JP2008195467A - Conveying device for load - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying device capable of reducing load to a hydraulic cylinder connected to a lateral plate material by preventing deflection and right/left shaking from being generated on the lateral plate material in which a plurality of floor plate materials constituting respective groups of floor plate materials are connected in the conveying device for the load in which the load is placed, the plurality of floor plate materials arranged in parallel is divided to a plurality of groups of the floor plate materials, and the load is conveyed forward by moving the floor plate materials in a longitudinal direction in every respective groups of the floor plate materials. <P>SOLUTION: In the conveying device, pads 16A, 16B, 16C slidably abutted on an upper surface of a vehicle body frame 15 are provided on lateral plate materials 12A, 12B, 12C such that the lateral plate materials 12A, 12B, 12C are advanced/retreated while being supported on the vehicle body frame 15 from below. A guide part for restricting movement in a right/left direction such that the lateral plate material 10 is not shaken to right/left side by abutting it on the vehicle body frame 15 from the side is provided on the pads 16A, 16B, 16C. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a load conveying apparatus.

  Conventionally, a plurality of floor board material groups are configured by dividing a plurality of parallel floor board materials on which the load is placed, and the load is transported forward by moving each floor board material group back and forth. There is a device.

  As one of such conveying devices, in Patent Document 1, a horizontal plate material to which a plurality of floor plate materials constituting each floor plate material group are connected, and connected to the horizontal plate material, and the horizontal plate material is moved forward and backward. A conveying apparatus including a hydraulic cylinder is disclosed. In this conveying apparatus, the horizontal plate material is disposed so as to extend in a direction substantially orthogonal to the longitudinal direction of the floor plate material, and the hydraulic cylinder is connected to the lower portion of the horizontal plate material. Then, by operating the hydraulic cylinder, the horizontal plate material and the floor plate material connected to the horizontal plate material move back and forth.

  Here, when the load is arranged to be shifted to the left or right side from the arrangement position of the hydraulic cylinder, the horizontal plate member is bent so that the load arrangement side is lowered due to the gravity of the load. The bending of the horizontal plate material causes a bending moment in the hydraulic cylinder connected to the horizontal plate material, and the oil leakage from the hydraulic cylinder can be caused by the generation of this moment.

Therefore, there is a type in which a plastic bearing material is inserted between the horizontal plate material and the vehicle body frame so that the horizontal plate material is supported by the vehicle body frame disposed below the horizontal plate material (Patent Document 2). The bearing material has a flat shape, and its lower surface is fixed to the upper portion of the body frame, and its upper surface is in contact with the lower surface of the horizontal plate material. Therefore, the horizontal plate material is supported by the vehicle body frame via the bearing.
JP-A-9-272618 JP-T-60-501499

  However, when the load is arranged so as to be deviated as described above, in addition to the above-described bending, due to the gravity of the load, left and right deflections in which the load placement side is delayed from the load non-placement side may occur in the moving horizontal plate material. That is, the horizontal plate material extending left and right is slightly rotated around the vertical axis and becomes oblique. This runout of the horizontal plate material causes a bending moment in the hydraulic cylinder connected to the horizontal plate material, and this moment may cause oil leakage from the hydraulic cylinder.

  On the other hand, since the bearing material has a flat shape and the horizontal plate material is placed on the upper surface thereof, it does not restrict the lateral deflection of the horizontal plate material. For this reason, in the conveyance device disclosed in Patent Document 2, the horizontal plate material may cause the above-described vibration of the horizontal plate material during movement, and if this vibration occurs, oil leakage will occur in the hydraulic cylinder. .

  The present invention has been made in view of the above points, and prevents the horizontal plate material to which a plurality of floor plate materials constituting each floor plate material group are connected from being bent or left and right, thereby preventing the horizontal plate material from being generated. It is an object of the present invention to provide a transfer device that can reduce a load on a hydraulic cylinder connected to a plate material.

  According to the first aspect of the present invention, either one of the horizontal plate member and the vehicle body frame is provided with a sliding member that slidably contacts the lower surface of the other horizontal plate member or the upper surface of the other vehicle body frame, and the sliding member. Is abutted from the side with the other lateral plate member or the other body frame, so that the lateral deflection of the lateral plate member is regulated.

