JP5258445B2 - Management machine - Google Patents

Description

  The present invention relates to a management machine used for operations such as tillage, middle tillage, weeding and cultivating in a field.

2. Description of the Related Art Conventionally, as an example of a management machine, there is a machine equipped with a rotary type tiller device at a lower part of a support arm body protruding from the machine body. The tillage device has a horizontally long tillage shaft that is rotatably supported by the lower portion of the support arm body, and a plurality of tilling claws protruding from the outer peripheral surface of the tillage shaft (for example, Patent Document 1). reference). In this case, the farm field is cultivated by the group of claws rotating together with the tilling shaft body by rotating the tilling shaft body with the power from the power source mounted on the body while moving the management machine forward. become.
Japanese Utility Model Publication No. 5-48601

  By the way, in the structure where the tilling shaft body is rotatably supported by the lower part of the support arm body as in the management machine of Patent Document 1, the vicinity of the connecting portion between the support arm body and the tilling shaft body (the outer periphery of the tilling shaft body) In the vicinity of the part), weeds etc. tend to wrap around and tend to get entangled.

  In this regard, in Patent Document 1, the outermost nail holder for fixing the tilling claw provided on the outer peripheral surface of the tilling shaft body (the one closest to the supporting arm body) is directed toward the supporting arm body. By attaching a rod that extends in parallel with the rotation axis of the tilling shaft, the winding of the grass and the like around the connecting portion between the support arm and the tilling shaft is suppressed.

  However, in the configuration of Patent Document 1, the rod body is attached to the outermost claw holder, and the rod body rotates together with the tilling claw group and thus the tilling shaft body. It acts only locally on the vicinity of the connecting portion between the arm body and the tilling shaft body (near the outer peripheral edge of the tilling shaft body). That is, it is difficult to say that the function of preventing the winding of the grass and the like by the rod body is sufficient because only the vicinity of the periphery of the rod body in the outer peripheral edge of the tilling shaft body can prevent the winding of the grass and the like. Met.

  Therefore, the present invention has a technical problem to provide a management machine that solves the above-described problems and can reliably prevent wrapping of reeds and the like.

The invention of claim 1 is provided with a rotary tiller (4) at the lower part of a pair of support arm bodies (3) projecting from the body (2), and the tiller (4) supports the both supports. It has a horizontally long tillage shaft (20) rotatably arranged at the lower part of the arm body (3), and a plurality of tillage claws (21) protruding from the outer peripheral surface of the tillage shaft (20). and it has a tiller, the each supporting arm member (3) is provided with a pair of protruding so as to face the upper surface of the outer peripheral edge of the support arm member (3) close in the tilling shaft body (20) An imaginary line (CL) extending along the longitudinal direction of the support arm body (3) perpendicular to the rotational axis (A) when viewed from the direction of the rotational axis (A) of the tilling shaft (2) ) Are attached symmetrically and in a fixed position on both sides .

According to the present invention, a rotary-type tilling device (4) is provided at the lower part of a pair of support arm bodies (3) projecting from the machine body (2), and the tilling device (4) includes both the supporting arm bodies. It has a horizontally long tillage shaft (20) rotatably arranged at the lower part of (3), and a plurality of tillage claws (21) projecting from the outer peripheral surface of the tillage shaft (20) . It is a management machine, Comprising: A pair of protrusion which protrudes so that each support arm body (3) may face the upper surface side of the outer periphery part near the support arm body (3) in the tilling shaft body (20) An imaginary line (CL) extending along the longitudinal direction of the support arm body (3) perpendicular to the rotation axis (A) when the cover body is viewed from the rotation axis (A) direction of the tilling shaft body (2). on both sides, because they and mounted stationary manner symmetrical shape, at the time of operations such as tilling, the An output cover body rotates relatively with respect to the tilling shaft body and tries to wrap around the connection portion between the support arm body and the tilling shaft body (near the outer peripheral edge of the tilling shaft body). Etc. are scraped off.

  In this case, since the protruding cover body rotates relative to the tilling shaft body, a function of preventing the winding grass and the like from being wound by the protruding cover body acts on the entire outer periphery of the tilling shaft body. It will be. Therefore, the presence of the protruding cover body makes it difficult for the grass and the like to wrap around the connection portion between the support arm body and the tilling shaft body (near the outer peripheral edge of the tilling shaft body). It is possible to effectively prevent wrapping and clogging. Further, even if the grass or the like wraps around the connecting portion between the support arm body and the tilling shaft body, the presence of the projecting cover body causes the grass or the like to reach the rotational axis of the tilling shaft body. There is also an advantage that there is little possibility of entanglement and it is easy to remove hay and the like.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, when a term indicating a specific direction or position (for example, “front / rear”, “left / right”, etc.) is used as necessary, the traveling direction of the management machine is used as a reference unless otherwise described. Further, these terms are used for convenience of explanation, and do not limit the technical scope of the present invention.

