JP3083075B2 - Brush cutter hanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger for a brush cutter.

[0002]

2. Description of the Related Art There are well-known brush cutters in which a cutting blade is attached to a leading end of a rod-shaped main pipe, an engine is attached to a rear end, and the main pipe is hung by a shoulder band with the shoulder hung on the shoulder. FIG. 5 is an explanatory view showing the state of use of the bush cutter, in which the main pipe 10, the cutting blade 12, the engine 14, and the like are arranged in the above-described configuration. A hanging member 16 is attached to a rear portion of the main pipe 10, and a shoulder strap 18 that the worker A hangs on a shoulder is engaged with the hanging member 16. A handle 20 is also attached to the main pipe 10, and the worker A works by holding the handle 20 by hand.

[0003] In this case, since the hanger must not move on the main pipe, it is fixed directly to the main pipe, or is fixed to the main pipe by tightening. However, since the position of the hanger needs to be adjusted on the main pipe, it is easy and cost-effective.
It depends on the latter method.

[0004]

However, according to the latter method, a tool such as a screwdriver, a wrench or a spanner is used each time the hanger is fixed to the main pipe or the position is adjusted. A tightening operation must be performed. In addition, since the diameters of the main pipes are not all constant (the diameter increases as the size of the main pipe increases), it is necessary to prepare a suspending tool corresponding to the diameter. The present invention solves such a problem,
It is an object of the present invention to provide a hanging device which can cope with a difference in the diameter of the main pipe, and which can be operated quickly without requiring tools for fixing and position adjustment.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention relates to a hanger to which a shoulder band for hanging a bush cutter can be attached, and this hanger drops the main pipe of the bush cutter from above. a base having an inlet let that U-shaped groove, between the base
The spring is attached to the base so that it can
Splice the main pipe that is attached to the U-shaped groove
Lever that non-slidably clamps the U-shaped groove by the force of
And a hanger for a brush cutter.

[0006] Further, the present invention provides that the above-mentioned lever is provided in a U-shaped groove.
Release position to stand along and allow the main pipe to enter
And the main pipe overhanging the U-shaped groove
Upper arm that rotates from the clamping position to hold down
Are those having, the dead center of the biasing force of the Sprint grayed, above
Set the arm in the middle position between the release position and the clamping position, and release
The spring exceeds the dead center at the position and the clamping position.
The present invention provides a hanger in which the anti-slip member is lined on contact surfaces of the hanger, the lever and the base, each of which is in a state of being biased by the main pipe.

[0007] By employing the above means, the present invention enables the hanging member to be fastened and fixed to the main pipe only by turning the lever. At the same time, this fastening is possible even if the diameter of the main pipe is slightly different.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a hanger showing an example of the present invention, and FIG. 2 is a rear view. Hanging device 1 according to the present invention
Reference numeral 6 denotes a substantially U-shaped base 22 and a substantially L-shaped lever 24 attached to the base 22 and vertically rotated.

The base 22 connects the main pipe 10 to its U
It serves to support the character groove 22a from below by indenting it from above. In addition, one of the upright walls 22b of the base 22
A hook 26 for engaging the shoulder strap 18 is provided on the upper surface of the shoulder strap 18.

The lever 24 rotates around a support shaft 28 provided laterally above the other upright wall 22c of the base 22 so that the main pipe 1 is inserted into the U-shaped groove 22a of the base 22.
0 is resiliently pressed from above, and the main pipe 10 is non-slidably pressed with the base 22.

FIGS. 3 and 4 are partial cross-sectional side views showing the operation of the base 22 and the lever 24. The lever 24 before the main pipe 10 is fitted (in this state, it is assumed that the lever 24 is at the release position). ), The upper arm 24a stands up, and the lower arm 2
4b projects into the U-shaped groove 22a of the base 22 (see FIG. 3).

At this time, the boss 24c and the escape window 2 of the base 22 are provided so that the lever 24 can maintain the release position.
2d (provided on the other upright wall 22c of the base 22 so as not to hinder the rotation of the lower arm 24b of the lever 24), a spring 30 is stretched between the bottom surface of the lever 24 and the lever 24 in the release position. Sometimes, the spring 30 is elastically biased beyond the dead center (see FIG. 3).
Further, to prevent the lever 24 from rotating beyond the release position,
A stopper 32 that contacts the lever 24 is provided on the other upright wall 22c of the base 22 or the like.

