JP3059899B2 - Elevator lifting equipment - 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 for lifting a car and a counterweight when, for example, performing a main rope replacement operation, a main rope trimming operation, a hanging vehicle replacement operation, or a cab room replacement operation. And a lifting device.

[0002]

2. Description of the Related Art FIG. 9 is a configuration diagram showing an example of a lifting operation in a conventional elevator. In the figure, 1 is a hoistway, 2 is a pit located at the bottom of the hoistway 1, 3 is a machine room provided at the upper part of the hoistway 1, 4 is a sheave of a hoist provided in the machine room 3, Reference numeral 5 denotes a deflecting vehicle similarly provided in the machine room 3.

[0003] Reference numeral 6 denotes a main rope wound around the sheave 4 and the deflecting wheel 5, reference numeral 7 denotes a basket suspended from one end of the main rope 6, and reference numeral 8 denotes a fishing suspended from the other end of the main rope 6. A weight 9, a rope with a stand fixed in the machine room 3, a chain block 10 as a pulling jig provided between the rope 9 with the stand and the car 7, and 11 installed in the pit 2 for fishing It is a timber supporting the weight 8.

Next, a method of lifting the car 7 will be described. With the car 7 stopped at the landing on the top floor, a lifting jig such as a chain block 10 is suspended from the machine room 3 via the rope 9 with a base, and the lower end of the chain block 10 is hung on the car 7. And raise the basket 7. At this time, the counterweight 8 is fixed by the square bar 11 erected on the pit 2.

FIG. 10 shows, for example, Japanese Utility Model Application Laid-Open No. 2-69968.
FIG. 11 is a front view showing a conventional elevator lifting device shown in Japanese Patent Publication No. 2 and FIG. 11 is a partially enlarged perspective view of FIG. In the figure, reference numeral 12 denotes a pair of guide rails having a T-shaped cross section, which are installed in the hoistway 1 and guide the lifting and lowering of the counterweight 8, and a plurality of guide rails 12 are joined in the length direction. Reference numeral 13 denotes a perforated plate fixed to a joint portion of each guide rail 12.

Reference numeral 14 denotes a suspension plate that is fixed to the guide rail 12 in contact with the upper surface of the eye plate 13, 15 denotes a rail clip that fixes the suspension plate 14 to the guide rail 12, and 16 denotes a rotation plate that is rotatably provided on the suspension plate 14. Shackle 17 is a rope with a base connected to a shackle 16, and 18 is a rope with a base connected via a chain block 10.
7 is a platform rope connected to the upper part of the counterweight 8 and connected to the counterweight 7.

[0007] As described above, the suspension plate 14 is fixed on the eye panel 13, and the chain block 10 and the rope 1 with the base are fixed.
A method of lifting the counterweight 8 (or the car 7) via the members 7 and 18 is also conventionally known.

[0008]

Among the above-mentioned conventional elevator hoisting apparatuses, the one shown in FIG. 9 has a high workability because the position of the car 7 and the position of the counterweight 8 are different. To keep them low and in the same position,
A long square bar 11 is required, which may hinder transportation and carrying in. Further, since the required length of the square bar 11 varies from site to site, it is necessary to prepare various types of square bars 11. There was a problem.

On the other hand, in FIGS. 10 and 11, when the lengths of the ropes 17 and 18 are short, the load applied to the guide rails 12 is different from that of the pair of guide rails 12 facing each other. The guide rail 12
However, there is a problem that the user may bend.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has the object of improving workability and preventing deformation of guide rails. The aim is to obtain a device.

[0011]

SUMMARY OF THE INVENTION The elevator hoisting device according to the invention of claim 1 is provided on a pair of eye plate fixed to a joint portion of the guide rails facing each other, moth
Combine multiple divided pieces around the
A pair of supports that have been made, one of the guide rails escape
The first notch for removing, the other guide rail and the main
A second notch for allowing the loop to escape, and a suspension beam provided between a pair of supports, and a cage and a counterweight guided by a guide rail, and one of the counterweight and the suspension beam. Walls provided on both sides of the second notch, the pulling jig being provided .
The part is provided with a plurality of pairs of holes facing each other,
Selectively prevent one pair of these multiple holes from coming off
Is inserted .

[0012]

[0013]

According to the first aspect of the present invention, a car or a counterweight is lifted by lifting a car or a counterweight against a suspension beam erected via a support between opposing eye plates. It is possible to perform the operation at the same height, and it is possible to prevent a load in the inward direction from being applied to the guide rail and prevent the guide rail from being deformed.

[0014]

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Embodiment 1 FIG. FIG. 1 is a front view showing an elevator lifting device according to a first embodiment of the present invention, and FIG. 2 is a perspective view of a main part of FIG. 1. The same or corresponding parts as in FIGS. , The description of which is omitted.

In FIG. 1, reference numeral 21 denotes a pair of support stands which are detachably mounted on the eye plate 13 of the guide rail 12 so as to face each other. As shown in FIG.
It is configured by combining two divided pieces 21a and 21b. In addition, a plurality of holes 21 are formed in each of the divided pieces 21a and 21b.
c are provided, and the divided pieces 21a and 21b are integrated by a bolt / nut 22 using these holes 21c. FIG. 4 is a side view showing a mounting state of the support 21.

Reference numeral 23 denotes a suspension beam provided between a pair of support bases 21. As shown in FIGS. 5 to 7, the suspension beam 23 has a first beam for allowing one of the guide rails 12 to escape. A notch 23a, a second guide rail 12 and a second notch 23b for releasing the main rope 6 are provided. Further, a plurality of pairs (four pairs in the figure) of holes 23c facing each other are provided in the walls on both sides of the second notch 23b. 24 is a pair of holes 2 of the plurality of pairs of holes 23c.
3c is a retaining bolt inserted through 3c.

