JP3762201B2 - Parking brake pedal support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a parking brake pedal support device for an automobile, and more particularly to a parking brake pedal support device capable of reducing an impact when a parking brake pedal hits a passenger's leg at the time of a frontal collision of a vehicle. .
[0002]
[Prior art]
Conventionally, an example of a parking brake pedal support device is disclosed in Japanese Patent Application Laid-Open No. 10-230827. As shown in FIG. 5 of the present application, the device described in this publication is such that a brake bracket 92 is swingably supported by a pedal bracket 91 attached to a dash panel 90, and a boss portion of the brake pedal 92 is provided. 92 a and the sector plate 94 to which the brake cable (control cable) 93 is connected are connected to each other via a spring 95. A push bar 96 is provided behind the spring 95 in the vehicle.
[0003]
In this structure, when the vehicle collides forward and the dash panel 90 and the pedal bracket 91 move to the rear of the vehicle (right side of the drawing), both end portions 95a of the spring 95 abut against the push bar 96, and this abutment action causes the brake to The connection state between the boss portion 92a of the pedal 92 and the sector plate 94 is released. Then, the brake pedal 92 is in a free state not subject to the restraint of the brake cable 93, and even if the tread plate portion 92b hits the occupant's leg portion, the impact at that time can be reduced.
[0004]
[Problems to be solved by the invention]
However, the conventional means has the following problems.
[0005]
First, it is necessary to connect the boss portion 92a of the brake pedal 92 and the sector plate 94 using a spring 95 having a special shape so that the connection between the boss portion 92a and the sector plate 94 is released by contact with the push bar 96. The structure is complicated. Therefore, the manufacturing cost is expensive.
[0006]
Secondly, the push bar 96 needs to be arranged behind the pedal bracket 91 and the height of the tip of the push bar 96 needs to be set substantially the same as the boss 92a of the brake pedal 92. . Further, the push bar 96 needs to have a certain degree of strength, and its thickness needs to be relatively large. Therefore, it is not preferable to provide such a push bar 96 from the viewpoint of securing the space around the brake pedal and reducing the vehicle weight.
[0007]
The present invention has been conceived under such circumstances, and the overall structure can be simplified and reduced, and the brake pedal hits the occupant's leg during a forward collision of the vehicle. It is an object of the present invention to provide a parking brake pedal support device that can reduce the impact at the time.
[0008]
DISCLOSURE OF THE INVENTION
In order to solve the above problems, the present invention takes the following technical means.
[0009]
A parking brake pedal support device provided by the present invention includes a pedal bracket provided at a front portion of a vehicle interior, a brake pedal supported swingably on the pedal bracket, and one end of the brake pedal. a brake cable of linked inner cable and the outer cable for guiding the inner cable, said one end of said outer cable as pulling and unwinding operation of the inner cable is made in accordance with the rocking operation of the brake pedal An outer cable fixing means for fixing the pedal bracket to a fixed position, wherein the outer cable fixing means receives a load input to a front portion of the vehicle at a predetermined value or more. the above Pedarubu of one end of the outer cable at the time was It is characterized by being configured to release the fixed state with respect to packet.
[0010]
In the parking brake pedal supporting device having such a configuration, when the vehicle collides forward and a load input of a predetermined value or more is applied to the front portion of the vehicle, the fixed state of one end of the outer cable is released. Then, the inner cable of the brake cable is in a state in which the brake pedal is not strongly restrained. That is, the pulling and unwinding operation of the inner cable of the brake cable is, in other words, a relative movement operation of the inner cable and the outer cable, and this operation is performed by fixing one end of the outer cable. Is possible. The tension when the inner cable is pulled can be generated because one end of the outer cable is fixed. Therefore, when the fixed state of one end of the outer cable is released, the inner cable no longer restrains the brake pedal with a strong force, and the brake pedal can swing in a free or nearly free state. It will be a thing. As a result, even if the brake pedal hits the occupant's leg, the impact at that time can be reduced.
