KR20190064928A - Door checker for vehicle - Google Patents

Abstract

According to an embodiment of the present invention, provided is a door checker for a vehicle, capable of reducing manufacturing costs. The door checker for a vehicle comprises: a checker body mounted on a vehicle door; and a checker arm guiding the checker body depending on the opening and closing of the vehicle door. The checker body comprises: a pair of wires spaced left and right with the checker arm therebetween; an upper molding member fixedly supporting an upper end of the pair of wires; and a lower molding member fixedly supporting a lower end of the pair of wires. Each wire comprises: an upper end fixing part partially or entirely received and fixedly supported in the upper molding member; an upper extension part extending a predetermined length in the vertical direction from the upper end fixing part; a bent part extending from the upper extension part and bent to a predetermined degree toward a side of the checker arm; a lower extension part extending by a predetermined length in the vertical direction from the bent part; and a lower end fixing part extending from the lower extension part and partially or entirely received and fixedly supported in the lower molding member. The upper end fixing part, the upper extension part, the bent part, the lower extension part, and the lower end fixing part are formed by bending and molding an integral metal wire having predetermined rigidity and elasticity.

Description

{DOOR CHECKER FOR VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door checker for a vehicle, which is installed on a hinged door and assists opening and closing operations of the door.

2. Description of the Related Art [0002] In general, a door checker for assisting opening and closing operations of a door is installed on a hinged swing door of a vehicle. Such a door checker allows the user to feel an opening / closing operation feeling by generating a door feel (checker force) when the door is opened and closed, adjusts the rotating speed when opening / closing the heavy door and adjusts the rotation range to a predetermined range .

Typically, the door checker comprises a checker arm hinged to the vehicle body through a shoe at one end, and a body portion mechanically coupled to the door checker arm. At this time, a predetermined curvature is formed on the outer surface of the checker arm to give a sense of theft, and the curvature interacts with the elastic means provided on the body portion, so that the door feeling is given when opening and closing the door. The feeling of theft is generated according to the bending of the checker arm, and it is generally composed of two or three stages depending on the type of the vehicle and the position of the door.

In the initial door checker, the checker arm itself is formed of an elastic body such as a leaf spring, and a method of generating two or three stages of thrill feeling through elastic deformation of the checker arm is used (for example, Shinan Bulletin No. 20-1997-0018294), problems such as durability deterioration of the checker arm and weakening of checker force are repeatedly pointed out. In recent years, the main body of the checker arm is provided with elastic means. And the insert molding process is mainly performed.

The door checkers used in recent years can be classified into several types according to the type of the elastic means for elastically supporting the checker arm and the manner of imparting a sense of theft. Generally, rubber, compression springs, and the like are used as the elastic means. Slide type, roller type, and ball type are widely used depending on the contact with the checker arm.

The slide type uses a method in which a slider made of an elastic body such as rubber or plastic is brought into contact with the outer surface of the checker arm and a check force is generated through frictional force along the contact surface and bending of the outer surface of the checker arm. For example, Japanese Laid-Open Patent Publication No. 10-2005-0035482 discloses such a slide type door checker. Such a slide type door checker has an advantage that it is relatively simple in structure, easy to assemble and manufacture, and can be implemented at a low cost.

The roller type uses a roller that rolls on the outer surface of the checker arm instead of a friction contact type slider. Generally, the roller type includes a pair of rollers contacting and rolling on the upper and lower sides of the checker arm, and a compression spring for elastically supporting the rollers. These rollers, compression springs, and the like are inserted into the housing to form a main body. For example, Japanese Laid-Open Patent Publication No. 10-2006-0055591 discloses such a roller type door checker. Roller type has relatively low coefficient of friction as compared with slide type, so it is possible to perform relatively smooth opening and closing operation, and it is known that it has excellent feeling of opening and closing operation. However, the roller type has a disadvantage that the manufacturing cost is higher than that of the slide type because the number of parts is increased and the assembling or manufacturing is relatively difficult.

The ball type has a steel ball instead of a roller and uses a method in which the steel ball rolls on the outer surface of the checker arm. For example, in Patent Publication No. 10-2011-0089472, Type door checker. In the ball type, the steel ball is properly rolling on the checker arm having the bending, and it is possible to realize a better operation feeling as compared with the roller type. However, due to the use of the steel ball, And the manufacturing cost is also high, so that it is limitedly applied to relatively advanced vehicles.

