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US 4,394,546 AGranted
Composite switch assembly
AssigneeAlps Electric Co., Ltd.
InventorMasatoshi Harumatsu
Life of this patent
Estimating the term…
Abstract
A composite switch assembly including in a cylindrical rotary knob, four contact mechanisms in which four quadrantal push buttons are combined and arrayed into a circular form and which are operated by the four push buttoms respectively, and two contact mechanisms which are operated by turning the rotary knob clockwise and counterclockwise respectively, thereby to permit a switch arrayal and a control configuration corresponding to the moving directions of a controlled object.
Claims13
A composite switch assembly comprising:
- (a) a cylindrical rotary knob;
- (b) four push buttons each being substantially quadrantal when viewed from above and arrayed circularly within said rotary knob in a manner to be movable upwards and downwards a predetermined amount;
- (c) a switch base plate disposed underneath said rotary knob;
- (d) partition means for partitioning said four push buttons, a lower part of said partition means being fixed to said switch base plate;
- (e) co-acting means provided respectively on said push buttons and said partition means for holding said push buttons in place within said rotary knob;
- and
- (f) means provided on said push buttons and said partition means for holding said rotary knob in place;
- and
- (g) contact means including six contact mechanisms disposed on said switch base plate, four of said contact mechanisms each being located under a respective one of said push buttons and adapted to be actuated by depression of the respective one of said push buttons, and the remaining two of said contact mechanisms each being respectively actuated by turning said rotary knob.
6 more elements
Dependencies are inferred from the claim text.