JPH0128237Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vertical blind whose top box can be installed at an angle.

Depending on the installation location, it may be desirable to install the top box of vertical blinds at an angle.
However, in conventional blinds, when the top box is tilted, the mounting axis of the slat is also tilted, and as the mounting shaft rotates, the top side of the slat tilts and the shape of the slat collapses, causing the problem that the blind becomes inoperable. Ta.

The object of the present invention is to provide a vertical blind in which the rotational operation of the slats will not be hindered at all even if the top box is installed at an angle.

In order to achieve the above object, the gist of the present invention is to form a universal joint between the upper and lower halves of the mounting shaft of the slat, so that even if the upper half becomes an oblique shaft, the lower half will remain fixed. The reason is that the axis is always vertical.

The blind of the present invention will be explained based on the embodiment shown in the drawings. As shown in FIG. 1, when the top box 10 is installed at an angle, the upper half 21 of the mounting shaft 20 from which the slat 11 is suspended will protrude obliquely, but the lower half 22 will be vertical and will extend over the upper side of the slat 11. Support horizontally.

As shown in FIG. 2, runners 12 of the same number as slats 11 are fitted into a top box 10 so as to be movable in the longitudinal direction, and a rotating shaft 13 passing through the runners is fitted into the top box 10.
will be established. Rotating shaft 1 inside each runner 12
Insert the worm 14 into 3. The worm 14 rotates together with the rotating shaft 13 and slides on the rotating shaft 13 together with the runner 12. An opening 15 for obliquely inserting the mounting shaft 20 and a bearing groove 16 for bearing the inserted mounting shaft 20 are provided on the side surface of the runner 12. A worm 1 is attached to the top of the upper half 21 of the mounting shaft 20.
A worm wheel 24 that engages with the worm wheel 4 is attached, and a shaft portion 23 that fits into the bearing groove 16 is provided below.
When the mounting shaft 20 is obliquely inserted through the opening 15 of the runner 12 and the shaft portion 23 is pushed into the bearing groove 16, the worm wheel 24 engages with the worm 14, and the entrance of the bearing groove 16 of the synthetic resin runner 12 is elastic. The shaft portion 23 is expanded and rotatably fitted into the bearing groove 16. The lower end of the upper half 21 is formed into a fork 25, and a U-shaped intermediate hanger 26 is rotatably fixed to the inside of the fork, and the lower half 22 is attached to the intermediate hanger.
A locking portion 27 having a circular cross section formed at the upper end is hung.

In the embodiment shown in FIG.
5 and the bearing groove 16 inside the runner 12, but there is no need to limit the mounting method to this method. For example, make a shaft hole in the bottom of the runner that does not communicate with the side surface, insert the upper half of the mounting shaft into the runner from below, insert the worm wheel into the runner through the opening on the top of the runner, engage the worm, and install it. It may be fixed to the upper half of the runner so that its lower surface is in contact with the inner bottom surface of the runner.

As shown in FIGS. 3 and 4, the intermediate hanger 26
is rotatable around an axis Y perpendicular to the axis X of the upper half 21, and when receiving the weight of the slat via the locking part 27 of the lower half 22, the intermediate hanger 26 moves along its center line. is rotated to a position where it enters a vertical plane containing axis Y. Since the inner circumferential surface of the intermediate hook 26 that locks the locking part 27 is semi-cylindrical, when the weight of the slat is applied, the locking part 27, which has a circular cross section, latches onto the lower half 22.
rotates to a position where it becomes vertical and supports the slat horizontally. Therefore, the upper half 21 of the mounting shaft 20
rotates about the oblique axis X in the direction of the arrow, the lower half 22 always rotates about the vertical axis Z in the same direction. It goes without saying that even if the forked part is provided in the lower half and the locking part is provided in the upper half, the same effect will be obtained.

Further, as shown in FIG. 5, one of the upper half 21 and the lower half 22 of the mounting shaft 20 is formed into a forked part 25 of a spherical seat, and the other is formed into a spherical locking part 27. A pair of protrusions 2 extending diametrically inside the portion 25
9, and a pair of grooves 28 extending in the meridian direction may be provided on the spherical surface of the locking portion 27. Also in this case, when the upper half 21 rotates around the oblique axis X, the protrusion 29
moves along the groove 28 so that the lower half 22 is vertical, so the lower half 22 always rotates about the vertical axis Z in the same direction.

When the cord of the vertical blind shown in FIG. 1 is pulled and the rotating shaft 13 shown in FIG. However, since the lower half 22 always rotates vertically,
The slat 11 supported by the lower half 22 also rotates about a vertical axis. Therefore, Topbox 1
Even if the top box 10 is installed obliquely, the slat 11 rotates horizontally in the same way as when the top box 10 is installed horizontally, so there is no risk of the slat 11 losing its shape, and the rotation operation of the slat 11 can be performed smoothly. .

[Brief explanation of drawings]

Figure 1 is a front view of a blind according to an embodiment of the present invention, Figure 2 is a side view of the main parts of the blind in Figure 1 when it is held horizontally, and Figure 3 is an enlarged view of the mounting shaft of the blind in Figure 1. Figure 4 is a partial sectional view shown in Figure 3.
FIG. 5, a sectional view taken along the line - in the figure, is a diagram corresponding to FIG. 3 of another embodiment. 10... Top box, 12... Runner, 2
0... Mounting shaft, 21... Upper half, 22... Lower half, 25... Forked part, 26... Locking part, 27...
Intermediate hanger, 28...groove, 29...protrusion.

Claims (1)

[Claims for Utility Model Registration] 1. A box-shaped runner 12 that is slidably supported in the top box 10 in the longitudinal direction, and a rotating shaft 13 that is rotatably supported within the top box and passes through the runner. , a worm 14 supported by the runner so as to rotate integrally with the rotation shaft; and a worm wheel 24 rotatably attached to the runner and engaged with the worm, the rotation axis of which is perpendicular to the longitudinal direction of the top box. A vertical blind comprising: a mounting shaft 20 rotatably supported by the runner and coaxially fixed to the worm wheel; and a slat 11 suspended from the mounting shaft; Separate upper half 2
1 and a lower half part 22, the upper half part is directly connected to the worm wheel and is supported by a bearing so that the lower end protrudes from the top box, the slat is removably attached to the lower half part, and the upper half part Universal joints 25, 26, 27, 28, 2 are provided between the lower end of the lower half and the upper end of the lower half.
9, and the lower half part is always rotated about a vertical axis by the weight of the slat. 2. A forked portion 25 is provided on either the lower end of the upper half portion 21 or the upper end of the lower half portion 22, and a locking portion 26 with a circular cross section is provided on the other, and a U-shaped locking portion is provided on the inside of the forked portion. The intermediate hanger 27 is rotatably fixed around an axis perpendicular to the axis of the upper half,
1. The vertical installation device according to claim 1, wherein the locking portion is rotatably locked around a horizontal axis on the semi-cylindrical inner peripheral surface of the intermediate hanger. type blinds. 3 A spherical forked portion 25 is provided on one of the lower end of the upper half portion 21 and an upper end portion of the lower half portion 22, and a spherical locking portion 27 is provided on the other, and a pair of spherical locking portions 27 are provided on the forked portion extending in the diametrical direction. A utility model according to claim 2, characterized in that a pair of grooves 28 extending in the meridian direction are provided in the locking portion of the protrusions 1 and 29, and the protrusions are engaged with the grooves. Vertical blinds for diagonal installation.