JPH09263271A - Handle structure for walking type power working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent to pinch a hand when a clutch lever is superposed on a handle, in a handle structure of a walking type power working machine furnishing a loop type handle, and a loop type clutch lever superposed with the loop type handle. SOLUTION: A loop type handle 1; and a loop type clutch lever 3 superposed on the handle 1; are provided (1), and at a part of the handle 1 or the clutch lever 3, escape parts 1A to prevent the abutting of both members when the clutch lever 3 is superposed on the handle 1 are formed (2). The escape parts 1A are formed to project to the rear side of the handle 1.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a management machine, a lawn mower,
Equipped with a loop-type handle attached to a walk-type power working machine such as a cultivator and an inverted U-shaped clutch lever that overlaps with this handle, so that your hands are not caught when the clutch lever is overlapped with the handle. The present invention relates to a handle structure of a walking type power working machine.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a loop type handle 1 is pivotally supported on the base end side of the handle 1, and when it is located above the handle 1 (shown by a solid line), the clutch is disengaged. An agricultural management machine including an inverted U-shaped clutch lever (so-called deadman clutch structure) 3 to which a clutch is connected when the steering wheel 1 is rotated to the handle 1 side and overlapped with the handle 1 (shown by a virtual line). Walking type power working machines such as a lawn mower and a lawn mower are well known.

[0003]

In the deadman clutch structure, when the power working machine is in the working state,
As shown by the phantom line in FIG. 3, the worker performs the work while holding the clutch lever 3 in full contact with the loop-type handle 1 and gripping the two in a superposed state. However, when the power working machine is stopped, that is, when the clutch lever 3 is operated from above the loop type handle 1 to the working state, the loop type handle 1 is held by one hand and the clutch lever 3 is held by the other hand. There is a problem that when the clutch is connected while rotating while holding it and stacking it on the loop type handle 1, the hand holding the loop type handle 1 may be caught, which may lead to an accident. .

Therefore, the operator must operate the clutch lever 3 in a state where the loop type handle 1 is not completely gripped, and such an operation is performed when the machine body is unstable, such as on a sloping ground. It was dangerous because the power working machine 2 could not be reliably supported and the handle could not be operated.

The present invention has been made in order to solve the above-mentioned problems. In the state where one hand holds the loop type handle 1 securely, the other hand holds the clutch lever 3 and the loop type handle 1 in place. You can operate without pinching your grasped hands,
It is an object of the present invention to provide a handle structure for a walk-behind power working machine that enables safe work.

[0006]

In order to achieve the above object, the present invention provides: The loop type handle 1 and the base end side of the handle 1 are pivotally supported. When the handle 1 is located above the handle 1, the clutch is disengaged, and the handle 1 is rotated to rotate the handle 1.
In a walk-type power work machine 2 comprising an inverted U-shaped clutch lever 3 to which a clutch is connected when superposed on the handle 1, or a part of the clutch lever 3,
It is characterized in that the clutch lever 3 is formed with escape portions 1A, 1B and 3A which do not come into contact with each other when the clutch lever 3 is superposed on the handle 1.

[0007] The escape portion 1A is formed so as to project rearward of the handle 1.

[0008] The escape portion 1B is characterized in that it is formed so as to protrude downward of the handle 1.

[0009] It is characterized in that the clutch lever 3 is formed with an escape portion 3A which does not come into contact with the grip 1C provided on the handle 1.

[0010]

With the above structure, the handle structure of the walking type power working machine of the present invention has the handle 1 or the clutch lever 3.
The escape portions 1A, 1B, 3A that do not come into contact with a part of the clutch lever 3 when the clutch lever 3 is superposed on the handle 1.
By forming the handle, the operator can handle 1 with one hand.
Even if the clutch lever 3 is overlapped with the handle 1 with the other hand in a state in which the clutch lever 3 is firmly gripped, the hand holding the handle 1 is not pinched by the clutch lever 3 and Can be operated stably.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings.

1 and 2, an agricultural management machine 2 (walking type power working machine) equipped with a loop type handle 1 is provided with an inverted U-shaped clutch lever 3 on the base end side of the handle 1. It is pivotal. When the clutch lever 3 is located above the steering wheel 1, the clutch is disengaged and the steering wheel 1
The clutch is adapted to be engaged when the handle 1 is rotated to the side and overlapped.

The grip portion of the handle 1 is formed with two relief portions 1A, 1A so as to project rearward. The two relief portions 1A and 1A are provided on the clutch lever 3
When they are superposed on the handle 1, they do not come into contact with each other. The grip portion of the handle 1 and the operation portion of the clutch lever 3 have rubber mounting portions 1D and 3 respectively.
B is provided.

An engine 4 is mounted on the front part of the machine body of the management machine 2, a drive pulley 5 provided on the output shaft of the engine 4, and a mission 12 provided behind the engine 4.
The transmission belt 7 is wound between the driven belt 6 and the driven pulley 6 provided on the input shaft, and a tension pulley 8 is provided on the transmission belt 7. The tension pulley 8 is connected to the base of the clutch lever 3 via a tension spring 9, a clutch wire (inner) 10 and a clutch wire (outer) 11 so that the tension pulley 8 can be operated by the clutch lever 3.

In FIG. 2, when the clutch lever 3 is located above the handlebar 1 in the upright state (solid line state), the tension pulley 8 does not press the transmission belt 7 and the clutch is disengaged. When the handle 1 is rotated to the 1 side and overlapped with the handle 1, the tension pulley 8 presses the transmission belt 7 to connect the clutch. In addition, the clutch lever 3 always has a tension spring 9
And is supported in an upright state by the clutch lever 3 rotated to the handle 1 side against the tension spring 9 and superposed on the handle 1 (state of virtual line).
Then, the work is carried out by being gripped by the hand of the worker, and when the worker releases the hand, the clutch lever 3 returns to the standing state by the spring force of the tension spring 9, and the clutch is automatically disengaged.

The power changed in the mission 12 is transmitted to the wheels 13, 13 pivotally supported on the left and right sides of the machine body to run the management machine 2, and to the rotary device 14 provided at the rear part of the machine body. Power transmission and tilling rotor 14
Rotate A. Reference numeral 15 is a gear shift lever for switching the meshing of gears in the mission 12.

Next, the operation of the management machine 2 configured as described above will be described.

Before starting the work, the operator starts the engine 4 and shifts the forward and backward movements of the machine body, the forward rotation and the reverse rotation of the rotary device 14 by using the speed change lever 15, for example, as shown in FIG.
As shown in, the left hand grips the escape portion 1A of the handle 1 on the left side, and the right hand holds the clutch lever 3 and rotates the handle lever 1 toward the handle 1 side to superimpose it on the handle 1 and grip the clutch lever 3 with the handle 1. . Then, the tension pulley 8 is pulled up by the clutch wire (inner) 10 to press the transmission belt 7, the vehicle is running with the clutch engaged, and the cultivating rotor 14A of the rotary device 14 performs the cultivating work. Done.

As described above, when the work is started, the escape portion 1A of the handlebar 1 is securely grasped by the left hand, and the clutch lever 3 is rotated to be superposed on the handlebar 1.
It is possible to carry out stable maneuvering without pinching the hand holding the escape portion 1A. To stop the work, simply release the grip of the clutch lever 3
Is returned to the standing state by the spring pressure of the tension spring 9, the tension pulley 8 is released from the transmission belt 7 and the pressure is released, the clutch is automatically disengaged, and the traveling of the airframe and the rotation drive of the tiller rotor 14A are performed. Stop.

The second embodiment of the present invention shown in FIG.
In the portion corresponding to the escape portions 1A, 1A of the handle 1,
The escape portions 1B and 1B are formed by projecting downward of the handle 1.

Also in the second embodiment, when the operator surely grasps the escape portion 1B of the handle 1 with one hand and rotates the clutch lever 3 to overlap the handle 1, the clutch lever 3 The stable steering can be performed without pinching the hand holding the escape portion 1B.

In the case of the third embodiment of the present invention shown in FIG.
Grip parts 1C and 1C wound with rubber are provided at two positions of the grip part of the loop type handle 1.
The relief portions 3A and 3A are formed in the grip portion of the clutch lever 3 corresponding to C and 1C.

