JPH0743433Y2 - Shutter-curtain suspension base structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a suspension base structure of a shutter curtain in a shutter that opens and closes an opening of a building or the like.

[Conventional technology]

In the conventional suspension base structure, a suspension base slat consisting of a short slat connected to the upper part of the shutter curtain is attached to the mounting part on the circumference formed on the peripheral surface of the winding wheel by tightening it with a suspension base bolt. It was

[Problems to be solved by the invention]

By the way, in general, the suspension base may be damaged because the load is directly applied at the start of winding the shutter curtain or when reaching the lower limit position. Therefore, there is a problem in that a special suspension base structure that takes into account the load of the shutter curtain is used, such as using a strong suspension base slats or a specially shaped suspension base structure.

The present invention has been made in view of the above problems, and an object thereof is to provide a hanging base structure that can withstand the load of the shutter curtain with a simple structure by using the conventional hanging base slats. .

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention forms a U-shaped recess on the peripheral surface of a winding wheel for winding a shutter curtain, the upper ends of both sides of which are curved so as to be continuous with the peripheral surface. The lock portion is connected to a hanging base slat in which a mounting portion having a shape of curving along the curved surface from the concave side surface of the winding wheel is formed so as to be superposed and adhered to the surface of the winding wheel. Suspension of a shutter curtain mounted by fixing means so that the head of the fixing member does not project on the peripheral surface of the winding wheel in the recess of the winding wheel so that the head of the fixing member does not protrude on the peripheral surface of the winding wheel. The original structure.

[Action]

According to this invention, the hanging slat to which the shutter curtain is connected has the bent-shaped mounting portion at the tip side thereof fixed in the concave portion of the winding wheel, so that it is bent when the load of the shutter curtain acts. Even the part receives the load, the dispersed lightening load acts on the fixed part in the recess,
The hanging base has improved durability and can withstand long-term use.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a suspension base structure of a shutter curtain, and FIG. 2 is an explanatory view showing a winding state of the shutter curtain.

An example in which the suspension base structure of the present invention is applied to a lightweight shutter will be described. A plurality of winding wheels 11 are axially fitted at intervals in the longitudinal direction of a winding shaft 10 mounted between both brackets (not shown) on the ceiling side so that the biasing force of a torsion coil spring (not shown) is applied. It is configured to act on the winding wheel 11. Further, the shutter curtain 12 in which the long slats 12a are connected to each other by the interlocking portions 12b thereof has the suspension wheel slats 13 in which three short slats 13a are connected to each other by the interlocking portions 13b.
As many as 11 shutters 12 are connected to the upper interlock 12b.

The winding wheel 11 has U-shaped recesses 14 ... Formed in the same shape on the peripheral surface 11a at each of four equally divided positions, the upper ends of both sides being curved and continuous with the peripheral surface. There is. In the concave portion 14 'in which the suspension slat 13 is mounted among the concave portions 14 ..., a mounting hole is formed in the side surface 14a and the nut 1
5 is stuck. Further, stays 16 and 16 which are used to align a plurality of take-up wheels 11 and also serve as reinforcements are horizontally fixed to two opposing recesses 14 ″ and 14 ″ of the recesses 14 ... .

On the other hand, the suspension base slats 13 are the slats 13 on the tip side.
a from the side surface 14a of the recess 14 'of the winding wheel 11 to the peripheral surface.
It is formed in a bent shape along 11a to form a mounting portion 13 '. Since the suspension base slats 13 are roll-formed steel strips, the bending of the mounting portions 13 'can be processed in the field. The side surface 14a of the recess 14 'in the mounting portion 13'
Attach a mounting hole to the part located at
At 17, the suspension base slat 13 is attached by tightening with the nut 15 of the winding wheel 11. Since the hanging slat 13 is configured as described above, the load when the shutter curtain 12 starts to be wound or when the shutter curtain 12 reaches the lower limit position is applied even at the bent portion of the mounting portion 13 '. Upon receipt, the load is dispersed and a reduced force acts on the slats 13a near the suspension bolts 17. As a result, the suspension base slats 13 can be applied to the conventional suspension base slats without adopting a special strong suspension base slats, and the durability is improved to withstand long-term use.

As described above, the hanging slat 13 is attached to each of the plurality of take-up wheels 11, and the shutter curtain 12 is taken up as a take-up wheel.
It will be constructed in a suspended structure starting from 11. When the shutter curtain 12 is wound by the above hanging base structure, it is wound as shown in FIG. 2, and the hanging base bolt 17 does not contact the shutter curtain 12 and the shutter curtain 12
It does not damage the slats 12a. Further, the winding diameter of the shutter curtain 12 does not become large, and the winding weight of the shutter curtain 12 does not become eccentric and the winding deviation of the shutter curtain 12 is not induced.

The take-up wheel 11 is formed with recesses 14 having the same shape so that it can be used both for attaching the suspension slat 13 and for attaching the stays 16, 16. Further, in this embodiment, the reverse winding form of the shutter curtain is taken as an example, but it is needless to say that it can be applied to the case of the normal winding form.

[Effect of device]

Since the present invention is configured as described above, even if the load of the shutter curtain directly acts on the hanging slat, the hanging slat does not change the primary load at the curved portion along the circumferential surface from the concave side surface of the winding wheel. Accordingly, the dispersed lightening load acts on the fixed portion in the recess. As a result, the suspension base can withstand the load even if the conventional suspension is used without using the reinforced slats or the specially shaped slats, and the durability is improved, so that the suspension base can withstand long-term use.

Further, since the suspension base slats are mounted in the recesses by the fixing means, the suspension base bolts and other fixing means do not come into contact with the shutter curtain when the shutter curtain is wound, and the slats of the shutter curtain may be damaged. It will disappear.

[Brief description of drawings]

The drawings relate to an embodiment of the present invention. FIG. 1 is an explanatory view showing a suspension base structure of a shutter curtain, and FIG. 2 is an explanatory view showing a winding state of the shutter curtain. 11 …… Winding wheel, 11a …… Surface 12 …… Shutter curtain 13 …… Suspension slats, 13 ′ …… Mounting part 14 …… Recess, 14a …… Recess side 16,16 …… Stay 17 …… Suspending Original bolt (fixing means)

Claims (1)

[Scope of utility model registration request] 1. A winding wheel for winding a shutter curtain is formed with U-shaped recesses on both sides of the winding wheel, the upper ends of which are curved so as to be continuous with the circumferential surface, and the winding is provided at an interlock portion of the upper slat. Connect the suspension slat that has a mounting portion with a shape that overlaps and adheres to the winding wheel surface by curving along the curved surface from the side surface of the recess of the wheel, and mount the mounting portion of the suspension slat in the recess of the winding wheel. A structure for suspending a shutter curtain, characterized in that the head portion of the fixing member is attached by a fixing means so as not to project to the peripheral surface of the winding wheel.