GB2412794A - Automotive interior lamp holder with integral cover for terminal - Google Patents
Automotive interior lamp holder with integral cover for terminal Download PDFInfo
- Publication number
- GB2412794A GB2412794A GB0512669A GB0512669A GB2412794A GB 2412794 A GB2412794 A GB 2412794A GB 0512669 A GB0512669 A GB 0512669A GB 0512669 A GB0512669 A GB 0512669A GB 2412794 A GB2412794 A GB 2412794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base member
- cap
- lamp
- bus bar
- holder
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
- H01R43/24—Assembling by moulding on contact members
-
- 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
- B60Q3/50—Mounting arrangements
- B60Q3/51—Mounting arrangements for mounting lighting devices onto vehicle interior, e.g. onto ceiling or floor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
An automotive interior lamp includes a bus-bar 11 moulded into a synthetic resin base 22: the frame is formed with a terminal 11d of a lampholder and a cap 22d is formed integrally with the base 22 during moulding. The cap 22d may engage the base 22 to cover the terminal 11d by pivoting about an integral film hinge 22d1. Similar integral caps (1b) may cover exposed remnants (2f2) of removed bridges of moulded-in busbars by like engagement of the base (figures 3(a) to 3(d), not shown).
Description
24 12794
AUTOMOTIVE ROOM LAMP WITH COVER MEANS FOR INSULATED
PORTIONS THEREOF
The present invention relates to an automotive lamp with cover means for ir-sulated portions thereof to be att-.acI-red to the automobile roof panel made of a metal plate by way of a trim secured to the inner side thereof by fastening by screws, in which the automotive room lamp Ills plus side and minus side bus bars forming a lighting 1() circuit such that said lighting circuit is not short circuit.
The conventional automotive room lamp is disclosed in Japanese Patent Application No. 2001-179774, in which the invention relates to an automotive lighting system and a method of producing the same. The automotive lighting system disclosed therein is characterized in that a plurality of bus bars having bridge portions are set in an integral form within a injection mold and said bridge portions are cut and bent up to form erect portions 2() for holding tile automotive lamp before resin is injected into tic mold.
Another type of automotive room lamp is disclosed tin Japanese Patent Application No. 2001-180372, in which the automotive room lamp disclosed therein is characterized in being composed of a one piece bus bar having terminals for connecting the switches and the power source therein, a holder to hold the lamp, said one piece bus bar having bridges for connecting lighting circuits; and a synthetic resin base member formed with 3() apertures at positions corresponding to said bridges in said bus bars set in a positioned manner such that said bridges are cut in said apertures after said bus bars are set in the base member.
It is to be noted in this connection that bridges are cut and bent up to separate the bus bar into the plus fine end the minusline and that wlrerlthe injection molded base member is fastened to the metal roof panel, tapping screws are used to cause metal chips to be produced. Such metal chips can fall onto the cut and bent up portions of bridges to cause short circuiting between the plus line and the minus line with the result that not only lighting of the lamp is impossible but fuse breaking or lamp breakdown takes place.
Further, the latter automotive lamp system has a problem that the holder for connecting the lamp to the bus bar sticks upward from the base member to the roof panel side to cause the holder to press upwardly from the lens side to the roof panel side, then causing short circuiting and fuse breaking because the body side 2() including the roof panel is grounded.
The present invention is aimed at solving the above identified problem and provide an automotive room lamp with cover means for an insulated portion thereof characterized in that the cut and bent up portion is to tee covered by a cap integrallyformedbyinjectionmoldirlg, the thus integrally formed cap by injection molding is to cover- the top of the plus side lamp holder such that the aperture positioned at the cut off end bent up portion is to be closed, or the top of said lamp holder is to 3() be closed such that the plus side bus bar or holder is prevented from being connected to the minus side.
The automotive room lame; with cover means for an insul ated portion thereof essentially comprises, in one a.c;pect, a base member made of synthetic resin, said base Or, member having at l east one insulation cap integrally formed at the time of insulation molding thereof i and a lace curtain attached to said base rmernber, said lace curtain having at least one bridge cut and bent up to separate said lace curtain into a plus side section and 1() a minus side section, said cut and bent up bridge defining at least one gap therebetween, said at least one i nsulation cap in the base member bet ng adapted to be brought into engagement with said gap.
It is further desirable that the base member is lore formed with thin portions across which said at least one cap is folded over to be engaged with said at least one gap.
It is still further desirable that said at least one cap includes a cylindrical pole standing upright from said base member.
It is still further desirable that said cap further includes a coneshaped portion on top of said cylindrical pole such that said cylindrical pole intervenes betwee said base member and said cone-shaped portion in the form 9!) of a constricted portion.