(1). First, the schematic structure of the management machine 1 will be described with reference to FIGS. 1 and 2.

  The management machine 1 of the embodiment includes a rotary type tiller 4 at the lower part of a support arm body 3 protruding from the machine body 2. A steering handle 5 is provided at the rear of the upper surface of the body 2 so as to extend rearward and obliquely upward. When the operator operates the steering handle 5 to the left and right, the direction (traveling direction) of the machine body 2 itself is changed.

  A pair of left and right moving wheels 6 is attached to a location in front of the tilling device 4 in the body 2. At the time of non-work such as traveling on the road or over the fence, the operator tilts the steering handle 5 forward, moves the management machine 1 in a state where the tilling device 4 is separated from the ground and only the moving wheel 6 is grounded. It will be.

  A resistance rod 7 that pierces into the ground and provides resistance to the forward movement of the machine body 2 is attached to a position behind the tillage device 4 in the machine body 2 so as to be rotatable up and down around a lateral pivot shaft 8. Yes. If the resistance rod 7 is deeply pierced deeply into the ground, it can be deeply cultivated at a slow forward speed, and if the resistance rod 7 is deeply pierced deeply into the ground, it can be cultivated at a high forward speed and shallow in depth. It will be possible.

  Further, the body 2 is formed with a battery housing portion 9 that opens rearward. A battery 10 is detachably attached to the battery housing 9. In this case, the battery 10 is inserted into the battery housing 9 from the rear of the machine body 2, and the power output unit 11 formed at the tip of the battery 10 is connected to the power input unit (not shown) disposed in the battery housing 9. By closely contacting, the battery 10 is electrically connected to an electric motor (details will be described later) as a power source for driving the tilling device 4.

  A hand operating lever 13 is provided on the inner peripheral side of the grip portion 12 formed on the distal end side of the steering handle 5. When the hand operating lever 13 is gripped together with the grip portion 12, the tilling device 4 is driven and the tilling device 4 is driven. On the other hand, when the hand gripping the grip portion 12 is loosened and released from the hand operating lever 13, the cutting device 4 is turned off. Is configured to stop.

  The operation / stop operation of the tillage device 4 by the hand operation lever 13 is enabled by turning on the main power switch 14 provided in the machine body 2. If the main power switch 14 is turned off, the tilling device 4 will not be driven even if the hand control lever 13 is operated.

(2). Detailed structure of the tilling device Next, the detailed structure of the tilling device 4 will be described with reference to FIGS.

  The support arm body 3 of the embodiment is a pair of left and right, and the tilling device 4 is disposed between the lower portions of the left and right support arm bodies 3. Each support arm body 3 includes an arm rod 15 made of a substantially L-shaped hollow pipe projecting from the left and right sides of the machine body 2 and a bearing plate 16 detachably attached to the lower end portion of the arm rod 15. Yes. The tillage device 4 includes a horizontally long tillage shaft 20 that is rotatably disposed between the left and right bearing plates 16, and a plurality of tillage claws 21 that protrude from the outer peripheral surface of the tillage shaft 20.

  The tilling shaft 20 has a hollow cylindrical tilling rotor 22 and a rotor shaft 23 that protrudes outward from the left and right end faces of the tilling rotor 22. The rotor shafts 23 are detachably fixed to the bearing plates 16 of the corresponding support arm bodies 3 respectively. That is, the tilling shaft body 20 (the tilling rotor 22 and the rotor shaft 23) is supported in the form of a double-supported beam between the lower portions of the left and right support arm bodies 3 (between the left and right bearing plates 16). The tilling rotor 22 is rotatably supported on the rotor shaft 23. The plurality of tilling claws 21 are attached to the outer peripheral surface of the tilling rotor 22.

  Although details are omitted, an electric motor and a speed reduction mechanism as a power source are arranged inside the tilling rotor 22. In this case, the electric motor is driven by supplying power from the battery 10, and the tilling rotor 22 is rotationally driven around the rotor shaft 23 by the rotational power from the electric motor via the speed reduction mechanism. The field is cultivated by the rotation of the cultivating claws 21 together with the cultivating rotor 22. The electric cord that connects the power input unit in the battery housing 9 and the electric motor is arranged through the inside of either the left or right arm rod 15 and a cord insertion hole formed in the rotor shaft 23.

