JP4964278B2 - Guide rail mounting jig - Google Patents

Description

The present invention relates to a guide rail attachment jig for fixing the guide rails for guiding the car and the counterweight of the elevator to the rail brackets.

  In general, an elevator has a guide rail standing in a hoistway for guiding a car and a counterweight. And the guide rail is being fixed to steel materials, such as the wall surface of a hoistway, the beam of a building, by the fixing device in the several places of the standing direction.

  The elevator installation operation includes a step of first fixing the rail bracket to the guide rail in order to fix the guide rail to the hoistway wall surface. In this step, the guide rail is clamped between the spring-type spring clip and the rail bracket, and the bolt is tightened to integrally fix the guide rail and the rail bracket (see Patent Document 1).

  However, the guide rail fixing method described in Patent Document 1 has a problem in that work efficiency deteriorates because a pair of bolts must be fastened while the pair of nuts are hidden behind the rail bracket. There is. In order to increase the efficiency of the bolt fastening operation, for example, a technique of previously welding a nut to the plate body has been proposed (see Patent Document 2).

  In the technique disclosed in Patent Document 2, a rail is first sandwiched between a spring clip and a rail bracket, and a plate with a nut is disposed on the back side of the rail bracket. A pair of bolts and a pair of nuts welded to the nut-attached plate are fastened and fixed using a tightening tool such as an impact wrench.

Japanese Utility Model Publication No. 52-150168 JP 2004-99277 A

  However, in the technique disclosed in Patent Document 2, since the nut and the plate main body are welded, the plate main body cannot be removed from the rail bracket after the fixing operation is completed. Since the plate body ceases its role when the fixing operation is completed, the plate body does not perform a special function and is not required thereafter.

  In addition, one elevator requires four guide rails to guide the car and the counterweight. Furthermore, the location which fixes a guide rail is provided with two or more in the hoistway. Therefore, in order to fix the four guide rails in the hoistway of one elevator, it is necessary to prepare a large number of plates with nuts.

  As a result, since the technique disclosed in Patent Document 2 requires a large number of nut-attached plates, the number of parts of the work tool increases, leading to an increase in cost. Further, it is necessary to weld a large number of nuts to the plate body in advance, and the preparation for performing the fixing work is complicated. Furthermore, since the worker has to bring a large number of plates with nuts to a high place in the hoistway, there is a problem that the work efficiency may be reduced and the work safety may be adversely affected. It was.

An object of the present invention is to provide a guide rail mounting jig that can reduce the cost and improve the safety and work efficiency of work while taking the above-mentioned problems into consideration.

In order to solve the above-mentioned problems and achieve the object of the present invention, a guide rail mounting jig is provided on a rail bracket by sandwiching a guide rail of an elevator with a pair of spring clips and fastening and fixing a pair of nuts and bolts. Used when fixing.
The guide rail mounting jig includes a flat plate main body and a magnet provided on the plate main body. The plate body is formed coaxially with the first plate through hole and the second plate through hole through which the pair of bolts pass, and the pair of the first plate through hole and the second plate through hole. A first nut holding recess and a second nut holding recess for holding the nut so as not to rotate are provided. Further, the magnet attracts and temporarily fixes a pair of nuts held in the first nut holding recess and the second nut holding recess.
The plate body includes a first plate piece and a second plate piece. The first plate piece has a first plate through hole and a first nut holding recess. The second plate piece has a second plate through hole and a second nut holding recess. Moreover, the connection member which connects a 1st plate piece and a 2nd plate piece, and the elastic body arrange | positioned between a 1st plate piece and a 2nd plate piece were provided.

According to the guide rail mounting jig of the present invention, the nut, since only been temporarily fixed by the magnetic force of the magnet, after completion of the fixing operation can be easily removed from the guide rail mounting jig. As a result, the guide rail mounting jig can be reused many times, so that the cost can be reduced. Furthermore, the worker can work without carrying many work tools when working at a high place, and it is possible to improve work efficiency and improve work safety.

It is a perspective view which shows the state using the guide rail attachment jig concerning the 1st Example of this invention. It is a front view which shows the guide rail attachment jig concerning the 1st Example of this invention. It is a fragmentary sectional side view which shows the guide rail attachment jig concerning the 1st Example of this invention. It is a fragmentary sectional side view which shows the state using the guide rail attachment jig concerning the 1st Example of this invention. It is a front view which shows the guide rail attachment jig concerning the 2nd Example of this invention. It is a fragmentary sectional side view which shows the guide rail attachment jig concerning the 2nd Example of this invention. It is a side view which shows the guide rail attachment jig concerning the 3rd Example of this invention.

