JP3396534B2 - Elevator guide rail fixing device - 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 guide rail fixing device.

[0002]

2. Description of the Related Art Generally, an elevator has a mechanical structure shown in FIG. That is, hoistway 1 of the elevator installation building
A guide rail 2 for a car and a guide rail 3 for a counterweight are vertically installed on each of both side walls of the car, and a car 5 that is moved up and down by a hoisting rope 4 is vertically arranged between the guide rails 2 on both sides. Has been done. A counterweight 6 is attached to the opposite end of the hoisting rope 4, and the counterweight 6 moves up and down with the car 5 in a fishing bottle manner. Guide devices 7 are provided on both sides of each of the car 5 and the counterweight 6, and the car 5 and the counterweight are lifted by moving the guide devices 7 along the respective guide rails 2 and 3. It is designed to stabilize the lifting and lowering of 6.

In the elevator machine room 8, an elevator drive device 9 is fixed on a machine beam 10, and the drive device 9 drives the sheave 11 to rotate forward and backward to rotate the sheave 1.
The hoisting rope 4 wound around 1 is paid out to the car 5 side or to the counterweight 6 side so that the car 5 and the counterweight 6 are moved up and down like a fishing bottle. Reference numeral 12 is a sheave for bending the hoisting rope 4.

[0004] In such an elevator apparatus, conventionally, an elevator guide rail fixing apparatus for fixing the elevator guide rails 2 and 3 to the side wall has a structure shown in FIGS. 10 to 12. Guide rails 2 and 3
As shown in FIG. 10, a required number of rail divided bodies 13 are vertically connected in series, and two rows are laid from the top to the bottom of the hoistway 1 to the left and right. The method of fixing each rail divided body 13 is as follows. As shown in FIGS. 11 and 12, the anchor bolt 15 is embedded in the hoistway wall 14, and the anchor bolt 15 has a nut 16
The base fixing bracket 17 is fixed to the hoistway wall 14 by tightening.

Another connecting bracket 18 and a guide rail mounting bracket 19 are integrally welded to the base fixing bracket 17, and the other brackets 18, 19 are fixed by anchor bolts 15 to the hoistway wall 14 of the bracket 17. Is also fixed in a fixed position.

The guide rail divided body 13 is fixed to the guide rail mounting bracket 19 by rail clips 20 on both sides thereof, and the rail clips 20 are fixed to the guide rail mounting bracket 19 by bolts 21 and nuts 22. Each of the guide rail divided bodies 13 is fixed.

[0007]

However, such a conventional elevator guide rail fixing device has the following problems. That is, the car 5 and the counterweight 6 are guided by the guide rails 2 and 3 to ascend and descend, but if the guide rails 2 and 3 are not laid vertically as much as possible, the car 5 sways due to a slight bend or twist. Reduce the ride comfort. Therefore, it is necessary to perform the centering work of the guide rail during the installation work of the elevator. As shown in FIGS. 11 and 12, the centering work is performed in the left-right X direction by the elongated hole 23 formed in the bracket 17, and the centering in the front-rear Y direction and the twist R direction is performed by the thickness. Separate the two-sided shims 24 and the one-sided shims 25 from the guide rail division body 13 and the guide rail mounting bracket 1.
This is done by sandwiching the required number of sheets with 9

In such centering work, after the centering work in the left and right X direction, the anchor bolts 15 are fully tightened with the nuts 16 and then the required number of both-eye shims 24 and one-eye shims 25 are formed on the guide rail divided body 13. It is inserted between the guide rail mounting bracket 19 and the bolt 21 and nut 22.
The guide rail divided body 13 is fixed to the guide rail mounting bracket 19 to perform centering in the front-rear Y direction and the twist R direction.

