JPH0886168A - Blind built-in double layer sheet glass - Google Patents

Abstract

PURPOSE: To prevent overturning of a slat by passing a wire, both ends of which are connected to the upper and lower parts of a frame to be tensely stretched loosely through opening holes formed on the one side end parts of many slats in the lengthy direction. CONSTITUTION: A clearance space 9 is sealed from the outside air by two glass sheets 1, 2 and frames 301, 302... for surrounding the peripheral edges of the glass sheets, and a blind formed by suspending many slats 8, 8... vertically spaced from each other by a ladder cord is stored in the space 9. Subsequently, opening holes 82 are disposed near the end parts of the respective slats 8, 8..., and an overturning preventing wire 50 stretched in the vertical direction is passed through the opening holes 82. The upper and lower ends of the wire 50 are respectively passed through the shaft parts of compression coiled springs 51, 53, connected to rivets 52, 54, and fixed to an upper spacer 301 and a lower spacer 302 to tensely stretch the wire 50 with the moderate compression of the springs 51, 53 applied thereto. Thus, overturning of the slats 8 can be prevented by loosely passing the wire 50 through the slats 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-glazing unit with a built-in blind, and more particularly to a mechanism for stabilizing the slat assembly state in a double-glazing unit that does not have a slat lifting mechanism.

[0002]

2. Description of the Related Art Conventionally, there have been two types of double-glazing with a built-in blind with or without a built-in blind slat elevating mechanism. It consists of an outer glass and a four-sided frame-shaped frame body (the upper, lower, left and right frame sides forming this frame are usually called "spacers") assembled to the peripheral edge of these glasses, and the gap formed by these In the space (internal space), there are built-in blinds that support a large number of slats vertically with a predetermined interval by ladder-shaped ladder cords, and a rotary shaft that hangs the ladder cords for adjusting the light shielding state. It has a structure that allows it to be rotated manually from the outside.
No. 95, JP-A-2-46160, Jpn.
A number of proposals have been made, such as No. 7, No. 5-67794 of Kaikaidaira.

[0003]

By the way, in addition to a rotating operation mechanism for tilting the slat posture for adjusting the light shielding state, a slat elevating mechanism for folding up the slat provided in a general blind is used. The inventor has found that the double-glazing type that is not provided has some problems to be solved due to the lack of the lifting cord of the lifting mechanism.

That is, in this type of double-glazing glass with built-in blinds, the slat, which is normally provided with a certain curved shape after being assembled to the window, falls on the ladder cord due to a rough tilting operation or the like. It may not be impossible to turn it over, and such a fall of the slat causes a fatal defect in the adjustment function of the light-shielding state. And such a fall of the slat was prevented by a lifting cord penetrating the slat in the vertical direction in a general blind, but a mechanism for preventing the double glazing of the present invention that does not have a lifting mechanism has a mechanism for preventing it. Absent.

As described above, in the double-glazing unit having no elevating mechanism, since there is no cord penetrating the slats in the vertical direction, the slats cannot be positioned in the longitudinal direction, and therefore, the slats cannot be positioned until the vertical spacers are assembled. It is necessary to work carefully so as not to slip off in the lateral direction, which puts a heavy burden on the assembly worker and causes a decrease in work efficiency.

Further, in the case of a double-layered glass with a built-in blind, for the purpose of facilitating the rotating operation of the slats, the glass is sandwiched at a lower position apart from the upper spacer, and the pulley is housed in the inner space in a non-contact manner by a magnetic action. A structure that gives a rotational force, for example, a dial that has a magnet and is artificially rotated while being in contact with the outer surface of the glass, and a magnet that has a magnet and is driven by the rotation of the dial by the interaction of the magnets. Assemble a driven pulley that rotates coaxially while contacting the inner surface of the glass so as to hold the glass at a position separated from the upper spacer of the frame downward, and transfer the rotation axis of the blind rotation shaft and the driven pulley. A configuration in which the cords are connected is preferably used. However, in such a configuration, it is necessary to make some slats short so as not to overlap with the installation portion of the driven pulley.Since these short slats cannot be laterally positioned by the vertical spacers, a mechanism that replaces them is necessary. Become.

