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Publication numberUS3851601 A
Publication typeGrant
Publication dateDec 3, 1974
Filing dateFeb 9, 1973
Priority dateFeb 9, 1973
Publication numberUS 3851601 A, US 3851601A, US-A-3851601, US3851601 A, US3851601A
InventorsDavis J
Original AssigneeDavis J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Display case stand
US 3851601 A
A stand is disclosed herein for supporting a shelf holding a variety of articles intended to be displayed for public viewing. The display stand includes a modular framework having upright corner posts supporting releasable side rails that detachably retain a shelf panel. Each framework corner post consists of a plurality of extensions coupled at their opposing ends by a corner joint having a cylindrical body carrying laterally directed projections insertably receivable into openings provided in the terminating ends of the shelf panel supporting rails. The opposing ends of the framework post extensions carry interlocking couplings for snap locking the extensions together so as to capture and hold the corner joint in position whereby a unitary framework is produced.
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Description  (OCR text may contain errors)

limited States Patent [1 1 Davis I, 1 Dec. 3, 1974 DISPLAY CASE STAND r 1 n,l' \,r Primary Examiner-Paul R. Gilliam Inventor' 32 g' 2 fi; 2 Assistant Examiner-Darrell Marquette Attorney, Agent, or FirmRog er A. Marrs [22] Filed: Feb. 9, 1973 [21] Appl. No.: 331,321 [57] ABSTRACT A stand is disclosed herein for supporting a shelf hold- [52] US. Cl 108/153, 108/111, 211/148, ing a variety of articles intended to be displayed for 211/182, 403/ 171, 403/349 public viewing. The display stand includes a modular [51] Int. Cl A47b 3/06 framework having upright corner posts supporting re- [58] Field of Search 108/153, 154, 111, 91; leasable side rails that detachably retain a shelf panel. 211/182, 148; 403/171, 172, 349, 315; Each framework comer post consists of a plurality of 312/257 SK; 24/221 R extensions coupled at their opposing ends by a corner joint having a cylindrical body carrying laterally di- [56] References Cited rected projections insertably receivable into openings UNITED STATES PATENTS provided in the terminating ends of the shelf panel 2 060 523 11/1936 Packer 403 349 Supporting t The oPposing ends of the framework 2:664:002 12/1953 Anderson 403/315 Post extensons carry Interlocking couplings snap 2,723,876 11/1955 Langlois et a1. 403/349 locking the extensions together so as to Capture and 3,268,252 8/1966 Rolland 211/182 hol the corner joint in position whereby a unitary 3,537,408 1l/1970 Bartlett 108/111 framework is produced. 3,759,598 9/1973 Limberger 211/148 I 3,765,541 10/1973 Madey et al. 211/182 6 Claims 5 Drawing Figures BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to display stands and more particularly to a novel corner joint for use in assemblying a modular framework.

2. Description of the Prior Art In the past, it has been the conventional practice to employ display stands for supporting a variety of articles intended to be viewed by potential customers and the general public. These stands generally include a framework which support at least one shelf on which the variety of items or articles are supported. At the present time, it is the customary practice to use frameworks and shelves which may be readily assembled and disassembled so that the stand can be erected at a display site and supported in its erected condition until the close of a show at which time the framework is disassembled and shipped to another location.

Difficulties and problems have been encountered when employing conventional portable display stands that stem largely from the fact that the hardware employed requires close tolerances in its manufacture so that the plurality of parts necessary to form the complete assembled framework will fit and join properly.

Since these individual parts and pieces are handled by workmen during the assemblying and disassemblying of I the framework, the parts are often-times dropped and damaged so that they cannot be fitted or joined. Also, conventional portable display framework generally require hand tools for assembly and disassembly such as wrenches, screw drivers, hammers and the like. Obviously, the necessity for such hand tools greatly increases the time required for assembly and disassembly of the framework and also increases the potential for damaging the mating parts. In some instances, skilled personal is required which not only increases the cost of erection, but requires scheduling of time.

Therefore, a long standing need has been in existence for providing a modular framework with a means for readily attaching and detaching respective components of the framework without the necessity of tools, skilled personal or elaborate preparations.

tered with conventional portable display stands are ob-. viated by the present invention which provides a modular framework having a plurality of posts for supporting at least one shelf at the respective corners thereof.

Each of the posts comprises a plurality of extensions.

which are joined at their opposite ends by a novel corner joint comprising a cylindrical body having laterally projecting support members. The opposing ends of respective post extensions are formed with a snap lock fastening means adapted to couple with the cylindrical body of the corner joint in releasable engagement. This latter means further includes a resilient means for forcibly urging the fastener means into the snap lock engagement. The corner joint supports horizontally disposed rails by insertably positioning the laterally projected members into openings at the end of each of the rails whereby the rails are supported at their opposite ends by the respective corner joints of the assembly. Resilient snap lock means may be provided for cooperatively retaining the rails on the corner joints so that a rigid and stablized display stand is produced.

Therefore, it is among the primary objects of the present invention to provide a novel modular framework for a display stand wherein the convene-"its of the framework may be readily snap locked into joining relationship to produce a stable and rigid display stand.

tached by means of snap lock fasteners to support,

shelves for displaying a variety of items or articles.

Still another object of the present invention is to provide a novel modular framework for a display stand that may be rapidly assembled and disassembled by unskilled personal and wherein the individual parts of the assembly are not readily damaged or deformed by inadvertent dropping or impacting against hard surfaces or damaged by improper assembly.

Yet another object of the present invention is to provide a novel display stand for a variety of articles or items that provides a pleasant appearance and which may be readily assembled and disassembled by unskilled personal.

The features of the present invention which are believed to be novel are set forth with particularity in the appended claims. The present invention, both as to its organization and manner of operation, together with further objects and advantages thereof, may best be understood by reference to the following description, taken in connection with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a modular framework for supporting a panel shelf employing the novel corner joint of the present invention;

FIG. 2 is an exploded perspective view of the novel corner joint of thepresent invention for releasably securing opposing ends of framework post extensions as employed in the framework shown in FIG. 1;

FIG. 3 is a sectional view of the corner joint showing assembly thereof to opposing extension ends of the framework posts;

FIG. 4 is a side elevational view, partly in sections, showing a completed joint and illustrating attachment of a side rail thereto;

FIG. 5 is a transverse cross-sectional view taken in the direction of arrows 5-5 of FIG. 4 showing the snap lock'attachment of the corner joint to the side rail.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, a display stand is illustrated in the general direction of arrow 10 which includes a modular framework comprising an upright vertical post 11 arranged at each comer of a panel shelf 12 having its marginal regions by a pluality of side rails identified by numerals l3, l4 and 15 respectively. Each of the side rails include means for supporting a trim edging as indicated by numerals 16 and 17. Post trim caps 18 and 19 are provided for finishing or terminating the end of an upright post 11. These latter caps are snapped into the hollow of each post for securement. Therefore, it can be seen that the display stand includes comer posts which support side rails 13-15 inclusive that in turn support panel shelf 12. The side rails further support finishing edge trimming as indicated by numerals 16 and 17. The entire framework for supporting the shelves is modular in concept and construction so that the unit may be readily assembled and disassembled by unskilled personal. The most important or critical portion of the'modular framework resides in a corner joint 20 that detachably joins or connects the opposing ends of extensions 21 and 22 comprising a length of post 11. By this means, post 11 comprises joint 20 as well as a plurality of extension which may be of suitable length for placing the panel 12 at a desired distance above the floor.

Referring now in detail to FIG. 2, corner joint 20 may be said to comprise a cylindrical body 23 having a central bore 24 extending therethrough in a vertical plane. Body 23 further includes a pair of laterally projecting members 25 and 26 that are disposed at right angles to one another from their fixed connection with the cylindrical body 23. Each of the laterally projection members 25 and 26 includes an open ended slot 27 and 28 respectively serving as receivers for snap lock engagement with side rails to be described later.

