JPH084385Y2 - Work carrier bed - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a bed of a work carrier that can be raised and lowered.

[0002]

2. Description of the Related Art Conventionally, for carrying large amounts of seedlings, seeds or crops, for example, Japanese Utility Model Publication No. 2-4915.
There is a moving carriage as shown in Japanese Patent No. 4 publication.

FIG. 9 shows such a moving carriage, and a prime mover 3 is provided on one side of the front and rear of a chassis 2 equipped with a traveling device 1.
A control unit 5 having an operation lever 4 is provided.
On the other side of the chassis 2, a cross-type lift device 9 having a pair of links 7 and 8 connected by a pivot shaft 6 is provided. The arrangement of the pivot shaft 6 connecting the two links 7 and 8 is such that the lengths L1 and L2 of the link 8 are in the relationship of L1> L2. As a result, as the lift device 9 is driven, the loading platform 11 having the fall prevention fence 10 moves to the control section 5 side by a distance of H, so that the front and rear balance of the mobile cart is maintained.

The lower end of the link 7 of the lift device 9 is rotatably attached to the chassis 2 via a pivot 12. The upper end of the link 7 is slidably attached to the guide rail 13 of the loading platform 11 via the rotating roller 7a attached thereto. The lower end of the link 8 is slidably attached to the guide rail 14 of the chassis 2 via a rotating roller 8a attached thereto. The upper end of the link 8 is rotatably attached to the bed 11 via a pivot shaft 15. Further, a movable shaft 17 of a hydraulic cylinder 16 is rotatably attached to the link 7.

As a result, the lift device 9 driven by the hydraulic cylinder 16 moves the loading platform 11 up and down substantially horizontally. Also, by driving the lift device 9,
Since the platform 11 is appropriately moved to the control unit 5 side, the front and rear balance is maintained in a good state, so that the mobile cart is prevented from tipping over. Further, when loading and unloading luggage from the front side of the luggage platform 11 with the luggage platform 11 raised, the center of gravity is on the control unit 5 side, so that safe loading and unloading work is performed.

[0006]

By the way, in the above-mentioned conventional mobile trolley, a fall prevention fence 9a is fixedly provided on the outer peripheral edge of the loading platform 9, whereby a large amount of seedlings loaded on the loading platform 9 are provided. It prevents falling of seeds, crops, etc. during transportation.

However, when the fall prevention fence 9a is simply fixed to the outer peripheral edge of the loading platform 9 as described above, it does not seem very inconvenient to load or unload the individually sorted objects. When loading or unloading relatively heavy and heavy objects, the fall prevention fence 9
There is a problem that a interferes with the loading and unloading.

The present invention has been made in view of the above circumstances, and provides a bed of a work carrier for loading and unloading relatively heavy and heavy objects. The purpose is to do.

[0009]

In order to achieve the above-mentioned object, the present invention comprises a flat base plate and front and side panels attached to the front and left and right side surfaces of the base plate. In a carrier of a carrier, panel mounting holes are formed in front and left and right side surfaces of the base plate, stopper pieces are provided on upper surfaces of the front panel and side panels, and the panel mounting holes are provided on inner surfaces thereof. A panel pin that is insertable into and removable from the hole is provided, and when the front panel and the side panel are attached to the base plate, the stopper piece is in a state of standing upright with respect to the surface of the base plate, When the front panel and the side panel are mounted upside down on the base plate, the lower surfaces of the front panel and the side panel are attached to the base plate. It characterized in that flush with the surface of the scan plate.

[0010]

In the carrier of the work carrier of the present invention, the front panel and the side panels are detachably provided on the front and left and right sides of the carrier, and the stoppers are provided when the front panel and the side panels are attached to the base plate. When the front panel and the side panel are mounted upside down on the base plate with the piece standing upright against the surface of the base plate, the lower surfaces of the front panel and the side panel are flush with the surface of the base plate. Becomes In addition, when transporting by loading containers configured according to the shape of the platform,
It is possible to prevent rattling of the container.

Therefore, when loading or unloading luggage on the loading platform, the front panel or the side panel on the loading or unloading side is mounted upside down on the base plate so that the lower surface of the front panel or the side panel is the base. Since it is flush with the surface of the board, loading and unloading of luggage is easy.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show a work carrier according to an embodiment of a carrier for a work carrier of the present invention, in which a pair of running parts 50 are provided on both sides of a lower portion of a frame part 30. . In front of the frame portion 30, a loading platform 7 described later is provided.
An elevating part 70 is provided for moving the 4 up and down in a substantially horizontal state. An engine unit 40 and an operation unit 60 are provided behind the frame unit 30. The operation unit 60 is provided in a state of being deviated to one side from the center line A of the frame unit 30.

The details of each component are as follows. The frame portion 30 is provided with support frames 31 and 32, which are arranged to face each other in parallel. Each support frame 3
Support shafts 31a to 31c,
32a to 32c are attached in a horizontal direction and in directions opposite to each other.

Support members 33 and 34 are arranged in parallel and opposed to each other on the upper end surfaces of the support frames 31 and 32, respectively, and the tip ends of the support members 33 and 34 are mounted so as to be inclined rearward. One end portion 72a of each link 72, which will be described later, is provided in the middle of the upper end surface of each support frame 31, 32.
A guide rail 37 having a guide groove 37a for slidably holding the side is attached. The guide groove 37a of the guide rail 37 has a U-shaped cross section, and the longitudinal opening of the guide rail 37 is directed inward. Both ends of each guide rail 37 are open, and mud or the like is pushed out from the opened both ends as described later.

At the front end of each support frame 31, 32,
A support loop member 39 having a support portion 38 for rotatably supporting one end portion 73a of a link 73, which will be described later, is attached. The engine body 41 of the engine unit 40 is mounted on the underframe 35. A battery 42 is arranged on one side of the engine body 41. Engine body 4
On the other side of 1, an oil pump 44 connected via a drive shaft 43 is arranged. To the oil pump 44, the pulley 4 inside the transmission 46 is inserted through the belt 45a inside the belt case 45 attached to the transmission pulley 44a.
6a are connected.

Here, the weights of the engine section 40 and the operating section 60 mounted on the underframe 35 are supported in a well-balanced manner by the support members 33 and 34 which are mounted in a substantially upright state, and these weights are supported by the support frame 31. , 32. The support frames 31 and 32 receive the load of the luggage loaded on the loading platform 74, and the left and right support frames 31 and 32 are twisted by the support members 33 and 34 and the underframe 35 during traveling.

The transmission 46 has a transmission gear 46b.
A drive sprocket 51 of the traveling unit 50 is connected via a chain 47. In front of the drive sprocket 51, an idle wheel 52 is arranged at substantially the same height as the drive sprocket 51. Below each drive sprocket 51 and idler wheel 52, support shafts 31a to 31c (32a to 32c) provided on the side surface of the support frame 31 (32).
Supporting wheels 52A to 52C rotatably attached to the wheel are arranged. An endless transmission belt 53 is attached to each drive sprocket 51, idler wheel 52, and support roller wheels 52A to 52C.

The supporting rollers 52A and 52C are arranged with respect to the driving sprocket 51 and the idler wheel 52 such that the supporting rollers 52A and 52C are inside the driving sprocket 51 and the idler wheel 52, respectively. This allows
Since the endless transmission belts 53 between the drive sprocket 51 and the support roller 52A and between the idler wheel 52 and the idler wheel 52C are inclined inward, respectively, even if the field is uneven, it is not only forward. Backward travel is smooth.

The operation section 60 is provided with a handle frame 61 attached to the underframe 35. An operation box 62 is attached to the end of the handle frame 61. The operation box 62 has a T-shaped guide groove 6
3 is formed, and the operation lever 64 can be slid along the guide groove 63. A loop handle 65 is attached to the operation box 62 in a horizontal state. Incidentally, reference numeral 66 in the figure denotes a hydraulic operating lever.

