阅读说明：本技术 乘客输送机和乘客输送机的导靴 (Passenger conveyor and guide shoe of passenger conveyor ) 是由 奥田龙 白井健太 近藤孝广 森博辉 宗和伸行 于 2019-07-11 设计创作，主要内容包括：乘客输送机的导靴具有：基部,其在裙板上滑动,裙板沿着被设置成能够移动的多个梯级的移动方向设置；以及配重,其包含比重比基部的比重大的材料,且设置于基部。(A guide shoe for a passenger conveyor includes: a base that slides on a skirt plate, the skirt plate being provided along a moving direction of a plurality of steps that are provided so as to be movable; and a weight which is made of a material having a specific gravity greater than that of the base and is provided on the base.)

1. A guide shoe for a passenger conveyor, comprising:

a base that slides on a skirt plate provided along a moving direction of a plurality of steps provided to be movable; and

a counterweight disposed at the base.

2. The guide shoe of a passenger conveyor according to claim 1,

the weight is provided on a plane perpendicular to a sliding surface on which the skirt and the base slide and extending in a sliding direction in which the skirt and the base slide, at a position where an inertia moment around a combined center of gravity of the base and the weight is larger than an inertia moment around a center of gravity of the base.

3. The guide shoe of a passenger conveyor according to claim 1 or 2,

the weight is provided at a position where a distance from a contact point of the apron board with the base to a combined center of gravity of the base and the weight is larger than a distance from a contact point of the apron board with the base to a center of gravity of the base.

4. The guide shoe of a passenger conveyor according to any one of claims 1 to 3,

the weight is provided on a back surface of the base portion on a side opposite to a sliding surface sliding on the apron board.

5. The guide shoe of a passenger conveyor according to any one of claims 1 to 3,

the weight is provided on a side surface of the base portion perpendicular to a sliding surface that slides on the apron board.

6. The guide shoe of a passenger conveyor according to any one of claims 1 to 3,

a gap is provided between the counterweight and a seat surface portion provided to the step and holding the base portion.

7. A passenger conveyor is provided with:

the guide shoe of the passenger conveyor of any one of claims 1 to 6;

the plurality of steps configured to be movable; and

the skirt panel disposed along a moving direction of the plurality of steps,

the guide shoe is mounted to the step.

Technical Field

The present invention relates to a passenger conveyor such as an escalator or a moving sidewalk, and a guide shoe for a passenger conveyor.

Background

A conventional passenger conveyor includes a balustrade provided in a building structure and entrance/exit floors provided at both ends in a longitudinal direction of the balustrade. The plurality of steps connected in a ring shape are provided to circulate between the doorway floors. The skirt panels are attached to the balustrade on both sides in the width direction of the steps so as to extend along the movement direction of the steps. The guide shoes are installed on both sides of the step in the width direction. Thus, when the step moves, the guide shoe comes into contact with the skirt board, thereby restricting the step from moving in the width direction (see, for example, patent document 1).

In such a passenger conveyor, the shoe moves while contacting the apron, i.e., slides on the apron, whereby the shoe causes frictional vibration. This generates sliding noise from the peripheral portion of the guide shoe.

In the conventional passenger conveyor described in patent document 1, the guide shoe is made of a low-friction material, thereby suppressing generation of sliding noise. Further, non-patent document 1 describes a mathematical description about the generation of vibration.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-190043

Non-patent document

Non-patent document 1: bitengxiao Guang 'elucidation and prevention strategy for self-excited vibration based on novel complex model analysis' (pp 10-12), 18 th autumn technical communication forum of Guanxi Branch of Japan society of mechanics (2017, 10, 21 days)

Disclosure of Invention

Problems to be solved by the invention

In a conventional passenger conveyor, guide shoes are made of a low-friction material. Therefore, the generation of the sliding noise can be suppressed by the effect of the low friction material during a certain period from the new installation of the guide shoe. However, the friction coefficient of the sliding surface of the guide shoe increases with time, and therefore, the generation of the sliding noise cannot be continuously suppressed during the long-term operation of the passenger conveyor.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a passenger conveyor and a guide shoe for a passenger conveyor, which can suppress the generation of sliding noise for a long period of time even if the friction coefficient of the sliding surface of the guide shoe increases with time.

Means for solving the problems

The guide shoe of the passenger conveyor of the invention comprises: a base that slides on a skirt plate provided along a moving direction of a plurality of steps provided to be movable; and a weight that includes a material having a specific gravity greater than that of the base portion and is provided on the base portion.

Effects of the invention

In the present invention, a weight including a material having a higher specific gravity than that of a base portion is provided at the base portion of a guide shoe of a passenger conveyor so as to increase the mass of a mass point. Therefore, even if the friction coefficient of the base portion increases with the passage of time, the frictional vibration of the guide shoe can be suppressed, thereby achieving suppression of the sliding noise during the long-term operation of the passenger conveyor.

Drawings

Fig. 1 is a perspective view showing a key part of a passenger conveyor of embodiment 1 of the present invention.

Fig. 2 is a perspective view showing a step of a passenger conveyor according to embodiment 1 of the present invention.

Fig. 3 is an enlarged perspective view showing a key part of a step of a passenger conveyor according to embodiment 1 of the present invention.

Fig. 4 is a perspective view showing a guide shoe in a step of a passenger conveyor according to embodiment 1 of the present invention.

Fig. 5 is a perspective view showing guide shoes in steps of a conventional passenger conveyor.

Fig. 6 is an analysis model diagram in which a frictional vibration phenomenon of a guide shoe of a passenger conveyor is simplified.

Fig. 7 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 2 of the present invention.

Fig. 8 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 2 of the present invention.

Fig. 9 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 3 of the present invention.

Fig. 10 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 3 of the present invention.

Fig. 11 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 4 of the present invention.

Fig. 12 is a sectional view taken in the direction of XII-XII in fig. 11.

Fig. 13 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 5 of the present invention.

FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. 13.

Fig. 15 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 6 of the present invention.

Fig. 16 is a sectional view in elevation of XVI-XVI in fig. 15.

Fig. 17 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 7 of the present invention.

Fig. 18 is a sectional view in elevation of XVIII-XVIII in fig. 17.

Fig. 19 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 8 of the present invention.

Fig. 20 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 8 of the present invention.

Fig. 21 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 9 of the present invention.

Fig. 22 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 9 of the present invention.

Fig. 23 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 10 of the present invention.

Fig. 24 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 10 of the present invention.

Fig. 25 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 11 of the present invention.

Fig. 26 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 11 of the present invention.

Fig. 27 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 12 of the present invention.

Fig. 28 is a sectional view taken along line XXVIII-XXVIII in fig. 27.

Fig. 29 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 13 of the present invention.

Fig. 30 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 13 of the present invention.

Fig. 31 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 14 of the present invention.

Fig. 32 is a side view showing a guide shoe in a step of a passenger conveyor of embodiment 14 of the present invention.

Fig. 33 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 15 of the present invention.

Fig. 34 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 15 of the present invention.

Fig. 35 is a side view showing a guide shoe in a step of a passenger conveyor of embodiment 16 of the present invention.

FIG. 36 is a sectional view looking down XXXVI-XXXVI of FIG. 35.

Fig. 37 is a side view showing a guide shoe in a step of a passenger conveyor according to embodiment 17 of the present invention.

FIG. 38 is a cross-sectional view from XXXVIII-XXXVIII of FIG. 37.

Fig. 39 is a side view showing a guide shoe in a step of a passenger conveyor of embodiment 18 of the present invention.

FIG. 40 is a cross-sectional view taken from the line XXXX-XXXX of FIG. 39.

Detailed Description

Embodiment mode 1

Fig. 1 is a perspective view showing a key part of a passenger conveyor of embodiment 1 of the present invention.

In fig. 1, the passenger conveyor includes: an entrance floor 1 provided on each floor of a building; a plurality of steps 10 connected in a ring shape and provided to be able to move cyclically between the entrance floor 1 on the upper floor and the entrance floor 1 on the lower floor; balustrades 2 that are separated from each other in the width direction of the steps 10 and are provided on both sides of the steps 10 in the width direction along the moving direction of the steps 10 in parallel; a handrail 3 provided along the outer periphery of each balustrade 2 and moving in synchronization with the steps 10; and skirt boards 4 provided at lower portions of the balustrades 2.

Next, the structure of the step 10 will be described with reference to fig. 2 to 4. Fig. 2 is a perspective view showing a step of a passenger conveyor according to embodiment 1 of the present invention, fig. 3 is an enlarged perspective view showing a key part of the step of the passenger conveyor according to embodiment 1 of the present invention, and fig. 4 is a perspective view showing a guide shoe in the step of the passenger conveyor according to embodiment 1 of the present invention.

As shown in fig. 2, the step 10 includes: a step 11 on which a passenger rides; a vertical plate 12 which is a kick plate; and a triangular bracket 13 that is disposed on the side of the step plate 11 opposite the stepping surface, and that serves as a framework that supports both ends of the step plate and the riser 12 in the width direction, while being separated in the width direction of the step plate 11. A C-shaped fitting portion 14 is provided at an end portion of each of the triangular brackets 13 on the opposite side to the vertical plate 12. The seat surface portion 15 for attaching the guide shoe 20A is provided adjacent to the fitting portion 14 on the opposite side of the fitting portion 14 from the riser 12, in each of the triangular brackets 13. The rear wheel 16 is provided at the end of each of the triangular brackets 13 on the riser 12 side. Although not shown, the step front wheel axle is attached to the fitting portion 14 of the triangular bracket 13. The front wheels are mounted at both ends of the front wheel shaft of the step. The front wheels mounted on the front wheel shafts of the steps are connected via an annular step chain.

The stairs 10 configured as above are not shown, but the front wheels are connected to an annular stair chain, and the stairs 10 are annularly provided between the entrance floor 1 of the upper floor and the entrance floor 1 of the lower floor. Then, the step chain is driven, and the steps 10 circulate between the doorway floor 1 of the upper floor and the doorway floor 1 of the lower floor.

Here, as shown in fig. 3, the seating surface portion 15 is formed as a cylindrical body, and is provided in each of the triangular brackets 13 with the axial direction as the width direction of the step 11. In some passenger conveyors, a rectangular parallelepiped member may be used as a member for attaching the guide shoe 20A. That is, the seat surface portion 15 is a structure in which the guide shoe 20A is attached to the passenger conveyor or the base portion 21 of the guide shoe 20A described later is held. The seat surface portion 15 is configured such that the amount of projection from the step 10 is within a predetermined range. The axial direction of the seating surface portion 15 is perpendicular to a sliding surface of the apron 4 on which a base portion 21 of the shoe 20A described later slides. The seat surface, which is an axially outer end surface of the seat surface portion 15, is a flat surface perpendicular to the axial direction of the seat surface portion 15. A pair of guide grooves 15a are formed on the inner wall of the peripheral wall of the seat surface portion 15 so as to face each other with the axial center of the seat surface portion 15 interposed therebetween and extend parallel to the axial center. A pair of insertion holes 15b are formed in the peripheral wall portion of the seat surface portion 15 so as to face each other with the axis of the seat surface portion 15 interposed therebetween and connect the pair of guide grooves 15a to the outside of the seat surface portion 15. The seat surface of the seat surface portion 15 has a pair of fitting grooves 15c formed so as to face each other with the axis of the seat surface portion 15 interposed therebetween. The direction in which the pair of guide grooves 15a face each other is perpendicular to the direction in which the pair of fitting grooves 15c face each other.

As shown in fig. 4, the guide shoe 20A includes: a base 21 that slides on a sliding surface of the skirt 4 when the step 10 moves; a weight 22 that adds mass to the base 21; a pair of leg portions 23 for attaching the base portion 21 to the seat portion 15; a claw portion 24 provided at the tip of each leg portion 23; and a protrusion 25 that positions the base 21.

The base 21 is a low friction material, and is made of a material having appropriate elasticity, for example, polyacetal resin, polytetrafluoroethylene resin, polyamide resin, polyethylene resin, polyphenylene sulfide resin, polyolefin resin, phenol resin, polyether ether ketone resin, or the like, and is formed into a rectangular parallelepiped flat plate. The weight 22 is attached to the back surface, which is the surface opposite to the sliding surface of the base 21 sliding on the sliding surface of the apron 4, in a state of being in contact with the base 21 by bonding or welding. The weights 22 are provided on both short sides of the rectangular back surface of the base 21 so as to be separated in the longitudinal direction of the long side of the back surface. The weight 22 is formed in a rectangular parallelepiped shape using a material having a specific gravity higher than that of the base 21, for example, a metal such as iron, aluminum, copper, lead, or tungsten, a stone material, or glass. The pair of legs 23 is provided to extend from the back surface of the base 21 in a direction perpendicular to the sliding surface of the base 21. The claw portion 24 is provided so as to protrude outward in the direction in which the leg portions 23 face each other from the protruding ends of the pair of leg portions 23. The protrusion 25 is shaped to be fittable into the fitting groove 15c, and is provided at a central position between the pair of leg portions 23 on the back surface of the base 21. The protrusion 25 extends in a direction perpendicular to a direction in which the pair of legs 23 oppose each other.

To attach the guide shoe 20A configured as described above to the step 10, first, the pair of leg portions 23 are elastically deformed to narrow the gap between the claw portions 24, and the claw portions 24 are inserted into the pair of guide grooves 15 a. Next, the pair of leg portions 23 is inserted into the seat surface portion 15. Thereby, the claw portion 24 moves forward in the pair of guide grooves 15a, and when it reaches the position of the insertion hole 15b, the leg portion 23 returns to its original position, and the claw portion 24 is inserted into the insertion hole 15 b. At this time, the protrusion 25 is inserted into the fitting groove 15 c. Thus, the guide shoe 20A is attached to the step 10 such that the base 21 faces outward in the width direction of the step 11. The claw portion 24 is inserted into the insertion hole 15b, thereby preventing the guide shoe 20A from coming off the seat surface portion 15. Further, the projection 25 is fitted into the fitting groove 15c, so that the rotation of the guide shoe 20A about the axial center of the seat surface portion 15 is prevented, and the positioning is completed. The counterweight 22 contacts the base 21 and is separated from the skirt panel 4 and the components of the step 10 such as the tread 11, the riser 12, the triangular bracket 13, and the seat surface 15.

Fig. 5 is a perspective view showing guide shoes in steps of a conventional passenger conveyor. As shown in fig. 5, the conventional guide shoe 100 is configured in the same manner as the guide shoe 20A of the present application, except that the counterweight 22 is omitted.

Next, an outline of a phenomenon in which noise is generated along with the sliding movement of the guide shoe and a mechanical effect of the guide shoe structure will be described.

First, as a general sliding phenomenon, when the friction coefficient of the sliding surface is equal to or greater than a certain value between 2 sliding members, the vibration amplitude of the members tends to increase significantly. However, this phenomenon is not a phenomenon that is determined only by the magnitude of the friction coefficient value, and there are other parameters that affect it. For example, vibration is suppressed by increasing the mass of the particle portion of the frictional vibration system.

In the present invention, the above-described characteristics in the sliding phenomenon are applied to the structure of the guide shoe of the passenger conveyor.

The guide shoe 20A receives a frictional force from the skirt panel 4 with the leg portion 23 attached to the step 10 as a fixed end. The particle portion in the frictional vibration system is the base 21 of the leading end of the shoe 20A. In the conventional guide shoe 100 shown in fig. 5, the weight 22 is not provided, and therefore the mass of the base 21 is not increased. Further, the friction coefficient of the sliding surface of the base 21 sliding with the apron 4 increases with time. Therefore, when the conventional guide shoe 100 is used, the generation of the sliding noise cannot be continuously suppressed during the long-term operation of the passenger conveyor.

Therefore, for vibration suppression, it is effective to increase the mass of the base 21. By providing the base 21 with the weight 22 containing a material having a higher specific gravity than the material of the base, vibration of the base 21 can be suppressed. However, if the weight 22 provided on the base 21 is in contact with a component of the step 10 such as the seat surface portion 15 of the step 10, which is the ground of the frictional vibration system, and is supported by the component of the step 10, a desired mass may not be added to the mass portion. In fact, experiments were conducted in a state where the weight was brought into contact with the component members of the step, and as a result, the vibration was not reduced in some cases. In embodiment 1, the counterweight 22 may be attached to the base 21 in a state of being in contact with only the base 21 so as not to be in contact with the seat surface portion 15 of the step 10 and the constituent members of the step 10 such as other peripheral members. That is, the counterweight 22 is disposed with a gap between the components of the step 10. The counterweight 22 may be disposed so as not to contact or be separated from the components of the step 10 including the seat surface portion 15 and the peripheral components thereof. The shoe 20A may be attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. Thereby, the weight 22 adds mass to the base 21. Further, the weight 22 is made of a material having a specific gravity greater than that of the base 21. According to embodiment 1, the mass of the base 21 can be effectively increased while suppressing an increase in the volume of the guide shoe 20A. As a result, even if the friction coefficient of the sliding surface of the base 21 increases with time, the frictional vibration of the guide shoe 20A can be suppressed, and the sliding noise during the long-term operation of the passenger conveyor can be suppressed.

Further, there are various phenomena as a phenomenon in which the vibration amplitude is increased due to the influence of the frictional force. The inventors have conducted experimental investigations on the frictional vibration of the guide shoe and found that, in the case of the guide shoe, there is a phenomenon of vibration instability caused by the mass matrix, the rigidity matrix, and the damping matrix of the guide shoe being asymmetric matrices.

Fig. 6 is an analysis model in which the frictional vibration phenomenon of the guide shoe is simplified. The guide shoe 100 is suspended via 2 suspension springs in a horizontal upper support portion corresponding to the seat surface portion 15. The 2 suspension springs are connected to the upper support part at positions separated from each other in the horizontal direction. The guide shoe 100 is a rigid body having a mass M. The lower support portion corresponding to the skirt 4 is located below the shoe 100. A contact spring having a spring constant kc in contact with the guide shoe 100 is provided in the lower support portion. The guide shoe 100 is pressed against the lower support portion via a contact spring. The lower support moves in the horizontal direction at a certain speed with respect to the guide shoe 100. At the contact point of the contact spring with respect to the guide shoe 100, a kinetic frictional force, which is a coulomb frictional force, acts on the guide shoe 100. As the movement of the guide shoe 100, only the translational movement in the vertical direction and the rotational movement around the center of gravity are possible. The rotational movement of the guide shoe 100 about the center of gravity is a rotational movement on a plane perpendicular to the lower support and extending along the direction of movement of the lower support. Assuming that the moment of inertia about the center of gravity of the guide shoe 100 is J, the vertical downward displacement of the guide shoe 100 based on the non-vibration-balanced state is x, and the angular displacement about the center of gravity is θ, the equation of motion of the system is expressed by the following equation (1).

[ mathematical formula 1]

Where K/2 is the spring constant of each suspension spring. kc is the spring constant of the contact spring. L is a dimension in the horizontal direction between the center of gravity of the guide shoe 100 and one suspension spring. μ is the coefficient of the dynamic friction system of the contact spring relative to the shoe 100. In fig. 6, the sign of "a" is defined as positive on the left side of the center of gravity of the guide shoe 100. b is a dimension of the contact spring in the vertical direction between the contact point of the contact spring with respect to the guide shoe 100 and the center of gravity of the guide shoe 100. Here, when several dimensionless parameters are introduced, the equation of motion of the system is expressed by the following equation (2).

[ mathematical formula 2]

The mass matrix and the stiffness matrix create asymmetry. At this time, when the values of α and β do not satisfy the condition of the following expression (3), it is mathematically derived that the vibration amplitude of the shoe 100 is increased as shown in non-patent document 1.

[ mathematical formula 3]

In the conventional guide shoe 100 shown in fig. 5, α and β have values deviating from the stabilization condition, and therefore, a significant increase in vibration amplitude occurs. Therefore, as one of the methods for stabilizing the vibration, it is described that the value of α is increased so that the following expression (4) is satisfied, compared with the structure of the conventional guide shoe 100.

[ mathematical formula 4]

Similarly, with respect to the structure of the conventional guide shoe 100, it is assumed that the value of β is reduced in a range of less than 0 so that the following expression (5) is satisfied.

[ math figure 5]

In order to increase the value of α relative to the conventional guide shoe 100, it is necessary to increase the value of the turning radius J/M of the guide shoe 100. That is, it is necessary to increase the moment of inertia J about the center of gravity of the shoe 100 on a plane perpendicular to the sliding surface between the apron and the base 21 of the shoe 100 and extending in the sliding direction in which the apron and the base 21 slide. The center of gravity referred to herein is the center of gravity of the base 21.

In order to reduce the value of β with respect to the conventional shoe 100, it is necessary to increase the distance b from the contact point where the apron and the base 21 contact to the center of gravity of the base 21. This stabilizes the sliding state of the guide shoe 100 with respect to the apron 4, and suppresses the generation of sliding noise during long-term operation of the passenger conveyor.

In the present embodiment, the shoe 20A has the weight 22 at a position where the moment of inertia about the combined center of gravity of the base 21 and the weight 22 is larger than the moment of inertia about the center of gravity of the base 21 on a plane perpendicular to the sliding surface between the apron 4 and the base 21 and extending in the sliding direction between the apron 4 and the base 21. That is, the guide shoe 20A includes: a base 21 that slides on a skirt panel 4, the skirt panel 4 being provided along a moving direction of a plurality of steps 10 provided to be movable; and a counterweight 22 provided to the base 21, the counterweight increasing a radius of rotation for the pitch motion in the moving direction of the base 21. Therefore, the sliding state of the shoe 20A with respect to the apron 4 can be stabilized, and the generation of sliding noise of the shoe 20A with respect to the apron 4 can be further suppressed. In addition, the pitch motion refers to a rotational motion of the base 21 on a plane perpendicular to the sliding surface of the apron 4 and the base 21 and extending in the sliding direction of the apron 4 and the base 21, and is a rotational motion centered on the center of gravity.

The combined center of gravity means a center of gravity when the base is attached with the weight and the base and the weight are regarded as a single body.

