JPH0423220Y2 - - Google Patents
Info
- Publication number
- JPH0423220Y2 JPH0423220Y2 JP1985001774U JP177485U JPH0423220Y2 JP H0423220 Y2 JPH0423220 Y2 JP H0423220Y2 JP 1985001774 U JP1985001774 U JP 1985001774U JP 177485 U JP177485 U JP 177485U JP H0423220 Y2 JPH0423220 Y2 JP H0423220Y2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- endoscope
- attached
- strength
- hole
- 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
- 239000000853 adhesive Substances 0.000 claims description 63
- 230000001070 adhesive effect Effects 0.000 claims description 63
- 229920006332 epoxy adhesive Polymers 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は特に防水構造とすべき部分に部品を取
り付ける構造を改良した内視鏡に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention particularly relates to an endoscope with an improved structure for attaching parts to parts that should be made waterproof.
一般に、内視鏡はその本体部分に他の部品、た
とえば鉗子口部材を取り付ける構造になつている
（たとえば実開昭53−134590号公報）が、その取
付け手段としては接着剤を用いて気密的に固定す
るようになつている。ところで、近年では、全体
的に防水構造とした密封型内視鏡が提供されてい
るなどから、特にその取付け部の気密性が強く要
求されるようになつてきている。たとえば上記量
部材が熱膨張率の異なるものであるときには温度
変化による上記両部材間の応力差により接着剤に
ひびや亀裂が入り易いという問題があつた。
Generally, an endoscope has a structure in which other parts, such as a forceps opening member, are attached to the main body (for example, Japanese Utility Model Application Publication No. 134590/1983), but the attachment means is airtight using adhesive. It is designed to be fixed to Incidentally, in recent years, sealed endoscopes having a waterproof structure as a whole have been provided, and there has been a strong demand for airtightness, especially at the mounting portion. For example, when the above-mentioned members have different coefficients of thermal expansion, there is a problem in that the adhesive is likely to crack or crack due to the difference in stress between the two members due to temperature changes.
ところで、従来、使用されている接着剤として
は、エポキシ系の接着剤またはシリコン系の接着
剤のいずれか一方を使用している。しかるに、エ
ポキシ系の接着剤はその接着力は強いが温度変化
による上記両部材間の応力差を受けるとひびや亀
裂が入り易く、防水性能に落ちるという欠点があ
ることが分つた。一方、シリコン系の接着剤は比
較的弾性に富み、これを用いたときには温度変化
による上記両部材間の応力差を受けてもひびや亀
裂が入りにくく、防水性能はよいが、逆に接着力
が弱く取付け強度に落ちるという欠点があること
が分つた。 By the way, as the adhesive used conventionally, either an epoxy adhesive or a silicone adhesive is used. However, it has been found that although epoxy adhesives have strong adhesive strength, they tend to crack or crack when subjected to stress differences between the two members due to temperature changes, resulting in a decrease in waterproof performance. On the other hand, silicone-based adhesives are relatively elastic, and when used, they do not easily crack or crack even when subjected to stress differences between the two components due to temperature changes, and have good waterproof performance, but on the other hand, adhesive strength It was found that the problem was that the mounting strength was low.
本考案は、上記事情に着目してなされたもの
で、その目的とするところは、部材取付け部の接
着による取付け強度と防水耐久性を共に向上でき
る内視鏡を提供することにある。
The present invention has been developed in view of the above-mentioned circumstances, and its purpose is to provide an endoscope that can improve both the mounting strength and waterproof durability by adhesion of the member mounting portion.
本考案は内視鏡本体側部材に設けた被取付け用
部位に他の部材を接合して気密的に接着するよう
にした内視鏡において、上記被取付け用部位とこ
れに接合する他の部材との接合部間を比較的接着
強度の強い第１の接着剤により接着し、さらに、
上記第１の接着剤を覆うとともに上記内視鏡本体
側部材と他の部材とにわたつて第２の接着剤を設
け、この第２の接着剤は上記第１の接着剤より接
着強度は弱いが弾性に富むものを用い、上記接着
剤の少なくとも二重層構造により接着による取付
け強度と防水耐久性を共に向上できるようにした
内視鏡である。
The present invention relates to an endoscope in which other members are joined and airtightly adhered to a part to be attached provided on a member on the side of the endoscope main body, in which the part to be attached and the other member to be joined to the part to be attached are attached. A first adhesive having a relatively strong adhesive strength is used to bond the joint between the two, and
A second adhesive is provided to cover the first adhesive and span the endoscope main body side member and other members, and this second adhesive has a lower adhesive strength than the first adhesive. This is an endoscope that uses a highly elastic material and has at least a double layer structure of the adhesive to improve both the adhesive mounting strength and the waterproof durability.
第１図および第２図は本考案の一実施例を示す
ものである。第１図はいわゆる細径の内視鏡１の
全体図である。この内視鏡１はその本体側部材を
操作部２、挿入部３およびライトガイドケーブル
４とからなる。上記操作部２はその一部に把持部
５を形成してなり、この把持部５を避けた基端側
部分にはアングル操作機構を内蔵する合成樹脂製
のケース部６が形成されている。このケース部６
には上記ライトガイドケーブル４が連結されてい
る。また、操作部２の基端には接眼部７が設けら
れている。ライトガイドケーブル４の延出先端に
は図示しない光源装置のソケツトに接続するため
のコネクタ８が設けられている。
1 and 2 show an embodiment of the present invention. FIG. 1 is an overall view of a so-called small-diameter endoscope 1. This endoscope 1 consists of an operating section 2, an insertion section 3, and a light guide cable 4 as its main body side members. The operating portion 2 has a grip portion 5 formed in a portion thereof, and a case portion 6 made of synthetic resin that houses an angle operation mechanism is formed at the proximal end portion away from the grip portion 5. This case part 6
The light guide cable 4 is connected to the light guide cable 4. Further, an eyepiece section 7 is provided at the base end of the operation section 2. A connector 8 is provided at the extending end of the light guide cable 4 for connection to a socket of a light source device (not shown).
上記操作部２のケース部６の側壁には内視鏡１
の本体側部材とは別部材であるステンレス製で筒
状の鉗子口部材１０が嵌挿して気密的に取付け固
定されている。すなわち、第２図で示すようにケ
ース部６の側壁には斜めに貫通する孔１１からな
る被取付け部位１２が形成されている。鉗子口部
材１０は孔１１に対して比較的密に嵌め込まれ
る。また、鉗子口部材１０はその挿入側先端に鉗
子チユーブ１３を接続する小径部１４が形成され
ている。鉗子口部材１０と小径部１４との境界に
形成される段部１５は上記孔１１のその対応する
部分に形成された孔段部１６に係合し、鉗子口部
材１０を位置決めする。鉗子口部材１０はそれ以
上深く挿入できない。また、上記小径部１４の先
端縁部外周には突縁部１７が形成されている。そ
して、この突縁部１７は押え片１８に取り付けた
押えねじ１９により上記鉗子口部材１０を挿入方
向に押し込み、位置決め固定するようになつてい
る。 An endoscope 1 is mounted on the side wall of the case section 6 of the operation section 2.
A cylindrical forceps mouth member 10 made of stainless steel, which is a separate member from the main body side member, is fitted and fixed in an airtight manner. That is, as shown in FIG. 2, a mounting portion 12 consisting of a hole 11 passing obliquely through the side wall of the case portion 6 is formed. The forceps mouth member 10 is fitted into the hole 11 relatively tightly. Further, the forceps mouth member 10 has a small diameter portion 14 formed at its insertion side tip to connect the forceps tube 13 thereto. A step 15 formed at the boundary between the forceps mouth member 10 and the small diameter portion 14 engages with a hole step 16 formed in the corresponding portion of the hole 11, thereby positioning the forceps mouth member 10. The forceps mouth member 10 cannot be inserted any deeper. Further, a protruding edge portion 17 is formed on the outer periphery of the tip edge of the small diameter portion 14 . This projecting edge portion 17 is configured to push the forceps mouth member 10 in the insertion direction by means of a presser screw 19 attached to a presser piece 18, thereby positioning and fixing it.
以上のように位置決め固定される鉗子口部材１
０は孔１１からなる被取付け部位１２に接着固定
されるようになつている。すなわち、まず、鉗子
口部材１０と孔１１との接合部間は弾性には劣る
が接着力が強い、たとえばエポシキ系、ウレタン
系またはアクリル系の接着剤からなる第１の接着
剤２１により接着固定される。さらに、ケース部
６内において上記第１の接着剤２１を覆うととも
に上記ケース部６と他の部材たる鉗子口部材１０
わたつて覆う第２の接着剤２２を設ける。この第
２の接着剤２２は上記第１の接着剤２１より接着
強度は弱いが弾性に富む、たとえばシリコン系、
サルフアイド系またはゴム系の接着剤からなる。
つまり、鉗子口部材１０は第１の接着剤２１と第
２の接着剤２２とからなる二重層構造の接着剤２
１，２２により接着固定され、気密的に保持され
るようになつている。 Forceps mouth member 1 positioned and fixed as described above
0 is adapted to be adhesively fixed to an attachment site 12 consisting of a hole 11. That is, first, the joint between the forceps mouth member 10 and the hole 11 is adhesively fixed with a first adhesive 21 made of an epoxy, urethane, or acrylic adhesive that has poor elasticity but strong adhesive force. be done. Furthermore, a forceps mouth member 10 that covers the first adhesive 21 in the case portion 6 and is a member other than the case portion 6 is provided.
A second covering adhesive 22 is provided. The second adhesive 22 has lower adhesive strength than the first adhesive 21 but is highly elastic, such as silicone-based adhesive, etc.
Made of sulfide or rubber adhesive.
In other words, the forceps mouth member 10 has a double-layered adhesive 2 consisting of a first adhesive 21 and a second adhesive 22.
1 and 22, so as to be held airtight.
しかして、第１の接着剤２１により鉗子口部材
１０を強固に固定し、強度を確保するとともに、
第２の接着剤２２により防水性を確保する。つま
り、ケース部６と鉗子口部材１０との熱膨張率の
差により第１の接着剤２１にひびや亀裂が入るこ
とがあつても、第２の接着剤２２はその弾性によ
りひびや亀裂が入ることがない。したがつて、そ
の接続部の防水性を確保できる。 Therefore, the forceps mouth member 10 is firmly fixed by the first adhesive 21 to ensure strength, and
The second adhesive 22 ensures waterproofness. In other words, even if the first adhesive 21 is cracked due to the difference in thermal expansion coefficient between the case part 6 and the forceps mouth member 10, the second adhesive 22 will not crack or crack due to its elasticity. I never go in. Therefore, the waterproofness of the connection portion can be ensured.
なお、上記構成において鉗子口部材１０と孔１
１との接合部間の全体を第１の接着剤２１により
全体的に接着固定することなく、その一部を残
し、この残した間〓部分に上記第２の接着剤２２
を入り込ませるようにしてもよい。 In addition, in the above configuration, the forceps mouth member 10 and the hole 1
1, without fixing the entire joint with the first adhesive 21, leave a part of it, and apply the second adhesive 22 to the left part.
It may also be possible to include the following.
第３図は本考案の他の実施例を示すものであ
る。この実施例はライトガイドケーブルのコネク
タ３０の外周面部に設ける接点ピン３１を固定す
る場合の構造を示す。すなわち、コネクタ３０の
外壁３２に貫通する孔３３を設け、接点ピン３１
に被嵌する絶縁筒部材３４を上記孔３３に嵌め込
み、接着固定するものである。つまり、まず、孔
３３の内壁と絶縁筒部材３４の外周との接合部間
は弾性には劣るが接着力が強い、たとえばエポシ
キ系の接着剤からなる第１の接着剤３５により接
着固定される。さらに、コネクタ３０内において
上記第１の接着剤３５、上記接点ピン３１および
絶縁筒部３４にわたつてこれらを覆うとともにコ
ネクタ３０の内壁にわたつて覆う第２の接着剤３
６を設ける。この第２の接着剤３６は上記第１の
接着剤３５より接着強度は弱いが弾性に富む、た
とえばシリコン系の接着剤からなる。つまり、上
記接点ピン３１付近は第１の接着剤３５と第２の
接着剤３６とからなる二重層構造の接着剤３５，
３６により接着固定され、気密的に保持されるよ
うになつている。 FIG. 3 shows another embodiment of the present invention. This embodiment shows a structure in which a contact pin 31 provided on the outer peripheral surface of a connector 30 of a light guide cable is fixed. That is, a hole 33 passing through the outer wall 32 of the connector 30 is provided, and the contact pin 31 is inserted into the outer wall 32 of the connector 30.
An insulating cylindrical member 34 that fits into the hole 33 is fitted into the hole 33 and fixed by adhesive. That is, first, the joint between the inner wall of the hole 33 and the outer periphery of the insulating cylindrical member 34 is adhesively fixed with a first adhesive 35 made of, for example, an epoxy adhesive, which has poor elasticity but strong adhesive force. . Further, a second adhesive 3 is applied within the connector 30 to cover the first adhesive 35, the contact pins 31, and the insulating cylindrical portion 34, and also to cover the inner wall of the connector 30.
6 will be provided. The second adhesive 36 is made of, for example, a silicone-based adhesive that has lower adhesive strength than the first adhesive 35 but is more elastic. That is, in the vicinity of the contact pin 31, a double layer adhesive 35 consisting of a first adhesive 35 and a second adhesive 36,
It is adhesively fixed by 36 and held airtightly.
なお、本考案は上記各実施例のものに限定され
るものではなく、他の部材を接着固定する場合に
も適用できる。また、接着剤は二重層構造にした
が、さらに、接着剤を重ねてより多重層構造にし
てもよい。 Note that the present invention is not limited to the above-mentioned embodiments, but can also be applied to cases where other members are bonded and fixed. Further, although the adhesive has a double layer structure, it is also possible to further layer the adhesive to form a multilayer structure.
