WO2007034644A1

WO2007034644A1 - Speed governor of elevator

Info

Publication number: WO2007034644A1
Application number: PCT/JP2006/316336
Authority: WO
Inventors: Takanori Urata; Kazuhiko Takai
Original assignee: Toshiba Elevator Kabushiki Kaisha
Priority date: 2005-09-21
Filing date: 2006-08-21
Publication date: 2007-03-29
Also published as: CN101268005A; MY159520A; JP2007084260A; CN101268005B; JP4868807B2

Abstract

A speed governor (30) of an elevator in which a governor rope (6) is wrapped around governor sheaves. The governor (30) comprises a base (1), the governor sheave (2) installed in the base (1) through a rotating shaft (3) and rotating according to the operation of the governor rope (6) wrapped therearound, a flyweight (8) installed on one side face of the governor sheave (2) and having a rotatable working claw (13), and a ratchet (12) rotatably formed on the rotating shaft (3) and engageable with the working claw (13) of the flyweight (8). An inspection lever (42) is fitted to the base (1) rotatably through a rotating pin (41) on the outside of the working claw (13), and a wire (43) rotating the inspection lever (42) is connected to the inspection lever (42). When the wire (43) is pulled, the inspection lever (42) is rotated to press the working claw (13) so as to engage the working claw (13) with the ratchet (12).

Description

Specification

Elevator governor

Technical field

TECHNICAL FIELD [0001] The present invention relates to an elevator governor, and in particular, it is possible to perform operation confirmation safely and efficiently, and to maintain the design and design freedom of a landing site and a building. Related to the machine. Background art

[0002] Generally, a car is provided in an elevator hoistway. A main rope is connected to the car, and the main rope is moved by a hoisting machine to move the car. It can be moved up and down in the hoistway. The car is also provided with a safety link, and this safety link is connected to the speed governor via a speed governor rope and is also connected to an emergency stop device provided on the car. .

[0003] When the main rope breaks, etc., the car falls in the hoistway, but when the speed of the car becomes abnormally high, the governor grips the governor rope. When the governor rope is gripped in this way, the safety link provided on the car is pulled upward, the emergency stop device provided on the car is operated, and the car is stopped.

[0004] Conventionally, in an elevator in which the governor is installed above the hoistway, the governor is operated on the car, and in an elevator in which the governor is installed below the hoistway or in the pit, The speed governor is operated inside, and the operation of the speed governor and emergency stop device is checked.

[0005] However, when a speed governor is installed above the hoistway, it is necessary for an operator to get on the car and check the speed governor, and the car moves unexpectedly. If it is, it is dangerous. Also, if a speed governor is installed below the hoistway or in the pit, workers must enter the pit and perform inspection work, which is also dangerous if the car moves unexpectedly. .

[0006] In addition, in order to avoid the danger of workers on the car and in the pit, inspection windows are installed on the landings and hoistway walls, and the speed regulator and emergency stop device are inspected from the inspection windows. However, if the inspection window is provided, the design of the platform and the building will deteriorate. In addition, the degree of freedom in designing the platform and building will be reduced.

[0007] In addition, an inspection window can be provided at a position where the design of the platform or building does not deteriorate so much, but in such a case, the inspection window is often installed at a position where it is difficult to work. Efficiency will decrease.

Disclosure of the invention

[0008] The present invention has been made in consideration of the above points, and can confirm the operation safely and efficiently, and can maintain the designability and design flexibility of the landing and the building. An object of the present invention is to provide a speed governor for an elevator.

[0009] The present invention relates to an elevator governor around which a governor rope is wound, and a base, which is provided in the base via a rotating shaft and rotates according to the operation of the wound governor rope. The speed governor sheave, the flyweight provided on one side of the governor sheave so as to be freely rotatable, and the operation pawl attached to the flyweight, and the flyweight provided rotatably on the rotation shaft. The inspection lever is provided on the base so as to be rotatable via a rotation pin. The inspection lever rotates and presses the operating claw so that the operating claw and the ratchet are engaged with each other. This is an elevator governor characterized by this.

[0010] According to the present invention, an inspection lever is rotatably provided on the base via a rotation pin outside the operating claw, and a wire for rotating the inspection lever is connected to the inspection lever. The elevator governor is characterized in that when the wire is pulled, the inspection lever rotates and presses the operating claw, and the operating claw and the ratchet engage with each other.

[0011] In the elevator governor according to the present invention, the operating claw includes a receiving portion that abuts against the inspection lever on a side.

[0012] According to the present invention, the arrangement surface of the inspection lever and the arrangement surface of the operation claw are different from each other, and the inspection lever is formed with a protruding portion that contacts the operation claw protruding sideways! This is an elevator governor characterized by that.

[0013] In the present invention, an inspection lever is provided inside the operating claw so as to be rotatable via a rotation pin on the base, and a wire for rotating the inspection lever is connected to the inspection lever. The inspection lever is provided so that its arrangement surface is different from the arrangement surface of the operating claw, and has a guide part for guiding the operating claw on the side of the operating claw. By pulling the wire, the inspection lever The elevator governor is characterized in that the rotating claw rotates to guide the operating claw by the guide portion, and the operating claw and the ratchet engage with each other.

[0014] The present invention is the elevator governor characterized in that the check lever is connected to the other end of the spring having one end fixed to the base.

[0015] In the present invention, an inspection lever is provided inside the operating claw so as to be rotatable via a rotation pin on the base, and an actuator for rotating the inspection lever is provided inside the inspection lever. The inspection lever is an elevator governor characterized in that the inspection lever is provided so that its arrangement surface is different from the arrangement surface of the operation claw and has a guide portion for guiding the operation claw on the operation claw side. .

[0016] The present invention relates to an elevator governor around which a governor rope is wound, and a base, which is provided in the base via a rotating shaft and rotates according to the operation of the wound governor rope. The speed governor sheave, the flyweight provided on one side of the governor sheave so as to be freely rotatable, and the operation pawl attached to the flyweight, and the flyweight provided rotatably on the rotation shaft. The elevator governor is characterized in that an actuating mechanism for rotating the operating pawl is provided outside the operating pawl.

[0017] According to the present invention, it is possible to provide an elevator governor capable of performing operation confirmation safely and efficiently and maintaining the design and design freedom of a landing and a building. I'll do it.

Brief Description of Drawings

FIG. 1 is a schematic view showing an elevator system provided with a speed governor according to the present invention.

[FIG. 2] FIG. 2 is a side view of the governor according to the present invention with one side force.

FIG. 3 is a side view of the speed governor according to the present invention when the other force is seen.

[FIG. 4] FIGS. 4 (a) and 4 (b) are schematic views showing the relationship between a flyweight and a governor sheave in the present invention.

FIG. 5 is a side view showing the speed governor according to the first embodiment of the present invention.

FIGS. 6 (a) and 6 (b) are views showing the relationship between the operating pawl and the inspection lever of the governor of the first embodiment according to the present invention.

[FIG. 7] FIGS. 7 (a), (b), and (c) show the operating pawl and inspection lever of the governor of the second embodiment according to the present invention. The figure which shows the relationship with a bar.

[FIG. 8] FIGS. 8 (a), 8 (b), and 8 (c) are views showing a relationship between an operating claw and a check lever of a governor according to a third embodiment of the present invention.

FIG. 9 is a side view showing a governor according to a fourth embodiment of the present invention.

[FIG. 10] FIGS. 10 (a), 10 (b), and 10 (c) are views showing a relationship between an operating claw and a check lever of a governor according to a fourth embodiment of the present invention.

FIG. 11 is a side view showing a governor according to a fifth embodiment of the present invention.

FIG. 12 is a side view showing a speed governor according to a sixth embodiment of the present invention.

FIG. 13 is a side view showing a speed governor according to a seventh embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

[0019] 笫 1¾

A first embodiment of an elevator governor 30 according to the present invention will be described below with reference to the drawings. Here, FIG. 1 to FIG. 5 are views showing a first embodiment of the present invention.

