Handrail unlocking mechanism

Abstract

The utility model discloses a handrail unlocking mechanism which comprises an unlocking button, a sliding rail, an upper base, a transmission mechanism, a clamping jaw, a lower base and a reset torsion spring. The clamping jaw is in a Z shape and comprises a hook part at the head and a pressing part at the tail, the two sides of the clamping jaw are rotationally connected with the lower base through rotating shafts, a reset torsion spring is arranged between the clamping jaw and the lower base, and the reset torsion spring is used for enabling the clamping jaw to reset after swinging backwards; a sliding rail is arranged in the upper base, and the unlocking button is arranged above the sliding rail and moves in the sliding rail; one end of the transmission mechanism is rotationally connected with the lower base, the other end of the transmission mechanism comprises an upper swing arm and a lower swing arm, the upper swing arm is located below the unlocking button, and the lower swing arm is pressed on the pressing part of the clamping jaw. According to the utility model, the unlocking button can be arranged at any angle, and the armrest of the auxiliary fascia console can be unlocked with smaller force.

Description

Technical Field

[0001] The utility model relates to an unlocking mechanism, in particular to an unlocking mechanism for an automobile armrest. Background Art

[0002] An armrest box is a fitting installed in the middle of an automobile seat, which enables a driver to place his / her arm during long-time driving, so that the arm can get effective rest and avoid soreness, numbness and stiffness. The armrest unlocking mechanism is an important part of automobile design. It is located on the automobile armrest and involves the opening and closing operations of the armrest, as well as the convenience and safety of the operations. The unlocking button part of the armrest unlocking mechanism is generally on the trim panel around the armrest. When a driver or a passenger needs to open the armrest box, pressing the unlocking button can open the armrest. The buttons of traditional unlocking mechanisms are generally arranged horizontally or vertically, and a relatively greater force is required to press the unlocking button to unlock the armrest. Content of the Utility Model

[0003] Purpose of the utility model: The purpose of the utility model is to provide an armrest unlocking mechanism to solve the problem that the buttons of traditional unlocking mechanisms are arranged horizontally or vertically, and a relatively greater force is required to press the unlocking button to unlock the armrest.

[0004] Technical solution: An armrest unlocking mechanism of the utility model includes an unlocking button, a slide rail, an upper base, a transmission mechanism, a claw, a lower base and a return torsion spring; the claw is Z-shaped and includes a hook part at the head and a pressing part at the tail. The two sides of the claw are rotationally connected to the lower base through a rotating shaft. A return torsion spring is arranged between the claw and the lower base, and the return torsion spring is used to reset the claw after it swings backward; a slide rail is arranged in the upper base, and the unlocking button is arranged above the slide rail and moves in the slide rail; one end of the transmission mechanism is rotationally connected to the lower base, and the other end includes an upper swing arm and a lower swing arm. The upper swing arm is located below the unlocking button, and the lower swing arm presses on the pressing part of the claw.

[0005] Further, a spring for resetting the unlocking button is arranged between the unlocking button and the slide rail.

[0006] Further, a limit baffle for restricting the rotation amplitude of the claw is arranged on the pressing part of the claw, and a limit baffle for restricting the rotation amplitude of the transmission mechanism is arranged at the end of the lower swing arm of the transmission mechanism.

[0007] Further, the contact surface between the upper swing arm and the unlocking button is a curved surface, and the contact surface between the lower swing arm and the pressing part of the claw is a curved surface.

[0008] Furthermore, the lower base is provided with a spring shaft, the return torsion spring is sleeved on the spring shaft, one end of the return torsion spring is hooked to the claw, and the other end of the return torsion spring is connected to the lower base.

[0009] Furthermore, the upper surface of the hook portion is provided with a convex arc surface.

[0010] Furthermore, the transmission mechanism is rotatably connected to the lower base through a triangular base.

