JP2011225346A - Passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor capable of improving quake resistance without spoiling a design property.SOLUTION: The passenger conveyor includes: a frame body 2 installed via a reception beam 2a with a margin, between an upper floor building 11 and a lower floor building; a boarding floor provided to both ends in the longitudinal direction of the frame body 2; a step chain and a step which are endlessly connected between the boarding floors, and which are turned in a circulation manner; the main sprocket and sub-sprocket around which the step chain is wound near a part under the boarding floor; a driving shaft which is attached to the frame body via the bearing, and to which the main sprocket is fixed; and a drive unit M for driving the driving shaft via a driving sprocket. Projection sections 21 and 45 which are projected in a transverse direction of the frame body 2 are provided to the frame body 2 positioned at the upper floor building, and a stopper 9 to be engaged with the projection sections 21 and 45 with a smaller gap than the margin of the reception beam, are provided at the upper floor building side facing the projection sections.

Description

  The present invention relates to a passenger conveyor erected between an upper-floor building and a lower-floor building, and more particularly to a structure for improving earthquake resistance.

  Conventionally, in passenger conveyors erected between the upper floor building and the lower floor building, the sloping section prevents the passenger conveyor from falling due to the expanded displacement of the distance between floors due to the shaking of the building during an earthquake. A frame having an upper bent portion and a lower bent portion formed between the upper horizontal section and between the inclined section and the lower horizontal section, and the upper end portion of the frame body is connected to a strength member provided in the building Examples of the fixing means include a wire rope (for example, see Patent Document 1).

  Conventionally, in consideration of the workability of bearing replacement, there is also one in which the shaft of the main sprocket is provided so as to protrude outward from the outer surface of the frame (for example, see Patent Document 2).

Japanese Patent Laying-Open No. 2008-195475 (paragraph numbers 0009 to 0015, FIG. 2) Japanese Patent Laid-Open No. 5-78086 (FIG. 1)

  However, depending on the installation conditions of the passenger conveyor, when viewed from the side, the connecting means, that is, the wire rope is visible, and there is a problem that the design is impaired.

  The present invention has been made from the above-described actual state of the prior art, and an object thereof is to provide a passenger conveyor capable of improving the earthquake resistance without impairing the design.

  In order to achieve the above-mentioned object, the present invention is provided between the upper floor building and the lower floor building via a receiving beam having a hanging margin, and provided at both longitudinal ends of the frame body. A landing floor, a step chain and a step that are circulated and rotated endlessly between the landing floors, a main sprocket and a secondary sprocket around which the step chain is wound, and a bearing on the frame body In the passenger conveyor provided with a drive shaft to which the main sprocket is fixed and a drive machine for driving the drive shaft via the drive sprocket, the frame located on the upper floor building side The body is provided with a projecting portion projecting in the short direction of the frame, and the upper floor building side facing the projecting portion has a gap smaller than the hanging allowance of the receiving beam and is engaged with the projecting portion. Prevention It is characterized in that the provided.

  In the present invention configured as described above, by arranging the projecting portion of the frame so as to oppose the blocking body on the upper floor building side, when the distance between the floors is expanded and displaced due to the shaking of the building during an earthquake, The gap between the protrusion and the blocking body becomes zero, and the movement of the protrusion is blocked by the blocking body. As a result, the frame can be prevented from slipping down. Further, the projecting portion and the blocking body are smaller than the conventional connecting means, and can be installed so as to be hidden in the building structure, so that the design is not impaired.

  Further, the present invention is characterized in that the blocking body is a U-shaped groove provided on the upper floor building side.

  In this invention comprised in this way, while making a blocking body into the U-shaped groove provided in the upper-floor building side, while providing the required intensity | strength as a blocking body with a simple structure, a protrusion part and a blocking body can be provided. It can be installed so that it is completely hidden within the building structure.

  Furthermore, the present invention is characterized in that the blocking body is a stopper facing the protruding portion.

  Even if the present invention configured as described above is a building that cannot be provided with a U-shaped groove, or the case where the passenger conveyor of the present invention is installed in an existing building, the blocking member can be provided with a simple structure. Can be provided.

  Furthermore, the present invention is characterized in that the projecting portion is a bearing portion of the main sprocket that projects outward from the outer method of the frame body.

  In the case of the passenger conveyor in which the bearing portion of the main sprocket protrudes outward from the outer method of the frame body, the present invention configured as described above can be used as a protruding portion, so that the trouble of providing a protruding portion separately can be reduced. It can be omitted.

  Further, the present invention is characterized in that the protruding portion is a bracket provided outside the frame body.

  The present invention configured as described above can be provided with a protrusion having a required strength and a simple structure.

  According to the present invention, it is possible to prevent the passenger conveyor from slipping off during an earthquake without impairing the design when the passenger conveyor is viewed from the side, and thereby excellent in both design and safety. Passenger conveyors can be provided.

It is a side view which shows schematic structure of a passenger conveyor. FIG. 2 is a cross-sectional view of a main sprocket portion taken along line AA in FIG. 1, showing the first embodiment of the passenger conveyor of the present invention. It is a plane simplification figure of the frame part in the 1st example which meets the BB line of Drawing 1. It is sectional drawing of the main sprocket part which shows the 2nd Example of the passenger conveyor of this invention, and follows the AA line of FIG. It is a plane simplification figure of the frame part in the 2nd example which meets the BB line of Drawing 1.

  Embodiments of a passenger conveyor according to the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the passenger conveyor of the first embodiment, for example, an escalator, is a building structure 1, that is, receiving beams 2 a and 2 b provided with a hanging allowance between the upper-floor building 11 and the lower-floor building 12. The frame 2 installed through the two, the landing floors 31 and 32 provided at both ends of the frame 2 in the longitudinal direction, and the main sprocket 4 and the secondary sprocket 5 disposed in the vicinity of the landing floors 31 and 32. The step chain 6 and the step 7 connected endlessly between the getting-on / off floors 31, 32, the driving machine M that drives the step chain 6, and the balustrade facing left and right along the turning direction of the step 7 8 and.

  As shown in FIG. 2, the main sprocket 4 includes a drive shaft 41 extending along the short direction of the frame 2, a step chain sprocket 42 around which the step chain 6 is wound, and a handrail drive sprocket 43. The drive sprocket 44 for transmitting the power from the drive machine M and the bearing 45 fixed to the base 21 provided on the frame 2 by bolts B are disposed at the end of the drive shaft 41. .

  As shown in FIG. 2, a part of the bearing 45 protrudes outside the outer method (outer dimensions, width dimensions, outer surface) of the frame body 2, and a part of the base 21 is also outside the frame body 2. It protrudes outward from the method and has a convex shape. 2, for the sake of convenience, only the right side of the escalator is shown, and the left side is basically the same as the right side, but the drive sprocket 44 is omitted.

  And the escalator 1 of 1st Example provides the protrusion part which protrudes in the transversal direction of this frame 2 in the frame 2 located in the upper-floor building 11 side, as shown in FIG.2 and FIG.3. In addition, a blocking body that engages with the projecting portion is provided on the upper-floor building 11 side facing the projecting portion, with a gap H smaller than the hooking margin R of the receiving beam 2a.

  As shown in FIG. 2, the protruding portion described above includes, for example, a bearing portion of the main sprocket 4 protruding outward from the outer method of the frame body 2, that is, a bearing 45 and a base 21.

  As shown in FIG. 3, the blocking body described above includes a U-shaped groove 9 provided on the upper floor building 11 side. Note that the protruding portion, that is, the bearing portion of the main sprocket 4 and the U-shaped groove 9 that is a blocking body are installed so as to be completely hidden in the building structure when the escalator 1 is viewed from the side.

  In the first embodiment, when the distance between the upper-floor building 11 and the lower-floor building 12 is enlarged and displaced due to the shaking of the building at the time of the earthquake, the main sprocket 4 projecting outward from the outer method of the frame body 2. The gap H between the bearing portion and the U-shaped groove 9 becomes zero. That is, the movement of the protruding portion is blocked by the blocking body, and the frame body 2 is prevented from slipping down. In this way, the frame body 2 can be prevented from slipping by setting the hooking allowance R of the receiving beam 2a and the gap H to a relationship of H <R.

  According to the first embodiment, it is possible to prevent the frame body 2 from slipping off during an earthquake without impairing the design when the escalator 1 is viewed from the side, thereby improving the design and safety. An escalator excellent in both sides can be provided. Moreover, by using the U-shaped groove 9 provided on the upper-floor building side as the blocking body, it is possible to provide the necessary strength as the blocking body with a simple structure, and the protruding portion and the blocking body are completely inside the building structure. It can be installed to hide. Further, by using the bearing portion of the main sprocket 4 projecting outward from the outer method of the frame body 2, that is, the bearing 45 and the base 21 as the projecting portion, it is possible to save the trouble of providing the projecting portion separately. it can.