In this centering work, the center of the guide rail divided body 13 in the front-rear Y direction and the left-right X direction changes depending on how tight the bolts 21 and the nuts 22 are tightened. Then, the guide rail divided body 13 is fixed to the guide rail mounting bracket 19 and it is confirmed whether or not the core is out. If the core is not out, the nut 22 is loosened again to increase or decrease the number of the shims 24 and 25 and the nut 22 again. It is necessary to perform a troublesome work such as fully tightening and checking the lead-out condition, and this must be done one by one for all the rail brackets in the elevator hoistway.

For this reason, the work of centering the guide rail requires a great deal of attention, a lot of time, and labor, and there is a problem in that work is required at a high place and is dangerous. further,
Several types of shims with different thicknesses are prepared to improve the accuracy of centering, but it is not possible to specify because the number of shims used differs depending on the work site, so always prepare a large number of shims for each site. There was a problem that it was necessary to put in and there was much waste.

The present invention has been made in view of the above-mentioned problems of the prior art. Centering of a guide rail is performed without using a shim and with a bracket permanently fixed to a side wall in an elevator hoistway. It is an object of the present invention to provide a fixing device for an elevator guide rail, which is capable of performing the centering work, can be easily performed with a small labor, and can reduce waste.

[0012]

According to a first aspect of the present invention, there is provided an elevator guide rail fixing device which is arranged so as to face a bracket fixed to a side wall of a hoistway and which is fixed to the guide rail. A plate, a plurality of bolts whose neck portions are inserted into the rail mounting plate on both sides of the guide rail, and screw parts of the tip of which are screwed into the bracket, and heads of the bolts and the rail mounting plate. through mounted in a position facing, the rotatable and longitudinally neck portion wherein each of the bolts is of also a plurality of retaining ring for supporting so that it can not slide.

According to a second aspect of the present invention, there is provided an elevator guide rail fixing device, wherein a rail mounting plate for fixing the guide rail is provided so as to face a bracket fixed to a side wall of the hoistway, and the guide rail. Heads are fixed to the rail mounting plate on both sides of the bracket, and a plurality of pins each having a tip portion press-fitted through a hole formed in the bracket are provided.

According to a third aspect of the present invention, there is provided an elevator guide rail fixing device, which is arranged so as to face a bracket fixed to a side wall of a hoistway, the rail mounting plate fixing the guide rail, and the guide rail. A plurality of bolts whose neck portions are inserted into the rail mounting plate on both sides of the bracket and screwed at the tip of the bracket into the bracket, and between the facing surfaces of the bracket and the rail mounting plate. And an elastic body inserted to hold the gap.

[0015]

According to the elevator guide rail fixing device of the first aspect of the invention, when centering the guide rail in the front-rear direction and in the twisting direction, the tips of the bolts inserted into the rail mounting plates on both sides of the guide rail are bracketed. The centering in the front-rear direction is performed by increasing or decreasing the screwing amount by the same amount, and the centering in the twisting direction is performed by making the right and left different amounts. After centering, the bolts are welded and fixed to the bracket and rail mounting plate. In this way, centering work in the front-rear direction and the twisting direction of the guide rail is performed only by increasing or decreasing the screw-in amount of the bolt without using a shim.

In the elevator guide rail fixing device according to the second aspect of the present invention, when centering the guide rail in the front-rear direction and the twisting direction, the heads of the pins fixed to the rail mounting plates are struck on both sides of the guide rail. This allows the front and rear to be centered by increasing or decreasing the amount of press-fitting of the tip of the pin that is press-fitted into the hole formed in the bracket by the same amount on the left and right, and the center of the twisting direction by making the required amount different on the left and right. Send out. When the centering is completed, the pins are welded and fixed to the bracket and the rail mounting plate. In this way, centering work in the front-rear direction and the twisting direction of the guide rail is performed only by increasing / decreasing the press-fitting amount of the pin without using a shim.

In the elevator guide rail fixing device according to the third aspect of the present invention, when centering the guide rail in the front-rear direction and the twisting direction, the tips of the bolts inserted into the rail mounting plates on both sides of the guide rail are bracketed. The bolts are screwed together and the amount of screwing of the bolt with respect to the bracket is increased / decreased by the same amount to perform centering in the front-rear direction, and the required amount of screwing is changed between left and right to perform centering in the twisting direction. In this case, the elastic body inserted between the bracket and the rail mounting plate holds the rail mounting plate at a fixed position. After centering, the bolts are welded and fixed to the bracket and rail mounting plate. Thus, centering work in the front-rear direction and the twisting direction of the guide rail is performed only by increasing or decreasing the screwing amount of the bolt and the nut without using a shim.

[0018]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2 show an embodiment of the invention of claim 1. The elevator guide rail fixing device of this embodiment is the elevator hoistway 1 shown in FIGS. 9 and 10.
The guide rail divided body 13 of each of the guide rails 2 and 3 is fixed to the side wall 14 inside the side wall.
The anchor bolt 15 is embedded in the base fixing bracket 17, and the base fixing bracket 17 is adjusted by using the elongated hole 23 to adjust the position in the left-right X direction, and then fixed by the nut 16. The base fixing bracket 17 includes a connecting bracket 1
8 and the rail mounting bracket 31 are fixed by welding to form an integral structure.

On the other hand, the guide rail divided body 13 is placed on the rail mounting plate 32, and is fixed to the rail mounting plate 32 by the rail clip 20 and a clip stop bolt 33 for fixing the rail clip 20 to the rail mounting plate 32.

A non-threaded bolt insertion hole 34 is formed in each of the four corners of the rail mounting plate 32, and a neck portion 36 of a fixing bolt 35 is inserted therein, and a head portion 37 of the fixing bolt 35. Each of the fixing bolts 35 can be rotated by the washer 38 and the retaining ring 39 attached to the neck portion 36, but the positional relationship in the left-right X direction and the front-rear Y direction with respect to the rail mounting plate 32 cannot be changed. Has been

The tip screw portion 4 of each of the fixing bolts 35
0 is screwed into the screw holes 41 formed at each of the four corners of the rail mounting bracket 31 to keep the rail mounting bracket 31 and the rail mounting plate 32 in a substantially parallel positional relationship.

When the guide rail divisions 13 are fixed to the hoistway side wall 14 by the elevator guide rail fixing device having the above-described structure, the centering operation of the guide rail divisions 13 is performed by the following procedure. . First, for the centering work in the left and right X direction, loosen the nut 16 and
Is used to move the base fixing bracket 17 to the right and left by a required amount, and after the required amount is moved, the nut 16 is finally tightened to the anchor bolt 15.

Next, centering work in the front-rear Y direction and twist R direction of the guide rail divided body 13 is performed. The centering work in the front-rear Y direction uses the same fixing bolts 35 at the four corners of the rail mounting plate 32. The amount of screwing the tip screw portion 40 into the rail mounting bracket 31 is increased or decreased by rotating the tip screw portion 40 to adjust the distance between the rail mounting plate 32 and the rail mounting bracket 31.

Further, in the centering work in the direction of the twist R, by rotating the bolts at the required positions among the fixing bolts 35 at the four corners individually by an appropriate amount, the screwing amount of the tip screw portion 40 into the rail mounting bracket 31 is increased. Is increased or decreased by a necessary amount, and the intervals of the four corners of the rail mounting plate 32 with respect to the rail mounting bracket 31 are individually adjusted.

In this way, in the elevator guide rail fixing device of this embodiment, the centering operation can be performed with the guide rail divided body 13 fixed to the rail mounting plate 32. After the centering work, the head portion 37 of the fixing bolt 35 and the tip screw portion 40 are welded and fixed to the rail mounting plate 32 and the rail mounting bracket 31 so that the loosening does not occur. In the figure, 42 indicates a welded portion.

