JP7425425B1 - Man conveyor railing device and man conveyor - Google Patents

Abstract

[Problem] To provide a passenger conveyor balustrade device that can continue to apply tension to a handrail belt even when the handrail belt expands and contracts. [Solution] A handrail railing device includes a pinching device that pinches the handrail belt between a driving wheel and a tensioning device that applies force to the handrail belt in order to apply tension to the handrail belt. is fixed, the tension contact part is movable relative to the tension main body and contacts the handrail belt, and the tension contact part moves relative to the tension main body by expanding and contracting, and the tension contact part is movable relative to the tension main body and contacts the handrail belt. and a tension spring that applies a spring force to the handrail belt via the contact portion. [Selection diagram] Figure 3

Description

TECHNICAL FIELD This application relates to a man conveyor balustrade device and a man conveyor.

Conventionally, for example, a passenger conveyor balustrade device includes an endless annular handrail belt, a drive wheel that rotates while contacting the handrail belt in order to transmit drive to the handrail belt, and a pinching device that pinches the handrail belt between the drive wheels. In order to apply tension to the handrail belt, the handrail belt is provided with a tension device that applies force to the handrail belt (for example, Patent Documents 1 and 2).

By the way, in the passenger conveyor balustrade devices according to Patent Documents 1 and 2, the tension device includes a tension contact portion that contacts the handrail belt, and the position of the tension contact portion is fixed. On the other hand, for example, if the handrail belt expands or contracts due to temperature and humidity conditions or aging, etc. (in the passenger conveyor balustrade devices according to Patent Documents 1 and 2, if the handrail belt stretches), There is a possibility that the tension contact portion may separate from the handrail belt and the tension device may not be able to apply tension to the handrail belt.

Unexamined Japanese Patent Publication No. 2016-160086 Japanese Patent Application Publication No. 2017-159974

Therefore, an object of the present invention is to provide a passenger conveyor balustrade device and a passenger conveyor that can continue to apply tension to the handrail belt even when the handrail belt expands and contracts.

The passenger conveyor balustrade device includes an endless annular handrail belt, a rotatable drive wheel that contacts the handrail belt in order to transmit drive to the handrail belt, and a pinching device that pinches the handrail belt between the drive wheels. a tensioning device that applies a force to the handrail belt in order to apply tension to the handrail belt; the tensioning device includes a tensioning body whose position is fixed; and a tensioning device which is movable with respect to the tensioning body. a tension contact portion in contact with the handrail belt; and a tension force that causes the tension contact portion to move relative to the tension main body by expanding and contracting, and applies a spring force to the handrail belt via the tension contact portion. It is equipped with a spring.

The passenger conveyor includes the passenger conveyor railing device described above.

Schematic diagram of a man conveyor according to an embodiment Front view of the pinching device according to the embodiment A front view of the tension device according to the embodiment A perspective view of the tension device according to the embodiment A side view of the tension device according to the embodiment A diagram showing the operation of the tension device according to the embodiment Diagram showing the spring constant of each spring according to the same embodiment FIG. 2 is an explanatory diagram of the installation method of the tension device according to the embodiment, showing a state in which the tension spring is restricted from extending from the second contracted state; FIG. 3 is an explanatory diagram of the method of installing the tension device according to the embodiment, and is a diagram showing a part of the structure. FIG. 2 is an explanatory diagram of the method of installing the tension device according to the same embodiment, showing a state in which the tension device is fixed to a structure. FIG. 3 is an explanatory diagram of the method of installing the tension device according to the embodiment, showing a state in which the restriction on the extension of the tension spring is released; Front view of a pinching device according to another embodiment

In each drawing, the dimensions of components may be shown enlarged or reduced relative to their actual dimensions, for example, for ease of understanding, and the dimensional ratios between drawings may not match. There may be cases where it is not. Note that in each drawing, for example, some of the constituent elements may be omitted for easy understanding.

Although ordinal terms such as first, second, etc. are used to describe a variety of components, these terms are used only to distinguish one component from another; is not particularly limited by this term. Note that the number of components including ordinal numbers is not particularly limited, and may be one, for example. Further, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

Hereinafter, one embodiment of a passenger conveyor and a passenger conveyor railing device will be described with reference to FIGS. 1 to 11. Note that the following embodiments are exemplified to help understand the configuration of the passenger conveyor and the passenger conveyor balustrade device, and do not limit the configuration of the passenger conveyor and the passenger conveyor balustrade device.

As shown in FIG. 1, the person conveyor 1 includes, for example, a structure 2 installed on a frame, a conveyance section 3 that conveys people, and a pair of conveyance sections 3 disposed on both sides of the conveyance section 3 in a first direction D1. A passenger conveyor balustrade device (hereinafter also simply referred to as a "balustrade device"; only one is shown in FIG. 1) 4, a drive section 5 that drives the conveyance section 3 and the balustrade device 4, and controls the entire device. The processing unit 6 may also be provided with a processing unit 6 for processing.

In each figure, the first direction D1 is a first horizontal direction (also referred to as "width direction") D1 which is a direction parallel to the horizontal direction, and the second direction D2 is a direction parallel to the horizontal direction, In addition, a second lateral direction (also referred to as "front-back direction") D2 is orthogonal to the first lateral direction D1, and a third direction D3 is a vertical direction orthogonal to the first lateral direction D1 and the second lateral direction D2. This is the vertical direction D3.

Although the person conveyor 1 according to the present embodiment is an escalator whose tread surface has a step-like shape in order to convey people, it is not limited to such a configuration. For example, the person conveyor 1 may be a moving walkway (moving walkway) whose tread surface is flat in order to transport people.

For example, as in the present embodiment, the conveyance section 3 includes an annular running section 3a that rotates endlessly by being driven by the drive section 5, and is connected to the running section 3a so that it runs together with the running section 3a, and transports people. It may also include a plurality of steps 3b having treads on which the person rides. Although not particularly limited, the running section 3a can be, for example, a roller chain.

Further, for example, a pair of running parts 3a may be provided apart from each other in the first lateral direction D1, and the plurality of steps 3b may be arranged between the pair of running parts 3a, 3a. For example, the step 3b may be rotatably connected to each running portion 3a about the first lateral direction D1.

For example, as in the present embodiment, the drive unit 5 includes a first drive wheel 5a and a driven wheel 5b, around which the running unit 3a is wound such that the step 3b is reversed, and which rotates around the first lateral direction D1. , a drive source 5c that rotates the first drive wheel 5a, and a first transmission section 5d that transmits the drive of the drive source 5c to the first drive wheel 5a. Although not particularly limited, the wheels 5a and 5b may be, for example, sprockets, the drive source 5c may be, for example, a motor, and the first transmission section 5d may be, for example, a belt or a chain. .

For example, as in the present embodiment, the balustrade device 4 includes an endless annular handrail belt 4a that rotates and runs, a balustrade main body 4b that supports the handrail belt 4a, and a cover part 4c that covers the lower part of the balustrade main body 4b. It may also include. Although not particularly limited, the handrail belt 4a includes, for example, a belt body formed of a flexible material (for example, resin such as polyurethane) and a reinforcing material (for example, cord , canvas, etc.).

In addition, the balustrade device 4, for example, as in the present embodiment, drives a rotatable second drive wheel 4d that contacts the handrail belt 4a and a first drive wheel 5a in order to transmit the drive to the handrail belt 4a. It may also include a second transmission section 4e that transmits transmission to the second drive wheel 4d. Although not particularly limited, the second drive wheel 4d may be, for example, a pulley, and the second transmission section 4e may be, for example, a belt or a chain.

As a result, the running portion 3a and the handrail belt 4a are driven by the common drive source 5c. Therefore, the running of the handrail belt 4a is synchronized with the running of step 3b. The running speed of the handrail belt 4a is proportional to the running speed of step 3b (specifically, it is the same as the running speed of step 3b).

For example, as in the present embodiment, the balustrade device 4 includes a pinching device 10 that pinches the handrail belt 4a between the second drive wheel 4d so that the handrail belt 4a pressurizes and contacts the second drive wheel 4d. Good too. Note that the number of pinching devices 10 is not particularly limited, and may be, for example, one as in the present embodiment, or may be, for example, plural.

Furthermore, the balustrade device 4 may include a tension device 20 that applies force to the handrail belt 4a in order to apply tension to the handrail belt 4a. Note that the number of tension devices 20 is not particularly limited, and may be one, as in the present embodiment, or may be, for example, a plurality of tension devices.

As shown in FIG. 2, the clip device 10 includes, for example, a clip main body 11 whose position is fixed, a clip contact portion 12 that is movable with respect to the clip main body 11 and contacts the handrail belt 4a, and a telescopic As a result, the clip abutment portion 12 moves relative to the clip main body portion 11, and a clip spring 13 may be provided that applies a spring force to the handrail belt 4a via the clip contact portion 12.

The pinch spring 13 may be, for example, a spring spring (a helical spring) that can be expanded and contracted in the first expansion and contraction direction D4, as in the present embodiment. Note that the number of pinch springs 13 is not particularly limited, and may be, for example, one as in the present embodiment, or may be, for example, plural.

For example, as in the present embodiment, the scissor main body 11 includes a first fixing part 11a fixed to the first attaching part 2a of the structure 2, and a second fixing part 11a fixed to the second attaching part 2b of the structure 2. The fixing portion 11b may also be provided. Thereby, the position of each fixing part 11a, 11b of the clip main body part 11 is fixed with respect to the structure 2.

The first fixing portion 11a may include, for example, a fixing roller 11c that can come into contact with the handrail belt 4a, as in this embodiment. Note that the position of the axis of the fixed roller 11c is fixed with respect to the structure 2. That is, the position of the fixed roller 11c is fixed with respect to the structure 2.

For example, as in the present embodiment, the clip abutting portion 12 includes a clip contact portion 12 a that contacts the handrail belt 4 a and a clip contact portion 12 a that is movable relative to the clip main body 11 . and a contact connecting part 12b connecting the pincer contact part 12a to the pincer contact part 12a, and a fixed connecting part 12c connected to the second fixed part 11b so as to be movable in the first expansion/contraction direction D4 with respect to the second fixed part 11b. may be provided.

The configuration of the sandwich contact portion 12a is not particularly limited. The pinch contact portion 12a may be, for example, a roller (also referred to as a "moving roller") 12a that rolls on the handrail belt 4a as in the present embodiment, or may be, for example, a sliding surface on which the handrail belt 4a slides. Good too. Further, the number of moving rollers 12a is not particularly limited, and may be, for example, a plurality (five in FIG. 2) as in the present embodiment, or may be one, for example.

Further, for example, as in the present embodiment, the contact connecting portion 12b is configured by rotatably connecting a plurality of links to each other, and the first end of the contact connecting portion 12b is rotatably connected to the first fixed portion 11a. The second end of the contact connection portion 12b may be rotatably connected to the fixed connection portion 12c.

For example, as in the present embodiment, the fixed connection part 12c includes a rod-shaped part 12d that extends in the first expansion/contraction direction D4 and is inserted into a through hole (not shown) of the second fixed part 11b, and a rod-shaped part 12d. It may also include a holding part 12e that is fixed to and holds the pinch spring 13 between it and the second fixing part 11b. As a result, the pincer spring 13 expands and contracts as the rod-shaped portion 12d moves in the first expansion and contraction direction D4.

For example, as in the present embodiment, the pinch spring 13 may be held in an elastically deformed state (specifically, in a contracted state) by the second fixing part 11b and the holding part 12e. As a result, a spring force due to expansion and contraction (specifically, contraction) of the pinch spring 13 is applied to the handrail belt 4 a via the pinch contact portion 12 a of the pinch contact portion 12 .

The pinch contact portion 12 is in contact with the outer peripheral surface of the handrail belt 4a, and the second drive wheel 4d is in contact with the inner peripheral surface of the handrail belt 4a. Therefore, the handrail belt 4a is sandwiched between the pinch contact portion 12 and the second drive wheel 4d, so that the handrail belt 4a contacts the second drive wheel 4d under pressure. Thereby, for example, it is possible to suppress the handrail belt 4a from slipping with respect to the second drive wheel 4d.

As a result, the drive of the second drive wheel 4d can be reliably transmitted to the handrail belt 4a. In the present embodiment, the direction of the force that the pinch contact portion 12 applies to the handrail belt 4a is a direction different from (crossing) the first expansion/contraction direction D4 of the pinch spring 13.

The configuration of the pinching device 10 is not particularly limited. For example, the pinching device 10 may be configured to sandwich the handrail belt 4a with the second drive wheel 4d. Further, for example, it is preferable that the pinch device 10 has a configuration in which a spring force due to expansion and contraction of the pinch spring 13 is applied to the handrail belt 4a, so that the handrail belt 4a pressurizes and contacts the second drive wheel 4d.

As shown in FIGS. 3 to 5, the tension device 20 includes, for example, a tension main body 21 whose position is fixed, and a tension contact part 22 which is movable with respect to the tension main body 21 and contacts the handrail belt 4a. and a tension spring 23 which moves the tension contact part 22 relative to the tension main body part 21 by expanding and contracting and applies force to the handrail belt 4a via the tension contact part 22.

Further, the tension device 20 includes, for example, a guide device 24 that guides the tension contact portion 22, a restriction portion 25 that restricts the tension spring 23 from contracting from the first contracted state, and a tension spring 23, as in the present embodiment. 23 may be provided with a switching unit 26 capable of switching between a state in which expansion from the second contracted state is restricted (restricted state) and a state in which the restriction is released (restricted state).

For example, as in the present embodiment, the tension body part 21 includes a plate-shaped main body plate part 21a fixed to the third attachment part 2c of the structure 2 (see FIGS. 9 and 10), and a main body plate part 21a. The main body bracket 21b may be fixed to the main body bracket 21a. As a result, the positions of the main body plate portion 21a and the main body bracket 21b of the tension main body portion 21 are fixed with respect to the structure 2.

For example, as in the present embodiment, the tension contact portion 22 includes a plate-shaped contact plate portion 22a disposed facing the main body plate portion 21a, and a contact portion fixed to the contact plate portion 22a. It may include a contact bracket 22b and a tension contact portion 22c fixed to the contact plate portion 22a and in contact with the handrail belt 4a.

The configuration of the tension contact portion 22c is not particularly limited. The tension contact portion 22c may be, for example, a sliding surface on which the handrail belt 4a slides, as in the present embodiment, or may be, for example, a roller that rolls on the handrail belt 4a.

For example, as in the present embodiment, the tension spring 23 includes a cylinder 23a and a rod 23b that is movable in the second expansion and contraction direction D5 with respect to the cylinder 23a, so that the tension spring 23 has a gas that can be expanded and contracted in the second expansion and contraction direction D5. It can also be used as a spring. Note that the number of tension springs 23 is not particularly limited, and may be, for example, two as in this embodiment, or may be one, three or more.

For example, as in the present embodiment, the end of the cylinder 23a is rotatably connected to the main body plate-shaped part 21a of the tension main body part 21, and the end of the rod 23b is connected to the tension contact part 22. It may be configured such that it is rotatably connected to the plate-shaped portion 22a. As a result, the tension spring 23 expands and contracts in the second expansion and contraction direction D5, so that the tension contact portion 22 can move in the second expansion and contraction direction D5 with respect to the tension body 21.

Since the tension spring 23 applies a force to the tension contact portion 22 in the second expansion/contraction direction D5, the spring force due to expansion/contraction (specifically, contraction) of the tension spring 23 is equal to the tension of the tension contact portion 22. It is applied to the handrail belt 4a via the contact portion 22c. Thus, in this embodiment, the direction of the force that the tension contact portion 22 applies to the handrail belt 4a is the same direction (parallel direction) to the second expansion/contraction direction D5 of the tension spring 23.

Further, although not particularly limited, in the tension spring 23 which is a gas spring, for example, gas (for example, pressurized nitrogen gas) or oil for reducing friction is sealed inside the cylinder 23a. Good too. Note that, although not particularly limited, by setting the pressure of the gas, the amount of oil, etc. of the gas spring, it is also possible to reduce the size, for example, compared to a spring spring that generates the same force.

Furthermore, the tension spring 23, which is a gas spring, generally has a low mechanical strength in a direction intersecting the second expansion/contraction direction D5. Therefore, the guide device 24, for example, as in the present embodiment, includes a linear guide (linear bearing ).

For example, as in the present embodiment, the rail 24a is fixed to the main body plate part 21a of the tension main body part 21, and the carriage 24b is fixed to the contact plate part 22a of the tension contact part 22. A fixed configuration may also be used. As a result, the tension contact portion 22 is guided in the second expansion/contraction direction D5 by the guide device 24, which is a linear guide, so that the tension contact portion 22 is reliably moved in the second expansion/contraction direction D5 with respect to the tension main body portion 21. Move to.

Therefore, when the tension contact portion 22 moves relative to the tension main body portion 21, it is possible to suppress the force acting on the tension spring 23, which is a gas spring, in the direction intersecting the second expansion/contraction direction D5. can. As a result, for example, damage to the tension spring 23, which is a gas spring, can be suppressed.

Note that the guide device 24 is not particularly limited, and may be, for example, a linear guide (sliding linear bearing) in which the carriage 24b slides on the rail 24a. It may also be a linear guide (ball circulation linear bearing) equipped with moving rolling elements (balls, rollers).

Further, the tension spring 23, which is a gas spring, generally has low mechanical strength against excessive contraction. Therefore, in order to restrict the tension spring 23 from contracting from the first contracted state, the regulating part 25 includes a first abutting part 25a that can abut the tension abutting part 22, for example, as in the present embodiment. You may be prepared. Note that the configuration of the regulating section 25 is not particularly limited.

For example, as in the present embodiment, the regulating portion 25 may include a first male screw member 25b that is screwed into the female screw portion 21c of the main body bracket 21b. Thereby, the restricting portion 25 extends in the second expansion/contraction direction D5 from the main body bracket 21b toward the abutting bracket 22b, and the first abutting portion 25a is disposed at the tip of the restricting portion 25.

Therefore, when the tension spring 23 is in the first contracted state, the first abutting portion 25a abuts and stops the abutment bracket 22b, so that the tension spring 23 is prevented from contracting from the first contracted state. As a result, it is possible to prevent the tension spring 23 from shrinking too much, so it is possible to prevent the tension spring 23, which is a gas spring, from being damaged, for example.

Further, in the present embodiment, the regulating portion 25 includes the first male threaded member 25b that is screwed into the female threaded portion 21c of the main body bracket 21b, and the first stop portion 25a Since it is located at the tip of the male screw member 25b, the position of the first abutment part 25a can be displaced with respect to the tension main body part 21. Therefore, by locating the first abutment part 25a at a desired position, for example, the amount of contraction of the tension spring 23 in the first contraction state, that is, the contraction of the tension spring 23 when restricting further contraction of the restriction part 25. The amount can be varied to the desired amount of shrinkage.

The switching part 26 may be provided with the 2nd abutment part 26a which can abut and stop the tension|tensile force contact part 22, for example like this embodiment. The second abutment portion 26a has two abutment positions (positions indicated by two-dot chain lines in FIGS. 3 to 5) where the tension abutment portion 22 is abutted and abutted when the tension spring 23 is in the second contracted state, and a tension abutment position where the tension abutment portion 22 is abutted when the tension spring 23 is in the second contracted state. It may be possible to move to a retracted position away from the portion 22 (the position indicated by the solid line in FIGS. 3 to 5). Note that the configuration of the switching unit 26 is not particularly limited.

For example, as in the present embodiment, the switching section 26 includes a second male threaded material 26b fixed to the main body bracket 21b, and the second male threaded material 26b is inserted into the through hole 22d of the abutting bracket 22b. The second abutting portion 26a may be configured to include a female screw member 26a that is screwed into the second male screw member 26b.

Thereby, by changing the position of the female screw member 26a with respect to the second male screw member 26b, the second stop portion 26a can be displaced between the stop position and the retracted position. Therefore, when the second abutting part 26a is located at the abutting position, the switching part 26 is brought into the restricted state, and when the second abutting part 26a is located at the retracted position, the switching part 26 is brought into the deregulating state. becomes.

Further, in this embodiment, since the second abutment part 26a is constituted by the female threaded material 26a that is screwed into the second male threaded material 26b, the position of the second abutment part 26a is different from the tension body part 21. It can be displaced against. Therefore, by locating the second abutment part 26a at a desired position, for example, the amount of contraction of the tension spring 23 in the second contracted state, that is, the amount of contraction of the tension spring 23 when the switching part 26 is restricted from being extended from the contracted state is controlled. The amount of contraction can be changed to a desired amount of contraction.

Note that the configuration of the tension device 20 is not particularly limited. For example, the tensioning device 20 may be configured such that tension is applied to the handrail belt 4a by applying a spring force due to expansion and contraction of the tension spring 23 to the handrail belt 4a.

Next, the operation of the balustrade device 4 according to this embodiment will be explained with reference to FIGS. 6 and 7. Note that the following explanation is provided as an example to help understand the operation of the balustrade device 4, and does not limit the operation of the balustrade device 4.

When the passenger conveyor 1 is in operation, the switching unit 26 is in the deregulated state. Although not particularly limited, for example, the retracted position of the second abutting portion 26a may be set to a position where the tension abutting portion 22 is abutted when the tension spring 23 is fully extended. For example, the handrail belt 4a may expand or contract due to temperature and humidity conditions, aging, or the like.

For example, when the handrail belt 4a is stretched, the tension spring 23 is stretched and the tension contact portion 22 moves relative to the tension body 21, as shown in FIG. , is in contact with the handrail belt 4a. Thereby, since the tension spring 23 applies a spring force to the handrail belt 4a via the tension contact portion 22, even when the handrail belt 4a is stretched, tension can be continued to be applied to the handrail belt 4a.

Although not shown, for example, when the handrail belt 4a contracts, the tension spring 23 contracts and the tension contact portion 22 moves relative to the tension main body 21. Maintain contact with belt 4a. Thereby, since the tension spring 23 applies a spring force to the handrail belt 4a via the tension contact portion 22, even when the handrail belt 4a is contracted, tension can be continued to be applied to the handrail belt 4a.

By the way, when the handrail belt 4a expands and contracts, the distance that the tension contact section 22 moves relative to the tension body section 21 is greater than the distance that the pinch contact section 12 moves relative to the pinch body section 11. . Specifically, when the handrail belt 4a expands and contracts, the tension contact portion 22 moves relative to the tension body portion 21, while the pinch contact portion 12 hardly moves relative to the pinch body portion 11. .

Therefore, as shown in FIG. 7, for example, a configuration in which the spring constant of the tension spring 23 is smaller than the spring constant of the pinch spring 13 is preferable. This makes it possible to reduce the change in the amount of tension applied to the handrail belt 4a before and after the handrail belt 4a expands and contracts.

Specifically, before and after the contraction distance of the tension spring 23 changes (S2→S1:ΔS), it is possible to reduce the change in the magnitude of the tension applied to the handrail belt 4a (F2→F1:ΔF). . Therefore, even if the handrail belt 4a expands or contracts, for example, an appropriate amount of tension can be continued to be applied to the handrail belt 4a.

In FIG. 7, a graph K1 is a graph showing the generated spring force with respect to the contraction distance of the pinch spring 13, and a graph K2 is a graph showing the generated spring force with respect to the contraction distance of the tension spring 23. In FIG. 7, the state in FIG. 3 is shown by an expansion/contraction distance S2 and a spring force F2, and the state in FIG. 6 is shown by an expansion/contraction distance S1 and a spring force F1.

Although not particularly limited, for example, the ratio of the spring constant of the tension spring 23 to the spring constant of the pinch spring 13 may be, for example, 20% or less, and is preferably, for example, 10% or less, Further, for example, it is more preferably 5% or less. Thereby, for example, it is possible to further reduce the change in the magnitude of the tension applied to the handrail belt 4a before and after the handrail belt 4a expands and contracts.

Next, a method for installing the tension device 20 (ie, a method for manufacturing the balustrade device 4) according to the present embodiment will be described with reference to FIGS. 8 to 11. The following explanation is provided as an example to help understand the method of installing the tension device 20 (method of manufacturing the balustrade device 4), etc. It is not limited.

For example, as shown in FIG. 8, when installing the tension device 20, the switching section 26 is in the restricted state. Although not particularly limited, for example, the abutment position of the second abutment part 26a is set so that the spring force generated when the tension spring 23 is in the second contracted state becomes the tension desired to be applied to the handrail belt 4a. You can leave it there.

In addition, as shown in FIG. 9, the structure 2 may be provided with the 3rd attachment part 2c fixed to the frame material 2d, for example. The third attachment part 2c may include, for example, an adjustment part 2e that can adjust the position of the tension main body part 21 of the tension device 20, as in the present embodiment. The adjustment portion 2e may be, for example, a long hole into which a fastening means (for example, a bolt and a nut) for fixing the tension main body portion 21 and the third attachment portion 2c is inserted, as in the present embodiment.

For example, as shown in FIG. 10, the position of the tension main body part 21 is adjusted so that the handrail belt 4a comes into close contact with the tension contact part 22, and the tension main body part 21 is fixed to the third attachment part 2c. be done. In addition, in FIG. 10, the first abutting part 25a of the regulating part 25 is separated from the tension abutting part 22, but for example, the first abutting part 25a of the regulating part 25 and the second abutting part 25 of the switching part 26 are separated from each other. The stop portion 26a may sandwich the contact bracket 22b of the tension contact portion 22.

Thereafter, for example, as shown in FIG. 11, the second abutment part 26a is located at the retracted position, and the switching part 26 is brought into the deregulated state. As a result, the tension spring 23 tends to expand, so that the spring force of the tension spring 23 can be applied to the handrail belt 4a via the tension contact portion 22. In FIG. 11, since the tension spring 23 is maintained in the second contracted state, a desired spring force can be applied to the handrail belt 4a. Therefore, the tension applied to the handrail belt 4a can be set to a desired tension.

[1]
As described above, the passenger conveyor balustrade device 4, as in the present embodiment, includes an endless annular handrail belt 4a and a rotatable drive wheel (main) in contact with the handrail belt 4a in order to transmit drive to the handrail belt 4a. In the embodiment, a second drive wheel) 4d and a pinching device 10 that pinches the handrail belt 4a between the drive wheels 4d and a force are applied to the handrail belt 4a in order to apply tension to the handrail belt 4a. A tensioning device 20, the tensioning device 20 includes a tensioning main body portion 21 whose position is fixed, a tensioning contact portion 22 which is movable with respect to the tensioning main body portion 21 and contacts the handrail belt 4a. , a tension spring 23 which moves the tension contact part 22 relative to the tension main body part 21 by expanding and contracting and applies a spring force to the handrail belt 4a via the tension contact part 22. configuration is preferred.

According to such a configuration, when the handrail belt 4a expands and contracts, the tension spring 23 expands and contracts and the tension contact portion 22 moves relative to the tension main body portion 21, so that the tension contact portion 22 It continues to be in contact with the handrail belt 4a. Since the tension spring 23 applies a spring force to the handrail belt 4a via the tension contact portion 22, even when the handrail belt 4a expands or contracts, tension can be continued to be applied to the handrail belt 4a.

[2]
Further, in the passenger conveyor railing device 4 of [1] above, as in the present embodiment, the clip device 10 has a clip main body 11 whose position is fixed, and a clip main body 11 that is movable with respect to the clip main body 11. There is a pinch abutting part 12 in contact with the handrail belt 4a, and the pinch abutting part 12 moves relative to the pinch main body part 11 by expanding and contracting, and the pinch abutting part 12 contacts the handrail belt 4a via the pinch abutting part 12. It is preferable that the tension spring 23 has a spring constant smaller than that of the pinch spring 13.

According to such a configuration, when the handrail belt 4a expands and contracts, the distance that the tension contact portion 22 moves with respect to the tension body portion 21 is the distance that the pinch contact portion 12 moves with respect to the pinch body portion 11. , whereas the spring constant of the tension spring 23 is smaller than the spring constant of the pinch spring 13. This makes it possible to reduce the change in the amount of tension applied to the handrail belt 4a before and after the handrail belt 4a expands and contracts.

[3]
Furthermore, in the passenger conveyor balustrade device 4 of [1] or [2], as in the present embodiment, the tension spring 23 is connected to the cylinder 23a and in the direction of expansion and contraction with respect to the cylinder 23a (in the present embodiment, , a rod 23b movable in the second expansion/contraction direction) D5, the gas spring is expandable/contractable in the expansion/contraction direction D5, and one of the cylinder 23a and the rod 23b (in this embodiment, It is preferable that the cylinder) 23a is connected to the tension main body part 21, and the other (rod in this embodiment) 23b is connected to the tension contact part 22.

According to this configuration, since the tension spring 23 is a gas spring that can be expanded and contracted in the expansion and contraction direction (in the present embodiment, the second expansion and contraction direction) D5, the tension contact portion 22 is It is movable in the expansion/contraction direction D5. The tension spring 23 applies a spring force to the tension contact portion 22 in the expansion/contraction direction D5.

[4]
Further, in the passenger conveyor balustrade device 4 of [3] above, as in the present embodiment, the tension device 20 is configured to contact the tension spring 23 with the tension spring 23 in order to prevent the tension spring 23 from contracting from the first contracted state. It is preferable to further include a regulating portion 25 against which the portion 22 can be applied.

According to such a configuration, the tension spring 23 is prevented from contracting from the first contracted state by the regulating portion 25 stopping the tension contact portion 22 against the tension contact portion 22 . Thereby, it is possible to prevent the tension spring 23 from contracting too much.

[5]
Further, in the passenger conveyor railing device 4 of [3] or [4], as in the present embodiment, the tension device 20 is configured to control the tension spring 23 from being extended from the second contracted state to the state where it is restricted from extending. It is preferable to further include a switching section 26 capable of switching to a state where the restriction is released.

According to such a configuration, the tension spring 23 is restricted from expanding by the switching portion 26, so that the tension main body portion 21 can be fixed in the second contracted state of the tension spring 23. Then, by releasing the restriction by the switching part 26, the tension spring 23 tends to expand, so that the spring force of the tension spring 23 can be applied to the handrail belt 4a via the tension contact part 22.

[6]
Further, in the passenger conveyor balustrade device 4 according to any one of [3] to [5] above, as in the present embodiment, the tension device 20 moves the tension contact portion 22 in the expansion/contraction direction (in the present embodiment). , the guide device 24 includes a guide device 24 that guides in the second expansion/contraction direction D5), and the guide device 24 includes a rail 24a extending in the expansion/contraction direction D5, and a carriage 24b that moves in the expansion/contraction direction D5 with respect to the rail 24a. Of the rail 24a and the carriage 24b, one (rail in this embodiment) 24a is fixed to the tension main body 21, and the other (in this embodiment, It is preferable that the carriage (carriage) 24b is fixed to the tension abutting portion 22.

According to such a configuration, the tension contact portion 22 is guided in the expansion/contraction direction (in this embodiment, the second expansion/contraction direction) D5 by the guide device 24, which is a linear guide. Thereby, when the tension contact portion 22 moves with respect to the tension main body portion 21, it is possible to suppress a force from acting on the tension spring 23, which is a gas spring, in a direction intersecting the expansion/contraction direction D5.

[7]
Further, it is preferable that the passenger conveyor 1 is provided with one of the passenger conveyor railing devices 4 described in [1] to [6] above, as in the present embodiment.

According to such a configuration, even when the handrail belt 4a expands and contracts, tension can be continued to be applied to the handrail belt 4a.

Note that the passenger conveyor 1 and the passenger conveyor railing device 4 are not limited to the configurations of the embodiments described above, nor are they limited to the effects described above. Furthermore, it goes without saying that the passenger conveyor 1 and the passenger conveyor railing device 4 may be modified in various ways without departing from the gist of the present invention. For example, it goes without saying that one or more of the configurations, methods, etc. according to the various modification examples described below may be arbitrarily selected and adopted as the configurations, methods, etc. according to the above-described embodiments.

(A) The passenger conveyor railing device 4 according to the above embodiment has a configuration in which the number of the second drive wheels 4d is one. However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, as shown in FIG. 12, there may be a plurality of second drive wheels 4d.

