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US 11,912,538 B2Granted
Double impact area buffer for improved plank
AssigneeOtis Elevator Company
InventorsJavier Munoz Sotoca, Luis Mena
Life of this patent
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Abstract
A buffer device (121) for an elevator system (100), the buffer device (121) including a first contact structure (501) and a second contact structure (503). The first contact structure (501) includes a first contact surface (505), and the second contact structure (503) includes a second contact surface (507). 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).
Claims14
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 first contact structure (501) has a first contact area (505);
- wherein the second contact structure (503) has a second contact area (507);
- and wherein the ratio of the first contact area (505) to the second contact area (507) is between 0.5 and 1.0.
10 more elements
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 first contact structure (501) and the second contact structure (503) are formed from the same material.
8 more elements
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 first buffer strike surface (401) comprises a cross-beam of the frame and the second buffer strike surface (403) comprises a safety plank of the frame.
8 more elements
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).
8 more elements
Dependencies are inferred from the claim text.