Curtain body braking mechanism for cordless curtains

A brake mechanism, no pull rope technology, applied in windows/doors, building components, building structures, etc., can solve problems affecting the smoothness of curtains, unsatisfactory accuracy of one-way tensioning mechanisms, etc.

Active Publication Date: 2018-03-23
陈金福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this known patent, the actuation accuracy of the one-way tensioning mechanism is not ideal, which will inevitably affect the smoothness of the curtain in the unfolding and retracting process.

Method used

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  • Curtain body braking mechanism for cordless curtains
  • Curtain body braking mechanism for cordless curtains
  • Curtain body braking mechanism for cordless curtains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Please see first Figure 5 , the curtain braking mechanism 12 of the present invention is mainly used in conjunction with a cordless curtain 10. The cordless curtain 10 shown in the figure includes an upper beam 14, a lower beam 16, and an upper beam 14 and a lower beam 16. The curtain body 18 between. see again figure 1 and figure 2 , The curtain braking mechanism 12 of the present invention includes a retracting unit 20 , two one-way clutch units 30 , and two pairs of transmission ropes 40 .

[0018] like figure 1 and figure 2 As shown, the take-up unit 20 has a base 21 , two coil spring wheels 22 , a coil spring 23 , and two rope take-up wheels 24 . The base 21 has a top plate 212 and a bottom plate 214; the coil spring wheel 22 is rotatably arranged on the base 21 and engages with each other; the two ends of the coil spring 23 are respectively connected to the coil spring wheel 22, so that the two coil spring wheels 22 can be rotated synchronously by the coi...

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PUM

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Abstract

A curtain body braking mechanism for cordless curtains, which mainly uses a one-way clutch unit to control the movement of a transmission rope. The one-way clutch unit has a wheel shaft seat, a clutch wheel shaft, a clutch wheel and three planetary gears. The clutch wheel shaft is fixed on the wheel shaft seat and has three brake blocks spaced apart from each other. A rolling groove is formed between each of the brake blocks. The clutch wheel can be sleeved on the clutch wheel shaft in a rolling manner and has an inner ring gear. Surrounding the two brake pads, the planetary gear is rotatably arranged in the rolling groove of the clutch wheel shaft and meshes with the inner ring gear of the clutch wheel, so that the planetary gear can be driven by the inner ring gear of the clutch wheel and The brake blocks of the clutch axle are engaged or separated from each other, so that when the planetary gear is engaged with the brake blocks, the transmission rope cannot be stretched to complete the positioning of the curtain body.

Description

technical field [0001] The invention relates to a cordless curtain, in particular to a curtain braking mechanism for a cordless curtain. Background technique [0002] General curtains can be divided into transmission rope type and no transmission rope type in terms of structure. Among them, the transmission rope type curtain mainly uses a transmission rope to drive the curtain body to expand or close, while the non transmission rope type curtain uses a transmission rope to drive the curtain body to expand or close. The hand exerts pull-down or push-up force on the lower beam, so that the curtain body can achieve the effect of unfolding or retracting. [0003] As far as the known technology of cordless curtains is concerned, such as U.S. Patent No. 7,025,107 uses a one-way tensioning mechanism to control the actuation of the first and second drive cords. When the curtain is unfolding, the one-way tension The mechanism will be driven to the disengaged position by the first an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B9/322
Inventor 陈柏宇
Owner 陈金福
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