JP2865540B2 - Elevator car elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car lifting apparatus used for temporarily lifting a car while replacing or trimming a hanging rope of an elevator. About.

[0002]

2. Description of the Related Art In general, when the length of a hanging rope for hanging a car of an elevator exceeds an allowable amount, it is necessary to replace or trim the hanging rope to adjust the length.
It is necessary to suspend the car temporarily so that the tension due to the weight of the car does not act on the suspension rope.

FIG. 6 shows an example of a conventional method of hoisting a car. In the figure, reference numeral 1 denotes an elevator car, and 2 denotes a hoisting stretcher 3, one end of which is wound on the car 1. A hanging rope, which is connected to and suspends the car 1, is suspended at the other end of the suspending rope 2, and a counterweight which helps the car 1 move up and down smoothly, and a reference numeral 5 guides the lifting of the counterweight 4. Guide rail.

Reference numeral 6 denotes a chain for temporarily suspending the counterweight 4 on the guide rail 5 while the suspension rope 2 is replaced, 7 a rail chuck for temporarily fixing the upper end of the chain 6 to the guide rail 5, and 8 a suspension rope 2. Is a chain block for temporarily suspending the car 1 on another hanging rope 2 while the reference numeral 9 is a rope clamp for temporarily fixing the upper end of the chain block 8 to the hanging rope 2.

[0005] In such a configuration, a method of replacing the suspension rope 2 will be briefly described below. First, the position where the car 1 and the counterweight 4 are hung so that both are located at the same height is set near the middle floor, and the mounting position of the rail chuck 7 is confirmed. Fix to rail 5. Next, the position of the car frame 1a of the car 1 is set so that the work on the counterweight 4 side can be performed on the car 1. Next, the power of the elevator is cut off. Then, the counterweight 4 is hung by the chain 6 on the rail chuck 7, a rope clamp 9 is attached to one of the plurality of hanging ropes 2, and a chain block 8 is attached to the rope clamp 9.

Next, a slinging rope 10 is wound around the car frame 1a of the car 1, and the hook of the chain block 8 is hooked on the slinging rope 10. Then, by operating the chain block 8, the car 1 is hung on the hanging rope 2,
Replace the other hanging rope 2 with a new hanging rope. Next, the rope clamp 9 is replaced with a new hanging rope 2, the car 1 is replaced with a new hanging rope 2, and the hanging rope 2 on which the car 1 was originally suspended is replaced with a new one.

[0007]

The conventional elevator car is lifted by the above-described method, and the rope clamp 9 is directly attached to the hanging rope 2, so that the lifting rope 2 is not only damaged but also damaged. If the hanging rope 2 is damaged or the like, the hanging rope 2 may be broken by the rope clamp 9, and if the fixing of the rope clamp 9 is incomplete, the rope clamp 9 may slide down. .

In order to solve such a problem,
Although a method of hoisting a car by using a pulley 50 as shown in FIGS. 7 and 8 is also performed, this type of pulley 50 is generally large and very heavy, and is narrow such as an elevator shaft. By the way, there were problems such as being difficult to use and extremely poor workability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can easily lift a car when exchanging or trimming a hanging rope, and furthermore, the elevator car having a very simple structure. It is an object to provide a lifting device.

[0010]

According to a first aspect of the present invention, there is provided an elevator car lifting apparatus, wherein a rope socket is detachably attached to an end of a suspension rope, and the rope socket is detachably attached to the rope socket. A rope socket gripper for gripping the rope socket, a chain block detachably attached to a bracket for fixing the main rail, a shackle with a roller detachably attached to the car frame of the car, and a roller of the shackle with the roller A shackle with a roller, the ends of which are detachably connected to the rope socket gripper and the chain block, wherein the shackle with the roller is a U-shaped fitting formed in a U-shape; It is inserted between the legs of the bracket by inserting it into the pin hole formed in this leg A pin, a collar attached by inserting the shaft pin to the shaft pin is configured to include a roller rotatably mounted the slinging rope is wound on the collar.

According to a second aspect of the present invention, there is provided an elevator car lifting apparatus, comprising: a rope socket detachably attached to an end of a suspension rope; and the rope socket detachably attached to the rope socket. , A chain block detachably attached to a bracket for fixing a rail, a shackle with a roller attached to a beam of an elevator machine room, and a shackle with a roller wound around a roller of the shackle with both ends. A shackle with a roller, wherein the shackle with the roller is a U-shaped fitting formed in a U-shape, and the shackle is formed between a leg of the U-shaped fitting. A shaft pin that is inserted and attached to a pin hole formed in the leg, A collar attached by inserting the shaft pin down, is constituted by a roller rotatably mounted the slinging rope is wound on the collar.

