JP2001354382A - Man conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a man conveyer such as an escalator capable of reducing load in installation by shortening a depth directional size of a truss. SOLUTION: In this man conveyer, a step row 10 including many steps 11 interconnected endlessly via a chain 12 circulates and moves in a going passage A on the upper side and a coming passage B on the lower side in the truss 2. Each step 1 of the step row 10 has a frame 13, and the frame 13 has a tread 14 on its upper surface, a rising plate 15 on its back surface, front wheels 17 on both sides of its front part, and rear wheels 19 on both sides of its rear part. The rear wheels 19 are inside the rising plate 15, and the lower end surfaces of the rear wheels 19 are provided at substantially same level as the lower end edge of the rising plate 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a man conveyor for transporting passengers by circulating and moving a series of steps in which a number of steps are connected endlessly through a chain.

[0002]

2. Description of the Related Art In recent years, with the arrival of an aging society, installation of a man conveyor in various facilities has been studied.

In particular, in public transportation facilities such as station buildings,
Since the use of unspecified people is premised, installation of man conveyors is progressing at a rapid pace. In many station buildings, escalators are being installed mainly because it is necessary to transport people in a situation where vehicles and traffic lines intersect due to the functional relationship of the building structure.

In an escalator as a man conveyor, a truss is installed between a lower floor and an upper floor of a building, and a step sequence formed by connecting a number of steps endlessly is incorporated in the truss. Is circulated by a driving device to transport the passengers who have entered the steps.

FIG. 6 is a side view of a conventional escalator. The escalator 1 includes a truss 2, and support fittings 3 a and 3 b are provided at both ends in the longitudinal direction of the truss 2, and the truss 2 is connected between the upper floor and the lower floor of the building 4 via the support fittings 3 a and 3 b. It is suspended at an angle.

In general, when newly installing the escalator 1 in an existing station building or the like, the stairs 5 are already installed as a traffic line of a person, and a space for installing the escalator 1 in a place different from the stairs 5 is taken. If it is not possible, or if it is possible to take up space, but it is an inappropriate place for people to move, dismantle or modify a part of the existing stairs 5 It is common to add them.

In many cases, a roof 6 is provided above the existing stairs 5. When the escalator 1 is installed on such a stair 5, a predetermined clearance is provided between the roof 6 and the escalator 1. It is necessary to secure K. For this reason, a part of the existing stairs 5 and, for example, a part of the platform 7 on the lower floor are dismantled to form an opening, and a part of the truss 2 is dropped into the opening. It is customary to install it. The hatched portion shown in FIG. 6 is the disassembly removal portion.

[0008] Each step of the endless step train incorporated in the truss 2 circulates between an upper outward path and a lower return path in the truss 2, and the passengers move during the outward section. And transport it. Each step of moving on the outward path, in the end portion on one end side in the longitudinal direction of the truss 2, changes the direction while reversing from the outward path and shifts to the return path,
Further, each step of moving on the return path, in the end portion on the other end side in the longitudinal direction of the truss 2, reverses the direction from the return path and shifts to the forward path.

FIG. 7 shows step 11 of step sequence 10.
Shows the structure of the part that shifts from the outbound path A to the inbound path B. Each step 11 of the step sequence 10 includes a frame 13
And a tread plate 14 attached to the upper surface of the frame 13
And the riser plate 15 attached to the back of the frame 13
And a front wheel 17 rotatably provided on both sides of a front portion of the frame 13 via a shaft 16 and a rear wheel 19 rotatably provided on both sides of a rear portion of the frame 13 via a shaft 18.

In each step 11, the shafts 16 of the front wheels 17 are connected to each other by an endless chain 12,
The connection forms a step train 10, and the chain 12 of the step train 10 is wound around a rotating wheel 21 provided in the end of the truss 2. The rotating wheel 21 is driven and rotated by a driving device (not shown), and this rotation causes each step 11 to circulate between the forward path A and the backward path B.

A front wheel guide rail 23 for supporting and guiding the front wheel 17 of each step 11 is provided on the forward path A and the backward path B.
Also, a rear wheel guide rail 24 for supporting and guiding the rear wheel 19 is provided.

