JPS6342068B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a slat angle adjustment mechanism in a headbox elevating type blind.

(Prior Art and Problems to be Solved by the Invention) The slat angle adjustment mechanism in the headbox elevating type blind, which opens and closes the blind by vertically moving the headbox of the blind, has various structures. have been proposed, but no one has yet been developed that has a simple configuration and can reliably adjust the slat angle.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an angle adjustment mechanism that is simple in construction and can reliably adjust the slat angle.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a head box for a blind arranged on a glass shoji that can be opened and closed by moving the head box up and down. In the blind, a conversion device rotatably supports a drive shaft that applies rotational force to the ladder cord for adjusting the angle of the slat in the head box, and converts the reciprocating driving force into rotational force and transmits it to the drive shaft. A wire that is connected to the drive shaft and transmits reciprocating driving force is connected to the conversion device, and the end of the wire is guided to the vertical stile of the glass shoji so that it can be driven from the outside, making the wire inside the vertical stile flexible. A method was adopted in which the outer cable was coated with a tensioned outer cable.

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

That is, when a wire led to the vertical frame of a glass shoji is driven back and forth from the outside, the driving force is converted into rotational force in a conversion device to which the wire is connected, and a drive shaft rotatably supported by a head box is converted into rotational force. is rotated, and this rotational force tilts the slat via the rudder cord.

In addition, since the headbox is movable in the vertical direction, the wires may become slack within the stile when the headbox is moved downwards, but this wire is covered with a flexible outer cable. Since the wire is in a tensioned state, the reciprocating motion of the wire is accurately transmitted to the tilting motion of the slat without waste.

(Example) Hereinafter, an example in which the present invention is embodied in a double glass shoji with a built-in blind will be described with reference to the drawings. That double glass shoji 2,
3 are movable on rails 5 provided on the window frame 4.

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.

As shown in FIG.
A head box 12 is supported by a runner 11 that is movable up and down inside the head box 1.
It is designed to open and close by moving 2 up and down. The detailed structure of this blind 9 will be explained according to FIGS. 3 to 11.
In the figure, reference numeral 13 denotes a drive belt for moving the runner 11 up and down, and has an endless configuration with one end tied to the upper end of the runner 11 and the other end tied to the lower end of the runner 11. Frame 10
It is hung on a pulley 14 rotatably supported at the upper end, and a weight 16 is suspended from the lower endless edge via a movable pulley 15.

Further, the drive belt 13 passes through a handle 17 of the double glass shoji 2 in order to move the runner 11 up and down by external operation. The handle 17 will be explained according to FIGS. 4 and 5. Reference numeral 18 is a concave portion of the handle 17, and the upper end thereof has a saw blade-shaped uneven portion 19.
is provided. The upper end of the recess 18 is opened into the stile 10, and a guide pulley 20 is rotatably supported in the opening. Reference numeral 21 denotes a stopper which is rotatably supported in the front and rear direction with respect to the handle 17 at a position facing the uneven portion 19 about a shaft 22 as a fulcrum, and rotatably supports the pressure contact pulley 23 facing the uneven portion 19. ing.

24 is a leaf spring whose base end is fixed to the stopper 21, and whose tip end is connected to the guide pulley 20.
The pulley 20 is always used as a fulcrum to urge the stopper 21 in the direction of the uneven portion 19. The drive belt 13 inserted between the pressure pulley 23 and the uneven portion 19 is pressed against the uneven portion 19 by the pulley 23, and the drive belt 13 is immovably fixed.

The lower end of the recess 18 is opened into the stile 10 in the same way as the upper end, and two guide pulleys 25, 2 are installed in the opening.
6 is rotatably supported. The drive belt 13 is exposed within the recess 18 of the handle 17 via the space between the pressure pulley 23 and the uneven portion 19.
returns to stile 1 via guide pulleys 25 and 26.
Guided into 0.

In the handle 17 configured in this way, the drive belt 13 is normally tensioned obliquely in the front and back direction within the recess 18 by the action of the stopper 21 and the weight 16, as shown in FIG. It's getting easier. When the drive belt 13 is pulled forward, the stopper 21 is rotated slightly toward the front, and the drive belt 13 can be pulled out from above along the guide pulley 20 and the pressure pulley 23. In this state, the drive belt 13 can be pulled out. For example, the runners 11 in the stiles 10 can be moved upwards. At this time, the drawn-out drive belt 13 is automatically drawn into the vertical stile 10 via the guide pulleys 25 and 26 by the action of the weight 16.

Furthermore, when moving the runner 11 downward, by placing your finger on the stopper 21 and rotating it toward you against the biasing force of the leaf spring 24, the drive belt 13 becomes movable and the runner 11 automatically moves due to the weight of the blind 9. moved downwards.

