JPH0261855B2 - - Google Patents
Info
- Publication number
- JPH0261855B2 JPH0261855B2 JP59173197A JP17319784A JPH0261855B2 JP H0261855 B2 JPH0261855 B2 JP H0261855B2 JP 59173197 A JP59173197 A JP 59173197A JP 17319784 A JP17319784 A JP 17319784A JP H0261855 B2 JPH0261855 B2 JP H0261855B2
- Authority
- JP
- Japan
- Prior art keywords
- bead
- mold
- metal
- protrusion
- width
- 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
- 239000011324 bead Substances 0.000 claims description 82
- 239000002184 metal Substances 0.000 claims description 56
- 239000000758 substrate Substances 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 description 8
- 238000013459 approach Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、金属ガスケツトのビード形成用金
型に係り、特にシール箇所によりばね定数を相違
させたビードを形成し得る金属ガスケツトのビー
ド形成用金型に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mold for forming a bead of a metal gasket, and in particular a mold for forming a bead of a metal gasket that can form beads with different spring constants depending on the sealing location. Regarding molds.
弾性を有する金属板に形成したビードをボルト
締結力により接合面に押圧してシール線を形成
し、接合面を弾性的にシールする金属ガスケツト
が知られている。この金属ガスケツトは、雄型と
雌型とから成る一対の金型によつて、ビードをプ
レス形成している。即ち、対になるべき金属基板
の一方の基板面に突隆部を突出させて切削形成す
ることにより雄型とし、他方の金属基板には前記
突隆部に対応する溝状の窪部を穿設して雌型とし
ている。これら雄型と雌型との間に金属板を挾装
し、強圧保持することによりビードを形成してい
る。
2. Description of the Related Art A metal gasket is known that elastically seals a joint surface by pressing a bead formed on an elastic metal plate against a joint surface by a bolt fastening force to form a seal line. The beads of this metal gasket are press-formed using a pair of molds consisting of a male mold and a female mold. That is, one of the metal substrates to be paired is made into a male shape by cutting and protruding a protrusion on the surface of one of the substrates, and the other metal substrate is formed with a groove-like recess corresponding to the protrusion. It is a female type. A metal plate is sandwiched between the male mold and the female mold and held under strong pressure to form a bead.
ところで、前記接合面には、締結時に各部位で
異なつた締結力が作用する。例えば、ボルト締結
部位近傍では大なる締結力が作用し、締結部から
離間するに従い締結力は弱まる。そこで、第７図
の如く、金属ガスケツト２６のボルト締結部位た
るボルト孔４０の孔ビード４２は、ばね定数の小
さなビード、例えばビード幅に対して相対的にビ
ード高さの低いビードに形成しなければ、締結力
が孔ビード４２に集中してしまい、ボルト孔４０
から離間する部位のビードに締結力を作用させ得
ず、漏れを生ずる不都合があつた。一方、締結部
位たる前記ボルト孔４０から離間する部位にある
ボア用孔４４を囲繞する内側ビード４６や外側ビ
ード４８の中間部位は、締結力が弱いため、ばね
定数の大きなビード、例えばビード幅に対して相
対的にビード高さの高いビードに形成しなければ
ならなかつた。 By the way, different fastening forces act on the joint surfaces at different parts during fastening. For example, a large fastening force acts near the bolt fastening part, and the fastening force weakens as the bolt moves away from the fastening part. Therefore, as shown in FIG. 7, the hole bead 42 of the bolt hole 40, which is the bolt fastening part of the metal gasket 26, must be formed into a bead with a small spring constant, for example, a bead with a low bead height relative to the bead width. In this case, the fastening force is concentrated on the hole bead 42, and the bolt hole 40
There was an inconvenience that a fastening force could not be applied to the bead at a portion separated from the bead, resulting in leakage. On the other hand, the intermediate portions of the inner bead 46 and the outer bead 48 that surround the bore hole 44, which are located away from the bolt hole 40, which is the fastening portion, have weak fastening force, so the fastening force is weak in the middle portion of the inner bead 46 and the outer bead 48, which are located away from the bolt hole 40, which is the fastening portion. In contrast, the bead had to be formed with a relatively high bead height.
