A twistable center of mass bar for seat belt anchor testing

By using a torsionable centroidal bar with a composite structure of rubber and metal rods, the problem of centroidal bar detachment in seat belt anchor point tests was solved, achieving precise load transfer and adaptive backrest deformation, thus improving the accuracy and safety of the test.

CN224398988UActive Publication Date: 2026-06-23HEFEI ZHUOJUN AUTOMOBILE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI ZHUOJUN AUTOMOBILE TECHNOLOGY CO LTD
Filing Date
2025-08-04
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In seat belt anchor point tests, existing rigid core bars are prone to detachment, affecting the accuracy and safety of the test.

Method used

The torsionable centroidal bar adopts a composite structure of rubber and metal rods. The rubber rod can deform with the seat back, and the metal rod is connected to the loading device to achieve precise load transfer and adaptive deformation.

Benefits of technology

It improves the accuracy and safety of the test, prevents the centrifugal bar from falling off, and enhances the testing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of torsional center of mass stick for seat safety belt fixing point test, it is related to automobile seat safety belt fixing point test technical field, including rubber stick body, the metal stick body connected with rubber stick body both ends, metal stick body is equipped with the fixed block for connecting seat, the connecting hole for connecting loading equipment;A kind of torsional center of mass stick for seat safety belt fixing point test of the utility model, precise transmission of test load and backrest deformation self-adaptation are realized by metal and rubber composite structure, backrest deformation followability is strong, compared with rigid center of mass stick, the interference effect of rigid center of mass stick to seat structure is eliminated, prevent center of mass stick from falling off in test process, improve test efficiency and accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of automotive seat belt anchor point testing technology, and in particular to a torsionable centroidal bar for seat belt anchor point testing. Background Technology

[0002] When conducting seat belt anchor point tests, according to standard requirements, a center of gravity bar needs to be fixed at the center of gravity of the seat to apply gravity to the seat. However, for tests where the seat belt anchor point is on the seat, the rigid center of gravity bar, which previously had a reinforcing effect on the seat, may fall off during the test due to the deformation of the seat back. This not only poses a safety hazard but also affects the accuracy of the test.

[0003] Therefore, a torsionable centroid bar for seat belt anchor point testing was designed to improve the above-mentioned problems. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a torsionable centrifugal bar for testing seat belt anchor points. The problem is solved through a rigid-flexible composite structure. During the test, the equipment loads the seat through the centrifugal bar. When the seat back deforms, the rubber bar deforms accordingly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A torsionable centroidal bar for testing seat belt anchor points includes a rubber bar body and a metal bar body connected to both ends of the rubber bar body. The metal bar body is provided with a fixing block for connecting to the seat and a connection hole for connecting to a loading device.

[0007] As a preferred embodiment of this utility model, the fixing block is provided with multiple rows of fixing holes.

[0008] As a preferred embodiment of this invention, the connecting hole is provided at the end of the metal rod and / or on the metal rod.

[0009] As a preferred embodiment of this invention, the diameter of the rubber rod is larger than the diameter of the metal rod.

[0010] As a preferred embodiment of this invention, the rubber rod is connected to the metal rod via a fixing nail.

[0011] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are:

[0012] This invention relates to a torsionable centrifugal bar for testing seat belt anchor points. Through a metal and rubber composite structure, it achieves precise transmission of test loads and adaptive backrest deformation. The backrest deformation follows the bar closely. Compared with rigid centrifugal bars, it eliminates the interference effect of rigid centrifugal bars on the seat structure, prevents the centrifugal bar from falling off during the test, and improves testing efficiency and accuracy. Attached Figure Description

[0013] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention. In the drawings:

[0014] Figure 1 This is the front view of this utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a perspective view of the present invention;

[0017] The reference numerals in the accompanying drawings include: rubber rod 1, metal rod 2, fixing block 3, connecting hole 4, fixing nail 11, and fixing hole 31. Detailed Implementation

[0018] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0022] Reference Figures 1 to 3 , Figure 1 This is the front view of this utility model. Figure 2 This is a side view of the present invention. Figure 3 This is a perspective view of the present invention. The present invention provides a torsionable centroidal bar for testing seat belt anchor points, comprising a rubber rod 1, a metal rod 2, a fixing block 3, and connecting holes 4. The two metal rods 2 are respectively connected to both ends of the rubber rod 1, preferably by fixing nails 11, that is, the rubber rod 1 is fixedly connected to the metal rod 2 around its ends by fixing nails 11. The fixing block 3 is disposed at one end of the metal rod 2 and is used to connect to the seat. The fixing block 3 is provided with multiple rows of fixing holes 31. The connecting holes 4 are disposed at the ends of the metal rod 2 and / or on the metal rod 2 and are used to connect a loading device. In one embodiment, the diameter of the rubber rod 1 is larger than the diameter of the metal rod 2.

[0023] The following will refer to Figures 1 to 3 The working principle of this utility model will be explained.

[0024] Metal rod 2 and rubber rod 1 are connected to form the main body of the centrifugal rod. Fixing block 3 is connected to the seat via self-tapping screws, and connecting hole 4 is connected to the loading device. During the test, the loading device drives the main body of the centrifugal rod to load the seat through connecting hole 4. When the seat back deforms, rubber rod 1 can deform accordingly following the deformation of the backrest. This utility model achieves accurate transmission of test load and adaptive backrest deformation through a metal and rubber composite structure. The backrest deformation following ability is strong. Compared with rigid centrifugal rods, it eliminates the interference effect of rigid centrifugal rods on the seat structure, prevents the centrifugal rod from falling off during the test, and improves the testing efficiency and accuracy.

[0025] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A twistable center of mass bar for seat belt anchor testing, characterized by, It includes a rubber rod body, a metal rod body connected to both ends of the rubber rod body, and a fixing block for connecting the seat and a connection hole for connecting the loading device.

2. A twistable center of mass bar for seat belt anchor testing according to claim 1, wherein, The fixing block has multiple rows of fixing holes.

3. A twistable center of mass bar for seat belt anchor testing according to claim 1, wherein, The connection hole is located at the end of the metal rod and / or on the metal rod.

4. A torsionable centroidal bar for testing seat belt anchor points according to claim 1, characterized in that, The diameter of the rubber rod is larger than that of the metal rod.

5. A torsionable centroidal bar for seat belt anchor point testing according to claim 1, characterized in that, The rubber rod is connected to the metal rod by fixing pins.