JPH0133384Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an indoor lamp, and more specifically, to an indoor lamp for a vehicle or the like that can be used both indoors and as a spot lamp.

[Prior Art] Vehicles, etc. have interior lamps that are turned on in conjunction with the opening and closing of a door or by the operation of a switch, and spots where the direction of the light beam can be fixed or variable to make it convenient for viewing maps, etc. from the driver's or passenger's seat. A lamp is installed.

For example, as shown in Japanese Utility Model Application Publication No. 58-139240, it is made up of a hemispherical lantern having a lamp socket inside and a light transmitting member that is attached to the opening of the lantern, and a lens part and a hood are connected to each other. Consisting of an integrally provided hemispherical lamp cap, a lamp cover having a through hole through which a part of the lamp cap is exposed, and a holding spring plate having an elastic piece that comes into elastic contact with the outer periphery of the lantern, By constructing the attachment body between the lamp cap and the lamp casing in elastic contact with the inner circumferential surface of the through-hole of the lamp cover and the elastic piece of the presser spring plate, the hood is exposed on the outer part of the lamp cover. It has been proposed that the optical axis of the lamp cap lens can be varied by operating the lamp cap, and that light can be projected from almost the entire lamp cap.

Furthermore, in addition to cases where interior lamps and spot lamps are installed separately and in different mounting positions, such as in medium- or large-sized passenger cars, as described in Publication No. 59-269, it is possible to A lantern integrally provided with a bullet-stopping piece, a hole that is fitted into the opening of the lantern and through which a part of a two-part spherical lamp cap made of a light-transmitting member is exposed, and a diffused reflection surface are formed. A lamp is provided inside one of the lamp caps, and a lens portion and a stopper are integrally provided on the outer periphery of the other cap, and the cap is pressed by the clamping bullet. Accordingly, an indoor lamp for a vehicle or the like has been proposed in which a lantern and a lens optical axis of a lamp cap in the lantern can be moved within a range in which the stopper hits the lantern cover.

However, in both of these indoor lamps, the lamp cap is divided into two parts: the lamp cap with the lamp inside and the lamp cap with the lens attached, which makes it difficult to assemble, and when the lamp cover is removed, the lamp cap is divided into two parts. The problem was that it could fall off.

In order to eliminate such drawbacks, an indoor lamp has been proposed in which a ring body for holding the lamp cap is locked to a locking piece formed integrally within the lamp casing.

[Problem to be solved by the invention] However, it is possible to lock the cap by locking a locking piece integrally formed inside the lamp casing with a locking portion of a retaining ring whose diameter is slightly smaller than the diameter of the lamp cap. By attaching it so that it can rotate freely, the lamp cap will not fall even if it is removed from the lantern housing, but since the retaining ring is attached like a headband around the lamp cap, there will be a shadow from the light and the surrounding area of the lamp cap will be damaged. In addition to the disadvantage that the light is much darker than the center, there is also the disadvantage that the light is emitted from almost the entire surface of the lantern, resulting in little spotting effect and causing a nuisance to others.

This invention eliminates the above-mentioned drawback of the light shadow that occurs around the lamp cover, and provides an interior light for a vehicle that blocks the light rays from the lamp cover and prevents the lamp cap from falling even when the lamp cover is removed from the lamp casing. The purpose is to

[Means for Solving the Problems] The purpose of the above-mentioned invention is to provide a lamp casing with a lamp socket insertion hole in the bottom, and a two-part substantially spherical lamp cap made of an opaque material, with a part exposed. An opaque lamp cover has a hole formed therein so that it can be attached to the lamp casing, and one lamp cap forming body has a spherical head portion cut out so that the lamp that is exposed inside the lantern casing through the hole is inserted into the cap. The lamp cap has an opening formed therein so that the lens hood can be inserted into the lens hood, and a lens hood protrudes from the lens mounting portion of the spherical head portion of the other opaque lamp cap forming body, and the lamp cap can be joined by a fitting member formed on the two dividing surfaces. The substantially spherical lamp cap is held by a plurality of holding members that are in elastic contact with the outside of the lamp cap, and the optical axis of the lens can be displaced within the range where the lens hood hits the edge of the hole formed in the lamp cover. This can be achieved by doing.

