Mechanical joint for collapsible structures

Joints and connections – Axially curved or bent portion of rod is joint component

Reexamination Certificate

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Details

C403S102000, C403S232100, C403S238000, C403S244000, C473S471000

Reexamination Certificate

active

07377714

ABSTRACT:
A mechanical joint is formed from a hollow structure of material that can be shaped so that bringing opposite sides of the external walls forming the hollow together forms a socket. For example, by compressing together opposite external sides of a hollow structure, such as a tube, a socket with a continuous double wall is formed. The socket is configured to provide a snap fit with a moveable member. A flexible member is positioned in the socket and attached to the moveable member, so that the moveable member can be controlled for placement in an out of the socket. The flexible member may also twist to permit the moveable member to be located in any position necessary to allow the moveable member to be engaged in the socket or disengaged from the socket, reducing the need for precise component tolerances. The joint is useful in structures that have multiple configurations. For example, the joint finds application in structures such as portable game goals, where it is desirable for the structure to collapse from an erect position for game play into a collapsed configuration for transport.

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