KR101559697B1

KR101559697B1 - The door pillar for car

Info

Publication number: KR101559697B1
Application number: KR1020150040431A
Authority: KR
Inventors: 김기일
Original assignee: 김기일
Priority date: 2015-03-24
Filing date: 2015-03-24
Publication date: 2015-10-13

Abstract

The present invention relates to a door pillar and, more specifically, to a door pillar capable of reducing the weight since being manufactured of a synthetic resin and improving workability. The door pillar for a vehicle includes: a body member and a wing member. The wing member includes: a bracket unit having a through hole for fixing the bracket unit to a vehicle frame by a screw; and a guide rail including a protrusion inserted into the vehicle frame to fix the position of the through hole and connected to one side of the body member, wherein vehicle glass slides thereon. The body member and the wind member are integrally formed since the synthetic resin is injection-molded. Moreover, it is desirable that the wing member has multiple injection holes in a longitudinal direction to prevent changes in the size during the injection molding of the synthetic resin. According to the present invention, the body member and the wing member are integrally formed by the synthetic resin. So, a process for manufacturing a door pillar for a vehicle is simplified and the weight of the door pillar can be reduced.

Description

The door pillar for car < RTI ID = 0.0 >

The present invention relates to a door pillar for an automobile, and more particularly, to a door pillar for an automobile which is made of a synthetic resin and can reduce weight and workability.

The existing doorpillar for automobiles is mounted on the door of a vehicle to improve the appearance of the vehicle and to guide the sliding of the car window. To do this, the door pillar must be sturdy enough to be visible, to guide the sliding of the window, and to withstand a constant load.

Therefore, the door pillar was produced through roll forming and press process with good formability to satisfy these conditions. However, when the door pillar is made of metal, the weight of the door pillar is increased so that the weight of the vehicle body is increased.

6, the door pillar is separated into a wing member 63 coupled to the door frame 50 of the vehicle and a body member 61 exposed to the outside of the vehicle, Was guided by the sliding of the car windows and received a lot of load, so it was molded into metal and fixed to the car body by welding or the like. Since the body member 61 is not subjected to a load, it is injected with a synthetic resin and bonded to the vehicle body.

Published Utility Model No. 20-1997-0029984 (published on July 24, 1997) Open Patent No. 10-2006-0037209 (published on May 3, 2006)

The conventional door pillar formed of the synthetic resin body member 61 and the metal wing member 63 has a problem in that the manufacturing process is complicated because it requires a metal to be molded.

In addition, the conventional door pillar has a problem that the weight of the wing member 63 is still large because the wing member 63 is formed of metal.

The present invention is intended to solve the above problems. An object of the present invention is to provide a door pillar for an automobile in which a body member (61) and a wing member (63) are integrally formed of synthetic resin.

The automotive door pillar according to the present invention includes a body member and a wing member. Wherein the wing member includes a bracket portion formed with a through hole to be screwed on a vehicle body of a vehicle and a protrusion that can be inserted into the vehicle body to fix the position of the through hole, A guide rail on which the glass slides is formed. And the body member and the wing member are integrally formed by being injected with a synthetic resin.

In addition, in the automotive door pillar, it is preferable that the wing member further includes a plurality of injection holes along the longitudinal direction to prevent the deformation of the synthetic resin during the injection.

In addition, in the automotive door pillar, the wing member may further include a plurality of reinforcing ribs coupled to one side of the body member to increase the strength.

The automotive door pillar may further include a metal clip for covering the bracket so that the screw can be inserted to protect the bracket.

Since the face body member and the wing member according to the present invention are integrally formed of synthetic resin, the process of manufacturing the door pillar for an automobile is simple, and the weight of the door pillar can be reduced.

Further, according to the present invention, since the projections are formed on the wing member, when the door pillar is fixed to the door frame of the vehicle, the projection is inserted into the door frame of the vehicle, thereby positioning the through hole of the bracket portion. Therefore, the door pillar can be easily assembled to the door frame of the vehicle.

Further, according to the present invention, since the injection hole is formed in the wing member, the dimensional change can be minimized when injected with the synthetic resin. Therefore, the door pillar can be integrally injected using the synthetic resin.

Further, according to the present invention, since the reinforcing rib is formed on the wing member, the strength can be increased even if synthetic resin is used.

1 is a perspective view of an embodiment of a door pillar according to the present invention,
FIG. 2 is a perspective view of the embodiment of FIG.
FIG. 3 is a partially enlarged view of FIG. 1;
Fig. 4 is a conceptual view of the section of Fig. 1,
Fig. 5 is a conceptual view of the embodiment of Fig. 1 attached to a vehicle,
6 is a conceptual view of a cross section of a conventional door pillar.

