JP2008195225A - Accelerator pedal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an accelerator pedal device capable of inexpensively providing high strength by integrally arranging a housing, and capable of easily incorporating a pedal root part and a rotor into the housing. <P>SOLUTION: A wedge 23 (a joining means) is arranged on the outer peripheral side of a pedal projection part 15, for joining the pedal root part 5 and the rotor 2 by a biting-in force, by biting in an outer peripheral corner part of a rotor projection part 16, by rotating the rotor 2 in the negative direction to the pedal root part 5. After being installed in the housing, joining by the wedge 23 is released when torque in the normal direction is applied to the rotor 2 to the pedal root part 5 by the action of a return spring, and a first inclined part 17 of the pedal projection part 15 and a second projection part 18 of the rotor projection part 16, abut on each other in a position in ordinary use. Thus, the high strength can be inexpensively provided by integrally arranging the housing, and the rotor 2 can be easily incorporated into the housing together with the pedal root part 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an accelerator pedal device including a stepping hysteresis generating mechanism (hereinafter referred to as a stepping hiss mechanism) that applies a stepping force (operation feeling) to the accelerator pedal in accordance with the opening degree (stepping amount) of the accelerator pedal.

Conventionally, in order to obtain an accelerator operation feeling, the accelerator pedal device has a depression hiss that causes a difference in the required stepping force when the stepping force is increased during acceleration and when the stepping force is decreased during acceleration. A mechanism is provided.
This stepping hiss mechanism includes a thrust force generating means for converting the depression force (rotational force) of the accelerator pedal into a separation force in the direction of the rotation axis, and a resistance for generating a resistance force on the accelerator pedal by the separation force generated by the thrust force generation means. And force generating means. The stepping hiss mechanism includes a type in which the separating force generated by the thrust force generating means is received inside the accelerator pedal, and a type in which the separating force generated by the thrust force generating means is received inside the housing.

In the following, an accelerator pedal device equipped with a stepping hiss mechanism that receives the separation force generated by the thrust force generating means inside the housing will be described.
The thrust force generating means is provided with a rotor that comes into contact with the base portion of the accelerator pedal through an inclined portion, and depresses the accelerator pedal against the urging force of the return spring (biasing means). Thus, the rotational force (rotational force in the first rotational direction) applied to the accelerator pedal is converted into the axial direction by the inclined portion, and a separation force that separates the pedal root portion and the rotor in the axial direction is generated.
The resistance force generating means is provided with resistance applying means (for example, a friction plate for providing an appropriate rotational resistance) on at least one end face of the pedal root portion and the rotor. At least one of the end faces is pressed by the resistance applying means, thereby giving an appropriate depression force to the accelerator pedal.

On the other hand, there is a demand to accommodate and use the pedal base and the rotor in the housing for the purpose of unitizing the accelerator pedal device and preventing dust, dust, etc. from adhering to the rotating base of the accelerator pedal device. is there.
Next, the prior art of the housing used for an accelerator pedal apparatus is demonstrated with reference to FIG. 4, FIG.
FIG. 4 shows a housing main body J1 and a cover J2, which are divided and used by joining the housing main body J1 and the cover J2 with a joining means such as a screw (for example, Patent Document 1: This Patent Document). 1 is a type in which the separation force generated by the thrust force generating means is received inside the accelerator pedal.

When the type in which the separation force generated by the thrust force generating means is received inside the housing is used in combination with the housing joint type shown in FIG. 4, the shaft of the housing body J1 is mounted after the pedal root and the rotor are incorporated into the housing body J1. The cover J2 is fixed using a screw or the like from one side of the direction.
However, it is necessary to increase the joining strength in the axial direction of the housing main body J1 and the cover J2 that receives the separation force between the pedal base portion and the rotor. This increases the joining strength, which increases the cost and increases the number of parts. This will increase costs.

