Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3159440 A
Publication typeGrant
Publication dateDec 1, 1964
Filing dateMar 14, 1963
Priority dateMar 14, 1963
Publication numberUS 3159440 A, US 3159440A, US-A-3159440, US3159440 A, US3159440A
InventorsCourtwright Robert M
Original AssigneeEducators Mfg Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cabinet wall panels and connecting means therefor
US 3159440 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Dec. 1, 1964 R. M. COURTWRIGHT 3,159,440


CABINET WALL PANELS AND CONNECTING MEANS THEREFOR 2 Sheets-Sheet 2 Filed March 14, 1963 INVENTOR. ROBERT M. GOURTWRIGHT BY j 95% ATTORNEYS United States Patent 3,159,448 CABINET WALL PANELS AND CUNNECTING MEAN TEEREFQR Robert M. Courtwright, Tacoma, Wash, assignor, by

mesne assignments, to Educators Manufacturing (J0mpany, Tacoma, Wash, a corporation of Caiifornia Filed Mar. 14, 1963, Ser. No. 265,255 5 Claims. (6!. 312-463) This invention relates to improvements in cabinet, bookcase, desk and table construction. More particularly, it relates to the fabrication of articles of manufacture wherein frame members of metal are combined with wall panels manufactured from wood products such as plywood, chipboard or various lightweight soft woods.

It is the principal object of this invention to provide articles of manufacture of the type or character of those above named, that may be shipped on a knocked down or flat panel condition, and later rigidly assembled at the point of use with a minimum of equipment and labor.

()ther objects and advantages of the invention reside in the specific details of formation of the frame members and in the grooving and cutting of their companion wall forming panels for their assembly and securement thereto.

Still further objects reside in the format-ionand application to the panels and frame members of novel holding clips that may be applied in such manner as to obtain and maintain the desired rigidity of construction and utility of the fabricated articles.

In accomplishing the above mentioned and other objects of the invention, I have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, wherein-- FIG. 1 is a perspective view showing, in a reduced scale, one form of cabinet or case embodying the present invention.

FIG. 2 is an enlargement, taken vertically through the 3,159,440 Patented Dec. 1, 1964 ice herein shown as employed particularly in the fabricating of such articles as desks, bookcases, tables and cabinets but can be advantageously employed for the building of book shelves and various forms of display cases. The box-like cabinet shown in FIG. 1 is typical of the various forms of articles embodied by this invention. Cabinet dimensions may be changed to suit requirements or desires without departing from the invention as herein set forth.

The rectangular article shown in FIG. 1 is one section or unit with an open front, that may or may not be a sembled with others of like kind. It comprises a metal frame structure made up of two channel-like, horizontal rails 1iliti' and two vertical end members or posts 1111 of like formation; these frame parts being shown to be joined at their ends in such manner as to define the rectangular front opening of the cabinet. Assembled with these frame members 10-10 and Il11' are opposite end wall forming panels 12 and 12'; a bottom wall panel 13; top wall panel 14- and a back wall forming panel 15, as best seen in FIG. 4. In the present instance, the channel-like nails illlltl and posts 11-11 are aluminum extrusions and the wall forming panels are of the material known in trade as chipboard which has been pressed to substantial solidity to give it the required durability and provide the necessary rigidity in the cabinet construction.

In the preparing of the various wall panels, those that are to form the top wall 14 and bottom wall 13 of the unit are rectangular and have the same dimensions of length and width. Also, each is formed completely across its forward edge portion, parallel with and equally spaced from its front edge, in the top and bottom surfaces thereof as best seen in FIG. 9, with square cut channels 16 and 16 and each of the forward corners of these panels are square notched, as at 17 in FIG. 9 by cutting out the forward edge or lip portion back to the inside edges of side wall panel as assembled with corresponding frame I members.

FIG. 4 is a horizontal sectional detail, taken on line 4-4 in FIG. 2, showing the assembled relationship of wall panels.

FIG. 5 is an enlarged sectional detail on line 5-5 in FIG. 1 showing the joining of frame members comprised in a front corner assembly.

FIG. 6 is an enlarged sectional detail on line 6-6, in FIG. 1, showing one of the anchoring means applied for joining the side wall panels to the back panels.

FIG. 7 is a cross-section on line 77 in FIG. 5, showing one of the locking clips as applied.

FIG. 8 is a perspective view of one part of a frame joining clip.

FIG. 9 is a perspective view showing an edge portion of a wall panel as prepared for the application of a metal frame member to its forward edge.

Referring more in detail to the drawings- The present use of metal frame forming members and manufactured wall panels of light weight materials, is

the two channels 116.

Also, across the rear'edge portion of the top surface of bottom panel 13, a channel 18 is cut and a like channel 153x is similarly cut in and across the bottom surface of the top panel 14, as in FIG. 4, for a purpose presently explained. Furthermore, the thickness of the forward portions of panels 13 and 14 are slightly reduced by planing off the top surface of the forward edge or lip of the top panel and the bottom surface of the lip of the lower panel for a purpose later apparent.

The forward edge lip of each of these two wall panels 13 and 14 is then equipped at each end adjacent the notched corner with an anchoring clip 20 designed for joining of the frame members. Each clip is formed from a flat strip of resilient sheet metal bent to the U-shaped formation shown best in FIG. 8, thus providing it with a pair of leg portions 2011-291) and a fiat base or end wall 200. The two leg portions of the clip have sharpened teeth 21 struck or punched inwardly therefrom and the base wall 200 is formed centrally with a bolt passing hole 22, as shown in the detailed view of FIG; 8.

In applying one of these securing clips 20 to the lip of a wall panel, the leg portions thereof are sprung slightly apartv and applied, as in FIG. 3, along opposite sides of. the lip portion of the panel, parallel with its f0rward edge and with the base end of the clip projecting across the corner notch and even with the end edge of the panel as in FIG. 3. The teeth 21 of paired legs are then pressed into the top and bottom surfaces of the panel lip.

A securing bolt 25 is then applied inwardly through the bolt hole 22 in the base of the clip and threaded into a lock nut 26 that is loc ted in position within the base end of the clip between the two leg portions as well shown in FIGS. 3 and 5.

The outer end portion of each bolt 25 is vertically channeled in opposite sides, as at 250 in FIGS. 3 and 5, thus to provide the bolt with an anchoring head 25x for a purpose presently to be explained.

After the clip members 26 of FIG. 8 have been applied to the ends of the lip edges, the frame rails iii it) are slipped endwise over the lips to their full lengths; the flanged edges of the rails being slidably received in the channels 1616' as shown in H6. 3. It is to be noted that these rails come flush with the end edges of the two panels.

The end rails or posts 11-11 are similarly applied to the forward lip edges of the wall panels 12 and 12' and brought flush at its ends therewith.

It will be understood, by the showing in FIG. 3, that when the rails and it) are slipped into position on the lip portions of the panels 13 and 14, they will tightly overlie the leg portions of the clips to press and hold their teeth 21 firmly on and against release from the panel lips.

The channel-like frame members 1tl10' and 11l1' are all of the same cross-sectional dimensions. Each has a flat base or bottom wall B and fiat opposite side walls SS at right angles to the bottom wall. The side walls have inturned flanges F at their edges that terminate in outturned flanges G. In applying the members 1111 to the forward edges of wall panels 12l2, the open side of each member is slipped endwise onto the lip portion with the flanges FG moving into and along the channels 16-16.

It is to be observed that the side walls of the frame members 11-11 are provided in their end portions with holes 19 for passing of the bolt heads x therethrough in the assembling of the frame members. This will presently be more fully explained.

After the frame members have been applied to the lip portions of the wall panels, the panels are assembled by bringing the panels into a joining relationship and projecting the head portions of the anchoring bolts 25 as secured in the clips 20x applied to the lip of the horizontal panel 14, into the upper end holes 19 of the vertical end frame members 1111', and likewise applying the heads of the anchoring bolts 25 of the clips as applied to the lip of the lower wall panel 13 into the lower end holes 19 of the end posts, and then securing the bolt heads 25x to the posts 11l1' by the application of holding clips into the open ends of the end posts to engage and lock with the bolt heads as seen in FIG. 5.

