JP5611624B2 - Vehicle lighting - Google Patents

Vehicle lighting Download PDF

Info

Publication number
JP5611624B2
JP5611624B2 JP2010055427A JP2010055427A JP5611624B2 JP 5611624 B2 JP5611624 B2 JP 5611624B2 JP 2010055427 A JP2010055427 A JP 2010055427A JP 2010055427 A JP2010055427 A JP 2010055427A JP 5611624 B2 JP5611624 B2 JP 5611624B2
Authority
JP
Japan
Prior art keywords
housing
lens
rib
contact surface
peripheral edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2010055427A
Other languages
Japanese (ja)
Other versions
JP2011192417A (en
Inventor
和晃 鉾田
和晃 鉾田
吉裕 財津
吉裕 財津
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stanley Electric Co Ltd
Original Assignee
Stanley Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Priority to JP2010055427A priority Critical patent/JP5611624B2/en
Publication of JP2011192417A publication Critical patent/JP2011192417A/en
Application granted granted Critical
Publication of JP5611624B2 publication Critical patent/JP5611624B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
    • B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
    • B29C65/7829—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being integral with at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
    • B29C66/652—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool moving the welding tool around the fixed article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B29C66/712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/747—Lightning equipment

Description

本発明は、車両用のヘッドランプ、テールランプ等の車両用灯具に関するものであり、詳細には、これら車両用灯具に使用される樹脂製のハウジングに透明樹脂製のレンズが溶着によって固定された車両用灯具に関するものである。   The present invention relates to a vehicular lamp such as a head lamp and a tail lamp for a vehicle, and more specifically, a vehicle in which a transparent resin lens is fixed to a resin housing used for the vehicular lamp by welding. It relates to a lighting fixture.

従来のこの種のレンズとハウジングとが溶着によって固定された車両用灯具は、例えば、特開平１０−３１０６７６号（以下特許文献１）に示されている。この特許文献１の車両用灯具は、レンズの周縁端部とハウジングの周縁端部との間に温度１５０度〜３５０度の熱板を挟み、数秒間加熱、溶融し、熱板を取り去った後、ただちにレンズ周縁端部とハウジング周縁端部とを互いに押圧することによって溶着し、レンズとハウジングとを接合、一体化（熱板溶着）したものである。   A conventional vehicular lamp in which a lens of this type and a housing are fixed by welding is disclosed in, for example, Japanese Patent Laid-Open No. 10-310676 (hereinafter referred to as Patent Document 1). In the vehicular lamp of Patent Document 1, a hot plate having a temperature of 150 to 350 degrees is sandwiched between a peripheral edge of a lens and a peripheral edge of a housing, heated and melted for several seconds, and the hot plate is removed. The lens peripheral edge and the housing peripheral edge are immediately welded to each other, and the lens and the housing are joined and integrated (hot plate welding).

また、特開２００３−１２３５１２号（以下特許文献２）の車両用灯具では、レンズをレーザ光に対して透明な樹脂材料によって形成すると共に、ハウジングをレーザ光に対して吸収性のある樹脂材料によって形成し、これらレンズの周縁端部とハウジングの周縁端部とを当接させた状態でこの当接面に対しレーザ光を照射することで、ハウジングに到達したレーザ光がハウジングに吸収されて熱に変換され、この熱でハウジングとレンズの当接部が溶融することで、レンズとハウジングとを接合、一体化（レーザ溶着）したものである。   In the vehicular lamp disclosed in Japanese Patent Application Laid-Open No. 2003-123512 (hereinafter referred to as Patent Document 2), the lens is formed of a resin material that is transparent to laser light, and the housing is formed of a resin material that absorbs laser light. By forming and irradiating laser light onto the contact surface in a state where the peripheral edge of the lens and the peripheral edge of the housing are in contact with each other, the laser light reaching the housing is absorbed by the housing and heated. The contact portion between the housing and the lens is melted by this heat, so that the lens and the housing are joined and integrated (laser welding).

特開平１０−３１０６７６号公報Japanese Patent Laid-Open No. 10-310676 特開２００３−１２３５１２号公報JP 2003-123512 A

しかしながら、前記した従来の車両用灯具のレンズとハウジングの溶着部の構造では、図４に示すように、レンズ９２の周縁端部に形成されたシールリブ９２ａ先端とハウジング９３の周縁端部９３ａとが平坦面どおしの溶着となり、当接部（溶着部）付近Ａにバリや糸引きが発生し、この部分がレンズ意匠面側から観察され、外観上の見映えが悪く、商品価値の低下を招くといった課題があった。   However, in the structure of the lens and housing welded portion of the conventional vehicle lamp described above, the tip end of the seal rib 92a formed at the peripheral end portion of the lens 92 and the peripheral end portion 93a of the housing 93 are shown in FIG. The flat surface is welded, and burrs and stringing occur near the contact part (welded part) A. This part is observed from the lens design surface side, the appearance is poor, and the product value decreases. There was a problem of inviting.

本発明は前記した課題を解決し、簡単な構成により、レンズとハウジングとの溶着部付近の外観上の見映えの悪化を防ぐ溶着部構造を備えた車両用灯具を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and to provide a vehicular lamp provided with a welded portion structure that prevents deterioration in appearance in the vicinity of a welded portion between a lens and a housing with a simple configuration. .

上記課題を解決するために、本発明は、レーザ光に対して吸光性を有する樹脂材料によって形成され、前面に灯室を構成する開口を有するハウジングと、前記レーザ光に対して透光性を有する樹脂材料からなり、周縁端部にシールリブが形成され、前記ハウジングの開口を覆うレンズとを備え、前記レーザ光を用いたレーザ溶着によって前記ハウジングの周縁と前記シールリブとを接合、一体化して前記灯室が形成されている車両用灯具において、前記ハウジングの周縁には、前記レンズのシールリブの先端と当接する当接面と、前記当接面より少なくとも灯室内の側に前記当接面に沿って全周に亘り突設している壁状リブとが、形成された、ハウジング周縁端部を前面側に有しており、前記シールリブの先端と前記ハウジング周縁端部は、前記当接面で当接させた状態で前記レンズを通してレーザ光が前記当接面に照射されて接合、一体化され、前記ハウジング周縁端部の当接面には、凸状の溶着部が全周に亘って形成されており、前記レーザ溶着による接合、一体化を行う前の状態においては、前記シールリブの高さと前記溶着部の高さの和が、前記壁状リブの高さより大きくなるように形成され、前記レーザ溶着による接合、一体化を行った後の状態においては、前記シールリブの先端と前記溶着部の溶着により沈み込んで、前記ハウジングの壁状リブの先端部が前記レンズに当接し、前記ハウジングの壁状リブの先端部が前記レンズに当接した状態で、前記灯室が構成されていることを特徴とする車両用灯具を提供することで課題を解決するものである。

In order to solve the above-described problems, the present invention provides a housing made of a resin material that absorbs laser light and has an opening that forms a lamp chamber on the front surface, and is transparent to the laser light. a resin material having, sealing ribs are formed on the peripheral edge, and a lens covering the opening of the housing, the peripheral edge and bonding the seal ribs of the housing by laser welding using the laser beam, integral with the in the vehicle lamp lighting chamber is formed, the periphery of the housing, a tip abutting contact surface of the seal ribs of the lens, the along the abutment surface on the side of at least the lamp chamber from the abutment surface a wall-like rib which is projected over the whole circumference Te was formed, a housing peripheral edge has on the front side, the tip and the housing perimeter edge of the sealing rib is Serial abutment surface at a junction laser light through the lens in a state of being contact is irradiated on the abutment surface, are integrated, the abutment surface of the housing perimeter edge is convex welded portion is all It is formed over the circumference, and in a state before joining and integration by the laser welding, the sum of the height of the seal rib and the height of the welded portion is larger than the height of the wall-shaped rib. In the state after joining and integration by laser welding, the tip end of the seal rib and the welded portion sink, and the tip of the wall-like rib of the housing touches the lens. contact and, in a state where the top portion of the wall-shaped rib of the housing is in contact with the lens, it is to solve the problem by providing a vehicle lamp, wherein the lamp chamber is formed .

以上のように本発明によれば、車両用灯具のハウジングの周縁端部には、ハウジング周縁端部とレンズのシールリブとの当接面より少なくとも灯室内側にこの当接面に沿ってリブが全周に亘り突設されていることにより、レンズとハウジングとの溶着部付近の外観上の見映えの悪化を防ぐ溶着部構造を備えた車両用灯具が提供される。   As described above, according to the present invention, the peripheral edge of the housing of the vehicular lamp is provided with a rib along the contact surface at least on the lamp chamber side from the contact surface between the peripheral edge of the housing and the seal rib of the lens. Protruding over the entire circumference provides a vehicular lamp that has a welded portion structure that prevents deterioration in appearance in the vicinity of the welded portion between the lens and the housing.

図１は本発明の車両用灯具の第一実施形態のレンズとハウジングの溶着部構造を示す説明図である。FIG. 1 is an explanatory view showing a welded portion structure of a lens and a housing of a first embodiment of a vehicular lamp according to the present invention. 図２は本発明の車両用灯具の第二実施形態のレンズとハウジングの溶着部構造を示す説明図である。FIG. 2 is an explanatory view showing the structure of the welded portion of the lens and housing of the second embodiment of the vehicular lamp of the present invention. 図３は本発明の車両用灯具の第三実施形態のレンズとハウジングの溶着部構造を示す説明図である。FIG. 3 is an explanatory view showing the structure of the welded portion of the lens and housing of the third embodiment of the vehicular lamp of the present invention. 図４は従来の車両用灯具のレンズとハウジングの溶着部構造を示す説明図である。FIG. 4 is an explanatory view showing a welded structure of a lens and housing of a conventional vehicle lamp.

以下、本発明の車両用灯具のレンズとハウジングの溶着部構造について、添付図面を参照して説明する。   Hereinafter, a welded portion structure of a lens and a housing of a vehicle lamp according to the present invention will be described with reference to the accompanying drawings.

図１は本発明の車両用灯具の第一実施形態のレンズとハウジングの溶着部構造を示す説明図であり、従来と同様にレンズ２はレーザ光に対して透光性を有する透明な樹脂材料によって形成され、ハウジング３はレーザ光に対して吸収性のある樹脂材料によって形成されている。また、ハウジング３は前面に開口を有していて、ハウジング３の開口を覆うようにレンズ２が取り付けられて車両用灯具の灯室１が形成される。このとき、レンズ２の周縁端部にはシールリブ２ａが設けられていて、このシールリブ２ａの先端とハウジング３の周縁端部３ａとを当接させた状態で当接面Ｂに対しレーザ光Ｌを照射することで、ハウジング３とレンズ２とをレーザ溶着によって接合、一体化することで車両用灯具の灯室１が形成される。   FIG. 1 is an explanatory view showing a welded portion structure of a lens and a housing of a first embodiment of a vehicular lamp according to the present invention, and a lens 2 is a transparent resin material having translucency with respect to laser light as in the prior art. The housing 3 is made of a resin material that absorbs laser light. The housing 3 has an opening on the front surface, and the lens 2 is attached so as to cover the opening of the housing 3 to form a lamp chamber 1 of a vehicular lamp. At this time, a seal rib 2 a is provided at the peripheral edge of the lens 2, and the laser beam L is applied to the contact surface B in a state where the tip of the seal rib 2 a and the peripheral edge 3 a of the housing 3 are in contact. By irradiating, the housing 3 and the lens 2 are joined and integrated by laser welding, whereby the lamp chamber 1 of the vehicular lamp is formed.

ここで、レンズ２はレーザ光に対して透光性を有する透明な樹脂材料によって形成されているものであり、レーザ光に対して透光性を有する透明な樹脂材料としては、ポリカーボネート（ＰＣ）、ポリメチルメタクリレート（ＰＭＭＡ）などがある。また、ハウジング３は、レーザ光に対して吸光性を有する樹脂材料によって形成されているものであり、レーザ光に対して吸光性を有する樹脂材料としては、アクリロニトリロスチレンアクリレート（ＡＳＡ）などがある。   Here, the lens 2 is formed of a transparent resin material that is transparent to laser light. As a transparent resin material that is transparent to laser light, polycarbonate (PC) is used. And polymethyl methacrylate (PMMA). The housing 3 is formed of a resin material that absorbs light with respect to laser light. Examples of the resin material that absorbs light with respect to laser light include acrylonitrile styrene acrylate (ASA). is there.

