JP2007191009A - Accelerator pedal device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an accelerator pedal device for a vehicle capable of maintaining a normal rotating operation of the accelerator pedal by preventing foreign matters from being remained on a support member. <P>SOLUTION: A surface opposed to the accelerator pedal of a mounting base 4 is formed in a projection shape, namely in an approximately dogleg shape from two planes 4a, and a surface opposed to the mounting base 4 of the accelerator pedal 2 is formed in a projection shape, namely in an approximately dogleg shape from two planes 2a. Since the foreign matters remained on the mounting base 4 can be easily removed thereby, or the remaining foreign matters can be easily removed by pedaling the accelerator pedal 2, the accelerator pedal device for the vehicle can prevent foreign matters from being remained on the support member, and maintain the normal rotating operation of the accelerator pedal. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an accelerator pedal device for a vehicle that is incorporated in a driver's seat of a vehicle and outputs an electrical signal in accordance with an accelerator pedal depression amount by a driver.

  A conventional vehicle accelerator pedal device detects, for example, an accelerator pedal, a support member that is fixed to the floor of the vehicle and supports the accelerator pedal so as to be rotatable about a rotation axis, and rotational displacement of the accelerator pedal. There exists a thing of the structure provided with the detection means which outputs the electric signal according to it (refer patent document 1).

In this case, since the support member is fixed to the floor surface of the vehicle, the rotation axis of the accelerator pedal is also located in the vicinity of the floor surface of the vehicle, and therefore the accelerator pedal seems to grow from the floor surface of the vehicle. .
JP-A-6-299874

  In the conventional vehicle accelerator pedal device, the surface of the support member that faces the accelerator pedal is flat. Specifically, it is composed of a plane parallel to the rotation axis of the accelerator pedal. On the other hand, the surface facing the support member of the accelerator pedal is also composed of a plane parallel to the rotation axis. Further, since the support member is fixed to the floor surface of the vehicle, the upper surface of the support member, that is, the surface facing the accelerator pedal is substantially flush with the floor surface of the vehicle.

  For this reason, foreign substances, such as pebbles, on the floor surface of the driver's seat of the vehicle may be placed on the support member. When the driver depresses the accelerator pedal in such a state, the accelerator pedal hits a pebble, and from there on, it becomes impossible to depress the accelerator pedal, making it impossible to adjust the traveling speed of the vehicle.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a vehicular accelerator pedal device that can prevent foreign matter from remaining on a support member and maintain normal rotation of the accelerator pedal. It is to be.

  In order to achieve the above object, the present invention employs the following technical means.

  According to a first aspect of the present invention, an accelerator pedal device for a vehicle includes an accelerator pedal, a base member that is fixed to the floor of the vehicle and supports the accelerator pedal so as to be rotatable about a rotation axis, and a rotation of the accelerator pedal. Detecting means for detecting a dynamic displacement and outputting an electric signal corresponding to the detecting means, wherein the rotating shaft is an accelerator pedal device for a vehicle arranged in parallel with a mounting surface of the base member on the floor surface of the vehicle. Is formed so as to be convex toward the accelerator pedal in a cross section in a direction perpendicular to the mounting surface and parallel to the rotation axis.

  The portion where the accelerator pedal device for vehicles is installed on the floor surface of the vehicle driver's seat and the vicinity thereof are usually substantially horizontal, that is, substantially horizontal when the vehicle is placed in a horizontal state. Further, the rotation axis of the accelerator pedal is arranged substantially in parallel with the floor surface of the vehicle so that the driver can naturally perform the depressing operation without feeling uncomfortable.

  According to the above-described configuration, the accelerator pedal side surface of the base member is formed in a convex shape toward the accelerator pedal. In other words, the accelerator pedal side surface of the base member moves toward the outside from the inside of the base member. It is formed in the shape of an inclined surface so that it may approach the floor surface.

