Abstract

A braking unit (4) for a stairlift, wherein the stairlift comprises a guide rail (2) and a braking carriage (1) slidable on the guide rail (2), the braking carriage (1) comprising the braking unit (4). The braking unit (4) comprises: a safety device (5) which can be moved to a safe condition to engage with the guide rail (2) blocking a sliding of the braking carriage (1); a detection device (6) designed to detect a speed of the braking carriage (1), when the braking carriage (1) slides on the guide rail (2), and is configured to connect to the safety device (5) to cause the movement of the safety device (5) in the safe condition, if the speed of the braking carriage (1) exceeds a predetermined maximum speed. The safety device (5) comprises a safety rotor (501). The detection device (6) comprises: a friction rotor (601), rotating relative to the safety rotor (501) around a first axis of rotation (R1) by the sliding of the braking carriage (1); a variation mechanism (603) acting in conjunction with and coupled to the friction rotor (601) and is configured to connect in a rotationally integral matter the safety rotor (501) with the friction rotor (601) when the speed of the carriage (1) is greater than the predetermined speed. The safety rotor (501) is configured to be rotated around a second axis of rotation (R2), parallel to the first axis of rotation (R1) when the safety rotor (501) and the friction rotor (601) are connected in an integral manner, the safety device (5) also comprising a tapered element (506) fixed to the safety rotor (501) which is configured to be positioned between the friction rotor (601) and the guide rail (2) for locking the safety device (5) in the safe condition and stopping the sliding of the braking carriage (1).

IPC Classes  ?

• B66B 5/22 - Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
• B66B 5/04 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
• B66B 9/08 - Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
• B66B 5/20 - Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of rotatable eccentrically- mounted members

Abstract

b) of the base portion (203) of the guide (2).

IPC Classes  ?

• B66B 9/08 - Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons

Abstract

A carriage (1) for a stairlift is configured for sliding along a support guide (2). The carriage (1) comprises a concave shaped frame (101), defining a seat (S) for housing at least a part of said guide (2); at least one upper roller (102), mounted on an upper portion of said frame (101) to be rotatably engageable resting on an upper surface of a head portion (201) of the guide (2); a rolling member (103), mounted on a lower portion of the frame (101) to be rotatably engageable with a lower surface of a base portion (203) of the guide (2); and first and second lower rollers (104a, 104b), mounted on the frame (101) in the proximity of the rolling member (103) in such a way as to be engaged or can be engaged in rolling movement respectively on a first lateral surface (203a) and a second lateral surface (203b) of the base portion (203) of the guide (2).

IPC Classes  ?

• B66B 9/08 - Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons

Abstract

A carriage (1) for a stairlift is configured for sliding along a support guide (2). The carriage (1) comprises a concave shaped frame (101), defining a seat (S) for housing at least a part of said guide (2); at least one upper roller (102), mounted on an upper portion of said frame (101) to be rotatably engageable resting on an upper surface of a head portion (201) of the guide (2); a rolling member (103), mounted on a lower portion of the frame (101) to be rotatably engageable with a lower surface of a base portion (203) of the guide (2); and first and second lower rollers (104a, 104b), mounted on the frame (101) in the proximity of the rolling member (103) in such a way as to be engaged or can be engaged in rolling movement respectively on a first lateral surface (203a) and a second lateral surface (203b) of the base portion (203) of the guide (2).

IPC Classes  ?

• B66B 9/08 - Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons

Abstract

Described is a braking unit for a stairlift. The braking unit comprises: a safety device which can engage with the guide to block sliding of the braking carriage; and a detection device designed to detect a speed of the braking carriage. The safety device comprises a safety rotor. The detection device comprises: a friction rotor; a variation mechanism acting in conjunction with and coupled to the safety rotor which is configured to connect to the safety rotor and the friction rotor when the speed of the carriage is greater than the predetermined speed. The safety rotor is configured to be driven in rotation about a second axis of rotation, parallel relative to the first axis of rotation when the safety rotor and the friction rotor are connected. There is also tapered element fixed to the safety rotor locking the safety device in a safe condition.

IPC Classes  ?

• B66B 9/08 - Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
• B66B 5/04 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed

Abstract

A braking unit (4) for a stairlift, wherein the stairlift comprises a guide rail (2) and a braking carriage (1) slidable on the guide rail (2), the braking carriage (1) comprising the braking unit (4). The braking unit (4) comprises: a safety device (5) which can be moved to a safe condition to engage with the guide rail (2) blocking a sliding of the braking carriage (1); a detection device (6) designed to detect a speed of the braking carriage (1), when the braking carriage (1) slides on the guide rail (2), and is configured to connect to the safety device (5) to cause the movement of the safety device (5) in the safe condition, if the speed of the braking carriage (1) exceeds a predetermined maximum speed. The safety device (5) comprises a safety rotor (501). The detection device (6) comprises: a friction rotor (601), rotating relative to the safety rotor (501) around a first axis of rotation (R1) by the sliding of the braking carriage (1); a variation mechanism (603) acting in conjunction with and coupled to the frichtion rotor (601) and is configured to connect in a rotationally integral matter the safety rotor (501) with the friction rotor (601) when the speed of the carriage (1) is greater than the predetermined speed. The safety rotor (501) is configured to be rotated around a second axis of rotation (R2), parallel to the first axis of rotation (R1) when the safety rotor (501) and the friction rotor (601) are connected in an integral manner, the safety device (5) also comprising a tapered element (506) fixed to the safety rotor (501) which is configured to be positioned between the friction rotor (601) and the guide rail (2) for locking the safety device (5) in the safe condition and stopping the sliding of the braking carriage (1).

IPC Classes  ?

• B66B 9/08 - Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
• B66B 5/04 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed

Goods & Services

Lifting apparatus for disabled people, vertical elevators (elevating platforms) for disabled people, recliners, platforms on rails or guides driven by electric motors, lifts for people, platform stair lifts, stair lifts.