초록 ▼

A service cart assembly including a cart having a lower base equipped with a plurality of rollers or wheels thereunder and a plurality of posts erected standing upright from the lower base with a top plate installed thereupon, and a stepladder built in the cart having a rear leg element fixed rigidl

A service cart assembly including a cart having a lower base equipped with a plurality of rollers or wheels thereunder and a plurality of posts erected standing upright from the lower base with a top plate installed thereupon, and a stepladder built in the cart having a rear leg element fixed rigidly to the rear end portion of a top plate of said stepladder and having a front leg element connected pivotally to the front end portion thereof. The step ladder further includes a connecting arm assembly connected pivotally at the rear end thereof to the lower base of the cart and at the front end thereof to the rear leg element of the stepladder, and a latch mechanism for engagement with the top step of the stepladder mounted on the front pair of the posts standing upright from the cart.

대표청구항 ▼

A service cart assembly including a cart and a stepladder, comprising: a cart having a lower base, a plurality of rollers rotatably supported on said lower base, a plurality of posts extending upwardly form said lower base and a top plate supported on said posts above said lower base; a stepladder h

A service cart assembly including a cart and a stepladder, comprising: a cart having a lower base, a plurality of rollers rotatably supported on said lower base, a plurality of posts extending upwardly form said lower base and a top plate supported on said posts above said lower base; a stepladder having a top step, at least one front leg element pivotally connected to a front portion of said top step, at least one rear leg element fixed rigidly to a rear portion of said top step; means connecting said stepladder to said cart for pivotal movement of said stepladder from a collapsed condition in said cart substantially between said lower base and said top plate to an expanded condition with said front leg element and said rear leg element in contact with a support surface and said rear leg element being between said front leg element and said cart, said connecting means including at least one connecting arm which is pivotally connected at one end thereof to said lower base of said cart and at the other end thereof to said rear leg element of said stepladder; means for latching said stepladder in a collapsed condition into said cart, said latching means releasably engaging at least one front post of said cart with said top step of said stepladder; stopper means mounted on said at least one rear leg element of said stepladder for abutting against an upper surface of said connecting arm for stabilizing said step ladder while in an expanded condition.