  For this reason, even if foreign matter such as pebbles on the floor surface of the driver's seat of the vehicle is placed on the base member, the pebbles roll on the surface of the base member and come out on the floor surface of the vehicle. Even if pebbles remain on the base member, if the accelerator pedal is stepped on and comes into contact with the pebbles and the pebbles are sandwiched between the back surface of the accelerator pedal and the base member, the back surface of the accelerator pedal and the contact between the base member and the pebbles The direction of action of the combined force of each force acting on the pebbles goes to the outside of the base member. Thereby, the pebbles are pushed out of the base member.

  As a result, it is possible to prevent a problem that a pebbles or the like are caught between the support member and the accelerator pedal in the conventional vehicle accelerator pedal device, and the depression operation of the accelerator pedal is hindered.

  Therefore, it is possible to provide a vehicular accelerator pedal device that can prevent foreign matter from staying on the support member and maintain normal rotation of the accelerator pedal.

  In this case, as in the vehicular accelerator pedal device according to claim 2 of the present invention, if the convex shape is formed in a substantially square shape, it is possible to reliably prevent foreign matter from staying on the base member.

  According to a third aspect of the present invention, the accelerator pedal device for a vehicle is formed such that the accelerator pedal has a convex shape toward the base member in a cross section perpendicular to the mounting surface of the base member and parallel to the rotation axis. It is characterized by that.

  According to the above configuration, when pebbles remain on the base member, when the accelerator pedal is stepped on and comes into contact with the pebbles and the pebbles are sandwiched between the back surface of the accelerator pedal and the base member, At the contact point between the base member and the pebbles, the magnitude of the combined force of each force acting on the pebbles, that is, the magnitude of the force toward the outside of the base member can be increased.

  Thereby, even if a foreign material remains on the base member, the foreign material can be reliably pushed out of the base member.

  In this case, as in the vehicle accelerator pedal device according to claim 4 of the present invention, if the convex shape is formed in a substantially square shape, the foreign matter is surely pushed out of the base member and the foreign matter remains on the base member. This can be reliably prevented.

  Hereinafter, a case where an embodiment of an accelerator pedal device for a vehicle according to the present invention is applied to an accelerator pedal device mounted on an automobile will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view illustrating a configuration of a vehicular accelerator pedal device according to a first embodiment of the present invention.

  2 is a cross-sectional view taken along line II-II in FIG. FIG. 2 is a cross-sectional view in a direction perpendicular to the mounting surface 4 b of the mounting base 4 and parallel to the rotation shaft 3.

  FIG. 3 is a cross-sectional view taken along the line II-II in FIG. 1 and shows a state in which the pebbles S are sandwiched between the accelerator pedal 2 and the mounting base 4.

  An accelerator pedal device 10 according to an embodiment of the present invention is fixed to a floor surface 9 and a front wall 10 at a lower front part of a driver's seat of an automobile via a mounting base 4 and a bracket 8.

  In FIG. 1, a solid line indicates a state when the driver does not step on the accelerator pedal 2, and a two-dot chain line indicates a maximum depression position in a normal driving state of the automobile. Accordingly, the accelerator pedal 2 is operated between the position indicated by the solid line and the position indicated by the two-dot chain line in FIG. The driver's seat (not shown) of the car is on the right side. In the case of an automobile equipped with an automatic transmission, the pedal is further stepped counterclockwise from the position indicated by a two-dot chain line in FIG.

  Below, the structure of the accelerator pedal apparatus 1 is demonstrated.

  The mounting base 4 that is a base member is made of, for example, a resin material. As shown in FIG. 1, the mounting base 4 holds the accelerator pedal 2 via a rotating shaft 3 so as to be rotatable around the rotating shaft. The mounting base 4 is fixed to the vehicle floor 9 via bolts or the like (not shown), with the mounting surface 4b in close contact with the vehicle floor 9. The mounting base 4 has a convex shape in a cross section in a direction perpendicular to the mounting surface 4b and parallel to the rotation axis 3, that is, in FIG. 2, toward the accelerator pedal 2 side (upward in FIG. 2). As shown in FIG. 2, it is composed of two planes 2a and is formed in a substantially square shape.

  The accelerator pedal 2 is made of, for example, a resin material. As shown in FIG. 2, an engagement arm 5 is provided at the tip of the accelerator pedal 2, that is, the left end in FIG.

