Driving apparatus for a sheet shutter

Abstract

PROBLEM TO BE SOLVED: To provide a driving device of a sheet shutter which is advantageous for miniaturization and cost reduction. SOLUTION: The driving device of the sheet shutter includes: a body part 1a inserted from the distal end side to one end of a cylindrical drum 104; and a base part 1b attached to a shutter case 102. In the body part 1a, a motor part 10, a brake part 20 and a deceleration part 30 are housed. The deceleration part 30 has a connection part 34 exposed from the body part 1a, and the connection part 34 is connected to a flange wall 2 fixed to the inner wall of the drum 104 without interposing a shaft.

Description

technical field [0001] The invention relates to a drive device for driving the rotation of a roll of a sheet type rolling door. Background technique [0002] figure 1 An example of a sheet type rolling door is shown. The sheet-type rolling door 100 is often installed at the entrance and exit G of factories, warehouses, etc. for the purpose of preventing insects, dust, and blocking the air inside and outside. There are various types of sheet-type rolling doors 100 , but in recent years, small-sized and low-priced sheet-type rolling doors have been particularly demanded. [0003] The sheet-type shutter door 100 includes: a shutter sheet 101 made of cloth or synthetic resin; a shutter box 102; a shutter guide 103, and the like. The shutter box 102 is arranged in the horizontal direction along the upper edge of the entrance and exit G, and the shutter sheet 101 is drawn in and out from the shutter sheet extraction port on the lower surface of the shutter box 102 . A pair of ...

AI Technical Summary

Problems solved by technology

As a result, the fixing part is required to have strength, and there is a disadvantage that it is difficult to ensure durability in terms of promoting miniaturization and price reduction.

[0012] Furthermore, since the diameter of the drum 104 is desired to be as small as possible, it is not possible to ensure sufficient clearance between the end of the drum 104 and the drive unit 110

Thus, when the reel 104 deflects, there is a risk that the end of the reel 104 will come into contact with the drive means 110

In addition, since the shaft fixing member 115 needs to be lightened while ensuring strength, the formation of the boss portion 115b and the like tend to become a complicated structure, which is difficult in terms of productivity.

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