Timer switch for vehicle

A timer switch to be installed in a vehicle, comprising:

• a casing;
• a setting member for setting a desired period, which is housed in said casing and is moved when a desired period is to be set;
• a switching means which is turned on when a desired period is set by said setting member;
• a biasing means for biasing said setting member to its original position;
• an escape wheel provided with saw-shaped teeth in the outer periphery thereof, which is rotatably supported within said casing;
• a clutch means which is interposed between said setting member and said escape wheel for disengaging said setting member from said escape wheel while said setting member is operated and engaging said setting member with said escape wheel when said escape wheel turns to return said setting member to its original position;
• an anchor provided with a pair of claws, which is rockably supported within said casing so as to be opposed to said escape wheel;
• and
• an anchor rocking means for rocking said anchor at constant periods to engage said pair of claws with said teeth of said escape wheel alternately;
• said anchor rocking means being provided with a magnetic body fixed to said anchor, an electromagnetic member disposed within said casing so as to be opposed to said magnetic body, and an electric current supplying means for supplying an electric current to said electromagnetic member intermittently,
• said electric current supplying means comprising:
• a transistor of which emitter is connected to said electromagnetic member;
• a condensor of which one side is connected to the base of said transistor and the other side is connected to said switching means;
• and
• another switching means which is connected to said condensor in parallel;
• said another switching means being turned on or off due to the rocking movement of said anchor.

A timer switch to be installed in a vehicle, comprising:

• a casing;
• a setting member for setting a desired period, which is housed in said casing and is moved when a desired period is to be set;
• a switching means which is turned on when a desired period is set by said setting member;
• a biasing means for biasing said setting member to its original position;
• an escape wheel provided with saw-shaped teeth in the outer periphery thereof, which is rotatably supported within said casing;
• a clutch means which is interposed between said setting member and said escape wheel for disengaging said setting member from said escape wheel while said setting member is operated and engaging said setting member with said escape wheel when said escape wheel turns to return said setting member to its original position;
• an anchor provided with a pair of claws, which is rockably supported within said casing so as to be opposed to said escape wheel;
• and
• an anchor rocking means for rocking said anchor at constant periods to engage said pair of claws with said teeth of said escape wheel alternately;
• said anchor rocking means being provided with a magnetic body fixed to said anchor, an electromagnetic member disposed within said casing so as to be opposed to said magnetic body, and an electric current supplying means for supplying an electric current to said electromagnetic member intermittently,
• said setting member is formed like a rod;
• and
• one end of said setting member forms a knob on which several periods are indicated;
• whereby a desired period can be set by pushing said knob into said casing or pulling said knob out of said casing.

A timer switch to be installed in a vehicle, comprising:

• a casing;
• a setting member for setting a desired period, which is housed in said casing and is moved when a desired period is set;
• a switching means which is turned on when a desired period is set by said setting member;
• a baising means for biasing said setting member to its original position;
• an escape wheel provided with saw-shaped teeth in the outer periphery thereof, which is rotatably supported within said casing;
• a clutch means which is interposed between said setting member and said escape wheel for disengaging said setting member from said escape wheel while said setting member is operated and engaging said setting member with said escape wheel when said escape wheel turns to return said setting member to its original position;
• an anchor provided with a pair of claws, which is rockably supported within said casing so as to be opposed to said escape wheel;
• and
• an anchor rocking means for rocking said anchor at constant periods to engage said pair of claws with said teeth of said escape wheel alternatively;
• said anchor rocking means being provided with a magnetic body fixed to said anchor, an electromagnetic member disposed within said casing so as to be opposed to said magnetic body, and an electric current supplying means for supplying an electric current to said electromagnetic member intermittently,
• said escape wheel is rotatably disposed around said setting member so as to be coaxial with said setting member;
• said escape wheel is composed of a cylindrical body having a top wall which is opposed to the upper surface of said setting member;
• said escape wheel is provided with saw-shaped teeth in the outer peripheral surface therof, which are engageable with said pair of claws of said anchor;
• and
• said clutch means comprising, a first teeth which are formed in said upper surface of said setting member, a second teeth which are formed in the under surface of said top wall of said escape wheel so as to be meshed with said first teeth, and a biasing means for biasing said top wall of said escape wheel to said upper surface of said setting member.