  The engagement arm 5 is for transmitting a rotational movement around the rotation shaft 3 of the accelerator pedal 2 to the detection means 6 described later. The engagement arm 5 is provided with a notch portion 5 a, and this notch portion 5 a is engaged with the coupling pin 6 c of the lever 6 a of the detection means 6. The engagement arm 5 is formed integrally with the accelerator pedal 2.

  The accelerator pedal 2 has a convex shape in a cross section in a direction perpendicular to the mounting surface 4b of the mounting base 4 and parallel to the rotation axis 3, that is, toward the mounting base 4 side (downward in FIG. 2) in FIG. In detail, as shown in FIG. 2, it is formed in a substantially square shape. That is, the mounting base 4 side surface of the accelerator pedal 2 is composed of two flat surfaces arranged in a U-shape as shown in FIG.

  As the detection means 6, for example, a non-contact type using a magnetoresistive element (not shown) is used. That is, a magnetoresistive element (not shown) is fixed to the main body of the detecting means 6, and a magnet (not shown) is fixed to the rotating shaft 6b. When the rotating shaft 6b rotates via the lever 6a, the rotating shaft 6b and A magnet (not shown) also rotates integrally. Then, the magnetic flux density across the magnetoresistive element (not shown) changes, and the output voltage of the magnetoresistive element (not shown) changes, whereby the rotation angle of the rotating shaft 6b is detected, and the accelerator is The rotation angle of the pedal 2, that is, the depression amount of the accelerator pedal 2, is detected, and an electric signal corresponding to the depression amount of the accelerator pedal 2 is output to a control device (not shown).

  As shown in FIG. 1, a connecting pin 6c for connecting to the accelerator pedal 2 is fixed to the end of the lever 6a opposite to the rotating shaft 6b. The coupling pin 6c is locked in the notch portion 5a of the accelerator pedal 2, whereby the accelerator pedal 2 and the detection means 6 are connected to each other, and the rotational movement of the accelerator pedal 2 is caused by the rotation shaft 6b of the detection means 6. Is transmitted to.

  As shown in FIG. 1, the detection means 6 is fixed to the front wall 10 in front of the driver's seat in the automobile compartment via a bracket 8. That is, the accelerator pedal device 1 is fixed to the automobile with the mounting base 4 fixed to the floor surface 9 and the bracket 8 fixed to the front wall 10 respectively.

  Next, the effects of the shapes of the mounting base 4 and the accelerator pedal 2, which are the characteristics of the accelerator pedal device 1 according to the embodiment of the present invention configured as described above, will be described.

  First, in the conventional vehicle accelerator pedal device, the surface of the mounting base that faces the accelerator pedal is flat. Specifically, it is composed of a plane parallel to the rotation axis of the accelerator pedal. On the other hand, the surface facing the accelerator pedal mounting base is also composed of a plane parallel to the rotation axis. Further, since the mounting base is fixed to the floor surface of the vehicle, the upper surface of the mounting base, that is, the surface facing the accelerator pedal, is located on substantially the same plane as the floor surface of the vehicle.

  For this reason, when a foreign object such as a pebble on the floor surface of the driver's seat of the vehicle is placed on the mounting base, there is a high possibility that the upper surface of the mounting base continues to be placed on the mounting base as it is. When the driver depresses the accelerator pedal in such a state, the accelerator pedal hits a pebble, and from there on, the accelerator pedal cannot be depressed further, making it difficult to adjust the traveling speed of the vehicle.

  On the other hand, in the accelerator pedal device 1 according to the embodiment of the present invention, the upper surface of the mounting base 4 is formed in a square shape by two inclined planes as shown in FIG. Even if it is placed on the mounting base 4, it is unstable and cannot stay there, but rolls on the plane 4 a of the mounting base 4 and comes out on the floor of the automobile.

