JPS6244497B2 - - Google Patents

Info

Publication number
JPS6244497B2
JPS6244497B2 JP58131742A JP13174283A JPS6244497B2 JP S6244497 B2 JPS6244497 B2 JP S6244497B2 JP 58131742 A JP58131742 A JP 58131742A JP 13174283 A JP13174283 A JP 13174283A JP S6244497 B2 JPS6244497 B2 JP S6244497B2
Authority
JP
Japan
Prior art keywords
needle
main body
vibrator
resonant frequency
body vibrator
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.)
Expired
Application number
JP58131742A
Other languages
Japanese (ja)
Other versions
JPS6021749A (en
Inventor
Kyoichi Maeda
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Priority to JP58131742A priority Critical patent/JPS6021749A/en
Publication of JPS6021749A publication Critical patent/JPS6021749A/en
Publication of JPS6244497B2 publication Critical patent/JPS6244497B2/ja
Granted legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/02Dental 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
    • A61C1/07Dental 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 vibratory drive, e.g. ultrasonic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00Filling or capping teeth
    • A61C5/40Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は振動式加工機における針状加工具の共
振周波数調整法に関するものである。 従来、振動式加工機の一例として、例えば特開
昭57−14341号公報に開示されているような、歯
科などにて使用される超音波洗浄機があつた。こ
の超音波洗浄機は歯牙の根管を洗浄するため、先
端に超音波振動するインサートチツプ針が取付け
てあつた。このインサートチツプ針は電歪振動子
などを設けた本体振動子に取付けられており、本
体振動子は自励振回路方式の駆動回路により駆動
させる場合が多いため、本体振動子の共振周波数
とインサートチツプ針の共振周波数とが略一致し
ていないとパワーロスが大きくなり駆動回路を高
電圧で駆動しなければならなかつた。このため発
熱の問題も生じていた。 また本体振動子の共振周波数とインサートチツ
プ針の共振周波数とを合わせる場合、本体振動子
の本体を削つたり、インサートチツプ針の側面を
削つたり長さを変えたりしなければならず、調整
が非常に煩雑であつた。 本発明の第1の目的は、振動式加工機の本体振
動子の共振周波数と針状加工具の共振周波数とを
極めて容易に略一致させることができる共振周波
数の調整法を提供することである。 本発明の第2の目的は、低電圧で駆動でき発熱
の少ない振動式加工機を提供することである。 以下本発明の一実施例を詳細に説明する。 第1図において、1は本体振動子であり、一例
として電気ひずみ変換器を用いている。すなわち
本体振動子1は電気ひずみ効果の大きいチタン酸
バリウム磁器などから形成された二つの電歪振動
子2,3の間と左方とに電極4,5を配設し、電
歪振動子2の右方に金属振動部材6を、電極5の
左方に金属振動部材7を位置させ、締付けねじ8
により締付けたボルト締めランジユバン形振動子
である。9は絶縁パイプであり、電極4,5およ
び締付ねじ8の接触を防止するものである。本体
振動子1は本実施例では厚み縦振動を行う電歪振
動子2,3を用いたバイモルフ振動子である。金
属振動部材6,7はステンレス鋼、ジユラルミン
などから形成されている。締付けねじ8は軸心に
送水路8aが設けられており、左端部には送水パ
イプを接続する接続部8bが設けられている。金
属部材6は軸心に送水路6aが設けられており、
送水路6aの左端部は締付けめねじ部6bが形成
され、右端部は取付けめねじ部6cが形成されて
いる。6dは本体振動子1を固定する固定つば部
であり、外周に複数の固定用めねじ部が形成され
ている。10は針状加工具であるインサートチツ
プ針であり、金属部材6の取付めねじ部6cにね
じ込まれる取付部10aと、この取付部に圧入さ
れている針受部10bと、この針受部に固着され
た針部10cとから構成される。取付部10aの
中心には送水路10dが形成され、これに連通し
て針受部10bには2本の送水路10eが形成さ
れている。送水路10eは針部10cに接近して
開口している。針部10cは、その固定端から長
さlだけ直線的に延出し、この直線長さlの位置
において角度θにて屈曲されている。 この本体振動子1およびインサートチツプ針1
0は、第2図示のようにケース11に固定され、
電極4,5は振動子駆動回路(図示せず。)に接
続され、送水パイプ12が接続部8bに接続され
る。そして第3図示のように歯牙13の根管14
内にインサートチツプ針10の針部10cを挿入
して振動させ、同時に送水パイプ12により水、
洗浄液を送つて根管14内を洗浄するのである。
本体振動子1は本実施例では約23.7KHzで振動す
るものであり、インサートチツプ針10は固定端
からの直線長さlおよび屈曲角度θを変えること
によりその共振周波数f0を下表のように変えるこ
とができた。
The present invention relates to a method for adjusting the resonance frequency of a needle-like processing tool in a vibratory processing machine. Conventionally, as an example of a vibrating processing machine, there has been an ultrasonic cleaning machine used in dentistry, etc., as disclosed in, for example, Japanese Unexamined Patent Publication No. 14341/1983. This ultrasonic cleaner was equipped with an insert tip needle that vibrated ultrasonically at the tip to clean the root canals of teeth. This insert tip needle is attached to a main body vibrator equipped with an electrostrictive vibrator, etc., and since the main body vibrator is often driven by a drive circuit of a self-excitation circuit type, the resonant frequency of the main body vibrator and the insert chip If the resonant frequency of the needle does not substantially match, power loss increases and the drive circuit must be driven at a high voltage. This also caused the problem of heat generation. Furthermore, in order to match the resonant frequency of the main body vibrator and the resonant frequency of the insert tip needle, it is necessary to shave off the main body of the main body vibrator, the side of the insert tip needle, or change the length. was extremely complicated. A first object of the present invention is to provide a resonant frequency adjustment method that can very easily substantially match the resonant frequency of the main body vibrator of a vibratory processing machine and the resonant frequency of a needle-like processing tool. . A second object of the present invention is to provide a vibrating processing machine that can be driven at low voltage and generates less heat. An embodiment of the present invention will be described in detail below. In FIG. 1, 1 is a main body vibrator, and an electrostrictive transducer is used as an example. That is, the main body vibrator 1 has electrodes 4 and 5 disposed between and on the left side of two electrostrictive vibrators 2 and 3 made of barium titanate porcelain, etc., which have a large electrostrictive effect. Position the metal vibrating member 6 to the right of the electrode 5, the metal vibrating member 7 to the left of the electrode 5, and tighten the tightening screw 8.
This is a bolt-tight lunge-type vibrator. Reference numeral 9 denotes an insulating pipe, which prevents the electrodes 4, 5 and the tightening screw 8 from coming into contact with each other. In this embodiment, the main body vibrator 1 is a bimorph vibrator using electrostrictive vibrators 2 and 3 that perform thickness longitudinal vibration. The metal vibrating members 6 and 7 are made of stainless steel, duralumin, or the like. The tightening screw 8 has a water supply channel 8a provided at its axis, and a connecting portion 8b for connecting a water pipe at its left end. The metal member 6 is provided with a water supply channel 6a at its axis,
A tightening female threaded portion 6b is formed at the left end of the water supply channel 6a, and a mounting female threaded portion 6c is formed at the right end. Reference numeral 6d denotes a fixed collar portion for fixing the main body vibrator 1, and a plurality of female fixing screw portions are formed on the outer periphery. Reference numeral 10 denotes an insert tip needle which is a needle-like processing tool, and includes a mounting part 10a that is screwed into the female mounting thread part 6c of the metal member 6, a needle receiving part 10b that is press-fitted into this mounting part, and a needle receiving part 10b that is press-fitted into this mounting part. It is composed of a fixed needle portion 10c. A water supply channel 10d is formed in the center of the attachment portion 10a, and two water supply channels 10e are formed in the needle receiving portion 10b in communication with this water channel 10d. The water supply channel 10e opens close to the needle portion 10c. The needle portion 10c extends linearly by a length l from its fixed end, and is bent at an angle θ at the position of this linear length l. This main body vibrator 1 and insert tip needle 1
0 is fixed to the case 11 as shown in the second diagram,
The electrodes 4 and 5 are connected to a vibrator drive circuit (not shown), and the water pipe 12 is connected to the connection part 8b. Then, as shown in the third diagram, the root canal 14 of the tooth 13 is
The needle part 10c of the insert tip needle 10 is inserted inside and vibrated, and at the same time water is supplied by the water pipe 12.
A cleaning liquid is sent to clean the inside of the root canal 14.
In this embodiment, the main body vibrator 1 vibrates at approximately 23.7 KHz, and the resonant frequency f 0 of the insert tip needle 10 can be adjusted as shown in the table below by changing the linear length l from the fixed end and the bending angle θ. I was able to change it to .