However, even in the above-mentioned various proposals for the blind-embedded double-glazing unit which is not provided with the conventional slat lifting mechanism, neither solution means for them nor problem is pointed out.

The present invention has been made in order to solve these problems found by the present inventor, and its purpose is to reliably prevent the slat from falling (turning over) which causes a fatal defect in the light-shielding state adjusting function. It is an object of the present invention to provide a double-glazing unit with a built-in blind having a slat fall prevention means that can prevent it.

Another object of the present invention is to reliably prevent the slats from falling off in the lateral direction during the final assembly work for assembling the double glazing, thereby facilitating the work. An object of the present invention is to provide a double-paned glass with a built-in blind, which can facilitate the work of assembling in a factory for convenience of assembling work and transportation between improvements.

Still another object of the present invention is to provide a slat rotation operation mechanism such as a driven pulley provided inside the glass when a part of the slat is made short so that the slat does not overlap the installation portion of the mechanism. The purpose is to provide lateral positioning means for the short slats.

[0011]

Means for Solving the Problems A feature of the blind-incorporated double-layer glass according to the present invention that achieves the above-mentioned object is that a rectangular quadrangular frame is assembled to the peripheral edges of two glasses facing each other with a gap between them. The space is sealed from the outside air, and a blind having a rotary shaft for light-shielding state adjustment that rotatably suspends a large number of slats vertically spaced by a ladder cord is housed in the clearance space, and the rotary shaft is It is said that in the double-glazing glass with built-in blind, which is provided with a rotation operation mechanism that is rotated from the outside, a linear slat fall-prevention means is provided which vertically penetrates through one end portion in the longitudinal direction of the plurality of slats or in the vicinity thereof. It is in the structure.

In the above construction, the linear slat fall-prevention means can be loosely fitted and penetrated in the vertical direction by providing a notch at the end of the slat to prevent the fall. In addition to this, in order to perform positioning in the lateral direction (longitudinal direction) as well, an opening hole provided near the end of the slat, particularly an oval shape elongated in the slat width direction to improve lateral positioning performance. It is desirable that the slat fall prevention means be loosely fitted and penetrated into the opening hole of the.

The above-mentioned linear slat fall prevention means is a flexible wire which has both ends connected to the upper and lower portions of the frame and is stretched and tensioned, or the upper and lower ends of a rigid rod made of metal or the like. It can be formed by fixing it to the body. In particular, the linear slat fall prevention means is composed of a wire, and the connection between at least one end of this wire and one of the upper and lower portions of the frame body,
More preferably, it is configured so as to be performed via a spring that absorbs the expanded space when the space between the upper and lower portions of the frame body is expanded by expansion or compression. By doing so, it is possible to perform the work for finally assembling the double-glazing with built-in blind in a state where the wire is stretched. As the above wire, it is preferable to use a steel wire, a plastic wire, a twisted wire thereof, or the like, which does not substantially expand even after long-term use.

The blind built-in double glazing of the present invention constitutes a glass window by incorporating a glass window structure consisting of a quadrangular frame and two pieces of glass into a window opening of a building. The glass has a substantially fixed structure in which the glass cannot be removed by the glass beads.

The above-mentioned "frame body" is usually formed by connecting upper and lower and left and right spacers made of aluminum mold material with four corner blocks made of plastic. These spacers are U-shaped, with an inverted U-shape that opens to the internal space as necessary.
For example, the upper horizontal spacer (hereinafter simply referred to as “upper spacer”) is provided in an inverted U shape with a downward opening so as to accommodate the rotary shaft for suspending the ladder cord therein. It Although transparent glass is used, glass having a structure in which the built-in blind is effective in adjusting the light-shielding state, such as frosted glass, is not excluded.

The interstitial space (internal space) is sealed from the outside air by the glass and the frame body, and is preferably hermetically sealed so as to prevent contamination due to the circulation of the inside and outside air and to prevent dew condensation inside. It is also preferable to enclose and retain dry air in the internal space.

As a particularly preferred structure of the present invention, a dial which has a magnet and is manually rotated while being in contact with the outer surface of the glass, and a dial which has a magnet and the interaction of these magnets causes the dial to rotate. A rotary operation mechanism consisting of a pair of driven pulleys that rotate coaxially while being contacted with the inner surface of the glass is assembled so as to hold the glass at a position apart from the upper spacer of the frame body, and the blind An example is a structure in which a rotary shaft and the driven pulley are connected by a cord for rotation transmission.

According to this structure, since the rotary shaft can be operated by the rotary operation dial type mechanism provided on the outer surface of the glass, it is not necessary to house the operation mechanism in the frame body and the size of the frame body can be reduced. The glass aperture ratio can be increased. Since the rotating operation mechanism outside the glass is independent of the driven pulley in a non-contact manner, the internal space can be reliably and reliably sealed from the outside air, and the need for blind cleaning is eliminated. There is no condensation problem. Since the position of the rotary operation mechanism can be easily selected and arranged by the operator, the glass back dimension is not restricted. Since the structure is simple and the number of parts is small, the semi-assembling work in the factory is easy and the final assembling work at the installation site is also easy. Even if a short slat is used in part to avoid duplication with the rotary operation mechanism, the opaque dial holder can cover the area where the slat is not extended to secure the light blocking effect. This is because various effects such as

As the rotary operation dial type mechanism, for example, a dial main body containing a rare earth element magnet such as a samarium-cobalt magnet or a neodymium magnet and a peripheral edge of the dial main body are rotatably held and attached to the outer surface of the glass. There is a combination with a perforated dial holder that can be used.Using such a perforated dial holder makes positioning and assembling of the dial much easier, and after installation, The position of the dial is fixed and the certainty of the operation can be secured, and by using the opaque dial holder, it is possible to cover the range where the slats are not extended and provide the light shielding property.

[0020]

According to the present invention, when a slat falls which is a fatal defect of light shielding adjustment that may be caused by a rough rotation operation, a linear slat fall prevention means such as a wire is loosely fitted and penetrated into the slat. By doing so, it can be reliably prevented. In addition, the fall prevention means that the slats are rotated by about 180 ° between two substantially vertical postures in order to adjust the light shielding state, but the bent slats are turned upside down so that they are convex downward. To stop.

Further, lateral positioning of the slat can be surely provided by loosely fitting and penetrating the slat opening hole of the wire or the like.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be further described below based on the embodiments shown in the drawings.

FIG. 1 is a front view showing a partial cross section of the structure of the double-glazing unit with a built-in blind according to this embodiment.

In FIG. 1, reference numeral 1 is a rectangular indoor side glass, and 2 is an outdoor glass of the same shape located on the back side of the indoor glass 1 in the figure. A rectangular frame-shaped frame 3 is assembled in between,
An internal space 9 is formed inside thereof.

The frame body 3 is composed of an upper spacer 301, a lower spacer 302, and a vertical spacer 3 made of an aluminum member.
03 and 304, and plastic corner blocks 305 to 308 that connect them at the corners of the frame.

The upper spacer 301 has an inverted U-shape with a downward opening, in which the rotary shaft 4 is extended along its lengthwise direction, and a ladder cord is provided at a pair of left and right positions on the way. The hanging drums 5 and 5 are axially mounted so as to rotate integrally with the rotary shaft 4. Further, at one end (left side in FIG. 1) of the rotary shaft 4, a rotary operation mechanism 4 described later is provided.
A rotation transmission drum 6 to which the rotation from 0 is transmitted is similarly mounted on the shaft.

The ladder cords 7, 7 whose upper ends are connected to the above-mentioned ladder cord suspension drums 5, 5 are suspended below the inner space so that a large number of slats 8, 8 ... It is supported at intervals.

In the present example, an opening hole 82 is formed in the vicinity of the end portion (right end portion in FIG. 1) of each of the slats 8, 8 ... The fall prevention wire 50 stretched in the vertical direction is provided so as to pass therethrough. The wire 50 has a function of preventing the slats from falling and a positioning function in the longitudinal direction, and has an upper end fixed to the upper spacer 301 and a lower end fixed to the lower spacer 302, which will be described in detail later.

As shown in FIG. 1, a part of the slat of the present embodiment (designated by reference numeral 801 in FIG. 1) is provided in a short length so as not to overlap the structure with a rotary operation mechanism 40 described later.

