JP2001354142A - Moving carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carriage for securing a work space in a high position and traveling on a row in a field while positioning an operator in the high position. SOLUTION: This moving carriage 1 is constituted in such a way that front wheels 30 are arranged on the front side of a machine base frame 5, rear wheels 7 are arranged on the rear side, a lower frame 9 is erected on the machine base frame 5, an upper frame 21 is detachably connected to the lower frame 9 so that the vertical height can be adjusted, an upper step 18 is arranged on the upper frame 21, a steering shaft composed of an upper steering shaft 26 and a lower steering shaft 28 is rotatably supported in the vertical direction in a front part of the machine base frame, a front wheel shaft 31 for supporting the front wheels 30 is fixed to the lower end, an upper operation handle 25 is arranged on the upper end, a lower operation handle 27 is arranged in a midway part, the rear wheels 7 are constituted so as to be drivable by a motor 12, a battery 17 is placed on the front end on the machine base frame 5, and a direction changing handle 10 is arranged on the rear end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile trolley for use in pruning, harvesting, picking buds, pollinating, etc., in a greenhouse.

[0002]

2. Description of the Related Art Conventionally, when crops in a greenhouse are pruned, harvested, picked, and pollinated, it is necessary to work at a high position that is difficult to reach by workers. I was working on it.

[0003]

As described above, it is difficult for an operator to perform work at a high position using a ladder or a stepladder.
Each time you change your position, you get down from the ladder or stepladder and move up again, which is inefficient. Therefore, it is desirable to use a bogie that can secure a working space at a high position and allows an operator to travel in a furrow while being at the high position. This makes it possible to move by itself and change the work position where the worker stands, and the work space at the work position allows the worker to lean on the left and right, and at the same time place the articles necessary for the work. It is intended to construct and realize a truck having a width enough to allow the above. In other words, it is not a trolley specialized for a specific task but a versatile trolley capable of dealing with various tasks.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in claim 1, the drive wheels are arranged on one side of the front and rear of the machine frame, the steering wheels are arranged on the other side, the lower frame is erected on the machine frame, and the upper frame is mounted on the lower frame. A frame is attached and detached and connected so as to be vertically adjustable, and an upper step is arranged on the upper frame.

According to a second aspect of the present invention, a steering shaft is vertically rotatably supported at a front portion of the machine frame, and a steering wheel shaft for supporting a steering wheel is fixed to a lower end of the steering shaft. And an operation handle arranged in the middle.

According to a third aspect of the present invention, the driving wheel is configured to be driven by a motor, and a battery for driving the motor is mounted on one of front and rear ends on a machine frame, and a direction changing handle is disposed on the other end. Things.

According to a fourth aspect, the machine frame is provided with an outrigger.

[0008]

Next, embodiments of the present invention will be described.
1 is a side view of the movable trolley, FIG. 2 is a front view of the movable trolley, FIG. 3 is a plan view of the movable trolley, and FIG. 4 is a side view of the movable trolley at a lower position of the working unit. FIG. 5 is a plan view of the mobile trolley taken along the line AA in FIG.
FIG. 7 is a side view of a movable carriage provided with outriggers, and FIG. 7 is a partial side sectional view showing a state of rotation of the outriggers.
FIG. 8 is a view showing the outrigger body.

As shown in FIGS. 1 to 3, the mobile trolley 1 includes a lower traveling section 2, an upper working section 3, and a front steering section 4.
It is composed of

First, the traveling section 2 will be described. In addition, let the left side in FIG. 1 be front. Bearings 6 are fixedly provided at the left and right ends of the front and rear one (rear) lower ends of the machine frame 5 (FIG. 3), and the bearings 6 support the rear wheel axle 8. The rear wheels 7, 7 are fixedly mounted on both ends of the rear wheel 8.
On the top of the machine frame 5, four lower frames 9.9
Are erected at the apexes of the quadrilateral in plan view at the front, and support a working unit 3 described later on the upper part of the lower frames 9,. Machine frame 5 One end before and after (rear)
A turning handle 10 is erected on the upper surface toward the rear upper side, and a vertically changing portion between the lower frame 9.9 erected on the rear side and the turning handle 10 is provided. The use step 11 is provided horizontally. The direction changing handle 10 is formed in a U-shape as viewed from the rear.

A battery 17 is mounted on the upper surface of the other end (front part) of the machine frame 5 and the center of gravity of the movable carriage 1 is located forward of the center of the machine body. For this reason, by arranging it on the opposite side to the direction change handle 10, it is located at the farthest point in the horizontal direction from the position of the center of gravity of the movable trolley 1, as compared with the case where the position of the center of gravity is at the center or the rear side. Thus, when the operator changes direction, the turning handle 10 can be easily lifted,
The direction of the mobile trolley 1 can be changed in a state where the rear side is lifted with the front steering wheel as a fulcrum.

A motor 12 for driving the vehicle is mounted on the rear upper surface of the machine frame 5. The electric power is supplied from the battery 17 so that the motor 12 is driven and rotated. It is protruded toward. A sprocket 14 is fixed to the left end of the output shaft. A sprocket 15 is fixed to a portion of the rear wheel shaft 8 which is closer to the left from the center. A chain 16 is wound between the sprockets 14 The rear wheels 7, 7 serving as driving wheels can be driven by the driving force from the vehicle.

Next, the working unit 3 will be described. An upper step 18 is provided above the lower frames 9, 9.
Is provided, and a front frame 19 is erected at the front end of the upper surface of the upper step 18. The front frame 19 is formed in an inverted U-shape when viewed from the front, and substantially inverted L-shaped side frames 20 are erected in the front-rear direction on both left and right sides of the upper surface of the upper step 18. The front end of 20 is fixed to the front frame 19, and the rear lower end is fixed to the middle of the upper step 18.

The upper step 18 is formed in a rectangular shape in a plan view, and four upper frames 21.
.. Are vertically aligned with the positions of the lower frames 9. 9. The upper frame 21 has an L-shaped cross section, and the lower frame 9.・
-Also, the cross-sectional shape is L-shaped to match the shape. Then, in plan view, the four upper frames 21 have the four lower frames 9 disposed inside, and the outer surface of the lower frame 9 and the inner surface of the upper frame 21 are in contact with each other. It can be attached and detached, and the vertical position can be adjusted.

That is, the lower frame 9 is provided with a plurality of bolt holes 22 at predetermined intervals in the vertical direction (two in the present embodiment). Further, a bolt hole for inserting a bolt is also formed at a lower end portion of the upper frame 21 in accordance with a distance between the bolt holes 22. By fixing the bolt holes of the lower frame 9 and the upper frame 21 and fixing them with the bolts 23 in this manner, the vertical height can be adjusted. FIGS. 1 to 3 show a state in which the working unit 3 is fixed at a high-altitude position. At this time, the movable trolley 1 is inserted into the bolt holes of the upper frame 21 and the bolt holes 22 on the upper end side of the lower frame 9.
The bolts 23 are inserted from the outside and fastened by the nuts 24 from the inside of the movable carriage 1 to fix the upper frame 21 and the lower frame 9 together.

In this embodiment, there are two fixing positions of the working unit 3, the above-mentioned high position and the low position. When the working unit 3 is fixed at the low position, FIG. The state is as shown. At this time, the bolt holes of the upper frame 21 and the bolt holes 22 on the middle side of the lower frame 9 are fastened and fixed by the bolts 23 and the nuts 24. However, the lower frame 9 and the upper frame 21 are not limited to L-shapes, but may be formed in a pipe shape. It is also possible to use pins instead of bolts. Further, the numbers of the lower frame 9 and the upper frame 21 are not limited.

Next, the steering section 4 will be described. As shown in FIGS. 1 to 3, a shaft support 32 is provided upright at the center of the front end of the machine frame 5, and the bracket 32 horizontally extends brackets 32 a and 32 b toward the front at two upper and lower locations. The bracket 32a, 32b has an insertion opening at the left and right center thereof, and the lower steering shaft 28 is inserted into the insertion opening to rotatably support. The lower steering shaft 28 locks the annular members 33. The annular members 33 are located on the lower surface of the bracket 32a and the upper surface of the bracket 32b, respectively. Has been prevented. The left and right central portions of a front wheel shaft 31 are fixed to the lower end of the lower steering shaft 28, and front wheels 30 serving as steering wheels are rotatably supported at both ends of the front wheel shaft 31.

The lower steering shaft 28 is formed in a cylindrical shape, and the upper steering shaft 2
6 has been inserted. The diameter of the lower steering shaft 28 is smaller than the diameter of the upper steering shaft 26 so as to be slidable. Lower steering shaft 28
The bolt holes 29 for bolt insertion are formed at a plurality of upper and lower positions in accordance with the positions of the bolt holes of the lower frame 9 (two positions in this embodiment). Further, a bolt hole for inserting a bolt is formed in the lower portion of the upper steering shaft 26 in accordance with the position of the bolt hole 29.
1 to 3, the bolt 23 is inserted into the bolt hole of the upper steering shaft 26 and the bolt hole 29 at the upper end of the lower steering shaft 28.
And the upper steering shaft 26 and the lower steering shaft 28 are fixed by fastening with a nut 24. In the lower position shown in FIG. 4, the bolt 2 is inserted into the bolt hole of the upper steering shaft 26 and the bolt hole 29 of the lower steering shaft 28 in the middle.
3 are inserted and both are fixed.

A lower operating handle 27 is fixed to the middle of the upper steering shaft 26 by bolts. In addition, the left and right centers of the upper operation handle 25 are fixed to the upper end of the upper steering shaft 26. Further, a shaft support portion 34 is fixedly provided at the upper end of the front frame 19 of the working portion 3, and the front portion of the shaft support portion 34 is formed of a cylindrical member 34 a, and the cylindrical member 34 a supports the upper steering shaft 26. ing.

With the above structure, the front wheel shaft 31 can be rotated by the turning operation of the upper operating handle 25 or the lower operating handle 27 to correct the direction of the movable carriage 1. Therefore, when the worker stands on the ground and intends to move the movable trolley 1, the operator operates the lower operation handle 27 to perform the steering operation. Also, upper step 1
A switch box 35 is provided at the left front end of the lower surface 8. The switch box 35 is provided with switches for operating forward, reverse, and stop. By operating these switches, the motor 12 can be rotated forward and backward and stopped, and the movable carriage 1 can be moved and stopped. When the operator stands on the upper step 18 to move the mobile trolley 1, the operator operates the upper operation handle 25 to perform a steering operation. A foot switch 36 is provided at the left front end of the upper surface of the upper step 18, and by operating the foot switch 36,
The same operation as that of the switch box 35 can be performed.

As shown in FIG. 5, the possible range of the cutting angle of the front wheel shaft 31 by the upper operation handle 25 or the lower operation handle 27 is limited by the machine frame 5. Here, the range of the cutting angle θ in the present embodiment is about 10 degrees. By limiting the range of the cutting angle θ to about 10 degrees, the lateral stability of the movable vehicle 1 in the left-right direction is maintained to prevent rollover, and the movable vehicle 1 having no differential mechanism generates excessive traveling horsepower during turning. They try not to eat. When moving without using the motor, the user can easily move by grasping the upper operation handle 25 or the lower operation handle 27 and lifting the rear end.

As described above, two upper and lower fixed positions exist between the upper frame 21 and the lower frame 9 and between the upper steering shaft 26 and the lower steering shaft 28. And the upper frame 21
The lower frame 9 constitutes a column for supporting the upper step 18, and the upper steering shaft 26 and the lower steering shaft 28 constitute a steering shaft for steering. It has become. Since the strut and the steering shaft have a two-part configuration, the selection of the high-side position shown in FIGS. 1 to 3 and the low-side position shown in FIG. Can be performed only by releasing the bolt connection. Therefore, not only can the height of the upper step 18 be changed as necessary for the work, but also the mobile trolley 1 can be divided into two parts and miniaturized for easy packing. Also,
It can be placed in a small baking oven during painting.

Next, a description will be given of a movable truck having an outrigger according to a second embodiment. In the second embodiment, as shown in FIG. 6, a movable carriage 40 is provided by providing the movable carriage 1 with outriggers 41,. Four outriggers 41 are provided on the front, rear, left and right of the movable carriage 40, and all of them are attached to the machine frame 5.

As shown in FIG. 7 and FIG.
Is composed of an outrigger body 42, a disk member 43 that comes into contact with the ground, and the like. The distal end of the outrigger body 42 is rotatably supported by brackets 44, 44 erected from the center of the disk member 43 by pins 45. The body side end of the outrigger body 42 is rotatably supported by brackets 46 erected on the machine frame 5.

As shown in FIG. 8, the outrigger body 42 is provided with a hole through which the pin 45 is inserted at the tip, and a circular perforated hole 47 is provided at an end of the machine body. 47
Are provided with notches 47a and 47b at appropriate intervals on the outer periphery of the. As shown in FIG. 7, a support shaft 48 is provided laterally on the bracket 46, and the outrigger body 42 is configured to be rotatable around the support shaft 48.

