JP7308176B2 - Passenger conveyor and method for strengthening drop-off prevention structure of existing passenger conveyor - Google Patents

Description

TECHNICAL FIELD The present invention relates to a passenger conveyor and a method for strengthening a falling prevention structure for an existing passenger conveyor.

For example, Japanese Patent Application Laid-Open No. 2011-63389 (Patent Document 1) describes a passenger conveyor that supports a building by allowing movement only in the longitudinal direction within a limited range without increasing the overall width of the truss. . This truss support device for a passenger conveyor includes an engaging member projecting from the receiving plate at a position inside the width of the truss, and an engaging member provided on the truss supporting member for receiving the engaging member to prevent movement of the truss supporting member with respect to the receiving plate. , provided with a slot that allows a predetermined size in the length direction of the truss but substantially impermissible in the width direction of the truss.

JP 2011-63389 A

The truss support device of Patent Document 1 has a structure in which elongated holes provided in a truss support member receive an engaging member projecting from a receiving plate at a position inside the truss. In this case, since the receiving plate and the engaging member are provided under the truss supporting member, the engaging member is fixed to the receiving plate while the truss is suspended over the building beam, and the engaging member is engaged with the elongated hole. cannot perform work that causes Therefore, although the structure of the truss support device of Patent Document 1 can be applied to newly installed passenger conveyors, it is difficult to apply it to existing passenger conveyors. Hereinafter, the engaging member will be referred to as a fastener.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a passenger conveyor that enables the installation of fasteners while the existing passenger conveyor is suspended over a building beam.

In order to achieve the above object, the passenger conveyor of the present invention includes:
A passenger conveyor comprising a truss frame and a truss support device including a truss support member, wherein the truss frame is erected on a building beam by the truss support device,
The truss support member has a notch or cutout that forms an opening in the truss support member in a range inside the truss frame in the width direction of the truss frame,
a fastener fixed to the building beam on which the truss frame is erected, at least a part of which is located inside the opening;
Guide members provided on the truss support member and positioned on both side surfaces of the fastener in the width direction of the truss frame to limit displacement of the truss support member in the width direction with respect to the fastener. And prepare.

Further, in order to achieve the above object, the method for strengthening the falling-off prevention structure of an existing passenger conveyor according to the present invention comprises:
A method for strengthening a drop-off prevention structure of an existing passenger conveyor comprising a truss frame and a truss support device including a truss support member, wherein the truss frame is erected on a building beam by the truss support device,
The truss support member is formed with a notch or a cutout that forms an opening in the truss support member in a range inside the truss frame in the width direction of the truss frame;
Fixing fasteners to the building beam on which the truss frame is erected so that at least a portion thereof is positioned inside the opening;
The truss support member is provided with limiting portions positioned on both side surfaces of the fastener in the width direction of the truss frame to limit displacement of the truss support member in the width direction with respect to the fastener.

ADVANTAGE OF THE INVENTION According to this invention, the passenger conveyor which enabled the operation|work which installs a fastener can be provided in the state in which the existing passenger conveyor was hung on the building beam.

Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

1 is a schematic configuration diagram of a passenger conveyor according to one embodiment of the present invention; FIG. 1 is a top view of a truss support device according to an embodiment (Embodiment 1) of the present invention; FIG. 1 is a side view of a truss support device according to an embodiment (Embodiment 1) of the present invention; FIG. FIG. 4 is a top view of a truss support device according to an embodiment (Embodiment 2) of the present invention; FIG. 4 is a side view of a truss support device according to an embodiment (Embodiment 2) of the present invention;

An embodiment of the passenger conveyor of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a passenger conveyor 1 according to one embodiment of the present invention. In addition, in FIG. 1, the state of placement of the passenger conveyor 1 is shown as a side view viewed from the side.

The passenger conveyor 1 is constructed between the lower floor 2 and the upper floor 3 of the building, and has a lower horizontal portion 4a extending toward the lower floor 2 and an upper horizontal portion extending toward the upper floor 3. 4b and an inclined portion 4c formed between the lower horizontal portion 4a and the upper horizontal portion 4b. A lower support part 6 placed on a construction beam 5 of the lower floor 2 is provided at the terminal end of the lower horizontal part 4a. An upper support portion 8 placed on a building support beam 7 of the upper floor 3 is provided at the end portion of the upper horizontal portion 4b.

Since this embodiment is applied to an existing passenger conveyor, the lower support section 6 and the upper support section 8 may be called the existing lower support section 6 and the existing upper support section 8, respectively. Since the lower support part 6 and the upper support part 8 have the same structure, they will be referred to as a truss support device.

Renewal of the existing passenger conveyor is based on the 2013 Ministry of Land, Infrastructure, Transport and Tourism Notification No. 1046, in order to "retroactive to the current regulations" based on the provisions of Article 86 7 of the Building Standards Act when expanding or renovating over a certain scale. , It is necessary to reinforce the fall prevention structure for the existing passenger conveyor, and if the structure cannot be strengthened, it is necessary to take measures to prevent falling by repairing the building. Hereinafter, the truss support device of the present invention An embodiment of is described. In the following description, the "longitudinal direction (length direction) L" and the "transverse direction (width direction) W" may be designated and described, but "longitudinal direction (length direction) L" and " The lateral direction (width direction) W” is defined based on the “longitudinal direction (longitudinal direction)” and “lateral direction (width direction)” of the passenger conveyor 1 and the truss frame 4 .

[Example 1]
FIG. 2 is a top view of a truss support device according to an embodiment (Embodiment 1) of the present invention. FIG. 3 is a side view of a truss support device according to an embodiment (Embodiment 1) of the present invention. 2 and 3 show a structure in which a guide member is attached to a truss support device (truss support portion) by providing fasteners on the beams of the building and notches in the truss support member of the passenger conveyor.

As described above, since the lower truss support device 6 and the upper truss support device 8 have the same structure, the upper truss support device 8 will be described below.

When strengthening the drop-off prevention structure for the existing passenger conveyor, there is a problem that the work space is limited because the building is not under construction but already in use. A truss support device 8 of the passenger conveyor 1 includes a truss support member 9 attached to the end of the truss frame 4 in the longitudinal direction L. As shown in FIG. The truss support member 9 is supported on the building beam 7 via a distance piece (spacer) 21 . The truss support member 9 has a notch 11 for fixing a cuboid-shaped fastener (engagement member) 10 for restricting the movement of the passenger conveyor 1 in the lateral direction (width direction) W to the building beam 7. have.

The notch 11 is cut longer than the dimension W10 of the fastener 10 in the lateral direction (width direction) of the truss frame 4 with respect to the shape of the fastener 10, and the longitudinal direction (longitudinal direction) of the truss frame 4. is cut out longer than the dimension L10 of the fastener 10. That is, the widthwise dimension W11 of the notch 11 is longer than the widthwise dimension W10 of the fastener 10, and the lengthwise dimension L11 of the notch 11 is longer than the lengthwise dimension L10 of the fastener 10.

The position of the fastener 10 is the center position of the truss support member 9 in the lateral direction W and inside the truss support member 9 in the longitudinal direction L. As shown in FIG. Work for fixing the fastener 10 to the building beam 7 by making the notch surface of the notch 11 larger than the horizontal cross-sectional shape of the fastener 10 and positioning the fastener 10 and the notch 11 at the above positions. It has the effect of securing space.

When providing the notch 11 in the truss support member 9 of the existing passenger conveyor 1, the work is performed in a building that is already in use, not in an environment with complete facilities such as a factory, so high-precision machining is required. Therefore, it is difficult to provide the notches 11 with accurate dimensions and smooth cross sections in the truss support member 9, resulting in poor workability.

In this embodiment, as shown in FIGS. 2 and 3, fasteners 10 are sandwiched between the truss support members 9 of the truss support device 8 from both ends toward the center in the lateral direction W of the truss frame 4. of the guide member 12 is provided. That is, the guide member 12 has a structure that sandwiches the fastener 10 from both sides in the lateral direction W. As shown in FIG.

The guides 12 are machined in a well-equipped environment such as a factory, and it is possible to bring the machined guides into the building. By adopting a structure in which the fastener 10 is sandwiched between the guide members (limiting members) 12, when the notch 11 is provided in the truss support member 9, the shape of the fastener 10 is larger in both the longitudinal direction L and the width direction W. As long as the dimensions (L11>L10, W11>W10) are ensured, there is no need for precise dimensions or a smooth cross section, which has the effect of improving workability.

