JP2024009558A - Support structure of escalator and lower support member used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support structure of an escalator and a lower support member used for the same whereby the support structure that is able to prevent lateral vibration of the escalator even when a building is vibrated by an earthquake can easily be mounted.

SOLUTION: An escalator 10 has a pair of right and left leg portions 56, 56 provided at a bottom part of a lower part of a truss 12 and placed on a floor surface. A lower support member 32 includes: a pair of right and left bracing members 36, 36 extending in a longitudinal direction between the pair of right and left leg portions 56, 56 to be placed, and including a vertical plate 40 erected in a vertical direction on the floor surface; a plate-like plate 42 longitudinally attached to a lateral external surface of each of the vertical plates 40; one or a plurality of plate-like shims 44 sandwiched between the plate 42 and the vertical plate 40; and a plurality of bolts 54 integrally fixing the vertical plate 40, the shim(s) 44, and the plate 42. Lateral inside portions of the pair of right and left leg portions 56, 56 are in contact with lateral external surfaces of the pair of right and left plates 42, 42.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2024,JPO&INPIT

Description

Embodiments of the present invention relate to an escalator support structure and a lower support member used therein.

Escalators are required to have an earthquake-resistant structure according to the Building Standards Act, and the structure for attaching the truss to the building also requires a specified structure. Due to recent legal amendments, the support structure that supports the lower part of the truss is now required to have a structure that prevents the truss from swinging from side to side even if the building shakes during an earthquake.

JP2008-285310A Japanese Patent Application Publication No. 2007-112530

However, the lower storage space dug into the lower floor of the building to store the lower part of the truss is a narrow space, and in this narrow space, workers have to adjust the support members that prevent the truss from swinging. There was a problem in that the welding work was extremely difficult.

Therefore, an embodiment of the present invention aims to provide an escalator support structure and a lower support member used therein, which can easily attach a support structure that can prevent the escalator from swinging in the left-right direction even if the building shakes due to an earthquake. purpose.

An embodiment of the present invention is a support structure for an escalator, which includes the escalator and a lower support member for placing a lower part of the escalator on the floor of a building, the escalator extending in the front-rear direction. and a pair of left and right legs that are provided at the bottom of a lower horizontal section at the bottom of the truss and placed on the floor surface, and the lower support member has a pair of left and right legs that are placed on the floor surface. a pair of left and right steady rest members including a vertical plate extending along the front-rear direction between the legs and standing upright in the vertical direction on the floor surface; A plate-shaped plate attached along the front-rear direction, one or more plate-shaped shims sandwiched between the plate and the vertical plate, and the vertical plate, the shim, and the plate are fixed together. a plurality of bolts, the inner portions of the pair of left and right legs in the left and right direction being in contact with the outer surfaces of the pair of left and right plates in the left and right direction. It is.

Further, in an embodiment of the present invention, the pair of left and right legs at the bottom of the truss extending in the front-rear direction of the escalator are fixed to the floor surface on which they are placed. The pair of left and right steady rest members including vertical plates provided upright abut on the inside of each of the pair of left and right legs in the left and right direction, and the outer surface of each of the vertical plates in the left and right direction a plate-shaped plate attached along the vertical plate; one or more plate-shaped shims sandwiched between the plate and the vertical plate; and a plurality of plate-shaped shims that fix the vertical plate, the shim, and the plate together. A lower support member characterized by having a bolt.

It is a side explanatory view seen from the left side of an escalator of one embodiment of the present invention. It is a perspective view of the state where the lower horizontal part of the truss is placed in the lower storage space. FIG. 3 is a perspective view of the left leg and the left lower support member. It is a perspective view of a state in which a steady rest member, a shim, and a plate are attached to a base. It is an exploded perspective view of a steady rest member, a shim, and a plate. FIG. 3 is a longitudinal cross-sectional view of the lower support member and a pair of left and right legs as seen from the rear. FIG. 3 is a vertical cross-sectional view of the left leg seen from the left side.

Hereinafter, a support structure for attaching an escalator 10 to a building 1 according to an embodiment of the present invention and a lower support member 32 used therein will be described with reference to FIGS. 1 to 7.

(1) Escalator 10
The overall structure of the escalator 10 installed in the building 1 will be explained with reference to FIGS. 1 and 2. In order to explain the following explanation in an easy-to-understand manner, the direction from the lower floor to the upper floor is defined as the front-rear direction when looking up from the lower floor to the upper floor, and FIG. 1 is a simplified side view as seen from the left side. This is the state where the member on the right side is omitted.

As shown in FIG. 1, the truss 12, which is the framework of the escalator 10, is constructed by combining a plurality of metal frame members (see FIG. 2). It is composed of a horizontal part 20 and an inclined part 22 provided between the upper horizontal part 18 and the lower horizontal part 20. A support angle 14 is provided at the upper part of the front end of the upper horizontal part 18 of the truss 12, and a support angle 16 is provided at the lower part of the rear end of the lower horizontal part 20. , is constructed along the front-rear direction spanning the upper floor 2 of the upper floor of the building 1 and the lower floor 3 of the lower floor. Inside the inclined portion 22, a plurality of steps 24 connected in an endless manner move in the front-rear direction. A pair of left and right balustrades 26, 26 are erected at the upper portions of both left and right ends of the upper horizontal portion 18, the inclined portion 22, and the lower horizontal portion 20, and a handrail belt 28 is provided above the balustrade 26 in synchronization with the steps 24. and move.

As also shown in FIG. 1, an upper storage space 4 for storing the upper horizontal portion 18 of the truss 12 is dug in the upper floor 2 on the upper floor side of the building 1. An upper recess 6 for placing a support angle 14 is formed in the upper floor 2 at the upper part of the front surface of the upper storage space 4. In order to stably store the upper horizontal portion 18 of the truss 12 in the upper storage space 4, an upper support member 30 is installed on the horizontal upper bottom surface 8 of the upper storage space 4, and the upper horizontal portion 18 of the truss 12 is placed on the horizontal upper bottom surface 8 of the upper storage space 4. 18 is placed.

As further shown in FIG. 1, a lower storage space 5 is dug in the lower floor 3 on the lower floor side of the building 1 to accommodate the lower horizontal part 20 and the lower part of the inclined part 22 of the truss 12. A lower recess 7 for placing a support angle 16 is formed in the lower floor 3 at the upper part of the rear surface of the lower storage space 5. As shown in FIGS. 1 and 2, the lower part of the inclined part 22 of the truss 12 and the lower horizontal part 20 are placed downwardly on the horizontal lower bottom surface 9 of the lower storage space 5 so that the lower part and the lower horizontal part 20 are stably stored in the lower storage space 5. A support member 32 is provided, on which the lower horizontal portion 20 is placed.

(2) Support structure of the escalator 10 The support structure of the escalator of this embodiment is for placing the lower horizontal part 20 of the truss 12 of the escalator 10 on the lower bottom surface 9 of the lower storage space 5, and is as described above. The escalator 10 includes a pair of left and right leg portions 56, 56 provided on the truss 12 of the escalator 10, and a lower support member 32 provided on the lower bottom surface 9.

First, as shown in FIG. 2, a pair of left and right bases 34, 34 protrude from the rear of the lower bottom surface 9 of the lower storage space 5. The left and right pair of bases 34, 34 have horizontal upper surfaces, are rectangular in plan view, and are formed on the left and right with a constant interval.

(2-1) Pair of left and right legs 56, 56
The pair of left and right leg portions 56, 56 will be explained. As shown in FIGS. 2, 3, and 6, the left and right leg portions 56, 56 are attached to the bottom of the lower horizontal portion 20 of the truss 12. As shown in FIGS.

The left leg portion 56 includes a leg horizontal plate 66 attached to the left side of the bottom surface of the lower horizontal portion 20 of the truss 12 with bolts (not shown), and a leg upper plate 64 provided laterally at the bottom of the leg horizontal plate 66. It has a pair of left and right vertical leg plates 68, 68 that protrude downward from both left and right ends of the leg upper plate 64. A pair of left and right protrusions 70, 70 protrudes from the outside of the pair of left and right vertical leg plates 68, 68 in the front-rear direction.

As shown in FIG. 7, a plurality of rollers (hereinafter referred to as "rollers 58") are arranged horizontally in a row between the pair of left and right vertical leg plates 68, 68, and the rotation axis 60 of the rollers 58 is It extends from left to right. This rotating shaft 60 is rotatably fixed between a pair of left and right vertical leg plates 68, 68 via a bearing (not shown).

The right leg portion 56 is attached to the right side of the bottom surface of the lower horizontal portion 20 of the truss 12, and has a symmetrical structure with the left leg portion 56.

As shown in FIGS. 2 and 6, a pair of left and right legs 56, 56 provided on the lower horizontal portion 20 of the truss 12 are placed on a pair of left and right bases 34, 34, respectively, and a plurality of rollers 58 is grounded. When the building 1 shakes back and forth due to an earthquake, the rotation of the rollers 58 causes the entire truss 12 to move back and forth on the foundation 34. Note that the structure of the pair of left and right legs 56 is merely an example, and other structures may be used as long as the entire truss 12 can move on the base 34 in the front-rear direction.

(2-2) Lower support member 32
Next, the lower support member 32 will be explained. The lower support member 32 includes a pair of left and right steady rest members 36, a plate 42, and a shim 44.

As shown in FIGS. 3 and 6, a left steady rest member 36 is fixed to the right end of the left base 34 along the front-rear direction. The left steady rest member 36 has an L angle and is long in the front-rear direction. The steady rest member 36 is composed of a rectangular horizontal plate 38 fixed to the base 34 and a rectangular vertical plate vertically erected upward from the left end of the horizontal plate 38. Approximately right triangular ribs 41 are provided at predetermined intervals between the horizontal plate 38 and the vertical plate 40 so that the horizontal plate 38 and the vertical plate 40 can be maintained perpendicular to each other.

As shown in FIGS. 4 to 6, a plate-shaped plate 42 having a predetermined thickness (for example, 5 mm) is disposed on the left side of the vertical plate 40 of the left steady rest member 36. The plate 42 has a rectangular shape when viewed from the side, the dimension in the front and back direction is the same as the dimension in the front and rear direction of the vertical plate 40, and the dimension in the height direction (vertical direction) is shorter than the dimension in the height direction of the vertical plate 40. .

As shown in FIGS. 4 to 6, a shim 44 is arranged between the vertical plate 40 and plate 42 of the left steady rest member 36. As shown in FIGS. The shim 44 has a rectangular shape when viewed from the side, and has a thickness of, for example, 2 mm to 3 mm. A rectangular projecting piece 46 projects from the upper part of the rear end of this shim 44. The longitudinal dimension of the rectangular portion of the shim 44 excluding the projecting piece 46 is the same size as the vertical plate 40 and the plate 42, and only the projecting piece 46 projects rearward from the vertical plate 40 and the plate 42. The dimension of the shim 44 in the height direction (vertical direction) is shorter than the dimension of the vertical plate 40 in the height direction.

As shown in FIG. 5, the vertical plate 40 is provided with a plurality of screw holes 48. The plate 42 is also provided with screw holes 50 at corresponding positions. Further, in the shim 44, a vertically long elongated hole 52 is opened at a position corresponding to the screw hole 48 and the screw hole 50, and the lower end of this elongated hole 52 is opened at the lower side of the shim 44.

As shown in FIGS. 2 and 6, a right steady rest member 36 is also arranged on the right base 34, and a shim 44 and a plate 42 are arranged on the right side of the vertical plate 40 of this steady rest member 36. . The structure of the steady rest member 36, shim 44, and plate 42 on the right side is symmetrical with the structure of the steady rest member 36, plate 42, and shim 44 on the left side.

As shown in FIG. 6, even if the building shakes from side to side due to an earthquake, the pair of left and right legs 56, 56 attached to the lower horizontal portion 20 of the truss 12 will remain attached to the pair of left and right steady rest members 36, 36. The truss 12 does not move in the left-right direction because the left-right deflection is prevented between the plates 42, 42. That is, the right protrusion 70 of the left leg 56 is in contact with the left surface of the left plate 42, and the left protrusion 70 of the right leg 56 is in contact with the right surface of the right plate 42. , the pair of left and right legs 56, 56 cannot swing in the left-right direction.

(3) Method for attaching lower support member 32 Next, a method for an operator to attach lower support member 32 will be described.

First, a worker fixes the horizontal plate 38 of the left steady rest member 36 to the right end of the left base 34 in the front-back direction with bolts or welding. This work can be performed in the wide lower storage space 5 where the truss 12 is not stored. Note that the left steady rest member 36 does not need to be precisely positioned and fixed. This is because fine adjustments to eliminate gaps and completely prevent runout will be made later using the plate 42 and shims 44. Further, the worker similarly fixes the right steady rest member 36 to the left end of the right base 34 with bolts or welding. Furthermore, even in the case of an existing escalator 10, the pair of left and right steady rest members 36, 36 do not need to be precisely positioned and fixed to the base 34; Even in space 5, it is easy for the worker to work.

Next, the plates 42, 42 are attached to the pair of right and left steady rest members 36, 36, respectively, with bolts 54.

Next, the lower horizontal portion 20 of the truss 12 is stored in the lower storage space 5, and the pair of left and right legs 56, 56 are placed on the pair of left and right bases 34, 34, respectively. At this time, the truss 12 is placed so that the front and back directions of the legs 56, 56 and the back and forth directions of the steady rest members 36, 36 are aligned.

Next, in order to prevent the left and right pair of legs 56, 56 from swinging in the left and right direction between the left and right pair of steady rest members 36, 36, the plate 42 is placed so that it hits the protrusion 70 of the leg 56. A shim 44 is sandwiched between 42 and the vertical plate 40 of the steady rest member 36. The number of shims 44 is not limited to one, but a plurality of shims may be used to prevent horizontal vibration. That is, if the gap between the legs 56 and the plate 42 is large, the number of shims 44 is increased so that the legs 56 and the plate 42 are in complete contact with each other. Further, if there is no gap, there is no need to insert any shim 44. When inserting this shim 44, simply position the elongated hole 52 of the shim 44 at the position of the bolt 54 between the plate 42 and the vertical plate 40 of the steady rest member 36, and insert the shim 44 while holding the protrusion 46. That's fine.

Finally, the worker tightens the bolt 54 to fix the plate 42, shim 44, and steady rest member 36. Note that the tip of the bolt 54 and the nut protrude from the plate 42 toward the leg 56, but since the plate 42 abuts the protrusion 70 that protrudes from the leg 56, the tip of the bolt 54 and the nut protrude from the plate 42 toward the leg 56. It does not come into direct contact with the portion 56.

(4) Effects According to this embodiment, the pair of left and right legs 56, 56 attached to the lower horizontal portion 20 of the truss 12 are the plates 42, 42 attached to the pair of left and right steady rest members 36, 36. Since lateral vibration is prevented, the truss 12 will not move in the horizontal direction even if the building 1 shakes in the horizontal direction due to an earthquake.

On the other hand, when the building 1 shakes in the longitudinal direction due to an earthquake, the truss 12 can be moved by the rollers 58.

Further, adjustment to prevent the left and right pair of legs 56, 56 from swinging in the left and right direction by the left and right pair of steady rest members 36, 36 is performed by inserting shims 44 between the plate 42 and the vertical plate 40 according to the gap. The work is simple, as it is only necessary to insert it in between and fix it with the bolt 54. In particular, it can be easily attached by aligning the elongated hole 52 of the shim 44 with the position of the bolt 54 between the plate 42 and the vertical plate 40, and then inserting the protrusion 46 by hand. All you have to do is hold it and plug it in, so you can work with one hand. Moreover, since it can be fixed by simply tightening the bolt 54 afterwards, there is no need for welding or the like.

(5) Modification Example In the above embodiment, the protruding piece 46 protrudes from the upper part of the rear end of the shim 44, but it may protrude from the upper part of the front end instead. The projecting piece 46 may be provided on both sides.

Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

DESCRIPTION OF SYMBOLS 1... Building, 3... Lower floor, 5... Lower storage space, 9... Lower bottom surface, 10... Escalator, 12... Truss, 20... Lower horizontal part, 22. ... Inclination part, 30 ... Upper support member, 32 ... Lower support member, 34 ... Foundation, 36 ... Steady rest member, 38 ... Horizontal board, 40 ... Vertical board, 42 ... Plate, 44 ... Shim, 46 ... Protrusion, 54 ... Bolt, 56 ... Leg, 58 ... Roller

Claims (6)

A support structure for an escalator, comprising the escalator and a lower support member for placing a lower part of the escalator on the floor of a building,
The escalator is
A truss extending in the front-back direction,
a pair of left and right legs provided at the bottom of a lower horizontal section at the bottom of the truss and placed on the floor;
has
The lower support member is
a pair of left and right steady rest members that extend along the front-rear direction between the pair of left and right legs to be placed and include a vertical plate vertically erected on the floor surface;
a plate-shaped plate attached along the front-rear direction to the outer surface in the left-right direction of each of the vertical plates;
one or more plate-shaped shims sandwiched between the plate and the vertical plate;
a plurality of bolts that integrally fix the vertical plate, the shim, and the plate;
has
The inner portions in the left and right direction of the pair of left and right legs are in contact with the outer surfaces in the left and right direction of the pair of left and right plates,
An escalator support structure characterized by: The shim has a long hole through which the bolt passes,
The elongated hole extends downward, and the lower end of the elongated hole opens at the lower side of the shim.
The escalator support structure according to claim 1. A protrusion protruding from between the steady rest member and the plate is provided at the front or rear part of the shim.
The escalator support structure according to claim 1. The leg portion is provided with a plurality of rollers arranged in a horizontal direction,
The leg portion is movable on the floor surface in the front-back direction by the plurality of rollers,
The escalator support structure according to claim 1. The floor surface on which the pair of left and right legs are placed is a base that protrudes from a horizontal lower bottom surface of a lower storage space formed in the lower floor of the building.
The escalator support structure according to claim 1. It is fixed to the floor surface on which a pair of left and right legs are placed at the bottom of the truss that extends in the front-rear direction of the escalator, and includes a vertical board that extends along the front-rear direction and is erected in the vertical direction. A pair of left and right steady rest members,
a plate-shaped plate that comes into contact with the inside of each of the pair of left and right legs in the left-right direction and is attached to the outer surface of each of the vertical plates in the left-right direction along the front-rear direction;
one or more plate-shaped shims sandwiched between the plate and the vertical plate;
a plurality of bolts that integrally fix the vertical plate, the shim, and the plate;
A lower support member comprising: