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KR-20260063380-A - Multi-axial mode BSR test jig for door trim

KR20260063380AKR 20260063380 AKR20260063380 AKR 20260063380AKR-20260063380-A

Abstract

The present invention relates to a jig for multi-axis mode BSR testing of a door trim, which enables the evaluation of BSR performance of the door trim by applying a multi-axis mode excitation environment capable of reproducing a test environment identical to a driving situation in actual vehicle mode. The jig comprises a main post installed in an up-and-down direction relative to a test plate to support the door trim, a first sub-post supporting the main post in a left-right direction relative to the test plate, and a second sub-post supporting the main post in a front-rear direction relative to the test plate. The main post is provided in a quantity of at least one pair at a mutually spaced position relative to the test plate, and the door trim is supported by having both left and right ends fixed to the pair of main posts. The first sub-post is installed at an angle relative to the pair of main posts in the left-right direction, and the second sub-post is installed at an angle relative to the pair of main posts in the front-rear direction.

Inventors

  • 한재옥

Assignees

  • 주식회사 서연이화

Dates

Publication Date
20260507
Application Date
20241030

Claims (7)

  1. A main post installed vertically relative to a test plate to support the door trim, A first sub-post supporting the main post in the left-right direction with respect to the test plate, and It includes a second sub-post that supports the main post in the front-rear direction with respect to the test plate, and The above main posts are provided in a quantity of at least one pair at positions spaced apart from each other with respect to the test plate, and The above door trim is fixed and supported at both left and right ends to the above pair of main posts, and The first subpost is installed so as to be inclined in the left and right directions with respect to the pair of main posts, respectively. A jig for multi-axis mode BSR testing of a door trim, wherein the second subpost is configured to be installed at an angle in the front-rear direction relative to the pair of main posts.
  2. In claim 1, A jig for multi-axis mode BSR testing of a door trim, characterized in that the main post is installed on the test plate via a fixing bracket, and the fixing bracket has a through hole for coupling with the main post and a fastening slot for coupling with the test plate.
  3. In claim 1, A jig for multi-axis mode BSR testing of a door trim, further comprising a vertical bracket for coupling with the main post and a horizontal bracket for coupling with the test plate, wherein the first subpost and the second subpost have both ends fixed to the vertical bracket and the horizontal bracket.
  4. In claim 3, A jig for multi-axis mode BSR testing of a door trim, characterized in that the vertical bracket has a first fastening slot for coupling with the main post and a first assembly slot for coupling with the first sub-post or the second sub-post.
  5. In claim 4, A jig for multi-axis mode BSR testing of a door trim, characterized in that the first subpost and the second subpost are provided with a transverse fastening portion at their free ends for coupling with the first assembly slot, the first assembly slot is provided with a transverse corresponding fastening portion for coupling with the transverse fastening portion, and the transverse fastening portion and the transverse corresponding fastening portion each have an assembly projection and an assembly groove formed alternately at equal intervals, wherein the length of the transverse fastening portion is set to be smaller than the length of the transverse corresponding fastening portion.
  6. In claim 3, A jig for multi-axis mode BSR testing of a door trim, characterized in that the horizontal bracket has a second fastening slot for coupling with the test plate and a second assembly slot for coupling with the first subpost or the second subpost.
  7. In claim 6, A jig for multi-axis mode BSR testing of a door trim, characterized in that the first subpost and the second subpost are provided with a transverse fastening portion at their free ends for coupling with the second assembly slot, the second assembly slot is provided with a transverse corresponding fastening portion for coupling with the transverse fastening portion, and the transverse fastening portion and the transverse corresponding fastening portion each have an assembly projection and an assembly groove formed alternately at equal intervals, wherein the length of the transverse fastening portion is set to be smaller than the length of the transverse corresponding fastening portion.

Description

Multi-axial mode BSR test jig for door trim The present invention relates to a jig for multi-axis mode BSR testing of a door trim, and more specifically, to a jig for multi-axis mode BSR testing of a door trim that enables the evaluation of BSR performance of the door trim by applying a multi-axis mode excitation environment capable of reproducing a test environment identical to the driving conditions of an actual vehicle mode. Recently, as the NVH (Noise, Vibration, Harshness) performance of automobiles has been enhanced, the sensitivity to noise generated in door trims, which are interior components of automobiles, has increased significantly, and consequently, the need to enhance the BSR (Buzz, Squeak, Rattle) performance of door trims is continuously increasing. To enhance the verification of BSR performance of door trims, evaluations must be conducted under a test environment identical to actual vehicle driving conditions. However, conventional BSR performance evaluations of door trims are conducted based solely on a unidirectional vertical standard to meet customer requirements, resulting in testing not being performed in an environment identical to actual vehicle driving conditions. Consequently, further improvements to the test conditions for evaluating the BSR performance of door trims are necessary. In other words, since the test jig applied to the BSR performance evaluation of conventional door trims is shaped to be optimized for unidirectional conditions in the vertical direction, there is a need to develop a new type of dedicated test jig for multi-axis mode evaluation. FIG. 1 is a drawing illustrating the usage state of a jig for multi-axis mode BSR testing of a door trim according to an embodiment of the present invention. Figure 2 is a disassembled view of the multi-axis mode BSR test jig of the door trim shown in Figure 1. FIG. 3 is a drawing for explaining the configuration of a transverse fastening part formed in each of the first subpost and the second subpost, and a transverse corresponding fastening part formed in each of the first assembly slot and the second assembly slot, as another embodiment of the present invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached illustrative drawings. Referring to FIG. 1 and FIG. 2 respectively, a jig for multi-axis mode BSR testing of a door trim according to an embodiment of the present invention is configured to fix a door trim (10) to a test plate (20) and includes a main post (30), a first sub-post (40), and a second sub-post (50). The main post (30) is configured to be installed in the vertical direction (Z) relative to the test plate (20) to support the door trim (10). To this end, the main post (30) is installed on the test plate (20) via a fixing bracket (32). At this time, the fixed bracket (32) is configured to have a through hole (32a) for connection with the main post (30), and fastening slots (32b) for connection with the test plate (20) on both sides centered on the through hole (32a). Additionally, it is preferable that the main posts (30) be provided in a quantity of at least one pair at positions spaced apart from each other with respect to the test plate (20). In this case, the door trim (10) is fixed and supported at both left and right ends with respect to the pair of main posts (30). The first subpost (40) is configured to support the main post (30) in the left-right direction (X) relative to the test plate (20). At this time, it is preferable that the first subpost (40) be installed so as to be inclined in the left-right direction relative to the pair of main posts (30). The second subpost (50) is configured to support the main post (30) in the front-rear direction (Y) relative to the test plate (20). At this time, it is preferable that the second subpost (50) be installed so as to be inclined in the front-rear direction relative to the pair of main posts (30). An embodiment of the present invention further comprises a vertical bracket (60) for connection with the main post (30) and a horizontal bracket (70) for connection with the test plate (20). At this time, the first subpost (40) and the second subpost (50) are configured to be fixed by installing both ends at an angle with respect to the vertical bracket (60) and the horizontal bracket (70). The vertical bracket (60) is configured to have a first fastening slot (62) for connection with the main post (30) and a first assembly slot (64) for connection with the first sub-post (40) or the second sub-post (50). At this time, it is preferable that the first fastening slot (62) be provided on both sides centered around the first assembly slot (64). Meanwhile, with reference to FIG. 3, the first subpost (40) and the second subpost (50) are provided with a transverse fastening part (80) for connection with the first assembly slot (64) at their free ends, and the first assembly slot (64) is configured to be