JPH01117193A - Passenger conveyor - Google Patents

Abstract

PURPOSE: To prevent a slip of a foot on a step board so as to dissolve a fall accident and to heighten safety by slightly lowering one of the front end and rear end of the step board to provide step difference between adjacent step boards. CONSTITUTION: A small diameter roller 11 is provided at the front end of a step board 6, and a large diameter roller 12 is provided at the rear end. Step difference (h) is formed in the lengthwise direction by the diameter difference between the rollers 11, 12. At this step difference (h) part, the descent of a foot H of a passenger on the step board 6 moving downward in the direction of an arrow mark C is limited to impede a slip to the upper face of the following step board 6. As a result, the passenger is stopped by the maximum slip quantity equivalent to sixty-one step boards so as not to become large slip distance inducing a fall, thereby improving safety. During upward movement of the step board 6, the heel of the passenger's shoe is caught by the step difference (h) part to impede a backward slip.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a horizontal or gently inclined passenger conveyor, and particularly to a tread structure suitable for preventing accidents of falling on the tread.

[Conventional technology]

Recently, horizontal or gently sloping passenger conveyors have been adopted in many fields due to their advantages in long-distance travel and mass transportation. There is a strong demand for safety features, especially measures to prevent falls on the treads, for this transportation machine, which is called an electric road or auto line, mainly for public use, and some attempts have been made to commercialize it. There is.

Passenger conveyor treads can be roughly divided into thin plate structures such as stainless steel plates and thick plate structures such as aluminum die-cast molding. Examples of tread plates with non-slip surfaces to prevent falls include: Japanese Utility Model Application Publication No. 58-117463 and Japanese Utility Model Application Publication No. 50-147394 are known.

As summarized in Fig. 4, the former is a tread plate 1 formed by forming a thin plate into a wave shape, and a protrusion TtI-is raised on the top of the surface to create a catch for the sole of the shoe. As summarized in FIG. 5, a thick tread plate 2 is made by die-casting aluminum or the like, and a groove M is provided at the top of the tread plate 2 to prevent it from slipping.

[Problem that the invention seeks to solve]

Among the above-mentioned conventional techniques, the one shown in FIG. 4 has concerns in terms of strength, such as sinking of the protrusions T due to passenger loads and cracks occurring around the protrusions T.

Further, in the case of the one shown in FIG. 5, there is a concern that damage Z may occur starting from the groove M portion, and both of these conventional examples also have safety problems as shown in FIG.

In other words, when the treadle 1 moves toward the entrance 3 as shown by arrow A, the passenger's feet F move toward the entrance 3 and the protrusion T as indicated by arrow B.
It is possible that the person will be under pressure and fall from this condition. Further, this situation is the same when the groove M shown in FIG. 5 is large, and there is also a concern that the toe may be caught in the damaged part Z.

An object of the present invention is to provide a safe passenger conveyor that prevents the foot from slipping on the tread and prevents falling accidents.

[Means for solving problems]

The above object is achieved by making either the front end or the rear end of the treadle moving on the treadle rail slightly higher and creating a step between adjacent treadboards. This level difference is caused by making the height of the top surface of the tread board relative to the guide surface of the tread rail different at its front end and rear end.

[Effect]

The difference in level between the treadboards is such that even if the passenger on the treadboard slips to some extent, the one step difference serves as a stopper for the toes of the foot, thereby limiting the sliding distance. Since this step exists at the joint of each tread, the passenger is stopped at the maximum amount of tread corresponding to one tread. Therefore, there is no longer a large slipping distance that could cause a fall, and safety is improved.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

First, an example of descending operation where slipping is likely to occur will be explained.Passengers cross the comb board 5 from the upper doorway 4 and place their feet on the tread 6 that moves in the direction of arrow C. Move between floors by placing your hand on the. The treadle 6 is moved horizontally by a treadle rail 9 near the comb board 5 of the entrance/exit, and then guided by the treadle rail 10 so that a step is created between the treadles 6 from the first curved part R to the inclined part. In this case, the treadle 6 is equipped with a small diameter roller 11 at the front end and a large diameter roller 12 at the rear end, and this difference in diameter creates a step in the length direction e, which essentially creates an inclination of the treadle rail 10. The dimensional relationship is such that there is a difference between the angle 0& and the inclination angle 0- of the footboard 6.

Here, the passenger's feet H are restricted from descending at the step and are prevented from sliding to the top of the next tread.On the other hand, in the case of upward driving, the heel of the shoe gets caught on the step, causing the passenger to move backwards. It is designed to prevent slipping.

In the example shown in FIG. 3, contrary to FIG. 2, the tread 6 has an inclination angle Oc that is smaller than the angle 0 & of the tread rail 10, and in this case, the inclination of the tread is The corner will be close to horizontal.

Therefore, there is an advantage that slippage under the feet can be eliminated to some extent.

In this example, the step between the treads is formed by the difference in the diameter of the guide rollers, but the step is not limited to this, and it is also possible to create a step in the structure of the tread rail using guide rollers having the same diameter. In this case, it can be handled by providing a plurality of tread rails (similar to the rail configuration below the comb board 5 in FIG. 1).

In this way, the height of the top surface of the tread with respect to the guide surface of the tread rail is set to be different at the front and rear ends of the tread, thereby limiting the distance underfoot.

〔Effect of the invention〕

According to the present invention, it is possible to provide a passenger conveyor equipped with a highly safe treadle.

[Brief explanation of the drawing]

FIG. 1 is a side view of essential parts of an embodiment of the present invention, and FIG.
3 is a side view of another embodiment of the present invention, FIGS. 4 and 5 are perspective views of the conventional example, and FIG. 6 is a side view of the conventional example. 4... Entrance/exit, 6... Stepboard, 7... Handrail, 8...
・Movable handrail, 9, 10...Tread rail, 11.12
...Guidance roller. No 10

Claims (1)

[Scope of Claims] 1. A large number of stepboards that are continuously arranged in an endless manner and move between a plurality of entrances; a stepboard rail that guides and supports the stepboards; a moving handrail that moves in synchronization with the stepboards; A passenger conveyor including a handrail that guides and supports a moving handrail, characterized in that either the front end or the rear end of the treadle is slightly elevated, and a step is provided between adjacent treadboards. . 2. Claim 1, characterized in that the steps between the step boards are formed by guide rollers of the step boards.
Passenger conveyor as described in section. 3. The passenger conveyor according to claim 1, wherein the step between the step boards is formed by a step rail that guides and supports the step boards.