As shown in FIG. 5, the elevating part 70 is provided with two sets of links 72 and 73 rotatably attached to both ends of a shaft 71. Here, the link 72 has a tubular plate shape, whereas the link 73 has a flat plate shape. Since the link 72 has a tubular plate shape as described above, the link 72 can have a considerable rigidity. Therefore, in addition to reducing the width dimension of the link 72, the width of the flat plate-like link 73 to be paired with the link 72 is reduced. The size can be reduced, and the size in the lateral direction of the machine body can be reduced. As a result, the height of the elevating part 70 in the lowered state can be reduced, and the gap between the left and right links can be maximized.

A pin 7 is attached to one end 72a of each link 72.
2c is attached. The pin 72c has an insertion hole 72
A slide member 72e having a U-shaped cross section is attached via d. A rotating roller 72g is rotatably attached to the pin 72c through an insertion hole 72f.

When the slide member 72e and the rotary roller 72g are attached to the pin 72c,
The rotary roller 72g is housed in the recess of the slide member 72e. Further, when the slide member 72e is housed in the guide rail 37,
The upper, lower, left and right sides of the rotating roller 72g are surrounded by the guide rail 37 and the slide member 72e.

A bolt insertion hole 72h is formed at the other end 72b of each link 72. The other ends 72b of the links 72 are rotatably attached to the side surface of the base plate 75 of the loading platform 74 via bolts (not shown). A bolt insertion hole 73h is formed at one end 73a of each link 73. One ends 73a of the links 73 are rotatably attached to the support portions 38 of the support loop members 39 provided at the front ends of the support frames 31 and 32 via bolts (not shown). ing.

At the other end 73b of each link 73, there is a pin 7
3c is attached. The pin 73c has an insertion hole 73
The slide member 73e and the rotating roller 73g are attached via d and 73f. When the slide member 73e and the rotating roller 73g are attached to the pin 73c, the rotating roller 7 is the same as above.
3 g is accommodated in the recess of the slide member 73e. Also, the slide member 73e is used for the loading platform 7 described later
In the state of being housed in the slide groove 75a of the base plate 75 of No. 4, the upper, lower, left and right sides of the rotating roller 73g are surrounded by the slide groove 75a and the slide member 73e in the same manner as described above.

A cylinder body 77 of a hydraulic cylinder 77 is attached to a mounting member 76 provided at the center of the shaft 71.
It is attached so that b is rotatable. The movable shaft 77 a of the hydraulic cylinder 77 is attached to the back surface of the base plate 75 of the loading platform 74. As a result, the hydraulic cylinder 7
When 7 is driven, the movable shaft 77a pushes up the back surface of the base plate 75.

The loading platform 74 is constructed as shown in FIGS. That is, the guard bar 75d is fixed to the rear edge of the base plate 75 of the loading platform 74. Base plate 75
Panel mounting holes 76 and 77 are provided on the front and left and right side surfaces of the. In the panel mounting hole 76, the panel pin 7 provided on the panel body 78 a of the front panel 78 is attached.
8b is detachably attached.

A side panel 79 is provided in the panel mounting hole 77.
The panel pin 79b provided on the panel body 79a is detachably attached. The panel bodies 78a, 79a are provided on top of the panel bodies 78a, 79a.
Stopper pieces 78c, 79c thinner than a are provided. Panel bodies 78a, 79a and stopper pieces 78c,
Stepped portions 78d and 79d are formed between the stepped portions 79d and 79c.

Then, as shown in FIG. 7, when the front panel 78 and the side panel 79 are attached to the base plate 75, the step portions 78d and 79d are flush with the surface of the base plate 75. At this time, since the stopper pieces 78c, 79c are in a state of standing upright with respect to the surface of the base plate 75, the stopper pieces 78c, 79c prevent the crops or the like loaded on the loading platform 74 from falling. .

On the other hand, as shown in FIG. 8, when the front panel 78 and the side panel 79 are reversely attached to the base plate 75, the lower surface of each panel body 78a, 79a is flush with the surface of the base plate 75. Becomes Therefore, by mounting the front panel 78 or the side panel 79 on the side to be loaded or unloaded on the loading platform 74 in reverse to the base plate 75, loading or unloading of luggage can be facilitated.

