JP2019006591A - Passenger conveyor - Google Patents

Abstract

To prevent a breakage of a passenger conveyor in a state of being held by a building beam, while preventing a fall of the passenger conveyor coming off from a building side support beam.SOLUTION: A passenger conveyor comprises: a non-fixed side coupling part 7 arranged in at least one end part in a longitudinal direction of a frame 4 and coupled to a building side support beam 3 detachably; an additional building beam 5 arranged so as to form a space part g between a horizontal part 4a and itself at a lower part of the horizontal part 4a of the frame 4 on a side where the non-fixed side coupling part 7 is provided; and a support member 10 having a curve part 10a to support the frame 4 falling due to decoupling of the building side support beam 3 in the space part g.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a passenger conveyor including an escalator and a moving sidewalk.

  A conventional passenger conveyor has a frame disposed between two building-side support beams and a plurality of steps that are connected endlessly in the frame and circulate. And the non-fixed side connection part connected with the building side support beam so that contact / separation is possible is provided in the at least one edge part of the longitudinal direction of this flame | frame.

  In such a passenger conveyor, for example, in the event of an earthquake or a strong wind, if the building where the passenger conveyor is installed shakes, the distance between the building-side support beams increases, and the connection of the non-fixed-side connecting portion is connected to the building side. There is a possibility of coming off the support beam. In order to cope with this, a building beam is added below the passenger conveyor, and the passenger conveyor removed from the building side support beam is temporarily held by the building beam to prevent it from falling, and after the earthquake has subsided, the passenger conveyor Is known to be connected back to the building-side support beam (Patent Document 1).

JP, 2006-79955, A

  However, in the structure shown in Patent Document 1, when there is a deviation in parallelism between the passenger conveyor and the building beam due to a building error, it is added to the passenger conveyor held on the building beam by shaking such as an earthquake. There was a risk that the load would be irregular and the passenger conveyor would buckle and break.

  An object of the present invention is to prevent the passenger conveyor falling off the building-side support beam from falling and to prevent the passenger conveyor held in the building beam from being damaged.

  In order to solve the above problems, for example, the configuration described in the claims is adopted. The present application includes a plurality of means for solving the above-described problems. To give an example, the present invention provides a frame having a horizontal portion at least partially disposed between two building-side support beams. And a plurality of steps that are connected endlessly in the frame and circulate and move to and from the building-side support beam provided at at least one end in the longitudinal direction of the frame Additional construction provided so as to form a space between the non-fixed side connecting portion and the horizontal portion of the frame on the side where the non-fixed side connecting portion is provided. And a support member having a curved portion for supporting the frame that has fallen out of connection with the building-side support beam.

  According to the passenger conveyor of the present invention, when the passenger conveyor is detached from the building-side support beam, the passenger conveyor is prevented from falling by the building beam and the passenger conveyor held in the building beam is prevented from being damaged. Can do.

It is a side view explaining the whole passenger conveyor composition by one embodiment of the present invention. It is a principal part enlarged view of the passenger conveyor by one Embodiment of this invention. It is a schematic diagram for demonstrating the effect | action of the support member by one Embodiment of this invention. It is a principal part enlarged view of the passenger conveyor by other embodiment of this invention. It is a schematic diagram for demonstrating the effect | action of the support member by other embodiment of this invention.

  Hereinafter, an embodiment of a passenger conveyor of the present invention (hereinafter referred to as “this example”) will be described with reference to the drawings. In the present specification and drawings, the same reference numerals are used for members having substantially the same elements or functions, and redundant inventions are omitted.

FIG. 1 is a side view illustrating the overall configuration of the passenger conveyor of this example.
As shown in FIG. 1, the passenger conveyor 1 is installed straddling between the lower-floor building beam 2 and the upper-floor building beam 3 which are two building side support beams. The passenger conveyor 1 is connected in an endless manner within the frame 4, a frame 4 disposed between the lower-floor building beam 2 and the upper-floor building beam 3, a handrail 8 attached to the upper portion of the frame 4, and the frame 4. And a plurality of steps (not shown) that circulate and move.

  The frame 4 is disposed between the upper horizontal portion 4a disposed on the upper floor building beam 3 side, the lower horizontal portion 4c disposed on the lower floor building beam 2 side, and the upper horizontal portion 4a and the lower horizontal portion 4c. And an inclined portion 4b.

  In addition, the frame 4 should just have a horizontal part in at least one part. For example, when the passenger conveyor 1 is used for an escalator or an inclined moving sidewalk, there are two horizontal portions (an upper horizontal portion and a lower horizontal portion). Moreover, when the passenger conveyor 1 is used for a horizontal moving sidewalk, the whole frame 4 becomes one horizontal part.

  One end of the frame 4 in the longitudinal direction (the end of the upper horizontal portion 4 a) is provided with a non-fixed side connecting portion, and the non-fixed side connecting portion is provided on the upper floor support provided on the upper floor building beam 3. There is provided a non-fixed side flange 7 that is placed on the portion 3a and connects the upper-level building beam 3 and the frame 4 so as to be able to contact and separate. Further, the other end in the longitudinal direction of the frame 4 (the end of the lower horizontal portion 4c) is provided with a fixed side connecting portion, and the fixed side connecting portion is a lower floor support provided on the lower floor building beam 2. The fixed side collar part 9 which is mounted in the part 2a and which connects and fixes the lower floor building beam 2 and the frame 4 is provided.

  Under the upper horizontal portion 4a of the frame 4, an auxiliary beam 5 as an additional building beam configured to extend along the upper horizontal portion 4a is provided.

FIG. 2 is an enlarged view of the vicinity of the upper floor beam 3 side of the passenger conveyor 1 shown in FIG.
As shown in FIG. 2, the auxiliary beam 5 is attached to the upper building beam 3 below the upper horizontal portion 4a of the frame 4 so that the upper surface of the auxiliary beam 5 faces the bottom surface of the upper horizontal portion 4a. It has been. One end of the auxiliary beam 5 is fixed to the side surface of the upper building beam 3 by a bolt. In addition, the auxiliary beam 5 is comprised with steel materials, such as iron provided with the intensity | strength of the grade which can hold | maintain the passenger conveyor 1 which falls.

  The auxiliary beam 5 is attached so as to be separated from the bottom surface of the upper horizontal part 4 a of the frame 4 by a predetermined distance, and a space part g is formed between the upper horizontal part 4 a and the auxiliary beam 5. . The separation distance is determined in consideration of the size of the support member 10 to be described later, the size of the passenger conveyor 1, and the like. A plurality of auxiliary beams 5 are desirably provided along the left and right ends of the frame 4, but one auxiliary beam 5 may be provided along the center of the frame 4.

  A support member 10 is provided in a space g between the upper horizontal portion 4 a of the frame 4 and the auxiliary beam 5. The support member 10 is made of a high-strength, low-friction material. The support member 10 is fixed to the auxiliary beam 5 by a bolt 11.

  The support member 10 is fixed at a position away from the side surface of the upper story building beam 3 by a predetermined distance. This distance is determined in consideration of the interlayer deformation angle of the passenger conveyor 1. For example, when the passenger conveyor 1 moves by 300 mm due to an earthquake or the like, the support member 10 needs to be provided at a position at least 300 mm away from the side surface of the upper story building beam 3.

  In this example, the auxiliary beam 5 is fixed to the upper-floor building beam 3 in a state where the auxiliary beam 5 is inclined downward due to a construction error caused when the auxiliary beam 5 is attached to the upper-floor building beam 3. Here, the inclination with respect to the upper horizontal part 4a of the auxiliary beam 5 caused by the construction error is expressed as an inclination angle θ.