A stay is fixed to the support shaft 48 and the notch 4
7a and 47b can be engaged with the notch 47a.
When the outrigger body 42 is rotated to a position where the drilling direction of 47b is parallel to the support shaft 48, the outrigger body 42 can slide along the support shaft 48.
When the outrigger body 42 is slid along the notch 47a with respect to the support shaft 48, the outrigger 41 is fixed to the movable carriage 1, and when the outrigger body 42 is slid along the notch 47b, the outrigger 41 is slid. In the stored state. However, it is also possible to adopt a configuration in which the outrigger body 42 is locked while being rotated upward, and the configuration for maintaining the outrigger body 42 in the housed / extended state is not limited.

With the above configuration, when the work is performed at the fixed position, the state is shifted to the fixed state by the outrigger 41, the stability is improved, and the movable carriage 1 can be prevented from rolling over.

[0028]

According to the first aspect of the present invention, drive wheels are arranged on one of the front and rear sides of the machine frame, steering wheels are arranged on the other side, and a lower frame is erected on the machine frame. Since the upper frame is attached to and detached from the lower frame, and connected vertically adjustable, and the upper step is arranged on the upper frame,
The height of the upper step 18 can be changed as necessary for the work. In addition, it can be placed in a small baking furnace at the time of painting to perform painting work. Further, even when transporting the mobile trolley, the size of one package can be reduced by the two divisions.

According to a second aspect of the present invention, a steering shaft is supported at a front portion of the machine frame so as to be rotatable in a vertical direction, and a steering wheel shaft supporting a steering wheel is fixed at a lower end of the steering shaft. Since the operation handles are arranged at the upper end and the middle, the work efficiency is improved.

According to a third aspect of the present invention, the driving wheels are configured to be drivable by a motor, a battery for driving the motor is mounted on one of front and rear ends on a machine frame, and a turning handle is disposed on the other end. Therefore, the operator can easily lift the direction change handle as compared with the case where the center of gravity is located at the center or the rear side, and the direction of the movable cart can be easily changed.

According to a fourth aspect of the present invention, since the machine frame is provided with an outrigger, when working at a fixed position,
By shifting to the fixed state by the outrigger, it is possible to prevent the movable cart from rolling over.

[Brief description of the drawings]

FIG. 1 is a side view of a movable cart.

FIG. 2 is a front view of the movable cart.

FIG. 3 is a plan view of the movable cart.

FIG. 4 is a side view of the movable trolley at a low position side of the working unit.

FIG. 5 is a plan view of the movable trolley in the AA section of FIG. 1;

FIG. 6 is a side view of a movable carriage provided with outriggers.

FIG. 7 is a partial side sectional view showing a state of rotation of the outrigger.

FIG. 8 is a diagram showing an outrigger body.

DESCRIPTION OF SYMBOLS 1, 40 Moving trolley 5 Machine frame 7 Rear wheel 9 Lower frame 10 Handle for turning 12 Motor 17 Battery 18 Upper step 21 Upper frame 25 Upper operating handle 26 Upper steering shaft 27 Lower operating handle 28 Lower steering Shaft 30 Front wheel 41 Outrigger θ Cutting angle

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B62B 3/02 B62B 5/04 C5 / 04 B62D 1/02 B62D 1/02 7/04 7/04 B62B 3/00 GEF term (reference) 2B029 GA06 2B041 AA02 AA08 AA13 AA17 AB05 AC17 BA02 BA08 3D026 EA06 EA14 EA49 EA84 3D030 DB91 DC03 DD65 3D050 AA01 AA12 AA14 BB02 CC04 DD01 EE08 EK15 KK04 JJ04 KK14

Claims (4)

[Claims] 1. A drive wheel is arranged on one side of a machine frame, a steering wheel is arranged on the other side, a lower frame is erected on the machine frame, and an upper frame is attached to and detached from the lower frame. A mobile trolley, wherein the mobile trolley is connected so that the vertical height can be adjusted, and an upper step is disposed on the upper frame. 2. A steering shaft is rotatably supported in a vertical direction at a front portion of the machine frame, and a steering wheel shaft supporting a steering wheel is fixed to a lower end of the steering shaft. The mobile trolley according to claim 1, wherein an operation handle is disposed. 3. The driving wheel is configured to be driven by a motor, a battery for driving the motor is mounted on one of front and rear ends on a machine frame, and a direction change handle is disposed on the other end. The mobile trolley according to claim 1 or 2, wherein 4. The mobile trolley according to claim 1, wherein an outrigger is provided on the gantry frame.