Tools – Miscellaneous
Patent
1988-12-05
1989-11-28
Parker, Roscoe V.
Tools
Miscellaneous
29240, 29283, 76 821, 269319, B23Q 300, B23P 1904
Patent
active
048829609
ABSTRACT:
A lawn mower blade lock is provided which is especially useful for servicing a lawn mower by enabling both lifting one side of a lawn mower to expose the blade and simultaneously securing the blade of the mower against rotation during efforts to remove the blade. The lock includes a handle and a pair of blade constraining barriers which extend beneath the mower deck and resist rotation, combined with a locking mechanism which attaches to the mower deck. The locking mechanism preferably includes a threaded shank which clamps the mower deck between the barriers and an abutment on the shank for resisting rotation of the blade relative to the deck. In this manner, the lock is easy to attach and remove, and thus is also useful during storage of the mower to prevent inadvertent starting of the lawn mower by children. Moreover, the lawn mower blade lock is economical to construct and easy to attach.
REFERENCES:
patent: 1076919 (1913-10-01), Speck
patent: 1855537 (1932-04-01), Zachary
patent: 2736088 (1956-02-01), Thygeson
patent: 2976602 (1961-03-01), Nelson
patent: 3122354 (1964-02-01), Rodeback
patent: 3326159 (1974-07-01), Otto
patent: 3678561 (1972-07-01), Mautz, Sr.
patent: 4297921 (1981-11-01), Wydra
patent: 4315339 (1982-02-01), Lightner
patent: 4392264 (1983-07-01), Booe, Jr.
patent: 4457033 (1984-07-01), Lightner
patent: 4564991 (1986-01-01), Taylor
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