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Publication numberUS3365072 A
Publication typeGrant
Publication dateJan 23, 1968
Filing dateOct 1, 1965
Priority dateOct 1, 1965
Publication numberUS 3365072 A, US 3365072A, US-A-3365072, US3365072 A, US3365072A
InventorsHill Lowell S
Original AssigneeLowell S. Hill
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable collapsible stand
US 3365072 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Jan. 23, 1968 L. s. HILL PORTABLE COLLAPSIBLE STAND Filed Oct. l, 1965 FIG 3 FIG 5 INVENTOR j LOWELL HILL ATTY United States Patent O 3,365,072 PRTABLE COLLAPSIBLE STAND Lowell S. Hill, 800 Judson Ave., Evanston, Ill. 60202 Filed Oct. 1, 1965, Ser. No. 492,234

7 Claims. (Cl. 211-149) The improved portable collapsible stand comprising the present invention has been designed for use primarily as a personalized and readily set up on floor or table lectern facility for supporting lecture notes and material by lecturers, clergymen, salesmen and other speakers, including papers, writing materials and small models in an orderly fashion for reference purposes when required. The stand can -be used also as a table for writing when lmaking notes or as a clip board to secured articles thereon against loss when the stand is used outdoors. The invention is capablel of other uses and, if desired, with or without rearrangement as capable of other uses and, if desired, with or without rearrangement as required, may be employed as a display stand, an easel, a rack, or hanger along with other uses too numerous to mention. lrrespective, however, of any particular use to which the invention may be put, the structural features thereof are at all times preserved.

Due to the versatility of the present portable, collapsible stand, the objects of the invention are manifold and principal among them are the provisions of a light stand which is readily erected and dismantled, quite stable in use even when subjected to heavy loads, and is easily moved or shifted from place to place during a lecture merely by gripping the top. These objects are attained by the provision of a two-piece separable frame structure having two foldable frame sections which can be used each as a separate unit, or one upon the other as a composite unit of upper and lower sections. The two sections, when assembled upon each other lend rigidly interrelated support, each for the other, so that collapsing of the stand under expected use is impossible. The two sections are, individually foldable for carrying or storage in a narrow space and the upper section is foldable in only one direction so that when it is in its extended condition the lower section may be dispensed with and the upper section supported upon a table top, for example, Where it may serve as a table lectern, the effective height of which, when added to the height of the table, is appropriate for close visibility of lecture material by a standing lecturer.

A further object of the present invention resides in the provision of a lectern or stand in which the effective height of a top panel member or platform associated therewith may readily be adjusted without necessitating adjustment of the composite sections, this being the case v whether both frame sections or only one frame section is in use. A similar and related object is to provide a stand in which the top panel member, in any adjusted position thereof, in etiect constitutes a mechanical rigidifying element of the composite unit and in combination with the adjacent frame links, defines a triangular relationship which secures the upper and lower sections with a frictional interlock that is easily established and released.

Still another object of the invention is to provide a portable foldable stand of the character described having a. novel arrangement of an adjustable open front compartment where articles are readily accessible to the lecturer below the lectern platform.

The invention provides a. portable stand or lectem arrangement which can be made of commercially available tube stock, sometimes referred to as thin wall, and veneer or pressed board stock, whereby the article m-ay be manufactured at a low cost; one which contemplates a minimum number of moving parts and is unlikely to get out ice of order; one which is readily understandable by those unskilled mechanically, for easy erection and dismantling; one which is of feather weight construction; one which may be folded into a flat thin package for purposes of shipment or storage and which consumes but little space so that it may conveniently be transported by carrying it substantial distances by one hand if need be; one which is attractive in its appearance and pleasing in its design; and, one which is well adapted to perform the -services required of it.

Other objects and advantages of the invention, not at this time enumerated, will readily suggest themselves as the following description ensues:

In the accompanying single sheet of drawings forming a part of this specification, one illustrative embodiment of the invention has been shown.

In these drawings:

FIG. 1 is a perspective view of a portable collapsible stand or lectern constructed according to the present invention and showing the same in its erected condition;

FIG. 2 is a partially exploded side elevational view of the stand, the enclosing curtain or apron associated therewith being removed in the interests of clarity;

FIG. 3 is a rear elevational View of the stand;

FIG. 4 is a side elevational view of the upper frame section, showing the same in use as a table-supported lectern;

FIG. 5 is an enlarged sectional view taken substantially on the line 5 5 of FIG. 2;

FIG. 6 is an enlarged sectional view taken substantially on the line 6-6 of FIG. 3; and

FIG. 7 is a perspective view of a stop bracket employed in connection with the present invention.

Referring now to the drawings in detail and in particular to FIGS. 1 and 2, a collapsible portable stand constructed according to the present invention has been shown in its composite erected condition and designated in its entirety at 10. Brietly, the stand 10 involves in its general organization a two-part sectional supporting framework comprised of an upper articulated section 12, and a lower articulated section 14. The two sections 12 and 14 are similar in their construction and each involves a pair of U-shaped frame members formed from lengths of tube stock.

The upper frame section 12 includes an outside U- shaped frame member 20 having parallel frame legs 22 and an interconnecting bight portion 24 (see also FIG. 4). It further includes an inner U-shaped frame member 26 having parallel frame legs 28 and an interconnecting bight portion 30. The frame legs 22 and 28 of the two sections are pivotally connected together medially of their ends by rivet-like pivot pins 32. Sheet metal stop brackets 34 (FIG. 7) are interposed between the adjacent legs 22 and 28 at their regions of crossing. The stop brackets are v generally of S-shape in cross section and include diagonally disposed cradle portions 36 which receive the legs 22 and 28 sidewise and limit the spreading movements of the frame members 20 and 26 to the approximate angle of which is shown in FIGS.v 2 and 4. The pivot pins 32 pass through Central openings 38 provided in the stop brackets 34.

The lower ends of the legs 22 and 28 are turned downwardly as at 40 (see particularly FIG. 4) to provide a series of four foot portions with the extreme lower ends of these foot portions 40 reduced as at 42 (FIG. 5) for a substantial portion of their terminal length. Elastomer foot plugs 44 are received telescopically in the foot portions 40 and are crimped in position as indicated at 46. As will be more fully described presently, the upper frame section 12 constitutes a support for an inclined lectern platform 50 and it is capable of'constituting the sole support for such platform, in which case it may be itself supported from a suitable elevated supporting structure such as the table top shown in FIG. 4 and designated at 52, as well as used in conjunction with the articulated lower frame section 14 as shown in FIG. 2 to maintain the lectern platform S at a proper elevation for use by a person in a standing position.

The lower frame section 14 includes an outside frame member 54 having parallel legs S6 and an interconnecting bight portion 58. The frame section 14 further includes an inside frame member 60 having parallel legs 62 and an interconnecting bight portion 64. The two frame members S4 and 60 are pivotally connected together in the manner previously described with respect to the pivotal connection between the frame members 20 and 26 of the upper frame section 12. In order to avoid needless repetition of description it is noted that the pivotal connection for the frame members 54 and 60 has been designated in its entirety at 68, and it includes a similar pair of stop brackets The lower frame section 14 is designed as a base support for the upper frame section 12 when the stand or lectern platform 50 is supported from a Hoor or ground surface rather than from an elevated table surface. Accordingly, the two sections 12 and 14 are capable of being arranged in vertical tandem relationship with the bight portions 58 and 64 being effectively supported on the floor or ground surface through the `media of respective pairs of elastomer sleeves 70 (FIGS. l, 2 and 3) which prevent sliding or skidding of the lectern as a whole and which surround the bight portions 58 and 64. The upper or distal ends of the legs 52 and 56 are turned upwardly as at 72 for alignment with the downturned por tions 40 (see also FIG. 5) and the open circular rims of these upturned portions telescopically receive therein the reduced extensions 42, together with their contained elastomer foot plugs 44.

The thus assembled framework of the stand is of a rigid nature, the insertion of the extensions 42 into the upper ends of the upturned portions 72 of the legs 56 and 62 serving to prevent collapse of the two articulated sections 12 and 14. The stop brackets 34 further serve to rigidify the structure. It is to be noted at this point that the extent of the legs 56 and 62 of the lower section 14 is uniform so that the upper ends of these legs terminate in the same horizontal plane. On the other hand, the extent of the legs 28 is somewhat less than the extent of the legs 22 of the upper section 12 so that the bight portion 30 lies in a horizontal plane below the horizontal plane of the bight portion 24. The general plane of the lectern platform 50 is thus substantially an inclined plane as supported on the two bight portions 24 and 30.

As best seen in FIGS. 1, 2 and 4, the lectern platform 50 is in the form of a generally rectangular panel of a suitable sheet material such as pressed wood, plywood, iiberboard or the like. If desired, it may be made of a lightweight metal, such as aluminum. The lower longitudinal edge region of the panel is turned upwardly to provide a retaining flange 80 for preventing sliding or rolling of small articles from the platform. The underneath surface of the platform has suitably secured thereto a series of four pairs of resilient retaining snap clips 82 (FIGS. 1 and 6), each clip being in the form of a length of a narrow strip of spring vmaterial providing an arcuate cradle portion 84, suspension legs 86, and lateral anchoring flanges S8 which are secured to the platform S0 by rivets 90, or the like. The clips of each pair are longitudinally aligned and the distance between clips which are once removed from one another in the transverse direction of the platform are spaced apart a distance preferably a little greater than the center-to-center distance between the two parallel bight portions 24 and 30. The clips 82 are designed for selective application to these bight portions 24 and 30 by the simple expedient of pressing them downwardly so that the cradle portions 84, which are in the form of major circle sectors, will snap into position on the bight portions. Since in the exemplary form of lectern platform S0 there are four such pairs of attachment clips 82, two positions of the lectern platform in the lectern assembly are possible. When the first and third pair of clips 82 (as viewed from left to right in FIGS. 2 and 4) are clipped onto the bight portions 24 and 3ft, the lectern platform 50 will assume a raised inclined position wherein the lectern as a whole is at its maximum height. When the second and fourth clips 82 are attached to the bight portions 24 and 30, the platform 50 will assume a lesser height. In either position of the platform 50, the inclination thereof will remain the same.

In both instances, however, the wider spacing of the clips spread the bight portions more widely than would be their spacing under resting conditions with the reductions 42 of the upper section disposed in the upper ends 72 of the lower section 14. This wider spacing of the bight portions 30 and 24 induced by the space of the clips when attached tends to cock the telescoping elements 42 and 72 with respect to each other and places a frictional strain thereon which interlocks them sufficiently for them to be lifted as a unit by gripping the upper section 12, or the platform S0, thus effectively unitizing the assembly of portions for handling as though it were integrally formed.

The lectern of the present invention is provided with a removable compartment-forming panel structure 85 which, when in position on the framework of the lectern, also establishes a shelf immediately beneath the platform Si). The panel structure may be formed of a suitable pressed board material and in its iiat condition it is in the form of a rectangular sheet having a crease or hinge line 87 extending thereacross. The hinge line 87 divides the panel structure into a shelf section 89 and a rear wall section 91. A hook-like suspension bracket 92 is secured to the rear wall section 91 and is adapted to be hooked over the bight portion 24 of the frame section 12. The forward edge region of the shelf section 89 is adapted to 4be loosely supported on a transverse strut member 94 (FIGS. 1 and 2) which extends between the legs 22 of the frame member 12, the strut member being provided with U-shaped attachment clips 96 at its opposite ends by means of which the attachment may be effected at any desired elevation. When the strut member is in position, the suspension bracket 92 may be hooked over the bight portion 24 and the forward edge region of the shelf section 89 caused to rest upon the strut member 94, whereupon the rear wall section 91 will extend substantially vertically while the shelf section 89 will assume a slightly inclined position, depending upon the particular elevation of the strut member 94. The strut member may be so positioned that the inclination of the shelf section 89 will be the same as the inclination of the lectern platform S0. Since the panel structure 85 is associated only with the upper frame member 12 and has no connection to the lower frame member 14 whatsoever, it is useable with the lectern when the upper frame member is supported on a table top as shown in FIG. 4 or when it is supported from the floor or ground as shown in FIGS. l and 2. Obviously, the stand or lectern 10 is capable of use either with or without the application thereto of the panel structure S5 and when the latter is not required, it may conveniently be folded and stored in an out-of-the-way position.

