JP2011148628A - Step device for man conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and surely confirm the mounted state of steps during normal operation as well as during installation and maintenance of a man conveyor. <P>SOLUTION: The step fixed to a step shaft 6 includes: a step board 8 having a confirmation hole 8a; a frame for supporting the step board 8; and a mounting element 14 fixing the frame to the step shaft 6 by clamping a clamping bolt 15 into a normal position while holding the step shaft 6 appropriately. A confirming means is disposed below the step board 8. Thereby, when the clamping bolt 15 is clamped down the normal position, part of the confirming means enters the confirmation hole 8a from below and is arranged in the confirmation hole 8a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a step device for a man conveyor that can easily check the mounting state of a step.

  In man conveyors such as escalators and moving walkways, steps for passengers to ride when moving are attached to a predetermined step shaft.

  Patent Document 1 below discloses a conventional technique for attaching a step to a step shaft. Specifically, in the device described in Patent Document 1, the step is fixed by arranging an attachment provided on the step so as to sandwich the step shaft and tightening with a bolt.

JP-A-7-330266

  If the step is attached to the step shaft during installation or maintenance of the man conveyor, the worker will ensure that the attachment pinches the step shaft properly or that the bolts for fastening the attachment will be securely attached. It is necessary to visually check the mounting state such as whether it is. However, in the conventional man conveyor, including the one described in Patent Document 1, the mounting state of the step cannot be confirmed from the top of the step. The work of repeatedly looking in from the front or back to confirm the mounting state was repeated.

  However, with such a confirmation method, it becomes difficult to confirm the attachment state of the last attachment step (hereinafter referred to as “final attachment step”) on the step shaft. That is, when the final attachment step is attached to the step shaft, each step is continuously arranged in the front and rear, and there is no space for confirming the attachment state between the steps. For this reason, when the attachment of the final attachment step is completed, the worker has to find a very small gap between the steps from the machine room of the man conveyor to confirm the attachment state. As a result, it takes time and effort to open and close the machine room lid and to enter and exit the machine room, and work efficiency may be greatly reduced, and workers may come into contact with equipment in the machine room. .

  Furthermore, in the conventional man conveyor configuration, a person other than a worker who is a specialist engineer, such as a man conveyor administrator, cannot confirm the step attachment state in daily operation management. For this reason, there is a deficiency in the installation of the step, and when the bolts and the attachment are damaged due to a load during operation, the operation of the man conveyor must be stopped for a long time, It was supposed to cause trouble.

  The present invention has been made to solve the above-described problems, and its purpose is not only during installation and maintenance of the man conveyor, but also during the normal operation, the mounting state of the steps easily and reliably. It is providing the step device of the man conveyor which can confirm.

  A man conveyor stepping device according to the present invention is a man conveyor stepping device fixed to a predetermined step shaft, and has a check hole penetrating vertically, and a tread plate whose upper surface forms a tread surface and supports the tread plate A frame that is provided on the frame, and is disposed below the tread, an attachment for fixing the frame to the step shaft, by tightening a predetermined tightening bolt to a proper position with the step shaft properly sandwiched. Checking means in which a part of the fastening bolt enters the confirmation hole and a part thereof is placed in the confirmation hole by tightening the tightening bolt to a proper position with the attachment pinching the step shaft appropriately. , With.

  With the man conveyor stepping device according to the present invention, it is possible to easily and surely confirm the step mounting state not only during installation or maintenance of the man conveyor but also during normal operation.

It is a side view which shows the whole structure of a man conveyor. It is a side view which shows the step apparatus of the man conveyor in Embodiment 1 of this invention. It is a principal part side view of the step apparatus shown in FIG. It is a principal part detail drawing of the step apparatus shown in FIG. It is a principal part top view of the step apparatus shown in FIG. FIG. 3 is a plan view of the tread shown in FIG. 2.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a side view showing the overall configuration of the man conveyor. In the following, an escalator used when moving between the upper and lower floors as an example of a man conveyor will be specifically described, and description of other examples such as a moving sidewalk will be omitted.

  In FIG. 1, 1 is the main frame of the escalator spanned between the upper and lower floors, 2 is the step that the user of the escalator rides when moving between the upper and lower floors, 3 is driven to synchronize with step 2 4 is an inner plate (railing) made of a glass panel or the like, and 5 is a drive motor for driving the step 2 or the moving handrail 3.

  Each step 2 is fixed to a predetermined step shaft 6 (not shown in FIG. 1). Then, each step shaft 6 is connected to an endless step chain 7 at equal intervals, whereby the step 2 is driven by the driving force of the drive motor 5 and circulates between both entrances and exits.

  Hereinafter, the configuration of step 2 will be described in detail with reference to FIGS. 2 is a side view showing a step device for a man conveyor according to Embodiment 1 of the present invention, FIG. 3 is a side view of a main part of the step device shown in FIG. 2, and FIG. 4 is a detailed view of the main part of the step device shown in FIG. 5 is a plan view of an essential part of the step device shown in FIG. 2, and FIG. 6 is a plan view of the tread shown in FIG.

  Each step 2 includes a tread 8 whose upper surface forms the tread of the passenger, a riser 9 corresponding to the raised portion of the stairs, a frame 10 that supports the entire step 2, such as the tread 8 and the riser 9, and a rear wheel 11 The mounting unit 12 for fixing the step 2 to the step shaft 6 and the confirmation unit 13 for indirectly confirming the mounting state of the step 2 from above the step 2 constitute the main part.

A check hole 8a and a tightening tool insertion hole 8b, which will be described later, are formed in the tread plate 8. The confirmation hole 8a and the tightening tool insertion hole 8b penetrate the tread plate 8 vertically and are formed at both ends of the tread plate 8, respectively.
In addition, since each structure of the riser 9, the frame 10, and the rear-wheel 11 is the same as the past, the description is abbreviate | omitted.

  The attachment means 12 includes an attachment 14 provided on the frame 10 and a fastening bolt 15. The mounting element 14 is composed of two arc-shaped members, one of which is fixed via a pin 16 so as to be freely opened and closed.

  The tightening bolt 15 is for tightening the two arcuate members of the mounting element 14 and holding the step shaft 6 between the mounting elements 14. That is, the mounting element 14 fixes the frame 10 (that is, step 2) to the step shaft 6 in an appropriate state by the tightening bolt 15 being tightened to a predetermined regular position with the step shaft 6 being properly sandwiched. To do.

  The tightening tool insertion hole 8b is for inserting a tool for tightening the tightening bolt 15, such as a tightening wrench, from above the tread plate 8. That is, the tightening tool insertion hole 8 b is formed so that the worker can perform the tightening operation of the tightening bolt 15 from above the tread plate 8.

  When the frame 10 is fixed to the step shaft 6 in an appropriate state by the mounting element 14, the confirmation means 13 (the tightening bolt 15 is tightened to the proper position with the mounting element 14 sandwiching the step shaft 6 appropriately). A part of which enters into the confirmation hole 8a of the tread plate 8 from below and is disposed in the confirmation hole 8a.

Specifically, the confirmation means 13 is disposed below the tread board 8, and its main part is constituted by an opposing arm (opposing part) 17, a first lever 18, a second lever 19, a confirmation mark part 20, and a guide 21. Has been.
The facing arm 17 is provided at one end of the first lever 18. A part of the opposing arm 17 is opposed to the tip of the fastening bolt 15, and when the fastening bolt 15 is fastened to a predetermined position before reaching the normal position, the opposing portion is the fastening bolt. It arrange | positions so that the front-end | tip of 15 may be contacted.

  As described above, the first lever 18 is provided with the opposing arm 17 at one end. Further, the intermediate portion of the first lever 18 is rotatably provided on the mount 14 or the frame 10 via the support member 22. Therefore, the first lever 18 is displaced by the opposing arm 17 being pushed by the tip of the tightening bolt 15, and the angle thereof changes according to the tightening state of the tightening bolt 15.

  The second lever 19 is provided integrally with the other end of the first lever 18 and is disposed so as to extend upward from the other end of the first lever 18. For this reason, the second lever 19 moves up and down when the first lever 18 is displaced in conjunction with the first lever 18.

  The confirmation mark portion 20 is provided at the upper end portion of the second lever 19 and is disposed immediately below the confirmation hole 8a. When the second lever 19 moves up and down, the confirmation mark portion 20 provided at the upper end thereof is also displaced up and down. The guide 21 is for guiding the vertical movement of the confirmation mark portion 20, and is provided on the lower surface of the tread board 8, for example.

  The confirmation mark portion 20 is always urged downward (in a direction away from the tread plate 8) by a spring 23 provided between the bottom surface of the tread plate 8 and the spring 23. For this reason, if the fastening bolt 15 is not in contact with the opposing arm 17, the confirmation mark portion 20 is pushed back below the tread plate 8 by the urging force of the spring 23 and is disposed at a position facing the confirmation hole 8 a from below. The From this state, when the fastening bolt 15 is fastened to the fastening portion of the mounting element 14, the opposing arm 17 is pushed by the tip of the fastening bolt 15, and the first lever 18 and the second lever 19 are displaced, and the confirmation mark portion 20 is guided by the guide 21 and moves upward.

  When the tightening bolt 15 is tightened to a predetermined position, the upper end portion of the confirmation mark portion 20 enters the confirmation hole 8a from below and is disposed in the confirmation hole 8a. When the tightening bolt 15 is further tightened and reaches the normal position, the upper surface of the confirmation mark portion 20 is disposed substantially flush with the upper surface of the tread plate 8.

  In order to reliably prevent the upper end portion of the confirmation mark portion 20 from protruding from the upper surface of the tread plate 8 when the tightening bolt 15 is tightened to the normal position, when the tightening bolt 15 reaches the normal position, You may comprise so that the upper surface of the confirmation mark part 20 may be arrange | positioned in the state dented from the upper surface of the tread board 8 slightly. Further, the upper surface of the confirmation mark portion 20 may be colored with a conspicuous color different from the upper surface of the tread plate 8 so that the upper surface position of the confirmation mark portion 20 can be easily grasped from above the tread plate 8. On the contrary, the upper surface of the confirmation mark portion 20 may be the same color as the upper surface of the tread plate 8 so that the confirmation mark portion 20 is not noticeable.

  According to the first embodiment of the present invention, the worker can easily and surely confirm the mounting state of Step 2 from above Step 2 at the time of installation or maintenance of the escalator. In particular, it is not necessary to open and close the lid of the machine room in order to confirm the mounting state in the final mounting step, and the working efficiency can be greatly improved.

In addition, since the attachment state can be confirmed from above step 2, even a person other than a worker who is a professional engineer, for example, an escalator manager or the like, attaches step 2 in daily operation management. The state can be confirmed. Further, if the upper surface of the confirmation mark portion 20 is colored with a conspicuous color different from the upper surface of the tread board 8, the above confirmation work can be performed even during operation of the escalator, and the attachment state in step 2 can be confirmed. There is no need to stop the escalator to do this.
And when an incompleteness is found in the attachment state of step 2, the expansion of damage can be prevented reliably by immediately contacting a maintenance company or the like.

DESCRIPTION OF SYMBOLS 1 Main frame 2 Step 3 Moving handrail 4 Inner plate 5 Drive motor 6 Step shaft 7 Step chain 8 Tread plate 8a Confirmation hole 8b Tightening tool insertion hole 9 Riser 10 Frame 11 Rear wheel 12 Mounting means 13 Checking means 14 Mounter 15 Tightening Bolt 16 Pin 17 Opposing arm 18 First lever 19 Second lever 20 Confirmation mark portion 21 Guide 22 Support member 23 Spring

Claims (6)

A man conveyor stepping device fixed to a predetermined step axis,
A tread having a check hole penetrating vertically and having an upper surface forming a tread;
A frame for supporting the tread;
An attachment for fixing the frame to the step shaft by tightening a predetermined tightening bolt to a normal position in a state where the step shaft is properly sandwiched;
When the tightening bolt is tightened to a normal position in a state where it is disposed below the tread plate and the mounting element appropriately sandwiches the step shaft, a part of the tightening bolt enters the confirmation hole from below, Confirmation means, part of which is disposed in the confirmation hole;
A step device for a man conveyor characterized by comprising:   The confirmation means is configured such that the upper surface of the part disposed in the confirmation hole is formed on the tread plate when the tightening bolt is tightened to a normal position in a state in which the mounting member appropriately sandwiches the step shaft. 2. The step device for a man conveyor according to claim 1, wherein the step device is arranged so as to be flush with the upper surface or slightly recessed from the upper surface of the tread.   The step device of the man conveyor according to claim 1 or 2, wherein the confirmation means has the upper surface of the part colored with a conspicuous color different from the upper surface of the tread surface. The confirmation means includes
A facing portion disposed to face the tip of the tightening bolt;
A lever that is displaced when the facing portion is pressed against the tip of the clamping bolt;
A confirmation mark provided on the lever;
The tightening bolt is tightened to a normal position in a state where the mounting member appropriately sandwiches the step shaft, and the confirmation mark portion is disposed in the confirmation hole as the lever is displaced. The step device for a man conveyor according to any one of claims 1 to 3, wherein The confirmation means includes
A guide provided on the lower surface of the tread board for guiding the vertical movement of the confirmation mark portion;
5. The man conveyor stepping device according to claim 4, further comprising:   6. The man according to claim 1, wherein a fastening tool insertion hole for inserting a fastening tool of the fastening bolt from above the foot board is formed in the foot board. Conveyor step device.

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