JP2002046955A - Emergency stop device for elevator car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency stop device operated when an elevator car reaches an excessive speed at the time of lowering operation as well as rising operation of the elevator car. SOLUTION: A speed governor rope 3 is wrapped between an upper sheave 4 also serving as a fly wheel and a lower sheave 5 journalized to a tension weight 12. A fly weight 7 having a claw 6 projected outward in the radial direction is rotatably disposed to be point-symmetrical in the upper sheave 4. The device is provided with a tripper 18 for an over-speed switch brought into sliding contact with the claw 6 and an over-speed detecting switch 20 operated by rocking of the tripper. A pair of operating links 22 having a tripper 30 for a rope grip are symmetrically disposed with the upper sheave 4 interposed between them, and a movable jaw 33 facing a fixed jaw 36 is removably connected to the operating link 22. An operating lever 2 connected to an operating link 50 of an emergency stop mechanism 51 of the elevator car 1 is connected to the speed governor rope 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency stop device for an elevator car, and more particularly, to preventing an elevator car from rising or falling at an excessive speed.

[0002]

2. Description of the Related Art In an elevator system, when the speed of the elevator car becomes uncontrollable by power, for example, due to a rope slip or the like during the ascent operation of the elevator car, the elevator car collides with a top of a hoistway or a machine room. In addition, when a space is provided at the lower part of the hoistway where people can enter and exit, an emergency stop device is operated to prevent the counterweight from entering the space.

[0003] A conventional safety device is equipped with a governor on the counterweight (counterweight) side and an emergency stop mechanism that interlocks with the governor to control the counterweight.
This governor operates only when the elevator car is moving up, but cannot operate when the elevator car is moving down. Further, at present, an emergency stop device for stopping the counterweight and directly operating the elevator car is not provided.

[0004]

However, if the primary purpose of the safety device is to stop the elevator car, it is one-handed to provide an emergency stop device on the counterweight side that operates only when the elevator car is running up. is there.

[0005] In order to make an emergency stop of the elevator system not only at the time of raising the elevator car but also at the time of descending operation, it is necessary to install a governor which operates at the time of ascending operation and at the time of descending operation on the counterweight side. Therefore, two governors and other related parts are required, which causes disadvantages in terms of cost and installation space.

When a speed governor is provided not only on the counterweight side but also on the elevator car side to stop the elevator car directly, the reaction of the emergency stop device on the counterweight side causes the elevator car side. It is possible that the emergency stop device will operate. As a result, both emergency stop devices are activated, and the tension of the rope (speed governor rope) is lost, making it difficult to recover the emergency stop device. In the worst case, the elevator car must be disassembled. Inconvenience of disappearing occurs.

Accordingly, the present invention provides an emergency stop device that can operate directly to stop an elevator car not only when the vehicle is rising at an excessive speed but also when the vehicle is descending.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention solves the above-mentioned problem by rotatably supporting an upper sheave, which also serves as a flywheel, in a housing fixed to an upper portion of a hoistway, and a guide fixed to a lower portion of the hoistway. A tension weight movable by being guided by the body is provided, a lower sheave is rotatably supported on the tension weight, and a governor rope is endlessly looped between the upper sheave and the lower sheave to control the governor. An operation lever in an emergency stop mechanism of an elevator car is coupled to a part of a rope, and, in the housing, a tripper for an overspeed switch which is slidably contacted with a flyweight of the flywheel and pivotably supported. An overspeed detection switch for turning off the power supply for driving the elevator car by swinging the overspeed switch tripper; and an overspeed switch tripper. A pair of operating links symmetrically arranged on the left and right sides of the upper sheave so as to be swingable on the right and left arm portions of the upper sheave, a rope grip tripper and a movable jaw engaged with and disengaged from the operating links. And a fixed jaw that faces the movable jaw and is stationary between the governor ropes to form a governor, and that the elevator car has an excessive speed during ascending and descending operations. The present invention provides an elevator car emergency stop device characterized in that a drive power supply is shut off and the elevator car is stopped at the time of the occurrence of the emergency stop.

In the emergency stop mechanism of the elevator car, one end of the operation link is connected to the operation lever, a wedge is connected to the other end of the operation link, and the wedge is slidably in contact with the guide rail blade of the elevator car. The pressure contact surface is formed on one side and a taper surface is formed on the other side, and a taper block having a taper surface parallel to the taper surface is fixed to a fixing portion.

Therefore, when the elevator car goes up or down at an excessive speed not only at the time of ascending operation but also at the time of descending operation, the flywheel operates to operate the tripper for the overspeed switch to cut off the driving power supply. At the same time, the movable jaw is disconnected from the operation link by operating the rope grip tripper, the movable jaw clamps the speed governor rope together with the fixed jaw and stops moving, and the emergency stop device is stopped by stopping the speed governor rope. Operate to stop the elevator car on the guide rail.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a governor rope 3 to which an emergency stop operating lever 2 of an elevator car 1 is coupled is endlessly looped between an upper sheave (governor sheave) 4 and a lower sheave (tension sheave) 5, and Reference numeral 4 denotes a housing 16 fixed to the upper part of the hoistway, and lower sheave 5 denotes a guide body 13 fixed to the lower part of the hoistway.
It is arranged rotatably at c. The governor rope 3 is a part of the governor 49 provided on the hoistway side, and the emergency stop operating lever 2 is a part of the emergency stop mechanism 51 provided on the elevator car 1 side.

The upper sheave 4 also serves as a flywheel. As shown in an enlarged view in FIG. 2, a pair of fly weights 7 each having a claw portion 6 on one surface of the upper sheave 4 are rotated by shafts 8,8. The two flyweights 7, 7 are diametrically opposed to each other and are point-symmetrically arranged, and the two flyweights 7, 7 are connected by a connecting rod 9 so as to be interlockable. A rod around which a return spring 10 is wound is connected to one fly weight 7, and this rod passes through a through hole of a bracket 11 fixed to the upper sheave 4 movably in the axial direction.

The lower sheave 5 is pivotally supported by a tension weight 12, and the tension weight 12 is supported by a guide body 13 fixed to a lower portion of the hoistway so as to be vertically movable via a guide shoe 12a. Tension weight 12
The guide body 13 is provided with a vertical guide plate 14 facing the slope 12b, and a lifting prevention roller 15 is provided between the guide plate 14 and the slope 12b. It is interposed.

In a housing 16 accommodating the upper sheave 4, a tripper 18 for an overspeed switch having a tongue piece 17 capable of contacting the claw portion 6 is pivotally supported by a shaft 19. The swing of the overspeed switch tripper 18 causes the operating piece 2 to move.
0a opens and the power supply for driving elevator car 1 is turned off.
The overspeed detection switch 20 that operates at F is fixed.

Further, a symmetrical arm portion 18a, 1 of the overspeed switch tripper 18 is provided in the housing 16.
A pair of operating links 22, 22 having arms 21, 21 which can abut on the upper sheave 4 respectively, are symmetrically arranged on the left and right sides of the upper sheave 4 so as to be swingable. The arm 21 is a substantially L-shaped member rotatably supported on the housing 16 by a shaft 23. One end of a connection link 24 is rotatably mounted on the arm 21, and the other end of the connection link 24 is connected to the arm 21. Hanging link 2
5 is rotatably connected, and the hanging link 25 is hung down and pivotally supported on the housing 16 by a shaft 26. A steady rest 28 against which a spring 27 abuts is fixed to the housing 16 near the upper end of the hanging link 25.

In the vicinity of the lower part of the hanging link 25, there is provided a rope gripping tripper 30 pivotally supported on the housing 16 by a shaft 29, and the claw portion 6 abuts on one end of the tripper 30. A portion 31 is formed, and the other end is cut obliquely and is always in contact with the hanging link 25. The lower end of the hanging link 25 has a pin 2 projecting to one side (front side) as shown in FIG.
The movable jaw (stopper) 33 having an L-shaped cross-section engaging portion 32 bent to one side (rear side) so as to be able to engage and disengage with the pin 25a is engaged with the vertically long arc-shaped hole 34. A pin 35 is provided to be movable diagonally downward toward the governor rope 3.

Governor rope 3 facing movable jaw 33
Is fixedly slidably engaged with a guide box 37 fixed to the housing 16, and the fixed jaw 36 is coiled around a rod 39 fixed to an intermediate wall 38 of the guide box 37. The cushioning effect is generated by the bullet 40. Movable jaw 33 and fixed jaw 3
The end face facing the governor rope 3 of 6 is formed with a rough surface such as corrugated unevenness having a large frictional resistance with each other.

Therefore, according to the governor 49, when the car 1 rises at an excessively high speed (see the arrow FB in FIG. 1) during the ascent operation of the elevator car 1, the upper sheave 4 and the lower sheave 5 rotate at the rotational speed. Rises, and the fly weights 7, 7 rotate in the radial direction about the shafts 8, 8, whereby the pawl portions 6, 6 are pushed out of the upper sheave 4 by centrifugal force, and the The starting part 31 of the ascending rope grip tripper 30 (right side in the figure) is kicked up.
The rope gripping tripper 30 only rotates clockwise around the shaft 29 in the drawing, and does not affect the operation link 22.

The claw portion 6 further kicks the tongue piece 17 of the overspeed switch tripper 18 to the left in FIG. 2, so that the overspeed switch tripper 18 rotates clockwise about the shaft 19, whereby Since the operating piece 20a moves to open the overspeed detection switch 20 and perform the OFF operation, the driving of the elevator car 1 stops. If a situation occurs in which the tongue piece 17 is not kicked by the claw portion 6 and the overspeed switch tripper 18 does not operate, as will be described later, the operation link 2 is activated.
A safety measure is adopted in which the second arm 21 kicks up the arm portion 18a to operate the overspeed switch tripper 18.

Further, since the claw portion 6 kicks down the starting portion 31 of the rope gripping tripper 30 (the left side in the drawing) on the descending side of the governor rope 3, the rope gripping tripper 30 rotates clockwise around the shaft 29. By rotating, the entire operation link 22 is rotated clockwise about the shaft 26.

The rotation of the operating link 22 causes the arm 21 to rotate counterclockwise about the shaft 23 and abut on the arm 18a, thereby causing the overspeed switch tripper 18 to rotate.
Is fixed, the operation piece 20a maintains the open state. The arm 21 is provided for kicking up the arm 18a of the overspeed switch tripper 18 and opening the operating piece 20a if the arm 18a is not rotating.

The pin 2 at the lower end of the hanging link 25
The engagement portion 32 between the movable jaw 5a and the movable jaw 33 is disengaged, and the movable jaw 33 on the descending side of the speed governor rope 3 becomes an arc-shaped long hole 34 and a pin 3
5, the inside of the housing 16 is lowered toward the governor rope 3, and the governor rope 3 is pressed against the fixed jaw 36 to prevent the movement of the governor rope 3.

Since the movement of the governor rope 3 is prevented and the power supply for driving the elevator car 1 is cut off, the elevator car 1 has inertia even if the governor rope 3 is stopped. The emergency stop lever 2
And the emergency stop operation link 50 descends with respect to the car frame 56 to operate the emergency stop mechanism 51, thereby stopping the elevator car 1 from rising.

At this time, since a force of 2 · FB acts on the lower sheave 5, the tension guide 12 tries to rise. However, the lifting prevention roller 15 bites between the slope 12b and the guide plate 14, and the lower guide 5 cuts it. Block. Further, the reaction force FA and the lifting force FB of the governor rope 3 are FA
> FB, the emergency stop mechanism 51 operates reliably.

During the descending operation of the elevator car 1, the car frame 56 descends at an excessive speed (FB FB shown in FIG. 4).
), The opposite, as shown in FIG.
Working link 22 on the descending side of the governor rope 3 (right side in the figure)
Is activated, the movable jaw 33 presses the governor rope 3 against the fixed jaw 36 to clamp the governor rope 3 so as not to move, and the overspeed switch tripper 18
, Counterclockwise about the center of the
Since 0a is opened and the overspeed detection switch 20 is opened to turn off the driving power supply, the lowering of the elevator car 1 is stopped.

Further, since the movement of the governor rope 3 stops and the governor 49 stops, the safety gear operating lever 2 and the safety gear operating link 50 rise with respect to the car frame 56 to operate the safety gear mechanism 51. Then, the elevator car 1 is stopped from descending.

The emergency stop mechanism 51 shown in FIGS. 1 and 4 has a rigid structure in which the emergency stop operation lever 2 and the safety stop operation link 50 are fixed at about 90 degrees, as described above. When the car frame 56 is stopped, the car frame 56 is supported by the car frame 56 so as to be able to move up and down together with the governor rope 3 so as to be able to move up and down. The emergency stop mechanism 51 connects a pair of left and right wedges for holding the guide rail blades of the car frame 56 to the lower end of the operation link 50, and the car frame 56 has a taper that slides on a tapered surface formed on the wedge. In this configuration, a tapered block having a surface is fixedly provided.

That is, the same emergency stop mechanism using a wedge and a tapered block as that conventionally used on the counterweight side can be adopted.
Therefore, since the wedge and the taper block employed on the counterweight side have a structure for preventing the counterweight from descending, the same structure is applied to the upper portion of the car frame 56 and the car frame is formed by reversing the structure. When used in the lower part of the elevator car, an emergency stop mechanism that operates when the elevator car 1 is raised and lowered can be obtained.

Next, with reference to FIGS. 5 to 8, the emergency stop mechanism 51a of the present invention, which is interlocked with the governor 49, will be described. The governor rope 3 is disposed on one side of the guide rails 53, 53 on which the guide rollers 52, 52 fixed to the upper part of the car frame 56 for storing the elevator car 1 are in sliding contact. The emergency stop operating lever 2 is connected via 54, and the emergency stop operating lever 2 is rotatably supported on a car frame 56 by a shaft 55.

The shaft 55 on one side of the car frame 56
(Right side in FIG. 5) shows a pair of levers 5 having a “substantially letter shape”.
7 and 57 are fixed (see FIG. 6), one end of the lever 57 extends in parallel with the safety gear operating lever 2 and an safety gear operating link 50 is rotatably connected to the end thereof.
The other end of 7 extends downward, and one end of a connecting rod 58 is rotatably connected to the end.

The other end of each of the connecting rods 58, 58 (one of which is not shown in FIG. 5) has a shaft rotatably supported on the other side of the car frame 56 opposite to the governor rope 3. A pair of levers 57a fixed to 55a,
57a (one not shown) is pivotably connected. The lever 57a has a "substantially V-shape" like the lever 57. One end of the lever 57a extends upward and is rotatably connected to the connecting rod 58, and the other end extends in the horizontal direction and has an emergency end. Stop operation link 50
a is rotatably connected. Therefore, lever 5
7, 57a can rotate simultaneously with levers 57, 57 in the same upward or downward direction via connecting rods 58, 58. That is, the safety gear operating lever 2 and the safety gear operating link 50 according to the present invention are not rigidly related.
It is different from the above-mentioned conventional one because it rotates with each other.

The emergency stop operation links 50, 50a hang down on both lower sides of the car frame 56, respectively, and the wedges 60 of the emergency stop mechanisms 51a, 51a fixed to the mounting frames 59, 59 connected to the lower end of the car frame 56. , 60 (see FIG. 7). A guide roller 52 that slides on the guide rails 53 is provided on the mounting frames 59.
a, 52a are provided. The guide roller 52a is the same as the guide roller 52, and includes three rollers disposed on the front and both left and right sides of the guide rail blade 53a having a T-shaped cross section. Although the emergency stop mechanism 51a is disposed on the lower side of the car frame 56, it may be disposed on the upper side of the car frame 56.

As shown in FIGS. 7 and 8, the wedge 60 has a press contact surface 60a parallel to the guide rail cutting edge 53a.
It has tapered surfaces 61 and 62 inclined upward and downward with respect to the guide rail cutting edge 53a. Tapered surface 61,
62 has tapered blocks 65, 6 having tapered surfaces 63, 64 inclined downward and upward in parallel with them.
6 are arranged facing each other. This taper block 6
Slide guides 67, 6 between the wedges 60 and 66
8 are movably interposed. Slide guide 67, 68
Has a plurality of rollers 69 that can roll on the tapered surfaces 61, 63, 62, 64. In addition, slide guide 6
7, 68 and a part 71b, 71b of the brake frame 71
Between them are mounted coil-shaped ammunition 77, 77.

A pair of right and left tapered blocks 65 and 66 are connected to arms 70 and 70, and the arms 70 and 70 have an L-shaped cross section and are fixed to a brake frame 71.
1a, 71a rotatably supported by shafts 72, 72. The arms 70, 70 are provided with bolts 74, 74, which are connected to a support 73 having a T-shaped cross section, and a spring 7 such as a coil spring.
5 and 75 are spaced apart at a predetermined interval.
4 and 74 have double nuts 76 and 76 and
75 elasticity can be adjusted.

Next, the operation of the emergency stop mechanism 51a will be described. As shown in FIGS. 9 and 10, when the elevator car 1 rises, the governor 49 operates to stop the drive of the elevator car 1. Then, the elevator car 1 is acted upon by the ascending inertial force, whereas the governing rope 3 is stopped rapidly. Therefore, the emergency stop operation lever 2 rotates downward around the shaft 55 in the relation FA> FB, and the lever The lever 57a also rotates downward about the shaft 55a via the connecting rod 58 and the connecting rod 58.

Therefore, the emergency stop operation links 50, 5
Oa is pushed toward the emergency stop mechanisms 51a, 51a, whereby the wedges 60, 60 move downward along the tapered blocks 65, 66 as shown in FIG. The wedges 60, 60 are pressed against the guide rail cutting edge 53 a via a plurality of rollers 69 that can roll on the tapered surfaces 62, 64 to exert a braking effect, and the car frame 56 integral with the elevator car 1. Stops.

At this time, the slide guide 67 movably interposed between the wedge 60 and the taper block 66 moves upward in accordance with the wedge 60, and compresses the elastic machine 77 to move the wedge 60 to the guide rail blade 53a and the taper block 66. To prevent too much wedge engagement between
The compressed and stored ammunition 77 is released at the time of restoration to restore the wedge 60 to its original state, and the wedge 60 is smoothly returned.

As shown in FIGS. 11 and 12, when the governor 49 operates to stop the driving of the elevator car 1 during the descending operation of the elevator car 1, the descending inertia force acts on the elevator car 1. On the other hand, since the governing rope 3 stops rapidly, the emergency stop operating lever 2 rotates upward around the shaft 55 in the relationship of FA> FB, and the lever 5 is connected to the lever 57 through the connecting rod 58.
7a also rotates upward about the shaft 55a.

Therefore, the emergency stop operation links 50, 5
Oa is pushed to the side of the emergency stop mechanisms 51a, 51a, whereby the wedges 60, 60 move upward along the tapered blocks 65, 66 as shown in FIG. The wedges 60, 60 are pressed against the guide rail cutting edges 53 a by a plurality of rollers 69 that can roll on the tapered surfaces 61, 63, and the pressing surfaces 60 a, 60 a exert a braking effect. The frame 56 stops.

At this time, the slide guide 67 movably interposed between the wedge 60 and the tapered block 65 moves upward in accordance with the wedge 60, and compresses the elastic machine 77 to move the wedge 60 to the guide rail blade 53a and the tapered block 65. To prevent too much wedge engagement between
The compressed and stored ammunition 77 is released at the time of restoration to restore the wedge 60 to its original state, and the wedge 60 is smoothly returned.

In this way, the wedges 60, 60, which are pressed against the guide rail blade 53a, are connected to the emergency stop operation links 50,5.
0a, and the actuation links 50, 50a are actuated by the actuating lever 2 coupled to the governor rope 3 of the governor 49, thereby providing a braking effect to the car frame 56 containing the elevator car 1 itself. In combination with shutting off the driving power supply by the governor 49, it is possible to prevent an emergency situation in which the car frame 56 moves up or down at an excessive speed.

[0042]

According to the present invention described above, not only at the time of ascent operation but also at the time of descending operation of the elevator car, the governor detects an excessive speed of the car frame and cuts off the driving power supply. The car frame is fixedly fixed to the guide rail by the emergency stop mechanism, so there is no need to arrange a speed governor and an emergency stop mechanism on the counterweight side, and all aspects of cost, space, installation, maintenance, etc. Is advantageous.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an elevator system embodying the present invention.

FIG. 2 is an enlarged front view of a main part (a governor) of FIG. 1;

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an explanatory view of an operation at the time of a descending operation corresponding to FIG.

FIG. 5 is a front view of an emergency stop mechanism arranged on the car frame side.

FIG. 6 is a right side view of FIG.

FIG. 7 is a front view showing a main part of the emergency stop mechanism.

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a front view of the elevator car and its car frame during ascending operation.

FIG. 10 is a right side view of FIG. 9;

FIG. 11 is a front view of the elevator car and its car frame during the descent operation.

FIG. 12 is a right side view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Elevator car 2 ... Emergency stop operating lever 3 ... Governor rope 4 ... Upper sheave 5 ... Lower sheave 6 ... Claw 7 ... Fly weight 9 ... Connecting rod 10 ... Return spring 11 ... Bracket 12 ... Tension weight 12a ... Guide Shoe 12b Slope 13 Guide 14 Guide plate 15 Lift-up prevention roller 16 Housing 17 Tongue 18 Overspeed switch tripper 18a, 18b Arm 20 Overspeed detection switch 20a Operating piece 21 Arm Reference Signs List 22 operating link 24 connecting link 25 hanging link 27 spring 28 guide 30 rope gripper tripper 31 starting part 32 engaging part 33 movable jaw (stopper) 34 arcuate slot 35 pin 36 Fixed jaw (stopper) 37 ... guide box 38 ... intermediate wall 39 ... rod 0: Ammunition 49 ... Governor 50, 50a ... Emergency stop operation link 51, 51a ... Emergency stop mechanism 52, 52a ... Guide roller 53 ... Guide rail 53a ... Guide rail blade end 54 ... Rope hitch 55, 55a ... Shaft 56 ... Cage frames 57, 57a Lever 58 Connecting rod 59 Mounting frame 60 Wedge 60a Pressure contact surface 61, 62, 63, 64 Tapered surface 65, 66 Tapered block 67, 68 Slide guide 69 Roller 70 Arm 71: Brake frame 74: Bolt 75, 77: Ammunition

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F16D 63/00 F16D 63/00 L 65/18 65/18 B 65/30 65/30 B (72) Invention Person Yoshinori Nakanishi 4-1-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Shinjuku NS Building Japan Otis Elevator Co., Ltd. F-term (reference) 3F304 CA13 DA23 DA26 DA29 DA33 DA43 DA45 3F305 BB03 BC20 3J058 AB23 AB25 AB29 AB39 BA62 BA64 BA67 BA70 CC06 CC45 CC76 CD18 CD26 CD27 CD37 DB20 FA37

Claims (10)

[Claims] An upper sheave, which also serves as a flywheel, is rotatably supported in a housing fixed to an upper portion of a hoistway, and a tension weight movable by being guided by a guide fixed to a lower portion of the hoistway is provided. A lower sheave is rotatably supported on the tension weight, and a governor rope is endlessly wound between the upper sheave and the lower sheave, and a part of the governor rope is provided with an operating lever in an emergency stop mechanism of an elevator car. In the housing, a tripper for an overspeed switch slidably in contact with a flyweight of the flywheel and pivotally supported, and a power supply for driving an elevator car by swinging the tripper for the overspeed switch And an overspeed detection switch for turning off the switch, and an arm capable of abutting the left and right arms of the overspeed switch tripper, respectively. A pair of operating links symmetrically arranged so as to be able to swing on the left and right sides of the upper sheave, a tripper for a rope grip and a movable jaw engaged and disengaged from the operating link, and the governor rope facing the movable jaw. A speed governor is formed by disposing a stationary jaw and a stationary jaw between the elevator and a power source for driving when the speed is excessively increased during the ascent and descent of the elevator car; An elevator car emergency stop device for stopping a car. 2. The flywheel is characterized in that a flyweight having a claw portion projecting radially outward and abutting on the overspeed switch tripper and the rope grip tripper is rotatably provided. The safety device for an elevator car according to claim 1. 3. The fly weight is characterized in that a pair of levers pivotally supported so as to be swingable are arranged point-symmetrically in the flywheel, and both levers are connected by a connecting rod so as to be interlocked. Item 2. An elevator car emergency stop device according to item 2. 4. The tension weight has a slope inclined upward and the guide body has a vertical surface facing the slope, and a roller is interposed between the vertical surface and the slope. Claim 1, 2, or 3
Elevator car emergency stop device as described. 5. An emergency stop mechanism for an elevator car, wherein one end of an operating link is connected to the operating lever, a wedge is connected to the other end of the operating link, and the wedge is slidably in contact with a guide rail edge of the elevator car. 5. A taper block having a press contact surface on one side and a taper surface on the other side, and a taper block having a taper surface parallel to the taper surface is fixed to the fixing portion. An emergency stop device for an elevator car according to any one of the preceding claims. 6. The tapered surface of the wedge is composed of an upwardly inclined surface inclined obliquely upward and a downwardly inclined surface inclined downwardly, and the tapered surface of the tapered block is a downwardly inclined surface inclined downward and parallel to the upwardly inclined surface. When,
The emergency stop device for an elevator car according to claim 5, further comprising an upward slope inclined obliquely upward and parallel to the downward slope. 7. The emergency stop device for an elevator car according to claim 5, wherein a slide guide rotatably supporting the roller is interposed between the wedge and the tapered surface between the tapered block. 8. The fixing part of the emergency stop mechanism has a tapered block coupled to one end and an arm capable of forming a reaction force of the tapered block by interposing an elastic machine between the tapered block and the frame at the other end. The emergency stop device for an elevator car according to any one of claims 5 to 7, wherein the emergency stop device is supported by a frame as much as possible. 9. The elevator car according to claim 5, wherein operating links, wedges, tapered blocks, slide guides, and arms are arranged symmetrically on both left and right sides of the guide rail of the elevator car. Emergency stop device. 10. The emergency stop device for an elevator car according to claim 9, wherein the operating levers comprise a pair connected by a connecting rod, and the operating levers perform the same operation in conjunction with each other.