Hinge for luggage compartment

By using a stop pawl and ratchet in the hinge structure, assembly is simplified and stable torque adjustment is provided. This solves the problems of inconvenient operation and insufficient safety of baggage compartment hinges under high loads, achieving smooth buffering and power assistance, and improving the ease of use and safety of baggage compartments in vehicles and aircraft.

CN121024433APending Publication Date: 2025-11-28SFS GROUP INTERNATIONAL AG
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Patent Information

Application Number
CN202510688792.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-05-27
Filing Date
2025-05-27
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

In the existing technology, the hinges of the luggage compartment are difficult to provide smooth cushioning and assistance under high load and complex load conditions, resulting in inconvenient opening and closing operation and insufficient safety.

Method used

A hinge structure is designed, including first and second hinge pages, a shaft tube, a torsion spring, a buffer element, and an adjustment element. The torsion spring is reliably stopped by the engagement of a stop pawl and a ratchet, avoiding axial preload, simplifying assembly, and providing stable torque adjustment. The opening speed of the flip cover is adjusted in conjunction with the buffer element.

Benefits of technology

The operation comfort and safety of the luggage compartment flap have been improved, ensuring that the flap opens stably under high-frequency opening and closing and complex loads, avoiding sudden pop-up, and improving ease of use and safety.

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Abstract

The invention relates to a hinge for a luggage compartment, comprising two hinge leaves, the bearing sleeve of the first hinge leaf being arranged between the bearing sleeves of the second hinge leaf so as to be rotatable about a common hinge axis. The shaft tube is connected with the bearing sleeve of the first hinge leaf in an anti-rotation mode and can be rotatably supported in the bearing sleeve of the second hinge leaf. A torsion spring is arranged in the shaft tube, one end of the torsion spring is fixed to the shaft tube, and the other end of the torsion spring is connected with an adjusting element used for pre-tightening the torsion spring. One end of the buffer element is arranged in the first bearing sleeve of the second hinge leaf in a torsion-resistant manner, and the other end is connected with the shaft tube. The adjusting element mainly comprises: A) a locking element having a ratchet wheel with an outer gear ring; b) a stop pawl for engagement in the outer gear ring; and C) a stop element which limits the rotation angle range of the adjusting element. The purpose of the present invention is to ensure the stop action of a stop pawl without axial preload of a torsion spring. Each luggage compartment flap generally uses two hinges.
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