公开(公告)号：WO2014089220A1

公开(公告)日：2014-06-12

申请号：PCT/US2013/073134

申请日：2013-12-04

Applicant: JOST INTERNATIONAL CORP.

Inventor： OESTREICH, Brian E. ,  NORDLING, Kyle William ,  MADSEN, Ben ,  JOHNS, Steven ,  GUAN, Minglei

IPC: B60S9/04

CPC classification number: B60S9/08 ,  F16H2718/18 ,  Y10T74/18784

Abstract: A multi-speed landing gear for a trailer includes a housing and a telescoping leg connected with the housing, and a gear assembly for extending and retracting the leg. The gear assembly includes a ring gear arranged to rotate about an axis transverse to the telescopic orientation of the leg member with the gear assembly configured to operate in a high speed setting and a low speed setting and automatically shift between the high and low speed settings, with an actuator selectively preventing or allowing rotation of the ring gear to enable the gear assembly to operate in the low speed setting or the high speed setting. The actuator may be connected to a shift member, with the actuator causing the shift member to selectively prevent or allow rotation of the ring gear by way of engagement of the shift member with the ring gear.

Abstract translation: 用于拖车的多速起落架包括壳体和与壳体连接的伸缩腿，以及用于延伸和缩回腿部的齿轮组件。 齿轮组件包括齿圈，该齿圈布置成围绕横向于腿部构件的可伸缩取向的轴线旋转，齿轮组件构造成在高速设置和低速设置中运行，并且在高速和低速设置之间自动切换， 致动器选择性地防止或允许齿圈的旋转，以使得齿轮组件能够在低速设置或高速设置中操作。 致动器可以连接到换挡构件，致动器致使换挡构件通过换挡构件与齿圈的接合来选择性地防止或允许环形齿轮的旋转。