JPH0423866U

JPH0423866U -

Info

Publication number: JPH0423866U
Application number: JP10181690U
Authority: JP
Priority date: 1990-04-10
Filing date: 1990-09-27
Publication date: 1992-02-26
Anticipated expiration: 2005-05-24
Also published as: JPH0722517Y2

Description

[Brief explanation of the drawing]

第１図は本願請求項２記載のロツク装置を備え
たＶベルト式自動変速機の従動側部分の縦断面図
、第２図は第１図の矢視部分図、第３図はロツ
ク時のロツクピン部分の拡大縦断面図、第４図及
び第５図はそれぞれ請求項３記載のロツク装置の
縦断面拡大部分図、第６図は請求項１記載のロツ
ク装置において、ロツク部材として挾持部材を備
えたＶベルト式自動変速機の従動側部分の正面図
、第７図は第６図の矢視図、第８図は第６図の
ローラ部分の拡大図、第９図は第８図の矢視図
、第１０図は請求項１記載のロツク装置において
、ロツク部材として別の挾持部材を備えたＶベル
ト式自動変速機の従動側部分の正面図、第１１図
は第１０図の矢視図、第１２図は請求項４記
載のロツク装置に縦断面図、第１３図及び第１４
図はそれぞれ第１２図のロツク装置の各レンジ位
置でのロツク状態を示す縦断面拡大図、第１５図
は従来のＶベルト式自動変速機の全体縦断面図、
第１６図は第１５図のＰＴＯ用オイルポインプ部
分の縦断面図である。２……原動軸、３……従動
軸、１４……原動側固定シーブ、１５……原動側
可動シーブ、２２……従動側固定シーブ、２３…
…従動側可動シーブ、３８……軸芯孔、３９……
ロツク部材挿入孔、４１……プツシユロツド、４
１ａ……くさび面、４１ｂ，４１ｃ……テーパ面
、４２……ロツクピン（ロツク部材の一例）、４
３……リターンばね、７１……鋼球（ロツク部材
の一例）、７４，７５……凹部、７４ａ，７５ａ
……係合部、７７……ロツクピン（ロツク部材の
一例）。 FIG. 1 is a longitudinal cross-sectional view of the driven side portion of a V-belt type automatic transmission equipped with a locking device according to claim 2 of the present application, FIG. 2 is a partial view taken in the direction of the arrow in FIG. 1, and FIG. FIGS. 4 and 5 are enlarged vertical cross-sectional views of the lock pin portion, respectively, and FIG. 7 is a view taken in the direction of the arrow in FIG. 6, FIG. 8 is an enlarged view of the roller portion in FIG. 6, and FIG. 10 is a front view of the driven side portion of a V-belt type automatic transmission equipped with another clamping member as a locking member in the locking device according to claim 1, and FIG. 11 is a view taken by the arrow in FIG. A perspective view, FIG. 12 is a vertical sectional view, FIG. 13 and FIG.
The figures are an enlarged longitudinal cross-sectional view showing the locking state of the locking device in each range position in Fig. 12, and Fig. 15 is an overall vertical cross-sectional view of a conventional V-belt type automatic transmission.
FIG. 16 is a longitudinal sectional view of the PTO oil pump portion of FIG. 15. 2... Driving shaft, 3... Driven shaft, 14... Driving side fixed sheave, 15... Driving side movable sheave, 22... Driven side fixed sheave, 23...
...Driver side movable sheave, 38...Shaft center hole, 39...
Lock member insertion hole, 41...Push rod, 4
1a...Wedge surface, 41b, 41c...Tapered surface, 42...Lock pin (an example of a lock member), 4
3... Return spring, 71... Steel ball (an example of a locking member), 74, 75... Recess, 74a, 75a
. . . Engaging portion, 77 . . . Lock pin (an example of a lock member).

Claims

[Scope of claim for utility model registration] (1) In a V-belt automatic transmission in which the movable sheave moves axially toward the high-speed range as the engine speed increases, the movement of the movable sheave toward the high-speed range is restricted. A locking device for a V-belt type automatic transmission characterized by comprising a locking member that can be freely changed between a locking position and a release position that allows movement of a movable sheave toward a high-speed range. (2) In the locking device for a V-belt automatic transmission according to claim 1, a shaft center hole and a lock member insertion hole perpendicular to the shaft center hole are formed in the driven shaft, and a lock pin is inserted as a lock member into the insertion hole. The lock pin is movable between a lock position where it protrudes radially outward to restrict movement of the movable sheave toward the high-speed range and a release position where it is pulled into the insertion hole, and is also moved to the release position by a return spring. A push rod is inserted into the axial hole and connected to an appropriate operating device so as to be freely movable in the axial direction, and the push rod has a wedge that pushes the lock pin toward the lock position when the push rod moves. A locking device for a V-belt type automatic transmission characterized by forming a surface. (3) In the locking device for a V-belt automatic transmission according to claim 1, a shaft core hole and a plurality of locking member insertion holes perpendicular to the shaft center hole are formed in the driven shaft, and each insertion hole has a spherical surface at both ends. A recess is formed in the inner circumference of the movable sheave so that the lock member can be freely engaged with the recess. A push rod is movable between a lock position that restricts movement and a release position that is retracted into the insertion hole, and a push rod that is connected to an appropriate operating device and operated so as to be movable in the axial direction is inserted into the shaft hole. A locking device for a V-belt type automatic transmission, characterized in that the push rod is formed with a tapered surface that comes into contact with each lock member and pushes them toward the lock position as the push rod moves. (4) In the locking device for a V-belt automatic transmission according to claim 1, a plurality of step-like engaging portions that can freely engage with the locking member at the locking position are formed on the movable sheave side at intervals in the axial direction. A locking device for a V-belt automatic transmission, characterized in that a movable sheave can be selectively locked at two or more range positions within an automatic transmission range.