| 摘要 |
The invention provides an emergency braking device of an elevator, which does not cause large size and furthermore can control a braking force in braking in a range that does not exceed a preset value. The emergency braking device of the elevator presses a braking shoe on a guide rail and make the braking shoe slide on the guide rail for generating a braking force when an elevator cage drops in a speed which exceeds a limited speed. The emergency braking device of the elevator has components of: an upper elastomer and a lower elastomer which applies a pressing force to the guide rail on the braking shoe in braking; an oblique member with an oblique surface which opposes the oblique surface of the braking shoe at the opposite side of the guide rail; rollers which are arranged between the oblique surface of the braking shoe and the oblique surface of the oblique member; and an emergency braking device which supports the components. The emergency braking device of the elevator further comprises the components of: a second oblique member which opens the upper elastomer when the braking force exceeds a preset value, a third oblique member with an oblique surface which opposes the oblique surface of the second oblique member, and rollers which are arranged between the oblique surface of the second oblique member and the oblique surface of the third oblique member. |
