JPS60241431A - Connection mechanism in dental treatment instrument - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本願は、歯科治療器具における本体と可撓性ホースを導
出した継手部材とを回転自在に接続するための接続機構
に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present application relates to a connection mechanism for rotatably connecting a main body of a dental treatment instrument and a joint member from which a flexible hose is led out.

従来の技術と問題点 従来歯科治療に用いられる歯科用ノＡンドピース或いは
歯科用シリン２などは、治療器具の本体と、これに流体
や電気を供給するため歯科用ユニット或いは治療椅子に
接続され九司撓性ホースを有する継手部材とから成り、
これらは、治療作業時に可撓性ホースがねじれたり或い
はそのねじれ作用によって治療作業が拘束されたりしな
いように、接続機４１Ｉを介して着脱釜びに回転自在に
接続されるが、その接続機構として、例えば実開昭５１
−９９９９４号公報に示されるように、接続される治療
器具の本体に、端部外局面に環状溝を形成した嵌合筒体
を設け１だ継手部拐には、前記嵌合筒体の外周に嵌合す
る保持リングと、該保持リングの円周方向に設けた複数
の貫通孔に嵌合保持されかつ前記保持リングの厚味より
大きい径をもつ鋼球と、スプリングにより弾圧されかつ
内周に前記鋼球を内方に押圧する小径部を有した摺動自
在に操作リングとを備え、接続状態で前記鋼球を前記環
状溝に併合して成る接続機構は公知である。Conventional Technology and Problems Conventional dental endpieces or dental cylinders 2, etc., used in dental treatment consist of a main body of a treatment instrument and a device connected to a dental unit or treatment chair to supply fluid and electricity to the main body of the treatment instrument. and a coupling member having a flexible hose,
These are rotatably connected to the attachment/detachment hook via the connector 41I so that the flexible hose does not twist during treatment or the treatment is restricted by the twisting action, but the connection mechanism includes: For example, Utsukai 51
As shown in Japanese Patent No. 99994, the body of the therapeutic instrument to be connected is provided with a fitting cylinder having an annular groove formed on the outer surface of the end, and the outer circumference of the fitting cylinder is provided at the joint part. a retaining ring that fits into the retaining ring; a steel ball that is fitted and held in a plurality of through holes provided in the circumferential direction of the retaining ring and has a diameter larger than the thickness of the retaining ring; A connection mechanism is known in which the steel ball is provided with a slidably operating ring having a small diameter portion for pressing the steel ball inwardly, and the steel ball is merged into the annular groove in the connected state.

ところが上記し、た構成によれば、非接続状態において
は、操作リングは、スズリングにより弾圧されて鋼球を
内方に押圧した状態にあるため、この状態で嵌合筒体を
保持リング内に嵌挿して本体と継手部材とを接続しよう
とするときは、スプリングに抗して操作リングを摺動さ
せ、この状態で嵌合筒体を保持リング内に嵌挿しなけれ
ばならず、この操作は本体を継手部材から離脱させる場
合も同様であって、器具本体と継手部材との着脱操作が
面欄で使用に極めて不便であった。However, according to the configuration described above, in the unconnected state, the operating ring is pressed by the tin ring and presses the steel ball inward, so in this state, the fitting cylinder cannot be inserted into the retaining ring. When attempting to connect the main body and the coupling member by fitting, the operating ring must be slid against the spring, and in this state the fitting cylinder must be inserted into the retaining ring. The same applies to the case where the main body is removed from the joint member, and the operation of attaching and detaching the instrument main body and the joint member is extremely inconvenient for use.

発明の目的、実施例及び作用 そこで本願は上記した従来のものの欠陥を改善したもの
で、以下図面に基づいてその実施例を説明する。実施例
に示した歯科治療器具は、例えば先端に加圧空気により
駆動される駆動部を有する本体Ａと、後端に可撓性ホー
スを増刊けた継手部材Ｂとから構成されている。前記本
体Ａは第２図で示すように軸筒（５）によって形成され
、その後方内部に、先端が本体Ａの先端部まで延びてい
る通電コード（１）の後端部が中心位量で保持部材（３
）により保持されており、かつ給水及び給気用の配管系
ｆ２＋、　１２＋を助力に導出すると共に、後方内部に
前記配管系（２１，＋２１と連通する嵌合凹部（４−を
有した嵌合筒体（４１が設けられている。前記嵌合凹部
（４−はその先端に軸心に沿って貫通する小径の通孔（
４Ｔｏを有しており、この通孔（４）ｂ内に前記通電コ
ード（１）に接続された導電端子（１）′が設けられ、
また前記嵌合筒体（４１の後端には、肉薄に形成された
突リング（４１ｃが延長されており、その外周に嵌合筒
体（４１と同心円状に接続筒（６）が設けられ、これら
が外筒（５）の後端内周に螺合された締伺リングＩｎＫ
よって軸筒（５）に固着され、かつ前記接続筒（６）の
外周囲には環状溝（６）＆が形成されている。OBJECTS, EMBODIMENTS, AND OPERATIONS OF THE INVENTION The present invention improves the deficiencies of the above-mentioned conventional devices, and examples thereof will be described below based on the drawings. The dental treatment instrument shown in the embodiment includes, for example, a main body A having a drive unit driven by pressurized air at its tip, and a joint member B having an additional flexible hose attached to its rear end. As shown in FIG. 2, the main body A is formed by a shaft cylinder (5), and inside the rear end of the energizing cord (1), the rear end of which extends to the distal end of the main body A is located at a central position. Holding member (3
), and the piping systems f2+ and 12+ for water supply and air supply are led out for assistance, and a fitting recess (4-) communicating with the piping systems (21, +21 A cylindrical body (41 is provided. The fitting recess (4-) has a small diameter through hole (4-) extending along the axis at the tip thereof.
4To, a conductive terminal (1)' connected to the energizing cord (1) is provided in the through hole (4)b,
Further, at the rear end of the fitting cylinder (41), a thinly formed protrusion ring (41c) is extended, and a connecting cylinder (6) is provided concentrically with the fitting cylinder (41) on the outer periphery of the protrusion ring (41c). , these are the tightening ring InK screwed onto the inner periphery of the rear end of the outer cylinder (5).
Therefore, it is fixed to the shaft cylinder (5), and an annular groove (6) & is formed around the outer periphery of the connecting cylinder (6).

一方継手部材Ｂは、第３図に示すように、外周適所に周
溝（８）を形成し、該周溝（８）内に気液密用の０リン
グ（９）全嵌合して前記本体Ａの嵌合凹部（３）内に前
半部が回転自在に嵌合接続される挿入筒体（１αと、こ
の挿入筒体０αの外側後半部に同心円状に設けられ、前
方にそれよりも肉薄で前記本体Ａの接続筒（６）の外径
寸法よりやや大きい内径を有した保持リング住１１を、
後方に肉薄に形成された増刊リング（ｌｉｔ’を夫々突
設し九九挿管（１２１と、この外挿管（１２１と前記挿
入筒体０〔との間の空隙内に位置して軸方向に摺動可能
で前記接続筒（６）と略同−の太さを有するスライドリ
ング０３′と、前記外ｎｖａ’ｚに前記保持リング１１
１１の周囲を包囲するように軸線方向に摺動可能に保持
された操作リングα４と、前記外挿管（１２１の後部に
ねじ解合したカバーリングいとから構成されている。On the other hand, as shown in FIG. 3, the joint member B has a circumferential groove (8) formed at a suitable location on the outer periphery, and an air-liquid tight O-ring (9) is fully fitted into the circumferential groove (8). An insertion cylinder (1α) whose front half is rotatably fitted and connected in the fitting recess (3) of the main body A, and an insertion cylinder (1α) provided concentrically on the outer rear half of the insertion cylinder 0α, The retaining ring 11 is thin and has an inner diameter slightly larger than the outer diameter of the connecting tube (6) of the main body A,
A thin extension ring (lit') is formed at the rear and protrudes from the multiplication intubation tube (121), and the outer intubation tube (121) is located in the gap between the insertion tube 0 and slides in the axial direction. A slide ring 03' that is movable and has approximately the same thickness as the connecting tube (6), and a retaining ring 11 on the outer nva'z.
The operating ring α4 is slidably held in the axial direction so as to surround the outer tube 11, and the cover ring is screwed to the rear of the outer tube (121).

前記操作リングＣ１４１及びスライドリングｑ３はそれ
ぞれコイルはね（”ｉＥ８．　（１７１によって常時前
方へ伺勢されており、１だ前記外挿管（１２１の先端保
持リング（１１１には円周方向に複数の貫通孔開が開設
され、この貫通孔Ｑ８に外挿管ａｚの肉厚よりも大きい
径をもつ鋼球任９がそれぞれ嵌合保持されていて、通常
はこの鋼球（１９が外挿管Ｑ２１の内側に位置するスラ
イドリングＵの外周面に当接して外方へ押上げられてい
る。The operation ring C141 and the slide ring q3 are always urged forward by the coil spring (171), and one tip retaining ring (111 has a plurality of rings in the circumferential direction). A through hole is opened, and steel balls 9 having a diameter larger than the wall thickness of the external tube az are fitted and held in the through hole Q8. It comes into contact with the outer peripheral surface of the slide ring U located at and is pushed outward.

前記外挿管Ｉ：ｉ？の前半部外側に位置する操作リング
（１４Ｉは、その前端部内周面に内径を拡大して大径部
■が形成され、この太優部■は傾斜段部１２１）を介し
て小径部のと連設している。そして通常は前記傾斜段部
Ｃ！υが前記スライドリング０３により押上げられて大
径部■内に受容されている鋼球Ｉの犀出部にコイルばね
ａＯの弾力によりφ接し、これによって操作リング（１
４１が外挿管（１２１から前方に離脱するのを防止して
いる。また前記スライドリングａ３の後端には内側に向
けて突出する内鍔θを有し、との内鍔のが通常は挿入筒
体Ｏｅの外周に設はたストッパリングα）に当接して前
方への離脱が防止されている。Said external intubation I: i? The operation ring (14I) located on the outside of the front half of the operation ring (14I) has a large diameter part (■) formed by enlarging the inner diameter on the inner peripheral surface of its front end, and this large diameter part (■) is connected to the small diameter part through the inclined step part 121. They are installed consecutively. And usually the inclined stepped portion C! υ is pushed up by the slide ring 03 and comes into contact with the protruding part of the steel ball I received in the large diameter part φ due to the elasticity of the coil spring aO, and as a result, the operating ring (1
41 is prevented from separating forward from the external intubation tube (121).The rear end of the slide ring a3 has an inner flange θ that protrudes inward, and the inner flange θ is normally inserted. It comes into contact with a stopper ring α) provided on the outer periphery of the cylindrical body Oe to prevent it from coming off forward.

前記挿入筒体（１０１の内部には、その先端部で開口し
、本体Ａの配管系（２）と適宜）１１通ずる給気路ｊお
よび給水路四が設けられると共に、中心部には電源コー
ド罰挿入用の孔のが設けらｎ、そしてその先端には電源
コード罰と接続され、前記導電端子（１１′と雌雄関係
にあり、これに接合される導電端予備が突設されている
。なお（至）は前記給水路（ハ）と接続された給水接続
子で、これに給水ホースω′が接続される。（３］１は
前記給気路■と接続された給気液貯子で、これに給気ホ
ース０１）′が接続される。０３は前記外挿管（１？の
取付リングａ１１′に接続された可撓性ホースで、内部
に各ホース■′とＧ１）′及び電源コードが内装されて
いる。東は操作リング（１４＋の小径部シ１の後位に設
けたストッパーで６る。Inside the insertion cylinder (101), there are provided an air supply path j and a water supply channel 4 which are open at the tip and communicate with the piping system (2) of the main body A as appropriate), and a power cord is installed in the center. A hole for insertion is provided, and a preliminary conductive end protruding from the tip thereof is connected to the power cord and is in a male-female relationship with the conductive terminal (11'). Note that (to) is a water supply connector connected to the above-mentioned supply channel (C), and the water supply hose ω' is connected to this. (3) 1 is an air supply liquid reservoir connected to the above-mentioned air supply channel (■) The air supply hose 01)' is connected to this. 03 is a flexible hose connected to the mounting ring a11' of the external tube (1?), and each hose ■' and G1)' and the power source are connected inside. A cord is built in. The east side is operated by a stopper installed at the rear of the small diameter part si 1 of the 14+.

而して本体Ａを継手部材Ｂから取り外した状態では、第
３図に示すようにスライドリング（１３１が鋼球Ｈを外
方へ押上げ、かつ鋼球０９は操作リングｆｉ４１の大径
Ｓω内に位置しており、この状態から本体Ａを継手部材
Ｂに連結するときは、嵌合四部（３）内に挿入筒体α〔
を押し込む。すると接続筒（６）がスライドリングｔｌ
：ｌコイルはねｔ１７１に抗して押圧し、鋼球口９は接
続筒（６）に設けた環状溝（７）内に落ち込んで係合す
ると共に、操作リング（１４１の傾斜段部ｔ２１＋が鋼
球ａ９より外されるから該操作リング０４１は前進して
小径部■により鋼球（１９の外面が押えられ、従って鋼
球α９と環状溝（７）との保合８襲は確実となり、また
ストッパー（ト）が鋼球■に当接する。この様にして挿
入筒体０１は嵌合筒体（４１内に０リング（９）を介し
て回転自在に嵌合され、また外挿管＋１３は接ｆｆ　ｓ
ｆ６＋に対し鋼球ａ９を介して回転自在に連結され、更
に通孔（ＪＴｏ内で、１対の導電端子（１）′と■とが
摺接自在に接合される。When the main body A is removed from the joint member B, as shown in FIG. When connecting the main body A to the joint member B from this state, insert the inserted cylinder α into the fitting part (3).
Push in. Then, the connecting tube (6) is attached to the slide ring tl.
:l The coil presses against the spring t171, and the steel ball port 9 falls into and engages the annular groove (7) provided in the connecting tube (6), and the inclined stepped portion t21+ of the operating ring (141) Since it is removed from the steel ball a9, the operating ring 041 moves forward and the outer surface of the steel ball (19) is pressed by the small diameter portion (2), thus ensuring the engagement of the steel ball (a9) and the annular groove (7). Also, the stopper (T) comes into contact with the steel ball (2).In this way, the insertion cylinder 01 is rotatably fitted into the fitting cylinder (41) via the O ring (9), and the outer tube +13 is contact ff s
It is rotatably connected to f6+ via a steel ball a9, and a pair of conductive terminals (1)' and 2 are slidably connected within the through hole (JTo).

そして給気ホースＣγからの加圧空気は給気路Ｇを、筺
た給水ホースＣ１１ｌ’からの水は給水路＠を介してそ
れぞれ本体Ａに供給されると共に、電源コード＠を介し
て点燈された電球（至）の光はオプチカルファイバ（１
１ｔ−通って本体Ａの先端部に達し、口腔内の患部を照
明する。The pressurized air from the air supply hose Cγ is supplied to the main body A via the air supply path G, and the water from the water supply hose C11l' is supplied to the main body A via the water supply channel @, and the light is turned on via the power cord @. The light from the light bulb (to) is transmitted through an optical fiber (1
1t, and reaches the tip of the main body A, illuminating the affected area in the oral cavity.

つぎに本体Ａ’に継手部材Ｂから分離するときは、操作
リングミ４１ｔコイルばね囲に抗して後方へ引けば鋼球
（１！ＩＩは大径部■と対向し、この状態から本体Ａｔ
−前方へ牽引すると鋼球錦と環状溝（７）との保合が解
かれ、該本体Ａｅ引抜くことができる。この引抜き操作
に伴ってスライドリング（１３１がコイルばね（１７１
により前進してその外周面で再び鋼球ａ９を押上げ、か
つ操作リング０４は後退した状態で鋼球α９と傾斜段部
（２１１とが当接して、第３図に示す機に嵌合筒体＋４
１と挿入筒体ａ１とが嵌合し得る状態となる。Next, when separating the main body A' from the joint member B, pull the operating ring 41t backward against the coil spring surround, and the steel ball (1!
- When pulled forward, the engagement between the steel ball stud and the annular groove (7) is released, and the main body Ae can be pulled out. Along with this pulling operation, the slide ring (131 is a coil spring (171)
moves forward and pushes up the steel ball a9 again with its outer circumferential surface, and with the operation ring 04 retracted, the steel ball α9 and the inclined stepped portion (211) come into contact with each other, and the fitting tube is inserted into the machine shown in Fig. 3. body +4
1 and the insertion cylinder a1 become fitable.

なお上記において、本体Ａｌｌに挿入筒体帥を、また継
手部材Ｂｇ＠に嵌合凹部（４）ａを夫々設けてもよいこ
と、さらに上記において、本体Ａ側に、保持リングα】
）、鋼球（１９、スライドリングｎ３＋、操作リングＩ
及びスプリング（１６１，ｎ７１を夫々設け、かつ継手
部材Ｂ側に、環状溝（６１ａを有した接続筒（６）を設
けてもよいことは勿論である。In the above, it is noted that the main body All may be provided with an insertion cylinder sleeve, and the joint member Bg@ may be provided with a fitting recess (4)a, and furthermore, in the above, a retaining ring α] may be provided on the main body A side.
), steel ball (19, slide ring n3+, operation ring I
Of course, it is also possible to provide the springs (161, n71, respectively) and the connecting tube (6) having the annular groove (61a) on the joint member B side.

発明の効果 以上のように本願によれば、操作リング全摺動して本体
と継手部材とを分離した状態においては、スライドリン
グにより内方に押圧された鋼球に、操作リングの内周に
設けた小径部が係止して操作リングの復元が阻止され、
筐たこのせ態から本体を継手部材に接続するときは、嵌
合筒体を保持リング内に嵌挿する丈で、鋼球と環状溝と
の保合がなされるものであるから、本体と継手部材との
着脱操作が極めて簡単に行うことができて、使用に頗る
便利である。Effects of the Invention As described above, according to the present application, when the operation ring is fully slid and the main body and the joint member are separated, the steel balls pressed inward by the slide ring are exposed to the inner periphery of the operation ring. The small diameter section provided locks and prevents the operating ring from restoring.
When connecting the main body to the joint member from the position of the housing, the length of the mating cylinder is such that it can be inserted into the retaining ring, and the steel ball and the annular groove are engaged. It is extremely convenient to use because it can be attached and detached from the joint member very easily.

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

図面は本発明の実施例を示し、′；７１図は連結した状
態を示す縦断正面図、第２図は本体の一部を示す縦断正
面図、第３図は継手部材を示す一部縦断正面図である。 図面において、Ａは治療器異本体、Ｂは継手部材、（１
）は通電コード、（１）′は導電端子、（４１は嵌合筒
体、（５）は軸筒、（６１は接続筒、（７１は環状溝、
Ｈは挿入筒体、０１１は保持リング、ａ１ビは取付リン
グ、０２は外挿管、０３１はスライドリング、０４１は
操作リング、（１６１，Ｑ７＋はコイルばね、（１８は
貫通孔、０は鋼球、翰は大径部、Ｇｌ＋は傾斜段部、（
２２１は小径部、■は給気路、■は給水路、＠は電源コ
ード、（ハ）は導電端子、艷′は給水ホース、Ｃ３１１
’は給気ホース、ｒ３ｚは可撓性ホースである。 特許出願人　株式会社吉田製外順The drawings show embodiments of the present invention; Fig. 71 is a longitudinal sectional front view showing a connected state, Fig. 2 is a longitudinal sectional front view showing a part of the main body, and Fig. 3 is a partially longitudinal sectional front view showing a joint member. It is a diagram. In the drawings, A is a different body of the treatment device, B is a joint member, (1
) is the energizing cord, (1)′ is the conductive terminal, (41 is the fitting cylinder, (5) is the shaft cylinder, (61 is the connection cylinder, (71 is the annular groove,
H is the insertion cylinder, 011 is the retaining ring, a1 is the mounting ring, 02 is the external tube, 031 is the slide ring, 041 is the operation ring, (161, Q7+ is the coil spring, (18 is the through hole, 0 is the steel ball) , the kiln is the large diameter part, Gl+ is the sloped step part, (
221 is the small diameter part, ■ is the air supply path, ■ is the water supply channel, @ is the power cord, (c) is the conductive terminal, 艷′ is the water supply hose, C311
' is an air supply hose, and r3z is a flexible hose. Patent applicant: Yoshida Seigaijun Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 接続される器具本体と継手部材とのいづれか一方の部材
に、端部外周面に環状溝を形成した嵌合筒体を設け、ま
たその他方の部材に、前記嵌合筒体の外周に嵌合する保
持リングと、該保持リングの円周方向に設けた複数の貫
通孔に嵌合保持されかつ前記保持リングの厚味より大水
い径をもつ鋼球と、スプリングにより弾圧されかつ内周
に前記鋼球を内方に押圧する小径部を有した摺動自在に
操作リングとを備え、接続状態で前記鋼球を前記環状溝
に係合して成る菌科治療器具における接続機１１におい
て、前記保持リングの内周に、常時端部方向に弾圧され
て非接続状態において前記鋼球を外方に押圧すると共に
、接続時に、前記嵌合筒体により抑圧されて前記鋼球の
抑圧状態を解く摺動自在のスライドリングを設けたこと
を＠徴とする歯科治療器具における接続機構。A fitting cylindrical body having an annular groove formed on the outer circumferential surface of the end is provided on one of the instrument body and the joint member to be connected, and the other member is fitted with the outer periphery of the fitting cylindrical body. a retaining ring, a steel ball that is fitted and held in a plurality of through holes provided in the circumferential direction of the retaining ring and has a diameter larger than the thickness of the retaining ring; A connecting device 11 for a mycological treatment instrument comprising a slidably operating ring having a small diameter portion that presses the steel ball inward, and engaging the steel ball in the annular groove in a connected state, The inner periphery of the retaining ring is always pressed toward the end to press the steel balls outward in the unconnected state, and is suppressed by the fitting cylindrical body to keep the steel balls in the suppressed state when connected. A connection mechanism in a dental treatment instrument characterized by a slidable slide ring.