JP2009249146A - Maintenance apparatus for passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a maintenance apparatus for a passenger conveyor allowing the operation of a switch of an emergency stop means to be confirmed in the operating state of a passenger conveyor. <P>SOLUTION: The maintenance apparatus provided for confirming the operation of the switch 15 of the emergency stop means capable of detecting contact with a floor 2 with the lift of the floor 2, comprises a bracket 21 mountable to the floor by screwing a screw 20 into a threaded hole 3; a reaction receiver 22 set to a length dimension shorter than a dimension between a comb 5 and a turning shaft 6b, with one end joined to the bracket and with the other end extended horizontally in the anti-comb direction in contact with the upper face of the floor; and a lever 23 set to a length dimension to at least the twice the length dimension of the reaction receiver, with one end joined to the bracket and the other end extended vertically upward. The operation of the switch is confirmed by this maintenance apparatus in the operating state of the passenger conveyor, and the operation of the switch can be confirmed by a clear physical phenomenon that a footstep 1 stopped. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a passenger conveyor maintenance device, and more particularly to a passenger conveyor maintenance device for confirming the operation of emergency stop means for detecting foreign matter or shoes being caught between a floor and a step.

  The passenger conveyor boarding / exiting part is in a state where the floor is stopped with respect to the moving step, so that an accident in which the passenger loses balance tends to occur. In particular, if the comb at the boarding / exiting portion is missing, shoes may be caught between the steps and the floor, which may lead to a serious accident. Therefore, in order to prevent such an accident, there is a passenger conveyor provided with an emergency stop means for detecting that a foreign object or shoes are caught between the floor and the step, and the foreign object or shoes are caught between the step and the floor. In some cases, the switch detects that the floor has been lifted and stops the movement of the steps in response to this detection.

Although it is necessary to check the operation of this switch periodically, the floor having this mechanism has a structure in which the floating is restrained by a spring in order to prevent malfunction. For this reason, in order to operate the switch, it is necessary to lift the floor with a relatively large force of 70 kgf or more, which is a heavy physical burden on the field maintenance personnel. In order to solve this problem, it has been proposed to fix the hire on the floor and steps, and to fix the rod to the floor tip and to lift the rod by rotating the nut provided on the hire ( For example, see Patent Document 1).
JP-A-6-206682 (FIG. 1)

  However, in the above-described conventional system, the hires are arranged between the floor and the steps, and in order to check the operation of the switch, it is necessary to stop the operation of the passenger conveyor and do not move the steps. There is. Then, although the operation of the switch is confirmed, it can be considered to confirm the operation sound of the switch as a simple method. However, at the site where the surrounding sound is loud, such as a station building, the operation sound of the switch cannot be heard and other methods must be taken. For this reason, conventionally, the operation of the switch has been confirmed by obtaining control information from the microcomputer in the control panel of the passenger conveyor, and therefore, there has been a problem that it takes a lot of time to prepare for wiring connection and the like.

  The present invention has been made from the above-described prior art, and an object thereof is to provide a passenger conveyor maintenance device capable of checking the operation of the emergency stop means switch while the passenger conveyor is in operation. It is in.

  In order to achieve the above object, an invention according to claim 1 of the present invention is provided at a plurality of steps that move obliquely upward or horizontally and carry passengers, and forward and backward in the advancing direction of these steps. A floor capable of retracting the step vertically downward, a screw hole provided on the step side of the floor, and being fixed to the floor by screwing a screw into the screw hole, the floor and the step A plurality of combs arranged at the boundary, a rotation support means provided at an end of the floor opposite to the comb and rotatably supporting the floor via a rotation shaft, and provided on the step side of the floor A through hole, a rod attached to a frame of a passenger conveyor and extending vertically upward through the through hole, a spring attached to the rod and pressing the floor downward vertically, and the floor and the frame Adjusting means for adjusting the distance in the vertical direction, and predetermined from the floor In a passenger conveyor maintenance device that is disposed at a height distant from the floor and has a switch for emergency stop means that can detect contact with the floor as the floor is lifted, a screw is screwed into the screw hole. The bracket is attachable to the floor, and one end is joined to the bracket, the other end is in contact with the top surface of the floor, and extends in the anti-comb horizontal direction, and between the comb and the rotating shaft. A reaction force receiver set to a length dimension shorter than the dimension, one end joined to the bracket, the other end extending vertically upward, and at least twice as long as the length dimension of the reaction force receiver And a lever set to a size.

  In the invention according to claim 1 of the present invention configured as described above, when performing the operation check of the switch of the emergency stop means, first, a part of the plurality of combs fixed to the floor with screws is removed, Attach the maintenance device bracket using the removed screw holes. And, while the passenger conveyor is in operation, the lever that extends vertically upward from the bracket is tilted to the opposite step side, so that the force acts on the end of the reaction force receiver that extends from the bracket in the anti-comb horizontal direction and rotates. The floor is lifted by the shaft as a fulcrum, and when the floor is lifted by a predetermined dimension, the switch comes into contact with the switch, and the emergency stop means operates accordingly, and the passenger conveyor stops. Since the maintenance device of the present invention is arranged from the comb portion to the floor, the operation check operation of the switch can be performed in a state in which the passenger conveyor is operated, thereby stopping the steps of the passenger conveyor. The clear physical phenomenon enables maintenance personnel to confirm that the emergency stop switch has been activated.

  The invention according to claim 2 of the present invention is characterized in that a reinforcing member disposed obliquely is provided so as to connect the reaction force receiver and the lever.

  In the invention according to claim 1 of the present invention configured as described above, since the reinforcing member is provided obliquely so as to connect the reaction force receiver and the lever, the operation check of the switch of the emergency stop means is confirmed. It is possible to prevent the device from being deformed or damaged even when a relatively large force is applied to the lever during the operation.

  According to the present invention, the maintenance staff can confirm that the switch of the emergency stop means has been operated by a clear physical phenomenon that the steps of the passenger conveyor have stopped, and the troublesome wiring connection and the like like the conventional one can be saved. Therefore, it is possible to reduce labor and time required for the work.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a passenger conveyor maintenance device according to the present invention will be described with reference to the drawings.

  1 is a perspective view showing an embodiment of a passenger conveyor maintenance device according to the present invention, FIG. 2 is a side view of part A shown in FIG. 1, FIG. 3 is a longitudinal sectional view of part B shown in FIG. FIG. 2 is a side view showing a state in which passenger shoes are sandwiched between a floor and a step.

  As shown in FIGS. 1 and 2, the passenger conveyor is a plurality of steps 1 that move obliquely upward or horizontally and convey passengers, a tread surface 1 a provided on these steps 1, and a traveling direction of the steps 1. A floor 2 provided in front and rear and capable of retracting the step 1 vertically downward, a screw hole 3 provided on the step side of the floor 2, and a screw 4 are screwed into the screw hole 3 to be engaged with the floor 2. A plurality of combs 5 which are fixed and arranged at the boundary between the floor 2 and the step 1, and a rotation support means 6 which is provided at an end of the floor 2 on the side opposite to the comb and rotatably supports the floor 2; A bearing 6a provided at the end of the floor 2 on the side opposite to the comb, a rotating shaft 6b inserted into a hole of the bearing 6a and capable of rotating the floor 2, and a rotating shaft 6b attached to the frame 7 of the passenger conveyor. The bracket 6c to which the ends are joined, the through hole 8 provided on the step side of the floor 2, and the nut 9a A rod 9 attached to the frame 7 and extending vertically upward through a through hole 8; a spring 10 attached to the rod 9 to press the floor 2 vertically downward; a plate 11 that uniformly presses the spring 10; And adjusting means 13 for adjusting the vertical distance between the floor 2 and the frame 7, that is, screwed into a screw hole provided in the floor 2 and the nut 12 for adjusting the pressing force of the spring 10. Bolts 13a whose ends are in contact with the frame 7 and nuts 13b for fixing the bolts 13a to the floor 2 are arranged at height positions separated from the floor 2 via brackets 14, and the floor 2 is raised as the floor 2 is lifted. And an emergency stop means switch 15 capable of detecting contact with 2.

  And the maintenance apparatus of the passenger conveyor of this embodiment has the bracket 21 which can be attached to the floor 2 by screwing the screw 20 into the screw hole 3, the one end being joined to the bracket 21, and the other end being the floor 2. The reaction force receiver 22 that extends in the anti-comb horizontal direction while being in contact with the upper surface of the wire and is set to a length shorter than the dimension between the comb 5 and the rotating shaft 6b, and one end are joined to the bracket 21 The other end extends vertically upward, and the lever 23 is set to a length that is at least twice as long as the length of the reaction force receiver 22, and obliquely connects the reaction force receiver 22 and the lever 23. And a reinforcing member 24 disposed on the surface.

  In the passenger conveyor configured as described above, as shown in FIG. 4, for example, when a passenger's shoes 30 are sandwiched between the floor 2 and the step 1, the spring force of the spring 10 for restraining the floating of the floor 2. The floor 2 is lifted through the rotation support means 6, and when the floor 2 is lifted by a predetermined size, the floor 15 comes into contact with the switch 15, and the emergency stop means stops the movement of the step 1 accordingly. In order to maintain the safety of the passenger conveyor, the switch 15 and the emergency stop means are regularly checked for operation.

