JP2013245084A - Man conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a man conveyor that saves an installation space by installing a lateral swing suppressing mechanism part for a truss below the truss, facilitates construction of an exterior panel for the truss, and suppresses a decrease in design performance.SOLUTION: A lateral swing suppressing mechanism 10 includes: a truss-side frame 11 which is fixed to an under surface of a truss 4 and includes, as a lower surface, a horizontal truss-side slide surface 11a extending along the width direction of the truss 4; a support table 12 fixed to a building intermediate support skeleton 7 opposite to the truss-side frame 11; a pair of cradles 13 which have horizontal skeleton-side slide surfaces 13a, are fixed to the support table 12 so that the truss-side slide surface 11a is placed on the skeleton-side slide surface 13a, and support the truss-side frame 11 slidably; and a pair of hydraulic damper units 16 with springs which are interposed between the truss-side frame 11 and support table 12, and energize the truss-side frame 11 to return it to the width-directional center when the truss-side frame 11 slides and moves along the width direction.

Description

  The present invention relates to a man conveyor that carries passengers and particularly relates to a truss support structure that suppresses rolling of the truss.

  In the conventional man conveyor, a horizontal sliding surface and a vertical sliding surface parallel to the longitudinal direction of the truss are provided between the truss and the support beam, and the vertical load of the man conveyor is supported by the horizontal sliding surface. A lateral load acting on the man conveyor is supported by the vertical sliding surface (for example, see Patent Document 1).

  In other conventional man conveyors, an intermediate portion between both end portions of the truss is suspended by a support fixture fixed to a building structure located higher than the upper entrance, and the lower end portion of the support fixture is Between the truss, an adjustment unit is provided that can adjust the vertical height and horizontal accuracy of the truss (see, for example, Patent Document 2).

Japanese Utility Model Publication No. 52-88890 JP 2001-31354 A

  The conventional man conveyor disclosed in Patent Document 1 is configured to support the lateral load of the truss caused by the roll on the vertical sliding surface, so that there is a risk that the truss may be damaged when a large shake such as an earthquake occurs. There was a problem that there was. Further, since the members constituting the vertical sliding surface are arranged so as to sandwich the truss from both sides in the width direction, it is difficult to construct the exterior panel of the truss and there is a problem that the design property is lowered.

  The conventional man conveyor disclosed in Patent Document 2 has a large truss suspension structure, which requires a large installation space, makes it difficult to install the exterior panel of the truss, and reduces the design. there were.

  The present invention has been made to solve such a problem, and a truss roll restraining mechanism is installed below the truss to prevent the truss from being damaged and to reduce the installation space. An object of the present invention is to obtain a man conveyor that can simplify the construction of the exterior panel of the truss and suppress the deterioration of the design.

  The man conveyor according to the present invention includes a truss and a roll suppressing mechanism portion disposed between an intermediate portion of the truss and the building frame. The roll control mechanism is fixed to the lower surface of the truss, and has a horizontal truss side sliding surface extending in the width direction of the truss, and a truss side frame that faces the truss side frame. A support base fixed to the building housing and a horizontal housing-side sliding surface, and fixed to the support base so that the truss-side sliding surface is placed on the housing-side sliding surface. A slide support that slidably supports the truss-side gantry, and the truss-side gantry is interposed between the truss-side gantry and the support gantry. And an elastic support member that urges the gantry to return to the center in the width direction.

According to the present invention, since the roll suppression mechanism is disposed in the lower part of the truss, the installation space can be saved. In addition, the roll suppression mechanism does not interfere with the construction of the truss exterior panel, the construction of the truss exterior panel is simplified, and the design is improved.
The elastic support member is interposed between the truss side frame and the support frame, and urges the truss side frame to return to the center in the width direction when the truss side frame is slid in the width direction. The stress generated in the truss when a large sway is generated is relieved, and the occurrence of damage to the truss is suppressed.

It is sectional drawing which shows typically the whole structure of the escalator which concerns on Embodiment 1 of this invention. It is II-II arrow sectional drawing of FIG. It is a principal part side view which shows the surroundings of the rolling control mechanism part of the steady state in the escalator which concerns on Embodiment 1 of this invention. It is principal part sectional drawing which shows the rolling control mechanism part periphery of the rolling state in the escalator which concerns on Embodiment 1 of this invention. It is a principal part side view which shows the surroundings of the rolling suppression mechanism part of the rolling state in the escalator which concerns on Embodiment 1 of this invention. It is a figure explaining the connection state of the hydraulic damper unit with a spring in the rolling suppression mechanism part of the escalator which concerns on Embodiment 1 of this invention. It is a principal part front view which shows the periphery of the rolling control mechanism part of the steady state in the escalator which concerns on Embodiment 2 of this invention. It is a principal part side view which shows the periphery of the rolling suppression mechanism part of the steady state in the escalator which concerns on Embodiment 2 of this invention. It is a principal part front view which shows the rolling control mechanism part periphery of the rolling state in the escalator which concerns on Embodiment 2 of this invention.

  Hereinafter, an embodiment applied to an escalator as a preferred embodiment of the man conveyor of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
1 is a sectional view schematically showing the overall structure of an escalator according to Embodiment 1 of the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is according to Embodiment 1 of the present invention. FIG. 4 is a cross-sectional view of the main part showing the periphery of the roll restraining mechanism part in the roll state in the escalator according to Embodiment 1 of the present invention. 5 is a side view of the main part showing the periphery of the roll restraining mechanism portion in the roll state in the escalator according to Embodiment 1 of the present invention, and FIG. 6 is in the roll restraining mechanism portion of the escalator according to Embodiment 1 of the present invention. It is a figure explaining the connection state of a hydraulic damper unit with a spring.

  In FIG. 1, an escalator 1 as a man conveyor is supported by a building upper support beam 2 and a building lower support beam 3 at both ends via support parts (not shown), and the building upper support beam 2 and the building lower A truss 4 installed between the side support beams 3, a step unit (not shown) connected endlessly and arranged to be able to circulate on the truss 4, and a truss so as to sandwich the step unit 4 between a pair of balustrades 5 erected on 4, endless moving handrails 6 attached to the periphery of each balustrade 5, and the lower surface of the truss 4 in the longitudinal center and the intermediate support frame 7 of the building And a roll control mechanism 10 provided.

  As shown in FIGS. 2 and 3, the roll suppression mechanism 10 is fixed to the lower surface in the center in the length direction of the truss 4, and the lower surface is horizontally smoothed from one end to the other end in the width direction of the truss 4. A truss-side frame 11 serving as a truss-side sliding surface 11 a composed of a surface, and a width direction length equivalent to that of the truss-side frame 11, and fixed to the building intermediate support housing 7 so as to face the truss-side frame 11 Each of the support bases 12 and the upper surface is a housing side sliding surface 13a formed of a horizontal smooth surface, and the housing side sliding surface 13a is separated from the truss side sliding surface by a predetermined distance in the width direction of the support base 12. A pair of pedestals 13 as slide support pedestals that are fixed to the support pedestal 12 so as to be in contact with the escalator 1 and receive a vertical load of the escalator 1; A truss-side damper support bracket 14 fixedly installed; Each of a pair of housing-side damper support fittings 15, a truss-side damper support fitting 14 and a pair of housing-side damper support fittings 15 fixed to the support stand 12 at a predetermined distance in the width direction of the support stand 12. A spring-equipped hydraulic damper unit 16 as an elastic support member installed between the truss-side gantry 11 and the truss-side slidable surface 11a is fixed to the truss-side gantry 11 during sliding movement in the width direction. A stopper 17 that abuts and restricts further sliding movement of the truss-side gantry 11 and a buffer rubber 18 disposed at a contact portion of the stopper 17 with the cradle 13 are provided.