First, the overall structure of the elevator will be described with reference to FIG. As shown in FIG. 1, an elevator car 24 is disposed in the hoistway 40 so as to be movable in the vertical direction, and an elevator governor 30 is disposed above the hoistway 40. The governor 30 has a governor sheave 2 as described later, and a governor rope 6 is wound around the governor sheave 2, and the governor rope 6 is provided below the hoistway 40. The lower sheave 23 is wound around. An elevator car 24 is raised and lowered in the hoistway 40, and an emergency stop device 25 is provided at the lower part of the car 24. Further, a safety link 26 is provided on the side of the car 24, and the governor rope 6 is connected to the emergency stop device 25 through the safety link 26. A sheave 28 is provided above the car 24, and a main rope 22 is wound around the sheave 28. The main rope is driven by a lifting machine (not shown), so that the car 24 moves up and down in the hoistway 40.

Next, the elevator governor 30 will be described in detail with reference to FIGS.

As shown in FIGS. 1 to 3, the governor 30 is provided with a base 1 and a rotary shaft 3 in the base 1. A governor sheave 2 that rotates in accordance with the motion of the governor rope 6 that is wound, and a flyweight 8a that is rotatably provided on one side of the governor sheave 2 via pins 51a and 51b, 8b and a ratchet 12 that is rotatably provided on the rotary shaft 3 and that can be engaged with a later-described operating claw 13 of the flyweights 8a and 8b. The ratchet 12 is provided with teeth 31.

In this case, as shown in FIGS. 2 and 4 (a) (b), the flyweights 8a and 8b are provided on one side of the governor sheave 2, and FIGS. 3 and 4 (a) (b) ), The ratchet 12 is provided on the side opposite to the flyweights 8a and 8b of the governor sheave 2. Further, as shown in FIGS. 2 to 4 (a) and 4 (b), an operating claw 13 and a SW cam 35 are connected to the flyweights 8a and 8b. The operating claw 13 and the SW cam 35 are connected to the flyweights 8a and 8b via a connecting member (not shown) extending through the governor sheave 2, and the operating claw 13 and the SW cam 35 are connected to the governor. It is arranged on the side opposite to the flyweight 8a, 8b of the sheave 2, that is, on the side of the ratchet 12. Here, FIG. 4 (b) is a sectional view of the IV-IV section of FIG. 4 (a) as viewed from above.

Further, as shown in FIGS. 2 to 4 (a) and (b), the flyweights 8a and 8b are connected by a link 9, and the operation pawl 13 and the SW cam connected to the flyweights 8a and 8b. 35 can engage with the teeth 31 of the ratchet 12 and the SW lever 34 described later.

Further, as shown in FIGS. 2 and 3, the drive device (not shown) is powered off to the outside of the rotational trajectory of the SW cam 35 of the flyweights 8a and 8b, and the brake device ( SW33 is arranged to stop the car 24 by (not shown), and this SW33 is provided with a swivel lever 34 for driving the SW33.

[0026] As shown in Fig. 4 (a), when the governor sheave 2 rotates, the flyweights 8a, 8b rotate around the pins 51a, 51b in the direction of the arrow F by the centrifugal force. As shown in Fig. 3, flyweights 8a and 8b are attached between the end 8c of the flyweight 8a and the governor sheave 2 on the opposite side of the arrow F direction against this centrifugal force. A biasing spring 10 is provided.

[0027] As shown in FIG. 3, an arm 18 is provided on the outer side of the rotating track of the governor sheave 2 so as to rotate about the pin 36. The arm 18 is provided with a pin 37. A Shu 14 is provided at the center so as to be freely rotatable. This shyu 14 presses the governor rope 6 against the governor sheave 2.

As shown in FIG. 3, a control rod 19 is connected to the ratchet 12, and an end portion of the control rod 19 Is provided with a spring support member 17. Further, a rope gripping spring 15 for pressing the governor rope 6 against the governor sheave 2 by the shoe 14 is provided on the outer periphery of the spring receiving member 17. Further, the control rod 19 and the arm 18 are connected so as to be substantially orthogonal to each other.

[0029] As shown in Figs. 5 and 6 (a) and (b), an inspection lever 42 is provided on the base 1 so as to be rotatable via a rotation pin 41 outside the operating claw 13. The inspection lever 42 is connected to a wire 43 that rotates the inspection lever 42. The wire 43 is routed to a remote location such as a landing.

[0030] Next, the operation of the present embodiment having such a configuration force will be described.

First, the operation of the elevator system provided with the governor 30 will be described with reference to FIGS.

[0032] As shown in Fig. 1, the governor rope 6 moves as the car 24 moves up and down, and the governor sheave 2 of the governor 30 around which the governor port 6 is wound is Rotate. At this time, as shown in FIG. 6 (a), the flyweights 8a and 8b rotate together with the governor sheave 2, and receive centrifugal force by the rotation of the governor sheave 2. When the speed of the car 24 exceeds a predetermined value, as shown in Fig. 4 (a), the governor sheave 2 is piled on the elastic force of the balance spring 10 by the centrifugal force caused by the rotation of the governor sheave 2. On the other hand, the pin 51a, 51b starts to rotate in the direction of arrow F. At this time, the flyweights 8a and 8b are rotated by the link 9 in synchronization with each other.

[0033] When the speed of the car 24 is further increased to the first overspeed (about 1.3 times the normal rated speed), the flyweight as described above is caused by the centrifugal force generated by the rotation of the governor sheave 2. 8a and 8b rotate further (see Fig. 4 (a)), SW cam 35 attached to flyweights 8a and 8b contacts SW lever 34 and rotates SW lever 34 (see Figs. 2 and 3). ).

[0034] In this way, when the SW lever 34 rotates, the SW 33 is operated, the power source of the drive device (not shown) is cut off, and the car 24 is stopped by the brake device (not shown) of the drive device. Power works.

[0035] Even if the main rope 22 is broken, the car 24 does not stop even if the SW33 is activated and the brake device of the driving device is activated, and the car 24 is stopped. It continues to descend and the descending speed of the car 24 accelerates. And the descending speed of the car 24 When the speed becomes the second overspeed (normally about 1.4 times the rated speed), the flyweights 8a and 8b are further rotated as described above by the centrifugal force generated by the rotation of the governor sheave 2 ( 4 (a)), the operating claws 13 provided on the flyweights 8a and 8b engage with the teeth 31 of the ratchet 12 (see FIG. 3).

As a result, the ratchet 12 rotates together with the governor sheave 2, and the spring receiving member 17 provided at the end of the control rod 19 and the control rod 19 is pulled in the rotation direction of the ratchet 12. As a result, the rope gripping spring 15 is compressed, and the repulsive force of the rope gripping spring 15 causes the arm 18 to rotate about the pin 36, and the shear 14 provided on the arm 18 regulates the governor rope 6. Press against the machine sheave 2 and press the governor rope 6 to stop the movement of the governor rope 6 (see Fig. 3). When the movement of the governor rope 6 is stopped in this way, the safety link 26 connected to the governor rope 6 and provided on the side of the car 24 is pulled upward. As the safety link 26 is pulled upward in this way, the safety device 25 provided below the car 24 is activated to stop the lowering of the car 24 (see FIG. 1).

[0037] By the way, as shown in Fig. 5 and Fig. 6 (a) (b), in the governor 30, the base 1 is inspected to be rotatable via the rotation pin 41 outside the operating claw 13. A check lever 42 is provided, and a wire 43 for rotating the check lever 42 is connected to the check lever 42. Therefore, by pulling the wire 43, the inspection lever 42 can be rotated to press the operating claw 13, and the operating claw 13 and the teeth 31 of the ratchet 12 can be engaged.