In this case, the interval W12 between the portions (guide portions) 12a and 12b of the guide member 12 sandwiching the fastener 10 is slightly larger than the widthwise dimension W10 of the fastener 10 by a slight clearance (ΔW) (W12=W10+ΔW). , the lengthwise dimension L12 of the guide portions 12a and 12b of the guide member 12 is larger than the lengthwise dimension L10 of the fastener 10. As shown in FIG.

The guide portions 12a and 12b of the guide member 12 are provided on the truss support member 9 and are positioned on both side surfaces 10a and 10b of the fastener 10 in the width direction W of the truss frame 4 so as to guide the fastener 20 on the truss support member 9. constitutes a limiting portion that limits the displacement in the width direction W with respect to. The restricting portions 12a, 12b positioned on the side surfaces 10a, 10b of the fastener 10 are constructed as a single plate member. As a result, the number of parts can be reduced, and the restricting portions 12a and 12b can be configured with a simple configuration.

The interval W12 between the restricting portions 12a and 12b located on both side surfaces 10a and 10b of the fastener 10 is smaller than the width dimension W11 of the opening of the notch 11, and the length dimension L12 of the restricting portions 12a and 12b is cut. It is larger than the lengthwise dimension L11 of the opening of the notch 11 . In this case, the one end 12c of the guide member 12 located on the side away from the truss frame 4 in the length direction L is closer to the truss frame 4 than the one end 9c of the truss support member 9 located on the side away from the truss frame 4. located on the side away from As a result, the lack of dimensions of the truss support member 9 in the length direction L can be compensated for by the guide member 12 .

There is a problem of strengthening the drop-off prevention structure for the existing passenger conveyor 1 when performing an extension or reconstruction of a certain scale or more. The guide member 12 is longer in the longitudinal direction L of the truss frame 4 and slightly longer in the lateral direction W than the fasteners 10 . Further, the guide member 12 has a structure that sandwiches the fastener 10 with a slight gap (ΔW). With the above structure, the guide member 12 can slide in the longitudinal direction L within a range in which the truss support member 9 has a sufficient engagement allowance with respect to the building beam 7. can. In the lateral direction W, the side portions 10a and 10b of the fastener 10 and the end surfaces (guide portions) 12a and 12b of the guide member 12 sandwiching the fastener 10 come into contact with each other to restrict the movement of the passenger conveyor 1. Therefore, there is an effect of strengthening the drop-off prevention structure for the existing passenger conveyor 1 .

Further, in this embodiment, it is possible to "ensure work space", "no need for high-precision machining", and "permit sliding in the longitudinal direction L and restrict movement in the transverse direction W". If possible, the truss support member 9 is not limited to the notch structure, and may be a cut-out structure like a hole.

[Example 2]
A second embodiment according to the present invention will be described with reference to FIGS. 4 and 5. FIG. FIG. 4 is a top view of a truss support device according to an embodiment (Embodiment 2) of the present invention. FIG. 5 is a side view of a truss support device according to an embodiment (Embodiment 2) of the present invention. In addition, the same code|symbol as an Example is attached|subjected to the structure which is common in Example 1, and the overlapping description is abbreviate|omitted. Also, in the configuration denoted by the same reference numerals as in the first embodiment, if there are portions different from the first embodiment, the different portions will be described.

In repair work at commercial facilities, etc., the use of fire when installing fasteners on the building beams while the existing passenger conveyor is hung on the building beams may cause a fire or malfunction of fire alarms, sprinklers, etc. Since there is a risk of fire, a structure that does not use fire is required. Therefore, a falling-off prevention structure using bolt fastening will be described. In this embodiment, a fastener 14 with a pedestal having a thick plate (pedestal) 15 provided with a bolt insertion hole 15a on the bottom surface is attached to the building beam 7 with a bolt 17 for the building beam 7 provided with the screw hole 13. It is characterized by the structure to be fastened. That is, in this embodiment, a thick plate (pedestal) 15 and a fastener 10 are integrated to constitute a fastener 14 with a pedestal, and the fastener 14 with a pedestal is fastened to a building beam 7 with a bolt 17 .

That is, in this embodiment, the fastener 10 is integrated with the thick plate 15 having the bolt insertion hole 15a through which the bolt 17 is inserted.
The fastener 10 is fastened to the building beam 7 by screwing a bolt 17 inserted through the bolt insertion hole 15 a into a screw hole 13 provided in the building beam 7 .

When bolting the fasteners 10 to the building beams 7 , there is a problem in providing a structure in which the fasteners 10 can be bolted to the building beams 7 while the existing passenger conveyor 1 is suspended over the building beams 7 . Therefore, as in the first embodiment, the truss support member 9 is provided with the notch 11 . In the case of the present embodiment, the notch 11 is a member for fixing the fastener 14 with a pedestal to the building beam 7, and is positioned longer than the thick plate 15 provided with the bolt insertion hole 15a in the longitudinal direction L and the lateral direction. Since both W are long, it is possible to secure a work space for making the screw holes 13 in the building beam 7 .

In order to provide a structure in which the fastener 10 can be bolted to the building beam 7 provided with the screw hole 13, the fastener 14 with a pedestal is provided on the bottom surface of the fastener body 10 having a rectangular parallelepiped shape. A thick plate (pedestal) 15 provided with a bolt insertion hole 15a is fixed. The fastener main body 10 is positioned at the center of the thick plate 15 in the longitudinal direction L and the lateral direction W thereof. The widthwise dimension W15 of the thick plate 15 is smaller than the widthwise dimension W11 of the notch 11 . Therefore, even when the passenger conveyor 1 is hung on the building beam 7, it can be installed on the building beam 7 provided with the screw hole 13 without interfering with the notch 11. can be fastened with the bolt 17.

In this embodiment, the part of the building beam 7 where the screw hole 13 is machined is exposed to the opening surface formed in the truss support member 9 by the notch 11, and the bolt insertion hole 15a of the fastener 14 with a pedestal is provided in this opening surface. be exposed. Further, it is necessary that the bolt 17 inserted through the bolt insertion hole 15a and screwed into the screw hole 13 is exposed on the opening surface of the truss support member 9 by the notch 11. As shown in FIG.

That is, the thick plate 15 has a bolt insertion hole 15a through which the bolt 17 is inserted in the plate surface between the outer edge 15s and the fastener 10.
The bolt insertion hole 15 a is arranged at a position where the bolt 17 inserted through the bolt insertion hole 15 a is exposed to the opening 11 .

In other words, the cutout (opening, opening surface) 11 may have a size that allows the screw hole 13 , the bolt insertion hole 15 a and the bolt 17 to be exposed to the opening surface of the truss support member 9 by the cutout 11 . In this case, if the thick plate 15 can be inserted into the lower side of the notch 11 with the thick plate 15 tilted from the horizontal position, the width dimension W15 of the thick plate 15 can be larger than the width dimension W11 of the notch 11. good.

However, by making the notch 11 longer than the thick plate 15 in both the longitudinal direction L and the transverse direction W, the building beam below the notch 11 (back side) can be installed when the thick plate 15 is horizontal. 7, work efficiency is improved. That is, it is preferable that the width dimension W15 of the thick plate 15 is smaller than the width dimension W11 of the opening 11 .

Further, in the present embodiment, as in the first embodiment, the truss support member 9 is not limited to the structure of the notch 11, and may be of a structure cut out like a hole.

In each embodiment according to the present invention described above, the passenger conveyor 1 is configured as follows.
A passenger conveyor 1 comprising a truss frame 4 and truss support devices 6, 8 including a truss support member 9, wherein the truss frame 4 is constructed over building beams 5, 7 by the truss support devices 6, 8,
The truss support member 9 has a notch or cutout that forms an opening 11 in the truss support member 9 in the inner range of the truss frame 4 in the width direction W of the truss frame 4,
fasteners 10 fixed to the building beams 5 and 7 on which the truss frame 4 is erected and at least a part of which is located inside the opening 11;
Limiting portions provided on the truss support member 9 and positioned on both side surfaces 10a and 10b of the fastener 10 in the width direction W of the truss frame 4 to limit displacement of the truss support member 9 in the width direction W with respect to the fastener 10. a guide member 12 having 12a, 12b.

Further, in each of the above-described embodiments of the present invention, the existing passenger conveyor 1 is subjected to the following method of strengthening the drop-off prevention structure.

A method for strengthening a drop-off prevention structure of an existing passenger conveyor 1 having a truss frame 4 and truss support devices 6, 8 including a truss support member 9, and constructing the truss frame 4 on a building beam 7 with the truss support devices 6, 8. in
The truss support member 9 is formed with a notch or a cutout that forms an opening 11 in the truss support member 9 in the inner range of the truss frame 4 in the width direction W of the truss frame 4,
A fastener 10 is fixed to the building beam 7 on which the truss frame 4 is erected so that at least a part of it is positioned inside the opening 11,
The truss support member 9 is provided with limiting portions 12a, 12a positioned on both side surfaces 10a and 10b of the fastener 10 in the width direction W of the truss frame 4 to limit the displacement of the truss support member 9 with respect to the fastener 10 in the width direction W. 12b is attached.

With the above configuration, the work of installing the fasteners 10 can be performed in a state in which the existing passenger conveyor 1 is suspended over the building beams 7 without refurbishing the building.

It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments are detailed descriptions for easy understanding of the present invention, and are not necessarily limited to those having all the configurations. In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

DESCRIPTION OF SYMBOLS 1... Passenger conveyor, 4... Truss frame, 7... Building beam, 8... Truss support device, 9... Truss support member, 10... Stopper, 10a, 10b... Both sides of the stop 10, 11... Opening or notch, Reference numerals 12: Guide member 12a, 12b: Restriction portion 13: Screw hole provided in building beam 7 15: Thick plate 15a: Bolt insertion hole 15s: Outer edge of thick plate 15 17: Bolt L11: Opening L12: lengthwise dimension of restricting portions 12a and 12b, W11: widthwise dimension of opening 11, W12: interval between both restricting portions 12a and 12b, W15: widthwise dimension of thick plate 15.

Claims (7)

A passenger conveyor comprising a truss frame and a truss support device including a truss support member, wherein the truss frame is erected on a building beam by the truss support device,
The truss support member has a notch or cutout that forms an opening in the truss support member in a range inside the truss frame in the width direction of the truss frame,
a fastener fixed to the building beam on which the truss frame is erected, at least a part of which is located inside the opening;
Guide members provided on the truss support member and positioned on both side surfaces of the fastener in the width direction of the truss frame to limit displacement of the truss support member in the width direction with respect to the fastener. and a passenger conveyor. In claim 1,
A passenger conveyor according to claim 1, wherein said restricting portions located on both side surfaces of said fasteners are constructed as a single plate-like member. In claim 1,
The space between the restricting portions located on both side surfaces of the fastener is smaller than the widthwise dimension of the opening, and the lengthwise dimension of the restricting portion is greater than the lengthwise dimension of the opening. passenger conveyor. In claim 1,
The fastener is integrated with a thick plate having a bolt insertion hole through which the bolt is inserted,
The passenger conveyor, wherein the fastener is fastened to the building beam by screwing a bolt inserted through the bolt insertion hole into a screw hole provided in the building beam. In claim 4,
The thick plate has a bolt insertion hole through which a bolt is inserted in the plate surface between the outer edge and the fastener,
A passenger conveyor, wherein a bolt insertion hole is arranged at a position where a bolt inserted through the bolt insertion hole is exposed to the opening. In claim 5,
The passenger conveyor, wherein the thick plate has a width dimension smaller than that of the opening. A method for strengthening a drop-off prevention structure of an existing passenger conveyor comprising a truss frame and a truss support device including a truss support member, wherein the truss frame is erected on a building beam by the truss support device,
The truss support member is formed with a notch or a cutout that forms an opening in the truss support member in a range inside the truss frame in the width direction of the truss frame;
Fixing fasteners to the building beam on which the truss frame is erected so that at least a portion thereof is positioned inside the opening;
The truss support member is provided with limiting portions positioned on both side surfaces of the fastener in the width direction of the truss frame to limit displacement of the truss support member in the width direction with respect to the fastener. A method for strengthening a drop-off prevention structure of an existing passenger conveyor.

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