The opposing ends of members 21 and 22 are cooperatively arranged with a snap-lock fastener for detachably connecting the post members to each other and to the corner joint 20. In one form, the snap-lock fastener comprises a pair of reduced diameter portions 30 and 31 coaxially formed in the terminating end of post member 22 so that a substantial portion of each length forms a mounting surface for cylindrical body 23 and the opposing end of member 21 respectively. In greater detail, reduced portion 31 is intended to be received within bore 24 so that the cylindrical body 23 is supported on reduced portion 31. When reduced portion 31 is inserted through bore 24 so as to mount body 23 thereon, second reduced portion 30 will project out of bore 24 from the opposite side of body 23. Post member 21 is inserted over reduced portion 30 and includes a projection 32 carried on a spacer 33 that passes through a slot 34 formed in the second reduced portion 30. Slot 34 terminates in a laterally disposed cam-lock aperture indicated by numeral 35 that terminates in an enlarged opening for receiving pin 32. In essence, pin 32 and the cam-lock slot 34 and 3S constitute a bayonet type socket snap-locking the opposing ends of members 21 and 22 together so as to capture or confine corner joint 20 therebetween.

It is of significance to note that first reduced portion 31 joins with member 22 at a shoulder 36 against which a resilient O-ring 37 is disposed. The O-ring 37 is assembled over the first reduced portion 31 and is slid against the annular shoulder 36. When the cylindrical body 23 is inserted over the portion 31, the body 23 is pressed against the seal or O-ring 37 until the snap-lock fastener of members 21 and .22 are engaged. After en- I gagement, the resiliency of the O-ring 37 places an expanding force to resiliently hold the fastener in its snaplock condition and provides a yieldable tension against the corner joint 20 for holding it in place.

Referring now to FIG. 3 in detail, the assembly procedure is further illustrated in that corner joint 20 is illustrated as having its cylindrical body 23 positioned over reduced portion 31 preparatory to receiving the end of member 21 over reduced portion 30. It is to be particularly noted that when the corner joint 20 has been slid over reduced portion 31 to the extent that body 23 rests on O-ring 37, a portion of body 23 at its opposite end extends above or beyond first reduced portion 31. The distance of this extension is indicated by the letter d between the arrows. This distance is eventually taken up by compression of the ring or washer 37 when member 21 is forced against body 23 during the snap-lock fastening of pin 32 with the camslot 35. When the pin and slot have been properly connected so that washer or ring 37 is compressed, the corner joint is secured between the opposing ends of members 21 and 22 as shown in FIG. 4.

In FIG. 4, a force F is imparted to the corner joint via body 23 urging the body into contact with the terminating end of member 21. This force is generated by the resiliency or expanding tendency of the resilient washer 37.

It is also noted in FIG. 4 that lateral projection member 25 supports the end of rail 14. Rail 14 includes a pair of spaced-apart elements 40 and 41 which define the upper and lower limits of an opening insertably receiving lateral projection member 25. The sides of the opening are defined by flanges 42 and 43 which are arranged fixed spaced-apart relationship to provide an elongated slot 44 intended to receive the edge marginal region of panel 12 for support thereon. Upper and lower elements 40 and 41 also include a small'opening 45 for receiving a stop element 46 that is carried on the end of a resilient leaf spring 47. Stop member 46 passes through opening 45 and resides within slot 27 of the projection member 25 so that the rail is held in position on the member. For release, a probe may be inserted through a lower slot 47 formed in lower element 41 and engaged with the stop 46 so that the stop may be forced upward out of opening 45. This latter position is shown in broken lines by the leaf spring.

With respect to FIG. 5, it can be seen that the panel 12 is supported between the flanges 42 and 43 and that the stop 46 is inserted into the slot 27 to retain the rail 14 on the member 25. Furthermore, the rail includes upright members 50 and 51 in a fixed spaced relationship so as to define a space intended to be occupied by the lower edge of trim panel 16. By this means, the trim panel is supported on the side rail as well as the shelf panel 12.

