JP2009091087A - Guide rail supporting structure of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an elevator car and/or a balance weight from derailing resulting from widening of the spacing of a pair of guide rails at their top end side by suppressing deflection of the top end side of any of the guide rails in the event of earthquake even in case the guide rail top ends are not secured to the wall or beam of the building. <P>SOLUTION: A guide rail supporting structure of elevator is equipped with a pair of guide rails 1 for elevator car arranged up and down and guiding the car 6 in elevation and sinking, where the uppermost fixing place to be secured to the wall or beam 5 of the building lies below the top elevating position of the car 6, and a coupling member 9 to tie together the two guide rails 1 in a position above the top elevating position of the car 6. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator guide rail support structure, and more particularly to an elevator guide rail support structure that can be applied when the upper end of the guide rail is not fixed to a wall or beam of a building.

  As described in Patent Document 1 below, the elevator is provided with a pair of car guide rails extending in the vertical direction and a pair of weight guide rails extending in the vertical direction. When the elevator is in operation, the car is raised and lowered along the guide rail for the car, and the counterweight is raised and lowered along the guide rail for the weight.

The car guide rail and the weight guide rail are fixed to a building wall or beam at a plurality of locations along the vertical direction, and the upper end portion is also fixed to the building wall or beam.
JP 11-157762 A

  However, depending on the structure of the building and the structure of the elevator, the upper end of the guide rail for the car and the upper end of the guide rail for the weight cannot be fixed to the wall or beam of the building. And can be in a cantilevered state. In addition, among the plurality of fixing points where these guide rails are fixed to the walls or beams of the building, the uppermost fixing point may be located below the highest rising position of the car or the balance weight. For example, this may be the case when an elevator is installed in an atrium part of a building.

  In such an elevator, the amount of deflection on the upper end side of the guide rail becomes large due to the influence of vibrations when an earthquake occurs and the action of loads during normal operation. In particular, when an earthquake occurs when the car or the balance weight is located above the uppermost fixed position of the guide rail, the load of the car or the counterweight is placed at a position above the uppermost fixed position of the guide rail. It acts, and the amount of bending of the upper end side of the guide rail is further increased. In addition, since the load of the car and the balance weight acts alternately on the pair of guide rails as the earthquake sways, the amount of bending of one guide rail is larger than the amount of bending of the other guide rail. Thereby, the space | interval of a pair of guide rail becomes large in the location above the uppermost fixed location, and a car and a balance weight may remove | deviate from a guide rail, and may derail.

  The present invention has been made to solve such a problem, and the purpose of the present invention is when an earthquake occurs or during normal operation even when the upper end of the guide rail is not fixed to the wall or beam of the building. Is to suppress the deflection of the upper end side of the guide rail and prevent the carriage and the counterweight from being removed due to the increase in the distance between the upper end sides of the pair of guide rails.

  The first feature according to the embodiment of the present invention is that in the guide rail support structure of the elevator, which is arranged in the vertical direction, guides the car so that it can be raised and lowered, and is fixed to the wall or beam of the building. A pair of car guide rails whose fixing points are located below the highest ascent position of the car; and a connecting member that connects the pair of car guide rails at a position above the highest ascent position of the car; Is.

  The second feature according to the embodiment of the present invention is that the elevator guide rail support structure is arranged in the vertical direction, guides the counterweight so that it can be raised and lowered, and is fixed to the wall or beam of the building. A pair of weight guide rails whose fixing points are positioned below the highest rising position of the counterweight; and a connecting member that connects the pair of weight guide rails at a position higher than the highest position of the counterweight. Is.

  The third feature of the embodiment of the present invention is that the elevator guide rail support structure is arranged in the vertical direction, guides the car so that it can be raised and lowered, and is fixed to the wall or beam of the building. A pair of car guide rails, which are fixed below the most elevated position of the car, are arranged in the up and down direction, guide the counterweight so that it can be raised and lowered, and are fixed to the walls or beams of the building. A pair of weight guide rails whose upper fixing points are located below the highest lifted position of the counterweight and a pair of car guide rails connected at a position higher than the highest lifted position of the car. 1 connection member, and a second connection member that connects the pair of weight guide rails at a position higher than the most elevated position of the counterweight, and one end of the first connection member and the second connection member of It is that in which the end is connected.

  ADVANTAGE OF THE INVENTION According to this invention, it can prevent that a cage | basket | car or a counterweight derails from the guide rail for cars, or the guide rail for weights.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
The elevator which concerns on the 1st Embodiment of this invention is installed in the atrium part of a building. In this embodiment, two elevators are installed next to each other. As shown in FIG. 1, the elevator guide rail support structure includes a pair of car guide rails 1 and a pair of weight guide rails 2 arranged along the wall surface of the building. The pair of car guide rails 1 and the pair of weight guide rails 2 face each other in parallel and are arranged in the vertical direction.

  A plurality of rail brackets 3 are fixed to the car guide rail 1 and the weight guide rail 2 at positions along the longitudinal direction, and these rail brackets 3 are fixed to a building beam 5 by a stopper 4. . A plurality of beams 5 are provided along the height direction of the building. The upper end portion of the car guide rail 1 and the upper end portion of the weight guide rail 2 extend to a position higher than the uppermost beam 5 among the plurality of beams 5, and the car guide rail 1 The upper end portion of the weight and the upper end portion of the weight guide rail 2 are not fixed to the wall or beam 5 of the building.

  An elevator car 6 is disposed between the pair of car guide rails 1, and a guide device 7 is provided on the car 6. The guide device 7 is engaged with the car guide rail 1 so as to be slidable in the vertical direction.

  The uppermost fixing point where the car guide rail 1 is fixed to the uppermost beam 5 via the uppermost rail bracket 3 is located below the highest raising position of the car 6. 2 shows a state in which the left car 6 is moved to the highest position, and the uppermost rail bracket 3 which is the uppermost fixing point where the car guide rail 1 is fixed to the beam 5 of the building is shown. , Located below the upper guide device 7.

  A counterweight 8 is disposed between the pair of weight guide rails 2, and a guide device (not shown) is provided on the counterweight 8. This guide device is engaged with the weight guide rail 2 so as to be slidable in the vertical direction.

  The uppermost fixing point where the weight guide rail 2 is fixed to the beam 5 via the rail bracket 3 is located below the highest rising position of the counterweight 8.

  One end of a first connecting member 9, which is a connecting member extending in the horizontal direction, is connected to the upper end of one car guide rail 1, and the first connection is connected to the upper end of the other car guide rail 1. The other end of the member 9 is connected. Thus, the upper ends of the pair of car guide rails 1 are connected by the first connecting member 9. The position at which the pair of car guide rails 1 are connected by the first connecting member 9 is not limited to the upper end of the car guide rail 1, but is the highest position of the car 6 (the left-side ride shown in FIG. 2). Any position above the position of the upper guide device 7 in the car 6 may be used. The first connecting member 9 is connected to the upper end of the car guide rail 1 by welding or bolting.

  The 1st connection member 9 should just have the intensity | strength which can maintain in the state which connected the pair of guide rails 1 for cages at the time of an earthquake occurrence, The shape is not limited. As the 1st connection member 9, steel material of H type, L type, flat shape, rod shape, and pipe shape can be used.

  One end of a second connecting member 10 that is a connecting member extending in the horizontal direction is connected to the upper end of one weight guide rail 2, and the second connecting member is connected to the upper end of the other weight guide rail 2. The other end of 10 is connected. Thereby, the upper ends of the pair of weight guide rails 2 are connected by the second connecting member 10. The position where the pair of weight guide rails 2 are connected by the second connecting member 10 is not necessarily limited to the upper end portion of the weight guide rail 2, and may be any position above the most elevated position of the counterweight 8. Good. The second connecting member 10 is connected to the upper end of the weight guide rail 2 by welding or bolting.

  The 2nd connection member 10 should just have the intensity | strength which can maintain the state which connected the pair of weight guide rails 2 at the time of an earthquake occurrence, and the shape is not limited. As the second connecting member 10, similarly to the first connecting member 9, an H-type, L-type, flat shape, rod shape, or pipe shape steel material can be used.

