Mechanical control device

Details Mechanical control device Mechanical control device

1988-01-15

1988-12-13

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

74 25, F16H 2116

Patent

active

047901993

ABSTRACT:
In a control device, especially for heating and ventilation systems in mo vehicles, comprising a rotatable control knob and a linearly movable setting member, a lever is provided for coupling the knob and member and converting rotational motion of the knob into linear movement of the setting member. To achieve this, the control knob 2 is provided with a guide slope extending at an acute angle to the axis of rotation. A shorter arm portion of the lever is controlled by the guide slope. A longer arm portion of the lever is actuated by movement of the shorter arm portion against the guide slope and acts upon a coupled setting member in a linear manner.

REFERENCES:
patent: 2826921 (1958-03-01), Allen
patent: 2830457 (1958-04-01), Dyer et al.
patent: 3490518 (1970-01-01), Herbon
patent: 3864869 (1975-02-01), Leuenberger
patent: 3886789 (1975-06-01), Brookfield
patent: 4026196 (1977-05-01), Olofsson
patent: 4154119 (1979-05-01), Chapman
patent: 4436163 (1984-03-01), Simpson
patent: 4685350 (1987-08-01), Bauer et al.

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