JP2011063390A - Truss support device of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a truss support device of a passenger conveyor, which reduces the installation space of the passenger conveyor in a building, by regulating the displacement in the width direction while allowing the displacement in the longitudinal direction of a truss, even when the clearance between the passenger conveyor and its adjacent side structure is relatively narrow. <P>SOLUTION: A first pedestal connecting surface 5d and a second pedestal connecting surface 5e of a support angle 5 are placed on the upper surface of a pedestal 11A via a plurality of liners 12A, 12B, 13A and 13B. The first abutting surface 5f of the first pedestal connecting surface 5d abuts on a projecting surface 14b of a first stud 14, and a second abutting surface 5g of the second pedestal connecting surface 5e abuts on the projecting surface 14b of a second stud 14, so that the displacement in the width direction of the truss 2 is regulated. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a truss support device for a passenger conveyor that supports an end portion of a truss from a building structure.

  In Non-Patent Document 1, the support angle on the lower floor of the truss is fixed to a cradle provided on the lower floor of the building structure, and the support angle on the upper floor of the truss is set on the upper floor of the building structure. An example is shown in which the pedestal is placed in a non-fixed manner (the truss can be displaced in the longitudinal direction of the truss with respect to the pedestal). In particular, in Non-Patent Document 1, as an example of a connection method between the cradle and the support angle (non-fixed support on the upper floor side), a stopper for regulating the displacement in the width direction of the truss due to an impact such as an earthquake is provided. A method of welding and fixing on a pedestal in a state where both ends of the support angle in the width direction are in contact is shown. In addition, in this specification, the width direction of a truss means the left-right direction of the orthogonal surface with respect to the longitudinal direction of a truss.

  Further, for example, in the conventional passenger conveyor truss support device as shown in Patent Document 1, the support angle can be displaced in the longitudinal direction of the truss with respect to the cradle by an impact such as an earthquake (sliding relative to the cradle). It is placed so that it can move. Similarly to the above-described non-patent document 1, this is also welded and fixed on the cradle in a state where the stopper is in contact with both ends of the support angle in the width direction.

Ministry of Land, Infrastructure, Transport and Tourism Housing Bureau Building Guidance Division, Japan Building Equipment and Elevator Center, Japan Elevator Association Editorial, Elevator Technical Standards, 2002 Edition, pages 2-103 to 105

JP-A 61-243792

  Here, in recent years, narrow-type passenger conveyors (space-saving passenger conveyors) have become widespread for the purpose of saving space for installing escalators in buildings. This narrow passenger conveyor has a step width that matches the step width of a standard passenger conveyor (not a narrow type), and the total width dimension of the passenger conveyor is reduced to the maximum.

  When such narrow passenger conveyors are installed next to each other, the gap between adjacent trusses is narrower than that of a standard passenger conveyor. Similarly, when a narrow passenger conveyor is installed next to a building wall, the gap between the adjacent truss and the building wall is narrower than that of a standard passenger conveyor. Therefore, when the narrow passenger conveyors are installed next to each other, the gap between the support angles adjacent to each other is also narrower than that of a standard passenger conveyor.

  For this reason, there existed a problem that it became difficult for the conventional thing as shown in the above nonpatent literatures 1 and patent documents 1 to secure sufficient installation space of a fastener. Similarly, when a narrow passenger conveyor is installed next to a building wall, the clearance between the support angle and the building wall is narrower than that of a standard passenger conveyor. There was a problem that it was difficult to ensure sufficient.

  Thus, in the conventional ones as shown in Non-Patent Document 1 and Patent Document 1, when installing narrow passenger conveyors next to each other, or when installing narrow passenger conveyors and a building wall next to each other It is necessary to set a relatively large gap between the narrow passenger conveyor and the adjacent structure (narrow passenger conveyor or building wall), and the installation space (especially the width dimension) of the passenger conveyor in the building ) Could not save enough space.

  The present invention has been made to solve the above-described problems. Even when the gap between the passenger conveyor and the adjacent structure is relatively narrow, the longitudinal displacement of the truss can be reduced. An object of the present invention is to obtain a truss support device for a passenger conveyor that can regulate the displacement in the width direction while allowing it and can further reduce the installation space of the passenger conveyor in the building.

  A truss support device for a passenger conveyor according to the present invention includes a cradle fixed to a building structure, a truss connection portion fixed to an end portion in the longitudinal direction of the truss, and a longitudinal direction from the longitudinal end portion of the truss. A cradle connection surface portion arranged along the horizontal direction so as to protrude outward in the direction and placed on the upper surface of the cradle, and the longitudinal end portion of the truss is interposed via the cradle A truss support member for supporting from the building structure, wherein the truss on the upper surface of the cradle is extended to the outside in the longitudinal direction and from both ends in the width direction of the truss in the range. A pair of regulating surface portions that protrude upward from the upper surface of the cradle along the longitudinal direction of the truss and are arranged to face each other at an interval in the width direction of the truss are provided at spaced locations, The truss The holding member connecting surface portion of the holding member is disposed along the longitudinal direction of the truss toward either the outer side or the inner side in the width direction of the truss, and is in contact with each of the pair of regulating surface portions. A pair of contact surfaces.

  According to the truss support device for a passenger conveyor according to the present invention, a pair of trusses on the upper surface of the cradle are extended to the outside in the longitudinal direction and at a distance from both ends in the width direction of the truss in the range. A restriction surface portion is provided, and the pair of contact surfaces of the cradle connection surface portion of the truss support member are arranged toward either the outer side or the inner side in the width direction of the truss and are in contact with the pair of restriction surface portions. Therefore, even if the gap between the passenger conveyor and the adjacent structure is relatively narrow, it is possible to regulate the displacement in the width direction while allowing the displacement of the truss in the longitudinal direction. The installation space can be further reduced.

It is a side view which shows the escalator by Embodiment 1 of this invention. It is an enlarged view which expands and shows the II section of FIG. It is a top view which shows the periphery of the support angle of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is sectional drawing which follows the VV line of FIG. It is sectional drawing which follows the VI-VI line of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a side view showing an escalator according to Embodiment 1 of the present invention. FIG. 2 is an enlarged view showing a portion II in FIG.
1 and 2, a truss 2 of an escalator (narrow escalator) 100 is provided between the building beams (building structures) 1A and 1B on the upper floor and the lower floor of the building. . A pair of balustrades 3 are provided upright at both ends in the width direction of the upper surface of the truss 2. Between the pair of balustrades 3 in the truss 2, a plurality of steps 4 connected endlessly are provided. The plurality of steps 4 are circularly moved between the upper floor side horizontal portion and the lower floor side horizontal portion of the truss 2.

  Support angles 5 and 6 as truss support members are provided at the upper ends of the longitudinal ends of the truss 2 (upper and lower floor ends), respectively. The support angles 5 and 6 are disposed so as to protrude from both ends in the longitudinal direction of the truss 2 to the outside in the longitudinal direction of the truss 2. Plate-shaped receiving bases 11A and 11B are fixed to the notch portions of the building beams 1A and 1B on the upper floor and the lower floor of the building, for example, by anchor bolts 10 or the like.

  Next, the support structure of the end part on the upper floor side of the truss 2 will be described. Here, the support structure of the upper floor end of the truss 2 will be described, but the support structure of the lower floor end of the truss 2 is the same as the support structure of the upper floor of the truss 2. FIG. 3 is a plan view showing the periphery of the support angle 5 of FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a cross-sectional view taken along line VV in FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. In FIG. 5, the structure around the hydraulic damper 32 and the coil spring 43 is omitted.

