一种按钮回弹结构
By using rubber posts instead of return springs in piano key-type buttons, the problems of noise and oil contamination during reset are solved, achieving a quiet and clean rebound effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
In existing reset structures for piano key-type buttons, the reset spring is prone to generating friction noise and requires lubrication, posing a risk of grease overflow and contaminating the surface.
A rubber column is used instead of a return spring. The high elasticity of the rubber column provides the restoring force, avoiding noise and eliminating the need for lubrication. The button's rebound structure is achieved through the design of the button, push rod, and rubber column.
It effectively eliminates friction noise during reset, avoids grease contamination of the surface, and improves performance and component lifespan.
Smart Images
Figure CN224519751U_ABST
Abstract
Claims
1. A button rebound structure, comprising a base (1), a plurality of button slots (2) evenly distributed on a housing (1), and a receiving slot (10) disposed on the base (1), characterized in that: The base (1) is provided with a number of buttons (3) arranged in sequence. Each button (3) is installed in the corresponding button slot (2). Each button (3) has a top rod (5) on both sides and the two top rods (5) are in contact with each other. The ends of adjacent buttons (3) that are close to each other are in contact with the same top rod (5). Each top rod (5) is placed in the corresponding receiving slot (10). Each top rod (5) has a rubber column (9) at the bottom. The rubber column (9) has a cylindrical structure. The two ends of the rubber column (9) are in contact with the bottom of the top rod (5) and the receiving slot (10) respectively. The top rod (5) includes a pressing part (51) with a frustum structure at the bottom. The receiving slot (10) has a countersunk groove structure and includes a deep groove for the pressing part (51) to extend into. The rubber column (9) is set in the deep groove of the receiving slot (10) and the rubber column (9) and the pressing part (51) are in contact in the deep groove of the receiving slot (10).
2. The button rebound structure of claim 1, wherein: The inner surface of the button slot (2) has a rotating shaft (6) protruding on both sides, and each button (3) has a groove on both sides that cooperates with the corresponding rotating shaft (6).
3. The button return structure of claim 1, wherein: The top of the push rod (5) has an arc structure, and each button (3) has a recessed reset slide (4) on the surface that contacts the top of the push rod (5). The cross-section of the reset slide (4) is a triangular structure with a rounded chamfer.
4. The button rebound structure of claim 1, wherein: The top rod (5) has outward protrusions of limiting parts (52) on both sides. The groove sidewall of the receiving groove (10) has two upward openings (11). The openings (11) are U-shaped. The limiting parts (52) are placed in the corresponding openings (11).
5. A button return structure according to claim 4, wherein: The bottom surface of the limiting part (52) is arc-shaped, and the bottom surface of the opening (11) is provided with a rounded chamfer.
6. The button return structure of claim 1, wherein: The base (1) has an integrally formed mounting plate (13) on both sides, and the mounting plate (13) has mounting holes (14).
7. The button rebound structure of claim 1, wherein: The base (1) has several limiting holes (7).