WO2017171286A1

WO2017171286A1 - U-shape shock absorbing safety device for automobile door by means of press forming process method

Info

Publication number: WO2017171286A1
Application number: PCT/KR2017/002962
Authority: WO
Inventors: 민광기; 박종배
Original assignee: 주식회사 비앤엠
Priority date: 2016-03-30
Filing date: 2017-03-20
Publication date: 2017-10-05
Also published as: KR101770216B1

Abstract

The present invention relates to a U-shape shock absorbing safety device for an automobile door by means of a press forming process method, and provides a safety structure for protecting a driver in the event of an unexpected collision with another automobile or object, by welding and coupling an edge support corresponding to an edge of an automobile door to the door and then welding and coupling a U-shape safety bar press-formed to the support, or by welding and coupling a central support corresponding to a flat central portion of an automobile door to the door and then welding and coupling a U-shape safety bar to the support. To this end, the present invention provides the safety structure for the automobile door, constituted in order that: edge supports bent to correspond to edges of both ends of the automobile door are provided to be welded and mutually coupled, wherein bent surfaces of the edge supports correspond to bent surfaces of the door and are welded and coupled thereto; an inwardly recessed portion is formed in a central surface of an attached surface, and the U-shape safety bar is welded and coupled to the attached surface so that an open surface of the U-shape safety bar faces in the inside direction of the door; and a plurality of safety corrugated parts for absorbing shock are formed on the bent surface and the attached surface.

Description

Shock-absorbing safety device for U-shaped car door by press molding processing method

The present invention relates to a shock-absorbing safety device for a U-shaped automobile door by a press molding processing method, by welding a rim support corresponding to the rim of the car door to the door, and welding the U-shaped safety belt to the support. The center support of the car door is welded to a corresponding central supporter on the door, and the U-shaped harness is welded to the support, thereby minimizing damage to the vehicle body in case of unexpected collision with another car or object, thereby protecting the driver. To provide a safety structure.

In general, while driving a car, frequent collisions between vehicles due to inadvertent driving or incomplete road conditions result in serious injuries or death of the occupants and drivers in the cabin. Cases often occur.

Therefore, even in the event of a collision accident while driving a vehicle, various safety devices are installed in the vehicle and are widely used to ensure the safety of the occupant. And an air bag that supports and protects the body, an anti-lock brake system (ABS) that prevents the vehicle from slipping when the vehicle is braked, and a side collision accident occurs while driving the vehicle, Impact bars and the like are provided to prevent the door from entering the compartment.

The shape of a conventional impact bar is a case of simply cutting a circular pipe and attaching it to the side of the door, or a configuration related to the shape of the impact bar itself, or a technology related to the shape of the impact bar and the structure of a support that is correspondingly coupled thereto. Has a minor problem.

Therefore, the impact door structure of the car door impact bar is made of a pipe having an integral cross section of the impact bars between the two fixing brackets, so that the impact resistance is reduced when an external shock is applied, and also the impact absorption and the reduction force are weak, so when the side impact of the vehicle is weak. As the shock is transmitted to the inside of the vehicle without effectively responding to the impact applied to the door, there are problems such as damage and deformation of the vehicle body as well as the danger of passengers in the vehicle being in danger and deterioration of safety. The use of tubes tends to be expensive and increase in weight more than necessary.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Republic of Korea Patent Publication 10-1998-25400

(Patent Document 2) Republic of Korea Utility Model Publication 20-1998-61678

The present invention has been made to solve the above problems, the object of the present invention is to provide a safety bar with a simple structure, by additionally providing an impact support corresponding to the safety bar, to reduce the manufacturing cost, the door coupling efficiency In order to increase the total cost, reduce the impact resistance when an external shock is applied, and also increase the shock absorption and reduction force, to provide a safety structure for a car door that provides driver safety.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention as a means for solving the above problems, in the safety structure for the car door, the edge support bent corresponding to the edge of the both ends of the car door is provided to be welded to each other; The bent surface of the edge support is welded to correspond to the bent surface of the door; An inner concave portion is formed in the central surface of the attachment surface, and the open surface of the U-shaped safety bar which is press-fired is welded to each other to face inwardly the door; The bent surface and the attachment surface are provided with a plurality of safety wrinkles for shock absorption; It is to provide a shock absorbing safety device for a car door made.

As described above, the present invention is to form a safety bar in the U-shaped open type, the manufacturing cost is reduced than the closed round tube, the safety bar is formed in various ways to correspond to the position to which the support is welded, The present invention provides a safety structure for a door corresponding to mass production by being applicable regardless of the type of vehicle.

In addition, the impact resistance is increased when an external shock is applied, and also the shock absorption and reduction force is increased, to provide a shock absorbing safety device for a car door that provides driver safety.

1 is a schematic view showing a safety structure for a door applied to the vehicle door rim of the present invention.

Figure 2 is a schematic view showing the side of the door safety structure applied to the vehicle door rim of the present invention.

Figure 3 is a schematic diagram showing a safety structure for a door applied to the vehicle door center surface of the present invention.

Figure 4 is a schematic view showing the side of the door safety structure applied to the vehicle door center surface of the present invention.

10: safety bar

20: rim support

20a, 30a: bending surface 20b: attachment surface

21, 31: safety wrinkles 25, 35: inner recess

30: center support 32: shock absorbing space portion

33: center

50: door

Before describing the various embodiments of the present invention in detail, it will be appreciated that the application is not limited to the details of construction and arrangement of components described in the following detailed description or illustrated in the drawings. The invention can be implemented and carried out in other embodiments and can be carried out in various ways. In addition, device or element orientation (e.g., "front", "back", "up", "down", "top", "bottom" The expressions and predicates used herein with respect to terms such as "," "left", "right", "lateral", etc. are used merely to simplify the description of the present invention, and related apparatus. Or it will be appreciated that the element does not simply indicate or mean that it should have a particular direction. Moreover, terms such as "first" and "second" are used in the specification and the appended claims for purposes of illustration and are not intended to indicate or mean the relative importance or spirit.

The present invention has the following features to achieve the above object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Looking at the shock-absorbing safety device for the U-shaped vehicle door by the press molding processing method according to the present invention,

As a first embodiment,

In the safety structure for an automobile door,

It is provided so that the rim support 20 is bent to correspond to the rim of both ends of the car door 50 are mutually welded;

The bent surface 20a of the rim support 20 is welded to correspond to the bent surface of the door 50, and an inner concave portion 25 is formed on the center surface of the attachment surface 20b, and press-molded. The open surfaces of the U-shaped safety bar 10 are welded to each other such that the open surface of the U-shaped safety bar 10 faces inwardly,

The bent surface (20a) and the attachment surface (20b) to form a plurality of safety wrinkles for shock absorption (21); The present invention relates to a shock absorber safety device for a U-shaped vehicle door by a press molding process.

As a second embodiment of the present invention,

In the safety structure for an automobile door,

Corresponding to the center surface of the inside of the car door 50 is provided so that the center support 30 is mutually welded;

The inner concave portion 35 is formed at both end side central surfaces of the bent surface 30a formed at the edge of the central support 30, and the open surface of the U-shaped safety bar 10 press-formed is formed on the door 50. Are mutually welded to face inward of

The center portion 33 of the central support 30 is formed in the box-shaped shock-absorbing space portion 32 is an empty space, and the plurality of safety wrinkles 31 are formed on the outer surface of the central portion 33. ; The present invention relates to a shock absorber safety device for a U-shaped vehicle door by a press molding process.

In a third embodiment,

In the safety structure for an automobile door,

The bent surface 20a of the edge support 20 is welded to correspond to the bent surface of the door 50, and the inner concave portion 25 is formed on the center surface of the attachment surface 20b, and the press plastic working The open surfaces of the U-shaped safety bar 10 are welded to each other such that the open surface of the U-shaped safety bar 10 faces inwardly,

The bent surface (20a) and the attachment surface (20b) is formed with a plurality of safety wrinkles for shock absorption 21,

The inner concave portion 35 is formed at both end side central surfaces of the bent surface 30a formed at the edge of the central support 30, and the open surface of the U-shaped safety bar 10 press-fired is formed in the door 50. Are mutually welded to face inward of

1 to 4 will be described in detail according to a preferred embodiment of the present invention.

As shown in Figs. 1 and 2 of the first embodiment,

In the safety structure for an automobile door,

The edges of both ends of the vehicle door 50 are formed of a bent surface, and the edge support 20 is formed to be bent in correspondence to the bent edge and welded to each other.

Each of the edge supports 20 is provided to correspond to both end side surfaces, and the bent surface 20a of the edge support 20 is welded to correspond to the bent surface of the door 50.

In addition, an inner concave portion 25 is formed on the center surface of the attachment surface 20b, and the concave portion (20) is formed so that the open surface of the U-shaped safety bar 10 which is press-fired is directed inward of the door 50. 25) to be mounted and welded together.