  3-6, the shape of the support angle 5 is a longitudinal cross-section L-shape, and has the vertical surface part 5a as a truss connection part, and the horizontal surface part 5b as a cradle connection surface part. The connection surface portion 5 a is fixed to the frame material at the upper end portion in the longitudinal direction of the truss 2. A U-shaped cutout portion 5c is provided at an intermediate portion in the width direction of the truss 2 in the horizontal plane portion 5b.

  Further, the horizontal surface portion 5b is divided into a first cradle connection surface portion 5d and a second cradle connection surface portion 5e by a notch portion 5c. An end surface on the second cradle connection surface portion 5e side in the width direction of the truss 2 in the first cradle connection surface portion 5d forms a first contact surface 5f. An end surface of the second cradle connection surface portion 5e on the first cradle connection surface portion 5d side in the width direction of the truss 2 forms a second contact surface 5g. The first contact surface 5f and the second contact surface 5g are each directed inward in the width direction of the truss 2.

  Two clamps (clamping members) 12A, 12B, 13A, and 13B are stacked and provided at both ends in the longitudinal direction (upper end and lower end in FIG. 3) on the upper surface of the cradle 11A. The shapes of the clamps 12A, 12B, 13A, and 13B are rectangular plates. In addition, the ends (the right end in FIG. 3) of the truss 2 in the longitudinal direction of the clamps 12A, 12B, 13A, and 13B are positioned at the fillet weld locations X1 and X1 in FIG. Like X2, it is welded and fixed to the upper surface of the cradle 11A. The number of the clamps 12A, 12B, 13A, and 13B can be increased or decreased according to the height position (height level) of the truss 2.

  Furthermore, the upper surfaces of the clamps 12B and 13B are in contact with the lower surfaces of the first cradle connection surface portion 5d and the second cradle connection surface portion 5e, respectively. That is, the first cradle connection surface portion 5d and the second cradle connection surface portion 5e of the support angle 5 are placed on the upper surfaces of the clamps 12B and 13B, respectively. Thus, the upper floor side of the truss 2 is supported from the building beam 1A via the support angle 5, the clamps 12A, 12B, 13A, 13B, and the cradle 11A.

  A pair of stoppers (regulating members) 14 and 15 are provided at intervals in the width direction of the truss 2 at the center in the width direction of the truss 2 on the upper surface of the cradle 11A. In other words, the pair of fasteners 14 and 15 are provided within a range in which the truss 2 on the upper surface of the cradle 11A is extended outward in the longitudinal direction and at a distance from both ends in the width direction of the truss 2 in the range. It has been. The shapes of the fasteners 14 and 15 are L-shaped in cross section. The fasteners 14 and 15 are disposed along the horizontal planes 14 a and 15 a along the horizontal plane and the horizontal plane 14 a along the longitudinal direction of the truss 2. , 15a and projecting surface portions 14b, 15b as a pair of restricting surface portions projecting upward.

  The outer end in the longitudinal direction of the truss 2 in the horizontal plane portion 14a (the right end in FIG. 3), and the end in the width direction of the truss 2 in the horizontal plane portion 14a (the end in the width direction of the truss 2 in FIG. 3) The lower end is welded and fixed to the upper surface of the cradle 11A as in the fillet welded portions Y1 and Z1 in FIG. Similarly, the longitudinal outer end of the truss 2 in the horizontal plane portion 15a (the right end in FIG. 3) and the lateral end of the truss 2 in the horizontal plane portion 15a on the side of the stopper 14 (the inner side in the width direction of the truss 2). The end: the upper end in FIG. 3 is welded and fixed to the upper surface of the cradle 11A, as in the fillet weld locations Y2 and Z2 in FIG.

  Here, the protruding surface portions 14 b and 15 b are arranged to face each other in the width direction of the truss 2. The surface of the protruding surface portion 14b on the side of the stopper 15 in the width direction of the truss 2 is in contact with the first contact surface 5f of the first cradle connection surface portion 5d. The surface of the protruding surface portion 15b on the side of the stopper 14 in the width direction of the truss 2 is in contact with the second contact surface 5g of the second cradle connection surface portion 5e. That is, the first cradle connection surface portion 5d and the second cradle connection surface portion 5e of the support angle 5 are placed on the upper surface of the cradle 11A so that the notch portion 5c and the projecting surface portions 14b and 15b are fitted to each other. Has been.