[0011]
In the present invention, it is necessary to configure so that the fixed state of one end of the outer cable is released when there is a load input of a predetermined value or more at the front portion of the vehicle. A mechanism in which one end of the outer cable is fastened to a part of the outer cable, and the fastened state is released when the pedal bracket is displaced rearward due to a load input to the front of the vehicle. It is possible to adopt. Therefore, according to the invention of the present application, the overall structure is simplified and the manufacturing cost is reduced, compared with a conventional brake pedal boss portion and sector plate connected to each other by using a special spring. be able to. Further, since it is not necessary to provide a large-sized member corresponding to the conventional push bar behind the pedal bracket, it is convenient to secure a space around the brake pedal in front of the driver's seat.
[0012]
In a preferred embodiment of the present invention, the outer cable fixing means is provided in the pedal bracket, at least a part of the pedal bracket is attached to a dash panel, and the outer cable is One end of the outer cable is supported by a cable guide member arranged behind the dash panel when the dash panel and the pedal bracket are displaced rearward of the cable guide member. The outer cable fixing means is configured to be disengaged forward of the vehicle.
[0013]
According to this configuration, when the vehicle collides forward, the dash panel is displaced rearward, and when the pedal bracket is also displaced rearward, the fixed state of one end of the outer cable is released. The Rukoto. Therefore, the operation intended by the present invention can be appropriately obtained with a simple structure.
[0014]
In another preferred embodiment of the present invention, the cable guide member is a tubular body in which the brake cable is routed, and the tubular body is attached to the floor.
[0015]
According to such a configuration, during normal times, the outer cable of the brake cable can be appropriately supported at a predetermined position by the tubular body, and the fixed state of one end of the outer cable is inadvertently It can be prevented from being released. On the other hand, the floor to which the tubular body is attached is a portion that is less deformed or displaced in the event of a vehicle collision than the dash panel. Therefore, when the vehicle collides forward, the pedal bracket for the tubular body The relative displacement amount can be increased. For this reason, the relative movement amount between the one end of the outer cable and the outer cable fixing means can be increased, and the operation of releasing one end of the outer cable from the outer cable fixing means when the vehicle collides forward is ensured. Can increase the sex.
[0016]
Other features and advantages of the present invention will become more apparent from the following description of embodiments of the invention.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be specifically described with reference to the drawings.
[0018]
1 to 4 show an embodiment of the present invention. In these drawings, the arrow Fr indicates the front of the vehicle, the arrow Up indicates the upper side in the vehicle height direction, and the arrow W indicates the vehicle width direction.
[0019]
The parking brake pedal support device of the present embodiment includes a pedal bracket 1, a brake pedal 2, a pipe body 4 that guides the brake cable 3, and an outer cable fixing portion 5.
[0020]
The pedal bracket 1 is formed by pressing a metal plate or the like, and an upper part 10a and a lower part 10b are attached to the cowl 60 and the dash panel 61 via bolts 70a and 70b. The dash panel 61 is a panel that partitions the vehicle compartment 62 and the engine room in front of the vehicle compartment 62, and the pedal bracket 1 is arranged in the vehicle compartment 62.
[0021]
The brake pedal 2 is swingable in the vehicle front-rear direction around the shaft 20 by being supported by hanging on the shaft 20 attached to the pedal bracket 1. Although not shown in the drawing, the supporting device maintains the depressed state of the brake pedal 2 when the parking brake is applied by depressing the tread plate portion 21 of the brake pedal 2, and if necessary, A mechanism capable of releasing the depressed state is also provided.
[0022]
The tubular body 4 is made of a relatively hard material such as metal, and the brake cable 3 is inserted into the tubular body 4 so that the brake cable 3 is guided and protected. The tubular body 4 is fixed to the upper surface portion of the floor panel 63 constituting the floor of the passenger compartment 62 using an appropriate metal fitting 64. One end portion 40 of the tubular body 4 is formed in a curved shape rising above the floor panel 63 below the pedal bracket 1. A gap with an appropriate dimension L is provided between the one end 40 and the dash panel 61.
