JP2525330Y2 - Belt-type moving sidewalk belt grabber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] In the present invention, an endless tread belt is wound between a belt driving pulley and a belt tension pulley, and a passenger riding on an upper surface of the belt is transferred. It relates to a belt-type moving sidewalk.

[Background of the Invention] In recent years, a so-called moving sidewalk that transports personnel by using an endless tread belt does not need to have a complicated structure like a conventional stair-type escalator as shown in FIG. An endless tread belt c is wound between the driving pulley a and the belt tension pulley b, and a guide roller d for guiding the tread belt c is disposed between the belt driving pulley a and the belt tension pulley b. The structure is simple and maintenance is easy.

Also, in the thickness direction, it is sufficient if there is a space for reciprocation of the belt, so that the belt can be made thinner.
It can be easily installed on a flat floor almost flush with the floor.

The movable part is a flat belt, which gives a comfortable ride and is safe, and it does not slip like metal. Therefore, it has attracted attention as a means of transportation for stations, department stores, shopping centers, and parking lots.

[Problems to be Solved by the Invention] Moving sidewalks have various advantages as described above.
In addition, while the length can be freely selected by changing the length of the belt, it is inevitable that the belt is stretched due to aging during use because the belt is used.

For this reason, conventionally, a tread belt is wound between a belt drive pulley and a tension pulley, and a predetermined tension output is always applied to the tension pulley by a spring or a cylinder.

However, the longer the tread belt, the greater the elongation and the longer the stroke for belt tension. For this reason, the tensioning device for applying tension to the tread belt may break down, or if the maintenance is neglected, the tread belt may be loosened and the belt drive pulley may run idle. Therefore, when installed on a flat surface such as a road surface, there is not much problem.However, when installed on a slope between the floors of a building, there is a possibility that the tread belt may slip in a downward direction and the passengers board. There is a drawback that slipping on the ground may cause a fall accident or the like, which is dangerous. However, no effective means has been taken for that purpose.

Means for Solving the Problems According to the present invention, an endless tread belt is wound between a belt driving pulley and a belt tension pulley, and a belt-type moving sidewalk for transferring a passenger riding on the upper surface of the belt is used. An eccentric roller is provided so as to oppose the side tread belt, and a moving speed of the tread belt is detected by a speed detector.If the detected speed deviates from a set speed range, a driving device is operated and the opposing roller is moved. The eccentric roller provided in this way is rotated synchronously so as to sandwich the tread belt. Further, desirably, a synchronous gear meshing with the shaft end of the eccentric roller is provided, and the eccentric roller provided to be opposed by the gear is synchronously rotated, so that
Even if the tread belt slackens and the belt drive pulley spins, this is detected immediately, and the tread belt is grabbed and fixed to prevent the passenger from overturning due to the slip of the tread belt. The present invention provides a belt gripping device for a vehicle.

[Embodiment] Hereinafter, the present invention will be described with reference to an embodiment shown in the drawings.

FIG. 1 is a plan view of a main part of the moving sidewalk in which the present invention is implemented, with the tread belt on the forward side (upper side) removed, FIG. 2 is a side view of the main part, and FIG. FIG. 4 is a sectional view taken along the eccentric shaft.

In FIG. 1, a belt driving pulley and a belt tension pulley (not shown) are rotatably supported at both ends of a frame 1. And
An endless treadle belt 2 is wound between the two pulleys, and the upper side 2a of the belt 2 is a forward side, and the lower side 2b is a return side, and a passenger is put on the forward side belt 2a. Transfer.

In addition, the lower surface of both ends of the outgoing side tread belt 2a is guided and supported by a number of guide rollers 3 provided along the moving direction.

On the other hand, the return side tread belt 2b is guided downward (in a direction away from the outgoing tread belt 2a) by two sets of direction change rollers 4a, 4b and 5a, 5b provided at appropriate positions. Then, the two sets of direction changing rollers 4a, 4b and 5a, 5b
The eccentric rollers 6a and 6b are provided to face each other with the return side tread belt 2b interposed therebetween.

The eccentric rollers 6a and 6b are rotatably supported at both ends by bearings 7.
At one or both ends, tuning gears 8a, 8b such as spur gears or sector gears meshing with each other are provided, and when one of the eccentric rollers 6a or 6b is rotated, the other gear is synchronized with the other and the other is rotated. It is designed to rotate.

