KR101526851B1 - Impact absorbing device for vehicle door - Google Patents

Abstract

A shock absorber attached to one side of the vehicle door, an actuating plate having one side swinging inside and outside of the vehicle door edge, a rotating plate hinged to the other side of the actuating plate and swinging, a slot formed in the actuating plate, And a fixed hinge for supporting sliding and rotation of the actuating plate within the slot, wherein the shock absorber of the actuating plate oscillates inside and outside the door due to the swinging motion of the rotary plate.

Description

TECHNICAL FIELD [0001] The present invention relates to a shock absorber for a vehicle door,

The present invention relates to a door for protecting a door edge and preventing damage to other structures (such as a vehicle) mounted on a car door, which protrudes only when the door of the vehicle is opened, Which relates to protecting car doors and exterior structures.

The car door edge is made of iron plate. It is easily deformed due to the impact and has a problem of causing damage to other vehicles when colliding with the side surface of another vehicle.

To solve this problem, a sponge is attached to the edge of the door, which is attached to the vehicle at the time of shipment from the maker of the vehicle, or attached to the user's need.

However, in many cases, it is necessary to prevent the appearance of the protruding shape and the wind noise generated at the time of high-speed start.

There is an application related to a door protector to solve this problem. Document 1 discloses a technique for driving a slide member reciprocally by driving a rotary member and attaching a protector to the end of the slide member.

Document 2 uses a link and cam driving scheme, and a structure in which a U-shaped structure rotates inside and outside the door edge is proposed. This suggests a technique using the change of the lever length caused by the opening angle change of the door.

Reference 3 discloses that the U-shaped protector mounted on the door edge portion is involved in rocking motion, and is protruded to the outside of the door when opened, and is depressed into the inside when closed. This is characterized in that it is driven by a belt, and a belt and a wheel are used by utilizing the displacement generated by the opening angle of the door.

Patent Document 1: Japanese Patent Application Laid-Open No. 10-2010-0063557 A (Title of the invention: Protective device for a motor vehicle door open date: June 11, 2010) International Publication No. WO 2005/021305 A1 (Title of the Invention: Door Edge Protector for a Vehicle Published Date: March 10, 2005) International Publication No. WO 2011/146967 A1 (entitled "Edge Protector for Vehicle Doors", published on Jan. 12, 2011)

Recently, automakers are studying durability enhancement, light weight, and modularization in an important development direction.

That is, there is no failure of components even in long-term use, and the number of parts is minimized to reduce the production cost and weight, and modularization is aimed at enhancing the ease of assembly and the completeness of the product.

In the invention of Document 1, a rotating member is separately required, which uses power, so that energy loss may occur. Further, an electronic device for controlling the motor power is required, and there is a problem that the electronic device is not fully inserted into the door.

The invention of Document 2 has an advantage of not using additional power but it is operated by a link structure and shows a structure connected to a cam, so that a durability problem may occur due to an impact generated when the door is closed. Further, it is difficult to modularize, and difficulties may arise in installing the vehicle inside a door of a complicated vehicle.

Document 3 significantly reduces the number of parts and has the advantage of not using the power, but since the rubber belt is used, the accuracy of the operation is poor and durability problems may occur for long time use.

The present invention was invented for the purpose of minimizing the number of components, lightening the weight of the parts, facilitating modularization, increasing durability, and facilitating operation without additional power.

The door shock absorber according to the present invention comprises: an operating plate (100) having a shock absorber (103) attached to one side thereof and swinging the inside and the outside of the vehicle door edge; A rotating plate 200 coupled to the hinge 104 with the other side of the actuating plate 100 and swinging; And a fixed hinge 300 forming a slot 101 inside the actuating plate 100 and supporting the sliding and rotation of the actuating plate 100 in the slot 101, The shock absorber of the operation plate swings inside and outside the door. Further, the motor is operated by the limit switch or the proximity sensor, and the worm wheel and the worm gear are operated by the motor to operate the rotating plate.

The following effects can be obtained from the present invention. Since the components such as rack gear, pinion, and gear (including worm gear, worm wheel, and drive motor) are integrally formed in the bracket, they can be modularized and the rotation range of the rotary plate and the operating range of the shock absorber And it has the effect of facilitating the operation of the shock absorber in a narrow space, the load on the roller by the roller mounted there is no burden on the friction, the effect that the power device is not required by the spring, .

1 is an overall sectional view of a door shock absorber;
2 is a front view of the door shock absorber;
Fig. 3 is an operation step of the operation plate according to the change of the angle of the rotation plate. Fig.
4 is a detailed perspective view of the drive system.
Fig. 5 is an overall operating view of the operating plate by angle; Fig.
6 is a front view of the door shock absorbing device of the motor driving type.

The present invention was invented for the purpose of minimizing the number of relative parts, making it lightweight, facilitating modularization, increasing durability, and facilitating operation without additional power compared to the prior arts.

≪ Example 1 >

The door shock absorbing device of the present invention comprises an actuating plate 100 having one side swinging inside and outside of a door edge of a vehicle, a rotary plate 200 mounted on the other side of the actuating plate 100, A fixed hinge 300 that forms a slot 101 inside the slot 100 and supports sliding and rotation of the actuating plate 100 in the slot 101, (400), and a rack driving body (500) for generating a reciprocating motion to the driving system (300).

This causes the rack driving body to reciprocate in accordance with the change in the gap generated when the door is opened and closed, and in particular, has an effect of pushing (closing the left side) and pulling it when opening (right movement). That is, the driving system is operated by the left-right movement, and the driving system converts the left-right movement into the swinging motion, and the swinging motion causes the swinging plate to swing within the range of a certain angle. The actuating plate coupled to the turntable is operated in conjunction with the swinging motion of the turntable, but the operating range is constrained by the fixed hinge coupled to the slot formed in the middle of the actuating plate. That is, one side of the operation plate operates in a U-shape on the inside and the outside of the door edge.

The operation plate 100 is formed with a "C" -shaped groove 102 formed on one side of the operation plate, and the shock absorber 103 coupled to one side of the " Shaped grooves 102 are formed in only a part of the surface contacting the operation plate 100 and the material of the shock absorber 103 is selected from sponge, rubber and plastic.

Since the door edge is protruded, one side of the operating plate moving to the inside and the outside of the door forms a U-shape, and the door edge is inserted into the U-shaped groove.

The shock absorber is made of a material such as sponge, rubber or plastic, which absorbs an impact load by an external impact, protects the door edge of the vehicle, and can prevent damage to the structure colliding with the door edge.

The driving system 400 includes a main shaft 401 on both sides of which the rotary plate 200 is symmetrically fixed and a gear 403 is fixed at a central portion thereof; A fixed shaft 402 engaged with the gear 403 and supporting the rotation of the pinion 404; And a rack gear 405 engaged with the pinion 404.

And a gear 403 for converting a reciprocating motion of the rack body into a rocking motion and coupled with a pinion 404 pinion coupled with the rack. This serves to convert the reciprocating motion of the rack into rotational motion do. Since the main shaft 401 to which the gears are coupled is fixedly coupled with the rotary plate, the rotary motion of the rotary plate is finally generated by driving the pinion. The pinion is coupled to the fixed shaft, and the pinion and the fixed shaft form a bushing with an oilless bearing.

A sliding block 407 is formed in the inside of the rack gear 405 and a guide rod 406 is inserted into the through hole and slidably supports a mating face of the teeth under the rack gear 407. [ .

A through hole is formed in the inside of the rack gear to limit the movement of the rack gear to allow the rack gear and the pinion to engage with each other and to enable smooth operation. The through hole is inserted through the guide rod. This is for the purpose of keeping the direction of movement of the rack gear constant and is intended to keep the pinion and rack gear fully engaged. Further, a block such as a slider block is supported on the lower part of the rack gear, and the slider block is formed of a Teflon material having a remarkably small coefficient of friction, which has the purpose of reducing frictional resistance generated in operation of the rack gear.

The rack actuator 500 includes a rod 501, one side of which is engaged with the rack gear 405, and the other side of which is coupled with the roller 502; A spring (503) coupled in the middle of the rod; A spring support plate (504) for preventing the movement of the spring; Lt; / RTI >

The reciprocating motion is imparted to the rack gear, and the reciprocating motion is based on the difference in displacement due to the opening and closing of the door. That is, the rod protruding to the outside of the door has a roller at the end to prevent wear, and smooth operation can be generated. Further, a spring is mounted inside the rod to automatically actuate the rack drive body to the right when opened, and the spring can be supported by the spring support plate to impart an elastic force.

The rack actuator is divided into two rods, which are divided into a rod combined with a rack gear (hereinafter referred to as a rack rod) and a rod combined with a roller (hereinafter referred to as a driving rod). The rack rods and drive rods can be joined by bolts, rivets, pins, etc., for ease of assembly. In addition, the two rods are divided to make the size of the driving rod various according to the size of the door of the vehicle, and the rack rod portion has the characteristic of being configured by modularization.

Each flange (601, 602) supporting both sides of the fixed hinge (300); Respective flanges (603, 604) supporting both the main shaft (401) and the fixed shaft (402); The flanges 601, 602, 603, and 604 are erected on one plate, and the bracket 600 is mounted inside the door of the vehicle.

The guide pin, the main shaft, the fixed shaft, and the fixed hinge are integrally formed in one bracket, and this is for the purpose of modularization. That is, all the components are assembled in one bracket, which is welded, bolted, riveted, etc. to the inside of the door panel of the vehicle.

