JPS6133932Y2 - - Google Patents
Info
- Publication number
- JPS6133932Y2 JPS6133932Y2 JP1982144748U JP14474882U JPS6133932Y2 JP S6133932 Y2 JPS6133932 Y2 JP S6133932Y2 JP 1982144748 U JP1982144748 U JP 1982144748U JP 14474882 U JP14474882 U JP 14474882U JP S6133932 Y2 JPS6133932 Y2 JP S6133932Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- injection port
- injection pipe
- water injection
- cutting tool
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 33
- 239000007924 injection Substances 0.000 claims description 33
- 238000001816 cooling Methods 0.000 claims description 5
- 210000003128 head Anatomy 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、内装した注水管の噴射口をヘツド部
の近傍に位置させて、噴射口から噴射する水で切
削具及び被切削部位を冷却しながら被切削部位を
切削する歯科用ハンドピースに関するものであ
る。[Detailed description of the invention] (Field of industrial application) This invention is based on the idea that the injection port of the internal water injection pipe is located near the head part, and the water sprayed from the injection port cools the cutting tool and the part to be cut. This invention relates to a dental handpiece that cuts a site to be cut.
（従来例の構成とその問題点）
第１図は、従来のハンドピースの構成を示すも
ので、１は握手ケース、２は握手ケース１の先端
に挿着するヘツドケースで、このヘツドケース２
の先端部には切削具（図示しない）を着脱する回
転軸（図示しない）が内蔵されている。３は先端
部が握手ケース１に挿着したヘツドケース２と並
行するように握手ケース１の先端に突設され、後
端部が握手ケース１の後端部外周壁面上に突設さ
れ、且つ、中間部が握手ケース１に内設された注
水管で、この注水管３の先端の噴射口４はチヤツ
クに止された切削具の先端部に向いており、
又、注水管３の後端は水供給源（図示しない）に
接続される。(Conventional configuration and its problems) Figure 1 shows the configuration of a conventional handpiece. 1 is a handshake case, 2 is a head case that is inserted into the tip of the handshake case 1, and this head case 2
A rotary shaft (not shown) for attaching and detaching a cutting tool (not shown) is built into the tip. 3 has a distal end protruding from the distal end of the handshake case 1 so as to be parallel to the head case 2 inserted into the handshake case 1, and a rear end protruding from the outer peripheral wall surface of the rear end of the handshake case 1, and The middle part is a water injection pipe installed inside the handshake case 1, and the injection port 4 at the tip of this water injection pipe 3 is directed toward the tip of the cutting tool stopped in the chuck.
Further, the rear end of the water injection pipe 3 is connected to a water supply source (not shown).
このように構成された従来例では、チヤツクに
止された切削具によつて被切削部、例えば口腔
内の歯を切削するときには、噴射口４から水を噴
射して、歯と切削具とを冷却している。ところ
が、噴射口４の口径と注水管３の内径とが同一で
ある（第２図参照）ため、噴射口４から噴射され
る水滴の径が大きく、且つ、水滴の噴射範囲が噴
射口４の近傍から大きく拡がつてしまい、歯と切
削具とに十分に水が供給できなくなつて、歯と切
削具との冷却効率が低い欠点があつた。 In the conventional example configured in this way, when cutting a part to be cut, for example, a tooth in the oral cavity, with a cutting tool fixed to the chuck, water is jetted from the injection port 4 to connect the tooth and the cutting tool. It's cooling down. However, since the diameter of the injection port 4 and the inner diameter of the water injection pipe 3 are the same (see Fig. 2), the diameter of the water droplets injected from the injection port 4 is large, and the spray range of the water droplets is larger than that of the injection port 4. The problem is that the cooling efficiency of the teeth and cutting tool is low because the water spreads out from the vicinity, making it impossible to supply enough water to the teeth and the cutting tool.
（考案の目的）
本考案の目的は、水滴の径が小さく、水滴の噴
射範囲が狭くなるような噴射口を有するハンドピ
ースの注水管を提供することにより、前記従来例
の欠点を解消するものである。(Purpose of the invention) The purpose of the invention is to eliminate the drawbacks of the conventional example by providing a water injection pipe for a handpiece having an injection port with a small diameter of water droplets and a narrow spray range of water droplets. It is.
（考案の構成）
本考案は、噴射口の口径を注水管の内径よりも
小さくしたものである。(Structure of the invention) In the invention, the diameter of the injection port is smaller than the inner diameter of the water injection pipe.
（実施例の説明）
第３図は、本考案の一実施例の構成を示すもの
で、第１図及び第２図の符号と同一符号のものは
同一部分を示しており、又、５は口径を注水管３
の内径よりも小さくした噴射口である。(Description of Embodiment) FIG. 3 shows the configuration of an embodiment of the present invention, in which the same reference numerals as those in FIGS. 1 and 2 indicate the same parts, and 5 indicates the same parts. Water injection pipe 3
The injection port is smaller than the inner diameter of the
このように構成されて本実施例では、噴射口５
を流れる水の圧力が注水管３を流れる水の圧力よ
りも高くなると共に、噴射口５を流れる水の速度
が注水管３を流れる水の速度よりも早いので、噴
射口５から噴射される水滴の径は小さくなり、
又、水滴の噴射範囲も狭くなる。 With this configuration, in this embodiment, the injection port 5
The pressure of the water flowing through the water injection port 5 becomes higher than the pressure of the water flowing through the water injection pipe 3, and the speed of the water flowing through the injection port 5 is faster than that of the water flowing through the water injection pipe 3. The diameter of
Furthermore, the spray range of water droplets is also narrowed.
尚、本考案は、切削具を使わずに被切削部を切
削するレーザハンドピースに被切削部冷却用とし
て具備した注水管にも使用できる。 Note that the present invention can also be used in a water injection pipe provided for cooling the cut part of a laser handpiece that cuts the cut part without using a cutting tool.
（考案の効果）
以上説明したように、本考案によれば、噴射口
から噴射される水滴の径を小さくできると共に、
水滴の噴射範囲も狭くできるので、被切削部及び
切削具への水の供給が多くなつて、被切削部及び
切削具の冷却効率が高くなる利点がある。(Effects of the invention) As explained above, according to the invention, it is possible to reduce the diameter of water droplets jetted from the nozzle, and
Since the spray range of water droplets can also be narrowed, there is an advantage that more water is supplied to the cut part and the cutting tool, and the cooling efficiency of the cut part and the cutting tool is increased.
第１図は従来のハンドピースの正面図、第２図
は従来のハンドピースに具備された注水管の噴射
口の断面図、第３図は本考案の一実施例の断面図
である。
１……握手ケース、２……ヘツドケース、３…
…注水管、４，５……噴射口。
FIG. 1 is a front view of a conventional handpiece, FIG. 2 is a sectional view of a water injection port provided in the conventional handpiece, and FIG. 3 is a sectional view of an embodiment of the present invention. 1...handshake case, 2...head case, 3...
...Water injection pipe, 4, 5...Injection port.
Claims (1)
置させて、前記噴射口から噴射する水で切削具及
び被切削部位を冷却しながら前記被切削部位を切
削する歯科用ハンドピースにおいて、口径が前記
注水管の内径よりも小さい前記噴射口を前記注水
管の先端に１つ設けたことを特徴とする歯科用ハ
ンドピース。 A dental handpiece for cutting a cut part while cooling the cutting tool and the cut part with water sprayed from the water injection port by locating an injection port of an internal water injection pipe in the vicinity of the head part. A dental handpiece characterized in that one injection port smaller than the inner diameter of the water injection pipe is provided at the tip of the water injection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14474882U JPS5948608U (en) | 1982-09-27 | 1982-09-27 | dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14474882U JPS5948608U (en) | 1982-09-27 | 1982-09-27 | dental handpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5948608U JPS5948608U (en) | 1984-03-31 |
| JPS6133932Y2 true JPS6133932Y2 (en) | 1986-10-03 |
Family
ID=30322700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14474882U Granted JPS5948608U (en) | 1982-09-27 | 1982-09-27 | dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5948608U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4862292A (en) * | 1971-11-17 | 1973-08-30 |
-
1982
- 1982-09-27 JP JP14474882U patent/JPS5948608U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4862292A (en) * | 1971-11-17 | 1973-08-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5948608U (en) | 1984-03-31 |
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