Patent US3927436A successfully refreshed from Google Patents.
US3927436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-shaft double-motion drive mechanism
Assignee: Nissan Motor Co Ltd
•
Filing: 1974-02-15
•
Granted: 1975-12-23
•
Expires: 1994-02-15
Abstract
Abstract A multiple-shaft double-motion drive mechanism which comprises a reversible motor having an output shaft rotatable in opposite directions, a first gear rotatable with the output shaft of the motor, a second gear in mesh with the first gear, first and second shafts to be respectively and separately driven by the first and second gears, a first one-way clutch connected between the first gear and the first shaft for transmitting the rotation of the motor output shaft to the first shaft when the output shaft is rotated in one direction, and a second one-way clutch connected between the second gear and the second shaft for transmitting the rotation of the motor output shaft when the output shaft is rotated in the other direction, wherein the first shaft may be drivingly connected to translatory means adapted to convert the rotary motion of the first shaft into a linear reciprocating motion whereas the second shaft may be drivingly connected to means adapted to deliver rotary motions. Examples of applications of the drive mechanism include an automaticallyoperated wiper assembly of a lamp of a lighting device such as a head lamp of an automotive vehicle.
Inventors
- 👤 Naohiko Inoue
- 👤 Youichi Moori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/12; B; B60; B60S; B60S1/00; B60S1/02; B60S1/56; B60S1/60; B60S1/603; Y; Y10; Y10S; Y10S318/00; Y10S318/02; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
360 words
A combination of a double-motion drive mechanism and a wiper assembly for a lamp of a lighting device, in which said drive mechanism comprises a reversible motor having an output shaft rotatable in first and second directions depending upon the polarity of a current energizing the motor, a first gear rotatable with the output shaft of the motor, a second gear in mesh with the first gear, first power output means to be driven by said first gear for producing a power output in the form of a linear reciprocating motion, second power output means to be driven by said second gear for producing a power output in the form of a rotary motion, a first one-way clutch connected between said first gear and said first power output means for transmitting to the first power output means the rotation of the output shaft of the motor in said first direction, and a second one-way clutch connected between said second gear and said second power output means for transmitting to the second power output means the rotation of the output shaft of the motor in said second direction and in which said wiper assembly comprises a wiper arm pivotally movable over said lamp between an operative position having its leading end located substantially over a center of the lamp and an inoperative position away from the lamp, a blade carrying arm carrying thereon a wiper arm and connected at one end to said wiper arm and rotatable about said leading end of the wiper arm, a first flexible line connected at one end to said first power output means of the drive mechanism and at the other end to said wiper arm for moving the wiper arm between said operative and inoperative positions as said first power output means produces said linear reciprocating motion, and a second flexible line which is connEcted at one end to said second power output means of the drive mechanism and at the other end to said blade carrying arm for driving the blade carrying arm to rotate about said leading end of the wiper arm as said second power output means produce said rotary motion.
Claim 2
Dependent Claim
360 words
A combination of a double-motion drive mechanism and a wiper assembly for a lamp of a lighting device, in which said drive mechanism comprises a reversible motor having an output shaft rotatable in first and second directions depending upon the polarity of a current energizing the motor, a first gear rotatable with the output shaft of the motor, a second gear in mesh with the first gear, first power output means to be driven by said first gear for producing a power output in the form of a linear reciprocating motion, second power output means to be driven by said second gear for producing a power output in the form of a rotary motion, a first one-way clutch connected between said first gear and said first power output means for transmitting to the first power output means the rotation of the output shaft of the motor in said first direction, and a second one-way clutch connected between said second gear and said second power output means for transmitting to the second power output means the rotation of the output shaft of the motor in said second direction and in which said wiper assembly comprises a wiper arm pivotally movable over said lamp between an operative position having its leading end located substantially over a center of the lamp and an inoperative position away from the lamp, a blade carrying arm carrying thereon a wiper arm and connected at one end to said wiper arm and rotatable about said leading end of the wiper arm, a first flexible line connected at one end to said first power output means of the drive mechanism and at the other end to said wiper arm for moving the wiper arm between said operative and inoperative positions as said first power output means produces said linear reciprocating motion, and a second flexible line which is connEcted at one end to said second power output means of the drive mechanism and at the other end to said blade carrying arm for driving the blade carrying arm to rotate about said leading end of the wiper arm as said second power output means produce said rotary motion.