Here, in embodiment 1 described above, the counterweight 22 may be provided on the base 21 in a state of being in contact with only the base 21. The guide shoe 20A may be attached to the seat surface portion 15 so that the counterweight 22 has a gap with respect to the components of the step 10. However, the counterweight 22 may be in contact with not only the base 21 but also a component of the guide shoe 20A other than the base 21, for example, the leg 23, as long as it has a gap with respect to the component of the step 10. In other embodiments, the counterweight may be in contact with not only the base but also a component of the guide shoe other than the base, for example, the leg portion, as long as the counterweight has a gap with respect to the component of the step.

In embodiment 1 described above, the base 21 is provided with the weight 22 made of a material having a higher specific gravity than that of the material of the base, at a position where the moment of inertia about the combined center of gravity of the base 21 and the weight 22 is larger than the moment of inertia about the center of gravity of the base 21. This can more reliably suppress vibration of the base 21.

In each of embodiments 1 to 18, a structure in which the mass of the guide shoe increases is shown. In each of embodiments 1 to 13, a configuration is shown in which the value of α is increased, that is, in a plane perpendicular to the sliding surface between the apron and the base and extending in the sliding direction between the apron and the base, the moment of inertia about the combined center of gravity of the base and the counterweight is larger in the case where the counterweight is provided at the base than the moment of inertia about the center of gravity of the base. In each of embodiments 14 to 18, a configuration is disclosed in which the value of β is reduced, that is, the distance b from the contact point of the apron with the base to the combined center of gravity of the base and the counterweight is greater when the base includes the counterweight than when the distance b from the contact point of the apron with the base to the center of gravity of the base.

Embodiment mode 2

Fig. 7 is a plan view showing the guide shoe in the step of the passenger conveyor according to embodiment 2 of the present invention, and fig. 8 is a side view showing the guide shoe in the step of the passenger conveyor according to embodiment 2 of the present invention.

In fig. 7 and 8, 1 weight 22 is fixed to the back surface of the base 21 in a state of being in contact with the base 21 by bonding, welding, or the like.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20B according to embodiment 2, the weight 22 made of a material having a higher specific gravity than that of the base 21 is also provided on the back surface of the base 21 in a state of being in contact with the base 21. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22 is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22. The shoe 20B may be attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. In this case, the counterweight 22 may be disposed so as not to contact or be separated from the seat surface portion 15 or the constituent member of the step 10.

Therefore, also in embodiment 2, the same effects as those in embodiment 1 can be obtained.

Embodiment 3

Fig. 9 is a plan view showing the guide shoe in the passenger conveyor step according to embodiment 3 of the present invention, and fig. 10 is a side view showing the guide shoe in the passenger conveyor step according to embodiment 3 of the present invention.

In fig. 9 and 10, the weights 22 are fixed to the 4 corners of the rectangular back surface of the base 21 in a state of being in contact with the base 21 by bonding, welding, or the like.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20C according to embodiment 3, the weight 22 made of a material having a higher specific gravity than that of the base 21 is also provided on the back surface of the base 21 so as to be in contact with the base 21. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22 is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22. The shoe 20C is attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. In this case, the counterweight 22 may be disposed so as not to contact or be separated from the seat surface portion 15 or the constituent member of the step 10.

Therefore, also in embodiment 3, the same effects as those in embodiment 1 can be obtained.

In embodiments 1 to 3, the number of the weights 22 provided on the back surface of the base 21 is 1, 2, or 4, but the number of the weights 22 provided on the back surface of the base 21 may be 1 or more, and the number is not limited.

Embodiment 4

Fig. 11 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 4 of the present invention, and fig. 12 is a section view taken in the direction of XII-XII in fig. 11.

In fig. 11 and 12, the weight 22 is fixed to the back surface of the base 21 by a screw 26 in a state of being in contact with the base 21.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20D according to embodiment 4, the weight 22 made of a material having a higher specific gravity than that of the base 21 is also provided on the back surface of the base 21 so as to be in contact with the base 21. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22 is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22. The shoe 20D is attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. In this case, the counterweight 22 may be disposed so as not to contact or be separated from the seat surface portion 15 or the constituent member of the step 10.

Therefore, also in embodiment 4, the same effects as those in embodiment 1 can be obtained.

Embodiment 5

Fig. 13 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 5 of the present invention, and fig. 14 is an XIV-XIV cross-sectional view of fig. 13.

In fig. 13 and 14, the base portion 21A is made of a low friction material into a rectangular parallelepiped flat plate similarly to the base portion 21, and the fitting recess 27 is formed in the back surface of the base portion 21A. Similarly to the weight 22, the weight 22A is made of a material having a higher specific gravity than the base 21A into a rectangular parallelepiped, and the fitting protrusion 28 is formed on the bottom surface of the weight 22A. The weight 22A is fixed to the base 21A by fitting the fitting convex portion 28 into the fitting concave portion 27 and bonding it as necessary.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20E according to embodiment 5, the weight 22A made of a material having a higher specific gravity than that of the base portion 21A is also provided on the back surface of the base portion 21A so as to be in contact with the base portion 21A. Further, the counterweight 22A is provided at a position where the moment of inertia about the combined center of gravity of the base 21A and the counterweight 22A is larger than the moment of inertia about the center of gravity of the base 21A because the base 21A is provided with the counterweight 22A. The shoe 20E is attached to the seat surface portion 15 so that the counterweight 22A is separated from the apron 4. At this time, the counterweight 22A may be disposed so as not to contact or be separated from the seat surface portion 15 or the component of the step 10.

Therefore, also in embodiment 5, the same effects as those in embodiment 1 can be obtained.

Embodiment 6

Fig. 15 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 6 of the present invention, and fig. 16 is a cross-sectional view taken along XVI-XVI in fig. 15.

In fig. 15 and 16, the base portion 21B is a rectangular parallelepiped flat plate made of a low friction material similarly to the base portion 21, and the fitting recess 29 is formed in the back surface of the base portion 21B. The weight 22 is fitted into the fitting recess 29 and fixed to the base 21B by adhesion as necessary.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20F according to embodiment 6, the weight 22 made of a material having a higher specific gravity than that of the base portion 21B is also provided on the back surface of the base portion 21B so as to be in contact with the base portion 21B. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21B and the counterweight 22 is larger than the moment of inertia about the center of gravity of the base 21B because the base 21B is provided with the counterweight 22. The shoe 20F is attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. In this case, the counterweight 22 may be disposed so as not to contact or be separated from the seat surface portion 15 or the constituent member of the step 10.

Therefore, also in embodiment 6, the same effects as those in embodiment 1 can be obtained.

In embodiments 1 to 6, the counterweight is fixed to the base by integral molding, adhesion, fusion, screws, fitting of the concave portions and the convex portions, or the like, but the fixing means is not limited to these means, and the counterweight may be fixed to the base by a belt, a wire, or a rope. In the case where the weight is made of a magnetic material, the weight may be fixed to the base portion using a magnet.

Embodiment 7

Fig. 17 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 7 of the present invention, and fig. 18 is a cross-sectional view of XVIII to XVIII in fig. 17.

In fig. 17 and 18, the base portion 21C is a rectangular parallelepiped flat plate made of a low friction material, similarly to the base portion 21. The weight 22 is insert-molded in the base 21C and embedded in the base 21C.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20G according to embodiment 7, the weight 22 made of a material having a specific gravity greater than that of the base 21C is also embedded in the base 21C. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21C and the counterweight 22 is larger than the moment of inertia about the center of gravity of the base 21C because the base 21C is provided with the counterweight 22. The shoe 20G is attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. In this case, the counterweight 22 may be disposed so as not to contact or be separated from the seat surface portion 15 or the constituent member of the step 10.

Therefore, also in embodiment 7, the same effects as those in embodiment 1 can be obtained.

According to embodiment 7, the counterweight 22 is embedded in the base 21C. This can prevent the counterweight 22 from being mounted in a defective state when the guide shoe 20G is manufactured. Further, even if an external force acts on the counterweight 22 during the installation of the guide shoe 20G and during the operation of the passenger conveyor, the counterweight 22G can be prevented from peeling off or falling off from the base 21C.

Embodiment 8

Fig. 19 is a plan view showing the guide shoe in the passenger conveyor step according to embodiment 8 of the present invention, and fig. 20 is a side view showing the guide shoe in the passenger conveyor step according to embodiment 8 of the present invention.

In fig. 19 and 20, the weight 22B is made of a material having a higher specific gravity than the base portion 21 in a ring flat plate shape. The weight 22B is fixed to the back surface of the base 21 by bonding, welding, or the like so as to surround the pair of leg portions 23 and the protrusion portion 25 without contacting the pair of leg portions 23 and the protrusion portion 25.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20H according to embodiment 8, the weight 22B made of a material having a higher specific gravity than that of the base 21 is also provided on the back surface of the base 21 so as to be in contact with the base 21. Further, the counterweight 22B is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22B is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22B. The shoe 20H is attached to the seat surface portion 15 so that the counterweight 22B is separated from the apron 4. At this time, the counterweight 22B may be disposed so as not to contact or be separated from the seat surface portion 15 or the component of the step 10.

Therefore, also in embodiment 8, the same effects as those in embodiment 1 can be obtained.

According to embodiment 8, the weight 22B is formed in an annular flat plate shape. Thus, even if the counterweight 22B falls off from the base 21 during operation of the passenger conveyor, the counterweight can be prevented from falling into the passenger conveyor.

Embodiment 9

Fig. 21 is a plan view showing the guide shoe in the step of the passenger conveyor according to embodiment 9 of the present invention, and fig. 22 is a side view showing the guide shoe in the step of the passenger conveyor according to embodiment 9 of the present invention.

In fig. 21 and 22, the weight 22C is formed by integrally stacking weight plates 22a and 22b, which are formed as rectangular parallelepiped flat plates made of a material having a higher specific gravity than the base 21, by bonding, welding, or the like. The counterweight 22C has the same weight as the counterweight 22. The weight 22C is fixed to the back surface of the base 21 by adhesion or welding in a state of being in contact with the base 21.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20I according to embodiment 9, the weight 22C made of a material having a higher specific gravity than that of the base 21 is also provided on the back surface of the base 21 so as to be in contact with the base 21. Further, the counterweight 22C is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22C is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22C. The shoe 20I is attached to the seat surface portion 15 so that the counterweight 22C is separated from the apron 4. At this time, the weight 22C may be disposed so as not to contact or be separated from the seat surface portion 15 or the component of the step 10.

Therefore, also in embodiment 9, the same effects as those in embodiment 1 can be obtained.

In embodiment 9, the 2 weight plates 22a and 22b are fixed by bonding or welding, but the method of fixing the weight plates 22a and 22b is not limited to bonding or welding. The weight 22I is divided into 2 weight plates 22a and 22b, but the number of divisions is not limited to 2.

Embodiment 10

Fig. 23 is a plan view showing the guide shoe in the step of the passenger conveyor according to embodiment 10 of the present invention, and fig. 24 is a side view showing the guide shoe in the step of the passenger conveyor according to embodiment 10 of the present invention.

In fig. 23 and 24, the weight 22 is fixed to a pair of opposing side surfaces of the base 21 by bonding, welding, or the like. Here, the side surface is a surface perpendicular to the sliding surface of the base 21 of the flat plate formed into a rectangular parallelepiped.

The other structure is configured in the same manner as in embodiment 1.

In the guide shoe 20J according to embodiment 10, the weight 22 made of a material having a higher specific gravity than that of the base 21 is also provided on the pair of side surfaces of the base 21 so as to be in contact with the base 21. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22 is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22. The shoe 20I is attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. That is, the counterweight 22 may be in contact with the base 21 and be separated from the apron 4 and the components of the step 10 such as the tread 11, the riser 12, the triangular bracket 13, and the seat surface 15.

Therefore, also in embodiment 10, the same effects as those in embodiment 1 can be obtained.

Embodiment 11

Fig. 25 is a plan view showing the guide shoe in the step of the passenger conveyor according to embodiment 11 of the present invention, and fig. 26 is a side view showing the guide shoe in the step of the passenger conveyor according to embodiment 11 of the present invention.

In fig. 25 and 26, the weight 22 is fixed to the opposite side surfaces of the base 21 by bonding, welding, or the like.

The other structure is configured in the same manner as in embodiment 10.

In the guide shoe 20K according to embodiment 10, the weight 22 made of a material having a higher specific gravity than that of the base 21 is also provided on the other pair of side surfaces of the base 21 so as to be in contact with the base 21. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22 is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22. The shoe 20K is attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. In this case, the counterweight 22 may be disposed so as not to contact or be separated from the seat surface portion 15 or the constituent member of the step 10.

Therefore, also in embodiment 11, the same effects as those in embodiment 10 can be obtained.

Embodiment 12

Fig. 27 is a plan view showing the guide shoe in the step of the passenger conveyor according to embodiment 12 of the present invention, and fig. 28 is a side view showing the guide shoe in the step of the passenger conveyor according to embodiment 12 of the present invention.

In fig. 27 and 28, the weight 22D is made of a material having a higher specific gravity than that of the base 21 in a rod shape, and is insert-molded into the base 21 to be provided on the base 21.

The other structure is configured in the same manner as in embodiment 10.

In the guide shoe 20L according to embodiment 12, the weight 22D made of a material having a higher specific gravity than that of the base 21 is also provided in the base 21 so as to be in contact with the base 21. Further, the counterweight 22D is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the counterweight 22D is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22D. The shoe 20L is attached to the seat surface portion 15 so that the counterweight 22D is separated from the apron 4. At this time, the counterweight 22D may be disposed so as not to contact or be separated from the seat surface portion 15 or the component of the step 10.

Therefore, also in embodiment 12, the same effects as those in embodiment 10 can be obtained.

Embodiment 13

Fig. 29 is a plan view showing the guide shoe in the passenger conveyor step according to embodiment 13 of the present invention, and fig. 30 is a side view showing the guide shoe in the passenger conveyor step according to embodiment 13 of the present invention.

In fig. 29 and 30, 1 weight 22 is fixed to each of both end sides of the back surface of the base 21 and a pair of side surfaces facing each other by bonding, welding, or the like.

The other structure is configured in the same manner as in embodiment 10.

In the guide shoe 20M according to embodiment 13, the weight 22 made of a material having a higher specific gravity than that of the base 21 is also provided in the base 21 so as to be in contact with the base 21. Further, the counterweight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base and the counterweight is larger than the moment of inertia about the center of gravity of the base 21 because the base 21 is provided with the counterweight 22. The shoe 20M is attached to the seat surface portion 15 so that the counterweight 22 is separated from the apron 4. In this case, the counterweight 22 may be disposed so as not to contact or be separated from the seat surface portion 15 or the constituent member of the step 10.

Therefore, also in embodiment 13, the same effects as those in embodiment 10 can be obtained.

In embodiments 8 to 11 and 13, the counterweight is fixed to the base by bonding, welding or the like, but the fixing means is not limited to these means, and the counterweight may be fixed to the base by a screw, fitting of a concave portion and a convex portion, a belt, a wire, or a rope. In the case where the weight is made of a magnetic material, the weight may be fixed to the base portion using a magnet.

Here, the inventors actually performed experiments, and as a result, when the specific gravity of the weight is smaller than that of the base, a sufficient vibration suppression effect cannot be obtained, and therefore the specific gravity of the weight is preferably 1.2 times or more the specific gravity of the base. In each embodiment, the weight of the weight is preferably 0.5 times or more the weight of the base. Further, although the margin for suppressing vibration increases as the specific gravity of the weight increases relative to the specific gravity of the base portion, the upper limit specific gravity of the weight is preferably 25 times or less the specific gravity of the base portion from the viewpoint of workability in mounting and maintenance.

In embodiments 1 to 6 and 8 to 13, the weight 22 is made of a material having a specific gravity greater than that of the base 21.

In order to suppress vibration of the shoe, it is effective to reduce the value of β so that the above equation (5) is satisfied. In embodiments 14 to 18, the conventional guide shoe 100 is provided with the counterweight 30, so that generation of sliding noise can be suppressed. That is, since the base 21 includes the counterweight 30, the mass of the shoes 0N to 20R is naturally increased, and the distance b from the contact point of the apron 4 with the base 21 to the combined center of gravity of the base 21 and the counterweight 30 is increased, thereby reducing the value of β. Therefore, the sliding state of the shoe 20N to 20R with respect to the apron 4 can be stabilized. As a result, the occurrence of sliding noise from the guide shoes 20N to 20R can be suppressed during long-term operation of the passenger conveyor. In addition, the distance from the contact point of the base 21 with the apron 4 to the center of gravity of the base 21 is referred to as the center of gravity distance.

Embodiment 14

Fig. 31 is a plan view showing a guide shoe 20N according to embodiment 14 of the present invention. Fig. 32 is a side view showing the guide shoe 20N according to embodiment 14 of the present invention. In the present embodiment, as shown in fig. 31, the guide shoe 20 is configured in the same manner as the guide shoes 20 shown in embodiments 1 to 13, except that the counterweight 30 is provided.

