JPS6122575Y2 - - Google Patents
Info
- Publication number
- JPS6122575Y2 JPS6122575Y2 JP1983012179U JP1217983U JPS6122575Y2 JP S6122575 Y2 JPS6122575 Y2 JP S6122575Y2 JP 1983012179 U JP1983012179 U JP 1983012179U JP 1217983 U JP1217983 U JP 1217983U JP S6122575 Y2 JPS6122575 Y2 JP S6122575Y2
- Authority
- JP
- Japan
- Prior art keywords
- handpiece
- micromotor
- dental handpiece
- shaft
- neck
- 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
Links
- 230000007246 mechanism Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 2
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
【考案の詳細な説明】
本考案はマイクロモータ等に結合して用いられ
る歯科用ハンドピースに関し、特に、減速装置を
内蔵した歯科用ハンドピースの構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dental handpiece that is used in conjunction with a micromotor, and more particularly to the structure of a dental handpiece that incorporates a speed reduction device.
従来、マイクロモータ等に結合して用いられる
歯科用ハンドピースは、ハンドピース中を貫通す
る複数の連接軸を内蔵し、これらの連接軸を介し
てポイントやバーといつた切削具を駆動する。 Conventionally, a dental handpiece that is used in combination with a micromotor or the like has a plurality of connecting shafts that pass through the handpiece, and a cutting tool such as a point or a bar is driven through these connecting shafts.
ところで、このような歯科用ハンドピースで治
療を行なう場合、マイクロモータは割合に高速回
転であるので、使用するバーによつては回転速度
が高過ぎ、かえつて使いにくい場合がある。この
ため、従来では、マイクロモータに減速機構を組
込み、減速機構を介して切削具を駆動することが
行なわれているけれども、このような構造では、
用途に応じて複数のマイクロモータを使分けねば
ならず、マイクロモータの複数設置による配線や
切換器等の複雑化をまねいている。 By the way, when performing treatment with such a dental handpiece, the micromotor rotates at a relatively high speed, so depending on the bar used, the rotation speed may be too high, making it difficult to use. For this reason, in the past, a reduction mechanism was built into the micromotor and the cutting tool was driven through the reduction mechanism, but with such a structure,
A plurality of micromotors must be used depending on the application, and the installation of a plurality of micromotors complicates wiring, switching devices, etc.
本考案は、以上に述べたような従来の不便さを
考慮して、減速機構を内蔵したハンドピースを提
案するものである。即ち、従来では不可能視され
ていたこのような歯科用ハンドピースによれば、
適した切削具を取付けたハンドピースを、マイク
ロモータに結合するだけでよいから、一基のマイ
クロモータの設置により多用途に使用することが
できる。 The present invention proposes a handpiece with a built-in speed reduction mechanism in consideration of the conventional inconveniences as described above. In other words, with such a dental handpiece, which was considered impossible in the past,
A single micromotor installation can be used for multiple purposes, since it is only necessary to couple the handpiece with a suitable cutting tool to the micromotor.
以下、図面について本考案による歯科用ハンド
ピースの実施例の詳細を説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, embodiments of the dental handpiece according to the present invention will be described in detail with reference to the drawings.
本考案による歯科用ハンドピースＡは、第１図
に示すように仮想線で示したマイクロモータＢに
結合され、先端のチヤツク１にポイントやバー等
の切削工具を取付けて使用する。 The dental handpiece A according to the present invention is connected to a micromotor B shown in phantom lines as shown in FIG. 1, and is used by attaching a cutting tool such as a point or bar to a chuck 1 at the tip.
同歯科用ハンドピースＡの内部は第２図示のよ
うに構成されている。即ち、歯科用ハンドピース
Ａは基部２ａをマイクロモータＢに結合されるハ
ンドピース本体２と、前記チヤツク１に回転結合
される連接軸４を内蔵したハンドピース首部５と
を有し、ねじ部６で互いに結合されるハンドピー
ス本体２とハンドピース首部５との結合部中に
は、円筒形カートリツヂ７を落込める取付孔８が
形成してある。円筒形カートリツヂ７は互いにね
じ部９で結合されていて、上記結合部中にそれぞ
れ位置する大径筒１０と小径筒１１とから構成さ
れ、これらの大径筒１０及び小径筒１１の内部の
軸受１２，１３には入力軸１４及び出力軸１５が
それぞれ回転可能に軸支してある。入力軸１４の
先端にはばね１６で押されたクラツチ筒１７が長
さ方向に摺動可能に支持してあり、同クラツチ筒
１７の先端に形成した爪クラツチ１８はマイクロ
モータＢの駆動軸ｂに接続される。前記出力軸１
５の一端には複数の遊星軸１９を植えられたデイ
スク２０が一体に形成され、他端には前記連接軸
４の従動側かさ歯車２２に噛合う駆動側かさ歯車
２３が固定される。また、入力軸１４の後端には
前記デイスク２０の内部の軸受２４で一端を回転
支持された太陽歯車２５が固定され、この太陽歯
車２５は前記遊星軸１９に回転可能に支持した遊
星歯車２６に噛合される。一方、前記円筒形カー
トリツヂ７の内部には前記遊星歯車２６に噛合う
リングギア２７が固定してある。 The interior of the dental handpiece A is constructed as shown in the second figure. That is, the dental handpiece A has a handpiece main body 2 whose base portion 2a is connected to a micromotor B, a handpiece neck portion 5 incorporating a connecting shaft 4 rotatably connected to the chuck 1, and a threaded portion 6. A mounting hole 8 into which a cylindrical cartridge 7 can be inserted is formed in the joint between the handpiece body 2 and the handpiece neck 5, which are joined to each other. The cylindrical cartridge 7 is connected to each other by a threaded portion 9, and is composed of a large diameter cylinder 10 and a small diameter cylinder 11 located respectively in the joint, and a bearing inside the large diameter cylinder 10 and small diameter cylinder 11. An input shaft 14 and an output shaft 15 are rotatably supported on the shafts 12 and 13, respectively. A clutch cylinder 17 pushed by a spring 16 is supported slidably in the length direction at the tip of the input shaft 14, and a pawl clutch 18 formed at the tip of the clutch cylinder 17 connects to the drive shaft b of the micromotor B. connected to. The output shaft 1
A disk 20 having a plurality of planetary shafts 19 is integrally formed at one end of the connecting shaft 5, and a driving bevel gear 23 meshing with a driven bevel gear 22 of the connecting shaft 4 is fixed to the other end. Further, a sun gear 25 whose one end is rotatably supported by a bearing 24 inside the disk 20 is fixed to the rear end of the input shaft 14, and this sun gear 25 is connected to a planetary gear 26 which is rotatably supported by the planetary shaft 19. is engaged with. On the other hand, a ring gear 27 that meshes with the planetary gear 26 is fixed inside the cylindrical cartridge 7.
本考案による歯科用ハンドピースは、以上に述
べたような構造であるから、入力軸１４に伝えら
れた回転運動は太陽歯車２５、遊星歯車２６、リ
ングギヤ２７から構成される減速機構に伝えら
れ、減速した回転速度で出力軸１５が駆動される
ことになる。そして、同歯科用ハンドピースＡ
は、予め入力軸１４、出力軸１５、減速機構を組
込んだ円筒形カートリツヂ７を取付孔８中に落込
み、ハンドピース本体２とハンドピース首部５を
ねじ結合することにより組立てることができ、ま
た、内部機構が故障した場合には、ハンドピース
本体２とハンドピース首部５を分解するだけで、
内部機構を全て取出して修理を行うことができ
る。勿論、本考案の歯科用ハンドピースは減速機
構を内蔵しているので、通常のハンドピースと取
換えるだけで、同じくマイクロモータで低速駆動
を行なうことができる。さらにまた、円筒形カー
トリツヂ７は、ハンドピース本体２とハンドピー
ス首部５の結合部を利用して配置されているの
で、上記ハンドピース本体２の長さを結合に必要
な長さに設定するだけで良く、これによつてハン
ドピースの長手方向の長さが極端に長くなること
もなくなり、ハンドピースの大型化を防ぐことが
可能となる。 Since the dental handpiece according to the present invention has the structure described above, the rotational motion transmitted to the input shaft 14 is transmitted to the speed reduction mechanism composed of the sun gear 25, the planetary gear 26, and the ring gear 27. The output shaft 15 is driven at the reduced rotational speed. And the same dental handpiece A
can be assembled by dropping the cylindrical cartridge 7 in which the input shaft 14, output shaft 15, and deceleration mechanism are assembled into the mounting hole 8 in advance, and screwing together the handpiece body 2 and the handpiece neck 5. In addition, if the internal mechanism breaks down, simply disassemble the handpiece body 2 and handpiece neck 5.
All internal mechanisms can be removed and repaired. Of course, since the dental handpiece of the present invention has a built-in speed reduction mechanism, it can be driven at low speed by the same micromotor simply by replacing it with a normal handpiece. Furthermore, since the cylindrical cartridge 7 is arranged using the joint between the handpiece body 2 and the handpiece neck 5, the length of the handpiece body 2 can be simply set to the length required for the joint. As a result, the length of the hand piece in the longitudinal direction does not become extremely long, and it is possible to prevent the hand piece from increasing in size.
第１図は一部を破断して示す本考案による歯科
用ハンドピースの側面図、第２図は同歯科用ハン
ドピースの拡大断面図である。
Ａ……歯科用ハンドピース、Ｂ……マイクロモ
ータ、２……ハンドピース本体、５……ハンドピ
ース首部、７……円筒形カートリツヂ、１４……
入力軸、１５……出力軸、１９……遊星軸、２５
……太陽歯車、２６……遊星歯車、２７……リン
グギア。
FIG. 1 is a partially cutaway side view of a dental handpiece according to the present invention, and FIG. 2 is an enlarged sectional view of the dental handpiece. A...Dental handpiece, B...Micromotor, 2...Handpiece body, 5...Handpiece neck, 7...Cylindrical cartridge, 14...
Input shaft, 15... Output shaft, 19... Planetary axis, 25
...Sun gear, 26...Planetary gear, 27...Ring gear.
Claims (1)
ハンドピースにおいて、互いにねじ結合できる中
空のハンドピース本体とハンドピース首部の結合
部中に取付孔を形成し、複数の軸受を有しかつ入
力軸、出力軸、遊星減速歯車列を組込まれた円筒
形カートリツジを前記取付孔に落込んで、ハンド
ピース本体とハンドピース首部を結合したことを
特徴とする歯科用ハンドピース。 A dental handpiece that is used in connection with a micromotor etc. has a mounting hole formed in the joint between a hollow handpiece body and a handpiece neck that can be screwed to each other, and has a plurality of bearings and an input shaft and an output shaft. A dental handpiece characterized in that a cylindrical cartridge incorporating a shaft and a planetary reduction gear train is dropped into the attachment hole to connect the handpiece body and the handpiece neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1217983U JPS59119808U (en) | 1983-01-31 | 1983-01-31 | dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1217983U JPS59119808U (en) | 1983-01-31 | 1983-01-31 | dental handpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59119808U JPS59119808U (en) | 1984-08-13 |
| JPS6122575Y2 true JPS6122575Y2 (en) | 1986-07-07 |
Family
ID=30143583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1217983U Granted JPS59119808U (en) | 1983-01-31 | 1983-01-31 | dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59119808U (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8641715B2 (en) | 2002-05-31 | 2014-02-04 | Vidacare Corporation | Manual intraosseous device |
| EP3292821A1 (en) | 2002-05-31 | 2018-03-14 | Vidacare LLC | Apparatus and method to access bone marrow |
| US7811260B2 (en) | 2002-05-31 | 2010-10-12 | Vidacare Corporation | Apparatus and method to inject fluids into bone marrow and other target sites |
| US8668698B2 (en) | 2002-05-31 | 2014-03-11 | Vidacare Corporation | Assembly for coupling powered driver with intraosseous device |
| US7815642B2 (en) | 2004-01-26 | 2010-10-19 | Vidacare Corporation | Impact-driven intraosseous needle |
| US8998848B2 (en) | 2004-11-12 | 2015-04-07 | Vidacare LLC | Intraosseous device and methods for accessing bone marrow in the sternum and other target areas |
| US8944069B2 (en) | 2006-09-12 | 2015-02-03 | Vidacare Corporation | Assemblies for coupling intraosseous (IO) devices to powered drivers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53113191A (en) * | 1977-03-10 | 1978-10-03 | Micro Mega Sa | Slowwdown device for dental hand tool holder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722898Y2 (en) * | 1977-04-04 | 1982-05-18 |
-
1983
- 1983-01-31 JP JP1217983U patent/JPS59119808U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53113191A (en) * | 1977-03-10 | 1978-10-03 | Micro Mega Sa | Slowwdown device for dental hand tool holder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59119808U (en) | 1984-08-13 |
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