JP6706586B2 - Vehicle operation pedal device - Google Patents

Description

The present invention relates to a vehicle operation pedal device in which a stroke sensor detects a stroke of a pedal via a sensor lever.

BACKGROUND ART Conventionally, various techniques have been proposed for a vehicle operation pedal device in which a stroke sensor detects a stroke of a pedal via a sensor lever.

For example, the technique described in Patent Document 1 below is a stroke sensor unit for a brake pedal device in which one end of a pedal arm is installed on a hinge shaft whose both ends are rotatably mounted on a frame, and is the same as the hinge shaft. A sensor unit attached to one side of the frame on the axis through a bracket, a sensor lever having one end connected to a rotation shaft of the sensor unit, a pin arm having one end connected to the hinge shaft, and a sensor lever other than the sensor lever. One end is connected to one end, and the other end of the pin arm is connected to the other side. A sensor pin is included.

JP, 2014-118139, A

That is, in the stroke sensor unit for a brake pedal device described in Patent Document 1, the stroke of the pedal arm is transmitted to the sensor unit via the pin arm, the sensor pin, and the sensor lever. However, it is desired to reduce the number of parts used to transmit the stroke of the pedal arm to the sensor unit from the viewpoint of weight reduction and cost reduction.

Therefore, the present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a vehicle operation pedal device in which the sensor lever of a stroke sensor is directly connected to a pedal to reduce weight and cost. And

The invention according to claim 1 made in order to solve this problem is a vehicle operation pedal device, which is a support bracket fixed to a vehicle, and a first support pivotally supported by the support bracket and rotated by a stepping operation. A second pedal, which is connected to the first pedal via a link member, is pivotally supported by a support bracket, and pivots in conjunction with the depressed first pedal, and an operating rod is pivotally supported at an upper end portion . A pedal and a stroke sensor coaxially fixed to the second pedal on the support bracket, and the stroke sensor includes a sensor lever connected to the second pedal and transmitting a stroke of the second pedal to the stroke sensor. And

Here, the stroke sensor detects the stroke of the first pedal through the stroke of the second pedal that rotates in conjunction with the first pedal that has been depressed.

The invention according to claim 2 is the vehicle operation pedal device according to claim 1, wherein the sensor lever is locked to an opening provided in the second pedal, so that the sensor lever functions as the second pedal. It is characterized by being connected.

The invention according to claim 3 is the vehicle operation pedal device according to claim 1 or 2, wherein the second pedal includes a first plate member and a second plate member that are overlapped with each other, The first plate member is curved and protrudes in the direction in which the stroke sensor is fixed, and the sensor lever is connected to the protruding region.

The invention according to claim 4 is the vehicle operation pedal device according to any one of claims 1 to 3, wherein the rotation is attached to the second pedal, and both ends thereof protrude from the support bracket. The second pedal is pivotally supported by the support bracket by including a shaft and crimping both ends of the pivot shaft.

In the vehicle operation pedal device according to the first aspect of the present invention, the stroke of the second pedal, and thus the stroke of the first pedal that is rotated by the stepping operation, are stroked by connecting the sensor lever of the stroke sensor to the second pedal. It is detected by the sensor. In other words, the sensor lever of the stroke sensor is directly connected to the pedal, and the number of parts used to transmit the stroke of the pedal to the stroke sensor is small compared to the conventional technology, so that weight reduction and cost reduction are realized. It

In the vehicle operation pedal device according to the second aspect of the present invention, since the sensor lever of the stroke sensor is locked in the opening of the second pedal, the sensor lever of the stroke sensor is reliably and easily connected to the second pedal. It

In the vehicle operation pedal device according to the third aspect of the present invention, the first plate member of the second pedal is curved and protrudes in the direction in which the stroke sensor is fixed, and the protruding region is provided with the stroke sensor. The sensor lever is connected. Therefore, in the vehicle operation pedal device according to the third aspect of the invention, the length of the sensor lever of the stroke sensor can be shortened in the direction in which the stroke sensor is fixed from the first plate member of the second pedal. Become. Furthermore, when the length of the sensor lever of the stroke sensor is shortened, the weight can be further reduced, and the bending of the sensor lever when connected to the second pedal (and thus when interlocked with the second pedal) can be prevented. Since it is small, it is possible to improve the detection accuracy of the stroke sensor.

