公开(公告)号：US20210154085A1

公开(公告)日：2021-05-27

申请号：US16849929

申请日：2020-04-15

Applicant: Wistron Corp.

Inventor： Chen Yi LIANG ,  Cheng Hsing LIU ,  Chien-Wei CHEN

IPC: A61H3/04

Abstract: An omnidirectional wheel is provided. The omnidirectional wheel includes a support unit, a major wheel, a first minor wheel and a second minor wheel. The major wheel is annular and is rotatably disposed on the support unit. The first minor wheel is rotatably disposed on the support unit. The first minor wheel is disposed on one side of the major wheel. The second minor wheel is rotatably disposed on the support unit. The second minor wheel is disposed on the other side of the major wheel. The omnidirectional wheel can easily roll over an obstacle when the omnidirectional wheel rolls laterally or forward.

公开(公告)号：US20210290475A1

公开(公告)日：2021-09-23

申请号：US16935151

申请日：2020-07-21

Applicant: Wistron Corp.

Inventor： Chen Yi LIANG ,  Cheng Hsing LIU ,  Chien-Wei CHEN

IPC: A61H3/04

Abstract: A walker is provided. The walker includes a walker body, a handle unit, a first wheel unit and a second wheel unit. The handle unit is connected to the walker body. The first wheel unit is connected to the walker body. The second wheel unit is connected to the walker body. In an auxiliary mode, a first gap is formed between the first wheel unit and the second wheel unit. In a driving mode, a second gap is formed between the first wheel unit and the second wheel unit. The first gap is smaller than the second gap.

公开(公告)号：US20200129368A1

公开(公告)日：2020-04-30

申请号：US16370539

申请日：2019-03-29

Applicant: Wistron Corp.

Inventor： Chen Yi LIANG ,  Cheng Hsing LIU ,  Ming-Ju HSIEH

IPC: A61H3/04

Abstract: A walker apparatus is provided. The walker apparatus includes a base, a plurality of wheels, a connection bracket, a handle unit and an actuating unit. The wheels are connected to the base. The connection bracket pivots on the base. The handle unit is disposed on the connection bracket. The actuating unit is connected to the base and the connection bracket. The actuating unit moves the connection bracket between a getting-up orientation and a walking-assistance orientation relative to the base. The user can stand up from a sitting position using the walker apparatus without external assistance from other people.