EP1333001B1 - Fahrtreppe - Google Patents

Fahrtreppe Download PDF

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Publication number
EP1333001B1
EP1333001B1 EP00956867A EP00956867A EP1333001B1 EP 1333001 B1 EP1333001 B1 EP 1333001B1 EP 00956867 A EP00956867 A EP 00956867A EP 00956867 A EP00956867 A EP 00956867A EP 1333001 B1 EP1333001 B1 EP 1333001B1
Authority
EP
European Patent Office
Prior art keywords
chain
steps
escalator
sprockets
teeth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00956867A
Other languages
English (en)
French (fr)
Other versions
EP1333001A4 (de
EP1333001B8 (de
EP1333001A1 (de
Inventor
Hirofumi Mito Building System Div. UTSUNOMIYA
Chuichi Hitachi Ltd SAITOH
Takaaki Hitachi Mito Engineering Co. Ltd GUNCHI
Kazuhira Mito Building System Division OJIMA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Building Systems Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Building Systems Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Building Systems Co Ltd filed Critical Hitachi Ltd
Publication of EP1333001A1 publication Critical patent/EP1333001A1/de
Publication of EP1333001A4 publication Critical patent/EP1333001A4/de
Application granted granted Critical
Publication of EP1333001B1 publication Critical patent/EP1333001B1/de
Publication of EP1333001B8 publication Critical patent/EP1333001B8/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/024—Chains therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/026—Driving gear with a drive or carrying sprocket wheel located at end portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/14—Guiding means for carrying surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
    • B66B31/006—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for conveying hand carts, e.g. shopping carts

Definitions

  • the present invention relates to improvement of an escalator apparatus and provides an escalator apparatus that the thickness from the floor of the getting on and off platform of the escalator to the bottom of the escalator body is made thinner.
  • the basic constitution of an escalator apparatus is that many steps are connected to and moved by the chain via the front wheel shafts of the steps and by doing this, passengers are transferred.
  • the thickness from the floor of the getting on and off platform of the escalator to the bottom of the escalator body is decided by the rotation diameter of the steps at both ends of the escalator.
  • connection portions of the front wheel shafts of the stops and chain are shifted from the center line of the moving direction of the chain and the breaking strength of the chain is improved.
  • US 5 184 710 A discloses an escalator apparatus with the features of the preamble of present claim 1.
  • An object of the present invention is to provide an escalator apparatus that the thickness is made smaller.
  • the chain connecting many steps is wound over the drive sprocket and follower sprocket.
  • the chain is composed of many chain links and the chain links are connected by link pins.
  • connection of the steps and chain has a constitution that the front wheel shafts of the steps are connected to the chain and generally, the number of chain pitches (chain links) between the front wheel shafts of the neighboring steps is an even number.
  • the reason is that the chain is structured so that the chain links having different structures are alternately connected in the order of outside, inside, outside (see Fig. 4 ) and the front wheel shafts are to be connected to the chain links having the same structure.
  • the number of chain pitches between the front wheel shafts is considered to be an even pitch such as 4, 6, 8, 10, 12, and so on.
  • the number of chain pitches between the front wheel shafts is 6 or 8.
  • the present invention is defined by the apparatus of claim 1.
  • the subclaims relate to preferred embodiments.
  • the number of chain pitches between the front wheel shafts is set at 6.
  • connection portions between the front wheel shafts of the steps and the chain on the same track as the moving track of the chain, so that in a conventional drive sprocket, the teeth of the sprocket meeting the connection portions require special teeth (hereafter called special teeth) having concavities in them so as to prevent interference between the connection portions and the front wheel shafts.
  • special teeth To mate the chain links connected to the front wheel shafts with the special teeth in correspondence, the special teeth must be provided at a rate of one tooth per 6 teeth or one tool per 8 teeth according to the number of chain pitches between the front wheel shafts.
  • the number of teeth of the drive sprocket is decided by a multiple of the number of chain pitches between the front wheel shafts and as mentioned above, in the case of 6 pitches, the number of teeth is 12, 18, 24, or 30 and in the case of 8 pitches, the number of teeth is 16, 24, 32, or 40.
  • the diameter of the drive sprocket is large and although it is smaller than the diameter of the drive sprocket of a conventional escalator apparatus, the thickness of the escalator is still large.
  • the number of teeth of the drive sprocket is decided by a multiple of the number of chain pitches among the front wheel shafts, so that the size of the drive sprocket cannot be selected freely. Therefore, to prevent interference from being caused between the neighboring steps at the turning portion, it is necessary to prepare a large drive sprocket having 24 teeth.
  • the same may be said with a combination of a follower sprocket and a chain.
  • an escalator apparatus moving with an endless chain connected with many steps is structured so that in the section where the chain is mated with the sprocket, the moving track of the connection portions of the steps and chain is positioned outside the moving track of the outer periphery of the teeth of the sprocket.
  • An escalator apparatus 1 moves many steps 2 endlessly connected and transfers passengers between an upper floor 31 and a lower floor 32.
  • the escalator 1 has a hand rail 4 moving in synchronization with the steps 2 and a parapet 10 supporting the hand rail 4.
  • the steps 2, hand rail 4, and parapet 10 are supported by a main frame 5 and both ends of the main frame 5 are fixed to the upper floor 31 and lower floor 32 of the building.
  • the escalator apparatus 1 has a flat portion of upper floor 11 and a flat portion of lower floor 12 where passengers get on and off and an inclined portion 13 connecting both flat portions and transferring passengers.
  • a driving machine 61 is installed and drives a drive sprocket 62.
  • the driving machine 61 has a motor 611, a sprocket 612, an output shaft 613 of the motor 611, a gear (not shown in the drawing) attached to the output shaft 613, a shaft 614 of the sprocket 612 installed in parallel with the output shaft 613 of the motor 611, and a gear (not shown in the drawing) attached to this shaft and the gear attached to the output shaft 613 and the gear attached to the shaft 614 mate with each other and constitute a deceleration transfer mechanism.
  • a follower sprocket 71 is installed and between the drive sprocket 62 and the follower sprocket 71, an endless chain 8 is wound and rotates so as to change the direction at both ends of the escalator. To the chain 8, many steps 2 are connected.
  • steps 2 as shown in Fig. 5 , have a step plate 21, a riser 22, a front wheel 23, and a rear wheel 24 respectively.
  • the length of the step plate 21 of each step 2 in the moving direction is defined as a length Ls of the step plate 21, the dimension from the step surface of the rear wheel 24 to the top of the riser 22 as a maximum thickness hs of the steps 2, and the height from the step plate 21 to the rear wheel 24 as a height hh of the steps 2.
  • the front wheel 23 of each step 2 is connected to the chain 8 with its shaft and as the chain moves, the front wheel 23 also moves.
  • Fig. 2 is a cross sectional view of the inclined portion 13 shown in Fig. 1 and (a) and (b) show different embodiments.
  • Fig. 3 is a cross sectional view of the flat portion of upper floor 11 shown in Fig. 1 and (a) and (b) show different embodiments.
  • Fig. 4 is a drawing of the flat portion of upper floor along the line IV-IV shown in Fig. 3 which is viewed from above.
