Fatigue endurance test tool for side wings of automobile seat headrest
By designing a fatigue durability test tool for the wings of the headrest of the car seat, using a clamp structure and a multi-link mechanism combining cylinders and linear guides, simultaneous tests on the left and right flanges are achieved, solving the problems of long test time and high cost in traditional tests, improving the test efficiency and ensuring the feasibility of the test results.
Patent Information
- Application Number
- CN202422139325.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-09-02
Smart Images
Figure CN222837943U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile seats, in particular to a fatigue durability test tool for a side wing of a headrest of an automobile seat. Background Art
[0002] The seat headrest is an important component that affects the driving comfort and safety of the car seat. As people's requirements for car comfort continue to increase, the demand for headrest functions by drivers and passengers is also increasing. When drivers and passengers sleep on car seats, since the neck muscles are in a relaxed state after entering the sleep state, they generally need to lean their heads against the side supports. Therefore, existing car headrests are usually set as sleeping headrests, that is, headrest side wings are set on both sides of the headrest frame to maximize the comfort requirements of passengers.
[0003] In the automotive industry, fatigue damage is the main cause of failure of most key components. Fatigue durability, as one of the core indicators to measure vehicle performance, not only directly affects the safety, reliability and economy of the vehicle, but also has a far-reaching impact on the brand image and market reputation of the vehicle. Therefore, both automobile manufacturers and consumers have paid unprecedented attention to this performance indicator. Especially for the seat headrest, which is a component that directly contacts the driver, the importance of its fatigue durability performance is self-evident. The traditional automobile seat headrest side wing fatigue durability test device uses a robotic arm to implement the seat headrest side wing fatigue durability test. Since the left and right wings of the headrest are tested separately, the time cycle is long and the cost is high. Utility Model Content
[0004] In view of the problems existing in the above-mentioned prior art, the utility model aims to provide a fatigue durability test tool for the side wings of a car seat headrest, which can simultaneously perform fatigue durability tests on the left and right wings of the seat headrest, ensuring that its test actuation mode is consistent with the normal operating habits of the passengers, thereby ensuring the feasibility of the test results.
[0005] In order to achieve the above-mentioned purpose, the utility model proposes a fatigue durability test tool for the side wings of a car seat headrest, comprising a cylinder and a linear guide extending forward and backward, a transverse bracket being slidably connected to the linear guide, the left and right ends of the transverse bracket are hinged with connecting rods, the other ends of the two connecting rods are hinged with splints, the transverse bracket, the two splints and the two connecting rods are combined to form a clamp-shaped structure, the splints at both ends of the clamp-shaped structure are respectively used to connect with the left and right wings of the headrest to form a multi-link mechanism, the piston end of the cylinder is connected to the transverse bracket, and the cylinder can drive the transverse bracket to slide forward and backward along the linear guide.
[0006] In the above scheme: the linear guide rail is provided with a front stop point and a rear stop point for limiting the forward and backward sliding stroke of the transverse bracket, thereby limiting the flip angle of the splint, and further limiting the folding angle of the left and right wings of the headrest. The front and rear stop points of the linear guide rail can be adjusted to control the running stroke of the left and right wings of the headrest, that is, the utility model can be applied to fatigue endurance tests of different headrest wings, which is conducive to saving the cost of the test.
[0007] In the above scheme: a transverse connecting plate is provided upwardly at the front end of the splint, a longitudinal connecting plate is provided forwardly at the outer end of the transverse connecting plate, both the transverse connecting plate and the longitudinal connecting plate are provided with long holes along their length direction, the long holes on the transverse connecting plate are provided with self-tapping screws, the self-tapping screws are used to lock the transverse connecting plate on the side of the corresponding side wing of the headrest, the long holes on the longitudinal connecting plate are provided with latch bolts, the latch bolts are equipped with nuts, the latch bolts are locked in the corresponding long holes through the nuts, and are used to fit and abut against the front of the corresponding side wing of the headrest. The self-tapping screws are used to drill into the side wing of the headrest for fixed connection, and the latch bolts are used to limit the front end surface of the side wing of the headrest; the self-tapping screws and latch bolts can be adjusted along the corresponding long holes before installation and locking.
[0008] In the above scheme: the transverse bracket is a long strip structure which is narrow at both sides and wide in the middle, and a weight-reducing hole which is consistent with the shape of the transverse bracket is provided in the middle of the transverse bracket, and the weight-reducing hole plays a role in weight reduction.
