US 11,912,538 B2
Double impact area buffer for improved plank
Javier Munoz Sotoca, Madrid (ES); and Luis Mena, Madrid (ES)
Assigned to OTIS ELEVATOR COMPANY, Farmington, CT (US)
Filed by Otis Elevator Company, Farmington, CT (US)
Filed on Jun. 22, 2022, as Appl. No. 17/846,836.
Prior Publication US 2023/0202799 A1, Jun. 29, 2023
Int. Cl. B66B 5/28 (2006.01); B66B 11/02 (2006.01)
CPC B66B 5/282 (2013.01) [B66B 5/284 (2013.01); B66B 11/0273 (2013.01)] 14 Claims
OG exemplary drawing
 
4. An elevator system comprising:
a hoistway (103);
an elevator car (101) and/or a counterweight (109) arranged to move within the hoistway (103);
a buffer device (121) including:
a first contact structure (501) and a second contact structure (503);
wherein the first contact structure (501) comprises a first contact surface (505);
wherein the second contact structure (503) comprises a second contact surface (507);
wherein the first contact surface (505) and the second contact surface (507) are arranged for contacting respective vertically offset surfaces of an elevator car (101) or counterweight (109);
wherein the buffer device (121) is positioned at a bottom of the hoistway beneath the elevator car (101) and/or the counterweight (109);
wherein the elevator car (101) and/or counterweight (109) comprises a first buffer strike surface (401) and a second buffer strike surface (403);
wherein the first buffer strike surface (401) is arranged to contact the first contact surface (505) of the buffer device (121), and wherein the second buffer strike surface (403) is arranged to contact the second contact surface (507) of the buffer device (121);
wherein the second buffer strike surface (403) comprises an hole (405), wherein the hole (405) is larger than the first contact surface (505) of the buffer device (121), the first contact surface (505) positioned to pass through the hole (405) and contact the first buffer strike surface (403).