JP2008059202A - Vehicle pedal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle pedal excellent in fitness and controllability. <P>SOLUTION: In an organ-type accelerator pedal 10, the tread 46 of a pedal pad 12 has an arcuate surface with a predetermined diameter on a side view. More specifically, the radius R of the arcuate surface of the tread 46 is set at 1000±300mm, thereby enhancing both fitness and controllability. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an organ type vehicle pedal.

In a conventional organ type accelerator pedal, the tread surface has a flat shape (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 4-30239 JP 2004-106776 A

  However, in the case of an organ-type accelerator pedal with a flat tread surface, when the driver depresses the accelerator pedal, only a part of the sole hits the tread surface, and the load moves to the toes as the accelerator pedal is depressed. There is a problem that ideal fit and controllability cannot be reproduced because the load on the heel is removed.

  In consideration of the above facts, an object of the present invention is to obtain a vehicle pedal that is excellent in fit and controllability.

  The invention of claim 1 is an organ-type vehicle pedal arranged on the driver's seat side of the vehicle body floor, characterized in that the side surface shape of the pedal tread surface to which the driver's stepping force is applied is a concave curved surface shape. To do.

  According to a second aspect of the invention, in the vehicle pedal according to the first aspect, the concave curved surface shape includes an arc surface having a radius of 1000 ± 300 mm.

  According to the first aspect of the present invention, since the side surface shape of the pedal tread surface of the vehicle pedal is a concave curved surface shape, the pedal tread surface fits the sole of the driver as compared with a flat vehicle pedal. In other words, whether it is a leather shoe or a walking shoe, the shoe sole is often formed in a concave curved shape both vertically and horizontally. Therefore, when the side surface shape of the pedal tread surface is a concave curved surface shape, it fits the sole of the driver when the pedal is operated.

  Further, if the pedal tread is flat, the pedal tread and the driver's foot will be scored, and as the driver steps on the vehicle pedal, the contact position between the pedal tread and the foot will shift toward the fingertip. On the other hand, when the pedal side surface shape is a concave curved surface shape as in the present invention, the pedal tread surface and the driver's foot contact with each other, and the contact position between the pedal tread surface and the foot when the driver steps on the pedal tread surface Suppression is suppressed (the contact position does not move to the toe side). That is, the surface pressure applied from the pedal tread to the sole is within a certain zone, and the entire foot can be depressed.

  According to the second aspect of the present invention, since the concave curved surface shape is configured to include an arc surface having a radius of 1000 ± 300 mm, the deviation amount when the stepping back operation is continuously performed is within 15 mm. Here, it has been empirically understood that the driver feels the deviation during the pedal operation when the deviation from the initial state exceeds about 15 mm. Therefore, as shown in the present invention, when the concave curved surface shape is formed including the circular arc surface having a radius of 1000 ± 300 mm, the driver does not feel any deviation.

  As described above, the vehicle pedal according to claim 1 has an excellent effect that the fit and controllability can be improved.

  The pedal for a vehicle according to the second aspect of the present invention has an excellent effect that the fit and controllability can be further improved.

  Hereinafter, an embodiment of a vehicle pedal according to the present invention will be described with reference to FIGS. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, and an arrow UP indicates the vehicle upper side.

  First, an example of the peripheral structure of the organ type accelerator pedal according to the present embodiment will be outlined. FIG. 2 is a side view showing an assembled state of the organ type accelerator pedal 10 according to the present embodiment to the vehicle body. FIG. 1 shows a side view of the accelerator pedal 10 in a single item state.

  As shown in these drawings, the accelerator pedal 10 includes a pedal pad 12 formed in a substantially rectangular flat plate shape. An attachment portion 14 formed in a substantially trapezoidal shape in a side view is integrally formed on the lower end side of the back surface of the pedal pad 12. Correspondingly, a pedal support portion 18 is provided on the vehicle body floor 16, and a mounting portion 14 is rotatably supported by the pedal support portion 18 by a hinge pin 19.

  On the other hand, a rod support 28 is fixed to a predetermined position on the indoor surface of the dash panel 20 with a bolt 30 and a weld nut 32 with a substantially cylindrical collar 26 therebetween. The rod support 28 is provided with a rotation center shaft 34 whose axial direction is the vehicle width direction, and the pedal rod 36 is supported so as to be rotatable around the rotation center shaft 34. The pedal rod 36 is formed by appropriately bending a rod-shaped member, and is disposed substantially along the vehicle vertical direction. Note that the movement locus of the lower end portion 36A of the pedal rod 36 when the pedal pad 12 of the accelerator pedal 10 is depressed is a one-dot chain line P in FIG.

  A coil portion of a torsion coil spring (which is an element grasped as “biasing means” in a broad sense) is wound around the outer peripheral portion of the rotation center shaft 34. One end of the torsion coil spring is locked to the rod support 28, and the other end is locked to the pedal rod 36. Accordingly, the pedal rod 36 is urged to rotate counterclockwise (in the direction of arrow A in FIG. 2) around the rotation center axis 34, and the pedal rod 36 is rotated clockwise (in FIG. 2) against this urging force. By rotating in the direction opposite to the arrow A direction, the opening of a throttle valve (not shown) is changed.

  A pedal rod roller 38 (in a broad sense, a “connecting portion (material) for connecting the pedal pad and the pedal rod of the accelerator pedal) is provided on the upper side (the anti-hinge portion side) of the back surface of the pedal pad 12 in the accelerator pedal 10 described above. Is an element grasped as “)”. The pedal rod roller 38 includes a base portion 38A formed in a substantially rectangular parallelepiped shape thinner than the thickness of the pedal pad 12, and a connecting portion 38B formed integrally from the base portion 38A and formed in a substantially triangular shape in a side view. It is configured to include. The connecting portion 38 </ b> B is disposed inside the pedal pad 12 (within the thickness) and is supported by the pin 40. Accordingly, the pedal rod roller 38 can be slightly rotated (oscillated) around the pin 40.

  The lower end portion 36 </ b> A of the pedal rod 36 described above is bent in the direction perpendicular to the axis, and the lower end portion 36 </ b> A is inserted into a long hole 42 formed in the apex portion of the connecting portion 38 </ b> B of the pedal rod roller 38. Thereby, the pedal rod 36 and the pedal pad 12 of the accelerator pedal 10 are connected so as to be relatively rotatable. The long hole 42 is formed substantially parallel to the pedal pad 12.

  Here, in the present embodiment, the tread surface 46 of the pedal pad 12 to which the driver's stepping force is applied is formed in a concave curved surface shape when viewed from the side of the pedal, and this is a feature of the present embodiment. More specifically, the tread surface 46 is an arc surface having a radius of 1000 mm. However, as will be described later, the radius of the tread 46 may be in a range of 1000 ± 300 mm.

  (Operation and effect of this embodiment)

  Next, the operation and effect of this embodiment will be described.

  First, the overall operation of the organ type accelerator pedal 10 according to the present embodiment will be outlined. The state shown in FIG. 2 is an initial state of the accelerator pedal 10 (a state before being depressed). When the driver depresses the pedal pad 12 of the accelerator pedal 10 in the initial state from this state, the pedal pad 12 counterclockwise around the hinge pin 19 against the urging force of a torsion coil spring (not shown) (in FIG. 2). It is rotated in the direction of arrow B). For this reason, the pedal rod 36 connected to the pedal pad 12 via the pedal rod roller 38 is rotated clockwise (the direction opposite to the arrow A direction in FIG. 2) about the rotation center axis 34. As a result, the upper end portion of the pedal rod 36 rotates clockwise around the rotation center axis 34, and the opening degree of the throttle valve is changed.

  Here, in the present embodiment, since the tread surface 46 of the pedal pad 12 is configured by an arc surface having a radius of 1000 ± 300 mm, the tread surface of the pedal pad fits the sole of the driver as compared with a conventional accelerator pedal having a flat surface. That is, as shown in FIGS. 3 (A) and 3 (B), the shoe sole 48A of about 90% of the leather shoes 48 that are commercially available is formed in a convex curved shape both vertically and horizontally. The same is true for walking shoes. Therefore, if the side surface shape of the tread surface 46 of the pedal pad 12 is a concave curved surface shape, the tread surface 46 fits on the sole of the driver when the pedal is operated.

  Also, if the pedal pad tread is flat as in the past, the pedal pad tread and the driver's foot will be spotted, and as the driver steps on the pedal pad tread, the tread and foot contact position Shifts towards the fingertip. This is shown in FIG. From this figure, it can be seen that as the accelerator pedal shifts from the fully closed state to the fully opened state, the contact position (ie, the load position) between the tread surface of the pedal pad and the sole of the driver shifts to the fingertip side.

  On the other hand, when the side surface shape of the tread surface 46 is 1000 ± 300 mm like the pedal pad 12 of the accelerator pedal 10 according to the present embodiment, the tread surface 46 of the pedal pad 12 and the sole 48A of the driver face each other. When the driver steps on the treading surface 46 of the pedal pad 12, the shift of the contacting position between the treading surface 46 of the pedal pad 12 and the sole 48A is suppressed. This is shown in FIG. As shown in this figure, it can be seen that the contact position (that is, the load position) between the tread surface 46 and the sole 48A of the pedal pad 12 does not shift to the fingertip side in the entire range from the fully closed position to the fully open position. That is, the surface pressure applied from the tread surface 46 of the pedal pad 12 to the sole 48A is within a certain zone Z, and the pedal pad 12 can be depressed by the entire sole 48A (the entire thumb ball).

  FIG. 6 shows the relationship between the load and the stroke when the conventional type accelerator pedal 100, that is, the accelerator pedal 100 in which the tread surface 104 of the pedal pad 102 is configured as a flat surface is used.

  As shown in this figure, in the case of the conventional accelerator pedal 100, not only the contact surface of the thumb ball part is small in the initial stage (see FIG. 6A), but also in the middle period (see FIG. 6B). Also in the latter period (see FIG. 6C), the contact surface of the thumb ball part is small. Graph (A) is a graph showing the load on the toe, and Graph (A) is a graph showing the load on the buttocks. However, as the pedal stroke increases, the buttocks float and the load on the toes is increased. It can be seen that the load on the buttocks goes out by moving.

  On the other hand, in the case of the accelerator pedal 10 according to the present embodiment, not only the contact surface of the thumb ball part is large in the initial stage (see FIG. 7A), but also in the middle period (see FIG. 7B) and Even in the latter period (see FIG. 7C), the contact surface of the thumb ball part is large. Graph (A) is a graph showing the load on the toe, and Graph (A) is a graph showing the load on the buttocks, but the buttocks do not float even if the pedal stroke increases. It can be seen that the load does not move to the toes and the load on the buttocks is not lost.

  Thus, in the accelerator pedal 10 according to the present embodiment, the tread surface 46 of the pedal pad 12 has a concave curved surface shape, particularly an arc surface shape with a predetermined radius, so that it can be stepped on the entire sole of the foot (the entire thumb ball). As a result, fit and pedal controllability can be improved.

  Further, as a more preferable numerical value, since the radius R of the arc surface constituting the tread surface 46 is set to R = 1000 ± 300 mm (700 mm to 1300 mm), the deviation amount when the stepping back operation is continuously performed is within 15 mm. . Here, since it is empirically that the driver feels deviation during pedal operation when it exceeds about 15 mm from the initial state, the radius R of the arc surface constituting the tread surface 46 as in this embodiment is set to R = By setting it to 1000 ± 300 mm (700 mm to 1300 mm), the driver does not feel any deviation.

  FIG. 8 shows data that supports this.

  In this graph, the vertical axis indicates the amount of displacement (mm), the horizontal axis indicates the pedal stroke (mm), and the tread surface 46 of the pedal pad 12 of the accelerator pedal 10 is composed of arc surfaces of R = 1000 mm, 700 mm, and 1300 mm. For the four types in total when the conventional and flat types are used, the amount of deviation between the toe and the heel when the accelerator pedal 10 is continuously operated three reciprocations from fully closed to fully open is measured. In addition, since it is empirically understood that the result does not change from the case of 3 reciprocations even if the number of reciprocations is 4 or more, the data is taken up to 3 reciprocations. Further, for convenience of explanation, symbols from A to H are assigned in order from the top to the step-down graph, and symbols from A ′ to H ′ in the order from the top to the return side graph.

  In the case of a conventional straight type accelerator pedal, the graph F is traced by depressing the first round trip from the initial state (the pedal stroke is 0.00 mm and the displacement amount is 0.00 mm), and the graph A ′ is obtained by returning the third round trip. follow. Accordingly, the amount of deviation from the initial state is δ1 on the toe side, and is displaced by 15 mm or more (about 18 mm) from the initial state, so the driver feels deviation on the toe side during pedal operation. In the graph, the horizontal line indicated by Q is a 15 mm line which is a border line indicating whether or not a shift is felt. Further, since the heel returns from the graph A to the graph F ′, the deviation amount is about 5 mm, which is within the allowable range.