In this state, the main pipe 10 is connected to the base 2
2 into the U-shaped groove 22a. Then, the main pipe 10 pushes down the lower arm 24b of the lever 24 and moves downward. During this time, the lever 24 rotates clockwise around the support shaft in FIG. 3 and the like. However, when the lever 30 exceeds the dead center of the spring 30, the lever 24 rotates spontaneously and the upper arm 24a presses the main pipe 10 from above. Then, it is clamped by the base 22.

This state of the lever 24 (referred to as being in the clamping position) is maintained forever by the biasing action of the spring 30. The pinching pressure at this time is the main pipe 10
Is set to such a degree that does not slide, but in order to achieve this more reliably, it is necessary to line a non-slip material 34 such as rubber with a large coefficient of friction on the contact surface of the lever 24 and the base 22 with which the main pipe 10 abuts. is there.

When removing the main pipe 10, the reverse operation is performed. That is, the lever 24 is pulled to
When the lever 24 is turned counterclockwise to the release position, the upper arm 24a is released and the main pipe 10 can be pulled out. The rotational force applied to the a can be well until dead point of the spring 30, the release position spontaneously pivoted beyond it (see FIG. 4). In addition, the rotation of the lower arm 24b of the lever 24 at this time has a function of flipping the main pipe 10 upward. In addition, a knob 36 may be provided on the back surface or the like of the lever 24 to make it easier to pull.

The same operation is performed when the position of the main pipe 10 is changed. However, in this case, the main pipe 10
All that is required is to loosen the lever 24 to the extent that.

The above description is an example, and the present invention is not limited to this. For example, a mechanism for moving over the dead center of the spring is not always necessary, and a spring for maintaining the lever at the clamping position may be provided. That would be). Also, the form of the spring may be such that a torque spring is wound between the boss and the base.

[0018]

As described above, since the present invention has been described above, the hanging member can be fastened and fixed to the main pipe only by rotating the lever. Therefore, the operation can be performed quickly without tools. Further, since the fastening by the hanging tool can be performed even if the diameter of the main pipe is slightly different, the hanging tool can be shared.

[Brief description of the drawings]

FIG. 1 is a side view of a hanger showing an example of the present invention.

FIG. 2 is a rear view of the hanging device showing an example of the present invention.

FIG. 3 is a partial cross-sectional side view of a hanger showing an example of the present invention.

FIG. 4 is a partial cross-sectional side view of a hanger showing an example of the present invention.

FIG. 5 is an explanatory diagram showing a use state of the brush cutter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main pipe 16 Hanging tool 18 Shoulder band 22 Base 24 Lever 30 Spring 34 Non-slip material

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Fujita 482-1 Otatami, Okayama City, Okayama Pref. Nikkali Co., Ltd. (56) References JP-A-4-197106 (JP, A) Japanese Utility Model Application No. Sho 59-87220 (JP) , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 34/42-34/86

Claims (3)

(57) [Claims] 1. A hanger for a shoulder belts can engage wear hanging the brush cutter, the hanger includes a base having a U-shaped groove Ru is recessed from the top of the main pipe of the bush cutter, Baie
Spring is stretched between the base and the base is turned vertically
Main pie movably mounted in U-groove
Squeezed into the U-shaped groove by the force of the spring
A hanger for a brush cutter, comprising: 2. The lever is raised along the U-shaped groove and is
Opening position that allows the pipe to enter, and tensioned in the U-shaped groove
Hold the main pipe that was pulled out and invaded from above
Having an upper arm that pivots over the pressure position.
And the dead point of the biasing force of the spring is
Set to a middle position between the pinching position and the release position and the pinching position.
Now, the springs are biased beyond the dead center
Hanger of the bush cutter according to claim 1, characterized in that the. 3. A hanger for a brush cutter according to claim 1, wherein a non-slip material is lined on contact surfaces of the lever and the base, each of which contacts a main pipe.