Furniture hinge

Abstract

The invention discloses a furniture hinge, comprising a fixed seat, a movable seat and an outer rocking arm, wherein an elastic resetting mechanism used for controlling the opening and the closing of a hinge is arranged between the fixed seat and the movable seat; a damping device connected with the elastic resetting mechanism is also arranged on the fixed seat; the elastic resetting mechanism at least comprises an elasticity distribution part and a resettable elastic element, wherein the elasticity distribution part is respectively articulated to the fixed seat and the movable seat; the resettable elastic element is articulated to a connecting shaft of the outer rocking arm, which is articulated with the fixed seat, and two free ends parallelly extending towards a same side from the articulated part of the resettable elastic element are arranged on the elastic element and respectively tightly support against the fixed seat and the elasticity distribution part. The furniture hinge disclosed by the invention can freely stop between about 40 degrees and 120 degrees after being opened at about 40 degrees and has the advantages of reasonable spring reset force distribution, long service life, little opening force and convenience for use.

Description

technical field [0001] The invention relates to a furniture hinge, in particular to a hinge with elastic elements used for doors or movable parts of furniture. Background technique [0002] In the prior art, the closing force generated when the furniture door is closed often causes the furniture door to hit the furniture main body. In order to reduce the impact and noise related to the closing force, there is a hinge with a damping device installed between the furniture body and the door panel. This type of hinge can effectively eliminate the impact and noise generated when the door panel is closed, and has been widely used. application. [0003] However, from the perspective of application, the opening angle of the door leaf is about 0°~120°. The technical indicators of the existing hinges are generally that the door panel will automatically switch to the pop-up state after the door panel is opened about 0°-60°, the self-bounce angle is about 60°-120°, and the maximum ope...

AI Technical Summary

Problems solved by technology

But the above-mentioned prior art puts too much emphasis on the silent and gentle state when the door panel is closed, and does not consider a relatively large impact force caused by the hinge self-elasticity combined with the door panel weight and self-elastic angle (about 60°) when the door panel is opened.

According to analysis, since the door panel is not in contact with the furniture body when it is opened to the maximum angle, that is, there is no noise or direct impact, but this impact will be transmitted to the hinge body and the joint between the hinge and the furniture, seriously affecting the service life of the hinge and furniture. This is the biggest defect of the existing technology, and it is a difficult problem that the industry urgently needs to overcome.

[0004] In addition, the existing hinges with springs used for furniture have elastic return mechanisms such as Figure 2a and 2b , Figure 3a and 3b ,as well as Figure 4a and 4b As shown, it is a torsion spring a that provides the reset force. The characteristic of the torsion spring a is that two free ends protrude from its hinged position to cross each other to different sides. The torsion force of this torsion spring a during the opening and closing of the hinge The angle difference is about 32°. In this state, the torsion spring a is prone to mechanical fatigue, the restoring force of the torsion spring a decreases rapidly, and even the spring body breaks, which eventually leads to the service life of the hinge not reaching the designed opening and closing. frequency

It can be seen from the above drawings that the distribution of the return force of the hinge spring in the prior art is unreasonable, the torsion angle in the closed state is the smallest (about 110°), and the torsion angle in the open state (about 136°) is greater than the torsion in the closed state Angle, and the maximum torque angle (about 142°) appears during the switching process. In such a spring return force distribution state, an external force greater than the return force is required to open the furniture door leaf, which brings inconvenience to the user.

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