ところが、従来は前述の如く雄型に切削形成し
た突隆部と雌型に穿設した溝状の窪部とによりビ
ードを形成するため、シール箇所によりばね定数
を相違させるべくビード高さを変えてビードを形
成するには、高低差を設けた突隆部を基板面に切
削形成しなければならない。このため、金型の成
形方式が複雑かつ困難になり、金型の成形に多大
の労力と時間とを必要とし、きわめて高価な金型
になる不都合があつた。
However, in the past, as mentioned above, the bead was formed by a protrusion cut into the male die and a groove-shaped depression drilled into the female die, so the bead height was changed to vary the spring constant depending on the sealing location. In order to form a bead, it is necessary to cut and form protrusions with different heights on the substrate surface. For this reason, the molding method of the mold becomes complicated and difficult, and the molding requires a great deal of labor and time, resulting in an extremely expensive mold.
そこで、この発明はこのような問題を解消し、
ビード高さに対しビード幅を異ならせてシール箇
所によりばね定数を相違させたビードを有する金
属ガスケツトを形成する金型を容易に成形し得て
かつ容易に得ることのできる金属ガスケツトのビ
ード形成用金型を実現することを目的とする。
Therefore, this invention solves these problems and
For forming a bead in a metal gasket that can be easily formed and obtained by easily forming a mold for forming a metal gasket having a bead with a different spring constant depending on the sealing location by varying the bead width with respect to the bead height. The purpose is to realize the mold.
この目的を達成するためにこの発明は、一の金
属基板にシール箇所を囲繞する所要ビード形状に
スリツトを穿設するとともにこのスリツトに金属
帯板を基板面から所定高さ突出させて固く埋設し
て突出部を形成して雄型金型とし、他の金属基板
には前記一の金属基板の突出部に対向するととも
にシール箇所により幅を異ならせて所要ビード形
状に開口部を開設して雌型金型としたことを特徴
とする。
In order to achieve this object, the present invention involves drilling a slit in a required bead shape to surround a sealing point in one metal substrate, and firmly embedding a metal strip in the slit so as to protrude from the substrate surface at a predetermined height. A protrusion is formed on the other metal substrate to form a male mold, and an opening is formed in the desired bead shape on the other metal substrate, facing the protrusion on the first metal substrate and having a width different depending on the sealing location. It is characterized by being made into a mold.
この発明の構成によれば、一の金属基板にシー
ル箇所を囲繞する所要ビード形状にスリツトを穿
設するとともにこのスリツトに金属帯板を基板面
から所定高さ突出させて固く埋設して突出部を形
成して雄型金型とし、他の金属基板に前記突出部
に対向するとともにシール箇所により幅を異なら
せて所要ビード形状に開口部を開設して雌型金型
としたことにより、ビード高さに対してビード幅
を異ならせてシール箇所によりばね定数を相違さ
せたビードを有する金属ガスケツトを形成する金
型を容易に形成し得てかつ容易に得ることができ
る。
According to the structure of the present invention, a slit is formed in one metal substrate in the required bead shape surrounding the sealing area, and a metal strip is firmly embedded in the slit by protruding from the substrate surface at a predetermined height, thereby forming a protruding portion. A male mold was formed by forming an opening in the desired bead shape, and an opening was formed in the desired bead shape on the other metal substrate, facing the protrusion and having a width different depending on the sealing location, thereby forming a female mold. A mold for forming a metal gasket having beads with different bead widths relative to height and with different spring constants depending on the sealing location can be easily formed and obtained.
次にこの発明の実施例を図に基づいて詳細に説
明する。
Next, embodiments of the present invention will be described in detail based on the drawings.
第１〜５図は、この発明の一実施例を示すもの
である。第３図において、２は第７図に示す如き
金属ガスケツト２６のビード形成用金型であり、
２枚の金属基板より構成する。一方の金属基板は
雄型４とし、第１図に示す如く、この雄型４に
は、ワイヤカツタ（図示せず）等の切断装置によ
りシール箇所を囲繞する所要モード形状にスリツ
ト６を穿設する。このスリツト６には、金属帯板
８を基板面１０から所定の高さｈだけ突出させて
固く埋設し、突出部１２を形成する。 1 to 5 show an embodiment of the present invention. In FIG. 3, 2 is a mold for forming a bead of a metal gasket 26 as shown in FIG.
Consists of two metal substrates. One of the metal substrates is a male die 4, and as shown in FIG. 1, a slit 6 is bored in the male die 4 in a desired mode shape surrounding the sealing area using a cutting device such as a wire cutter (not shown). . A metal strip 8 is firmly embedded in the slit 6 so as to protrude from the substrate surface 10 by a predetermined height h, thereby forming a protrusion 12.
