Elevator lifting support device

Abstract

To provide an elevator lifting support device capable of lifting an object more stably.SOLUTION: A support frame 40 is supported horizontally by a first support column 21 and a second support column 22 between a first guide rail 11 and a second guide rail 12. The support frame 40 has a pair of first beams 41, a pair of second beams 42, and a pair of hanging base portions 43. When viewed from directly above a hoistway 10, the pair of first beams 41 are arranged at intervals in a direction along a rail center line C so as to intersect the rail center line C. The pair of second beams 42 are respectively installed between the pair of first beams 41 on both sides of the rail center line C.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a lifting support apparatus for an elevator. Background Art

[0002] In a conventional jig for replacing a hoisting machine of an elevator, a beam member is disposed between upper ends of a pair of guide rails. The beam member is provided with a pair of pulleys. A wire rope is wound around the pair of pulleys. One end of the wire rope is connected to the hoisting machine. The other end of the wire rope is connected to one guide rail of the pair of guide rails. A chain block is provided in the middle of the wire rope (see, for example, Patent Document 1). Prior Art Documents Patent Documents

[0003] Patent Document 1 Japanese Patent No. 4260502 Summary of the Invention Problem to be Solved by the Invention

[0004] In the conventional jig for replacing a hoisting machine as described above, the pair of pulleys are provided on the beam member installed between the upper ends of the pair of guide rails. The hoisting machine is suspended by one wire rope wound around the pair of pulleys. Therefore, the hoisting machine may swing in a direction toward or away from the guide rail, which may cause the hoisting machine to collide with the guide rail.

[0005] The present disclosure has been made to solve the problems described above, and an object of the present disclosure is to obtain an elevator lifting support apparatus that can lift a lifted object more stably. Means for Solving the Problem

[0006] The elevator lifting support device according to this disclosure comprises a first support column attached to the upper end of a first guide rail along the first guide rail, a first column mounting fixture for attaching the first support column to the first guide rail, a second support column attached to the upper end of a second guide rail along the second guide rail, a second column mounting fixture for attaching the second support column to the second guide rail, and a rectangular support frame body supported by the first support column and the second support column between the first guide rail and the second guide rail, wherein the support frame body has a pair of first beams that are spaced apart from each other and intersect a straight line in the direction along the straight line connecting the first guide rail and the second guide rail when viewed from directly above the hoistway, a pair of second beams that are respectively erected between the pair of first beams on both sides of the straight line, and a pair of suspension parts provided on each pair of second beams to which a lifting device is connected. [Effects of the Invention]

[0007] According to the elevator lifting support device of this disclosure, the lifted object can be lifted more stably. [Brief explanation of the drawing]

[0008] [Figure 1] This is a plan view showing the lifting and support device for an elevator according to Embodiment 1. [Figure 2] Figure 1 is a side view showing the lifting and support device. [Figure 3] Figure 1 is a front view showing the lifting and support device. [Figure 4] This is a cross-sectional view of the first guide rail along the line IV-IV in Figure 3. [Figure 5] This is a cross-sectional view along the VV line in Figure 3. [Figure 6] Figure 2 is an explanatory diagram showing how an object is lifted using a pair of lifting devices. [Figure 7] This is an explanatory diagram showing the lifted object in Figure 6 being further raised. [Figure 8] This is a plan view showing the lifting and support device for an elevator according to Embodiment 2. [Figure 9]This is a side view showing an elevator lifting and support device according to Embodiment 3. [Modes for carrying out the invention]

[0009] The embodiments will be described below with reference to the drawings. Embodiment 1. Figure 1 is a plan view showing the lifting support device of an elevator according to Embodiment 1. Figure 2 is a side view showing the lifting support device of Figure 1, viewed along arrow II in Figure 1. Figure 3 is a front view showing the lifting support device of Figure 1, viewed along arrow III in Figure 1. That is, Figure 3 is a view of the lifting support device of Figure 1 from the landing side.

[0010] A first guide rail 11 and a second guide rail 12 are installed within the elevator shaft 10. The elevator car (not shown) moves up and down within the elevator shaft 10, guided by the first guide rail 11 and the second guide rail 12. In other words, the first guide rail 11 and the second guide rail 12 are elevator car guide rails.

[0011] A lifting support device 20 is installed at the top of the elevator shaft 10. The lifting support device 20 is installed at the top of the elevator shaft 10 when the elevator is installed, when the elevator is renovated, when elevator shaft equipment is replaced, etc.

[0012] The lifting support device 20 includes a first support column 21, a second support column 22, a first column mounting bracket 31, a second column mounting bracket 32, a rectangular support frame 40, a pair of first bracing members 51, and a pair of second bracing members 52.

[0013] The first support column 21 is attached to the upper end of the first guide rail 11 along the first guide rail 11 by a first column mounting bracket 31. The second support column 22 is attached to the upper end of the second guide rail 12 along the second guide rail 12 by a second column mounting bracket 32.

[0014] Each of the first support column 21 and the second support column 22 includes a column main body 23 and a backing plate 24. The backing plate 24 is fixed to an upper end of the column main body 23.

[0015] The backing plate 24 of the first support column 21 is abutted against an upper end surface of the first guide rail 11. A load applied to the first support column 21 is transmitted to the first guide rail 11 via the backing plate 24.

[0016] The backing plate 24 of the second support column 22 is abutted against an upper end surface of the second guide rail 12. A load applied to the second support column 22 is transmitted to the second guide rail 12 via the backing plate 24.

[0017] Each of the first column mounting fixture 31 and the second column mounting fixture 32 includes an upper mounting fixture 33 and a lower mounting fixture 34.

[0018] The upper mounting fixture 33 of the first column mounting fixture 31 is provided between the first guide rail 11 and an upper end portion of the column main body 23. The lower mounting fixture 34 of the first column mounting fixture 31 is provided between the first guide rail 11 and a lower end portion of the column main body 23.

[0019] The upper mounting fixture 33 of the second column mounting fixture 32 is provided between the second guide rail 12 and an upper end portion of the column main body 23. The lower mounting fixture 34 of the second column mounting fixture 32 is provided between the second guide rail 12 and a lower end portion of the column main body 23.

[0020] As shown in Fig. 1, the first column mounting fixture 31 mounts the first support column 21 to the first guide rail 11 without protruding from a back surface of the first guide rail 11. Further, the second column mounting fixture 32 mounts the second support column 22 to the second guide rail 12 without protruding from a back surface of the second guide rail 12.

[0021] The support frame body 40 is horizontally supported by the first support column 21 and the second support column 22 between the first guide rail 11 and the second guide rail 12.

[0022] Furthermore, the support frame 40 includes a pair of first beams 41, a pair of second beams 42, and a pair of suspension points 43.

[0023] In the following, as shown in Figure 1, the straight line connecting the center of the first guide rail 11 and the center of the second guide rail 12 when viewing the elevator shaft 10 from directly above will be referred to as the rail centerline C.

[0024] When the elevator shaft 10 is viewed from directly above, the pair of first beams 41 are spaced apart from each other in the direction along the rail centerline C, and are arranged so as to intersect the rail centerline C. Furthermore, the pair of first beams 41 are perpendicular to the rail centerline C. That is, the pair of first beams 41 are parallel to each other.

[0025] A pair of second beams 42 are erected between a pair of first beams 41 on both sides of the rail centerline C. Furthermore, a pair of second beams 42 are erected between the ends of the pair of first beams 41. Also, each pair of second beams 42 is positioned parallel to the rail centerline C. In other words, the pair of second beams 42 are positioned parallel to each other and perpendicular to the pair of first beams 41.

[0026] A pair of suspension points 43 are each provided on a pair of second beams 42. As shown in Figure 2, a pair of lifting devices 13 are each connected to a pair of suspension points 43 and suspended from the pair of suspension points 43 into the elevator shaft 10. For example, chain blocks are used as each lifting device 13.

[0027] The load on the pair of lifting devices 13 is supported by the support frame 40. In Figures 1 and 3, the pair of lifting devices 13 are omitted. The pair of suspension points 43 are each slidable along the pair of second beams 42 in the longitudinal direction of the pair of second beams 42.

[0028] A pair of first bracing members 51 are connected diagonally to the first support column 21 between the first support column 21 and the support frame 40. The upper end of each first bracing member 51 is connected to one of the pair of first beams 41 via a first connecting member 53.

[0029] A pair of second bracing members 52 are connected diagonally to the second support column 22 between the second support column 22 and the support frame 40. The upper end of each second bracing member 52 is connected to the other of the pair of first beams 41 via a second connecting member 54.

[0030] Figure 4 is a cross-sectional view of the first guide rail 11 along the line IV-IV in Figure 3. The cross-sectional configuration of the second guide rail 12 is the same as that of the first guide rail 11.

