JP2006290548A - Anti-stain device for passenger conveyor steps - Google Patents

Abstract

The present invention provides an antifouling device for passenger conveyors that can be made into a small shape.
Lubricating oil of the step chain 3 dropped onto the first guide rail 6 and flowing down to the second guide rail 7 via the support bracket 8 is within the horizontal projection plane of the second guide rail 7. A frame that consists of a back plate 17 and a front plate 22, and a frame that consists of a back plate 17 and a front plate 22. An upper oil receiving portion 25, an intermediate oil receiving portion 26, and a lower oil receiving portion 20 that extend from the upper side and the lower side are provided, and the oil receiving portions 25, 26, and 20 are positioned at the lowermost positions. The end portion of the lower oil receiving portion 20 is configured to be disposed outside the horizontal projection surface of the step 5.
[Selection] Figure 4

Description

  The present invention relates to a step contamination preventing device for a passenger conveyor that is provided in a passenger conveyor such as an escalator and prevents contamination of the step due to a supercharged amount of lubricating oil supplied to a chain.

There exists a thing shown by patent document 1 as this type of prior art. In this prior art, the longitudinal direction is arranged along the length of the second guide rail, and a gap is formed below the guide surface of the second guide rail arranged in the horizontal projection surface of the step. The one edge in the vertical section is arranged to protrude closer to the center of the step than the edge of the corresponding guide surface of the second guide rail, and the other edge is arranged below the one edge. In addition, an oil drain plate disposed outside the horizontal projection surface of the step is provided.
JP 2001-151451 A

  In the above-described prior art, a large oil drain plate having a length equivalent to that of the second guide rail is required in order to dispose the oil drain plate along the length of the second guide rail. For this reason, there is a problem that the equipment cost becomes high and the installation work takes time.

  The present invention has been made from the actual situation in the above-described prior art, and an object of the present invention is to provide a step pollution prevention device for a passenger conveyor that can have a small shape.

  In order to achieve the above object, the present invention provides a plurality of steps connected endlessly, a step chain that connects these steps to each other, a gear that the step chain engages and rotationally drives, a prime mover, and a speed reducer A driving machine composed of a machine, a drive chain for transmitting the power of the driving machine to the gear, a first guide rail for guiding the travel of the steps, and a lower part than the first guide rail, A passenger conveyor having a second guide rail fixed to the first guide rail by a plurality of support members formed in a columnar shape having a rectangular cross section, dropped onto the first guide rail, and the support A step of a passenger conveyor that prevents the lubricating oil of the step chain flowing down to the second guide rail via a member from dropping on the step portion located in the horizontal projection plane of the second guide rail. In the antifouling device, a frame that is tightly fixed to the four surfaces of the support member, and an upper side and a lower side of the frame, each of which is located at the lowermost part is outside the horizontal projection plane of the step. And an oil receiving portion to be arranged.

  Further, the present invention is the above invention, wherein the frame body is composed of divided members coupled so as to sandwich the support member, and a sealing material is provided on a contact surface of the divided member with the support member. It is a feature.

  Further, in the present invention according to the present invention, the oil receiving portion is formed in a direction orthogonal to the upper side oil receiving portion extending from the upper side of the step side surface of the frame body and the step side surface of the frame body. It includes a middle oil receiving portion extending from the lower side of the side surface and a lower oil receiving portion extending from the lower side of the surface located on the opposite side of the step side surface of the frame.

  In order to achieve the above object, the present invention provides a plurality of steps connected endlessly, a step chain that connects these steps to each other, a gear that the step chain engages and rotationally drives, a prime mover, A drive unit comprising a speed reducer, a drive chain for transmitting the power of the drive unit to the gears, a first guide rail for guiding the travel of the steps, and a lower side than the first guide rail, A passenger conveyor provided with a second guide rail fixed to the first guide rail by a plurality of support members, dropped onto the first guide rail, and the second via the support member In the step pollution prevention device for a passenger conveyor, the lubricating oil of the step chain flowing down to the guide rail is prevented from dripping onto the step portion located in the horizontal projection plane of the second guide rail. Is contacted with the lower surface of the second guide rail, and one side of the bottom surface is formed of a cone having a length substantially equal to the width of the second guide rail, and the apex of the cone is set at the step. It is characterized by being arranged outside the horizontal projection plane.

