JP3406985B2 - Governor equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a governor device,
In particular, it relates to a governor device used for a specially-equipped vehicle such as a crane truck.

[0002]

2. Description of the Related Art A governor device used for a specially-equipped vehicle such as a crane truck has a structure as shown in FIGS. 5 and 6, for example. In FIGS. 5 and 6, reference numeral 1 denotes a governor body of the governor device, and a control shaft 2 is provided on the governor body 1 with its tip portion protruding from the side surface portion of the governor body 1.

The control shaft 2 is for controlling the rotation speed of an engine mounted on a specially equipped vehicle, and a first rotating member 3 is held at its tip end. A work operator (not shown) for operating a work device such as a boom is connected to the first rotating member 3 via a wire 4 (see FIG. 6) to operate the work operator. Then, the first rotating member 3 and the control shaft 2 rotate counterclockwise in FIG. 6, whereby the rotation of the engine (not shown) rises.

Further, a second rotating member 6 is rotatably held on the first rotating member 3 by a bolt 5 attached to the first rotating member 3. An accelerator pedal (not shown) is connected to the second rotating member 6 via an accelerator wire 7 (see FIG. 5). When the accelerator pedal is depressed, the second rotating member 6 is centered around the bolt 5. It rotates in the counterclockwise direction in FIG.

The bolt 5 is provided at a position eccentric from the control shaft 2 which is the center of rotation of the first rotating member 3. The bolt 5 is provided with a second rotating member 6 as shown in FIG. A coil spring 8 (see FIG. 5) that biases in the direction is attached.

A spring hooking member 10 is attached to the first rotating member 3 with a bolt 9, and the first rotating member 3 is provided between the spring hooking member 10 and the governor body 1.
A coil spring 11 for urging the coil in the clockwise direction in FIG. 6 is installed.

The spring hooking member 10 has a first
An engaging portion 12 for rotating the rotating member 3 together with the second rotating member 6 in the counterclockwise direction in the drawing is provided. The second rotating member 6 is in contact with the locking portion 12, and when the accelerator pedal is depressed during traveling, the first rotating member 3 and the second rotating member 6 are centered on the control shaft 2. It rotates in the counterclockwise direction in FIG.

By the way, in such a governor device, if the operator erroneously steps on the accelerator pedal while operating the working operator, the second rotating member 6 will move to the position shown in FIG.
It rotates in the counterclockwise direction and contacts the locking portion 12 provided on the spring hook member 10. As a result, the first rotating member 3 and the control shaft 2 rotate counterclockwise in FIG. 6 together with the second rotating member 6 to increase the rotation of the engine, which may hinder crane work and the like. is there. For this reason, conventionally, an accelerator interlock device 13 as shown in FIG. 7 is provided between the floor panel of the specially equipped vehicle and the accelerator pedal 14, and the accelerator interlock device 13 is operated during work to lock the accelerator pedal 14. There is.

[0009]

However, since the accelerator interlock device 13 shown in FIG. 7 is operated by a signal from a controller (not shown), the structure is complicated and there is a risk of failure. Further, in the above-mentioned conventional technique, a controller for operating the accelerator interlock device 13, a pilot lamp for detecting a working time, and the like are required, which causes a problem of increasing cost.

The present invention has been made in view of the above circumstances, and an object thereof is that the second rotating member has the first rotating member even if the accelerator pedal is erroneously depressed while operating the work operator. It is an object of the present invention to provide a governor device that can prevent rotation in a predetermined direction together with a rotation member with a simple configuration and can reduce cost.

[0011]

In order to solve the above-mentioned problems, the invention of claim 1 has a cabana main body having a control shaft for controlling the rotation speed of an engine mounted on a specially equipped vehicle, and a cabana body held by the control shaft. A first rotating member that rotates in a predetermined direction according to an operation amount of a work operator that operates a work device provided in the specially equipped vehicle, and the first rotating member includes the first rotating member. A second rotation member which is held with a position deviated from the rotation center of the member as a rotation center and is rotated integrally with the first rotation member by operating an accelerator pedal provided on the specially equipped vehicle. In the governor device configured as described above, the first rotating member is rotated by the operation of the work operator outside the rotation track of the second rotating member that is rotated by the operation of the accelerator pedal. Only when the above In which it characterized in that a stopper member for restricting the rotation of the rotating member.

According to a second aspect of the invention, in the first aspect of the invention, the stopper member is provided so as to project from the main body of the cabana. According to a third aspect of the invention, in the first aspect of the invention, the second rotating member is
It is characterized in that it has an engaging portion that engages with the stopper member.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. As shown in FIG. 1, a control shaft 22 is provided at a front end portion of a governor body 21 of a governor device according to an embodiment of the present invention. It is provided so as to project from the side surface portion of 21.

The control shaft 22 is for controlling the number of revolutions of the engine mounted on the specially equipped vehicle, and a first rotating member 23 is held at its tip. A work operator (not shown) for operating a work device such as a boom is connected to the first rotating member 23 via a wire 24 (see FIG. 2) to operate the work operator. Then, the first rotating member 23 and the control shaft 22 rotate counterclockwise in FIG. 2, thereby increasing the rotation of the engine (not shown).

A second rotating member 26 is attached to the first rotating member 23, and the bolt 2 is attached to the first rotating member 23.
It is rotatably held by 5. An accelerator pedal (not shown) is connected to the second rotating member 26 via an accelerator wire 27 (see FIG. 1). When the accelerator pedal is depressed, the second rotating member 26 is centered around the bolt 25. It rotates in the counterclockwise direction in FIG.

