JP2010215297A - Passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a passenger conveyor for lightening a frame body, of course, improving productivity of the frame body, and simply disassembling the frame body. <P>SOLUTION: A plurality of side frame units having an upper side 11a which is an upper arc part formed by bending an peripheral edge of a steel plate into an L-shaped cross section, a lower side 11b which is a bottom arc part, a connection side 11c which is a connection part, and a side face 11d surrounded by them are formed. The connection sides 11c of the adjacent side frame units are connected with each other via a connection member 13. Also, a vertical member (15) fastened to the upper side 11a, the lower side 11b and the side face 11d of the steel plate is provided to constitute right and left side frame bodies 11A, 11B. The vertical members (15) of the right and left frame bodies 11A, 11B are connected with lateral grinders 12A, 12B. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to passenger conveyors such as escalators and electric roads, and more particularly to passenger conveyors that have a devised frame structure.

  Conventionally, in order to reduce the weight of the frame of the passenger conveyor and to improve the productivity by reducing the welding work, the upper side part constituting the upper chord part by bending the edge of the steel plate and the lower side part constituting the lower chord part And a side frame between the upper side and the lower side, and a vertical member that is spot-welded to the side from the upper side to the lower side and arranged at a plurality of positions in the longitudinal direction of the frame. As shown in Patent Document 1, there has already been proposed a structure in which a frame is formed by separating the side frames left and right and connecting them with a cross beam.

Japanese Utility Model Publication No. 58-42373

  In the frame described in Patent Document 1, since a plurality of vertical members are spot-welded along the longitudinal direction, the welded portion including the vertical members is thermally deformed by the welding heat. For this reason, in general passenger conveyors where rails and treadle guide rails are mounted on the vertical members, the mounting positions of the rails and guide rails on the vertical members deformed by thermal deformation are manually restored. It had to reduce productivity.

  Furthermore, when renewing to a new passenger conveyor, the vertical members of the old passenger conveyor are fixed to the steel plate by spot welding, so when dismantling and removing the old passenger conveyor, There was a problem of having to disassemble and spending a long time on dismantling work.

  An object of the present invention is to provide a passenger conveyor that can improve the productivity of a frame body as well as reduce the weight of the frame body and that can easily perform the dismantling operation of the frame body.

  In order to achieve the above object, the present invention has an upper side that becomes an upper chord part, a lower side that becomes a lower chord part, a connecting side that becomes a connecting part, and a side surface surrounded by these by bending the periphery of the steel plate into an L-shaped cross section. A plurality of side frame units are formed, the connecting sides of adjacent side frame units are fastened via connecting members, and vertical members fastened to the upper side, the lower side, and the side surface of the steel plate are provided to the left and right sides A frame is configured, and the vertical members of the left and right side frames are connected with a horizontal beam.

  By constructing the frame body by connecting the members formed by bending the steel plate as described above, the weight can be reduced as compared to the case where the frame body is configured using the mold material. Needless to say, spot welding is not required, so that the mounting position of each thermally deformed member due to welding heat is not restored, and the productivity can be improved accordingly.

  Furthermore, by using bolts and nuts for fastening, the frame body can be easily disassembled at the time of renewal, and it is no longer necessary to spend a long time for dismantling work.

  As described above, according to the present invention, not only the weight of the frame can be reduced, but also the productivity of the frame can be improved, and a passenger conveyor that can easily disassemble the frame can be obtained.

The schematic side view of the escalator which shows one embodiment to the passenger conveyor by this invention. FIG. 2 is a longitudinal enlarged view taken along line AA in FIG. 1. FIG. 3 is a longitudinal enlarged view of the left half along the line BB in FIG. 1. The side view which follows the CC line of FIG. FIG. 5 is a partially omitted enlarged cross-sectional view taken along line DD in FIG. 4.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a passenger conveyor according to the present invention will be described with respect to an escalator shown in FIGS.

  The escalator 1 includes a frame 4 installed across the upper floor 2 and the lower floor 3 of the building structure, and an upper boarding / exiting floor 5A and a lower section that block the machine rooms provided at both longitudinal ends of the frame 4 from above. A boarding floor 5B, a stage 7 connected endlessly by a step chain 6 in the frame 4 between the upper boarding floor 5A and the lower boarding floor 5B, and a driving device 8 for driving the stage chain 6 And a balustrade panel 9 erected on the frame body 4 facing both sides of the step 7 in the moving direction, and a moving handrail 10 driven along the periphery of the balustrade panel 9 in synchronization with the step 7. is doing.