On the other hand, as eco-friendliness has emerged as a major issue in the automobile industry in recent years, there has been a continuing demand for reduction of parts cost for parts such as lightweight parts and compact cars to reduce fuel consumption in the field of automobile parts. Respectively.

Published Utility Model Publication No. 20-1997-0018294 (May 26, 1997) Published Patent Application No. 10-2005-0035482 (Apr. 18, 2005) Japanese Patent Application Laid-Open No. 10-2006-0055591 (2006.05.24) Published Patent Application No. 10-2011-0089472 (Aug. 2011)

Embodiments of the present invention are intended to provide a door checker for a vehicle which can be reduced in weight and can reduce manufacturing cost.

According to an aspect of the present invention, there is provided a checker body mounted on a vehicle door; And a checker arm for guiding movement of the checker body according to opening and closing of the vehicle door, wherein the checker body includes a pair of wires spaced laterally from each other with the checker arm interposed therebetween; An upper molding member fixedly supporting the upper ends of the pair of wires; And a lower molding member fixedly supporting the lower ends of the pair of wires, wherein the wires are partially or entirely received in the upper molding member and fixedly supported; An upper extension extending a predetermined length in the vertical direction from the upper end fixing portion; A bending portion extending from the upper extension portion and bent or bent to a predetermined degree toward the checker arm side; A lower extension portion poured into the bent portion and extending a predetermined length in a vertical direction; And a lower end fixing part extending from the lower extension part and partially or wholly received and fixedly received in the lower molding member, wherein the upper fixing part, the upper extension part, the bend part, the lower extension part, The lower end fixing portion may be provided with a door checker for a vehicle, which is formed by bending an integral metal wire having predetermined rigidity and elasticity.

The door checker for a vehicle according to the embodiments of the present invention can integrate and replace the functions of the conventional slider and the elastic body through a pair of wires provided on the checker body. Therefore, the door checker for a vehicle according to the embodiments of the present invention has an advantage in that the number of parts can be reduced and weight can be reduced.

Further, the door checker for a vehicle according to embodiments of the present invention can be mounted directly on a vehicle door or the like, with a pair of wires, an upper molding member molded on the upper and lower ends thereof, and a lower molding member. That is, the door checker for a vehicle according to the embodiments of the present invention does not require a separate housing, and it is also possible to reduce the weight by omitting the housing.

Further, the vehicle door checker according to the embodiments of the present invention can be easily manufactured by minimizing the number of parts thereof and insert molding the upper molding member and the lower molding member into a pair of wires. Therefore, the door checker for a vehicle according to the embodiments of the present invention is easy to manufacture and has an advantage that the manufacturing cost can be lowered compared to the conventional art.

1 is a perspective view of a door checker for a vehicle according to an embodiment of the present invention.
2 is a front view of the vehicle door checker shown in Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It is to be understood, however, that the following examples are provided to facilitate understanding of the present invention, and the scope of the present invention is not limited to the following examples. In addition, the following embodiments are provided to explain the present invention more fully to those skilled in the art. Those skilled in the art will appreciate that those skilled in the art, Will be omitted.

1 is a perspective view of a door checker 2 for a vehicle according to an embodiment of the present invention. 2 is a front view of the vehicle door checker 2 shown in Fig.

Referring to FIGS. 1 and 2, a door checker for a vehicle (hereinafter referred to as a door checker 2) of the present embodiment may include a checker body 100.

The checker body 100 is mounted on the vehicle door and can be moved along the checker arm 200 when the door is opened or closed. The checker body 100 may have a pair of wires 110 for interacting with the bend 210 of the checker arm 200 to generate a checker force. Each of the wires 110 may be formed of a metal wire having predetermined elasticity and rigidity. The pair of wires 110 can be disposed laterally with the checker arm 200 interposed therebetween, and can be elastically deformed corresponding to the bend 210 of the checker arm 200. The detailed configuration of each wire 110 will be described later.

The checker body 100 may include an upper molding member 120 fastened to an upper end of a pair of wires 110 and a lower molding member 130 fastened to a lower end of the pair of wires 110. The upper molding member 120 fixes and supports the upper ends of the pair of wires 110 and the lower molding member 130 can support the lower ends of the pair of wires 110. Preferably, the upper molding member 120 and the lower molding member 130 are formed of a resin material and can be manufactured through insert molding. That is, the upper molding member 120 and the lower molding member 130 can be manufactured by injecting resin into the upper and lower ends of the pair of wires 110 with the insert water. This manufacturing method facilitates the production of the door checker 2 and can contribute to lowering the manufacturing cost.

