JP4234464B2 - Front and rear adjustable pedal device for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pedal device for a vehicle, and more particularly to an improvement in a vehicle pedal device that can be adjusted in the front-rear direction and that can move the position of a step portion in the front-rear direction of the vehicle.
[0002]
[Prior art]
(a) a bracket that is integrally fixed to the vehicle body; and (b) is provided so as to be rotatable around a first support shaft disposed on the bracket, and is rotated around the first support shaft by an adjusting means. An adjustment link that is moved and positioned at a predetermined rotation position; and (c) is connected to the adjustment link so as to be relatively rotatable around a first connection shaft parallel to the first support shaft, A pedal member that is rotated about the first connecting shaft by being depressed, and (d) is disposed on the bracket so as to be rotatable about a second support shaft parallel to the first support shaft. A rotating member coupled to the output member and positioned at a substantially constant initial position; and (e) disposed across the pedal member and the rotating member, and in a side view, A square is formed with one support shaft and the first connecting shaft. A second connecting shaft provided parallel to the first support shaft at a position to be connected to the pedal member and the rotating member so as to be relatively rotatable around the third connecting shaft, and cooperates with the adjustment link. The pedal member is positioned in a fixed posture, and the pedal member is moved in the front-rear direction of the vehicle by being rotated around the third connecting shaft as the adjustment link is rotated. When the step portion is depressed and the pedal member is rotated about the first connecting shaft while the link is positioned at a predetermined rotation position, the rotation member is rotated from the initial position. There has been proposed a vehicular pedal device having an interlocking link for displacing the output member, which can be adjusted in the front-rear direction. For example, the devices described in Patent Documents 1 and 2 are examples thereof, and according to such a pedal device for a vehicle, the position of the step portion can be moved forward and backward in accordance with the physique of the driver. Therefore, driving operation becomes easy.
[0003]
On the other hand, Patent Document 3 proposes that a load detection device for detecting a transmission load between the pedal member and the output member is disposed at the connecting portion between the pedal member and the output member. The transmission load corresponds to the stepping operation force of the pedal member. For example, when the stepping operation force is greater than or equal to a predetermined value, it is configured to switch between ON and OFF, and whether or not the driver has intentionally performed the stepping operation. Alternatively, by detecting whether or not the stepping operation force is not less than a predetermined value, it can be used for various controls such as brake control.
[0004]
[Patent Document 1]
JP 2001-278017 A [Patent Document 2]
JP 2002-283976 A [Patent Document 3]
Japanese Patent Laid-Open No. 2000-168532
[Problems to be solved by the invention]
When the load detection device described in Patent Document 3 is applied to the vehicle pedal device that can be adjusted in the front-rear direction described in Patent Documents 1 and 2, the load detection device is disposed on the rotation member. Since the interlocking link is pivotally connected around the third connecting shaft and is swung when the pedal member is adjusted in the longitudinal direction, the interlocking link or the pedal member interferes with the load detection device and the pedal member is adjusted in the longitudinal direction. There was a problem of being constrained.
[0006]
The present invention has been made against the background of the above circumstances, and the object of the present invention is to provide a load detection device that detects a stepping operation force even in a vehicle pedal device that can be adjusted in the longitudinal direction without impairing the longitudinal adjustment function. Is to be able to arrange.
