| 摘要 |
An umbrella tent of the type which has no hindering central post in the open position and which is characterized by having a removable central post extension which is used to produce opening of the tent and which also allows a simple construction of the framework components without the need for an actuation mechanism in addition to the basic framework components as heretofore done. This umbrella tent includes a central post, ribs pivoted to the upper end of the central post and spaced around the latter, an elongated post extension removably securable endwise to the lower end of the central post, a slidable underlying ring engaged around the central post and slidable along the latter and the post extension, a hook member to releasably hook this ring and hold the latter in fixed position along the central post, rods pivoted at their opposite ends to this ring and to an intermediate portion respectively of the ribs, and a spreader ring overlying the other ring and slidable along the central post and the post extension, whereby the spreader ring holds the ribs and rods in position of readiness for opening of the tent when the latter is closed and the post extension is upwardly cleared by the slidable underlying ring and is preferably removed when the tent is open.
|
