EP0238616A1 - Verfahren zur herstellung eines werkzeuggriffes - Google Patents
Verfahren zur herstellung eines werkzeuggriffesInfo
- Publication number
- EP0238616A1 EP0238616A1 EP19860905994 EP86905994A EP0238616A1 EP 0238616 A1 EP0238616 A1 EP 0238616A1 EP 19860905994 EP19860905994 EP 19860905994 EP 86905994 A EP86905994 A EP 86905994A EP 0238616 A1 EP0238616 A1 EP 0238616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- bar stock
- tool handle
- projecting
- circular cross
- 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.)
- Withdrawn
Links
Classifications
-
- 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
Definitions
- the present invention relates to a method for manu ⁇ facturing a tool handle which is designed especially for holding a cutting tip of sintered carbide or the like and which has a substantially circular cross section throughout a considerable portion of its length, but which is provided with at least one part projecting from said cross section.
- Figs. 1-6 illustrate the first embodiment.
- Figs. 1, 3 and 5 are side views of three consecutive processing stages, while Figs. 2, 4 and 6 show the bar stock from one end at the respective processing stage.
- Figs. 7-12 show the second embodiment.
- Figs. 7 and 8 show the bar stock before processing, Fig. 7 being a side view and Fig. 8 an end view.
- Fig. 9 shows the swaging operation from the side
- Fig. 10 shows the bar stock from one end thereof after swaging.
- Fig. 11 is a side view of the finished tool handle, while Fig. 12 shows the same from one end thereof.
- Figs. 13 and 14 show the third embodiment in which the projecting part differs substantially from that of the two previous embodiments.
- Fig. 13 shows the end portion of the tool handle as seen from above, while Fig. 14 shows said portion as seen from the end.
- a bar stock having the circular cross section of the finished tool handle 6 is designated 1. Since the finished tool handle 6 should be provided with the projecting part 2 which is shown in Figs. 5 and 6 and which in a per se known manner should carry the cutting tip 3 , the bar stock end portion 4 whose initial position is indicated by dashed lines in Fig. 1, is so bent as to form the protruding portion 5. The portion 5 contains the dimensions of the projecting part 2. After bending, which is effected according to circumstances in the cold or the heated state, the bar stock 1 is so processed as to produce the tool handle 6 with the projecting part 2. As shown in Figs. 3 and
- the bent end portion 4 of the bar stock 1 is subjected to turning, whereby a projecting part 2' is formed.
- the part 2 ' has such a shape that it can be formed into a part 2 projecting either to the left or to the right, one of which is shown in Figs. 5 and 6. After a few milling operations, the tool handle 6 is given its final shape as shown in Figs. 5 and 6.
- the bar stock 11 in the second embodiment consists of a bar of circular cross section.
- the tool 12 consisting of a movable punch 13 and a die 14, that end of the bar 11 which is to be engaged by the tool
- Swaging is effected by moving the punch
- the tool handle 17 After annealing the tool handle 17 is given its final shape, as shown in Figs. 11 and 12, by turning and milling operations. In connection with the swaging, other parts 18 of the bar stock 11 can be given substantially their final shape, this minimizing the final operations.
- the projecting parts 2 and 16 are narrow and oriented at right angles to the axes of the tool handles 6 and 17. It goes without saying that the projecting parts may be oriented otherwise.
- the embodiment in Figs. 13 and 14 shows that the projecting part 21 may have a completely different shape.
- the end of the bar stock 22 is thus bent in substantially the same manner as in Fig. 1. The end is thereafter subjected to a milling operation, such that a seat 23 for the cutting tip 24 is formed in the finished tool handle 25.
Landscapes
- Forging (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8504464 | 1985-09-26 | ||
| SE8504464A SE8504464D0 (sv) | 1985-09-26 | 1985-09-26 | Forfarande vid tillverkning av verktygsskaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0238616A1 true EP0238616A1 (de) | 1987-09-30 |
Family
ID=20361531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19860905994 Withdrawn EP0238616A1 (de) | 1985-09-26 | 1986-09-26 | Verfahren zur herstellung eines werkzeuggriffes |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0238616A1 (de) |
| JP (1) | JPH0822452B2 (de) |
| SE (1) | SE8504464D0 (de) |
| WO (1) | WO1987001979A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1758780A (en) * | 1926-10-11 | 1930-05-13 | William F Bromm | Method of making stone-planer tools |
| FR1294209A (fr) * | 1961-04-11 | 1962-05-26 | Perfectionnements à la fabrication des outils pour machines-outils | |
| CH434937A (de) * | 1964-11-23 | 1967-04-30 | Streuli Hans | Vorrichtung zur Warmverformung von spanabhebenden Werkzeugen |
| US4000667A (en) * | 1975-05-12 | 1977-01-04 | The Valeron Corporation | Bending bar constructed by bending |
-
1985
- 1985-09-26 SE SE8504464A patent/SE8504464D0/xx unknown
-
1986
- 1986-09-26 EP EP19860905994 patent/EP0238616A1/de not_active Withdrawn
- 1986-09-26 WO PCT/SE1986/000432 patent/WO1987001979A1/en not_active Application Discontinuation
- 1986-09-26 JP JP61505334A patent/JPH0822452B2/ja not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8701979A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63501627A (ja) | 1988-06-23 |
| WO1987001979A1 (en) | 1987-04-09 |
| JPH0822452B2 (ja) | 1996-03-06 |
| SE8504464D0 (sv) | 1985-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19870424 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE GB IT LI SE |
|
| 17Q | First examination report despatched |
Effective date: 19880624 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19890627 |