JP3000260B2 - Transport vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting box used for harvesting and transporting vegetables and fruits in a house or a field, or a seedling box for agricultural work. In particular, the present invention relates to a transportable vehicle that can be mounted on a transportable vehicle regardless of the size of the packing box.

[0002]

2. Description of the Related Art Conventionally, when harvesting vegetables and fruits, hold the harvesting basket in hand or hang it on the shoulder. Since the work of storing was performed, fatigue was severe and the back was often hurt, and it was difficult to work for a long time. In order to reduce the fatigue and back pain of such harvesting work, and to perform the harvesting work efficiently, place the packing box corresponding to the body frame of the carrier on the carrier of the carrier and move the carrier. While harvesting. However, since a single farmhouse produces various vegetables and fruits, some of the crops to be harvested are large and some are small. Must. Therefore, the carrier of the transport vehicle also needs to be adapted to these harvesting boxes. Along with this, there has been a problem that carriers having different sizes must be prepared and changed.

[0003] Therefore, in order to solve such inconvenience, a device disclosed in Japanese Utility Model Publication No. 7-17630 has been proposed. This is to solve the above-mentioned disadvantages, and `` the pair of left and right front wheels, the pair of left and right rear wheels and the pair of Are connected to each other via a connecting rod which is extendable and contractible in a direction perpendicular to the traveling direction of the transport trolley. " This is the vertical
Since it is configured to be able to expand and contract horizontally, there is an advantage that it is possible to cope with harvesting boxes of different sizes.

However, when changing the size of the transport trolley according to the size of the harvesting cargo box and adapting it, a large number of fixing screws are used to fix the connecting rod, which is complicated. Therefore, there is a part where the fixing screw is forgotten to be tightened. This can cause the truck to rattle, causing the harvesting crates to fall off the truck, damaging the harvested crop and requiring disposal.
In addition, there is a problem that an unexpected accident may occur to the worker when the harvesting box falls.

[0005]

DISCLOSURE OF THE INVENTION The present invention is directed to a transport vehicle in which the size of a mounting portion can be changed according to the size of a cargo box for harvesting crops, and the structure and operation thereof are simple. It is an object of the present invention to provide a practically more excellent transport vehicle on which a harvesting cargo box can be securely mounted and which does not cause rattling.

[0006]

According to the first aspect of the present invention, there is provided a left and right carrier frame 1 and a front support which is provided at right angles to the left and right carrier frames 1. 2, a central support 3, a rear support 4, a front support frame 5, which rises in an arch shape from the front ends of the left and right carrier frames 1, and a left and right carrier frame 1.
Left and right rear connecting girders 6 rising from the rear end, and a handle 7 connected to the left and right rear connecting girders 6 and rising in an arch shape;
In a transport vehicle including left and right rear wheels 8 provided on the left and right lower portions of the rear support 4 and left and right front wheels 9 provided on the left and right lower portions of the front support, the right and left outer portions protrude from the rising portion 10 of the front support frame 5. The front rotating frame mounting piece 11 is fixed to the rising portion 10 and protrudes right and left outward from the rear connecting girder 6.
2 and a support 14 having a post-working arm fixing piece 13 projecting obliquely upward and rearward on the inside of the left and right sides is fixed to the rear connection girder 6, and the front and rear feet 15 and the frame rod 16 bridged between the feet. The left and right rotating frames 17 each having a U-shape formed of
5 is rotatably supported on the front and rear rotating frame mounting pieces 11 and 12 by front and rear shaft holes 18 provided at the front end of the arm 5, a horizontally elongated slot 20 is provided in the operation arm 19, and a shaft hole 21 is provided on the other end side. The operation arm 19 is provided at a position ahead of the rear shaft hole 18 of the rear foot 15 of the rotating frame 17.
The pivot frame 17 and the operation arm 19 are rotatable by attaching a shaft hole 21 at the other end of the operation arm 19, and a fixing screw 22 screwed to an end of the operation arm fixing piece 13 of the support 14 is attached to the operation arm 19. Can be fixedly screwed through the slot 20, and by changing the slot fixing position by the fixing screw 22, the linear motion of the operation arm 19 can be converted into the circular motion of the turning frame to widen the turning frame. It is a transport vehicle that can be widened and widened.

According to the second aspect of the present invention, the horizontally long slot 20 provided in the operation arm 19 has the operation arm 19 horizontal at the end of the slot 20 of the operation arm 19 and at the center of the length of the slot 20. Sometimes, an end fitting groove 23 and a center fitting groove 24 projecting diagonally upward inside are formed, and the portion of the slot 20 is obliquely upward from the end fitting groove 23 toward the center fitting groove 24. The fixing screw 2 is formed in the inclined groove hole 31 which shifts to the bottom, and protrudes downward from the groove wall opposite to the end fitting groove 23 of the groove wall of the central fitting groove 24.
2, and a slot 20 is formed below the center fitting groove 24 to form a sloped step 33 that is bent downward and inclined from the center fitting groove 24, and one end of the operating arm 19 extends from the center fitting groove 24. The slot 20 extending to the end of the side half is formed in the terminal slot 34 extending horizontally, and the end fitting groove 23, the center fitting groove 24 and the terminal slot 3 are formed.
With the end of 4 being the fixing position of the fixing screw 22, the frame bar 16 of the rotating frame 17 is lifted, the top dead center position 25, the projecting position 26 where the frame bar 16 is laterally extended, and the frame bar 16 are lowered. 2. The carrier according to claim 1, wherein said carrier can be fixed at a bottom dead center position.

[0008]

Embodiments of the present invention will be described with reference to the drawings. The basic framework of the transport vehicle is between the left and right luggage frames 1 arranged in parallel and spaced apart from each other.
At right angles to the carrier frame 1, three ridges, namely, a front ridge 2, a central ridge 3, and a rear ridge 4, are stretched from the front to the rear. The front ridge 2 and the rear ridge 4 are arranged inward from the end of the carrier frame 1 to the center ridge 3 so that the radius of rotation can be reduced to allow a small turn when used as a transport vehicle. To prevent the foot from hitting when pressed and moved. At the front end of the loading frame 1, a front supporting frame 5 that supports the load box by being arched over the right and left rising portions 10 via the rising portions 10 that rise vertically upward from the loading frame 1 is provided. A rear connecting girder 6 for connecting a handle 7 for pushing a transport vehicle is provided at the front end of the carrier frame 1.
Is established. The handle 7 is formed by bending a pipe that fits into the rear connection girder 6 and rises slightly backward in the middle, and then connects the left and right pipes in an arch shape. Rear wheels 8 and 8 are provided on the left and right below the rear ridge 4, and front wheels 9 and 9 made of casters are provided on the left and right of the front ridge 2.

According to the present invention, the left and right rising portions 10 and 10 of the front support frame 5 are further provided in the basic frame of the above-mentioned transport vehicle.
The front rotation frame mounting pieces 11, 11 projecting outward from the rising portion 10 of the front support frame 5 to the left and right sides are fixedly mounted. Further, a support body 14 having a rear rotating frame mounting piece 12 and an operation arm fixing piece 13 projecting obliquely upward and rearward inside.
Are attached to the left and right rear connection girders 6, 6 by, for example, welding, with the rear turning frame mounting piece 12 facing outward. After projecting to the left and right outer sides, the rotating frame mounting pieces 12, 12
In addition, U-shaped rotating frames 17, 17 each including a front and rear foot portion 15 and a frame rod 16 bridged between these foot portions, are formed by front and rear shaft holes 18, 18 provided at the tip of each foot portion. The front and rear rotating frame mounting pieces 11 and 12 are rotatably supported. on the other hand,
An operation arm 19 having a slot 20 is prepared. The slot 20 is provided in a half of one end of the operation arm 19.
Are formed in parallel with the longitudinal direction of A shaft hole 21 is provided on the other end of the operation arm 19. Then, the shaft hole 21 on the other end side of the operation arm 19 is attached to the front position of the rear shaft hole 18 of the rear foot portion 15 of the rotation frame 17, that is, the frame bar 16 side, and the rotation frame 17 and the operation arm 19 are turned. It is pivotally supported. Further, a fixing screw 22 screwed to the end of the operation arm fixing piece 13 of the support 14 is passed through the slot 20 of one half of the operation arm 19 and is fixedly screwed. In this embodiment, the loading frame 1 is provided with a non-slip 29 made of rubber or a soft synthetic resin having high abrasion as shown in FIG. In this example, the non-slip 29 is formed partially, but may be formed entirely.

FIG. 2 is a partially exploded view showing how the support 14, the rear frame 15 of the rotating frame 17 and the operating arm 19 are mounted. As shown in FIG. 2, the slot 20 of the operation arm 19 is provided in one half of the inside of the operation arm 19. And the operation arm 1
9 and an end fitting groove 23 which projects obliquely upward and inward when the operation arm 19 is turned horizontally near the center of the slot 20 and the center of the slot 20 and the center fitting. The grooves 24 are respectively formed.

As shown in FIG. 3A, the operation arm fixing piece 13 of the support 14 is formed so as to project obliquely upward and rearward inward. The rear foot 15 of the rotating frame 17 is also formed so as to protrude rearward from the mounting portion of the rear rotating frame mounting piece 12 of the support 14. Therefore, the rear rotating frame mounting piece 12 of the support 14
There is a gap between the control arm 19 and
When the operation arm 19 is handled with a fingertip, the operability is good without a finger touching anything other than the operation arm 19. An operation finger hook 30 is provided at the inner end of the operation arm 19 as shown in FIG.

The shape of the slot 20 of the operation arm 19 will be described with reference to FIG. 3B. As described above, the slot 20 provided in the half of the one end of the operation arm 19 is located at the end of the slot from the center. It is an end fitting groove 23 that protrudes in a key shape inside, that is, obliquely upward on the finger rest 30 side. The slot 20 extends from the end of the slot toward the finger rest 30 side while being inclined slightly upward, and forms an inclined slot 31 which is continuous with the center fitting groove 24. Therefore, when the rotating frame 17 that has been lifted up and is in the standing state is rolled downward to move laterally to the widened state or vice versa, the finger hook 30 of the operation arm 19 is slightly lifted. And the fixing screw 22 can naturally linearly move the operation arm 19 along the inclined groove 31, and the rotating frame 17 can be widened or erected.

The central fitting groove 24 of the fixing screw is formed so as to face in the same direction as the end fitting groove 23, and the groove wall of the central fitting groove 24 on the finger hook 30 side is a pair of groove walls. Since the contact groove wall 32 protrudes slightly below the contact groove wall 32, when the axis of the fixing screw 22 relatively moves from the end of the groove hole 20 to the inclined groove hole 31, it comes into contact with the contact groove wall 32. Into the central fitting groove 24 naturally.

Further, a slot 20 is formed under the central fitting groove 24.
Is bent downward to form an inclined step portion 33 which is inclined.
Therefore, when the rotating frame 17 in the widened state is further rotated and lowered, the operation arm 19 is lifted and lowered, and the fixing screw 2 is fixed.
The operation is easy because the inclined step portion 33 can naturally slide and move the screw shaft 2. On the contrary, when the rotating frame 17 is rotated upward, the operation arm 19 can be easily moved. The slot 20 extending from the central fitting groove 24 in the direction of the finger hook 30 is formed substantially horizontally along the operation arm 19 to form a terminal slot 34. The terminal slot 34 is a long slot for rotating the rotating frame 17 and lowering it downward.

FIG. 3C shows the end fitting groove 23 of FIG.
And the center fitting groove 2 further intermediate between the
4 are provided, and a plurality of central fitting grooves 24 are thus provided.
Is formed, the widening of the rotating frame 17 can be changed in multiple steps.

The operation principle of the rotating frame 17 by the operation arm 19 in the present invention will be described with reference to FIG. FIG.
(B) schematically shows the rear foot 15 of the rotating frame 17, the operating arm 19 and the slot 20 thereof, the support 14 is omitted, and the rear axle of the rear foot 15 of the rotating frame 17 is shown. The position is indicated by the position of the hole 18 and the position of the fixing screw 22. In this figure, the position of the rear shaft hole 18 and the position of the fixing screw 22 do not move at the fixed position. The rear foot 15 of the rotating frame 17 can rotate from the upward top dead center position 25 through the lateral overhang position 26 to the downward bottom dead center position 27 about the position of the rear shaft hole 18. By the way, according to the present invention, when a circle having a radius from the rear shaft hole 18 to the shaft hole 21 of the rear foot portion 15 is drawn around the position of the rear shaft hole 18 as shown in FIG. It is formed in the vicinity of 45 degrees on the circle in the upper right second quadrant. In this manner, when the rear foot 15 is at the upper dead center position 25 facing upward, the slot 20 of the operating arm 19 is
Abuts on the fixing screw 22 at the central portion thereof to minimize the distance between the fixing screw 22 and the shaft hole 21 of the rear foot 15. Hindfoot 1
When the arm 5 is in the horizontal overhang position 26, the slot 20 of the operating arm 19 abuts the fixing screw 22 at the overhang position 26, and the distance between the fixing screw 22 and the shaft hole 21 of the rear foot 15 is set to an intermediate distance. . When the rear foot 15 is located at the bottom dead center position 27 facing downward, the slot 20 of the operating arm 19 is
At one end side of 9, the distance between the fixing screw 22 and the shaft hole 21 of the rear foot portion 15 by contacting the fixing screw 22 is maximized. Therefore,
By changing the fixing position of the slot 20 by the fixing screw 22, that is, by moving the slot 20 linearly, the front and rear feet 15 of the turning frame 17 are converted into circular motion and turned.

As shown in FIG. 4A, the rotating frame 17 is rotated in the direction of the arrow from the bottom dead center position shown by the solid line to the top dead center position shown by the two-dot chain line as shown in FIG. Can move.
FIG. 5 shows another embodiment of the present invention. In this example, a punching metal 28 is provided in the latter half between the left and right carrier frames 1, 1.
I have. In this way, for example, as shown in the figure, one of the rotating frames 17 is lowered, and is seated on the punching metal 28, and a seedling box, a fertilizer box, a harvesting box, or the like is placed on the other of the loading frame frames 1, 1, and is seated. You can move to the side and work in the field. Of course, small items can be placed on the punching metal 28. The punching metal 28 can be stretched over the entire surface instead of the part as shown in the figure. Further, the tensioning method can be made detachable by an appropriate method. In this example, a non-slip 29 is also formed on the rotating frame 17.

FIG. 6 shows a state in which the rotating frame 17 is raised and viewed from the rear of the carrier, FIG. 7 shows a state in which the rotating frame 17 is extended laterally, and FIG. The state seen from the back of the carrier when the frame 17 is lowered is shown.

[0019]

As described above, the present invention has the following specific effects by the above configuration. That is, only by rotating the rotating frame, the width of the transport vehicle can be expanded or reduced to a size that can easily correspond to the size of the harvesting packing box. Further, since only the fixing screw at the operation part is used for operating the rotating frame, unlike the conventional method of closing many screws, there is no need to forget to tighten the screws. Therefore, the load box is securely fixed when placed, and the load does not drop due to rattling during transportation. In addition, it is possible to lower the rotating frame and to work while sitting on the carrier with a simple operation. In addition, you can work in a free position by placing a cargo box for harvesting, reduce fatigue and work for a long time,
It has excellent effects such as improved work efficiency.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a transport vehicle according to the present invention.

FIG. 2 is a partially exploded view showing a mounting state of a rotating frame according to the present invention.

3A is an enlarged partial view of the vicinity of a rotation frame attachment portion to a support when viewed from above, and FIGS. 3B and 3C are diagrams illustrating the shape of a slot in an operation arm. FIG.

4A is a partial perspective view illustrating a rotation direction of a rotation frame, and FIG. 4B is a schematic diagram illustrating the movement thereof.

FIG. 5 is a perspective view schematically showing another transportation vehicle according to the present invention.

FIG. 6 is a schematic view of a transport vehicle in which a rotating frame is lifted to a top dead center position as viewed from the rear.

FIG. 7 is a schematic view of a transport vehicle in which a rotating frame is lifted to an overhang position as viewed from the rear.

FIG. 8 is a schematic view of the transport vehicle with the rotating frame lowered to the bottom dead center position as viewed from the rear.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 loading frame 2 front ridge 3 center ridge 4 rear ridge 5 front support frame 6 rear connection girder 7 handle portion 8 rear wheel 9 front wheel 10 rising portion 11 front rotation frame mounting piece 12 rear rotation frame mounting piece 13 operating arm fixing piece 14 Support 15 Foot 16 Frame Bar 17 Rotating Frame 18 Shaft Hole 19 Operating Arm 20 Slot 21 Shaft Hole 22 Fixing Screw 23 End Fitting Groove 24 Center Fitting Groove 25 Top Dead Center Position 26 Overhang Position 27 Lower Dead center position 28 Punching metal 29 Non-slip 30 Finger hook 31 Inclined slot 32 Contact groove wall 33 Inclined step 34 Termination slot

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 52-110150 (JP, U) Japanese Utility Model Sho 55-23945 (JP, U) Japanese Utility Model Sho 64-14470 (JP, U) Japanese Utility Model Sho 53- 104564 (JP, U) JP-A 2-136765 (JP, U) JP-A 62-473 (JP, U) JP-A 61-55835 (JP, U) JP-B 47-29536 (JP, B1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B62B 3/00 B62B 3/02 B62B 3/10

Claims (2)

(57) [Claims] 1. A left and right carrier frame 1, a front ridge 2, a central ridge 3, and a rear ridge 4 which are provided at right angles to the left and right carrier frames 1, and rise from the front ends of the left and right carrier frames 1 in an arch shape. A front support frame 5 passed over, a left and right rear connection girder 6 rising from the rear ends of the left and right carrier frames 1, and a handle 7 connected to the left and right rear connection girder 6 and rising in an arch shape, In a transport vehicle including left and right rear wheels 8 provided at the left and right lower portions of the rear ledge 4 and left and right front wheels 9 provided at the left and right lower portions of the front ledge, a rising portion 10 of a front support frame 5 is provided.
The front rotating frame mounting piece 11 that protrudes to the left and right outside is fixed to the rising portion 10, and the rear rotating frame mounting piece 12 that protrudes to the right and left outside from the rear connecting girder 6 and the left and right inner diagonally upward and rearward. Support 1 having operating arm fixing piece 13
4 is fixed to the rear connection girder 6, and U-shaped left and right rotating frames 17 each including a front and rear foot portion 15 and a frame bar 16 bridged between the foot portions are provided at the tip of each foot portion 15. Shaft holes 1 before and after
8, the front and rear rotating frame mounting pieces 11 and 12 are rotatably supported on a shaft, the operation arm 19 is provided with a horizontally elongated slot 20, and the other end side is provided with a shaft hole 21. Rear shaft hole 18 of part 15
A shaft hole 21 on the other end side of the operation arm 19 is attached to a forward position of the rotation arm 17 so that the rotation frame 17 and the operation arm 19 can be freely rotated.
The fixing screw 22 screwed to the end of the operation arm fixing piece 13 of FIG. 4 is passed through the slot 20 of the operation arm 19 so as to be fixable, and the operation arm 19 is changed by changing the fixing position of the slot by the fixing screw 22.
Wherein the linear motion is converted into a circular motion of the rotating frame so that the rotating frame can be widened. 2. A horizontally elongated slot 20 provided in the operation arm 19 is obliquely upward inside when the operation arm 19 is horizontal at the end of the slot 20 of the operation arm 19 and at the center of the length of the slot 20. Inclined grooves for forming an end fitting groove 23 and a central fitting groove 24 projecting from the end fitting groove 23 and shifting the slot 20 obliquely upward from the end fitting groove 23 toward the central fitting groove 24. A groove wall is formed in the hole 31, and a groove wall facing the end fitting groove 23 of the groove wall of the central fitting groove 24 is formed in the contact groove wall 32 of the fixing screw 22 projecting downward, and the central fitting groove 24 is formed. Is formed in the inclined step portion 33 which is bent downward and inclined below, and the slot 20 extending from the central fitting groove 24 to the end of the one end half of the operating arm 19 is formed.
Is formed in the horizontally extending terminal slot 34, and the end fitting groove 2 is formed.
3. With the ends of the central fitting groove 24 and the terminal slot 34 fixed to the fixing screw 22, the frame bar 16 of the rotating frame 17 is lifted, the top dead center position 25, and the frame bar 16 is laterally extended. 2. The carrier according to claim 1, wherein the overhanging position and the frame bar 16 can be fixed to a lower dead center position 27 where the frame bar 16 is lowered.