[0023]
The brake cable 3 is a combination of a tubular outer cable 30 and an inner cable 31 as a wire inserted through the outer cable 30. The brake cable 3 is guided by the pipe body 4 in the passenger compartment 62, but another part of the brake cable 3 (not shown) extends outside the passenger compartment 62 and is routed. It is connected to a predetermined operating part of the apparatus. One end portion of the brake cable 3 in the passenger compartment 62 protrudes upward from the one end portion 40 of the tube body 4, and one end of the inner cable 31 is fixed to the upper portion of the brake pedal 2 via the nipple 31 a. Has been.
[0024]
The outer cable fixing portion 5 is configured, for example, by forming a notch recess 51 through which the inner cable 31 passes in a horizontal plate portion 50 provided in the pedal bracket 1. The notch recess 51 has a shape in which the front side of the vehicle is opened, as shown well in FIG. One end of the outer cable 30 is fixed to the outer cable fixing portion 5. As the fixing means, for example, the outer stopper member 33 attached to one end of the outer cable 30 is brought into contact with the lower surface of the horizontal plate portion 50, and the distal end portion 33a of the outer stopper member 33 is fitted into the notch recess 51. It is possible to use means for The fixing of one end of the outer cable 30 referred to in the present invention means that when the inner cable 31 is pulled in a certain direction by the operation of the brake pedal 2 or is fed out in the opposite direction, the outer cable 30 and the inner cable 31 together with the inner cable 31 are pulled out. This means that one end of the outer cable 30 is held at a fixed position so that the 30 does not move, and it is not always necessary to be mechanically connected to the outer cable fixing means. Therefore, in the present invention, various means other than the above can be applied as means for fixing the outer cable 30. However, the fixing of one end of the outer cable 30 is released when the horizontal plate portion 50 of the outer cable fixing portion 5 moves relative to the one end of the outer cable 30 relative to one end of the outer cable 30 as will be described later. Yes.
[0025]
Next, the operation of the parking brake pedal support device having the above-described configuration will be described.
[0026]
First, since the one end of the outer cable 30 is fixed to the outer cable fixing portion 5 in the normal time of the vehicle, the outer cable 30 and the inner cable 31 can be appropriately moved relative to each other, and the brake pedal 2 is depressed. By the operation and its release operation, the inner cable 3 can be appropriately pulled and fed out. The tubular body 4 serves to prevent one end of the brake cable 3 from being inadvertently pushed forward of the vehicle. Therefore, one end of the outer cable 30 can be prevented from being inadvertently detached from the outer cable fixing portion 5 toward the front side of the vehicle. Since the tubular body 4 crawls on the floor panel 63, the tubular body 4 is not greatly bulky in the passenger compartment 62. Moreover, since the one end part 40 of the tubular body 4 stands up below the pedal bracket 1 and is positioned in front of the vehicle with respect to the brake pedal 2, the rising part gives a feeling of bulk to the occupant. Nor.
[0027]
Next, when the vehicle collides forward, as shown in FIG. 3, when a large load F exceeding a predetermined value is input to the front of the vehicle, the dash panel 61 is deformed or displaced rearward of the vehicle. Then, the pedal bracket 1 is also displaced toward the rear of the vehicle, and the horizontal plate portion 50 of the outer cable fixing portion 5 is similarly displaced toward the rear of the vehicle.
