EP2695842A1 - Aufzugsvorrichtung - Google Patents
Aufzugsvorrichtung Download PDFInfo
- Publication number
- EP2695842A1 EP2695842A1 EP11863223.1A EP11863223A EP2695842A1 EP 2695842 A1 EP2695842 A1 EP 2695842A1 EP 11863223 A EP11863223 A EP 11863223A EP 2695842 A1 EP2695842 A1 EP 2695842A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wedges
- guide rail
- active
- pair
- pivot axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003028 elevating effect Effects 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—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
- B66B5/22—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—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
Definitions
- the present invention relates to an elevator system provided with an emergency-stop mechanism for emergency stopping an elevating unit moving up and down in a hoistway.
- an elevator car is provided with an elevator emergency stop device that generates car braking force by sandwiching a guide rail between a pair of wedges.
- Each of the wedges configured in the emergency-stop device is guided, to sandwich the guide rail, by a pair of guide plates facing each other through the guide rail. Due to downward movement of the car when each of the wedges sandwiches the guide rail, each of the guide plates is configured to be expanded in a direction separating them from each other by each of the wedges.
- a duplex-type emergency-stop device mainly applied to a large capacity elevator, has been proposed in which emergency-stop devices are arranged in two stages. Because a load upon the emergency-stop device increases commensurately with the large capacity elevator, it is attempted to distribute the load to the braking members arranged up and down. Thus, an upper braking member and a lower braking member approximately simultaneously contact the guide rail, and, because a car moves in the downward direction relative to the guide rail, the upper braking member results in sliding on a sliding face of the guide rail where the lower braking member has slid (for example, in Patent Document 1).
- Patent Document 1 Japanese Laid-Open Patent Publication No. 2001-354373 (paragraph 0029-paragraph 0032, and Fig. 2 ).
- the present invention is made to resolve such problems described above and aims at providing an elevator system, in which an upper braking member is surely inserted into a predetermined position by adopting a configuration that a lower braking member is slid on a guide rail after the upper braking member has been inserted along the guide rail, and by which safety of and reliability for passengers can be improved.
- An elevator system includes an elevating unit moving up and down along a guide rail in a hoist way of an elevator, a pair of upper wedges provided in a mounting frame in a lower portion of the elevating unit and arranged facing each other, between which the guide rail is sandwiched, for braking the elevating unit by being moved along upper guide member having a slope and by sliding on the guide rail, a pair of lower wedges provided in the mounting frame and under the pair of upper wedges, and arranged facing each other, between which the guide rail is sandwiched, for braking the elevating unit by being moved along a lower guide member having a slope and by sliding on the guide rail, a rectangular operation lever, whose one end is mounted to a lift-up rod which is connected to a governor rope interlocking with the elevating unit and extends in parallel to the guide rail, while whose other end is perpendicularly fixed to an upper pivot axis which extends in a direction that the pair of upper wedges faces each other and is pivotably mounted to an upper portion of
- the upper braking member can be surely inserted into the predetermined position; thereby, an effect can be obtained that safety of and reliability for passengers can be improved.
- Fig. 1 is a configuration view representing an elevator car according to Embodiment 1 of the invention.
- a pair of car guide rail(s) 1 for guiding up-and-down movement of a car 1 and a pair of counterweight guide rails (not shown) for guiding up-and-down movement of a counterweight are arranged along up-and-down direction, respectively.
- a car (elevating unit) 2 is arranged between each of the car guide rail(s) 1, while a counterweight (elevating unit) not illustrated is arranged between each of the counterweight guide rails.
- the car 2 and the counterweight are hanged by an unillustrated hanger wound around a drive sheave of a hoist (driver).
- the hanger for example, a rope or a belt is used.
- the car 2 and the counterweight are moved in the up-and-down direction by driving force of the hoist.
- the car 2 and the counterweight are moved in the up-and-down direction, the car 2 is guided by each of the car guide rails 1, while the counterweight is guided by each of the counterweight guide rails.
- the car 2 includes a car body 3, and a car frame 4 for supporting the car body 3 in a state of surrounding the car body 3.
- an emergency-stop device 5 is provided for preventing falling of the car 2 by imparting braking force to the car 2.
- An operation lever 6 is provided outside the emergency-stop device 5.
- the emergency-stop device 5 is drawn up by an action of the operation lever 6 to hold the car guide rail1. The falling of the car 2 is thus prevented by holding the car guide rail 1 by using the emergency-stop device 5.
- Fig. 2 is a perspective view explaining an operational mechanism of the emergency-stop device 5 according to Embodiment 1 of the invention
- Fig. 3 is a right side view of Fig. 1 representing the emergency-stop device 5.
- the operation lever 6 is a long-length (rectangular) member, and a lift-up rod 24 extending in a direction that the car moves up and down is attached to one end of the operation lever 6, while an upper pivot axis 11 is fixed in a parallel direction to the other end thereof.
- the long-length operation lever 6 is arranged in a state of slightly pivoting upon the upper pivot axis 11 in the downward direction, with a state extending in a direction facing the car guide rail 1 (a direction perpendicular to the figure plane of Fig. 1 ), that is, the other end fixed to the upper pivot axis 11 is positioned above the one end fixed to the lift-up rod 24 of the operation lever 6.
- An upper portion of the lift-up rod 24 is connected to a portion of a governor rope 7.
- the governor rope 7 is an endless rope wound around a governor sheave (unillustrated) of a governor arranged in a top portion of the hoistway, and around a governor tension pulley arranged near a lower pit, and, when the governor detects abnormality in a descending speed of the car 2, the governor holds the governor rope 7 to stop its circulation. That is, when the car 2 moves in the up-and-down direction, the governor rope 7 moves with the car 2, and the governor sheave rotates in response to the movement of the car 2; however, when a rotation speed of the governor sheave, in the downward direction becomes excessive, the governor holds the governor rope 7.
- the operation lever 6 is operated by displacement of the car 2 toward the governor rope 7 due to the governor rope 7 being held by the governor.
- the emergency-stop device 5 includes an upper emergency-stop mechanical section (a first emergency-stop mechanical section) 8, a lower emergency-stop mechanical section (a second emergency-stop mechanical section) 9 arranged in a lower position of the upper emergency-stop mechanical section 8, and an emergency-stop mounting frame 10 fixed to the car frame 4 extending in parallel to the car guide rail 1 to support the upper emergency-stop mechanical section 8 and the lower emergency-stop mechanical section 9.
- the emergency-stop mounting frame 10 is fixed to the lower position of the car.
- the emergency-stop device 5 is a duplex-type emergency-stop device.
- the upper emergency-stop mechanical section 8 includes the upper pivot axis (first pivot axis) 11, a pair of upper wedges 12, and a pair of upper guides (upper guide members) 13.
- the upper pivot axis 11 is pivotably attached in parallel to the emergency-stop mounting frame 10 (in a direction that the pair of upper wedges 12 faces each other).
- the pair of upper wedges 12 is connected to the upper pivot axis 11 through long-length active levers (first active levers) 14, and thereby displaced, due to pivot of the upper pivot axis 11, in an up-and-down direction with respect to the emergency-stop mounting frame 10.
- the pair of upper guides 13, which is fixed to the emergency-stop mounting frame 10, guides the upper wedges 12 displaced by the pivot of the upper pivot axis 11, in a direction contacting with and departing from the car guide rail 1.
- the active levers 14 fixed to the upper pivot axis 11 are the same shaped pair and sandwich the car guide rail 1 therebetween, and a one end of each of the active levers 14 is mounted to each of the upper wedges 12, while the other end is fixed to the upper pivot axis 11.
- the long-length (rectangular) active levers 14 are arranged in a state of slightly pivoting upon the upper pivot axis 11 in the downward direction, with a state extending in a direction with respect to the car guide rail 1 (a direction perpendicular to the figure plane of Fig. 1 ), that is, the other ends fixed to the upper pivot axis 11 position in an upward direction than the one ends of the active levers 14 mounted to the upper wedges 12.
