JP6669115B2 - Support structure of truss for passenger conveyor - Google Patents

Description

  The present invention relates to a truss for a passenger conveyor such as an escalator, and more particularly, to a support structure of a truss for a passenger conveyor that supports supports provided at both ends of the truss to a building.

  The truss used for passenger conveyors such as escalators, etc., has a part of each of the support members provided at both ends of the truss is fixed to a support beam on the upper floor side of the building and a support beam on the lower floor side Each of them is hung on a fixed cradle and installed on the building. Here, a portion of the support member that is hung on the cradle is referred to as a support portion.

  In addition, following the recent Great East Japan Earthquake, the Ministry of Land, Infrastructure, Transport and Tourism revised the Building Standards Law enforcement ordinance in response to the escalator falling out of the building frame. (Effective April 1, 2002), measures have been taken to prevent escalators from falling off. Specifically, it requires that the length of the allowance of the bearing portion with respect to the frame portion be set longer than before.

  In addition, the notification of the Ministry of Land, Infrastructure, Transport and Tourism mentioned above states that the escalator will be attached to the beams of the building due to the interlayer displacement that occurs in the building in the short side direction (hereinafter, simply referred to as “short side direction”) of the truss in a substantially rectangular horizontal projection. It is stipulated that the structure does not collide. In order to adopt such a structure, for example, a stopper (a regulating member) is welded and fixed along the support so as to face both ends in the truss short side direction of the support. The truss is slidable in the longitudinal direction of the truss, and the displacement of the bearing in the short side direction is regulated by the metal fitting.

  Patent Literature 1 discloses a support structure that supports bearings provided at end portions of escalators arranged adjacent to each other so as to be slidable in the longitudinal direction. As described above, in the conventional support structure that supports the support portions of each escalator in an adjacent state, a stopper corresponding to each support portion is installed between the two support portions, and the displacement in the short side direction is performed by the stopper. Need to regulate.

JP 2014-94791 A

  By the way, in the conventional support structure of the support part, when the stopper is fixed by welding, it is necessary to fix the stopper to the pedestal in a state where the stopper is along the support part. Metal fittings cannot be welded. For this reason, it is necessary to weld and fix the stopper to the pedestal from the surface opposite to the bearing. Further, it is necessary to provide a gap for performing this welding operation between the respective fasteners between the above-described bearing portions. Therefore, the occupied area of the passenger conveyor increases in the short side direction by the gap. In addition, since it is necessary to install fasteners corresponding to the respective support portions between the support portions arranged in the adjacent state, there is a problem that the installation work is troublesome.

  The present invention provides a support structure for a truss for a passenger conveyor that can reduce the labor required for fixing fasteners while suppressing an increase in the area occupied by the passenger conveyor when the support portions of the truss for the passenger conveyor are arranged adjacently. The purpose is to:

The support structure of the truss for a passenger conveyor according to the present invention includes a first support portion extending from one end in a longitudinal direction of the truss for the first passenger conveyor, and a first support portion extending from one end in a longitudinal direction of the truss for the second passenger conveyor. a supporting structure of the truss for the passenger conveyor for supporting the building in a state of adjoining and 2 bearings, a position adjustment member for each slidably supporting the first support portion and a second bearing respectively fixed to the upper surface A regulating member composed of a raised material, a regulating plate erected on the raised material such that both side surfaces face the first and second support portions, respectively, and a pedestal provided with the regulating member. The regulating plate regulates sliding of the first bearing toward the second bearing as the first passenger conveyor truss is displaced toward the second passenger conveyor truss. , Truss for second passenger conveyor The second support portion in association with the displacement towards the truss for the first passenger conveyor is characterized in that to regulate to slide toward the first support portion. Here, the truss for the passenger conveyor includes a truss structure and a beam structure.

The support structure for a truss for a passenger conveyor according to the present invention may include a spacer that fills a gap between at least one of the first support and the second support.

  According to the structure for supporting a passenger conveyor according to the present invention, as one of the trusses for the passenger conveyor is displaced toward the truss for the other passenger conveyor by the regulating member, one of the support parts slides toward the other of the support parts. Movement can be regulated. Accordingly, the displacement of the two support portions disposed adjacent to each other can be regulated by the single regulating member, and the labor for installing the regulating member can be reduced. Further, since it is not necessary to secure a work space for performing the fixing work between the regulating members as in the related art, it is possible to suppress an increase in the occupied area of the conveyer when the bearings of the truss for the passenger conveyor are arranged adjacent to each other. can do.

It is a figure which shows typically the escalator to which the support structure of the truss for escalators which is one Embodiment of this invention is applied. FIG. 2 is a plan view of the truss support structure shown in FIG. FIG. 3 is a diagram illustrating a configuration of a truss viewed from a direction A illustrated in FIG. 2.

  Hereinafter, an embodiment of a support structure of a truss for a passenger conveyor of the present invention will be described with reference to the drawings. FIG. 1 is a diagram schematically showing an escalator 20 and an escalator 30 to which an escalator (for passenger conveyor) truss support structure according to an embodiment of the present invention is applied. In the following description, "X" means the longitudinal direction of the truss when viewed from above, and "Y" means the truss short side direction in the horizontal direction orthogonal to the longitudinal direction.

  As shown in FIG. 1, the escalator 20 is installed between the first floor support beam 10 and the second floor support beam 12 of the building, and circulates between upper and lower floor entrances 20 a and 20 b. A truss (first passenger conveyor truss) 22 including a number of steps 21a, 21b, 21c and the like is provided. The truss 22 is a structure made of a steel material such as an L-shaped steel or an H-shaped steel, for example, a truss structure or a beam structure, and has a function of supporting the weight of the escalator 20 and the load. The truss 22 includes support members 24 and 26 having a role of supporting the truss 22 on the support beams 10 and 12 at both ends in the longitudinal direction X. Here, since the support members 24 and 26 have the same configuration, only the support member 24 will be described below.

  The support member 24 includes an angle steel 24a having one side welded and fixed to the truss 22 and the other side extending to both ends in the longitudinal direction X, and an extension plate (first support part) fixed to the angle steel 24a. ) 24b. The extension plate 24a is slidably supported by the second floor support beam 12 via a support structure of an escalator truss described later (hereinafter, simply referred to as a "support structure"). In the present embodiment, the angle steel 24a is erected on the second floor support beam 12 via the extension plate 24b. However, the angle iron 24a may be erected directly on the cradle 41 without using the extension plate 24b. Good. In this case, a side portion extending in the longitudinal direction X of the angle iron 24a corresponds to a first support portion.

  The escalator 30 is provided between the second-floor support beam 12 and the third-floor support beam 14 and has the same configuration as the escalator 20. The escalator 30 is installed so as to be inclined in a direction opposite to the direction of inclination of the escalator 20, and the second floor entrance 30 a is adjacent to the second floor entrance 20 a of the escalator 20.

  A support member 34 (see FIG. 2) is provided at the second floor side end of the truss (second passenger conveyor truss) 32 provided in the escalator 30, similarly to the truss 22 of the escalator 20. Then, the extension plate (second support portion) 34b (see FIG. 2) constituting a part of the support member 34 is adjacent to the extension plate 24b provided on the second floor entrance 20a of the escalator 20 described above. It is arranged and supported by the support structure 40 of the escalator truss together with the extension plate 24b. The support structure 40 has a function of slidably supporting the extension plates 24b and 34b of the trusses 22 and 32 so that the truss 22 is not damaged by deformation or the like due to interlayer displacement such as an earthquake.

  Subsequently, a specific configuration of the support structure 40 of the escalator truss will be described with reference to FIGS. 2 and 3. FIG. 2 is a plan view of the support structure 40 shown in FIG. FIG. 3 is a diagram showing a configuration of the support structure 40 viewed from the direction A shown in FIG. As shown in FIGS. 2 and 3, the support structure 40 includes a receiving table 41 installed on a stepped-down portion 12 a formed by cutting out a part of the upper surface of the second-floor supporting beam 12, and a supporting table 41. It has fixed fasteners 42, 45, and 50. The stoppers 42 and 45 are arranged on both ends of the receiving table 41 in the short side direction Y so as to face the extension plates 24b and 34b. On the other hand, the stopper (restriction member) 50 is disposed between the extension plates 24b and 34b so as to face both the extension plates 24b and 34b.

