公开(公告)号：US4050603A

公开(公告)日：1977-09-27

申请号：US729967

申请日：1976-10-06

Applicant: Robert M. Harris ,  Gene F. Mills ,  David T. Shaffer

Inventor： Robert M. Harris ,  Gene F. Mills ,  David T. Shaffer

IPC: H02G3/12 ,  H02G3/08

CPC classification number: H02G3/126 ,  Y10S248/906

Abstract: A clamp for securing an adjustable bar hanger to a molded thermosetting plastic electrical wiring box. The clamp includes a generally U-shaped portion having a deformable tab directed into the region defined by the U-shaped portion and a pair of side flanges integral with and on opposite sides of the U-shaped portion. A bar hanger is positioned within the U-shaped portion of the clamp and the wiring box is oriented with respect to the clamp and bar hanger assembly so that the bar hanger is captured between the clamp and a rear wall of the wiring box and the clamp is spaced a slight distance from the rear wall of the wiring box. Screws are then inserted through openings provided in the rear wall of the wiring box and threaded into corresponding threaded openings provided in the flanges of the clamp. As the screws advance into the openings in the flanges, the clamp is drawn toward the wiring box, causing the deformable tab of the U-shaped portion to deform and move in a direction away from the wiring box and toward the U-shaped portion of the clamp. The deformation of the tab serves to distribute the torque or energy applied to the screws throughout the entire clamp in a manner so as to prevent damage to the wiring box, such as cracking or shattering.

Abstract translation: 用于将可调节棒衣架固定到模制的热固性塑料电气接线盒的夹具。 夹具包括大致U形的部分，其具有可变形的突片，引导到由U形部分限定的区域和与U形部分相反的两侧成一体的一对侧凸缘。 一个棒衣架位于夹具的U形部分内，并且接线盒相对于夹具和杆悬挂器组件定向，使得杆衣架被夹在夹具和接线盒的后壁之间，夹具 与接线盒的后壁隔开一段距离。 然后将螺钉插入设置在接线盒的后壁中的开口并拧入设置在夹具的凸缘中的相应的螺纹开口中。 当螺钉进入凸缘的开口时，夹具被拉向接线盒，使得U形部分的可变形凸片变形并沿远离配线箱的方向移动并且朝向U形部分的U形部分 夹具。 突片的变形用于以一定的方式分配施加到整个夹具上的螺钉的扭矩或能量，以防止接线盒的损坏，例如开裂或破碎。