JP3617372B2 - Man conveyor step - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a step of a man conveyor.
[0002]
[Prior art]
As shown in FIG. 2, the escalator step 1 is provided on a front wheel shaft 4 to which an endless step chain 2 and a front wheel 3 are attached via a fixture 5 so as to be removable (by an opening / closing lever mechanism 10). It is common.
[0003]
[Problems to be solved by the invention]
The fixture 5 shown in FIG. 3 is usually used and is fixed in advance to the front wheel shaft 4. If this is deteriorated and must be replaced, the step chain 2 or Since the front wheel 3 and the like had to be removed first, it was an extremely large work. In addition, it is necessary to devise positioning of the fixture 5.
[0004]
The present invention has been made in view of the above points, and an object of the present invention is to provide a step of a man conveyor that can easily perform positioning, replacement work, and the like.
[0005]
[Means for Solving the Problems]
The present invention is such that a step is attached to a predetermined position of a front wheel shaft of a man conveyor via a fixing tool, and a groove is provided at a predetermined position of the front wheel shaft. The fixing device has an opening and faces the front wheel shaft. The inner surface has a protrusion, and the protrusion fits into the groove.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The present invention proposes a detachable fixture.
[0007]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a fixture 50 according to the present invention, FIG. 4 is an explanatory diagram for explaining the mounting procedure of the fixture 50, and FIG. 5 is an engaged state of the front wheel shaft 40 and the fixture 50 according to the present invention. FIG.
[0008]
In the figure, reference numeral 50a denotes an opening provided in the fixture 50, which is configured to open the mouth of the cylindrical fixture 50, for example, so that the mouth can be easily opened on the outer periphery opposite to the opening 50a. Is provided with a groove 50b.
[0009]
For example, a protrusion 50 c is provided on the inner surface of the fixture 50, while a groove 40 a is provided on the front wheel shaft 40, and the protrusion 50 c of the fixture 50 is fitted into the groove 40 a of the front wheel shaft 40. Thus, the fixture 50 is attached to the front wheel shaft 40 and positioned accurately.
[0010]
The engaging relationship between the fixture 50 and the front wheel shaft 40 may be engaged by providing protrusions and grooves in reverse, and is not limited to the embodiment. Such a fixture can be made of various materials such as nylon resin.
[0011]
With such a fixture 50, as can be seen from FIG. 4, attachment / detachment of the fixture 50 to / from the front wheel shaft 40 can be performed in a conventional manner while the step chain 2 and the front wheel 3 are attached to the front wheel shaft 40. This can be performed very easily by the lever mechanism 6, and the labor for replacing the fixture can be greatly improved. Needless to say, the present invention can be applied not only to escalators but also to the structure of a moving sidewalk step.
[0012]
【The invention's effect】
As described above, according to the present invention, even when the fixture must be replaced due to aging, it is possible to replace only the fixture very easily.
[Brief description of the drawings]
FIG. 1 is a perspective view of a fixture 50 according to the present invention.
FIG. 2 is a partial detail view of a conventional escalator step.
3 is an enlarged perspective view of the fixture 5 in FIG. 2. FIG.
FIG. 4 is an explanatory diagram for explaining the attachment procedure of the fixing tool 50 of FIG. 1;
FIG. 5 is a diagram showing an engaged state between a front wheel shaft 40 and a fixture 50 according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Escalator step 2 Step chain 3 Front wheel 4, 40 Front wheel shaft 40a Groove 5, 50 of front wheel shaft 40 Fixing tool 50a Opening 50b of fixing tool 50 Groove 50c of fixing tool 50 Projection of fixing tool 50

Claims (2)

In the case where a step is attached to a predetermined position of the front wheel shaft of the man conveyor via a fixture,
There is a groove at a predetermined position of the front wheel shaft, the fixture has an opening, and a protrusion is formed on the inner surface facing the front wheel shaft, and the protrusion fits into the groove. Conveyor steps. The step of the man conveyor according to claim 1, wherein a groove is provided on an outer periphery opposite to the opening of the fixture.

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