JP6517498B2 - escalator - Google Patents

Description

  The present invention relates to an escalator suitable to be installed, for example, between different buildings or on lower floors of upper and lower seismic isolation devices.

  When installing an escalator over two buildings, the relative displacement between the two buildings during an earthquake becomes very large, and a structure that supports the escalator so as to be able to follow such a large deformation is essential. In addition, the same applies when installing an escalator across the upper and lower floors of the seismic isolation system in an intermediate seismic isolation building, and it is essential to cope with interlayer displacement (interlayer displacement between upper and lower floors of seismic isolation apparatus) during an earthquake. Absent.

  Conventionally, regarding the behavior at the time of earthquake, although the escalator could be made to cope with small deformation by providing a loose hole in the support part of the escalator, this method can not cope with large deformation. Then, although it is possible to connect an escalator and a building with a wire, a chain, etc. as a fall prevention measure of the escalator at the time of an earthquake, this method does not become a fundamental solution to large deformation.

  Here, in Patent Document 1, when two floors are communicably connected by the escalator, the supporting members 51 and 52 for supporting the both ends of the escalator and the supports 53 and 54 of the respective floors are provided. It is disclosed that a pivoting mechanism 55 is provided, and a roller 56 is provided at the tip of one of the support members 52, and one end of the escalator is placed on the roller 56 (FIGS. 6A and 6B). )reference). According to this structure, even if one of the two floors is a non-base-isolated structure and the other is a base-isolated structure, it is possible to absorb to some extent the relative displacement occurring between both floors.

Patent No. 4147623 gazette

  However, in the escalator described in Patent Document 1, due to the structure in which one end of the escalator is placed on the roller 56 provided at the tip of the support member 52, the absorbable span fluctuation is limited, and large deformation during large earthquakes and the like is caused. There is a risk that the response will be inadequate.

  The present invention has been made in consideration of the above-mentioned matters, and an object thereof is to provide an escalator capable of coping with large deformation during large earthquakes and the like.

In order to achieve the above object, an escalator according to the present invention is an escalator provided across two floor portions positioned across a blow-through space and also vertically separated, and at both ends of the escalator, around the vertical axis Each of the pivoting mechanisms is attached to one of the pivoting mechanisms, and one of the pivoting mechanisms is movable on a pair of rails extending in the longitudinal direction of the escalator and projecting into the blowout space from the side of one of the floor portions Attached to the escalator support member, the other of the pivoting mechanism is attached to the other floor portion, the pair of rails extend to a position sandwiching the escalator from the left and right, and the escalator support member is viewed in plan It extends in a direction perpendicular to the longitudinal direction of the escalator, and is disposed on the end of the escalator (claim 1).

In the above escalator, the pair of rails may be cantilevers extending from the side of the one floor portion (claim 2).

  According to the present invention, it is possible to obtain an escalator capable of coping with large deformation during a large earthquake or the like.

  That is, in the escalator of the invention according to each claim of the present application, the relative displacement of the two floor portions in the X direction (longitudinal direction of the escalator) can be absorbed by the sliding support of the escalator support member by a pair of rails. In addition, relative displacement of the two floor portions in the Y direction (direction orthogonal to the X direction in plan view) can be absorbed by the rotational support by the two rotation mechanisms. And, by the rocking absorption by the two rotation mechanisms, it is possible to keep the necessary clearance (gap) between the escalator and the two floor parts small, and it is also possible to eliminate the need for providing the expansion joint on the handrail. . In addition to this, by appropriately determining the length of the pair of rails that bear the sliding support, it becomes easy to cope with large deformation.

In the escalator according to the first aspect of the present invention, the rails and the escalator support member can be prevented from protruding below the ceiling.

It is a top view which shows roughly the structure of the escalator which concerns on one embodiment of this invention. It is the sectional view on the AA line in FIG. It is a longitudinal cross-sectional view which expands and shows the principal part of the said escalator. It is a perspective view expanding and showing the important section of the escalator. It is a longitudinal cross-sectional view which expands and shows the principal part of the comparative example of the said escalator. (A) is a longitudinal cross-sectional view which shows schematic structure of the conventional escalator, (B) is a BB sectional drawing of (A).

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1 and FIG. 2, the escalator 1 according to the present embodiment is provided across two floor portions 3 and 4 which are located across the air gap space 2 and are also vertically separated. In the present example, the two floor parts 3 and 4 are provided in different buildings. In addition, the escalator 1 of the present embodiment includes a truss, a driving device for moving handrails, a truss 1A incorporating a speed governor, a safety device and the like, and the escalator 1 of this embodiment is of a known structure. Can.

  The both ends of the escalator 1 are rotatably supported, and one of them is also slide-supported, so that it is possible to follow the displacement of the building in the X and Y directions.

  If it explains in full detail, first, the rotation mechanism 5 which can be rotated around a vertical axis (vertical axis) will be attached to the both ends of the escalator 1 (both ends of the truss 1A of the escalator 1, respectively). Here, as the rotation mechanism 5, a sliding bearing device or a bearing mechanism (for example, a thrust bearing) can be used, and in this example, a pillar slide shoe made by Nippon Pillar Industrial Co., Ltd. is used.

  Among the both ends of the escalator 1, at the end (lower end) on the side facing the floor 4, as shown in FIG. 4 (see also FIGS. 1 to 3), an attachment member 6 such as an L-shaped bracket is An escalator support member 7 made of, for example, I-shaped steel, which is attached and which extends in a direction orthogonal to the longitudinal direction of the escalator 1 in a plan view, is disposed therebelow. The mounting member 6 and the escalator support member 7 are connected by the turning mechanism 5 so as to be relatively rotatable around the vertical axis. Here, the rotation mechanism 5 is separated into the upper collar 5A and the lower collar 5B, and the upper collar 5A is rotatable around the vertical axis with respect to the lower collar 5B, and the upper collar 5A is the mounting member 6 And the lower iron 5B is fixed to the escalator support member 7.

  As shown in FIG. 4, the escalator support member 7 is movable on a pair of rails 8 which project from the side of the floor 4 into the blowout space 2 and extend in the longitudinal direction of the escalator 1. It is a cantilever that exhibits a T-shaped steel piled on an I-shaped steel, and on its upper surface is a sliding bearing plate for slidably supporting the escalator support member 7 (for example, Pillar Florogold manufactured by Nippon Pillar Industries Ltd. (PILLAR No. 4801)) 9 is welded (fixed). Further, in order to prevent the escalator support member 7 from falling off from the pair of rails 8, for example, a substantially disc-like dropout preventing member 10 made of steel is attached near both ends of the lower surface of the escalator support member 7. .

  Among the both ends of the escalator 1, as shown in FIG. 2, an attachment member 6 such as an L-shaped bracket is attached to the end (upper end) on the side facing the floor 3, and this attachment 6 It is connected to the floor 3 via the moving mechanism 5.

  Then, for example, an expansion joint 11 having a known structure may be installed at the connection portion between the finished surface of the floor portions 3 and 4 and the escalator 1 (see FIG. 3). Similarly, an expansion joint may be installed in the joint portion with the escalator 1, or the gap may be covered with a building material such as mohair.

  In the support structure of the escalator configured as described above, the relative displacement of the floor portions 3 and 4 in the X direction can be absorbed by the sliding support of the escalator support member 7 by the pair of rails 8. Further, the relative displacement of the floor portions 3 and 4 in the Y direction can be absorbed and absorbed by the rotational support by the two rotation mechanisms 5. Further, it is possible to reduce the necessary clearance (gap) between the escalator 1 and the floor portions 3 and 4 by the locking absorption by the two pivoting mechanisms 5, and in addition, the clearance (handrail distance) It is possible to reduce the size to 100 mm or less and to eliminate the need for providing an expansion joint on the handrail. In addition to this, by appropriately determining the length of the pair of rails 8 which bear the sliding support, it becomes easy to cope with large deformation. The movement amount of the escalator 1 in the X direction can be calculated based on an assumed earthquake or the like, and the rail 8 may have a length that can correspond to the range.

  Here, as shown in FIG. 5, if the pair of rails 8 extends downward of the escalator 1, the pair of rails 8 and the escalator support member 7 protrude below the ceiling 12, and this In the case of changing the structure of the truss 1A in order to eliminate such thrust, there arises a disadvantage that the existing truss 1A can not be used. However, in the present embodiment, since the pair of rails 8 extend to a position sandwiching the escalator 1 (truss 1A) from the left and right, and the escalator support member 7 is slidably supported by the pair of rails 8 It is possible to prevent the rails 8 and the escalator support member 7 from protruding downward, and in this case, the above-mentioned inconvenience which is difficult to avoid does not occur in the comparative example shown in FIG.

  Furthermore, if the escalator support member 7 is disposed below the truss 1A and the escalator support member 7 is slidably supported by the pair of rails 8 as shown in FIG. In the present embodiment, since the escalator support member 7 is disposed not on the lower side of the truss 1A but on the end side, the rail 8 can be further shortened.

  The present invention is not limited to the above embodiment, and it is needless to say that the present invention can be modified in various ways without departing from the scope of the present invention. For example, the following modifications can be mentioned.

  Although the escalator 1 is provided over the floor portions 3 and 4 of different buildings in the above embodiment, the present invention is not limited to this. For example, the escalator 1 may be provided over different floors of the same building. It is also possible to provide the escalator 1 over the lower floors above and below the seismic isolation device in the building of

  In the above embodiment, the rails 8 and the like for sliding support are provided on the lower floor 4 side among the floor parts 3 and 4, but these may be provided on the high floor 3 side.

  In the above embodiment, as shown in FIG. 4, in order to prevent the escalator support member 7 from falling off from the pair of rails 8, the falling-off preventing member 10 is provided. Alternatively, other drop-off prevention means may be used.

  Needless to say, the above-described modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 Escalator 1A Truss 2 Spraying space 3 Floor 4 Floor 5 Rotation mechanism 5A Upper lever 5B Lower lever 6 Mounting member 7 Escalator support member 8 Rail 9 Sliding bearing plate 10 Fall prevention member 11 Expansion joint 12 Ceiling 51 Support member 52 Support member 53 Support base 54 Support base 55 Rotating mechanism 56 Roller

Claims (2)

It is an escalator which is provided across two floor portions which are located on both sides of a blowout space and which are also separated up and down,
At each end of the escalator, a pivoting mechanism capable of pivoting about a vertical axis is attached,
One of the pivoting mechanisms is attached to an escalator support member movable on a pair of rails extending in the longitudinal direction of the escalator and projecting into the blowout space from the side of one of the floor portions,
The other of the pivoting mechanisms is attached to the other floor ,
The pair of rails extend to a position sandwiching the escalator from the left and right,
The escalator support member extends in a direction orthogonal to the longitudinal direction of the escalator in a plan view, and is disposed on the end of the escalator. The escalator according to claim 1, wherein the pair of rails are cantilevers extending from the side of the one floor .