KR100936526B1 - Break apparatus in car for preventing injury - Google Patents

Abstract

The present invention relates to a brake device for an automobile for preventing injury, and more particularly, a bracket coupled to a dash panel; A pedal arm provided at one side, the pedal arm rotatably installed at the other side so that the pedal can move in a direction approaching the driver's leg or away from the driver's leg; And hinged to the bracket to rotate in one direction contactable with the upper end of the pedal arm or in another direction spaced apart from the upper end of the pedal arm, and from the driver's leg in contact with the upper end of the pedal arm while rotating in the one direction. It relates to a brake device for a vehicle comprising; a reverse rotation means for rotating the pedal arm to move away.

Bracket, Pedal Arm, Reverse Rotation Means

Description

Break apparatus in car for preventing injury

The present invention relates to an automobile brake device for preventing injuries, and more particularly, to an automobile brake device for preventing a driver's leg from being injured due to the brake being pushed when a crash occurs.

The brake device is operated when the driver wants to reduce the speed of the vehicle while driving the vehicle, and is installed to step on the inside of the dash panel. However, in the case of a general automobile brake device, when the front collision of the vehicle pushes the engine and the transmission rearward, the brake booster and the operating rod connected with the brake booster push the brake pedal into the room, and the rake pedal strikes the driver's leg. Injury has a problem that is caused.

In order to solve this problem, various technologies have been introduced to prevent the pedal arm from being pushed into the vehicle when a front collision of the vehicle occurs. As an example, Korean Patent No. 10-657586 discloses the brake device 100 shown in FIG. 1 includes a first bracket 110 fixed to a cowl; A second bracket 120 coupled to the first bracket 110 and the master bag opposite the dash panel 160; A brake pedal arm 130 connected to the push rod 150 connected to the master bag and rotatably installed on the second bracket 120; A hinge preventing means coupled to the second bracket 120 through a pipe hinge 143 and rotating the brake pedal arm 130 in a predetermined direction and having a first arm 141 and a second arm 142 ( 140); And a first support bracket 144 and a second support bracket 145 which are hinged through pipe hinges 143 on both sides of the brake pedal arm 130. 2 and 3, when a frontal collision occurs while driving a vehicle, an impact force is transmitted to the second bracket 120 and the push rod 150, and the second bracket 120 The hinge preventing means 140, which is hinged, is also pushed into the vehicle due to the impact force transmitted from the second bracket 120 such that the first arm 141 is in contact with the first bracket 110. At this time, the second arm 142 collides with the brake pedal arm 130 due to the rotation of the slide preventing means 140, and thus the brake pedal arm 130 rotates in a direction away from the driver. 130 is pushed into the vehicle to prevent the driver's leg from being injured.

This prior art brake device has the following problems.

First, a conventional brake device having a complicated structure has a problem that it is not only expensive to manufacture, but also has a lot of fixed concerns and it is difficult to easily install in a general brake device.

Secondly, when the pedal is pressed by the foot in the normal operation, the pedal arm and the anti-slip means form a pair to rotate around the pipe hinge to stop the vehicle accordingly. However, in this case, there is a problem in that the pedal arm is structurally weak compared to the case in which the pipe hinge is directly rotated about the central axis. That is, when the driver presses the pedal strongly, the pedal arm and the milling prevention means may be separated from each other or the connection part may be broken. In order to prevent this, it is also conceivable to increase the thickness or increase the width of the connection portion between each other, but this is not preferable by increasing the overall material cost.

Third, there are general design criteria regarding the position of the push rod in the design process. The design criteria define the distance from the pipe arm of the pedal arm to the push rod. However, these prior arts sometimes have difficulty in meeting respective design criteria. That is, when the push rod is moved to the upper side of the pedal arm in order to meet a predetermined design criterion in the prior art, it is too close to the connection between the pedal arm and the milling prevention means, causing excessive stress concentration on the connection. There is concern. That is, when the pedal is pressed to brake the vehicle, when the push rod is positioned too close to the connection portion between the pedal arm and the milling prevention means, a large stress concentration occurs at the connection portion, which may cause the connection portion to be destroyed. Therefore, there is a problem in that the push rod cannot be coupled to a pedal arm above a certain height.

