公开(公告)号：US06302381B1

公开(公告)日：2001-10-16

申请号：US09398619

申请日：1999-09-17

申请人： Michael John Roll

发明人： Michael John Roll

IPC分类号： B60S902

CPC分类号： B60D1/665 ,  B60D1/66 ,  B60S9/18

摘要： The swivel jack assembly is used with trailers to vertically position a trailer tongue for mounting onto a hitch of the towing vehicle. The swivel jack assembly includes a jack-mounting bracket welded to an outer housing of the jack, and a tongue-mounting bracket mounted onto the tongue portion of a trailer. The jack also includes a novel swivel mechanism for pivoting the mechanism in either an upright support position or a horizontal stowed position. A cup-shaped section of the jack-mounting bracket nests within a cup-shaped section of the tongue-mounting bracket. When in the upright position, the jack extends vertically and may be used to raise or lower the tongue and support the trailer. The swivel jack assembly keeps the trailer in a level position when the trailer is disengaged from the towing vehicle. The swivel jack assembly is pivotally mounted onto the trailer tongue such that they can be pivotally repositioned to a stowed position when not in use.

摘要翻译： 旋转千斤顶组件与拖车一起使用以垂直定位拖车舌头以安装在牵引车辆的搭接上。 旋转千斤顶组件包括焊接到千斤顶的外壳的千斤顶安装支架和安装在拖车的舌部上的舌安装支架。 千斤顶还包括一个新颖的旋转机构，用于将机构在直立支撑位置或水平收起位置中枢转。 插座安装支架的杯形部分嵌在舌头安装支架的杯形部分内。 当处于直立位置时，千斤顶垂直延伸，并可用于升高或降低舌头并支撑拖车。 当拖车与牵引车辆分离时，旋转千斤顶组件将拖车保持在水平位置。 旋转式千斤顶组件枢转地安装在拖车舌上，使得它们在不使用时可以枢转地重新定位到收起位置。

公开(公告)号：USRE43535E1

公开(公告)日：2012-07-24

申请号：US10682851

申请日：2003-10-08

申请人： Michael John Roll

发明人： Michael John Roll

IPC分类号： B60S9/08

CPC分类号： B60D1/665 ,  B60D1/66 ,  B60S9/18

摘要： The swivel jack assembly is used with trailers to vertically position a trailer tongue for mounting onto a hitch of the towing vehicle. The swivel jack assembly includes a jack-mounting bracket welded to an outer housing of the jack, and a tongue-mounting bracket mounted onto the tongue portion of a trailer. The jack also includes a novel swivel mechanism for pivoting the mechanism in either an upright support position or a horizontal stowed position. A cup-shaped section of the jack-mounting bracket nests within a cup-shaped section of the tongue-mounting bracket. When in the upright position, the jack extends vertically and may be used to raise or lower the tongue and support the trailer. The swivel jack assembly keeps the trailer in a level position when the trailer is disengaged from the towing vehicle. The swivel jack assembly is pivotally mounted onto the trailer tongue such that they can be pivotally repositioned to a stowed position when not in use.

摘要翻译： 旋转千斤顶组件与拖车一起使用以垂直定位拖车舌头以安装在牵引车辆的搭接上。 旋转千斤顶组件包括焊接到千斤顶的外壳的千斤顶安装支架和安装在拖车的舌部上的舌安装支架。 千斤顶还包括一个新颖的旋转机构，用于将机构在直立支撑位置或水平收起位置中枢转。 插座安装支架的杯形部分嵌在舌头安装支架的杯形部分内。 当处于直立位置时，千斤顶垂直延伸，并可用于升高或降低舌头并支撑拖车。 当拖车与牵引车辆分离时，旋转千斤顶组件将拖车保持在水平位置。 旋转式千斤顶组件枢转地安装在拖车舌上，使得它们在不使用时可以枢转地重新定位到收起位置。