The caster device comprises a container with a downward opening, and the container comprises a top plate and a mounting bracket capable of vertically sliding in the container. In addition, one or more trundles are attached to one side of the mounting bracket and are in contact with the ground. And at least one elastic component is pressed on the lower side of the top plate of the container on the other side of the mounting bracket. When a predetermined weight is applied to an object supported by a container of the caster device, the elastic component is compressed, so that the bottom edge of the container is in contact with the ground. The friction between the trundle device and the ground is increased, so that the trundle device is not easy to move. The elastic assembly is a spring, for example. The caster device can provide better stability.
一脚轮装置,此脚轮装置包括一个向下开口的容器且该容器包括一顶板,以及一个可在容器内部垂直滑动的安装支架。此外,一个或多个脚轮附着于安装支架的一侧并与地面接触。在安装支架的另一侧,至少有一个弹性组件压在容器之顶板的下侧。当施加预定重量于脚轮装置的容器所支撑的对象时,弹性组件被压缩,从而使容器的底边与地面接触。这增加了脚轮装置与地面之间的摩擦,使脚轮装置不易移动。其中,弹性组件例如为一弹簧。脚轮装置可以提供更好的稳定性。
Trundle device
脚轮装置
2024-12-13
Patent
Electronic Resource
Chinese
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |
Trundle, installation method of trundle and application structure of trundle
European Patent Office | 2021
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