JP6176872B1 - Man conveyor device - Google Patents

Abstract

Kind Code: A1 A man conveyor device and a method for adjusting the tension of the moving handrail of the man conveyor device which can be easily adjusted quantitatively so that the pressing force to the moving handrail becomes an optimum value without using an expensive device. provide. An endless moving handrail 101 and a tension adjusting device 1 arranged opposite to the inner periphery thereof are provided. The tension adjusting device 1 is provided on a base portion 2 fixed to a base. A tension load portion 3 having a contact portion 11 in contact with the inner peripheral surface is attached. A pressing force adjusting mechanism 61 is detachably attached between the base portion 2 and the tension load portion 3. The pressing force adjusting mechanism 61 is attached to the tension load portion 3 side, and is attached to the elastic body 69 that applies a pressing force to the moving handrail 101 via the contact portion 11 by compression deformation and to the base portion 2 side so as to be separable. In addition, the elastic body 69 includes a compression length adjusting unit 63 that can be deformed to a predetermined compression length that optimizes the pressing force to the moving handrail 101. [Selection] Figure 2

Description

Embodiments of the present invention relates to a passenger conveyor equipment having a moving handrail as such escalators and automatic loading.

  Man conveyor devices such as escalators and autoloaders have a moving body such as a step that moves in a predetermined direction, and a moving handrail that moves in conjunction with the moving body. This moving handrail is configured in an endless manner, and it is necessary to adjust the tension so as to be optimum.

  Generally, an endless moving handrail is wound around a driving pulley and is sandwiched between pressing rollers. By rotating the driving pulley in a predetermined direction, the moving handrail is driven in the length direction by the frictional force between the driving pulley and the moving handrail. This endless moving handrail has a C-shaped cross section, and is wound around the drive pulley so that the C-shaped opening faces the endless inner side. A portion where the C-shaped opening travels downward so that the passenger can have a moving handrail is referred to as the forward path side. Moreover, the part which travels under the floor etc. with the opening facing upward is referred to as the return path side.

  A slack removing portion is formed on a part of such a moving handrail on the return path side. The moving handrail tension adjusting device is provided in the slack removing portion, and applies a downward pressing force to the moving handrail to give an appropriate tension and absorb the slack.

  FIG. 6 shows a conventional example of this tension adjusting device. In FIG. 6, the tension adjusting device 108 has contact rollers 111 a and 111 b that contact the inner peripheral surface (C-shaped opening) of the moving handrail 101, and this portion pushes the moving handrail 101 downward in the figure. Apply pressure. The tension adjusting device 108 is provided with elongated holes 112a and 112b. Bolts 113a and 113b are passed through these portions and fixed to a truss member 202 serving as a base for an escalator or the like.

  The tension adjusting method by the tension adjusting device 108 is performed in the following steps.

  [Step 1] The endless moving handrail is operated clockwise, and the slack of the moving handrail is collected in the slack removing portion facing the tension adjusting device 108.

  [Step 2] Stop the operation of the moving handrail.

  [Step 3] The bolts 113a and 113b fixing the tension adjusting device 108 are loosened or removed so that the tension adjusting device 108 can be freely displaced.

  [Step 4] The tension adjusting device 108 is pressed downward, and an appropriate pressing force is applied to the moving handrail 101 from the contact rollers 111a and 111b.

  [Step 5] The bolts 113a and 113b provided on the tension adjusting device 108 are tightened to fix the tension adjusting device 108.

  [Step 6] The operation of the moving handrail 101 is resumed.

  In such a tension adjusting method, if the pressing force applied to the moving handrail 101 in [Step 4] is too large, the tension of the moving handrail 101 becomes excessively large and the running resistance becomes excessive. If the traveling resistance of the moving handrail 101 becomes excessive, problems such as a rapid increase in wear and heat generation at each part and a shortened life of the moving handrail 101 occur.

  On the other hand, if the pressing force applied to the moving handrail 101 is too small, the sagging of the moving handrail 101 cannot be removed, and when the moving handrail 101 is driven counterclockwise, it is bent near the drive roller. When the moving handrail 101 travels in such a situation, the moving handrail 101 rubs against an end portion of a guide rail (not shown) and is violently worn, or a large vibration called knocking occurs.

  For this reason, it is important to appropriately adjust the pressing force applied to the moving handrail 101. However, in the adjustment method using the conventional tension adjusting device 108, the pressing force applied to the moving handrail 101 cannot be quantitatively known. For this reason, the application of pressing force relied on the experience and intuition of maintenance personnel.

  In some cases, a force gauge or the like is prepared in advance, the moving handrail 101 near the contact rollers 111a and 111b is pressed with the force gauge, and the force when the contact rollers 111a and 111b are separated is measured to estimate the pressing force. . However, in this case, the force when the contact rollers 111a and 111b are separated differs greatly between the two rollers, and it is necessary to repeat trial and error many times until the difference between these forces falls within the allowable range.

  As described above, the conventional tension adjusting device 108 has a problem that it is extremely difficult to quantitatively adjust the pressing force to an optimum value.

  As a means to solve this problem, a sound detection means is provided in the curved portion of the moving handrail, and the sound generated by the vibration generated in the curved portion in the knocking operation due to the looseness of the moving handrail tension or the tension of the moving handrail. It has been proposed to measure a sliding sound in which a moving handrail canvas surface rubs against a curved guide when it becomes large (see, for example, Patent Document 1).

  In addition, as another means, a through hole is provided in the center of an arcuate push guide that contacts the back of the handrail (moving handrail), a tension gauge is inserted into the through hole, and the back of the handrail is contacted. It has been proposed to measure the tension of the handrail (see, for example, Patent Document 2).

JP 2006-8388 A JP 2000-15946 A

  However, the former method requires a very expensive device such as an acoustic detection means, which greatly increases the cost. In the latter proposed method, it is necessary to measure the pressing force after attaching the tension adjusting device. For this reason, in order to adjust the pressing force to the optimum value, it was necessary to repeat the attachment of the tension adjusting device and the measurement of the pressing force many times, which took a lot of time.

The present invention is to provide that without passenger conveyor equipment which can be is easy to quantitatively adjusted to pressing force becomes the optimum value of the moving handrail to use an expensive apparatus.

A man conveyor device according to an embodiment of the present invention is a man conveyor device having an endless moving handrail and a tension adjusting device arranged to face the inner peripheral surface of the moving handrail, and the tension adjusting device Has a base portion fixed to the base, and an abutting portion in contact with the inner peripheral surface of the movable handrail, and is attached to the tension load portion and the tension load portion in a separable manner. An elastic body that applies a pressing force to the moving handrail through the abutting portion by compression deformation, and a separable attachment to the base portion, and the elastic body has a predetermined pressing force to the moving handrail. and a pressing force adjusting mechanism having a deformable compression length adjusting unit to the compression length, the tension load unit relative displacement possible with respect to the base portion, and a fixed state to prevent the relative displacement Operably configured, the tension load unit after pressing force adjustment by the pressing force adjusting mechanism characterized in that it is used in a fixed state to prevent the relative displacement.

  According to the above configuration, it is not necessary to use a very expensive device such as an acoustic detection means, and it is not necessary to repeat the installation of the tension adjusting device and the measurement of the pressing force many times. It can be adjusted quantitatively and easily so that the pressure becomes the optimum value.

It is a figure which shows the whole structure of the man conveyor apparatus which concerns on one Embodiment of this invention. It is a disassembled perspective view which shows the tension adjustment apparatus used for one Embodiment of this invention. It is a perspective view which shows the assembly state of the tension adjustment apparatus used for one Embodiment of this invention. It is sectional drawing of the tension adjustment apparatus used for one Embodiment of this invention. It is a front view which shows the attachment plate used for one Embodiment of this invention. It is a front view which shows the conventional tension adjusting device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the overall structure of the man conveyor apparatus according to this embodiment will be schematically described with reference to FIG.

  FIG. 1 shows an entire drive system of a moving handrail portion of a man conveyor device. This man conveyor device (referred to as an escalator) includes the man conveyor main body 100 and the tension adjusting device 1 shown in FIG. The man conveyor main body 100 has an endless moving handrail 101 that moves in conjunction with the moving body on the side of a moving body (steps and the like: not shown) for transporting passengers.

  The endless moving handrail 101 is wound around the driving pulley 103 of the driving device 102 and is sandwiched between the driving pulley 103 and the pressing roller 104. By rotating the driving pulley 103 in a predetermined direction, the driving pulley 103 is driven in the length direction by a frictional force with the moving handrail 101.

  The cross section of the moving handrail 101 is C-shaped. The part where the C-shaped opening travels downward so that the passenger can have the moving handrail 101 is referred to as the forward path side. Further, a portion in which the moving handrail 101 is reversed and the opening portion faces upward and travels under the floor or the like is referred to as a return path side. The moving handrail 101 is driven along a guide rail (not shown). In FIG. 1, a guide rail is installed from the X part on the forward path side to the Y part counterclockwise in the figure.

  A front guide roller 105 and a rear guide roller 106 are installed before and after the drive pulley 103. These guide rollers 105 and 106 guide the moving handrail 101 so as to be smoothly deformed without bending at a steep angle when entering the driving device 102.

  The left portion of the moving handrail 101 on the return path side is a slack removing portion 107. The slack removing unit 107 is provided with a tension adjusting device 1 which will be described later. By applying a pressing force to the moving handrail 101 in the downward direction in the figure, an appropriate tension is applied to the moving handrail 101 and the slack is absorbed. Before and after the sagging portion 107, sagging portion guide rollers 109 and 110 are installed so that when the moving handrail 101 enters the sagging portion 107, it smoothly deforms without bending at a steep angle. It has become.

  2 is an exploded perspective view of the tension adjusting device 1 attached to the mounting plate 51, FIG. 3 is a perspective view showing an assembled state of the tension adjusting device 1, FIG. 4 is a sectional view of the tension adjusting device 1, and FIG. FIG.

  As shown in FIGS. 2 and 3, the tension adjusting device 1 includes a base portion 2, a tension load portion 3, and a pressing force adjusting mechanism 61.

  The base portion 2 is fixed to a base such as a truss member (not shown) via the mounting plate 51. As shown in FIG. 5, the mounting plate 51 is provided with bent portions 53a and 53b at both ends thereof. Appropriate means for fixing the mounting plate 51 to a truss member (not shown) serving as a base is provided in the bent portions 53a and 53b. The mounting plate 51 is provided with inclined elliptical holes 52a and 52b. The elliptical holes 52 a and 52 b are used for mounting the base portion 2.

  As shown in FIGS. 2 and 3, the base portion 2 is provided with two elliptical holes 5 a and 5 b for fixing in the vertical direction. Fixing bolts 6a and 6b are attached to the fixing elliptical holes 5a and 5b. The fixing bolts 6a and 6b are passed through the elliptical holes 52b provided in the mounting plate 51 and screwed with nuts (not shown) arranged on the rear surface. The base portion 2 is fixed to the mounting plate 51.

  In the figure, the base portion 2 is fixed to the mounting plate 51 using the elliptical hole 52b. However, the elliptical hole 52a can be used depending on the position where the tension adjusting device 1 is installed.

  The tension load portion 3 has a contact portion 11 that contacts an inner peripheral surface (upper surface in the drawing) of the moving handrail 101, and is attached to the base portion 2 as described above. In this embodiment, rollers (hereinafter referred to as contact rollers 11 a and 11 b) configured to be rotatable via shafts 10 a and 10 b are used as the contact portions 11 in the vicinity of the left and right ends of the tension load portion 3. Therefore, a pressing force is applied to the moving handrail 101.

  Further, vertical elliptical holes 12 a and 12 b are provided in the vicinity of the left and right ends of the tension load portion 3. These elliptical holes 12 a and 12 b are used for fixing the tension load part 3 to the base part 2. Studs 9a and 9b screwed into screw holes (not shown) provided at two places on the left and right sides of the base portion 2 pass through these elliptical holes 12a and 12b, and nuts 13a, 13b is screwed. Therefore, the tension load portion 3 can be integrally fixed to the base portion 2 by tightening the nuts 13a and 13b. On the contrary, when the nuts 13a and 13b are loosened, the tension load portion 3 can be guided in the vertical direction along the elliptical holes 12a and 12b. Further, the outer diameters of the studs 9a and 9b are smaller than the width of the elliptical holes 12a and 12b, and the tension load part 3 can be inclined relative to the base part 2 by the gap. ing.

  The pressing force adjustment mechanism 61 includes an elastic body 69 and a compression length adjustment unit 63. The elastic body 69 applies a pressing force to the moving handrail 101 through the contact rollers 11a and 11b by compression deformation, and is detachably attached to the tension load portion 3 side. The compression length adjusting unit 63 deforms the elastic body 69 to a predetermined compression length that optimizes the pressing force to the moving handrail 101, and is detachably attached to the base unit 2 side. Hereinafter, these detailed configurations will be described with reference to FIGS.

  The compression length adjustment unit 63 includes an upper support 67 formed by bending a plate material into an L shape, and a female screw portion 65 is provided near the tip of the horizontal surface forming the L shape, and the compression length adjustment is provided here. Bolt 66 for use is screwed. Further, as shown in FIG. 2, an upper connecting hole 68 is provided on the L-shaped vertical surface of the upper support 67, and a base part protrusion 62 provided at the upper center of the base part 2, As shown in FIG. 3 and FIG.

  A lower support 71 formed by bending a plate material into an L shape is disposed below the upper support 67 described above. As shown in FIG. 2, an elastic body 69 is installed in the vertical direction at a substantially central portion of the L-shaped horizontal surface of the lower support 71, and the L-shaped vertical surface of the lower support 71 is as shown in FIG. A lower connection hole 72 is provided, and the tension load portion projection 73 provided at substantially the central portion of the lower portion of the tension load portion 3 and a rotatable and separable fit as shown in FIGS. Match.

  As the elastic body 69, a cylindrical one having a hollow inner cylinder portion, for example, a metal coil spring (hereinafter simply referred to as a spring 69) is used. At both ends (upper and lower ends in the figure) of the spring 69, press members 70 and 74 that are in contact with the both end surfaces are provided. That is, the lower end spring pressing member 74 is fitted to the lower end of the spring 69, and the lower surface thereof is fixed to the concave portion at the substantially central portion of the L-shaped horizontal surface of the lower support 71 as described above. An upper end spring pressing member 70 is fitted to the upper end of the spring 69. The upper surface of the upper end spring pressing member 70 is in contact with the tip of a compression length adjusting bolt 66 (hereinafter referred to as a spring length adjusting bolt 66) of the compression length adjusting portion 63 described above.

  As described above, the spring length adjusting bolt 66 is screwed with the female screw portion 65 provided near the tip of the L-shaped horizontal surface of the upper support 67, and the tip thereof is the upper surface of the upper end spring pressing member 16. The head is located above the female screw portion 65. By rotating the spring length adjusting bolt 66, the upper end spring pressing member 70 in contact with the tip thereof is displaced in the vertical direction, and the length of the spring 69 changes accordingly.

  Here, between the lower end spring pressing member 74 and the upper end spring pressing member 70, there is an interval L as shown in FIG. When the spring length adjusting bolt 66 is rotated and the length of the spring 69 is shortened, the clearance L is decreased accordingly, so that the lower surface of the lower end spring pressing member 74 is in contact with the lower surface of the upper end spring pressing member 70. become. The free length of the spring 69 and the dimensions of the lower end spring pressing member 74 and the upper end spring pressing member 70 are determined so that the force generated by the spring 69 at this time becomes the optimum pressing force applied to the moving handrail 101. It has been.