For the panel pins 78b, 79b of the front panel 78 or the side panel 79 after being inserted into the base plate 75, for example, screws are inserted from the lower surface side of the base plate 75 to attach the panel mounting holes 76, The panel pins 78b and 79b may be pressed against the 77. In this case, the front panel 78 and the side panel 79 can be more reliably prevented from coming off.

The work vehicle having such a structure is used as follows. First, after the engine main body 41 of the engine unit 40 is driven, the operating lever 64 is pushed up along the T-shaped guide groove 63 to the end of this guide groove 63, and the driving force drives the transmission 46 and the chain case 47. It is transmitted to the drive wheels 51 on the side of the traveling unit 50 via. When the drive wheel 51 that receives the driving force rotates, this rotational force is transmitted to the endless transmission band 53, whereby the endless transmission band 53 rotates. At this time, since the idler wheels 52, 52A to 52C arranged inside the endless transmission belt 53 also rotate in the same direction at the same time, the endless transmission belt 53 rotates smoothly and the work carrier advances. .

Then, for example, a ridge 80 as shown in FIG.
In the case of performing work in a state of straddling over the ridges, each traveling unit 50 is positioned in the ridge, and the work transport vehicle is advanced in this state. At this time, since there is no reinforcing member such as a cross member horizontally laid between the supporting frames 31 and 32 arranged in parallel to each other in the frame portion 30, the ground and the base plate of the loading platform 74 are provided. The space between the ridges 75 and 75 is vacant, and smooth running is possible without damaging the crops or the like of the ridges 80.

At this time, the operation unit 60 is replaced by the frame unit 3.
Since it is provided in a state of being deviated to one side from the center line A of 0 (see FIG. 3), the worker can walk the ridges and operate the work vehicle, which makes it impossible to operate. Never be. When turning the work vehicle to the right or left while traveling, set the operation lever 64 to the T-shaped guide groove 63.
Push it further to the right or left from the end of the. This allows
The traveling unit 50 corresponding to the pushed side of the operation lever 64
The driving force is cut off and only the traveling unit 50 on the opposite side is driven, so that the work vehicle turns right or left.

On the other hand, a work vehicle having such a construction, such as a orchard or a vineyard, is used for harvesting crops at a height higher than the height, spraying insect repellents, and trucks (light vehicles). When loading and unloading seedlings, harvested products, and the like with the loading platform, it becomes easy to stand up on the raised loading platform 74 or work between loading platforms of the same height. That is, when raising the platform 74, the hydraulic operation lever 66 is pushed in from the state shown in FIG. As a result, the driving force of the engine body 41 is transmitted to the oil pump 44 side. By driving the oil pump 44, the movable shaft 77a is pushed out from the cylinder body 77b of the hydraulic cylinder 77.

The pushing force of the movable shaft 77a from the cylinder body 77b acts as a pushing force to the base plate 75 of the loading platform 74. In addition, the base plate 75 of the loading platform 74 of the movable shaft 77a
The reaction force against the pushing force to the shaft 71 of the elevating part 70 is
Conveyed to. Thereby, each link 72 of the elevating part 70
One end portion 72a of the guide rail 37 is a guide groove 37a of the guide rail 37.
It slides inside and moves to the side of arrow a (see FIG. 1). Link 7
The other end 73b of No. 3 slides in a slide groove 75a provided on the side surface of the base plate 75 of the loading platform 74 and moves to the arrow a side. The other end 72b of each link 72 and the link 7
One end 73a of the base plate 75 is a base plate 75 of the loading platform 74.
Of the support loop member 39 provided at the attachment positions of the side faces of the support frame and the front ends of the support frames 31 and 32.
Rotate around as a fulcrum.

In this way, the link 7 of the elevating part 70 is
The one end 72a of the link 72 and the other end 73b of the link 73 are respectively guided by the guide grooves 37a of the guide rail 37 in accordance with the rotational movement of the other end 72b and the one end 73a of the second and third 73.
Also, the links 72, 73 gradually stand up as they slide in the slide groove 75a and move in the direction of the arrow a, and raise the loading platform 74 in a state where it is kept substantially horizontal. And link 72
When the one end portion 72a and the other end portion 73b of the link 73 move to the ends of the guide groove 37a and the slide groove 75a, respectively, the lifting operation of the loading platform 74 is stopped.

On the other hand, when lowering the loading platform 74 to the fixed position, the hydraulic operation lever 66 in the pushed state is returned to the state shown in FIG. As a result, the above-described operation is performed in reverse, and the other ends 7 of the links 72, 73 of the elevating part 70.
2b and the one end portion 73a are rotated, the one end portion 72a of the link 72 and the other end portion 73b of the link 73 are guided by the guide groove 37a and the slide groove 75 of the guide rail 37, respectively.
When it slides in a, moves in the direction of arrow b, and moves to the end of each guide groove 37a and slide groove 75a, the lowering operation of the platform 74 is stopped.

At this time, the slide members 72e, 73e attached to one end portion 72a of each link 72 and the other end portion 73b of each link 73 have guide grooves 37a of the guide rail 37 and a slide groove 75a of the base plate 75 side. When sliding inside, the mud and the like adhering to these guide grooves 37a and slide grooves 75a are scraped out. As a result, the gaps in the guide groove 37a and the slide groove 75a with respect to the rotating rollers 72g and 73g are appropriately maintained, so that the rotating rollers 72g and 73g rotate smoothly.

When the slide members 72e and 73e are housed in the guide groove 37a and the slide groove 75a, the upper, lower, left and right sides of the rotating roller 72g are guided by the guide groove 37.
Since it is surrounded by the inner wall of a and the slide member 72e, and the upper, lower, left, and right sides of the rotating roller 73g are surrounded by the inner wall of the slide groove 75a and the slide member 73e, adhesion of mud and the like to the inside of each slide member 72e, 73e is prevented. It

The front panel 78 and the side panel 79 are used in the following manner when loading or unloading a load on the loading platform 74. First, the front panel 7 on the side for loading or unloading luggage
8 or the panel pins 78b and 79b of the side panel 79 are pulled out from the panel mounting holes 76 and 77, and the front panel 78 or the side panel 79 is removed from the base plate 75. Front panel 78 or side panel 7 removed
The panel pins 78b and 79b are inserted into the panel mounting holes 76 and 77 with the vertical direction of 9 reversed. At this time, as shown in FIG. 8, since the lower surfaces of the panel bodies 78a and 79a are flush with the surface of the base plate 75, it is easy to load or unload loads on the loading platform 74.

After the loading or unloading of the luggage on the loading platform 74 is completed, the panel pins 78b, 79b of the front panel 78 or the side panel 79 on the side on which the luggage is loaded or unloaded are set in the panel mounting holes 76, Then, the front panel 78 or the side panel 79 is removed from the base plate 75. The top and bottom of the removed front panel 78 or side panel 79 are reversed, and the panel pins 78b and 79b are inserted into the panel mounting holes 76 and 77.

At this time, as shown in FIG. 7, since the stopper pieces 78c and 79c are upright with respect to the surface of the base plate 75, the crops and the like loaded on the bed 74 by the stopper pieces 78c and 79c. The storage box etc. will be prevented from falling. When carrying a heavy object such as a container, the front panel 78 or the side panel 79 on the side for loading or unloading luggage is removed from the base plate 75 in the same manner as above, and then turned upside down. Attach to 75. Thereby, the panel bodies 78a, 79
Since the lower surface of a is flush with the surface of the base plate 75, it is easy to load heavy objects such as containers.

Further, when the heavy goods such as the container are transferred from the front of the cargo bed 74 while the cargo bed 74 is raised to the height of the cargo bed of the light truck, when the side panel 79 slides the container or the like. Since it also serves as a guide, it can be easily transferred.

