JP4014929B2 - Pedal retraction control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pedal retraction amount suppressing device for a traveling vehicle.
[0002]
[Prior art]
For example, Japanese Patent No. 3329790 discloses a pedal retraction amount suppressing device for a traveling vehicle that suppresses the pedal from moving backward in the vehicle body and moving toward the occupant when the vehicle collides forward. In the device disclosed in this publication, when the vehicle body is deformed at the time of a forward collision of the vehicle and the pedal moves to the rear of the vehicle body as a whole, the steering support provided on the support member that connects the pillars to the pillars is below the pivot of this pedal. The rearward movement of the vehicle body is restricted, and as a result, the pedal is rotated so that the tread surface side moves forward of the vehicle body and is moved from the passenger compartment to the front of the vehicle body.
[0003]
[Problems to be solved by the invention]
By the way, in the above case, since the vehicle body is deformed at the time of a collision and the pedal moves to the rear of the vehicle body relative to the steering support, the pedal can be stably used depending on the deformation mode of the vehicle body such as the dash lower panel. There is a problem that the vehicle cannot be moved from the passenger compartment to the front of the vehicle body.
[0004]
In addition, it is necessary to connect the corresponding components of the vehicle body. However, since the layout around the pedal is very limited, such connection is difficult and difficult to realize.
In addition, in order to restrict the movement of the pedal by the steering support as described above, the steering support must be shaped according to the position of the pedal, which causes a problem in design.
[0005]
Therefore, an object of the present invention is to provide a pedal retraction amount suppressing device that can stably move the pedal from the passenger compartment to the front of the vehicle body and has a high degree of design freedom.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the pedal retraction amount suppression device according to claim 1 of the present invention is fixed at an initial position away from the pedal (for example, the pedal 12 in the embodiment) during normal braking of the vehicle. is characterized by having a (weight 22 in example embodiments) pressed weights rotating in front of the vehicle body by the pedal by moving the vehicle body forward by inertia force generated during the forward collision of the vehicle.
[0007]
Thus, the weight at the time of normal braking of the vehicle which is fixed to an initial position away from the pedal is moved forward vehicle body by the inertial force generated at the time of frontal collision of the vehicle turning to the front of the vehicle body by pressing the pedal And move it forward from the passenger compartment. In this way, the vehicle is fixed at an initial position away from the pedal during normal braking of the vehicle, and the pedal is moved forward by the weight that moves due to the inertial force generated at the time of forward collision of the vehicle. Regardless of the mode of deformation, the pedal can be moved from the passenger compartment to the front of the vehicle body, and it is not necessary to connect the pedal to other parts of the vehicle body.
[0008]
According to a second aspect of the present invention, there is provided a return restricting portion for restricting the return of the weight to the rear of the vehicle in a state where the pedal is rotated forward of the vehicle. For example, it is characterized by having a recess 28) in the embodiment.
[0009]
In this way, since the return restricting part restricts the return of the pedal by restricting the return of the weight to the rear of the vehicle body, the rotation of the pedal during normal use is limited as in the case of directly restricting the return of the pedal. There is no need to consider switching.
[0010]
The pedal retraction amount suppression device according to claim 3 of the present invention relates to the pedal retraction amount suppression device according to claim 1 or 2, wherein the both-side arrangement member (for example, the retainer 21 in the embodiment) disposed on both the left and right sides of the pedal. Long holes (for example, long holes 27 in the embodiment) that are long in the longitudinal direction of the vehicle body are provided on the left and right sides of the pedal, respectively, and the weights are passed over the long holes so that the movement of the weights to the front of the vehicle body is performed. It is characterized by guiding through a long hole.
[0011]
As a result, when the vehicle moves forward due to the inertial force generated at the time of the frontal collision of the vehicle, the weight is guided by the long oblong holes arranged in the left and right sides of the pedal in the longitudinal direction of the vehicle so that the pedal is surely pushed forward of the vehicle. Move.
[0012]
According to a fourth aspect of the present invention, there is provided a pedal retraction amount suppressing device according to the third aspect, wherein a concave portion (for example, a concave portion 28 in the embodiment) is formed by denting the elongated hole downward from the front side of the vehicle body. And a return restricting portion for restricting the return of the weight to the rear of the vehicle in a state in which the pedal is rotated forward of the vehicle is formed by the concave portion.