Further, between the suspension beam 23 and the counterweight 8, the ropes 17 and 18 and the chain block 1
0 is linked.

Next, the operation will be described. First, a support 21 is arranged above the eye plate 13 fixed to the guide rail 12 so as to sandwich the guide rail 12, and is fixed by bolts and nuts 22. Both guide rails 12
After the support 21 is fixed to the support 21, a suspension beam 23 is installed between the supports 21. And the suspension beam 23
Hole that matches the guide rail spacing so that
Insert the retaining bolt 24 into 3c and fix it with a nut.

Thereafter, a hanging rope 17 is hung on the portion of the suspended suspension beam 23 without the cutouts 23a and 23b, and a hanging rope 18 is hung on this via the chain block 10, and a counterweight is attached to the end thereof. Multiply by eight. In this state, the counterweight 8 is lifted by operating the chain block 10. Note that the car 7 (FIG. 9) can be lifted in a similar manner.

In such a lifting device, the suspension beam 23
The guide rail 1
2 is prevented from deforming inward. If both the car 7 and the counterweight 8 are lifted in the middle of the hoistway 1 (FIG. 9), both work at the same height, and workability is improved.

Further, since the ropes 17 and 18 are hung on one line, there is no need to consider the suspension balance as when two or three ropes are hung. Furthermore, since the support 21 is firmly fixed to the guide rails 12, there is no fear of falling off and the reliability is improved. Furthermore, since the notches 23a and 23b are provided in the suspension beam 23, the suspension beam 23 can be used on the entire hoistway that matches the depth.

The structure of the support 21 is not limited to that of the first embodiment, but may be, for example, a structure in which the eye plate 13 and the support 21 are integrated. Further, the shape of the suspension beam and the method of erection are not limited to those in the first embodiment.

Reference example . Next, FIG. 8 is a perspective view showing an elevator lifting device according to a reference example of the present invention. In the figure, reference numeral 31 denotes a plate fixed to a joint portion of the guide rail 12,
The eye plate 31 is integrally formed with a support portion 31a which is wider than the guide rail 12 and extends in a direction perpendicular (horizontal direction) from a portion fixed to the guide rail 12. Reference numeral 32 denotes two suspension beams having a U-shaped cross section, which are fixed on the support portion 31a on both sides of the guide rail 12 by bolts 33.

Reference numeral 34 denotes a suspension plate provided on the two suspension beams 32, and reference numeral 35 denotes a clip provided below the suspension plate 34.
Or, the ropes 17, 18 with the base and the chain block 10 are connected between the counterweight 8.

In such a lifting device, the suspension beam 32
The guide rail 1
2 is prevented from deforming inward. Further, when both the car 7 and the counterweight 8 are lifted in the middle of the hoistway 1, the work is performed at the same height, and the workability is improved. Further, since the supporting portion 31a is provided on the eye panel 31, installation is easy and workability is further improved.

[0027]

[0028]

As described above, the elevator hoisting device according to the first aspect of the present invention has a hanging beam erected between a pair of support bases provided on the eye panel, and a car or a cage is provided for the hanging beam. Since the counterweight is lifted, the lifting operation of the car and the counterweight can be performed at the same height, thereby improving the workability, and also allowing the guide rail to be inwardly loaded. This prevents the guide rail from being deformed and prevents deformation of the guide rail. In addition, the support base has a plurality of
It is composed of a combination of split pieces.
Easy to attach. In addition, the first and second suspended beams
The two notches are provided, and the walls on both sides of the second notch
Are provided with a plurality of pairs of holes facing each other.
Bolts for retaining are selectively inserted into one of the pair of holes.
Since it is inserted, it is easy to change the distance between the pair of guide rails.
It can be easily handled.

[0029]

[Brief description of the drawings]

FIG. 1 is a front view illustrating an elevator lifting device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of FIG.

FIG. 3 is an exploded plan view showing the support base of FIG. 1;

FIG. 4 is a side view showing a mounting state of the support table of FIG. 3;

FIG. 5 is a plan view showing the suspension beam of FIG. 1;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a front view of FIG. 1;

FIG. 8 is a perspective view showing an elevator lifting device according to a reference example of the present invention.

FIG. 9 is a configuration diagram showing an example of a conventional elevator lifting device.

FIG. 10 is a front view showing another example of a conventional elevator lifting device.

FIG. 11 is an enlarged perspective view showing a part of FIG. 10;

[Explanation of symbols]

7 basket, 8 counterweight, 10 chain block (pull-up jig), 12 guide rails, 13, 31 mesh board, 2
1 Support, 23, 32 Hanging beam, 31a support.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-229766 (JP, A) JP-A-4-140291 (JP, A) JP-A-5-186159 (JP, A) 69682 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66B ^7/ 00-7/12

Claims (1)

(57) [Claims] 1. A provided on the opposing pair fixed to a joint portion of the guide rail batten, the guide rail
Is composed of multiple divided pieces that surround the
A pair of supports Ru Tei, a first notch for releasing the one guide rail, the other
Notch for escape of guide rail and main rope
And a suspension beam erected between the pair of support tables, and a lifting jig provided between one of the car and the counterweight guided by the guide rail and the suspension beam. And the walls on both sides of the second notch are paired with each other.
And a plurality of pairs of holes facing each other.
Bolts are selectively inserted into a pair of holes.
Elevator hoisting device which is characterized in that.