1 to 5, an embodiment of a door pillar for an automobile according to the present invention will be described.

An automotive door pillar 1 according to an embodiment of the present invention includes a body member 10, a wing member 20, and a metal clip 40.

The body member 10 is exposed to the outside of the vehicle, and the wing member 20 is engaged with the door frame of the vehicle to guide the sliding of the window. The body member 10 and the wing member 20 of the present embodiment are integrally formed by being injected with a synthetic resin.

The wing member 20 is provided with a bracket portion 21, projections (clip shape) 23 and reinforcing ribs 29, and a guide rail 25 and an injection hole 27 are formed.

The bracket portion 21 is formed with a through hole 22 to be screwed to the vehicle body (door frame 50) of the vehicle. That is, when the door pillar 1 is fixed to the vehicle, the through hole 22 of the bracket portion 21 is aligned with a screw hole (not shown) formed in the door frame 50 of the vehicle,

The projections 23 are projected to the wing members 20 so as to be inserted into the insertion holes 51 of the door frame 50 to fix the positions of the through holes 22. [ When the protrusion 23 is inserted into the insertion hole 51, the position of the wing member 20 is fixed. At this time, when the protrusion 23 is inserted into the insertion hole 51 of the door frame 50, the through hole 22 of the bracket portion 21 is formed so as to coincide with the screw hole formed in the door frame 50 of the vehicle. Therefore, when the protrusion 23 is inserted, the wing member 20 is fixed with the through hole 22 coinciding with the screw hole, so that the wing member 20 can be easily coupled to the vehicle.

The reinforcing ribs 29 serve to increase the rigidity of the wing members 20. In this embodiment, since the wing member 20 is formed by injection molding with synthetic resin, its strength is weaker than that of conventional metal such as aluminum. A plurality of reinforcing ribs 29 are formed so as to be coupled to one side of the body member 10 to reinforce the reinforcing ribs 29. The wing member 20 of the present embodiment is formed with the reinforcing ribs 29. By reinforcing the thickness of the reinforcing ribs 29 to increase the strength, the strength can be sufficiently increased even if synthetic resin is used.

The guide rail 25 guides sliding of the automobile glass. A plurality of injection holes (27) are formed along the longitudinal direction of the wing member (20). When the wing member 20 is injected using a synthetic resin, dimensional deformation occurs while being cooled. Therefore, when the body member 10 and the wing member 20 are integrally injected by using a synthetic resin, deformation occurs to be a defective product, so that the body member 10 and the wing member 20 are integrally formed only with synthetic resin, It was difficult to do. The injection hole 27 minimizes deformation of the dimension generated during the cooling process when the synthetic resin is injected, so that the synthetic resin can be injected and applied to the door pillar. At this time, the number of the injection holes 27 can be determined through repetition of the injection operation.

The metal clip 40 serves to enclose the bracket 21 so that a screw can be inserted to protect the bracket 21. A through hole 22 is formed in the bracket portion 21 and is coupled to the vehicle body through a through hole 22 with a screw. At this time, if the screws are directly fastened to the bracket part 21 made of synthetic resin, there is a possibility that the bracket part 21 is damaged, so that the metallic metal clip 40 covers the bracket part 21 to protect the bracket part 21 .

According to the present embodiment, since the body member 10 and the wing member 20 are integrally formed by being injected with the synthetic resin, the weight of the door pillar can be reduced, and there is no need to roll-form or press the metal, .

In addition, since the wing member 20 can be easily fixed to the vehicle body by inserting the protrusion 23 into the insertion hole of the vehicle body, assembly of the door pillar is easy.

1: door pillar 10: body member
20: wing member 21: bracket part
22: through hole 23: projection
25: guide rail 27: injection hole
29: reinforcing rib 40: metal clip
50: Body

Claims

A body member,
A bracket portion formed with a through hole to be screwed on a vehicle body of the vehicle and a protrusion that can be inserted into the vehicle body to fix the position of the through hole, wherein the protrusion is coupled to one side of the body member, A wing member in which a guide rail is formed,
And a metal clip surrounding the bracket portion so that the screw can be inserted to protect the bracket portion,
Wherein the body member and the wing member are integrally formed by being injected with a synthetic resin.

The method according to claim 1,
Wherein the wing member is further formed with a plurality of injection holes along the longitudinal direction to prevent deformation of the synthetic resin during dimensional injection.

3. The apparatus according to claim 2, wherein the wing member
Further comprising a plurality of reinforcing ribs coupled to one side of the body member to increase strength.

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