以上説明したように本考案によれば、比較的接
着強度の強い第１の接着剤により強固に接着し、
一方、上記第１の接着剤より接着強度は弱いが弾
性に富む第１の接着剤により、特に、防水耐久性
を確保するようにしたから、部材取付け部の接着
による取付け強度と防水耐久性を共に向上でき
る。しかも、Ｏリングやパツキングなどを用いな
くとも、充分であるから、その構成の簡略化が図
れ、経済的な内視鏡を提供することができる。
As explained above, according to the present invention, the adhesive is firmly attached using the first adhesive having relatively strong adhesive strength,
On the other hand, since the first adhesive, which has lower adhesive strength than the first adhesive but is rich in elasticity, particularly ensures waterproof durability, the mounting strength and waterproof durability of the adhesive at the component attachment part can be improved. We can improve together. In addition, since it is sufficient without using O-rings or packing, the configuration can be simplified and an economical endoscope can be provided.
第１図は本考案の一実施例の内視鏡の全体図、
第２図は第１図中Ａ−Ａ線に沿う断面図、第３図
は本考案の他の実施例を示すコネクタ部の断面図
である。
１……内視鏡、２……操作部、６……ケース
部、１０……鉗子口部材、１１……孔、１２……
被取付け部位、２１，３５……第１の接着剤、２
２，３６……第２の接着剤、３０……コネクタ、
３１……接点ピン、３４……絶縁筒部。
FIG. 1 is an overall view of an endoscope according to an embodiment of the present invention.
2 is a sectional view taken along line A--A in FIG. 1, and FIG. 3 is a sectional view of a connector portion showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Endoscope, 2... Operation part, 6... Case part, 10... Forceps mouth member, 11... Hole, 12...
Attachment site, 21, 35...first adhesive, 2
2, 36...second adhesive, 30...connector,
31...Contact pin, 34...Insulating cylinder part.
Claims (1)
用部位を設け、この被取付け用部位に他の部材を
接合して気密的に接着するようにした内視鏡にお
いて、上記被取付け用部位とこれに接合する他の
部材との接合部間を比較的接着強度の強い第１の
接着剤により接着し、さらに、上記第１の接着剤
を覆うとともに上記内視鏡本体側部位と他の部材
とにわたつて第２の接着剤を設け、この第２の接
着剤は上記第１の接着剤より接着強度は弱いが弾
性に富むことを特徴とする内視鏡。 In an endoscope in which a member on the side of the endoscope main body is provided with a part to be attached that communicates with the inside thereof, and another member is joined to this part to be attached in an airtight manner, the part to be attached and the part to be attached are A first adhesive having a relatively strong adhesive strength is used to bond the joint portion with another member to be joined to this, and further, while covering the first adhesive, the endoscope main body side portion and the other member are bonded together. An endoscope characterized in that a second adhesive is provided over the area, and the second adhesive has lower adhesive strength than the first adhesive but is more elastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985001774U JPH0423220Y2 (en) | 1985-01-10 | 1985-01-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985001774U JPH0423220Y2 (en) | 1985-01-10 | 1985-01-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61119118U JPS61119118U (en) | 1986-07-28 |
| JPH0423220Y2 true JPH0423220Y2 (en) | 1992-05-29 |
Family
ID=30474825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985001774U Expired JPH0423220Y2 (en) | 1985-01-10 | 1985-01-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423220Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649281Y2 (en) * | 1988-10-14 | 1994-12-14 | 旭光学工業株式会社 | End of endoscope |
| JP5746997B2 (en) * | 2011-06-07 | 2015-07-08 | 富士フイルム株式会社 | Method for manufacturing electronic endoscope apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56116440A (en) * | 1980-02-18 | 1981-09-12 | Olympus Optical Co | Endoscope |
| JPS58181011A (en) * | 1982-04-16 | 1983-10-22 | Olympus Optical Co Ltd | Endoscope |
| JPS59124313A (en) * | 1982-12-29 | 1984-07-18 | Sumitomo Electric Ind Ltd | Optical system for optical fiber |
-
1985
- 1985-01-10 JP JP1985001774U patent/JPH0423220Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56116440A (en) * | 1980-02-18 | 1981-09-12 | Olympus Optical Co | Endoscope |
| JPS58181011A (en) * | 1982-04-16 | 1983-10-22 | Olympus Optical Co Ltd | Endoscope |
| JPS59124313A (en) * | 1982-12-29 | 1984-07-18 | Sumitomo Electric Ind Ltd | Optical system for optical fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61119118U (en) | 1986-07-28 |
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