JP6568031B2 - Passenger conveyor - Google Patents

Description

  The present invention relates to a passenger conveyor.

  The passenger conveyor may be renewed by removing the existing passenger conveyor and installing a new passenger conveyor at the same location. As a renewal method in this case, as described in JP 2013-67461 A (Patent Document 1), when the existing passenger conveyor is removed, the existing truss frame is left without being removed, and the existing truss frame is left in the existing truss frame. There is a method of installing a new truss frame for a new passenger conveyor.

JP 2013-67461 A JP 2014-136609 A

  However, what is described in Patent Document 1 described above is that, in the case of renewal, the truss frame of the new passenger conveyor is installed in the storage space of the existing truss frame of the existing passenger conveyor, and the existing truss frame is placed on the building cradle. The existing support angle is mounted, and the new support angle of the new truss frame is mounted on the existing support angle. Therefore, it basically follows the seismic standards of existing passenger conveyors after renewal, but the earthquake resistance of passenger conveyors was enhanced by the recent large earthquake, and at the time of passenger conveyor renewal, at least the support angle and Seismic resistance that makes the hanging space with the building cradle larger than that of the existing passenger conveyor and prevents the truss frame from dropping even when the inter-building beam dimension is relatively large and extended due to large inter-layer displacement due to seismic motion. It is desired to provide a passenger conveyor with improved performance.

  On the other hand, at the time of renewal, it may be possible to remove the existing support angle from the end portion of the existing truss frame and to provide a new support angle having a larger allowance than the allowance between the existing support angle and the building support. Such a construction cradle is sized to fit the existing support angle, and in order to install a new support angle having a large allowance, it is necessary to remove a part of the building structure side.

  An object of the present invention is to provide a passenger conveyor having a simple structure and excellent earthquake resistance.

  In order to solve at least one of the above-described problems, a passenger conveyor according to an aspect of the present invention includes a truss frame constructed between a building cradle on a lower floor and an upper floor, and is fixed to a terminal portion of the truss frame. And an architectural support that can be mounted in the vicinity of the lower floor and the upper floor and can be mounted on the truss frame, and the tip portion of the lower floor and the upper floor An extension structure mounted on each floor surface is provided, an inclined part is formed at the tip of the extension structure, and exists between the building cradle and the floor surface between the building cradle and the floor surface. The tilt table that gradually changes the step is fixed.

  Further, the tilt table may have an inclination angle substantially equal to the inclination angle at the inclined portion at the tip of the extension structure. The inclined base may be smooth on the sliding surface with the inclined portion.

  Furthermore, in the passenger conveyor provided with support angles at both end portions of the truss frame erected in the building structure, which is an aspect of the present invention, one is attached to the main chord member of the truss frame and the other Is placed on the finished floor of the building structure, and an additional frame is provided to secure a larger allowance than the allowance between the support angle and the building structure.

  ADVANTAGE OF THE INVENTION According to this invention, the passenger conveyor excellent in earthquake resistance with a simple structure can be provided. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a side view which shows schematic structure of the passenger conveyor by one Example of this invention. It is a side view which expands and shows the passenger conveyor shown in FIG. It is a side view which shows the case where a large-scale interlayer displacement generate | occur | produced in the passenger conveyor shown in FIG. The example which attached the cover to the extension structure is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing a schematic configuration of a passenger conveyor according to an embodiment of the present invention.

  The passenger conveyor of a present Example illustrates the case where the existing truss frame of an existing escalator is left and other parts are removed, and a new escalator is installed using the remaining existing truss frame.

  The existing escalator 1 is installed between the lower floor 2 and the upper floor 3 of the building structure. The existing escalator 1 includes a lower horizontal portion 4a extending to the lower floor 2, an upper horizontal portion 4b extending to the upper floor 3, and an inclination formed between the lower horizontal portion 4a and the upper horizontal portion 4b. An existing truss frame 4 having a portion 4c is provided. An existing lower support angle 6 placed on the building cradle 5 on the lower floor 2 is provided at the terminal end of the lower horizontal portion 4a. Similarly, an existing upper support angle 8 placed on the building cradle 7 of the upper floor 3 is provided at the end of the upper horizontal portion 4b.

  The existing truss frame 4 is connected to components such as a plurality of steps 9 connected endlessly and moving between entrances, a step driver 11 installed in the upper machine room 10, and driven by the step driver 11. The upper sprocket 12 to be installed, the lower sprocket 13 installed in the lower machine room 17, the step chain 14 wound around the upper sprocket 12 and the lower sprocket 13, and the balustrade erected on the side of the step 9 in the traveling direction. 15 and a moving handrail 16 supported by the balustrade 15 are provided.

