Electrically operated steering shaft lock device

Details Electrically operated steering shaft lock device Electrically operated steering shaft lock device

2005-05-10

2005-05-10

Stodola, Daniel P. (Department: 3676)

Locks

Special application

For control and machine elements

C070S183000, C070S252000

Reexamination Certificate

active

06889532

ABSTRACT:
An electrically-operated steering lock device is capable of unlocking a steering shaft even when steering wheel torque is applied to the steering shaft. The electrically-operated steering lock device comprises a lock bolt structure for locking the steering shaft. The lock bolt structure is composed of a first lock bolt which is pivotably held on one radial side in a neighborhood of the steering shaft and which has a protruding piece to be engaged on its inner peripheral side with a receiving portion of the steering shaft, and a second lock bolt which is pivotably held on another radial side in the neighborhood of the steering shaft. The second lock bolt is rotatable to a protruding position and a retreat position along with the first lock bolt, and has a protruding piece to be engaged on its inner peripheral side with the receiving portion of the steering shaft. The protruding pieces of the lock bolts are each moved in a direction away from respective engaging surfaces of the receiving portion of the steering shaft when engagement is to be released.

REFERENCES:
patent: 1394872 (1921-10-01), White
patent: 1442003 (1923-01-01), Rohrer
patent: 2964935 (1960-12-01), Lombardi
patent: 3400563 (1968-09-01), Lempke et al.
patent: 4267748 (1981-05-01), Grunewald et al.
patent: 4576024 (1986-03-01), Weber
patent: 4984481 (1991-01-01), Jawdoszyn
patent: 5092147 (1992-03-01), Mochida et al.
patent: 6053067 (2000-04-01), Garnault et al.
patent: 6234039 (2001-05-01), Garnault et al.
patent: 3174008 (2001-03-01), None
patent: 2002-234419 (2002-08-01), None

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