Hereinafter, embodiments of the guide rail mounting jig of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure. The present invention is not limited to the following form.
The description will be given in the following order.
1. First embodiment example 1-1. Configuration of guide rail mounting jig 1-2. 1. Guide rail fixing method Second embodiment example 3. FIG. Third embodiment

<1. First Embodiment>
1-1. Configuration of Guide Rail Mounting Jig First, an embodiment of the guide rail mounting jig of the present invention (hereinafter referred to as “this example”) will be described with reference to FIGS.
1 is a perspective view showing a state in which a guide rail is fixed to a rail bracket, FIG. 2 is a front view showing a guide rail mounting jig, FIG. 3 is a partial sectional side view showing the guide rail mounting jig, and FIG. 4 is a guide rail. It is a fragmentary sectional side view which shows the state using an attachment jig.

  As shown in FIG. 1, a guide rail 1 that guides a car and a counterweight is erected in an elevator hoistway. The guide rail 1 is fixed to the rail bracket 2 by a pair of spring clips 4, bolts 5, and nuts 6. That is, the guide rail 1 is sandwiched between a pair of elastic spring clips 4 and a rail bracket 2 and fastened and fixed by a pair of bolts 5 and nuts 6. And the guide rail attachment jig | tool 10 is used at the time of the fixing operation | work of this guide rail 1. FIG.

  The rail bracket 2 has a substantially L-shaped cross section. The rail bracket 2 is fixed to a fastener 3 installed on a wall of a hoistway or a beam of a building by a fixing method such as bolts or welding. In this example, the rail bracket 2 is provided with a substantially rectangular fixing hole 7 for fastening and fixing the fastener 3 with a bolt 5. Further, a pair of insertion holes 8 are provided on the surface of the rail bracket 2 facing the guide rail 1 with a predetermined interval (see FIG. 4).

Next, the guide rail mounting jig 10 of this example will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the guide rail mounting jig 10 is formed in a flat plate shape having a substantially rectangular shape. The guide rail mounting jig 10 is disposed between a plate body 11 composed of two plate pieces 12 and 13, a connecting member 14 for connecting the two plate pieces 12 and 13, and the two plate pieces 12 and 13. And an elastic body 16.

  As shown in FIG. 3, the first plate piece 12 and the second plate piece 13 are each formed in a flat plate shape having a substantially rectangular shape. The first plate piece 12 is provided with a first plate through hole 17, a first nut holding recess 18, a magnet fitting portion 19, and two magnet mounting portions 21. Similarly to the first plate piece 12, the second plate piece 13 has a second plate through hole 22, a second nut holding recess 23, a magnet fitting portion 24, and two magnets mounted thereon. A portion 26 is provided.

  The second plate piece 13 is provided with a strap 28. Accordingly, the guide rail mounting jig 10 can be held on the wrist of the operator by the strap 28, and the guide rail mounting jig 10 can be prevented from dropping during work at a high place.

  Further, a neck strap (a string hung on the neck) may be provided instead of the strap 28. When the neck strap is provided, it is preferable to include a safety device that easily disengages the engaging portion when excessive tension is applied to a part of the neck strap. As a result, it is possible to prevent an accident that the operator's neck is squeezed by the neck strap. And the location which installs a safety device is arrange | positioned in the position where a string becomes linear shape when tension | tensile_strength is added. In other words, it is preferable to dispose the portion around the neck opposite to the plate body 11.

  Since the two plate pieces 12 and 13 have the same configuration, the first plate piece 12 will be described here.

  The first plate through hole 17 is a circular hole that is provided substantially at the center of the first plate piece 12 and penetrates from the front surface portion 12 a to the back surface portion 12 b of the first plate piece 12. The diameter of the first plate through hole 17 is set to be larger than the diameter of the threaded portion 5a of the bolt 5 (see FIG. 4). A first nut holding recess 18 is provided on one side in the axial direction of the first plate through hole 17, that is, on the front surface portion 12 a of the first plate piece 12. A magnet fitting portion 19 is provided on the other axial side of the first plate through hole 17, that is, on the back surface portion 12 b of the first plate piece 12.

  The first nut holding recess 18 is a substantially hexagonal counterbore hole that is arranged coaxially with the first plate through hole 17 and is formed slightly larger than the outer shape of the nut 6. The nut 6 is held in the first nut holding recess 18.

  In this example, the example in which the first nut holding recess 18 and the second nut holding recess 23 are formed in a substantially hexagonal shape has been described. However, when the nut 6 has a square outer shape, the two nut holding recesses 18, 23 is formed in a substantially rectangular shape. That is, the shape of the two nut holding recesses 18 and 23 is appropriately set in accordance with the outer shape of the nut.

  Further, two magnet mounting portions 21 and 21 are continuously provided on both sides of the first nut holding recess 18. The two magnet mounting portions 21 and 21 are recessed portions that are recessed in a substantially rectangular shape, and are formed substantially in parallel with the short direction of the first plate piece 12. As shown in FIG. 3, a magnet holder 32 holding a magnet 31 is embedded in the two magnet mounting portions 21 and 21.

  The magnet holder 32 is formed in a substantially rectangular parallelepiped shape and has a cylindrical through hole 32a. And the cylindrical magnet 31 which adsorb | sucks the nut 6 with the magnetic force is engage | inserted by this through-hole 32a. The cylindrical magnet 31 has different magnetic poles at both ends in the axial direction. Therefore, when arranged on the magnet mounting portion 21, the magnetic flux lines of the magnet 31 are directed toward the inside of the first nut holding recess 18. Thereby, the nut 6 held in the first nut holding recess 18 can be efficiently adsorbed by the magnetic force of the magnet 31. The shapes of the through holes 32a and the magnets 31 may be formed not only in a columnar shape but also in a prismatic shape.

  Moreover, although the example which formed the 1st nut holding | maintenance recessed part 18 and the two magnet mounting parts 21 and 21 continuously in this example was demonstrated, the 1st nut holding | maintenance recessed part 18 and the two magnet mounting parts 21, The object can be achieved even if a partition wall is provided between the two.

  The magnet fitting portion 19 is a circular counterbore hole formed concentrically with the first plate through hole 17. The magnet fitting portion 19 is fitted with a ring-shaped magnet 33 for attracting the nut 6 held in the first nut holding recess 18. In addition, although the magnet fitting part 19 was demonstrated as a counterbore hole, ie, a substantially circular recessed part, it is not limited to this, For example, it is good also as a rectangular or hexagonal recessed part. And the magnet 33 fitted in this magnet fitting part 19 is not limited to a ring shape, You may form in the shape of a prism which has a through-hole in the center corresponding to the shape of a magnet fitting part. .

  Here, the material of the nut 6 used in this example is a metal having magnetism in order to be attracted and temporarily fixed by the magnets 31 and 33.

  Further, as the material of the two plate pieces 12 and 13, for example, a metal such as stainless steel is suitable, but other metals can be used, and engineering plastics and the like can be used in addition to the metal. You can also.

  In this example, the magnets 31 and 33 are arranged around the first plate through hole 17 and around the first nut holding recess 18, respectively. However, the present invention is not limited to this. . If the nut 6 held in the first nut holding recess 18 can be adsorbed and temporarily fixed, a magnet is arranged only around either the first plate through hole 17 or the first nut holding recess 18. May be.

  Referring back to FIG. 2, the first plate piece 12 and the second plate piece 13 have the front portions 12 a and 13 a provided with the first nut holding recess 18 and the second nut holding recess 23 in the same direction. In the state of being directed, they are integrally connected by the connecting member 14. Examples of the connecting member 14 include a heat shrinkable tube.

  When the plate body 11 is formed by connecting the two plate pieces 12 and 13, the distance between the first plate through hole 17 and the second plate through hole 22 is a pair of insertion holes provided in the rail bracket 2. It is set to be approximately equal to the interval of 8. That is, the interval between the first nut holding recess 18 and the second nut holding recess 23 is also set to be approximately equal to the interval between the pair of insertion holes 8 provided in the rail bracket 2.

  Further, a substantially circular elastic body 16 is disposed between the two plate pieces 12 and 13. Thereby, when an error occurs in the interval between the pair of insertion holes 8 of the rail bracket 2 and the interval between the two plate through holes 17 and 22, the elastic body 16 is elastically deformed to eliminate the error. Can do. Further, even when the plate body 11 is slightly rotated during the bolting operation on one side and the position of the other insertion hole 8 and the second plate through hole 22 in the rail bracket 2 is displaced, the elastic body 16 is elastically deformed. By doing so, the deviation can be eliminated. Therefore, it is possible to prevent troubles during the other bolting operation caused by the rotation of the plate body 11. And as a material of the elastic body 16, rubber | gum, the resin which has elasticity, etc. are mentioned, for example.

1-2. Next, a method of fixing the guide rail 1 using the guide rail mounting jig 10 of this example will be described.

  First, the side portion of the guide rail 1 is sandwiched between the pair of spring clips 4 and the rail bracket 2. At this time, the first nut holding recess 18 and the second nut holding recess 23 of the guide rail mounting jig 10 are held in advance by the pair of nuts 6 and attracted by the magnets 31 and 33 to the guide rail mounting jig 10. Temporarily fix. Since the nut 6 is attracted by the magnetic force of the magnets 31 and 33, it is possible to prevent the nut 6 from dropping from the nut holding recesses 18 and 23 during the fixing operation. Here, the two nut holding recesses 18 and 23 each have a shape corresponding to the outer shape of the nut 6. Thereby, the nut 6 can be prevented from rotating in the nut holding recesses 18 and 23.

  Next, as shown in FIG. 4, the guide rail mounting jig 10 faces the front portions 12 a and 13 a of the two plate pieces 12 and 13 toward the surface opposite to the surface facing the guide rail 1 in the rail bracket 2. Arrange. Then, the screw portions 5a of the pair of bolts 5 are inserted into the through holes 4a of the pair of spring clips 4 and the insertion holes 8 of the rail bracket 2, and the bolts 5 are screwed into the nuts 6 to be fastened and fixed. At this time, the pair of nuts 6 is held in the nut holding recesses 18 and 23 in a state where the rotation is restricted. Therefore, the operator can easily perform the fastening operation between the bolt 5 and the nut 6 simply by pressing the guide rail mounting jig 10. A washer may be sandwiched between the neck 5b of the bolt 5 and the spring clip 4 as necessary.

  Next, when the fastening and fixing of the pair of bolts 5 and nuts 6 are finished, the guide rail mounting jig 10 is separated from the rail bracket 2. At this time, the pair of nuts 6 temporarily fixed to the two nut holding recesses 18 and 23 are removed from the guide rail mounting jig 10 because they are fastened to the bolts 5. Thereby, the fixing work of the guide rail 1 is completed.

  Moreover, since the guide rail mounting jig 10 is not fixed to the rail bracket 2 by the fastening operation of the bolt 5, it can be reused many times. This reduces costs and eliminates the need to bring many tools to high places in the hoistway, improving work efficiency and increasing work safety. It is.

  Furthermore, since the pair of nuts 6 can be temporarily fixed to the guide rail mounting jig 10 by the magnetic force of the magnets 31 and 32 simply by placing them on the two nut holding recesses 18 and 23, the nuts are welded to the plates. Save time and effort. As a result, it is possible to simplify the preparation for performing the fixing work.

  In general, since it is necessary to fix two pairs of large and small guide rails of the weight guide rail and the main guide rail in the elevator hoistway, it is necessary to set the size of the pair of nuts and the installation interval in two ways. There is. Therefore, it is preferable to prepare two guide rail mounting jigs, a guide rail mounting jig for the main guide rail and a guide rail mounting jig for the counterweight.

<2. Second Embodiment>
Next, a guide rail mounting jig according to a second embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is a front view of the guide rail mounting jig, and FIG. 6 is a partial sectional side view showing the guide rail mounting jig.

  The guide rail mounting jig 10A according to the second embodiment is different from the guide rail mounting jig 10 according to the first embodiment in the shape of an elastic body. Therefore, here, the same reference numerals are given to the portions common to the guide rail mounting jig 10, and the duplicated description is omitted.

  As shown in FIG. 5, the elastic body 16A provided in the guide rail mounting jig 10A according to the second embodiment is formed in a substantially rectangular parallelepiped shape. Further, as shown in FIG. 6, insertion holes 29 into which end portions of the elastic body 16A are inserted are provided in the side surfaces 12cA and 13cA facing each other in the first plate piece 12A and the second plate piece 13A. Yes.

  Other configurations are the same as those of the guide rail mounting jig 10 according to the above-described first embodiment, and thus description thereof is omitted. Even with the guide rail mounting jig 10A having such a configuration, it is possible to obtain the same effects as those of the guide rail mounting jig 10 according to the first embodiment described above, and at the time of one bolt tightening operation. Torque applied to the first plate piece 12A or the second plate piece 13A can be received not only by the connecting member 14 but also by the elastic body 16A.