  • each step 2 has a pair of front wheels 23 which are shaft-supported by front wheel shafts 231 protruded on both sides in the width direction so as to freely rotate and a pair of rear wheels 24 which are shaft-supported by rear wheel shafts 241 at narrower intervals than the front wheels 23 so as to freely rotate.
  • the front wheels 23 are positioned outside (on both left and right sides shown in Figs. 2 and 3 ) the rear wheels 24 and in the forward path (upper side) of the steps 2, the front wheels 23 are arranged above the rear wheels 24.
  • the front wheel shafts 231 are connected to the chain 8 and move the steps 2 in correspondence with movement of the chain 8.
  • the front wheels 23 are arranged outside the rear wheels 24 and roll and move on a front wheel guide rail 91.
  • the rear wheels 24 roll and move on a rear wheel guide rail 92 arrange inside the chain 8.
  • a pair of parapets 10 are installed along both sides in the moving direction of the steps 2.
  • the parapets 10, as shown in Fig. 2 are respectively composed of a parapet panel 101, a railing frame 102 installed on the periphery of the parapet panel 101, an inner deck cover 103 and an outer deck cover 104 covering the base of the parapet panel 101, and a skirt guard 105 installed under the inner deck cover 103.
  • the periphery of each parapet 10, that is, the railing frame 102 guides the hand rail 4 moving in synchronization with the steps 2.
  • the outer surface of the main frame 5 is covered with an outer plate 16 such as a decorative laminated sheet for safety and design.
  • the thickness H of the escalator apparatus shown in Fig. 1 is decided by the moving diameter of the steps 2 at both ends of the escalator.
  • the thickness H of the escalator apparatus is a value obtained by adding the diameter of the drive sprocket 62, the peripheral moving track of the steps 2 rotating round it and turning, and the safety distance reserved up and down.
  • Fig. 6 shows a schematic structure of the chain 8 and the steps 2 at the turning portion 14 (see Fig. 1 ) of the escalator apparatus 1 and is a drawing for explaining a moving (rotating) track 8a of the chain 8 and a moving (rotating) track 23a of the front wheels 23 of the steps.
  • Fig. 7 shows the chain 8 in this embodiment and (a) is a side view and (b) is a perspective view.
  • the chain 8 wound over the drive sprocket 62 is composed of many chain links 81 and the chain links 81 have respectively two pin holes 82 and 83 and link pins 84 to be inserted into the pin holes so as to connect the neighboring chain links 81. Therefore, the interval between the two pin holes 82 and 83 is the length P of one chain pitch.
  • the pitch length P is a length obtained by dividing a distance L11 between the front wheel shafts of the neighboring steps 2 by the number of pitches 6 between the front wheel shafts.
  • the moving track of the connection portion of the chain 8 with the front wheel shafts 231 of the steps 2 passes outside the outer periphery of the teeth of the drive sprocket 62 and hence there is no need to install the aforementioned special teeth in the drive sprocket 62. Therefore, the size of the drive sprocket 62 can be selected freely and the thickness of the escalator apparatus can be made smaller. Concretely, when the number of chain pitches is 6, a drive sprocket 62 having 19 to 23 teeth other than a multiple of 6 can be used and the thickness of the escalator apparatus can be made smaller. The same may be said with the constitution of the follower sprocket 71 and the chain 8.
  • the link of the chain 8 for connecting the front wheel shafts 231 of the steps 2 is a specific link 85 in a convex triangular shape with the vertex thereof looking toward the outside of the moving (rotating) track 8a of the chain 8.
  • the link 81 of the chain 8 one of six links is a triangular specific link 85.
  • two pin holes 86 and 87 are formed respectively and for these two pin holes 86 and 87, another pin hole 88 is formed at the location of the vertex of the triangle.
  • the front wheel shafts 231 see Fig. 2(a) , Fig. 3(a), or Fig.
  • the pin hole 88 can be used as a hole for connecting the front wheel shafts 231 to the chain 8.
  • a connection portion C1 with the front wheel shafts 231 of the steps is structured outside the two link pins 84.
  • the specific links 85 are arranged in the inside links of the chain 8. However, they may be arranged in the outside links.
  • connection portion C1 is structured ⁇ R1 above so that it is prevented from touching the outer periphery of the teeth of the drive sprocket 62 at the turning portion 14. Namely, the moving track 23a of the front wheels 23 of the steps 2 is lifted up ⁇ R1 above the moving track 8a of the chain 8 by the triangular specific links 85 of the chain 8 and the moving track 23a of the front wheels 23 is located outside the track of the outer periphery of the teeth of the drive sprocket 62.
  • the front wheels 23 and the rear wheels 24 of the steps 2 rotate and move respectively on the front wheel guide rail 91 and the rear wheel guide rail 92 as the chain 8 moves.
  • connection port C1 of the chain 8 with the front wheel shafts 231 of the steps 2 is structured to be located outside the track of the outer periphery of the teeth of the drive sprocket 62.
  • connection port C1 of the chain 8 with the front wheel shafts 231 of the steps 2 is structured to be located outside the outer end of the chain 8.
  • the section where the connection port C1 of the chain 8 with the front wheel shafts 231 of the steps 2 is located outside the moving (rotating) track of the outer periphery of the teeth of the drive sprocket 62 may not be the aforementioned section where the chain 8 and the drive sprocket 62 mate with each other and it may be the semicircular section in the direction of the end of the drive sprocket 62 or the section in the direction of the end from the center of the drive sprocket 62.
  • connection portion C1 of the chain 8 with the steps 2 can be prevented from interference with the teeth of the drive sprocket 62 and as a result, there is no need to install the aforementioned special teeth in the drive sprocket 62 and the teeth of the drive sprocket 62 can be made in the practically same shape.
  • the practically same shape means the same shape as long as the participation in the front wheel shafts 231 is concerned though the shape is changed and in other words, it means that there are no special teeth processed free of interference with the front wheel shafts 231.
