JPH0112916B2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention provides a method for adjusting so-called winding misalignment, in which one side of a roll blind screen shifts outward and the other side shifts inward as it is rolled up, and a method for implementing the adjustment method. It is about roll blinds that can be used.

<Background Art> If the parallelism and perpendicularity of the screen to which the roll blind is attached are not correct from the beginning, the roll blind will immediately become misaligned. Furthermore, even if the screen has good parallelism and perpendicularity, if there is a difference in physical properties such as thickness or bending hardness, misalignment will occur. Further, even if the winding does not occur initially, the winding misalignment will occur if the physical properties of the screen change over time or if the screen stretches during use.

The conventional method for adjusting the winding misalignment of the screen is to attach tape or the like to the end of the rotating cylinder opposite to the side where the screen winds outward as the screen is wound. The most common method is to change the tape, but if the fabric of the screen is thin, there is a problem that the fabric adapts to the protrusions of the tape during use and returns to its original state causing misalignment. One way to do this is to unbalance the weight of the weight bar at the bottom of the screen from side to side to adjust the winding misalignment.
There was a problem in that the fabric of the screen on the load side stretched during use and had to be repaired frequently. The most reliable method is to trim the top edge of the screen, but it is so cumbersome that it is rarely done.

<Disclosure of the Invention> The object of the present invention is to provide a method for adjusting winding misalignment that is substantially the same as the winding misalignment adjustment method of cutting the upper edge of the screen, which is the most effective method, and is easy to implement, and to implement the method. Our goal is to provide roll blinds that can.

In order to achieve the above object, the gist of the present invention is to fix a screen top gripping member by twisting it to the circumferential surface of a rotating cylindrical body, and to fix the end of the screen top gripping member on the side that shifts outward as the screen is wound. The aim is to adjust the length so that one end is wound less than the opposite end. To carry out this method, a screen top gripping member is attached to the rotating cylindrical body of the roll blind in a twistable and removable manner.

<Example> The method of the present invention will be described based on an example shown in the drawings. As shown in FIG. 1, the upper edge of a screen 10 of a roll blind is fixed to a screen top gripping member 12 in the form of a split sleeve with an adhesive tape 14. The screen top gripping member 12 is fitted into the rotating cylindrical body 16 and is fixed to the rotating cylindrical body 16 from above with an adhesive tape (not shown), but it can be freely twisted until it is fixed with the adhesive tape. If the screen 10 is unwound in the direction A as it is wound, as shown by the two-dot chain line in FIG. After twisting the upper edge of the screen 10 on the A side a little more than the opposite end, the screen top gripping member is fixed to the rotating cylindrical body 16 again using adhesive tape.
This is substantially the same as the method of adjusting the winding misalignment by cutting off a part of the A side end of the screen 10, so that the winding misalignment of the screen can be reliably corrected.

The screen top gripping members need not be limited to the split sleeve shape, and the screen top gripping members 18, 20 can be either strip-shaped or linear, as shown in FIGS. 3 and 4. screen 10
The upper edge of the screen 1 is fixed to the strip-shaped screen top gripping member 18 shown in FIG. 3 with adhesive tape 14.
According to the winding deviation of 0, the screen top gripping member 18 is twisted so that the side that deviates outward is slightly returned as shown by the one-dot chain line or the two-dot chain line in FIG. It attaches to the body 16. Since the side that is rolled outwardly is wound less than the opposite side, the winding misalignment is reliably corrected as in the previous embodiment.

As shown in FIG. 4, a linear screen top gripping member 20 is passed through the bag-shaped upper edge of the screen 10 and inserted into a mounting groove 22 provided on the circumferential surface of the rotating cylindrical body 16. The mounting groove 22 is at the center angle
The screen top gripping member 20 is formed in an arc shape of about 90 degrees, and both ends of the screen top gripping member 20 exposed from the upper edge of the screen are fixed at arbitrary angular positions within the groove 22 using a presser (not shown). When the screen top gripping member 20 is fixed to the rotating cylindrical body 16 so that the end of the screen top gripping member 20 on the side that is rolled outward is slightly returned to the opposite end, the front As in the embodiment, the winding misalignment is reliably corrected.

As mentioned above, the method of the present invention in which the screen is fixed to the rotating cylinder so that the side of the screen that is rolled outwardly is less wound than the opposite side is easy to implement and does not cause miswinding. Since this is substantially the same as the adjustment method of cutting down the screen, it is possible to reliably correct winding misalignment. Further, this method of adjusting the winding deviation can be carried out very easily in a roll blind equipped with a screen top gripping member which is fixed to the rotating cylindrical body so as to be able to adjust the twisting.

[Brief explanation of drawings]

1 and 2 are a cross-sectional view and a perspective view of a roll blind implementing the method of one embodiment of the present invention, and FIG. 3 is a diagram corresponding to FIG. 2 of another embodiment,
FIG. 4 is a diagram corresponding to FIG. 1 of another embodiment. 10: Screen, 12, 18, 20: Screen top gripping member, 16: Rotating cylindrical body.

Claims (1)

[Claims] 1. A screen top gripping member to which the upper edge of the screen is fixed so that as the screen of the roll blind is rolled up, the end that shifts outward is rolled less than the opposite end. A method for adjusting the winding misalignment of a roll blind, characterized in that the roll blind is releasably fixed to a rotating cylindrical body by twisting. 2. In a roll blind consisting of a rotating cylindrical body 16 and a screen 10 wound around the rotating cylindrical body, the screen top gripping members 12 and 1 are fixed to the rotating cylindrical body via an adhesive tape 14.
8 and 20, the upper edge of the screen is attached to the screen top gripping member, and the screen top gripping member is capable of being fixed in a spirally twisted state along the periphery of the rotating cylindrical body. A roller blind winding misalignment adjustment device featuring: 3. The screen top gripping members 12, 18 are band-shaped or split sleeve-shaped, and the upper edge of the screen is fixed to the outer peripheral surface of the screen top gripping member. roll blind winding adjustment device. 4. An arc-shaped mounting groove 22 with a central angle of about 90 degrees is provided on the circumferential surface of the rotating cylinder, the screen top gripping member 20 is linear, and the upper edge of the screen is formed into a bag shape, The screen top gripping member is passed through the bag-shaped upper edge and inserted into the mounting groove 22, and the portions of the screen top gripping member protruding from both sides of the bag-shaped upper edge are fixed in the mounting groove. The winding deviation adjustment device for a roll blind according to claim 2, characterized in that: