JPH0519518Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a slat drive device for raising and lowering and adjusting the angle of the slats of a blind built into a double glass sash. The present invention relates to a lid member that opens and closes an insertion hole exposed to the outside.

(Prior Art) Conventionally, double-glazed glass sashes have been constructed in order to improve heat insulation and sound insulation, and blinds are suspended and supported between the double-glazed windows, which have been put into practical use. Raising and lowering the slats of such blinds and adjusting their angles are performed by operating an operating section provided in the sill frame. In particular, the slats are raised and lowered based on the operation of the operating section provided within the upper stile of the sash. This was done by winding a slat lifting cord around a take-up pulley.

In the slat elevating mechanism as described above, as the height of the blind increases, the length of the elevating cord to be wound becomes longer and the diameter of the winding pulley must be increased. However, when the diameter of the take-up pulley becomes large, there is a problem that it cannot be stored in a thin sash. Therefore, in order to solve this problem, the lifting cord is routed inside the frame of the sash, and a part of the lifting cord is exposed to an operating section provided in the enclosure, and the lifting cord is operated using the operating section. A slat elevating device has also been proposed in which the slat can be raised and lowered.

(Problem that the invention aims to solve) However, in such a lifting device, the room and the inside of the main frame communicate with each other through the insertion hole for exposing a part of the operating cord to the operating section, and the main frame connects to the head box. Since it communicates with the glass plates of the double glass sash through the glass plate, there was a problem in that dew condensation was likely to occur on the inside of each glass plate.

Effects of the invention (Means for solving the problems) This invention solves the above problems by suspending and supporting a blind between double panes of glass, and by creating an operating code for raising and lowering the slats of the blind. In this blind, the slats can be raised and lowered by guiding the slats into the rigid frame of the sash, exposing the operating cord to the outside through the insertion hole of the operating part provided in the rigid frame, and operating the operating code to raise and lower the slats. A lid member that is movably attached to the housing and closes the insertion hole in a sealed state when the operating cord is not in use, and that exposes the operating cord stored in the rigid frame to the outside again from the rigid frame when the opening operation is performed to open the closure. is provided in the operating section.

(Function) By the above means, the insertion holes 44, 4 can be inserted into the lid member 28.
When the window 5 is closed in an airtight state, air circulation between the room and the glass plates of the sash 1 is blocked, so that dew condensation on the inside of each glass plate is suppressed. Further, along with the opening operation of opening the closure, the cord protrusion 49 is rotated to expose the operation cord 24 to the outside again.

(Example) Hereinafter, an example embodying this invention will be described with reference to the drawings. The sash 1 shown in FIG. The blind 2 is a fixed type that is fixed to the window frame so that it cannot be opened or closed, and the blind 2 is suspended and supported between the double panes of glass. The blind 2 has multiple tiers of slats 5 supported by two ladder cords 4 which are suspended and supported from a head box (described later) stored in the upper stile 3 of the sash 1, and each slat 5 supports the ladder cord 4. An elevating cord 6 is inserted near the lower end of the elevating cord 6, and a bottom rail 7 is suspended from the lower end of the elevating cord 6. The slat 5 can be raised and lowered by operating the operating part 9 provided slightly above the center of the rigid frame 14 of the sash 1 to raise and lower the bottom rail 7. By rotating the angle adjustment shaft (described later), the angles of each slat 5 can be adjusted in the same phase via the ladder cord 4.

Next, the slat lifting device for the blind 2 will be explained in detail. As shown in FIG. It is fitted into a double glass structure, and the glass plate 12
The multiple stages of slats 5 are suspended and supported between them. As shown in FIGS. 1 and 2, a head box 13 is fixed above each slat 5 within the upper stile 3 of the sash 1, that is, between the upper stile of the inner sash 10 and the outer sash 11. Also, the fourth
As shown in the figure, the hard frame 14 of the inner shoji 10 is composed of a cylindrical part 15 located on the side of the glass plate 12 and a groove part 16 located on the side of the blind 1.