[0007]
[Means for Solving the Problems]
In order to achieve such an object, the present invention includes (a) a bracket that is integrally fixed to a vehicle body, and (b) a pivotal support around a first support shaft disposed on the bracket, An adjustment link that is rotated around the first support shaft by the adjusting means and positioned at a predetermined rotation position; and (c) around the first connection shaft parallel to the first support shaft. A pedal member that is connected so as to be relatively rotatable and that is turned around a first connecting shaft when the step portion is depressed, and (d) around a second supporting shaft that is parallel to the first supporting shaft. A rotating member that is pivotally disposed on the bracket and connected to the output member and positioned at a substantially constant initial position; and (e) straddling the pedal member and the rotating member. And the first support in a side view And a second connecting shaft provided in parallel with the first support shaft at a position forming a quadrangle together with the first connecting shaft, and a pedal member and a rotating member that can rotate relative to each other around the third connecting shaft. The pedal member is connected to position the pedal member in a fixed posture in cooperation with the adjustment link, and the pedal member is turned around the third connection shaft as the adjustment link rotates. When the pedal is rotated around the first connecting shaft with the adjustment link positioned at a predetermined rotation position and the pedal member is rotated around the first connecting shaft, the rotation is performed. And an interlocking link that displaces the output member by rotating the moving member from the initial position. (F) The rotating member is connected to the interlocking link. A first pivot arm and a second pivot arm connected to said output member, together includes spaced in the axial direction of the second support shaft, first it such pivoting arm and the second while rotating arm is integrally formed, (g) the connection portion between the output member and its second pivot arm, is disposed the load detection device for detecting the transmitted load between it and the like It is characterized by being.
[0008]
The second invention is the adjustable pedal apparatus for a vehicle before and after the first invention, (a) the second pivot arm is to be separated from the first rotation arm in the axial direction before Symbol second support shaft An inclined portion bent to the distal end, and a distal end connecting portion that is provided continuously to the distal end side of the inclined portion and is perpendicular to the second support shaft, and (b) the load detecting device includes: It is arrange | positioned so that the said inclination part may be straddle | crossed from the said front- end | tip connection part .
According to a third aspect of the present invention, there is provided the vehicle pedal device according to the second aspect of the invention, wherein the load detecting device includes: (a) a fourth parallel to the second support shaft at the tip connecting portion of the second rotating arm; It is attached to the periphery of the connecting shaft so as to be capable of relative rotation, extends from the tip connecting portion while bending along the inclined portion, and is connected to the output member at a portion between the fourth connecting shaft and the inclined portion. A pedal lever that is connected and is rotated relative to the second pivot arm around the fourth coupling axis by the reaction force of the output member when the second pivot arm is pivoted in response to the depression of the pedal member; (b) a displacement sensor disposed on the inclined portion of the second rotating arm and detecting a relative rotation of the pedal force lever with respect to the second rotating arm.
[0009]
In this specification, “... rotation around the axis” is synonymous with “... rotation around the axis of the axis” unless there is a particular problem, and does not necessarily mean relative rotation with respect to the axis. Not what you want.
[0010]
【The invention's effect】
In such a vehicle pedal device that can be adjusted in the front-rear direction, the first rotating arm connected to the interlocking link and the second rotating arm connected to the output member via the load detection device have the second support. Because they are spaced apart in the axial direction of the shaft, there is no risk of interfering with the load detection device even if the interlocking link or pedal member moves in the longitudinal direction of the vehicle with the longitudinal adjustment of the pedal member. The stepping operation force can be detected by the load detection device without impairing the function.
[0011]
In the second invention, the second rotating arm has an inclined portion bent so as to be separated from the first rotating arm , and the load detecting device is arranged along the inclined portion . Before and after the load detecting device is provided, the base end portion of the rotating arm can be brought close to the first rotating arm, and the protrusion of the load detecting device in the width direction (the axial direction of the second support shaft) is suppressed. The adjustable vehicle pedal device can be compactly arranged in a limited space in front of the driver's seat.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is preferably applied to a brake pedal device for a service brake of a vehicle, but can be applied to various pedal devices for a vehicle such as a brake pedal device, a clutch pedal device, and an accelerator pedal device for a parking brake.
[0013]
The adjusting means for rotating the adjustment link and positioning it at a predetermined rotation position is disposed across the vehicle body side member such as a bracket and the adjustment link, and is operated by a switch using a drive device such as an electric motor. The adjustment link is automatically rotated and positioned by such means as described above, but various modes such as rotating and positioning the adjustment link by manual operation can be adopted.