[0013]
As a result, the weight that is moved forward of the vehicle and rotated by the pedal while being guided by the long hole due to the inertia force generated at the time of the frontal collision of the vehicle falls into the concave portion recessed downward from the front side of the long hole to the vehicle body. The return to the rear is restricted, and as a result, the return of the pedal is restricted.
[0014]
According to a fifth aspect of the present invention, in the pedal retraction amount suppression device according to the fourth aspect, the both-side arrangement members are a pair of brackets that are attached to the vehicle body side and support the left and right sides of the pivot of the pedal. There, is characterized in that the elongated hole and said recess is formed in the bracket prior Symbol a pair.
[0015]
In this way, the bracket serves also as a weight guide and a return restricting portion, and the number of parts can be reduced.
[0016]
Pedal retraction amount control apparatus according to claim 6 of the present invention, with respect to those of any one of claims 1 to 5, the vehicle body front of the weight by the inertial force to fix the weight to the initial position The movement restriction member (for example, the movement restriction member 30 in the embodiment) that allows the movement of the movement is provided.
[0017]
As a result, the movement restricting member normally fixes the weight at the initial position to eliminate the influence of the weight on the pedal, and moves the weight forward of the vehicle body and rotates it forward of the vehicle body in the event of a collision.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
A pedal retraction amount suppressing device according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows a pedal assembly 11 including a pedal retraction amount suppression device 10 of the present embodiment. The pedal assembly 11 is arranged on both sides of the pedal 12 and the pedal 12 in the left-right direction of the vehicle body so as to rotate the pedal 12. And a pair of brackets 13 that are movably supported. The pedal 12 is connected to a push rod or the like for operating the operating device by transmitting the rotation, but the details are omitted for the sake of illustration. In FIG. 1, front, rear, left and right of the vehicle body are indicated by arrows.
[0019]
The pedal 12 is specifically a clutch pedal, and has a pivot 15 having an axis line in the left-right direction of the vehicle body on one end side, and a tread surface portion 16 that is depressed by a driver is provided on the other end side. Yes.
[0020]
Each of the pair of brackets 13 includes a support plate portion 18 that supports the pivot 15 of the pedal 12 in a state orthogonal to the axis thereof, and a mounting plate portion 19 orthogonal to the support plate portion 18. 19, a dash lower panel is attached to the passenger compartment side of the dash lower panel, that is, the rear side of the vehicle body.
[0021]
The pedal 12 is supported by the pair of brackets 13 with the pivot 15 on the upper side and the tread surface 16 on the lower side, and the tread surface 16 facing the passenger compartment.
[0022]
The pedal retraction amount suppression device 10 includes a retainer 21 attached to the rear side of the vehicle body of the bracket 13 and a weight 22 supported by the retainer 21.
[0023]
The retainer 21 includes a pair of attachment plate portions 24 that are respectively attached in parallel to the outside of the support plate portion 18 of the pair of brackets 13, and a connection that connects opposite sides of the attachment plate portions 24 to the bracket 13. The plate portion 25 and a pair of extended plate portions 26 extending rearward from the lower body of each mounting plate portion 24 are integrally formed.
[0024]
A long hole 27 that is long in the longitudinal direction of the vehicle body is formed in the extending plate portion 26 so as to match the positions of the longitudinal direction and the vertical direction of the vehicle body. A recessed portion 28 that is recessed is formed so as to match the positions in the longitudinal direction and the vertical direction of the vehicle body.
[0025]
As a result, these long holes 27 are arranged on both the left and right sides of the pedal 12, but there is no input to the tread portion 16, and the upper and lower sides of the pedal 12 located most on the passenger compartment side, that is, the rear side of the vehicle body by reaction force. It extends a predetermined length to the rear side of the vehicle body from the portion where the long hole 27 is aligned in the direction. In addition, the portion of the long hole 27 on the vehicle body front side and the concave portion 28 are located on the portion of the vehicle body that is aligned with the long hole 27 in the vertical direction of the pedal 12 in the full stroke state located on the opposite side to the passenger compartment, that is, the vehicle body front side. Located on the back side.
[0026]
A substantially cylindrical weight 22 is inserted on the rear side of the vehicle body from the pedal 12 of the long hole 27 so as to be spanned by the long holes 27. The weight 22 is moved forward by the inertial force generated when the vehicle collides forward, thereby pressing the lower side of the pedal 15 below the pivot 15 toward the front of the vehicle and turning the pedal 12 forward of the vehicle. During such movement, the weight 22 is guided by the elongated holes 27 on the left and right sides and moves forward, and is dropped into the recess 28 by the reaction force and gravity from the pedal 12 near the moving end. That is, these recesses 28 constitute a return restricting portion that restricts the return of the weight 22 in the state where the pedal 12 is rotated forward of the vehicle body and restricts the return due to the reaction force of the pedal 12. Here, although not shown in the drawing, the weight 22 is formed with a flange or the like, so that the movement of the retainer 21 in the left-right direction of the vehicle body is restricted, and the weights 22 are prevented from coming off from the long holes 27 and the concave portions 28. Yes.
[0027]
The weight of the weight 22 is set to a weight that allows the pedal 12 to make a full stroke using the inertial force generated at the time of a frontal collision of the vehicle. For example, the pedal 12 is a clutch pedal, the work amount for making the pedal 12 full stroke is about 19 N · m, and the speed of the weight 22 after running, for example, 35 mm until it abuts against the pedal 12 when the vehicle collides forward. Is about 25 km / h, the weight of the weight 22 required is 80 g or more. For example, the weight of a steel bar having a diameter of 20 mm and a length of 70 mm is 86 g. become.
[0028]
A movement restricting member 30 that prevents the weight 22 from rattling and restricts the movement of the weight 22 forward of the vehicle body during normal braking of the vehicle is provided at the end of the elongated hole 27 on the vehicle body rear side. . The movement restricting member 30 is generated in the weight 22 at the time of a frontal collision of the vehicle, which does not move the weight 22 at the initial position by the inertia force generated in the weight 22 during normal braking, and does not move the weight 22 in the initial position. The inertia force allows the weight 22 to move forward of the vehicle body. For example, as shown in FIG. 2, the movement restricting member 30 is made of a deformable resin or the like, and is not deformed by the force received from the weight 22 during normal braking, but is deformed by the force received from the weight 22 during a frontal collision of the vehicle. The weight 22 can be moved.
[0029]
As shown in FIG. 3, the movement restricting member 30 is made of a deformable metal plate or the like, and is not deformed by the force received from the weight 22 during normal braking, but is deformed by the force received from the weight 22 during a frontal collision of the vehicle. As shown in FIG. 4, the spring member is made of resin or the like, and the weight 22 and the retainer 21 are connected to each other so that the weight 22 is not sheared by the force received from the weight 22 during normal braking. It is also possible to use a pin or the like that is sheared by the force received from the weight 22 at the time of a forward collision and enables the weight 22 to move.
[0030]
In the pedal retraction amount suppression device 10 of the present embodiment described above, even when force is applied to the weight 22 by braking during normal traveling, the movement of the weight 22 is restricted by the movement restricting member 30, and the pedal 22 No further influence on the operation of the pedal 12 because it is further away from the rear of the vehicle.
[0031]
On the other hand, at the time of a frontal collision of the vehicle, a large inertia force is generated in the weight 22, and the weight 22 moves from the state indicated by the solid line in FIG. Moving. Then, as shown by a two-dot chain line in FIG. 5, the weight 22 is in contact with the lower side of the pivot 15 of the pedal 12, that is, the tread surface 16 side and presses this forward to rotate the vehicle forward about the pivot 15. Let That is, the tread surface 16 side of the pedal 12 is moved from the passenger compartment to the front of the vehicle body.
[0032]
When the weight 22 moves to a position where the pedal 12 is almost fully stroked, as shown in FIG. 6, the weight 22 falls into the recessed portion 28 that is recessed downward by the reaction force and gravity from the pedal 12, and the rear side of the vehicle body in the elongated hole 27. Returning to is regulated. Then, even if the pedal 12 tries to return to the rear of the vehicle body, that is, the passenger compartment side by the reaction force, it cannot return. That is, the pedal 12 is maintained in a state of being moved from the passenger compartment to the front of the vehicle body even after a vehicle collision.
[0033]
According to the pedal retraction amount suppressing device 10 of the present embodiment described above, the weight 22 moves forward of the vehicle body by the inertia force generated at the time of the vehicle forward collision and presses the lower side of the pivot 15 of the pedal 12 forward of the vehicle body. The pedal 12 is rotated forward of the vehicle body and moved from the passenger compartment to the front of the vehicle body. In this way, since the pedal 12 is pressed by the weight 22 that moves by inertial force, the pedal 12 can be moved from the passenger compartment to the front of the vehicle regardless of the deformation of the vehicle body such as the dash lower panel. Since it is not necessary to restrict the movement of the pedal 12 by the steering support, the design constraint is reduced. Therefore, the pedal 12 can be stably moved from the passenger compartment to the front of the vehicle body, and the degree of freedom in design can be increased.
[0034]
Further, when moving forward due to the inertial force generated at the time of a frontal collision of the vehicle, the weights 22 are guided by the long holes 27 disposed in the left and right sides of the pedal 12 in the longitudinal direction of the vehicle body so as to be surely forward of the vehicle body. Press the pedal 12. Therefore, the pedal 12 can be moved more reliably from the passenger compartment to the front of the vehicle body.
[0035]
Further, the weight 22 that is moved forward of the vehicle body and is rotated by the pedal 12 while being guided by the elongated hole 27 by the inertia force generated at the time of a frontal collision of the vehicle, is a recessed portion 28 that is recessed downward from the front side of the elongated hole 27 on the vehicle body. The return to the rear of the vehicle body is restricted. As described above, the recess 28 restricts the return of the pedal 12 by restricting the return of the weight 22 to the rear of the vehicle body. Therefore, as in the case of directly restricting the return of the pedal 12, the pedal 12 during normal use is controlled. There is no need to consider switching with rotation. Therefore, the return of the pedal 12 can be regulated with a simple structure. Moreover, since it is only necessary to form the recess 28, the return of the weight 22 can be regulated with a simpler configuration, and the cost can be further reduced.
[0036]
In the above description, the case where the retainer 21 different from the pair of brackets 13 supporting the left and right sides of the pivot 15 is used as an example. However, the long hole 27 and the recess 28 may be formed in the bracket 13. If comprised in this way, the bracket 13 will serve as the guide of the weight 22, and a return control part, and can reduce a number of parts. Therefore, the cost can be further reduced.
[0037]
In the above description, the case where the weight 22 moves downward in the vehicle body and contacts the lower side of the pivot 15 of the pedal 12 and directly presses the weight 22 is described as an example. If the pedal 12 can be turned forward by moving the vehicle forward, the pedal 12 is indirectly pressed by the weight 22 or the upper side of the pedal 12 is pivoted by the weight 22. Is possible. For example, as shown in FIG. 7, a swing arm 33 is provided above the pedal 12 and is above the pivot 15 of the pedal 12 and swings about the swing shaft 32. On the other hand, the weight 22, the long hole 27, the recess 28, and the movement restricting member 30 (not shown in FIG. 7) may be provided. With this configuration, as indicated by a two-dot chain line in FIG. 7, the weight 22 moves to the front of the vehicle body by the inertial force beyond the movement restricting member 30 and makes contact with the upper portion of the swing arm 33 when the vehicle collides forward. When this is pressed forward of the vehicle body, as shown in FIG. 8, the lower part of the swing arm 33 moves rearward of the vehicle body and comes into contact with the upper part of the pivot 15 of the pedal 12 to press it backward. As a result, the pedal 12 moves to the front of the vehicle body. Also in this case, the weight 22 enters the recess 28 on the front side of the movement, and the return is restricted.
[0038]
In addition, in the above description, the pedal retraction amount suppression device 10 that moves the clutch pedal forward as the vehicle body is described as an example of the pedal 12. However, if the pedal 12 is replaced with a brake pedal instead of a clutch pedal, a brake pedal is used. The reverse amount suppression device 10 can be obtained.
[0039]
【The invention's effect】
As described above in detail, according to the pedal retraction amount suppressing device according to the first aspect of the present invention, the weight fixed at the initial position away from the pedal is generated at the time of a forward collision of the vehicle during normal braking of the vehicle. is rotated in the vehicle front is moved forward from the passenger compartment to press the moving pedal forward vehicle body by the inertial force. In this way, the vehicle is fixed at an initial position away from the pedal during normal braking of the vehicle, and the pedal is moved forward by the weight that moves due to the inertial force generated at the time of forward collision of the vehicle. Regardless of the mode of deformation, the pedal can be moved from the passenger compartment to the front of the vehicle body, and it is not necessary to connect the pedal to other parts of the vehicle body. Therefore, the pedal can be stably moved from the passenger compartment to the front of the vehicle body, and the degree of freedom in design can be increased.
[0040]
According to the pedal retraction amount suppressing device of the second aspect of the present invention, the return restricting portion restricts the return of the pedal by restricting the return of the weight to the rear of the vehicle body, so that the return of the pedal is directly restricted. As in the case, it is not necessary to consider switching with the rotation of the pedal during normal use. Therefore, it is possible to regulate the return of the pedal with a simple structure.
