JPH11247602A - Air motor - Google Patents
Air motorInfo
- Publication number
- JPH11247602A JPH11247602A JP10047790A JP4779098A JPH11247602A JP H11247602 A JPH11247602 A JP H11247602A JP 10047790 A JP10047790 A JP 10047790A JP 4779098 A JP4779098 A JP 4779098A JP H11247602 A JPH11247602 A JP H11247602A
- Authority
- JP
- Japan
- Prior art keywords
- air supply
- air
- casing
- stator
- peripheral surface
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01C13/02—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby for driving hand-held tools or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
- A61C1/05—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with turbine drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Manufacture Of Motors, Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、エアーグラインダ
ーのような研削・研磨作業に用いる工業用機具、或いは
歯科用ハンドピース等の駆動源として用いるエアーモー
タに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air motor used as a driving source for industrial equipment used for grinding and polishing operations such as an air grinder or a dental handpiece.
【０００２】[0002]
【従来の技術】今日、研削・研磨作業は勿論のこと、歯
科用ハンドピース等の駆動源として使用されるエアーモ
ータは、一般的に図３に示す構造になっている。複数の
ベーン12を備えたロータ２を収容したステータ１を、パ
イプ状のケーシング３に嵌挿着し、そのパイプ状のケー
シング３に研磨・研削具ユニット（動力ユニット）４を
分離可能に接続し、ステータ１とケーシング３との間に
給気経路５、排気経路６を形成し、ケーシング３の後部
に給気用継手７を設け、更に給気用継手７に対して進退
可能に螺合して弁開度を調整するグリップ部８を設けて
なり、その給気用継手７及び給気経路５でステータ１内
に圧搾エアーを圧送してロータ２を回転させるようにな
っている。給気用継手７の接続に際しては、給気用継手
７の先端部17の側周面に外螺子17ｃを螺設し、その外螺
子17ｃをケーシング３の後端側内周面に螺設した内螺子
43に螺合して給気経路５、排気経路６を連通させ、更に
緩まないようにその螺合部を接着剤（図示せず）で固定
している。2. Description of the Related Art At present, an air motor used as a drive source for a dental handpiece as well as a grinding / polishing operation generally has a structure shown in FIG. A stator 1 containing a rotor 2 having a plurality of vanes 12 is fitted and inserted into a pipe-shaped casing 3, and a polishing / grinding tool unit (power unit) 4 is detachably connected to the pipe-shaped casing 3. An air supply path 5 and an exhaust path 6 are formed between the stator 1 and the casing 3, an air supply joint 7 is provided at a rear portion of the casing 3, and furthermore, the air supply joint 7 is threadably engaged with the air supply joint 7. A grip portion 8 for adjusting the valve opening is provided, and compressed air is fed into the stator 1 through the air supply joint 7 and the air supply path 5 to rotate the rotor 2. When connecting the air supply joint 7, an external screw 17 c is screwed on the side peripheral surface of the distal end portion 17 of the air supply joint 7, and the external screw 17 c is screwed on the rear end inner peripheral surface of the casing 3. Inner screw
The air supply path 5 and the exhaust path 6 are connected to each other by screwing to 43, and the screwed portion is fixed with an adhesive (not shown) so as not to be further loosened.
【０００３】[0003]
【発明が解決しようとする課題】ところで、パイプ状の
ケーシング３は金属製であり、ダイキャスト成形されて
いる。しかしながら、ケーシング３の内周面に内螺子43
を螺設するため、スクリュウ型を製作容易し、型合せ時
にそのスクリュー型をセットしての成形を余儀なくさ
れ、成形コストが高騰するばかりでなく、成形工程が複
雑化する問題がある。また，１００度程度で加熱し前記
接着剤を軟化させて拭い去った後でないと給気用継手を
取り外すことができず、専門のユーザーであっても分解
が簡単に行えない問題もあった。更に、グリップ部８は
左回転で開弁、右回転で閉弁する仕組みになっているも
のの、不注意に左回転を継続するとグリップ部８が給気
用継手７から外れて落下することがあり、専門知識を持
たない使用者にとっては使用勝手が悪いものであった。The pipe-shaped casing 3 is made of metal and is formed by die-casting. However, the inner screw 43 is provided on the inner peripheral surface of the casing 3.
Since the screw is provided, the screw mold is easily manufactured, the screw mold must be set at the time of mold matching, and molding must be performed. This not only increases the molding cost but also complicates the molding process. In addition, the air supply joint cannot be removed unless the adhesive is softened and wiped off by heating at about 100 ° C., so that there is a problem that even a professional user cannot easily disassemble the joint. Furthermore, although the grip portion 8 is configured to open with a left rotation and close with a right rotation, if the left rotation is inadvertently continued, the grip portion 8 may come off from the air supply joint 7 and fall. However, it is not easy for a user who does not have specialized knowledge to use it.
【０００４】本発明は、従来事情に鑑みてなされたもの
で、その目的とする処は、成形性が非常に良く、しかも
接続が強固で且つ分解作業が簡単なエアーモータを提供
することにある。更に他の目的とする処は、グリップ部
が脱落することがないエアーモータを提供することにあ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the conventional circumstances, and an object thereof is to provide an air motor having very good moldability, strong connection, and easy disassembly. . Still another object is to provide an air motor in which the grip portion does not fall off.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に講じた技術的手段は、請求項１は、複数のベーンを備
えたロータを、その軸芯とステータ内周中心とを偏心さ
せてステータ内に回転可能に内挿し、前記ステータをパ
イプ状のケーシング内に嵌挿着すると共に、ステータと
ケーシングとの間に給気経路、排気経路を形成し、ケー
シングの後部に給気用継手を設け、その給気用継手及び
給気経路を介してステータ内に圧搾エアーを圧送してロ
ータを回転させるエアーモータにおいて、前記ケーシン
グの後端外周面に、外螺子を螺設すると共に、同後端内
周面に、給気筒部とその給気筒部に連設され同給気筒部
よりも大径な先端部とを備えた給気用継手のその先端部
を回転不能で且つ直線的に出し入れする案内凹凸条を刻
設し、前記先端部の給気筒部側の後面の同一円周上に複
数個の第１突子を形成し、前記外螺子に、給気筒部を挿
通する馬鹿孔を開孔したナット部材を進退可能に螺合
し、そのナット部材の前記第１突子との対応面における
同一円周上にその第１突子に圧接係止する第２突子を複
数個突設していることを要旨とする。また請求項２は、
請求項１記載の給気用継手が圧搾空気の供給源に連絡す
る給気孔を備えると共に、その給気用継手に螺合させ前
進によって給気孔を閉孔し且つ後退で同給気孔の開度を
調整するグリップ部を備え、給気用継手の後端側に、グ
リップ部の所定以上の後退を阻止する割リングを係脱可
能に設けたことを要旨とする。According to a first aspect of the present invention, there is provided a rotor having a plurality of vanes, the rotor having a plurality of vanes being decentered from an axis of the rotor to an inner peripheral center of the stator. The stator is rotatably inserted into the stator, the stator is fitted and inserted into a pipe-shaped casing, and an air supply path and an exhaust path are formed between the stator and the casing. In an air motor for supplying compressed air into the stator via the air supply joint and the air supply path to rotate the rotor, an external screw is screwed on the outer peripheral surface of the rear end of the casing, and In the inner peripheral surface of the end, the tip end of the air supply joint having the air supply cylinder portion and the front end portion which is connected to the air supply cylinder portion and has a larger diameter than the air supply cylinder portion is non-rotatably and linearly inserted and removed. Engraving guide irregularities to A plurality of first protrusions are formed on the same circumference on the rear surface of the air supply cylinder portion side, and a nut member having a stupid hole through which the air supply cylinder portion is inserted is screwed to the outer screw so as to be able to advance and retreat, The gist is that a plurality of second protruding members that are pressed into engagement with the first protruding member are provided on the same circumference on the surface of the nut member corresponding to the first protruding member. Claim 2
The air supply joint according to claim 1, further comprising an air supply hole communicating with a supply source of compressed air, screwing the air supply joint, closing the air supply hole by moving forward, and opening the air supply hole by retreating. The invention is characterized in that a split ring is provided at the rear end side of the air supply joint so as to prevent the grip portion from retreating more than a predetermined amount.
【０００６】上記技術的手段によれば下記の作用を奏す
る。 （請求項１）本エアーモータは、パイプ状のケーシング
後端側内周面に形成した直線的な案内凹凸条に給気用継
手の側周面に形成している被案内凹凸条を回転不能に直
線的に係合させた後、ナット部材を前記ケーシングの後
端側外周面に螺設する外螺子に螺合させ、その第２突子
を給気用継手における先端部の第１突子に圧接係止す
る。この第１突子、第２突子との係止効果でナット部材
の緩みが防止される。尚、ナット部材と給気用継手は一
方または双方を硬質合成樹脂製とするのが好ましく、そ
の場合には突子の弾性力を利用して突子同士を強く係止
することができる。そして、第１突子、第２突子との係
止が解除されるようにナット部材を回転して外せば、給
気用継手は分離され、ケーシング内の修理、保守点検
（ロータ、ステータ、ベーン等）、ケーシングそのもの
の交換等が行えることになる。前記ケーシング後端側内
周面の案内凹凸条はキー、セレーション、スプライン等
と同様な機能を持つため、後加工で容易に形成でき、ま
た外螺子も簡単に後加工で形成できる。 （請求項２）本エアーモータは、所定の弁開度になる
と、グリップ部の後端が給気用継手後端の割リングに衝
突してそれ以上のグリップ部の後退を阻止する。According to the above technical means, the following effects are obtained. (Claim 1) The present air motor cannot rotate the guided irregularities formed on the side peripheral surface of the air supply joint on the linear guide irregularities formed on the inner peripheral surface on the rear end side of the pipe-shaped casing. After that, the nut member is screwed into an external screw threaded on the outer peripheral surface on the rear end side of the casing, and the second protrusion is the first protrusion at the distal end of the air supply joint. And press-fit. The locking effect between the first and second protrusions prevents the nut member from being loosened. Preferably, one or both of the nut member and the air supply joint are made of a hard synthetic resin. In this case, the protrusions can be strongly locked using the elastic force of the protrusions. Then, if the nut member is rotated and removed so that the engagement with the first and second protrusions is released, the air supply joint is separated, and repair, maintenance and inspection (rotor, stator, Vane etc.), and the casing itself can be replaced. Since the guide irregularities on the inner peripheral surface on the rear end side of the casing have the same functions as keys, serrations, splines, etc., they can be easily formed by post-processing, and the external threads can also be easily formed by post-processing. (Claim 2) In the present air motor, when a predetermined valve opening degree is reached, the rear end of the grip portion collides with the split ring at the rear end of the air supply joint, and further retraction of the grip portion is prevented.
【０００７】[0007]
【発明の実施の形態】次に、本発明の実施の形態を図面
に基づいて説明する。図１及び図２は本発明エアーモー
タの実施の形態を示している。符号Ａはそのエアーモー
タである。Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show an embodiment of the air motor of the present invention. Symbol A is the air motor.
【０００８】このエアーモータＡは、複数のベーン12…
を備えたロータ２をその軸芯をステータ１内周中心に対
して偏心させてステータ１内に回転可能に内挿し、前記
ステータ１をパイプ状のケーシング３内に嵌挿着し、そ
のパイプ状のケーシング３の先端に研磨具・研削具を有
する加工ユニット４を分離可能に接続し、同ケーシング
３とステータ１との間に給気経路５、排気経路６を形成
し、ケーシング３の後部に給気用継手７を設け、その給
気用継手７に給気量を可変するグリップ部８を進退可能
に設けて構成されている。The air motor A includes a plurality of vanes 12.
Is rotatably inserted into the stator 1 with its shaft center eccentric with respect to the center of the inner periphery of the stator 1, and the stator 1 is fitted and inserted into a pipe-shaped casing 3. A processing unit 4 having a polishing tool / grinding tool is detachably connected to the tip of the casing 3 of the above, and an air supply path 5 and an exhaust path 6 are formed between the casing 3 and the stator 1. An air supply joint 7 is provided, and the air supply joint 7 is provided with a grip portion 8 capable of changing an air supply amount so as to be able to advance and retreat.
【０００９】前記ケーシング３は、金属製であり、その
後端側外周面の凹段部13ａに外螺子13を螺設し、内部の
給気経路５、排気経路６に連通する給気口23ａと排気口
23ｂとを各々多孔状に開孔した後リテーナー23後方の後
端側内周面に案内凹凸条33を刻設している。The casing 3 is made of metal. An external screw 13 is screwed into a concave step 13a on the outer peripheral surface on the rear end side, and an air supply port 23a communicating with an internal air supply path 5 and an exhaust path 6 is formed. exhaust port
After the holes 23b and 23b are respectively opened in a porous manner, guide irregularities 33 are engraved on the inner peripheral surface on the rear end side behind the retainer 23.
【００１０】この案内凹凸条33は、本実施の形態ではセ
レーションであり、前記外螺子13と同様にケーシング３
をダイキャスト成形した後の後加工で容易に形成でき
る。In the present embodiment, the guide irregularities 33 are serrations, and like the outer screw 13, the casing 3
Can be easily formed by post-processing after die casting.
【００１１】給気用継手７は、硬質合成樹脂製であり、
前記案内凹凸条33にケーシング３の後端側から直線的に
回転不能に係合して後リテーナー23に当接する先端部17
とその先端部17に連設された給気筒部27とを備え、ナッ
ト部材９で締結される。The air supply joint 7 is made of a hard synthetic resin.
A front end portion 17 that linearly and non-rotatably engages with the guide irregularities 33 from the rear end side of the casing 3 and contacts the rear retainer 23.
And an air supply cylinder 27 connected to the tip 17 thereof, and fastened by the nut member 9.
【００１２】前記先端部17は、給気筒部27と後リテーナ
ー23の前記給気口23ａに連通する入口と、後リテーナー
23の前記排気口23ｂに連通する出口とを有し、側周面に
前記案内凹凸条33に直線的に係合する被案内凹凸条17ｂ
を刻設すると共に、後面に第１突子17ａを同一円周上に
複数個等間隔をおいて突設している。The front end portion 17 has an inlet communicating with the air supply cylinder 27 and the air supply port 23a of the rear retainer 23, and a rear retainer.
23 having an outlet communicating with the exhaust port 23b, and the guided uneven strip 17b linearly engaging with the guide uneven strip 33 on the side peripheral surface.
And a plurality of first projections 17a are provided on the rear surface at equal intervals on the same circumference.
【００１３】ナット部材９は、硬質合成樹脂製であり、
中途部分に隔壁29を有する構造に形成し、その隔壁29を
境にする後リテーナー23側（前半部側）の内周面にケー
シング３後端側外周面の外螺子13に螺合する内螺子19を
螺設すると共に、その隔壁29中央部に前記給気筒部27を
挿通する馬鹿孔29ａを開孔し、その隔壁29の前記第１突
子17ａと相対する第２突子29ｂを同一円周上に適宜間隔
をおいて複数個突設している。The nut member 9 is made of a hard synthetic resin.
An inner screw formed into a structure having a partition wall 29 in the middle part, and screwed to the outer screw 13 on the outer peripheral surface on the rear end side of the casing 3 on the inner peripheral surface on the rear retainer 23 side (front half side) bordering the partition wall 29 At the same time, a stupid hole 29a through which the air supply cylinder 27 is inserted is opened in the center of the partition wall 29, and the second protrusion 29b of the partition wall 29 facing the first protrusion 17a is formed in the same circle. A plurality of projections are provided on the circumference at appropriate intervals.
【００１４】前記する給気筒部27は、内部を縦断し一部
が鍔状に突出する中間鍔状突出部27ａで前後に遮断され
た前筒部27ｂと後筒部27ｃを一体に備え、後筒部27ｃは
内部に前記中間鍔状突出部27ａまで至る後側給気路27ｃ
-1を開路すると共に後端の竹の子状の接続部27ｃ-2の前
方に外螺子27ｃ-3を、またその外螺子27ｃ-3の前方に後
側給気路27ｃ-1部分に連通する第１給気孔27ｃ-4を開孔
し、前筒部27ｂは、後リテーナー23の給気口23ａに連通
する前側給気路27ｂ-1を開路すると共に前記中間鍔状突
出部27ａの前方に前記前側給気路27ｂ-1に連通する第２
給気孔27ｂ-2を開孔し、その第２給気孔27ｂ-2前方に前
記する中間鍔状突出部27ａよりも若干大径でＯリングを
嵌着した前側鍔状突出部27ｃ-5を周設した周知の構造に
なっている。The above-described air supply cylinder portion 27 is integrally provided with a front cylinder portion 27b and a rear cylinder portion 27c which are longitudinally interrupted and partially cut off at the front and rear by an intermediate flange-like projection portion 27a projecting in a flange shape. The cylindrical portion 27c has a rear air supply passage 27c extending to the intermediate flange-shaped protrusion 27a.
-1 and an outer screw 27c-3 in front of the bamboo-shaped connecting portion 27c-2 at the rear end and a rear air supply passage 27c-1 in front of the outer screw 27c-3. 1 The air supply hole 27c-4 is opened, and the front cylinder portion 27b opens the front air supply passage 27b-1 communicating with the air supply port 23a of the rear retainer 23, and the front cylinder portion 27b is provided in front of the intermediate flange-shaped protrusion 27a. The second communicating with the front air supply passage 27b-1
An air supply hole 27b-2 is opened, and a front flange-like protrusion 27c-5 having an O-ring fitted slightly larger in diameter than the intermediate flange-like protrusion 27a in front of the second air supply hole 27b-2 is formed. It has a well-known structure.
【００１５】グリップ部８は、内筒18、外筒28を一体に
有する２重構造とし、両筒18、28間に消音フィルタ38を
装着する共に両端間の後端を開放して、前記隔壁29を境
にする後半部側のナット部材９の外周面に段設した凹段
部39にその外筒28を進退可能に外嵌挿すると共に、同隔
壁29を境にする後半部側のナット部材９内にその内筒18
を遊挿して前記馬鹿孔29ａ及びその遊挿によるナット部
材９後半部との空間29ｃを利用して前記出口及び両筒1
8、28間から排気を消音して外部に排出するようになっ
ており、またその内筒18は、前記する外螺子27ｃ-3に対
応する雌螺子18ａ及び中間鍔状突出部27ａの後側側面が
当接する着座段面18ｂとその着座段面18ｂの前方を構成
する拡開筒部18ｃを備えると共に、先端に、後退させる
ことで中間鍔状突出部27ａと拡開筒部18ｃ内周面との間
に形成される隙間48を介して第１給気孔27ｃ-4から第２
給気孔27ｂ-2にエアーが供給されて後リテーナー23の給
気口23ａに給気するようになっている（図１参照）。The grip portion 8 has a double structure having an inner cylinder 18 and an outer cylinder 28 integrally. A sound deadening filter 38 is mounted between the two cylinders 18 and 28, and a rear end between both ends is opened. The outer cylinder 28 is inserted into the concave step portion 39 provided on the outer peripheral surface of the nut member 9 on the rear half side at the boundary of 29 so as to be able to advance and retreat, and the nut on the rear half side of the partition wall 29 at the boundary The inner cylinder 18 in the member 9
The outlet and the two cylinders 1 are inserted by using the space 29c between the idiot hole 29a and the rear half of the nut member 9 by the loose insertion.
The exhaust is silenced from between 8, 28 and discharged to the outside, and the inner cylinder 18 has a female screw 18a corresponding to the outer screw 27c-3 and a rear side of the intermediate flange-shaped protrusion 27a. A seating step surface 18b with which the side surface abuts, and an expanding cylinder portion 18c constituting the front of the seating step surface 18b are provided. From the first air supply hole 27c-4 through a gap 48 formed between
Air is supplied to the air supply hole 27b-2 to supply air to the air supply port 23a of the rear retainer 23 (see FIG. 1).
【００１６】また、前記するグリップ部８は、第１給気
孔27ｃ-4全体が拡開筒部18ｃに臨むまで後退するとそれ
以上後退させても弁開度は不変であり、回転を継続する
と外れてしまう。これを防止するために前記竹の子状の
接続部27ｃ-2に弁開度が一定になった時点でグリップ部
８の後端をストップする割リング58が給気用継手７の後
端部であるその接続部27ｃ-2に形成した係合溝27’ｃ-2
に係脱可能に取り付けられている。When the grip portion 8 is retracted until the entire first air supply hole 27c-4 faces the expanding cylinder portion 18c, the valve opening is not changed even if the grip portion 8 is further retracted. Would. In order to prevent this, a split ring 58 that stops the rear end of the grip portion 8 when the valve opening degree becomes constant at the bamboo shoot-like connection portion 27c-2 is the rear end portion of the air supply joint 7. An engagement groove 27'c-2 formed in the connection portion 27c-2.
It is detachably attached to.
【００１７】このように構成された本実施の形態エアー
モータは、前記第１突子17ａと第２突子29ｂとの係止効
果で緩まずナット部材９の締結状態を維持する。修理点
検のために、分解する場合には割リング58を外してグリ
ップ部８を後退させて外し、ナット部材９をその係止関
係が解除されるように人為的に強制的に回転させてその
螺合を解除する。これにより給気用継手７とパイプ状の
ケーシング３とが分離される。尚、複数のベーン12、ロ
ータ２、ステータ１を交換する場合には加工ユニット４
をそのケーシング３から外して同ケーシング３自体を交
換する。The air motor according to the present embodiment having the above-described structure maintains the fastened state of the nut member 9 without loosening due to the locking effect between the first projection 17a and the second projection 29b. When disassembling for repair and inspection, the split ring 58 is removed, the grip portion 8 is retracted and removed, and the nut member 9 is manually and forcibly rotated so as to release its locking relationship. Release the screw. Thereby, the supply joint 7 and the pipe-shaped casing 3 are separated. In the case where a plurality of vanes 12, the rotor 2 and the stator 1 are exchanged, the processing unit 4
Is removed from the casing 3 and the casing 3 itself is replaced.
【００１８】[0018]
【発明の効果】本発明は以上のように構成しているか
ら、ダイキャスト成形したパイプ状のケーシングに、キ
ー、セレーション、スプライン等と同様な機能を持つ案
内凹凸条と外螺子とを後加工で施すことができる。その
ため、別途スクリュー型を製作容易し、それを型合わせ
時にセットしての成形を必要とせず、成形コストが低減
され、低廉下で提供することができる。その上、第１突
子、第２突子との係止効果でナット部材の緩みが防止さ
れるから、従来のように給気用継手をパイプ状のケーシ
ングの後端側内周面に螺設した内螺子に螺合した後、接
着剤で固定せずとも緩みがない状態でしっかりと接続で
き、また接着剤を軟化させて拭い去ることを必要とせず
にナット部材を回転して解除するだけの簡単な操作で給
気用継手をケーシングから外して、分解が行える。しか
も、グリップ部の後退量が割リングに衝突するまでの長
さに規制されるから、後退量が大きければ弁開度が大き
くなるものと錯覚して使用者（素人を含む）がグリップ
部を大きく回転してもグリップ部が脱落せず、使用し易
い。As described above, the present invention is constructed as described above, so that a guide uneven surface having the same function as a key, a serration, a spline and the like and an external thread are post-processed in a pipe-shaped casing formed by die casting. Can be applied. Therefore, it is easy to manufacture a screw mold separately, and it is not necessary to set and mold the screw mold at the time of mold matching, so that the molding cost is reduced and the screw mold can be provided at low cost. In addition, since the nut member is prevented from being loosened by the locking effect between the first and second protrusions, the air supply joint is screwed onto the rear end side inner peripheral surface of the pipe-shaped casing as in the related art. After screwing into the set internal screw, it can be securely connected without loosening without fixing with an adhesive, and rotating and releasing the nut member without the need to soften the adhesive and wipe it off With just a simple operation, the air supply joint can be removed from the casing and disassembled. In addition, since the amount of retraction of the grip portion is limited to the length before the collision with the split ring, the user (including amateurs) illusions that a larger amount of retraction will increase the valve opening degree, and the user (including amateurs) will need to adjust the grip portion. The grip part does not fall off even if it is rotated greatly, and it is easy to use.
【図１】本実施の形態エアーモータの縦断面図。FIG. 1 is a longitudinal sectional view of an air motor according to an embodiment.
【図２】要部の分解斜視図。FIG. 2 is an exploded perspective view of a main part.
【図３】従来のエアーモータの縦断面図。FIG. 3 is a longitudinal sectional view of a conventional air motor.
Ａ ：エアーモータ 12：ベーン ２ ：ロータ １：ステータ ３ ：ケーシング ５：給気経路 ６ ：排気経路 13：外螺子 ７ ：給気用継手 27：給気筒部 17 ：先端部 33：案内凹凸条 17ａ：第１突子 29ｂ：第２突子 17ｂ：被案内凹凸条 27ｃ-4：第１給気孔（給気孔） 27ｂ-2：第２給気孔（給気孔） A: Air motor 12: Vane 2: Rotor 1: Stator 3: Casing 5: Air supply path 6: Exhaust path 13: External screw 7: Air supply joint 27: Air supply cylinder 17: Tip 33: Guide irregularities 17a : First protrusion 29b: Second protrusion 17b: Guided irregularities 27c-4: First air supply hole (air supply hole) 27b-2: Second air supply hole (air supply hole)
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年４月２０日[Submission date] April 20, 1999
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項１[Correction target item name] Claim 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
Claims (2)
芯とステータ内周中心とを偏心させてステータ内に回転
可能に内挿し、前記ステータをパイプ状のケーシング内
に嵌挿着すると共に、ステータとケーシングとの間に給
気経路、排気経路を形成し、ケーシングの後部に給気用
継手を設け、その給気用継手及び給気経路を介してステ
ータ内に圧搾エアーを圧送してロータを回転させるエア
ーモータにおいて、前記ケーシングの後端側外周面に、
外螺子を螺設すると共に、同後端側内周面に、給気筒部
とその給気筒部に連設され同給気筒部よりも大径な先端
部とを備えた給気用継手のその先端部を回転不能で且つ
直線的に出し入れする案内凹凸条を刻設し、前記先端部
の給気筒部側の後面の同一円周上に複数個の第１突子を
形成し、前記外螺子に、給気筒部を挿通する馬鹿孔を開
孔したナット部材を進退可能に螺合し、そのナット部材
の前記第１突子との対応面における同一円周上にその第
１突子に圧接係止する第２突子を複数個突設しているこ
とを特徴とするエアーモータ。A rotor having a plurality of vanes is rotatably inserted into a stator with its axis center and the center of the inner circumference of the stator decentered, and the stator is fitted and inserted into a pipe-shaped casing. Forming an air supply path and an exhaust path between the stator and the casing, providing an air supply joint at the rear of the casing, and forcing compressed air into the stator through the air supply joint and the air supply path. In the air motor that rotates the rotor, on the outer peripheral surface on the rear end side of the casing,
An external screw is screwed on the inner peripheral surface of the rear end side, and the air supply joint is provided with an air supply cylinder portion and a front end portion that is connected to the air supply cylinder portion and has a larger diameter than the air supply cylinder portion. Forming a guide ridge for guiding the tip end portion in a non-rotatable and linear manner, and forming a plurality of first projections on the same circumference on the rear surface of the tip end portion on the side of the air supply cylinder; , A nut member having an idiot hole through which the air supply cylinder portion is inserted is screwed so as to be able to advance and retreat, and the nut member is pressed against the first protrusion on the same circumference on the surface corresponding to the first protrusion. An air motor comprising a plurality of second protrusions that are engaged.
絡する給気孔を備えると共に、その給気用継手に螺合さ
せ前進によって給気孔を閉孔し且つ後退で同給気孔の開
度を調整するグリップ部を備え、給気用継手の後端側
に、グリップ部の所定以上の後退を阻止する割リングを
係脱可能に設けたことを特徴とする請求項１記載のエア
ーモータ。2. The air supply joint has an air supply hole communicating with a supply source of compressed air, and is screwed into the air supply joint to close the air supply hole by moving forward and open the air supply hole by retreating. 2. The air motor according to claim 1, further comprising a grip portion for adjusting the degree, and a split ring for preventing the grip portion from retreating by a predetermined amount or more is detachably provided at a rear end side of the air supply joint. .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10047790A JP3031671B2 (en) | 1998-02-27 | 1998-02-27 | Air motor |
| KR1019990006484A KR100575438B1 (en) | 1998-02-27 | 1999-02-26 | Air motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10047790A JP3031671B2 (en) | 1998-02-27 | 1998-02-27 | Air motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11247602A true JPH11247602A (en) | 1999-09-14 |
| JP3031671B2 JP3031671B2 (en) | 2000-04-10 |
Family
ID=12785179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10047790A Expired - Fee Related JP3031671B2 (en) | 1998-02-27 | 1998-02-27 | Air motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3031671B2 (en) |
| KR (1) | KR100575438B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003107324A1 (en) * | 2002-06-01 | 2003-12-24 | Joong-Deog Choi | An apparatus for generating of sound and rotating of light by air flow |
| JP2010519961A (en) * | 2007-02-28 | 2010-06-10 | メドトロニック・ピーエス・メディカル・インコーポレーテッド | Motor assembly for powered surgical instruments |
| KR101304681B1 (en) * | 2012-07-30 | 2013-09-06 | 주식회사 티엠씨 | Deburring apparatus for processed metal product using air grinder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900006866Y1 (en) * | 1987-06-02 | 1990-08-02 | 노기배 | Adjustable plagpole |
| KR100261591B1 (en) * | 1992-10-22 | 2000-11-01 | 이중구 | Grindig apparatus |
| JP3905556B2 (en) * | 1995-05-25 | 2007-04-18 | インプラント・イノヴェーションズ・インコーポレーテッド | Anti-rotation type connection mechanism |
| US5794187A (en) * | 1996-07-16 | 1998-08-11 | Audiological Engineering Corporation | Method and apparatus for improving effective signal to noise ratios in hearing aids and other communication systems used in noisy environments without loss of spectral information |
-
1998
- 1998-02-27 JP JP10047790A patent/JP3031671B2/en not_active Expired - Fee Related
-
1999
- 1999-02-26 KR KR1019990006484A patent/KR100575438B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003107324A1 (en) * | 2002-06-01 | 2003-12-24 | Joong-Deog Choi | An apparatus for generating of sound and rotating of light by air flow |
| JP2010519961A (en) * | 2007-02-28 | 2010-06-10 | メドトロニック・ピーエス・メディカル・インコーポレーテッド | Motor assembly for powered surgical instruments |
| KR101304681B1 (en) * | 2012-07-30 | 2013-09-06 | 주식회사 티엠씨 | Deburring apparatus for processed metal product using air grinder |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100575438B1 (en) | 2006-05-03 |
| JP3031671B2 (en) | 2000-04-10 |
| KR19990072980A (en) | 1999-09-27 |
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