The rotary operation mechanism 40 for rotating the rotary shaft 4 will be described below.
In the case of 0, a plate-shaped dial holder 401 having a circular opening 402 is adhesively fixed to the glass 1 with an adhesive, and is circularly rotatably attached to a stepped holding portion (not shown) provided on the inner edge of the opening of the dial holder 401. The dial 403 is assembled to form a rotating portion that can be manually operated, and the driven rotating portion is arranged to face the inner space 9 while sandwiching the glass 1.

The circular dial 403 of this example is
Six magnets 404 and 405 along the circumferential direction (the magnet with the N pole facing the glass surface is indicated by 404, and S on the glass surface).
The magnets whose poles face each other are indicated by 405) are incorporated at approximately equal intervals so that the N poles and the S poles alternately face the glass surface, and these magnets 404 and 405 are arranged on the opposite side of the glass surface. It is provided in a structure having a circular iron plate for forming a magnetic circuit on its surface. The surface of the dial 403 that comes into contact with the glass is preferably covered with a gas impermeable film (not shown) having a low friction coefficient in order to prevent rust and the sliding resistance of the built-in iron plate or the like.

A driven pulley (not shown) constituting a driven rotating portion arranged in the internal space is a magnet 40 of the dial 403.
The disk has six magnets installed so that the poles opposite to 4,405 face each other, and the pulley shaft is provided at the rear end opposite to the glass 1.

Since the artificial operation rotating part and the driven rotating part have magnets which exert an attractive force mutually facing each other, by rotating the dial 403, the driven pulley in the internal space is rotated. It rotates in the non-contact state.

This rotation is transmitted to the rotation shaft 4 through a rotation transmission mechanism composed of a driven pulley and a rotation transmission cord 410 arranged along the outdoor glass 2. 6. In this example, the rotation transmission cord 410 is configured by connecting the ends of two cords provided for clockwise rotation and counterclockwise rotation to the rotation transmission drum 6 and the driven pulley, respectively. Without limitation, a loop-shaped cord may be wound around these two axes.

Next, the fall prevention wire 50 will be described with reference to FIGS. 2 and 3 in which the wire tension portion is enlarged.

In these figures, the corner block 306 at the upper right corner of FIG. 1 is L-shaped, and the leg portion is fitted into the upper end opening of the vertically open vertical pentagonal columnar spacer 304 without backlash. 3061 and an arm portion 3062 that fits into the right end opening of the inverted U-shaped upper spacer 301 without backlash, and this arm portion 3062 has a spring accommodating hole opened at the tip as shown in FIG. It is provided in the shape of a bottomed cylinder having 3063, and is provided with a retaining projection 3064 that fits into a retaining hole on the side wall of the upper spacer. Further, a wire insertion hole 3065 of the wire 50 is opened in a side wall of the arm portion 3062 facing downward of the spring accommodating hole 3063 so as to face a position near the bottom of the spring accommodating hole 3063, and as shown in FIGS. The upper end of the wire 50 passes through the shaft portion of the compression coil spring 52 housed in the wire insertion hole 3065 and then in the spring housing hole 3063, and is connected and fixed to the rivet 51 that engages with the spring tip.
Is provided so as to support the upper end of the.

Similarly, a corner block 307 at the lower corner is provided.
Also has a leg portion 3071 that fits and fits into the lower end opening of the vertical spacer 304 without play, and an arm portion 3072 that fits and fits into the right end opening of the lower spacer 302 without play. Is provided with a spring receiving hole 3073, a retaining projection 3074, and a wire insertion hole 3075. The wire insertion hole 3075 and the compression coil spring 53 are provided.
A rivet 54, which is connected and fixed to the tip of the lower end of the wire 50 that has passed therethrough, is provided to support the lower end of the wire 50 by engaging the tip of the spring.

According to the above construction, the length of the wire 50 and the length of the compression coil springs 51, 53 in the natural state are designed in accordance with the vertical dimension of the frame body when the covering glass is assembled. By setting the wire 50, the wire 50 can be tensioned while the compression coil springs 51 and 53 are appropriately compressed, and the wire 50 penetrating the end opening 82 of the slat 8 loosely fits the wire 50 as shown in FIG. It is possible to surely give the slat a fall-preventing action and the positioning action in the longitudinal direction (the lateral direction in FIG. 1).

Next, the semi-assembly in the factory of the double glazing with built-in blind of the present invention and the final assembly at the assembly site will be described.

