JPH084561A - Throttle lever mechanism - Google Patents

Abstract

PURPOSE:To prevent the occurrence of interference of a slinging member by bringing a wire slinging member into a further delay position in a throttle valve opening direction than the wire end slinging part of an accelerator drum. CONSTITUTION:Formation of a throttle lever mechanism is formed such that an accelerator drum 14 to open a throttle valve and an autospeed control drum 15 to open a throttle valve through an accelerator drum 14 are juxtaposed on the same axis and the moving loci of slinging parts 20 and 29 are overlapped with each other as seen from an axial direction. The accelerator drum 14 is mounted rotatably integrally with the rotary shaft 13 of a throttle valve and an auto speed control drum is arranged rotatably around the rotary shaft 13 of the throttle valve. Further, a slinging part 29 at the wire end of the autospeed control drum 15 is arranged in a position situated in a further delay in the opening direction of a throttle valve than the slinging part 20 at the wire end of the accelerator drum 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a throttle lever mechanism for opening and closing a throttle valve of an engine.

[0002]

2. Description of the Related Art A throttle valve of an engine is opened and closed by operating an accelerator pedal, and a vehicle such as starting and running at a constant speed can be automatically operated. The throttle valve can be opened and closed.

In such a lever mechanism, an accelerator drum is attached to the rotary shaft of the throttle valve or the relay shaft,
The throttle valve is opened by pulling the wire by operating the accelerator pedal, and the auto speed control drum connected to the automatic driving device via the wire is installed in parallel with the accelerator drum. When the drum is rotated, the rotation is transmitted to the accelerator drum via a rotation angle transmission mechanism to open the throttle valve (Japanese Patent Laid-Open Nos. 63-246422, 302148, and 2148). -45228, Jiukai Sho 62-162133,
63-19044, 77828, 115546,
(See Japanese Patent Publication No. 196447).

[0004]

However, when the accelerator drum and the auto speed control drum are arranged side by side in this way, if the distance between the two drums is narrow, the movement locus of the sling portion at the wire end connected to the accelerator drum And the movement locus of the sling part at the wire end that is connected to the auto speed control drum overlap when viewed from the axial direction, the sling members at both wire ends interfere and the operability is impaired. I had no choice but to secure it widely.

Further, when the automatic speed control drum is provided, it is difficult to secure a space for the return spring of the automatic speed control drum if the distance between the accelerator drum and the accelerator drum is small. However, there was a disadvantage in terms of installation space, cost and weight.

An object of the present invention is to eliminate the interference of the sling member at the wire end and to obtain good operation of each drum and throttle valve.

[0007]

A first aspect of the present invention provides an accelerator drum capable of opening a throttle valve by pulling a wire connected to an accelerator pedal and an accelerator drum capable of pulling a wire connected to an automatic driving device. An automatic speed control drum that can open the throttle valve via the shaft is installed coaxially in parallel, and the movement locus of the sling part at the wire end of the accelerator drum and the movement locus of the sling part at the wire end of the auto speed control drum are In the throttle lever mechanism that is arranged so as to overlap when viewed from the axial direction, the accelerator drum is attached to the rotary shaft of the throttle valve so that it can rotate integrally, and the auto speed control drum can freely rotate with respect to the rotary shaft of the throttle valve. And the sling part at the wire end of the auto speed control drum is activated. Than slinging of the wire end of Rudoramu provided at a position retarded relative to the throttle valve opening direction.

According to a second aspect of the present invention, in the first aspect of the present invention, the accelerator drum is provided with a wire receiving groove on an outer peripheral portion bent toward the auto speed control drum, and the rotary shaft of the throttle valve is provided with respect to the center of the receiving groove. Is attached to the throttle chamber body side opposite to the auto speed control drum by offsetting, and the auto speed control drum is provided with a wire receiving groove on the outer peripheral part bent to the accelerator drum side and the receiving groove. A space where the mounting part of the throttle valve to the rotary shaft is formed offset from the center to the outside of the throttle chamber body opposite to the accelerator drum, and expanded between the two drums by the offset of the mounting part to the rotary shaft. The return spring of the auto speed control drum is installed inside

According to a third aspect of the present invention, in the first and second aspects, a wire disengagement stopper is provided only at the accelerator drum at a predetermined position on the wire receiving groove to cover the receiving groove.

