JPS6268150A - Stop lamp device - Google Patents

Abstract

PURPOSE:To maintain the function of defogger heating wire by arranging a seal member for preventing leakage of light notched at the portion close to the defogger heating wire at the outercircumferential edge section of a lens member of a stop lamp when arranging the stop lamp on the rear window glass. CONSTITUTION:The stop lamp unit 1 to be arranged on the indoor side face of a rear window glass comprises a light source 7, a lens member 9 constituted with an inner and outer lenses 9a, 9b, a seal member 11 for preventing leakage of light constituted with seal members 11a, 11b arranged above the below and to the right and left and a cover 13. Notches 15 are formed in the right and left side seal members 11b at the position close to a defogger heating wire 5 wired on the inside face of the glass 3 thus to prevent deterioration or deformation of the seal member 11b due to the heat produced by said heating wire 5. A light shielding member applied with black paint on the surface while corresponding with the notch 15 at the position corresponding with the defogger heating wire 5 is projected from the outer lens 9b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a stop lamp device of the so-called high mount stop lamp device.

[Description of Prior Art] In recent years, in addition to stop lamps installed at the rear of vehicles,
A stop lamp is installed at a higher position than this stop lamp, for example, on the rear window glass (Japanese Patent Laid-Open No. 57-742
(Refer to Publication No. 37, Rear Window Glass for Automobiles), a stop lamp device has been proposed that promptly informs following vehicles that the vehicle is braking. Incidentally, the above-mentioned publication discloses an example in which a stop lamp device is firmly fixed by adhering it to a window glass.

By the way, a defogger heating wire may be disposed on the rear window glass, and in this case, a problem of interference between the defogger heating wire and the stop lamp device arises.

That is, as is well known, a sealing member for preventing light leakage is usually installed between the stop lamp device and the window glass, but if this sealing member comes into contact with the defogger heating wire, the The sealing member will burn or melt.

Conventionally, attempts have been made to avoid the above-mentioned interference problem by omitting the sealing member for preventing light leakage or omitting the defogger heating wire near the mis-stop lamp device.

However, omitting the seal member for preventing light leakage requires alternative light leakage countermeasures, such as increasing the distance between the lens member and the window glass, increasing the size of the cover surrounding the lens member, and increasing the size of the cover that surrounds the lens member. There is a risk that dust and dirt may enter the lens surface of the device and narrow the rear field of view. Furthermore, if the defogger heating wire is omitted, it becomes impossible to remove fog near the stop lamp device, which impairs rear visibility and reduces the intensity of light emitted from the stop lamp device. There was a problem with becoming.

OBJECT OF THE INVENTION] The present invention improves the above-mentioned problems and provides a high-mounted stop lamp device that does not impair the function of the defogger heating wire and can fully demonstrate its function as a stop lamp device. The purpose is to

[Summary of the Invention] The present invention, which can achieve the above object, includes a lens member that appropriately projects light from a light source to the rear of a vehicle via a lens surface, and a defogger provided on the outer peripheral edge of the lens member. a sealing member for preventing light leakage having a cutout in a portion close to the heat ray, and a light shielding member that prevents light from the light source from passing in the direction of the cutout in a portion of the lens member facing the cutout. This is a stop lamp device characterized by having a member attached thereto, in which the light leakage sealing member is cut out at a position close to the defogger heating wire, and a shielding member that does not allow light from the light source to pass through in the direction of the cutout is attached to the lens member. By installing it, the defotsuga heat wire and the stop lamp device can coexist without affecting their functions. [Description of Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 is a layout diagram of the stop lamp device when the rear window glass of the vehicle is viewed from the rear of the vehicle, and Figure 2 is the I of Figure 1.
The enlarged cross-sectional view taken along arrow I-II, and FIGS. 3 and 4 are llll-lff and IV-IV cross-sectional views of FIG. 2, respectively.

As shown in FIG. 1, the stop lamp device @1 has a mounting number stamped on the lower side of the interior of the rear window glass 3. Further, a defogger heating wire 5 as shown in the figure is wired on the school side surface of the rear window glass 3. 5a, 5
b indicates a power supply terminal.

As shown enlarged in FIG. 2, the stop lamp device 1
is a light source 7, a lens member 9 (9a, 9b),
Consisting of a light leakage prevention sealing member 11 (118, 11b) and a cover 13, the light leakage prevention sealing member 11a,
The end edge of 11b is brought into contact with the blank side surface of the rear window glass 3 and is fixed onto a rear bar cell (not shown).

The light leakage sealing member 11 is the lens member 9 (9a).

9b) is configured to hold the outer peripheral rear end edge within the cover 13, and is composed of seal members 11a located above and below in FIG. 1, and seal members 11b located on both left and right sides. A notch 15 is provided at a position close to the defogger heating wire 5 (see FIGS. 3 and 4).

The size of the notch 15 is 1 width and 2 widths, and these dimensions are such that when a current is passed through the defogger heat 105, the sealing member 9b will not be altered or deformed by the heat emitted by the defogger heat wire. It is of sufficient size.

The lens member 9 is composed of an inner lens 9a and an outer lens 9b, and the inner lens 9a collimates the light C from the light source 7, and the outer lens 9b makes the light spread appropriately, and projects this light toward the rear of the vehicle. do. Inner lens 9
The lens a has unevenness on both sides, and the outer lens 9b has an appropriate curvature, but these details are omitted from illustration.

As shown in detail in FIG. 4, a light shielding member 17 is formed on the outer lens 9b at a position corresponding to the defogger heating wire 5, and the distance to the defogger heating wire 5 is 3, corresponding to the notch 15. There is.

The surface of the illustrated light shielding member 17 is painted black.

The illustrated light shielding member 17 is merely a protrusion on the surface of the lens 9b;

9b) is manufactured separately from the lens member 9, and for example, it is attached to the lens member and placed in the position shown in Fig. 4. It's okay. The 'a optical member 17 serves to prevent the light from the inner lens 9a from passing in the direction of the notch 15. Defotsuga fever 1
The distance 3 from the defogger heat ray 5 is such that the shielding member 17 is not altered or deformed by the heat radiated from the defogger heat ray 5, and is usually about 1 to 21IIIn. In general, the sealing member 11 for preventing light leakage is made of a material that is weak against heat, such as rubber, whereas the lens member 9 is made of a material that is strong against heat, such as glass or plastic. becomes.

The operation of the stop lamp device 1 having the above configuration will be explained.

Now, assume that a current is applied to the defogger hot wire 5. Then, the temperature of the defogger heating wire 5 rises, and the fog is removed from the entire inner surface of the rear window glass 3. At this time, a notch 15 is formed in the sealing material 1111 for preventing light leakage.
is provided, so the seal member 11 (11
b) is not deformed or altered by the heat of the defotsuga hot wire.

On the other hand, if the vehicle's brakes are now activated, the second
The light source 7 shown in the figure lights up, but the light C from this light source 7
passes through the inner lens 9a and reaches the outer lens 9b. The light other than the light that has reached the shielding member 17 is projected toward the vehicle, allowing the following vehicle to be quickly notified of the braking state of the own vehicle. Since the light reaching the shielding member 17 is shielded here, no light leaks into the interior of the vehicle. Furthermore, due to the action of the defogger heating wire 5,
The glass surface near the stop lamp device will not fog up.

As described above, the stop lamp device according to this embodiment coexists with the defogger heating wire, does not impair the function of the defogger heating wire, and can fully exhibit its function as a stop lamp device.

In addition, the wires of the defotsuga hot wire can be freely wired, and the stop lamp device can be designed with a high degree of freedom as it is only necessary to design the notch and shielding member according to the wire, and its external shape is not necessary. There's no need to make it bigger.

Furthermore, in this embodiment, the light shielding member 17 is connected to the lens member 9.
(9b''), manufacturing is easy.

[Effects of the Invention] The stop lamp device according to the present invention does not impair the function of the defogger heating wire, and can fully exhibit its function as a stop lamp device.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings all show embodiments of the present invention, and FIG. 1 shows the arrangement of the stop lamp device when the rear window glass of the vehicle is viewed from the rear of the vehicle, and FIG. T[-
The enlarged sectional view in the direction of arrow U, Figures 3 and 4 are shown in Figure 2 -
(2) and rv - rv sectional views. 1...Stop lamp device 3...Rear window 5...Defogger heating wire 7...Light source 9 (9a, 9b)...Lens member 11 (l
la, 11b)... Seal member 13 for preventing light leakage...
Cover 15...Notch 17...Light shielding member Patent applicant Nissan Motor Co., Ltd. No. Ir:! 3 5b Figure 3 Figure 4 ↓↓

Claims (1)

[Claims] It has a lens member that projects light from a light source to the rear of the vehicle through an appropriate lens surface, and a seal member for preventing light leakage, which is provided on the outer peripheral edge of the lens member and has a cutout in a portion close to the defogger heating wire. A stop lamp device comprising: a light shielding member that prevents light from the light source from passing in the direction of the notch; a light shielding member is attached to a portion of the lens member facing the notch.