JPH0321732B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an accelerator linkage mechanism for a constant speed traveling device.

(Prior art) Conventionally, constant speed driving systems have been used to automatically control the opening of a throttle valve installed in the intake passage of an engine using an actuator other than the accelerator pedal so as to achieve a set vehicle speed. is generally known. Conventionally, as an accelerator linkage mechanism of this constant speed traveling device, for example,
As disclosed in Japanese Patent No. 55-68627, the operating end of a constant-speed traveling actuator is connected to one end of a bell crank disposed near the accelerator pedal, and when the actuator operates to increase speed, the other end of the bell crank is connected to one end of a bell crank disposed near the accelerator pedal. It is known that the accelerator pedal is operated in conjunction with the accelerator pedal.

(Problem to be Solved by the Invention) However, in such a linkage mechanism, the accelerator pedal may cause unnecessary movement when the actuator for constant speed driving is activated, and this may lead to slack in the cable connected to the accelerator pedal. There are also. In addition, when using this method of operating the accelerator pedal with a bell crank, the installation location of the bell crank and other link members is limited to the vicinity of the accelerator pedal. Due to the relationship with equipment, it is often difficult to secure the necessary installation space.

In view of the above, the present invention provides two operation cables connected to an accelerator operation member and an actuator for constant speed driving, respectively, to the accelerator cable connected to the slot valve, and mutually connects the throttle valve with the two operation cables. By making the accelerator cable work in conjunction with each other independently,
It is an object of the present invention to provide an accelerator linkage mechanism for a constant-speed traveling device that enables independent operation of an accelerator operating member and a constant-speed traveling actuator even in a compact device that does not require a large installation space.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention includes an accelerator cable, one end of which is connected to a throttle valve disposed in the intake passage of the engine, and an accelerator cable rotatably provided. and an accelerator cable pulley member to which the other end of the accelerator cable is connected to the outer circumferential edge and an outer circumferential groove for winding the accelerator cable by rotating the outer circumferential edge. Further, a first operation cable whose one end is connected to the accelerator operation member, and a first operation cable rotatably provided coaxially with the accelerator cable pulley member on one side of the accelerator cable pulley member, and the first The first operating cable pulley member is connected to the other end of the operating cable and has an outer circumferential groove formed on the outer peripheral edge thereof to wind up the first operating cable by rotation. Further, a second operation cable whose one end is connected to the actuator for constant speed running, and a second operation cable rotatably provided coaxially with the accelerator cable pulley member on the other side of the accelerator cable pulley member,
a pulley member for a second operating cable, the other end of the second operating cable being connected to the outer peripheral edge, and an outer circumferential groove portion for winding the second operating cable by rotating the outer peripheral edge; Be prepared.
In addition, the above-mentioned accelerator cable pulley member and the first
A portion located closer to the center than the outer peripheral edge on one of the side surfaces facing the operation cable pulley member, and a side surface facing the accelerator cable pulley member and the second operation cable pulley member. A protrusion provided at a portion located closer to the center than the outer peripheral edge on one side, and a portion located closer to the center than the outer peripheral edge on the other side facing the one side. Each of the grooves is formed in an arc shape centered on the rotation center of the pulley, and includes an arcuate groove into which the protrusion is slidably fitted. The protrusion and the arcuate groove rotate the accelerator cable pulley member with respect to the rotation of the first operating cable pulley member in the acceleration direction, while keeping the second operating cable pulley member non-rotatable; The accelerator cable pulley member is configured to rotate in response to rotation of the second operating cable pulley member in the speed increasing direction, while the first operating cable pulley member is set not to rotate. .

(Function) Accordingly, in the present invention, when the accelerator operation member is operated, the first operation cable is pulled, and the first operation cable is pulled.
The operating cable pulley member rotates. With this rotation, the accelerator cable pulley member rotates due to the engagement between the protrusion between both pulley members and the end of the arcuate groove, and the accelerator cable is pulled to increase the opening degree of the throttle valve. When the accelerator operating member is returned, the accelerator cable returns and the throttle valve closes. During such an acceleration/deceleration operation, the protrusion of the second operation cable pulley member only moves relatively within the arcuate groove between the second operation cable pulley member and the accelerator cable pulley member, but does not rotate, that is, is not restrained.

On the other hand, when the actuator for constant speed travel is activated, the second operating cable is pulled, and the second operating cable pulley member rotates. Along with this rotation,
The accelerator cable pulley member is rotated by the engagement between the protrusion between the two pulley members and the end of the arcuate groove, and the accelerator cable is pulled to maintain the slot valve at the set opening degree, resulting in a constant speed condition. At this time, the first
The projection of the operation cable pulley member only moves within the arcuate groove between it and the accelerator cable pulley member, but does not rotate. That is, the accelerator operating member and the first operating cable do not move.

In this case, the protrusion and the arcuate groove transmit power between the pulley members through the engagement of the protrusion and the end of the arcuate groove, while the protrusion can move freely within the arcuate groove to prevent the pulley members from each other. Therefore, by simply providing an arcuate groove and a protrusion on the side surface portion located closer to the center than the outer circumferential edge of the outer circumferential groove of the pulley member, one of the adjacent pulley members can be restrained. The protrusion of the pulley member can be accommodated in the arcuate groove of the other pulley member, the distance between both pulley members can be narrowed, and the entire device can be made compact.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows the overall configuration of one embodiment.
Reference numeral 3 indicates a throttle valve disposed in an intake passage 2 of the engine, 3 an accelerator pedal as an accelerator operation member pivotably mounted on a lower dash panel 4 of the vehicle body, and 5 an actuator for constant speed running. Reference numeral 6 denotes an accelerator cable, one end of which is connected to the throttle valve 1, and the other end supported by an intermediate pulley device 7 as an accelerator linkage mechanism attached to the lower dash panel 4.

A first operating cable 8 and a second operating cable 9 are connected in parallel to this intermediate pulley device 7, and the terminal end of the first operating cable 8 is connected to the accelerator pedal 3, and the terminal end of the second operating cable 9 is connected to the accelerator pedal 3. The terminal end is connected to an actuator 5 for constant speed travel.

That is, as shown in FIGS. 2 and 3, the intermediate pulley device 7 includes three pulley members each using a pulley, that is, an accelerator cable pulley member that locks the accelerator cable 6 at its outer peripheral edge. 10
, a first operating cable pulley member 11 that locks the first operating cable 8 at its outer peripheral edge, and a second operating cable pulley member 12 that locks the second operating cable 9 at its outer peripheral edge. And each pulley member 1
0 to 12 have pulley members 11 and 12 for each operation cable arranged on both sides of the pulley member 10 for the accelerator cable, and can rotate coaxially with each other on a support shaft 14 on a bracket 13 fixed to the lower dash panel 4. is supported by Furthermore, each pulley member 10 to 12
Outer peripheral edges 10a, 11a, and 12a are formed on each of the outer peripheral edges of the pulley members 10 to 12 to wind up the cables 6, 8, and 9 as the pulley members 10 to 12 rotate.

