JP2007133705A - Pedal for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pedal for automobile whose vibration can be suppressed and which is not broken when stepped further on after full admission. <P>SOLUTION: The pedal for automobile, which is made of resin and in which a step surface 4 is formed at a tip part of a pedal arm 3 supported rotatably, is provided with a space part 7 on the pedal arm 3 and in which a material 8 having specific gravity larger than that of the resin of the medal arm 3 is arranged in the space part 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automobile pedal capable of suppressing vibration.

  Conventionally, an automobile pedal such as an accelerator pedal is structurally cantilevered, so that engine vibration, vehicle body vibration, and the like are transmitted to the pedal, and the pedal may vibrate. As a countermeasure against this vibration, there is a method of adding a weight to the pedal body and reducing pedal vibration by changing the resonance point and lowering the gain. In general, when a weight is attached to a pedal, the weight is disposed on the side close to the cable connecting portion of the throttle cable that operates the throttle valve (see Patent Document 1, Patent Document 2, and Patent Document 3).

However, in an electronic accelerator pedal that has been adopted in recent years, a depression operation of the accelerator pedal is detected by a sensor and converted into an electric signal, and a throttle valve is controlled based on the electric signal (see Patent Document 4). This electronic accelerator pedal is usually attached to the dash panel or the dash panel via a bracket. This electronic accelerator pedal needs to have a stopper in the pedal when the pedal is fully opened due to the detection range and structure of the sensor. Therefore, the stopper of the electronic accelerator pedal, the pedal arm, and the electronic accelerator pedal main body are made robust so as not to be broken even if the electronic accelerator pedal is further depressed after it is fully opened.
JP 2005-126047 A Utility Model Registration No. 2537663 Japanese Patent No. 2767921 Japanese Patent Laid-Open No. 10-287147

  However, since the conventional electronic accelerator pedal is not directly connected to the throttle cable that operates the throttle valve, there is no end of the cable, and thus a structure for attaching a vibration preventing weight like a mechanical accelerator pedal cannot be taken. In addition, when the pedal body is made of resin, the weight cannot be attached by welding, and the conventional simple attachment is not possible. Furthermore, in order to make the stopper of the electronic accelerator pedal, the pedal arm, and the electronic accelerator pedal main body robustly, it is necessary to use a rigid material, which increases weight and cost.

  An object of the present invention is to provide an automobile pedal that solves the above-described problems and can suppress vibrations, and prevents the pedal from being broken even when the pedal is further depressed after full opening.

In order to solve the above-mentioned problems, the present invention is a resin-made automobile pedal in which a tread surface is formed at a tip end portion of a pedal arm that is rotatably supported, and a space portion is provided in the pedal arm. This is because a substance having a specific gravity larger than that of the resin of the pedal arm is arranged in the portion.
Further, the present invention is that a meat stealing portion is provided as a space portion of the pedal arm, and a substance having a specific gravity larger than that of the resin of the pedal arm is disposed in the meat stealing portion.
Furthermore, the present invention resides in that the removal direction of the meat stealing portion of the pedal arm is set to the vehicle width direction in a vehicle assembled state.
Still further, in the present invention, the meat stealing portion of the pedal arm is provided on the back side of the tread surface of the pedal arm.
Further, the present invention is to provide a stopper function when the pedal arm is depressed on the back side of the tread surface of the pedal arm provided with the meat stealing portion.
Further, according to the present invention, the pedal arm is assembled to a pedal bracket attached to the vehicle body side, and the pedal bracket has an elastic function to absorb the impact of the pedal arm when the pedal arm is fully opened. .

As an effect of the present invention, a resin-made automobile pedal in which a tread surface is formed at a distal end portion of a pedal arm that is rotatably supported, wherein the pedal arm is provided with a space portion, and the pedal arm is provided in the space portion. Since a substance having a specific gravity greater than that of the resin is disposed, the weight can be attached without protruding outward from the pedal.
Since a meat stealing portion is provided as a space portion of the pedal arm, and a substance having a specific gravity greater than that of the resin of the pedal arm is arranged in the meat stealing portion, the space portion can be formed when the pedal arm is molded with resin.
Since the removal direction of the meat stealing portion of the pedal arm is the vehicle width direction in the assembled state of the vehicle, it is difficult to remove the weight and the weight can be easily fixed.
Furthermore, since the meat stealing portion of the pedal arm is provided on the back side of the tread surface of the pedal arm, the weight for preventing vibration can be arranged at a more effective position, and the effect of the weight can be sufficiently exhibited. can do.
In addition, since the back side of the tread surface of the pedal arm provided with the meat stealing part has a stopper function when depressing the pedal arm, when the operation of depressing the tread surface of the pedal arm beyond the fully open position of the pedal Since the stopper on the back of the pedal comes into contact with other vehicle body parts and receives a stepping force, the force applied to the pedal arm and the pedal body can be reduced.
Further, the pedal arm is assembled to a pedal bracket attached to the vehicle body side, and the pedal bracket has an elastic function to absorb the impact of the pedal arm when the pedal arm is fully opened. Can reduce the force applied.

Hereinafter, the illustrated embodiment will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an electronic accelerator pedal according to an embodiment of the present invention.

  The electronic accelerator pedal 1 includes a pedal holder 2 attached to the vehicle body side, and a resin pedal arm 3 that is swingably supported by a support mechanism of the pedal holder 2.

  The pedal holder 2 supports the base end portion of the pedal arm 3 so as to be rotatable via a shaft portion (not shown). The pedal holder 2 is provided with a return spring and a sensor. Amount). The depression position of the pedal arm 3 detected by the sensor controls the opening degree of the throttle valve as an electric signal.

  The pedal arm 3 is a resin part in which a tread surface 4 is integrally provided at a tip portion, and an inverted trapezoidal protrusion 5 is integrally provided on the back side of the tread surface 4. A meat stealing portion 6 whose opening direction is the vehicle width direction is provided inside the protruding portion 5 during resin molding. On the back side of the tread surface 4 by the meat stealing portion 6, an inverted trapezoidal outer frame 5a of the protruding portion 5, a partition wall 5b partitioning the inside of the outer frame 5a, one side wall 5c of the protruding portion 5, and a tread surface A plurality of (three in the illustrated example) space portions 7 are formed in the vehicle width direction with the back surface 4a of the four.

  In the plurality of space portions 7, weights 8 having a shape corresponding to the shape of the space portion 7 are disposed. These weights 8 are respectively adhered to the inner wall surface 9 of the space portion 7 formed by the outer frame 5a of the protruding portion 5, the partition wall 5b, the one side wall 5c, and the back surface 4a of the tread surface 4 with an adhesive. As long as the weight 8 is a substance having a specific gravity larger than that of the resin of the pedal arm, any material such as metal can be used. When it is difficult to bond with an adhesive, the periphery of the weight can be coated with a resin, and other engagement structures and the like can be appropriately selected. One or a plurality of weights 8 can be used as necessary.

  As shown in FIG. 2, the pedal arm 3 is bent sideways (in the direction of the swinging axis of the support mechanism) in the middle from the support mechanism of the pedal holder 2 to the tread surface 4 at the front end portion. On the other hand, it is offset and continues to the one side wall 5c of the protruding portion 5, and is integrally formed with the tread surface 4 with resin. By forming a meat stealing portion over the entire length of the pedal arm 3 itself, the weight can be reduced.

According to the above configuration, the space portion 7 can be formed on the back side of the tread surface 4 of the pedal arm 3, and the weight 8 can be disposed in the space portion 7. Therefore, the vibration preventing weight is disposed at a more effective position. It is possible to prevent unpleasant pedal vibrations transmitted to the soles of the driver and to easily place the weight. Furthermore, since the weight 8 is arranged in the space portion 7 provided on the back side of the tread surface 4, the weight 8 does not protrude from the pedal arm 3, and the external dimensions of the pedal arm 3 do not change depending on whether or not there is a weight. There is no problem of interference with other parts. Further, even when the mass of the weight 8 has to be changed due to the difference in the resonance point depending on the vehicle, a plurality of weights 8 can be prepared and the combination of the weights 8 can be easily changed.
In addition, fine adjustment can be performed by arbitrarily changing the number and size of the space portions 7. Furthermore, since the resin removal direction is the vehicle width direction (perpendicular to the pedal operation direction), there is no possibility that the weight will drop due to the impact of the pedal operation even with a simple attachment method. Since the weight 8 is disposed on the back side of the tread surface 4 of the pedal arm 3, the effect of vibration countermeasures can be obtained with a smaller weight 8.
In addition, the space part 7 into which the weight 8 is inserted can be formed in the middle of the arm of the pedal arm 3 to insert the weight 8. The weight 8 can be incorporated into the pedal by various methods such as welding, casting, screwing, riveting, etc. in addition to bonding. Further, since cushion rubber or the like can be used when fixing the weight, it can also act as a dynamic damper.

3 and 4 show another embodiment of the present invention. The same parts as those in FIG. 1 are denoted by the same reference numerals, and description of the same parts is omitted.
In this case, the electronic accelerator pedal 10 is fixed to the pedal bracket 20 and is attached to the pedal bracket 50 that supports the dash panel and other pedals via the pedal bracket 20. The pedal bracket 20 of the accelerator pedal has a mounting surface 20a of the electronic accelerator pedal 10, and a leg portion 23 that is bent from one side portion (right side in the illustrated example) of the mounting surface 20a and extends toward a dash panel (not shown). A fixing portion 20b in which a bolt hole 21a is formed is provided at a contact portion of the leg portion with the dash panel, and the bolt hole 21a is attached to a dash panel (not shown) of the vehicle body via the bolt 21. The pedal bracket 20 of the accelerator pedal is fixed to a pedal bracket 50 that fixes the brake pedal 30 and the clutch pedal 40 located at the upper left thereof. More specifically, a protruding piece 22 extending from the upper end of the pedal bracket 20 is formed, and the protruding piece 22 is spot welded to the pedal bracket 50. That is, the bolt hole 21a of the pedal bracket 20 is provided on one side of the pedal bracket 20 that is a predetermined distance m higher than the rotation shaft 3a of the pedal arm 3 of the electronic accelerator pedal 10, and the electronic accelerator. The fixing portion 20b by the bolt 21 and the projecting piece 22 is displaced (offset) to one side (right side in the illustrated example) with respect to the mounting position of the pedal 10.
Further, the pedal bracket 20 is formed by raising the mounting surface 20a of the electronic accelerator pedal 10 from the dash panel to the rear of the vehicle body with respect to the fixing portion 20b of the bolt 21 by the leg portion 23, and the mounting surface 20a. And a dash panel.
The lower portion of the pedal holder 2 forms a stopper portion 24 that extends downward and contacts the pedal arm 3.

  The protrusion 5 on the back side of the tread surface 4 of the pedal arm 3 has a predetermined gap with the stopper 61 of the floor 60 in a state where the middle of the pedal arm 3 hits the stopper portion 24 as shown by a two-dot chain line in the figure. g is formed. And the protrusion part 5 formed in the back side of the tread surface 4 of the pedal arm 3 is within the range of the elastic deformation of the pedal bracket 20 when the pedal arm 3 is further depressed from the state where the middle of the pedal arm 3 hits the stopper part 24. It is set so as to elastically deform and hit the stopper 61 of the floor 60.

  According to the other embodiment of the present invention described above, during traveling, the tread surface 4 of the electronic accelerator pedal 10 can be stepped on until the middle of the pedal arm 3 hits the stopper portion 24 of the pedal bracket 20. The detection range can be secured reliably. On the other hand, when the pedal arm 3 is further depressed after it hits the stopper portion 24 of the pedal bracket 20, such as when the pedal arm 3 of the electronic accelerator pedal 10 is suddenly depressed, the pedal arm 3 is depressed while elastically deforming the pedal bracket 20. Move in the direction. And the protrusion part 5 of the back side of the tread surface 4 of the pedal arm 3 hits the stopper 61 of the floor 60, and the movement of the pedal arm 3 stops.

