GB1587379A

GB1587379A - Framing system

Info

Publication number: GB1587379A
Application number: GB14804/78A
Authority: GB
Original assignee: Miranda Investments Ltd
Current assignee: Miranda Investments Ltd
Priority date: 1977-11-25
Filing date: 1978-04-14
Publication date: 1981-04-01
Also published as: DE2838163A1; IT7824849A0; FR2410163A1; FR2410163B1; IT1096765B; AU3541778A; CA1056897A; BE871836A

Description

(54) A FRAMING SYSTEM (71) We, MIRANDA INVESTMENTS LIMITED, a limited liability company, organised and existing under the laws of Canada, of Suite 1902, 2 Bloor Street West, Toronto, Ontario, Canada M4W 3J8, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to a framing system.

United States Patent No. 3,276,832 relates to a prefabricated sectional structure and in particular to a joining system by which horizontal members have each corner removably connected to an adjacent supporting post, consisting essentially of an elongated body having an outwardly facing front face and an inwardly facing longitudinal V-channel, said body having a plurality of modular spaced holes extending horizontally and centrally through the front face of the body in registration with the V-shaped channel. In this construction when the structure was assembled into a showcase, for example, the outwardly facing channel had to be covered by a closure member extending the full length of the post.

United States Patent No. 3,884,002 describes a system for connecting at least two movable partitions and employs a connector having a first axis extending from one of the partitions to the other. The connector is secured to one partition by means of a screw entered through the partition transversely through the connector.

The other partition is provided with a pin extending transversely to the axis of the connector, the pin and the connector being securely fastened in their respective apertures to secure the partitions in the assembled position.

British Patent No. 935,434 describes a corner structure for a section framework consisting of a -three-armed connector member for connecting three hollow frame -menibers of the extruded manufacture, in end-to-end relationship. Each arm is split adjacent the end thereof to be expanded by a self threading screw into frictional engagement with the hollow interior of the frame member into which it is inserted when assembled.

The invention provides a framing system for a knockdown structure consisting of prefabricated sections of horizontal frame members and vertical frame members, interconnected into a unitary structure, and connecting means joining a pair of horizontal members in abutting relationship, there being provided a connector securely connecting one end of a vertical frame member to the abutting ends of the pair of interconnected horizontal frame members, -the connector comprising an elongate body accommodated within a connector receiving cavity in the vertical frame member, said cavity having an entrance slot adjacent said one end of the vertical frame member, a screw-threaded extension extending axially from the body in a longitudinal direction and arranged to be screw-threaded into a screw-threaded orifice in the connecting means, said orifice being located in alignment with the abutting ends of the pair of horizontal members, and releasable means for securing tbe body in the cavity against longitudinal movement in the cavity in assembled position whereby the vertical frame member and horizontal frame member are rigidly secured together.

The invention will be described further, by way of example with reference to the accompanying drawings, it being understood that the following descr'iption is illustrative and not limitative of the scope of the invention. In the drawings: Fig. 1 is an exploded perspective view of a preferred framing system of the present invention; Fig. 2 illustrates the structure of Fig. 1 in assembled position with closing side panels in position; and Figs. 3, 4 and 5 illustrate alternative structures also in accordance with the invention.

Fig. 1 illustrates the several parts of the corner .of a knock-down furniture structure consisting essentially of a base 10, a corner post 11, horizontal frame members 12, 13 and, post connectors generally indicated by the numbers 14, 15.

The base 10 includes a mounting plate 16 extending diagonally across the base at an angle of approximately 450 and fastened to the base by screws 16a and 16b. The mounting plate 16 has a projecting portion 17 formed with a screw-threaded hole 18, the projecting portion 17 being reduced in width to form a neck 19 and shoulders 20, 21 which align with the outside edges 23, 24 of the base 10. Mounted on the outside edges 23, 24 of the base 10 are channel members 25, 26 which support the bottom edges of panels 27, 28 as shown in Fig. 2.

In the present embodiment, all of the conndctors are the same and consequently only one of them will be described. The connector 14 comprises a cylindrical body 29, an axial screw-threaded extension 30 of reduced diameter relative to the diameter of the body and a grub-screw 31 which is screw-threaded transversely through a screwthreaded orifice in the body.

In the embodiment illustrated in Figs. 1 and 2, the horizontal frame members 12, 13 are of extruded manufacture and are identical in cross-section. Each of the frame members 12, 13 consist essentially of a pair of U-shaped channels 32, 33 in side-by-side relationship, the channel 32 being designated the outer channel and the channel 33 being designated the inner channel. Adjacent the bottom of the outer channel 32 is a pair of guides 34, 35 projecting inwardly from opposite walls of the channel 32. This forms a support for a frame connector to be described later and an entrance slot 40 therebetween for the frame connectors and other purposes. The free ends of the walls forming the channel 32 are formed with inwardly facing grooves 37, 38. The channels 32, 33 receive the usual panelling which may consist of sheet metal, plastics, glass etc., which are used to enclose the structure.

As shown in Figs. 1 and 2, the ends of the frame members 12, 13 which are to be joined together, are mitred and the mitred ends are firmly joined together by a rightangled connector shown as an L-bar 36, one leg of which slides on guides 34, 35 of frame member 12 and the other leg on guides 34, 35 of frame member 13. Each leg of the connector is provided with two grub-screws 39. At the junction of the two legs of L-bar 36, there is provided a screw-threaded hole 41 for receiving the screw-threaded extension 30 of the connector 14 to be described. This aperture or hole 41 is similar to the screwthreaded hole 18. By tightening the grubscrews 39 with a suitable tool which may be entered through the slot 40, the abutting mitred ends can be frictionally joined together and thus make a tight union between the horizontal frame members.

The corner post 11 shown in Figs. 1 and 2 may also be of extruded manufacture. It has a pair of outside U-shaped channels 42, 43 disposed at right angles to each other, the channels 42, 43 being arranged to register with channels 32, in the frame members 12, 13 and channel members 25, 26 in the base 10 when assembled. The channels 42, 43 receive the edges of the usual enclosing panels. The inner walls 44, 45 of the channels 42, 43 are spaced apart, as shown in the drawings, to form an entrance slot 46 therebetween, which slot aligns with the plate 16 and the mitred joint of the frame members 12, 13. The entrance slot provides an entrance to an inner post-connector receiving cavity 47. This cavity has the same transverse cross-section as post connectors 14, 15. In the embodiment illustrated in Figs.

1 and 2, the post connectors 14, 15 are cylindrical in shape and the cavity 47 is of corresponding shape and size, so that the connector slidably fits into the cavity.

Fig. 3 illustrates a horizontal frame member which is formed of two pieces of rolled formed steel. The first piece of the horizontal frame member is made of L-angle iron to form the outer walls 48, 49 and the second piece is formed to have a hollow circular shaped wall 50, the ends of the wall terminating in wings 51, 52 which are at right angles to each other and form therebetween an entrance slot 53. When nested as shown, these two pieces are joined together by spot welding at intervals. The wings 51, 52 cooperate with outer walls 48, 49 to form panel receiving channels. When these two parts are thus assembled, they are similar to the post construction shown with reference to Figs. 1 and 2. The post connector is mounted in the hollow wall 50 with the grub-screw facing the entrance slot 53.

Fig. 4 shows a further variation in the shape. It is constructed essentially the same as that shown in Fig. 3 except the second piece has a hollow, substantial rectangular body 54 which nests into the corner of the horizontal frame and has the free ends of sides 59, 60 which are separated to form wings 55, 56 with an entrance slot 57 to provide an entrance into the rectangular post-connector receiving cavity 58 formed by the hollow rectangular body 54. In this illustrated embodiment, the post connector must be rectangular in cross-section as shown in Fig. 5, to slidably fit into the cavity 58.

The assembling of the frame members and the posts is clearly illustrated by Figs. 1 and 2. As all frames and posts are assembled in the same manner, it is only necessary to describe the assembly of one corner of the structure. In accordance with usual practice, the assembling would - start with mounting the posts on the base, and then continuing upwardly.Consequently, only the assembly at one corner has been - descnb'ed. The first step, of course, is to mount all the plates 16 on the base 10 at the respective corners and other required locations at the corners, the plate 16 being mounted at an angle of 45" with shoulders 20, 21 at the base edges and the extension 18 overhanging so that when post 11 is mounted in plate the channels 42, 43 of the post will align with the respective channels members 25, 26 on the base. The connector 15 - is then mounted in position by first threading extension 30 into threaded hole 18. The post 11 is then mounted by sliding the connector body 29 into cavity 46 and lowering post until the bottom end thereof is engaged by shoulders 20, 21.When so positioned grub-screw 31 is tightened to frictionally grip the inner wall of the cavity 47. This is done by a suitable tool entered through the entrance slot 46 to turn the screw until sufficiently tightened to bite into the cavity wall without distorting the post wall. After mounting all the posts on the base, the next step is to mount the horizontal frame members.

A pair of horizontal frame members 12, 13 are then connected together at the mitred corners by means of a L-bar. As shown, the L-bar 36 is slid into the slot formed by guides 34, 35 of the respective frame members and the grub-screws 33 tightened by the appropriate tool entered through the channels 32. A connector 14 is then mounted in place by threading extension 30 into threaded hole 41 with its grub-screw facing inwardly so that its tool receiving recess is facing inwardly. The frames are then lowered with the connector entering the cavity 47 and the frames are supported on top of the corner post 11. In this position, the flanges formed by grooves 37, 38 overlap the top end of the post and prevent twisting movement of the post. It is also mentioned that tool receiving recess of the grub-screw 31 should be positioned to face entrance slot 46. When the several parts are appropriately positioned, the grub-screw 31 is tightened to frictionally engage the inner wall of cavity 47.

Although the disclosure describes and illustrates preferred embodiments of the invention, it is to be understood that the invention is not restricted to these particular embodiments and variations can be made thereto within the scope of the following

Claims

claims. WHAT WE CLAIM IS:-

1. A framing system for a knockdown structure consisting of prefabricated sections of horizontal frame members and vertical frame members, interconnected into a unitary structure, -and connecting means joining a pair of horizontal members in abutting relationship, there being provided a connector securely connecting one end of a vertical frame member to the abutting ends of the pair of interconnected horizontal frame members, the connector comprising an elongate body accommodated within a connector receiving cavity in the vertical frame member, said cavity having an entrance slot adjacent said one end of the vertical frame member, a screw-threaded extension extending axially from the body in a longitudinal direction and arranged to be screw-threaded into a screw-threaded orifice in the connecting means, said orifice being located in alignment with the abutting ends of the pair of horizontal members, and releasable means for securing the body in the cavity against longitudinal movement in the cavity in assembled position whereby the vertical frame member and horizontal frame member are rigidly secured together.

2. A framing system as claimed in claim 1, further including a base and means mounting the vertical frame member on the base comprising a second connector having a cross-section corresponding in shape and size to the cross-section of the cavity to slidably fit into the cavity, said second connector further having a screw-threaded extension arranged to be screw-threaded into said base and a grub-screw threaded crosswise through the connector whereby on inserting the second connector into the cavity adjacent the base of the vertical frame member with the extension screw-threaded into a screw-threaded orifice in the base and then tightening the grub-screw frictionally to engage the wall of the cavity, the vertical frame member is mounted on the base.

3. A framing system as claimed in claim 1 or 2 and being for an article of furniture, each horizontal frame member and each vertical frame member being of extruded manufacture arranged, each vertical frame member having a longitudinal cavity extending throughout the length of the vertical frame member and the cavity having a longitudinal slot facing inwardly into the interior of the article of furniture.

4. A framing system as claimed in claim 2 or 3 when appendant to claim 2 and including a second screw-threaded orifice in the base member adjacent the corner directly below the said junction, the second connector corresponding to the first connector, fitted into said cavity adjacent the bottom end of the vertical frame member with its screw-threaded extension threaded into said second orifice whereby upon tightening the grub-screw, the second connector is secured in the last mentidned cavity and the vertical frame member is ' securely attached to the base.

5. A framing system for an article of furniture substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.