US3688103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle headlight
Assignee: Robert Bosch GmbH
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Filing: 1970-11-24
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Granted: 1972-08-29
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Expires: 1990-11-24
Abstract
Abstract In a vehicle headlight housing has an open side and an opposite closed side, and in the open side is received a replaceable lighting unit comprising a reflector having a light-emitting opening, a bulb-socket mounted on the reflector, a light bulb in the socket, and a protective lens extending across and closing the opening of the reflector. Releasable securing means is provided for releasably securing the lighting unit to the housing and comprises abutment means fast with the reflector externally thereof and spring means on the housing movable between an inoperative position and an operative position in which latter it lockingly engages the abutment means, with actuating means being provided for moving the spring means to its operative position.
Inventors
- 👤 Hans Daumuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:19
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/0064; B60Q1/007; F; F21; F21S; F21S41/00; F21S41/10; F21S41/19; F21S41/196
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
155 words
A headlight for motor vehicles and the like, comprising a housing having an open side and an opposite closed side; a replaceable lighting unit insertable into said open side and comprising a reflector having a light-emitting opening, a bulbsocket mounted on said reflector, a light bulb in said socket, and a protective lens extending across and closing said opening; and releasable securing means for releasably securing said lighting unit to said housing, said securing means including abutment means fast with said reflector externally thereof, spring means provided on said housing and being movable between an inoperative position in which it is disengaged from and an operative position in which it is lockingly engaged with said abutment means, and actuating means cooperating with said spring means and turnably mounted on said housing accessible at said closed side and turnable to and from an actuating position in which it urgEs said spring means to said operative position.
Claim 2
Dependent Claim
155 words
A headlight for motor vehicles and the like, comprising a housing having an open side and an opposite closed side; a replaceable lighting unit insertable into said open side and comprising a reflector having a light-emitting opening, a bulbsocket mounted on said reflector, a light bulb in said socket, and a protective lens extending across and closing said opening; and releasable securing means for releasably securing said lighting unit to said housing, said securing means including abutment means fast with said reflector externally thereof, spring means provided on said housing and being movable between an inoperative position in which it is disengaged from and an operative position in which it is lockingly engaged with said abutment means, and actuating means cooperating with said spring means and turnably mounted on said housing accessible at said closed side and turnable to and from an actuating position in which it urgEs said spring means to said operative position.
Claim 3
Dependent Claim
47 words
A headlight as defined in claim 1, said housing having an aperture at said closed side; and further comprising cooperating abutment faces on said actuating means and bounding the edges of said aperture for limiting the angular displacement of said actuating means during turning of the same.
Claim 4
Dependent Claim
49 words
A headlight as defined in claim 2, said actuating means comprising a first portion located exteriorly of said housing and aperture, and a substantially cylindrical second portion rigid with said first portion and having a pair of diametrally opposite flat facets constituting said abutment faces on said actuating means.
Claim 5
Dependent Claim
26 words
A headlight as defined in claim 3, said spring means comprising at least one spring element within said housing rigid and turnable with said second portion.
Claim 6
Dependent Claim
31 words
A headlight as defined in claim 4, said spring element comprising at least one elongated leaf spring having opposite end portions which project outwardly beyond the periphery of said second portion.
Claim 7
Dependent Claim
25 words
A headlight as defined in claim 5, at least said end portions being slightly bowed in direction transversely to the elongation of said leaf spring.
Claim 8
Dependent Claim
40 words
A headlight as defined in claim 5, said housing having an inner surface at said closed side, and wherein at least said end portions of said leaf spring are inwardly spaced from and out of contact with said inner surface.
Claim 9
Dependent Claim
44 words
A headlight as defined in claim 1, said reflector having an additional opening opposite said light-emitting opening, and said socket being lodged in said additional opening; and wherein said abutment means is located in the marginal zone of said reflector bounding said additional opening.
Claim 10
Dependent Claim
28 words
A headlight as defined in claim 8; further comprising rivet means connecting said socket with said reflector; and wherein said abutment means is unitary with said socket means.
Claim 11
Dependent Claim
85 words
A headlight as defined in claim 9, said abutment means comprising a plurality of lugs projecting from said socket and each provided with a cut-out including a first portion bounded by an inclined elongated edge and a second portion communicating with said first portion; and wherein said spring means comprises a corresponding plurality of projecting end portions each slidable over an associated elongated edge, and receivable with a snap action in the respective second portion, upon turning of said actuating means to said actuating position.
Claim 12
Dependent Claim
51 words
A headlight as defined in claim 1, said abutment means being electrically conductively connected with said socket; and wherein said spring means and actuating means consist at least in part of electrically conductive material for conductively connecting said socket and said housing when said actuating means is in said actuating position.
