Double-Folding Workbench with Three-Part Tabletop and Telescopic Legs

The problem

Portable workbenches used on job sites or in small workshops typically offer a single flat surface. When a worker needs to support long stock for cutting, they must bring a separate saw stool or improvise with sawhorses. Switching between tasks means moving equipment around, which takes time and floor space. Furthermore, many folding tables use simple hinges that lack rigidity when extended, causing the surface to wobble under lateral pressure. Storage is another issue: even when folded, basic designs leave the legs protruding or the tabletop too thick to slide into a vehicle easily. A bench that can change its profile, hold fixtures securely, and pack down tightly addresses these daily friction points for tradespeople and DIY users alike.

The solution

The patent describes a double-folding workbench built around a central cross-member (1) with two hinged side plates.

1. A left deck plate (11) and a right deck plate (12) attach to the cross-member (1) via folding racks (6). Both plates contain multiple mounting holes (18) that penetrate vertically, arranged in a matrix pattern to accept standard workshop fixtures.
2. The upper face of the cross-member (1) has a recessed mounting groove (10) extending from one end to the other. The groove’s cross-section is rectangular in the upper portion and isosceles trapezoidal in the lower portion, meaning the first half’s width is less than the lower half’s width.
3. Tripod support elements (4), which are U-shaped, are fixed to both ends of the cross-member (1). Each element consists of an end support plate and two side support plates.
4. Two foot levers hinge onto each tripod support element (4). Every foot lever uses an inner foot rod (41) socketed inside an outer foot rod (42). The inner rod has several adjustment holes (43) that align with a location hole on the outer rod.
5. A telescoping control (5) sits at the location hole, using a pin member (51) pushed by a spring (52) to lock the height.
6. The folding rack (6) forms a triangular linkage using a first rod piece (61), a second rod piece (62) with a horizontal sliding slot (65), an inclined third rod piece (63), and a fourth rod piece (64) held by an elastic torsional spring (69) to engage a limiting slot (60) for stability when open.

Who it is for

• Power tool brands looking to bundle a dedicated saw stool and workbench with their miter saws or circular saws for retail kits.
• Contractors and carpenters who move between job sites daily and need a rigid, adjustable-height surface that fits inside a van when folded.
• Home improvement retailers selling to DIY customers who lack space for a permanent workbench but require a sturdy platform for weekend projects.
• Wholesalers of workshop equipment seeking a compact, dual-function product that reduces SKU counts by replacing separate sawhorses and assembly tables.

How it works

The main parts

Operating steps

1. Unfold the legs - Pull the outer foot rods (42) down. Align the desired adjustment hole (43) on the inner foot rod (41) with the location hole on the outer rod. Press the telescoping switch part (54) to release the pin member (51), set the height, and let the spring (52) push the pin back in to lock.
2. Extend the tabletop - Lift the left deck plate (11) and right deck plate (12) outward. The folding rack (6) opens as the third rod piece (63) slides along the sliding slot (65) of the second rod piece (62). The elastic torsional spring (69) forces the fourth rod piece (64) so its limiting slot (60) engages the third shaft (67), locking the plates flat.
3. Mount fixtures - Insert clamps, stops, or guides into the mounting holes (18) on the deck plates or slide them into the mounting groove (10) on the cross-member (1).
4. Fold for transport - Disengage the limiting slot (60) from the third shaft (67) to collapse the folding racks (6), dropping the deck plates downward. Retract the legs using the telescoping control (5).

Applications

Carpentry and trim work

Carpenters installing baseboards or crown molding need a stable surface to measure and cut. The mounting holes allow them to fix a stop block, while the recessed groove holds a straight edge. The telescopic legs let them match the bench height to their existing saw stand.

Job-site material prep

On construction sites, workers frequently cut hardware or prepare fasteners. Setting this workbench up takes seconds because the folding racks lock mechanically without tools. When the task shifts to another room, the folded unit is carried like a briefcase.

DIY garage projects

Home users often lack the floor space for a permanent woodworking table. This design folds down so it can be hung on a wall hook or slid behind shelving. The matrix of mounting holes accepts common hobbyist clamps for gluing or painting small assemblies.

Miter saw support

When cutting long lumber with a miter saw, the outfeed side needs support at the exact same height. The adjustable inner and outer foot rods allow precise leveling. The deck plates provide a broad, flat landing area for the offcut.

Where it is less suitable

• Heavy industrial machining - the tubular legs and hinged plates are designed for hand tools and portable power tools, not the vibration or weight of stationary milling machines.
• Permanent assembly lines - factory stations generally require fixed, bolted-down benches rather than folding mechanisms intended for portability.