Therefore, the pulley member 10 for the accelerator cable
can be engaged with each operating cable pulley member 11, 12 only by speed increasing operation of each operating cable 8, 9. It is done without restriction. To explain this point in detail, as shown in FIG. 2, when the accelerator cable pulley member 10 rotates in the direction of arrow A, the accelerator cable 6 is pulled, the opening degree of the throttle valve 1 becomes larger, and the vehicle speed increases. Increase speed. On the other hand, each operation cable pulley member 11, 12 is connected to the accelerator pedal 3.
The speed increasing operation of each operation cable 8, 9 (second
(indicated by arrows B and C in the figure, respectively), rotates in the direction of arrow A in the same manner as the accelerator cable pulley member 10. And each pulley member 10~
The 12 linkage states are specifically shown in FIG. That is, the accelerator cable pulley member 10 has a protrusion 15 at a portion located closer to the center than the outer peripheral edge on the side surface facing the first operation cable pulley member 11, and a second operation cable pulley member 12.
An arcuate groove 16 having an arcuate shape centered on the rotation center of the pulley member 10 is formed in a portion located closer to the center than the outer peripheral edge of the side surface facing the pulley member 10 . On the side surface of the first operation cable pulley member 11 facing the accelerator cable pulley member 10, there is an arcuate groove 17 into which the protrusion 15 is slidably fitted in the direction of arrow A from a position corresponding to the protrusion 15.
However, on the side surface of the second operation cable pulley member 12 facing the above-mentioned accelerator cable pulley member 10, there is provided this at a position corresponding to the tip in the direction of arrow A in the arcuate groove 16 of the accelerator cable pulley member 10. A protrusion 18 that slidably fits into the arcuate groove 16
is formed. In addition, each pulley member 10, 1
The above positional relationship between throttle valve 1 and 12 is
The explanation was given in the set state where the is closed. Further, each pulley member 10, 11, 12 is attached with a return spring (not shown) that returns to the set state.

Therefore, when the first operation cable 8 is operated to increase the speed, the protrusion 15 of the accelerator cable pulley member 10 only engages with the base end 17a of the arcuate groove 17 of the first operation cable pulley member 11, and the second operation cable pulley member 10 It does not engage with the operation cable pulley member 12. Further, when the second operating cable 9 is operated to increase the speed, the accelerator cable pulley member 10 is moved to the tip 16a of the arc groove 16.
is only engaged with the protrusion 18 of the second operating cable pulley member 12, and the first operating cable pulley member 1
It does not engage with 1. Further, in the case of this embodiment, since the arcuate grooves 16 and 17 of the pulley members 10 and 11 are provided at the same phase position in the rotation direction, the pulley members 1
The projections 15 and 18 of No. 0 and 12 need to be provided at positions that are out of phase by the arc length of the arc grooves 16 and 17 in the rotation direction. Note that if the protrusions 15 and 18 are provided at positions that are in the same phase in the rotational direction, the arcuate grooves 16 and 17 need to be provided at positions that are out of phase in the rotational direction.

Next, to explain the operation of the above embodiment, first,
During normal driving, when the accelerator pedal 3 is depressed, the first operating cable 8 is pulled in the direction of arrow B, and the first operating cable 8 is pulled in the direction of arrow B.
The operating cable pulley member 11 rotates in the direction of arrow A. Along with this rotation, the protrusion 15 of the accelerator cable pulley member 10 engages with the proximal end 17a of the circular arc groove 17 of the first operation cable pulley member 11, and rotates in the direction of arrow A. 6 is pulled, and the opening degree of the slot valve 1 increases. When the accelerator pedal 3 is released, the accelerator cable 6 returns to its original position due to the action of the return spring.
Throttle valve 1 is closed. During such an acceleration/deceleration operation, the projection 18 of the second operation cable pulley member 12 only moves relatively within the arcuate groove 16 of the accelerator cable pulley member 10 and does not rotate, that is, it is not restrained.

On the other hand, when the actuator 5 for constant speed travel is activated, the second operating cable 9 is pulled in the direction of arrow C, and the pulley member 12 for the second operating cable rotates in the direction of arrow A. With this rotation, the accelerator cable pulley member 10 is rotated at the tip 1 of the arcuate groove 16.
6a engages with the protrusion of the second operating cable pulley member 12 and rotates in the direction of arrow A, pulling the accelerator cable 6 to maintain the throttle valve 1 at the set opening degree, thereby bringing the throttle valve 1 into a constant speed state. At this time, the protrusion 15 of the accelerator cable pulley member 10 only moves within the arcuate groove 17 of the first operating cable pulley member 11, and the first operating cable pulley member 11 does not rotate. That is, the accelerator pedal 3 and the first operation cable 8 do not move.