  As described above, in another embodiment of the present invention, the mounting position of the electronic accelerator pedal 10 is displaced (offset) from the fixed portion 20b and the leg portion 23 of the pedal bracket 20 toward the tread surface 4, and further the tread surface Since the space is provided between the mounting surface 20a in the direction 4 and the dash panel, the pedal bracket 20 is easily elastically deformed, and the protruding portion 5 easily comes into contact with the stopper 61 of the floor 60 and receives force. Therefore, even if the operation is further stepped on after contacting the stopper portion 24, it is possible to prevent an excessive force from being applied to the pedal arm 3. Naturally, the operation load before contacting the stopper portion 24 is set so that the pedal bracket 20 is not easily elastically deformed, and the operation load of the pedal arm 3 and the operation load at the time of elastic deformation can be different. The driver can be informed of the full opening point. Since the pedal bracket 20 is elastically deformed, even if the strength of the pedal arm 3 is lowered, the pedal arm 3 can be reliably operated to the fully open point, and even an operation that is further depressed can be handled without any problem. Moreover, since the stress at the time of full opening is not applied to the fulcrum part of the pedal arm 3, the durability of the sensor unit part can be improved.

  The present invention is not limited to the above-described embodiment. For example, the electronic accelerator pedal has been described. However, the present invention can also be applied to a brake pedal or a clutch pedal. Moreover, although the said embodiment demonstrated the motor vehicle of a right-hand drive vehicle, it is applicable also to a left-hand drive vehicle. Furthermore, the present invention can be applied to a normal accelerator pedal other than the electronic accelerator pedal. In addition, it goes without saying that the present invention can be appropriately modified and implemented within the scope not changing the gist of the present invention.

It is a perspective view which shows the electronic accelerator pedal by embodiment of the pedal for motor vehicles of this invention. It is a front view which shows the electronic accelerator pedal of FIG. It is a perspective view which shows the electronic accelerator pedal by other embodiment of the pedal for motor vehicles of this invention. It is a side view which shows operation | movement of the electronic accelerator pedal of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,10 Electronic accelerator pedal 2 Pedal holder 3 Pedal arm 4 Tread surface 5 Protruding part 6 Meat stealing part 7 Space part 8 Weight 9 Inner wall surface 20 Pedal bracket 20a Mounting surface 20b Fixing part 21 Bolt 21a Bolt hole 22 Projection piece 23 Leg part 24 Stopper 60 Floor

Claims (6)

  A resin automobile pedal having a tread surface formed at a tip end of a pedal arm that is rotatably supported, wherein the pedal arm has a space portion, and the space portion has a specific gravity higher than that of the resin of the pedal arm. A pedal for an automobile characterized by a large material.   The automobile pedal according to claim 1, wherein a meat stealing portion is provided as a space portion of the pedal arm, and a substance having a specific gravity greater than that of the resin of the pedal arm is disposed in the meat stealing portion.   The pedal for an automobile according to claim 2, wherein a direction in which the meat stealing portion of the pedal arm is pulled out is a vehicle width direction in a vehicle assembled state.   4. The automobile pedal according to claim 2, wherein a meat stealing portion of the pedal arm is provided on a back side of a tread surface of the pedal arm. 5.   5. The automobile pedal according to claim 4, wherein a stopper function when the pedal arm is depressed is provided on the back side of the tread surface of the pedal arm provided with the meat stealing portion. 6. The pedal arm according to claim 5, wherein the pedal arm is assembled to a pedal bracket attached to a vehicle body side, and the pedal bracket is provided with an elastic function for absorbing an impact of the pedal arm when the pedal arm is fully opened. The described automobile pedal.

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