  Specifically, in the invention of claim 1, a plurality of floor board materials on which a load is placed and arranged in parallel are divided into a plurality of floor board material groups, and a floor board material is provided for each floor board material group. A load conveying device that conveys a load forward by moving it back and forth, wherein a plurality of floor plate members constituting each floor plate group are connected, and a vehicle body disposed below the horizontal plate member A hydraulic cylinder which is supported by the frame and the vehicle body frame and which is connected to the horizontal plate member and moves the horizontal plate member forward and backward to advance and retract a plurality of floor plates connected to the horizontal plate member. And a lower surface of the other horizontal plate member or a vehicle body frame that is the other of the horizontal plate member, so that the horizontal plate member is supported by the vehicle body frame from below and moves forward and backward. Free to slide on top A sliding member in contact with the sliding member, and the sliding member is contacted from the side to the other horizontal plate member or the other body frame so that the horizontal plate member does not swing left and right. The guide part which regulates the movement of is provided.

  According to the present invention, the horizontal plate material is supported from below by the vehicle body frame via the sliding member, and the horizontal member is the other horizontal plate material or the other vehicle body frame from the side. By contacting, a guide portion is provided that regulates left and right deflection when the horizontal plate member advances and retreats. Therefore, for example, even when the load is arranged in a deviated manner, the lateral plate material is prevented from being bent or run out, and the load on the hydraulic cylinder is reduced.

  According to a second aspect of the present invention, the sliding member is provided on the horizontal plate.

  That is, when the sliding member is provided on the body frame, in order to interpose the sliding member between the lateral plate member and the body frame when the lateral plate member is moved, the sliding member is provided for the stroke distance of the lateral plate member. Must have the dimensions of According to the present invention, when the sliding member is provided on the horizontal plate member, the sliding member does not need to have a dimension corresponding to the stroke distance of the horizontal plate member as described above, and when the horizontal plate member is moved, A sliding member can be interposed between the plate member and the vehicle body frame. For this reason, the material cost of the sliding member can be reduced.

  According to a third aspect of the present invention, the hydraulic cylinder is connected to the horizontal plate member via a universal joint.

According to the present invention, since the hydraulic cylinder is connected to the horizontal plate member via a universal joint,
For example, even if a force that causes vibration to the horizontal plate material during movement acts due to wear of the sliding member or a force that causes deformation to the horizontal plate material due to uneven load, these forces are applied to the universal joint. Is not absorbed by the hydraulic cylinder.

  According to the first aspect of the present invention, either one of the horizontal plate member and the vehicle body frame is provided with a sliding member that slidably contacts the lower surface of the other horizontal plate member or the upper surface of the other vehicle body frame, The sliding member is provided with a guide portion for restricting left and right vibrations when the horizontal plate member is advanced and retracted by coming into contact with the other horizontal plate member or the other body frame from the side. Therefore, for example, even when the load is arranged in a deviated manner, the lateral plate material is prevented from being bent or run out, and the load on the hydraulic cylinder is reduced.

  According to the second aspect of the present invention, since the sliding member is provided on the horizontal plate material, the sliding member does not need to have a dimension corresponding to the stroke distance of the horizontal plate material, and when the horizontal plate material is moved, A sliding member can be interposed between the vehicle body frame and the vehicle body frame. For this reason, the material cost of the sliding member can be reduced.

  According to the third aspect of the present invention, since the hydraulic cylinder is connected to the horizontal plate member via the universal joint, even if a force causing deformation or vibration is applied to the horizontal plate member, these forces are freely adjustable. It is absorbed by the joint and does not load the hydraulic cylinder.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic plan view of a load carrying device 1 according to the present invention.

  A cargo transport device 1 (hereinafter simply referred to as a transport device 1) is intended for a truck, and includes a plurality of floor boards 10 that can be slid by bearings or the like on a floor surface of a cargo receiving portion of the truck. The floor board material 10 is divided into three floor board material groups 11A, 11B, and 11C.

  A plurality of floor board materials 10 constituting the floor board material group 11A are connected to the horizontal board material 12A, and a plurality of floor board materials 10 constituting the floor board material group 11B are connected to the horizontal board material 12B, and a plurality of floors constituting the floor board material group 11C. The plate 10 is connected to the horizontal plate 12C.

  Piston rods 13a, 13b, 13c of hydraulic cylinders 13A, 13B, 13C are connected to the horizontal plate members 12A, 12B, 12C, respectively. The floor plate member 10 of each floor plate group is connected to the piston rods 13a, 13b, 13c. Slides simultaneously with expansion and contraction. For example, all the floor board materials 10 of the floor board material group 11A connected to the horizontal board material 12A slide simultaneously with the expansion and contraction of the piston rod 13a.