[Function] When the lamp is lit, light is emitted in a spot through only the lens of the lamp cap, and the optical axis of the spot can be varied by rotating the lens cap.

[Example] The interior lamp used in a vehicle etc. of this invention is
As shown in Figures a and b and Figure 2, a synthetic resin lantern 10 that is attached to a ceiling plate 50 of a vehicle;
Opaque lamp cover 20 fitted into the opening of this lantern
, an opaque lamp cap 30 disposed within the lantern casing, and a lamp holder 40 attached to the lantern casing.

As shown in FIGS. 1a and 2, the lantern 10 is made of non-translucent synthetic resin and has a rectangular shape.
A pair of locking holes 53 formed in an inner wall 52 of an indoor lamp mounting hole 51 provided in a ceiling plate 50 of a vehicle or the like at both longitudinal ends of the lamp casing are locked when the lantern is installed. The bullet piece 12, a socket which is a part of the lamp holder 40, and a lamp socket insertion hole 131 for inserting the lamp into the housing 11 are formed on the bottom plate 13 of the housing, and around this insertion hole there are holes as shown in FIG. 1b. A bullet insertion piece 14 is provided with an insertion hole 141 into which a holding member 15 curved to hold the lamp cap 30 with a spring material is inserted and locked using a claw 151 formed at one end thereof. Three locking protrusions 1 are respectively provided on the bottom plate, and the longitudinal side plate 17 of the housing 11 has a locking groove 181 carved on the outside, into which the projection 23 formed on the lamp cover is locked.
8 is provided.

As shown in FIGS. 1a and 2, the opaque lamp cover 20 is made of non-transparent synthetic resin, and the edge of the shallow dish-shaped cover 21 has a flange portion 22 extending outward. A pair of protrusions 23 that engage with the locking grooves 181 of the locking projection piece 18 are provided on a part of the inner side of the edge, and a pair of protrusions 23 that engage with the locking grooves 181 of the locking protrusion 18 are provided approximately in the center of the lid body. A lamp cap exposing hole 25 into which a small diameter lamp cap holding ring 26 is fitted is provided.

The lamp cap 30 is made of opaque synthetic resin, as shown in FIG. A hemispherical opaque lamp cap forming body 31 with a stepped part 311 as a fitting member protruding from the surface, and a transparent lens 321 provided on the spherical head part, protruding outward from the periphery and forming a knurl 324 around the periphery. A substantially hemispherical opaque lamp cap forming body 32 is provided with a cylindrical opaque lens hood 323 projecting thereon, and a fitting hole 325 into which the stepped portion, which is the fitting member, is fitted in the bisected surface. ing.

The lamp holder 40 is protruded from the ridge-forming surface of the holding plate 41, which has a pair of latches 42 curved outward so that it can be fitted into the inner surface of the lamp socket insertion hole 131 formed in the bottom plate 13. It consists of a lamp socket 43 and a lamp 44 screwed into the lamp socket, and the conductor wire is led out from a conductor lead-out hole formed in the holding plate.

The indoor lamp of this invention is composed of the above-mentioned parts, and when assembling it, the lamp holder 40 with the lamp 44 screwed thereon is inserted into the locking hole 132 provided near the lamp socket insertion hole 131 of the lamp casing 10. 4
2, and insert the rod 42 into the groove formed on the circumferential surface of the hole.
A pair of opaque lamp cap forming bodies 3 is attached by fitting the protrusions formed on the outside thereof, and then inserting the stepped portion 311, which is a fitting member, into the fitting hole 325.
Assemble 1 and 32 into a spherical shape, and insert 3 pieces of bullet insertion piece 1
2. Insert the holding member 15 into each insertion hole 141 of 4, and push it outward against the elasticity of the holding member 15 to insert the lamp cap 30 as shown in FIG. and the protrusion 23 of the opaque lamp cover 20
The locking protrusions 18 are crimped so that they are engaged with the locking grooves 181 of the locking protrusions 18, so that they are fitted and assembled as shown in FIG.

The indoor lamp assembled in this way is inserted into the indoor lamp mounting hole 51 of the ceiling plate 50 of a vehicle, etc.
A locking hole 53 formed in the inner wall 52 of the hole
The locking bullet piece 12 is inserted into and locked. After this, connect the wiring inside the ceiling board to the conductor.