- the operation lever 6 and the pair of active levers 14 fixed to the upper pivot axis 11 are configured to pivot upon the upper pivot axis 11 in the same direction and at the same angle as each other.
- the operation lever 6 and the pair of active levers 14 are arranged in parallel to each other, and keep the parallel state even when they pivot.
- Each of the upper guides 13 faces each other through the car guide rail 1. Distance between each of the upper guides 13 and the car guide rail 1 continuously decreases toward an upper portion of the upper guide 13 from a lower portion thereof.
- the upper guide 13 is mounted to an inside of the emergency-stop mounting frame 10 through a spring, which slides the upper wedges 12 to guide them on its slope, so as to slide the wedges on the guide rail.
- a stopper plate 26 for stopping movement of the upper wedges 12 is provided to the emergency-stop mounting frame 10 at an upper portion of the upper guide 13. The stopper plate 26 is provided at a position where braking force is generated by pressure of the upper guide 13 and the car guide rail 1.
- Each of the upper wedges 12 is arranged between each of the upper guides 13 and the car guide rail 1.
- Each of the upper wedges 12 is guided along the upper guides 13 in a direction to contact the car guide rail 1 due to relative displacement in the upward direction with respect to the emergency-stop mounting frame 10, while guided along the upper guides 13 in a direction to depart from the car guide rail 1 due to displacement in the downward direction with respect to the emergency-stop mounting frame 10.
- Each of the upper wedges 12 is arranged to face each other sandwiching the car guide rail 1 therebetween, and slides on the car guide rail 1 to brake the car 2.
- Each of the upper wedges 12 is configured to be inserted between each of the upper guides 13 and the car guide rail 1 by being displaced in the upward direction guided along the upper guides 13.
- the car guide rail 1 is held between each of the upper wedges 12 due to each of the upper wedges 12 being inserted between each of the upper guides 13 and the car guide rail 1.
- the upper emergency-stop mechanical section 8 imparts braking force to the car 2 by holding the car guide rail 1 between each of the upper wedges 12. That is, the upper emergency-stop mechanical section 8 imparts braking force to the car 2 by contacting each of the upper wedges 12 with the car guide rail 1.
- the lower emergency-stop mechanical section 9 includes a lower pivot axis (second pivot axis) 15, a pair of lower wedges 16, and a pair of lower guides (lower guide members) 17.
- the lower pivot axis 15 is pivotably mounted in parallel to the emergency-stop mounting frame 10 (in a direction that the pair of lower wedges 16 faces each other).
- the pair of lower wedges 16 is connected to the lower pivot axis 15 through long-length active levers (second active levers) 18, and thereby displaced in the up-and-down direction with respect to the emergency-stop mounting frame 10 due to pivot of the lower pivot axis 15.
- the pair of lower guides 17 is fixed to the emergency-stop mounting frame 10, which guides the lower wedges 16 displaced by the pivot of the lower pivot axis 15, in a direction contacting with and departing from the car guide rail 1.
- the active levers 18 fixed to the lower pivot axis 15 are formed in a pair sandwiching the car guide rail 1 therebetween, and one end of each of the active levers 18 is mounted to each of the lower wedges 16, while the other end is fixed to the lower pivot axis 15.
- the long-length (rectangular) active levers 18 are arranged in a state of slightly pivoting upon the lower pivot axis 15 in the downward direction, with a state extending to a direction with respect to the car guide rail 1 (a direction perpendicular to the figure plane of Fig. 1 ), that is, the other end fixed to the lower pivot axis 15 positions in the upward direction than the one ends of the active levers 18 mounted to the lower wedges 16.
- the active levers 18 are previously set so that their inclinations from the horizontal direction are larger than those of the operation lever 6 and the active levers 14.
- the pair of active levers 18 fixed to the lower pivot axis 15 is configured to pivot upon the lower pivot axis 15 in the same direction and at the same angle as each other.
- the pair of active levers 18 is arranged in parallel to each other, and keeps the parallel state even when it pivots.
- Each of the lower guides 17 faces each other through the car guide rail 1. Distance between each of the lower guides 17 and the car guide rail 1 continuously decreases toward an upper portion of the lower guide 17 from a lower portion thereof.
- the upper guide 13 is mounted to the inside of the emergency-stop mounting frame 10 through the spring, which slides the upper wedges 12 to guide on the slope, and slides on the guide rail.
- a stopper plate 27 for stopping movement of the lower wedges 16 is provided to the emergency-stop mounting frame 10 at an upper portion of the lower guide 17. The stopper plate 27 is provided at a position where braking force is generated by pressure of the lower guide 17 and the car guide rail 1.
- Each of the lower wedges 16 is arranged between each of the lower guides 17 and the car guide rail 1.
- Each of the lower wedges 16 is guided along the lower guides 17 in a direction to contact the car guide rail 1 due to relative displacement in the upward direction with respect to the emergency-stop mounting frame 10, while guided along the lower guides 17 in a direction to depart from the car guide rail 1 due to relative displacement in the downward direction with respect to the emergency-stop mounting frame 10.
- Each of the lower wedges 16 is arranged to face each other sandwiching the car guide rail 1 therebetween, and slides on the car guide rail 1 to brake the car 2.
- Each of the lower wedges 16 is configured to be inserted between each of the lower guides 17 and the car guide rail 1 due to the displacement in the upward direction with being guided along the lower guides 17.
- the car guide rail 1 is held between each of the lower wedges 16 due to insertion of the lower wedges 16 along each of the lower guides 17 and the car guide rail 1.
- the lower emergency-stop mechanical section 9 imparts braking force to the car 2 by holding the car guide rail 1 between each of the lower wedges 16. That is, the lower emergency-stop mechanical section 9 imparts braking force to the car 2 by contacting each of the lower wedges 16 with the car guide rail 1.
- the car guide rail 1 arranged between the upper guides 13 and between the lower guides 17 is a common guide rail. Therefore, each of the upper wedges 12 and each of the lower wedges 16 are configured to be able to contact with and depart from the common car guide rail 1.
- a linkage (link member) 19, which is arranged in parallel to the car guide rail 1, for linking the upper pivot axis 11 and the lower pivot axis 15 with each other is provided through active levers 28 and 29.
- the active lever (a third active lever) 28 is formed of a rectangular member a little shorter than those of the operation lever 6, and the active levers 14 and 18, which is perpendicularly fixed to the upper pivot axis 11.
- the active lever (a fourth active lever) 29 is formed of a rectangular member a little shorter than those of the operation lever 6, and the active levers 14 and 18, which is perpendicularly fixed to the lower pivot axis 15.
- the linkage 19 is formed of a rod member, which includes a turnbuckle 19a as an adjusting mechanism for adjusting the length of the linkage 19.
- a turnbuckle 19a as an adjusting mechanism for adjusting the length of the linkage 19.
- the turnbuckle 19a is rotated in one direction, the length of the linkage 19 is lengthened, while, when the turnbuckle 19a is rotated in the other direction, the length of the linkage 19 is shortened.
- the turnbuckle 19a is previously adjusted, by lengthening the length of the linkage 19, the upper pivot axis 11 and the lower pivot axis 15 are relatively pivoted, that is, the active levers 18 and the active lever 29 are set so as to incline lower than the operation lever 6, the active levers 14, and the active lever 28.
- the linkage 19 includes the turnbuckle 19a as the adjusting mechanism, when the upper wedges 12 or the lower wedges 16 do no exhibit normal braking force, adjustment can be easily performed.
- the linkage 19 is fixed to the upper pivot axis 11 through the active lever 28, and fixed to the lower pivot axis 15 through the active lever 29. That is, an upper one end of the linkage 19 is mounted to a one end of the active lever 28 arranged approximately in parallel to the active levers 14, and the upper pivot axis 11 is fixed to the other end of the active lever 28.
- the lower pivot axis 15 is pivoted due to interlocking with the upper pivot axis 11 by the linkage 19.
- the operation lever 6, the active levers 14, and the active lever 28 pivot in the same direction and at the same angle as each other.
- a lower other end of the linkage 19 is mounted to a one end of the active lever 29 arranged approximately in parallel to the active levers 18, and the lower pivot axis 15 is fixed to the other end of the active lever 29. All of the operation lever 6, the active levers 14, the active levers 18, the active lever 28, and the active lever 29 pivot in the same direction and at the same angle as each other.
- an upper emergency-stop mechanical section provided on the other side car guide rail arranged at the opposite side of the car 2 is connected by a linkage 25 as a rod member, and the upper emergency-stop mechanical section on the other side car guide rail is operated by interlocking with the operation lever 6.
- the linkage 25 includes a turnbuckle 25a by which a length thereof can be adjusted, and thereby the two upper emergency-stop mechanical sections each can simultaneously hold the car guide rail by adjusting the length thereof using the turnbuckle 25a.
- one end of an active lever 32 formed of the same shaped member as that of the active lever 28, extending perpendicular to the active levers 14 and the active lever 28, is fixed to the upper pivot axis 11 fixed to the other ends of the active levers 14 and the active lever 28 arranged in parallel to each other.
- the other end of the active lever 32 is pivotably mounted to a one end of the linkage 25.
- the emergency-stop device 5 similarly operates through a plurality of active levers.
- arrangement relationship between the active levers connecting the upper wedges and the upper pivot axis, and the linkage 25 is configured to be upside down, so that all of the wedges configured in the pair of emergency-stop devices 5 each connected by the linkage 25 move upward.
- the active lever 28, the active lever 32, the pair of active levers 14, and the operation lever 6 are sequentially arranged in an axis direction of the upper pivot axis 11, each of which is perpendicularly fixed to the upper pivot axis 11.
- the active lever 29 and the pair of active levers 16 are sequentially arranged in an axis direction of the lower pivot axis 15, each of which is perpendicularly fixed to the upper pivot axis 11.
- the active levers are not necessary to be arranged in this order, but the positional relationship between the active lever 28 and the active lever 32 may be reversed, or the active lever 28 and the active lever 32 may be arranged next to the operation lever 6.
- the active lever 28, the pair of active levers 14, and the operation lever 6 are arranged in parallel to each other, and the active lever 29, and the pair of active levers 16 are arranged in parallel to each other; however, the inclinations thereof from the horizontal direction are different.
- An oblong hole 30 is provided at each one end of the active levers 14, in a longitudinal direction thereof, to be mounted to lower portions of the upper wedges 12, which can operate to release force that the active levers 14 impart to the upper wedges 12, when the active levers 14 pivot with pivot of the upper pivot axis 11.
- a hole 31 having a similar size in the longitudinal direction of the active levers 18 to that of the oblong hole 30, but having a wider size in the up-and-down direction than that of the oblong hole 30 is provided at each one end of the active levers 18 mounted to the lower portions of the lower wedges 16, which can operate to release force that the active levers 18 impart to the lower wedges 16, when the active levers 18 pivot with pivot of the lower pivot axis 15.
- the long-length operation lever 6 pivots upon the upper pivot axis 11 clockwise in the figures, and the upper pivot axis 11 also pivots in the same direction therewith.
- the active levers 14, the active lever 28, and the active lever 32 perpendicularly fixed to the upper pivot axis 11 pivot upon the upper pivot axis 11.
- the active levers 14 and 28 are pivoted to a horizontal position, a position where the upper wedges 12 are mounted to the oblong hole 30 is displaced, and parts of the active levers 14 protrudes toward the left side of the figure plane from the upper wedges 12.
- the inclination of the active levers 18 is increased larger than that of the active levers 14 by length adjusting using the turnbuckle 19a, when the active levers 14 are pivoted to a horizontal position, the lower wedges are lifted up in the upward direction by being guided along the lower guides 17; however, the active levers 18 are still inclined not to reach a level of insertion along the guide rail.
- the active levers 18 are adjusted so that their inclination from the horizontal direction is larger comparing to those of the operation lever 6 and the active levers 14, distance from a movement starting point of the lower wedges 16 fixed to the active levers 18 to a point that contacting the stopper plate 27 is set longer than distance from a movement starting point of the upper wedges 12 fixed to the active levers 14 to a point that contacting the stopper plate 26.
- the relative position of the lower wedges 16 is previously set lower than that of the upper wedges 12.
- Fig. 4 is a configuration view representing an instantaneous state in which the upper wedges 12 contact the car guide rail 1 in Fig. 1 , and the lower wedges 16 just before contact it
- Fig. 5 is configuration views representing at several timing points of the upper and the lower wedges according to Embodiment 1 of the present invention.
- the upper wedges 12 include wedge bodies 20, made of iron, pivotably fixed to the active levers 14, and a plurality of shoes 21, made of ceramic, which are provided on the wedge bodies 20, and contact to and depart from the car guide rail 1.
- the lower wedges 16 include wedge bodies 22, made of iron, pivotably fixed to the active levers 18, and a plurality of shoes 23, made of ceramic, which are provided on the wedge bodies 22, and contact to and depart from the car guide rail 1.
- Each of the wedge bodies 20 has an inclination face 20a along the upper guide 13, and a rail counterface 20b facing the car guide rail 1.
- Each of the shoes 21 is provided on the rail counterface 20b.
- Each of the shoes 21 is configured to be a cylindrical part protruded from the rail counterface 20b.
- the wedge body 22 has an inclination face 22a along the lower guide 17, and a rail counterface 22b facing the car guide rail 1.
- Each of the shoes 23 is provided on the rail counterface 22b.
- Each of the shoes 23 is configured to be a cylindrical part protruded from the rail counterface 22b.
- Fig. 5(a) represents a normal state, in which both upper wedges 12 and lower wedges 16 don't contact the car guide rail 1.
- Fig. 5(b) represents a state, in which, due to operation of the governor and pivot of the operation lever 6, the upper wedges 12 contact the car guide rail 1. On the other hand, the lower wedges 16 don't yet contact the car guide rail 1.
- Fig. 5(c) represents a state, in which, due to the upper wedges 12 pushed up to the stopper plate (upper) 26, a normal braking force occurs, while the lower wedges 16 contact the car guide rail 1.
- the operation lever 6 because the upper wedges 12 contact the stopper plate 26, the operation lever 6, the upper pivot axis 11, or the lower pivot axis 15 does not pivot any more.
- the upper wedges 12 still slide on the car guide rail 1, and the car 2 has not stopped.
- Fig. 5(d) represents a state, in which, due to the lower wedges 16 pushed also up to the stopper plate (lower) 27, a normal braking force occurs.
- the lower wedges 16 contact the stopper plate 27.
- the holes 31 represented in Fig. 2 and Fig. 3 are provided at the other ends of the lower wedges 16, even after the operation lever 6, the upper pivot axis 11, or the lower pivot axis 15 has stopped pivoting, the lower wedges 16 are allowed to move in the upward direction by the vertical width of the holes 31, and thereby obtaining the normal braking force by contacting the stopper plate 27.
- the upper and the lower wedges simultaneously contact the rail, and are simultaneously pushed up to the stopper plate; however, in the present invention, the distance to the stopper plate 27 for the lower wedges 16 is previously set longer than that to the stopper plate 26 for the upper wedges 12, the upper wedges 12 are slid on the car guide rail 1 in a faster timing than the lower wedges 16, and then, after the upper wedges 12 have been inserted along the rail, the lower wedges 16 are put into slide on the car guide rail 1.
- the linkage 19 previously adjusts so that the inclinations of the active levers 18 and the active lever 29 with respect to the horizontal direction are larger than those of the operation lever 6, the active levers 14, and the active lever 28; however, if the relative position of the lower wedges 16 is arranged lower than that of the upper wedges 12, the invention is not necessarily limited to the above arrangement of the levers. That is, for example, the operation lever 6 and the active levers 14 are arranged in parallel to each other, and the active levers 18, 28, 29 may be arranged in non-parallel to the operation lever 6 and the active levers 14.
