JPS60161027A - Threading device - Google Patents
Threading deviceInfo
- Publication number
- JPS60161027A JPS60161027A JP1793184A JP1793184A JPS60161027A JP S60161027 A JPS60161027 A JP S60161027A JP 1793184 A JP1793184 A JP 1793184A JP 1793184 A JP1793184 A JP 1793184A JP S60161027 A JPS60161027 A JP S60161027A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- thread
- central shaft
- disc
- wall 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1666—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the acetabulum
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
Abstract
Description
【発明の詳細な説明】 本発明はネジ切り装置に関するものである。[Detailed description of the invention] The present invention relates to a thread cutting device.
例えば、人の骨盤にネジ孔を穿設し、人工股関節を構成
するネジ込み型のソケットを螺入するには、ネジ孔とし
て、骨盤の所定の位置に正確な角度をもち、全周にわた
って均等なネジ溝を備えたものであることが要求される
。For example, in order to drill a screw hole in a person's pelvis and insert a screw-in socket that makes up an artificial hip joint, the screw hole must be placed at a predetermined position in the pelvis at a precise angle, and evenly distributed around the entire circumference. It is required to have a thread groove.
ところが、このようなネジ孔は第１図に示ず如く骨盤Ｋ
に予め下孔Ｓをあけておき、その開口部よりタップＴを
ネジ込めネジ孔を形成している。However, such a screw hole is inserted into the pelvis K as shown in Figure 1.
A pilot hole S is pre-drilled in the hole S, and a tap T is screwed into the opening to form a screw hole.
ところが、このようなネジ孔の穿設方法としては、上記
ソケットと同じピンチをもったタップＴを下孔Ｓにネジ
込むことによってネジ溝を設けている。However, as a method of drilling such a screw hole, a screw groove is provided by screwing a tap T having the same pinch as the socket described above into the prepared hole S.
この場合、タップＴのネジ込み方向を下孔の中心軸と正
確に一致させながらネジ溝を切ることが極めて困難であ
る。そのため、ネジ孔が所定方向に向かずネジ孔の最深
部にはネジ溝が切られていないところやネジ溝が切られ
ている場合でも全周にわたって均等に切られたネジ孔と
はなり難い。In this case, it is extremely difficult to cut a threaded groove while accurately aligning the threading direction of the tap T with the central axis of the prepared hole. Therefore, even if the threaded hole is not oriented in a predetermined direction and no threaded groove is cut in the deepest part of the threaded hole, or even if a threaded groove is cut, it is difficult to obtain a threaded hole that is cut evenly over the entire circumference.
その結果、上記ソケットを骨盤に螺入し、固定した場合
、固定性が悪く安定的にソケットを装着することが不可
能となり、良好な状態で人工股関節を骨盤に設置するこ
とが容易でなかった。As a result, when the socket was screwed into the pelvis and fixed, the fixation was poor and it was impossible to stably attach the socket, making it difficult to install the artificial hip joint in good condition in the pelvis. .
本発明は上記に鑑みて、予め所定の方向にあけられてい
る下孔に沿って正確にネジ切りを施すようにした装置を
もたらさんとするものであって以下、図によって具体的
に詳述する。第２図Ｇこおいて、１は中心軸で、この中
心軸１の先端には金属製の円板２が溶接、ネジ止め等の
手段でもって固定され該円板２の上面には複数１１＾１
のビン３が取り付けられている。また、中心軸１の上α
１１，１部には所定のピンチをもったネジｍ１ａが切っ
てあり、しかも、上記ピン３が取り付けられている円板
２と中心軸１の間には１、周辺に溝空間４を形成する如
くツバ５が配設されており、溝空間４には、上記中心軸
１を回転中心として回転自在で切込み６ａをもったガイ
ドリング６が嵌装されている。In view of the above, it is an object of the present invention to provide a device for accurately threading along a pilot hole previously drilled in a predetermined direction. Describe. In FIG. 2G, 1 is a central axis, and a metal disk 2 is fixed to the tip of the central axis 1 by means of welding, screwing, etc., and a plurality of 11 ^1
Bin 3 is attached. Also, the upper α of the central axis 1
11. A screw m1a with a predetermined pinch is cut in part 1, and a groove space 4 is formed around the central shaft 1 and the disk 2 to which the pin 3 is attached. A collar 5 is disposed, and a guide ring 6 is fitted into the groove space 4 and is rotatable about the central axis 1 and has a notch 6a.
