Escalator steps

Abstract

To provide a footstep of an escalator capable of suppressing the occurrence of a footstep levitation.SOLUTION: A footstep 110 of an escalator 1 comprises a footboard 119, a riser 120 provided on a rear surface 126 of the footboard 119, and a foreign substance stagnation suppressing device 122 provided on one end 127 of a footboard rear surface corresponding to a part on the opposite side of a part where the riser 120 is installed in a depth direction B of the footboard 119, on the rear surface 126 of the footboard 119. The foreign substances fallen on the one end 127 of the footboard rear surface are fallen from the rear surface 126 of the footboard 119 without stagnating on the one end 127 of the footboard rear surface.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to escalator steps. [Background technology]

[0002] Conventionally, there is known an escalator in which a number of steps arranged endlessly move in a circular manner. Each step includes a step, a riser, and a bracket. The riser protrudes from the rear surface of the step in a direction from the front surface of the step toward the rear surface of the step. The bracket is provided across the step and the riser (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-116515 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the escalator is in a descending motion, the step that has passed the outward travel path rotates around the axis of rotation of the driven sprocket on the horizontal section of the main frame on the lower floor side and enters the return travel path. As the step rotates around the axis of rotation of the driven sprocket, the state of the step changes from a state in which the surface of the tread faces upward to a state in which the surface of the tread faces downward. With the surface of the tread now facing downward, the step rises along the inclined section of the main frame on the return travel path.

[0005] The back surface of the step, the portion opposite the portion where the riser is provided in the depth direction of the step, is defined as one end of the back surface of the step. Of a pair of adjacent steps, the step that is forward in the step movement direction is defined as the front step, and the step that is rearward in the step movement direction is defined as the rear step. When the front step is directly below the rotation axis of the driven sprocket, one end of the back surface of the step of the front step is positioned lower than the riser of the rear step. On the other hand, when the front step moves from directly below the rotation axis of the driven sprocket to the inclined portion of the main frame, one end of the back surface of the step of the front step is positioned higher than the lower end of the riser of the rear step.

[0006] However, when the front step is directly under the rotation axis of the driven sprocket, a foreign object such as a coin that has fallen inside the main frame may land on one end of the back surface of the front step. If the front step moves from directly under the rotation axis of the driven sprocket to the inclined part of the main frame with a foreign object on the back surface, the riser of the rear step is pushed up by the front step. This causes a problem in that the step is positioned higher than the return path and rises up.

[0007] The present disclosure has been made to solve the above-mentioned problems, and has an object to provide an escalator step that can suppress the occurrence of the step lift-up. [Means for solving the problem]

[0008] The steps of an escalator according to the present disclosure include a step, a riser provided on the step, and a foreign object retention suppression device provided on the back surface of the step, on a portion opposite to the portion on which the riser is provided in the depth direction. The foreign object retention suppression device has a protruding member that protrudes from the back surface of the step in a step back surface direction, which is a direction from the front surface of the step toward the back surface of the step, without protruding from the step toward the riser of an adjacent step, and the protruding member has an inclined surface that is inclined with respect to the back surface of the step, and the inclined surface is inclined with respect to the back surface of the step so as to approach the back surface of the step as it moves away from the riser in the depth direction. is. Effect of the Invention

[0009] According to the escalator steps of the present disclosure, the occurrence of the steps lifting up can be suppressed. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a configuration diagram showing an escalator equipped with escalator steps according to a first embodiment. [Diagram 2] FIG. 2 is an enlarged view of the steps in FIG. [Diagram 3] FIG. 3 is an enlarged view showing a main part of the steps in FIG. 2. [Figure 4] FIG. 4 is a side view showing a main part of the steps of FIG. [Diagram 5] FIG. 4 is a perspective view showing the foreign matter retention suppression device of FIG. 3. [Figure 6] FIG. 2 is an enlarged view showing part C in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Embodiment 1 FIG 1 is a configuration diagram showing an escalator equipped with escalator steps according to embodiment 1. Escalator 1 is installed across upper floor 101 and lower floor 102 in a building. An upper floor entrance / exit 103 of escalator 1 is disposed adjacent to the floor surface of upper floor 101. A lower floor entrance / exit 104 of escalator 1 is disposed adjacent to the floor surface of lower floor 102.

[0012] The escalator 1 includes a main frame 105, a drive unit 106, a drive sprocket 107, a driven sprocket 108, a step chain 109, a plurality of steps 110, a balustrade 111, a movable handrail guide rail 112, and a movable handrail 113.

[0013] The main frame 105 is spanned across the upper floor 101 and the lower floor 102. The main frame 105 has an upper floor horizontal portion 114, a lower floor horizontal portion 115, and an inclined portion 116.

[0014] The upper floor horizontal portion 114 is a portion of the main frame 105 adjacent to the upper floor 101. The upper floor horizontal portion 114 is disposed along a horizontal plane.

[0015] The lower floor horizontal portion 115 is a portion of the main frame 105 adjacent to the lower floor floor 102. The lower floor horizontal portion 115 is disposed along a horizontal plane.

[0016] The inclined portion 116 is a portion provided across the upper floor side horizontal portion 114 and the lower floor side horizontal portion 115 in the main frame 105. The inclined portion 116 is disposed at an angle with respect to the horizontal plane.

[0017] An upper machine room 117 where workers enter and exit is formed in the upper floor horizontal portion 114. The upper machine room 117 is disposed below the upper floor entrance 103.

[0018] A lower machine room 118 where workers enter and exit is formed in the lower floor horizontal portion 115. The lower machine room 118 is disposed below the lower floor entrance 104.

[0019] The driving device 106 is disposed in the upper machine room 117. Power is generated by the driving device 106. The driving device 106 has a motor and a reducer. The driving of the driving device 106 is controlled by a control device (not shown).

[0020] The driving sprocket 107 is disposed in the upper machine room 117. Power generated in the driving device 106 is transmitted to the driving sprocket 107. Therefore, when the driving device 106 is driven, the driving sprocket 107 rotates.

[0021] The driven sprocket 108 is disposed in a lower machine compartment 118 .

[0022] The step chains 109 are arranged on both sides of the main frame 105 in the width direction. The step chains 109 are formed endless. The step chains 109 are arranged inside the main frame 105. The step chains 109 are also arranged across an upper machine room 117 and a lower machine room 118.

[0023] The step chain 109 is wound around each of the drive sprocket 107 and the driven sprocket 108. When the drive device 106 is driven, the drive sprocket 107 rotates, the step chain 109 moves in a circular motion, and the driven sprocket 108 rotates. Therefore, the power generated by the drive of the drive device 106 is transmitted to the step chain 109.

[0024] The steps 110 are attached to a step chain 109. The steps 110 are arranged side by side along the step chain 109. Therefore, the steps 110 are arranged side by side in a ring shape. The step chain 109 moves in a circular motion, causing the steps 110 to move in a circular motion.

[0025] The steps 110 are arranged across the upper floor entrance 103 and the lower floor entrance 104. Therefore, the steps 110 move in a circular manner, so that each step 110 moves between the upper floor entrance 103 and the lower floor entrance 104.

[0026] The balustrades 111 are disposed on both sides in the width direction of the main frame 105. The balustrades 111 are erected on the main frame 105.

[0027] The moving handrail guide rails 112 are arranged on both sides of the main frame 105 in the width direction. The moving handrail guide rails 112 are arranged across the main frame 105 and the balustrade 111. The moving handrail guide rails 112 are formed endlessly. The moving handrail guide rails 112 are arranged across the upper floor entrance 103 and the lower floor entrance 104.

[0028] The moving handrails 113 are arranged on both sides of the main frame 105 in the width direction. The moving handrails 113 are formed endlessly. The moving handrails 113 are attached to the moving handrail guide rails 112. Therefore, the moving handrails 113 are arranged across the upper floor entrance 103 and the lower floor entrance 104.

[0029] The moving handrail 113 is movable relative to the moving handrail guide rail 112. The moving handrail 113 also moves in a circulating manner together with the step chain 109. Therefore, the moving handrail 113 moves in a circulating manner together with the steps 110 as a result of the step chain 109 moving in a circulating manner.

[0030] Fig. 2 is an enlarged view showing the step 110 of Fig. 1. The step 110 of the escalator 1 according to the first embodiment includes a step 119, a riser 120 provided on the step 119, a bracket 121 provided across the step 119 and the riser 120, and a foreign object retention suppression device 122 provided on the step 119.

[0031] Moreover, the step 110 of the escalator 1 according to the first embodiment includes a drive roller 123 rotatably supported by the bracket 121 , and a driven roller 124 rotatably supported by the bracket 121 .

[0032] Step board 119 is shaped like a flat plate. Users of the escalator stand on step board 119. The surface of step board 119 that users stand on is designated as front surface 125. The surface of step board 119 opposite front surface 125 is designated as back surface 126. The direction from front surface 125 to back surface 126 is designated as step back surface direction A. The direction along front surface 125 of step board 119 and perpendicular to the width direction of step board 119 is designated as depth direction B.

[0033] The riser 120 protrudes from the back surface 126 of the step board 119 in the step board back surface direction A. The riser 120 is provided on the back surface 126 of the step board 119 at one end in the depth direction B. The part of the back surface 126 of the step board 119 opposite the part where the riser 120 is provided in the depth direction B of the step board 119 is defined as a step board back surface one end portion 127.

[0034] The foreign object retention suppression device 122 is provided on a back surface 126 of the step board 119, on a portion opposite to the portion where the riser 120 is provided in the depth direction B. In other words, the foreign object retention suppression device 122 is provided on one end portion 127 of the back surface of the step board.

[0035] The foreign object retention suppression device 122 is disposed so as to extend in the width direction of the step board 119. Moreover, the foreign object retention suppression device 122 is disposed across the entire area of ​​the step board 119 in the width direction.

[0036] The foreign object retention suppression device 122 has a protruding member 128 that protrudes from the back surface 126 of the step board 119 in the step board back surface direction A. In the first embodiment, the foreign object retention suppression device 122 is composed only of the protruding member 128. The protruding member 128 is formed with an inclined surface 129 that is inclined with respect to the back surface 126 of the step board 119. The inclined surface 129 is inclined with respect to the back surface 126 of the step board 119 so as to approach the back surface 126 of the step board 119 as it moves away from the riser 120 in the depth direction B.

[0037] The drive rollers 123 roll on a drive rail (not shown) provided on the main frame 105. As the drive rollers 123 roll on the drive rail, the steps 110 move along the movement path of the steps 110.

[0038] The driven rollers 124 roll on a driven rail (not shown) that is provided on the main frame 105. As the driven rollers 124 roll on the driven rail, the position of the steps 110 is maintained in a position that allows a user to stand on the steps 110.

[0039] Fig. 3 is an enlarged view showing a main part of the step 110 of Fig. 2. Fig. 4 is a side view showing a main part of the step 110 of Fig. 3. The step 110 is equipped with a caution sign member 130 provided on a surface 125 of a step board 119, and a fastening member 131 that fastens the caution sign member 130 to the step board 119. The fastening member 131 may be a screw, a bolt, or the like.

[0040] The caution sign member 130 indicates to a user standing on the steps 110 the position on the step board 119 of the steps 110 where the user should stand. The color of the caution sign member 130 is, for example, yellow. This makes it possible to inform the user of the steps 110 of the position of the caution sign member 130.

[0041] The foreign object retention prevention device 122 is fixed to the step board 119 together with the warning sign member 130 by using a fastening member 131. The foreign object retention prevention device 122 may be configured to be fixed to the step board 119 by a member different from the fastening member 131.

[0042] Fig. 5 is a perspective view showing the foreign object stagnation prevention device 122 of Fig. 3. A plurality of screw holes 132 are formed in the foreign object stagnation prevention device 122. The foreign object stagnation prevention device 122 is fixed to the step board 119 by inserting fastening members 131 into the screw holes 132. On the other hand, the foreign object stagnation prevention device 122 can be removed from the step board 119 by removing the fastening members 131 from the screw holes 132.

[0043] Foreign matter retention prevention device 122 is made of a material that allows foreign matter that has fallen into foreign matter retention prevention device 122 to slide easily against the surface of foreign matter retention prevention device 122. Examples of materials that make up foreign matter retention prevention device 122 include plastic.

[0044] Next, the operation of the steps 110 of the escalator 1 according to the embodiment 1 will be described. Fig. 6 is an enlarged view showing part C in Fig. 1. The steps 110 move sequentially along the outward movement path and the return movement path in the movement path of the steps 110.

[0045] When the escalator 1 is in a descending operation, the step 110 that has passed the outward travel path rotates about the rotation axis of the driven sprocket 108 on the lower floor horizontal part 115 of the main frame 105 and enters the return travel path.

[0046] As the steps 110 rotate about the rotation axis of the driven sprocket 108, the state of the steps 110 changes from a state in which the surface 125 of the step board 119 faces upward to a state in which the surface 125 of the step board 119 faces downward. The steps 110, which have now changed to a state in which the surface 125 of the step board 119 faces downward, rise along the inclined portion 116 of the main frame 105 on the return movement path.

[0047] Of a pair of adjacent steps 110, the step 110 located in front in the moving direction of the steps 110 is referred to as a front step 110A, and the step 110 located in the rear in the moving direction of the steps 110 is referred to as a rear step 110B.

[0048] When the front step 110A is located directly below the rotation axis of the driven sprocket 108, one end 127 of the back surface of the step of the front step 110A is located lower than the riser 120 of the rear step 110B.

[0049] On the other hand, when the front step 110A moves from directly below the rotation axis of the driven sprocket 108 to the inclined portion 116 of the main frame 105, one end 127 of the back surface of the step of the front step 110A is positioned higher than the lower end of the riser 120 of the rear step 110B.

