US3244127A - Cantilever shelving - Google Patents

Description

April 5, 1966 R. J. EVANS 3,244,127

CANTILEVER SHELVING Filed Dec. 26, 1963 5 Sheets-Sheet 2 INVENTOR. ROBERT J. EVANS AT TORN EYS April 5, 1966 R. J. EVANS 3,244,127

GANTILEVER SHELVING Filed Dec. 26, 1963 3 Sheets-Sheet 5 lo 0: /3 I -27 ,4264 Z4 FIG. IO

INVENTOR.

ROBERT J- EVANS ATTORNEYS United States Patent Office 3,244,127 Patented Apr. 5, 1966 3,244,127 CANTILEVER SHELVING Robert J. Evans, Aurora, 111., assignor to Aurora Equipment Company, Aurora, 11]., a corporation of Illinois Filed Dec. 26, 1963, Ser. No. 333,300

' 2 Claims. (Cl. 108-408) The present invention relates to cantilever shelving such as can be used in a library bookstack. The invention is further concerned with a new and improved supporting structure for securing the components of the shelving in rigidified assembly.

In the past, one of the weaknesses of cantilever book shelving has been that the structure is wobbly and sway braces have been required to rigidify the shelving. These sway braces are very often as heavy as /8" rods arranged in the shape of an X at the rear of the shelving. These sway braces are also unsightly and on occasion prevent larger books from being pushed through the shelves when the shelves are disposed at the same level on opposite sides of the rack.

According to one of the important features of this invention, a new supporting structure has been developed for securing'the components of the shelving in rigidified assembly which eliminates the need for the unsightly and cumbersome sway braces previously employed.' By developing a new and improved library bookstack having thenew supporting channel structure, the appearance of thebookstack has been materially improved.

Inview of the foregoing, an important object of this invention is to provide a new and improved library bookstack of the cantilever type which eliminates the necessity of sway braces.

Yet another object of this invention is to provide a new and improved cantilever book shelving structure which can be assembled and disassembled with a minimum of effort and which can be more economically manufactured without any sacrifice in the strength of the bookstack.

According to other important features of this invention, a new and improved leveling means has been provided for leveling the bookstack on a floor surface.

Still another important feature of this invention is to provide a new and improved shelf structure for the bookstack enabling the shelf and books carried thereon to be lifted from the bookstack and reattached to the bookstack at some other position, as is desired.

According to still other important features of this invention, a new and improved supporting sturcture has been. provided which structure comprises a base channel having base and side legs with the base leg being shorter in length than the side legs providing recessed areas at opposite ends of the base legs between the side legs. The supporting structure further includes upright channels which are disposed in the recessed areas at opposite ends of the channels with the upright channels each having upright base and side legs. The upright side legs of the upright channels are joined by any suitable means with the opposite ends of the side legs of the base channel in unitary assembly.

According to further important features of this invention, the vertical posts or columns of the bookstacks are adapted to be engaged within the upright channels and secured therewith. The bookracks or shelves are then suspended from the upright posts or columns.

According to still other importantfeatures of this invention,.the racks include end brackets having shelf support hooks or channels and dimples which fit into the shelf so that if the shelf is pushed down into the shelf support hooks'or channels, the entire shelf assembly including the end brackets in the shelf can be lifted with books and attached at any desired position on the vertical posts or columns of the bookstack.

Other objects and features of this invention will more fully become apparent in view of the following detailed description taken in conjunction with the accompanying drawings illustrating therein a single embodiment and in which:

On the drawings:

FIGURE 1 is a perspective view of a library bookstack embodying important features of this invention;

FIGURE 2 is an enlarged fragmentary perspective view with certain components removed for illustrating the coaction of the remaining elements of the structure;

FIGURE 3 is an enlarged fragmentary partially sectioned perspective view of a shelf for the bookstack;

FIGURE 4 is an enlarged fragmentary perspective view of a base supporting structure for the bookstack that embodies important features of this invention;

FIGURE 5 is a side elevation of a bookrack end bracket;

FIGURE 6 is an an end view of the bracket shown in FIGURE 5;

FIGURE 7 is a fragmentary plan view of the base supporting structure or units illustrating the manner of coaction with vertical columns or posts of the bookstack;

FIGURE 8 is a fragmentary front elevation of the structure shown in FIGURE 7;

FIGURE 9 is an end view of a leveling bracket;

FIGURE 10 is a side view of the leveling bracket shown in FIGURE 9; and

FIGURE 11 is a perspective view partially in section illustrating the manner in which the leveling bracket is employed for leveling a bookstack.

