JPH07100595B2 - Middle high speed moving sidewalk - Google Patents

Description

TECHNICAL FIELD The present invention relates to an intermediate high-speed moving sidewalk which conveys at a higher speed than the both ends in the middle part of a conveying process, and particularly to acceleration and deceleration thereof.

[Conventional technology]

FIG. 8 and FIG. 9 show a conventional intermediate high-speed moving walkway disclosed in, for example, Japanese Patent Publication No. 61-44795. In the figure,
(1) is a main frame, (2) is a tread chain that is endlessly provided on the main frame (1) and moves cyclically, (2a) is two link pieces (2b)
One end of each of the two links is pivotally attached by the tread shaft (2c) to form the main part of the tread chain (2), and (2d) is the anti-tread shaft of the link piece (2b) of the adjacent two links (2a). (2c) Connecting shafts pivotally connected to each other at the side ends, (3) treads held continuously by the tread shaft (2c), and (4) endlessly attached to the main frame (1) Guide rails that are provided to guide the rollers of the tread shaft (2c), and (5) are shift rails that are provided inside the guide rail (4) of the main frame (1) and that guide the rollers of the connecting shaft (2d). As shown in FIG. 8, the low speed section (5a) is formed in parallel with the longitudinal end of the main frame (1) apart from the guide rail (4), and approaches the longitudinal middle of the main frame (1). It is gradually arranged closer to the guide rail (4) to form the speed change section (5b). Arranged in parallel close to (4) to form a high speed section (5c). (6) is a high-speed section (5c) of the main rail (1), the middle of the longitudinal direction of the transmission rail (5)
(6a) is a drive machine provided corresponding to, and a drive chain of the drive machine (6) having an engaging portion (6b) engaging with the connecting shaft (2d), and (7) is A passenger carried by a tread (3).

The conventional intermediate high-speed moving walkway is constructed as described above, and the link pieces (2b) of the double link (2a) form an angle A between them over the entire length of the tread chain (2) as shown in FIG. It is placed in a bent state. When the drive machine (6) is energized, the drive chain (6a) operates, and it is assumed that the drive chain (6a) is operated in the direction of arrow B shown in FIG. 8 and the connecting shaft (2d).
The tread chain (2) is driven in the direction of arrow B by the engagement. Since the distance between the guide rail (4) and the speed change rail (5) is wide in the low speed section (5a) of the driven tread chain (2), the angle A between the link pieces (2b) becomes small and the speed is low. Operated at a constant speed. Then, in the shift section (5b), the interval between the two is gradually narrowed, so that the angle A is gradually increased and the vehicle is accelerated from low speed. Then, in the high speed section (5c), the interval between the two is kept narrow and the vehicle is operated at high speed. When the tread chain (2) driven at high speed in the longitudinal middle portion of the main frame (1) approaches the end on the opposite side of the main frame (1),
It is decelerated by the speed change section (5b) and then the low speed section (5
It is operated at a constant speed in a) and turns over to the lower side of the main frame (1).

[Problems to be Solved by the Invention]

In the conventional intermediate high-speed moving sidewalk as described above, even in the high-speed section (5c) where the tread chain (2) meshes with the drive chain (6a), the link pieces (2b) of the double link (2a) are bent and arranged. To be done. The angle A of the link piece (2b) at this time is determined by the mutual distance between the guide rail (4) and the speed change rail (5), but the angle A is not uniform due to the assembly error of the guide rail (4) and the like. Therefore, there is a problem in that the drive chain (6a) and the connecting shaft (2d) do not mesh smoothly and the vibration and noise increase.

The present invention has been made in order to solve the above problems, and an object thereof is to obtain an intermediate high-speed moving walkway with a simple structure, low vibration, low noise, smooth operation, and good stability. .

[Means for Solving the Problem] In the intermediate high-speed moving walkway according to the present invention, a drive machine provided in the main frame, a drive chain having an endless linear motion section on the drive machine, and a large number of tread shafts. To form an endless shape, move the circulation path with the forward path on the upper side of the main frame and the return path on the lower side, and the reverse path on both sides, and move to the tread chain with the driven part inside the circulation and the tread axis. A tread that is engaged and arranged outside the circulation of the tread chain, and one end is independently rotatably supported by a tread shaft that forms a part of the tread chain and a rack is formed on the lower surface and the other end is A pair of bearing links projecting opposite to each other and the other part of the tread chain consisting of two link pieces are arranged between the tread shafts, and one ends of the link pieces are respectively facing bearing links, The other ends are pivotally attached to each other via an axis perpendicular to the tread surface, Is provided in a main frame along a circulation path, a double link forming a rack, a speed change roller pivotally supported by a pivotal portion of the link pieces of the double link via an axis orthogonal to the tread surface, It guides the speed change roller, and the bearing link and 2
The connecting links are arranged in a straight line, and the racks formed on the lower surfaces of the connecting links are sequentially engaged with the linearly moving portions in a plurality of meshing states, and the shifting rollers are placed at the positions where the linked racks serving as the driven portions are formed. A shift rail for holding the shift roller and displacing the shift roller to a position where the link pieces of the two-link link are gradually bent and arranged toward the end portion from the longitudinal middle portion of the main frame is provided. It is a thing.

[Operation] In the intermediate high-speed moving sidewalk configured as described above, the tread chain that moves in the circulation path has the bearing link and the bearing link at the center of the main frame.
The connecting link becomes a driven portion linearly arranged by being guided by the shift rail via the shift roller to form a connecting rack that makes a plurality of meshing engagements with the linear motion portion of the drive chain,
In the inversion path, the bearing link rotates about the tread axis corresponding to the inversion radius of the tread chain.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. In the figure, the same reference numerals as those in FIGS. 8 and 9 indicate corresponding parts, and (2e) is a guide roller (2f) which is pivotally supported by the end of the tread shaft (2c) and guided by the guide rail (4). ) Is a bearing link consisting of two links, one end of which is pivotally supported by the tread shaft (2c) and the other end of which projects toward the opposite side, and the rack (20 )
Is provided. (2b) is a link piece that constitutes the double link (2a), the same rack (21) as the bearing link (2f) is provided inside the circulation, and one end of the long side is the tread (3)
A connecting shaft pivotally supported by the protruding ends of the bearing links (2f) adjacent to each other by the pins (2g) provided in the direction orthogonal to the plane, and the other longitudinal end being provided in the direction orthogonal to the plane of the tread (3). It is pivotally attached by (2d). (2h) is the connecting shaft (2
The gear shifting roller (5) pivotally supported in d) is provided along the length of the main frame (1), and is arranged on both sides of the gear shifting roller (2h) in the width direction of the main frame (1). As shown in FIG. 1, the shift rails are arranged in parallel at the longitudinal end of the main frame (1) away from the guide rail (4) in the width direction of the main frame (1), and the double link (2a) is provided. A low speed section (5a) that restricts the position of the speed change roller (2h) is formed so as to be bent, and the speed change roller (2a) gradually expands as the main frame (1) approaches the longitudinal middle. 2h) a variable speed section (5b) for changing the position, and in the middle of the longitudinal direction of the main frame (1), a high speed section (2h) that holds the position of the speed change roller (2h) in a straight line ( 5c) is formed. (3) is a tread that is pivotally supported by a tread axis (2c). A fitting hole (3a) is provided on one side in the longitudinal direction of the main frame (1), and another tread (3) adjacent to the other side is provided. An auxiliary plate (3b) slidably fitted in the fitting hole (3a) is pivotally attached. (6) is a drive machine provided at a position corresponding to a high speed section (5c) on the gearshift rail (5) in the longitudinal middle of the main frame (1), and is a rack (20) (21) of the tread chain (2). An endless drive chain (6a) that meshes with is provided.

In the intermediate high-speed moving sidewalk configured as above,
When the tread plate (3) moves in the direction shown by arrow B in FIG. 1, for example, the position of the speed change roller (2h) is restricted by the speed change rail (5) at the longitudinal end of the main frame (1). The double link (2a) is bent at an angle A shown in FIG. Then, the tread plate shafts (2c) approach each other, and the auxiliary plate (3b) is deeply fitted to the adjacent tread plate (3) so as to move at a low speed in the low speed section (5a) of the shift rail (5). When the tread (3) enters the speed change section (5b) from the low speed movement, the position of the speed change roller (2h) in the width direction of the main frame (1) of the speed change roller (2h) is displaced by the speed change rail (5) so that the double link (2a) is moved. The angle A gradually increases, the movement of the tread plate (3) is accelerated, and the mutual distance between the tread shafts (2c) gradually increases, so that the auxiliary plate (3b) is gradually pulled out from the fitting hole (3a). Then, when the tread (3) enters the high speed section (5c), the speed change roller (2h) is moved by the speed change rail (5) to the double link (2
It is held at the position where the angle A of a) is 180 ° and moves at high speed. Then, in the high speed section (5c) where the two-link (2a) is linear, the drive chain (6) of the driven machine (6) is energized.
The tread chain (2) is driven by the a) via the racks (20) and (21), and the tread (3) moves. Then, the tread (3) moved at high speed is decelerated in the speed change section (5b) by the action of the speed change rail (5) and the speed change roller (2h) on the other end side of the main frame (1), and in the low speed section (5a). The speed becomes low, and the auxiliary plate (3b) is stored in the fitting hole (3a). In the inversion path, the bearing link (2f) rotates about the tread axis (2c) in accordance with the inversion radius of the tread chain (2).

As described above, according to the present invention, the connecting rack in which the bearing link (2f) and the double link (2a) are linearly arranged and the linear motion portion of the drive chain (6a) make a multi-engaging engagement. Since the drive chain (6a) and the connecting rack are smoothly engaged with each other in this way, a driving force transmission mechanism with low vibration and low noise can be obtained.

Further, in the reversing path, the bearing link (2f) is rotated around the tread shaft (2c) in accordance with the reversing radius of the tread chain (2), so that the reversing operation is smoothly performed. You can

[Advantages of the Invention] As described above, according to the present invention, in the tread chain that moves in the circulation path, the bearing link and the double link are guided to the shift rail via the shift roller in the central portion of the main frame. And the linearly arranged driven parts to form a connecting rack that makes a plurality of meshing engagements with the linearly moving part of the drive chain, and in the reversing path, the bearing link causes the tread chain to center around the tread shaft. Since it rotates according to the reversing radius, it is possible to obtain a driving force transmission mechanism with low vibration and noise, and smooth reversing operation is possible. It has the effect of providing an intermediate high-speed moving walkway with excellent stability and stability.

[Brief description of drawings]

FIG. 1 is a conceptual plan view showing an embodiment of an intermediate high-speed moving walkway according to the present invention, FIG. 2 is an enlarged view of a part II of FIG. 1, FIG. 3 is an enlarged view of a part III of FIG. 1, and FIG. Is an enlarged view of IV part in FIG. 1, FIG. 5 is a side view of FIG. 4, FIG. 6 is an enlarged view conceptually showing the tread in FIG. 1, FIG. 7 is a side view of FIG.
FIG. 8 is a side view conceptually showing a conventional intermediate high-speed moving sidewalk, and FIG. 9 is an enlarged view of an IX portion in FIG. (1) …… Main frame, (2) …… Tread chain, (2a) …… Double link, (2b) …… Link piece, (2c) …… Tread shaft, (2f)
…… Bearing link, (2h) …… Shifting roller, (3) ……
Treads, (5) …… Shift rails, (20) (21) …… Racks. The same parts or corresponding parts in the drawings are denoted by the same reference numerals.

Claims (1)

[Claims] 1. A main frame, wherein a drive machine provided in a main frame, a drive chain endlessly provided on the drive frame and having a linear motion portion, and a plurality of tread shafts are connected to form an endless form. The forward path to the upper side, the return path to the lower side, and the return path on both sides to move the circulation path, and the tread chain having a driven part inside the circulation and the outside of the tread chain that is engaged with the tread shaft and And a pair of treads that are part of the tread chain and are rotatably supported independently at the one end of the tread shaft and have a rack formed on the lower surface and the other ends projecting to opposite sides. The bearing link and the other part of the tread chain, which consists of two link pieces,
The link pieces are respectively arranged between the tread shafts, and one ends of the link pieces are pivotally attached to the bearing links facing each other, and the other ends are pivotally connected to each other via an axis orthogonal to the tread surface, and a rack is attached to the lower surface. The formed double link, the speed change roller pivotally supported by the linking portions of the link pieces of the double link via an axis orthogonal to the tread surface, and provided on the main frame along the circulation path. , The shift roller is guided, the bearing link and the double link are linearly arranged in the longitudinal middle portion of the main frame, and the rack formed on the lower surface of each of the plurality of racks and the linear motion portion are mutually plural. In the meshed state, the shift roller is held at a position where a coupled rack to be a driven portion is formed, and the links of the two-link link are moved toward the end portion from the longitudinal middle portion of the main frame. It depends on each other Intermediate fast moving walkway with a shift rail for displacing the shifting roller to a position disposed refracted.