JP2007045342A - Cargo bed for truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cargo bed for a truck which allows unloading a large and heavy cargo such as general wastes or industrial wastes in a short period of time while ensuring the safety. <P>SOLUTION: The cargo bed 10 for the truck comprises: a box-shaped cargo bed base 12; a plurality of endless wires 14 arranged along the longitudinal direction of the cargo bed base 12; baskets 16 fixed to the plurality of endless wires 14; and a driving unit 18 for moving the buckets 16 along a bottom side 12A of the cargo bed base 12 via the plurality of endless wires 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a truck bed, and more particularly to a truck bed suitable for unloading loads such as general waste and industrial waste.

  Conventional trucks of this type are generally equipped with a tiltable cargo bed, and the so-called “dumping operation” is possible in which the cargo bed is tilted by raising the cargo bed and the cargo loaded on the cargo bed is slid down. It has a structure. For example, Patent Document 1 discloses a truck bed that can be tilted by an actuator.

Japanese Utility Model Publication No. 6-87065

  However, although the truck bed disclosed in Patent Document 1 is applicable to unloading relatively light loads such as gravel and earth and sand, it is large and heavy such as general waste and industrial waste. Unsuitable for unloading certain loads. In addition, the conventional truck bed requires a large working space above the vehicle body during a dumping operation, and has a risk of foreign matter being caught between the cargo bed and the vehicle body. Furthermore, in the case of certain types of industrial waste, the dumping operation itself often has a safety problem. Therefore, in many cases, loads such as general waste and industrial waste need to be unloaded by multiple workers using heavy machinery, etc., and work efficiency is poor, and a large amount of time is required for unloading the load. There was a problem that required.

  The present invention has been made to solve such problems, and while ensuring safety, at the same time, loads large and heavy loads such as general waste and industrial waste in a short time. An object of the present invention is to provide a truck bed that can be unloaded.

  A truck bed according to the present invention includes a box-shaped bed base, a plurality of endless wires arranged along the front-rear direction of the bed base, a bucket fixed to the plurality of endless wires, and the bucket. The above-mentioned problem is solved by having a drive unit that moves along the bottom surface of the loading platform base via the plurality of endless wires.

  According to the present invention, even large and heavy loads such as general waste and industrial waste that have been individually unloaded using heavy machinery or the like can be unloaded all at once with a bucket. It is possible to unload a load loaded on the loading platform base in a short time. In addition, since it is not necessary to tilt the loading platform unlike the conventional truck loading platform, there is no danger of foreign matter being caught between the loading platform and the vehicle body, and safety can be ensured.

  In addition, if the bucket is configured to be tiltable to the rear side of the cargo bed base as the cargo bed base moves rearward, the cargo does not remain in the bucket. It is possible to reliably unload the cargo loaded on top.

  A plurality of rail members are disposed on the bottom surface of the loading platform base along the front-rear direction of the loading platform base, and the bucket is configured to be movable on the rail member. It can be moved smoothly and stably along the bottom surface of the load, and the load can be unloaded more reliably.

  If the cross section of the rail member in the width direction is substantially triangular, the contact area between the carrier base and the bucket can be reduced, and a space can be secured between the carrier base and the bucket. Even if there is some foreign matter or the like on the top, the bucket can be moved without hindrance.

  Furthermore, if the rail member has a hollow structure and the endless wire is inserted into the inner space of the rail member, the endless wire can be accommodated in the rail member, thereby saving space. In addition, the exposure of the endless wire to the outside can be reduced, and safety can be ensured.

  Further, if a plurality of roller members that can roll with the movement of the bucket are arranged between the inner side surfaces of the both sides of the loading platform base and the bucket, the bucket moves more smoothly. be able to.

  Further, if the bucket is configured to have an inclined surface that inclines toward the upper side of the loading platform base, the cargo loaded on the loading platform base is lifted upward by the bucket and the loading is moved to the rear of the loading platform base. It can be pushed out and the load can be unloaded more reliably.

  The truck bed according to the present invention has an excellent effect of being able to unload large and heavy loads such as general waste and industrial waste in a short time while ensuring safety.

  Hereinafter, the truck bed according to the first and second embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic perspective view of a truck bed 10 according to the first embodiment, and FIG. 2 is a schematic rear view of the truck bed 10 viewed from the direction of arrow II in FIG.

  The truck carrier 10 according to the first embodiment includes a box-shaped carrier base 12 and a front-rear direction of the carrier base 12 (the arrow F1 direction in FIG. 1 is the front of the carrier base 12, the arrow R1 direction is the rear of the carrier base 12). ) Arranged along the plurality of endless wires 14, the bucket 16 fixed to the plurality of endless wires 14, and the bucket 16 via the plurality of endless wires 14. And a drive unit 18 that moves along the bottom surface 12 </ b> A of the loading platform base 12.

  An upper opening 12B that enables loading of loads such as general waste and industrial waste is formed above the loading platform base 12 and the loading end of the loading platform base 12 is used to unload the loading. Therefore, a rear door (not shown) that can be opened and closed is provided. The shape of the “load bed base” according to the present invention is not limited to the shape of the load bed base 12 according to the first embodiment. For example, the upper portion of the load bed base is closed to load and unload the load. You may make it carry out from a back door.

  Further, guide members 20 made of a rod-shaped body having a substantially C-shaped cross section are attached to the inner side surfaces 12C on both sides of the loading platform base 12 with an upward inclination from the front to the rear of the loading platform base 12, respectively. . Each endless wire 14 is inserted into the internal space of the guide member 20.

  The bucket 16 includes a bottom plate 16A, a back plate 16B provided orthogonal to the bottom plate 16A, and two side plates 16C having a substantially right triangle shape provided on both sides of the bottom plate 16A and the back plate 16B. In the first embodiment, the shape is frequently used for a bucket of a forklift. The rear corners of each side plate 16C of this bucket 16 (the corners where the bottom plate 16A and the back plate 16B are orthogonal) are fixed to the endless wire 14 through the opening of the guide member 20. It is preferable that the opening of the guide member 20 is closed with synthetic rubber or the like so that foreign matter such as dust or dust does not enter the inside of the guide member 20.

  Further, a plurality of roller members 22 that can roll as the bucket 16 moves are disposed between the inner side surface 12 </ b> C on both side surfaces of the loading platform base 12 and the bucket 16.

  A drive unit 18 is disposed below the bottom surface 12 </ b> A of the loading platform base 12. In the first embodiment, the drive unit 18 includes a drive motor 18A, a drive shaft 18B coupled to the drive motor 18A so that power can be transmitted, and rolling rollers 18C disposed at both ends of the drive shaft 18B. The endless wire 14 can be driven in the F2 direction or the R2 direction in FIG. 1 by driving the drive motor 18A.

  Next, the operation of the truck carrier 10 according to the first embodiment will be described with reference to FIG.

  When the endless wire 14 is driven in the direction of the arrow R2 by the drive unit 18, the bucket 16 fixed to the endless wire 14 is located behind the load carrier base 12 along the bottom surface 12A of the load carrier base 12 (rear of the vehicle body of the truck). Move to R1. Then, the load loaded on the bottom surface 12 </ b> A of the loading platform base 12 is pushed out to the rear of the loading platform base 12 by the bucket 16 and unloaded from the loading platform base 12. Further, the endless wire 14 is inclined upward and backward from the front of the cargo bed base 12 by the guide member 20, so that the rear corner of the side plate 16C of the bucket 16 is gradually lifted by the endless wire 14, The bucket 16 is inclined little by little toward the rear side of the loading platform base 12 as the loading platform base 12 moves rearward. Therefore, when the bucket 16 reaches the rear end of the loading platform base 12, the cargo accommodated in the bucket 16 is also unloaded from the bucket 16 to the outside of the loading platform base 12.

  On the other hand, when the unloading of the load is finished and the endless wire 14 is driven in the direction of the arrow F2 by the driving unit 18, the bucket 16 moves to the front F1 side of the vehicle body, and a predetermined stop position (the position shown in FIG. 1). ) To stop.

  According to the truck carrier 10 according to the first embodiment, the box-like carrier base 12, the plurality of endless wires 14 disposed along the front-rear direction of the carrier base 12, and the plurality of endless wires 14 are fixed. And a drive unit 18 that moves the bucket 16 along the bottom surface 12A of the load carrier base 12 via a plurality of endless wires 14, conventionally, using heavy machinery or the like Even large and heavy loads such as general waste and industrial waste that were unloaded individually can be unloaded at once with the bucket 16 and loaded on the bed base 12 The load can be unloaded in a short time. In addition, since it is not necessary to tilt the loading platform unlike the conventional truck loading platform, there is no danger of foreign matter being caught between the loading platform and the vehicle body, and safety can be ensured.

  Further, since the bucket 16 is configured to be able to incline to the rear side of the cargo bed base 12 as the cargo bed base 12 moves rearward, the cargo does not remain in the bucket 16, so The load loaded on the base 12 can be reliably unloaded.

  Furthermore, since a plurality of roller members 22 that can roll with the movement of the bucket 16 are disposed between the inner side surface 12C on both sides of the loading platform base 12 and the bucket 16, the movement of the bucket 16 is further improved. It can be done smoothly.

  Next, the truck bed 40 according to the second embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5. 4 is a schematic perspective view of the truck bed 40 according to the second embodiment, and FIG. 5 is a schematic rear view of the truck bed 40 viewed from the direction of arrow V in FIG. The same parts as those of the truck carrier 10 according to the first embodiment are denoted by the same reference numerals in the drawing, and the description thereof is omitted.

  The truck carrier 40 according to the second embodiment includes a box-shaped carrier base 42, and a plurality of (four in the second embodiment) endless wires 44 disposed along the front-rear direction of the carrier base 42. The bucket 46 is fixed to the plurality of endless wires 44, and the drive unit 48 moves the bucket 46 along the bottom surface 42 </ b> A of the cargo bed base 42 via the plurality of endless wires 44. .

  A plurality (four in this example) of rail members 50 are arranged on the bottom surface 42 </ b> A of the carrier base 42 along the front-rear direction of the carrier base 42. The bucket 46 is disposed on the rail member 50. Is configured to be movable along the load carrier base bottom surface 42A.

  As shown in FIG. 5, the rail member 50 has a hollow structure having a substantially triangular cross section in the width direction. Each endless wire 44 is inserted into the internal space of the rail member 50.

  The bucket 46 is configured to have an inclined surface 46A inclined toward the upper side of the loading platform base 42, and the bottom portion of the inclined surface 46A is formed through an opening formed above each rail member 50. It is fixed to each endless wire 44.

  A drive unit 48 is disposed in the rear part of the loading platform base 42. In the second embodiment, the drive unit 48 includes a drive motor 48A, a drive shaft 48B coupled to the drive motor 48A so as to be able to transmit power, and four rollers disposed on the drive shaft 48B at substantially equal intervals. And a driving roller 48A. The driving motor 48A drives the endless wire 44 in the direction F2 or R2 in FIG.

  Next, the operation of the truck bed 40 according to the second embodiment will be described.

  When the endless wire 44 is driven in the direction of the arrow R2 in FIG. 4 by the drive unit 48, the bucket 46 fixed to the endless wire 44 is located behind the load carrier base 42 along the bottom surface 42A of the load carrier base 42 (the vehicle body of the truck). Move to R1. Then, the load loaded on the bottom surface 42 </ b> A of the loading platform base 42 is pushed out to the rear of the loading platform base 42 by this bucket 46 and unloaded from the loading platform base 42.

  On the other hand, when the unloading of the load is completed and the endless wire 44 is driven in the direction of the arrow F2 by the driving unit 48, the bucket 46 moves to the front F1 side of the vehicle body, and a predetermined stop position (the position shown in FIG. 4). ) To stop.

  According to the truck carrier 40 according to the second embodiment, as with the truck carrier 10 according to the first embodiment, conventional wastes, industrial wastes, and the like that have conventionally been individually unloaded using heavy equipment or the like. Even a large and heavy load can be unloaded at once with the bucket 46, and the load loaded on the loading platform base 42 can be unloaded in a short time. In addition, since it is not necessary to tilt the loading platform unlike the conventional truck loading platform, there is no danger of foreign matter being caught between the loading platform and the vehicle body, and safety can be ensured.

  A plurality of rail members 50 are disposed on the bottom surface 42 </ b> A of the loading platform base 42 along the front-rear direction of the loading platform base 42, and the bucket 46 is configured to be movable on the rail member 50. Can be moved smoothly and stably along the load carrier base bottom surface 42A, and the load can be unloaded more reliably.

  Furthermore, since the cross section of the rail member 50 in the width direction is substantially triangular, the contact area between the cargo bed base 42 and the bucket 46 can be reduced, and a space can be secured between the cargo bed base 42 and the bucket 46. The bucket 46 can be moved without any trouble even if there is some foreign matter or the like on the loading platform base 42.

  Furthermore, since the rail member 50 has a hollow structure and the endless wire 44 is inserted into the inner space of the rail member 50, the endless wire 44 can be accommodated in the rail member 50, thus saving space. In addition, the exposure of the endless wire 44 to the outside can be reduced, and safety can be ensured.

  Moreover, since the several rail member 50 is arrange | positioned at substantially equal intervals, the bucket 46 can be moved more stably.

  Furthermore, since the bucket 46 is configured to have an inclined surface 46A that is inclined upward toward the loading platform base 42, the loading of the loading platform base 42 is performed while the loading loaded on the loading platform base 42 is lifted upward by the bucket 46. The load can be pushed out, and the load can be unloaded more reliably.

  The configuration of the “truck carrier” according to the present invention is not limited to the configuration of the truck carriers 10 and 40 according to the first and second embodiments, and for example, as shown in FIGS. 6 and 7. A simple truck carrier 60 may be used.

  The truck carrier 60 is wound around pulleys 66 installed in front of and behind the carrier base 12, two endless wires 62 disposed substantially horizontally along the longitudinal direction of the carrier base 12, and the carrier base 12. And a plurality of rolling members (driving members) 64 disposed between the bottom surface 12A of the load carrier base 12 and the bottom plate 16A of the bucket 16. Goro) 68 (shown only in FIG. 7). With such a truck carrier 60 as well as the truck carriers 10 and 40 according to the first and second embodiments, while ensuring safety, at the same time, large and heavy waste such as general waste and industrial waste. A load can be unloaded in a short time.

  That is, the “truck loading platform” according to the present invention includes a box-shaped loading platform base, a plurality of endless wires disposed along the front-rear direction of the loading platform base, and a bucket fixed to the plurality of endless wires. A truck loading platform configured to include a drive unit that moves the bucket along the bottom surface of the loading platform base via the plurality of endless wires.

  The truck bed according to the present invention can be applied to a truck bed that collects and transports various loads from small loads to large loads, but is particularly large in general waste and industrial waste. It is suitable for a truck bed that collects and transports heavy loads.

1 is a schematic perspective view of a truck bed according to Embodiment 1 of the present invention. Schematic rear view as seen from arrow II in FIG. Schematic side view of the truck bed Schematic perspective view of a truck bed according to Embodiment 2 of the present invention. Schematic rear view seen from arrow V in FIG. Schematic perspective view of a truck bed according to another embodiment of the present invention. Schematic rear view as seen from arrow VII in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 40, 60 ... Truck carrier 12, 42 ... Carrier base 14, 44, 62 ... Endless wire 16, 46 ... Bucket 18, 48, 64 ... Drive part 20 ... Guide member 22 ... Roller member 50 ... Rail member

Claims (6)

  A box-shaped cargo bed base, a plurality of endless wires disposed along the front-rear direction of the cargo bed base, a bucket fixed to the plurality of endless wires, and the bucket via the plurality of endless wires. A truck loading platform comprising: a drive unit that moves along a bottom surface of the loading platform base. In claim 1,
The truck bed is characterized in that the bucket is configured to be inclined to the rear side of the bed base as the bed base moves rearward. In claim 1 or 2,
A plurality of rail members are disposed on the bottom surface of the load carrier base along the front-rear direction of the load carrier base,
The truck bed is characterized in that the bucket is configured to be movable on the rail member. In claim 3,
The track carrier is characterized in that a cross section in the width direction of the rail member has a substantially triangular shape. In any one of Claims 1 thru | or 4,
A truck bed, wherein a plurality of roller members that can roll in accordance with the movement of the bucket are disposed between inner sides of both sides of the bed base and the bucket. In any one of Claims 1 thru | or 5,
2. The truck bed according to claim 1, wherein the bucket has an inclined surface that is inclined toward the upper side of the bed base.

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