When powered by a damped constant force spring mounted on the spool, there are several key principles that influence the design of linear motion applications. These principles support robust and consistent performance of products in a variety of applications, including automotive and aircraft interiors, industrial machine components, and many other user interface applications.
The example components shown above will be cited as examples of the various design principles detailed below. This example assembly has a sliding drawer (shown in red) powered by a constant force spring mounted on a spool (spool in green; constant force spring shown in yellow) running within a mounting base (shown in grey), such as a central Console a car. A ratchet or door latch mechanism (not shown) can be implemented to allow the tray to be locked in place with a single press by the user. This example is a typical set of applications used in the automotive industry.
1. Preload spring
2. Spool – install constant force spring
The ideal fitting for a constant force spring on the spool should be tight enough to prevent the spring ring from sliding or spinning on the spool diameter. To ensure a good fit, Qianye Precision usually recommends increasing the spool diameter by 12%. For example, if the nominal spring ID is 1.00″, a 1.12″ spool diameter is recommended.
When dealing with the physical enclosure of the components inside the system, be sure to leave enough room for the natural movement of the springs. Not having enough space to limit this movement can result in noise and excessive friction within the system. In cases where the thickness and length combine to form a larger outer diameter (outer diameter), the outer diameter can be used in place of the inner diameter to ensure sufficient space.
3. Constant force spring
Qianye Precision provides standard and customized options to meet the various needs of customers. The image below shows two types of constant force springs from the many options we offer.
ほとんどの種類のばねでは、ばねが圧縮されてから弛緩すると、加えられる力はばねが伸びる距離に比例します。通常のばねとは異なり、定荷重ばねはこの規則に準拠していません。コンスタント フォース スプリングの物理的な設計により、その戻り力は一定のままです。したがって、コンスタント フォース スプリングは、一貫した反動を必要とする多くのアプリケーションで役立ちます。
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In this blog post, we will be discussing what constant force springs are, and what applications they are used for. We will also be discussing the different types of constant force springs, and how to select the right one for your application. A constant force spring is a type of spring that is designed to provide a constant amount of...
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可変力ばねは、POS または POP 業界、特にシェルフ プッシャーで非常に一般的です。可変力スプリングは、可変力を提供して、増加または減少する力の要件に正確に一致し、製品を水平方向に前方に推進します。適用範囲が広いため、これらのスプリングは、タバコ、化粧品、電子機器、および医療業界で見られます。では、なぜ可変力ばねを使用するのでしょうか...
Because there is no tension in the constant force spring that pushes the nail, naturally, no nail can be driven. The pushing device of the nail gun uses the constant force spring, because the constant force spring has the characteristic of keeping the constant force in the long stroke, and it can achieve a very high elasticity output in a...