KR200141964Y1 - Structure of rear door for an automobile - Google Patents

Abstract

The present invention relates to a structure of a rear door for a vehicle, and by reducing the operating stroke value l by reducing the operating radius at the operating point P in the lock plate 3a of the first locking means 3 from R to R '. The operating angle of the inner handle 12 is increased by increasing the operating stroke value l by reducing the operating angle of 4a) and increasing the operating radius at the operating point P in the lock plate 2a of the second opening means 2 from R to R '. It is designed to increase the angle, so that it is locked by the pre-operation of the knob 4a during external impact, so that the lock is not released by the operation of the holder rod 2b of the inner handle 12 so that passengers can be protected. .

Description

Structure of car rear door

1 is a schematic state diagram schematically showing the structure of a vehicle rear door according to the present invention.

Figure 2 (a), (b) is a schematic cross-sectional view of the operation and the inner handle of the second opening means according to the present invention.

Figure 3 (a), (b) is a schematic cross-sectional view of the operation and the knob of the first locking means according to the present invention.

4 is a conventional structure, the door lock assembly state of the vehicle.

5 is an exploded perspective view of a door lock of a vehicle as a conventional structure.

* Explanation of symbols for main parts of the drawings

1: first opening means 1a: push rod

1b: Link 1c: Tension coil spring

1d: Rivet 1e: Push lever

1f: long hole 1g: long hole

2: second opening means 2a: lock plate

2b: holder rod 3: first locking means

3a: Lock Plate 3b: Rivet

3c: torsion spring 3d: link load

4: second locking means 4a: knob

4b: link load 5: switching means

5a: hinge pin 5b: switching lever

6: first bracket 7: base

8,10: torsion spring 9: lock cam

11: 2nd Bracket 12: Inner Handle

13: lock bunch 14: stop

The present invention relates to a structure of a vehicle rear door, and more particularly to a structure of a vehicle rear door to prevent the release of the rear door in the event of a collision of the vehicle to promote the safety of drivers and passengers.

The door lock device of a conventional vehicle is usually provided with a structure as shown in FIG. 4 and FIG.

That is, the door lock device includes a first opening means (1) operated by the outer opening lever and a second opening means (2) operated by the inner opening lever, a car key inserted outside the door and a knob (4a) installed in the inner door. 1 and 2 locking means (3,4) and the switching lever (5b) to be opened and closed by the switch means for switching the locking state of the door lock (5) is connected to the first bracket (6), respectively The lock cam 9 is mounted on the base 7 installed on the rear side of the first bracket 6 so as to have elastic restoring force by the torsion spring 8, and the lock cam 9 The second bracket 11 having elastic restoring force is brought into close contact with another torsion spring 10 at a predetermined position to control the opening and closing method of the door.

The first and second locking means 3 and 4 control the state of opening and closing regardless of opening and closing of the door, and the first and second opening means 1 and 2 are connected to the outer opening lever in the opening control state of the door. The door can be opened by the inner opening lever.

On the other hand, the switching means (5) selects the type of locking state, the locking state of the door lock is switched as the switching lever (5b) up and down, the switching lever (5b) to the lower side If the door is closed without pulling the outer open lever after pressing the knob 4a of the second locking means 4, one end of the hinge pin 5a protruding into the long hole 1g of the link 1b is embedded. The locking state is released by being pushed by the second bracket 11 rotated by the lock cam 9.

Therefore, to close the door while pressing the knob 4 of the second locking means 4 with the switch lever 5b on the lower side, the door is locked by pulling the outer open lever to close the door. Even if the door is closed without pulling the outer open lever after pressing the knob 4a of the second locking means 4 with 5b) on the upper side, the hinge pin 5a protruding into the long hole 1g of the link 1b. Even if one end is rotated twice by the built-in lock cam 9, the locking state is not released by being pushed by the second bracket 11.

