JP3228692B2 - Vertical blinds - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a vertical blind.

[0002]

2. Description of the Related Art In a conventional vertical blind, a louver is hung from each of a plurality of carriers movably arranged in a head rail, and a rotating shaft provided in the head rail is fixed to each carrier. A rotation transmission mechanism for transmitting rotation to the surroundings is provided, a plurality of carriers are moved, a louver that has been folded at the end of the head rail is pulled out, and the carrier is suspended by rotating the rotation shaft. All the louvers are rotated together, and all the louvers are turned so as to be substantially parallel to the head rail. It is in a non-shielded state, and is used by switching between a shielded state and a non-shielded state.

[0003]

However, in such a conventional vertical blind, since all the louvers perform the same operation all at once, there is a problem that the operation and the shape are monotonous. In addition, in the unshielded state, since all the louvers are substantially perpendicular to the head rail, it is possible to take in light from the outside, but the interior becomes completely visible from the outside and privacy is reduced. There is a problem that it cannot be secured.

In view of such a problem, the applicant of the present application has proposed a vertical blind having a variety of shapes in which every other louver can be in different states, and which is rich in shape change.
One of the embodiments of this prior application is a vertical blind in which a louver is hung from each of a plurality of carriers movably arranged in a head rail,
A rotation transmitting mechanism for transmitting the movement of the driving means provided in the head rail to the rotation of the louver around the vertical axis on every other carrier (referred to as a first carrier) of the plurality of carriers; In a state where the louver hung on the head is rotated so as to be substantially perpendicular to the head rail, the carrier (the second
Louvers hung on the carrier)
The louvers suspended from the carrier are configured to substantially close the gap between the louvers.

Further, as a further improvement of the above-mentioned application, the applicant of the present application has disclosed in Japanese Patent Application No. 8-298520, in which a louver suspended from the second carrier is constantly urged to a second carrier in a predetermined rotation direction. It has been proposed that a biasing means is provided so that the louvers hung on the second carrier always automatically return to a state in which the gap between the louvers hung on the first carrier is almost completely closed. I have. An object of the present invention is to further improve the above-mentioned prior application, and when a louver suspended from a first carrier is rotated by a rotation transmitting mechanism, a vertical blind capable of smoothly rotating the louver. The purpose is to provide.

[0006]

Means for Solving the Problems To achieve the above object, according to the present invention, a plurality of carriers are arranged so as to be movable in a head rail, and one of the plurality of carriers is arranged. Every other career (called the first carrier)
A rotation transmission mechanism for transmitting the movement of the driving means provided in the head rail to the rotation of the louver suspended on the first carrier around the vertical axis, wherein a louver suspended on the first carrier is provided. A louver suspended from the first carrier by the rotation transmission mechanism so that the louvers suspended from the carrier (hereinafter referred to as a second carrier) not provided with the rotation transmission mechanism have different angles from each other. In the rotatable vertical blind, both sides of at least one of the louver suspended from the first carrier and the louver suspended from the second carrier are subjected to a winding lock process. It is characterized by.

[0007] When the louver suspended from the first carrier is rotated by the rotation transmitting mechanism, either side edge of either the louver suspended from the first carrier or the louver suspended from the second carrier is rotated. If the louvers are wound and locked on both side edges when they come into contact with the other louver, the rotation operation can be performed smoothly without being caught on the surface of the other louver.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a vertical blind of the present invention.

In the drawing, reference numeral 10 denotes a head rail whose bottom has a central portion opened in the longitudinal direction. In the head rail 10, a rotating shaft 14 (driving means) is provided at the end of the head rail 10 in the longitudinal direction. It is rotatably supported by a bearing (not shown). Three grooves extending in the longitudinal direction are formed on the outer peripheral surface of the rotating shaft 14.
One end of 4 is connected to an operation wheel (not shown) provided in a control unit 10b (see FIGS. 4 and 5) at one end of the head rail 10, and is connected to the operation wheel via a joint. By operating the rotation operation rod 15 to rotate the operation wheel, the rotation shaft 1 is rotated.
4 is rotatable.

In the head rail 10, a plurality of carriers 16 (16a, 16a) are provided so as to be movable in the longitudinal direction.
b, 16c) are arranged, and the carrier at the end of the plurality of carriers is the master carrier 16a. In the master carrier 16a and the other carriers 16, through holes 18a, 19a and 18, 19 are formed on the left and right in the width direction, respectively.
An opening / closing cord 20 penetrates 19. Opening / closing cord 20
Has a knot 20a formed in the through hole 19a of the master carrier 16a and is fixed in the master carrier 16a, and the other end of the opening / closing cord 20 faces the end cover 10a of the head rail 10 in the end cover 10a.
., Through the through holes 18a, 18, 18,..., As shown in FIG. 4 to FIG. Are introduced into the rail 10, penetrate the through holes 19, 19,..., A knot 20b is formed inside the through hole 19a of the master carrier 16a, and is fixed in the master carrier 16a.

Also, a master carrier 16a, and every other carrier (first carrier) 16b has a center hole 24 formed with a rib for engaging with the groove of the rotary shaft 14.
a rotation transmission mechanism 28 including a worm 24 having a.a. and a worm wheel 26 meshing with the worm 24. A hook 30 formed integrally with the worm wheel 26 is connected to a lower portion of the worm wheel 26, and a carrier is provided. It protrudes downward from 16b, 16a. Then, the master carrier 16a and the carrier 16b include:
An opaque louver 40 is suspended via the hook 30.

The carrier (second carrier) 16c in which the rotation transmitting mechanism 28 is not installed is provided with the rotating shaft 14
Is formed, and a hook 34 protrudes below the carrier 16c so as to be rotatable around a vertical axis with respect to the carrier 16c. A translucent louver 42 is suspended from the carrier 16c via a hook 34. A coil spring 35 is wound around an upper end shaft portion 34a formed to extend from an upper portion of the hook 34. The spring force of the coil spring 35 always causes the hook 34 and the hook 34 to rotate in a predetermined rotation direction around the vertical axis. The louver 42 is biased and the louver 42
Is substantially parallel to the head rail 10, the hook 34 is prevented from rotating further by a stopper (not shown) formed in the carrier 16c. The louver 42 is made of a voile cloth, which is a thin cloth, and the louver 40 is made of a thicker cloth than the louver 42. Both edges 4 of louver 42
FIG. 2 is a perspective view and an enlarged view of a main part of 2a, and FIG. 3 is a sectional view thereof. As shown in FIG.
The so-called winding lock process is performed on the 2a, which is folded twice and the folded portion is overlocked, and a thread 50 is wrapped around the side edges 42a regularly. Also, the louver 40 is similarly wound-locked on both side edges 40a.

Each carrier 16 has a spacer link 44 as a spacing member.
4 can be separated from each other with a predetermined distance d as the maximum distance by engaging with the claw portion 46 of the adjacent carrier 16, and can be approached from each other by releasing this lock. 16a are connected at the head.

Next, the operation of the vertical blind will be described. First, when the opening / closing cord 20 led out from the control unit 10b is operated, the master carrier 16a to which the knot 20a of the opening / closing cord 20 is fixed moves in the head rail 10 in the longitudinal direction. The remaining connected carriers 16b,
By the movement of the carrier 16c, the carrier 16 can be in the extended state in which the carriers 16 are separated from each other at a predetermined distance d, or in a state in which the carriers 16 are folded with the distance between them reduced.

FIGS. 4 and 6 (a) show the extended state in which the carriers 16 are separated from each other by a predetermined distance d, and the louvers 40 suspended from the carriers 16b are perpendicular to the head rail 10. FIG. And the louvers 42 suspended from the carrier 16c are urged in the counterclockwise direction when viewed from a plane around the vertical axis by the spring force of the coil spring 35, so that the louvers 40 between the louvers 40 on both sides of each louver 42. Are arranged at an angle with respect to the head rail 10 so as to substantially close the gap. Since the louver 42 is a translucent louver, light can be taken in from the other side of the vertical blind through the louver 42 to view the scenery, and the louver 42 does not become completely visible from the other side.
Some privacy can be secured.

In this state, when the rotating shaft 14 is driven to rotate by operating the rotating operation rod 15, a rotation transmitting mechanism 28 is provided on the master carrier 16a and the first carrier 16b to be engaged with the groove of the rotating shaft 14. Therefore, this rotation transmission mechanism 2
8, the rotation of the rotation shaft 14 is transmitted, and the hook 30 and the louver 40 are rotated around the vertical axis, and rotate so as to be parallel to the head rail 10, while being suspended by the second carrier 16c. The louver 42 is a coil spring 3
By the action of 5, the head rail 10 rotates until it becomes parallel. Thus, as shown in FIG. 5 and FIG. 6B, the louvers 40 partially overlap each other, and the louvers 40 viewed from the direction perpendicular to the head rail 10.
There is no gap between them, and the opaque louver 40 can completely shield the other side of the vertical blind. In this operation, the louver 40 rotates so as to trace both side edges 42a of the louver 42. Since the both side edges 42a of the louver 42 are wound-locked, the louver 40 42 side edges 4
The louver 40 can rotate smoothly without the 2a being caught.

In a conventional vertical blind, when a louver made of cloth is used, it is common to cut a louver by cutting a large cloth into a desired shape by ultrasonic waves. However, since it is difficult to match the texture with the cutting line, the cutting line that looks straight and smooth at first glance is finely uneven, and the cut end of the cut yarn once melts. The cutting line is not smooth because it is hardened after the louver 40, and the side edge 42a of the louver 42 is caught on the surface of the louver 40 and the louver 40
However, in the present embodiment, the winding lock processing is applied to both side edges 42a of the louver 42, and the yarn is regularly wrapped around the both side edges 42a of the louver 42. 40 can rotate smoothly without being caught on both side edges 42 a of the louver 42. Furthermore, the louvers 40, 4
Since the two side edges 40a, 42a are wound and locked, it is possible to prevent the yarns of the two side edges 40a, 42a from fraying.

To return from the state of FIG. 5 (FIG. 6B) to the state of FIG. 4 (FIG.
Is operated to rotate the louver 40 until it is perpendicular to the head rail 10, the width of the louver 42 is larger than the interval (2d) between the louvers 40, so that the coil spring 3
Contrary to the spring force of No. 5, as shown in FIG. 4 (FIG. 6 (a)), the louver 40 holds the head rail 10 at a slight angle. At this time, louver 4
The 0 and the louver 42 can rotate smoothly without mutual side edges 40a and 42a being hooked on the other louver. Also, in the state of FIG. 4 (FIG. 6A), even if the rotation angle of the louver 42 about the vertical axis changes artificially or due to wind or the like, the louver 42 is always adjacent to the louver 42 by the spring 35. It can rotate smoothly so as to smoothly return to a state in which the gap between the matching louvers 40 is closed.

In this embodiment, both louvers 40,
The example in which the winding lock process is performed on the louver 42 has been described. However, in the case where the louver 40 is made of a material that does not cause the side edges 40a to be frayed, it is possible to perform the winding lock process only on the louver 42. Conversely, louver 40
When the surface of the louver 42 is caught on both side edges 40a of the louver 40, it is also possible to apply a winding lock process only to the louver 40. In addition, when performing the overlock stitching in the winding lock process, a process of performing another overlock stitch together with the side edge of the louver may be performed with another string or tape. Thereby, the louvers 40, 42 can be prevented from extending in the vertical direction. This treatment is particularly effective when the yarns constituting the louvers 40 and 42 are not strong twist yarns, because they may extend in the vertical direction.

In the above embodiment, the louver 42 is used.
Is a translucent louver, and the case where the louver 40 is an opaque louver has been described. However, the present invention is not limited to this. The louver 40 can also be a translucent louver, and the louver 40 overlaps with the louver 42. In addition, since the translucent louvers overlap in multiple layers, a light shielding effect can be provided. Furthermore, all louvers 4
Both 0 and 42 need not be translucent louvers. For example, the louver 40 and the louver 42 have different patterns, respectively, and the louver 40 and the louver 42 rotate differently to enjoy a change in the pattern. It can also be. In the above-described embodiment, an example in which the rotating shaft 14 is used to rotate the louver 40 has been described. Nor. In the above-described embodiment, an example using the opening / closing cord 20 has been described. However, an opening / closing shaft screwed to the master carrier 16a to move the master carrier 16a in the longitudinal direction of the head rail 10 can of course be used. is there. Further, in the above embodiment, the example in which the coil spring 35 for biasing the louver 42 is used has been described.
The coil spring 35 can be omitted.

[0021]

As described above, according to the present invention,
Since both sides of at least one of the louver hung on the first carrier and the louver hung on the second carrier are wound-locked, the rotation transmission mechanism applies the louver to the first carrier. When the suspended louver rotates, even if either one side edge of the louver suspended by the first carrier and the louver suspended by the second carrier comes into contact with the other louver, the other louver is not rotated. The rotation operation can be performed smoothly without being caught on the surface of the louver. In addition, fraying of the yarn on both side edges of the louver can be prevented, and the appearance of the side edge of the louver is improved by the winding lock process, so that the design value of the vertical blind can be enhanced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a vertical blind according to a first embodiment of the present invention.

FIGS. 2A and 2B are a perspective view and an enlarged view of a main portion of both side edges of a louver suspended from a second carrier.

FIG. 3 is a sectional view of both side edges of the louver taken along line 3-3 in FIG. 2;

FIG. 4 is an overall perspective view showing a state in which the vertical blind of FIG. 1 is deployed and a louver suspended from a first carrier is perpendicular to a head rail.

FIG. 5 is an overall perspective view showing a state in which the vertical blind of FIG. 1 is deployed and all louvers are substantially parallel to a head rail.

FIGS. 6A and 6B are plan explanatory views of the louver of FIGS. 4 and 5. FIG.

[Explanation of symbols]

 Reference Signs List 10 head rail 14 rotating shaft (driving means) 16b first carrier 16c second carrier 28 rotation transmitting mechanism 40 louver 40a side edge 42 louver 42a side edge

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E06B 9/36

Claims (1)

(57) [Claims] A plurality of carriers (16) are arranged so as to be movable in a head rail (10), and every other carrier (referred to as a first carrier (16b)) of the plurality of carriers is provided in a head rail. A rotation transmission mechanism (28) for transmitting the movement of the provided driving means (14) to the rotation of the louver (40) suspended around the first carrier around the vertical axis, and provided with a rotation transmission mechanism (28) suspended by the first carrier; The louver and the louver (42) suspended on a carrier (referred to as a second carrier (16c)) not provided with the rotation transmission mechanism are rotated by the rotation transmission mechanism so that the louvers (42) are at different angles from each other. A vertical blind in which a louver hung on one carrier can rotate, a louver hung on a first carrier and a louver hung on a second carrier Wherein both side edges (40a, 42a) of at least one of the louvers are subjected to a winding lock process.