JP2008162767A - Emergency stop device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency stop device for an elevator which can be installed by flexibly responding to different mounting methods. <P>SOLUTION: The emergency stop device 10 is installed to a lower beam 43 of a car 4 moving along guide rails 3 laid to a hoistway 2 of the elevator 1. The emergency stop device 10 has a brake unit 101 and a mounting tool 102. The brake unit 101 has a pair of wedges arranged to interpose the guide rails 3 between them. The mounting tool 102 is formed to be fitted to a mounting part of the lower beam 43 to fix the brake unit 101 to the lower beam 43. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an emergency stop device installed in an elevator.

An elevator is required to be equipped with an emergency stop device having a function defined by the Building Standard Law as a safety device. The emergency stop device automatically decelerates or stops the ride when the speed at which the ride descends exceeds a prescribed value. Patent Document 1 describes that an emergency stop device is attached to each of a riding rod and a counterweight. Moreover, in any of patent document 1 and patent document 2, the upper surface of the emergency stop device is directly fixed to the lower beam of the riding rod from below.
JP 2000-302351 A JP 2001-192184 A

  The safety device is also strictly defined in the Building Standard Law for its performance. In addition, if the dimensions and specifications are different, costs other than the cost of the product are incurred, such as requiring a certification test. That is, in order to reduce the unit price of the emergency stop device, it is desirable to reduce the types of dimensions and specifications as much as possible and to mass-produce them.

  When trying to introduce a new emergency stop device, if the shape of the mounting part provided on the lower beam of the riding rod or the frame of the counterweight does not match this emergency stop device, the new emergency stop device is applied. Can not do it. In such a case, in order to install a new emergency stop device, a large-scale modification such as replacement of parts is required.

  Therefore, even if an attempt is made to reduce the cost of the emergency stop device by reducing and standardizing the types of the emergency stop device, it will be costly to modify the existing elevator, so the new emergency stop device is applied to the existing elevator. There are fewer opportunities to If the new emergency stop device is applied only to a new elevator, the effect of cost reduction with respect to standardization by reducing types cannot be sufficiently obtained.

  Therefore, the present invention provides an emergency stop device for an elevator that can be flexibly mounted even when the mounting method is different.

  The emergency stop device according to the present invention is attached to a lower beam of a riding rod that moves along a guide rail laid in an elevator hoistway. This emergency stop device includes a brake unit and a fitting. The brake unit has a pair of wedges arranged with a guide rail interposed therebetween. The fitting is formed in conformity with the mounting portion of the lower beam, and fixes the brake unit to the lower beam.

  In this case, the brake unit has an upper wall, a lower wall, a side wall, and a back wall. The upper wall is disposed above the wedge in a direction across the guide rail. The lower wall is disposed below the wedge in a direction across the guide rail. The side wall is disposed outside the wedge with respect to the guide rail. The back wall is arranged on the side opposite to the side facing the guide rail. And it has the coupling hole corresponding to the multiple types of coupling tool prepared according to the shape of a lower beam in each of an upper wall, a side wall, and a back wall. The brake unit is fixed to the fitting using a plurality of coupling holes.

  According to the emergency stop device of the present invention, the brake unit having a braking function and the fitting having a mounting function for fixing the brake unit to the lower beam of the riding rod are provided separately. . Even when the dimensions of the lower beam differ depending on the specifications of the riding rod, it is possible to mount the brake unit having the same dimension and shape by simply changing the dimension and shape of the fitting. Therefore, not only a new elevator but also an existing emergency stop device for an elevator can be replaced. Therefore, this emergency stop device can be used, and a reduction in unit price due to mass production can be expected.

  Furthermore, by dividing the function into the braking function and the mounting function, each of the functions is specialized, so that the design becomes easy. Even when the size and mounting method of the lower beam are different, it is only necessary to change the shape of the lower beam side of the fitting, so that it is possible to respond quickly.

  In another form of the safety device, the upper wall, the side wall, and the back wall constituting the outer shell of the brake unit each have a coupling hole with a fitting in advance. Even if the mounting method of the emergency stop device differs according to the lower beam made according to the specifications of the norikura, you can change any of the coupling holes by simply changing the dimension shape of the fitting. It can be used to fix the brake unit to the fitting. Since the number of mounting methods that can be handled without changing the specifications of the brake unit will increase, the unit price can be further reduced by mass production.

  An elevator 1 including an emergency stop device 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 6. As shown in FIG. 1, the elevator 1 includes a guide rail 3 arranged in a vertical direction in a hoistway 2, a riding rod 4 guided by the guide rail 3, a governor 5, and a main rope 6. And a hoisting machine 7, a counterweight 8, a guide device 9, and an emergency stop device 10. The speed governor 5 and the emergency stop device 10 are safety devices for decelerating the ride 4 and stopping it safely when the ride is operated at a set speed or higher.

  The main rope 6 is wound around a hoisting machine 7 and a deflecting sheave 71 arranged at the upper part of the hoistway 2. One end of the main rope 6 is fixed to the upper part of the carriage 4, and the other end is fixed to the upper part of the counterweight 8. The carriage 4 and the counterweight 8 are suspended in the hoistway 2 in a slidable manner. The counterweight 8 moves in the direction opposite to the direction in which the carriage 4 moves. The counterweight 8 is guided by the weight rail 3a.

  The riding rod 4 is disposed between the pair of guide rails 3 and includes a cage room 4a in which a user rides and a cage frame 4b that vertically surrounds the cabin. The eaves frame 4 b includes an upper beam 41, a column portion 42, and a lower beam 43. As shown in FIG. 1, the guide devices 9 are arranged at a total of four locations above the upper beam 41 near the guide rail 3 and below the lower beam near the guide rail 3. The rollers 91 are in rolling contact with both side surfaces and the three surfaces of the blade edge. The emergency stop device 10 is mounted between the lower beam 43 and the guide device 9.

  The governor 5 includes a governor sheave 51, a tensioner sheave 52, a governor rope 53, a governor switch 54, a ratchet 55, a pad 56, a link mechanism 57, and a lift lever 58. The governor sheave 51 is arranged at the upper part of the hoistway 2, and the tensioner sheave 52 is arranged at the lower part of the hoistway 2. The governor rope 53 is wound around the governor sheave 51 and the tensioner sheave 52 and is connected to the link mechanism 57. The lift lever 58 connects the wedge 11 provided in the safety device 10 shown in FIG. The link mechanism 57 and the lift lever 58 are incorporated in the lower beam 43.

  When the riding rod 4 is moved by the hoisting machine 7, the governor rope 53 connected by the link mechanism 57 is rotated, and the governor sheave 51 and the tensioner sheave 52 are rotated. As the moving speed of the carriage 4 increases, the rotational speeds of the governor sheave 51 and the tensioner sheave 52 also increase. A pair of weights biased in the centripetal direction are incorporated into the governor sheave 51 in a point-symmetric manner. As the rotational speed of the governor sheave 51 increases, the weight is eccentric.

  When the carriage 4 moves at a speed higher than a preset speed, the eccentric weight hits the governor switch 54 disposed on the outer periphery of the governor sheave 51. The governor switch 54 is connected to the power supply device of the hoisting machine 7 in series and is woven by hand and cuts off the power supply to the hoisting machine 7 when operated. When the power supply is cut off, the built-in brake operates in the hoisting machine 7. Therefore, the riding rod 4 is decelerated and eventually stops.

  The emergency stop device 10 is a safety device provided to safely stop the riding rod 4 even when the riding rod 4 still moves even when the hoisting machine 7 is stopped, even if the main rope 6 is disconnected. . The ratchet 55 is arranged coaxially with the governor sheave 51. The governor sheave 51 has a claw that interlocks with the weight. When the governor sheave 51 is increased even after the governor switch 54 is actuated, the weight of the governor sheave 51 is further decentered, and the claw is engaged with the ratchet 55.

  When the ratchet 55 rotates together with the governor sheave 51, the pad 56 is pressed against the outer periphery of the governor sheave 51 through a lever connected to the ratchet 55. The governor sheave 51 and the ratchet 55 are slightly rotated to a position where the pad 56 contacts the governor sheave 51 and then stops.

  The governor rope 53 is sandwiched between the governor sheave 51 and the pad 56 and decelerated from the moving speed of the riding rod 4. As a result, the link mechanism 57 operates in a direction to lift the lift lever 58 with respect to the carriage 4. The wedge 11 of the safety device 10 moves upward and moves in a direction to sandwich the blade of the guide rail 3 from the side surface. The wedge 11 grips the guide rail 3, and the riding rod 4 is decelerated and stopped by the frictional force.

  As shown in FIG. 2, the emergency stop device 10 includes a brake unit 101 and a fitting 102. As shown in FIG. 3, the brake unit 101 includes a wedge 11, a wedge receiver 12, an urging member 13, and a frame 14. The wedges 11 are arranged in a pair with the guide rail 3 interposed therebetween. The wedge 11 has an inclined portion on the side opposite to the side facing the guide rail 3. The inclined portion has a shape in which the upper side is biased in a direction sandwiching the guide rail 3.

  As shown in FIG. 3, the wedge receivers 12 are arranged in a pair on the outer side of the wedge 11 that is arranged with the guide rail 3 interposed therebetween. The urging member 13 is disposed at a position for urging the wedge receiver 12 in a direction in which the guide rail 3 is sandwiched. The frame 14 has an upper wall 141, a lower wall 142, a side wall 143, and a back wall 144, and surrounds the wedge 11, the wedge receiver 12, and the biasing member 13.

  The upper wall 141 is arranged in a direction crossing the guide rail 3 above the wedge 11. The lower wall 142 is arranged in a direction crossing the guide rail 3 below the wedge 11. The side walls 143 are respectively arranged at positions sandwiching the guide rail 3 from the outside of the wedge 11. As shown in FIG. 2, the back wall 144 is disposed on the back side opposite to the side facing the guide rail 3 when viewed from the front.

  As shown in FIG. 5, the upper wall 141 and the lower wall 142 have notches 141 a and 142 a into which the blades of the guide rail 3 are fitted. Further, as shown in FIGS. 5 and 6, a plurality of coupling holes 141b, 142b, 143b, 144b and positioning pin holes 141c, 142c, 143c are formed on the upper wall 141, the lower wall 142, the side wall 143, and the back wall 144, respectively. Is provided. The coupling holes 141b, 142b, 143b, and 144b are arranged so as to correspond to any of a plurality of types of fittings prepared according to the size and shape of the lower beam 43 of the riding rod 4.

  In the first embodiment, the lower beam 43 of the carriage 4 is composed of two channel steels as shown in FIGS. 1 and 3. Each of the channel steels is disposed in a pair so as to be back to back with the opening side facing sideways and sandwiching the guide rail 3. A rib extending in the horizontal direction from the upper end of the vertical wall 43a arranged in the vertical direction is defined as an upper portion 43b, and a rib extending in the horizontal direction from the lower end is defined as a bottom portion 43c of the lower beam 43. The vertical wall 43 a is arranged narrower than the space between the side walls 143 of the brake unit 101 with respect to the guide rail 3. Therefore, the brake unit 101 is disposed below the bottom 43c of the lower beam 43. The bottom 43c of the lower beam 43 is made so that an emergency stop device having a bulk larger than that of the brake unit 101 can be attached.

  The coupling tool 102 in this embodiment is mounted between the bottom 43c of the lower beam 43 and the brake unit 101 as shown in FIGS. The fitting 102 includes a top plate 21, a bottom plate 22, and a vertical plate 23. The top plate 21 has bolt holes 211 corresponding to the bolt holes 431 prepared for attaching the emergency stop device 10 to the bottom 43 c of the lower beam 43. The top plate 21 is fitted to the bottom 43c of the lower beam 43 and fastened with bolts. The bottom plate 22 has a bolt hole 221 corresponding to the coupling hole 141 b of the upper wall 141 of the brake unit 101. The bottom plate 22 is disposed in parallel with the top plate 21 and is fitted to the upper wall 141 of the brake unit 101 and fastened with bolts. The vertical plate 23 is disposed on the extension of the vertical wall 43a of the lower beam 43 and is welded to the top plate 21 and the bottom plate 22, respectively.

  Further, the emergency stop device 10 is connected to the guide device 9 arranged below this via a fitting 92. The coupling tool 92 is fixed to the coupling hole 142b provided in the lower wall 142 of the brake unit 101 with a bolt. The fitting 92 is prepared in correspondence with the dimensional shape of the brake unit 101. Therefore, according to the specification of the safety device 10, the attachment method can be freely selected without changing the structure of the main part of the guide device 9.

  As described above, the emergency stop device 10 is separated into the brake unit 101 having a braking function and the fitting 102 having a mounting function for attaching the brake unit 101 to the lower beam 43 of the riding rod 4. Has been. Further, the brake unit 101 includes coupling holes 141b, 142b, 143b, and 144b outside the frame 14. Therefore, even when the specifications of the riding rod 4 are different, a fitting 102 is prepared that matches each of the attachment method of the lower beam 43 and some of the coupling holes 141b, 142b, 143b, 144b of the brake unit 101 each time. Thus, the emergency stop device 10 having the same performance can be attached to the riding board 4 having different specifications without changing the design of the brake unit 101.

  In the case where the method of attaching the emergency stop device 10 to the lower beam 43 is different, another embodiment of the emergency stop device 10 using the fitting 102 having a different size and shape will be described in detail below. In addition, the structure which has the same function attaches | subjects the same code | symbol, and abbreviate | omits the description. In each embodiment, the elevator 1 and the brake unit 101 of the emergency stop device 10 are as described in detail in the first embodiment. Therefore, the brake unit 101 is denoted by the same reference numerals as those in the first embodiment in each drawing, and the description thereof is omitted.

  A safety device 10 according to a second embodiment of the present invention will be described with reference to FIGS. 7 and 8. The brake unit 101 of the emergency stop device 10 is disposed below the bottom 43c of the lower beam 43, as in the first embodiment. The fitting 102 connects the bottom 43c of the lower beam 43 and the upper wall 141 of the brake unit 101. The coupling tool 102 is provided in a pair that is a mirror image with respect to the guide rail 3 in two. When viewing the guide rail 3 from the center side of the hoistway 2, the right fitting 102R is the fitting 102 arranged on the right side, and the left fitting 102L is the fitting 102 arranged on the left side.

  The coupling tool 102 of the second embodiment divided into the right coupling tool 102R and the left coupling tool 102L is a top plate between the vertical plates 23 as compared with the coupling tool 102 of the first embodiment. The configuration is the same as the state in which 21 and the bottom plate 22 are omitted. In other words, the right coupling tool 102R and the left coupling tool 102L are each made of grooved steel, and the opening side of the right coupling tool 102R and the left coupling tool 102L is back-to-back with respect to the guide rail 3 like the lower beam 43. It is in a state of being arranged side by side.

  By configuring the coupling tool 102 in this way, the coupling tool 102 itself can be made at a lower cost. In addition, although it does not show in figure about the connection method of the guide apparatus 9 and the emergency stop apparatus 10, you may attach via the coupling tool 92 similarly to 1st Embodiment, and the coupling tool 92 is this embodiment. It may be received in two parts as in the case of the fitting 102. Further, the guide device 9 may be directly attached to the brake unit 101 of the safety device 10. In this case, using the positioning pins makes it easy to align each other.

  A safety device 10 according to a third embodiment of the present invention will be described with reference to FIGS. 9 to 11. The brake unit 101 of the emergency stop device 10 is disposed below the bottom 43c of the lower beam 43, as in the first embodiment. The fitting 102 connects the bottom 43c of the lower beam 43 and the side wall 143 of the brake unit 101. Similar to the second embodiment, the coupling tool 102 is provided in a pair that is a mirror image of the guide rail 3 in two. When viewing the guide rail 3 from the center side of the hoistway 2, the right fitting 102R is the fitting 102 arranged on the right side, and the left fitting 102L is the fitting 102 arranged on the left side.

  The right coupling tool 102 </ b> R and the left coupling tool 102 </ b> L include a top plate 21 and a side plate 24. The top plate 21 is fastened to the bottom 43c of the lower beam 43 with bolts. The side plate 24 extends downward from the top plate 21 along the outer surface of the side wall 143 of the brake unit 101. The side plate 24 has one coupling hole 143b provided in the side wall 143, one at the center in the width direction on each of the upper side and the lower side as shown in FIG. 9, or closer to the guide rail 3 as shown in FIG. The brake unit 101 is coupled by bolts that are screwed into the upper side and the lower side one by one.

  The right coupling tool 102R and the left coupling tool 102L can be easily made from welding band steels or unequal angle irons. Even when the mounting method of the safety device 10 to the lower beam 43 is different, it can be dealt with by changing only the fitting 102 without changing the size and shape of the brake unit 101 at all.

  A safety device 10 according to a fourth embodiment of the present invention will be described with reference to FIGS. 12 to 14. The brake unit 101 of the emergency stop device 10 is disposed below the bottom 43c of the lower beam 43, as in the first embodiment. The fitting 102 connects the bottom 43c of the lower beam 43 to the upper wall 141 and the back wall 144 of the brake unit 101. The coupling tool 102 includes a bracket 103, a coupling block 104, and a coupling rod 105.

  The bracket 103 is provided in two halves as a mirror image with respect to the guide rail 3, similarly to the coupling tool 102 of the third embodiment. When viewed from the center side of the hoistway 2, the bracket 103 disposed on the right side is referred to as a right bracket 103R, and the bracket 103 disposed on the left side is referred to as a left bracket 103L.

  The right bracket 103R and the left bracket 103L include a top plate 21 and a side plate 24. The top plate 21 is fastened to the bottom 43c of the lower beam with bolts. The side plate 24 extends downward from the top plate 21 along the outer surface of the side wall 143 of the brake unit 101. Each of the right bracket 103R and the left bracket 103L can be easily made from a welded band steel or an unequal angle iron.

  The coupling block 104 includes an upper plate 25 and a back housing 26. The upper plate 25 is coupled to the brake unit 101 by bolts that are screwed into four of the coupling holes 141b provided in the upper wall 141 of the brake unit 101, which are located on both sides of the guide rail 3. The

  The back housing 26 is joined to the lower surface of the upper plate 25 extending in a direction farther from the guide rail 3 than the brake unit 101, and extends along the back wall 144 of the brake unit 101. The back housing 26 is a grooved steel welded to the upper plate 25 with the opening facing away from the brake unit, and has a width along the side plate 24 of the bracket 103 in the direction in which the lower beam 43 extends. ing. The back housing 26 is coupled to the brake unit 101 by bolts that are screwed into the upper and lower four of the six coupling holes 144 b provided in the back wall 144 of the brake unit 101.

  The connecting rod 105 has a groove 105a for mounting the C ring 106 at the end. The connecting rod 105 is passed through a connecting hole 241 provided in the side plate 24 and a connecting hole 261 provided in the back housing 26 in a direction crossing the lower beam 43, so that the bracket 103 and the connecting block 104 are combined. Let

  After the bracket 103 is attached to the lower beam 43 and the coupling block 104 is attached to the brake unit 101, the brake unit 101 side is fixed to the lower beam 43 side by the coupling rod 105. The C-ring 106 is attached to the connecting rod 105 inserted through the connecting holes 241 and 261.

  An emergency stop device 10 according to a fifth embodiment of the present invention will be described with reference to FIGS. 15 to 17. The safety device 10 includes a brake unit 101, a coupling tool 102, and a coupling rod 105. Unlike the previous embodiments, the brake unit 101 of the safety device 10 is disposed between the vertical walls 43a of the lower beam 43. As shown in FIGS. 16 and 17, the lower beam 43 is a hat-shaped steel in which a vertical wall 43a, an upper part 43b, and a bottom part 43c are integrally formed and arranged with the opening side facing upward. The safety device 10 is disposed inside the lower beam 43 of the hat-shaped steel. The fitting 102 connects the vertical wall 43 a of the lower beam 43 to the upper wall 141 and the back wall 144 of the brake unit 101.

  As shown in FIG. 17, the coupling tool 102 has substantially the same shape as the coupling block 104 in the fourth embodiment, and includes an upper plate 25 and a back housing 26. The difference between the coupling tool 102 of the present embodiment and the coupling block 104 of the fourth embodiment is that the back side housing 26 of the coupling block 104 is separated on the right side and the left side toward the guide rail 3. The back side housing | casing 26 of this embodiment is the point currently formed in a row. The back housing 26 can be easily made from a band steel welded or a wide channel steel.

  As shown in FIG. 15, the upper plate 25 is coupled to the brake unit 101 by a bolt that is screwed into a coupling hole 141 b provided in the upper wall 141 of the brake unit 101. The back housing 26 is coupled to the brake unit 101 by a bolt that is screwed into a coupling hole 144 b provided in the back wall 144 of the brake unit 101. The emergency stop device 10 in a state where the brake unit 101 and the fitting 102 are combined is dropped between the lower beams 43 as shown in FIGS. 16 and 17, and the lower beams 43 are crossed over the lower beams 43. The connection rod 105 is passed through the connection hole 432 opened to the connection hole 261 and the connection hole 261 of the back housing 26 and fixed to the lower beam 43.

  In this embodiment, the lower wall 142 of the safety device 10 is covered with the bottom 43c of the lower beam 43. Therefore, the guide device 9 is attached to the lower beam 43.

  A safety device 10 according to a sixth embodiment of the present invention will be described with reference to FIGS. The shape of the lower beam 43 is composed of two channel steels, like the lower beam 43 of the first embodiment. Each of the channel steels is disposed in a pair so as to be back to back with the opening side facing sideways and sandwiching the guide rail 3. As in the fifth embodiment, the brake unit 101 of the emergency stop device 10 is disposed between the vertical walls 43a of the lower beam 43, and about half of the lower side is exposed below the bottom 43c of the lower beam 43. ing.

  The coupling tool 102 includes a back bracket 107 and a coupling rod 105. The fitting 102 connects the vertical wall 43 a of the lower beam 43 to the upper wall 141 and the back wall 144 of the brake unit 101. The back bracket 107 includes an upper plate 25, a back plate 27, and a rear plate 28.

  The upper plate 25 is fixed to the brake unit 101 by a bolt that is screwed into a coupling hole 141 b provided in the upper wall 141 of the brake unit 101. The back plate 27 is provided along the back wall 144 of the brake unit 101, and is fixed to the brake unit 101 by a bolt that is screwed into a coupling hole 144 b formed in the back wall 144.

  The rear plate 28 extends from the back plate 27 in a direction away from the brake unit 101 along each of the two vertical walls 43a of the lower beam 43 as shown in FIGS. The rear plate 28 has two connecting holes 281 into which the connecting rods 105 are inserted and arranged in a direction along the lower beam 43.

  The emergency stop device 10 in a state in which the fitting 102 is attached to the brake unit 101 is inserted between the vertical walls 43a of the lower beam 43, and is connected to the lower beam by a connecting rod 105 that is passed through the vertical wall 43a. 43.

  Since the back bracket 107 has a simple structure in which flat steel plates are welded, it can be easily made according to the dimensional shape of the lower beam 43 and the brake unit 101.

  A safety device 10 according to a seventh embodiment of the present invention will be described with reference to FIGS. The emergency stop device 10 includes a brake unit 101 and a fitting 102. As shown in FIG. 22, the brake unit 101 is disposed between the vertical walls 43 a of the lower beam 43 and the lower half is below the bottom 43 c of the lower beam 43, as in the sixth embodiment. Exposed.

