|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||A01K-097/10 A45B-019/04 A45B-019/00|
|미국특허분류(USC)||403/109.2; 403/109.3; 403/109.6; 403/378; 015/015; 015/016; 015/080; 015/081|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 38 인용 특허 : 11|
A positioning structure of a beach umbrella is provided that includes a positioning apparatus to connect with a lower tube of the umbrella. The apparatus has a flat plate for forcing the lower tube being inserted into ground easily. A handle has a rod to engage with apertures on the tubes of the shaft that can adjust the height of the beach umbrella as desired for increasing utility.
I claim: 1. A positioning structure of a beach umbrella comprising: a shaft including an upper tube and a lower tube, said upper and lower tubes each having several interval positioned apertures thereon; a positioning apparatus connecting said upper and lower tubes together, said positioning apparatus including a flat plate and a joint with a spring on a side thereof, said spring providing an elastic force; a handle coupled to said spring and being biased thereby; a rod coupled to a top of the handle and biased to extend into a central hole of the pos...