The present invention was created in order to solve the above-described problems, structurally stable and freely change the position of the push rod in accordance with various design standards, and prevents injuries that can sufficiently protect the driver's leg during the front of the car. An object of the present invention is to provide a brake device for an automobile.

Automotive brake device for preventing injury of the present invention for solving the above technical problem, the bracket coupled to the dash panel; A pedal arm provided at a lower side thereof, the pedal arm being rotatably installed on the other side of the bracket by a hollow pin so that the pedal can move in a direction approaching the user's leg or away from the user's leg; And hinged to the bracket to rotate in one direction contactable with the upper end of the pedal arm or in another direction spaced apart from the upper end of the pedal arm, from the user's leg as it contacts the upper end of the pedal arm while rotating in one direction. And a reverse rotation means for rotating the pedal arm to move away from the vehicle.
The reverse rotation means,
A pair of side walls disposed to face each other; A back wall connecting the edges of the side walls; A first hinge pin hinged to the side wall and the bracket; And a pressing member fixedly connected to the pair of side walls.
At the upper end of the pedal arm,
And a guide surface for guiding the pressing member of the reverse rotation means when the reverse rotation means rotates in one direction so that the pedal arm rotates in association with the reverse rotation means.

In the brake device for a vehicle, one end of which is supported by the hollow pin and the other end of which is supported by the rear wall while the center thereof is fitted to the first hinge pin to elastically support the reverse rotation means in the other direction. It is preferable that a torsion spring is included.

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The brake device for a vehicle for preventing injury of the present invention having the above-described configuration includes a reverse rotation means that rotates separately from the pedal arm, thereby providing structural stability during normal brake operation, and the reverse rotation means is usually It is not used in this case, but only works in a crash, which has the advantage of preventing the pedal arm from slipping.

In addition, since the pedal arm is directly coupled to the rotational axis, even if the position of the push rod is located close to the rotational axis, there is no structural problem, and thus the brake device can be designed according to a desired design standard.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view of the brake device according to the present embodiment, FIG. 5 is a perspective view of FIG. 4, FIG. 6 is a perspective view of the reverse rotation device of FIG. 4, and FIG. 7 is a side cross-sectional view of the brake device of FIG. 4. .

The brake device for a vehicle 10 for preventing injury according to the present embodiment includes a bracket 20, a pedal arm 30, and a reverse rotation means 40.

The bracket 20 includes a first bracket 21 and a second bracket 25.

The first bracket 21 is coupled to the dash panel 90 and the pedal arm 30 is hinged, the first panel portion 22 coupled to the dash panel 90 and the first panel portion ( It consists of the side wall part 23 perpendicular | vertical from both sides of 22). The first panel portion 22 is coupled to the dash panel 90 by bolting, and the pair of side walls 23 have a coupling bolt 33 for hinge coupling with the pedal arm 30. The first bracket hole 24 is formed.

The second bracket 25 is the reverse rotation means 40 is hinged, it is coupled to the first bracket (21). The first bracket 21 has a "c" shape and is fixedly installed on the side wall portion 23 of the first bracket 21. The first bracket 21 is formed with a second bracket hole 26 into which the first hinge pin 46 is inserted for hinge coupling with the reverse rotation means 40.

The pedal arm 30 is provided with a pedal 31 on which the driver's foot can be placed, and the upper side is hinged to the first bracket 21.

Specifically, the hollow pin 34 is inserted into the coupling bolt 33 is inserted into the upper side of the pedal arm 30, the coupling bolt 33 is formed on the side wall portion 23 of the first bracket (21) One bracket hole 24 is supported. When the driver presses the pedal 31 to stop the vehicle, the pedal arm 30 rotates in a predetermined direction, and the pedal arm 30 returns to its original position when the driver removes the force applied to the hollow pin 34. Return springs 32 for restoring are combined. In addition, a pair of bushes 34a are formed at both sides of the hollow pin 34 so that the rotation of the coupling pin is smooth. In addition, a nut 35 and a washer 36 for fixing the coupling bolt 33 to the side wall portion 23 are also provided.

On the upper side of the pedal arm 30, a guide surface 37 and a restoring prevention groove 38 are formed. The guide surface 37 guides the pressing member 45 provided in the reverse rotation means 40 when the reverse rotation means 40 rotates so that the pedal arm 30 is interlocked with the reverse rotation means 40. To rotate. The guide surface 37 is preferably in a curved shape so that the pressing member 45 provided in the reverse rotation means 40 to be rotated smoothly.

The restoration preventing groove 38 is formed on the guide surface 37, and is a groove to which the pressing member 45 of the reverse rotation means 40 can be fitted. As described above, as the reverse rotation means 40 rotates in one direction, the pressing member 45 rotates the pedal arm 30 while contacting the guide surface 37, but after a predetermined time has passed after the crash accident. There is a risk that the pedal arm 30 is returned to its original position again (the details thereof will be described later). As such, when the pedal arm 30 is returned to the original position, the driver's leg may be injured. Occurs. The restoration prevention groove 38 prevents the pedal arm 30 from returning toward the driver's leg again after the pedal arm 30 is separated from the driver's leg in such a manner that a collision occurs. Specifically, the restoring preventing groove 38 is provided on the guide surface 37 so that the position of the pedal arm 30 which has been rotated to some extent is fixed, and the pressing member 45 of the reverse rotation means 40 is The pedal arm 30 rotated in one direction according to the engagement prevention groove 38 is prevented from rotating in the opposite direction (the other direction).

The reverse rotation means 40 is hinged to the second bracket 25, the side wall 41, the back wall 44, the pressing member 45, the first hinge pin 46 and the torsion spring 47 ) Is included.

The side wall 41 is a pair of flat plates arranged to face each other, specifically, has an "L" shape. The side wall 41 is formed with first through holes 42 and 42 and second through holes 43, respectively. The first through holes 42 and 42 are holes through which the first hinge pin 46 penetrates the second bracket 25 and the reverse rotation means 40. The second through hole 43 is a hole through which the pressing member 45 axially supported by the side wall 41 passes.

The rear wall 44 is a wall surface that connects one corner of the side wall 41, respectively. The rear wall 44 is a part which can contact the cross car beam 60 fixed to the vehicle body other than the dash panel 90. When the collision occurs, the rear wall 44 crosses the cross car beam. The reverse rotation means 40 is rotated while being pushed by 60.

The pressing members 45 are inserted into the pair of second through holes 43, respectively, and have a pin shape. The pin-shaped pressing members 45 are inserted into the respective second through holes 43, and the reverse rotating means 40 rotates in one direction about the first hinge pin 46, so that the pressing members ( 45 may be in contact with the top of the pedal arm (30).

The first hinge pin 46 is inserted into the first through hole 42 and the second bracket hole 26 of the second bracket 25, respectively, so that the reverse rotation means 40 is moved to the second bracket 25. Is hinged to. In addition, a torsion spring 47 is installed on an outer circumferential surface of the first hinge pin 46. The torsion spring 47 is supported by the hollow pin 34 at one end thereof, and the other end thereof is supported by the rear wall 44 while its center is fitted to the first hinge pin 46. The torsion spring 47 is installed to elastically support the reverse rotation means 40 in the other direction away from the pedal arm 30, so that the reverse rotation means 40 does not contact the pedal arm 30 before the collision of the vehicle. It serves to prevent.

Reference numerals 50, 60, and 70 not described below refer to the pedal arm stopper, the cross car beam, and the push rod coupling member 70, respectively.

