JPH0534380Y2 - - Google Patents
Info
- Publication number
- JPH0534380Y2 JPH0534380Y2 JP1987092431U JP9243187U JPH0534380Y2 JP H0534380 Y2 JPH0534380 Y2 JP H0534380Y2 JP 1987092431 U JP1987092431 U JP 1987092431U JP 9243187 U JP9243187 U JP 9243187U JP H0534380 Y2 JPH0534380 Y2 JP H0534380Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- reinforcing material
- sealing member
- tape
- shaped
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims description 27
- 239000003566 sealing material Substances 0.000 claims description 26
- 239000012779 reinforcing material Substances 0.000 claims description 25
- 239000002759 woven fabric Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 210000004907 gland Anatomy 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- -1 vermiyukilite Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、ダイモールドタイプのグランドパツ
キンや自動車用をはじめとする各種ガスケツトに
好適な密封部材に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sealing member suitable for various gaskets including die-mold type gland packing and automobile use.
従来における上記のような密封部材として、膨
張黒鉛、マイカ、バーミユキライト、多孔質
PTFE等によつてなるテープ状シール材をうず巻
き状に巻き重ね、このうず巻き状とした成形体を
ダイモールド法によつて加圧成形してリング状に
形成したものがある。こうした膨張黒鉛等によつ
てなる密封部材は、加圧によつて容易に変形する
ため良好なシール性を示し、しかも可撓性、耐熱
性および耐食性に優れているため、高温高圧用グ
ランドパツキンやガスケツトとして好適に用いら
れている。
Conventional sealing materials such as those mentioned above include expanded graphite, mica, vermiyukilite, and porous materials.
There is a ring-shaped product in which a tape-shaped sealing material made of PTFE or the like is wound in a spiral shape, and this spiral-shaped molded product is pressure-molded by a die molding method. Sealing members made of expanded graphite or the like exhibit good sealing properties because they are easily deformed by pressure, and they also have excellent flexibility, heat resistance, and corrosion resistance, so they are used as gland packings for high temperature and high pressure applications. It is suitably used as a gasket.
しかしながら、上記のような従来の密封部材
は、剛性が低いために装着部に隙間があるとここ
からはみ出して変形してしまい破損し易いという
問題があつた。また、著しい変形により、交換の
ための抜き出しが困難であつた。さらに、グラン
ドパツキンとして使用した場合、表面の一部が軸
に凝着してしまい、軸の回転に伴つてシール面が
破壊してしまうという問題もあつた。
However, the conventional sealing member as described above has a problem in that, because of its low rigidity, if there is a gap in the mounting portion, the sealing member protrudes from the gap and is easily deformed and damaged. In addition, due to significant deformation, it was difficult to pull out for replacement. Furthermore, when used as a gland packing, there was a problem in that part of the surface adhered to the shaft and the sealing surface was destroyed as the shaft rotated.
本考案は上記のような事情に鑑みなされたもの
であつて、剛性に優れ且つ凝着による密着部への
固着も生じにくい密封部材を提供することを目的
としている。 The present invention was developed in view of the above-mentioned circumstances, and it is an object of the present invention to provide a sealing member that has excellent rigidity and is less likely to adhere to the contact portion due to adhesion.
本考案による密封部材は上記目的を達成するた
めに、細幅のシート状シール材と線状補強材をそ
れぞれ縦糸及び横糸として製織されたテープ状織
布がうず巻き状に巻き重ねられ、このうず巻状態
で加圧成形されてリング状に形成されていること
を特徴とするものである。
In order to achieve the above object, the sealing member according to the present invention has a tape-like woven fabric in which a narrow sheet-like sealing material and a linear reinforcing material are woven as warp and weft threads, respectively, and are wound in a spiral shape. It is characterized in that it is formed into a ring shape by being pressure-molded in the state.
本考案による密封部材は、上記のように、シー
ト状シール材と線状補強材とを製織した構成とし
ているので、接着剤を用いずとも、シール材と補
強材との接合強度を大にしてテープ状織布の剛性
が高められるとともに、シール材の構成材料とし
て膨張黒鉛を使用した場合であつても、その素材
が本来有する可撓性、圧縮復元性等を損なわない
で、密封部材としての優れたシール性能が十分に
保持される。また、リング状に形成された密封部
材全体の可撓性および弾性を保ちつつ、その内周
面に線状補強材が不連続に露出するために、これ
をグランドパツキンとして使用した場合、軸を傷
めることなく、軸表面に凝着したシール材を露出
した線状補強材により掻き取つて、シール面の破
損が防止される。
As described above, the sealing member according to the present invention has a structure in which the sheet-like sealing material and the linear reinforcing material are woven, so that the bonding strength between the sealing material and the reinforcing material can be increased without using an adhesive. In addition to increasing the rigidity of the tape-like woven fabric, even when expanded graphite is used as a constituent material of the sealing material, it can be used as a sealing member without impairing the original flexibility and compression recovery properties of the material. Excellent sealing performance is well maintained. In addition, while maintaining the flexibility and elasticity of the ring-shaped sealing member as a whole, the linear reinforcing material is discontinuously exposed on the inner peripheral surface of the sealing member, so when it is used as a gland packing, the shaft The sealing material adhered to the shaft surface can be scraped off by the exposed linear reinforcing material without causing any damage, thereby preventing damage to the sealing surface.
以下、本考案を図示した実施例に基づいて説明
する。
Hereinafter, the present invention will be explained based on illustrated embodiments.
第１図は本考案に係る密封部材の斜視図、第２
図は同じく半截断面図であり、これらの図におい
て、密封部材１は、シール材３′及び補強材４′に
よりなる。以下、これをさらに詳説する。 Figure 1 is a perspective view of the sealing member according to the present invention, Figure 2 is a perspective view of the sealing member according to the present invention;
The figures are also half-cut sectional views, and in these figures, the sealing member 1 consists of a sealing material 3' and a reinforcing material 4'. This will be explained in more detail below.
前記シール材３′と補強材４′は、当初はそれぞ
れ第３図に示すような細幅のシート状シール材３
と線状補強材４であり、これらシート状シール材
３と線状補強材４は、シート状シール材３を縦糸
とし、線状補強材４を横糸として製織され、これ
によつて第３図に示すようなテープ状織布２に構
成されている。 Initially, the sealing material 3' and the reinforcing material 4' are each a narrow sheet-shaped sealing material 3 as shown in FIG.
and a linear reinforcing material 4, and these sheet-like sealing material 3 and linear reinforcing material 4 are woven with the sheet-like sealing material 3 as the warp and the linear reinforcing material 4 as the weft. It is composed of a tape-shaped woven fabric 2 as shown in FIG.
シート状シール材３は、膨張黒鉛、マイカ、バ
ーミユキライト等の可撓性、弾性、耐熱性、耐食
性及び圧縮復元性に優れた材料によつてなり、例
えば膨張黒鉛の場合、膨張黒鉛の粉末を加圧成形
してなる。尚、このシート状シール材３は、上記
膨張黒鉛等にシール材主体単体でなるものであつ
もよいが、前記シール材主体に、ゴム、シリコ
ン、エポキシ等でなる少量の結合材を加えたもの
であつてもよい。 The sheet-shaped sealing material 3 is made of a material with excellent flexibility, elasticity, heat resistance, corrosion resistance, and compression recovery properties such as expanded graphite, mica, and vermiyukilite. For example, in the case of expanded graphite, expanded graphite powder is used. It is made by pressure molding. Note that this sheet-shaped sealing material 3 may be made of the above-mentioned expanded graphite or the like as a main part of the sealing material, but it may also be made of the above-mentioned sealing material with a small amount of a binder made of rubber, silicone, epoxy, etc. added thereto. It may be.
