KR101808837B1 - Press device for door checker - Google Patents

Abstract

The present invention relates to a press forming apparatus for a checker arm. The press forming apparatus for the check arm comprises: a lower fixing block having a lower pusher pin; a lower moving block connected to the lower fixing block to reciprocate along an axial direction of the lower pusher pin, and provided with a lower opening such that the lower pusher pin protrudes therefrom; and an upper fixing block provided with an upper pusher pin not to axially coincide with the lower pusher pin and reciprocating in the axial direction of the upper pusher pin, wherein a stopper is rotated by a predetermined amount in one direction by the pressure of the upper pusher pin and the lower pusher pin, thus forming a twisted portion in the checker arm. Unlike a prior art, the stopper of the checker arm is rotated as both edges of the stopper is respectively pressed in opposite directions; thereby being able to simply form the twisted portion in the checker arm.

Description

{PRESS DEVICE FOR DOOR CHECKER}

More particularly, the present invention relates to a checker for a checker arm, and more particularly, to a checker for a checker arm, in which a stopper of a checker arm is pressed in opposite directions at opposite edges thereof to rotate the stopper, To a press molding apparatus for a cancer.

Generally, a door of a vehicle is provided with a door hinge and a door checker as means for opening and closing the door.

The door hinge is installed between the door and the car body at two places on the upper and lower sides to withstand the weight of the door and to open and close the door through the hinge pin.

Further, the door checker is located in the middle of door hinges installed on the upper and lower sides, and has a holding function to open the door by a predetermined angle and a stop function to stop when the door is fully opened.

Here, the door checker has a checker arm, one side of which is connected to the vehicle body through a hinge bracket, a stopper on the other side, a plurality of grooves formed on the surface of the checker arm, and a slide motion on the checker arm, And a slide unit whose opening and closing amount is limited by a stopper.

In particular, in order to prevent the breakage of the slide unit by changing the position at which the stopper hits the slide unit, the checker arm forms a twisted portion formed by twisting the edge of the stopper.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

A related art is proposed in Korean Patent Laid-Open Publication No. 10-2017-0069691 (published on June 21, 201, entitled "Automobile Door Checker").

Conventionally, the checker arm having a twisted portion has a problem in that the production cost is increased and the maintenance cost of the mold is increased due to the manufacture of the mold.

Therefore, there is a need to improve this.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a checker arm in which a pusher pin is pressed from above on one side edge of a stopper of a checker arm, And an object of the present invention is to provide a press forming apparatus for a checker arm capable of forming a twisting portion on a checker arm adjacent to a stopper of a checker arm.

A press forming apparatus for a checker arm according to the present invention comprises: a lower fixing block having a lower pusher pin; A lower moving block connected to the lower fixing block so as to be reciprocatable along the axial direction of the lower pusher pin and passing through the lower opening to allow projection of the lower pusher pin; And an upper fixing block having an upper pusher pin so as not to axially coincide with the lower pusher pin, and an upper fixing block reciprocally movable in an axial direction of the upper pusher pin.

The checker arm is rotated in a predetermined amount in one direction by the pushing of the upper pusher pin and the lower pusher pin while the checker arm is placed on the lower moving block corresponding to the lower opening, Thereby forming a twisted portion.

The presser press forming apparatus for a checker arm according to the present invention is characterized in that: the upper pusher pin is connected to the upper fixing block so as to be reciprocatable along the axial direction of the upper pusher pin, Block.

And the upper moving block is in contact with the checker arm before the upper pusher pin.

The lower moving block may position the positioning pins along the circumferential trajectory of the checker arm to fix the checker arm.

And the lower moving block is elastically supported by the lower fixing block by a lower elastic member so that the lower moving block is moved by a pressing external force and projects the lower pusher pin through the lower opening.

The upper moving block is resiliently supported by the upper fixing block by an upper elastic member so as to be moved by a pressing external force, and the upper pusher pin is protruded through the upper opening.

The lower moving block may form a rotation angle setting protrusion on the inner surface of the lower opening to limit an amount of rotation of the stopper.

As described above, in the press-molding apparatus for a checker arm according to the present invention, the pusher pin is pressed from the upper side of one side edge of the stopper of the checker arm and the pusher pin is pressed from the lower side of the other side edge, The twisted portion can be easily formed and formed in the checker arm adjacent to the stopper of the checker arm.

1 is a front view of a press forming apparatus for a checker arm according to an embodiment of the present invention.
FIG. 2 is a perspective view of a checker molding apparatus for a checker arm according to an embodiment of the present invention.
FIG. 3 is a perspective view of a checker-arm press forming apparatus according to an embodiment of the present invention showing a state in which a checker arm is placed on a lower moving block before being formed.
4 to 7 are operational views of a checker arm press forming apparatus according to an embodiment of the present invention.
8 is a perspective view of a checker arm in which a twisted portion is formed by a press forming apparatus according to an embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a press forming apparatus for a checker arm according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a front view of a press forming apparatus for a checker arm according to an embodiment of the present invention, FIG. 2 is a perspective view of a check molding apparatus for a checker arm according to an embodiment of the present invention, Is a louver perspective view showing a state in which a checker arm is placed on a lower moving block of a checker arm press forming apparatus according to the present invention.

