Trestle stage

• US 5,918,551 A
• Filed: 02/04/1998
• Issued: 07/06/1999
• Est. Priority Date: 02/04/1998
• Status: Expired due to Fees

• Current Assignee: Ching Rong Liu
• Original Assignee: Ching Rong Liu
• Inventors: Liu, Ching Rong
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): WILKENS, JANET MARIE
• Application Number:
  US09/018,560
• Time in Patent Office: 517 Days
• Field of Search: 108/51.3, 108/53.1, 108/55.1, 108/55.3, 108/56.1, 108/56.3, 108/57.29, 108/91, 108/186, 108/901, 108/902, 206/386, 206/600, 206/595, 248/346.01, 248/346.02, 211/188, 211/194
• US Class Current: 108/55.1
• CPC Class Codes: B65D 19/10 of skeleton construction, e.g. made of wire
• CPC Class Codes: B65D 19/385 Frames, corner posts or pallet converters, e.g. for facilitating stacking of charged pallets
• CPC Class Codes: B65D 2519/00029 Wood
• CPC Class Codes: B65D 2519/00064 Wood
• CPC Class Codes: B65D 2519/00164 Metal
• CPC Class Codes: B65D 2519/00233 Metal
• CPC Class Codes: B65D 2519/00268 made of one piece
• CPC Class Codes: B65D 2519/00288 made of one piece
• CPC Class Codes: B65D 2519/00318 made of one piece
• CPC Class Codes: B65D 2519/00512 skeleton type
• CPC Class Codes: B65D 2519/00626 sidewalls connected via corner posts
• CPC Class Codes: B65D 2519/00696 corner posts maintained connected to pallet by means of auxiliary locking elements, e.g. spring loaded locking pins
• CPC Class Codes: B65D 2519/00796 Guiding means for fork-lift
• CPC Class Codes: B65D 2519/0096 when empty
• CPC Class Codes: B65D 2519/0097 through corner posts
• CPC Class Codes: B65D 2519/00995 detachable elements of the side wall, i.e. not the whole wall
• CPC Class Codes: Y10S 108/901 Synthetic plastic industrial platform, e.g. pallet

Abstract

A trestle stage comprises a plyboard and a plurality of supporting beams wherein the plyboard is provided with an embedding groove on each corner thereof and a through hole on the position of each embedding groove, and each supporting beam has embedding plates on both its ends to engage with the embedding grooves and embedding piece corresponding to the respective through hole, such that two plyboard can be kept with constant separation by the supporting beams therebetween and the inventory therein can be stored in layer-fashion without deformation.

Claims

1. A trestle stage comprising:

(a) a rectangular-shaped plyboard having a top side and a bottom side, each corner of the top side and the bottom side being provided with a recessed embedding groove formed therein and a through hole formed in a bottom wall of the embedding groove, the through hole extending through the plyboard;

(b) a plurality of supporting beams, each beam having two opposite ends, each end including an embedding plate and an embedding piece extending outwardly of the embedding plate;

(c) the embedding piece and embedding plate of each end being respectively engagable within the through hole and the embedding groove of any corner to secure the end of the beam to the corner; and

(d) wherein plural plyboards may be secured together in a spaced relationship by securing the opposite ends of four beams to opposing corners of adjacent plyboards, thereby permitting a load to be securely supported by each plyboard without defamation of the load.

2. The trestle stage of claim 1 further including at least one additional auxilliary embedding groove formed within each of the top and bottom sides of the plyboard and positioned between two lateral corners thereof, an auxilliary through hole formed in a bottom wall of each auxilliary embedding groove and extending through the plyboard, and an auxilliary beam including an auxilliary embedding plate and the auxilliary embedding piece extending outwardly of the plate for, respectively, engaging one of the auxilliary embedding grooves and the auxilliary through holes.

3. The trestle stage of claim 1 further including a mechanical fastener for securing each embedding plate to the bottom wall of a respective embedding groove.

4. The trestle stage of claim 1 further including a mesh extendable between adjacent beams secured to the plyboard to define a basket for containing a small load.

5. The trestle stage of claim 1 further including a wheel attached to at least one of the corners of the bottom side of the plyboard for permitting the trestle stage to be transported on a supporting surface.