JP2019089621A - Passenger conveyor footstep - Google Patents

Abstract

To provide a passenger conveyor footstep that enables replacement of a rear wheel without removing the footstep.SOLUTION: A passenger conveyor footstep 50 comprises: a cleat body 52 on which a passenger steps; a riser body 54 that extends downward from an end of one side of the cleat body 52 in an advancing direction; a footstep frame 56 that supports the cleat body 52 and the riser body 54; and a rear wheel 60 that is provided to an end of one side of the footstep frame 56 in the advancing direction. The passenger conveyor footstep is attached to an endless footstep chain 30 to circulate. The footstep frame 56 has a holding hole 78 for holding a rear wheel shaft 62 of the rear wheel 60, and the holding hole 78 is formed by a plurality of members 72, 74 divided about the axis of the rear wheel shaft 62.SELECTED DRAWING: Figure 4

Description

  Embodiments of the present invention relate to the steps of a passenger conveyor.

  Passenger conveyors, such as moving walkways and escalators, comprise a plurality of steps on which passengers ride, and an endless step chain to which the steps are connected. The step chain is stretched between a drive sprocket and a driven sprocket provided at the turnback portion, and the driving force is transmitted from the drive device to the drive sprocket, so that the step chain and the steps have one entrance and exit. Circularly move between the other entrance and exit. A guide rail is provided between the pair of landings along the path of movement of the step, and the roller provided on the step engages with the guide rail and rolls, whereby the step is a guide rail. And travel between the one entrance and the other entrance.

  In the steps of such a passenger conveyor, when used for a long time, the front wheels and the rear wheels may be exfoliated or worn away and deteriorated over time, so they need to be replaced as appropriate.

  However, when replacing the rear wheel, in order to move the rear wheel in the axial direction (width direction) and remove it, the step to be replaced is lifted to a position not interfering with the structure in the truss and then the rear wheel is new And the replacement operation takes a lot of time and effort (see, for example, Patent Document 1 below).

Japanese Patent Application Laid-Open No. 10-265161

  This embodiment is made in consideration of the above problems, and an object of the present invention is to provide a step of a passenger conveyor which can easily replace the rear wheel without lifting the step.

  The steps of the passenger conveyor according to the embodiment include a cleat body on which the passenger rides, a riser body extending downward from one end of the cleat body in the traveling direction, and a step for supporting the cleat body and the riser body. In a step of a passenger conveyor having a frame and a rear wheel provided at one end of the step frame in the direction of travel, the step frame being attached to an endless step chain and circulatingly moving, the step frame is the rear wheel And a holding hole for holding the shaft portion, wherein the holding hole is formed by a plurality of members divided around the axis of the shaft portion.

The figure which shows the example of a schematic structure of the passenger conveyor by which the step of the passenger conveyor which concerns on embodiment was applied. The perspective view of the step of the passenger conveyor which concerns on embodiment. The side view of the step of the passenger conveyor which removed the rear wheel. The principal part enlarged side view of the step of the passenger conveyor of the state where the holding hole was opened. The principal part enlarged view of FIG.

  In the present embodiment, the step 50 of the escalator will be described as being installed across the upper and lower floors of a building as illustrated in FIG. 1 as the passenger conveyor 10.

  The passenger conveyor 10 includes a main frame 11 called a truss installed under the floor, straddling the upper and lower floors of a building or the like.

  Inside the main frame 11, a pair of left and right sprockets 12 are disposed respectively on the upper floor side and the lower floor side, and a pair of left and right sprockets is disposed between the upper floor sprocket 12 and the lower floor sprocket 12. An endless step chain 30 is wound around each. At least one of the upper floor side or lower floor side sprockets 12 is configured to rotate by driving a drive device 14 having an electric motor, a reduction gear, and the like.

  A pair of left and right balustrades 16 are erected in parallel to each other on the main frame 11 at predetermined intervals corresponding to the width of the steps 50. A handrail belt 17 is mounted around each balustrade 16. The handrail belt 17 circulates around the balustrade 16 in synchronization with the circulating movement of the step 50 by the drive of the drive device 14.

  As shown in FIG. 2 and FIG. 3, the step 50 is integrally extended from the cleat body 52 on which the passenger rides and an end of one side (left side in FIG. 3) of the direction of movement of the cleat body 52. A riser body 54 for closing the step, an aluminum die-cast step frame 56 supporting the cleat body 52 and the riser body 54, and a rear wheel 60 provided at one end of the step frame 56 in the traveling direction Prepare.

