JPS5818558Y2 - Shutter winding drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a device for rotationally driving a winding shaft of a shutter.

Conventionally, when installing shutters at the entrances and exits of buildings, shutters with a width corresponding to the opening of the entrance are used, but the shutter winding shaft is directly connected to the output shaft of the shutter opening/closing machine. Therefore, it is difficult to install the shutter in a narrow space, and since it is not possible to finely adjust the length of the shutter winding shaft, it takes time to accurately match the opening width of the entrance and exit, and maintenance after installation is difficult. There were drawbacks such as difficulty in conducting inspections.

In order to eliminate such drawbacks, the present invention provides a shutter winding drive device characterized in that a shutter winding shaft is connected to the output shaft of a shutter opening/closing machine so as to be finely adjustable in the axial direction. It is something.

To explain the drawings showing the embodiment, 1 is a shutter case fixed above the entrance of a building, and left and right brackets (la, lb) are integrally provided on both sides of the shutter case.

Reference numeral 2 denotes a shutter opening/closing machine fixed to the inner surface of one bracket 1a, and its output shaft 3 is horizontally projected toward the other bracket 1b. Bearing piece 4 below the outer circumference
The upper surface of the bearing piece 4 is formed into a semicircular concave arc surface with the output shaft 3 as the center.

Further, a flat plate-shaped projecting piece 3a is integrally provided at the tip of the output shaft 3 projecting above the bearing piece 4.

Reference numeral 5 denotes a shutter winding shaft whose one end is rotatably supported by the other bracket 1b of the shutter case 1, and an engagement groove 6 of an appropriate depth is formed in the other end in the axial direction from the center of the end surface. A notch is formed, and the other end of the shaft 5 is rotatably placed on the upper surface of the bearing piece 4, and the engagement groove 6 can be moved and adjusted in the axial direction on the protruding piece 3a of the output shaft 3. It is fitted.

As shown in FIGS. 5 and 6, one end of the shaft 5 has a U-shaped insertion groove 7 on the inner surface of the bracket Hb.
This receiver is supported by the bearing 9 by inserting the flange portion 9a of the bearing 9 into the insertion groove 7 of the metal fitting 8 to identify the bearing.

10.10 is a disc-shaped wheel fixed to the shutter winding shaft 5 at appropriate intervals in the axial direction, and the upper end of the shutter curtain 11 is fixed to the outer peripheral surface thereof;
These wheels 10.10 by the rotation of the shaft 5
A shutter curtain 11 is wrapped around the top.

Note that the outer diameter of this wheel 10.10 is formed larger than the outer diameter of the shutter opening/closing device 2, so that the shutter curtain 11
The winding layer can also be wound around the outer circumferential side of the switch 2.

With this structure, during assembly, the dimensions between the left and right brackets) la and lb are fixed according to the width of the shutter installation part, and the bearing 9 of the shutter winding shaft 5 is fixed to the bracket 1b. It is attached to the insertion groove 7 of the metal fitting 8, and the retaining groove 6 provided at the other end of the shaft 5 is inserted into the protrusion piece 3a of the output shaft 3 of the shutter opening/closing machine 2 so that it is supported by the bearing piece 4, and the output The shaft 3 and the shaft 5 are connected on the same axis.

After it is installed, when in use, the shutter opening/closing device 2 is driven by a motor (not shown) to rotate the shutter winding shaft 5 via the output shaft 3, and the shutter curtain 11 is placed on the wheel 10.10. It can be rolled up or hung down.

As described above, the present invention fixes the brackets (la and lb) at appropriate intervals in the shutter winding section, fixes the shutter opening/closing device 2 to one bracket 1a, and fixes the shutter winding shaft to the other bracket Hb. 5 is rotatably supported, and a bearing piece 4 is fixed to the end face of the shutter opening/closing machine 2 so as to be bent around the lower circumference of the output shaft 3 of the shutter opening/closing machine 2. The other end of the shutter winding shaft 5 is supported, and a protrusion 3a protruding from the end surface of the output shaft 3 is engaged with a retaining groove 6 cut out in the center of the other end surface of the shaft 5. Since the output shaft 3 of the shutter opening/closing device 2 and the shutter winding shaft 5 are separated from each other, it is easy to attach and remove the shutter to the shutter mounting part, and it is easy to maintain. In addition, the free end of the shaft 5 is supported by a bearing piece 4 protruding from the end face of the shutter opening/closing device 2, so that it can be disposed on the same axis as the output shaft 3. Since the engaging groove 6 formed in the end of the shutter winding shaft 5 is engaged with the protruding piece 3a protruding from the end surface of the shutter winding shaft 3, the rotation of the output shaft 3 can be reliably transmitted to the shaft 5. Of course, each shaft 5 can be moved in the axial direction to make fine adjustments according to the width of the shutter mounting portion, so that the shutter can be mounted accurately.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective view of an electric shutter equipped with a winding device of the present invention, FIG. 2 is a cross-sectional view showing a state in which the shutter curtain is rolled up, and FIG. 3 is a cross-sectional view of the shutter curtain. is a plan view of the winding drive device of the present invention, FIG. 4 is an enlarged plan view showing the connection state of the shutter opening/closing device and the rotating shaft, and FIG. 5 is a front view of the main parts showing the supporting state of the right end of the rotating shaft. , FIG. 6 is a side view of the bracket provided at the right end of the winding drum. la, lb...Bracket, 2...Shutter opener, 3...Output shaft, 4...
・Bearing piece, 5... Shutter winding shaft, 6... Engagement groove.

Claims (1)

[Scope of utility model registration request] Brackets Ha are provided at appropriate intervals on the shutter winding portion.
lb is fixed, and the shutter opening/closing machine 2 is fixed to one bracket Ha, and one end of the shutter winding shaft 5 is rotatably supported on the other bracket 1b. A bearing piece 4 is fixed so as to surround the lower circumference of the output shaft 3 of No. 2, and the other end of the shutter winding shaft 5 is supported by the bearing piece 4. A protruding piece 3a is provided on the end face of the output shaft 3 in the notched retaining groove 6.
A shutter winding drive device that engages the.