In the vehicle operation pedal device according to the fourth aspect of the present invention, the rotary shaft for pivotally supporting the second pedal is fastened to the support bracket by crimping both ends thereof. Therefore, in the vehicle operation pedal device according to the fourth aspect of the present invention, the stroke sensor is closer to the support bracket than the coaxial structure of the second pedal, as compared with the case where the rotation shaft is fastened to the support bracket with a bolt or the like. Disposed on top. Along with this, the installation space for the stroke sensor can be secured even wider. Further, since the mounting space for mounting the vehicle operation pedal device having the stroke sensor mounted on the vehicle is small, it is easy to secure the mounting space. Further, it is easy to connect the sensor lever of the stroke sensor to the second pedal pivotally supported by the support bracket.

It is a perspective view showing a vehicle operation pedal device of the present embodiment. It is a side view showing the same operation pedal device for vehicles. FIG. 3 is a cross-sectional view of the vehicle operation pedal device taken along line AA in FIG. 2. FIG. 3 is a cross-sectional view of the vehicle operation pedal device taken along line AA in FIG. 2, showing a modified example.

Hereinafter, a vehicle operation pedal device according to the present invention will be described with reference to the drawings based on the present embodiment as a specific embodiment. In each of the drawings used in the following description, a part of the basic configuration may be omitted and drawn, and the dimensional ratio of each drawn part is not necessarily accurate. The left-right direction, the front-back direction, and the up-down direction in each drawing are as described in each drawing.

(1) Overview of Vehicle Operation Pedal Device As shown in FIGS. 1 and 2, the vehicle operation pedal device 10 includes a support bracket 12, a first pedal 14, a second pedal 16, a mounting bracket 18, and a stroke. The sensor 20 and the like are provided. In FIG. 2, the shape of the stroke sensor 20 is originally represented by a solid line, but is represented by a two-dot chain line from the viewpoint of making the description of the drawing easy to see.

The support bracket 12 includes a left side plate 12A and a right side plate 12B. The left side plate 12A and the right side plate 12B are arranged to face each other in the left-right direction. The left side plate 12A and the right side plate 12B are integrated behind them, and are fixed to an instrument panel reinforcement (not shown) (corresponding to a part of the vehicle S) at the integrated portion. Further, the left side plate 12A and the right side plate 12B are fixed to the dash panel (corresponding to a part of the vehicle S) in front of them.

Both ends of the first pin P1, the second pin P2, and the third pin P3 are fastened to the left side plate 12A and the right side plate 12B. The details of the fastening structure of the second pin P2 (including the fastening structure of the first pin P1 and the third pin P3) will be described later. A first pedal 14 is rotatably supported by the first pin P1 via a bush B1 and a first boss B2. As a result, the first pedal 14 is pivotally supported by the support bracket 12.

The first pedal 14 is provided with a step portion 14A at the lower end thereof. Therefore, when the driver of the vehicle S depresses the step portion 14A in the forward direction to perform the depressing operation on the first pedal 14, the first pedal 14 makes a circular motion forward around the first pin P1. On the other hand, when the depression operation on the first pedal 14 is released, the first pedal 14 circularly moves rearward about the first pin P1 by the urging force of the urging member (not shown).

At the upper end of the first pedal 14, one end of the connecting link 22 is pivotally supported via the fourth pin P4. Further, at the other end of the connecting link 22, the lower end of the second pedal 16 is pivotally supported via the fifth pin P5. With such a structure, the second pedal 16 is connected to the first pedal 14 via the connection link 22.

At the upper end of the second pedal 16, the rear end of the clevis 24 is pivotally supported via the sixth pin P6. Further, at the front end of the clevis 24, the rear end of the operating rod R is fixed with a nut 26. In this way, the operating rod R is pivotally supported by the clevis 24 at the upper end of the second pedal 16. The operating rod R is to generate a braking force on the vehicle S by a brake booster or the like as the operating rod R moves in the front-rear direction.

The second pedal 16 has a substantially V shape, and is rotatably supported by the second pin P2 at the bent portion. As a result, the second pedal 16 is pivotally supported by the support bracket 12. The details of the rotation support structure for the second pin P2 will be described later.

In the vehicle operation pedal device 10, the rotation of the first pedal 14 and the rotation of the second pedal 16 are interlocked by such a pedal connection structure. Specifically, when the first pedal 14 rotates about the first pin P1 by the stepping operation, the circular motion of the first pedal 14 is transmitted to the second pedal 16 via the connecting link 22, so that The pedal 16 rotates about the second pin P2. Further, when the second pedal 16 rotates, the operating rod R moves in the front-rear direction.

An opening 16A is formed through the second pedal 16. The opening 16A is provided so as to be located above the left side plate 12A and the right side plate 12B of the support bracket 12 as long as the second pedal 16 is within its movable range.

On the left side of the second pedal 16, the mounting bracket 18 is fixed to the left side plate 12A of the support bracket 12. The mounting bracket 18 is provided with a mounting hole 18A, a first protruding rod 18B, and a second protruding rod 18C. The mounting hole 18A is a circular through hole. The first projecting rod 18B and the second projecting rod 18C are provided in the front-rear direction of the mounting hole 18A and project leftward from the mounting bracket 18. Screws (not shown) are formed on the first protruding rod 18B and the second protruding rod 18C.

When the mounting bracket 18 is fixed to the left side plate 12A of the support bracket 12, the second pin P2 is located in the mounting hole 18A when viewed in the left-right direction. In FIG. 2, the front side of the paper surface is the left side, and the back side of the paper surface is the right side.

Further, in the mounting bracket 18, a part of the peripheral portion of the first protruding rod 18B and the second protruding rod 18C is bent to the right and is continuous with the portion fixed to the left side plate 12A of the support bracket 12. Therefore, in the state where the mounting bracket 18 is fixed to the left side plate 12A of the support bracket 12, the portion of the mounting bracket 18 where the mounting hole 18A, the first protruding rod 18B, and the second protruding rod 18C are provided is It is separated from the left side plate 12A of the support bracket 12 in the left-right direction.

A stroke sensor 20 is attached to the mounting bracket 18. The stroke sensor 20 includes a sensor lever 20A, a first elongated hole 20B, a second elongated hole 20C, and the like. The sensor lever 20A is inserted into the opening 16A of the second pedal 16 when the stroke sensor 20 is attached to the attachment bracket 18. Further, when the stroke sensor 20 is attached to the mounting bracket 18, the first protruding rod 18B and the second protruding rod 18C of the mounting bracket 18 are penetrated through the first elongated hole 20B and the second elongated hole 20C. It In such a penetrated state, a nut (not shown) is screwed onto the screws of the first protruding rod 18B and the second protruding rod 18C of the mounting bracket 18. As a result, the stroke sensor 20 is attached to the left side plate 12A of the support bracket 12. The details of the mounting position of the stroke sensor 20 will be described later.

(2) Second Pin Tightening Structure and Rotation Supporting Structure As shown in FIG. 3, the second pin P2 is attached so as to penetrate the inside of the second boss 28. The second boss 28 penetrates the second pedal 16. The second boss 28 is fixed to the second pedal 16 by welding. The reference numeral 30 indicates a welded portion between the second boss 28 and the second pedal 16. Further, in FIG. 3, the front side of the paper surface is the rear direction and the back side of the paper surface is the front direction. This point is the same in FIG. 4 described later.

On the left side of the second boss 28, the circular flange portion of the left side bush 32 is sandwiched between the second boss 28 and the left side plate 12A of the support bracket 12, and the cylindrical portion of the left side bush 32 is connected to the second boss 28. It is interposed between the second pin P2. Similarly, on the right side of the second boss 28, the circular flange portion of the right side bush 34 is sandwiched between the second boss 28 and the right side plate 12B of the support bracket 12, and further, the cylindrical portion of the right side bush 34 is located at the first side. It is interposed between the 2 boss 28 and the second pin P2.

On the left side of the second boss 28, the left end portion 36 of the second pin P2 protrudes leftward from the left side plate 12A of the support bracket 12, and the protruding portion is crimped. Similarly, on the right side of the second boss 28, the right end portion 38 of the second pin P2 projects rightward from the right side plate 12B of the support bracket 12, and the projecting portion is crimped.