Next, an embodiment of the invention of claim 2 will be described with reference to FIGS. 3 and 4. In the elevator guide rail fixing device of this embodiment, the anchor bolt 15 is embedded in the side wall 14, the base fixing bracket 17 uses the elongated hole 23 to adjust the position in the left and right X direction, and then the nut 16 is provided. Is fixed by. A connecting bracket 18 and a rail mounting bracket 43 are fixed to the base fixing bracket 17 by welding to form an integral structure.

On the other hand, the guide rail divided body 13 is placed on the rail mounting plate 44, and is fixed to the rail mounting plate 44 by the rail clip 20 and a clip stop bolt 33 for fixing the rail clip 20 to the rail mounting plate 44.

Pin insertion holes 45 are formed at each of the four corners of the rail mounting plate 44, and one end of a fixing pin 46 having elasticity that expands in the radial direction is formed in the pin insertion hole 4.
5 are pressed into each. The tip end of each of the fixing pins 46 is press-fitted into the pin through holes 47 formed at each of the four corners of the rail mounting bracket 43, so that the rail mounting bracket 43 and the rail mounting plate 44 have a substantially parallel positional relationship. I keep it.

When performing the centering operation of each guide rail divided body 13 in a state where each guide rail divided body 13 is fixed to the hoistway side wall 14 by the elevator guide rail fixing device having the above-described structure, the following procedure is performed. . First, for the centering work in the left and right X direction, loosen the nut 16 and
Is used to move the base fixing bracket 17 to the right and left by a required amount, and after the required amount is moved, the nut 16 is finally tightened to the anchor bolt 15.

Next, centering work in the front-rear Y direction and twist R direction of the guide rail divided body 13 is performed. The centering work in the front-rear Y direction is performed by the heads of the fixing pins 46 at the four corners of the rail mounting plate 44. This is performed by finely adjusting the press-fitting amount of the tip portion into the rail mounting bracket 43 by hammering the same amount with a hammer or the like, and adjusting the distance between the rail mounting plate 44 and the rail mounting bracket 43.

Further, in the centering work in the twist R direction, the pin at the required position among the fixing pins 46 at the four corners is individually driven by an appropriate amount to slightly press fit the rail mounting bracket 43 at the tip end. Adjust and rail mounting bracket 4
It is carried out by individually adjusting the intervals of the four corners of the rail mounting plate 44 with respect to 3.

Thus, also in the elevator guide rail fixing device of this embodiment, the centering operation can be performed with the guide rail divided body 13 fixed to the rail mounting plate 44. After the centering work, the head and the tip of the fixing pin 46 are welded and fixed to the rail mounting plate 44 and the rail mounting bracket 43 so as to prevent loosening. In the figure, 62 indicates a welded portion.

Next, an embodiment of the invention of claim 3 will be described with reference to FIGS. 5 and 6. In the elevator guide rail fixing device of this embodiment, the anchor bolt 15 is embedded in the side wall 14, the base fixing bracket 17 uses the elongated hole 23 to adjust the position in the left and right X direction, and then the nut 16 is provided. Is fixed by. A connecting bracket 18 and a rail mounting bracket 48 are fixed to the base fixing bracket 17 by welding to form an integral structure.

On the other hand, the guide rail divided body 13 is placed on the rail mounting plate 49, and is fixed to the rail mounting plate 49 by the rail clip 20 and a clip stop bolt 33 for fixing the rail clip 20 to the rail mounting plate 49.

A non-threaded bolt insertion hole 50 is formed at each of the four corners of the rail mounting plate 49, and the neck portion 52 of the fixing bolt 51 is inserted therein, and the tip screw portion 53 of the fixing bolt 51 is inserted. Are threaded holes 54 formed at the four corners of the rail mounting bracket 48.
It is inserted so that it fits snugly in, and is further screwed into the nut 55. A compression spring 56 is inserted between the rail mounting bracket 48 and the rail mounting plate 49 in such a manner that it is mounted on the fixing bolt 51, and the expansion elastic force of the compression spring 56 causes the rail mounting bracket 48 to move to the nut 55. By pressing and simultaneously pressing the rail mounting plate 49 against the head portion 57 of the fixing bolt 51, the two are fixed while maintaining a predetermined space therebetween. Thus, the fixing bolt 5
1 Each can rotate, but left and right X relative to the rail mounting plate 48
The positional relationship between the direction and the front-back Y direction cannot be changed. In the figure, 58, 59, 6
0 is a flat washer.

