JP5204624B2 - Decorative member - Google Patents

Decorative member

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JP5204624B2
JP5204624B2 JP2008282704A JP2008282704A JP5204624B2 JP 5204624 B2 JP5204624 B2 JP 5204624B2 JP 2008282704 A JP2008282704 A JP 2008282704A JP 2008282704 A JP2008282704 A JP 2008282704A JP 5204624 B2 JP5204624 B2 JP 5204624B2
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JP2010112710A (en )
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泰史 船田
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カルソニックカンセイ株式会社
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本発明は、装飾用部材、特に、車両の計器用文字盤に用いる装飾用リング部材の改良に関する。 The present invention is decorative member, particularly to an improvement of the decorative ring member used in the instrument dial of the vehicle.

従来から、スピードメータ、タコメータ等の車両用計器に用いられる計器用文字盤には、この計器用文字盤の装飾のため、計器用文字盤の指針回動領域を金属光沢を有する装飾用部材としての装飾用リング部材によって包囲する構成のものが知られている。 Conventionally, speedometer, the instrument dial which is used in the instrument for a vehicle tachometer or the like, for the instrument dial decoration, guidance rotation region of the instrument dial as a decorative member having a metallic luster there is known a structure which surrounds the decorative ring member.

従来、この種の計器用文字盤は、文字盤本体に指針回動領域を包囲するようにして係合穴を形成し、この係合穴に装飾用リング部材を装着する構成を採用している。 Conventionally, this kind of instrument dial adopts a configuration so as to surround the pointer rotation area dial body and form the engaging hole, to attach the decorative ring member in the engagement hole .

その装飾用リング部材は、放物線形状の輪郭を有する山形形状とされ、その底部に係合穴に係止される係止爪が形成されている。 Its decorative ring member is a chevron shape having a contour of the parabolic shape, the locking pawl is formed to be engaged with the engaging hole in its bottom.

その装飾用リング部材は、例えば、黒色でかつメッキが付着しない非メッキ性の樹脂材料を用いたリング状内側樹脂部材とメッキが付着するメッキ性の樹脂材料を用いたリング状外側樹脂部材とから構成されている。 From the decorative ring member, for example, a ring-shaped outer resin member using the plating resin material which the ring-shaped inner resin member and the plating adheres with non-plated resin material black in and plating does not adhere It is configured.

この装飾用リング部材はリング状内側樹脂部材を形成した後、このリング状内側樹脂部材にメッキ性の樹脂材料を射出成形するといういわゆる二色成形法により形成される。 Thereafter decorative ring member which forms a ring-shaped inner resin member is formed by a so-called two-color molding method of injection molding a plated resin material in the ring-shaped inner resin member.

この装飾用リング部材は、その後、メッキ浴に浸漬され、そのリング状外側樹脂部材の表面にメッキ膜が成膜され、これにより、リング状外側樹脂部材の表面に金属光沢を有する装飾用リング状帯が形成される。 The decorative ring member is then immersed in a plating bath, the plating film on the surface of the ring-shaped outer resin member is formed, whereby the decorative ring having a metallic luster on the surface of the ring-shaped outer resin member band is formed.

この従来のものによれば、装飾用リング部材の表面全体にメッキ膜を形成した後、装飾用リング部材の内周面部に黒色塗装を施すために、装飾用リング部材の外周面部をマスクする製造方法に較べて、安価に製造できるという長所がある(例えば、特許文献1参照。)。 According to one of the prior art, after forming a plating film on the entire surface of the decorative ring member, in order to perform the black coating on the inner peripheral surface of the decorative ring member, to mask the outer peripheral surface of the decorative ring member manufacturing compared to the method, there is an advantage that it can be manufactured at low cost (for example, see Patent Document 1.).
特開2007−147296号公報 JP 2007-147296 JP

しかしながら、この従来の装飾用リング部材は、非メッキ性の樹脂材料を用いてリング状内側樹脂部材を射出成形した後、メッキ性の樹脂材料を用いて射出成形によりリング状外側樹脂部材を形成し、その後、この装飾用リング部材をメッキ浴に浸漬して、リング状外側樹脂部材の表面に金属光沢を有する装飾用リング状帯を形成するという工程を経るため、装飾用リング部材の成形工程が概して複雑であり、従来の黒色塗装による製造方法に較べて安価に製造できるといっても限度がある。 However, this conventional decorative ring member, after injection-molding a ring-shaped inner resin member using a non-plated resin material, forms a ring-shaped outer resin member by injection molding using a plating resin material , then immersing the decorative ring member in the plating bath, to undergo a process of forming a decorative ring band having a metallic luster on the surface of the ring-shaped outer resin member, molding step of the decorative ring member generally is complex, there is a limit to say that can be manufactured inexpensively as compared with the manufacturing method according to a conventional black coating.

