JPS5922006B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lighting device with an improved lamp mounting structure.

Conventionally, in the case of lamps such as light bulbs that have a flange for position regulation on the base, a lamp support seat having a lamp insertion hole is placed on the top of a reflector, as seen in Japanese Utility Model Publication No. 48-36781. It is common to attach the lamp by attaching it to the seat, touching the front of the tsuba to the back of the seat, and then screwing the ring-shaped clamp into the seat.

According to this structure, there is no need to hold the bulb part to attach or remove the lamp, so the bulb part will not be soiled.
The disadvantage is that it is difficult to install and remove the lamp, making it difficult to work quickly.

On the other hand, in the case of sealed beam light bulbs for vehicles, as seen in Japanese Utility Model Publication No. 50-34955, there are three protruding protrusions around the periphery of the light bulb lens, and three protrusions are installed on the shore side. Stand the bolts upright, insert the coil springs into each bolt, and install by inserting the pre-prepared pothole holes in the child into the head of the bolt and then turning. The bulb is elastically sandwiched between the coil spring and the coil spring to attach the light bulb.

According to this structure, it is easy to install and remove the sealed beam light bulb, and the workability is good, but since the bulb part is held, the bulb part is easily soiled.

In the case of sealed beam light bulbs, a reflector is formed inside, so dirt on parts other than the front lens will not directly affect the optical characteristics, but for lamps other than sealed beam light bulbs, the optical characteristics will be affected. The impact cannot be ignored.

In addition, since the position of the bulb is regulated by the head of each bolt, aiming can be performed by turning the bolts individually, but this requires strict control of the forward and backward movement of all bolts. This means that the desired positioning of the object becomes impossible.

As mentioned above, known lamp mounting structures have advantages and disadvantages and are not necessarily satisfactory.

SUMMARY OF THE INVENTION An object of the present invention is to provide an illumination device in which the position of a lamp can be managed with high precision, and in which attachment and detachment is extremely easy.

The present invention provides a fixed support body having a lamp insertion hole, a flange of a cap part is brought into contact with the back surface of the support body to determine the position, and a plurality of slideable lamps are provided on the support body. An engaging body is provided, an engaging protrusion is formed at one end of the back surface of the support body, and the engaging protrusion is always biased toward the back surface of the support body by an elastic force, and the lamp To attach the collar, a locking hole formed in the collar is fitted into the engaging protrusion, and the collar is then rotated, whereby the engaging protrusion elastically attaches the collar to the back of the support. Since the lamp is in pressure contact with the lamp, the lamp is firmly attached and at the same time its position is regulated as desired.

With this configuration, the lamp can be installed and removed very easily, and the lamp can be positioned with high accuracy, so it can of course be applied to a variety of lighting devices, and is suitable for marker lights, etc. .

If necessary, if the other ends of each of the engaging bodies are connected by a ring-shaped connecting plate, the sliding of each engaging body can be performed uniformly, and the operation can be made more circular.

In addition, an operating section is further provided on the connecting plate, and the operating section is configured to displace the engaging body against the elastic force in advance and retreat the engaging protrusion backward from the support when the lamp is attached or removed. Once operated, the lamp will be easier to install.

An embodiment in which the present invention is applied to an embedded marker light will be described below with reference to the drawings.

In the drawings, FIG. 1 is a sectional view of the assembled state, and FIG. 2 is an exploded perspective view thereof.

In the figure, reference numeral 1 denotes a metal container that houses a transformer 2 therein.

The container 1 is formed into a cylindrical shape with an open upper end, and is provided with a cord insertion hole 3 on one side and a ring-shaped support plate 5 having four screw holes 4 around the upper opening.

Note that 6 is an auxiliary ring provided above the container 1.

A holder 7 is fixed to the screw hole 4 of the support plate 5 via four screws 8.

The holder 7 is formed into a flat disk shape with a tapered outer peripheral edge on the upper surface, and is made of cast metal such as iron or aluminum.
Four elongated holes 10 penetrate from the top surface to the bottom surface, and have a storage hole 9 in the center and four elongated holes 10 around which the screws 8 are inserted. The light emitting guide groove 11 has a fitting protrusion 12 on the bottom side that fits with the inner periphery of the support plate 5, a connecting portion 13 that contacts the inner and outer peripheries of the upper surface of the support plate 5 on the outside thereof, and a coupling portion 13 in between. - An annular cavity 14 is formed respectively.

Further, an annular groove 15 is formed in the inner connecting portion 13, and an O-ring 16 for sealing the gap between the container 1 and the support plate 5 is accommodated in the annular groove 15.

Further, the storage hole 9 is composed of a rectangular recess 17 that is open to the top side and an opening 19 that is open to the bottom side from the bottom support surface 18, and screw holes 21 are provided at the four corners of the support surface 18.
A taper 22 is formed at the inner peripheral edge of the upper end of the opening 19, respectively.

An optical system unit 24 is attached to the screw hole 21 of the storage hole 9 via an O-ring 23 with a screw 25.

The optical system unit 24 includes a lower case 26 and a seventeen-part case 27.
A box body 30 is hermetically constructed with a screw 29 via an O-ring 28 between the box body 30 and a screw 31 inside the box body 30.
It is composed of a base body 32 held via a base body 32, and an optical system 33 attached to the base body 32.

The lower case 26 is formed by drawing and press-forming a single metal plate into an integral part, such as a cylindrical portion 34 that fits into the opening 19 of the holder 7 and a flange portion 35 that fits into the recess 17 of the holder 7. An inwardly bulging portion 36 and a plurality of outwardly protruding protrusions 37 are formed at the bottom of the cylindrical portion 34, and screw insertion holes 38° are provided at the four corners of the flange portion 35 through which the screws 25 and 29 are inserted. 39 are formed respectively.

An insulating plate 40 is attached to the upper surface of the bulge 36 from the inside with screws 41, and a lead wire 42 from the transformer 2 and a lead wire 44 connected to the lamp socket 43 are connected to the insulating plate 40. A connecting terminal 45 is buried therein, and the space of the bulging portion 36 on the outside thereof is filled with a heat-resistant resin 46 such as an epoxy resin or a silicone resin cylinder.

The upper case 27 is formed by casting iron or aluminum or the like so as to fit into the recess 17 of the holder 7, and forms a sealed circular storage section 47 together with the lower case 26 at the center of its bottom surface. A screw hole 49 into which the screw 31 is screwed and the 01
An annular groove 50 for accommodating the J-ring 28 has screw insertion holes 51 through which the screws 25 are inserted and screw holes 52 into which the screws 29 are screwed, respectively, formed at the four corners.

Further, a rectangular light projection window 53 is opened on one side of the space 48, and a waterproof glass 54 is fixed to the light projection window 53 with adhesive or the like.

The base body 32 is formed of a metal plate into a ring shape with a diameter slightly smaller than the inner diameter of the lower case 26, and a screw insertion hole 55 through which the screw 31 is inserted is formed around the ring shape.

The optical system 33 includes a light source lamp 56 such as a halogen lamp,
It is composed of a reflector 57 in the shape of a paraboloid of revolution or an ellipsoid of revolution having an aperture 110, a filter 58, and a light control body 59 such as a lens or prism. The filter 58 and the light control body 59 are attached to the rear of the base body 32 via a second support frame 6.
1 and supported on the front part of the base body 32, respectively.

The first support frame 60 has screws 6 on both sides with respect to the base body 32.
2, the reflector mounting plate 63 is attached in a position-adjustable manner, and the opening periphery of the reflector 57 is attached to the central part of the reflector mounting plate 63. and a support body 65 that holds the light source lamp 56.

As shown in FIGS. 3, 4 and 5, the support 6
5 has a lamp insertion hole 101, and further includes a lamp insertion hole 1.
01 has a plurality of pin insertion holes 102.

A plurality of, for example, three, engaging bodies 105 are slidably inserted into the pin insertion hole 102, each having an engaging protrusion 104 formed by a taper 103 at its rear end.

Each of these engaging bodies 105 has an engaging protrusion 104 that is always connected to the supporting body 65.
It is configured to be elastically biased in the direction of the back surface of the camera.

For example, a coil spring 109 is inserted through the engaging body 105 between the front part of the support body 65 and the other end of the engaging body 105.

If necessary, the other end of each engaging body 105 is caulked or screwed with a nut 1.
06 etc. can be connected to each other by a ring-shaped connecting plate 108, and furthermore, the operating body 1 can be connected to the connecting plate 108.
07 can be formed.

The light source lamp 56 is made of, for example, a light bulb, and is composed of a bulb portion 56f and a base portion 56a, which is disposed at one end of the bulb portion 56f and into which the lamp socket 43 is fitted.

Further, a disc-shaped flange 56b, for example, is formed at the tip of the base portion 56a, and a plurality of locking holes 56e that can fit into the engagement protrusions 104 of each of the engagement bodies 105 are formed in the flange 56b. There is.

The locking hole 56b is composed of a large diameter hole 56c having a slightly larger diameter than the engagement protrusion 104 and a small diameter elongated hole 56d connected to the large diameter hole 56c.

The second support frame 61 has screws 6 on both sides with respect to the base body 32.
6, the light control body 5 is attached to the inside so that the position can be adjusted freely.
Screw holes 68 on both sides of the rear surface of the light control case 67 that houses the
A mounting piece 69 having a temperature of .degree. C. is bent.

The mounting piece 71 of the filter case 70 attached to the outer periphery of the filter 58 is attached to the mounting piece 69 with a screw 72.
It is installed by

Next, the assembly method and its operation will be explained.

The container 1 is buried and fixed in a hole excavated with a cutter or the like at the same time as the road surface is being constructed, or after the construction is completed.

Then, the holder 7 is placed on the support plate 5 of the container 1 in this state, and the screw 8 is inserted from above through the elongated hole 10 and screwed into the screw hole 4 of the support plate 5. to be fixed.

