JP3105832U - Powder seal piece for rotating shaft - Google Patents
Powder seal piece for rotating shaft Download PDFInfo
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- JP3105832U JP3105832U JP2004002471U JP2004002471U JP3105832U JP 3105832 U JP3105832 U JP 3105832U JP 2004002471 U JP2004002471 U JP 2004002471U JP 2004002471 U JP2004002471 U JP 2004002471U JP 3105832 U JP3105832 U JP 3105832U
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Abstract
【課題】従来のテフロン(登録商標)フェルト若しくはテフロン織布を用いた粉体シール片はシール部の凹部内周面に固着して取付けたときに皺(しわ)が生じるため回転軸周面との密着性が不十分で粉体の侵入，洩れを生じる。フェルト若しくは織布の繊維間、皺(しわ)部分に粉体を抱持したままの状態になるため、長時間使用の間に該粉体が回転軸の周面を研削して傷付け細らせ回転軸の耐久性を損じ、狂いを生じる。
【解決手段】短冊状で弾力性のある発泡プラスチック製のホルダー９を中心として、該ホルダー９の裏面に両面接着テープ７の片面を固着すると共に該両面接着テープ７の他方面に剥離紙７ａを接着し、また同ホルダー９の表面にテフロンフィルム片８を固着して、前記４者８、９、７、７ａを積層構成して設けたものである、回転軸の粉体シール片Ｓによって課題を解決した。
【選択図】図１A powder seal piece using a conventional Teflon (registered trademark) felt or a Teflon woven fabric is wrinkled when attached and attached to an inner peripheral surface of a concave portion of a seal portion. Inadequate adhesion of powder causes intrusion and leakage of powder. Since the powder is held between the fibers of the felt or the woven fabric and the wrinkles (wrinkles), the powder grinds the peripheral surface of the rotating shaft during use for a long time, causing the powder to be damaged and thinned. The durability of the rotating shaft is impaired, leading to instability.
One side of a double-sided adhesive tape is fixed to the back surface of a holder made of a foamed plastic having elasticity in the form of a strip, and a release paper is affixed to the other surface of the double-sided adhesive tape. The four-members 8, 9, 7, and 7a are laminated and provided with the Teflon film pieces 8 adhered and fixed on the surface of the holder 9, and the problem is caused by the powder seal pieces S of the rotating shaft. Was solved.
[Selection diagram] Fig. 1
Description
本考案は、例えば、複写機、ファックス、プリンター等におけるトナーカートリッジ等の回転軸の周面に付着した粉体(例、トナー)が軸受部に侵入して回転の妨げにならないように、シール部の軸受凹部の内側に取付けて粉体の侵入をシールする粉体シール片に係り、極めて薄く(例、厚さ５０ミクロン)、柔軟性、伸縮性を有するテフロン(登録商標)(テフロンは合成樹脂ポリテトラフルオロエチレンのこと。)フィルム片を使用して、粉体シール片と回転軸周面との密着性を格段に向上することによって、シール機能を格段に向上した。 For example, the present invention provides a seal unit so that powder (e.g., toner) adhering to the peripheral surface of a rotary shaft of a toner cartridge or the like in a copying machine, a facsimile, a printer, or the like does not enter the bearing unit and hinder rotation. Teflon ( registered trademark ) ( Teflon is a synthetic resin ) that is attached to the inside of the bearing recess of Polytetrafluoroethylene ) The sealing function was remarkably improved by using a film piece to significantly improve the adhesion between the powder seal piece and the rotating shaft peripheral surface.
例えば、複写機、ファックス、プリンター等において、粉体（例、トナー即ちカーボン微粉体）を充填した長方形箱状等のケースにマグネットローラー、転写ローラー等の回転軸をセットしたトナーカートリッジ等が広く用いられているが、長期間の使用により、これらの回転軸１の周面に付着した粉体２が軸受部３に侵入して回転の妨げにならないように、通常、軸受部３の内側（例、トナー槽の左右側板４）に粉体２をシールするシール部５を設けて、該シール部５から軸受部３側へ粉体２が洩れ出ないようにしている。 For example, in a copier, a facsimile, a printer, and the like, a toner cartridge in which a rotating shaft such as a magnet roller and a transfer roller is set in a rectangular box-like case filled with powder (eg, toner, ie, fine carbon powder) is widely used. However, in order to prevent the powder 2 adhering to the peripheral surface of the rotating shaft 1 from entering the bearing portion 3 and hindering the rotation over a long period of use, the inside of the bearing portion 3 (e.g., A seal 5 for sealing the powder 2 is provided on the left and right side plates 4) of the toner tank so that the powder 2 does not leak from the seal 5 to the bearing 3 side.
該シール部５は回転軸１をトナーケース等の正面側若しくは上面側から嵌合取付けするＪ形、Ｕ形、Ｃ形等の軸受凹部６を形成し、該軸受凹部６の内周面に、粉体２の洩れをシールする粉体シール片(本考案Ｓ若しくは従来Ｓ１)を一体的に接着してある。（図３、図４、図５参照） The seal portion 5 forms a J-shaped, U-shaped, C-shaped, or other bearing recess 6 for fitting the rotary shaft 1 from the front side or the top side of the toner case or the like. A powder seal piece (the present invention S or conventional S1) for sealing the leakage of the powder 2 is integrally bonded. (See FIGS. 3, 4, and 5)
従来の、粉体シール片Ｓ１は素材として、弾力性があって摩擦抵抗が極めて少なく、耐久性に秀れ、高密度に絡合した繊維が微粉体の侵入を有効に防御する作用を行う等の秀れた特性を兼備したテフロンフェルト片を使用している。
テフロンフェルトは１万円札大で１万円すると言われる位に極めて高価であり、厚さが増すほど高価であるため、他の素材、例えば発泡プラスチックと組み合わせて使用するのが通例である。
The conventional powder seal piece S1 is made of a material having elasticity, extremely low frictional resistance, excellent durability, and a high-density entangled fiber that effectively prevents fine powder from entering. Uses a piece of Teflon felt that has excellent characteristics.
Teflon felt is extremely expensive as it is said to be 10,000 yen in a 10,000-yen bill size, and is expensive as the thickness increases. Therefore, it is customary to use Teflon felt in combination with another material, for example, foamed plastic.
また、上記のテフロンフェルト片の他、テフロン繊維を表面側に起毛状態に織り出したビロード織布のようなテフロン織布を設け、該織布を形抜き加工して設けた粉体シール片を使用することが行われている。 Further, in addition to the above Teflon felt pieces, a Teflon woven cloth such as a velvet woven cloth in which Teflon fibers are woven in a raised state on the surface side is provided, and a powder seal piece provided by stamping the woven cloth is provided. Use has been made.
従来の粉体シール片は、メーカーによって多少相違するが、例えば、幅１０ｍｍ位、長さ４５ｍｍ位、厚さ１ｍｍ位のテフロンフェルト片若しくはテフロン織布片と厚さ３ｍｍ位の発泡プラスチック片、合成ゴム片、若しくはフェルト片等からなるホルダーを容易に剥離しない状態に積層形成したものの裏面に両面接着フィルムの片面を接着（他方面に剥離紙を接着）したものであり、
該粉体シール片を、上記シール部の軸受凹部の内周面に、両面接着フィルムの他方面（剥離紙を剥がして）を固着して取付けたものである。
而して、本考案の粉体シール片も寸法、形状は従来と略同様である。
The powder seal piece is attached to the inner peripheral surface of the bearing recess of the seal portion by fixing the other surface of the double-sided adhesive film (by peeling off the release paper).
Thus, the size and shape of the powder seal piece of the present invention are substantially the same as those of the related art.