The bolt 25 is provided at a position eccentric from the control shaft 22, which is the center of rotation of the first rotating member 23. The bolt 25 has a second rotating member 26 in FIG. A coil spring 28 (see FIG. 1) that biases in the direction is attached.

A spring hooking member 30 is fixed to the first rotating member 23 by a bolt 29, and the first rotating member 23 is provided between the spring hooking member 30 and the governor body 21. A coil spring 31 is installed to urge the first rotating member 23 in the clockwise direction in FIG. 2 when rotated in the counterclockwise direction in FIG.

The spring hooking member 30 has a first
An engaging portion 32 for rotating the rotating member 23 together with the second rotating member 26 in the counterclockwise direction in the drawing is provided.
The second rotating member 26 is in contact with the locking portion 32, and when the accelerator pedal is depressed during traveling, the first rotating member 23 and the second rotating member 26 are released as shown in FIG. The control shaft 22 is rotated counterclockwise in the drawing.

A stopper member 34 is attached to the governor body 11 by a plurality of attaching screws 33.
The stopper member 34 is provided for the first rotating member 23 and the control shaft 2 when operating the work operator.
2 is for restricting rotation in the counterclockwise direction in FIG. 2, and this stopper member 34 is provided when the second rotation member 26 is rotated around the bolt 25 by the operation of the accelerator pedal. Rotation locus 26 of the second rotation member 26
It is provided outside a (see FIG. 2).

An engaging portion 35 is provided on the second rotating member 26, and the engaging portion 35 is attached to the first rotating member 23.
Stopper member 3 only when is rotated counterclockwise in FIG.
4 is to be engaged.

In one embodiment of the present invention having such a configuration, when a work operator (not shown) is operated, the first rotating member 23 moves the control shaft 22 as shown in FIG.
Rotate counterclockwise in the figure around. At this time, the bolt 25 provided at a position eccentric from the rotation center of the first rotation member 23 is displaced in position with the rotation of the first rotation member 23, and the second rotation is performed. The stopper member 3 provided on the governor body 21 is provided with the engaging portion 35 provided on the member 26.
4 is moved to a position where it engages (see FIG. 4). As a result, the second rotating member 26 causes the stopper member 34 and the engaging portion 35 to move.
Since rotation in the counterclockwise direction in the figure is restricted by the and, even if the operator mistakenly presses the accelerator pedal in this state, the second rotation member 26 together with the first rotation member 23 in the counterclockwise direction in the figure. It does not rotate.

Therefore, according to the embodiment of the present invention, the second rotating member 26 together with the first rotating member 23 in the drawing is provided even if the operator mistakenly depresses the accelerator pedal while operating the work operator. Rotation in the counterclockwise direction can be prevented by a simple configuration, and as a result, it is not necessary to provide the accelerator interlock device 13 as shown in FIG. 7 between the floor panel of the specially equipped vehicle and the accelerator pedal, so that the cost can be reduced. Can be achieved.

Although the stopper member 34 is attached to the governor body 21 in the above-described embodiment of the present invention, the same effect can be obtained even if the stopper member 34 is attached to, for example, an engine (not shown).

Further, in the embodiment of the present invention, the engaging portion 32 with which the second rotating member 26 abuts is provided on the spring hook member 30, but the engaging portion 32 is provided on the first rotating member 23. May be. Furthermore, in one embodiment of the present invention, the first rotating member 2
3 is attached to the spring hook member 30, and this spring hook member 3
Although the coil spring 31 is installed between 0 and the governor body 11, the coil spring 31 may be installed between the governor body 11 and the first rotating member 23.

[0025]

As described above, according to the inventions of claims 1 to 3, even if the accelerator pedal is erroneously stepped on while operating the work operator, the second rotating member is moved to the first position. It is possible to provide the governor device which can prevent the rotation in the predetermined direction together with the one rotation member with a simple configuration and can reduce the cost.

[Brief description of drawings]

FIG. 1 is a front view of a governor device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a side view showing a state of a first rotating member and a second rotating member when the accelerator pedal is stepped on during running in the governor device according to the embodiment of the present invention.

FIG. 4 is a side view showing a state of a first rotating member and a second rotating member when a work operator is operated in the governor device according to the same embodiment.

FIG. 5 is a front view of a conventional governor device.

6 is a cross-sectional view taken along the line BB of FIG.

FIG. 7 is a side view of the accelerator interlock device.

[Explanation of symbols]

21 ... Governor body 22 ... Control shaft 23 ... First rotating member 24 ... Wire 25 ... bolt 26 ... Second rotating member 27 ... Wire 28 ... Coil spring 30 ... Spring hanging member 31 ... Coil spring 32 ... Locking part 34 ... Stopper member 35 ... Engagement part

Claims (3)

(57) [Claims] 1. A cabana main body having a control shaft for controlling a rotation speed of an engine mounted on a specially equipped vehicle,
A first rotating member that is held by the control shaft and that rotates in a predetermined direction according to an operation amount of a work operator that operates a work device provided on the specially equipped vehicle; A second rotary member which is held integrally with the first rotary member by operating an accelerator pedal provided on the specially-equipped vehicle and which is held at a position deviated from the rotary center of the first rotary member. In the governor device including a rotating member, the first rotating member is operated outside the rotating locus of the second rotating member that is rotated by operating the accelerator pedal. A governor device comprising a stopper member for restricting rotation of the second rotating member only when the moving member rotates. 2. The governor device according to claim 1, wherein the stopper member is provided so as to project from the cabana main body. 3. The governor device according to claim 1, wherein the second rotating member has an engaging portion that engages with the stopper member.