EMERGENCY STOP DEVICE FOR ELEVATOR
PROBLEM TO BE SOLVED: To obtain an emergency stop device for an elevator which can further surely suppress the destabilization of a friction force which is generated between a guide rail and a brake body.SOLUTION: A brake body 22 of an emergency stop device for an elevator has: a brake body main bod...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To obtain an emergency stop device for an elevator which can further surely suppress the destabilization of a friction force which is generated between a guide rail and a brake body.SOLUTION: A brake body 22 of an emergency stop device for an elevator has: a brake body main body 31; a friction material 32 arranged at the brake body main body 31; a heat conduction material 33 which is arranged at the brake body main body 31, and higher than the friction material 32 in heat conductivity; and an elastic body 34 which is arranged between the heat conduction material 33 and the brake body main body 31. The heat conduction material 33 is displaceable with respect to the brake body main body 31 in a direction in which a protrusion amount of the heat conduction material 33 from the brake body main body 31 is changed. The elastic body 34 elongates and contracts by the displacement of the heat conduction material 33 with respect to the brake body main body 31. The brake body 22 is displaceable between a brake position in which the friction material 32 and the heat conduction material 33 contact with a rail brake face 10a, and a non-brake position in which the friction material and the heat conduction material separate from the rail brake face 10a.SELECTED DRAWING: Figure 3
【課題】ガイドレールと制動体との間で発生する摩擦力の不安定化をより確実に抑制することができるエレベータ用非常止め装置を得る。【解決手段】エレベータ用非常止め装置の制動体22は、制動体本体31と、制動体本体31に設けられた摩擦材32と、制動体本体31に設けられ摩擦材32よりも熱伝導率の高い熱伝導材33と、熱伝導材33と制動体本体31との間に配置された弾性体34とを有している。熱伝導材33は、制動体本体31からの熱伝導材33の突出量が変化する方向へ制動体本体31に対して変位可能になっている。弾性体34は、制動体本体31に対する熱伝導材33の変位によって伸縮する。制動体22は、摩擦材32及び熱伝導材33をレール制動面10aに接触させる制動位置と、レール制動面10aから離れる非制動位置との間で変位可能になっている。【選択図】図3 |
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