When the guide rail divisions 13 are fixed to the hoistway side wall 14 by the elevator guide rail fixing device having the above-mentioned structure, the guide rail divisions 13 are centered by the following procedure. . First, for the centering work in the left and right X direction, loosen the nut 16 and
Is used to move the base fixing bracket 17 to the right and left by a required amount, and after the required amount is moved, the nut 16 is finally tightened to the anchor bolt 15.

Next, centering work in the front-rear Y direction and twist R direction of the guide rail divided body 13 is performed. The centering work in the front-rear Y direction uses the same fixing bolts 51 at the four corners of the rail mounting plate 49. This is done by rotating the nuts 55 by the same amount or by rotating each of the nuts 55 by the same amount to increase or decrease the screwing amount between them and adjust the distance between them.

The centering work in the twist R direction is performed by individually rotating the bolts at the necessary positions among the fixing bolts 51 at the four corners by an appropriate amount, or by rotating the nut by an appropriate amount. This is performed by increasing or decreasing the screwing amount by a necessary amount and individually adjusting the intervals of the four corners of the rail mounting plate 49 with respect to the rail mounting bracket 48.

Thus, also in the elevator guide rail fixing device of this embodiment, the centering operation can be performed with the guide rail divided body 13 fixed to the rail mounting plate 49. After this centering operation, between the head portion 57 of the fixing bolt 51 and the rail mounting plate 49, between the tip screw portion 53 and the nut 55 of the fixing bolt 51, and the nut 55 so that loosening does not occur. The rail mounting bracket 48 and the rail mounting bracket 48 are welded and fixed together. In the figure, 63 indicates a welded portion.

Next, another embodiment of the invention of claim 3 will be described with reference to FIGS. 7 and 8. The feature of this embodiment resides in that a square-shaped spring 61 as shown in FIG. 8 is used as an elastic body for holding the space between the rail mounting bracket 48 and the rail mounting plate 49. Therefore, the other components are the same as those in the embodiment shown in FIGS. 5 and 6, and are designated by the same reference numerals. The shape and configuration of the elastic body in the third aspect of the invention is not limited to the spring 56 or the spring 61, and in order to always keep the distance between the rail mounting bracket 48 and the rail mounting plate 49 constant, the elastic body and the spring mounting plate 49 should be fixed between them. Any shape and structure capable of giving expansion force can be used.

Further, the tip screw portion 53 of the fixing bolt 51 in the invention of claim 3 is not screwed with the nut 55, but is screwed to the rail mounting bracket 48 side as in the embodiment shown in FIG. May be formed and screwed into the screw hole.

[0042]

As described above, according to the invention of claim 1,
When centering the guide rail in the front-rear direction and in the twist direction, screw the tip of the bolt inserted into the rail mounting plate into the bracket on both sides of the guide rail, and center it in the front-rear direction by increasing or decreasing the amount of screwing. Centering in the twisting direction by making the right and left sides different by the required amount, and if this centering is possible, the bolts are welded and fixed to the bracket and rail mounting plate. Without using it, just increase or decrease the screwed amount of the bolt, before and after the guide rail,
The centering work in the twist direction can be performed, and the centering work can be easily performed in a short time.

