JP2021123224A - Cup holder - Google Patents

Cup holder Download PDF

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JP2021123224A
JP2021123224A JP2020017768A JP2020017768A JP2021123224A JP 2021123224 A JP2021123224 A JP 2021123224A JP 2020017768 A JP2020017768 A JP 2020017768A JP 2020017768 A JP2020017768 A JP 2020017768A JP 2021123224 A JP2021123224 A JP 2021123224A
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light
light guide
guide body
outer peripheral
region
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JP7360965B2 (en
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慶典 呉
Yoshinori Go
慶典 呉
陽 大石
Hiromi Oishi
陽 大石
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/10—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Planar Illumination Modules (AREA)
  • Passenger Equipment (AREA)

Abstract

To provide a cup holder of a light guide plate system lighting mechanism for causing light emission at the whole contour on the inner peripheral side of a holder part, and to restrain light emission unevenness by uniformizing an outgoing light quantity over the whole outer peripheral edge of the contour.SOLUTION: In a cup holder, a plate-like light guide body 10 and a shielding sheet are arranged on a bottom surface of a concave holder part for holding a beverage. The light guide body has a circular-arc part 7a, straight line parts 8a, 8b and a corner part 9 on a U-shaped outer peripheral edge 26A and a straight line-shaped outer peripheral edge 26B, and has refraction means 30 between an incident light hole 13 and the corner part. An inclined reflection surface 17 is provided with a first area 18 in which the light incident in the light guide body from an incident light hole part reaches an inclined reflection surface from the incident light hole part via the refraction means, and a second area 19 in which the light reaches the inclined reflection surface from the incident light hole part not via the refraction means. The second area is provided with reflection reduction means and a curved surface for minimizing a reflection quantity more than in the first area. Thus, light emission unevenness of the light emitted from the outer peripheral edge is restrained.SELECTED DRAWING: Figure 5

Description

本発明は、カップホルダー、特にホルダ部の収容スペースを照明する照明機構を備えたカップホルダーに関する。 The present invention relates to a cup holder, particularly a cup holder provided with a lighting mechanism for illuminating the storage space of the holder portion.

自動車などの移動体の室内においてペットボトルなどの飲料容器が倒れないように壁面で周囲を囲ったホルダ部を形成したカップホルダーが知られている。例えば、特許文献１はホルダ部の収容スペースを照明するために、底面に板状の導光体を備えるカップホルダーを開示している。 There is known a cup holder in which a holder portion surrounded by a wall surface is formed so that a beverage container such as a PET bottle does not fall in a moving body such as an automobile. For example, Patent Document 1 discloses a cup holder provided with a plate-shaped light guide body on the bottom surface in order to illuminate the storage space of the holder portion.

特許文献１に記載のカップホルダーは、指向性のあるＬＥＤ（発行ダイオード）から出射した光を底面の輪郭に沿った形状の導光レンズに入射させて外周縁の反射面で垂直上方へと反射して上方へ出射させて外周縁の一部をＵ字状に光らせている。 The cup holder described in Patent Document 1 causes light emitted from a directional LED (light emitting diode) to enter a light guide lens shaped along the contour of the bottom surface and is reflected vertically upward by a reflecting surface on the outer peripheral edge. Then, it is emitted upward to make a part of the outer peripheral edge shine in a U shape.

特許第６６２４９９１号公報Japanese Patent No. 6624991

しかし、上記公報開示のホルダ部の底面形状のように、円弧部と非円弧部の両方の輪郭を有するカップホルダーには、つぎの問題点がある。
板状の導光体の輪郭に沿った外周縁全体を発光させようとすると、底部中央から入射したＬＥＤからの光が導光体内を進む。反射手段としての溝を外周縁に沿った位置に形成するため、外周縁の一部には光が到達しない。そのため輪郭の全周が発光するのではなく輪郭の一部に非発光部のある部分的な発光（Ｕ字状の発光）となる。 However, a cup holder having contours of both an arc portion and a non-arc portion, such as the shape of the bottom surface of the holder portion disclosed in the above-mentioned publication, has the following problems.
When trying to emit light from the entire outer peripheral edge along the contour of the plate-shaped light guide, the light from the LED incident from the center of the bottom travels inside the light guide. Since the groove as a reflecting means is formed at a position along the outer peripheral edge, light does not reach a part of the outer peripheral edge. Therefore, the entire circumference of the contour does not emit light, but a part of the contour has a non-light emitting portion (U-shaped light emission).

本発明の目的の１つは、ホルダ部の内周側の輪郭全体を発光させる導光板方式の照明機構のカップホルダーを提供することにある。また、非円形の導光板形状であっても輪郭全周の発光の均一性に優れたカップホルダーを提供することにある。 One of an object of the present invention is to provide a cup holder of a light guide plate type lighting mechanism that emits light from the entire contour on the inner peripheral side of the holder portion. Another object of the present invention is to provide a cup holder having excellent uniformity of light emission over the entire contour even if it has a non-circular light guide plate shape.

本発明の一態様は、前記課題を達成するために、下記［１］から［６］のカップホルダーを提供する。 One aspect of the present invention provides the cup holders [1] to [6] below in order to achieve the above object.

［１］凹状のホルダ部を備えたカップホルダーであって、
前記ホルダ部は、被収容物を抜き差しする開口と、前記被収容物を支持する底面を有する底板と、側壁とによって凹状の形状とされ、
前記底板は、前記底面に沿った板状の光透過性樹脂材料からなる導光体と、当該導光体の一対の板面のうち前記導光体の前記開口側に位置する第１の主面の一部を覆う遮蔽シートと、前記導光体を支える導光体支持部とを有し、
前記導光体は、光源からの光を入光する入光用穴部と、前記入光用穴部から当該導光体内に入射した光を当該導光体の外側へ出射させる出射部と、前記入光用穴部から当該導光体内に入射した光を前記出射部に向かって内面反射させる傾斜反射面と、前記遮蔽シートを取り付ける遮蔽シート取付部とが形成されており、
前記入光用穴部は、前記第１の主面と反対側の第２の主面から凹む穴であって、前記ホルダ部の中央領域に位置し、
前記出射部は、前記導光体の外周縁に沿って形成され、前記第１の主面の外周縁において前記開口側に向かって突出しており、
前記傾斜反射面は、前記導光体の外周縁に沿って形成され、前記入光用穴部から外周端面に向かって上り勾配の傾斜面であり、
前記底板は、前記開口側から観視したときの平面形状が、前記外周縁に円弧部と、非円弧部と、角部とを有し、
前記第２の主面には、前記入光用穴部と前記角部との間に前記傾斜反射面に対する入射角を制御するための屈折手段を備え、
前記傾斜反射面は、前記入光用穴部から当該導光体内に入射した光が、前記屈折手段を介して前記入光用穴部から前記傾斜反射面に到達する第１領域と、前記屈折手段を介さずに前記入光用穴部から前記傾斜反射面に到達する第２領域を備え、
前記第２領域は、前記第１領域に比べて反射量を小さくする減反射手段と、前記傾斜反射面の少なくとも一部を前記入光用穴部側に凹の形状とした湾曲面とを備える、
ことを特徴とするカップホルダー。 [1] A cup holder provided with a concave holder portion.
The holder portion has a concave shape due to an opening for inserting and removing the object to be contained, a bottom plate having a bottom surface for supporting the object to be contained, and a side wall.
The bottom plate is a light guide body made of a plate-shaped light-transmitting resin material along the bottom surface, and a first main main body located on the opening side of the light guide body among a pair of plate surfaces of the light guide body. It has a shielding sheet that covers a part of the surface and a light guide body support portion that supports the light guide body.
The light guide includes a light entry hole for entering light from a light source, an exit portion for emitting light incident into the light guide body from the light entry hole to the outside of the light guide. An inclined reflecting surface that internally reflects the light incident on the light guide body from the light entry hole portion toward the exit portion, and a shielding sheet mounting portion for mounting the shielding sheet are formed.
The light entrance hole portion is a hole recessed from the second main surface opposite to the first main surface, and is located in the central region of the holder portion.
The exit portion is formed along the outer peripheral edge of the light guide body, and projects toward the opening side on the outer peripheral edge of the first main surface.
The inclined reflection surface is formed along the outer peripheral edge of the light guide body, and is an inclined surface having an upward gradient from the light entry hole portion toward the outer peripheral end surface.
The bottom plate has an arc portion, a non-arc portion, and a corner portion on the outer peripheral edge in a planar shape when viewed from the opening side.
The second main surface is provided with a refraction means for controlling an incident angle with respect to the inclined reflection surface between the light entry hole portion and the corner portion.
The inclined reflection surface includes a first region in which light incident on the light guide body from the light entry hole reaches the inclined reflection surface from the light entry hole via the refraction means, and the refraction. It is provided with a second region that reaches the inclined reflecting surface from the light entry hole portion without means.
The second region includes a reflection-reducing means for reducing the amount of reflection as compared with the first region, and a curved surface having at least a part of the inclined reflection surface having a concave shape on the light entry hole side. ,
A cup holder that features that.

［２］前記屈折手段は、前記第２の主面に設けた窪みの側面であり、前記入光用穴部から当該導光体内に入射した光が前記窪み内に出射する窪み内出射面と、前記屈折出射面から窪み内に出射した光が前記導光体内に入射する窪み内入射面とを備える
ことを特徴とする上記［１］に記載のカップホルダー。 [2] The refraction means is a side surface of a recess provided on the second main surface, and is a surface of the recess in which light incident on the light guide body from the light entry hole is emitted into the recess. The cup holder according to the above [1], wherein the light emitted from the refraction emitting surface into the recess includes an incident surface in the recess that is incident on the light guide body.

［３］前記減反射手段は、前記傾斜反射面の一部に光吸収部もしくは駄肉部を有することを特徴とする上記［１］又は［２］に記載のカップホルダー。 [3] The cup holder according to the above [1] or [2], wherein the reduced reflection means has a light absorbing portion or a thin portion on a part of the inclined reflecting surface.

［４］前記減反射手段は、前記導光体の外周縁の側面と前記傾斜反射面との境界領域に位置することを特徴とする上記［３］に記載のカップホルダー。 [4] The cup holder according to the above [3], wherein the antireflection means is located at a boundary region between a side surface of an outer peripheral edge of the light guide and the inclined reflection surface.

［５］前記第２領域は、前記傾斜反射面の少なくとも一部を前記入光用穴部側に凹の形状とした湾曲面とを備えることを特徴とする上記［１］乃至［４］のいずれかに記載のカップホルダー。 [5] The second region according to the above [1] to [4], wherein at least a part of the inclined reflection surface is provided with a curved surface having a concave shape on the light entry hole side. The cup holder described in either.

［６］前記減反射手段は、前記傾斜反射面の一部領域に駄肉部を有し、
前記傾斜反射面において前記駄肉部の形成されていない領域において、前記入光用穴部側に凹の形状とした湾曲面を備えることを特徴とする上記［３］乃至［５］のいずれかに記載のカップホルダー。 [6] The antireflection means has a wall portion in a part of the inclined reflection surface, and has a wall portion.
Any of the above [3] to [5], wherein a curved surface having a concave shape is provided on the side of the light entry hole portion in the region where the waste portion is not formed on the inclined reflecting surface. The cup holder described in.