[0011] Beneficial effects: Compared with the prior art, the present utility model has the following advantages:

[0012] 1. By providing a transmission mechanism, the unlocking button can be adjusted at any angle, so that it is not limited to horizontal or vertical arrangement, and the unlocking button can be arranged obliquely, meeting various distinctive shapes and making the automotive interior more characteristic;

[0013] 2. Compared with the straight-line movement of the transmission member pushed by an inclined plane, this mechanism can achieve the purpose of unlocking the armrest of the lower instrument panel with a smaller force, with simple operation and meeting the requirements of most people. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model.

[0015] Figure 2 is a schematic cross-sectional structural diagram of the transmission surface of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described below in conjunction with embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading this description, various equivalent modifications of this description by those skilled in the art all fall within the scope defined by the appended claims of this application.

[0017] As Figure 1-2As shown in the figure, the armrest unlocking mechanism of this embodiment includes an unlocking button 1, a slide rail 2, an upper base 3, a transmission mechanism 4, a claw 5, a lower base 6, and a return torsion spring 8. The claw 5 is Z-shaped and includes a hook portion 51 at the head and a pressing portion 51 at the tail. The hook portion 51 and the pressing portion 52 are connected by a neck. The hook portion 51 is used to hook the upper cover of the armrest. Specifically, the upper surface of the hook portion 51 is provided with a convex arc surface, which can achieve a better fixing effect. The claw 5 and the transmission mechanism 4 are both rotatably connected to the lower base 6. The projections of the rotation points of the claw 6 and the transmission mechanism 4 are both on the center line of the lower base 6. One end of the transmission mechanism 4 is provided with a transmission rotating shaft 43, and the transmission rotating shaft 43 is assembled in the triangular base 12 to make it rotatably connected to the lower base 6. The other end of the transmission mechanism 4 includes an upper swing arm 42 and a lower swing arm 41. The upper swing arm 42 is located below the unlocking button 1, and the lower swing arm 41 presses on the pressing portion 52 of the claw 5. In order to limit the swing range of the transmission mechanism 4, a limit baffle 10 is provided at the end of the lower swing arm 41 of the transmission mechanism 4.

[0018] A horizontally arranged rotating shaft sleeve 61 is provided on the lower base 6. Rotating shafts 7 are provided on the left and right sides of the turning point at the tail of the claw 5. The rotating shafts 7 are assembled in the rotating shaft sleeve 61 to form a rotational connection between the claw 5 and the lower base 6. When the pressing portion 52 of the claw 5 is pressed downward, the head of the claw 5 swings backward, causing its hook portion 51 to disengage from the upper cover of the armrest, and it is in the unlocked state. A return torsion spring 8 is provided between the claw 5 and the lower base 6. In a specific embodiment, the setting method is that a spring shaft 9 parallel to the rotating shaft sleeve 61 is provided behind the rotating shaft sleeve 61 on the lower base 6. The return torsion spring 8 is sleeved on the spring shaft 9. One end of the return torsion spring 8 abuts against the surface of the lower base 6. A groove 51 is provided between the hook portion 51 of the claw 5 and the position of the rotating shaft 7. The other end of the return torsion spring 8 is hooked in the groove 51. When the pressing portion 52 of the claw 5 is pressed downward by the lower swing arm 41 of the transmission mechanism 4 and the hook portion 51 swings backward, the return torsion spring 8 is twisted to generate elastic force. When the downward pressure on the pressing portion 52 of the claw 5 is removed, the elastic force generated by the twisting of the return torsion spring 8 causes the hook portion 51 of the claw 5 to swing forward and return to the locked position. In order to prevent the return torsion spring 8 from causing the claw 5 to reset beyond the limited position, a limit baffle 10 is provided on the pressing portion 52 of the claw 5.

[0019] In a specific embodiment, the upper base 3 is inclined at an angle above the lower base 6. A slide rail 2 is provided in the upper base 3. The unlocking button 1 is arranged above the slide rail 2 and slides in the slide rail 2. A spring 11 for resetting the unlocking button 1 is arranged between the unlocking button 1 and the slide rail 2. The upper swing arm 42 end of the transmission mechanism 4 is arranged below the unlocking button 1. When the unlocking button 1 is pressed, the upper swing arm 42 of the transmission mechanism 4 is stressed and rotates through the transmission rotating shaft 43, so that the lower swing arm 41 presses down the pressing portion 52 of the claw 5. Thus, the linear motion of the unlocking button 1 when it is pressed down is converted into a rotational motion through the transmission mechanism 4, realizing the arrangement of the unlocking button at any angle. In a specific embodiment, the contact surfaces between the upper swing arm 42 of the transmission mechanism 4 and the unlocking button 1 and between the lower swing arm 41 and the pressing portion 52 are set as curved surfaces, so that the contact surfaces between the unlocking button 1 and the upper swing arm 42 of the transmission mechanism 4 and between the lower swing arm 41 and the pressing portion 52 are always vertically stressed during the process of pressing the unlocking button 1, further reducing the force used when pressing the unlocking button 1 and improving the comfort level.

[0020] The working principle of the armrest unlocking mechanism is as follows:

[0021] 1. In the closed state, the hook portion 51 of the claw hooks the upper cover of the armrest, and the armrest is in the closed state.

[0022] 2. When the unlocking button 1 is pressed in the direction of arrow a, the unlocking button 1 slides in the slide rail 2. In a specific embodiment, the sliding distance d is 6 mm. The linear sliding motion is converted into a rotational motion through the transmission mechanism 4. The transmission mechanism 4 presses the pressing portion 52 at the tail of the claw 5, causing the claw 5 to rotate accordingly. When the claw 5 rotates a certain angle, the hook portion 51 of the claw 5 disengages from the upper cover of the armrest, and at this time, the armrest opens.

[0023] 3. After releasing the unlocking button 1, the spring 11 resets the unlocking button 1; the reset torsion spring 8 resets the swinging-back claw 5, and the hook portion 51 of the claw 5 hooks the upper cover of the armrest to realize the closing of the armrest.

Claims

1. An armrest unlocking mechanism, characterized in that, It includes an unlocking button, a slide rail, an upper base, a transmission mechanism, a claw, a lower base, and a return torsion spring; the claw is Z-shaped, including a hook portion at the head and a pressing portion at the tail, both sides of the claw are rotatably connected to the lower base through a rotating shaft, a return torsion spring is arranged between the claw and the lower base, and the return torsion spring is used to reset the claw after it swings backward; a slide rail is arranged in the upper base, the unlocking button is arranged above the slide rail and moves in the slide rail; one end of the transmission mechanism is rotatably connected to the lower base, and the other end includes an upper swing arm and a lower swing arm, the upper swing arm is located below the unlocking button, and the lower swing arm presses on the pressing portion of the claw.

2. The armrest unlocking mechanism according to claim 1, characterized in that, A spring for resetting the unlocking button is arranged between the unlocking button and the slide rail.

3. The armrest unlocking mechanism according to claim 1, characterized in that A limit baffle for restricting the rotation amplitude of the claw is arranged on the pressing portion of the claw, and a limit baffle for restricting the rotation amplitude of the transmission mechanism is arranged at the end of the lower swing arm of the transmission mechanism.

4. The armrest unlocking mechanism according to claim 1, wherein, The contact surface between the upper swing arm and the unlocking button is a curved surface, and the contact surface between the lower swing arm and the pressing portion of the claw is a curved surface.

5. The armrest unlocking mechanism according to claim 1, characterized in that, The lower base is provided with a spring shaft, the return torsion spring is sleeved on the spring shaft, one end of the return torsion spring is hooked on the claw, and the other end of the return torsion spring is connected to the lower base.

6. The armrest unlocking mechanism according to claim 1, wherein, The upper surface of the hook portion is provided with a convex arc surface.

7. The armrest unlocking mechanism according to claim 1, characterized in that, The transmission mechanism is rotatably connected to the lower base through a triangular base.

Images