The pedal arm stopper 50 prevents the pedal arm 30 from moving toward the driver's leg over a predetermined range in a normal driving process. The pedal arm stopper 50 is composed of a frame for suppressing the progress of the pedal arm 30 and a sensor fixed to the frame to sense the position of the pedal arm 30.

The cross car beam 60 is fixed to a vehicle body other than a dash panel installed in the vehicle body, and unlike the dash panel 90 which is pushed toward the driver during a collision, the cross car beam 60 is maintained even after the collision occurs. do.

The push rod coupling member 70 couples the pedal arm 30 and the push rod 80.

The brake device for an automobile 10 for preventing injury according to the present embodiment having such a configuration has the following effects.

Before the front collision of the vehicle, as shown in Figure 7, the cross-car beam 60 and the reverse rotation means 40 is spaced apart a certain distance, the pressing member 45 of the reverse rotation means 40 also pedal arm 30 It is spaced apart from the guide surface 37 of the upper end. When the front of the vehicle, as shown in Figure 8 dash panel 90 and the push rod 80 is pushed in, the first bracket 21, the second bracket 25, the pedal arm 30 and The push rod 80 is also pushed inward (toward the driver's leg) of the vehicle. In this case, however, the cross car beam 60 maintains its original position as described above. When the components of the brake device 10 are pushed inward as described above, the reverse rotation means 40 coupled to the second bracket 25 causes the rear wall 44 to be pushed by the cross car beam 60. do. Accordingly, the reverse rotation means 40 is rotated in one direction about the first hinge pin 46. In addition, the pressing member 45 of the reverse rotation means 40 is also rotated in one direction. Accordingly, the pressing member 45 rotates the pedal arm 30 in a direction away from the driver's leg while contacting the guide surface 37 of the pedal arm 30, so that the pedal 31 strikes the driver's leg. To prevent injury. On the other hand, in this process, the pressing member 45 is caught in the restoring prevention groove 38 provided on the guide surface 37, the position of the pressing member 45 is fixed.

After that, when the dash panel 90 is pushed further into the inside of the vehicle, as shown in FIG. 9, the cross car beam 60 pushing the reverse rotation means 40 moves the reverse rotation means 40. Pass through and out of it. At this time, since the pressing member 45 is caught in the restoring prevention groove 38, the reverse rotation means 40 is prevented from rotating in the other direction and moving to the driver side. If the pressing member 45 is not caught in the restoring prevention groove 38, the pedal arm 30 is driven by the restoring force of the torsion spring 47 and the push rod 80 pushing the pedal arm 30 at the rear. Can be moved back toward the driver's leg, and the restoring prevention groove 38 can restrain forward movement of the pedal arm 30 to reliably prevent the driver's leg from being injured.

The brake device for a vehicle according to the present embodiment has the following effects.

First, as a simple structure, it is possible to manufacture a brake device that can prevent the injury of the driver has the effect that the cost can be reduced.

Second, the brake device according to the prior art is a rotational movement in the state in which the pedal arm and the skid prevention means are coupled together during the normal brake operation, whereby the connection portion of the pedal arm and the skid prevention means is structurally weak. There is concern. In contrast, in the present embodiment, the pedal arm is structurally stable as the pedal arm is rotatably connected directly to the first bracket instead of being connected to the first bracket by a separate member.

Third, the brake device according to the prior art has a limit in adjusting the distance from the rotation axis of the pedal arm to the push rod at a predetermined level. That is, when the push rod is too close to the rotary shaft, there is a possibility that a large stress concentration is generated at the connection portion between the pedal arm and the slip prevention means. However, in this embodiment, the pedal arm is directly connected to the rotary shaft, so that the same stress as in the prior art is achieved. There is no concern for concentration, and accordingly, there is an advantage that the position of the push rod can be adjusted according to various design criteria.

