JP5619293B2 - Elevator emergency stop device and installation method of elevator emergency stop device - Google Patents

Description

  The present invention relates to an emergency stop device for an elevator that is attached to a car and applies braking force to the car, and a method for mounting the emergency stop device for an elevator when the emergency stop device is attached to a car.

  Conventionally, an elevator emergency stop device has been proposed in which an emergency stop device is attached to a lower beam of a car via an adapter for attachment so that the emergency stop device can be attached to the car even when the mounting method is different. (Patent Documents 1 and 2).

JP 2008-162767 A JP 2009-220898 A

  For example, in a hydraulic direct-coupled plunger type elevator (an elevator in which a car is directly connected to a hydraulic plunger and the car moves up and down by the vertical movement of the plunger), the emergency stop device may not be mounted on the car. Therefore, when a hydraulic direct-coupled plunger type elevator is reformed to a suspension type elevator in which a car is suspended by, for example, a rope or a belt, an emergency stop device needs to be attached to the car.

  However, when the emergency stop device shown in Patent Documents 1 and 2 is attached to a hydraulic direct-coupled plunger type elevator car, bolt holes or the like for attaching an adapter for attachment are not provided in the lower beam of the car. Therefore, processing such as drilling must be carried out by transporting the lower beam of the car to the factory, and much work is required for mounting the emergency stop device on the car. For this reason, the period of renovation work becomes long and the resting period during which the elevator cannot be used is prolonged.

  In addition, since the emergency stop device shown in Patent Documents 1 and 2 is attached to the lower beam of the car via an adapter for attachment, the emergency stop device protrudes greatly downward from the car, and enters the pit of the hoistway. If there is not enough room, the emergency stop device cannot be attached to the car.

  The present invention has been made to solve the above-described problems, and can prevent the car from protruding greatly in the height direction from the car, and can be easily attached to the car. And it aims at obtaining the attachment method of the emergency stop apparatus of an elevator.

  An elevator emergency stop device according to the present invention is an elevator emergency stop device that is attached to a car having a car room and a car frame that surrounds the car room, and applies braking force to the car that is moved along the guide rail. An emergency stop support having a support body disposed in a vertical column groove provided in the vertical direction of the vertical column of the car frame, and an engaging portion protruding from the support body and hung on the upper end of the vertical column The first fixing bolt that stretches between the side surface of the vertical column groove and the support body, and the first bolt that stretches between the guide device mounting base and the engaging portion fixed to the car frame above the emergency stop support body. And a fixing member for fixing the emergency stop support to the vertical column, a brake member displaceable with respect to the emergency stop support, It is provided on the stop support and the brake member is The emergency stop device main body that applies braking force to the car by contacting it, the emergency stop mounting device that is attached to the car frame, and the emergency stop mounting device are operated to displace the braking member and operate the emergency stop device main body An actuating device is provided.

  According to the emergency stop device for an elevator according to the present invention, it can be prevented from projecting greatly in the height direction from the car and can be easily attached to the car.

It is a front view which shows the elevator car by Embodiment 1 of this invention. It is a top view which shows the cage | basket | car of the elevator of FIG. It is a front view which shows the upper part of the car frame of FIG. FIG. 4 is a side view showing the car frame of FIG. 3. It is sectional drawing along the VV line of FIG. It is sectional drawing along the VI-VI line of FIG. It is a disassembled perspective view which shows the upper part of the cage frame of FIG. It is a perspective view when the emergency stop frame and vertical column of FIG. 7 are seen from another angle. It is a side view which shows the upper part of the cage frame by Embodiment 2 of this invention. FIG. 10 is a cross-sectional view taken along line XX in FIG. 9. It is a disassembled perspective view which shows the upper part of the cage frame of FIG. It is a disassembled perspective view which shows the emergency stop apparatus main body of FIG.

Preferred embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a front view showing an elevator car according to Embodiment 1 of the present invention. FIG. 2 is a plan view showing the elevator car shown in FIG. In the figure, a pair of guide rails 1 facing each other in the horizontal direction are installed in the hoistway along the vertical direction. A car 2 is disposed between the pair of guide rails 1. The car 2 is suspended in the hoistway by a plurality of suspension bodies 3. As the suspension body 3, for example, a rope, a belt, or the like is used. The suspension body 3 is wound around a driving sheave (not shown) of a hoisting machine that is a driving device provided in the hoistway. The car 2 is moved in the vertical direction in the hoistway while being guided by the guide rails 1 by the rotation of the driving sheave of the hoisting machine.

  The car 2 includes a car room 4 and a car frame 5 that supports the car room 4 and surrounds the car room 4. The car room 4 includes a car floor 6 and a car room body 7 placed on the car floor 6. The car frame 5 includes a lower frame 8 on which the car room 4 is placed and arranged horizontally, an upper frame 9 that is arranged horizontally above the car room 4, and between the end portions of the lower frame 8 and the upper frame 9. And a pair of vertical columns 10 individually facing each guide rail 1. A corner plate 11 that reinforces the car frame 5 is fixed to a connecting portion between each vertical column 10 and the upper frame 9. Each suspension body 3 is connected to the upper frame 9.