[0050] When the front step 110A is directly below the rotation axis of the driven sprocket 108, a foreign object such as a coin that has fallen inside the main frame 105 may land on one end 127 of the back surface of the step of the front step 110A. When the front step 110A moves from directly below the rotation axis of the driven sprocket 108 to the inclined portion 116 of the main frame 105 with the foreign object on the back surface of the step of the front step 110A, the riser 120 of the rear step 110B is pushed up by the front step 110A. This causes the step 110 to be lifted up, with the step 110 positioned above the return path.

[0051] In the step 110 of the escalator 1 according to the first embodiment, a foreign object retention suppression device 122 is provided at one end 127 of the back surface of the step. As a result, foreign objects that fall onto the one end 127 of the back surface of the step do not stagnate at the one end 127 of the back surface of the step, but fall from the back surface 126 of the step 119. This prevents the riser 120 of the rear step 110B from being pushed up by the front step 110A. As a result, the step 110 is prevented from floating up.

[0052] As described above, the step 110 of the escalator 1 according to the first embodiment includes the step 119, the riser 120, and the foreign object retention suppression device 122. The foreign object retention suppression device 122 is provided on the back surface 126 of the step 119, at one end 127 of the step back surface, which is the opposite side to the part where the riser 120 is provided in the depth direction B of the step 119. With this configuration, foreign objects that fall on the one end 127 of the step back surface do not stagnate at the one end 127 of the step back surface, but fall from the back surface 126 of the step 119. As a result, the occurrence of the step 110 lifting up can be suppressed.

[0053] Furthermore, the foreign object retention prevention device 122 has a protruding member 128 that protrudes from the back surface 126 of the step 119 in the step back surface direction A. With this simple configuration, it is possible to prevent foreign objects that have fallen onto one end portion 127 of the step back surface from retaining at the step back surface one end portion 127.

[0054] Further, the protruding member 128 is formed with an inclined surface 129 inclined with respect to the back surface 126 of the step 119, and the inclined surface 129 is inclined with respect to the back surface 126 of the step 119 so as to approach the back surface 126 of the step 119 as it moves away from the riser 120 in the depth direction B. With this configuration, foreign matter that falls on one end 127 of the back surface of the step of the front step 110A can be dropped through the gap between the front step 110A and the rear step 110B.

[0055] Further, the step 110 of the escalator 1 includes a warning sign member 130 provided on the surface 125 of the step 119, and a fastening member 131 for fastening the warning sign member 130 to the step 119. The foreign object retention suppression device 122 is fixed to the step 119 using the fastening member 131. In other words, the foreign object retention suppression device 122 and the warning sign member 130 are fixed to the step 119 by the common fastening member 131. With this configuration, the number of parts can be reduced compared to a configuration in which the foreign object retention suppression device 122 and the warning sign member 130 are fixed to the step 119 by separate fastening members. As a result, the foreign object retention suppression device 122 can be fixed to the step 119 with a simple configuration.

[0056] Furthermore, foreign object retention suppression device 122 is fixed to tread 119 by fastening member 131 that secures caution sign member 130 to tread 119. This allows foreign object retention suppression device 122 to be fixed to tread 119 at step 110 of existing escalator 1 to which caution sign member 130 is fixed. This makes it possible to suppress the occurrence of step 110 lifting up at step 110 of the existing escalator. [Explanation of symbols]

[0057] 1 escalator, 101 upper floor floor, 102 lower floor floor, 103 upper boarding / alighting door, 104 lower boarding / alighting door, 105 main frame, 106 drive mechanism, 107 drive sprocket, 108 driven sprocket, 109 step chain, 110 step, 110A front step, 110B rear step, 111 balustrade, 112 movable handrail guide rail, 113 movable handrail, 114 upper horizontal part, 115 lower horizontal part, 116 inclined part, 117 upper machine room, 118 lower machine room, 119 step, 120 riser, 121 bracket, 122 foreign object stagnation prevention device, 123 drive roller, 124 driven roller, 125 surface, 126 back surface, 127 One end of the back surface of the tread, 128 protrusion member, 129 inclined surface, 130 warning sign member, 131 fastening member, 132 screw hole.

Claims

1. The stepping board, A riser provided on the step; A foreign object stagnation suppression device is provided on the back surface of the footboard, on a portion opposite to a portion where the riser is provided in the depth direction; Equipped with The foreign object stagnation suppression device has a protruding member protruding from the back surface of the step in a step back surface direction, which is a direction from the front surface of the step toward the back surface of the step, without protruding from the step toward the riser of an adjacent step, The protruding member has an inclined surface inclined with respect to the rear surface of the step board, The inclined surface is inclined with respect to the rear surface of the step so as to approach the rear surface of the step as it moves away from the riser in the depth direction.

2. A warning sign member provided on the surface of the step; a fastening member for fastening the warning sign member to the tread; Further equipped with The escalator step according to claim 1 , wherein the foreign object retention suppression device is fixed to the tread by the fastening member.

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