JP5456837B2 - Escalator - Google Patents

Description

  Embodiments of the present invention relate to escalators.

  The truss of the escalator is installed between the pedestal of the building beam on the upper floor of the building and the pedestal of the building beam on the lower floor side. For this truss, the support angle of either the upper floor or the lower floor is fixed to the pedestal of the building beam by welding etc. for the seismic structure, and the other end is not fixed to absorb the shaking due to the earthquake. ing.

  In addition, even if the distance between building beams on the upper and lower floors is increased due to an earthquake or the like, the truss does not fall because the allowance is secured between the support angle and the cradle.

JP-A-5-294590 JP 2007-290785 A

  However, if the distance between the building beams increases beyond the assumed inter-layer displacement on the upper and lower floors due to a large earthquake, the truss may fall. Therefore, when the space between the building beams spreads more than expected, it may be structured so that the cradle fixed to the building and the support angle are caught, but the height adjustment fee when installing the truss varies from site to site There is a problem that it is difficult to provide the structure.

  Then, in view of the said problem, embodiment of this invention aims at providing the escalator which can prevent the fall of a truss even when the distance between building beams spreads more than assumption.

This embodiment includes an escalator truss installed between a pedestal of a building beam on the upper floor side of the building and a pedestal of the building beam on the lower floor side, and a front end and a rear end of the truss A support angle placed on each cradle, and one or a plurality of height adjustment plates provided between the support angle and the cradle, and the height adjusting plate includes a first adjustment plate, which is fixed to the support angle is fixed to the pedestal, and, have a, a second adjusting plate provided in the truss side of the first adjustment plate, the The second adjustment plate is an escalator that is fixed at a position where the first adjustment plate moves to the truss side along the front-rear direction .

It is a general view of the escalator of this embodiment. It is a top view of a support angle. It is a longitudinal cross-sectional view of a support angle and a receiving stand. It is a vertical cross-sectional view of a support angle and a cradle in a normal state. It is a top view of the adjustment plate at the normal time. It is a longitudinal cross-sectional view of the support angle and cradle when an earthquake occurs. It is a top view of the adjustment board at the time of the occurrence of an earthquake. It is a top view of the adjustment board of the example of a change.

  Hereinafter, the escalator 10 of one Embodiment of this invention is demonstrated based on FIGS.

(1) Structure of escalator 10 The whole structure of the escalator 10 is demonstrated based on FIG.

  The truss 12 of the escalator 10 is bridged between the cradle 2 installed on the building beam 4 on the upper floor side of the building 1 and the cradle 3 installed on the building beam 5 on the lower floor side. The truss 12 includes an upper floor horizontal truss 14, an inclined truss 16, and a lower floor horizontal truss 18. The interior of the horizontal truss 14 on the upper floor side is a machine room 20. A step drive mechanism (not shown) that drives the escalator 10 is provided inside the machine room 20. Further, the inclined truss 16 is provided with a step 22 that is driven by an endless step chain and is moved upward or downward by the step driving mechanism described above.

  A pair of left and right balustrades 24 are provided on both sides of the upper surface of the truss 12, and a handrail belt 26 that moves in synchronization with the steps 22 is provided on the balustrade 24.

  An upper floor support angle 28 is provided at the end of the upper floor horizontal truss 14, and is placed on the upper floor support 2 via a plurality of adjustment plates 40 for adjusting the height. ing. The adjustment plate 40 on the upper floor side will be described in detail later.

  A support angle 30 on the lower floor side is provided at the end of the horizontal truss 18 on the lower floor side, and is placed on the receiving base 3 on the lower floor side via a plurality of adjustment plates 32 that adjust the height. It is fixed by welding to the cradle 3 on the lower floor side. In addition, a positioning plate 34 bent in an L-shape is provided on the receiving floor 3 on the lower floor side in order to position the support angle 30 on the lower floor side.

(2) Structure of Adjustment Plate 40 Next, the structure of the adjustment plate 40 will be described with reference to FIGS.

  The support angle 28 on the upper floor side is composed of a mounting plate 36 in a horizontal state and a fixing plate 38 bent downward from the mounting plate 36, and the fixing plate 38 is a horizontal truss 14 on the upper floor side. It is fixed to the end of the bolt with bolts.

  On the other hand, the cradle 2 is fixed to the upper surface of the building beam 4 by anchor bolts 6.

  The adjustment plate 40 includes a first adjustment plate 42 fixed to the support angle 28 and a second adjustment plate 44 fixed to the cradle 2. The first adjustment plate 42 has a rectangular shape, is located on the truss side of the first adjustment plate 42, and an extension plate 46 is provided from the second adjustment plate 44 toward the first adjustment plate 42. The extension plate 46 is provided at a position aligned with the first adjustment plate 42 in the left-right direction. The extension plate 46 and the first adjustment plate 42 are connected via two connecting portions 48 formed narrower than other portions, and the first adjustment plate 42, the second adjustment plate 44, and the extension The plate 46 and the connecting portion 48 are integrated to form a single adjustment plate 40.

  Further, the mounting plate 36 of the support angle 28 has a rectangular bolt hole 52 through which the anchor bolt 50 passes when the second adjustment plate 44 is fixed to the cradle 2.

(3) Fixing Method of Support Angle 28 A method of fixing the support angle 28 to the cradle 2 will be described.

  First, the operator adjusts the height by changing the number of the adjustment plates 40 in order to place the upper-level support angle 28 using the plurality of adjustment plates 32.

  Next, when the height adjustment is completed, the operator fixes the first adjustment plate 42 and the support angle 28 with the anchor bolts 54.

  Next, as shown in FIG. 3, since the bolt hole 52 is opened, the worker fixes the second adjustment plate 44 to the cradle 4 with the anchor bolt 50 from this portion. In this case, since the bolt hole 52 is opened in the support angle 28, the support angle 28 can be placed horizontally even if the head of the anchor bolt 50 protrudes from the second adjustment plate 44. As a result, the support angle 28 is fixed to the cradle 2.

(4) Role of Adjustment Plate 40 Next, the role of the adjustment plate 40 will be described with reference to FIGS.

  In a normal state where no earthquake or the like occurs, as shown in FIGS. 4 and 5, the first adjustment plate 42 and the second adjustment plate 44 are integrated via the extension plate 46 and the connecting portion 48. Thus, the support angle 28 can be maintained at a predetermined height.

  Next, when an earthquake occurs, as shown in FIGS. 6 and 7, when the dimension between the building beams 4 and 5 of the escalator 10 is enlarged by the seismic force, the extension plate 46 and the first adjustment plate are caused by the shearing force. It is separated by a connecting portion 48 that connects 42. However, since the second adjustment plate 44 is fixed to the cradle 2 and the moving first adjustment plate 42 is fixed to the support angle 28, the first adjustment plate 42 is held by the second adjustment plate 44, and 2 The adjustment plate 44 serves as a stopper and can prevent the truss 12 from falling. That is, when an earthquake occurs, a force is spread between the building bridges 4 and 5, and as shown in FIG. 5, a shearing force due to the seismic force is applied to the connecting portion 48, and this portion is divided, as shown in FIG. In addition, the first adjustment plate 42 is displaced from the divided connection portion 48 and hits the second adjustment plate 44. On the other hand, since the second adjustment plate 44 is fixed to the cradle 2 by the anchor bolts 54, the first adjustment plate 42 and the support angle 28 come into contact with each other and the truss 12 is not moved any more. Can be prevented.

(5) Effect According to the present embodiment, even if the distance between the building beams 4 and 5 increases, the first adjustment plate 42 is caught by the second adjustment plate 44 and the truss 12 does not fall. The height adjustment allowance can be adjusted by the number of the adjustment plates 40 even if they differ from site to site, and since the adjustment plate 40 also serves as a fall prevention structure as described above, it can be inexpensively handled at each site.

(6) Modification Example In the above embodiment, the first adjustment plate 42 and the second adjustment plate 44 are fixed to the support angle 28 and the cradle 2 with the anchor bolts 50 and 54, respectively. Also good.

  In the above embodiment, the separable adjustment plate 40 is provided on the upper floor side support angle 28. Alternatively, the adjustment plate 40 may be provided on the lower floor side support angle 30, and supports both upper and lower floors. The structure of this embodiment may be applied to the angles 28 and 30.

  In the above embodiment, the extension plate 46 is provided on the second adjustment plate 44. Instead, as shown in FIG. 8, the extension plate 46 is provided on the first adjustment plate 42, and the second adjustment plate 46 is provided. 44 and the extended plate 46 may be connected by a connecting portion 48.

  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, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Receiving base, 10 ... Escalator, 12 ... Truss, 28 ... Support angle, 40 ... Adjustment plate, 42 ... First adjustment plate, 44 ..Second adjustment plate, 46 ... extension plate, 48 ... connecting portion

Claims (5)

An escalator truss installed between a pedestal on the upper floor of the building and the pedestal on the lower floor,
A support angle provided at each of the front end portion and the rear end portion of the truss, and placed on each cradle;
One or more height adjusting plates provided between the support angle and the cradle;
Have
The height adjustment plate is
A first adjustment plate fixed to the support angle;
A second adjustment plate fixed to the cradle and provided closer to the truss than the first adjustment plate;
I have a,
The second adjustment plate is an escalator fixed at a position where the first adjustment plate moves along the front-rear direction toward the truss . An extending plate extending from the second adjusting plate toward the first adjusting plate;
A connecting portion that connects the first adjustment plate and the extension plate at a position where the first adjustment plate and the extension plate are aligned in the left-right direction;
I have a,
The connecting portion is formed thinner than the length of the first adjustment plate in the front-rear direction.
The escalator according to claim 1. An extending plate extending from the first adjusting plate toward the second adjusting plate;
A connecting portion that connects the second adjustment plate and the extension plate at a position where the second adjustment plate and the extension plate are aligned in the left-right direction;
I have a,
The connecting portion is formed thinner than the length of the second adjustment plate in the front-rear direction.
The escalator according to claim 1. The first adjustment plate is fixed to the support angle by welding or bolts.
The escalator as described in any one of Claims 1 thru | or 3. The second adjustment plate is fixed to the cradle by welding or bolts.
The escalator as described in any one of Claims 1 thru | or 4.

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