Automatically extending foot seat

Abstract

The present invention provides an automatically extending foot seat, which comprises an outer bushing, an extension rod, and a spring abutting between the extension rod and the outer bushing. The outer bushing has a retaining groove. A resilient press button is disposed at the retaining groove. Moreover, the front end of the extension rod has a foot seat. A retaining part matching the retaining groove is disposed near the foot seat. Through the function of the press button of the outer bushing, the retaining part can let the extension rod protrude out of the outer bushing. Thereby, an extended supporting point can be obtained to prevent the traveling suitcase from falling down because of an unsteady center of gravity.

I claim:  
     
         1 . An automatically extending foot seat, comprising: 
 an outer bushing with an opening at a front end thereof, a retaining groove being disposed near said opening, a resilient press button being disposed at said retaining groove;    an extension rod with a foot seat at a front end thereof, a retaining part matching said retaining groove being disposed near said foot seat, said retaining part having resiliency to let said extension rod move retractably in said outer bushing; and    a resilient element abutting between said extension rod and said outer bushing;    whereby an extended supporting point can be obtained to prevent a traveling suitcase from falling down because of an unstable center of gravity.    
     
     
         2 . The automatically extending foot seat as claimed in  claim 1 , wherein an upper surface of said outer bushing has locking parts used to lock said outer bushing onto a predetermined position of the bottom of a traveling suitcase.  
     
     
         3 . The automatically extending foot seat as claimed in  claim 1 , wherein an upper surface of said outer bushing has a lengthwise groove, and said extension rod has a stop part to match and move in said lengthwise groove.  
     
     
         4 . The automatically extending foot seat as claimed in  claim 1 , wherein said resilient element is a spring.