JP2016108119A - Vibration stop device of governor rope and installation method of vibration stop device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently install a vibration stop device of a governor rope satisfying a latest earthquake resistance reference to a hoistway.SOLUTION: A vibration stop device of a governor rope according to an embodiment of the invention comprises: a bracket 20 supported to a car guide rail 13 for guiding lifting up and down of a car 14; and an U-shaped bolt 32 which is coupled to the bracket 20 with nuts 33, 34 to surround a governor rope 17. The bracket 20 has a groove 30 to which the U-shaped bolt 32 to which nuts 33, 34 are attached is attached.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to a governor rope bracing device and a mounting method for the bracing device.

  The elevator is provided with a governor device that operates when the moving speed of the car exceeds a prescribed value and automatically stops the car. The governor sheave of the governor device is wrapped with a governor rope that travels in the same direction and at the same speed as the car is moving up and down. The governor device detects that the moving speed of the car has exceeded a set acceleration from the rotation of the governor sheave, and makes the car emergency stop.

  The governor rope may swing greatly due to resonance when an earthquake occurs, particularly when long-period ground motion occurs. In the worst case, the governor rope may be caught by equipment or structures installed in the hoistway, and the governor device may not function.

  Therefore, the governor rope is provided with a brace that prevents the governor rope from swinging when an earthquake occurs. As this kind of bracing, a U-bolt attached to a bracket supported by a guide rail of a car so as to surround a governor rope is known (for example, Patent Document 1). Since the U-bolt restrains the displacement of the governor rope, it can be effectively used as a brace that prevents resonance with long-period ground motion.

  In recent years, the seismic standards of elevators are in a tendency to be strengthened. The latest seismic standards stipulate that, in order to prevent the governor rope against long-period ground motion, a lateral protector is provided to prevent the rope and tail cord from wrapping along with the U-bolt.

JP 2003-81557 A

  Conventionally, elevator renewal and refurbishment have been carried out, and the governor rope has been fitted with a brace that satisfies the latest seismic standards.

  Conventionally, when a nut is attached to a U-bolt used as a brace, it cannot be attached to a bracket as it is. Actually, the nut is once removed from the U-bolt, and the existing governor rope is passed through the U-bolt, and then the nut is fastened. At the same time, the horizontal protector and the like are fastened together and fixed to the bracket.

  However, in construction to install governor rope swings, the number of locations where the swings are installed increases in proportion to the length of the lifting process. Don't be.

  Moreover, since it is a work at a high place, the operation of attaching the U bolt to the bracket so as to surround the governor rope, and fastening the nut while fitting the U bolt to the U bolt is performed carefully while ensuring safety. For this reason, if there are many places where the governor rope is installed, it takes a long time to install all the controls.

  The present invention has been made in view of the above-described problems of the prior art, and is a governor rope bracing device capable of efficiently performing a work of attaching a governor rope bracing device that satisfies the latest earthquake resistance standards to a hoistway and It aims at providing the attachment method of a bracing device.

  In order to achieve the above object, a governor rope anti-sway device according to an embodiment of the present invention is provided in a governor rope anti-sway device disposed in a hoistway to suppress a governor rope of a governor. A bracket supported by a car guide rail for guiding the raising and lowering of the car, and a U-bolt fastened with a nut to the bracket so as to surround the governor rope, and the nut is attached to the bracket A groove is formed to allow attachment of the U-bolt as it is.

  In addition, a method for attaching a governor rope anti-seismic device according to an embodiment of the present invention is a method of attaching a governor rope anti-seismic device disposed in a hoistway in order to suppress a shake of a governor governor rope due to an earthquake. A bracket formed with a groove on which a U-bolt with a nut attached can be attached to a bracket for fastening a U-bolt as a swing brace to a car guide rail that guides the lifting and lowering of the car. With the at least one end of the bolt engaged with the groove, the governor rope is inserted inside the U-bolt, and then the nut is fastened to fix the U-bolt to the bracket. It is characterized by.

  In addition, the governor rope anti-seismic device according to the embodiment of the present invention is a governor rope anti-seismic device arranged in a hoistway in order to suppress the governor rope of the governor from being shaken by an earthquake. A bracket that is slidably supported by a guide rail, a clip that restrains the governor rope to the bracket, and a lateral protector that has one end fixed to the bracket and the other end contacting the wall of the hoistway. It is a feature.

