JPH0340194B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a slat elevating mechanism for a blind.

PRIOR TECHNOLOGY Normally, in a blind, multiple slats are supported by ladder cords near both sides, and a lifting cord is passed through the blind, and each slat is wound or unwound electrically or manually. It was starting to be lifted up and down.

However, in the slat elevating mechanism of such a blind, the elevating cords on both the left and right sides are independent, so the slats may be raised and lowered with the slats tilted to the left or right due to slack due to aging of the elevating cords or winding errors. It was hot.

Purpose An object of the present invention is to provide a slat lifting and lowering mechanism for a blind that allows the slats to be raised and lowered without tilting.

Composition of the invention The composition of this invention is that pulleys are arranged at a predetermined interval on the upper edge of the window, pulleys are similarly arranged at a predetermined interval on the lower edge of the window, and an endless operation wire is connected to the endless operation wire. The edge is hung on a pulley on the lower edge of the window, and the middle part is supported on a pulley on the upper edge of the window, and the operating wire can be moved and operated along each pulley by a driving means, so that the upper and lower pulleys are connected at the same time. A pair of ladder cords supporting both sides of the slat are suspended and supported at the same height position of the operating wire that moves in the direction.

Embodiment Hereinafter, an embodiment of an automobile blind according to the present invention will be described with reference to the drawings.A blind 2 attached to a rear window 1 of an automobile has the upper end of a ladder cord 4 supported by an operating wire 3, and the upper end of a ladder cord 4. Multiple stages of slats 5 are supported by a ladder cord 4, and the slats 5 are raised and lowered by moving the ladder cord 4 up and down with an operating wire 3.

In FIGS. 2 and 5, a hanging frame 6 for suspending and supporting the slats 5 of the blind 2 has a circular tube shape, and a pulley support part 7 integrally molded at both ends of the hanging frame 6 is attached to the window 1 via a bracket 8. is fixed to the upper edge of the As shown in FIG.
There are two pulleys 9a, 9b, 9 in the front and back.
c and 9d are independently rotatably supported. And these pulleys 9a, 9b,
Endless operation wires 3 are hung on the pulleys 9c and 9d, and as shown in FIG.
On the other hand, the operating wires 3 that are hung thereon are hung on the rear pulleys 9b and 9d, so that the operating wires 3 intersect within the hanging frame 6.

One endless edge of the operating wire 3 hanging down from one of the pulley supports 7 is attached via a bracket 10 to the lower edge of the window 1 below the one pulley support 7, as shown in FIGS. 4 and 6. The drive pulley 11a of the motor 11 is hung thereon. A clutch mechanism is built in between the drive pulley 11a and the output shaft of the motor 11, so that when the operating wire 3 becomes immovable, the motor 11
output is absorbed by this clutch mechanism.

The other endless edge of the operating wire 3 hanging down from the other pulley support 7 attaches a bracket 12 to the lower edge of the window 1 below the other pulley support 7, as shown in FIGS. 4 and 7. It is hung on a tension pulley 14 in a tension case 13 which is attached through the tension case 13. Tension pulley 1
4 is a pulley metal fitting 15 in the same case 13.
A tension bolt 16 is suspended from the pulley fitting 15. The tension bolt 16 penetrates the bottom side 13a of the tension case 13 and protrudes downward, and a nut 17 is screwed onto the tip of the tension bolt 16. A coil spring 1 is inserted between the nut 17 and the bottom side 13a of the tension case 13.
8 are arranged. The tension pulley 14 is then moved through the tension bolt 16 and, by extension, the pulley metal fitting 15, by the urging force of the coil spring 18 with the bottom side 13a of the tension case as a fulcrum.
Since the pulley 14 is pulled downward, the operating wire 3 suspended from the pulley 14 is put under tension. The tension of the operating wire 3 can be appropriately selected by adjusting the biasing force of the coil spring 18 using the nut 17.

The operating wires 3 between each pulley support part 7 and the motor 11 or the tension case 13 are stretched in parallel in the front and back. The clip 19 for supporting the upper end of the ladder cord 4 is caulked and fixed at the same height position of the operating wire 3 located at the rear below each pulley support part 7, as shown in FIGS. 5 and 8. The upper end of the ladder cord 4 supporting both sides of the slat 5 is suspended from the clip 19. The ladder cord 4 suspended from the clip 19 supports each slat 5 in a substantially vertical position as shown in FIG. Therefore, when the slats 5 are pulled up by the ladder cord 4 and the blind 2 is closed, the vertical slats 5 block light from outside the window 1.

The operating wire 3 below the clip 19 passes through a long hole 5a provided in each slat 5 to position each slat 5 in the front, rear, left and right directions. Since the operating wire 3 is suspended between each pulley as shown in FIG. 8, both clips 19 are raised or lowered synchronously by the operation of the motor 11.

Next, the operation of the blind elevating mechanism constructed in this way will be explained.