さらに、上記中心軸ｌを内部に挿入する如く、外筒７が
配設され、この外筒７の上端には外周に１個ないしは複
数個の切刃８を備えるとともに内側に移動ネジ９が溶接
等の手段でもって固定され、また、下端には、図示して
いないレンチでもって外筒７を回転させるべく六角ナン
ド状、四角形、小判型等のトルク印加部１０が形成しで
ある。Further, an outer cylinder 7 is arranged so that the central axis l is inserted therein, and the upper end of the outer cylinder 7 is provided with one or more cutting blades 8 on the outer periphery, and a movable screw 9 is welded inside. A torque applying portion 10 having a hexagonal NAND shape, a square shape, an oval shape, etc. is formed at the lower end so that the outer tube 7 can be rotated using a wrench (not shown).
なお、上記中心軸１の下端には、使用時に身体でもって
押しつける押圧部１１を具備している。The lower end of the central shaft 1 is provided with a pressing portion 11 that is pressed with the body during use.
叙上の如（構成された本発明に係るネジ切り装置を使用
した場合のネジ切り作動について説明すれば、第３図に
て示すように、例えば、骨盤Ｋに予めあけである下孔Ｓ
の最深部壁面に対し、先端のピン３を刺入し、かつ円板
２を上記壁に面当接させる。この場合、下孔Ｓの内径と
ガイドリング６の外径とが、はぼ同径であることがら、
ガイドリング６の円筒外面が下孔Ｓの内壁面に当接する
ことにより下孔Ｓの中心とネジ切り装置の回転中心とが
自ら一致する。その後、押圧部１１を身体にて、固定、
圧迫しつつ、ラチェットレンチ（不図示）をトルク印加
部１０に装着し、該レンチでもって外筒７を回転させる
ことにより、この外筒７に一体的に固定された移動ネジ
９の作用によって前進し切刃８によってネジ溝を掘削す
る。このようにネジ溝の掘削完了した後、外筒７を逆回
転されることによって切刃８を後退させ、該切刃８をネ
ジ孔から脱出させる。しかる後、ネジ切り装置全体を取
外して、ネジ切り作業を終了する。To explain the thread cutting operation when using the thread cutting device according to the present invention configured as described above, for example, as shown in FIG.
The pin 3 at the tip is inserted into the wall surface of the deepest part, and the disk 2 is brought into surface contact with the wall surface. In this case, since the inner diameter of the pilot hole S and the outer diameter of the guide ring 6 are approximately the same diameter,
When the cylindrical outer surface of the guide ring 6 comes into contact with the inner wall surface of the pilot hole S, the center of the pilot hole S and the rotation center of the thread cutting device coincide with each other. After that, the pressing part 11 is fixed on the body,
While applying pressure, attach a ratchet wrench (not shown) to the torque application unit 10 and use the wrench to rotate the outer cylinder 7, so that the outer cylinder 7 moves forward by the action of the moving screw 9 integrally fixed to the outer cylinder 7. The screw groove is excavated by the cutting blade 8. After the thread groove has been excavated in this manner, the cutting blade 8 is moved backward by rotating the outer cylinder 7 in the reverse direction, and the cutting blade 8 is caused to escape from the screw hole. After that, the entire thread cutting device is removed to complete the thread cutting work.
なお、上記ネジ切り作業時において、切刃８は、ガイド
リング６に設けられた切込み６ａの中にはまり込み、ガ
イドリング６とともに回転し、前進する。 以上のよう
に本発明によれば、先端に複数個のピンを備え、かつ上
端部外周にネジ溝が形成され中心軸と、この中心軸を回
転中心とし、上記ネジ溝と同じピンチをもった切刃を回
転させてネジ孔を掘削するようにしたものであることか
ら、所定位置に正確な方向に溝の深さが均等なネジ溝を
熟練の度合に拘わらず誰でも容易にかつ低トルクのもと
にネジ孔をあけることができる。Note that during the thread cutting operation, the cutting blade 8 fits into the notch 6a provided in the guide ring 6, rotates together with the guide ring 6, and moves forward. As described above, according to the present invention, a plurality of pins are provided at the tip, a threaded groove is formed on the outer periphery of the upper end, and a central axis is formed, and the central axis is the center of rotation, and the pin has the same pin as the threaded groove. Since the cutting blade is rotated to drill the screw hole, anyone can easily create screw grooves with uniform depth in the correct direction at a predetermined location and with low torque. You can drill a screw hole at the bottom.
なお、上記においては骨盤に対し人工股関節用ソケット
を装着するネジ孔をあげる場合を述べたが、これに限ら
ず、他の部材、例えば木工、美術品等に対する正確なる
ネジ孔の穿設などに広く使用できることは言うまでもな
い。Although the above example describes the case of drilling a screw hole for attaching an artificial hip joint socket to the pelvis, it is not limited to this, but can also be used to accurately drill screw holes for other parts, such as woodwork, works of art, etc. Needless to say, it can be used widely.
第１図は従来のネジ切り装置を用いてネジ孔を掘削して
いる状態を示す側面図、第２図は本発明に係るネジ切り
装置の一部破断面図、第３図は本発明によるネジ切り装
置を用いてネジ孔を掘削している様態を示す側面図であ
る。
■＝中心軸 ２：円板 ３：ピン
４：溝空間 ６：ガイドリング ７：外筒８：切刃 ９
：移動ネジ
〈FIG. 1 is a side view showing a state in which a screw hole is being drilled using a conventional thread cutting device, FIG. 2 is a partially cutaway cross-sectional view of the thread cutting device according to the present invention, and FIG. FIG. 3 is a side view showing a state in which a screw hole is being excavated using a screw cutting device. ■ = Central axis 2: Disc 3: Pin 4: Groove space 6: Guide ring 7: Outer cylinder 8: Cutting blade 9
:Movement screw〈
Claims (1)
形成された中心軸と、該中心軸を回転中心とし、上記ネ
ジ溝と同じピッチをもった切刃を回転自在に具備したこ
とを特徴とするネジ切り装置。A central shaft with a plurality of bottles at its tip and a thread groove formed on the outer periphery of the upper end, and a rotatably rotatable cutting blade having the same pitch as the thread groove with the center axis as the rotation center. A thread cutting device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1793184A JPS60161027A (en) | 1984-01-31 | 1984-01-31 | Threading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1793184A JPS60161027A (en) | 1984-01-31 | 1984-01-31 | Threading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60161027A true JPS60161027A (en) | 1985-08-22 |
| JPH0573526B2 JPH0573526B2 (en) | 1993-10-14 |
Family
ID=11957512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1793184A Granted JPS60161027A (en) | 1984-01-31 | 1984-01-31 | Threading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60161027A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728832U (en) * | 1980-07-25 | 1982-02-15 | ||
| JPS58821U (en) * | 1981-06-24 | 1983-01-06 | 株式会社日立製作所 | hand tapping device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58821B2 (en) * | 1977-03-16 | 1983-01-08 | 日本電子株式会社 | electronic microscope |
| JPS5439214A (en) * | 1978-03-24 | 1979-03-26 | Yano Giken Kk | Apparatus for preventing slipping off of union |
-
1984
- 1984-01-31 JP JP1793184A patent/JPS60161027A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5728832U (en) * | 1980-07-25 | 1982-02-15 | ||
| JPS58821U (en) * | 1981-06-24 | 1983-01-06 | 株式会社日立製作所 | hand tapping device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0573526B2 (en) | 1993-10-14 |
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