  Moreover, the present invention is characterized in that, in the above-mentioned invention, a magnet is provided on the bottom surface and is attracted to the lower surface of the second guide rail by the magnetic force of the magnet.

  In the present invention, since the lowermost portion of the oil receiving portion is located outside the horizontal projection surface of the step, it is possible to reliably prevent oil from dripping from the guide rail to the step and to be mounted on the support member. It can be a shape. As a result, the equipment cost can be reduced compared to the conventional case, and the installation work time can be shortened.

  Further, according to the present invention, since the apex of the cone is arranged outside the horizontal projection plane of the step, oil can be reliably prevented from dripping from the guide rail to the step, and the shape of the cone can be changed to that of the second guide rail. It can be made into a small shape such that one side of the bottom surface in contact with the lower surface has a length substantially equal to the width dimension of the second guide rail. As a result, the equipment cost can be reduced compared to the conventional case, and the installation work time can be shortened.

  Hereinafter, the best mode for carrying out the passenger fouling prevention device for passenger conveyors according to the present invention will be described with reference to the drawings.

  FIG. 10 is a side view showing a schematic configuration of an escalator cited as an example of a passenger conveyor to which the present invention is applied. First, a main configuration of a general escalator will be described based on FIG.

  As shown in FIG. 10, the escalator is disposed near the upper end of the frame 1 that forms the framework of the structure, and has a drive gear 2 having three gears on the same shaft, and is wound around the gear of the drive gear 2. The step chain 3 is formed in an endless shape, and is disposed near the lower end in the frame 1. The step chain 3 is wound around the same gear as the drive gear 2. And a driven gear 4 that is driven to rotate by being transmitted with the power of the drive gear 2 via the step chain 3. A plurality of steps 5 that are connected to the step chain 3 and are endless, travel in the frame 1, a first guide rail 6 that guides the travel of these steps 5, and guides the travel of the steps 5. And a second guide rail 7 disposed below the first guide rail, and a plurality of substantially rectangular cross-section columns fixed to the first guide rail 6 and supporting the second guide rail 7. Reducer having a support member to be formed, that is, a support bracket 8, a drive chain 9 wound around one of the gears of the drive gear 2, and formed endlessly, and a gear around which the drive chain 9 is wound 10 and a prime mover 11 serving as power for the speed reducer 10. The prime mover 11 and the speed reducer 10 constitute a drive machine.

  In the escalator configured as described above, the power of the prime mover 11 is transmitted to the drive gear 2 via the speed reducer 10 and the drive chain 9, and the drive gear 2 is driven to rotate, whereby the step chain 3 is driven. A plurality of steps 5 connected to the step chain 3 travel around the gear 2 and the driven gear 4. By switching the rotation direction of the drive gear 2 between left rotation and right rotation, a passenger or the like riding on the step 5 can be transported from the upper part to the lower part or from the lower part to the upper part.

  11 is an enlarged view of a portion A in FIG. 10, and FIG. 12 is a front view as seen from the BB direction in FIG. In FIGS. 11 and 12, the step 5 includes a step plate 12 that serves as a scaffold for passengers, a side plate 13 that shields a step portion between adjacent steps 5, and a front wheel 14 that is disposed outside the step chain 3. The rear wheel 15 is arranged on the inner side of the step chain 3. The step 5 travels while being guided by the first guide rail 6 by the front wheels 14 and the rear wheels 15 traveling on the first guide rail 6, transporting passengers and the like on the tread 12, and driving gear 2 or driven The second guide rail 7 and the third guide rail are reversed by a rear wheel 15 that reverses at the gear 4 and travels on the second guide rail 7 and a front wheel 14 that travels on the third guide rail (not shown). Traveling in the direction opposite to the direction of transporting passengers. In this way, the step 5 circulates.

  Here, in FIG. 12, since the step chain 3 is normally made of a metal roller chain that requires application of lubricating oil, the lubricating oil is periodically supplied. Since the supplied lubricating oil has a very small amount of decrease due to evaporation with respect to the supplied amount, it becomes saturated when reaching a certain period after the start of regular supply, and drops as surplus oil 16 downward. . The surplus oil 16 dropped from the step chain 3 first drops on the upper surface of the first guide rail 6 and is accumulated on the upper surface of the first guide rail 6. Normally, the escalator is inclined at 30 degrees, so the accumulated excess oil 16 flows downward along the upper surface of the first guide rail 6, but the guide rail has a length of 2 to 3 m. Therefore, the surplus oil 16 flows from the seam to the back surface of the first guide rail 6, further travels along the support bracket 8 from the back surface, flows to the second guide rail 7, and the first guide rail 6 Similarly, it flows from the joint portion of the second guide rail 7 to the back surface of the second guide rail 7, and finally falls to the side surface 13 of the step 5.

  Next, an embodiment of a passenger conveyor step pollution prevention device according to the present invention will be described with reference to FIGS.

  FIG. 1 is a main part front view showing a state in which an embodiment of a passenger conveyor step pollution prevention device according to the present invention is attached to an escalator, and FIG. 2 is a main part showing a state in which one embodiment of the present invention is attached to the escalator. FIG. 3 is a side view, FIG. 3 is an enlarged view of a portion C in FIG. 2, and FIG. 4 is a view of what is shown in FIG. FIG. 5 is an exploded perspective view showing the configuration of one embodiment of the present invention.

  As shown in FIG. 5, the oil draining plate 28 constituting one embodiment of the present invention is composed of a frame formed by a back plate 17 and a front plate 22 which are divided members. A back plate 17 comprising a substantially L-shaped thin plate as a base includes a claw portion 18 extending from a side edge of the short surface, and a short side of the long surface forming a surface located on the opposite side of the step side surface. A hole portion 19 disposed on the opposite side, a lower oil receiving portion 20 extending from the lower side of the long surface and inclined to the outside, and an adhesive portion 21 disposed on the inner surface It has. Further, the front plate 22 that is formed by using a substantially L-shaped thin plate as a base forms a step side surface with a claw portion 23 extending from a side edge of a short surface that is a side surface formed in a direction orthogonal to the step side surface. From the hole 24 disposed at the opposite end to the short side of the long surface, the upper oil receiving portion 25 extending from the upper side of the long surface and disposed outward, and from the lower side of the short surface A middle oil receiving portion 26 that is extended and disposed outward and an adhesive portion 27 that is disposed on the inner surface are provided.

  As shown in FIGS. 3 and 4, the front plate 22 is disposed on the second guide rail 7 side with respect to the support bracket 8, and the back plate 17 is disposed on the opposite side to the second guide rail 7. Are inserted into the holes 19 of the back plate 17, and at the same time, the claw portions 18 of the back plate 17 are inserted into the holes 24 of the front plate 22, and the support bracket 8 is sandwiched between the bonding portions. In a state in which 21 and 27 are pressed so as to be in close contact with the four surfaces constituting the support bracket 8, the respective claw portions 18 and 23 are bent and fixed. In this way, an embodiment of the present invention, that is, an oil drain plate 28 that forms a frame and has an oil receiving portion is attached to the support bracket 8.

  Here, the adhesive portions 21 and 27 are made of a sealing material having a sealing property that does not allow oil to permeate and a certain degree of elasticity. Moreover, it is desirable that the contact surfaces of the bonding portions 21 and 27 with the support bracket 8 have adhesiveness. However, the oil drain plate 28 can be fixed to the support bracket by the elasticity of the adhesive portions 21 and 27 even if there is no adhesiveness.

  As shown in FIG. 2, the normal support bracket 8 is disposed in the vicinity of the joint of the second guide rail 7, that is, at the end of the short guide of the second guide rail 7 formed by connecting the short guide. The In addition, since the two support brackets 8 are erected side by side at the joint portion, the oil drain plate 28 constituting one embodiment of the present invention is located below the upper side. It is desirable to install so that it is located in

  As shown in FIG. 1, surplus oil 16 that drops from the step chain 3 and flows down through the first guide rail 6 and along the support bracket 8 is bonded to the adhesive portions 21 and 27 of the oil drain plate 28 and the upper oil. It is dammed to the receiving part 25, the middle oil receiving part 26, and the lower oil receiving part 20, and finally drops from the lowermost part of the lower oil receiving part 20. The surplus oil 16 dripping from the lower oil receiving portion 20 does not fall on the step 5 but falls on the bottom surface of the frame 1.

  In this way, the excess oil dripping from the step chain 3 is dropped outside the horizontal projection surface of the step 5 by the oil drain plate 28 constituting one embodiment of the present invention, so that the step 5 is soiled by the excess oil 16. Can be surely prevented.

  According to the embodiment of the present invention, the oil drain plate 28 having a small shape enough to be attached to the support bracket 8 can be obtained. Thereby, equipment cost can be made cheap and attachment work time can be shortened. In addition, since the oil drain plate 28 is divided into the back plate 17 and the front plate 22, it can be easily attached to the existing passenger conveyor. Further, as described above, dripping of oil from the guide rails 6 and 7 to the step 5 can be reliably prevented via the upper oil receiving portion 25, the middle oil receiving portion 26, and the lower oil receiving portion 20 of the oil drain plate 28. .

  6 is a main part front view showing a state in which another embodiment of the present invention is attached to an escalator, FIG. 7 is a main part side view showing a state in which another embodiment of the present invention is attached to an escalator, and FIG. FIG. 9 is an enlarged view of a portion D of FIG. 7, and FIG. 9 is a perspective view showing a configuration of another embodiment of the present invention.

  As shown in FIG. 9, the oil draining body 29 constituting another embodiment of the present invention is formed of a pyramid, for example, a quadrangular pyramid, and one side of its bottom surface is in a direction orthogonal to the length of the second guide rail 7. The bonding surface 30 is formed to have substantially the same width as the width, a magnet 31 embedded in the bonding surface 30, and a vertex 32 where four triangles intersect. Here, the magnet 31 is disposed on the same surface as the bonding surface 30.

  The adhesive surface 30 is a quadrangle here, but may be a triangle. That is, although the oil cut body 29 is formed in a quadrangular pyramid, it may be formed in a triangular pyramid. In this case as well, one side of the bottom surface is preferably formed to have substantially the same width as that of the direction perpendicular to the length of the two guide rails 7.

  As shown in FIG. 8, an oil draining body 29 made of a quadrangular pyramid constituting another embodiment of the present invention is bonded and fixed to the back surface of the second guide rail 7. At this time, the apex 32 of the oil draining body 29 is arranged outside the horizontal projection surface of the step 5. Further, as shown in FIG. 7, the mounting position of the oil draining body 29 is such that one side of the joint surface 30 is substantially the same as the width of the second guide rail 7 on the joint portion of the second guide rail 7. It contacts and is on the lower side from the joint.

  As shown in FIG. 6, surplus oil 16 that drops from the step chain 3 and flows down to the second guide rail 7 through the first guide rail 6 and the support bracket 8 is connected to the joint portion of the second guide rail 7. It flows to the back side, accumulates at the vertex 32 through the corner of the oil draining body 29, and finally drops from the vertex 32. In addition, although the oil draining body 29 is structured to be adsorbed and fixed by the magnet 3, it may be configured to be fixed by an adhesive or welding.

  As described above, the oil draining body 29 according to another embodiment of the present invention can also drop the surplus oil 16 dripping from the step chain 3 from the top 32 to the outside of the horizontal projection surface of the step 5, thereby surplus. It is possible to prevent the step 5 from being soiled by the oil 16.

  In this other embodiment of the present invention, the shape of the oil cutting body 29 forming the quadrangular pyramid is substantially the same as the width of the second guide rail 7 with one side of the bottom surface contacting the lower surface of the second guide rail 7. Therefore, the equipment cost can be reduced, and the installation work time can be shortened. Further, since the magnet 31 is provided on the bottom surface of the oil draining body 29, the oil draining body 29 can be easily attached to the second guide rail 7.

BRIEF DESCRIPTION OF THE DRAWINGS It is a principal part front view which shows the state which attached one Embodiment of the step pollution prevention apparatus of the passenger conveyor which concerns on this invention to the escalator. It is a principal part side view which shows the state which attached one Embodiment of this invention to the escalator. It is the figure which expanded and showed the C section of FIG. It is the figure which looked at what is shown in FIG. 3 from another angle. It is a disassembled perspective view which shows the structure of one Embodiment of this invention. It is a principal part front view which shows the state which attached other embodiment of this invention to the escalator. It is a principal part side view which shows the state which attached other embodiment of this invention to the escalator. It is the figure which expanded and showed the D section of FIG. It is a perspective view which shows the structure of other embodiment of this invention. It is a side view showing a schematic structure of an escalator given as an example of a passenger conveyor to which the present invention is applied. It is the figure which expanded and showed the A section of FIG. It is the front view seen from the BB direction of FIG.

Explanation of symbols

1 Frame 2 Drive Gear 3 Step Chain 4 Driven Gear 5 Step 6 First Guide Rail 7 Second Guide Rail 8 Support Bracket (Support Member)
DESCRIPTION OF SYMBOLS 9 Drive chain 10 Reduction gear 11 Motor 12 Tread plate 13 Side plate 14 Front wheel 15 Rear wheel 16 Excess oil 17 Back plate 18 Claw part 19 Hole part 20 Lower oil receiving part 21 Adhesive part 22 Front plate 23 Claw part 24 Hole part 25 Upper oil receiver Part 26 Interrupted oil receiving part 28 Oil drain plate (first embodiment)
29 Oil separator (second embodiment)
30 Bonding surface 31 Magnet 32 Vertex

Claims (5)

A plurality of steps connected endlessly, a step chain that connects these steps to each other, a gear that the step chain engages and rotates, a drive unit that includes a prime mover and a speed reducer, and the power of the drive unit A drive chain for transmitting the gear to the gear, a first guide rail for guiding the travel of the step, and a plurality of support members disposed below the first guide rail and formed in a columnar shape having a substantially rectangular cross section A passenger conveyor with a second guide rail fixed to the first guide rail by
The step chain lubricating oil dropped onto the first guide rail and flowing down to the second guide rail via the support member is located within the horizontal projection plane of the second guide rail. In the passenger fouling prevention device for passenger conveyor that prevents dripping on the part,
A frame that is tightly fixed to the four surfaces of the support member, and an oil receiver that extends from each of the upper side and the lower side of the frame, and the lowermost portion is disposed outside the horizontal projection surface of the step. And a step contamination preventing device for a passenger conveyor. In the invention of claim 1,
A step contamination preventing device for a passenger conveyor, wherein the frame body includes divided members coupled so as to sandwich the support member, and has a sealing material on a contact surface of the divided member with the support member. . In the invention of claim 1,
The oil receiving portion extends from the upper side of the step side surface of the frame, and the middle stage oil extends from the lower side of the side surface formed in a direction orthogonal to the step side surface of the frame. A step contamination prevention device for a passenger conveyor, comprising: a receiving portion; and a lower oil receiving portion extending from a lower side of a surface located on the opposite side of the step side surface of the frame. A plurality of steps connected endlessly, a step chain that connects these steps to each other, a gear that the step chain engages and rotates, a drive unit that includes a prime mover and a speed reducer, and the power of the drive unit A drive chain for transmitting the gear to the gear, a first guide rail for guiding the travel of the step, and a lower part than the first guide rail, and fixed to the first guide rail by a plurality of support members A passenger conveyor with a second guide rail,
The step chain lubricating oil dropped onto the first guide rail and flowing down to the second guide rail via the support member is located within the horizontal projection plane of the second guide rail. In the passenger fouling prevention device for passenger conveyor that prevents dripping on the part,
The bottom surface is in contact with the lower surface of the second guide rail, and one side of the bottom surface is formed of a cone having a length substantially equal to the width dimension of the second guide rail. A step for preventing contamination of a step of a passenger conveyor, wherein the step is disposed outside a horizontal projection surface of the step. In the invention of claim 4,
A step contamination preventing device for a passenger conveyor, wherein a magnet is provided on the bottom surface, and the magnet is attracted to the lower surface of the second guide rail.

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