  When confirming the operation of the switch 15 of the emergency stop means, first, a part of the plurality of combs 5 fixed to the floor 2 with the screws 4 is removed, and maintenance is performed with the screws 20 using the screw holes 3 of the removed parts. The bracket 21 of the apparatus is attached. 1 and 3, the maintenance device extends in the anti-comb horizontal direction with the other end of the reaction force receiver 22 in contact with the upper surface of the floor 2, and the other end of the lever 23 is vertically upward. It becomes an extended state. Next, when the passenger conveyor is operated, the lever 23 is tilted to the opposite step side, whereby a force is applied to the end of the reaction force receiver 22 extending from the bracket 21 in the anti-comb horizontal direction so that the rotating shaft 6b is a fulcrum. Then, the floor 2 is lifted, and when the floor 2 is lifted by a predetermined size, the switch 15 is contacted, and the emergency stop means operates accordingly, and the passenger conveyor stops.

  According to the present embodiment, since the maintenance device is arranged from the comb portion to the floor 2, the operation check operation of the switch 15 can be performed in a state where the passenger conveyor is operated. The maintenance person can confirm that the switch 15 of the emergency stop means has been operated by a clear physical phenomenon that the conveyor step 1 has stopped. As a result, it is possible to save the labor and time required for work by eliminating the troublesome work such as conventional wiring connection.

  Further, since the length dimension of the reaction force receiver 22 is set to be shorter than the dimension between the comb 5 and the rotating shaft 6b, the floor 2 with the rotating shaft 6b as a fulcrum by tilting the lever 23 to the opposite step side. Can be lifted smoothly. Further, since the length of the lever 23 is set to be at least twice as long as the length of the reaction force receiver 22, the floor 2 can be easily lifted by the lever principle. Furthermore, since the reinforcing member 24 is provided obliquely so as to connect the reaction force receiver 22 and the lever 23, a relatively large force is applied to the lever 23 when checking the operation of the switch 15 of the emergency stop means. Even if it acts, it is possible to prevent the device from being deformed or damaged.

  In addition, when a balance is provided at the tip of the lever 23 of the maintenance device and the operation check operation of the switch 15 is performed, by applying a force through the balance, based on the magnification of the applied force and the value when the switch 15 is operated, The operating force at the time of operating the switch 15 can also be measured.

It is a perspective view which shows one Embodiment of the maintenance apparatus of the passenger conveyor which concerns on this invention. It is a side view of the A section shown in FIG. It is a longitudinal cross-sectional view of the B section shown in FIG. It is a side view showing the state where passenger's shoes were pinched between the floor and the step.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Step 1a Tread surface 2 Floor 3 Screw hole 4 Screw 5 Comb 6 Rotation support means 6a Bearing 6b Rotation shaft 6c Bracket 7 Frame 8 Through-hole 9 Rod 9a Nut 10 Spring 11 Plate 12 Nut 13 Adjustment means 13a Bolt 13b Nut 14 Bracket 15 Switch 20 Screw 21 Bracket 22 Reaction force receiver 23 Lever 24 Reinforcement member 30 Shoes

Claims (2)

A plurality of steps that move obliquely upward or horizontally and carry passengers, a floor that is provided forward and backward in the direction of travel of these steps, and that can be stored vertically downward, on the step side of the floor A screw hole provided; a plurality of combs fixed to the floor by screwing a screw into the screw hole; and disposed at a boundary between the floor and the step; and an end of the floor on the side opposite to the comb A rotation support means for rotatably supporting the floor via a rotation shaft, a through hole provided on the step side of the floor, and a frame attached to a passenger conveyor via the through hole. A rod that extends vertically upward, a spring that is attached to the rod and presses the floor vertically downward, adjustment means that adjusts the vertical distance between the floor and the frame, and a height that is a predetermined distance away from the floor Before the floor is lifted In the maintenance unit of the passenger conveyor having a switch detectable emergency stop means contact with the floor,
A bracket that can be attached to the floor by screwing a screw into the screw hole, and one end is joined to the bracket, and the other end is in contact with the top surface of the floor and extends in the anti-comb horizontal direction, And a reaction force receiver set to a length shorter than the dimension between the comb and the rotation shaft, one end of the reaction force receiver is joined to the bracket, the other end extends vertically upward, and the reaction force receiver A passenger conveyor maintenance device comprising: a lever set to a length dimension at least twice as long as the length dimension.   The maintenance device for a passenger conveyor according to claim 1, further comprising a reinforcing member arranged obliquely so as to connect between the reaction force receiver and the lever.

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