Guide rail fixing device for elevator

Abstract

Guide rail fixing device for an elevator, comprising: a wall-side bracket (1) comprising a wall-side mounting plate section (13) and fixed to an elevator shaft, the elevator shaft comprising: a first wall surface (4) opposite a rear surface (21) of a guide rail (2); and a second wall surface (5) extending in a direction perpendicular to the rear surface (21) of the guide rail (2); and a rail-side support (3) comprising a rail-side mounting plate section (31) designed to overlap the wall-side mounting plate section (13) and allowing the guide rail (2) to be fixed thereto, wherein the wall-side mounting plate section (13) and the rail-side mounting plate section (31) each have a through-hole (131, 311) in which a fastening means (8) configured to fix the wall-side mounting plate section (13) and the rail-side mounting plate section (31) to each other is inserted along a horizontal plane, wherein the wall-side mounting plate section (13) and the rail-side mounting plate section (31) are arranged such that they extend in a direction perpendicular to the horizontal plane, and wherein the wall-side mounting plate section (13) and the rail-side mounting plate section (31) are arranged such that a contact surface between the wall-side mounting plate section (13) and the rail-side mounting plate section (31) is inclined at an angle other than a right angle, as seen from above, with respect to the rear surface (21) of the guide rail (2).

Description

Technical field

[0001] The present invention relates to a guide rail fixing device for an elevator, which is designed to fix a guide rail to an elevator shaft. General state of the art

[0002] A guide rail fixing device for an elevator has been known to date, comprising: a wall-side bracket including a wall-side mounting plate section extending along a horizontal plane and fixed to an elevator shaft; and a rail-side bracket including a rail-side mounting plate section extending along the horizontal plane and allowing a guide rail to be fixed to it. In the guide rail fixing device for an elevator, when the wall-side mounting plate section and the rail-side mounting plate section are superimposed, the wall-side mounting plate section and the rail-side mounting plate section are fixed by bolts arranged to extend in a vertical direction (see, for example, patent literature 1). List of prior art patent literature

[0003] [PTL 1] JP 4 602 329 B2 Brief description of the invention Technical task

[0004] In the prior art guide rail fixing device for an elevator, the bolts designed to fix the wall-side bracket and the rail-side bracket to each other are arranged to extend vertically. Therefore, a tool for moving the bolts must be able to move along the horizontal plane. This increases the horizontal space available for fastening the wall-side bracket and the rail-side bracket to each other. Furthermore, in the prior art guide rail fixing device for an elevator, the bolts are arranged between a rear surface of the guide rail and a wall surface of the elevator shaft, opposite the rear surface.Therefore, one problem is that if the dimension between the rear surface of the guide rail and the wall surface of the elevator shaft is small, insufficient space can be secured for fastening work.

[0005] The present invention has been made to solve the problem described above, and one of these problems is to provide a guide rail fixing device for an elevator that is able to more reliably secure a space for fixing work involving fixing a wall-side bracket and a rail-side bracket to each other. Solution to the task

[0006] According to one embodiment of the present invention, a guide rail fixing device for an elevator is provided, comprising: a wall-side bracket comprising a wall-side mounting plate section and fixed to an elevator shaft; and a rail-side bracket comprising a rail-side mounting plate section provided to be superimposed on the wall-side mounting plate section and allowing a guide rail to be fixed thereto, wherein the wall-side mounting plate section and the rail-side mounting plate section each have a through-hole in which a fastening means configured to fix the wall-side mounting plate section and the rail-side mounting plate section to each other is inserted along a horizontal plane. Advantageous effects of the invention

