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US 4,058,797 AGranted
Turn signal system
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsTomoaki Sekiguchi, Hiroyasu Miyao, Hidekazu Shimizu
Life of this patent
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Abstract
A turn signal system for a vehicle which comprises an automatically resettable actuating switch mechanism, an electronic control unit to produce a cancelling signal after a predetermined time interval on the basis of a signal supplied by a speed detection unit, an intermittently lighting device controllable by said cancelling signal so as to be terminated by said cancelling signal, and one or more pairs of direction display lamps provided on both right and left sides of a vehicle.
Claims21
A turn signal system for a vehicle comprising:
- at least one direction display lamp for indicating a right turn and a left turn of the vehicle, said lamps being respectively provided on the right and left sides of the vehicle;
- flasher means coupled to said display lamps for intermittently lighting at least one direction display lamp, said flasher means having a control input for receiving a control signal;
- and means responsive to a control signal for electrically terminating the operation of said flasher means to extinguish said at least one direction display lamp;
- an actuation switch device for mechanically switching the right or left direction display lamp including a self-returning actuating lever and a selectively movable block means moved by the operation of the actuating lever, said selectively movable block means including:
- contact means coupled to said flasher means for causing said intermittent lighting of the right or left direction display lamp as a function of the direction of actuation of the actuating lever;
- and
- means for retaining said movable block means in its moved position when the actuating force is released from the actuating lever and the actuating lever returns to its initial position;
- a source of a signal which is a function of the traveling speed of the vehicle;
- control means coupled to said control input of said flasher and responsive to the return of said actuating lever after it is actuated and responsive to said signal representing said vehicle traveling speed, for feeding a control signal to said control input of said flasher means for electrically terminating the operation of said flasher means such that when the vehicle speed is below a predetermined speed the control signal is generated when the vehicle finishes running a predetermined distance, and when the vehicle speed is above said predetermined speed the control signal is generated when the vehicle finishes running for a predetermined time;
- and
- means for electrically establishing initial conditions in said control means in response to actuation of the actuating lever of the actuation switch device.
8 more elements
A turn signal system for a vehicle comprising:
- an actuation switch device including:
- an actuating lever which is swingable relative to an initial neutral position to indicate a right or left turn of the vehicle and which is capable of being pushed and displaced inwardly;
- means for automatically returning said actuating lever to said initial neutral position when an operative swinging force is released;
- a switch assembly having fixed contacts and a selectively movable block coupled to said actuating lever, a part of said selectively movable block and said fixed contacts comprising first switching means and said block being movable to a right or left turn-indicating position responsive to swinging of said actuating lever or to a neutral position responsive to a pushing in of said actuating lever, and
- said second switching means comprising contacts provided on said actuating lever and fixed contacts associated therewith;
- at least one direction display lamp provided on said vehicle to indicate a right turn and a left turn of the vehicle, respectively;
- flasher means coupled to said at least one direction display lamp for intermittently lighting said at least one direction display lamp in response to the movement of said selectively movable block to a position for indicating a right or left turn of the vehicle, said flasher means including a control input and means responsive to a control signal at said control input for electrically terminating the operation of said flasher means to extinguish said at least one direction display lamp;
- control means coupled to said control input and responsive to the speed of the vehicle exceeding a predetermined speed for generating a control signal when the vehicle has run for a predetermined time after operation and release of the actuating lever, and responsive to the speed of the vehicle being below said predetermined speed for generating a control signal when the vehicle has covered a predetermined distance after operation and release of the actuating lever;
- and
- means coupled to said second switching means for electrically establishing initial conditions in said control means in response to the actuation of the actuating lever.
7 more elements
Dependencies are inferred from the claim text.