  Further, in this example, the support member 10 is fixed so as to be in contact with the lower surface of the upper horizontal portion 4a, and a space portion g is secured between the auxiliary beam 5 and the upper horizontal portion 4a. The support member 10 may be fixed in a state slightly separated from the lower surface of the upper horizontal portion 4a.

  The non-fixing collar portion 7 is formed of a member having an L-shaped cross section that extends in the short direction of the frame 4. The non-fixing collar portion 7 has the other end surface 7b fixed to the frame 4 with a bolt or the like in a state where the one end surface 7a is located on the same plane as the upper surface of the frame 4. By placing the end surface 7a of the non-fixing saddle member 7 on a plane formed on the upper floor receiving portion 3a, the passenger conveyor 1 is connected to the upper floor building beam 3 in a state where the passenger conveyor 1 can contact and separate. A spacer member (not shown) is provided below the end surface 7a.

  FIG. 3A is a cross-sectional view of the vicinity of the frame 4 where the support member 10 is provided as viewed from the short side direction, and FIG. 3B is a diagram illustrating a state in which the auxiliary beam 5 is inclined at an inclination angle θ due to a construction error. is there.

  As shown in FIG. 3A, a main frame member 6 having an L-shaped cross section is provided at the lower end portion of the frame 4. The main frame member 6 includes an upper surface portion 6 a that extends upward, and a lower surface portion 6 b that extends in a direction perpendicular to the upper surface portion 6 a, and is attached to the frame 4 with the lower surface portion 6 b facing the inside of the frame 4. Yes.

  The auxiliary beam 5 is composed of a reinforcing bar member having an upper surface 5a and a lower surface 5b and having an H-shaped cross section. The width in the short direction of the upper surface 5 a of the auxiliary beam 5 is formed to be substantially the same as the diameter of the support member 10. When two passenger conveyors are installed adjacent to each other, the width of the upper surface 5a of the auxiliary beam 5 may be increased and one auxiliary beam 5 may be used by two passenger conveyors.

  In the case of FIG. 3A, no construction error has occurred, and the auxiliary beam 5 is attached to the upper building beam 3 as designed. At this time, the inclination angle θ of the auxiliary beam 5 is 0 degree, and the lower surface 6b (upper horizontal portion 4a) of the main frame member 6 and the upper surface 5a of the auxiliary beam 5 are in a parallel state.

  The support member 10 includes a hemispherical zenith portion 10a obtained by cutting a sphere, and a skirt portion 10b formed around the zenith portion 10a. The support member 10 is formed by, for example, processing and molding a single steel plate. A through hole through which the bolt passes is formed in the skirt portion 10 b of the support member 10. By tightening the bolt 11 inserted through the through hole, the support member 10 is fixed to the auxiliary beam 5 with the zenith portion 10a facing the upper horizontal portion 4a of the frame 4. In the present example, the center of the curved portion of the zenith portion 10 a of the support member 10 is fixed in a state of being in contact with the lower surface portion 6 b of the main frame member 6.

  FIG. 3B shows a state where the auxiliary beam 5 is attached at an inclination angle θ due to a construction error. Therefore, the lower surface portion 6b (upper horizontal portion 4a) of the main frame member 6 and the upper surface 5a of the auxiliary beam 5 are not parallel to each other, and the upper surface 5a of the auxiliary beam 5 is inclined outward. As a result, in this example, the curved portion slightly separated from the center of the zenith portion 10 a of the support member 10 is in contact with the lower surface portion 6 b of the main frame member 6.

  Thus, according to the present example, the curved portion of the zenith portion 10a of the support member 10 can always be brought into contact with the lower surface portion 6b of the main frame body member 6 regardless of whether there is a construction error. That is, since the curved portion of the zenith portion 10a is always in contact with the lower surface portion 6b, the support member 10 and the main frame member 6 can be brought into point contact to maintain the same contact area.

FIG. 4 is an enlarged view of the vicinity of the upper floor building beam 3 side of the passenger conveyor 1 according to another embodiment.
As shown in FIG. 4, the auxiliary beam 5 is attached to the upper building beam 3 below the upper horizontal portion 4a of the frame 4 so as to be parallel to the upper horizontal portion 4a.

  A support member 20 is provided between the upper horizontal portion 4 a of the frame 4 and the auxiliary beam 5. The support member 20 is fixed to the bottom surface of the upper horizontal portion 4 a of the frame 4 with bolts 11.

  FIG. 5A is a cross-sectional view of the vicinity of the frame 4 where the support member 20 is provided as viewed from the short direction, and FIG. 5B is a schematic diagram showing a state where the auxiliary beam 5 is inclined due to a construction error.

  In the case of FIG. 5A, no construction error has occurred, and the auxiliary beam 5 is attached to the upper floor building beam 3 as designed. At this time, the inclination angle θ of the auxiliary beam 5 is 0 degree, and the lower surface 6b (upper horizontal portion 4a) of the main frame member 6 and the upper surface 5a of the auxiliary beam 5 are in a parallel state.

  The support member 20 includes a hemispherical zenith portion 20a obtained by cutting a sphere, and a skirt portion 20b formed around the zenith portion 20a. The support member 20 is formed by molding a high-strength, low-friction steel plate. A through-hole through which the bolt passes is formed in the skirt portion 20b of the support member 20. By tightening the bolt 11 inserted through the through hole, the support member 10 is fixed to the lower surface portion 6b of the main frame member 6 with the zenith portion 10a facing the upper surface portion 5a of the auxiliary beam 5. In this example, the center of the curved portion of the zenith portion 20 a of the support member 20 is in contact with the upper surface portion 5 a of the auxiliary beam 5.

  FIG. 5B shows a state in which the auxiliary beam 5 is attached to the upper floor building beam 3 at an inclination angle θ due to a construction error. Therefore, the lower surface portion 6b (upper horizontal portion 4a) of the main frame member 6 and the upper surface 5a of the auxiliary beam 5 are not in a parallel state, but the auxiliary beam 5 is inclined inward. For this reason, the curved portion slightly separated from the center of the zenith portion 20 a of the support member 20 is in contact with the upper surface portion 5 a of the auxiliary beam 5.

  Thus, according to this example, it is possible to always keep the curved portion of the zenith portion 20a of the support member 20 in contact with the upper surface portion 5a of the auxiliary beam 5 regardless of whether there is a construction error. That is, since the curved portion of the zenith portion 20a is always in contact with the upper surface portion 5a, the support member 20 and the auxiliary beam 5 can be brought into point contact to maintain the same contact area.

  In the conventional passenger conveyor, when the auxiliary beam 5 is inclined due to a construction error, an inclination angle is generated between the upper surface 5 a of the auxiliary beam 5 and the lower surface 6 b of the main frame member 6. In this state, when the passenger conveyor 1 dropped from the upper floor building beam 3 is held by the auxiliary beam 5, the main frame member is not the surface contact between the upper surface 5 a of the auxiliary beam 5 and the lower surface 6 b of the main frame member 6. The tip corners of the lower surface 6b of 6 and the upper surface 5a of the auxiliary beam 5 are in line contact. In this state, when an earthquake shake is applied, the main frame member 6 and the auxiliary beam 5 are brought into line contact or surface contact, so that the main frame member 6 (upper horizontal portion 4a) and the auxiliary beam 5 The contact area is not constant, and the sliding resistance generated between the two changes. Thereby, the magnitude | size of the load added to the main frame member 6 by the side of the passenger conveyor 1 became irregular, and there was a possibility that the passenger conveyor 1 might buckle and eventually be damaged.

  On the other hand, according to the passenger conveyor 1 of this example, by interposing the support member 10, the main frame member 6 and the auxiliary beam 5 are kept in a point contact state, and the main frame member 6 and the auxiliary beam 5 are maintained. The sliding area generated between the two can be stabilized by keeping the contact area with the constant. That is, the support member 10 can absorb the variation in the inclination angle θ generated between the auxiliary beam 5 and the main frame member 6. Therefore, even if the auxiliary beam 5 is inclined due to a construction error, it is possible to keep the load applied to the passenger conveyor 1 constant and prevent the passenger conveyor from being damaged by buckling.

