JP6215393B1 - Elevator guide rail structure - Google Patents

Abstract

A guide rail structure including a reinforcing member capable of reinforcing the guide rail without worrying about interference with the eye plate. A guide rail structure for an elevator according to an embodiment includes a plurality of rail members that extend in the vertical direction in the elevator hoistway and that are arranged to be continuous in the vertical direction, and are fixed to the rail members. A reinforcing member extending in the vertical direction along the back surface, a back surface of the lower end portion of the upper rail member of the two rail members fixed to the reinforcing member and adjacent in the vertical direction, and a lower side of the two rail members And a rear face of the upper end portion of the rail member, and a joint plate connecting the two rail members. [Selection] Figure 2

Description

  Embodiments described herein relate generally to an elevator guide rail structure.

  Conventionally, an elevator hoistway has been provided with a guide rail that guides a car and a counterweight vertically in the hoistway. The guide rail has a length suitable for the length of the hoistway by connecting a plurality of short rail members (for example, several meters) in the vertical direction by a plate (rail joint plate). Some guide rails connected in the vertical direction are provided with a reinforcing member (for example, a steel material) in order to improve the rigidity of the guide rail. For example, in Patent Document 1, a plurality of flat plate pieces having a width wider than the width of the eye plate are fixed to the back surface of the guide rail (the surface facing the inner wall surface of the hoistway) at intervals, and the plurality of flat plate pieces are fixed. A reinforcement structure of an elevator guide rail that fixes an L-shaped steel material protruding toward the inner wall surface of a hoistway so as to straddle the vertical direction is disclosed. Patent Document 2 discloses a reinforcing structure for an elevator guide rail using a reinforcing metal fitting that can be attached to the back surface of the guide rail while escaping a screw or a nut for fixing the eye plate itself or the eye plate.

JP 2000-118909 A JP 2014-169143 A

  Elevator guide rail rigidity is mainly determined in accordance with safety standards (for example, earthquake resistance standards), but after construction, safety standards and earthquake resistance standards for buildings may be reviewed, and the guide rail rigidity is increased accordingly. Reinforcement may occur if necessary. The guide rail of the elevator is supported in a state where a gap is formed from the inner wall surface to the hoistway side via a plurality of mounting brackets provided at intervals in the vertical direction on the inner wall surface of the hoistway, for example. The mounting bracket may have an installation interval that depends on the structure of the building, and the guide rail may be easily bent depending on the installation interval. When reinforcing such a guide rail, it is necessary to determine the shape and rigidity of the reinforcing member in consideration of interference with the eye plate already fixed to the guide rail, which limits the degree of design freedom. There was a case. Therefore, if a guide rail structure including a reinforcing member capable of reinforcing the guide rail without worrying about interference with the eye plate is obtained, the degree of freedom in design is improved and meaningful.

The guide rail structure of the elevator of the embodiment includes a plurality of rail members, a reinforcing member, and a face plate. The plurality of rail members are disposed so as to extend in the vertical direction in the elevator hoistway and to be continuous in the vertical direction. The reinforcing member is fixed so as to come into contact with the back surface of the rail member, and extends in the vertical direction along the back surface of the rail member. The eye plate is fixed in an integrated manner with a reinforcing member that contacts the back surface of the rail member, and the back surface of the lower end portion of the upper rail member of the two rail members adjacent in the vertical direction and the two rails The two rail members are connected to the back surface of the upper end portion of the lower rail member among the members.

FIG. 1 is a schematic diagram illustrating the guide rail structure of the elevator according to the first embodiment. FIG. 2 is a sectional view of the guide rail structure of the elevator according to the first embodiment. FIG. 3 is a schematic diagram illustrating the installation procedure of the reinforcing member of the guide rail structure of the elevator according to the first embodiment. FIG. 4 is a cross-sectional view of the guide rail structure of the elevator according to the second embodiment. FIG. 5 is a schematic diagram for explaining the installation procedure of the reinforcing member of the guide rail structure of the elevator according to the second embodiment. FIG. 6 is a cross-sectional view of the guide rail structure of the elevator according to the third embodiment. FIG. 7 is a cross-sectional view of the guide rail structure of the elevator according to the fourth embodiment. FIG. 8 is a sectional view of the guide rail structure of the elevator according to the fifth embodiment. FIG. 9 is a sectional view of the guide rail structure of the elevator according to the sixth embodiment.

  Below, the guide rail structure of the elevator which concerns on embodiment is demonstrated in detail based on drawing. The constituent elements in this embodiment include those that can be easily replaced by those skilled in the art or that are substantially the same, and the present invention is not limited to the following embodiments.

<Embodiment 1>
FIG. 1 is a schematic diagram illustrating an elevator guide rail structure 10 according to a first embodiment. The guide rail 12 of the elevator guides a car that moves up and down the hoistway and a track of a counterweight, and is supported by, for example, a mounting bracket provided on the inner wall surface of the hoistway. Such a guide rail 12 is configured by arranging a plurality of rail members 14 in the vertical direction in the hoistway. Each rail member 14 is a steel material having a substantially T-shaped cross section, for example, and is manufactured to a predetermined length (for example, several meters) by rolling. Of the two rail members 14 adjacent in the vertical direction, the lower end portion 14b of the back surface 14a of the upper rail member 14 and the upper end portion 14c of the back surface 14a of the lower rail member 14 of the two rail members 14 16 (rail joint plate), and the two rail members 14 are connected. By repeating such coupling, the guide rail 12 has a length suitable for the elevator hoistway length.

  The eye plate 16 of the first embodiment is fixed to a reinforcing member 18 described later. For example, planar processing is applied to the lower end portion 14b and the upper end portion 14c of the back surface 14a of the rail member 14. Planar processing is performed by grinding, for example. In the case of FIG. 1, the plane-processed part is recessed from the part of the other back surface 14a. By performing the planar treatment, when the lower end portion 14b and the upper end portion 14c and the eye plate 16 are brought into contact with each other, the degree of adhesion between them can be improved and the connection strength of the rail member 14 can be improved. In addition, positioning when the upper and lower rail members 14 are fixed by the eye plate 16 is facilitated, and work efficiency is improved. In the guide rail 12 (rail member 14), the guide portion 14d faces the hoistway side, that is, the side through which the car and the counterweight pass, and the back surface 14a of the base portion 14e connected to the guide portion 14d surrounds the hoistway. It arrange | positions so that it may face one surface among inner wall surfaces.

  The rigidity required for the guide rail 12 in which a plurality of rail members 14 are connected is determined mainly according to the safety standards and earthquake resistance standards of the building, but may be reviewed after the construction of the building. For example, it may be necessary to increase the rigidity of the guide rail with the review of safety standards and earthquake resistance standards. As a technique in such a case, for example, a reinforcing member 18 that is fixed to the rail member 14 and extends in the vertical direction along the back surface 14a of the rail member 14 is installed, and the guide rail 12 (rail member 14) is bent. May reduce or prevent. The reinforcing member 18 is, for example, a member obtained by bending a steel plate to have a substantially groove shape (C shape) in cross section, and extends in the vertical direction along the back surface 14a of the guide rail 12 (rail member 14). More specifically, the reinforcing member 18 includes a first portion 18a that extends in the vertical direction substantially parallel to the back surface 14a of the rail member 14, and a second portion 18b that intersects with the first portion 18a and extends in the vertical direction. have. In the case of FIG. 1, the first portion 18a is in contact with the back surface 14a of the guide rail 12 (rail member 14), and the second portion 18b is protruded toward the inner wall surface A (see FIG. 2). The one portion 18a is provided at both edges in the width direction.

  The reinforcing member 18 can be fixed to the base portion 14e of the guide rail 12 (rail member 14) by using an appropriate coupler. In the case of FIG. 1, the reinforcing member 18 is locked by, for example, a plurality of clips 20, and fixed to the base portion 14e by bolts 22a, nuts 22b, and the like.

  FIG. 2 is a cross-sectional view of the guide rail structure 10 according to the first embodiment. The eye plate 16 of the first embodiment is fixed to the reinforcing member 18 by welding, for example. The reinforcing member 18 is provided with a through hole 24 (second through hole) through which the eye plate 16 passes. By passing through the through hole 24, the face plate 16 can expose one surface of the face plate 16 from the first portion 18a of the reinforcing member 18 to the back surface 14a side of the guide rail 12 (rail member 14). Thus, the lower end portion 14b and the upper end portion 14c can be brought into contact with the eye plate 16. In the case of FIG. 2, the one surface side of the eyeplate 16 is separated from the surface on the rail member 14 side of the first portion 18 a by an amount corresponding to the depth of the recesses of the lower end portion 14 b and the upper end portion 14 c through the through hole 24. Protruded. In this state, on the inner wall surface A side of the first portion 18a of the reinforcing member 18, the eye plate 16 and the first portion 18a are welded to form a weld bead 28. That is, the eye plate 16 is integrated with the reinforcing member 18, and the upper and lower rail members 14 can be connected when the reinforcing member 18 is fixed to the guide rail 12.

  As shown in FIGS. 1 and 2, the eye plate 16 is provided with a plurality of (eight in the case of FIG. 1) fixing through holes 16 a. The rail member 14 is provided with a plurality of fixing through holes 14f (first through holes) (four at the lower end portion 14b and four at the upper end portion 14c) at positions corresponding to the fixing through holes 16a. ing. When the rail member 14 is connected by the eye plate 16, the bolt 26 a is inserted into the fixing through hole 14 f from the rail member 14 side, and is further inserted into the corresponding fixing through hole 16 a, and on the other surface of the eye plate 16. Fastened with a nut 26b.

  As described above, the eye plate 16 is fixed to the reinforcing member 18 of the first embodiment in advance. That is, the reinforcing member 18 can be attached to the guide rail 12 in a state where the rail member 14 is not connected by the eye plate 16.

  As described above, for example, the rail member 14 has a gap from the inner wall surface A to the hoistway side via a plurality of mounting brackets (not shown) provided on the inner wall surface A of the hoistway at intervals in the vertical direction. Supported by the state. Therefore, when the guide rails 12 connected by the eyeplate 16 are already installed in the hoistway, the gap between the upper and lower rail members 14 that is not a joint, that is, the inner wall surface A of the portion without the eyeplate 16 is The distance D0 is from the back surface 14a of the rail member 14. On the other hand, the gap with respect to the inner wall surface A of the portion where the eye plate 16 exists is a distance D1 from the tip of the thread portion of the bolt 26a for fixing the eye plate 16 to the rail member 14. That is, when reinforcing the existing rail member 14 (guide rail 12) connected by the eye plate 16, the use space for attachment is only the distance D1. As a result, the reinforcing parts that can be used for reinforcement are limited to shapes that can pass the distance D1. Alternatively, the reinforcing parts are attached while avoiding the portion of the eye plate 16. That is, there is a possibility that the design of the reinforcing member in consideration of not interfering with the eye plate 16 is required, and the degree of design freedom may be reduced.

