JPH10306737A - Engine stop switch structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a n engine stop switch structure in which efficient work can be achieved and an operating part can be performed excellently by covering the operating part for a stop switch with an operating cover. SOLUTION: An operating part cover 8 is provided in such a manner as to surround the outside of an operating part 7 of a stop switch 5 for stopping an engine to be mouthed on a travel work machine. In a stop switch structure for an engine, the operating part cover 8 can be vertically moved at a position at which the operating part 7 is covered and at a position at which the operating part 7 is exposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stop switch structure for an engine mounted on an agricultural work machine, a construction work machine, or the like.

[0002]

2. Description of the Related Art Generally, a stop switch for stopping an engine is mounted on a handle of a traveling work machine such as a tilling work machine, and a button-type operation portion of the stop switch is operated by pressing or tapping. The machine is configured to stop immediately during operation.

[0003]

However, the stop switch according to the above-described conventional configuration is in an exposed state in which the operating portion protrudes above the handle. Therefore, when the traveling work machine is used in an orchard or the like, a contact object such as a branch of a fruit tree may come into contact with the operation unit of the stop switch, and as a result, the operation unit is pressed by the branch, and as a result, the engine is operated during operation. This causes problems such as suddenly stopping the operation, which makes the work inefficient.

An object of the present invention is to provide an engine stop switch structure which does not easily stop the engine even when the branches or the like come into contact as described above.

[0005]

An engine stop switch structure according to the present invention is a stop switch for stopping an engine mounted on a traveling work machine or the like, wherein an operation section cover is provided outside an operation section of the stop switch. The operation unit cover is configured to be vertically movable between a position where the operation unit is covered and a position where the operation unit is exposed.

Also, the engine is stopped by moving the operation unit up and down at the center of the operation unit cover.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a tiller-type tilling work machine, which is an example of a traveling work machine. An engine 2 is mounted on a body 1b including a transmission case or the like having a pair of left and right running wheels 1a. According to the present invention, the rotary tilling device 3 is integrally mounted with the same configuration as the device, and the handle 4 is extended rearward, and the handle 4 is used to stop the engine 2. The stop switch 5 (FIG. 2) is provided. Reference numeral 6 denotes a weight portion for adjusting the balance of the fuselage provided at the front portion of the fuselage 1b.

Next, the configuration of the stop switch 5 is shown in FIGS.
This will be described with reference to FIG. The stop switch 5 is attached to the handle 4 by attachment means such as welding or fastening. As shown in FIG. 3, a switch base 7 a having a push-button type operation unit 7 is supported on a mounting base 50 fixed to the handle 4, and the operation unit cover 8 is urged and supported via a spring 51 so as to be vertically movable. doing.

That is, the switch portion 7a is mounted at the center of a mounting base 50 having its lower portion fixed to the handlebar 4 and pushes the operating portion 7 provided on the head to stop the engine via the harness 7b. Up and down operation is possible. The operation section cover 8 is formed in a downward bowl shape, and an opening 8a is provided in the center thereof to position the operation section 7 in the opening 80. The operation unit cover 8 is attached to a spring guide 53 attached to an attachment base 50 by an attachment screw 52.
A plurality of guides 1 are provided on the mounting base 50 so as to be vertically movable.

The operation unit 7 is covered with the operation unit cover 8 and the upper surface of the operation unit 7 substantially flush with each other in a side view, and this structure allows the operation unit 7 to be freely pressed. In addition, even if the operating unit 7 comes into contact with a contact object such as a branch, the operating unit 7 is not easily pushed and the accidental stop of the engine during the operation can be prevented. ing.

Incidentally, as shown in FIG.
A spring guide 53 provided on the back side of the operation unit cover 8 is slidably fitted into a guide tube 55 erected on the mounting base 50, and a spring is provided between the operation unit cover 8 and the guide tube 55. It is also possible to provide a vertical push operation by interposing the 51. With the present invention configured as described above, when the engine 2 is stopped during plowing or traveling work, the operation unit 7 is pushed and the engine 2 can be stopped freely as in the prior art. In this case, when the operation unit cover 8 is touched by a pushing operation, the spring 51 is pressed.
4 moves downward as shown by the dotted line in FIG.
Does not hinder the operation of

When the traveling work machine 1 is used for work in an orchard or the like, when the branch of a fruit tree or the like comes into contact with the stop switch 5, the operation unit 7 covers the outer periphery with an operation unit cover 8. The operation unit 7 can be restricted or prevented from being directly pushed by a contact object such as a branch by the operation unit cover 8, thereby preventing a trouble such as an unexpected stop of the engine 2 during the operation. There is an advantage that work can be performed efficiently and comfortably.

Reference numeral 9 shown in FIG. 2 denotes a traveling clutch lever provided on the handlebar 4 behind the stop switch 5, and the clutch is turned on by tilting from a standing state shown by a solid line in FIG. Can be done.
In addition, as shown in the illustrated example, if the rear surface of the traveling clutch lever 9 is used to display an instruction manual for handling or a mark 9a for warning or the like in this portion, the visual effect and the display space are advantageous. Can be

In the weight portion shown in FIG. 1, the weight 60 is supported on the body 1b via an appropriate slide mechanism. The forward / backward adjustment of the weight 60 is performed by an operation provided on the hand side of the handle 4. It is operably provided by a lever 61. Reference numeral 62 denotes a knob for positioning the weight 60. The weight for weight adjustment 60
May be configured as shown in FIG. 6 and FIG.

That is, the weight 60 shown in FIG. 6 is slidably supported by a rail 63 protruding forward from the body 1b, and is urged and supported in a retraction direction by a pull spring 65 fixed to the body 1b. doing.
By employing this configuration, the weight 60 can automatically perform weight adjustment corresponding to the inclination of the body 1b in the front-back direction.

FIG. 7 shows an example in which a plurality of weights 60 are prepared by mounting a plurality of weights via a fixture 66 so that the weight can be adjusted. In this case, the weights 60 are upper and lower joint surfaces. It is preferable that the positioning is performed by fitting the 67 in a concave and convex shape. Further, the weight 60 may be formed in a hollow body, and water or sand may be sealed in the hollow body through an opening / closing plug 68.

[0017]

According to the above-described engine switch stop structure of the present invention, when the traveling work machine works in an orchard or the like, a contact object such as a branch may come into contact with the stop switch. However, the operation unit is protected by being covered with the operation unit cover. Therefore, it is possible to prevent the engine from being stopped unexpectedly during the operation, and when the operation unit is operated to stop the engine, the operation unit cover can be moved, so that the stop operation can be performed satisfactorily without hindrance. be able to.

Further, by providing the operation unit at the center of the operation unit cover, it is possible to cover all directions well.

[Brief description of the drawings]

FIG. 1 is a side view of a traveling work machine.

FIG. 2 is a perspective view of a handle.

FIG. 3 is a side sectional view of a stop switch.

FIG. 4 is a back sectional view of a stop switch.

FIG. 5 is a side sectional view showing another embodiment of the stop switch.

FIG. 6A is a side view of the weight, and FIG. 6B is a side view showing the operation of FIG.

FIG. 7 is a side view showing another configuration of the weight.

[Explanation of symbols]

 Reference Signs List 1 traveling work machine (tiling work machine) 2 engine 5 stop switch 7 operation section 8 operation section cover

Claims (2)

[Claims] 1. An engine 2 mounted on a traveling work machine 1 or the like.
In the stop switch for stopping the operation, an operation unit cover 8 is provided outside the operation unit 7 of the stop switch 5, and the operation unit cover 8 is configured to be vertically movable between a position where the operation unit 7 is covered and a position where the operation unit 7 is exposed. Engine stop switch structure. 2. The engine stop switch structure according to claim 1, wherein the engine 2 is stopped by moving the operation unit 7 up and down at the center of the operation unit cover 8.