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KR-20260065687-A - Plate type impact bar with camber profile for a vehicle door

KR20260065687AKR 20260065687 AKR20260065687 AKR 20260065687AKR-20260065687-A

Abstract

The present invention relates to an impact beam for shock absorption of an automobile door, and more specifically, to an impact beam of an automobile door having a shock absorbing material. To this end, the present invention provides an impact beam of an automobile door having a shock absorbing material, characterized in that the impact beam of an automobile door (20) comprises: a hollow beam (110) that is hollow in cross-section and can be inserted into the interior of the impact beam (50); and a plurality of ribs extending from the hollow beam (110) toward the inner surface of the impact beam (50).

Inventors

  • 임준혁

Assignees

  • 서진산업 주식회사

Dates

Publication Date
20260511
Application Date
20241101

Claims (10)

  1. In the impact beam of the car door (20), It can be inserted into the interior of the above impact beam (50), and On the cross-section A hollow beam (110) with an empty interior; and An impact beam of an automobile door having an impact absorbing material, characterized by having an impact absorbing material (100) comprising a plurality of ribs extending from the hollow beam (110) toward the inner surface of the impact beam (50).
  2. In Article 1, The above-mentioned hollow beam (110) is an impact beam of a car door having an impact absorbing material, characterized in that it has one of a circular cross section, an elliptical cross section, and a polygonal cross section.
  3. In Article 1, The above plurality of ribs are, An impact beam of an automobile door having a shock absorbing material, characterized by first, second, and third ribs (120, 130, 140) arranged at equal angles around the circumference of the hollow beam (110).
  4. In Paragraph 3, An impact beam of an automobile door having an impact absorbing material, wherein the first rib (120) is oriented toward the external collision direction of the door (20).
  5. In Paragraph 3, An impact beam of an automobile door having an impact absorbing material, characterized in that the length of the first rib (120) is longer than the length of the second and third ribs (130, 140).
  6. In Article 1, The impact beam of a car door having an impact absorbing material, characterized in that the above impact beam is a circular steel impact beam (50a).
  7. In Article 1, The impact beam of a car door having an impact absorbing material, characterized in that the impact beam is an aluminum impact beam (50b) with a square cross section.
  8. In Article 1, An impact beam of an automobile door having an impact absorbing material, characterized in that the cross-sectional center of the hollow beam (110) is inserted eccentrically from the cross-sectional center of the impact beam (50).
  9. In Article 1, An impact beam of an automobile door having an impact absorbing material, characterized in that the plurality of ribs have a length that is in close contact with the inner surface of the impact beam (50).
  10. In any one of paragraphs 1 through 9, The impact beam of an automobile door having a shock absorber, wherein the shock absorber (100) comprises one of polyurethane, engineering plastic, aluminum, and steel.

Description

Impact beam of a vehicle door with shock absorbing material {Plate type impact bar with camber profile for a vehicle door} The present invention relates to an impact beam for shock absorption of an automobile door, and more specifically, to an impact beam of an automobile door having a shock-absorbing material. Generally, impact bars (or safety bars, impact beams) are built into the interior of car doors to absorb the impact caused by a vehicle collision. When an impact is applied, the impact bar bends to absorb the shock energy, serving to protect the occupants. FIG. 1 is a perspective view of a vehicle (10) with an impact beam installed, and FIG. 2 is a perspective view of the impact beam (50) in FIG. 1. As shown in FIG. 1 and FIG. 2, an impact beam (50) is installed at an angle inside the door (20), and both ends of the impact beam (20) are firmly fixed to the door (20) inner panel by welding or the like by first and second brackets (30, 40). Conventional impact beams (50) such as those in FIGS. 1 and 2 are made of steel or aluminum for shock absorption. However, as the passing standards for side impact tests have recently been strengthened, there are cases where conventional impact beams (20) also fail to meet the standards. Therefore, although parts are being added or designs modified to resolve these conventional problems, the improvement plans differ for each vehicle model, making it inefficient and increasing production costs. The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings. FIG. 1 is a perspective view of a vehicle (10) with an impact beam installed. FIG. 2 is a perspective view of the impact beam (50) of FIG. 1, FIG. 3a is a cross-sectional view in the AA' direction of FIG. 2 in the case of a steel impact beam (50a), FIG. 3b is a cross-sectional view in the AA' direction of FIG. 2 in the case of an aluminum impact beam (50b), FIG. 4 is a perspective view and an enlarged cross-sectional view of a shock absorbing material (100) according to the present invention. FIGS. 5a to 5d are state diagrams showing the process of a steel impact beam (50a) having an impact absorbing material (100) inserted according to the present invention being deformed by an external collision. FIGS. 6a to 6d are state diagrams showing the process of an aluminum impact beam (50b) with an impact absorbing material (100) inserted according to the present invention being deformed by an external collision. Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement the invention. However, since the description of the present invention is merely an example for structural or functional explanation, the scope of the present invention should not be interpreted as being limited by the embodiments described in the text. That is, since the embodiments are subject to various modifications and may take various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical concept. Furthermore, the objectives or effects presented in the present invention do not imply that a specific embodiment must include all of them or only such effects; therefore, the scope of the present invention should not be understood as being limited by them. The meaning of the terms described in this invention should be understood as follows. Terms such as "first" and "second" are intended to distinguish one component from another, and the scope of rights shall not be limited by these terms. For example, the first component may be named the second component, and similarly, the second component may be named the first component. When a component is referred to as being "connected" to another component, it should be understood that it may be directly connected to that other component, or that there may be other components in between. Conversely, when a component is referred to as being "directly connected" to another component, it should be understood that there are no other components in between. Meanwhile, other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," shall be interpreted in the same manner. A singular expression should be understood to include a plural expression unless the context clearly indicates otherwise, and terms such as "include" or "have" are intended to specify the existence of the set-up features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood not to preclude the existence or addition of one or mor