Metal tools and implements – making – Blank or process – Hand tool
Reexamination Certificate
1999-10-18
2001-11-20
Payer, Hwei-Slu (Department: 3724)
Metal tools and implements, making
Blank or process
Hand tool
C076S101100, C081S427500
Reexamination Certificate
active
06318212
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method of anufacturing blanks for metallic components of pliers comprising a jaw.
2. Description of the Related Art
Current techniques for manufacturing metallic components of pliers, namely the gripping jaws of pairs of multi-grip pliers and the working heads and/or the arms of the other types of pliers, entail the managing of an expensive and complex array of tooling. This is because these known techniques involve forging or cutting/pressing flat sheet.
SUMMARY OF THE INVENTION
The object of the invention is to allow broad ranges of pliers to be produced on an industrial scale with a smaller amount of tooling, and therefore in a particularly economical way.
To this end, the manufacturing method according to the invention is characterized in that the outline of each blank is cut out from a length of profile of shape of variable thickness, the cross section of which corresponds to at least one cross section of the blank.
Another subject of the invention is a method of manufacturing half a pair of pliers. According to a first alternative form, a blank which has a pliers arm core is produced in the way described above, and a pliers handgrip is overmoulded onto this core. Advantageously, in this case, the overmoulding mould is closed onto an adapter ring slipped over the arm core.
According to a second alternative form, a blank which has a pliers arm core is produced in the way described above, the branch core is introduced with clearance into a cavity of a preformed handgrip, and the remaining empty space in this cavity is filled with a filling substance. The said cavity may especially open to the front and to the side.
A further subject of the invention is a shaped section piece intended for implementing a method as defined above.
REFERENCES:
patent: 2825248 (1958-03-01), Ahlbin
patent: 3114973 (1963-12-01), Kennedy
patent: 4024634 (1977-05-01), Linden
patent: 5253557 (1993-10-01), Dolak
patent: 5528834 (1996-06-01), Seber et al.
patent: 5551323 (1996-09-01), Beere et al.
patent: 5809853 (1998-09-01), Hudson
patent: 0570340 (1993-11-01), None
patent: 0 538 632 (1993-04-01), None
patent: 1054724 (1954-02-01), None
patent: 2622657 (1989-05-01), None
patent: 213812 (1924-04-01), None
Patent Abstract of Japan vol. 009, No. 215 (m-409) Sep. 3, 1985 Riken Khaki Kogyo KK Apr. 30, 1985 JP 60 076235A.
Bost Garnache Industries
Dowell & Dowell , P.C.
Payer Hwei-Slu
LandOfFree
Method for making blanks for parts of pliers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making blanks for parts of pliers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making blanks for parts of pliers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2580213