According to the second aspect of the present invention, when the guide rail is centered in the front-rear direction and in the twisting direction, the heads of the pins fixed to the rail mounting plates are struck on both sides of the guide rail, so that the bracket is attached to the bracket. Centering in the front-back direction is performed by increasing or decreasing the press-fitting amount of the tip of the pin that is press-fitted in the opened hole by the same amount on the left and right, and centering in the twisting direction by making the required amount different on the left and right. If the centering is possible, the pins are welded and fixed to the bracket and rail mounting plate.Therefore, centering work in the front-rear direction of the guide rail and in the twisting direction can be done simply by increasing or decreasing the press-fitting amount of the pins without using a shim. The centering work can be easily performed in a short time.

According to the third aspect of the present invention, when centering the guide rail in the front-rear direction and the twisting direction, the amount of screw engagement between the tip of the bolt inserted into the rail mounting plate and the bracket on both sides of the guide rail. Is increased or decreased by the same amount to perform the centering in the front-rear direction, and the left and right are different by the required amount to perform centering in the twisting direction, and the elastic body inserted between the bracket and the rail mounting plate Hold the mounting plate in a certain position,
If this centering is possible, the bolts are welded and fixed to the bracket and the rail mounting plate.Therefore, simply by increasing or decreasing the screwing amount of the bolts without using a conventional shim, the center of the guide rail in the front-rear direction and the twist direction can be adjusted. The centering work can be performed, and the centering work can be easily performed in a short time.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of an embodiment of the invention of claim 1;

FIG. 2 is a front view of the above embodiment.

FIG. 3 is a horizontal sectional view of an embodiment of the invention of claim 2;

FIG. 4 is a front view of the above embodiment.

FIG. 5 is a horizontal sectional view of an embodiment of the invention of claim 3;

FIG. 6 is a front view of the above embodiment.

FIG. 7 is a horizontal sectional view of another embodiment of the invention of claim 3;

FIG. 8 is a side view showing the shape of a spring used in the above embodiment.

FIG. 9 is a structural diagram of a general elevator.

FIG. 10 is a front view of a conventional example.

FIG. 11 is an enlarged horizontal sectional view of a conventional example.

FIG. 12 is an enlarged front view of a conventional example.

[Explanation of symbols]

1 hoistway 2 Guide rail 3 guide rails 13 Guide rail division 14 Side wall 15 Anchor bolt 16 nuts 23 slot 17 Base fixing bracket 18 Connection bracket 20 rail clip 31 Rail mounting bracket 32 Rail mounting plate 33 Rail stop bolt 34 insertion hole 35 Fixing bolt 39 retaining ring 40 Tip screw part 41 screw holes 42 Welded part 43 Rail mounting bracket 44 Rail mounting plate 45 pin through hole 46 pin 47 pin through hole 48 rail mounting bracket 49 Rail mounting plate 50 bolt insertion hole 51 Fixing bolt 53 Tip screw part 54 screw insertion hole 55 nuts 56 compression spring 61 spring

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B66B 7/02

Claims (3)

(57) [Claims] 1. A rail mounting plate for fixing a guide rail, which is arranged so as to face a bracket fixed to a side wall of a hoistway, and a neck portion is inserted into the rail mounting plate on both sides of the guide rail. The screw portion of the tip is attached to a plurality of bolts screwed into the bracket, and the heads of the bolts are attached at positions facing each other via the rail mounting plate, and each neck portion of the bolts can be rotated. And a plurality of retaining rings that support the rail so that it cannot slide in the lengthwise direction, and an elevator guide rail fixing device. 2. A rail mounting plate for fixing the guide rail, which is arranged so as to face a bracket fixed to the side wall of the hoistway, and a head is fixed to the rail mounting plate on both sides of the guide rail. And a plurality of pins each having a tip portion press-fitted and penetrated into a hole formed in the bracket. 3. A rail mounting plate for fixing the guide rail, which is arranged so as to face a bracket fixed to the side wall of the hoistway, and a neck portion is inserted into the rail mounting plate on both sides of the guide rail. And a plurality of bolts whose threaded portions are screwed into the bracket, and an elastic body interposed between the opposing surfaces of the bracket and the rail mounting plate so as to maintain a distance therebetween. Fixing device for elevator guide rails.