JP2006180749A - Walking type implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a walking type implement capable of being housed compactly. <P>SOLUTION: This walking type plower 11 equipped with a handle (a handle ) 12 equipped with a switch lever (an operating means) 13 for operating the drive of a motor (a driving part), a frame 20 installed with the handle 12 at its one end and a plowing part (a working part) 19 at another end of it, and performing a work by operating the switch lever 13 to transmit the drive of the motor is provided by installing a screw (a rotating part) 21A for making the implement foldable at the middle part of the frame 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention includes a handle provided with an operation means for operating the drive of the drive unit, a frame provided with the handle at one end, and a working unit attached to the other end of the frame, and operates the operation means. The present invention relates to a walk-type work machine that transmits a drive of a drive unit and performs work.

  A conventional walking type tiller (walking type working machine) is attached to a handle having an accelerator lever (operation means) for operating a motor, a frame having the handle at one end, and the other end of the frame. And a tilling part (working part) having a rotary tillage claw, and operating the accelerator lever to transmit the drive of the motor to perform the tilling work (for example, Patent Document 1).

Japanese Patent Application No. 2001-169602

However, such a walk-type tiller has a problem in that it has a vertically long structure and requires a large storage space because it has a handle at one end of a long frame and a rotary tiller at the other end.
Therefore, an object of the present invention is to provide a walking type work machine that can be stored compactly.

For this reason, the invention according to claim 1 is provided with a handle provided with an operation means for operating the drive of the drive unit,
A frame provided with one end of the handle;
A working unit attached to the other end of the frame;
In the walking type work machine that operates by operating the operation means to transmit the drive of the drive unit,
A rotating portion that can be folded at an intermediate portion of the frame is provided.

  According to a second aspect of the present invention, in the walking work machine according to the first aspect, the rotating portion is a screw that cannot be folded at an intermediate portion of the frame by tightening.

  According to a third aspect of the present invention, in the walking type working machine according to the first aspect, the frame is foldable via a rotating portion and abuts against a stopper when extended.

  According to the first aspect of the present invention, it is provided with a handle provided with an operation means for operating the drive of the drive unit, a frame provided with the handle at one end, and a working unit attached to the other end of the frame. In the walking type working machine that operates by operating the operating means to transmit the drive of the driving unit, and includes a rotating part that can be folded at the middle part of the frame, when storing the walking type working machine, It is possible to provide a walking type working machine that can fold the frame around the rotating portion and can be stored compactly with a small storage space.

  According to the second aspect of the present invention, since the rotating portion is a screw that makes the middle portion of the frame unfoldable by tightening, the middle portion of the frame can be easily made unfoldable with a simple configuration. it can.

  According to the third aspect of the present invention, the frame can be folded via the rotating portion, and abuts against the stopper at the time of expansion. Therefore, when the folded frame is expanded, one frame abuts against the stopper. The frame position when extended can be easily positioned with a stopper. Further, it is possible to prevent scratches and distortions caused by the frames coming into contact without directly contacting the other frame.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a walking type tiller as an example of the walking type working machine of the present invention, and FIG. 2 is a side view.
The walking type tiller 11 of this example includes an upper frame 20A in which a metal pipe is formed in a substantially U shape, and a metal pipe attached via the upper frame 20A, a screw (rotating part) 21A and a nut 21B. And a lower frame 20B formed in a substantially U shape. A handle 12 and a switch lever 13 are provided in the center of the upper frame 20A. In addition, a plow portion (working portion) 19 is provided at both ends of the lower frame 20B, a battery, a control portion, etc. are built in an intermediate portion of the lower frame 20B, and a main switch is provided on the surface. Install with the bolts. The upper frame 20A and the lower frame 20B constitute the frame 20.

  Specifically, the upper frame 20A and the lower frame 20B are attached as follows. That is, both ends of the upper frame 20A are bent in the width direction and squeezed, and both ends are crushed and a through hole is opened at substantially the center thereof. On the other hand, through-holes are provided on the distal end side from the two bent portions of the lower frame 20B formed in a substantially U shape. Then, the through hole of the upper frame 20A and the through hole of the lower frame 20B are aligned, and the screw 21A is inserted from the inside. A nut 21B is screwed to the tip of a screw 21A that penetrates outside the upper frame 20A. In this way, the upper frame 20A and the lower frame 20B are attached.

The tilling unit 19 includes a drum-shaped rotor 14 and a tilling claw 15 attached to three stays 15 a formed on the peripheral surface of the rotor 14 with bolts or the like. In addition, in FIG. 1, a part of tilling nail | claw 15 provided in the surrounding surface is shown.
A motor (drive unit) for rotating the rotor 14 is fixed inside the rotor 14, and a drive shaft 14a extends from the motor. Male screws are formed at the ends of the two drive shafts 14a. Both ends of the lower frame 20B are crushed, and an opening O is formed at substantially the center thereof. The drive shaft 14a is attached to the opening O, the nut 16 is screwed from the tip of the drive shaft 14a, and the rotor 14 is attached to the lower frame 20B.

In order to store the walk-type field cultivator 11 configured in this way, first, the two screws 21A in the middle part of the frame 20 are loosened, and the upper frame 20A is rotated in the direction of the arrow in FIG. Rotate to fold and return to the retracted state. Next, the upper frame 20A is fixed to the lower frame 20B in a retracted state by tightening the screws 21A. In this state, it is transported to a storage place and stored.
Moreover, when using the walk-type tiller 11 stored in the storage location, the walk-type tiller 11 is transported from the storage location to a desired set position. Next, the screws 21A on both sides are loosened, and the upper frame 20A is rotated in the direction opposite to the arrow in FIG. Then, the upper frame 20A is fixed to the lower frame 20B in an extended state by tightening the screws 21A. As a result, the frame 20 cannot be folded.
Further, the sheet is conveyed to the cultivated land, the main switch (not shown) is turned on, the handle 12 is put on and the switch lever 13 is gripped. Then, the motor rotates and the tilling claw 15 rotates. In this state, the operator pushes the walking type tiller 11 to plow the cultivated land.

  As described above in detail, the walking tiller 11 of the present invention has a handle (handle) 12 provided with a switch lever (operation means) 13 for operating the drive of a motor (drive unit), and the handle 12 at one end. The frame 20 provided on the other end of the frame 20 and a tilling portion (working portion) 19 attached to the other end of the frame 20 are operated to operate the switch lever 13 to transmit the drive of the motor. A screw (rotating part) 21A that can be folded at the intermediate part is provided. In addition, the middle portion of the frame 20 cannot be folded by tightening the screws 21A.

  In addition, you may comprise a walk-type tiller as shown in FIG. That is, the walk-type tiller 31 has an upper frame 40A in which a metal pipe is formed in a substantially U-shape, and a metal pipe attached via the upper frame 40A, a screw (rotating part) 42 and a nut. And a lower frame 40B formed in a U-shape. A handle 12 and a switch lever 13 are provided in the center of the upper frame 40A. In addition, a plow portion (working portion) 19 is provided at both ends of the lower frame 40B, a battery, a control portion, etc. are built in an intermediate portion of the lower frame 40B, and a main switch is provided on the surface. Install with the bolts. The upper frame 40A and the lower frame 40B constitute the frame 40.

The upper frame 40A and the lower frame 40B are attached in detail as follows. That is, a through hole is opened at each end of the upper frame 40A. On the other hand, the attachment portion 40BB is provided on the tip side from the two bent portions of the lower frame 40B formed in a substantially U-shape. The attachment portion 40BB is a steel plate provided with a through hole, and is fixed to the lower frame 40B by welding or the like. Then, the screw 42 is inserted from the outside by aligning the through hole of the upper frame 40A and the through hole of the attachment portion 40BB of the lower frame 40B. A nut 43 is screwed to the tip of the screw 42 that has penetrated inside the upper frame 40A. In this way, the upper frame 40A and the lower frame 40B are attached. On the other hand, stoppers 41 are respectively attached by screws or the like between the two bent portions of the frame and the attachment portion 40BB. The stopper 41 is made of a hard resin and prevents the upper frame 40A from coming into direct contact with the lower frame 40B, and also enables proper positioning when the upper frame 40A is extended. is there. The stopper 41 may be made of hard rubber.
In addition, since the structure of the tilling part 19 is the same as that of the above-mentioned example, description is abbreviate | omitted.

In order to store the walk-type field cultivator 31 configured as described above, first, the two screws 42 in the middle part of the frame 40 are loosened, and the upper frame 40A is rotated around the screw 42 as the center of rotation in the direction of the arrow in FIG. Rotate to fold and return to the retracted state. Next, the screw 42 is tightened to fix the upper frame 40A to the lower frame 40B in a retracted state. In this state, it is transported to a storage place and stored.
Moreover, when using the walk-type tiller 31 stored in the storage place, the walk-type tiller 31 is transported from the storage place to a desired set position. Next, the screws 42 on both sides are loosened, and the upper frame 40A is rotated in the direction opposite to the arrow in FIG. Then, the upper frame 40A is fixed to the lower frame 40B in an expanded state by tightening the screws 42.
Further, the sheet is conveyed to the cultivated land, the main switch (not shown) is turned on, the handle 12 is put on and the switch lever 13 is gripped. Then, the motor rotates and the tilling claw 15 rotates. In this state, the operator pushes the walking type tiller 11 to plow the cultivated land.
That is, the upper frame 40A and the lower frame 40B can be folded via the screw 42, and abut against the stopper 41 when extended.

  In the above-described example, the walking type tiller used for farm work has been described as an example of the walking type working machine. However, the present invention is not limited to this and may be applied to a walking type lawn mower.

It is a front view which shows the walk type tiller as an example of the walk type work machine of this invention. It is a side view of the walking type tiller shown in FIG. It is a side view when the walking type tiller shown in FIGS. It is a front view which shows another example of a walking type tiller. It is a side view of the walking type tiller shown in FIG. FIG. 6 is a side view of the walking type tiller shown in FIGS.

Explanation of symbols

11,31 Walk type tiller (walking type work machine)
12 Handle 13 Switch lever (operating means)
14 rotor 14a drive shaft 15 tilling claw 15a stay 19 tilling part (working part)
20, 40 frame 20A, 40A Upper frame (frame)
20B, 40B Lower frame (frame)
21A, 42 Screw (rotating part)
21B, 43 Nut 22 Case 40BB Mounting part 41 Stopper O Opening

Claims (3)

A handle provided with an operation means for operating the drive of the drive unit;
A frame provided with one end of the handle;
A working unit attached to the other end of the frame;
In the walking type work machine that operates by operating the operation means to transmit the drive of the drive unit,
A walking work machine comprising a rotating part that can be folded at an intermediate part of the frame.   The walking work machine according to claim 1, wherein the rotating part is a screw that cannot be folded at an intermediate part of the frame by tightening. The walking work machine according to claim 1, wherein the frame is foldable via a rotating part and abuts against a stopper when extended.

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