  It is also conceivable that the pebbles S may unfortunately stay on the mounting base 4. In this case, when the driver steps on the accelerator pedal 2, the accelerator pedal 2 comes into contact with the pebbles S, and the pebbles S are sandwiched between the accelerator pedal 2 and the mounting base 4. Here, when the driver depresses the accelerator pedal 2 with the depression force F, the reaction forces F2 and F4 acting on the pebbles S at the contact points between the plane 2a of the accelerator pedal 2 and the plane 4a of the mounting base 4 and the pebbles S are combined. The acting direction of the force Fc is a direction toward the outside of the mounting base 4 as shown in FIG. For this reason, the pebbles S are immediately pushed out of the mounting base 4.

  As described above, according to the accelerator pedal device 1 according to the embodiment of the present invention, even if a foreign object such as a pebble enters the mounting base 4, it can be easily and immediately discharged. Therefore, it is possible to realize the accelerator pedal device 1 that can maintain a simple rotation operation.

  In the accelerator pedal device 1 according to the embodiment of the present invention described above, the surface of the mounting base 4 that faces the accelerator pedal and the surface that faces the accelerator pedal 2 mounting base 4 are formed in a convex shape. The number of planes 4a and two planes 2a is not necessarily limited to two. If the entire plane has a convex shape, at least one of the mounting base 4 and the accelerator pedal 2 is used. May be composed of three or more planes. Alternatively, at least one of the surface facing the accelerator pedal of the mounting base 4 and the surface facing the accelerator pedal 2 mounting base 4 is formed by one curved surface, for example, a part of a cylindrical surface or a part of an elliptical surface. Also good.

  Moreover, in the accelerator pedal apparatus 1 by one Embodiment of this invention demonstrated above, although the convex shape in the attachment base 4 and the accelerator pedal 2 is comprised from the some plane 4a and the some plane 2a, respectively, The surface is not limited to a flat surface, and may be a curved surface, for example, an outwardly convex curved surface.

  Moreover, in the accelerator pedal apparatus 1 by one Embodiment of this invention demonstrated above, although both the surface facing the accelerator pedal of the attachment base 4 and the surface facing the accelerator pedal 2 attachment base 4 are made into convex shape, Only the surface of the mounting base 4 that faces the accelerator pedal 2 may be convex, and the surface of the accelerator pedal 2 that faces the mounting base 4 may be a flat surface.

  Moreover, although the said embodiment makes the application object of this invention a motor vehicle, you may apply to vehicles, such as vehicles other than a motor vehicle, for example, a construction machine, an agricultural machine, or a forestry machine.

  The present invention is not limited to the above-described embodiment, and can be applied to various embodiments without departing from the gist thereof.

It is sectional drawing showing the structure of the accelerator pedal apparatus for vehicles by 1st Embodiment of this invention. It is the II-II sectional view taken on the line in FIG. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1, showing a state in which pebbles S are sandwiched between an accelerator pedal 2 and a mounting base 4.

Explanation of symbols

1 Accelerator pedal device (Vehicle accelerator pedal device)
2 Accelerator pedal 2a Plane 3 Rotating shaft 4 Mounting base (base member)
4a plane 4b mounting surface 5 engaging arm 5a notch 6 detecting means 6a lever 6b rotating shaft 6c connecting pin 8 bracket 9 floor 10 front wall F stepping force Fc composite force F2 reaction force F4 reaction force S pebble

Claims (4)

An accelerator pedal,
A base member fixed to a vehicle floor and supporting the accelerator pedal so as to be rotatable about a rotation axis;
Detecting means for detecting the rotational displacement of the accelerator pedal and outputting an electrical signal in accordance therewith,
The rotating shaft is a vehicle accelerator pedal device arranged parallel to a surface of the base member attached to the floor surface of the vehicle,
The vehicular accelerator pedal device, wherein the base member is formed to be convex toward the accelerator pedal side in a cross section in a direction perpendicular to the mounting surface and parallel to the rotation axis.   The accelerator pedal device for a vehicle according to claim 1, wherein the convex shape is a substantially square shape.   2. The accelerator pedal according to claim 1, wherein the accelerator pedal is formed to have a convex shape toward the base member in a cross section perpendicular to the mounting surface of the base member and parallel to the rotation axis. Item 3. The accelerator pedal device for a vehicle according to Item 2.   The accelerator pedal device for a vehicle according to claim 3, wherein the convex shape is a substantially square shape.

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