JPH03264490A - Escalator - Google Patents

Abstract

PURPOSE:To prevent extension and cutting-off of a movable handrail by devising a movable handrail guide for guiding the movable handrail on the outward trip side of the upper side of a balustrade to support a rotary shaft to rotate on the basis of rotation of a driving machine and fitting a drive roller, which makes contact with the movable handrail and moves it by way of engaging with the inside of the movable handrail, on the upper part of this rotary shaft. CONSTITUTION:When a driving machine 9 starts, a movable handrail sprocket 11 rotates itself and rotates a horizontal shaft 19 through a chain 22, and a longitudinal shaft 24 rotates itself and rotates a plural number of longitudinal shaft 26 in the same direction or in the opposite direction. Then, a plural number of drive rollers 28 rotate themselves and circulate and move the outward trip side of the movable handrail 6 making circulating movement in the same moving direction by means of frictional force. Consequently, abrasion loss of the movable handrail 6 at the upper part reversal part of a balustrade 5 is widely restrained and accordingly, it is possible to reduce the number of drive devices 16 for movable handrail, to eliminate the trouble of extension and cutting-of of the movable handrail 6 so as to decrease the times of maintenance checking work and replacement of movable handrails.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an escalator for transporting people up and down floors, and more particularly, to an improvement in the structure of a handrail drive device that circulates a moving handrail.

(Prior art) Fig. 12 and Fig. 13 show a conventional spiral escalator. an intermediate section (2) which is curved and inclined; an upper machine room (3) provided horizontally at the upper end of this intermediate section (2);
A lower machine room (4) is provided horizontally at the lower end of the main frame (1), and on both sides there are railings (4) that follow the shape of the main frame (1).
5) are erected, and this pair of handrails (5)
An endless moving handrail (6) having a C-shaped cross section is wound around each of the two.

Inside the main frame (1), a pair of front wheel guide rails (7) and a pair of rear wheel guide rails (8) are arranged in the longitudinal direction.
) and (8) together form an endless circulation path inside the main frame (1). Furthermore, a drive machine (9) is installed inside the upper machine room (3), and a step sprocket (10) that rotates via a chain is rotatable based on the drive of this drive machine (9). A handrail sprocket (11) is fitted coaxially with the step sprocket (10) (see Fig. 13).

(12) is a plurality of steps arranged along the circulation path inside the main frame (1), and the steps (12) are connected to a shaft (not shown) horizontally penetrated through the upper front part of the steps (12). , a front wheel (12a) that is pivoted at both ends of this shaft and guided by the pair of front wheel guide rails (7), and a front wheel (12a) that is pivoted at both ends of the shaft and guided by the pair of rear wheel guide rails (8) that are pivoted at the lower portions of both sides behind the front wheels (12a). ) and a rear wheel (12b) guided by the rear wheel (12b). Also, on both sides of the shaft, the step sprocket (10
) is connected to the chain (13). However, the steps (12) are driven by the drive machine (9),
While being guided by the pair of front wheel guide rails (7) and rear wheel guide rails (8), people are moved upstairs and
Transport downstairs.

(14) is a power transmission device disposed in the center of the upper part of the intermediate portion (2), and this power transmission device (14) includes a rotatable shaft (14a) that is pivotally supported by the main body, and a rotatable shaft (14a) that is Axis (1
4a), a large diameter sprocket (14b) fitted to the shaft (14a), and a small diameter sprocket (14c) fitted to the shaft (14a).
It is composed of. Then, the small diameter sprocket (
14c) and the movable handrail sprocket (11), an endless chain (15) for transmitting power is wound around the movable handrail sprocket (11).

(16) is a movable handrail drive device disposed at the upper end of the upper part of the intermediate portion (2), and this movable handrail drive device (
15), as shown in FIG.
) and are rotatably provided with a plurality of rotatable rollers (16b) that are regularly supported by the rollers (16b) and sandwich the moving handrail (6) on the return side.

An endless chain (17) for transmitting power is wound around the negative portion of the plurality of rollers (16b) and the large diameter sprocket (14b).

On the other hand, Fig. 14 shows a conventional general linear escalator. In the figure, (IA) is the main frame which is the main body of the escalator, and this main frame (1^) has a vertically inclined middle part (
2^), an upper machine room (3^) provided horizontally at the upper end of this intermediate part (2^), and a lower machine room (4^) provided horizontally at the lower end of this intermediate part (2^). ). The other parts are constructed to have substantially the same structure as the spiral escalator described above.

Therefore, when the driving machine (9) is driven, the step sprocket (10) rotates to circulate the chain (13), and the plurality of steps (12) are connected to the pair of front wheel guide rails (7).
) and the rear wheel guide rail (8) as it circulates and transports people and cargo upstairs and downstairs.

Furthermore, when the drive machine (9) is driven, the handrail sprocket (11) rotates to circulate the chain (15), and the large diameter sprocket (14b) rotates to rotate the chain (15).
17) is moved in a circular manner, and the moving handrail (6), which is rotated and held by a plurality of rollers (16b), is moved in a circular manner in synchronization with the steps (12).

In addition, as a prior art document of this kind, Utility Model Application Publication No. 60-5067
No. 6, and No. 60-61269.

(Problems to be Solved by the Invention) The conventional spiral escalator and the general linear escalator are constructed as described above, and based on the drive of the drive machine (9), a plurality of movable handrails (6) on the return side are sandwiched. Since only the rollers (16b) rotated to move the moving handrail (6) in circulation, when a load was applied to the forward side, a large frictional resistance was generated on the forward side and the upper reversing part, causing movement. In order to smoothly circulate the handrail (16), it is necessary to provide a large number of movable handrail drive devices (16).

Further, since excessive tension is applied to the moving handrail (6), there is a risk that the moving handrail (6) may be elongated or cut. and,
Due to the risk of extension or cutting of the moving handrail (6), an increase in maintenance and inspection work and an increase in the number of replacements of the moving handrail (6) could not be prevented. In addition, a large number of mobile handrail drives (1
Due to the necessity of installing 6), it was not possible to suppress manufacturing costs.

The present invention has been made in view of the above, and is capable of suppressing driving force, eliminating the risk of elongation or cutting of the moving handrail, reducing the number of maintenance inspections and replacements of the moving handrail, and reducing manufacturing costs. The purpose is to provide escalators.

[°Means to solve the problem]

In order to achieve the above-mentioned object, the first aspect of the present invention includes a parapet erected on both sides of a main frame provided with a plurality of steps, and a horizontal C-shaped cross section wound endlessly around the parapet. a moving handrail, and a drive machine installed inside the main frame to circulately move the steps and the moving handrail in the longitudinal direction of the main frame, and furthermore, a guide for a moving handrail that guides the moving handrail on the outgoing side of the upper part of the parapet. The present invention is characterized in that a rotating shaft that rotates based on the rotation of the drive machine is pivotally supported, and a driving roller that fits inside the moving handrail and moves it in contact with the moving handrail is fitted onto the upper part of the rotating shaft.

In addition, in order to achieve the above-mentioned object, the second invention of the present invention includes a parapet installed on both sides of a main frame provided with a plurality of steps, and a cross-sectional horizontal C wound endlessly around the parapet. a handrail in the shape of a letter; a drive machine installed inside the main frame to circulately move the steps in the longitudinal direction of the main frame; It is equipped with a moving handrail drive device that rotates clamped rollers to circulately move the moving handrail in the longitudinal direction of the main frame, and furthermore, a frame is disposed inside the balustrade, and this frame has a gt and a driving device for the drive device. The present invention is characterized in that a rotating shaft that rotates based on this is pivotally supported, and a drive roller that slides into and moves the moving handrail on the outbound side is fitted onto the rotating shaft.

[Effect]

According to the first aspect of the present invention, a rotating shaft that rotates in the horizontal direction based on the rotation of the drive machine is pivotally supported on the moving handrail guide that guides the moving handrail on the outgoing side of the upper part of the parapet. A drive roller that fits inside the moving handrail on the outbound side and moves it in contact with it is fitted on the top of the handrail, so it suppresses the driving force, eliminates the risk of the handrail being stretched or cut, and is easy to maintain and inspect. It is possible to reduce the number of operations and replacement of moving handrails, and to suppress manufacturing costs.

Further, according to the second aspect of the present invention, a frame is disposed inside the parapet, and a rotation shaft that rotates in the vertical direction based on the drive of the drive machine is pivotally supported on the frame, and
This rotating shaft is fitted with a drive roller that slides against and moves the inside upper surface of the moving handrail on the outbound side, so it suppresses the driving force, eliminates the risk of elongation or cutting of the moving handrail, and maintains and inspects it. It is possible to reduce the number of operations and replacement of moving handrails, and to suppress manufacturing costs.

〔Example〕

Hereinafter, the first invention of the present invention will be described in detail based on an embodiment shown in Figs. This railing (5) is connected to the steps (12) as shown in Figure 2.
An inner board (51) erected on the side, and this inner board (51)
and a guardrail (52) installed horizontally between the upper part of the outside plate (not shown), and a moving handrail guide (53) that is erected on this guardrail (52) and guides the moving handrail (6) on the outbound side. Configured with the necessary features.

(18) is a frame arranged inside the above-mentioned parapet (5), and this frame (18) has a rotatable horizontal shaft (19).
is supported horizontally via a plurality of bearings (20), and a gear (21) is fitted to this horizontal shaft (19), and this gear (21) and the above-mentioned moving handrail sprocket (11) are connected to each other. As shown in FIG. 1, an endless chain (22) for transmitting power is wound around the shaft. Further, a bevel gear (23) is fitted to the end of the horizontal shaft (19).

In addition, the frame (18) and the movable handrail guide (53) are also included.
), a rotatable longitudinal shaft (24) is vertically supported via a plurality of bearings (20).
) is fitted with a bevel gear (25) that meshes with the bevel gear (23).

(26) is a plurality of vertical shafts vertically supported inside the movable handrail guide (53) via a plurality of bearings (20), and the lower part of the plurality of vertical shafts (26) and the vertical longitudinal shafts adjacent to these are A driving gear (27) meshing with the shaft (24) in series is connected to the shaft (24).
) are fitted respectively. Also, multiple vertical axes (26)
As shown in FIGS. 2 to 5, drive rollers (28) made of a friction material such as urethane rubber are fitted onto the upper part of the roller and the upper part of the longitudinal shaft (24) at every other end. There is. As shown in FIGS. 2, 4, and 5, the plurality of drive rollers (28) are connected to the inside of the moving handrail (6) on the outbound side.
The handrail (6) slides in sliding contact with the side and rotates in the horizontal direction as the drive machine (9) is driven, thereby moving the handrail (6) in a circular motion with frictional force in the moving direction (see Fig. 5).

The other parts are the same as the conventional example.

Therefore, when the driving machine (9) is driven, the movable handrail sprocket (11) rotates to rotate the horizontal shaft (19) via the chain (22), and the vertical shaft (24) rotates to rotate the plural vertical shafts. The shaft (26) is rotated in the same or opposite direction.

Then, a plurality of drive rollers (28) each slidingly in contact with the inner side of the movable handrail (6) rotate and circulate the outgoing side of the movable handrail (6) in the same direction of movement with a frictional force ( (See Figure 5).

As described above, according to the present invention, the plurality of drive rollers (2
8) is placed on the movable handrail guide (53),
The friction loss of the movable handrail (6) at the upper inverted portion of the balustrade (5) can be significantly suppressed, and the number of movable handrail drive devices (16) to be installed can be reduced. Further, according to the present invention, since the movable handrail drive device (16) is also used,
Reliably eliminates the possibility of elongation or cutting of the moving handrail (6), and significantly reduces the number of maintenance inspections and replacements of the moving handrail (6).
A significant reduction in manufacturing costs and a significant increase in production head can be expected.

Next, FIG. 6 shows a second embodiment of the first invention of the present invention. In this case, drive rollers (28) are fitted onto the tops of all the vertical shafts (26), A plurality of drive rollers (28) rotating in a direction opposite to the longitudinal axis (24) are brought into sliding contact with the other inside side of the moving handrail (6).

It is obvious that the same effects as those of the above-mentioned embodiment can be expected from this embodiment, and a larger driving force can be obtained.

Incidentally, in the above embodiment, the device used for a spiral escalator was shown, but it goes without saying that it can also be used for a general linear escalator.

Next, the second invention of the present invention will be described in detail based on an embodiment shown in FIGS. The frame is tilted and fixed in the shape of a deformed single character.A shaft (29) is rotatably supported at the lower front of the frame. Second gear (21).

(21^) are fitted respectively, and the first gear (21^) is fitted respectively.
1) and the movable handrail sprocket (11,), an endless chain (22) for power transmission is wound around it.

In addition, a plurality of horizontal shafts (19) are horizontally supported via a plurality of bearings (20) at the upper part and approximately the center of the front surface of the frame (18A). At the end,
Drive gears (27) are fitted into each of the plurality of drive gears (27) and the second gear (21^).
A power transmission chain (30) is wound endlessly.

Drive rollers (28) made of a friction member such as urethane rubber are fitted onto a plurality of horizontal shafts (19) that are supported on the front upper part of the frame (18A), respectively. As shown in FIGS. 8 and 9, the plurality of driving rollers (28) have their upper parts protruding outward from the movable handrail guide (53) and come into contact with the inner upper surface of the movable handrail (6), and are driven. As the machine (9) is driven, it rotates vertically and moves the handrail (6).
) in the moving direction using frictional force. The drive gear (27), which is pivotally supported at the center of the front of the frame (18A), acts to tension the chain (30) (see FIG. 8).

Therefore, when the drive machine (9) is driven, the movable handrail sprocket (11) rotates and rotates the shaft (29) via the chain (22), and the chain (30) circulates and rotates the multiple horizontal shafts. (19). Then, move the handrail (
A drive roller (28) in sliding contact with the inner upper surface of the handrail (6) rotates to circulate the forward side of the moving handrail (6) in the same direction of movement with a frictional force. Note that the arrows in FIG. 8 indicate the tension and center-saving force acting on the moving handrail (6).