本発明によれば、ホルダ部の内周側の輪郭全体を発光させる導光板方式の照明機構のカップホルダーを提供することができる。カップホルダー底面の輪郭の発光を、光源からの光の入射部から導光体の外周縁に至るときの外周縁の形状に応じて、減反射手段および湾曲面で出射光量を制御しているので、外周縁全体に亘って出射光量を均一化して発光ムラを抑制した外周縁発光のカップホルダーを得ることができる。 According to the present invention, it is possible to provide a cup holder of a light guide plate type lighting mechanism that emits light from the entire contour on the inner peripheral side of the holder portion. Since the amount of emitted light is controlled by the antireflection means and the curved surface according to the shape of the outer peripheral edge when the light emission of the contour of the bottom surface of the cup holder is from the incident part of the light from the light source to the outer peripheral edge of the light guide body. It is possible to obtain a cup holder for outer peripheral light emission in which the amount of emitted light is made uniform over the entire outer peripheral edge and light emission unevenness is suppressed.

図１は、カップホルダーを示す斜め上方向から観視した斜視図である。（第１の実施形態）FIG. 1 is a perspective view showing the cup holder viewed from diagonally above. (First Embodiment) 図２は、図１のカップホルダーを示す斜め下方向から観視した斜視図である。FIG. 2 is a perspective view showing the cup holder of FIG. 1 as viewed from diagonally downward. 図３は、第１の実施形態によるカップホルダーを開口している上方向から観視した平面図である。FIG. 3 is a plan view of the cup holder according to the first embodiment as viewed from above. 図４は、図３のＡ−Ａ線に沿った断面を一部を切り欠いた説明する断面図である。FIG. 4 is a cross-sectional view for explaining a cross section taken along the line AA of FIG. 3 with a part cut out. 図５は、導光体をホルダ部の底側から観視した平面図である。FIG. 5 is a plan view of the light guide body viewed from the bottom side of the holder portion. 図６は、光源を斜め上方向から観視した斜視図である。FIG. 6 is a perspective view of the light source viewed from diagonally above. 図７は、光源の分解斜視図である。FIG. 7 is an exploded perspective view of the light source. 図８は、図４のＢ部を拡大して示す概略断面図である。FIG. 8 is a schematic cross-sectional view showing an enlarged portion B of FIG. 図３のＢ−Ｂ線に沿った断面図の一部を拡大して示す概略断面図である。It is a schematic cross-sectional view which shows by enlarging a part of the cross-sectional view along the line BB of FIG. 図９のＤ部およびＥ部を拡大した断面図である。9 is an enlarged cross-sectional view of a portion D and a portion E of FIG. 図１１は、第２の実施形態のカップホルダーの底面を開口側から観視した概略平面図である。FIG. 11 is a schematic plan view of the bottom surface of the cup holder of the second embodiment as viewed from the opening side. 図１２は、第３の実施形態のカップホルダーの導光体の第２領域における外周端部近傍の断面図である。FIG. 12 is a cross-sectional view of the vicinity of the outer peripheral end portion in the second region of the light guide body of the cup holder of the third embodiment. 図１３は、第４の実施形態のカップホルダーの導光体の第２領域における外周端部近傍の断面図である。FIG. 13 is a cross-sectional view of the vicinity of the outer peripheral end portion in the second region of the light guide body of the cup holder of the fourth embodiment.

以下、本発明の実施形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

〔第１の実施の形態〕
図１〜図１０を用いて第１の実施形態のカップホルダー１について説明する。
図１は、第１の実施形態によるカップホルダー１を示す斜め上方向から観視した斜視図、図２は、同じカップホルダー１を斜め下方向から観視した斜視図である。図３は、第１の実施形態によるカップホルダー１を開口２１側の上方向から観視した平面図、図４は、図３のＡ−Ａ線に沿った断面の右側の一部を省略して示す断面図である。図５は、第１の実施形態によるカップホルダー１に設けられた導光体１０をホルダ部２の底側から観視した平面図である。 [First Embodiment]
The cup holder 1 of the first embodiment will be described with reference to FIGS. 1 to 10.
FIG. 1 is a perspective view showing the cup holder 1 according to the first embodiment viewed from an obliquely upward direction, and FIG. 2 is a perspective view of the same cup holder 1 viewed from an obliquely downward direction. FIG. 3 is a plan view of the cup holder 1 according to the first embodiment viewed from above on the opening 21 side, and FIG. 4 omits a part of the right side of the cross section taken along the line AA of FIG. It is a cross-sectional view shown by. FIG. 5 is a plan view of the light guide body 10 provided on the cup holder 1 according to the first embodiment as viewed from the bottom side of the holder portion 2.

本実施形態のカップホルダー１は、自動車のエアコン吹き出し口に取り付けるタイプである。カップホルダー１は、ペットボトルやコーヒーカップなどなどの飲料容器６を収容する凹状のホルダ部２と、図示しない車両のエアコン吹き出し口などに取り付けるための車両取り付け部３とを有する本体４を備える。 The cup holder 1 of the present embodiment is a type attached to an air conditioner outlet of an automobile. The cup holder 1 includes a main body 4 having a concave holder portion 2 for accommodating a beverage container 6 such as a PET bottle or a coffee cup, and a vehicle mounting portion 3 for attaching to an air conditioner outlet of a vehicle (not shown).

ホルダ部２は、飲料容器６を抜き差しする開口２１と、飲料容器６を保持する底面２２および側壁２３によって凹状の収容スペースを形成する。側壁２３は、開口２１側に向かって僅かに拡開した形状に形成されている。底面２２は、凹状としたホルダ部２の底を構成し、側壁２３との境界部分をなす輪郭にホルダ部２の内側に向かって光を出射する出射部１４を備える。出射部１４は、ホルダ部２の底に設けた導光体１０の外周縁に形成されており、導光体１０内に導入された光源５からの光をホルダ部２内に向けて照射する。 The holder portion 2 forms a concave accommodating space by an opening 21 for inserting and removing the beverage container 6, a bottom surface 22 for holding the beverage container 6, and a side wall 23. The side wall 23 is formed in a shape slightly widened toward the opening 21 side. The bottom surface 22 constitutes the bottom of the concave holder portion 2, and includes an exit portion 14 that emits light toward the inside of the holder portion 2 in a contour forming a boundary portion with the side wall 23. The emitting portion 14 is formed on the outer peripheral edge of the light guide body 10 provided at the bottom of the holder portion 2, and irradiates the light from the light source 5 introduced into the light guide body 10 toward the inside of the holder portion 2. ..

本体４は、遮光性の樹脂材料により形成されており、側壁２３と、側壁２３から底面２２の中央領域側に伸びる導光体支持部２４とが一体に形成されている。導光体支持部２４は、導光体１０を支持する。側壁２３の外側には、車両取り付け部３が側壁２３と一体に形成されている。本実施形態においてはＬ字状のフックとしているが、他の形状であっても良い。 The main body 4 is formed of a light-shielding resin material, and the side wall 23 and the light guide body support portion 24 extending from the side wall 23 toward the central region of the bottom surface 22 are integrally formed. The light guide body support portion 24 supports the light guide body 10. On the outside of the side wall 23, a vehicle mounting portion 3 is formed integrally with the side wall 23. In the present embodiment, the hook is L-shaped, but other shapes may be used.

ホルダ部２の底面２２には、別体に形成した導光体１０が設けられて。導光体１０を本体４の開口２１から嵌め込むことにより、導光体１０を導光体支持部２４に固定することができる。これにより、導光体１０と、導光体支持部２４とで底板２６を構成する。導光体１０と導光体支持部２４とは、別体に形成されているが、例えば２色成型等の射出成型により一体に形成されていてもよい。 A light guide body 10 formed separately is provided on the bottom surface 22 of the holder portion 2. By fitting the light guide body 10 through the opening 21 of the main body 4, the light guide body 10 can be fixed to the light guide body support portion 24. As a result, the light guide body 10 and the light guide body support portion 24 form the bottom plate 26. Although the light guide body 10 and the light guide body support portion 24 are formed separately, they may be integrally formed by injection molding such as two-color molding.

ホルダ部２の底面２２の全体形状は、円筒形状の飲料容器６の収容に適する形状とされ、ホルダ部２の内周に沿った非円形形状をなしている。具体的には平面視で長方形の長辺の
一方を直線状外周縁２６Ｂとし、他方の長辺を円弧としたＵ字状外周縁２６Ａからなる形状としている。Ｕ字状外周縁２６Ａは、半円状の円弧部７と、この円弧部７の両端から直線状に互いに平行に延びる２つの直線部８からなる。直線状外周縁２６Ｂは、直線部８’からなる。直線状外周縁２６Ｂの直線部８’は、その両端において、Ｕ字状外周縁２６Ａの２つの直線部８の夫々と直交している。これにより、直線状外周縁２６ＢとＵ字状外周縁２６Ａとが交わる領域には角部９が形成されている。 The overall shape of the bottom surface 22 of the holder portion 2 is a shape suitable for accommodating the cylindrical beverage container 6, and has a non-circular shape along the inner circumference of the holder portion 2. Specifically, in a plan view, one of the long sides of the rectangle is a straight outer peripheral edge 26B, and the other long side is an arc, which is a U-shaped outer peripheral edge 26A. The U-shaped outer peripheral edge 26A is composed of a semicircular arc portion 7 and two straight portions 8 extending linearly in parallel with each other from both ends of the arc portion 7. The straight outer peripheral edge 26B is composed of a straight portion 8'. The straight portion 8'of the linear outer peripheral edge 26B is orthogonal to each of the two straight portions 8 of the U-shaped outer peripheral edge 26A at both ends thereof. As a result, the corner portion 9 is formed in the region where the linear outer peripheral edge 26B and the U-shaped outer peripheral edge 26A intersect.

導光体１０は、凹状のホルダ部２の底面に沿った方向を面内方向とする板形状をなし、アクリルやポリカーボネートなどの透光性樹脂材料により形成されている。厚さ方向と直交する表面である第１の主面１１と第１の主面１１の反対側に表面位置する第２の主面１２からなる一対の板面と、周囲の側面である外周端面１６を有し、全体として板状に形成されている。外周端面１６は、Ｕ字状外周縁２６Ａに対応する半円状の円弧部７ａと、この円弧部７ａの両端から直線状に互いに平行に延びる２つの直線部８ａ，８ｂを有する。また、直線状外周縁２６Ｂに対応して直線部８ｃを有する。第１の主面１１が開口２１側となるように配置され、第１の主面１１上には遮光シート２５が設けられている。 The light guide body 10 has a plate shape with the direction along the bottom surface of the concave holder portion 2 as an in-plane direction, and is formed of a translucent resin material such as acrylic or polycarbonate. A pair of plate surfaces consisting of a first main surface 11 which is a surface orthogonal to the thickness direction and a second main surface 12 which is located on the opposite side of the first main surface 11 and an outer peripheral end surface which is a peripheral side surface. It has 16 and is formed in a plate shape as a whole. The outer peripheral end surface 16 has a semicircular arc portion 7a corresponding to the U-shaped outer peripheral edge 26A, and two straight portions 8a and 8b extending linearly parallel to each other from both ends of the arc portion 7a. Further, it has a straight portion 8c corresponding to the linear outer peripheral edge 26B. The first main surface 11 is arranged so as to be on the opening 21 side, and a light-shielding sheet 25 is provided on the first main surface 11.

第１の主面１１は、ホルダ部２の開口２１側に位置する面で、遮光シート取付部１５と、遮光シート取付部１５の外周を囲むようにして縁に出射部１４が形成されている。出射部１４の最上面、すなわち開口２１側の先端面の遮光シート取付部１５からの高さは、遮光シート２５の厚みよりも大きいものとされている。このため、導光体１０の縁（出射部１４）は遮光シート２５に覆われておらず、ホルダ部２内において露出している。 The first main surface 11 is a surface located on the opening 21 side of the holder portion 2, and the light-shielding sheet mounting portion 15 and the exit portion 14 are formed on the edge so as to surround the outer periphery of the light-shielding sheet mounting portion 15. The height of the uppermost surface of the emitting portion 14, that is, the tip surface on the opening 21 side from the light-shielding sheet mounting portion 15, is set to be larger than the thickness of the light-shielding sheet 25. Therefore, the edge (emission portion 14) of the light guide body 10 is not covered with the light-shielding sheet 25, but is exposed in the holder portion 2.

遮光シート２５は、フィルム状の弾性材料からなる遮光性部材であり、遮光シート取付部１５に接着剤や両面テープを用いて固定されている。遮光シート２５は、少なくとも飲料容器６が置かれるホルダ部２の中央領域に取り付けられる。複数の飲料容器６を収容する場合には、それぞれの飲料容器６に応じた中央領域に設けられている。中央領域に設けることで、後述する入光用穴部１３が上面側から直接観視されるのを防止するとともに、飲料容器６により導光体１０の第１の主面１１に傷がつくことを防止することができる。本実施形態では、底面２２の輪郭部分を除くほぼ全面を覆うように底面２２と相似形状に形成されている。 The light-shielding sheet 25 is a light-shielding member made of a film-like elastic material, and is fixed to the light-shielding sheet attachment portion 15 with an adhesive or double-sided tape. The light-shielding sheet 25 is attached to at least the central region of the holder portion 2 on which the beverage container 6 is placed. When a plurality of beverage containers 6 are accommodated, they are provided in a central region corresponding to each beverage container 6. By providing it in the central region, it is possible to prevent the light entry hole portion 13 described later from being directly viewed from the upper surface side, and the beverage container 6 damages the first main surface 11 of the light guide body 10. Can be prevented. In the present embodiment, the bottom surface 22 is formed in a similar shape to the bottom surface 22 so as to cover almost the entire surface except the contour portion.

第２の主面１２は、ホルダ部２の開口２１と反対側に位置する面である。図５に示すように中央領域に入光用穴部１３が形成され、外周縁には、入光用穴部１３から導光体１０内に入射した光Ｌ１，Ｌ２を出射部１４に向かって内面反射させる傾斜反射面１７が形成されている。また、２つの角部９と入光用穴部１３とを結ぶ夫々の仮想直線上の角部９近傍の位置には２つの窪み３０が形成されている。窪み３０が、屈折手段に相当する。 The second main surface 12 is a surface located on the side opposite to the opening 21 of the holder portion 2. As shown in FIG. 5, a light entering hole portion 13 is formed in the central region, and light L1 and L2 incident on the light guide body 10 from the light entering hole portion 13 are directed toward the exit portion 14 on the outer peripheral edge. An inclined reflecting surface 17 that reflects the inner surface is formed. Further, two depressions 30 are formed at positions near the corners 9 on each virtual straight line connecting the two corners 9 and the light entry hole 13. The recess 30 corresponds to the refraction means.

入光用穴部１３は、第２の主面１２から第１の主面１１に向かって凹の円柱状の穴であり、内部に光源５が挿入固定される。入光用穴部１３は、第２の主面１２から第１の主面１１に突き抜けていてもよい。入光用穴部１３の円柱面である内周面が、導光体１０の厚さ方向と平行もしくは第２の主面１２側に向かって僅かに拡開して形成されている。この内周面が光源５からの光の入射面となる。 The light entry hole portion 13 is a cylindrical hole that is concave from the second main surface 12 toward the first main surface 11, and the light source 5 is inserted and fixed inside. The light entry hole portion 13 may penetrate from the second main surface 12 to the first main surface 11. The inner peripheral surface, which is the cylindrical surface of the light entry hole portion 13, is formed so as to be parallel to the thickness direction of the light guide body 10 or slightly widened toward the second main surface 12 side. This inner peripheral surface is the incident surface of the light from the light source 5.

傾斜反射面１７は、導光体１０の外周縁に沿って形成され、導光体１０の外周端面１６（側面）と第２の主面１２とを結ぶ傾斜面である。傾斜反射面１７は、第２の主面１２に対して略４５度の角度をなしている。これにより、入光用穴部１３の内周面から導光体１０内に入って進む第２の主面１２と略平行な入射光を内面反射により出射部１４に向かって反射する。傾斜反射面１７の外部雰囲気は導光体１０との屈折率差が生じるように大気環境とする。そのために、側壁２３と傾斜反射面１７との間には隙間が設けられている。 The inclined reflecting surface 17 is formed along the outer peripheral edge of the light guide body 10, and is an inclined surface connecting the outer peripheral end surface 16 (side surface) of the light guide body 10 and the second main surface 12. The inclined reflecting surface 17 forms an angle of approximately 45 degrees with respect to the second main surface 12. As a result, the incident light substantially parallel to the second main surface 12 that enters the light guide body 10 from the inner peripheral surface of the light entry hole portion 13 is reflected toward the exit portion 14 by internal reflection. The external atmosphere of the inclined reflecting surface 17 is an atmospheric environment so as to cause a difference in refractive index from the light guide body 10. Therefore, a gap is provided between the side wall 23 and the inclined reflecting surface 17.

光源５からの光は、入光用穴部１３の内周面から導光体１０内に入射して、入光用穴部１３を中心として放射状に広がって進行する。放射状に進む入射光が外周縁に形成された傾斜反射面１７に到達する際に、外周縁の輪郭線に対して直交もしくは直交に近づくようにすることが出射部１４全体の均一性の観点からは好ましい。 The light from the light source 5 enters the light guide body 10 from the inner peripheral surface of the light entry hole portion 13 and spreads radially around the light entry hole portion 13 to travel. When the incident light traveling radially reaches the inclined reflecting surface 17 formed on the outer peripheral edge, it is necessary to make the incident light approach orthogonal or orthogonal to the contour line of the outer peripheral edge from the viewpoint of the uniformity of the entire emitting portion 14. Is preferable.

窪み３０は、図５に示すように平面視において三角形に近似する形状であり、外周の輪郭形状は湾曲線とされている。窪み３０が形成されていない場合には、角部９では、入光用穴部１３から入射して傾斜反射面１７に向かう光がＵ字状外周縁２６Ａの直線部８ａ，８ｂに対して平面視で斜めに入射する。同様に直線状外周縁２６Ｂの直線部８ｃに対しても平面視で斜めに入射する。平面視で斜めに入射した光は傾斜反射面１７にて平面視で斜め方向に反射する。傾斜反射面１７は上下方向において傾斜している。従って傾斜反射面１７に対して平面視で斜め方向から入射した光は斜め上方向に向かって光を反射する。そのため、角部９の出射部１４から出射する光は、斜め方向に向かって進む光が主となる。また、角部９以外の外周縁、例えばＵ字状外周縁２６Ａの円弧部７ａからの出射光に比べたとき、角部９の出射部１４からの出射光には明るさのムラが生じ、角部９を中心とした領域全体は暗くなる。 As shown in FIG. 5, the recess 30 has a shape similar to a triangle in a plan view, and the contour shape of the outer circumference is a curved line. When the recess 30 is not formed, in the corner portion 9, the light incident from the light entry hole portion 13 and directed toward the inclined reflecting surface 17 is flat with respect to the straight portions 8a and 8b of the U-shaped outer peripheral edge 26A. It is incident diagonally visually. Similarly, the linear portion 8c of the linear outer peripheral edge 26B is also obliquely incident in a plan view. Light incident obliquely in a plan view is reflected obliquely in a plan view by the inclined reflecting surface 17. The inclined reflecting surface 17 is inclined in the vertical direction. Therefore, the light incident on the inclined reflecting surface 17 from an oblique direction in a plan view reflects the light obliquely upward. Therefore, the light emitted from the exiting portion 14 of the corner portion 9 is mainly the light traveling in the oblique direction. Further, when compared with the light emitted from the outer peripheral edge other than the corner portion 9, for example, the arc portion 7a of the U-shaped outer peripheral edge 26A, the light emitted from the exit portion 14 of the corner portion 9 has uneven brightness. The entire region centered on the corner 9 becomes dark.

そこで、窪み３０を設けることで、傾斜反射面１７への光の平面視の入射角を制御する。窪み３０は、導光体１０の外周縁の輪郭線に対して直交もしくは直交に近づいて光源５からの入射光が到達するように制御するための溝であり、溝の内部は導光体１０との屈折率差が生じるように大気環境とされている。窪み３０の内周面である側面は曲面形状に形成され、その曲率を制御することで光の屈折現象を利用して進行方向を制御する。 Therefore, by providing the recess 30, the angle of incidence of light on the inclined reflecting surface 17 in a plan view is controlled. The recess 30 is a groove for controlling the incident light from the light source 5 to reach orthogonally or orthogonally to the contour line of the outer peripheral edge of the light guide body 10, and the inside of the groove is the light guide body 10. The atmospheric environment is set so that there is a difference in refractive index with. The side surface, which is the inner peripheral surface of the recess 30, is formed in a curved surface shape, and by controlling the curvature thereof, the traveling direction is controlled by utilizing the refraction phenomenon of light.

入光用穴部１３から窪み３０に到達した入射光は、窪み３０の側面の一部から窪み３０内に出射し、その光が窪み３０の側面の他の部分から導光体１０内に再度入射する。この窪み３０内に出射する側面を窪み内出射面３１、窪み３０内に出射した光が導光体１０内に再度入射する側面を窪み内入射面３２と称する。窪み内出射面３１および窪み内入射面３２の夫々において屈折作用が生じるので、窪み３０の大きさおよび形状を適宜なものとすることで傾斜反射面１７に到達する光の進行方向を制御することができる。 The incident light that has reached the recess 30 from the light entry hole 13 is emitted into the recess 30 from a part of the side surface of the recess 30, and the light is emitted from the other part of the side surface of the recess 30 again into the light guide body 10. Incident. The side surface emitted into the recess 30 is referred to as an exit surface 31 inside the recess, and the side surface on which the light emitted into the recess 30 is incident again into the light guide body 10 is referred to as an incident surface 32 inside the recess. Since a refraction action occurs on each of the exit surface 31 in the recess and the entrance surface 32 in the recess, the traveling direction of the light reaching the inclined reflection surface 17 is controlled by adjusting the size and shape of the recess 30 appropriately. Can be done.

