Once upon a time, did you have a dream that one day you could not tie your shoes by yourself? A kind of shoes with automatic shoelace has been realized now! The biggest highlight of automatic shoes is that users do not need to bend down to tie shoes. Through the built-in sensor in the shoes, it can even automatically adjust the tightness according to the movement in real time.
The automatic shoelace system adopts a power spring shoelace engine. The power spring shoelace engine 400 can include a housing 405 (including a base 406 and a cover 408), a motor 410, a shaft 415, a spring mandrel 420, a power spring 430, a clutch 435, a lever 440, a coupling (spool mandrel) 445, a coupling bearing 450, a spool 460, a driven gear 465, a drive gear 470, a spring mandrel bearing 475, and a driven gear bearing 480.
The power spring lacing engine can be driven by a motor to rotate the power spring to store energy in the power spring. During a shoelace event, the power spring can selectively and controllably release the stored energy to the coupling to rotate the spool, and between shoelace events, the power spring can rotate to store energy. The power spring system can use a small number of small parts to provide a compact, quiet and cost-effective shoelace engine.
The power spring is divided into natural power spring and pre force power spring according to its relaxed shape. In contrast, pre tensioned power springs can store 25% to 55% more torque and provide more effective turns.
The power spring can be assembled into the customer’s housing for immediate assembly, or a retaining ring is provided to transfer the spring to the customer’s housing. The torque and total number of turns of power spring are the most important output requirements in the design of power spring. The performance of the power spring depends on the size of the spring material (thickness, width and length) and the available space (shell and spindle diameter).
Qianye precision power spring is made of 301 high-strength stainless steel. Other materials can be used according to the requirements of customized applications. Its main feature is to provide high torque normal residual stress per unit deformation.
Shenzhen Qianye Precision Metal Co., Ltd. is a global spring manufacturer with more than 20 years of spring manufacturing experience. As a professional spring supplier, we can provide all kinds of spring springs, as well as the application design and solutions of all kinds of springs. We sincerely suggest that customers obtain consulting services from our R&D engineers at the initial stage of product introduction and development. Assist in product design, development and proofing according to your needs, so that your products can find the best solution to meet your application needs.
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![[Qianye precision]Spring on motor car curtain](https://wp-static-chuangli.oss-us-west-1.aliyuncs.com/qianyespring/uploads/2022/09/f3ccdd27d2000e3f9255a7e3e2c48800-22.jpg "[Qianye precision]Spring on motor car curtain")