As described above, according to the present invention, since a plurality of driving rollers (28 rollers) are arranged on the frame (18A) to circulately move the outgoing handrail (6) using frictional force, the handrail (5)
Friction loss of the movable handrail at the upper inverted portion of the movable handrail can be significantly suppressed, and the number of movable handrail drive devices (16) to be installed can be reduced. Further, according to the present invention, since the movable handrail drive device (16) is also used, the possibility of elongation or cutting of the movable handrail (6) is reliably eliminated, and maintenance and inspection work can be carried out and the movable handrail (6) is A significant reduction in the number of replacements, a significant reduction in manufacturing costs, and a significant increase in head can be expected.

Next, FIG. 1O shows a second embodiment of the second invention of the present invention, and in this case, the second gear (21^
), a plurality of drive gears (27), and a drive roller (2B)
Instead, the pulley (31) is connected to the shaft (29) and the horizontal shaft (
19), and a power transmission belt (32) is wound endlessly around the plurality of pulleys (28).

It is obvious that the same effects as those of the above-mentioned embodiment can be expected from this embodiment, and the number of parts can be reduced.

In addition, in the above embodiment, the product was used for a general straight escalator, but as shown in FIG. The upper part of the balustrade of an escalator with intermediate landing (5) or the balustrade on the horizontal landing (5)
Needless to say, it would be good to have it attached to the building.

〔Effect of the invention〕

As described above, according to the present invention, an escalator can suppress the driving force, eliminate the risk of extending or cutting the moving handrail, reduce the number of maintenance inspections and replacing the moving handrail, and reduce manufacturing costs. can be provided.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing one embodiment of an escalator according to the first invention of the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 shows a longitudinal axis adjacent to the longitudinal axis. FIG. 4 is an explanatory diagram showing the vertical axis adjacent to the vertical axis in FIG.
The figure is a sectional view taken along the line V-V of FIG. 2, FIG. 6 is a view corresponding to FIG. 5 showing a second embodiment of the escalator according to the first invention, and FIG. FIG. 1 is a view corresponding to FIG. 1 showing an embodiment of the escalator according to the invention, FIG. 8 is a detailed view of the main part of FIG. 7, FIG. 9 is a sectional view taken along line IX-IX in FIG. 8, and FIG. FIG. 8 is a diagram corresponding to the second embodiment of the escalator according to the second invention, FIG. 11 is a diagram showing the third embodiment of the escalator according to the second invention, and FIG. Overall diagram showing a conventional spiral escalator, No. 13
The figure is an explanatory view showing a conventional moving handrail drive device, and FIG. 14 is an overall view showing a conventional general linear escalator. In the figure, (1) and (1^) are the main frame, (5) is the parapet, and (6)
is the moving handrail, (9) is the drive device, (11) is the moving handrail sprocket, Cl2) is the step, C16) is the moving handrail drive device, (18) and (18^) are the frame, (19) is the horizontal Axis, (24) is a vertical axis, (26) is a vertical axis, (27) is a drive gear, (28) is a drive roller, (29) is a shaft, (5
3) is a guide for a moving handrail. In the figures, the same reference numerals indicate the same or equivalent parts.

Claims (2)

[Claims] (1) A parapet installed on both sides of a main frame with multiple steps, a movable handrail with a horizontal C-shaped cross section wrapped endlessly around this parapet, and steps installed inside the main frame. and a drive machine that circulates and moves the movable handrail in the longitudinal direction of the main frame, and the movable handrail guide that guides the movable handrail on the outgoing side of the upper part of the handrail has a rotary motor that rotates based on the rotation of the drive machine. 1. An escalator characterized in that a shaft is pivotally supported, and a drive roller is fitted onto the upper part of the rotation shaft to fit into the inside of a moving handrail and move it in contact with it. (2) A parapet erected on both sides of a main frame with a plurality of steps, a movable handrail with a horizontal C-shaped cross section wrapped endlessly around the parapet, and a handrail installed inside the main frame with a horizontal C-shaped cross section. A drive machine that circulates the steps in the longitudinal direction of the main frame, and a roller that is disposed inside the main frame and grips the return side of the moving handrail based on the drive of the drive machine is rotated to move the moving handrail in the longitudinal direction of the main frame. In an escalator equipped with a moving handrail drive device for circular movement,
A frame is disposed inside the handrail, and a rotating shaft that rotates based on the drive of the drive device is pivotally supported on this frame, and the rotating shaft is in sliding contact with the inside of the moving handrail on the outbound side. An escalator characterized by having a driving roller fitted therein for movement.