초록 ▼

An expandable stop ring slides over the end of a top post until it engages a selected one of a number of spaced apart grooves in the end of a top post. The end of the top post is inserted into a bottom tubular post until the stop ring fits inside a keeper that is mounted to the upper end of the bott

An expandable stop ring slides over the end of a top post until it engages a selected one of a number of spaced apart grooves in the end of a top post. The end of the top post is inserted into a bottom tubular post until the stop ring fits inside a keeper that is mounted to the upper end of the bottom post. The keeper prevents expansion of the stop ring, hence the stop ring and keeper combination support the top post and any equipment carried thereon. The top post height adjustment is made by lifting the top post to remove the stop ring from the keeper, thereby permitting sliding movement of the stop ring to another selected groove on the top post.

대표청구항 ▼

[ The invention claimed is:] [1.] A system for adjusting the height of a post, comprising:a tubular bottom post;a top post insertable into the bottom post and having a plurality of outer grooves formed therein;an expandable stop ring removably attached to the top post around one of the grooves, the

[ The invention claimed is:] [1.] A system for adjusting the height of a post, comprising:a tubular bottom post;a top post insertable into the bottom post and having a plurality of outer grooves formed therein;an expandable stop ring removably attached to the top post around one of the grooves, the stop ring being split to facilitate expansion of the stop ring, thereby to permit relocation of the stop ring to another one of the grooves on the top post; anda keeper carried by the bottom post and defining between the top post and the keeper an annular space into which fits the attached stop ring, the keeper preventing expansion of the stop ring away from the top post when the stop ring is fit into the annular space.