[0038] In this way, when the operating claw 13 is engaged with the teeth 31 of the ratchet 12, the ratchet 12 rotates together with the governor sheave 2, and the spring support member provided at the control rod 19 and the end of the control rod 19 is provided. 17 is pulled in the direction of rotation of the ratchet 12. As a result, the rope gripping spring 15 is compressed, and the repulsive force of the rope gripping spring 15 causes the arm 18 to rotate about the pin 36 so that the shyu 14 provided on the arm 18 adjusts the governor rope 6. Press against the speed governor sheave 2 and press the governor rope 6 to stop the motion of the governor rope 6 (see Fig. 3). When the movement of the governor rope 6 is stopped in this manner, the safety link 26 connected to the governor rope 6 and provided on the side of the car 24 is pulled upward. Thus, the safety link 26 is pulled upward, so that it is provided below the car 24. The emergency stop device 25 is activated (see Fig. 1).

[0039] Since the operation of the speed governor 30 and the emergency stop device 25 can be checked simply by pulling the wire 43 in this way, it is not necessary for an operator to enter the hoistway 40 to perform inspection work. Therefore, it is possible to work safely and efficiently.

[0040] In addition, since it is not necessary to provide an inspection window at the landing in order to check the operation of the governor 30 and the safety device 25, it is possible to improve the design and design flexibility of the landing and the building. it can.

[0041] Form of second implementation

Next, a second embodiment of the present invention will be described with reference to FIGS. 7 (a), 7 (b) and 7 (c). In the second embodiment shown in FIGS. 7 (a), (b), and (c), a receiving portion 47 that abuts the inspection lever 42 is provided on the side of the operating claw 13, and the others are shown in FIGS. This is substantially the same as the first embodiment shown in FIG.

In the second embodiment shown in FIGS. 7 (a), 7 (b) and 7 (c), the same parts as those in the first embodiment shown in FIGS. Description is omitted.

[0043] As shown in FIGS. 7 (a), (b), and (c), a receiving portion 47 that abuts the inspection lever 42 is provided on the side of the operating claw 13 of the governor 30 in the present embodiment. Therefore, the hooking allowance can be made larger than when the operating claw body 13a alone is in contact with the inspection lever 42. For this reason, the inspection lever 42 can be surely brought into contact with the operating claw 13, so that the interlocking between the operating claw 13 and the inspection lever 42 can be improved. Here, FIG. 7 (c) is a side view of the VII direction force in FIG. 7 (a).

[0044] Form of third implementation

Next, a third embodiment of the present invention will be described with reference to FIGS. 8 (a), (b) and (c). In the third embodiment shown in FIGS. 8 (a), (b), and (c), the arrangement surface of the inspection lever 42 and the arrangement surface of the operating claw 13 are different from each other. 1 is provided with a projection 44 that contacts the operating claw 13, and the rest is substantially the same as the first embodiment shown in FIGS.

In the third embodiment, the same components as those in the first embodiment shown in FIGS. 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted. [0046] As shown in FIGS. 8 (a), (b), and (c), the check lever 42 of the governor 30 is provided such that its placement surface is different from the placement surface of the operating claw 13, Since the projection 44 that contacts the operating claw 13 protrudes from the side of the inspection lever 42, only the protruding portion 44 of the inspection lever 42 remains on the rotation path of the operation claw 13, and the inspection lever 42 can be arranged on the side of the rotating trajectory of the operating claw 13. For this reason, it is possible to prevent the operating claw 13 from interfering with other parts on the arrangement surface of the inspection lever 42. Here, FIG. 8 (c) is a side view as seen from the VIII direction of FIG. 8 (a).

[0047] Fourth embodiment

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 9 and 10 (a), 10 (b) and 10 (c). The fourth embodiment shown in FIGS. 9 and 10 (a), (b), and (c) has a different arrangement and shape of the inspection lever 42, and the others are the same as those shown in FIGS. This is substantially the same as the first embodiment.

That is, in the fourth embodiment shown in FIGS. 9 and 10 (a), (b), and (c), the base 1 is provided on the inner side of the operating claw 13 with the rotation pin 41 interposed therebetween. An inspection lever 42 is provided. Of these, the arrangement surface of the inspection lever 42 and the arrangement surface of the operating claw 13 are provided differently. The inspection lever 42 is provided with a guide portion 45 for guiding the operating claw 13 to the operating claw 13 side. Other configurations are substantially the same as those of the first embodiment shown in FIGS.

In the fourth embodiment shown in FIGS. 9 and 10 (a), (b), and (c), the same parts as those in the first embodiment shown in FIGS. Detailed description will be omitted.

[0050] As shown in FIGS. 9 and 10 (a), (b) and (c), by pulling the wire 43 connected to the inspection lever 42, the inspection lever 42 rotates around the rotation pin 41. (See Fig. 10 (a)). Next, the operating claws 13 of the flyweights 8a and 8b that rotate around the rotary shaft 3 together with the governor sheave 2 abut against the guide portion 45 of the inspection lever 42 and are guided in the direction of the latch 12 (Fig. 10 (b) (c)). Next, the operating claws 13 of the fly weights 8a and 8b are engaged with the teeth 31 of the ratchet 12.

[0051] When the operating claw 13 is engaged with the teeth 31 of the ratchet 12 in this way, the ratchet 12 rotates together with the speed governor sheave 2, and the spring support provided at the control rod 19 and the end of the control rod 19 is provided. 17 is pulled in the direction of rotation of the ratchet 12. As a result, the rope gripping spring 15 The arm 18 rotates about the pin 36 due to the repulsive force of the rope gripping spring 15, and the shyu 14 provided on the arm 18 moves the governor rope 6 against the governor sheave 2. Press and press the governor rope 6 to stop the movement of the governor rope 6 (see Fig. 9). When the movement of the governor rope 6 is stopped in this manner, the safety link 26 connected to the governor rope 6 and provided on the side of the car 24 is pulled upward. As the safety link 26 is pulled upward in this way, the safety device 25 provided below the car 24 is activated (see FIG. 1).

[0052] Since the operation of the speed governor 30 and the emergency stop device 25 can be checked simply by pulling the wire 43 in this way, it is not necessary for an operator to enter the hoistway 40 to perform inspection work. Work safely and quickly.

[0053] In addition, since it is not necessary to provide an inspection window at the landing to check the operation of the governor 30 and the safety device 25, it is possible to maintain the design and design flexibility of the landing and the building. it can.

Further, as shown in FIGS. 10 (a), (b), and (c), only the guide portion 45 of the inspection lever 42 is left on the rotation path of the operating claw 13 and the main body of the inspection lever 42 is the operating claw 13 It can be placed on the side of the rotating track. For this reason, it is possible to prevent the inspection lever 42 from interfering with other parts.

[0055] In addition, since the inspection lever 42 can be provided on the inner side (rotating shaft 3 side) of the operating claw 13, the size of the side of the base 1 on which the inspection lever 42 is provided is reduced. Therefore, the governor 30 can be made compact.

[0056] Form of fifth implementation

Next, a fifth embodiment of the present invention will be described with reference to FIG. The fifth embodiment shown in FIG. 11 uses an inspection lever 4 2 to which a spring 46 whose end is fixed to the base 1 is connected, and the others are shown in FIGS. 9 and 10 (a). (b) This is substantially the same as the fourth embodiment shown in (c).

In the fifth embodiment shown in FIG. 11, the same parts as those in the fourth embodiment shown in FIGS. 9 and 10 (a), (b), and (c) are denoted by the same reference numerals and detailed. The detailed explanation is omitted.

As shown in FIG. 11, a spring 46 is connected to the inspection lever 42 of the governor 30, One end 46 a of the spring 46 is fixed to the base 1. In this case, the other end 46b of the spring 46b is connected to the inspection lever 42. In Fig. 11, when the wire 43 is pulled and the inspection lever 42 is rotated around the rotation pin 41, the inspection lever 42 is automatically moved to the initial position by the elastic force of the spring 46. Can be returned.

[0059] Sixth implementation

Next, a sixth embodiment of the present invention will be described with reference to FIG. In the sixth embodiment shown in FIG. 12, instead of connecting the wire 43 for rotating the inspection lever 42 to the inspection lever 42, the actuator 26 for rotating the inspection lever 42 inward of the inspection lever 42 is provided. The others are substantially the same as those of the fifth embodiment shown in FIG.

In the sixth embodiment shown in FIG. 12, the same parts as those in the fifth embodiment shown in FIG. 11 are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 12, when the actuator 26 provided inside the inspection lever 42 is driven, the inspection lever 42 rotates about the rotation pin 41. Next, the operating claws 13 of the flyweights 8a and 8b that rotate around the rotation shaft 3 together with the governor sheave 2 abut against the guide portion 45 of the inspection lever 42 and are guided in the ratchet 12 direction. Next, the operating claws 13 of the flyweights 8a and 8b 13 are engaged with the teeth 31 of the carraget 12.

[0062] When the operating claw 13 is engaged with the teeth 31 of the ratchet 12 in this way, the ratchet 12 rotates together with the governor sheave 2, and the spring receiving member provided at the end of the control rod 19 and the control rod 19 17 is pulled in the direction of rotation of the ratchet 12. As a result, the rope gripping spring 15 is compressed, and the repulsive force of the rope gripping spring 15 causes the arm 18 to rotate about the pin 36 so that the shyu 14 provided on the arm 18 adjusts the governor rope 6. Press against the speed governor sheave 2 and press the speed governor rope 6 to stop the motion of the speed governor rope 6 (see Fig. 12). When the movement of the governor rope 6 is stopped in this manner, the safety link 26 connected to the governor rope 6 and provided on the side of the car 24 is pulled upward. As the safety link 26 is pulled upward in this manner, the emergency stop device 25 provided below the car 24 is activated (see FIG. 1).

[0063] Since the operation of the governor 30 and the emergency stop device 25 can be confirmed simply by driving the actuator 26 in this way, an operator needs to enter the hoistway 40 for inspection work. You can work safely and quickly.

[0064] In addition, since it is not necessary to provide an inspection window at the landing to check the operation of the governor 30 and the safety device 25, it is possible to maintain the design and design flexibility of the landing and the building. it can.

Further, only the guide portion 45 of the inspection lever 42 can be left on the rotation track of the operating claw 13, and the inspection lever 42 main body can be arranged on the side of the rotation track of the operation claw 13. For this reason, it is possible to prevent the inspection lever 42 from interfering with other parts.

[0066] In addition, since the inspection lever 42 can be provided on the inner side (rotating shaft 3 side) of the operating claw 13, the size of the side of the base 1 on which the inspection lever 42 is provided is reduced. Therefore, the governor 30 can be made compact.

[0067] As shown in FIG. 12, a spring 46 is connected to the inspection lever 42, and the end of the spring 46 is fixed to the base 1, so that the actuator 26 is driven to perform the inspection. Even when the lever 42 is rotated about the rotation pin 41, the inspection lever 42 can be automatically returned to the initial position by the elastic force of the spring 46.

[0068] Further, since the wire 43 is not used, the wire 43 is not stretched by repeatedly using the wire 43, and the large resistance generated when the wire 43 is pulled is not received. Can be easily adjusted.

[0069] Seventh embodiment

Next, a seventh embodiment of the present invention will be described with reference to FIG. In the seventh embodiment shown in FIG. 13, an actuator 26 for rotating the operating claw 13 instead of providing an inspection lever 42 connected to a wire 43 for rotating the operating claw 13 outside the operating claw 13 is shown. The others are substantially the same as those of the first embodiment shown in FIGS.