  A plurality of guide devices 12 for guiding the car 2 in the vertical direction along the guide rails 1 are respectively provided on the upper surface of both end portions of the upper frame 9 and the lower surface of both end portions of the lower frame 8. It is detachably fixed via. Each guide device 12 fixed to the upper frame 9 is provided with an oil feeder 14 for supplying lubricating oil to the guide rail 1.

  A pair of emergency stop devices 15 that apply braking force to the cage 2 by individually gripping the pair of guide rails 1 and a pair of emergency stop devices 15 are connected to the upper portion of the car frame 5. A connecting device 16 for interlocking 15 members is attached.

  A speed governor is provided at the upper part of the hoistway, and a tension wheel is provided at the lower part of the hoistway (both not shown). The governor has a governor sheave (not shown). A governor rope 17 is wound between the governor sheave and the tensioning wheel. One end and the other end of the governor rope 17 are connected to each other via a rope connecting device 18.

  The rope connection device 18 is connected to an emergency stop link device 19 connected to the safety device 15 and a car link device 20 connected to the car frame 5. Thereby, when the car 2 moves in the vertical direction, the governor rope 17 is moved together with the car 2, and the governor sheave is rotated according to the movement of the car 2.

  The speed governor is provided with an overspeed switch that operates when the rotational speed of the speed governor sheave reaches a preset overspeed. When the overspeed switch is activated, power supply to the hoisting machine that moves the car 2 is stopped, and the brake device of the hoisting machine is activated. Further, the speed governor grips the speed governor rope 17 when the rotational speed of the speed governor sheave reaches an emergency stop overspeed that is higher than the set overspeed. When the governor rope 17 is gripped by the governor, the movement of the governor rope 17 is stopped, but the movement of the car 2 is continued, so that the car 2 is displaced with respect to the governor rope 17. Is done. By the displacement of the car 2 with respect to the governor rope 17, the emergency stop link device 19 is operated, and each emergency stop device 15 is operated.

  FIG. 3 is a front view showing the upper part of the car frame 5 of FIG. FIG. 4 is a side view showing the car frame 5 of FIG. 5 is a cross-sectional view taken along line VV in FIG. 4, and FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is an exploded perspective view showing the upper part of the car frame 5 of FIG. In the figure, each vertical column 10 includes a back plate portion 10a facing the guide rail 1 and a pair of side plate portions 10b protruding from both sides of the back plate portion 10a toward the guide rail 1 as shown in FIG. A column having a U-shaped cross section. Therefore, the vertical column groove 21 opened to the guide rail 1 side is formed in each vertical column 10 along the vertical direction by the back plate portion 10a and the side plate portions 10b.

  The upper frame 9 has a pair of upper beams 22 that sandwich the vertical column 10 in the width direction of the vertical column 10 (the direction in which the pair of side plate portions 10b face each other). Each upper beam 22 is fixed to the vertical column 10 via the corner plate 11 by bolts and nuts. Each upper beam 22 includes a vertical plate portion 22a, and an upper plate portion 22b and a lower plate portion 22c that protrude horizontally from the upper edge portion and the lower edge portion of the vertical plate portion 22a and face each other in the vertical direction. It is a beam with a U-shaped cross section. The pair of upper beams 22 are arranged with the vertical plate portions 22a facing each other in the width direction of the vertical column 10 with the upper plate portion 22b and the lower plate portion 22c facing outward.

  The guide device mounting base 13 is disposed on each upper beam 22 in a state of straddling between the pair of upper beams 22. Accordingly, the guide device mounting base 13 is disposed above the vertical column 10 and separated from the vertical column 10. The guide device mounting base 13 includes a plurality of bolts 23 that are sequentially passed through a plurality of through holes provided in the guide device mounting base 13 and the upper plate portion 22b, and a plurality of nuts 24 that are screwed to the bolts 23. Are fixed to the upper plate portions 22b. Thereby, the guide apparatus mounting base 13 is detachably fixed to the upper frame 9. The guide device 12 is fixed to the guide device mounting base 13, and the oil filler 14 is fixed to the guide device 12. In addition, the guide apparatus 12 is being fixed to the guide apparatus mounting base 13 with the volt | bolt 25, as shown in FIGS.

  As shown in FIG. 7 in particular, the emergency stop device 15 is provided with an emergency stop frame (emergency stop support) 31 supported on the upper end portion of the vertical column 10, and the emergency stop frame 31. A frame fixing device (support fixing device) 32 for fixing the frame 31, an emergency stop device main body 33 that is attached to the emergency stop frame 31 and can grip the guide rail 1, and an emergency stop mounting device that is attached to the upper frame 9. 34 and an actuating device 35 that is supported by the mounting device 34 for emergency stop and operates the main body 33 of the emergency stop device.

  Here, FIG. 8 is a perspective view when the emergency stop frame 31 and the vertical column 10 of FIG. 7 are viewed from another angle. The emergency stop frame 31 includes a frame main body (support body) 41 disposed in the vertical column groove 21 and a pair of horizontal plates that protrude horizontally from the upper end portion of the frame main body 41 and are hung on the upper end portion of the vertical column 10 ( Engagement portion) 42 and an inclined plate (support guide portion) 43 that protrudes downwardly from a portion between the pair of horizontal plates 42 at the upper end of the frame main body 41. In this example, each horizontal plate 42 and the inclined plate 43 are formed by bending a plate portion extending from the upper end portion of the frame main body 41.

  The frame main body 41 protrudes from the both sides of the back plate portion 41a along the back plate portion 10a of the vertical column 10 toward the open portion of the vertical column groove 21, and the width of the frame main body 41. It has a pair of opposing board part 41b which mutually opposes about a direction, and is formed in cross-sectional U shape by the back board part 41a and each opposing board part 41b. The width dimension of the frame body 41 is smaller than the width dimension in the vertical column groove 21. Each horizontal plate 42 and the inclined plate 43 protrude in the opposite direction to the opposing plate portion 41b from the upper end portion of the back plate portion 41a.

  The frame fixing device 32 has a plurality of horizontal bolts (first fixing bolts) 51 screwed into a plurality of screw holes penetrating each counter plate portion 41b, and a plurality of screw holes penetrating each horizontal plate 42. A plurality of screwed jack bolts (second fixing bolts) 52 and a plurality of screwed screws into a plurality of screw holes penetrating the horizontal plates 42 at positions closer to the back plate portion 41a than the jack bolts 52. The control bolt 53 is provided.

  Each horizontal bolt 51 protrudes outward from the outer surface of the opposing plate portion 41 b in the width direction of the frame body 41. The amount of projection of each horizontal bolt 51 from the opposing plate portion 41b can be adjusted by adjusting the amount of screwing of the horizontal bolt 51 to the opposing plate portion 41b. Each horizontal bolt 51 is pressed against both side surfaces of the vertical column groove 21 so as to stretch between the side surface of the vertical column groove 21 and the opposing plate portion 41b. The emergency stop frame 31 is fixed mainly in the width direction (left-right direction) of the vertical column 10 with respect to the vertical column 10 by each horizontal bolt 51 stretching between the side surface of the vertical column groove 21 and the opposing plate portion 41b. Is done. The position of the frame body 41 in the width direction of the vertical column 10 is adjusted by adjusting the screwing amounts of the left and right horizontal bolts 51 so that the center position of the frame body 41 coincides with the center position of the guide rail 1.

  Each jack bolt 52 protrudes upward from the horizontal plate 42. The amount of protrusion of each jack bolt 52 from the horizontal plate 42 can be adjusted by adjusting the amount of screwing of the jack bolt 52 with respect to the horizontal plate 42. Each jack bolt 52 is pressed against the lower surface of the guide device mounting base 13 to be stretched between the lower surface of the guide device mounting base 13 and the horizontal plate 42 (FIGS. 4 to 6). The emergency stop frame 31 is fixed mainly in the vertical direction with respect to the vertical column 10 by the jack bolts 52 extending between the lower surface of the guide device mounting base 13 and the horizontal plate 42. A locking nut 54 that tightens the jack bolt 52 to the horizontal plate 42 is screwed to the jack bolt 52. The protruding amount of the jack bolt 52 from the horizontal plate 42 is fixed by tightening the locking nut 54.

  Each regulating bolt 53 projects downward from the horizontal plate 42. The amount of protrusion of each regulating bolt 53 from the horizontal plate 42 can be adjusted by adjusting the amount of screwing of the regulating bolt 53 with respect to the horizontal plate 42. Each regulating bolt 53 sandwiches the back plate portion 10 a at the upper end portion of the vertical column 10 between the back surface of the back plate portion 41 a of the frame body 41. The emergency stop frame 31 is mainly formed in the thickness direction of the vertical column 10 (the depth of the vertical column groove 21) with respect to the vertical column 10 by sandwiching the back plate portion 10 a between the restriction bolts 53 and the frame body 41. Direction).

  The threaded portion of each regulating bolt 53 is formed with a tapered portion that narrows toward the tip. No screw is formed on the tapered portion. The frame main body 41 is closely attached to the back plate portion 10a of the vertical column 10 by the action of the taper portion by screwing each regulating bolt 53 into the horizontal plate 42 to increase the downward protrusion amount. Accordingly, the back plate portion 10 a at the upper end portion of the vertical column 10 is firmly sandwiched between the frame main body 41 and each regulating bolt 53.

  As shown in FIGS. 4 and 7 in particular, the emergency stop device main body 33 is disposed in a space between the pair of opposed plate portions 41b (that is, a space inside the frame main body 41). The emergency stop device main body 33 includes a movable base (movable body) 61 that can move up and down relative to the frame main body 41, and a pair of wedges (braking) that are provided on the movable base 61 and displaced in the vertical direction together with the movable base 61. Members) 62, a pair of guide members 63 supported by the frame main body 41 and guiding the wedges 62 in a direction in which the wedges 62 are moved toward and away from the guide rails 1 in the vertical direction, and the guide members 63 and the opposing plates A plurality of pressing springs (elastic bodies) 64 (FIG. 4) are arranged between the portion 41b.

  Each guide member 63 is disposed away from the guide rail 1 on both sides in the width direction of the guide rail 1. Each guide member 63 is formed with an inclined surface that is inclined with respect to the guide rail 1 so as to move away from the guide rail 1 as it goes downward.

  Each wedge 62 is mounted on a common movable table 61 so as to be displaceable in the horizontal direction. Each wedge 62 is disposed on both sides of the guide rail 1 in the width direction of the vertical column 10, and is disposed between the inclined surface of the guide member 63 and the guide rail 1.

  Each wedge 62 is displaced upward with respect to the frame main body 41 together with the movable base 61, thereby being brought into contact with the guide rail 1 while being guided by the inclined surface of the guide member 63, and further displaced upwardly, thereby being guided. The gap between the rail 1 and the guide member 63 is expanded. Each pressing spring 64 is contracted by a gap 62 between the guide rail 1 and the guide member 63 being pushed and expanded by the wedge 62, and generates an elastic restoring force. Each wedge 62 is pressed against the guide rail 1 from both sides by the elastic restoring force of the pressing spring 64 to grip the guide rail 1. When the guide rail 1 is gripped by each wedge 62, a frictional force is generated between each wedge 62 and the guide rail 1, and a braking force is applied to the car 2. That is, in this example, the emergency stop device main body 33 is an emergency stop device main body that maintains the magnitude of the braking force against the car 2 stably.

  The emergency stop attachment device 34 is individually attached to each upper beam 22. The emergency stop mounting device 34 is disposed between the presser fitting (pressing member) 71 disposed above the lower plate part 22 c and the lower plate part 22 c, and between the presser fitting 71 and the lower plate part. An attachment fitting (emergency stop support member) 72 sandwiching 22c and a plurality of fastening bolts 73 for fastening the holding fitting 71 and the attachment fitting 72 are provided. The mounting bracket 72 has a contact plate portion 72a disposed along the lower plate portion 22c, and a plate-shaped bearing portion 72b protruding downward from the contact plate portion 72a.

  The holding metal 71 is provided with a plurality of through holes 74 through which the fastening bolts 73 are passed. A plurality of screw holes 75 into which fastening bolts 73 are screwed are provided in the contact plate portion 72 a of the mounting bracket 72. The pressing metal 71 and the mounting metal 72 are fastened by fastening the fastening bolts 73 passed through the through holes 74 into the screw holes 75 and tightening them. The emergency stop attachment device 34 is attached to the upper frame 9 by sandwiching the lower plate portion 22 c of the upper beam 22 between the presser fitting 71 and the attachment bracket 72.

  The actuating device 35 includes a rotation shaft 81 supported horizontally on each bearing 72b, a rotation lever 82 provided on the rotation shaft 81 and rotated integrally with the rotation shaft 81, and movable. A movable base 61 and a chain (string-like body) 83 that pulls up each wedge 62 by being pulled by a rotation lever 82 while being suspended from each wedge 62 are connected to the base 61. In this example, the string-like body that suspends each wedge 62 is the chain 83, but the string-like body may be, for example, a wire, a rope, a belt, or the like.

  A through hole 84 is provided at the end of the rotating lever 82. One end of the chain 83 is connected to the upper end of the movable base 61, and the other end of the chain 83 is connected to a threaded rod 85 that passes through the through-hole 84. The screw rod 85 is screwed with a plurality of nuts 86 that prevent the screw rod 85 from coming out of the through long hole 84. The chain 83 is hung along the inclined plate 43 from one end where the movable base 61 is connected, and then reaches the other end where the screw rod 85 is connected. The chain 83 is moved while being guided by the inclined plate 43 as the turning lever 82 is turned. The movable table 61 and each wedge 62 are displaced in the vertical direction by the movement of the chain 83.

  The rope connecting device 18 is arranged with a rod (rod-like body) 91 fastened by a plurality of clips (fasteners) 92 to one end and the other end of the governor rope 17 and separated from each other in the length direction of the rod 91. An upper receiving plate 93 and a lower receiving plate 94 provided on the rod 91, an intermediate member 95 disposed between the upper receiving plate 93 and the lower receiving plate 94 and displaceable in the length direction of the rod 91; A connection spring (elastic body) 96 interposed between each of the receiving plate 93 and the lower receiving plate 94 and the intermediate member 95 is provided. When the intermediate member 95 is displaced with respect to the rod 91, it receives an elastic restoring force in a direction to return to the original position from each connection spring 96.

  The emergency stop link device 19 is pivotally connected to the first link 101 via the pin 104 and pivotally connected to the intermediate member 95 via the pin 104. And a second link 102 fixed to the moving shaft 81. The second link 102 is rotated integrally with the rotation shaft 81.

  When the car 2 is displaced downward with respect to the rope connecting device 18, the emergency stop link device 19 is interlocked according to the displacement of the car 2 with respect to the rope connecting device 18, and the rotating shaft 81 is moved in the direction of lifting each wedge 62. Is rotated.

  The car link device 20 includes a rope connecting attachment device 111 attached to the upper frame 9 by sandwiching the lower plate portion 22c, and a link 112 connected between the intermediate member 95 and the rope connecting attachment device 111. doing.