  Each bearing plate 16 is fixed in position with a plate-like protruding cover body 25a that protrudes so as to face at least a part of the outer peripheral edge 24 (the outer peripheral edge 24 adjacent to each bearing plate 16) of the tilling rotor 22. Attached. 1 to 3 show a first embodiment of the protruding cover body 25a. In this case, the protruding cover body 25a may be provided integrally with the bearing plate 16, or may be provided as a separate body (fixed by welding or the like, bolted, or the like).

  In the protruding cover body 25a of the first embodiment, a portion located on the upstream side in the rotation direction R of the tilling rotor 22 is brought close to the outer peripheral edge 24 of the tilling rotor 22 from above. In particular, the protruding cover body 25a of the first embodiment is inclined so as to move away from the outer peripheral edge 24 of the tilling rotor 22 as it goes from the upstream side to the downstream side in the rotation direction R of the tilling rotor 22 (FIG. 3 (a )reference).

  According to the above configuration, the protruding cover body 25a protruding so as to face at least a part of the outer peripheral edge 24 of the tilling rotor 22 is fixedly attached to the bearing plate 16 constituting the support arm body 3. Therefore, at the time of working such as tilling, the protruding cover body 25a rotates relative to the tilling rotor 22, and near the connecting portion between the bearing plate 16 and the tilling rotor 22 constituting the support arm body 3 (of the tilling rotor 22). The grass or the like to be wrapped around the outer peripheral edge 24) is scraped off.

  In this case, since the protruding cover body 25a rotates relative to the tilling rotor 22, the function of preventing the winding grass and the like from being wound by the protruding cover body 25a acts on the entire circumference of the outer peripheral edge 24 of the tilling rotor 22. become. Therefore, the presence of the protruding cover body 25a makes it difficult for the grass and the like to wind around the connection portion between the bearing plate 16 and the tilling rotor 22 (near the outer peripheral edge 24 of the tilling rotor 22). Winding and clogging can be effectively prevented.

  In particular, since the protruding cover body 25a of the first embodiment is plate-shaped, when scraping the cocoon or the like to be wound around the connecting portion between the bearing plate 16 and the tilling rotor 22, It is possible to play the role of a cutting blade that cuts the wire, and also in this respect, it is possible to exert a high effect on the winding and prevention of clogging. Further, even if cocoon grass or the like is wound around the connection portion between the bearing plate 16 and the tilling rotor 22, the presence of the protruding cover body 25a is less likely to entangle the rotor shaft 23 with the cocoon grass. There is also an advantage that it is easy to remove.

  Furthermore, in the protruding cover body 25a of the first embodiment, a portion located upstream in the rotation direction R of the tilling rotor 22 is brought close to the outer peripheral edge 24 of the tilling rotor 22, and the rotation direction R of the tilling rotor 22 is increased. When viewed from the upstream side, the entrance side between the protruding cover body 25a and the outer peripheral edge 24 of the tilling rotor 22 is narrow, so that entry of grass or the like into the portion can be suppressed. Accordingly, the effect of preventing winding and clogging of the grass and the like around the connection portion between the bearing plate 16 and the tilling rotor 22 (near the outer peripheral edge 24 of the tilling rotor 22) and clogging is enhanced.

  Moreover, the protruding cover body 25a of the first embodiment is inclined so as to move away from the outer peripheral edge 24 of the tilling rotor 22 from the upstream side to the downstream side in the rotation direction R of the tilling rotor 22, so that the tilling rotor 22 When viewed from the downstream side in the rotation direction R, the outlet side between the protruding cover body 25a and the outer peripheral edge 24 of the tilling rotor 22 becomes wider. For this reason, the presence of a portion located on the downstream side in the rotation direction R of the tilling rotor 22 in the protruding cover body 25a exhibits the same effect as increasing the diameter of the tilling rotor 22. As a result, it is possible to more reliably prevent wrapping and clogging of grass and the like around the connection portion between the bearing plate 16 and the tilling rotor 22.

(3). Another Example of Projecting Cover Body FIGS. 4 to 6 show other examples of the projecting cover body. In addition, in the following description, the code | symbol of the protrusion cover body with respect to each Example is distinguished by attaching | subjecting the alphabet corresponding to the order of an Example to the code | symbol of a protrusion cover body (For example, the protrusion cover body of 1st Example). ) Is 25a, and the protruding cover body of the second embodiment is 25b).

