A mechanism that converts continuous rotational motion into intermittent rotation is adopted! The problem is solved by engraving a spiral groove on the stopper.
The spring mechanism is commonly used in self-closing sliding doors and allows for the adjustment of spring strength based on the weight of the door and user preferences. However, frequent malfunctions occurred due to user operations (over-winding or loosening the spring). To address this issue, our company adopted a Geneva mechanism in the spring adjustment section and carved a spiral groove into the stopper, thereby solving the problem. The user-friendly and highly durable spring mechanism has been well-received as a long-selling product. [Background and Challenges] - The spring mechanism is often used in self-closing sliding doors. - While the spring strength can be adjusted based on the weight of the door and user preferences, malfunctions frequently occurred due to user operations (over-winding or loosening the spring). - Previous general spring mechanisms lacked stoppers or indicators to prevent over-winding or loosening. *For more details, please refer to the PDF document or feel free to contact us.*
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**Concept and Mechanism Design** - The brainstorming mechanism design team has adopted the Geneva mechanism for the spring adjustment part, solving the problem by engraving a spiral groove on the stopper. - This mechanism uses the main shaft cam as the driving gear and the stopper as the driven gear, transmitting the rotation speed of the driving gear directly connected to the mainspring to the driven gear. - When the main shaft cam rotates once, the stopper rotates by one tooth. - A vertical elongated hole (indicator) and the spiral groove are created in the cover, allowing the stopper pin to convert the rotation angle of the stopper into vertical movement. - The stopper pin not only indicates the strength of the mainspring but also serves as a stopper to prevent overwinding and excessive loosening. *For more details, please refer to the PDF document or feel free to contact us.*
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For more details, please refer to the PDF document or feel free to contact us.
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SKB is a manufacturer based in Higashi-Osaka that specializes in "mechanisms = mechanical design." We design and manufacture special mechanisms and functional components primarily made of metal, continuing to create products that shape our customers' "wants."