Each of the securing or holding clips 40 is of squared U-shape as shown best in FIG. 3 and is formed with a flat base wall 43b and parallel opposite side leg portions 41 that are adapted to be received snugly within the open ends of the channel-like posts between its side walls. Each leg 41 is formed with a slot 42 so positioned as to receive the neck portion of the anchoring bolt as extended into the vertical frame member through the side wall hole 19.

In the formation of the neck receiving slots 42 in the legs of the holding clips the metal of the leg is turned inwardly along the opposite edges of the slot to provide wedges 420 that will engage the bolt head 25x with drawing effect that pulls the end of the horizontal rail tightly against the side walls of the vertical rail 11. It is desirable, from the standpoint of appearance, that the holding clips 40 be pressed into the open ends of the rails 1111', as seen in FIGS. 5 and 7.

Before the final joining of wall panels 12-42, and 1314 the back wall panel 15 is positioned with its longitudinally top edge seated in the rear edge groove 18x of 4 the top wall panel 14 and its bottom edge seated in the groove 18 that is formed across the top surface closely adjacent the back edge of bottom wall panel 13.

Likewise, the opposite end edges of the back wall panel are engaged in grooves 30 formed in the inside surface of the side wall panels 12-12. After the Wall panels have thus been assembled, angle clips 50, as shown in FIGS. 2 and 6 are applied in the required number within the rear corner angles of the enclosure, and secured thereto by screws 51 applied through the wings of the clip and threaded onto metal sleeves 52 that are, in turn, threaded into the panels as seen in FIG. 6, to insure the holding of the screws 51.

When all panels and frame members have been assembled and properly joined, they provide a rigid and substantial case or cabinet. If desired, such cabinets may be assembled in multiples using a common panel between components, thereby eliminating duplication of wall panels common to both installations.

This invention is characterized by the joining of the metal frame members without welding, with concealed fasteners, rigidity of securement being effected by the wedging action of the clips 40 with the heads 25x of bolts 25 adjustably secured in the fasteners 26.

The application of the frame rails 1l16' over the clips 29 insures their securemen-t to the horizontal panels, and the clips 49 applied to the ends of vertical frame rails 11-11 draws the parts tightly in rigid assembly.

It is to be understood that in the making of cabinets of the type illustrated in FIG. 1, the back edge could embody the same metal frame construction if this should be desired.

I claim:

1. In a knock-down cabinet construction; two panels assembled in right angular relationship with their forward edges even and with a side surface portion of one panel disposed flatly against the end edge surface of the other panel, a frame rail of channel form applied in a holding connection over and along the forward edge portion of each panel and terminating at their ends fiush with the end edges of the corresponding panel; one of said rails being formed with a bolt hole in a side wall thereof, at a point in registration with the adjacent end edge surface of the other panel and rail, a bolt-holding clip secured to the end edge portion of said other panel and a bolt adjustably mounted by said clip and extended therefrom; said bolt having a head portion at its extended end applied through said bolt hole of the adjacent rail wall and means holdingly securing said bolt in the rail containing the bolt hole, thereby to join the panels in assembled relationship.

2. A cabinet construction according to claim 1 wherein the means for holdingly securing the bolt head portion in said rail containing the bolt hole comprises a locking clip inserted in the rail that receives the bolt head portion and is interlocked with the bolt head portion to secure the bolt head portion against withdrawal or looseness.

3. In a knock-down cabinet construction, two wall forming panels assembled in right angular relationship, with the end edge surface of one panel abutted flatly against a side surface of the other and flush with its end edge surface, and with their forward longitudinal even; said even longitudinal edges each being formed with a projecting tongue, the tongue of one of said panels terminating short of the end surface of that panel; each of said tongues being grooved in opposite faces to their full length, a channeled rail, telescopically fitted over each tongue, each rail having inturned flanges along edges of its side walls, said grooves slidably containing the rail flanges therein, a U-shaped clip with its legs applied against opposite sides of that tongue which terminated short of the end of the panel, and clamped thereagainst and holdingly engaged therewith beneath the opposite wall portion of the corresponding rail; a bolt having a head end portion secured adjustably in the base end Wall of said clip with its head end portion extended outwardly therefrom, said rail as applied to that tongue of the other panel having a bolt receiving hole positioned to receive said bolt head portion therethrough and a bolt head portion engaging clip applied in the open end of the bolt receiving rail and holdingly engaged with said bolt head portion to retain said rails in holding connection.

4. A device according to claim 3 wherein the said bolt is threaded at its inner end into a holding nut that is secured by a said U-shaped clip, and wherein the head end portion of said bolt has cam slots formed thereacross at opposite sides, and said bolt head portion engaging clip is formed as a U-shaped clip with a leg portion recessed to embrace the head end of the bolt between them with camming efiect, thus to draw the joined parts firmly together.

5 mounting tongue by the overlapping walls of the channeled rail as applied to the tongue.

References Cited by the Examiner UNITED STATES PATENTS 10 2,096,942 10/37 Suters 312--140 FOREIGN PATENTS 665,631 1/52 Great Britain.

15 FRANK B. SHERRY, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2096942 *May 2, 1934Oct 26, 1937Remington Rand IncMuseum case
GB665631A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3439812 *Mar 13, 1967Apr 22, 1969Miller Herman IncGlueless furniture joint
US3491820 *May 29, 1968Jan 27, 1970Modular SystFlexible joint structure and clips therefor
US3837754 *Jun 21, 1971Sep 24, 1974Swingline IncCorner support structure and cap member utilized in connection with same
US3867045 *Mar 25, 1974Feb 18, 1975Amax Aluminum Company IncTube connector
US4040227 *Aug 4, 1975Aug 9, 1977Lely Cornelis V DMethods of manufacturing building sections
US4127353 *May 25, 1977Nov 28, 1978Firma Richard HeinzeDetachable connector for cabinets
US4146342 *Aug 1, 1977Mar 27, 1979Gunnar CederholmFastener system
US4265500 *Jun 19, 1978May 5, 1981Ing. C. Olivetti & C., S.P.A.Metal furniture in sectional units
US4332205 *Sep 13, 1979Jun 1, 1982Modular Systems, Inc.Interlocking furniture assembly and method
US4439971 *Mar 24, 1982Apr 3, 1984Woodrite, Inc.Panel connector
US4470716 *Jun 1, 1982Sep 11, 1984Modular Systems, Inc.Fastener clip with slip-proof locking feature, joint structure using same and method for making same
US4473316 *May 10, 1982Sep 25, 1984Modular Systems, Inc.Fastener clip and joint structure
US4650263 *Jan 7, 1985Mar 17, 1987Tandem Computers IncorporatedStructural support and thin panel assembly
US4676040 *Oct 1, 1986Jun 30, 1987Tandem Computers IncorporatedStructural support and thin panel assembly
US6312186 *Feb 9, 1999Nov 6, 2001Julius Blum Gesellschaft M.B.H.Fastening device
US7517270May 30, 2006Apr 14, 2009Minds-I, Inc.Construction system
US7736211Nov 29, 2005Jun 15, 2010Minds-I, Inc.Construction system
US7913863 *Mar 29, 2011Shih-Ming LinShelving unit whose support board is in quick and easy assembly
US20070123137 *Nov 29, 2005May 31, 2007Michael MarzettaConstruction system
US20070277459 *May 30, 2006Dec 6, 2007Michael MarzettaConstruction system
US20080075528 *Sep 22, 2006Mar 27, 2008Michael MarzettaConstruction system
US20090017716 *Jul 11, 2007Jan 15, 2009Michael MarzettaConstruction system
US20100122965 *Feb 24, 2009May 20, 2010Shih-Ming LinShelving Unit Whose Support Board is in Quick and Easy Assembly
WO2005076739A2 *Feb 15, 2005Aug 25, 2005Doron LachishUniversal fasteners for do-it-yourself modular furniture and shelves
WO2005076739A3 *Feb 15, 2005Apr 23, 2009Doron LachishUniversal fasteners for do-it-yourself modular furniture and shelves
U.S. Classification312/263, 52/285.2, 217/65, 52/285.3
International ClassificationA47B47/03, F16B12/00, A47B47/00, F16B12/02
Cooperative ClassificationF16B12/02, A47B47/03
European ClassificationA47B47/03, F16B12/02