Tea table structure for berth-chair conversion

By designing a four-bar mechanism for the support frame, berth, and tea table, the problem of cumbersome fixing of the tea table and structural instability after converting a sleeper berth into a seat on a train was solved, achieving convenient berth-to-seat conversion and stable use of the tea table.

CN223890996UActive Publication Date: 2026-02-10TANGSHAN HUADA GENERAL CORP
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Patent Information

Application Number
CN202521027940.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-02-10
Estimated Expiration
2035-05-23

AI Technical Summary

Technical Problem

After the sleeper berths on the train are converted into seats, the tea table needs to be repeatedly connected and fixed to the wall, which is a cumbersome operation, and the large size of the tea table surface makes the structure unstable.

Method used

Design a tea table structure comprising a support frame, a first paving body, a second paving body, a tea table, connecting rods, and connecting angle irons. The paving bodies are stacked and unfolded through a four-bar linkage. The support frame is fixed to the side wall of the train. The paving bodies can rotate and slide through slide rails and support shafts. The tea table is fixed to the paving bodies through connecting angle irons. The support shafts are arranged perpendicular to the paving bodies. The four-bar linkage ensures the stability of the structure.

Benefits of technology

It achieves easy conversion between chairs and tables, requires no repeated connection and fixing, has a tea table area similar to that of a normal tea table on a train, and has good structural stability.

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Abstract

The utility model relates to a tea table structure for berth-chair conversion, and belongs to the technical field of train appliances. According to the technical scheme, a second berth body and a first berth body can be stacked together or unfolded to form a plane through a four-bar mechanism; the second berth body and the first berth body are stacked and then rotate by 90 degrees along the supporting shaft of the support, the supporting shaft slides on the sliding way of the first berth body at the same time, the tea table is in a horizontal state, and the movable berth becomes a tea table structure. The second berth body and the first berth body are unfolded to form a plane, the side face of the tea table makes contact with the bottom plate to play a supporting role, the movable berth and the fixed berths on the two sides are flush to form a complete berth face, and the berth face and the fixed berths form the sleeping berth structure together. The tea table has the advantages of being simple and reliable in structure, fast, simple and convenient in paving and chair conversion mode and stable in structure.
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