- the operation lever 6, the active levers 14, and the active lever 28 are arranged in parallel to each other, while the active levers 28 and 29 may be arranged in nonparallel to the operation lever 6, the active levers 14, and the active lever 28.
- the turnbuckle 19a as the adjusting mechanism of the linkage 19 can be eliminated, and the linkage 19 can also be made as a simple rod linkage. This simplifies the linkage structure as well as saves time for the adjustment.
- the shape of the shoes 21 and 23 is cylindrical; however, the shape is not limited thereto, but may be, for example, rectangular or cubic.
- the upper wedges 12 include the ceramic shoes 21; however, the shoes 21 may not be made of ceramic.
- the shoes 21 are made of cast iron similarly to the case of the wedge bodies 20, where the wedge bodies 20 and each of the shoes 21 may be integrally formed as a unitary.
- the lower wedges 16 include the shoes 23 made of ceramic; however, the shoes 23 may not be made of ceramic.
- the shoes 23 are made of cast iron similarly to the case of the wedge bodies 22, where the wedge bodies 22 and each of the shoes 23 may be integrally formed as a unitary.
- the pluralities of shoes 21 and 23 are provided on the wedge bodies 20 and 22, respectively; however, the shoes 21 and 23 on the wedge bodies 20 and 22 may not be provided in plural. In this case, the size of each shoe is adjusted so that the contact area thereof with the car guide rail 1 is kept at a predetermined value.
- the stage number of emergency-stop mechanical sections is set two: the upper emergency-stop mechanical section 8 and the lower emergency-stop mechanical section 9; however, the number of the stages of the emergency-stop mechanical sections may be three or more.
- a one end of another active lever provided in parallel to the active lever 29 is fixed to the lower pivot axis 15, the other end thereof is pivotably mounted to another linkage having a turnbuckle, and the inclination of the active lever is set larger than that of the active levers 15.
- the emergency-stop device 5 is provided to the car 2; however, the emergency-stop device 5 may be provided to the counterweight. In this case, by the emergency-stop device 5 holding the counterweight guide rail, braking force is imparted to the counterweight. It should be noted that, when the emergency-stop device 5 provided to the counterweight is operated to stop, a structure for preventing ascending of the counterweight becomes necessary. Although a direction to which the wedges or the like move is different, the counterweight can be safely stopped by a similar configuration.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/002015 WO2012137248A1 (ja) | 2011-04-05 | 2011-04-05 | エレベーター装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2695842A1 true EP2695842A1 (de) | 2014-02-12 |
EP2695842A4 EP2695842A4 (de) | 2014-08-20 |
EP2695842B1 EP2695842B1 (de) | 2015-08-26 |
Family
ID=46968698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11863223.1A Active EP2695842B1 (de) | 2011-04-05 | 2011-04-05 | Aufzugsvorrichtung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2695842B1 (de) |
JP (1) | JP5535398B2 (de) |
KR (1) | KR101512924B1 (de) |
CN (1) | CN103459291B (de) |