  As described above, the first contact surface 5f of the first cradle connection surface portion 5d is brought into contact with the protruding surface portion 14b of the first fastener 14, and the second contact surface 5g of the second cradle connection surface portion 5e is The displacement in the width direction of the truss 2 is restricted by coming into contact with the projecting surface portion 14 b of the second stopper 14. The first contact surface 5f and the second contact surface 5g are slidable along the projecting surface portions 14b and 15b, respectively, and the longitudinal displacement of the truss 2 is allowed.

  Pins 16 and 17 are provided upright on the horizontal plane portions 14a and 15a, respectively. Further, link members 18 and 19 are connected to the horizontal surfaces 14a and 15a via pins 16 and 17, respectively. Long holes 18a and 19a are provided at the end portions of the link members 18 and 19 on the side of the fasteners 14 and 15, and the pins 16 and 17 penetrate the long holes 18a and 19a. The link members 18 and 19 can be rotated about the pins 16 and 17 as fulcrums, and can be slid by the lengths of the long holes 18a and 19a with the pins 16 and 17 as fulcrums.

  One end portion (right end portion in FIG. 3) of the plate-like truss connecting members 22 and 23 pivots at the end portions of the link members 18 and 19 on the side of the anti-fastening metal fittings 14 and 15 via pins 20 and 21, respectively. Connected as possible. The other end portions (the left end portion in FIG. 3) of the truss connecting members 22 and 23 are fixed to a frame material that constitutes the longitudinal end of the truss 2.

  These fasteners 14 and 15, pins 16 and 17, link members 18 and 19, pins 20 and 21, and truss connection members 22 and 23 constitute a link mechanism. When the link members 18 and 19 of the link mechanism are rotated, that is, the entire link mechanism is deformed, the displacement in the direction of separating from the building beam 1A among the longitudinal displacements of the truss 2 is allowed. Further, when the truss 2 is displaced in the direction of separating from the building beam 1A, the connection state of the truss 2 with the building beam 1A is maintained by the link members 18 and 19 of the link mechanism.

  Plate-shaped damper support members 30 and 31 are spaced apart from each other in the width direction of the truss 2 on the surface of the vertical surface portion 5a of the support angle 5 on the center side in the longitudinal direction of the truss 2 (the surface on the left side in FIGS. Fixed. Hydraulic dampers 32 and 33 having rods 32a and 33a are fixed to the damper support members 30 and 31, respectively. The hydraulic dampers 32 and 33 are arranged toward the center side in the longitudinal direction of the truss 2.

  One end portions of long damper connecting members 34 and 35 and spring seats 36 and 37 are attached to the distal ends of the rods 32a and 33a by nuts 38 and 39, respectively. Each of the damper connecting members 34 and 35 passes through openings provided in the spring seats 36 and 37, the damper support members 30 and 31 and the vertical surface portion 5a. In addition, the other end portions of the damper connecting members 34 and 35 are located at positions spaced from the long holes 18a and 19a in the link members 18 and 19 to the truss connecting members 22 and 23 via the pins 40 and 41, respectively. It is connected so that it can rotate.

  Between the spring seats 36, 37 and the damper support members 30, 31, the urging members so as to surround the hydraulic dampers 32, 33 and the positions of the damper connection members 34, 35 on the rods 32 a, 33 a side, respectively. Coil springs 42 and 43 are provided. The coil springs 42 and 43 urge the truss 2 toward the building beam 1 </ b> A in the longitudinal direction of the truss 2.

  Here, when an external force that exceeds the spring force of the coil springs 42 and 43 acts on the truss 2 in a direction away from the building beam 1A, the external force is buffered by the hydraulic dampers 32 and 33. That is, the hydraulic dampers 32 and 33 are impact absorbing mechanisms for absorbing an impact in a direction away from the building beam 1A.

According to the truss support device for an escalator of the first embodiment as described above, the truss 2 on the upper surface of the cradle 11A is within a range extending outward in the longitudinal direction and is spaced from both ends in the width direction of the truss 2 in the range. The fasteners 14 and 15 having the projecting surface portions 14b and 15b are fixed to the places where the brackets are placed. Further, the support angle 5 has a first contact surface 5f and a second contact surface 5g that are in contact with the projecting surface portions 14b and 15b, respectively.
With this configuration, the displacement in the width direction of the truss 2 is restricted by the first contact surface 5f that is in contact with the projecting surface portion 14b and the second contact surface 5g that is in contact with the projecting surface portion 15b. There is no need to provide clasps at both ends of the truss 2 in the width direction. From this, the gap dimension A1 between the escalator 100 and the adjacent escalator 200, the gap dimension A2 between the support angles 5, the gap dimension B1 between the escalator 100 and the adjacent building wall 1C, and the escalator Even when the gap dimension B2 between the support angle 5 of 100 and the adjacent building wall 1C is relatively narrow, the displacement in the width direction can be regulated while allowing the displacement in the longitudinal direction of the truss 2, The installation space of the escalator 100 can be further reduced.

  In addition, the inner end in the width direction of the truss 2 and the outer end in the longitudinal direction of the truss 2 in the horizontal plane portions 14a and 15a of the stoppers 14 and 15 are fixed by welding to the upper surface of the receiving base 11A. With this configuration, even when the gap size around the support angle 5 of the escalator 100 (A2, B2 in FIG. 3) is relatively narrow, the fillet weld locations Y1, Y2, Z1, Z2 in FIG. Sufficient welding length can be secured. As a result, when the truss 2 is displaced in the width direction due to an impact such as an earthquake, the occurrence of breakage of the fasteners 14 and 15 and the fillet weld locations Y1, Y2, Z1, and Z2 can be suppressed.

  Furthermore, the upper ends of the truss 2 are biased toward the building beam 1A by the coil springs 42 and 43. In addition, the displacement of the truss 2 in the direction of separating from the building beam 1A is buffered by the hydraulic dampers 32 and 33. With this configuration, since the coil springs 42 and 43 and the hydraulic dampers 32 and 33 give the truss 2 resistance to impact and attractive force, the earthquake resistance of the truss 2 can be improved.

Here, in the conventional ones as shown in Non-Patent Document 1 and Patent Document 1, since the building beam and the truss are connected only by the support angle, the margin of the support angle in the building beam is relatively shallow. In some cases, the truss may come off the building beam in response to an impact such as an earthquake.
On the other hand, in the truss support device of the escalator of the first embodiment, the truss 2 is allowed to be displaced in the longitudinal direction by being deformed, and the truss 2 is connected to the building beam 1A by the link mechanism that maintains the connection state between the truss 2 and the truss 2. 2 and the building beam 1A are connected. With this configuration, the possibility that the truss 2 is detached from the building beams 1A and 1B can be reduced even when longitudinal displacement due to an impact such as an earthquake occurs.

  In the first embodiment, the truss support device for the escalator has been described. However, the present invention can also be applied to a truss support device for a moving sidewalk.

  Moreover, although Embodiment 1 demonstrated the truss support apparatus of the narrow type passenger conveyor, this invention is applicable also to the truss support apparatus of the standard passenger conveyor which is not a narrow type.

