JP2601633Y2 - High mount stop lamp - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high mount stop lamp which is disposed on a rear panel in a vehicle cabin so as to face a rear window glass .

[0002]

2. Description of the Related Art In recent automobiles, a lamp is incorporated in a rear protruding end of a rear spoiler provided on a rear upper surface of a vehicle body or in a vehicle compartment, and is turned on together with a brake light when a brake is operated, so that a driver of a succeeding vehicle pays attention. We are further evoking to ensure safety (Example: Shokai 63-
No. 151335, JP-A-1-233130,
JP-A-1-160751 and the like). Such a lamp is generally called a high-mount stop lamp. As a light source of the high-mount stop lamp, a general bulb (incandescent lamp) or a light-emitting diode is used (eg, Japanese Utility Model Application Laid-Open No. 63-151335, Japanese Patent Application No. 1-1).
No. 46376, Japanese Utility Model Publication No. 2-4404, etc.).

FIG. 4 shows a conventional high mount stop lamp disclosed in Japanese Utility Model Laid-Open Publication No. 63-151335.
A bulb 4 is provided in a rear spoiler 3 installed on the rear upper surface, and a light 5 emitted from the bulb 4 is fitted into an opening 3a formed in a rear protruding end surface of the rear spoiler 3 and is fixed as a light-emitting lens. 6 through a light guide 7.

[0004]

However, in the above-mentioned conventional high-mount stop lamp 1, a part of the light emitted from the bulb 4, that is, the light is guided from the light entrance surface 7a of the light guide 7 facing the bulb 4. Light 5 entering body 7
Therefore, there is a problem in terms of effective use of light, and it is necessary to increase the number of bulbs 4 to obtain bright illumination.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to make it possible to effectively use light emitted from a bulb and to reduce the number of bulbs. It is an object of the present invention to provide a high-mount stop lamp for obtaining bright illumination.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The first idea is to face the rear window glass in the cabin
In the high-mounted stop lamp which is disposed, bar
A lens forming a light emitting portion, and the lens and the lens
Between the bulb and the light emitted from the bulb
A light guide for guiding to the lens, and a bulb side of the light guide.
Forming a valve insertion hole at the end where the valve is inserted
Cover the valve side end with a reflector.
The end face opposite to the lube side faces the lens and
An emission surface for emitting light from the bulb is provided.
It is characterized in that an inclined portion is provided between the lube insertion hole.
Further, the second device is the same as the first device, except that the rear
It is characterized by being arranged below the flannel. Further
The third device is the same as the first or second device.
The light guide is composed of at least two members and has a bulb insertion hole.
Is formed of a material with high heat resistance
It is characterized by being.

[0007]

In the present invention, the light emitted from the bulb enters the light guide through the inner peripheral surface of the valve insertion hole, and the light emitted from the end face of the light guide opposite to the emission face is reflected by the reflector. And is re-entered into the light guide. Therefore, light loss is small. The slope of the light guide is a bulb
And the height of the lens can be different. Accordingly
The projecting part on the rear panel can be reduced.
The rear window glass can be used widely. Also, rear panel
When the high mount stop lamp is placed below the
The rear panel can be formed flat and the rear window
Lath and panel top surface can be used more widely
You. Materials with high heat resistance are sufficient
No deformation to withstand. Also, place it near the valve
So that there is less light loss.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a sectional view showing an embodiment of the high-mount stop lamp according to the present invention, FIG. 2 is a partially cutaway plan view of a main part of the lamp with a cover removed, and FIG. 3 is a front view of the main part of the lamp. is there. In the drawing, the same components as those in FIG. 4 are denoted by the same reference numerals. In these figures , 10 is a rear window glass of an automobile, 11 is a rear panel, 12 is a vehicle body, 13 is a trunk room, and 14 is a rear panel 1 facing the inner surface of the rear window glass 10.
1 is a high-mount stop lamp provided in a space 15 formed between the vehicle body 1 and the vehicle body 12.

The rear window glass 10 is inclined at a predetermined angle toward the front side of the vehicle body, and has two strip-shaped light shielding portions 16A and 16B long in the left-right direction and separated vertically in a lower portion of the inner surface. These strip-shaped light shielding portions 16A, 16B
Are provided corresponding to the rear panel 11 and the vehicle body 12, respectively.
And the vehicle body 12 is prevented from being visually recognized through the rear window glass 10.
The glass portion between B forms a transparent portion 10A and faces the high mount stop lamp 14. 17 is a gasket.

The high mount stop lamp 14 is
A housing 20, a bulb 4, a light guide 7 and a reflector 21 disposed in the housing 20, and a housing 2;
0, the lens 6 and the shade 22 disposed on the front side.

The housing 20 includes a body 23 formed of a white resin or the like, and a cover 2 made of the same white resin or the like and fitted and fixed to an opening on the upper surface of the body 23.
4 and a thin box shape long in the left-right direction.
0A is thinner and higher than the rear half 20B, and a connecting portion between the front half 20A and the rear half 20B forms an inclined portion 20C inclined at a required angle.

The valve 4 is mounted in the rear half 20B of the housing 20 from the trunk room 13 and, therefore, a valve insertion hole through which the valve 4 is inserted from below is provided on the bottom surface of the rear end of the body 12 and the body 23. 26 and a valve mounting hole 27 are respectively formed.

The lens 6 is attached to the front opening 28 of the housing 20 via the shade 22. The shade 22 is formed into a tubular body elongated in the left-right direction by molding a resin, is fitted into the front opening 28 of the housing 20, and the folded portion 22 a connected to the front end opening has a folded portion 22 a of the housing 20. Front side opening 2
8 is fitted to the outer surface. On the upper and lower surfaces of the rear end portion of the shade 22, two locking holes 30 and 31 are respectively provided side by side in the front-rear direction so as to be spaced apart in the front-rear direction. The formed triangular projection 32 is fitted and locked, thereby preventing the shade 22 from coming off.

The lens 6 is formed in a horizontally long thin box shape opened to the back side by a translucent resin or the like colored red, and a diffusion step (not shown) including a number of small convex lenses is formed on the inner surface. A front engaging hole 31 formed on the upper and lower surfaces of the shade portion 22 has a triangular convex portion 33 protruding from the upper and lower surfaces of the peripheral wall portion 6a integrally protruding over the entire periphery of the rear surface. The lens 6 is prevented from coming off.

The light guide 7 includes one first light guide 7A and a plurality of second light guides 7B. The first light guide 7A, the housing 20 to the intermediate portion is formed to gradually thickness becomes thick plate-like body according to reach longer in the lateral direction by a transparent resin such as an acrylic resin, and from the front end to the rear end Inclined part 4 inclined at substantially the same angle as the inclined part 20C
The body 23 is fixed to the inner bottom surface of the body 23 by a plurality of set screws 34. The front surface of the first light guide 7A is formed in close proximity to the inner surface of the lens 6 to form an emission surface 35, and the rear surface is formed with a plurality of paraboloids 36 projecting rearward continuously in the width direction. And these paraboloids 3
A semicircular fitting recess 37 into which the second light guide 7B fits is provided at the top of each 6. Further, an equilateral triangular or isosceles triangular hole 38 is formed in the middle of the first light guide 7A in the front-rear direction and in front of each fitting recess 37 so as to penetrate the upper and lower surfaces. The hole 38 reflects the direct light 39 having a small emission angle emitted from the bulb 4 toward the front to eliminate the uneven brightness of the lens 6, and is formed with the apex 41 facing rearward. And the emitted light 3
9 is reflected obliquely forward.

The second light guide 7B is made of a material having higher heat resistance than that of the first light guide 7A, for example, glass, and is formed into a deformed disk shape, and a valve insertion penetratingly formed toward the rear on the center line in the width direction. The valve 4 is inserted into the valve insertion hole 43 from below. The second light guide 7B
Is a paraboloid having a front surface formed in an arc surface 44 and joined to the inner surface of the fitting recess 37 by welding or the like, and a rear surface exposed rearward from the fitting recess 37 having the same curvature as the paraboloid 36. 45. The valve insertion hole 43 is formed so that the center coincides with the focal point P of the paraboloids 36 and 45. The second light guide 7B is formed so that the plate thickness is the thickest at the center and becomes thinner toward the outer periphery. The outer peripheral portion on the front side of the second light guide 7B is provided with a bulb 4.
In order to efficiently transmit light from the first light guide 7A, the light is fitted into a fitting groove 47 formed on the inner peripheral surface of the fitting recess 37.

The reflector 21 is formed of a metal plate or the like, and has a front surface forming a reflection surface.
The light guides 7A and 7B are closely attached to the rear surfaces of the paraboloids. The reflector 21 includes a plurality of shade portions 21 extending forward and covering above the second light guides 7B.
a, and is fixed to the inner bottom surface of the body 23 by a set screw 48.