  Although the shape of the support member 10 in this example is a hemispherical body, a point contact state can be achieved as long as the support member 10 has a curved portion at a portion in contact with the main frame member 6 or the auxiliary beam 5. Note that, by forming the support member 10 in a hemispherical shape as in this example, it is possible to absorb variations in the inclination angle θ in all directions (360 degrees) caused by construction errors.

  Moreover, according to the passenger conveyor 1 of this example, when the distance between two building side receiving parts 2a and 3a becomes large, for example by an earthquake etc., and the non-fixed side collar part 7 remove | deviates from the upper floor receiving part 3a. Even so, since the lower side of the upper horizontal portion 4a is held by the support member 10 provided on the auxiliary beam 5, the passenger conveyor 1 can be prevented from falling. The same effect can be obtained even when the support member 10 is provided in a state where it does not contact the upper horizontal portion 4a.

  Further, the presence of the support member 10 makes it possible to maintain the space g formed between the bottom surface of the upper horizontal surface 4 a and the upper surface 5 a of the auxiliary beam 5 by providing the auxiliary beam 5. Thereby, it is possible to prevent parts such as the oil receiver and the reinforcing material provided at the bottom of the frame 4 from coming into contact with the auxiliary beam 5 and being damaged.

  Further, the support member 10 holds the non-fixed side flange portion 7 of the frame 4 detached from the upper floor receiving portion 3a near the upper floor receiving portion 3a. Thereby, after an earthquake etc. settles, the operation | work which returns the non-fixed side collar part 7 to the building side receiving part 3a can be performed easily.

  It should be noted that the passenger conveyor of the present invention is not limited to the above-described embodiments, and various modifications and changes can be made without departing from the configuration of the present invention in terms of other materials and configurations. Absent. For example, the present invention is not limited to an escalator that is an example of a passenger conveyor, and may be applied to a moving sidewalk that is another example of a passenger conveyor.

  Moreover, a passenger conveyor is good also as non-fixing both ends other than unfixing one end part to a building side support beam. In this case, auxiliary beams may be installed at both ends of the passenger conveyor.

DESCRIPTION OF SYMBOLS 1 ... Passenger conveyor, 2 ... Lower floor building, 2a ... Lower floor receiving part, 3 ... Upper floor building, 3a ... Upper floor receiving part, 4 ... Frame, 4a ... Upper horizontal portion, 4b ... inclined portion, 4c ... lower horizontal portion, 5 ... auxiliary beam, 6 ... main frame member, 7 ... non-fixed side collar, 8 ... Handrail, 9 ... Fixed side collar, 10, 20 ... Support member, 11 ... Bolt

Claims (4)

In a passenger conveyor having a frame having a horizontal portion at least partially disposed between two building-side support beams, and a plurality of steps connected in an endless manner and circulatingly moved in the frame,
A non-fixed side connecting portion that is provided at at least one end in the longitudinal direction of the frame and is connected to the building-side support beam so as to be able to contact and separate;
An additional building beam provided below the horizontal portion of the frame on the side where the non-fixed side connecting portion is provided, so as to form a space between the horizontal portion, and
A passenger conveyor provided with a support member having a curved portion for supporting the frame that has fallen out of connection with the building-side support beam in the space portion. The passenger conveyor according to claim 1, wherein the support member is fixed to the additional building beam in a state where the curved portion is opposed to the horizontal portion. The passenger conveyor according to claim 1, wherein the support member is fixed to the horizontal portion in a state where the curved portion faces the additional building beam. The passenger conveyor according to claim 2 or 3, wherein the support member is configured in a hemispherical shape, and the curved portion is a part of the hemispherical shape.

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