초록 ▼

In order to transport delicate equipment, unstable/hazardous liquids or the like, from one point to another, a cart, or similar form of conveyance, is provided with one or more tables or platforms which are pivotally supported and connected to a relatively large mass. The mass exhibits sufficient in

In order to transport delicate equipment, unstable/hazardous liquids or the like, from one point to another, a cart, or similar form of conveyance, is provided with one or more tables or platforms which are pivotally supported and connected to a relatively large mass. The mass exhibits sufficient inertia that changes in cart orientation, as the cart traverses inclines or the effects of sudden cart accelerations or decelerations are compensated for by the inertial-controlled pivotal movement of the table.

대표청구항 ▼

[ What is claimed is:] [1.] A cart for transporting semiconductor wafers or volatile materials while automatically maintaining a level surface on which said transported articles are disposed, said cart comprising:at least one table, and for each said table;a shaft one end of which is attached to sai

[ What is claimed is:] [1.] A cart for transporting semiconductor wafers or volatile materials while automatically maintaining a level surface on which said transported articles are disposed, said cart comprising:at least one table, and for each said table;a shaft one end of which is attached to said table;a mass connected to the shaft; anda joint in a structure of said cart which movably supports said shaft such that said table moves in response to the inertia of said mass so as to maintain an upper surface of said table in a level position;wherein said joint comprises a hole in said structure through which said shaft extends, said table being attached to said shaft above said structure and said mass being attached to said shaft below said structure.