Bent shaft assembly for sunshade and bent shaft sunshade

Abstract

The invention provides a bent shaft assembly (1) for a sunshade; the shaft assembly (1) comprises a bent shaft (20); multiple sleeves (10) which sleeve on the bent shaft (20). Multiple first teeth (11) are installed on a first end of the sleeve and multiple second teeth (12) are installed on a second end of the sleeve; adjacent sleeves are mutually linked by the meshing between the multiple first teeth (11) and multiple second teeth (12); the first teeth (11) and the second teeth (12) are formed by crossing the wall of the first end and the second end of the sleeve (10). The invention also comprises a bent shaft sunshade comprising the above bent shaft assembly. By means of the bent shaft assembly, the intensity and matching precision can be increased, the friction and operation noise can be reduced; the sunshade can be used in application environment having larger stroke and curvature.

Description

technical field [0001] The invention relates to the field of sunshades, in particular to a bent shaft assembly for a sunshade and a bent shaft sunshade comprising the bent shaft assembly. Background technique [0002] In order to block the sun's rays, the skylights of cars, boats or sunrooms are usually equipped with sunshades or sunshades. For larger-sized sunroofs, such as panoramic sunroofs in cars, sunshades that can be rolled up and stored are widely used. In the stowed state, the curtain is wound on the shaft of the sunshade. However, in common designs of existing sunshades, the shaft of the sunshade is usually straight. As a result, such products take up more headspace when installed on skylights with curvature. [0003] In addition, in the prior art, there is also a shaft of a sunshade that is curved, which can reduce the head space occupied by the sunshade and improve user comfort. The bent shaft assembly of this product generally includes a bent shaft, a multi-...

AI Technical Summary

Problems solved by technology

However, in the teeth of this two-layer structure, the teeth are relatively thin and weak

Especially for a relatively long sunshade, the winding torque is large, and the connection strength of the sleeve may be insufficient, which may easily cause the teeth of the sleeve to break, etc.

At the same time, for a curved shaft with a large curvature, the included angle between two adjacent sleeves will be relatively large. In this way, the fit between the teeth of the sleeves will become worse, and the gap will become larger, which will easily cause larger gaps when the sleeve rotates. high friction and noise

Therefore, this two-layer tooth structure sleeve cannot adapt to the curved shaft with large curvature.

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