JP6210776B2 - Passenger conveyor skirt guard attaching / detaching device - Google Patents

Description

  The present invention relates to a skirt guard attaching / detaching device for a passenger conveyor for detachably attaching a skirt guard to a main frame.

  Conventionally, a skirt guard is provided by placing a screw receiving block with a screw hole on the back side of the angle and inserting a screw into the screw hole of the screw receiving block through a long hole of the angle from the screw hole provided in the skirt guard panel. A man conveyor having a panel fixed to an angle is known (for example, see Patent Document 1).

JP 2002-284472 A

  In the man conveyor shown in Patent Document 1, in order to attach and detach the skirt guard panel to the angle, it is necessary to remove the screws from the skirt guard panel and the screw receiving block. As a result, when attaching and detaching the skirt guard panel, there is a risk that a fastening part such as a screw and a screw receiving block will be accidentally dropped in the main frame of the man conveyor.

  In addition, when the fastening parts fall into the main frame of the man conveyor, secondary disasters (for example, steps caused by climbing on the fastening parts that have entered the travel path of the steps) due to the fall of the fastening parts into the main frame. Damage).

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to obtain a skirt guard attaching / detaching device for a passenger conveyor that can more reliably prevent a fastener from dropping when the skirt guard is attached / detached. Objective.

  The skirt guard attaching / detaching device for a passenger conveyor according to the present invention includes a reinforcing member provided on the skirt guard, a fastener provided on the reinforcing member, and an attaching member provided on the main frame. A slit portion having one end opened is provided, and the fastener has a screw shaft portion that can be inserted into the slit portion from the open portion of the slit portion, and a screw head provided at one end portion of the screw shaft portion. The reinforcement member is attached to the attachment member by tightening the attachment member between the reinforcement member and the screw head in a state where the screw shaft portion is inserted into the slit portion, and the slit portion is opened. The screw shaft portion is removed from the slit portion through the portion and is removed from the mounting member.

  According to the skirt guard attaching / detaching device of the passenger conveyor according to the present invention, since the screw shaft portion of the screw member can be inserted into the slit portion through the open portion of the slit portion, the attachment member can be removed without removing the fastener from the reinforcing member. The reinforcing member can be attached to and detached from the housing. Thereby, it is possible to more reliably prevent the fastener from dropping when the skirt guard is attached or detached.

It is a side view which shows the escalator by Embodiment 1 of this invention. It is a perspective view which shows the principal part of the skirt guard attaching / detaching apparatus of FIG. It is an enlarged view which shows the state in which the fastener is provided in the reinforcement member of FIG. It is a perspective view which shows the attachment member of the skirt guard attaching / detaching apparatus by Embodiment 2 of this invention. It is a perspective view which shows the attachment member of the skirt guard attaching / detaching apparatus by Embodiment 3 of this invention. It is a perspective view which shows the attachment member of the skirt guard attaching / detaching apparatus by Embodiment 4 of this invention. It is a perspective view which shows the principal part by which the fastener is provided in the reinforcement member of the skirt guard attaching / detaching apparatus by Embodiment 5 of this invention. It is a perspective view which shows the state by which the fastener is provided in the reinforcement member of the skirt guard attaching / detaching apparatus by Embodiment 6 of this invention. It is a perspective view which shows the principal part of the skirt guard attaching / detaching apparatus by Embodiment 7 of this invention. It is an enlarged view which shows the state by which the fastener is provided in the reinforcement member of FIG. It is a perspective view which shows the principal part of the skirt guard attaching / detaching apparatus by Embodiment 8 of this invention. It is an enlarged view which shows the state in which the fastener is provided in the reinforcement member of FIG.

Embodiment 1 FIG.
1 is a side view showing an escalator according to Embodiment 1 of the present invention. In FIG. 1, an escalator main frame 1 is provided between an upper floor and a lower floor. The main frame 1 supports a plurality of steps 2 connected endlessly. Each step 2 is circulated between the upper floor and the lower floor by the driving force of a driving machine (not shown) installed in the main frame 1. A pair of balustrades 3 disposed at both ends in the width direction of the main frame 1 are provided on the upper portion of the main frame 1. A moving handrail 4 that moves in synchronization with the step 2 is provided on the outer periphery of each balustrade 3. Although not shown in FIG. 1, a plurality of plate-like skirt guards 5 (see FIG. 2 described later) are arranged in the lower part of the balustrade 3 along the moving direction of the steps 2. Each skirt guard 5 is fixed to the main frame 1 by a skirt guard attaching / detaching device 6 (see FIG. 2).

  FIG. 2 is a perspective view showing a main part of the skirt guard attaching / detaching device 6 of FIG. FIG. 3 is an enlarged view showing a state in which a fastener is provided on the reinforcing member of FIG. 2. FIG. 2 shows a state in which the skirt guard 5 is removed from the main frame 1. The skirt guard 5 is provided such that the front surface of the skirt guard 5 faces the end surface in the width direction of the step 2.

  The skirt guard attaching / detaching device 6 is provided on the back surface of each skirt guard 5 to reinforce the skirt guard 5, a plurality of fasteners 20 provided on the reinforcing member 10, and the main frame 1. A plurality of mounting brackets (mounting members) 30 to which the reinforcing member 10 is detachably mounted by the tool 20 are provided. In FIG. 2, only one mounting bracket 30 among the plurality of mounting brackets 30 is shown.

  The reinforcing member 10 is disposed along the longitudinal direction of the skirt guard 5 (that is, the moving direction of the step 2). The reinforcing member 10 includes a reinforcing member main body 10a provided with a groove (recessed portion) 11 along the longitudinal direction of the reinforcing member 10, and a pair of plate-like fixing portions 10b protruding from the reinforcing member main body 10a. ing. The fixed plate portion 10b protrudes outward from both sides of the reinforcing member body 10a in the width direction of the reinforcing member body 10a. Thereby, the cross-sectional shape of the reinforcing member 10 is a hat shape by the reinforcing member main body 10a and the pair of fixing portions 10b. The reinforcing member 10 is fixed to the back surface of the skirt guard 5 with the groove 11 facing the skirt guard 5. Thus, a space formed by the inner surface of the groove 11 and the back surface of the skirt guard 5 exists as a fastener mounting space between the reinforcing member 10 and the skirt guard 5.

  Both ends in the longitudinal direction of each reinforcing member 10 are prevented from protruding from the skirt guard 5. Therefore, the length of each reinforcing member 10 in the longitudinal direction is set to the same length as the length of the skirt guard 5 in the longitudinal direction or slightly shorter than the length of the skirt guard 5 in the longitudinal direction.

  As shown in FIG. 2, the fasteners 20 are provided at both ends in the longitudinal direction of the reinforcing member 10. As shown in FIG. 3, the fastener 20 includes a screw seat 21 fitted in the groove 11 (in the fastener mounting space), and a fixing bolt (screw member) 22 provided on the screw seat 21. have. The fixing bolt 22 includes a screw shaft portion 22a that is a rod-shaped portion formed with a thread, and a screw head portion 22b that is provided at one end of the screw shaft portion 22a and has a diameter larger than the shaft diameter of the screw shaft portion 22a. It consists of Among the inner surface of the groove portion 11, a surface facing the skirt guard 5 (that is, the bottom surface of the groove portion 11) 11 a is provided with a plurality of bolt through holes 12 for passing the fixing bolts 22. The bolt through hole 12 is a round hole having an inner diameter that is smaller than the screw head portion 22b of the fixing bolt 22 and larger than the screw shaft portion 22a.

  The screw seat 21 is a plate-like member having a rectangular cross section provided with a screw hole into which the screw shaft portion 22a is screwed. Further, the screw seat 21 is disposed in the groove portion 11 so as not to turn against the inner surface of the groove portion 11. This prevents the screw seat 21 from rotating together with the screw shaft portion 22a when the screw shaft portion 22a is screwed into the screw hole of the screw seat 21. The fastener 20 is attached to the reinforcing member 10 in a state in which the screw shaft portion 22 a passed through the bolt through hole 12 is screwed to the screw seat 21 fitted in the groove portion 11.

  As shown in FIG. 2, the main frame 1 has a pair of horizontal members 1a arranged vertically along the longitudinal direction of the main frame 1, and a plurality of vertical members 1b connecting the horizontal members 1a. . In FIG. 2, only one longitudinal member 1b is shown among the plurality of longitudinal members 1b.