  Next, a second embodiment will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the thing equivalent to the 1st Example mentioned above.

  In 2nd Example, the protrusion part which is provided in the frame 2 located in the upper-floor building 11 side, and protrudes in the transversal direction of this frame 2 is shown in FIG. It consists of a bracket 10 provided outside.

  In addition, as shown in FIG. 5, for example, as shown in FIG. 5, the blocking body that is provided on the upper-floor building 11 side facing the protruding portion and has a gap H that is smaller than the hooking margin R of the receiving beam 2 a is engaged. It consists of a stopper S facing the protrusion. In FIG. 5, one side of the protruding part faces the stopper S, and the other side of the protruding part faces the structure of the upper floor building 11 with a predetermined gap.

  In the second embodiment, when the distance between the upper-floor building 11 and the lower-floor building 12 is enlarged and displaced due to the shaking of the building at the time of the earthquake, the bracket 10 protruding outward from the outer method of the frame body 2 The gap H between the stoppers S becomes zero. That is, the movement of the protruding portion is blocked by the blocking body, and the frame body 2 is prevented from slipping down.

  According to the second embodiment, as in the first embodiment described above, the frame body 2 can be prevented from slipping during an earthquake without damaging the design when the escalator is viewed from the side. As a result, an escalator excellent in both design and safety can be provided. Moreover, even if it is a building which cannot provide the U-shaped groove | channel mentioned above by making the blocking body into the stopper S which opposes a protrusion part, also when installing this invention in the existing building The blocking body can be provided with a simple structure. Furthermore, since the protruding portion is the bracket 10 provided outside the frame body 2, the protruding portion having the required strength can be provided with a simple structure.

  In the first embodiment described above, a combination in which the projecting portion is a bearing portion of the main sprocket 4 projecting outward from the outer method of the frame body 2 and the blocking body is a U-shaped groove 9, In the embodiment, the bracket 10 provided outside the frame 2 is used as the protrusion and the stopper S is used as the blocking body. However, it goes without saying that the combination of the protrusion and blocking body is not limited to this. Further, in each of the above-described embodiments, the escalator in which the steps are stepped on the slope has been described, but the present structure may be applied to a moving sidewalk where no step is generated.

DESCRIPTION OF SYMBOLS 1 Building structure 11, 12 Floor 2 Frame body 21 Base 22 Rail base 23 Horizontal girder 24 Lower surface connection material 25 Oil receiver 26 Upper surface part 27 Rail base 31, 32 Boarding floor 4 Main sprocket 41 Drive shaft 42 Sprocket for step chain 43 Sprocket for handrail drive 44 Drive sprocket 45 Bearing 5 Sub sprocket 6 Step chain 7 Step 8 Railing 9 U-shaped groove 10 Bracket M Drive S Stopper H Clearance R Upper bearing support

Claims (5)

A frame installed between the upper-floor building and the lower-floor building via a receiving beam with a hanging allowance, a boarding / exiting floor provided at both ends in the longitudinal direction of the frame, and an endless space between these boarding / exiting floors A step chain and a step connected and circulated, a main sprocket and a sub sprocket around which the step chain is wound in the vicinity of the landing floor, and a main sprocket attached to the frame body via a bearing portion. In a passenger conveyor provided with a fixed drive shaft and a drive machine that drives the drive shaft via a drive sprocket,
The frame body located on the upper floor side is provided with a protrusion that protrudes in the short direction of the frame body, and the upper floor side facing the protrusion is smaller than the hanging allowance of the receiving beam. A passenger conveyor comprising a blocking body that has a gap and engages with the protruding portion.   The passenger conveyor according to claim 1, wherein the blocking body is a U-shaped groove provided on the upper-floor building side.   The passenger conveyor according to claim 1, wherein the blocking body is a stopper facing the protruding portion.   The passenger conveyor according to claim 1, wherein the protruding portion is a bearing portion of the main sprocket that protrudes outward from an outer method of the frame body.   The passenger conveyor according to claim 1, wherein the protruding portion is a bracket provided outside the frame body.

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