JPS6334957B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a blind opening/closing mechanism for a double glass shoji screen with a built-in blind.

(Prior Art) A blind opening/closing mechanism in a double glass shoji in which a blind is built in between an outer shoji and an inner shoji has conventionally been configured as shown below.

That is, a winding device for lifting cords for raising and lowering the blind is provided in the head box in which the blind is suspended, and a drive means for driving this winding device is provided in the vertical stile of the inner shoji screen.

(Problem to be Solved by the Invention) However, with the above configuration, if a tall blind is used, the winding device needs to be increased in size to accommodate the length of the elevating cord. growing. Then, the vertical stile needs to be made that much larger, and as a result, the entire double-glazed shoji with built-in blinds becomes larger.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a blind opening/closing drive device that can make the entire double-glazed shoji screen with a built-in blind compact.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a double glass shoji in which a blind is hung between an outer shoji and an inner shoji, and a vertical stile of the inner shoji. A main shaft is rotatably supported at the upper end, and the main shaft is rotatably operated from the outside of the double glass shoji using an operating string. We adopted a method of connecting lifting cords.

(Function) With the above means, the present invention functions as follows.

In other words, when the operating string is operated from the outside of the double glass shoji to rotate the main shaft supported at the upper end of the vertical stile, the belt member stretched around the main shaft is moved up and down, and the belt member connected to the belt member is moved up and down. The lifting cord of the blind is pulled upward or downward, so that the blind is opened/closed.

(Embodiment) Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. 1 is a sliding window composed of double glass shoji 2 and 3; , 3 on a rail 5 provided on the window frame 4, it can be opened and closed.

Since the double glass shoji 2 and 3 have almost the same structure, the structure of the same shoji 2 will be explained below. 6 is the outer shoji of the double glass shoji 2, and 7 is the lower stile of the outer shoji 6. This is an inner shoji that is movable on rails 8, and includes both shojis 6,
A blind 9 is provided between the windows 7 and 7.

The headbox 11 of this blind 9 is fixed to the upper stile 10 of the inner shoji 7, and a large number of slats 12 and bottom rails 13 are suspended from the headbox 11. It can be opened and closed by operating the operating strings 15 exposed on the handles 14 of the double glass shoji 2 and 3 shown in FIG. The detailed structure of this blind 9 is explained in the third section.
Explaining according to FIGS. 10 to 10, 16 is the handle 1
A driving device for a blind 9 fixed to the upper end of a vertical stile 17 provided with a stile 16.
The upper endless edge of the operating string 15 is hung from a pulley 18 that is rotatably supported by a pulley 18, and a weight 20 is suspended from the lower endless edge of the operating string 15 via a movable pulley 19.

Further, the operating string 15 passes through the handle 14 in order to open and close the blind 9 by external operation.
The handle 14 will be explained with reference to FIGS. 4 to 6. Reference numeral 21 is a recessed portion of the handle 14, and a saw blade-shaped uneven portion 22 is provided at the upper end thereof.
The upper end of the handhold recess 20 is opened into the vertical stile 17, and a pair of guide pulleys 23 and 24 are rotatably supported in the opening. 25 is the uneven portion 2
It is a locking shaft supported by oblique long holes 26 provided on both sides of the handhold recess 21 at a position opposite to the handle recess 21, and is movable back and forth along the long holes 26. The locking shaft 25 is knurled, and as shown in FIG.
2, the operating string 15 is fixed immovably.

The lower end of the handhold recess 21 is opened into the vertical stile 17 like the upper end, and a pair of guide pulleys 27 and 28 are rotatably supported in the opening. The operating string 15 exposed within the handle recess 21 via the locking shaft 25 and the uneven portion 22 is guided into the vertical stile 17 again via guide pulleys 27 and 28.

When the operating string 15 is pulled toward the user in the handle 14 configured in this manner, the locking shaft 25 is moved diagonally upward toward the user along the elongated hole 26, as shown in FIG. 23, 24 and the locking shaft 25 from above, and it is also possible to draw the operating string 15 upward from below. Further, the operating string 15 pulled out from above is automatically drawn into the vertical stile 17 via guide pulleys 27 and 28 by the action of the weight 20.

