Piping structure of a flexible tube for use in a machining cente

Details Piping structure of a flexible tube for use in a machining cente Piping structure of a flexible tube for use in a machining cente

1997-11-10

1999-10-05

Knight, Anthony

Pipe joints or couplings

Connector for conduit housing electromagnetic line:

Having box and connector

285320, 285920, 745005, 745015R, F16L 4100, F16L 3900, F16L 2500, G05G 108

Patent

active

059611561

ABSTRACT:
An attachment (5) is detachably mounted on the lower end of a main shaft ram (4) in such a manner that the attachment (5) can rotate about horizontal and vertical axes. The power line of a motor installed in the attachment (5) is inserted through a pair of flexible tubes (13, 25) with its ends connected to a terminal box of the attachment (5) and a terminal box (29) of the main shaft ram (4). The flexible tubes (13, 25) have a pair of connectors (15, 26) which are coupled to each other by a coupling mechanism (27) when the attachment (5) is mounted on the main shaft ram (4). A drum (30) and a rodless cylinder 32 provided above the connector (26) constitute a mechanism (36) for lifting the flexible tubes (13, 25). When the rotation of the attachment (5) about either or both of the axes causes slack in the flexible tube (13), the lifting mechanism (36) eliminate the slack bay pulling up the drum (30) and thus the flexible tube (25). The pulled-up portion of the flexible tubes (13) can be returned into the attachment (5) by lowering the drum (30).

REFERENCES:
patent: 3697928 (1972-10-01), Hammell
patent: 3841665 (1974-10-01), Capot
patent: 4182558 (1980-01-01), Matsuo
patent: 4499341 (1985-02-01), Boyd
patent: 4508404 (1985-04-01), Frawley
patent: 4793203 (1988-12-01), Staggl et al.
patent: 4955250 (1990-09-01), Fisher
patent: 5590749 (1997-01-01), Wagner et al.

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