The pair of weights 30 are provided on the back surface of the base 21 so as to protrude toward the seat surface portion 15. When the base 21 and the weight 30 are regarded as a single body, the position of the combined center of gravity is located farther from the apron than the center of gravity of the base 21 alone. That is, a large center of gravity distance is ensured compared to the conventional guide shoe 100.

Embodiment 15

Fig. 33 is a plan view showing the guide shoe 20O in the step of the passenger conveyor according to embodiment 15 of the present invention, and fig. 34 is a side view showing the guide shoe 20O in the step of the passenger conveyor according to embodiment 15 of the present invention.

In fig. 33 and 34, a pair of weights 30 are provided on a pair of long-side surfaces of the base 21, respectively. The end of the weight 30 on the seat surface portion 15 side protrudes further toward the seat surface portion 15 side than the back surface of the base 21. The other structure is configured in the same manner as embodiment 14.

Embodiment 16

Fig. 35 is a plan view showing the guide shoe 20P in the step of the passenger conveyor according to embodiment 16 of the present invention, and fig. 36 is a sectional view taken along the direction XXXVI-XXXVI in fig. 35.

In fig. 35 and 36, the base 21D is made of a low-friction material, similarly to the base 21. Further, a weight 30 is insert-molded and embedded in front of and behind the base portion 21D in the sliding direction with the apron 4. Further, by embedding the counterweight 30 in the base 21D, the back surface of the base 21D has a portion protruding toward the seat surface portion 15.

Embodiment 17

Fig. 37 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 17 of the present invention, and fig. 38 is a sectional view taken from XXXVIII to XXXVIII in fig. 37.

In fig. 37 and 38, the pair of weights 30 of the base portion 21D are provided on the back surface of the base portion 21D. The other structure is the same as that of embodiment 16.

Embodiment 18

Fig. 39 is a plan view showing a guide shoe in a step of a passenger conveyor according to embodiment 18 of the present invention, and fig. 40 is a sectional view taken along the direction XXXX-XXXX in fig. 39.

In fig. 39 and 40, the weight 30B is a conical cylindrical body, i.e., an annular body having no tapered tip portion of a cone. The base 21 is arranged such that the tapered side of the weight 30B is located on the back surface of the base 21.

According to embodiment 18, the weight 30B is an annular conical cylindrical body. Therefore, the counterweight 30B does not contact the seat surface portion 15, and the center of gravity distance of the guide shoe can be secured.

In embodiments 14 to 18, the weight 30 is made of a material having a higher specific gravity than the base 21.

The weight 30 is provided so as to be integrated with the base 21 by integral molding, bonding, or welding with the base 21. Further, the weight 30 may be made of a material having a specific gravity larger than that of the base 21. Examples of the material having a higher specific gravity than that of the base 21 include metals such as iron, aluminum, copper, lead, and tungsten, stone, and glass.

In embodiments 1 to 6 and 8 to 13, the weight 22 is made of a material having a higher specific gravity than the base 21, but when the weight 22 is provided at a position where the moment of inertia about the combined center of gravity of the base 21 and the weight 22 is increased, the weight 22 may be made of a material having a specific gravity equal to or lower than the specific gravity of the base 21. Examples of the material having a specific gravity equal to or lower than that of the base 21 include a resin material, a rubber material, and wood. With this configuration, the increase in weight of the guide shoe can be suppressed, and therefore, the installation and maintenance workability of the passenger conveyor can be improved. In particular, when the material of the weight 22 is the same as that of the base 21, the manufacturing cost of the guide shoe can be reduced.

In embodiments 14 to 18, the weight 30 is made of a material having a specific gravity greater than that of the base 21, but the weight 30 may be made of a material having a specific gravity equal to or less than that of the base 21. Examples of the material having a specific gravity equal to or lower than that of the base 21 include a resin material, a rubber material, and wood. With this configuration, the increase in weight of the guide shoe can be suppressed, and therefore, the installation and maintenance workability of the passenger conveyor can be improved. Further, when the material of the weight 30 is the same as that of the base 21, the manufacturing cost of the guide shoe 20A can be suppressed.

In the above embodiments, the guide shoes are provided on the front wheel side of the steps, but the guide shoes may be provided on the rear wheel side of the steps, or may be provided on the front wheel side and the rear wheel side.

In the above embodiments, the weight is made of a single material having a higher specific gravity than that of the base, but the weight may be made of a plurality of materials as long as the weight includes a material having a higher specific gravity than that of the base. In addition, in the case where the fixing member that fixes the weight to the base portion functions as a part of the weight that adds mass to the base portion, the fixing member does not necessarily have to be a material having a specific gravity greater than that of the base portion.

In the embodiments, the weight is formed in a rectangular parallelepiped, an annular flat plate, a rod-shaped body, or the like, but any geometric shape may be adopted as long as the weight satisfies a predetermined weight or the specific gravity of the weight is higher than that of the base portion and the weight is in contact with the base portion. Examples of the other shapes include a cubic block, a circular plate, a round bar, a tube, a hexagonal material, an angle steel, a C-shaped steel, and an inclined block. In addition, in consideration of the cost of the components, a standard product or a commercially available product that is distributed in large quantities, such as a screw, a nut, a washer, a collar, a ring, and a pin, may be used as the counterweight. In addition, from the viewpoint of mounting and maintenance workability, a cushion tape having both a counterweight function and a sticking function may be used as the counterweight.

The present invention is not limited to the above embodiments, and includes all possible combinations of these features.

Description of the reference symbols

1: an entrance floor; 2: a railing; 4: a skirt board; 10: a step; 15: a seat surface portion; 20A-20R: a guide shoe; 21. 21A-21D: a base; 22. 22A-22D, 30: balancing weight; 23: and (4) a leg part.