【表】 インサートチツプ針10の針部10cは根元の
直径約0.8mm、先端の直径約0.4mmで約28mmの長さ
であり、容易に屈曲可能である。そしてインサー
トチツプ針10の屈曲位置、屈曲角度を変更する
ことにより上表のように共振周波数を調整できる
ため、インサートチツプ針10の共振周波数を本
体振動子1の共振周波数と容易に略一致させるこ
とができる。このようにして本体振動子1の共振
周波数とインサートチツプ針10の共振周波数と
を容易に略一致させることができるため、本体振
動子1の駆動回路は低電力で駆動でき、ケース1
1に内蔵される電池(図示せず。)によつて駆動
することも可能となる。また発熱の問題もなくな
る。 なお本実施例では針状加工具としてインサート
チツプ針を用いた振動式洗浄機の例を示したが、
針状やすりや針状ドリルを用いることにより例え
ば小径パイプの内面を研磨したりすることにも適
用できる。 また本体振動子はバイモルフのランジユバン形
振動子に限られず、またPZT、チタン酸ジルコン
酸鉛、ロツシエル鉛などを用いることもできる。 以上述べたように本発明によれば、針状加工具
の固定端からの直線長さ、屈曲角度とを調整する
ことにより極めて容易にその共振周波数を調整す
ることができる。このため低電力で駆動でき、発
熱の問題のない振動式加工機が可能となる。
[Table] The needle portion 10c of the insert tip needle 10 has a base diameter of approximately 0.8 mm, a tip diameter of approximately 0.4 mm, and a length of approximately 28 mm, and is easily bendable. By changing the bending position and bending angle of the insert tip 10, the resonance frequency can be adjusted as shown in the table above, so the resonance frequency of the insert tip 10 can be easily made to substantially match the resonance frequency of the main body vibrator 1. Can be done. In this way, the resonant frequency of the main body vibrator 1 and the resonant frequency of the insert tip needle 10 can be easily made substantially equal to each other, so that the drive circuit of the main body vibrator 1 can be driven with low power, and the case 1
It can also be driven by a battery (not shown) built into 1. It also eliminates the problem of heat generation. In addition, in this example, an example of a vibrating cleaning machine using an insert tip needle as a needle-like processing tool was shown.
By using a needle file or a needle drill, it can also be applied to, for example, polishing the inner surface of a small diameter pipe. Further, the main body resonator is not limited to a bimorph Languevin type resonator, and PZT, lead zirconate titanate, Rothsiel lead, etc. can also be used. As described above, according to the present invention, the resonance frequency can be adjusted very easily by adjusting the straight line length from the fixed end of the needle-like processing tool and the bending angle. This makes it possible to create a vibrating processing machine that can be driven with low power and has no heat generation problem.

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

図面は本発明の一実施例を示し、第1図は本体
振動子、インサートチツプ針の拡大断面図、第2
図は一部省略正面図、第3図は使用状態を示す要
部拡大図である。 1……本体振動子、10……インサートチツプ
針、10c……針部、l……固定端からの直線長
さ、θ……屈曲角度。
The drawings show one embodiment of the present invention, and FIG. 1 is an enlarged sectional view of the main body vibrator and the insert tip needle, and FIG.
The figure is a partially omitted front view, and FIG. 3 is an enlarged view of main parts showing the state of use. 1... Main body vibrator, 10... Insert tip needle, 10c... Needle portion, l... Straight line length from the fixed end, θ... Bending angle.

Claims (1)

【特許請求の範囲】 1 本体振動子と、この本体振動子に連結されて
振動駆動される針状加工具とから構成される振動
式加工装置において、 上記針状加工具の固定端からの直線長さlとこ
の直線長さlの位置における屈曲角度θとを調整
することにより、上記針状加工具の共振周波数を
調整するようにしたことを特徴とする振動式加工
機における針状加工具の共振周波数調整法。
[Claims] 1. In a vibratory processing device comprising a main body vibrator and a needle-like processing tool connected to the main body vibrator and driven by vibration, a straight line from a fixed end of the needle-like processing tool A needle-like processing tool for a vibratory processing machine, characterized in that the resonant frequency of the needle-like processing tool is adjusted by adjusting the length l and the bending angle θ at the position of the linear length l. resonant frequency adjustment method.
JP58131742A 1983-07-19 1983-07-19 Adjustment of resonance frequency of needle like processing tool in vibration type processing machine Granted JPS6021749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58131742A JPS6021749A (en) 1983-07-19 1983-07-19 Adjustment of resonance frequency of needle like processing tool in vibration type processing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58131742A JPS6021749A (en) 1983-07-19 1983-07-19 Adjustment of resonance frequency of needle like processing tool in vibration type processing machine

Publications (2)

Publication Number Publication Date
JPS6021749A JPS6021749A (en) 1985-02-04
JPS6244497B2 true JPS6244497B2 (en) 1987-09-21

Family

ID=15065126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58131742A Granted JPS6021749A (en) 1983-07-19 1983-07-19 Adjustment of resonance frequency of needle like processing tool in vibration type processing machine

Country Status (1)

Country Link
JP (1) JPS6021749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008513139A (en) * 2004-09-21 2008-05-01 ディスカス デンタル インプレッションズ インコーポレーテッド Dental equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6221312U (en) * 1985-07-25 1987-02-09

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4857590A (en) * 1971-09-14 1973-08-13
JPS4917090A (en) * 1972-04-21 1974-02-15
JPS51136387A (en) * 1975-03-05 1976-11-25 Cavitron Corp Device for attracting nerve tissue utilizing ultrasonic wave and method thereof
JPS55167070A (en) * 1979-06-14 1980-12-26 Kontorakuto Systems Asoshieits Ultrasonic probe
JPS5714341A (en) * 1980-06-30 1982-01-25 Maachin Hawaado Holder for unmyelinated dental instrument

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6015536Y2 (en) * 1980-04-10 1985-05-16 長田電機工業株式会社 Ultrasonic tartar removal handpiece
JPS5774020U (en) * 1980-10-24 1982-05-07
JPS60884Y2 (en) * 1980-11-27 1985-01-11 長田電機工業株式会社 Switch mechanism of handpiece for ultrasonic tartar removal
JPS57170710U (en) * 1981-04-23 1982-10-27

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4857590A (en) * 1971-09-14 1973-08-13
JPS4917090A (en) * 1972-04-21 1974-02-15
JPS51136387A (en) * 1975-03-05 1976-11-25 Cavitron Corp Device for attracting nerve tissue utilizing ultrasonic wave and method thereof
JPS55167070A (en) * 1979-06-14 1980-12-26 Kontorakuto Systems Asoshieits Ultrasonic probe
JPS5714341A (en) * 1980-06-30 1982-01-25 Maachin Hawaado Holder for unmyelinated dental instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008513139A (en) * 2004-09-21 2008-05-01 ディスカス デンタル インプレッションズ インコーポレーテッド Dental equipment

Also Published As

Publication number Publication date
JPS6021749A (en) 1985-02-04

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