[0009] The beneficial effects of the utility model are as follows: a clamp-shaped structure is formed by combining a transverse bracket, two clamping plates and two connecting rods, the clamp-shaped structure has two end clamping plates connected to the left and right wings of the headrest respectively, the transverse bracket of the clamp-shaped structure is connected to the cylinder, and the cylinder can drive the clamp-shaped structure to move when it is extended and retracted forward and backward, thereby driving the left and right wings of the headrest to fold and complete the fatigue durability test. In short, the utility model can simultaneously perform fatigue durability tests on the left and right wings of the seat headrest, improve work efficiency, and ensure that its test actuation mode is consistent with the normal occupant's operating habits, thereby ensuring the feasibility of the test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0011] like Figure 1 As shown, a fatigue durability test fixture for the side wings of a car seat headrest is mainly composed of a cylinder 1 and a linear guide rail 2 extending forward and backward. A transverse bracket 3 is slidably connected to the linear guide rail 2, and connecting rods 4 are hinged at both ends of the transverse bracket 3, and clamps 5 are hinged at the other ends of the two connecting rods 4. The transverse bracket 3, the two clamps 5 and the two connecting rods 4 are combined to form a clamp-shaped structure, and the clamps 5 at both ends of the clamp-shaped structure are respectively used to connect with the left and right wings of the headrest to form a multi-link mechanism.
[0012] The piston end of the cylinder 1 is connected to the transverse bracket 3, and the cylinder 1 can drive the transverse bracket 3 to slide forward and backward along the linear guide rail 2.
[0013] Preferably, the linear guide rail 2 is provided with a front stop point and a rear stop point for limiting the forward and backward sliding stroke of the transverse bracket 3, thereby limiting the flip angle of the clamping plate 5, and further limiting the folding angle of the left and right wings of the headrest. The front and rear stop points of the linear guide rail 2 can be adjusted to control the running stroke of the left and right wings of the headrest, that is, the utility model can be applied to fatigue endurance tests of different headrest wings, which is conducive to saving the cost of the test.
[0014] Preferably, a transverse connecting plate 6 is provided at the front end of the clamping plate 5, and a longitudinal connecting plate 7 is provided at the outer end of the transverse connecting plate 6. Both the transverse connecting plate 6 and the longitudinal connecting plate 7 are provided with long holes along their length direction. The long holes on the transverse connecting plate 6 are provided with self-tapping screws 8. The self-tapping screws 8 are used to lock the transverse connecting plate 6 on the side of the corresponding side wing of the headrest. The long holes on the longitudinal connecting plate 7 are provided with latch bolts 9. The latch bolts 9 are equipped with nuts 10. The latch bolts 9 are locked in the corresponding long holes through the nuts 10 and are used to fit and abut against the front of the corresponding side wing of the headrest. The self-tapping screws 8 are used to drill into the side wing of the headrest for fixed connection, and the latch bolts 9 are used to limit the front end surface of the side wing of the headrest; the self-tapping screws 8 and the latch bolts 9 can be adjusted along the corresponding long holes before installation and locking.
[0015] Preferably, the transverse bracket 3 is a long strip structure that is narrow at both sides and wide in the middle, and a weight-reducing hole having the same shape as the transverse bracket 3 is provided in the middle of the transverse bracket 3, and the weight-reducing hole plays a role in weight reduction.
Claims
1. A vehicle seat headrest side wing fatigue durability test tool, characterized by: The invention comprises a cylinder (1) and a linear guide rail (2) extending forward and backward, wherein a transverse bracket (3) is slidably connected to the linear guide rail (2), and the left and right ends of the transverse bracket (3) are both hinged with connecting rods (4), and the other ends of the two connecting rods (4) are both hinged with clamps (5), and the transverse bracket (3), the two clamps (5) and the two connecting rods (4) are combined to form a clamp-shaped structure, and the clamps (5) at both ends of the clamp-shaped structure are respectively used to connect with the left and right wings of the headrest to form a multi-link mechanism, and the piston end of the cylinder (1) is connected to the transverse bracket (3), and the cylinder (1) can drive the transverse bracket (3) to slide forward and backward along the linear guide rail (2).
2. The vehicle seat headrest side wing fatigue durability test tool according to claim 1, characterized in that: The linear guide rail (2) is provided with a front stop point and a rear stop point for limiting the forward and backward sliding travel of the transverse bracket (3), thereby limiting the flipping angle of the clamping plate (5), and further limiting the folding angle of the left and right wings of the headrest.
3. The vehicle seat headrest side wing fatigue durability test tool according to claim 1, characterized in that: A transverse connecting plate (6) is upwardly provided at the front end of the clamping plate (5), and a longitudinal connecting plate (7) is forwardly provided at the outer end of the transverse connecting plate (6). Both the transverse connecting plate (6) and the longitudinal connecting plate (7) are provided with elongated holes along their length directions. Self-tapping screws (8) are provided in the elongated holes on the transverse connecting plate (6). The self-tapping screws (8) are used to lock the transverse connecting plate (6) on the side of the corresponding side wing of the headrest. A latch bolt (9) is provided in the elongated holes on the longitudinal connecting plate (7). A nut (10) is provided on the latch bolt (9). The latch bolt (9) is locked in the corresponding elongated hole by the nut (10) and is used to fit and abut against the front side of the corresponding side wing of the headrest.
4. The vehicle seat headrest side wing fatigue durability test tool according to claim 1, characterized in that: The transverse bracket (3) is a long strip structure that is narrow at both sides and wide in the middle, and a weight-reducing hole having the same shape as the transverse bracket (3) is provided in the middle of the transverse bracket (3).