JP2001301782A - Bottle cap - Google Patents

Bottle cap

Info

Publication number
JP2001301782A
JP2001301782A JP2000116255A JP2000116255A JP2001301782A JP 2001301782 A JP2001301782 A JP 2001301782A JP 2000116255 A JP2000116255 A JP 2000116255A JP 2000116255 A JP2000116255 A JP 2000116255A JP 2001301782 A JP2001301782 A JP 2001301782A
Authority
JP
Japan
Prior art keywords
cap
outer peripheral
bottle
peripheral direction
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000116255A
Other languages
Japanese (ja)
Other versions
JP4080134B2 (en
Inventor
Toshio Adachi
俊雄 安達
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2000116255A priority Critical patent/JP4080134B2/en
Publication of JP2001301782A publication Critical patent/JP2001301782A/en
Application granted granted Critical
Publication of JP4080134B2 publication Critical patent/JP4080134B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Dry Development In Electrophotography (AREA)
  • Closures For Containers (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a bottle cap capable of maintaining a press fitting margin even in the case of the outer diametral deformation of the cap due to fluctuations in a temperature and holding a sealed state of a bottle. SOLUTION: The bottle cap is provided with an elastic member (11) in the recessed interior of the recess-shaped cap (12) for sealing an opening of a bottle so that the elastic member (11) applied pressure to the cap (12) in the outer circumferential direction of the cap (12) from the inside thereof.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明はボトルキャップに関
し、詳細にはトナー、現像剤等の粉体用ボトルのキャッ
プの構造に関する。[0001] 1. Field of the Invention [0002] The present invention relates to a bottle cap, and more particularly, to the structure of a bottle cap for powder such as toner and developer.

【０００２】[0002]

【従来の技術】現在、感光体に静電潜像を形成し、この
潜像を帯電している着色粒子によって得られたトナーか
らなる像を転写紙へ転写する電子写真法を利用した複写
機、ファクシミリ、プリンタなどの電子写真式画像形成
装置が広く使用されている。この電子写真式画像形成装
置において、現像部からトナーが消費されてトナーがな
くなると、トナーを補給しなければならない。トナーの
補給は、トナーを収納するトナーボトルを画像形成装置
にセットし、装置内に備わっているコレットチャットが
トナーボトルのトナー供給口を密閉している内キャップ
の突起を保持して引き抜くことによってトナーボトル内
のトナーを充填して行われる。トナーボトルの内キャッ
プの材料には、ポリエチレン等の柔軟性の高いプラスチ
ックが使用されており、トナーボトルの内キャップをト
ナーボトルのトナー供給口の内周に設けられたスペーサ
部に圧入して通常０．５〜０．８ｍｍ程度の圧入代を維
持して閉栓状態を保っている。2. Description of the Related Art At present, a copying machine using an electrophotographic method for forming an electrostatic latent image on a photoreceptor and transferring an image composed of toner obtained by colored particles charging the latent image to transfer paper. 2. Description of the Related Art Electrophotographic image forming apparatuses such as printers, facsimile machines, and printers are widely used. In this electrophotographic image forming apparatus, when the toner is consumed from the developing unit and runs out of toner, the toner must be supplied. To supply toner, set the toner bottle containing the toner in the image forming apparatus, and the collet chat provided inside the apparatus pulls out while holding the projection of the inner cap that seals the toner supply port of the toner bottle. This is performed by filling the toner in the toner bottle. Highly flexible plastic such as polyethylene is used for the material of the inner cap of the toner bottle, and the inner cap of the toner bottle is usually pressed into the spacer provided on the inner periphery of the toner supply port of the toner bottle. The plugging state is maintained by maintaining a press-fit margin of about 0.5 to 0.8 mm.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、このス
ペーサ部の材料には寸法精度の高いポリカーボネート等
が使用されているために、トナーボトルが４０℃程度の
高温で長時間保管されると、スペーサ部と内キャップの
各膨張率の差等によりポリエチレン性の内キャップが変
形して圧入部の外径が小さくなり、閉栓状態が不完全と
なって閉栓機能を果たさなくなるという問題点が生じて
しまう。However, since polycarbonate or the like having high dimensional accuracy is used for the material of the spacer portion, if the toner bottle is stored at a high temperature of about 40 ° C. for a long time, the spacer portion will not be used. Due to the difference between the expansion coefficients of the inner cap and the inner cap, the outer diameter of the press-fit portion is reduced due to the deformation of the inner cap made of polyethylene, resulting in a problem that the plugging state is incomplete and the plugging function is not fulfilled.

【０００４】本発明はこれらの問題点を解決するための
ものであり、凹形状のボトルキャップの外径を押し広げ
ようとする圧力をキャップの内側に加える弾性部材をキ
ャップの凹内部に設け、温度変化によってキャップの外
径が変形しても圧入代を維持し閉栓状態を保持できるボ
トルキャップを提供することを目的とする。The present invention has been made to solve these problems, and an elastic member for applying a pressure for expanding the outer diameter of a concave bottle cap to the inside of the cap is provided inside the concave portion of the cap. It is an object of the present invention to provide a bottle cap that can maintain a press-fit margin and maintain a closed state even when the outer diameter of the cap is deformed due to a temperature change.

【０００５】[0005]

【課題を解決するための手段】前記問題点を解決するた
めに、本発明のボトルキャップは、ボトルの開口部を閉
栓する凹形状のキャップの凹内部に、キャップの内側か
ら外周方向へ圧力を加える弾性部材を設けたことに特徴
がある。よって、温度変化によってキャップの外径が変
形しても圧入代を維持し閉栓状態を保持できる。In order to solve the above-mentioned problems, a bottle cap according to the present invention is configured such that a pressure is applied from the inside of the cap to the outer periphery of the inside of the recess of the concave cap for closing the opening of the bottle. It is characterized in that an additional elastic member is provided. Therefore, even if the outer diameter of the cap is deformed due to a temperature change, the press-fit margin can be maintained and the plugged state can be maintained.

【０００６】また、弾性部材はコイルバネであり、この
コイルバネの螺旋中心からの放射方向への弾性力でキャ
ップの内側から外周方向へ圧力を加えることにより、あ
るいはこのコイルバネが伸張する方向への弾性力でキャ
ップの内側から外周方向へ圧力を加えることにより、温
度変化によってキャップの外径が変形しても圧入代を維
持し閉栓状態を保持できる。The elastic member is a coil spring. The elastic force in the radial direction from the spiral center of the coil spring applies a pressure from the inside of the cap to the outer periphery, or the elastic force in the direction in which the coil spring extends. By applying pressure from the inside of the cap to the outer periphery in the above manner, even if the outer diameter of the cap is deformed due to a temperature change, the press-fit margin can be maintained and the closed state can be maintained.

【０００７】更に、弾性部材は長手方向の面の少なくと
も一部が前記キャップの内側壁に接する板状又は線状の
バネであり、このバネの外周方向への弾性力で前記キャ
ップの内側から外周方向へ圧力を加えることにより、あ
るいは弾性部材は外周方向へ広がった複数の弾性板部材
を含んで構成するさらバネであり、各弾性板部材の外周
方向への弾性力でキャップの内側から外周方向へ圧力を
加えることにより、温度変化によってキャップの外径が
変形しても圧入代を維持し閉栓状態を保持できる。Further, the elastic member is a plate-like or linear spring whose at least a part of its longitudinal surface is in contact with the inner side wall of the cap. The elastic member is a flat spring that includes a plurality of elastic plate members that expand in the outer peripheral direction by applying pressure in the direction, and the elastic force in the outer peripheral direction of each elastic plate member causes the elastic member to move from the inside of the cap to the outer peripheral direction. By applying pressure to the cap, even if the outer diameter of the cap is deformed due to a temperature change, the press-fitting margin can be maintained and the closed state can be maintained.

【０００８】また、弾性部材はリング状バネ部材であ
り、このリングバネ部材を変位させたリング中心方向の
逆方向への弾性力で、あるいはこのリングバネ部材の平
面形状が多角形であれば各角がキャップの内側壁に接し
て各辺を成す部材を変位させた方向の逆方向への弾性力
で、キャップの内側から外周方向へ圧力を加えることに
より、温度変化によってキャップの外径が変形しても圧
入代を維持し閉栓状態を保持できる。The elastic member is a ring-shaped spring member, and each angle is determined by an elastic force in a direction opposite to the center direction of the ring by displacing the ring spring member, or if the planar shape of the ring spring member is a polygon, each angle is formed. By applying pressure from the inside of the cap to the outer periphery with the elastic force in the direction opposite to the direction in which the members forming each side are displaced in contact with the inner wall of the cap, the outer diameter of the cap is deformed due to temperature change Also, the press-fit amount can be maintained and the plugged state can be maintained.

【０００９】[0009]

【発明の実施の形態】本発明のボトルキャップは、ボト
ルの開口部を閉栓する凹形状のキャップの凹内部に、キ
ャップの内側から外周方向へ圧力を加える弾性部材を設
けた。よって、温度変化によってキャップの外径が変形
しても圧入代を維持し閉栓状態を保持できる。BEST MODE FOR CARRYING OUT THE INVENTION The bottle cap of the present invention is provided with an elastic member for applying pressure from the inside of the cap to the outer peripheral direction inside the recess of the concave cap for closing the opening of the bottle. Therefore, even if the outer diameter of the cap is deformed due to a temperature change, the press-fit margin can be maintained and the plugged state can be maintained.

【００１０】[0010]

【実施例】図１は本発明の第１の実施例に係るボトルキ
ャップの構造を示す図である。図１の（ａ）は本実施例
のボトルキャップの斜視図であり、図１の（ｂ）は本実
施例のコイルバネ装着時のボトルキャップの断面図であ
る。同図の（ａ），（ｂ）に示すように、凹形状のキャ
ップ１２の凹内部には立体的に螺旋状に巻いたコイルバ
ネ１１が装填される。ここで、このコイルバネ１１の開
放状態の外径φＡは、キャップ１２の内径φＢよりも大
きい。そして、コイルバネ１１の外径φＡがキャップ１
２の内径φＢ以下になるようにコイルバネ１１を外周方
向から螺旋中心方向へ（図中矢印ａの方向）圧縮して、
キャップ１２の凹内部に装填する。よって、図１の
（ｂ）に示すように、コイルバネ１１は矢印方向、つま
り外周方向へ押し広げようとする圧力をキャップ１２の
内側壁に加えることにより、温度変化による塑性変形で
キャップ１２自体の外径φＣが小さくなってもコイルバ
ネ１１の螺旋中心から放射方向への弾性力で外周方向に
広げられて圧入代を維持し閉栓状態を保持できる。な
お、本実施例のように立体的に螺旋状に巻いたコイルバ
ネを用いたが、平面的に螺旋状に巻いた渦巻きバネを用
い、径方向の変位による弾性力として外周方向へ押し広
げようとする圧力をキャップの内側壁に加えることでも
同様な効果を得られる。FIG. 1 is a view showing the structure of a bottle cap according to a first embodiment of the present invention. FIG. 1A is a perspective view of the bottle cap of the present embodiment, and FIG. 1B is a cross-sectional view of the bottle cap when the coil spring of the present embodiment is mounted. As shown in FIGS. 3A and 3B, a coil spring 11 wound three-dimensionally and spirally is loaded in the concave portion of the concave cap 12. Here, the outer diameter φA of the coil spring 11 in the open state is larger than the inner diameter φB of the cap 12. The outer diameter φA of the coil spring 11 is
2, the coil spring 11 is compressed from the outer peripheral direction toward the spiral center (in the direction of arrow a in the figure) so as to be equal to or less than the inner diameter φB.
The cap 12 is loaded inside the recess. Therefore, as shown in FIG. 1B, the coil spring 11 applies a pressure to push and spread in the direction of the arrow, that is, the outer peripheral direction, to the inner wall of the cap 12, so that the cap 12 itself is plastically deformed due to a temperature change. Even if the outer diameter φC becomes smaller, the coil spring 11 is expanded in the outer peripheral direction by the elastic force in the radial direction from the center of the helix, so that the press-in allowance is maintained and the plugged state can be maintained. Although a coil spring wound spirally in a three-dimensional manner was used as in this embodiment, a spiral spring wound spirally in a plane was used, and an elastic force due to radial displacement was used to push the spring outward. A similar effect can be obtained by applying a pressure to the inner wall of the cap.

