Wheel connecting structure and baby carrier

Patent metadata

Field	Value
Publication number	US-12552199-B2
Application number	US-202418603198-A
Country	US
Kind code	B2
Filing date	Mar 12, 2024
Priority date	Sep 1, 2021
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

The present disclosure relates to a wheel connecting structure and a baby carrier. The wheel connecting structure includes a fixed base, a rotatable base, a rotating shaft and an anti-swing member. The rotatable base is rotatably connected to the fixed base by the rotating shaft. The anti-swing member has an abutting portion. The anti-swing member is arranged on one of the fixed base and the rotatable base, and the abutting portion abuts against the other of the fixed base and the rotatable base. The abutting portion is provided with a lubricating structure.

First claim

What is claimed is:

1 . A wheel connecting structure, comprising:
a fixed base; a rotatable base; a rotating shaft; and an anti-swing member, wherein the rotatable base is rotatably connected to the fixed base by the rotating shaft, the anti-swing member comprises a fixing body and a positioning member, the anti-swing member is arranged along an extending direction of the rotating shaft, an end of the fixing body is formed with an abutting portion, an end of the fixing body away from the abutting portion is provided with a mounting groove, and the positioning member is inserted and fixed in the mounting groove; wherein the rotatable base is provided with a mounting cavity; the anti-swing member is mounted in the mounting cavity; and the abutting portion protrudes out of the mounting cavity to abut against the fixed base.

2 . The wheel connecting structure of claim 1 , wherein the fixed base has a first surface, the rotatable base has a second surface facing toward the first surface, the anti-swing member is arranged on the rotatable base, the abutting portion protrudes from the second surface and abuts against the first surface, a surface of the abutting portion abutting against the first surface is provided with a lubricating groove, and the lubricating groove is filled with lubricating medium to form a lubricating structure.

3 . The wheel connecting structure of claim 2 , wherein the lubricating medium includes lubricating oil.

4 . The wheel connecting structure of claim 3 , wherein the lubricating oil includes lithium-base oil.

5 . The wheel connecting structure of claim 2 , wherein the lubricating groove is a cylindrical groove.

6 . The wheel connecting structure of claim 5 , wherein the lubricating groove has an inner diameter in a range from 1.5 mm to 4.5 mm, and a depth in a range from 5 mm to 25 mm.

7 . The wheel connecting structure of claim 1 , wherein the abutting portion has a hardness in a range from 50 HRC to 70 HRC.

8 . The wheel connecting structure of claim 7 , wherein the abutting portion is made of silicone or a Hytrel material.

9 . The wheel connecting structure of claim 1 , wherein the abutting portion is provided with a lubricating structure.

10 . The wheel connecting structure of claim 1 , further comprising a fixing pin, wherein the fixing pin is arranged on the rotatable base, and an end of the anti-swing member away from the abutting portion abuts against the fixing pin.

11 . A baby carrier, comprising the wheel connecting structure of claim 1 .

12 . The baby carrier of claim 11 , further comprising a frame and a wheel assembly, wherein the fixed base is fastened to the frame, and the rotatable base is fastened to the wheel assembly.

Assignees

• Wonderland Switzerland Ag

Inventors

• Huang Jihua
• Guo Zhengwen

Classifications

• B62B7/00

  Carriages for children; Perambulators, e.g. dolls' perambulators · CPC title

• F16C33/66

  Special parts or details in view of lubrication · CPC title

• F16C2326/00

  Articles relating to transporting · CPC title

• B62B9/00

  Accessories or details specially adapted for children's carriages or perambulators (providing for travelling on snow B62B19/00) · CPC title

• B62B2301/05

  Details of the attachment of the wheel assembly to the chassis · CPC title