After the loading onto the loading platform 74 is completed, the front panel 78 or the side panel 79, which is turned upside down, is returned to the original state and attached to the base plate 75 again. At this time, the outer peripheral edge of the lower surface of the container is attached to the panel bodies 78a and 79a shown in FIG.
7 formed between the stopper piece 78c and the stopper piece 78c
By adjusting the shape of 8d and 79d, it is possible to prevent rattling of the container during transportation,
It is possible to safely and reliably carry heavy objects such as containers.

As described above, in this embodiment, the panel mounting holes 76 and 77 are provided on the front and left and right side surfaces of the loading platform 74, and the panel body 78a of the front panel 78 is provided for the panel mounting hole 76. The panel pin 78b can be inserted and removed, and the panel pin 79b provided on the panel body 79a of the side panel 79 can be inserted and removed into and from the panel mounting hole 77.

When the front panel 78 and the side panel 79 are attached to the base plate 75, the stopper piece 78
When c and 79c are erected with respect to the surface of the base plate 75 and the front panel 78 and the side panel 79 are mounted upside down on the base plate 75, the lower surface of each panel body 78a, 79a is It was made flush with the surface of the base plate 75.

Therefore, when the front panel 78 and the side panel 79 are mounted upside down with respect to the base plate 75, the lower surfaces of the respective panel bodies 78a and 79a and the base plate 7 are attached.
Since the surface of 5 is made flat, it becomes easy to load or unload heavy objects such as containers. Further, the front panel 78 and the side panel 79 are connected to the base plate 75.
When properly installed against each stopper piece 78
With c and 79c, it is possible to reliably prevent falling of heavy objects such as containers and crops loaded on the loading platform 74.

[0048]

As described above, according to the loading platform of the working vehicle of the present invention, when loading or unloading luggage on the loading platform, the front panel or the side panel on the loading or unloading side is used as a base. By mounting them upside down on the board, the lower surface of these front panels or side panels will be flush with the surface of the base board, making it easy to load and unload cargo, so it is relatively bulky and heavy. You can easily load and unload items.

[Brief description of drawings]

FIG. 1 is a side view showing a work carrier according to an embodiment of a work carrier bed of the present invention.

2 is a front view showing the work vehicle of FIG. 1. FIG.

3 is a plan view showing the work vehicle of FIG. 1. FIG.

FIG. 4 is an enlarged perspective view showing a frame portion of FIG.

FIG. 5 is a perspective view showing a link structure of the elevating part of FIG.

FIG. 6 is a diagram showing a configuration of the luggage carrier of FIG. 1.

7 is a cross-sectional view showing a state in which a front panel or a side panel is attached to the base plate of the luggage carrier of FIG.

8 is a cross-sectional view showing a state in which a front panel or a side panel is mounted upside down on the base plate of the luggage carrier of FIG.

FIG. 9 is a side view showing an example of a conventional moving carriage.

[Explanation of symbols]

 30 frame part 31, 32 support frame 33, 34 support member 35 underframe 37 guide rail 37a guide groove 40 engine part 41 engine body 44 oil pump 46 mission 50 running part 51 drive sprocket 52 idler wheel 53 endless power transmission belt 60 operating part 61 Handle frame 62 Operation box 64 Operation lever 65 Loop handle 66 Hydraulic operation lever 70 Elevating part 71 Shaft 72, 73 Link 74 Loading platform 75 Base plate 75a Sliding groove 77 Hydraulic cylinder 78 Front panel 79 Side panel

Claims (1)

[Scope of utility model registration request] 1. A loading platform of a work vehicle comprising a flat base plate and front and side panels attached to the front and left and right side faces of the base plate. A panel mounting hole is formed in the front panel, a stopper piece is provided on the upper surfaces of the front panel and the side panel, and a panel pin that is insertable into and removable from the panel mounting hole is provided on an inner surface of the stopper piece. When the front panel and the side panel are attached to the base plate, the stopper pieces stand upright with respect to the surface of the base plate, and the front panel and the side panel are attached to the base plate upside down. The lower surfaces of the front panel and side panel are flush with the surface of the base plate. Car carrier.