【００１１】図２は本発明の第２の実施例に係るボトル
キャップの構造を示す図である。図２の（ａ）は本実施
例のボトルキャップの斜視図であり、図２の（ｂ）は板
バネの平面図であり、図２の（ｃ）は本実施例の板バネ
装着時のボトルキャップの断面図である。同図の
（ａ），（ｃ）に示すように、凹形状のキャップ１２の
凹内部には板バネ２１が装填される。ここで、この板バ
ネ２１の開放状態の外径φＡは、キャップ１２の内径φ
Ｂよりも大きい。そして、図２の（ｂ）に示すように、
板バネ２１の外径φＡがキャップ１２の内径φＢ以下に
なるように板バネ２１を外周方向から中心方向へ（図中
矢印ｂの方向）押えて、キャップ１２の凹内部に装填す
る。よって、図２の（ｃ）に示すように、板バネ２１は
矢印方向、つまり外周方向へ押し広げようとする圧力を
キャップ１２の内側壁に加えることにより、温度変化に
よる塑性変形でキャップ１２自体の外径φＣが小さくな
っても板バネ２１の弾性力で外周方向に広げられて圧入
代を維持し閉栓状態を保持できる。なお、本実施例のよ
うな板バネ２１の端部をつないで継ぎ目のないリング状
にした輪でもよく、リングの形状を中心方向へ変位させ
てキャップ１２の凹内部に装填させても同様な効果が得
られる。また、本実施例のような板バネではなく、ワイ
ヤ状のバネでもよい。FIG. 2 is a view showing the structure of a bottle cap according to a second embodiment of the present invention. FIG. 2A is a perspective view of the bottle cap of the present embodiment, FIG. 2B is a plan view of the leaf spring, and FIG. It is sectional drawing of a bottle cap. As shown in (a) and (c) of the same figure, a leaf spring 21 is loaded inside the concave portion of the concave cap 12. Here, the outer diameter φA of the open state of the leaf spring 21 is the inner diameter φ of the cap 12.
It is larger than B. Then, as shown in FIG.
The leaf spring 21 is pressed from the outer peripheral direction toward the center (in the direction of the arrow b in the figure) so that the outer diameter φA of the leaf spring 21 becomes equal to or less than the inner diameter φB of the cap 12, and is loaded into the concave portion of the cap 12. Therefore, as shown in FIG. 2C, the leaf spring 21 applies a pressure to push and spread in the direction of the arrow, that is, in the outer peripheral direction to the inner wall of the cap 12, so that the cap 12 itself is plastically deformed due to a temperature change. Even if the outer diameter φC of the plate spring becomes small, it can be expanded in the outer peripheral direction by the elastic force of the leaf spring 21 to maintain the press-fitting allowance and maintain the closed state. In addition, a ring formed by connecting the ends of the leaf spring 21 as in this embodiment and having a seamless ring shape may be used, and the ring may be displaced in the center direction and loaded into the concave portion of the cap 12. The effect is obtained. Further, instead of a leaf spring as in this embodiment, a wire-shaped spring may be used.

【００１２】図３は本発明の第３の実施例に係るボトル
キャップの構造を示す図である。図３の（ａ）は本実施
例のボトルキャップの平面図であり、図３の（ｂ）は本
実施例のコイルバネ装着時のボトルキャップの断面図で
ある。同図の（ａ），（ｂ）に示すように、凹形状のキ
ャップ１２の凹内部には４個のコイルバネ３１が備えら
れている。この各コイルバネ３１は、キャップ１２の中
心に設けられている突起３２とキャップ１２の内壁との
間にそれぞれ設けられている。そして、図３の（ａ），
（ｂ）に示すように、コイルバネ３１の弾性力が、矢印
方向、つまり外周方向へ押し広げようとする圧力として
キャップ１２の内側壁に加わることにより、温度変化に
よる塑性変形でキャップ１２自体の外径φＣが小さくな
ってもコイルバネ３１の弾性力で外周方向に広げられて
圧入代を維持し閉栓状態を保持できる。FIG. 3 is a view showing the structure of a bottle cap according to a third embodiment of the present invention. FIG. 3A is a plan view of the bottle cap of the present embodiment, and FIG. 3B is a cross-sectional view of the bottle cap when the coil spring of the present embodiment is mounted. As shown in FIGS. 4A and 4B, four coil springs 31 are provided inside the concave portion of the concave cap 12. Each of the coil springs 31 is provided between a projection 32 provided at the center of the cap 12 and an inner wall of the cap 12. Then, FIG.
As shown in (b), the elastic force of the coil spring 31 is applied to the inner wall of the cap 12 as a pressure to push and spread in the direction of the arrow, that is, in the outer peripheral direction, so that the plastic deformation due to a temperature change causes the outer part of the cap 12 itself. Even when the diameter φC becomes small, the diameter is expanded in the outer peripheral direction by the elastic force of the coil spring 31, so that the press-in allowance can be maintained and the plugged state can be maintained.

【００１３】図４は本発明の第４の実施例に係るボトル
キャップの構造を示す図である。図４の（ａ）は本実施
例のさらバネの断面図であり、図４の（ｂ）は本実施例
のさらバネの平面図であり、図４の（ｃ）は本実施例の
さらバネ装着時のボトルキャップの断面図である。同図
の（ａ），（ｂ）に示すように、さらバネ４１は中心方
向へ傘状に広がった複数の内側さらバネ部材４１ａと外
周方向へ傘状に広がった複数の外側さらバネ部材４１ｂ
を含んで構成され、それぞれのさらバネ部材は矢印方向
へ弾性力を持つ。このような構成を有するさらバネ４１
は、図４の（ｃ）に示すように、凹形状のキャップ１２
の凹内部に装填される。そして、図４の（ｃ）に示すよ
うに、さらバネ４１の弾性力が、矢印方向、つまり外周
方向へ押し広げようとする圧力としてキャップ１２の内
側壁に加わることにより、温度変化による塑性変形でキ
ャップ１２自体の外径φＣが小さくなってもさらバネ４
１の弾性力で外周方向に広げられて圧入代を維持し閉栓
状態を保持できる。FIG. 4 is a view showing the structure of a bottle cap according to a fourth embodiment of the present invention. 4A is a cross-sectional view of the flat spring of the present embodiment, FIG. 4B is a plan view of the flat spring of the present embodiment, and FIG. It is sectional drawing of the bottle cap at the time of spring installation. As shown in FIGS. 3A and 3B, the flat spring 41 is composed of a plurality of inner flat spring members 41a extending in an umbrella shape toward the center and a plurality of outer flat spring members 41b expanding in an umbrella shape in the outer peripheral direction.
, And each flat spring member has an elastic force in the direction of the arrow. Flat spring 41 having such a configuration
Is a concave cap 12 as shown in FIG.
Is loaded inside the recess. Then, as shown in FIG. 4 (c), the elastic force of the flat spring 41 is applied to the inner wall of the cap 12 as a pressure to push and spread in the direction of the arrow, that is, in the outer circumferential direction. Even if the outer diameter φC of the cap 12 itself becomes smaller,
With the elastic force of 1, it is expanded in the outer peripheral direction, so that the press-in allowance is maintained and the plugged state can be maintained.