一方、他方の金属基板は雌型１４とし、第２図
に示す如く、ワイヤカツタ等の切断装置により前
記雄型４に埋設した金属帯板の突出部１２に対向
するとともにシール箇所により幅を異ならせて所
要ビード形状に開口部１６を開設する。この開口
部１６は、ボルト締結部位に近接するに従い幅が
大になるように、上下同幅のスリツト様に開設す
る。 On the other hand, the other metal substrate is a female mold 14, which is cut with a cutting device such as a wire cutter to face the protrusion 12 of the metal strip buried in the male mold 4, and has a width different depending on the sealing location, as shown in FIG. The opening 16 is opened in the desired bead shape. This opening 16 is opened like a slit with the same width above and below, and the width increases as it approaches the bolt fastening site.
即ち、ボルト孔４０から離間する部位にあるボ
ア用孔４４を囲繞する内側ビード４６や外側ビー
ド４８を形成する雌型１４の開口部１６の幅は、
前記所定高さｈの突出部１２とにより後記する原
板２８ｎを弾性限度を越えて変形させるべく、ボ
ルト孔４０から離間するに従い第４図に示す如く
小幅W1に形成する。逆に、ボルト孔４０に近接
するに従い雌型１４の開口部１６の幅は次第に大
きくし、ボルト孔４０周囲の孔ビード４２の開口
部１６の幅は所定高さｈの突出部１２とにより後
記する原板２８ｎを弾性限度をわずかに越えて、
あるいは弾性限度内で変形させるべく第５図に示
す如く大幅W2に形成する。 That is, the width of the opening 16 of the female die 14 that forms the inner bead 46 and the outer bead 48 surrounding the bore hole 44 in a portion spaced apart from the bolt hole 40 is as follows:
In order to deform the original plate 28n, which will be described later, beyond the elastic limit by the protrusion 12 having the predetermined height h, the width W1 is formed to become narrower as shown in FIG. 4 as the distance from the bolt hole 40 increases. On the contrary, the width of the opening 16 of the female mold 14 is gradually increased as it approaches the bolt hole 40, and the width of the opening 16 of the hole bead 42 around the bolt hole 40 is increased by the protrusion 12 having a predetermined height h, as described later. The original plate 28n slightly exceeds the elastic limit,
Alternatively, in order to deform within the elastic limit, it is formed to have a wide width W 2 as shown in FIG.
前記雄型４の金属帯板８の突出部１２と前記雌
型１４の開口部１６とを対向一致させ、第３図に
示す如く、夫々雄型４と雌型１４とを台座１８，
２０にボルト等の固定具２２で固定し、金型２を
完成する。なお、符号２４は雌型１４の基板面、
符号２８は金属ガスケツトの主板、２８ｎは金属
ガスケツト２６の原板である。 The protrusion 12 of the metal band plate 8 of the male mold 4 and the opening 16 of the female mold 14 are arranged to face each other, and as shown in FIG.
20 with fixing tools 22 such as bolts, and the mold 2 is completed. In addition, the code|symbol 24 is the board|substrate surface of the female mold 14,
Reference numeral 28 is the main plate of the metal gasket, and 28n is the original plate of the metal gasket 26.
なお、突出部１２および開口部１６は、それぞ
れ基板面１０，２４にそれぞれ直接彫設すること
もできる。 Note that the protrusion 12 and the opening 16 can also be carved directly into the substrate surfaces 10 and 24, respectively.
次にこの実施例の作用について説明する。 Next, the operation of this embodiment will be explained.
第４，５図に実線で示す如く、先ず、対向させ
た雄型４と雌型１４との間の所定位置に金属ガス
ケツト２６のビード形成用の弾性金属板よりなる
原板２８ｎを位置させる。次いで、雌型１４を油
圧等により押進させ、それぞれの基板面１０，２
４間で原板２８ｎを弾圧保持する。 As shown by solid lines in FIGS. 4 and 5, first, an original plate 28n made of an elastic metal plate for forming beads of the metal gasket 26 is placed at a predetermined position between the opposing male die 4 and female die 14. Next, the female mold 14 is pushed forward by hydraulic pressure or the like, and the respective substrate surfaces 10 and 2 are
The original plate 28n is held with pressure between the two.