[0010]

In the first aspect of the invention, when the automatic speed control drum is rotated by the wire pulling operation of the automatic driving device, the throttle valve is opened by rotating the accelerator drum together with the automatic speed control drum. Therefore, in this case, these sling members at the wire end do not interfere, but when the accelerator drum is rotated by the pulling action of the wire of the accelerator pedal, the sling part at the wire end of the auto speed control drum is not rotated. Is at a position that is more retarded with respect to the throttle valve opening direction than the sling portion at the wire end of the accelerator drum,
Also in this case, the sling members at these wire ends do not interfere with each other. Therefore, even if the movement loci of the slinging portions at both wire ends are overlapped when viewed in the axial direction, the distance between both drums can be narrowed.

According to the second aspect of the present invention, the space for the return spring of the automatic speed control drum is secured between the two drums without the outer peripheral portions of the accelerator drum and the automatic speed control drum projecting outward. For this reason, even if the accelerator drum is set for specifications that do not have an auto speed control mechanism and the accelerator drum position is determined in advance, place the auto speed control drum close to the accelerator drum, and A predetermined return spring of the speed control drum can be installed.

According to the third aspect of the present invention, the retaining wire provided on the wire receiving groove of the accelerator drum stabilizes the wire of the accelerator drum even when the throttle valve is opened through the accelerator drum by the rotation of the automatic speed control drum. You can keep the set condition. Since the automatic speed control drum is rotated only when the wire of the automatic speed control drum is pulled, the wire does not come off even if the automatic speed control drum is not provided with a retainer for the wire.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, 10 is an engine, 1
Reference numeral 1 is an intake passage, and 12 is a throttle chamber provided in the middle of the intake passage 11.

A throttle valve (not shown) is provided in the throttle chamber 12 via a rotary shaft 13 so as to be freely opened and closed. An accelerator drum 14 and an automatic speed control drum 15 are provided at the end of the rotary shaft 13 of the throttle valve. Are juxtaposed.

The accelerator drum 14 is formed in a fan shape as shown in FIGS. 3 and 4, and is integrally rotatably attached to the rotary shaft 13 of the throttle valve through a shaft hole 16.

The fan-shaped outer peripheral portion of the accelerator drum 14 is bent toward the auto speed control drum 15 side as shown in FIG.
Is formed.

With respect to the center of the receiving groove 18, the shaft hole 16 side of the accelerator drum 14, that is, the rotary shaft 1 of the throttle valve.
3 is attached to the auto speed control drum 1
It is formed in a state of being offset to the throttle chamber 12 side opposite to 5.

A hooking hole 20 for hooking a slinging member 19 at the wire end is formed at a rear portion of the receiving groove 18 in the rotation direction of the opening side of the throttle valve. A groove 21 through which the wire 17 is inserted when the sling member 19 is attached and detached is cut out from the hook hole 20.

The receiving groove 18 is provided at a substantially central position of the receiving groove 18.
A retainer 22 for the wire 17 is provided to cover the upper part of the wire 17.

In the vicinity of the shaft hole 16 of the accelerator drum 14,
As a rotation angle transmission mechanism, a receiving plate 23 with which an arm piece 31 of the automatic speed control drum 15 engages is provided at a rear portion of the hook hole 20 in the rotation direction.

Auto speed control drum 15
As shown in FIGS. 3 and 5, the outer peripheral portion is formed in a fan shape longer than the accelerator drum 14, and the throttle valve of the throttle valve is provided at a predetermined distance from the outside of the accelerator drum 14 through the shaft hole 25 to the accelerator drum 14. It is rotatably attached to the rotary shaft 13.

The fan-shaped outer periphery of the automatic speed control drum 15 is bent toward the accelerator drum 14 as shown in FIG. 6, and the bent groove 41 receives the wire receiving groove 27 of the wire 26.
Is formed.

With respect to the center of the receiving groove 27, the shaft hole 25 side of the automatic speed control drum 15, that is, the mounting portion of the throttle valve to the rotary shaft 13 is located on the accelerator drum 1.
It is formed in a state of being offset to the outside of the throttle chamber 12 opposite to that of No. 4.

A hooking hole 29 for hooking the wire hooking member 28 at the wire end is formed at the rear portion of the receiving groove 27 in the direction of rotation on the opening side of the throttle valve. A groove 30 through which the wire 26 is inserted when the sling member 28 is attached and detached is cut out from the hook hole 29.

In the vicinity of the shaft hole 25 of the automatic speed control drum 15, an arm piece 31 that engages with the receiving plate 23 of the accelerator drum 14 from the rear is provided at a rear portion in the rotation direction from the hook hole 29.

In the accelerator drum 14 and the auto speed control drum 15, as shown in FIG. 3, the hooking hole 29 of the sling member 28 of the auto speed control drum 15 is larger than the hooking hole 20 of the sling member 19 of the accelerator drum 14 in the throttle valve. Is located at a position retarded with respect to the rotation direction on the open side of the throttle valve, so that the arm piece 31 of the auto speed control drum 15 engages with the receiving plate 23 of the accelerator drum 14 from the rear side. Mounted.

The accelerator drum 1 is provided between the receiving plate 23 of the accelerator drum 14 and the throttle chamber 12.
A return spring 33 for urging the valve 4 in the closing direction of the throttle valve is interposed, and an automatic space is provided between the accelerator drum 14 and the automatic speed control drum 15 and the bar 34 extending from the throttle chamber 12. A return spring 35 for urging the speed control drum 15 in the closing direction of the throttle valve is provided.

A wire hooking member 19 is hooked in a hooking hole 20 of an accelerator drum 14 and set in a receiving groove 18 of the wire 1.
The wire 2 is connected to an accelerator pedal (not shown), and a sling member 28 is hooked in a hook hole 29 of the automatic speed control drum 15 and set in a receiving groove 27.
6 is connected to a vacuum actuator 36 of an automatic driving device (not shown). These wires 17, 26
Are arranged in parallel.

With this structure, when the vacuum actuator 36 of the automatic driving device is operated and the automatic speed control drum 15 is rotated by the pulling operation of the wire 26, the arm piece 31 of the automatic speed control drum 15 is moved. The abutment plate 23 of the accelerator drum 14 is contacted, the accelerator drum 14 is rotated together with the automatic speed control drum 15, and the throttle valve is opened.

In this case, between the accelerator drum 14 and the auto speed control drum 15, the sling member 28 for the wire 26 of the auto speed control drum 15 is located at the sling member 1 for the wire 17 of the accelerator drum 14.
Since the wire is rotated while being retarded with respect to the rotation direction of the opening side of the throttle valve from the position of 9, the wires 17, 26
The sling members 19, 28 do not interfere with each other.

On the other hand, when the accelerator pedal is depressed and the wire 17 pulls the accelerator drum 14 to rotate it, the throttle valve is opened. In this case, only the accelerator drum 14 is rotated.

For this reason, in the accelerator drum 14, the position of the sling member 28 of the wire 26 of the automatic speed control drum 15 is in the rotational direction on the opening side of the throttle valve relative to the position of the sling member 19 of the wire 17 of the accelerator drum 14. On the other hand, the sled members 19 and 28 of the wires 17 and 26 do not interfere with each other by being rotated while maintaining the retarded state.

Therefore, even when the distance between the two drums 14 and 15 is small and the loci of the slings of the wires 17 and 26 overlap when viewed from the axial direction, the accelerator drum 14 and
A good operation of the automatic speed control drum 15 can be ensured, and an accurate throttle valve opening can be obtained with respect to the operation of the accelerator pedal and the automatic driving device.

Further, since the disengagement stopper 22 is provided on the receiving groove 18 of the wire 17 of the accelerator drum 14, even when the throttle valve is opened through the accelerator drum 14 by the rotation of the automatic speed control drum 15, the accelerator is opened. The wire 17 of the drum 14 can be kept in a stable state.

In this case, the automatic speed control drum 15 is not provided with a retainer for the wire 26, but since the automatic speed control drum 15 is rotated only when the wire 26 of the automatic speed control drum 15 is pulled, The wire 26 of the automatic speed control drum 15 does not come off.

Further, the outer peripheral portions of the accelerator drum 14 and the automatic speed control drum 15 are bent toward the opposite sides to form receiving grooves 18 and 27 for the wires 17 and 26, respectively, and to the rotary shaft 13 of the throttle valve, respectively. Since the mounting portion is offset to the separated side, both drums 14,
Both drums 1 without the outer periphery of 15 protruding outside
The space between 4 and 15 is expanded, and the space for the return spring 35 of the automatic speed control drum 15 can be secured.

As a result, even if the position of the accelerator drum 14 is set in advance for a specification that does not have an automatic speed control mechanism, the automatic speed control drum 15 is placed close to the accelerator drum 14. The return spring 35 having a predetermined capacity can be attached while avoiding an increase in size.

