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Spool screen

A screen and scroll technology, applied in construction, door/window protection devices, building components, etc., can solve the problem of large screen stop position interval

Inactive Publication Date: 2005-09-21
METACO INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are various schemes for the clutch mechanism of this mechanism, but the distance between the screen stop positions in each scheme is relatively large, and it may not be able to fully meet the user's requirements.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0014] Hereinafter, the scroll screen of the present invention will be described in detail with reference to the accompanying drawings.

[0015] figure 1 (a) and (b) are respectively a sectional view and a side view of an embodiment of the scroll screen of the present invention.

[0016] E.g figure 1 As shown in (a) and (b), in the scroll screen of the present invention, a fixed shaft (3) is provided between the left and right pair of brackets (1), (2), and the fixed shaft (3) A reel (5) fixed to one end of the screen (4) can be rotatably arranged as the center. A driving device (7) provided with a coil spring (6) is built in the reel (5).

[0017] In the driving device (7), when the screen (4) is pulled out, the coil spring (6) twists when the reel (5) rotates forward, thereby generating a moment to reverse the reel (5). When the torque is released, the reel (5) reverses and automatically winds up the screen (4).

[0018] Specifically, in figure 1 In the reel screens sh...

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PUM

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Abstract

To set the stop positions of a screen more finely than before when it is drawn and wound. A clutch pawl 33 is erected on a centrifugal piece 16 at a portion brought into no contact with a brake drum 17. A clutch body 35 having a ratchet 34 to be meshed with the clutch pawl is connected to the brake unit body 14 of a brake unit 13.

Description

technical field [0001] The invention relates to a scroll screen. More specifically, the present invention relates to a scroll screen capable of accurately setting the stop position of the screen when the screen is pulled out and rolled up, compared with conventional ones. Background technique [0002] Scroll screens are used as blinds, partitions, projection screens, etc. The reel screen has a reel that can rotate forwards and backwards and a screen fixed on the reel at one end, and the screen can be pulled out and rolled up from the reel. A spring driving method, which is one of methods for pulling out and winding up a screen, is known. In this spring driving method, a driving device including a coil spring is incorporated in a reel. [0003] The principle is that when the screen is pulled out, the coil spring is twisted by the forward rotation of the reel, thereby generating a torque that makes the reel reverse, and the screen is automatically wound on the reel by releas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B9/80E06B9/90
Inventor 土田治渡边光晴福原佳生
Owner METACO INC