JPH0434521U

JPH0434521U -

Info

Publication number: JPH0434521U
Application number: JP7651190U
Authority: JP
Priority date: 1990-07-20
Filing date: 1990-07-20
Publication date: 1992-03-23

Description

[Brief explanation of the drawing]

第１図乃至第４図はこの考案の一実施例を示す
もので、第１図はスリーブの内歯部を示す要部の
斜視図、第２図は変速機の同期噛合装置の概略構
成を示す縦断面図、第３図はスリーブ、シンクロ
ナイザリングおよび被同期歯車の各歯部の位置関
係を示す要部の縦断面図、第４図はスリーブの内
歯部を示す平面図、第５図乃至第７図は従来例を
示すもので、第５図は変速機の同期噛合装置の概
略構成を示す縦断面図、第６図はスリーブの内歯
部を示す要部の斜視図、第７図はスリーブの内歯
部を被同期歯車の外歯部の所定の噛合完了位置ま
で噛合させた状態を示す縦断面図である。２……スリーブ、２ｂ……内歯部、４……シン
クロナイザリング、４ａ，５ａ……外歯部、９…
…抜け防止用凹陥部、１１……ガイド部。 Figures 1 to 4 show an embodiment of this invention. Figure 1 is a perspective view of the main part showing the internal teeth of the sleeve, and Figure 2 is a schematic diagram of the synchronized meshing device of the transmission. FIG. 3 is a longitudinal sectional view of the main parts showing the positional relationship of the teeth of the sleeve, synchronizer ring, and synchronized gear; FIG. 4 is a plan view showing the internal teeth of the sleeve; FIG. 5 7 to 7 show conventional examples, FIG. 5 is a vertical cross-sectional view showing the schematic structure of a synchronized meshing device of a transmission, FIG. 6 is a perspective view of the main part showing the internal teeth of the sleeve, and FIG. The figure is a longitudinal sectional view showing a state in which the internal teeth of the sleeve are engaged with the external teeth of the synchronized gear up to a predetermined engagement completion position. 2...Sleeve, 2b...Internal tooth part, 4...Synchronizer ring, 4a, 5a...External tooth part, 9...
... Recessed part for preventing falling out, 11... Guide part.

Claims

[Claims for Utility Model Registration] A sleeve has a plurality of internal teeth formed on its inner circumferential surface, and external teeth for synchronous meshing that mesh with the internal teeth of the sleeve are formed on both sides of the sleeve. A synchronizer ring and a synchronized gear are respectively disposed, and as the sleeve moves in the axial direction, the internal teeth of the sleeve are sequentially engaged with the external teeth of the synchronizer ring and the external teeth of the synchronized gear. While the operation is performed, the external teeth of the synchronized gear are engaged with the internal teeth of the sleeve to a predetermined meshing completion position of the external teeth of the synchronized gear. In a synchronous meshing device for a transmission, a synchronous meshing device for a transmission is formed with a recessed part for preventing dislodgement, which prevents the part from moving in the direction of disengaging with the internal toothed part of the sleeve, on the tooth tip side of the side surface of the internal toothed part of the sleeve. a guide portion of the synchronizer ring that does not form the pull-out prevention recess on the dedendum side of a side surface of the internal tooth portion of the slube; A synchronous meshing device for a transmission, characterized in that an outer diameter of the sleeve is formed to correspond to a recessed portion for preventing the sleeve from coming off.