As shown on the drawings:

The reference numeral 10 indicates generally a library bookstack of a type that can be readily assembled and disassembled in schools, libraries, homes, offices and the like. In order to economically manufacture the bookstack, the components are preferably made from sheet material such as steel although it is also conceivable that the bookstack could be made from certain types of synthetic plastics.

The bookstack 10 includes a series of posts 11 each having rows ofpost slots 11a. Each of theslots 11a is defined by a slot edge 11b. Mounted on a pair of the vertical posts on each bookstack 10 is an upper post 12. Mounted at lower ends of the vertical posts 11 is abase supporting structure 13 embodying important features of this invention which will be discussed in greater detail hereafter.

Also mounted on the vertical posts 11 arebookracks 14. These racks are preferably disposed in vertically spaced relation and can be attached to opposite sides of the posts 11 so that a single set of posts 11 can supportbookracks 14 from opposite sides to provide a cantileverrtype shelving structure. Each of thebookracks 14 includes a pair ofbookrack end brackets 15 and 16. Each bracket 15 has a series of bookrackend bracket hooks 16 which are adapted to be engaged in thepost slots 11a and retainingly secured with the slot edges 11b.

The brackets 15 are further provided with a shelf support hook or channel at its lowermost end and these hooks or channels comprise integral turned terminal edges or flange portions of the bracket 15. The hook or channel 17 is adapted to cooperate with ashelf 18 for suspending the shelf at opposite ends between a pair of the bookrack end brackets 15, 15.

Theshelf 18 has a channeled front shelf edge 18a for reinforcing the shelf along its length. Opposite ends of theshelf 18 are provided with angled shelf side flanges 18b, 1811 which are adapted to be engaged in the shelf sup- Within the channels 17 are a-series of inwardly projecteddimples 17a which provide means for locking the shelf side flanges 18b, 18b in assembly with the end brackets 15, so that theshelf 18 can be lifted together with the end brackets along with any books which might be on theshelf 18 to permit thebookrack 14 to be moved to an adjusted position and reattached to the posts 11. The space between the tipmost end of thedimples 17a and the bookrack. end, bracket 15 disposed adjacent thereto is slightly smaller than the width of the shelf side flange 18b so that when the shelf side flange 18b is engaged in the channel, these components will be tightly secured in assembly together. Depending on the dimension of the space between the tip end of thedimples 17a and the end brackets 15, and the width of the shelf side flange 18b, thehooks 16 can be -causedto be sprung slightly away from the bookrack end bracket 15 when the shelf side flange 18b is forced into the channel 17.

In order to provide an adequate support foundation for the bookstack 10, the bookstack is provided with a bookrack base, shelf assembly 9. These assemblies 19 project outwardly from, opposite sides of the posts at the bottom end of the posts 11 as shown in FIGURES 1 and 2. Each of the assemblies 1? includes a pair of bookrackbase end brackets 20, 29. Eachbracket 20 has anattachment flange 21 and fasteners 22 are provided for securing theattachment flange 21 with thesupport structure 13 as well as with the posts 11 to hold the components in assembly together. Eachbracket 20 is further provided with shelf support hooks orchannels 23, 23 and abase shelf 24, similar to theshelf 18 is secured therewith. Thehooks 23, 23 on theend brackets 20, 20 hold thebase shelf 24 in assembly therewith.

Thebase end brackets 20, 29 are also each provided with new and improved leveling means 25 embodying other features of this invention. The leveling means 25 includes anangled bracket 26 havingbracket legs 26a, 26a disposed at right angles to one another and merging at a common juncture 26b. Thebracket 26 is further provided with converging elongated bracket link slots 27, 27 which tendto converge on the juncture 26b. A pair of fasteners 28, 28 are provided for engagement in the link slots 27, 27 for attaching the levelingbracket 26 to thebase end bracket 20 and for attaching the leveling bracket to a floor F as shown in FIGURE 11. When it is desired to level the bookstack 10, and after the component parts of the bookstack have been assembled, the levelingbrackets 26 are, secured to thebase end brackets 26, 20 at outer ends, thereof remote from theattachment flanges 21. The bookstack 10 is then manually positioned so as to be level and thebracket 26 is moved on the fasteners 28, 28 so that thebracket 26 will be in a position to hold the bookstack 10 in the leveled position whereupon the fasteners 28 are tightly secured to hold the bookstack 10 in the leveled position. Excellent results will be obtained where one of the fasteners 28 comprises a stud bolt permanently welded to theend bracket 20. The levelingbracket 26 is slidable on this stud bolt 28. It will be appreciated that levelingbrackets 26 are disposed on opposite sides of the posts 11 so that the bookstack can be permanently secured in the aforesaid leveled position.

