Retaining mechanism for a tooth assembly

Details Retaining mechanism for a tooth assembly Retaining mechanism for a tooth assembly

1992-09-18

1993-04-27

Taylor, Dennis L.

Excavating

Digging edge

Tooth or adaptor

37452, E02F 928

Patent

active

052050572

ABSTRACT:
Retaining mechanisms are normally utilized for securing a tooth to an adapter. Many times the forces necessary to secure the retaining mechanism in an assembled position is not high enough to maintain assembly during use. In the subject arrangement, the retaining mechanism includes a pin having a means thereon for forming a shoulder and a plurality of conical spring washers each having an inner surface defining an opening having a diameter of a predetermined size which is smaller than the outer diameter of the shoulder means. During assembly, the shoulder means of the pin is forced through the opening of the respective conical spring washers from a concave side thereof. In order to disassemble the pin, the shoulder means of the pin must be forced through the respective openings. In instances where the pin must be removed from the same side that it is installed, a much higher force is required to force the shoulder means through the opening of the respective first, second, and third conical spring washers. Consequently, a retaining mechanism is provided which has very high resistance to inadvertent disassembly during use.

REFERENCES:
patent: 3601911 (1971-08-01), Wood
patent: 3796464 (1974-03-01), Hansen et al.
patent: 3959901 (1976-06-01), Klett
patent: 4006661 (1977-02-01), Sims, Jr.
patent: 4055223 (1977-10-01), Casey et al.
patent: 4096653 (1978-06-01), Kaarlela
patent: 4611417 (1986-09-01), Carlson
patent: 4716668 (1988-01-01), Hahn
patent: 4848013 (1989-07-01), Bowman et al.
patent: 4881331 (1989-11-01), Paizes
patent: 4918843 (1990-04-01), Kiesewetter et al.
patent: 5009017 (1991-04-01), Diekevers et al.

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