  Here, an outline of the operation of the transfer device during load transfer will be described by taking as an example a case where loading of the load is started when the transfer device is in the state shown in FIG.

  In the following, the front means the direction in which the load is advanced, and the rear means the opposite. Therefore, at the time of carry-in, the driver's seat side (left side shown in FIG. 1) is the front side, and the opposite side of the driver's seat (right side shown in FIG. 1) is the rear side. On the contrary, at the time of carrying out, the driver's seat side is the rear and the opposite side is the front. In the transport apparatus shown in FIG. 1, the floor board material groups 11A, 11B, and 11C are all positioned at the forward ends, and the piston rods 13a, 13b, and 13c are in the most extended state.

  First, as shown in FIGS. 2 to 4, the floor board material groups 11A, 11B, and 11C are retreated from the state shown in FIG. 1 to the retreat end in the order of the floor board material group 11A, the floor board material group 11B, and the floor board material group 11C. In addition, the piston rods 13a, 13b, 13c contract. At this time, the horizontal plate members 12A, 12B, and 12C retreat in the order of the horizontal plate member 12A, the horizontal plate member 12B, and the horizontal plate member 12C, and the load has a frictional force that is generated between the floor plate group that is moving backward and the load. Since it becomes smaller than the frictional force generated between the floor board material group and the load during the stop, it remains stopped.

  Next, after each of the floor board material groups 11A, 11B, and 11C has completed the retreat, the piston rods 13a, 13b, and 13c are simultaneously moved to advance the floor board material groups 11A, 11B, and 11C all at once as shown in FIG. Elongate. At this time, the horizontal plate members 12A, 12B, and 12C advance all at once, and the load advances as the entire floor plate group advances.

  And in this embodiment, in order to convey a load gradually ahead, the cycle of retreat and advance of the floor board group mentioned above is repeated a predetermined number of times.

  FIG. 6 is an enlarged view of the state in which the hydraulic cylinders 13A, 13B, and 13C are connected to the horizontal plate members 12A, 12B, and 12C from above, and FIG. 7 shows the hydraulic cylinders 13A, 13B, and 13C in the horizontal plate member 12A. , 12B, 12C is an enlarged view of the state connected from below.

  Connectors 12a, 12b, and 12c for connecting the floor plate materials 10 of the floor plate material groups 11A, 11B, and 11C are provided on the horizontal plate materials 12A, 12B, and 12C, respectively, by welding or the like. The floor board material 10 of the floor board material groups 11A, 11B, and 11C is fixed to the connectors 12a, 12b, and 12c with bolts or the like.

  A vehicle body frame 15 is disposed vertically below the horizontal plate members 12A, 12B, and 12C.

  The vehicle body frame 15 includes a frame member 15a that extends in a direction substantially parallel to the longitudinal direction of the floor board material 10, and a cross member 15b that connects the frame member 15a. The hydraulic cylinders 13A, 13B, 13C are supported by the cross member 15b. Further, the horizontal plate members 12A, 12B, and 12C are disposed so as to intersect the frame member 15a in plan view.

  Here, since the horizontal plate members 12A, 12B, and 12C are connected to the piston rods 13a, 13b, and 13c of the hydraulic cylinders 13A, 13B, and 13C, they are supported in the vertical direction by the piston rods 13a, 13b, and 13c. . However, when the horizontal plate members 12A, 12B, and 12C are supported in the vertical direction only by the piston rods 13a, 13b, and 13c, and there is no means for restricting the left and right deflection of the horizontal plate members 12A, 12B, and 12C. In some cases, the horizontal plate members 12A, 12B, and 12C may be deformed, for example, when the load is arranged to be shifted to the left or right side from the arrangement position of the hydraulic cylinders 13A, 13B, and 13C. That is, when the load is arranged as described above, the horizontal plate members 12A, 12B, and 12C are bent due to the gravity of the load, or the load is lowered when the load is moved back and forth. Left and right runout can occur in which the arrangement side is delayed from the non-loading side. Then, when this bending or left / right deflection occurs in the horizontal plate members 12A, 12B, 12C, the piston rods 13a, 13b, 13c are twisted or bent, and oil leaks from the hydraulic cylinders 13A, 13B, 13C. Can be caused.

  For this reason, in the present embodiment, means for preventing the above-described bending of the horizontal plate material and left / right deflection are disposed.

