JPH0646256Y2 - Handle structure for brush cutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a structure of a handle mounted on a brush cutter, and more particularly to a shape of a grip attached to a tip side of a handle body.

[Conventional technology]

In the brush cutter, in the handle structure in which the handle main body extends laterally from the operating rod and the grip is fitted to the tip portion of the handle main body, the grip is a simple linear cylinder.

Japanese Utility Model Publication No. 52-154437 and Japanese Utility Model Publication No. 59-130420 disclose
It is disclosed that a grip is fitted on the operating rod, and a round handle or a rod-shaped handle protruding laterally is attached to a position of the operating rod in front of the grip. The grip of the operating rod is grasped by one hand, and the round handle or the rod-shaped handle is grasped by the other hand so that the angle holding operation of the operating rod can be easily performed.

[Problems to be solved by the device]

If the grip is a linear shape that is attached to the tip of the handle body, the grip angle for the handle is 1
Since it is limited to individual pieces, depending on the holding angle of the operating rod, the gripping force required to cope with the increase in the rotation moment due to the weight of the brush cutter increases, and the labor increases.

On the other hand, in the case where a round handle or a rod-shaped handle is attached to the operating rod in addition to the grip, when the operating rod is rotated around the axis, and the tip side of the operating rod is moved against the gravity of the brush cutter. When the operation rod is operated in the up-down direction so as to raise it, the force required for the hand holding the round handle or the rod-shaped handle is unilaterally larger than the force required for the grip hand, and the hand is easily tired. In addition, the structure of the round handle becomes complicated, and when the diameter becomes large, it becomes an obstacle and hinders the work.

An object of the invention of claim 1 is to provide a handle structure for a brush cutter that can be easily gripped regardless of the holding angle of the operating rod and can balance the left and right gripping forces required for holding the angle of the operating rod. That is.

An object of the invention of claim 2 is to provide a handle structure for a brush cutter capable of selecting or maintaining a gripping angle of a grip in accordance with an operator's preference regardless of an arbitrary holding angle of an operating rod. .

[Means for Solving the Problems]

The invention will be described using the reference numerals of the drawings corresponding to the embodiments.

In the handle structure for the brush cutter according to claim 1, the handle body (26) is fixed to the operating rod (12) and projects to both sides from the operating rod (12). Then, the grips (28, 28b, 36) are attached to the tip portion (3) of the handle body (26).
Fitting part (32) fitted to (0) and this fitting part (3
2) has a protruding portion (34, 38) that protrudes in a substantially right-angled direction.

In the handle structure for the brush cutter according to claim 2, the fitting portion (32)
Is rotatably fitted in the tip portion (30).

[Action]

According to the invention of claim 1, the operator grips the grip (28, 2) so that the holding angle of the operating rod (12) is appropriate according to the working situation.
Both or one of the fitting portion (32) and the protruding portion (34, 38) of 8b, 36) is gripped. For example, when cutting a hard object, the fitting portion (32) and the protruding portion (34, 38) are respectively grasped by one hand and the other hand, and the hands grasping the protruding portion (34, 38) are pushed forward to fit. Pull backwards with the hand holding the mounting part (32).

According to the second aspect of the present invention, when performing the mowing work on a sloped ground, the worker has to fit the fitting portion (3) of the grip (28, 28b, 36).
2) is rotated relative to the tip portion (30) of the handle body (26) so that the protruding portions (34, 38) can be easily grasped at an angle according to one's preference. Grips (28,2
8b, 36) may be swung to the left or right around the waist while the upper body is swung to the left or right while lightly gripping the operation rod (12).
In this case, the fitting portion (32) of the grip (28, 28b, 36) is still in the handle body (26) even when the operating rod (12) is swinging left and right.
Rotate relative to the tip (30) of the grip (28,2
The protruding portions (34, 38) of 8b, 36) maintain a predetermined angle.

〔Example〕

 The present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 3 is a perspective view schematically showing the entire brush cutter 10.
The brush cutter 10 includes a long operating rod 12, an engine power unit 14 connected to the upper end of the operating rod 12, a gear device 16 connected to the lower end of the operating rod 12, and a lower surface of the gear device 16. The cutting blade 18 is provided and is rotated by the rotational power transmitted from the engine power unit 14 through a shaft (not shown) in the operating rod 12 and a gear (not shown) of the gear device 16. The protective cover 20 is attached to the tip of the operating rod 12 so as to cover the rear of the cutting blade 18, and prevents small stones or the like from colliding with the cutting blade 18 and scattering toward the operator. The handle 22 is provided with a handle main body 26 that is fixed to the operating rod 12 at the central portion and extends laterally from the operating rod 12 and a T-shaped grip 28 that is attached to the tip end side of the handle main body 26. The throttle lever 24 is attached to the inclined portion of the handle main body 26 and adjusts the opening degree of the throttle valve of the engine power unit 14.

FIG. 1 is an enlarged view of the handle 22, and FIG. 2 is a view of the tip end portion of the handle 22 of FIG. 1 viewed from the II direction. Handle body
26 has a horizontal portion 30 on the tip side. The T-shaped grip 28 has a fitting portion 32 fitted and fixed to the horizontal portion 30.
And a vertical portion protruding vertically from the end of the fitting portion 32
And 34.