[0028]
On the other hand, since the outer cable 30 is guided by the pipe body 4 except for the vicinity of one end thereof, even if the horizontal plate portion 50 is displaced to the rear of the vehicle, the outer cable 30 is greatly displaced to the rear of the vehicle. There is no. Further, since the tube body 4 is provided on the floor panel 63 which is not easily affected by the displacement or deformation of the dash panel 61, the tube body 4 is not immediately displaced rearward in the event of a vehicle collision. Furthermore, since a gap having an appropriate dimension is provided in advance between the one end portion 40 of the tube body 4 and the dash panel 61, even if the dash panel 61 is displaced rearward of the vehicle, one end portion of the tube body 4 is provided. 40 is not immediately pushed backward by the dash panel 61, and one end of the outer cable 30 can be prevented from being greatly displaced rearward. Accordingly, the horizontal plate portion 50 of the outer cable fixing portion 5 is greatly displaced toward the rear of the vehicle relative to one end of the outer cable 30, and the outer stopper member 33 escapes forward from the opening of the notch recess 51 ( 4), the fixed state of the outer cable 30 is released.
[0029]
When the outer cable 30 is released from the fixed state, the tension state of the inner cable 31 is lost and the brake pedal 2 is not subjected to a large restraining force by the inner cable 31. Therefore, even if the tread plate portion 21 of the brake pedal 2 comes into contact with the occupant's legs as the pedal bracket 1 moves backward, the impact at that time can be reduced.
[0030]
As described above, the parking brake pedal support device releases an impact when the brake pedal 2 comes into contact with the occupant's leg by releasing the fixed state of one end of the outer cable 30 at the time of a frontal collision of the vehicle. Although it can be made small, the structure of the outer cable fixing portion 5 that fixes one end of the outer cable 30 is a simple structure as described above. Therefore, the manufacturing cost of the device can be reduced. Further, unlike the one described in Japanese Patent Laid-Open No. 10-230827 described as the prior art, there is no need to provide a large member (a member corresponding to a push bar) behind the pedal bracket 1 in the vehicle interior 62. It is also convenient to secure a large space in front of the driver's seat.
[0031]
The specific configuration of each part of the parking brake pedal support device according to the present invention is not limited to the above-described embodiment, and various design changes can be made.
[0032]
For example, the means for releasing the fixed state of one end of the outer cable when there is a predetermined value or more load input to the vehicle both front is not limited to the means for utilizing the backward movement of the dash panel and the pedal bracket Any other means may be used.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention.
2 is a cross-sectional view taken along the line II-II in FIG.
FIG. 3 is an explanatory diagram showing the operation of the structure shown in FIG. 1;
4 is a cross-sectional view taken along the line IV-IV in FIG. 3;
FIG. 5 is a side view showing an example of a conventional technique.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pedal bracket 2 Brake pedal 3 Brake cable 4 Tubing 5 Outer cable fixing | fixed part 30 Outer cable 31 Inner cable 61 Dash panel 62 Car compartment

Claims (3)

Pedal bracket provided at the front of the passenger compartment, a brake pedal supported swingably on the pedal bracket, an inner cable having one end connected to the brake pedal, and an outer cable that guides the inner cable A brake cable comprising: an outer cable fixing means for fixing one end of the outer cable to a fixed position of the pedal bracket so that the inner cable is pulled and pulled out in accordance with the swinging operation of the brake pedal; A parking brake pedal support device comprising:
The outer cable fixing means is configured to release a fixed state of one end of the outer cable with respect to the pedal bracket when a load input of a predetermined value or more is input to the front portion of the vehicle. Parking brake pedal support device. The outer cable fixing means is provided on the pedal bracket, and at least a part of the pedal bracket is attached to the dash panel, and the outer cable is arranged behind the dash panel. Supported by a cable guide member,
The one end of the outer cable is configured to be disengaged from the outer cable fixing means to the front of the vehicle when the dash panel and the pedal bracket are displaced rearward of the vehicle relative to the cable guide member. The parking brake pedal support device according to claim 1. 3. The parking brake pedal support device according to claim 2, wherein the cable guide member is a tubular body in which the brake cable is routed, and the tubular body is attached to a floor.

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