JP2010222089A - Oil pan cleaning device of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil pan cleaning device of a passenger conveyor, suppressing rotation of support members together with front shafts of steps. <P>SOLUTION: This oil pan cleaning device 12 is provided with: the support members 12B mounted on front shafts 7a of the plurality of steps 3 connected endlessly via a chain 4; and a planar cleaning body 12A in sliding contact with an upper surface of an oil pan 5 extended along lower sides of the plurality of steps 3 by rotatably supporting one end of the cleaning body 12 on the support members 12B and extending the other end toward an advancing direction of the steps 3, and the cleaning device cleans dust deposited on the oil pan 5 by circulating and moving the steps 3. The oil pan cleaning device 12 is provided with a holding means for non-rotatably holding the front shafts 7a mounted with the support members 12B such as an adhesive tape 13 to be a rotation suppressing body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an oil pan cleaning device for a passenger conveyor used for cleaning dust or the like accumulated on an oil pan extending along the lower side of a passenger conveyor, and particularly attached to a front wheel shaft of a step.

  Conventionally, passenger conveyors were often provided for visitor services at department stores, etc., but recently, due to the development of transportation facilities, a lot of passenger conveyors have been installed for passenger lift services to the station platform. Many people use it. In this way, in passenger conveyors that are used by many people, dust that has fallen from people's clothing, etc., or dust that has been carried by the wind, enters the passenger conveyor through the gaps in the steps of the passenger conveyor, and It accumulates over a long period on the oil pan that extends along the side, and a large amount of accumulated dust can cause a failure of the passenger conveyor, or it can ignite due to some sparks, overheating, or afterglow of thrown tobacco. There was a risk of fire.

  Therefore, about half of the passenger conveyor's screwed steps were removed, and a worker performed a cleaning operation to sweep away dust accumulated on the oil pan with a scissors or a brush. Since the cleaning work performed in such a narrow space inside the passenger conveyor becomes dusty and oily, it not only increases the psychological pain of the worker, but also removes the heavy step and then attaches it. It was very hard work, and two to several workers spent half a day to a day for this work.

  In order to alleviate the heavy burden on the cleaning work of such workers, the mounting body as a cleaning body whose rear part is detachably attached to the front wheel axle of the step and tilts obliquely forward, and the lower surface and part of the mounting body are An oil pan cleaning device for a passenger conveyor that includes a scraper that overlaps and is rotatably attached to a lower end portion of an attachment main body and abuts on an upper surface of the oil pan is known (for example, see Patent Document 1).

  However, since the oil pan cleaning device for passenger conveyors disclosed in Patent Document 1 has a large size and a heavy weight, it is not easy to use and has not been widely used in the field.

  Therefore, as another prior art, an oil pan cleaning device for a passenger conveyor has been proposed which reduces the impact when sliding on the upper surface of the oil pan and is lightened by using cardboard or the like on the mounting body ( For example, see Patent Document 2).

JP-A-9-118487 JP 2008-213958 A

  Here, the oil pan cleaning device for a passenger conveyor disclosed in Patent Document 2 has a structure that is detachably attached to the upper rear portion of the step board of the step, but may not be attached to the tread board depending on the type of passenger conveyor. There is a problem that cleaning work cannot be performed. Then, although the method of attaching to the front axis | shaft of the step of a passenger conveyor like the oil pan cleaning apparatus of the patent document 1 mentioned above can be considered, the following concerns arise.

  FIG. 3 is a view for explaining the operation when a conventional oil pan cleaning device for a passenger conveyor is attached to the front shaft of a step, and FIG. 3 (a) is a view showing a main part when normal cleaning is performed. (B) is a figure which shows the principal part when abnormality arises at the time of cleaning.

  As shown in FIG. 3 (a), the conventional oil pan cleaning device 12 for a passenger conveyor includes a support member 12B attached to a front shaft 7a of a plurality of steps (not shown) connected endlessly via a chain 4. And a plate that is slidably in contact with the upper surface of the oil pan 5 that is supported by the support member 12B so that one end thereof is pivotable and the other end extends in the advancing direction of the step and extends along the lower side of the plurality of steps. 12A is provided.

  Then, these steps are circulated and moved by a driving device (not shown), and the dust accumulated on the oil pan 5 is cleaned by the cleaning body 12A. At this time, assuming that the resistance force received by the oil pan cleaning device 12 from the oil pan 5 is f and the angle between the cleaning body 12A and the oil pan 5 is θ, the load F applied to the oil pan cleaning device 12 is as follows (1) It becomes an expression.

F = f / cos θ (1)
In FIG. 3, the traveling direction of the steps is from right to left.

  However, in the oil pan cleaning device 12 of the conventional passenger conveyor disclosed in Patent Document 2 described above, since the cleaning body 12A is configured to be lightweight using cardboard or the like, the rigidity of the oil pan cleaning device 12 itself is low. It has become. Therefore, as shown in FIG. 3B, when the oil pan cleaning device 12 receives the resistance force f from the oil pan 5, the support member 12 </ b> B is easily rotated together with the front shaft 7 a. When the support member 12B rotates together with the front shaft 7a, the angle θ formed by the cleaning body 12A and the oil pan 5 increases, so that the load F applied to the oil pan cleaning device 12 becomes excessive from the equation (1). As a result, the oil pan cleaning device 12 may be damaged.

  The present invention has been made in view of the actual situation of the prior art, and an object thereof is to provide an oil pan cleaning device for a passenger conveyor that can prevent the support member from rotating together with the front shaft of the step. It is in.

  In order to achieve the above object, an oil pan cleaning device for a passenger conveyor according to the present invention includes a support member attached to a front shaft of a plurality of steps connected endlessly via a chain, and one end of the support member. A plate-shaped cleaning body that is rotatably supported and has the other end extending in the advancing direction of the step and is in sliding contact with the upper surface of the oil pan extending along the lower side of the plurality of steps; An oil pan cleaning device for a passenger conveyor that circulates and moves the plurality of steps to clean dust accumulated on the oil pan, and further includes a holding unit that holds the front shaft to which the support member is attached in a non-rotatable manner. It is characterized by that.

  The oil pan cleaning device for a passenger conveyor configured in this way makes the front shaft of the step to which the support member is attached non-rotatable by the holding means so that the support member can be used together with the front shaft even if it receives a resistance force from the oil pan. Rotation can be suppressed, and accordingly, the angle formed by the cleaning body and the oil pan can be kept small during cleaning. Thereby, it is possible to prevent the oil pan cleaning device from being damaged.

  Moreover, in the oil pan cleaning apparatus for passenger conveyor according to the present invention, in the invention, the holding member is attached to the support member from the front shaft located before and after the front shaft to which the support member is attached. It is characterized by comprising a pair of rotation restrainers which are respectively attached to the front shafts and support the front shafts in a non-rotatable manner.

  The oil pan cleaning device for a passenger conveyor configured in this manner supports the front shaft, to which the support member is attached, from the front and rear with a rotation restraining body, so that both the support member and the front shaft rotate around the axis of the front shaft. Can be reliably prevented, and the cleaning body can maintain a stable state with respect to the front shaft.

  Moreover, the oil pan cleaning apparatus for passenger conveyors according to the present invention is characterized in that, in the above-mentioned invention, the pair of rotation restrainers are each made of an adhesive tape. If comprised in this way, since it is only necessary to each attach these adhesive tapes to the front axis | shaft to which the support member was attached from the front axis | shaft located before and behind the front axis | shaft to which the support member was attached, attachment work is simple and manufacture Cost can be reduced.

  An oil pan cleaning device for a passenger conveyor according to the present invention includes a support member attached to a front shaft of a plurality of steps connected endlessly via a chain, and one end rotatably supported by the support member. And a plate-shaped cleaning body that slides on the upper surface of the oil pan extending along the lower side of the plurality of steps and extending the front shaft on which the support member is attached. By making the holding means non-rotatable, the support member can be prevented from rotating together with the front shaft even when a resistance force is received from the oil pan. Therefore, the angle formed between the cleaning body and the oil pan can be kept small during cleaning, and the oil pan cleaning device can be prevented from being damaged. Thereby, even if it is the cleaning body lightened using the corrugated cardboard etc., it can be used without producing abnormality.

It is a side view showing an escalator given as an example of a passenger conveyor to which an embodiment of an oil pan cleaning device according to the present invention is applied. It is a top view which shows the structure of this embodiment. It is a figure explaining the operation | movement at the time of attaching the oil pan cleaning apparatus of the conventional passenger conveyor to the front shaft of a step, (a) A figure which shows the principal part when normal cleaning is performed, (b) The figure shows the main part when an abnormality occurs during cleaning.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the oil pan cleaning apparatus of the passenger conveyor which concerns on this invention is demonstrated based on figures.

  FIG. 1 is a side view showing an escalator cited as an example of a passenger conveyor to which an embodiment of an oil pan cleaning apparatus according to the present invention is applied, and FIG. 2 is a plan view showing a configuration of the embodiment.

  One embodiment of an oil pan cleaning device for a passenger conveyor according to the present invention is applied to an escalator 1, for example, as shown in FIG. The escalator 1 includes a plurality of steps 3 connected endlessly via a chain 4, a balustrade 2 extending along the upper side of the steps 3, and a lower side of the plurality of steps 3. And an oil pan 5 and a pair of terminal gears 6 as a driving device for driving the chain 4 and circulatingly moving the steps 3. The step 3 includes a pair of front wheels 7 attached to a front shaft 7a to which the chain 4 is coupled, and a pair of rear wheels 8 that follow the front wheels 7, and each travels on a guide rail (not shown).

  As shown in FIG. 2, in one embodiment of the present invention, a support member 12B attached to the front shaft 7a of the step 3 traveling on the return side of the step 3, and one end of the support member 12B are rotatably supported. The plate-shaped cleaning body 12A that extends in the direction of travel of the step 3 and slidably contacts the upper surface of the oil pan 5 and a pair of front shafts that are positioned before and after the front shaft 7a to which the support member 12B is attached 7b to a front shaft 7a, and holding means for holding the front shaft 7a in a non-rotatable manner. The holding means is composed of a pair of rotation depressing bodies, for example, a pair of adhesive tapes 13 attached to each of the pair of front shafts 7b with tension applied to the front shaft 7a. Note that the steps 3 provided with the front shafts 7a and 7b are removed during cleaning. The cleaning body 12A is made of cardboard, for example.

  According to one embodiment of the present invention configured as above, the front shaft 7a of the step 3 to which the support member 12B is attached is supported by the adhesive tape 13 from the pair of front shafts 7b, respectively, so that it cannot rotate. Even if a resistance force is received from the oil pan 5, the support member 12B can be prevented from rotating together with the front shaft 7a, and accordingly, the angle formed by the cleaning body 12A and the oil pan 5 can be kept small during cleaning. . Thereby, the resistance force given to 12 A of cleaning bodies at the time of cleaning can be kept small, and it can prevent that an oil pan cleaning apparatus is damaged. Thus, even the cleaning body 12A made lighter by cardboard or the like can be used without any abnormality.

  Further, according to an embodiment of the present invention, the support member 12B is rotated around the axis together with the front shaft 7a during cleaning by supporting the front shaft 7a with the adhesive tape 13 from the pair of front shafts 7b positioned before and after the front shaft 7a. Can be reliably prevented from rotating. Thereby, it can prevent reliably that an oil pan cleaning apparatus is damaged, and durability can be improved.

  Further, according to one embodiment of the present invention, the front shaft 7a can be made non-rotatable only by attaching the adhesive tape 13 from the pair of front shafts 7b to the front shaft 7a. Can be reduced.

DESCRIPTION OF SYMBOLS 1 Escalator 3 Step 4 Chain 5 Oil pan 7 Front wheel 7a, 7b Front shaft 12 Oil pan cleaning apparatus 12A Cleaning body 12B Support member 13 Adhesive tape (rotation suppression body) [holding means]

Claims (3)

A support member attached to the front shaft of a plurality of steps connected endlessly via a chain, and one end of which is rotatably supported by the support member, and the other end is extended in the advancing direction of the step. A plate-shaped cleaning body that slides on the upper surface of the oil pan extending along the lower side of the plurality of steps, and circulates and moves the plurality of steps to clean the dust accumulated on the oil pan. In the oil pan cleaning device of the conveyor,
An oil pan cleaning device for a passenger conveyor, comprising holding means for holding the front shaft to which the support member is attached in a non-rotatable manner.   2. The oil pan cleaning device for a passenger conveyor according to claim 1, wherein the holding unit is configured to change the front shaft, which is located before and after the front shaft, to which the support member is attached, to the front shaft, to which the support member is attached. An oil pan cleaning device for a passenger conveyor, comprising a pair of rotation restrainers that are respectively attached and support the front shaft in a non-rotatable manner.   3. The oil pan cleaning apparatus for passenger conveyor according to claim 2, wherein the pair of rotation restrainers are each made of an adhesive tape.

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