US 11,812,822 B2Granted

Size-adjustable sport shoe

AssigneeTri Gold Manufacture Co., Ltd.

InventorsTing-Hung Yu, Chuan-Hung Yu

Life of this patent

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Abstract

A size-adjustable sport shoe includes a shoe head, a shoe insole, and an adjusting telescopic device including a gear, a shaft gear, first and second gear racks, and handle. The first and second gear racks are located at two lateral sides of an elongated adjustment groove at the shoe head, wherein the upper surface of the second gear rack is lower than the upper surface of the first gear rack. The gear shaft is coupled between the gear and the handle. When the handle is folded perpendicularly to an axis direction of the gear shaft, the gear meshes with the first gear rack to lock up the shoe head at the shoe insole. When the handle is folded to coincide with the axis direction of the gear shaft, the gear meshes with the second gear rack to allow the shoe head to be slid from the shoe insole.

Claims20

Dependent claims

A size-adjustable shoe, comprising:

a shoe head having an elongated adjustment slot formed at an inner bottom side defining two lateral sides;
a shoe insole coupled with said shoe head;
and
an adjusting telescopic device slidably coupled with said shoe head and with said shoe insole, wherein said adjusting telescopic device comprises:
a first rack and a second rack located along said two lateral sides of said adjustment slot respectively, such that said first rack and said second rack are parallel with each other at said lateral sides of said adjustment slot, wherein said first rack is supported at a first horizontal level and said second rack is supported at a second horizontal level;
an engaging element disposed at said adjustment slot;
and
an adjusting element, extended from said engaging element, being configured to drive said engaging element to selectively engage with one of said first rack and said second rack, so as to lock said shoe head with said shoe insole to prevent a sliding movement of said shoe head from said shoe insole when said adjusting element is engaged with said first rack, and to enable said shoe head being free to slide from said shoe insole to selectively adjust a length of said shoe when said adjusting element is engaged with said second rack.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/140,520Filed 4 Jan 2021 · continuation
Priority: 22 Mar 2016
Published: US 2021/0121766 A129 Apr 2021
Granted: 14 Nov 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

A43B 5/1608
Skating boots: size adjustable
A63C 1/26
With special foot-plates of the boot: divided into two parts permitting adjustment to the size of the foot
A43B 3/26
Footwear characterised by the shape or the use: adjustable as to length or size
A43B 17/16
Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined: with heel or toe caps

Family

Application14/436,872Parent of this continuation · filed 22 Mar 2016
US 2021/0121766 A1Pre-grant publication · published 29 Apr 2021
US 11,376,485 B2Parent of this continuation
US 2017/0056754 A1Published application
US 11,812,822 B2This patent

From the US filing history. Foreign family members aren’t listed.