JPH0137085Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an opening/closing device for opening and closing each slat of a blind shutter equipped with a louvered slat curtain.

In the blind type shutter previously proposed by the applicant of the present application in the invention of Japanese Patent Application No. 58-65193,
It has a structure that allows the slats to be opened and closed individually or all at once while the curtain is closed.
By adding a slat opening/closing device to the above-mentioned proposed structure, a highly functional shutter can be obtained that allows ventilation and sunlight to be brought in at any time through the curtain.

The present invention was made in order to obtain an opening/closing device for a blind shutter suitable for the above-mentioned proposed structure.In other words, the purpose of the present invention is to smoothly drive the slats to open and close, and also to enable the slats to be raised and lowered freely. An object of the present invention is to provide an opening/closing device for a blind type shutter which can be opened and closed at any height.

As a means for achieving this purpose, the blind shutter opening/closing device of the present invention has a crank 20 mounted at the tip of the ear shaft 8 on at least one side of each slat 7.
A rotating portion 20a is formed at the end of the crank 20 and protrudes in a direction parallel to the ear shaft 8.
is inserted into an upright movable rail 18 that is movable in the depth direction of the shutter along the inner surface of the curtain guide rail 2, and is guided in a vertically movable manner, and the movable rail 18 is rotated by operation. By screwing into the threaded shaft 15 in the depth direction, it is possible to freely move between a sliding position corresponding to the direction of crank rotation when the slat is vertical and a sliding position corresponding to the direction of crank rotation when the slat is horizontal. It is characterized by

Hereinafter, the present invention will be explained based on an illustrated embodiment.

As shown in FIGS. 1 and 2, the blind type shutter equipped with the opening/closing device of the embodiment has an upper storage box 1 and curtain guide rails 2 and 3 on each side of the left and right sides as skeletons, and has the following features. As shown in FIGS. 1 to 6, first, inside the box 1, a winding wheel 4 is supported by bearings on both the left and right sides. ), a tooth groove 4a is cut out.

Note that both wheels 4 are formed so as to be rotated and driven in left and right synchronization in the unwinding direction a or the storing direction b by an operation drive mechanism (not shown).

Furthermore, directly below each of the left and right winding wheels 4,
A storage rail plate 5 and an unwinding rail plate 6 are provided upright at the front and rear parts, respectively.
Vertical rail grooves 5a and 6a are bored in the storage rail groove 5a, and the lower end of the storage rail groove 5a is closed in a bag-like manner.

Next, rail grooves 2a and 3 are provided on the inwardly facing surfaces of the left and right guide rails 2 and 3, and the rail grooves 2a and 3 are completely passed through in the vertical direction.
A is bored, and each of the rail grooves 2a and 3a communicates with an unwinding rail groove 6a in the box 1.

On the other hand, each slat 7 constituting the curtain of the shutter has ear shafts 8 and 9 fixedly protruding from the left and right sides, and between the ear shafts 8 and 9 of the vertically adjacent slats 7. are connected via a folding link 10, and the folding link 10 has a short link 11 forming its upper half and a long link 12 forming its lower half.
, and each link 1
1 and 12 are both rotatably attached to the ear shaft 8 or the ear shaft 9.

In this way, the slat curtain formed by connecting a large number of slats 7 in multiple stages has the ear shafts 8 and 9 of the slats 7 near the upper end guided to the storage rail groove 5a, and the part folded downward. The ear shafts 8 and 9 of the slat 7 are connected to the tooth grooves 4a of the winding and feeding wheel 4.
The ear shafts 8, 9 of the slat 7, which are fitted into the winding wheel 4 and are suspended from the winding wheel 4, are guided to the respective guide rail grooves 2a, 3a via the unwinding rail groove 6a.

Therefore, FIGS. 1 to 6 show the slat opening/closing device in the closed position, as will be described later.
In this state, each slat 7 is vertically extended in a straight line.

Next, a pair of fork-shaped brackets 14 are fixed in the depth direction at both upper and lower ends of the inner surface of the guide rail 2 on one side (the left side in the illustration). The operating shaft formed by integrally forming the screw shaft 15 and the sprocket 16 is horizontally supported, and both the upper and lower operating shafts are
They are formed to be synchronously interlocked via a chain 17 and to be rotationally driven by an operation drive mechanism (not shown).