In view of the foregoing, it can be seen that the display stand of the present invention provides a modular framework for supporting one or more shelf panel adapted for supporting a variety of items or articles to be displayed. The frame including the framework is adapted to be readily assembled at a particular display site and readily disassembled when the display event is terminated.

The highth of the display stand may be of any suitable nature depending upon the length of the individual post extensions used in the assembly. Also, as many shelf panels as desired may be used and in each instance, individual and separate corner joints 20 will be used along with associated side rails supported therefrom by the lateral projection members. By employing a resilient washer or ring 37, a constant force or tension is placed on the corner joint that secures the joint in position relative to the opposing ends of the post extensions and which places a force on the pin and cam-lock fastener between opposing ends of the post extensions.

While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of this invention.

What is claimed is:

1. In a modular display stand having a plurality of individual, readily assembled components, the combination comprising:

a shelf panel for supporting a variety of items intended to be displayed;

a plurality of posts disposed along the perimeter of said panel in fixed spaced apart relationship;

each of said posts having at least two extensions arranged in end-to-end relationship;

snap-lock fastening means releasably joining the opposing ends of said extensions so as to rigidize and stabilize said post;

said snap-lock fastening means including a corner joint captured between said extensions and having a pair of laterally outward projecting members disposed at a 90 angle to each other;

side rails detachably connected at their opposite ends to respective ones of said laterally projecting mem bers and extending between said posts; and

ing an adjacent edge marginal region of said panel.

2. The invention as defined in claim 1 wherein:.

said snap-lock fastening means further includes resilient means forcibly urging said corner joint against a selected one of said post extensions.

3. The invention as defined in claim 2 wherein:

said resilient means comprises an annular washer carried on the other of said post extensions in a state of compression in conjunction with said corner joint.

4. The invention as defined in claim 3 wherein:

said corner joint further includes a cylindrical body carrying said laterally projection members and having a central bore extending therethrough for accommodating a reduced diameter portion of one of said post extensions.

5. The invention as defined in claim 4 wherein:

said post extension having said reduced portion further includes a second reduced diameter portion projecting beyond said comer joint body and said second reduced portion being formed with a cam slot for insertably receiving a pin carried on the other post extension.

6. The invention as defined in claim 5 wherein:

said side rails include an aperture for insertably receiving one of said projecting members of said corner joint and releasable locking means for holding said side rail to said projecting member.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2060523 *Mar 29, 1934Nov 10, 1936Westinghouse Electric & Mfg CoBeater rod locking device
US2664002 *Jun 28, 1950Dec 29, 1953Landers Frary And ClarkCoupling for drink mixers
US2723876 *Jul 21, 1951Nov 15, 1955Technical Service IncParachute release
US3268252 *Jan 21, 1964Aug 23, 1966Rolland Robert CFrame structure having improved joint means
US3537408 *May 14, 1968Nov 3, 1970Sullivan Ind Inc OChannel rail support for tv stands
US3759598 *Jun 20, 1972Sep 18, 1973B LimbergerSupporting frame
US3765541 *Apr 7, 1971Oct 16, 1973Poster ProductsStructural units and method of assembling them
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4024686 *Nov 21, 1975May 24, 1977Ronald GronertAssembly building having floor elements supported between superimposed columns
US4036371 *Feb 13, 1976Jul 19, 1977Gebruder Vieler GmbhSupport structure for furniture, shelves or the like
US4094417 *Jan 24, 1977Jun 13, 1978Cairnes Maltby Associates LimitedShelving and display systems and the like
US4364548 *Oct 6, 1980Dec 21, 1982Emerson Electric Co.Portable workbench
US4419938 *Dec 4, 1981Dec 13, 1983Albin KautPlug-assembled sectional display rack
US4516376 *Jul 16, 1982May 14, 1985King Lionel WAssembly system
US4558713 *Oct 29, 1982Dec 17, 1985American Canvas CompanyFrame system and connectors for portable shelters
US4575881 *Dec 28, 1984Mar 18, 1986Kohler Co.Perpendicular toilet trip lever assembly
US4615278 *Dec 24, 1984Oct 7, 1986Cabrelli Peter AShelving apparatus and method of assembling same
US4684087 *Aug 18, 1986Aug 4, 1987Spickard Gerald VGrocery bag holder and kit for the assembly thereof
US4815727 *Jun 19, 1987Mar 28, 1989People Co., Ltd.Indoor jungle gym assembly
US4976360 *Jan 12, 1990Dec 11, 1990Rtc Industries, Inc.Merchandise display stand
US4988230 *Mar 7, 1989Jan 29, 1991Aluminum Company Of AmericaExtruded node
US4989519 *Jul 25, 1989Feb 5, 1991Intermetro Industries CorporationShelving system having two sets of locking tapers
US5056953 *May 9, 1989Oct 15, 1991Societe De Design Et D'agencementAssembly device for assembling dismountable or modular elements
US5059056 *Dec 31, 1990Oct 22, 1991Aluminum Company Of AmericaExtrdued node
US5435110 *Aug 4, 1993Jul 25, 1995Aluminum Company Of AmericaMethod of joining of hollow framework and associated frame assembly
US5517928 *Feb 16, 1994May 21, 1996Erdman; Anthony E.Joints for tubular-framed modular furniture
US5531464 *Dec 9, 1994Jul 2, 1996Maurer; Raymond N.Cart with snap-locking members
US5711230 *Dec 3, 1993Jan 27, 1998P. L. Parsons & Company Ltd.Platform system
US5904420 *Sep 15, 1998May 18, 1999Dedoes Industries, Inc.Frame for automatic paint stirring equipment
US5941183 *Jun 5, 1998Aug 24, 1999Formosa Saint Jose, Corp.Light weight portable combination table structure for exhibition use
US6000874 *Jun 18, 1997Dec 14, 1999Bulthaup Gmbh & Co. KuchensystemeFurniture system, in particular a kitchen furniture system
US6003724 *Sep 2, 1997Dec 21, 1999The Colman Group, Inc.Apparatus for securing a cup dispensing collar to a cup dispenser
US6042297 *Nov 7, 1997Mar 28, 2000Samjong InternationalLocking device for tent poles
US6062149 *May 26, 1998May 16, 2000Rosemount Office Systems, Inc.Modular frame worktop
US6062150 *Nov 14, 1996May 16, 2000Gunther SikoraSystem for producing three dimensional structures
US6101954 *Dec 17, 1998Aug 15, 2000Rosemount Office Systems, Inc.Worktop and frame construction
US6116437 *Dec 2, 1998Sep 12, 2000Avilion LimitedModular construction towel rack
US6199723Sep 8, 1999Mar 13, 2001The Colman Group, Inc.Apparatus for holding a cup in a cup dispenser
US6260488 *Jul 6, 1999Jul 17, 2001Seville Classics, Inc.Modular shelving
US6484437 *Feb 4, 2002Nov 26, 2002Ernest H. RobertsCoaster for shielding against crawling arthropods
US6863464 *Oct 14, 1999Mar 8, 2005Hilmar NiklausDetachable assembly of two elements
US6948435 *Mar 20, 2003Sep 27, 2005Honeyware, Inc.Corner joint and shelf module for use in light-duty all-plastic shelf units