It is a figure which shows the hoistway of the elevator provided with the restraint of the governor rope by embodiment of this invention. 1 is an exploded view showing a governor rope bracing device according to a first embodiment of the present invention. FIG. It is the figure which looked at the restraining apparatus of the governor rope by 1st Embodiment of this invention from the top. It is a figure which shows the attachment order of the anchoring device of the governor rope by 1st Embodiment of this invention from the top. It is an exploded view which shows the governor rope bracing device according to the second embodiment of the present invention. It is a figure which shows the attachment order of the anchoring apparatus of the governor rope by 2nd Embodiment of this invention from the top. It is a side view which shows the governor rope bracing device by 3rd Embodiment of this invention. It is a figure which shows the attachment order of the anchoring apparatus of the governor rope by 3rd Embodiment of this invention from the top. It is a side view which shows the governor rope bracing device by 4th Embodiment of this invention. It is a side view which shows the restraining apparatus of the governor rope by 5th Embodiment of this invention.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of a governor rope bracing device and a mounting method of the shaking device according to the present invention will be described with reference to the accompanying drawings.
(First embodiment)
FIG. 1 is a diagram showing an overview of an elevator to which a governor rope anti-sway device according to an embodiment of the present invention is applied.
In FIG. 1, reference numeral 10 indicates an elevator hoistway, and 14 indicates a passenger car. The car 14 is suspended by a main rope 11, and the main rope 11 is wound around a main sheave 12 of a hoisting machine. The car 14 moves up and down in the hoistway 10 while being guided by a car guide rail 13 provided in the hoistway 10.

  A governor device (speed governor) 16 is installed in the machine room. This governor device 16 includes a governor sheave 15, and a limit switch for cutting off the power of the hoisting machine when the moving speed of the car 14 exceeds the set first overspeed, and the moving speed of the car 14 is set. When the second overspeed is exceeded, a rope gripping mechanism for gripping the governor rope 17 is provided.

  On the other hand, the car 14 is provided with an emergency stop device 25 for emergency stopping the car 14. The emergency stop device 25 grips the guide rail 13 when the main rope 11 is cut or the rotational speed of the hoisting machine becomes abnormal and the speed of the car 14 exceeds the second overspeed, This is a device for mechanically stopping the car 14 in an emergency.

  The governor rope 17 is wound endlessly around the governor sheave 15 and the sheave 18 of the governor tensioner. A weight 19 is suspended from the sheave 18 of the governor tensioner to apply tension to the governor rope 17.

  The governor rope 17 is connected via a governor hitch 21 to a safety link 24 that operates the safety device 25, and the governor rope 17 travels in the same direction and at the same speed as the car 14 moves up and down. .

  In this embodiment, when a long-period ground motion occurs, a restraint that prevents the governor rope 17 from resonating and swinging greatly is provided using a U-bolt as follows.

In FIG. 1, a bracket 20 is installed on the car guide rail 13 so as to install a restraint for the governor rope 17 at a predetermined interval. Since the base end portion of the bracket 20 is fixed to the car guide rail 13, the bracket 20 is cantilevered horizontally. A U-shaped bolt 32 and a lateral protector 22 that prevents the governor rope 17 and the tail cord from wrapping around are attached to the front end side of the bracket 20 as a swing of the governor rope 17.
As shown in FIG. 2, the U-shaped bolt 32 is a bolt made of a steel bar bent into a U-shape and having male threads cut at both ends thereof. When the U-bolt 32 is fastened to the bracket 20, the nut 33 and the nut 34 are paired and screwed into the male screw of the U-bolt 32, respectively. Reference numeral 35 indicates a guard member for preventing the swinged ropes from being caught on the nut 34 or the like.

  The bracket 20 is a long plate-shaped metal member. The bracket 20 is formed with a long groove 30 that is cut from its tip and extends in the longitudinal direction. The long groove 20 is not closed at the tip of the bracket 20 but has an open groove shape. The governor rope 17 is located in the middle of the long groove 30.

  The lateral protector 22 is a member made of an elongated metal plate and is fixed to the bracket 20 by a U-shaped bolt 32. The lateral protector 22 is formed with a long groove 36 that is cut from the tip in the same manner as the bracket 20. As shown in FIG. 1, the distal end of the horizontal protector 22 is in contact with the wall surface of the hoistway.

Next, a procedure for attaching the U-bolt 32 and the lateral protector 22 to the bracket 20 will be described with reference to FIGS.
Here, FIG. 3 is a top view of a state in which the U-shaped bolt 32 is fixed to the bracket 20 together with the lateral protector 22.
The U-shaped bolt 32 is attached to the bracket 20 so as to surround the governor rope 17, and the lateral protector 22 is fixed to the bracket 20 by being sandwiched between nuts 33 and 34. Thus, when attaching the U-shaped bolt 32 and the lateral protector 22 to the bracket 20, as shown in FIG. 4, the U-shaped bolt 32 can be attached with the nuts 33 and 34 attached as follows.

In FIG. 4, nuts 33 and 34 are left attached to the male screw portions at both ends of the U-shaped bolt 32 in advance.
In FIG. 2, one end of the U-shaped bolt 32 is inserted into the long groove 30 from the tip of the bracket 20. The U-shaped bolt 32 moves between the nut 33 and the nut 34 in the long groove 30 and moves the U-shaped bolt 32 along the long groove 30. At this time, as shown in FIG. 4, the governor rope 17 is positioned outside the U-shaped bolt 32.

  On the other hand, the other end of the U-shaped bolt 32 is not inserted into the long groove 30, and a gap for inserting the governor rope 17 into the inside of the U-shaped bolt 32 is provided between this end and the tip of the bracket 20. Secure.

  Next, as shown in FIG. 4, the governor rope 17 is moved into the U-bolt 32. Thereafter, the U-bolt 32 is moved to the left in FIG. 4, and the U-bolt 32 is moved along the long groove 30 to a predetermined installation position while the right end is inserted into the long groove 30.

  At both ends of the U-shaped bolt 32, a margin larger than the thickness of the lateral protector 22 is made between the nut 33 and the bracket 20, and the both ends of the U-shaped bolt 32 are inserted into the long groove 36 of the lateral protector 22. The protector 22 is moved to the left in FIG. 4 to attach the lateral protector 22 to the bracket 20.

  Thereafter, if the nuts 33 and 34 are tightened, the U-bolt 32 can be fixed simultaneously with the lateral protector 22 as shown in FIG.

  As described above, according to the present embodiment, in the operation of attaching the U-shaped bolt 32 to the existing governor rope 17 as a backrest, the U-shaped bolt 32 is attached to the bracket 20 with the nuts 33 and 34 attached thereto. As in the prior art, the time-consuming work of removing the nuts 33 and 34 from the U-shaped bolt 32 and attaching the nuts 33 and 34 after inserting the U-shaped bolt 32 into the bolt hole can be omitted. And since the horizontal protector 22 is also attached simultaneously, the operation | work which attaches the bracing device which satisfy | fills the latest earthquake-proof standard to a hoistway can be performed efficiently.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those of the first embodiment in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the second embodiment, L-shaped grooves 40 and 41 are formed in the bracket 20. The L-shaped grooves 40 and 41 are grooves that are bent at a right angle (horizontal direction) after extending in the vertical direction using the upper edge of the bracket 20 as the inlet of the groove. The distance between the L-shaped grooves 40 and 41 substantially corresponds to the distance between both ends of the U-shaped bolt 32. The governor rope 17 is located in the middle of these L-shaped grooves 40 and 41.

According to 2nd Embodiment comprised as mentioned above, the U-shaped volt | bolt 32 and the horizontal protector 22 can be attached to the bracket 20 as follows.
It is the same as in the first embodiment that the nuts 33 and 34 are previously attached to the male threaded portions at both ends of the U-shaped bolt 32 in advance.

  In FIG. 6, both ends of the U-shaped bolt 32 are inserted into the L-shaped grooves 40 and 41 from above the bracket 20 so as to surround the governor rope 17 with the U-shaped bolt 32. At this time, what is put into the grooves 40 and 41 is a portion between the nuts 33 and 34 at both ends of the U-shaped bolt 32.

  Next, the U-bolt 32 is moved in the horizontal direction along the L-shaped grooves 40 and 41. Then, the portion protruding from the bracket 22 is inserted into the long groove 22 of the horizontal protector 22, and the horizontal protector 22 is pushed to the left and attached to the bracket 20. Thereafter, if the nuts 33 and 34 are tightened, the U-shaped bolt 32 can be fixed simultaneously with the lateral protector 22.

  As described above, the nuts 33 and 34 are attached to the U-bolt 32 with the nuts 33 and 34 attached thereto, so that the nuts 33 and 34 are removed from the U-bolt 32 and the U-bolt 32 is attached to the bolt hole as in the prior art. The troublesome work of attaching the nuts 33 and 34 again after being inserted into can be omitted. And since the horizontal protector 22 is also attached simultaneously, the operation | work which attaches the bracing device which satisfy | fills the latest earthquake-proof standard to a hoistway can be performed efficiently.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. The same components as those of the first embodiment in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted.
This third embodiment is an embodiment in which a vertical groove 42 and a groove 43 for temporarily attaching a U-shaped bolt 32 are formed in the bracket 20. One end of a U-shaped bolt 32 is engaged with the groove 43, and the U-shaped bolt 32 is temporarily attached to be rotatable.

  The vertical hole 42 is a groove cut downward from the upper edge of the bracket 20. The distance between the vertical hole 42 and the groove 43 corresponds to the distance between both ends of the U-shaped bolt 32.

  According to 3rd Embodiment comprised as mentioned above, the U-shaped volt | bolt 32 and the horizontal protector 22 can be attached to the bracket 20 as follows.

  The U-shaped bolt 32 is temporarily attached to the bracket 20 so as to surround the governor rope 17 with one end of the U-shaped bolt 32 engaged with the groove 43 and the other end of the U-shaped bolt 32 positioned above the bracket 20. . In this temporarily attached state, the nuts 33 and 34 are kept apart from each other in advance on the male screw portions at both ends of the U-shaped bolt 32.

  Therefore, by tilting the U-shaped bolt 32, the free end of the U-shaped bolt 32 can be put into the vertical groove 42. Thereafter, the end portion of the U-shaped bolt 32 protruding from the bracket 22 is inserted into the long groove 22 of the horizontal protector 22, and the horizontal protector 22 is pushed to the left to be attached to the bracket 20. Thereafter, if the nuts 33 and 34 are tightened, the U-shaped bolt 32 can be fixed simultaneously with the lateral protector 22.

  As described above, since the U-shaped bolt 32 and the lateral protector 22 can be efficiently attached at the same time, it is possible to efficiently perform the work of attaching a bracing device that satisfies the latest earthquake resistance standards to the hoistway.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those of the first embodiment in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted.
The fourth embodiment is an embodiment in which oblique grooves 45a and 45b cut obliquely from the upper edge and lower edge of the bracket 20 toward the governor rope 17 are formed.

  In the case of the slant grooves 45a and 45b, the bugabana rope 17 is located between the slant grooves 45a and 45b.

  According to the fourth embodiment as described above, the U-bolt 32 can be attached simply by holding the U-bolt 32 so as to surround the governor rope 17 and inserting both ends thereof into the slant grooves 45a and 45b. . Thereafter, the U-bolt 32 can be fixed simultaneously with the lateral protector 22 by pushing the lateral protector 22 to the left and attaching it to the bracket 20 and tightening the nuts 33 and 34.

  As described above, since the installation can be simplified without making the operator think about the direction and order of the attachment to the bracket 20, the working time can be shortened while considering the safety in the high place work.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those of the first embodiment in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted.
The first to fourth embodiments described above are embodiments that use the U-shaped bolt 32 as a restraint for the governor rope 17, but the fifth embodiment is an embodiment that does not use the U-shaped bolt 32. .

  In FIG. 10, one end of the bracket 20 is lightly engaged with the car guide rail 13 by rail grips 51 a and 51 b, and the bracket 20 can move while sliding on the car guide rail 13. In the case of this embodiment, the governor rope 17 is restrained at the tip of the bracket 20 by a rope fixing clip 52, and this rope fixing clip 52 plays a role of shaking the governor rope 17. The horizontal protector 22 is made of a flexible metal material, one end of which is bolted to the bracket 20 and the other end is pressed against the wall of the hoistway.

  According to the fifth embodiment as described above, since the bracket 20 is slidably engaged with the car guide rail 13, the lateral protector 22 attached to the bracket 20 is connected to the hoistway as the governor rope 17 moves. Move while touching the wall.

  Since the lateral protector 22 moves with the movement of the car as described above, it is not necessary to provide the plurality of parts at intervals in the vertical direction as in the case of the first to fourth embodiments. The horizontal protector 22 according to the embodiment only needs to be installed at one place on the hoistway, and installation work that satisfies the latest earthquake resistance standards can be greatly simplified.

  As mentioned above, although the preferred embodiment was mentioned and demonstrated about the governor rope bracing apparatus which concerns on this invention, these embodiment was given as an illustration and does not intend the restriction | limiting of the scope of the invention. Of course, the novel apparatus, method and system described in the specification can be implemented in various forms, and various omissions, substitutions and changes can be made without departing from the spirit of the present invention. is there. The claims and their equivalents are intended to cover the embodiments or improvements thereof within the spirit of the invention.