Claim 13
Dependent Claim
30 words
A headlight as defined in claim 1; further comprising keying means for preventing securing of said unit to said housing in other-than-predetermined positions of the same relative to one another.
Claim 14
Dependent Claim
19 words
A headlight as defined in claim 12, said keying means being provided on one of said unit and housing.
Claim 15
Dependent Claim
19 words
A headlight as defined in claim 12, said keying means being provided on said unit and on said housing.
Claim 16
Dependent Claim
65 words
A headlight as defined in claim 12, said keying means comprising an angle member having one arm fast with said housing and an other arm projecting within said housing toward said open side thereof, and at least one recess in said reflector arranged to at least in part receive said other arm when said reflector and housing are in predetermined position relative to one another.
Claim 17
Dependent Claim
43 words
A headlight as defined in claim 1, said housing having at said closed side a predetermined external contour; and wherein said actuating means comprises an outer body portion provided exteriorly of said closed side and having a configuration complementary to said external contour.
Claim 18
Dependent Claim
49 words
A headlight as defined in claim 16, said housing having at said closed side an external flat facet deviAting from said external contour, and wherein said actuating means comprises an outer body portion overlying said flat facet and having an outline which at least approximately follows said external contour.
Claim 19
Dependent Claim
36 words
A headlight as defined in claim 1; and further comprising engaging portions on said actuating means for enabling engaging and turning of the latter to and from said actuating position with the help of a tool.
Claim 20
Dependent Claim
148 words
A headlight for motor vehicles and the like, comprising a housing having an open side and an opposite closed side; a replaceable lighting unit insertable into said open side and comprising a reflector having a light-emitting opening, a bulb-socket mounted on said reflector, a light bulb in said socket, and a protective lens extending across and closing said opening; and releasable securing means for releasably securing said lighting unit to said housing, said securing means including abutment means fast with said reflector externally thereof, spring means including at least one leaf spring on said housing and movable between an inoperative position and an operative position lockingly engaging said abutment means, and actuating means cooperating with said spring means and turnably mounted on said housing accessible at said closed side and turnable to and from an actuating position in which it urges said spring means to said operative position.
Claim 21
Dependent Claim
148 words
A headlight for motor vehicles and the like, comprising a housing having an open side and an opposite closed side; a replaceable lighting unit insertable into said open side and comprising a reflector having a light-emitting opening, a bulb-socket mounted on said reflector, a light bulb in said socket, and a protective lens extending across and closing said opening; and releasable securing means for releasably securing said lighting unit to said housing, said securing means including abutment means fast with said reflector externally thereof, spring means including at least one leaf spring on said housing and movable between an inoperative position and an operative position lockingly engaging said abutment means, and actuating means cooperating with said spring means and turnably mounted on said housing accessible at said closed side and turnable to and from an actuating position in which it urges said spring means to said operative position.
Claim 22
Dependent Claim
145 words
A headlight for motor vehicles and the like, comprising a housing having an open side and an opposite closed side; a replaceable lighting unit insertable into said open side and comprising a reflector having a light-emitting opening, a bulb-socket mounted on said reflector, a light bulb in said socket, and a protective lens extending across and closing said opening; and releasable securing means for releasably securing said lighting unit to said housing, said securing means including abutment means fast with said reflector externally thereof, spring means on said housing and movable between an inoperative position and an operative position lockingly engaging said abutment means, and actuating means fast with and carrying said spring means and being turnably mounted on said housing accessible at said closed side and turnable to and from an actuating position in which it urges said spring means to said operative position.
Claim 23
Dependent Claim
145 words
A headlight for motor vehicles and the like, comprising a housing having an open side and an opposite closed side; a replaceable lighting unit insertable into said open side and comprising a reflector having a light-emitting opening, a bulb-socket mounted on said reflector, a light bulb in said socket, and a protective lens extending across and closing said opening; and releasable securing means for releasably securing said lighting unit to said housing, said securing means including abutment means fast with said reflector externally thereof, spring means on said housing and movable between an inoperative position and an operative position lockingly engaging said abutment means, and actuating means fast with and carrying said spring means and being turnably mounted on said housing accessible at said closed side and turnable to and from an actuating position in which it urges said spring means to said operative position.
Claim 24
Dependent Claim
48 words
A headlight as defined in claim 20, said actuating means comprising a main portion of electrically insulating material, and at least one contact of electrically conductive material carried by said main portion in biased sliding engagement with said housing and adapted for electrically conductive contact with said socket.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |