US 11,524,812 B2Granted

Blow-molded unitary structure with enhanced strength

AssigneeInno-Sports Co., Ltd.

InventorKwan Jun Choi

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Abstract

A blow-molded unitary structure includes a panel having first and second panel walls and a generally hollow interior between the first and second panel walls. The structure also includes a plurality of depressions, or at least one ridge, or both the depressions and ridge to enhance the strength of the structure. The plurality of depressions is monolithically formed with the panel, recessing from the second panel wall toward the first panel wall. A depression has a side wall composed of first and second segments. Cross-sectional-wise, the first and second segments have different widths and thus collectively forms a step between the first and second segments. A ridge is also monolithically formed with the panel and includes a section, at which the width of the ridge varies along the height direction of the ridge.

Claims21

Dependent claims

A blow-molded unitary structure comprising:

a panel comprising:
a first panel wall;
and
a second panel wall spaced apart from the first panel wall in a first direction;
and
a plurality of depressions monolithically formed with the first or second panel wall, each recessing from the second panel wall toward the first panel wall to enhance a strength of the panel, wherein each depression in the plurality of depressions comprises:
an open top at the second panel wall;
a closed bottom opposite to the open top;
and
a depression side wall connecting the open top and the closed bottom,
wherein the depression side wall comprises a first depression side wall segment adjacent to the open top and a second depression side wall segment adjacent to the closed bottom,
wherein the first and second depression side wall segments have different lateral widths or diameters measured on planes substantially perpendicular to the first direction, and
wherein the first and second depression side wall segments are connected to each other by a step formed between the first and second depression side wall segments.

10 more elements

A blow-molded unitary structure comprising:

a panel comprising a first panel wall, and a second panel wall spaced apart from the first panel wall in a first direction;
and
a ridge monolithically formed with the panel and extended from the panel in the first direction beyond the second panel wall, the ridge comprising:
a first ridge side wall comprising a first ridge base edge and a first ridge top edge, the first ridge base edge joined with the first panel wall;
a second ridge side wall spaced apart from the first ridge side wall in a second direction, the second ridge side wall comprising a second ridge base edge and a second ridge top edge, the second ridge base edge joined with the second panel wall;
and
a ridge top wall connecting the first ridge top edge of the first ridge side wall and the second ridge top edge of the second ridge side wall,
wherein at a first ridge section of the ridge, a distance measured from the second ridge side wall to the first ridge side wall varies along the first direction.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/193,421Filed 5 Mar 2021
Priority: CN 202020680639.X28 Apr 2020
Published: US 2021/0331831 A128 Oct 2021
Granted: 13 Dec 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

A47B 96/205
Furniture panels or like furniture elements: composite panels, comprising several elements joined together
B65D 19/04
Rigid pallets with side walls, e.g. box pallets: with bodies moulded or otherwise fabricated in one piece
A47B 13/08
Details of tables or desks: table tops; Rims therefor
A47B 2003/008
Folding or stowable tables: the underframe parts being stored in recesses in the underside of the table top