A U-shape is formed between the end of the rear wheel guide rail 24 on the outward path A and the end of the rear wheel guide rail 24 on the return path B, inside the end face of the rotating wheel 21. A direction changing guide rail 25 is provided.

Step 11 for moving on the outbound path A is truss 2
, The front wheel 17 is guided along the outer periphery of the rotating wheel 21, changes its direction of movement while inverting, and shifts to the return path B. At this time, step 11
The rear wheel 19 moves along the direction changing guide rail 25. FIG. 8 shows a state where step 11 is reversed to change its direction.

The step 11 is reversed in the same structure in the other end of the truss 2 to change its direction.

FIG. 9 shows a state in which the step 11 moves on the forward path A and the backward path B. On the outward path A, skirt guard panels 26 are located on both sides of each step 11.
Is provided. The skirt guard panel 26 has a level position in which the inner surface thereof is in close proximity to the side surface of each step 11 moving on the outward path A, and whose lower edge does not interfere with the shafts 16 and 18 supporting the front wheel 17 and the rear wheel 19. It is provided so that it becomes.

[0016]

By the way, in the conventional step 11, the rear wheel 19 projects below the kick-up plate 15 and outside of the kick-up plate 15 with reference to when the tread plate 14 is horizontal. Position.

As shown in FIG. 8, the magnitude of the curvature when step 11 is reversed to change the direction is determined by step 11
Although it determined by the magnitude of the distance L ₁ connecting the front edge of wheel 19 and step board 14 after, in the conventional under the rear wheel 19 is riser 15, and provided at a position projecting to the outside of the riser 15 because they are, the distance L ₁ is greater, thus being larger magnitude of curvature.

The dimension _{H 1} in the depth direction of the end portion of the truss 2,
Although the step 11 depends on the magnitude of the curvature when the direction is changed, conventionally, the magnitude of the curvature is large,
Thus even large inevitably dimension H ₁ in the depth direction of the end portion of the truss 2.

In the conventional step 11, since the rear wheel 16 is located below the riser plate 15, FIG.
Total height h ₁ of the step 11 is larger as shown in FIG.
Dimensions of H ₂ depth direction of the intermediate portion of the truss 2, Step 1
Depends first on the height h _1, but in the conventional its height h
₁ is large, therefore the dimensions H ₁ in the depth direction of the intermediate portion of the truss 2 also increases inevitably.

As described above, when a new escalator is installed in an existing station building or the like, it is necessary to dismantle or remodel a part of the building. Here, the dimension H ₁ in the depth direction of the truss is required. , and H ₂ is large, the expansion of the dismantling modification work also becomes large scale, the increase in costs, lead to a long-term reduction of the construction period, also safety measures work of the enclosure and curing such as construction range in the station building and the like in the business In addition, there is a problem that business loss such as an increase in a period of inconvenience to the user occurs.

The present invention has been made in view of such a point, and an object of the present invention is to provide an escalator or the like which can reduce the size of the truss in the depth direction to reduce the load at the time of installation. To provide a man conveyor.

[0022]

SUMMARY OF THE INVENTION The man conveyor according to the present invention has a step train formed by connecting a number of steps endlessly through a chain between an upper outward path and a lower return path in a truss. In the circulating conveyor, each step in the row of steps has a frame, a tread plate on the upper surface of this frame, a riser plate on the back, front wheels on both sides of the front, and rear wheels on both sides of the rear. The rear wheel is provided inside the riser plate, and the lower end surface of the rear wheel is provided at a position substantially at the same level as the lower edge of the riser plate.

According to the second aspect of the present invention, a skirt guard panel is provided on both sides of the forward path on which the step moves to oppose the side surface of each step moving on the forward path, and supports the front and rear wheels on both sides of the step. Each of the shafts is provided at a position where a slight gap is provided between the shaft and the lower edge of the skirt guard panel.

According to a third aspect of the present invention, the truss is provided with a lifting prevention means for preventing the lifting of the moving step.

According to a fourth aspect of the present invention, the lifting prevention means is constituted by a rail member at least on the outward path side in the truss and in contact with the upper surface of the front wheel and the upper surface of the rear wheel in each step. And

According to the fifth aspect of the present invention, the lifting preventing means is provided at each step at least on the outward path in the truss, and rotatably contacts the lower surface of the guide rail supporting the front wheel and the rear wheel of the step. It is characterized by being constituted by a roller member.

According to the sixth aspect of the present invention, the lifting prevention means is provided at each step at least on the outward path side in the truss, and slidably contacts the lower surface of the guide rail supporting the front wheel and the rear wheel of the step. It is characterized by being constituted by a sliding member that slides.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Note that the same reference numerals are given to portions corresponding to the conventional configuration, and description thereof will be omitted.

FIGS. 1 to 3 show a first embodiment. In step 11 of the present invention, the rear wheel 19 is positioned inside the kick-up plate 15 and when the tread plate 14 is horizontal. Then the lower end of the wheel 19 is raised
At the same level as the lower edge of the lower end.

Therefore, the overall height of the step and the distance between the rear wheel, the rear end face, and the front edge of the tread are smaller than in the prior art.

As shown in FIG. 2, skirt guard panels 26 are provided on both sides of the outward path A on which the step 11 moves so as to be close to and face the side surface of the step 11. The shafts 16 and 18 supporting the front wheel 17 and the rear wheel 19 on both sides of the step 11 are provided at positions where there is a slight gap between the shafts 16 and 18 and the lower edge of the skirt guard panel 26 so as not to interfere with the skirt guard panel 26. Have been.

FIG. 3 shows a state where the step 11 is reversed at the end of the truss 2 to change the direction. The magnitude of the curvature when the step 11 is reversed to change the direction is determined by the distance L2 connecting the rear wheel 19 of the step 11 and the front edge of the tread plate 14, but in the present embodiment, the rear wheel 19 is 15 and the rear wheel 1
Since the lower end surface of the truss 9 is provided at a position substantially at the same level as the lower end edge of the riser plate 15, the distance L2 is small, and therefore the curvature is also small. Can be reduced in size.

Further, the rear wheel 19 of the step 11 is inside the riser plate 15 and the lower end surface of the rear wheel 19 is
5, the entire height h2 of the step 11 is reduced as shown in FIG. 2, and therefore, the dimension of the intermediate portion of the truss 2 in the depth direction is reduced. H2 can be reduced.

By the way, in the step 11 for moving on the outward path A due to the rear wheel 19 of the step 11 being arranged inside the riser plate 15, for example, when the load is biased on the upper surface near the rear of the tread plate 14, There is a possibility that the front side of step 11 may be lifted upward.

Therefore, as shown in FIG.
A rail member 27 is provided on the outward path A in the truss 2 as a means for preventing lifting of the truss. This rail member 27
Is provided on the upper side of the front wheel 17 and the rear wheel 19 of the step 11, and the upper surfaces of the front wheel 17 and the rear wheel 19 move along the guide rails 23 and 24 while contacting the rail member 27. .

According to such a configuration, when the step 11 attempts to float upward with respect to the guide rails 23 and 24, the force is received by the rail member 27, and thus the step 11 is prevented from floating. You.

FIG. 4 shows a second embodiment. This embodiment is an example in which a roller member 28 is used as a means for preventing the lifting in step 11. The roller member 28
From the frame 13 of the step 11, the guide rails 23, 2
Arm 13a provided so as to extend to below 4
It is rotatably attached to the lower end of the.

The roller member 28 is moved to step 11
Guide rail 2 for guiding front wheel 17 and rear wheel 19
The roller member 28 comes into contact with the lower surfaces of the step 3 and 24 and moves along the guide rails 23 and 24 integrally with the step 11 while rotating during the movement of the step 11.

Even in such a configuration, step 11
When the roller is going to float upward with respect to the guide rails 23 and 24, the force is received by the roller member 28, and thus the lifting of the step 11 is prevented.

FIG. 5 shows a third embodiment. This embodiment is an example in which a slide member 29 is used as the lifting prevention means in step 11. Slide member 29
Is the guide rail 2 from the frame 13 of step 11
It is attached to the lower end of an arm 13a provided to extend below 3, 3 and 24.