Next, the structure of the drive device 16 will be explained according to FIGS. 7 and 8. 29 is a case of the drive device 16, and 30 is a main shaft rotatably supported on both sides of the case 29. , said pulley 18
are fitted and fixed, and a drive gear 31 is integrally molded. 32 and 33 are guide shafts supported by both end surfaces of the case 29 below the pulley 18, and as shown in FIG.
Operation string 15 hung on pulley 18 between 33 and 33
is becoming increasingly popular.

34 is a driven shaft rotatably supported by the side surface of the case 29 and a support frame 35 protruding into the case 29 at a diagonally rear position above the main shaft 30;
A driven gear 36 that meshes with the drive gear 31 is integrally molded. The driven shaft 34 is extended outside the case 29 and is provided with a sprocket 37, and its tip end is supported by a support frame 38 extending from the upper surface of the case 29. 39 is sprocket 3
As shown in FIG. 3, the lower endless edge of the chain is hung on a sprocket 41 supported by a support fitting 40. As shown in FIG. Note that this support metal fitting 40 is attached to the inner shoji 7.
It is fixed to the lower stile.

The drive device 16 configured as described above has the ninth
As shown in the figure, at the upper end of the vertical stile 17, the main shaft 3
0 is fixed so as to be located at the center in the longitudinal direction of the vertical stile 17, and the driven shaft 34 is located at the rear of the vertical stile 17,
The sprocket 37 is exposed to the outside of the vertical stile 17 behind the glass 7a of the inner shoji 7. Therefore,
Chain 39 connects to sprocket 37 outside stile 17,
It is stretched endlessly between 41 spaces.

Next, the structure of the blind 9 will be explained.
In the figure, reference numerals 42 and 43 are two lifting strings for lifting and lowering the bottom rail 13 of the blind 9, one end of which is tied to the chain 39. As shown in the same figure and FIG. 10, one lifting cord 42 is hung on a pulley 44 supported inside the left end of the head box 11, and is inserted into a long hole 45 on the left end of each slat 12, and is attached to the bottom rail at the lower end. 13 is hanging. The other lifting string 43 passes through the head box 11 from a pulley 44 and is hung from a pulley 46 supported inside the right end of the head box, and is inserted into a long hole 47 at the right end of each slat 12, and is attached to the bottom rail 1 at the lower end.
3 is hanging. In addition, the lifting string 42, 4
3 has its length adjusted so that the bottom rail 13 is suspended horizontally.

Reference numeral 48 denotes a drive shaft for adjusting the angle of the slat 12, which has a hexagonal cross section, and one end of which is fitted into a hexagonal hole 49 provided at the center of the driven shaft 34 of the drive device 16. A support shaft 50 is fitted to the drive shaft 48 in the head box 11, is rotatably supported by a support member 51 fixed to the head box 11, and suspends a ladder cord 52 that supports each slat 12. . When the drive shaft 48 is rotated with the rotation of the driven shaft 34, the support shaft 50 is rotated and each slat 12 is tilted by the ladder cord 52. After each slat 12 is tilted to a substantially vertical state, the slats 12 are further tilted. When the drive shafts 48 are rotated in the same direction, idle rotation occurs between the drive shafts 48 and the support shafts 50, and each slat 12 is prevented from being tilted any further.

Next, the operation of the sliding window 1 configured as described above will be explained.

Now, the sliding window 1 can be opened and closed by hooking a finger on the handle 14 and moving it on the double glass shoji 2 and 3 rails 5. When the operating string 15 exposed in the handle recess 21 of the handle 14 is pulled forward, the locking shaft 25 is moved forward, and the operating string 15 is moved forward.
is in a state where it can be moved upwards or downwards, and when the operation string 15 is pulled out from above in this state, the eighth
In the figure, the pulley 18 is rotated in the direction of arrow A, the driving gear 31 is rotated in the same direction, and the driven shaft 34 is rotated through the driven gear 36 that meshes with the driving gear 31.
is rotated in the direction of arrow B. As the driven shaft 34 rotates, the sprocket 37 rotates and the chain 39 moves in the direction of arrow C in FIG. 3, pulling the lifting strings 42, 43 downward. As a result, the bottom rail 13 is pulled upward and the blind 9 is opened. At this time, as the driven shaft 34 rotates, the drive shaft 48 is rotated and the slat 12 is tilted, but after the slat 12 is tilted to a substantially vertical position, the slat is tilted due to idle rotation between the drive shaft 48 and the support shaft 50. 12 is no longer tilted.

