JPH0420682Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dump device that is attached to a truck bed or the like to transport and discharge paddy, etc.

[Prior Art] A vehicle dumping device disclosed in Japanese Utility Model Application No. 61-3036 is known as an electric dumping device that is attached to a truck and slides rearward. In this dumping device, the rear side of the cargo box is pivotally connected, and the rod of an electric hydraulic jack provided on the truck bed is pivotally connected to the cargo box so that the cargo box can freely slide. Further, as a manual type dumping device, a dumping device disclosed in Japanese Utility Model Application Laid-Open No. 188036/1983 is known. This dumping device has the rear side of the cargo box pivotally mounted, and a lifting device using a chain block is provided on the cargo bed of the truck. Furthermore, Japanese Utility Model Application Publication No. 52-128209 discloses a sliding system in which a roller is pivotally supported on the chassis of a truck, a stopper is provided at the bottom of the loading platform, and the load is lowered by using the weight balance while sliding the loading platform. A dump device is disclosed.

[Problems with the prior art] By the way, a vehicle dump device equipped with an electric hydraulic jack requires a motor, a hydraulic pump, etc., which makes the dump device heavy, and the dump device, which should be provided at a relatively low price, is expensive. become. In a manual dumping device, the cargo box is slid by pulling the operating chain of the chain block, but the operation of the operating chain takes a long time, resulting in fatigue and poor workability. In addition, in a sliding dump device, when the loading platform is moved rearward, there is no guide part to guide it backwards correctly, so it may move diagonally backwards, and the center of rotation is fixed to the loading platform, so if the stopper gets caught. Since the weight balance of the loading platform is tilted backwards, there is a risk that the loading platform may tilt suddenly.

The present invention solves the above problems,
To provide a dumping device capable of safely moving and sliding a cargo box rearward in a short time and with a light force.

[Means for Solving the Problems] The present invention includes a fixed base, a cargo box provided above the fixed base, and a support leg having a roller at the lower end of the front part of the cargo box that slides the fixed base. a first supporting part of the packing box that is vertically installed; a second supporting part of the packing box that is fixed to a fixed base and has a support rod having a roller at the upper end rearward from the center of gravity of the packing box; The packing box is provided with a horizontally long guide hole in which a roller at the upper end of the second support part slides.

[Operation] When the cargo box is slid backward, the center of gravity of the cargo box moves to the rear of the support portion, and the cargo box can be slid around the support portion as the center of rotation.

[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

Reference numeral 1 denotes a frame-shaped fixed base, and this fixed base 1 is placed and fixed on the loading platform 2 of a truck. A pair of supports 3 are erected at the front corners of this fixed base 1, and
A receiving portion 4 is provided at the upper end of these columns 3.

Reference numeral 5 denotes a packing box with its top open.
A fan plate 6 is provided at the rear of the cargo box 5, and horizontally elongated guide holes 9 are provided on both sides of the base portion 7 of the cargo box 5 to serve as a guide path on which a support roller 8 (to be described later) slides. Further, support legs 10 are vertically provided at the front corners of the base portion 7, and rollers 11 for sliding the fixed base 1 are pivotally attached to the lower ends of the support legs 10.

Reference numeral 12 denotes a support part erected on the fixed base 1, and this support part 12 has a support rod 13 erected slightly behind the center of gravity G of the horizontal loading box 5, and a shaft attached to the upper end of the support rod 13. It is comprised of a support roller 8 that slides through the guide hole 9. and the guide hole 9
is formed to be longer on the front side and shorter on the rear side from the center of gravity position G. 14 is a locking device for locking the cargo box 5 on the fixed base 1 in a horizontal state, and includes a claw body 14B provided with a handle 14A pivoted on the support 3 of the fixed base 1;
It consists of a receiving shaft 14C fixed to the supporting leg 10 of the cargo box 5. 15 is a chain for closing the fan plate 6, and 16 is a viewing window made of a transparent plate provided on the side plate 5A of the cargo box. Reference numeral 17 denotes a support roller pivotally attached to the rear end of the fixed base 1.

Next, the operation of the above structure will be explained. First, when storing objects A such as paddy in the loading box 5, the support roller 8 is set so as to be located behind the center of gravity G of the loading box 5, and the claw body 14B is locked to the receiving shaft 14C. Further, the fan plate 6 is fixed by a chain 15. After setting the packing box 5 in this way, the stored items A are moved by a hopper and a thrower (not shown).
is put into packing box 5.

Next, when discharging the object A stored in the cargo box 5, first turn the handle 14A to disengage the claw body 14B and the receiving shaft 14C, and then
5 is removed to free the fan plate 6.

When the cargo box 5 is pulled rearward, the support rollers 8 slide through the horizontally long guide holes 9, and the rollers 11 slide on the fixed base 1, so that the center of gravity G of the cargo box 5 is positioned behind the support rollers 8. Located in For this reason, a rotational force F is generated in the cargo box 5 with the support roller 8 as the rotation center, and as a result, the cargo box 5 slides backward, and at the same time, the fan plate 6 opens and the stored items A are pushed out from behind. Can be discharged.
When it slides further, it is supported by the support roller 8 and the support roller 1, and the inclination angle becomes larger, so that it can be completely ejected. In this way, after the stored object A is discharged, the now lighter packing box 5 is inverted in a supported state, and the rollers 11 are placed on the fixed base 1 to return to the original state. This rear claw body 14B receiving shaft 14C
and the fan plate 6 is fixed by the chain 15.

As described above, the loading box 5 provided above the fixed base 1
is slidably provided, and a support part 12 is provided to support the cargo box 5 at one point in the sliding direction, and this support part 12 is set behind the horizontal center of gravity G of the cargo box 5. Therefore, by a simple operation of pulling and sliding the cargo box 5, that is, by moving the center of gravity G of the cargo box 5, a rotational force F is generated, and the sliding work is performed with a relatively light force. The cargo box 5 can be slid using only the handle.

Further, a support roller 8 is provided on the support portion 12, and a horizontally elongated guide hole 9 is formed in the cargo box 5, so that the cargo box 5 can be slid and rotated in a rotating state, and can be operated with a light force. In addition, there is a roller 1 rolling on a fixed base 1 on the front side of the cargo box 5.
1, and when the packing box 5 is moved horizontally, it is supported by the support rollers 8 and 11, so that sliding can be performed with a light force.

Furthermore, after the stored items A have been discharged, the lighter packing box 5 can be returned to its original state simply by reversing and sliding, so that the return operation is easy.

Further, during rearward sliding, the cargo box 5 is supported by the support rollers 8 and 17 while its inclination angle gradually increases, so that the stored items A can be completely discharged.

Note that the present invention is not limited to the above-mentioned embodiments; for example, the tip of the support part may be sharpened to make a point or line contact, or a crawler type with an endless track other than a truck may be used. Various modifications such as use in self-propelled working machines are possible.

[Effects of the invention] The present invention includes a fixed base, a loading box provided above the fixed base, and a loading box in which a support leg having a roller at the lower end that slides the fixed base is vertically disposed at the front of the loading box. a first supporting part of the loading box, a second supporting part of the loading box which is fixed to a fixed base and has a support rod having a roller at the upper end rearward from the center of gravity of the loading box; and a horizontally elongated guide hole in which the roller at the upper end of the second support part slides.
It is safe because the rollers on the second support part slide and move backwards correctly, and the rollers on the second support part are the center of rotation and gradually slide backwards as the box moves backwards, so it requires only a light force. It is possible to operate.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing a first embodiment of the present invention, and FIG. 2 is a perspective view showing the same in a sliding state. 1... Fixed base, 5... Loading box, 9... Guide hole (guide path), 12... Support part, G... Center of gravity position.

Claims (1)

[Scope of utility model registration request] a fixing base, a loading box provided above the fixing base, and a first support portion of the loading box having a supporting leg having a roller at a lower end that slides the fixing base hanging from the front part of the loading box; a second support part of the loading box, which is fixed to a fixed base and has a support rod having a roller at an upper end rearward from the center of gravity of the loading box;
1. A dump device comprising: a horizontally elongated guide hole through which a roller slides at the upper end of the support portion;