【００１４】図５は本発明の第５の実施例に係るボトル
キャップの構造を示す図である。図５の（ａ）は本実施
例のリング状バネ部材装着時のボトルキャップの平面図
である。また、図５の（ｂ）は線状のリング状バネ部材
の斜視図であり、図５の（ｃ）は板状のリング状バネ部
材の斜視図である。更に、図５の（ｄ）は本実施例の線
状のリング状バネ部材装着時のボトルキャップの断面図
である。同図の（ａ），（ｄ）に示すように、凹形状の
キャップ１２の凹内部にはリング状バネ部材５１が装填
される。このリング状バネ部材５１の形状としては、図
５の（ｂ）に示すような線状のものや、図５の（ｃ）に
示すような板状のものがある。いずれのリング状バネ部
材５１の開放状態の外径φＡは、キャップ１２の内径φ
Ｂよりも大きい。そして、リング状バネ部材５１の外径
φＡがキャップ１２の内径φＢ以下になるように、リン
グ状バネ部材５１の各辺を成す部材を外周方向から中心
方向へ（図中矢印ｃの方向）変位させて、キャップ１２
の凹内部に装填する。よって、図５の（ｄ）に示すよう
に、リング状バネ部材５１は矢印方向であって、装填時
に変位させた逆の方向へ元の形状に戻ろうとする弾性
力、つまり外周方向へ押し広げようとする圧力をキャッ
プ１２の内側壁に加えることにより、温度変化による塑
性変形でキャップ１２自体の外径φＣが小さくなっても
リング状バネ部材５１の弾性力で外周方向に広げられて
圧入代を維持し閉栓状態を保持できる。なお、本実施例
におけるリング状バネ部材５１の平面形状は、キャップ
１２の内側に加える圧力を内周全体に均一にするために
リング状バネ部材５１の平面形状を正多角形が好ましい
がこれに限定する必要はなく、多角形でも構わないし、
上記第２の実施例でも述べたように輪でもよい。FIG. 5 is a view showing a structure of a bottle cap according to a fifth embodiment of the present invention. FIG. 5A is a plan view of the bottle cap when the ring-shaped spring member according to the present embodiment is mounted. FIG. 5B is a perspective view of a linear ring-shaped spring member, and FIG. 5C is a perspective view of a plate-shaped ring-shaped spring member. FIG. 5D is a cross-sectional view of the bottle cap when the linear ring-shaped spring member according to the present embodiment is mounted. As shown in FIGS. 6A and 6D, a ring-shaped spring member 51 is loaded inside the concave portion of the concave cap 12. The shape of the ring-shaped spring member 51 includes a linear shape as shown in FIG. 5B and a plate-like shape as shown in FIG. 5C. The outer diameter φA of any ring-shaped spring member 51 in the open state is the inner diameter φ of the cap 12.
It is larger than B. Then, the members forming each side of the ring-shaped spring member 51 are displaced from the outer peripheral direction to the center direction (the direction of arrow c in the drawing) so that the outer diameter φA of the ring-shaped spring member 51 is equal to or smaller than the inner diameter φB of the cap 12. Let's make cap 12
The inside of the recess is loaded. Therefore, as shown in FIG. 5 (d), the ring-shaped spring member 51 is in the direction of the arrow, and is resilient to return to the original shape in the opposite direction displaced at the time of loading, that is, pushes outward in the outer peripheral direction. By applying the desired pressure to the inner wall of the cap 12, even if the outer diameter φC of the cap 12 itself becomes small due to plastic deformation due to a temperature change, it is expanded in the outer peripheral direction by the elastic force of the ring-shaped spring member 51 and the press-fitting allowance is obtained. Can be maintained and the plugged state can be maintained. The planar shape of the ring-shaped spring member 51 in the present embodiment is preferably a regular polygon in order to make the pressure applied to the inside of the cap 12 uniform over the entire inner periphery. It is not necessary to limit, it may be polygonal,
A ring may be used as described in the second embodiment.

【００１５】なお、本発明は上記実施例に限定されるも
のではなく、特許請求の範囲内の記載であれば多種の変
形や置換可能であることは言うまでもない。The present invention is not limited to the above embodiment, and needless to say, various modifications and substitutions can be made within the scope of the claims.

【００１６】[0016]

【発明の効果】以上説明したように、本発明のボトルキ
ャップは、ボトルの開口部を閉栓する凹形状のキャップ
の凹内部に、キャップの内側から外周方向へ圧力を加え
る弾性部材を設けたことに特徴がある。よって、温度変
化によってキャップの外径が変形しても圧入代を維持し
閉栓状態を保持できる。As described above, in the bottle cap of the present invention, the elastic member for applying pressure from the inside of the cap to the outer peripheral direction is provided inside the recess of the concave cap for closing the opening of the bottle. There is a feature. Therefore, even if the outer diameter of the cap is deformed due to a temperature change, the press-fit margin can be maintained and the plugged state can be maintained.

【００１７】また、弾性部材はコイルバネであり、この
コイルバネの螺旋中心からの放射方向への弾性力でキャ
ップの内側から外周方向へ圧力を加えることにより、あ
るいはこのコイルバネが伸張する方向への弾性力でキャ
ップの内側から外周方向へ圧力を加えることにより、温
度変化によってキャップの外径が変形しても圧入代を維
持し閉栓状態を保持できる。The elastic member is a coil spring. The elastic force in the radial direction from the center of the spiral of the coil spring applies pressure from the inside of the cap to the outer periphery, or the elastic force in the direction in which the coil spring extends. By applying pressure from the inside of the cap to the outer periphery in the above manner, even if the outer diameter of the cap is deformed due to a temperature change, the press-fit margin can be maintained and the closed state can be maintained.

【００１８】更に、弾性部材は長手方向の面の少なくと
も一部が前記キャップの内側壁に接する板状又は線状の
バネであり、このバネの外周方向への弾性力で前記キャ
ップの内側から外周方向へ圧力を加えることにより、あ
るいは弾性部材は外周方向へ広がった複数の弾性板部材
を含んで構成するさらバネであり、各弾性板部材の外周
方向への弾性力でキャップの内側から外周方向へ圧力を
加えることにより、温度変化によってキャップの外径が
変形しても圧入代を維持し閉栓状態を保持できる。Further, the elastic member is a plate-like or linear spring whose at least a part of its longitudinal surface is in contact with the inner wall of the cap. The elastic member is a flat spring that includes a plurality of elastic plate members that expand in the outer peripheral direction by applying pressure in the direction, and the elastic force in the outer peripheral direction of each elastic plate member causes the elastic member to move from the inside of the cap to the outer peripheral direction. By applying pressure to the cap, even if the outer diameter of the cap is deformed due to a temperature change, the press-fitting margin can be maintained and the closed state can be maintained.

【００１９】また、弾性部材はリング状バネ部材であ
り、このリングバネ部材を変位させたリング中心方向の
逆方向への弾性力で、あるいはこのリングバネ部材の平
面形状が多角形であれば各角がキャップの内側壁に接し
て各辺を成す部材を変位させた方向の逆方向への弾性力
で、キャップの内側から外周方向へ圧力を加えることに
より、温度変化によってキャップの外径が変形しても圧
入代を維持し閉栓状態を保持できる。Further, the elastic member is a ring-shaped spring member, and each angle is determined by an elastic force in a direction opposite to the center direction of the ring by displacing the ring spring member, or when the plane shape of the ring spring member is a polygon, each angle is set. By applying pressure from the inside of the cap to the outer periphery with the elastic force in the direction opposite to the direction in which the members forming each side are displaced in contact with the inner wall of the cap, the outer diameter of the cap is deformed due to temperature change Also, the press-fit amount can be maintained and the plugged state can be maintained.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の第１の実施例に係るボトルキャップの
構造を示す図である。FIG. 1 is a view showing a structure of a bottle cap according to a first embodiment of the present invention.

【図２】本発明の第２の実施例に係るボトルキャップの
構造を示す図である。FIG. 2 is a view showing a structure of a bottle cap according to a second embodiment of the present invention.

【図３】本発明の第３の実施例に係るボトルキャップの
構造を示す図である。FIG. 3 is a view showing a structure of a bottle cap according to a third embodiment of the present invention.

【図４】本発明の第４の実施例に係るボトルキャップの
構造を示す図である。FIG. 4 is a view showing a structure of a bottle cap according to a fourth embodiment of the present invention.

【図５】本発明の第５の実施例に係るボトルキャップの
構造を示す図である。FIG. 5 is a view showing a structure of a bottle cap according to a fifth embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１１，３１；コイルバネ、１２；キャップ、２１；板バ
ネ、３２；突起、４１；さらバネ、４１ａ；内側さらバ
ネ部材、４１ｂ；外側さらバネ部材、５１；リング状バ
ネ部材。11, 31; coil spring, 12; cap, 21; leaf spring, 32; projection, 41; flat spring, 41a; inner flat spring member, 41b; outer flat spring member, 51;

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 ボトルの開口部を閉栓する凹形状のキャ
ップの凹内部に、該キャップの内側から外周方向へ圧力
を加える弾性部材を設けたことを特徴とするボトルキャ
ップ。1. A bottle cap, wherein an elastic member for applying pressure from the inside of the cap to the outer peripheral direction is provided inside the recess of the concave cap for closing the opening of the bottle. 【請求項２】 前記弾性部材はコイルバネであり、該コ
イルバネの螺旋中心からの放射方向への弾性力で前記キ
ャップの内側から外周方向へ圧力を加える請求項１記載
のボトルキャップ。2. The bottle cap according to claim 1, wherein the elastic member is a coil spring, and applies a pressure from the inside of the cap to the outer peripheral direction by an elastic force in a radial direction from a spiral center of the coil spring. 【請求項３】 前記弾性部材は長手方向の面の少なくと
も一部が前記キャップの内側壁に接する板状又は線状の
バネであり、該バネの外周方向への弾性力で前記キャッ
プの内側から外周方向へ圧力を加える請求項１記載のボ
トルキャップ。3. The elastic member is a plate-like or linear spring having at least a part of a surface in a longitudinal direction contacting an inner wall of the cap, and the elastic member has an elastic force in an outer peripheral direction from the inside of the cap. The bottle cap according to claim 1, wherein pressure is applied in an outer circumferential direction. 【請求項４】 前記弾性部材はコイルバネであり、該コ
イルバネが伸張する方向への弾性力で前記キャップの内
側から外周方向へ圧力を加える請求項１記載のボトルキ
ャップ。4. The bottle cap according to claim 1, wherein the elastic member is a coil spring, and applies pressure from the inside of the cap to the outer peripheral direction by an elastic force in a direction in which the coil spring extends. 【請求項５】 前記弾性部材は外周方向へ広がった複数
の弾性板部材を含んで構成するさらバネであり、前記各
弾性板部材の外周方向への弾性力で前記キャップの内側
から外周方向へ圧力を加える請求項１記載のボトルキャ
ップ。5. The elastic member is a flat spring including a plurality of elastic plate members extending in an outer peripheral direction, and the elastic member moves from an inner side of the cap to an outer peripheral direction by an elastic force in an outer peripheral direction of each of the elastic plate members. 2. The bottle cap according to claim 1, wherein pressure is applied. 【請求項６】 前記弾性部材はリング状バネ部材であ
り、該リングバネ部材を変位させたリング中心方向の逆
方向への弾性力で前記キャップの内側から外周方向へ圧
力を加える請求項１記載のボトルキャップ。6. The cap according to claim 1, wherein the elastic member is a ring-shaped spring member, and applies a pressure from the inside of the cap to the outer peripheral direction by an elastic force in a direction opposite to a center direction of the ring that displaces the ring spring member. Bottle cap. 【請求項７】 前記リング状バネ部材の平面形状は多角
形であり、前記リングバネ部材の各辺を成す部材を変位
させた方向の逆方向への弾性力で前記キャップの内側か
ら外周方向へ圧力を加える請求項６記載のボトルキャッ
プ。7. A planar shape of the ring-shaped spring member is a polygon, and a pressure is applied from the inside of the cap to the outer peripheral direction by an elastic force in a direction opposite to a direction in which a member forming each side of the ring spring member is displaced. 7. The bottle cap according to claim 6, wherein
JP2000116255A 2000-04-18 2000-04-18 Bottle cap Expired - Fee Related JP4080134B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000116255A JP4080134B2 (en) 2000-04-18 2000-04-18 Bottle cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000116255A JP4080134B2 (en) 2000-04-18 2000-04-18 Bottle cap

Publications (2)

Publication Number Publication Date
JP2001301782A true JP2001301782A (en) 2001-10-31
JP4080134B2 JP4080134B2 (en) 2008-04-23

Family

ID=18627738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000116255A Expired - Fee Related JP4080134B2 (en) 2000-04-18 2000-04-18 Bottle cap

Country Status (1)

Country Link
JP (1) JP4080134B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006154191A (en) * 2004-11-29 2006-06-15 Fuji Xerox Co Ltd Toner cap, toner storing apparatus, attaching method for toner cap to toner storing apparatus and detaching method for toner cap from toner storing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006154191A (en) * 2004-11-29 2006-06-15 Fuji Xerox Co Ltd Toner cap, toner storing apparatus, attaching method for toner cap to toner storing apparatus and detaching method for toner cap from toner storing apparatus

Also Published As

Publication number Publication date
JP4080134B2 (en) 2008-04-23

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