  In the lower part of the horizontal plate members 12A, 12B, 12C, there is a resin in a region where the horizontal plate members 12A, 12B, 12C and the frame member 15a intersect, that is, a region where the horizontal plate members 12A, 12B, 12C and the vehicle body frame 15 intersect. Made pads (sliding members) 16A, 16B, and 16C are provided.

  Moreover, the front-end | tip of piston rod 13a, 13b, 13c and the horizontal plate material 12A, 12B, 12C are connected via universal joint 14A, 14B, 14C.

  Hereinafter, the pad and the universal joint described above will be described using the pad 16B and the universal joint 14B provided on the horizontal plate 12B as examples. Note that the pads 16A and 16C and the universal joints 14A and 14C provided on the horizontal plates 12A and 12C also have the same configuration as the pad 16B and the universal joint 14B described below.

  FIG. 8 is a cross-sectional view taken along the line AA shown in FIGS. 6 and 7.

  Two pads 16B are attached to the lower part of the horizontal plate 12B at a position spaced a predetermined distance from the universal joint 14B to the left and right. Each pad 16B is attached to the horizontal plate 12B via a metal holder 17.

  The frame member 15a includes a flange portion 150 located at the upper end, a flange portion 151 located at the lower end, and a web portion 152 that connects the flange portion 150 and the flange portion 151. The pad 16B is disposed on the flange portion 150. It is mounted on.

  A metal stopper 18 is attached to the side of the holder 17.

  FIG. 9 is an enlarged view of the pad 16B. In the same figure, (a) is a front view of the pad 16B, and (b) is a bottom view of the pad 16B.

  The pad 16B has two opposite side portions (guide portions) 160 and a connection portion 161 that connects the two side portions 160, and the flange of the frame member 15a is interposed between the two side portions 160. It has a U-shape that can sandwich the portion 150.

  Then, as shown in FIG. 8, the upper surface 161a of the connecting portion 161 is attached to the lower surface 171a of the holder 17, and the lower surface 161b of the connecting portion 161 is slidably brought into contact with the upper surface 150a of the flange portion 150 of the frame member 15a. Thus, the pad 16B is disposed between the holder 17 and the frame member 15a. By arranging in this way, the horizontal plate 12B is supported by the vehicle body frame via the pad 16B. Further, in a state where the pad 16B is disposed between the holder 17 and the frame member 15a, the flange portion 150 of the frame member 15a is sandwiched between the two side portions 160, and the side surfaces 160a of the two side portions 160 are It contacts the left and right side surfaces 150b of the flange portion 150. Thereby, the pad 16B regulates the movement in the left-right direction so that the horizontal plate 12B does not swing left and right.

  FIG. 10 is an enlarged view of the holder 17. In this figure, (a) is a front view of the holder 17, (c) is a bottom view of the holder 17, and (b) is a side view of the holder 17 as viewed from the left side shown in (a). is there.

  The holder 17 is disposed in front of and behind the upper horizontal portion 170 connected to the horizontal plate member 12B via bolts, the lower horizontal portion 171 where the lower surface 171a is joined to the upper surface 161a of the pad 16B, and the lower horizontal portion 171. It has a front plate 172a, a rear plate 172b, a first side plate 173 disposed on one of the left and right ends of the lower horizontal portion 171 and a second side plate 174 facing the first side plate 173. .

  Each of the front plate 172a and the rear plate 172b is formed with two protruding portions that protrude downward from the lower surface 171a of the lower horizontal portion 171. Reference numeral 172c denotes a protrusion formed on the front plate 172a, and the protrusion formed on the rear plate 172b is disposed at a position opposite to the protrusion 172c. Thus, the two protrusions abut on the front and rear side surfaces 161c of the pad 16B joined to the lower horizontal portion 171 to thereby restrict the back and forth deflection of the pad 16B relative to the holder 17 (see FIG. 9). .

  A stopper 18 described later is connected to the first side plate 173 with a bolt or the like.

  The second side plate 174 is formed with a protruding portion 174a that protrudes downward from the lower surface 171a of the lower horizontal portion 171.

  FIG. 11 is an enlarged view showing the stopper 18. In the same figure, (a) is a front view of the stopper 18, and (b) is a side view of the stopper 18.

  The stopper 18 has a plate shape and is detachably attached to the first side plate 173 of the holder 17 with a bolt or the like. When the pad 16B is replaced, the stopper 8 is removed from the holder 17 by releasing the fastening of the bolt or the like described above.

