Portable type of foldable luggage cart

• US 4,619,464 A
• Filed: 05/21/1985
• Issued: 10/28/1986
• Est. Priority Date: 05/21/1985
• Status: Expired due to Fees

• Current Assignee: Philip Hwang
• Original Assignee: Philip Hwang
• Inventors: Hwang, Philip
• Primary Examiner(s): Love, John J.
• Assistant Examiner(s): Culbreth, Eric D.
• Application Number:
  US06/736,610
• Time in Patent Office: 525 Days
• Field of Search: 280/654, 280/655, 280/652, 280/659, 280/42, 280/47.29, 16/112, 16/123, 403/382, 403/403, 403/61, 403/116
• US Class Current: 280/655
• CPC Class Codes: B62B 3/02 involving parts being adjustable, collapsible, attachable, detachable or convertible
• CPC Class Codes: Y10T 403/32073 Pivot stud slidable in elongated opening

Abstract

A portable and foldable luggage cart having a pair of track rods, casters on the rods, vertical rods pivotally attached to the ends of the track rods and a handle pivotally attached to the free end of one vertical rod and attached by a slot to the other vertical rod, the pivotal attachment of the rods including a U-shaped portion having an end wall, two pins and a spring, the spring urging the end of the vertical rods into engagement with the end walls when the cart is folded and into engagement with one of the pins when the cart is unfolded.

Claims

1. A portable and foldable luggage cart comprising a pair of track rods, each track rod having a plurality of casters, a pair of vertical rods, means on one end of each of said track rods for pivotally mounting one end of one of said vertical rods to said one end of said each track rods, a handle pivotally connected at one of its ends to the free end of one of said vertical rods and having a projection at the other of its ends for engagement in a slot in the free end of the other of said vertical rods when said luggage cart is unfolded and erected for carrying luggage, hinged joints interconnecting said pair of track rods and said pair of vertical rods for spacing one of said track rods and vertical rods parallel to the other of said track and vertical rods when said hinged joints are opened for said cart to carry luggage, and for bringing said one and said other of said tracks together substantially close and parallel with each other when said hinged joints are closed for folding said cart, said pivotally mounting means on one end of each of said tracks having an open upward U-shaped end having a first pin extending through an elongated slot in said vertical rod, a second pin for engaging a slot in the end of said vertical rod when said vertical rod is perpendicular to said track rod, said open upward U-shaped end having a rear wall for engaging the slotted end of said vertical rod when said vertical rod is folded and for engaging the side of said rod when said slot is in engagement with said second pin, and a spring connected at one of its ends to said mounting means and at its other end to said vertical rod for engaging the slotted end of said vertical rod with said rear wall of said open U-shaped end when said vertical rod is folded and for engaging said slot in the end of said vertical wall with said second pin when said vertical rod is perpendicular to said track rod.