  In such a configuration, the movement of the car guide rail 1 and the weight guide rail 2 when an earthquake occurs will be described.

  The upper ends of the pair of car guide rails 1 are connected by the first connecting member 9, and when an earthquake occurs, the upper end sides of the pair of car guide rails 1 are synchronously swung in the same direction. For this reason, the vibrations of the earthquake are received by the pair of car guide rails 1 and the seismic strength of the car guide rails 1 is improved.

  Further, the pair of car guide rails 1 are synchronously swung in the same direction, so that the position of the car 6 at the time of the earthquake is higher than the uppermost fixed portion of the car guide rail 1 with respect to the beam 5. However, the load of the car 6 greatly acts on one of the car guide rails 1 due to the shaking of the earthquake, and the amount of bending of one car guide rail 1 becomes larger than the amount of bending of the other car guide rail 1. That doesn't happen. Accordingly, the distance between the upper end sides of the pair of car guide rails 1 is always maintained substantially constant, the distance between the upper end sides of the pair of car guide rails 1 is increased, and the car 6 is removed from the car guide rail 1. Is prevented.

  The same can be said for the weight guide rail 2 as with the car guide rail 1. That is, the upper ends of the pair of weight guide rails 2 are connected by the second connecting member 10, and when an earthquake occurs, the upper end sides of the pair of weight guide rails 2 are synchronously swung in the same direction. For this reason, the vibration of the earthquake is received by the pair of weight guide rails 2, and the seismic strength of the weight guide rails 2 is improved.

  Further, since the pair of weight guide rails 2 are synchronously swung in the same direction, the position of the counterweight 8 at the time of the earthquake is higher than the uppermost fixed portion of the weight guide rail 2 with respect to the beam 5. However, as the earthquake sways, the load of the counterweight 8 acts on one weight guide rail 2 greatly, and the amount of bending of one weight guide rail 2 becomes larger than the amount of bending of the other weight guide rail 2. That doesn't happen. Therefore, the distance between the upper end sides of the pair of weight guide rails 2 is always kept substantially constant, the distance between the upper end sides of the pair of weight guide rails 2 is increased, and the counterweight 8 is removed from the weight guide rail 2. Is prevented.

(Second Embodiment)
An elevator guide rail support structure according to a second embodiment of the present invention will be described with reference to FIG. Note that, in the second embodiment and subsequent embodiments, the same components as those of the previously described embodiments are denoted by the same reference numerals, and redundant descriptions are omitted.

  In the elevator guide rail support structure according to the second embodiment, as described in the first embodiment, the upper ends of the pair of car guide rails 1 are connected by the first connecting member 9, and a pair of weights is provided. The upper end of the guide rail 2 is connected by the second connecting member 10. Furthermore, the end of the 1st connection member 9 and the end of the 2nd connection member 10 are connected, and the connected 1st connection member 9 and the 2nd connection member 10 are L-shaped. The first connecting member 9 and the second connecting member 10 are connected by welding or bolting.

  In such a configuration, by connecting one end of the first connecting member 9 and one end of the second connecting member 10, the pair of car guide rails 1 and the pair of weight guide rails 2 are connected.

  For this reason, when an earthquake occurs, the upper end sides of the pair of car guide rails 1 and the upper end sides of the pair of weight guide rails 2 are synchronously swung in the same direction. Therefore, the vibration of the earthquake is received by the pair of car guide rails 1 and the pair of weight guide rails 2, and the seismic strength of the car guide rail 1 and the weight guide rail 2 is improved.

  When an earthquake occurs, as described in the first embodiment, the distance between the upper end sides of the pair of car guide rails 1 is always maintained substantially constant, and the upper end sides of the pair of weight guide rails 2 are maintained. The interval is always kept substantially constant. For this reason, it is possible to prevent the car 6 from being removed from the car guide rail 1 and the counterweight 8 from being removed from the weight guide rail 2.

(Third embodiment)
An elevator guide rail support structure according to a third embodiment of the present invention will be described with reference to FIG.

  In the elevator guide rail support structure according to the third embodiment, as described in the second embodiment, one end of the first connecting member 9 and one end of the second connecting member 10 are connected. Further, one end of the third connecting member 11 is connected to the other end of the first connecting member 9, and the other end of the third connecting member 11 is connected to the other end of the second connecting member 10.