As shown in FIG. 5, a tilter box 17 is fitted on one side of the headbox 13, and two guide rollers 18 are attached to the tilter box 17.
is rotatably supported near the edge of the head box 13. Then, the two lifting cords 6
is inside the head box 13 and this guide roller 1.
8 into the groove 16 of the rigid frame 14. As shown in FIG. 1, the upper end of the lifting cord 6 is latched to a latch protrusion 19 provided at the tip of the tilter box 17, and the elevating cord 6 is latched to a latch protrusion 19 provided at the tip of the tilter box 17. A lifting runner 20 constituting a movable pulley is hung on the cord 6. That is, the lifting runner 20 has a pulley 22 on the main body 21.
is rotatably supported, and its pulley 22 is hung with a lifting cord 6. Therefore, the lifting runner 22
When the slats 5 move downward in the groove 16, the lifting cord 6 is pulled out from the head box 13 downward in the groove 16 of the frame 14, so that the slats 5 are pulled up together with the bottom rail 7 in order from the lower one, and the lifting runner 20 is pulled up. When moving upward, the weight of the bottom rail 7 causes the lifting cord 6 in the groove 16 to
is pulled into the head box 13, and the bottom rail 7 is lowered to return to the state where it is supported by the ladder cord 4 from the upper slat 5.

Guide pieces 23 extending forward are formed on both front sides of the lifting runner main body 21, and the guide pieces 23
The tip of the lifting runner 2 is in contact with the rear surface of the cylindrical portion 15.
0 is positioned in the front-back direction.

As shown in FIGS. 1 and 6, the lifting runner 20 has an operating cord 24 installed below the pulley 22.
The upper end of is latched. The operating cord 24 is led downward from the lift runner 20 into the groove 16, and then hung on a fixed pulley 6 rotatably supported and fixed to the lower part of the groove 16 via the main body 25, and guided upward. After being inserted into the operating portion 9, it is guided downward again so that its lower end is connected to the fixed pulley body 25.
It is hung on. A balance weight 53 is hung on the operating cord 24 between the fixed pulley body 25 and the operating section 9, so that the operating cord 24 between the two is tensioned.

Next, the structure of the operation section 9 will be explained in detail.
As shown in FIG. 3, the operation unit 9 mainly includes a cover 27,
It is composed of a cover plate 28, a back plate 29, and a stopper device 30, and the cylinder part 15 of the solid frame 14 of the inner shoji 10
It is attached to front and rear attachment holes 31a and 31b (see FIG. 2) that are provided so as to penetrate through the.
The cover 27 has a frame portion 33 formed behind the front piece 32, and can be inserted into the front mounting hole 31a with the front piece 32 left as shown in FIG. An opening 27a is formed therein.

Guide grooves 34 are formed in the front pieces 32 of the cover 27 to face each other, and the cover plate 28 molded from synthetic resin or the like is supported in the guide grooves 34 so as to be movable up and down. That is, the lid plate 28 has a finger hook 35 formed at its front upper end, and a driving protrusion 36 for operating a cord ejection, which will be described later, at its rear upper end. Further, a hemispherical positioning protrusion 37 is formed at the lower end of the rear surface of the lid plate 28.
A positioning hole 38 is formed in the lower part of the front piece 32 of the cover 27, into which the positioning protrusion 37 can be fitted. The cover plate 28 can be moved up and down with both sides supported by the guide groove 34, and can be supported at any position by friction with the guide groove 34, as shown in FIG. Lid plate 28
When the positioning protrusion 37 is raised to the upper limit position, the positioning protrusion 37
is fitted into the positioning hole 38 and stably held in this position, so that the inside and outside of the cylindrical portion 15 are shut off.

As shown in FIG. 14, the rear surface of the cover 27 is provided with a pair of upper and lower screw holes 39a, 39b, and the back plate 29 is provided with the screw holes 39a, 39b.
A through hole 40 is formed at a position corresponding to the hole 39b, and the back plate 29 is screwed to the rear surface of the cover 27 through one of the screw holes 39a. The back plate 28 is the cover 2
A rectangular hole 41 is formed with a width equal to half the width of the opening 7.

The other screw hole 3 of the cover 27 is located behind the back plate 29.
The stopper device 30 is fixed using 9b. That is, the stopper device 30 has an edge 42 formed on its outer periphery that engages around the rear attachment hole 31b of the cylindrical portion 15, and the edge 42 is applied from the rear around the rear attachment hole 31b to the screw hole 39b. By screwing in the screw 43, the cover 27 and the stopper device 3 are removed.
0, the cylindrical portion 15 is sandwiched. Therefore, the cover 27 and the stopper device 30 are attached to the cylindrical portion 15.
are fixed to the mounting holes 31a, 31b of the cylinder part 15, and even if the longitudinal length of the cylindrical part 15 becomes large, it can be easily accommodated by adjusting the length of the screw 43.

The upper part of the stopper device 30 is connected to the square hole 4 of the back plate 29.
1 into the opening of the cover 27 and for passing the operating cord 24 from the groove 16 into the cover 27. A lower insertion hole 45 is formed.

