JP2537602Y2 - Release wire connecting device for remote control of engine governing lever - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for swingably connecting an inner wire of a release wire for remote control to a speed control lever of an engine.

[0002]

[Premise structure] The release wire connecting device for remote control of the speed control lever of the engine of the present invention is assumed to have the following premise structure as shown in FIG. 1, for example. That is, the speed control lever 1 of the engine is swingably supported on the fixed wall 3 via the lever shaft 2, and the outer wire support portion 5 is provided on the fuel increasing side of the inner wire locking portion 4 of the speed control lever 1 in the rocking direction. Position. The distal end 7a of the outer wire 7 of the release wire 6 for remote control of the speed control lever 1 is
It is supported by the outer wire support 5. The distal end 8a of the inner wire 8 of the release wire 6 is passed through the wire insertion hole 4a of the inner wire engaging portion 4, and the columnar engaging body 9 is fixed to the distal end 8a of the inner wire 8 in an orthogonal manner. I do. The locking body 9 is configured to receive and contact the inner wire locking portion 4.

[0003]

2. Description of the Related Art In the above-described premise structure, a speed control lever 1 is provided.
In order to prevent the inner wire 8 from being bent and broken at the time of swinging, the inner wire 8 needs to be swingably connected to the speed control lever 1. FIG. 3 shows a conventional structure for this purpose, which is as follows. The inner wire locking portion 4 was composed of a rotating pin 10 rotatably supported by the speed control lever 1. After the journal 10a of the rotating pin 10 is inserted into the bearing hole 1a of the governing lever 1, the journal 1a
The retaining flange 10c is formed by caulking at the hole protruding end 10b of the hole 0a.

[0004]

The above prior art has the following problems. The number of components is increased by the amount that the rotating pin 10 is required separately from the speed control lever 1. In addition, rotating pin 1
The structure becomes complicated as much as a bearing structure for rotatably supporting 0 on the governing lever 1 is required. Furthermore, retaining collar 1
The number of processing steps increases by the amount of caulking processing for forming 0c. Therefore, the manufacturing cost is high.
It is an object of the present invention to reduce the number of parts and the number of processing steps and to simplify the structure by eliminating the need for the rotating pin 10 in swingably connecting the inner wire 8 to the governing lever 1. And

[0005]

According to the present invention, in order to achieve the above-mentioned object, the following improvements have been made in the above-mentioned premise structure, for example, as shown in FIG. That is, the inner wire locking portion 4 is formed integrally with the governing lever 1, the inner wire receiving surface 4b of the inner wire locking portion 4 is formed in a convex curved surface R, and a wire insertion hole 4a is formed at the top of the convex curved surface R.
Are opened.

[0006]

The present invention operates as follows. When the inner wire 8 for controlling the speed of the engine is pulled to the right in the drawing, the cylindrical locking body 9 pushes the inner wire locking portion 4 and the speed controlling lever 1 swings to the fuel increasing side F. The angular relationship between the inner wire locking portion 4 and the locking body 9 at this time will be described with reference to FIG.
As shown in FIG. 2A, when the locking body 9 is perpendicular to the inner wire locking portion 4, the columnar locking body 9 and the convex curved surface of the inner wire receiving surface 4 b of the inner wire locking portion 4. R contact each other at one tangent to their peripheral surfaces and freely change the angle. On the other hand, as shown in FIG. 2 (B), when the locking body 9 is horizontal with respect to the inner wire locking portion 4, the locking body 9
And the inner wire receiving surface 4b abut each other at one point on the peripheral surface thereof and freely change the angle. Therefore, even when the inner wire 8 is pulled and the speed adjusting lever 1 moves to the fuel increasing side F, or when the inner wire 8 is returned and the speed adjusting lever 1 moves to the fuel decreasing side E, the locking body 9 is kept in the inner wire. Swing freely with respect to the locking portion 4. As described above, even when the locking body 9 contacts the inner wire locking portion 4 at any angle, the root of the inner wire 8 to the locking body 9 is not forcibly bent, and the inner wire 8 is not bent. There is no such thing as a break.

[0007]

The present invention has the following effects because it is constructed and operates as described above. The inner wire locking portion 4 is integrated with the speed control lever 1, and the inner wire receiving surface 4b
Is formed on the convex curved surface R, the base of the inner wire 8 to the locking body 9 is forcibly bent even when the cylindrical locking body 9 contacts the inner wire locking portion 4 at any angle. The inner wire 8 is not broken. This simplifies the structure by omitting the rotation pin 10 of the inner wire locking portion 4 and the rotation support structure of the rotation pin 10.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a release wire connecting device for remote control of a governing lever of an engine mounted on a riding work machine, and FIG. 2 is a fragmentary cutaway view showing an angular relationship between an inner wire locking portion and a locking body. Some riding work machines have two release wires for remote control of the speed control lever of the engine, one for foot operation and the other for manual operation, which are used in parallel. I do. In other words, when one is used, the other is idle. Hereinafter, the description will be made assuming that the foot movement and the manual movement are the same. In the figure,
The speed control lever 1 of the engine is fixed via the lever shaft 2 to the fixed wall 3
It is pivoted freely. An outer wire supporting portion 5 is located on the inner wire locking portion 4 formed integrally with the speed control lever 1 on the fuel increasing side in the swing direction. The inner wire receiving surface 4 of the inner wire locking portion 4
b is formed on the convex curved surface R, and a wire insertion hole 4a is opened at the top of the convex curved surface R. The distal end 7 a of the outer wire 7 of the release wire 6 for remote control of the speed control lever 1 is supported by the outer wire support 5. The distal end 8a of the inner wire 8 of the release wire 6 is passed through the wire insertion hole 4a of the inner wire locking portion 4. Then, the distal end 8a of the inner wire 8 is fixed to the columnar locking member 9 orthogonally with a screw 9a, and the locking member 9 faces the fuel reduction side of the inner wire locking portion 4, and the inner wire receiving surface 4b It is received and contacted. When the inner wire 8 is not pulled, the speed adjusting lever 1 is pulled back by the return spring 11 to the original position.

In the embodiment of the present invention, when the inner wire 8 is pulled to the right in the drawing, the columnar locking body 9 pushes the inner wire locking portion 4, and the speed control lever 1 swings to the fuel increasing side F. You. At this time, whether the locking body 9 is vertical or horizontal with respect to the inner wire locking portion 4,
The cylindrical locking body 9 and the convex curved surface R of the inner wire receiving surface 4b of the inner wire locking portion 4 come into contact with each other at one tangent or one point on the peripheral surface thereof, and swing freely by changing the angle. Therefore, even if the locking body 9 contacts the inner wire locking portion 4 at any angle, the root of the inner wire 8 to the locking body 9 is not forcibly bent, and the inner wire 8 is There is no such thing as cutting. As described above, since the inner wire locking portion 4 of the embodiment of the present invention is formed integrally with the speed control lever 1 and has a simple configuration, the inner wire locking portion 4 does not need to have the rotating pin 10 and its rotation supporting structure as in the related art. The number of parts and the number of processing steps can be reduced.

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 (A) is a plan view of a release wire connecting device for remote control of a speed control lever of an engine mounted on a riding work machine, and FIG. 1 (B) is FIG. 1 (A). ) Is a sectional view taken along line XX of FIG.

FIG. 2 is a fragmentary cutaway view showing the angular relationship between the inner wire locking portion and the locking body, showing the embodiment of the present invention. FIG. 2 (A) shows the locking body being perpendicular to the inner wire locking portion. FIG. 2 (B) is a diagram showing a case where the camera is horizontal.

FIG. 3 is a diagram showing a conventional example and corresponding to FIG. 1 (B).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Governing lever, 2 ... Lever shaft, 3 ... Fixed wall, 4 ... Inner wire locking part, 4a ... Wire insertion hole, 4b ... Inner wire receiving surface, 5 ... Outer wire support part, 6 ... Release wire, 7 ... Outer wire, 7a, 8a: distal end, 8: inner wire, 9: locking body, R: convex curved surface.

Claims (1)

(57) [Scope of request for utility model registration] 1. A speed control lever (1) of an engine is pivotally supported on a fixed wall (3) via a lever shaft (2) so as to swing freely, and an inner wire locking portion (4) of the speed control lever (1) is provided. The outer wire supporting portion (5) is positioned on the fuel increasing side in the swinging direction of the arm, and the distal end (7a) of the outer wire (7) of the release wire (6) for remote control of the governing lever (1) is connected to the outer wire. The support portion (5) is supported, and the tip (8a) of the inner wire (8) of the release wire (6) is connected to the inner wire locking portion.
The inner wire (8) is penetrated through the wire insertion hole (4a), and a columnar locking body (9) is fixed to the end portion (8a) of the inner wire (8) in an orthogonal manner. The inner wire locking part (4)
In the release wire connecting device for remote control of the speed control lever of the engine, which is configured to receive and contact the inner wire receiving surface (4b) facing the fuel reduction side, the inner wire locking portion (4) is provided with the speed control lever (1). ), The inner wire receiving surface (4b) of the inner wire locking portion (4) is formed as a convex curved surface (R), and the wire insertion hole (4a) is formed at the top of the convex curved surface (R). Characterized by being configured to open,
Release wire connecting device for remote control of engine governing lever.