Claim 3
Dependent Claim
152 words
A combination as claimed in claim 1, in which said first power output means of the drive mechanism comprise a first shaft connected to said first gear through said first one-way clutch for being rotated about its axis when the output shaft of said motor is rotated in said first direction and translatory means driven by said first shaft for converting the rotational motion of the first shaft into said linear reciprocating motion and in which said second power output means of the drive mechanism comprise a second shaft connected to said second gear through said second one-way clutch for being rotated about its axis when the output shaft of the motor is rotated in said second direction, a third gear formed on said second shaft, and at least one fourth gear in mesh with said third gear for delivering said rotary motion when said second shaft is driven from said motor.
Claim 4
Dependent Claim
154 words
A combination as claimed in claim 2, in which said translatory means comprise a worm formed on said first shaft, a worm wheel which is in mesh with said worm, a pin fixed on one face of the worm wheel and radially spaced apart from an axis of rotation of the worm wheel for being rotated about said axis when the worm wheel is driven to rotate by said worm, and an elongated guide member which is movable in a direction parallel with a certain diametrical direction of the worm wheel and in which said pin on the worm wheel is received movably in a longitudinal direction of the guide member whereby the guide member is moved back and forth in said direction parallel to said certain diametrical direction of the worm wheel as the pin is rotated about said axis and moved back and forth in the longitudinal direction of the guide member.
Claim 5
Dependent Claim
30 words
A combination as claimed in claim 3, in which said guide member is connected to said first flexible line and said fourth gear is connected to said second flexible line.
Claim 6
Dependent Claim
41 words
A combination as claimed in claim 1, in which said drive mechanism further comprises first biasing means for urging said first one-way clutch into a coupled condition and second biasing means for urging said second one-way clutch into a coupled condition.
Claim 7
Dependent Claim
86 words
A combination as claimed in claim 5, in which said wiper assembly further comprises a worm shaft rotatable about its axis and connected to said second flexible line for being rotates about the axis thereof when the second flexible line is twisted about a longitudinal axis thereof, and a worm wheel in mesh with said worm shaft and connected to said blade carrying arm for driving the blade carrying arm to rotate about said leading end of the wiper arm when driven by said worm shaft.
Claim 8
Dependent Claim
226 words
A combination as claimed in claim 1, further comprising a control circuit which comprises a manually-operated switch for connecting the control circuit to a power source when closed, a center-position responsive switch to be closed responsive to positioning of said wiper arm in said operative position thereof, a stop-position responsive switch to be closed responsive to positioning of the wiper arm in said inoperative position thereof, polarity inverting means for energizing said reversible motor with a current of a first polarity responsive to closing of said manually-operated switch and with a current of a second polarity responsive to closing of said center-position responsive switch, the output shaft of the motor being rotated in said first direction when energized with the current having said first polarity and in said second direction when energized with the current having said second polarity, said motor being de-energized responsive to closing of said stop-position responsive switch, and timing means to be actuated responsive to the closing of said center-position responsive switch and Operative to produce an output at a predetermined time interval after the timing means are actuated for causing said polarity inverting means to energize said motor with the current having said first polarity so that the output shaft of the motor is rotated in said first direction at said predetermined time interval after said center-position responsive switch is closed.
Claim 9
Dependent Claim
36 words
A combination as claimed in claim 7, in which said control circuit further comprises a self-holding circuit for maintaining the control circuit energized when said manually-operated switch is open and said stop-position responsive switch is closed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |