JPS6446565U

JPS6446565U -

Info

Publication number: JPS6446565U
Application number: JP14217987U
Authority: JP
Priority date: 1987-09-17
Filing date: 1987-09-17
Publication date: 1989-03-22

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の船外機の前・後進切
換機構を示す縦断面図、第２図は第１図のイ部拡
大図、第３図は一般的な切換機構を示す縦断面図
、第４図は従来の切換機構の要部拡大図である。１……ドライブシヤフト、３……駆動ギヤ、４
……前進従動ギヤ、４Ｃ……前進駆動用爪係合部
、５……後進従動ギヤ、５Ｃ……後進駆動用爪係
合部、８……プロペラシヤフト、９……クラツチ
部材、９Ａ……前進駆動用爪、９Ｂ……後進駆動
用爪、１１……プツシユロツド、１１Ｃ……カム
係合部、１２……バネ、１３……プツシユロツド
駆動カム、１３Ａ……カム面、１３Ｅ……プツシ
ユロツド変位面部、１３Ｈ……節度感付与部、１
４……操作ロツド。 Fig. 1 is a longitudinal sectional view showing the forward/reverse switching mechanism of an outboard motor according to an embodiment of the present invention, Fig. 2 is an enlarged view of the section A in Fig. 1, and Fig. 3 is a longitudinal sectional view showing a general switching mechanism. The plan view and FIG. 4 are enlarged views of main parts of a conventional switching mechanism. 1... Drive shaft, 3... Drive gear, 4
... Forward driven gear, 4C... Forward drive pawl engaging portion, 5... Reverse driven gear, 5C... Reverse drive pawl engagement portion, 8... Propeller shaft, 9... Clutch member, 9A... Forward drive claw, 9B...Reverse drive claw, 11...Push rod, 11C...Cam engaging portion, 12...Spring, 13...Push rod drive cam, 13A...Cam surface, 13E...Push rod displacement surface portion , 13H... moderation imparting section, 1
4... Operation rod.

Claims

[Claims for Utility Model Registration] A drive gear fixed to the tip of a drive shaft, a forward driven gear that is always in mesh with the drive gear and rotatably fitted on the propeller shaft, and a forward driven gear that is always in mesh with the drive gear and rotatably fitted in the propeller shaft. a reverse driven gear rotatably fitted to the propeller shaft; a clutch member fitted to the outer periphery of the propeller shaft in a portion between the forward driven gear and the reverse driven gear so as to be movable in the axial direction thereof; a push rod that is arranged to be reciprocally movable in the axial direction of the propeller shaft and that reciprocates the clutch member in the axial direction of the propeller shaft; a push rod drive cam that reciprocates the push rod in the axial direction of the propeller shaft; The clutch member includes a spring for pressing the push rod against a cam surface of the push rod drive cam, and an operating rod whose tip is fixed to the push rod drive cam, and a forward drive pawl is provided on the forward driven gear side of the clutch member. , a reverse driving pawl is provided on the reverse driven gear side of the clutch member, and a forward driving pawl engaging portion is provided on a portion of the forward driven gear opposite to the forward driving pawl of the clutch member. A reverse drive pawl engaging portion is provided on a portion of the reverse driven gear that faces the reverse drive pawl of the clutch member, and a push rod displacement portion is provided on the cam surface of the push rod drive cam to reciprocate the push rod. In the forward/reverse switching mechanism of an outboard motor in which a surface is formed, the forward drive pawl is engaged with the forward drive pawl engaging portion by displacing the push rod against the spring force of the spring. Alternatively, before the reverse drive pawl is engaged with the reverse drive pawl engaging portion, a concave or convex detent feeling imparting portion that gives a detent feeling to the operation of the push rod drive cam is arranged on the push rod displacement surface portion of the push rod drive cam. A forward/reverse switching mechanism for an outboard motor, characterized by being formed in a.