JP5086316B2 - Escalator moving handrail holding device - Google Patents

Description

  The present invention relates to an improvement of a moving handrail holding device for an escalator.

  A configuration of a conventional escalator will be described with reference to FIG. FIG. 6 is a perspective view of the entire conventional escalator.

  The escalator 110 is connected endlessly between a pair of entrances and exits 112 (only one is shown in FIG. 6) consisting of entrances and exits, and guide rails (not shown) ) And the like, and an endless moving handrail 118 that slides along the outer periphery of the balustrade 116 in synchronization with the plurality of steps 114 that circulate. The escalator 110 puts a hand on the moving handrail 118 and moves a user on the step 114 that circulates from one entrance / exit 112 to the other entrance 112.

  The moving handrail 118 is generally formed by solidifying a laminated body of cloth canvas materials or the like with a resin or an adhesive, and coating the surface of the moving handrail 118 with a rubber material or the like. The movable handrail 118 has a substantially C-shaped cross section, and is attached to the balustrade 116 in such a state that a guide rail (not shown) disposed on the balustrade 116 is held by an opening having a substantially C-shaped cross section. Accordingly, the movable handrail 118 is likely to be worn or damaged on the inner surface side rather than on the surface side thereof, in other words, on the contact surface side that contacts the guide rail of the balustrade 116, and this surface is subject to maintenance such as periodic repair and inspection. It becomes the object of.

  When performing maintenance on the inner surface side of the moving handrail 118, the worker removes the moving handrail 118 from the balustrade 116, and the moving handrail is in a state where the substantially C-shaped opening is exposed, that is, the opening faces upward. 118 is arranged. Then, one worker uses a tool such as a bark, pliers or pliers to open and widen the opening having a substantially C-shaped cross section. Perform maintenance work. The repair work included in the maintenance work is, for example, when there is damage or wear in the expanded opening, the worker cuts off the canvas material in the damaged or worn area with a cutter, etc. It is the work of pasting canvas material.

  In such maintenance work, since at least one worker is required to push the opening having a substantially C-shaped cross section of the moving handrail 118, the number of work steps is increased. Moreover, since the worker must maintain the opening in a state where the opening is pushed and widened during the work, the worker is physically fatigued. Furthermore, when physically fatigued, the state in which the opening is pushed out becomes unstable, which may cause a mistake in repair or inspection work.

  In Patent Document 1 below, a support base that supports the back side (the above-mentioned front surface side) of the handrail of the moving handrail and the opening end portion of the substantially C-shaped cross section are engaged to expand the opening. There is described a movable handrail holding device having an expanding engagement portion to be fixed and a fixing portion for fixing the expanding engagement portion to a support base in a state where the opening is expanded. In this moving handrail holding device, the support base is engaged with one side of the opening end portion of the moving handrail having a substantially C-shaped cross section to restrict the movement of the moving handrail in the width direction, and the expansion engaging portion is While holding the other side of the opening end portion, it is tilted to the support base side, and the fixed portion holds the expansion engaging portion, so that the opening portion of the moving handrail is mechanically held in a state of being expanded.

  In the moving handrail holding device of the above-mentioned patent document 1, since the opening of the moving handrail is mechanically held in a state where the opening is widened, the number of man-hours for workers to expand the opening and maintain the state. Can be reduced, the state where the opening is pushed open is stabilized, and the occurrence of maintenance work errors is suppressed.

JP 2005-213038 A

  However, in the moving handrail holding device of Patent Document 1 described above, one side of the opening end portion of the moving handrail that is engaged with the support base is not widened, so that maintenance work in this region is not performed. There is a problem that it is difficult to do. Further, in the moving handrail holding device of Patent Document 1, even if the opening portion of the moving handrail is mechanically held in an expanded state, the support base and the opening that engages one side of the opening end are opened. There is a problem in that maintenance work cannot be performed sufficiently because the expansion engagement portion that grips the other side of the end portion becomes an obstacle. For this reason, when the expansion engaging part becomes an obstacle and it hinders maintenance work, the state where the opening part of the moving handrail is pushed and widened is once released, and the position of the moving handrail holding device with respect to the moving handrail That is, after the position of the expansion engagement portion with respect to the opening end portion is shifted, the opening portion of the moving handrail must be pushed and widened again. Therefore, there is a problem that it takes time and labor for maintenance work.

  An object of the present invention is to provide a moving handrail holding device for an escalator that has a simple structure and can widen an opening of a moving handrail and maintain the state so as not to hinder maintenance work.

  In the present invention, when performing maintenance work on the inner surface side of a moving handrail having a substantially C-shaped cross section used for an escalator, the movement of the escalator that holds the opening having a substantially C-shaped section of the moving handrail in an expanded state In the handrail holding device, a supporting base that extends along the longitudinal direction of the moving handrail and supports the back side of the moving handrail in a substantially C-shaped cross section, and a pair of opening end portions of the moving handrail in a substantially C-shaped section Engagement sections that engage with each other, connect to the engagement sections, move the engagement sections to the outside in the width direction of the moving handrail to expand the opening, and are fixed to the support base to maintain its state An expansion holding mechanism, and the support base is formed with a fixing portion for fixing the expansion holding mechanism at an arbitrary position in the longitudinal direction of the movable handrail.

  The fixed part has a hole formed extending in the longitudinal direction of the moving handrail, and the expansion holding mechanism extends through the hole and is caught by the edge of the hole to expand the opening. The state can be maintained.

  Further, the spread holding mechanism is connected to the engaging portion and penetrates the hole, and a fitting member that is positioned outside the hole in the width direction of the moving handrail and fits the screw member. It is preferable that the opening is expanded by moving the engaging portion to the outside in the width direction of the moving handrail by rotating the fitting member.

  Further, the fitting member can be caught on the edge of the hole.

  Further, the fitting member can be caught on the edge of the hole via the elastic member.

  According to the moving handrail holding device for an escalator of the present invention, the opening portion of the moving handrail can be expanded and the state thereof can be held with a simple structure so as not to hinder maintenance work.

It is a perspective view which shows the structure of the support base of this embodiment. It is a figure which shows the engaging part and expansion holding mechanism of this embodiment. It is a top view which shows the structure of the moving handrail holding | maintenance apparatus of the escalator of this embodiment. It is sectional drawing which shows the state before the opening part expansion | deployment seen from the AA line of FIG. It is sectional drawing which shows the state which expanded the opening part seen from the AA line of FIG. It is a perspective view which shows the structure of the conventional escalator.

  Hereinafter, an embodiment of a moving handrail holding device for an escalator according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the configuration of the support base of this embodiment. FIG. 2 is a view showing the engaging portion and the expansion holding mechanism of the present embodiment. FIG. 3 is a plan view showing the configuration of the moving handrail holding device for the escalator of the present embodiment. FIG. 4 is a cross-sectional view showing a state before the opening is expanded, as seen from the line AA in FIG. 3. FIG. 5 is a cross-sectional view showing a state in which the opening is expanded as seen from the line AA in FIG. The specific configuration of the moving handrail is shown in FIGS.

  The escalator moving handrail holding device (hereinafter simply referred to as a moving handrail holding device) 10 is a cross section of the moving handrail 12 when performing maintenance work on the inner surface 12a side of the substantially hand-shaped moving handrail 12 used in the escalator. It is an apparatus that holds the substantially C-shaped opening 14 in an expanded state.

  As described in the prior art, the moving handrail 12 is formed by solidifying a laminate of cloth canvas materials or the like with a resin or an adhesive, and coating the surface of the moving handrail 12 with a rubber material or the like. The moving handrail 12 has a substantially C-shaped cross section, and the opening 14 thereof can be expanded. When the moving handrail 12 is attached to the balustrade (not shown), the opening 14 is expanded and a guide rail (not shown) arranged on the balustrade is inserted into the inner surface 12a side of the moving handrail 12. After the movable handrail 12 is attached to the railing, the expanded opening 14 is restored, so that the movable handrail 12 is prevented from falling off the railing.

  The moving handrail holding device 10 has a support base 16 that supports the rear surface 12b side of the moving handrail 12 having a substantially C-shaped cross section. The configuration of the support base 16 will be specifically described with reference to FIG.

  The support base 16 includes a support base body 18 made of, for example, a wooden square, and a fixing portion 22 that fixes an expansion holding mechanism 30 described later. The support base body 18 has a predetermined weight (for example, 15 kg) in order to prevent displacement of the movable handrail holding device 10 during maintenance work of the movable handrail 12 and to achieve stability.

  The support base body 18 has a support surface 18 a that contacts the back surface 12 b of the moving handrail 12 and supports the moving handrail 12. The support base body 18 is formed so as to extend along the longitudinal direction (x direction shown in the drawing) of the movable handrail 12, and the support surface 18a is formed in the width direction (y direction shown in the drawing). In FIG. 2, the length is larger than the length of the moving handrail 12.

  The fixing portions 22 are provided upright at both ends of the support surface 18a in the y direction. The fixing portion 22 is formed extending along the x direction. The fixing portion 22 is, for example, an L-shaped angle material. The fixing portion 22 has a plurality of holes 24 that extend along the x direction. The fixing portion 22 of the present embodiment is an L-shaped angle material with holes on both sides, and the holes formed in the angle material correspond to the holes 24. In the present embodiment, the fixing portion 22 is described as being an L-shaped angle material with holes on both sides, but is not limited to this configuration, and an L-shaped angle material with holes on one side can also be used. . In addition, as long as the fixing portion 22 is erected on the support surface 18a and has a hole 24 extending and extending along the x direction, a flat bar or a channel material may be used instead of the angle material. Further, if the interval between the fixing portions 22 facing each other is larger than the length of the moving handrail 12 in the y direction, the fixing portions 22 may be erected inside the both ends of the support surface 18a.