  As shown in FIG. 3, the stopper 42 includes a plate-like raising member 43 and a regulating plate 44 erected on the raising member 43, and has a substantially L-shaped appearance. The raising material 43 is fixedly installed on the receiving table 41 by welding or the like. Further, the regulating plate 44 is disposed to face the extension plate 24b, and has a role of regulating the displacement of the extension plate 24b by abutting on the extension plate 24b when the extension plate 24b is displaced toward the regulating plate 44. Have. A spacer 44a having a role of filling a gap between the restriction plate 44 and the extension plate 24b is fixed by means such as welding. In the present embodiment, the regulating plate 44 is erected on the raising member 43, but may be fixed to the receiving table 41 by welding or the like without using the raising member 43 and erected.

  Further, in the raising member 43 of the stopper 42, the position adjusting member 62 may be fixed to the upper surface by means such as welding. The position adjusting member 62 is formed by laminating shims 62a, 62b, and 62c, which are thin metal plates. The position adjusting member 62 has a function of adjusting the erection position of the truss 22 in the vertical direction, and causes the receiving plate 41 to slidably support the extension plate 24b together with a position adjusting member fixed to a stopper 50 described later. Has a role. The stopper 45 has the same configuration as the stopper 42, and includes a raising member 46 and a regulating plate 47, and a position adjusting member 64 is fixed to the raising member 46. In the following description, the stopper 42 will be mainly described, and the description of the stopper 45 will be appropriately omitted.

  The stopper 50 is composed of a raising member 52 and a regulating plate 54, similarly to the stopper 42, but differs in that it has a substantially T-shaped appearance. Further, in the stopper 50, position adjusting members 66 and 68 having the same configuration as the above-described position adjusting member 62 are sandwiched between the extension plates 24b and 34b and the raising member 52, respectively. Fixed by means. The restricting plate 54 of the stopper 50 is arranged so that both side surfaces face the extension plates 24b and 34b, respectively. Then, spacers 54a and 54b that fill gaps between the extension plates 24b and 34b may be attached to both side surfaces of the restriction plate 54 by welding or the like. Thereby, the displacement of the extension plates 24b and 34b in the short side direction Y can be more reliably restricted. In this embodiment, the spacers 54a and 54b are attached to the regulating plate 54, but only one of the spacers may be attached to the regulating plate 54.

  The support member 26 on the opposite side may be supported by a support structure having a configuration similar to that of the above-described support structure 40, and the truss 22 may be supported by the two support beams 10 and 12 with both ends in an unfixed state. Alternatively, the truss 22 may be supported by the two support beams 10 and 12 while being fixed at one end by a support structure that supports the truss 22 in a fixed state.

  Next, a procedure for installing the trusses 22, 32 on the support structure 40 will be described with reference to FIG. First, the pedestal 41 is fixed to the stepped-down portion 12a formed by cutting out a part of the upper surface of the second floor support beam 12 using an anchor bolt (not shown) or the like. Then, the stoppers 42 and 50 are fixed at predetermined positions of the receiving table 41 by fixing means such as welding.

  Next, the truss 22 is moved between the first-floor support beam 10 and the second-floor support beam 12 by lifting using a crane or the like. In this suspended state, shims 62a, 62b, and 62c are inserted into the gap between the extension plate 24b on the second floor side of the truss 22 and the raising material 43, and are fixed to each other by welding and integrated as the position adjusting member 62, and the position is adjusted. The adjusting member 62 is fixed to the raising member 43 by welding. Similarly, a position adjusting member 66 having the same configuration as the above-described position adjusting member 62 is inserted into a gap between the extension plate 24b of the truss 22 and the raising member 52, and is fixed to the raising member 52.

  The procedure for welding and fixing the position adjusting members 62 and 66 may be the following procedure. By lifting the truss 22 using a crane or the like, the truss 22 is moved between the first floor support beam 10 and the second floor support beam 12, and the extension plate 24b is temporarily placed on the raising members 43 and 52. Next, in a state where the jack is raised by a jack-up mechanism (not shown), the shim 62a, 62b, 62c is inserted into a gap between the extension plate 24b on the second floor side of the truss 22 and the raising material 43, and is fixed by welding to each other. The position adjusting member 62 is fixedly welded to the raising member 43 in an integrated state as 62. Similarly, a position adjusting member 66 having the same configuration as the above-described position adjusting member 62 is inserted into a gap between the extension plate 24b of the truss 22 and the raising member 52, and is fixed to the raising member 52. In the above-described jack-up mechanism, for example, a tapped hole is provided in the extension plate 24b, and a bolt is screwed therein.

  Then, the extension plate 24b on the second floor side of the truss 22 is lowered onto the position adjusting members 62 and 66, and is supported by the second floor support beams 12. The extension plate on the first floor side of the truss 22 may be supported by the first floor support beam 10 in the same procedure.

  Subsequently, spacers 44a and 54a are attached to the regulating plates 44 and 54 of both the stoppers 42 and 50, respectively. By installing the truss 32 on the support structure 40 in the same procedure as that of the truss 22 described above, the work of installing the trusses 22 and 32 on the support structure 40 is completed.

  According to the escalator truss support structure 40 of the present embodiment, the stopper 50 regulates the extension plate 24b from sliding toward the extension plate 34b as the truss 22 is displaced toward the truss 32, As the truss 32 is displaced toward the truss 22, the sliding of the extension plate 34b toward the extension plate 24b can also be restricted. Thereby, the displacement of the extension plates 24b and 34b arranged adjacent to each other can be restricted by the one stopper 50. For this reason, there is no need to provide a gap between the fasteners, as in the related art, for fixing the fasteners arranged along the two extension plates by welding or the like, which is necessary for installing the escalators 20 and 30. The installation work can be reduced while reducing the occupied area. Further, according to the support structure 40, it is not necessary to provide a gap for performing the above-described fixing work, and therefore, it is also possible to increase the thickness of the regulating plate 54 constituting the stopper 50 to increase the strength.

  Further, according to the support structure 40, each of the fasteners 42, 45, 50 can be fixed to the receiving table 41 by fixing means such as welding before the truss 22, 32 is installed between the support beams 10, 12. Therefore, there is no need to fix the fasteners to the receiving base 41 by welding or the like after the trusses 22 and 32 are erected as in the related art, and the welded portions of the fasteners 42, 45 and 50 to the receiving base 41 are already installed. It is not restricted by the extension plate of the existing truss. Further, when welding is performed as in the case of the conventional fastener, it is not necessary to align the fastener with the extension plate of the truss. As a result, sufficient joining strength can be obtained while improving the workability of welding work of the stoppers 42, 45, and 50.

  In the above-described embodiment, the escalator truss support structure 40 that supports the escalators 20 and 30 that are arranged to be inclined in opposite directions is taken as an example, but the support structure 40 supports the escalators that are inclined in the same direction. You may.

  In the above embodiment, the escalator truss support structure 40 has been described as an example of the passenger conveyor truss support structure. However, the present invention is applied to a truss support structure constituting a moving walkway. Is also good.

  In the above embodiment, the stopper 50 is described as an example of the regulating member. However, a member made of another material such as a concrete block may be used instead of the stopper 50.

  The present invention can also be implemented in modes in which various improvements, modifications, or modifications are made based on the knowledge of those skilled in the art without departing from the spirit of the present invention. Further, any technique specifying matter may be replaced with another technique as long as the same operation or effect is generated.

20,30 Escalator 10,12,14 Support beam 12a Step down part 22,32 Truss (truss for first passenger conveyor, truss for second passenger conveyor)
24, 26 Support member 24a Angle iron 24b, 34b Extension plate (first support part, second support part)
40 Supporting structure (supporting structure of truss for passenger conveyor)
41 Cradle 42, 45, 50 Stopper (Regulator)
43, 46, 52 Raising material 44, 54, 47 Control plate 44a, 54a, 54b Spacer 62, 64, 66, 68 Position adjusting member X Longitudinal direction Y Short side direction

Claims (2)

A first support extending from one end of the first passenger conveyor truss in the longitudinal direction and a second support extending from one end of the second passenger conveyor truss in the longitudinal direction are supported by the building in an adjacent state. A truss support structure for a passenger conveyor to be
Wherein the raised member position adjusting member is respectively fixed to the upper surface of the first support portion and the second support portion respectively slidably supported, opposite the first support portion and both side surfaces in the second bearing part are each A regulating member comprising a regulating plate erected on the raising material so that
A receiving table provided with the regulating member,
With
The restriction plate restricts the first bearing from sliding toward the second bearing as the first passenger conveyor truss is displaced toward the second passenger conveyor truss. And restricting the second bearing from sliding toward the first bearing as the second passenger conveyor truss is displaced toward the first passenger conveyor truss. And
Support structure for truss for passenger conveyor. 2. The support structure of a truss for a passenger conveyor according to claim 1 , wherein the regulation plate includes a spacer that fills a gap between at least one of the first support and the second support . 3.

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