Baby carriages

Abstract

The invention provides a baby carriage, in which the posterior wheels thereof can shift to be respectively fit for service state and folded state without unnatural attitude of the user. The baby carriage comprises a first linkage mechanism provided with front wheels and hand pushed frame as connection rod parts and viewed to be approximate parallelogram from the direction of the carriage width and the hand pushed frame approximately parallelly moving downwards when the carriage body deforms from the service state to the folded state; a second linkage mechanism provided with a pair of posterior wheel arms used as connection rod parts and approximately parallelly disposed to form the posterior wheels of the carriage and viewed to be approximate parallelogram, wherein the posterior wheels shift at the fore and aft direction of the carriage body when the second linkage mechanism acts; a linkage hitch mechanism for connecting the first linkage mechanism and the second linkage mechanism, therefore the linkage hitch mechanism acts together with the first linkage mechanism when the first linkage mechanism is operated to make the carriage deform from the service state to folded state, so that the posterior wheels shift towards the front wheels.

Description

technical field [0001] The present invention relates to a stroller with a foldable body, a caster having a locking function for preventing rotation of wheels, and a stroller using the caster. Background technique [0002] Conventionally, as such a stroller, there is a structure in which the push frame is folded back to the vicinity of the base of the handle. As other baby carriages, there is also known a baby carriage with a structure in which a link mechanism is formed by using the front legs, an armrest, a push frame, and a seat frame as link members, and the push frame is moved downward by the operation of the link mechanism. Move, and rotatably connect the armrest and the rear foot, connect the push frame and the rear foot via the rear foot bracket, and rotate the rear foot toward the front foot in conjunction with the movement of the push frame to fold the vehicle body (for example, refer to Patent Document 1). [0003] In addition, the front wheels of the stroller, so...

AI Technical Summary

Problems solved by technology

Therefore, when the rear wheels are fully pressed to the outside in the vehicle width direction in the use state to ensure the stability of the vehicle body, even in the folded state, the rear wheels will always be pushed out, so that only in the rotational movement of the rear wheels , the vehicle body cannot be folded compactly in the vehicle width direction

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