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Foldable playpen

a playpen and folding technology, applied in children's furniture, domestic applications, applications, etc., can solve the problems of troublesome folding-unfolding operations, difficult and time-consuming threading and mounting cables, and achieve the effect of safe and reliable, convenient mounting, and simple structur

Inactive Publication Date: 2017-10-12
NINGBO HAISHU TIANHUA PROD DESIGN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a foldable playpen that is easy to assemble, low in cost, and safe and reliable. It has a simple operating mechanism that allows the playpen to fold up easily when not in use. The operating ropes are connected to the top fence joint assembly and the bottom frame foldable connector, allowing the playpen to fold the bottom frame rails and top fence rails simultaneously. The technical effects of this invention are a more convenient and easy-to-use foldable playpen that is sure to provide a great deal of safety and reliability.

Problems solved by technology

However, the problem is that a base frame folding-unfolding device in the prior art is complex in structure, and the joint structures of the base frame folding-unfolding device and the four top fence rails cannot be synchronously folded so that the folding-unfolding operations are troublesome.
However, the problem is that, in order to unfold or fold the upper assemblies by the cables in response to the up-and-down linear movement of the central assembly, the groups of cables are coordinated with cam followers which are mounted on lower legs on upper portions pivotally connected to lower corner assemblies.
It is very difficult and time-consuming to thread and mount the cables.
Moreover, due to the complex threading of cables, jamming occurs easily.
And, due to the complex threading of cables, the yield of qualified products is decreased, resulting in increased manufacturing cost.

Method used

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Examples

Experimental program
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embodiment 2

[0044]FIG. 8 and FIG. 9 show Embodiment 2 of the top fence assemblies according to the present invention. The playpen further comprises a connecting base 230 for rotatably connecting a first top fence rail 210 and a second top fence rail 220 of each top fence assembly; a fence joint assembly, for the first top fence rail 210 and the second top fence rail 220 to change from a vertically folded state to a horizontal state, is connected between the first top fence rail 210 and the second top fence rail 220; the fence joint assembly comprises a crank 250 and with two ends and a middle portion, an oscillating rod 260 with two ends and a middle portion, and a restoring spring 270 with an upper end and a lower end; a first end of the crank 250 rests against the first top fence rail 210 and the middle portion thereof is rotationally connected to the connecting base 230 by a first rotating shaft 280; a first end of the second crank 260 rests against the second top fence rail 220 and the midd...

embodiment 3

[0047]FIG. 10 shows Embodiment 3 of the top fence assemblies according to the present invention. The playpen further comprises a connecting base 023 for rotatably connecting a first top fence rail 021 and a second top fence rail 022 of each top fence assembly; a first sliding groove 023.1, and a second sliding groove 023.2 and a third sliding groove 023.3 which are symmetrically and diagonally arranged, are respectively provided on the connecting base 023. A guide element 024, on which a first guide groove 024.1 and a second guide groove 0.24.2 are provided, is in sliding connection with the connecting base 023 after passing through the first sliding groove 023.1 from a guide pin 027. A lower end of a torsional spring 029 is fixed on the guide pin 027 and an upper end thereof is fixed on the connecting base 023. A first pin 025 and a second pin 026 are symmetrically provided on two sides of the guide pin 027; the first pin 025 is in sliding fit in the first guide groove 024.1 and th...

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Abstract

A foldable playpen includes four top fence assemblies, four side fence assemblies and a bottom frame assembly, the first end of each bottom frame rail being movably attached to the bottom frame foldable connector; an operating device for engaging the four top fence joint assemblies with the bottom frame foldable connector; four operating ropes, each operating rope having a first end and a second end, for enabling the top fence rails and the bottom frame rails to respond to a movement of the bottom frame foldable connector so as to switch the foldable playpen to a folded state from an open state, the first end of an operating rope is connected to a top fence joint assembly, and the second end of an operating rope is connected to the bottom frame foldable connector. The playpen can synchronously fold the bottom frame rails and the top fence rails, and is safe and reliable.

Description

RELATE APPLICATIONS[0001]This application is a national phase entrance of and claims benefit to PCT Application for a foldable playpen, PCT / CN2015 / 088322, filed on Aug. 28, 2015, which claims benefit to Chinese Patent Applications 201410520146.9, filed on Sep. 30, 2014. The specifications of both applications are incorporated here by this reference.TECHNICAL FIELD OF THE INVENTION[0002]The present invention relates to the field of playpens and in particular to a foldable playpen.BACKGROUND OF THE INVENTION[0003]A baby playpen, as a safe place for babies to sleep and play, can be used both at home and on a trip. The playpen can also create a safe area for babies, especially when they can crawl or when they become passionately curious. As babies grew up with increased activities, the playpen can also be a safe place for babies if you must do something else, such as work or homework. In order to occupy less space and be convenient to move, the playpen is usually convenient to be folded...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A47D13/06
CPCA47D13/063A47D13/061A47D13/06A47D13/065A47D13/068
Inventor MAO, HONGYONG
Owner NINGBO HAISHU TIANHUA PROD DESIGN LTD
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