In the seventh embodiment shown in FIG. 13, the same parts as those in the first embodiment shown in FIGS. 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 13, an actuator 26 for rotating the operating claw 13 is provided outside the operating claw 13. Therefore, by driving the actuator 26, the inspection lever 42 can be rotated to press the operating claw 13, and the operating claw 13 and the teeth 31 of the ratchet 12 can be engaged. [0072] When the operating claw 13 is engaged with the teeth 31 of the ratchet 12 in this way, the ratchet 12 rotates together with the speed governor sheave 2, and the spring support member provided at the control rod 19 and the end of the control rod 19 is provided. 17 is pulled in the direction of rotation of the ratchet 12. As a result, the rope gripping spring 15 is compressed, and the repulsive force of the rope gripping spring 15 causes the arm 18 to rotate about the pin 36 so that the shyu 14 provided on the arm 18 adjusts the governor rope 6. Press against the speed governor sheave 2 and press the speed governor rope 6 to stop the motion of the speed governor rope 6 (see Fig. 13). When the movement of the governor rope 6 is stopped in this manner, the safety link 26 connected to the governor rope 6 and provided on the side of the car 24 is pulled upward. As the safety link 26 is pulled upward in this way, the safety device 25 provided below the car 24 is activated (see FIG. 1).

[0073] Since the operation of the speed governor 30 and the emergency stop device 25 can be confirmed simply by driving the actuator 26 in this way, it is necessary for an operator to enter the hoistway 40 to perform the inspection work. It is possible to work safely and efficiently.

[0074] Further, since it is not necessary to provide an inspection window at the landing to check the operation of the governor 30 and the safety device 25, it is possible to maintain the design and design flexibility of the landing and the building. it can.

[0075] In addition, since the wire 43 is not used, the wire 43 is not stretched by repeatedly using the wire 43, and the large resistance generated when the wire 43 is pulled is not received. Can be easily adjusted.

Claims

The scope of the claims

[1] In the elevator governor on which the governor rope is wound,

The base,

A governor sheave which is provided in the base via a rotating shaft and rotates according to the motion of the governor rope wound around the base;

A flyweight pivotally mounted on one side of the governor sheave and fitted with an operating claw;

And a ratchet that is rotatably provided on the rotating shaft and engages with a flyweight operating claw,

An inspection lever is provided on the base so as to be rotatable via a rotation pin.

A speed governor for an elevator characterized in that the inspection lever rotates to press the operating claw and the operating claw and the ratchet engage.

[2] An inspection lever is provided outside the operating claw via a rotation pin on the base so that the inspection lever can be rotated, and a wire for rotating the inspection lever is connected to the inspection lever.

2. The elevator governor according to claim 1, wherein when the wire is pulled, the inspection lever rotates to press the operating claw, and the operating claw and the ratchet are engaged.

3. The elevator governor according to claim 2, wherein the operating claw has a receiving portion that abuts against the inspection lever on a side.

[4] The inspection lever arrangement surface and the operation claw arrangement surface are different from each other, and the inspection lever is formed with a protruding portion that abuts against the operation claw. The elevator governor described in claim 2 to be applied.

[5] An inspection lever is provided inside the operating claw so as to be rotatable via a rotation pin on the base, and a wire for rotating the inspection lever is connected to the inspection lever.

The inspection lever is provided so that its arrangement surface is different from the arrangement surface of the operation claw, and has a guide portion for guiding the operation claw on the operation claw side,

2. The elevator governor according to claim 1, wherein the pulling of the wire causes the check lever to rotate to guide the operating claw by the guide portion, and the operating claw and the ratchet are engaged with each other. .

6. The elevator governor according to claim 2, wherein the check lever is connected to the other end of a spring having one end fixed to the base.

[7] An inspection lever is provided inside the operating claw so as to be rotatable via a rotation pin on the base, and an actuator for rotating the inspection lever is provided inside the inspection lever. The elevator governor according to claim 1, further comprising a guide portion that guides the operating claw on the side of the operating claw, and is provided so that the arrangement surface is different from the arrangement surface of the operating claw. .

[8] In the elevator governor on which the governor rope is wound,

The base,

An elevator governor characterized in that an actuator for rotating the operating claw is provided outside the operating claw.