  In the present embodiment, at the time of renewal, first, the above-described components are removed from the existing truss frame 4 and only the existing truss frame 4 is left. In this state, a new truss frame (not shown) of the new escalator is installed. Since this new truss frame is stored in a storage space formed inside the existing truss frame 4, it is smaller than the existing truss frame 4 in the longitudinal direction and the short side direction (the lateral width direction of the storage space). When the existing escalator 1 is removed and a new escalator is installed, the extension structure 18 is fixed to the end portion of the truss frame in order to extend the hanging allowance for the building structure with a simple structure. Specifically, one end of the extension structure 18 is fixed to the main string material of the existing truss frame 4, and the other end of the step 9 in the traveling direction side is a building beam that is the building cradle 5 on the building side. Is placed on the finished floor surface 22 of the lower floor 2, and a smooth inclined portion 23 that is gradually separated from the finished floor surface 22 is formed on the tip side of the placement portion. . An inclined base 24 having a smooth inclination angle substantially equal to the inclination angle α in the inclined portion 23 is fixed to the building receiving base 5 while gradually changing the step existing between the finished floor 22 and the building receiving base 5. Has been. An inclined surface 25 having an inclination angle similar to that of the inclined base 24 is formed at a portion facing the inclined base 24 on the lower side of the extension structure 18 described above. According to these structures, according to the movement of the truss frame due to the earthquake motion, the inclined portion of the distal end portion of the extension structure attached to the truss frame moves between the building cradle and the floor surface. Note that the inclination angle α may be an inclination in the range of about 30 to 70 degrees that gradually separates from the floor surface toward the tip.

  Because, when the angle α is close to zero, the extended structure becomes a long structure, and the influence on the building side is increased. On the other hand, when the angle α is close to 90 degrees, the longitudinal movement force of the passenger conveyor due to the earthquake motion is not distributed, but is transmitted to the building as it is, and the influence on the building becomes large, such as damage to the building. . Therefore, by providing a gentle inclination in the range of about 30 to 70 degrees with respect to the inclination angle α, it is possible to make the extension structure have an appropriate length and to disperse the moving force in the longitudinal direction. In addition, the extension structure 18 has an allowance for the finished floor surface of the lower floor 2 that is larger than the allowance for the building support 5 in the existing lower support angle 6 in the existing configuration.

  FIG. 2 is an enlarged side view showing the lower floor 2 side of the existing truss frame 4 at this time.

  At the initial stage of the renewal, a new extension structure 18 is added to the lower floor 2 side of the existing truss frame 4. One end of the extension structure 18 is fixed to the main chord member 19 of the remaining existing truss frame 4 with bolts 20 or the like. Further, the other end portion of the extension structure 18 is placed on the finished floor surface 22 of the lower floor 2 beyond the building beam that is the building cradle 5 on the building side. A smooth inclined portion 23 is formed so as to gradually move away from the finished floor surface 22. Further, it is desirable that the finished floor surface 22 on which the distal end portion side of the extension structure 18 is mounted is made of a low friction material excellent in slidability or coated with the same material.

  On the other hand, the building pedestal 5 has an inclined table 24 that gradually changes the step existing between the finished floor and the building pedestal 5 and has a smooth inclination angle α substantially equal to the inclination angle in the inclined portion 23. It is fixed.

  An inclined surface 25 having an inclination angle similar to that of the inclined base 24 is formed at a portion facing the inclined base 24 on the lower side of the extension structure 18 described above. The inclined surface 25 is a lower floor inclined surface formed in a lower part than the floor.

  Therefore, even if the existing truss frame 4 is diverted, the extension structure 18 connected to the existing truss frame 4 is placed on the finished floor surface 22 of the lower floor 2, so that the existing lower support angle 6 in the existing configuration is provided. A larger allowance W2 than the allowance W1 for the building cradle 5 can be easily secured with a simple configuration. In addition, at this time, the existing truss frame 4 and the lower floor 2 are not specially processed.

In the steady state, the inclined base 24 and the inclined surface 25 are not in contact with each other, and a horizontal gap b is formed between the existing lower support angle 6 and the building support 5. The gap b is designed to absorb the shaking when the existing lower support angle 6 moves relatively to the left side of the building cradle 5 when a horizontal earthquake motion occurs.
For example, if there is no gap b and the building is shaken due to earthquake motion, a compressive force acts on the passenger conveyor truss frame. Since the compression force increases as the vibration increases, the compression force is not applied to the frame due to the gap b in advance. An area is provided. The horizontal gap a formed between the inclined base 24 and the inclined surface 25 described above satisfies a ≧ b. Therefore, the newly added inclined base 24 does not restrict the horizontal movement of the existing lower support angle 6.