The configuration of the passenger conveyor railing device 4 according to FIG. 12 will be described below. Note that the configuration of the passenger conveyor railing device 4 is not limited to the following.

As shown in FIG. 12, the balustrade device 4 includes a handrail belt 4a, a plurality of rotatable second drive wheels 4d in contact with the handrail belt 4a, and a second drive wheel 4d in order to transmit drive to the handrail belt 4a. and a pinching device 10 for pinching the handrail belt 4a.

The clip device 10 includes a clip main body 11 whose position is fixed, a clip contact portion 12 that is movable with respect to the clip main body 11 and contacts the handrail belt 4a, and a clip contact portion 12 that expands and contracts. It includes a pinch spring 13 that moves relative to the pinch main body 11 and applies a spring force to the handrail belt 4a via the pinch contact part 12.

The second transmission part 4e includes a rotatable third drive wheel 4f and a first transmission member 4g (for example, a belt, a chain) that transmits the drive of the first drive wheel 5a (see FIG. 1) to the third drive wheel 4f. and a second transmission member 4h (eg, belt, chain) that transmits the drive of the third drive wheel 4f to the second drive wheel 4d. Thereby, the second transmission section 4e transmits the drive of the first drive wheel 5a to the second drive wheel 4d.

The position of the scissor main body 11 may be fixed by being fixed to the structure 2, for example. The plurality of second drive wheels 4d are rotatably connected to the clip main body 11.

The pincer contact part 12 includes a pincer contact part (for example, a roller) 12a that contacts the handrail belt 4a, and a pincer contact part 11 and a pincer contact part such that the pincer contact part 12a is movable with respect to the pincer body part 11. 12a. The contact connection portion 12b is rotatably connected to the clip main body portion 11.

The clip spring 13 is held in an elastically deformed state (specifically, in a contracted state) between the clip main body portion 11 and the clip contact portion 12 (specifically, the contact connection portion 12b). . As a result, a spring force due to expansion and contraction (specifically, contraction) of the pinch spring 13 is applied to the handrail belt 4 a via the pinch contact portion 12 a of the pinch contact portion 12 . Note that, although not particularly limited, the pinch spring 13 may be a spring spring (a helical spring) that can be expanded and contracted in the third expansion and contraction direction D6, as shown in FIG. 12, for example.

The pinch contact portion 12 is in contact with one surface (for example, the outer peripheral surface) of the handrail belt 4a, and the second drive wheel 4d is in contact with the other surface (for example, the inner peripheral surface) of the handrail belt 4a. Therefore, the handrail belt 4a is sandwiched between the pinch contact portion 12 and the second drive wheel 4d, so that the handrail belt 4a contacts the second drive wheel 4d under pressure. Thereby, for example, it is possible to suppress the handrail belt 4a from slipping with respect to the second drive wheel 4d, so that the drive of the second drive wheel 4d can be reliably transmitted to the handrail belt 4a.

(B) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the pinch spring 13 is a spring spring, and the tension spring 23 is a gas spring. However, the passenger conveyor railing device 4 is not limited to such a configuration.

For example, the pinch spring 13 may be a gas spring, or the pinch spring 13 may include both a spring spring and a gas spring. Further, the tension spring 23 may be, for example, a spring spring, or may be provided with both a spring spring and a gas spring.

(C) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the direction of the force that the pinch contact portion 12 applies to the handrail belt 4a is different from the first expansion/contraction direction D4 of the pinch spring 13 (intersecting direction). direction). However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, a configuration may be adopted in which the direction of the force applied by the pinch contact portion 12 to the handrail belt 4a is the same direction (parallel direction) as the first expansion/contraction direction D4 of the pinch spring 13.

(D) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the second drive wheel 4d is in contact with the inner circumferential surface of the handrail belt 4a, and the pinch contact portion 12 is in contact with the outer circumferential surface of the handrail belt 4a. The configuration is as follows. However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, the second drive wheel 4d may be in contact with the outer peripheral surface of the handrail belt 4a, and the pinch contact portion 12 may be in contact with the inner peripheral surface of the handrail belt 4a.

(E) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the direction of the force applied by the tension contact portion 22 to the handrail belt 4a is the same direction (parallel) as the second expansion/contraction direction D5 of the tension spring 23. direction). However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, the direction of the force applied by the tension contact portion 22 to the handrail belt 4a may be configured to be a direction different from (a direction intersecting with) the second expansion/contraction direction D5 of the tension spring 23.

(F) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the tension contact portion 22 is configured to be in contact with the inner circumferential surface of the handrail belt 4a. However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, the tension contact portion 22 may be configured to contact the outer peripheral surface of the handrail belt 4a.

(G) In the passenger conveyor railing device 4 according to the above embodiment, the clip device 10 has a clip main body 11 whose position is fixed, and is movable with respect to the clip main body 11, and is attached to the handrail belt 4a. This configuration includes a sandwich abutting portion 12 that comes into contact with the other end. However, the passenger conveyor railing device 4 is not limited to such a configuration.

For example, by fixing the pinch abutting part 12 of the pinch device 10 to the structure 2, the position of the pinch abutting part 12 is fixed, and the pinch abutting part 12 contacts the handrail belt 4a. It may be a configuration. That is, the pinching device 10 may be configured without the pinching spring 13.

(H) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the spring constant of the tension spring 23 is smaller than the spring constant of the pinch spring 13. However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, the spring constant of the tension spring 23 may be larger than the spring constant of the pinch spring 13. Further, for example, the spring constant of the tension spring 23 may be the same as the spring constant of the pinch spring 13.

