JPH01118642U

JPH01118642U -

Info

Publication number: JPH01118642U
Application number: JP1425488U
Authority: JP
Priority date: 1988-02-04
Filing date: 1988-02-04
Publication date: 1989-08-10

Description

[Brief explanation of the drawing]

第１図は本考案に係る曲刃鋸の鋸身を示す全体
概略側面図、第２図はその一部を切り欠いて示す
拡大側面図、第３図は鋸身の拡大断面図、第４図
は第３図に対応する従来品の断面図である。１０……鋸身、１１……テーパー面、１２……
係止フツク、１３……上刃、１４……下刃（裏刃
）、Ｔ……材料厚み、Ｓ……鋸歯、Ｌ……刃渡り
長さ、Ｐ……間隔ピツチ、Ｍ……切断対象物、α
……ポール取付角度、β……仰角。 Fig. 1 is an overall schematic side view showing the saw blade of a curved saw according to the present invention, Fig. 2 is an enlarged side view showing a part thereof cut away, Fig. 3 is an enlarged sectional view of the saw blade, and Fig. The figure is a sectional view of a conventional product corresponding to FIG. 3. 10...Saw blade, 11...Tapered surface, 12...
Locking hook, 13...Top blade, 14...Lower blade (back blade), T...Material thickness, S...Sawtooth, L...Blade length, P...Spacing pitch, M...Object to be cut ,α
...Pole mounting angle, β...Elevation angle.

Claims

[Claims for Utility Model Registration] 1. A curved blade saw for high pruning, in which the imaginary line RR connecting the cutting edges of the saw blade S is curved into an arc shape with a constant radius of curvature over the entire length of the saw blade 10. By grinding both the left and right sides of the saw blade 10 substantially equally, the back side of the saw blade 10 is made thin and the cutting edge side is made thick, so that the left and right sides are flat as a whole. This curved blade saw for high pruning is characterized in that it is formed on a tapered surface 11 and has a chimney opening on the thick cutting edge side. 2. In a curved blade saw for high pruning, in which the imaginary line RR connecting the cutting edge of the saw blade S is curved into an arc shape with a constant radius of curvature over the entire blade length of the saw blade 10, the left and right sides of the saw blade 10 By grinding both side surfaces substantially equally, the back side of the saw blade 10 is made thin and the cutting edge side is made thick, forming both left and right side surfaces into an overall flat tapered surface 11. In addition to providing a bevel opening on the thick blade edge side, the intersection angle β between the center line XX of the radius of curvature and each back blade 14 forming the sawtooth S is determined by the saw blade 1.
This curved blade saw for high pruning is characterized in that the phase is sequentially changed so that the angle gradually decreases from the hand side to the tip side.