Tool changing – With safety means – Guard
Patent
1992-07-06
1993-07-06
Briggs, William
Tool changing
With safety means
Guard
74612, B23Q 3157
Patent
active
052249166
ABSTRACT:
The door moving mechanism of a cutting machine includes an upright support, a machine body adjacent to the upright support and a horizontal guide rail mounted on the machine body immediately above the upright support. A connecting rod slidably provided on the guide rail has a first end connected to a door, and a second rod has a first end pivotally connected to a second end of the first rod and a second end pivotally connected to a second end of the connecting rod. The first rod has a first and second lobed part formed adjacent to the pivot point and cooperatively defining a receiving space between them. A push rod is provided on a casing movably mounted on the upright support and has a free end extending into the receiving space to push one of the lobed parts when the casing travels up and down along the upright support.
REFERENCES:
patent: 3355799 (1967-12-01), Daugherty
patent: 3930302 (1976-01-01), Ochiai et al.
patent: 4499650 (1985-02-01), Cannon et al.
Briggs William
Leadwell CNC Machines Mfg., Corp.
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