本明細書において第１領域１８とは、窪み３０のような屈折手段を介して傾斜反射面１７に到達する光が、外周縁の輪郭線に対して直交もしくは直交に近づくように制御された外周縁領域をいう。屈折手段は窪み３０に限るものではなく、例えば屈折率の異なる別の透明樹脂材料を埋め込んだものとしてもよい。また、本明細書において第２領域19とは、外周縁領域のうち、第１領域以外の領域であって、入光用穴部１３から傾斜反射面１７に到達する光が、外周縁の輪郭線に対して直交もしくは直交に近い角度で入射する領域をいう。 In the present specification, the first region 18 is an outer region in which light reaching the inclined reflecting surface 17 via a refracting means such as a recess 30 is controlled so as to be orthogonal or orthogonal to the contour line of the outer peripheral edge. Peripheral area. The refraction means is not limited to the recess 30, and for example, another transparent resin material having a different refractive index may be embedded. Further, in the present specification, the second region 19 is a region other than the first region in the outer peripheral edge region, and the light reaching the inclined reflection surface 17 from the light entry hole portion 13 is the contour of the outer peripheral edge. A region that is orthogonal to or close to orthogonal to a line.

具体的には、第２領域１９は、Ｕ字状外周縁２６Ａに対応する円弧部７ａ、直線部８ａ，８ｂにおける円弧部７ａ近傍領域、および直線状外周縁２６Ｂに対応する直線部８ｃの中心部分近傍領域が該当する。第２領域１９は、第１領域１８よりも入光用穴部１３に近い場所に位置する。第１領域１８は、角部９に対応する領域である。なお、第１領域１８と第２領域の境界の位置は絶対的なものではない。 Specifically, the second region 19 is the center of the arc portion 7a corresponding to the U-shaped outer peripheral edge 26A, the region near the arc portion 7a in the straight portions 8a and 8b, and the straight portion 8c corresponding to the linear outer peripheral edge 26B. Partial neighborhood area is applicable. The second region 19 is located closer to the light entry hole 13 than the first region 18. The first region 18 is a region corresponding to the corner portion 9. The position of the boundary between the first region 18 and the second region is not absolute.

なお、本実施形態ではホルダ部２の底面の形状が、Ｕ字状外周縁２６Ａと直線状外周縁２６Ｂとからなる外周縁に対応した形状の導光板１０としているが、この形状に限るものではない。円弧部７は、入光用穴部１３を中心とした所定半径の円の円弧および当該円弧に近似できる楕円などの湾曲線を含む。また円に近似できる多角形（６角形以上）の直線状の辺部分も通常の飲料容器の大きさから考えて円弧部７に含まれる。直線部８，８’も直線に限るものではなく、円弧部７に該当しない直線に近似できる非円弧部が直線部に含まれる。 In the present embodiment, the shape of the bottom surface of the holder portion 2 is a light guide plate 10 having a shape corresponding to the outer peripheral edge composed of the U-shaped outer peripheral edge 26A and the linear outer peripheral edge 26B, but the shape is not limited to this shape. No. The arc portion 7 includes a circular arc having a predetermined radius centered on the light entry hole portion 13 and a curved line such as an ellipse that can approximate the arc. Further, a linear side portion of a polygon (hexagon or more) that can be approximated to a circle is also included in the arc portion 7 in consideration of the size of a normal beverage container. The straight line portions 8 and 8'are not limited to straight lines, and the straight line portion includes a non-arc portion that can be approximated to a straight line that does not correspond to the arc portion 7.

角部９は、本実施形態においては導光体１０の直線部８ａと直線部８ｃとの交点エリアおよび直線部８ｂと直線部８ｃとの交点エリアであるが、これに限るものではない。外周縁において、円弧部と非円弧部との接続部分や、非円弧部同士の接続部分が角部となる。導光板１０は、平面視において前記外周縁に少なくとも円弧部および非円弧部を有し、さらに角部を有している。 In the present embodiment, the corner portion 9 is an intersection area between the straight portion 8a and the straight portion 8c of the light guide body 10 and an intersection area between the straight portion 8b and the straight portion 8c, but is not limited thereto. On the outer peripheral edge, the connecting portion between the arc portion and the non-arc portion and the connecting portion between the non-arc portions are corner portions. The light guide plate 10 has at least an arc portion and a non-arc portion on the outer peripheral edge in a plan view, and further has a corner portion.

次に光源５について説明する。図６は光源を示す斜視図、図７が光源を分解して示す分解斜視図である。 Next, the light source 5 will be described. FIG. 6 is a perspective view showing the light source, and FIG. 7 is an exploded perspective view showing the light source in an exploded manner.

光源５は、導光体１０の入光用穴部１３に対応した大きさおよび形状とした略円柱状の側面を有する突起４２を設けたレンズ部４１と、光源本体部４０とからなり、本体部４０内には、ＬＥＤ４３を実装した基板４４が固定されている。ＬＥＤ４３は出射方向を上方とした表面実装型とされ、基板４４上に垂直な上方に向けて光が出射するように実装されている。基板４４は、プリント基板等が用いられＬＥＤ４３以外に抵抗などの電気部品４５も実装されている。レンズ部４１は、アクリルやポリカーボネートなどの透光性樹脂材料により形成されており、ＬＥＤ４３を覆うようにして本体部４２にスナップフィット４６により固定される。レンズ部４１は、突起４２がＬＥＤ４３の真上に位置するように本体部４０に取り付けられる。 The light source 5 includes a lens portion 41 provided with protrusions 42 having substantially columnar side surfaces having a size and shape corresponding to the light entry hole portion 13 of the light guide body 10, and a light source main body portion 40. A substrate 44 on which the LED 43 is mounted is fixed in the portion 40. The LED 43 is a surface mount type with the emission direction upward, and is mounted so that light is emitted upward perpendicular to the substrate 44. A printed circuit board or the like is used as the substrate 44, and an electric component 45 such as a resistor is mounted in addition to the LED 43. The lens portion 41 is made of a translucent resin material such as acrylic or polycarbonate, and is fixed to the main body portion 42 by a snap fit 46 so as to cover the LED 43. The lens portion 41 is attached to the main body portion 40 so that the protrusion 42 is located directly above the LED 43.

光源５の本体４０内には、ＬＥＤ４３に供給する電源として図示しない電池が収納されている。電池の代わりに車両等の外部電源と接続するための電源コードが接続されていてもよい。光源５は、導光体１０の第２の主面１２もしくは導光体支持部２４に着脱可能に固定する。光源５は、任意の発光色とすることができるようにカップホルダー１とは別部品とされている。任意の発光色や任意の明るさの発光とすることが容易に交換することができるようにするため、ＬＥＤ４３の発光色や輝度が異なる光源５を複数種類用意する。光源５を交換することで、青色、緑色、赤色などの好みの発光色を用意に得ることができる。 A battery (not shown) is housed in the main body 40 of the light source 5 as a power source to be supplied to the LED 43. A power cord for connecting to an external power source such as a vehicle may be connected instead of the battery. The light source 5 is detachably fixed to the second main surface 12 of the light guide body 10 or the light guide body support portion 24. The light source 5 is a separate component from the cup holder 1 so that it can have an arbitrary emission color. A plurality of types of light sources 5 having different emission colors and brightness of the LED 43 are prepared so that the emission can be easily exchanged for an arbitrary emission color or an arbitrary brightness. By exchanging the light source 5, it is possible to easily obtain a favorite emission color such as blue, green, or red.

図８は、図４のＢ部を拡大して示す概略断面図であり、第２領域１９を説明する断面図である。ＬＥＤ４３から上方に向けて発せられた光は、突起４２に設けられた略円錐形の窪みの斜面からなる円錐形反射面４５で全反射されて、突起４２の側面方向に向かう。突起４２の側面から出射した光は、入光用穴部１３の内周面から導光体１０内に入射して導光体１０内を面内方向へ伝播する。導光体１０内を面内方向へ伝播した光の中で第２領域１９に向かう光Ｌ２は、傾斜反射面１７に到達して出射部１４に向かって反射し、出射部１４からホルダ部２内に向かって光Ｌ２が出射する。傾斜反射面１７は、図７に示したように、断面において入光用穴部１３から外周端面１６に向かって上り勾配の傾斜面である。 FIG. 8 is a schematic cross-sectional view showing an enlarged portion B of FIG. 4, and is a cross-sectional view for explaining the second region 19. The light emitted upward from the LED 43 is totally reflected by the conical reflecting surface 45 formed of the slope of the substantially conical recess provided in the protrusion 42, and is directed toward the side surface of the protrusion 42. The light emitted from the side surface of the protrusion 42 enters the light guide body 10 from the inner peripheral surface of the light entry hole portion 13 and propagates in the light guide body 10 in the in-plane direction. Among the light propagating in the light guide body 10 in the in-plane direction, the light L2 heading for the second region 19 reaches the inclined reflecting surface 17 and is reflected toward the emitting portion 14, and the light L2 is reflected from the emitting portion 14 to the holder portion 2. Light L2 is emitted inward. As shown in FIG. 7, the inclined reflecting surface 17 is an inclined surface having an upward slope from the light entry hole portion 13 toward the outer peripheral end surface 16 in the cross section.

図９は、図３のＣ−Ｃ線に沿った断面図の一部を拡大して示す概略断面図であり、第１領域１８を説明する断面図である。ＬＥＤ４３から上方に向けて発せられた光は、突起４に設けられた略円錐形の窪みの斜面からなる円錐形反射面４５で全反射されて、突起４２の側面方向に向かう。突起４２の側面から出射した光は、入光用穴部１３の内周面から導光体１０内に入射して導光体１０内を面内方向へ伝播する。導光体１０内を面内方向へ伝播した光の中で、第１領域１８に向かう光Ｌ１は、傾斜反射面１７に到達して出射部１４に向かって反射し、出射部１４からホルダ部２内に向かって光Ｌ１が出射する。 FIG. 9 is a schematic cross-sectional view showing a part of the cross-sectional view taken along the line CC of FIG. 3 in an enlarged manner, and is a cross-sectional view illustrating the first region 18. The light emitted upward from the LED 43 is totally reflected by the conical reflecting surface 45 formed of the slope of the substantially conical recess provided in the protrusion 4, and is directed toward the side surface of the protrusion 42. The light emitted from the side surface of the protrusion 42 enters the light guide body 10 from the inner peripheral surface of the light entry hole portion 13 and propagates in the light guide body 10 in the in-plane direction. Among the light propagating in the light guide body 10 in the in-plane direction, the light L1 toward the first region 18 reaches the inclined reflecting surface 17 and is reflected toward the emitting portion 14, and the light L1 is reflected from the emitting portion 14 to the holder portion. Light L1 is emitted toward the inside of 2.

