US 12,065,183 B2
Modular extendable trolley
Carmelo Laudani, Kruszyn (PL); Silvia Laudani, Boleslawiec (PL); and Massimo Campochiaro, Boleslawiec (PL)
Appl. No. 17/923,807
Filed by Carmelo Laudani, Kruszyn (PL); Silvia Laudani, Boleslawiec (PL); and Massimo Campochiaro, Boleslawiec (PL)
PCT Filed Nov. 17, 2020, PCT No. PCT/EP2020/082424
§ 371(c)(1), (2) Date Nov. 7, 2022,
PCT Pub. No. WO2021/233566, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 20175715.0 (IT), filed on May 20, 2020.
Prior Publication US 2023/0174128 A1, Jun. 8, 2023
Int. Cl. B62B 3/02 (2006.01)
CPC B62B 3/02 (2013.01) [B62B 2206/02 (2013.01); B62B 2207/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A modular extendable trolley (100) including: a front module (1) of a loading and unloading floor; a rear module (2) of the loading and unloading floor; a connection module (3) between the front module (1) and the rear module (2): four wheels (4, 40, 4′, 40′) to move the trolley; a drawbar (10) to direct the trolley; a tow hook (11) for hooking an additional trolley into a train of trolleys, the trolley (100) being characterized in that said front module (1) and said rear module (2) of the loading and unloading floor comprises extensible side portions (1′, 1″, 2′, 2″) and said connection module (3) comprises a longitudinal portion (3′) extendable to vary the dimensions of the trolley (100); and wherein the extensible side portions (1′, 1″, 2′, 2″) have an elongation made by an articulated system (8) positioned inside the font module (1) and the rear module (2) of the loading and unloading floor; and wherein the articulated system (8) comprises a plurality of crank elements (8′) and a plurality of end crank elements (8″) articulated together.