In the third embodiment, the operator firmly holds the grip portion 1C of the handle 1 with one hand, and holds the escape portion 3A of the clutch lever 3 to rotate the handle 1 to overlap the handle 1. When the clutch lever 3 is turned on, the hand holding the grip portion 1C is not pinched, and stable steering can be performed.

The escape portions 1A and 1B provided in the loop type handle 1 are not limited to two locations, but may be provided in the central portion of the grip portion of the handle 1 or one location on one side. . It may be provided on both the loop type handle 1 and the clutch lever 3.

[0025]

As described above, the handle structure of the walking type power working machine of the present invention is as follows. Since the escape portions 1A, 1B, and 3A that do not come into contact with each other when the clutch lever 3 is overlapped with the handle 1 are formed in a part of the handle 1 or the clutch lever 3, at the beginning of the work, the worker can use one hand. When the clutch lever 3 is overlapped with the handle 1 by the other hand while the handle 1 is firmly gripped, the clutch lever 3 does not pinch the hand holding the handle 1. Therefore,
The walk-type power working machine 2 can be stably operated.

.. Since the escape portion 1A is formed so as to project toward the rear of the handle 1, the worker holds the escape portion 1A with his / her hand and holds the clutch lever 3 in the handle 1
Even if they are overlapped with each other, the hand does not get caught by the clutch lever 3, and the walk-type power working machine 2 can be stably operated.

[0027] Since the escape portion 1B is formed so as to protrude downward of the handle 1, the worker holds the escape portion 1B with his / her hand and holds the clutch lever 3 in the handle 1
Even if they are overlapped with each other, the hand does not get caught by the clutch lever 3, and the walk-type power working machine 2 can be stably operated.

[0028] Since the escape portion 3A that does not contact the grip 1C provided on the handle 1 is formed on the clutch lever 3, even if the operator firmly overlaps the clutch lever 3 with the handle 1 while gripping the grip 1C with his / her hand, Escape section 3
Since A is present, the hand cannot be pinched by the clutch lever 3 and the walk-type power working machine 2 can be stably operated.

[Brief description of drawings]

FIG. 1 is a perspective view of an agricultural management machine to which the present invention is applied.

FIG. 2 is a perspective view showing an operation of the handle structure of the walking type power working machine according to the present invention.

FIG. 3 is a perspective view showing an operation of a conventional handle structure.

FIG. 4 is a perspective view of the entire management machine showing a second embodiment of the present invention.

FIG. 5 is a perspective view of the entire management machine showing a third embodiment of the present invention.

[Explanation of symbols]

1 Loop type handle 1A, 1B Escape part 1C Grip part 1D Rubber mounting part 2 Agricultural management machine (walking type power working machine) 3 Reverse U-shaped clutch lever 3A Escape part 3B
Rubber mounting part 4 Engine 5 Drive pulley 6 Driven pulley 7 Transmission belt 8 Tension pulley 9 Tensile spring 10 Clutch wire (inner) 11 Clutch wire (outer) 12 Mission 13 Wheels 14 Rotary device 14A Tilling rotor 15 Shift lever

Claims (4)

[Claims] 1. A loop type handle (1) and a handle (1) which is pivotally supported on the base end side of the handle (1) and whose clutch is disengaged when positioned above the handle (1).
A walk-type power working machine (2) comprising an inverted U-shaped clutch lever (3) to which a clutch is connected when the handle (1) is rotated to the side and overlapped with the handle (1), the handle (1) Alternatively, a part (1A) of the clutch lever (3), which does not come into contact with the clutch lever (3) when the clutch lever (3) is superposed on the handle (1),
(1B), (3A) is formed, the handle structure of the walking type power working machine characterized by the above. 2. The escape portion (1A) is a handle (1).
The handle structure for the walk-type power working machine according to claim 1, wherein the handle structure is formed so as to project rearward of the vehicle. 3. The handle (1) is the relief portion (1B).
The handle structure for the walk-type power working machine according to claim 1, wherein the handle structure is formed so as to project downward. 4. The walking type power according to claim 1, wherein the clutch lever (3) is formed with an escape portion (3A) which does not come into contact with a grip (1C) provided on the handle (1). Work machine handle structure.