Next, the structure of the runner 11 will be explained according to FIGS. 6 to 10. In FIG. 6, 27 is a groove-shaped runner body, and a pair of upper rollers 28 are rotatably mounted on both sides of the upper part. Supported.
29 is a shaft inserted and fixed to the lower end of the runner main body 27, 30 is a rotating leg rotatably supported by the shaft 29, and a pair of lower rollers 31 are rotatably mounted on both sides of the lower end. Supported. Also,
A slit 32 is provided in the rotating leg 30 between the lower rollers 31.
A support frame 33 connecting both sides of the slit 32 is provided at the lower end of the support frame 33 to support the drive belt 1.
The ends of 3 can be tied together.

34 is a recess with a semicircular cross section provided at the upper end of the rotating leg 30, and as shown in FIG. The long hole 3 is located on the front of the runner body 27.
A long hole 36 communicating with 5 is transparently provided. Numeral 37 is a nut member formed in a semi-cylindrical shape that can be fitted into the recess 34, and a screw hole 38 is provided in the center. Then, by inserting the bolt 39 into the elongated holes 35 and 36 from the front of the runner body 27, and screwing the bolt 39 into the threaded hole 38 of the nut member 37 fitted in the recess 34, In FIG. 8, the rotation of the rotation leg 30 in the direction of arrow A with respect to the runner body 27 is restricted, and the bolt 39
By adjusting the amount of screwing in, the position of the lower roller 31 relative to the runner body 27 can be arbitrarily selected as shown in the figure.

The upper end portion of the runner body 27 is formed into a square tube shape, as shown in FIG. 40 is a connecting member provided to be able to fit inside the square cylinder,
A support frame 41 is provided on its upper surface to which the drive belt 13 can be tied, and a screw hole 42 is provided on the side surface corresponding to the rear portion of the runner body 27. Then, as shown in FIG. 7, the connecting member 40 is fitted into the square tube, and the bolt 43 is screwed into the screw hole 42a from the through hole 42b provided on the rear side of the square tube. The connecting member 40 that has been tied together can be fixed to the runner body 27.

Reference numeral 44 denotes a head box support frame that projects forward from the upper end of the runner main body 27, and a narrow portion 45 is provided at the base end of the head box support frame. and,
As shown in FIG. 9, the runner 11
moves up and down within the stile 10, and the headbox support frame 44 protrudes outside the stile 10 from the opening groove 10a. Reference numeral 45a denotes a screw hole provided on the upper surface near the base end of the head box support frame 44. As shown in FIG. By screwing in the head box 12, the runner 11 can support the head box 12.

When in use, the runner 11 configured in this manner is suspended at its upper end from the drive belt 13 within the vertical stile 10, and is attached to the head box support frame 4.
Since the weight of the blind 9 acts on the blind 9, the upper roller 28 comes into contact with the inner wall on both sides of the opening groove 10a, and the lower roller 31 comes into contact with the inner wall on the opposite side, as shown in FIGS. 9 and 10. When, for example, the bolt 39 is further screwed into the nut member 37 from the state shown in FIG. 10, the lower roller 31 is positioned in the front-rear direction by the inner wall of the vertical stile 10, so that the runner body 2 is rotated about the upper roller 28, and at the same time the head box support frame 44 is rotated upward about the upper roller 28. Therefore, by adjusting the bolts 39, the headbox 12 relative to the stile 10 can be adjusted.
The angle can be adjusted.

Next, the angle adjustment device for the blind 9 will be explained. In FIG. 11, 46 is a slat of the blind 9, and 47 is a ladder cord that supports each slat 46. 48 is a support shaft that supports the upper end of each ladder cord 47, and
They are each rotatably supported by a support member 49 fixed in the interior of the support member 2 . Reference numeral 50 denotes a drive shaft fitted into the support shaft 48, which cannot rotate relative to the support shaft 48, and can be moved relative to the support shaft 48 in the axial direction by a set screw (not shown) or the like screwed into the outer periphery of the support shaft 48. It is impossible.

Reference numeral 51 indicates three protrusions formed in a spiral shape on the outer peripheral surface of the central portion of the drive shaft 50, and reference numeral 52 indicates a protrusion 51 that is slidably fitted in the drive shaft 50 in the axial direction while meshing with the protrusion 51 at the protrusion 51 portion. The combined transmitting body is formed into a substantially rectangular plate shape so as to be unrotatable with respect to the head box 12, and is adapted to rotate the drive shaft 50 when moved in the axial direction.

53 is a wire for moving the transmission body 52 left and right along the drive shaft 50, and is connected to the head box 1.
Its endless edge is supported by a pulley 54 rotatably supported at the other end of the runner 11 , and the pulley 54 and the runner 11
A transmission body 52 is connected in series to one of two wires 53 stretched in parallel between the two wires 53 . As shown in FIG. 7, the two wires 53 guided to the runner 11 pass through the base end portions of the head box support frame 44 and are guided to the rear of the runner 11. As shown in FIG. 3, the wire 53 led out to the rear of the runner 11 is connected to the vertical frame 10 while being covered with a flexible coiled outer cable 55.
The inner ends are guided to the handle 17 position, and are wound in mutually opposite directions around a winding shaft 56 rotatably supported within the vertical stile 10 at the handle 17 position. An operating dial 57 is fitted onto the winding shaft 56, and a portion of the operating dial 57 is exposed in the recess 18 of the handle 17, as shown in FIG. 4, so that it can be operated from the outside.