As shown in FIG. l, a further auxiliary adjunct to the stand or lectern 10 in the form of a back and side drape 98 may be provided if desired. This drape is in the form of a rectangular shee-t of a suitable fabric, such as velvet, when the lectern is to be employed as a pulpit lectern. Various drapery fabrics are suitable for forming the drape 98. The drape 98 may be secured to the framework in any suitable manner as for example by the use of conventional drapery pin hooks which may be applied to the bight portion 24 of the upper section 12 and by the use of single pin hooks at the upper corner regions of the sheet material which may be attached to the bight portion Sti. The drape 98 may extend from the platform 50 downwardly to the extreme lower regions of the framework where its lower edge is substantially coincident with the oor or other supporting surface.

The collapsed condition of the lectern has not been illustrated herein but it is believed that it is obvious that when the platform Sil is removed to release the interlocking strain at the telescoping elements 42 and 72, the upper frame section 12 is then separated from the lower frame section 14, both of these sections are then capable of being individually collapsed by the simple expedient of swinging the respective U-shaped frame members about their pivotal axes so as to 'bring the same into substantial coincidence with the inner frame members being `disposed substantially within the contines of their associated frame members. The panel structure 85, together with the two collapsed frame sections, as well as the strut 94 may then be nested within a relatively small space for purposes of storage.

The invention is not to be limited to the exact arrangement of parts shown in the accompanying drawings or described in this specification as various changes in the details of construction may be resorted to without departing from the spirit of the invention. Therefore, only insofar as the invention has particularly been pointed out in the accompanying claims, is the Same to be limited.

What is claimed is:

1. A collapsible portable stand designed for use as a lectern or the like and comprising: a framework including upper and lower frame sections comprised of tubular stock, each section being comprised of similar U-shape frame members having parallel side legs and an interconnecting bight portion, the distance between the side legs of one frame member being slightly less than the distance between the side legs of the other frame member whereby the frame mem-bers may iit together in nested relationship, pivot pins connecting the adjacent side legs in the medial regions thereof lwhereby the pivoted members may be swung relative to each other between a substantially collapsed position and a wide-angle extended position, the distal end regions of all of said Side legs being turned laterally out of the planes of the respective side members and extending vertically and in parallelism when the sections are in their extended positions, said distal end regions of all of the side legs of one of said frame sections being provided with reduced extensions which are removably and telescopically received within the distal end regions of the side legs of the other frame section whereby the upper frame section is supported from and overlies the lower frame section, the effective length of all of the side legs of the lower frame section being equal and the length of the side legs of one frame member of the upper frame section `being greater than the length of the side legs of the other frame member of said latter frame section whereby the bight portions of the upper frame section assume different heights, and a lectern platform removably secured to said bight portions of the two frame members, bridging the distance therebetween, and overhanging at least one of said bight portions.