  The mounting bracket 30 is bent from the main frame side mounting portion 30a so as to face the plate-shaped main frame side mounting portion 30a stacked on the side surface of the vertical member 1b and the width direction end surface of the step 2, and the reinforcing member 10 is It is comprised by the plate-shaped reinforcement member side attaching part 30b attached. Thereby, the cross-sectional shape of the mounting bracket 30 is L-shaped.

  The main frame side mounting portion 30 a is provided with a plurality of open long holes 31 whose one end is open along the width direction of the main frame 1. The mounting bracket 30 is fixed to the side surface of the vertical member 1b by a bolt 35 passed through the open elongated hole 31 and a nut (not shown) screwed into the bolt 35. The distance of the reinforcing member side mounting portion 30b with respect to the end surface in the width direction of the step 2 can be adjusted by loosening the bolt 35.

  A darling hole 34 is provided in the reinforcing member side mounting portion 30b. The daruma hole 34 has a slit portion 32 having one end opened and a diameter larger than the width of the slit portion 32 and is large and communicates into the slit portion 32 through the slit opening portion (open portion) 32a of the slit portion 32. It is comprised by the diameter hole part 33. FIG. In this example, the upper end portion of the slit portion 32 along the vertical direction is opened, and the large-diameter hole portion 33 is connected to the upper end portion of the slit portion 32.

  The inner diameter of the large-diameter hole portion 33 is larger than any of the diameters of the screw shaft portion 22a and the screw head portion 22b. As a result, the large-diameter hole portion 33 allows passage of the fixing bolt 22. On the other hand, the width dimension of the slit part 32 is smaller than the diameter of the screw head part 22b, but larger than the diameter of the screw shaft part 22a. Accordingly, the slit portion 32 allows passage of the screw shaft portion 22a but prevents passage of the screw head portion 22b. The screw shaft portion 22 a can be inserted into and removed from the slit portion 32 through the slit opening portion 32 a of the slit portion 32. The screw shaft portion 22 a is slidable in the longitudinal direction of the slit portion 32 while being inserted into the slit portion 32.

  The reinforcing member side mounting portion 30b of the mounting bracket 30 has the screw head portion 22b and the reinforcing member main body 10a as a result of the fixing bolt 22 being fastened to the screw seat 21 with the screw shaft portion 22a inserted into the slit portion 32. Sandwiched between. The reinforcing member 10 is attached to the mounting bracket 30 by the reinforcing member side attaching portion 30b being sandwiched between the screw head 22b and the reinforcing member main body 10a. The reinforcing member 10 is removed from the mounting bracket 30 by loosening the fixing bolt 22 and removing the screw shaft portion 22a from the slit portion 32 through the slit opening portion 32a. The skirt guard 5 is attached to the main frame 1 by attaching the reinforcing member 10 to the mounting bracket 30, and is removed from the main frame 1 by removing the reinforcing member 10 from the mounting bracket 30.

  Next, a method for attaching and detaching the skirt guard 5 will be described. When attaching the skirt guard 5 to the main frame 1, first, the fixing position of the attachment bracket 30 with respect to the longitudinal member 1b is adjusted so that the skirt guard 5 is disposed at a predetermined position facing the end surface in the width direction of the step 2. . At this time, the vertical position of the mounting bracket 30 is adjusted so that the screw shaft portion 22a of the fixing bolt 22 is positioned at the lower end portion of the slit portion 32 when the skirt guard 5 is at the determined position. A fastener 20 is attached in advance to the reinforcing member 10 provided on the back surface of the skirt guard 5 with the fixing bolts 22 loosened.

  Thereafter, while holding the skirt guard 5, each fixing bolt 22 is inserted into the corresponding large-diameter hole portion 33, and the screw shaft portion 22 a is inserted into the slit portion 32 from the large-diameter hole portion 33 through the slit opening portion 32 a. To do. Thereafter, the screw shaft portion 22 a is slid to the lower end portion of the slit portion 32, and the fixing bolt 22 is tightened. Thereby, the reinforcing member 10 is attached to the attachment bracket 30, and the skirt guard 5 is disposed at a predetermined position facing the end surface in the width direction of the step 2. In this way, the skirt guard 5 is attached to the main frame 1.

  In addition, when the fixing position of the mounting bracket 30 has already been adjusted, the position adjustment work of the mounting bracket 30 is not necessary. Therefore, for example, when the skirt guard 5 is attached during inspection work after installation of the escalator, the work starts by inserting the fixing bolt 22 into the large-diameter hole 33 of the fixed mounting bracket 30.

  When removing the skirt guard 5 from the main frame 1, the procedure is reversed. That is, first, each fixing bolt 22 is loosened. At this time, the fixing bolt 22 is not removed from the screw seat 21. Thereafter, the skirt guard 5 is lifted upward to slide the screw shaft portion 22 a of the fixing bolt 22 from the slit portion 32 to the large-diameter hole portion 33. Thereafter, the reinforcing member 10 is removed from the mounting bracket 30 by removing the fixing bolt 22 from the large-diameter hole 33. In this way, the skirt guard 5 is removed from the main frame 1.

  In such a skirt guard attaching / detaching device 6, the screw shaft portion 22a of the fixing bolt 22 can be inserted into the slit portion 32 of the saddle hole 34 provided in the mounting bracket 30 through the slit opening portion 32a. Since the screw shaft portion 22a inserted into the shaft 32 is detached from the slit portion 32 through the slit opening portion 32a, the reinforcing member 10 is attached to the mounting bracket 30 without removing the fastener 20 from the reinforcing member 10. Detachable. Thereby, for example, even when it is difficult for an operator to visually observe the fastening portion (fastener 20) between the skirt guard 5 and the main frame 1, or even when the tool usage space around the fastener 20 is narrow, the skirt guard 5 is used. It is possible to more reliably prevent the fastener 20 from being dropped during attachment / detachment. Therefore, it is possible to prevent secondary disasters such as damage of other parts due to the dropped parts.

  Further, the screw seat 21 exists in the space (fastening attachment space) existing between the reinforcing member 10 and the skirt guard 5, and the screw shaft portion 22 a is screwed to the screw seat 21. Even if the plate thickness is small, by securing the thickness of the screw seat 21, it is possible to ensure the strength by fastening the fixing bolt 22 and the screw seat 21. Thereby, the reinforcing member 10 can be more firmly fixed to the mounting bracket 30.

Embodiment 2. FIG.
In the first embodiment, the saddle hole 34 constituted by the slit portion 32 and the large diameter hole portion 33 is provided in the mounting bracket 30, but the large diameter hole portion 33 is eliminated and only the slit portion 32 is provided in the mounting bracket 30. It may be provided.

  FIG. 4 is a perspective view showing the mounting bracket 30 of the skirt guard attaching / detaching device 6 according to Embodiment 2 of the present invention. As shown in FIG. 4, the slit portion 32 is provided in the reinforcing member side mounting portion 30 b of the mounting bracket 30 along the vertical direction. Moreover, the slit part 32 is open | released by the upper end part of the reinforcement member side attaching part 30b. The screw shaft portion 22 a can be inserted into and removed from the slit portion 32 through the slit opening portion 32 a of the slit portion 32. The screw shaft portion 22a is slidable in the longitudinal direction (vertical direction) of the slit portion 32 while being inserted into the slit portion 32. Other configurations are the same as those in the first embodiment. The attaching / detaching method is the same as that of the first embodiment.

  Thus, even when the slit portion 32 along the vertical direction is opened at the upper end portion of the mounting bracket 30, the same effect as in the first embodiment can be obtained.

Embodiment 3 FIG.
In the first embodiment, the slit portion 32 of the daruma hole 34 is provided in the mounting bracket 30 along the vertical direction. However, the slit portion 32 of the daruma hole 34 is provided in the mounting bracket 30 along the moving direction of the step 2. May be.

  FIG. 5 is a perspective view showing the mounting bracket 30 of the skirt guard attaching / detaching device 6 according to Embodiment 3 of the present invention. As shown in FIG. 5, in this example, the slit portion 32 of the daruma hole 34 is arranged along the moving direction of the step 2. The slit portion 32 and the large-diameter hole portion 33 are arranged on the same straight line in the moving direction of the step 2. Further, in this example, the large-diameter hole portion 33 is disposed at a position closer to the main frame side mounting portion 30 a than the slit portion 32. Other configurations are the same as those in the first embodiment.

  The method for attaching and detaching the skirt guard 5 is the same as that in the first embodiment except that the direction in which the screw shaft portion 22 a is slid in the slit portion 32 is the direction along the moving direction of the step 2. Therefore, when the plurality of skirt guards 5 are arranged in the moving direction of the step 2, the adjacent skirt guards 5 are attached / detached in order from the one arranged at the longitudinal end of the main frame 1.

  Thus, even if the slit portion 32 of the daruma hole 34 is arranged along the moving direction of the step 2, the same effect as in the first embodiment can be obtained.

Embodiment 4 FIG.
In the second embodiment, the slit portion 32 opened at the end of the mounting bracket 30 is provided along the vertical direction. However, the slit portion 32 may be provided in the mounting bracket 30 along the moving direction of the step 2. Good.

  FIG. 6 is a perspective view showing a mounting bracket 30 of a skirt guard attaching / detaching device 6 according to Embodiment 4 of the present invention. As shown in FIG. 6, in this example, the slit portion 32 is arranged along the moving direction of the step 2. The slit part 32 is open | released by the edge part of the side away from the main frame side attaching part 30a of the reinforcement member side attaching part 30b. Other configurations are the same as those of the second embodiment. The attaching / detaching method is the same as that in the third embodiment.

  Thus, even if the slit portion 32 is provided in the mounting bracket 30 along the moving direction of the step 2 and the slit portion 32 is opened at the end of the mounting bracket 30, the same effect as in the first embodiment can be obtained. it can.

Embodiment 5. FIG.
In Embodiment 1, the shape of the screw seat 21 is a flat plate having a rectangular cross section, but the present invention is not limited to this, and the shape of the screw seat 21 may be a bent plate.

  FIG. 7 is a perspective view showing a state in which the fastener 20 is provided on the reinforcing member 10 of the skirt guard attaching / detaching device 6 according to Embodiment 5 of the present invention. As shown in FIG. 7, the screw seat 21 includes a flat screw seat body 21 a and a plate-like protrusion 21 b that protrudes from the end of the screw seat body 21 a toward the skirt guard 5. Thereby, the cross-sectional shape of the screw seat 21 is L-shaped by the screw seat main body 21a and the protruding portion 21b. In this example, the screw seat 21 is manufactured by bending a single metal plate. The screw seat 21 is fitted so as not to rotate in the groove 11 as in the first embodiment. Other configurations are the same as those in the first embodiment.

  In such a skirt guard attaching / detaching device 6, since the protruding portion 21 b protrudes from the screw seat body 21 a toward the skirt guard 5, the displacement amount of the screw seat 21 between the bottom surface 11 a of the groove portion 11 and the skirt guard 5. Can be limited. Thereby, the handling of the fixing bolt 22 can be facilitated.

Embodiment 6 FIG.
In the first embodiment, the cross-sectional shape of the reinforcing member 10 is a hat shape, but is not limited thereto, and the cross-sectional shape of the reinforcing member 10 may be a substantially rectangular C-shape.

  FIG. 8 is a perspective view showing a state in which the fastener 20 is provided on the reinforcing member 10 of the skirt guard attaching / detaching device 6 according to Embodiment 6 of the present invention. As shown in FIG. 8, the reinforcing member 10 includes a reinforcing member main body 10a provided with a groove (concave portion) 11 along the longitudinal direction of the reinforcing member 10, and a pair of plate-like fixing portions protruding from the reinforcing member main body 10a. 10b. The fixed plate portion 10b protrudes inward from both sides of the reinforcing member body 10a in the width direction of the reinforcing member body 10a. Thereby, the cross-sectional shape of the reinforcing member 10 is substantially C rectangular due to the reinforcing member main body 10a and the pair of fixing portions 10b. The reinforcing member 10 is fixed to the back surface of the skirt guard 5 with the groove 11 facing the skirt guard 5. Thus, a space formed by the inner surface of the groove 11 and the back surface of the skirt guard 5 exists as a fastener mounting space between the reinforcing member 10 and the skirt guard 5. Other configurations are the same as those in the first embodiment.

  Thus, even if the cross-sectional shape of the reinforcing member 10 is substantially rectangular C-shaped, the same effect as in the first embodiment can be obtained.

Embodiment 7 FIG.
FIG. 9 is a perspective view showing a main part of a skirt guard attaching / detaching device 6 according to Embodiment 7 of the present invention. FIG. 10 is an enlarged view showing a state in which the fastener 20 is provided on the reinforcing member 10 of FIG. 9. In the figure, the reinforcing member 10 is provided with a bolt through hole 12, which is a long hole into which the screw shaft portion 22a is slidably inserted, along the moving direction of the step 2 (that is, the longitudinal direction of the reinforcing member 10). Yes. The width dimension of the bolt through hole 12 is larger than the diameter of the screw shaft portion 22a and smaller than the diameter of the screw head portion 22b. Other configurations are the same as those in the first embodiment.

  In such a skirt guard attaching / detaching device 6, the bolt through hole 12 into which the screw shaft portion 22 a is slidably inserted is provided in the reinforcing member 10 along the moving direction of the step 2. Sometimes the mounting position of the skirt guard 5 can be adjusted in the direction of movement of the step 2.

  Here, the mounting position of the mounting bracket 30 with respect to the vertical member 1b can be adjusted in the vertical direction and the width direction of the main frame 1, but the moving direction of the step 2 cannot be adjusted and the position of the vertical member 1b. It will be decided by. Therefore, when the position of the fixing bolt 22 with respect to the skirt guard 5 is fixed in the longitudinal direction of the reinforcing member 10, the processing of the reinforcing member 10 so that the position of the fixing bolt 22 matches the mounting position of the mounting bracket 30. The position of the mounting bracket 30 is adjusted by inserting a spacer between the side surface of the vertical member 1b and the mounting bracket 30 so that the position of the mounting bracket 30 matches the distance between the fixing bolts 22. There is a need to.

  On the other hand, in the present embodiment, the position of the fixing bolt 22 with respect to the skirt guard 5 can be adjusted with respect to the moving direction of the step 2, so that the displacement of the fixing bolt 22 with respect to the mounting bracket 30 can be easily absorbed. can do. This eliminates the need for high-precision processing of the reinforcing member 10 and the work of inserting a spacer between the vertical member 1b and the mounting bracket 30 and shortens the work time. Thereby, the productivity of an escalator can be improved.

  In the seventh embodiment, the same mounting bracket 30 as in the first embodiment is applied. However, even if the same mounting bracket 30 as in the second embodiment is applied to the configuration of the seventh embodiment, The same effect as in the seventh aspect can be obtained.

Embodiment 8 FIG.
In the seventh embodiment, the mounting member attached to the side surface of the vertical member 1b is the same mounting bracket 30 as in the first embodiment, but the mounting member attached to the side surface of the vertical member 1b is the fourth embodiment. It is good also as the attachment bracket 30 similar to.

  FIG. 11 is a perspective view showing a main part of a skirt guard attaching / detaching device 6 according to Embodiment 8 of the present invention. 12 is an enlarged view showing a state in which the fastener 20 is provided on the reinforcing member 10 of FIG. In the figure, the slit portion 32 is disposed along the moving direction of the step 2. Moreover, the slit part 32 is open | released in the edge part of the side away from the main frame side attaching part 30a of the reinforcement member side attaching part 30b. Other configurations are the same as those of the seventh embodiment.

  Thus, even when the same mounting bracket 30 as in the fourth embodiment is applied to the mounting bracket 30 in the seventh embodiment, the same effect as in the seventh embodiment can be obtained.

  Further, the direction of the slit portion 32 provided in the mounting bracket 30 and the direction of the bolt through hole 12 which is a long hole provided in the reinforcing member 10 are made to coincide with each other so that the length of the bolt through hole 12 is set to the slit portion 32. After the fixing bolt 22 is loosened by making it longer than the length of, the fixing bolt 22 is slid along the bolt through hole 12 without moving the skirt guard 5, and the screw shaft portion 22 a is removed from the slit portion 32. Can be removed. Thereby, in Embodiment 4, it was necessary to attach and detach the skirt guard 5 in order from the one arranged at the end in the longitudinal direction. However, only the necessary detachment work can be performed, and the skirt guard 5 can be attached and detached. Can be further facilitated.

  In the eighth embodiment, the same mounting bracket 30 as that of the fourth embodiment is applied. However, even if the same mounting bracket 30 as that of the third embodiment is applied to the configuration of the eighth embodiment, the embodiment of the present invention is not limited. An effect similar to that of Embodiment 8 can be obtained.

  In the fifth embodiment, the screw seat 21 having the screw seat main body 21a and the protruding portion 21b is applied to the screw seat 21 of the first embodiment, but the screw having the screw seat main body 21a and the protruding portion 21b. You may apply the seat 21 to the screw seat 21 of Embodiment 2-4 and 6-8.

  Moreover, in the said Embodiment 1-6, although the screw seat 21 is only fitted in the groove part 11, even if the screw seat 21 is previously fixed to the inner surface of the groove part 11 by welding or adhesion | attachment etc. Good. Furthermore, a normal nut may be used as the screw seat 21 that is fixed in advance to the inner surface of the groove 11.

  Moreover, in the said Embodiment 1-6, when the plate | board thickness required for the reinforcement member 10 is ensured, the screw hole which the screw shaft part 22a screws together may be provided in the reinforcement member 10 directly.

  Furthermore, in each of the above embodiments, the longitudinal end portions of the reinforcing member 10 are not protruded from the longitudinal end portion of the skirt guard 5, but the longitudinal end portion of the reinforcing member 10 is the longitudinal length of the skirt guard 5. You may protrude from the direction edge part.

  Further, in each of the above embodiments, the reinforcing member 10 is provided over the entire length along the longitudinal direction of the skirt guard 5, but the reinforcing member 10 is provided only on the portion of the skirt guard 5 facing the mounting bracket 30. It may be provided.

  Moreover, in each said embodiment, the cross-sectional shape of the reinforcement member 10 is not limited to hat shape or substantially rectangular C shape, For example, the reinforcement member 10 is good also as a tubular member of a cross-sectional rectangular shape.

  Moreover, in each said embodiment, although this invention is applied to the escalator, you may apply this invention to a mobile sidewalk (passenger conveyor).

  DESCRIPTION OF SYMBOLS 1 Main frame, 2 steps, 5 skirt guard, 6 skirt guard attaching / detaching device, 10 reinforcing member, 12 bolt through hole (long hole), 20 fastener, 21 screw seat, 21a screw seat body, 21b protrusion, 22 for fixing Bolt (screw member), 22a Screw shaft part, 22b Screw head, 30 Mounting bracket (mounting member), 32 Slit part, 32a Slit open part (open part), 33 Large diameter hole part, 34 Drum hole.

Claims (4)

Reinforcement members provided on the skirt guard,
A fastener provided on the reinforcing member, and a mounting member provided on the main frame,
The mounting member is provided with a slit portion having one end opened,
The fastener has a screw member having a screw shaft portion that can be inserted into the slit portion from an open portion of the slit portion, and a screw head portion provided at one end portion of the screw shaft portion,
The reinforcement member is attached to the attachment member by tightening the attachment member between the reinforcement member and the screw head in a state where the screw shaft portion is inserted into the slit portion. The screw shaft part is removed from the attachment member by being removed from the slit part through the open part ,
The fastener further includes a screw seat to which the screw shaft portion is screwed,
The screw seat is a skirt guard attaching / detaching device for a passenger conveyor provided in a space existing between the skirt guard and the reinforcing member .   The skirt guard attaching / detaching device for a passenger conveyor according to claim 1, wherein an elongated hole into which the screw shaft portion is slidably inserted is provided in the reinforcing member along a moving direction of a step of the passenger conveyor. 3. The passenger according to claim 1 , wherein the screw seat includes a screw seat main body to which the screw shaft portion is screwed, and a protrusion protruding from the screw seat main body toward the skirt guard. Conveyor skirt guard attaching / detaching device. The mounting member is provided with a large-diameter hole portion that allows the screw member to pass through and communicates with the slit portion through an open portion of the slit portion,
The skirt guard attaching / detaching device for a passenger conveyor according to any one of claims 1 to 3, wherein a boring hole is constituted by the large-diameter hole portion and the slit portion.

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