DESCRIPTION OF SYMBOLS 10 ... Hoistway, 11 ... Main rope, 12 ... Main sheave, 13 ... Guide rail, 14 ... Ride car, 16 ... Governor device, 17 ... Governor rope, 20 ... Bracket, 22 ... Side protector, 25 ... Emergency stop device, 30 ... long groove, 32 ... U-bolt, 33 ... nut, 34 ... nut, 36 ... long groove, 40, 41 ... L-shaped groove, 42 ... vertical groove, 45a, 45b ... oblique groove, 52 ... rope fixing clip

In order to achieve the above object, a governor rope anti- sway device according to an embodiment of the present invention is provided in a governor rope anti- sway device disposed in a hoistway to suppress a governor rope of a governor. A bracket supported by a car guide rail for guiding the raising and lowering of the car, and a U-bolt fastened with a nut to the bracket so as to surround the governor rope, and the nut is attached to the bracket Grooves are formed to allow the U-bolts to be attached, and the grooves of the brackets are cut obliquely from the upper and lower edges of the brackets, and the ends of the U-bolts are fitted into the grooves. It consists of a pair of diagonal grooves that can be joined.

The method of attaching the governor rope anti-seismic device according to the embodiment of the present invention includes a method of installing the governor rope anti-seismic device arranged in the hoistway to suppress the governor rope of the governor rope from being shaken by an earthquake. A bracket formed with a groove on which a U-bolt with a nut attached can be attached to a bracket for fastening a U-bolt as a swing brace to a car guide rail that guides the lifting and lowering of the car. the least also one end of the bolt in a state of being engaged with the groove, after putting the governor rope inside the U-bolt, to fix the U-bolt to the bracket by tightening the nut, A horizontal protector having a long groove in which the U-shaped bolt is loosely fitted and having a tip abutting against the wall surface of the hoistway is engaged with the long groove at the end of the U-shaped bolt. Attached to Tsu bets, it is characterized in that to fix the fastening simultaneously with the lateral protector of the U-bolt to the bracket.

Claims (8)

In the governor rope anti-vibration device placed in the hoistway to suppress the governor rope shake due to the earthquake of the governor,
A bracket supported by a car guide rail for guiding the raising and lowering of the car,
A U-bolt fastened with a nut to the bracket so as to surround the governor rope,
The bracket is provided with a groove for enabling attachment of the U-bolt with the nut attached thereto.   2. The governor rope bracing apparatus according to claim 1, wherein the groove of the bracket is a groove extending in a longitudinal direction in which both ends of the U-bolt can be inserted from the tip of the bracket. 3.   2. The governor rope anti-sway device according to claim 1, wherein the groove of the bracket includes a pair of L-shaped grooves into which each end of the U-bolt can be inserted from above the bracket.   2. The governor rope swing according to claim 1, wherein the groove of the bracket is a vertical groove in which the U-bolt temporarily attached to the tip of the bracket can be fitted from above. Stop device.   The groove of the bracket is formed by a pair of oblique grooves that are cut obliquely from the upper edge and the lower edge of the bracket, respectively, and the end portions of the U-bolts can be fitted to each other. The governor rope anti-seismic device described in 1.   6. The bracket has a long groove into which the U-bolt is loosely fitted, and a lateral protector whose tip abuts against a wall surface of the hoistway is attached by fastening the U-bolt. The governor rope anti-seismic device according to any one of the above. In the method of attaching the governor rope anti-vibration device arranged in the hoistway in order to prevent the governor rope of the governor from shaking due to the earthquake,
Using a bracket formed with a groove that allows the U-bolt to be attached with a nut attached to a bracket that fastens a U-bolt as a backrest to a car guide rail that guides the raising and lowering of the car,
With at least one end of the U-bolt engaged with the groove, the governor rope is inserted inside the U-bolt, and then the nut is fastened to attach the U-bolt to the bracket. A method of attaching a governor rope anti-vibration device characterized by fixing.   A lateral protector having a long groove in which the U-bolt is loosely fitted and having a tip abutting against the wall surface of the hoistway is attached to the bracket while engaging the end of the U-bolt with the long groove, and the bracket is attached to the bracket. The method for attaching the governor rope anti-seismic device according to claim 7, wherein the lateral protector is fixed simultaneously with fastening of the U-bolt.

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