As shown in FIG. 5, a housing J3 is integrally provided with respect to the above-described conventional technology (see, for example, Patent Document 2).
When the type in which the separation force generated by the thrust force generating means is received inside the housing is used in combination with the integral type housing J3 shown in FIG. 5, the pedal base portion and the rotor are axially provided by integrally providing the housing J3. A high strength against the separation can be easily obtained, and the number of parts is small, so that the cost can be suppressed.

When the housing J3 is provided integrally as described above, it is necessary to incorporate the pedal root portion and the rotor into the housing J3 from the opening J4 provided in the housing J3.
For this reason, in the state which assembled | attached the rotor to the pedal base part, it accommodates in the housing J3 from the opening part J4.
However, since the rotor is a separate member adjacent to the pedal root portion, even if the rotor is simultaneously inserted into the housing J3 from the opening J4 together with the pedal root portion, the rotor is likely to drop off from the pedal root portion. For this reason, when the housing J3 is provided integrally, it becomes difficult to incorporate the rotor together with the pedal root portion in the housing J3, resulting in poor productivity.
JP 2004-108214 A US Patent Application Publication No. 2003/112003

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an accelerator pedal device in which a housing is integrally provided to reduce costs and a rotor can be easily incorporated into a housing together with a pedal root portion. On offer.

[Means of claim 1]
The accelerator pedal device according to claim 1 has a second rotation opposite to the first rotation direction (the rotation direction in which the accelerator opening increases) with respect to the rotor at least one of the pedal root or the rotor. By rotating in the direction, a coupling means for biting into the other side of the pedal root or the rotor and coupling the pedal root and the rotor with a biting force is provided.
Since the rotor can be held at the pedal root by the coupling means, the rotor is inserted together with the pedal root from the outside of the opening of the housing to the inside of the opening while the rotor is held at the pedal root. be able to. For this reason, when the rotor is incorporated into the housing together with the pedal root portion, there is no problem that the rotor falls off from the pedal root portion, and the rotor can be easily incorporated into the housing together with the pedal root portion.

Then, after assembling the assembly (pedal base + rotor) in the housing, the assembly is given a rotational force in the first rotational direction (for example, a return spring is assembled and the urging force of the return spring is applied to the rotor). The coupling means is released.
As described above, the assembly (pedal root portion + rotor) can be easily assembled from the opening of the housing provided integrally. That is, the housing can be provided integrally to reduce the cost, and the rotor can be easily incorporated into the housing together with the pedal root portion.

[Means of claim 2]
The accelerator pedal device according to claim 2 is provided with a pedal convex portion and a rotor convex portion on the pedal root portion and the rotor, and a depression force (rotational force) of the accelerator pedal by the inclined portion provided on the pedal convex portion and the rotor convex portion. Is installed with a thrust force generating means for converting the pedal base portion and the separation force in the rotation axis direction of the rotor, but since the housing is provided integrally, the housing can receive the separation force with high strength. it can. That is, it is possible to obtain a high strength at a low cost by providing the housing integrally, and it is possible to easily incorporate the rotor together with the pedal root portion in the housing.

[Means of claim 3]
The coupling means in the accelerator pedal device according to claim 3 is provided on one outer peripheral side of the pedal convex portion or the rotor convex portion, and the other outer peripheral portion of the pedal convex portion or the rotor convex portion is caused by the rotational force in the second rotational direction. A wedge that presses inward.

The accelerator pedal device of the best mode is rotatably supported, and is disposed adjacent to an accelerator pedal including a pedal root portion provided with a plurality of pedal protrusions on an end surface in the rotation axis direction in the rotation axis direction of the pedal root portion. A rotor provided with a plurality of rotor protrusions capable of coming into contact with a plurality of pedal protrusions in a rotational direction, a return spring that urges the rotor in one rotation direction, and a pedal root portion and the rotor in an axial direction. And a housing that covers the assembled assembly.
A pedal protrusion that applies a rotational force in the first rotational direction that increases the accelerator opening to the accelerator pedal against the urging force of the return spring and contacts the rotor when the pedal root portion is rotated in the first rotational direction. The first abutting portion between the first portion and the rotor convex portion has an inclined portion that converts the rotational force in the first rotational direction applied to the accelerator pedal into a separating force that separates the pedal root portion and the rotor in the axial direction. Is provided.
The housing receives a separation force between the rotor and the pedal root portion, and a first side wall covering one side of the assembly body in the axial direction and a second side wall covering the other side of the assembly body in the axial direction are integrally provided. Provided with an opening into which the assembly can be incorporated.
Further, at least one of the pedal root portion or the rotor bites into the other of the pedal root portion or the rotor by rotating the pedal root portion in the second rotation direction opposite to the first rotation direction with respect to the rotor. A coupling means for coupling the pedal base portion and the rotor with a biting force is provided.

