Reversible foldable push-chair for children

• US 4,449,732 A
• Filed: 02/10/1982
• Issued: 05/22/1984
• Est. Priority Date: 02/13/1981
• Status: Expired due to Fees

• Current Assignee: Ampafrance SA A Joint-Stock Company
• Original Assignee: Ampafrance SA
• Inventors: Surot, Patrick
• Primary Examiner(s): Peters, Jr., Joseph F.
• Assistant Examiner(s): MAR, MICHAEL Y
• Application Number:
  US06/347,607
• Time in Patent Office: 832 Days
• Field of Search: 297/183, 297/DIG. 4, 280/644, 280/647, 280/47.34, 280/47.36, 280/47.38, 280/47.39
• US Class Current: 280/644
• CPC Class Codes: B62B 7/004 Carriages supporting a hammock-style seat
• CPC Class Codes: B62B 7/068 by sliding a bushing along a rod, e.g. like folding means of an umbrella
• CPC Class Codes: B62B 7/08 in the direction of, or at right angles to, the wheel axis
• CPC Class Codes: B62B 7/147 rotatable as a whole to transform from seating to lying
• CPC Class Codes: B62B 9/203 movable from front end to rear end position

Abstract

A reversible foldable push-chair of the umbrella type comprises, on both sides of a hammock carried thereon, a tipping joint core and branches articulated to said core, each branch carrying a wheel, a control pushing arm for controlling sliding and tipping motions and passing through each of the cores, and link means connecting said arm to said branches such that depending on the tipping motion imposed upon the cores by said sliding arm, there is obtained display and locking of the push-chair to a "facing mother" or "look ahead" positions.

The push-chair is usually applied to transportation of children.

Claims

1. A reversible foldable push-chair of the slidable umbrella type adapted for folding;

or when unfolded displaying either a facing rearward, "facing mother" position, or a facing forward, "look ahead" position, supporting a hammock and comprising on each side of the hammock,

a tipping core,

two wheel carrier branches hingedly mounted to said tipping core and having a wheel at one end of each of said branches,

a pushing arm slidably mounted and traversing said tipping core so that said pushing arm can slidably move through said tipping core and in a tipping motion in relation to the push-chair thereby rotating the position of said tipping core,

and link means connecting said pushing arm to said two wheel carrier branches

whereby dependent upon the direction of the tipping motion of the handle and of rotation of the position of said tipping core, the push-chair is spread out for displaying and locked in either a "facing mother" position or in a "look ahead" position.

2. The push-chair of claim 1 further characterized by

said tipping core having a groove near the hinged connection of each of said branches with said core, for receiving and locking in each of said branches,

each of said branches being of an arcuate shape to present a portion receivable in one of said grooves and another portion carrying said wheel positioned nearer to the centerline of the push-chair when the push-chair is in the folded position.

3. The push-chair of claim 1 further characterized by said link means including

forks articulated to said branches and to one another in the form of a pair of compasses and lying in alignment with each other when the push-chair is in either the "facing mother" position or the "look ahead" position,

a link connecting said forks to said pushing arm,

and a locking means to enable said forks to be held in alignment with each other in the unfolded displaying position of the push-chair.

4. The push-chair of claim 1 further characterized by

a longitudinal rod carried by said core on each side of the push-chair in a pivotable manner,

said longitudinal rod receiving the hammock thereon,

and adjusting means to adjust the position of said longitudinal rod with respect to said core.

5. The push-chair of claim 1 further characterized by

said branches being telescopically extendable at the ends at which said wheels are mounted.

6. A reversible foldable push-chair of the slidable umbrella type adaptable for folding or for unfolding and spreading out in a facing rearward, "facing mother" position or a facing forward, "look ahead" position, supporting a hammock and comprising on each side of the hammock

a tipping core,

two wheel carrier branches articulated to said core,

a pushing arm slidably mounted and traversing said tipping core so that said pushing arm can slidably move through said tipping core and in a tipping motion in relation to the push-chair thereby rotating the position of said tipping core,

link means connecting said pushing arm to said two branches,

said tipping core having a groove near the articulation connection of each of said branches with said core for receiving and locking each of said branches in its respective one of said grooves,

said link means including

forks articulated to said branches and to one another in the form of a pair of compasses and lying in alignment with each other when the push-chair is in either the "facing mother" position or the "look ahead" position,

a link connecting said forks to said pushing arm,

said link having a slide groove formed to articulate said link with said pushing arm so that when the push-chair is unfolded and spread out the stroke of said link is tranformed to a combined simultaneous lifting and inclination movement, such inclination being effected as desired either in a "facing mother" direction or in a "look ahead" direction.

7. The push-chair of claim 6 further characterized by

pivot points at which said forks are articulated to said branches, and means to lower said points to allow use of at least one of said forks as a footboard.