  The fitting 102 connects the bottom 43c of the lower beam 43 to the upper wall 141 and the back wall 144 of the brake unit 101. The fitting 102 includes an upper plate 25, a back plate 27, a rear flat plate 29, and reinforcing ribs 30. The upper plate 25 is fixed to the upper wall 141 of the brake unit 101, and the back plate 27 is fixed to the back wall 144. The rear flat plate 29 extends from the back plate 27 along the bottom 43c of the lower beam 43, and is coupled to the bottom 43c with bolts. The reinforcing rib 30 is disposed along the vertical wall 43a of the lower beam 43, and is welded between the rear plate 29 and the back plate 27 so as to maintain a substantially right angle as shown in FIG.

  The emergency stop device 10 is mounted from below the lower beam 43 after the coupling device 102 is combined with the brake unit 101 as shown in FIG. Even an existing elevator can be replaced with the emergency stop device 10 of the present embodiment by simply removing the existing emergency stop device from the lower beam 43. Since the remodeling work for the lower beam 43 is not necessary and the parts other than the emergency stop device 10 are not dismantled unnecessarily, the work can be completed in a short time when the emergency stop device 10 is replaced.

  An emergency stop device 10 according to an eighth embodiment of the present invention will be described with reference to FIGS. The emergency stop device 10 includes a brake unit 101 and a fitting 102. As shown in FIGS. 24 and 25, the brake unit 101 is disposed between the vertical walls 43a of the lower beam 43, and the lower half of the brake unit 101 is from the bottom 43c of the lower beam 43, as in the sixth embodiment. Is also exposed downward.

  The fitting 102 connects the vertical wall 43 a of the lower beam 43 and the upper wall 141 of the brake unit 101. As shown in FIGS. 25 and 26, the coupling tool 102 is provided in a pair that is a mirror image with respect to the guide rail 3, as in the second embodiment. When viewing the guide rail 3 from the center side of the hoistway 2, the right fitting 102R is the fitting 102 arranged on the right side, and the left fitting 102L is the fitting 102 arranged on the left side.

  The coupling tool 102 of the eighth embodiment divided into the right coupling tool 102R and the left coupling tool 102L includes a shelf board 31, a longitudinal attachment board 32, and a reinforcing rib 33, respectively. The shelf board 31 and the longitudinal attachment board 32 are integrally formed of angle steel. As shown in FIG. 25, the reinforcing rib 33 is welded so as to maintain the shelf plate 31 and the longitudinal accessory plate 32 at a right angle. The shelf 31 is fixed to the upper wall 141 of the brake unit 101 by bolts that are screwed into two of the coupling holes 141b provided in the upper wall 141 of the brake unit 101 that are close to the direction sandwiching the guide rail 3. . The longitudinal attachment plate 32 is fixed to the longitudinal wall 43a of the lower beam 43 with bolts. The bolt hole 311 provided in the shelf plate 31 is a long hole having a long diameter extending in the direction in which the guide rail 3 is sandwiched, and can be adjusted according to the inner method of the vertical walls 43 a of the lower beam 43.

  A safety device 10 according to a ninth embodiment of the present invention will be described with reference to FIGS. The emergency stop device 10 includes a brake unit 101, a coupling tool 102, and a coupling rod 105. As shown in FIG. 28, the brake unit 101 is disposed between the vertical walls 43a of the lower beam 43 as in the eighth embodiment, and the lower half of the brake unit 101 is exposed below the bottom 43c. In contrast to the fact that the vertical attachment plate 32 of the coupling tool 102 in the eighth embodiment is fixed to the vertical wall 43a of the lower beam 43 with bolts, the coupling tool 102 of this embodiment is attached to the vertical attachment plate 32. The connection hole 321 is provided, and the point that the connection rod 105 is fixed to the lower beam 43 is different.

  The coupling rods 105 are arranged side by side in a direction away from the guide rail 3 as shown in FIG. As shown in FIG. 28, the coupling rod 105 near the guide rail 3 is separately attached on the right coupling tool 102R side and the left coupling tool 102L side so as not to interfere with the guide rail 3. The shelf plate 31 and the longitudinal attachment plate 32 extend longer than the brake unit 101 in the direction away from the guide rail 3. Since the emergency stop device 10 is attached to the lower beam 43 by the connecting rod 105, the assembling work is simple.

  An emergency stop device 10 according to a tenth embodiment of the present invention will be described with reference to FIGS. 30 to 32. The emergency stop device 10 includes a brake unit 101 and a fitting 102. As shown in FIG. 31, the brake unit 101 is disposed between the vertical walls 43a of the lower beam 43 as in the ninth embodiment, and the lower half of the brake unit 101 is exposed below the bottom 43c. The fitting 102 connects the bottom 43c of the lower beam 43 and the side wall 143 of the brake unit 101.