[0012]

In the elevator car lifting apparatus according to the first aspect of the present invention, a chain block is attached to a bracket for fixing a guide rail of the car, and a rope socket is provided at an end of a hanging rope for hanging the car. A rope socket grip is attached to the rope socket, a shackle with a roller is attached to the car frame, and a sling rope is wound around the roller of the shackle with the roller, and both ends of the rope shackle are attached to the rope socket grip. Each is connected to a chain block. The car is lifted by operating the chain block.

In the elevator car lifting apparatus according to the second aspect of the present invention, a chain block is attached to a bracket for fixing a guide rail, and a rope socket is attached to an end of a hanging rope for hanging the car. A rope socket gripper is attached to the rope socket, a shackle with a roller is attached to a machine beam installed on the floor of the machine room, and a sling rope is wrapped around the roller of the shackle with the roller. And both ends thereof are connected to the rope socket gripper and the chain block. The car is lifted by operating the chain block.

[0014]

EXAMPLES Reference Example 1 FIG. FIGS. 1 and 2 show a reference example of the present invention. In the drawings, reference numeral 11 denotes a U-shaped fitting, which is attached to a building beam 13 or the like by a slinging rope 12,
4 is a pin hole 11 formed between the legs 11a, 11a of the U-shaped fitting 11 at the tip of the legs 11a, 11a.
b, a shaft pin inserted horizontally into 11b and mounted horizontally,
A collar 15 is formed in a thin cylindrical shape, and a collar is attached to the shaft pin 14 by inserting the shaft pin 14. A collar 16 is rotatably attached to the collar 15, and a hanging rope 17 for lifting a load or the like is provided. The roller to be wound around and the reference numeral 18 are inserted into a pin hole 14 a formed at the tip of the shaft pin 14, and the shaft pin 14 is inserted into the pin hole 11.
It is a retaining pin that is fixed so that it does not come off from b.

A ring 14b into which a finger can be inserted is formed at the base end of the shaft pin 14. The finger can be inserted into the ring 14b so that the shaft pin 14 can be easily pulled out from the pin hole 11b.

In such a configuration, an example of a method of using the shackle with a roller will be briefly described. First,
The roller-mounted shackle is assembled on the ground, and the shackle is hung on a beam 13 of a building by a slinging rope 12. Next, a hanging rope 17 is wound around the roller 16,
One end is connected to the load to be lifted, and the other end is wound up by a manual or powered winch.

Embodiment 1 FIG. 3 and 4 show an embodiment of the elevator car lifting device according to claim 1 of the present invention,
In the figure, reference numeral 19 denotes an elevator car, 20
Is a car frame of the car 19, 21 is a guide rail for guiding the elevator 19 up and down, 22 is a bracket for fixing the guide rail 21 to the inner wall 23 of the hoistway, and 24 is a car frame 20 via a connecting rod 25. , A hanging rope for hanging the car 19 up and down freely, a rope socket 26 detachably attached to a connecting portion between the hanging rope 24 and the connecting rod 25, and a detachable rope 27 attached to the rope socket 26. This rope socket 2
6, a rope socket gripper for gripping 6, a chain block 28 attached to the bracket 22 via a slinging rope 29, and a shackle 30 with a roller attached to the car frame 20 via the slinging rope 29.

The shackle 30 with a roller is exactly the same as the shackle with a roller of Reference Example 1, and the U-shaped bracket 11
And a shaft pin 14, a collar 15, a roller 16, and a retaining pin 18 (see FIGS. 1 and 2). Reference numeral 31 is wound around the roller 16 of the roller-equipped shackle 30, and both ends of the shackle 30
7 and the hook 28 of the chain block 28
a is a slinging rope that is detachably connected to a.

Next, a brief description will be given of a method of lifting a car of an elevator using this apparatus in such a configuration. First, a chain block 28 is attached to the bracket 22 via a slinging rope 29, a rope socket holding tool 27 is attached to the rope socket 26, and a shackle 30 with a roller is attached to the car frame 20 via the slinging rope 29.

Next, the slinging rope 31 is wound around the roller 16 of the shackle 30 with a roller, one end of which is connected to the receiving portion 27a of the rope socket holder 27, and the other end is connected to the chain block 28. By operating the operation chain 28a of the chain block 28, the car 19
Hoist. The counterweight is lifted by a conventional method.