The operation of the embodiment will be described.

The operator adjusts the holding angle of the operating rod 12 according to the work situation so that the fitting portion 32 and the vertical portion of the T-shaped grip 28 can be adjusted.
Grasp both or one of the 34. For example, when cutting a hard object, the fitting portion 32 and the vertical portion 34 are respectively gripped by both hands, the hand holding the vertical portion 34 pushes it forward, and the hand holding the fitting portion 32 pulls it backward.

FIG. 4 is a view showing the handle 22 provided with the L-shaped grip 36. The L-shaped grip 36 has a fitting portion 32 that is fitted and fixed to the handle body 26, and a hanging portion 38 that hangs at a right angle from the end of the fitting portion 32. The operator grips either or both of the fitting portion 32 and the hanging portion 38 of the L-shaped grip 36 so that the holding angle of the operating rod 12 becomes appropriate according to the working situation.

FIG. 5 shows a handle 2 having a rotatable T-shaped grip 28b.
FIG. The circular plate 40 has a horizontal portion at a position corresponding to the length of the fitting portion 32 from the tip of the horizontal portion 30.
It is fixed to 30 by welding. Instead of the circular plate 40, it is also possible to fit an E-ring on the horizontal portion 30. The T-shaped grip 28b has the same shape as the handle 22 of FIGS. 1 and 2, but the fitting portion 32 of the T-shaped grip 28b is
It is loosely fitted in the horizontal portion 30 and is rotatable with respect to the horizontal portion 30. The recess 42 is formed in the central portion of the outer side surface of the vertical portion 34 of the T-shaped grip 28b, and the fitting portion 32 is attached to the circular plate 40.
After fitting in the horizontal portion 30 until it comes into contact with the
Fit in the location of the horizontal portion 30 in the recess 42, and
The T-shaped grip 28b is prevented from falling off the horizontal portion 30.
In the state where the T-shaped grip 28b is fitted in the horizontal portion 30, the end of the horizontal portion 30 is retracted inward from the outer side surface of the vertical portion 34 of the T-shaped grip 28b, so that the end of the horizontal portion 30 is in operation during work. Care is taken not to hit the hands of others.

With the handle 22 of FIG. 5, when performing mowing work on a sloped ground, the operator rotates the fitting portion 32 of the T-shaped grip 28b relative to the horizontal portion 30 of the handle main body 26 and adjusts it to his or her preference. Accordingly, the vertical portion 34 is set at an angle that facilitates gripping. When mowing grass, the operating rod 12 may be swung left and right by swinging the upper body left and right around the waist while lightly gripping the T-shaped grip 28b. In this case, the fitting portion 32 of the T-shaped grip 28b rotates relative to the horizontal portion 30 of the handle body 26 even when the operating rod 12 swings left and right, and the vertical portion 34 of the T-shaped grip 28b keeps a predetermined angle. maintain.

[Effect of device]

In the invention of claim 1, the grip gripped by the operator has a fitting portion fitted to the distal end portion of the handle body, and a protruding portion that projects from the fitting portion in a substantially perpendicular direction,
The operator can grip one or both of the fitting portion and the protruding portion according to the angle held by the operating rod. Therefore, regardless of the holding angle of the operating rod, the grip can be gripped at an angle that is easy to grip. Further, since the operating force is evenly applied to both hands, fatigue can be reduced.

According to the second aspect of the present invention, the fitting portion of the grip rotates relative to the tip portion of the handle body, so that the protrusion portion of the grip can be angled according to the operator's preference despite the change in the holding angle of the operating rod. Since it can be selected and maintained, it becomes easier to grip the grip.

[Brief description of drawings]

The drawings relate to an embodiment of the present invention, FIG. 1 is an enlarged view of the handle, FIG. 2 is a view of the tip of the handle of FIG. 1 as seen from the direction II, and FIG. 3 is a schematic view of the entire brush cutter. Perspective view,
FIG. 4 is a view showing a handle having an L-shaped grip, and FIG.
The figure shows a handle with a rotatable T-shaped grip. 10 …… Mower, 12 …… Control rod, 22 …… Handle, 26 ……
Handle body, 28, 28b ... T-shaped grip (grip),
30 …… Horizontal part (tip part), 32 …… Fitting part, 34 ……
Vertical part (protruding part), 36 …… L-shaped grip (grip), 38 …… Hanging part (protruding part).

Claims (2)

[Scope of utility model registration request] 1. A handle main body (26) is fixed to an operating rod (12) and protrudes from the operating rod (12) to both sides, and a grip (28, 28b, 36) is attached to the handle main body (2).
A fitting part (32) fitted to the tip part (30) of 6),
A handle structure for a bush cutter, comprising: a protruding portion (34, 38) protruding from the fitting portion (32) in a substantially right-angled direction. 2. The fitting portion (32) is the tip portion (30).
It is rotatably fitted to the shaft.
Handle structure for the brush cutter described.