このとき、光Ｌ１は、入光用穴部１３の内周面から導光体１０内に入射して第１領域１８の傾斜反射面１７に向かう途中で、窪み３０を通過する。具体的には入光用穴部１３の内周面から導光体１０内に入射し、次いで窪み３０の窪み内出射面３１から窪み３０内に出射する。その後、窪み３０内に出射した光がほぼ反対側に位置する窪み内入射面３２より導光体１０内に再度、入射する。窪み内入射面３２より再入射した光Ｌ１は、傾斜反射面１７に到達して出射部１４に向かって反射し、出射部１４からホルダ部２内に向かって出射する。 At this time, the light L1 enters the light guide body 10 from the inner peripheral surface of the light entry hole portion 13 and passes through the recess 30 on the way toward the inclined reflecting surface 17 of the first region 18. Specifically, it is incident on the light guide body 10 from the inner peripheral surface of the light entry hole portion 13, and then is emitted from the recessed inner exit surface 31 of the recessed 30 into the recessed 30. After that, the light emitted into the recess 30 is incident again into the light guide body 10 from the incident surface 32 in the recess located on the substantially opposite side. The light L1 re-incident from the incident surface 32 in the recess reaches the inclined reflecting surface 17, is reflected toward the emitting portion 14, and is emitted from the emitting portion 14 toward the inside of the holder portion 2.

第１領域１８の傾斜反射面１７により反射して出射部１４に向かう光Ｌ１と、第２領域１９の傾斜反射面１７により反射して出射部１４に向かう光Ｌ２とを比較すると、第１領域１８からの出射光Ｌ２は、窪み内出射面３１および窪み内入射面３２の２つの界面において光量の損失が生じている。これらの理由により第１領域１８の出射部１４から外部に出射する光は、第２領域１９の出射部１４から外部に出射する光に比べて暗くなる。特に角部９は、入光用穴部１３から第１領域１８の傾斜反射面１７に到達するまでの光路長が、入光用穴部１３から第２領域１９の傾斜反射面１７に到達するまでの光路長に比べて長くなっているので、より一層暗くなり易い。 Comparing the light L1 reflected by the inclined reflecting surface 17 of the first region 18 toward the emitting portion 14 and the light L2 reflected by the inclined reflecting surface 17 of the second region 19 toward the emitting portion 14, the first region is compared. The amount of light L2 emitted from 18 is lost at the two interfaces of the recessed inner exit surface 31 and the recessed inner incident surface 32. For these reasons, the light emitted to the outside from the emitting unit 14 of the first region 18 is darker than the light emitted to the outside from the emitting unit 14 of the second region 19. In particular, in the corner portion 9, the optical path length from the light entry hole portion 13 to the inclined reflection surface 17 in the first region 18 reaches the inclined reflection surface 17 in the second region 19 from the light entry hole portion 13. Since it is longer than the optical path length up to, it tends to be even darker.

そこで、本実施形態においては、外周縁部全体の均一性を向上させるために、第２領域１９の傾斜反射面１７に、第１領域の反射面に比べて反射量を小さくする減反射手段が施されている。図１０は、第２領域１９の傾斜反射面１７の導光体１０の要部を拡大した断面図である。図１０は、図９のＤ部およびＥ部に相当する。図１０において破線で示す直線が、第２領域１９に形成している傾斜反射面１７と同一の角度で形成した場合の反射面である。第１領域における導光体１０には、傾斜反射面１７の一部に駄肉部１７ａを形成するとともに、湾曲面１７ｂを設けている。 Therefore, in the present embodiment, in order to improve the uniformity of the entire outer peripheral edge portion, the inclined reflecting surface 17 of the second region 19 is provided with a reducing reflection means for reducing the amount of reflection as compared with the reflecting surface of the first region. It has been subjected. FIG. 10 is an enlarged cross-sectional view of a main part of the light guide body 10 of the inclined reflecting surface 17 in the second region 19. FIG. 10 corresponds to parts D and E of FIG. The straight line shown by the broken line in FIG. 10 is a reflection surface when formed at the same angle as the inclined reflection surface 17 formed in the second region 19. The light guide body 10 in the first region is provided with a curved surface 17b as well as a waste portion 17a formed on a part of the inclined reflecting surface 17.

駄肉部１７ａは、傾斜反射面１７の基準線（図１０における破線）に対し第２の主面１２側、すなわち下側に向かって外周端面１６を延長して、内面反射をしない入射角で傾斜反射面１７に入射させることで、反射光の量を減じている。駄肉部１７ａは、第２の主面１２に平行に入射する光が臨界角を超えないようにしたものであり、本願発明における減反射手段に相当する。減反射手段は、駄肉部１７ａを形成するかわりに傾斜反射面１７の一部に黒色塗膜などの光吸収部を設けるものでも良い。導光体１０の外周縁の側面である外周端面１６と、傾斜反射面１７との境界領域に設けることが好ましい。傾斜反射面１７は外周端面１６に向かって上り勾配の傾斜面としているので最も外周端面１６側の位置において出射部１４に向かって反射する光を減ずることで出射部１４の最終的な発光面の大きさの変化、すなわち出射部１４の発光面積の変化を感じにくくすることができる。 The waste portion 17a extends the outer peripheral end surface 16 toward the second main surface 12 side, that is, downward with respect to the reference line (broken line in FIG. 10) of the inclined reflection surface 17, and has an incident angle that does not reflect the inner surface. The amount of reflected light is reduced by making it incident on the inclined reflecting surface 17. The waste portion 17a is such that the light incident parallel to the second main surface 12 does not exceed the critical angle, and corresponds to the antireflection means in the present invention. The antireflection means may be provided with a light absorbing portion such as a black coating film on a part of the inclined reflecting surface 17 instead of forming the waste portion 17a. It is preferable to provide the light guide body 10 in the boundary region between the outer peripheral end surface 16 which is the side surface of the outer peripheral edge and the inclined reflecting surface 17. Since the inclined reflecting surface 17 is an inclined surface having an upward slope toward the outer peripheral end surface 16, the light reflected toward the emitting portion 14 at the position closest to the outer peripheral end surface 16 is reduced to reduce the light reflected toward the emitting portion 14 so that the final light emitting surface of the emitting portion 14 is formed. It is possible to make it difficult to feel the change in size, that is, the change in the light emitting area of the emitting unit 14.

湾曲面１７ｂは、傾斜反射面１７の基準線（図１０における破線）に対し第１の主面１１側に向かって凹んだ湾曲面とされている。図１０に示すように、断面において第２の主面１２の外周端面１６側の位置から斜め上側に凹んだ形状とされている。入光用穴部１３を通る鉛直線上の任意の点に向かって凹んだ形状とすることで、入光用穴部１３から導光体１０内を第２の主面１２と平行となって入射する光が、出射部１４に向かって反射するのみでなく拡散して反射するようにしている。また、湾曲面１７ｂは、傾斜反射面１７における駄肉部１７ａの形成されていない領域に、入光用穴部１３側に向かって凹状の湾曲面として形成されている。具体的には、湾曲面１７ｂは、駄肉部１７ａの下方、第２の主面１２側に形成されている。 The curved surface 17b is a curved surface that is recessed toward the first main surface 11 side with respect to the reference line (broken line in FIG. 10) of the inclined reflecting surface 17. As shown in FIG. 10, in the cross section, the shape is recessed diagonally upward from the position on the outer peripheral end surface 16 side of the second main surface 12. By forming a shape that is recessed toward an arbitrary point on the vertical line passing through the light entry hole portion 13, the inside of the light guide body 10 is incident parallel to the second main surface 12 from the light entry hole portion 13. The light is not only reflected toward the emitting unit 14, but also diffused and reflected. Further, the curved surface 17b is formed as a concave curved surface toward the light entry hole portion 13 side in the region of the inclined reflection surface 17 where the waste portion 17a is not formed. Specifically, the curved surface 17b is formed below the waste portion 17a and on the second main surface 12 side.

湾曲面１７ｂを設けることなく駄肉部１７ａのみを傾斜反射面１７の一部に設けた場合には、駄肉部１７ａを設けた位置から出射部１４に向かう光が減じられる。そのため、平面視において外周縁の出射部１４の発光する幅が、本来ならば傾斜反射面に相当する幅Ｗ１が発光するところ、駄肉部に相当する幅Ｗ２だけ幅が狭くなり、［Ｗ１−Ｗ２］の幅の発光として観視される。すなわち、出射部１４の光る幅が狭くなり、外周縁全体に亘る出射部１４の均一感が損なわれる。そこで、湾曲面１７ｂを駄肉部１７ａ以外の領域に形成したことにより出射部１４からの発光は、幅Ｗ１に拡がって出射する光Ｌ２となるので外周縁全体に亘る出射部１４の幅の不均一感が損なわれることはない。また、駄肉部１７ａを設けた分だけ出射部１４に到達する光量が減じられる。これにより、第１領域１８の出射部１４からの出射光Ｌ１と光量の均一化も図ることができる。また、発光幅均一化のために、湾曲面を設けること以外に、傾斜反射面に銀塗膜などの光拡散層を形成するなどの他の光拡散手段を用いることもできる。 When only the waste portion 17a is provided on a part of the inclined reflecting surface 17 without providing the curved surface 17b, the light directed from the position where the waste portion 17a is provided toward the exit portion 14 is reduced. Therefore, in a plan view, the width of light emitted from the exit portion 14 on the outer peripheral edge is narrowed by the width W2 corresponding to the waste portion, where the width W1 originally corresponding to the inclined reflecting surface emits light. It is viewed as light emission with a width of W2]. That is, the shining width of the emitting portion 14 is narrowed, and the uniform feeling of the emitting portion 14 over the entire outer peripheral edge is impaired. Therefore, by forming the curved surface 17b in a region other than the waste portion 17a, the light emitted from the emitting portion 14 becomes the light L2 that spreads to the width W1 and is emitted, so that the width of the emitting portion 14 over the entire outer peripheral edge is not wide. The sense of uniformity is not impaired. In addition, the amount of light reaching the exit portion 14 is reduced by the amount of the waste portion 17a provided. As a result, it is possible to make the amount of light emitted from the light emitting unit 14 of the first region 18 uniform with that of the light L1. Further, in order to make the emission width uniform, other light diffusion means such as forming a light diffusion layer such as a silver coating film on the inclined reflection surface can be used in addition to providing the curved surface.

〔第２の実施の形態〕
次に第２の実施形態のカップホルダー５０について説明する。第１の実施形態のカップホルダー１は、ホルダ部２が１箇所であったが、第２の実施形態ではホルダ部５１を２箇所とし２本のペットボトルなどの飲料容器を独立に保持できる。２箇所のホルダ部は連結されている。側壁、開口および車両取り付け部などの点については第１の実施形態と同一であるので、ここでの説明は省略し、底面の形状に関して説明するものとする。また、光源についても第１の実施形態と同一のものを利用できるので、ここでの説明は省略する。 [Second Embodiment]
Next, the cup holder 50 of the second embodiment will be described. The cup holder 1 of the first embodiment has one holder portion 2, but in the second embodiment, the holder portion 51 is provided at two locations, and two beverage containers such as PET bottles can be independently held. The two holders are connected. Since the points such as the side wall, the opening, and the vehicle mounting portion are the same as those in the first embodiment, the description here will be omitted, and the shape of the bottom surface will be described. Further, since the same light source as that of the first embodiment can be used, the description here will be omitted.

図１１は、第２の実施形態のカップホルダー５０を開口側から観視した平面図である。紙面左側の第１ホルダ部５１Ａと右側の第２ホルダ部５１Ｂが連結部５２にて連結されている。導光板も第１ホルダ部５１Ａに対応する領域と第２ホルダ部５１Ｂに対応する領域とが連結された板形状をなす。また、外周縁に沿って導光体の出射部５３が形成され、その内側には底面と相似形状の遮光シート５４が配置されている。導光体を全体として板状となるように透光性樹脂材料により形成し、導光体の縁（出射部５３）は遮光シート５４に覆われておらず、ホルダ部５１（５１Ａ，５１Ｂ）内において露出している点は、第１の実施形態と同様である。 FIG. 11 is a plan view of the cup holder 50 of the second embodiment as viewed from the opening side. The first holder portion 51A on the left side of the paper and the second holder portion 51B on the right side are connected by the connecting portion 52. The light guide plate also has a plate shape in which a region corresponding to the first holder portion 51A and a region corresponding to the second holder portion 51B are connected. Further, an exit portion 53 of the light guide body is formed along the outer peripheral edge, and a light-shielding sheet 54 having a shape similar to that of the bottom surface is arranged inside the exit portion 53. The light guide body is formed of a translucent resin material so as to have a plate shape as a whole, and the edge (emission portion 53) of the light guide body is not covered with the light-shielding sheet 54, and the holder portions 51 (51A, 51B). The point of being exposed inside is the same as that of the first embodiment.

出射部５３は、第１の実施形態の出射部１４と同様に遮光シート取付部から開口側に突出して形成されている。導光体の出射部５４に対応する反対側の面には、図示しない傾斜反射面が設けられている。第１ホルダ部５１Ａおよび第２ホルダ部５１Ｂは、それぞれが略円形状をなし、それぞれの中央領域に光源を挿入する入光用穴部５５Ａ，５５Ｂが形成されている。また、第１ホルダ部５１Ａの連結部５２近傍の領域には２つの窪み５６Ａ，５６Ａが形成され、第２ホルダ部５１Ｂの連結部５２近傍の領域には２つの窪み５６Ｂ，５６Ｂが形成されている。連結部５２には、窪み５６Ａ，５６Ｂの間の位置に窪み５６Ｃ，５６Ｃが２箇所に形成されている。入光用穴部５５Ａ，５５Ｂおよび窪み５６Ａ，５６Ｂ，５６Ｃは、第１の実施形態と同様に遮光シート取付部と反対側、すなわちホルダ部５１の裏側となる表面に形成されており、遮光シート取付部側の表面に向かって凹んだ形状である。 The exiting portion 53 is formed so as to project from the light-shielding sheet mounting portion toward the opening side, similarly to the emitting portion 14 of the first embodiment. An inclined reflection surface (not shown) is provided on the surface of the light guide body on the opposite side corresponding to the exit portion 54. Each of the first holder portion 51A and the second holder portion 51B has a substantially circular shape, and holes 55A and 55B for entering light into which a light source is inserted are formed in their respective central regions. Further, two recesses 56A and 56A are formed in the region of the first holder portion 51A near the connecting portion 52, and two recesses 56B and 56B are formed in the region of the second holder portion 51B near the connecting portion 52. There is. In the connecting portion 52, recesses 56C and 56C are formed at two positions between the recesses 56A and 56B. The light entry holes 55A, 55B and the recesses 56A, 56B, 56C are formed on the surface opposite to the light-shielding sheet mounting portion, that is, the back side of the holder portion 51, as in the first embodiment. The shape is recessed toward the surface on the mounting part side.

窪み５６Ａ，５６Ｂ，５６Ｃは、導光体の外周形状のうち、第１ホルダ部５１Ａおよび第２ホルダ部５１Ｂの円形の外周部分である円弧部を連結する非円弧部５７に光を到達させるための屈折作用および反射作用を行う。第１の実施形態では出射部１４の直線部が直交する角部９の領域である第１領域１８の傾斜反射面に到達する光の入射角を制御するための屈折手段のみを設けていたが、本実施形態では、屈折手段として窪み５６Ａ，５６Ｂを設けるとともに、反射手段として窪み５６Ｃを設けている。 The recesses 56A, 56B, and 56C are for allowing light to reach the non-arc portion 57 connecting the arc portions, which are the circular outer peripheral portions of the first holder portion 51A and the second holder portion 51B, in the outer peripheral shape of the light guide body. Refracts and reflects. In the first embodiment, only the refraction means for controlling the incident angle of the light reaching the inclined reflection surface of the first region 18 which is the region of the corner portion 9 where the straight portion of the exit portion 14 is orthogonal is provided. In this embodiment, recesses 56A and 56B are provided as refraction means, and recesses 56C are provided as reflection means.

連結部５２は、第１ホルダ部５１Ａと第２ホルダ部５１Ｂとを架橋している。架橋する連結部５２は、円形の外周形状の第１ホルダ部５１Ａと第２ホルダ部５１Ｂとを連結するために屈曲部分が必要になる。連結部５２には屈曲した部分が存在する架橋構造であるため、連結部５２の領域に位置する出射部５３ａには光が届きにくい。また、第１の実施形態と同様の屈折手段を設けるのみでは十分な光量を確保しにくい。そこで、反射手段である窪み５６Ｃを設けることで、連結部５２の出射部５３ａに向かう光の量を増加することができる。窪み５６Ｃの内部には導光体の材料と屈折率差を生じさせるために大気とすればよく、形状はＶ溝でもよい。内部に反射性材料、例えば白色樹脂やアルミ蒸着膜を設けて反射させるものでも良い。 The connecting portion 52 bridges the first holder portion 51A and the second holder portion 51B. The connecting portion 52 to be crosslinked requires a bent portion in order to connect the first holder portion 51A and the second holder portion 51B having a circular outer peripheral shape. Since the connecting portion 52 has a crosslinked structure in which a bent portion exists, it is difficult for light to reach the emitting portion 53a located in the region of the connecting portion 52. Further, it is difficult to secure a sufficient amount of light only by providing the same refraction means as in the first embodiment. Therefore, by providing the recess 56C which is a reflecting means, the amount of light directed to the emitting portion 53a of the connecting portion 52 can be increased. The inside of the recess 56C may be air in order to generate a difference in refractive index from the material of the light guide, and the shape may be a V-groove. A reflective material, for example, a white resin or an aluminum vapor-deposited film may be provided inside to reflect the material.

本実施形態の窪み５６Ｃは、窪み内を空気とした溝である。第１ホルダ部５１Ａの入光用穴部５５Ａから導光体内に入射した光の一部は、窪み５６Ｃの側面にて全反射して出射部５３ａおよび他の窪み５６Ａに向けて反射する。第１ホルダ部５１Ａの入光用穴部５５Ａから導光体内に入射した光の他の一部は、窪み５６Ｃの側面のほかの部分から窪み５６Ｃ内に屈折して出射する。その光の一部は、窪み５６Ｃの側面の何れかの領域から導光体内に再度入射し、再度導光体内に入射した光の一部は、第２ホルダ部５１Ｂの内部に向かって導光する。従って、窪み５６Ｃは反射作用と屈折作用の両方の作用を奏する。 The recess 56C of the present embodiment is a groove in which the inside of the recess is made of air. A part of the light incident on the light guide body from the light entry hole 55A of the first holder 51A is totally reflected on the side surface of the recess 56C and reflected toward the exit 53a and the other recess 56A. The other part of the light incident on the light guide body from the light entry hole portion 55A of the first holder portion 51A is refracted into the recess 56C from the other portion on the side surface of the recess 56C and emitted. A part of the light is re-entered into the light guide body from any region on the side surface of the recess 56C, and a part of the light that is re-entered into the light guide body is guided toward the inside of the second holder portion 51B. do. Therefore, the recess 56C exerts both a reflective action and a refracting action.

図１１に示したように連結部５２の外周縁は、非円弧部５７とされている。窪み５６Ａ，５６Ｂ，５６Ｃを介して傾斜反射面に到達する光が、外周縁の輪郭線に対して直交もしくは直交に近づくように制御された外周縁領域が、第１領域５８である。第１ホルダ部５１Ａおよび第２ホルダ部５１Ｂの円形の外周部分である円弧部は、第２領域５９である。第２領域においては、入光用穴部５５Ａ，５５Ｂから入射した光が、窪み５６Ａ，５６Ｂ，５６Ｃを介さずに傾斜反射面に到達するようにされている。 As shown in FIG. 11, the outer peripheral edge of the connecting portion 52 is a non-arc portion 57. The first region 58 is an outer peripheral region in which the light reaching the inclined reflecting surface via the recesses 56A, 56B, and 56C is controlled to approach orthogonally or orthogonally to the contour line of the outer peripheral edge. The circular arc portion of the first holder portion 51A and the second holder portion 51B is the second region 59. In the second region, the light incident from the light entry holes 55A and 55B reaches the inclined reflecting surface without passing through the recesses 56A, 56B and 56C.

また、第２領域５９の傾斜反射面には、第１の実施形態と同様に駄肉部が形成されるとともに傾斜反射面の一部が湾曲面とされている。駄肉部を形成することで、駄肉部を形成しない場合に比べて傾斜反射面によって出射部５３に向かって反射する光量を減じることができる。湾曲部を形成することで湾曲面としない平面状の傾斜反射面とした場合に比べて反射方向を拡げることができ、出射部５３の全面から光を出射させることができる。これにより出射部は、全体として均一な幅で、輝度ムラを抑制した発光とすることができ、カップホルダーのホルダ部５１内の照明を均一化することができる。 Further, on the inclined reflection surface of the second region 59, a waste portion is formed as in the first embodiment, and a part of the inclined reflection surface is a curved surface. By forming the waste portion, the amount of light reflected toward the exit portion 53 by the inclined reflecting surface can be reduced as compared with the case where the waste portion is not formed. By forming the curved portion, the reflection direction can be expanded as compared with the case where the curved surface is not a curved surface and a flat inclined reflection surface is formed, and light can be emitted from the entire surface of the emission portion 53. As a result, the emitting portion can emit light with a uniform width as a whole and the brightness unevenness is suppressed, and the illumination inside the holder portion 51 of the cup holder can be made uniform.

〔第３の実施の形態〕
次に第３の実施形態のカップホルダーについて説明する。図１２は、第３の実施形態のカップホルダーの導光体１０を図８のＤ部に相当する位置の断面を拡大して示す断面図である。Ｄ部は第２領域における外周端部近傍の断面である。第３の実施形態のカップホルダーは、第１の実施形態のカップホルダー１の導光体１０の外周端面１６に反射部材１６Ｂを設けた点が異なる。他の点については第１の実施形態と同一であるので、ここでの説明は省略する。 [Third Embodiment]
Next, the cup holder of the third embodiment will be described. FIG. 12 is a cross-sectional view showing an enlarged cross section of the light guide body 10 of the cup holder of the third embodiment at a position corresponding to the portion D in FIG. The D portion is a cross section in the vicinity of the outer peripheral end portion in the second region. The cup holder of the third embodiment is different in that the reflective member 16B is provided on the outer peripheral end surface 16 of the light guide body 10 of the cup holder 1 of the first embodiment. Since the other points are the same as those of the first embodiment, the description thereof is omitted here.

反射部材１６Ｂは、反射率の高い銀やアルミニウムなどの反射金属を含む反射塗料、酸化バリウムや酸化チタンなどの白色セラミックを含有する白色塗料などの塗膜を外周端面１６に設けたものである。塗膜の代わりに反射テープなどを貼付したものでも良い。反射部材１６Ｂを設けることで、導光体１０内を導光してきた光の一部が外周端面１６から漏れる光を低減することができる。さらに、ホルダ部２内に収容した飲料容器６から飲料容器６内の液体が零れたときに、導光体１０の外周端面１６に液体が付着して出射部１４から出射する光量が変化して、外周縁全体の発光の均一性が低下するのを抑止することができる。また、反射部材１６Ｂは、傾斜反射面１７をも覆うように設けることもできる。 The reflective member 16B is provided with a coating film such as a reflective paint containing a reflective metal such as silver or aluminum having high reflectance and a white paint containing a white ceramic such as barium oxide or titanium oxide on the outer peripheral end surface 16. A reflective tape or the like may be attached instead of the coating film. By providing the reflective member 16B, it is possible to reduce the light that a part of the light that has guided the inside of the light guide body 10 leaks from the outer peripheral end surface 16. Further, when the liquid in the beverage container 6 spills from the beverage container 6 housed in the holder portion 2, the liquid adheres to the outer peripheral end surface 16 of the light guide body 10 and the amount of light emitted from the exit portion 14 changes. , It is possible to suppress a decrease in the uniformity of light emission over the entire outer peripheral edge. Further, the reflecting member 16B may be provided so as to cover the inclined reflecting surface 17.

〔第４の実施の形態〕
次に第４の実施形態のカップホルダーについて説明する。図１３は、第４の実施形態のカップホルダーの導光体６０を図８のＤ部に相当する位置の断面を拡大して示す断面図である。Ｄ部は第２領域における外周端部近傍の断面である。第４の実施形態のカップホルダーは、第１の実施形態のカップホルダー１に比べて、外周端面６６に溝６５を設けた点が異なる。第１の実施形態と同一である点についての説明は省略する。 [Fourth Embodiment]
Next, the cup holder of the fourth embodiment will be described. FIG. 13 is a cross-sectional view showing an enlarged cross section of the light guide body 60 of the cup holder of the fourth embodiment at a position corresponding to the portion D in FIG. The D portion is a cross section in the vicinity of the outer peripheral end portion in the second region. The cup holder of the fourth embodiment is different from the cup holder 1 of the first embodiment in that a groove 65 is provided on the outer peripheral end surface 66. The description of the same points as in the first embodiment will be omitted.

導光体６０は、ホルダ部の開口側の板面である第１の主面に遮光シート取付部６１と出射部６４が形成されている。出射部６４は、導光体６０の外周縁の全周に形成されている。導光体６０は、導光体６０の板面と直交する方向に延びる外周端面６６（側面）が、図示しないホルダ部の内周と接するようにして、ホルダ部内に設置されている。第１の主面と反対側の板面である第２の主面６２の最も外周端面６６側には、傾斜端面６７が形成されている。第２の主面６２の出射部６４に対応する位置もしくはその近傍には、傾斜端面６７から離間して溝６５が形成されている。 The light guide body 60 has a light-shielding sheet mounting portion 61 and an emitting portion 64 formed on a first main surface which is a plate surface on the opening side of the holder portion. The emitting portion 64 is formed on the entire circumference of the outer peripheral edge of the light guide body 60. The light guide body 60 is installed in the holder portion so that the outer peripheral end surface 66 (side surface) extending in a direction orthogonal to the plate surface of the light guide body 60 is in contact with the inner circumference of the holder portion (not shown). An inclined end surface 67 is formed on the outermost outermost end surface 66 side of the second main surface 62, which is a plate surface opposite to the first main surface. A groove 65 is formed at or near the position corresponding to the exit portion 64 of the second main surface 62, away from the inclined end surface 67.

溝６５は、第２の主面６２側に拡開した断面略台形形状とされ、中央領域側側面６５ａ、天井面６５ｂおよび外周端面側側面６５ｃからなる。図示しない光源は、図１３における紙面右側に配置され、導光体６０の内部を紙面右側から左側に向けて導光する。導光体６０内を第２の主面６２と略平行に進行してきた光の一部は、中央領域側側面６５ａにて屈折して溝６５内に出射する。中央領域側側面６５ａから溝６５内に出射した光は、一部の光は天井面６５ｂに向かう光Ｌ３となり、天井面６５ｂから導光体６０内に再入射して出射部６４に向かう形状に形成されている。また、中央領域側側面６５ａから溝６５内に出射した光の他の一部は、外周端面側側面６５ｃに向かう光Ｌ４となり、外周端面側側面６５ｃから導光体６０内に再入射する入射角となるように外周端面側側面６５ｃは形成されている。外周端面側側面６５ｃから導光体６０内に再入射した光の一部は、傾斜端面６７にて反射した後に出射部６４に向かう。 The groove 65 has a substantially trapezoidal cross section widened toward the second main surface 62, and is composed of a central region side side surface 65a, a ceiling surface 65b, and an outer peripheral end surface side side surface 65c. A light source (not shown) is arranged on the right side of the paper surface in FIG. 13, and guides the inside of the light guide body 60 from the right side to the left side of the paper surface. A part of the light traveling in the light guide body 60 substantially parallel to the second main surface 62 is refracted at the side surface 65a on the central region side and emitted into the groove 65. The light emitted from the side surface 65a on the central region side into the groove 65 becomes a light L3 toward the ceiling surface 65b, and is re-entered into the light guide body 60 from the ceiling surface 65b so as to be directed toward the exit portion 64. It is formed. Further, the other part of the light emitted from the side surface 65a on the central region side into the groove 65 becomes the light L4 toward the side surface 65c on the outer peripheral end surface side, and the incident angle re-incidents into the light guide body 60 from the side surface 65c on the outer peripheral end surface side. The outer peripheral end face side side surface 65c is formed so as to be. A part of the light re-entered into the light guide body 60 from the outer peripheral end face side side surface 65c is reflected by the inclined end face 67 and then heads toward the exit portion 64.

傾斜端面６７は、第１の実施形態の傾斜端面１７に比べて外周端面６６側に向かう上り勾配の角度を急峻なものとすることで出射部６４に向かって全反射するようにしている。
第１の実施形態のカップホルダー１では、第２領域１９の傾斜反射面１７に駄肉部１７ａおよび湾曲面１７ｂを設けることで、第２領域１９の出射部１４からの出射光と、第１領域１８の出射部１４からの出射光との光量の均一化を図っている。また、ホルダ部２の開口２１側から観視したときにおける出射部１４の幅の均一感が損なわれるのを抑止していた。本実施形態では、第２領域における出射部６４から導光体６０の外部に出射する光Ｌ３，Ｌ４を、前記溝６５による屈折作用で天井面６５ｂを通って導光体６０内に入射させて出射部６４に向かう光Ｌ３と、傾斜端面６７にて反射させて出射部６４に向かう光Ｌ４の異なる２つの光路の光の合成光を出射させている。屈折作用にて出射部６４に向かう光Ｌ３は、全反射を用いる場合に比べて屈折作用を生じさせるための界面を含むため、光量の損失が生じる。そこで、本実施形態では、傾斜端面６７にて反射させて出射部６４に向かう光Ｌ４については、傾斜端面６７の一部に実施形態１と同様の湾曲面のみを形成し、駄肉部を形成していない。なお、傾斜端面６７の湾曲面は図示を省略している。傾斜面の一部を湾曲面とすることで、屈折作用により光量を減じている光Ｌ３と、湾曲面により出射部６４に到達する光が減じられるとともに拡散化を図った光Ｌ４との合成光が、出射部６４から外部に出射される。 The inclined end surface 67 is made to have a steeper ascending angle toward the outer peripheral end surface 66 side as compared with the inclined end surface 17 of the first embodiment so that total reflection is made toward the exit portion 64.
In the cup holder 1 of the first embodiment, by providing the slanted reflective surface 17 of the second region 19 with the waste portion 17a and the curved surface 17b, the light emitted from the emitting portion 14 of the second region 19 and the first The amount of light emitted from the emitting portion 14 of the region 18 is made uniform. In addition, it is possible to prevent the holder portion 2 from being impaired in the uniform width of the exit portion 14 when viewed from the opening 21 side. In the present embodiment, the lights L3 and L4 emitted from the exit portion 64 in the second region to the outside of the light guide body 60 are made to enter the light guide body 60 through the ceiling surface 65b by the refraction action of the groove 65. The combined light of the light L3 toward the exit portion 64 and the light of two different optical paths of the light L4 reflected by the inclined end face 67 and directed toward the exit portion 64 is emitted. Since the light L3 directed to the exit portion 64 by the refraction action includes an interface for causing the refraction action as compared with the case of using total reflection, a loss of light amount occurs. Therefore, in the present embodiment, for the light L4 that is reflected by the inclined end surface 67 and heads toward the exit portion 64, only a curved surface similar to that of the first embodiment is formed on a part of the inclined end surface 67 to form a waste portion. Not done. The curved surface of the inclined end surface 67 is not shown. By making a part of the inclined surface a curved surface, the combined light of the light L3 whose amount of light is reduced by the refraction action and the light L4 whose light reaching the exit portion 64 is reduced and diffused by the curved surface. Is emitted to the outside from the emitting unit 64.

これにより、導光体６０の外周縁の全周に形成された出射部６４のうち、明るくなりやすい第２領域においては、上記した溝６５および傾斜端面６７からなる減反射手段により出射光Ｌ３，Ｌ４の合成光量が減じられるので、第１領域における出射光量と第２領域における出射光量の光量差が小さくなり均一性が向上することができ得る。 As a result, in the second region of the emitting portion 64 formed on the entire outer peripheral edge of the light guide body 60, which tends to be bright, the emitted light L3 by the reduced reflection means including the groove 65 and the inclined end surface 67 described above. Since the combined light amount of L4 is reduced, the difference in light amount between the emitted light amount in the first region and the emitted light amount in the second region becomes small, and the uniformity can be improved.

さらに、ホルダ部２内に収容した飲料容器６から飲料容器６内の液体が零れたときに、導光体６０の外周端面６６に液体が付着して出射部６４から出射する光量が減少した場合であっても、溝６５による屈折作用によって出射部６４から外部に出射するようにしているので、外周端面６６の汚れの影響を受けることがない。飲料の零れが問題となりやすい用途の場合には、溝６５を第２領域のみでなく第１領域にも形成すれば、外周端面６６の汚れによる出射光量の低下することを抑止することができる。 Further, when the liquid in the beverage container 6 spills from the beverage container 6 housed in the holder portion 2, the liquid adheres to the outer peripheral end surface 66 of the light guide body 60 and the amount of light emitted from the exit portion 64 decreases. Even so, since the light is emitted from the exit portion 64 to the outside by the refraction action of the groove 65, it is not affected by the dirt on the outer peripheral end surface 66. In the case of an application in which spillage of a beverage is likely to be a problem, if the groove 65 is formed not only in the second region but also in the first region, it is possible to prevent a decrease in the amount of emitted light due to dirt on the outer peripheral end surface 66.

上記した実施形態に沿って、本発明を説明したが、本発明はこれらに制限されるものではない。たとえば、エアコンの吹き出し口に取り付けるタイプのカップホルダーとしたが、ホルダ部の底部を車室内のパネルやコンソールボックスなどに固定するものでも良い。また、上記実施形態では、減反射手段および湾曲面は、屈折手段を介さずに入光用穴部からの光が到達する第１領域における傾斜反射面に設ける構成としたが、屈折手段を介して入光用穴部からの光が到達する第２領域内において、入光用穴部からの距離が相対的に近く明るくなりやすい部分領域にも設けることが可能である。 Although the present invention has been described with reference to the above embodiments, the present invention is not limited thereto. For example, the cup holder is a type that is attached to the air outlet of an air conditioner, but the bottom of the holder may be fixed to a panel in the vehicle interior, a console box, or the like. Further, in the above embodiment, the reducing reflection means and the curved surface are provided on the inclined reflecting surface in the first region where the light from the light entry hole reaches without passing through the refraction means, but through the refraction means. In the second region where the light from the light entry hole reaches, it is possible to provide it in a partial region where the distance from the light entry hole is relatively short and it tends to be bright.

板形状の導光体を用いて外周縁の出射部から発光させる照明装置において、発光させたい外周縁の範囲内に円弧部と非円弧部とを含み、ムラのない均一な出射部が必要な用途にも適用できる。 In a lighting device that emits light from an exit portion of the outer peripheral edge using a plate-shaped light guide, it is necessary to include an arc portion and a non-arc portion within the range of the outer peripheral edge to be emitted, and to have a uniform emission portion without unevenness. It can also be applied to applications.

１…カップホルダー
２…ホルダ部
３…車両取り付け部
４…本体
５…光源
６…飲料容器（カップ）
７…円弧部
８,８’…直線部（非円弧部）
９…角部
１０…導光体
１１…第１の主面
１２…第２の主面
１３…入光用穴部
１４…出射部
１６…外周端面
１７…傾斜反射面
１７ａ…駄肉部（減反射手段）
１７ｂ…湾曲面
１８…第１領域
１９…第２領域
２１…開口
２２…底面
２３…側壁
２４…導光体支持部
２５…遮光シート
２６…底板
３０…窪み（屈折手段）
４１…レンズ部
４３…ＬＥＤ
Ｌ１，Ｌ２，Ｌ３，Ｌ４…光線 1 ... Cup holder 2 ... Holder part 3 ... Vehicle mounting part 4 ... Main body 5 ... Light source 6 ... Beverage container (cup)
7 ... Arc part 8,8'... Straight part (non-arc part)
9 ... Corner portion 10 ... Light guide body 11 ... First main surface 12 ... Second main surface 13 ... Light entry hole portion 14 ... Exit portion 16 ... Outer peripheral end surface 17 ... Inclined reflection surface 17a ... Waste portion (reduced) Reflective means)
17b ... Curved surface 18 ... First region 19 ... Second region 21 ... Opening 22 ... Bottom surface 23 ... Side wall 24 ... Light guide body support 25 ... Light-shielding sheet 26 ... Bottom plate 30 ... Recess (refraction means)
41 ... Lens unit 43 ... LED
L1, L2, L3, L4 ... Rays

Claims (6)

凹状のホルダ部を備えたカップホルダーであって、
前記ホルダ部は、被収容物を抜き差しする開口と、前記被収容物を支持する底面を有する底板と、側壁とによって凹状の形状とされ、
前記底板は、前記底面に沿った板状の光透過性樹脂材料からなる導光体と、当該導光体の一対の板面のうち前記導光体の前記開口側に位置する第１の主面の一部を覆う遮蔽シートと、前記導光体を支える導光体支持部とを有し、
前記導光体は、光源からの光を入光する入光用穴部と、前記入光用穴部から当該導光体内に入射した光を当該導光体の外側へ出射させる出射部と、前記入光用穴部から当該導光体内に入射した光を前記出射部に向かって内面反射させる傾斜反射面と、前記遮蔽シートを取り付ける遮蔽シート取付部とが形成されており、
前記入光用穴部は、前記第１の主面と反対側の第２の主面から凹む穴であって、前記ホルダ部の中央領域に位置し、
前記出射部は、前記導光体の外周縁に沿って形成され、前記第１の主面の外周縁において前記開口側に向かって突出しており、
前記傾斜反射面は、前記導光体の外周縁に沿って形成され、前記入光用穴部から外周端面に向かって上り勾配の傾斜面であり、
前記底板は、前記開口側から観視したときの平面形状が、前記外周縁に円弧部と、非円弧部と、角部とを有し、
前記第２の主面には、前記入光用穴部と前記角部との間に前記傾斜反射面に対する入射角を制御するための屈折手段を備え、
前記傾斜反射面は、前記入光用穴部から当該導光体内に入射した光が、前記屈折手段を介して前記入光用穴部から前記傾斜反射面に到達する第１領域と、前記屈折手段を介さずに前記入光用穴部から前記傾斜反射面に到達する第２領域を備え、
前記第２領域は、前記第１領域に比べて反射量を小さくする減反射手段を備える、
ことを特徴とするカップホルダー。 A cup holder with a concave holder
The holder portion has a concave shape due to an opening for inserting and removing the object to be contained, a bottom plate having a bottom surface for supporting the object to be contained, and a side wall.
The bottom plate is a light guide body made of a plate-shaped light-transmitting resin material along the bottom surface, and a first main main body located on the opening side of the light guide body among a pair of plate surfaces of the light guide body. It has a shielding sheet that covers a part of the surface and a light guide body support portion that supports the light guide body.
The light guide includes a light entry hole for entering light from a light source, an exit portion for emitting light incident into the light guide body from the light entry hole to the outside of the light guide. An inclined reflecting surface that internally reflects the light incident on the light guide body from the light entry hole portion toward the exit portion, and a shielding sheet mounting portion for mounting the shielding sheet are formed.
The light entrance hole portion is a hole recessed from the second main surface opposite to the first main surface, and is located in the central region of the holder portion.
The exit portion is formed along the outer peripheral edge of the light guide body, and projects toward the opening side on the outer peripheral edge of the first main surface.
The inclined reflection surface is formed along the outer peripheral edge of the light guide body, and is an inclined surface having an upward gradient from the light entry hole portion toward the outer peripheral end surface.
The bottom plate has an arc portion, a non-arc portion, and a corner portion on the outer peripheral edge in a planar shape when viewed from the opening side.
The second main surface is provided with a refraction means for controlling an incident angle with respect to the inclined reflection surface between the light entry hole portion and the corner portion.
The inclined reflection surface includes a first region in which light incident on the light guide body from the light entry hole reaches the inclined reflection surface from the light entry hole via the refraction means, and the refraction. It is provided with a second region that reaches the inclined reflecting surface from the light entry hole portion without means.
The second region includes a reflection-reducing means for reducing the amount of reflection as compared with the first region.
A cup holder that features that. 前記屈折手段は、前記第２の主面に設けた窪みの側面であり、前記入光用穴部から当該導光体内に入射した光が前記窪み内に出射する窪み内出射面と、前記窪み内出射面から窪み内に出射した光が前記導光体内に入射する窪み内入射面とを備える
ことを特徴とする請求項１に記載のカップホルダー。 The refraction means is a side surface of a recess provided on the second main surface, and is an exit surface in the recess in which light incident on the light guide body from the light entry hole is emitted into the recess, and the recess. The cup holder according to claim 1, wherein the light emitted from the inner exit surface into the recess includes an incident surface inside the recess that is incident on the light guide body. 前記減反射手段は、前記傾斜反射面の一部に光吸収部もしくは駄肉部を有することを特徴とする請求項１または請求項２に記載のカップホルダー。 The cup holder according to claim 1 or 2, wherein the antireflection means has a light absorbing portion or a thin portion on a part of the inclined reflecting surface. 前記減反射手段は、前記導光体の外周縁の側面と前記傾斜反射面との境界領域に位置することを特徴とする請求項３に記載のカップホルダー。 The cup holder according to claim 3, wherein the antireflection means is located at a boundary region between the side surface of the outer peripheral edge of the light guide and the inclined reflection surface. 前記第２領域は、前記傾斜反射面の少なくとも一部を前記入光用穴部側に凹の形状とした湾曲面とを備えることを特徴とする請求項１乃至請求項４のいずれかに記載のカップホルダー。 The second region according to any one of claims 1 to 4, wherein at least a part of the inclined reflecting surface is provided with a curved surface having a concave shape on the light entry hole side. Cup holder. 前記減反射手段は、前記傾斜反射面の一部領域に駄肉部を有し、
前記傾斜反射面において前記駄肉部の形成されていない領域において、前記入光用穴部側に凹の形状とした湾曲面を備えることを特徴とする請求項３乃至請求項５のいずれかに記載のカップホルダー。 The antireflection means has a wall portion in a part of the inclined reflection surface, and has a wall portion.
3. The described cup holder.
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WO2014165597A2 (en) 2013-04-02 2014-10-09 Johnson Controls Technology Company Illuminated cup holder assembly
TWI563203B (en) * 2013-09-18 2016-12-21 Nifco Inc Illumination device
JP6338932B2 (en) * 2014-05-28 2018-06-06 カルソニックカンセイ株式会社 Cup holder
US9539942B2 (en) * 2014-07-28 2017-01-10 Ford Global Technologies, Llc Cup holder illumination
JP6443682B2 (en) * 2015-04-15 2018-12-26 カルソニックカンセイ株式会社 LIGHTING DEVICE FOR VEHICLE AND CUP HOLDER
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JP6624991B2 (en) 2016-03-24 2019-12-25 スタンレー電気株式会社 Light guide lens and lighting device having the same
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JP6783433B2 (en) * 2017-06-23 2020-11-11 豊田合成株式会社 Cup holder
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