Below, an example of the accelerator pedal apparatus to which this invention was applied is demonstrated with reference to FIGS.
[Structure of accelerator pedal device]
First, the basic structure of an accelerator pedal device (electronic accelerator) that electrically detects the accelerator opening will be described with reference to FIGS. 2 and 3.
The accelerator pedal device is installed at the foot of the vehicle driver and is operated by the stepping force of the driver's foot, and includes an accelerator pedal 1, a rotor 2, a pedal shaft 3, a return spring (not shown), and a rotation angle. A sensor (not shown) and a housing 4 are included.

  The accelerator pedal 1 is rotatably supported by a pedal shaft 3 and is given a stepping force by a driver's foot. A pedal root portion 5 rotatably supported by the pedal shaft 3 and a driver's foot are stepped on. Pedal 6, pedal base 5 and pedal rod (arm) 7 that couples pedal 6. The pedal base 5 and the pedal 6 are made of synthetic resin (polyacetal, polyamide, etc.). The pedal rod 7 is made of synthetic resin (polyacetal, polyamide, etc.) or metal (iron, etc.). When the pedal rod 7 is made of synthetic resin, the pedal root portion 5 or the pedal 6 is less. Alternatively, it may be provided integrally with one of them. Further, the pedal 6 may be integrated with the pedal rod 7, or can be rotated within a predetermined rotation angle with respect to the pedal rod 7, and is urged in one rotation direction by a spring or the like. It may be.

The pedal root portion 5 covers the periphery of the pedal shaft 3 in a ring shape, and has a predetermined thickness in the rotation axis direction (the axial direction of the pedal shaft 3 in a state assembled to the pedal shaft 3).
The rotor 2 is disposed adjacent to the rotation direction of the pedal root portion 5, and the pedal shaft 3 is brought into contact with a first inclined portion 17 of a pedal convex portion 15 described later and a second inclined portion 18 of the rotor convex portion 16. Like the pedal root portion 5, it is supported by a synthetic resin (polyacetal, polyamide, etc.). The rotor 2 covers the periphery of the pedal shaft 3 in a ring shape, and the pedal base portion 5 and the rotor 2 are subjected to a stepping force applied to the accelerator pedal 1 on the opposed surfaces of the pedal root portion 5 and the rotor 2 in the axial direction. Thrust force generating means for converting into an axial separation force is provided. This thrust force generating means will be described later.

  As described above, the pedal shaft 3 rotatably supports the pedal root portion 5 of the accelerator pedal 1 and the rotor 2. The pedal shaft 3 of this embodiment is a synthetic resin (polyacetal) having excellent durability. , Polyamide or the like) or metal (iron or the like), and is rotatably supported by the housing 4 via the first and second bearings 8 and 9.

  The return spring is a metallic coil spring (torsion coil spring, compression coil spring, tension coil spring, etc.) that returns the accelerator pedal 1 to the initial position, one end of the return spring is supported by the housing 4, and the other end of the return spring is connected to the rotor 2. It is supported by the provided lever portion 11 and assembled in a state in which a restoring force is generated. The accelerator pedal 1 is stopped at a predetermined position (initial position of the accelerator pedal 1) by a restoring force of a return spring by a stopper (not shown), and the accelerator pedal 1 is not operated when the accelerator pedal 1 is not operated. The pedal 1 is returned to the initial position.