Further, in the first embodiment, the fasteners 14 and 15 are disposed at the center of the truss 2 in the width direction on the upper surface of the cradle 11 </ b> A, and the first contact surface 5 f and the second contact surface 5 g are the support angles 5. It was arrange | positioned in the center part of the width direction of the truss 2 in the horizontal surface part 5b. However, the positions of the fasteners 14, 15 and the first contact surface 5f and the second contact surface 5g are not limited to this example.
For example, within the range in which the fasteners 14 and 15 are extended to the outside in the longitudinal direction of the truss 2 on the upper surface of the cradle 11A and in the vicinity of both ends in the width direction of the truss 2 (the distance from both ends to the inside in the width direction of the truss 2 The first abutting surface 5f is provided with a notch at the outer corner in the width direction of the truss 2 (upper right corner and lower right corner in FIG. 3) in the horizontal surface portion 5b of the support angle 5. Further, the second contact surface 5g may be disposed toward the outside in the width direction of the truss 2 (upper side / lower side in FIG. 2).

  In the first embodiment, the coil springs 42 and 43 and the hydraulic dampers 32 and 33 are connected to the truss 2 and the link mechanism. However, the coil springs 42 and 43 and the hydraulic dampers 32 and 33 may be directly connected to the building beam 1A (or building beam 1B).

  1A, 1B Building beam (building structure), 1C building wall (building structure), 2 truss, 5,6 support angle (truss support member), 5a vertical surface portion, 5b horizontal surface portion, 5c cutout portion, 5d first Abutment connection surface portion, 5e Second abutment connection surface portion, 5f First abutment surface, 5g Second abutment surface, 11A, 11B Receptacle, 12A, 12B, 13A, 13B Clamp (clamping member), 14, 15 Fastener (regulating member), 14a, 15a Horizontal surface portion, 14b, 15b Protruding surface portion (regulating surface portion), 16, 17 pin, 18, 19 Link member, 20, 21 pin, 22, 23 Truss connecting member, 32, 33 Hydraulic pressure Damper (shock absorbing mechanism), 42, 43 Coil spring (biasing member), 100, 200 Escalator (passenger conveyor).

Claims (4)

A cradle fixed to the building structure;
A truss connecting portion fixed to the longitudinal end portion of the truss; and a truss connecting portion which is disposed along the horizontal direction so as to protrude outward in the longitudinal direction from the longitudinal end portion of the truss and placed on the upper surface of the cradle A truss support device for a passenger conveyor, including a truss support member for supporting a longitudinal end of the truss from the building structure via the cradle.
Within the range in which the truss on the upper surface of the pedestal extends outward in the longitudinal direction, and at a location spaced from both ends of the truss in the width direction in the range, the receiving unit is provided along the longitudinal direction of the truss. A pair of restricting surface portions that protrude upward from the upper surface of the table and are opposed to each other at an interval in the width direction of the truss are provided,
The cradle connection surface portion of the truss support member is disposed along the longitudinal direction of the truss toward either the outer side or the inner side in the width direction of the truss, and abuts on each of the pair of restriction surface portions. A truss support device for a passenger conveyor, comprising a pair of contact surfaces. A pair of regulating members each having a horizontal plane portion disposed along the horizontal direction and a projecting surface portion projecting upward from the upper surface of the horizontal plane portion and disposed along the longitudinal direction of the truss and forming the regulating surface portion; ,
An end on the inner side in the width direction of the truss and an end on the outer side in the longitudinal direction of the truss in each horizontal plane portion of the pair of regulating members are welded and fixed to the upper surface of the cradle, respectively. The truss support device for a passenger conveyor according to claim 1. The trusses and the building structure are connected and deformed to allow longitudinal displacement of the trusses, and further include a link mechanism that maintains the connection state between the trusses and the building structures. The truss support device for a passenger conveyor according to claim 1 or 2. An urging member provided on the truss, for urging the longitudinal end of the truss toward the cradle;
An impact absorbing mechanism for absorbing an impact applied to the truss in a direction away from the cradle in a longitudinal direction of the truss, and further comprising an impact absorbing mechanism provided on the truss. The truss support device for a passenger conveyor according to any one of items 1 to 3.

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