  The connection of one end of the third connection member 11 to the other end of the first connection member 9 and the connection of the other end of the third connection member to the other end of the second connection member 10 are performed by welding or bolting. ing.

  Moreover, as the 3rd connection member, similarly to the 1st connection member 9 and the 2nd connection member 10, steel material of H type, L type, flat shape, rod shape, and pipe shape can be used. In consideration of the design when looking up from the landing on the top floor, it is preferable to use a tension rod as the third connecting member.

  In such a configuration, the first connecting member 9, the second connecting member 10, and the third connecting member 11 form a triangular truss structure. For this reason, the truss structure comprising the first connecting member 9, the second connecting member 10, and the third connecting member 11 can suppress the deflection of the car guide rail 1 and the weight guide rail 2 when an earthquake occurs. The seismic strength of the car guide rail 1 and the weight guide rail 2 can be improved.

  Further, as described in the first embodiment, when an earthquake occurs, the distance between the upper end sides of the pair of car guide rails 1 is always kept substantially constant, and the upper end sides of the pair of weight guide rails 2 The interval is always kept substantially constant. For this reason, it is possible to prevent the car 6 from being removed from the car guide rail 1 and the counterweight 8 from being removed from the weight guide rail 2.

(Fourth embodiment)
An elevator guide rail support structure according to a fourth embodiment of the present invention will be described with reference to FIG.

  In the elevator guide rail support structure according to the fourth embodiment, the backing material 12 is fixed to the rear surface (the surface not facing the car 6) on the upper end side of the car guide rail 1. The first connecting member 9 connected to the upper end portion of the car guide rail 1 is also connected to the upper end portion of the backing material 12. The first connecting member 9 is connected to the backing material 12 by welding or bolting.

  The backing material 12 is a member for improving the strength of the car guide rail 1 and is a steel material such as an H type, an L type, or a pipe shape, and has a thermal expansion coefficient substantially the same as that of the car guide rail 1. Things are used.

  In order to improve the strength of the weight guide rail 2, a backing material is fixed to the back surface on the upper end side of the weight guide rail 2. In this case, the second connecting member 10 connected to the upper end portion of the weight guide rail 2 is also connected to the upper end portion of the backing material.

  In such a configuration, the backing material 12 is fixed to the car guide rail 1, whereby the rigidity of the car guide rail 1 can be increased, and the car guide rail 1 bends when an earthquake occurs or during normal operation. The amount can be suppressed.

  Similarly, by fixing the backing material to the weight guide rail 2, the rigidity of the weight guide rail 2 can be increased, and the amount of deflection of the weight guide rail 2 when an earthquake occurs or during normal operation is suppressed. be able to.

  Further, as described in the first embodiment, when an earthquake occurs, the distance between the upper end sides of the pair of car guide rails 1 is always kept substantially constant, and the upper end sides of the pair of weight guide rails 2 The interval is always kept substantially constant. For this reason, it is possible to prevent the car 6 from being removed from the car guide rail 1 and the counterweight 8 from being removed from the weight guide rail 2.

(Fifth embodiment)
An elevator guide rail support structure according to a fifth embodiment of the present invention will be described with reference to FIG.

  In the elevator guide rail support structure according to the fifth embodiment, an upright column 13 serving as a holding member is provided in the vicinity of the car guide rail 1. The upright column 13 is fixed to the beam 5 positioned at the top of the beams 5 to which the car guide rail 1 is fixed via the rail bracket 3, and is substantially the same as the upper end portion of the car guide rail 1 upward. It is extended to the height position.

  The upright column 13 is in the vicinity of the car guide rail 1 where the largest suspension load is applied when the upright column 13 is not provided, for example, in the vicinity of the car guide rail 1 where the load of the hoisting machine in the machine room-less elevator is applied. It is preferable to provide it.

  The vertical pole 13 may be provided in the vicinity of the other car guide rail 1 or the weight guide rail 2 as necessary, or may be provided in the vicinity of all the car guide rails 1 or the weight guide rails 2. Good.