  The step 7 is supported by a guide rail, which will be described later, installed in the frame 4 so that the traveling wheel 7W is pivotally supported, and the step board on which the passenger rides is always held horizontally and moved on the outward path side. ing.

  The frame 4 includes left and right side frames 11A and 11B and a plurality of cross beams 12A and 12B that connect the left and right side frames 11A and 11B. In the present embodiment, the frame body 4 is divided into an upper frame body 4A, an intermediate frame body 4B, and a lower frame body 4C, which are connected by connecting portions C1 and C2. In order to incline to an inclination angle of about 30 degrees, the upper frame 4A is formed with fold points Q1, P1 for inclining downward, and the lower frame 4C for inclining upward. Folding points Q2 and P2 are formed.

  The side frames 11A and 11B constituting the frame 4 are formed of steel plates for each of the upper frame 4A, the intermediate frame 4B, and the lower frame 4C. That is, the peripheral edge of the steel plate is bent in the same direction into an L-shaped cross section, and the upper side 11a serving as the upper chord portion, the lower side 11b serving as the lower chord portion, the connecting side 11c serving as the connecting portion, and the side surface 11d surrounded by these. Are formed. Since the side frames 11A and 11B have the same configuration, the detailed description will be made on the side frame 11B.

  As shown in FIG. 4, the side frame unit formed in this way has a connecting member 13 attached thereto. That is, the connecting member 13 is installed on the inner side surrounded by the upper side 11a and the connecting side 11c of the side frame unit, and is connected to the upper side 11a and the upper connecting portion 13a that is bolted to the connecting side 11c. A fastening surface is formed by the connecting portion 13b and the side surface portion 13c connected to the side surface 11d and the bolt. The connecting member 13 installed inside the side frame unit surrounded by the lower side 11b and the connecting side 11c is fastened to the lower side part 11d by bolts and the connecting side 11c. It has the connection site | part 13b and the side surface site | part 13c connected with the side surface 11d and a volt | bolt. Then, the connecting member 13 is bolted to the side frame unit, and then the side frame units formed for the upper frame body 4A, the intermediate frame body 4B, and the lower frame body 4C are connected.

  The connecting operation is performed in a state where adjacent connecting sides 11c of the side frame units formed for each of the upper frame body 4A, the intermediate frame body 4B, and the lower frame body 4C are in contact with each other. Are respectively sandwiched by the connecting members 13, and in this state, the bolts B are passed through the adjacent connecting portions 13b to be fastened and connected. At this time, positioning holes 13H are provided in the two connecting members 13 facing each other and the two adjacent connecting sides 11c so that the upper side 11a and the lower side 11b of the adjacent side frame units are not displaced in the vertical direction. The assembly accuracy of the side frames 11A and 11B can be improved by fastening with the bolt B after inserting the positioning pin 14.

  A rail bracket 15 as a vertical member is fixed to the left and right side frames 11A and 11B configured in this manner by bolt fastening over the side surface 11d, the upper side 11a, and the lower side 11b. The rail bracket 15 is also formed by bending a steel plate. The upper fixing portion 15a is bolted to the upper side 11a of the side frame unit, the lower fixing portion 15b is bolted to the lower side 11b, and the side surface 11d is connected to the bolt. Side fixing portion 15c. And the member attachment site | part 15d has protruded toward these side surface fixing | fixed part 15c toward the side frame 11A, 11B, and the attachment seat to which each member is attached and fixed is provided in this member attachment site | part 15d. ing. Specifically, the mounting seat 15A for the outward guide rail 16 that guides the traveling wheel 7W of the step 7, the mounting seats 15B and 15C for the return side guide rails 17A and 17B that guide the traveling wheel 7W, and the skirt guard 18 are provided. A mounting seat 15D to be fixed is provided.

  And, in the middle of the height direction of the rail brackets 15 on both the left and right sides, in other words, between the movement path of the forward step 7 and the return step 7, the transverse beam 12A is bolted, By connecting the cross beam 12B to the lower end portion of the rail bracket 15 by bolts, the left and right side frames 11A and 11B are prevented from falling, and the rigidity of the frame 4 is ensured.

  A plurality of the cross beams 12A and 12B are provided in the longitudinal direction of the frame body 4, and an oil pan OP is placed on the cross beam 12B located at the lower portion, and the left and right sides of the rail bracket are mounted on the left and right sides. The lower end of 15 is bolted and fixed.

  As described above, according to the present embodiment, the side frame units 11A and 11B, which are components of the frame body 4, are connected to each other in the longitudinal direction by using a side frame unit formed by bending a steel plate without using a mold material. Therefore, the weight of the frame body 4 can be reduced.

  And since the connection of the side frame unit and the connection of each member are by bolt fastening, for example, there is no deformation due to the welding heat of the rail bracket 15 and the side frame bodies 11A and 11B, and therefore each mounting seat 15A ~ Since the position adjustment of 15D may be the minimum necessary adjustment, the productivity of the frame body 4 can be improved.

  Further, when the escalator 1 is dismantled at the time of renewal, since there is no welded portion, it is only necessary to loosen and remove the fastened bolt, so that the disassembly work of the frame body 4 can be easily performed.

  In the above description, two connecting members 13 are prepared, one connected to the upper side 11a of the side frame unit and the other connected to the lower side 11b. In the sense of reducing the number of parts, FIG. As shown in the connecting member 13A indicated by a two-dot chain line, an integrated member may be used so that the fastening surface is simultaneously connected to the four surfaces of the upper side 11a, the lower side 11b, the connecting side 11c, and the side surface 11d.

  In addition, the connecting portions C1 and C2 of the upper frame 4A, the intermediate frame 4B, and the lower frame 4C, in other words, end portions that are inclined below the upper frame 4A, and the lower frame Although it was set as the edge part inclined above 4C, as shown in FIG. 1, it divides | segments in the fold point part Q1, P1 of 4 A of upper frames, and the fold point part Q2, P2 of 4 C of lower frames. Also good. By dividing at such a position, there is no bent part, and all the divided frames can be divided into a linear upper horizontal section, an intermediate inclined section, and a lower horizontal section. 4 can be improved and the transportability after disassembly can be improved.

  Further, although the weight can be reduced by the above configuration, when there is a demand for further weight reduction, the triangular holes 19A, 19B, 20A, shown by two-dot chain lines in FIG. By opening 20B, further weight reduction can be achieved. When opening these holes 19A, 19B, 20A, 20B, it is important to avoid the portion of the side surface 11d where the guide rail bracket 15 is located in order to prevent the strength of the side frames 11A, 11B from being lowered. is there. Furthermore, by making the long sides of the triangular holes 19A, 19B, 20A, and 20B face each other, the slope portions 21 and 22 are formed on the side surface 11d to form a truss shape, thereby preventing the rigidity of the side surface 11d from being reduced. can do.

  By the way, when the mounting position of each member is displaced due to the deformation of the frame body 4 due to welding heat, it is the displacement of the installation position of the forward path side guide rail 16 and the return path side guide rails 17A and 17B that is most affected. If the installation of the outward guide rail 16 and the return guide rails 17A and 17B is deviated, the step 7 cannot be guided accurately and smoothly, and vibration and noise are generated when the step travels. As shown in FIG. 1, the section of the frame 4 that must guide the step 7 accurately and smoothly includes the break points Q1, P1 of the upper frame 4A and the break points Q2, P2 of the lower frame 4C. It is an inclined section located between P2. If there is no deformation of the member due to welding heat in this inclined section, the outward guide rail 16 and the return guide rails 17A and 17B can be installed with high accuracy. On the other hand, the driving device 8 and the driving sprocket DS are installed in the horizontal section extending from the folding points Q1, P1 of the upper frame 4A of the frame 4 to the end side, and the folding point of the lower frame 4C is installed. A driven sprocket FS is installed in each horizontal section extending from the parts Q2 and P2 to the end side, and the step chain 6 is wound around and driven, so that these horizontal sections are structured with high rigidity. Is desirable.

