Motor position adjustment method and swivel adjustment support device

Abstract

To easily and highly accurately adjust the positional accuracy of a motor relative to a reducer.SOLUTION: A bolt head is inserted into a linear groove provided on an upper surface (a top plate 201b) of a reduction gear (an escalator reduction gear 117), and a shaft portion of the bolt is made to stand upright from the upper surface (the top plate 201b). With a through-hole formed in a leg portion 204 of a motor 104 so as to penetrate in a vertical direction being penetrated by the shaft portion of the bolt, the motor 104 is placed on the upper surface of the reduction gear. A nut is threaded onto the bolt to temporarily fix the motor 104 to the reduction gear. An adjustment bolt 801, which is threaded into a screw hole penetrating in a direction intersecting the longitudinal direction of the groove with its position fixed relative to the reduction gear, is brought into abutment with the leg portion 204 of the motor. By tightening the adjustment bolt 801, swivel adjustment of the motor 104 relative to the reduction gear is performed.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to a method for adjusting the position of a motor connected to a reducer of an escalator, and a swivel adjustment assistance device used for adjusting the position of the motor. [Background technology]

[0002] Escalators use the driving force of a motor to move the steps up and down in a circular motion. An escalator reducer is installed between the motor and the steps to reduce the rotational speed of the motor and increase the output torque.

[0003] The escalator reducer has a rotating shaft (input shaft) that is connected to the output shaft of the motor and receives the rotation of the motor, and an output shaft that is connected to the steps via a step chain.When installing the motor, the motor is positioned so that the axis of the output shaft of the motor is parallel to the axis of the rotating shaft (input shaft) of the escalator reducer, and its position relative to the escalator reducer is fixed.

[0004] A related art technique has hitherto been proposed, specifically, for example, in which a pulley is attached to at least one of the shaft couplings that connects a motor and a gear reducer input shaft (the input shaft of an escalator reducer), and a flywheel arranged approximately parallel to the motor is driven by the pulley (see, for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 57-209185 Summary of the Invention [Problem to be solved by the invention]

[0006] However, conventional technologies including the above-mentioned Patent Document 1 have the problem that it is difficult to position the motor so that the axis of the motor's output shaft and the axis of the escalator reducer's rotating shaft (input shaft) are precisely parallel. Specifically, because it is difficult to fine-tune the position of a motor that has a certain amount of weight on the escalator reducer, there is a problem that it is difficult to position the motor so that the axis of the motor's output shaft and the axis of the escalator reducer's rotating shaft (input shaft) are precisely parallel.

[0007] In order to solve the problems of the conventional technology described above, an object of the present invention is to provide a motor position adjustment method and a swivel adjustment assistance device that can easily and highly accurately adjust the positional accuracy of a motor relative to a reducer. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems and achieve the object, the motor position adjustment method of the present invention is characterized by including the steps of: inserting the head of a bolt into a linear groove provided on the top surface of a reducer and having at least one open end, and causing the shank of the bolt to stand up from the top surface; placing the motor on the top surface of the reducer with the shank of the bolt passing through a through-hole provided in the leg of the motor and passing through in the vertical direction; screwing a nut onto the bolt to temporarily fix the motor to the reducer; and abutting the tip of an adjustment bolt, whose position relative to the reducer is fixed and which is threaded into a screw hole passing through in a direction intersecting the length of the groove, against the leg of the motor, and tightening the adjustment bolt to perform swivel adjustment of the motor relative to the reducer.

[0009] In addition, the swivel adjustment assistance device of the present invention is characterized by comprising a support member fixed to a reducer having a linear groove with at least one open end on its top surface, the support member having a screw hole that passes through in a direction intersecting the longitudinal direction of the groove, and an adjustment screw that is screwed into the screw hole so as to pass through the support member. [Effects of the Invention]

[0010] The motor position adjustment method and swivel adjustment support device according to the present invention have the advantage of being able to easily and highly accurately adjust the positional accuracy of the motor relative to the reducer. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is an explanatory diagram showing an example of an escalator equipped with an escalator reducer according to an embodiment of the present invention. [Figure 2] FIG. 2 is an explanatory diagram showing the positional relationship between a motor and an escalator reducer. [Figure 3] FIG. 1 is an explanatory diagram (part 1) showing an example of the structure of an escalator reducer. [Figure 4] FIG. 2 is an explanatory diagram (part 2) showing an example of the structure of an escalator reducer. [Figure 5] FIG. 3 is an explanatory diagram (part 3) showing an example of the structure of an escalator reducer. [Figure 6] FIG. 4 is an explanatory diagram (part 4) showing an example of the structure of an escalator reducer. [Figure 7] 1 is an explanatory diagram (part 1) showing an example of a swivel adjustment assist device according to an embodiment of the present invention; [Figure 8] FIG. 2 is an explanatory diagram (part 2) showing an example of the swivel adjustment assist device according to the embodiment of the present invention. [Figure 9] 1 is an explanatory diagram (part 1) showing an example of a motor position adjustment procedure according to a motor position adjustment method of an embodiment of the present invention; [Figure 10] 10 is an explanatory diagram (part 2) showing an example of a motor position adjustment procedure according to the motor position adjustment method of the embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] A preferred embodiment of a speed reducer according to the present invention will be described in detail below with reference to the accompanying drawings. In this embodiment, an example in which the speed reducer according to the present invention is realized as an escalator speed reducer used in an escalator will be described.