Then, the slide member 29 is moved to step 1
The slide member 29 is slidably in contact with the lower surfaces of the guide rails 23 and 24 for guiding the front wheel 17 and the rear wheel 19, and when the slide member 29 moves in
It is configured to move while sliding with the guide rails 23 and 24 integrally therewith.

Even in such a configuration, step 11
Is lifted upward with respect to the guide rails 23 and 24, the force is received by the slide member 29, and thus the lifting of the step 11 is prevented.

In each of the above embodiments, the description has been given of the case where the steps are reversed and the direction is changed in the end of the truss. However, in the present invention, the steps are changed with the steps facing up. Even in the case of the configuration described above, the same can be implemented. The present invention can be applied not only to an escalator but also to a man conveyor such as a moving sidewalk.

[0044]

As described above, according to the present invention,
The size of the truss in the depth direction can be reduced, so that the work load on the building side when installing the man conveyor can be reduced, and the truss can be installed efficiently and at low cost.

According to the third, fourth and fifth aspects of the present invention,
When the step is moved, the step can be prevented from floating.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing the inside of an end of a truss showing a first embodiment of the present invention.

FIG. 2 is a structural diagram of an intermediate portion of the truss.

FIG. 3 is an explanatory diagram showing a state when a step is reversed to change a direction.

FIG. 4 is a configuration diagram showing a second embodiment of the present invention.

FIG. 5 is a configuration diagram showing a third embodiment of the present invention.

FIG. 6 is an explanatory view showing an installation state of a conventional escalator.

FIG. 7 is a configuration diagram showing a structure inside an end portion of the truss of the conventional escalator.

FIG. 8 is an explanatory diagram showing a state in which the steps of the conventional escalator are reversed to change directions.

FIG. 9 is a configuration diagram showing a structure in an intermediate portion of the conventional escalator truss.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Escalator 2 ... Truss 10 ... Step train 11 ... Step 12 ... Chain 13 ... Frame 14 ... Tread plate 15 ... Rising plate 17 ... Front wheel 19 ... Rear wheel 21 ... Rotating wheel 23, 24 ... Guide rail 26 ... Skirt guard panel 27 ... Rail member 28: Roller member 29: Slide member

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshio Ogimura 1 Toshiba-cho, Fuchu-shi, Tokyo F-term in Fuchu Works, Toshiba Corporation 3F321 AA05 CB01 CB20 CB21 CB25 CC06 CC08 CC16

Claims (6)

[Claims] 1. A man conveyor in which a plurality of steps are connected endlessly via a chain and a step train circulates between an upper forward path and a lower return path in a truss. The step has a frame, a tread plate on the upper surface of this frame, a riser plate on the back, a front wheel on both sides of the front part, and a rear wheel on both sides of the rear part, and the rear wheel is inside the riser plate. And a lower end surface of the rear wheel is provided at a position substantially at the same level as a lower end edge of the riser plate. 2. A skirt guard panel is provided on both sides of the forward path on which the step moves to oppose the side surface of each step moving on the forward path, and each shaft supporting the front wheel and the rear wheel on both sides of the step includes the skirt guard panel. 2. The man conveyor according to claim 1, wherein the man conveyor is provided at a position where a slight gap is provided between the panel and the lower edge of the panel. 3. A man conveyor according to claim 1, wherein said truss is provided with uplift preventing means for preventing uplift of a moving step. 4. The lift prevention means is constituted by rail members at least on the outward path side in the truss, which contact the upper surface of the front wheel and the upper surface of the rear wheel in each step. The conveyor described in 1. 5. The lift preventing means is provided at each step at least on the outward path in the truss, and comprises a roller member rotatably contacting the lower surface of a guide rail supporting the front wheel and the rear wheel of the step. The man conveyor according to claim 3, wherein the conveyor is operated. 6. The lift preventing means is provided at each step at least on the outward path side in the truss, and is constituted by a slide member slidably contacting the lower surface of the guide rail supporting the front wheel and the rear wheel of the step. The man conveyor according to claim 3, wherein the conveyor is operated.