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US 2022/0177272 A1Published application
Safety brake device and safety brake method
AssigneeInventio AG
InventorsHans Blochle, Adrian Steiner, Daniel Meierhans, Julian Stahli
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AssigneeInventio AG
InventorsHans Blochle, Adrian Steiner, Daniel Meierhans, Julian Stahli
Estimating the term…
The invention relates to a method and a device for safety braking for an elevator (1) having an upright guide rail (3). The safety brake device (4) comprises a housing (5) having braking elements (6, 7) which are arranged on both sides of the guide rail (3) and are movable along the guide rail (3), a safety restraint (8) on both sides between the housing (5) and the braking elements (6, 7), and a clampable and lockable actuating device (9) for the braking elements (6, 7), which unlocks and unclamps in response to a triggering event and brings the braking elements (6, 7) into braking engagement with the guide rail (3). The actuating device (9), when it is unclamped, develops a feed force (F) and feed movement directed transversely to the longitudinal axis (15) of the guide rail (3), which brings the braking elements (6, 7) on both sides into engagement with the guide rail (3) from a laterally distanced initial position, wherein the braking elements (6, 7) are entrained by frictional contact on the guide rail (3) and enter the safety restraint (8), and wherein the actuating device (9) is moved back into its initial position and clamped and locked by the braking elements (6, 7) located in the safety restraint (8).
Safety brake device for an elevator (1) having an upright guide rail (3), the safety brake device (4) comprising a housing (5) having braking elements (6, 7) which are arranged on both sides of the guide rail (3) and are movable along the guide rail (3), a safety restraint (8) on both sides between the housing (5) and the braking elements (6, 7), and a clampable and lockable actuating device (9) for the braking elements (6, 7), the actuating device (9) unlocking and unclamping in response to a triggering event and bringing the braking elements (6, 7) into braking engagement with the guide rail (3), characterized in that the actuating device (9) is designed such that, when it is unclamped, it develops a feed force (F) and feed movement directed transversely to the longitudinal axis (15) of the guide rail (3), which brings the braking elements (6, 7) on both sides into engagement with the guide rail (3) from a laterally distanced initial position, the braking elements (6, 7) being entrained by frictional contact on the guide rail (3) and entering the safety restraint (8), and in that the actuating device is moved back into its initial position and clamped and locked by the braking elements (6, 7) located in the safety restraint (8).
Safety brake device according to any of the preceding claims, characterized in that the safety brake device (1) has a trigger (12) which is connected to the locking device (11).
Safety brake device according to any of the preceding claims, characterized in that the safety brake device (1) has a guide device (18) for the braking elements (6, 7).
Safety brake device according to any of the preceding claims, characterized in that the safety restraint (8) is rigid or resilient.
Safety brake device according to any of the preceding claims, characterized in that the safety restraint (8) is formed between the braking elements (6, 7) and one or more support means (16) arranged on the housing (5).
Safety brake device according to any of the preceding claims, characterized in that the safety restraint (8) is designed as a wedge restraint.
Safety brake device according to any of the preceding claims, characterized in that the braking elements (6, 7) are designed as brake shoes (19), in particular wedge shoes.
Method for safety braking for an elevator (1) having an upright guide rail (3) by means of a safety brake device (4) which has a housing (5) having braking elements (6, 7) which are arranged on both sides of the guide rail (3) and are movable along the guide rail (3), a safety restraint (8) on both sides between the housing (5) and the braking elements (6, 7), and a clampable and lockable actuating device (9) for the braking elements (6, 7), the actuating device (9) unlocking and unclamping in response to a triggering event and bringing the braking elements (6, 7) into braking engagement with the guide rail (3), characterized in that the actuating device (9), when it is unclamped, develops a feed force (F) and feed movement directed transversely to the longitudinal axis (15) of the guide rail (3), which brings the braking elements (6, 7) on both sides into engagement with the guide rail (3) from a laterally distanced initial position, the braking elements (6, 7) being entrained by frictional contact on the guide rail (3) and entering the safety restraint (8), and the actuating device (9) being moved back into its initial position and clamped and locked by the braking elements (6, 7) located in the safety restraint (8).
Dependencies are inferred from the claim text.