Fourth, the brake device according to the present embodiment is provided with a restoring prevention groove so that the pedal arm does not move back toward the driver even when a collision proceeds, as described above.

The brake device for a vehicle according to the present embodiment may be modified as follows.

First, in the above-described embodiment, the pressing member is made of a pin type inserted into the through hole of the side wall, but as shown in FIG. 10, a form of connecting the opposite side wall edge of the corner having the rear wall may be considered. In addition, it may be in the form of a protruding wall or a protruding pin protruding from the inner edge of the side wall so as to contact the guide surface. On the other hand, the restoration prevention groove has a form corresponding to it according to the shape of the pressing member.

In addition, in the above-described embodiment, the pressing member is attached to the second bracket, but the first bracket may further protrude toward the front side, and the pressing member may be installed at the front side of the first bracket. In this case, a separate second bracket is not necessary.

Although the present invention has been described in detail with reference to embodiments and various modifications, the present invention is not necessarily limited to these embodiments and modifications, and various modifications may be made without departing from the spirit of the present invention. Can be.

1 is an exploded perspective view of a brake device according to the prior art.

FIG. 2 is a side view of the brake device of FIG. 1. FIG.

3 is an operation of FIG.

4 is an exploded perspective view of the brake device according to the present embodiment;

5 is a perspective view of the combination of FIG.

6 is a perspective view of the reverse rotation means of FIG.

7 is a side cross-sectional view of the brake device of FIG. 4.

8 and 9 are operational views of FIG.

<Detailed Description of Drawings>

10 ... Brake unit 20 ... Bracket

21 ... 1st bracket 22 ... 1st panel part

23.Side wall part 24.1st bracket hole

25 ... 2nd bracket 26 ... 2nd bracket hole

30.Pedalarm 31 ... Pedal

32 ... Return spring 33 ... Combination bolt

34 Hollow pin 35 Nut

36 Washer 37 Guide

38.Restoration groove 40 ... Reverse rotation means

41 Side wall 42 First through hole

43 ... 2nd through hole 44 ... Back wall

45 Pushing member 46 First hinge pin

47 ... torsion spring 50 ... stopper

60 ... cross car beam 70 ... push rod coupling member

80 ... push rod 90 ... dash panel

Claims (3)

A bracket 20 coupled to the dash panel; A pedal 31 is provided on the lower side, and the other side is provided to the hollow pin 34 on the bracket 20 so that the pedal 31 can move in the direction approaching the user's leg or away from the user's leg. Pedal arm 30 is rotatably installed by; And hinged to the bracket 20 to rotate in one direction that is in contact with the upper end of the pedal arm 30 or in another direction that is spaced apart from the upper end of the pedal arm 30, and rotates in one direction. And a reverse rotation means 40 for rotating the pedal arm 30 so as to move away from the user's leg in contact with the top of the 30. The reverse rotation means 40, A pair of side walls 41 disposed to face each other; A back wall 44 connecting the edges of the side wall 41; A first hinge pin (46) for hinge coupling the side wall (41) and the bracket (20); And a pressing member 45 fixedly connected to the pair of side walls 41. On the upper end of the pedal arm 30, Guide surface for guiding the pressing member 45 of the reverse rotation means 40 when the reverse rotation means 40 rotates in one direction so that the pedal arm 30 is rotated in conjunction with the reverse rotation means 40. (37); The brake device for a vehicle for preventing injury, characterized in that the provided. The method of claim 1, On the guide surface 37, the restoring prevention groove which prevents the pedal arm 30 rotated in the one direction to rotate in the other direction so that the pressing member 45 of the reverse rotation means 40 is fitted ( 38) is a brake device for automobiles for injury prevention, characterized in that is formed. The method of claim 1, With its center fitted to the first hinge pin 46, one end is supported by the hollow pin 34, and the other end is supported by the back wall 44. The brake device for a vehicle, characterized in that it further comprises a torsion spring (47) supporting elasticity in the direction.

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