公开(公告)号：US08419038B2

公开(公告)日：2013-04-16

申请号：US13135578

申请日：2011-07-08

申请人： Darrel J. Burns ,  Brigitte Paula Strecker Burns

发明人： Darrel J. Burns ,  Brigitte Paula Strecker Burns

IPC分类号： B62D53/08

CPC分类号： B60D1/28 ,  B60D1/015

摘要： A fifth wheel trailer hitch with locking mechanism that includes a pin that extends axially from a pivotal mounting of a platform of a trailer tow bar. The pin is preferably cylindrical and is grooved circumferentially adjacent to its bottom end for fitting into an a key way forward end lip formed in a mounting plate that is attached to a truck bed for prohibiting the pin from lifting from the key way. The pin includes a plug that, by turning a cam rod journaled through the pin, will extend or retract axially from a pin center opening to fit into a plug hole formed in the mounting plate in the center of the key way forward end, preventing, when extended, the pin from sliding therefrom. Which plug, extended by cam rod turning, is a primary lock, and the invention further includes straight rods, as secondary plug locks, arranged for travel through lateral holes in the pin into the pin open center to fit into holes in the plug side when the plug is extended by the primary lock, and further includes as a safety lock, a plate that is fitted into the key way depression to brace the pin in the key way forward end.

公开(公告)号：US20130009386A1

公开(公告)日：2013-01-10

申请号：US13135578

申请日：2011-07-08

申请人： Darrel J. Burns ,  Brigitte Paula Strecker Burns

发明人： Darrel J. Burns ,  Brigitte Paula Strecker Burns

IPC分类号： B60D1/58

CPC分类号： B60D1/28 ,  B60D1/015

摘要： A fifth wheel trailer hitch with locking mechanism that includes a pin that extends axially from a pivotal mounting of a platform of a trailer tow bar. The pin is preferably cylindrical and is grooved circumferentially adjacent to its bottom end for fitting into an a key way forward end lip formed in a mounting plate that is attached to a truck bed for prohibiting the pin from lifting from the key way. The pin includes a plug that, by turning a cam rod journaled through the pin, will extend or retract axially from a pin center opening to fit into a plug hole formed in the mounting plate in the center of the key way forward end, preventing, when extended, the pin from sliding therefrom. Which plug, extended by cam rod turning, is a primary lock, and the invention further includes straight rods, as secondary plug locks, arranged for travel through lateral holes in the pin into the pin open center to fit into holes in the plug side when the plug is extended by the primary lock, and further includes as a safety lock, a plate that is fitted into the key way depression to brace the pin in the key way forward end.

摘要翻译： 具有锁定机构的第五轮拖车包括从拖车拖杆的平台的枢转安装件轴向延伸的销。 销优选是圆柱形的，并且在其底端周向周向地开槽，用于装配成形成在安装板上的钥匙方式的前端唇缘，该安装板附接到卡车车厢以禁止销从钥匙方向抬起。 销包括一个插头，通过转动通过销轴颈的凸轮杆，将从销中心开口轴向地延伸或缩回以装配到形成在钥匙方向前端中心的安装板中的塞孔中， 当延伸时，销从其滑动。 通过凸轮杆转动延伸的插头是主锁，并且本发明还包括直杆，作为辅助插销锁，布置成通过销中的侧孔行进到销开口中心，以装配在插头侧的孔中， 插头由主锁延伸，并进一步包括作为安全锁，安装在钥匙方向凹槽中的板，以在钥匙方向前端支撑销。

公开(公告)号：US5058915A

公开(公告)日：1991-10-22

申请号：US580173

申请日：1990-09-07

申请人： Darrel J. Burns

发明人： Darrel J. Burns

IPC分类号： B60D1/00 ,  B62D53/08

CPC分类号： B60D1/00 ,  B62D53/0828 ,  Y10S280/901 ,  Y10T403/4668 ,  Y10T403/581 ,  Y10T403/7015

摘要： A trailer hitch including a pin that extends axially from a pivotal mounting by a universal joint of a rocking or tilting platform of a trailer draw or towbar. The pin is preferably cylindrical and is grooved circumferentially for fitting into a wide head end of a keyhole or keyway slot formed in a mounting plate attached to a truck bed. The keyway forward circular end includes a flange therearound that fits into the cylindrical pin groove, prohibiting the pin from lifting from the keyway. To complete the locking of the pin to mounting plate, either the pin includes a plug for extending axially into a hole formed in the mounting plate in the center of the keyway forward end, or a brace plate is installed in a keyway large rearward end, resting against the pin prohibiting the pin for being slid therefrom. Which plug is extended or withdrawn by turning a locking or camming rod journaled across the pin, which locking or camming rod is spring biased to a plug extended attitude.

摘要翻译： 拖车牵引包括一个销，该销通过拖车牵引或牵引杆的摇摆或倾斜平台的万向接头从枢转安装件轴向延伸。 该销优选是圆柱形的，并且周向地开槽，用于装配到形成在安装在卡车底盘上的安装板中的键孔或键槽槽的宽头端。 键槽前端圆形端部包括一个装在圆柱销槽中的凸缘，禁止销从键槽上抬起。 为了完成将销锁固定到安装板上，该销包括用于沿键槽前端的中心轴向延伸形成在安装板上的孔的插头，或者在键槽大的后端安装支撑板， 靠在销上以阻止销从其上滑动。 通过转动锁定或凸轮转动的销钉延伸或拉出哪个插头，该锁定或凸轮杆被弹簧偏置到插头延伸的姿态。