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1. 发明公开

EP4056511A1 ELEVATOR DEVICE 审中-公开
公开(公告)号：EP4056511A1
公开(公告)日：2022-09-14
申请号：EP19951955.4
申请日：2019-11-08
申请人： Hitachi, Ltd.
发明人： KUBO Yosuke , HAYAKAWA Tomohisa , ZAMA Hidetaka
IPC分类号： B66B5/22 , B66B5/06
摘要： An elevator device having a safety gear is disclosed that makes it possible to prevent a braking state detecting switch from being turned on in case of power interruption, while becoming activated by an electrically operated actuator. This elevator device includes a safety gear which is provided onto an elevator car and an electrically operated actuator which activates the safety gear and has a braking state detecting switch (6) to detect a braking state of the safety gear. The braking state detecting switch (6) is actuated by a mechanism (10, 82, 83) which is mobilized by a braking element (51) of the safety gear. Displacement of the braking element (51) when power supply is lost keeps the braking state detecting switch (6) in an off state. Displacement of the braking element (51) in a braking by the safety gear turns on the braking state detecting switch (6).

2. 发明公开

EP4349757A1 EMERGENCY STOP DEVICE, ELEVATOR, AND METHOD OF RESTORING EMERGENCY STOP DEVICE 审中-公开
公开(公告)号：EP4349757A1
公开(公告)日：2024-04-10
申请号：EP22811067.2
申请日：2022-04-18
申请人： Hitachi, Ltd.
发明人： HAYAKAWA Tomohisa , ZAMA Hidetaka , ITO Yasushi , KUBO Yosuke
IPC分类号： B66B5/22
摘要： An emergency stop apparatus includes a braking mechanism, a pull-up member, a driving mechanism, and an actuating mechanism. The pull-up member is connected to a brake element of the braking mechanism. The driving mechanism includes a connecting part connected to the pull-up member, and causes the braking mechanism to operate. The actuating mechanism is connected to the driving mechanism and actuates the driving mechanism. The connecting part allows only force to an upper side in an ascending-and-descending direction to be transmitted to the pull-up member.

3. 发明公开

EP4005960A1 ELEVATOR APPARATUS 审中-公开
公开(公告)号：EP4005960A1
公开(公告)日：2022-06-01
申请号：EP19938252.4
申请日：2019-07-23
申请人： Hitachi, Ltd.
发明人： KUBO Yosuke , HAYAKAWA Tomohisa , ZAMA Hidetaka
IPC分类号： B66B5/00 , B66B5/18
摘要： An elevator apparatus provided with a safety gear is disclosed which is adapted to prevent the turn-on of a brake state detection switch during power outage even while being operated by an electric actuator. This elevator apparatus includes: a safety gear 5 disposed at a car 1; and an electric actuator 3 for operating the safety gear. The elevator apparatus further includes a brake state detection switch 6 for detecting a brake state of the safety gear. The brake state detection switch is operated by a mechanism 8 which operates the safety gear with an operation of the electric actuator. The brake state detection switch is in an off state for a displacement of the mechanism during interruption of power supply. The brake state detection switch is turned on for the displacement of the mechanism during the brake of the safety gear.

4. 发明授权

EP3255009B1 ELECTROMAGNETIC BRAKE DEVICE FOR ELEVATOR 有权
公开(公告)号：EP3255009B1
公开(公告)日：2020-03-11
申请号：EP16746389.2
申请日：2016-01-15
申请人： Hitachi, Ltd.
发明人： HAYAKAWA Tomohisa , ONO Tetsuji , ITO Seiya
IPC分类号： B66B11/08 , F16D65/22 , F16D121/22 , B66B11/04 , B66D5/08 , B66D5/30

5. 发明公开

EP3255009A1 ELECTROMAGNETIC BRAKE DEVICE FOR ELEVATOR 审中-公开
标题翻译：用于电梯的电磁制动装置
公开(公告)号：EP3255009A1
公开(公告)日：2017-12-13
申请号：EP16746389.2
申请日：2016-01-15
申请人： Hitachi, Ltd.
发明人： HAYAKAWA Tomohisa , ONO Tetsuji , ITO Seiya
IPC分类号： B66B11/08 , F16D65/22 , F16D121/22
CPC分类号： B66B11/08 , B66B11/04 , B66D5/08 , B66D5/30 , F16D65/22
摘要： Provided is an electromagnetic brake device for braking a hoist for elevator, which is structured to be compact and to exhibit excellent low noise property (especially lessening releasing operation sound). An electromagnetic brake (26) according to the invention includes a movable element (5) provided with a brake shoe (8) for braking an object to be braked (15) while abutting on the object to be braked (15) mounted on a hoist (10) for lifting and lowering a car (9), and a main body (3) provided with a braking spring (2) for applying a braking force by urging the movable element (5) on the object to be braked (15) and an electromagnetic coil (1) for attracting the movable element (5) against the spring force of the braking spring (2). The device includes a metal urging mechanism (4) for urging the movable element (5) in accordance with a displacement of the movable element (5) from the main body (3) to the object to be braked (15) so as to increase a force acting in the direction opposite a displacement direction of the movable element (5) in proportion to displacement from the main body (3) to the object to be braked (15).
摘要翻译：本发明提供一种电梯用曳引机的电磁制动装置，该电梯用电梯的结构紧凑，并且具有优异的低噪音特性（尤其是减轻释放操作音）。根据本发明的电磁制动器（26）包括设置有制动蹄（8）的可移动元件（5），所述制动蹄（8）用于制动待制动物体（15），同时抵靠安装在起重机上的待制动物体（10）和升降轿厢（9）的主体（3）;以及具有通过将可动件（5）推压在制动对象物（15）上而施加制动力的制动弹簧（2）的主体（3）和用于克服制动弹簧（2）的弹力吸引可动元件（5）的电磁线圈（1）。该装置包括用于根据可移动元件（5）从主体（3）到被制动物体（15）的位移来推动可移动元件（5）以便增大的金属推动机构（4）与从主体（3）到待制动物体（15）的位移成比例地沿着与可移动元件（5）的位移方向相反的方向作用的力。

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