On the other hand, in the case of the guide rail structure 10 according to the first embodiment, the eye plate 16 is fixed to the reinforcing member 18 in advance. Therefore, when reinforcing the rail member 14 (guide rail 12), the eye plate 16 is not attached. The reinforcing member 18 in which the eye plate 16 is integrated is attached to the rail member 14 in the state. That is, the distance D0 from the back surface 14a of the rail member 14 to the inner wall surface A can be used as a use space for attaching the reinforcing member 18 without considering interference with the eye plate 16. Therefore, in order to improve the rigidity of the reinforcing member 18, the thickness of the first portion 18a can be selected within the range of the distance D0. Further, in order to improve the rigidity of the reinforcing member 18, the rising height of the second portion 18b (the height in the direction from the first portion 18a toward the inner wall surface A) can be selected within the range of the distance D0. . In particular, when the thickness of the first portion 18a is the same, it is possible to increase the rigidity of the entire reinforcing member 18 by increasing the rising height of the second portion 18b. For example, the rail member 14 (guide rail 12) Can be suppressed. Further, when the rigidity of the reinforcing member 18 is improved, only the height of the second portion 18b is increased, and the thickness of the first portion 18a is maintained, so that the increase in the weight of the reinforcing member 18 is minimized. While suppressing, the rigidity of the reinforcing member 18 can be improved. Moreover, in the case of the reinforcing member 18 of Embodiment 1, as shown in FIG. 1, FIG. 2, the width | variety of the 1st part 18a is wider than the width | variety of the 2nd part 18b. Therefore, instead of improving the rigidity by increasing the thickness of the first portion 18a, the overall rigidity of the reinforcing member 18 can be easily improved by increasing the protruding height of the second portion 18b. That is, the rigidity of the reinforcing member 18 can be improved while minimizing an increase in the weight of the reinforcing member 18. Further, the thickness of the first portion 18a can be reduced in accordance with the improvement in rigidity due to the increase in the height of the second portion 18b, and the reinforcement having a desired rigidity can be achieved while reducing the weight of the reinforcing member 18. The member 18 can be obtained. That is, the guide rail structure 10 according to the first embodiment can reduce the weight of the reinforcing member 18 while improving the rigidity of the reinforcing member 18. As a result, the material cost of the reinforcing member 18 can be reduced and the ease of handling of the reinforcing member 18 can be improved by reducing the weight.

  FIG. 3 is a schematic diagram illustrating an installation procedure R1 of the reinforcing member 18 of the guide rail structure 10 according to the first embodiment. In the case of FIG. 3, as shown in the upper part, the guide rail 12 connected by the eye plate 16 is already installed in the hoistway at a distance D0 with respect to the inner wall surface A. That is, the case where the reinforcement member 18 is additionally installed in order to reinforce the existing guide rail 12 is shown. As described above, in the case of the existing guide rail 12, the gap between the portion where the eye plate 16 exists and the inner wall surface A is the distance D <b> 1. That is, when reinforcing the existing guide rail 12, the distance D1 is limited.

  In the case of the guide rail structure 10 of the first embodiment, since the eye plate 16 is fixed to the reinforcing member 18, when reinforcing the guide rail 12 with the reinforcing member 18, first, as shown in the middle stage, first, an existing guide rail is provided. Remove the eye plate 16 from 12. In this case, the two rail members 14 connected in the vertical direction are released from the connection, but as described above, the rail member 14 is supported on the inner wall surface A by the mounting bracket. Further, during the installation work of the reinforcing member 18, the posture of the rail member 14 becomes unstable due to the removal of the eye plate 16 by fixing the two rail members 14 connected in the vertical direction with a fixing jig (for example, a vise). The occurrence of inconvenience such as becoming is suppressed. As shown in FIG. 3, by removing the existing eye plate 16 from the guide rail 12 (rail member 14), the installation use space is widened to a distance D <b> 0. That is, it is possible to mount the reinforcing member 18 having the second portion 18b having a high rising height and having improved rigidity.

  Subsequently, as shown in the lower stage, the reinforcing member 18 having the eye plate 16 fixed is disposed on the back surfaces 14a of the plurality of rail members 14 that extend in the vertical direction in the hoistway and that are arranged to be continuous in the vertical direction. (Replacement step of reinforcing member 18). At this time, the reinforcing member 18 is temporarily fixed to the rail member 14 using the clip 20. And the back plate 14a of the lower end part 14b of the upper rail member 14 among the two rail members 14 adjacent to the up-down direction and the lower side of the two rail members 14 using the bolts 26a and the nuts 26b. By connecting to the back surface 14a of the upper end portion 14c of the rail member 14, the two rail members 14 are connected so as to be continuous in the vertical direction (connection step). Thereafter, the reinforcing member 18 is fixed to the guide rail 12 (rail member 14) by tightening the bolts 22a and nuts 22b of the clip 20 that has been temporarily fixed.

  As described above, when the reinforcing member 18 to which the eye plate 16 is fixed is disposed on the back surface 14a side of the rail member 14, the eye plate 16 is the reinforcing member even if the distance from the eye plate 16 to the inner wall surface A is small. 18, it is not necessary to work by supporting the eye plate 16 alone, and the work of attaching the eye plate 16 to the rail member 14 can be easily performed. Further, since one surface of the eye plate 16 protrudes to the rail member 14 side through the through hole 24 of the reinforcing member 18 and can contact the concave portions of the lower end portion 14b and the upper end portion 14c, the rail member 14 is fixed to the fixing through hole 14f. Positioning of the fixing through-hole 16a of the eye plate 16 is easy, and mounting workability is improved. Moreover, since the eye plate 16, the lower end part 14b, and the upper end part 14c can be directly contacted, both can be fixed stably and the fixing strength can be improved. Further, after the reinforcing member 18 is temporarily fixed to the rail member 14 with the clip 20, the connecting operation of the rail member 14 by the eye plate 16 can be performed. If the eye plate 16 is not fixed to the reinforcing member 18, the eye plate 16 may be dropped during the attaching operation. On the other hand, in the case of the guide rail structure 10 of the first embodiment, since the eye plate 16 is fixed to the reinforcing member 18, the eye plate 16 is prevented from dropping, which can contribute to improvement in workability and safety.

<Embodiment 2>
FIG. 4 is a cross-sectional view of the guide rail structure 100 according to the second embodiment. The guide rail structure 100 according to the second embodiment is substantially the same as the structure of the guide rail structure 10 according to the first embodiment except that the guide rail structure 100 has a structure capable of supporting the eye plate 16, and therefore, a member having an equivalent function is used. The same reference numerals are assigned and detailed description is omitted.

  The reinforcing member 18 according to the second embodiment includes an accommodating portion 30 that accommodates (supports) the eye plate 16. The accommodating part 30 is a groove | channel shape which bends a board | plate material and has the flange part 30a, for example. Then, the flange portion 30a is fixed so as to cover the through hole 24 (second through hole) on the inner wall surface A side of the first portion 18a. The housing part 30 can be fixed by spot welding or the like, for example. The accommodating portion 30 accommodates the eye plate 16 in the recessed groove portion. At this time, the groove width W of the accommodating portion 30 may be equal to the width W0 of the eye plate 16, or the groove width W of the accommodating portion 30 is wider than the width W0 of the eye plate 16, as shown in FIG. In addition, an elastic body 30 b may be provided on the inner surface of the housing portion 30 so that the eye plate 16 is elastically supported by the groove portion of the housing portion 30. For example, a leaf spring or the like can be used as the elastic body 30b. Thus, by elastically supporting the eye plate 16, for example, the temporary fixing position of the eye plate 16 can be adjusted in the width direction of the rail member 14 in a state where the reinforcing member 18 is temporarily fixed to the rail member 14. Become. That is, without correcting the position of the reinforcing member 18 fixed to the rail member 14 with the clip 20, the two rail members 14 already positioned in the vertical direction by the mounting bracket can be easily fixed by adjusting the position on the side plate 16 side. can do. Further, by tightening the clip 20 in this state, the reinforcing member 18 can be permanently fixed to the rail member 14, which can contribute to facilitating and improving the efficiency of the mounting operation. The elastic body 30b is not provided, and a spacer is interposed instead of the elastic body 30b to adjust (temporarily fix) the support position of the eye plate 16 in the accommodating portion 30, and the two rail members 14 are joined. You may do it.

  Further, the reinforcing member 18 having the accommodating portion 30 can support the eye plate 16 at the work site. In other words, the eye plate 16 removed from the existing guide rail 12 can be supported by the reinforcing member 18. In other words, the eye plate 16 can be reused.

  The reinforcing member 18 of the guide rail structure 100 is also provided with a through hole 24 so that one surface side of the eye plate 16 supported by the accommodating portion 30 protrudes from the first portion 18a. That is, the eye plate 16 accommodated in the accommodating portion 30 can come into contact with the lower end portion 14b and the upper end portion 14c of the rail member 14, and as with the guide rail structure 10, the positioning accuracy of both is improved and the adhesion is stabilized. Effects such as improved connection strength can be obtained. The accommodating portion 30 has a through-hole 30c for releasing the tip of the screw portion of the bolt 26a and the nut 26b used when connecting the two rail members 14 with the eye plate 16. By exposing the tip of the screw portion of the bolt 26a and the nut 26b from the housing portion 30, the gap between the eye plate 16 and the inner surface of the housing portion 30 is reduced, and the support of the eye plate 16 by the housing portion 30 is further stabilized. be able to. Further, even when the eye plate 16 is accommodated in the accommodating portion 30, the nut 26b can be tightened from the outside of the accommodating portion 30, so that the attaching operation of the eye plate 16 can be performed as in the case where the accommodating portion 30 is not provided. .

  As described above, since the reinforcing plate 18 of Embodiment 2 can support the eye plate 16 in advance, the reinforcing member 18 can be attached to the guide rail 12 in a state where the rail member 14 is not connected by the eye plate 16. Therefore, similarly to the guide rail structure 10 of the first embodiment, the guide rail structure 100 does not consider interference with the eye plate 16 when the rail member 14 (guide rail 12) is reinforced. A distance D0 from the back surface 14a to the inner wall surface A can be used as a mounting use space of the reinforcing member 18. In other words, the thickness of the first portion 18a can be selected within the range of the distance D0 in order to improve the rigidity of the reinforcing member 18. Further, in order to improve the rigidity of the reinforcing member 18, the rising height of the second portion 18b (the height in the direction from the first portion 18a toward the inner wall surface A) can be selected within the range of the distance D0. . In particular, when the thickness of the first portion 18a is the same, the rigidity of the entire reinforcing member 18 can be increased by increasing the rising height of the second portion 18b, so that the rail member 14 (guide rail 12) It is possible to effectively suppress the deflection.