  The end portion side of the first connecting member 9 is fixed to the upper end portion of the pair of car guide rails 1 and the upper end portion of the upright column 13.

  Further, in the fifth embodiment, similarly to the second embodiment shown in FIG. 3, a second connecting the one end of the first connecting member 9 and the upper ends of the pair of weight guide rails 2 is performed. One end of the connecting member 10 is connected.

  In such a configuration, in the car guide rail 1 provided with the upright column 13 in the vicinity, the moment generated by the suspension load can be distributed and supported by the car guide rail 1 and the upright column 13. The strength of the guide rail 1 can be improved.

  When an earthquake occurs, the upper end side of the pair of car guide rails 1, the upper end side of the pair of weight guide rails 2, and the upper end side of the upright column 13 swing in the same direction in synchronization. Therefore, the vibration of the earthquake is received by the pair of car guide rails 1, the pair of weight guide rails 2, and the upright column 13, and the seismic strength of the car guide rail 1 and the weight guide rail 2 is improved. .

  Further, as described in the first embodiment, when an earthquake occurs, the distance between the upper end sides of the pair of car guide rails 1 is always kept substantially constant, and the upper end sides of the pair of weight guide rails 2 The interval is always kept substantially constant. For this reason, it is possible to prevent the car 6 from being removed from the car guide rail 1 and the counterweight 8 from being removed from the weight guide rail 2.

(Sixth embodiment)
An elevator guide rail support structure according to a sixth embodiment of the present invention will be described with reference to FIG.

  In the elevator guide rail support structure according to the sixth embodiment, when two or more elevators are provided adjacent to each other, the first connection member 9 provided in one elevator and the other elevator are provided. The first connecting member 9 is connected. The connection between one first connecting member 9 and another first connecting member 9 is performed by welding or a fastening bolt.

  Further, in the sixth embodiment, the first connecting member 9 and the second connecting member 10 are connected in each elevator, as in the second embodiment shown in FIG.

  In such a configuration, the car guide rails 1 provided in pairs in two elevators positioned adjacent to each other are connected by the first connecting member 9. For this reason, when an earthquake occurs, the upper ends of the two pairs of car guide rails 1 are synchronously swung in the same direction, and the earthquake vibration is received by the two pairs of car guide rails 1. Seismic strength is improved. Further, since the weight guide rails 2 provided in the individual elevators are connected to the first connecting member 9, the upper ends of the two pairs of car guide rails 1 and the two pairs of weight guides. The rail 2 swings in the same direction in synchronization with the upper end of the rail 2, and the earthquake vibration is received by the two pairs of the guide rails 1 for the car and the two pairs of the guide rails 2 for the weight. Strength is also improved.

  Further, as described in the first embodiment, when an earthquake occurs, the distance between the upper ends of the pair of car guide rails 1 in each elevator is always kept substantially constant, and the pair of weights in each elevator is used. The distance between the upper ends of the guide rails 2 is always kept substantially constant. For this reason, it is possible to prevent the car 6 from being removed from the car guide rail 1 and the counterweight 8 from being removed from the weight guide rail 2.

  In the sixth embodiment, when two elevators are located next to each other, the case where the first connecting members 9 used in the elevators are connected is described as an example. When elevators equal to or higher than one are located next to each other, the first connecting members 9 of those elevators may be connected.

(Seventh embodiment)
An elevator guide rail support structure according to a seventh embodiment of the present invention will be described with reference to FIG.

  In the elevator guide rail support structure according to the seventh embodiment, as described in the sixth embodiment shown in FIG. 7, the first connecting members 9 provided in adjacent elevators are connected to each other. In addition, one end of a tension rod 14 as a tension member is connected to both ends of the connected first connection member 9. The other end of the tension rod 14 is connected to the wall 15 of the building. Note that a second connecting member 10 is connected to the first connecting member 9.

  The tension rod 14 applies a horizontal direction tensile force to the first connecting member 9.

  In such a configuration, since the upper ends of the car guide rail 1 and the weight guide rail 2 are not fixed to a wall or a beam, the car guide rail 1 and the weight guide rail 2 are vertically moved in the event of an earthquake. An acting axial force is generated. If this axial force is transmitted to the pit via the car guide rail 1 and the weight guide rail 2, the pit floor may be damaged.

