JP4557564B2 - Man conveyor guide rail - Google Patents

Description

  The present invention relates to a guide rail for a man conveyor.

  Man conveyors such as escalators and moving walkways have a plurality of steps connected endlessly by a step chain, and guide rails are provided in the circulation movement path of the steps to support and guide the front wheel rollers and rear wheel rollers of the steps. It is provided along. The guide rail for supporting and guiding the rear wheel roller includes a main body rail provided between a driving sprocket that drives the step chain and a driven sprocket, and a driving sprocket that is connected to the main body rail and serves as a folded portion of the rear wheel roller. Or it has the substantially U-shaped reversal rail which reverses the moving direction of a rear-wheel roller in the vicinity of a driven sprocket.

  Since the main body rail and the reversing rail are manufactured as separate members, when installing the man conveyor, it is necessary to attach the reversing rail to the main body rail at the installation site. In addition, the reversing rail is replaced and attached when the man conveyor is renewed or repaired.

  Conventionally, in order to attach the reversing rail to the main body rail, the reversing rail is moved to the attachment position, temporarily fixed, adjusted to a predetermined position, and then the connection end of the reversing rail and the main body rail is joined by welding. Later, the weld bead portion generated on the rolling surface of the step roller was ground with a grinder to obtain a flat rolling surface so that no step was generated at the weld joint.

  However, in the attachment of the reversal rail to the main body rail by such welding joining, the target dimensional accuracy may not be sufficiently obtained due to distortion caused by welding, etc., and time and labor may be required for dimensional adjustment.

  Moreover, since the amount of welding penetration varies depending on the skill and skill of the worker who performs the installation work, quality control is difficult, and sufficient reliability may not be ensured.

  Also, welding involves grinding the weld bead with a glider and smoothing the step roller rolling surface, so it is possible to allow some steps to be formed on the step roller rolling surface during welding. As a result, the grinding process may be performed more than necessary, and eventually the dimensional accuracy may be deteriorated.

  Also, when replacing the reversing rail at the site where the man conveyor is installed, when renewing the man conveyor or when the step chain extends beyond the adjustment range, cut the welded joint once. After removing the reversing rail and welding the connection portion again, it is necessary to grind the step roller rolling surface so as not to cause a step, so that the replacement work takes time and labor. In addition to installing and replacing the reversing rail itself, it is necessary to remove the reversing rail once when replacing the sprocket drive shaft and driven shaft. there were.

  Depending on the site, the welding machine may not be used due to the reason that a space necessary for welding cannot be obtained. In such a case, the main body rail is subjected to hole processing or screw processing, and the reversal rail is designed and attached to a shape that engages with the processed main body rail. However, such a rail requires a lot of on-site processing, and when the reverse rail is attached, a step is likely to occur on the rolling surface of the step roller. Therefore, when the step roller passes through the step, abnormal noise and vibration are generated, which causes a sense of discomfort to the user of the man conveyor.

  The present invention advantageously solves the above-described problems. A guide rail for a man conveyor that can easily and easily attach and remove the reversing rail and can be attached with high dimensional accuracy. The purpose is to propose.

The present invention supports a step roller of a plurality of steps that circulate endlessly, guides the step roller from one folded portion to the other folded portion, and is connected to the body rail at the folded portion. A support member that supports the step roller in a rollable manner and fastens and fixes the substantially U-shaped reversing rail that reverses the moving direction, and the main body rail and the reversing rail so that the end portions thereof face each other. And a plate-like connecting piece fixed to the support member so that one surface is a rolling surface that is the same as the rolling surface of the main body rail and the reversing rail, and is positioned between the ends, Bei give a, a connecting member having the end of said body rail the reversing rail, the are formed obliquely to the moving direction of the step roller, and the connecting piece, the two Side is Respectively a guide rail of the passenger conveyor, characterized that you have been formed in a substantially triangular shape that fits to the end of the body rail and the end of the inverted rail.

  The guide rail of the man conveyor according to the present invention is configured such that the main body rail and the reversing rail are not welded and joined as in the prior art, but are fastened and fixed by a bolt or the like using a connecting member. Therefore, the work of attaching and removing the reversing rail can be performed easily and in a short time, and the reversing rail can be attached with high accuracy. Moreover, since the connecting member for fastening and fixing the main body rail and the reverse rail has a rolling surface that is the same as the rolling surface of the step roller in the main body rail and the reverse rail, Since the step in the attachment portion can be reduced or eliminated, the user of the man conveyor does not feel uncomfortable.

