Robust electrical safety actuation module

Patent metadata

Field	Value
Publication number	US-10584014-B2
Application number	US-201515781898-A
Country	US
Kind code	B2
Filing date	Dec 7, 2015
Priority date	Dec 7, 2015
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

An elevator electrical safety actuation system and method are provided. The system includes an actuation device configured to operate a brake device. The actuation device includes a locking mechanism ( 542 ), a first portion ( 534 ) configured to be engaged and retained by the locking mechanism ( 542 ) in a first portion-first state and moveable to a second state wherein the first portion is not retained by the locking mechanism ( 542 ), a second portion ( 536 ) in contact with the first portion ( 534 ) when the second portion ( 536 ) is in a second portion-first state and the first portion ( 534 ) is in the first portion-first state, the second portion ( 536 ) moveable to a second portion-second state, wherein the second portion ( 536 ) is operably connected to the brake device, and a resetting mechanism ( 546 ) configured to force the first portion ( 534 ) from the first portion-second state to the first portion-first state.

First claim

What is claimed is:

1. An elevator electrical safety actuation system comprising:
an actuation device configured to operate a brake device, wherein the actuation device comprises:
a locking mechanism;
a first portion configured to be engaged and retained by the locking mechanism in a first portion-first state and moveable to a first portion-second state wherein the first portion is not retained by the locking mechanism;
a second portion in contact with the first portion when the second portion is in a second portion-first state and the first portion is in the first portion-first state, the second portion moveable to a second portion-second state, wherein the second portion is operably connected to the brake device; and
a resetting mechanism configured to force the first portion from the first portion-second state to the first portion-first state,
wherein the second portion is configured to remain in the second portion-second state while the first portion is movable by the resetting mechanism.

2. The system of claim 1 , further comprising a housing configured to house the actuation device.

3. The system of claim 2 , wherein the housing comprises a first housing configured to house the locking mechanism, the first portion, and the second portion, and a second housing configured to house the resetting mechanism.

4. The system of claim 1 , wherein the resetting mechanism is an electrical cylinder.

5. The system of claim 1 , wherein movement of the second portion from the second portion-first state to the second portion-second state operates the brake device.

6. The system of claim 5 , wherein a linkage operably connects the second portion to the brake device.

7. The system of claim 1 , further comprising a biasing mechanism configured to bias the first portion from the first portion-first state toward the first portion-second state.

8. The system of claim 1 , further comprising at least one guide wherein the first portion and the second portion are configured to move along the guide.

9. The system of claim 1 , wherein the locking mechanism is an electromagnet.

Assignees

• Otis Elevator Co
• Fauconnet Aurelien

Inventors

• Fauconnet Aurelien
• Beauchaud Frederic

Classifications

• B66B5/044

  Mechanical overspeed governors · CPC title

• B66B5/22 Primary

  by means of linearly-movable wedges (B66B5/24 takes precedence) · CPC title

• B66B5/18 Primary

  and applying frictional retarding forces · CPC title