  That is, since the inclined surface 25 similar to the inclination angle of the inclined base 24 is formed in the portion of the extended structure 18 facing the inclined base 24, the absorption of shaking is limited by the newly provided extended structure 18. And the above-described sliding movement can be effectively utilized.

  On the other hand, when the existing lower support angle 6 moves relatively to the side away from the right building cradle 5 when a horizontal earthquake motion occurs, the extension structure 18 moves to the finished floor surface 22 of the lower floor 2. Since it is placed and has a sufficiently large moving distance as compared with the existing configuration, it is possible to absorb shaking while sliding without detaching.

  Thus, the extension structure 18 attached to the existing truss frame 4 can improve the earthquake resistance of the existing truss frame 4, and the new truss frame and the new escalator stored in the storage space of the existing truss frame 4 can be improved. Seismic resistance can be improved. FIG. 2 shows the structure on the lower floor 2 side, but the structure on the upper floor 3 side is the same.

  FIG. 3 is a side view showing the extension structure 18 when a large-scale interlayer displacement occurs. When a large-scale interlayer displacement occurs and the lower end of the extension structure 18 moves while sliding greatly in a direction away from the finished floor surface 22 of the lower floor 2, as shown in FIG. The inclined surface 23 formed at the tip moves on the inclined table 24. At this time, when an interlayer displacement occurs in the opposite direction, the inclined surface 23 of the extension structure 18 easily moves upward by sliding on the tilt table 24, and the distal end side of the extension structure 18 is again on the lower floor 2. It is placed on the finished floor surface 22.

  In addition, it is assumed that the inclined surface 25 of the extension structure 18 moves off the inclined table 24 and moves onto the building cradle 5. At this time, when vibration occurs in the opposite direction, the inclined surface 25 of the extension structure 18 slides and moves upward using the inclined surface of the inclination table 24, and the distal end side of the extension structure 18 is again on the lower floor. It is placed on the finished floor surface 22 of the floor 2 and restored.

  The movement at the time of restoration is performed by setting the inclined portion 23 formed at the distal end portion of the extension structure 18 to a predetermined inclination that gradually separates from the floor surface 2 toward the distal end portion. When the inclined surface 23 formed in the part moves on the inclined table 24, or when moving from the inclined table 24 side to the lower floor 2 or the upper floor 3, the tip of the extension structure 18 is easily It can be moved and restored.

  On the other hand, if the inclined base 24 is not arranged, when the inclined surface 23 of the extension structure 18 falls on the building cradle 5, the extension structure 18 is caused by the step between the lower floor 2 and the building cradle 5. It does not move upward from the building cradle 5 to the lower floor 2 and restore.

  FIG. 4 shows an example in which a cover is attached to the extension structure 18. A width direction fastener cover 150 that is installed on the finished floor surface 22 and covers the outer surface and the upper surface of the extension structure 18 and restricts the movement of the truss frame 4 in the width direction is provided. The width direction fastener cover 150 is formed of, for example, L steel having an L-shaped cross section, and is disposed in pairs so as to face each other, and covers the outer surface and the upper surface of one extension structure 18, The outer surface and the upper surface of the other extension structure 18 are covered. Further, the width direction fastener cover 150 is not fixed to the extension structure 18, and normally covers a part of the outer surface and the upper surface of the extension structure 18, and a part thereof is an extension structure. It extends in the direction opposite to the truss frame from the end of the body 18. Note that the end portion of the truss frame 4 shown in FIG. As a result, the truss frame 4 can move in the longitudinal direction due to seismic motion or the like, but the truss frame 4 is restricted from moving in the width direction by the width direction fastener cover 150.

  According to FIG. 4, in the passenger conveyor that has improved the earthquake resistance by the extension structure 18, the design can be maintained by covering the extension structure 18 with the width direction fastener cover 150, and this width A fastener that restricts the movement of the truss frame 4 in the width direction separately by restricting the movement of the truss frame 4 joined to the other end of the extension structure by the direction stopper cover 150 in the width direction. Therefore, the cost can be reduced. Further, since the inclined portion of the extension structure 18 is covered, it is possible to prevent the passenger's feet and objects from being caught or caught between the inclined portion 23 and the finished floor surface 22.

