JP2010140294A - Pedal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pedal device which can raise workability in control work of a pedal arm position by simplifying control of an initial position of the pedal arm at non-operation time. <P>SOLUTION: A tabular member 15 extending around a center shaft O of a fixed shaft is set up at a rotating part 14b of the pedal arm 14. The tabular member 15 is constituted by including: an tilting plate 15a which tilts to the center shaft O of the fixed shaft; and a leveling plate 15b which is set up at one edge in the extending direction of the tilting plate 15a and extends in the direction orthogonal to the center shaft O of the fixed shaft 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pedal device, and more particularly to a pedal device including a pedal switch that detects depression of a brake pedal, an accelerator pedal, or the like provided in a vehicle.

  Some pedal devices such as brake pedals and accelerator pedals for vehicles such as automobiles have a pedal switch that is turned on and off by swinging the pedal arm. Is provided.

  As a conventional pedal device of this type, one shown in FIG. 8 is known (for example, see Patent Document 1). In FIG. 8, the pedal device 1 includes a pedal arm 4 supported on a pedal bracket 2 fixed to the vehicle body via a fixed shaft 3 so as to be swingable, and an operation shaft 5 a is projected and retracted by the swing of the pedal arm 4. And a pedal switch 5 for turning on and off.

  The pedal arm 4 is provided with a pedal pad 4a at a lower end portion, and a pedal force is applied to the pedal pad 4a to swing the pedal arm 4. Further, the pedal arm 4 is formed with a cam 6 for turning on and off the pedal switch 5 at the upper end portion, and the cam 6 changes its distance from the pedal switch 5 as the pedal arm 4 swings. And the operation shaft 5a of the pedal switch 5 is arranged in the normal direction of the rotation locus of the cam 6 (the arc direction around the fixed shaft 3), that is, in the direction directed to the fixed shaft 3. The sliding contact is made with the cam surface 6a.

In the conventional pedal device 1 having such a configuration, when the pedal arm 4 is not operated, the interval between the cam surface 6a of the cam 6 and the pedal switch 5 becomes the smallest, and when the pedal arm 4 is operated (depressed). ), The distance between the cam surface 6a and the pedal switch 5 is set to be large. Therefore, when the pedal arm 4 is not operated, the operation shaft 5a is pushed most in and the pedal switch 5 is turned off. By depressing and swinging the pedal arm 4 from the operating state, the operating shaft 5a protrudes, and the pedal switch 5 is turned on when the operating shaft 5a protrudes a predetermined amount. In this manner, the operation / non-operation of the pedal arm 4 is detected by detecting on / off of the pedal switch 5.
JP 2005-29071 A

  In such a conventional pedal device 1, the amount of protrusion and withdrawal of the operation shaft 5 a can be varied by changing the distance between the cam surface 6 a of the cam 6 and the pedal switch 5 as the pedal arm 4 swings. Since the pedal switch 5 is turned on and off in this way, when the initial position of the pedal arm 4 is adjusted when the pedal arm 4 is not operated, the position of the pedal switch 5 attached to the pedal bracket 2 is readjusted. There was a need to do.

  That is, when the position of the pedal pad 4a is moved back and forth according to the physique of the driver, the pedal pad 4a is moved forward and backward by swinging the pedal arm 4 in the longitudinal direction of the vehicle. It is necessary to let

  However, in the conventional pedal device 1, since the distance between the cam surface 6 a of the cam 6 and the pedal switch 5 changes as the pedal arm 4 swings, the pedal switch 5 is adjusted after the initial position of the pedal arm 4 is adjusted. Adjustment to the distance between the cam surface 6a of the cam 6 and the pedal switch 5 requires adjustment and re-attachment to the pedal bracket 2, which makes the adjustment work of the pedal arm 4 very troublesome.

  The present invention has been made to solve the conventional problems as described above, and can simplify the adjustment of the initial position of the pedal arm when not being operated, and the workability of the adjustment work of the position of the pedal arm can be simplified. It is an object of the present invention to provide a pedal device that can improve the performance.