そして、レンズ２周縁端部のシールリブ２ａとハウジング３の周縁端部３ａとを当接面Ｂで当接させ、この当接面ＢにレーザＬを照射して溶融し、加圧しながらレーザＬをレンズシールリブ２ａの外周方向に沿って走査することにより、レンズ２とハウジング３とが溶着され、車両用灯具の灯室１が形成される。   Then, the seal rib 2a at the peripheral edge of the lens 2 and the peripheral edge 3a of the housing 3 are brought into contact with the contact surface B, and the contact surface B is melted by irradiating with the laser L. By scanning along the outer peripheral direction of the lens seal rib 2a, the lens 2 and the housing 3 are welded to form the lamp chamber 1 of the vehicular lamp.

さらに、ハウジング３の周縁端部３ａには、ハウジング周縁端部３ａとレンズ２のシールリブ２ａとの当接面Ｂの灯室内と灯室外の両側に当接面Ｂに沿って壁状のリブ３ｂが全周に亘り突設されていて、リブ３ｂによってレンズ２とハウジング３とのレーザ溶着時の溶着部となる当接面Ｂをハウジング３の周縁端部３ａ全周に亘って囲うことで、溶着時に発生するバリの流出を抑えると共に、レンズ意匠面側から観たときにリブ３ｂで溶着部が遮蔽されて、バリが観察されることはない。   Further, the peripheral edge 3a of the housing 3 has a wall-shaped rib 3b along the contact surface B on both sides of the contact surface B between the housing peripheral end 3a and the seal rib 2a of the lens 2 outside the lamp chamber. Is protruded over the entire circumference, and the rib 3b surrounds the contact surface B, which serves as a welding portion at the time of laser welding of the lens 2 and the housing 3, over the entire circumference edge 3a of the housing 3. While suppressing the outflow of the burr | flash generate | occur | produced at the time of welding, a welding part is shielded by the rib 3b when it sees from the lens design surface side, and a burr | flash is not observed.

図２は本発明の車両用灯具の第二実施形態のレンズとハウジングの溶着部の構造を示す説明図であり、この第二実施形態では、ハウジング周縁端部１３ａの当接面Ｂに沿った灯室内の側のみにリブ１３ｂが突設されている。これは、レーザ溶着後にバリの除去ができない灯室内の側のみにリブ１３ｂを形成し、灯室外の側はレーザ溶着後にバリを外側から除去することで、バリによる見栄え悪化を防ぐものである。そのため、リブ１３ｂは少なくともレーザ溶着後にバリの除去ができない灯室内の側のみに形成すれば良い。   FIG. 2 is an explanatory view showing the structure of the welded portion of the lens and housing of the second embodiment of the vehicular lamp according to the present invention. In this second embodiment, it is along the contact surface B of the housing peripheral edge portion 13a. A rib 13b is projected only on the side of the lamp chamber. The rib 13b is formed only on the side of the lamp chamber where the burr cannot be removed after laser welding, and the burr is removed from the outside after the laser welding on the side outside the lamp chamber, thereby preventing appearance deterioration due to the burr. Therefore, the rib 13b may be formed only at least in the lamp chamber where burrs cannot be removed after laser welding.

図３は本発明の車両用灯具の第三実施形態のレンズとハウジングの溶着部の構造を示す説明図であり、ハウジング２３の周縁端部２３ａには、レンズ２２のシールリブ２２ａとの当接面Ｂに凸状溶着部２３ｃを全周に亘って形成すると共に、シールリブ２２ａの高さａと凸状溶着部２３ｃの高さｂの和（ａ＋ｂ）は、リブ２３ｂの高さｈより大きくなるように形成し、シールリブ２２ａの高さａと凸状溶着部２３ｃの高さｂの和（ａ＋ｂ）とリブ２３ｂの高さｈとの差（ａ＋ｂ−ｈ）をレーザ溶着時の沈み込み量として、リブ２３ｂの高さｈが設定されている。   FIG. 3 is an explanatory view showing the structure of the welded portion of the lens and housing of the third embodiment of the vehicular lamp according to the present invention. The peripheral edge 23 a of the housing 23 is in contact with the seal rib 22 a of the lens 22. The convex welded portion 23c is formed in B over the entire circumference, and the sum (a + b) of the height a of the seal rib 22a and the height b of the convex welded portion 23c is larger than the height h of the rib 23b. The difference (a + b−h) between the sum (a + b) of the height a of the seal rib 22a and the height b of the convex welded portion 23c and the height h of the rib 23b is defined as a sinking amount at the time of laser welding. The height h of the rib 23b is set.

これにより、リブ２３ｂは溶着部のバリをレンズ意匠面側から観察されないようにすると共に、レーザ溶着時にリブ２３ｂの先端部がレンズ２２に当接することで、レーザ溶着時の沈み込み量が制御されるストッパとして機能も果たすものとなっている。通常、レーザ溶着の場合、樹脂の溶かし込み量は０．２ｍｍ以下程度で行い、好ましくは０．１ｍｍ以下の溶かし込みによって行う。   As a result, the rib 23b prevents the flash of the welded portion from being observed from the lens design surface side, and the tip of the rib 23b contacts the lens 22 during laser welding, thereby controlling the amount of sinking during laser welding. It also serves as a stopper. Usually, in the case of laser welding, the amount of resin penetration is about 0.2 mm or less, preferably 0.1 mm or less.

したがって、レーザ溶着時の沈み込み量として、シールリブ２２ａの高さａと凸状溶着部２３ｃの高さｂの和（ａ＋ｂ）とリブ２３ｂの高さｈとの差（ａ＋ｂ−ｈ）からリブ２３ｂの高さｈを適宜設定することで、上記所望の沈み込み量となるように調整できる。   Therefore, as a sinking amount at the time of laser welding, the rib 23b is determined from the difference (a + b−h) between the sum (a + b) of the height a of the seal rib 22a and the height b of the convex welded portion 23c and the height h of the rib 23b. By appropriately setting the height h, it can be adjusted so as to achieve the desired amount of sinking.

さらに、凸状溶着部２３ｃの両側にレーザ溶着時のストッパとしての機能を有するリブ２３ｂが、ハウジング２３の周縁端部２３ａの全周に亘って同じ高さで形成されることによって、ハウジング２３に対するレンズ２２取り付けの平衡度はより向上するものとなる。   Furthermore, ribs 23b having a function as a stopper at the time of laser welding are formed on both sides of the convex welded portion 23c at the same height over the entire circumference of the peripheral edge portion 23a of the housing 23. The balance of the lens 22 attachment is further improved.

こうした溶着部構造は、従来の熱板溶着では、ハウジング２３の凸状溶着部２３ｃに熱板を直接当てられないため溶着が不可能であるが、レーザ溶着によって溶着が可能になる。   Such a welded portion structure cannot be welded by conventional hot plate welding because the hot plate cannot be directly applied to the convex welded portion 23c of the housing 23, but can be welded by laser welding.

以上実施例に沿って説明したが本発明はこれら限定されるものではなく、レンズはレーザ光に対して透光性を有する樹脂材料であれば良く、また、ハウジングはレーザ光に対して吸光性を有する樹脂材料でれば良く、カーボンブラック等の着色料が添加されたポリカーボネート等の樹脂部材で形成されていても良い。   Although the present invention has been described above with reference to the embodiments, the present invention is not limited to these, and the lens may be a resin material that is transparent to laser light, and the housing is light-absorbing to laser light. The resin material may be formed of a resin member such as polycarbonate to which a colorant such as carbon black is added.

本発明は、車両用のヘッドランプ、テールランプ等の車両用灯具に適用することができ、レンズとハウジングとの溶着部付近の外観上の見映えの悪化を防ぐ溶着部構造を備えた車両用灯具が提供される。   INDUSTRIAL APPLICABILITY The present invention can be applied to a vehicle lamp such as a head lamp and a tail lamp for a vehicle, and has a welded portion structure that prevents deterioration in appearance in the vicinity of the welded portion between the lens and the housing. Is provided.