The safety bar 10 is characterized in that the press-molded U-shaped open bar, when attached to the support 20 is positioned so that the open surface facing the inner surface of the door 50. This is to form a round closed surface of the safety bar 10 when the car door is opened.

In addition, the bent surface (20a) and the attachment surface (20b) is formed with a plurality of safety wrinkles for absorbing shock, so that the impact relief function of the support 20 during the external impact It is characterized by.

As shown in Figs. 3 and 4 of the second embodiment,

In the safety structure for an automobile door,

The center surface of the inside of the vehicle door 50 maintains a plane, and the center support 30 is provided to correspond to the center surface, and is welded to each other.

Four bent surfaces are formed at the edges of the central support 30, welded to correspond to the central surfaces of the door 50, and inner recesses 35 are formed at both end side central surfaces of the formed bent surface 30a. It is formed.

The inner concave portion 35 is fitted with a U-shaped safety bar 10 which is press-molded, and the open surface is mounted to face inward of the door 50, and is welded to each other.

The U-shaped safety bar (10) is characterized in that the plate is press-processed to form a U-shaped, the processing time is shorter than the normal round tube and the processing cost is cheaper, even in the same external impact than the circular tube, It has the advantage of excellent shock absorption. In addition, there is an advantage that can be reduced in weight compared to the circular tube.

In addition, the center portion 33 of the central support 30 is characterized in that the box-shaped shock-absorbing space portion 32 is formed inside the empty space, and serves to mitigate the impact during external impact will be.

In addition, a plurality of safety wrinkles 31 is formed on the outer surface of the central portion 33, and is responsible for the function of alleviating the impact during external impact.

As a third embodiment of the present invention,

It is to provide a safety structure of the automobile door by mixing the first embodiment mounted on the rim of the door and the second embodiment mounted on the center surface.

This is a type of a car with a relatively large door size, or a structure that is applied to the rim surface and the center surface of the car door in a mixed case when the external shock is relatively large, such as a sports vehicle.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Various modifications and changes may be made without departing from the scope of the appended claims.

Claims

In the safety structure for an automobile door,

It is provided so that the rim support 20 is bent to correspond to the rim of both ends of the car door 50 are mutually welded;

The bent surface 20a of the rim support 20 is welded to correspond to the bent surface of the door 50, and an inner concave portion 25 is formed on the center surface of the attachment surface 20b, and press-molded. The open surfaces of the U-shaped safety bar 10 are welded to each other such that the open surface of the U-shaped safety bar 10 faces inwardly,

The bent surface (20a) and the attachment surface (20b) to form a plurality of safety wrinkles for shock absorption (21); Shock-absorbing safety device for the U-shaped car door by the press molding processing method, characterized in that made.
In the safety structure for an automobile door,

Corresponding to the center surface of the inside of the car door 50 is provided so that the center support 30 is mutually welded;

The inner concave portion 35 is formed at both end side central surfaces of the bent surface 30a formed at the edge of the central support 30, and the open surface of the U-shaped safety bar 10 press-formed is formed on the door 50. Are mutually welded to face inward of

The center portion 33 of the central support 30 is formed in the box-shaped shock-absorbing space portion 32 is an empty space, and the plurality of safety wrinkles 31 are formed on the outer surface of the central portion 33. ; Shock-absorbing safety device for the U-shaped car door by the press molding processing method, characterized in that made.
In the safety structure for an automobile door,

It is provided so that the rim support 20 is bent to correspond to the rim of both ends of the car door 50 are mutually welded;

The bent surface 20a of the rim support 20 is welded to correspond to the bent surface of the door 50, and an inner concave portion 25 is formed on the center surface of the attachment surface 20b, and press-molded. The open surfaces of the U-shaped safety bar 10 are welded to each other such that the open surface of the U-shaped safety bar 10 faces inwardly,

The bent surface (20a) and the attachment surface (20b) is formed with a plurality of safety wrinkles for shock absorption 21,

Corresponding to the center surface of the inside of the car door 50 is provided so that the center support 30 is mutually welded;

The inner concave portion 35 is formed at both end side central surfaces of the bent surface 30a formed at the edge of the central support 30, and the open surface of the U-shaped safety bar 10 press-fired is formed in the door 50. Are mutually welded to face inward of

The center portion 33 of the central support 30 is formed in the box-shaped shock-absorbing space portion 32 is an empty space, and the plurality of safety wrinkles 31 are formed on the outer surface of the central portion 33. ; Shock-absorbing safety device for the U-shaped car door by the press molding processing method, characterized in that made.