Title:
SPIRAL CONVEYOR
Document Type and Number:
WIPO Patent Application WO/2021/039485
Kind Code:
A1
Abstract:
A novel structure of a spiral conveyor is provided which is also suitable for conveyance of curl-shape and permanent-shape cuttings in a lathe system while suppressing the occurrence of noise caused by vibration. At the lowest point, a conveyance spiral 3 of this spiral conveyor 10 for conveying chips contacts the ground (the ground point P) at the lowest point of a tray 2, and the conveyance spiral 3 is not in contact with a pair of rails in opposite positions on the inner surface of the tray 2 and extending in the length direction, and small gaps t are formed between the conveyance spiral 3 and the rails. Because it is only at the lowest point that the conveyance spiral contacts the tray, similarly to conventional rail-less designs (fig. 3), a low level of noise is achieved, similar to that in the rail-less designs. Further, during conveyance of the curl-shape and permanent-shape chips of the lathe system, even if the chips become entangled in the conveyance spiral, since the conveyance spiral is eccentric and contacts the rail intermittently, conveyance can be carried out forcibly without clogging, similarly to the case of conventional rail designs.
Inventors:
MAEDA TAKAAKI (JP)
NAKASHIMA SUGIHIDE (JP)
NAKASHIMA SUGIHIDE (JP)
Application Number:
PCT/JP2020/031061
Publication Date:
March 04, 2021
Filing Date:
August 18, 2020
Export Citation:
Assignee:
TOKYO SEIMITSU HATSUJO CO LTD (JP)
International Classes:
B23Q11/00; B65G33/32
Foreign References:
| JPH043711A | 1992-01-08 | |||
| JP2002154030A | 2002-05-28 | |||
| JP2008044046A | 2008-02-28 | |||
| JP2012171041A | 2012-09-10 | |||
| JP2012061588A | 2012-03-29 | |||
| JPH0364910U | 1991-06-25 | |||
| JPS59183413U | 1984-12-06 | |||
| JP2018001400A | 2018-01-11 |
Attorney, Agent or Firm:
KUWABARA Fumio (JP)
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