このとき、雄型４に埋設した金属帯板８の所定
高さｈの突出部１２に対向する雌型１４の開口部
１６の幅は、ボルト孔４０に近接するに従い大と
なるように形成している。 At this time, the width of the opening 16 of the female die 14 facing the protrusion 12 of the predetermined height h of the metal strip plate 8 embedded in the male die 4 is formed to increase as it approaches the bolt hole 40. ing.
このため、第４図の如く、雌型１４の開口部１
６が小幅W1の場合には、原板２８ｎは突出部１
２に押圧されることにより弾性限度を越えて変形
し、一点鎖線に示す如くビード高さに対してせま
いビード幅W1のばね定数の大なるビード３０が
形成される。一方、開口部１６の幅は、ボルト孔
４０に近接するに従い大となるので、ビードも次
第にビード高さに対して大なるビード幅のばね定
数が小なるものが形成される。そして、第５図に
示す如く、開口部１６の幅が大幅W2になると、
原板２８は突出部１２に押圧されることにより弾
性限度をわずかに越えてわずかに変形し、ビード
高さに対して広いビード幅W1のばね定数の小な
るビード３２が形成される。あるいは、弾性限度
内で変形させることにより、雌型１４を引退動さ
せた際に原板２８ｎを復元させ、ビードが形成さ
れないようにすることもできる。 For this reason, as shown in FIG.
6 has a small width W 1 , the original plate 28n has a protrusion 1
2, the bead 30 is deformed beyond its elastic limit, and a bead 30 with a small bead width W 1 and a large spring constant is formed with respect to the bead height, as shown by the dashed line. On the other hand, since the width of the opening 16 increases as it approaches the bolt hole 40, the bead is formed such that the spring constant of the bead width is gradually decreased relative to the bead height. Then, as shown in FIG. 5, when the width of the opening 16 becomes significantly W2 ,
When the original plate 28 is pressed by the protrusion 12, it is slightly deformed slightly exceeding the elastic limit, and a bead 32 with a large bead width W1 and a small spring constant is formed relative to the bead height. Alternatively, by deforming within the elastic limit, the original plate 28n can be restored to its original state when the female mold 14 is retracted, and beads can be prevented from being formed.
このように、雄型４の所定高さｈの突出部１２
とボルト締結部位に近接するに従い幅が大になる
雌型１４の開口部１６とにより、ボルト締結部位
近傍はビード高さに対して広いビード幅のばね定
数の小なるビードが形成されるとともに締結部位
から離間するに従いビード高さに対して狭いビー
ド幅のばね定数の大なるビードが形成される。あ
るいは、ビードを形成しないこともできる。この
ため、ビード高さに対してビード幅を異ならせて
シール箇所によりばね定数を相違させたビードを
有する所望性能の金属ガスケツトを形成する金型
を容易に成形することができる。 In this way, the protrusion 12 of the male mold 4 having a predetermined height h
and the opening 16 of the female die 14 whose width increases as it approaches the bolt fastening site, a bead with a small spring constant and a wide bead width relative to the bead height is formed in the vicinity of the bolt fastening site, and the fastening process is completed. As the distance from the part increases, a bead with a narrower bead width and a larger spring constant is formed relative to the bead height. Alternatively, no beads may be formed. Therefore, it is possible to easily form a mold for forming a metal gasket with desired performance, which has beads with different spring constants depending on the sealing location by varying the bead width with respect to the bead height.
第６図は、この発明の別の実施例を示すもので
ある。この実施例の特徴とするところは、一方の
金属基板は雄型４とし、この雄型４にワイヤカツ
タ等の切断装置によりシール箇所を囲繞する所要
ビード形状にスリツト６を穿設し、このスリツト
６に金属帯板８を基板面１０から所定高さｈ突出
させて固く埋設して突出部１２を形成する。他方
の金属基板は雌型２０とし、この雌型２０にワイ
ヤカツタ等の切断装置により前記雄型４に埋設し
た金属帯板８の所定高さｈの突出部１２に対向す
る所要ビード形状にスリツト３４を穿設する。こ
のスリツト３４の基面板２４側には、ボルト孔４
０に近接するに従い幅が大になり、離間するに従
い傾斜開口する所要幅W3の開口部３６を開設し
たことにある。 FIG. 6 shows another embodiment of the invention. The feature of this embodiment is that one of the metal substrates is a male die 4, and a slit 6 is formed in the male die 4 using a cutting device such as a wire cutter in the desired bead shape surrounding the sealing area. Then, a metal strip 8 is made to protrude from the substrate surface 10 by a predetermined height h and is firmly embedded to form a protrusion 12. The other metal substrate is a female die 20, and a slit 34 is cut into the female die 20 using a cutting device such as a wire cutter to form a desired bead shape facing the protrusion 12 of a predetermined height h of the metal strip 8 embedded in the male die 4. to be drilled. A bolt hole 4 is provided on the side of the base plate 24 of this slit 34.