  Therefore, the upper horizontal section and the lower horizontal section of the frame body 4 that is installed across the upper and lower floors of the building structure and has the upper horizontal section, the intermediate inclined section, and the lower horizontal section are assembled by bolting using a mold material. The side frame body located in the intermediate inclined section of the frame body is composed of the side frame unit formed of the steel plate described, and the frame structure side and the side of these upper horizontal section and lower horizontal section The intermediate inclined section constituted by the frame unit is connected by bolt fastening. By configuring in this way, the intermediate inclined section has a structure that can be reduced in weight without being deformed, and the upper horizontal section and the lower horizontal section have a structure that is not deformed and has high rigidity. Here, when the floor of the building structure is high, the intermediate inclined section is desirably divided into a plurality of parts in the longitudinal direction in consideration of manufacturability and transportability.

  In the above-described configuration, the frame structure 4 constituting the upper horizontal section and the lower horizontal section of the frame body 4 is configured to have an inclined portion having the same inclination as the inclination of the intermediate inclined section, whereby the intermediate inclined section Since the shape of the steel plate constituting the side frame unit can be a simple rectangular shape, there is an advantage that the steel plate can be easily bent.

  Furthermore, instead of connecting the molds, which are structural members of the frame structure constituting the upper horizontal section and the lower horizontal section, by bolt fastening, a part or all of the connecting portion may be connected by welding. This is because the frame structure has a larger heat capacity than that of the steel plate, and therefore, even if the connection by welding is performed, the thermal deformation of the member is small compared with the case of welding the steel plate.

  However, when the frame structure is constructed by welding the mold members, when dismantling work at the time of renewal, the weld connection must be blown, but the connection by welding is only the upper horizontal section and the lower horizontal section, Since the connection with the inclined section is done by bolt fastening, troublesome fusing work is minimized by disassembling the frame body 4 for each section like the upper horizontal section, the lower horizontal section, and the intermediate inclined section. be able to.

  Each of the above explanations has been described by taking an escalator as an example of a passenger conveyor, but it goes without saying that the present invention can also be applied to an electric road installed on a flat ground or an electric road installed on a sloping ground.

  DESCRIPTION OF SYMBOLS 1 ... Escalator, 2 ... Upper floor, 3 ... Lower floor, 4 ... Frame body, 4A ... Upper frame body, 4B ... Intermediate frame body, 4C ... Lower frame body, 5A ... Upper boarding / alighting floor, 5B ... Lower boarding / alighting floor, 6 ... Step chain, 7 ... Step, 7W ... Running wheel, 8 ... Drive device, 9 ... Bailer panel, 10 ... Moving rail, 11A, 11B ... Side frame, 11a ... Upper side, 11b ... Lower side, 11c Connection side ..., 11d Side surface, 12A, 12B ... Cross beam, 13, 13A ... Connecting member, 13a ... Upper connecting portion, 13b ... Connecting portion, 13c ... Side portion, 13d ... Lower connecting portion, 13H ... Positioning hole, 14 ... Positioning pin, 15 ... Rail bracket, 15a ... Upper fixing part, 15b ... Lower fixing part, 15c ... Side fixing part, 15d ... Member mounting part, 15A-15D ... Mounting seat, 16 ... Outward side guide rail, 17A, 17B ... Return side guide rail 18 ... Skirt guard, 19A, 19B, 29A, 20B ... Hole, 21, 22 ... Slope, B ... Bolt, OP ... Oil pan, Q1, Q2, P1, P2 ... Folding point.

Claims (11)