Therefore, the installation space can be reduced,
Cost and weight can be reduced. In this embodiment, the accelerator drum 14 is provided on a relay shaft different from the rotary shaft 13 of the throttle valve.
It can also be applied to the one in which the automatic speed control drum 15 and

[0040]

As described above, according to the first aspect of the present invention, the throttle drum can be opened by the pulling operation of the wire connected to the accelerator pedal, and the accelerator operation can be performed by the pulling operation of the wire connected to the automatic driving device. The auto speed control drum that can open the throttle valve via the drum is installed coaxially in parallel, and the movement trajectory of the sling part at the wire end of the accelerator drum and the movement of the sling part at the wire end of the auto speed control drum In the throttle lever mechanism where the locus and the locus overlap when viewed from the axial direction, the accelerator drum is attached to the rotary shaft of the throttle valve so that it can rotate integrally, and the auto speed control drum is rotated relative to the rotary shaft of the throttle valve. It is installed freely and the sling part at the wire end of the auto speed control drum is installed. Since it is provided at a position that is more retarded with respect to the opening direction of the throttle valve than the sling portion at the wire end of the xel drum, it prevents interference of sling members at the wire ends of both drums and prevents the operation of the accelerator pedal and automatic driving device. The accurate throttle valve opening can be obtained, and the reliability is improved.

According to the second aspect of the present invention, the predetermined return spring of the auto speed control drum can be provided in the space that extends between the two drums without the outer peripheral portions of the accelerator drum and the auto speed control drum projecting outward. The structure is compact and the cost and weight can be reduced.

According to the third aspect of the invention, the wire of the accelerator drum can be kept in a stable state like the wire of the automatic speed control drum.

[Brief description of drawings]

FIG. 1 is a configuration layout diagram.

FIG. 2 is a bottom view of the throttle chamber portion of FIG. 1 seen from below.

FIG. 3 is a partial configuration diagram of arrow A in FIG.

FIG. 4 is a front view of the accelerator drum as viewed in the direction of arrow B in FIG.

5 is a front view of the automatic speed control drum as viewed in the direction of arrow C in FIG.

6 is a cross section taken along line DD of FIG.

[Explanation of symbols]

 20 Throttle Chamber 13 Rotating Shaft 14 Accelerator Drum 15 Auto Speed Control Drum 17 Wire 17 18 Receiving Groove 18 19 Sliding Member 20 Locking Hole 22 Retaining Stop 23 Receiving Plate 26 Wire 26 27 Receiving Groove 28 Sliding Member 29 Locking Hole 31 Arm Piece 33, 35 Return spring 36 Vacuum type actuator 40, 41 Bending part

Claims (3)

[Claims] 1. An accelerator drum that can open a throttle valve by pulling a wire connected to an accelerator pedal, and an auto that can open a throttle valve through an accelerator drum by pulling a wire that connects to an automatic driving device. The speed control drum and the speed control drum are installed side by side on the same axis.
In addition, in the throttle lever mechanism where the movement locus of the sling part at the wire end of the accelerator drum and the movement locus of the sling part at the wire end of the auto speed control drum overlap when viewed from the axial direction, It is attached to the rotary shaft of the so that it can rotate integrally, and the auto speed control drum is freely rotatable with respect to the rotary shaft of the throttle valve, and the sling part of the wire end of the auto speed control drum is slid at the wire end of the accelerator drum. A throttle lever mechanism, which is provided at a position which is retarded with respect to the opening direction of the throttle valve rather than a portion. 2. The accelerator drum is provided with a wire receiving groove in the outer peripheral portion bent toward the auto speed control drum side, and the mounting portion of the throttle valve to the rotary shaft is the auto speed control drum with respect to the center of the receiving groove. Is formed on the opposite side of the throttle chamber main body, and the auto speed control drum is provided with a wire receiving groove on the outer peripheral part that is bent toward the accelerator drum side, and to the rotary shaft of the throttle valve with respect to the center of the receiving groove. The mounting part of is formed offset on the outside of the throttle chamber body opposite to the accelerator drum, and the return spring of the auto speed control drum is located in the space expanded by the offset of the mounting part to the rotating shaft between both drums. The throttle lever machine according to claim 1, which is installed. Structure. 3. The throttle lever mechanism according to claim 1, wherein only the accelerator drum is provided with a wire disengagement stopper that covers the receiving groove at a predetermined position on the wire receiving groove.