[0007] According to the guide rail fixing device for an elevator of the present invention, the wall-side mounting plate section of the wall-side bracket and the rail-side mounting plate section of the rail-side bracket each have a through-hole into which the fastening element is inserted along the horizontal plane. With this design, the fastening element is arranged so that it extends along the horizontal plane. Therefore, even if the dimension between the rear surface of the guide rail and the wall surface of the elevator shaft is small, the space in the horizontal direction for fastening the wall-side bracket and the rail-side bracket to each other can be secured. Consequently, the space for fastening the wall-side bracket and the rail-side bracket to each other can be secured more reliably. Brief description of the drawings Fig. Figure 1 is a front view to illustrate a guide rail fixing device for an elevator according to a first embodiment of the present invention. Fig. Figure 2 is a top view illustrating the guide rail fixing device for an elevator. Fig. 1. Fig. Figure 3 is a front view to illustrate a wall-mounted bracket of Fig. 1. Fig. 4 is a sectional view along line IV-IV of Fig. 2 and seen from the direction indicated by the arrows. Fig. Figure 5 is a top view illustrating a guide rail fixing device for a state-of-the-art elevator. Fig. Figure 6 is a top view illustrating a guide rail fixing device for an elevator according to a second embodiment of the present invention. Description of embodiments

[0008] The following describes, with reference to the drawings, a lifting device according to embodiments of the present invention. In the drawings, the same or corresponding components are designated by the same reference numerals. Any redundant description thereof is duly simplified or omitted. First embodiment

[0009] Fig. Figure 1 is a front view to illustrate a guide rail fixing device for an elevator according to a first embodiment of the present invention. Fig. Figure 2 is a top view illustrating the guide rail fixing device for an elevator. Fig. 1. The guide rail fixing device for an elevator comprises a wall-side bracket 1 and a rail-side bracket 3. The wall-side bracket 1 is fixed to a wall of an elevator shaft. The rail-side bracket 3 allows a guide rail 2 to be fixed to it. Examples of guide rail 2 include an elevator car guide rail and a counterweight guide rail. The elevator car guide rail is designed to guide an elevator car, and the counterweight guide rail is designed to guide a counterweight.

[0010] The elevator shaft comprises a first wall surface 4 and a second wall surface 5. The first wall surface 4 is opposite a rear surface 21 of the guide rail 2. The second wall surface 5 extends in a direction perpendicular to the rear surface 21 of the guide rail 2.

[0011] The wall-side bracket 1 comprises a first wall fixing plate section 11 and a second wall fixing plate section 12. The first wall fixing plate section 11 is fixed to an anchor bolt 6, which is fixed to the first wall surface 4. The second wall fixing plate section 12 is fixed to an anchor bolt 7, which is fixed to the second wall surface 5. The first wall fixing plate section 11 is positioned opposite the first wall surface 4. The second wall fixing plate section 12 is positioned opposite the second wall surface 5.

[0012] Furthermore, the wall-side bracket 1 comprises a wall-side mounting plate section 13 and a horizontal plate section 14. The wall-side mounting plate section 13 allows the rail-side bracket 3 to be fixed to it. The horizontal plate section 14 is continuous with the first wall-fixing plate section 11, the second wall-fixing plate section 12, and the wall-side mounting plate section 13 and is arranged along a horizontal plane.

[0013] The first wall fixing plate section 11, the second wall fixing plate section 12 and the wall-side mounting plate section 13 are arranged such that they extend in a direction perpendicular to the horizontal plane.

[0014] The first wall fixing plate section 11 has a through-hole 111 into which the anchor bolt 6 is inserted. The through-hole 111 is formed such that it extends through the first wall fixing plate section 11 in one of the plate thickness directions of the first wall fixing plate section 11. The through-hole 111 is an elongated hole. One longitudinal direction of the through-hole 111 is inclined with respect to the horizontal plane.

[0015] The second wall fixing plate section 12 has a through-hole (not shown) into which the anchor bolt 7 is inserted. The through-hole of the second wall fixing plate section 12 is formed such that it runs through the second wall fixing plate section 12 in one plate thickness direction of the second wall fixing plate section 12.

[0016] The rail-side bracket 3 comprises a rail-side mounting plate section 31, a rail fixing plate section 32, and a horizontal plate section 33. The rail-side mounting plate section 31 is fixed to the wall-side mounting plate section 13. The rail fixing plate section 32 allows the guide rail 2 to be fixed to it. The horizontal plate section 33 is continuous with the rail-side mounting plate section 31 and the rail fixing plate section 32 and is arranged along the horizontal plane.

[0017] The rail-side mounting plate section 31 and the rail fixing plate section 32 are each arranged such that they extend upwards from the horizontal plate section 33. The rail-side mounting plate section 31 is superimposed on the wall-side mounting plate section 13. The rail fixing plate section 32 is superimposed on the rear surface 21 of the guide rail 2.

[0018] The wall-side mounting plate section 13 and the rail-side mounting plate section 31 are arranged such that a contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is inclined with respect to the rear surface 21 of the guide rail 2, viewed from above. In other words, the wall-side mounting plate section 13 and the rail-side mounting plate section 31 are arranged such that the contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is inclined with respect to the first wall surface 4 and the second wall surface 5, viewed from above.

[0019] The contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is arranged such that it separates from the first wall surface 4 as it approaches the second wall surface 5. With this configuration, when the rail-side mounting plate section 31 is displaced relative to the wall-side mounting plate section 13 in a direction along the horizontal plane and along the contact surface S, both a dimension between the guide rail 2 and the first wall surface 4 and a dimension between the guide rail 2 and the second wall surface 5 are adjusted.

[0020] Furthermore, the guide rail fixing device for an elevator comprises two fastening elements 8 and two fastening elements 9. The fastening elements 8 are designed to fix the wall-side mounting plate section 13 and the rail-side mounting plate section 31 to each other. The fastening elements 9 are designed to fix the rail fixing plate section 32 and the guide rail 2 to each other.

[0021] Fig. Figure 3 is a front view to illustrate the wall-side bracket 1 of Fig. 1. The wall-side mounting plate section 13 has two through holes 131, into which the fasteners 8 are inserted. Each through hole 131 is designed such that it extends through the wall-side mounting plate section 13 in one thickness direction of the wall-side mounting plate section 13. The fasteners 8 are inserted into the through holes 131 along the horizontal plane. Each through hole 131 is an elongated hole. One longitudinal direction of each through hole 131 lies along the horizontal plane.

[0022] Fig. 4 is a sectional view along line IV-IV of Fig. 2 and viewed from the direction indicated by the arrows. The rail-side mounting plate section 31 has two through holes 311, into each of which the fasteners 8 are inserted. Each of the through holes 311 is formed such that it extends through the rail-side mounting plate section 31 in one thickness direction of the rail-side mounting plate section 31. The fasteners 8 are each inserted into the through holes 311 along the horizontal plane. Furthermore, each of the through holes 311 is an elongated hole. One longitudinal direction of each of the through holes 311 lies along the horizontal plane.

[0023] As in Fig. As illustrated in Figure 2, the fasteners 8 each comprise a bolt 81 and a nut 82. The bolt 81 is inserted into the through-hole 131 of the wall-side mounting plate section 13 and the through-hole 311 of the rail-side mounting plate section 31. The nut 82 is mounted onto the bolt 81. The wall-side mounting plate section 13 and the rail-side mounting plate section 31 are fastened by the heads of the bolts 81 and the nuts 82, such that the rail-side bracket 3 is fixed to the wall-side bracket 1. The nut 82 is positioned closer to the first wall surface 4 than the head of the bolt 81.

[0024] As in Fig. As illustrated in Figure 1, the rail fixing plate section 32 has two through holes 321, into which the fasteners 9 are inserted. Each of the through holes 321 is designed such that it extends through the rail fixing plate section 32 in one thickness direction of the rail fixing plate section 32. The fasteners 9 are inserted into the through holes 321 along the horizontal plane. Furthermore, each of the through holes 321 is an elongated hole. One longitudinal direction of each of the through holes 321 lies along the horizontal plane.

