Patent US4936671A successfully refreshed from Google Patents.
US4936671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outside rear-view mirror for a motor vehicle having a reverse gear
Assignee: Hohe KG
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Filing: 1989-06-09
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Granted: 1990-06-26
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Expires: 2009-06-09
Abstract
Abstract Disclosed is an outside rear-view mirror for a motor vehicle having a reverse gear. The outside rear-view mirror comprises a mirror housing adapted for being mounted to a body of the vehicle. A mirror glass is held by the mirror housing and a drive motor is provided for tilting the mirror glass about at least one axis with respect to the vehicle. The mirror is coupled to the drive motor through a link. A current supply circuit for the drive motor is provided and includes a reverse switch for reverting the direction of rotation of a rotor of the drive motor. A control member for switching the reverse gear is coupled to the reverse switch and to a preset displacement restricting device for restricting a rotation of the link. The displacement restricting device may be controlled electro-mechanically or may be formed electronically. Thereby, an inexpensive parking aid is presented to the driver which allows a view on the rearward portions of the car as an aid for rearwardly maneuvering the car into a parking space.
Inventors
- 👤 Rudolf Kaspar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:13
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/025; B60R1/06; B60R1/062; B60R1/07; B60R1/072; G; G05; G05B; G05B2219/00; G05B2219/30; G05B2219/34; G05B2219/34215; G05B2219/36; G05B2219/36463; G05B2219/37; G05B2219/37169; G05B2219/37171; G05B2219/45; G05B2219/45185
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
99 words
Outside rear-view mirror for a motor vehicle having a reverse gear comprising a mirror housing mounted to the vehicle and holding a mirror glass, the mirror glass adapted to be adjusted about an axis and being coupled to a drive motor through a link, a current supply circuit being provided for the drive motor which includes a reverse switch for reverting the rotational direction of a rotor of the motor, wherein a control element for switching the reverse gear is coupled to the reverse switch and to a preset displacement restricting device for limiting a rotation of the link.
Claim 2
Dependent Claim
99 words
Outside rear-view mirror for a motor vehicle having a reverse gear comprising a mirror housing mounted to the vehicle and holding a mirror glass, the mirror glass adapted to be adjusted about an axis and being coupled to a drive motor through a link, a current supply circuit being provided for the drive motor which includes a reverse switch for reverting the rotational direction of a rotor of the motor, wherein a control element for switching the reverse gear is coupled to the reverse switch and to a preset displacement restricting device for limiting a rotation of the link.
Claim 3
Dependent Claim
29 words
Outside rear-view mirror according to claim 1 wherein the displacement restricting device includes an electro-magnetic clutch adapted to be activated by the control member and having two coupling members.
Claim 4
Dependent Claim
33 words
Outside rear-view mirror according to claim 2 wherein one of the coupling members is provided with an axially extending nose engaging a recess of the other coupling member when the clutch is activated.
Claim 5
Dependent Claim
12 words
Outside rear-view mirror according to claim 3 wherein the recess is curved.
Claim 6
Dependent Claim
43 words
Outside rear-view mirror according to claim 3 wherein a trip-coil magnet is provided having an armature for locking a coupling member from rotation when the trip-coil magnet is activated which coupling member follows a rotation of link when the trip-coil magnet is deactivated.
Claim 7
Dependent Claim
43 words
Outside rear-view mirror according to claim 2 wherein a trip-coil magnet is provided having an armature for locking a coupling member from rotation when the trip-coil magnet is activated which coupling member follows a rotation of link when the trip-coil magnet is deactivated.
Claim 8
Dependent Claim
47 words
Outside rear-view mirror according to claim 2 wherein a first plate-like coupling member is mounted resiliently to the link and is provided with a profiled ring such as a peripheral gear into which a counter profile of a stop element may engage when the clutch is activated.
Claim 9
Dependent Claim
18 words
Outside rear-view mirror according to claim 1 wherein the link is a drive shaft of the drive motor.
Claim 10
Dependent Claim
28 words
Outside rear-view mirror according to claim 1 wherein the link is part of a reduction gear which is coupled to the drive motor and to the mirror glass.
Claim 11
Dependent Claim
50 words
Outside rear-view mirror according to claim 1 wherein voltage-peaks generated by a commutator of the direct current drive motor are shaped to impulses which are counted by a counter which when arriving at a preset maximum reading produces an inhibit signal for inhibiting further supply of current to the motor.
Claim 12
Dependent Claim
39 words
Outside rear-view mirror according to claim 10 wherein an A.C. resistance network is coupled into current supply lines for the motor and wherein the voltage-peaks are taken over from a line connecting the A.C. resistance network and the commutator.
Claim 13
Dependent Claim
24 words
Outside rear-view mirror according to claim 11 wherein voltage-peaks generated in the reverse switch when switching are fed to the counter as reset pulses.
Claim 14
Dependent Claim
24 words
Outside rear-view mirror according to claim 10 wherein voltage-peaks generated in the reverse switch when switching are fed to the counter as reset pulses.
Claim 15
Dependent Claim
45 words
Outside rear-view mirror according to claim 10 wherein the maximum reading is selected such that the link may rotate for tilting the mirror glass from a position adjusted to normal forward drive of the car to a position forming a parking aid and vice versa.
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) | 1993-06-25 | 1993-12-25 | 1994-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-25 | 1997-12-25 | 1998-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-25 | 2001-12-25 | 2002-06-26 | $7700.00 | Window Closed / Lapsed |