  In the same manner, in the case of the accelerator pedal 10 of the present embodiment, when the tread surface 46 is configured by an arc surface of R = 1000 mm, the graph G is traced by the first stepping from the initial state, and three reciprocations are made. In returning the eye, the graph E ′ is traced. Accordingly, the amount of deviation from the initial state is δ2 on the toe side, which is a good value of about 8 mm which is 15 mm or less.

  In the case of the accelerator pedal 10 of the present embodiment, when the tread surface 46 is formed of an arc surface of R = 700 mm, the graph D is traced by the first reciprocal stepping from the initial state, and the graph B ′ is retraced by the third reciprocating step. follow. Therefore, the amount of deviation from the initial state is δ3 (same as δ2) on the toe side, which is a good value of about 8 mm which is 15 mm or less.

  In the case of the accelerator pedal 10 of the present embodiment, when the tread surface 46 is formed of an arc surface of R = 1300 mm, the graph H is traced by the first reciprocal stepping from the initial state, and the graph C ′ is retraced by the third reciprocating step. follow. Accordingly, the amount of deviation from the initial state is δ4 on the toe side, which is about 12.5 mm which is 15 mm or less, which is still a value with some margin.

  The remaining graph shows the amount of shift on the heel side, and the same view may be used.

  From the above, it can be seen that when the radius of the arc surface when the tread surface 46 of the accelerator pedal 10 is viewed in a side view is set to R = 1000 ± 300 mm, an accelerator pedal satisfying both fit and controllability can be obtained.

  In addition, if there is no gap between the toes and the heel, there will be no extra foot movement, and the driver's fatigue can be reduced.

  [Supplementary explanation of this embodiment]

  In addition, in this embodiment mentioned above, although the side surface shape (shape in the pedal side view) of the tread surface 46 of the pedal pad 12 of the accelerator pedal 10 was comprised by the circular arc surface of the predetermined radius, it is not restricted to this but planar shape (pedal (When viewed from the upper end side) may also be constituted by a concave curved surface such as an arc surface having a predetermined radius. An example is shown in FIG. 9, but the tread surface 64 of the pedal pad 62 of the accelerator pedal 60 has a concave curved surface shape when viewed in a side view or a plan view.

  Moreover, in this embodiment mentioned above, although the tread surface 46 was comprised by the single circular arc surface, it is not restricted to this, A tread surface is made into the compound surface which used the circular arc surface of radius R = 1000 +/- 300mm as a main curved surface (main part). It may be configured. For example, the surface to which the treading force is applied excluding the upper end and the lower end of the tread is configured by an arc surface having a radius R = 1000 ± 300 mm, and is provided on the upper end side or the lower end side of the arc surface or both the upper end side and the lower end side. The tread may be composed of a composite surface to which a curved surface different from this is added.

It is a perspective view which shows schematic structure of the pedal pad of the accelerator pedal which concerns on this embodiment. It is a side view which shows the assembly | attachment state to the vehicle body of the organ type accelerator pedal which concerns on this embodiment. (A) is a front view of leather shoes, (B) is a side view of leather shoes. It is explanatory drawing for demonstrating the controllability when using the conventional accelerator pedal. It is explanatory drawing for demonstrating controllability when using the accelerator pedal of this embodiment. It is a graph which shows the relationship between the pedal stroke and load when using the conventional accelerator pedal. It is a graph which shows the relationship between a pedal stroke when using the accelerator pedal of this embodiment, and a load. It is the data which shows each deviation | shift amount of a toe when a 3 reciprocating strokes are carried out using various accelerator pedals. It is a perspective view corresponding to FIG. 1 which shows schematic structure of the pedal pad of the accelerator pedal which concerns on a modification.

Explanation of symbols

10 Accelerator pedal (vehicle pedal)
12 Pedal pad 16 Car body floor 19 Hinge pin 46 Tread 60 Accelerator pedal (vehicle pedal)
62 Pedal pad 64 Tread

Claims (2)

An organ type vehicle pedal arranged on the driver's side of the vehicle body floor,
The side surface shape of the pedal tread surface to which the driver's treading force is applied is a concave curved surface shape.
The pedal for vehicles characterized by the above-mentioned. The concave curved surface shape includes an arc surface having a radius of 1000 ± 300 mm.
The vehicle pedal according to claim 1.

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