JPH0617996Y2 - Seat shutter guide structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a guide structure for a seat shutter whose side edges are guided by guide rails.

[Problems to be Solved by the Prior Art and Invention] Today, a sheet shutter configured to move up and down by guiding a sheet material such as a cloth material as a smoke-proof screen, an awning or a partition is known. There is. However, in this case, in the closed state, the sheet material is configured such that both edges of the sheet material are simply inserted into the guide grooves of the guide rail, so that the sheet is stretched or inflated due to pressure from wind or the like. At that time, the seat may come off from the guide rail, and various wind resistant structures have been proposed for this reason, but there are still problems with wind strength and the like.

[Means for Solving the Problem] The present invention was devised with the object of providing a guide structure for a seat shutter that can eliminate these drawbacks in view of the above-mentioned circumstances, and a sheet material In a seat shutter configured by using guide rails in which both edge portions are movably fitted, a sheet guide coil having a diameter larger than a width of a guide groove into which the sheet material side edge portion is fitted is provided in the guide rail. On the other hand, the sheet material side edge portion is provided with a guide hole that matches the coil pitch of the sheet guide coil, and the sheet guide coil is rotated in synchronization with the opening / closing speed of the sheet material to guide the opening / closing operation of the sheet material. It is characterized in that it is interlockingly connected to a coil rotating mechanism for successively projecting and retracting the coil tip portion into and from the hole.

Further, according to the present invention, it is possible to reliably prevent the sheet material from coming off the guide rails due to wind pressure and the like, and to always perform the accurate opening / closing operation.

[Embodiment] In the drawings, 1 is a sheet shutter, and the sheet shutter 1 has a sheet material 2 made of cloth or the like and an opening / closing device 3
(Either manually or electrically driven, but electrically driven is used in the present embodiment.) By this, the winding is performed on the winding drum 4a that rotates integrally with the winding shaft 4 that rotates forward and backward. By being unrolled, the opening is moved up and down to open and close the opening, and all of them have the conventional configuration.

The left and right edges of the sheet member 2 are provided with guide holes 2 at intervals corresponding to the pitch of the sheet guide coil 8 described later.
The first bevel gear 5a is integrally fixed to the left and right sides of the winding shaft 4, and when the driving force of the switch 3 causes the winding shaft 4 to rotate, the first bevel gear 5a is formed. Is also configured to rotate.

Reference numeral 6 denotes a guide rail which is provided upright in the opening so as to face both left and right edges of the unwound sheet material 2 and which guides the sheet material 2. A guide groove 6a along which side edges of the sheet material 2 slide. Is formed, and a support shaft 7 rotatably supported between the floor surface and the ceiling is provided in the interior 6b. Above the support shaft 7, that is, the unwinding of the sheet material 2 is performed. A second bevel gear 5b, which meshes with the first bevel gear 5a and rotates the support shaft 7 forward and backward, is integrally fixed above the position. Further, on the outer periphery of the support shaft 7, spiral sheet guide coils 8 are mounted from the floor surface to above the opening so as to be wound symmetrically with respect to the left and right support shafts 7. One end on the floor surface side is fixed to the support shaft 7 so as to rotate in association with the rotation of the support shaft 7. Further, the upper end 8a of the sheet guide coil 8 is in a free state.
The sheet guide coil 8 rotates integrally with the support shaft 7 as the seat member 2 opens and closes. In that case, the vertical movement speed of the seat member 2 and the rotation of the sheet guide coil 8 are increased. The speed is set by adjusting the gear ratio or the like so that the sheet material 2 moves up and down by the coil pitch in time with the sheet guide coil 8 making one rotation, and the tip end portion of the sheet guide coil 8 appears and disappears in the guide hole 2a. Is configured. Incidentally, in this case, when the sheet material 2 is fully opened, the upper end portion of the sheet guide coil 8 is set to be fitted in at least the lowermost guide hole 2a.

In the embodiment of the present invention configured as described above, the sheet material 2 is opened and closed while the left and right edges of the sheet material 2 are guided by the guide rails 6, and the opening and closing operation is now performed to close the opening. When the machine 3 is driven, the sheet 2 is unwound from the winding cylinder 4a, and in the guide rail 6,
The sheet guide coil 8 is rotated at the same timing, and the leading end portion 8a is sequentially fitted into the guide hole 2a of the sheet material 2 from which it descends. As a result, when the sheet material 2 is closed,
Since the entire area of the side edge portion is supported by the sheet guide coil 8, strong and reliable guide holding can be performed. Therefore, even if the sheet material 2 expands due to wind, the side edge portion is Since it does not come off from the guide rail 6 and the opening / closing operation of the sheet material 2 can be performed under strong wind, it is excellent in crime prevention and has no one-sided descent.

Note that the pitch of the sheet guide coil can be selected as large or small as desired, and as described above, it can be determined by the timing of the winding speed and the rotation speed of the sheet guide coil. It can be selected in consideration of various conditions.

[Advantages] In short, since the present invention is configured as described above, the seat is installed in the guide rail while it is a seat shutter in which both edges of the seat material are opened and closed by being guided by the guide rail. By rotating the sheet guide coil at a timing that matches the opening / closing speed of the sheet guide coil, the sheet material is supported in a state in which it is retained from the guide rail over substantially the entire side edge of the sheet material. It is possible to prevent accidentally falling, it is strong against wind, it also has excellent crime prevention properties, and it is possible to prevent the phenomenon of one-sided falling of the seat and distortion, and perform an accurate and smooth opening and closing operation. You can

[Brief description of drawings]

The drawings show an embodiment of a guide structure for a seat shutter according to the present invention. FIG. 1 is a partially cutaway front view, and FIG. 2 is a cross-sectional view of a guide rail portion. In the figure, 2 is a sheet material, 5a and 5b are first and second bevel gears, 6 is a guide rail, 7 is a spindle, and 8 is a sheet guide coil.

Claims (1)

[Scope of utility model registration request] 1. A seat shutter configured by using guide rails in which both edge portions of a sheet material are movably fitted, wherein a width of a guide groove in which the sheet material side edge portion is fitted is greater than a width of a guide groove in which the sheet material side edge portions are fitted. While a large-diameter sheet guide coil is installed inside, a guide hole that matches the coil pitch of the sheet guide coil is provided on the side edge of the sheet material, and the sheet guide coil is rotated in synchronization with the opening and closing speed of the sheet material. A guide structure for a sheet shutter, which is interlocked with a coil rotation mechanism that sequentially retracts and retracts a coil tip portion into a guide hole of a sheet material that is opened and closed.