DE942729C - Process for producing a smooth, riveted and hardened joint, especially for pliers, scissors and the like. like - Google Patents
Process for producing a smooth, riveted and hardened joint, especially for pliers, scissors and the like. likeInfo
- Publication number
- DE942729C DE942729C DEF14215A DEF0014215A DE942729C DE 942729 C DE942729 C DE 942729C DE F14215 A DEF14215 A DE F14215A DE F0014215 A DEF0014215 A DE F0014215A DE 942729 C DE942729 C DE 942729C
- Authority
- DE
- Germany
- Prior art keywords
- pliers
- joint
- riveted
- scissors
- producing
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Herstellen eines # leichtgehenden, genieteten .und gehärteten Gelenkes, insbesondere für Zangen, Scheren u. dgl.The invention relates to a method for producing a # easy, riveted .und hardened joint, especially for pliers, scissors and the like.
Gemäß den bekannten Verfahren werden in die beiden ,Zangengelenke Gelenklöcher gebohrt und versenkt. Hierauf werden die Zangenhälften zusammengelegt, und der Niet wird eingepaßt. Anschließend wird der Niet gestaucht. Hierbei besteht der Nachteil, daß die Beweglichkeit der Zangenhälften nach dem Stauchen des Niets sehr schlecht ist, so. daß eine Nachbehandlung erforderlich ist, um die Beweglichkeit der Zangenhälften so weit zu erhöhen, daß die Zange leicht geschlossen und geöffnet werden kann. Die Nachbehandlung besteht üblicherweise darin, daß man durch Hammerschläge auf den gehärteten Niet dessen Sitz lockert, und gegebenenfalls ist es außerdem erforderlich, die Gängigkeit des Gelenkes durch Anwenden von Öl und Schmirgel zu verbessern. Diese Nacharbeiten sind-- besonders zeitraubendund teuer.According to the known method, pincer joints are in the two Joint holes drilled and countersunk. Then the two halves of the forceps are put together, and the rivet is fitted. The rivet is then compressed. Here there is the disadvantage that the mobility of the pliers halves after upsetting the rivet is very bad so. that post-treatment is required to maintain mobility Increase the clamp halves so that the clamp is easily closed and opened can be. The aftertreatment usually consists of striking with a hammer loosens its seat on the hardened rivet, and if necessary it is It is necessary to improve the mobility of the joint by using oil and emery to enhance. This rework is - especially time consuming and expensive.
Erfindungsgemäß werden die vorstehend erwähnten Nachteile dadurch vermieden, daß zwischen einen der beiden Nietköpfe und einem beweglichen Gelenkteil oder zwischen zwei bewegliche Gelenkteile eine verbrenn- oder schmelzbare Scheibe gelegt und das Gelenk nach dem Nieten auf die Verbrennungs- bzw. Schmelztemperatur des Scheibenwerkstoffes, vorzugsweise auf etwa 8oo° C, erhitzt und darauf gehärtet wird. Die Scheibe kann z. B. aus Papier bestehen, welches bei der Verbrennung Kohlenstaub hinterläßt, wodurch die Reibung zwischen den Gleitflächen besonders wirkungsvoll vermindert wird.According to the invention, the above-mentioned disadvantages are thereby eliminated avoided that between one of the two rivet heads and a movable joint part or a combustible or fusible disc between two movable joint parts placed and the joint after riveting to the combustion or melting temperature of the disc material, preferably to about 8oo ° C, heated and then hardened will. The disc can e.g. B. consist of paper, which is coal dust when burned leaves behind, making the friction between the sliding surfaces particularly effective is decreased.
Außerdem kann man die Scheibe auch noch mit Graphit behandeln, um die Reibung weiter herabzusetzen.The disc can also be treated with graphite in order to to further reduce friction.
Das Verfahren nach der Erfindung wird an Hand der Zeichnung wie folgt näher erläutert In der Zeichnung bezeichnen r und a die beiden Zangenhälften, g eine Zwischenlegscheibe aus Papier und q. den Niet für das Zusammennieten der Zangenhälften. Diese Teile werden in der vorstehend beschriebenen Weise miteinander vereinigt, worauf man nach dem Nieten das Gelenk auf die Verbrennungs-bzw: Schmelztemperatur des Scheibenwerkstoffes erhitzt und darauf härtet. .The method according to the invention is based on the drawing as follows explained in more detail In the drawing, r and a denote the two halves of the pliers, g a paper washer and q. the rivet for riveting the pliers halves together. These parts are combined with one another in the manner described above, whereupon after riveting the joint to the combustion or melting temperature of the disc material is heated and then hardens. .
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE942729X | 1953-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE942729C true DE942729C (en) | 1956-05-09 |
Family
ID=20396582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF14215A Expired DE942729C (en) | 1953-03-30 | 1954-03-20 | Process for producing a smooth, riveted and hardened joint, especially for pliers, scissors and the like. like |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE942729C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1180273B (en) * | 1959-12-30 | 1964-10-22 | Wilkinson Sword Ltd | Hand tools, in particular pruning shears |
DE102006024296A1 (en) * | 2006-05-24 | 2007-11-29 | Knipex-Werk C. Gustav Putsch Kg | tongs |
CN114632906A (en) * | 2022-03-22 | 2022-06-17 | 湖南精专自动化技术有限公司 | All-in-one is foldd in vice riveting |
-
1954
- 1954-03-20 DE DEF14215A patent/DE942729C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1180273B (en) * | 1959-12-30 | 1964-10-22 | Wilkinson Sword Ltd | Hand tools, in particular pruning shears |
DE102006024296A1 (en) * | 2006-05-24 | 2007-11-29 | Knipex-Werk C. Gustav Putsch Kg | tongs |
CN114632906A (en) * | 2022-03-22 | 2022-06-17 | 湖南精专自动化技术有限公司 | All-in-one is foldd in vice riveting |
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