  In order to achieve the above object, the pedal device according to the present invention includes (1) a fixed shaft fixed to the pedal bracket, and a rotating portion provided at one end portion so as to be rotatable on the fixed shaft. A pedal arm having a step portion to which a stepping force is applied at an end portion, and swinging with the fixed shaft as a swing fulcrum, and a plate-like shape provided on the rotating portion and extending around a central axis of the fixed shaft A switch body attached to the pedal bracket, and an operation shaft that protrudes and protrudes in a direction parallel to the center axis of the fixed shaft with respect to the switch body, and a distal end portion of the operation shaft is formed on the plate-like member. A pedal switch that comes into contact, and the plate-like member is provided at an inclined plate portion that is inclined with respect to the central axis of the fixed shaft, and at one end portion in the extending direction of the inclined plate portion, and the central axis of the fixed shaft Horizontal plate that extends in a direction substantially perpendicular to It is configured to include a.

  With this configuration, the rotating portion of the pedal arm is provided with a plate-like member extending around the central axis of the fixed shaft, and the plate-like member is inclined with respect to the central axis of the fixed shaft, It is provided at one end in the extending direction of the plate part and includes a horizontal plate part extending in a direction substantially orthogonal to the central axis of the fixed shaft. When the pedal arm is operated (swinged) from the state in which the tip is in contact, the tip of the operating shaft comes into contact with the inclined plate from the horizontal plate as the pedal arm swings.

  For this reason, when the pedal arm is further swung, the gap between the inclined plate portion and the switch body is reduced, the operation shaft is pushed into the switch body and the pedal switch is turned on, and the pedal arm is operated. Is detected.

  Further, when the pedal arm is not operated, for example, when the pedal arm is swung in the front-rear direction of the vehicle in order to adjust the position of the step part in the front-rear direction of the vehicle, the tip end of the operation shaft is Since contact can be made within the range, the gap between the horizontal plate portion and the switch body can be kept constant.

As a result, when the pedal arm is not operated, it is not necessary to adjust the position of the pedal switch with respect to the pedal housing, and it is only necessary to adjust the position of the pedal arm. Can be improved.
In addition, when the pedal arm swing position when the pedal arm is not operated and when the pedal arm is adjusted and the adjustment position of the pedal arm when the pedal arm is not operated are different for each pedal device, only the plate member is attached to the pedal arm. You can respond by simply changing it.
For this reason, it is not necessary to manufacture a plurality of types of pedal arms, so that the versatility of the pedal arms can be improved, and the manufacturing cost of the pedal arms can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the adjustment of the initial position of the pedal arm at the time of non-operation can be simplified, and the pedal apparatus which can improve the workability | operativity of the adjustment work of the position of a pedal arm can be provided.

Hereinafter, an embodiment of a pedal device according to the present invention will be described with reference to the drawings.
FIGS. 1-7 is a figure which shows one Embodiment of the pedal apparatus based on this invention.
First, the configuration will be described.
1 and 2, the pedal device 11 is applied to, for example, a brake pedal of a vehicle such as an automobile, and is attached to a pedal bracket 12 fixed to the vehicle body side.

  As shown in FIGS. 1 to 3, the pedal bracket 12 includes side walls 12a, 12b, and 12c, and a ceiling portion 12d that connects the side walls 12a, 12b, and 12c. The fixed shaft 13 is provided so as to straddle 12b.

A pedal arm 14 is attached to the pedal bracket 12, and the pedal arm 14 is provided on an arm portion 14 a extending in the vertical direction and one end portion of the arm portion 14 a, and is rotatable on the fixed shaft 13. The rotation part 14b provided and the pedal pad 14c as a step part provided at the other end of the arm part 14a to which a driver's stepping force is applied are configured, and the fixed shaft 13 is used as a swinging fulcrum. It can swing freely.
A return spring 19 is wound around the fixed shaft 13. The return spring 19 has one end locked to the pedal arm 14 and the other end locked to the side wall 12b of the pedal bracket 12. The return spring 19 is not operated when the pedal arm 14 is not operated. Is biased in the return direction (the clockwise direction in FIGS. 1 and 2), which is the initial position.

  A push rod 17 is attached to the central portion of the arm portion 14a in the vertical direction, and the push rod 17 protrudes from a brake booster (not shown) that functions as a pedal force increasing means for increasing the driver's pedal force. This brake booster increases the operating force of the pedal arm 14 when the pedal arm 14 is operated as is well known, and the function of converting the operating force of the pedal arm 14 into a hydraulic pressure. It transmits to the well-known master cylinder which has.