  A frame installed in the building structure, a step board guided in the frame and connected endlessly, a balustrade erected on the frame at positions corresponding to both sides of the movement direction of the tread, and the balustrade And a handrail that is driven in synchronism with the tread, and the frame includes left and right side frames and a plurality of cross beams connecting the left and right side frames. And bending a peripheral edge of the steel plate into an L-shaped cross section to form a plurality of side frame units having an upper side that becomes the upper chord part, a lower side that becomes the lower chord part, a connecting side that becomes the connecting part, and a side surface surrounded by these. Fastening the connecting sides of adjacent side frame units via connecting members, and providing the vertical members fastened to the upper side, the lower side and the side surface of the steel plate to constitute the side frame body, the left and right sides The vertical members of the frame are connected by the horizontal beams. Customer conveyor.   A frame body that is installed in a building structure and has machine rooms formed at both ends in the longitudinal direction, a tread plate that is guided in the frame body and connected endlessly, and the frame body at a position corresponding to both sides in the moving direction of the tread plate And a railing that is guided by a peripheral edge of the balustrade and driven in synchronization with the tread plate, the frame body is connected to the left and right side frame bodies and the left and right side frame bodies In the passenger conveyor having a plurality of transverse girders, the side frame located between the machine chambers formed at both ends in the longitudinal direction of the frame is bent at the periphery of the steel plate into an L-shaped cross section, and the upper chord part Forming a plurality of side frame units having an upper side that becomes a lower side, a lower side that becomes a lower chord part, a connecting side that becomes a connecting part, and a side surface surrounded by these, and fastening the connecting sides of adjacent side frame units through a connecting member And a vertical member fastened to the upper side, the lower side, and the side surface of the steel plate. Passenger conveyor provided with structure, characterized in that the longitudinal members of said left and right side frame coupled with the crossbeam.   A frame that is installed across the upper and lower floors of a building structure and has an upper horizontal section, an intermediate inclined section, and a lower horizontal section, a tread that is guided in the frame and connected endlessly, and both sides of the direction of movement of the tread And a balustrade erected on the frame body at a position corresponding to the rail, and a moving handrail that is guided in the periphery of the balustrade and driven in synchronization with the tread plate, the frame body includes left and right side frame bodies, In a passenger conveyor having a plurality of cross girders connecting these left and right side frames, the side frame located in the intermediate inclined section of the frame is bent into a L-shaped cross section to form an upper chord part. A side frame unit having a lower side that becomes an upper side and a lower chord part, a connecting side that becomes a connecting part, and a side surface surrounded by the side frame unit is formed, and a vertical member fastened to the upper side, the lower side, and the side surface of the side frame unit is provided. The connecting side of the side frame unit is connected via a connecting member. Fastened to the side frame member positioned above the horizontal section and the lower horizontal section adjacent and passenger conveyor, characterized in that the longitudinal member of the left and right side frame coupled with the crossbeam.   A frame that is installed across the upper and lower floors of a building structure and has an upper horizontal section, an intermediate inclined section, and a lower horizontal section, a tread that is guided in the frame and connected endlessly, and both sides of the direction of movement of the tread And a balustrade erected on the frame body at a position corresponding to the rail, and a moving handrail that is guided in the periphery of the balustrade and driven in synchronization with the tread plate, the frame body includes left and right side frame bodies, In a passenger conveyor having a plurality of cross beams connecting these left and right side frames, the upper horizontal section and the lower horizontal section of the frame are constituted by a frame structure made of a mold material, and are positioned in an intermediate inclined section of the frame The side frame body is bent into a L-shaped cross section at the periphery of the steel plate to form a side frame unit having an upper side that becomes the upper chord portion, a lower side that becomes the lower chord portion, a connecting side that becomes the connecting portion, and a side surface surrounded by these And fasten to the top, bottom and side of this side frame unit The side frame unit is connected to the side frames located in the adjacent upper horizontal section and the lower horizontal section via the connection member, and the left and right side frame bodies are provided. A passenger conveyer characterized in that the vertical members are connected by the cross beams.   5. The passenger conveyor according to claim 3, wherein the upper horizontal section and the lower horizontal section of the frame body each have an inclined portion having the same inclination as the inclination of the intermediate inclined section. 5. The passenger conveyor according to claim 3, wherein the intermediate inclined section of the frame body is divided into a plurality in the longitudinal direction.   The connecting member includes an upper connecting member having a fastening surface fastened to the upper side, the connecting side, and the side surface of the side frame unit, and a fastening surface fastened to the lower side, the connecting side, and the side surface of the side frame unit. The passenger conveyor according to claim 1, wherein the passenger conveyor has a lower connecting member.   The passenger conveyor according to claim 1, 2, 3, or 4, wherein the connecting member has fastening surfaces fastened to four surfaces of an upper side, a connecting side, a lower side, and a side surface of the side frame unit.   The passenger conveyor according to any one of claims 1 to 8, wherein a plurality of holes are formed in a side surface of the side frame unit.   10. The passenger conveyor according to claim 9, wherein the hole is formed in a truss shape having a vertical surface portion and a slope portion between the upper chord portion and the lower chord portion, the hole being formed in a triangular shape.   The passenger conveyor according to claim 9 or 10, wherein the plurality of holes are formed at positions separated from the vertical member and the connecting member.

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