FRAME SYSTEM WITH RELEASABLE COUPLERS
Structure and method for assembling a structural frame for use in erecting temporary or permanent structures, which structural frame has a first component having at least one auxiliary elongated web section with an elongated entrance channel opening for allowing insertion into the hollow interior of a coupler component to which is attached a second component. The channel opening defines a wider gap portion through which a coupler component is inserted, and a narrower gap portion that secures the coupler therein attaching the coupler component to an end of the second component. The first and second components are firmly, yet removable, secured together by first inserting the first wider section of the coupler through the wider gap section of the entrance channel opening of the first component, and then sliding the coupler along the hollow interior of the first component until the wider section is located at and within the narrower gap section of the entrance channel opening of the first component.
The present invention relates to structural frame systems, especially those consisting of extruded-aluminum rails or rail-elements and post or post-elements connected together to form a structure, such as a booth, shelving, display, and the like.
Hitherto-known structural frame systems have consisted of particular types of frame members, such as posts and rails, which are joinable together by various means including clips, screws, or joiners to create frames for supporting other members, such as panels. A first such prior-art method has been used for supporting shelf panels, and comprises posts and rails where the posts may contain a series of relatively large holes or slots along their face by which rails containing protruding tabs at their ends are attached. In this method, a shelf-frame is constructed by joining the rails to the posts via the tabs being downwardly receivable within the holes or slots. This method is limited to the use of thin-wall materials, since the tabs, holes or slots are formed by processes such as stamping. Structural components compatible with these processes are typically thin-walled angle-sections, which are, structurally, less efficient than sections such as rectangular hollow sections. The assembled frame components are relatively limited in load-carrying capacity, and lack relative strength and stability. In addition, the completed frame is unsightly due to the exposed joining elements as well as vacant holes.
A second prior-art method employs posts and rails of hollow rectangular cross-section that are structurally stronger and more stable than the above-mentioned first prior-art method. This second prior-art method is limited in that the posts and rails may be joinable only by utilizing connectors which can be slid inside the ends of both sections. Consequently, a rail may not easily be joined into or removed from an already constructed frame. This method also lacks versatility and is cumbersome.
A third prior-art method employs rails and posts also of hollow rectangular cross-section and which have a continuous outside void or opening along the length of a side of the component. This void has a pair of continuous internal lips along the full length of the component. In this prior-art method, a multipart joiner is slid into the end of a rail, whereby a protruding part of the joiner or connector is slid into the void in the rail. This method relies upon the multipart joiner having shafts, housings, springs, screws and a single protruding bolt with a transversely-elongated head, with the rail and bolt assembly being rotated about the longitudinal axis of the rail after the bolt head has located in the void in the rail. A screw in the rail is hand tightened using a tool so that the shoulder of the bolt head can subsequently grip the lips of the void. This method is cumbersome and time-consuming to assemble, and the position of the rail along the post may need to be determined at each and every connection. This method also has unsightly exposed screws and requires special tools to assemble. In addition, owing to the use of a single bolt, the rail often lacks resistance to high torsion, and, since the end of the rail forcibly abuts against the face of the post surface to create a friction grip, marring may occur. Also, a rail may not be easily added or removed from a completed frame, since rails have depth in the longitudinal direction of posts.
A fourth prior-art method is similar to the above-mentioned third prior-art method, except that the joiner or connector has a reverse vise-arrangement at its exposed end within the rail, so that tightening of a grub-screw in the rail causes the reverse vise to open and thereby grip the lip inside the void in the post, so as to simultaneously grip the post and clamp the rail to the post via further tightening of the grub-screw with the tightening tool. This method may be equally cumbersome and time-consuming to assemble. In addition, the position of the rail along the post must be determined at each and every joinder. This method also employs exposed unsightly grub-screws, and requires tools to assemble. Also, since the end of the rail forcibly abuts against the face of the post to create a friction grip surface, marring of the post surface is possible, and, also, a rail is not easily added or removed from a completed frame since rails have depth in the longitudinal direction of posts.
SUMMARY OF THE INVENTIONIt is the primary objective to provide a structural frame system that has frame members and joining couplers which are quickly and releasably joinable to each other.
It is another primary objective of the present invention to provide a structural frame system that includes posts or post-components, and rails or rail-components, and joining couplers whereby the rails are simply and rapidly slidably connectable to the posts, and whereby the couplers are concealed.
It is yet another primary objective of the present invention to provide a structural frame system that is capable of resisting large torques, and where rectangular hollow cross-sectional components are provided with the post components having pre-determined rail-mounting positions, whereby the coupling components of the system of the invention do not rely upon friction mounting of the components parts.
The structural frame system according to the present invention comprises first elongated, rectangular cross-sectioned components or post elements, and second elongated, rectangular cross-sectioned components or rail elements that are releasably joined or connected to the first components. The first and second elongated components are capable of supporting other members, such as panels, and the like. The first and second components are releasably connected together by means of separate joining means or couplers being capable of securely and releasably joining at least one first elongated component and at least one second elongated component.
The releasable coupling means or coupling element of the invention consists of a first connector element of a first elongated post component that slidably receives therein a second connector element mounted to an end of a second elongated rail component. Each first post component is provided with at least one elongated connector-receiving section that extends substantially along one surface face of the post component. This elongated connector-receiving section is provided with an exterior-facing groove or slot extending at least most of the length thereof. The elongated connector-receiving component has a plurality of spaced-apart teeth, projections or protuberances that periodically protrude into the gap formed by the groove or slot, whereby alternative narrower and wider entrance-openings or gaps are formed along the length of the groove or slot, whereby a connector mounted at an end of a second rail-component may enter into the elongated connector-receiving component of the post component via one of the wider entrance-openings or gaps and slid along the interior of the elongated connector-receiving component until located at one of the narrower entrance-openings or gaps, where it is retained in place. In a modification, instead of the spaced-apart teeth, projections or protuberances being formed in the elongated connector-receiving section, one or more separate mounting sleeve elements are fixedly mounted within the hollow interior of the elongated connector-receiving section, which sleeve element defines a gap having a width less than the width of the gap of the elongated connector-receiving section.
BRIEF DESCRIPTION OF THE DRAWINGSThe present invention will better understood with reference to the accompanying drawings, wherein:
The structural frame system of the invention consists of elongated, hollow post components 10 as seen in
Referring now to
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Referring also to
The post component may also be provided in different shapes to suit a particular structure desired to be built. For example, instead of having a rectangular cross-sectional shape, a post component 60 may be triangular in cross section, as shown in
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The sleeve 126 is loosely mounted within one of the elongated web sections 114, 116 by means of cams or wedge-elements 122 located in the interior portion of the web section in close juxtaposition to the associated surface-face or wall of the elongated main section 112 from which the respective web section 114 or 116 projects, as seen in FIGS. 25A-27. The lateral distance between the two cams 122 is such as to loosely retain the sleeve member 126 and cause compression of the sleeve member 126 as it is slid in the web section 114 or 116 and reaches the cam members 122. It is noted that sleeve member 126 is inserted into a web section 114 or 116 at one of the free ends of the web section, and then slid toward the pair of cam members. The free edge-surfaces 128 may be squeezed toward each other by the camming members 122. In any case, the free edge-surfaces 128 are to provide the equivalent of the narrower-gap section 16″ of the first embodiment of
The sleeve 126 may also be further constrained within the web section by means of a pair of projections 115 that are part of the entrances lips or tabs 118, 118′, and 120, 120′, and face interiorly inwardly, as shown in
The interior of each elongated main section 112 of each post component 100 is also provided with a plurality of interiorly-projecting screw-mounting receptacles 150 located at each end of the elongated main section 112 for fixedly receiving screws or fasteners for mounting a coupler component 118 thereto, whereby post components 100 may be mounted parallel to each other in the manner shown in
Referring now to
In a modification the coupler component 118 of the second embodiment shown in
Referring now to
As described above, the narrow section 194 defines camming surfaces. The camming surface or wedge surface 194′ is used initially during installation of the coupler component with attached rail-component end in a mounting sleeve 200 by contacting the cooperating opposing camming surfaces 202, to force apart the flexible mounting sleeve to allow entry of the coupler component, until the camming or wedge surface 194 has cleared the camming surfaces 204, whereupon the sleeve returns to its original position, thereby clamping the coupler component therein. In order to force the wedge surface 194 through, a rubber mallet, or the like, is used to bang or hammer it through. When it is desired to disassemble the rail component from the post component, one hammers the rail component in the opposite direction, whereby the camming surfaces 194″ of the narrow section 194 of the coupler component cooperate with the cooperating canted surfaces 204 of the mounting sleeve to thereby force open mounting sleeve to allow removal of the rail end from the post component. It is noted that the length of the indented portion 230 of the narrow section 194 of the coupler component is greater than the length of the combined canted surfaces 202, 204 so that, after assembly, the canted surfaces 202, 204 may return to their normal positions, with the width of this indented portion 230 being less than the space or gap between the opposing tips of the canted surfaces 202, and being less than the space or gap between the opposing tips of the canted surfaces 204. It is also noted that the combined thickness of the wider section 192 and narrow section 194 is such that, after the coupler component has been inserted into a mounting sleeve of a post component by means of the lower camming bent end portion 192′ of the wider plate section 192, the narrower section 194 is substantially located in the entrance of the mounting sleeve 200 defined between the free edge-surfaces thereof from which project the cooperating canted surfaces 202, 204, in the same manner as the embodiments shown in
Referring now to
It is, also, noted that there may be provided a rail component 24 or 180 that, rather than being rectilinear in cross section, is round, or even an oval shape may be used.
Referring to
While specific embodiments of the invention have been shown and described, it is to be understood that numerous changes and modifications may be made therein without departing from the scope and spirit of the invention as set forth in the appended claims.
Claims
1. A structural frame system for use in erecting temporary or permanent structures comprising:
- a first component comprising an elongated main section defining a longitudinal axis and having a cross section defining a plurality of walls, said elongated main section having at least one elongated web section connected to and projecting from at least one wall of said elongated main section and having a plurality of wall surfaces and a first end and a second end and a longitudinal axis substantially parallel to said longitudinal axis of said main section, said at least one elongated web section comprising an elongated entrance channel opening located opposite to the wall of said main elongated section to which said at least one elongated web section is connected for allowing insertion into the hollow interior of said at least one auxiliary elongated web section of a coupler component; the entrance channel opening defining a wider gap portion through which a coupler component is inserted into the hollow interior and a narrower gap portion that restrains a coupler component in the hollow interior; a second component having a first end and a second end, and at least one coupler-component mounting element mounted to at least one of said first and second ends of said second component; and at least one coupler component for connection to said at least one coupler-component mounting element and for reception in the entrance channel opening of said at least one auxiliary elongated web section of said at least one first component; said at least one coupler component comprising a first wider section and a second narrower section connected to said wider section, said wider section being inserted through said first wider gap portion and thereafter slid in the hollow interior of said auxiliary web section until being located at said narrower gap portion for retention therein, whereby said second narrower section may project at least partially outwardly from said narrower gap portion for mounting said at least one second component to said first component.
2. The structural frame system for use in erecting temporary or permanent structures according to claim 1, wherein said plurality of wall surfaces of said at least one auxiliary elongated web section comprises a first side wall extending from one end of said at least one of said plurality of walls from which said at least one auxiliary elongated web section projects, and a second side wall parallel to said first side wall and extending from the other end of said at least one of said plurality of walls from which said at least one auxiliary elongated web section projects, each of said first and second side walls comprising at least one elongated interiorly-projecting ear, said ears defining therebetween said narrower gap portion.
3. The structural frame system for use in erecting temporary or permanent structures according to claim 1, wherein said wider section of said at least one coupler component comprises a stop member for limiting the longitudinal passage of said coupler component past said narrow gap portion for assisting in retaining said coupler component therein.
4. The structural frame system for use in erecting temporary or permanent structures according to claim 3, further comprising at least one locking retaining element for locking said at least one coupler component in said hollow interior of said at least one auxiliary elongated web section at said narrower gap portion thereof, said at least one locking retaining element having a first portion capable of being mounted to said wall of said main elongated section to which said at least one auxiliary elongated web section is connected and a second portion operatively connectable to a portion of said coupler component for urging said coupler component toward against said narrower portion of said entrance channel opening.
5. The structural frame system for use in erecting temporary or permanent structures according to claim 1, comprising a plurality said first components, a plurality of second components, a plurality of coupler components, and a plurality of coupler components.
6. The structural frame system for use in erecting temporary or permanent structures according to claim 5, wherein each said first component consists of a main elongated section defining a longitudinal axis and having cross-sectional shape defining a plurality of walls and a first end and a second end; and a plurality of auxiliary elongated web sections connected to and projecting from corresponding respective said walls of said plurality of walls and each said web section defining a longitudinal axis and a having cross-sectional shape defining a plurality of wall surfaces and a first end and a second end, said longitudinal axes of each said main elongated section and said elongated web section being parallel to each other; each said auxiliary elongated web section comprising a said elongated entrance channel opening located opposite to said corresponding respective wall of said main elongated section to which it is connected for allowing insertion into the hollow interior thereof said of a coupler component.
7. The structural frame system for use in erecting temporary or permanent structures according to claim 5, wherein each of said plurality of wall surfaces of each of said plurality of auxiliary elongated web sections comprises a first side wall extending from one end of said corresponding respective wall from which said auxiliary elongated web section projects, and a second side wall parallel to said first side wall and extending from the other end of said corresponding respective wall from which said auxiliary elongated web section projects; each of said first and second side walls comprising at least one elongated interiorly-projecting ear, said ears defining therebetween said narrower gap portion.
8. The structural frame system for use in erecting temporary or permanent structures according to claim 1, wherein said coupler-component mounting element comprises receptacle-openings for receiving fasteners passing through said coupler component, the fasteners being received in said receptacle-openings for fixedly securing said coupler component to a said end of said second component.
9. The structural frame system for use in erecting temporary or permanent structures according to claim 1, further comprising at least one slidable mounting sleeve slidable in the hollow interior of said at least one auxiliary elongated web section, said slidable mounting sleeve defining entrance channel along one surface thereof such as to form a first leg portion and a second leg portion, said entrance channel being in alignment with said entrance channel opening of said auxiliary elongated web section; said entrance channel being narrower in width than said entrance channel opening of said auxiliary elongated web section so that said first and second leg portions close off part of said entrance channel opening of said auxiliary elongated web section to thus define said narrower gap section of said entrance channel opening of said auxiliary elongated web section; and at least one actuating and mounting element for actuating and retaining said at least one mounting sleeve in said hollow interior of said auxiliary elongated web section in an actuated state; said first and second leg portion being capable of being moved toward each other into a clamping state.
10. The structural frame system for use in erecting temporary or permanent structures according to claim 9, wherein said at least one actuating and mounting element consists of at least one chosen from the following group: an expandable bridge element having ends that grip the interior surface of said at least one auxiliary elongated web section; diametrically opposed camming elements projecting from opposite side surfaces of said at least one auxiliary elongated web section that actuate said mounting sleeve in said hollow interior by moving said first and second leg portions toward each other; and a pin element that extends through a portion of web section for maintaining said first and second leg portions in a clamping state.
11. The structural frame system for use in erecting temporary or permanent structures according to claim 9, further comprising at least one retaining element for retaining said coupler component in said mounting sleeve, said at least one retaining element having a first portion mountable to a rear portion of said mounting sleeve in close juxtaposition to said wall of said main elongated section to which said at least one auxiliary elongated web section is connected, and a second portion extending away from said first portion toward said entrance channel opening for biasing engagement with a portion of said coupler component positioned in said mounting sleeve for urging.
12. The structural frame system for use in erecting temporary or permanent structures according to claim 9, wherein said first wider section of said coupler component comprises a bent end portion facing away from second narrower section, said bent end portion contacting a forward portion of said mounting sleeve in a camming action and entering into the interior of said mounting sleeve for pulling an attached end of a second component against the juxtapositioned surface of said first component as said wider section of said coupling component is slid into said mounting sleeve.
13. The structural frame system for use in erecting temporary or permanent structures according to claim 12, comprising a plurality of first components, a plurality of second rail components, and a plurality of coupler components; and further comprising at least one double coupler consisting of a pair of coupler components mounted side by side such that said second narrower sections face each other; said double coupler further comprising a spacer mounted between said facing narrower sections, said double connector being used to mount two first components together parallel to each other, each of said two first components also comprising at least one said mounting element mounted to at least one of the ends thereof.
14. The structural frame system for use in erecting temporary or permanent structures according to claim 9, wherein said narrower section of said coupler component comprises first camming surfaces, and said first and second leg portions of said mounting sleeve having cooperating second camming surfaces for cooperating with said first camming surfaces during mounting of said coupler component in said mounting sleeve, said first and second camming surface forcing said first and second leg portions apart to widen said entrance channel to allow insertion of said coupler component therein and for retaining said coupler component therein after said first camming surfaces have cleared said second camming surfaces;
- said narrower section of said coupler component further comprising third camming surfaces, and said first and second leg portions of said mounting sleeve further having cooperating fourth second camming surfaces for cooperating with said third camming surfaces during removal of said coupler component from said mounting sleeve, said third and fourth camming surface forcing apart said first and second leg portions to widen said entrance channel to allow removal of said coupler component therein and an attached second component from connection with a first component.
15. The structural frame system for use in erecting temporary or permanent structures according to claim 5, wherein each of said first components comprises an elongated post component, and each of said second components comprises an elongated rail component; each said post component comprising a main elongated section defining a longitudinal axis and a first end and a second end, at least one auxiliary elongated web section connected to and projecting from at least one of walls of each said first component and defining a longitudinal axis and a having cross-sectional shape defining a plurality of wall surfaces and a first end and a second end, said longitudinal axes of said main elongated section and said elongated web section being parallel top each other, said at least one auxiliary elongated web section comprising an elongated entrance channel opening located opposite to said wall of said main elongated section to which said at least one auxiliary elongated web section is connected for allowing insertion into the hollow interior of said at least one auxiliary elongated web section of a coupler component;
16. A coupler for use in a structural frame system used for erecting temporary or permanent structures, which coupler is attached to an end of a first component and received in a hollow interior of a second component, said coupler comprising:
- a first wider plate section for entrance into an entrance channel opening of the second component and for subsequent sliding movement in the hollow interior of the second component, said first wider section having a width greater than the opening of a narrower gap portion of the entrance channel opening, whereby the coupler is restrained therein; said coupler component further comprising a second narrower plate section connected to said first wider plate section in face-to-face contact, said second narrower plate section being capable of projecting at least partially through the narrower gap portion of the entrance channel opening of the second component, whereby an end of a first second component affixed to said coupler projects outwardly from the entrance channel opening.
17. The coupler for use in a structural frame system used for erecting temporary or permanent structures according to claim 16, wherein said wider plate section comprises a stop member for limiting the longitudinal passage thereof past a narrower gap portion of an entrance channel opening; said first wider plate section comprising a bent end portion facing away from second narrower plate section for contacting a forward portion of a mounting sleeve in a camming action and entering into the interior of the mounting sleeve for pulling an attached end of a first component against the juxtapositioned surface of a second component as said wider plate section is slid into the mounting sleeve;
18. The coupler for use in a structural frame system used for erecting temporary or permanent structures according to claim 16, wherein said coupler is a double coupler consisting of a pair of couplers mounted side by side such that said second narrower sections face each other; said double coupler further comprising a spacer mounted between said facing narrower sections, said double connector being used to mount two first or second components together parallel to each other.
19. The coupler for use in a structural frame system used for erecting temporary or permanent structures according to claim 16, wherein said narrower plate section comprises first camming surfaces and second camming surfaces for cooperating with mating surfaces associated with a mounting sleeve, said first and second camming surface forcing the mounting sleeve open during assembly and disassembly of the coupler thereto for connecting and disconnecting one component from another.
20. A method of assembling a structural frame for use in erecting temporary or permanent structures, which structural frame comprises a first component having at least one elongated web section connected to and projecting from at least one wall thereof and having a plurality of wall surfaces and a first end and a second end, the at least one elongated web section comprising an elongated entrance channel opening located opposite to the wall of the main elongated section to which the at least one elongated web section is connected for allowing insertion into the hollow interior of the at least one auxiliary elongated web section of a coupler component; the entrance channel opening defining a wider gap portion through which a coupler component is inserted into the hollow interior and a narrower gap portion that restrains a coupler component in the hollow interior; a second component having a first end and a second end, and at least one coupler-component mounting element mounted to at least one of the first and second ends of the second component; and at least one coupler component for connection to the at least one coupler-component mounting element and for reception in the entrance channel opening of the at least one auxiliary elongated web section of the at least one first component; the at least one coupler component comprising a first wider section and a second narrower section connected to said wider section, said method comprising:
- (a) attaching the coupler component to an end of the second component;
- (b) inserting the first wider section of the coupler through the wider gap section of the entrance channel opening of the first component;
- (c) sliding the coupler along the hollow interior of the first component until the wider section is located at and within the narrower gap section of the entrance channel opening of the first component;
- (d) said step (c) comprising inserting the second narrower section of the coupler into and projecting out from the narrower gap section;
- (e) securing the coupler within the hollow interior at the narrower gap section of the first component.
International Classification: E04B 1/38 (20060101);