GB1451728A - Landless inner cutter for an electric shaver - Google Patents
Landless inner cutter for an electric shaverInfo
- Publication number
- GB1451728A GB1451728A GB4313574A GB4313574A GB1451728A GB 1451728 A GB1451728 A GB 1451728A GB 4313574 A GB4313574 A GB 4313574A GB 4313574 A GB4313574 A GB 4313574A GB 1451728 A GB1451728 A GB 1451728A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- edge
- archlike
- plane
- cutting
- 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
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/60—Making other particular articles cutlery wares; garden tools or the like
- B21D53/64—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades
- B21D53/645—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades safety razor blades
-
- 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
- B21D53/00—Making other particular articles
- B21D53/60—Making other particular articles cutlery wares; garden tools or the like
- B21D53/64—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
- B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
- B26B19/044—Manufacture and assembly of cutter blocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Dry Shavers And Clippers (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
1451728 Dry shavers SPERRY RAND CORP 4 Oct 1974 [8 Nov 1973] 43135/74 Heading B4B [Also in Division B3] A method of making a landless inner cutter for an electric shaver comprises removing material from a strip 44 of metallic material to provide the strip with a first transverse archlike edge 70, Fig. 7, in the plane of the strip and between side edges of it, cutting the strip to form a second transverse archlike edge 70A in the plane of the strip, the edges 70, 70A, forming an arch-shaped blade section 18 in the strip, bending the blade section so as to move it substantially normal to the plane of the strip and repeating the cutting and bending steps. The strip 44 is formed with leg portions 22 along either edge and the blade sections 18 are formed in the flat central portion of it. A reciprocating tool 45 cuts the successive archlike edges, 70, 70A in co-operation with a die 46. The tool is formed with an arch-shaped surface 51 and a slanting cutting and bending surface 54 and the die is provided with a retractable insert 49 about which the blade sections are bent. The initial archlike edge 70 is formed either by the tool 45, in which case an area bounded by the edge 70, a tab 64 and side portions 74A, is cut and bent and subsequently removed or it may be formed, e.g. by grinding. The formed strip is cut to length and a supporting portion 14 is engaged with the blade sections 18, for welding thereto.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US414175A US3858461A (en) | 1973-11-08 | 1973-11-08 | Shaver inner cutter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1451728A true GB1451728A (en) | 1976-10-06 |
Family
ID=23640283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4313574A Expired GB1451728A (en) | 1973-11-08 | 1974-10-04 | Landless inner cutter for an electric shaver |
Country Status (9)
Country | Link |
---|---|
US (1) | US3858461A (en) |
JP (1) | JPS5741266B2 (en) |
AT (1) | AT333620B (en) |
CA (1) | CA1016735A (en) |
CH (1) | CH578920A5 (en) |
DE (1) | DE2452859A1 (en) |
FR (1) | FR2250587B1 (en) |
GB (1) | GB1451728A (en) |
NL (1) | NL184460C (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3858461A (en) * | 1973-11-08 | 1975-01-07 | Sperry Rand Corp | Shaver inner cutter |
JPS52132284U (en) * | 1976-03-30 | 1977-10-07 | ||
JPS581947B2 (en) * | 1977-03-19 | 1983-01-13 | 泉精密工業株式会社 | Electric razor inner blade manufacturing method |
JP3237868B2 (en) * | 1991-07-15 | 2001-12-10 | 松下電工株式会社 | Manufacturing method of inner blade of reciprocating electric razor |
JP2005198795A (en) * | 2004-01-15 | 2005-07-28 | Izumi Products Co | Method of manufacturing cutter of reciprocating type electric razor and cutter |
GB2416508A (en) * | 2004-07-23 | 2006-02-01 | Gillette Man Inc | Sharp undercutter and undercutter fabrication |
DE102005010244A1 (en) * | 2005-03-05 | 2006-09-07 | Braun Gmbh | Shearing system for an electric hair trimmer |
JP4225329B2 (en) * | 2006-07-21 | 2009-02-18 | パナソニック電工株式会社 | Electric razor |
JP4595968B2 (en) * | 2007-07-12 | 2010-12-08 | パナソニック電工株式会社 | Reciprocating electric razor inner blade |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1383047A (en) * | 1919-04-21 | 1921-06-28 | Boston Pencil Pointer Company | Method of making cutters for pencil-sharpeners |
US2223768A (en) * | 1938-01-11 | 1940-12-03 | Martin Brothers Electric Compa | Method of making razor heads |
US3016600A (en) * | 1953-08-25 | 1962-01-16 | Stanley Works | Filing tool |
AT181527B (en) * | 1953-12-17 | 1955-03-25 | Gerhard Dipl Ing Heyek | Lower blade for the shaving head of dry razors |
AT228605B (en) * | 1961-06-16 | 1963-07-25 | Method and die for the production of shaving foils for dry shavers and shaving foils produced therefrom | |
BE625321A (en) * | 1961-11-27 | |||
US3290917A (en) * | 1963-07-24 | 1966-12-13 | Stanley Works | Method of producing a cutting tool |
DE1728376A1 (en) * | 1965-07-29 | 1971-12-30 | Payer Lux | Knife block for dry shavers |
US3858461A (en) * | 1973-11-08 | 1975-01-07 | Sperry Rand Corp | Shaver inner cutter |
-
1973
- 1973-11-08 US US414175A patent/US3858461A/en not_active Expired - Lifetime
-
1974
- 1974-09-24 CA CA209,863A patent/CA1016735A/en not_active Expired
- 1974-09-25 AT AT773474A patent/AT333620B/en not_active IP Right Cessation
- 1974-10-04 GB GB4313574A patent/GB1451728A/en not_active Expired
- 1974-11-04 FR FR7436561A patent/FR2250587B1/fr not_active Expired
- 1974-11-05 NL NLAANVRAGE7414423,A patent/NL184460C/en not_active IP Right Cessation
- 1974-11-05 DE DE19742452859 patent/DE2452859A1/en active Granted
- 1974-11-07 CH CH1488374A patent/CH578920A5/xx not_active IP Right Cessation
- 1974-11-08 JP JP49129485A patent/JPS5741266B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5078464A (en) | 1975-06-26 |
NL184460B (en) | 1989-03-01 |
AU7402974A (en) | 1976-04-08 |
NL7414423A (en) | 1975-05-12 |
DE2452859A1 (en) | 1975-05-15 |
JPS5741266B2 (en) | 1982-09-02 |
FR2250587B1 (en) | 1980-03-07 |
US3858461A (en) | 1975-01-07 |
NL184460C (en) | 1989-08-01 |
ATA773474A (en) | 1976-03-15 |
CA1016735A (en) | 1977-09-06 |
FR2250587A1 (en) | 1975-06-06 |
AT333620B (en) | 1976-12-10 |
DE2452859C2 (en) | 1987-07-16 |
CH578920A5 (en) | 1976-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19931004 |