JPH0510147Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention unwinds a movable winding type shutter that is wound around a winding shaft using an opening/closing drive source such as a motor, and winds the winding material to open doors, windows, etc. , large area room,
This relates to a movable wind-up type shutter that shuts off and opens staircases, etc.

[Conventional technology]

Generally, blocking entrances, windows, large rooms, staircases, etc.
For shutters that open, the bracket that serves as its support is often attached to the ceiling or a wall adjacent to the ceiling.

At this time, the outer diameter of the winding in the above-mentioned shutter during winding on the winding shaft is different during complete unwinding, complete winding, and halfway unwinding.

Therefore, conventional winding type shutters are
As shown in FIG. 4, an opening/closing drive source 5 such as a motor
When the bracket 3 equipped with the winding shaft 4 that unwinds and winds up the shutter 10 is fixed to the wall B adjacent to the ceiling A, the winding outer diameter when completely unwinded and the winding diameter when completely winded are determined. A guide rail 9 serving as a regulating body for the shutter core C is installed in the middle between the shutter core C and the shutter core C, and the shutter 10 passing through this intermediate position unwinds and takes up the shutter core C at that point. In order to avoid being greatly affected by the above winding outer diameter,
An attempt was made to give smoothness to the above operation by quickly releasing the point.

Conventionally, a smoother 11 was placed between the lintel 14 and the bracket 3 using a push wheel or a smoother shaft for slidingly contacting the shutter 10 and making the shutter center C constant.

[Problem that the invention attempts to solve]

Due to the above configuration, the conventional winding type shutter has the following problems.

(1) A smoother 11 is placed between the bracket 3 and the pillow 14 in order to keep the shutter core C constant, but this position is the intermediate zone between when the shutter 10 is completely unwound and when it is completely wound. However, smooth unwinding and winding could not always be guaranteed.

(2) Smoother 1 between bracket 3 and lintel 14
1, a considerable amount of space (ceiling height) was required between the lintel 14 and the ceiling A, which made it difficult to install the shutter in places where the ceiling height was insufficient. .

[Means for solving problems]

In order to solve the above-mentioned problems of the conventional technology, this idea involves installing a hanger rail suspended from the ceiling in a downward-sloping state, and suspending each bracket from the hanger rail via a slidable hanger roller. The shutter take-up shaft is rotatably supported on both brackets, and one bracket is equipped with a transmission mechanism and an opening/closing drive source for transmitting rotation to the shutter take-up rotary shaft, and a smoother is installed on the downward slope side of the hanger rail. The shutter winding rotary shaft moves along the slope of the hanger rail in response to the winding and unwinding operations of the shutter winding drum, so that the smoother is always in contact with the winding outer circumferential surface of the shutter winding drum. This is a movable winding type shutter.

[Effect]

With the above configuration, when using a movable take-up type shutter, when unwinding a fully wound shutter onto the take-up shaft, when the opening/closing drive source is operated in the forward rotation direction, the Since the winding shaft connected to the winding shaft also rotates in the forward rotation direction, the starting end side of the shutter wound on this winding shaft starts unwinding along the circumferential surface of the smoother.

At this time, the outer diameter of the winding shaft gradually decreases in proportion to the amount of unwinding of the shutter, but the bracket into which the winding shaft is fitted is suspended from the slanting hanger rail via rollers. Because of what I am doing,
The bracket moves forward toward the smoother in accordance with the amount of diameter reduction of the shutter.

Therefore, the shutter can complete unwinding while maintaining a constant shutter core.

In addition, when winding up a used shutter, if the opening/closing drive source is operated in the reverse direction, the winding shaft will also reverse in conjunction with this drive source, so the base of the shutter wound on this winding shaft will be The end side starts winding along the circumferential surface of the smoother.

At this time, the outside diameter of the winding of the shutter gradually expands, but since the smoother that is in sliding contact with this outside diameter of the winding is fixed in position, the bracket moves backward along the hanger rail. This allows the shutter to complete winding while maintaining a constant shutter core.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the drawings.

The movable winding type shutter according to this invention is constructed as follows.

In other words, as shown in Figures 1 to 3, there is a wall on the left and right sides of the ceiling A where the shutter is installed, running parallel to the bottom of the rectangular tube in the longitudinal direction toward the wall B adjacent to the ceiling A. A pair of left and right hanger rails 1 with a through groove are installed on the ceiling A.
By supporting each anchor bolt 12 buried in the ground and tightening the nut 13 to each bolt 12, the front end side is separated from the ceiling A surface, thereby raising the rear end side and lowering the front end side. It is installed by

In this embodiment, the hanger rollers 2 assembled in a shape that exposes the hanging rods 2a from the bottom grooves of the rails 1 downward to the outside are fitted in the front and rear positions of the left and right hanger rails 1, and the hanger rollers 2 are installed in the front and back positions of the left and right hanger rails 1. It is arranged so that it can be moved.

At each lower end position of the front and rear rollers 2 exposed to the outside from the hanger rail 1 at the left and right positions, there is a pair of left and right brackets 3 which are long and have a U-shaped cross section.
It is suspended so that it can move together with the roller 2.

On the front side of the left and right brackets 3 described above, a winding shaft 4, which becomes a winding core of a shutter 10 to be described later, is rotatably mounted with one shaft end thereof protruding to the outside of the bracket 3 on this side. It's inserted.

Furthermore, an opening/closing drive source 5 such as a motor for unwinding and winding the shutter 10 (to be described later) is mounted on the rear surface on one side of the bracket 3, with its output shaft protruding outward on one side. ing.

A small-diameter sprocket 6 is attached to the output shaft of the opening/closing drive source 5 that protrudes outward on one side of the rear part, and a large-diameter sprocket is attached to the shaft end of the winding shaft 4 that protrudes outward on one side of the front part. A series of chains 8 are wound around both sprockets 6 and 7.

Next, the winding shaft 4 of the bracket 3 has a shutter 10 having a length that reaches the floor surface (not shown) directly below the shaft 4 during unwinding.
When the opening/closing drive source 5 is operated, the winding is carried out in such a manner that it is possible to unwind and wind up the winding shaft 4 that rotates integrally through the transmission of the chain 8 that is wound around the sprockets 6 and 7. ing.

That is, the upper end of the shutter 10 is fixed to a part of the outer peripheral surface of the winding shaft 4 with a bolt 10a,
The rotation of the take-up shaft 4 enables the shutter 10 to be unwound and taken up.

Furthermore, even if the bracket 3 moves back and forth as the outer diameter of the winding of the shutter 10 wound on the winding shaft 4 changes, the front end of the outer diameter of the winding will be The smoother 11, such as a push wheel or smoother shaft, is adjusted to the height position of the winding shaft 4 in the advancing direction so that the outer peripheral surface is in sliding contact with the shutter core C, which is always at a constant position. They are arranged at intervals parallel to the axial direction of the winding shaft 4. In line with the shutter core C that coincides with the outer circumferential surface of the smoother 11, guide rails 9 with U-shaped cross sections are installed below both sides of the shutter core C so that they are opposed and parallel to the vertical direction. The shutters are arranged as a whole into a set of movable winding type shutters.

When using the movable winding type shutter with the above configuration, when unwinding the fully wound shutter 10 onto the winding shaft 4, first the opening/closing drive source 5 is turned on and off by operating a hand switch (not shown) or the like. When the winding shaft 4 is driven in the forward rotation direction, the winding shaft 4 is also interlocked in the normal rotation direction through the transmission means of the chain 8 which is wound around the sprockets 6 and 7 of both the drive source 5 and the winding shaft 4. The starting end side of the shutter 10 wound around the winding shaft 4 starts unwinding while descending along the circumferential surface of the smoother 11 disposed on the wall B side.

At this time, the outer diameter of the winding gradually decreases in proportion to the amount of unwinding of the shutter 10.

However, the bracket 3 on which the take-up shaft 4 is fitted is in a state in which the rollers 2 suspending the bracket 3 can freely roll within the hanger rail 1 which is attached obliquely to the ceiling A. Therefore, it moves forward toward the wall B side each time by an amount commensurate with the diameter reduction described above.

Therefore, the shutter 10 can smoothly complete unwinding while holding a certain shutter core C in sliding contact with the front surface of the smoother 11.

Also, when winding up the shutter 10 after use,
When the opening/closing drive source 5 is driven in the reverse direction by operating the switch opposite to the above, the winding shaft 4 also rotates in the reverse direction (winding direction) in conjunction with the reverse operation of the drive source 5. The base end side of the shutter 10 wound around the take-up shaft 4 starts winding along the circumferential surface of the smoother 11 disposed on the wall B.

At this time, the winding outer diameter of the shutter 10 gradually expands, but since the smoother 11 that is in sliding contact with the front end circumferential surface of the winding outer diameter fixes the position, the shutter 10 gradually expands in diameter as described above. An extrusion force acts on the winding shaft 4 located at the center of the winding shaft 4. Therefore, the bracket 3 moves backward along the hanger rail 1 due to the rolling of the roller 2, and thereby the shutter 10 completes winding while maintaining a constant shutter core C. I can do it.

[Effect of idea]

This idea allows the unwinding and winding position of the shutter, which is in sliding contact with the front surface of the smoother, that is, the shutter core, to be kept constant by moving the bracket back and forth, so that the unwinding and winding of the shutter can always be done smoothly. Since there is no need for a smoother as in the conventional case directly below the bracket, this type of shutter can be easily installed even in places where the ceiling height is insufficient.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the configuration and installation mode of the movable winding type shutter according to this invention, Fig. 2 is a partial plan view taken in the direction of - arrow in Fig. 1, and Fig. 3 is taken in the direction of Fig. 1. The rear view and FIG. 4 are side views of the conventional example. 1...Hanger rail, 2...Hanger roller, 3...Bracket, 4...Take-up shaft, 5
...Opening/closing drive source, 10...Ceiling, B...Wall, C...
...Shutter core.

Claims (1)

[Scope of utility model registration request] A hanger rail is suspended from the ceiling surface in a downward slope, each bracket is suspended from the hanger rail via a freely sliding hanger roller, and a shutter winding shaft is rotatably supported on both brackets. , one bracket is equipped with a transmission mechanism that transmits rotation to the shutter take-up rotating shaft and an opening/closing drive source, and a smoother is placed and fixed on the downward slope side of the hanger rail to respond to the winding and unwinding operations of the shutter winding drum. A movable take-up type shutter characterized in that the shutter take-up rotary shaft moves along the slope of the hanger rail so that the smoother is always in contact with the outer peripheral surface of the shutter take-up drum.