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.

Patents

  1. Advanced Patent Search
Publication numberUS3591212 A
Publication typeGrant
Publication dateJul 6, 1971
Filing dateFeb 26, 1969
Priority dateJan 11, 1967
Publication numberUS 3591212 A, US 3591212A, US-A-3591212, US3591212 A, US3591212A
InventorsRhyne Jeff S
Original AssigneeRhyne Jeff S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Construction for dovetail joint
US 3591212 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent [72] Inventor Jefl S. Rhyne 537 East Lafayette Street, Marianna, Fla. 32446 [21 I Appl. No. 802,520 [22] Filed Feb. 26, 1969 Division of Ser. No. 608.545. Jan. ll. i967. Pat. No. 3.442.311. [45] Patented July 6, 1971 [54] CONSTRUCTION FOR DOVETAIL JOINT 4 Claims, 4 Drawing Figs.

[52] US. Cl 287/2092 D, 52/284 [51 1 Int. Cl Fl6b 7/00 [50] Field otSearch ..287/20.924, 20.92 W, 20.92 D, 20.92 G; 144/319; 52/284 [56] References Cited UNITED STATES PATENTS 435,759 9/1890 Matter 287/2092 D FOREIGN PATENTS 599,433 ltaly Primary Examiner-David J. Williamowsky Assistant Examiner-Wayne L. Shedd Attorney-Harry R. Dumont ABSTRACT: An interlocking structure for fonning a rightangle joint between two panel members wherein an edge of each member is stamped to form alternate dovetail tenons and mortises along that edge, whereafter the panel members are pressed together at right angles to force the tenons on the one member into the mortises on the other member. As the tenons enter the mortises, the material of each is deformable to allow the small edge dimension of the mortises to pass the large CONTR UCTION FOR DOVETAIL JOINT This application is a divisional application of my copending application Ser. No. 608,545, now U.S. Pat. No. 3,442,3l l, filed Jan. 1 1, 1967, entitled DOVETAIL JOINT.

BACKGROUND OF THE INVENTION This invention relates to containers and the like. More particularly, it relates to a construction for joining together a plurality of rectangular panel members to form a closed, boxlike structure suitable for use, for example, as a drawer for an article offurniture.

Many structures have been proposed forjoining panel members together. Perhaps one of the most popular of these involves the use of so-called dovetail joint. Dovetail joints, while generally satisfactory, offer resistance to separating movement of the panel members only in one relative direction. If resistance to separating movement in both directions of relative movement is required, some other means, such as glue, must be employed. Many attempts have been made to modify the structure of standard dovetail joint to enable it to offer resistance to separating movement in both relative directions. In each case however, the proposed modification, while perhaps accomplishing the desired double interlock, has been so complicated and expensive as to render the resulting joint commercially impractical.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide an improved joint of the dovetail type.

According to the present invention, a plurality of tenons are formed along one edge of one of the panel members to be joined, and a plurality of mortises are formed along one edge of the other panel member. The mortises formed in the one member have the same size and shape as the tenons formed in the other member and the mortises and tenons each present a dovetail configuration when viewed in the the plane of the member in which they are formed. Following formation of the mortises and tenons, the panel members are pressed together at right angles one to the other to force the tenons on the one member into the mortises on the other member. Since the leading portion of each tenon has a width greater than the width of the corresponding mortise measured at the outer edge of the panel member, the material of the tenon and mortise must mutually deform to pass the tenon and allow it to seat fully within the mortise. After the leading edge of the tenon has passed, the deformed material of the mortise expands to grasp the tenon adjacent its root. The interengaged and mutually deformed tenons and mortises thus form a double interlocking structure precluding separating movement of the panel members in either direction of relative movement.

BRIEF DESCRIPTION OF DRAWINGS A preferred embodiment of the invention is illustrated in the accompanying drawing. in the drawing:

FIG. 1 is a perspective, partially exploded view of a container embodying features of the present invention;

FIG. 2 is a fragmentary view on an enlarged scale showing a portion of one edge of one of the panel members forming the container of FIG. 1;

FIG. 3 is a detail view on an enlarged scale showing a single tenon prior to its forced insertion into the corresponding mortise; and

FIG. 4 is a view similar to FIG. 3 but showing the mortise and tenon in their interlocked positions.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The invention is demonstrated in the disclosed embodiment in the construction of a rectangular container seen in partially exploded form in FIG. 1. Container 10 includes four rectangular side panels A, B, C, and D, and a rectangular bottom panel E. Each of the panel members may be formed, for example, from 4r-inch particle board or other natural or composition material capable of undergoing deformation and having some resiliency.

A plurality of alternate tenons 12 and mortises 14 are formed along two opposite side edges of each side panel. The tenons and mortises on each panel have a dovetail configuration when viewed in the plane of that panel and have walls extending generally normal to that plane. The tenons on any given side panel are preferably of exactly the same size and shape as the tenons on any other panel and the mortises preferably have the same size and shape as the tenons.

For example, and as best seen in FIG. 2, the walls of each of the tenons and mortises may be inclined at an angle of approximately 7 to the horizontal and the mean diameter X of each tenon and the mean diameter Y of each mortise may equal one-half inch. Further, the height Z of each t enon (and the depth of each mortise) is equal to or slightly less than the thickness of the panels. Thus, if the panels are formed of /1- inch particle board, the dimension Z will also be one-quarter inch or slightly less. The mortises and tenons are formed in a stamping operation performed on an automatic feed punch press.

Following the stamping operation, panels A and B, for example, are pressed together at right angles one to the other to force the tenons on panel A into the mortises on panel B and the tenons on panel B into the mortises on panel A. This step may be performed, for example, by the use of a hydraulic clamp or similar force-applying apparatus.

Since the width of the mortises measured at the very side edge of the panel is less than the width of the leading edge'of the tenons, a certain amount of deformation must take place to permit the tenons to seat fully within the mortises. The nature and extent of this deformation is best seen in FIGS. 3 and 4 wherein it is assumed that the panel B is held stationary while panel A is moved toward it at a right angle.

As the tenon i2 enters the mortise Id, the material at the top and bottom of the outer leading edge 16 interferes with the material at the edge face 18 of the panel B so that a mutual deformation takes place to allow the tenon to pass. The extent of deformation of the tenon is greatest at the outer leading edge 16 and progressively less proceeding across the thickness of the tenon with the inner leading edge 20 theoretically suffering no deformation; the extent of deformation or spreading of the mortise is greatest at edge face 18 and progressively less proceeding along the depth Z of the mortise with the mortise theoretically suffering no deformation or spreading adjacent the root face 22.

The approximate final configuration of tenon 12 and mortise 14 following seating of the tenon fully within the mortise is shown by the dash lines of FIG. 3. The interlocking relationship of the deformed mortise and tenon is shown in FIG. 4. Note that some of the material along the mouth edges 24 and 26 of the mortise that was deformed by the passage of the large leading edge of the tenons has expanded following passage of this leading edge to grasp the root or small dimension of the tenon. This deformed and then expanded material is shown by the shaded areas 28 in FIG. 4.

The joint formed thus is of a construction that precludes separation of the panels A and B in either direction of relative movement. Specifically, any tendency of panel A to separate from panel B by movement in the direction of the arrow F in FIG. 4 is resisted by the interference between expanded material 28 and the leading edge of tenon 12. Any tendency of panel B to separate from panel A by movement in the direction of arrow G is resisted by interference between the material at the mouth of the mortise and the large undeformed dimension of the portion 29 of the tenon positioned adjacent the root of the mortise.

Panel B may be joined to panel C in a similar manner, as may be panel C to panel D and panel D to panel A.

Referring again to FIG. 1, bottom panel E has alternate mortises 30 and tenons 32 formed along each of its edges. The mortises and tenons have a dovetail configuration when viewed in the plane of panel E and are adapted to coact with a plurality of rectangular apertures 34 formed along the bottom edge of each panel member A, B, C, and D. Mortises and tenons 30, 32 are preferably of the same size and shape as mortises and tenons l2, l4, and, like mortises l2, 14, may be formed in a stamping operation performed on an automatic feed punch press. Apertures 34 may be formed in a punching operation using a simple, straight-sided punch.

Apertures 34 have a width approximating the width of tenons 32 measured at the root; thus, when tenons 32 are forced into apertures 34, a mutual deformation of the material of the tenon and the material around the aperture occurs to allow the aperture to accept the oversize dimension of the leading edge of the tenon. Tenons 32 and apertures 34 thus coact to hold bottom E securely in place.

The invention will be seen to provide a simple and inexpensive construction for forming a double interlock joint between panel members. This structure offers cost savings not only because of its basic simplicity as measured in terms of a minimum number of production steps, but also because it is peculiarly adapted to the use of low-cost composition board materials. The instant invention effects further cost savings by allowing the application of mass production stamping techniques to the formation of the various panel members.

It should be noted that the conventional dovetail tenon and mortise structure cannot be formed by stamping or punching but must be cut out by use of a dovetail router bit, and the conventional joint provides locking action in one direction only. Such a joint is unsatisfactory for use in a drawer construction, for example, because force is exerted in opposite directions during normal opening and closing of the drawer. The construction disclosed and claimed herein not only reduces the cost of production by facilitating use of stamping or punching technique, but actually provides a structurally stronger joint.

I claim:

1. An interlocking structure comprising:

A. a first elastically deformable panel member having a plurality of tenons along one side edge thereof, each of said tenons having a dovetail configuration when viewed it: the plane of that member and each having walls extending generally transverse to that plane; and

B. a second elastically deformable panel member oriented at an angle to said first panel member and having a plurality of mortises along one side edge thereof, each moruse 1. having a dovetail configuration when viewed in the plane of that member,

2. having walls extending generally transverse to that plane,

3. having a width proximate its side edge farthest from said tenons of a magnitude less than that of the leading edge of each corresponding tenon and having a width across its bight portion which matches that of the portion of said tenon juxtaposed thereto, the aforesaid difference in widths of each mortise and tenon forming narrow wedge-shaped interfering portions, the maximum amount of interference during assembly of said members remaining within the elastic limits of the materials forming said mortises and tenons, and

4. receiving a tenon on said first panel member in interlocking relation to form an interlocking joint between said panel members.

2. The combination as set forth in claim 1 wherein:

C. said first panel member has a thickness substantially equal to the depth of the mortises of said second panel member and D. said second panel member has a thickness substantially equal to the height of the tenons of said first panel member.

3. The combination as set forth in claim 1 wherein: C. said first and second panel members are oriented at substantially a right angle, one to the other.

4. The combination as set forth in claim 1 wherein:

C. said panel members are four in number such that in the resulting closed structure they form the four sides of a parallelogram.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US435759 *Aug 5, 1889Sep 2, 1890 Dovetail joint
IT599433B * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3879906 *Jul 22, 1974Apr 29, 1975Hollenberg Dennis DTwo-member structural joint
US3892098 *Sep 11, 1973Jul 1, 1975Kobori RineiProcess and a device for butt jointing and assembling panels of a building
US4000827 *Jan 9, 1976Jan 4, 1977Anthony EmeryProduce container
US4120551 *Oct 26, 1976Oct 17, 1978Krieg & Zivy IndustriesInterlocking drawer assembly
US4165003 *Mar 13, 1978Aug 21, 1979Drader Clarence HStackable and nestable containers
US4173287 *May 25, 1977Nov 6, 1979Shozo KumakawaMethod of making boards and packing cases made therefrom
US4807802 *Feb 1, 1988Feb 28, 1989Cole WilliamsContainer assembly
US5072554 *Apr 27, 1990Dec 17, 1991The United States Of America As Represented By The Secretary Of The Air ForcePrefabricated modular storage building
US5114265 *Apr 15, 1991May 19, 1992Grisley Kenneth MInterlocking routed joint
US5297836 *Jun 30, 1992Mar 29, 1994Jaguar Cars LimitedMotor car chasis structure
US5360463 *Feb 26, 1993Nov 1, 1994Mercedes-Benz AgAir filter assembly for heating or air-conditioning system
US6202847 *Jan 19, 1999Mar 20, 2001Design Ideas, Ltd.Stackable boxes
US6253520 *Nov 3, 1995Jul 3, 2001Edward E. HoukInterlocking components and assembly system
US6325568 *Oct 20, 1999Dec 4, 2001The Boeing CompanyCombined mortise and tenon joint feature
US6367423 *Jun 30, 2000Apr 9, 2002Barbara ScheuerDevice for protecting furniture from pet damage
US6554528 *May 14, 2001Apr 29, 2003Thomas ChelkoUtility bracket
US6577699 *Apr 28, 2000Jun 10, 2003British Nuclear Fuels, PlcContainer for nuclear fuel elements
US7017766Mar 10, 2003Mar 28, 2006Rehrig Pacific CompanyCollapsible container with side wall latching capability
US7059489Oct 11, 2002Jun 13, 2006Rehrig Pacific CompanyPortable storage device
US7195127May 13, 2003Mar 27, 2007Rehrig Pacific CompanyCollapsible container
US7213311 *Jul 23, 2004May 8, 2007Vandor CorporationMortise and tenon casket
US7641066Jun 11, 2007Jan 5, 2010Rehrig Pacific CompanyCollapsible container
US7717283Nov 6, 2007May 18, 2010Rehrig Pacific CompanyCollapsible container
US7726502Mar 3, 2008Jun 1, 2010Rehrig Pacific CompanyContainer
US7770340 *Oct 24, 2005Aug 10, 2010Heady Timothy PMethod and apparatus for installing egress window steps
US8221111 *Jan 27, 2005Jul 17, 2012Kyocera CorporationMold, method of forming the same, and method of producing polycrystalline silicon substrate using the mold
US8381455 *Sep 7, 2010Feb 26, 2013Frank W. SchooleyTool free transitional shelter
US8449052 *Dec 30, 2009May 28, 2013Matt BriggsDrawer assembly
US8955709 *May 21, 2010Feb 17, 2015Schoeller Arca Systems GmbhLarge cargo carrier
US8961059 *Sep 6, 2012Feb 24, 2015The Boeing CompanySelf-locking joints for panel structures and methods of fabricating the same
US9016003 *Feb 17, 2014Apr 28, 2015Suncast Technologies, LlcModular blow molded shed with connectors
US20020108950 *Feb 14, 2001Aug 15, 2002Moorman Stephen E.Collapsible container
US20040069780 *Oct 11, 2002Apr 15, 2004Rehrig Pacific CompanyPortable storage device
US20040178197 *Mar 10, 2003Sep 16, 2004Rehrig Pacific CompanyCollapsible container
US20040226945 *May 13, 2003Nov 18, 2004Hsu Roger SCollapsible container
US20050138782 *Jul 23, 2004Jun 30, 2005Davis Gerald H.Mortise and tenon casket
US20050180715 *Jun 17, 2004Aug 18, 2005Ke-Shu ChinLight tunnel
US20070089373 *Oct 24, 2005Apr 26, 2007Heady Timothy PMethod and apparatus for installing egress window steps
US20070095842 *Nov 1, 2005May 3, 2007Apps William PContainer
US20070194023 *Mar 16, 2007Aug 23, 2007Apps William PContainer
US20080116201 *Nov 17, 2006May 22, 2008Kyle BaltzContainer
US20080142399 *Mar 3, 2008Jun 19, 2008Apps William PContainer
US20080230678 *Jan 27, 2005Sep 25, 2008Kyocera CororationMold, Method of Forming the Same, and Method of Producing Polycrystalline Silicon Substrate Using the Mold
US20080302791 *Jun 11, 2007Dec 11, 2008Baltz Kyle LCollapsible Container
US20090114647 *Nov 6, 2007May 7, 2009Apps William PCollapsible container
US20090159593 *Jan 15, 2008Jun 25, 2009Apps William PCollapsible container
US20090323265 *Jun 27, 2008Dec 31, 2009Kwok-Yan LeungCasing assembly structure
US20100253192 *Dec 30, 2009Oct 7, 2010Matt BriggsDrawer assembly
US20110084083 *Oct 11, 2010Apr 14, 2011Baltz Kyle LCollapsible bin
US20120013230 *Jul 18, 2011Jan 19, 2012Purdue Research FoundationCollapsible furniture jointing system
US20120055101 *Sep 7, 2010Mar 8, 2012Schooley Frank WTool free transitional shelter
US20120080343 *Oct 1, 2010Apr 5, 2012Gretz Stephen ETapered planter box
US20130048522 *May 21, 2010Feb 28, 2013Schoeller Arca Systems GmbhLarge cargo carrier
US20130146606 *Feb 1, 2013Jun 13, 2013Obeikan Mdf Espana, S.L.Packaging
US20130295513 *May 4, 2012Nov 7, 2013Memc Singapore Pte. Ltd. (Uen200614794D)Susceptor For Directional Solidification Furnace
US20140064833 *Sep 6, 2012Mar 6, 2014The Boeing CompanySelf-Locking Joints for Panel Structures and Methods of Fabricating the Same
DE3911817A1 *Apr 11, 1989Oct 18, 1990Selzer FertigungstechWinkelstueck aus flachmetall
EP1011362A1Dec 29, 1997Jun 28, 2000Leonard DuffyInterlocking device
Classifications
U.S. Classification217/65, 403/381, 220/691, 403/231, 52/284
International ClassificationB27M3/18, F16B12/46, B27M1/00, F16B12/00, B27F1/00, B27M1/02
Cooperative ClassificationF16B2012/046, B27M1/02, F16B12/46, B27M3/18, B27F1/00
European ClassificationB27F1/00, B27M3/18, B27M1/02, F16B12/46