JP2769415B2 - Blind device with built-in double glazing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-glazed glass blind device.

[0002]

2. Description of the Related Art As a conventional blind device with a built-in double-layer glass, there is one disclosed in Japanese Utility Model Laid-Open No. 62-91895. The blind apparatus with a built-in double-layer glass shown therein has a horizontal rotating shaft mounted on the upper part of the inside of a double-layer glass structure in which a pair of glass plates is provided in a square frame-shaped spacer. Both ends of the horizontal rotating body are attached to the lower spacer. A plurality of ladder cords supporting a large number of slats are stretched between the horizontal rotation axis and the horizontal rotation body so as not to slide relative to the horizontal rotation axis. The horizontal rotating shaft is rotatable by raising and lowering a driving force transmitting member led out from near the center thereof. The driving force transmitting member is moved up and down by vertically moving a driving permanent magnet that is integrally and movably attracted to a driven permanent magnet provided on the driving force transmitting member from an outer surface of the glass plate.

[0003]

However, the above-mentioned conventional blind device with a built-in double-layer glass has the following problems. That is, since the horizontal rotator is fixed to the spacer, the ladder code does not have its own weight. For this reason, when assembling the ladder cord between the horizontal rotating shaft and the horizontal rotating body, it is necessary to artificially tension the ladder cord. However, the ladder cord cannot rotate the slat smoothly if it is extremely tense or too loose. For this reason, it is very difficult to assemble the ladder cord between the horizontal rotating shaft and the horizontal rotating body with an appropriate tension. When rotating the slat, it is good to move the drive permanent magnet downward. There is a problem that the slat is not fully closed even if it moves to the top. Since the driving force transmitting member is disposed near the center of the blind, the driven permanent magnet, the driving permanent magnet, and the like are located near the center of the glass, and there is a problem that the appearance is impaired.
The present invention is to solve such a problem.

[0004]

The object of the present invention is to provide a rotary drum connected to a ladder cord via a rotary shaft with a spring for urging the rotary drum to always rotate in the operation cord winding direction. Solve. That is,
The blind device with a built-in double-glazed glass of the present invention is provided inside a double-glazed glass configured by a pair of glasses being provided in parallel with each other with a frame having a rectangular cross section sandwiched from both sides. A head box attached to the lower surface of the upper frame, and a number of slats supported in alignment by a ladder cord,
In the head box, a support member to which a ladder code is connected so as to be able to be wound and unwound, a rotation shaft connected to be rotatable integrally with the support member, and a rotation shaft driving device capable of rotating the rotation shaft And a rotating shaft driving device, a rotating drum rotatable integrally with the rotating shaft, a drum receiver rotatably supporting the rotating drum, and an operation code capable of being wound and unwound on the rotating drum. And a magnetic material attached to the end of the operation cord, a magnet capable of operating the operation code by adsorbing the magnetic material across the glass, and a fixed non-rotatably attached to the drum receiver so as to be in series with the rotating drum It is characterized by comprising a drum, and a spring provided on the outer periphery of the rotating drum and the fixed drum and constantly biasing the rotating drum in the operation cord winding direction.

[0005]

When the magnet is moved downward, the magnetic material is also moved downward together with the magnet, so that the operation cord is lowered and the rotary drum rotates accordingly. The rotation of the rotary drum is transmitted to the support member via the rotation shaft, and the support member takes up one ladder code and unwinds the other ladder code.
This causes the slat to tilt. Next, when the magnet is moved upward, the magnetic body also moves upward together with the magnet, so that the operation cord between the rotating drum and the magnetic body is loosened. Since the rotary drum is constantly applied with a rotational force in the operation code winding direction by a spring, the rotary drum rotates in a direction opposite to that when the operation code is lowered by an amount corresponding to the loosening of the operation code. Thereby, the operation cord is wound up, and the support member rotates integrally with the rotary drum via the rotary shaft. As the support member rotates, the other ladder code is wound and one ladder code is unwound. As a result, the slats are inclined in the direction opposite to the direction when the operation cord is lowered. Therefore, when the operation cord is raised, the rotating drum is always given a force to rotate in the operation cord winding direction by the spring, so that the rotation drum is surely rotated by an amount corresponding to the rise of the operation cord, thereby improving the rotation of the slat. In addition, since the rotation of the slat is performed by winding and unwinding the ladder cord by the support member, it is not necessary to strictly set the degree of tension of the ladder cord. Thereby, the assembling work is easy. Further, since the rotating drum can be arranged at the side end of the double-glazed glass, the operation cord can also be arranged at the side end, and an excellent appearance can be obtained.

[0006]

FIG. 1 is a diagram showing a main part of a blind device with a double-glazing unit according to the present invention in a state where glass is removed. The double-glazed glass 10 includes a frame 12 formed by connecting both ends of frame members 12a and 12b with a joint 13 to form a rectangular cross section, an indoor glass 14 (glass) provided with the frame 12 interposed therebetween, and Outdoor glass 16 (glass)
(See FIG. 2) and the sealing material 1 provided on the outer periphery of the frame 12.
And 7. A blind device 18 is arranged in the double glazing 10. Blind device 1
Reference numeral 8 denotes a plurality of slats 20 arranged at predetermined intervals in the vertical direction, a head box 22 arranged on the upper end side of the row of slats 20 and attached to the upper frame member 12a of the frame 12, and The ladder has a ladder cord 24 supporting the top 20 and having an upper end connected to the inside of the head box 22, and an operation cord 26 for operating rotation of the slat 20. In the head box 22, there is provided a support member 28 to which the upper end of the ladder cord 24 is connected so that it can be wound and unwound. The ladder cord 24 is inserted into the head box 22 through an insertion hole 27 formed at the lower end of the head box 22. The support member 28 is connected to a rotating shaft driving device 31 via a rotating shaft 30. Rotary shaft drive 31
Is a rotary drum 32 having an upper end of the operation cord 26 connected so as to be capable of winding and unwinding, a drum receiver 34 for supporting the rotary drum 32, and a rotary drum provided between the rotary drum 32 and the drum receiver 34. 32 is always the operation code 26
It is constituted by a spring 36 biasing in the winding direction. The support member 28 and the rotating drum 32 can be integrally rotated by a rotating shaft 30. The rotation of the rotation shaft 30 is performed by operating the operation code 26. A magnetic body 38 is attached to the lower end of the operation cord 26.

FIG. 2 is a side sectional view of a blind device incorporating a double-glazing unit. Inverted T-shaped protrusions 39a and 39b are formed at both lower end portions of the upper frame member 12a.
The blind device 18 is fixed in the double glazing 10 by fitting the upper end of the head box 22 into a groove formed between the protrusions 39a and 39b and the lower surface of the upper frame member 12a. I have. The operation code 26 is
It is arranged on the indoor glass 14 side. Interior glass 1
An operation device 40 is provided outside the double-glazed glass 10. The operation device 40 includes a magnet 42 and an operation knob 4 that projects perpendicular to the indoor glass 14 that covers the outer periphery of the magnet 42.
4 having a cover 46. The magnetic body 38 of the operation cord 26 is attracted to a magnet 42 of an operation device 40 provided to face the indoor glass 14 with the operation body 40 interposed therebetween. The operation cord 26 is wound and unwound on the rotating drum 32 by moving the operation device 40 in the vertical direction, and thereby moving the magnet 42 and the magnetic substance 38 adsorbed on the magnet 42 in the vertical direction. Operation code 2
As described later, 6 is always pulled by the spring 36 in a direction in which it is wound around the rotating drum 32, and therefore moves without loosening. Note that the attraction between the magnet 42 and the magnetic body 38 is set to be larger than the rotational torque stored in the spring 36.

FIG. 3 is a diagram (plan view) showing the rotary shaft driving device 31 in detail, and FIG. 4 is a diagram showing the rotary shaft driving device 31 of FIG.
The figure (front view) seen from the same direction as above is shown. The drum receiver 34 has a substantially U-shaped cross section, and rotatably supports the rotating shaft 30 penetrating the opposing walls 44 and 46. The rotating drum 32 is arranged inside the drum receiver 34 adjacent to the wall portion 44. The rotating drum 32 has a rotating shaft 3 passing therethrough coaxially therewith.
0 so as to be rotatable integrally. A fixed drum 48 is non-rotatably mounted inside the drum receiver 34 of the wall portion 46 by inserting an end portion thereof. Fixed drum 4
A rotating shaft 30 is rotatably penetrated in the inside 8. A flange 50 is provided on the outer circumference of the rotary drum 32 at an intermediate position in the axial direction, and the upper end of the operation cord 26 is connected to the flange 50. The operation code 26 extends from the flange 50 to the wall 4.
It can be wound on the rotating drum 32 up to four ends. A spring 3 is provided between the rotating drum 32 and the fixed drum 48 on the opposite side of the operation cord 26 winding side with respect to the flange 50.
6 are provided. The both ends 36a and 36b of the spring 36 are bent at right angles, and the grooves 52 and 5 formed on the end of the rotary drum 32 on the flange 50 side and the end of the fixed drum 48 on the wall 46 side, respectively.
4 is hung on each. The protrusions 56a and 56b, and 58a and 58 are spaced 180 degrees apart from each other on the inner peripheral surface of the rotary drum 32 and the fixed drum 48 at axial positions relative to the positions where the grooves 52 and 54 are formed.
b are formed respectively. One end of the spring 36 is between the projection 56a and the projection 56b, and the other end is a projection 58.
a and 58b are provided so as to be sandwiched between them, whereby the axial movement of the spring 36 is restricted.

Next, the operation of this embodiment will be described.
When the operation knob 44 is moved downward, the magnetic body 38 attracted to the magnet 42 also moves downward. This allows
The operation code 26 is unwound from the rotating drum 32. At this time, since the rotating drum 32 rotates counterclockwise in FIG. 2, the supporting member 28 is also rotated via the rotating shaft 30.
And rotate together. Thereby, the ladder cord 24 on the outdoor side is wound around the support member 28 and the ladder cord 24 on the indoor side is unwound from the support member 28. For this reason, the slat 20 rotates counterclockwise in FIG. 2 and inclines so that its indoor end is located downward and its outdoor end is located upward. Next, when the operation knob 44 is moved upward from the above state, the magnetic body 38 attracted to the magnet 42 also moves upward. At this time, operation code 2
In order to loosen the rotary drum 32, the rotating drum 32 is
The pulling force in the counterclockwise direction disappears, and the rotating drum 32
Rotates clockwise in FIG. 2 due to the elasticity of the spring 36. Thereby, the operation cord 26 is wound around the rotary drum 32, and the support member 28 rotates clockwise in FIG. 2 integrally with the rotary drum 32 via the rotary shaft 30. As a result, the outdoor ladder cord 24 is unwound from the support member 28 and the indoor ladder cord 24 is wound around the support member 28. For this reason, the slat 20 rotates clockwise in FIG. 2 and inclines so that its outdoor end is located downward and its indoor end is located upward.

[0010]

According to the present invention, since the rotating drum is always provided with a force to rotate in the winding direction of the operation cord by the spring, when the operation cord is raised, the rotating drum is surely rotated by the amount of the operation cord rise. The rotation of the slat is improved, and the shielding property when the slat is fully closed is excellent. Since the rotation of the slat is performed by winding and unwinding the ladder cord by the support member, it is not necessary to strictly set the degree of tension of the ladder cord. Thereby, the assembling work is easy. Since the ladder cord is not pulled by any extra force other than the weight of the slat, no extra force is applied to the slat. Therefore, the slat is not drawn to the glass on the indoor side, and an excellent appearance is obtained. Since the rotating drum can be arranged at the side end of the double glazing, the operation cord can also be arranged at the side end, and an excellent appearance can be obtained.

[Brief description of the drawings]

FIG. 1 is a view of a main part of a double-glazed glass built-in blind device of the present invention.

FIG. 2 is a side sectional view of a double-glazed glass blind device.

FIG. 3 is a diagram of a rotary shaft driving device.

FIG. 4 is a view of the rotary shaft driving device of FIG. 3 viewed from the direction of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Double glass 12 Frame 18 Blind apparatus 20 Slat 22 Head box 24 Ladder code 26 Operation code 28 Support member 30 Rotary shaft 31 Rotary shaft drive 32 Rotary drum 34 Drum receiver 36 Spring 38 Magnetic body 42 Magnet 48 Fixed drum

Claims (1)

(57) [Claims] 1. A blind device provided inside a double glazing constituted by a pair of glasses provided in parallel with each other with a frame having a rectangular cross section sandwiched from both sides, wherein the upper frame is provided. A blind device having a head box attached to the lower surface of the vehicle and a plurality of slats supported in alignment by the ladder cord, wherein the ladder cord is wound and unwound in the head box. A member, a rotating shaft connected to the supporting member so as to be integrally rotatable, and a rotating shaft driving device capable of rotating the rotating shaft are arranged. The rotating shaft driving device can rotate integrally with the rotating shaft. A rotary drum, and a drum receiver that rotatably supports the rotary drum,
An operation code that can be wound and unwound on a rotating drum, a magnetic material attached to the end of the operation code, a magnet that can operate the operation code by adsorbing the magnetic material across a glass, and be serially connected to the rotating drum. And a spring provided on the outer periphery of the rotating drum and the stationary drum and constantly biasing the rotating drum in the operation cord winding direction. Blind device with built-in multi-layer glass.