JP2013103701A - Emblem for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emblem for a vehicle which improves a design effect in such a way that surroundings of the emblem are made to emit light and its contour is displayed clearly at night, and the emblem is made to appear in a relief state.SOLUTION: When a light emitting element 4 is lighted at night, its outgoing light is taken by a light receiving section 21 of a light guiding body 2, guided to the inside of the light guiding body 2, and reflected by a reflecting surface 22 corresponding to the periphery of an emblem body 5 to make the surroundings of the emblem body 5 emit light. Therefore, the contour of the emblem body 5 is displayed clearly, and the design effect is improved by making it appear in the relief state.

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle emblem that is mounted on a vehicle body outer plate of a vehicle such as an automobile, and more particularly to a so-called light emitting type vehicle emblem that emits light when lighting at night to enhance visibility and decoration effects. .

  As a light-emitting type vehicle emblem, for example, as shown in Patent Document 1 and Patent Document 2, a light source is provided, and a sign forming unit for figures, characters, symbols, etc. is emitted by light emitted from the light source when it is turned on at night. It is known to transmit light and to make it appear.

JP 2007-161233 A JP 2010-100099 A

  The techniques disclosed in Patent Document 1 and Patent Document 2 both transmit the light emitted from the light source disposed on the back surface of the light guide through the marking forming section formed by the light shielding section provided on the light guide. By doing so, the sign forming portion is caused to emit light.

  Therefore, since the sign formation part simply emits light by transmitted light, it cannot be denied that the design effect is poor.

  In addition, if the sign formation part remains transparent, the internal structure is seen through from the sign formation part during the daytime, which makes it look bad. It will be difficult to achieve both.

  Therefore, the present invention provides an emblem for a vehicle in which the surroundings of the emblem are illuminated at night, the outline line is clearly displayed, and the emblem appears in a relief shape to enhance the design effect.

  An emblem for a vehicle according to the present invention includes a housing fixed to an outer surface of a vehicle body panel, a light guide that is attached to one side opening of the housing and separates a lamp chamber, and is attached to an outer surface of the light guide. An emblem body; and a light source disposed in a projection plane of the emblem body in the lamp chamber. The light guide is formed on the back surface corresponding to the light source, receives a light emitted from the light source and guides the light inside, and the light guide back corresponds to the periphery of the emblem body. And a reflecting surface that reflects the light guided into the light guide and transmits the light toward the outer surface of the light guide.

  According to the present invention, when the light source is turned on at night, the emitted light is taken in by the light receiving portion of the light guide and guided to the inside of the light guide, and reflected by the reflecting surface to emit light around the emblem body.

  Thereby, the outline line of the emblem main body can be clearly displayed, and the emblem main body can appear in a relief shape to enhance the design effect.

  On the other hand, during the daytime, the light source exists in the projection plane of the emblem body and is not seen through from the outside. Therefore, it is possible to avoid impairing the appearance without requiring a special shielding structure or the like.

The top view of the emblem for vehicles concerning the present invention. The disassembled perspective view of the vehicle emblem shown in FIG. Sectional drawing in alignment with the AA of FIG. The enlarged view of the B range part of FIG. The enlarged view of the C range part of FIG.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  The vehicle emblem of the embodiment shown in FIG. 1 to FIG. 3 includes a housing 1, a light guide 2 attached to one open side of the housing 1, and a lamp chamber separated by the housing 1 and the light guide 2. 3 is provided with a light source 4 disposed in the interior 3 and an emblem body 5 mounted on the outer surface of the light guide 2.

  The housing 1 is formed in a tray shape with an appropriate synthetic resin material. An annular rib wall 11 having a projecting height lower than that of the peripheral wall is integrally formed on the bottom wall of the housing 1 along the peripheral wall. In addition, a plurality of mounting seats 12 for placing a circuit board 41, which will be described later, are formed on the bottom wall in a stepped manner. The mounting seat 12 is formed in a horizontally long rectangular shape, and a pair of pins 13 project from each seating surface. Furthermore, a harness wiring hole 14 for inserting a harness 42 for energization to the circuit board 41 and a vent hole 15 are provided in the central portion of the bottom wall, and the harness wiring hole 14 is used for sealing. A grommet 16 is fitted and disposed, and a filter 17 for dust removal and waterproofing is attached to the vent hole 15.

  The light guide 2 is formed into a plate shape with a transparent synthetic resin material, and is inscribed and fitted into one open side of the housing 1 as shown in FIG. The lamp chamber 3 is hermetically sealed by ultrasonic welding. In order to stably perform this ultrasonic welding, a sharp protrusion is provided on either one of the surfaces to be welded.

  The emblem body 5 includes a frame portion 51 and a marking formation portion 52 for figures, characters, symbols, and the like integrally connected to the inner peripheral side of the frame portion 51.

  The emblem main body 5 may be made of, for example, a metal or a synthetic resin that can obtain a metallic luster on the surface side by performing metal vapor deposition on the back surface.

  The emblem body 5 is bonded and fixed to the outer surface of the light guide 2 by a double-sided adhesive tape 53 having the same shape bonded to the back surface thereof.

  In the present embodiment, the light source 4 uses a plurality of light emitting elements such as LEDs. For example, the light emitting elements 4 are arranged in a row at a required interval on a circuit board 41 that is formed in a slightly similar shape that is slightly smaller than the sign forming portion 52 of the emblem body 5. By connecting a harness 42 to the circuit board 41 and connecting it to a power supply side switch circuit (lamp switch circuit) via a connector 43 of the terminal, power can be supplied to the light emitting element 4 to control light emission.

  The circuit board 41 is disposed in the projection plane of the marking forming portion 52 of the emblem body 5, and the side edge of the circuit board 41 is pinned between the pair of pins 13 on each mounting seat 12 on the bottom wall of the housing 1. It is fixed by heat caulking.

  On the back surface of the light guide 2, corresponding to each of the plurality of light emitting elements 4, a light receiving portion 21 that takes in the emitted light of the light emitting element 4 and guides it to the inside is recessed.

  Further, on the back surface of the light guide 2, a reflection that reflects light guided inward from the light receiving portion 21 and transmits the light toward the outer surface of the light guide 2 corresponding to the periphery of the emblem body 5. A surface 22 is formed.

  The reflective surface 22 is formed by providing a wedge-shaped groove on the back surface of the light guide 2, and the reflective surface 22 is preferably set at an angle of 45 °.

  In the present embodiment, the reflecting surface 22 is formed in a line along the inner and outer peripheral edges of the frame portion 51 of the emblem body 5 and the entire peripheral edge of the marking forming portion 52.

  Further, the peripheral surface of the concave portion forming the light receiving portion 21 is formed as a prism surface 23 as shown in FIG. 5 so that the emitted light of the light emitting element 4 is diffused into the light guide 2.

  Although not shown, the reflecting surface 22 is also formed as a prism surface 23 in the same manner as the light receiving unit 21 so that the light guided into the light guide 2 is diffused and reflected.

  The prism surface 23 is formed as a stop pattern in which unevenness is gathered, and it is desirable to change the stop pattern density so that the light receiving portion 21 and the reflection surface 22 have the same brightness of the guided light.

  The vehicle emblem is fixed to a vehicle body outer plate such as an engine hood, a trunk lid, and a fender panel of an automobile. In the present embodiment, both sides of the same material as that used for bonding the emblem body 5 to the back of the housing 1 are used. Adhesive tape 6 is attached, and the double-sided adhesive tape 6 is adhesively fixed to the vehicle body outer plate.

  In addition to the harness routing hole 61 through which the harness 42 is inserted, the double-sided adhesive tape 6 is formed with a ventilation slit 62 connected to the ventilation hole 15 in the bottom wall of the housing 1, and the rear surface of the housing 1 is formed by the ventilation slit 62. An air passage is secured between the light emitting device 4 and the outer plate of the vehicle body so that hot air in the housing 1 generated by lighting of the light emitting element 4 can be ventilated.

  According to the vehicle emblem of the present embodiment configured as described above, when the light emitting element 4 is turned on at night, the emitted light is captured by the light receiving unit 21 of the light guide 2.

  The light receiving portion 21 is formed as a concave portion corresponding to the light emitting element 4 on the back surface of the light guide 2, and the emitted light of the light emitting element 4 taken into the light receiving portion 21 is indicated by an arrow a in FIG. 5. Light is guided radially inside the light guide 2.

  The light guided to the inside of the light guide 2 is reflected by the reflecting surface 22 formed corresponding to each peripheral edge of the frame portion 51 and the sign forming portion 52 of the emblem body 5 and is shown by the arrows in FIGS. As shown in b, the light is transmitted toward the outer surface of the light guide to emit light around the frame portion 51 and the sign forming portion 52.

  Thereby, the outline line of the frame part 51 of the emblem main body 5 and the marking formation part 52 can be displayed clearly, and this emblem main body 5 can be made to appear in a relief shape, and the design effect can be heightened.

  In particular, the light emitted from the light emitting element 4 is dispersed and guided in the radial direction in the light guide 2 as described above, so that the relief-like appearance illuminance due to the reflected light on each reflecting surface 22 is made uniform. A lighting effect without light and dark deviation can be obtained.

  Further, since the light emitting element 4 is disposed in the projection plane of the emblem body 5, light emission does not appear to be scattered from the outside during lighting. Similarly, during the daytime, the light emitting element 4 is not seen through from the outside. As a result, it is possible to avoid impairing the appearance without requiring a special shielding structure or the like.

  Further, in the present embodiment, the reflecting surface 22 is formed in a linear shape along the periphery of the frame portion 51 and the marking forming portion 52 of the emblem body 5, so that the outline line is illuminated and revealed in a relief shape. The sharpness can be further increased.

  Furthermore, since the light receiving portion 21 and / or the reflecting surface 22 are formed with a prism surface 23 that diffuses and guides the light emitted from the light emitting element 4, the above-described relief-like appearance illuminance can be made more uniform. Can be done.

DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Light guide 3 ... Lamp chamber 4 ... Light source 5 ... Emblem main body 21 ... Light-receiving part 22 ... Reflecting surface 23 ... Prism surface

Claims (4)

A housing fixed to the outer surface of the vehicle body panel;
A light guide that is mounted on one open side of the housing and separates the lamp chamber;
An emblem body mounted on the outer surface of the light guide;
A light source disposed in the projection plane of the emblem body in the lamp chamber,
The light guide is formed on the back surface corresponding to the light source, and receives a light emitted from the light source and guides it to the inside,
A reflection surface formed on the back surface of the light guide corresponding to the periphery of the emblem body, and reflecting the light guided into the light guide and transmitting the light toward the outer surface of the light guide. Characteristic vehicle emblem.   2. The vehicle emblem according to claim 1, wherein the reflecting surface is formed in a line shape along a peripheral edge of the emblem body. 3. The vehicle emblem according to claim 1, wherein the light receiving portion of the light guide includes a prism surface that diffuses light emitted from the light source into the light guide. 4. The reflective surface of the light guide is formed as a prism surface that diffuses and reflects the light guided into the light guide, according to any one of claims 1 to 3. Vehicle emblem.

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