  The right coupling tool 102R and the left coupling tool 102L have the side plate 24 and the top plate 21, and can be easily made by welding band steel or angle steel. Since the lengths of the brake unit 101 and the coupling tool 102 are the same in the direction along the lower beam as shown in FIG. 30, the turning point of the coupling tool 102 in the eighth embodiment may be turned over. As shown in FIG. 32, the brake unit 101 is inserted between the vertical walls 43a of the underlay 43, and it is only necessary to attach the fitting 102 from the outside and bolt it. Can be done.

  An emergency stop device 10 according to an eleventh embodiment of the present invention will be described with reference to FIGS. 33 and 34. The fitting 102 of the emergency stop device 10 has the same basic outline as the fitting of the first embodiment. As shown in FIG. 34, the partition rail 34 is provided across the blade edge in the thickness direction of the blade of the guide rail 3, and the adjustment mechanism 35, 36, 37 is provided in the first embodiment. Different from the fitting 102.

  The adjustment mechanisms 35, 36, and 37 are used to finely adjust the relative position with respect to the guide rail 3 when the safety device 10 and the guide device 9 are attached to the lower beam 43. The joint between the coupling tool 102 and the brake unit 101 is fixed, and the joint between the coupling tool 102 and the lower beam 43 is in a relaxed state. By operating the adjusting mechanisms 35, 36 and 37, the brake unit 101 is centered with respect to the guide rail 3. The adjustment mechanisms 35, 36, and 37 are provided not only for the coupling tool 102 of the first embodiment but also for the coupling tool 102 of other embodiments, so that the brake unit 101 is mounted on the guide rail 3. Can be centered.

  A twelfth implementation emergency stop device 10 according to the present invention will be described with reference to FIG. The emergency stop device 10 shown in FIG. 35 has the same shape as the emergency stop device 10 of the first embodiment, and includes a link unit 108 between the fitting 102 and the lower beam 43 of the carriage 4. . The link unit 108 is a unit in which the link mechanism 57 described in the first embodiment is made independent of the riding rod 4.

  By making the link mechanism 57 an independent link unit 108, the same link unit 108 can be applied to elevators having different specifications such as the dimensions of the carriage 4. Therefore, by standardizing parts, production costs can be suppressed.

  As described above, as shown in the first to twelfth embodiments, the brake unit 101 having the same size and shape is applied even when the mounting method of the safety device 10 to the underlay 43 is different. Have been able to. The emergency stop device 10 is divided into a brake unit 101 specialized for a brake function and a fitting 102 specialized for a function for fixing the brake unit 101 to the lower beam 43.

  As a result, the dimensions and shape of the brake unit 101 can be standardized into several types according to the brake capacity. As a result, it is possible to reduce the burden of expenses other than the manufacturing cost for each emergency stop device, such as a safety verification test for evaluating the braking ability. Further, since the functions are divided, a more appropriate combination can be selected according to the specifications of the elevator. In addition, since the fitting 102 can be selected in accordance with the shape of the underlay 43, even when the emergency stop device is replaced with the latest one for the existing elevator, the remodeling cost for the installation work can be reduced.

  In addition, the coupling tool 102 illustrated in each embodiment is an example for achieving the present invention, and is not limited to the shape and size shown in each drawing. Further, some of the coupling holes 141b, 142b, 143b, and 144b provided on the outer surface of the brake unit 101 are omitted in each embodiment. The size and position of the coupling holes 141b, 142b, 143b, and 144b may be appropriately shifted and the number of the coupling holes 141b may be increased within a range where a new verification test is not required due to the performance of the brake unit 101.

  The emergency stop device according to the present invention is not limited to the one assembled to the lower beam of the riding rod, but is attached to the lower frame of the counterweight that is suspended by the main rope and moves in the hoistway relative to the riding rod. Can also be attached.

