elevator
An elevator and car technology, which is applied to elevators in buildings, lifting equipment in mines, elevators, etc., can solve the problems of increased space occupied by heavy wheels, difficulty, and easy collision, and achieves low cost, The effect of reducing workload and avoiding collisions
Active Publication Date: 2020-03-24
HITACHI LTD
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Problems solved by technology
In this case, the space occupied by the counterweight wheel in the width direction of the upper beam of the counterweight frame increases, so it is difficult to install it in the groove of the upper beam of the counterweight frame and the column
If a box-shaped safety cover is specially provided for the counterweight, under normal circumstances, the horizontal projection of the safety cover will greatly exceed the horizontal projection of other parts of the counterweight, so it is difficult to ensure that the counterweight moves up and down. Keep the required distance between the safety cover and other devices and instruments (such as the car) in the hoistway, which is prone to collision
Method used
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Embodiment Construction
[0017] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0018] figure 1 It is a schematic diagram briefly showing an embodiment of the elevator of the present invention. Such as figure 1 As shown, the elevator 100 includes a hoistway 102 , a car 104 , a counterweight device 106 , and a traction machine 110 . The elevator 100 is a machine-room-less elevator, and the hoisting machine 110 is also installed in the hoistway 102 . The car 104 and the counterweight device 106 are connected by a traction rope 108 . The traction rope 108 is wound on the traction sheave of the traction machine 110 . The hoisting machine 110 drives the car 104 and the counterweight device 106 through the hoisting rope 108 to make them go up and down in the hoistway 102 .
[0019] figure 2 It is a schematic structural view schematically showing the counterweight device 106 of the elevator ...
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An elevator including an elevator car that ascends and descends in a hoistway, a counterweight device linked to the elevator car by way of a rope, and a hoisting machine that drives the elevator car and the counterweight device by way of the rope, wherein the elevator is characterized in that the counterweight device is provided with: a pulley in which a rotary surface has a prescribed angle relative to the length direction of an upper frame, and on which the rope is wound about, the pulley being provided to the upper frame of a counterweight frame via a bracket; and an entanglement-preventing cover that is configured from a plurality of partial covers separable in the vertical direction, is secured to the bracket, and covers a side surface of the pulley, the entanglement-preventing cover having a bend part at an end part lateral to the partial covers such that a horizontal projection protrudes outward from a horizontal projection of the bracket, and being such that the horizontal projection of the bend part is adjacent to the horizontal projection of the bracket.
Description
technical field [0001] The present invention relates to an elevator. Background technique [0002] Elevators commonly used at present are traction elevators. This kind of elevator is driven by the traction machine and the counterweight device through the traction rope. According to the winding method of the traction rope adopted by the elevator, the counterweight device of many elevators is provided with counterweight wheels. Furthermore, in some countries or regions, safety regulations require that safety measures be taken around the counterwheel to prevent fingers and the like from being caught in the counterwheel. [0003] In the counterweight device disclosed in Japanese Patent Publication 2013-49530, the counterweight wheel is arranged in the groove of the counterweight frame upper beam 20 and column 18 made of channel steel (see the publication figure 1 ). The upper beam 20 and the column 18 of the counterweight frame can shield the side and the top of the counterw...
Claims
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IPC IPC(8): B66B5/00
CPCB66B5/00B66B5/005B66B7/06B66B11/00B66B17/12
Inventor 川端亮平假屋智贵
Owner HITACHI LTD