A guide roller 46 is provided at the rear of the upper insertion hole 44.
is rotatably supported, the base end of a stopper arm 47 is rotatably supported at the front part, and the stopper arm 47 has an uneven surface 48 at its tip to prevent slipping.
is formed.

A cord protrusion 49 is rotatably supported below the opening 27a of the cover 27. That is, the cord protrusion 49 is formed in the shape of a square frame, and hemispherical support protrusions 50 are formed on both sides of its base end, and the support protrusions 50 are connected to the support provided on the inner surface of the opening 27a of the cover 27. It is rotatably supported in the recess 51. Also, the cord protrusion 4
A protrusion piece 52 is formed at the base end of the cord protrusion 49 and protrudes forward when the cord protrusion 49 is rotated in the vertical direction. When the cover plate 28 is moved downward, the drive protrusion 36 of the cover plate 28 comes into contact with the protrusion 52 as shown in FIG.
The tip of the can be rotated forward.

For the operating section 9 configured in this manner, the operating cord 24 led from the fixed pulley 26 is connected to the operating section 9.
The cord is guided from behind, that is, within the groove 16 of the rigid frame 14, through the guide roller 46 of the upper insertion hole 44 and above the stopper arm 47, into the opening 27a of the cover 27, and into the cord protrusion 49 from the front inside the opening 27a. After being inserted, it is guided from the opening 27a through the lower insertion hole 45 and into the groove 16 to the balance weight 53 again. Since the operating cord 24 is constantly pulled in the direction of arrow A by the weight of the bottom rail 7 and the slat 5, the stopper arm 47 is rotated upward due to friction between the operating cord 24 and the unevenness 48 of the stopper arm 47. As shown in FIG. 8, the operating cord 24 is normally pinched between its unevenness 48 and the upper surface 44a of the upper insertion hole 44, and is prevented from moving in the direction of arrow A. Furthermore, when the cover plate 28 is moved downward, the tip of the cord protrusion 49 rotates forward and protrudes as shown in FIG. 9, and the operating cord 24 is exposed to the outside again. When the operation cord 24 is disengaged from the stopper arm 47, the operating cord 24 can be pulled out in the direction of arrow B, that is, forwardly.If the operating cord 24 is held in the horizontal direction as shown in FIG. The operating cord 24 can be moved in the direction of arrow A using the weight of the bottom rail 7 and the like.

On the other hand, when the operation cord 24 is operated as described above, the lifting runner 20 is raised and lowered along the rear surface of the cylindrical part 15, but even if the lifting runner 20 reaches the rear of the operating part 9, the stopper device is exposed on the rear surface of the cylindrical part 15. 30 rear part is avoided by the guide piece 23 of the elevating runner 20, so there is no problem in elevating the elevating runner.

Next, the slat angle adjustment mechanism will be explained. As shown in FIG.
The tilter drum 54, which is rotatably supported by the tilter drum 54, has one end protruding into the head box 13, and one end of a slat angle adjusting shaft 55, which is rotatably supported within the head box 13, is fitted into the center of the tilter drum 54, so that the same angle can be adjusted. The shaft 55 is the tilter drum 5
It is designed to rotate together with 4. and,
When the angle adjustment shaft 55 is rotated, the ladder cord 4 is driven based on a known angle adjustment mechanism, so that the angles of each slat 5 are adjusted in the same phase.

As shown in FIG. 1, an angle adjustment cord 56 for rotationally driving the tilter drum 54 is hung around the tilter drum 54, a tilt pulley 57 that can be rotated by the operating section 9, and a cord guide 58. To explain the structure of each part, two rollers 59 are rotatably supported in series diagonally below the tilter drum 54 in the tilter box 17, and an angle adjustment cord 56 wound around the tilter drum 54 several times is attached to the rollers 59. is guided downward through.

A cylindrical bearing part 60 is formed in the upper part of the operating part 9, and as shown in FIG. 63. A shaft portion 65 of the operating knob 64 is inserted into the bearing portion 60 from the front, and a shaft portion 66 of the tilt pulley 57 is inserted from the rear, and both are fixed with a screw 67. When the operating knob 64 is rotated, the tilt pulley 57 is rotated together with the operating knob 64, with the flange portion 68 provided on the operating knob 64 in close contact with the step 61. One side of the angle adjustment cord 56 hanging down from the tilter drum 54 is wound around the tilt pulley 57 several times and then guided downward.

A cord guide 58 is located below the operating section 9 in the cylindrical section 1.
5 It is attached to the rear surface. The code guide 58
A pulley 71 is rotatably supported on the plate 70, the lower endless edge of the angle adjustment cord 56 is hung on the pulley 71, and a long hole 72 in the rigid direction is formed in the center of the plate 70. The plate 70 can be crimped onto the cylindrical portion 15 by screwing a screw 73 passing through the elongated hole 72 into a screw hole provided in the cylindrical portion 15. Therefore, long hole 7
Since the attachment position of the cord guide 58 to the cylindrical portion 15 can be adjusted within a range of , the cord guide 58 is attached at a position where the angle adjustment cord 56 is tensioned. The angle adjustment cord 56 has both ends connected by a tilt pulley 57, making it endless.

Next, the operation of the slat lifting device constructed as described above will be explained.

Now, as shown in FIG. 6, when the bottom rail 7 is lowered to the lowest position, the lifting runner 2
0 is raised to the vicinity of tilter box 17,
The balance weight 53 has also been pulled up to the vicinity of the fixed pulley 26. In order to pull up the bottom rail 7 and slats 5 from this state, first
Push down the cover plate 28 of the. Then, as shown in FIG. 9, the drive protrusion 36 provided on the cover plate 28
comes into contact with the protruding piece 52 of the cord protrusion 49 and pushes it downward, so that the upper part of the cord protrusion 49 is rotated forward and the operating cord 24 is protruded to the front of the operating section 9. At this time, since the operation cord 24 guided downward from the operation section 9 is pulled up, the balance weight 53 is pulled up slightly.

In this state, the operation cord 24 is inserted into the stopper device 30.
When the operating cord 24 is pulled out from the upper insertion hole 44, the stopper arm 47 is rotated forward as shown in FIG. 10, so that the operating cord 24 can be freely pulled out.
When the operating cord 24 is pulled out from the upper insertion hole 44 in this state, the lifting runner 20 is pulled down. Then, the lifting cord 6 whose length is twice as long as the descending distance of the lifting runner 20 is pulled out from inside the head box 13, so the bottom rail 7 moves the operating cord 2 by a distance equivalent to twice the pulled-out length of the operating cord 24.
It is pulled up at twice the speed of withdrawal speed of 4.
Further, the operating cord 24 pulled out from the upper insertion hole 44 is moved to the lower insertion hole 4 by the balance weight 53.
5, the balance weight 5
3 gradually decreases. The descending distance is 1/2 of the moving distance of the lifting runner 20 and 1/4 of the moving distance of the bottom rail 7.

When the bottom rail 7 is pulled up to its maximum limit in this way, the maximum descending distance of the lifting runner 20 is /
2, and the maximum moving distance of the balance weight 53 is H/4. Therefore, in this embodiment, since the operating section 9 is located slightly above the vertical center of the sash 1, the lifting runner 20 passes behind the operating section 9 and reaches below the operating section 9.

On the other hand, when lowering the bottom rail 7,
As shown in FIG. 10, when the operating cord 24 is held in a substantially horizontal direction, the weight of the bottom rail 7 is used to draw the operating cord 24 into the upper insertion hole 44, thereby raising the elevating runner 20 and raising and lowering it. The cord 6 can be drawn into the head box 13. After lowering the bottom rail 7 to the desired position, if the operating cord 24 is released, the operating cord 24 is momentarily pulled from the lower insertion hole 45 toward the upper insertion hole 44. The stopper arm 47 is rotated upward due to friction with the unevenness 48 of the stopper arm 47, and as shown in FIG. thwarted. Therefore, when the operating cord 24 is released, the stopper arm 47 is activated instantly and the bottom rail 7 is suspended and supported at a desired position.

When the operation of the operation code 24 is completed, the cover plate 28
When the cord protrusion 49 is pulled upward and the positioning protrusion 37 is fitted into the positioning hole 38, the cord protrusion 49 is rotated upward and returned to its original position, as shown in FIG. It is hermetically closed with a plate 28.

As described above, in this slat drive device, the lifting cord 6 is pulled out from the head box 13 into the groove 16 of the rigid frame 14 by the lifting runner 20 acting as a movable pulley. If the length of the lifting cord 6 is set so that the runner 20 is located directly below the head box 13, the lifting runner 20 will reach H/2 of the height 1 when the bottom rail 7 is pulled up to its maximum limit.
reach the height of. Therefore, as shown in FIGS. 6 and 7, the upper limit of movement of the balance weight 53 is H/
If the length of the operating cord 24 is set so that the height is 4, the operating section 9 can be installed within the height range of H/4 to H/2, and the bottom rail 7
is raised and lowered at a distance and speed that is twice the operating distance and speed of the operating cord 24, making it possible to construct a slat elevating device with excellent operability.

Further, since the operating cord 24 hanging from the lifting runner 20 is hung on a fixed pulley 26 below the operating part 9 and then guided to the operating part 9, the lifting runner 20 can pass behind the operating part 9. Therefore, if the fixed pulley 26 is located within the height range of H/4 to H/2, the mounting position of the operation part 9 can be set at any position above the fixed pulley 26, and the mounting position can be set at any position above the fixed pulley 26. The degree of freedom is further increased, and the operating section 9 can be mounted at an optimal position. Further, since the lifting cord 6 is not wound up inside the head box 13, there is no fear that the head box 13 and the upper stile 3 will become larger.

On the other hand, the operating section 9 is provided with a cover plate 28, so that the interior of the operating section 9 and the inside of the opening 27a of the cover 27 are completely sealed when not in use. Further, even when the cover plate 28 is opened, the opening 27a and the groove 16 of the rigid frame 14 are different from the upper insertion hole 44 and the lower insertion hole 4, which have a small opening area.
5, and the groove 1 is connected from the room to the groove 1.
6 can be reduced.
Therefore, the flow of air from the room through the opening 27a of the cover 27 and the groove 16 between the inner shoji 10 and the outer shoji 11 is substantially blocked, and the inside of the glass plate 12 of the inner shoji 10 and the outer shoji 11 is blocked. It is possible to prevent dew condensation from occurring during operation, and since the operating cord 24 and the stopper device 30 are completely hidden by the cover plate 28 when not in operation, it is also aesthetically pleasing. Furthermore, when the cover plate 28 is opened, the cord protrusion 49 rotates as described above, and the operation cord 24 is again exposed to the outside, so that the operability is extremely good.

In addition, the slat angle adjustment mechanism is operated by the operation knob 64.
By rotating the slat 5, the angle of the slat 5 can be adjusted. Therefore, by rotating the operating knob 64, the angle adjustment cord 56 can be moved a predetermined distance to adjust the angle of the slat 5, and the gap between the operating knob 64 and the bearing portion 60 can be replaced by a conventional sliding member. Since it is not a gap between the angle adjustment cord 56 and the elongated hole, it can be made small regardless of the moving distance of the angle adjustment cord 56. That is,
Since the flange portion 68 of the operation knob 64 is in close contact with the step 61 of the bearing portion 60 and there is little air circulation, it is possible to prevent condensation from occurring due to air leakage from the room to between the glass plates 12.

In addition to the above embodiments, this invention can also be applied to double glass sliding sashes.

Effects of the invention As detailed above, this invention suspends and supports a blind between double panes of glass, guides the operating cord for raising and lowering the slats of the blind into the frame of the sash, and connects it to the frame. In blinds where the operation cord is exposed through the insertion hole of the operation part provided and the slats can be raised and lowered by operating the operation cord, it is possible to prevent condensation from forming on the inside of the double-glazed glass, and further improve operability. It exhibits excellent effects such as extremely good performance.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing a slat elevation and angle adjustment device that embodies this invention, Fig. 2 is a side view thereof, Fig. 3 is a front view showing the entire sash, and Fig. 4 is a slat elevation and angle adjustment device. Cross-sectional view of the rigid frame, No. 5
The figures are cross-sectional views of the tilter box, Figures 6 and 7.
Figure 8 is an explanatory diagram showing the operation of the slat lifting device.
The figure is a longitudinal cross-sectional view of the operating unit, Figures 9 and 10 are longitudinal cross-sectional views showing its use, Figure 11 is a front view of the operating unit, and Figure 12 is a front view of the operating unit with its cover plate open. 13 and 14 are exploded perspective views of the operating section. 1... Satsushi, 2... Blind, 3... Solid frame, 5... Slat, 6... Lifting cord, 9...
Operation unit, 14... solid frame, 24... operation code, 2
8... Lid plate, 44... Upper insertion hole, 45... Lower insertion hole.

Claims (1)

[Scope of utility model registration request] A blind is suspended between the double panes of glass, and the operating cord for raising and lowering the slats of the blind is led into the frame of the sash, and the operating cord is externally inserted through the insertion hole of the operating part provided in the rigid frame. In the blind whose slats are exposed and can be raised and lowered by operating the operating cord, the blind is attached to the rigid frame 14 so as to be movable in the vertical direction, and when the operating cord 24 is not in use, the insertion holes 44 and 45 are closed in a sealed state, Built into the double glass sash, the operation part 9 is provided with a lid member 28 that exposes the operating code 24 housed in the rigid frame 14 to the outside again from the rigid frame 14 when the door is opened. slat lifting device for blinds.