Working machine and umbrella holder for working machine

Abstract

To reduce the workload on an operator in a working machine.SOLUTION: The working machine includes a machine body 100 and a protective member holder 40 that holds a protective member 101 for protecting an operator from above.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a work machine and an umbrella holder for a work machine. [Background technology]

[0002] A known example of a walk-behind rice transplanter is the one disclosed in Patent Document 1. With a walk-behind rice transplanter, an operator holds a handle provided at the rear of the machine and operates the walk-behind rice transplanter while walking, thereby planting seedlings in a field. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-112879 Summary of the Invention [Problem to be solved by the invention]

[0004] With the walk-behind rice transplanter described above, there is nothing to block sunlight or rain, which can be a burden to the operator.

[0005] The present invention aims to reduce the burden on operators in working machines such as walk-behind rice transplanters. [Means for solving the problem]

[0006] The walk-behind working machine of the present invention comprises a machine body, a protective member that protects an operator operating the machine body from above, and a protective member holder that supports the protective member on the machine body.

[0007] With the above configuration, the protective member can be held on the walk-behind working machine, and the protective member can prevent sunlight and rain from hitting the worker, thereby reducing the burden on the worker.

[0008] In the above configuration, it is preferable that the device further includes a handle provided at the rear of the body, and the protection member holder is attached to the handle.

[0009] By attaching the protective member holder to the handle that is held by the operator, the protective member can be conveniently positioned above the operator's head.

[0010] In the above configuration, it is preferable that the machine is provided with a seedling planting device for planting seedlings in a field, the seedling planting device being provided at the rear of the machine body and in front of the handle, having a seedling tray on which the seedlings are placed, and a seedling tray support frame for supporting the seedling tray, and the protective member holder being attached to the seedling tray support frame.

[0011] With the above-described configuration, the protective member holder is attached to at least two locations on the handle and the seedling tray support frame, which allows the protective member holder to be securely attached to the machine body.

[0012] In the above configuration, it is preferable that the protective member holder has a tubular member having a first portion extending rearward from the aircraft body and a second portion extending upward from the rear end of the first portion, and that the handle of the protective member is inserted into the second portion.

[0013] With the above-described configuration, the handle of the protection member can be suitably held by the simple configuration of the cylindrical member.

[0014] In the above configuration, it is preferable that the machine is provided with a handle provided at the rear of the machine body and a seedling planting device for planting seedlings in a field, the seedling planting device being provided at the rear of the machine body and in front of the handle, having a seedling tray on which the seedlings are placed, and a seedling tray support frame for supporting the seedling tray, and the protective member holder having a first mounting portion provided at the middle of the second part in the vertical direction and attached to the handle, and a second mounting portion provided at the tip of the first part and attached to the seedling tray support frame.

[0015] With the above configuration, the protective member holder is attached to at least two locations on the handle and the seedling tray support frame, which allows the umbrella holder to be securely attached to the machine body.

[0016] In the above configuration, it is preferable that a stopper means for preventing the handle inserted into the second part from coming out of the second part is provided at a vertical midpoint of the second part.

[0017] With the above configuration, the handle of the protection member can be prevented from slipping out of the second portion, and the protection member can be reliably held.

[0018] In the above configuration, it is preferable that the angle formed between the first portion and the second portion is set to be smaller than 90 degrees.

[0019] Generally, when a walk-behind work machine is equipped with a seedling tray, the seedling tray is inclined so that the upper part is positioned further back. When a protective member holder (second mounting portion) is attached to the seedling tray support frame that supports this seedling tray, the first part of the tubular member tends to be inclined so that the lower part is positioned further back. Therefore, by making the angle between the first part and the second part less than 90 degrees, the rearward inclination of the second part is reduced (the second part is positioned closer to vertical), and the protective member can be positioned conveniently above the operator's head.

[0020] Preferably, the protective member is an umbrella in use.

[0021] With the above configuration, it is possible to prevent sunlight and rain from hitting the worker when the umbrella is in use.

[0022] The working machine of the present invention includes a machine body, a protective member holder having an attachment part that can be attached to at least one of an operation panel, a main step, a fertilization frame that supports a fertilization device, and an antenna frame that supports a receiving antenna of a satellite positioning device, which are provided on the machine body, and a protective member supported by the protective member holder and that protects a crew member on the machine body from above.