１ 車両用灯具（灯室）
２ レンズ
２ａ シールリブ
３ ハウジング
３ａ 周縁端部
３ｂ リブ
１１ 車両用灯具（灯室）
１２ レンズ
１２ａ シールリブ
１３ ハウジング
１３ａ 周縁端部
１３ｂ リブ
２１ 車両用灯具（灯室）
２２ レンズ
２２ａ シールリブ
２３ ハウジング
２３ａ 周縁端部
２３ｂ リブ
２３ｃ 凸状溶着部
Ｂ 当接面（レーザ溶着部）
Ｌ レーザ光 1 Vehicle lamps (light room)
2 Lens 2a Seal rib 3 Housing 3a Peripheral edge 3b Rib 11 Vehicle lamp (lamp room)
12 Lens 12a Seal rib 13 Housing 13a Peripheral edge 13b Rib 21 Vehicle lamp (lamp room)
22 Lens 22a Seal rib 23 Housing 23a Peripheral edge 23b Rib 23c Convex weld B Contact surface (laser weld)
L Laser light

Claims (2)

レーザ光に対して吸光性を有する樹脂材料によって形成され、前面に灯室を構成する開口を有するハウジングと、
前記レーザ光に対して透光性を有する樹脂材料からなり、周縁端部にシールリブが形成され、前記ハウジングの開口を覆うレンズとを備え、
前記レーザ光を用いたレーザ溶着によって前記ハウジングの周縁と前記シールリブとを接合、一体化して前記灯室が形成されている車両用灯具において、
前記ハウジングの周縁には、前記レンズのシールリブの先端と当接する当接面と、前記当接面より少なくとも灯室内の側に前記当接面に沿って全周に亘り突設している壁状リブとが、形成された、ハウジング周縁端部を前面側に有しており、
前記シールリブの先端と前記ハウジング周縁端部は、前記当接面で当接させた状態で前記レンズを通してレーザ光が前記当接面に照射されて接合、一体化され、
前記ハウジング周縁端部の当接面には、凸状の溶着部が全周に亘って形成されており、
前記レーザ溶着による接合、一体化を行う前の状態においては、前記シールリブの高さと前記溶着部の高さの和が、前記壁状リブの高さより大きくなるように形成され、
前記レーザ溶着による接合、一体化を行った後の状態においては、前記シールリブの先端と前記溶着部の溶着により沈み込んで、前記ハウジングの壁状リブの先端部が前記レンズに当接し、
前記ハウジングの壁状リブの先端部が前記レンズに当接した状態で、前記灯室が構成されていることを特徴とする車両用灯具。 A housing formed of a resin material having absorptivity with respect to the laser light and having an opening constituting a lamp chamber on the front surface ;
A resin material having a light-transmitting property with respect to the laser beam, the sealing ribs are formed on the peripheral edge, and a lens covering the opening of the housing,
In laser welding by bonding the the edge of the housing seal ribs, integral with the vehicle lamp wherein the lamp chamber is formed using the laser beam,
At the periphery of the housing, a contact surface that contacts the tip of the seal rib of the lens, and a wall shape that protrudes over the entire circumference along the contact surface at least on the lamp chamber side from the contact surface. The rib has a housing peripheral edge formed on the front side,
It said housing perimeter edge and the tip of the sealing rib, the abutment surface at the joint is irradiated to the laser beam the contact surface through the lens in a state of being contact are integrated,
On the contact surface of the peripheral edge of the housing , a convex weld is formed over the entire circumference,
In the state before joining and integration by the laser welding, the sum of the height of the seal rib and the height of the welded portion is formed to be larger than the height of the wall-shaped rib,
Joined by the laser welding, in the state after the integrated sinks a tip of the sealing rib by welding of the welded portion, the tip portion of the wall-shaped rib of said housing to abut against the lens,
The vehicular lamp is characterized in that the lamp chamber is configured in a state in which a tip of a wall-shaped rib of the housing is in contact with the lens . 前記ハウジング周縁端部には、前記当接面の灯室外にも前記当接面に沿ってリブが全周に亘り突設されていることを特徴とする請求項１記載の車両用灯具。 Wherein the housing peripheral edge, a vehicle lamp according to claim 1, wherein said ribs along said abutment surface to outside the lamp chamber of the contact surface is projected over the entire circumference.
JP2010055427A 2010-03-12 2010-03-12 Vehicle lighting Active JP5611624B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010055427A JP5611624B2 (en) 2010-03-12 2010-03-12 Vehicle lighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010055427A JP5611624B2 (en) 2010-03-12 2010-03-12 Vehicle lighting

Publications (2)

Publication Number Publication Date
JP2011192417A JP2011192417A (en) 2011-09-29
JP5611624B2 true JP5611624B2 (en) 2014-10-22

Family

ID=44797128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010055427A Active JP5611624B2 (en) 2010-03-12 2010-03-12 Vehicle lighting

Country Status (1)

Country Link
JP (1) JP5611624B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5553155B2 (en) * 2010-06-08 2014-07-16 スタンレー電気株式会社 Vehicle lamp manufacturing method using laser welding
KR101845538B1 (en) * 2011-11-22 2018-04-04 현대모비스 주식회사 Lamp apparatus of an automobile and manufacturing method thereof
JP2014063653A (en) * 2012-09-21 2014-04-10 Isuzu Motors Ltd Manufacturing method of lamp
JP2014220384A (en) * 2013-05-08 2014-11-20 株式会社デンソー Electronic circuit device and method of manufacturing the same
CN104359066B (en) * 2014-10-30 2019-12-20 力帆实业(集团)股份有限公司 Motorcycle LED headlamp
JP5996024B1 (en) * 2015-03-18 2016-09-21 大豊工業株式会社 Synthetic resin welded body and method for producing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3973792B2 (en) * 1999-04-12 2007-09-12 株式会社小糸製作所 Manufacturing method of vehicular lamp
JP3847517B2 (en) * 2000-03-30 2006-11-22 スタンレー電気株式会社 Method of welding plastic parts by light energy
JP3941947B2 (en) * 2003-05-22 2007-07-11 スタンレー電気株式会社 Welding method for vehicle lamp
JP2005254481A (en) * 2004-03-09 2005-09-22 Toyota Motor Corp Connection method and connected body

Also Published As

Publication number Publication date
JP2011192417A (en) 2011-09-29

Similar Documents

Publication Publication Date Title
JP5611624B2 (en) Vehicle lighting
JP4716512B2 (en) VEHICLE LIGHT AND METHOD FOR PRODUCING VEHICLE LIGHT
US6592239B1 (en) Vehicular lamp and method for producing same
JP4678829B2 (en) Manufacturing method of vehicular lamp
JP4318503B2 (en) Vehicular lamp and manufacturing method thereof
JP2008262876A (en) Lamp tool for vehicle
JP2001243812A (en) Lighting fixture for vehicle and its manufacturing method
JP2007210165A (en) Resin welding method using laser beam and resin welding apparatus
JP2005339873A (en) Manufacturing method of vehicular lamp
JP4864913B2 (en) Watertight structure of waterproof case
JP5941714B2 (en) Manufacturing method of vehicular lamp
JP2005085567A (en) Vehicular lamp
JP2005166359A (en) Lamp body for vehicular lighting tool and vehicular lighting tool
JP4756634B2 (en) Vehicle lamp
JP2012178301A (en) Vehicle lamp and method of manufacturing the same
JP2016117225A (en) Laser welding structure of resin component
JP2014069371A (en) Welding structure
JP2006073296A (en) Vehicular lamp and laser welding method of vehicular lamp
JP5553155B2 (en) Vehicle lamp manufacturing method using laser welding
JP2004063331A (en) Vehicular lighting fixture
JP2003123512A (en) Vehicular lamp
JP2005339989A (en) Vehicular lamp and manufacturing method of vehicular lamp
JP2012028143A (en) Lamp fitting for vehicle and manufacturing method of lamp fitting for vehicle
JP2004063333A (en) Vehicular lighting fixture
JP2004014413A (en) Outer lens assembly for vehicular lamp

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130218

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20131111

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20131119

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140115

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140513

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140711

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140805

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140903

R150 Certificate of patent or registration of utility model

Ref document number: 5611624

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250