  The rotation angle sensor is a well-known sensor that electrically detects a relative rotation amount between a fixed member (for example, the housing 4) and a rotation member (for example, the rotor 2), and the sensor output is an ECU (an ECU that controls the engine). Abbreviated to engine control unit).

The housing 4 coaxially supports the first and second bearings 8 and 9, and the pedal root portion 5 and the rotor 2 are disposed between the axial directions of the first and second bearings 8 and 9. The rotor 2 is provided in a shape that covers the rotor 2 and is formed of a synthetic resin (polyacetal, polyamide, or the like). A combination of the pedal base 5 and the rotor 2 in the axial direction is referred to as an assembly A.
The housing 4 includes a first side wall 13 that covers one side in the axial direction of the assembly A (the pedal root portion 5 side: the right side in FIG. 3) and a second side wall 14 that covers the other side in the axial direction of the assembly A (the rotor 2). The housing 4 will be described later.
The housing 4 is integrally provided with a vehicle body attachment portion (flange or the like), and the accelerator pedal device is fixed to the vehicle by fixing the vehicle body attachment portion to the vehicle using a fastening member such as a screw. .

(Explanation of stepping hiss mechanism)
The accelerator pedal device is provided with a stepping hiss mechanism that gives the accelerator pedal 1 a stepping force (operation feeling) corresponding to the opening degree (stepping amount) of the accelerator pedal 1.
This stepping hiss mechanism generates thrust force generating means for converting the stepping force (rotational force) of the accelerator pedal 1 into a separation force in the direction of the rotation axis, and a resistance force generated on the accelerator pedal 1 by the separation force generated by the thrust force generation means. And a resistance force generating means.

The thrust force generating means will be described with reference to FIGS.
A plurality of pedal convex portions 15 are provided integrally with the pedal root portion 5 on the end surface in the rotation axis direction of the pedal root portion 5. The plurality of pedal convex portions 15 are provided at equal intervals on the outer peripheral side of the end surface of the pedal root portion 5 facing the rotor 2.
On the other hand, the rotor 2 adjacently disposed in the rotational axis direction of the pedal root portion 5 is provided with a plurality of rotor convex portions 16 that are in contact with the plurality of pedal convex portions 15 in the rotational direction. The plurality of rotor convex portions 16 are provided at equal intervals on the outer peripheral side of the end surface of the rotor 2 facing the pedal root portion 5.

As described above, the pedal convex portion 15 and the rotor convex portion 16 are in contact with each other in the rotational direction when the pedal root portion 5 and the rotor 2 are relatively rotated. Each of the contact portions (first contact portions) of the pedal convex portion 15 and the rotor convex portion 16 that abut when rotating in the first rotation direction (rotation direction in which the accelerator opening increases) has a first rotation. There are provided first and second inclined portions 17 and 18 for converting the rotational force in the direction into a separation force that separates the pedal root portion 5 and the rotor 2 in the axial direction.
By being provided in this way, as the accelerator pedal 1 is depressed against the urging force of the return spring, the separation force according to the depression amount (force that causes the pedal root portion 5 and the rotor 2 to separate in the axial direction). Acts on the pedal root 5 and the rotor 2, and the end surfaces of the pedal root 5 and the rotor 2 are pressed against the housing 4.

The resistance force generating means will be described with reference to FIG.
Between the housing 4 and the assembly A, there is provided resistance force generation means for generating a resistance force on the accelerator pedal 1 by the separation force generated by the thrust force generation means described above.
This resistance force generating means is provided with resistance applying means on at least one end face of the pedal root portion 5 and the rotor 2.
Specifically, in this embodiment, an appropriate rotational resistance is applied to the pedal root portion 5 by the pressing force that the pedal root portion 5 is pressed against the first side wall 13 by the separation force between the first side wall 13 and the pedal root portion 5. The first friction plate 21 is provided, and the rotor 2 is given a suitable rotational resistance by the pressing force with which the rotor 2 is pressed against the second side wall 14 by the separation force between the second side wall 14 and the rotor 2. Two friction plates 22 are provided.
By providing in this way, the end surfaces of the pedal root 5 and the rotor 2 are strongly pressed against the first and second friction plates 21 and 22 as the axial separation force between the pedal root 5 and the rotor 2 increases. Thus, rotational resistance is applied to the pedal root portion 5 and the rotor 2, and as a result, an appropriate depression force corresponding to the depression amount is applied to the accelerator pedal 1.

[Features of Example 1]
In the accelerator pedal device in which the pedal root portion 5 of the accelerator pedal 1 and the rotor 2 are assembled inside the housing 4, for example, the housing 4 is disposed on the first side wall 13 for the purpose of improving the assembly property of the assembly A. The housing body provided and the cover provided with the second side wall 14 are provided separately, the assembly A is assembled inside the housing body, and then the cover is joined to the housing 4 body with screws or the like. Can be considered.
However, as described above, in the type in which the separation force generated by the thrust force generating means is received inside the housing, the separation force that separates the pedal root portion 5 and the rotor 2 in the axial direction according to the depression amount of the accelerator pedal 1 is provided in the housing 4. Therefore, it is necessary to increase the bonding strength between the housing body and the cover so as not to be damaged by the separation force. As described above, the housing body and the cover that are separately provided cause an increase in cost in order to increase the bonding strength, and also increase the cost due to an increase in the number of parts.

On the other hand, in the present embodiment, it is conceivable that the housing 4 is provided integrally without being divided. By providing the housing 4 integrally, the pedal base portion 5 and the rotor 2 can easily have high strength against the axial separation force, and the number of components can be reduced, thereby reducing the cost.
Therefore, in this embodiment, the housing 4 is provided integrally. That is, the housing 4 of the present embodiment has a first side wall 13 that covers one side of the assembly A in the axial direction and a second side wall 14 that covers the other side in the axial direction of the assembly A. As shown in FIG. 2, an opening B is formed in a part of the housing 4 so that the assembly A can be incorporated into the housing 4 from the outside of the housing 4.

Thus, when the housing 4 is provided integrally, it is necessary to incorporate the pedal base portion 5 of the accelerator pedal 1 and the rotor 2 into the housing 4 from the opening B provided in the housing 4. .
However, since the rotor 2 is a separate member adjacent to the pedal root portion 5, even if the rotor 2 is simultaneously inserted into the housing 4 from the opening B together with the pedal root portion 5, the rotor 2 is dropped from the pedal root portion 5. This makes it difficult to incorporate the rotor 2 together with the pedal root portion 5 into the housing 4.

Therefore, in the accelerator pedal device of this embodiment, at least one of the pedal root portion 5 and the rotor 2 rotates the pedal root portion 5 with respect to the rotor 2 in the second rotation direction opposite to the first rotation direction. Thus, there is provided a coupling means that bites into the pedal root portion 5 or the other of the rotor 2 and couples the pedal root portion 5 and the rotor 2 with a biting force.
Specifically, the coupling means is provided at the second contact portion between the pedal convex portion 15 and the rotor convex portion 16 that come into contact with the rotor 2 when the pedal root portion 5 is rotated in the second rotational direction. The coupling means of this embodiment is provided on the outer peripheral side of the pedal convex portion 15 as shown in FIG. 1, and as shown in FIG. 1 (b), the rotor convexity is generated by the rotational force in the second rotational direction. This is a wedge 23 that presses the outer periphery of the portion 16 inward.
Note that the coupling force between the pedal base 5 and the rotor 2 by the coupling means is set so as to be reliably released by the rotational force in the first rotational direction provided by the return spring.

  Next, the procedure for assembling the assembly A will be described by taking the case where the rotor 2 is rotated with the accelerator pedal 1 as a reference, unlike the description of the first and second rotational directions described above. The negative direction described below is the first rotational direction (the rotational direction in which the accelerator opening increases) and the rotational direction in which the return spring applies a restoring force to the lever unit 11 in the relative rotational direction of the pedal base 5 and the rotor 2. ). Further, the forward direction described below corresponds to the second rotational direction in the relative rotational direction of the pedal base 5 and the rotor 2.

(1) First, the pedal root portion 5 and the rotor 2 are assembled so that the pedal convex portion 15 and the rotor convex portion 16 are engaged in the axial direction.
(2) Next, as shown in the solid line in FIG. 1A and FIG. 1B, the rotor 2 is moved in a positive direction with an appropriate torque (the wedge 23 is convex to the rotor) with respect to the pedal root portion 5 of the accelerator pedal 1. The rotor 2 bites into the outer peripheral corner portion of the portion 16 and is rotated by the torque that the rotor 2 is held by the pedal root portion 5 by the biting force.
Thereby, the wedge 23 bites into the outer peripheral corner portion of the rotor convex portion 16, and the rotor 2 is held by the pedal root portion 5 by the biting force.
(3) Next, as shown in FIG. 2, the rotor 2 is inserted into the opening B of the housing 4 together with the pedal root portion 5 while the rotor 2 is held by the pedal root portion 5 by the bite of the wedge 23. To do.

(4) Next, the pedal shaft 3 and the first and second friction plates 21 and 22 are assembled in the housing 4.
(5) Next, the return spring is assembled, and the restoring force of the return spring is applied to the lever portion 11 of the rotor 2.
Then, the restoring force of the return spring applied to the lever portion 11 acts on the rotor 2 in the negative direction. Here, the accelerator pedal 1 is stopped at a predetermined position (initial position of the accelerator pedal 1) by the restoring force of the return spring by the stopper described above. For this reason, the restoring force of the return spring acts on the side where the wedge 23 is released.

As a result, as shown in the broken line of FIG. 1A and FIG. 1C, the bite of the wedge 23 is released, and the first inclined portion 17 of the pedal convex portion 15 and the second inclined portion of the rotor convex portion 16 are released. 18 abuts. That is, the 1st, 2nd inclination parts 17 and 18 contact | abut in the normal use position of an accelerator pedal apparatus.
Thus, the assembly is completed.
After the assembly is completed, the rotation range (the rotation of the pedal root portion 5 and the rotor 2) until the first and second inclined portions 17 and 18 are in contact with each other and the wedge 23 is in contact with the rotor convex portion 16. (Moving range) is the play angle between the pedal base 5 and the rotor 2 {see FIG. 1 (c)}.

(Effect of Example 1)
As described above, the accelerator pedal device according to the present embodiment allows the pedal root portion 5 to hold the rotor 2 by causing the wedge 23 (coupling means) provided on the pedal convex portion 15 to bite into the rotor convex portion 16. Therefore, the rotor 2 can be inserted together with the pedal root portion 5 into the opening B from the outside of the opening B of the housing 4 in a state where the rotor 2 is held by the pedal root portion 5 at the time of assembly. For this reason, when the rotor 2 is incorporated into the housing 4 together with the pedal root portion 5, there is no problem that the rotor 2 falls off from the pedal root portion 5, and the rotor 2 together with the pedal root portion 5 can be easily incorporated into the housing 4. it can.
Thus, since the assembly A (pedal root portion 5 + rotor 2) can be easily assembled from the opening B of the housing 4, high assemblability can be obtained even if the housing 4 is provided integrally. That is, the housing 4 is integrally provided to obtain high strength at a low cost, and the rotor 2 can be easily incorporated into the housing 4 together with the pedal root portion 5.