[0014]
In the present invention, for example, it is desirable that the second support shaft is set coaxially with the first support shaft, and the adjustment link and the rotation member are disposed so as to be relatively rotatable around a common axis. It is also possible to set the shaft and the second support shaft at different positions.
[0015]
Further, for example, the shape of a side view connecting the first support shaft, the first connection shaft, the second connection shaft, and the third connection shaft is a parallelogram, and the adjustment link is around the first support shaft. The pedal member is configured to be translated in the front-rear direction of the vehicle by being pivoted to the side, but the shape of the side view is a parallelogram so that the posture of the pedal member changes with the front-rear adjustment. It is also possible to have a quadrangular shape different from.
[0016]
Further, when the first support shaft and the second support shaft are coaxial, for example, the first rotating arm is protruded substantially horizontally from the first support shaft (second support shaft) to the rear side (driver's seat side) of the vehicle. The adjusting link and the interlocking link are suspended downward from the first support shaft and the third connecting shaft, the pedal member is connected to the lower end of the adjusting link and the adjusting link is connected to the intermediate position of the adjusting link to adjust the front and back. The second rotating arm is configured to hang downward from the first support shaft (second support shaft) and to be connected to the output member via the load detection device.
[0017]
Further, the load detecting device includes, for example, (a) an elastic coupling device that couples the second rotating arm and the output member so as to be relatively displaceable according to the transmission load, and (b) the second rotating arm and the output member. And a displacement sensor for detecting relative displacement with respect to. The elastic coupling device is, for example, (a-1) disposed on the second rotation arm so as to be relatively rotatable around a fourth coupling axis parallel to the second support shaft, and coupled to the output member. A pedal force lever; and (a-2) urging the pedal force lever in the output direction of the output member, and the reaction force of the output member when the second rotating arm is rotated in response to the stepping operation of the pedal member And an elastic body that allows the pedal force lever to relatively rotate around the fourth connecting shaft with respect to the second rotating arm in response to a stepping operation force (transmission load). The displacement sensor is configured to detect relative rotation of the pedal force lever with respect to the second rotation arm, for example. As the elastic body, a spring such as a coil spring is preferably used, but rubber or the like can also be used. Further, the displacement sensor may be switched between ON and OFF with a predetermined displacement amount, that is, a stepping operation force as a boundary, but may be one in which a detection value continuously changes in accordance with the displacement amount. Note that various other load detection devices such as strain gauges can also be employed.
[0018]
For example, the rotating member includes a rotating body that is rotatably arranged around the second support shaft and in which the first rotating arm and the second rotating arm are integrally fixed by welding or the like. However, various modes are possible, such as configuring them integrally with a synthetic resin material or the like.
[0020]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1A and 1B are diagrams for explaining an example in which the present invention is applied to a brake pedal device 10 for a service brake of a vehicle. FIG. 1A is a front view, FIG. 1B is a right side view, and FIG. The right direction of is the front side of the vehicle. The brake pedal device 10 is disposed on a bracket 12 that is integrally fixed to a vehicle body (not shown), and when a stepped portion 14p such as a pedal pad provided at the lower end portion of the pedal member 14 is depressed. The rotating member 18 rotatably disposed around the support shaft 16 provided on the bracket 12 is rotated counterclockwise from the initial position shown in FIG. When the rod 22 of the brake booster connected via the detection device 20 is pushed forward of the vehicle, the push rod of a master cylinder (not shown) is pushed in to generate brake hydraulic pressure mechanically. The support shaft 16 also serves as a first support shaft and a second support shaft, and the three support plates 12a, 12b, and 12c of the bracket 12 are arranged such that the axis is substantially parallel to the width direction of the vehicle. The rotation member 18 is provided between the support plates 12b and 12c so as to be rotatable about an axis. The rod 22 of the brake booster corresponds to an output member.
[0021]
The brake pedal device 10 includes a front / rear adjustment device 26 that moves the position of the stepped portion 14p at the time of non-depressing operation, that is, the original position from the rear moving end shown by a solid line to the front moving end shown by a one-dot chain line in FIG. I have. The front / rear adjustment device 26 is (a) rotatably disposed on the support shaft 16 at the upper end portion, and the pedal is disposed at the lower end portion so as to be relatively rotatable around a first connecting shaft 28 parallel to the support shaft 16. An adjustment link 30 to which the member 14 is connected; and (b) a pedal whose lower end is relatively rotatable about a second connection shaft 32 parallel to the support shaft 16 on the rear side of the vehicle with respect to the first connection shaft 28. Connected to the member 14, the upper end portion is connected to the rotating member 18 so as to be relatively rotatable around a third connecting shaft 34 parallel to the support shaft 16 on the rear side of the support shaft 16. And an interlocking link 36. The adjustment link 30 and the interlocking link 36 are integrally provided on both sides of the pedal member 14, respectively. The adjustment link 30 is rotatably provided between the support plates 12a and 12b, and can be rotated relative to the rotation member 18 disposed between the support plates 12b and 12c. It is said that.
[0022]
The rotation member 18 is rotatable around the support shaft 16 and the first rotation arm 40 connected to the interlocking link 36, the second rotation arm 42 connected to the rod 22 via the load detection device 20, and the support shaft 16. And a first rotating arm 40 and a second rotating arm 42 are formed of a cylindrical rotating body 44 integrally fixed in a state of being separated in the axial direction of the support shaft 16. . The first rotating arm 40 and the second rotating arm 42 are fixed to the rotating body 44 so as to protrude at an angle of approximately 90 ° in a side view of FIG. 1B, and the pedal member 14 is not depressed. At the time of operation, as shown in FIG. 1 (b), the second turning arm 42 hangs downward and the first turning arm 40 is held at the initial position protruding substantially horizontally toward the rear side of the vehicle. The state in which the rotating member 18 is held at the initial position is the original position of the brake pedal device 10, and the initial position of the rotating member 18 is defined by the projecting dimension of the rod 22 from the brake booster. Alternatively, it may be defined by a stopper (not shown) disposed on the bracket 12.
[0023]
The second rotating arm 42 connected to the rod 22 via the load detection device 20 is provided on the side close to the support plate 12c, that is, on the side away from the adjustment link 30 and the pedal member 14, while being supported. The first rotating arm 40 positioned on the plate 12b side and connected to the pedal member 14 via the interlocking link 36, and the pedal member 14 are in a common plane perpendicular to the support shaft 16. A connecting portion bent in a crank shape is provided so as to be positioned, and an interlocking link 36 is connected to the connecting portion.
[0024]
The adjusting link 30 is connected to an adjusting means 50 at an intermediate portion thereof, and is rotated in the front-rear direction of the vehicle around a position where the adjusting link 30 hangs down substantially around the support shaft 16 and is positioned at a predetermined rotating position. It has become so. The adjusting means 50 includes a screw shaft 54 that is rotationally driven by an electric motor 52 as a driving means, and a nut member 56 that is screwed to the screw shaft 54. The electric motor 52 is parallel to the support shaft 16. The nut member 56 is mounted on the adjustment link 30 so as to be relatively rotatable about an axis parallel to the support shaft 16. Then, when the screw shaft 54 is rotationally driven and the nut member 56 is moved in the axial direction, the adjustment link 30 is rotated around the support shaft 16. The lead of the screw shaft 54 is small, and even when an axial load is applied to the screw shaft 54 and the nut member 56 when the stepping portion 14p is depressed, the lead does not rotate and move in the axial direction. By stopping, the adjustment link 30 is positioned at a certain rotational position.
[0025]
The interlock link 36 cooperates with the adjustment link 30 to position the pedal member 14 in a predetermined posture, and when the adjustment link 30 is rotated around the support shaft 16 by the adjustment means 50 during the non-depressing operation, the interlocking link 36 rotates. With the movement, the interlocking link 36 is also rotated around the third connecting shaft 34, whereby the pedal member 14 is moved in an arc in the front-rear direction of the vehicle, and the stepping portion 14p is moved to the front side moving end and the rear side moving end. Is positioned at any position between. In this embodiment, in a side view shown in FIG. 1B, the shape connecting the support shaft 16, the first connecting shaft 28, the second connecting shaft 32, and the third connecting shaft 34 is a parallelogram. Each link length is determined, and when the adjustment link 30 is rotated around the support shaft 16, the pedal member 14 is moved in a circular arc in parallel in the longitudinal direction of the vehicle as indicated by an arrow A. Accordingly, the pedal member 14 can be moved in the front-rear direction of the vehicle according to the physique of the driver, and the driving operation is facilitated.
[0026]
Then, when the adjustment link 30 is positioned at a predetermined rotation position by the adjustment means 50, the pedal portion 14p is depressed and the pedal member 14 is rotated counterclockwise of the first connecting shaft 28. The rotation member 18 is rotated counterclockwise through the link 36, and the rod 22 is pressed forward of the vehicle through the load detection device 20 to mechanically generate a braking force.
[0027]
The load detection device 20 is (a) disposed on the second rotation arm 42 so as to be relatively rotatable around a fourth connection shaft 60 parallel to the support shaft 16 and to a pedal force lever 62 connected to the rod 22. And (b) urging the pedal force lever 62 in the output direction of the rod 22, that is, in the right direction in FIG. 1 (b), and at the time of rotation of the second rotation arm 42 accompanying the depression operation of the pedal member 14, A compression coil spring 64 that allows the pedal force lever 62 to rotate relative to the second rotation arm 42 counterclockwise with respect to the second rotation arm 42 in response to the stepping operation force (transmission load) by the reaction force 22. And (c) a displacement sensor 66 that is disposed on the second rotation arm 42 and detects the relative rotation of the pedal force lever 62. The compression coil spring 64 corresponds to an elastic body, and the compression coil spring 64 and the pedal force lever 62 correspond to an elastic coupling device that couples the second rotating arm 42 and the rod 22 so as to be relatively displaceable according to a transmission load. . The rod 22 is connected to a pedaling force lever 62 so as to be relatively rotatable around a connecting pin 68 parallel to the support shaft 16, and the displacement sensor 66 is turned on and off with a predetermined amount of rotation, that is, a stepping operation force as a boundary. The detection value may be changed or the detection value may change continuously according to the amount of rotation.
[0028]
The second turning arm 42 is bent so that the tip side connected to the rod 22 is separated from the first turning arm 40 in the axial direction of the support shaft 16, and (a) the first turn is performed at the intermediate portion. An inclined portion 42a that is inclined so as to be separated from the moving arm 40; and (b) a distal end coupling portion 42b that is provided continuously to the distal end side of the inclined portion 42a and is substantially perpendicular to the support shaft 16. , And is configured. The pedal force lever 62 of the load detection device 20 is attached to the tip connecting portion 42b so as to be relatively rotatable around the fourth connecting shaft 60, and extends from the tip connecting portion 42b to the inclined portion 42a. The compression coil spring 64 and the displacement sensor 66 are disposed on the inclined portion 42a.
[0029]
Thus, the brake pedal device 10 according to the present embodiment includes the first rotating arm 40 connected to the interlocking link 36 and the second rotating arm 42 connected to the rod 22 via the load detection device 20. Since the support member 16 is spaced apart from the support shaft 16 via the rotating body 44, the interlock link 36 and the pedal member 14 may move in the longitudinal direction of the vehicle as the pedal member 14 is adjusted in the longitudinal direction. There is no possibility of interference with the load detection device 20, and the stepping operation force can be detected by the load detection device 20 without impairing the longitudinal adjustment function.
[0030]
Further, since the second rotation arm 42 is bent so as to be separated from the first rotation arm 40 and the load detection device 20 is disposed along the bent shape, the base of the second rotation arm 42 is arranged. A brake capable of making the end portion approach the first rotating arm 40 and suppressing the protrusion of the load detection device 20 in the width direction (the axial direction of the support shaft 16), including the load detection device 20. The pedal device 10 can be compactly disposed in a limited space in front of the driver's seat.
[0031]
As mentioned above, although the Example of this invention was described in detail based on drawing, these are one embodiment to the last, and this invention is implemented in the aspect which added the various change and improvement based on the knowledge of those skilled in the art. be able to.
[Brief description of the drawings]
1A and 1B are diagrams for explaining an embodiment in which the present invention is applied to a vehicle brake pedal device, where FIG. 1A is a front view and FIG. 1B is a right side view;
[Explanation of symbols]
10: Brake pedal device (vehicle pedal device) 12: Bracket 14: Pedal member 16: Support shaft (first support shaft, second support shaft) 18: Rotating member 20: Load detecting device 22: Rod (output member) 28: first connecting shaft 30: adjusting link 32: second connecting shaft 34: third connecting shaft 36: interlocking link 40: first rotating arm 42: second rotating arm 42a: inclined portion 42b: tip connecting portion 44 : Rotating body 50: Adjusting means 60: Fourth connecting shaft 62: Treading force lever 66: Displacement sensor

Claims (3)

A bracket fixed integrally to the vehicle body,
An adjustment link which is provided so as to be rotatable around a first support shaft disposed on the bracket, and is rotated around the first support shaft by an adjusting means and positioned at a predetermined rotation position;
A pedal that is connected to the adjustment link so as to be relatively rotatable around a first connecting shaft parallel to the first support shaft, and that is turned around the first connecting shaft by a stepping operation. Members,
A pivot member disposed on the bracket so as to be pivotable about a second support shaft parallel to the first support shaft, coupled to the output member, and positioned at a substantially constant initial position;
The pedal member and the rotation member are disposed across the pedal member and provided in parallel with the first support shaft at a position forming a quadrangle with the first support shaft and the first connection shaft in a side view. The pedal member and the pivot member are coupled to the second coupling shaft and the third coupling shaft so as to be relatively pivotable, and the pedal member is positioned in a fixed posture in cooperation with the adjustment link. The pedal member is moved in the front-rear direction of the vehicle by being rotated around the third connecting shaft as the adjustment link is rotated, while the adjustment link is positioned at a predetermined rotation position. An interlocking link for displacing the output member by rotating the rotating member from the initial position when the pedal member is depressed and the pedal member is rotated about the first connecting shaft;
In the vehicle pedal device having adjustable front and rear,
The rotating member includes a first rotating arm connected to the interlocking link and a second rotating arm connected to the output member spaced apart in the axial direction of the second support shaft . In addition, while the first rotating arm and the second rotating arm are integrally configured,
A vehicular pedal device that can be adjusted in the front-rear direction is provided with a load detecting device that detects a transmission load between the second rotating arm and the output member. The second pivot arm has a front Symbol inclined portion bent so as to be separated from the first rotation arm in the axial direction of the second support shaft, with continuously provided on the tip side of the inclined portion A tip connecting portion perpendicular to the second support shaft,
2. The vehicle pedal device according to claim 1, wherein the load detection device is disposed so as to extend along the inclined portion from the tip connecting portion to the inclined portion. . The load detection device includes:
The tip end of the second turning arm is attached to the tip connecting portion so as to be rotatable around a fourth connecting shaft parallel to the second support shaft, and extends from the tip connecting portion while bending along the inclined portion. And is connected to the output member at a portion between the fourth connecting shaft and the inclined portion, and when the second rotating arm is rotated in accordance with the stepping operation of the pedal member, the output member is counteracted. A pedal force lever that is rotated relative to the second rotation arm about the fourth connecting shaft by force;
A displacement sensor disposed on the inclined portion of the second rotating arm and detecting relative rotation of the pedal force lever with respect to the second rotating arm.
The vehicular pedal device according to claim 2, wherein the vehicular pedal device is adjustable.

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