  Further, a plate-like member 15 is provided on the upper portion of the rotating portion 14b, and this plate-like member 15 extends around the central axis O of the fixed shaft 13 as shown in FIGS. Yes. The plate-like member 15 is provided at an inclined plate portion 15 a that is inclined with respect to the central axis O of the fixed shaft 13 and at one end portion in the extending direction of the inclined plate portion 15 a, and is substantially orthogonal to the central axis O of the fixed shaft 13. And a horizontal plate portion 15b extending in the direction.

  A pedal switch 16 is attached to the pedal bracket 12. The pedal switch 16 includes a switch main body 16a fixed to the pedal bracket 12, and an operation shaft 16b protruding and retracting in a direction parallel to the central axis O of the fixed shaft 13 with respect to the switch main body 16a. The tip portion of the plate contacts the plate-like member 15, that is, the inclined plate portion 15a and the horizontal plate portion 15b.

  In the switch main body 16a, a spring that urges the operation shaft 16b to the plate-like member 15 and a contact with the operation shaft 16b when the operation shaft 16b is pushed into the switch main body 16a against the urging force of the spring. And a switch terminal that transmits an ON signal to the control unit.

  The operation shaft 16b has its tip end in contact with the inclined plate portion 15a from the horizontal plate portion 15b, and when the inclined plate portion 15a rotates and a gap between the switch body 16a and the inclined plate portion 15a becomes a certain gap. In addition, an ON signal is transmitted to the control unit by contacting the switch terminal.

  The control unit includes a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM), and is operated by the pedal device 11 when an on signal is output from the pedal switch 16. It has come to detect that.

  Further, an adjuster bolt 18 is screwed onto the side wall 12c, and the adjuster bolt 18 changes the screwing position with respect to the pedal bracket 12 when the pedal arm 14 is not operated, thereby changing the pressing position of the pedal arm 14. As a result, the pedal arm 14 is swung in the vehicle front-rear direction (left-right direction in FIGS. 1 and 2).

  At this time, the adjuster bolt 18 abuts against the pedal arm 14 against the urging force of the return spring 19 to restrict the pedal arm 14 from swinging clockwise in FIGS. 1 and 2. The initial position when the pedal arm 14 is not operated is set. Therefore, the initial position of the pedal arm 14 can be set by positioning the position of the pedal pad 14c in front of and behind the vehicle according to the physique of the driver.

Next, the operation will be described.
As shown by a solid line in FIG. 6, when the pedal arm 14 is not operated, that is, in a state where the driver does not step on the pedal pad 14c, as shown in FIG. Since the tip is in contact, the pedal switch 16 is off.

  When the driver depresses the pedal pad 14c from this state, the pedal arm 14 swings around the fixed shaft 13 as a swing fulcrum. As the pedal arm 14 swings, the tip of the operation shaft 16b comes into contact with the inclined plate portion 15a from the horizontal plate portion 15b, and the operation shaft 16b is pushed into the switch body 16a (see FIG. 5B). .

  When the pedal arm is further swung, the gap between the inclined plate portion 15a and the switch body 16a is reduced, the operation shaft 16b is pushed into the switch body 16a, and the pedal switch 16 is turned on, so that the pedal arm 14 is operated. It has been detected (see FIG. 5C). At this time, the pedal arm 14 is in a position indicated by a broken line in FIG.

  On the other hand, when the position of the pedal pad 14c is moved back and forth according to the physique of the driver, the pedal pad 14c is moved forward and backward by swinging the pedal arm 14 in the front and rear direction of the vehicle. It is necessary to let

  At this time, as shown in FIG. 7A, an operation of swinging the pedal arm 14 between the solid line and the broken line is performed. In this case, the driver operates the adjuster bolt 18 from the driver's seat side to change the screwing position of the adjuster bolt 18 with respect to the pedal bracket 12, thereby changing the pressing position of the pedal arm 14 and the pedal arm 14. Is swung in the longitudinal direction of the vehicle.