The fixed hinge and the flanges 601 and 602 must be completely fixed and the flanges 603 and 604 fix the main shaft and the fixed shaft at the same time. Particularly, since the main shaft is fixedly coupled with the gear and the rotary plate, the bushing can be fastened to the joint portion between the flange and the plate to induce smooth rotation.

The rods are journaled into two shapes at the part to be engaged with the rack gear, and fasten both sides of the rack gear to the inside of the two journals.

The center line L1 connecting the central axis P1 of the fixed hinge 300 and the central axis P2 of the main axis 401 forms an acute angle with respect to the parallel edge L2 of the door plane with reference to the door edge. The fixed hinge center axis P1 is located between the central axis P2 of the main axis and the door edge P0 and is formed deflected from the center of the operating plate toward the end P0 of the door edge.

The actuating plate is driven by the rotation of the turntable, and the actuating plate generates a curvature of the contrary shape with the operating locus of the turntable by the fixed hinge. Further, as the center of the rotating plate moves away from the center of the operating plate, the rotational locus of the portion to which the shock absorber is attached becomes smaller.

That is, the shock absorber is intended to move the inside and outside of the thin door edge within a narrow range, and this is an object to reduce the threat from the user when the door is opened.

≪ Example 2 >

The operation plate rotating plate and the fixed hinge of the first embodiment correspond to the same configuration, and the motor drive system is used in the same system.

A main shaft 705 which is fixed symmetrically to the rotary plate 200 and has a worm wheel 702 fixed at the center thereof; A worm gear 701 engaged with the worm wheel 702; A motor controller (not shown) made up of any one of a drive motor 704 for transmitting power to the worm gear 701, a limit switch (not shown) for controlling the operation of the drive motor or a proximity sensor (not shown) The limit switch is mounted on the door side or on the side of the car, and is operated depending on whether the door is opened or closed.

Each flange supporting both sides of the fixed hinge 300; Each flange supporting both sides of the main shaft 401; And a bracket (not shown) mounted on the inside of the door of the vehicle, wherein the flanges are formed upright on one plate.

100: operating plate, 101: slot,
102: shock absorber, 103: C-shaped groove,
200: a rotating plate, 300: a fixed hinge,
400: driving system, 401: main shaft,
402: fixed shaft, 403: gear,
404: pinion, 405: rack gear,
406: guide rod, 407: sliding block,
500: rack driving body, 501: rod,
502: roller, 503: spring,
504: spring support plate, 600: bracket.
701: Worm gear, 702: Worm wheel,
703: Reducer, 704: Driving motor,

Claims (9)

In a door shock absorber of a vehicle,
A rotating plate 200 fixed to the main shaft at its center and rocking by external power;
One side of which is rotatably coupled at a position spaced apart from the center of the rotating plate,
An operating plate 100 forming a slot therein;
A fixed hinge (300) coupled to the slot and mounted in a fixed position to limit movement of the actuating plate; And
A shock absorber 102 coupled to the other side of the operating plate;
Is formed in the vehicle body.
The method according to claim 1,
As the external power of the rotating plate,
A rod 501 mounted inside the door and reciprocating according to opening and closing of the door;
A rack gear 405 coupled to one side of the rod;
A pinion 404 engaging with the rack gear;
A gear 403 coupled to the main shaft and meshing with the pinion;
A spring support plate 504 coupled to the rod;
A spring 503 coupled to the spring support plate;
Wherein the door shock absorber is formed of a metal material.
The method according to claim 1,
As the external power of the rotating plate,
A pinion coupled to the main shaft;
A drive motor 704 that is gear-engaged with the pinion; And
A motor control device (707) for controlling the operation of the drive motor;
Is formed in the vehicle body.
The method according to claim 1,
As the external power of the rotating plate,
A worm wheel 702 coupled to the main shaft;
A drive motor 704 coupled to the worm wheel; And
A motor control device (707) for controlling the operation of the drive motor;
Is formed in the vehicle body.
The method according to claim 3 or 4,
The motor control device
And a limit switch or an approach sensor mounted on the vehicle door or the vehicle body for detecting whether the door is open or closed.
The method according to claim 1,
The fixed hinge 300 is characterized in that the center line L1 connecting the central axis P1 and the central axis P2 of the rotary plate forms an acute angle with respect to the door edge with respect to the parallel line L2 of the door plane. Shock absorber.
The method according to claim 6,
The fixed hinge center axis P1 is positioned between the central axis P2 of the rotary plate and the door edge P0 and is formed to be deflected from the operation plate central portion CL toward the end P0 of the door edge Vehicle door shock absorber.
The method according to claim 1,
The shock absorber coupled to the operating plate
A " C " -shaped groove 102 whose one side is formed with an inclined opening portion; A shock absorber 103 coupled to one side of the " C " The vehicle door shock absorber.
The method according to claim 1,
Wherein the material of the shock absorber (103) is selected from among sponge, rubber and plastic.

Images