WO (1) | WO2012137248A1 (de) |
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WO2019197703A1 (en) * | 2018-04-09 | 2019-10-17 | Kone Corporation | Elevator with a rail brake arrangement |
WO2021239456A1 (en) * | 2020-05-26 | 2021-12-02 | Tk Elevator Innovation And Operations Gmbh | Devices for activating elevator safety brakes |
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CN104583111B (zh) * | 2012-08-28 | 2016-07-20 | 株式会社日立制作所 | 电梯的紧急制动装置以及电梯 |
JP6031414B2 (ja) * | 2013-06-24 | 2016-11-24 | 株式会社日立製作所 | エレベータの非常止め装置 |
CN106081781B (zh) * | 2016-08-31 | 2018-07-31 | 江苏创力电梯部件有限公司 | 单导轨双防坠落的轿厢式电梯 |
CN106167219B (zh) * | 2016-08-31 | 2018-07-31 | 江苏创力电梯部件有限公司 | 快速响应的轿厢式电梯 |
CN110650913B (zh) * | 2017-04-04 | 2022-04-05 | Fl史密斯公司 | 矿井运输工具安全制动器 |
ES2922492T3 (es) * | 2017-12-07 | 2022-09-15 | Inventio Ag | Dispositivo paracaídas para un cuerpo móvil, instalación de ascensor con un dispositivo paracaídas y procedimiento para el desbloqueo de un dispositivo paracaídas |
KR200491485Y1 (ko) * | 2018-11-05 | 2020-04-17 | 김덕규 | 엘리베이터용 비상정지시스템 |
EP3909898B1 (de) * | 2020-05-15 | 2023-11-08 | KONE Corporation | Vorrichtung zum betätigen einer fangvorrichtung in verbindung mit einer aufzugskabine |
CN111776913B (zh) * | 2020-07-20 | 2021-11-19 | 台州学院 | 一种曲杆式防失效电梯安全钳及电梯 |
CN112265887B (zh) * | 2020-10-23 | 2021-11-19 | 晋江华菱电梯有限公司 | 一种安全钳联动机构 |
CN113772518B (zh) * | 2021-09-26 | 2023-04-25 | 杭州天奥电梯有限公司 | 一种升降机轿架 |
CN114104905B (zh) * | 2021-11-11 | 2023-08-11 | 珠江富士电梯(中国)有限公司 | 一种电梯轿厢的安全装置 |
CN115258875A (zh) * | 2022-07-25 | 2022-11-01 | 苏州德奥电梯有限公司 | 一种电梯安全钳及使用方法 |
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JPH02295873A (ja) * | 1989-05-09 | 1990-12-06 | Mitsubishi Electric Corp | エレベータの非常止め装置 |
JP3532349B2 (ja) * | 1996-06-11 | 2004-05-31 | 三菱電機株式会社 | エレベータの安全装置 |
JP2001354373A (ja) * | 2000-06-14 | 2001-12-25 | Toshiba Elevator Co Ltd | エレベーター非常止め装置 |
JP4646153B2 (ja) * | 2008-06-11 | 2011-03-09 | 東芝エレベータ株式会社 | エレベータの安全装置 |
JP5297873B2 (ja) * | 2009-04-28 | 2013-09-25 | 株式会社日立製作所 | エレベーターの非常止め装置 |
CN201538626U (zh) * | 2009-07-27 | 2010-08-04 | 沈皆乐 | 自救式电梯安全钳 |
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- 2011-04-05 WO PCT/JP2011/002015 patent/WO2012137248A1/ja active Application Filing
- 2011-04-05 JP JP2013508626A patent/JP5535398B2/ja active Active
- 2011-04-05 CN CN201180069699.1A patent/CN103459291B/zh active Active
- 2011-04-05 KR KR1020137029325A patent/KR101512924B1/ko active IP Right Grant
- 2011-04-05 EP EP11863223.1A patent/EP2695842B1/de active Active
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019197703A1 (en) * | 2018-04-09 | 2019-10-17 | Kone Corporation | Elevator with a rail brake arrangement |
WO2021239456A1 (en) * | 2020-05-26 | 2021-12-02 | Tk Elevator Innovation And Operations Gmbh | Devices for activating elevator safety brakes |
Also Published As
Publication number | Publication date |
---|---|
KR101512924B1 (ko) | 2015-04-16 |
JPWO2012137248A1 (ja) | 2014-07-28 |
WO2012137248A1 (ja) | 2012-10-11 |
EP2695842A4 (de) | 2014-08-20 |
CN103459291A (zh) | 2013-12-18 |
CN103459291B (zh) | 2015-04-01 |
EP2695842B1 (de) | 2015-08-26 |
KR20140006976A (ko) | 2014-01-16 |
JP5535398B2 (ja) | 2014-07-02 |
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