[0025] As in Fig. As illustrated in Figure 2, the fasteners 9 each comprise a bolt 91, a nut 92, and a rail fastener 93. The bolt 91 is inserted into the through-hole 321 of the rail fixing plate section 32. The nut 92 is mounted on the bolt 91. The rail fastener 93 is mounted on the bolt 91. The rail fastener 93 is positioned between a head of the bolt 91 and the nut 92. Furthermore, the rail fastener 93 is positioned such that a base 22 of the guide rail 2 is sandwiched between the rail fastener 93 and the rail fixing plate section 32. The rail fixing plate section 32, the base 22 of the guide rail 2, and the rail fastener 93 are fastened by the heads of the bolts 91 and the nuts 92 such that the guide rail 2 is fixed to the rail-side support 3. The nut 92 is positioned closer to the first wall surface 4 than the head of the bolt 91.

[0026] Fig. Figure 5 is a top view illustrating a guide rail fixing device for a prior art elevator. This guide rail fixing device for a prior art elevator comprises the wall-side bracket 1, which is fixed to the first wall surface 4, and the rail-side bracket 3, which allows the guide rail 2 to be fixed thereto. The wall-side bracket 1 comprises the wall-side mounting plate section 13, which extends along the horizontal plane. The rail-side bracket 3 comprises the rail-side mounting plate section 31, which extends along the horizontal plane.

[0027] In the guide rail fixing device for a prior art elevator, when the wall-side mounting plate section 13 and the rail-side mounting plate section 31 are superimposed, the wall-side mounting plate section 13 and the rail-side mounting plate section 31 are fixed by the arranged fasteners 8 such that they extend in a vertical direction. The rail-side mounting plate section 31 has through holes 311 into which the fasteners 8 are inserted. Each of the through holes 311 is an elongated hole. One longitudinal direction of each of the through holes 311 corresponds to a direction in which the rear surface 21 of the guide rail 2 and the first wall surface 4 are opposite each other.

[0028] In the guide rail fixing device for a prior art elevator, the fastening means 8, which are designed to fix the wall-side bracket 1 and the rail-side bracket 3 to one another, are arranged such that they extend in the vertical direction. This design allows a tool for moving the fastening means 8 to move along the horizontal plane. Therefore, the space available for fastening the wall-side bracket 1 and the rail-side bracket 3 to one another is increased in a horizontal direction. Furthermore, the fastening means 8 are arranged between the rear surface 21 of the guide rail 2 and the first wall surface 4 of the elevator shaft, opposite the rear surface 21.Therefore, if a dimension L between the rear surface 21 of the guide rail 2 and the first wall surface 4 of the elevator shaft is small, sufficient space for fastening work cannot be ensured.

[0029] Furthermore, in the guide rail fixing device for a prior art elevator, the through holes 311, into which the fastening elements 8 are inserted, are formed in the rail-side mounting plate section 31 in the direction in which the rear surface 21 of the guide rail 2 and the first wall surface 4 face each other. Therefore, it is difficult to reduce a dimension of the rail-side mounting plate section 31 in the direction in which the rear surface 21 of the guide rail 2 and the first wall surface 4 face each other. Therefore, it is difficult to reduce the dimension L between the rear surface 21 of the guide rail 2 and the first wall surface 4 of the elevator shaft.

[0030] In contrast, in the guide rail fixing device for an elevator according to the first embodiment, the fastening means 8 are arranged such that they extend along the horizontal plane. This design reduces the space required for fastening work in the horizontal direction. Furthermore, the through-holes 311 formed in the rail-side mounting plate section 31 do not extend in the direction in which the rear surface 21 of the guide rail 2 and the first wall surface 4 are opposite each other. Therefore, the dimension L between the rear surface 21 of the guide rail 2 and the first wall surface 4 of the elevator shaft can be reduced.

[0031] Next, the procedures for fixing the guide rail 2 to the elevator shaft using the guide rail fixing device for an elevator are described. First, the wall-side bracket 1 is fixed to the first wall surface 4 and the second wall surface 5. After the wall-side bracket 1 is fixed to the first wall surface 4 and the second wall surface 5, the rail-side bracket 3 is coupled to the wall-side bracket 1 by means of the fasteners 8. At this time, the wall-side mounting plate section 13 and the rail-side mounting plate section 31 are not yet fastened by the fasteners 8. Thus, the rail-side mounting plate section 31 is movable in the horizontal direction relative to the wall-side mounting plate section 13.

[0032] After the rail-side bracket 3 is coupled to the wall-side bracket 1, the guide rail 2 is coupled to the rail-side bracket 3 using the fasteners 9. At this time, the base 22 and the rail fixing plate section 32 are not yet fastened with the fasteners 9. Therefore, the base 22 is horizontally displaceable relative to the rail fixing plate section 32. Thus, the base 22 is moved relative to the rail fixing plate section 32 and is thereby able to adjust the dimension between the guide rail 2 and the second wall surface 5.After the guide rail 2 is coupled to the rail-side bracket 3, the rail-side mounting plate section 31 is moved in the horizontal direction with respect to the wall-side mounting plate section 13, thereby adjusting both the dimension between the guide rail 2 and the first wall surface 4 and the dimension between the guide rail 2 and the second wall surface 5.

[0033] After the dimensions between the guide rail 2 and the first wall surface 4 and the dimensions between the guide rail 2 and the second wall surface 5 have been adjusted, the rail-side bracket 3 is fixed to the wall-side bracket 1 using the fasteners 8. Furthermore, the guide rail 2 is fixed to the rail-side bracket 3 using the fasteners 9. The procedure for fixing the guide rail 2 to the elevator shaft is thus completed.

[0034] As previously described, according to the guide rail fixing device for an elevator according to the first embodiment of the present invention, the wall-side mounting plate section 13 has through holes 131 into which the fasteners 8 are inserted along the horizontal plane, and the rail-side mounting plate section 31 has through holes 311 into which the fasteners 8 are inserted along the horizontal plane. With this configuration, the fasteners 8 are arranged such that they extend along the horizontal plane. Therefore, the tool for moving the fasteners 8 is moved in the direction perpendicular to the horizontal plane. This reduces the space required in the horizontal direction for fastening the wall-side bracket 1 and the rail-side bracket 3 to each other.Therefore, even if the dimension between the rear surface 21 of the guide rail 2 and the first wall surface 4 of the elevator shaft is small, the space in the horizontal direction for fastening the wall-side bracket 1 and the rail-side bracket 3 can be secured. Consequently, the space for fastening the wall-side bracket 1 and the rail-side bracket 3 can be secured more reliably. Furthermore, by reducing the space in the horizontal direction for fastening the wall-side bracket 1 and the rail-side bracket 3, the limit on the horizontal position of the guide rail 2 can be further reduced.

[0035] Furthermore, the wall-side mounting plate section 13 and the rail-side mounting plate section 31 are arranged such that they extend in a direction perpendicular to the horizontal plane. The contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is also arranged such that it is inclined with respect to the rear surface 21 of the guide rail 2, as viewed from above. With this configuration, when the rail-side mounting plate section 31 is displaced relative to the wall-side mounting plate section 13, both the dimension between the guide rail 2 and the first wall surface 4 and the dimension between the guide rail 2 and the second wall surface 5 can be adjusted.

[0036] Furthermore, the wall-side bracket 1 is fixed to both the first wall surface 4 and the second wall surface 5. This design allows the wall-side bracket 1 to be fixed more reliably to the elevator shaft.

[0037] In the first embodiment described above, the configuration is described in which the contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is arranged such that it separates from the first wall surface 4 as it approaches the second wall surface 5. However, an embodiment can be assumed in which the contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is arranged such that it approaches the first wall surface 4 as it approaches the second wall surface 5. Second embodiment

[0038] Fig. Figure 6 is a top view illustrating a guide rail fixing device for an elevator according to a second embodiment of the present invention. In the first embodiment, the configuration is described in which the wall-side bracket 1 is fixed to the anchor bolt 6, which is fixed to the first wall surface 4, and to the anchor bolt 7, which is fixed to the second wall surface 5. In the second embodiment, the anchor bolt 7 is not fixed to the second wall surface 5. Two anchor bolts 6 are fixed to the first wall surface 4. The wall-side bracket 1 is fixed to the two anchor bolts 6 that are fixed to the first wall surface 4. Therefore, the wall-side bracket 1 does not include the second wall fixing plate section 12.

[0039] Furthermore, in the second embodiment, the contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is arranged such that it approaches the first wall surface 4 when it approaches the second wall surface 5. Other embodiments are the same as those of the first embodiment.

[0040] As previously described, according to the guide rail fixing device for an elevator according to the second embodiment of the present invention, the wall-side bracket 1 is fixed to the first wall surface 4. With this design, the wall-side bracket 1 can be arranged remotely from the second wall surface 5.

[0041] Furthermore, the contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is arranged such that it approaches the first wall surface 4 as it approaches the second wall surface 5. With this design, the rail-side bracket 3 can be positioned close to both the first wall surface 4 and the second wall surface 5. Consequently, the guide rail 2 can be positioned close to both the first wall surface 4 and the second wall surface 5.

[0042] In the second embodiment described above, the configuration is described in which the wall-side bracket 1 is fixed to the plurality of anchor bolts 6, which are fixed to the first wall surface 4. However, an embodiment can be assumed in which the wall-side bracket 1 is fixed to the plurality of anchor bolts 7, which are fixed to the second wall surface 5.

[0043] Furthermore, the second embodiment described above describes a configuration in which the contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is arranged such that it approaches the first wall surface 4 as it approaches the second wall surface 5. However, an embodiment can be assumed in which the contact surface S between the wall-side mounting plate section 13 and the rail-side mounting plate section 31 is arranged such that it separates from the first wall surface 4 as it approaches the second wall surface 5. Reference symbol list

[0044] 1 Wall-side bracket, 2 Guide rail, 3 Rail-side bracket, 4 First wall surface, 5 Second wall surface, 6 Anchor bolt, 7 Anchor bolt, 8 Fastener, 9 Fastener, 11 First wall fixing plate section, 12 Second wall fixing plate section, 13 Wall-side mounting plate section, 14 Horizontal plate section, 21 Rear surface, 22 Base, 31 Rail-side mounting plate section, 32 Rail fixing plate section, 33 Horizontal plate section, 81 Bolt, 82 Nut, 91 Bolt, 92 Nut, 93 Rail fixing, 111 Through hole, 131 Through hole, 311 Through hole, 321 Through hole

Claims

[1] Guide rail fixing device for an elevator, comprising: a wall-side bracket (1) comprising a wall-side mounting plate section (13) and fixed to an elevator shaft, the elevator shaft comprising: a first wall surface (4) opposite a rear surface (21) of a guide rail (2); and a second wall surface (5) extending in a direction perpendicular to the rear surface (21) of the guide rail (2); and a rail-side support (3) comprising a rail-side mounting plate section (31) designed to overlap the wall-side mounting plate section (13) and allowing the guide rail (2) to be fixed thereto, wherein the wall-side mounting plate section (13) and the rail-side mounting plate section (31) each have a through-hole (131, 311) in which a fastening means (8) configured to fix the wall-side mounting plate section (13) and the rail-side mounting plate section (31) to each other is inserted along a horizontal plane, wherein the wall-side mounting plate section (13) and the rail-side mounting plate section (31) are arranged such that they extend in a direction perpendicular to the horizontal plane, and wherein the wall-side mounting plate section (13) and the rail-side mounting plate section (31) are arranged such that a contact surface between the wall-side mounting plate section (13) and the rail-side mounting plate section (31) is inclined at an angle other than a right angle, as seen from above, with respect to the rear surface (21) of the guide rail (2). [2] Guide rail fixing device for an elevator according to claim 1, wherein the through hole (131, 311) is designed as an elongated hole having a longitudinal direction along the horizontal plane.

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