GB2422154A - Joint device for roof frame - Google Patents

Joint device for roof frame Download PDF

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Publication number
GB2422154A
GB2422154A GB0427781A GB0427781A GB2422154A GB 2422154 A GB2422154 A GB 2422154A GB 0427781 A GB0427781 A GB 0427781A GB 0427781 A GB0427781 A GB 0427781A GB 2422154 A GB2422154 A GB 2422154A
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GB
United Kingdom
Prior art keywords
joint device
hip frame
rafter
engageable
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0427781A
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GB0427781D0 (en
Inventor
John Francis Sales
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AZTEC CONSERVATORY ROOF SYSTEM
Original Assignee
AZTEC CONSERVATORY ROOF SYSTEM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AZTEC CONSERVATORY ROOF SYSTEM filed Critical AZTEC CONSERVATORY ROOF SYSTEM
Priority to GB0427781A priority Critical patent/GB2422154A/en
Publication of GB0427781D0 publication Critical patent/GB0427781D0/en
Publication of GB2422154A publication Critical patent/GB2422154A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/0046—Loggias
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/06—Constructions of roof intersections or hipped ends
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/06—Constructions of roof intersections or hipped ends
    • E04B7/063—Hipped ends
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
    • E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
    • E04D3/08—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/06—Constructions of roof intersections or hipped ends
    • E04B7/063—Hipped ends
    • E04B2007/066—Hipped ends for conservatories
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
    • E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
    • E04D3/08—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars
    • E04D2003/0868—Mutual connections and details of glazing bars

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

A joint device, for interconnecting a jack rafter 2 to a hip beam 1, comprising a first joint part 8 connectable to or engageable with a jack rafter 2, a second joint part 10 having a locating portion locatable on or connectable to a hip beam 1. Said second part 10 having an engageable portion, and securing means, such as a bolt or screw, for interconnecting said first and second joint parts, which, in use, draws, the locating portion of the first part 8 towards the engageable portion of the second part 10 to thus draw the two parts together in an abutting relationship,

Description

CONSERVATORY ROOF FRAME AND JOINT DEVICE
The present invention relates to a conservatory roof framework and joint device and particularly to means for connecting a so-called transom frame or jack rafter to a hip frame or main beam.
Often with conservatories having a horizontal ridge beam less than the length of the side walls, a hip bar or hip frame will be provided extending from the end of the ridge beam inclinedly to a corner of an eaves beam or ring beam and for shorter jack rafters to be located to extend from the eaves beam to join the hip beam or hip frame at an angle other than 900 and to act, with the hip frame, as glazing bars for the thus formed framework structure and such jack rafters each have an angled end face where it joins the hip frame and a connection device or joint device is needed to hold the two together. The hip frames and jack rafters often have a generally inverted T-shaped section with oppositely located generally U-shaped section glazing/drainage channels forming the lower crosspiece and the upwardly extending stem comprising a planar or plate-like part, in use, extending inclinedly upwardly.
It is well known for jack rafters having ends which abut the main frame or hip frame cut at an angle and, hitherto, difficulty has been experienced in providing a satisfactory means of connection of the jack rafter to the hip frame.
One known means of securing a jack rafter to a hip frame is illustrated in Figs. 1 and 2 and comprises securing to the upwardly extending stem (2B) of the jack rafter (2) a first connecting part (A) comprising an elongate, flat rectangular extruded aluminium plate portion secured to the rafter by rivets and extending beyond the end of the rafter and having a part cylindrical or slit tubular coupling portion (B) integrally formed at one end and slightly offset such that the central longitudinal axis of the tubular portion (as does that of securing bolt (C)) extends generally parallel to the plane of the plate portion and lies in the same plane as that of the main plate-like portion forming the upwardly extending stem (2B) and transversely to the lower crosspiece of the rafter (2) formed by the glazing channels (2A) thereof. A second part (D) of this known securing means is an aluminium extrusion comprising a generally U-shaped portion positioned in a glazing/drainage channel (5) which forms part of the lower crosspiece (5, 6) of the hip frame (1) and said U-shaped portion has a larger plate portion extending upwardly and inclinedly therefrom to lie against one face of the main upwardly extending stem portion (3) of the hip frame (1) and is secured thereto by riveting.
The head of inverted threaded bolt (C) is slideable into the U-shaped channel (5) from one or the other end of said channel and prevented from being removed laterally or upwardly by oppositely and inwardly directed flange portions of the channel (5) but wherein the threaded portion of the bolt extends out of said channel and through the part-cylindrical or tubular portion of the first mentioned part and to be securely connectable thereto by a nut and washer (Cl). The bolt generally extends parallel to the outer upwardly extending wall of the drainage/glazing channel (5) (not inclinedly thereover and the projection of its axis (axis of rotation) does not intersect the stem 3 of the hip frame).
In this known arrangement, difficulty is often experienced in assembling the components and providing the joint since the second part is held in position against removal by the riveting thereof to the plate like part of the hip frame which first requires drilling apertures in the correct position and then riveting.
The first part similarly has to be located on the plate-like part of the jack rafter by first drilling two apertures in the plate of the jack rafter and then riveting the rectangular plate to it, and has its tubular portion which is integrally formed at the end of the planar plate portion i.e. with its longitudinal axis in the plane of the stem of the rafter, placed over the threaded part of the bolt extending from U-shaped portion in the channel portion of the hip frame part and lowered thereabove to encompass the threaded portion and is simply held against upward axial displacement by the action of the nut thereabove being tightened on the thread of the bolt to prevent removal, which action does not urge the main body of the jack rafter (2) and hip frame together but merely holds such juxtaposed in loose abutting relationship resulting from draping over the screw from above. The resultant joint is also prone to misalignment and does not provide a particularly secure interconnection of the two frame members and is not particularly suitable for DIY use.
Examples of known roof frameworks are disclosed in GB 2323107, in Fig. 8 of US 2004/0045228 Al and in GB 2395496 A. It should be noted that in the prior art arrangements, the longitudinal axis of the elongate interconnection means (e.g. screw or pivot post and of the tubular part on the rafter) extends transversely or substantially transversely to the longitudinal axis of the jack rafter and of the glazing/drainage channel of the hip frame.
As mentioned so-called "hip frames" normally comprise an extrusion of approximately I-shaped or probably more resembling an inverted 1-shaped section wherein the normally main upwardly extending stem (often planar wall) has, at its lower end, a glazing panel supporting portion preferably of generally U-shaped section i.e. a glazing/drainage channel extending on either side in opposite directions and often inclinedly to the stem and each said channel has an inwardly directed flange extending from the top of its outer wall towards the stem (and on the normally outer surface of which a decorative plastics covering is provided), and which supports the glazing panels. Jack rafters are similarly constructed although without inclined glazing channels and the ends have to be cut to an appropriate angle, such as 450, to hopefully, in prior art devices, abut the outer surfaces of channel forming parts of the hip frame. The U-shaped section channel parts also act as drainage channels.
