Switch device having good sense of operational touch even when sliding operating knob or rocking operating knob is attached thereto
View Patent ↗A switch unit contains a case; a fixed contact members disposed on a bottom wall of the case; conductor plates rockably disposed on the bottom wall; driving bodies disposed on the conductor plates in a rotatable state in which the elevating movement thereof is allowed; a plate spring member for resiliently biasing the driving bodies; and a cover member for covering an upper opening of the case. The driving bodies are provided with pressed parts that protrude above the cover member. When the pressed part is driven to rotate laterally by the rocking operation of the operating knob, the driving body rotates, which causes the conductor plate to slide on the bottom wall. As a result, the switch unit is switched to its ON state.
1. A switch device comprising:
a case having a bottom wall and an upper opening, two sets of switch elements assembled to the case;
a spring member for applying a returning force to the two sets of switch elements; and
a cover member for covering the upper opening of the case,
wherein the switch elements include fixed contact members exposed on an inner wall surface of the case, conductor members disposed in the case and capable of being brought into contact with or separated from the fixed contact members, and rotatable driving bodies for driving the conductor members,
wherein pressed parts are respectively provided in the driving bodies so as to protrude above the cover member, and opposite pressing forces are respectively applied to the pressed parts of the two sets of switch elements, and
wherein, during operation, the driving bodies are driven to rotate via the pressed parts so that the conductor members are brought into contact with or separated from the fixed contact members, thereby allowing any of the two sets of switch elements to selectively perform a set of opening and closing operations, and as the pressing forces are released, the driving bodies are returned to non-operating positions.
2. The switch device according to claim 1 ,
wherein the fixed contact members of the switch elements are disposed on a bottom face of the inner wall surface, and the conductor members respectively provided with inclined surfaces are rockably disposed on the bottom face of the inner wall surface,
wherein the spring member is formed of a plate spring and is attached to the case in a state pressed by the cover member,
wherein the driving bodies are allowed to be elevated and are rotatably held in the case, and sliding parts are provided to be brought into resilient contact with the conductor members by the biasing force of the plate spring member, and
wherein, when the driving bodies are driven to rotate via the pressed parts, the sliding parts slide on the inclined surfaces of the conductor members, the conductor members rock so that they are brought into contact with or separated from the fixed contact members, and at the same time the driving bodies moves against the biasing force of the plate spring.
3. The switch device according to claim 1 ,
wherein the driving bodies are respectively provided with driving arm parts that protrude laterally from the case.
4. The switch device according to claim 3 ,
wherein the driving arm parts are disposed above push switches juxtaposed in the vicinity of the case and the driving bodies are driven to rotate via the pressed parts, so that the driving arm parts operate to press the push switches.
5. The switch device according to claim 1 , further comprising a rockable operating knob having an operating rod inserted between the pressed parts of the two sets of switch elements.
6. The switch device according to claim 1 , further comprising a slidable operating knob having driving projection inserted between the pressed parts of the two sets of switch elements.