The side view which shows the outline of an elevator provided with the safety device of 1st Embodiment which concerns on this invention. The side view which expands and shows the emergency stop apparatus shown in FIG. 1 and its periphery. The front view which looked at the safety device shown in FIG. 2 from the guide rail side. The disassembled perspective view of the connection part of the safety device shown in FIG. The perspective view of the emergency stop apparatus shown in FIG. The perspective view which looked at the safety device shown in FIG. 5 from the opposite side. The front view which shows the safety device of 2nd Embodiment which concerns on this invention. The perspective view of the coupling tool of the safety device shown in FIG. A side view showing an emergency stop device of a 3rd embodiment concerning the present invention. FIG. 10 is a front view of the safety device shown in FIG. 9. The disassembled perspective view of the coupler of the emergency stop apparatus shown in FIG. A side view showing an emergency stop device of a 4th embodiment concerning the present invention. The front view of the emergency stop apparatus shown in FIG. The disassembled perspective view of the coupler of the emergency stop apparatus shown in FIG. A side view showing an emergency stop device of a 5th embodiment concerning the present invention. The front view of the emergency stop apparatus shown in FIG. The disassembled perspective view of the coupler of the emergency stop apparatus shown in FIG. A side view showing an emergency stop device of a 6th embodiment concerning the present invention. The front view of the emergency stop apparatus shown in FIG. The disassembled perspective view of the coupling tool of the safety device shown in FIG. A side view showing an emergency stop device of a 7th embodiment concerning the present invention. The front view of the emergency stop apparatus shown in FIG. The disassembled perspective view of the coupler of the emergency stop apparatus shown in FIG. A side view showing an emergency stop device of an 8th embodiment concerning the present invention. The front view of the emergency stop apparatus shown in FIG. The disassembled perspective view of the coupling tool of the safety device shown in FIG. A side view showing an emergency stop device of a 9th embodiment concerning the present invention. The front view of the emergency stop apparatus shown in FIG. FIG. 28 is an exploded perspective view of the connector of the safety device shown in FIG. 27. A side view showing an emergency stop device of a 10th embodiment concerning the present invention. The front view of the safety device shown in FIG. The disassembled perspective view of the coupling tool of the safety device shown in FIG. A front view showing an emergency stop device of an 11th embodiment concerning the present invention. Sectional drawing shown along the F34-F34 line | wire in FIG. The side view of the safety device of the twelfth embodiment according to the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Elevator, 2 ... Hoistway, 3 ... Guide rail, 4 ... Saddle, 9 ... Guide apparatus, 10 ... Emergency stop device, 11 ... Wedge, 35, 36, 37 ... Adjustment mechanism, 43 ... Lower beam, 43a ... Vertical wall, 43c ... bottom, 57 ... link mechanism, 91 ... roller, 101 ... brake unit, 102 ... fitting, 103 ... bracket, 104 ... coupling block, 105 ... coupling rod, 108 ... link unit, 141 ... top wall , 141a ... coupling hole, 142 ... lower wall, 142b ... coupling hole, 143 ... side wall, 143b ... coupling hole, 144 ... back wall, 144b coupling hole.

Claims (15)

An emergency stop device attached to a lower beam of a riding board that moves along a guide rail laid in an elevator hoistway,
A brake unit having a wedge disposed in a pair with the guide rail interposed therebetween;
An emergency stop device comprising: a fitting that is formed in conformity with a mounting portion of the lower beam and fixes the brake unit to the lower beam. The brake unit is
An upper wall disposed above the wedge in a direction crossing the guide rail; a lower wall disposed below the wedge in a direction crossing the guide rail; and the wedge relative to the guide rail A side wall disposed on the outer side, and a back wall disposed on the side opposite to the side facing the guide rail,
Each of the upper wall, the side wall, and the back wall has coupling holes corresponding to a plurality of types of the fittings prepared according to the shape of the lower beam,
The emergency stop device according to claim 1, wherein the emergency stop device is fixed to the fitting using a plurality of the coupling holes.   The emergency stop device according to claim 2, wherein the brake unit is disposed below a bottom portion of the lower beam provided in a direction crossing the guide rail.   The emergency stop device according to claim 3, wherein the fitting connects the bottom portion of the lower beam and the upper wall of the brake unit.   The emergency stop device according to claim 3, wherein the fitting connects the bottom portion of the lower beam and the side wall of the brake unit. The fitting is
A bracket having a side plate connected to the bottom of the lower beam and extending along the side wall of the brake unit;
A coupling block coupled to the upper wall and the back wall of the brake unit;
4. A connecting rod that is passed through the guide rail in a direction that sandwiches the guide rail at a position farther from the back wall than the back rail and connects the side plate of the bracket and the connecting block. The emergency stop device described in 1.   3. The emergency stop device according to claim 2, wherein the brake unit is disposed between vertical walls of the lower beam provided in a pair along the guide rail in a direction along the guide rail. 4.   The emergency stop device according to claim 7, wherein the fitting connects the vertical wall of the lower beam and the upper wall of the brake unit.   The emergency stop device according to claim 7, wherein the fitting connects the vertical wall of the lower beam to the upper wall and the back wall of the brake unit.   The said coupling tool connects the bottom part of the said lower beam arrange | positioned in the direction which cross | intersects the said guide rail, and the said upper wall and the said back wall of the said brake unit, It is characterized by the above-mentioned. Emergency stop device.   The emergency stop device according to claim 7, wherein the fitting connects a bottom portion of the lower beam disposed in a direction crossing the guide rail and the side wall of the brake unit.   The emergency stop device according to any one of claims 4, 5, 8, 10, and 11, wherein the fitting is divided into two mirror images of the guide rail.   3. The emergency stop device according to claim 2, wherein the brake unit includes a coupling hole for connecting a guide device having a roller that is in rolling contact with the guide rail in the lower wall.   2. The emergency stop device according to claim 1, wherein the fitting has an adjustment mechanism that displaces a position of a riding rod with respect to the guide rail along a plane that crosses the guide rail.   The emergency stop device according to claim 3, wherein a link unit including a link mechanism for operating the wedge is disposed between the lower beam and the fitting.

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