JP2016160086A - Man conveyor device and tension adjustment method of moving rail of the man conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a man conveyor device which can quantitatively adjust a pressing force to a moving rail so that the pressing force reaches an optimum value without using an expensive device, and a tension adjustment method of a moving rail of the man conveyor device.SOLUTION: A man conveyor device comprises an endless moving rail 101, and a tension adjusting device 1 which is arranged oppositely to an internal periphery of the moving rail. In the tension adjusting device 1, a tension load part 3 having an abutment part 11 abutting on an internal peripheral face of the moving rail 101 is attached to a base part 2 which is fixed to a base table. An elastic body 4 is interposed between the base part 2 and the tension load part 3, and applies a pressing force to the moving rail 101 via the abutment part 11 by the compressive deformation of the elastic body. A compression length adjusting mechanism 17 which is deformable to a prescribed compression length whose pressing force to the moving rail 101 becomes optimum is arranged at the elastic body 4.SELECTED DRAWING: Figure 3

Description

  Embodiments of the present invention relate to a man conveyor device having a moving handrail such as an escalator and an autoload, and a method for adjusting the tension of the moving handrail of the man conveyor device.

  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. The cross section of this moving handrail is C-shaped, and the portion where the C-shaped opening travels downward is referred to as the forward path side so that the passenger can hold the moving handrail. 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. 9 shows a conventional example of this tension adjusting device. In FIG. 9, 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 rapid increase in wear and heat generation at each part and shortening of the 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.

  Thus, it is important to appropriately adjust the pressing force applied to the moving handrail 101. However, the conventional adjustment method using the tension adjusting device 108 cannot know the pressing force applied to the moving handrail 101. For this reason, the addition of the pressing force depends only on the experience and intuition of maintenance personnel, and there is a problem that it cannot be quantitatively adjusted 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. The handrail tension is measured (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 provides a man conveyor device that can be easily adjusted quantitatively so that the pressing force to the moving handrail becomes an optimum value without using an expensive device, and a tension adjusting method for the moving handrail of the man conveyor device Is to provide.

  A man conveyor device according to an embodiment of the present invention has a man conveyor body having an endless moving handrail that moves in conjunction with the moving body on a side portion of the moving body, and an inner periphery of the moving handrail. A tension adjusting device disposed on the base, the tension adjusting device having a base portion fixed to a base and an abutting portion in contact with an inner peripheral surface of the movable handrail, and a tension attached to the base portion An elastic body that is interposed between the load portion, the base portion, and the tension load portion, and that compresses and deforms the pressing portion to the movable handrail through the contact portion; and the elastic body to the movable handrail. And a compression length adjusting mechanism that can be deformed to a predetermined compression length at which the pressing force is optimal.

  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 perspective view which shows the tension adjustment apparatus used for one Embodiment of this invention. It is a front view which shows the moving handrail press state by the tension adjustment apparatus used for one Embodiment of this invention. It is a front view which shows the base part 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 perspective view which shows the tension adjustment apparatus used for other embodiment of this invention. It is a cross-sectional view of a tension adjusting device used in another embodiment of the present invention. It is a disassembled perspective view which shows the relationship between the components which comprise the tension adjustment apparatus used for other 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 Embodiment>
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 called 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 a perspective view showing a state in which the above-described tension adjusting device 1 is attached to the attachment plate 51. FIG. 3 is a front view showing a lying state in which a pressing force is applied to the moving handrail 101 by the tension adjusting device 1. FIG. FIG. 5 is a front view of the base portion 2 of the tension adjusting device 1, and FIG. 5 is a front view of the mounting plate 51.

  As shown in FIGS. 2 and 3, the tension adjusting device 1 includes a base portion 2, a tension load portion 3, an elastic body 4, and a compression length adjusting mechanism 17.

  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 FIG. 4, the base portion 2 is provided with two elliptical holes 5a and 5b for fixing in the vertical direction. As shown in FIGS. 2 and 3, fixing bolts 6 a and 6 b are attached to the fixing elliptic holes 5 a and 5 b, and the elliptical holes 52 b provided in the mounting plate 51 are penetrated and arranged on the back surface thereof. The base portion 2 is fixed to the mounting plate 51 by screwing with a nut (not shown).

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

  Further, screw holes 9a and 9b are provided at two places on the left and right sides of the base portion 2 as shown in FIG. These screw holes 9 a and 9 b are used for fixing the tension load portion 3.

  As shown in FIG. 3, the tension load portion 3 has a contact portion 11 that comes into contact with the 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 that are configured to roll around the shafts 10a and 10b (hereinafter referred to as contact rollers 11a and 11b) are used as the contact portions 11 in the vicinity of the left and right ends of the tension load portion 3. 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. Fixing bolts 13a and 13b are attached to the elliptical holes 12a and 12b, and are screwed into the screw holes 9a and 9b provided in the base portion 2. That is, the tension load portion 3 can be integrally fixed to the base portion 2 by tightening the fixing bolts 13a and 13b.

  The elastic body 4 is interposed between the base portion 2 and the tension load portion 3 and applies a pressing force to the moving handrail 101 through the contact rollers 11a and 11b described above due to the compression deformation thereof. Near the center of the upper portion of the base portion 2, a horizontal bent portion 7 is provided, and a screw hole 8 constituting a compression length adjusting mechanism described later is formed in the approximate center. Further, a bent portion 14 in the horizontal direction is also provided near the center of the tension load portion 3. The elastic body 4 is installed between the bent portions 7 and 14.

  As the elastic body 4, a cylindrical one having a hollow inner cylinder portion, for example, a metal coil spring (hereinafter simply referred to as a spring 4) is used. At both ends (upper and lower ends in the figure) of the spring 4, presser members 15 and 16 that are in contact with both end surfaces are provided. That is, the lower end spring pressing member 15 is fitted to the lower end of the spring 4, and the lower surface thereof is fixed to the upper surface of the bent portion 14 provided in the tension load portion 3. An upper end spring pressing member 16 is fitted to the upper end of the spring 4. The upper surface of the upper end spring pressing member 16 is in contact with the tip of a length adjusting bolt 17a (hereinafter described as a spring length adjusting bolt) 17a of the elastic body 4 that functions as the compression length adjusting mechanism 17 described above.

  The spring length adjusting bolt 17 a is screwed into a screw hole 8 provided in the bent portion 7 of the base portion 2, and the tip thereof is in contact with the upper surface of the upper end spring pressing member 16, and the head is above the screw hole 8. Protruding. By rotating the spring length adjusting bolt 17a, the upper end spring pressing member 16 in contact with the tip thereof is displaced in the vertical direction, and the length of the spring 4 changes accordingly.

  That is, the spring length adjusting bolt 17a screwed into the screw hole 8 functions as a compression length adjusting mechanism 17 that can deform the spring 4 that is an elastic body to a predetermined compression length. Here, the spring constant is set so that the pressing force to the moving handrail 101 is optimal when the spring 4 which is an elastic body is deformed to the predetermined compression length described above.

  Next, the operation of the first tension adjustment method when the man conveyor device is attached 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] The tension adjusting device 1 is prepared in a state where the fixing bolts 13a and 13b of the tension load portion 3 shown in FIGS. 2 and 3 are tightened to fix the tension load portion 3 to the base portion 2.

[Step 4] The tension adjusting device 1 is placed at an appropriate position facing the slack removing portion 107, and a slightly larger pressing force is applied to the moving handrail 101 via the contact rollers 11a and 11b. In this state, the fixing bolts 6a and 6b are passed through the elliptical holes 5a and 5b and the elliptical hole 52b or the elliptical hole 52a, and screwed into a nut (not shown) disposed on the back surface of the mounting plate 51 to be tightened. Thereby, the base part 2 is fixed to the base (not shown) via the mounting plate 51. At this time, if necessary, the tension adjusting device 1 is tilted and attached so that the pressing force is evenly applied to the moving handrail 101 from the two contact rollers 11a and 11b.

[Step 5] Loosen the fixing bolts 13a and 13b of the tension load section 3. At this time, the tension load unit 3 receives a force in the vertical direction due to the influence of the pressing force applied to the moving handrail 101. Since the fixing bolts 13a and 13b penetrate the elliptical holes 12a and 12b, the tension load part 3 is guided by the fixing bolts 13a and 13b and the elliptical holes 12a and 12b and moves in the vertical direction.

[Step 6] The spring length adjusting bolt 17a is rotated to adjust the spring 4 to a predetermined length. Since the spring constant and the free length of the spring 4 are known, an optimum pressing force can be applied to the moving handrail 101 by adjusting the spring 4 to have a predetermined length.

[Step 7] Tighten the fixing bolts 13a and 13b of the tension load part, and fix the tension load part 3 to the base part 2. As a result, the contact rollers 11 a and 11 b are fixed to the base portion 2 with an optimal pressing force applied to the moving handrail 101.

[Step 8] The operation of the moving handrail 101 is resumed.

  The above steps describe the first tension adjustment method when the man conveyor is 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, what is necessary is just to perform operation after said [Step 1], [Step 2], and [Step 5] at the time of inspection. That is, (1) The moving handrail 101 is driven in the upward direction. (2) The operation of the moving handrail 101 is stopped. (3) Loosen the fixing bolts 13a and 13b of the tension load part 3. (4) The spring length adjusting bolt 17a is rotated to adjust the spring 4 to a predetermined length. (5) Tighten the fixing bolts 13a and 13b of the tension load part 3 again.

  By performing such a simple operation, an optimal pressing force can be added to the moving handrail 101 again.

  In the above description, the metal coil spring is exemplified as the elastic body 4 interposed between the base portion 2 and the tension load portion 3, but the present invention is not limited to this, and the hollow inner cylinder portion As long as it has a cylindrical shape, an elastomer material such as rubber or resin may be used.

  As described above, according to the present embodiment, a man conveyor device and a method for adjusting the tension of the moving handrail can be easily adjusted quantitatively so that the pressing force is optimum and value without using an expensive device. Can be provided.

<Second Embodiment>
The second embodiment will be described with reference to FIGS. The overall structure of the man conveyor device is substantially the same as that of the first embodiment shown in FIG. 1, and instead of the tension adjusting device 1, a tension adjusting device 21 having a new configuration is used in this embodiment. ing. Further, the mounting plate 51 for attaching the tension adjusting device 21 to the base is the same as that in the first embodiment, so the numbers related thereto are the same as those in the first embodiment.

  6 is a perspective view illustrating a state in which the tension adjusting device 21 is attached to the mounting plate 51 and a pressing force is applied to the moving handrail 101. FIG. 7 is a perspective view illustrating the pressing force applied to the moving handrail 101 by the tension adjusting device 21. FIG. 8 is an exploded perspective view showing the interrelationship of the components constituting the tension adjusting device 21.

  As shown in FIGS. 6 and 7, the tension adjusting device 21 also includes a base portion 22, a tension load portion 23, an elastic body 24, and a compression length adjusting mechanism 37.

  The base portion 22 is fixed to a base such as a truss member (not shown) via the mounting plate 51. As shown in FIG. 8, the base portion 22 is provided with two fixing elliptical holes 25a and 25b in the vertical direction. The fixing bolts 26a and 26b (not visible in FIG. 6) shown in FIGS. 6 and 8 are attached to the fixing elliptic holes 25a and 25b, and pass through the elliptic holes 52b provided in the mounting plate 51. Then, the base portion 22 is fixed to the mounting plate 51 by screwing with a nut (not shown) arranged on the back surface thereof.

  Further, screw holes 29a and 29b are provided at two places on the left and right sides of the base portion 22, as shown in FIG. These screw holes 29 a and 29 b are used for fixing the tension load portion 23.

  As shown in FIG. 6, the tension load portion 23 includes a contact portion 31 that is in contact with the inner peripheral surface (upper surface in the drawing) of the moving handrail 101. As the abutment portion 31, rollers (hereinafter, referred to as abutment rollers 31 a and 31 b) configured to be able to roll by shafts 30 a and 30 b are used in the vicinity of the left and right ends of the tension load portion 23. A pressing force is applied to.

  The tension load portion 23 is attached to the base portion 22, and is configured such that the attachment angle with respect to the base portion 22 can be changed. That is, as shown in FIG. 8, a hole 38 is provided near the center of the tension load portion 23. A shaft 39 is welded to the hole 38, and a receiving portion (hereinafter described as a spring receiving portion) 34 that receives a lower end of the elastic body 24 described later is rotatably attached to the shaft 39. The spring receiving portion 34 is provided with a hole 40 for attaching a lower end spring pressing member 35 described later. With this configuration, as will be described later, the attachment angle of the tension load portion 23 with respect to the base portion 22 can be changed.

  Further, vertical elliptical holes 32 a and 32 b are provided near the left and right ends of the tension load portion 23. These elliptical holes 32 a and 32 b are used for fixing the tension load portion 23 to the base portion 22. That is, as shown in FIG. 6, the fixing bolts 33 a and 33 b of the tension load portion 23 are attached to the elliptical holes 32 a and 32 b and screwed into the screw holes 29 a and 29 b provided in the base portion 22. . That is, the tension load portion 23 can be integrally fixed to the base portion 22 by tightening the fixing bolts 33 a and 33 b of the tension load portion 23. On the contrary, when the fixing bolts 33a and 33b are loosened, the tension load portion 23 can be guided in the vertical direction along the fixing elliptic holes 32a and 32b.

  Here, the outer diameters of the fixing bolts 33a and 33b are smaller than the widths of the elliptical holes 32a and 32b, and the tension load portion 23 is inclined with respect to the base portion 22 about the shaft 39 by the clearance. Can do. That is, as described above, the attachment angle of the tension load portion 23 to the base portion 22 can be changed.

  The elastic body 24 is interposed between the base portion 22 and the tension load portion 23, and applies a pressing force to the moving handrail 101 through the contact rollers 31a and 31b described above due to the compression deformation thereof. Here, a bent portion 27 in the horizontal direction is integrally attached in the vicinity of the upper center of the base portion 22, and a screw hole 28 constituting a compression length adjusting mechanism 37, as will be described later, is provided at the approximate center. Is provided. The bent portion 27 faces the above-described spring receiving portion 34 on the tension load portion 23 side. The elastic body 24 is installed between the bent portion 27 and the spring receiving portion 34.

  As the elastic body 24, for example, a cylindrical coil spring having a hollow inner cylinder portion (hereinafter simply referred to as a spring 24) is used. At both ends (upper and lower ends in the figure) of the spring 24, press members 35 and 36 that are in contact with both end surfaces are provided. That is, the lower end spring pressing member 35 is fitted to the lower end of the spring 24, and the lower surface thereof is welded to the hole 40 of the spring receiving portion 34 provided in the tension load portion 23 as shown in FIG. The spring receiver 34 is fixed to the upper surface. Further, an upper end spring pressing member 36 is fitted to the upper end of the spring 4, and the upper surface thereof is in contact with the tip of a length adjusting bolt (hereinafter, referred to as a spring length adjusting bolt) 37 a of the elastic body 24. ing.

  The spring length adjusting bolt 37 a is screwed into a screw hole 28 provided in the bent portion 27 of the base portion 32, and the tip thereof is in contact with the upper surface of the upper end spring pressing member 36, and the head is above the screw hole 28. Protruding. A locking nut 41 is screwed onto the spring length adjusting bolt 37a. The locking nut 41 is attached immediately above the screw hole 28 of the bent portion 27. By tightening the locking nut 41, the rotation of the spring length adjusting bolt 37a is prevented, and the length of the spring 24 is always constant. When the locking nut 41 is loosened, the spring length adjusting bolt 37a can be rotated. By rotating the spring length adjusting bolt 37a, the upper end spring pressing member 36 in contact with the tip thereof is displaced in the vertical direction, and the length of the spring 4 changes accordingly.

  That is, the spring length adjusting bolt 37a screwed into the screw hole 28 functions as a compression length adjusting mechanism 37 that can deform the spring 24, which is an elastic body, to a predetermined compression length. Here, the spring constant is set so that the pressing force to the moving handrail 101 is optimal when the spring 4 which is an elastic body is deformed to the predetermined compression length described above.

  Here, between the lower end spring pressing member 35 and the upper end spring pressing member 36 between the shaft end tips protruding into the inner cylindrical portion of the spring 24, there is an interval L at the beginning of attachment as shown in FIG. When the spring length adjusting bolt 37a is rotated and the length of the spring 24 is shortened, the interval L decreases accordingly, and the lower surface of the upper end spring pressing member 36 contacts the upper surface of the lower end spring pressing member 35. The force generated by the spring 24 at this time is applied as a pressing force to the moving handrail 101. The free length of the spring 24 and the lower end spring pressing member 35 and the upper end spring pressing member 36 are adjusted so that the pressing force is optimum. Set the dimensions.

  That is, the spring length of the holding members 35, 36 provided on both end surfaces of the spring 24 that is an elastic body when the tip ends of the shafts protruding into the inner cylindrical portion of the spring 24 come into contact with each other is reduced to the moving handrail 101. It is set so that the pressing force is a predetermined compression length that is optimal.

  Here, the contact portion 31 includes a plurality of contact rollers 31 a and 31 b provided along the length direction of the movable handrail 101, and the contact rollers 31 a and 31 b cross the movable handrail 101. The line connecting the central portions along the direction (the left-right direction in FIG. 7) and the central axis of the spring 24, 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 24 and the reaction force received by the contact rollers 31a and 31b from the moving handrail 101 act on the same plane. The extra moment stops working.

  This configuration can be similarly applied to the arrangement configuration of the elastic body 4 and the contact rollers 11a and 11b in the first embodiment.

  Next, the initial tension adjusting method and the operation at that time when the man conveyor apparatus is installed 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] The tension load portion 23 is attached to the base portion 22 with the fixing bolts 33a and 33b loosened. In addition, the tension adjusting device 21 is prepared in a state where the locking nut 41 is loosened and the spring length adjusting bolt 37a is rotatable.

[Step 4] The tension adjusting device 21 is attached to the attachment plate 51 with the fixing bolts 26a and 26b so that the contact rollers 31a and 31b hit the moving handrail 101 evenly. At this time, if necessary, the tension adjusting device 21 is tilted and attached.

[Step 5] The spring length adjusting bolt 37a is rotated until the lower surface of the upper end spring pressing member 36 contacts the upper surface of the lower end spring pressing member 35. By this operation, the length of the spring 24 which is an elastic body becomes a predetermined length, and the pressing force acting on the moving handrail 101 automatically becomes an optimum value. Further, since the tension load portion 23 can be inclined with respect to the base portion 22 around the shaft 39, there is a difference in the pressing force that the two contact rollers 31a and 31b act on the moving handrail 101. In some cases, the tension load portion 23 is tilted to eliminate the difference, and the pressing force applied by the two contact rollers 31a and 31b can be equalized.

[Step 6] Tension load portion fixing bolts 33a and 33b are tightened to fix the tension load portion 23 to the base portion 22. As a result, the tension load portion 23 can be fixed to the base portion 22 with an optimal pressing force applied to the moving handrail 101 from the tension adjusting device 21. Further, the locking nut 41 is tightened to prevent the spring length adjusting bolt 37a from rotating.

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

  The above steps describe the initial tension adjustment method when the man conveyor device is installed. When the man conveyor device is operated for a long time, the length of the moving handrail 101 changes, and the initially set pressing force changes. In this case, after performing [Step 1] and [Step 2] at the time of inspection, the tension load portion fixing bolts 33a and 33b and the locking nut 41 are loosened, and the spring length adjusting bolt 37a is moved to the lower end. After the spring pressing member 35 and the upper end spring pressing member 36 are separated from each other by a predetermined distance, the operations after [Step 5] may be performed.

  That is, (1) The moving handrail 101 is driven in the upward direction. (2) The operation of the moving handrail 101 is stopped. (3) The tension load portion fixing bolts 33a and 33b and the locking nut 41 are loosened, and the spring length adjusting bolt 37a is separated from the lower end spring pressing member 35 and the upper end spring pressing member 36 by a predetermined distance. (4) The spring length adjusting bolt 37a is rotated until the lower surface of the upper end spring pressing member 36 just contacts the upper surface of the lower end spring pressing member 35. (5) Tighten the tension load fixing bolts 33a and 33b and the locking nut 41 again.

  As described above, the optimum pressing force can be applied again to the moving handrail 101 by a simple operation.

  In the above description, the tension adjusting device 21 has been described as having a structure in which the base portion 22 and the tension load portion 23 are connected by the spring 24. However, instead of the spring 24, an elastomer material such as a cylindrical rubber or resin is used. It may be used.

  As described above, the present embodiment also provides a man conveyor device capable of quantitatively adjusting the pressing force to an optimum value without using an expensive device, and a tension adjusting method for the moving handrail. can do.

  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 1,21 ... Tension adjusting device 2,22 ... Base part 3,23 ... Tension load part 4,24 ... Elastic body 11,31 ... Abutting part 11a, 11b, 31a, 31b ... Roller 15,16,35,36 ... Receiving members 17, 37 ... compression length adjusting mechanism 41 ... locking nut 101 ... moving handrail

A man conveyor device according to an embodiment of the present invention has a man conveyor body having an endless moving handrail that moves in conjunction with the moving body on a side portion of the moving body, and an inner periphery of the moving handrail. and a deployed tension adjustment device Te, the tension adjusting device includes a base portion fixed to the base, the length direction of the moving handrail to roll in contact with the inner peripheral surface of the moving handrail A plurality of abutting rollers provided along the tension, and a tension load configured to change the mounting angle with respect to the base portion so that the pressing force applied to the moving handrail of the abutting rollers is equal. And an elastic body that is interposed between the base portion and the tension load portion and compresses and deforms to apply a pressing force to the moving handrail through the contact roller , and the elastic body is applied to the moving handrail. The pressing force is optimal Characterized in that it comprises a predetermined compression length deformable compression length adjusting mechanism that.

Claims (10)

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 interposed between the base portion and the tension load portion, and applies a pressing force to the movable handrail through the contact portion by the compression deformation;
A compression length adjusting mechanism capable of deforming the elastic body into a predetermined compression length at which the pressing force to the moving handrail is optimal;
A man conveyor device comprising: 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 portion that has an abutting portion in contact with an inner peripheral surface of the movable handrail, is attached to the base portion, and is configured such that an attachment angle with respect to the base portion can be changed;
An elastic body that is interposed between the base portion and the tension load portion, and applies a pressing force to the movable handrail through the contact portion by the compression deformation;
A compression length adjusting mechanism capable of deforming the elastic body to a predetermined compression length at which a pressing force is optimal to the moving handrail; and
A man conveyor device comprising:   The elastic body has a cylindrical shape having a hollow inner cylinder portion, and each has a pressing member in contact with both end faces thereof, and the compression length adjusting mechanism is provided on the base portion side, and is arranged in the axial direction of the elastic body. A state in which the elastic member has a length adjustment bolt capable of adjusting the compression length, and the state where the shaft member tips protruding into the inner cylinder part of the holding members provided on both end faces of the elastic body are in contact with each other is the elastic member. The man conveyor apparatus according to claim 1, wherein the man conveyor apparatus is set to be the predetermined compression length of the body.   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 any one of claims 1 to 3, 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. .   5. The man conveyor apparatus according to claim 1, wherein the elastic body is one of a metal coil spring and an elastomer material.   The man conveyor device according to claim 1, wherein the contact portion is configured by a roller.   The said tension load part is comprised so that relative displacement with respect to a base part is possible, and it can be operated to the fixed state which prevents this relative displacement, The structure of any one of Claim 1 thru | or 6 characterized by the above-mentioned. Man conveyor device.   The man conveyor device according to claim 3, further comprising a locking nut provided on the length adjustment bolt of the elastic body. A tension adjusting device having a base portion attached with a tension load portion having a contact portion with an inner peripheral surface of an endless moving handrail in a relatively displaceable state is disposed opposite to the inner peripheral surface of the moving handrail. And abutting the abutting part with the inner peripheral surface of the movable handrail;
An elastic body that is interposed between the base portion and the tension load portion and applies a pressing force to the moving handrail through the contact portion due to the compression deformation thereof is pushed onto the moving handrail by a compression length adjusting mechanism. Compressing and deforming to a predetermined compression length at which the pressure is optimal;
After the elastic body is compressed and deformed to a predetermined length, the tension load portion is integrally fixed to the base portion;
A method for adjusting the tension of a moving handrail of a man conveyor device, comprising:   In the step of compressing and deforming the elastic body to a predetermined compression length by the compression length adjusting mechanism, the pressing member that contacts both end faces of the cylindrical elastic body having a hollow inner cylindrical portion protrudes into the inner cylindrical portion. The method for adjusting the tension of the moving handrail of the man conveyor apparatus according to claim 9, wherein the elastic body is compressed and deformed until the distal ends of the shaft portions to be in contact with each other.