JPS6021745A - Blade replacing type knife - Google Patents
Blade replacing type knifeInfo
- Publication number
- JPS6021745A JPS6021745A JP58129550A JP12955083A JPS6021745A JP S6021745 A JPS6021745 A JP S6021745A JP 58129550 A JP58129550 A JP 58129550A JP 12955083 A JP12955083 A JP 12955083A JP S6021745 A JPS6021745 A JP S6021745A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- elongated hole
- narrow
- scalpel
- wide
- 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
Landscapes
- Surgical Instruments (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は手術用メスの改良に係るものであって、従来
品に比べて着脱が容易な替刃式メスを捉供することを目
的とする。従来の替刃式メスは図面の第１図に示すよう
に、刃体１は比較的幅の広い長孔部２と比較的幅の狭い
長孔部３とを有してお９、これら二個の長孔部２，３は
長さ方向に連続して設けられ、幅狭長孔部３は幅広長孔
部２の前に位置している。他方、柄４の頭部に設けられ
た刃体取付部５は角柱状に形成されておシ、該刃体取付
部５の縦幅は前記刃体ｌの幅広長孔部２の縦幅よシもや
や短い。また刃体取付部５０基部１１付近には前記刃体
１の幅広長孔部２の後端部１２と係合するための段部６
が設けられてお９、柄４の先端から段部６までの長さは
前記刃体１の幅狭長孔部３の先端から幅広長孔部２の後
端部１２までの長さよシもやや短い。さらに刃体取付部
５の上部と下部には前記刃体１の幅狭長孔部３の」二下
に存在する上縁部７と下縁部８とが通るための溝９がそ
れぞれ形成されており、該溝９の幅は刃体１の幅とほぼ
同じであり、かつその長さは幅狭長孔部３の長さよりも
やや長い。刃体取付部５の上部のうち溝９によって仕切
られた第１図中央側の部分１０の横幅は刃体取付部５の
基部１１の横幅よシもやや短い。刃体１を柄４の刃体取
付部５に取付けるには第１図で示す位置から刃体１を横
方向に移動させ、刃体１の幅広長孔部２の後端部１２が
刃体取付部５の側面に当接させさらに刃体１の幅狭長孔
部３が刃体取付部５の溝９の前に位置するまで刃体１を
移動させる。この位置において刃体１の後半部１３は湾
曲させられている。この位置から刃体１の幅狭長孔部３
の上縁部７と下縁部８が上下の溝９を通るように刃体１
を刃体取付部５の基部１１に向けて押し最終的に刃体１
の幅広長孔部２の後端部１２が刃体取伺部５に設けられ
た段部６を越えることによって刃体１は柄４の刃体取付
部５に取付けられる。この状態においても前述したよう
に刃体取付部５の基部１１の横幅は刃体取伺部５の上部
のうち溝９によって仕切られた残りの部分１０の横幅よ
りもやや広くかつ溝９の幅は刃体１の幅とほぼ同じなの
で刃体１の後半部１３はやや湾曲している（第３図の刃
体１と同じ状態）０湾曲し産刃体１の弾性によって刃体
１は刃体取付部５にしっかシと取付けられしかも刃体ｌ
の幅広長孔部２の後端部１２が刃体取付部５の段部６と
係合しているので刃体１を柄４の前方に引っ張っても刃
体１ははずれない。刃体１をはずすには刃体１の後半部
１３を大きく湾曲させ幅広長孔部２の後端部１２が段部
６を乗りこえてから刃体１を前方に引っ張らなければな
らない。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvement of a surgical scalpel, and an object of the present invention is to provide a replaceable blade type scalpel that is easier to attach and detach than conventional products. As shown in FIG. 1 of the drawings, a conventional replaceable blade scalpel has a blade 1 having a relatively wide elongated hole portion 2 and a relatively narrow elongated hole portion 3. The elongated hole portions 2 and 3 are provided continuously in the length direction, and the narrow elongated hole portion 3 is located in front of the wide elongated hole portion 2. On the other hand, the blade mounting portion 5 provided at the head of the handle 4 is formed into a prismatic shape, and the vertical width of the blade mounting portion 5 is equal to the vertical width of the wide elongated hole 2 of the blade l. Shi is also a little short. Further, near the base 11 of the blade mounting portion 50, there is a stepped portion 6 for engaging with the rear end portion 12 of the wide elongated hole portion 2 of the blade 1.
