a preferred embodiment of the overhead cigarette merchandising unit of this invention is illustrated in fig1 through 4 . the unit , indicated generally at 101 in fig1 is shown mounted on counter 102 . the unit is supported by upright posts 103 , 104 attached to respective cross - pieces 105 , 106 . telescoping extensions 107 of the cross - pieces provide greater stability , but can be retracted to reduce bulk during shipment or other movement of the unit . uprights 103 , 104 are braced at the top by cross - beam 108 . the main body of the unit is enclosure 109 , shown in its uppermost position , and shown also in phantom at 110 near its lowermost position . the enclosure has a front panel 111 , which faces the customers , a top panel 112 , a bottom panel 113 , a left side panel 114 , and a right side panel ( not shown ). front panel 111 can carry advertising or other messages , as indicated generally at 115 . the rear of enclosure 109 is shown in fig2 . top panel 112 , shown here in greater detail than in fig1 is seen to be composed of three panels 201 , 202 , 203 , separated by ribs 204 , 205 . the enclosure is seen to contain , in this embodiment , nine cigarette pack trays 301 - 309 , shown more clearly in fig3 . each tray shown has nine channels 206 for receiving rows of cigarette packs . each channel illustrated has a capacity of fourteen packs 310 , for a total capacity for the unit shown of 81 × 14 = 1 , 134 packs of cigarettes . at the front of each channel is thumb notch 207 , which facilitates the removal of a cigarette pack 310 in the manner shown at 311 . trays 301 - 309 are supported on a shelf - like framework indicated generally at 312 . the rear of each tray in the upper and middle rows ( trays 301 , 302 , 304 , 305 , 307 and 308 ) rests on upper cross - member 313 or 314 , respectively , while the rear of each tray in the bottom row ( trays 303 , 306 , and 309 ) rests against member 323 of framework 312 . as can be seen in fig3 the trays are supported in an inclined position , with the front of each tray resting on one of the lower cross - members 315 , 316 , 317 . triangular stops 318 depend from the front of the bottom of each tray , retaining the tray against sliding out of the enclosure by engagement with the respective lower cross - member for that tray . the inclination of trays 301 - 309 provides gravitational feed of the cigarette packs . as a given pack is removed , as indicated at 311 , the remainder of the packs in that channel slide downward so that a new pack takes the place of the one that was removed . when a channel is empty , it is easily restocked by lifting the tray by means of handle 319 so that triangular stop 318 is moved out of engagement with the lower cross - member . the tray can then be lifted completely out of the enclosure for restocking , or can be drawn down to the position shown in phantom at 320 . in the event the latter option is selected , the rear of the tray rests on the lower cross - member during restocking , with safety stop 321 , which depends from the rear of the bottom of the tray , engaging the cross - member to prevent accidental slippage of the tray out of the enclosure . one of the primary advantages of the cigarette merchandising unit of this invention is its adaptability to varying height requirements , as dictated by both space limitations and personnel height . to provide adjustability to the physical limitations of a particular installation , uprights 103 , 104 can be fashioned from telescoping members such as box beams and provided with retaining means ( not shown ) so as to be capable of discrete height adjustments . further , if necessary , they can be mounted so that the unit can be suspended from the ceiling , although floor or counter mounting is preferred . for finer height adjustment in daily use after installation , such as at a shift change when the clerk on duty may be replaced by another of different height , a mechanism is provided allowing simple and convenient alteration of the height of the unit . the mechanism is illustrated in detail in fig4 which is a cross - sectional view of the interior of the right end cap 401 of enclosure 109 . an identical mechanism is found in the left end cap . the end cap is provided with ribs 402 , 403 defining a passage 404 through which upright 104 passes . to minimize friction , passage 404 is made wider than upright 104 , and is provided with spacers 405 , 406 , 407 to maintain upright 104 in proper alignment . a gear rack 408 is provided on the rear face of upright 104 for engagement with pinion gear 409 , which is journalled adjacent to passage 404 . a similar rack and pinion arrangement is found on the left side of the unit at 116 . the respective pinion gears 409 are joined by an interconnecting shaft 322 which passes through shelf cross - member 316 , as shown in fig3 . shaft 322 is fixedly connected to each of the pinion gears 409 so that the gears rotate in unison . the gears are rotated manually by crank 410 , which is removable and is preferably connected to pinion gear 409 only when it is desired to operate the mechanism . crank 410 can be connected at either end of enclosure 109 , although shown in both fig1 and fig4 on the left side . rotation of crank 410 in the direction shown by arrow 411 will lower the enclosure 109 to the position shown in phantom at 110 , and lower , to the extent that the length of gear rack 408 will allow . rotation in the opposite direction will raise the enclosure . interconnecting shaft 322 is needed to insure that both ends of the enclosure move simultaneously , to prevent jamming of the unit . means are provided to retain enclosure 409 at any height selected . these means include , first , coiled flat springs 412 , 413 attached to upright 104 at 414 and 415 respectively , and wound on self - lubricating bobbins ( not shown ) journalled for rotation on shafts 416 , 417 . springs 412 and 413 , which wind and unwind inside partial shields 418 , 419 , along with identical springs in the left end cap attached to upright 103 , are chosen to have a restoring force equal to the weight of enclosure 109 when fully loaded with cigarettes . in that way , regardless of the height selected , the weight of the unit is exactly counterbalanced by the pull of the springs , so that it remains in that position . in addition , movement of the enclosure will require only enough force to overcome the friction within the lift mechanism . however , as cigarettes are sold , and the unit becomes lighter , it will tend to rise under the influence of the springs , and downward adjustment of the height of the enclosure will require extra force to overcome the upward bias of the springs . therefore , additional retaining means are provided in the form of locking slides 420 , 421 on the left and right sides , respectively , of enclosure 109 . during movement of the unit , these slides , accessible from the outside of the enclosure , are kept at the position in which slide 421 is shown in fig4 . after the desired height has been selected , slide 421 is moved downward along slot 422 , until tongue 423 engages the teeth of pinion gear 409 , preventing the rotation thereof , thereby locking the enclosure at the selected height . slide 420 functions similarly on the left side of the enclosure . longer enclosures can be accommodated according to this invention by providing additional upright supports at selected locations along the length of the enclosure . in such an embodiment , each such additional support should have associated with it a mechanism as described above , with all of the mechanisms linked by interconnecting shafts such as shaft 322 . the preferred material for the panels of enclosure 109 is medium impact styrene plastic , although any material commonly used for retail displays will suffice . the gears and associated parts are preferably formed of acetal plastic , while the trays are preferably formed from a transparent k - resin plastic , but here again any commonly used material will function equally well . the upright supports should be able to sustain the entire weight of the unit , and should , therefore , be made of a material capable of bearing a significant load , such as stainless steel or chrome plated mild steel . the coiled springs are by their nature limited to a material of suitable strength and elasticity , such as spring steel . the cigarette merchandising display as described is versatile in its adaptability to changing physical constraints . it is also attractive and distinctive in appearance , presenting a profile quite different from those of the prior art . by angling off the corners of the enclosure , unused air space that would be inside the enclosure in other displays is eliminated , presenting a less bulky appearance and allowing more light to reach the counter area . the front face of the enclosure can carry advertising or other messages , or backlit displays , or can be left blank . it will therefore be seen that this invention provides a distinctive and attractive overhead cigarette merchandising display which can be adjusted to any one of an infinite number of selected heights . it should be understood that the embodiment described herein is meant to be illustrative only , and that other adaptations are possible within the scope of the invention , which is to be limited only by the claims below .
an overhead retail merchandising display for cigarettes is provided . the height of the display is continuously adjustable to the varying heights of store personnel . the display is distinctive and attractive in appearance , while at the same time being simple to construct and operate . it is supported by generally upright posts which preferably telescope so that they can be adjusted to the height requirements of a given installation . for finer adjustment to the height of store personnel , it is provided with a mechanism for raising and lowering it on the upright posts and retaining it in any selected position .