Furthermore, an upright movable rail 18 having a U-shaped cross section is supported between the upper and lower operating shafts, and specifically, a packing piece 19 is fixed to the depth of each groove at the upper and lower ends of the movable rail 18. An internal threaded hole is drilled horizontally through the portion where the movable rail 18
is held so as to be movable along the depth direction of the shutter by being driven by the rotation of the operating shaft.

On the other hand, a Z-shaped crank 20 is fixed and protruded from the tip of the left ear shaft 8 of each slat 7, and the rotating portion 20a of the crank 20 forms an inward opening of the movable rail 18. Rail groove 18a
are guided by.

Next, the operation of the shutter constructed in this manner and the opening/closing device of the embodiment will be described.

Figures 1 to 6 show the slat curtain in a lowered state and the movable rail 1 as described above.
8 is located at the front end of the screw shaft 15 and is in the "slat closed position". When the winding wheel 4 is operated and rotated in the storage direction b to open the curtain from this state, the winding wheel 4 is fed to the wheel 4. The slat 7 that has descended from the front edge of the peripheral surface into the storage rail groove 5a
are successively stacked and stored on the preceding slats in an overlapping state by the bending action of the folding link 10.

Conversely, when the wheel 4 is operated and rotated in the unwinding direction a, the slat 7 sent to the wheel 4 and pulled out from the storage position is moved into the unwinding rail groove 5a.
and then descends through the guide rail grooves 2a and 3a, thereby closing the curtain.

Therefore, either after the curtain is lowered or while the curtain is being raised and lowered, as shown in FIG.
By operating and rotating the operating shaft on which the screw shaft 15 is formed, in the opening direction c, the movable rail 18 is moved to the "slat open position" at the rear end of the screw shaft 15, and each crank 20 is rotated. Since the section 20a is driven in the backward tilting direction, each slat 7 can be opened forward in the horizontal direction at the same time to allow ventilation and sunlight to pass through the curtain, and when the slat 7 is closed, it can be moved in the opposite direction. All you have to do is move the rail 18 back to the front.

In this way, the opening/closing drive of the slat 7 is controlled by the ear shaft 8.
Since this is done by the sliding guiding action of the crank rotating part 20a fixedly attached to the slat 7, even if there is variation in the pitch of the slat 7, the opening/closing drive is performed smoothly. It can also be opened and closed freely.

As described above, according to the blind shutter opening/closing device according to the present invention, the crank is formed to protrude from the ear shaft on at least one side of the slat, and the rotating part of the crank is slidable in the depth direction of the shutter. Since the structure is configured to be guided and driven by an upright movable rail that moves, even if the pitch of each slat varies, the slat can be stopped at any position while being raised or lowered, and each slat can be smoothly rotated to open and close. This has the effect of increasing the functionality of the blind shutter.

[Brief explanation of the drawing]

FIG. 1 is a front view of a blind shutter opening/closing device showing an embodiment of the present invention, FIG. 2 is a side view of the same, and FIGS.
5 is a side sectional view taken along line - and - line, FIG. 5 is a side sectional view taken along line - in FIG. 4, FIG. 6 is a perspective view of FIG. 5, and FIG. It is an operation diagram. 2...Guide rail, 7...Slat, 8...
Ear shaft, 15... Screw shaft, 18... Movable rail, 2
0...Crank, 20a...Swivel part.

Claims (1)

[Scope of utility model registration request] In a blind shutter opening/closing device in which each slat forming a louvered slat curtain is rotatable around ear shafts protruding from both sides thereof, an ear shaft 8 on at least one side of each slat 7 is provided. A crank 20 is formed at the tip of the
A rotating part 20a protruding from the end of the crank 20 in a direction parallel to the ear shaft 8 is inserted into an upright movable rail 18 that is movable in the depth direction of the shutter along the inner surface of the curtain guide rail 2. The movable rail 18 is inserted and guided so as to be raised and lowered freely.
By screwing the screw shaft 15 in the depth direction which is rotationally driven by operation, a sliding position corresponding to the direction of crank rotation when the slat is vertical and a sliding position corresponding to the direction of crank rotation when the slat is horizontal can be established. A blind-type shutter opening/closing device characterized by being movable between the shutters.