The upper molding member 120 may be provided with an upper bolt hole 121 and the lower molding member 130 may be provided with a lower bolt hole 131. [ The checker body 100 can be mounted on the vehicle door through the upper bolt hole 121 and the lower bolt hole 131. [

On the other hand, the door checker 2 of the present embodiment may include a checker arm 200. [

The checker arm 200 may extend in the longitudinal direction so that one side of the checker arm 200 may be hinged to the vehicle body through a shoe and the other side thereof may include a stopper for preventing the checker body 100 from being separated from the checker arm.

The checker arm 200 is disposed between the pair of wires 110 to guide movement of the checker body 100 upon opening and closing of the door. The checker arm 200 may have a curved surface 210 formed on the side surface thereof to interact with the pair of wires 110 to generate a checker force.

In the door checker 2, the checker body 100 is moved back and forth when the door is opened and closed in a state where a pair of wires 110 are in contact with the side surface of the checker arm 200. At this time, the pair of wires 110 that are in contact with the side surface of the checker arm 200 are elastically deformed as they pass the bend 210, thereby generating a checking force (opening feeling) due to opening and closing of the door. Particularly, in the door checker 2 of the present embodiment, the respective wires 110 are elastically tilted and deformed about the vertical axis T of the up and down direction, and correspondence to the bent portion 210 and generation of the checking force are made . Such a structure is simple in structure, so that the manufacturing cost of the door checker 2 can be reduced, and the number of parts can be reduced, contributing to weight reduction.

Each of the wires 110 includes an upper end fixing portion 111, an upper extension portion 112, a bending portion 113, a lower extension portion 112, (114) and a lower fixing part (115). The upper end fixing part 111 to the lower side fixing part 115 may be sequentially arranged from the upper end to the lower end of each wire 110, and one metal wire may be bent and integrally formed. In other words, each of the wires 110 is formed by bending a predetermined metal wire so that the metal wire is bent and formed from the upper end to the lower end by the upper end fixing portion 111, the upper extension portion 112, the bend portion 113, the lower extension portion 114, (115) may be sequentially formed.

A top fixing part 111 may be formed on the top of each wire 110. The upper fixing part 111 may be partly or entirely received in the upper molding member 120 and fixedly supported. The upper fixing part 111 may be bent in a direction substantially orthogonal to the upper extending part 112 extending in the up and down direction and may be formed to be received and fixed to the upper molding member 120. This allows the top fixing part 111 to provide sufficient fixing holding force against the tilting deformation of each wire 110.

The upper extension 112 may be formed by extending a predetermined length in the vertical direction from the upper end fixing portion 111. The upper extension 112 can form a deformation axis T together with the lower extension 114 when the wires 110 are tilted.

The bent portion 113 may extend from the upper extending portion 112 and may be bent or bent to a predetermined degree toward the side of the checker arm 200. The bent portion 113 may be contacted directly or indirectly (when the contact cap 113d is provided) on the side surface of the checker arm 200. [ The bent portion 113 preferably includes an upper inclined portion 113a bent downwardly inclined toward the side of the checker arm 200, a contact portion 113b bent upward from the upper inclined portion 113a and a contact portion 113b And a lower inclined portion 113c bent downward in a direction away from the side of the checker arm 200. [

If necessary, the bending part 113 may be provided with a contact cap 113d. The contact cap 113d may be formed in the contact portion 113b with a plastic resin material. The contact cap 113d may be slidably contacted with the side surface of the checker arm 200 to reduce the frictional force with the checker arm 200, thereby realizing a more smooth operation feeling. The contact cap 113d may have a step portion 113e at the upper and lower ends thereof. The step portion 113e is disposed in contact with or close to the upper surface and the lower surface of the checker arm 200 to reduce the upward and downward flow when the checker body 100 moves.

On the other hand, the lower extension 114 can be formed by extending a predetermined length in the vertical direction from the lower slant 113c at the lower end of the bend 113. [ The lower extension 114 corresponds to the upper extension 112 on the upper side of the bend 113 and forms the deformation axis T of each wire 110 together with the upper extension 112.