The opening 36 has a required width W3 , which increases in width as it approaches zero and becomes more inclined as it moves away from the opening.
このように雌型２０を形成すれば、前述の如き
ビード高さに対してビード幅を異ならせてばね定
数を相違させたビード３８を有する所望性能の金
属ガスケツトの形成に際し、雌型１４の開口部３
６の切削量はわずかで済み、金型の成形が容易に
なるとともに要する労力と時間を減少させること
ができる。なお、スリツト３４を形成することな
く、傾斜開口からなる開口部３６を雌型１４の基
板面２４に直接彫設することもできるのは、もち
ろんである。 By forming the female mold 20 in this manner, the opening of the female mold 14 can be easily opened when forming a metal gasket having the desired performance and having beads 38 having different spring constants by varying the bead width with respect to the bead height as described above. Part 3
The amount of cutting required in step 6 is small, making molding of the mold easier and reducing the amount of labor and time required. It goes without saying that the opening 36 consisting of an inclined opening can be carved directly into the substrate surface 24 of the female mold 14 without forming the slit 34.
このように、この発明の金属ガスケツトのビー
ド形成用金型によれば、一の金属基板にシール箇
所を囲繞する所要ビード形状にスリツトを穿設す
るとともにこのスリツトに金属帯板を基板面から
所定高さ突出させて固く埋設して突出部を形成し
て雄型金型とし、他の金属基板に前記突出部に対
向するとともにシール箇所により幅を異ならせて
所要モード形状に開口部を開設して雌型金型とし
たことにより、ビード高さに対してビード幅を異
ならせてシール箇所によりばね定数を相違させた
ビードを有する所望性能の金属ガスケツトを形成
する金型を、容易に形成し得てかつ容易に得るこ
とができる。
As described above, according to the metal gasket bead forming mold of the present invention, a slit is bored in one metal substrate in the desired bead shape surrounding the sealing area, and a metal strip is inserted into the slit in a predetermined position from the substrate surface. A male mold is formed by protruding in height and firmly buried to form a protrusion, and an opening is formed in the desired mode shape on another metal substrate, facing the protrusion and having different widths depending on the sealing location. By using a female mold, it is easy to form a mold that forms a metal gasket with the desired performance, which has beads with different bead widths and different spring constants depending on the sealing location. can be obtained and easily obtained.
即ち、シール箇所によりばね定数を相違させる
べくビード幅に対してビード高さを変えたビード
を有する金属ガスケツトを形成するための金型
は、高低差を設けた突隆部を基板面に切削形成し
なければならない。このため、金型の成形方式が
複雑かつ困難になり、金型の成形に多大の労力と
時間とを必要とし、きわめて高価な金型になる不
都合がある。 In other words, a mold for forming a metal gasket having a bead in which the bead height is varied with respect to the bead width in order to vary the spring constant depending on the sealing location is a mold that cuts and forms protrusions with height differences on the substrate surface. Must. Therefore, the molding method of the mold becomes complicated and difficult, and the molding requires a great deal of labor and time, resulting in an extremely expensive mold.
しかし、本願発明は、ビード高さに対してビー
ド幅を異ならせてシール箇所によりばね定数を相
違させたビードを有する金属ガスケツトを形成す
べく、前記の如く一の金属基板を雄型として金属
帯板により所定高さの突出部を形成し、一方、他
の金属基板を雌型としてこの雌型にシール箇所に
より幅を異ならせた開口部を開設する構成とした
ので、金型の成形が容易であり、したがつて金型
を容易に得ることができる。 However, in the present invention, in order to form a metal gasket having beads in which the bead width is different from the bead height and the spring constant is varied depending on the sealing location, the metal band is formed using one metal substrate as a male mold as described above. The plate forms a protrusion of a predetermined height, while the other metal substrate is used as a female mold, and the female mold has openings with different widths depending on the sealing location, making it easy to form the mold. Therefore, a mold can be easily obtained.
このため、金型の成形に要する労力と時間とを
減少させることができ、コスト低減に寄与し得る
ものである。また、例えば、雌型の基板面側に、
ボルト締結部位に近接するに従い幅が大になるよ
うに、基板面側に末広がりに傾斜開口する開口部
を設けることにより、金型成形の際に切削量をよ
り減少させ得て、労力と時間とをさらに減少させ
ることができるものである。 Therefore, the labor and time required for molding can be reduced, which can contribute to cost reduction. Also, for example, on the female mold board side,
By providing an opening that widens at an angle toward the board surface so that the width increases as it approaches the bolt fastening area, the amount of cutting during mold molding can be further reduced, saving labor and time. can be further reduced.
第１〜５図はこの発明の一実施例を示し、第
１，２図は夫々雄型及び雌型の成形状態を示す断
面図、第３図は金型の要部断面図、第４，５図は
夫々ビード形成状態を示す金型の要部断面図であ
る。第６図はこの発明の別の実施例を示すビード
形成状態の金型の要部断面図である。第７図は金
属ガスケツトの平面図である。
図において、２は金型、４は雄型、６はスリツ
ト、８は金属帯板、１２は突出部、１４は雌型、
１６，３６は開口部、２６は金属ガスケツト、２
８は主板、２８ｎは原板、３０，３２，３８はビ
ード、W1，W2，W3は開口部１６の幅、ｈは突
出部１２の高さである。
Figures 1 to 5 show an embodiment of the present invention, Figures 1 and 2 are cross-sectional views showing the molding states of the male and female molds, respectively, Figure 3 is a cross-sectional view of the main parts of the mold, FIG. 5 is a sectional view of the main part of the mold showing the bead forming state. FIG. 6 is a sectional view of a main part of a mold in a bead forming state showing another embodiment of the present invention. FIG. 7 is a plan view of the metal gasket. In the figure, 2 is a mold, 4 is a male mold, 6 is a slit, 8 is a metal strip, 12 is a protrusion, 14 is a female mold,
16, 36 are openings, 26 is a metal gasket, 2
8 is the main plate, 28n is the original plate, 30, 32, 38 are beads, W 1 , W 2 , W 3 are the widths of the opening 16, and h is the height of the protrusion 12.
Claims (1)
ード形状にスリツトを穿設するとともにこのスリ
ツトに金属帯板を基板面から所定高さ突出させて
固く埋設して突出部を形成して雄型金型とし、他
の金属基板には前記一の金属基板の突出部に対向
するとともにシール箇所により幅を異ならせて所
要ビード形状に開口部を開設して雌型金型とした
ことを特徴とする金属ガスケツトのビード形成用
金型。1. A slit is formed in one metal substrate in the required bead shape to surround the sealing area, and a metal strip is firmly embedded in the slit by protruding from the substrate surface to a predetermined height to form a protrusion. The method is characterized in that the other metal substrate has an opening in a desired bead shape facing the protrusion of the first metal substrate and having a width different depending on the sealing location to form a female mold. Mold for forming metal gasket beads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59173197A JPS6152938A (en) | 1984-08-22 | 1984-08-22 | Forming method of die for bead forming of metallic gasket and its die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59173197A JPS6152938A (en) | 1984-08-22 | 1984-08-22 | Forming method of die for bead forming of metallic gasket and its die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6152938A JPS6152938A (en) | 1986-03-15 |
| JPH0261855B2 true JPH0261855B2 (en) | 1990-12-21 |
Family
ID=15955897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59173197A Granted JPS6152938A (en) | 1984-08-22 | 1984-08-22 | Forming method of die for bead forming of metallic gasket and its die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6152938A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584204A (en) * | 1993-05-06 | 1996-12-17 | Kabushikikaisha Ket & Ket | Press progressive dies for a metallic gasket |
| JP2640800B2 (en) * | 1993-05-26 | 1997-08-13 | 株式会社ケットアンドケット | Metal gasket bead forming mold |
| WO2011024812A1 (en) * | 2009-08-26 | 2011-03-03 | Nok株式会社 | Metal gasket and method for producing die for metal gasket |
| JP5491151B2 (en) * | 2009-12-04 | 2014-05-14 | いすゞ自動車株式会社 | gasket |
-
1984
- 1984-08-22 JP JP59173197A patent/JPS6152938A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6152938A (en) | 1986-03-15 |
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| LAPS | Cancellation because of no payment of annual fees |