  The moving handrail holding device 10 is engaged with a pair of opening end portions 26 having a substantially C-shaped cross section of the moving handrail 12, and is connected to the engaging portion 28 so as to expand the opening portion 14. An expansion holding mechanism 30 that is fixed to the support base 16 and holds the state is provided. The structure of the engaging part 28 and the expansion holding mechanism 30 will be specifically described with reference to FIG.

  The engaging portion 28 is formed in a hook shape, and engages with the opening end portion 26 by hooking the opening end portion 26 inside thereof (see FIGS. 4 and 5). In the present embodiment, the case where the engaging portion 28 has a hook shape has been described. However, the present invention is not limited to this configuration, and the opening end portion 26 is sandwiched as long as it has a structure that engages with the opening end portion 26. It may be a vice plier or the like having a chin portion held at the end.

  The expansion holding mechanism 30 is positioned so as to be located between the threaded member 32 connected to the engaging part 28, the fitting member 34 fitted to the threaded member 32, and the engaging part 28 and the fitting member 34. And an elastic member 36 inserted into the screw-like member 32.

  The screw-like member 32 is a male screw bolt, and is a through bolt in which a screw is formed over the entire length. The screw-like member 32 is formed such that the bolt diameter is smaller than the inner diameter of the hole 24 so that the screw-like member 32 can penetrate the hole 24. The engaging portion 28 is connected to the tip of the screw-like member 32 through a nut. The screw-like member 32 is not limited to a bolt in which a screw is formed over the entire length, and may be a bolt in which a screw is formed to a predetermined length in which the fitting member 34 is fitted. Moreover, the engaging part 28 and the screw-shaped member 32 can also be connected by a well-known method, for example, welding.

  The fitting member 34 is a wing nut in which a female screw corresponding to the male screw of the screw-like member 32 is formed on the inner surface of the through hole (not shown). The fitting member 34 can move in the axial direction on the screw-like member 32 by rotating the fitting member 34.

  The elastic member 36 is a coiled spring, and washers 38 are provided at both ends thereof. The elastic member 36 and the washer 38 are slidably inserted into the screw-like member 32. The washer 38 has a diameter larger than the inner diameter of the hole 24 so that the washer 38 abuts against the edge of the hole 24 and cannot pass through the hole 24.

  Next, the operation in which the moving handrail holding device 10 expands the opening 14 of the moving handrail 12 and holds it in this state will be specifically described with reference to FIGS.

  First, the worker removes the moving handrail 12 from the balustrade (not shown) of the escalator, and places the moving handrail 12 on the support base 16 with the opening 14 facing upward. At this time, as shown in FIG. 3, the moving handrail 12 is arranged along the x direction, and as shown in FIG. 4, the rear surface 12 b side of the moving handrail 12 is arranged in contact with the support surface 18 a of the support base 16. Is done.

  Next, the worker penetrates the screw-like members 32 through the plurality of holes 24, and engages the engagement portions 28 connected to the screw-like members 32 into the pair of opening end portions 26 of the moving handrail 12, respectively. Engage. Then, the worker inserts the washer 38, the elastic member 36, the washer 38 and the fitting member 34 in this order from the end of the screw-like member 32, and assembles the expansion holding mechanism 30. This state is a state before the opening 14 of the moving handrail 12 is expanded (see FIGS. 3 and 4).

  Then, the worker uses the spread holding mechanism 30 to move the engaging portions 28 to the outside in the y direction, in other words, to the left side and the right side in FIG. Specifically, the fitting member 34 is rotated so as to move to the distal end side of the screw-like member 32. Then, the elastic member 36 is contracted between the washer 38 that is hooked to the edge of the hole 24 and the washer 38 that is to be moved to the distal end side of the screw-like member 32 together with the fitting member 34, so that the elastic member 36 is contracted outward in the y direction. The urging force is applied to the fitting member 34 and the screw-like member 32. When this urging force becomes larger than the restoring force in the closing direction of the opening end portion 26, as shown in FIG. 5, the engaging portion 28 moves outward in the y direction, and the opening portion 14 of the moving handrail 12 is moved. Expanded. Since the washer 38 is hooked on the edge of the hole 24, the movement of the screw-like member 32 to the inside in the y direction, in other words, to the moving handrail 12 side is restricted. Therefore, the expansion holding mechanism 30 can hold the state where the opening 14 is expanded.

  According to the moving handrail holding device 10 of the present embodiment, since the pair of opening end portions 26 of the moving handrail 12 can be pushed and expanded, as compared with the device that pushes only one side as described in the prior art, the opening portion. 14 is easy to perform maintenance work.

  Further, the moving handrail holding device 10 of the present embodiment has a fixing portion 22 in which a hole 24 is formed in the support base 16 so that the expansion holding mechanism 30 can be fixed at an arbitrary position in the x direction. With this configuration, it is possible to perform maintenance work on the region of the opening end portion 26 engaged with the engaging portion 28 while the opening portion 14 of the movable handrail 12 is held in an expanded state. Even in the case where the portion 28 gets in the way, only the engaging portion 28 and the expansion holding mechanism 30 connected thereto can be shifted to an arbitrary position in the x direction and fixed to the fixing portion 22 again. . During this time, the state in which the opening 14 of the movable handrail 12 is expanded is held by the engaging portion 28 that does not interfere with the maintenance work and the expansion holding mechanism 30 connected thereto. Therefore, as described in the related art, once the opening of the moving handrail is released, the position of the moving handrail holding device is shifted with respect to the moving handrail, and then the opening of the moving handrail again. Since there is no need to expand the window, maintenance work can be saved.

  In the present embodiment, the case where the washer 38 of the expansion holding mechanism 30 is hooked on the edge of the hole 24 and the opening 14 is held in an expanded state has been described, but the present invention is not limited to this configuration. If the structure is larger than the inner diameter of the hole 24 and can be hooked on the edge of the hole 24, the elastic member 36 is hooked on the edge of the hole 24 without attaching the washer 38, and the opening 14 is held in an expanded state. May be. Further, without attaching the elastic member 36 and the washer 38 between the elastic member 36 and the fitting member 34, the fitting member 34 is caught on the edge of the hole 24 and the opening 14 is held in an expanded state. Also good.

  In the present embodiment, the case where the fixing portion 22 has a plurality of holes 24 extending in the x direction has been described. However, the present invention is not limited to this configuration. A plurality of circular holes 24 may be formed side by side in the x direction as long as the fixing portion 22 can fix the spread holding mechanism 30 at an arbitrary position in the x direction. Moreover, the fixing | fixed part 22 has the notch formed in multiple numbers in the x direction, and holds the opening part 14 in the state expanded by hooking the expansion holding mechanism 30 on the edge of this notch. You can also.

  DESCRIPTION OF SYMBOLS 10 Escalator moving handrail holding device, 12 Moving handrail, 14 Opening part, 16 Support base, 22 Fixing part, 24 Hole, 26 Opening end part, 28 Engagement part, 30 Expansion holding mechanism, 32 Screw-shaped member, 34 fitting Joint member, 36 Elastic member.

Claims (5)

In a moving handrail holding device for an escalator that holds the moving handrail in an expanded state when performing maintenance work on the inner surface side of a moving handrail having a substantially C-shaped cross section used for an escalator ,
A support base that extends along the longitudinal direction of the moving handrail and supports the back side of the substantially hand-shaped cross section of the moving handrail;
Engaging portions respectively engaged with a pair of opening end portions having a substantially C-shaped cross section of the moving handrail;
An expansion holding mechanism that is connected to the engagement portion, moves the engagement portion to the outside in the width direction of the moving handrail to widen the opening, and is fixed to the support base and holds the state;
Have
The support base is formed with a fixing portion that fixes the expansion holding mechanism at an arbitrary position in the longitudinal direction of the moving handrail.
The moving handrail holding device of the escalator characterized by the above-mentioned. In the moving handrail holding device of the escalator according to claim 1,
The fixed portion has a hole formed extending in the longitudinal direction of the moving handrail,
The spreading and holding mechanism holds the state in which the opening is widened by penetrating the hole and hooking on the edge of the hole.
The moving handrail holding device of the escalator characterized by the above-mentioned. In the moving handrail holding device of the escalator according to claim 2,
The expansion holding mechanism is
A threaded member connected to the engaging portion and penetrating through the hole;
From the hole, located on the outer side in the width direction of the moving handrail, a fitting member that fits into the screw-shaped member,
Have
By rotating the fitting member, the opening is expanded by moving the engaging portion to the outside in the width direction of the moving handrail.
The moving handrail holding device of the escalator characterized by the above-mentioned. In the moving handrail holding device of the escalator according to claim 3,
The fitting member is caught on the edge of the hole,
The moving handrail holding device of the escalator characterized by the above-mentioned. In the moving handrail holding device of the escalator according to claim 3,
The fitting member is caught on the edge of the hole via the elastic member,
The moving handrail holding device of the escalator characterized by the above-mentioned.

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