  In addition, the stopper 18 is a protruding portion that protrudes downward from the lower surface 171a of the lower horizontal portion 171 in the holder 17 (the line BB indicates the position of the lower surface 171a) with the pad 16B attached to the holder 17. 180. The protrusions 180 of the stopper 18 and the protrusions 174a of the second side plate 174 of the holder 17 abut on the left and right side surfaces 162 of the pad 16B, thereby restricting the left and right deflection of the pad 16B with respect to the holder 17 ( (See FIG. 9).

  FIG. 12 is a perspective view showing a state where the universal joint 14B is attached to the tip of the piston rod 13b. In the drawing, the universal joint 14B is disassembled for convenience.

  A projecting portion 130 that projects in the axial direction of the piston rod 13b is formed at the tip of the piston rod 13b.

  The universal joint 14B includes a first rotating member 140 and a second rotating member 141.

  The first rotating member 140 has two opposite side portions 140a and a connecting portion 140b that connects the two side portions 140a, and the piston rod 13b protrudes between the two side portions 140a. It has a U-shape that can sandwich the portion 130.

  The first rotating member 140 has two side portions 140a connected to the protruding portion 130 of the piston rod 13b via a pin 140c, and can swing in the vertical direction II around the pin 140c. is there.

  Further, in a state where the first rotating member 140 is coupled to the protruding portion 130 of the piston rod 13b, the surface 140d of the connecting portion 140b located on the opposite side of the protruding portion 130 protrudes in the axial direction of the piston rod 13b. A protruding portion 140e is formed.

  The second rotating member 141 has two opposing side portions 141a and a connecting portion 141b that connects the two side portions 141a, and is formed on the horizontal plate 16B between the two side portions 141a. A U-shape that can sandwich a connecting member (not shown) is provided.

  The second rotating member 141 is connected to the first rotating member 140 via the protruding portion 140e and the connecting portion 141b is connected to the first rotating member 140. The second rotating member 141 is centered on the protruding portion 140e. Thus, it can rotate around the horizontal axis (direction III shown in the figure).

  When the horizontal plate 16B is connected to the tip of the piston rod 13b via the universal joint 14B described above, the horizontal plate 16B is swung in the vertical direction II and around the horizontal axis (direction III shown in the figure). Freedom to rotate is given.

  According to the present embodiment, the pad is attached to the lower portion of the horizontal plate member via the holder and is in contact with the upper surface of the vehicle body frame, whereby the horizontal plate material is supported by the vehicle body frame via the pad. For this reason, the bending of a horizontal board | plate material is suppressed. Then, the pad attached to the lower portion of the horizontal plate material abuts on the left and right side surfaces of the body frame, thereby restricting the horizontal movement so that the horizontal plate material does not swing left and right. Therefore, even when the load is arranged on the floor board, the horizontal board is prevented from being bent or run out.

  In addition, when the floorboard material moves back and forth with the load placed on the floorboard material, the frictional force at the contact surface between the horizontal plate material and the floorboard material rotates the horizontal plate material in the direction opposite to the moving direction of the floorboard material. Acts as follows. Due to this frictional force, when the horizontal plate material rotates and tilts back and forth, a bending moment is generated in the hydraulic cylinder, and oil leakage can be caused from the hydraulic cylinder. However, since the horizontal plate material is supported by the vehicle body frame via the pad, the horizontal plate material is not tilted back and forth by the frictional force, so that oil leakage does not occur from the hydraulic cylinder.

  The pad is provided on the upper part of the vehicle body frame, and the upper surface of the pad is slidably brought into contact with the lower surface of the horizontal plate member or the lower surface of the holder attached to the lower portion of the horizontal plate member. It is also possible to regulate the lateral deflection of the horizontal plate material by supporting it on the vehicle body frame and further bringing the pad into contact with the horizontal plate material from the side.

  Moreover, in this embodiment, since the pad is attached not to the vehicle body frame that is a stationary member but to a horizontal plate member that is a moving member, the size of the pad can be reduced. That is, when the pad is attached to the vehicle body frame, the pad needs to have a dimension corresponding to the stroke distance of the horizontal plate member. However, when the pad is attached to the horizontal plate as described above, the pad does not need to have a dimension corresponding to the stroke distance of the horizontal plate, and the horizontal plate is moved between the horizontal plate and the vehicle body frame when the horizontal plate is moved. A pad can be interposed. For this reason, the size of the pad can be reduced, and the material cost of the pad can be reduced. In addition, since the stroke distance of a horizontal board | plate material is short and the problem of the material cost of a pad does not arise, when a pad is attached to a vehicle body frame, the effort which provides a pad for every horizontal board | plate material is saved.

