专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US3676972A Shoring structure 失效
标题翻译：更短的结构
公开(公告)号：US3676972A
公开(公告)日：1972-07-18
申请号：US3676972D
申请日：1969-08-01
申请人： BALLOU CLAYTON R , JACK E HURSH
发明人： BALLOU CLAYTON R
IPC分类号： E04G1/14 , E04G1/18 , E04G7/30 , E04H12/00
CPC分类号： E04G7/308 , E04G1/14 , E04G1/18 , E04G7/301 , E04G7/305
摘要： Disclosed herein are shorting structures having bases and telescoping members, each shoring structure being fabricated of square tubing. In one embodiment of the structure, square tubing of the telescoping member telescopes inside and along square tubing of the base. In a second embodiment, square tubing of the telescoping member telescopes outside and along square tubing of the base member. In yet another embodiment both inner and outer square tubing of the telescoping member telescopes along square tubing of the base. Lock means are associated with the bases and telescoping members to lock thereto cross bracing between base members, telescoping members, etc. Such lock means include a slidable member which is slidable to a position holding the end portion of a cross brace, and to a position freeing the end portion of the cross brace.
摘要翻译：本文公开了具有底座和伸缩构件的短路结构，每个支撑结构由方管制成。在结构的一个实施例中，伸缩构件的方管在基座的内部和方形管道上望远镜。在第二实施例中，伸缩构件的方管在基部构件的外侧和方形管上望远镜。在另一个实施例中，伸缩构件的内部和外部方管都沿着基座的方管伸缩。

IPRDB

热门服务

关于我们

友情链接

联系方式