  Further, when the rigidity of the reinforcing member 18 is improved, only the height of the second portion 18b is increased, and the thickness of the first portion 18a is maintained, so that the increase in the weight of the reinforcing member 18 is minimized. While suppressing, the rigidity of the reinforcing member 18 can be improved. For example, in the case of the reinforcing member 18 of the second embodiment, as shown in FIG. 4, the width of the first portion 18a is wider than the width of the second portion 18b. Therefore, instead of improving the rigidity by increasing the thickness of the first portion 18a, the overall rigidity of the reinforcing member 18 can be improved by increasing the protruding height of the second portion 18b. That is, the rigidity of the reinforcing member 18 can be improved while minimizing an increase in the weight of the reinforcing member 18. Also, considering the improvement in rigidity due to the increase in the height of the second portion 18b, the thickness of the first portion 18a can be reduced, and the desired rigidity is achieved while reducing the weight of the reinforcing member 18. The reinforcing member 18 can be obtained. That is, the guide rail structure 100 of the second embodiment can reduce the weight of the reinforcing member 18 while improving the rigidity of the reinforcing member 18. As a result, the material cost of the reinforcing member 18 can be reduced and the ease of handling of the reinforcing member 18 can be improved by reducing the weight.

  Further, in the case of the guide rail structure 100, by providing the accommodating portion 30 in the reinforcing member 18, the section modulus of the reinforcing member 18 as a whole can be increased as compared with the case of the guide rail structure 10. As a result, when the same reinforcement as that of the guide rail structure 10 is performed, it is possible to reduce the thickness of the first portion 18a or reduce the height of the second portion 18b. Therefore, the design freedom of the reinforcing member 18 can be further improved, and the material cost can be reduced and the weight of the reinforcing member 18 can be reduced. In the case of the guide rail structure 100, the eye plate 16 removed from the existing guide rail 12 can be reused, which can also contribute to cost reduction.

  FIG. 5 is a schematic diagram for explaining the installation procedure R2 of the reinforcing member 18 of the guide rail structure 100 according to the second embodiment. In the case of FIG. 5, as shown in the first stage (upper stage), the guide rail 12 connected by the eye plate 16 is already installed in the hoistway with a distance D0 from the inner wall surface A. Is shown. That is, the case where the reinforcement member 18 is additionally installed in order to reinforce the existing guide rail 12 is shown. As described above, in the case of the existing guide rail 12, the gap between the portion where the eye plate 16 exists and the inner wall surface A is the distance D <b> 1. That is, when reinforcing the existing guide rail 12, the distance D1 is limited.

  In the case of the guide rail structure 100 of the second embodiment, since the eye plate 16 is supported by the reinforcing member 18, when the reinforcing member 18 reinforces the guide rail 12, first, as shown in the second stage, The eye plate 16 is removed from the guide rail 12. In this case, the two rail members 14 connected in the vertical direction are released from the connection, but as described above, the rail member 14 is supported on the inner wall surface A by the mounting bracket. Further, during the installation work of the reinforcing member 18, the posture of the rail member 14 becomes unstable due to the removal of the eye plate 16 by fixing the two rail members 14 connected in the vertical direction with a fixing jig (for example, a vise). The occurrence of inconvenience such as becoming is suppressed. As shown in FIG. 5, by removing the existing eye plate 18 from the guide rail 12 (rail member 14), the installation use space is widened to a distance D0. That is, it is possible to mount the reinforcing member 18 having the second portion 18b having a high rising height and having improved rigidity.

  Subsequently, as shown in the third stage, the eye plate 16 removed from the existing guide rail 12 is accommodated in the accommodating portion 30 of the reinforcing member 18. In this case, the eye plate 16 is inserted through the through hole 24 of the first portion 18 a of the reinforcing member 18 while elastically deforming the elastic body 30 b and is accommodated in the groove portion of the accommodating portion 30.

  Then, as shown in the fourth stage, the reinforcing member 18 in which the eye plate 16 is supported on the back surfaces 14a of the plurality of rail members 14 that extend in the vertical direction in the hoistway and that are arranged to be continuous in the vertical direction. Is arranged (arrangement step of the reinforcing member 18). At this time, the reinforcing member 18 is temporarily fixed to the rail member 14 using the clip 20. And the back plate 14a of the lower end part 14b of the upper rail member 14 among the two rail members 14 adjacent to the up-down direction and the lower side of the two rail members 14 using the bolts 26a and the nuts 26b. By connecting to the back surface 14a of the upper end portion 14c of the rail member 14, the two rail members 14 are connected so as to be continuous in the vertical direction (connection step). Thereafter, the reinforcing member 18 is fixed to the guide rail 12 (rail member 14) by tightening the bolts 22a and nuts 22b of the clip 20 that has been temporarily fixed.

  As described above, when the reinforcing member 18 that supports the eye plate 16 is disposed on the back surface 14 a side of the rail member 14, the eye plate 16 is provided with the reinforcing member 18 even if the distance from the eye plate 16 to the inner wall surface A is small. Therefore, it is not necessary to work by supporting the eye plate 16 alone, and the work of attaching the eye plate 16 to the rail member 14 can be easily performed. Further, one surface of the eye plate 16 protrudes toward the rail member 14 through the through hole 24 of the reinforcing member 18 and can contact the concave portions of the lower end portion 14b and the upper end portion 14c. Further, since the reinforcing member 18 is elastically supported by the elastic body 30b, the position adjustment in the width direction with respect to the accommodating portion 30 can be easily performed, so that the eye plate 16 with respect to the fixing through hole 14f of the rail member 14 is provided. The fixing through hole 16a can be easily positioned and the mounting workability is further improved. Moreover, since the eye plate 16, the lower end part 14b, and the upper end part 14c can be directly contacted, both can be fixed stably and the fixing strength can be improved. Further, after the reinforcing member 18 is temporarily fixed to the rail member 14 with the clip 20, the connecting operation of the rail member 14 by the eye plate 16 can be performed. If the eye plate 16 is not supported by the reinforcing member 18, the eye plate 16 may be dropped during the attaching operation. On the other hand, in the case of the guide rail structure 100 according to the second embodiment, since the eye plate 16 is supported by the reinforcing member 18, the eye plate 16 is prevented from dropping, which can contribute to improvement in mounting workability and safety.

<Embodiment 3>
FIG. 6 is a cross-sectional view of the guide rail structure 110 according to the third embodiment. The guide rail structure 110 is a modification of the guide rail structure 10 of the first embodiment, and is substantially the same as the structure of the guide rail structure 10 except that the female screw hole 34 is provided in the eye plate 32. The members having the functions are denoted by the same reference numerals, and detailed description thereof is omitted.

  It may be necessary to improve the rigidity of the eyeplate itself by reviewing safety standards and seismic standards. In this case, for example, it is conceivable to increase the thickness of the eye plate, but the increase in the thickness of the eye plate is limited by the size of the gap between the eye plate and the inner wall surface A. Further, when the eye plate is thickened, the distance D1 between the tip of the threaded portion of the bolt 26a and the inner wall surface A is further shortened. For example, the workability when fastening the eye plate 16 and the rail member 14 is reduced, or the nut 26b May become unusable. Therefore, the guide rail structure 110 according to the third embodiment is provided with the female screw hole 34 in the eye plate 32 so as to communicate with the fixing through hole 14f (first through hole) provided in the rail member 14. The rail member 14 and the eye plate 32 are coupled by a bolt 36 (a coupling tool) having a male screw portion 36a that penetrates the fixing through hole 14f and meshes with (combines with) the female screw hole 34. That is, the bolt 36 directly meshes with the eye plate 32 via the rail member 14. As a result, the nut 26b used in the guide rail structure 10 can be omitted. That is, the arrangement space of the nut 26 b can be used as a space for increasing the thickness of the eye plate 32.

  Similarly to the eye plate 16 of the first embodiment, the eye plate 32 of the third embodiment is fixed to the reinforcing member 18 by, for example, welding. The reinforcing member 18 is provided with a through hole 24 (second through hole) through which the eye plate 32 passes. By passing through the through hole 24, the face plate 32 can expose one surface of the eye plate 32 from the first portion 18a of the reinforcing member 18 to the back surface 14a side of the guide rail 12 (rail member 14). Thus, the lower end portion 14b and the upper end portion 14c can be brought into contact with the eye plate 16. In the case of FIG. 6, the one surface side of the eyeplate 32 extends from the surface on the rail member 14 side of the first portion 18 a by an amount corresponding to the depth of the recesses of the lower end portion 14 b and the upper end portion 14 c through the through hole 24. Protruded. In this state, a weld bead 28 is formed by welding the eye plate 32 and the first portion 18a on the inner wall surface A side of the first portion 18a of the reinforcing member 18. That is, the eye plate 32 is integrated with the reinforcing member 18, and the upper and lower rail members 14 can be connected when the reinforcing member 18 is fixed to the guide rail 12. In addition, since a nut becomes unnecessary at the time of fastening with the volt | bolt 36 as mentioned above, the workability | operativity at the time of assembling the reinforcing member 18 with the eyeplate 32 to the rail member 14 further improves. Further, the thickness of the eye plate 32 can be selected within the range of the distance between the rail member 14 and the inner wall surface A, and the degree of freedom in selecting the rigidity of the eye plate 32 is increased.

<Embodiment 4>
FIG. 7 is a cross-sectional view of the guide rail structure 120 of the fourth embodiment. The guide rail structure 120 is a modification of the guide rail structure 100 of the second embodiment, and is substantially the same as the structure of the guide rail structure 100 except that the female screw hole 34 is provided in the eye plate 32. The members having the functions are denoted by the same reference numerals, and detailed description thereof is omitted.

  Similar to the guide rail structure 110 of the third embodiment, the guide rail structure 120 of the fourth embodiment is configured so that it can communicate with the fixing through hole 14f (first through hole) provided in the rail member 14. A female screw hole 34 is provided in 32. The rail member 14 and the eye plate 32 are coupled by a bolt 36 (a coupling tool) having a male screw portion 36a that penetrates the fixing through hole 14f and meshes with (combines with) the female screw hole 34. That is, the bolt 36 directly meshes with the eye plate 32 via the rail member 14. As a result, the nut 26b used in the guide rail structure 100 can be omitted. As a result, similarly to the guide rail structure 110 of the third embodiment, the arrangement space of the nut 26b can be used as a space for increasing the thickness of the eye plate 32.

  Similar to the eye plate 16 of the second embodiment, the reinforcing plate 18 of the fourth embodiment has an accommodating portion 38 that accommodates (supports) the eye plate 32. The accommodating portion 38 has, for example, a groove shape having a flange portion 38a by bending a plate material. Then, the flange portion 38a is fixed by, for example, spot welding so as to cover the through hole 24 (second through hole) on the inner wall surface A side of the first portion 18a. The accommodating portion 38 accommodates the eye plate 32 in the recessed groove portion. At this time, the groove width of the accommodating portion 38 may be equal to the width of the eye plate 32, or as shown in FIG. 7, an elastic body 38 b is provided on the inner surface of the accommodating portion 38 to accommodate the eye plate 32. You may make it be elastically supported by the groove part of the part 38. FIG. By elastically supporting the eye plate 32, it is possible to temporarily fix the eye plate 32 to the reinforcing member 18 similarly to the guide rail structure 100, and temporarily fix the eye plate 32 when fastened to the rail member 14. The position can be adjusted. That is, without correcting the position of the reinforcing member 18 fixed to the rail member 14 with the clip 20, the two rail members 14 already positioned in the vertical direction by the mounting bracket are easily fixed by adjusting the position on the side plate 32 side. can do. By tightening the clip 20 in this state, the reinforcing member 18 can be permanently fixed to the rail member 14, which can further contribute to facilitating and improving the efficiency of the mounting operation. Further, since a nut is not required when fastening with the bolt 36, the workability when the reinforcing member 18 having the eye plate 32 supported on the rail member 14 is assembled is further improved.

  In the case of the accommodating portion 38 shown in FIG. 7, a clearance is provided in the groove to allow the tip of the screw portion of the bolt 36 protruding from the eye plate 32 to escape, but this clearance is omitted by adjusting the screw length of the bolt 36. May be. That is, you may make it support the three surfaces of the eyeplate 32 by the accommodating part 38 stably. Similarly to the accommodating portion 30 of the guide rail structure 100, the accommodating portion 38 is provided with a through hole through which the tip of the screw portion of the bolt 36 is released, and the tip of the screw portion of the bolt 36 is projected to the outer surface of the accommodating portion 38, The three surfaces of the plate 32 may be stably supported by the accommodating portion 38. In addition, when the distal end of the threaded portion of the bolt 36 can be released by the thickness of the accommodating portion 38, a concave portion for allowing the distal end of the threaded portion of the bolt 36 to escape may be provided in the accommodating portion 38. Also in this case, the three surfaces of the eye plate 32 can be stably supported by the accommodating portion 38.

<Embodiment 5>
FIG. 8 is a cross-sectional view of the guide rail structure 130 of the fifth embodiment. The guide rail structure 130 is a modification of the guide rail structure 10 of the first embodiment, and is substantially the same as the structure of the guide rail structure 10 except that the shape of the reinforcing member 40 is changed. The members having the same reference numerals are assigned the same reference numerals, and detailed description thereof is omitted.

  The reinforcing member 40 is, for example, a member obtained by bending a steel plate so that the cross-sectional shape is substantially grooved (C-shaped), and extends in the vertical direction along the back surface 14a of the guide rail 12 (rail member 14). More specifically, the reinforcing member 40 includes a first portion 40a that extends in the vertical direction substantially parallel to the back surface 14a of the rail member 14, and a second portion 40b that intersects with the first portion 40a and extends in the vertical direction. have. In the case of FIG. 8, the first portion 40 a contacts the back surface 14 a of the guide rail 12 (rail member 14), and the second portion 40 b of the first portion 40 a protrudes toward the inner wall surface A. It is provided at both edges in the width direction. The first portion 40a does not have the through hole 24 provided in the reinforcing member 18 of the first embodiment. Therefore, the eye plate 42 is fixed (for example, welded) in a posture in which it is placed on the surface on the inner wall surface A side of the first portion 40 a of the reinforcing member 40. Since the first portion 40a is not provided with a through hole that allows the eye plate 42 to pass through, the thickness of the first portion 40a of the reinforcing member 40 and the protruding height of the second portion 40b are the reinforcing member 18 of the first embodiment. Even in the same case, the rigidity of the reinforcing member 40 is improved as compared with the reinforcing member 18.

  In addition, as shown in FIG. 1, when planar processing (dent) is formed by grinding etc. in the lower end part 14b and upper end part 14c of the back surface 14a of the rail member 14, the planar reinforcement member 40 (1st If the part 40a) is attached, a gap is formed. Therefore, in the case of the reinforcing member 40 of the fifth embodiment, the first portion 40a is provided with a protruding portion 40c for filling the recess of the back surface 14a of the rail member 14. The protrusion 40c has a protrusion height substantially the same as the depth of the recess formed in the lower end 14b and the upper end 14c of the back surface 14a. As a result, when the reinforcing member 40 is attached to the rail member 14, it is possible to bring them into close contact with each other, so that stability at the time of attachment can be improved and rigidity is improved by the close contact. The first portion 40a of the reinforcing member 40 may be a plane, and a spacer having a thickness equivalent to the depth of the recess of the back surface 14a may be interposed between the lower end portion 14b and the upper end portion 14c and the first portion 40a. Good. In this case, the spacer may be fixed to the lower end portion 14b and the upper end portion 14c side, or may be fixed to the first portion 40a side.

  The eye plate 42 is provided with a plurality of fixing through holes 42a. The first portion 40a is provided with a through hole 40d at a position corresponding to the fixing through hole 42a. Further, the rail member 14 is provided with a plurality of fixing through holes 14f (first through holes) at positions corresponding to the fixing through holes 42a and the through holes 40d. When the rail members 14 are joined together by the eyeplate 42, the bolts 26a are inserted into the fixing through holes 14f from the rail member 14 side, and further inserted into the corresponding through holes 40d and the fixing through holes 42a. On the other side, the nut 26b is used for fastening.