  Hereinafter, the present invention will be described more specifically with reference to the drawings.

  FIG. 1 shows a first embodiment of a guide rail according to the present invention in a side view in the vicinity of a step sprocket (drive sprocket) on the drive side of a man conveyor. FIG. 2 is a front view of FIG.

  1 and 2, the man conveyor includes a plurality of steps 1 (see FIG. 1) connected endlessly by a step chain (not shown). The step chain connecting the step 1 is wound around the drive sprocket 2 attached to the drive shaft 2a and the driven sprocket 3 attached to the driven shaft 3a (see FIGS. 7 and 8), and is not shown on the drive sprocket 2. When the driving force is transmitted from the driving device, the step 1 circulates and moves through the step chain.

  The step 1 is provided with two step rollers on the front and rear sides. Of the step rollers, the front wheel roller 4 is connected to and driven by the step chain, and the rear wheel roller 6 moves following the front wheel roller 4.

  In order to support and guide the front wheel roller 4 and the rear wheel roller 6, guide rails 5 a, 5 b, 7 a, 7 b, 7 c, 7 d are provided along the circulation movement path of the step 1. That is, in order to support and guide the front wheel roller 4, the guide rail 5 a and the guide rail 5 b are provided between the driving sprocket 2 and the driven sprocket 3. Further, in order to support and guide the rear wheel roller 6, a pair of upper and lower body rails 7a and 7b and a pair of upper and lower body rails 7c and 7d disposed below the drive sprocket 2 and the driven sprocket, Is provided. Further, in the vicinity of the drive sprocket 2 that becomes the turning portion of the rear wheel roller 6, it is connected to the pair of upper and lower body rails 7 a, 7 b and the pair of upper and lower body rails 7 c, 7 d, so as to reverse the rear wheel roller 6. A character-shaped reversal rail 8a is provided. In addition, these guide rails are supported by the cross beam 9 of the truss through a fixture (not shown).

  Conventionally, the connection between the main body rails 7a, 7b, 7c and 7d constituting the guide rails of the rear wheel roller 6 and the reversing rail 8a has been joined by welding. In the first embodiment, the reversal with the main body rail 7a is performed. A connecting member 11a is arranged at the end of the butt with the rail 8a, and the main body rail 7a and the reverse rail 8a are connected and fixed by bolt fastening via the connecting member 11a. Similarly, a connecting member 11b is provided at the abutting end of the main body rail 7d and the reversing rail 8a, and the main body rail 7d and the reversing rail 8a are connected and fixed by bolt fastening via the connecting member 11b.

  The butt end portion of the main body rail 7d and the reversing rail 8a will be described more specifically with reference to FIGS. 3, 4, and 5. FIG. In addition, it cannot be overemphasized that it can be set as the same structure also in the butt | matching edge part of the main body rail 7a and the inversion rail 8a.

  3 is a plan view showing the vicinity of the abutting end of the main body rail 7d and the reversing rail 8a, FIG. 4 is a side view thereof, and FIG. 5 is a perspective view thereof.

  The connecting member 11b includes a connecting piece 12 disposed at a butt end of the main body rail 7d and the reversing rail 8a, and a support member 13 that supports the connecting piece 12 together with the main body rail 7d and the reversing rail 8a.

  The support member 13 has a side wall and a bottom wall and is L-shaped in cross section. The main body rail 7d is fastened and fixed by screws 16 on the side wall of the support member 13, and the main body rail 7d. The main body rail 7 d is fixed to the support member 13 by fastening the screw rod 18 projecting from the bottom surface thereof with a nut 19 through a through hole provided in the support member 13.

  Further, the support member 13 and the reversing rail 8a are joined in advance by welding. In addition to this welding joint, a screw rod is projected on the bottom surface of the reversing rail 8a, and the screw rod is passed through a through-hole provided in the bottom wall of the support member 13 and fastened with a nut, thereby reversing the rail 8a. Can also be fixed to the support member 13.

  The connection piece 12 of the connection member 11b has a substantially triangular plate shape, and its upper surface is a rolling surface 12a of the rear wheel roller 6, and the rolling surface 12a is supported by the support member 13 so that the rolling surface 12a is the main body rail 7d. And it has the same thickness as the bottom wall of the main body rail 7d and the reverse rail 8a so that it may become the same surface as the rolling surfaces 7da and 8aa of the step roller in the reverse rail 8a. A screw rod 12b is projected from the bottom surface of the connection piece 12. The screw rod 12b is passed through a through hole provided in the support member 13 and fastened with a nut 15 via a spacer 14. The connection piece 12 is fixed to the support member 13.

  With the configuration described above, the main body rail 7d and the reversing rail 8a are connected and fixed by bolt fastening via the connection member 11b. Further, the main body rail 7c provided above the main body rail 7d is connected and fixed to the reverse rail 8a by bolt fastening with the reverse rail mounting bolt 17 shown in FIG. Since the reverse rail 8a is fastened and fixed to the pair of upper and lower body rails 7c and 7d with bolts in this way, the work of attaching and removing the reverse rail 8a can be performed easily and in a short time compared to welding joining. In addition, the reversing rail 8a can be attached with high accuracy.

  3 to 5, the abutting ends of the main body rail 7d and the reversing rail 8a are respectively formed by obliquely cutting bottom walls 7da and 8aa which are rolling surfaces of the rear wheel roller 6, and a connecting member 11b. The connecting piece 12 has a substantially triangular shape in which the rolling surface 12a of the rear wheel roller 6 matches the cut end of the main body rail 7d and the reverse rail 8a. In this way, the main body rail 7d and the connecting piece 12 are connected at an oblique angle with respect to the rolling direction of the rear wheel roller 6 on the rolling surface of the rear wheel roller 6, and similarly connected to the reversing rail 8a. A configuration in which the piece 12 is connected to the rolling surface of the rear wheel roller 6 at an oblique angle with respect to the rolling direction of the rear wheel roller 6, that is, the main body rail and the reversing rail are connected to the step via the connecting member. Due to the structure that is continuously connected in the rolling raceway of the roller, when the rear wheel roller 6 passes through the abutting ends of the main body rail 7d and the reversing rail 8a, the rear wheel roller 6 is continuously on the same plane without a step. Will pass. Therefore, since no step is generated when the rear wheel roller 6 passes, it is possible to prevent the generation of abnormal noise and vibration. Even if a slight gap occurs between the main body rail 7d and the reverse rail 8a due to the balance between the oblique bottom wall cutting angle at the abutting ends of the main body rail 7d and the reverse rail 8a and the width of the rear wheel roller. No step occurs when the rear wheel roller 6 passes. Therefore, the alignment work at the time of attachment can be performed simply.

  The connecting piece 12 described above can be colored by painting or the like. By coloring the connecting piece in yellow or the like that attracts the operator's attention in this way, the distinguishability is improved and the work efficiency during maintenance is improved.

  When the reversing rail 8a is attached to the main body rails 7a, 7b and 7c, 7d, the reversing rail 8a needs to be attached so as to be parallel to the drive sprocket 2 so as to follow the trajectory along which the rear wheel roller 6 moves. However, the reversing rail 8 a has a substantially U shape, and it takes time and labor to adjust the reversing rail 8 a in parallel with the drive sprocket 2.

  Therefore, as shown in a schematic view including a cross section of the reversing rail in FIG. 6, the reversing rail 8a is arranged so that the adjusting bolt 21 comes into contact with the drive sprocket 2 through a through hole 22 formed in the side wall of the reversing rail 8a. The nut 23 is rotatably attached via a nut 23. Such adjustment bolts 21 are attached to the reversing rails 8a at three locations, and the distance between the reversing rails 8a and the driving sprockets 2 is adjusted by adjusting the lengths of the protruding portions from the reversing rails 8a to the driving sprockets 2 of the respective adjusting bolts 21. By attaching the reversing rail 8a to the main body rails 7a, 7b and 7c, 7d while maintaining the predetermined distance, it is possible to easily attach the reversing rail 8a to the drive sprocket 2 in parallel. The adjusting bolt 21 is removed from the reversing rail 8a after the reversing rail 8a is attached. FIG. 1 shows a state after the reversing rail 8a is attached to the main body rails 7a, 7b and 7c, 7d, that is, a state in which the adjusting bolt 21 is removed and the through-hole 22 is exposed by removing the reversing rail 8a. However, when the adjustment bolt 21 has a length that does not interfere with the rear wheel roller 6, the man conveyor can be operated while the adjustment bolt 21 is attached to the reverse rail 8a.

  Next, a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 7 is a front view of the vicinity of a stepped sprocket (driven sprocket) on the driven side of the man conveyor, and FIG. 8 is a side view of FIG. The same members as those in FIGS. 1 to 6 are denoted by the same reference numerals.

  Even in the vicinity of the driven sprocket 3, guide rails 5 a, 5 b, 5 c, 7 a, 7 b, 7 c, 7 d are provided along the circulation movement path of the step 1 in order to support and guide the front wheel roller 4 and the rear wheel roller 6 of the step 1. Provided. That is, in order to support and guide the front wheel roller 4, the guide rail 5 a and the guide rails 5 b and 5 c are provided between the drive sprocket 2 and the driven sprocket 3. Further, in order to support and guide the rear wheel roller 6, a pair of upper and lower body rails 7a and 7b and a pair of upper and lower body rails 7c and 7d arranged below the drive sprocket 2 and the driven sprocket 3 are provided. And are provided. Further, in the vicinity of the driven sprocket 3 which is one folded portion of the rear wheel roller 6, it is connected to the upper and lower set of main body rails 7 a and 7 b and the upper and lower set of main body rails 7 c and 7 d to reverse the rear wheel roller 6. A substantially U-shaped inversion rail 8b is provided. In addition, these guide rails are supported by the cross beam 9 of the truss via a fixture (not shown).

  In the second embodiment, a connecting member 11c is arranged at the upper end of the main body rail 7a and the reversing rail 8b, and the main body rail 7a and the reversing rail 8b are fastened by bolting via the connecting member 11c. Fix the connection. Similarly, a connecting member 11d is provided at the abutting end of the main body rail 7d and the reversing rail 8b, and the main body rail 7d and the reversing rail 8b are connected and fixed by bolt fastening via the connecting member 11d.

  The butt end portion of the main body rail 7d and the reversing rail 8b will be described more specifically with reference to FIGS. In addition, it cannot be overemphasized that it can be set as the same structure also in the butt | matching edge part of the main body rail 7a and the inversion rail 8b.

  FIG. 9 is a plan view showing the vicinity of the butting end portion of the main body rail 7d and the reversing rail 8b, and FIG. 10 is a side view thereof. The same members as those in FIGS. 3 and 4 are denoted by the same reference numerals, and description thereof is omitted.

  In FIG. 9 and FIG. 10, the connecting member 11d includes a connecting piece 22 disposed at a butt end of the main body rail 7d and the reversing rail 8b, and a support material that supports the connecting piece 22 together with the main body rail 7d and the reversing rail 8b. 13. The connecting piece 22 has a substantially rectangular plate shape, and its upper surface is used as a rolling surface 22a of the rear wheel roller 6, and the rolling surface 22a is supported on the main body rail 7d and the reversing rail 8b while being supported by the support member 13. It has the same thickness as the bottom walls of the main body rail 7d and the reversing rail 8b so as to be flush with the rolling surfaces 7da, 8ba of the step rollers. Then, a screw rod 22b is projected from the bottom surface of the connection piece 22, and the screw rod 22b is passed through a through hole provided in the support member 13 and fastened with a nut 15 via a spacer 14. The connection piece 22 is fixed to the support member 13. The connection piece 22 can be colored by painting or the like.

  With the configuration described above, the main body rail 7d and the reversing rail 8b are connected and fixed by bolt fastening via the connecting member 11d. Further, the main body rail 7c provided above the main body rail 7d is connected and fixed to the reverse rail 8b by bolt fastening with the reverse rail mounting bolt 17 shown in FIG. Thus, since the reverse rail 8a is fastened and fixed to the pair of upper and lower body rails 7c, 7d by bolts, the work of attaching and removing the reverse rail 8a is compared to welding joining as in the first embodiment. It can be performed easily and in a short time, and the reversal rail 8a can be attached with high accuracy.

  9 and 10, the butted ends of the main body rail 7d and the reversing rail 8b are cut so as to be partially cut off at the bottom walls 7da and 8ba which are rolling portions of the rear wheel roller 6, respectively. The connecting piece 22 of the connecting member 11d has a shape in which the rolling surface 22a of the rear wheel roller 6 fits the cut-out portions of the main body rail 7d and the reverse rail 8b. In this way, the main body rail 7d and the connection piece 22 are connected so as to be always in contact with the rear wheel roller 6 on the same plane in the moving track of the rear wheel roller 6, and similarly, the reverse rail 8b and the connection piece 22 are connected to each other. However, the configuration is such that the rear wheel roller 6 is always connected so as to be in contact with the rear wheel roller 6 on the same plane in the moving track of the rear wheel roller 6. With such a configuration, as in the first embodiment, when the rear wheel roller 6 passes through the abutting ends of the main body rail 7d and the reverse rail 8b, the rear wheel roller 6 continuously passes on the same plane. Will do. Therefore, since no step is generated when the rear wheel roller 6 passes, it is possible to prevent the generation of abnormal noise and vibration.

  Furthermore, in the second embodiment, a hole for fastening and fixing the main body rail 7d and the support member 13 is formed in the side wall of the main body rail 7d in a direction that expands or contracts the distance between the main body rail 7d and the reversing rail 8b. It is formed in an oval shape extending in the direction. The interval between the main body rail and the reversing rail can be adjusted by passing the shaft portion of the screw 16 through the oval hole and fastening and fixing it. Therefore, even when the step chain is extended, the distance between the main body rail and the reverse rail can be adjusted in accordance with the extension allowance of the step chain. The oval hole is not limited to the case where it is provided in the illustrated main body rail 7d, and can be provided, for example, in the bottom wall of the support member 13 in order to fasten and fix the support member 13 and the reverse rail 8b.

  When the reversing rail 8b is attached to the main body rail 7d, the adjusting bolt 21 is brought into contact with the driven sprocket 3 through the through hole 22 formed in the side wall of the reversing rail 8b, as in the first embodiment shown in FIG. As described above, the reversing rail 8b can be easily mounted in parallel to the driven sprocket 3 by being rotatably attached to the reversing rail 8b via the nut 23.

It is a side view of the vicinity of the step sprocket on the drive side of the man conveyor. It is a front view of the vicinity of the step sprocket on the drive side of the man conveyor. It is a top view which shows the butt | matching edge part vicinity of a main body rail and an inversion rail. It is a front view which shows the butt end part vicinity of a main body rail and an inversion rail. It is a perspective view which shows the butt | matching edge part vicinity of a main body rail and an inversion rail. It is a schematic diagram including the cross section of an inversion rail. It is a front view of the vicinity of the step sprocket on the driven side of the man conveyor. It is a side view of the vicinity of the step sprocket on the driven side of the man conveyor. It is a top view which shows the butt | matching edge part vicinity of a main body rail and an inversion rail. It is a front view which shows the butt end part vicinity of a main body rail and an inversion rail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Step 2 Drive sprocket 3 Driven sprocket 4 Front wheel roller 5a, 5b, 5c Guide rail 6 Rear wheel roller 7a, 7b, 7c, 7d Main body rail 8a, 8b Reverse rail 11a, 11b, 11c, 11d Connection member 12 Connection piece 13 Support Material 22 Connection piece 21 Adjustment bolt

Claims (5)

A body rail that supports the step rollers of a plurality of steps that circulate endlessly and guides the step rollers from one folded portion to the other folded portion;
A substantially U-shaped reversing rail that is connected to the main body rail in the folded portion and supports the step roller in a rollable manner and reverses the moving direction;
A supporting member for fastening and fixing the said inverted rail and the body rail such that butted respective end portions, is the rolling surface of one side becomes the rolling surface and the same surface of the body rail and the inverted rail a connecting member having a plate-shaped connecting piece fixed to said support member so as to be positioned between each of said end portions, Bei give a,
The end portions of the main body rail and the reversing rail are formed obliquely with respect to the moving direction of the step roller, and the connecting piece has two sides each of the end portions of the main body rail. the inverting said end portion and a passenger conveyor of the guide rail, characterized that you have been formed in a substantially triangular shape that fits in the rail with.   The guide rail of the man conveyor according to claim 1, wherein the connecting member is colored.   The adjusting bolt for abutting a sprocket provided on a folding support portion of the step roller to adjust the distance between the sprocket and the reversing rail to a predetermined distance is attached to the reversing rail. Item 3. A guide rail for a man conveyor according to item 1 or 2.   The guide rail of the man conveyor according to claim 1, 2 or 3, wherein the main body rail and the reversing rail are fastened and fixed to the connecting member so that an interval in a moving direction of the steps can be adjusted. The guide rail of the man conveyor according to claim 1, wherein the support member is integrated with the reversing rail in advance and is detachably fastened to the main body rail.

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