CN112135788B - Passenger conveyor - Google Patents

Abstract

The escalator of this invention is provided with the truss which has the 1st truss end part and the 2nd truss end part; the 1st support apparatus which supports the 1st truss end part; and the 2nd support apparatus which supports the 2nd truss end part. The first support device can be switched between the first holding state and the first releasing state. In addition, the second support device can be switched between the second holding state and the second releasing state. In the escalator, at least one of the first holding state of the first support device and the second holding state of the second support device occurs.

Description

passenger conveyor

technical field

The present invention relates to a passenger conveyor provided with a truss.

Background technique

Regarding the passenger conveyor, there are escalators provided between the upper and lower floors of the building. One end of the truss of the escalator described in Patent Document 1 is fixed to a building with a fixing pin. In addition, the other end of the truss of the escalator is slidably supported with respect to the building. That is, one support point of the truss of the said escalator is a fixed support structure. In addition, another support point is a support structure that can slide.

In the event of an earthquake, the building shakes, causing relative movement between one support point and the other. At this time, when the displacement amount between one support point and the other is a certain amount or less, the other end of the truss slides relative to the building, and an excessive compressive force is not applied to the truss. In addition, when the displacement amount between one support point and the other is a certain amount or more, the fixing pins that fix the truss and the building are broken. Thereby, the 1st truss edge part of a truss can move with respect to a building, and an excessive compressive force is not applied to a truss.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 2015-078021

SUMMARY OF THE INVENTION

The problem to be solved by the invention

However, in the conventional escalator described in Patent Document 1, the fixing pin is broken due to large shaking. A truss that loses its fixed point moves relative to the building due to shaking. That is, the truss is displaced by the earthquake. Therefore, a restoration work for lifting the truss with a crane and returning it to the position at the time of installation is required.

The present invention has been made in order to solve the above-mentioned problems. Specifically, an object of the present invention is to provide a passenger conveyor that does not require restoration work even if there is a large shaking.

means of solving problems

The passenger conveyor of the present invention includes: a truss provided between the first fixing part and the second fixing part of the building, having a first truss end and a second truss end; and a first support device provided on the first truss end 1 fixing part supporting the end of the first truss; and a second supporting device provided on the second fixing part and supporting the end of the second truss, the first supporting device can make the first fixing part and the end of the first truss different. Switching between a first holding state in which relative movement is performed and a first releasing state in which the first fixing portion and the first truss end portion are relatively movable in the horizontal direction, the second support device can allow the second fixing portion and the first truss end to move relatively 2 Switching between the second holding state in which the truss ends do not move relative to each other and the second releasing state in which the second fixing part and the second truss end can move relatively in the horizontal direction, the passenger conveyor generates the first support device At least any one of the first holding state of the second support device and the second holding state of the second support device.

Invention effect

In the passenger conveyor of the present invention, at least one of the first holding state of the first support device and the second holding state of the second support device is generated. That is, regardless of the shaking, at least one of the first support device and the second support device always holds the truss in the building. Therefore, in the passenger conveyor of the present invention, it is not necessary to perform restoration work after the building is shaken.

Description of drawings

FIG. 1 is a schematic diagram of a building in which an escalator according to Embodiment 1 of the present invention is installed.

FIG. 2 is a schematic diagram showing an installation state of an escalator.

FIG. 3 is a side view showing the first support device in the first shaking state.

FIG. 4 is an enlarged view showing the first support device of the A part in FIG. 3 .

Fig. 5 is a side view showing the second support device in the first shaking state.

FIG. 6 is an enlarged view showing the second support device of the B part in FIG. 5 .

FIG. 7 shows the first support device in the second shaking state.

FIG. 8 shows the second support device in the second shaking state.

9 is a conceptual diagram showing a building, a first support device, and a second support device when shaking occurs.

10 is a side view showing the first support device in the first shaking state of the escalator according to Embodiment 2 of the present invention.

FIG. 11 is an enlarged view showing the first support device of the C part in FIG. 10 .

Fig. 12 is a side view showing the second support device in the first shaking state.

FIG. 13 is an enlarged view showing the first support device of the D part in FIG. 12 .

Fig. 14 is a side view showing the first support device in the second shaking state.

Fig. 15 is a side view showing the second support device in the second shaking state.

16 is a side view showing the first support device in the first shaking state of the escalator according to Embodiment 3 of the present invention.

17 is a side view showing the second support device in the first shaking state.

Fig. 18 is a side view showing the first support device in the second shaking state.

Fig. 19 is a side view showing the second support device in the second shaking state.

Detailed ways

Embodiment 1.

The passenger conveyor according to Embodiment 1 of the present invention, that is, the escalator will be described.

FIG. 1 is a schematic view of a building 1 in which an escalator 2 is installed. In this example, the escalator 2 is installed over the upper floor 10 of the third floor and the lower floor 11 of the second floor in the building 1 . In addition, regarding the direction in which the building inclines when shaking occurs, the right direction in FIG. 1 is taken as the positive direction.

FIG. 2 is a schematic diagram showing an installation state of the escalator 2 of FIG. 1 . The first fixing portion 12R is provided on the upper floor 10 . A second fixing portion 12L is provided on the lower floor 11 . The position of the first fixing portion 12R is higher than the position of the second fixing portion 12L, and is separated from the position of the second fixing portion 12L in the horizontal direction.

In the state where the building 1 does not shake, the horizontal distance between the 1st fixing|fixed part 12R and the 2nd fixing|fixed part 12L is larger than the reference distance mentioned later. When the building 1 is shaken by an earthquake, the first fixing portion 12R and the second fixing portion 12L relatively move. Therefore, the horizontal distance between the 1st fixing|fixed part 12R and the 2nd fixing|fixed part 12L changes. The amount of change in the horizontal distance varies depending on the magnitude of the earthquake and the structure of the building 1 . In this specification, when the building 1 shakes and the horizontal distance between the first fixing portion 12R and the second fixing portion 12L changes, both the upper limit value and the lower limit value of the horizontal distance are converged to the reference distance. A small shaking state within the above range is regarded as the first shaking state, and the change in the horizontal distance is large until the upper limit value of the horizontal distance is larger than the reference distance and the lower limit value of the horizontal distance is smaller than the reference distance. as the second shaking state.

The escalator 2 includes a truss 3 , and a first support device 4R and a second support device 4L that support the truss 3 .

The truss 3 is configured by combining a plurality of steel beams. Further, the truss 3 has a first truss end 31R located at one end of the truss 3 and a second truss end 31L located at the other end of the truss 3 .

The first truss end portion 31R includes a first support 32R. The 1st fixing|fixed surface 121R which opposes the 1st end surface 311R of the 1st truss end part 31R of the truss 3 is provided in the 1st fixing|fixed part 12R of the building 1.

The second truss end portion 31L includes a second support 32L. The second fixing surface 121L facing the second end surface 311L of the second truss end portion 31L of the truss 3 is provided in the second fixing portion 12L of the building 1 .

The 1st support apparatus 4R is provided in the 1st fixing|fixed part 12R. Moreover, the 1st support apparatus 4R supports the 1st truss edge part 31R of the truss 3. Thereby, the 1st truss edge part 31R of the truss 3 is supported by the 1st fixing|fixed part 12R via the 1st support apparatus 4R.

The 2nd support apparatus 4L is provided in the 2nd fixing|fixed part 12L. Further, the second support device 4L supports the second truss end portion 31L of the truss 3 . Thereby, the 2nd truss edge part 31L of the truss 3 is supported by the 2nd fixing|fixed part 12L via the 2nd support apparatus 4L.

FIG. 3 is a side view showing the first support device 4R of FIG. 2 . In addition, FIG. 4 is an enlarged view of the A part in FIG. 3 .

As shown in FIG. 3 , the first support 32R is an angle steel having an L-shaped cross section. The first support 32R includes a vertical connection portion 321R and a horizontal connection portion 322R. The cross-sectional shape of the first support 32R is formed into an L-shape by the vertical connection portion 321R and the horizontal connection portion 322R.

The vertical connection portion 321R is fixed to the first end surface 311R of the first truss end portion 31R. The horizontal connection portion 322R extends from the upper end portion of the vertical connection portion 321R to the first fixing portion 12R.

The first support device 4R includes a first fitting member 41R, a first receiving member 42R, and a first elastic deformation member 43R.

The first receiving member 42R is fixed to the first fixing portion 12R. Further, the first receiving member 42R is a plate-shaped member having a top surface portion 421R. The horizontal connection portion 322R of the first support 32R is slidably placed on the top surface portion 421R of the first receiving member 42R. A first gap 13R is provided in the horizontal direction between the vertical connection portion 321R of the first support 32R and the first fixing surface 121R of the first fixing portion 12R. The size of the first gap 13R is set to be a sufficient size so that the vertical connection portion 321R and the first end surface 311R do not come into contact with each other even in the second shaking state.

A first groove portion 422R into which the first fitting member 41R is fitted is formed in the top surface portion 421R of the first receiving member 42R. The cross-sectional shape of the first groove portion 422R viewed in the side view direction of the truss 3 is a right-angled triangle including the groove vertical surface portion 423R and the groove inclined surface portion 424R. The groove vertical surface portion 423R is perpendicular to the top surface portion 421R. The groove inclined surface portion 424R is inclined with respect to the top surface portion 421R. The groove vertical surface portion 423R is located on the side of the first truss end portion 31R with respect to the groove inclined surface portion 424R. The distance between the groove vertical surface portion 423R and the groove inclined surface portion 424R, that is, the width of the first groove portion 422R is wider than the opening portion above the first groove portion 422R, and narrows downward.

The first fitting member 41R includes a protruding vertical surface portion 411R and a protruding inclined surface portion 412R. The cross section of the 1st fitting member 41R in the side view of the escalator 2 is a right triangle. The protruding vertical surface portion 411R is located on the side of the first truss end portion 31R with respect to the protruding inclined surface portion 412R. In a state where the first fitting member 41R is fitted into the first groove portion 422R, the protruding vertical surface portion 411R is perpendicular to the top surface portion 421R of the first receiving member 42R, and the protruding inclined surface portion 412R is relative to the top surface portion of the first receiving member 42R. The 421R leans.

The first elastically deformable member 43R is a leaf spring. One end of the first elastically deformable member 43R is fixed to the horizontal connection portion 322R of the first support 32R. A first fitting member 41R formed separately from the first elastically deformable member 43R is provided at the other end of the first elastically deformable member 43R. In addition, the first elastic deformation member 43R and the first fitting member 41R may be integrally formed.

The first fitting member 41R and the first groove portion 422R are fitted with the protrusion vertical surface portion 411R in contact with the groove vertical surface portion 423R and the protrusion inclined surface portion 412R in contact with the groove inclined surface portion 424R. In a state where the first fitting member 41R is fitted into the first groove portion 422R, the first gap 13R is generated. The first fitting member 41R and the first receiving member 42R are fitted in a state in which the first elastic deformation member 43R is not elastically deformed. The first elastically deformable member 43R is elastically deformed by sliding the first fitting member 41R along the groove inclined surface portion 424R in the direction of separation from the first groove portion 422R. As a result, the first elastically deformable member 43R generates an elastic restoring force opposite to the force in the direction in which the first fitting member 41R is disengaged from the first groove portion 422R. That is, the first elastically deformable member 43R biases the first fitting member 41R by the elastic restoring force, so that the first fitting member 41R is fitted into the first groove portion 422R. When the fitting of the first fitting member 41R and the first groove portion 422R is disengaged, the first elastic deformation member 43R urges the first fitting member 41R in the direction of pressing the first fitting member 41R to the top surface portion 421R .

When the first fitting member 41R is fitted into the first groove portion 422R, the first support device 4R holds the first fixing portion 12R and the first truss end portion 31R so as not to move relative to each other. This state is the first holding state. Further, when the first fitting member 41R and the first groove portion 422R are disengaged, the first support device 4R releases the first fixing portion 12R and the first truss end portion 31R so that they can move relatively in the horizontal direction. This state is the first release state. The first support device 4R is capable of switching from the first holding state to the first releasing state and switching from the first releasing state to the first holding state.

FIG. 5 is a side view showing the second support device 4L of FIG. 2 . In addition, FIG. 6 is an enlarged view of the B part in FIG. 5 .

As shown in FIG. 5 , the second support 32L is an angle steel having an L-shaped cross section. The second support 32L includes a vertical connection portion 321L and a horizontal connection portion 322L. The cross-sectional shape of the second support 32L is formed into an L-shape by the vertical connection portion 321L and the horizontal connection portion 322L.

The vertical connection portion 321L is fixed to the second end surface 311L of the second truss end portion 31L. The horizontal connection portion 322L extends from the upper end portion of the vertical connection portion 321L toward the second fixing portion 12L.

The second support device 4L includes a second fitting member 41L, a second receiving member 42L, and a second elastically deformable member 43L.

The second receiving member 42L is fixed to the second fixing portion 12L. Further, the second receiving member 42L is a plate-like member having a top surface portion 421L. The horizontal connection portion 322L of the second support 32L is slidably placed on the top surface portion 421L of the second receiving member 42L. A second gap 13L is provided in the horizontal direction between the vertical connection portion 321L of the second support 32L and the second fixing surface 121L of the second fixing portion 12L. The size of the second gap 13L is set so that the vertical connection portion 321L and the second end surface 311L come into contact with each other in the second shaking state.

A second groove portion 422L into which the second fitting member 41L is fitted is formed in the top surface portion 421L of the second receiving member 42L. The cross-sectional shape of the second groove portion 422L viewed in the side view direction of the truss 3 is a right-angled triangle including the groove vertical surface portion 423L and the groove inclined surface portion 424L. The groove vertical surface portion 423L is perpendicular to the top surface portion 421L. The groove inclined surface portion 424L is inclined with respect to the top surface portion 421L. The groove inclined surface portion 424L is located on the side of the second truss end portion 31L with respect to the groove vertical surface portion 423L. The distance between the groove vertical surface portion 423L and the groove inclined surface portion 424L, that is, the width of the second groove portion 422L is wider than the opening portion above the second groove portion 422L, and narrows downward.

The second fitting member 41L includes a protruding vertical surface portion 411L and a protruding inclined surface portion 412L. The cross section of the second fitting member 41L in the side view of the escalator 2 is a right triangle. The protruding inclined surface portion 412L is located on the second truss end portion 31L side with respect to the protruding vertical surface portion 411L. In a state where the second fitting member 41L is fitted into the second groove portion 422L, the protruding vertical surface portion 411L is perpendicular to the top surface portion 421L of the second receiving member 42L, and the protruding inclined surface portion 412L is relative to the top surface portion of the second receiving member 42L. The 421L is tilted.

The second elastically deformable member 43L is a leaf spring. One end of the second elastically deformable member 43L is fixed to the horizontal connection portion 322L of the second support 32L. A second fitting member 41L formed separately from the second elastically deformable member 43L is provided at the other end of the second elastically deformable member 43L. In addition, the second elastic deformation member 43L and the second fitting member 41L may be integrally formed.

The second fitting member 41L and the second groove portion 422L are fitted in a state in which the protrusion vertical surface portion 411L is in contact with the groove vertical surface portion 423L and the protrusion inclined surface portion 412L is in contact with the groove inclined surface portion 424L. The second fitting member 41L and the second receiving member 42L are fitted in a state in which the second elastic deformation member 43L is not elastically deformed. The second elastically deformable member 43L is elastically deformed when the second fitting member 41L slides along the groove inclined surface portion 424L in the direction of separation from the second groove portion 422L. As a result, the second elastically deformable member 43L generates an elastic restoring force opposite to the force in the direction in which the second fitting member 41L is disengaged from the second groove portion 422L. That is, the second elastically deformable member 43L biases the second fitting member 41L by the elastic restoring force, so that the second fitting member 41L is fitted into the second groove portion 422L. When the fitting of the second fitting member 41L and the second groove portion 422L is disengaged, the second elastic deformation member 43L urges the second fitting member 41L in the direction of pressing the second fitting member 41L to the top surface portion 421L. .

In a state where the second fitting member 41L is fitted into the second groove portion 422L, the second truss end portion 31L is in contact with the second fixing portion 12L. When the truss 3 is installed, the second fitting member 41L is disengaged from the second groove portion 422L, and a second gap 13L is generated between the second truss end portion 31L and the second fixing portion 12L.

When the second fitting member 41L is fitted into the second groove portion 422L, the second support device 4L holds the second fixing portion 12L and the second truss end portion 31L so as not to move relative to each other. This state is the second holding state. Further, when the second fitting member 41L and the second groove portion 422L are disengaged, the second support device 4L releases the second fixing portion 12L and the second truss end portion 31L so that they can move relatively in the horizontal direction. This state is the second release state. The second support device 4L is capable of switching from the second holding state to the second releasing state and switching from the second releasing state to the second holding state.

When the truss 3 is installed and in the first shaking state, the second fitting member 41L is disengaged from the second groove portion 422L. That is, when the truss 3 is installed and in the first rocking state, the second support device 4L is in the second released state in which the second truss end portion 31L of the truss 3 is slidable with respect to the second fixing portion 12L. Therefore, in the case of the first shaking state, the horizontal connection portion 322L of the second support 32L slides on the top surface portion 421L of the second receiving member 42L.

The reference distance between the first fixing portion 12R and the second fixing portion 12L means that the first fitting member 41R is fitted into the first groove portion 422R, and the second fitting member 41L is fitted into the second groove portion 422L. The horizontal distance between the first fixing portion 12R and the second fixing portion 12L in the state of . In other words, the reference distance is a distance obtained by subtracting the interval of the second gap 13L provided when the truss 3 is installed from the horizontal distance between the first fixed portion 12R and the second fixed portion 12L when the truss 3 is installed.

FIG. 7 is a side view showing the first support device 4R in which the horizontal distance between the first fixing portion 12R and the second fixing portion 12L of FIG. 2 is smaller than the reference distance. 8 is a side view showing the second support device 4L in which the horizontal distance between the first fixing portion 12R and the second fixing portion 12L of FIG. 2 is smaller than the reference distance. At the time of installation and in the first shaking state, the first support device 4R is in the first holding state, and the second support device 4L is in the second release state. Therefore, the second truss end portion 31L can move relatively with respect to the second fixing portion 12L. With the shaking of the building 1 , the first truss end 31R held by the building 1 also shakes together with the building 1 . Therefore, the 2nd truss edge part 31L which is not held by the building 1 approaches the 2nd fixing|fixed part 12L, rocking. And finally, the 2nd truss edge part 31L comes into contact with the 2nd fixing|fixed part 12L. As shown in FIG. 8 , when the second truss end portion 31L comes into contact with the second fixing portion 12L, the second fitting member 41L is fitted into the second groove portion 422L of the second receiving member 42L. That is, the 2nd support apparatus 4L becomes a 2nd holding state. When the second support device 4L is in the second holding state, the second truss end portion 31L and the second fixing portion 12L cannot move relative to each other.

After the second truss end portion 31L is in contact with the second fixing portion 12L and the second support device 4L is in the second holding state, by continuing to shake, the second truss end portion 31L and the second fixing portion 12L are relatively moved in a direction in which they approach further. . Therefore, a horizontal load acts between the protruding vertical surface portion 411L of the second fitting member 41L and the groove vertical surface portion 423L of the second receiving member 42L in the direction of approaching each other. As a result, the protrusion vertical surface portion 411L presses the groove vertical surface portion 423L. Since both the protrusion vertical surface portion 411L and the groove vertical surface portion 423L are vertical surfaces, sliding does not occur between the surfaces of the protrusion vertical surface portion 411L and the groove vertical surface portion 423L. Therefore, the horizontal load of the protrusion vertical surface portion 411L pressing the groove vertical surface portion 423L acts on the truss 3 . That is, the rocking motion of the building 1 acts on the second truss end 31L as a horizontal load via the second truss end 31L and the second fixing part 12L that move integrally. As a result, the truss 3 is pressed.

When the truss 3 is pressed, in the first support device 4R, the protruding inclined surface portion 412R of the first fitting member 41R and the groove inclined surface portion 424R of the first receiving member 42R act in a direction in which they approach each other. horizontal load. Both the protrusion inclined surface portion 412R and the groove inclined surface portion 424R are inclined surfaces. Therefore, by the horizontal load acting between the protruding inclined surface portion 412R and the groove inclined surface portion 424R, the protruding inclined surface portion 412R relatively moves so as to slide up along the groove inclined surface portion 424R. As a result, the first fitting member 41R is disengaged from the first groove portion 422R of the first receiving member 42R. Therefore, the 1st truss edge part 31R can move relatively with respect to the 1st fixing|fixed part 12R.

Even if a horizontal load acts between the projection vertical surface portion 411L and the groove vertical surface portion 423L, that is, between the vertical surfaces, the second fitting member 41L and the second groove portion 422L are fitted even if a horizontal load acts in a direction in which they approach each other. won't leave. The second support device 4L maintains the second holding state. In addition, when a horizontal load acts between the protruding inclined surface portion 412R and the groove inclined surface portion 424R, that is, between the inclined surfaces, in a direction in which they approach each other, the first fitting member 41R and the first groove portion 422R are fitted with each other. Coupling and disengaging. As a result, the first support device 4R changes from the first holding state to the first releasing state.

In the second shaking state in which the shaking is larger than the first shaking state, the second support device 4L is switched from the second release state to the second holding state while the building 1 is shaking. Moreover, the 1st support apparatus 4R switches from a 1st hold state to a 1st release state at the same time as 4 L of 2nd support apparatuses switch from a 2nd release state to a 2nd hold state. That is, in the second shaking state, the device for holding the truss 3 is switched from the second support device 4L to the first support device 4R.

The first support device 4R and the second support device 4L operate as follows with respect to fluctuations in the horizontal distance between the first fixed portion 12R and the second fixed portion 12L. When the horizontal distance between the first fixing portion 12R and the second fixing portion 12L is the reference distance, the first supporting device 4R is in the first holding state, and the second supporting device 4L is in the second holding state. In addition, when the horizontal distance between the 1st fixing|fixed part 12R and the 2nd fixing|fixed part 12L is larger than a reference distance, the 1st support apparatus 4R will be in a 1st holding state, and the 2nd support apparatus 4L will be in a 2nd release state. Further, when the horizontal distance between the first fixing portion 12R and the second fixing portion 12L is smaller than the reference distance, the first support device 4R is in the first release state, and the second support device 4L is in the second holding state.

The horizontal load when the first support device 4R is switched from the first holding state to the first releasing state is as follows. The horizontal load ratio at which the first support device 4R is switched to the first released state is the inertial force in the horizontal direction of the truss 3 acting on the truss 3 when the building 1 shakes, and the second truss end 31L of the truss 3 and the second support The horizontal load determined by both the frictional force between the devices 4L is larger and smaller than the compressive strength of the truss 3 . Moreover, the horizontal load when 4R of 1st support apparatuses switch from a 1st holding state to a 1st release state acts on the truss 3 as a compressive load.

In addition, the horizontal load when the 2nd support apparatus 4L is switched from the 2nd holding state to the 2nd releasing state is as follows. The horizontal load ratio at which the second support device 4L is switched to the second released state is the inertial force in the horizontal direction of the truss 3 acting on the truss 3 when the building 1 shakes, and the ratio between the first truss end 31R and the first support device 4R The horizontal load determined by both the frictional force between them is larger and smaller than the breaking strength of the first support device 4R. In addition, the horizontal load when the second support device 4L is switched from the second holding state to the second releasing state acts on the truss 3 as a tensile load.

Next, the relationship between the shaking of the building 1 when an earthquake occurs and the respective operations of the first support device 4R and the second support device 4L with respect to the shaking will be described. FIG. 9 is a conceptual diagram showing the relationship between the shaking of the building 1 and the respective operations of the first support device 4R and the second support device 4L. In addition, in FIG. 9(A) to FIG. 9(H), for easy understanding, the position of the 2nd fixing|fixed part 12L is fixed and described in each figure.

(A) of FIG. 9 shows the state at the time of installation of the truss 3 . When the truss 3 is installed, the first support device 4R is in the first holding state, and the second support device 4L is in the second release state.

FIG. 9(B) shows the first support device 4R and the second support device 4L when the building 1 is inclined in the forward direction in the first shaking state. Moreover, FIG.9(C) has shown the 1st support apparatus 4R and the 2nd support apparatus 4L when the building 1 inclines in the negative direction in the 1st rocking state. When the building 1 inclines in the forward direction in the first rocking state, as shown in FIG. 9(B) , the horizontal distance between the first fixing portion 12R and the second fixing portion 12L becomes larger than when the truss 3 is installed. Thereby, the 1st support apparatus 4R maintains the 1st holding state, the 2nd support apparatus 4L maintains the 2nd release state, and the truss 3 moves to the positive direction with respect to the 2nd fixing|fixed part 12L. At this time, the second truss end portion 31L slides with respect to the second receiving member 42L. As a result, the second gap 13L between the vertical connection portion 321L of the second support 32L and the second fixing surface 121L of the second fixing portion 12L is widened.

After that, when the building 1 inclines in the negative direction, as shown in FIG. 9(C) , the first support device 4R maintains the first holding state, the second support device 4L maintains the second release state, and the truss 3 moves in the negative direction. At this time, the second truss end portion 31L slides with respect to the second receiving member 42L, and the second gap 13L is narrowed. That is, the horizontal distance between the 1st fixing|fixed part 12R and the 2nd fixing|fixed part 12L is narrower than when the truss 3 is provided.

That is, in the first shaking state, the first support device 4R maintains the first holding state, the second support device 4L maintains the second release state, and the states of FIGS. 9(B) and 9(C) are repeated. Then, finally shake to converge.

FIGS. 9(D) to 9(H) show the relationship between the shaking of the building 1 in the second shaking state and the respective states of the first support device 4R and the second support device 4L. When the shaking state of the building 1 is the second shaking state, the building 1 shakes more than in the first shaking state. As shown in FIG. 9(D) , in the second rocking state, when the building 1 is inclined in the forward direction, the horizontal distance between the first fixing portion 12R and the second fixing portion 12L is higher than the horizontal distance when the truss 3 is installed wide distance. At this time, the first support device 4R maintains the first holding state, the second support device 4L maintains the second release state, and the truss 3 moves in the forward direction. Therefore, the side of the second truss end portion 31L slides with respect to the second receiving member 42L. As a result, the second gap 13L between the vertical connection portion 321L of the second support 32L and the second fixing surface 121L is wider than that in FIG. 9(B) in the first shaking state. The length of the second receiving member 42L with which the vertical connection portion 321L overlaps is a sufficient length so that the truss 3 does not fall off even when the shaking reaches the maximum. Therefore, the overlap margin of the vertical connection portion 321L to the second receiving member 42L is sufficiently ensured, and the truss 3 is always supported by the building 1 even if shaking occurs.

(E) of FIG. 9 shows a state immediately after (D) of FIG. 9 . When the building 1 is inclined in the negative direction, the horizontal distance between the first fixing portion 12R and the second fixing portion 12L is narrowed. At this time, the first support device 4R maintains the first holding state, the second support device 4L maintains the second release state, and the truss 3 moves in the negative direction. Therefore, the second truss end portion 31L slides with respect to the second receiving member 42L. The second gap 13L between the vertical connecting portion 321L of the second support 32L and the second fixing surface 121L disappears, and the vertical connecting portion 321L is in contact with the second fixing surface 121L. That is, the horizontal distance between the 1st fixing|fixed part 12R and the 2nd fixing|fixed part 12L becomes a reference distance. At this time, the second support device 4L is switched from the second release state to the second holding state. That is, the first support device 4R maintains the first holding state, and the second support device 4L becomes the second holding state. Thereby, the motion of the second fixing portion 12L caused by the shaking is transmitted to the truss 3 . As a result, a horizontal load acts on the truss 3 from the second fixing portion 12L via the second support device 4L. Therefore, the horizontal load starts to be applied to the first support device 4R via the truss 3 .

(F) of FIG. 9 shows a state immediately after (E) of FIG. 9 . As the building 1 is further inclined in the negative direction, the horizontal load acting on the truss 3 is larger than that in the state of (E) of FIG. 9 . While the first support device 4R is in the first holding state, the horizontal load acting on the truss 3 acts on the truss 3 as a compressive load. Then, when the horizontal load acting on the truss 3 reaches the switching load for switching the first support device 4R to the first released state, the first support device 4R switches from the first holding state to the compressive strength load of the truss 3 before reaching the compressive strength load of the truss 3 . 1st release state. After that, when the building 1 is further inclined in the negative direction due to the continuous shaking, the truss 3 moves further with respect to the first fixing portion 12R, and the first truss end portion 31R slides with respect to the first receiving member 42R. Therefore, the horizontal distance between the first fixing portion 12R and the second fixing portion 12L becomes narrower than that in FIG. 9(E) , and the first gap 13R between the vertical connection portion 321R and the first fixing surface 121R is narrowed. . When the first support device 4R is switched to the first release state, the first truss end portion 31R slides with respect to the first fixing portion 12R, and thus the compressive load acting on the truss 3 is sharply reduced.

(G) of FIG. 9 shows a state immediately after (F) of FIG. 9 . With respect to (F) of FIG. 9, the building 1 is in the state which started to shake in the opposite direction. When the building 1 starts to shake in the positive direction after shaking in the negative direction, the first truss end portion 31R slides in the positive direction, and the first gap 13R expands. After that, the first fitting member 41R reaches the first groove portion 422R, and the first fitting member 41R is fitted into the first groove portion 422R. That is, the 1st support apparatus 4R switches from a 1st release state to a 1st hold state.

(H) of FIG. 9 shows the state after the shaking of the building 1 has converged from the state of (G) of FIG. 9 . The building 1 is returned to the installation state by further shaking in the forward direction from the state of FIG. 9(G) . At this time, the first support device 4R maintains the holding state, the second support device 4L maintains the holding state, and the truss 3 moves in the forward direction. Therefore, the second fitting member 41L is disengaged from the second groove portion 422L. That is, the 1st support apparatus 4R returns to the 2nd release state which is the same as when the truss 3 was installed. As a result, the second truss end portion 31L slides with respect to the second receiving member 42L. When the building 1 returns to the installation state, the second gap 13L becomes wider than the state of FIG. 9(G). That is, the distance between the 1st fixing|fixed part 12R and the 2nd fixing|fixed part 12L becomes wider than the state of FIG.9(G). The position of the truss 3 with respect to the building 1 , the state of the first support device 4R, and the state of the second support device 4L are returned to the state at the time of installation.

In the escalator 2 according to Embodiment 1 of the present invention, the first support device 4R can be switched between the first holding state and the first release state, and the second support device 4L can be switched between the second holding state and the second release state switch between. In addition, even if the building 1 is shaken and the states of the first support device 4R and the second support device 4L are switched, the escalator 2 will generate the first holding state of the first support device 4R and the second support device 4L. At least one of the second holding states. That is, at least one of the first support device 4R and the second support device 4L always keeps the truss 3 and the building 1 in a state where they do not move relative to each other. Therefore, even if the building 1 shakes and the truss 3 moves relative to the building 1, the position of the truss 3 can be maintained with respect to at least one of the first fixing portion 12R and the second fixing portion 12L. Therefore, when the building 1 shakes, the positions of the truss 3 with respect to both the first fixing portion 12R and the second fixing portion 12L can be prevented from being displaced simultaneously. Thereby, even when the building 1 shakes, the positions of the escalator 2 relative to the first fixing portion 12R and the second fixing portion 12L can be automatically returned to the original positions, and the escalator 2 does not need to be Restore job.

In addition, the magnitude of the horizontal load required for switching from the first holding state to the first releasing state and switching from the second holding state to the second releasing state is a load smaller than the compressive strength of the truss 3 . Therefore, it is possible to prevent the truss 3 from being applied with a horizontal load equal to or greater than the compressive strength. As a result, damage to the truss 3 can be prevented.

Embodiment 2.

Embodiment 2 of the present invention is different from Embodiment 1 in that the first elastically deformable member 53R and the second elastically deformable member 53L are coil springs. In addition, the difference is that a first holding member 54R and a second holding member 54L are provided which hold the first elastically deformable member 53R and the second elastically deformable member 53L, respectively. Other points are the same as those of the first embodiment. In the following description, the same reference numerals are used for the same components as those in the first embodiment.

FIG. 10 is a side view showing the first support device 5R in the first shaking state. FIG. 10 is a diagram corresponding to FIG. 3 in Embodiment 1. FIG. In addition, FIG. 11 is an enlarged view of the C part in FIG. 10 . FIG. 11 is a diagram corresponding to FIG. 4 in the first embodiment.

The first holding member 54R is fixed to one end of the horizontal connection portion 322R of the first support 32R. The first holding member 54R is a bottomed cylindrical member. The first holding member 54R is fixed to the horizontal connection portion 322R so that the opening portion faces downward.

The first elastically deformable member 53R is a coil spring. The first elastically deformable member 53R is accommodated in the first holding member 54R. One end of the first elastically deformable member 53R is fixed to the bottom of the inner bottom portion of the bottomed cylindrical shape of the first holding member 54R. In addition, the first fitting member 41R is fixed to the other end of the first elastically deformable member 53R. In addition, the shape and mounting direction of the first fitting member 41R are the same as those of the first embodiment. The first fitting member 41R includes the protruding vertical surface portion 411R and the protruding inclined surface portion 412R, and is attached so that the tapered portion formed by the protruding vertical surface portion 411R and the protruding inclined surface portion 412R faces downward.

The first elastically deformable member 53R and the first fitting member 41R are attached in such a manner that the first elastically deformable member 53R faces the top surface portion 421R of the first receiving member 42R with respect to the first fitting member 41R in contact with the top surface portion 421R of the first receiving member 42R. The 421R applies force vertically. The conditions and functions of the switching operation between the first holding state and the first releasing state of the first support device 5R are the same as those of the first embodiment in which the first elastically deformable member 53R is a leaf spring.

FIG. 12 is a side view showing the second support device 5L in the first shaking state. FIG. 12 is a diagram corresponding to FIG. 5 in the first embodiment. FIG. 13 is an enlarged view of the D part in FIG. 12 . FIG. 13 is a diagram corresponding to FIG. 6 in Embodiment 1. FIG.

The second holding member 54L is fixed to one end of the horizontal connection portion 322L of the second support 32L. The second holding member 54L is a bottomed cylindrical member. The second holding member 54L is fixed to the horizontal connection portion 322L so that the opening portion faces downward.

The second elastically deformable member 53L is a coil spring. The second elastically deformable member 53L is accommodated in the second holding member 54L. One end of the second elastically deformable member 53L is fixed to the bottom of the bottomed cylindrical inner side of the second holding member 54L. In addition, the second fitting member 41L is fixed to the other end of the second elastically deformable member 53L. In addition, the shape and mounting direction of the second fitting member 41L are the same as those of the first embodiment. The second fitting member 41L includes the protruding vertical surface portion 411L and the protruding inclined surface portion 412L, and is attached so that the tapered portion formed by the protruding vertical surface portion 411L and the protruding inclined surface portion 412L faces downward.

The second elastically deformable member 53L and the second fitting member 41L are attached in such a manner that the second elastically deformable member 53L faces the top surface portion 421L of the second receiving member 42L with respect to the second fitting member 41L in contact with the top surface portion 421L of the second receiving member 42L. The 421L applies force vertically. The conditions and functions of the switching operation between the second holding state and the second releasing state of the second support device 5L are the same as those of the first embodiment in which the second elastically deformable member 53L is a leaf spring.

FIG. 14 is a side view showing the first support device 5R of FIG. 10 in the second shaking state. 15 is a side view showing the second support device 5L of FIG. 12 in the second shaking state. The conditions and functions of the switching operation between the first holding state and the first releasing state of the first support device 5R in the second rocking state are the same as those of the first embodiment in which the first elastically deformable member 53R is a leaf spring. Similarly, the conditions and functions of the switching operation between the second holding state and the second releasing state of the second support device 5L in the second rocking state are the same as those in Embodiment 1 in which the second elastically deformable member 53L is a leaf spring.

The first elastically deformable member 53R and the second elastically deformable member 53L in Embodiment 2 of the present invention are formed as coil springs. Therefore, the movement directions of the first fitting member 41R and the second fitting member 41L can be made to be the vertical direction with respect to the top surface portions 421R and 421L. Thereby, the lengths of the first support device 5R and the second support device 5L in the direction of the horizontal connection portions 322R and 322L, that is, in the horizontal direction can be shortened. In addition, since it is a coil spring capable of forming a longer spring stroke than a leaf spring, the first elastically deformable member 53R and the second elastically deformable member 53L can have a state switching operation that is optimal for the first support device 5R and the second support device 5L spring characteristics. For example, the first elastically deformable member 53R and the second elastically deformable member 53L can have a softer displacement with respect to the displacement than the first elastically deformable member 43R and the second elastically deformable member 43L constituted by the leaf spring in the first embodiment. Retractable spring properties.

Embodiment 3.

The third embodiment of the present invention is different from the first embodiment in the configuration for bringing the first support device 6R and the second support device 6L into the holding state. In the first embodiment, the first support device 4R and the second support device 4L are in the holding state by fitting of the members, but in the third embodiment, they are in the holding state by the attracting action of the magnets. It is the same as that of Embodiment 1 except for the part which changes with respect to this change. In the following description, the same reference numerals are used for the same components as those in the first embodiment.

FIG. 16 is a side view showing the first support device 6R in the first shaking state. FIG. 16 is a diagram corresponding to FIG. 3 in the first embodiment.

The first support device 6R includes a first magnet device 64R, a first receiving member 62R, and a first holding member 63R. The first receiving member 62R is a plate-shaped member fixed to the first fixing portion 12R. The horizontal connection portion 322R of the first support 32R is slidably placed on the top surface portion of the first receiving member 62R.

The first holding member 63R is a rod-shaped member whose one end is fixed to the horizontal connection portion 322R of the first support 32R and extends in the horizontal direction in a direction away from the first support 32R. A short right-angled portion bent downward at a right angle is formed at the other end portion of the first holding member 63R.

The first magnet device 64R includes a first fixed portion side magnet 65R and a first truss end portion side magnet 66R. The first fixing portion side magnet 65R is fixed to the top surface portion of the first receiving member 62R. Moreover, the 1st truss edge part side magnet 66R is being fixed to the right-angle part formed in the other end part of the 1st holding member 63R. Therefore, the 1st truss end side magnet 66R moves with the movement of the 1st truss end part 31R.

The attachment position of the 1st fixed part side magnet 65R on the 1st receiving member 62R is determined as follows. First, the truss 3 is installed so that the first gap 13R is provided between the vertical connection portion 321R of the first support 32R and the first fixing surface 121R of the first fixing portion 12R. The size of the first gap 13R is such that the vertical connection portion 321R and the first fixing surface 121R do not come into contact with each other even in the second shaking state. In this state, the first fixing portion side magnet 65R is fixed to the first receiving member 62R at a position in contact with the first truss end portion side magnet 66R fixed to the first holding member 63R. That is, when the truss 3 is installed, the first truss end side magnets 66R and the first fixed part side magnets 65R are attracted, and the first support device 6R is in the first holding state.

The conditions and effects of the switching operation of the first holding state and the first releasing state of the first support device 6R are the same as those of the first support device 4R in the first embodiment.

FIG. 17 is a side view showing the second support device 6L in the first shaking state. FIG. 17 is a diagram corresponding to FIG. 5 in the first embodiment.

The second support device 6L includes a second magnet device 64L and a second receiving member 62L. The second receiving member 62L is a plate-shaped member fixed to the second fixing portion 12L. The horizontal connection portion 322L of the second support 32L is slidably placed on the top surface portion of the second receiving member 62L.

The second magnet device 64L includes a second fixed portion side magnet 65L and a second truss end portion side magnet 66L. The second fixing portion side magnet 65L is fixed to the top surface portion of the second receiving member 62L. In addition, the second truss end side magnet 66L is fixed to the horizontal connection portion 322L. Therefore, the second truss end side magnet 66L moves along with the movement of the truss 3 .

The attachment position of the second fixing portion side magnet 65L on the second receiving member 62L is determined as follows. First, when installing the truss 3, the truss 3 is installed so that the second gap 13L is provided between the vertical connection portion 321L of the second support 32L and the second fixing surface 121L of the second fixing portion 12L. The size of the second gap 13L is the size at which the vertical connection portion 321L contacts the second fixing surface 121L in the second shaking state. In the second rocking state, when the second gap 13L disappears, that is, when the vertical connecting portion 321L contacts the first fixing surface 121R, the second fixing portion side magnet is fixed at the position where the second truss end portion side magnet 66L contacts. 65L. That is, when the truss 3 is installed, the second fixed portion side magnet 65L and the second truss end portion side magnet 66L do not come into contact with each other. When the truss 3 is installed, the second support device 6L is in the second released state.

The ratio of the attraction force between the second fixed portion side magnet 65L of the second support device 6L and the second truss end portion side magnet 66L is the frictional force when the first truss end portion 31R slides on the first receiving member 62R, and the The horizontal load determined by both the inertial forces in the horizontal direction of the truss 3 during shaking is stronger than the attraction force between the first fixed portion side magnet 65R and the first truss end portion side magnet 66R of the first support device 6R.

In addition, the attraction force between the first fixed portion side magnet 65R of the first support device 6R and the first truss end portion side magnet 66R is larger than the frictional force when the second truss end portion 31L slides on the second receiving member 62L, And the horizontal load determined by the inertial force in the horizontal direction of the truss 3 when shaking occurs is stronger than the compressive strength load of the truss 3 .

In the second support device 6L, the conditions and effects of the switching operation between the second holding state and the second release state are the same as those of the second support device 4L in the first embodiment.

FIG. 18 is a side view showing the first support device 6R of FIG. 16 in the second shaking state. FIG. 18 is a diagram corresponding to FIG. 7 in the first embodiment. Moreover, FIG. 19 is a side view which shows the 2nd support apparatus 6L of FIG. 17 in a 2nd shaking state. FIG. 19 is a diagram corresponding to FIG. 8 in the first embodiment.

In Embodiment 3 of this invention, 6R of 1st support apparatuses are provided with the 1st fixed part side magnet 65R and the 1st truss end part side magnet 66R. Further, the second support device 6L includes a second fixed portion side magnet 65L and a second truss end portion side magnet 66L. In this way, by using a magnet, the first holding state and the first releasing state of the first support device 6R can be switched, and the second holding state and the second releasing state of the second support device 6L can be switched. In addition, since it is not necessary to take the time and effort of machining grooves for the first receiving member 62R and the second receiving member 62L, respectively, it is possible to reduce the time and effort of manufacturing each of the first support device 6R and the second support device 6L.

In each of the above-described embodiments, the following changes can be made.

In each of Embodiments 1 to 3, for both the first support device and the second support device, only the fitting of members or the attraction of magnets is used. However, the first support device and the second support device may be configured by combining the above-described aspects. For example, the first support device may be a fitting structure, and the second support device may be a magnetic adsorption structure. In addition, the first support device may be a magnetic adsorption structure, and the second support device may be a fitting structure. Also in this case, the same effects as in the case of Embodiment 1 can be obtained.

In the present invention, the first support 32R and the second support 32L are provided at the first truss end 31R and the second truss end 31L as other members, respectively. The first support 32R and the second support 32L may be formed integrally with the first truss end 31R and the second truss end 31L, respectively. Also in this case, the same effects as in the case of Embodiment 1 can be obtained.

In each of Embodiments 1 to 3, the present invention is applied to a passenger conveyor, that is, an escalator 2 installed between an upper floor 10 and a lower floor 11 having different floor heights. However, the present invention can also be applied to a place other than the upper floor 10 and the lower floor 11 having different floor heights, for example, a passenger conveyor installed between floors of the same height, ie, moving walks. Furthermore, the present invention can also be applied to passenger conveyors that are provided outside the building instead of the inside of the building. In either case, the same effects as in the case of Embodiment 1 can be obtained.

In the present invention, the case where the building 1 is shaken by an earthquake has been described. However, the same effects as in the case of Embodiment 1 can be obtained for shaking due to wind or shaking due to other causes other than earthquakes.

In addition, in the present invention, within the scope of the invention, the embodiments can be freely combined, or the embodiments can be appropriately modified or omitted.

Label description

1: building; 2: escalator; 3: truss; 4R, 5R, 6R: first support device; 4L, 5L, 6L: second support device; 12R: first fixed part; 12L: second fixed part; 31R: 1st truss end; 31L: 2nd truss end; 41R: 1st fitting member; 41L: 2nd fitting member; 42R, 62R: 1st receiving member; 42L, 62L: 2nd receiving member; 43R, 53R: 1st elastic deformation member; 43L, 53L: 2nd elastic deformation member; 65R: 1st fixing part side magnet; 65L: 2nd fixing part side magnet; 66R: 1st truss end part side magnet; 66L: 2nd truss end side magnet; 422R: 1st groove part; 422L: 2nd groove part.

Claims (8)

1. A passenger conveyor is provided with:

a truss which is arranged between a 1 st fixing part and a 2 nd fixing part of the building and is provided with a 1 st truss end part and a 2 nd truss end part;

a 1 st support device provided at the 1 st fixing section and supporting the 1 st truss end; and

a 2 nd support device provided at the 2 nd fixing portion and supporting the 2 nd truss end portion,

the 1 st supporting device is switchable between a 1 st holding state in which the 1 st fixing part and the 1 st truss end part are not relatively moved and a 1 st releasing state in which the 1 st fixing part and the 1 st truss end part are relatively moved in a horizontal direction,

the 2 nd supporting device can be switched between a 2 nd holding state in which the 2 nd fixing part and the 2 nd truss end part are not relatively moved and a 2 nd releasing state in which the 2 nd fixing part and the 2 nd truss end part are relatively moved in the horizontal direction,

the passenger conveyor creates at least either one of the 1 st holding state of the 1 st support device and the 2 nd holding state of the 2 nd support device,

the 1 st supporting device is capable of switching from the 1 st holding state to the 1 st releasing state and from the 1 st releasing state to the 1 st holding state,

the 2 nd supporting device is capable of switching from the 2 nd holding state to the 2 nd releasing state and from the 2 nd releasing state to the 2 nd holding state.

2. The passenger conveyor according to claim 1,

the 1 st supporting device is in the 1 st holding state and the 2 nd supporting device is in the 2 nd holding state when a horizontal distance between the 1 st fixing part and the 2 nd fixing part is a reference distance,

when the horizontal distance between the 1 st fixing part and the 2 nd fixing part is larger than the reference distance, the 1 st supporting device is in the 1 st holding state, and the 2 nd supporting device is in the 2 nd releasing state,

when the horizontal distance between the 1 st fixing part and the 2 nd fixing part is smaller than the reference distance, the 1 st supporting device is in the 1 st released state, and the 2 nd supporting device is in the 2 nd held state.

3. The passenger conveyor according to claim 1 or 2,

the 2 nd supporting means is switched from the 2 nd holding state to the 2 nd releasing state in accordance with a horizontal load applied to the 2 nd supporting means,

the horizontal load is larger than a horizontal load determined by both an inertia force in a horizontal direction of the truss acting on the truss when the building sways and a frictional force between the 1 st truss end and the 1 st supporting device, and is smaller than a breaking strength of the 1 st supporting device.

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

the 1 st supporting means is switched from the 1 st holding state to the 1 st releasing state in accordance with a horizontal load applied to the 1 st supporting means,

the horizontal load is larger than a horizontal load determined by both an inertia force in a horizontal direction of the truss acting on the truss when the building shakes and a frictional force between the 2 nd truss end of the truss and the 2 nd support device, and is smaller than a compressive strength of the truss.

5. The passenger conveyor according to any one of claims 1 to 4,

the 1 st supporting device comprises:

a 1 st receiving member having a 1 st groove portion on which the 1 st truss end is placed;

a 1 st fitting member to be fitted to the 1 st groove portion; and

a 1 st elastic deformation member fixed to an end of the 1 st truss, for urging the 1 st fitting member to fit the 1 st fitting member into the 1 st groove,

the 1 st holding state is achieved by fitting the 1 st fitting member to the 1 st groove portion.

6. The passenger conveyor according to any one of claims 1 to 4,

the 1 st supporting device comprises:

a 1 st receiving member on which the 1 st truss end is placed;

a 1 st fixing portion side magnet provided on the 1 st receiving member; and

a 1 st truss end portion side magnet provided at the 1 st truss end portion,

the 1 st truss end portion side magnet and the 1 st fixing portion side magnet are attracted to each other to be in the 1 st holding state.

7. The passenger conveyor according to any one of claims 1 to 6,

the 2 nd support device has:

a 2 nd receiving member having a 2 nd groove part for placing the 2 nd truss end part;

a 2 nd fitting member to be fitted to the 2 nd groove portion; and

a 2 nd elastically deforming member fixed to an end of the 2 nd truss, for urging the 2 nd fitting member to fit the 2 nd fitting member into the 2 nd groove,

the 2 nd holding state is achieved by fitting the 2 nd fitting member to the 2 nd groove portion.

8. The passenger conveyor according to any one of claims 1 to 6,

the 2 nd support device has:

a 2 nd receiving member on which the 2 nd truss end is placed;

a 2 nd fixing unit side magnet provided on the 2 nd receiving member; and

a 2 nd truss end portion side magnet provided at the 2 nd truss end portion,

the 2 nd truss end portion side magnet and the 2 nd fixing portion side magnet are attracted to each other to be in the 2 nd holding state.

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