Furthermore, if the operating string 15 inside the handhold recess 21 is held in a pulled state, the driven shaft 34 and main shaft 30 are rotated in the opposite direction due to the weight of the bottom rail 13, and the operation string 15 inside the handhold recess 21 is rotated in the opposite direction. The operating string 15 is moved upward, the bottom rail 13 is lowered, and the blind 9 is closed.

In the double glass shoji 2, 3 as described above, a blind 9 is arranged between the inner shoji 7 and the outer shoji 6, and the head box 11 of the blind 9 is as follows.
As shown in FIG. 1, the inner shoji 7 is attached to the rear part of the upper stile 10. Therefore, the output shaft of the drive device 16 attached to the stile 17 is connected to the head box 11.
It is necessary to position it at the rear of the vertical stile 17 in accordance with the position of the drive shaft 48 inside.

Therefore, in the embodiment described above, a driven shaft 34 is provided at the center of the drive device 16 behind the main shaft 30 which is rotated by the operating string 15 via the pulley 18, and the rotation of the main shaft 30 is controlled by the gears 31 and 36. The rotation of the driven shaft 34 is transmitted to the drive shaft 48 and a chain 39 for opening and closing the blind 9. Therefore, by attaching the large pulley 18 to the main shaft 30, the main shaft 30 can be rotated with a small torque. That is, when the main shaft 30 is omitted and the driven shaft 34 is rotated by an operating string via a pulley, the pulley has a small diameter because the driven shaft 34 is located at the rear of the vertical stile 17.
Not only does a large operating torque be required, but in some cases the operation may become impossible, but in this embodiment, the blind 9 can be opened/closed and the slat 12 can be adjusted in angle with a small torque.

To open and close the blind 9, one end of the lifting strings 42, 43 is tied to the chain 39, and the driven shaft 34 is connected to the chain 39.
The structure is such that the bottom rail 13 is raised and lowered via pulleys 44 and 46 in the head box 11 by a chain 39 that moves up and down with the rotation of the head box 11.
does not require a structure for winding. Therefore, since the head box 11 can be downsized, the blind opening/closing mechanism as described above is optimal for the blind 9 disposed within the double glass shoji 2, 3.

Effects of the Invention As detailed above, according to the present invention, the blinds can be opened and closed without installing a lifting cord winding device in the headbox. Moreover, there is no need to make the vertical stile large, and as a result, the entire double glass shoji with built-in blind can be made compact, which is an excellent effect.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a double glass sliding window embodying the invention, Fig. 2 is a front view thereof, Fig. 3 is a perspective view showing the opening/closing mechanism of the blind, and Fig. 4
The figure is a front view of the handle part, Figures 5 and 6 are longitudinal sectional views of the handle part, Figure 7 is a longitudinal sectional view of the blind opening/closing drive device, Figure 8 is a side view thereof, and Figure 9 is a longitudinal sectional view of the handle part. FIG. 10 is a plan view showing the driving device attached to the stile, and a front view showing the angle adjusting device in the headbox. Double glass shoji…2,3, outer shoji…6,
Inner shoji…7, blinds…9, upper stile…1
0, Operation string...15, Drive device...16, Stiles...17, Pulley...18, Case...29,
Main shaft...30, driving gear...31, driven shaft...3
4. Driven gear...36, Chain...39, Lifting string...42, 43, Drive shaft...48.

Claims (1)

[Claims] 1. In a double glass shoji in which a blind 9 is suspended between an outer shoji 6 and an inner shoji 7, a main shaft 30 is rotatably supported at the upper end of a vertical stile 17 of the inner shoji 7, and The main shaft 30 is rotatably operated from the outside of the double glass shoji 2, 3 by an operating string 15, and the lifting string 42 of the blind 9 is attached to a belt member 39 stretched so as to be movable up and down as the main shaft 30 rotates. A blind opening/closing drive device for a double glass shoji with a built-in blind, characterized in that 43 are connected to each other. 2. The belt member is arranged in an endless manner between the sprocket 37 of the driven shaft 34, which is provided behind the main shaft 30 so as to be rotatable as the main shaft 30 rotates, and the sprocket 41 supported on the lower stile of the inner shoji 7. The blind opening/closing drive device in a double glass shoji with a built-in blind according to claim 1, which is a stretched chain 39. 3. The blind opening/closing drive device for a double glass shoji with a built-in blind according to claim 2, wherein the driven shaft 34 is fitted with a drive shaft 48 for adjusting the angle of the slats 12 of the blind 9.