KR100635994B1 - Electrical parking brake having manual release device in vehicle - Google Patents

Abstract

An electronic parking brake having a manual release device for a vehicle is provided to simplify the mechanical structure by manually controlling a motor in the driver seat. An electronic parking brake having a manual release device for a vehicle, comprises a connection rod(4), an equalizer(5), and a manual release device(7). The connection rod is fixed to a screw rod(3). The screw rod is linearly moved through a transmission gear(2) rotated by a motor(1) supplying and releasing a braking force to the parking brake. The equalizer equally pulls a parking cable(6) being moved along a moving direction of the screw rod, to operate brake devices of each wheel. The manual release device pivots a pivot plate(8) that connects the connection member with the equalizer, thereby loosening tension of the parking brake when the motor is broken down, so that the brake can be released manually.

Description

Electrical Parking Brake having manual release device in vehicle

1 is a block diagram of a manual release device for an electronic parking brake for a vehicle according to the present invention

2 is a normal operation of the electronic parking brake according to the invention

3 is an operation of manually releasing using the manual release device according to the invention

    <Description of the symbols for the main parts of the drawings>

1: drive motor 2: transmission gear

3: screw rod 4: connecting member

5: equalizer 6: parking cable

7: Manual release mechanism 8: Rotating plate

8a: Connecting body 8b, 8c: 1st and 2nd hole

8d: Hinge extension team 9: Hinge shaft

9a: operation cable handle 10: fixing pin

11: spring

a: Rotation interval b: Rotation width

C: Centerline

The present invention relates to an electronic parking brake for a vehicle, and more particularly to an electronic parking brake for a vehicle having a manual release device.

In general, when a driver parks a vehicle that the driver gets off, the parking brake is operated to restrain the movement of the vehicle.

Such a parking brake normally distributes the force applied to the parking cable pulled by the parking brake lever evenly to the brake mechanism mounted on the wheel through an equalizer, through which the brake mechanism restrains the wheel to prevent vehicle movement. Will be prevented.

As described above, in the case of braking the wheel by operating the parking brake lever, it is very inconvenient because the driver has to manually operate the parking brake lever every time in order to brake the parking lot. This will be.

Accordingly, an electric parking brake device is used to safely maintain the braking state while simply performing the parking operation by using the driving force of the motor during parking to alleviate the inconvenience of the manual type. Such an electric parking brake device is used. In general, when driving the motor by pressing the operation switch, as the motor pulls the parking cable according to the rotation of the equalizer (Equalizer) to generate an even braking force on each wheel.

However, in such an electronic parking brake device, the law stipulates that the operating state can be manually released in the event of a power supply or electronic component failure in the operating state. There is a need for a simple and convenient manual release mechanism that does not require storing or using a separate tool for release.

Accordingly, the present invention has been invented in view of the above-mentioned points, and it is possible to manually release the operating state by directly operating in the driver's seat, while releasing the restraining force of the motor as it is simply pulled. The purpose is to make it work.

According to the present invention for achieving the above object, the electronic parking brake is a forward rotation (parking brake operation) and reverse rotation (parking brake release) is mediated by the transmission gear rotated by a motor that provides a parking brake braking or releasing force A connection member fixed to the screw rod that is linearly moved to the center;

An equalizer which is moved in the movement direction of the screw rod and equally pulls the parking cable to operate the brake mechanism of each wheel;

Manual release mechanism for loosening the tension of the parking cable in case of failure of the motor to manually release the parking brake fastening force, and rotating the rotation plate connecting the connecting member and the equalizer separated from each other so that the equalizer is increased from the connecting member. ;

Characterized in that consisting of.

In addition, the present invention is a rotating plate that connects the equalizer and the connection member separated from each other while forming the manual release mechanism,

The hinge shaft fixed to the spring fixed to the connecting member while the operation cable handle is extended to hold and pull by hand is coupled,

Fixing pins protruding from the connecting member and the equalizer, respectively, are inserted into the first and second holes having an arrangement parallel to each other to fix the position of the pivoting plate.

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

1 is a block diagram of a manual release device for an electronic parking brake for a vehicle according to the present invention, the electronic parking brake of the present invention is mounted near a driver's seat of a vehicle and operates an operation button for energizing the vehicle battery power during operation. Drive motor (1), which delivers the parking brake braking or releasing force by forward rotation (parking brake operation) and reverse rotation (parking brake release) through the power supplied according to the position, and transmits the rotational force of the motor (1) The screw rod (3) is linearly moved through the rotational force of the gear (2), the one end of the screw rod (3) is coupled through the coupling member 4 is moved along the direction of movement of the screw rod (3) Equalizer 5 which equally pulls parking cable 6 connected to the brake mechanism of each wheel and parking brake between drive motor 1 and equalizer 5 in case of failure of drive motor 1. To manually release the clamping pressure microphone is configured with a manual release mechanism (7).

Here, the transmission gear (2) is composed of a pair, that is, a drive gear that is rotated directly receiving the rotational force of the drive motor 1, and a driven gear that is engaged with the drive gear rotates, and the drive gear and It consists of a structure in which a helical gear is formed on the outer circumferential surface of the driven gear.

In addition, the screw rod (3) is screwed into the screw hole formed in the center of the driven gear of the transmission gear (2), so that the linear movement to move forward or pushed back according to the rotation direction when the driven gear is rotated.

And, the manual release mechanism (7) is a pair of rotational position to the upper surface and the bottom portion of the connecting member 4 and the equalizer 5 to connect between the connection member 4 and the equalizer 5 separated from each other Hinges fixed to the plate 8 and the pivoting plate 8 while the operating cable handle 9a which is elongated so that the spring 11 fixed to the connecting member 4 is fixed while being fixed by the hand are fixed. It consists of a fixing pin (10) protruding from the shaft (9) and the connecting member (4) and the equalizer (5) to fix the position of the pair of pivoting plates (8).

Here, the pivoting plate 8 has a hinge extension end 8d fixed to the hinge axis 9 and the hinge extension end 8d at both ends thereof in parallel with each other, and the connecting member 4 and the equalizer ( 5, the first and second long holes 8b and 8c and the first and second long holes 8b and 8c are formed in a rectangular shape so that the fixing pins 10 protruding from each other may be inserted into the connecting member 4 and the equalizer. It consists of a connecting body (8a) formed in a size that covers a portion of (5).

In addition, the first and second long holes (8b, 8c) are each formed with a length falling from the center line (C) by a rotation interval (a) while one end thereof is on the center line (C) of the connecting body (8a), The formation direction has a direction away from each other in the center line (C) in the opposite direction.

Meanwhile, the fixing pins 10 provided on the connecting member 4 and the equalizer 5 are positioned on the same straight line, and the fixing pins 10 are formed in the first and second holes of the pivot plate 8. When inserted into 8b and 8c, it is positioned on the centerline C of the rotating plate 8, and thus the equalizer without flow of the rotating plate 8 when pulled by the screw rod 3 during parking brake operation. Of course, you can pull 5).

In addition, the operation cable handle (9a) of the manual release mechanism (7) is of course exposed to the outside to allow the driver to pull by hand in the driver's seat.

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

The electronic parking brake apparatus of the present invention operates or releases the parking brake by using the motor 1 that generates the rotational force by simple operation of the operation button. At this time, after the parking brake is operated, a power supply or a failure of the electronic component is generated. If the parking brake cannot be released by the switch operation alone, the parking brake is manually released.

That is, according to the present invention, when the motor 1 is operated by operating the operation button (to perform the operation of locking the wheel), as in the operation of the conventional electronic parking brake, the motor as shown in FIG. The transmission gear 2 which consists of a pair of gears in which (1) meshes rotational force is rotated.

Subsequently, when the screw rod 3 screwed to the center of one of the transmission gears is pulled as the transmission gear 2 rotates, the connecting member 4 to which the screw rod 3 is fixed is also pulled together. Pulling the rotation plate 8 is inserted into the fixing pin (10).

As such, when the pivoting plate 8 is pulled, the equalizer 5 coupled with the pivoting plate 8 is pulled in the same direction through the fixing pin 10 on the opposite side of the connecting member 4, and thus the motor The rotational force of (2) is converted into a linear movement of the screw rod (3) via the transmission gear (2) while pulling the connecting member (4), the pivoting plate (8) and the equalizer (5), to the equalizer (5). As the combined parking cable 6 is pulled, the brake mechanism mounted on each wheel is operated to lock the wheel.

At this time, if the parking brake is operated and the wheels are locked, and the power supply or the electronic component is broken and the operation of the parking brake cannot be released only by operating the operation button, the manual release mechanism exposed to the driver's seat ( 7), the wheel locking state can be easily released.

That is, as shown in FIG. 3, when the operation cable handle 9a constituting the manual release mechanism 7 is pulled out, the hinge shaft 9 on which the operation cable handle 9a is fixed is applied to the spring 11 tension. The rotating plate 8 is pulled while winning and pulling.

At this time, the pivoting plate 8 is fixed pin 10 is maintained in a fixed state, the position of the fixing pin 10 relative to the first and second long holes (8b, 8c) the fixing pin 10 is inserted The position change between the fixing pin 10 and the first and second long holes 8b and 8c increases the distance between the connecting member 4 and the equalizer 5 so that the parking cable 6 can be rotated. Loosen the wheel to unlock the wheel.

That is, as shown in FIG. 3, between the fixing pin 10 of the connecting member 4 and the fixing pin 10 of the equalizer 5 according to the clockwise rotation of the rotation plate 8, the first and second holes are provided. Compared to the spacing between 8b and 8c in parallel with each other, the interval between the ends of the first long hole 8b and the end of the second long hole 8c is diagonally increased, which is the first and second long holes. The rotation width b, which is the length of the diagonal lines 8b and 8c, is increased to cause the equalizer 5 to move, causing the tension of the parking cable 6 to be loosened.

On the other hand, the operation of returning to the original position so that the parking brake can be operated again by using the motor 1 in its original position, that is, in a normal operating state, when the parking brake is released, it is simply performed. Release the operation cable handle (9a) was held in the operating state, the tension spring (11) is returned to the initial position to pull the hinge shaft (9).

Subsequently, as the hinge shaft 9 is pulled by the spring 11, the rotation plate 8 is rotated counterclockwise so that the rotation plate 8 is returned again. Accordingly, the first and second holes 8b of the rotation plate 8 are rotated. 8c is returned to the state parallel to each other as shown in Fig. 2, and is returned to the normal parking brake operating state.

As described above, according to the present invention, between the motor part generating the driving force to operate the electronic parking brake and the equalizer for pulling the parking cable, the normal parking brake operation is performed while breaking or connecting the connection relationship with each other through mechanical operation. By manually releasing the parking brake operation, it is possible to quickly and simply perform a normal return due to the failure of the electronic parking brake, as well as to implement a simple structure without having a complicated structure.

In addition, the present invention, since the operation unit for releasing the parking brake operation when the electronic parking brake breaks, is formed as a driver's seat while forming the components of the electronic brake, it does not use a separate tool, so convenience and inconvenience of storing a separate tool. Of course, there is no effect.

Claims (5)

On the screw rod 3 which is linearly moved through the transmission gear 2 rotated by the motor 1 which is rotated forward (parking brake operation) and reverse rotation (parking brake release) to provide parking brake braking or releasing force. A fixed connection member 4; An equalizer 5 which is moved in the direction of movement of the screw rod 3 and equally pulls the parking cable 6 to operate the brake mechanism of each wheel; Rotating the rotating plate 8 connecting the connecting member 4 and the equalizer 5 separated from each other so as to loosen the tension of the parking cable 6 and manually release the parking brake fastening force when the motor 1 fails. Manual release mechanism (7) to allow the equalizer (5) to increase the distance from the connecting member (4); An electronic parking brake for a vehicle with a manual release device. The rotating plate (8) according to claim 1, which connects the connection member (4) and the equalizer (5) separated from each other while forming the manual release mechanism (7), The hinge shaft 9 is fixed to the spring 11 is fixed to the connecting member 4 is fixed to the operating cable handle (9a) is extended to be held and pulled by hand, Fixing pins protruding from the connecting member 4 and the equalizer 5 with the first and second long holes 8b and 8c arranged in parallel to each other to fix the position of the pivoting plate 8 ( 10) Electronic parking brake for a vehicle having a manual release device characterized in that is inserted. 3. The rotating plate (8) according to claim 2, wherein the rotating plate (8) consists of a pair of upper and lower surfaces of the connecting member (4) and the equalizer (5), respectively, and the hinge shaft (9) is the rotating plate (8). An electronic parking brake for a vehicle with a manual release device characterized in that it is fixed to a hinge extension end (8d) which protrudes from. 3. The length of the first and second long holes 8b and 8c, respectively, one end of which is separated from the centerline C by a rotational interval a while one end thereof is on the centerline C of the connecting body 8a. And the forming direction is a direction away from each other in the opposite direction from the center line (C). 3. The vehicle electronic parking brake according to claim 2, wherein the operation cable handle (9a) is exposed to the outside so as to be grasped by a hand from the outside.

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