In this way, the second pin P2 is fixed to the left side plate 12A and the right side plate 12B of the support bracket 12, and the second pedal 16 is attached to the second pin P2. As a result, the second pedal 16 is pivotally supported by the support bracket 12 via the second pin P2.

The first pin P1 and the third pin P3 are also fixed to the left side plate 12A and the right side plate 12B of the support bracket 12 by crimping both ends thereof in the same manner as the second pin P2. There is.

(3) Mounting Position of Stroke Sensor As shown in FIG. 3, the stroke sensor 20 is mounted on the left side plate 12A of the support bracket 12 via the mounting bracket 18. At that time, the stroke sensor 20 is fixed coaxially with the second pedal 16, that is, coaxially with the second pin P2. Specifically, the stroke sensor 20 rotatably supports one end portion 40 of the sensor lever 20A so that the rotation center of the sensor lever 20A and the axis AX of the second pin P2 coincide with each other. Is installed in.

When such an arrangement is performed, the sensor lever 20A has its one end portion 40 in the left direction of the left end portion 36 of the second pin P2 and the mounting hole 18A of the mounting bracket 18 and the left side plate 12A of the support bracket 12. Intervenes between. In addition, the sensor lever 20A passes through the mounting hole 18A of the mounting bracket 18 as it goes from the one end portion 40 to the other end portion 42 thereof, and goes out between the stroke sensor 20 and the mounting bracket 18 in the upward direction, and further, , Winding in the rearward direction and intervening in the opening 16A of the second pedal 16. In other words, one end 40 of the sensor lever 20A is coaxially supported by the second pedal 16, and the other end 42 of the sensor lever 20A is locked in the opening 16A of the second pedal 16. The lever 20A can transmit the stroke of the second pedal 16 to the stroke sensor 20.

By being attached in this manner, the stroke sensor 20 detects the stroke of the second pedal 16 with the sensor lever 20A and outputs the detection signal to a vehicle control ECU (not shown). The vehicle control ECU (not shown) calculates the stroke of the second pedal 16, and thus the stroke of the first pedal 14 connected to the second pedal 16 by the connection link 22, based on the detection signal.

(4) Summary As described in detail above, in the vehicle operation pedal device 10 according to the present embodiment, the stroke of the second pedal 16 by connecting the sensor lever 20A of the stroke sensor 20 to the second pedal 16, As a result, the stroke of the first pedal 14, which is rotated by the depression operation, is detected by the stroke sensor 20. That is, the sensor lever 20A of the stroke sensor 20 is directly connected to the second pedal 16, and compared with the conventional technology, the number of parts for transmitting the stroke of the second pedal 16 to the stroke sensor 20 is small, and thus the weight is reduced. And cost reduction is realized.

In the vehicle operation pedal device 10 of the present embodiment, since the other end 42 of the sensor lever 20A of the stroke sensor 20 is inserted into the opening 16A of the second pedal 16, the sensor lever 20A of the stroke sensor 20 is set to the second position. Securely and easily connected to the pedal 16.

In the vehicle operation pedal device 10 of the present embodiment, the second pin P2 for pivotally supporting the second pedal 16 is fastened to the support bracket 12 by caulking the left end portion 36 and the right end portion 38 thereof. ing. Therefore, in the vehicle operation pedal device 10 according to the present embodiment, the stroke sensor 20 is closer to the left side plate 12A of the support bracket 12 as compared with the case where the second pin P2 is fastened to the support bracket 12 with bolts and nuts. In this state, it is arranged on the axis AX of the second pedal 16.

As a result, the installation space for the stroke sensor 20 is further widened in the leftward direction from the left side plate 12A of the support bracket 12. In addition, since a mounting space for mounting the vehicle operation pedal device 10 provided with the stroke sensor 20 on the vehicle S is small, it is easy to secure the mounting space. Further, since the stroke sensor 20 is in a state closer to the second pedal 16 pivotally supported by the support bracket 12, it is easy to connect the sensor lever 20A of the stroke sensor 20 to the second pedal 16.

(5) Modifications The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention.

