JP2001008516A - Hair clippers type mower and weeding by the mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To operate a hair clippers type mower in a facing forward walking. SOLUTION: In a hair clippers type mower comprising a motor 2 to be carried on an operator's back, a handling lever to be gripped by the operator and a hair clippers type reaping blade apparatus 5 attached to the tip of the handling lever 4 having hair clippers reaping blades to be driven by the power of the motor 2, the hair clippers reaping blade apparatus 5 can be located at an arbitrary position/angle in the reaping blade direction of the hair clippers reaping blade and the direction perpendicular to the reaping blade direction to the handling lever 4. The handling lever 4 is equipped with a front grip and a rear grip 29. The rear grip 29 can be located at an arbitrary position/ angle around the center of axis of the handling lever 4 and in the direction perpendicular to the handling lever.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clipper-type mower having a clipper cutting blade.

[0002]

2. Description of the Related Art There are two types of portable mowers, a rotary type and a clipper type. Of these, the hair clipper type has the features that it is safe, since the blades do not break or bounce off, it is safe, the cutting height can be uniform, and moreover, a wide range of grass can be cut at a time. I have. A hair clipper-type mower may be used for mowing the ridges of fields and fields, taking advantage of this advantage. However, in the conventional clipper-type mower used for mowing the ridge, the prime mover is mounted on the clipper blade device, and the weight is supported by the clipper blade device.

[0003]

For this reason, the weight of the clipper cutting blade device has become heavy, and the operator has taken a working mode in which the clipper cutting blade device is moved while sliding backward while rubbing. Accordingly, the labor burden on the worker increases, and the worker walks in the backward position, which is dangerous. The present invention has been made to solve such a problem, and an object of the present invention is to enable a clipper-type mower to move forward.

[0004]

SUMMARY OF THE INVENTION Under the above-mentioned problems, the present invention provides a motor driven by an operator, an operating rod held by the operator,
A clipper-type mowing machine comprising a clipper cutting blade device attached to the tip of the operating rod and having a clipper cutting blade driven by the power of the prime mover. It can take any position and angle in the direction and the direction perpendicular to this direction, the front grip and the rear grip are attached to the operating rod,
The rear grip is provided with a clipper-type mower that can take an arbitrary position and an angle about the axis of the operating rod and a direction perpendicular to the operating rod.

[0005] There are flat and sloping lands on the levee of a field or a field. However, simply cutting down the weight of the hair clipper cutting device by using a motor as a backpack cannot perform mowing work by forward walking. In addition to this, the front and rear grips, whose position and angle can be adjusted, are attached to the operating rod, and the clipper cutting blade device can be changed in a wide range of postures before the mowing work can be performed with forward walking. However, this is made possible by the present invention taking the above-described means.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a clipper-type mower showing an example of the present invention, FIG. 2 is a side view, and FIG.
FIG. 1 is a cross-sectional view of A. The clipper-type mower includes a prime mover 2 mounted on a backing frame 1 and the like, and an operating rod 4 serving as a transmission tube and a base connected to the prime mover 2 by a flexible pipe 3 and the like.
And a clipper cutting blade device 5 provided at the tip (lower end) of the operating rod 4.

FIG. 4 is a partial sectional plan view showing the relationship between the operating rod 4 and the clipper cutting blade device 5, and FIG. 5 is a partially sectional side view of the same, in which a transmission cylinder 6 is fitted to the lower end of the operating rod 4. In addition, an intermediate case 7 is attached to the transmission cylinder 6 at right angles, and the clipper cutting blade device 5 is attached to the intermediate case 7 at right angles. In this case, the transmission cylinder 6 and the intermediate case 7 are tightened with a predetermined tightening force by the intermediate shaft 8 that passes through the two, and the tightening force is loosened or the intermediate case 7 is tightened with a force exceeding the tightening force. By turning the case 7, the intermediate case 7 can be rotated and fixed at an arbitrary angle with respect to the transmission cylinder 6.

On the other hand, the operating rod 4 on the side of the transmission cylinder 6 has a knob 9
A ring 10 fixed by tightening is inserted, and the ring 10 and the intermediate case 7 are connected by a link 11. Therefore, the knob 9 is loosened and the intermediate case 7 is turned by a certain angle around the intermediate shaft 8 (the ring 10
Is changed via the link 11), and by tightening the knob 9 at that position, the phase (direction) of the intermediate case 7 with respect to the operating rod 4 can be changed.

The clipper cutting blade device 5 has a cutting blade case 12 joined to the intermediate case 7, and the cutting blade case 12 can also be changed to an arbitrary angle with respect to the intermediate case 7. ing. That is, the drive shaft 13 passes through the interior from the intermediate case 7 to the cutting blade case 12, and the cutting blade case 12 can rotate around the drive shaft 13.

FIG. 6 is a partial cross-sectional view of the mating surface of the intermediate case 7 and the cutting blade case 12. On the mating surface of the two, a pin 15 with a lever urged by a spring 14 is attached to the intermediate case 7. The cutting blade case 12 is formed with a large number of holes 16 into which the pins 15 with levers can enter.

Then, if the pin 15 with lever is pulled out from the hole 16 and the cutting blade case 12 is turned by a desired angle and the pin 15 with lever is inserted into the hole 16 again, the direction (phase) of the cutting blade case 12 can be changed. Can be. The turning surface of the intermediate case 7 and the turning surface of the cutting blade case 12 are set to be perpendicular to each other. Therefore, the orientation of the clipper cutting device 5 with respect to the operating rod 4 can take any three-dimensional range. In other words, the clipper cutting blade device 5
Can take any position and angle with respect to the operating rod 4 in the direction of the cutting blade of the clipper cutting blade 19 and in a direction perpendicular thereto.

From the cutting blade case 12, an upper blade 17 and a lower blade 18 are provided.
A clipper cutting blade 19 that slides in different directions from each other protrudes. Since the structure for driving the hair clipper cutting blade 19 is already well known, detailed description here is omitted,
In short, the transmission shaft 20 inserted into the operating rod 4 and the crank disk 21 stored in the cutting blade case 12 are connected to the intermediate shaft 8 and the drive shaft 13 by a gear mechanism 22 composed of a bevel gear or a spur gear. And the crank blade 21 and the upper blade 17 and the lower blade 18 are connected to the crank rod 2 respectively.
3, 24.

Accordingly, the upper blade 17 and the lower blade 18 can reciprocate in different directions. By the way, the intermediate case 7 and the cutting blade case 12 may change their directions relatively as described above, but even in such a case, the power transmission of the gear mechanism 22 is not hindered. .

Each of the upper blade 17 and the lower blade 18 has a triangular blade portion formed before and after a central base.
The upper blade 17 and the lower blade 18 have a holding plate 25 superimposed on the upper blade 17 and are fastened with bolts 26. In this case, the upper blade 17 and the lower blade 1 where the bolt 26 is inserted
8, a long hole longer than the stroke is formed.
The sleeve 27 is fitted between the upper blade 17 and the lower blade 18. Thereby, the reciprocating motion of the upper blade 17 and the lower blade 18 is allowed, and the gap is secured (adjusted) even when the bolt 26 is tightened.

Next, the rear grip 2 is attached to the operating rod 4 described above.
8 and the front grip 29 are fitted. Rear grip 2
Reference numeral 8 denotes a rod shaped to be fastened and fixed by a knob 31 to a ring 30 fitted to the rear of the operating rod 4 and includes an accelerator lever 32 for controlling the rotation speed of the motor 2. And so on. In this case, the knob 31
When the ring is loosened, the ring 30 can freely rotate around the operation rod 4 and the angle of the rear grip 28 with respect to the operation rod 4 can be freely changed. Therefore, the rear grip 28 can take an arbitrary position and angle around the axis of the operation rod 4 and in a direction perpendicular thereto. In addition, the mounting position of the operating rod 4 in the axial direction can be changed.

On the other hand, the front grip 29 is
And is generally fixedly attached to the operating rod 4. Such a rear grip 28 and a front grip 29 are gripped by a worker's right hand or left hand to perform work. In this case, when the worker walks forward, it is determined that the rear grip exists on the front side of walking. 28, the rear grip is referred to as a front grip 29.

FIG. 7 and FIG. 8 are explanatory diagrams in the case where the grass on the levee is cut by the clipper-type mower described above.
In order to cut grass on a flat ground, the angle of the clipper cutting blade device 5 with respect to the operating rod 4 is adjusted to a state where the angle can be adjusted by the above-described adjustment operation. Next, in the forward facing state, the user grips the rear grip 28 and the front grip 29 of the operating rod 4 with the left and right hands, respectively, and confirms whether or not these can be optimally positioned and angled for smooth work.

If there is a problem, the knob 31 is loosened and the position and angle of the rear grip 28 are set to an optimum one.
In this case, the front grip 29 is fixedly provided. However, in this example, since the front grip 29 has a ring shape, it can be handled by changing the gripping position.

In this state, the mowing operation is performed while rubbing the clipper cutting blade device 5. At this time, since the worker can walk forward, the safety is ensured and the optimal mowing is performed. You can walk around the place. In the above description, the operating rod 4 is passed through the right side of the body, but may be passed through the left side (in that case, the rear grip 28 is used).
The hand holding the front grip 29 is reversed.)

The same applies to cutting grass on a slope (slope). That is, after adjusting the position and angle of the clipper cutting blade device 5, if the rear grip 28 and the front grip 29 are adjusted to the position and angle at which the work is most easily performed, the operator can walk forward and cut the grass on the slope. Can be.

[0021]

As described above, according to the present invention, it is possible to mow a ridge or the like while walking forward. Therefore, it is safe with less fatigue and the efficiency is improved. Further, since the prime mover is not mounted on the cutting blade case or the like, the weight can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of a clipper-type mower showing an example of the present invention.

FIG. 2 is a side view of a clipper-type mower showing an example of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a partial cross-sectional plan view illustrating a relationship between an operating rod and a clipper cutting blade device according to an example of the present invention.

FIG. 5 is a partial cross-sectional side view illustrating a relationship between the operating rod and the clipper cutting blade device according to an example of the present invention.

FIG. 6 is a partial cross-sectional view of a joint surface between an intermediate case and a cutting blade case showing an example of the present invention.

FIG. 7 is an explanatory view of a use state of the clipper-type mower showing an example of the present invention.

FIG. 8 is an explanatory diagram of a use state of the clipper-type mower showing an example of the present invention.

[Description of Signs] 2 Prime mover 4 Operating rod 5 Hair clipper cutting blade device 28 Front grip 29 Rear grip

Claims (2)

[Claims] 1. A clipper-type mowing machine comprising a motor carried by an operator, an operating rod gripped by the operator, and a clipper cutting blade device attached to a tip of the operating rod and having a clipper cutting blade driven by the power of the motor. In the machine, the clipper cutting blade device can take any position and angle in the cutting blade direction of the clipper cutting blade and a direction perpendicular thereto with respect to the operating rod, and the operating rod includes a front grip and A clipper-type mower in which a rear grip is attached, and the rear grip can take an arbitrary position and an angle with respect to the operating rod in a direction around the axis and in a direction perpendicular to the axis. 2. The clipper-type mower according to claim 1, wherein the front grip has a ring shape.