The bottom rail of this blind 9 is fixed inside the lower stile of the inner shoji 7, and a ladder cord 47 is attached to a support shaft rotatably supported by the bottom rail.
The bottom end of is connected. Further, in FIG. 11, reference numeral 48 denotes a support string that passes through the end of each slat 46, and its upper and lower ends are tied to the head box 12 and the bottom rail.
I'm trying not to move it left or right.

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

Now, by operating the double sliding window 1 by placing a finger on the handle 17, the double glass shoji 2 and 3 are moved on the rails 5. When the drive belt 13 exposed in the recess 18 of the handle 17 is pulled toward you, the runner 1
1 is moved upward within the stile 10, the headbox 12 supported by the headbox support frame 44 of the runner 11 is moved upward, and the blind 9 is closed. Further, when the stopper 21 is rotated toward the front, the headbox 12 is moved downward by the weight of the headbox 12 and the slat 46 suspended from the headbox 12, and the blind 9 is opened.

In the slat angle adjusting device of the blind 9, when the operation dial 57 is rotated, the winding shaft 56 is rotated, and one of the two wires 53 is wound up while the other one is unwinded. Then, as the wire 53 moves inside the head box 12, the transmission body 5
2 is moved in either the left or right direction, and the transmission body 52
The drive shaft 50 is rotated by this movement. Drive shaft 5
The support shaft 48 is rotated by the rotation of 0, and each slat 46 is tilted via the ladder cord 47.

Further, the wire 53 between the runner 11 and the winding shaft 56 is ensured to have a sufficient length so that there is no problem even when the head box 12 is pulled up to the top, and when the head box 12 is moved downward. Although it becomes sagging inside the vertical stile 10,
Since it is covered with the outer cable 55, it is always kept under tension, and the reciprocating motion of the wire 53 caused by the operation of the operation dial 57 is transmitted to the transmission body 52 without waste.

Therefore, this slat angle adjusting device can easily and reliably adjust the angle of the slat 46 by operating the operation dial 57 regardless of the position of the headbox 12 in a headbox elevating type blind to adjust the amount of light entering the room. At the same time, the wire 5 can be connected inside the head box 12.
A conversion device that converts the horizontal movement of 3 into rotational force and transmits it to the drive shaft 50 is also a protrusion 51 provided on the drive shaft 50.
This can be realized with a very simple configuration by the transmission body 52 which is slidably fitted in the axial direction with respect to the drive shaft 50 at the protrusion 51 portion thereof.

Further, the present invention can also be implemented in the following manner.

(a) Exposing the end of the wire 53 to the outside of the vertical stile 10,
Driving the wire 53 back and forth by manipulating its end. Further, the backward movement of the wire 53 should be performed manually using the urging force of the spring, and only the forward movement should be performed manually.

(b) By wrapping the endless edge of the wire 53 around the drive shaft 50 via a pulley, a conversion device can be used that converts the reciprocating motion of the wire 53 into rotational force of the drive shaft 50.

Effects of the Invention As detailed above, the headbox elevating type blind of the present invention exhibits the excellent effect of being able to reliably adjust the angle of the slats with a simple structure.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a double glass sliding window embodying this invention, Fig. 2 is a front view thereof, Fig. 3 is a perspective view showing the runner drive mechanism, and Fig. 4 is a view of the handle portion. Front view, Figure 5 is a vertical sectional view of the handle, Figure 6 is a perspective view of the runner, Figure 7 is a vertical sectional view of the runner, and Figure 8 is a partially cutaway front view of the runner showing the action of the rotating legs. 9 is a plan view showing the runner inside the stile, FIG. 10 is a front view showing the runner inside the stile, and FIG. 11 is a front view showing the slat angle adjustment mechanism inside the headbox. Double glass shoji 2, 3, outer shoji 6, inner shoji 7, blind 9, vertical stile 10, runner 11, headbox 12, slat 46, ladder cord 47, drive shaft 50, wire 53, pulley 54, winding shaft 56 .

Claims (1)

[Claims] 1. Blinds 9 arranged on glass shoji 2, 3
In the headbox elevating type blind in which the blind 9 can be opened and closed by vertically moving the headbox 12, there is a drive shaft 50 that applies a rotational force to the ladder cord 47 for adjusting the angle of the slat 46 in the headbox 12. A converting device is connected to the drive shaft 50, and a wire 53 for transmitting the reciprocating driving force is connected to the converting device. Connect the end of the wire 53 to the vertical frame 1 of the glass shoji 2 and 3.
2. A slat angle adjustment mechanism for a headbox elevating type blind, characterized in that the wire 53 in the vertical stile 10 is covered with a flexible outer cable 55 and is tensioned. 2. The wire 53 is wound around a winding shaft 56 that is rotatably supported within the vertical stile 10, and the winding shaft 56 is attached to the handle 1.
The slat angle adjustment mechanism in a headbox elevating type blind according to claim 1, wherein the slat angle adjustment mechanism can be rotated by an operation dial 57 partially exposed in the handle recess 18 of the headbox.