  • the number of teeth of the drive sprocket may be set to AN+B (A, B: natural numbers, 1 ⁇ B ⁇ N). Therefore, there is no need to always decide the number of teeth of the drive sprocket 62 by a multiple of the number of chain pitches between the front wheel shafts 231 and if the number of teeth is within the range of less than 24 teeth meeting the desired thickness H of the escalator apparatus, it can be decided freely. Namely, by use of the constitution of this embodiment, a drive sprocket 62 having 19 to 23 teeth can be selected.
  • the number of teeth of the drive sprocket 62 is not set to a multiple of the number of chain pitches like this, the chain 8 and the drive sprocket 62 shift and mate with each other.
  • the number of teeth of the drive sprocket 62 is 21, so that whenever the drive sprocket 62 makes one rotation, it shifts by 3 teeth (21 teeth-6 pitches x 3) and the chain 8 and the drive sprocket 62 mate with each other.
  • the diameter of the drive sprocket 62 can be made smaller and the thickness of the escalator apparatus can be made smaller.
  • This embodiment is structured so that the moving track 23a of the front wheel shafts 231 of the steps 2 is located outside the moving track 8a of the chain 8.
  • the linear distance L21 between 6 pitches on the horizontal portion 15 is shortened to the linear distance L22 between 6 pitches on the turning portion. Therefore, when the front wheel shafts 231 of the steps 2 are directly connected to the links 81 of the chain 8, the moving track 8a of the chain 8 draws a circular arc, so that the linear distance between the front wheel shafts 231 of the neighboring steps 2 is also shortened.
  • the neighboring step plates 21 move at a minimum gap for safety of transferring persons. Therefore, at the turning portion 14, when the minimum gap of the neighboring step plates 21 is shortened, the neighboring steps 2 interfere with each other and are not held mechanically.
  • the aforementioned linear distance is shortened as shown below.
  • the moving track 23a of the front wheels 23 of the steps 2 is lifted up ⁇ R1 above the moving track 8a of the chain 8 by the triangular specific links 85 of the chain 8.
  • the distance L11 between the front wheel shafts of the neighboring steps 2 and the distance L21 between the two neighboring specific links of the chain 8 are the same.
  • Fig. 8 is a schematic view of the chain 8 and the steps 2 on the turning portion 14 of an escalator apparatus and a drawing for explaining the moving track 8a of the chain 8 and the moving track 23a of the front wheels 23 on the turning portion 14.
  • Fig. 9 is a drawing showing the chain 8 in this embodiment and (a) is a side view and (b) is a perspective view.
  • the constitution of the chain link 81 of the chain 8 wound over the drive sprocket 62, the pin holes 82 and 83, and the link pins 84 is the same as that of the aforementioned embodiment.
  • the link of the chain 8 to which the front wheel shafts 231 of the steps 2 are connected is the triangular specific link 89 having a different hole from that of the aforementioned embodiment.
  • the respect that two pin holes 891 and 892 are formed in the triangular specific link 89 is the same as that of the aforementioned embodiment.
  • a long pin hole 893 (hereinafter called an elongated hole) is formed perpendicularly to the moving direction of the escalator apparatus at the center part of the specific link 98 and when the front wheel shafts 231 of the steps 2 pass through the added elongated hole 893, the front wheel shafts 231 are connected to the chain 8.
  • the top 8931 of the elongated hole 893 is the section where the chain 8 mates with the drive sprocket 62 and the elongate hole is structured longer on the outside so that it is located outside the rotation track of the outer periphery of the teeth of the drive sprocket 62.
  • the elongated hole 893 is used to change the connection position of the elongated hole 893 with the front wheel shafts 231 of the steps 2 on the horizontal portion 15 and the turning portion 14.
  • the specific link 89 is arranged in the inside links of the chain 8. However, it may be arranged in the outside links.
  • the displacement of the connection position of the elongated hole 893 with the front wheel shafts 231, as mentioned next, is decided by the track of the front wheels 23 of the steps 2 which is guided and moved by the front wheel guide rail 91.
  • the moving track 23a of the front wheels 23 and the moving track 8a of the chain 8 will be explained hereunder in detail.
  • the front wheel guide rail 91 for guiding the front wheels 23 is arranged so that the moving track 23a of the front wheel shafts 231 of the steps 2 draws the same track as the moving track in the sixth embodiment shown in Fig. 6 .
  • the front wheels 23 rotate and move on the moving track on the same straight line as that of the moving track 8a of the chain 8 on the front wheel guide rail 91.
  • the front wheel shafts 231 of the steps 2 are connected to the lowest part of the elongated hole 893.
  • the moving track 23a of the front wheels 23 starts to draw a different track from the moving track 8a of the chain 8 by under the guidance of the front wheel guide rail 91.
  • the front wheel shafts 231 of the steps 2 gradually move toward the outside of the elongated hole 893.
  • the front wheel shafts 231 are located outside the chain 8.
  • the front wheel shafts 231 of the steps 2 are connected to the top 3931 (at this position, the elongated hole 893 is almost in the sideways state) of the elongated hole 893 and hereafter slowly returned to the original state.
  • connection portion C2 of the chain 8 with the steps 2 can be prevented from interference with the teeth of the drive sprocket 62, and there is no need to use a drive sprocket having the aforementioned specific teeth, and a drive sprocket 62 having an optional number of teeth can be used, and the desired thickness H of the escalator apparatus can be met.
  • the moving track 23a of the front wheels 23 are shifted toward the end of the escalator apparatus more than the moving track 8a of the chain 8, so that interference between the neighboring steps 2 is not caused, and a drive sprocket 62 smaller than a conventional device can be used, and the thickness H2 of the escalator apparatus can be made smaller.
  • the space between the forward and backward paths of the chain 8 is wider on the horizontal portion 15 than the turning portion 14. The reason will be explained hereunder.
  • the diameter R of the drive sprocket 62 is the moving diameter of the chain 8 as it is and on the other hand, on the horizontal portion 15, the space between the forward and backward paths of the chain 8 is widened to R+2 ⁇ R2.
  • the thickness H2 of the escalator apparatus is decided by the turning portion 14 and on the horizontal portion 15, there is an allowance up and down.
  • the space between the forward and backward paths of the chain 8 is widened up and down and the space generated between the forward and backward paths of the chain 8 on the horizontal portion 15 is used effectively.
  • it is not essential to widen the space and it can be narrowed inversely.
  • Fig. 10 is a schematic view of the front wheel guide rail 91 and the rear wheel guide rail 92 in the embodiment shown in Fig. 8 and the center 23b of the moving track 23a of the front wheels 23 is shifted by D toward the outer end of the escalator apparatus from the center 24b of the moving track 24a of the rear wheels 24.
  • the space S1 between the front wheel guide rail 91 and the rear wheel guide rail 92 on the horizontal portion 15 is a space perpendicular to the moving direction of the escalator apparatus.
  • the horizontal space S2 between the front wheel guide rail 91 and the rear wheel guide rail 92 on the turning portion 14 is larger than the space S1 perpendicular to the moving direction of the escalator apparatus. The reason is that to prevent the step 2 from interference with the preceding step 2, as shown in Fig.
  • the moving track 23a of the front wheels 23 is guided by the front wheel guide rail 91 so as to be shifted by D from the center 24b of the moving track 24a of the rear wheels 24 toward the outer end of the escalator apparatus.
  • the moving track 23a of the front wheels 23 is shifted toward the outer end of the escalator apparatus more than the moving track 8a of the chain 8, there is no need that the moving track 23a of the front wheels 23 is in a semicircular shape and it may be in an ellipse shape or in combination of circular arcs of two different diameters (double curve).
  • the thickness from the floor of the getting on and off platform of the escalator to the body bottom of the escalator is 1000 mm, and the length of the step plates 21 of the steps 2 is 408 mm, and the maximum thickness of the steps 2 is 360 mm, and the height of the steps 2 is 335 mm, and the diameter of the moving track of the rear wheels 24 is 264 mm, and the upper and lower safety distances are about 20 mm respectively.
  • the diameter of the drive sprocket is 654.36 mm, and the number of teeth is 30, and the number of pitches of the chain 8 between the neighboring steps 2 is 6.
  • the size of the steps 2 of this embodiment will be explained by referring to Fig. 5 .
  • the length Ls of the step plates 21 is 408.5 mm, and the maximum thickness hs of the steps 2 is 278 mm, and the height hh of the steps 2 is 245.5 mm.
  • the diameter R of the drive sprocket is 429.91 mm.
  • the thickness H1 or H2 of the escalator apparatus is decided by a dimension that to the distance between the two points a and b on the turning portion 14 where the two steps 2 approach, some safety distance is added. Therefore, the thickness H of the escalator apparatus is not more than the length of two step plates 21 with a length of Ls and in this embodiment, it is less than 817 mm.
  • the thickness from the floor of the getting on and off platform of the escalator to the bottom of the escalator body can be set to a value which is more than two times of the height of the steps 2 and less than two times of the step plates 21 in the moving direction.
  • the aforementioned is a case of an escalator apparatus in the ordinary use state.
  • a wheelchair transfer function is added so as to be used by a wheelchair user.
  • the escalator apparatus 1, to realize the wheelchair transfer function has, for example, three neighboring specific step groups 100 in the line of the steps 2.
  • the specific step groups 100 are not limited to three and depending on the installation location and the type of a loading wheelchair, a constitution of various combinations such as two or four steps is available.
  • the specific step groups 100 during the normal operation, are operated in the same form in the appearance as that of the other steps 2.
  • the two steps 102 and 103 of the specific step groups 100 are structured so that the step plates 102F and 103F can move up and down and when a wheelchair transfer instruction is issued, the step plates 102F and 103F are structured so that they are maintained at the same height as that of the step plate of the upper step 101 so as to form a wheelchair loading surface.
  • connection devices 129A and 129B which are forming and release mechanisms of the wheelchair loading surface are installed.
  • the connection device 129A (129B), for example, when a wheelchair transfer instruction is issued, stops in the neighborhood of the getting-on portion or is connected to the specific step group 100 moving at low speed in the neighborhood of the getting-on portion, operates the drive mechanism of the specific step group 100, and forms a wheelchair loading surface.
  • the connection device 129B (129A) is connected to the specific step group 100, operates the drive mechanism of the specific step group 100, and releases the wheelchair loading surface.
  • the middle step 102 and the lower step 103 respectively support the step plates 102F and 103F so as to move in the vertical direction for the step frames 102W and 103W and in the step plate depth direction.
  • connection means 118 and 119 for forming and releasing the wheelchair loading surface for connecting the step plates 102F and 103F of the steps on the lower side are respectively installed and furthermore, in the lower step 103, a wheel stopper 120 ( Fig. 11 ) coming out and in from the lower side of the step plate 103F is installed.
  • connection means 118 and 119 which are movable parts and the wheel stopper 120 are driven like this, to the steps 101 and 102, the sprockets 121 to 123 and 121R to 123R ( Fig. 11 ) are shaft-supported and a part of these sprockets is protruded under the step frames 101W, 102W, and 103W respectively.
  • gears are installed on the coaxial line respectively and power transfer mechanisms 124 to 126 ( Fig. 11 ) are composed of other gears mating with these gears and still other gears.
  • connection devices 129A and 129B are supported at the height where they are mated with the sprockets 121 to 123 and 121R to 123R during transfer of the wheelchair.
  • connection devices 129A and 129B during the normal operation, move to the no-connection position separated from the passing position of the sprockets 121 to 123 and 121R to 123R and during transfer of the wheelchair, the connection devices move to the connection position opposite to the passing position of the sprockets 121 to 123 and 121R to 123R in the horizontal direction, that is, in the direction along the step surface of the step plate of the step.
  • connection devices 129A and 129B including the drive means therefor have the same constitution, so that the connection device 129A including the rack 128 will be explained as an example.
  • the main frame 5 on the fixing side is horizontally fixed to the base 130.
  • the base 130 may be formed so as to serve as a cross beam itself of the main frame 5 or may be put and formed on the cross beam.
  • the base 130 displayed here is formed so as to serve as the cross beam itself of the main frame 5.
  • the base 130 guides a push car 131 so as to move the rack 128 horizontally only in the width direction of the steps 2 and the rack 128 is fixed to the push car 131 so as to be parallel with the passing direction of the sprockets.
  • the drive means 132 horizontally adjacent to the push car 131 is fixed.
  • the drive means 132 in this embodiment, is composed of a screw bar 133 screwed in the push car 131 and a drive motor 135 connected to the other end of the screw bar 133 via a reduction mechanism 134.
  • the height Ht of the connection device 129A is within the interval Hu between each step 2 on the forward path side and each step 2 on the backward path side in the vertical direction and is installed within the range of the width Ws of each step 2.
  • a drive means 132 instead of the screw bar 133, the reduction mechanism 134, and the drive motor 135, a drive means in another form such as a hydraulic jack and an electromagnetic plunger may be used.
  • the drive motor 135 of the drive means 132 When a wheelchair transfer instruction is issued, the drive motor 135 of the drive means 132 is driven, rotates the screw bar 133, moves the push car 131 on the passing position side of the sprockets 121 to 123 of the specific step group 100, and makes the rack 128 correspond to the passing position of the sprockets 121 to 123.
  • the operation in the wheelchair transfer mode is started.
  • the sprockets 121 to 123 protruded below the specific step group 100 are mated one after another by the relative movement with the rack 128, rotate by the force generated by the relative movement, and drive the connection means 118 and 119 and the wheel stopper 120 via the power transfer mechanisms 124 to 126.
  • the drive of the sprockets 121 to 123 as shown in Figs.
  • connection means 118 and 119 connect the step plates 101F and 102F of the upper step 101 and the middle step 102 which are protruded under the step plate of the neighboring lower step 2 and the step plates 102F and 103F of the middle step 102 and the lower step 103 and as a result, form a horizontal wheelchair loading surface by the three step plates 101F, 102F, and 103F.
  • the wheel stopper 120 is protruded upward from the end of the step plate 103F of the lower step 103 on the riser 103R side and prevents the wheelchair 142 in operation from a fall accident.
  • step plates 101F, 102F, and 103F are connected respectively and the step plates 102F and 103F of the middle step 102 and the lower step 103 are supported so as to be moved in the vertical direction and in the step plate depth direction for the step frames 102W and 103W, so that the upper step 101, the middle step 102, and the lower step 103 are lifted up from the step frames 102W and 103W and hold the horizontal wheelchair loading surface.
  • the ascended step plates 102F and 103F return to the specified positions of the step frames 102W and 103W.
  • the rack 127 of the connection device 129B installed in the space between the forward path and the backward path of the steps 2 and 101 to 103 in the flat portion of upper floor 11 already stands by on the passing position of the sprockets 121R to 123R of the steps 101 to 103 and connects with the sprockets 121R to 123R of the specific step group 100.
  • connection means 118 and 119 are pulled out from the lower side of the neighboring step plate and returned to their original positions. Therefore, the connection of each of the step plates 101F, 102F, and 103F is released and the wheel stopper 120 is moved backward from the surface of the step plate 103F from which it is protruded and returned to its original position, so that the appearance of each of the steps 101, 102, and 103 becomes the same as that of the normal steps 2 ( Fig. 13 ).
  • a wheel chair user or a person in charge when the specific step group 100 advances and approaches an upper getting on and off floor 108 of the flat portion of upper floor 11, releases the brake of the wheelchair 142 and hence runs on the upper getting on and off floor 108 and can get off on the upper floor side.
  • the escalator apparatus 1 corresponding to the wheelchair may stop the operation once or may continue the operation as it is without stopping.
  • connection device 129B on the side of the flat portion of upper floor 11 moves the rack 127 from the no-connection position to the passing position of the sprockets 121R to 123R.
  • the sprocket 123R of the lower step 103 which is the top of the specific step group 100 passes through the position of the rack 127, it is mated with the rack 127 and driven.
  • the relative moving direction of the sprocket 123R with the rack 127 is opposite to that during the up operation, so that the operation of moving back the wheel stopper 120 during the up operation is changed to an operation of projecting the wheel stopper 120 this time.
  • the specific step group 100 stops it so as to be flush with the upper getting on and off floor 108.
  • the specific step group 100 makes the wheelchair 142 run on the floor.
  • the wheelchair 142 since the wheel stopper 120 is already projected, can run up to the top of the wheelchair loading surface in safety.
  • the sprockets 122R and 121R of the middle step 102 and the upper step 101 are sequentially mated with the rack 127, drive the connection means 119 and 118, connect the three step plates 101F, 102F, and 103F, and hold them in the horizontal state.
  • the wheelchair loading surface is structured so as to connect a plurality of specific steps.
  • the present invention is not limited to it and a constitution that a single specific step forms a wheelchair loading surface may be used.
  • the size of the drive sprocket 62 and the follower sprocket 71 can be freely selected, so that when a space sufficient enough to install the aforementioned connection devices 129A and 129B is reserved, even in an escalator apparatus 1 corresponding to a wheelchair, an escalator apparatus with a small thickness can be realized.

Landscapes

  • Escalators And Moving Walkways (AREA)

Claims (15)

  1. Fahrtreppenvorrichtung mit
    einer Kette (8), die dazu ausgebildet ist, an beiden Enden in Zahnräder (62, 71) einzugreifen und die Bewegungsrichtung an den beiden Enden zu ändern,
    mehreren Stufen (2), die mit der Kette (8) verbunden sind, um die Bewegungsrichtung an den beiden Enden umzukehren, und
    einer Antriebseinrichtung (611) zum Antreiben eines (62) der Zahnräder,
    wobei Verbindungsabschnitte (C1; C2) der Stufen (2) mit der Kette (8) so ausgebildet sind, dass eine Bewegungsbahn der Verbindungsabschnitte in dem Abschnitt, in dem die Kette in die Zahnräder eingreift, außerhalb einer Rotationsbahn des Außenumfangs der Zähne der Zahnräder (62, 71) angeordnet ist,
    dadurch gekennzeichnet, dass die Vorrichtung so ausgebildet ist, dass sie die Kette (8) durch Verschieben des Eingreifens der Kette in die Zahnräder (62, 71) derart antreibt, dass bei Ausführen einer Rotation durch die Zahnräder die Relativposition der Verbindungsabschnitte (C1; C2) zu den Zähnen der Zahnräder (62, 71) so ausgebildet ist, dass sie von der Relativposition der Verbindungsabschnitte zu den Zähnen der Zahnräder vor der Rotation verschieden ist.
  2. Fahrtreppenvorrichtung nach Anspruch 1, wobei alle Zähne der Zahnräder (62, 71) im Wesentlichen die gleiche Form haben.
  3. Fahrtreppenvorrichtung nach Anspruch 1, wobei
    die Kette (8) sechs Kettenglieder (81, 85; 81, 89) in dem Intervall zwischen Verbindungsabschnitten (C1; C2) benachbarter Stufen (2) und der Kette aufweist, und
    die Zahnräder (62, 71) 19 bis 23 Zähne aufweisen.
  4. Fahrtreppenvorrichtung nach Anspruch 1, wobei
    die Kette (8) flache Abschnitte (11, 12) einer oberen und einer unteren Ebene (7, 31) und einen geneigten Abschnitt (13) aufweist, in den die Zahnräder (62, 71) eingreifen,
    die Stufen (2) wenigstens eine Stufe (101, 102, 103) aufweisen, die eine Rollstuhlladefläche bildet,
    die Vorrichtung ein Verbindungselement (129A, 129B) aufweist, das zwischen dem Vorwärts- und dem Rückwärtspfad der Stufen (2) in den flachen Abschnitten (11, 12) der oberen und der unteren Ebene (7, 31) eingerichtet und mit der die Rollstuhlladefläche bildenden Stufe (101, 102, 103) verbunden ist und die Rollstuhlladefläche bildet und freigibt, und
    in dem Abschnitt, in dem die Kette (8) in die Zahnräder eingreift, eine Bewegungsbahn der Verbindungsabschnitte (C1; C2) der Stufen mit der Kette so ausgebildet ist, dass sie außerhalb einer Rotationsbahn des Außenumfangs der Zähne der Zahnräder (62, 71) angeordnet ist.
  5. Fahrtreppenvorrichtung nach Anspruch 1, wobei in dem Abschnitt, in dem die Kette (8) in die Zahnräder (61, 71) eingreift, eine Bewegungsbahn der Verbindungsabschnitte (C1; C2) der Stufen (2) mit der Kette so ausgebildet ist, dass sie außerhalb einer Rotationsbahn des Außenendes der Kette angeordnet ist.
  6. Fahrtreppenvorrichtung nach einem der Ansprüche 1 bis 5, wobei eine Führungseinrichtung zum Verlängern des linearen Abstands (L21, L22) zwischen jedem Verbindungsabschnitt der zwei benachbarten Stufen (2), der durch Ziehen eines Kreisbogens durch die Kette (8) an den beiden Enden zu kürzen ist, an den beiden Enden eingerichtet ist.
  7. Fahrtreppenvorrichtung nach einem der Ansprüche 1 bis 5, wobei
    die Stufen (2) jeweils Vorderräder (23) und Hinterräder (24) aufweisen,
    die Vorrichtung eine Einrichtung zum Führen der Vorderräder und der Hinterräder jeweils wenigstens an dem horizontalen Abschnitt (15) und an dem Ende der Fahrtreppe aufweist, und
    das Intervall (Hu) zwischen der Führungseinrichtung der Vorderräder (23) und der Führungseinrichtung der Hinterräder (24) an dem Ende der Fahrtreppe größer gemacht ist als an dem horizontalen Abschnitt (15).
  8. Fahrtreppenvorrichtung nach einem der Ansprüche 1 bis 5, wobei
    die Stufen (2) jeweils Vorderräder (23) und Hinterräder (24) aufweisen,
    die Vorrichtung eine Einrichtung zum Führen der Vorderräder und der Hinterräder jeweils wenigstens an dem horizontalen Abschnitt (15) und dem Umkehrabschnitt (14) aufweist, und
    das Intervall (Hu) zwischen der Führungseinrichtung der Vorderräder und der Führungseinrichtung der Hinterräder an dem Umkehrabschnitt (14) größer gemacht ist als an dem horizontalen Abschnitt (15).
  9. Fahrtreppenvorrichtung nach einem der Ansprüche 1 bis 5, wobei die Stufen (2) jeweils Vorderräder (23) und Hinterräder (24) aufweisen, und eine Einrichtung zum Verschieben der Mitte einer Bewegungsbahn (23a) der Vorderräder an den beiden Enden in Richtung zum Ende der Fahrtreppe von der Mitte einer Bewegungsbahn der Hinterräder eingerichtet ist.
  10. Fahrtreppenvorrichtung nach einem der Ansprüche 1 bis 5, wobei eine Einrichtung zum Verschieben der Bewegungsbahn der Verbindungsabschnitte (C1; C2) der Stufen (2) mit der Kette (8) an den beiden Enden in Richtung des Endes der Fahrtreppe von einer Bewegungsbahn (8a) der Kette eingerichtet ist.
  11. Fahrtreppenvorrichtung nach einem der Ansprüche 1 bis 5, wobei die Vorrichtung eine Einrichtung aufweist, um die Kette (8) so zu führen, dass eine Bewegungsbahn (8a) der Kette an den beiden Enden kreisförmige Bogenform aufweist, und die Bewegungsbahn der Verbindungsabschnitte (C1; C2) mit der Kette an den beiden Enden elliptische Form aufweist.
  12. Fahrtreppenvorrichtung nach einem der Ansprüche 1 bis 5, wobei die Dicke von der Ebene der Fahrtreppenplattform zum Ein- und Aussteigen zu dem Boden des Fahrtreppenkörpers auf einen Wert eingestellt ist, der mehr als zweimal so groß ist wie die Höhe (hh) der Stufen (2) und weniger als zweimal so groß wie die Länge (Ls) der Trittplatten (21) in der Bewegungsrichtung.
  13. Fahrtreppenvorrichtung nach Anspruch 1, wobei
    die Kette (8) so ausgebildet ist, dass sie mit mehreren Gliedern (89) zu verbinden ist,
    die mehreren Stufen (2) Trittplatten (21), Stiche (22), Vorderräder (23) und Hinterräder (24) aufweisen, die mit den Gliedern (89) der Kette (8) zu verbinden sind, und
    die Verbindungsabschnitte (C1; C2) der Stufen (2) mit der Kette durch die Glieder (89) gebildet sind.
  14. Fahrtreppenvorrichtung nach Anspruch 1, wobei
    die Kette (8) so ausgebildet ist, dass sie mit mehreren Gliedern (89) zu verbinden ist,
    die mehreren Stufen (2) Trittplatten (21), Stiche (22), Vorderräder (23) und Hinterräder (24) aufweisen, die mit den Gliedern (89) der Kette so verbunden sind, dass sie die Bewegungsrichtung an den beiden Enden umkehren,
    Langlöcher (893) in den Gliedern (89) gebildet sind, die die Stufen (2) so verbinden, dass deren Oberseiten in dem Abschnitt, in dem die Kette (8) in die Zahnräder eingreift, außerhalb einer Bewegungsbahn des Außenumfangs der Zähne der Zahnräder (62, 71) angeordnet sind, und
    die Vorrichtung eine Einrichtung aufweist, um so zu führen, dass die Verbindungsabschnitte der Kette (8) in dem Abschnitt, in dem die Kette in die Zahnräder eingreift, mit den Gliedern (89) der Stufen durch die Oberseiten der Langlöcher (893) verbunden sind.
  15. Fahrtreppenvorrichtung nach Anspruch 1, wobei
    die mehreren Stufen (2) Trittplatten (21), Stiche (22), Vorderräder (23) und Hinterräder (24) aufweisen, die mit der Kette (8) so verbunden sind, dass sie die Bewegungsrichtung an den beiden Enden umkehren, und
    wenn die Anzahl von Kettengliederunterteilungen (89), die zwischen Verbindungsabschnitten (C1; C2) der benachbarten Stufen mit der Kette (8) existieren, N beträgt, die Anzahl von Zähnen der Zahnräder (62, 71) auf AN+B (A, B: natürliche Zahlen; 1 ≤ B ≤ N-1) eingestellt ist.
EP00956867A 2000-08-31 2000-08-31 Fahrtreppe Expired - Lifetime EP1333001B8 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/005946 WO2002018259A1 (fr) 2000-08-31 2000-08-31 Escalator

Publications (4)

Publication Number Publication Date
EP1333001A1 EP1333001A1 (de) 2003-08-06
EP1333001A4 EP1333001A4 (de) 2006-07-05
EP1333001B1 true EP1333001B1 (de) 2009-09-30
EP1333001B8 EP1333001B8 (de) 2009-11-11

Family

ID=11736420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00956867A Expired - Lifetime EP1333001B8 (de) 2000-08-31 2000-08-31 Fahrtreppe

Country Status (5)

Country Link
EP (1) EP1333001B8 (de)
JP (1) JP3972143B2 (de)
CN (1) CN1258473C (de)
DE (1) DE60043080D1 (de)
WO (1) WO2002018259A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
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US10214389B2 (en) 2014-12-02 2019-02-26 Otis Elevator Company Drive chain and drive chain mechanism and conveyor comprising such a drive chain mechanism

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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JP5126880B2 (ja) * 2006-08-31 2013-01-23 東芝エレベータ株式会社 コンベア装置
JP5610717B2 (ja) * 2009-07-02 2014-10-22 三菱電機株式会社 乗客コンベアの駆動装置
CN105314516A (zh) * 2015-12-03 2016-02-10 南通江中光电有限公司 一种扶梯转向固定装置和其压铸方法
WO2018108560A1 (de) * 2016-12-16 2018-06-21 Inventio Ag Personentransporteinrichtung mit einer geschwindigkeitsmessvorrichtung
CN108373097A (zh) * 2018-02-08 2018-08-07 桑浩 轻型时尚电梯
CN111847205B (zh) * 2019-04-24 2022-06-10 吕震伟 一种上行的手扶电梯和下行的手扶电梯
CN110550373A (zh) * 2019-10-14 2019-12-10 上海欣巴自动化科技有限公司 一种用于立体库存放、输送的双链卷托循环式提升机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211833B2 (de) * 1972-09-29 1977-04-02
JPS5912066A (ja) * 1982-07-09 1984-01-21 三菱電機株式会社 連節踏段エスカレ−タ
US4953685A (en) * 1989-08-10 1990-09-04 Otis Elevator Company Step chain for curved escalator
JP2552745B2 (ja) * 1990-01-16 1996-11-13 三菱電機株式会社 曲線エスカレーター
JPH04358687A (ja) * 1991-06-05 1992-12-11 Hitachi Ltd 乗客コンベア
JP3432745B2 (ja) * 1997-06-17 2003-08-04 日本フィレスタ株式会社 乗客コンベア装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10214389B2 (en) 2014-12-02 2019-02-26 Otis Elevator Company Drive chain and drive chain mechanism and conveyor comprising such a drive chain mechanism

Also Published As

Publication number Publication date
DE60043080D1 (de) 2009-11-12
WO2002018259A1 (fr) 2002-03-07
EP1333001A4 (de) 2006-07-05
CN1258473C (zh) 2006-06-07
JP3972143B2 (ja) 2007-09-05
EP1333001B8 (de) 2009-11-11
CN1454180A (zh) 2003-11-05
EP1333001A1 (de) 2003-08-06

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