holes having curved edges, polygonal holes such as rectangles can also be used.

DESCRIPTION OF SYMBOLS 1 ... cargo handling frame, 1A ... vertical frame, 1B ... horizontal frame, 2 ... guide roller, 3 ... dump arm, 3A ... vertical frame, 3B ... middle part horizontal frame, 3C ... front end horizontal frame, 3D ... rotation axis, 3T: Horizontal axis, 4: Lift arm, 5: Lift cylinder (first drive means), 6: Hook arm, 7: Horizontal axis, 8: Hook, 9: Hook cylinder (second drive means), 10: Lock device 11 travel wheel 12 engagement portion 13 rear gate 51 axial receiving hole 52 position adjustment member 52B bolt 53 slide portion 54 boss portion 55 side portion 56 upper surface Parts, 57: Ribs, 58: through holes, 58N: grease nipples, 59: fixed holes, 60: anti-displacement members, 61: anti-displacement members, D: outrigger, F: chassis, GR: ground, H: predetermined distance, V ... cargo handling vehicle

Claims (3)

A dump arm is connected to the rear of the chassis on which the container can be mounted so as to be able to swing up and down in the front and rear direction, and is connected to the front end of the dump arm so as to be able to swing up and down in the front and rear direction. A cargo handling vehicle provided with a lift arm used when moving between
The lift arms are juxtaposed between a pair of dump arms opposed in the vehicle width direction,
The connection between the pair of dump arms and the lift arm is made by a pivot shaft extending to intersect the arms.
Each dump arm is provided with a shaft receiving hole into which a part of the rotation shaft is inserted,
The shaft receiving holes, Ri vehicle holes der formed to a size that allows movement of the front-rear direction of the pivot shaft,
Each dump arm is provided with a position adjustment member which can be fixed after being moved in the longitudinal direction of the vehicle,
The position adjusting member is a boss portion which holds the rotation shaft and enters the shaft receiving hole of each dump arm in a state where a part of the rotation shaft is inserted into each dump arm, and the rotation is cargo handling vehicle, characterized in Rukoto includes a boss portion to allow movement to leave the vehicle longitudinal direction while holding the shaft. The position adjusting member includes a slide portion along an outer surface of the dump arm,
The boss portion is fixed to the slide portion,
The slide portion includes a fixing hole through which a bolt for fixing the position adjusting member to the dump arm passes.
The cargo handling vehicle according to claim 1 , wherein the fixing hole is a long hole whose longitudinal direction coincides with the longitudinal direction of the vehicle. A dump arm is connected to the rear of the chassis on which the container can be mounted so as to be able to swing up and down in the front and rear direction, and is connected to the front end of the dump arm so as to be able to swing up and down in the front and rear direction. A cargo handling vehicle provided with a lift arm used when moving between
The lift arms are juxtaposed between a pair of dump arms opposed in the vehicle width direction,
The connection between the pair of dump arms and the lift arm is made by a pivot shaft extending to intersect the arms.
Each dump arm is provided with a shaft receiving hole into which a part of the rotation shaft is inserted,
The shaft receiving hole is a hole formed to allow movement of the pivot shaft in the vehicle longitudinal direction,
Each dump arm is provided with a position adjustment member which can be fixed after being moved in the longitudinal direction of the vehicle,
The position adjustment member is a boss that holds the pivot in a state where a part of the pivot is inserted into each dump arm, and the position adjustment member holds the pivot in the vehicle longitudinal direction. Equipped with a boss that allows movement
The position adjusting member includes a slide portion along an outer surface of the dump arm,
The boss portion is fixed to the slide portion,
The slide portion includes a fixing hole through which a bolt for fixing the position adjusting member to the dump arm passes.
The fixing hole is a long hole whose major axis direction matches the longitudinal direction of the vehicle,
The dump arm, cargo handling vehicle you characterized by preventing member displaced adjacent the movable direction of the position adjusting member is fixed.