  As shown in FIGS. 5 and 6, the spring-equipped hydraulic damper unit 16 includes bearing portions 20 at both ends. The bearing portion 20 has a pin insertion hole 21 in which the hole diameter gradually decreases from one end in the hole direction toward the center, becomes minimum at the center in the hole direction, and then gradually increases toward the other end. The spring-equipped hydraulic damper unit 16 has a connecting pin 19 attached to the truss-side damper support fitting 14 and the housing-side damper support fitting 15 as a bearing portion with the axial direction as a horizontal direction orthogonal to the width direction of the truss 4. The two ends are connected to the truss-side damper support fitting 14 and the housing-side damper support fitting 15 through the 20 pin insertion holes 21. Note that the pair of spring-equipped hydraulic damper units 16 whose both ends are connected to the truss-side damper support bracket 14 and the housing-side damper support bracket 15 in this way are disposed on the same vertical plane including the width direction of the truss 4. .

  The roll suppression mechanism 10 configured as described above is configured to be mirror-symmetric with respect to a vertical plane passing through the center in the width direction of the support base 12 in a steady state where there is no roll. The truss-side gantry 11 fixed to the truss 4 is slidably supported on the housing-side sliding surface 13a of the pair of cradles 13. The support base 12 is disposed at the lower part of the truss-side gantry 11 so as not to extend outward in the width direction from the truss 4 when viewed from above. Further, as shown in FIG. 4, the pair of cradles 13 is configured such that the truss side gantry 11 slides on the housing side sliding surface 13 a of the cradle 13, and the stopper 17 contacts the one cradle 13. When this is done, the truss-side gantry 11 is fixed to the support base 12 so as to be supported by the housing-side sliding surfaces 13a of the pair of receiving bases 13.

  Here, when an earthquake or the like occurs and the escalator 1 rolls, the truss 4 is interlocked with the roll of the truss 4 so that the truss-side pedestal 11 is connected to the housing side of the cradle 13 as shown in FIGS. The sliding surface 13a slides and moves to one side in the width direction of the truss 4. Due to the sliding movement of the truss-side gantry 11, the one-side spring-equipped hydraulic damper unit 16 contracts, and the other spring-equipped hydraulic damper unit 16 extends. The contracted hydraulic damper unit 16 with a spring on one side generates a biasing force that presses the truss-side frame 11 to the other side in the width direction via the truss-side damper support bracket 14, and the expanded other-side spring-equipped hydraulic damper unit 16 has a spring. Generates an urging force that pulls the truss-side gantry 11 to the other side in the width direction via the truss-side damper support bracket 14, and acts to suppress the roll of the truss 4.

  Then, as shown in FIG. 4, when the truss side gantry 11 slides and moves on one side in the width direction of the truss 4 on the housing side sliding surface 13 a of the cradle 13, and the stopper 17 comes into contact with the cradle 13. Further movement of the truss side mount 11 to one side in the width direction is prevented.

  The pin insertion hole 21 formed in the bearing portion 20 of the spring-loaded hydraulic damper unit 16 has a hole diameter that gradually decreases from one end in the hole direction toward the center, becomes the minimum in the center in the hole direction, and then toward the other end. It is formed in a hole shape that gradually increases. Therefore, even if the truss-side gantry 11 moves in the width direction while moving in the length direction of the truss 4, the bearing portion 20 does not bite the connection pin 19 as shown in FIG. The truss side mount 11 smoothly slides and moves.

According to the first embodiment, since the roll suppression mechanism 10 is disposed below the truss 4, the installation space for the roll suppression mechanism 10 can be saved, and the roll suppression mechanism can be saved. The part 10 does not affect the construction of the exterior panel of the truss 4. Therefore, the construction of the exterior panel is simplified, and the deterioration of the design property is suppressed, so that the appearance can be improved.
In addition, since the roll restraining mechanism 10 is disposed so as to be within the lower region of the truss 4 when viewed from above, the installation space can be further reduced and the construction of the exterior panel is easier. It becomes.

  A truss side frame 11 fixed on the lower surface of the truss 4 is slidably supported by a horizontal housing side sliding surface 13a of a pair of cradles 13, and a pair of spring-equipped hydraulic damper units 16 are viewed from both sides in the width direction. The truss side mount 11 is elastically supported so that the movement in the width direction is returned to the center in the width direction. Therefore, the stress generated in the truss 4 due to the rolling at the time of the earthquake is absorbed by the contraction and extension of the pair of spring-equipped hydraulic damper units 16 via the truss side mount 11, and the occurrence of damage to the truss 4 is suppressed.

  The pair of spring-equipped hydraulic damper units 16 are arranged on the same vertical plane including the width direction of the truss 4. Therefore, when the truss 4 rolls, the direction of the urging force of the pair of spring-loaded hydraulic damper units 16 generated so as to return the movement in the width direction of the truss side mount 11 to the center in the width direction is the same direction on the same vertical plane. Become. Thus, when the truss 4 rolls, the urging force of the pair of spring-equipped hydraulic damper units 16 does not act to turn the truss-side gantry 11, and the roll of the truss 4 can be effectively suppressed.

Since the stopper 17 abuts against the cradle 13 and the further movement of the truss side gantry 11 to one side in the width direction is prevented, the truss side gantry 11 from the cradle 13 when the earthquake occurs Dropout is prevented in advance.
Since the buffer rubber 18 is disposed at the contact portion of the stopper 17 with the cradle 13, the impact is mitigated when the stopper 17 abuts on the cradle 13, and damage to the cradle 13 and the stopper 17 occurs. It is suppressed.

  The pin insertion hole 21 formed in the bearing portion 20 of the spring-loaded hydraulic damper unit 16 has a hole diameter that gradually decreases from one end in the hole direction toward the center, becomes the minimum in the center in the hole direction, and then toward the other end. It is formed in a hole shape that gradually increases. Therefore, when the earthquake occurs, the bearing portion 20 is engaged with the connecting pin 19, and the connecting pin 19 or the bearing portion 20 is prevented from being damaged.

  In the first embodiment, the pair of pedestals also serve as a locking portion with which the stopper is engaged. However, even if a dedicated locking portion is fixed to the support base so as to be engageable with the stopper. Good.

Embodiment 2. FIG.
FIG. 7 is a front view of a principal part showing the periphery of a steady-state roll suppression mechanism in an escalator according to Embodiment 2 of the present invention, and FIG. 8 is a steady-state roll suppression in the escalator according to Embodiment 2 of the present invention. The principal part side view which shows the mechanism part periphery, FIG. 9: is a principal part front view which shows the rolling control mechanism part periphery of the rolling state in the escalator which concerns on Embodiment 2 of this invention.

7 to 9, the pair of guide frames 22 are spaced apart from the housing side sliding surface 13a by a predetermined distance on both sides of the truss 4 in the longitudinal direction of the housing side sliding surface 13a of the cradle 13. It is fixed to the truss side sliding surface 11a of the truss side mount 11 so as to extend in the direction.
Other configurations are the same as those in the first embodiment.

In the roll restraining mechanism portion 10A configured in this way, the pair of guide frames 22 secures a predetermined gap between the pair of guide frames 22 and the housing-side sliding surface 13a in the length direction of the truss 4, thereby sliding the housing side. It arrange | positions so that the surface 13a may be pinched | interposed.
Therefore, even when the truss 4 is greatly shaken in the length direction when the earthquake occurs, the guide frame 22 comes into contact with the cradle 13 and further movement of the truss side gantry 11 is prevented. This prevents the truss 4 from being detached from the support portions of the building upper support beam 2 and the building lower support beam 3 when an earthquake occurs.

