JPH0374219U

JPH0374219U -

Info

Publication number: JPH0374219U
Application number: JP13519689U
Authority: JP
Priority date: 1989-11-20
Filing date: 1989-11-20
Publication date: 1991-07-25

Description

[Brief explanation of the drawing]

第１図は本考案の刈高さ調節装置を示す縦断面
図、第２図は第１図の要部を拡大して示した横断
面図、第３図は本考案装置が適用されたロータリ
モアの全体側面図、第４図は従来構造を示す第１
図同様の縦断面図である。６……刈取軸、８……椀状ソリ体、１５……支
持筒、１６……取付筒、１７……ロツクピン、１
７ａ……大径部、１７ｂ……小径部、１８……保
持ケース、１９……圧縮バネ。 Fig. 1 is a longitudinal cross-sectional view showing the cutting height adjusting device of the present invention, Fig. 2 is a cross-sectional view showing an enlarged main part of Fig. 1, and Fig. 3 is a rotary cutter to which the present invention device is applied. The overall side view of the mower, Figure 4 is the first diagram showing the conventional structure.
It is a longitudinal cross-sectional view similar to the figure. 6... Reaping shaft, 8... Bowl-shaped sled body, 15... Support tube, 16... Mounting tube, 17... Lock pin, 1
7a...large diameter part, 17b...small diameter part, 18...holding case, 19...compression spring.

Claims

[Scope of utility model registration request]

A mounting tube 16 erected at the center of the bowl-shaped sled body 8 is slidably fitted onto a support tube 15 rotatably attached to the downward extension of the reaping shaft 6, The height of the bowl-shaped sled body 8 is adjusted by sliding it vertically on the support tube 15 to the required position, and fixing it by inserting the lock pin 17 into the groove opened across both tubes 16 and 15. In a rotary mower whose height can be adjusted, the lock pin 17 has a step in which a large diameter portion 17a that locks both cylinders 16 and 15 and a small diameter portion 17b that does not lock both cylinders 16 and 15 are arranged in series in the longitudinal direction. The lock pin 1 is formed into a lock pin.
7 is slidably fitted and held in a holding case 18 horizontally fixed to the outer periphery of the mounting tube 16, and a compressor is normally interposed between the holding case 18 and the end of the lock pin 17. The spring 19 is elastically biased to maintain the large diameter portion 17a in a position where it straddles and engages both cylinders 16 and 15, and when the lock pin 17 is pushed in against the compression spring 19, the large diameter portion 17a engages both cylinders. 1. A cutting height adjusting device for a rotary mower, characterized in that locks 16 and 15 are released.