JP2016003083A - Passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor that is able to prevent a lubricant dripping from a forward-side guide rail from adhering to a footstep and that enables a footstep stain prevention device to be installed on an existing passenger conveyor without using an existing guide rail and guide rail fixing part.SOLUTION: In an escalator according to the present invention, a frame body 1 has a plurality of cross-beams 15 having an inclination part 1C and arranged along the longitudinal direction of the frame body 1. A footstep stain prevention device for preventing adhesion of lubricant to a footstep 5 is arranged in an empty space part F formed between the cross-beams 15, a return-side footstep 5b, and a rear wheel 21 attached to the return-side footstep 5b, and provided over the entire area of the inclination part 1C. The footstep stain prevention device includes a drain oil plate composed of a plurality of separate plates 22 by which lubricant dripping from the forward-side guide rail 17 is dripped outside a return-side footstep 5b.

Description

  The present invention relates to a passenger conveyor such as an escalator equipped with a step pollution prevention device that prevents adhesion of lubricating oil to a step.

  An escalator that constitutes a passenger conveyor includes a frame body that is installed between an upper floor and a lower floor of a building structure, and a plurality of steps that circulate and move within the frame body. The steps are circulated and moved by a step chain provided in the frame body and the front and rear wheels. The front wheels and the rear wheels are guided by guide rails. Lubricating oil is supplied to the step chain. For this reason, there is also an escalator conventionally provided with a step pollution preventing device so that lubricating oil does not drip onto the step and cause the step to be fouled.

  Prior arts equipped with this type of step pollution preventing device are disclosed in Patent Documents 1 and 2. In Patent Literature 1, the oil drainage plate constituting the step pollution preventing device is disposed along the longitudinal direction of the guide rail, and the guide rail guide surface of the return side step rail disposed in the horizontal projection plane of the step. A gap is formed on the lower side and provided in a superposed state, and one edge in the vertical cross section is arranged to protrude closer to the center of the step than the edge of the guide surface of the corresponding guide rail, and the other edge is the one described above. The structure arrange | positioned below the edge part and arrange | positioned out of the horizontal projection surface of a step is disclosed.

  In Patent Document 2, in order to shorten the installation work time and reduce the material cost, an oil guide plate that constitutes a step antifouling device for dripping the lubricating oil dripping from the guide rail to the outside of the return step is provided. The structure which provided the guide rail of the side in the lower side only of the fixing part which fixes to a frame, and suppressed installation of an oil guide plate to the minimum is disclosed.

JP 2001-151451 A JP 2011-73837 A

  In the conventional passenger conveyors shown in Patent Documents 1 and 2, since it is arranged below the return side guide rail or only on the fixed part of the outward side guide rail, the return side from the outward side guide rail It is difficult to completely prevent the adhesion of lubricating oil directly dripping onto the step.

  Moreover, when considering newly installing a step pollution prevention apparatus with respect to the existing passenger conveyor, in the prior art disclosed by patent document 1, when installing a drain plate on the guide rail of a return path, passengers In the cross-sectional direction of the frame of the conveyor, the work is carried down to the lower side, so it is necessary to remove to some extent the steps on the return path side in the installation section. Further, in the prior art disclosed in Patent Document 2, after the oil guide plate is installed at the fixed portion of the guide rail, the guide rail placement fine adjustment work occurs. For these reasons, the conventional techniques disclosed in Patent Documents 1 and 2 have a problem in that when the step pollution prevention device is installed on an existing passenger conveyor, the work becomes complicated and the improvement of the installation work efficiency cannot be expected.

  The present invention has been made from the above-described actual situation in the prior art, and the object thereof is to prevent the lubricant dripping from the outward guide rail from adhering to the step and to prevent the existing passenger conveyor from being contaminated on the step. Is to provide a passenger conveyor that can be installed without using existing guide rails and guide rail fixing portions.

  In order to achieve the above object, a passenger conveyor according to the present invention includes a frame installed in a building structure, a plurality of steps connected endlessly by a step chain, and circulated through the frame, and the step chain A drive device that drives the step via a step, and a step pollution prevention device that prevents the lubricant from adhering to the step, and the frame has an inclined portion and is disposed on both the left and right sides of the step. The vertical members and the pair of left and right vertical members are connected to each other, and a plurality of horizontal beams arranged along the longitudinal direction of the frame body, and attached to each of the horizontal beams, on the forward path side of the steps In a passenger conveyor having an outward guide rail for guiding a step, and a return side guide rail that is attached to the lower side of the horizontal girder in the longitudinal section of the frame and guides a return step of the steps , The step antifouling device Is disposed in a gap formed between the cross beam, the return-side step, and a rear wheel attached to the return-side step, and is provided over the entire inclined portion. It is characterized by including a drain oil plate for dripping the lubricating oil dripping from the side guide rail to the outside of the return-side step.

  The passenger conveyor according to the present invention uses the gap between the cross beam of the frame, the step on the return side, and the rear wheel of the step on the return side, and the oil drain plate constituting the step fouling prevention device is inclined. Therefore, the lubricating oil dripping from the outward guide rail can be prevented from adhering to the steps in the entire inclined portion. A highly reliable and reliable passenger conveyor can be realized.

  Further, the present invention can be installed without using the existing guide rail and the guide rail fixing portion when installing the step pollution prevention device on the existing passenger conveyor. Accordingly, the present invention simplifies the installation work when installing the step pollution prevention device on the existing passenger conveyor, and can improve the efficiency of the installation work of the step pollution prevention device as compared with the conventional art.

It is a side view which shows the state before attachment of the step pollution prevention apparatus of the escalator which comprises 1st Embodiment of the passenger conveyor which concerns on this invention. It is an AA cross-section principal part enlarged view of FIG. It is a figure which shows the state which attached the step pollution prevention apparatus to the escalator shown to FIG. 1, 2, and is the principal part enlarged view drawn corresponding to FIG. It is a figure corresponding to B section of Drawing 1, and is a principal part expansion side view showing the state where a step pollution prevention device was attached. It is the D section enlarged view of FIG. It is the figure seen from the E direction of FIG. It is a principal part side view which shows the lowermost vicinity of the escalator in the state which attached the step pollution prevention apparatus. It is a figure which shows the principal part of the step pollution prevention apparatus with which the escalator which comprises 2nd Embodiment of the passenger conveyor which concerns on this invention is equipped, and is the side view drawn corresponding to FIG.

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

  The escalator constituting the first embodiment of the passenger conveyor according to the present invention is, for example, an existing escalator, and FIGS. 1 and 2 show a state before the step pollution preventing device is provided.

  As shown in FIG. 1, the escalator includes a frame 1 installed between an upper floor F1 and a lower floor F2 of a building structure, and an upper portion provided at an end of the frame 1 in the longitudinal direction. A platform 2 and a lower platform 3, a plurality of steps 5 that are connected endlessly in the frame 1 by a step chain 4 and circulates, a driving device 6 that drives the steps 5, and both left and right sides of the steps 5 And a balustrade 7 arranged on the frame 1.

  The frame 1 basically includes an upper horizontal portion 1A which is a horizontal portion on the upper floor F1, a lower horizontal portion 1B which is a horizontal portion on the lower floor F2, a top horizontal portion 1A and a lower horizontal portion 1B. And an inclined portion 1C that communicates with each other.

  The frame body 1 has an upper chord member 11, a lower chord member 12, and a vertical member 13 as shown in FIG. 2, and side frames 14 formed by these members are arranged on the left and right sides of the step 5 so as to be arranged on the left and right sides. The vertical members 13 arranged in the frame 1 are integrally connected, and a plurality of cross beams 15 are provided along the longitudinal direction of the frame 1.

  Each of the cross beams 15 is provided with an outward guide rail 17 via an outward guide rail bracket 16, and the vertical member 13 is provided with return guide rails 19a and 19b via return guide rail brackets 18a and 18b. Is attached.

  On each of these guide rails 17, 19a, 19b, a front wheel 20 and a rear wheel 21 which are rotatably attached to the step 5 are mounted so as to be able to travel. The front wheel 20 is attached to the end of a chain shaft 4A attached to the step chain 4, and is driven by the drive device 6 so that the step 5 circulates and moves in a predetermined direction via the chain shaft 4A.

  Here, the lubricating oil is supplied to the step chain 4 that drives the step 5 that moves along the outward guide rail 17 by an oil supply device (not shown). Excess lubricating oil overflowing from the step chain 4 drops on the outward guide rail 17 and flows downward along the inclination of the outward guide rail 17 in the longitudinal direction. Therefore, in the case where the later-described step antifouling prevention device is not installed, in the process in which excess lubricating oil flows downward, the lubricating oil flows from the bolt fixing portion or the like of the outward guide rail 17 to the back side of the outward guide rail 17. In this way, the oil is dropped by gravity as it is, or is pushed into the forward side guide rail 17 by the rear wheel 21 traveling on the forward side guide rail 17 and dropped as it is. Adheres. As a result, the step 5 is soiled by the lubricating oil.

  3 is a view showing a state in which the step antifouling device is attached to the escalator shown in FIGS. 1 and 2, an enlarged view of a main part drawn corresponding to FIG. 2, and FIG. 4 is a view corresponding to a portion B of FIG. FIG. 5 is an enlarged side view of a main part showing a state in which the step pollution preventing device is attached, FIG. 5 is an enlarged view of a D part in FIG. 4, and FIG. 6 is a view seen from the direction E in FIG. 3 and 4, only one side of both sides is shown, the other side (not shown) has the same configuration.

  The escalator according to the present embodiment is an existing escalator, but a step fouling device that is provided in addition to this escalator and prevents adhesion of lubricating oil to the step 5 is shown in FIGS. 15 and the step 5b on the return side and the rear wheel 21 between the return step 5b and the rear wheel 21 (gap portion F in FIG. 2) are provided across the entire inclined portion 1C. An oil draining plate is provided for dripping the lubricating oil dripping from the outward guide rail 17 to the outside of the return step 5b. As shown in FIG. 3, the forward path step 5 a is located above the cross beam 15.

  The oil drain plate described above includes, for example, a plurality of divided plates 22 each set to a length dimension corresponding to the interval between the adjacent lateral beams 15 and is arranged by overlapping the adjacent divided plates 22.

  As shown in FIG. 3, each of the dividing plates 22 has one side end in the longitudinal section located sufficiently inside the inner side of the forward path guide rail 17, and the other side end descends obliquely while the other side end is lowered obliquely. 17 is arranged in an inclined shape so as to be located outside of 17. As a result, the lubricating oil dropped from the inner end and the back surface of the outward guide rail 17 and the lubricating oil dropped from the horizontal beam 15 after being transmitted to the horizontal beam 15 are received, and the outside of the return-side step 5b. The lubricating oil can be allowed to flow along the inclined surface on the dividing plate 22 while being dripped onto the dividing plate 22.

  Further, in the present embodiment, the split plate 22 is held by the outward guide rail 17 and the fixing portion for fixing the outward guide rail 17 to the transverse beam 15, that is, the transverse beam 15 so as not to interfere with the outward guide rail bracket 16. A holding part is provided. As shown in FIGS. 5 and 6, in the vicinity of the holding portion of the divided plate held by the holding portion, the end portions of the divided plate 22 arranged adjacent to the divided plate 22 are overlapped. It is. For example, the holding portion described above is provided in the vicinity of the upper end portion in the longitudinal direction of the dividing plate 22 positioned on the lower side, and the lower end portion of the dividing plate 22 disposed on the upper side of the dividing plate 22 provided with the holding portion is In the vicinity of the holding portion of the divided plate 22 located on the side, the upper portion of the divided plate 22 is overlapped.

  In addition, about the holding | maintenance part of the division | segmentation board 22, since a load is not so much applied, what can hold | maintain the division | segmentation board 22 so that the division | segmentation board 22 does not fall and a positional shift does not arise. In this embodiment, for example, as shown in FIGS. 5 and 6, the holding portion includes an arm portion 30 having an L shape in side view, and a magnet 31 that attracts the upper portion of the arm portion 30 to the upper surface of the cross beam 15. It is configured to include. That is, the dividing plate 22 is attached to the upper surface of the cross beam 15 so as to be hung by the arm portion 30 through the attractive force of the magnet 31.

  Further, in the present embodiment, a bent portion 32 is formed at the lower end portion of the dividing plate 22 located on the upper side, and the bent portion 32 is divided on the lower side held by the holding portion including the arm portion 30 and the magnet 31. The plate 32 is in contact with the vicinity of the holding portion. That is, in the present embodiment, the split plate 22 positioned on the upper side and the split plate 22 positioned on the lower side are overlapped with each other via the space portion 33 by the bent portion 32. Thereby, the backflow of the lubricating oil by capillary action can be prevented.

  In the present embodiment, as shown in FIGS. 5 and 6, the side located on the inner side, which is the step 5 side, of both side portions of the bent portion 32 formed at the upper end portion of the dividing plate 22 located on the lower side. The rising portion 34 is provided on the divided plate located on the lower side so as to be opposed to the portion to prevent the above-described dripping of the lubricating oil on the inner side. Thereby, dripping of the lubricating oil to the step 5b on the return path side can also be prevented at the joint portion of the dividing plate 22.

  The lowermost dividing plate 23 shown in FIG. 7 includes a forward-side front wheel guide curve rail 25, a forward-side rear wheel guide curve rail 26, and the forward-side guide rail 17 positioned above the curved rails 25 and 26. The holding part including the arm part 30 and the magnet 31 is provided on the lower end side in the longitudinal direction. Further, a rising portion 35 is provided at the lowermost end of the dividing plate 23 to receive the lubricating oil flowing down from above and to drop it outside the step 5b on the return path side. On the upper end side of the lowermost divided plate 23, the structure is the same as that of the divided plate 22 described above.

  When installing the dividing plates 22 and 23 constituting the oil drainage plate of the step fouling prevention device provided in the present embodiment on the escalator shown in FIGS. 1 and 2, the lowermost dividing plate 23 is first placed near the lowermost portion. It is fixed between the horizontal beams 15 located at the position, and the subsequent steps are to sequentially install the dividing plate 22 immediately above the longitudinal direction. For example, when installing the dividing plates 22, the dividing plates 22 are inserted obliquely from between the cross beams 15 that are one upper side of the horizontal beams 15 to be arranged, so that the steps 5 b on the return side are not removed. Can do. After being overlapped with the one lower dividing plate 22, 23, the arm part 30 provided on the one lower dividing plate 22, 23 is attracted to the cross beam 15 by the magnet 31. Thereby, the upper end part of the division board 22 located in the one lower side, and the lower end part of the division board 22 located in the immediately upper side are hold | maintained at the cross beam 15. FIG. Since the dividing plates 22 and 23 can be installed in this way, good workability can be ensured.

  Only the lowermost dividing plate 23 cannot be inserted to the lower side in the longitudinal section between the cross beams 15 unless about two steps 5b on the return path side are structurally removed. With respect to the above, if at least about four steps 5a on the outward path side are removed, the dividing plates 22 and 23 can be installed. Therefore, the restoration work time after the installation of the dividing plates 22 and 23 can be shortened.

  According to the escalator according to the present embodiment configured as described above, the clearance F between the cross beam 15 of the frame 1, the return-side step 5 b, and the rear wheel 21 of the return-side step 5 b is used. Since the dividing plates 22 and 23 constituting the oil drain plate of the step pollution preventing device are provided over the entire area of the inclined portion 1C, the lubricating oil dripping from the outward guide rail 17 is applied to the step 5 in the entire area of the inclined portion 1C. It can prevent adhesion. Thereby, this embodiment can ensure the outstanding lubricating oil pollution prevention function, and can implement | achieve a reliable passenger conveyor.

  Moreover, this embodiment does not use the existing guide rails 17, 19 a, 19 b and the guide rail brackets 16, 18 a, 18 b constituting the guide rail fixing portion when installing the step pollution preventing device on the existing escalator. Can be installed. Thereby, this embodiment becomes easy [installation work in the case of installing a step pollution prevention apparatus in the existing escalator], and can improve the efficiency of the said installation work.

  FIG. 8 is a side view illustrating the main part of the step pollution preventing device provided in the escalator constituting the second embodiment of the passenger conveyor according to the present invention and corresponding to FIG.

  In the second embodiment, the dividing plate 22 includes a holding portion that holds the dividing plate 22 on the cross beam 15 so as not to interfere with the outward guiding rail 17 and the outward guiding rail bracket 16 that fixes the outward guiding rail 17. The arm portion 30 provided on the arm portion 30 and the holding portion 36 provided on the arm portion 30 and holding the cross beam 15 in cooperation with the arm portion 30 are configured. Other configurations are the same as those of the first embodiment described above. The second embodiment configured as described above can also obtain the same operational effects as the first embodiment described above.

  In the first and second embodiments described above, an existing escalator is used as the passenger conveyor. However, the present invention can be similarly applied to a new escalator. When applied to a new escalator, it is possible to secure better workability compared to the case where a step pollution prevention device is provided in addition to an existing escalator. It can also be set as the structure fixed to 15.

  Further, in the first and second embodiments described above, a holding portion for holding the dividing plate 22 on the cross beam 15 is provided near the upper end portion in the longitudinal direction of the dividing plate 22 positioned on the lower side, and this holding portion is provided. The lower end portion of the dividing plate 22 arranged on the upper side of the dividing plate 22 is arranged so as to overlap the upper end portion of the dividing plate 22 in the vicinity of the holding portion of the dividing plate 22 located on the lower side. The invention may be configured in the opposite manner. That is, a holding portion for holding the dividing plate 22 on the cross beam 15 is provided near the lower end portion in the longitudinal direction of the dividing plate 22 arranged on the upper side, and the dividing plate positioned below the dividing plate 22 provided with this holding portion. It is also possible to adopt a configuration in which the upper end portion of 22 is arranged so as to overlap the lower end portion of the divided plate 22 in the vicinity of the holding portion of the divided plate 22 located on the upper side.

DESCRIPTION OF SYMBOLS 1 Frame 4 Step chain 5 Step 5b Return side step 15 Horizontal girder 16 Outward side guide rail bracket 17 Outward side guide rail 21 Rear wheel 22 Dividing plate (oil drain plate)
23 Dividing plate (oil drain plate)
25 Curved rail for forward road side front wheel guide 26 Curved rail for forward road side rear wheel guide 30 Arm (holding part)
31 Magnet (holding part)
32 Bending part 33 Space part 34 Rising part 35 Rising part 36 Clamping part (holding part)
1C Inclined part 1F Gap part

Claims (7)

A frame body installed in a building structure, a plurality of steps connected endlessly by a step chain and circulatingly moving within the frame body, a drive device for driving the step via the step chain, and a connection to the step With a step antifouling device that prevents adhesion of lubricating oil,
The frame body has an inclined portion, a vertical member disposed on both the left and right sides of the step, and a pair of left and right vertical members connected to each other, and a plurality of cross beams disposed along the longitudinal direction of the frame body. And a forward guide rail that is attached to each of the cross beams and guides a forward step of the steps, and is attached to the lower side of the cross in the longitudinal section of the frame, In the passenger conveyor having a return side guide rail that guides the return side steps,
The step pollution preventing device is disposed in a gap formed between the cross beam, the return-side step, and a rear wheel attached to the return-side step, and covers the entire area of the inclined portion. A passenger conveyor, comprising: an oil draining plate that is provided and drops lubricating oil dripping from the outward guide rail to the outside of the return step. In the passenger conveyor according to claim 1,
The oil drain plate is composed of a plurality of divided plates each set to a length corresponding to the interval between the cross beams adjacent to each other,
A passenger conveyor characterized in that adjacent divided plates are arranged to overlap each other. In the passenger conveyor according to claim 2,
In order not to interfere with the forward path side guide rail and the fixing part that fixes and holds the forward path side guide rail, a holding portion that holds one end side in the longitudinal direction of the dividing plate to the cross beam is provided,
A passenger conveyor characterized in that, in a portion of the dividing plate located in the vicinity of the holding portion, end portions in the longitudinal direction of the dividing plate arranged adjacent to the dividing plate are overlapped. In the passenger conveyor according to claim 3,
Provided with a bent portion bent downward at the end portion of the divided plate,
The passenger conveyor according to claim 1, wherein the bent portion is brought into contact with a portion on the one end side in the longitudinal direction of the divided plate held by the holding portion. In the passenger conveyor according to claim 4,
The divided plate held by the holding portion so as to be opposed to a side end portion located on the inner side, which is the step side, of both side ends of the bent portion formed at the end portion of the divided plate. Further, a passenger conveyor characterized in that a rising portion is provided to prevent dripping of the lubricating oil to the inner side. In the passenger conveyor of any one of Claims 3-5,
The said holding | maintenance part contains the arm part provided in the said division board, and the magnet which makes this arm part adsorb | suck to the said cross beam, The passenger conveyor characterized by the above-mentioned. In the passenger conveyor of any one of Claims 3-5,
The said holding | maintenance part is a passenger conveyor characterized by including the arm part provided in the said division board, and the clamping part which is provided in this arm part and clamps the said cross beam in cooperation with the said arm part.