JPS6248503U

JPS6248503U -

Info

Publication number: JPS6248503U
Application number: JP14117185U
Authority: JP
Priority date: 1985-09-13
Filing date: 1985-09-13
Publication date: 1987-03-25
Anticipated expiration: 2000-09-13
Also published as: JPH065062Y2

Description

[Brief explanation of the drawing]

第１図および第２図は本考案にかかるカツテイ
ングエツジ配列構造の実施態様を示す端面図、第
３図は本考案が適用される小型チエンソーの駆動
モータ部を除く全体を示す斜視図、第４図は第３
図の分解組み立て斜視図である。第５図は一部を
破断した正面図、第６図は―線断面図、第７
図は本考案に係るカツテイングエツジによる切断
進行概念図で、第１刃から順に切削深さを大きく
しながら、切断が進行している状態を示す。第８
図は第７図の切削進行において、各刃の第１次切
断態様および第１刃の第２次切断態様（斜線部）
を示す切断概念模式図で、ａは第１図のカツテイ
ングエツジ配列例の場合を、ｂは第１図のカツテ
イングエツジ配列の最終刃の後続にセンターエツ
ジを追加した場合の切断概念模式図を示す。１……カツテイングセンターリンク、２……サ
イドリンク、３……ガイドバー、４……チエーン
スプロケツト、５……ガイド板、１１Ｒ〜１１Ｌ
……カツテイングエツジ。 1 and 2 are end views showing an embodiment of the cutting edge arrangement structure according to the present invention, FIG. 3 is a perspective view showing the entire small chain saw excluding the drive motor section to which the present invention is applied, and FIG. Figure 4 is the third
FIG. 3 is an exploded perspective view of the figure. Figure 5 is a partially cutaway front view, Figure 6 is a cross-sectional view taken along the - line, and Figure 7 is a partially cutaway front view.
The figure is a conceptual diagram of cutting progress by the cutting edge according to the present invention, and shows a state in which cutting progresses while increasing the cutting depth in order from the first blade. 8th
The figure shows the primary cutting mode of each blade and the secondary cutting mode of the first blade (shaded area) in the cutting progress of Fig. 7.
Fig. 1 is a schematic diagram of the cutting concept showing the example of the cutting edge arrangement in Fig. 1, and b is a schematic diagram of the cutting concept in the case of adding a center edge after the last blade of the cutting edge arrangement in Fig. 1. shows. 1...Cutting center link, 2...Side link, 3...Guide bar, 4...Chain sprocket, 5...Guide plate, 11R~11L
... Cutting edge.

Claims

[Scope of claim for utility model registration] A cutting center link 1 having a plurality of cutting edges, a pair of side links 2,
A saw chain C, which is pivotally connected with a pin via 2, is stretched endlessly over the groove on the circumference of the guide bar 3, and the chain sprocket 4 is engaged with the bottom recess of the center link 1 and driven to rotate. In the chainsaw M, the first blade of the plurality of cutting edges 11... on each of the cutting center links 1 starts from the center, and then gradually increases the cutting width from the second blade and moves 1 in opposite directions to the left and right. This cutting edge scavenging structure is characterized in that scavenging is carried out so that one cycle ends on a link, and the scavenging width on that one link clears the entire chain saw cutting width. The first blade of the cutting edge starts from the center, while the last blade ends at or near the center, and the cutting edge is divided so that the last blade of the front center link 1 is continuous with the first blade of the subsequent center link 1. A cutting edge array structure characterized by: