JP2000313577A - Replacing method for punched steel tape for elevator floor selection machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a replacing method for a punched steel tape for an elevator floor selection machine capable of safely replacing old steel tapes with new once in a short time. SOLUTION: This replacing method comprises a drive pulley idle running process S1 allowing a punched steel tape drive pulley to have a idle spin state, a reel setting process S2 setting a feed-out reel in a car and setting a winding reel to a steel tape tension pulley on the inner bottom of a pit, a new/old steel tape attachment process S3 attaching one end of an old steel tape to one end of a new steel tape and attaching the other end of the old steel tape to the winding reel, a new steel tape laying process S4 laying the new steel tape while winding the old steel tape around the winding reel with the car stopped, a new steel tape fixing process S6 fixing both ends of the new steel tape to both ends of the car, and a reel removal process S7 removing the winding reel and the feed-out reel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of exchanging perforated steel tape for an elevator floor selecting machine.

[0002]

2. Description of the Related Art In general, as a method of replacing a perforated steel tape for an elevator floor selecting machine, an operator rides on a car, and the existing perforated steel tape (hereinafter, referred to as "elevating the car") is operated while ascending the car. A method is known in which a new perforated steel tape (hereinafter, referred to as a new steel tape) is attached while the car is being lowered while collecting the old steel tape.

[0003]

In the above-mentioned conventional replacement method, the steel tape collecting operation while the car is being raised is dangerous, and the time required for the operation is increased to about 2 hours. I found that there was a point.

An object of the present invention is to provide a method of replacing a perforated steel tape for an elevator floor selecting machine which can solve the above-mentioned problems.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a driving pulley idling step of making a driving pulley for a perforated steel tape in a floor selector driving device installed in a machine room idle. A reel setting step of setting a new steel tape sending reel on a car and an old steel tape take-up reel on a guide rail before or after execution of an idling step, and a reel setting step. After the execution, the one end of the old steel tape is attached to one end of the new steel tape wound on the new steel tape sending reel, and the other end of the old steel tape is attached to the old steel tape take-up reel. After the new and old steel tape mounting process has been performed, with the car stopped, A new steel tape laying step of laying a new steel tape while winding the old steel tape on the tape take-up reel, and after executing this new steel tape laying step, disconnect one end of the old steel tape and one end of the new steel tape. The old steel tape is wound on the old steel tape take-up reel, the old steel tape take-up reel is removed from the guide rail, and one end of the new steel tape is wound on a steel tape tension pulley provided at the bottom of the pit. After performing the steel tape tension pulley winding step and the steel tape tension pulley winding step, one end of the new steel tape is fixed to the car, and the other end of the new steel tape is wound with the new steel tape. New steel tape separated from take-up reel A new steel tape fixing step of fixing the other end side to the car, a reel removing step of removing the new steel tape sending reel before or after the execution of the new steel tape fixing step, and a reel removing step for the perforated steel tape. This is achieved by a driving pulley returning step of returning the driving pulley from the idling enabled state to the original state.

[0006]

An embodiment of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, a method of replacing a perforated steel tape 2 (hereinafter referred to as an old steel tape 2) for a floor selecting machine of an elevator 1 includes a driving pulley idling step S1.
A reel setting step S2, a new and old steel tape attaching step S3, a new steel tape laying step S4, a steel tape tension pulley winding step 5, a new steel tape fixing step S6, a reel removing step S7, and a drive. It is at least composed of a pulley return step S8.

As shown in FIG. 2, the elevator 1 includes a hoistway 3, a steel tape tension pulley 5 provided at the bottom of a pit 4 of the hoistway 3, and a machine room 6 formed at an upper end of the hoistway 3. A floor selecting machine driving device 7 provided in the machine room 6, a floor selecting machine driving pulley 8 provided in the floor selecting machine driving device 7, and a car 9 moving up and down in the hoistway 3.
And at least a guide rail 3A provided on a side wall of the hoistway 3.

The state immediately before the start of the winding operation of the old steel tape 2 is as shown in FIG.
An old steel tape take-up reel 10 is provided, and a new steel tape take-out reel 11 is provided on the car 9. The perforated steel tape 12 for a floor selection machine (hereinafter referred to as a new steel tape 12) wound around the new steel tape delivery reel 11 and the old steel tape 2 are connected by a connection structure 13.

Further, one end 12 of the new steel tape 12
Immediately after the winding operation of winding the a side on the steel tension pulley 5 provided on the bottom 4 of the pit, as shown in FIG. 3, the old steel tape winding reel 10 is removed from the guide rail 3A.

As shown in FIG. 3, the connection structure 13 overlaps one end 12a of the new steel tape 12 and one end 2a of the old steel tape 2 by about 300 mm, and then substantially centers the overlapped portion between the new steel tape 2 and the old steel tape 2. Are wound and fixed with bind wires 14 using the holes 2b and 12b provided in the first and second tapes, and one end edge 12c of the new steel tape 12 and one end edge 2c of the old steel tape 2 are vinyl tapes 15 and 15 respectively.
a and old steel tape 12,
The two are firmly connected. The vinyl tapes 15 and 15a have a width of 18 mm, and
One having an adhesive applied to one side is used.

As shown in FIG. 5, the old steel tape take-up reel 10 is fixed to a guide rail 3A by a fixing jig 16.
Fixed to As shown in FIG. 6, the fixing jig 16 is a steel base 1 having a length of 850 mm × a width of 550 mm × a thickness of 3 mm.
6A and the mounting shaft 1 of the old steel tape take-up reel 10
6B and two fixing brackets 16C for fixing the steel base 16A to the guide rail 3A. The mounting shaft 16B is
It consists of a round steel bar and is welded to the steel base 16A.

The new steel tape delivery reel 11 is
It is mounted on the car 9 by a take-up reel mounting jig 24. The take-up reel mounting jig 24 includes a pedestal 17 made of a flat steel plate, and two round steel pipe pole members 18, 1, which are suspended from the pedestal 17 and opposed to each other.
8a, a support plate 19 made of one steel plate fixed to the pole members 18 and 18a, and a new steel tape delivery reel 11 which is provided substantially at the center of the support plate 19 and extends in the horizontal direction to be rotatable. And a shaft body 20 made of a round steel pipe for supporting the shaft body 20. Pedestal 17, pole material 1
8, 18a, the support plate 19, and the shaft body 20 are integrated by welding. The pedestal 17 has a size of 120 mm long × 340 mm wide × 3 mm thick.
The interval between the pole materials 18 and 18a is 200 mm,
And it consists of a round steel pipe with an outer diameter of 18 mm. Support plate 1
9 is 80 mm long x 200 mm wide x 3 mm thick
Is used. The outer diameter of the shaft body 20 is 38
mm.

An old steel tape take-up reel 10 detachably provided on a mounting shaft 16B of a fixing jig 16 is shown in FIG.
As shown in FIG. 9, a cylindrical core member 21 made of expanded polystyrene is provided, and two side plates 22 and 22a provided on both sides of the core member 21 and facing each other. The outer shape of the core 21 is 150 mm. Side plates 22, 22
“a” is made of a regular square cardboard, and has a shape obtained by cutting four corners of the cardboard. The core material 21 is formed on both side plates 2.
It is fixed to the approximate center of 2, 22a with an adhesive.

[0015] The new steel tape delivery reel 11
As shown in FIG. 10, the reel 9 is attached to the crosshead 23 of the car 9 using a take-up reel attaching jig 24. The new steel tape take-out reel 11 has exactly the same structure as the old steel tape take-up reel 10. The new steel tape delivery reel 11 is detachably attached to the shaft 20 of the take-up reel attachment jig 24.

The steel tape holding jig 25 removes the old steel tape 2 already provided in the car 9 from the car 9.
From the old steel tape 2
For temporary fixing so that both ends of the
As shown in FIG. 11, a long body 25a made of a round steel material, a large-diameter head 25b is fixed to one end of the long body 25a, and a screw part 25c formed on the outer periphery of the other end of the long body 25a. Has a structure in which a flange 26 is screwed.

The drive pulley 8 for perforated steel tape in the floor selection machine drive device 7 is, as shown in FIG.
Clutch presser plate 2 until drive sprocket 27 idles
By loosening the bolts 29, 29a, 29b, 29c of No. 8, the vehicle can be idle.

The driving pulley idling step S1, the operator enters the machine room, and the driving pulley 8 for perforated steel tape in the floor selecting machine driving device 7 installed in the machine room.
To a state in which the idle rotation is possible.

The reel installation step S2 is a step in which a worker rides on the car 9 and places the new steel tape delivery reel 11 on the car 9 before or after the execution of the drive pulley idling step S1. And a step of installing the old steel tape take-up reel 10 on the guide rail 3A.

The new and old steel tape mounting step S3 is a step in which, after the reel setting step S2, the worker riding on the car 9 winds one end 2a of the old steel tape 2 around the new steel tape sending reel 11. Attached to one end 12a of the new steel tape 12 by a connection structure 13,
In addition, it refers to a new and old steel tape attaching process of attaching the other end 2b of the old steel tape 2 to the old steel tape take-up reel 10.

The new steel tape laying step S4 includes:
After the new and old steel tape attaching process S3 is performed, the car 9
In a state in which the old steel tape 2 is wound on the old steel tape take-up reel 10, the new steel tape 12 is laid in the drive pulley 8 and the hoistway 3 by an operator who has been riding on the car 9 in a state where is stopped. Refers to the step of performing

The steel tape tension pulley winding step S5 includes a new steel tape laying step S4,
One end 2a of the old steel tape 2 and one end 12a of the new steel tape 12 are cut off by an operator riding on the car 9 and one end 1 of the new steel tape 12 is cut off.
2a is dropped near the steel tape tension pulley 5 provided on the bottom 4 of the pit, and the old steel tape take-up reel 1 on which the old steel tape 2 is wound.
The step of removing the fixing tool 16 and the fixing jig 16 from the guide rail 3A and winding the one end 12a side of the new steel tape 12 around the steel tape tension pulley 5 by an operator in the pit. At this step, the old steel tape take-up reel 10 and the fixing jig 16 that have taken up the old steel tape 2 are moved from above the car 9 to the landing side so as not to hinder execution of the next step. It is good to move it.

The new steel tape fixing step S6 includes:
After performing the steel tape tension pulley winding step S5,
The worker in the pit will check one end 1 of the new steel tape 12
2a side is tightly fixed to the car 9 and an operator riding on the car 9 separates the other end 12b side of the new steel tape 12 from the new steel tape take-up reel 11, and the new steel tape. 12 the other end 12b
This is a step of fastening the side to the car 9.

The reel removing step S7 is a step of removing the new steel tape sending reel 11 and the take-up reel mounting jig 24 before or after the execution of the new steel tape fixing step S6. In this step, the new steel tape sending reel 11 and the take-up reel mounting jig 24 removed in this step may be moved from the car 9 to the landing side.

The drive pulley returning step S8 is a step in which, after the reel removing step S7, the operator enters the machine room and returns the drive pulley 27 for the perforated steel tape from the idling enabled state to the original state. Say.

FIG. 13 shows an example of a concrete work of replacing old and new steel tapes 12 and 2 using the method of replacing a perforated steel tape for an elevator floor selecting machine according to the present invention.
This will be described with reference to FIG.

With the car 9 stopped at the top floor of the hoistway 3 and the main power supply of the elevator cut off in the machine room 6, as shown in step T1 of FIG. And pulley 8 for perforated steel tape
With the bolts 29, 29a, 29 of the clutch holding plate 28.
By loosening b and 29c, idle rotation is enabled.
In this idle state, the old steel tape 2 is wound around the drive pulley 8.