  In addition, because the horizontal plate is connected to the piston rod via a universal joint, the wear of the pad may cause a force that causes the horizontal plate to shake during movement, or it may deform into a horizontal plate due to uneven load. Even if the force which produces is exerted, these forces are absorbed by the universal joint and do not load the piston rod. That is, in the present embodiment, the horizontal plate material is given the degree of freedom of swinging in the vertical direction and rotating around the horizontal axis by the arrangement of the universal joints. Even if a force that causes the occurrence of a force is exerted, a load is not applied to the piston rod because the horizontal plate member moves in the direction of the force.

  As the universal joint, a universal joint 19 shown in FIGS. 13 and 14 can be used instead of the above-described one.

  The universal joint 19 includes a cylindrical housing portion 190 and a bearing portion 191 accommodated in the opening 190 a of the housing portion 190.

  The bearing portion 191 has a spherical outer peripheral surface portion, is rotatably supported in the opening portion 190a of the housing portion 190, and the tip ends of the piston rods 13a, 13b, and 13c are formed in the opening portion 191a formed in the bearing portion 191. Inserted.

  By connecting the horizontal plate members 12A, 12B, and 12C and the tip ends of the piston rods 13a, 13b, and 13c via the universal joint 19, the horizontal plate members 12A, 12B, and 12C are free to rotate around the universal joint 19. Degrees are given. For this reason, even if the force causing the above-described vibration or deformation is applied to the horizontal plate members 12A, 12B, and 12C, no load is applied to the piston rod.

It is a schematic plan view of the load conveying apparatus in the present invention. It is a schematic plan view which shows the state which the floor board material group 11A completed the movement to a retreat end part. It is a schematic plan view which shows the state which the floor board material group 11B completed the movement to a retreat end part. It is a schematic plan view which shows the state which 11C of floor board material groups completed the movement to a retreat end part. It is a schematic plan view which shows the state which the floor board material group 11A, 11B, 11C completed the movement to an advance end part. It is the enlarged view which looked at the state where hydraulic cylinders 13A, 13B, and 13C were connected to the horizontal board material from the upper part. It is the enlarged view which looked at the state where hydraulic cylinders 13A, 13B, and 13C are connected to horizontal board material 12A, 12B, and 12C from the lower part. It is sectional drawing cut | disconnected by the AA line shown in FIG.6 and FIG.7. It is an enlarged view of pad 16B. FIG. 4 is an enlarged view of a holder 17. It is an enlarged view which shows the stopper. It is a perspective view showing the state where universal joint 14B was attached to the tip of piston rod 13b. It is a perspective view which shows the universal joint 19. FIG. It is sectional drawing which cut | disconnected the universal joint 19 in radial direction.

Explanation of symbols

1 Conveying device,
10 Floor board material,
11A, 11B, 11C Floor board material group,
12A, 12B, 12C Horizontal plate material,
13A, 13B, 13C Hydraulic cylinder,
14A, 14B, 14C, 19 Universal joint 15 Body frame,
16A, 16B, 16C Pad (support member).

Claims (3)

A load on which a load is placed and a plurality of floor board materials arranged in parallel are divided into a plurality of floor board material groups, and the floor board material is moved forward and backward for each floor board material group to carry the load forward. A transfer device,
A horizontal plate material in which a plurality of floor plate materials constituting each floor plate material group are connected;
A vehicle body frame disposed below the horizontal plate member;
A hydraulic cylinder that is supported by the vehicle body frame and connected to the horizontal plate member, and moves the horizontal plate member forward and backward to advance and retract a plurality of floor plate members connected to the horizontal plate member;
A lower plate of the other horizontal plate member or an upper surface of the vehicle body frame, which is the other, provided on one of the horizontal plate member and the vehicle body frame so that the horizontal plate member is supported by the vehicle body frame from below A sliding member that abuts slidably,
The sliding member is provided with a guide portion that restricts movement of the horizontal plate material from side to side so that the horizontal plate material does not swing left and right by abutting from the side to the other horizontal plate material or the other body frame. A load transporting device characterized by the above.   The load conveying device according to claim 1, wherein the sliding member is provided on the horizontal plate member.   The said hydraulic cylinder is connected to the said horizontal board material through the universal joint, The conveyance apparatus of the load of Claim 1 or 2 characterized by the above-mentioned.

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