The lower fixing part 115 extends from the lower extension part 114, and a part or all of the lower fixing part 115 can be received and fixedly received by the lower molding member 130. The lower fixing part 115 may be bent in a direction orthogonal to the lower extension 114 similarly to the upper fixing part 111 and fixedly supports the lower end part when each wire 110 is tilted. The upper end portion of each wire 110 can be fixedly supported by the upper end fixing portion 111 as described above.

As described above, the pair of wires 110 are formed of metal wires having predetermined rigidity and elasticity, so that the upper and lower ends are fixedly supported by the upper molding member 120 and the lower molding member 130, respectively do. The checker body 100 can maintain the shape as shown by connecting the wire 110 having the predetermined rigidity between the upper molding member 120 and the lower molding member 130.

In addition, the checker body 100 may generate a checker force by elastically tilting the wires 110 corresponding to the bend 210 of the checker arm 200. That is, when the contact portion 113b or the contact cap 113d of each wire 110 passes the bending 210 of the checker arm 200, each wire 110 is tilted and deformed about the deformation axis T A predetermined checker force is generated.

As described above, the door checker 2 according to the present embodiment can integrate and replace the functions of the conventional slider and the elastic body through the pair of wires 110 provided in the checker body 100. [ Therefore, the door checker 2 of this embodiment has an advantage that the number of parts can be reduced and the weight can be reduced. The door checker 2 of the present embodiment includes a pair of wires 110 and an upper molding member 120 and a lower molding member 130 molded at upper and lower ends of the door checker 2 as one structure, . That is, the door checker 2 of this embodiment does not require a separate housing, and it is also possible to reduce the weight by omitting the housing. Furthermore, the door checker 2 of the present embodiment can be easily manufactured by insert molding the upper molding member 120 and the lower molding member 130 on the pair of wires 110 with the minimum number of parts. Therefore, the door checker 2 of this embodiment is easy to manufacture and has an advantage in that the manufacturing cost can be lowered compared with the conventional one.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

2: vehicle door checker 100: checker body
110: wire 111: upper end fixing portion
112: upper extension part 113:
114: lower extension part 115: lower end fixing part
120: upper molding member 130: lower molding member
200: Checker arm 210: Flexure

Claims (3)

A checker body (100) mounted on a vehicle door; And
And a checker arm (200) for guiding movement of the checker body (100) according to opening and closing of the vehicle door,
The checker body (100)
A pair of wires 110 disposed laterally spaced apart by the checker arm 200;
An upper molding member 120 for fixing and supporting the upper ends of the pair of wires 110; And
And a lower molding member 130 for fixing and supporting the lower ends of the pair of wires 110,
Each of the wires (110)
A top fixing part 111 which is partially or wholly received and fixedly received in the upper molding member 120;
An upper extension 112 extending a predetermined length in the vertical direction from the upper end fixing part 111;
A bent portion 113 extending from the upper extension portion 112 and bent or bent to a predetermined degree toward the side of the checker arm 200;
A lower extension 114 which is poured into the bent portion 113 and extends a predetermined length in a vertical direction; And
And a lower end fixing part 115 extending from the lower extension part 114 and partially or wholly received and fixedly received in the lower molding member 130,
The upper fixing part 111, the upper extension part 112, the bending part 113, the lower extension part 114 and the lower end fixing part 115,
Wherein the metallic door wire is formed by bending and molding an integral metal wire having predetermined rigidity and elasticity. The method according to claim 1,
The checker arm (200)
And at least one bend (210) on the side,
Each of the wires (110)
And is elastically tilted about a deformation axis T formed by the upper extension part 112 and the lower extension part 114 in response to the bend 210. The method according to claim 1,
The upper end fixing part 111 and the lower end fixing part 115,
Are respectively bent in a direction orthogonal to the upper extension part (112) and the lower extension part (114)
The bend section
An upper slope part 113a extending obliquely toward the side of the checker arm 200 from the upper extension part 112;
A contact portion 113b extending upward and downward from the upper slope portion 113a;
A contact cap 113d formed on the contact portion 113b and slidingly contacted with the side surface of the checker arm 200 and having a step portion 113e at the upper and lower ends; And
And a lower inclined portion (113c) formed to extend from the contact portion (113b) in an inclined manner in a direction away from the side surface of the checker arm (200).

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