Roller reducer for curtains

Abstract

A curtain rolling reducer, comprising: a rotating unit that can rotate with a reel of the curtain, a fixed unit that is sleeved with the rotating unit, a clutch unit installed in the rotating unit, and a can A resistance unit that increases resistance when the rotating unit rotates, the resistance unit is connected to the rotating unit and the fixed unit. In addition to slowing down the reeling speed of the reel, the present invention can also make the rewinding reducer suitable for modular production, and improve the ability of the curtain to change the rewinding speed. Ease of assembly when resisting.

Description

technical field [0001] The invention relates to a speed reducer, in particular to a curtain retraction speed reducer capable of slowing down the curtain retraction speed. Background technique [0002] refer to figure 1 , 2 , 3, is the No. I439601 invention patent of China Taiwan certificate number, and this invention patent discloses a kind of control mechanism 1 that is installed in an upper rail seat 21 of a curtain 2, and this control mechanism 1 can provide a branch of this curtain 2 The resistance when the drive shaft 22 rotates slows down the speed of its retraction. It mainly includes: a housing 11, an end cover 13 combined with the housing 11 and jointly defining a main chamber 12, a sleeve interlocking with the drive shaft 22 and located in the main chamber 12 14, and a clutch unit 10, the clutch unit 10 includes a coupling piece 15 that is sheathed around the sleeve 14, a retraction spring 16, and a pivot element 17. [0003] The end cap 13 has several first pr...

AI Technical Summary

Problems solved by technology

[0006] Although the aforementioned invention patent can achieve the purpose of slowing down the rotation speed of the rotating shaft 22 through the clutch unit 10, the elastic force of the retracting spring 16 determines the resistance of the control mechanism 1. Therefore, when the curtain 2 needs a large resistance , it is necessary to use a retracting spring 16 with a larger elastic force. On the contrary, if a smaller resistance is required, it is also necessary to replace a retracting spring 16 with a smaller elastic force. That is to say, the control mechanism 1 designed in the aforementioned invention patent Although the retracting speed of the curtain 2 can be slowed down, it needs to be manufactured according to the curtain 2 with different specifications and weights during production. Not only can it not be modularized during manufacture, but it is also troublesome to assemble.

Images