Locking joint for a ratchet wrench

Details Locking joint for a ratchet wrench Locking joint for a ratchet wrench

1996-08-29

1997-12-09

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

811778, 403 97, B25B 1346, F16C 1100, F16D 112

Patent

active

056948182

ABSTRACT:
A locking joint for ratchet wrench having a handle and ratchet head assembly. The locking joint comprises a pin cage having a plurality of pins designed to lock and unlock the handle, a shoulder bolt connected to the pin cage for releasing the pins from within the handle of the wrench and a guide bolt having a counter bore for receiving the shoulder bolt and connected to the ratchet head assembly. The handle is unlocked from the ratchet head assembly when the shoulder bolt is depressed by the user and the plurality of pins are withdrawn from the handle. The guide bolt in connection with the plurality of pins and shoulder bolt assists in maintaining a fixed angle between the ratchet head assembly and handle and serves to align the locking joint.

REFERENCES:
patent: 139520 (1873-06-01), Rigg
patent: 928375 (1909-07-01), Frick
patent: 1109032 (1914-09-01), Bersted
patent: 1499186 (1924-06-01), Murphy
patent: 1568442 (1926-01-01), Carver
patent: 1840685 (1932-01-01), Witherup
patent: 2889160 (1959-06-01), Nelson
patent: 4406186 (1983-09-01), Gummow
patent: 4747328 (1988-05-01), Howard
patent: 4794829 (1989-01-01), Mesenhoeller
patent: 5419221 (1995-05-01), Cole

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