JPS58794Y2 - Shutter slat winding device - Google Patents

Description

[Detailed description of the invention] This invention relates to a winding device for shutter slats, and its purpose is to be able to attach winding drums of various diameters, and to be able to be easily attached and detached from the outside of the shutter case. The object of the present invention is to obtain a shutter slat winding device.

Conventionally, winding devices for winding slats have shafts that are bearings mounted on opposite sides of the walls of the shutter case on both sides, and the sprocket and wheel on which the winding drum is mounted are rotated on the shafts via bearings or metal. It is normal to fit it freely.

However, with this mechanism, only the winding drums with the same diameter can be used for a pair of opposing sprockets and wheels, and the shafts are pre-installed inside both sides of the shutter case, which are bearings. was very troublesome.

Therefore, the present invention was devised in view of the above-mentioned drawbacks, and by providing a ring-shaped wall and a ring-shaped protruding piece on a pair of opposing sprockets and wheels, it is possible to attach winding drums with several different diameters. In order to rotatably fix the sprocket and wheel attached to the winding drum, the shutter case can be easily attached from the outside of both sides of the shutter case using bolts or the like.

Next, an embodiment of the present invention will be explained with reference to the drawings.The shutter slat winding device main body 1 has shafts 2, 2 fixed to opposing positions from the outside of both sides of the shutter case 12 with bolts 10 and 10, respectively. The shafts 2, 2 are provided with bearings 6.
．． The sprocket 3 and the wheel 4 are fitted through the sprocket 6 to form an integrated mechanism.

Reference numeral 11 is a pin body for safety when the shaft 2, sprocket 3, and wheel 4 are unfitted.

Annular walls 8, 8 are protruded from opposite positions of the sprocket 3 and wheel 4, and annular projecting pieces 9, 9 are provided inside the annular walls 8 at predetermined intervals at opposite positions. There is.

Next, the winding drum 5 is fitted between the annular wall 8 and the annular protruding piece 9 and fixed with fasteners 7, 7.

At this time, depending on the diameter of the winding drum, it may fit into the inner periphery of the annular protruding piece 9 or the outer periphery of the annular wall 8 as shown in FIG.

Further, the sprocket 3 is linked with a switch 15 through a chain 16, and a shutter slat 13 is attached to the winding 5.

Reference numeral 14 indicates a guide groove of the shutter slat.

Next, the installation method and operation of the shutter slat winding device of the present invention will be explained. The diameter of the winding drum 5 is determined according to the size of the shutter slat 13, and the winding drum 5 is cut to an appropriate length.

Next, depending on the diameter of the winding drum 5, the sprocket 3 and the wheel 4 are placed between the opposing annular wall 8 and the annular projecting piece 9, on the inner periphery of the annular projecting piece 9, and sometimes on the outside of the annular wall 8. The winding drum 5 is fitted around one of the circumferences and fixed using fasteners 7, 7.

The shafts 2 and 2 are integrally fitted to the sprocket 3 and wheel 4 attached to both ends of the winding drum 5 through bearings 8 and 8, and the device is housed in a shutter case 12 and bolts are inserted from the outside of the case. 10.10 shall be fixed.

The sprocket 3 is connected to the opening/closing machine 15 through a chain 16, and as the opening/closing machine 15 rotates, the sprocket 3 also rotates 2, and the shutter slat 13 wound around the winding drum 5 is wound up. be.

Since the present invention is constructed as described above, it is possible to attach several types of winding drums, and it is very practical as it can be used for winding devices for shutter slats of various sizes.
Furthermore, since the method of mounting the shutter is simply tightened with bolts from the outside of the shutter case, the mounting is extremely simple, which is a great advantage.

In addition, the ring-shaped wall is made to protrude at a position where the sprocket and the wheel face each other, and the ring-shaped protruding pieces are provided inside the ring-shaped wall at a predetermined interval, so that the winding drum can be attached very easily and firmly. Furthermore, since the sprocket and wheel are integrated with the shaft through bearings, the sprocket and the wheel can be made into an integrated mechanism, so the size can be greatly reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall view of the shutter winding device, Fig. 2 is a partially cutaway side view, Fig. 3 is a sectional view showing main parts, FIG. 4 is a sectional view showing another method for forming a winding drum. Reference numeral 1 is the main body of the shutter slat winding device, 2 is the shaft, and 3
is a sprocket, 4 is a wheel, 5 is a winding barrel, 6 is a bearing, 8 is a circular wall, 9 is a circular projecting piece, 10 is a bolt, 1
2 is a shutter case.

Claims (1)

[Scope of utility model registration request] The shafts are each fixed with bolts from the outside of both sides of the shutter case, and a wheel is rotatably mounted on one sleeve via a bearing, and a sprocket is rotatably mounted on the other shaft via a bearing. A circular wall is made to protrude at a position where the wheel and sprocket face each other, and a circular protruding piece is provided at a predetermined interval inside the circular wall, and between the circular wall and the circular protruding piece, a circular wall is provided. A shutter slat winding device characterized in that a winding drum is fitted to the inner periphery of a shaped protruding piece.