価格競争が一層激化し、企業努力が一層要求される今日、品質を極力低下させることなくより一層安価に製造できる装飾用部材、ひいては、計器用文字盤が要請されている。 Price competition is further intensified, today the company effort is further required, decorative member can be further inexpensively manufactured without as much as possible to lower the quality, and hence, instrument dial has been demanded.

本発明は、上記の事情に鑑みて為されたもので、品質を極力低下させることなく製造コストの大幅な低減を図ることのできる装飾用部材を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object thereof is to provide a decorative member which can achieve a significant reduction in manufacturing cost without as much as possible reduce the quality.

請求項1に記載の装飾用部材は、指針回動領域の周囲に配置される帯状内周壁部と、該帯状内周壁部に対向配置される帯状外周壁部とを有し、前記帯状内周壁部と帯状外周壁部とのそれぞれの一端を連結して帯状頂壁部を形成すると共に、一端から他端に向けて前記帯状内周壁部と帯状外周壁部とを互いに離間せしめて帯状中空部を形成してなる装飾用部材であって、少なくとも前記帯状頂壁部を含む領域に装飾用反射帯を形成し、かつ、前記帯状内周壁部は前記帯状外周壁部に対して肉厚になるように前記帯状内周壁部と前記帯状外周壁部と前記帯状頂壁部とが一体成形され、前記帯状内周壁部の底部に、射出成形金型から前記装飾用部材を離型させるためのイジェクトピンが当接する突当部が形成されていることを特徴とする。 Ornamental member according to claim 1 has a belt-like wall portion disposed around the pointer rotation region, and a band-shaped peripheral wall portion disposed opposite to the belt-shaped inner circumferential wall, wherein the belt-like peripheral wall parts and with by connecting one end of each of the strip-shaped outer peripheral wall portion to form a strip top wall portion, the strip hollow portion brought apart from each other and said belt-like wall portion and the band-shaped outer peripheral wall portion from one end to the other end a decorative member obtained by forming a forming a decorative reflection band in a region including at least the strip top wall portion, and said belt-like wall portion is thicker relative to the strip outer peripheral wall portion wherein the belt-like inner circumferential wall portion and said band outer peripheral wall portion and the strip top wall portion is integrally molded to the bottom of the belt-like wall portion, an eject for causing release of the decorative member from the injection molding die as pin, characterized in that the abutting portions abutting is formed.

請求項2に記載の装飾用部材は、前記装飾用反射帯は、接着によって前記帯状頂壁部に形成されていることを特徴とする。 Ornamental member according to claim 2, wherein the decorative reflection band is characterized by being formed on the strip top wall portion by adhesion.

請求項3に記載の装飾用部材は、前記装飾用反射帯は、ホットスタンピングにより形成されていることを特徴とする。 Ornamental member according to claim 3, wherein the decorative reflection band is characterized in that it is formed by hot stamping.

請求項1に記載の装飾用部材は、指針回動領域の周囲に配置される帯状内周壁部と、この帯状内周壁部に対向配置される帯状外周壁部と、その帯状内周壁部とその帯状外周壁部とのそれぞれの一端を連結する帯状頂壁部と、一端から他端に向けて帯状内周壁部と帯状外周壁部とを互いに離間せしめる帯状中空部とを有する装飾用部材の帯状頂壁部に装飾用反射帯を形成することにしたので、一度に帯状内周壁部と帯状外壁部と帯状頂壁部とを成形できるので、従来のいわゆる二色成型法によるものに較べて、装飾用部材を安価に製造できるという効果を奏する。 Ornamental member according to claim 1 includes a strip-shaped inner circumferential wall that is disposed around the guide rotation region, and the band-shaped outer peripheral wall portion disposed opposite to the belt-like inner circumferential wall, and its belt-like circumferential wall portion thereof strip-shaped decorative member having a belt-shaped top wall portion connecting one end of each of the strip-shaped outer peripheral wall portion, and a strip-shaped hollow portion allowed to separate from each other and the belt-like inner circumferential wall portion and the band-shaped outer peripheral wall portion from one end to the other end since it was decided to form the decorative reflection band in the top wall, it is possible to form the band-shaped inner circumferential wall and the strip outer wall portion and a strip-shaped top wall portion at one time, compared to that by the conventional so-called two-color molding method, an effect that the decorative member can be manufactured at low cost.
更に、射出成形金型から装飾用部材を離型させるイジェクトピンが突き当たる突当部を、帯状外周壁部よりも剛性の高い帯状内周壁部の底部に設けたので、装飾用部材の射出成形金型からの離型時に装飾用部材が変形するのを防止できるという効果を奏する。 Further, the abutting portion eject pin is abutted to release the decorative member from the injection molding die, since there is provided on the bottom of the belt-like inner circumferential wall portion higher rigidity than the belt-like outer peripheral wall, injection mold ornamental member decorative member during release from the mold is an effect that can be prevented from being deformed.

また、帯状内周壁部と帯状外周壁部との間に帯状中空部を形成することにより装飾用部材の体積を減少させたので、この装飾用部材に対して低温環境条件下と高温環境条件下との間での温度サイクル試験を行った場合でも、体積膨張に起因する歪み変形を緩和でき、従って、メッキに較べて密着力の弱い接着により帯状頂壁部に形成された装飾用反射帯にクラックが生じるのを極力避けることができるという効果を奏する。 Further, since the volume was reduced decorative member by forming a belt-like hollow portion between the belt-like inner circumferential wall and the strip outer peripheral wall portion, the low-temperature environmental conditions and high temperature environment conditions to the ornamental member even when the temperature cycle test was carried out between the can relax the strain deformation due to volume expansion, therefore, the decorative reflection band formed in a band shape top wall portion by a weak adhesive having adhesion in comparison with the plating an effect that it is possible to avoid occurrence of cracks as much as possible.

また、帯状外周壁部の肉厚に較べて帯状内周壁部の肉厚を厚く形成したので、帯状外周壁部よりも帯状内周壁部の剛性を高く設定でき、変形しずらくなるという効果を奏する。 Moreover, since the thick wall thickness of the belt-like inner circumferential wall compared to the wall thickness of the strip the outer peripheral wall portion, than the belt outer peripheral wall portion can set a high rigidity of the belt-like inner circumferential wall, an effect of pleasure becomes not deformed unlikely to.

特に、請求項3に記載の装飾用部材によれば、装飾用反射帯がホットスタンピングにより形成されているので、安価に製造できるという効果を奏する。 In particular, according to the ornamental member according to claim 3, since the decorative reflection band is formed by hot stamping, an effect that can be manufactured inexpensively.

また、ホットスタンピングには各種の色のものが市販されているので、従来の金属色一色のものに較べて取り付け場所の背景色、使用者の嗜好等に合わせて、装飾用反射帯の色を自由に選択できるという効果を奏する。 Moreover, since any of various colors are commercially available hot stamping, the background color of the installation location as compared to that of conventional metallic color color, to match the user's preference or the like, the color of the decorative reflection band an effect that can be freely selected.

以下に、本発明に係わる装飾用部材としての装飾用リング部材を有する計器用文字盤を車両用計器に適用した実施例を図面を参照しつつ説明する。 Hereinafter, an embodiment of applying the instrument dial on the instrument for a vehicle having a decorative ring member as a decorative member according to the present invention with reference to the drawings.

図1は本発明に係わる車両用計器としてのコンビネーションメータの部分分解斜視図である。 Figure 1 is a partially exploded perspective view of the combination meter as an instrument for a vehicle according to the present invention.

この図1において、符号1はコンビネーションメータである。 In FIG. 1, reference numeral 1 is a combination meter. このコンビネーションメータ1は、計器用の文字盤本体2を有する。 The combination meter 1 has a dial body 2 for the instrument. この文字盤本体2には、スピードメータ用の大径指針回動領域3、燃料メータ用の小径指針回動領域4、タコメータ用の大径指針回動領域5、水温メータ用の小径指針回動領域6を有する。 The dial body 2, the large radial index needle turning regions 3 for the speedometer, a small diameter guide pivoting area 4 for a fuel meter, a large radial index needle turning area 5 for tachometer, small diameter guide rotation of the water temperature meter It has an area 6.