一方、線状補強材４は、炭素繊維、アラミツド
繊維、フエノール樹脂繊維、ガラス繊維、セラミ
ツク繊維、あるいはステンレス鋼線等の金属繊維
によつてなる。 On the other hand, the linear reinforcing material 4 is made of carbon fiber, aramid fiber, phenol resin fiber, glass fiber, ceramic fiber, or metal fiber such as stainless steel wire.
以上のようにしてなるテープ状織布２は、第４
図に示すようにうず巻き状に重ねられ、これによ
つて成形体５が得られる。この成形体５は、第５
図に示すような金型Ａに入れて加圧成形すること
により、前述した第１図に示すような、シール材
３′と補強材４′よりなるリング状の密封部材１と
されるのである。 The tape-shaped woven fabric 2 made as described above is made of
As shown in the figure, the molded body 5 is obtained by stacking them in a spiral shape. This molded body 5 is the fifth
By placing it in a mold A as shown in the figure and press-molding it, a ring-shaped sealing member 1 made of a sealing material 3' and a reinforcing material 4' as shown in FIG. 1 mentioned above is obtained. .
このように密封部材１はテープ状織布２をうず
巻き状に巻き重ねた成形体５を加圧成形してなる
ものであり、従来品と同様のダイモールド法によ
つて得ることができる。また、テープ状織布２
は、シール材３′となるシート状シール材３と補
強材４′となる線状補強材４が接着剤を用いるこ
となく複合されたものであり、密封部材１となさ
れたときの加熱減量が抑制される。さらに、リン
グ状となされた密封部材１の内周面には、補強材
３′が周方向に不連続的に露出することになり、
グランドパツキンとして用いた場合、この露出し
た補強材３′が軸に凝着したシール材を掻き取る。
さらにまた、上記成形体５と金型Ａに入れて加圧
成形したとき、この成形体５は、軸方向に大きく
圧縮され径方向への圧縮量は小さいのに対し、線
状補強材４は周方向に設けられているため、成形
時の破損が少ない。 As described above, the sealing member 1 is formed by pressure-molding the molded body 5 obtained by winding the tape-like woven fabric 2 in a spiral shape, and can be obtained by the same die-molding method as conventional products. In addition, tape-shaped woven fabric 2
The sheet-shaped sealing material 3 which becomes the sealing material 3' and the linear reinforcing material 4 which becomes the reinforcing material 4' are composited without using an adhesive, and the heat loss when made into the sealing member 1 is as follows. suppressed. Furthermore, the reinforcing material 3' is discontinuously exposed in the circumferential direction on the inner peripheral surface of the ring-shaped sealing member 1.
When used as a gland packing, this exposed reinforcing material 3' scrapes off sealing material adhered to the shaft.
Furthermore, when the molded body 5 is placed in the mold A and pressure-formed, the molded body 5 is largely compressed in the axial direction and the amount of compression in the radial direction is small, whereas the linear reinforcing material 4 is Since it is provided in the circumferential direction, there is less damage during molding.
尚、本考案が上記実施例に限定されないのはも
ちろんであつて、例えばテープ状織布は、第６図
に示すテープ状織布１２のように、縦糸となるテ
ープ状織布１３と横糸となる線状補強材１４が多
少傾斜したものであつてもよい。このようにする
と線状補強材１４として、炭素繊維、ガラス繊
維、セラミツクス繊維等の高弾性材を用いた場合
に、テープ状織布１２を巻き重ねてなる成形体の
半径よりも、この成形体中で螺旋状となる線状補
強材１４の曲率半径の方が大きくなり、巻き重ね
時の変形が容易となる。 It should be noted that the present invention is of course not limited to the above-mentioned embodiments, and for example, a tape-shaped woven fabric may be used, such as a tape-shaped woven fabric 12 shown in FIG. The linear reinforcing material 14 may be slightly inclined. In this way, when a highly elastic material such as carbon fiber, glass fiber, or ceramic fiber is used as the linear reinforcing material 14, the radius of the molded product formed by wrapping the tape-like woven fabric 12 The radius of curvature of the linear reinforcing material 14, which is formed into a spiral shape, becomes larger, making it easier to deform during winding.
以上の説明から、明らかなように、本考案によ
れば、シール材と補強材が製織されているから、
接着剤を用いることなく、シール材と補強材の接
合強度を大きくして、密封部材の剛性を大幅に向
上することができる。しかも、シール材が本来的
に有する可撓性、弾性、耐熱性、耐食性及び圧縮
復元性等の特性を損なうことなく、密封部材とし
て要求の高い優れたシール性能を十分に保持させ
ることができる。したがつて、装着部に隙間があ
つても、変形によりその隙間からはみ出して破損
することを抑制することができる。また、グラン
ドパツキンとして使用した場合、可撓性および弾
性を保ちつつ、その内周面に不連続に露出する線
状補強材によつて軸表面に凝着したシール材を掻
き取ることになり、軸を傷めることなく、シール
面の破損も極力抑制することもできるという効果
を奏する。
As is clear from the above explanation, according to the present invention, since the sealing material and reinforcing material are woven,
Without using an adhesive, the bonding strength between the sealing material and the reinforcing material can be increased, and the rigidity of the sealing member can be significantly improved. Moreover, it is possible to sufficiently maintain the excellent sealing performance that is highly required as a sealing member without impairing the properties inherent to the sealing material such as flexibility, elasticity, heat resistance, corrosion resistance, and compression recovery. Therefore, even if there is a gap in the mounting portion, it is possible to prevent the device from protruding from the gap and being damaged due to deformation. In addition, when used as a gland packing, the linear reinforcing material discontinuously exposed on the inner peripheral surface scrapes off the sealing material adhered to the shaft surface while maintaining flexibility and elasticity. This has the effect of minimizing damage to the sealing surface without damaging the shaft.
第１図は本考案の一実施例を示す斜視図、第２
図は同じく半截断面図、第３図はテープ状織布の
平面図、第４図は成形体の斜視図、第５図は加圧
成形時の状態を示す説明図、第６図はテープ状織
布の変形例を示す平面図である。
１……密封部材、２……テープ状織布、３……
シート状シール材、４……線状補強材。
Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is also a half-cut sectional view, Figure 3 is a plan view of the tape-shaped woven fabric, Figure 4 is a perspective view of the molded product, Figure 5 is an explanatory view showing the state during pressure molding, and Figure 6 is the tape-shaped woven fabric. FIG. 7 is a plan view showing a modification of the woven fabric. 1... Sealing member, 2... Tape-shaped woven fabric, 3...
Sheet-shaped sealing material, 4... Linear reinforcing material.
Claims (1)
れ縦糸及び横糸として製織されたテープ状織布が
うず巻き状に巻き重ねられ、且つこのうず巻き状
態で加圧成形されてリング状に形成されているこ
とを特徴する密封部材。 A tape-like woven fabric made of narrow sheet-like sealing material and linear reinforcing material as warp and weft threads, respectively, is wound in a spiral shape, and this spiral shape is press-formed to form a ring shape. A sealing member characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987092431U JPH0534380Y2 (en) | 1987-06-16 | 1987-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987092431U JPH0534380Y2 (en) | 1987-06-16 | 1987-06-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63201261U JPS63201261U (en) | 1988-12-26 |
| JPH0534380Y2 true JPH0534380Y2 (en) | 1993-08-31 |
Family
ID=30954132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987092431U Expired - Lifetime JPH0534380Y2 (en) | 1987-06-16 | 1987-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0534380Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5993568A (en) * | 1982-11-17 | 1984-05-30 | Chuo Spring Co Ltd | Method for forming heat resistant gasket |
-
1987
- 1987-06-16 JP JP1987092431U patent/JPH0534380Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5993568A (en) * | 1982-11-17 | 1984-05-30 | Chuo Spring Co Ltd | Method for forming heat resistant gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63201261U (en) | 1988-12-26 |
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