| 主权项 |
1. A foldable crate comprises:
(a) a base platform, said base platform comprising:
(1) a pair of longitudinal portions;(2) a pair of flanking portions;(3) at least one structural element, disposed adjacently to said longitudinal portions of said base platform;(4) at least one structural element, disposed adjacently to said flanking portions of said base platform; (b) a pair of longitudinal sidewalk, each one of said longitudinal sidewalls comprising:
(1) at least one structural element, configured to form a hinged connection with said at least one structural element disposed adjacently to said longitudinal portion of said base platform;(2) a tab, configured to serve as a gripping handle;(3) a pair of structured protrusions, extending inwardly from an inner surface of said longitudinal sidewall;(4) a U-shaped cut essentially surrounding said structured protrusions, thereby rendering said structured protrusions laterally displaceable, wherein upon exerting a force onto said structured protrusions, a biasing force is formed by a material at the basis of said U-shaped cut; (c) a pair of flanking sidewalls, each one of said flanking sidewalk comprising:
(1) at least one structural element, configured to form a hinged connection with said at least one structural element disposed adjacently to said flanking portion of said base platform;(2) a tab, configured to serve as a gripping handle;(3) a structured centric recess, essentially surrounding said tab;(4) a pair of flanking struts, forming a pair of channels in side portions of said flanking sidewall;(5) a pair of side recesses, forming openings on interior side of said flanking sidewall, configured to sustain a passage of said structured protrusions on said longitudinal sidewall through said openings; (d) a pairs of rotary locking elements disposed on an exterior side of each one of said flanking sidewalls, each one of said locking elements comprising:
(1) a pivot connectable to said flanking sidewall, upon which said locking element is rotatable;(2) a leaf-spring extending from a top face of said locking element upwardly, biasing said rotary locking element into a lower position;(3) a chamfered terminal front face, being inwardly slanted; (e) an unlocking element disposed in said structured centric recess in said flanking sidewall, essentially underneath said tab, said unlocking element comprising:
(1) at least one structural element for operatively connecting to said flanking sidewall, configured to sustain vertical translation of said unlocking element;(2) a pair of terminal portions, wherein each one of said terminal portions is configured to confer a rotational torque to said rotary locking element upon forceful elevation of said unlocking element in an upward direction. |