FIG. 4 schematically shows this procedure. First, as shown in (a) in the factory, the double glazing of this example inserts the slats 8 at each stage of the ladder cord between the upper spacer 301 and the lower spacer 302 incorporating the rotating shaft and prevents slats from falling. A semi-assembled assembly is formed with the wire 50 loosely inserted and folded, and the pair of vertical spacers 303 and 304 and two glasses (not shown) shown in FIG. Factory shipped as a set. At this time, as shown in (d), the lower end of the ladder cord is provided with a slack A which is slightly longer than the stretched state at the time of final assembly, and the wire 50 is looped to the outside in the middle. Pull it out. The corner blocks 305 to 308 are attached to the left and right of the upper spacer and the lower spacer.

Next, after transporting one set of these semi-assembled double glazings to an assembly site, the upper spacer 301 and the lower spacer 302 are vertically separated from each other as shown in FIG. Vertical spacers 303, 30
Assemble 4. At this time, as described above, the slack A is provided in the ladder cord, and the wire 50 is connected at the ends thereof via the compression coil springs 51 and 53, so that the frame body of the final assembly is The spacing between the upper and lower spacers 301 and 302 can be expanded more than the vertical dimension, and the vertical spacers 303 and 304 can be assembled without any trouble, but the aesthetic appearance after the double glazing is incorporated into the window is improved. A winding means may be provided to draw the slack A into the lower spacer 302 so as not to damage it. Instead of this slack, a weight bar independent of the lower spacer 302 may be attached to the lower end of the ladder cord. Good. In addition, prior to assembling the vertical spacers,
In this example, the rotation transmission cord 410 is connected between the rotary operation mechanism of the dial type and the driven pulley thereof and the rotation transmission drum 6.

The blind-embedded double-layer glass thus finally assembled is incorporated in a predetermined window portion.

FIG. 5 shows a state (corresponding to (b) of FIG. 4) when the rotary operation mechanism (not shown) and the vertical spacers 303 and 304 are assembled to the semi-assembled body.

According to this structure, the semi-assembled body shown in FIG. 4A can be efficiently assembled by using various devices prepared and installed in the factory, and the work load on the site can be reduced. Can be reduced.
Further, according to the structure of the multi-layer blind of this example, since this semi-assembled body can be formed in a state in which the wire 50 for preventing fall is loosely fitted and penetrated into the opening hole of the slat 8, the slat is in the middle of transportation. There is no problem that is dropped from the ladder cord in the lateral direction (long direction),
In addition, since there is no problem of slipping off even in the field work, there is no burden on the operator in this final assembly work (load of paying attention to slipping out of slats), and work can be performed easily and quickly. It will be possible.

FIG. 6 shows another embodiment of the present invention. In this example, the corner blocks 306, 3 in which the wire 50 is stretched on both ends of the vertical spacer 304 are shown.
07 is assembled and the first semi-assembled body is formed in a state of being penetrated through the opening hole 82 of the slat 8 when the wire 50 is stretched, while all other configurations (upper spacer 301 , Lower spacer 30
(2, vertical spacers 303, blinds, etc.) are separately formed as a second semi-assembled body, and the first semi-assembled body is slidably suspended by the vertical spacers 304 in the state shown in the drawing, and the rotary operation mechanism is lowered. The case where the final assembling work is performed by lowering the slats so that the slats are inserted into the predetermined steps of the ladder cord 7 with respect to the second semi-assembled body in the laterally placed state on the side.

Even in this case, the above-mentioned semi-assembled bodies can be efficiently formed by utilizing various devices prepared and installed in the factory, and the final assembly can be performed in the same factory or in another factory. By doing so, it is possible to make the assembling work easy and quick.

In each of these examples, the wire 5
0 is also effective as a window to prevent the slats from falling after being incorporated, and has the effect that the work during assembly can be performed easily and efficiently by the lateral positioning action, and in the illustrated embodiment. Although some of the slats are provided in a short length in order to avoid overlapping with the rotary operation mechanism, it can be seen that the wire 50 also effectively acts on the positioning of the short slats 81.

[0048]

EFFECTS OF THE INVENTION According to the double glazing with a built-in blind of the present invention having the above-mentioned constitution, the fall of the slat (inversion) which causes a fatal defect in the adjusting function of the light-shielding state can be easily carried out by tensioning a wire or the like. The effect that it can be surely prevented by adopting the configuration is obtained.

Further, since the slats are surely prevented from slipping off in the lateral direction, in the final assembly work before assembling into the building window, it was conventionally carefully performed so as to prevent the slats from slipping off. This has the effect of reducing the work load.

Further, there is an effect that the work of semi-assembling the upper spacer, the lower spacer and the blind in the factory becomes easy.

Furthermore, since the slat rotation operation mechanism is provided inside the glass, if the slat of the portion where the overlap with this mechanism is a problem is made short, the lateral positioning of the short slat can be ensured. The movement of the short slats does not hinder the light blocking state.

Further, if the slat fall prevention means such as a wire is arranged at a position where it cannot be seen by a gasket or the like when the blind-embedded double-glazing unit is installed in the window portion, there is no problem in terms of design. There is an effect.

[Brief description of drawings]

FIG. 1 is a front view including a partial cross-section showing an example of a configuration outline of a double-glazing glass with a built-in blind according to the present invention;

FIG. 2 is an enlarged vertical front view showing the wire assembly portion of FIG.

FIG. 3 is a component development view illustrating the configuration of the wire tensioning means in FIG.

FIG. 4 is a diagram for explaining a procedure for assembling the double-glazing unit with a built-in blind shown in FIG. 1 at an execution site;

FIG. 5 is a diagram for explaining a state when the vertical spacer is assembled in the procedure of FIG. 4;

FIG. 6 is a view showing another method of assembling the double-glazing unit with a built-in blind.

[Explanation of symbols]

1 ... Indoor glass, 2 ... Outdoor glass, 3 ... Frame, 4 ...
Rotation shaft, 5 ... Ladder cord suspension drum, 6 ... Rotation transmission drum, 7 ... Ladder cord, 8 ... Slat, 9 ... Internal space, 40 ... Rotation operation mechanism, 50 ... Wire, 51, 53
... compression coil springs, 52, 54 ... rivets, 301 ... upper spacers, 302 ... lower spacers, 303, 304 ...
Vertical spacers, 305 to 308 ... Corner blocks, 30
61, 3071 ... Legs, 3062, 3072 ... Arms, 3
063, 3073 ... Spring accommodation holes, 3064, 3074 ...
Retaining protrusion, 3065, 3075 ... Wire insertion hole,
401 ... Dial holder, 402 ... Step holding portion, 40
3 ... Dial, 404, 405 ... Magnet, 410 ... Rotation transmission code.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichiro Yoshida 3-15-4 Nihonbashi, Chuo-ku, Tokyo Within Nichibei Co., Ltd. (72) Nobuo Aizawa 3-15-4 Nihonbashi, Chuo-ku, Tokyo Nichibei Co., Ltd. (72) Inventor Akira Sone 3-15-4 Nihonbashi, Chuo-ku, Tokyo Within Nichibei Co., Ltd.

Claims (4)

[Claims] 1. A rectangular quadrilateral frame is attached to the peripheral edges of two glasses facing each other with a gap therebetween to seal the gap space from the outside air, and a large number of slats vertically spaced by a ladder cord are suspended. In a multi-layer glass with a built-in blind in which a blind having a rotary shaft for adjusting the light-shielding state is housed in the gap space, and a rotary operation mechanism for rotating the rotary shaft from the outside is provided, in the longitudinal direction of the plurality of slats. A glazing with a built-in blind, characterized in that a linear slat fall prevention means is provided which vertically penetrates one end portion or the vicinity thereof in a vertical direction. 2. The blind built-in compound according to claim 1, wherein the linear slat fall-prevention means is an easily bendable wire which is tensioned by connecting both ends to upper and lower portions of a frame body. Layered glass. 3. The spring according to claim 2, wherein at least one end of the wire and one of the upper and lower portions of the frame body are connected to each other by absorbing or expanding the distance between the upper and lower portions of the frame body by expansion or compression. Double-glazing with a built-in blind, which is characterized by being performed through. 4. The method according to claim 1, wherein
The double glazing with a built-in blind, wherein the linear slat fall-preventing means is one that loosely fits and penetrates into an opening provided near the end of the slat.