Thus, according to the high mount stop lamp 14 having such a configuration, the loss of light is small, and the lens 6 can be brightly illuminated with a small number of bulbs.
The visibility from behind can be improved. That is, at the time of lighting, most of the light in the horizontal direction emitted from the bulb 4 enters the second light guide 7B from the inner peripheral surface of the bulb insertion hole 43, and the light traveling forward in the first light guide 7B is the first light. The light exits from the exit surface 35 through the inside of the light guide 7A and irradiates the lens 6, and the light traveling toward the rear side is once transmitted to the second light guide 7A.
B, but is reflected by the reflector 21 to become parallel light parallel to the lamp optical axis, re-enters the second light guide 7B, passes through the first light guide 7A, and exits from the exit surface 35 to form a lens. 6, and the light traveling in the left-right direction passes through the second light guide 7B and is reflected by the parabolic surface 36 of the first light guide 7A to become parallel light parallel to the lamp optical axis. Since the light is emitted from the lens 6 and illuminates the lens 6, the loss of light is extremely small, and the lens 6 can be brightly illuminated. Further, of the light emitted from the bulb 4, the direct light 39 having a small forward emission angle is reflected obliquely forward by the hole 38 provided in the first light guide 7 </ b> A.
, The brightness of the portion corresponding to is reduced, and uneven brightness can be prevented. Therefore, the lens 6 can be illuminated with substantially uniform brightness over the entire surface. Furthermore, the second
Since the light guide 7B is formed of a material having high heat resistance, the bulb 4 can be disposed close to the light guide 7B, and the loss of light can be further reduced.

In the above embodiment, the light guide 7 is provided with the first and second light guides.
Although the light guides 7A and 7B are used, a single light guide may be used.

[0020]

As described above, according to the high mount stop lamp of the present invention, a bulb insertion hole into which a bulb is inserted is formed at the bulb side end of the light guide.
Since the one end face of the light guide is covered with the reflector, the loss of light is remarkably small, so that the lens can be brightly illuminated with a small number of bulbs, and the visibility from behind can be improved. Also, the present invention is directed to a light guide.
Since the slope is provided, if the height of the bulb and the lens are different,
Can be made. This protrudes above the rear panel
The part can be made smaller and the rear window glass can be
Can be used well. In addition, the present invention
Since a stop stop lamp is installed, the rear panel
Can be formed flat, and the rear window glass and
The upper surface of the panel can be used more widely. Further
In addition, the present invention uses a highly heat-resistant material for the light guide at the bulb end.
Because it is made of
Can be deformed without deformation and close to the valve.
Since it can be placed nearby, there is little light loss.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a high-mount stop lamp according to the present invention.

FIG. 2 is a partially broken plan view of a main part of the lamp with a cover removed.

FIG. 3 is a front view of a main part of the lamp.

FIG. 4 is a sectional view of a conventional high mount stop lamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High mount stop lamp 2 Body 3 Rear spoiler 4 Bulb 6 Lens 7 Light guide 7A First light guide 7B Second light guide 10 Rear window glass 11 Rear panel 12 Body 20 Housing 21 Reflector 22 Shade 23 Body 24 Cover 35 Exit surface 43 Valve insertion hole

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B60Q 1/44 B62D 37/02 F21Q 1/00

Claims (3)

(57) [Scope of request for utility model registration] 1. A vehicle interior facing a rear window glass.
In the high-mount stop lamp arranged in the , the bulb, the lens forming the light emitting part, and this lens and the front
The light emitted from the bulb is disposed between the
A light guide for guiding the lens, and a bulb for the light guide
A valve insertion hole for inserting the valve is formed at a side end.
And the valve side end face is covered with a reflector, and
With the end face opposite to the bulb side facing the lens,
An emission surface for emitting light of the bulb, and the emission surface and the emission surface
A high-mount stop lamp characterized by having an inclined portion between the bulb insertion hole . 2. The high-mount stopler according to claim 1.
The lamp is characterized in that it is disposed below the rear panel in the lamp.
Imount stop lamp. 3. The high mounts according to claim 1 or 2.
In a top lamp, the light guide consists of at least two members, and the bulb insertion hole is shaped.
The members are made of a material with high heat resistance
High mount stop lamp characterized by the above.