WIPO logo
Mobile | Deutsch | English | Español | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Recherche dans les collections de brevets nationales et internationales
World Intellectual Property Organization
Recherche
 
Options de navigation
 
Traduction
 
Options
 
Quoi de neuf
 
Connexion
 
Aide
 
maximize
Traduction automatique
1. (WO2002078919) SCIE A CHAINE A AFFUTAGE AUTOMATIQUE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

What is claimed is:

1. A saw chain cutting link comprising:
a body portion having a cutting portion extended upwardly from the body portion;
said cutting portion defining a planar plate having first and second side surfaces separated by a plate thickness, the plate thickness defining a leading edge surface and a top edge surface;
said leading edge surface and said top edge surface intersecting to form a first line edge and said first side surface and said top edge surface intersecting to form a second line edge;
a portion of said cutter portion including said first line edge and a portion of said second line edge formed into a curve directed toward the second side surface to form said portion of the second line edge into a leading cutting edge of the cutting link.

2. A saw chain cutting link as defined in Claim 1 wherein the first line edge and the second line edge intersect to form a point, said point forming the forward most point of the leading cutting edge of the cutting link.

3. A saw chain cutting link as defined in Claim 2 wherein said top edge surface and the front edge surface are angled downwardly and rearwardly to accommodate top sharpening of the leading cutting edge of the cutting link.

4. A saw chain including a plurality of cutting links as defined in Claim 3, said saw chain assembled into pivotally connected side links and center links, said cutting links being center links of the saw chain and the successive cutting links in the saw chain having cutting edges directed to one side and then the other to encompass the width of the saw chain.

5. A saw chain cutting link as defined in Claim 1 wherein said body portion defines an elongate plane, said first line edge shaped to produce a side cutting edge substantially parallel to said plane, and said leading cutting edge at an angle with said elongate plane within the range of about 40 degrees to 70 degrees.

6. A method of producing a cutting link which comprises: forming a planar cutting link blank defining a plane, said blank having a body portion and an upwardly directed cutter portion, said cutter portion having a first side surface and a second side surface and said cutting link blank having a thickness that provides a leading edge surface and a top edge surface that intersect to define a first line edge, said top edge surface and first side surface intersecting to define a second line edge;
laterally twisting a leading end of said cutter portion out of said plane including said first line edge and a portion of said second line edge, said portion of said second line edge thereby providing a leading cutting edge of the cutting link.