<Embodiment 6>
FIG. 9 is a cross-sectional view of the guide rail structure 140 of the sixth embodiment. The guide rail structure 140 is a modification of the guide rail structure 100 of the second embodiment, and is substantially the same as the structure of the guide rail structure 100 except that the shape of the reinforcing member 40 is changed. The members having the same reference numerals are assigned the same reference numerals, and detailed description thereof is omitted.

  The reinforcing member 40 is substantially the same as the reinforcing member 40 of the guide rail structure 130 of the fifth embodiment. That is, the shape of the reinforcing member 40 of the guide rail structure 140 and the effect of improving the rigidity based on the shape are substantially the same as those of the guide rail structure 130, and detailed description thereof is omitted.

  Similar to the reinforcing member 18 of the guide rail structure 100, the reinforcing member 40 of the guide rail structure 140 includes the accommodating portion 30 that accommodates (supports) the eye plate 42. The accommodating part 30 has a groove shape having a flange part 30a by bending, for example, a plate material, covers the through hole 40d for the bolt 26a provided in the first part 40a with the groove part, and is provided in the accommodating part 30. The through hole 30c and the through hole 40d are fixed to the first portion 40a by spot welding or the like so as to be coaxial. Since the first portion 40a is not provided with a through-hole that allows the eye plate 42 to pass through, when the eye plate 42 is accommodated in the accommodating portion 30, it is inserted into the accommodating portion 30 from above and below. . Therefore, the elastic body 30b that elastically supports the eye plate 42 is provided on the inner wall surface of the groove portion of the accommodating portion 30 in a posture that does not catch when the eye plate 42 is inserted from above or below. Yes. Further, the through hole 40d is provided with a larger diameter than the fixing through hole 42a so that the insertion of the bolt 26a can be allowed even when the position of the eye plate 42 is adjusted in the accommodating portion 30. In the case of the guide rail structure 140, since the eye plate 42 is supported by the elastic body 30b and the first portion 40a, the support stability is improved compared to the guide rail structure 100 of the second embodiment.

<Modification>
In Embodiment 1 to Embodiment 6 described above, the reinforcing member 18 (40) is an example in which a member obtained by bending a steel plate and having a substantially groove shape (C-shape) in cross section is used. The shape of 18 (40) is not limited to this, and can be appropriately selected depending on the rigidity required for the reinforcing member 18 (40). For example, a flat steel plate may be used. As described in each embodiment, the reinforcing member 18 (40) fixes or supports the eye plate 16 (32, 42). Therefore, after removing the eye plate 16 (32, 42) from the existing guide rail 12, the reinforcing member 18 (40) is attached. Therefore, the reinforcement member 18 (40) can be designed without receiving interference from the existing eyeplate on the guide rail 12, and the degree of freedom in design is improved. Further, since the eye plate 16 (32, 42) is fixed or supported on the reinforcing member 18 (40), the attaching operation to the guide rail 12 is facilitated, and the efficiency of the reinforcing operation can be improved.

  Further, with respect to the guide rail structure 130 of the fifth embodiment and the guide rail structure 140 of the sixth embodiment, the female screw hole 34 of the eye plate 32 described in the guide rail structure 110 of the third embodiment and the guide rail structure 120 of the fourth embodiment. May be applied, and an equivalent effect can be obtained.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  10, 100, 110, 120, 130, 140 ... guide rail structure, 12 ... guide rail, 14 ... rail member, 14a ... back surface, 14b ... lower end, 14c ... upper end, 14f ... fixing through-hole (first Through-hole), 16, 32, 42 ... eyeplate, 18, 40 ... reinforcing member, 18a, 40a ... first part, 18b, 40b ... second part, 24 ... through-hole (second through-hole), 26a ... bolt, 26b ... nut, 30, 38 ... accommodating portion, 34 ... female screw hole, 36 ... bolt (connector), 36a ... male screw portion, A ... inner wall surface.

Claims (5)

A plurality of rail members that extend in the vertical direction in the elevator hoistway and that are arranged so as to be continuous in the vertical direction are fixed in a manner to come into contact with the back surface of the rail member, and the vertical direction along the back surface of the rail member And a lower end portion of the upper rail member among the two rail members adjacent to each other in the up-down direction and fixed in an integrated manner with the reinforcing member that is in contact with the back surface of the rail member. A guide rail structure for an elevator, comprising: a back plate, and a back plate connected to the upper end portion of the lower rail member of the two rail members, and connecting the two rail members. A plurality of rail members arranged in the elevator hoistway so as to extend in the vertical direction and to be continuous in the vertical direction; and a back surface of the lower end portion of the upper rail member among the two rail members adjacent in the vertical direction; The lower surface of the two rail members is coupled to the back surface of the upper end portion of the rail member , and is fixed in such a manner that the eye plate connecting the two rail members and the rear surface of the rail member are in contact with each other. A guide rail structure for an elevator, comprising: a reinforcing member that extends in a vertical direction along a back surface of the rail member and has a housing portion that supports the eye plate.   The said reinforcing member has a 1st part extended in an up-down direction substantially parallel to the said back surface of the said rail member, and a 2nd part which cross | intersects the said 1st part and extends in an up-down direction. The elevator guide rail structure according to 2.   The eye plate is provided with a female screw hole, the rail member is provided with a first through hole, and a coupler having a male screw portion that passes through the first through hole and is coupled to the female screw hole. The guide rail structure for an elevator according to any one of claims 1 to 3, wherein the rail member and the eye plate are coupled to each other.   The elevator guide rail structure according to any one of claims 1 to 4, wherein the reinforcing member is provided with a second through hole through which the eye plate passes.

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