JP2002081279A - Blind - Google Patents

Abstract

PROBLEM TO BE SOLVED: To design a blind having a shaft 2 for winding up a blind fabric so as to quickly install the blind in a window and to user, for example, a triangular blind for fairly complicated light shielding by a compact structure for preassembling most part in a factory, enabling the blind having the shaft energized in the winding-up direction by a torsion spring 4 to be driven by an electric motor in place of a conventional method. SOLUTION: The shaft 2 for winding up the blind fabric is arranged in a casing 1, and is supported in a first face end cover 11 of the casing 1 with one tail end part 3 of the shaft. The torsion spring 4 is arranged inside a first end part of the shaft 2. The shaft 2 is supported via bearing journals 13 and 23 extending from a face end cover 17 in an area of a second tail end part 12 positioned on the opposite side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sunshade provided with a fabric shaft (rotary shaft) for winding up a shade fabric, and the fabric shaft is attached by a torsion spring in a winding direction. It is being rushed. This type of shade is also referred to as a roll-up blind (roll blind). The awning is basically fed out manually, driven by a spring and automatically wound up.

[0002]

On the basis of this, it is the object underlying the present invention that a shade of this kind can be driven by an electric motor instead of the conventional method, and is compact and maximal. The factory pre-assembled construction allows the awning to be quickly mounted on the window and designed for fairly complex shading, for example the use of a triangular awning That is.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a cloth shaft is disposed in a casing, and a first shaft of the casing is provided.
The face end cover is supported by one end of the fabric shaft, a torsion spring is disposed inside the first end of the fabric shaft, and a second end region located on the opposite side. Is solved by the fact that the cloth shaft is supported via a bearing journal extending from the face end cover. In particular, it is conceivable that the bearing journal can be detachably screwed inside the face end cover.

[0004] This arrangement is itself one of the preferred embodiments of a mechanical hoisting blind and is known per se.

In a further embodiment of the invention, it is further envisaged that the bearing journal is formed from the drive shaft of the electric motor or, alternatively, an extension of the drive shaft, and that the rope wheel is connected to the drive shaft.

This embodiment makes it possible, on the one hand, to realize both manual and prime mover drive, using the same basic structure. On the other hand, among others, deflection rollers
It is possible to drive the towing ropes acting on the outer free end of the awning via the troller via a rope wheel, with the result that even in complex shading systems, Uniform traction and a specific payout movement are achieved.

It is advantageous if the rope wheel is arranged in the end region of the fabric shaft and is formed in one piece with the bearing tube (as an integral part). The fabric shaft is supported via a bearing ring on the bearing tube.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings. FIG. 1 shows a shade comprising a casing 1 provided with a fabric shaft 2 for winding up a shade (not shown).

Inside the fabric shaft 2, a torsion spring 4 is disposed at the end 3 on the left side in the figure, and one end 5 of the spring is fixed to a shaft 6, and the torsion spring 4 is accommodated thereon. .
The shaft 6 penetrates the bearing ring 7 and the drive bearing ring 8, and the spring 4 acts on the fabric shaft 2 via the drive bearing ring 8 and the spring protrusion 9, so that the drawn out shade is drawn in the drawing direction. Energize. The outer end 10 of the shaft 6 is supported on a face end cover 11.

The end portion 12 on the opposite side (right side in the figure) of the cloth shaft 2
Is provided with a bearing journal 13. The fabric shaft 2 is supported on the journal via bearing rings 14, 15 arranged at a distance from one another. Bearing ring 1
5 is in contact with a radially protruding ring flange 16 of the bearing journal 13. On the other hand, bearing journal 13
Are screwed to the face end cover 17 by screws 18.

In this embodiment, the awning can be operated manually as usual. That is, the awning is fed out and fixed against the force of the torsion spring 4, and is pulled in and wound up by the action of the torsion spring 4.

FIG. 2 shows a structure similar to that of FIG. 1, but the bearing journal 13 has been replaced by a prime mover 19 having an electrical connection 20. The rope wheel 21 is connected to a bearing tube 22, which is connected to the bearing ring 14,
15 is supported. According to this, the bearing ring 1
Similarly, the cloth shaft 2 located outside of the bearing tube 2
2 is supported. On the other hand, the bearing tube 22 is
9 on the drive shaft 23.

A rope or the like is wound around the rope wheel 21. The outer end of the rope is tied to a front rail (drop rail) fixed to the outer rim of the awning. Thus, the unfolding movement of the fabric shaft 2 during unwinding of the awning cloth, in conjunction with the appropriate deflecting device for the rope, causes the rope to be wound up on the rope wheel 21 at the outer end of the awning cloth. Accompanyed by the acting tension.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a sunshade without a prime mover according to the present invention.

FIG. 2 is a longitudinal sectional view corresponding to FIG. 1 and including a motor.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 casing 2 fabric shaft 3, 12 end portion of fabric shaft 4 torsion spring 7, 14, 15 bearing ring 11, 17 face end cover 13, 23 bearing journal 19 motor 21 rope wheel

Claims (5)

[Claims] 1. A fabric shaft for winding up a shade fabric (2)
A sunshade comprising: a fabric shaft (2) provided in a casing (1), wherein the fabric shaft (2) is biased by a torsion spring (4) in a winding direction. The one end (3) of the cloth shaft is supported on the first face end cover (11) of the casing (1), and the torsion spring (4) is attached to the first end of the cloth shaft (2). In the area of the second end (12), where the fabric axis (2) is located on the opposite side, via a bearing journal (13, 23) extending from the face end cover (17). A sun shade characterized by being supported. 2. A shade according to claim 1, wherein the bearing journal (13) is detachably screwable to the face end cover (17). 3. The bearing journal is formed by a drive shaft (23) of an electric motor (19) or an extension thereof.
The awning according to claim 1, characterized in that the rope wheel (21) is connected to the drive shaft (23). 4. The awning according to claim 3, wherein the rope sheave (21) is arranged in the end region (12) of the fabric shaft (2). 5. A rope pulley (21) is formed in one piece with a bearing tube (22), and a fabric shaft (2) is supported via bearing rings (14, 15) which are housed on the bearing tube (22). The awning according to claim 4, characterized in that: