Vehicle light assembly

A component and lamp technology, which is applied in the direction of headlights, vehicle parts, household components, etc., can solve problems such as failure of bonding, and achieve the effects of improving bonding strength, increasing bonding width, and increasing bonding strength

Inactive Publication Date: 2004-01-14
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the edge surface 2b or the receiving surface 4a of the sealing foot 2a has a wavy irregular shape due to insufficient smoothness, a gap will be generated in the area between the two, and this is the case even under the application of pressure, then will cause the combination to fail

Method used

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  • Vehicle light assembly
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Embodiment Construction

[0029] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] figure 1 is a side sectional view of a vehicle lamp of a preferred embodiment of the invention placed top up. figure 2 is shown in detail figure 1 View of Part II.

[0031] The vehicle light assembly 10 of the preferred embodiment is in the form of an indicator light such as a tail light. The lamp has a lamp body 14 and a headlight glass 16 directly bonded to the lamp body 14, a light source bulb 12 extending vertically (in the longitudinal direction relative to the lamp body assembly) is installed on the lamp reference axis Ax of the lamp body 14, The headlight glass 16 is directly bonded to the lamp body 14 .

[0032] The headlight glass 16 is made of a transparent thermoplastic resin material such as PMMA or PC. The outer periphery of the headlight glass 16 is provided with a sealing foot 16a projecting downward over the entir...

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Abstract

A vehicular lamp in which bonding failure between a front lens and a lamp body is prevented while enhancing the bonding strength and improving the quality of the outer appearance around the bonded surface therebetween. An edge surface of a seal leg of the front lens and a receiving surface of a lamp body are bonded together by laser beam welding so as to improve the quality of the outer appearance of the portion around the bonded surfaces. The bonded surface is inclined at a predetermined angle with respect to a plane perpendicular to the bonding direction. Even if the edge surface of the seal leg or the receiving surface has a wave-like irregularity such that gaps are created in areas therebetween, the pressure in the bonding direction acting on the members to be bonded causes slippage between them, resulting in sealing the gaps. The beam spot diameter of a laser beam irradiated onto the receiving surface is increased in an amount corresponding to the angle of inclination of the bonded surface, thus increasing the bonding width and enhancing the bonding strength.

Description

technical field [0001] The present invention relates to a vehicle light assembly and a method of manufacturing the vehicle light assembly, wherein the headlight glass and the lamp body are directly bonded together. Background technique [0002] In general, two types of methods have been known to combine the headlight glass and the lamp body of a vehicle lamp, that is, indirect bonding through a sealing element (for example, a heat-melt sealing method), and by bonding the two elements together. Direct bonding against each other (eg, hot plate welding, vibration welding, ultrasonic welding, etc.). [0003] As a direct bonding method, laser beam welding is known in other technical fields. This method can be applied to the combination of headlight glass and lamp body by the procedure described below (see commonly assigned US patent application Ser. No. 09 / 548,361). [0004] refer to Figure 7 , a seal foot 2a extending in an outward direction is formed along the outer peripher...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10B23K26/02B23K26/21B23K26/28B23K26/32B23K101/36B29C65/00B29C65/16B29L11/00F21S41/00F21S43/00F21S45/00F21V17/00F21V17/10F21V31/03F21W103/00F21W104/00F21W105/00
CPCB29C65/1687B29C66/12464B29K2033/12B29C65/1635F21S48/337B29K2995/0072B29C66/114B29L2031/3055B29K2055/02B29C66/12463B29C65/1654B29L2031/747B29C66/131B29C66/342B29C66/12449B29K2101/12F21S48/255B29K2069/00B29C66/542B29C66/12469B29C66/12261B29C66/863B29C65/169F21V17/101B23K26/28B29C66/836B29C66/8322B29C66/73921B29K2995/0025B29K2995/0027B29C66/71B29C66/712B29C66/652B29C66/73361B29C66/73365F21S43/51F21S45/37B29L2031/30B29K2025/08
Inventor 秋山一夫杉山富士彦
Owner KOITO MFG CO LTD
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