Note that the relationship between the protrusions and the arcuate grooves in each of the pulley members 10, 11, and 12 is not limited to the above embodiments.
For example, protrusions may be provided on both sides of the pulley member 10 for the accelerator cable, and arcuate grooves corresponding to the protrusions may be provided on each of the pulley members 11 and 12 for the operation cable, or conversely, the pulley member 10 for the accelerator cable may be provided with an arcuate groove corresponding to the protrusion.
Arc grooves may be provided on both sides of the cable, and projections may be provided on each operating cable pulley member 11, 12.

The mounting position of the intermediate pulley device 7 is not limited to the vehicle interior side of the lower dash panel 4, but may be mounted anywhere between the accelerator pedal 3 and the throttle valve 1.

(Effects of the Invention) As described above, according to the present invention, the accelerator operating member does not make unnecessary movements when the constant speed traveling actuator is activated, the cable is prevented from being bent, and the pulley member is prevented from being bent. By providing a protrusion and an arcuate groove that act as a transmission part inside,
The entire device can be made compact without requiring a large installation space. Also, since this mechanism does not engage with the accelerator operating member,
An excellent effect can be obtained in that the mounting location can be arbitrarily selected between the accelerator operating member and the throttle valve.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the present invention; FIG. 1 is a sectional view showing the overall configuration of one embodiment, FIG. 2 is a perspective view showing the mechanism, and FIG. 3 is an exploded perspective view thereof. 1...Throttle valve, 2...Intake passage, 3
... Accelerator pedal, 5 ... Actuator for constant speed running, 6 ... Accelerator cable, 7 ... Intermediate pulley device, 8 ... First operation cable, 9 ... Second operation cable, 10 ... Pulley for accelerator cable Member, 11... Pulley member for first operation cable, 12
... Pulley member for second operation cable, 10a to 12
a...Outer circumference groove, 15, 18...Protrusion, 16, 1
7...Circular groove.

Claims (1)

[Scope of Claims] 1. An accelerator cable, one end of which is connected to a throttle valve disposed in an intake passage of an engine, and the other end of the accelerator cable is rotatably provided and connected to the outer peripheral edge of the accelerator cable. , an accelerator cable pulley member having an outer circumferential groove formed in the outer circumferential edge to wind up the accelerator cable by rotation; a first operating cable having one end connected to an accelerator operating member; and the accelerator cable pulley member It is rotatably provided coaxially with the pulley member for the accelerator cable on one side, and the other end of the first operating cable is connected to the outer peripheral edge, and the first operating cable is rotated to the outer peripheral edge. a first operation cable pulley member formed with an outer circumferential groove for winding the cable; a second operation cable whose one end is connected to an actuator for constant speed running; and a second operation cable whose other end is connected to the accelerator cable pulley member. The second operating cable is rotatably provided on the same axis as the pulley member, the other end of the second operating cable is connected to the outer peripheral edge, and an outer circumferential groove portion for winding the second operating cable by rotation is provided on the outer peripheral edge. a formed second operating cable pulley member, and a portion located closer to the center than the outer peripheral edge on one of the opposing sides of the accelerator cable pulley member and the first operating cable pulley member. , and a protrusion provided at a portion located closer to the center than the outer peripheral edge on one of the opposing sides of the accelerator cable pulley member and the second operation cable pulley member; a circular groove formed in an arc shape centered on the rotation center of the pulley at a portion located closer to the center than the outer peripheral edge on the other opposing side surface, and into which the protrusion is slidably fitted; The protrusion and the arcuate groove rotate the accelerator cable pulley member with respect to the rotation of the first operating cable pulley member in the acceleration direction, while keeping the second operating cable pulley member non-rotatable; In response to the rotation of the second operation cable pulley member in the acceleration direction, the accelerator cable pulley member is rotated, while the first operation cable pulley member is rotated.
An accelerator linkage mechanism for a constant speed traveling device, characterized in that a pulley member for an operating cable is set to non-rotate.