この各指針回動領域3〜6には、円弧状に目盛り7が付されると共に、目盛り7に沿って適宜箇所に文字8が付されている。 The respective guidance rotation region 3-6, with the scale 7 in an arc shape is attached, has the character 8 is attached to an appropriate position along the scale 7. 各指針回動領域3〜6の中心部には図2に示すように軸部挿通穴9が形成され、この軸部挿通穴9には回動軸(図示を略す)が挿通され、この回動軸には図1に示すように適宜形状の指針10が設けられている。 In the center of the hands turning area 3-6 shank insertion hole 9 as shown in FIG. 2 is formed on the shaft portion insertion hole 9 pivot shaft (illustration is omitted) are inserted, the times the pointer 10 of appropriate shape, as shown in FIG. 1 is provided on the shaft.

その大径指針回動領域3、5、小径指針回動領域部4、6は、図2に示すように、少なくともその円弧状の目盛り7が付された半径方向外方部が外方に向かって平坦部11から斜めに立ち上がるように傾斜する傾斜壁12とされている。 Its large radial index needle turning regions 3,5, diameter guideline pivot region portion 4 and 6, as shown in FIG. 2, the radially outward portion of at least the arc-shaped scale 7 is attached is outwardly Te is an inclined wall 12 inclined from the flat portion 11 so as to rise obliquely.

その文字盤本体2には、図1に示すように、その大径指針回動領域3、5を包囲するようにして、係合穴3'が適宜間隔を開けて形成されていると共に、小径指針回動領域4、6を包囲するようにして、係合穴4'が形成されている。 Its dial body 2, as shown in FIG. 1, so as to surround the large-radial index needle turning regions 3,5, the engagement hole 3 'is formed by opening the appropriate intervals, small so as to surround the pointer rotation regions 4 and 6, the engagement hole 4 'is formed.

この文字盤本体2には、装飾用部材としての装飾用リング部材13、14が装着される。 This is dial body 2, the decorative ring member 13 and 14 as a decorative member is attached. この装飾用リング部材13と装飾用リング部材14とは同一形状であるので、以後、一方の装飾用リング部材14についてのみ説明することとする。 Since this decorative ring member 13 and the decorative ring member 14 is the same shape, hereinafter there will be described only for one of the decorative ring member 14.

この装飾用リング部材14は、図3、図4に拡大して示すように、大径指針回動領域3に対応する装飾用大径リング部14aと小径指針回動領域4に対応する装飾用小径リング部14bとから構成されている。 The decorative ring member 14, FIG. 3, as shown enlarged in FIG. 4, ornamental corresponding to the large radial index needle turning large diameter ring decorative corresponding to the region 3 part 14a and the small-diameter guidance pivoting area 4 and a small-diameter ring portion 14b. その装飾用小径リング部14bは装飾用大径リング部14aに連結された円弧形状とされている。 Its decorative small diameter ring portion 14b is an arc shape which is connected to the large-diameter ring portion 14a ornamental.

この装飾用大径リング部14a、装飾用小径リング部14bは、係合穴3'に係合される係合爪15とその係合穴4'に係合される係合爪16とを有する。 The decorative large-diameter ring portion 14a, decorative small diameter ring portion 14b has a engaging claw 16 to be engaged 'with engaging claw 15 to be engaged with the engagement hole 4' engaging hole 3 . 係合爪15、16はその装飾用大径リング部14a、装飾用小径リング部14bの底部に形成されている。 Engagement claws 15 and 16 are large-diameter ring portion 14a for the decoration, which is formed in the bottom of the decorative small diameter ring portion 14b.

この装飾用大径リング部14aと装飾用小径リング部14bとは、図5に断面で示すように、指針回動領域3、4の周囲に配置される帯状内周壁部としてのリング状内周壁部17と、このリング状内周壁部17に対向配置される帯状外周壁部としてのリング状外周壁部19とを有する。 And the decorative small diameter ring portion 14b This decorative large-diameter ring portion 14a, as shown in section in FIG. 5, a ring-shaped inner peripheral wall of the belt-like inner circumferential wall that is disposed around the guide pivot regions 3 and 4 has a part 17, and a ring-shaped outer peripheral wall portion 19 of the belt-like outer peripheral wall portion disposed opposite to the ring-shaped inner circumferential wall 17. そのリング状内周壁部17とそのリング状外周壁部19とは互いに離間せしめられて他端側の下方に向かって開放する帯状中空部としてのリング状中空部18がリング状内周壁部17とリング状外周壁部19との間に形成されている。 And the ring-shaped inner circumferential wall 17 and the ring-shaped hollow portion 18 is ring-shaped inner circumferential wall portion 17 of the belt-like hollow portion which opens downward of mutually spaced allowed is by the other end of its ring-shaped outer peripheral wall portion 19 It is formed between the ring-shaped outer peripheral wall portion 19.