  Therefore, a tension rod 14 is provided to apply a horizontal tensile force to the first connecting member 9. Thereby, the axial force which acts on the guide rail 1 for cars and the guide rail 2 for weight at the time of an earthquake occurrence can be suppressed, and damage to the pit floor due to the action of the axial force can be prevented.

  Further, as described in the first embodiment, when an earthquake occurs, the distance between the upper ends of the pair of car guide rails 1 in each elevator is always kept substantially constant, and the pair of weights in each elevator is used. The distance between the upper ends of the guide rails 2 is always kept substantially constant. For this reason, it is possible to prevent the car 6 from being removed from the car guide rail 1 and the counterweight 8 from being removed from the weight guide rail 2.

  In the seventh embodiment, the case where the tension rod 14 is used as the tension member has been described as an example, but a tension wire may be used as the tension member.

  In the seventh embodiment, the case where the tensile force applied to the first connecting member 9 is in the horizontal direction has been described, but the direction in which the tensile force is applied is obliquely upward. Also good.

It is a plane which shows the guide rail support structure of the elevator which concerns on the 1st Embodiment of this invention. It is a side view which shows only one elevator. It is a top view which shows the guide rail support structure of the elevator which concerns on the 2nd Embodiment of this invention. It is a top view which shows the guide rail support structure of the elevator which concerns on the 3rd Embodiment of this invention. It is a top view which shows a part of guide rail support structure of the elevator which concerns on the 4th Embodiment of this invention. It is a top view which shows the guide rail support structure of the elevator which concerns on the 5th Embodiment of this invention. It is a top view which shows the guide rail support structure of the elevator which concerns on the 6th Embodiment of this invention. It is a top view which shows the guide rail support structure of the elevator which concerns on the 7th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Guide rail for cages 2 Guide rail for weights 5 Beam 6 Car cage 8 Balance weight 9 1st connection member (connection member)
10 Second connecting member (connecting member)
11 Third connecting member 12 Backing material 14 Tension member 15 Wall

Claims (7)

A pair of car guide rails that are arranged in the vertical direction, guide the car so that it can be raised and lowered, and the uppermost fixing part fixed to the wall or beam of the building is located below the highest ascent position of the car When,
A connecting member that connects a pair of the guide rails for the car at a position above the highest position of the car;
A guide rail support structure for an elevator, comprising: A pair of weight guide rails that are arranged in the vertical direction, guide the counterweight so that it can be raised and lowered, and the uppermost fixed portion fixed to the wall or beam of the building is located below the highest position of the counterweight When,
A connecting member that connects the pair of weight guide rails at a position above the most elevated position of the counterweight;
A guide rail support structure for an elevator, comprising: A pair of car guide rails that are arranged in the vertical direction, guide the car so that it can be raised and lowered, and the uppermost fixing part fixed to the wall or beam of the building is located below the highest ascent position of the car When,
A pair of weight guide rails that are arranged in the vertical direction, guide the counterweight so that it can be raised and lowered, and the uppermost fixed portion fixed to the wall or beam of the building is located below the highest position of the counterweight When,
A first connecting member that connects a pair of the car guide rails at a position higher than the highest position of the car;
A second connecting member that connects the pair of weight guide rails at a position above the most elevated position of the counterweight;
With
An elevator guide rail support structure, wherein one end of the first connecting member and one end of the second connecting member are connected.   The elevator guide rail support structure according to claim 3, further comprising a third connecting member that connects the other end of the first connecting member and the other end of the second connecting member.   The guide rail support structure for an elevator according to any one of claims 1 to 4, wherein a backing material is attached to at least one of the guide rail for the car or the guide rail for the weight.   6. The connecting member provided in one elevator and the connecting member provided in another elevator located adjacent to the elevator are connected to each other. Guide rail support structure for elevators as described.   2. A tension member that applies a tensile force in a horizontal direction or an obliquely upward direction to the connection member is connected between both ends of the connection member and a wall or a beam of a building. The guide rail support structure of the elevator as described in any one of thru | or 6.

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