Ire another aspect of the invention, the automotive room lamp with cover means for i nsu] ated portion thereof essentially comprises a base member made of synthetic resin, said base member having at least one insul.atior :() cap integrally IQrmed at the time of insulation molding thereof; and a lace curtain attached to said base member, said lace curtain having at least one bridge cut and bent up to separate said lace curtain into a plus side section and a minus side section, said cut and bent up bridgc r) defining aL least one gap therebetween, said base member having at least one small aperture at a position corresponding to said at least one bridge of said lace curtain, said at least one insulation cap in the base member being adapted to be brought into engagement with 1() said at least one small aperture, said at least one cap having a shape complimentary to said aperture.
It is desirable that said aperture is of a circular shape while said cap is of a disk shape.
It is further desirable that said cap is connected to said base member by way of said thin portion and folded over across said thin portion to be brought into engagement with said aperture.
Ina further aspect of the invention, the automotive room lamp with cover means for insulated portion thereof comprises a base member made of synthetic resin, a holder for holding a plus side lamp terminal integrally formed in said bus bar accessibly from outside; and a cap integrally formed in said base member at the time of injection molding to cover said holder.
It is desirable that said base member is formed with at least one thin portion which said cap is folded over across said thin portion to cover said holder.
It is further desirable that said cap is integrally formed with a lock mechanism composed of a lock piece :3() and a lock, said lock piece being integrally formed in a) said base member.
By way of example only, the aspects of the invention will now be described in greater detail with reference to the accompanying drawings of which: Or' Fig. 1 is a perspective view of the first embodiment of the invention; Fig. 2 is a perspective view of a bus bar or a lace curtain embedded by injection molding; Fig. 3 (a) shows in cross section a bridge portion of the bus bar before being closed by the cap while Fig. 3(b) shows in cross section said bridge portion being closed by the cap; Eig. 3(c) is a cross section of the second embodiment in which the top of a bridge portion is shown before being closed by a disk shaped cap while Fig. (d) is a cross section of the same in which the top of the bridge portion is closed by the disk shaped cap; Fig. 4 is a plan view of the second embodiment; Fig. 5 is a perspective view of the main portion of the room lamp before the holder is covered by the cap; and Fig. 6 is a perspective view of the main portion of the room lamp when the holder is covered by the cap.
Hereinafter, embodiments of the cover means for insulated portion in automotive room lamps according to the present invention will be explained with reference to the attached drawings.
Figs. 1 to 3(a) and 3(b) show the first embodiment of the invention, in which the numeral 1 denotes a base member embedded in Scolding formed by injection molding aswillbe explained in detail hereinafter. The numeral 2 denotes an integral bus bar or a lace curtain punched out by press working, said integral bus bar having a plurality of bridges 2f, switch terminal 2a and 2b Lo be connected to push switches accessible from outside to be turned on and off, erect tabs 2c and 2d to hold clamp, end Lerminals2eto tee connected Lo a power source, door switches or the like.
Itis to tee noted in this connection that each bridge 2f is made narrow and formed with a groove 2f: in mid portions thereof to have a reduced thickness such that cutting and bending upright the bridge is easily done even with a limited force by means of a jig (see Fig. 1) . Then, said bus bar 2 is embedded in synthetic resin et the time ofinjection molding by setting or positioning said bus bar 2 within the mold, cutting and bending the bridge up to form a cut-and-bent up portion 2f2 by means of a jig, and injecting synthetic resin into the mold to bury the bus bar 2 therein with said base member being formed with small apertures la at portions corresponding to said cut-and-bent-up portions 2f2. Thus, the bus bar is divided into a plus side bus bar and a minus side bus bar through the small apertures la such that a circuit net for lighting the lamp is formed.
Further, upon embedding the bus bar 2 in synthetic resin by injection molding, the base member has a thin portion lb and, near each bridge 2f, said base member is formed with a disk lb2 across said thin portion and sized to snugly fit within said small apertures la while a cone-shaped cap lb is integrally formed at said disk lb2 independently therearound, said cone-shaped cap lb having a constricted portion lb which is to be locked with said cut-and-bent- up portion 2f2.
r' It is to be noted in this connection that said base member 1 has a top on which a pair of lenses as disclosed in Japanese Patent Application Laid Open to Public No. 2001-179774 is pivoted such that said lenses are, when pivoted, adapted to actuate push switches connected to ]0 tile switch terminals 2a and 2b.
In the thus constructed automotive room lamp in the present invention, the second embodiment is shown in Figs 3(c) and 3(d) in which said thin portion lb: is folded over such that the disk lb is pressed snugly into the small hole la to close the same before said room lamp is fastened to the roof panel by screws. Therefore, even if metal chips produced from the roof panel at the time of fastening said base 1 to the roof panel by tap screws fall from the roof panel, the cap lb closes the small hole la such that the plus side bus bar and the minus side bus bar are not short circuited.
Next, the third embodiment of the invention will be explained with reference to Figs. 4 to 6.
In this embodiment, there is provided a bus bar 11 2.r> composed of a ground terminal lla, terminals llb for c:onrlectors connected to a power source (battery) or a door swit-ch, fixed terminals Tic constituting a slide Twit ch and a holder lid to retain a fuse lamp.
There are provided a plurality of bridges lie between the respective bus bars 11. For reference, a conventional bus bar assembly is composed of four bus bars but not connected to each other by such bridges lie as in the present invention. It is to be noted in this connection that each bridges lie has a constricted 5;oortion of a narrow width and is centrally formed with a cut such that a cut-and-bend-up operation is capable at the time of press working.
The numeral22 denotes a synthetic resinhase member formed by injection molding and having grooves 22a therein to receive said bus bars ll. With the bus bars received in said grooves 22a, there are formed a number of small apertures 22b corresponding to the number of said bridges to receive erect portions when cut and bent up, said small apertures lie being positioned to face said bridges. It is to be noted in this connection that the numeral 22c denotes an accommodation portion to receive a movable contact member which moves on said fixed terminal.
Further, said base member 22 is integrally formed with a cap 22d to cover the top of the holder lid on the plus side; that is, with a thin portion22dl therebetween.
A lock 22dis integrally formed to be engaged with a lock piece 22e on the other side of said holder 1ld.
Next, a method of incorporating the bus ball into the base member 22 will be explained.
First, the integral bus bar is fitted into the groove 22a in the base member 22. With this arrangement, the bridges 1le of the bus bar ll are secured at positions opposite the small apertures 22b in the base member 22.
With said bus bar ll being incorporated in the base member 22, the bus bar 11 will not constitute a circuit.
In the next step said bridges lie are electrically separated; that is, pins are secured in a press at positions opposite tie center of said bridges lie. Then, said pins are pressed down toward the bridge portion lie such that the r-arrow portion centrally formed i n the bridge lie i s separated at a cuL line to be electrically made independent.
Therl, the bus bars are removed from the press to be found forming a circuit wi th the bridge lie being separated. Then, a slide switch is incorporated thereinto and connectors are connected to the terminals such that the lamp is ready to be lit.
Wi th the thus constructed automotive room lamp, the base member 22 is attached to the roof panel after the cap 22d is folded over across the thin potion 22d: to cover the top of the p] us side holed lid until the lock piece 22d2 is brought into engagement with the lock piece 22e to secure them. In this way, even if the slide switch 2() is required to be pressed against the roof panel with a risk of the plus side holder lid being brought into engagement with the roof panel, the resin cap 22d covering the holder l]d prevents the holder lid from shortcuLting by way of the minus side roof.
Further, the base member] orated close to the small apertures 22b through which the erect portions cut and bent up from the bridge portions] le are received may be formed with caps similar to those in the first embodiment though not shown such that said caps are caused to cover and brought into engagement with the small aperture 22b, thus preventing the plus side bus bar and the minus side bus bar from short circuiting because metal <-hips produced when the base member 22 is attached by fastening to the roof panel with screws.
It is to be noted in this connection that although the cap lb to cover the small apertures la and 22b are provided in the form of cones in the previous embodiment, the shape o:L the cap 1a is not limited to the cone shape but, for example, a cylindrical pole standing upright 1() from too base member or a disk shaped member lb to be engage in the small aperture la or 22b are acceptable so long as said small holes la or 22b are closed.
In accordance with the present invention, wherein the cap integrally formed in the base member is brought ]5 into engagement with the plus side section and the minus side section into which the erect portion for separating the bus bar attached to the resin base member are engaged, there is no likelihood of metal chips produced when tap screws are screwed in for fastening the base member to the roof panel, thus preventing the plus side and the minus side of the bus bar from short circuiting.
Further, since the exposed portion of the lamp retainer on the plus side integrally formed with the bus bar while mair-taining an exposed state thereof is made to be covered by a cap integrally formed at the time of molding of the base member, there is an effect that there is no likelihood of a short circuiting of the retainer in contact with the roof parcel.
Further aspects and features of the invention will now be desc.ribed in the following paragraphs: 1. An automotive room lamp with cover means for insulated portions "hereof, comprising abasemembermade of a synthetic resin, said base member having at least one insulation cap integrally formed at the time of insulation molding thereof; and a lace curtain attached to said base member, said lace curtain having at least one bridge cut and bent up to separate said lace curtain into a plus side section and a minus side section, said cut and bent up bridge defining at least one gap therebetween, said at least one insulation cap in the base member being adapted to close an associated gap.