9, the length from the tip of the handle 4 to the step 6 is slightly longer than the length from the tip of the narrow elongated hole 3 of the blade 1 to the rear end 12 of the wide elongated hole 2. short. Furthermore, grooves 9 are formed in the upper and lower parts of the blade attachment part 5, respectively, through which the upper edge part 7 and the lower edge part 8, which are located two inches below the narrow and long hole part 3 of the blade body 1, pass. The width of the groove 9 is approximately the same as the width of the blade body 1, and its length is slightly longer than the length of the narrow elongated hole portion 3. The width of the upper part 10 of the blade mounting part 5 on the center side in FIG. To attach the blade 1 to the blade attachment part 5 of the handle 4, move the blade 1 laterally from the position shown in FIG. The blade 1 is brought into contact with the side surface of the attachment part 5 and further moved until the narrow elongated hole part 3 of the blade 1 is positioned in front of the groove 9 of the blade attachment part 5. In this position, the rear half 13 of the blade 1 is curved. From this position, the narrow and long hole part 3 of the blade body 1
Cut the blade 1 so that the upper edge 7 and lower edge 8 pass through the upper and lower grooves 9.
towards the base 11 of the blade attachment part 5 and finally the blade 1
The blade 1 is attached to the blade attachment part 5 of the handle 4 by the rear end 12 of the wide elongated hole 2 passing over the step 6 provided in the blade support part 5. Even in this state, as described above, the width of the base 11 of the blade mounting portion 5 is slightly wider than the width of the remaining portion 10 of the upper part of the blade mounting portion 5 partitioned by the groove 9, and the width of the groove 9 is almost the same as the width of the blade body 1, so the rear part 13 of the blade body 1 is slightly curved (the same state as the blade body 1 in Fig. 3). It is firmly attached to the body attachment part 5 and the blade l
Since the rear end 12 of the wide elongated hole 2 engages with the step 6 of the blade attachment part 5, the blade 1 will not come off even if the blade 1 is pulled forward of the handle 4. In order to remove the blade 1, the rear part 13 of the blade 1 must be greatly curved, the rear end 12 of the wide elongated hole part 2 must ride over the stepped part 6, and then the blade 1 must be pulled forward.
さて、上述した従来の替刃式メスは刃体１を着脱すると
きに大きな力を必要とするという欠点を持っている。な
ぜならば、刃体ｌの幅狭長孔部３の上縁部７と下縁部８
を刃体取付部５の上下の溝９に挿入するときに刃体１の
後端部１３は大きく湾曲しているので、刃体取付部５の
側面と刃体１の幅広長孔部２の後端部１２との摩擦はか
なり大きく、刃体ｌを強く押さないと取付けることがで
きないからである。寸た逆に刃体１を取シはずすそこで
この発明は従来品よりも刃体１の着脱が容易なメスを提
供することを目的とする。Now, the above-mentioned conventional replaceable blade type scalpel has a drawback in that a large force is required when attaching and detaching the blade body 1. This is because the upper edge 7 and lower edge 8 of the narrow and long hole 3 of the blade l.
When inserting the blade into the upper and lower grooves 9 of the blade mounting part 5, the rear end 13 of the blade 1 is greatly curved. This is because the friction with the rear end portion 12 is quite large, and the blade l cannot be attached unless it is strongly pushed. On the other hand, the blade body 1 has to be removed. Therefore, an object of the present invention is to provide a scalpel in which the blade body 1 can be attached and detached more easily than conventional products.
次にこの発明の構成を図面に示す実施例にしたがって説
明する。図面中第２、特許請求の範囲第２項記載の発明
の実施例である。第１図に示す従来例の刃体取付部５の
後半部を斜めに削り取った点において異なる。Next, the structure of the present invention will be explained according to embodiments shown in the drawings. The second figure in the drawings is an embodiment of the invention described in claim 2. This differs from the conventional example shown in FIG. 1 in that the rear half of the blade mounting portion 5 is obliquely shaved off.
メスは柄４と、柄４の刃体取付部５に着脱自在に取付け
うる刃体１とから成る。刃体１は比較的幅の広い長孔部
２と比較的幅の狭い長孔部３とを有しておシ、これら二
個の長孔部２，３は長さ方向に連続して設けられ、幅狭
長孔部３は幅広長孔部２の前に位置している。他方柄４
の刃体取付部５の側面には前記刃体１の幅広長孔部２に
入る大きさの突部１４が設けられている。該突部１４の
る上縁部７と下縁部８とが通過する溝９がそれぞれ形成
されている。この溝９０幅は刃体１の幅と槽
はぼ同じである。刃体取付部５のうち突部１４から後方
にかけて徐々に隆起するように斜面１５が取付部５の基
部１１の厚みＢは刃体取付部５の前部の厚みＡよりもや
や厚い。また刃体工の幅は溝９の幅とほとんど同じなの
で刃体１を刃体取付部５に取付けたときに刃体１の後半
部は湾曲する。The scalpel consists of a handle 4 and a blade 1 that can be detachably attached to a blade attachment part 5 of the handle 4. The blade body 1 has a relatively wide elongated hole portion 2 and a relatively narrow elongated hole portion 3, and these two elongated hole portions 2 and 3 are provided continuously in the length direction. The narrow elongated hole portion 3 is located in front of the wide elongated hole portion 2. Other pattern 4
A protrusion 14 of a size that fits into the wide elongated hole 2 of the blade 1 is provided on the side surface of the blade mounting portion 5 . Grooves 9 are formed through which the upper edge 7 and lower edge 8, on which the protrusion 14 rests, pass. The width of this groove 90 is approximately the same as the width of the blade body 1. The thickness B of the base 11 of the blade attachment part 5 is slightly thicker than the thickness A of the front part of the blade attachment part 5, so that the slope 15 gradually rises from the protrusion 14 toward the rear. Further, since the width of the blade body is almost the same as the width of the groove 9, the rear half of the blade body 1 is curved when the blade body 1 is attached to the blade attachment part 5.
さらに刃体１の幅広長孔部２の後端部１２が段部６と係
合する。したがって刃体１は上下、左右、前後のいずれ
も微動だにしないようにかたく取付けられる。Further, the rear end portion 12 of the wide elongated hole portion 2 of the blade body 1 engages with the stepped portion 6. Therefore, the blade body 1 is firmly attached so that it does not move even slightly in the vertical, horizontal, and front/back directions.
従来品では刃体１を取付けるときに刃体１の幅広長孔部
２の後端部１２と刃体取付部５の側面との摩擦が大きく
刃体１を押し込みにくがった。ところがこの発明では刃
体１の幅広長孔部２に刃体取具部５の突部１４が入るよ
うに合わせて、それから幅狭長孔部３の上縁部７と下縁
部８が溝９を通るように刃体１を押し込み、幅広長孔部
２の後端部１２が段部６を乗りこえることによって刃体
１は刃体取付部５に取付けられる。この際に、幅広長孔
部２に突部工４を合わせたときに刃体ｌの後半部１３は
ほとんど湾曲しておらず、また刃体１を押し込むときも
、幅広長孔部２の後端部１２が斜面１５を登るにつれて
刃体１の後半部１３は徐々に湾曲するので従来品に比べ
て摩擦は小さくの発明の実施例であって、前記実施例の
段部６を設けないものである。段部６は刃体１が前方に
抜けないようにするためのものであるが、段部６を設け
ずに斜面６のみでも刃体ｌは湾曲していることによって
刃体取付部５にかたく取付けられる。In the conventional product, when attaching the blade 1, the friction between the rear end 12 of the wide elongated hole 2 of the blade 1 and the side surface of the blade attachment part 5 was large, making it difficult to push the blade 1 in. However, in this invention, the protrusion 14 of the blade mounting part 5 is fitted into the wide elongated hole 2 of the blade 1, and then the upper edge 7 and lower edge 8 of the narrow elongated hole 3 are fitted into the groove 9. The blade 1 is attached to the blade mounting portion 5 by pushing the blade 1 through the blade 1 so that the rear end 12 of the wide elongated hole portion 2 rides over the stepped portion 6. At this time, when the protruding part 4 is aligned with the wide elongated hole 2, the rear half 13 of the blade l is hardly curved, and when the blade 1 is pushed in, the rear part 13 of the blade l is not curved. This is an embodiment of the invention in which the rear part 13 of the blade body 1 gradually curves as the end part 12 climbs the slope 15, so the friction is smaller than that of the conventional product, and the stepped part 6 of the previous embodiment is not provided. It is. The stepped portion 6 is to prevent the blade 1 from coming off forward, but even if the stepped portion 6 is not provided and only the slope 6 is provided, the blade l is curved and will not stick tightly to the blade mounting portion 5. Installed.
図面中箱１図は従来の替刃式メスの斜視図、第２図はこ
の発明の第１の実施例のメスの斜視図、スの一部正面図
である。
ｌ・・・刃体、２・・・幅広長孔部、３・・・幅狭長孔
部、４・−・柄、５・・・刃体取付部、６・・・段部、
９・・・溝、１４・・・突部、１５・・・斜面。
特許出願人
フェザ−安全剃刀株式会社
代理人弁理士
池端亨−Figure 1 of the box in the drawings is a perspective view of a conventional replaceable blade type scalpel, and Figure 2 is a perspective view of a scalpel according to the first embodiment of the present invention, and a partial front view of the box. l...Blade body, 2...Wide elongated hole portion, 3...Narrow elongated hole portion, 4...Handle, 5...Blade body mounting portion, 6...Stepped portion,
9...Groove, 14...Protrusion, 15...Slope. Patent applicant Feather - Safety Razor Co., Ltd. Patent attorney Toru Ikebata -
Claims (2)
刃体とから成るメスにおいて、刃体には比較的幅の広い
長孔部と比較的幅の狭い長孔部とが長さ方向に連続して
設けられてお９、幅狭長孔部は幅広長孔部の前に位置し
ておシ、他方柄の刃体取付部側面には前記刃体の幅広長
孔部に入る大きさの突部が設けられ、該突部の上部と下
部には前記幅狭長孔部の上下に存在する上縁部と下縁部
とが通過する溝が形成されておシ、かつ該溝から連続す
る刃体取付部の突部がわ側面が後方へ行くにしたがって
徐々に隆起していることを特徴とするメス。(1) In a scalpel consisting of a handle and a blade that can be detachably attached to the blade attachment part of the handle, the blade has a relatively wide elongated hole and a relatively narrow elongated hole. The narrow elongated hole part is located in front of the wide elongated hole part, and the narrow elongated hole part is located in front of the wide elongated hole part. A protrusion of the same size is provided, and a groove is formed in the upper and lower parts of the protrusion, through which the upper and lower edges existing above and below the narrow and elongated hole pass, and the groove A scalpel characterized in that the side surface of the protruding part of the blade mounting part that is continuous from the top is gradually raised toward the rear.
体取付部の突部がわ側面の途中に落ち込み段部が設けら
れていることを特徴とする特許請求の範囲第１項記載の
メス。(2) The scalpel according to claim 1, characterized in that a depressed stepped portion is provided in the middle of the side surface of the protruding portion of the blade attachment portion that gradually protrudes toward the rear. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58129550A JPS6021745A (en) | 1983-07-18 | 1983-07-18 | Blade replacing type knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58129550A JPS6021745A (en) | 1983-07-18 | 1983-07-18 | Blade replacing type knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6021745A true JPS6021745A (en) | 1985-02-04 |
| JPS627857B2 JPS627857B2 (en) | 1987-02-19 |
Family
ID=15012276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58129550A Granted JPS6021745A (en) | 1983-07-18 | 1983-07-18 | Blade replacing type knife |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021745A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008518657A (en) * | 2004-10-29 | 2008-06-05 | メディパーパス・プライベイト・リミテッド | Surgical safety knife |
| WO2011108337A1 (en) * | 2010-03-04 | 2011-09-09 | フェザー安全剃刀株式会社 | Cutting tool |
| US8015712B2 (en) | 2004-10-29 | 2011-09-13 | Medipurpose Pte Ltd | Safety scalpel |
| JP5335988B2 (en) * | 2010-03-04 | 2013-11-06 | フェザー安全剃刀株式会社 | Knife |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129656U (en) * | 1974-08-23 | 1976-03-03 | ||
| JPS57154407U (en) * | 1981-03-24 | 1982-09-28 |
-
1983
- 1983-07-18 JP JP58129550A patent/JPS6021745A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129656U (en) * | 1974-08-23 | 1976-03-03 | ||
| JPS57154407U (en) * | 1981-03-24 | 1982-09-28 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008518657A (en) * | 2004-10-29 | 2008-06-05 | メディパーパス・プライベイト・リミテッド | Surgical safety knife |
| US8015712B2 (en) | 2004-10-29 | 2011-09-13 | Medipurpose Pte Ltd | Safety scalpel |
| WO2011108337A1 (en) * | 2010-03-04 | 2011-09-09 | フェザー安全剃刀株式会社 | Cutting tool |
| WO2011108099A1 (en) * | 2010-03-04 | 2011-09-09 | フェザー安全剃刀株式会社 | Cutting tool |
| JP5335988B2 (en) * | 2010-03-04 | 2013-11-06 | フェザー安全剃刀株式会社 | Knife |
| US8898910B2 (en) | 2010-03-04 | 2014-12-02 | Feather Safety Razor Co., Ltd. | Cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS627857B2 (en) | 1987-02-19 |
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