[0041]
According to the pedal retraction amount control device of the third aspect of the present invention, when the vehicle moves forward by the inertial force generated at the time of the frontal collision of the vehicle, the weights are arranged in the vehicle front-rear direction arranged on the left and right sides of the pedal. It is guided by a long long hole and presses the pedal in front of the vehicle. Therefore, the pedal can be moved more reliably from the passenger compartment to the front of the vehicle body.
[0042]
According to the pedal retraction amount control device of the fourth aspect of the present invention, the weight that is moved forward of the vehicle body and rotated by the pedal while being guided by the elongated hole by the inertia force generated at the time of the frontal collision of the vehicle is the elongated hole. It falls into a recess recessed downward from the front side of the vehicle body, and the return to the rear of the vehicle body is restricted. As a result, the return of the pedal is restricted. Since the weight return can be regulated with such a simple configuration, the cost can be reduced.
[0043]
According to the pedal retraction amount suppressing device of the fifth aspect of the present invention, the bracket serves as both the weight guide and the return regulating portion, and the number of parts can be reduced. Therefore, the cost can be further reduced.
[0044]
According to the pedal retraction amount suppressing device according to the sixth aspect of the present invention, the movement restricting member normally fixes the weight at the initial position to eliminate the influence of the weight on the pedal, while reducing the weight at the time of the collision. Move the vehicle forward and rotate it forward. Therefore, the influence of the weight can be eliminated except during the collision.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a pedal assembly including a pedal retraction amount suppressing device according to an embodiment of the present invention.
FIG. 2 is a side view showing a movement restricting member of the pedal retraction amount suppressing device according to the embodiment of the present invention.
FIG. 3 is a side view showing another example of the movement restricting member of the pedal retraction amount suppressing device according to the embodiment of the present invention.
FIG. 4 is a side view showing still another example of the movement restricting member of the pedal retraction amount suppressing device according to the embodiment of the present invention.
FIG. 5 is a side view schematically showing a pedal retraction amount suppressing device according to an embodiment of the present invention, in which a weight at an initial position is indicated by a solid line, and a weight state at the time of a vehicle forward collision is indicated by a two-dot chain line; Is.
FIG. 6 is a side view schematically showing a pedal retraction amount suppressing device according to an embodiment of the present invention, and showing a final weight state at the time of a vehicle front collision.
FIG. 7 is a side view schematically showing a modification of the pedal retraction amount suppressing device of one embodiment of the present invention, in which the weight at the initial position is shown by a solid line, and the weight state at the time of a vehicle front collision is two points This is indicated by a chain line.
FIG. 8 is a side view schematically showing a modified example of the pedal retraction amount suppressing device of one embodiment of the present invention, and showing a state of a final weight at the time of a vehicle frontal collision.
[Explanation of symbols]
12 Pedal 13 Bracket 15 Pivot 22 Weight 27 Long hole 28 Recess (Return restricting part)
30 Movement restriction member

Claims (6)

During normal braking of the vehicle is fixed to an initial position away from the pedal, it has a weight which rotates in front of the vehicle body by pressing the pedal by moving the vehicle body forward by inertia force generated at the time of frontal collision of the vehicle A device for suppressing the amount of backward movement of the pedal.   The pedal retraction amount suppression device according to claim 1, further comprising a return restricting portion for restricting the return of the weight in a state in which the pedal is rotated forward of the vehicle body to the vehicle body rear side. Long side holes in the longitudinal direction of the vehicle body are respectively provided on the left and right sides of the pedal in both side arrangement members provided on the left and right sides of the pedal, and the weights are passed through the long holes, so that the vehicle body of the weight is provided. The pedal backward movement suppression device according to claim 1 or 2, wherein forward movement is guided by the elongated hole.   Forming a recess into which the weight is dropped from the front side of the oblong body of the oblong hole, and restricting the return of the weight to the rear of the vehicle when the pedal is rotated forward of the vehicle 4. The pedal retraction amount suppression device according to claim 3, wherein the pedal retraction amount suppression device is constituted by a concave portion. The two side mounting member is a pair of brackets mounted on the vehicle body for supporting the left and right sides of the pivot of the pedal, characterized in that the elongated hole and said recess is formed in the bracket prior Symbol a pair The pedal retraction amount suppression device according to claim 4. Claims 1 to 5 pedal according to any one claim of, characterized in that it includes a movement restricting member which allows movement of the vehicle body forward of the weight by the inertial force to fix the weight to the initial position Retreat amount control device.

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