2. A lamp as set forth in paragraph 1, wherein saidbasememberis formed with thin portions across which said at least one cap is folded over to close said at least one gap.
3. A lamp as set forth in paragraph 1 or paragraph 2, wherein the at least one insulation cap in the base member extends into the associated gap.
4. A lamp as set forth in paragraph 3, wherein said et feast one cap includes a cylindricalpole standing upright from said base member.
5. A lamp as set forth in paragraph 4, wherein said cap further includes a cone-shaped portion on top of said cylindrical pole such that said cylindrical pole intervenes between said base member and said cone-shaped portior- in the form of a constricted portion.
A) 6. A lamp as set forth in paragraph 1 or paragraph 2, wherein said base member has at least one small aperture at a position corresponding to said at least one bridge of said lace curtain, said at least one insulation cap in the base member being adapted to be 1() brought into engagement with said at least one small aperture, to close the associated gap, said at least one cap having a shape complimentary to said aperture.
7. A lamp as set forth in paragraph 6, wherein said aperture is of a circular shape while said cap is of a disk shape.
8. An automotive room lamp with cover means for insulated portion thereof, comprising a base member made of synthetic resin, a holder for holding a plus side lamp terminal integrally formed in said bus bar accessibly from outside; and a cap integrally formed in said base member at the time of injection molding to cover said holder.
9. A lamp as set forth in any one of paragraphs 1 to 7 and comprising a holder for holding a plus side lamp terminal integrally formed in said bus bar accessible from outside, and a cap integrally formed in said base member at the time of injection molding to cover said holder.
10. A lamp as set forth in paragraphs or paragraph 9, wherein said base member is formed with at least one tl-ir- portion which said cap is folded over across said thin portion to cover said holder.
11. A lamp as set forth in any one of paragraphs 8 to 10, wherein said cap is integrally formed with a lockmecharlism composed of a lock piece and a lockmember, said lock piece being integrally formed in said base member.
12. An automotive room lamp with cover means for ]5 insulated portions thereof substantially as described with reference to and as illustrated by the accompanying drawings. l
Claims (4)
1. An automotive room lamp with cover means for insulated portion thereof, comprising a base member made Or, oL synthetic resin, a bus bar, a holder for holding a plus side lamp terminal integrally formed in said bus bar accessibly from outside) and a cap integrally formed in said base member at the time of injection molding to cover said holder.
2. A lamp as set forth in claim 1, wherein said base member is formed with at least one thin portion which said cap is folded over across said thin portion to cover said holder.
3. A lamp as set forth in any one of claims 1 to 2, wherein said cap is integrally formed with a lock mechanism composed of a lock piece and a lock member, said lock piece being integrally formed in said base member.
4. An automotive room lamp with cover means for insulated portions thereof substantially as described with reference to and as illustrated by the accompanying drawings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002138449A JP2003327043A (en) | 2002-05-14 | 2002-05-14 | Insulating device for room lamp for vehicle |
| GB0310597A GB2390759B (en) | 2002-05-14 | 2003-05-08 | Automotive room lamp with cover means for insulating portions thereof |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0512669D0 GB0512669D0 (en) | 2005-07-27 |
| GB2412794A true GB2412794A (en) | 2005-10-05 |
| GB2412794B GB2412794B (en) | 2005-11-16 |
Family
ID=35045269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0512669A Expired - Lifetime GB2412794B (en) | 2002-05-14 | 2003-05-08 | Automotive room lamp with cover means for insulating portions thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2412794B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2428908A (en) * | 2005-07-28 | 2007-02-07 | T An T Kk | Insulating structure between bus bars for vehicle interior lamp |
| EP2634877A1 (en) * | 2012-02-28 | 2013-09-04 | Pompes Salmson | Method for manufacturing a control housing for a circulation pump |
-
2003
- 2003-05-08 GB GB0512669A patent/GB2412794B/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2428908A (en) * | 2005-07-28 | 2007-02-07 | T An T Kk | Insulating structure between bus bars for vehicle interior lamp |
| GB2428908B (en) * | 2005-07-28 | 2009-07-01 | T An T Kk | A vehicle room lamp |
| EP2634877A1 (en) * | 2012-02-28 | 2013-09-04 | Pompes Salmson | Method for manufacturing a control housing for a circulation pump |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2412794B (en) | 2005-11-16 |
| GB0512669D0 (en) | 2005-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Expiry date: 20230507 |