上記従来の、テフロンフェルト片１１若しくは織布片をホルダーに積層形成した粉体シール片Ｓ１は、
１．シール部の凹部内周面に固着して取付けたときに、どうしても皺(しわ)１０が生じやすく、そのため回転軸周面との密着性が不十分となって粉体の侵入，洩れを生じる、(図５参照)
２．回転軸周面と粉体シール片の間に侵入してきた粉体を、フェルト片若しくは織布片を構成している繊維の間や上記の皺(しわ)部分に、抱持したままの状態になるため、長時間使用の間に、該粉体が研削剤の作用をして回転軸の周面を研削して傷付け細らせて、回転軸の耐久性を損じると共に回転に狂いを生じる、
等の課題があったが、本考案は、従来のテフロンフェルト片若しく織布片を用いることを取り止め、極めて薄く(例、厚さ５０ミクロン)、柔軟性、伸縮性を有するテフロンフィルム片を使用して、粉体シール片と回転軸周面との密着性を格段に向上することによって、従来の課題を解決したものである。
The conventional powder seal piece S1 formed by laminating the Teflon felt piece 11 or the woven cloth piece on the holder is:
1. When it is fixedly attached to the inner peripheral surface of the concave portion of the seal portion, wrinkles (wrinkles) 10 are apt to be generated, and therefore, the adhesion to the peripheral surface of the rotating shaft is insufficient, and powder intrusion and leakage occur. (See Fig. 5)
2. The powder that has entered between the peripheral surface of the rotating shaft and the powder seal piece is held between the fibers constituting the felt piece or the woven cloth piece and between the above wrinkles (wrinkles). Therefore, during long-time use, the powder acts as an abrasive to grind the peripheral surface of the rotating shaft to damage and thin, thereby impairing the durability of the rotating shaft and causing irregular rotation.
However, the present invention stopped using conventional Teflon felt pieces or woven cloth pieces, and made Teflon film pieces having an extremely thin (eg, 50 μm thickness), flexibility and elasticity. The present invention solves the conventional problem by remarkably improving the adhesion between the powder seal piece and the peripheral surface of the rotating shaft.
即ち、本考案は、シール部の軸受凹部内面に固着して粉体の洩れ出しをシールするのに用いる粉体シール片の幅及び長さに見合った寸法の短冊状で弾力性のある発泡プラスチック製のホルダーを中心として、該ホルダーの裏面に両面接着テープの片面を固着すると共に該両面接着テープの他方面に剥離紙を接着し、また同ホルダーの表面にテフロンフィルム片を固着して、前記４者を積層構成して設けたものである、回転軸の粉体シール片によって課題を解決したものである。 That is, the present invention is directed to a strip-shaped and elastic foam plastic having a size corresponding to the width and length of a powder seal piece used to seal leakage of powder by being fixed to the inner surface of a bearing recess of a seal portion. Centering on a holder made of a double-sided adhesive tape on the back side of the holder and a release paper on the other side of the double-sided adhesive tape, and a piece of Teflon film fixed on the surface of the holder, The problem has been solved by a powder seal piece of a rotating shaft, which is provided by laminating four members.
本考案は、テフロンフィルム片を使用したため、その極めて薄く、柔軟性、伸縮性を有する特性によって、シール部の軸受凹部内周面に固着して取付けたときに皺(しわ)を生じることがなく、粉体シール片と回転軸周面との密着性を格段に向上することでき、よって、粉体の侵入，洩れを有効に防止し得る優れた効果がある。 Since the present invention uses a Teflon film piece, its extremely thin, flexible, stretchable properties prevent wrinkles when it is fixedly attached to the inner peripheral surface of the bearing recess of the seal portion. In addition, the adhesion between the powder seal piece and the peripheral surface of the rotating shaft can be remarkably improved, so that there is an excellent effect that powder intrusion and leakage can be effectively prevented.
また、上記の粉体シール片と回転軸周面との良好な密着性によって、回転軸周面とシール片の間に粉体が侵入してくることを未然に防止できて、両者間に粉体を抱持することが無く、よって、従来のように、長時間使用の間に、該粉体が研削剤の作用をして回転軸の周面を研削して傷付け細らせて、回転軸の耐久性を損じると共に回転に狂いを生じるような恐れがない特徴がある。 In addition, due to the good adhesion between the powder seal piece and the rotary shaft peripheral surface, it is possible to prevent powder from entering between the rotary shaft peripheral surface and the seal piece beforehand, and the powder It does not hold the body, so that, during a long period of use, the powder acts as an abrasive and grinds the peripheral surface of the rotating shaft to damage and thin the body, as in the past. There is a feature that the durability of the shaft is impaired and there is no danger that rotation will be out of order.
テフロンフィルム片の極めて薄く、柔軟性、伸縮性を有する特性を利用し、該フィルム片を設定力で伸張した状態で発泡プラスチック製のホルダーに固着し、固着後の伸張解放及び復元収縮力でホルダーを自然に若しくは自動的に反曲変形することによって、粉体シール片をシール部の軸受凹部内周面に取付けるのに適合したＪ形、Ｕ形、Ｃ形等の形状に形成できる優れた利点がある。 Utilizing the extremely thin, flexible, stretchable properties of the Teflon film piece, the film piece is fixed to a foamed plastic holder in a state of being stretched by a set force, and the holder is stretched and released after the fixation and the holder is restored by a restoring shrinkage force. The advantage of being able to form the J-shaped, U-shaped, C-shaped, etc. suitable for attaching the powder seal piece to the inner peripheral surface of the bearing recess of the seal part by automatically or automatically recurving deformation of There is.
極めて薄く(例、厚さ５０ミクロン)、柔軟性、伸縮性を有するテフロンフィルム片を使用して、粉体シール片と回転軸周面との密着性を格段に向上することによって目的を実現した。 The purpose was realized by using a very thin (eg, 50 micron thick), flexible, stretchable Teflon film piece to significantly improve the adhesion between the powder seal piece and the rotating shaft peripheral surface. .
図１は本考案実施例１の粉体シール片の正面図、平面図、及び右側面図、図２は図１のＡ−Ａ線拡大断面図、図３は粉体シール片をシール部の軸受凹部に取付けた一部切断正面図、図４は図３のＢ−Ｂ線断面図、図５は従来の粉体シール片をシール部に取付けて、皺を生じた状態を示す図である。 1 is a front view, a plan view, and a right side view of a powder seal piece according to a first embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along the line BB of FIG. 3, and FIG. 5 is a view showing a state in which a conventional powder seal piece is attached to a seal portion to form wrinkles. .
トナーケース等の回転軸１のシール部５の軸受凹部６の内面に固着して粉体２の洩れ出しをシールするのに用いる粉体シール片の幅及び長さに見合った寸法の短冊状で弾力性のある発泡プラスチック製のホルダー９を中心として、該のホルダー９の裏面に両面接着テープ７の片面を固着すると共に該両面接着テープ７の他方面に剥離紙７ａを接着し、また同ホルダー９の表面にテフロンフィルム片８を固着し、前記４者８、９、７、７ａを積層構成して、回転軸１の粉体シール片Ｓを設けたものである。 A strip having a size commensurate with the width and length of the powder seal piece used to seal the leakage of the powder 2 by being fixed to the inner surface of the bearing recess 6 of the seal portion 5 of the rotary shaft 1 such as a toner case. One side of a double-sided adhesive tape 7 is fixed to the back surface of the holder 9 around a resilient foamed plastic holder 9, and a release paper 7 a is bonded to the other side of the double-sided adhesive tape 7. 9, a Teflon film piece 8 is fixed on the surface of the rotating shaft 9, and the powder seal pieces S of the rotating shaft 1 are provided by laminating the four members 8, 9, 7, and 7a.
上記の本考案粉体シール片Ｓは、例えば、短冊状で弾力性のある発泡プラスチック製のホルダー９を中心として、該ホルダー９の裏面に両面接着テープ７の片面を固着すると共に該両面接着テープ７の他方面に剥離紙７ａを接着し、また同ホルダー９の表面にテフロンフィルム片８を、設定力で伸張した状態で固着した後、該フィルム片８を伸張から解放することにより、該フィルム片８の固着後の復元収縮力で、自然に若しくは自動的に、前記４者８、９、７、７ａを積層構成した粉体シール片Ｓを、軸受凹部６の内面に略適合した形状である、Ｊ形、Ｕ形、Ｃ形等に反曲変形して設けたものである。 The above-mentioned powder seal piece S of the present invention is formed, for example, by attaching a single-sided double-sided adhesive tape 7 to the back surface of the holder 9 around a strip-shaped and elastic foamed plastic holder 9 and the double-sided adhesive tape. A release paper 7a is adhered to the other surface of the holder 7, and a Teflon film piece 8 is fixed to the surface of the holder 9 while being stretched with a set force. The powder seal piece S, which is formed by laminating the four members 8, 9, 7, and 7a, naturally or automatically by the restoring contraction force after the piece 8 is fixed, is formed into a shape substantially adapted to the inner surface of the bearing recess 6. It is provided in a certain shape such as a J shape, a U shape, a C shape, etc., by recurving.
本考案は、シール部の軸受部の内側に取付けて粉体の侵入をシールする粉体シール片に係り、極めて薄く、柔軟性、伸縮性を有するテフロンフィルム片を使用して、粉体シール片と回転軸周面との密着性を格段に向上することによって、シール性能を格段に向上したものであるので、上記の複写機、ファックス、プリンター等のトナーカートリッジ等の回転軸に限らず、広く種々の回転軸の軸受部の内側に取り付けて、粉体の侵入をシールする粉体シール片として、汎用し得る。 The present invention relates to a powder seal piece which is attached to the inside of a bearing part of a seal part and seals ingress of powder, using a Teflon film piece which is extremely thin, flexible and stretchable. By greatly improving the adhesion between the rotating shaft and the peripheral surface of the rotating shaft, the sealing performance has been significantly improved. It can be widely used as a powder seal piece attached to the inside of bearings of various types of rotating shafts to seal the intrusion of powder.
Ｓ 実施例の粉体シール片
１ 回転軸
２ 粉体
３ 軸受部
４ 側板
５ シール部
６ 軸受凹部
７ 両面粘着テープ
７ａ 剥離紙
８ テフロンフィルム片
９ ホルダー
Ｓ１ 従来のテフロンフェルト片を固着した粉体シール片
１０ 皺(しわ)
１１ テフロンフェルト片
S Powder seal piece of Example 1 Rotary shaft 2 Powder 3 Bearing part 4 Side plate 5 Seal part 6 Bearing recess 7 Double-sided adhesive tape 7a Release paper 8 Teflon film piece 9 Holder S1 Powder seal with conventional Teflon felt piece fixed Piece 10 wrinkles
11 Teflon felt pieces
Claims (2)
回転軸の粉体シール片。 Focusing on a strip-shaped, resilient foamed plastic holder that is fixed to the inner surface of the bearing recess of the seal and used to seal the leakage of powder used to seal the powder leakage Affixing one side of the double-sided adhesive tape to the back surface of the holder, bonding a release paper to the other side of the double-sided adhesive tape, and fixing a Teflon (registered trademark) film piece to the surface of the holder; Are provided in a laminated configuration.
Powder seal piece for rotating shaft.
請求項１記載の回転軸の粉体シール片。 Focusing on a strip-shaped, resilient foamed plastic holder that is fixed to the inner surface of the bearing recess of the seal and used to seal the leakage of powder used to seal the powder leakage In the state where one side of the double-sided adhesive tape is fixed to the back surface of the holder, a release paper is bonded to the other surface of the double-sided adhesive tape, and a Teflon (registered trademark) film piece is stretched on the surface of the holder with a set force. The powder seal pieces were fixed to form a J-shape, a U-shape, a C-shape, etc., by stretching and releasing and restoring shrinkage force after fixing the film pieces. Is a thing,
A powder seal piece for a rotary shaft according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004002471U JP3105832U (en) | 2004-05-06 | 2004-05-06 | Powder seal piece for rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004002471U JP3105832U (en) | 2004-05-06 | 2004-05-06 | Powder seal piece for rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3105832U true JP3105832U (en) | 2004-12-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004002471U Expired - Lifetime JP3105832U (en) | 2004-05-06 | 2004-05-06 | Powder seal piece for rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3105832U (en) |
-
2004
- 2004-05-06 JP JP2004002471U patent/JP3105832U/en not_active Expired - Lifetime
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