[0031] The first guide rail 11 has a fixed portion 11a and a protruding portion 11b. The fixed portion 11a is the part that is fixed to the hoistway wall. The protruding portion 11b is the part that protrudes from the center of the fixed portion 11a toward the opposite side of the hoistway wall, i.e., toward the elevator car.

[0032] The protruding portion 11b has a tip portion 11c and a constricted portion 11d. The tip portion 11c is the end of the protruding portion 11b opposite to the fixing portion 11a. The tip portion 11c is inserted into the groove of the upper mounting fixture 33.

[0033] The constricted portion 11d connects the tip portion 11c and the fixed portion 11a. The dimensions of the constricted portion 11d in the direction perpendicular to the rail centerline C are smaller than the dimensions of the tip portion 11c in the direction perpendicular to the rail centerline C. In other words, the constricted portion 11d is the narrowed part of the protruding portion 11b.

[0034] Figure 5 is a cross-sectional view along the VV line in Figure 3. The lower mounting fixture 34 has a pair of latches 35 and a pair of bolts 36. Each pair of latches 35 is rotatably mounted relative to the column body 23. Each bolt 36 is screwed into the column body 23.

[0035] As shown in Figure 5, when the bolts 36 are tightened with the tip of each latch 35 in contact with the constricted portion 11d, the pair of latches 35 hook onto the constricted portion 11d and clamp it. The configuration of the lower mounting bracket 34 in the second column mounting bracket 32 ​​is the same as in Figure 5.

[0036] Figure 6 is an explanatory diagram showing how the lifting device 13 in Figure 2 lifts the object, and corresponds to the cross-sectional view along the line VI-VI in Figure 1. Figure 7 is an explanatory diagram showing the object in Figure 6 being lifted even further.

[0037] The lifting object 14 is, for example, a hoisting machine. The hoisting machine is a drive device that raises and lowers the cage. Chains are pulled out from each lifting device 13, and the hooks at the ends of the chains are attached to the lifting object 14. From this state, the chains are wound up, and the lifting object 14 is lifted into the elevator shaft 10.

[0038] In this type of elevator lifting support device 20, a pair of suspension points 43 are provided on a pair of second beams 42 in a rectangular support frame 40. This allows for more stable lifting of the object 14 and suppresses contact between the object 14 and the first guide rail 11 and the second guide rail 12 during lifting.

[0039] Furthermore, since a rectangular support frame 40 is used, the lifted object 14 can be lifted until its upper end is above the lower end of the support frame 40, as shown in Figure 7.

[0040] Furthermore, the support frame 40 is positioned between the first guide rail 11 and the second guide rail 12. The first column mounting bracket 31 does not protrude from the back of the first guide rail 11, and the second column mounting bracket 32 ​​does not protrude from the back of the second guide rail 12.

[0041] Therefore, the lifting support device 20 can be installed at the top of the elevator shaft 10 without being affected by the layout of elevator shaft equipment such as rail brackets.

[0042] Furthermore, each of the first column mounting fixture 31 and the second column mounting fixture 32 has a pair of latches 35. The pair of latches 35 are hooked onto the constricted portion 11d and clamp onto the constricted portion 11d.

[0043] Therefore, the compact configuration allows the first support column 21 to be firmly attached to the first guide rail 11, and the second support column 22 to be firmly attached to the second guide rail 12. This prevents the first support column 21 from falling off the first guide rail 11, and the second support column 22 from falling off the second guide rail 12.

[0044] Furthermore, the pair of suspension points 43 are each slidable along the pair of second beams 42. This allows for easy adjustment of the position of the pair of lifting devices 13, enabling more stable lifting of the object 14.

[0045] Furthermore, a pair of first bracing members 51 are provided between the first support column 21 and the support frame 40. Also, a pair of second bracing members 52 are provided between the second support column 22 and the support frame 40.

[0046] Therefore, the load of the lifted object 14 can be adequately supported while reducing the strength of the support frame 40.

[0047] Furthermore, the backing plate 24 on the first support column 21 is in contact with the upper end surface of the first guide rail 11. Also, the backing plate 24 on the second support column 22 is in contact with the upper end surface of the second guide rail 12.

[0048] Therefore, the load of the lifted object 14 can be supported by the first guide rail 11 and the second guide rail 12, and the configuration of the lifting support device 20 can be simplified.

[0049] Embodiment 2. Next, Figure 8 is a plan view showing the elevator lifting support device 20 according to Embodiment 2. Each of the pair of second beams 42 in Embodiment 2 is provided with a plurality of connecting holes 42a. The spacing between the pair of first beams 41 can be changed by selecting a plurality of connecting holes 42a to be used from among the plurality of connecting holes 42a.

[0050] In other words, by selecting which connecting hole 42a each first beam 41 is connected to each second beam 42, the spacing between the pair of first beams 41 in the direction parallel to the rail centerline C can be changed.

[0051] Other configurations in Embodiment 2 are the same as those in Embodiment 1.

[0052] In this type of lifting support device 20, the spacing between the pair of first beams 41 can be changed. Therefore, a common lifting support device 20 can be used for multiple elevators with different installation spacings between the first guide rail 11 and the second guide rail 12.

[0053] Furthermore, the spacing between the pair of first beams 41 can be changed by selecting multiple connecting holes 42a from among a plurality of connecting holes 42a. Therefore, the spacing between the pair of first beams 41 can be changed with a simple configuration.

[0054] In the second embodiment, instead of multiple connecting holes 42a, multiple elongated holes along the longitudinal direction of each second beam 42 may be provided in each second beam 42. This allows for finer adjustment of the spacing between the pair of first beams 41.

[0055] Furthermore, gripping portions for gripping the second beam 42 may be provided at both ends of each first beam 41. The distance between the pair of first beams 41 may be changed by changing the gripping position of each gripping portion on the second beam 42.

[0056] Embodiment 3. Next, Figure 9 is a side view showing the elevator lifting support device 20 according to Embodiment 3. In Embodiment 3, each of the first support column 21 and the second support column 22 has an additional column 25 in addition to the column body 23 and the backing plate 24.

[0057] The additional column 25 is connected to the lower end of the column body 23 by, for example, multiple bolts (not shown).

[0058] The lower mounting bracket 34 of the first column mounting bracket 31 is provided between the first guide rail 11 and the lower end of the additional column 25. The lower mounting bracket 34 of the second column mounting bracket 32 ​​is provided between the second guide rail 12 and the lower end of the additional column 25.

[0059] Other configurations in Embodiment 3 are the same as those in Embodiment 1 or Embodiment 2.

[0060] In this type of lifting support device 20, an additional column 25 is connected to the lower end of the column body 23. This reduces the bending load on the first guide rail 11 and the second guide rail 12. As a result, it becomes possible to lift heavier objects 14.

[0061] Note that the lifting object 14 is not limited to a hoisting machine; for example, it could be a control panel.

[0062] Although preferred embodiments have been described in detail above, the invention is not limited to the embodiments described above, and various modifications and substitutions can be made to the embodiments described above without departing from the scope of the claims.

[0063] The various aspects of this disclosure are summarized below as an appendix.

[0064] (Note 1) A first support column is attached to the upper end of the first guide rail along the first guide rail, A first column mounting device for attaching the first support column to the first guide rail, A second support column is attached to the upper end of the second guide rail along the second guide rail, A second column mounting fixture for attaching the second support column to the second guide rail, and A rectangular support frame is supported between the first guide rail and the second guide rail by the first support column and the second support column. Equipped with, The aforementioned support frame is When viewing the elevator shaft from directly above, a pair of first beams are positioned at a distance from each other in the direction along the straight line connecting the first guide rail and the second guide rail, and intersect the said straight line, A pair of second beams are erected between the pair of first beams on both sides of the aforementioned straight line, Each of the pair of second beams is provided with a pair of suspension points to which a lifting device is connected. A lifting and supporting device for elevators that has [a certain feature]. (Note 2) The first column mounting bracket attaches the first support column to the first guide rail without protruding from the back surface of the first guide rail. The elevator lifting support device described in Appendix 1, wherein the second column mounting fixture attaches the second support column to the second guide rail without protruding from the back surface of the second guide rail. (Note 3) The first guide rail and the second guide rail are, A fixing part that is fixed to the hoistway wall, The protruding portion that protrudes from the aforementioned fixed portion and It has, The aforementioned protrusion is The tip and, The constricted portion connecting the aforementioned tip and the aforementioned fixing portion It has, The dimensions of the constricted portion in the direction perpendicular to the straight line are smaller than the dimensions of the tip portion in the direction perpendicular to the straight line. Each of the first column mounting fixture and the second column mounting fixture is, The lifting support device for an elevator as described in Appendix 2, having a pair of latches that hook onto the constricted portion and clamp the constricted portion. (Note 4) The lifting support device for an elevator according to any one of the appendices 1 to 3, wherein the pair of suspension points are each slidable along the pair of second beams. (Note 5) Between the first support column and the support frame, there is a first diagonal brace member connected diagonally to the first support column, and A second diagonal brace member is connected diagonally to the second support column between the second support column and the support frame. A lifting and supporting device for an elevator as described in any one of the appendices 1 to 4, further comprising the above. (Note 6) A lifting support device for an elevator as described in any one of the appendices 1 to 5, wherein the spacing between the pair of first beams is adjustable. (Note 7) Each of the pair of second beams is provided with multiple connecting holes. The lifting support device for an elevator as described in Appendix 6, wherein the spacing between the pair of first beams can be changed by selecting a plurality of connecting holes to be used from among the plurality of connecting holes. (Note 8) Each of the first support column and the second support column is: The main pillar and The backing plate fixed to the upper end of the column body and It has, The backing plate on the first support column is placed against the upper end surface of the first guide rail, The backing plate in the second support column is applied to the upper end surface of the second guide rail in the lifting support device for the elevator according to any one of the items from Appendix 1 to Appendix 7. (Note 9) Each of the first support column and the second support column is: Additional column connected to the lower end of the main column body A lifting and supporting device for an elevator as described in Appendix 8, further comprising the features described above. [Explanation of symbols]

[0065] 11 First guide rail, 12 Second guide rail, 13 Lifting device, 20 Lifting support device, 21 First support column, 22 Second support column, 23 Column body, 24 Backing plate, 25 Additional column, 31 First column mounting bracket, 32 Second column mounting bracket, 35 Latch, 40 Support frame, 41 First beam, 42 Second beam, 43 Suspension part, 51 First bracing member, 52 Second bracing member.

Claims

1. A first support column is attached to the upper end of the first guide rail along the first guide rail, A first column mounting device for attaching the first support column to the first guide rail, A second support column is attached to the upper end of the second guide rail along the second guide rail, A second column mounting device for attaching the second support column to the second guide rail, and A rectangular support frame is supported between the first guide rail and the second guide rail by the first support column and the second support column. Equipped with, The aforementioned support frame is When viewing the elevator shaft from directly above, a pair of first beams are positioned at a distance from each other in the direction along the straight line connecting the first guide rail and the second guide rail, and intersect the said straight line, A pair of second beams are erected between the pair of first beams on both sides of the aforementioned straight line, Each of the pair of second beams is provided with a pair of suspension points to which a lifting device is connected. A lifting and supporting device for elevators that has [a certain feature].

2. The first column mounting bracket attaches the first support column to the first guide rail without protruding from the back surface of the first guide rail. The elevator lifting support device according to claim 1, wherein the second column mounting fixture does not protrude from the back surface of the second guide rail, and the second support column is attached to the second guide rail.

3. Each of the first guide rail and the second guide rail is, A fixing part that is fixed to the hoistway wall, The protruding portion that protrudes from the aforementioned fixed portion and It has, The aforementioned protrusion is The tip and, The constricted portion connecting the aforementioned tip and the aforementioned fixing portion It has, The dimensions of the constricted portion in the direction perpendicular to the straight line are smaller than the dimensions of the tip portion in the direction perpendicular to the straight line. Each of the first column mounting fixture and the second column mounting fixture is, The elevator lifting support device according to claim 2, having a pair of latches that hook onto the constricted portion and clamp the constricted portion.

4. The elevator lifting support device according to any one of claims 1 to 3, wherein the pair of suspension points are each slidable along the pair of second beams.

5. Between the first support column and the support frame, there is a first diagonal brace member connected diagonally to the first support column, and A second diagonal brace member is connected diagonally to the second support column between the second support column and the support frame. A lifting and supporting device for an elevator according to any one of claims 1 to 3, further comprising the above.

6. The elevator lifting support device according to any one of claims 1 to 3, wherein the spacing between the pair of first beams can be changed.

7. Each of the pair of second beams is provided with multiple connecting holes. The elevator lifting support device according to claim 6, wherein the spacing between the pair of first beams can be changed by selecting a plurality of connecting holes to be used from among the plurality of connecting holes.

8. Each of the first support column and the second support column is, The main pillar and The backing plate fixed to the upper end of the column body and It has, The backing plate on the first support column is placed against the upper end surface of the first guide rail, The lifting support device for an elevator according to any one of claims 1 to 3, wherein the backing plate on the second support column is in contact with the upper end surface of the second guide rail.

9. Each of the first support column and the second support column is, Additional column connected to the lower end of the main column body The elevator lifting and support device according to claim 8, further comprising the above.

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