JP6380226B2 - Passenger conveyor handrail attachment / detachment tool - Google Patents

Description

  The present invention relates to a moving handrail attaching / detaching tool for a passenger conveyor, and more particularly to a manual tool used for detaching and attaching a moving handrail in a passenger conveyor.

  For passenger conveyors such as escalators and moving walkways, as part of regular inspections, etc., the maintenance department of the passenger conveyor manufacturer or the maintenance department in order to examine the presence or absence of scratches on the moving handrail and the guide rail that guides the moving handrail. A worker of the service company performs an operation of detaching the moving handrail attached to the guide rail from the guide rail or mounting it on the guide rail.

  The moving handrail is made of synthetic rubber or synthetic resin and has a belt shape with a flat C-shaped cross section. On the other hand, the guide rail has, for example, a substantially T-shaped cross section, and has a shape in which a flange portion protrudes left and right from an upper end portion of a straight portion extending vertically. The moving handrail is attached to the guide rail so that the opening of the C-shaped section faces downward and the inner surfaces of both ends of the C-shaped section surround the left and right flanges. .

  As a tool used to attach and detach the moving handrail fitted to the guide rail in this way, a stick is projected from one end of a substantially cylindrical handle made of synthetic resin. (Hereinafter referred to as “first tool”). The club has a straight shaft portion that extends coaxially with the handle and a hook-shaped portion that extends from the tip of the straight shaft portion and is bent in a substantially L shape.

  In order to detach the moving handrail from the guide rail using the first tool, first, grasp the handle by hand, insert the tip of the hook-like part through the gap between the moving handrail and the guide rail, and insert the hook-like part. Hook on one end of the C-shaped section. After pulling in the horizontal direction perpendicular to the moving handrail with the one end hooked, lift the hook-shaped part upward (pull upward with the handle upright), and part of the moving handrail (The portion hooked by the hook portion and its vicinity) are elastically deformed and removed from the flange portion of the guide rail.

  Next, tilt the handle so that it is approximately parallel to the longitudinal direction of the moving handrail, and hold the handle in a state where the hook-shaped part is sandwiched between the moving handrail part removed from the flange part and the flange part. By continuously pulling the gripped hand over the desired length in the opposite direction to the saddle-shaped part (usually in the direction approaching your body), the moving handrail part moves continuously. The handrail is separated from the desired length from the guide rail.

  As another type of tool different from the first tool, a tool disclosed in Patent Documents 1 and 2 (hereinafter referred to as “second tool”) is known. The second tool is common to the first tool in that it has a club, but the structure of the handle is different. The handle of the second tool consists of an elongated metal bar. The second tool is in a state in which the end of the straight shaft portion on the opposite side of the hook portion is perpendicular to the metal rod in a T-shape at the center portion in the length direction of the metal rod. It is formed by joining.

  In the case of using the second tool, the way of handling the stick when removing the moving handrail from the guide rail is the same as that described above in the case of using the first tool. When a part of the guide rail is removed from the flange portion or when the guide rail is separated over a desired length, the way of holding the handle is different. That is, when using the second tool, when pulling the tool, the worker holds the handle composed of the metal rod intersecting with the club stick in a T-shape with four or three fingers other than the thumb. Will be hooked.

  Regardless of which tool is used, a large force is required to elastically deform and remove the movable handrail from the guide rail, and the worker puts weight on the tool in the above-described operation of pulling the tool. It will be. In addition, the operation | work which pulls a tool is needed also when mounting | wearing a guide rail with a moving handrail.

JP 2003-171079 A (Patent No. 3917849) JP 2013-170070 (Patent No. 5518916)

  By the way, in the operation of pulling the tool, depending on the worker, the person who feels that the first tool that can grip (hold) the handle firmly is more convenient (hereinafter referred to as “first worker”). On the other hand, there is a person who feels that the second tool that can be held by placing a finger on the handle is easier to use (hereinafter referred to as “second worker”).

  In this case, when considering the convenience of both workers, it is necessary to prepare two types of tools for joint use in the department or the company, but this is not economical.

  In addition, in the case where a tool suitable for each worker is prepared for each worker, for example, when the first worker and the second worker work together, if one worker forgets the tool, the other worker A worker borrows a tool from the worker, but one worker who borrows the tool works with a tool that is not easy to use by himself, and the work efficiency may be reduced.

  In view of the above-described problems, the present invention can attach and detach a moving handrail of a passenger conveyor that can be performed by, for example, hooking a finger on a handle or gripping a handle during work performed by pulling a tool. The purpose is to provide a tool.

  In order to achieve the above object, a moving handrail attaching / detaching tool for a passenger conveyor according to the present invention is a saddle that is bent from a straight shaft portion and a first end portion of the straight shaft portion. And a handle joined to a second end portion of the straight shaft portion opposite to the first end portion, the handle being the straight shaft. It consists of a ring member that is elongated and flat in the axial direction of the portion.

  The ring member has a track shape formed by connecting two semicircles with two parallel straight lines.

  Alternatively, the ring member has a saddle hole shape formed by connecting a first arc and a second arc having a diameter larger than the first arc by two parallel straight lines, and the first arc A portion corresponding to is joined to the straight shaft portion.

  Alternatively, the ring member is formed in a shape in which the width in the direction perpendicular to the axis on the outer periphery gradually increases as the distance from the joint portion with the straight shaft portion increases, and is opposite to the joint portion. The inner peripheral part located in is formed in a shape that bulges out toward the straight shaft part.

  According to the moving handrail attaching / detaching tool of the passenger conveyor according to the present invention having the above-described configuration, since the handle is made of the ring member, in the operation of pulling the moving handrail attaching / detaching tool, the operator can move the inner periphery of the ring member. You can work with your finger on In addition, since the ring member is elongated and flat in the axial direction of the straight shaft portion constituting the club, in the operation of pulling the moving handrail attaching / detaching tool in the axial direction, the operator It is also possible to work by firmly grasping the outer periphery of the (handle) from its width direction (direction perpendicular to the axis).

It is a perspective view which shows schematic structure of an example of the escalator used as the attachment or detachment object of the moving handrail using the moving handrail attachment / detachment tool of a passenger conveyor based on embodiment. It is a side view which shows a part of balustrade which comprises the said escalator. (A) of the said moving handrail attaching / detaching tool is a front view, (b) is a left view, (c) is a top view. It is a figure for demonstrating the removal | desorption procedure from the guide rail of the moving handrail by the said moving handrail attaching / detaching tool. It is a figure for demonstrating the removal | desorption procedure from the guide rail of the moving handrail by the said moving handrail attaching / detaching tool. It is a figure for demonstrating the removal | desorption procedure from the guide rail of the moving handrail by the said moving handrail attaching / detaching tool. It is a figure which shows an example of how to hold the handle of the said moving handrail attachment / detachment tool. It is a figure which shows the modification of the said moving handrail attachment / detachment tool.

  Hereinafter, a moving handrail attaching / detaching tool (hereinafter simply referred to as “tool”) 10 of a passenger conveyor according to an embodiment will be described with reference to the drawings. There are escalators and moving walkways on the passenger conveyor, which is a work target using the tool 10 (FIG. 3). Here, the escalator will be described as an example.

[Escalator]
As shown in FIG. 1, the escalator 100 includes a plurality of steps 102 connected endlessly and circulated, and balustrades 104 erected along the traveling path on both sides of the traveling path of the plurality of steps 102. 106. Passengers of the escalator 100 get on the tread 102A of the step 102 and are transported from the bottom (downstairs) to the top (upstairs) or from the top to the bottom. Since the balustrade 104 and the balustrade 106 have the same configuration, only the configuration related to the balustrade 104 and the balustrade 104 will be described below.

  The balustrade 104 has a plurality of balustrade panels 108 erected along the traveling path. The balustrade panel 108 in this example is made of glass.

  At the lower part of the balustrade panel 108, an inner deck 110 projecting to the step 102 side and an outer deck 112 projecting to the opposite side of the step 102 are provided. Further, a skirt guard 114 is erected with a gap from the step 102.

  The inner deck 110, the outer deck 112, and the skirt guard 114 are made of, for example, a stainless steel plate. A plurality of inner decks 110, outer decks 112, and skirt guards 114 are arranged along the running direction of the steps 102.

  The balustrade 104 has a moving handrail 116 that runs around the outer periphery of the balustrade panel 108 at a speed synchronized with the step 102.

  The moving handrail 116 has an endless belt shape, and a substantially half-circular portion appearing in the figure is guided by a guide rail 118 (FIG. 2) provided at the peripheral portion of the balustrade panel 108, and the remaining half-circular portion is The vehicle runs around while being guided by guide rails (not shown) laid below the lower end (not shown) of the balustrade panel 108 and below the inner deck 110. In the section that travels along the upper edge of the balustrade panel 108 (the section that the passenger grips), the guide rail 118 (FIG. 2) guides it to move in the horizontal direction, and then guides it to run diagonally. Guided horizontally.

  As shown in FIG. 2, the guide rail 118 has a guide bracket 120 made of a metal material (for example, stainless steel) with a “W” -like cross-sectional shape. The guide bracket 120 has a groove 120A having a U-shaped cross section that opens downward. The guide bracket 120 is fixed to the balustrade panel 108 with a groove 120A fitted into the upper edge of the balustrade panel 108 via a grip member 122 made of a rubber sheet. In addition, the guide bracket 120 has flange portions 120D and 120E that extend in opposite directions from both ends of the recessed portions 120B and 120C having a U-shaped cross section that opens upward on both sides of the groove portion 120A.

  The guide rail 118 has sliding contact members 124 and 126 that are attached so as to cover most of the flange portions 120D and 120E. The sliding members 124 and 126 are made of a nylon extruded material.

  Here, in the guide rail 118, the flange portions 120D and 120E and the sliding contact members 124 and 126 covering the flange portions 120D and 120E are referred to as flange portions 118A and 118B. In the guide rail 118, the surface indicated by reference numerals 120F and 120G is referred to as a side surface (side surfaces 120F and 120G) of the guide rail 118. As will be described later, in the guide rail 118, the flange portions 118A and 118B are portions into which both end portions in the width direction of the movable handrail 116 are fitted. Depending on the type of guide rail, the sliding contact member may not be provided, and the flange portion of the guide bracket itself may be a flange portion into which the moving handrail is fitted.

  The moving handrail 116 is made of synthetic rubber or synthetic resin and has a C shape with a flat cross section. The moving handrail 116 is fitted into the guide rail 118 so that the opening of the C-shaped section faces downward and the inner surfaces of both ends of the C-shaped section surround the left and right flange portions 118A and 118B.

  Between the first end 116A, which is one end of the C-shape of the moving handrail 116, and the side surface 120F of the guide rail 118, there is a gap C1 between the second end 116B, which is the other end, and the side surface 120G. C2 is opened.

[Moving handrail attachment / detachment tool]
As shown in FIG. 3, the tool 10 for attaching and detaching the moving handrail 116 fitted to the guide rail 118 as described above has a club 12 and a handle 20 as shown in FIG. 3.

  The club 12 is made of a metal material (for example, a steel material), and a round bar is mainly bent. The club 12 includes a straight shaft portion 14 that extends straight and a hook-shaped portion 16 that extends from the first end portion 14A of the straight shaft portion 14 and is bent in a bowl shape (substantially L-shaped). Including. A spherical portion 18 is formed at the tip of the bowl-shaped portion 16.

  A handle 20 is joined to the second end portion 14 </ b> B of the straight shaft portion 14. The handle 20 is made of a ring member obtained by bending a round bar made of a metal material (for example, a steel material). The handle 20 has a track shape (in track and field) that is elongated and flat in the direction of the axis X1 of the straight shaft portion 14. The track shape refers to a shape formed by connecting two semicircles with two parallel straight lines.

  Here, in the track-shaped handle 20, the semicircular portion present at the joint portion with the straight shaft portion 14 is the first semicircular portion 20A, the other semicircular portion is the second semicircular portion 20B, and the first semicircular portion is the first semicircular portion 20B. Of the two straight portions connecting the semicircular portion 20A and the second semicircular portion 20B, one is referred to as a first straight portion 20C and the other is referred to as a second straight portion 20D.

  In the tool 10 having the above-described shape, the width W1 of the handle 20 (the distance between the outermost circumferences of the first semicircular portion 20A and the second semicircular portion 20B) and the length L1 are determined from the width direction of the handle 20. The length is set so as to be easily gripped (FIG. 7A).

[Removal procedure]
A procedure for attaching / detaching the moving handrail 116 to / from the guide rail 118 using the tool 10 having the above-described configuration will be described with reference to FIGS. Here, first, the case where the section where the moving handrail 116 is skewed as shown in FIG. 1 is detached from the top to the bottom (when removed) will be described. An operator who removes and installs the moving handrail 116 performs work while standing on the tread surface 102A of the step 102 when traveling is stopped. The worker first stands on the tread surface 102A of one or two steps 102 located at the upper stage among the plurality of steps 102 in the oblique section.

  An operator (not shown) holds the handle 20 of the tool 10 with one hand, attaches the other hand to the hook-shaped part 16, and moves the hook-shaped part 16 upward (as shown in FIG. 4A). The direction of the arrow T1) is moved, and the spherical portion 18 and the tip portion of the bowl-shaped portion 16 are pushed into the inside of the moving handrail 116 from the gap C1 with the spherical portion 18 at the head (FIG. 4B).

  As a result, the first end 116 </ b> A of the moving handrail 116 is hooked by the hook-shaped portion 16. In this hooked state, the operator pulls the hand holding the handle 20 in a substantially horizontal direction (direction of arrow T2) perpendicular to the longitudinal direction of the moving handrail 116 as shown in FIG. Thereafter, as shown in FIG. 4C, while maintaining the pulled state (arrow T3), the tool 10 (saddle-shaped portion 16) is rotated in the direction of arrow T4, and the entire tool 10 is lifted upward. Then, a part of the moving handrail 116 (the portion hooked by the hook-like portion 16 and its vicinity) is removed from the flange portion 118A of the guide rail 118 (FIG. 5).

  Next, the entire tool 10 is tilted (rotated) to the lower side of the moving handrail 116 with the tip portion of the hook-shaped portion 16 as the center, and is substantially parallel to the longitudinal direction of the moving handrail 116 as shown in FIG. To.

  With the tip end portion of the hook-shaped portion 16 being sandwiched between the moving handrail 116 portion (hereinafter referred to as “detachment portion”) that is detached from the flange portion 118A and the flange portion 118A, the operator By continuing to pull the hand holding the handle 20 while descending 102 (FIG. 1) in the direction opposite to the bowl-shaped portion 16 side (the direction of the arrow T5) over the section where the moving handrail 116 is skewed, Starting from the detached portion, the moving handrail 116 is continuously separated from the flange portion 118A for a length corresponding to the oblique section.

  The portion of the moving handrail 116 detached from the one flange portion 118A is pressed toward the other flange portion 118B (FIG. 2), so that the portion is detached from the guide rail 118.

  As described above, some of the series of operations described above are operations for pulling the tool 10 (in the direction of the axis X1 of the straight shaft portion 14) (FIG. 4 (a) arrow T2, arrow (C) arrow T3, FIG. 6 arrow T5). In this case, since the handle 20 of the tool 10 is made of a ring member (in the form of a track), the operator can work by hooking a finger on the inner periphery of the ring member. For example, as shown in FIG. 7A, it is possible to work by hooking four fingers from the first straight portion 20C of the handle 20 to the second semicircular portion 20B. Alternatively, as shown in FIG. 7B, it is possible to work by hooking three fingers on the second semicircular portion 20B.

  Further, since the ring member is elongated and flat in the direction of the axis X1 of the straight shaft portion 14 (FIG. 3), the outer periphery of the ring member (handle 20) is shown in FIG. It is also possible to work by gripping from the width direction (direction orthogonal to the axis X1).

  Thus, with the tool 10, the operator can select a holding method according to his / her convenience such as hooking a finger on the handle 20 or holding the handle 20. That said, you don't always have to hold one. For example, if the elevator has a high rise, the above-described oblique section becomes considerably long, and thus the hand (finger) becomes very tired in the operation of continuously pulling the tool 10 over the section. In this case, it is conceivable to change the holding method in the middle (that is, from gripping to hooking or from hooking to gripping) to alleviate fatigue even a little.

  In addition, when attaching the handrail 116 to the guide rail 118 (when attaching), work is performed as follows.

  First, by a manual operation without using the tool 10, the end portion (second end) corresponding to the width direction of the flange 118B of the guide rail 118 shown in FIG. 116B side end portion).

  Next, the tool 10 is held with one hand, the tip portion of the hook-like portion 16 is directed upward, and the tool 10 (the axis X1 thereof) is in a posture that is substantially parallel to the longitudinal direction of the moving handrail 116, It hooks on the first end 116 </ b> A of the moving handrail 116. Twist the tool 10 (rotate about the axis X1) and elastically deform the hooked portion until the hooked first end 116A is located at the tip of the flange portion 118A or outward from it. (Hereinafter, this portion is referred to as “elastic deformation portion”).

  Then, while continuing to pull the hand holding the handle 20 opposite to the club 12, and by pressing the vicinity of the elastic deformation portion toward the flange portion 118A with the opposite hand, continuously, The moving handrail 116 is fitted into the guide rail 118. As described above, when the movable handrail 116 is mounted, the work performed by pulling the tool 10 is necessary.

  As mentioned above, although the moving handrail attachment / detachment tool of the passenger conveyor based on this invention has been demonstrated based on embodiment, it cannot be overemphasized that this invention is not restricted to an above-described form. In particular, with respect to the handle, it is possible to adopt a form as shown in Modifications 1 to 3 shown in FIGS. 8 (a) to 8 (c). In addition, since the form of the club is the same as that of the club 12 in the tool 10 of the above embodiment in any of the first to third modifications, the same reference numerals as those of the tool 10 are given, and the description thereof is omitted. To do. Moreover, since the shape of the ring member in a front view also differs from the tool 10, only a front view is shown about the modifications 1-3.

(Modification 1)
As shown to Fig.8 (a), the handle 32 of the tool 30 which concerns on the modification 1 is carrying out the dart hole shape. A darling hole is a shape formed by connecting a first arc and an arc having a diameter larger than that of the first arc by two parallel straight lines.

  Here, in the handle 32 having a dart hole shape, the arc portion at the joint portion with the straight shaft portion 14 is the first arc portion 32A, and the arc portion having a larger diameter than the first arc portion 32A is the second arc portion. Of the two arcuate parts 32B, the two arcuate straight parts connecting the first arc part 32A and the second arc part 32B, one is called the first straight part 32C and the other is the second straight part 32D. To do.

  By making the radius of the inner circumference of the second arc portion 32B larger than the radius of the inner circumference of the second semicircular portion 20B (FIG. 3) of the tool 10, the holding method as shown in FIG. In this case, the burden on the finger can be reduced as compared with the tool 10. On the other hand, by making the width W2 of the handle 32 in the first linear portion 32C and the second linear portion 32D shorter than the width W1 of the tool 10, the compactness of the entire handle is not impaired.

  Furthermore, in the case of an operation performed by gripping the outer periphery of the handle 32 in the width direction and pulling the tool 30, the second arc portion 32B having a width wider than the first linear portion 32C and the second linear portion 32D portion, Since it functions as a slipper with respect to the handle 32 of the gripped hand, workability is improved.

(Modification 2)
As shown in FIG. 8B, the ring member constituting the handle 42 of the tool 40 according to the modified example 2 has a width Wx in the direction perpendicular to the axis X1 of the straight shaft portion 14 on the outer periphery thereof. It forms in the shape which increases gradually as it distances from the joining site | part (2nd edge part 14B of the straight shaft part 14) with the axial part 14. As shown in FIG. Further, in the ring member, an inner peripheral portion located on the opposite side to the joining portion is formed in a bulging portion 42 </ b> A that bulges out toward the straight shaft portion 14.

  By providing the bulging portion 42A, it is possible to reduce the burden on the finger in the case of holding as shown in FIG.

  Further, since the handle 42 has a shape in which the width Wx gradually increases as described above, in the case of work performed by pulling the tool 40, the entire gripped portion is used as a slip stopper for the gripped hand handle 42. Because it functions, workability is improved.

(Modification 3)
As shown in FIG. 8C, the handle 52 of the tool 50 according to the modified example 3 is such that the first straight portion 20C and the second straight portion 20D of the handle 20 of the tool 10 (FIG. 3) approach each other. It is curved and has a shape in which the central region of the handle 52 in the longitudinal direction (the direction of the axis X1) is constricted.

  Here, in the handle 52 of the tool 50, portions corresponding to the first semicircular portion 20A and the second semicircular portion 20B of the handle 20 of the tool 10 are respectively designated as the first semicircular portion 52A and the second semicircular portion. It will be referred to as part 52B. Further, a portion where the first straight portion 20C is bent is referred to as a first bending portion 52C, and a portion where the second straight portion 20D is bent is referred to as a second bending portion 52D.

  By forming a constricted central region in the longitudinal direction of the handle 52 (in the direction of the axis X1), the outer periphery including the constricted portion (the first curved portion 52C and the second curved portion 52D) of the handle 52 is widened. When gripped in the direction, the anti-skid function for the grip 52 of the gripped hand is exhibited in either direction in the direction of the axis X1. Thereby, for example, the handle 52 can be stably gripped in an operation that does not involve the operation of pulling the tool 50 as shown in FIG.

  As mentioned above, although the moving handrail attachment / detachment tool of the passenger conveyor based on this invention has been demonstrated based on embodiment and its modification, of course, this invention is not restricted to an above-described form, For example, the following forms It does not matter.

  (1) In the above embodiment and the first to third modifications thereof, the ring members constituting the handles 20, 32, 42, and 52 are formed by bending a round bar. The ring member may be produced by punching a plate material made of a metal material.

  (2) In the above embodiment and the first to third modifications thereof, both are joined by welding in a state where the second end portion 14B of the straight shaft portion 14 is attached to the outer periphery of the handle. Not only, but in a front view (FIGS. 3A and 8), the second end portion 14B of the straight shaft portion 14 is overlapped with a part of the handle, and both are joined by welding. It doesn't matter.

  (3) In the said embodiment, although the escalator was taken as an example as a passenger conveyor which attaches or detaches a moving handrail with the tool 10, the tool 10 is not restricted to an escalator, For example, other passenger conveyors, for example, a pallet type and a rubber belt type move Can also be used on the sidewalk. That is, the railing of the railing erected along the traveling path of the endless transport body of the moving sidewalk that circulates and travels the endless transport body composed of a plurality of pallets connected in an annular manner and the endless transport body composed of a rubber belt. Can also be used to attach and detach moving handrails.

  The moving handrail attaching / detaching tool for a passenger conveyor according to the present invention can be suitably used for attaching / detaching a moving handrail in an escalator, for example.

10, 30, 40, 50 Moving handrail attaching / detaching tool for passenger conveyor 12 Hook 14 14 Straight shaft portion 14A First end portion 14B Second end portion 16 Hook-shaped portion 20, 32, 42, 52 Handle

Claims (4)

A club including a straight shaft portion and a hook-shaped portion extending from the first end of the straight shaft portion and bent in a hook shape;
A handle joined to a second end portion of the straight shaft portion opposite to the first end portion;
Have
A moving handrail attaching / detaching tool for a passenger conveyor, wherein the handle comprises a ring member that is elongated and flat in the axial direction of the straight shaft portion.   The moving handrail attaching / detaching tool for a passenger conveyor according to claim 1, wherein the ring member has a track shape formed by connecting two semicircles with two parallel straight lines.   The ring member has a saddle hole shape formed by connecting a first arc and a second arc having a diameter larger than that of the first arc by two parallel straight lines, and corresponds to the first arc. The moving handrail attaching / detaching tool for a passenger conveyor according to claim 1, wherein a portion to be joined is joined to the straight shaft portion.   The ring member is formed in a shape in which the width in the direction perpendicular to the axis on the outer periphery gradually increases as the distance from the joint portion with the straight shaft portion increases, and is located on the side opposite to the joint portion. The moving handrail attaching / detaching tool for a passenger conveyor according to claim 1, wherein the peripheral portion is formed in a shape that bulges toward the straight shaft portion.

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