公开(公告)号：US20050039309A1

公开(公告)日：2005-02-24

申请号：US10901255

申请日：2004-07-27

申请人： John McCauley ,  Randolph Hyde

发明人： John McCauley ,  Randolph Hyde

IPC分类号： B60D1/18 ,  B60D1/28 ,  B60D1/38 ,  B60D1/58 ,  A44B1/04 ,  A44B11/25 ,  A44B15/00 ,  B60F1/00

CPC分类号： B60D1/18 ,  B60D1/28 ,  B60D1/38 ,  B60D1/58 ,  Y10T24/312

摘要： A safety chain assembly 24 for securing a towed agricultural vehicle (not shown) to a towing vehicle 21. The safety chain assembly 24 includes a clevis hook 54 having two pin receiving openings 55; a latch member 60 having an attachment opening 62; a spring pin assembly 56, and an elongated load bearing device 36 having a securing opening 37. In the preferred embodiment shown in the drawings the elongated load bearing device 36 is a chain, but it will be appreciated that it could also be a wire rope or other load bearing device having a securing opening 37. Similarly, the preferred spring pin assembly 56 includes a biasing mechanism such as a spring 64 and a washer 66; a retention member 70 and a pin 72; the pin 72 having an annular groove 84, a head 85 and first and second ends 87, 89; the annular groove 84 being located proximate the first end 87 and the head 85 being located proximate the second end 89. The elongated load bearing device 36, preferably the chain 36, and the latch member 60 are interconnected to the clevis hook 54 by the spring pin assembly 56; The retention member is preferably selected from the group consisting of a spring washer and a snap ring and is preferably a snap ring. Methods of attaching and securing the safety chain assembly are also disclosed.

摘要翻译： 用于将牵引的农用车辆（未示出）固定到拖车21的安全链组件24.安全链组件24包括具有两个销接收开口55的U形夹钩54; 具有附接开口62的闩锁构件60; 弹簧销组件56和具有固定开口37的细长承载装置36.在附图中所示的优选实施例中，细长承载装置36是链条，但是应当理解，它也可以是钢丝绳 或具有固定开口37的其它承载装置。类似地，优选的弹簧销组件56包括偏置机构，例如弹簧64和垫圈66; 保持构件70和销72; 销72具有环形槽84，头部85以及第一和第二端部87,89; 环形槽84位于第一端87附近并且头部85位于第二端89附近。细长承载装置36，优选地链36和闩锁构件60通过弹簧互连到U形夹钩54 销组件56; 保持构件优选地选自弹簧垫圈和卡环，并且优选地是卡环。 还公开了安全链组件的安装和固定方法。