JPH0623678Y2 - Shutter open / close drive - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a shutter opening / closing drive device, and more specifically, when a shutter curtain is wound and unwound, a coating film of a slat is peeled off or noise is generated. The present invention relates to an opening / closing drive device for a shutter that can prevent the above.

[Conventional technology]

Generally, when the shutter curtain, which moves up and down along the guide rails standing upright on both sides of the opening, is unwound and unwound on the winding shaft in the shutter case, the shutter curtain bends and contacts the upper end of the guide rail. There is known an opening / closing drive device in which a pusher for guiding the shutter curtain is provided in the lintel portion in order to prevent the shutter curtain.

[Problems to be solved by the present invention]

However, in the conventional opening / closing drive device, the shutter curtain directly contacts the pusher wheel and is guided, and when the shutter curtain is further wound on the winding shaft, the slat that is wound up first comes into contact with the slat that is wound up afterwards. There are drawbacks such as film peeling and contact noise.

In addition, in order to reduce the rising dimension of the shutter case,
When the winding shaft and the pusher are arranged substantially horizontally, there is a problem that the load acting on the pusher by the shutter curtain is increased, and the coating film peeling of the slat is further increased.

The present invention has been made in view of the above circumstances in order to solve these problems, and its purpose is to provide a push car in the ascending / descending path of the shutter curtain, An object of the present invention is to provide a shutter opening / closing drive device that can smoothly open and close an opening without peeling off a coating film of a slat or making a contact noise when winding and unwinding a shutter curtain.

[Means for Solving the Problems]

In order to solve the above problems, the technical means adopted by the present invention is that the other end of a belt body made of cloth or the like having one end fixed to the winding shaft in the movement path of the shutter curtain from the winding shaft to the guide rail. A pusher having an ammunition that winds the belt side and urges the belt body to the side where the belt is unwound from the take-up shaft. When the shutter curtain is raised, the belt body is overlapped with the shutter curtain to be wound on the winding shaft, and when the shutter curtain is lowered, the opening is closed while the belt body is being rewound to the push car. It is what

[Action]

Therefore, according to the present invention, when the shutter is opened and closed, the rotating surface of the push car wound with a belt body made of cloth or the like slides on the back surface of the shutter curtain and guides up and down, so that the shutter curtain directly contacts the push car. In addition, when the shutter curtain rises, the belt body wound around the push car overlaps with the shutter curtain and the opening is opened while winding it around the winding shaft. The wound slits do not come into direct contact with each other, and it is possible to prevent the coating film of the slats from peeling off or the generation of contact noise. On the other hand, when lowering the shutter curtain, the push car that is in sliding contact with the back surface of the shutter curtain rotates, and the shutter curtain is guided from directly above the guide rails while automatically rewinding the belt body, so the opening is smooth. The part can be closed. Since the pusher is equipped with an ammunition that urges the belt body wound on the winding shaft in the direction of rewinding the belt to the pusher, the belt body is always in a tension state between the pusher and the winding shaft. Is held.

〔Example〕

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1 is a shutter curtain, a plurality of slats 2,
2 are vertically connected to each other, and vertically move along the guide grooves of the guide rails 4 standing on both sides of the building opening 3 to open and close the opening 3. Reference numeral 5 denotes a shutter case which is installed on the lintel portion 6 above the opening, and the upper end of the guide rail 4 is connected and connected. Reference numeral 7 denotes a cylindrical pusher provided on the ascending / descending path of the shutter curtain 1, and the pusher 7 has the shutter curtain 1 in the shutter case 5.
The plurality of support members 8 arranged in the width direction of the rotary shaft 9
Is rotatably supported through the pusher 7
Guides the shutter curtain 1 which moves up and down. Reference numeral 10 denotes a take-up shaft to which the upper edge of the shutter curtain 1 is connected. The take-up shaft 10 is located behind the push car 7 and is supported in a substantially horizontal manner with the push car 7, and is not shown in the drawings. The shutter curtain 1 is rotated by being interlocked with a container and guided by a pusher 7 to wind up the shutter curtain 1.

As shown in FIG. 2, the pusher wheel 7 is wound around the other end of a belt body 11 made of cloth or the like, one end of which is fixed to the winding shaft 10, and the rotating surface of the pusher wheel 7 is the guide rail 4. The shutter curtain 1 is slidably mounted on the back surface of the shutter curtain 1 at a position directly above to guide the shutter curtain 1 up and down. Then, when the shutter curtain 1 is raised, the belt body 11 fed from the pusher wheel 7 which is rotated as the shutter curtain 1 is raised overlaps with the shutter curtain 1 and is wound around the winding shaft 10 to open the opening. When the shutter curtain 1 descends, the shutter curtain 1
The pusher wheel 7 that rotates with the lowering of the
The opening is closed while rewinding the belt body 11 fed out from. Further, the pusher wheel 7 is provided with a spiral spring 12 for urging the belt body 11 wound on the take-up shaft 10 in the direction of rewinding the belt body 11 to the pusher wheel 7, and between the pusher wheel 7 and the take-up shaft 10. Therefore, the belt body 11 is always kept in a tension state. Reference numeral 13 is a pin for fixing the spring 12 to the push wheel 7.

FIG. 3 shows another embodiment, in which the winding shaft 14 is mounted diagonally above and rearward of the push wheel 15.

In the configuration as described above, when opening and closing the opening 3,
The shutter curtain 1 is a push car 7 around which a belt body 11 is wound.
The shutter curtain 1 does not come into direct contact with the pusher wheel 7 because it is guided to and wound around the winding shaft 10 and unwound. Then, at the time of winding, the belt body 11 wound around the pusher wheel 7 overlaps with the shutter curtain 1 to wind up the winding shaft.
Since it is wound around 10, the slats 2 that are wound up first do not come into contact with the slats 2 that are wound up earlier, and the belt body 11 always serves as a cushion to peel off the coating film of the slats 2 or to make contact. It is possible to prevent the generation of sound.
On the other hand, when the shutter curtain 1 descends, the rotating push car 7 guides the shutter curtain 1 from directly above the guide rail 4 while automatically rewinding the belt body 11 fed from the winding shaft 10, so that Even if there is a slight change in the outer diameter, without contacting the guide rail,
The opening can be closed smoothly. Further, since the belt body 11 is biased toward the rewinding side by the spring 12 attached to the pusher wheel 7, the shutter curtain 1 hangs between the pusher wheel 7 and the winding shaft 10 by its own weight, and the pusher wheel 7 coasts. Will never slip.

The shutter case 5 includes a pusher wheel 7 and a winding shaft 10.
Since and are arranged horizontally, the rising dimension can be made as small as possible, while when the winding shaft 14 is mounted diagonally above and behind the pusher 15 as shown in other embodiments. In addition, the front and rear width of the shutter case 5 can be reduced.

In this embodiment, a plurality of pushers 7 are provided, but the present invention is not limited to this, and it goes without saying that they may be integrally formed in the width direction of the shutter curtain 1.

[Effect of device]

In short, the present invention winds the other end side of a belt body made of cloth or the like having one end fixed to the winding shaft and winding the belt body in the movement path of the shutter curtain from the winding shaft to the guide rail. A pusher having an ammunition for urging the shaft from the shaft to rewind is provided, and the rotating surface of the pusher is slidably contacted with the back surface of the shutter curtain, and is positioned directly above the guide rail. The belt body is overlapped with the shutter curtain and wound on the winding shaft, and when descending, the opening is closed while rewinding the belt body to the push car.
When the shutter is opened and closed, the rotating surface of the pusher with a belt wound around it slides on the back of the shutter curtain and guides it up and down, so there is no fear that the shutter curtain will be flawed. Since the belt body overlaps with the shutter curtain and the opening is opened while winding it on the winding shaft, the belt body always serves as a cushion to prevent peeling of the coating film and contact noise. You can Then, when the shutter curtain descends, the pusher that rotates the belt body that has been unwound from the winding shaft automatically rewinds and guides the shutter curtain from directly above the guide rail, so there is a slight change in the outer diameter of the pusher. Even if there is, the opening can be smoothly closed without coming into contact with the guide rail.

[Brief description of drawings]

The drawings show an embodiment of a shutter winding device according to the present invention. FIG. 1 is a side view, FIG. 2 is an enlarged perspective view of a pusher, and FIG. 3 is a side view showing another embodiment. Is. In the figure, 1 ... Shutter curtain, 2 ... Slat, 3
…… Aperture, 4 …… Guide rails, 5 …… Shutter case, 6 …… Climb part, 7 …… Pusher, 8 …… Supporting member,
9 ... Rotary shaft, 10 ... Winding shaft, 11 ... Belt body, 12 ... Spring, 13 ... Fixing pin, 14 ... Winding shaft, 15 ... Pusher.

Claims (1)

[Scope of utility model registration request] 1. A shutter belt moving path from a winding shaft to a guide rail is wound around the other end of a belt body made of cloth or the like having one end fixed to the winding shaft, and the belt body is pulled from the winding shaft. A pusher having an ammunition for urging to the rewinding side is provided, the rotation surface of the pusher is slidably contacted with the back surface of the shutter curtain, and is positioned immediately above the guide rail, and when the shutter curtain is raised,
An opening / closing drive device for a shutter, characterized in that the belt body is overlapped with a shutter curtain and wound around a winding shaft, and when the belt body descends, the opening is closed while the belt body is being rewound into a push car.