<3. Third Embodiment>
Next, a guide rail mounting jig according to a third embodiment of the present invention will be described with reference to FIG.
FIG. 7 is a front view of the guide rail mounting jig.

  The guide rail mounting jig 10B according to the third embodiment is configured by removing the elastic body 16 and the connecting member 14 from the guide rail mounting jig 10 according to the first embodiment and using the plate body as one member. It was formed by. Therefore, here, the plate body will be described, and portions common to the guide rail mounting jig 10 according to the first embodiment will be denoted by the same reference numerals and redundant description will be omitted.

  As shown in FIG. 7, the plate body 11B is a flat plate-like member formed in a substantially rectangular parallelepiped shape. Nut holding recesses 18B and 23B, plate through holes 17B and 22B, and two magnet mounting portions 21B and 26B are provided on both sides in the longitudinal direction of the substantially rectangular front portion 11aB in the plate body 11B. .

  Other configurations are the same as those of the guide rail mounting jig 10 according to the above-described first embodiment, and thus description thereof is omitted. Also with the guide rail mounting jig 10B having such a configuration, the same operational effects as those of the guide rail mounting jig 10 according to the first embodiment described above can be obtained.

  According to the guide rail mounting jig according to the third embodiment, the guide rail mounting jig according to the first embodiment and the guide rail mounting jig according to the second embodiment. The number of parts can be reduced compared to the above. Thereby, cost can be reduced and manufacture of the guide rail mounting jig can be facilitated.

  The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention described in the claims. For example, in the above-described embodiment, the example in which the main body plate is formed in a substantially rectangular shape has been described. However, the present invention is not limited to this, and the main body plate may be formed in a horizontally long elliptical shape.

  DESCRIPTION OF SYMBOLS 1 ... Guide rail, 2 ... Rail bracket, 3 ... Fastener, 4 ... Spring clip, 4a ... Through-hole, 5 ... Bolt, 5a ... Screw part, 5b ... Neck part, 6 ... Nut, 8 ... Insertion hole, 10, 1A, 10B: Guide rail mounting jig 11, 11B: Plate body, 12, 12A: First plate piece, 12a, 13a: Front portion, 12b: Back portion, 12cA, 13cA: Side surface, 13, 13A: Second Plate piece 14 ... Connection member 16, 16A ... Elastic body 17, 17B ... First plate through-hole 18, 18B ... First nut holding recess 19, 24 ... Magnet fitting part 21, 26B ... Magnet mounting portion, 22, 22B ... second plate through hole, 23, 23B ... second nut holding recess, 28 ... strap, 31, 32 ... magnet

Claims (6)

In the guide rail mounting jig used when the guide rail of the elevator is clamped by a pair of spring clips and fixed to the rail bracket by fastening and fixing a pair of nuts and bolts,
The pair of nuts are formed coaxially with the first plate through hole and the second plate through hole through which the pair of bolts pass, respectively, and the first plate through hole and the second plate through hole. A plate-like plate body having a first nut holding recess and a second nut holding recess that holds the nut so as not to rotate;
A magnet that is provided in the plate body and that adsorbs and temporarily fixes the pair of nuts held in the first nut holding recess and the second nut holding recess;
Equipped with a,
The plate body is
A first plate piece having the first plate through hole and the first nut holding recess;
A second plate piece having the second plate through hole and the second nut holding recess,
A connecting member for connecting the first plate piece and the second plate piece;
An elastic body disposed between the first plate piece and the second plate piece;
Guide rail mounting jig, characterized in that it comprises a. The magnet is installed around at least one of the first plate through hole and the second plate through hole, or the first nut holding recess and the second nut holding recess. The guide rail mounting jig according to claim 1. The guide rail according to claim 1 or 2, wherein each of the first nut holding recess and the second nut holding recess is a counterbore hole formed in substantially the same shape as the outer shape of the nut. Mounting jig. The distance between the first plate through hole and the second plate through hole and the distance between the first nut holding recess and the second nut holding recess are the distance between the pair of insertion holes provided in the rail bracket. The guide rail mounting jig according to any one of claims 1 to 3, wherein the guide rail mounting jig is set to be approximately equal. The guide rail mounting jig according to claim 1 , wherein the elastic body is formed in a substantially circular shape. The elastic body is formed in a substantially rectangular parallelepiped shape,
Wherein the one surface facing each other in the first plate part and the second end plate piece, the guide rail mounting jig according to claim 1, characterized in that insertion holes in which the elastic member is inserted is provided .

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