そのリング状内周壁部17とリング状外周壁部19とのそれぞれ一端が連結されて、山形形状で頂部から中腹部を経てリング状外周壁部19とリング状内周壁部17とに通じるリング状頂壁部20がリング状中空部18の上方に形成されている。 Each end of its ring-shaped inner circumferential wall portion 17 and the ring-shaped outer peripheral wall portion 19 is connected, a ring leading to a ring-shaped outer peripheral wall portion 19 and the ring-shaped inner circumferential wall portion 17 via the middle abdomen from the top in Yamagata shape top wall portion 20 is formed above the ring-shaped hollow portion 18.

この装飾用リング部材14は、黒色樹脂材料を用いて図6〜図9に示す射出成形金型21により、リング状内周壁部17とリング状外周壁部19とリング状頂壁部20と係合爪16とが一体形成される。 The decorative ring member 14, the injection mold 21 shown in FIGS. 6 to 9 using a black resin material, engaging the ring-shaped inner circumferential wall portion 17 and the ring-shaped outer peripheral wall portion 19 and the ring-shaped top wall portion 20 and claws 16 are integrally formed. なお、この図6〜図9には、射出成形金型21のうち大径リング部14aを形成する部分についてのみが模式的に示されている。 Note that this 6-9, only the portion forming the large-diameter ring portion 14a of the injection mold 21 is shown schematically.

その射出成形金型21は、例えば、下型21Aと上型21Bとから大略構成され、下型21Aは上型21Bに対して昇降可能とされている。 Its injection mold 21, for example, is largely constituted by a lower mold 21A and the upper die 21B, the lower die 21A is vertically movable relative to the upper die 21B. 上型21Bには黒色樹脂材料を注入する樹脂注入路21Cとリング状キャビティ21Dとが形成されている。 A resin injection passage 21C and the ring-shaped cavity 21D of injecting black resin material is formed in the upper die 21B. 下型21Aにはリング状キャビティ21Dと協働してリング状中空部18を形成するリング状突起部21Eが形成されていると共に係合爪15、16形成用のキャビティ21Fが形成されている。 The lower die 21A has a ring-shaped cavity 21D in cooperation with the cavity 21F for engaging claw 15 formed with a ring-shaped protruding portion 21E to form a ring-shaped hollow portion 18 is formed is formed.

その下型21Aには射出成形金型21から装飾用リング部材14を離型させるためのイジェクトピン22を有するイジェクト板23が設けられている。 Eject plate 23 is provided with ejector pins 22 for releasing the decorative ring member 14 from the injection mold 21 is in its lower mold 21A. このイジェクト板23は、例えば、油圧シリンダ装置24によって駆動される。 The eject plate 23 is, for example, is driven by a hydraulic cylinder device 24.

そのリング状内周壁部17の底部側の肉厚は、図4に示すように、イジェクトピン22がそのリング状内周壁部17の底部17aに当接する当接面積を確保するためにリング状外周壁部19の底部側の肉厚よりも大きく形成され、そのリング状内周壁部17の底部17aはイジェクトピン22が突き当たる突当部となっている。 The thickness of the bottom side of the ring-shaped inner circumferential wall portion 17, as shown in FIG. 4, the ring-shaped outer periphery to ensure contact area eject pin 22 abuts on the bottom portion 17a of the ring-shaped inner circumferential wall portion 17 is larger than the thickness of the bottom side of the wall portion 19, bottom portion 17a of the ring-shaped inner circumferential wall portion 17 has a butting portion eject pin 22 abuts.

図6に示す下型21Aの下降位置から矢印A方向に示すように下型21Aを上昇させ、図7に示すように、下型21Aと上型21Bとを衝合させて射出成形金型21を型締めし、この型締め状態で矢印Bで示すように樹脂注入路21Cから黒色樹脂材料21Gをリング状キャビティ21Dに注入し、黒色樹脂材料21Gを硬化させて、図8に示す装飾用リング部材14を成形する。 Raising the lower mold 21A, as shown from the lowered position of the lower mold 21A in the direction of arrow A shown in FIG. 6, as shown in FIG. 7, injection mold by abutting the lower mold 21A and the upper die 21B 21 was clamping, a black resin material 21G from the resin injection passage 21C as indicated by an arrow B in this clamping state is injected into the ring-shaped cavity 21D, curing the black resin material 21G, decorative ring shown in FIG. 8 shaping the member 14.