On the other hand, when installing the light source lamp 56, hold the base part 56a and fit the locking hole 56e of the collar 56b into the engagement protrusion 104. It rotates in the direction of the hole 56d.

Then, the periphery of the small-diameter elongated hole 56a is pressed toward the back side of the support body 65 by the engaging protrusion 104, and as a result, the collar 56b
is pressed against the back surface of the support 65 and positioned as required.

Note that the connecting plate 108 allows each engaging body 105 to slide uniformly,
This contributes to attaching and detaching the lamp 56 to the circular waste.

If the operating body 107 is operated to slide the engaging body 105 in advance against the elastic force, and the locking hole 568 of the collar 56b is fitted into the engaging protrusion 104, the rotation is performed. Rotation can be easily performed with a small torque.

In this way, the lamp socket 43 is attached to the base portion 56a of the light source lamp 56.

Further, the filter 58 is attached to the attachment piece 69 of the second support frame 61 using the screw 72, and in this state, the base 32
The optical system 33 arranged above is adjusted.

First, since the light emitting center of the light source lamp 560 is basically set at the focal point of the reflector 57, when adjusting it, the flange of the light source lamp 56 is This is done by measuring the distance to 56b.

Furthermore, the relationship between the light source lamp 56, the filter 58, and the light control body 59 is the same as that of the first and second support frames 60, 61.
Adjust by moving.

Next, the base body 32 in this state is fixed to the bottom surface of the upper case 27 with screws 31, and then the annular groove 5 of the upper case 2T is
Attach the rear lower case 26 containing the O-ring 28 to the screw 29.
is fixed to form the optical system unit 24.

In the optical system unit 24 in this state, since the O-ring 28 is interposed at the joint surface between the upper case 27 and the lower case 26, the inside of the box 30 is configured to be sufficiently airtight.

Then, an O-ring 2 is attached to the side cylinder part 34 of the lower case 26.
3, the optical system unit 24 is housed in the housing hole 9 of the holder 7 and fixed with screws 25.

Then, the holding body 7 and the optical system unit 24 are connected to the O ring 2.
Since the container 1 is fixed with the container 3 in between, rainwater or dust is prevented from entering the inside of the container 1.

Furthermore, the optical system unit 24 needs to be removed from the holder 7 during repair after installation, but when the optical system unit 24 is removed, dirt and the like that have entered the recess 17 of the holder 7 may get around the O-ring 23. Even if it accumulates, the surface is taper2
2, it can be easily cleaned.

On the other hand, regarding the optical system unit 24 that was removed, the box body 30
Since it is in an airtight state, even if it is placed on the road surface, it can prevent the intrusion of dirt and the like.Moreover, when it is removed and placed on the road surface, etc., there is a protrusion 37 on the bottom of the lower case 26, and the terminal 45 protrudes. Therefore, the lead wire 42 and the like are not bent.

As described in detail above, the present invention includes a plurality of engaging bodies slidably inserted into a support body, an engaging protrusion provided at one end of each engaging body on the back side of the support body, and a support body serving as the engaging protrusion. Since the collar is always elastically biased toward the back of the support, the position of the lamp can be precisely controlled by press-contacting the collar to the back of the support, and at the same time, when installing the lamp, it is possible to grip and fit the base of the lamp. It is very easy to install and remove the lamp as all you have to do is turn it.

Of course, the bulb part of the lamp will not be contaminated and the lamp characteristics will not be impaired.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view thereof, Fig. 3 is an exploded perspective view of the main parts, Fig. 4 is a sectional view, and Fig. 5 is a sectional view of the same. It is an enlarged sectional view showing a part of. 56... Lamp, 56a... Base part,
56b...Brim, 568...Latching hole as a locking part, 56f...Valve part, 65...
... Support body, 101 ... Lamp insertion hole, 10
4... Engaging protrusion, 105... Engaging body.

Claims (1)

[Scope of Claims] 1. A stationary support body having a lamp insertion hole, and an engagement protrusion at one end that is slidably inserted into the support body and located on the back surface of the support body, and the engagement protrusion is provided at one end of the support body. A plurality of engaging bodies configured to always elastically bias the protrusion toward the back surface of the support body, a valve portion, and a plurality of locking holes attached to one end of the valve portion. and a cap part having a flange, the lamp having a bulb part inserted into the lamp insertion hole of the support body, and a locking hole of the flange fitted into the engagement protrusion of the engagement body. 1. A lighting device characterized in that when the collars are brought together and then rotated, the collar is brought into contact with the back surface of the support body, and is pressed against the rear surface of the support body by the engaging protrusion and placed in place. 2. The lighting device according to claim 1, wherein the respective engaging bodies are connected to each other by a ring-shaped connecting plate at the other end. 3. The second aspect of the present invention is characterized in that the connecting plate includes an operating section, and by operating the operating section, the engaging protrusion can be displaced backward from the support body against elasticity. The lighting device described in Section 1.