  The protruding cover bodies 25b to 25d shown in the different examples are viewed from the direction of the rotation axis A of the rotor shaft 23 (left and right direction, see the dashed lines in FIGS. 4B, 5B, and 6B). The imaginary line CL orthogonal to the rotational axis A of the rotor shaft 23 (see the dashed line in FIG. 4A, FIG. 5A and FIG. 6A) is formed symmetrically.

  The protruding cover body 25b of the second embodiment shown in FIGS. 4 (a) and 4 (b) is a pair of front and rear symmetrically arranged on both sides of the virtual line CL, and both are integrally formed with the bearing plate 16. Or it is attached separately in a fixed position. The rear projecting cover body 25b located on the upstream side in the rotation direction R of the tilling rotor 22 is inclined so as to move away from the outer peripheral edge 24 of the tilling rotor 22 from the upstream side in the rotation direction R toward the downstream side. That is, the inlet side between the rear projecting cover body 25b and the outer peripheral edge 24 of the tilling rotor 22 is narrow. The front projecting cover body 25b is inclined so as to approach the outer peripheral edge 24 of the tilling rotor 22 from the upstream side in the rotational direction R toward the downstream side.

  The protruding cover body 25 c of the third embodiment shown in FIGS. 5A and 5B is formed in an arc plate shape extending along the outer peripheral edge 24 of the tilling rotor 22, and the outer peripheral edge of the tilling rotor 22. It is fixed to the bearing plate 16 so as to be close to the portion 24, either integrally or separately. The protruding cover body 25d of the fourth embodiment shown in FIGS. 6 (a) and 6 (b) is formed in a simple horizontal plate shape.

  Also when comprised like the above another example, since the protrusion cover bodies 25b-25d rotate relatively with respect to the cultivation rotor 22 similarly to 1st Example, all of the outer-periphery edge parts 24 in the cultivation rotor 22 are included. Over the circumference, the function of preventing the winding of the grass and the like by the protruding cover body 25a acts, and the winding and clogging of the grass and the like around the connecting portion between the bearing plate 16 and the tilling rotor 22 (near the outer peripheral edge 24 of the tilling rotor 22). Can be prevented.

  In addition, the protruding cover bodies 25b to 25d of these other examples are formed in a symmetric shape across a virtual line CL orthogonal to the rotation axis of the rotor shaft 23 when viewed from the rotation axis direction of the rotor shaft 23. Therefore, the left and right support arm bodies 3 (bearing plates 16) can be shared. For this reason, it is possible to contribute to cost reduction and to reduce the work of assembling work when manufacturing the management machine.

(4). Others The present invention is not limited to the above-described embodiment, and can be embodied in various forms. For example, the protruding cover body according to the present invention is not limited to a plate shape, but may be a block shape. Further, the protruding cover body is not limited to the bearing plate 16 and may be attached to the arm rod 15. In short, it should just be provided in the support arm body 3 side. In addition, the structure of each part is not limited to embodiment of illustration, A various change is possible in the range which does not deviate from the meaning of this invention.

It is a left view of a management machine. It is a front view of a management machine. It is expansion explanatory drawing which shows the protrusion cover body of 1st Example, (a) is a left view, (b) is a front view. It is expansion explanatory drawing which shows the protrusion cover body of 2nd Example, (a) is a left view, (b) is a front view. It is expansion explanatory drawing which shows the protrusion cover body of 3rd Example, (a) is a left view, (b) is a front view. It is expansion explanatory drawing which shows the protrusion cover body of 4th Example, (a) is a left view, (b) is a front view.

DESCRIPTION OF SYMBOLS 1 Management machine 2 Machine body 3 Support arm body 4 Cultivation apparatus 15 Arm rod 16 Bearing plate 20 Cultivation shaft body 21 Cultivation claw 22 Cultivation rotor 23 Rotor shaft 24 Outer peripheral edge part 25a-25d Projection cover body

Claims (1)

A rotary-type tilling device (4) is provided at the lower part of the pair of support arm bodies (3) projecting from the body (2), and the tilling device (4) is provided at the lower part of the both supporting arm bodies (3). It is a management machine having a horizontally long tillage shaft body (20) rotatably arranged on the outer periphery and a plurality of tillage claws (21) provided on the outer peripheral surface of the tillage shaft body (20). ,
Wherein each support arm member (3), a pair of projections cover body which projects so as to face the upper surface side of the outer peripheral edge portion of the support arm member (3) close in the tilling shaft body (20), the tilling Symmetrical on both sides across a virtual line (CL) perpendicular to the rotational axis (A) and extending along the longitudinal direction of the support arm body (3) when viewed from the rotational axis (A) direction of the shaft body (2) Attached and fixed in position,
Management machine.

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