  The rope coupling attachment device 111 is disposed below the lower plate portion 22c with a pressing metal member (pressing member) 113 disposed on the upper side of the lower plate portion 22c. A mounting bracket (coupling mounting member) 114 to be sandwiched, and a plurality of fastening bolts 115 for fastening the presser bracket 113 and the mounting bracket 114 are provided. The mounting bracket 114 has a contact plate portion 114a disposed along the lower plate portion 22c, and a vertical plate portion 114b protruding downward from the contact plate portion 114a.

  The holding metal 113 is provided with a plurality of through holes 116 through which the fastening bolts 115 are passed. A plurality of screw holes 117 into which fastening bolts 115 are screwed are provided in the contact plate portion 114 a of the mounting bracket 114. The holding metal fitting 113 and the attachment metal fitting 114 are fastened by fastening the fastening bolt 115 passed through the through hole 116 into the screw hole 117 and tightening. The rope connecting attachment device 111 is attached to the upper frame 9 by sandwiching the lower plate portion 22 c between the presser fitting 113 and the attachment fitting 114.

  One end of the link 112 is rotatably connected to the intermediate member 95 via the pin 104, and the other end of the link 112 is rotatably connected to the vertical plate portion 114 b of the mounting bracket 114 via the pin 118. Yes.

  As shown in FIG. 3, the connecting device 16 connects the rotation shafts 81 of the safety devices 15. The connecting device 16 includes a pair of rotating arms 121 that are individually fixed to the rotating shafts 81, and a connecting member 122 that connects the rotating arms 121.

  One end of the connecting member 122 is rotatably connected to one rotating arm 121 via a pin, and the other end of the connecting member 122 is rotatably connected to the other rotating arm 121 via a pin. ing. The pin provided at one end of the connecting member 122 and the pin provided at the other end of the connecting member 122 are located on the opposite sides with respect to the plane including the axis of each rotation shaft 81. Accordingly, when the emergency stop link device 19 is operated by the displacement of the car 2 with respect to the rope connecting device 18, the respective rotation shafts 81 are rotated in the opposite directions in conjunction with each other by the connecting device 16. Are operated synchronously.

  The connecting member 122 includes a cylindrical joint member 123 whose inner surface is a threaded portion, and a pair of connecting rods 124 that are individually connected to the rotating arms 121 and screwed to both ends of the joint member 123. ing. The length dimension of the connecting member 122 can be adjusted by adjusting the screwing amount of each connecting rod 124 to the joint member 123.

  When a hydraulic direct-coupled plunger type elevator in which the emergency stop device is not attached to the car 2 is reformed to the above-described suspension type elevator in which the emergency stop device 15 is attached to the car 2, The directly connected hydraulic jack is removed, the hoisting machine is installed in a predetermined position in the hoistway, and the car 2 is suspended by the suspension body 3 wound around the driving sheave of the hoisting machine. Further, a speed governor and a tension vehicle are installed in the hoistway, and the speed governor rope 17 is continuously wound around the speed governor sheave and the tension vehicle, and then the speed governor rope 17 is connected by the rope connecting device 18. One end and the other end of the are connected. Further, after the emergency stop device 15 is attached to the car 2, the emergency stop device 15 and the rope connecting device 18 are connected by the emergency stop link device 19, and the car frame 5 and the rope connecting device 18 are connected to the car link device 20. Connect with

  Next, a method for attaching the safety device 15 to the car 2 will be described. First, an emergency stop unit is prepared in advance by mounting the safety device main body 33 inside the frame main body 41. At this time, the horizontal bolts 51, the jack bolts 52, and the regulating bolts 53 are provided in the emergency stop frame 31 in a loosened state. Also, one end of the chain 83 is connected to the upper end of the movable table 61 (unit manufacturing process).

  Thereafter, with the guide device mounting base 13 removed from the car frame 5, the frame main body 41 is inserted into the vertical column groove 21, and each horizontal plate 42 is hung on the upper end portion of the vertical column 10. Accordingly, the emergency stop unit is held on the upper part of the vertical column 10 in a state where the frame main body 41 and the emergency stop device main body 33 are arranged in the vertical column groove 21 (unit mounting step).

  After that, by tightening each regulating bolt 53 with the back plate portion 10a sandwiched between the frame main body 41 and each regulating bolt 53, the back surface of the frame body 41 is moved by the action of the tapered portion of the regulating bolt 53. Close contact with the back plate portion 10a of the vertical column 10 (regulator bolt tightening step).

  Thereafter, the horizontal bolts 51 are turned (operated) to press the horizontal bolts 51 against the side surfaces of the vertical column grooves 21, and the horizontal bolts 51 are stretched between the side surfaces of the vertical column grooves 21 and the opposing plate portion 41b. Make it. At this time, while adjusting the screwing amount of each horizontal bolt 51, the position of the emergency stop frame 31 is adjusted in the width direction of the vertical column 10, and the center positions of the frame main body 41 and the emergency stop device main body 33 are set to the guide rail 1. Match to the center position (width direction fixing step).

  Thereafter, a plurality of fastening plates 72a and holding metal fittings 71 are fastened in a state in which the holding plate portion 72a of the mounting fitting 72 is applied to the lower surface of the lower plate portion 22c and the holding metal fitting 71 is applied to the upper surface of the lower plate portion 22c. Fasten with bolts 73. A rotation shaft 81 having a rotation lever 82, a second link 102, and a rotation arm 121 fixed at a predetermined angle is attached to the mounting bracket 72 in a rotatable manner in advance. As a result, the emergency stop attachment device 34 is attached to the lower plate portion 22c, and the rotation shaft 81 is fixed to the rotation lever 82, the second link 102, and the rotation arm 121. 34 is rotatably supported (mounting process for mounting the emergency stop).

  Thereafter, the screw rod 85 connected to the other end of the chain 83 is inserted into the through-hole 84 of the rotating lever 82, and a plurality of nuts are attached to the screw rod 85 so that the screw rod 85 does not come out of the rotating lever 82. 86 is screwed. Thereby, the chain 83 is connected to the turning lever 82 (chain connecting step).

  Thereafter, the guide device mounting base 13 is disposed above the emergency stop frame 31 attached to the upper end of the vertical column 10, and the guide device mounting base 13 is fixed to the upper surface of each upper beam 22 with a plurality of bolts 23. The guide device 12 and the oil feeder 14 are attached in advance to the guide device mounting base 13 (mounting base fixing step).

Thereafter, each jack bolt 52 is turned (operated) to press each jack bolt 52 against the lower surface of the guide device mounting base 13, and each jack bolt 52 is stretched between the guide device mounting base 13 and each horizontal plate 42. Make it. At this time, the retaining nuts 54 are fastened to the horizontal plate 42 so that the jack bolts 52 are not loosened (up-down direction fixing step).
In this way, the safety device 15 is attached to the car 2.

  After that, as described above, the speed governor and the tension wheel are installed in the hoistway, and one end and the other end of the speed governor rope continuously wound between the speed governor sheave and the tension wheel are roped. The connection device 18 connects.

  Thereafter, a plurality of fastening plates 114a and holding metal fittings 113 are fastened in a state in which the contact plate 114a of the attachment metal fitting 114 is applied to the lower surface of the lower plate portion 22c and the holding metal fitting 113 is applied to the upper surface of the lower plate portion 22c. Fastening with the bolt 115 for use. As a result, the lower plate portion 22c is sandwiched between the presser fitting 113 and the attachment fitting 114, and the rope connection attachment device 111 is attached to the lower plate portion 22c (rope connection attachment device attachment step).

  Thereafter, the first link 101 is coupled between the intermediate member 95 of the rope connecting device 18 and the second link 102, and between the intermediate member 95 of the rope connecting device 18 and the vertical plate portion 114 b of the mounting bracket 114. The link 112 is connected to.

  Moreover, after attaching a pair of emergency stop device 15 to the cage | basket | car 2, the connection member 122 is connected between the rotation arms 121 of a pair of rotation axis | shaft 81 attached to right and left (connection process between rotation arms). Further, for example, wiring is performed between switches such as an overspeed switch of the governor and a control panel, and equipment related to the emergency stop device 15 is installed by adjusting equipment such as the governor.

  Next, the operation will be described. When the car 2 is moved, the governor rope 17 is moved together with the car 2, and the governor sheave is rotated according to the movement of the car 2. When the descending speed of the car 2 increases for some reason and reaches a preset set overspeed, an overspeed switch provided in the governor is activated. Thereby, the power supply to the hoisting machine that moves the car 2 is stopped, and the brake device of the hoisting machine is operated.

  Even after the power supply to the hoisting machine is stopped, the lowering speed of the car 2 further increases, and when the emergency stop overspeed higher than the set overspeed is reached, the speed governor is operated and the speed governor rope 17 is It is gripped by the governor. Thereby, the movement of the governor rope 17 is stopped, and the car 2 is displaced downward with respect to the rope connecting device 18.

  When the car 2 is displaced downward with respect to the rope connecting device 18, one rotating shaft 81 is rotated through the emergency stop link device 19. At this time, the other rotation shaft 81 is also rotated in conjunction with the one rotation shaft 81 by the connecting device 16. Thereby, the wedge 62 of each emergency stop device 15 is pulled up via the rotation lever 82 and the chain 83, and each guide rail 1 is gripped by the pair of wedges 62. As a result, a braking force is generated in the car 2 and the car 2 is emergency stopped.

  In such an elevator safety device 15, each horizontal bolt 51 stretches between the side surface of the vertical column groove 21 and the frame body 41, and each jack bolt 52 extends between the guide device mounting base 13 and the horizontal plate 42. By stretching, the emergency stop frame 31 is fixed to the vertical column 10, and the emergency stop device body 33 is provided on the emergency stop frame 31. Therefore, the emergency stop frame 31 can be attached to the car frame 5 without processing the car frame 5. The safety device main body 33 can be attached to the car frame 5. Thereby, when attaching the emergency stop device main body 33 to the car frame 5, it is possible to eliminate the trouble of processing the car frame 5 at a factory or the like, and the emergency stop device 15 can be easily attached to the car 2. Therefore, the installation work period of the emergency stop device 15 can be shortened, and the suspension period during which the elevator cannot be used can be shortened. Further, since the frame main body 41 provided with the safety device main body 33 is inserted into the vertical column groove 21, it is possible to prevent the safety device main body 33 from protruding greatly in the height direction from the car 2. Thereby, for example, the emergency stop device 15 can be attached to the car 2 even if there is not enough room in the pit of the hoistway.

  In addition, the emergency stop frame 31 is provided with a regulation bolt 53 that protrudes downward from the horizontal plate 42 and sandwiches the upper end of the vertical column 10 between the rear surface of the frame main body 41. The frame 31 can be more reliably fixed.

  Further, since the emergency stop attachment device 34 is attached to the car frame 5 by sandwiching the upper frame 9, the emergency stop attachment device 34 can be easily attached to the car frame 5 without processing the car frame 5. Can be attached.

  In addition, the actuator 35 that moves the wedge 62 to operate the safety device main body 33 rotates the pivot shaft 81, the pivot lever 82 that pivots integrally with the pivot shaft 81, and the wedge 62 while hanging. Since the chain 83 that pulls up the wedge 62 by being pulled by the moving lever 82 is provided, the emergency stop device main body 33 can be operated with a simple configuration and more reliably.

  In addition, a pair of wedges 62 are disposed on both sides of the guide rail 1, and each wedge 62 to be pulled up is guided by the pair of guide members 63 in a direction in contact with the guide rail 1. The emergency stop main body 33 can be gradually made into an emergency stop main body.

  Further, in such a mounting method of the emergency stop device 15, an emergency stop unit having the safety device main body 33 mounted on the emergency stop frame 31 is inserted into the vertical column groove 21, and the horizontal bolt 51 is operated to operate the vertical column groove 21. The horizontal bolt 51 is stretched between the side surface of the emergency stop frame 31 and the frame main body 41 of the emergency stop frame 31, and the jack bolt 52 is operated to operate the jack bolt 52 between the guide device mounting base 13 and the horizontal plate 42 of the emergency stop frame 31. Since 52 is stretched, it is not necessary to process the car frame 5, and the emergency stop device main body 33 can be easily attached to the car frame 5. Further, it is possible to prevent the emergency stop device main body 33 from protruding greatly from the car 2 in the height direction.

Embodiment 2. FIG.
In the first embodiment, the emergency stop device main body 33 is provided on the emergency stop frame 31 so as to stably maintain the magnitude of the braking force on the car 2. However, the braking force on the car 2 is suddenly generated. An early safety device main body for stopping the basket 2 almost instantaneously may be provided on the emergency stop frame 31.

  9 is a side view showing the upper part of the car frame 5 according to the second embodiment of the present invention. FIG. 10 is a cross-sectional view taken along line XX of FIG. 11 is an exploded perspective view showing the upper part of the car frame 5 in FIG. 9, and FIG. 12 is an exploded perspective view showing the safety device main body 33 in FIG. In the second embodiment, only the configuration of the safety device main body 33 is different from that of the first embodiment, and other configurations are the same as those of the first embodiment.

  The emergency stop device main body 33 is provided on the gate-shaped bracket 131 via a gate-shaped bracket (movable body) 131 that can move up and down with respect to the frame body 41 and a roller shaft (rotating shaft) 132. A roller (braking member) 133 that is displaced in the vertical direction and a clamp 134 that is fixed to the frame main body 41 and guides the roller 133 in a direction that contacts and separates from the guide rail 1 due to the vertical displacement of the roller 133 are provided. doing.

  The gate-shaped bracket 131 has a pair of mounting frames 131a each having a predetermined length and facing each other, and a connecting frame 131b that connects one end of each mounting frame 131a. The roller shaft 132 is supported between the other end portions of the mounting frames 131a. The roller 133 is disposed between the other end portions of the mounting frames 131a and is rotatable about the roller shaft 132.

  The retainer 134 includes a base portion 134a facing the back plate portion 41a with a gap, and a guide portion 134b and a receiving portion that are raised from the base portion 134a to the guide rail 1 side and arranged on both sides in the width direction of the guide rail 1. 134c.

  The guide rail 1 is inserted into a space formed between the guide part 134b and the receiving part 134c. The surface of the guide portion 134b on the receiving portion 134c side is an inclined surface that is inclined with respect to the guide rail 1 in a direction away from the guide rail 1 as it goes downward. A surface of the receiving portion 134 c on the guide portion 134 b side is a vertical surface along the guide rail 1.

  The base part 134a is provided with a through hole 135 (roller shaft relief slot) along the inclined surface of the guide part 134b. The roller 133 is disposed between the inclined surface of the guide part 134 b and the side surface of the guide rail 1. The roller shaft 132 is passed through the through long hole 135. Each mounting frame 131a is arranged on both sides in the thickness direction of the clamp 134 in a state where the roller shaft 132 passed through the through long hole 135 is supported.

  One end of a chain 83 is connected to the connecting frame 131b. The position of the roller 133 is shifted from the central axis of the guide rail 1 toward the guide part 134b when the emergency stop device main body 33 is viewed from the guide rail 1 side. Thereby, the chain 83 is also inclined toward the guide part 134b. The roller 133 is displaced upward with respect to the emergency stop frame 31 by pulling up the gate-shaped bracket 131 by the chain 83.

  The roller 133 is displaced upward with respect to the frame main body 41, contacts the guide rail 1 while being guided by the inclined surface of the guide portion 134b and the through long hole 135, and further displaced upward, thereby guiding the roller 133. The gap between the inclined surface of the part 134b and the guide rail 1 is pushed wide. As a result, the clamp 134 is displaced in the width direction with respect to the guide rail 1, the vertical surface of the receiving portion 134 c comes into contact with the guide rail 1, and the roller 133 is interposed between the inclined surface of the guide portion 134 b and the guide rail 1. Bite. Accordingly, the guide rail 1 is gripped between the vertical surface of the receiving portion 134c and the roller 133. When the guide rail 1 is gripped by each wedge 62, a frictional force is suddenly generated between each wedge 62 and the guide rail 1, and a braking force is applied to the car 2. With such a configuration, the emergency stop device main body 33 is an early emergency stop device main body that suddenly generates a braking force against the car 2.

  Thus, even if an early-stage emergency stop device main body that grips the guide rail 1 between the roller 133 and the clamp 134 is used as the emergency stop device main body 33 provided in the emergency stop frame 31, The same effect as that of the first embodiment can be obtained in that it can be prevented from projecting greatly in the vertical direction and can be easily attached to the car 2.

  In each of the above embodiments, the regulation bolt 53 is provided on the horizontal plate 42. However, the horizontal bolt 51 and each jack bolt 52 can secure the emergency stop frame 31 to the vertical column 10. For example, the restriction bolt 53 may not be provided.

  Moreover, in each said embodiment, although the emergency stop apparatus 15 is attached to the cage | basket | car 2 by the renovation work of an elevator, you may make it attach the emergency stop apparatus 15 to the cage | basket | car 2 to a newly installed elevator.

Claims (7)

An elevator emergency stop device attached to a car having a car room and a car frame surrounding the car room, and applying braking force to the car moved along a guide rail,
An emergency body having a support body disposed in a vertical column groove provided in the vertical direction of the vertical column of the car frame, and an engagement portion protruding from the support body and hung on the upper end of the vertical column Stop support,
A first fixing bolt that stretches between a side surface of the vertical column groove and the support body; a guide device mounting base that is fixed to the car frame above the emergency stop support body; and the engagement portion. A second fixing bolt that stretches between the support bolts, provided on the emergency stop support, and fixing the emergency stop support to the vertical column,
An emergency stop device main body having a braking member displaceable with respect to the emergency stop support, provided on the emergency stop support, and applying a braking force to the car by bringing the brake member into contact with the guide rail;
An emergency stop mounting device attached to the car frame, and an elevator emergency stop device provided with an operating device supported by the emergency stop mounting device and operating the emergency stop device main body by displacing the braking member.   2. The elevator according to claim 1, wherein the support fixing device further includes a regulation bolt that protrudes downward from the engagement portion and sandwiches an upper end portion of the vertical column with a back surface of the support body. Emergency stop device.   The elevator emergency stop device according to claim 1 or 2, wherein the emergency stop mounting device is attached to the car frame by sandwiching the car frame. The actuating device is pulled by the turning lever while hanging the brake member while turning the turning shaft integrally rotated with the turning shaft arranged horizontally and rotatable. A string-like body for lifting the braking member;
The elevator emergency stop device according to any one of claims 1 to 3, wherein a support guide portion for guiding the string-like body is provided at an upper end portion of the support body. The braking member is a pair of wedges disposed on both sides of the guide rail,
The said emergency stop apparatus main body has a pair of guide member which each guides the said wedge to the direction which contacts the said guide rail by pulling up each said wedge, respectively. The elevator emergency stop device described. The braking member is a roller,
The said safety device main body has a holding metal which guides the above-mentioned roller in the direction which contacts the above-mentioned guide rail by pulling up the above-mentioned roller, and grasps the above-mentioned guide rail with the above-mentioned roller. The emergency stop device for an elevator according to any one of claims 4 to 5. An elevator emergency stop device attachment method for attaching the elevator emergency stop device according to any one of claims 1 to 6 to the car,
A unit production process for producing an emergency stop unit by mounting the safety device main body on the safety support body;
After the unit manufacturing process, with the guide device mounting base removed from the car frame, the unit body is inserted into the vertical column groove and the engaging portion is hung on the upper end of the vertical column. Process,
A width direction fixing step of operating the first fixing bolt provided on the support body to stretch the first fixing bolt between a side surface of the vertical column groove and the support body;
The guide device mounting base is disposed above the emergency stop support, a mounting base fixing step for fixing the guide device mounting base to the car frame, and the second fixing bolt provided in the engaging portion. A method of attaching an elevator emergency stop device, comprising: a vertical fixing step of operating and operating the guide device mounting base and the engaging portion to stretch the second fixing bolt.

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