(5-1) Modification example 1
For example, as shown in FIG. 4, the second pedal 16 may be composed of the first plate member 44 and the second plate member 46. Hereinafter, such a modified example will be described. However, in the following description, the portions substantially common to the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The first plate member 44 is provided with a first protruding region 48. The first projecting region 48 is formed by bending the plate material of the first plate member 44, and projects to the left where the stroke sensor 20 is fixed. An opening 16A of the second pedal 16 is provided in the first protruding region 48 so as to penetrate therethrough.

The second plate member 46 is provided with a second protruding region 50. The second projecting region 50 is formed by bending the plate material of the second plate member 46, and projects in the right direction opposite to the left direction to which the stroke sensor 20 is fixed.

The first plate member 44 and the second plate member 46 are overlapped so that the hollow portion 52 is formed by the first protruding region 48 and the second protruding region 50, and are joined in such a state, Two pedals 16 are configured. Further, the other end 42 of the sensor lever 20A of the stroke sensor 20 is inserted into the opening 16A of the first projecting region 48 of the first plate member 44. As a result, the sensor lever 20A is connected to the first protruding region 48 of the first plate member 44.

In such a modified example, the first plate member 44 of the second pedal 16 is curved and protrudes leftward to which the stroke sensor 20 is fixed. The sensor lever 20A of the stroke sensor 20 is connected to the first protruding region 48 that is the protruding region. Therefore, the length of the sensor lever 20A of the stroke sensor 20 can be shortened in the leftward direction where the stroke sensor 20 is fixed from the first plate member 44 of the second pedal 16. Further, when the length of the sensor lever 20A of the stroke sensor 20 is shortened, further weight reduction is possible, and when the sensor lever 20A is connected to the second pedal 16 (which in turn rotates in conjunction with the second pedal 16). Since the deflection of the sensor lever 20</b>A is small, the detection accuracy of the stroke sensor 20 can be improved.

In the modified example described above, the second protruding region 50 of the second plate member 46 may not be provided.

(5-2) Modification example 2
In addition, in the present embodiment including the above-described modified example, the other end portion 42 of the sensor lever 20A may be fixed to the second pedal 16 by welding, an adhesive agent, or the like. In such a case, the sensor lever 20A is connected to the second pedal 16 without providing the opening 16A in the second pedal 16.

(6) Others Incidentally, in the present embodiment, the connection link 22 is an example of a “link member”. The second pin P2 is an example of a “rotating shaft”. The left end 36 and the right end 38 of the second pin P2 are examples of “both ends of the rotation shaft”. The left direction is an example of the “direction in which the stroke sensor is fixed”. The first protruding area 48 of the first plate member 44 is an example of a “projected area”.

10 Vehicle Operation Pedal Device 12 Support Bracket 14 First Pedal 16 Second Pedal 16A Opening 20 Stroke Sensor 20A Sensor Lever 22 Connecting Link 36 Left End of Second Pin 38 Right End of Second Pin 44 First Plate Member 46 2nd plate member 48 1st protrusion area|region AX 2nd pin axis P2 2nd pin S Vehicle

Claims (4)

A support bracket fixed to the vehicle,
A first pedal that is pivotally supported by the support bracket and that rotates by a stepping operation;
A second pedal which is connected to the first pedal through a link member, pivotally supported by the support bracket, pivots in conjunction with the depressed first pedal, and pivotally supports an operating rod at an upper end portion; Pedals,
A stroke sensor fixed to the support bracket coaxially with the second pedal,
The stroke sensor is
An operation pedal device for a vehicle, comprising a sensor lever connected to the second pedal and transmitting a stroke of the second pedal to the stroke sensor. The vehicle operation pedal device according to claim 1, wherein the sensor lever is connected to the second pedal by locking the sensor lever in an opening provided in the second pedal. .. The second pedal is
A first plate member and a second plate member that are superposed on each other,
The first plate member is
The vehicle operation pedal device according to claim 1 or 2, wherein the stroke sensor is curved and protrudes in a fixed direction, and the sensor lever is connected to the protruded region. While being attached to the second pedal, both end portions are provided with a rotating shaft protruding from the support bracket,
The vehicle operation according to any one of claims 1 to 3, wherein the second pedal is pivotally supported by the support bracket by crimping the both ends of the rotation shaft. Pedal device.

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