  In the above-described embodiment, the case where the existing truss frame 4 of the existing escalator is left and other parts are removed and a new escalator is installed using the remaining existing truss frame 4 is illustrated, but the present invention is not limited thereto. It is not a thing. The existing escalator has already been renewed and has a structure similar to the extension structure 18 attached to the existing truss frame 4, but the inclined surface 23 and the inclined base 24 are arranged at the tip thereof. In the case where the structure is not provided, the present invention can be applied when the structure described above is changed to the extended structure 18. In addition, when a seismic escalator is newly installed, the present invention in which the extension structure 18 and the tilt base 24 are installed can be applied.

  As described above, the present invention is provided with the extension structure 18 that is attached to the truss frame 4 and whose front ends are respectively placed on the floor surfaces of the lower floor 2 and the upper floor 3. An inclined portion 23 is formed at the front end portion of the floor, and a step existing between the building cradle 5 and the floor 2 is gradually changed between the building cradle 5 and the floor 2, and the slope at the inclined portion 23 is changed. A tilt table 24 having a smooth tilt angle substantially equal to the angle was fixed.

  According to such a configuration, when a large-scale interlayer displacement occurs and the lower end portion of the extension structure 18 moves while sliding greatly in a direction away from the floor 2 or the floor 3, the extension structure 18 The inclined surface 23 formed at the tip portion moves on the inclined table 24. At this time, when vibration occurs in the opposite direction, the inclined surface 23 of the extension structure 18 easily moves upward by sliding on the inclination table 24, and the extension structure 18 has its tip side again at the lower floor 2 or above. It can be restored and placed on the floor 3.

  In the present invention, in addition to the above-described configuration, the inclined portion 23 formed at the distal end portion of the extension structure 18 has an inclination α that gradually separates from the floor surface 2 toward the distal end portion.

  According to such a configuration, when the inclined surface 23 formed at the distal end portion of the extension structure 18 moves on the inclined table 24, the inclined surface 24 side also moves to the lower floor 2 or the upper floor 3. When moving, the tip of the extension structure 18 can be easily moved and restored.

  Further, in the present invention, in addition to the above-described configuration, an inclined surface 25 similar to the inclination angle of the inclined base 24 is formed in a portion facing the inclined base 24 in the extension structure 18. According to such a configuration, the absorption of shaking is not limited by the newly provided extension structure 18, and the above-described sliding movement can be effectively utilized.

  The sliding surface of the tilt table 24 may be made of a material having a good sliding property and a small coefficient of friction, or a coating. Further, instead of coating with a material having good slidability, a rotating body such as a roller may be attached to the tip on the sliding surface of the inclined table 24.

  In addition, this invention is not limited to the Example mentioned above, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.

2 Existing truss frame 5 Building cradle 6 Existing lower support angle 18 Extension structure 22 Finished floor 23 Slope 24 Slope 25 Slope

Claims (6)

A truss frame erected between the lower floor and the upper floor building cradle, a support angle fixed to the end of the truss frame, and disposed in the vicinity of the lower floor and the upper floor In a passenger conveyor provided with a building cradle capable of mounting the support angle,
An extension structure that is attached to the truss frame and whose tip is placed on each floor of the lower floor and the upper floor is provided, and the tip of the extension structure is provided at the tip. An inclined base that forms an inclined portion having an inclination away from the floor toward the floor and gradually changes a step existing between the architectural receiver and the floor between the architectural receiver and the floor. Passenger conveyor characterized by fixing.   The passenger conveyor according to claim 1, wherein the inclined base has an inclination angle substantially equal to an inclination angle in the inclined portion.   2. The passenger according to claim 1, wherein the inclined portion formed at the distal end portion of the extension structure has an inclination of about 30 to 70 degrees that gradually separates from the floor surface toward the distal end portion. Conveyor.   2. The passenger conveyor according to claim 1, wherein an inclined surface similar to an inclination angle of the inclined base is formed on a portion of the extended structure facing the inclined base.   2. The passenger according to claim 1, wherein the inclined portion of the distal end portion of the extension structure moves between the building cradle and the floor surface in accordance with the movement of the truss frame due to seismic motion. Conveyor.   In the extension structure, a lower floor inclined surface that is opposed to the ramp and in a non-contact state in a steady state is formed in the extension structure at a portion facing the ramp and lower than the floor. More than the space in which the extension structure can be moved relatively to the support angle building cradle when horizontal earthquake motion occurs between the cradle, the underfloor inclined surface and the tilt pedestal in a steady state The passenger conveyor according to claim 1, wherein the space is large.

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