Telescopic Folding Table with Extension Panel and Built-In Trolley

The problem

Event organizers, tailgaters, and vendors often need different table lengths at the same venue, but carrying multiple tables takes up vehicle space and requires extra labor. Standard folding tables come in one fixed size. When a longer surface is needed, users push two separate tables together, leaving an uneven seam that catches plates and cups. After the event, loading heavy folding tables into a truck strains workers’ backs, especially when the ground is unpaved or the distance from the setup area to the vehicle is long.

The solution

This telescopic folding table addresses both the sizing and the transport issues within a single unit.

1. The tabletop (100) consists of a left main panel (1a) and a right main panel (1b). Both are hollow blow-molded parts.
2. Each main panel connects to the supporting frame (4) through a sliding mechanism. By pulling the panels apart along the length direction, a neutral position (10) opens between them.
3. A movable panel (1c) fits exactly into this neutral position (10), extending the table’s length. One movable panel is described in the preferred embodiment, though more than one is possible.
4. The butt joint surfaces of all three panels carry staggered grooves (14) and lugs (13). When pushed together, the lugs (13) of one panel embed into the grooves (14) of the next, locking the upper surfaces flush.
5. When the table is folded, the supporting frame (4) pivots around shafts (411) of the pivot devices (41), and the foot rest units (2) fold inward.
6. Two pulley pieces (3) with wheels (31) are mounted at the bottom of the tabletop (100). In the unfolded state, they fold flat against the bottom. In the folded state, they extend downward to contact the ground.
7. A pull rod (5) sits in a T-shape relative to the pulley pieces (3) and slides out from the edge of the tabletop (100) to serve as a towing handle, converting the folded table into a trolley.

Who it is for

• Outdoor furniture brands looking for a multi-size folding table that stands out from standard bi-fold models in catalogs and retail aisles.
• Event rental companies that set up banquets, trade shows, and parties, where crews need to change table lengths quickly and move gear across parking lots without hand-carrying every piece.
• Wholesalers supplying big-box retailers who sell blow-molded tables for tailgating, camping, and home use, and want a product with a visible functional difference on the shelf.
• Catering equipment distributors serving food trucks and pop-up vendors who require a compact table that rolls like a cart when broken down.

How it works

The main parts

Operating steps

1. Unfold the table - Swing the foot rest units (2) outward until the supporting frame (4) locks. The pulley pieces (3) fold up flat against the tabletop bottom.
2. Extend the surface - Pull the main panels (1a, 1b) apart. The sliding rails (8) glide along the longitudinal support rods (42), guided by the pin blocking pieces (9) inside the sliding grooves (81). Stop when the neutral position (10) matches the width of the movable panel (1c).
3. Insert the panel - Place the movable panel (1c) into the gap. Push the main panels inward so the lugs (13) and grooves (14) interlock, forming a continuous flat surface.
4. Convert to trolley - Remove the movable panel (1c) and clip it to a leg (21) using the clamping pieces (17). Fold the table flat. Swing the pulley pieces (3) down so the wheels (31) touch the ground. Pull the rod (5) outward and tilt the table to roll it.

Applications

Trade show booths

Exhibitors often need a short table for registration and a longer one for product displays later in the day. The sliding panels allow one table to serve both layouts without bringing a second unit. The trolley function lets staff roll the table across convention center floors instead of carrying it.

Tailgating and camping

Tailgaters unload gear in parking lots far from their spots. A folding table that rolls on its own wheels saves trips to the vehicle. The hollow blow-molded panels resist moisture and wipe clean after outdoor meals.

Catering and buffet lines

Caterers adjust buffet lengths depending on guest counts. The insert panel bridges the gap smoothly because the interlocking lugs prevent plates from rocking over a seam. The corner jack holds a lamp pole for evening events.

Community and club events

Volunteers setting up community halls often lack dollies or carts. The built-in pull rod and wheels mean the folded table moves like luggage. The C-shaped clips keep the insert panel attached to the legs so it does not get lost in storage.

Home workshops and garages

Homeowners use folding tables for projects and fold them away afterward. The movable panel provides extra length for large assemblies, and the trolley mode helps move heavy tools stacked on the folded surface across a concrete floor.

Where it is less suitable

• Heavy industrial workbenches - blow-molded panels are designed for general loads, not for mounting heavy vises or machinery.
• Permanent dining furniture - the visible pivot mechanisms and hollow panels suit utility use rather than formal interiors.
• Tables requiring built-in power outlets - the patent describes no electrical routing or socket integration.