IP Library › Granted Patent US 12,643,607
Granted Patent B2
US 12,643,607 · App. 18/488,610 · Granted Jun 2, 2026

Sliding frame for trailers

Inventors: Zhiqiang Wu (Taishan City, CN); Heng Zhang (Taishan City, CN)
Assignee: GUANGDONG FUWA HEAVY INDUSTRIES CO., LTD.
B62D21/14B62D21/20B62D53/067
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Quick Facts
Patent No.
US 12,643,607
App. No.
18/488,610
Granted
Jun 2, 2026
Kind
B2
Abstract

Provided is a sliding frame for trailers, which includes a side beam, wherein the side beam includes a horizontally extending top wall and a vertically extending side wall, an upper surface of the top wall is provided with a wear-resistant pad extending along the length direction of the side beam; a guide rail clip is fixed on an outer surface of the side wall, wherein the guide rail clip includes a connection part fixed to the side wall, and a limiting part located above the connection part, and a backing plate is sandwiched between the connection part and the side wall, a part of the backing plate extends upward to an inner side of the limiting part, and a gap with openings at the top and both front and rear ends is formed between the limiting part and the backing plate.

Claims (16)

1 . A sliding frame for trailers, comprising a side beam, wherein the side beam includes a horizontally extending top wall and a vertically extending side wall, an upper surface of the top wall is provided with a wear-resistant pad extending along the length direction of the side beam; a guide rail clip is fixed on an outer surface of the side wall, the guide rail clip includes a connection part fixed to the side wall, and a limiting part located above the connection part, the connection part is plate-shaped, and a backing plate is sandwiched between the connection part and the side wall, a part of the backing plate extends upward to an inner side of the limiting part, and a gap with openings at the top and both front and rear ends is formed between the limiting part and the backing plate; the connecting part and the backing plate are removably connected to the side wall;

wherein a top edge of the backing plate extends to and is flush with a top of the side wall.

2 . The sliding frame for trailers of claim 1 , wherein, the backing plate is a plastic plate or composite material plate.

3 . The sliding frame for trailers of claim 1 , wherein, the limiting part includes a first section bent from a top of the connecting part in a direction away from the side wall, a second section located above the first section and spaced apart from the first section, and a third section connected between the first section and the second section.

4 . The sliding frame for trailers of claim 1 , wherein, the connecting part, the backing plate and the side wall are connected together by bolts or rivets crossing them.

5 . The sliding frame for trailers of claim 1 , wherein, the sliding frame for trailers further includes a lock pin, the side wall is provided with a through hole, the lock pin is inserted into the through hole, a driving mechanism is provided on an inner side of the lock pin, which is used to drive the lock pin to move between a first position protruding from an outer surface of the side wall and a second position located in an inner side of the side wall.

6 . The sliding frame for trailers of claim 5 , wherein, the backing plate is located at a periphery of the through hole.

7 . The sliding frame for trailers of claim 5 , wherein, the backing plate is arranged around the through hole, and the backing plate is provided with an avoidance hole for the lock pin to pass through.

8 . The sliding frame for trailers of claim 1 , wherein, the sliding frame assembly for trailers includes two opposite side beams and at least two cross beams connected between the two side beams.

9 . A sliding frame for trailers, comprising a side beam, wherein the side beam includes a horizontally extending top wall and a vertically extending side wall, an upper surface of the top wall is provided with a wear-resistant pad extending along the length direction of the side beam; a guide rail clip is fixed on an outer surface of the side wall, the guide rail clip includes a connection part fixed to the side wall, and a limiting part located above the connection part, the connection part is plate-shaped, and a backing plate is sandwiched between the connection part and the side wall, a part of the backing plate extends upward to an inner side of the limiting part, and a gap with openings at the top and both front and rear ends is formed between the limiting part and the backing plate; the connecting part and the backing plate are removably connected to the side wall;

wherein the sliding frame for trailers further includes a lock pin, the side wall is provided with a through hole, the lock pin is inserted into the through hole, a driving mechanism is provided on an inner side of the lock pin, which is used to drive the lock pin to move between a first position protruding from an outer surface of the side wall and a second position located in an inner side of the side wall;

wherein the backing plate is arranged around the through hole, and the backing plate is provided with an avoidance hole for the lock pin to pass through.

10 . The sliding frame for trailers of claim 9 , wherein, the backing plate is a plastic plate or composite material plate.

11 . The sliding frame for trailers of claim 9 , wherein, the limiting part includes a first section bent from a top of the connecting part in a direction away from the side wall, a second section located above the first section and spaced apart from the first section, and a third section connected between the first section and the second section.

12 . The sliding frame for trailers of claim 9 , wherein, the connecting part, the backing plate and the side wall are connected together by bolts or rivets crossing them.

13 . The sliding frame for trailers of claim 9 , wherein, the sliding frame assembly for trailers includes two opposite side beams and at least two cross beams connected between the two side beams.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2023
From: WU, ZHIQIANG; ZHANG, HENG
To: GUANGDONG FUWA HEAVY INDUSTRIES CO., LTD.
Reel/Frame 065256/0276 →
Priority Claims (1)
CN 202310795934.8 · Jul 1, 2023 · national
Continuity (1)
Related Publication 20250002087A1 · Jan 2, 2025
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