US7024826Jul 14, 2003Apr 11, 2006University Of FloridaDevice for impeding a route of travel of crawling arthropods
US7229059 *Oct 20, 2003Jun 12, 2007Too Kool Recreation, LlcDetachable swimming pool shade and sport mounting
US7717943Jul 29, 2005May 18, 2010X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US7883288 *Sep 28, 2007Feb 8, 2011Minnis & Samson Pty, Ltd.Connector
US7886673 *Aug 10, 2006Feb 15, 2011Hermann KorteStorage device
US8012185Dec 4, 2007Sep 6, 2011X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US8016866Feb 22, 2010Sep 13, 2011X-Spine Systems, Inc.Pedicle screw system with provisional locking aspects
US8066745Apr 26, 2010Nov 29, 2011X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US8092504 *Nov 19, 2007Jan 10, 2012X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US8097025Mar 27, 2008Jan 17, 2012X-Spine Systems, Inc.Pedicle screw system configured to receive a straight or curved rod
US8142481Jan 21, 2010Mar 27, 2012X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US8147522Sep 17, 2009Apr 3, 2012X-Spine Systems, Inc.Bone fixation method
US8382806Nov 7, 2011Feb 26, 2013X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US8578956 *Jan 27, 2011Nov 12, 2013Jeffrey D. DankenbringRoof support assembly for collapsible shelter
US8602905 *Dec 22, 2011Dec 10, 2013Miracle Recreation Equipment Co.Playground element and method of mounting the same
US8613277 *Mar 15, 2010Dec 24, 2013Well traveled livingsOutdoor flame heater
US8615960 *Jul 23, 2010Dec 31, 2013Abengoa Solar Inc.Solar collector module
US8616138 *Sep 24, 2012Dec 31, 2013Kuang-Huan FuShelving system
US9057543Dec 30, 2013Jun 16, 2015Abengoa Solar LlcSolar collector module
US20050163559 *Jan 28, 2004Jul 28, 2005Jung-Shih ChangJointer for connecting rod members
US20050247851 *May 5, 2004Nov 10, 2005Kessler Seth SMolded pad for mounting electrical equipment
US20070043357 *Jul 29, 2005Feb 22, 2007X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US20070044691 *Aug 10, 2006Mar 1, 2007Hermann KorteStorage Device
US20070272641 *Aug 31, 2006Nov 29, 2007Magic Ad Production Co. Ltd.Multipurpose stereoscopic display shelf
US20080097457 *Dec 4, 2007Apr 24, 2008Warnick David RPedicle screw systems and methods of assembling/installing the same
US20080249576 *Mar 27, 2008Oct 9, 2008Hawkes David TPedicle Screw System Configured to Receive a Straight or Curved Rod
US20090087255 *Sep 28, 2007Apr 2, 2009Minnis & Samson Pty. LtdConnector
US20100003099 *Jul 13, 2007Jan 7, 2010Hella-Heike ZimmermannCorner Element
US20100063553 *Sep 17, 2009Mar 11, 2010X-Spine Systems, Inc.Bone fixation method
US20100074675 *Dec 17, 2007Mar 25, 2010Metal Work S.R.L.Joint for furniture structures
US20100152788 *Feb 22, 2010Jun 17, 2010X-Spine Systems, Inc.Pedicle screw system with provisional locking aspects
US20100179603 *Jul 15, 2010X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US20100204738 *Aug 12, 2010X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US20100236544 *Mar 15, 2010Sep 23, 2010Hall Jr Edwin LOutdoor flame heater
US20120165108 *Jun 28, 2012Miracle Recreation Equipment CompanyPlayground element and method of mounting the same
US20120192906 *Jan 27, 2011Aug 2, 2012Dankenbring Jeffrey DRoof support assembly for collapsible shelter
US20120217209 *Jul 23, 2010Aug 30, 2012Abengoa Solar Inc.Solar collector module
US20120269569 *Apr 21, 2011Oct 25, 2012Brooks Hamilton RoscoeConnecting spline for fluted plastic
US20130055604 *Feb 26, 2011Mar 7, 2013Bernardo HERMAN BARANCollapsible display structure
CN103671390A *Sep 24, 2012Mar 26, 2014何松柏Connecting element and combined storage shelf using connecting elements
EP0410325A2 *Jul 20, 1990Jan 30, 1991InterMetro Industries CorporationShelving system having two sets of locking tapers
EP0813832A2 *May 21, 1997Dec 29, 1997bulthaup GmbH & Co. KüchensystemeFurniture system, especially kitchen furniture system
EP0987451A2 *Sep 3, 1999Mar 22, 2000AemlImproved frame for automatic paint mixing machines
U.S. Classification108/158.11, 403/349, 211/182, 108/192, 403/171
International ClassificationF16B12/00, A47B87/00, F16B12/02, A47B87/02
Cooperative ClassificationA47B87/0215, F16B12/02
European ClassificationA47B87/02B1, F16B12/02