[Modification]
In the above-described embodiment, an example in which the wedge 23 (coupling means) is provided on the outer peripheral side of the pedal convex portion 15 is shown, but the position where the wedge 23 (coupling means) is provided is not limited. For example, the wedge 23 (coupling means) is provided on the inner peripheral side of the pedal convex portion 15, and the inner peripheral portion of the rotor convex portion 16 is pressed outward by the rotational force in the second rotational direction (positive direction). 23 (coupling means) may bite into the rotor protrusion 16.
In the above embodiment, an example in which the wedge 23 (coupling means) is provided on the pedal convex portion 15 is shown, but the wedge 23 (coupling means) may be provided on the rotor convex portion 16. For example, by providing the wedge 23 (coupling means) on the outer peripheral side or inner peripheral side of the rotor convex portion 16 and pressing the pedal convex portion 15 inward or outward by the rotational force in the second rotational direction (positive direction), The wedge 23 (coupling means) may bite into the pedal convex portion 15.
In the above-described embodiment, an example in which the wedge 23 (coupling means) is provided only on the pedal convex portion 15 is shown. However, the wedge 23 (coupling means) is provided on both the pedal convex portion 15 and the rotor convex portion 16 so The holding power may be increased.

In the above embodiment, an example in which the wedge 23 is used as an example of the coupling means has been described. However, a part of the pedal root 5 and a part of the rotor 2 can be coupled and held by biting, such as a detent mechanism having a weak coupling force. Any other structure may be employed as the coupling means.
In the above embodiment, the example in which the present invention is applied to the assembly of the rotor 2 of the stepping hiss mechanism has been shown. However, the present invention can be used to assemble the rotor 2 different from the stepping hiss mechanism. For example, the present invention can be employed even when the rotor 2 used as a rotation angle sensor (in this case, for example, a magnetic force generating means on which a magnet is mounted) is assembled.

(A) is explanatory drawing of the assembly state of the pedal base part of an accelerator pedal, and a rotor, (b), (c) is an expansion perspective view of the I section of (a) (Example 1). (Example 1) at the time of assembling the accelerator pedal which assembled | attached the rotor to a housing. (Example 1) which is sectional drawing in alignment with the rotating shaft direction of an accelerator pedal apparatus. It is a disassembled perspective view of an accelerator pedal apparatus (prior art 1). It is a disassembled perspective view of an accelerator pedal apparatus (prior art 2).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Accelerator pedal 2 Rotor 4 Housing 5 Pedal root part 13 1st side wall 14 2nd side wall 15 Pedal convex part 16 Rotor convex part 17 1st inclination part 18 2nd inclination part 23 Wedge (joining means)
A Assembly B Opening

Claims (3)

A pedal base of an accelerator pedal that is rotatably supported;
A rotor arranged adjacent to the pedal root in the rotational axis direction;
A return spring that urges the rotor in one direction of rotation;
A first side wall that covers one of the assembly in an axial direction in which the pedal root portion and the rotor are assembled in the axial direction, and a second side wall that covers the other in the axial direction of the assembly are integrally provided; A housing having an opening into which the assembly can be incorporated;
By rotating at least one of the pedal root or the rotor with respect to the rotor in a second rotation direction opposite to the first rotation direction in which the accelerator opening is increased, An accelerator pedal device comprising a coupling means for biting into a pedal root or the other of the rotor and coupling the pedal root with the rotor by a biting force. The accelerator pedal device according to claim 1,
The pedal root portion is provided with a plurality of pedal convex portions on the end surface in the rotation axis direction,
The rotor is provided with a plurality of rotor protrusions that can come into contact with the plurality of pedal protrusions in the rotation direction,
A first contact between the pedal convex portion and the rotor convex portion that abuts when the rotational force in the first rotational direction is applied to the pedal root portion against the rotor against the biasing force of the return spring. The contact portion is provided with an inclined portion that converts the rotational force in the first rotation direction applied to the accelerator pedal into a separation force that separates the pedal root portion and the rotor in the axial direction,
The coupling means is provided at a second abutting portion between the pedal convex portion and the rotor convex portion that abuts when the pedal root portion is rotated in the second rotation direction with respect to the rotor. Accelerator pedal device. The accelerator pedal device according to claim 2,
The coupling means is provided on one outer peripheral side of the pedal convex part or the rotor convex part, and the other outer peripheral part of the pedal convex part or the rotor convex part is brought inward by a rotational force in the second rotational direction. An accelerator pedal device characterized by being a wedge to be pressed.

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