JP2015048052A - Attachment structure of pedal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve strength and rigidity of an attachment part of a pedal device while inhibiting mass increase of a vehicle.SOLUTION: An attachment structure S of a pedal device includes: a pedal device 10 which gradually changes a tread force; and an attachment bracket 12 attached to a dash panel 20 etc. (a vehicle body) and having a double structure comprising an upper bracket 24 positioned at the pedal device 10 side and a lower bracket 26 positioned at the vehicle body side, the attachment bracket 12 to which the pedal device 10 is attached.

Description

  The present invention relates to a mounting structure for a pedal device.

  A pedal device having a kick-down switch is disclosed (see Patent Document 1).

JP 2013-61706 A

  The kick-down switch according to the above-described conventional example is a mechanism that generates an operational feeling (moderation feeling) of the accelerator pedal in order to inform the driver that the vehicle has entered an acceleration posture when the accelerator pedal is greatly depressed. . In order to clarify this feeling of operation, the kick down switch is activated when the accelerator pedal is depressed with a large depression force in an area that exceeds the normal accelerator pedal operation amount, and the reaction force at that time is applied from the pedal to the sole of the foot. To communicate. Therefore, when the pedal device has the kick-down switch, the pedal force of the accelerator pedal is significantly increased compared to the case where the pedal device does not have the kick-down switch.

  On the other hand, in the above conventional example, the upper limit of the stroke in the depression direction of the accelerator pedal is determined by the housing of the pedal device. The mounting portion of the pedal device in the vehicle body is a very large thin plate such as a dash panel (a vehicle body front wall), a dash cross member, a wheel house, or the like. Therefore, when the accelerator pedal is stepped up to the upper limit of the stroke, the reaction force from the mounting portion to the pedal device and the moment input to the mounting portion increase due to the lever principle.

  Thus, since a large load acts on the mounting portion of the pedal device in the vehicle body by the kick down switch and the housing, the mounting portion needs to have a strong structure. As a countermeasure, it is conceivable to increase the plate thickness of the attachment portion, but the increase in mass is large because the thin plate provided with the attachment portion is very large.

  In view of the above facts, an object of the present invention is to increase the strength and rigidity of the mounting portion of the pedal device while suppressing an increase in the mass of the vehicle.

  The invention according to claim 1 (the mounting structure of the pedal device) includes a pedal device in which the pedal force varies stepwise, an upper bracket that is attached to the vehicle body and is attached to the vehicle body, and is positioned on the pedal device side, and the vehicle body side. And a mounting bracket having a double structure with a lower bracket positioned at the front end.

  In this pedal device mounting structure, since the mounting bracket for mounting the pedal device to the vehicle body is a double structure, an increase in the mass of the vehicle is suppressed compared to the case where the mounting bracket and the vehicle body are thickened. The Moreover, since the structure of the attachment part of the pedal device is strong, even if the pedal effort changes stepwise, deformation of the attachment part is suppressed. For this reason, the intensity | strength and rigidity of the attaching part of the pedal apparatus in a vehicle body can be improved, suppressing the mass increase of a vehicle.

  According to a second aspect of the present invention, in the mounting structure for the pedal device according to the first aspect, the mounting bracket is fixed to the vehicle body at a plurality of fastening points, and is at two locations closest to the input point of the pedaling force for the pedal device. The mounting bracket has a closed cross-sectional structure in a linear direction connecting the centers of the fastening points.

  In this pedal device mounting structure, the mounting bracket has a closed cross-sectional structure in the linear direction connecting the centers of the two fastening points closest to the pedal force input point to the pedal device. Strength and rigidity can be increased.

  According to a third aspect of the present invention, in the pedal device mounting structure according to the first or second aspect, the upper bracket and the lower bracket are integrated in advance before mounting to the vehicle body.

  In this pedal device mounting structure, the upper bracket and the lower bracket are integrated in advance before mounting to the vehicle body, so that the ease of assembling the pedal device to the vehicle body is improved.

  As described above, the pedal device mounting structure according to claim 1 is excellent in that the strength and rigidity of the mounting portion of the pedal device in the vehicle body can be increased while suppressing an increase in the mass of the vehicle. An effect is obtained.

  According to the pedal device mounting structure of the second aspect, it is possible to obtain an excellent effect that the strength and rigidity can be increased while reducing the weight of the mounting bracket.

  According to the mounting structure of the pedal device according to the third aspect, it is possible to obtain an excellent effect that the assembling property of the pedal device to the vehicle body is good.

It is a perspective view which shows the attachment structure of a pedal apparatus. It is an expansion perspective view which shows a mounting bracket. It is a disassembled perspective view which shows a mounting bracket. FIG. 4 is an enlarged sectional view taken along line 4-4 in FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In FIG. 1, the pedal device mounting structure S according to this embodiment includes a pedal device 10 and a mounting bracket 12.

  The pedal device 10 is an accelerator pedal device, and is configured such that, for example, the pedaling force varies stepwise at a position where the amount of depression with respect to the pedal 14 is maximized. For example, a kick-down switch (not shown) is provided in the housing 18 of the pedal device 10 in order to vary the pedaling force stepwise. The shaft portion 16 of the pedal 14 is rotatably supported in the housing 18 and is urged to the rear side of the vehicle by an elastic body such as a spring, and is stroked within a predetermined range by a pedaling force of a driver (not shown). (Oscillation) is possible. The upper limit of the stroke in the depression direction of the pedal 14 is determined by the housing 18. As a result, when the pedal 14 is depressed, the upper limit of the stroke is reached before the pedal 14 abuts against the floor 30 as an example of the vehicle body. In other words, even when the pedal 14 reaches the upper limit of the stroke in the depression direction, the pedal 14 does not come into contact with the floor 30.

  2 to 4, the mounting bracket 12 is attached to the vehicle body and the pedal device 10 is attached, and has a double structure including an upper bracket 24 positioned on the pedal device 10 side and a lower bracket 26 positioned on the vehicle body side. ing. The upper bracket 24 and the lower bracket 26 are integrated in advance before being mounted on the vehicle body to form the mounting bracket 12. Here, the vehicle body is, for example, the floor 30, the dash panel 20 (the front wall of the vehicle body cabin), the dash cross member 34, and the like, which are located at the feet of the driver's seat. As shown in FIG. 4, a portion of the dash panel 20 on the outer side in the vehicle width direction is an inclined surface 20 </ b> A inclined toward the vehicle rear side. For example, the lower portion of the A pillar 22 is joined to the front portion of the inclined surface 20A.

  As shown in FIGS. 2 and 3, the upper bracket 24 is a member obtained by press-molding a metal plate, for example. The upper bracket 24 is provided with an attachment surface 24A to which the pedal device 10 is attached. The mounting surface 24A is formed to be substantially flat. For example, three stud bolts 28 are erected. The housing 18 of the pedal device 10 is passed through the stud bolt 28. As shown in FIG. 1, the housing 18 of the pedal device 10 is fixed to the upper bracket 24 by tightening a nut 38 to the stud bolt 28.

  As shown in FIGS. 2 to 4, the portion of the mounting surface 24 </ b> A surrounded by the three stud bolts 28 projects to the vehicle front side (lower bracket 26 side) from the mounting surface 24 </ b> A. A flange portion 24B in which the through hole 24C is formed is formed. The flange portion 24B is continuously formed around the through hole 24C.

  As shown in FIGS. 2 and 3, a mounting portion 24 </ b> D corresponding to a fastening point 31 (FIGS. 1 and 4) to be described later is provided at the vehicle width direction outer side end on the vehicle lower side of the mounting surface 24 </ b> A. ing. The mounting portion 24D is formed to be bent toward the vehicle rear side with respect to the mounting surface 24A. A through hole 24E for passing the bolt 41 (FIGS. 1 and 4) is formed in the mounting portion 24D. The edge 24F of the mounting portion 24D is further bent toward the vehicle rear side. Thereby, the surface rigidity of attachment part 24D is improved. As shown in FIG. 4, the mounting portion 24D overlaps with a mounting portion 26D of the lower bracket 26 described later, and the bolt 41 and the mounting portion 26D are mounted on the inclined surface 20A on the outer side in the vehicle width direction of the dash panel 20, for example. The nut 51 is used for fastening. The nut 51 is fixed in advance by welding or the like, for example, on the back surface side of the inclined surface 20A.

  A vertical wall portion 24G is provided on the inner side in the vehicle width direction of the mounting surface 24A. As shown in FIG. 4, the vertical wall portion 24G is formed to be bent toward the vehicle front side with respect to the mounting surface 24A. The vertical wall portion 24G and the mounting surface 24A are substantially orthogonal to each other. As shown in FIGS. 2 and 3, a notch-shaped bead 24H for reinforcement is provided at a boundary portion between the vertical wall portion 24G and the mounting surface 24A. The height dimension of the vertical wall portion 24G with respect to the mounting surface 24 is set to be large on the vehicle upper side and small on the vehicle lower side.

  A flange portion 24J is continuously provided at an edge of the vertical wall portion 24G on the vehicle front side. The flange portion 24J is formed to be bent inward in the vehicle width direction with respect to the vertical wall portion 24G. The vertical wall portion 24G and the flange portion 24J are substantially orthogonal to each other. As described above, since the height dimension of the vertical wall portion 24G with respect to the mounting surface 24 is not constant, the flange portion 24J is formed in a three-dimensional manner. An end of the flange portion 24J on the vehicle lower side is an attachment portion 24K corresponding to a fastening point 32 (FIGS. 1 and 4) described later. A substantially central portion of the flange portion 24J in the vehicle vertical direction is an attachment portion 24M corresponding to a fastening point 33 (FIGS. 1 and 4) described later.

  As shown in FIGS. 2 and 3, a through hole 24 </ b> L through which the bolt 42 (FIGS. 1 and 4) passes is formed in the mounting portion 24 </ b> K. A collar 62 is attached to the back surface (surface on the vehicle front side) of the attachment portion 24K. As shown in FIGS. 1 and 4, the mounting portion 24 </ b> K is fastened to the dash panel 20 using bolts 42 and nuts 52 together with the collar 62 and the mounting portion 26 </ b> K of the lower bracket 26 described later. Yes. The nut 52 is fixed in advance to the back side of the dash panel 20 by welding or the like, for example.

  As shown in FIGS. 2 and 3, a through hole 24 </ b> N through which a bolt 43 (FIGS. 1 and 4) passes is formed in the mounting portion 24 </ b> M. A collar 63 is attached to the back surface (surface on the vehicle front side) of the attachment portion 24M. As shown in FIGS. 1 and 4, the attachment portion 24 </ b> M is fastened to the dash cross member 34 together with the collar 63 using, for example, a bolt 43 and a nut (not shown). This nut is fixed in advance to the back side of the dash cross member 34 by welding or the like, for example.

  The dash cross member 34 is joined to the passenger compartment side of the dash panel 20 and extends in the vehicle width, and projects beyond the dash panel 20 to the vehicle rear side. The position of the attachment portion 24M fastened to the dash cross member 34 is located on the vehicle rear side with respect to the attachment portion 24K fastened to the dash panel 20. The attachment portion 24M and the attachment portion 24K are connected by an intermediate portion 24P of the flange portion 24J.

  Flange portions 24Q and 24R projecting toward the lower bracket 26 are provided at the vehicle lower side end edges of the mounting surface 24A and the vertical wall portion 24G. The flange portions 24 </ b> B, 24 </ b> J, 24 </ b> Q, 24 </ b> R and the like are integrally connected over the entire circumference of the upper bracket 24.

  Next, as shown in FIGS. 3 and 4, the lower bracket 26 is a member formed by press-molding a metal plate, for example. The lower bracket 26 is provided with a horizontal wall portion 26A facing the back surface of the mounting surface 24A of the upper bracket 24, and a vertical wall portion 26G facing the vertical wall portion 24G. The horizontal wall portion 26A and the vertical wall portion 26G are substantially orthogonal to each other. A mounting portion 26D corresponding to a fastening point 31 (FIGS. 1 and 4), which will be described later, is provided at the outer end of the lateral wall portion 26A in the vehicle width direction. The mounting portion 26D is formed to be bent toward the vehicle rear side with respect to the lateral wall portion 26A. A through hole 26E for passing the bolt 41 (FIGS. 1 and 4) is formed in the mounting portion 24D. As shown in FIG. 4, the mounting portion 26 </ b> D overlaps with the mounting portion 24 </ b> D of the upper bracket 24, and the bolt 41 and the nut 51 are formed on the inclined surface 20 </ b> A on the outer side in the vehicle width direction of the dash panel 20, for example. It is supposed to be fastened using. At this time, the attachment portion 26D is sandwiched between the attachment portion 24D and the inclined surface 20A.

  As shown in FIG. 3, a mounting portion 26 </ b> K is provided at an end edge of the vertical wall portion 26 </ b> G on the vehicle front side. The attachment portion 26K is formed to be bent inward in the vehicle width direction with respect to the vertical wall portion 26G. A through hole 26L through which the bolt 42 (FIGS. 1 and 4) is passed is formed in the mounting portion 26K. As shown in FIGS. 1 and 4, the mounting portion 26 </ b> K is fastened to the dash panel 20 by using bolts 42 and nuts 52 together with the collar 62 and the mounting portion 24 </ b> K of the upper bracket 24 described later. Yes.

  A front wall portion 26P is provided at the vehicle front side edge of the horizontal wall portion 26A and the vertical wall portion 26G. A portion of the front wall portion 26P is overlapped and joined to the intermediate portion 24P of the upper bracket 24 (joint portion W1). A flange portion 26B is provided on the vehicle upper end edge of the front wall portion 26P. The flange portion 26B is overlapped with and joined to the flange portion 24B of the upper bracket 24 (joint portions W2 and W3). A flange portion 26C is provided on the vehicle upper side of the attachment portion 26D, and a flange portion 26F is provided on the vehicle lower side. The flange portions 26C and 26F are overlapped and joined with the flange portion 24F of the upper bracket 24 (joint portions W4 and W5). Flange portions 26Q and 26R are sequentially provided on the inner side in the vehicle width direction of the flange portion 26F. The flange portions 26Q and 26R are overlapped and joined to the flange portions 24Q and 24R of the upper bracket 24 (joint portions W6 and W7). Each joint part is joined by welding or adhesion, for example.

  As shown in FIG. 1, the mounting bracket 12 is fixed to the vehicle body at a plurality of fastening points 31, 32, 33. The mounting bracket 12 has a closed cross-sectional structure in the direction of the straight line L connecting the centers of the two fastening points 31 and 32 closest to the pedal force input point (pedal 14) for the pedal device 10 (see FIG. 4). As shown in FIG. 4, a bolt 41 and a nut 51, a bolt 42 and a nut 52, and a bolt 43 and a nut (not shown) are used for fastening the fastening points 31, 32, and 33, respectively.

  As shown in FIG. 4, in the mounting bracket 12, the back surface of the mounting surface 24A of the upper bracket 24 is separated from the horizontal wall portion 26A of the lower bracket 26, and the vertical wall portion 24G is separated from the vertical wall portion 26G. The attachment portions 24D and 26D are fastened to the inclined surface 20A of the dash panel 20 in a state of being overlaid (fastening point 31). The attachment portions 24K and 26K are fastened to the dash panel 20 with the collar 62 sandwiched therebetween (fastening point 32). Thereby, the mounting bracket 12 has a closed cross-sectional structure at least in the cross-sectional position shown in FIG. Note that the mounting bracket 12 may have a closed cross-sectional structure in a linear direction connecting the centers of the fastening points 31 and 33 and further in a linear direction connecting the centers of the fastening points 32 and 33.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 4, in the pedal device mounting structure S according to the present embodiment, the mounting bracket 12 for mounting the pedal device 10 to the vehicle body has a double structure having an upper bracket 24 and a lower bracket 26. Compared with the case where the bracket 12 and the vehicle body are thickened, an increase in the mass of the vehicle is suppressed.

  Further, since the structure of the mounting portion (including the dash panel 20 and the mounting bracket 12) of the pedal device 10 in the vehicle body is strong, even if the pedal force of the pedal 14 changes stepwise, the mounting portion is not deformed. It is suppressed. As a structure in which the pedaling force changes stepwise in this way, there is a case where the pedal device 10 has a kick down switch.

  In the present embodiment, the mounting bracket 12 has a closed cross-sectional structure in the direction of the straight line L that connects the centers of the two fastening points 31 and 32 that are closest to the input point of the pedaling force for the pedal device 10. Strength and rigidity can be increased while reducing weight. For this reason, the intensity | strength and rigidity of the attachment part of the pedal apparatus 10 in a vehicle body can be improved, suppressing the mass increase of a vehicle.

  In the present embodiment, the upper bracket 24 and the lower bracket 26 are integrated in advance before being attached to the vehicle body, so that the ease of assembling the pedal device 10 to the vehicle body is improved.

  As described above, the pedal device mounting structure S according to the present embodiment can suitably ensure the strength reliability, the operation reliability of the kick-down switch, and the feeling of pedal operation, while having a minimum component configuration.

[Other Embodiments]
Although the pedal device 10 has been described as an accelerator pedal device with a kick-down switch, the pedal device 10 is not limited to this, and may be a pedal device such as a brake or a clutch.
The mounting bracket 12 is assumed to have a closed cross-sectional structure in the direction of the straight line L connecting the centers of the two fastening points 31 and 32 closest to the input point of the pedal force for the pedal device 10, but is not necessarily a closed cross-sectional structure. May be. The closed cross section in the direction of the straight line L is not limited to one and may be plural.
Further, although the upper bracket 24 and the lower bracket 26 of the mounting bracket 12 are integrated in advance before mounting to the vehicle body, they are not necessarily integrated.
The collars 62 and 63 can be omitted if unnecessary depending on the shape of the vehicle body such as the dash panel 20. The shape of each part of the mounting bracket 12 can also be appropriately changed according to the shape of the vehicle body.
As mentioned above, although an example of the embodiment of the present invention was explained, the present invention is not limited to the above, and besides the above, it can be implemented with various modifications without departing from the gist thereof. Of course.

10 Pedal device 12 Mounting bracket 20 Dash panel (vehicle body)
24 Upper bracket 26 Lower bracket 31 Fastening point 32 Fastening point 34 Dash cross member (vehicle body)
L Straight line S Pedal device mounting structure

Claims (3)

A pedal device in which the pedal force varies stepwise;
A mounting bracket attached to a vehicle body and having a double structure including an upper bracket located on the pedal device side and a lower bracket located on the vehicle body side;
A mounting structure of a pedal device having The mounting bracket is fixed to the vehicle body at a plurality of fastening points;
2. The pedal device mounting structure according to claim 1, wherein the mounting bracket has a closed cross-sectional structure in a linear direction connecting the centers of the two fastening points closest to the input point of the pedal force for the pedal device.   The pedal device mounting structure according to claim 1, wherein the upper bracket and the lower bracket are integrated in advance before mounting to the vehicle body.

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