US3849641A - Lamp housing assembly - Google Patents
Lamp housing assembly Download PDFInfo
- Publication number
- US3849641A US3849641A US00170800A US17080071A US3849641A US 3849641 A US3849641 A US 3849641A US 00170800 A US00170800 A US 00170800A US 17080071 A US17080071 A US 17080071A US 3849641 A US3849641 A US 3849641A
- Authority
- US
- United States
- Prior art keywords
- body parts
- lens part
- housing
- latch means
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
- B60Q3/14—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting through the surface to be illuminated
Definitions
- An electric lamp housing comprising a tubular body having a lens part at one end and being divided longitudinally of the body into two body parts, the body parts having latch means for securing them tighter in assembled relationship to form the body and being identical, the lens part having an opening for receiving end portions of thebody parts and being detachably securable thereto to assist the latch means in retaining the body parts in their assembled relationship.
- an electric lamp housing comprises a tubular body having a lens part at one end and being divided longitudinally of the body into two body parts, the body parts having latch means for securing them together in assembled relationship to form the body and being identical, the lens part having an opening for receiving end portions of the body parts and being detachably securable thereto to assist the latch means in retaining the body parts in their assembled relationship.
- FIG. 1 is a perspective view of an electric lamp and housing assembly
- FIG. 2 is a perspective view of one of two body parts of the housing with an electric lamp bulb, a resistor, and electrical terminals mounted therein;
- FIG. 3 is an exploded perspective view of one end of the housing
- FIG. 4 is a plan view of the other body part of the housing
- FIG. 5 is a side elevation of the part shown in FIG.
- FIG. 6 is an end elevation of the part shown in FIGS. 4 and 5;
- FIG. 7 is a section taken on the line VII-VII in FIG. 4.
- FIGS. 8a and 8b illustrate two forms of aperture in a panel in which the assembly can be mounted.
- a lamp housing of electrically insulating material comprises two identical moulded housing body parts 2 and a lens part 3 secured to one end of the housing body. At the other end of the body are two electrical tab terminals 4 which are best seen in FIG. 2.
- the body parts 2 of the housing 1 are secured together by means of the lens part 3, and by latch means in the form of a head 5a of a resilient arm 5 (best seen in FIGS. 2, 5, 6 and 7) of each body part 2 which engages in a slot 6 of the other body part 2.
- Each body part 2 has two resilient, substantially rectangular wings 7 or stop members which extend substantially parallel to another and in the same direction from diametrically opposed positions on the upper (as seen in FIG. 1) portion of the body part 2 which portion is of circular cross-section and tangentially of which the wings 7 extend.
- one of the parts 2 contains an electric lamp bulb 8 and a resistor 9.
- Each terminal 4 is U-shaped and has a tab portion 4a for mating with an electrical receptacle (not shown) on an electrical supply lead (not shown), a bight portion 4b positioned in a slot defined by the parts 2 to locate the terminal in the housing and a ferrule portion 4c.
- One of the portions 4c is crimped to one lead of the bulb 8, the other portion 4c being connected to one lead of the resistor 9, the other lead of the bulb 8 and of resistor 9 being directly connected together, e.g. by soldering or by a crimping ferrule (not shown).
- the resistor 9 is thus connected in series with the bulb 8.
- a base portion 2' of each body part 2 is formed with two rectangular projections 10 which engage in complementary holes 11 in the base portion of the other body part 2 when the body parts are assembled, relatively to locate the two body parts, with the assistance of a longitudinal rib 12 on a side wall of each body part 2 which engages in a complementary groove 13 in the opposite side wall of the other body part 2.
- the relative location of the body part 2 is further assisted by the engagement of projections 10 in the holes 11' at the opposite end of the body to the projections 10 and holes 11.
- the resistor 9 is held in position in the housing between two longitudinal ribs 14, one extending from each base portion 2' and a transverse rib 15 of each body part 2, the ribs 15 serving to grip between their ends the leads of the bulb 8.
- each body part 2 remote from the base portion 2 is formed with two diametrically opposed lugs 16, each of the lugs 16 of one body part lying adjacent to one of the lugs 16 of the other body part in the assembled condition of the two body parts 2, as will be apparent from FIG. 3, so that each pair of adjacent lugs 16 forms a circumferential boss 17.
- the lens part 3 (which is preferably moulded from polystyrene, acrylate or a cellulose derivative) is formed with two internal recesses 18 which co-operate with the bosses 17 to provide a snap action joint for securing the lens part 3 to the housing body and for securing the body parts 2 together in assembled relationship in co-operation with the arms 5 and slots 6.
- the appropriate leads of the bulb 8 and resistor 9 are connected together and their remaining leads are connected to the portions 40 of the terminals 4.
- the bulb 8, resistor 9 and terminals 4 are then positioned in one of the body parts 2, as shown in FIG. 2, and the other body part 2 is then mated with the one body part and secured thereto by engagement of the heads 5a of the arm 5 in the slots 6.
- the recesses 18 of the lens part 3 and the bosses 17 are then engaged with a snap action to complete the assembly.
- the assembly shown in FIG. 1 can be mounted on a panel, e.g. an automobile dash panel, either from the front of the panel in a circular hole as shown in FIG. 8a, or from behind the panel in a hole with recesses 20, as shown in FIG. 8b.
- a panel e.g. an automobile dash panel
- the complete assembly with lens part 3 in position is pushed through the circular hole (FIG. 8a) which has a diameter which is slightly less than the external diameter of the lens part 3, with the base portion 2' leading.
- the wings 7 are deflected inwardly by engagement with the edge of the hole until they have passed through the hole, whereupon the wings resume their normal shape by reason of their own resilience.
- Axial movement of the assembly relative to the panel is limited on the one hand by the engagement of the lens part 3 with the front of the panel, and on the other hand by the engagement of the forward edges 19 (FIG. 1) of the wings 7 with the rear surface of the panel.
- the lens part 3 For mounting the assembly from behind the panel the lens part 3 is removed and the torward end of the assembly passed through a hole, as shown in FIG. 8b, in the panel, the recesses 20 of the hole receiving the bosses 17 of the assembly. The lens part 3 is then snapped into position so that the panel is gripped between the lens part 3 and the forward edges 19 of the wings 7.
- the outer peripheral shape of the lens part 3 may be other than circular as described above, being for example square.
- the resistor 9 may not be required, in which case the leads of the bulb 8 can be directly connected to the terminals 4.
- the terminals 4 may be dispensed with, and supply leads directly connected to the leads of the bulb 8, or to the bulb 8 and the resistor 9, if the resistor is included in the assembly.
- the housing including the lens part 3 can be produced by the use of only two moulding dies, for example injection moulding dies.
- An electrical lamp housing comprising a tubular body having a lens part at one end and being divided longitudinally of the body into two body parts, the body parts having latch means for securing them together in assembled relationship to form the body and being identical, the latch means comprising an elongated arm and slot on each body part for cooperating with a corresponding slot and arm respectively on the other body part, the lens part having at least one opening for receiving end portions of the body parts and being detachably securable thereto to assist the latch means in retaining the body parts in their assembled relationship.
- a housing according to claim 1 in which said end portions of the body parts have lugs which co-operate in the assembled condition of the body parts to provide peripherally extending bosses for engagement in the openings in the lens part, with a snap action.
- a housing according to claim 1 in which the lens part co-operates with resilient stop members projecting from the body portions to retain the housing in a hole in a support for the housing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Organic Insulating Materials (AREA)
- Insulating Bodies (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES1970161829U ES161829Y (es) | 1970-09-24 | 1970-09-24 | Un conjunto de lampara electrica. |
Publications (1)
Publication Number | Publication Date |
---|---|
US3849641A true US3849641A (en) | 1974-11-19 |
Family
ID=8339479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00170800A Expired - Lifetime US3849641A (en) | 1970-09-24 | 1971-08-11 | Lamp housing assembly |
Country Status (8)
Country | Link |
---|---|
US (1) | US3849641A (it) |
AU (1) | AU3256371A (it) |
BE (1) | BE772994A (it) |
BR (1) | BR7106286D0 (it) |
DE (1) | DE7134893U (it) |
ES (1) | ES161829Y (it) |
FR (1) | FR2108488A5 (it) |
GB (1) | GB1301599A (it) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4086483A (en) * | 1976-12-09 | 1978-04-25 | Freund Precision, Inc. | Device for installing within a panel opening for supporting an electrical component or the like |
US4473870A (en) * | 1983-04-15 | 1984-09-25 | Carlingswitch, Inc. | Lamp housing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU619259B2 (en) * | 1988-03-10 | 1992-01-23 | Peter Owen Dormand | Vandal resistant bollard light |
-
1970
- 1970-09-24 ES ES1970161829U patent/ES161829Y/es not_active Expired
-
1971
- 1971-08-11 US US00170800A patent/US3849641A/en not_active Expired - Lifetime
- 1971-08-19 AU AU32563/71A patent/AU3256371A/en not_active Expired
- 1971-08-24 GB GB1301599D patent/GB1301599A/en not_active Expired
- 1971-09-14 DE DE7134893U patent/DE7134893U/de not_active Expired
- 1971-09-23 BR BR6286/71A patent/BR7106286D0/pt unknown
- 1971-09-23 BE BE772994A patent/BE772994A/xx unknown
- 1971-09-23 FR FR7134325A patent/FR2108488A5/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4086483A (en) * | 1976-12-09 | 1978-04-25 | Freund Precision, Inc. | Device for installing within a panel opening for supporting an electrical component or the like |
US4473870A (en) * | 1983-04-15 | 1984-09-25 | Carlingswitch, Inc. | Lamp housing |
Also Published As
Publication number | Publication date |
---|---|
AU3256371A (en) | 1973-02-22 |
ES161829Y (es) | 1971-06-16 |
GB1301599A (it) | 1972-12-29 |
FR2108488A5 (it) | 1972-05-19 |
ES161829U (es) | 1970-12-16 |
BE772994A (fr) | 1972-03-23 |
DE7134893U (de) | 1971-12-16 |
BR7106286D0 (pt) | 1973-04-10 |
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