Cupboard door balance system
AssigneeCmech (Guangzhou) Ltd.
InventorDing Gou Kun
Life of this patent
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Abstract
A balance system used with a door of a cupboard comprises a transmission shaft, a first pulley on the transmission shaft, and a balance component. The first pulley is connected to a door belt, one end of the door belt is secured to the first pulley, and the other end of the belt is connected to the door. The balance component comprises a balancing member, a balancing belt and a second pulley on the transmission shaft. One end of the balancing belt is connected to the second pulley, and the other end of the balancing belt is connected to the balancing member, such that the balancing member is hung on the second pulley. The first pulley and the second pulley rotate synchronously, and the door belt and the balancing belt are wound oppositely. With the balance system, a small driving force can open/close the door.
Claims19
A balance system for a door of a cupboard, comprising:
- a transmission shaft;
- a first pulley mounted on the transmission shaft, and
- a balance component;
- the first pulley is connected to a door belt, one end of the belt is secured to the first pulley, and the other end of the belt is connected to the door of the cupboard;
- the balance component comprises a balancing member, a balancing belt and a second pulley configured at the transmission shaft;
- one end of the balancing belt is connected to the second pulley, and the other end of the balancing belt is connected to the balancing member, such that the balancing member is hung on the second pulley;
- and
- the first pulley and the second pulley rotate simultaneously, and the door belt and the balancing belt are wound in opposite directions on the first pulley and the second pulley, respectively.
A cupboard, comprising:
- a box with an open front;
- a door mounted to the box for vertical movement between open and closed positions relative to the open front;
- pulley system mounted to the box and to the door;
- and
- a weight connected to the pulley system to counter-balance the door.
Dependencies are inferred from the claim text.