A bracket 9 is provided on one of the eccentric rollers 6a and 6b.
One end of a drive device 10 such as an electric cylinder or a hydraulic cylinder mounted on the frame 1 is connected to the frame 1 via a.
The driving device compares a detection speed of a contact type speed detector 11 such as a touch pulley type or a non-contact speed detector 11 such as a pulse detector with a set speed of a preset speed setter (not shown) by a comparator. Then, when the detected speed deviates from the allowable range of the set speed, the operation is performed by a command signal from the comparator.

Reference numeral 12 denotes a contact fixed to one end of the eccentric roller 6a or 6b. When the eccentric roller 6a or 6b rotates by a predetermined angle, a limit switch 13 fixed to the frame 1 is operated to stop the driving device 10. ing.

As shown by the solid line in FIG. 4, the eccentric rollers 6a and 6b allow the free passage of the tread belt 2 with the small diameter portion facing the tread belt 2 when the moving sidewalk is normally operated. And the step board belt 2 as described above.
Is out of the set speed range, the drive unit 10 is operated to rotate the eccentric rollers 6a and 6b, and the gap between the opposing eccentric rollers 6a and 6b is changed as shown by the broken line in FIG.
The tread belt 2 is sandwiched and fixed with the large diameter portions facing each other so as to be smaller than the thickness of the tread plate.

In the present embodiment, one of the eccentric rollers 6a and 6b is rotated by the driving device 10, and the gears mounted on the eccentric rollers 6a and 6b are meshed with each other to synchronize the eccentric rollers 6a and 6b provided opposite to each other. Although the drive device 10 is illustrated as an example, if the drive device 10 is provided on each of the eccentric rollers 6a and 6b, and the respective drive devices 10 are driven in synchronization with each other,
It goes without saying that the tuning gear may be deleted.

 Next, the operation will be described.

When a belt driving pulley (not shown) is driven, the tread belt 2 moves in the direction indicated by the arrow in FIG. At this time, since the eccentric rollers 6a and 6b are set so that the small-diameter portions face each other as shown by the solid line in FIG. 4, the gap between the eccentric rollers 6a and 6b is sufficiently larger than the thickness of the tread belt. The belt 2 can pass freely without being restricted by the eccentric rollers 6a and 6b.

When the speed of the tread belt 2 deviates from a preset speed range, for example, when a tension pulley (not shown) idles due to elongation of the tread belt 2 due to use, the speed is detected by the speed detector 11 and the driving device is driven. Activate 10,
The eccentric rollers 6a and 6b are rotated so that the large-diameter portions of the eccentric rollers 6a and 6b face each other as shown by the broken line in FIG.

According to the present invention, the speed of the tread belt is detected, and when the speed deviates from the set speed range, the eccentric roller is actuated to pinch and fix (stop) the tread belt. When the vehicle is installed in an inclined position, the tread belt does not slip in the downward direction and the passenger does not fall down, so that it is safe.

In addition, since the fixing of the tread belt is performed by the rotation of the eccentric roller, the operation is reliable, the space for installation is small, and the present invention can be easily applied to existing devices.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of the present invention, FIG.
1 is a sectional view taken along the line III-III of FIG. 1, FIG. 4 is a sectional view of an eccentric roller portion, and FIG. 5 is a schematic view of a known moving sidewalk. DESCRIPTION OF SYMBOLS 1 ... Frame 2 ... Tread belt 2a ... Tread belt going side 2b ... Tread belt return side 6a, 6b ... Eccentric rollers 8a, 8b ... Tuning gear 10 ... Driving device 11 ... Speed detector

Claims (2)

(57) [Scope of request for utility model registration] An endless tread belt is wound between a belt drive pulley and a belt tension pulley, and is opposed to a belt-type moving sidewalk for transporting a passenger riding on an upper surface of the belt with a return tread belt interposed therebetween. In addition to providing an eccentric roller, the moving speed of the tread belt is detected by a speed detector, and when the detected speed deviates from a set speed range, a driving device is operated, and the eccentric roller provided opposite to the tread belt is provided. A belt-type moving sidewalk belt gripping device characterized in that the belt-type moving sidewalk belt gripping device is rotated synchronously so as to pinch the belt. 2. The belt-type moving device according to claim 1, wherein a synchronous gear meshing with each other is provided at the shaft end of the eccentric roller, and the eccentric roller provided to face the gear is synchronously rotated by the gear. Sidewalk belt grabber.