JPH0624557Y2 - Shutter curtain attachment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a shutter curtain attachment device for attaching a shutter curtain in a shutter, particularly a heavy shutter, to a winding shaft.

[Prior Art] FIG. 3 shows an overall outline of a heavy shutter, in which a winding shaft 1 is a side bracket 3 of a shutter case 2.
The shutter curtain 5 is rotatably supported by a bearing 4, and the upper end of the shutter curtain 5 is attached to the winding barrel portion 6 of the winding shaft 1. One end of the winding shaft 1 and the output shaft of the opening / closing motor 7 are connected by a power transmission mechanism 8 composed of a sprocket and a chain, and the opening / closing motor 7 moves the winding shaft 1 through the power transmission mechanism 8 in a desired direction. The shutter curtain 5 can be wound up and down by turning the shutter curtain 5 up to now. Conventionally, the shutter curtain 5 is attached to the winding barrel portion 6 as shown in FIG.

The slats 9 constituting the shutter curtain 5 are cut into short pieces, and a plurality of (two in the figure) recesses 10 are formed by pressing, and a mounting hole 11 is formed in the bottom surface of the recesses 12 for mounting. Engage the required number of slat 9a at the top,
Insert the bolts 13 inserted into the mounting holes 11 of the hanging brackets 12 into the winding barrel 6
The shutter curtain 5 and the winding drum portion 6 are engaged with each other by screwing onto the screw portion 14 and fixing the hanging bracket 12 to the winding drum portion 6 as shown in FIG.

[Problems to be Solved by the Invention] In fixing the suspension fitting 12 to the winding barrel portion 6, it is necessary to adjust the winding barrel portion 6 in the axial direction and in the circumferential direction. The mounting hole 11 is a long hole that is long in the axial direction so that the suspension fitting 12 can be adjusted only in the axial direction. This is because the size of the recess 10 is limited by the width of the slats 9 and the like.

In the case of a heavy shutter, the weight of the shutter curtain 5 is particularly large, and the central portion of the shutter curtain 5 hangs down due to bending of the winding shaft 1, uneven meshing of the engaging portions of the slats, and the like. Due to this descent, the seat plate 15 (see FIG. 7) attached to the lower end of the shutter curtain 5 did not match the floor surface or the lintel, and a gap was created to make the appearance unpleasant.

As a measure for eliminating this gap, as shown in FIG. 6, the screw portion 14 is moved toward the center by allowing the center portion to drip downwards by Δ.
h, Δh ′ are shifted in the winding direction, or as shown in FIG. 7, the mounting hole 16 of the seat plate 15 is a vertically long hole, and when the seat plate 15 is mounted, it is bent in the direction opposite to the downward direction, Apparently the seat plate 15 was made to match the floor and the lintel.

However, in the former case, the shift amount must be calculated for each product in accordance with the weight, width, and length of the shutter curtain, and the screw portion must be processed, resulting in poor productivity and high cost. In addition, since the on-site adjustment cannot be performed at all, it is not possible to make a delicate adjustment with the seat plate, the lintel, and the floor surface. Furthermore, it occurs due to loosening of the meshing state between the slats. The droop over time cannot be adjusted. On the other hand, the latter is a laborious and time-consuming task to adjust the floor and the lintel to match each other.
Furthermore, when the center of the shutter curtain hangs down, there is a problem that a large load acts on the engaging portions at both ends of the shutter curtain.

Next, the suspension fitting 12 has the same cross-sectional shape as the slat 9, and the mounting location of the suspension fitting 12 is in a stepped state in which it is suddenly raised from the surface of the winding barrel 6. Therefore, as shown in FIG. 5, when the shutter curtain 5 is wound, a partial swelling occurs, which may cause irregular winding.

In view of the above situation, the present invention is to provide a shutter curtain fastening device capable of easily adjusting the sagging of the shutter curtain and effectively preventing occurrence of irregular winding.

[Means for Solving the Problems] The present invention provides a shutter curtain with a hanging metal fitting having an attachment body portion that abuts along the winding body portion of the winding shaft and a hook portion having a hook-shaped cross section that engages with the slat end edge. The required number of slats are engaged with the uppermost slats, and the suspension fittings are fixed to the winding barrel with bolts.At least the suspension fittings at both ends are fixed by mounting holes long in the axial direction of the winding barrel. The hanging metal fittings at the required positions excluding the parts are fixed by mounting holes that are long in the circumferential direction of the winding drum part.

[Operation] The hanging brackets at both ends are adjusted in the width direction with respect to the shutter curtain and fixed to the winding barrel, and the hanging brackets on the center side are adjusted to the winding barrel at the position where the hanging of the shutter curtain is adjusted. Fasten and fasten the upper end of the shutter curtain to the winding shaft.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

Suspension fittings on the top slat 9a of the shutter curtain 5.
Engage the required number of 17 (4 in this figure). As shown in FIG. 2, the hanging metal fitting 17 is a hook having a hook-shaped cross section that engages with the end portion of the slat 9a and the attachment body portion 18 that abuts along the peripheral surface of the winding drum portion 6 of the winding shaft 1. The additional body portion 18 is formed with a horizontally elongated hole 20 that is long in the axial direction of the winding barrel portion 6 and a vertically elongated hole 21 that is long in the circumferential direction.

In addition, a predetermined position on the same generatrix of the winding drum portion 6, for example, two screw portions are provided at both ends and two screw portions are provided at the central portion.

When attaching the shutter curtain 5, suspending metal fittings at both ends
For 17, insert the bolt 13 into the horizontally elongated hole 20
17 is abutted against the end piece 22 fixed to both ends of the uppermost slat 9a, and the hanging element for the winding barrel 6 is adjusted so that the axial center of the winding barrel 6 and the width center of the shutter curtain 5 are aligned. The position of the metal fitting 17 is adjusted, and the hanging metal fitting 17 is fixed to the winding barrel portion with the bolt 13.

By fixing the suspending metal fitting 17 in a state of abutting against the end metal 22, the movement of the shutter curtain 5 in the width direction is restricted, and by this restriction, the shift between the slats at the time of winding and lowering is suppressed.

With respect to the central hanging member 17, the bolt 13 is inserted into the vertically long hole 21, and the hanging member 17 is fixed to the winding body part by the bolt 13 while being shifted in the winding direction by the hanging amount of the central portion of the shutter curtain 5. To do. Therefore, the descent of the central portion of the shutter curtain 5 is adjusted at the suspension base of the shutter curtain 5, and further this adjustment can be made only by shifting the suspension base metal fitting 17 in the circumferential direction of the winding barrel 6. It is remarkably simple and can be adjusted according to the amount of hanging of each shutter curtain, and the hanging bracket can be used as a common part.

Furthermore, if the shape of the hanging bracket 17 is determined so that the head of the bolt 13 fits into the concave portion of the slat when the shutter curtain 5 is wound around the winding drum portion 6 rapidly, the shutter curtain 5 can be rapidly wound in the wound state. There is also no partial excitement.

In the above embodiment, the hanging metal fittings are formed with the horizontally long hole 20 and the vertically long hole 21 so that both end portions and the central portion are jointly provided. The original metal fitting may be provided with only the vertically long hole.

[Advantage of the Invention] As described above, according to the present invention, it is possible to adjust the shutter curtain regardless of its size and according to the local situation. Since the screw part of the part can be processed without considering the scale of the shutter, productivity can be improved, and irregular winding due to discontinuity of the shutter curtain engaging part can be prevented. It is also possible to reduce the burden of applied weight.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view of a hanging base metal fitting in the embodiment, and FIG. 3 is a schematic view showing an entire weight shutter. 4 and 5 are perspective views of a conventional example, and FIG.
FIG. 7 is an A-A arrow view of FIG. 4, FIG. 6 is an explanatory view showing an example of a shutter curtain droop adjustment measure, and FIG. 7 is an explanatory view showing another example of the same. 1 is a take-up shaft, 5 is a shutter curtain, 6 is a winding body, 9 and 9a are slats, 17 is a metal fitting for hanging, 18 is an attachment, 19 is a hook, 20 is a horizontally long hole, 21 is a vertically long hole. Show.

Claims (1)

[Scope of utility model registration request] 1. A suspension metal fitting having an attachment portion that abuts along a winding drum portion of a winding shaft and a hook portion having a hook-shaped cross section that engages an edge of a slat, is provided on a slat at the uppermost end of the shutter curtain. So that the suspension fittings are fixed to the winding barrel with bolts, and at least the suspension fittings at both ends are fixed by mounting holes that are long in the axial direction of the winding barrel. The shutter curtain fastening device, wherein the metal fitting is fixed by a mounting hole that is long in the circumferential direction of the winding drum portion.