However, despite the structure of the rear door having the switching lever 5b as described above, the inner handle 12 is fixed when the holder rod 2b is bent as the impact is applied to the middle part of the rear door during the external collision of the vehicle. As the operating part of the lock side is moved, the lock can be released, which is not satisfied with the law and threatens the safety of the passengers.

The present invention has been devised to solve the above drawbacks, by adjusting the lock plate length of the second opening means and the lock plate of the first locking means, so that the release of the lock by the external shock does not occur to the passengers The purpose is to provide safety of a vehicle rear door that can be secured.

The present invention for achieving the above object, the operating radius at the operating point P in the lock plate of the first locking means and the operating radius at the operating point P in the lock plate of the second opening means the operating angle of the knob and the inner handle In the structure of the vehicle rear door configured to have the same operating angle, the operating angle of the knob is reduced by reducing the operating stroke value l by reducing the operating radius at the operating point P in the lock plate of the first locking means from R to R '. The operating radius of the inner handle is increased by increasing the operating stroke value l by increasing the operating radius at the operating point P in the lock plate of the second opening means from R to R '.

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

1 is a schematic state diagram schematically showing a structure of a rear door for a vehicle according to the present invention, and FIGS. 2 (a) and (b) are schematic cross-sectional views of an operation and inner handle of the second opening means according to the present invention, 3 (a), (b) is a schematic cross-sectional view of the operation and the knob of the first locking means according to the present invention, the same reference numerals are shown in the same parts of Figure 4 and 5, the second The opening means (2) is a lock plate (2a) hinged to the side of the first bracket (6) is coupled to the holder rod (2b) coupled to the inner opening lever to pull the holder rod (2b) It is configured to lift one end of the push lever (1e) to lower (1b), and the first, second locking means (3, 4) is a long hole (1f) formed in the lower center of the link (1b) Rivets (3b) at the bottom center of the first bracket (6) on the left and right sides of the lock plate (3a) having a locking portion (A) fitted to And a torsion spring (3c) which is hinged and rotatably coupled to the rivet (3b) to impart a restoring force to rotate the second bracket (11) clockwise, thereby setting the opening and closing position of the door. A torsion spring (not shown) is fastened to the first bracket 6 and the lock plate 3a to be configured to be opened and closed, and rotated by an automobile key at one end of the lock plate 3a. The link rod 3d and the link rod 4b pivoted by the knob 4a are coupled to the other end, and the present invention, as shown in the drawing, has a lock plate of the second opening means 2. (2a) the operating radius of the inner handle 12 is increased by increasing the operating radius at the operating point P from R to R 'and increasing the operating stroke value ℓ to enable A in Fig. 2 (b) to A'. 27 ° to 35 ° or more, and the first locking means (3) By reducing the operating radius at the operating point P in the plate plate 3a from R to R 'to reduce the operating stroke value l, the stop 14 of FIG. The operating angle of (4a) was reduced from 27 ° to 20 °.

As described above, according to the present invention, the inner handle side is fixed when the holder rod is bent by the external impact, so that the lock side, which is the operating part, moves, and thus the release of the knob is more likely than the prior operation of the knob during external impact. The lock is unlocked by the operation of the holder rod of the inner handle so that the passenger can be protected.

Claims (1)

The operating radius at the operating point P in the lock plate 3a of the first locking means 3 and the operating radius at the operating point P in the lock plate 2a of the second opening means 2 correspond to the operating angle of the knob 4a. In the structure of the vehicle rear door in which the operating angles of the inner handle 12 are equal, the operating radius at the operating point P in the lock plate 3a of the first locking means 3 is reduced from R to R '. By reducing the operating stroke value ℓ, the operating angle of the knob 4a was reduced and the operating radius at the operating point P in the lock plate 2a of the second opening means 2 was increased from R to R ', thereby operating stroke value ℓ. The structure of the vehicle rear door, characterized in that to increase the operating angle of the inner handle (12).