Thebase supporting structure 13, embodying important features of this invention, is comprised of abase channel 29 having a base leg 30 as well asside legs 31, 31. Thebase channel 29 is notched at opposite ends by. cutting away portions of the base leg 30 to form recessedareas 32, 32. It is in this manner that thebase channel 29 is formed withside legs 31, 31 having a greater length than thebase leg 39. Thebase supporting structure 13 further includes a pair ofupright channels 34, 34 each of an identical construction. Eachchannel 34 has abase leg 35 andside legs 36, 36. Theside legs 31, 31 on thebase channel 29 are suitably secured by welds or fasteners or adhesive with theside legs 36, 36 of theupright channels 34. In

addition, thechannels 29, 34, 34 are provided with attachment holes 37 and attachment fasteners such as bolts andnuts 38 are further provided for securing thebase supporting structure 13 with the vertical posts 11. When thebase supporting structure 13 is assembled with the posts 11, the posts 11 are engaged in the cavity or channel defined by theupright channel legs 35, 36, 36. Thefasteners 38 extend through theposts 11 as well as through the holes 37 for securing the base supporting structure in unitary assembly with the posts 11 as shown in FIGURE 2.

It will further be noted that when theupright channels 35 are secured in assembly with thebase channel 29 that thebase leg 35 of each upright channel is engaged in faceto-face relation with one of the outermost ends 3011 of the base leg 3%) (FIGURE 2). It is in this way that thebase legs 30 and 34 are disposed in normal or right angular relation with respect to one another. In order to further rigidity the assembly of thebase supporting structure 13 with the posts 11,additional fasteners 38 can be extended through theupright channel 34 for this purpose and as is shown in FIGURE 2.

. Thebookstack 10 can further be provided with abase plate 39 as is shown in FIGURE 1. Thisbase plate 39 is secured by means of fasteners 4i? to the base end brackets 2t), 2t) beneath thebase shelf 24.

Thebookracks 14 are further provided with abook stop plate 41 comprising a flat relatively narrow length of material that is joined by means of hooks 42' atopposite ends with the posts 11, 11. The hooks 42 are preferably of. the same general type provided on the end brackets 15 as shown at 16.

Excellent results have been obtained in the manufacture of a bookstack of the type shown at FIGURE 10 in the present drawings Where thechannels 29 and 34- are manufactured from a 16 or 18 gauge steel. Tests have further shown that wherebase supporting structures 13 are employed of the type herein disclosed, only onestructure 13 is required between every second or third set of posts 11. Between thebase supporting structures 13, a less expensive type of support can be joined with the vertical posts 11 for maintaining them in an upright position. Of course, if it is desired,.the base supporting structures can be joined with all of the posts 11. In any event, it is now possible to provide a rigiditied bookstack 10 without the necessity of attaching sway braces to the posts as has been the practice in the past.

Although minor modifications might be suggested by those versed in the art, it should be understood that I wish to embody within the scope of the patent warranted hereon, all such modifications as reasonably and properly come within the scope of my contribution to the art.

I claim as my invention:

1. A knockdown type stack comprising vertical and horizontal posts joined together and shelves suspended from the posts, supporting structures disposed in end-to-end relation each comprising a base channel including base and side legs with the base legs being shorter in length than the side legs providing recessed areas at opposite ends of the base leg between the side legs,

upright channels secured in assembly with said base channel and disposed in the recessed areas at opposite ends of the base channel with the upright channels at opposite ends of one of. said supporting structures confronting upright channels on adjacent supporting structures disposed on opposite ends thereof,

the upright and the horizontal channels comprising said supporting structures and cooperating together when said supporting structures are disposed in end-toend relation providing continuous uninterrupted vertical post holders extending transversely on opposite sides of the base leg and with a plurality of said vertical posts disposed in said holders at opposite ends of each of said supporting structures for ground engagement so as to function as columns, and

detachable means for securing the posts to said upright channels.

2. A library stack comprising vertical and horizontal posts joined together and shelves provided on the stack,

supporting structures disposed in end-to-end relation each comprising a base channel including base and side legs with the base legs being shorter in length than the side legs providing recessed areas at opposite ends of the base leg between the side legs,

upright channels of generally C-shaped cross-section secured in assembly with said base channel and disposed in the recessed areas at opposite ends of the base channel with upright channel legs secured with the base side legs in confronting assembly with the upright channels at opposite ends of one of said supporting structures confronting upright channels on adjacent supporting structures disposed on opposite ends thereof,

the upright and the horizontal channels comprising said structures and cooperating together when said supporting structures are disposed in end-to-end edgewise engagement providing parallel-sided post holders defining continuous uninterrupted openings and with a plurality of said vertical posts disposed in said openings in said holders at opposite ends of each of said support structures and with said vertical posts extended vertically on opposite sides of the base leg so as to function as columns, and

detachable means for securing the posts to said upright channels and for securing said supporting structures together.

References Cited by the Examiner UNITED STATES PATENTS 520,432 5/ 1894 Humphreys 248-1883 940,017 11/1909 Holden 108-108 2,643,170 6/1953 Vanderveld 211- 2,680,326 6/1954 Sultan 248-1884 2,790,559 4/ 1957 Stephanson et al 108-108 2,872,049 2/ 1959 Slater 108-108 2,901,124 8/1959 Gingher 108-111 2,916,153 12/1959 Saul 211-148 2,940,605 6/ 1960 Logie 211-148 3,018,900 1/1962 Huet 211-148 3,040,905 6/ 1962 Gingher 108-108 3,044,632 7/ 1962 Schild 108-92 3,067,882 12/1962 Ribbens 108-108 3,127,020 3/1964 Bibb 211-148 3,130,693 4/1964 Shell 248-250 X 3,132,609 5/1964 Chesley 108-106 FRANK B. SHERRY, Primary Examiner.

Claims (1)

1. A KNOCKDOWN TYPE STACK COMPRISING VERTICAL AND HORIZONTAL POSTS JOINED TOGETHER AND SHELVES SUSPENDED FROM THE POSTS, SUPPORTING STRUCTURES DISPOSED IN END-TO-END RELATION EACH COMPRISING A BASE CHANNEL INCLUDING BASE AND SIDE LEGS WITH THE BASE LEGS BEING SHORTER IN LENGTH THAN THE SIDE LEGS PROVIDING RECESSED AREAS AT OPPOSITE ENDS OF THE BASE LEG BETWEEN THE SIDE LEGS, UPRIGHT CHANNELS SECURED IN ASSEMBLY WITH SAID BASE CHANNEL AND DISPOSED IN THE RECESSED AREAS AT OPPOSITE ENDS OF THE BASE CHANNEL WITH THE UPRIGHT CHANNELS AT OPPOSITE ENDS OF ONE OF SAID SUPPORTING STRUCTURES CONFRONTING UPRIGHT CHANNELS ON ADJACENT SUPPORTING STRUCTURES DISPOSED ON OPPOSITE ENDS THEREOF, THE UPRIGHT AND THE HORIZONTAL CHANNELS COMPRISING SAID SUPPORTING STRUCTURES AND COOPERATING TOGETHER WHEN SAID SUPPORTING STRUCTURES ARE DISPOSED IN END-TOEND RELATION PROVIDING CONTINUOUS UNINTERRUPTED VERTICAL POST HOLDERS EXTENDING TRANSVERSELY ON OPPOSITE SIDES OF THE BASE LEG AND WITH A PLURALITY OF SAID VERTICAL POSTS DISPOSED IN SAID HOLDERS AT OPPOSITE ENDS OF EACH OF SAID SUPPORTING STRUCTURES FOR GROUND ENGAGEMENT SO AS TO FUNCTION AS COLUMNS, AND DETACHABLE MEANS FOR SECURING THE POSTS TO SAID UPRIGHT CHANNELS.

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