JPH0211586Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a take-up shaft mounting structure for a construction shutter for attaching the take-up shaft to a bracket.

Generally, in this type of architectural shutter,
The left and right ends of the winding shaft, on which the winding wheel is rotatably supported, are fixed to brackets on the left and right edges of the shutter case. However, in the past, this product was directly supported and fixed using a bearing fitting fixed to the bracket by welding or bolts, so the entire load applied to the winding shaft was directly received and supported by the bearing fitting. The bearing fittings must be made of extremely strong material, and the bearing fittings must be particularly firmly fixed to the bracket, which reduces work efficiency when manufacturing the shutter case. This was a problem due to its shortcomings such as:

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned actual situation, and is designed so that the load applied to the winding shaft can be directly received by the bracket via the bolt that fixes the bearing fitting. In this way, the direct load applied to the winding shaft is not only applied to the bearing fitting side as in the past, but is also distributed to the bracket side, and therefore the bearing fitting has to be particularly strong. Not an unnecessary forgiveness,
The purpose of this invention is to provide a winding shaft mounting structure for architectural shutters that can be easily attached to a bracket and thus facilitate the manufacture of the bracket. A feature is that a bolt for fixing a bearing fitting attached to a bracket on the side of the shutter case is inserted into the inner circumference of the winding shaft, and the winding shaft is supported on the bracket side via the inserted bolt. That is.

Next, the present invention will be explained in more detail based on an embodiment shown in the drawings. In the drawing, reference numeral 1 denotes a shutter case for an architectural shutter, and the shutter case 1 includes a face plate 2 that covers the top, bottom, and front, and brackets 3 that are integrally fixed to the left and right edges of the face plate 2. Therefore, the configuration is the same as before.

4 is a winding shaft on which a winding wheel 6 for winding up the shutter curtain 5 is rotatably supported; both ends of the winding shaft 4 are supported on the bracket 3 side. There is. That is, bracket 3
One side of the bearing fitting 7, which is bent into a substantially L-shape, is fixed to the inner wall surface of the housing via bolts 8 and 9. Of these bolts 8 and 9, in this embodiment, the lower bolt The length of the bolt 9 is set to be long so that it can be inserted to the inner periphery of the winding shaft 4 and directly receive the load applied to the winding shaft 4. In addition, the window side 7a of the bearing fitting 7 has a long hole 7.
b is drilled, and the fixing bolt 10 is inserted into the elongated hole 7b.
By penetrating and fixing it to the winding shaft 4,
The winding shaft 4 is mounted in a fixed state in which rotation around the axis is restricted.

In the embodiment of the present invention configured as described above, the opening is opened and closed by winding and unwinding the shutter curtain 5 by forward and reverse rotation of the winding wheel 6. In this embodiment, the winding shaft 4 that pivotally supports the wheel 6 has a bearing fitting 7.
and the bolt 9 for fixing the bearing fitting 7. Therefore, the load applied to the winding shaft 4 is not directly applied only to the bearing fitting 7 as in the conventional case, but is applied directly to the bolt 9. It also directly joins the bracket 3 side via the bracket. Therefore, there is no need to make the bearing fitting 7 from a particularly strong material and fixing it to the bracket 3 side more strongly than necessary, as in the past, and the forming and mounting of the bearing fitting 7 is simplified. becomes extremely simple. Moreover, in the present invention, since the winding shaft 4 is supported by effectively utilizing the bolts 9 for attaching the bearing fittings 7, there is also the advantage that parts can be used for multiple purposes, which is extremely convenient.

It should be noted that the present invention is of course not limited to the above-mentioned embodiment, and the point is that the winding shaft may be supported by a bolt for mounting a bearing fitting, and therefore, instead of one bolt, the winding shaft may be supported by a bolt for mounting a bearing fitting. A plurality of bolts may be inserted into the winding shaft, and the winding shaft is supported only by the bolts without being supported in contact with the bearing, floating from the bearing, so that most of the load applied to the winding shaft is not supported. It may also be supported by a bracket via a bolt. Furthermore, in order to increase the strength of the bearing fitting, it may be curved into a semi-cylindrical shape.

In summary, the present invention involves inserting a bolt for fixing a bearing fitting attached to a bracket on the side of the shutter case into the inner periphery of the winding shaft for a shutter curtain, and then inserting the bolt into which the winding shaft is inserted. Since it is configured to be supported on the bracket side, the load applied to the winding shaft can be directly received by the bracket via the bolt inserted into the winding shaft, which reduces the load directly applied to the bearing fittings. As a result, there is no need to use a bearing fitting that is particularly strong in terms of strength as in the past, and to fix it to the bracket more firmly than necessary. Furthermore, since the member that supports the take-up shaft makes effective use of the bolt that fixes the bearing fitting to the bracket, parts can be used for multiple purposes, which simplifies the production of the shutter case. It can provide excellent workability.

[Brief explanation of the drawing]

The drawing shows one embodiment of the winding shaft mounting structure for a construction shutter according to the present invention.
FIG. 2 is a front view of the main parts of the shutter case, FIG. 2 is a perspective view of the bearing fittings, and FIG. 3 is a perspective view of the main parts showing the attached state. In the figure, 1 is the shutter case, 2 is the drawing board, 3 is the bracket, 4 is the winding shaft, 5 is the shutter curtain, 6 is the winding wheel, 7 is the bearing fitting, 8 and 9 are bolts, and 10 is the fixing bolt. It is.

Claims (1)

[Scope of utility model registration request] Insert a bolt for fixing the bearing fitting that is attached to the bracket on the side of the shutter case into the inner periphery of the take-up shaft for the shutter curtain, and support the take-up shaft on the bracket side through the inserted bolt. A winding shaft mounting structure for an architectural shutter characterized by the following structure.