Abstract:
An arrangement for reducing the displacement of an elevator car caused by a change in loading includes at least an elevator car configured to move up and down in an elevator hoistway and one or more counterweights, and also at least one rope element above the elevator car and at least one rope element below the elevator car and at least one pretensioner of the rope elements. The elevator car and counterweight are configured to be supported and moved via the rope elements and the pretensioner and rope pulleys, of which rope pulleys the first part are diverting pulleys, and the second part are traction sheaves. The arrangement additionally includes at least two hoisting machines. In the arrangement is a mechanism configured to lock at least two rope pulleys to be non-rotating at least during loading of the elevator car.
Abstract:
The invention relates to a method for providing a rope end block (1) on an end (E) of a coated rope (R), comprising providing a rope (R) comprising one or more elongated load bearing members (2) embedded in a coating (3); and processing an end section (S) of the rope (R), said processing comprising removing from the end section (S) of the rope (R) material of the coating (3) from around said one or more load bearing members (2); and molding a rope end block (1) around the processed end section (S) of the rope (R). One or more electrically conductive connectors (5) can be embedded in the end block (1). The invention relates to a method for manufacturing a rope terminal arrangement, a rope terminal arrangement of an elevator as well as to an elevator.
Abstract:
Abstract The invention relates to an elevator comprising a first elevator unit (1) vertically movable in a hoistway (H); a second elevator unit (2) vertically movable in a hoistway (H); a suspension roping (R) comprising one or more belt shaped suspension ropes (3a,3b,3c) interconnecting the first elevator unit (1) and the second elevator unit (2); a drive wheel for moving said one or more belt-shaped suspension ropes (3a,3b,3c); a plurality of cambered diverting wheels (4, 6); said one or more belt-shaped suspension ropes (3a,3b,3c) each passing around the drive wheel (5) and comprising consecutively - a first rope section (a) extending between the drive wheel (5) and the first elevator unit (1); and - a second rope section (b) extending between the drive wheel (5) and the second elevator unit (2) wherein both rope sections (a, b) diverge from the drive wheel (5) towards the same lateral side thereof, the first rope section (a) passing over a first cambered diverting wheel (4), in particular resting against a cambered circumferential surface area (A,B,C) thereof, and therefrom down to the first elevator unit (1), and the second rope section (b) passing over a second cambered diverting wheel (6), in particular resting against cambered circumferential surface area (A,B,C) thereof, and therefrom down to the second elevator unit (2). Fig. 1 v 6' 5' 1' 2' Fig. 2 5 M b,3a, 3b, 3c 1H *-R
Abstract:
um elevador. trata-se de um elevador que compreende um poço (h); uma cabine de elevador (1) verticalmente móvel no poço (h); uma pluralidade de cordas (3) conectada à cabine (1); um membro de tração giratório (6) que compreende uma área de superfície de tração circunferencial para cada uma das diversas cordas (3a, 3b, 3c); sendo que cada corda (3a, 3b, 3c) é disposta para passar ao redor do membro de tração giratório (6) que se apoia contra uma área de superfície de tração circunferencial (11a ,11b, 11c) do membro de tração (6); maquinário de acionamento (m) para controlar a rotação do membro de tração giratório (6). o elevador compreende meios para detectar o deslocamento de cada uma das cordas (3a, 3b, 3c) sobre uma primeira posição limite (l1a, l1b, l1c) da corda na primeira direção axial (x1) do membro de tração giratório (6) e sobre uma segunda posição limite (l2a, l2b, l2c) da corda na segunda direção axial (x2) do membro de tração (6); e em que o deslocamento de uma ou mais das ditas cordas (3a, 3b, 3c) na direção axial do membro de tração giratório (6) sobre a primeira ou a segunda posição limite (l1a, l2a; l1b, l2b; l1c, l2c) é disposto para acionar o maquinário de acionamento (m) a parar a rotação do membro de tração giratório (6).
Abstract:
unidade de armazenagem de corda, método para instalação de elevador e método para fabricação de unidade de armazenagem de corda. a invenção se refere a uma unidade de armazenagem de corda (1) compreendendo um carretel de corda (2), formado por uma corda (3, 3’, 3”, 3’”) enrolada em uma forma em espiral; e um corpo de suporte (4) dotado de um espaço interno (5) dentro do qual o carretel de corda (2) é posicionado sustentado pelo corpo de suporte (4). a corda (3, 3’, 3”, 3’”) é uma haste tendo uma forma reta quando no estado de descanso e elasticamente flexionável para longe da forma reta, a corda (3, 3’, 3”, 3’”) estando sob tensão de flexão substancial na forma em espiral, e em que o corpo de suporte (4) compreende um ou mais elementos de suporte (6) delimitando o espaço interno (5) e circundando radialmente o carretel de corda (4), o aro externo do carretel de corda (2) radialmente comprimindo contra um ou mais elementos de suporte (6) como efeito da tensão de flexão. a invenção também se refere a um método para instalar uma corda de elevador implementado a unidade de armazenagem de corda, bem como a um método para fabricar a unidade de armazenagem de corda.
Abstract:
AN ELEVATOR There is disclosed an elevator comprising a hoistway (H); an elevator car (1) vertically movable in the hoistway (H); a plurality of ropes (3) connected to the car (1); a rotatable traction member (6) comprising a circumferential traction surface area for each of the several ropes (3a, 3b, 3c); each rope (3a,3b,3c) being arranged to pass around the rotatable traction member (6) resting against a circumferential traction surface area (1la,1lb,1Ic) of the traction member (6); drive machinery (M) for controlling rotation of the rotatable traction member (6). The elevator comprises means for detecting displacement of each of the ropes (3a,3b,3c) over a first limit position (Lia,Llb,Lic) of the rope in the first axial direction (Xi) of the rotatable traction member (6), and over a second limit position (L2a,L2b,L2c) of the rope in the second axial direction (X2) of the traction member (6); and in that displacement of one or more of said ropes (3a,3b,3c) in axial direction of the rotatable traction member (6) over the first or second limit position (LIa,L2a;Lib,L2b;Lic,L2c) is arranged to trigger the drive machinery (M) to stop the rotation of the rotatable traction member (6). Fig. 1a Fig. 1b 63c 10, 30, 50 301 3a 3b Fig. 1c 3a 3 b 3c 2 H 1a 11b 11c Lv/I Lo X1 -------- - -- X2 -60 Fig. 2 6 63 100 7 100b 14 15, 36, 51 10, 30,0 62 [[61 - 60
Abstract:
A ROPE STORAGE UNIT, A METHOD FOR INSTALLING ELEVATOR AND A METHOD FOR FABRICATING ROPE STORAGE UNIT The invention relates to a rope storage unit (1), comprising a rope reel (2), formed by a rope (3,3',3",3"') wound in a spiral form; and a support body (4) provided with an inner space (5) inside which the rope reel (2) is positioned supported by the support body (4). The rope (3,3',3",3"') is a rod having a straight form when in rest state and elastically bendable away from the straight form, the rope (3,3',3",3.') being under substantial bending tension in said spiral form, and in that the support body (4) comprises one or more support members (6) delimiting said inner space (5) and surrounding radially said rope reel (4), the outer rim of the rope reel (2) radially compressing against said one or more support members (6) as an effect of said bending tension. The invention also relates to a method for installing an elevator rope implementing said rope storage unit, as well as to a method for fabricating said rope storage. 3,1,3 "1 cI Fig. 2
Abstract:
The invention relates to an arrangement for installing a set of elevator ropes (R), the arrangement comprising one or more rope reels (3) storing the set of elevator ropes (R); and a rope wheel arrangement (A) mounted on a fixed base (F) comprising one or more rope wheels (5,6); and a first rope guide (4) detachably mounted in proximity of said one or more rope wheels (5, 6) of the rope wheel arrangement (A); and a second rope guide (7) detachably mounted in proximity of said one or more rope wheels (5, 6) of the rope wheel arrangement (A); and wherein the ropes (R) of the set of elevator ropes are arranged to pass from the one or more rope reels (3) to said one or more rope wheels (5, 6) of the rope wheel arrangement (A) via the first rope guide (4), which is arranged to guide the ropes (R) to converge a rim of said one or more rope wheels (5, 6) at least substantially vertically; and to turn around said one or more rope wheels (5,6); and to pass away from the one or more rope wheels (5,6) via the second rope guide (7), which is arranged to guide the ropes (R) to diverge from a rim of said one or more rope wheels (5, 6) at least substantially vertically. The invention further relates to a method for installing a set of elevator ropes (R) wherein said arrangement is utilized. Figure 2 1/ b Fig. 1 4-.. Fig. 2 3 di 7a:7b4 4a
Abstract:
Abstract The invention relates to a method for condition monitoring of a rope (1) of an elevator comprising an elevator car (2) and a rope wheel arrangement (M), which rope (1) is connected to the elevator car (2) and passes around at least one rope wheel (3) comprised in the rope wheel arrangement (M). The method comprises obtaining travel data of the elevator car (2), the travel data including information describing occurrence(s) of car start(s) and/or bypass(es); and determining based on the travel data a total number (N) of car visits at a predetermined landing (Lo) in the path of the elevator car (2), which total number (N) is the sum of the number of starts of the elevator car (2) away from said predetermined landing (Lo) so as to travel to any other landing (L-1,L+1,L+2.. L-+n) irrespective of the traveling direction, and the number of times the elevator car has bypassed said predetermined landing (Lo) without stopping irrespective of the traveling direction; and comparing the total number (N) or a multifold of the total number (N) with a first predetermined limit value, wherein said multifold equals to the total number (N) multiplied with factor n wherein n equals the number of said at least one rope wheel; and performing one or more predetermined action if said total number (N) or the multifold of the total number (N) meets the first predetermined limit value, said one or more action including one or more of indicating a weakened rope condition, indicating a need for maintenance or replacement of elevator rope(s) (1), calculating an estimated moment of maintenance or replacement of elevator rope(s) (1), sending a specific or general warning signal, sending a fault signal, sending a signal to a service center the signal indicating weakened rope condition or a need for maintenance or a need for replacement of elevator rope(s) (1). The invention relates also to an arrangement implementing the method. Fig. 1 La L+2 L+i 12b 12a 2 Lo L-1