[0023] The above configuration provides a protective member that protects the crew from above on board the vehicle, thereby preventing sunlight and rain from hitting the workers, thereby reducing the burden on the crew.

[0024] The umbrella holder of the present invention is an umbrella holder for a walk-behind working machine, and comprises a holding part for holding the handle of an umbrella in use, and an attachment part for attachment to the side of the machine body.

[0025] With the above configuration, the umbrella can be held in use on the walk-behind working machine, preventing sunlight and rain from hitting the worker through the umbrella, thereby reducing the burden on the worker. [Brief explanation of the drawings]

[0026] [Figure 1] FIG. 1 is an overall side view of a walk-behind rice transplanter. [Figure 2] FIG. 1 is a side view of the main parts of a walk-behind rice transplanter. [Figure 3] FIG. 1 is a perspective view of a main part of a walk-behind rice transplanter. [Figure 4] FIG. 10 is a side view of a working machine according to another embodiment. [Figure 5] FIG. 10 is a front view of a working machine according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0027] Fig. 1 is a side view of a walk-behind rice transplanter, which is an example of a walk-behind working machine. Fig. 2 is a side view of the main parts of the walk-behind rice transplanter. Fig. 3 is a perspective view of the main parts of the walk-behind rice transplanter. In each figure, F indicates the front direction, B indicates the rear direction, U indicates the upward direction, D indicates the downward direction, R indicates the rightward direction, and L indicates the leftward direction.

[0028] The overall configuration of the walk-behind rice transplanter will be described with reference to Figure 1. A transmission case 1 is provided at the center of the left and right front of the machine body, and an engine 3 is supported on an engine frame 2 connected to the front of the transmission case 1. A machine frame 4 is connected to the rear of the transmission case 1 and extends rearward, and a seedling planting device 5 and a handle 6 are connected to the rear of the machine frame 4, and a spare seedling tray 15 is supported on the machine frame 4. In other words, the machine body 100 is made up of the transmission case 1, engine frame 2, engine 3, machine frame 4, handle 6, etc. In addition, an umbrella holder 40 (an example of a "protective member holder") is provided on the handle 6 to hold an umbrella (an example of a "protective member") in use (open state).

[0029] As shown in Fig. 1, a right (left) support case 7 is supported so as to be swingable up and down around a horizontal axis P1 in the left-right direction on the right (left) part of the transmission case 1, and extends rearward. A right wheel 8 (axle 8a) for traveling is rotatably supported on the right part of an axle case 7a at the rear of the right support case 7, and a left wheel 8 (axle 8a) for traveling is rotatably supported on the left part of the axle case 7a at the rear of the left support case 7. The transmission also includes a center float 9 and left and right side floats 10.

[0030] The planting device 5 includes a feed case, a planting case, a planting arm, a seedling tray 14, and the like.

[0031] 1 and 2, a pair of left and right support frames 17 are connected to the rear end of the body frame 4. The left and right support frames 17 extend rearward and upward from the rear end of the body frame 4.

[0032] As shown in Figures 2 and 3, seedling tray support frames extending in the width direction of the machine body are supported in the middle of the left and right support frames 17. The seedling tray support frames 18 support the seedling trays 14 so that they can slide in the width direction (left and right direction) of the machine body.

[0033] A handle 6 is supported on the upper end of the support frame 17. The handle 6 has left and right grip portions 61 and an intermediate portion 62 connecting the left and right grip portions 61. The intermediate portion 62 is connected to the upper end of the support frame 17, and the grip portions 61 extend rearward from the intermediate portion 62. The handle 6 is formed, for example, by bending a pipe member, and a grip member made of, for example, resin is fitted onto the portion of the pipe member corresponding to the grip portions 61.

[0034] As shown in FIG. 2, the operation panel 20 is supported on the intermediate portion 61. The operation panel 20 is provided so that the left-right center of the operation panel 20 is located to one side in the left-right direction relative to the left-right center of the intermediate portion 62. In this embodiment, the left-right center of the operation panel 20 is provided so that it is located on the right side. The operation panel 20 is provided with various lever operating devices for operating the walk-behind rice transplanter. In this embodiment, three lever operating devices, lever 21a, lever 21b, and lever 21c, are provided.

[0035] As shown in Figure 3, the umbrella holder 40 is supported by the intermediate portion 62. The umbrella holder 40 is supported on the side opposite to the side where the center of the operation panel 20 is located in the left-right direction, rather than the center of the intermediate portion 62 (in this embodiment, the part to the left of the center in the left-right direction of the intermediate portion). In addition, in this embodiment, the umbrella holder 60 is supported by the seedling tray support frame 18.

[0036] As shown in Figures 2 and 3, the umbrella holder 40 has a tubular member 41. The tubular member 41 is curved to have a first portion 41a extending rearward from the machine body and a second portion 41b extending upward from the rear end of the first portion 41a. A first attachment portion 42 for attaching the umbrella holder 40 to the handle 6 is provided at the vertical midpoint of the second portion 41b. A second attachment portion 43 for attaching the umbrella holder 40 to the seedling tray support frame 18 is provided at the front end of the first portion 41a.

[0037] The first mounting portion 42 is formed by bending an elastic plate member such as metal. The portion of the first mounting portion 42 that is attached to the handle 6 is C-shaped. A bolt hole is provided at one end of the C-shape. When a bolt 42a and a nut 42b are fastened across the hole, the C-shape is elastically deformed, and the first mounting portion 42 is fixed to the handle 6.

[0038] The second mounting portion 43 is formed by bending an elastic plate member such as metal. The attachment point of the second mounting portion 43 to the seedling tray support frame 18 has an N-shape that opens downward. Holes are provided at the ends of the N-shape. By tightening bolts 43a and nuts 43b across the holes, the N-shape is elastically deformed, and the second mounting portion 43 is fixed to the seedling tray support frame 18.

[0039] As shown in Figure 3, the angle α between the first portion 41a and the second portion 41b of the tubular member 41 is set to be smaller than 90 degrees. In general, in a walk-behind rice transplanter, the seedling tray 14 is inclined so that its upper portion is positioned further rearward, and when the second mounting portion 43 is attached to the seedling tray support frame 18, the first portion 41a of the tubular member 41 tends to be inclined so that its lower portion is positioned further rearward. Therefore, by making the angle α between the first portion 41a and the second portion 41b smaller than 90 degrees, the rearward inclination of the second portion 41b is reduced (the second portion 41b is positioned closer to vertical), and the umbrella 101 can be positioned appropriately above the operator's head.

[0040] The handle 101a of the umbrella 101 is inserted into the second part 41b. A knob bolt 44 (corresponding to the "prevention mechanism" of the present invention) is provided in the vertical midpoint of the second part 41b. By inserting the handle 101a of the umbrella 101 into the second part 41b and tightening the knob bolt 44, the knob bolt 44 comes into contact with the handle 101a of the umbrella 101, and the handle 101a of the umbrella 101 is held inside the second part 41b. In this way, the second part 41b and the knob bolt 44 function as the "holding part" of the present invention.

[0041] As a result, the umbrella 101 in use (open state) is positioned above the handle 6, i.e., above the head of the worker holding the handle 6. The umbrella 101 is not particularly limited, but may be, for example, a parasol, an umbrella, or an umbrella that can be used as both a parasol and an umbrella.

[0042] [Another embodiment] (1) Although the umbrella holder 40 has been described as being attached to the handle 6 and the seedling tray support frame 18, this is not a limitation. It may be attached to only one of the handle 6 and the seedling tray support frame 18. It may also be attached to either one of the handle 6 and the seedling tray support frame 18 and another component on the machine body 100. It may also be attached to a component on the machine body 100 other than the handle 6 and the seedling tray support frame 18.

[0043] (2) The means for attaching the umbrella holder 40 to the airframe 100 is not limited to the above. For example, other means such as attachment using a turnbuckle or a knob bolt may be used. Also, for example, the umbrella holder 40 may be fixed to the airframe 100 by welding or the like.

[0044] (3) Although the cylindrical member 41 has been described as being curved and having the first portion 41a and the second portion 41b, the present invention is not limited to this. For example, a cylindrical member 41 that is not curved may be used, or a cylindrical member 41 that has been subjected to three-dimensional bending may be used.

[0045] (4) In the above embodiment, a walk-behind rice transplanter has been described as an example of a walk-behind working machine, but the present invention is not limited to this. For example, a walk-behind transplanter other than a walk-behind rice transplanter, such as a walk-behind vegetable transplanter, may also be used. Furthermore, a walk-behind working machine other than a walk-behind transplanter, such as a walk-behind cultivator or a walk-behind lawnmower, may also be used.

[0046] (5) The protective member holder (umbrella holder 40) may be provided not only on walk-behind working machines but also on riding-type rice transplanters and other riding-type working machines. For example, when the protective member holder is provided on a working machine such as a riding-type rice transplanter, the protective member holder may be provided on a fixed member around the steering wheel, an operation panel operated by the driver, a seat, a main step, a support frame behind the seat such as a fertilizer application frame, or a support frame 201 on which the receiving antenna 200 of the satellite positioning device is supported. The receiving antenna support frame 202 is provided on the upper part of the machine body. Its purpose is to protect the operator, but multiple protective member holders may also be provided when an assistant operator is on board. In the example shown in FIGS. 4 and 5, the umbrella holder 40 (an example of a "protective member holder") is supported on the antenna support frame 201 on which the receiving antenna 200 of the satellite positioning device is supported, and an umbrella 101 (an example of a "protective member") is provided on the umbrella holder 40.

[0047] (6) Furthermore, although the umbrella 101 has been used as an example of the protective member in the description, the protective member is not limited to an umbrella. Instead of the umbrella 101, other protective members may be attached to the protective member holder to obtain the same effect. For example, the protective member may be a canopy or a simple cabin. The canopy here is intended to protect the worker from rain, wind, and sunlight from above or from a certain angle, and the simple cabin is intended to have a shape that covers at least four sides: the front, left, right, and top. Both are intended to be supported from the same mounting position as the umbrella 101 supported by the umbrella holder 40 described above. [Industrial Applicability]

[0048] The present invention is not limited to walk-behind rice transplanters and other walk-behind work machines, but can also be applied to ride-on rice transplanters, ride-on seed sowing machines, and other work machines. [Explanation of symbols]

[0049] 40 Umbrella holder (protective member holder) 41 Cylindrical member 42 First mounting part 42 Second mounting part 100 aircraft 101 Umbrella (protective material)

Claims

1. The aircraft and a protective member that protects an operator operating the machine from above; a protective member holder that supports the protective member on the machine body.

2. A handle is provided at the rear of the aircraft body, 2. The walk-behind working machine according to claim 1, wherein the protective member holder is attached to the handle.

3. It is equipped with a seedling planting device for planting seedlings in the field, The seedling planting device is provided at the rear of the machine body and in front of the handle, and has a seedling tray on which the seedlings are placed, A seedling tray support frame is provided to support the seedling tray, 3. A walk-behind work machine according to claim 2, wherein the protective member holder is attached to the seedling tray support frame.

4. the protective member holder has a tubular member, the tubular member having a first portion extending rearward from the fuselage and a second portion extending upward from a rear end of the first portion; 2. The walk-behind work machine according to claim 1, wherein a handle of the protection member is inserted into the second portion.

5. A handle provided at the rear of the aircraft; It is equipped with a seedling planting device for planting seedlings in the field, The seedling planting device is provided at the rear of the machine body and in front of the handle, and has a seedling tray on which the seedlings are placed, A seedling tray support frame is provided to support the seedling tray, A walk-behind working machine as described in claim 4, wherein the protective member holder has a first mounting portion provided at the midpoint of the second part in the vertical direction and attached to the handle, and a second mounting portion provided at the tip of the first part and attached to the seedling tray support frame.

6. 6. The walk-behind working machine according to claim 5, further comprising a retaining means at a vertical midpoint of the second section for preventing the handle inserted into the second section from slipping out of the second section.

7. 7. The walk-behind working machine according to claim 6, wherein the angle formed between the first portion and the second portion is set to be smaller than 90 degrees.

8. 8. The walk-behind working machine according to claim 1, wherein the protective member is an umbrella in use.

9. The aircraft and a protective member holder having an attachment portion attached to at least one of an operation panel, a main step, a fertilization frame supporting a fertilization device, and an antenna frame supporting a receiving antenna of a satellite positioning device, which are provided on the machine body; a protective member supported by the protective member holder for protecting a crew member on board the machine body from above;

10. The work machine according to claim 9, wherein a plurality of the protection member holders are provided.

11. An umbrella holder for a work machine, comprising: A holding part that holds the handle of the umbrella in use; An umbrella holder having an attachment part that can be attached to the side of the aircraft body.

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