[0013] In this embodiment, the escalator is realized by a device that uses power to transport people or goods. Specifically, the escalator according to this embodiment can be realized by, for example, a device in which steps (treads) move cyclically and ascend and descend using the power of a motor. The steps may be composed of a plurality of steps, or may be composed of a series of belt-like members such as an endless belt, without being limited to being composed of a plurality of steps.

[0014] More specifically, the escalator according to the present invention can be realized, for example, by a device that uses a motor to circulate a plurality of stair-like steps (treads) and raise and lower them. Furthermore, the escalator according to the present invention can be realized, for example, by a device called a "moving walkway" or "horizontal escalator" that uses a motor to circulate steps (belt-like members) that are arranged horizontally rather than in a stair-like manner. Furthermore, the escalator according to the present invention can be realized, for example, by a device called an "autoslope" that uses a motor to circulate steps (belt-like members) that are arranged on an inclined surface inclined relative to the horizontal direction.

[0015] In the following, in this embodiment, an example will be described in which the escalator is applied to a device in which a plurality of staircase-like steps (treads) are circulated and raised and lowered using the power of a motor.

[0016] (Example of an escalator) First, an example of an escalator equipped with an escalator reducer according to an embodiment of the present invention will be described. Fig. 1 is an explanatory diagram showing an example of an escalator equipped with an escalator reducer according to an embodiment of the present invention.

[0017] As shown in Fig. 1, escalator 100 includes a frame 101 installed on a skeleton (not shown). Frame 101 is made of a steel frame or the like. For example, in the case of escalator 100 installed between floors of different heights as shown in Fig. 1, frame 101 spans two floors, upper floor 102 and lower floor 103 (floor beams of each floor 102, 103).

[0018] The frame body 101 is composed of an upper portion 101a provided under the floor of the upper floor 102, a lower portion 101b provided under the floor of the lower floor 103, and a middle portion 101c provided between the upper portion 101a and the lower portion 101b. The middle portion 101c is provided in a state inclined at a predetermined angle between the upper portion 101a and the lower portion 101b. In this embodiment, the direction along the inclination of the middle portion 101c in the frame body (the direction in which the upper portion 101a, middle portion 101c, and lower portion 101b are arranged) will be described as the "length direction," and the direction perpendicular to the length direction will be described as the "width direction."

[0019] In the frame 101, an upper portion 101a and a lower portion 101b are each made into a machine room. The machine room in the upper portion 101a contains, for example, a control panel that controls the drive of each portion of the escalator 100, a drive mechanism including a motor 104 that is driven and controlled by the control panel, and a drive sprocket 105 to which the power of the motor 104 is transmitted. The machine room in the lower portion 101b contains structures related to the operation of the escalator 100, such as a driven sprocket 106 and a mechanism that supports the driven sprocket 106.

[0020] An upper boarding and alighting plate 107 is provided on the upper end surface of the upper portion 101a, i.e., on the same surface as the floor surface of the upper floor 102. The upper boarding and alighting plate 107 releasably closes the upper portion 101a (the machine room located below the floor surface of the upper floor 102). A lower boarding and alighting plate 108 is provided on the upper end surface of the lower portion 101b, i.e., on the same surface as the floor surface of the lower floor 103. The lower boarding and alighting plate 108 releasably closes the lower portion 101b (the machine room located below the floor surface of the lower floor 103).

[0021] The upper and lower boards 107 and 108 are removed to open the respective machine rooms during maintenance of the escalator 100. Furthermore, the upper and lower boards 107 and 108 are used as passageways for users of the escalator 100 when the escalator 100 is in operation.

[0022] A balustrade 109 is provided on the upper side of the frame 101. The balustrade 109 can be made of, for example, tempered glass or stainless steel. An endless (loop) handrail (handrail belt) 110 is provided on the balustrade 109. The handrail 110 is provided along the end face of the balustrade 109 so as to be slidable along the length of the escalator 100.

[0023] The escalator 100 includes a plurality of steps 111. Each of the steps 111 includes a tread 111a and a riser 111b. The tread 111a is flat, and the riser 111b is gently curved. The dimensions of the tread 111a and the riser 111b in the width direction are equal. The dimension of the tread 111a in a direction perpendicular to the width direction (the tread surface dimension of the tread 111a) and the dimension of the riser 111b in a direction perpendicular to the width direction (the height dimension of the riser 111b) may be the same or different. The tread 111a and the riser 111b are connected to each other along one side in the width direction, making the dimensions equal.

[0024] Each of the steps 111 is equipped with a drive roller 112 and a driven roller 113. The drive roller 112 and the driven roller 113 are rotatably attached to a bracket 111c that is suspended between the tread 111a and the riser 111b. The bracket 111c connects the tread 111a and the riser 111b, ensuring the strength of the step 111. This makes it possible to support the load exerted by users of the escalator 100 and ensure the safety of users.

[0025] The drive roller 112 and the driven roller 113 are provided at both ends in the width direction of the step 111. Of these, the drive roller 112 is provided at a position near the end opposite the connection position between the step 111a and the riser 111b in the direction perpendicular to the width direction of the step. The driven roller 113 is provided at a position near the end opposite the connection position between the step 111a and the riser 111b in the height direction of the riser 111b.

[0026] An endless drive roller guide rail 114 is provided on each side of the plurality of steps 111 in the width direction. The drive rollers 112 are each provided so that their outer peripheral surfaces abut against the drive roller guide rails 114. Furthermore, an endless driven roller guide rail 115 is provided on each side of the plurality of steps 111 in the width direction. The driven rollers 113 are each provided so that their outer peripheral surfaces abut against the driven roller guide rails 115.

[0027] The drive roller guide rail 114 and the driven roller guide rail 115 are arranged so as to trace different tracks, and the drive roller guide rail 114 and the driven roller guide rail 115 are arranged so that their tracks do not intersect.

[0028] The drive rollers 112 provided on each of the multiple steps 111 are each connected to an endless step chain 116. The step chain 116 is stretched over a drive sprocket 105 and a driven sprocket 106. The drive sprocket 105 and the driven sprocket 106 are fixed in position and rotate at fixed positions.

[0029] The drive sprocket 105 is connected to the output shaft of the escalator reducer 117 (see Figures 2 to 4). The drive sprocket 105 rotates upon receiving drive torque transmitted from the motor 104 via the escalator reducer 117. As the drive sprocket 105 rotates, the step chain rotates while stretched between the drive sprocket 105 and the driven sprocket 106, rotating the driven sprocket 106 along with the drive sprocket 105.

[0030] As the step chain 116 rotates, the drive roller 112 and the driven roller 113 rotate while in contact with the drive roller guide rail 114 and the driven roller guide rail 115, respectively, and roll along the guide rails 114, 115. As a result, the multiple steps 111 move diagonally upward in the vertical direction or diagonally downward in the vertical direction as the step chain 116 rotates.

[0031] When the steps 111 move, the drive rollers 112 and driven rollers 113 roll while in contact with the drive roller guide rails 114 and driven roller guide rails 115, respectively, which allows the steps 111 to form steps, the steps 111 (treads 111a) to be flat, or the steps 111 to be moved upside down.

[0032] The above-mentioned handrail 110 is driven by a handrail drive device 118 to move in the same direction (lengthwise direction) as the movement of the plurality of steps 111, in a circular motion synchronized with the movement of the plurality of steps 111. The handrail drive device 118 is connected to the drive sprocket 105 via a transmission mechanism such as a handrail chain or gears (not shown). As a result, the handrail 110 moves in a circular motion synchronized with the movement of the plurality of steps 111 as the drive sprocket 105 rotates.

[0033] The handrails 110 move circulatingly in synchronization with the movement of the steps 111, allowing users of the escalator 100 to move while holding onto the handrails 110 and standing on the steps 111. The escalator 100 allows users to move while holding onto the handrails 110, ensuring the safety of the users.

[0034] (Positional relationship between motor 104 and escalator reducer 117) Next, we will explain the positional relationship between motor 104 and escalator reducer 117. Figure 2 is an explanatory diagram showing the positional relationship between motor 104 and escalator reducer 117. Figure 2 shows motor 104 and escalator reducer 117 as viewed from the front.

[0035] As shown in Figure 2, escalator reducer 117 includes housing 201. Housing 201 is hollow, and the hollow portion contains lubricating oil. Housing 201 is made up of a roughly box-shaped main body 201a that includes a recess for containing lubricating oil, and a top plate 201b that closes the opening of main body 201a.

[0036] Escalator reducer 117 includes input shaft 202, output shaft 203, and brake shaft (not shown). Ends of input shaft 202 and output shaft 203 in the length direction protrude outside housing 201 through through holes that are provided in a wall surface of housing 201 (main body 201a) and penetrate the wall surface. Ends of the brake shaft in the length direction protrude outside housing 201 through a through hole (not shown) that is provided in a wall surface (not shown) on the opposite side (back side) from the wall surface from which input shaft 202 and output shaft 203 protrude.

[0037] An oil seal (not shown) is provided around each of the through holes that allow the input shaft 202, output shaft 203, and brake shaft to protrude to the outside of the housing 201. This prevents the lubricating oil inside the housing 201 from leaking out of the housing 201 through a gap between the output shaft 203 and the output shaft through hole.

[0038] A pulley (not shown) is provided on a portion of the input shaft 202 located outside the housing 201. The pulley rotates around the axis of the input shaft 202 in conjunction with the input shaft 202. An endless belt (not shown) wound around the output shaft of the motor 104 is stretched over the pulley. This causes the input shaft 202 to rotate in conjunction with the rotation of the motor 104 (the output shaft of the motor 104).

[0039] A power output sprocket (not shown) is provided on a portion of the output shaft 203 located outside the housing 201. The power output sprocket rotates in conjunction with the output shaft 203, centering on the axis of the output shaft 203. The step chain 116 described above is stretched over the power output sprocket. This allows the step chain 116 to rotate as the output shaft 203 rotates.

[0040] In this embodiment, the input shaft 202 and the brake shaft are integrated. The input shaft 202 and the brake shaft in this embodiment are realized by both ends of an integrated shaft. The brake shaft is connected to a brake (not shown) on the outside of the housing 201.

[0041] The brake may be, for example, an electromagnetic brake. An electromagnetic brake controls the rotation of a brake shaft (an integral shaft) using electromagnetic force generated by energizing a coil. The electromagnetic brake may be, for example, an electromagnetic brake of an excitation operation type that operates when energized, or an electromagnetic brake of a non-excitation operation type that operates when de-energized.

[0042] The output shaft 203 is connected to the input shaft 202 (an integral shaft) inside the housing 201 via a gear train (not shown) provided inside the housing 201. As a result, the rotation of the input shaft 202 is transmitted to the output shaft 203, and the output shaft 203 rotates in conjunction with the rotation of the input shaft 202. The rotation of the input shaft 202 is transmitted to the output shaft 203 via the gear train with the number of rotations (rotational speed) reduced and the torque increased. As a result, the step 111 can be circulated using the driving force of the motor 104.

[0043] Motor 104 is installed above the top plate of escalator reducer 117. Motor 104 is connected to escalator reducer 117 using multiple sets of bolts (see reference numeral 301 in FIG. 3) and nuts (not shown). The position of motor 104 relative to escalator reducer 117 can be adjusted left and right when viewed from the front.

[0044] The motor 104 has legs 204. In this embodiment, three legs 204 are provided on each of the left and right sides of the front and rear sides of the motor 104. The motor 104 has a total of six legs 204. Each leg 204 has a through-hole (not shown) that passes through the leg 204 in the vertical direction. The through-hole has an opening diameter large enough to accommodate the shank of a bolt (see reference numeral 801a in FIG. 8) that secures the motor 104 to the escalator reducer 117.

[0045] (Structure of the top plate 201b of the escalator reducer 117) Next, we will explain the structure of top plate 201b of escalator reducer 117. Figures 3 to 6 are explanatory diagrams showing an example of the structure of escalator reducer 117. Figure 2 shows the portion that becomes top plate 201b of escalator reducer 117.

[0046] Fig. 3 shows the top plate (top surface) 201b of escalator reducer 117 as viewed from above in the vertical direction with escalator reducer 117 installed. Fig. 4 shows a view as seen from arrow A in Fig. 3. Fig. 5 shows a view as seen from arrow B in Fig. 3. Fig. 6 shows a view as seen from arrow C in Fig. 3.

[0047] As shown in Figures 3 and 4, linear grooves 301 are provided in top plate 201b of escalator reducer 117. In this embodiment, six grooves 301 are provided in the top plate of the escalator reducer. Each of the six grooves 301 is open at one end in the length direction, facing the end face of the top plate (end faces excluding the front and rear end faces).

[0048] Three of the six grooves 301 (301a) are arranged adjacent to each other in parallel along the width direction of the groove 301 (301a). Similarly, another three of the six grooves 301 (301b) are arranged adjacent to each other in parallel along the width direction of the groove 301 (301b). The three grooves 301 (301a) arranged adjacent to each other in parallel along the width direction of the groove 301 (301a) are each arranged adjacent to (opposing) the other three grooves 301 (301b) along the length direction. As a result, the grooves 301 (grooves 301a and grooves 301b) arranged adjacent to each other (opposing) along the length direction are provided on a straight line.

[0049] In this embodiment, two grooves 301 (groove 301a and groove 301b) arranged adjacent (opposite) positions along the length direction are arranged in a straight line, but this is not limited thereto, and a single linear groove 301 may be used without being divided along the way. Also, in this embodiment, three grooves 301 (groove 301a and groove 301b) arranged adjacent to each other in parallel along the width direction of groove 301 are arranged adjacent (opposite) positions along the length direction, but this is not limited thereto, and it is sufficient that the length directions of grooves 301 are aligned (parallel).

[0050] The opening width of groove 301 is equal to or greater than the diameter of shaft 401a of bolt 401 used to connect motor 104 to escalator reducer 117, but smaller (narrower) than the diameter of head 401b of bolt 401. Groove 301 is formed so that the cross-sectional shape perpendicular to the longitudinal direction is wider at the bottom side than at the opening directly facing the bottom. The width of the wider portion is larger (wider) than the diameter of head 401b of bolt 401 used to connect motor 104 to escalator reducer 117. In addition, the depth of the wider portion is equal to or greater than the thickness of head 401b of bolt 401, but smaller than the diameter of head 401b of bolt 401.

[0051] 3 and other figures, a through hole for a bolt 302 that fixes the top plate 201b to the main body 201a is provided on the top surface of the top plate 201b. The through hole for the bolt 302 penetrates the top plate 201b in the plate thickness direction. In the main body 201a, a bolt hole (not shown) for fixing the top plate is provided at a position opposite the through hole for the bolt 302.

[0052] 5 and 6, a plurality of bolt holes 501 are provided on each side surface (the end surface on the front side and the end surface on the rear side) of top plate 201b. The plurality of bolt holes 501 are arranged at predetermined intervals along the longitudinal direction of groove 301 in portions of the side surface (the end surface on the front side and the end surface on the rear side) of top plate 201b that correspond to groove 301. Each of the plurality of bolt holes 501 has a female thread provided on its inner circumferential surface.

[0053] (An example of a swivel adjustment support device) Next, an example of a swivel adjustment support device according to an embodiment of the present invention will be described. Figures 7 and 8 are explanatory diagrams showing an example of a swivel adjustment support device according to an embodiment of the present invention. Figures 7(a) and 7(b) show the swivel adjustment support device according to an embodiment of the present invention as viewed from the front. Figure 8 shows the swivel adjustment support device according to an embodiment of the present invention (corresponding to Figure 7(b)).

[0054] As shown in Figures 7 and 8, swivel adjustment assistance device 700 according to an embodiment of the present invention includes support member 701 and adjustment screw 801. Support member 701 is plate-shaped. Support member 701 can be formed, for example, by casting or forging steel. Support member 701 is shaped according to the mounting position of escalator reducer 117 relative to top plate 201b during the position adjustment work of motor 104, which will be described later, but both support members are plate-shaped.

[0055] The support member 701 is provided with a screw hole 701a into which an adjustment screw 801 is screwed. The screw hole 701a penetrates the support member 701 from the front side to the rear side, and has a female thread on its inner circumferential surface. The support member 701 is also provided with a fixing screw hole 802. The fixing screw hole 802 is provided on the same surface as the screw hole 701a in the support member 701. The fixing screw hole 802 penetrates the support member 701 from the front side to the rear side. One fixing screw hole 802 is provided on each side of the screw hole 701a. The spacing between the fixing screw holes 802 is the same as the predetermined spacing between the bolt holes 501 provided on the side of the top plate 201b.

[0056] Fixing screws 702 that fix the support member 701 to the top plate 201b are threaded into the fixing screw holes 802. For example, hexagon socket head cap screws can be used as the fixing screws 702. By fixing the support member 701 to the top plate 201b at two locations using two fixing screws 702, the position of the support member 701 can be reliably fixed, and therefore, when adjusting the position of the motor 104, which will be described later, the swivel adjustment of the motor 104 can be reliably performed.

[0057] The adjustment screw 801 is threaded through the screw hole 701a. For example, a hexagonal bolt can be used as the adjustment screw 801. The shaft 801a of the adjustment screw 801 is long enough to penetrate the support member 701 and to abut the bolt 401, whose tip penetrates the leg 204 of the motor 104.

[0058] (An example of a procedure for adjusting the position of the motor 104) Next, an example of a procedure for adjusting the position of the motor 104 using the motor position adjusting method according to the embodiment of the present invention will be described. Figures 9 and 10 are explanatory diagrams showing an example of a procedure for adjusting the position of the motor 104 using the motor position adjusting method according to the embodiment of the present invention.

[0059] When adjusting the position of the motor 104, first, from an open position at one end in the longitudinal direction of the groove 301, the shank of the bolt 401 is slid into the groove 301 with the head 401b facing vertically downward so that it protrudes from the groove 301. This operation is performed for all grooves 301 (six locations in this embodiment).

[0060] Because the opening width of groove 301 is equal to or greater than the diameter of the shank of bolt 401 and smaller (narrower) than the diameter of the head of bolt 401, bolt 401 can be erected with the head positioned within groove 301 and the shank protruding above top plate 201b through the opening of groove 301. In addition, because the depth of the widened portion of groove 301 is smaller than the diameter of the head of bolt 401, bolt 401 can be maintained in an erect state within groove 301 without tipping over.

[0061] Next, motor 104 is placed on top plate 201b of escalator reducer 117 while adjusting the position of bolt 401 relative to motor 104 within groove 301 so that shank 401a of bolt 401 inserted into groove 301 passes through the through-hole of leg 204 from bottom to top. This allows the "step of placing a motor on the top surface (top plate 201b) of an escalator reducer" according to the present invention to be achieved.

[0062] Next, nuts are screwed onto the bolts 401 that have been inserted through the through-holes in the leg portions 204. At this time, the nuts are not tightened completely, but are screwed in with just enough force to allow them to be loosened by hand. In this way, the leg portions 204 are fixed by the bolts 401 and the nuts, and the "step of temporarily fixing a motor to an escalator reducer" according to the present invention can be achieved.

[0063] Next, swivel adjustment support device 700 is attached to the side surfaces (front end surface and rear end surface) of top plate 201b of escalator reducer 117. Swivel adjustment support device 700 is attached by threading fixing screws 702 through fixing screw holes 802 into two of bolt holes 501 provided on the side surface of top plate 201b.

[0064] The swivel adjustment support device 700 is attached at a position where the tip of the adjusting screw 801 threaded through the screw hole 701a can abut against the leg 204 of the motor 104 (or the shaft of the adjusting screw 801). In this case, the swivel adjustment support device 700 is preferably attached at a position where the tip of at least one of the adjusting screws 801 threaded through the screw hole 701a, that of the swivel adjustment support device 700 attached to the end face on the front side of the tabletop 201b and that of the swivel adjustment support device 700 attached to the end face on the back side of the tabletop 201b, can abut against the leg 204 of the motor 104 (or the shaft of the adjusting screw 801).

[0065] The size of the motor 104 differs depending on, for example, the capacity of the motor 104. For this reason, the swivel adjustment support device 700 selects and attaches a bolt hole 501 from among the multiple bolt holes 501 provided on the side surface of the top plate 201b according to the size of the motor 104, such that the tip of the adjustment screw 801 comes into contact with the leg 204 of the motor 104 (or the shaft of the adjustment screw 801).

[0066] For example, as shown in Fig. 9, swivel adjustment assistance device 700 is attached to the escalator reducer 117 in positions facing each other across top plate 201b. Swivel adjustment assistance device 700 may be attached before the "step of temporarily fixing the motor to the escalator reducer." In other words, it may be attached before motor 104 is placed on top plate 201b of escalator reducer 117, or before bolt 401 is slid and inserted into groove 301.

[0067] Then, the swivel of motor 104 relative to escalator reducer 117 is adjusted by tightening or loosening adjustment screw 801 of swivel adjustment support device 700 attached to the front end surface of tabletop 201b and adjustment screw 801 of swivel adjustment support device 700 attached to the rear end surface of tabletop 201b. This makes it possible to realize the "step of adjusting the swivel of the motor relative to the reducer" according to the present invention.

[0068] Specifically, for example, when the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700a) attached to the front end surface of the tabletop 201b is brought into contact with the leg 204 of the motor 104 and the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700b) attached to the back end surface of the tabletop 201b is moved away from the leg 204 of the motor 104, and then the adjustment screw 801 of the swivel adjustment support device 700 (700a) is tightened, the motor 104 moves in the direction of the arrow indicated by X in Figure 9.

[0069] Furthermore, specifically, for example, when the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700c) attached to the rear end face of the tabletop 201b is brought into contact with the leg 204 of the motor 104 and the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700d) attached to the front end face of the tabletop 201b is moved away from the leg 204 of the motor 104, and then the adjustment screw 801 of the swivel adjustment support device 700 (700c) is tightened, the motor 104 moves in the direction of the arrow indicated by X in Figure 9.

[0070] Furthermore, specifically, for example, when the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700a) attached to the front end surface of the tabletop 201b is moved away from the leg 204 of the motor 104 and the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700b) attached to the back end surface of the tabletop 201b is brought into contact with the leg 204 of the motor 104, and then the adjustment screw 801 of the swivel adjustment support device 700 (700b) is tightened, the motor 104 moves in the direction of the arrow indicated by Y in Figure 9.

[0071] Furthermore, specifically, for example, when the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700c) attached to the front end surface of the tabletop 201b is moved away from the leg 204 of the motor 104 and the tip of the adjustment screw 801 of the swivel adjustment support device 700 (700d) attached to the back end surface of the tabletop 201b is brought into contact with the leg 204 of the motor 104, and then the adjustment screw 801 of the swivel adjustment support device 700 (700d) is tightened, the motor 104 moves in the direction of the arrow indicated by Y in Figure 9.

[0072] In this way, the swivel adjustment of motor 104 relative to escalator reducer 117 can be performed so that the axis of the output shaft of motor 104 is parallel to the axis of input shaft 202 of escalator reducer 117 (and other rotating shafts (output shaft 203, brake shaft, and each gear that makes up the gear train))).

[0073] Thereafter, bolt 401 and nut are fully tightened to fix the position of temporarily fixed motor 104. This reliably fixes the positional relationship between escalator reducer 117, whose swivel has been adjusted with high precision, and motor 104, and escalator reducer 117 and motor 104 can be connected.

