JPS6255272A - Operating device for walking type power working machine - Google Patents

Abstract

PURPOSE:To reduce the number of parts by arranging individual operating members of a brake mechanism, a clutch mechanism, etc. on one side of right and left handles and covering the connection place between these operating members and connecting members of the brake mechanism, clutch mechanism, etc. with a single cover. CONSTITUTION:A throttle lever 48, clutch brake lever 53, an emergency button, etc. are concentratively arranged on the left handle pipe 14 side. These various operating members 48, 53, the connection plate of cables 71-73, and the fitting place to the handle pipe 14 side are convered with a single cover 91. According to this constitution, the number of parts can be reduced by commonly using a bracket 75 for arranging various cables 71-73, and the structure can be simplified and the appearance can be improved.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an operating device for a walking power working machine.

(Prior technology) Transport vehicles, lawn mowers, etc. that have left and right handles on the rear of the machine
In various walk-behind power working machines such as snow blowers and tillers, brake mechanisms and clutch mechanisms are generally used.

Each operating member of the operating system for operating the throttle valve and the like is distributed and arranged at various locations on the left and right handlebar sides.

(Problem to be Solved by the Invention) For this reason, conventional operating devices for walk-behind power working machines require brackets for attaching each operating member to various locations on the handle side, and connections for connecting to the brake mechanism, clutch mechanism, throttle valve, etc. It requires a large number of brackets for arranging components at various locations on the handle side, covers to cover the connection points between the operating member and the connecting member, etc., and the structure is complicated due to the large number of parts, and there are also problems in that the appearance cannot be improved. Ta.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide an operating device for a walking power working machine that can reduce the number of parts, have a simple structure, and improve the appearance. is to provide.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention centralizes each operating member of the operating system for operating the brake mechanism, clutch mechanism, throttle valve, etc. on one side of the left and right handles. The present invention is characterized in that the connecting members connected to the brake mechanism, clutch mechanism, throttle valve, etc., and the connection points of each of the operating members are covered with a single cover.

(Function) Various operating members are concentrated on one side of the left and right handles, and brackets for mounting operating members and brackets for connecting members are shared, reducing the number of parts and simplifying the structure. Moreover, by covering these with a single cover, the appearance of the operating device is made compact and the appearance is improved.

(Example) Hereinafter, a case will be described in which an example of the present invention is applied to an operating device for a crawler-type carrier.

FIG. 1 is a side view of the crawler-type transport vehicle, FIG. 2 is a side view of the handle portion, FIG. 3 is a plan view thereof, and FIG. 4 is a perspective view thereof.

(1) is a crawler-type transport vehicle, (2) is a drive wheel, and (3).

(3) and (4) are driven wheels, (5) is a crawler, and the body frame (7) of the crawler type transport vehicle (1) is a driven wheel (3).
.

A pair of left and right vertical frames (8) that support (3) and (4)
.

(8) is provided. A loading platform (12) is provided on the vertical frames (8), (8) so as to be tiltable about the supporting shaft (11),
A handle pipe (14) extends diagonally rearward via a bracket (13) installed at the rear of the vertical frame (8), and a pair of left and right handle pipes (14) are provided.

The drive device (21) is disposed at the rear end of the vehicle body frame (7) via a bracket (22) attached to the rear end of the vertical frame (8) and the bracket (13).

The drive device (21) includes a vertical engine (31) with a vertical crankshaft, a transmission mechanism that converts the speed ratio of engine power and transmits it to the drive wheels (2), a clutch mechanism, a brake mechanism, and a side clutch mechanism. In the figure, (33) indicates the gear shift lever.

A bent portion (1) is located near the rear end of the handle pipe (14).
4a), and a grip (41) is provided at the rear end of the handle pipe that extends almost rearward from the bent portion (14a), and the side clutch lever is positioned so that it faces below the grip (41).
(42) is disposed, and the side clutch mechanism is actuated by operating the side clutch lever (42) to individually stop rotation of the left and right drive wheels (2), (2).

A cross member (45) is installed between the left and right handle pipes (14) and (-14) in the vicinity of the bent portion (14a), and a bracket (47) is installed from the left side of the cross member (45). and throttle lever (48
) are disposed, and a clutch lever (53) is disposed via brackets (51) and (52) extending from the left and right bent portions (14a) and (14a), respectively.

The throttle lever (4th) is composed of a winding board (48a) having a cable winding groove and an operating part (48b) protruding from the winding board (48a).
) is pivotally attached to the support shaft (55) of the bracket) (4?).

The clutch brake lever (53) has a roughly circular shape, and has a horizontal portion (53a) extending between the left and right handle pipes (14), and a horizontal portion (53a) bent from both ends of the horizontal portion (53a). The legs (53b) and (53b) extend, and the leg ends (53c) and (53c) are connected to each bracket (
51), (52) are pivoted to the support shafts (82), (B3).

The left leg end (53c) has an L extending inward in the vehicle width.
A letter-shaped first shaft member (B5) is provided protrudingly, and the left leg (53
b), an L-shaped second shaft member (6
6) Protrude.

The cables (71), (72), and (73) connected to the throttle valve, brake mechanism, and clutch mechanism, respectively, are connected to the outer (
71a), (?2a), (73a) are installed from the left handle pipe (14) (75
).

Inner (7) of cable (71) connected to throttle valve
1b) is connected to the winding board (48a), and the operation part (48b)
(7) Adjust the engine speed at each swing position (a) and (b) shown in Figure 2 by operation, and (c)
The configuration is such that choke operation is performed at the swing position.

The cable (73) of the brake mechanism and the clutch brake lever (53) are connected by a mounting piece (81) pivoted on the first shaft member (65) and a shaft member (82) mounted on the inch (?3b) end. ), via a compression coil spring (84) or the like interposed between the locking part (81a) of the mounting piece (81) and the spring receiver (83) of the shaft member (82). The cable (72) of the clutch mechanism and the clutch brake lever (53) are connected by attaching the inch (72b) to the second shaft member (66), and by swinging the clutch brake lever (53) downward, the clutch After the brake is temporarily turned off, the brake is applied. Clutch brake lever (53)
The lower limit position (D) and upper limit position (E) are the bracket/
The locking pieces (51a) and (5lb) of l.
).

The brackets (47), (75) and screws (8)
7), . . . A cover (91) is disposed through the winding plate (4) of the throttle lever (48) by the cover (81).
8a), the leg end (53c) of the clutch brake lever (53), the first shaft member (65), the second shaft member (88)
), each cable (71), (72).

Inner (71b), (72b), (73b) of (73)
and outer (71a), (72a), (73b) (1
) Cover the ends.

The cover (81) has left and right sides (91a), '(+3
1a), a front end surface (91b), an inclined upper surface (91c), and a rear end surface (91d), which are formed in a downwardly open shape. ), and an emergency button (83) for stopping the engine in an emergency is provided on the rear end surface (81d).

This embodiment is constructed as described above, and has a throttle lever (4
8), clutch brake lever (53) (in the example, it has a structure with a horizontal part (53a) extending between the left and right handle pipes (14) and (14)), and an emergency button (83) on the left handle. Since they are concentrated on the pipe (14) side, various cables (71), (72)
, (73) Bracket for arrangement) (75) etc. can be used in common to reduce the number of parts and simplify the structure.

In addition, various operating members (48), (53), (f33
) are concentrated on the left handle pipe (14) side, and various cables (71), (72),
(73) and the operating member (4B).

(53) connection points, various operating members (48), (53)
, (93) to the handle pipe (14) are covered with a single cover (81), so that the appearance of the operating device can be made compact and the appearance can be improved.

(Effects of the Invention) As is clear from the above description, according to the present invention, the number of parts of the operating device of a walking power working machine can be reduced, the structure can be simplified, and the appearance can be improved.

[Brief explanation of drawings]

FIG. 1 is a side view of the crawler-type transport vehicle, FIG. 2 is a side view of the handle portion, FIG. 3 is a plan view thereof, and FIG. 4 is a perspective view thereof. In the drawing, (1) is a crawler type transport vehicle, (14) is a handle pipe, (48) is a throttle lever, (53) is a clutch brake lever, (71), (72), (73)
is a cable, and (91) is a cover.

Claims (1)

[Scope of Claims] In a walk-behind power working machine equipped with left and right handles at the rear of the machine body, each operating member of an operation system for operating a brake mechanism, clutch mechanism, throttle valve, etc. is located on one side of the left and right handles. A walking power operation characterized in that the connection members connected to the brake mechanism, clutch mechanism, throttle valve, etc. and the connection points of each of the operating members are covered with a single cover. Machine operating device.