An unlocking rod and a car seat slide rail

Abstract

This application relates to the field of automotive seat component technology, providing an unlocking lever and an automotive seat slide rail, including a lever body with a U-shaped structure and notches at both ends. By providing notches on the lever body, this application allows for stress release when the upper slide rail experiences a momentary sliding tendency relative to the lower slide rail, preventing excessively high overall stress levels within the unlocking lever and thus extending its service life.

Description

Technical Field

[0001] This application relates to the field of automotive seat component technology, and more specifically, to an unlocking lever and an automotive seat slide rail. Background Technology

[0002] Car seat rails are important functional components of car seats. They are installed at the bottom of the car seat to adjust the fore-aft position of the seat and enhance the comfort of the car seat. They are usually a pair, including inner and outer rail assemblies. Each rail assembly includes an upper rail and a lower rail. The lower rail is fixed to the vehicle body, while the upper rail and lower rail can slide together and connect to the seat. Car seat rails are also equipped with locking and unlocking mechanisms.

[0003] When braking, the vehicle decelerates, and the seats and passengers continue to move forward due to inertia. This causes the upper slide rail to slip momentarily relative to the lower slide rail. The inertial displacement of the upper slide rail is transmitted to the unlocking lever through the locking mechanism, creating an impact force. Repeated impacts cause fatigue cracks in the stress concentration area, reducing the service life of the unlocking lever. Damage to the unlocking lever will cause the seat adjustment function to fail. Utility Model Content

[0004] The purpose of this application is to provide an unlocking lever and a car seat slide rail, modifying the structure of the unlocking lever to extend its service life.

[0005] This application provides an unlocking lever and a car seat slide rail, adopting the following technical solutions:

[0006] An unlocking lever includes a lever body, which has a U-shaped structure and notches at both ends.

[0007] Preferably, the notches at both ends are rotated 180° symmetrically.

[0008] Preferably, a first mounting hole is provided at each end of the rod, and the first mounting hole is located above the notch.

[0009] Preferably, the lower end of the rod is provided with a second mounting hole and a third mounting hole.

[0010] Preferably, a stop is provided at the lower end of the rod.

[0011] Preferably, the stop is arranged close to the second mounting hole.

[0012] Preferably, the upper left end of the rod is higher than the upper right end of the rod.

[0013] Preferably, the rod is made of metal.

[0014] A car seat slide rail includes two parallel lower slide rails, an upper slide rail disposed on the lower slide rails, a locking mechanism disposed between the lower slide rails and the upper slide rails, an unlocking lever disposed between the lower slide rails and the upper slide rails, and a handle disposed between the two unlocking levers. The unlocking lever is connected to the locking mechanism and is used for unlocking. The unlocking lever is provided with a torsion spring.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] This application provides a notch on the rod body. When the upper slide rail tends to slide instantaneously relative to the lower slide rail, the notch is used to release stress, thereby preventing excessively high overall stress levels inside the unlocking rod and extending its service life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the unlocking lever.

[0019] Figure 2 for Figure 1 A structural diagram from another perspective;

[0020] Figure 3 for Figure 1 Top view;

[0021] Figure 4 This is a schematic diagram of the structure of a car seat slide rail.

[0022] In the diagram: 1. Rod; 2. Notch; 3. First mounting hole; 4. Second mounting hole; 5. Third mounting hole; 6. Stop; 7. Lower slide rail; 8. Upper slide rail; 9. Locking mechanism; 10. Handle; 11. Torsion spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Example

[0030] like Figure 1-3 As shown, this application embodiment provides an unlocking rod, including a rod body 1. The rod body 1 has a U-shaped structure, and notches 2 are provided at both ends of the rod body 1. When the upper slide rail 8 has an instantaneous sliding tendency relative to the lower slide rail 7, the notches 2 are used to release stress, so as to avoid excessively high overall stress levels inside the unlocking rod, thereby extending the service life of the unlocking rod.

[0031] In this embodiment, to avoid stress superposition that may occur when the notches 2 are set at the same end and to reduce the risk of fracture, the notches 2 at both ends are rotated 180° symmetrically.

[0032] In this embodiment, the rod body 1 is provided with first mounting holes 3 at both ends. The first mounting holes 3 are located above the notch 2. The first mounting holes 3 facilitate the installation of the torsion spring 11.

[0033] In this embodiment, the lower end of the rod 1 is provided with a second mounting hole 4 and a third mounting hole 5. The second mounting hole 4 and the third mounting hole 5 can facilitate the fixing of the lower end of the torsion spring 11 and ensure the performance of the torsion spring 11.

[0034] In this embodiment, a stop block 6 is provided at the lower end of the rod 1. When the handle 10 is installed on the unlocking rod, the stop block 6 is used to limit the handle 10.

[0035] In this embodiment, the stop block 6 is arranged close to the second mounting hole 4. A groove is made on the rod body 1 near the second mounting hole 4, and then the stop block 6 is formed by bending it, which makes the stop block 6 easy to manufacture.

[0036] In this embodiment, the upper left end of the rod 1 is higher than the upper right end of the rod 1. The left side of the rod 1 is used to connect the handle 10, and the right side of the rod 1 is used to connect the locking mechanism 9. This arrangement ensures that when the upper slide rail 8 has an instantaneous sliding tendency relative to the lower slide rail 7, it only acts on the right side of the rod 1, thus ensuring the effectiveness of the notch 2.

[0037] In this embodiment, the rod 1 is made of metal. Compared with the existing plastic unlocking rods on the market, the metal unlocking rod has significantly improved strength, thus improving the stability of the unlocking rod and the stability of the slide rail unlocking process.

[0038] like Figure 4 As shown, this application also provides an automotive seat slide rail, including two parallel lower slide rails 7, an upper slide rail 8 disposed on the lower slide rails 7, a locking mechanism 9 disposed between the lower slide rails 7 and the upper slide rail 8, an unlocking lever disposed between the lower slide rails 7 and the upper slide rail 8, and a handle 10 disposed between the two unlocking levers. The unlocking lever is connected to the locking mechanism 9 and is used for unlocking. A torsion spring 11 is disposed on the unlocking lever. The locking method of the locking mechanism 9 and how the unlocking lever unlocks are existing technologies, so they will not be described in detail here.

[0039] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An unlock lever characterized by: It includes a rod body, which has a U-shaped structure and notches at both ends.

2. The unlock lever according to claim 1, characterized by: The notches at both ends are rotated 180° to be symmetrical.

3. The unlock lever of claim 1, wherein: The rod has a first mounting hole at each end, and the first mounting hole is located above the notch.

4. The unlock lever of claim 3, wherein: The lower end of the rod is provided with a second mounting hole and a third mounting hole.

5. The unlock lever of claim 4, wherein: A stop is provided at the lower end of the rod.

6. The unlock lever of claim 5, wherein: The stop block is positioned close to the second mounting hole.

7. The unlock lever of claim 1, wherein: The upper left end of the rod is higher than the upper right end of the rod.

8. The unlock lever of claim 1, wherein: The rod is made of metal.

9. A slide rail for a car seat, using the unlocking lever according to any one of claims 1 to 8, characterized in that: It includes two parallel lower slide rails, an upper slide rail on the lower slide rails, a locking mechanism between the lower slide rails and the upper slide rails, an unlocking rod between the lower slide rails and the upper slide rails, and a handle between the two unlocking rods. The unlocking rod is connected to the locking mechanism and is used for unlocking. The unlocking rod is provided with a torsion spring.

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