[0074] Swivel adjustment assistance device 700 is fixed to tabletop 201b with fixing screws 702, and therefore can be attached to and detached from tabletop 201b. Therefore, after adjusting the swivel of motor 104 for escalator reducer 117 and fully tightening bolt 401 and nut, swivel adjustment assistance device 700 may be removed from tabletop 201b. Swivel adjustment assistance device 700 removed from tabletop 201b can be used to adjust the swivel of another motor 104 for another escalator reducer 117.

[0075] In this way, the same swivel adjustment assistance device 700 can be used to fix multiple escalator reducers 117 and motors 104. This makes it possible to reduce the cost of adjusting the swivel of motor 104 relative to escalator reducer 117, i.e., the cost of connecting escalator reducer 117 and motor 104, compared to when swivel adjustment assistance device 700 is provided integrally with escalator reducer 117.

[0076] In this embodiment, the support member 701 of the swivel adjustment support device 700 may have a rectangular shape in a front view and a generally L-shape bent so as to protrude toward the top plate 201b in a side view. When the support member 701 has a generally L-shape in a side view, when the swivel adjustment support device 700 is attached to the top plate 201b, one of the two generally L-shaped surfaces on which the screw hole into which the adjustment screw 801 is screwed is provided can be spaced apart from the side surfaces (the front end surface and the rear end surface) of the top plate 201b.

[0077] This allows the swivel adjustment support device 700 to be used even when connecting a motor 104 that has a shape or size that protrudes beyond the side surfaces (front end surface and back end surface) of the top plate 201b, ensuring high versatility of the swivel adjustment support device 700.

[0078] The swivel adjustment support device 700 can be used to adjust the tension of the endless belt wound around the pulley. Specifically, as shown in Fig. 10, the swivel adjustment support device 700 (700') is attached to the end face of the tabletop (end face excluding the end faces on the front and back sides), and the adjustment screw 801 (801') of this swivel adjustment support device 700 (700') is loosened or tightened.

[0079] Figure 10 shows an example in which the swivel adjustment support device 700 (700') is attached to one of the end faces (left and right end faces) excluding the end faces on the front and back sides of the tabletop, but when adjusting the tension of the endless belt wound around the pulley, the swivel adjustment support device 700 (700') may be attached to either of the end faces (left and right end faces) excluding the end faces on the front and back sides of the tabletop, or may be attached to both end faces.

[0080] As described above, the motor position adjustment method of the embodiment of the present invention includes the steps of inserting head 401b of bolt 401 into linear groove 301, which is provided in the top surface (top plate 201b) of escalator reducer 117 and has at least one open end, and causing the shaft portion of bolt 401 to stand up from the top surface (top plate 201b); and placing motor 104 on the top surface of escalator reducer 117 with the shaft portion of bolt 401 passing through a through-hole that is provided in leg 204 of motor 104 and passes through in the vertical direction. a step of screwing a nut onto bolt 401 to temporarily fix motor 104 to escalator reducer 117; and a step of abutting the tip of adjustment bolt 801, which is fixed in position relative to escalator reducer 117 and is screwed into screw hole 701a that penetrates in a direction intersecting the length direction of groove 301, against leg 204 of the motor, and tightening adjustment bolt 801, thereby performing swivel adjustment of motor 104 relative to escalator reducer 117.

[0081] According to the motor position adjustment method of the embodiment of the present invention, the swivel of motor 104 relative to escalator reducer 117 can be adjusted by abutting the tip of motor 104 against leg 204 of motor 104 placed on the top surface (top plate 201b) of escalator reducer 117 and tightening adjustment bolt 801 threaded into screw hole 701a fixed to escalator reducer 117.

[0082] Furthermore, according to the motor position adjusting method of the embodiment of the present invention, the swivel adjustment of motor 104 relative to escalator reducer 117 can be performed simply by loosening or tightening adjustment bolt 801. This makes it possible to easily adjust the swivel of motor 104 relative to escalator reducer 117.

[0083] Furthermore, according to the motor position adjustment method of the embodiment of the present invention, the swivel adjustment of motor 104 relative to escalator reducer 117 can be performed steplessly by loosening and tightening adjustment bolt 801. This allows fine adjustment of the parallelism of the rotation shaft (output shaft) of motor 104 relative to the input shaft of escalator reducer 117, ensuring high accuracy in the swivel adjustment of motor 104 relative to escalator reducer 117.

[0084] As described above, according to the motor position adjusting method of the embodiment of the present invention, the positional accuracy of the motor 104 relative to the escalator reducer 117 can be easily adjusted with high accuracy.

[0085] Furthermore, according to the motor position adjusting method of the embodiment of the present invention, the swivel adjustment of motor 104 relative to escalator reducer 117 can be performed simply by loosening or tightening adjustment bolt 801. This reduces the workload of workers and shortens the work time required to adjust the swivel of motor 104 relative to escalator reducer 117. This also reduces the labor, work time, and costs required for installing the reducer, including adjusting the swivel of motor 104 relative to escalator reducer 117.

[0086] In addition, the motor position adjustment method according to the present invention may include a step of fully tightening the bolt 401 and nut to fix the position of the temporarily fixed motor 104 after the "step of adjusting the swivel of the motor relative to the reducer."

[0087] According to this motor position adjustment method, the swivel adjustment can be performed with high precision in a stable location where work is easy to do, other than the location (site) where escalator reducer 117 (escalator 100) is installed, such as the manufacturing and assembly site of escalator reducer 117, and escalator reducer 117 and motor 104 can be transported to the site with their positional relationship securely fixed.

[0088] This makes it possible to shorten the time required for on-site work while ensuring accuracy, thereby shortening the time during which the escalator 100 cannot be used and reducing the burden on users of the escalator 100 and the manager of the escalator 100.

[0089] Furthermore, the swivel adjustment support device 700 of the embodiment of the present invention is characterized in that it is fixed to an escalator reducer 117 having a linear groove 301 with at least one end open on the top surface (top plate 201b), and is provided with a support member 701 having a screw hole 701a that penetrates along a direction intersecting the longitudinal direction of the groove 301, and an adjustment screw 801 that is screwed into the screw hole 701a so as to penetrate the support member 701.

[0090] According to the swivel adjustment support device 700 of the embodiment of the present invention, the support member 701 is fixed to the escalator reducer 117 so that the tip of the adjustment screw 801 threaded into the support member 701 abuts against the leg 204 (or the bolt 401) through which the bolt 401 passes, temporarily fixing the motor 104 placed on the top surface (top plate 201b) of the escalator reducer 117 together with a nut. By tightening the adjustment bolt 801, the swivel of the motor 104 relative to the escalator reducer 117 can be adjusted.

[0091] Furthermore, according to the swivel adjustment support device 700 of the embodiment of the present invention, the swivel adjustment of the motor 104 relative to the escalator reducer 117 can be easily performed simply by tightening the adjustment bolt 801 that is threaded into the support member 701 fixed to the reducer as described above.

[0092] Furthermore, according to swivel adjustment support device 700 of the embodiment of the present invention, by tightening adjustment bolt 801 threadedly engaged with support member 701 fixed to escalator reducer 117 as described above, it is possible to perform stepless swivel adjustment of motor 104 relative to escalator reducer 117, thereby ensuring high accuracy in swivel adjustment of motor 104 relative to escalator reducer 117.

[0093] This reduces the workload of workers and shortens the work time required to adjust the swivel of motor 104 relative to escalator reducer 117. This reduces costs, such as the labor and work time required for installing escalator reducer 117, including adjusting the swivel of motor 104 relative to escalator reducer 117. Furthermore, the time required for installing the reducer, including adjusting the swivel of motor 104 relative to escalator reducer 117, can be shortened, reducing the burden on users of escalator 100 and the manager of escalator 100. [Industrial Applicability]

[0094] As described above, the motor position adjustment method and swivel adjustment assistance device of the present invention are useful as a motor position adjustment method for a motor connected to a reducer and a swivel adjustment assistance device used to adjust the position of the motor, and are particularly suitable as a motor position adjustment method for a motor connected to an escalator reducer and a swivel adjustment assistance device used to adjust the position of the motor. [Explanation of symbols]

[0095] 100 Escalator 104 Motor 117 Escalator reducer 201 Case 201a Main body 201b Top plate 202 Input shaft 203 Output shaft 204 Legs 301 Groove 302 volts 401 volts 501 bolt holes 701 Support member 701a screw hole 702 Fixing screw 801 Adjustment screw 801a Shaft 802 Fixing screw hole

Claims

1. a step of inserting a head of a bolt into a linear groove that is provided on a top surface of the reducer and has at least one open end, and causing a shank of the bolt to stand upright from the top surface; placing the motor on the top surface of the reducer with the shank of the bolt passing through a through-hole that is provided in a leg portion of the motor and passes through in a vertical direction; a step of temporarily fixing the motor to the reducer by threading nuts onto the bolts; a step of abutting a tip of an adjustment bolt, the adjustment bolt being fixed in position relative to the reducer and threaded into a screw hole passing through the groove in a direction intersecting the longitudinal direction thereof, on the leg of the motor, and tightening the adjustment bolt to perform a swivel adjustment of the motor relative to the reducer; A motor position adjustment method comprising:

2. a support member fixed to the reducer, the reducer having a linear groove on its top surface, the linear groove having at least one open end, the support member having a screw hole passing through the support member in a direction intersecting the longitudinal direction of the groove; an adjustment screw that is threaded into the screw hole so as to pass through the support member; A swivel adjustment assist device comprising:

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