2. A collapsible portable stand designed for use as a lectern or the like and comprising: a framework including upper and lower frame sections comprised of tubular stock, each section being comprised of similar U-shape frame members having parallel side legs and an interconnecting bight portion, the distance between the side legs of one frame member being slightly less than the distance between the side legs of the other frame member whereby the frame members may t together in nested relationship, pivot pins connecting the adjacent side legs in the medial regions thereof whereby the pivoted members may be swung relative to each other between a substantially collapsed position and a wide-angle extended position, limit stop means for restraining the frame members of one of said frame sections in said wide-angle extended position, the distal end regions of all of said side legs 'being turn-ed laterally out of the planes of the respective side members and extending in parallelism when the sections are in their extended positions, said distal end regions of all of the side legs of one of said frame sections being provided with reduced extensions which are removably and telescopically received within the distal end regions of the side legs of the other frame section in said wide angle extended position whereby the upper frame section is supported from and overlies the lower frame section, the effective length of all of the side legs of the lower frame section being equal and the length of the side legs of one frame member of the upper frame section being greater than the length of the side legs of the other frame member of said latter frame section whereby the bight portions of the upper frame section `assume diffe-rent heights, and are spaced a predetermined distance by said limit stop means, a lectern platform removably secured to said bight portions of the two frame members, bridging the distance therebetween, and engaging them at a distance different from said predetermined distance to cock the telescoping distal end regions and impose an interlocking fri-ctional strain therebetween.

3. A collapsible portable stand designed for use as a lectern or the like and comprising: a framework including a pair of similar U-shaped frame members each having a pair of substantially parallel side legs and an interconnecting bight portion, the distance between the side legs of one frame member being slightly less than the distance between the side legs of the other frame member whereby the side legs of one frame member may fit partially crosswise and interiorly of the other frame member, pivot pins connecting the adjacent side legs of the two frame members in the medial regions thereof whereby the thus pivoted members may be swung relative to each other between a substantially collapsed position with the bight portions together and a wide angle resting position wherein the bight portions are spaced a predetermined distance and the framework is in stable equilibrium when the distal ends of the side legs rest upon a supporting surface, the effective length of the side legs of one of said frame members being appreciably greater than the effective length of the side legs of the other frame member whereby the bight portions of the frame members assume different heights, stop means for supporting said frame members in their wide-angle resting position in weight bearing relation, a lectern platform, and means carried by said lectern platform removably securing the lectern platform to both of said bight portions of the two frame members to bridge the distance therebetween and overhang each of .said bight portions and forcing them from their predetermined spacing under strain upon the frame members to a working position of different spacing to rigidity the portable stand as a unit.

4. A collapsible portable stand designed for use as a lectern or the like and comprising: a framework including a pair of similar U-shaped frame members each having a pair of substantially parallel side legs and an interconnecting bight portion, the distance between the side legs of one frame member being slightly less than the distance between the side legs of the other frame member whereby the side legs of one frame member may tit partially crosswise and interiorly of the other fra-me member, pivot pins connecting the adjacent side legs of the two frame members in the medial regions thereof whereby the thus pivoted members may be swung relative toV each other between a substantially collapsed position with the bight portions together and a wide-angle position wherein the bight portions are spaced a predetermined distance and the framework is in stable equilibrium when the distal ends of the side legs rest upon a supporting surface, the effective length of the side legs of one of said frame members being appreciably greater than the effective length of the side legs of the other frame member whereby the bight portions of the frame members assume different heights, limit stop means for supporting said frame members in their wide-angle position in weight bearing relationship, a lectern platform bridging the distance between the two bight portions and overhanging each of said bight portions, and means carried by said lectern platform securing the lectern platform to both bight portions and holding said bight portions a different spaced distance from that determined by said limit stop means to strain the frame members and rigidity the assembly as a unit for manipulation by handling the platform.

5. A collapsible portable stand as set forth in claim 4, wherein said securing means comprises two pairs of trans- Versely aligned retaining clips mounted on the underneath side of said lectern platform which are selectively engageable with said bight portions of the frame members, said clips in cooperating pairs being spaced differently than the bight portions in their said relative positions and constituting also the means for removably securing the platform to the frame members in selected positions of vertical adjustment.

6. A collapsible portable stand designed for use as a lectern or the like and comprising: a framework including a pair of similar U-shaped frame members each having a pair of substantially parallel side legs and an inter connecting bight portion, the distance between the side legs of one frame member being slightly less than the distance between the side legs of the -other frame member whereby the side legs of one frame member may t partially crosswise and interiorly of the other frame member; pivot -pins connecting the adjacent side legs of the two frame members in the medial regions thereof whereby the thus pivoted members may be swung relative to each other between a substantially collapsed position with the bight portions together and a wide-angle position wherein the bight portions are spaced a predetermined distance and the framework is in stable equilibrium when the distal ends of the side legs rest upon a supporting surface, the effective length of the side legs of one of said frame members being appreciably greater than the effective length of the side legs of the other frame member whereby the bight portions of the frame members assume different heights; limit stop means maintaining said frame members in said wide-angle position comprising a second framework detachably connected to the iirst mentioned framework and having pairs of opstanding members in interconnecting relationship with the lower ends of said frame members of the first framework in said wide-angle 4positions in weight supported relationship, and means engaging one of said frameworks to hold the pairs of members of one of said frameworks in said wide-angle position in weight supporting relationship; a lectern -platform removably bridging the distance between the bight portions of the first two frame members and overhanging each of said bight portions; and means removably securing the lectern platform to said bight portions of the lirst two frame members at a spaced distance different from that of said relative positions determined by said limit stop means, said lectern platform, securing means and upstanding members interacting to strain said members from said wide-angle position to frictionally strain and rigidity said interconnecting relationship and unitize the assembly for manipulation by handling the platform.

7. A collapsible portable stand designed for use as a lectern or the like and comprising: a framework including a pair of similar U-shaped frame members each having a pair of substantially parallel side legs and an inter- `connecting bight portion, the distance between the side legs of one frame member being slightly less than the distance between the side legs of the other frame member whereby the side legs of one frame member may t partially crosswise and interiorly of the other frame member, pivot pins connecting the adjacent .side legs of the two frame members in the medial regions thereof whereby the thus pivoted members may be swung relative to each other between a substantially collapsed position and a wide-angle position wherein the frame work is in stable equilibrium when the distal ends of the side legs rest upon a supporting surface, the effective length of the side legs of one of said frame members being appreciably greater than the effective length of the side legs of the other frame member whereby the bight portions of the frame members assume different heights, a lectern platform removably secured to said bight portions of the two frame members, bridging the distance therebetween and overhanging each of said bight portions, a rigid stmt member extending between the side legs of one of said frame members, below the level of said pivot pins, and a sectional panel including a shelf section and a back wall panel hingedly connected together along mating edges, the distal end or' said back wall panel being removably secured to one of said bight portions and the distal end region of said shelf panel being removably supported on said rigid strut member.

References Cited UNITED STATES PATENTS 2,458,621 1/1949 Miller 248-188-9 X 2,837,391 6/1958 Clark 108-119 X 2,957,736 10/1960 Olander et al 10S-119 X 3,080,202 3/1963 Franzene 10S-119 X 3,134,192 5/ 1964 Huifer 10S-119 X FOREIGN PATENTS 1,197,165 6/1959 France.

ROY D. FRAZIER, Primary Examiner.

CHANCELLOR E. HARRIS, Examiner.

W. D. LOULAN, Assistant Examiner.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4138952 *Jun 10, 1977Feb 13, 1979Hodson Hollis CCollapsible tea table system
US4262606 *Jan 2, 1979Apr 21, 1981Hodson Hollis CConvertible folding tables
US5417168 *Oct 15, 1993May 23, 1995Ino-Products Inc.Folding table
US5480119 *May 11, 1994Jan 2, 1996Pierce Companies, Inc.Portable podium
US5573590 *Mar 24, 1995Nov 12, 1996Ino - Products, Inc.Folding table
US5603267 *May 16, 1996Feb 18, 1997Ino-Products Inc.Folding table
US6213555 *Jul 20, 2000Apr 10, 2001Dennis D. SulpizioAdjustable angle chaise lounge construction
EP1312282A1 *Mar 20, 2002May 21, 2003Narciso ZamboniCollapsible reading desk with size compaction means
Classifications
U.S. Classification211/149, 248/457, 248/464, 108/116, 312/5
International ClassificationA47B19/00, A47B43/00, A47B19/06, A47B43/04
Cooperative ClassificationA47B43/04, A47B19/06
European ClassificationA47B43/04, A47B19/06