Elastomeric driver return assembly for an electro-mechanical fas

Details Elastomeric driver return assembly for an electro-mechanical fas Elastomeric driver return assembly for an electro-mechanical fas

1983-03-29

1985-10-01

Bell, Paul A.

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

227134, B25C 502, B25C 506, B25F 700

Patent

active

045440905

ABSTRACT:
A driver return assembly for an electro-mechanical fastener driving tool. The tool is of the type provided with a driver which is frictionally moved through a working stroke by means of an electrically driven flywheel which presses the driver against a support element, such as a counter rotating flywheel, a low inertia roller, or the like. The driver return assembly comprises at least one elastomeric cord being attached at one of its ends to the driver and at the other of its ends to an anchor within the tool. The at least one elastomeric cord, between its ends, passes about at least two pulleys. One of the pulleys is mounted on a spring supported shaft to compensate for stretch of the at least one elastomeric cord to assure that the driver is returned to its normal, retracted position after each working stroke.

REFERENCES:
patent: 3695215 (1972-10-01), Lambiris
patent: 4042036 (1977-08-01), Smith et al.
patent: 4121745 (1978-10-01), Smith et al.
patent: 4189080 (1980-02-01), Smith et al.
patent: 4198871 (1980-04-01), Dunn et al.
patent: 4204622 (1980-05-01), Smith et al.
patent: 4231190 (1980-11-01), Tieben
patent: 4290493 (1981-09-01), Smith et al.
patent: 4298072 (1981-11-01), Baker et al.
patent: 4323127 (1982-04-01), Cunningham
patent: 4366722 (1983-01-01), Hasler

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