JP2927667B2 - Walking type work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a walking type working machine,
The present invention relates to a configuration in which a film stretched so as to cover the surface of a ridge in a field is wound up.

[0002]

2. Description of the Related Art In field cultivation, a soil disinfectant may be injected into a ridge formed in a field before planting a crop. When the soil disinfectant is injected in this way, a film is stretched on the surface of the ridge. In some cases, the disinfectant may be prevented from scattering and the disinfecting effect may be improved. When the disinfection is completed in this way, the film stretched on the surface of the ridge is removed. In this case, a film take-up roller is attached to the front part of the walk-type work machine, and while the walk-type work machine is advanced along the ridge, the take-up roller is rotationally driven to wind up the ridged film. (For example, see Japanese Patent Application No. 4-173581 filed by the present applicant).

[0003]

When a walking-type work machine is advanced along a ridge, a slip is inevitably generated between a traveling device of the walk-type work machine and a field scene. This allows
As described above, if a take-up roller is provided separately from the traveling device of the walking-type working machine, the walking-type working machine does not advance much due to slip on the traveling device side, but the winding roller precedes this state. Attempts to wind up the film may cause the film to tear and fail to wind up properly.

Further, if the winding roller is driven to rotate by the power of the walking-type working machine, the transmission structure from the walking-type working machine to the winding roller tends to be complicated. There is still room for improvement in terms of simplification. The present invention relates to a walking type working machine that is configured so that a ridged film can be wound up irrespective of a slip or the like on a traveling device side, and that the entire winding up structure is simplified. It is an object.

[0005]

The feature of the present invention resides in the following construction of the walking type working machine as described above. That is, [1] a winding body capable of winding a film of a predetermined width is provided on an axle to which the traveling device is connected, and the winding body is placed on a ridge whose surface is covered with the film. The ridge film is wound around a winding body while the machine body is advanced by being driven to rotate.

[2] In the configuration of the above [1], a film releasing member is provided on a fixed portion of the machine body on the rear side in the traveling direction of the winding body, and the film releasing member is provided above the rear side in the traveling direction from the ground position of the winding body. The film is taken out and hung on a loose member, and the film is taken out of the loose member to the front in the traveling direction and wound up on a winding body.

[3] In the configuration of the preceding paragraph [1] or [2], a pair of axles are protruded left and right from the left and right central lower portions of the machine body, and the left and right axles are provided with a winding body, and a traveling direction of the winding body is provided. On the fixed part at the center on the left and right of the aircraft on the front side,
There is a cutter that cuts the film on the ridge surface from side to side.

[0008]

[Action]

[I] When configured as in [1], for example, FIGS.
As shown in FIG. 4, if the winding body 6 of the walking type working machine is placed on the film F of the ridge A, and the winding body 6 is driven to rotate, and the walking type working machine advances along the ridge A, The film F is directly wound on the winding body 6. In this case, if the film F is wound up on the winding body 6 even a little, the walking type working machine advances along the ridge A almost without slipping by winding the winding body 6, and the film F is wound. Take up.

If the take-up body 6 is arranged at a position different from the axle 1a, a support structure for the take-up body 6 and a transmission structure from the walking type working machine to the take-up body 6 are required. In contrast,
If the take-up body 6 is directly attached to the axle 1a as in the above item [1], the take-up body 6 is directly supported by the axle 1a and is directly driven to rotate by the axle 1a. Winding body 6 from structure and walking type working machine
There is no particular need for a power transmission structure.

[II] When configured as in the preceding section [2],
As in the case of the configuration of the preceding paragraph [1], it has the “operation” described in the preceding paragraph [I], and additionally has the following “operation”. For example, as shown in FIGS. 2 and 3,
When a film F of a predetermined width is stretched on each surface of the ridge A formed in the field, the soil G is covered in a streak shape on both left and right sides or one side of the film F so that the film F does not move. There are cases.

In such a case, if the releasing member as described in the above item [2] is provided, for example, as shown in FIGS.
Is not immediately wound on the winding body 6,
The film F is pulled up by the release member 11 from the ground contact position, and the film F is turned upside down by the release member 11 and is wound on the winding body 6. Accordingly, the soil G on the side of the film F is dropped from the film F during this time, so that the soil G is not taken up by the winding body 6 together with the film F.

[III] When configured as in the above item [3], similar to the case of the above item [1] or [2], it has the “action” described in the above item [I] or [II], In addition, it has the following “action”. For example, as shown in FIG. 4, when a film F having a predetermined width is stretched on each surface of a ridge A formed in a field, one film F may be wide.

In such a case, if the configuration is made as in the above item [3], the walking type working machine is positioned at the left and right center of the film F as shown in FIGS. What is necessary is to advance along A. As a result, the left and right centers of the film F are cut by the cutter 14, and the left and right cut films F are wound on the left and right winding bodies 6.

[0014]

According to the first aspect of the present invention, since the walking type working machine winds up the film directly on the winding body without slipping, the film may be broken and interrupted by pulling by the slip. Thus, the winding operation can be performed without any trouble, and the efficiency of the winding operation can be improved. In addition, when configured as in claim 1, there is no particular need for a support structure for the winding body and a transmission structure from the walking type working machine to the winding body, which is advantageous in terms of simplification of the structure and weight reduction. .

According to a second aspect of the present invention, the above-mentioned "effect of the invention" of the first aspect is provided, as in the case of the first aspect. According to the second aspect of the present invention, the film can be wound up while dropping the soil covered on the side of the film, so that the soil is wound into the winding body together with the film, and is wound up. It does not mean that the outer diameter of the obtained film becomes abnormally large and hinders winding.

According to the third aspect of the invention, the above-mentioned "effect of the invention" of the first or second aspect is provided in the same manner as in the case of the first or second aspect. According to the third aspect of the present invention, even a wide film can be cut into two and divided and wound on the left and right winding bodies, so that the efficiency of the winding operation can be further improved.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS.
The engine 3 is mounted on a support frame 2 (corresponding to a fixed portion) fixed to the front of the vehicle, and traveling wheels 19 (corresponding to a traveling device) are mounted on a pair of axles 1a protruding left and right from the lower portion of the transmission case 1. At the top of the steering handle 4 and at the rear of the transmission case 1 various working devices (not shown)
The hitch 5 (corresponding to a fixed portion) is provided to constitute a walking type working machine.

A pair of left and right winding bodies 6 are connected to the ends of the left and right axles 1a. Next, the winding bodies 6 will be described. As shown in FIGS.
A central support shaft 7, spoke members 8 radially fixed near both right and left ends of the support shaft 7, and six elongated flat plate-like ground members erected and connected in parallel to the support shaft 7 across the left and right spoke members 8. 9, three ring members 10 connected over each spoke member 8 and ground member 9.

The winding body 6 configured as described above
The end of the support shaft 7 is connected to the axle 1a on the side of the walking-type working machine, and the winding body 6 is attached to the walking-type working machine. In this case, the end of the support shaft 7 is connected to the axle 1a while the ring member 10 inside the take-up body 6 is applied to the side surface of the wheel 19, so that the support shaft 7 of the take-up body 6
a so as to be linearly connected to a. And the outer diameter of the winding body 6 is larger than the outer diameter of the wheel 19,
It is set to be a little smaller.

As shown in FIGS. 1, 2, and 3, a pair of left and right bar-shaped loose members 1
1 is supported. The release member 11 is fixed to a boss 12 supported by the hitch 5 and extends to the rear side of the take-up body 6, and a pair of obliquely upward guide bars 11 a is fixed. In this case, the boss 12 and the release member 1
1 is supported so as to be able to freely swing within a range of a predetermined angle around the longitudinal axis of the hitch 5. As shown in FIGS. 1 and 2, the frame 13 extends forward from the front end of the support frame 2, and a large saw-blade disk-shaped cutter 14 is freely rotatably supported below the frame 13. . A pair of left and right ground wheels 15 are supported by the frame 13 so as to sandwich the front side of the cutter 14.

As shown in FIGS. 2 and 3, when a film F having a predetermined width is stretched on each surface of the ridge A formed in the field, the soil G is covered on both left and right sides of the film F in a stripe shape. The film F does not move. Therefore, when removing the film F of the ridge A as described above, as shown in FIGS. 2 and 3, the walking type work machine is positioned at the center of the ridge A on the left and right, and the left and right wheels 19 and the left and right winding bodies are provided. 6 is driven to rotate, and the walking-type work machine is advanced along the ridge A to the left in FIG. 1 (upward in FIG. 2).

As a result, as the walking-type working machine advances,
As shown in FIGS. 1, 2, 3, and 4, the left and right centers of the film F are cut by the cutter 14, and the left and right cut films F are pulled upward by the release member 11,
The paper is wound on the left and right winding bodies 6 while passing between the guide bars 11a of the left and right releasing members 11 and facing the front in the traveling direction. In this case, once the film F has been wound around the winding body 6, the winding of the winding body 6
The walk-behind work machine proceeds with almost no slip. In addition, the walk-behind work machine is stably advanced in a three-point ground state by the front grounding wheel 15 and the left and right winding bodies 6 and the wheels 19 (see FIG. 2). Does not enter the ridge A more than the setting, and the durability of the cutter 14 is maintained.

As shown in FIGS. 2 and 3, the releasing member 11 is located above the ground position of the winding body 6, and the width of the releasing member 11 is larger than the width of the film F cut to the left and right by the cutter 14. The interval between the left and right guide bars 11a is set to be narrower. As a result, the film F cut to the left and right by the cutter 14 is pulled upward while being squeezed, is turned upside down, and is wound on the winding body 6, during which time the film shown in FIGS. The soil G on both left and right sides of F is dropped from the film F. At the time of winding, the boss 12 and the release member 11 are
Freely swings so as to vibrate within a range of a predetermined angle around the vertical axis, and the soil G is further dropped.

In the case of a narrow ridge A as shown in FIG. 5 with respect to a wide ridge A as shown in FIG. 2 and FIG. Put on F,
Advance the walking machine. In this case, the cutter 14
Since is not used, the mounting position of the grounding wheel 15 with respect to the frame 13 shown in FIG. 1 is changed so that the grounding wheel 15 is positioned below the cutter 14. As a result, even in the state shown in FIG. 5, the walking-type working machine can stably advance in the three-point grounding state by the front grounding wheel 15 and the left and right winding bodies 6 and the wheels 19. Thereby, the cutter 14 is prevented from contacting the field scene, and the durability of the cutter 14 is maintained.

In the winding body 6 shown in FIGS. 1, 2 and 3, the position of each grounding member 9 is moved toward the support shaft 7 so that the outer diameter of the winding body 6 can be reduced as a whole. I have. Thus, when the film F is wound on the left and right winding bodies 6 as described above, the outer diameter of the winding body 6 is reduced as a whole, so that the wound film F is rolled. Thus, it can be easily extracted from the winding body 6.

[First Alternative Embodiment] As shown in FIG. 6, the left and right release members 11 shown in FIGS. 2 and 3 are constituted by round bars without guide rods 11a (see FIG. 3). 11 may be formed obliquely downward toward the outside. As a result, when the film F cut left and right by the cutter 14 is pulled upward by the release member 11, the inside of the film F cut by the cutter 14 is high, and the left and right sides on which the soil G is covered are low. Will be raised. In this way, by raising the film F while giving it an inclination, the soil G is dropped outside without entering the inside of the film F.

[Second Alternative Embodiment] Instead of the winding body 6 shown in FIGS. 1, 2 and 3, the winding body 6 may be constructed as shown in FIG. As shown in FIG. 7, the outer spoke members 8 are compared with the inner spoke members 8 fixed to the support shaft 7.
Is set short so that the grounding member 9 is fixed obliquely to the support shaft 7, and the winding body 6 is formed in a trapezoidal conical shape. The outer ring member 10 is configured to be detachable from the outer end of the support shaft 7. Thereby, when the film F is wound on the left and right winding bodies 6, the wound film F can be easily pulled out from the winding body 6 in a roll state by removing the outer ring member 10. it can.

[Third Alternative Embodiment] Instead of stretching the film F for each ridge A as shown in FIGS. 4 and 5, the film F is stretched over the entire field as shown in FIGS. 9 and 10. In some cases. In this case, one of the left and right sides of the film F is embedded in the field, and the opposite side is inserted into the adjacent film F.
A film F is stretched over the entire surface of the field by attaching the tape F to the upper surface of the field.

In such a case, as shown in FIGS. 8, 9 and 10, a frame 18 which can be changed in posture and fixed freely by inverting left and right by 180 ° is attached to a center frame 13 in the left and right directions.
The cutter 14 and the pair of grounding wheels 15 are attached to the frame 18, and another freely rotatable cutter 17 is attached to the auxiliary frame 20 fixed to the frame 18. As a result, as shown in FIGS. 9 and 10, a position slightly left of the left and right sides of one film F with respect to the left and right sides of one film F is cut by the cutter 14. Cut the position of. Therefore, the left side of the film F cut by the cutter 14 and the remaining film F and the tape 16 from the previous time are wound on the winding body 6 on the left side of the paper. The right side of the sheet of the film F cut at 14 and 17 is wound up.

As described above, when the winding of one film F is completed and the walk-behind work machine reaches the ridge, the positions of the frame 18 and the cutter 17 are inverted by 180 ° and positioned on the opposite side. The film F is wound up in the same manner as described above. As shown in FIGS. 2 and 7, instead of the winding body 6 formed with the elongated flat plate-like grounding member 9,
The winding body 6 may be formed in a cylindrical drum shape.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a walking type working machine and a winding body.

FIG. 2 is an overall plan view of a walking type working machine and a winding body.

FIG. 3 is an overall rear view of the walking-type working machine and the winding body.

FIG. 4 is a plan view showing a state in which the film of one ridge is being wound on a winding body while being cut.

FIG. 5 is a plan view showing a state where two ridged films are wound on left and right winding bodies;

FIG. 6 is an overall rear view of a walking-type working machine and a winding body according to a first alternative embodiment.

FIG. 7 is an overall rear view of a winding body according to a second alternative embodiment.

FIG. 8 is a side view showing the vicinity of a walking-type working machine, a winding body, and a cutter according to a third alternative embodiment.

FIG. 9 is a longitudinal rear view near a cutter according to a third alternative embodiment.

FIG. 10 is a plan view showing a state in which a film of one ridge is wound around a winding body while being cut in a third alternative embodiment.

[Explanation of symbols]

 1a axle 2,5 fixing part 6 take-up body 11 release member 14 cutter 19 traveling device A ridge F film

Claims (3)

(57) [Claims] 1. A winding body (6) capable of winding a film (F) having a predetermined width is provided on an axle (1a) to which a traveling device (19) is connected, and its surface is covered with the film (F). The film (F) of the ridge (A) is wound on the wound body (6) while the machine body is advanced by placing the wound body (6) on the wound ridge (A) and rotating the wound body (6). A walking-type work machine configured to be wound around a take-up body (6). 2. A release member (1) for a film (F) is fixed to a fixing portion (5) of the body behind the winding body (6) in the traveling direction.
1), the film (F) is taken out and hung on the release member (11) above the rear side in the traveling direction from the contact position of the winding body (6), and the film (F) is attached to the release member ( 2. The walking-type working machine according to claim 1, wherein the walking-type working machine is configured to take out the front side in the traveling direction from 11) and wind up the winding body. 3. A pair of axles (1a) are protruded left and right from the left and right central lower portions of the fuselage, and the left and right axles (1a) are provided with the winding body (6) and the winding body (6).
(2)
The walk-behind working machine according to claim 1 or 2, further comprising a cutter (14) for cutting the film (F) on the surface of the ridge (A) from side to side.