JPH0452397Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an improvement of a device for adjusting the angle of the slats of a built-in Venetian blind by turning a dial provided in the vertical frame of a double-glazed window. .

[Prior Art] A device for adjusting the slat angle of a built-in Venetian blind by turning a dial attached to the vertical frame of a double-glazed window is known from Utility Model Application No. 13398/1983. The device consists of a horizontal rotation axis extending in the width direction within the vertical frame, a dial and worm fixed in line with the rotation axis, and a vertical transmission shaft fixed to the worm. It was connected to the tilting shaft of the slat via a bevel gear in the horizontal frame, and the angle of the slat was adjusted by transmitting the rotation of the dial to the tilting shaft.

This known device requires a relatively wide space on the front side of the vertical frame because the worm and dial are arranged in parallel in the width direction within the vertical frame.

[Problem to be solved by the invention] In addition to the device for adjusting the angle of the slats of a blind built into a double-glazed window, when the device for raising and lowering the slats is also installed inside the same vertical frame,
Unless the width that the device occupies within the vertical frame is narrowed, a problem arises in that the glass surface becomes smaller. Therefore, there has been a demand for a slat angle adjustment device that occupies a narrow width within the vertical frame.

The present invention was developed in response to the above-mentioned needs, and its purpose is to provide a slat angle adjusting device that occupies a narrow width within the vertical frame.

[Means for Solving the Problems] In order to achieve the above object, the feature of the present invention is to suspend the vertical frame 12 from the tilting axis 31 of the slat, as shown in the embodiment of FIG. Transmission shaft 21
the upper ends of which are connected via a transmission mechanism such as a flexible shaft joint 35, and a worm wheel is fixed to the transmission shaft,
The worm 24 that engages with the worm wheel is exposed at the front and can also be used as a dial.

[Function] When you turn the dial or worm 24 with your finger,
The rotation is transmitted from the transmission shaft 21 to the tilting shaft 31 via the flexible joint 35, so that the tilting shaft rotates and the angle of the slat is adjusted.

Since it is the worm 24, that is, the dial, that determines the width of the device within the vertical frame 12 of the double-glazed window 10, the width of the device within the vertical frame must be greater than or equal to the dial width plus the width of the bearings on both sides. No.

[Example] The apparatus of the present invention will be described based on an example shown in the drawings.

As shown in FIGS. 1 and 2, a blind headbox 30 is attached to the upper horizontal frame 11 of a double-glazed window 10, and a tilting shaft 31 is rotatably supported within the headbox. Tilt axis 3
A drum 32 is attached to 1 so as to rotate together, and the upper end of a ladder cord 33 is hung on the drum. Ladder code 33 is head box 30
The slats 34 hang down inside the glass surface and support a large number of slats 34. One end of the flexible shaft joint 35 is connected to the end of the tilting shaft 31, and the other end of the joint is connected to the transmission shaft 2.
Connect to the upper end of 1. The transmission shaft 21 hangs down within the vertical frame 12, and its lower end is connected to a bearing 22 provided within the vertical frame.
Supported by The transmission shaft 21 passes in the middle through a base 22 in which a worm wheel 23 is fitted onto the transmission shaft 21. A worm 24 meshes with the worm wheel 23 and is supported by the base 22. warm 24
Since a part of the worm 24 is exposed at the front of the vertical frame 12, the worm 24 can be directly rotated with a finger. Although the tilting shaft and the transmission shaft in the embodiment are connected by a flexible shaft joint, they may be connected via a rotation transmission mechanism such as a bevel gear.

In the device of the present invention, inside the vertical frame 12, the worm 24 and the worm wheel 23 are not lined up in the width direction but overlap front and back.
It is only the width of 2.

Next, the adjustment of the slat angle using the device of the present invention will be explained. Since a part of the circumferential surface of the worm 24 is exposed in front of the vertical frame 12 of the double-glazed window 10, the worm 24 can be directly rotated with a finger. When the worm 24 is turned in one direction, the transmission shaft 21
rotates, and the rotation is transmitted to the tilting shaft 31 via the flexible shaft joint 35, so that the slat 34 is tilted to one side. Turning the worm 24 in the opposite direction tilts the slat 34 in the opposite direction. In this way, warm 24
becomes a dial, and by turning it with your finger,
You can easily adjust the slat angle.

[Effects of the invention] As mentioned above, the device of the present invention has no part wider than the width of the base that bears the worm, so compared to the conventional device in which the worm, dial, and their bearings are lined up in the width direction. The effect is that the width occupied within the vertical frame is significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a double-glazed window equipped with a device according to an embodiment of the present invention;
The figure is a sectional view taken along the - line in FIG. 1. In the figure, numeral 10 is a double glass window, 11 is an upper horizontal frame, 12 is a vertical frame, 21 is a transmission shaft, 22 is a base, 23 is a worm wheel, 24 is a worm,
30 is a head box, 31 is a tilting shaft, 34 is a slat, and 35 is a flexible shaft joint (rotation transmission mechanism).

Claims (1)

[Scope of utility model registration request] The headbox of the blind is supported on the upper horizontal frame of the glass window, the tilting axis of the slat is rotatably supported by the headbox, and the upper end is connected to the tilting axis via a rotation transmission mechanism to move inside the vertical frame. The apparatus includes a hanging transmission shaft, a worm wheel is attached to the transmission shaft, a worm that engages with the worm wheel is supported on a base fixed to the vertical frame, and a part of the circumferential surface of the worm is attached to the transmission shaft. A slat angle adjustment device for a blind with a built-in glass window, characterized in that the vertical frame is exposed from the front so that it can be rotated with a finger.