ついで、下型21Aを下降させて型開きした状態で、図9に示すように、イジェクト板23をシリンダ装置24により矢印C方向に駆動する。 Then, in a state where the mold is opened to lower the lower mold 21A, as shown in FIG. 9, to drive the eject plate 23 in the arrow C direction by the cylinder device 24. すると、装飾用リング部材14のリング状内周壁部17の底部17aにイジェクトピン22が当接し、装飾用リング部材14が下型21Aから離型される。 Then, the eject pin 22 at the bottom 17a of the ring-shaped inner circumferential wall portion 17 of the decorative ring member 14 abuts, the decorative ring member 14 is released from the lower mold 21A. 図4には、そのイジェクトピン22の当接痕跡が符号25で示されている。 Figure 4 is a contact trace of the eject pin 22 is shown at 25.

リング状頂壁部20の表面には、図3に示すように、金属光沢を有する装飾用反射帯としての装飾用リング状反射帯26がその頂部から中腹部に跨って形成されている。 On the surface of the ring-shaped top wall portion 20, as shown in FIG. 3, the decorative ring reflection band 26 as decorative reflection bands having a metallic luster is formed across the middle abdomen from the top. この装飾用リング状反射帯26は、接着、例えば、ホットスタンピングにより形成されるもので、図10はそのホットスタンピング箔30の断面構造を示している。 The decorative ring reflection band 26 is adhered, for example, those formed by hot stamping, Fig. 10 shows a cross-sectional structure of the hot stamping foil 30.

そのホットスタンピング箔30は、例えば、ベース31に離型層32を塗布し、この離型層32にアルミニウム蒸着膜33を形成し、このアルミニウム蒸着膜33に接着剤34を塗布したものが用いられる。 Its hot stamping foil 30, for example, a release layer 32 is applied to the base 31, the aluminum deposited layer 33 is formed on the release layer 32, is used that the adhesive 34 was applied to the aluminum deposited layer 33 .

このホットスタンピング箔30は、図11に示すように、装飾用リング部材14のリング状頂壁部20に当接され、ホットスタピング用のゴム部材35を用いて、ホットスタンピング箔30をリング状頂壁部20に押しつけると共に加熱することによりアルミニウム蒸着膜33がリング状頂壁部20に転写され、これにより、図12に示すように、装飾用リング状反射帯26が形成される。 The hot stamping foil 30, as shown in FIG. 11, in contact with the ring-shaped top wall portion 20 of the decorative ring member 14, with the rubber member 35 for hot static ping, ring-shaped hot stamping foil 30 aluminum deposited layer 33 is transferred to the ring-shaped top wall portion 20 by heating with pressing the top wall portion 20, thereby, as shown in FIG. 12, the decorative ring reflection band 26 is formed.

アルミニウム蒸着膜33は非常に薄いので、装飾用リング部材14に対して低温環境条件下(例えば、−40度C)と高温環境条件下(例えば、90度c)との間での温度サイクル試験を行った場合、一見すると、装飾用リング部材14の体膨張に起因する膨張・収縮により、装飾用リング反射帯26にクラックが生じそうであるが、この発明の実施の形態では、リング状内周壁部17とリング状外周壁部19との間にリング状中空部18が存在しているので、装飾用リング部材14に対してこの温度サイクル試験を行った場合でも、体膨張に起因する歪み変形を緩和でき、従って、メッキに較べて密着力の弱い接着により形成された装飾用リング反射帯26、例えば、ホットスタンピングにより形成された装飾用リング反射帯26にクラッ Since aluminum deposited layer 33 is very thin, the temperature cycle test between the low-temperature environment conditions to the decorative ring member 14 (e.g., -40 ° C) and high temperature environmental conditions (e.g., 90 degrees c) If performed, at first glance, the expansion and contraction due to volume expansion of the decorative ring member 14, but cracks in the decorative ring reflection band 26 is likely to occur, in the embodiment of the invention, the ring-shaped since there is a ring-shaped hollow portion 18 between the peripheral wall 17 and the ring-shaped outer peripheral wall portion 19, even when the relative decorative ring member 14 made this temperature cycle test, distortion due to volume expansion modifications can be relaxed, thus, the decorative ring reflection band 26 is formed by a weak adhesive having adhesion in comparison with plating, for example, clutch decorative ring reflective strip 26 formed by hot stamping が生じるのを極力避けることができる。 It is possible to avoid as much as possible the results.