  In the present embodiment, a plate-like member 15 extending around the central axis O of the fixed shaft 13 is provided on the rotating portion 14 b of the pedal arm 14, and the plate-like member 15 is provided on the central axis O of the fixed shaft 13. An inclined plate portion 15a that is inclined with respect to the inclined plate portion 15a, and a horizontal plate portion 15b that is provided at one end portion in the extending direction of the inclined plate portion 15a and extends in a direction substantially orthogonal to the central axis O of the fixed shaft 13. Therefore, when the pedal arm 14 is swung in the front-rear direction of the vehicle in order to adjust the position of the pedal pad 14 c in the front-rear direction of the vehicle when the pedal arm 14 is not operated, the front end portion of the operation shaft 16 b is leveled. Since contact can be made within the range of the plate portion 15b, the gap between the horizontal plate portion 15b and the switch body 16a can be kept constant. That is, the horizontal plate portion 15b can have a play width for adjusting the initial position of the pedal arm 14.

As a result, when the pedal arm 14 is not operated, it is not necessary to adjust the position of the pedal switch 16 with respect to the pedal bracket 12, and the operation of adjusting the position of the pedal arm 14 may be performed. The workability of the adjustment work can be improved.
Further, when the pedal arm 14 swings when the pedal arm 14 is not operated and when the pedal arm 14 is not operated and the adjustment position of the pedal arm 14 when the pedal arm 14 is not operated is different for each pedal device 11, This can be dealt with by changing only the plate-like member 15.
For this reason, it is not necessary to manufacture a plurality of types of pedal arms 14, the versatility of the pedal arms 14 can be improved, and the manufacturing cost of the pedal arms 14 can be reduced.
In addition, although the pedal apparatus 11 of this Embodiment is applied to the brake pedal, you may apply to an accelerator pedal.

  The embodiment disclosed this time is illustrative in all respects and is not limited to this embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims for patent.

  As described above, the pedal device according to the present invention can simplify the adjustment of the initial position of the pedal arm when not being operated, and can improve the workability of the adjustment work of the position of the pedal arm. And is useful as a pedal device equipped with a pedal switch for detecting depression of a brake pedal, an accelerator pedal, or the like provided in the vehicle.

It is a figure which shows one Embodiment of the pedal apparatus which concerns on this invention, and is a side view of a pedal apparatus. It is a figure which shows one Embodiment of the pedal apparatus which concerns on this invention, and is sectional drawing of a pedal apparatus. It is a figure which shows one Embodiment of the pedal apparatus which concerns on this invention, and is a front view of the pedal apparatus seen from the arrow A direction of FIG. It is a figure which shows one Embodiment of the pedal apparatus which concerns on this invention, and is a top view of a pedal arm. It is a figure which shows one Embodiment of the pedal apparatus which concerns on this invention, and is a figure which shows the state of a plate-shaped member and pedal switch when a pedal arm rock | fluctuates. It is a figure which shows one Embodiment of the pedal apparatus which concerns on this invention, and is a figure which shows the rocking | fluctuation position of the pedal arm at the time of non-operation of a pedal arm (shown with a continuous line) and operation (shown with a broken line). It is a figure which shows one Embodiment of the pedal apparatus which concerns on this invention, (a) is a side view of the pedal arm which shows the state which adjusts the rocking | fluctuation position of a pedal arm at the time of non-operation of a pedal arm, (b) It is a top view of the same figure (a). It is a side view of the conventional pedal arm.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Pedal apparatus 12 Pedal bracket 13 Fixed shaft 14 Pedal arm 14b Rotating part 14c Pedal pad (step part)
15 Plate-like member 15a Inclined plate portion 15b Horizontal flat plate portion 16 Pedal switch 16a Switch body 16b Operation shaft

Claims (1)

A fixed shaft fixed to the pedal bracket; a rotating portion provided at one end portion of the fixed shaft so as to be rotatable; and a step portion to which a stepping force is applied at the other end portion. A pedal arm that swings as a swing fulcrum, a plate-like member that is provided in the rotating portion and extends around the center axis of the fixed shaft, a switch body attached to the pedal bracket, and the switch body An operation shaft that protrudes and protrudes in a direction parallel to the central axis of the fixed shaft, and a pedal switch in which a tip portion of the operation shaft contacts the plate-like member,
The plate-like member is provided at an inclined plate portion that is inclined with respect to the central axis of the fixed shaft and at one end portion in the extending direction of the inclined plate portion, and extends in a direction substantially orthogonal to the central axis of the fixed shaft. A pedal device comprising a horizontal plate portion.

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