CPC B66B 5/18 (2013.01) [B66D 5/30 (2013.01)] | 12 Claims |
1. An elevator system (1), comprising:
an elevator car (2) including:
a first safety brake (8, 8′), comprising a first electronic safety actuator (512, 612), wherein the first safety brake (8, 8′) is positioned on a first side of the elevator car (2, 2′) at a first height (20, 20′); and
a second safety brake (10, 10′), comprising a second electronic safety actuator (512, 612), wherein the second safety brake (10, 10′) is positioned on a second side of the elevator car (2, 2′) at a second height (22, 22′);
wherein the first height is different to the second height;
a hoistway (4);
a first guide rail (6a), located on a first side of the hoistway (4);
a second guide rail (6b), located on a second, opposite side of the hoistway (4);
wherein the elevator car (2) is arranged to travel along the hoistway (4) on the guide rails (6a, 6b) and wherein the first safety brake (8) and the second safety brake (10) each comprise a respective braking portion (514, 614), configured to engage with the respective first and second guide rails (6a, 6b) to brake motion of the elevator car (2);
an elevator system component (16) positioned on the first side of the hoistway (4) at the top or bottom of the hoistway (4), wherein the first side of the elevator car (2) is adjacent to the first side of the hoistway (4);
wherein the elevator car (2) has a vertical overlap with the elevator system component (16) when the elevator car (2) is in its uppermost or lowermost position within the hoistway (4); and
wherein the first height (20) is such that the first safety brake (8, 8′) is positioned between the elevator system component (16) and a vertical mid-height of the hoistway (4) when the elevator car (2) and the elevator system component (16) are vertically overlapped such that no safety brake is positioned at the same height as the elevator system component (16) when the elevator car (2) is in its uppermost or lowermost position within the hoistway (4).
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