Embodiment 2 FIG. FIG. 5 shows an embodiment of the elevator car lifting apparatus according to the second aspect of the present invention, in which the same reference numerals are given to the same parts as in the first embodiment, and the description thereof will be omitted. I do. Reference numeral 32 denotes a machine beam installed on the floor of the elevator machine room and supports a hoisting machine 33 and the like installed in the machine room. Reference numeral 34 denotes a machine beam suspended from the machine beam 32 and the upper end of the hanging rope 24 The connecting rod connected to the beam 32 and the reference numeral 35 are interposed between the connecting rod 34 and the suspending rope 24, and the length of the suspending rope 24 is adjusted by appropriately replacing the connecting rod 34 with one having a different length. It is an adjustment rope. A rope socket 25 is attached to a connection portion between the suspension rope 24 and the adjustment rope 35, and a rope socket grip 26 is attached to the rope socket 25.

A chain block 28 is mounted on the bracket 22 via a slinging rope 29, a shackle 30 with a roller is mounted on the car frame 20 via the slinging rope 29, and a slinging rope is mounted on the roller 16 of the shackle 30 with a roller. 31 are wound around the chain block 28 and the rope socket gripper 26 at both ends.
Respectively.

Next, a brief description will be given of a method of lifting an elevator car by using this apparatus in such a configuration. First, the chain block 28 is attached to the bracket 22 via the slinging rope 29, the rope socket holding tool 27 is attached to the rope socket 26, and the shackle 30 with a roller is attached to the machine base beam 32 via the slinging rope 29. .

Next, the slinging rope 31 is wound around the roller 16 of the shackle 30 with a roller, one end of which is connected to the receiving portion 27a of the rope socket holder 27, and the other end is connected to the chain block 28. By operating the operation chain 28a of the chain block 28, the car 19
Hoist. The counterweight is lifted by a conventional method.

[0025]

As described above, according to the elevator car hoisting device of the first and second aspects of the present invention, one end of the ball hanging rope for hoisting the car has the one end hanging the car. Instead of being directly connected to a hanging rope, it is connected to a rope socket gripper, and this rope socket gripper is connected to the hanging rope via a rope socket attached to the end of the hanging rope. One end of the slinging rope can be securely connected to the hanging rope, so that when the car is lifted, one end of the slinging rope slides down, damages the hanging rope, or cuts the hanging rope. This has the effect of preventing unexpected situations.

[Brief description of the drawings]

FIG. 1 is a front view of a shackle with a roller according to a reference example of the present invention.

FIG. 2 is a perspective view of a shackle with a roller shown in FIG. 1;

FIG. 3 is a front view showing an embodiment of the elevator car lifting device according to the first aspect of the present invention.

FIG. 4 is a front view showing the entire elevator car lifting apparatus shown in FIG. 3;

FIG. 5 is a front view showing an embodiment of the elevator car lifting device according to the second aspect of the present invention.

FIG. 6 is a front view showing an example of a conventional elevator car lifting method.

FIG. 7 is a front view showing an example of a conventional pulley.

FIG. 8 is a side view of the pulley shown in FIG.

[Explanation of symbols]

11 U-shaped bracket, 11a leg, 11b pin hole, 1
4-axis pin, 15 collars, 16 rollers, 17 suspension ropes, 19 cars, 21 guide rails, 22
Bracket, 24 hanging rope, 26 rope socket, 27 rope socket gripper, 30 shackle with roller, 31 sling rope, 32 machine beam (beam).

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B66D 3/04 B66D 3/04 J

Claims (2)

(57) [Claims] 1. A rope socket detachably attached to an end of a hanging rope, a rope socket gripper detachably attached to the rope socket and gripping the rope socket, and a bracket detachably attached to a bracket for fixing a guide rail. A shackle with a roller detachably attached to the car, and a shackle with a roller, which is wound around the roller of the shackle with the roller, and both ends of which are detachably connected to the rope socket gripper and the chain block, respectively. A shackle with a roller, wherein the shackle with the roller is a U-shaped fitting formed in a U-shape, and a shaft pin inserted between and attached to a pin hole formed in the leg between the legs of the U-shaped fitting, A collar that can be attached by inserting this shaft pin through this shaft pin and this collar And a roller on which the slinging rope is wound so as to be rotatable around the car. 2. A rope socket detachably attached to an end of a hanging rope, a rope socket gripper detachably attached to the rope socket, and a rope socket gripper for gripping the rope socket, and detachably attached to a bracket for fixing a rail. A chain block to be attached, a shackle with a roller detachably attached to a beam of an elevator machine room, and a shackle wound around the roller of the roller and both ends detachably connected to the rope socket gripper and the chain block, respectively. A shackle with a roller, wherein the shackle with the roller is a U-shaped fitting formed in a U-shape, and a shaft inserted between the legs of the U-shaped fitting and inserted into a pin hole formed in the leg. A pin and a collar that can be attached by inserting the shaft pin through the shaft pin, And a roller rotatably attached to the collar and around which the slinging rope is wound.