JPS639626U

JPS639626U -

Info

Publication number: JPS639626U
Application number: JP10196786U
Authority: JP
Priority date: 1986-07-02
Filing date: 1986-07-02
Publication date: 1988-01-22
Also published as: JPH0244132Y2

Description

[Brief explanation of the drawing]

図面は本考案に係るギアートランスミツシヨン
の操作部構造の実施例を示し、第１図はボールデ
テントの係合状態を示す一部切欠き断面図、第２
図はミツシヨンの断面図、第３図は動力取出し軸
配設部の断面図、第４図はシフトフオーク操作部
の一部切欠き背面図、第５図は歩行型耕耘機全体
の側面図である。２０……第１伝動ギアー、２０Ａ……第１伝動
位置、２１……第２伝動ギアー、２１Ａ……第２
伝動位置、２２……シフトギアー、２３……シフ
ター、２６……シフター支軸、２６Ａ……第１支
軸部分、２６Ｂ……第２支軸部分、２６Ｃ……第
３支軸部分、３３……変速操作レバー、３７……
スプリング、３８……ボールデテント、３９……
第１箇所、４０……第２箇所、Ｎ……中立位置。 The drawings show an embodiment of the structure of the operation part of the gear transmission according to the present invention, and FIG. 1 is a partially cutaway sectional view showing the engaged state of the ball detent, and FIG.
The figure is a cross-sectional view of the transmission, Figure 3 is a cross-sectional view of the power take-off shaft installation part, Figure 4 is a partially cutaway rear view of the shift fork operating part, and Figure 5 is a side view of the entire walk-behind cultivator. be. 20...First transmission gear, 20A...First transmission position, 21...Second transmission gear, 21A...Second
Transmission position, 22...Shift gear, 23...Shifter, 26...Shifter spindle, 26A...First spindle portion, 26B...Second spindle portion, 26C...Third spindle portion, 33... Gear shift operation lever, 37...
Spring, 38... Ball detent, 39...
1st location, 40...2nd location, N...neutral position.

Claims

[Scope of utility model registration request]

The first transmission gear 20 and the second transmission gear 21 to which the shift gear 22 is selectively engaged, and a sliding motion for operating the shift gear 22, configured to change speed while one of the shift gear 22 is being driven. The spring 37 for slidingly biasing the shifter 23 is moved to the first transmission position 20A where the shift gear 22 engages the first transmission gear 20.
and a second transmission position 21 where the shift gear 22 engages with the second transmission gear 21.
The shifter 23 is provided in a state in which the shifter 23
A gear transmission operation part structure in which a ball detent 38 for positioning is attached to the shifter 23 in a state where it engages with the shifter support shaft 26 on which the shifter 23 is fitted, the shifter support shaft 26, when the shifter 23 is at the neutral position N, the first support shaft portion 26A corresponds to the center of the ball detent 38, and when the shifter 23 is at the first transmission position 20A, the ball detent is 1st location 39 where 38 engages
In the second support shaft portion 26B, the second support shaft portion 26B of the shifter support shaft 26 is configured such that the shifter 23 is slidably biased to the first transmission position 20A by the protruding force of the ball detent 38. When the shifter 23 is in the second transmission position 21A from the first support shaft portion 26A, the ball detent 38
The third support shaft portion 26 extends over the second location 40 where the
At C, the shifter 23 is moved to the second transmission position 2 by the protruding force of the ball detent 38.
1A so that the second support shaft portion 2 is slidably biased.
6B and the third support shaft portion 26C are each formed as an inclined portion, and the outer diameter of the first support shaft portion 26A at the intermediate portion in the direction of the shifter support shaft center is set such that the shifter 23 is attached to the shifter support shaft 26. The first support shaft portion 26 is approximately equal to the inner diameter of the portion.
The structure of the gear transmission operating section formed by A.