また、この発明の実施の形態によれば、装飾用リング部材14を射出成形金型21から離型させるためのイジェクトピン22をリング状外周壁部19よりも剛性が高いリング状内周壁部17の底部17aに当接させ、かつ、このイジェクトピン22の当接面積を確保するためにリング状内周壁部17の底部側をリング状外周壁部19の底部側の肉厚よりも大きく形成したので、装飾用リング部材14の射出成形金型21からの離型時に装飾用リング部材14が変形するのを防止できるという効果を奏する。 Further, according to the embodiment of the present invention, the ejector pin 22 for releasing the decorative ring member 14 from the injection molding die 21 higher rigidity than the ring-shaped outer peripheral wall portion 19 a ring-shaped inner circumferential wall portion 17 It is brought into contact with the bottom 17a, and was larger than the thickness of the bottom side of the bottom side of the ring-shaped outer peripheral wall portion 19 of the ring-shaped inner circumferential wall portion 17 to secure the contact area of ​​the eject pin 22 since, decorative ring member 14 when the release from the injection mold 21 of the decorative ring member 14 is an effect that can be prevented from being deformed.

この発明の実施の形態では、装飾用大径リング部14aと装飾用小径リング部14bとからなる装飾用リング部材14に本発明を適用したが、本発明は、これに限らず、装飾用大径リング部14aのみ又は装飾用小径リング部材14bのみからなる装飾用リング部材14に適用することもできる。 In the embodiment of the present invention, the present invention is applied to the decorative ring member 14 consisting of a large-diameter ring portion 14a ornamental and decorative small diameter ring portion 14b, the present invention is not limited thereto, large breeds It can also be applied in the radial ring section 14a only or decorative ring member 14 made of only decorative small diameter ring member 14b.

また、この発明の実施の形態では、装飾用小径リング部14bのリング状頂壁部20と装飾用大径リング部14aのリング状頂壁部20との高さとが同一の装飾用リング部材14にホットスタンピングにより装飾用リング状反射帯26を形成することとしたが、図13に示すように、装飾用小径リング部14bのリング状頂壁部20と装飾用大径リング部14aのリング状頂壁部20との間に段差が存在する装飾用リング部材14にホットスタンピングにより装飾用リング状反射帯26を形成する構成としても良い。 In the embodiment of the present invention, decorative small diameter ring portion 14b of the ring-shaped top wall portion 20 and the height of the ring-shaped top wall portion 20 of the decorative large diameter ring portion 14a is the same decorative ring member 14 to it was possible to form a decorative ring reflection band 26 by hot stamping, as shown in FIG. 13, a ring-shaped ring top wall portion 20 and the decorative large diameter ring portion 14a of the decorative small diameter ring portion 14b the hot stamping decorative ring member 14 a step is present between the top wall 20 may be provided with a decorative ring reflection band 26.

本発明に係わる車両用計器の概略構成を一部を分解して示す斜視図である。 The schematic structure of a vehicle meter according to the present invention is an exploded perspective view showing a portion. 図1に示す計器用文字盤の断面図である。 It is a cross-sectional view of the instrument dial shown in FIG. 図1に示す装飾用リング部材の斜視図である。 It is a perspective view of a decorative ring member shown in FIG. 図3に示す装飾用リング部材を底面側から目視した状態を示す平面図である。 The decorative ring member shown in FIG. 3 is a plan view showing a visual state from the bottom side. 図4のX−X線に沿う断面図である。 It is a sectional view taken along the line X-X in FIG. 図3に示す装飾用リング部材成形用の射出成形金型の一例を示す断面図であって、下型と上型とが離間している状態を示す説明図である。 A cross-sectional view showing an example of an injection molding die for the decorative ring member molding shown in FIG. 3 is an explanatory view showing a state in which the lower mold and the upper mold are spaced. 図3に示す装飾用リング部材成形用の射出成形金型の一例を示す断面図であって、下型と上型とが衝合している状態を示す説明図であって、黒色樹脂材料注入前の状態を示す図である。 A cross-sectional view showing an example of an injection molding die for the decorative ring member molding shown in FIG. 3, an explanatory view showing a state in which the lower mold and the upper mold are abutting, black resin material injection it is a diagram showing a state before. 図3に示す装飾用リング部材成形用の射出成形金型の一例を示す断面図であって、下型と上型とが衝合している状態を示す説明図であって、黒色樹脂材料注入直後の状態を示す図である。 A cross-sectional view showing an example of an injection molding die for the decorative ring member molding shown in FIG. 3, an explanatory view showing a state in which the lower mold and the upper mold are abutting, black resin material injection is a diagram illustrating a state immediately after. 図3に示す装飾用リング部材成形用の射出成形金型の一例を示す断面図であって、下型と上型とが離間している状態を示す説明図であって、イジェクトピン作動前の状態を示す図である。 A cross-sectional view showing an example of an injection molding die for the decorative ring member molding shown in FIG. 3, an explanatory view showing a state in which the lower mold and the upper mold is spaced, before ejecting pin operating it is a diagram showing a state. 本発明に係わるホットスタンピング箔の一例を示す部分断面図である。 Is a partial sectional view showing an example of a hot stamping foil according to the present invention. 本発明に係わるホットスタンピングの一例を模式的に示す説明図である。 An example of a hot stamping according to the present invention is an explanatory view schematically showing. 本発明に係わる装飾用リング状反射帯が形成された装飾用リング部材の部分拡大断面図である。 Is a partially enlarged cross-sectional view of the decorative ring member decorative ring reflection band is formed according to the present invention. 本発明に係わる装飾用リング部材の他の実施例を示す説明図である。 Another embodiment of the decorative ring member according to the present invention; FIG.

