Abstract:
An apparatus for changing the orientation of a control panel of a scanning system to provide maximum convenience according to the orientation of the scanning system on a desktop surface. The apparatus comprises a circular control panel rotatably mounted within the main case of the scanning system, together with one or more spring-loaded mechanisms serving to lock the rotatable control panel module in a position set by an operator.

Description:
FIELD OF THE INVENTION 
     The present invention relates in general to scanning systems. More particularly, the present invention is directed to an apparatus for selectively changing the orientation of a control panel on a scanning system according to the operational position of the scanning system on a support surface. 
     BACKGROUND OF THE INVENTION 
     Currently available scanning systems typically include a control panel which is fixed in a predetermined orientation. Unfortunately, depending upon factors such as the size, configuration, and location of the surface on which the scanning system is supported, the control panel may not be disposed in a readily accessible location. As a consequence, an operator of the scanning system may be forced to assume an awkward body position to view and manipulate the components of the control panel. 
     SUMMARY OF THE INVENTION 
     The present invention provides an apparatus for changing the orientation of a control panel on a scanning system to provide for maximum convenience according to the orientation of the scanning system on a support surface. A spring loaded mechanism and a plurality of appropriately located indents allow an operator to rotate the control panel between predefined limits of rotation. 
     The control panel is normally positioned in an orientation defined by one or more of the indents. To change the orientation, the operator presses down against the panel, moving it out of the indent(s). The panel can then be rotated to a new orientation. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The features of the present invention will best be understood from a detailed description of a preferred embodiment thereof selected for the purposes of illustration and shown in the accompanying drawings, in which: 
     FIG. 1 illustrates a prior art scanning system having a fixed control panel; 
     FIG. 2 shows a first orientation of a scanning system having a rotatable control panel; 
     FIG. 3 shows a second orientation of a scanning system having a rotatable control panel; 
     FIG. 4 shows a top view of a rotatable control panel according to the invention; and, 
     FIGS. 5 and 6 provide cross-sectional side views of the rotatable control panel of FIG. 4. 
    
    
     DETAILED DESCRIPTION OF INVENTION 
     In FIG. 1, a prior art scanning system 10 is configured for the scanning of a reflective original 12. The reflective original 12 is placed with the surface 14 containing the image 16 to be scanned facing down on a transparent scanning surface 18, and held in place by a cover 20. The surface is illuminated from below by lamps 22, producing a scan line 24. The scanning optics and sensor electronics are located in a scan module 26, which is driven together with lamps 22 to move the scan line 24 across the length of the original 12, thereby scanning the original 12 to produce a digital representation thereof. The cover 20 is pivotally secured on one side to the main body of the scanning system 10 via a hinge mechanism (not shown), allowing the cover 20 to be raised and lowered as indicated by directional arrow 28 to position one or more reflective originals 12 on the transparent scanning surface 18. The scanning system 10 is controlled via a fixed control panel 30 having a plurality of control items 32, typically comprising a combination of function selector buttons and displays. 
     FIGS. 2 and 3 show two orientations of the scanning system 10, wherein the fixed control panel 30 has been replaced with the rotatable control panel 40 of the present invention. In FIG. 2, the scanning system 10 is placed with the longer side essentially parallel to an edge of a support surface 42, hereinafter assumed to be a desktop. An operator 44 accesses the scanning system 10 for the purpose of positioning material to be scanned on the transparent scanning surface 18, and for the setup and control of the scanning system using the rotatable control panel 40. In FIG. 3, the same scanning system 10 is positioned with the longer side essentially perpendicular to an edge of the support surface 42. In this example, the rotatable control panel 40 has been rotated (directional arrow R) to have the same orientation relative to operator 44 as in the example of FIG. 2. As described in greater detail with reference to FIGS. 4 and 5, rotation of the rotatable control panel 40 is accomplished by pushing down on the panel and rotating it to a desired angular position, with spring loaded indents used to define the most commonly used orientations (e.g., 0°, 45°, 90°, etc.). Although the scanning system orientations of FIG. 2 and FIG. 3 are the most frequently used, other orientations are possible as determined by operator workspace requirements. Accordingly, the rotatable scanner panel 40 can be rotated to any convenient operational position. 
     FIG. 4 shows a detailed top view of one possible embodiment of the rotatable control panel 40. In this example, the rotatable control panel 40, again containing an array 46 of control items 32, can be rotated through a range 48 between limit stops 50 and 52 corresponding to indents 54 and 56, respectively. An intermediate indent position 58 is also shown. A corresponding set of symmetrically disposed indents 54&#39;, 56&#39;, and 58&#39; are also provided. A cross-sectional view of this embodiment, with the rotatable control panel 40 locked at limit stop 50 via indents 54 (and 54&#39;), is illustrated in FIG. 5. 
     In FIG. 5, the rotatable control panel 40 is held against the top surface of the scanning system 10, within indents 54 and 54&#39;, by a pair of spring loaded mechanisms 60 each comprising bearings 62 and 64 and spring 66. As shown, bearings 62 are forced into indents 54 and 54&#39; by springs 66. In FIG. 6, the panel 40 is rotatably positioned between indents 54 and 56. In this position, the bearings 62 are again forced against the top surface of the scanning system by springs 66, albeit not within one of the indents. To rotate the control panel 40, an operator applies a downward force against the panel to counteract the upward bias of the spring loaded mechanism, thereby freeing the bearings 62 from against the top surface of the scanning system. 
     The rotatable control panel 40 is connected electronically to control electronics 70 using a flexible cable 72 and connector 74. The flexible cable 72 permits the free rotation of the rotatable control panel 40 within the range 48 established by limit stops 50 and 52 (see FIG. 4). 
     The foregoing description of the present invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. Such modifications and variations that may be apparent to a person skilled in the art are intended to be included within the scope of this invention as defined by the accompanying claims.