Highly efficient, anti-vibration, durable rotating file with variable pitch
OwnerHongjia Wanginventor
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a rotary burs with variable pitch. The file is made up of a cutter head (1) and a cutter handle (2). The cutter head is connected with the cutter handle. Multiple groups of cutter teeth are distributed on the cutter head. Each group of cutter teeth can be mixed cutter teeth, and can also be a single cutter tooth. The mixed cutter teeth are respectively a group of cutter teeth composed of a large tooth (3), a medium tooth (4) and a fine tooth (5) sequentially arranged, and can also be a group of mixed cutter teeth formed by combining any two of a large tooth, a medium tooth and a fine tooth.
Claims5
A rotary burs with variable pitch, comprising:
- a cutter head and a cutter handle;
- wherein the cutter head is connected with the cutter handle;
- multiple groups of cutter teeth are distributed on the cutter head;
- each group of the cutter teeth are spiraled on the circumference of the cutter head in the shape of a spiral line;
- each group of cutter teeth are mixed cutter teeth;
- the mixed cutter teeth comprise a large tooth, a medium tooth and a fine tooth;
- wherein the large tooth, the medium tooth and the fine tooth are arranged sequentially in an order of the large tooth-the medium tooth-the fine tooth or at intervals to form a group of the mixed cutter teeth;
- wherein a sequential order of the large tooth, the medium tooth and the fine tooth in each group of the mixed cutter teeth spiraling on the circumference of the cutter head is same;
- wherein the large tooth or the medium tooth or the fine tooth in each group of mixed cutter teeth is at least one;
- and
- an inclined angle of 0° to 90° is formed between each group of cutter teeth and the axial direction of the cutter handle, and the connecting line of each group of the cutter teeth is a straight line.
A rotary burs with variable pitch, comprising:
- a cutter head and a cutter handle;
- wherein the cutter head is connected with the cutter handle;
- multiple groups of cutter teeth are distributed on the cutter head;
- each group of the cutter teeth are spiraled on the circumference of the cutter head in the shape of a spiral line;
- each group of cutter teeth are mixed cutter teeth;
- the mixed cutter teeth comprise any two of a large tooth, a medium tooth and a fine tooth;
- wherein a sequential order of the large tooth, the medium tooth or the fine tooth in each group of the mixed cutter teeth spiraling on the circumference of the cutter head is same;
- wherein the large tooth or the medium tooth or the fine tooth in each group of mixed cutter teeth is at least one;
- and
- an inclined angle of 0° to 90° is formed between each group of cutter teeth and the axial direction of the cutter handle, and the connecting line of each group of the cutter teeth is a straight line.
Dependencies are inferred from the claim text.