符号の説明 DESCRIPTION OF SYMBOLS

3、5…指針回動領域13、14…装飾用リング部材(装飾用部材) 3, 5 ... guidelines turning regions 13 and 14 ... decorative ring member (decorative member)
17…リング状内周壁部(帯状内周壁部) 17 ... ring-shaped inner peripheral wall portion (the belt-like inner circumferential wall portion)
18…リング状中空部(帯状中空部) 18 ... ring-shaped hollow portion (strip-shaped hollow portion)
19…リング状外周壁部(帯状外周壁部) 19 ... ring-shaped outer peripheral wall (band-like outer peripheral wall)
20…リング状頂壁部(帯状頂壁部) 20 ... ring-shaped top wall portion (band-like top wall)
21…射出成形金型26…装飾用リング状反射帯(装飾用反射帯) 21 ... injection mold 26 ... decorative ring reflection band (decorative reflection band)

Claims (3)

  1. 指針回動領域の周囲に配置される帯状内周壁部と、該帯状内周壁部に対向配置される帯状外周壁部とを有し、前記帯状内周壁部と帯状外周壁部とのそれぞれの一端を連結して帯状頂壁部を形成すると共に、一端から他端に向けて前記帯状内周壁部と帯状外周壁部とを互いに離間せしめて帯状中空部を形成してなる装飾用部材であって、 One end of each of the guide times and the belt-like inner circumferential wall portion which is disposed around the moving region, and a band-shaped peripheral wall portion disposed opposite to the belt-shaped inner circumferential wall, wherein the belt-like inner circumferential wall portion and the band-shaped outer peripheral wall portion to form the band-shaped top wall and connecting to a decorative member made by forming a belt-like hollow portion brought apart from each other and said belt-like wall portion and the band-shaped outer peripheral wall portion from one end to the other end ,
    少なくとも前記帯状頂壁部を含む領域に装飾用反射帯を形成し、かつ、前記帯状内周壁部は前記帯状外周壁部に対して肉厚になるように前記帯状内周壁部と前記帯状外周壁部と前記帯状頂壁部とが一体成形され、前記帯状内周壁部の底部に、射出成形金型から前記装飾用部材を離型させるためのイジェクトピンが当接する突当部が形成されていることを特徴とする装飾用部材。 At least the strip top wall portion to form a decorative reflection band in the region including the, and the belt-like wall portion the strip-shaped outer peripheral wall wherein the belt-like inner circumferential wall portion so that the thick relative portion and the strip-shaped outer peripheral wall wherein a part strip top wall portion and are integrally molded on the bottom of the belt-like peripheral wall portion, the abutting portion eject pin for causing the release of the decorative member from the injection molding die abuts is formed ornamental member, characterized in that.
  2. 前記装飾用反射帯は、接着によって前記帯状頂壁部に形成されていることを特徴とする請求項1に記載の装飾用部材。 The decorative reflective band, decorative member according to claim 1, characterized in that it is formed on the strip top wall portion by adhesion.
  3. 前記装飾用反射帯は、ホットスタンピングにより形成されていることを特徴とする請求項2に記載の装飾用部材。 The decorative reflective band, decorative member according to claim 2, characterized in that it is formed by hot stamping.
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JP6263754B2 (en) * 2014-04-22 2018-01-24 日本精機株式会社 The display device for a vehicle
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