When the lamp is turned on, the light from the lamp 44 is focused by the transparent lens 321 of the lamp cap 30 made of opaque resin, and is focused by the lens hood 323.
More spot light is irradiated.

This spot light can be held by the curved portion of the holding member 15 around the lamp position until the lens hood 323 comes into contact with the lamp cap holding ring 26, and can be rotated in a circular motion. When looking at maps, books, etc. from a room, the opaque lamp cap allows for more localized spot illumination than in a room.

Note that one lamp cap forming body 31 of the lamp caps 30 may be made of a transparent member,
Turning the light off and on is the same as a conventional indoor lamp that uses a switch.

[Effects of the invention] As described above, this invention consists of a lamp casing 10 having a lamp socket insertion hole 131 in the bottom, and a hole through which a part of the two-part, substantially spherical lamp cap 30 made of an opaque material is exposed. an opaque lamp lid 20 having a shape of 25 and capable of being attached to the lamp casing 10;
One of the opaque lamp cap forming bodies 31 has an opening 312 formed by cutting the spherical head part so that the lamp 44 exposed inside the lantern casing 10 through the hole 25 can enter into the lamp cap 30, and the other A lens hood 323 is protruded from the lens mounting portion 322 of the spherical head portion of the opaque lamp cap forming body 32, and a fitting member 311 is formed on the two-part surface;
said lamp cap 3 which can be coupled with 325
0, the substantially spherical lamp cap 3
0 is held by a plurality of holding members 15 that are in elastic contact with the outside thereof, and the optical axis of the lens 321 can be changed within the range where the lens hood 323 touches the edge of the hole formed in the opaque lamp cover 20. Even when the lamp cap is opened, the lamp cap remains inside the housing, making it easy to assemble and replace the lamp.Assembling requires no screws or other mounting parts all at once, it is easy to work with. The illuminance does not change, and since no light is emitted from the opaque lamp cover or the periphery of the opaque lamp cap, and the light is only projected from the transparent lens, localized illumination is possible and does not affect other people in the vicinity. Since no light is emitted, it will not cause any trouble while sleeping, etc.
Therefore, it has the advantage of being suitable for use in moving vehicles such as buses and airplanes that do not carry a large number of passengers.

[Brief explanation of the drawing]

The figures show one embodiment of this invention; Fig. 1a is a perspective view of the interior light with the lamp cover removed and a part of the lantern casing cut away, and Fig. 1b is a perspective view of the lamp holder and lamp. A perspective view of the cap; Figure 2 is a cross-sectional view of the interior light with the light cover removed, similar to Figure 1a; Figure 3 is a cross-sectional view of the interior light with the spot light shining directly below; FIG. 4 is a cross-sectional view of the indoor light in a state where the spot light is maximally oblique. 10... Lantern, 131... Lamp socket insertion hole, 14... Bullet insertion piece, 15... Holding member, 2
0... Opaque lamp cover, 24... Diffuse reflective surface, 25...
Hole, 30... Lamp cap, 31... Lamp cap forming body, 32... Opaque lamp cap forming body, 311, 325... Fitting member, 323...
... Lens hood, 44 ... Lamp, 321 ... Lens, 322 ... Lens mounting part, 312 ... Opening.

Claims (1)

[Scope of utility model registration request] A lantern 10 with a lamp socket insertion hole 131 arranged at the bottom, and a hole 25 through which a part of the two-part, almost spherical lamp cap 30 made of an opaque material is exposed.
The opaque lamp cover 20 is formed so that it can be attached to the lamp casing 10, and one lamp cap forming body 31 is cut into a spherical head portion and inserted into the lamp casing 1 through the hole 25.
The lamp 44 that appears within 0 is the lamp cap 30.
An opening 312 is formed so that the lens hood 323 can be inserted into the spherical head part of the other opaque lamp cap forming body 32, and a lens hood 323 is protruded from the lens mounting part 322 of the spherical head part of the other opaque lamp cap forming body 32.
11, 325, and a plurality of holding members 1 which elastically contact the substantially spherical lamp cap 30 on the outside thereof.
5, and the lens hood 323 is attached to the opaque lamp cover 2.
An indoor lamp for a vehicle, etc., characterized in that the optical axis of a lens 321 can be displaced within a range that corresponds to the edge of a hole formed at zero.