  The step frame 56 is provided with a recess 57 for holding roller shafts connecting the left and right step chains 30 at the other end (right side in FIG. 3) of the traveling direction. Front wheels 58 are rotatably attached to both ends of the roller shaft. By holding the roller shaft in the recess 57 provided in the step frame 56, the step 50 is attached to the step chain 30, and the front wheel 58 is disposed at the other end in the traveling direction.

  A rear wheel holding portion 70 for holding the rear wheel 60 below the riser body 54 is provided at one end of the step frame 56 in the direction of travel. The rear wheel holding portion 70 will be described later.

  Guide rails 13 are disposed on both sides in the width direction of the step 50 along the traveling direction of the step 50 and fixed to the main frame 11 by bolts or the like (see FIG. 1). The guide rail 13 has a rolling surface on which the front wheel 58 and the rear wheel 60 are provided on the step 50, and guides the front wheel 58 and the rear wheel 60 along the traveling direction of the step 50.

  Then, in the passenger conveyor 10, when the output of the drive unit 14 is transmitted to the sprocket 12 and the sprocket 12 rotates, the driving force is transmitted to the step chain 30 meshing with the sprocket 12 and is engaged with the sprocket 12 on the lower floor side. The passed step chain 30 circulates along the guide rails 13, and the user on the step 50 is transported from the lower floor to the upper floor or from the upper floor to the lower floor.

  Such operation of the passenger conveyor 10 is realized by controlling the drive device 14 by a control device (not shown) installed in the main frame 11. The control device is physically a computer having a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), and the like. The functions of the control device operate various devices in the passenger conveyor 10 under the control of the CPU by loading an application program held in the ROM into the RAM and executing it by the CPU, as well as data in the RAM and ROM This is realized by reading and writing.

  Next, the rear wheel holding portion 70 provided on the step frame 56 will be described based on FIGS. 3 to 5.

  The rear wheel holding portion 70 includes an upper member 72, a lower member 74, a hinge 76 and a fixing portion 80, and a holding hole 78 for holding the shaft portion 62 of the rear wheel 60 between the upper member 72 and the lower member 74. Form

  Specifically, the upper member 72 includes a lower surface and an upper recessed portion 78a recessed upward that opens outward in the step width direction. The lower member 74 includes an upper surface and a downwardly recessed lower recess 78b opening outward in the step width direction. As shown in FIG. 3, the rear wheel holding portion 70 overlaps the upper member 72 and the lower member 74 so that the opening of the upper concave portion 78 a and the opening of the lower concave portion 78 b coincide with each other. Is formed. That is, in the present embodiment, the upper member 72 and the lower member 74 are members divided around the axis of the shaft portion 62 forming the holding hole 78. The upper member 72 is a member provided with an upper recess 78a that abuts on the upper side of the shaft portion 62 of the rear wheel 60 in the vertical direction, and the lower member 74 is the lower side of the shaft portion 62 of the rear wheel 60 in the vertical direction. The lower concave portion 78b is a member provided with the lower concave portion 78b.

  The upper member 72 is provided integrally with the step frame 56 and is fixed to the step frame 56. The lower member 74 is connected to the step frame 56 via a hinge 76 disposed at the other end (that is, the front wheel 58 side) of the lower member 74 in the direction of travel. As a result, the lower member 74 pivots about the axis of the hinge 76 away from the upper member 72 to open the holding hole 78 (see FIG. 4), or to move the shaft of the hinge 76 closer to the upper member 72. The holding hole 78 is closed in the circumferential direction by rotating around (see FIGS. 3 and 5).

  The fixing portion 80 is made of, for example, a fastener such as a screw, and in a state in which the upper member 72 and the lower member 74 are superimposed, that is, in a state in which the holding hole 78 is closed. Fix it.

  In the step 50 of the passenger conveyor 10 having such a configuration, the lower member 74 is pivoted about the axis of the hinge 76 to open the holding hole 78 so as to be separated from the upper member 72 with the fixing portion 80 removed. Then, after the shaft portion 62 of the rear wheel 60 is placed in the lower recess 78b provided in the lower member 74, the lower member 74 is pivoted about the axis of the hinge 76 to close the holding hole 78, The lower member 74 is fixed to the upper member 72 by the fixing portion 80. Thereby, the rear wheel holding portion 70 holds the shaft portion 62 of the rear wheel 60 between the upper side member 72 and the lower side member 74 so as not to rotate.

  In the embodiment as described above, the holding hole 78 for holding the shaft portion 62 of the rear wheel 60 is divided around the axis of the shaft portion 62 by the upper member 72 and the lower member 74. By separating the lower member 74, the holding hole 78 can be opened. Therefore, the rear wheel 60 can be attached to and detached from the step frame 56 without inserting and removing the rear wheel 60 outward in the width direction of the step 50, and the rear wheel 60 is replaced with a new one without lifting the step to be replaced. Can. Thereby, the working efficiency of the replacement work of the rear wheel 60 is improved.

  In the present embodiment, the holding hole 78 is formed by two members of the upper member 72 and the lower member 74, the upper member 72 is fixed to the step frame 56, and the lower member 74 is hinged to the step frame 56. The rear wheel 60 can be supported by the lower member 74 at the time of replacement, thereby improving the working efficiency.

  In this embodiment, since the hinge 76 connecting the lower member 74 and the step frame 56 is disposed on the front wheel 58 side of the lower member 74, when the upper member 72 and the lower member 74 are separated, the step 50 The holding hole 78 is opened toward the outside of the rear wheel 60 to facilitate replacement of the rear wheel 60.

(Modification example)
The above embodiments are presented as examples and are not intended to limit the scope of the invention. This novel embodiment can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention.

  For example, the holding hole 78 may be formed by three or more members divided around the axis of the shaft portion 62 of the rear wheel 60. Also in this case, the holding holes 78 can be opened, and the work efficiency of the replacement work of the rear wheel 60 is improved.

  Alternatively, the lower member 74 may be fixed to the step frame 56, and the upper member 72 may be connected to the step frame 56 via a hinge. Also in that case, in addition to the effects described above, the upper member 72 is supported by the lower member 74 fixed to the step frame 56 in the state where the holding hole 78 is closed. There is no need to support the member 72, and the work efficiency of the rear wheel 60 replacement work is further improved.

  In the embodiment described above, one side of the upper member 72 and the lower member 74 in the traveling direction is connected by the fixing portion 80 made of a screw, and the other side is connected by the hinge 76. However, the upper member 72 and the lower member Both sides in the traveling direction of 74 may be connected by a fixing portion 80 such as a screw.

DESCRIPTION OF SYMBOLS 10 ... Passenger conveyor, 11 ... Main frame, 12 ... Sprocket, 13 ... Guide rail, 14 ... Drive device, 15 ... Step, 16 ... Barrage, 17 ... Handrail belt, 50 ... Step, 52 ... Cleat body, 54 ... Riser body , 56: step frame, 57: front wheel recess, 58: front wheel, 60: rear wheel, 62: shaft portion, 70: rear wheel holding portion, 72: upper member, 74: lower member, 76: hinge, 78: holding Hole, 78a: Upper recess, 78b: Lower recess, 80: Fixing portion

The steps of the passenger conveyor according to the embodiment include a cleat body on which the passenger rides, a riser body extending downward from one end of the cleat body in the traveling direction, and a step for supporting the cleat body and the riser body. The step frame of a passenger conveyor having a frame and a rear wheel provided at one end of the step frame in the traveling direction and attached to an endless step chain for cyclical movement of the passenger conveyor It has a holding hole for holding the shaft of the ring, the holding hole is formed by a plurality of members divided around the axis of the shaft , the holding hole is divided up and down by two members, the holding hole A member forming the lower side is fixed to the step frame, and a member forming the upper side of the holding hole is fixed to the step frame via the hinge .

Claims (7)

A cleat body on which a passenger rides, a riser body extending downward from one end of the cleat body in the traveling direction, a step frame supporting the cleat body and the riser body, and a traveling direction of the step frame And in a step of a passenger conveyor which is mounted on an endless step chain and is cyclically moved, and a rear wheel provided at an end of one side of the
The step frame has a holding hole for holding a shaft portion of the rear wheel, and the holding hole is formed by a plurality of members divided around the axis of the shaft portion. The holding hole is formed by two members divided around the axis of the shaft,
The step of the passenger conveyor according to claim 1, wherein one of the members is fixed to the step frame, and the other member is fixed to the step frame via a hinge.   The step of the passenger conveyor according to claim 2, wherein the holding hole is divided up and down by two members.   The passenger conveyor according to claim 3, wherein the member forming the upper side of the holding hole is fixed to the step frame, and the member forming the lower side of the holding hole is fixed to the step frame via the hinge. Step.   The passenger conveyor according to claim 3, wherein the member forming the lower side of the holding hole is fixed to the step frame, and the member forming the upper side of the holding hole is fixed to the step frame via the hinge. Step.   The step of the passenger conveyor according to any one of claims 3 to 5, wherein the hinge is provided on the other side in the traveling direction of the other member.   The step of the passenger conveyor according to any one of claims 1 to 6, wherein the plurality of members are fixed by screws.

Images