After the end of step T1, as shown in step T2 of FIG. 13, the main power of the elevator is turned on, the car 9 is moved to the lowest floor, and the maintenance staff on the car 9 The car 9 is stopped again at a position where it is possible to get on and off and enter and exit the pit 4 of the hoistway 3.

After the end of step T2, as shown in step T3 of FIG. 13, the new steel tape delivery reel 11 is set on the cross head 23 of the car 9, and
The old steel tape take-up reel 10 is installed on the guide rail 3A for the counterweight.

After the end of step T3, as shown in step T4 of FIG. 13, the old steel tape 2 is cut off from the car 9 and the steel tape presser is held so that one end 2a of the old steel tape 2 does not separate from the car 9. Jig 25
To temporarily fix to the old steel tape 2 itself. In this case, the steel tape holding jig 25 may be detachably engaged with the hole 2b of the old steel tape 2.

After the end of step T4, as shown in step T5 in FIG. 13, the other end 2b of the old steel tape 2 is brought into a state where it can be wound on the old steel tape take-up reel 10. In addition, as shown in Step T6 of FIG.
Connect by 3.

After the end of step T6, the tape holding jig 25 is removed from the old steel tape 2 as shown in step T7 of FIG.

After the end of step T7, as shown in step T8 of FIG.
The operator rotates the old steel tape 2 on the old steel tape take-up reel 10 while rotating the old steel tape 2 from the new steel tape delivery reel 11.
2, the new steel tape 12 is laid at a predetermined position by moving the new steel tape 12 to the old steel tape take-up reel 10 via the drive pulley 8.

After the end of step T8, as shown in step T9 of FIG. 14, if the old steel tape 2 is almost wound on the old steel tape take-up reel 10, the old steel tape 2 and the new steel tape 12 are connected. Cut off the structure 13 part. The old steel tape take-up reel 10 having taken up the old steel tape 2 and the fixing jig 16 are moved from above the car 9 to the landing side.

After the end of step T9, as shown in step T10 of FIG. 14, one end 12a of the new steel tape 12 separated from the old steel tape 2 is dropped on the bottom 4 in the pit, and one end 12a of the new steel tape 12 is attached. After being wound around the steel tape tension pulley 5, one end 12a of the new steel tape 12 is fixed to the car 9 by an operator at the bottom 4 of the pit.

After the end of step T10, as shown in step T11 of FIG.
2b is separated from the new steel tape sending reel 11, the other end 12b of the new steel tape 12 is fixed to the car 9 by the worker on the car 9, and the new steel tape sending reel 11 and the take-up reel mounting jig Remove 24 from car 9.

After the end of step T11, as shown in step T12 of FIG. 14, the worker in the machine room 6 returns from the idle-rotatable state of the floor selector driving device 7 and the driving pulley 8 to the original state. And the elevator can be used.

As described above, by performing the above-mentioned operation, the operation time for replacing the steel tape can be reduced to about 1/2 or less of the conventional case. Moreover, the replacement work is performed with the car 9 stopped, so that it is extremely safe.

Further, a reel mounting jig 24, a steel tape holding jig 25, a fixing jig 16, a new steel tape sending reel 11 and an old steel tape winding reel 10
Has a simple structure and is easy to manufacture. Also,
According to the connection structure 13 of the old and new steel tapes 12 and 2,
Even when the old steel tape 2 is wound on the old steel tape take-up reel 10, the old steel tape 2 moves smoothly without being caught by the drive pulley 8.

[0040]

As described above, according to the present invention, the car is stopped, and the old steel tape take-up reel attached to the guide rail is rotated so that the old steel tape take-up reel is attached to the old steel tape take-up reel. The new steel tape can be laid by winding the steel tape, so the new and old steel tape can be replaced safely and in a short time. was gotten.

[Brief description of the drawings]

FIG. 1 is a flowchart of a method of exchanging a steel tape according to an embodiment of the present invention.

FIG. 2 is a schematic structural explanatory view at the start of a steel tape replacement operation according to an embodiment of the present invention.

FIG. 3 is a schematic structural explanatory view of a steel tension pulley provided at the bottom of a pit and immediately after a new steel tape is wound around the work, showing one embodiment of the present invention.

FIG. 4 is an enlarged view of a connection structure portion of a new and old steel tape showing one embodiment of the present invention.

FIG. 5 is a perspective view showing an embodiment of the present invention in which an old steel tape take-up reel is attached to a guide rail.

FIG. 6 is a perspective view of a fixing jig showing one embodiment of the present invention.

FIG. 7 is a perspective view of a take-up reel mounting jig showing one embodiment of the present invention.

FIG. 8 is a front view of an old steel tape take-up reel showing one embodiment of the present invention.

FIG. 9 is a view on arrow P in FIG. 8;

FIG. 10 is a perspective view showing a state in which a take-up reel mounting jig showing one embodiment of the present invention is mounted on a crosshead.

FIG. 11 is an external perspective view of a steel tape holding jig showing one embodiment of the present invention.

FIG. 12 is an external perspective view of a clutch portion of the drive sprocket, showing one embodiment of the present invention.

FIG. 13 shows one embodiment of the present invention, and is a flowchart of a concrete replacement operation of new and old steel tapes.

FIG. 14 is a flowchart showing a specific operation of exchanging the tape following FIG. 13 according to the embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevator 2 Old steel tape 3 Hoistway 3A Guide rail 4 Pit 5 Steel tape tension pulley 6 Machine room 7 Floor selection machine drive 8 Drive pulley 9 Riding car 10 Old steel tape winding reel 11 New steel tape sending reel 12 New Steel tape 13 Connection structure 14 Bind wire 15 Vinyl tape 16 Fixing jig 17 Pedestal 18 Pole material 19 Support base 20 Shaft 21 Core material 22 Side plate 23 Crosshead 24 Take-up reel mounting jig 25 Steel tape holding jig 26 Flange 27 Drive sprocket 28 Clutch presser plate 29 Bolt S1 Drive pulley idling process S2 Reel installation process S3 New and old steel tape installation process S4 Steel tape installation process S5 New steel tape tension winding process S6 New steel tape solid Step S7 reel the Remove step S8 drive pulley return step

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Koji Makimoto 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo F-term in Hitachi Building Systems Co., Ltd. 3F002 CA03 3F303 BA01 CB08 3F305 BB09 DA15

Claims (1)

[Claims] 1. A driving pulley idling step for causing a driving pulley for a perforated steel tape in a floor selecting machine driving device installed in a machine room to be in an idling state, and before or after execution of the driving pulley idling step. The reel setting process to set the new steel tape sending reel on the car and the old steel tape winding reel on the guide rail on the car, and after executing this reel setting process, one end of the old steel tape Attaching the new steel tape to one end of the new steel tape wound on the new steel tape delivery reel, and attaching the other end of the old steel tape to the old steel tape take-up reel; After execution, with the car stopped, the old steel tape take-up reel A new steel tape laying step of laying a new steel tape while winding the teal tape, and after executing the new steel tape laying step, one end of the old steel tape and one end of the new steel tape are separated to separate the old steel tape into the old steel tape. The steel tape take-up reel is used to remove the old steel tape take-up reel from the guide rail, and one end of the new steel tape is wound around a steel tape tension pulley provided at the bottom of the pit. After performing the winding step and the steel tape tension pulley winding step, one end of the new steel tape is fixed to a car, and the other end of the new steel tape is separated from the new steel tape take-up reel, and the new steel tape is separated. Secure the other end of the tape to the car A steel tape fixing step, a reel removing step for removing the new steel tape sending reel before or after the execution of the new steel tape fixing step, and a drive pulley for the perforated steel tape from an idle-rotatable state to an original state. Method of exchanging perforated steel tape for floor selection machine of elevator, comprising a drive pulley return step of returning to the original state.