  That is, when the spring 69, which is an elastic body, is deformed to a predetermined compression length where the lower end spring pressing member 74 and the upper end spring pressing member 70 are in contact with each other, the pressing force to the moving handrail 101 becomes optimal. Set the spring constant as follows.

  Here, the contact portion 31 includes a plurality of contact rollers 11 a and 11 b provided along the length direction of the moving handrail 101, and the contact rollers 11 a and 11 b cross the moving handrail 101. The line connecting the central portions along the direction (the left-right direction in FIG. 4) and the central axis of the spring 69, which is an elastic body, are substantially perpendicular to the transverse direction of the moving handrail 101 and are on the same plane along the moving direction. Configure to be placed on top. With this configuration, the force generated by the spring 69 and the reaction force received by the contact rollers 11a and 11b from the moving handrail 101 act on the same plane. The extra moment stops working.

  Next, the operation of the first tension adjustment method when the man conveyor device is skirted will be described for each adjustment step.

  [Step 1] The moving handrail 101 is driven in the upward direction (clockwise in FIG. 1). Thereby, the slack of the moving handrail 101 gathers in the slack removing unit 107.

  [Step 2] The operation of the moving handrail 101 is stopped.

  [Step 3] With the nuts 13a and 13b for fixing the tension load part loosened, the tension load part 3 is attached to the studs 9a and 9b, and the tension adjusting device 1 with the pressing force adjusting mechanism 61 removed is prepared. .

  [Step 4] The tension adjusting device 1 is disposed at an appropriate position facing the slack removing portion 107, and the base portion 2 is attached to the mounting plate 51 so that the contact rollers 11a and 11b are substantially perpendicular to the moving handrail 101. Install with base fixing bolts 6a and 6b. At this time, if necessary, the base 2 is tilted and attached.

  [Step 5] A compression length adjusting portion 63 constituting the pressing force adjusting mechanism 61 is attached to the base portion 2 side. That is, the upper connection hole 68 provided in the L-shaped vertical surface of the upper support 67 to which the bolt 66 for adjusting the compression length is attached is fitted into the base part protrusion 62 provided in the upper center of the base part 2. Combine. Further, a lower connecting hole 72 provided in a vertical surface of the lower support 71 disposed below and facing the upper support 67 is provided with a tension load provided in a substantially central portion of the lower portion of the tension load portion 3. The upper end of the upper end spring pressing member 70 of the spring 69 provided on the lower support 71 is attached so as to face the tip of the spring length adjusting bolt 66.

  [Step 6] The spring length adjusting bolt 66 is rotated to compress the spring 69, and the lower surface of the upper end spring pressing member 70 is brought into contact with the upper surface of the lower end spring pressing member 74. At this time, the spring length of the spring 69 is the optimum length, and the pressing force acting on the moving handrail 101 automatically becomes the optimum value. Further, since the tension load portion 3 can be tilted with respect to the base portion 22 around the tension load portion protrusion 73, the pressing force applied to the moving handrail 101 by the two contact rollers 11a and 11b. If there is a difference between the two, the tension load portion 3 is inclined to eliminate the difference, and the pressing force from the two contact rollers 11a and 11b can be made equal.

  [Step 7] The nuts 13a and 13b for fixing the tension load portion are tightened to fix the tension load portion 3 to the base portion 22. Thereby, the tension load part 3 can be fixed to the base part 2 in a state where an optimum pressing force is applied to the moving handrail 101 from the tension adjusting device 1.

  [Step 8] The pressing force adjusting mechanism 61 is removed.

  [Step 7] The operation of the moving handrail 101 is resumed.

  The above steps describe the tension adjustment method when the man conveyor is first installed. When the man conveyor is operated for a long time, the length of the moving handrail 101 changes, and the initially set pressing force changes. In this case, at the time of inspection, after performing [Step 1] and [Step 2], the tension load portion fixing nuts 13a and 13b are loosened, and the operations after [Step 5] may be performed.

  That is, (1) the moving handrail 101 is operated in the upward direction, (2) the operation of the moving handrail 101 is stopped, (3) the tension load portion fixing nuts 13a and 13b are loosened, and (4) the pressing force adjusting mechanism 61 is operated. (5) Rotate the spring length adjusting bolt 66 until the lower surface of the upper end spring retainer 70 just contacts the upper surface of the lower end spring retainer 74. (6) Retighten the tension load fixing nuts 13a and 13b. (7) If a very simple operation of removing the pressing force adjusting mechanism 61 is performed, the optimal pressing force can be added to the moving handrail 101 again.

  In addition, after adjusting the pressing force, the pressing force adjusting mechanism 61 can be removed and brought back, so that it can be used for other man conveyors.

  In the above description, the spring 69 is used for the pressing force adjusting mechanism 61. However, instead of the spring 69, an elastomer material such as cylindrical rubber or resin may be used.

  Thus, according to the present embodiment, it is possible to provide a man conveyor device and a tension adjustment method that can be easily adjusted quantitatively so that the pressing force becomes an optimum value without using an expensive device. it can.

  Although several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Tension adjustment apparatus 2 ... Base part 3 ... Tension load part 69 ... Elastic body 11 ... Contact part 11a, 11b ... Roller 61 ... Pressing force adjustment mechanism 63 ... Compression length adjustment part 66 ... Compression length adjustment bolt 69 ... Elastic body 70, 74 ... Presser member 101 ... Moving handrail

Claims (6)

A man conveyor device having an endless moving handrail and a tension adjusting device arranged to face the inner peripheral surface of the moving handrail,
The tension adjusting device includes:
A base portion fixed to the base,
A tension load part attached to the base part, having a contact part in contact with the inner peripheral surface of the moving handrail;
An elastic body that is separably attached to the tension load portion and applies a pressing force to the moving handrail via the abutment portion by compression deformation, and a separably attached to the base portion, and moves the elastic body A pressing force adjusting mechanism having a compression length adjusting portion that can be deformed to a predetermined compression length at which the pressing force to the handrail is optimal ,
The tension load portion is configured to be relatively displaceable with respect to the base portion and to be operated in a fixed state that prevents the relative displacement, and the tension load portion is configured to be relatively movable after adjusting the pressing force by the pressing force adjusting mechanism. A man conveyor device characterized by being used in a fixed state in which displacement is prevented .   The elastic body has a cylindrical shape having hollow inner cylindrical portions, each having a pressing member in contact with both end faces thereof, and the compression length adjusting portion is a compression capable of adjusting an axial compression length of the elastic body. The predetermined compression length of the elastic body is a state in which the ends of the shaft portions protruding into the inner cylinder portion of the pressing member provided on both end surfaces of the elastic body have length adjustment bolts abutting each other. The man conveyor apparatus according to claim 1, wherein the man conveyor apparatus is set to be   A plurality of the contact portions are provided along the length direction of the moving handrail, and a line connecting the center portions of the contact portions along the transverse direction of the moving handrail and a center axis line of the elastic body are provided. The man conveyor device according to claim 1, wherein the man conveyor device is disposed on a same plane that is substantially perpendicular to a transverse direction of the moving handrail and along the moving direction of the moving handrail.   The man conveyor apparatus according to any one of claims 1 to 3, wherein the elastic body is a metal coil spring or an elastomer material.   The man conveyor apparatus according to any one of claims 1 to 4, wherein the contact portion is configured by a roller. The attachment portion of the pressing force adjusting mechanism to the tension load portion can be rotatably connected to a substantially central portion of the tension load portion. The man conveyor device described in 1.

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