Now, as shown by the chain line in Figure 6, all the slats 5
When the slats 5 are lowered to the lower edge of the window 1 and stacked, that is, when the blind 2 is fully open, the clip 19 is positioned above the stacked slats 5. From this state, when pulling up the slat 5 to close the blind 2, operate the motor 11 and move the operating wire 3 in the direction of arrow A in FIG. The slats 5 are sequentially pulled up through the upper slats 5.

As shown in FIG. 2, the clip 19 can be raised until it comes into contact with the pulley support 7, and in this state the blind 2 is fully closed. When the motor 11 is further operated after the clip 19 has come into contact with the pulley support 7 and cannot be raised any further, the clutch mechanism built into the motor 11 is operated and the motor 11 is stopped. No output acts on the drive pulley 11a. Therefore,
The motor 11 will not be burnt out, and each pulley and operating wire 3 will not be damaged.

When lowering the slat 5 to open the blind 2, the motor 11 is operated and the operating wire 3 is opened.
When the clips 19 are moved in the direction of arrow B in FIG. 8, the left and right clips 19 are lowered in synchronization, so that the slats 5 are lowered and stacked on the lower edge of the window 1 in order from the lower slat 5. Further, each slat 5 has an operating wire 3 passed through a long hole 5a provided on both sides thereof, so that each slat 5 is raised and lowered along the operating wire 3 when opening and closing the blind as described above. Therefore, even when this blind 2 is attached to an inclined rear window of an automobile, there is no need to separately provide a guide wire or the like to support each slat 5 along the inclination of the window, and the slat 5 does not sag against the window. The robot is moved up and down along the operating wire 3 without any problems.

As described above, in the slat elevating mechanism of this blind, since both the ladder cords 4 that support both sides of the slat 5 are suspended from a single endless operating wire 3, both ladder cords 4 are suspended by the operation of the motor 11. The distance that cord 4 is moved is also exactly the same. Therefore, the clip 19 is connected to the operating wire 3 in advance.
Caulk and fix the clip at the same height position, and then
If you suspend and support the upper end of ladder cord 4 from 9,
When the slats 5 are moved up and down, it is preferable that each slat 5 be tilted in the left-right direction.

In the above embodiment, the upper end of the ladder cord 4 is supported by the operating wire 3, and the blind 2 is closed by pulling up each slat 5 via the ladder cord 4, but the upper end of the ladder cord 4 is suspended. A photo rail is suspended and supported on the frame 6, and a photo rail is suspended and supported on the lower end of the ladder cord 4, and the bottom rail is supported and fixed in a horizontal state to the operating wire 3. By moving up and down, each slat 5 is moved upward by the bottom rail. It is also possible to open the blind by pushing it up. Further, the present invention can be applied not only to the above-mentioned automobile blinds but also to blinds installed in houses.

Effects As detailed above, in this invention, since the pair of ladder cords 4 supporting both sides of the slat 5 are supported at the same height position of the single endless operation wire 3, both operation wires 3 Since the pair of left and right ladder cords 4 can always be raised and lowered by the same distance by the driving operation, an excellent effect is exhibited in which the horizontally supported slat 5 can be raised and lowered without tilting to the left or right.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention in an automobile blind, Fig. 2 is a front view showing an upper hanging frame, Fig. 3 is a plan view thereof, and Fig. 4 is a front view showing an embodiment of the present invention in an automobile blind. A front view showing the motor and tension device at the bottom of the blind, FIG. 5 a side view showing the top of the blind, FIG. 6 a side view showing the motor at the bottom of the blind, FIG. 7 a side view of the tension device, and FIG. FIG. 2 is a schematic perspective view showing a moving path of the operating wire. Window...1, Blind...2, Operation wire...
3, Ladder cord...4, Slut...5, Pulley...9a, 9b, 9c, 9d, Motor...1
1. Drive pulley...11a, Tension pulley...14.

Claims (1)

[Claims] 1. Pulleys 9a, 9b, 9c, 9 are provided on the upper edge of the window 1.
d are arranged at a predetermined interval, pulleys 11a and 14 are also arranged at a predetermined interval on the lower edge of the window 1, and the endless edge of the endless operation wire 3 is connected to the lower edge of the window 1. While hanging on the pulleys 11a and 14, the middle part is attached to the pulleys 9a and 9b on the upper edge of the window 1.
9c, 9d, and the operating wire 3 is connected to each pulley 9a, 9b, 9c, 9d, 11 by a driving means.
a, 14, and a pair of ladder cords 4 supporting both sides of the slat 5 are supported at the same height position of the operating wire 3, which moves in the same direction between the upper and lower pulleys. A slat lifting mechanism for blinds. 2 The pulley 14 provided at the lower edge of the window 1 is a pulley metal fitting 1 that is biased downward by a coil spring 18.
5. A slat elevating mechanism for a blind according to claim 1, which is supported by a slat lifting mechanism for a blind.