4 to 7 are operational views of a checker arm press forming apparatus according to an embodiment of the present invention.

8 is a perspective view of a checker arm in which a twisted portion is formed by a press forming apparatus according to an embodiment of the present invention.

1 to 8, a press forming apparatus 100 for a checker arm 10 according to an embodiment of the present invention is an apparatus for forming and manufacturing a twisting unit 20 in a checker arm 10, A lower fixed block 120, a lower movable block 130, an upper fixed block 140, and a upper movable block 150.

In particular, the checker arm 10 is connected to both the vehicle body and the door so as to guide the multi-opening or closing of the door for the vehicle.

The twisted portion 20 is formed in the stopper 30 of the checker arm 10 so that the stopper 30 formed at the end of the checker arm 10 contacts the slide unit (30).

The lower fixing block 120 is fixed to a floor or a work table and supports the lower moving block 130. The lower fixing block 120 protrudes the lower pusher pin 122 in the upper direction. At this time, the lower fixing block 120 and the lower pusher pin 122 can be deformed into various shapes.

The lower moving block 130 is disposed above the lower fixing block 120 so as to reciprocate along the axial direction of the lower pusher pin 122. At this time, the lower pusher pin 122 elastically supports the lower moving block 130 by the lower elastic member 124. Of course, the lower elastic member 124 can be modified into various shapes, and the number is not limited.

In the initial stage, the lower moving block 130 maintains a distance from the lower moving block 130 set by the elastic supporting force of the lower elastic member 124.

The lower moving block 130 compresses the lower elastic member 124 by an external force and forms a lower opening 132 for projecting or exposing the lower pusher pin 122 upward when the lower movable block 130 is lowered. Of course, the lower opening 132 is formed in a hole shape and can be deformed into various shapes.

In particular, the checker arm 10 is placed above the lower moving block 130 to form the twisted portion 20. At this time, the stopper 30 is located corresponding to the lower opening.

Further, the checker arm 10 must be fixed to the lower movement block 130.

For this purpose, the checker arm 10 is formed with a plurality of receiving portions 162 at its edges or rim, and the lower moving block 130 is provided with a circumferential locus of the checker arm 10 for fixing the position of the checker arm 10 The positioning pins 160 are protruded to be accommodated in the corresponding receiving portions 162 along the longitudinal direction.

At this time, the positioning pins 160 can be applied in various numbers and can be modified into various shapes. Thus, the checker arm 10 is fixed on the lower moving block 130.

In addition, the height of the positioning pin 160 is lower than the height of the checker arm 10. Therefore, the upper moving block 150 comes into contact with the checker arm 10 and presses and fixes the checker arm 10 in the direction of the lower moving block 130.

The lower fixing block 120 protrudes a plurality of lower guide pins 126 so that the lower moving block 130 can be vertically moved along the axial direction of the lower pusher pin 122, 130 are guided by the lower guide pin 126 while inserting the lower guide pin 126, and are linearly reciprocable.

The upper fixing block 140 is fixed to the frame 110 which is linearly reciprocated. Thus, the upper fixing block 140 becomes linearly reciprocable in the axial direction of the upper pusher pin 142. [

Of course, the upper fixing block 140 can be deformed into various shapes, and the frame 110 can be linearly reciprocated in various ways.

The upper fixing block 140 extends an upper pusher pin 142 protruding in the direction of the lower pusher pin 122. At this time, the axial direction of the lower pusher pin 122 and the axial direction of the upper pusher pin 142 do not coincide with each other.

The lower pusher pin 122 pushes one side of the stopper 30 and the upper pusher pin 142 pushes the other side of the stopper 30 in the opposite direction so that the stopper 30 is rotated in one direction.

The stopper 30 of the checker arm 10 is moved between the upper pusher pin 142 and the lower pusher pin 130 in a state in which the checker arm 10 is placed on the lower moving block 130 corresponding to the lower opening 132 122, the checker arm 10 forms the twisted portion 20 by being rotated by a set amount in one direction.

The upper moving block 150 is connected to the upper fixing block 140 so as to be reciprocatable along the axial direction of the upper pusher pin 142 and has an upper opening block 152).

That is, the upper moving block 150 is located on the upper side of the lower moving block 130, and is connected to the upper fixing block 140 so as not to drop arbitrarily.

An upper elastic member 144 is disposed between the upper moving block 150 and the upper fixing block 140. That is, one side of the upper elastic member 144 is connected to the upper moving block 150, and the other side is connected to the upper fixing block 140. Thus, when the upper moving block 150 is pushed toward the upper fixing block 140, the upper elastic member 144 is compressed. Thereafter, when the upper moving block 150 is depressed, the upper moving block 150 is returned to its initial position by the elastic restoring force of the upper elastic member 144. [

Of course, the upper elastic member 144 is applicable in various shapes and is not limited to the number provided.

The upper fixing block 140 includes a plurality of upper guide pins 146 so that the upper moving block 150 can be linearly reciprocated with respect to the upper fixing block 140. The upper moving block 150 includes a plurality of upper guide pins 146, The pin 146 is inserted. Thus, the upper moving block 150 is stably and linearly reciprocally movable by the upper guide pin 146.

The upper pusher pin 142 is protruded or exposed to the lower side of the upper moving block 150 through the upper opening 152 when the upper moving block 150 is moved toward the upper fixing block 140.

At this time, the upper moving block 150 is lowered and brought into contact with the checker arm 10 before the upper pusher pin 142 so that the upper pusher pin 142 is brought into close contact with the lower moving block 130, And the lower pusher pin 122 push the stopper 30.

The lower moving block 130 moves downward in the direction of the lower fixing block 120 by the pushing force of the upper moving block 150 and the upper fixing block 140, And pushes one edge of the stopper 30 through the stopper 132.

As the upper moving block 150 is moved toward the lower moving block 130 while being in contact with the lower moving block 130, the upper moving block 150 is moved toward the upper fixing block 140, The pusher pin 142 pushes the other edge of the stopper 30 through the upper opening 152.

As a result, the stopper 30 is rotated in one direction in the circumferential direction with respect to the axial direction of the checker arm 10. Thus, the edge of the checker arm 10 adjacent to the stopper 30 is twisted to form the twisted portion 20.

Particularly, when the upper moving block 150 is lowered, the lower guide pin 126 can be inserted into the upper moving block 150 to guide the movement of the upper moving block 150.

Similarly, when the upper moving block 150 is lowered, the upper guide pin 146 may be inserted into the lower moving block 120 to guide the movement of the upper moving block 150. FIG.

On the other hand, the stopper 30 can be controlled to be rotated in one direction by a set angle.

For this purpose, the lower moving block 130 may form a rotation angle setting protrusion 170 on the inner surface of the lower opening 132.

The rotation angle setting protrusion 170 is held in contact with the center of the stopper 30 so that the lower pusher pin 122 pushes the one side edge of the stopper 30 upward from the lower side The stopper 30 is rotated in one direction until it comes into contact with the rotation angle setting protrusion 170 as the other side edge of the stopper 30 is pushed from the upper side to the lower side (②).

At this time, after the set time has elapsed in a state in which the lower pusher pin 122 first pushes one side of the stopper 30 so that the rotation angle setting projection 170 does not interfere with the stopper 30 rotated in one direction, (142) can be controlled to push the other side of the stopper (30).

Of course, the rotation angle setting protrusion 170 can be deformed into various shapes and can be provided at various positions.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of the present invention should be determined by the following claims.

10: Checker arm 20: Twisted part
30: stopper 100: press forming device
110: frame 120: lower fixing block
122: Lower pusher pin 124: Lower elastic member
126: Lower guide pin 130: Lower moving block
132: Lower opening block 140: Upper fixing block
142: Upper pusher pin 144: Upper elastic member
146: Upper guide pin 150: Upper moving block
152: Upper opening 160: Positioning pin
162: receiving portion 170: rotation angle setting projection

Claims (6)

A lower fixture block having a lower pusher pin;
A lower moving block connected to the lower fixing block so as to be reciprocatable along the axial direction of the lower pusher pin and passing through the lower opening to allow projection of the lower pusher pin; And
And an upper fixing block having an upper pusher pin so as not to coincide axially with the lower pusher pin and reciprocally movable in an axial direction of the upper pusher pin,
The checker arm is rotated in a predetermined amount in one direction by the pushing of the upper pusher pin and the lower pusher pin while the checker arm is placed on the lower moving block corresponding to the lower opening, Thereby forming a twisting portion.
The method according to claim 1,
And a upper moving block connected to the upper fixing block so as to be reciprocatable along the axial direction of the upper pusher pin and passing through the upper opening to allow projection of the upper pusher pin,
Wherein the upper moving block is in contact with the checker arm before the upper pusher pin.
3. The method according to claim 1 or 2,
Wherein the locator pin is disposed along a circumferential trajectory of the checker arm to fix the checker arm to the position.
3. The method according to claim 1 or 2,
Wherein the lower moving block is resiliently supported by the lower fixing block by a lower elastic member so as to be moved by a pressing external force and to project the lower pressing pin through the lower opening.
3. The method of claim 2,
Wherein the upper moving block is elastically supported by the upper fixing block by an upper elastic member so that the upper moving block is moved by a pressing external force and projects the upper pusher pin through the upper opening.
The method according to claim 1,
Wherein the lower moving block forms a rotation angle setting projection on an inner surface of the lower opening to limit an amount of rotation of the stopper.

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