In addition, although each said embodiment demonstrated as what applies to an escalator, even if it applies this invention to man conveyors other than an escalator, for example, a moving walk, the same effect is acquired.
Moreover, in each said embodiment, although the rolling suppression mechanism part shall be installed in one place of the longitudinal direction center part of a truss, the installation position of a rolling suppression mechanism part is the longitudinal direction center of a truss It is not limited to a part, What is necessary is just between the both ends of the truss supported by the building support beam, ie, the intermediate part of a truss. Further, a plurality of roll suppression mechanism portions may be installed at predetermined intervals in the length direction in the intermediate portion of the truss.
In each of the above embodiments, the slide support base is divided into two receiving bases that are fixed to the support base and separated in the width direction. It may be composed of one cradle having a predetermined length.

  DESCRIPTION OF SYMBOLS 1 Escalator (man conveyor), 4 truss, 7 building intermediate support frame, 10, 10A rolling suppression mechanism part, 11 truss side mount, 11a truss side sliding surface, 12 support stand, 13a housing side sliding surface, 13 receptacle Base (slide support base, locking portion), 14 truss side damper support bracket, 15 housing side damper support bracket, 16 hydraulic damper unit (elastic support member), 17 stopper, 18 buffer rubber, 19 coupling pin, 20 bearing portion, 21 pin insertion hole, 22 guide frame.

Claims (7)

In a man conveyor provided with a truss, and a roll suppression mechanism disposed between an intermediate portion of the truss and the building frame,
The roll suppression mechanism is
A truss side pedestal fixed on the lower surface of the truss and having a horizontal truss side sliding surface extending in the width direction of the truss as a lower surface;
A support stand fixed to the building frame so as to face the truss side mount;
It has a horizontal housing side sliding surface, is fixed to the support base so that the truss side sliding surface is placed on the housing side sliding surface, and slidably supports the truss side mounting base. A slide support;
An elastic support member interposed between the truss side mount and the support base and biasing the truss side mount to return to the center in the width direction when the truss side mount slides in the width direction; A man conveyor characterized by comprising.   Each of the elastic support members is disposed on the same vertical plane including the width direction, with one end connected to the center in the width direction of the lower surface of the truss side frame and the other end connected to the outside in the width direction of the support table. 2. The man conveyor according to claim 1, wherein the man conveyor is constituted by a pair of spring-equipped hydraulic damper units. The spring-equipped hydraulic damper unit includes bearing portions having pin insertion holes at both ends, and through the pin insertion holes, a connecting pin perpendicular to the vertical surface attached to the truss side mount and the support base is inserted. , Connected to the truss side mount and the support base,
The pin insertion hole is characterized in that the hole diameter is formed in a hole shape that gradually decreases from one end in the hole direction toward the center, becomes minimum at the center in the hole direction, and then gradually increases toward the other end. The man conveyor according to claim 2. The roll suppression mechanism is
A pair of locking portions fixedly spaced apart from each other in the width direction on the support base;
A stopper projecting on the lower surface of the truss-side pedestal, and engaging with the locking portion during sliding movement in the width direction of the truss-side pedestal to prevent sliding movement in the width direction of the truss-side pedestal; ,
The man conveyor according to any one of claims 1 to 3, further comprising:   5. The man conveyor according to claim 4, wherein a buffer rubber is disposed at an engaging portion of the stopper with the locking portion. Each of the rolling suppression mechanism sections extends in the width direction on both sides of the truss in the longitudinal direction of the housing side sliding surface of the slide support base so as to sandwich the housing side sliding surface. A guide frame projecting from the lower surface of the truss-side frame;
During the sliding movement of the truss side gantry in the longitudinal direction of the truss, the guide frame engages with the slide support base so that the sliding movement of the truss side gantry in the longitudinal direction of the truss is prevented. The man conveyor according to any one of claims 1 to 5, wherein the man conveyor is configured as described above.   The man conveyor according to any one of claims 1 to 6, wherein the roll suppressing mechanism portion is disposed so as to be accommodated in a lower portion of the truss as viewed from above.

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