JP2022029362A - Earthquake resistance improvement method and earthquake resistance improvement component of passenger conveyor - Google Patents

Abstract

To provide an earthquake resistance improvement method of a passenger conveyor which can secure a sufficient overlap allowance.SOLUTION: An earthquake resistance improvement method of a passenger conveyor is an earthquake resistance improvement method of a passenger conveyor including: a truss; foot steps; a support member which is provided at an end of the truss and supported by a first receiving surface of a building structure so as to be slidable in a slide direction; a first support base attached to the building structure and having a second receiving surface; and a first intermediate support protruding from the truss and having a bottom surface supported by the second receiving surface. The earthquake resistance improvement method includes: removing the first support base; attaching a second intermediate support for supporting the truss to the truss; attaching a second support base having a third receiving surface to the building structure; and attaching a slide member, which is longer than the bottom surface in the slide direction and supported by the third receiving surface so as to be slidable in the slide direction, to the second intermediate support.SELECTED DRAWING: Figure 3

Description

Embodiments of the present invention relate to seismic-resistant methods and seismic-resistant parts for passenger conveyors.

A passenger conveyor, such as an escalator, comprises a truss provided between two boarding / alighting points and a plurality of steps that are endlessly connected and circulate along the truss. The passenger conveyor is supported by the building by supporting the support members provided at both ends of the truss by the building.

For earthquake resistance, the support member is slidably supported by the building in the traveling direction of the step. For example, a predetermined gap is provided between the end of the truss and the building in the traveling direction of the step. The support member is designed so that the length (hanging allowance) supported by the building can be sufficiently secured even when the support member slides so as to widen the gap, and the support member can be prevented from falling off from the building.

Japanese Patent No. 6518208

For example, in the extension / renovation work of a building, if the passenger conveyor is not yet earthquake-resistant, the passenger conveyor is made earthquake-resistant. The passenger conveyor may be provided with an intermediate support attached to the truss between the two boarding points and supported by the building. In this case, the intermediate support is also made earthquake-resistant so that it can slide following the sliding of the support member. However, with the existing intermediate support, it may be difficult to secure a sufficient hooking allowance when sliding.

One example of the problem to be solved by the present invention is to provide a seismic resistant method and seismic resistant parts for a passenger conveyor capable of securing a sufficient hooking allowance.

A method for making a passenger conveyor seismic according to one embodiment includes a truss, a plurality of steps connected endlessly along the truss, and an end portion of the truss in the traveling direction of the plurality of steps. A support member provided, provided on a building, and slidably supported on a first receiving surface facing upward in a sliding direction along the first receiving surface, and a support member attached to the building and above. A first support base having a second receiving surface facing the truss, and a first intermediate support having a bottom surface that protrudes downward from the truss and faces downward and is supported by the second receiving surface. A method for making a passenger conveyor earthquake-resistant, which comprises removing the first support base, attaching a second intermediate support having a first support surface for supporting the truss to the truss, and above the truss. A second support base having a third receiving surface facing the building is attached to the building, and the third is slidable in the sliding direction, which is longer than the bottom surface in the sliding direction and faces downward. A sliding member having a sliding surface supported by a receiving surface of the above-mentioned second intermediate support is provided.

FIG. 1 is a cross-sectional view schematically showing a passenger conveyor according to the first embodiment. FIG. 2 is a perspective view showing the existing intermediate support structure of the first embodiment. FIG. 3 is a perspective view showing the earthquake-resistant intermediate support structure of the first embodiment. FIG. 4 is a cross-sectional view showing the existing intermediate support structure of the first embodiment. FIG. 5 is a front view showing the existing intermediate support structure of the first embodiment. FIG. 6 is a cross-sectional view showing the earthquake-resistant intermediate support structure of the first embodiment. FIG. 7 is a front view showing the earthquake-resistant intermediate support structure of the first embodiment. FIG. 8 is a perspective view showing the seismic resistant parts of the first embodiment. FIG. 9 is a side view showing the seismic resistant parts of the first embodiment.

(First Embodiment)
Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 9. In this specification, the vertically upper direction is basically defined as the upward direction, and the vertically lower direction is defined as the downward direction. Further, in the present specification, the constituent elements according to the embodiment and the description of the elements may be described in a plurality of expressions. The components and their description are examples and are not limited by the representations herein. The components may also be identified by names different from those herein. The components may also be described by expressions different from those herein.

FIG. 1 is a cross-sectional view schematically showing a passenger conveyor 1 according to the first embodiment. As shown in FIG. 1, the passenger conveyor 1 in this embodiment is an escalator. The passenger conveyor 1 is not limited to the escalator, but may be a moving walkway.

The passenger conveyor 1 is provided between the upper floor 3 and the lower floor 4 of the building 2. The building 2 may be a building with a roof, or may be another structure provided in the field. The upper floor 3 is located above the lower floor 4.

The passenger conveyor 1 has a truss 11, a plurality of steps 12, boarding / alighting plates 13 and 14, support members 15 and 16, and an intermediate support structure 17. The truss 11 may also be referred to as a frame. The step 12 may also be referred to as a step, pallet, scaffold, or step. The support members 15 and 16 may also be referred to as support angles.

A plurality of steps 12 are arranged inside the truss 11. The step 12 is a member on which passengers are placed. The plurality of steps 12 are endlessly connected via a step chain spanned between the drive wheel and the driven wheel. When a power source such as a motor rotates and drives the drive wheels, the plurality of steps 12 circulate (circulate) along the truss 11.

Inside the truss 11, an upper floor machine room 3a is provided in the vicinity of the upper floor 3 or the upper floor 3, and a lower floor machine room 4a is provided in the vicinity of the lower floor 4 or the lower floor 4. For example, the drive wheel is arranged in the upper machine room 3a, and the driven wheel is arranged in the lower machine room 4a. Therefore, the plurality of steps 12 circulate between the upper floor machine room 3a and the lower floor machine room 4a. The parts and devices arranged in the upper floor machine room 3a and the lower floor machine room 4a are not limited to this example.

The boarding / alighting plate 13 covers the machine room 3a on the upper floor and is provided at the boarding / alighting port on the upper floor 3. The boarding / alighting board 13 is arranged on substantially the same plane as the floor surface 3b of the upper floor 3. The boarding / alighting plate 14 covers the machine room 4a on the lower floor and is provided at the boarding / alighting port on the lower floor 4. The boarding / alighting board 14 is arranged on substantially the same plane as the floor surface 4b of the lower floor 4.

When the passenger conveyor 1 as an escalator operates in the downward direction, the plurality of steps 12 are horizontally advanced from the truss 11 with the adjacent steps 12 in the traveling direction at the entrance / exit of the upper floor 3, and the upper transition occurs. In the curve, the step is changed in a step shape while expanding the step between the adjacent steps 12, and in the middle tilted part, it is descended in a step shape, and in the lower transition curve, the step is changed horizontally while reducing the step between the adjacent steps 12. Then, at the entrance / exit of the lower floor 4, it becomes horizontal again and enters the truss 11. Then, the plurality of steps 12 are inverted upward after entering the truss 11, are horizontally ascended on the return route side, are inverted again, and advance from the inside of the truss 11 at the entrance / exit of the upper floor 3. In the passenger conveyor 1 operating in the ascending direction, the above operation is reversed.

The traveling direction of the step 12 changes according to the movement of the step 12. That is, the traveling direction of the step 12 is substantially horizontal in the vicinity of the entrances / exits of the upper floor 3 and the lower floor 4, and diagonally upward or diagonally downward in the upper transition curve, the intermediate inclined portion, and the lower transition curve. Will be. Generally, the traveling direction of the step 12 in the horizontal direction is a predetermined direction or the opposite direction (left-right direction in FIG. 1), but when the passenger conveyor 1 curves, the traveling direction of the step 12 in the horizontal direction is also the passenger. It changes according to the movement of the conveyor 1. The traveling direction of the step 12 in the horizontal direction may also be referred to as a front-rear direction.

The support member 15 is provided at one end 11a of the truss 11 in the traveling direction of the step 12. The end portion 11a is also one end portion of the truss 11 in the front-rear direction. The end portion 11a faces the upper floor 3 in the substantially horizontal direction via a predetermined interval.

The support member 15 is, for example, a so-called L-shaped angle member formed in a plate shape bent in a substantially L shape. The support member 15 has a mounting portion 15a and a support portion 15b. The mounting portion 15a is attached to the end portion 11a of the truss 11 by, for example, a bolt. The support portion 15b extends from the upward end of the mounting portion 15a in the traveling direction of the step 12.

The support portion 15b is supported by a first receiving surface 3c provided on the upper floor 3. The first receiving surface 3c is a substantially horizontal plane facing upward. The first receiving surface 3c is recessed from the floor surface 3b of the upper floor 3. The support portion 15b is slidably supported by the first receiving surface 3c in the sliding direction Ds along the first receiving surface 3c. In the present embodiment, the sliding direction Ds is the front-rear direction. The sliding direction Ds includes a substantially horizontal one-way Ds1 and a substantially horizontal opposite direction Ds2. The directions Ds1 and Ds2 may be referred to as sliding directions.

The support member 16 is provided at the other end 11b of the truss 11 in the traveling direction of the step 12. The end portion 11b is also the other end portion of the truss 11 in the front-rear direction. The end portion 11b faces the lower floor 4 in a substantially horizontal direction via a predetermined interval.

The support member 16 is, for example, a so-called L-shaped angle member formed in a plate shape bent in a substantially L shape. The support member 16 has a mounting portion 16a and a support portion 16b. The mounting portion 16a is mounted to the end portion 11b of the truss 11 by, for example, a bolt. The support portion 16b extends from the upward end of the mounting portion 16a in the traveling direction of the step 12.

The support portion 16b is supported by a first receiving surface 4c provided on the lower floor 4. The first receiving surface 4c is a substantially horizontal plane facing upward. The first receiving surface 4c is recessed from the floor surface 4b of the lower floor 4. The support portion 16b is slidably supported by the first receiving surface 4c in the sliding direction Ds. Therefore, the support members 15 and 16 and the truss 11 can move integrally with the building 2 in the sliding direction Ds, for example, when an earthquake occurs.

FIG. 2 is a perspective view showing the existing intermediate support structure 17A of the first embodiment. FIG. 3 is a perspective view showing the earthquake-resistant intermediate support structure 17B of the first embodiment. In the present embodiment, the existing intermediate support structure 17A is modified into an earthquake-resistant intermediate support structure 17B. In the following description, the intermediate support structure 17 includes an existing intermediate support structure 17A, an earthquake-resistant intermediate support structure 17B, and an intermediate support structure 17 during earthquake-resistant work.

As shown in FIG. 1, the intermediate support structure 17 is provided between the upper floor 3 and the lower floor 4 of the passenger conveyor 1. The intermediate support structure 17 is interposed between, for example, the lower chord member 21 provided on the truss 11 and the receiving beam 22 provided on the building 2, and supports the truss 11 between the upper floor 3 and the lower floor 4. do. The intermediate support structure 17 may be interposed between the truss 11 and the floor surface 4b of the lower floor 4, for example.

The lower chord member 21 forms the lower part of the truss 11. As shown in FIG. 2, in the truss 11, two lower chord members 21 are arranged in the width direction Dw with an interval. The width direction Dw is a direction orthogonal to and horizontal to the traveling direction. According to another expression, the width direction Dw is a direction along the first receiving surfaces 3c and 4c and is a direction orthogonal to the sliding direction Ds. The truss 11 further has, for example, an upper chord member and other skeletons connected to the lower chord member 21, and is formed in a frame shape including the lower chord member 21.

Each of the lower chord members 21 has a sloping wall 25. The inclined wall 25 is provided in the intermediate inclined portion of the passenger conveyor 1, and extends in an oblique direction between the upper floor 3 and the lower floor 4. In other words, the sloping wall 25 extends diagonally from the upper floor 3 to the lower floor 4.

The inclined wall 25 has a lower surface 25a. The lower surface 25a is a substantially flat surface facing diagonally downward. The lower chord member 21 further has a vertical wall 26 extending upward from the end of the inclined wall 25 in the width direction Dw, and is formed in a substantially L-shaped plate shape.

The receiving beam 22 is, for example, a beam extending in the width direction Dw. The receiving beam 22 is located between the upper floor 3 and the lower floor 4 in the vertical direction. The receiving beam 22 may be arranged on substantially the same plane as the lower floor 4. The receiving beam 22 has an upper surface 22a. The upper surface 22a is a substantially horizontal plane facing upward. The upper surface 22a faces the lower surface 25a of the inclined wall 25 via an interval.

The intermediate support structure 17A has two first support bases 41, two first intermediate supports 42, two first steady rest members 43, and a first connecting beam 44. The first intermediate support 42 is also referred to as an existing intermediate support. The intermediate support structure 17A may have other parts, or the first steady rest member 43 and the first connecting beam 44 may be omitted.

FIG. 4 is a cross-sectional view showing the existing intermediate support structure 17A of the first embodiment. FIG. 5 is a front view showing the existing intermediate support structure 17A of the first embodiment. As shown in FIG. 5, the two first support bases 41 are attached to the receiving beam 22 of the building 2 with an interval in the width direction Dw. Each of the first support bases 41 has an existing support base 51 and at least one adjusting member 52. The first support base 41 is not limited to this example, and may be, for example, a single member.

The existing support base 51 is attached to the upper surface 22a so as to project upward from the upper surface 22a of the receiving beam 22. The existing support 51 is attached to the receiving beam 22 by, for example, a plurality of bolts 53. The existing support 51 may be attached to the receiving beam 22 by other means such as welding. The existing support 51 has an upper surface 51a. The upper surface 51a is a substantially horizontal plane facing upward. The upper surface 51a faces the lower surface 25a of the inclined wall 25 via an interval.

The adjusting member 52 is formed, for example, in a substantially flat plate shape. The adjusting member 52 may be formed in another shape. The adjusting member 52 is arranged on the upper surface 51a of the existing support base 51. When the first support base 41 has a plurality of adjusting members 52, the plurality of adjusting members 52 are loaded on the upper surface 51a.

At least one adjusting member 52 has a second receiving surface 52a. The second receiving surface 52a is a substantially horizontal plane facing upward. The second receiving surface 52a faces the lower surface 25a of the inclined wall 25 via an interval.

When the first support base 41 has one adjusting member 52, the second receiving surface 52a is the upper surface of the adjusting member 52. When the first support base 41 has a plurality of adjusting members 52, the second receiving surface 52a is the upper surface of the adjusting member 52 located at the uppermost position among the plurality of adjusting members 52. Therefore, the position of the second receiving surface 52a in the vertical direction is adjusted by the number of the adjusting members 52.

As shown in FIG. 4, the two first intermediate supports 42 are attached to the two lower chord members 21 so as to project downward from the lower chord members 21 of the truss 11, respectively. For example, the first intermediate support 42 is attached to the lower surface 25a of the inclined wall 25 by welding. The first intermediate support 42 may be attached to the inclined wall 25 by other means such as bolts.

The first intermediate support 42 has a lower wall 55 and a vertical wall 56. The lower wall 55 is separated below the portion of the lower surface 25a of the inclined wall 25 to which the first intermediate support 42 is attached. The standing wall 56 is formed in a substantially U-shape open to the inside in the width direction Dw, for example, and extends upward from the lower wall 55. The inside of the width direction Dw is a direction toward the center of the truss 11 in the width direction Dw. The upper end of the vertical wall 56 is welded to the lower surface 25a of the inclined wall 25.

The lower wall 55 has a bottom surface 55a. The bottom surface 55a is a substantially horizontal plane facing downward. The bottom surface 55a is supported substantially vertically by the second receiving surface 52a of the adjusting member 52. In the present embodiment, the bottom surface 55a abuts on the second receiving surface 52a. However, the bottom surface 55a may be supported by the second receiving surface 52a via other parts.

As shown in FIG. 5, each of the two first steady rest members 43 is attached to the corresponding first support base 41. For example, the first steady rest member 43 is attached to the existing support base 51 so as to project upward from the upper surface 51a.

The first steady rest member 43 abuts on the edge 55b of the lower wall 55 inside the width direction Dw, or is located in the vicinity of the edge 55b. The first steady rest member 43 abuts on the edge 55b to limit the truss 11 from moving in the width direction Dw with respect to the building 2.

The first connecting beam 44 extends in the width direction Dw. One end of the first connecting beam 44 is attached to the standing wall 56 of one first intermediate support 42. The other end of the first connecting beam 44 is attached to the standing wall 56 of the other first intermediate support 42. As a result, the first connecting beam 44 connects the two first intermediate supports 42.

As shown in FIG. 3, the earthquake-resistant intermediate support structure 17B includes two first intermediate supports 42, two second support bases 61, two earthquake-resistant parts 62, and a second runout. It has a stop member 63 and a second connecting beam 64. Note that FIG. 3 shows one of the two first intermediate supports 42. The second support 61 may also be referred to as a support. The intermediate support structure 17B may have other parts, or the second steady rest member 63 and the second connecting beam 64 may be omitted.

FIG. 6 is a cross-sectional view showing the earthquake-resistant intermediate support structure 17B of the first embodiment. FIG. 7 is a front view showing the earthquake-resistant intermediate support structure 17B of the first embodiment. As shown in FIG. 7, the two second support bases 61 are attached to the receiving beam 22 of the building 2 in the width direction Dw via a gap instead of the first support base 41.

The second support base 61 is attached to the upper surface 22a so as to project upward from the upper surface 22a of the receiving beam 22. The second support base 61 is attached to the receiving beam 22 by, for example, an anchor bolt or a spring pin. The second support base 61 may be attached to the receiving beam 22 by other means such as welding.

Each of the second support bases 61 has a third receiving surface 61a. The third receiving surface 61a is a substantially horizontal plane facing upward. The third receiving surface 61a faces the lower surface 25a of the inclined wall 25 via an interval. In the present embodiment, the third receiving surface 61a of the second support base 61 is located below the second receiving surface 52a of the first support base 41. The positions of the third receiving surface 61a and the second receiving surface 52a are not limited to this example.

As shown in FIG. 6, the two seismic components 62 each have a second intermediate support 71, a sliding member 72, at least one first adjusting member 73, and at least one second adjusting member. It has 74 and a jack bolt 75. The seismic components 62 are not limited to this example.

The second intermediate support 71 is attached to the two lower chord members 21 so as to project downward from the lower chord members 21 of the truss 11. The second intermediate support 71 has an inclined support wall 81, a lower wall 82, an outer standing wall 83, a support wall 84, and an inner standing wall 85. The second intermediate support 71 is not limited to this example.

The inclined support wall 81 extends diagonally along the lower surface 25a of the inclined wall 25. The inclined support wall 81 has a first support surface 81a. The first support surface 81a is a substantially flat surface facing diagonally upward. The first support surface 81a is arranged substantially parallel to the lower surface 25a of the inclined wall 25 and faces the lower surface 25a. The first support surface 81a supports the inclined wall 25 of the truss 11 in an oblique direction.

FIG. 8 is a perspective view showing the seismic resistant component 62 of the first embodiment. FIG. 9 is a side view showing the seismic resistant component 62 of the first embodiment. As shown in FIG. 8, the inclined support wall 81 is provided with an opening 81b. The opening 81b penetrates the inclined support wall 81 so as to open to the first support surface 81a. By providing the opening 81b, the first support surface 81a is provided with the first region 81aa and the second region 81ab.

The first region 81aa and the second region 81ab are separated from each other in the sliding direction Ds. The opening 81b is provided between the first region 81aa and the second region 81ab. The opening 81b in FIG. 8 is a gap that separates the inclined support wall 81 into two portions. Therefore, the inclined support wall 81 includes one member having a first region 81aa and another member having a second region 81ab. The opening 81b may be a notch open inside the width direction Dw or a hole.

As shown in FIG. 6, the first intermediate support 42 passes through the opening 81b. In other words, the inclined support wall 81 is provided with an opening 81b so as to avoid the first intermediate support 42. In the sliding direction Ds, the first intermediate support 42 is located between the first region 81aa and the second region 81ab.

The inclined support wall 81 is attached to the inclined wall 25 by, for example, a plurality of bolts 87. The bolt 87 passes through, for example, a plurality of holes 81c opened in the first region 81aa and the second region 81ab, and is inserted into the screw hole 25b provided in the inclined wall 25. Therefore, the first intermediate support 42 is located between the two bolts 87 in the sliding direction Ds. The inclined support wall 81 may be attached to the lower surface 25a of the inclined wall 25 by other means such as welding.

The lower wall 82 is separated downward from the inclined support wall 81. The lower wall 82 has a lower surface 82a. The lower surface 82a is a substantially horizontal plane facing downward. The lower surface 82a is longer than the bottom surface 55a of the first intermediate support 42 in the sliding direction Ds. The lower surface 82a is separated upward from the second support base 61 and faces the third receiving surface 61a of the second support base 61 via an interval.

The outer wall 83 is formed, for example, in a substantially U shape open to the inside in the width direction Dw, and extends upward from the lower wall 82. The upper end of the outer wall 83 is welded to the sloping support wall 81. The outer wall 83 surrounds the hole 81c of the inclined support wall 81.

The support wall 84 is separated downward from the portion of the lower surface 25a of the inclined wall 25 to which the first intermediate support 42 is attached. In the present embodiment, the support wall 84 is located between the bottom surface 55a of the first intermediate support 42 and the lower wall 82. In the vertical direction, the support wall 84 is located between the inclined support wall 81 and the lower wall 82.

The support wall 84 has a second support surface 84a. The second support surface 84a is a substantially horizontal plane facing upward. The second support surface 84a is arranged substantially parallel to the bottom surface 55a of the first intermediate support 42 and faces the bottom surface 55a. The second support surface 84a supports the bottom surface 55a of the first intermediate support 42 in a substantially vertical direction.

The second support surface 84a has substantially the same length as the bottom surface 55a in the sliding direction Ds. The second support surface 84a may be longer or shorter than the bottom surface 55a in the sliding direction Ds. The second support surface 84a is shorter than the lower surface 82a of the lower wall 82 in the sliding direction Ds.

The support wall 84 is attached to the lower wall 55 of the first intermediate support 42 by, for example, a plurality of bolts 88. The bolt 88 passes through, for example, a plurality of holes 55c provided in the lower wall 55 and is inserted into a screw hole 84b provided in the support wall 84. The support wall 84 may be attached to the bottom surface 55a of the lower wall 55 by other means such as welding.

The inner wall 85 is formed, for example, in a substantially U shape open to the inside in the width direction Dw, and extends upward from the lower wall 82. The upper end of the inner wall 85 is welded to the support wall 84. The inner wall 85 is surrounded by the outer wall 83.

The sliding member 72 is located between the lower surface 82a of the lower wall 82 of the second intermediate support 71 and the third receiving surface 61a of the second support base 61. The sliding member 72 has a sliding surface 72a and an upper surface 72b.

The sliding surface 72a is a substantially horizontal plane facing downward. The sliding surface 72a is longer than the bottom surface 55a of the first intermediate support 42 in the sliding direction Ds. Further, the sliding surface 72a is longer than the second support surface 84a of the second intermediate support 71 in the sliding direction Ds (one-way Ds1). Further, the sliding surface 72a is longer than the third receiving surface 61a of the second support 61 in the sliding direction Ds.

The sliding surface 72a is arranged substantially parallel to the third receiving surface 61a of the second support base 61 and faces the third receiving surface 61a. The sliding surface 72a is slidably supported in the sliding direction Ds (one-way Ds1 and the opposite direction Ds2) by the third receiving surface 61a in a substantially vertical direction. In the present embodiment, the sliding surface 72a abuts on the third receiving surface 61a. However, the sliding surface 72a may be supported by the third receiving surface 61a via other parts.

The upper surface 72b is a substantially horizontal surface that is located on the opposite side of the sliding surface 72a and faces upward. The upper surface 72b is arranged substantially parallel to the lower surface 82a of the second intermediate support 71, and faces the lower surface 82a via an interval.

The first adjusting member 73 is formed, for example, in a substantially flat plate shape. The first adjusting member 73 may be formed in another shape. At least one first adjusting member 73 is interposed between the lower surface 82a of the second intermediate support 71 and the upper surface 72b of the sliding member 72. When the seismic components 62 have a plurality of first adjusting members 73, the plurality of first adjusting members 73 are laminated between the second intermediate support 71 and the sliding member 72.

The sliding member 72 supports the second intermediate support 71 via at least one first adjusting member 73. The number of the first adjusting members 73 adjusts the distance between the lower surface 82a of the second intermediate support 71 and the upper surface 72b of the sliding member 72.

As shown in FIG. 9, in the seismic components 62, the second support surface 84a of the second intermediate support 71 and the sliding surface 72a of the sliding member 72 are the support wall 84, the inner wall 85, and the bottom. They are located on opposite sides of each other via a wall 82, at least one first adjusting member 73, and a sliding member 72. Therefore, the distance between the second support surface 84a of the second intermediate support 71 and the sliding surface 72a of the sliding member 72 is also adjusted by the number of the first adjusting members 73.

The seismic-resistant component 62 has an adjusting portion 62a that can adjust the distance between the second support surface 84a of the second intermediate support 71 and the sliding surface 72a of the sliding member 72. The adjusting unit 62a in the present embodiment is at least one first adjusting member 73. The adjusting portion 62a is not limited to this example, and has, for example, a jack bolt, a jack, a wedge, a filler, or other means capable of adjusting the distance between the second support surface 84a and the sliding surface 72a. You may.

The number of the first adjusting members 73 is such that the position of the sliding surface 72a of the sliding member 72 in the vertical direction is such that the sliding surface 72a abuts on the third receiving surface 61a of the second support base 61. Set to place. As a result, it is possible to prevent the intermediate support structure 17 from being compressed or the truss 11 from being distorted between the truss 11 and the receiving beam 22.

The second intermediate support 71, the sliding member 72, and at least one first adjusting member 73 are attached to each other by, for example, a plurality of bolts 89. The bolt 89 is inserted into the screw hole 72c opened in the upper surface 72b of the sliding member 72 through, for example, the hole 82b provided in the lower wall 82 and the notch 73a provided in the first adjusting member 73. To. The second intermediate support 71, the sliding member 72, and at least one first adjusting member 73 may be attached to each other by other means such as welding.

As shown in FIG. 6, the second adjusting member 74 is, for example, a shim and is formed in a substantially flat plate shape provided with a notch. The second adjusting member 74 may be formed in another shape. Further, the second adjusting member 74 may also be referred to as a spacer.

The at least one second adjusting member 74 is between the first support surface 81a of the second intermediate support 71 and the lower surface 25a of the truss 11, and the second support surface 84a of the second intermediate support 71. Intervenes in at least one of the bottom surface 55a of the first intermediate support 42. When the seismic component 62 has a plurality of second adjusting members 74, the plurality of second adjusting members 74 are between the second intermediate support 71 and the truss 11, and the second intermediate support 71 and the second. At least one of the intermediate supports 42 of 1 is laminated.

The number and position of the second adjusting member 74 are set so that the lower surface 82a of the second intermediate support 71 and the sliding surface 72a of the sliding member 72 are substantially horizontal. Therefore, the first support surface 81a of the second intermediate support 71 and the lower surface 25a of the truss 11 may have a portion that comes into direct contact with each other without the intervention of the second adjusting member 74. Further, even if the second support surface 84a of the second intermediate support 71 and the bottom surface 55a of the first intermediate support 42 have a portion that is in direct contact with each other without passing through the second adjusting member 74. good.

At least one of the first adjusting member 73 and the second adjusting member 74 may be omitted. For example, when the sliding surface 72a of the sliding member 72 comes into contact with the third receiving surface 61a of the second support base 61 without providing the first adjusting member 73, the first adjusting member 73 is omitted. May be done. Further, when the lower surface 82a of the second intermediate support 71 and the sliding surface 72a of the sliding member 72 are arranged substantially horizontally without providing the second adjusting member 74, the second adjusting member 74 It may be omitted.

The jack bolt 75 is attached to a screw hole 82c provided in the lower wall 82 of the second intermediate support 71. The jack bolt 75 projects from the lower surface 82a of the lower wall 82, passes through the notches 72d and 73b provided in the sliding member 72 and the first adjusting member 73, and passes through the notches 72d and 73b, and the third receiving surface 61a of the second support base 61. Contact with. The jack bolt 75 may be omitted.

As shown in FIG. 7, the second steady rest member 63 is attached to two second support bases 61. For example, the second steady rest member 63 is attached to the second support base 61 so as to project upward from the third receiving surface 61a. As shown in FIG. 6, the second steady rest member 63 and the second support base 61 are attached to each other, for example, from 91 to a spring pin.

As shown in FIG. 7, the second steady rest member 63 abuts on the edge 72e of the sliding member 72 inside the width direction Dw, or is located in the vicinity of the edge 72e. The second steady rest member 63 abuts on the edge 72e to limit the truss 11 from moving in the width direction Dw with respect to the building 2.

The second connecting beam 64 extends in the width direction Dw. One end of the second connecting beam 64 is attached to the outer wall 83 of the second intermediate support 71 by, for example, a bolt 92. The other end of the second connecting beam 64 is attached to the outer standing wall 83 of the other second intermediate support 71 by, for example, a bolt 92. As a result, the second connecting beam 64 connects the two second intermediate supports 71.

Hereinafter, a part of the seismic resistance method of the passenger conveyor 1 will be illustrated. The method for making the passenger conveyor 1 earthquake resistant is not limited to the following method, and other methods may be used. The passenger conveyor 1 is made earthquake-resistant, for example, when the building 2 is expanded or remodeled. In the following earthquake resistance method, for example, the existing intermediate support structure 17A is modified to the intermediate support structure 17B that meets the so-called "14 earthquake resistance" standard stipulated in the 2013 Ministry of Land, Infrastructure, Transport and Tourism Notification No. 1046 in Japan. Will be done. The seismic standards to which the intermediate support structure 17B conforms are not limited to "14 seismic resistance".

First, the first support base 41, the first steady rest member 43, and the first connecting beam 44 in FIG. 2 are removed. When at least one of the first support base 41, the first steady rest member 43, and the first connecting beam 44 is welded, the weld marks are flattened.

Next, a plurality of screw holes 25b are formed in the inclined wall 25 of the truss 11 by tapping, for example. Further, a plurality of holes 55c are formed in the lower wall 55 of the first intermediate support 42 by, for example, drilling or drilling.

Next, the second intermediate support 71 of FIG. 6 is attached to the first intermediate support 42. For example, the support wall 84 of the second intermediate support 71 and the lower wall 55 of the first intermediate support 42 are attached to each other by bolts 88.

Next, the second intermediate support 71 is attached to the truss 11. For example, the inclined support wall 81 of the second intermediate support 71 and the inclined wall 25 of the truss 11 are attached to each other by bolts 87.

Next, at least one second adjusting member 74 is located between the second intermediate support 71 and the truss 11 and between the second intermediate support 71 and the first intermediate support 42. Intervened in at least one. For example, at least one second adjusting member 74 is a gap between the second intermediate support 71 and the truss 11 and a gap between the second intermediate support 71 and the first intermediate support 42. Will be inserted into.

The second adjusting member 74 is inserted into the gap so that the bolts 87 and 88 can be inserted into the notches provided in the second adjusting member 74. As a result, the second adjusting member 74 can avoid the bolts 87 and 88, and the second adjusting member 74 is prevented from interfering with the bolts 87 and 88.

By adjusting the number and position of the second adjusting member 74 between the second intermediate support 71 and the truss 11 and between the second intermediate support 71 and the first intermediate support 42. , The lower surface 82a of the second intermediate support 71 is adjusted to be substantially horizontal. After the lower surface 82a is adjusted to be substantially horizontal, the second intermediate support 71 is fixed to the truss 11 and the first intermediate support 42 by bolts 87 and 88.

Next, the second support base 61 is attached to the receiving beam 22 of the building 2. For example, the second support base 61 and the receiving beam 22 are attached to each other by anchor bolts or spring pins. The second support base 61 may be attached to the receiving beam 22 before the second intermediate support 71 is attached to the truss 11 and the first intermediate support 42.

Next, the sliding member 72 is attached to the second intermediate support 71. For example, with the jack bolt 75 maintaining the distance between the lower wall 82 of the second intermediate support 71 and the second support 61, the sliding member 72 is the third support 61 of the second support 61. It is placed on the receiving surface 61a. Further, at least one first adjusting member 73 is interposed between the lower wall 82 and the sliding member 72.

For example, the sliding member 72 and at least one first adjusting member 73 are inserted into the gap between the lower wall 82 and the second support base 61. The sliding member 72 and the first adjusting member 73 are inserted into the gap so that the jack bolt 75 can be inserted into the notches 72d and 73b. As a result, the sliding member 72 and the first adjusting member 73 can avoid the jack bolt 75, and the sliding member 72 and the first adjusting member 73 are prevented from interfering with the jack bolt 75.

By adjusting the number of the first adjusting members 73 between the second intermediate support 71 and the sliding member 72, the position of the sliding surface 72a of the sliding member 72 in the vertical direction is changed to the sliding member. The 72 is appropriately adjusted so as to be slidable on the third receiving surface 61a of the second support base 61. After the position of the sliding surface 72a is adjusted, the second intermediate support 71, the sliding member 72, and the first adjusting member 73 are fixed to each other by the bolt 89.

Next, the second steady rest member 63 is attached to the second support base 61. For example, the second steady rest member 63 and the second support base 61 are attached to each other by the spring pin 91.

Next, the second connecting beam 64 connects the two second intermediate supports 71. For example, both ends of the second connecting beam 64 are attached to the two second intermediate supports 71 by bolts 92. The second connecting beam 64 may be attached to the second intermediate support 71 before the second steady rest member 63 is attached to the second support base 61.

As a result, the existing intermediate support structure 17A is renovated into an earthquake-resistant intermediate support structure 17B. The above-mentioned seismic resistance method for the passenger conveyor 1 can be carried out without welding, and sparks, heat, and noise due to welding can be suppressed in the building 2.

For example, when an earthquake occurs, the sliding member 72 can slide on the third receiving surface 61a of the second support base 61 in the sliding direction Ds. In the sliding direction Ds, the sliding surface 72a of the sliding member 72 is longer than, for example, the bottom surface 55a of the first intermediate support 42. Therefore, even if the sliding member 72 slides on the third receiving surface 61a, the length (hanging allowance) in the sliding direction Ds in which the sliding member 72 is supported by the third receiving surface 61a is sufficient. It is secured and the sliding member 72 is prevented from falling off from the second support 61.

In the method for making the passenger conveyor 1 earthquake-resistant according to the first embodiment described above, the existing first support base 41 is removed, the second intermediate support 71 is attached to the truss 11, and the third one. A second support 61 having a receiving surface 61a is attached to the building 2. Then, a sliding surface 72a that faces downward and is longer than the bottom surface 55a of the first intermediate support 42 in the sliding direction Ds and is slidably supported by the third receiving surface 61a in the sliding direction Ds. The sliding member 72 is attached to the second intermediate support 71. As a result, for example, when an earthquake occurs, the truss 11, the second intermediate support 71, and the sliding member 72 slide in the sliding direction while being accompanied by sliding between the sliding surface 72a and the third receiving surface 61a. You can move to Ds. Since the sliding surface 72a of the sliding member 72 is longer in the sliding direction Ds than the bottom surface 55a of the existing first intermediate support 42, a sufficient hooking allowance can be secured in the sliding direction Ds. It is suppressed from falling off from the receiving surface 61a of 3.

At least one first adjusting member 73 is interposed between the second intermediate support 71 and the sliding member 72. As a result, the position of the sliding surface 72a can be adjusted by adjusting the number of the first adjusting members 73 at the site where the earthquake-resistant work of the passenger conveyor 1 is performed. Therefore, the sliding surface 72a and the third receiving surface 61a can come into contact with each other at appropriate positions.

The second intermediate support 71 has a second support surface 84a that supports the bottom surface 55a. The second intermediate support 71 is attached to the first intermediate support 42. This eliminates the need to remove the first intermediate support 42 from the truss 11, and can reduce the working time and cost at the site. Further, by attaching the second intermediate support 71 to the first intermediate support 42, the strength of the intermediate support structure 17 of the passenger conveyor 1 is improved.

At least one second adjusting member 74 is interposed between the second intermediate support 71 and the truss 11 and between the second intermediate support 71 and the first intermediate support 42. do. As a result, the position and levelness of the sliding surface 72a can be adjusted by adjusting the number and position of the second adjusting member 74 at the site. Therefore, the sliding surface 72a and the third receiving surface 61a can come into contact with each other in parallel and substantially horizontally.

In the seismic component 62, the first support surface 81a supports the truss 11, and the second support surface 84a supports the bottom surface 55a of the first intermediate support 42 protruding from the truss 11. Further, the sliding surface 72a is located on the opposite side of the second support surface 84a and is longer than the second support surface 84a in the one-way Ds1 (sliding direction Ds) along the second support surface 84a. It is slidably supported by the second support base 61 in one direction Ds1. That is, the seismic components 62 replaces the bottom surface 55a slidably supported by the second support base 61 with a sliding surface 72a that can be formed longer in one direction Ds1 than the bottom surface 55a. .. Therefore, the sliding surface 72a can secure a sufficient hooking allowance in the one-way Ds1 instead of the bottom surface 55a, and is prevented from falling off from the second support base 61. The seismic-resistant components 62 make it possible to carry out seismic-resistant works that prolong the cost without removing the first intermediate support 42, and can reduce the work time and cost at the site. Further, the adjusting portion 62a can adjust the distance between the second support surface 84a and the sliding surface 72a. As a result, the position of the sliding surface 72a can be adjusted in the field, and the sliding surface 72a and the second support base 61 can come into contact with each other at an appropriate position.

(Second embodiment)
Hereinafter, a part of the seismic resistance method of the passenger conveyor 1 in the second embodiment will be described. In the description of the following embodiments, the components having the same functions as the components already described may be designated by the same reference numerals as those described above, and the description may be omitted. Further, the plurality of components with the same reference numerals do not necessarily have all the functions and properties in common, and may have different functions and properties according to each embodiment.

In the second embodiment, the existing intermediate support structure 17A is modified into an earthquake-resistant intermediate support structure 17B accompanied by welding. Further, the intermediate support structure 17B of the second embodiment has two second support bases 61, two seismic resistant parts 62, a second steady rest member 63, and a second connecting beam 64. However, it does not have the first intermediate support 42.

First, the first support base 41, the first intermediate support 42, the first steady rest member 43, and the first connecting beam 44 are removed. When at least one of the first support base 41, the first intermediate support 42, the first steady rest member 43, and the first connecting beam 44 is welded, the weld marks are flattened.

Next, the second intermediate support 71 is attached to the truss 11. For example, the inclined support wall 81 of the second intermediate support 71 and the inclined wall 25 of the truss 11 are attached to each other by welding.

Next, the second support base 61 is attached to the receiving beam 22 of the building 2. For example, the second support base 61 and the receiving beam 22 are attached to each other by welding. The second support base 61 may be attached to the receiving beam 22 before the second intermediate support 71 is attached to the truss 11.

Next, the sliding member 72 is attached to the second intermediate support 71. For example, with the jack bolt 75 maintaining the distance between the lower wall 82 of the second intermediate support 71 and the second support 61, the sliding member 72 is the third support 61 of the second support 61. It is placed on the receiving surface 61a. Further, at least one first adjusting member 73 is interposed between the lower wall 82 and the sliding member 72. Then, the second intermediate support 71, the sliding member 72, and the first adjusting member 73 are fixed to each other by the bolt 89.

Next, the second steady rest member 63 is attached to the second support base 61. For example, the second steady rest member 63 and the second support base 61 are attached to each other by welding.

Next, the second connecting beam 64 connects the two third receiving surfaces 61a. For example, both ends of the second connecting beam 64 are attached to the two third receiving surfaces 61a by welding. The second connecting beam 64 may be attached to the third receiving surface 61a before the second steady rest member 63 is attached to the second support base 61.

As a result, the existing intermediate support structure 17A is renovated into an earthquake-resistant intermediate support structure 17B. In the above-mentioned seismic resistance method for the passenger conveyor 1, the strength of the intermediate support structure 17 can be further increased by using welding.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Passenger conveyor, 2 ... Building, 3c, 4c ... First receiving surface, 11 ... Truss, 11a, 11b ... Ends, 12 ... Steps, 15, 16 ... Support members, 41 ... First support stand, 42 ... 1st intermediate support (existing intermediate support), 52a ... 2nd receiving surface, 55a ... bottom surface, 61 ... second supporting base (supporting base), 61a ... third receiving surface, 62 ... earthquake resistant Chemical parts, 62a ... Adjusting part, 71 ... Second intermediate support, 72 ... Sliding member, 72a ... Sliding surface, 73 ... First adjusting member, 74 ... Second adjusting member, 81a ... First Support surface, 84a ... Second support surface, Ds ... Sliding direction, Ds1 ... One direction.

Claims (5)

With the truss,
A plurality of steps connected in an endless manner so as to be circulated along the truss,
It is provided at the end of the truss in the traveling direction of the plurality of steps, and is provided on a building and is slidably supported on a first receiving surface facing upward in a sliding direction along the first receiving surface. With the support member
A first support that is attached to the building and has a second receiving surface that faces upward.
A first intermediate support that projects downward from the truss, faces downward, and has a bottom surface supported by the second receiving surface.
It is a method of making a passenger conveyor earthquake-resistant.
Removing the first support stand and
Attaching a second intermediate support having a first support surface to support the truss to the truss,
Attaching a second support base with an upwardly facing third receiving surface to the building
A sliding member having a sliding surface that faces downward, is longer than the bottom surface in the sliding direction, and is slidably supported by the third receiving surface in the sliding direction, is supported by the second intermediate support. Attaching to the body and
How to make a passenger conveyor earthquake resistant. The method for making a passenger conveyor earthquake-resistant according to claim 1, further comprising interposing at least one first adjusting member between the second intermediate support and the sliding member. The method for making a passenger conveyor according to claim 1 or 2 earthquake-resistant, further comprising attaching the second intermediate support having a second support surface for supporting the bottom surface to the first intermediate support. At least one second adjusting member is interposed between the second intermediate support and the truss, and between the second intermediate support and the first intermediate support. The method for making the passenger conveyor earthquake-resistant according to claim 3, further comprising the above. A first support surface configured to support the truss,
A second support surface configured to support the bottom surface of the existing intermediate support protruding from the truss, and
It is located on the opposite side of the second support surface, is longer than the second support surface in one direction along the second support surface, and is slidably supported by the support base in one direction. With the constructed sliding surface,
An adjusting unit that can adjust the distance between the second support surface and the sliding surface,
Seismic parts equipped with.

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