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PCT International Search Report dated mailed Dec. 11, 2003 relating to International Application No. PCT/U S03/ 10362.
Primary Examiner * Patrick Mackey (74) Attorney, Agent, or Firm * Carlson, Gaskey & Olds PC
A display device (40) for use With a passenger conveyor (20) provides a traflic floW direction indicator and visible maintenance information. One example includes a display panel (42) supported on a surface (38) that is conveniently positioned betWeen a handrail (28) and a landing (24). In one example, a single display panel (42) alternatively provides the traffic floW direction indicator or the maintenance information. In another example a first display panel (42) and a second display panel (48) are supported on a plate (43) that is selectively moveable into different positions, depending on Which display panel should be visible. One example includes a remote signaling device (62) that alloWs an individual to control the information shoWn on the display device (40).
8 Claims, 2 Drawing Sheets
1 COMBINED TRAFFIC FLOW AND MAINTENANCE INFORMATION DISPLAY FOR A PASSENGER CONVEYOR
This invention generally relates to displays for passenger conveyors. More particularly, this invention relates to a combined traflic floW and maintenance information display.
DESCRIPTION OF THE RELATED ART
Passenger conveyors, such as escalators and moving WalkWays, typically include a plurality of steps that move along a selected path betWeen landings. In the case of escalators, the steps move in an upWard or doWnWard direction to carry passengers betWeen different levels Within a building, for example.
It has been desirable to provide a visible indication of the direction of movement of a passenger conveyor to approaching passengers. One approach has been to include visible markings on the outer decking beneath the balustrade associated With the handrail. This approach has been used Where the balustrades are not clear. Another approach has been to include the visible marking on the outside of a glass balustrade. A shortcoming to either of these approaches is that they are visible only to passengers approaching the escalator from a straight-on direction. Such indicators may be visible at other particular angles but only from limited vantage points.
Another type of indicator provided previously Was to include a post or sign external to the escalator indicating a direction of traffic floW. A shortcoming of such signs is that they are not part of the escalator system and can prove inconvenient to business oWners, for example, Who are trying to maximize their use of floor space.
Another type of indicator provided With escalators has been a fault indicator on an operation panel. Typically, the inner decking of the escalator has provided a location for mounting the operation panel. A mechanic or technician Who desires to vieW information on such an operation panel must be on the escalator. As the vertical surface of the inner decking typically provided the location for the operation panel, the information on the panel Was not readily visible Without bending doWn to observe a displayed fault code, for example.
There is a need for an improved direction indicator display to provide individuals a visible indication of the direction of traflic floW of a passenger conveyor, such as an escalator. Additionally, there is a need for an improved operation panel display arrangement. This invention addresses both of those needs While avoiding the shortcomings and draWbacks of prior attempts.
In general terms, this invention is a display that provides traflic floW and maintenance information. One example device designed according to this invention includes a display that provides a visible indication of a direction of movement of the passenger conveyor and a visible indication of at least one type of maintenance information regarding the conveyor.
In one example, the display operates in a first mode to provide the direction indication and a second mode to provide the maintenance information.
In another example, a first display panel provides at least the direction indication While a second display panel provides at least some of the maintenance information. In one particular example, the display panels face in opposite directions and
are mounted on a support plate that is moveable betWeen a position Where the first display panel is visible and another position Where the second display panel is visible. One example includes at least one sWitch associated With the second display panel so that an individual can selectively page through the available information from the display.
Another example includes a remote signaling device that alloWs an individual, such as a mechanic, to select the contents of the display.
The various features and advantages of this invention Will become apparent to those skilled in the art from the folloWing detailed description of the currently preferred embodiment. The draWings that accompany the detailed description can be briefly described as folloWs.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 schematically illustrates a passenger conveyor system incorporating a display designed according to an embodiment of this invention.
FIG. 2 diagrammatically illustrates an example display arrangement designed according to an embodiment of this invention.
FIG. 3 illustrates another example arrangement designed according to this invention.
FIG. 4 illustrates another example embodiment of a display device designed according to this invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shoWn in FIG. 1, a passenger conveyor 20 includes a plurality of steps 22 that move in a selected direction betWeen landings 24 and 26. The illustrated conveyor is an escalator, hoWever, this invention is not limited only to escalators. Moving WalkWays and other types of passenger conveyors are Within the scope of this invention.
The steps 22 move in a conventional manner to carry passengers betWeen the landings 24 and 26, Which are at opposite ends of the escalator. A handrail 28 moves in a conventional fashion With the steps 22 to provide a handle to stabilize passengers on the escalator. A conventional escalator support structure 30 at least partially covers over some of the operating components of the escalator system in a conventional manner.
Handrail entry modules 32 are positioned on opposite sides of the steps at each landing. In this example, each module 32 includes a generally vertical surface 34 having an opening 36, Which provides the handrail entry. A support surface 38 extends generally doWn and out from the vertical surface 34 betWeen the corresponding landing and the vertical surface. In the illustrated example, the surface 38 is at least partially arranged at an oblique angle relative to the landing. In the particular examples of FIGS. 2 and 3, the surface 38 is rounded or at least partially curvilinear. The position angles and shapes of the surfaces 34 and 36 can be varied to meet the needs of a particular situation. Given this description, those skilled in the art Will be able to select What provides them an intended result.
A display 40 is supported by the module 32 and in this example is generally aligned With the support surface 38. The display 40 provides a visible indication of the direction of traffic floW of the escalator. A variety of indicators may be provided on the display 40, depending on the selection of equipment to provide the display. One example indicator is an arroW pointing in the direction of traflic floW. Another example indicator is the Word “UP” or the Word “DOWN”