(I) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the cylinder 23a is connected to the tension main body part 21, and the rod 23b is connected to the tension contact part 22. However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, the cylinder 23a may be connected to the tension contact portion 22, and the rod 23b may be connected to the tension body portion 21.

(J) Furthermore, in the passenger conveyor balustrade device 4 according to the above embodiment, the rail 24a is fixed to the tension main body part 21, and the carriage 24b is fixed to the tension contact part 22. It is. However, the passenger conveyor railing device 4 is not limited to such a configuration. For example, the rail 24a may be fixed to the tension contact portion 22, and the carriage 24b may be fixed to the tension main body portion 21.

(K) For example, the order of execution of each process, such as the operation, procedure, step, and stage in the method and apparatus shown in the claims, specification, and drawings, is such that the result of the previous process is They can be implemented in any order as long as they are not used in For example, even if "first", "next", etc. are used in the explanation for convenience, this does not mean that execution in this order is essential.

DESCRIPTION OF SYMBOLS 1...Man conveyor, 2...Structure, 2a...First attachment part, 2b...Second attachment part, 2c...Third attachment part, 2d...Frame material, 2e...Adjustment part, 3...Transportation part, 3a...Traveling part , 3b...step, 4...man conveyor balustrade device, 4a...handrail belt, 4b...balustrade body part, 4c...cover part, 4d...second drive wheel, 4e...second transmission part, 4f...third drive wheel, 4g ...First transmission member, 4h...Second transmission member, 5...Drive section, 5a...First drive wheel, 5b...Driver wheel, 5c...Drive source, 5d...First transmission section, 6...Processing section, 10...Pinch Device, 11...Pinch body part, 11a...First fixed part, 11b...Second fixed part, 11c...Fixed roller, 12...Pinch contact part, 12a...Pinch contact part (moving roller), 12b...Contact connection part, 12c... Fixed connection part, 12d... Rod-shaped part, 12e... Holding part, 13... Pincer spring, 20... Tension device, 21... Tension body part, 21a... Main body plate-shaped part, 21b... Main body bracket, 21c... Female screw part, 22... Tension contact part, 22a... Contact plate-shaped part, 22b... Contact bracket, 22c... Tension contact part, 22d... Through hole, 23... Tension spring, 23a... Cylinder, 23b... Rod, 24... Guide device, 24a...Rail, 24b...Carriage, 25...Restriction part, 25a...First stopper part, 25b...First male threaded material, 26...Switching part, 26a...Second stopper part (female threaded material), 26b...First stopper part 2 male screw material, D1...first lateral direction, D2...second lateral direction, D3...vertical direction, D4...first elastic direction, D5...second elastic direction, D6...third elastic direction

Claims (7)

An endless circular handrail belt,
a rotatable drive wheel in contact with the handrail belt for transmitting drive to the handrail belt;
a pinching device that pinches the handrail belt with the drive wheel;
a tensioning device that applies force to the handrail belt in order to apply tension to the handrail belt,
The tension device includes:
a tension body whose position is fixed;
a tension contact portion movable relative to the tension main body and in contact with the handrail belt;
As the handrail belt expands and contracts, the tension contact portion moves relative to the tension main body, and a tension force is applied to the handrail belt running through the tension contact portion. comprising a spring ;
The tension spring is connected to the tension main body so that the connection position with respect to the tension main body remains unchanged, and is connected to the tension abutment part such that the connection position with respect to the tension contact part remains unchanged. Connected to man conveyor railing device. An endless circular handrail belt,
a rotatable drive wheel in contact with the handrail belt for transmitting drive to the handrail belt;
a pinching device that pinches the handrail belt with the drive wheel;
a tensioning device that applies force to the handrail belt in order to apply tension to the handrail belt,
The tension device includes:
a tension body whose position is fixed;
a tension contact portion movable relative to the tension main body and in contact with the handrail belt;
As the handrail belt expands and contracts, the tension contact portion moves relative to the tension main body, and a tension force is applied to the handrail belt running through the tension contact portion. comprising a spring;
The pinching device includes:
a scissors main body whose position is fixed;
a clip abutment part that is movable relative to the clip main body and contacts the handrail belt;
a pinch spring that moves the pinch contact portion relative to the pinch main body by expanding and contracting, and applies a spring force to the handrail belt via the pinch contact portion;
In the passenger conveyor balustrade device, a spring constant of the tension spring is smaller than a spring constant of the pinch spring. The tension spring is a gas spring that can be expanded and contracted in the expansion and contraction direction by including a cylinder and a rod that is movable in the expansion and contraction direction with respect to the cylinder,
The passenger conveyor balustrade device according to claim 1 or 2, wherein one of the cylinder and the rod is connected to the tension body and the other is connected to the tension abutment. 4. The passenger conveyor balustrade device according to claim 3, wherein the tension device further includes a regulating portion that can abut the tension contact portion to prevent the tension spring from contracting from the first contracted state. 4. The passenger conveyor balustrade device according to claim 3, wherein the tension device further includes a switching section capable of switching between a state in which the tension spring is restricted from expanding from the second contracted state and a state in which the restriction is released. The tension device includes a guide device that guides the tension contact portion in the expansion and contraction direction,
The guide device is a linear guide including a rail extending in the expansion and contraction direction, and a carriage that moves in the expansion and contraction direction with respect to the rail,
The passenger conveyor balustrade device according to claim 3, wherein one of the rail and the carriage is fixed to the tension body and the other is fixed to the tension abutment. A passenger conveyor comprising the passenger conveyor railing device according to claim 1 or 2.