It is an object of the present invention to provide conservatory roof framework including an improved interconnection or joint device for connecting the jack rafter to the hip frame and also to provide such an improved joint device per se wherein securement causes the adjacent jack rafter and main frame or hip frame to be advantageously pulled together in firm abutment.
According to the present invention there is provided a joint device, such as for interconnecting a jack rafter to a hip beam of conservatory roof frame, comprising a first joint part connectable to or abuttable against a glazing bar or jack rafter, a second joint part preferably shaped and dimensioned so as to have a locating portion locatable under the inwardly directed flange of a glazing-panel- Support channel of a main beam or hip frame and/or locatable against the upstanding outer wall or flange of a glazing-paneIsupport channel of a main beam or hip frame or otherwise being a locating portion connectable to the hip frame, and said second part having an engageable portion, preferably extending upwardly from the locating portion when such is located in said channel, and securing means interconnecting said first and second joint parts and operable such as, in use, to draw the first part relatively towards the normally upwardly extending engageable portion of the second part to draw the jack rafter towards the main beam or hip frame and to clamp the normally upstanding outer wall or flange of the glazingpaneIsupporting channel of the main beam or hip frame between the lower locating portion of said second part and the angled end of the jack rafter.
Preferably the first part is a plate or strip having a portion, preferably planar, securable against an upright/upwardly extending planar plate-like part of the jack rafter and, when secured to the rafter extends slightly beyond the angled or inclined end of the rafter and, preferably, has an end abutting portion which is preferably angled and which is preferably apertured to receive securing means, such as a threaded bolt or screw. The securing means is engageable with the engageable means of the second part which preferably comprises an upwardly extending engageable portion of the second part and the securing means is preferably a screw or bolt threadingly engageable in a threaded aperture in said engageable means of the second part. Whilst the preferred bolt or screw securing means will normally extend through an unthreaded portion in the first part and therefrom to engage in the second part, a reverse possibility is considered possible if there is sufficient room or if the upright stem part of the main frame or hip frame is apertured to permit screwing.
More generally, the first part preferably has a portion abutable against the upright or planar plate-like part of the stem of the jack rafter frame and preferably such when the angled end of the jack rafter is adjacent the channel of the hip frame, is such as to extend with spacing above the upper edge of the glazing channel of the hip frame and provide an abutment surface there such that on engagement of the securing means (normally screw) with the engagementJabum portion of the second part and with increased activation or operation of the securing means, the abutment faces of the first and second parts are pulled together and such that the inclined end of the jack rafter is forcibly urged against the channel of the hip frame by the compressive or other forces.
It is even envisaged that a loose fitting spacing/abutment block may sit or fit on the end of the jack rafter and a screw run through the upright or stem of the jack rafter and through a preferably unthreaded aperture in such block to engage in a threaded aperture in the second part to effect the clamping action.
Preferably the first part will have a rib or projection on its side facing the main part of the jack rafter to facilitate location preferably such that preformed apertures in the first part align with prepared apertures in the upwardly extending planar plate-like part of the jack rafter for riveting or bolting or the like.
The second part will preferably be substantially L-shaped in section (which may be part of a U-shaped section portion) with the main stem of the L being the upwardly extending part forming said engageable and abuttable portion and the lower horizontal and smaller portion or crosspiece being the engageable portion which is engageable in the glazing/drainage channel of the main beam or hip frame. Preferably, the corners and/or edges of said lower horizontal portion which are adjacent the channel wall to have the rafter end pressed against the outer surface will be rounded or curved to facilitate juxtaposition of the components to allow for irregularities in assembly of the framework and the part such as to space its stem from the flange edge such that said second part may rotate or pivot or skew against the drainage channel walls and need not necessarily have its main abufting part precisely parallel to the main upwardly extending stem part of the main beam or hip frame or generally the longitudinal axis thereof. This alignment possibility will provide a degree of tolerance for manufacturing and/or assembly irregularities.
The present invention is particularly suitable to facilitate the erection of conservatoty roof frames/framework provided in so-called "flat pack" form for DIY purposes or the like. It also facilitates professional assembly.
Instead of the mentioned preferred securing means, such as a screw or bolt, other means for securing the first and second parts together may be provided such as spring clips, clamps increasingly engaging dovetail joints or inclined ramp-like or wedging portions causing progressive movement together of the components with compressive force abutment.
It should be noted that in the present invention the securing means when in the preferred form as a threaded bolt or screw, preferably extends transversely to the side walls defining the U-shaped section channel or to the main upright or stem of the hip frame. Also, when in the form of a screw or bolt the axis of rotation thereof i.e. its longitudinal axis is not in the plane of nor parallel to the plane of the stem of the rafter but rather inclined or transverse to such and the extension of its axis preferably intersects the stem of the hip frame.
Also according to a broader aspect of the present invention there is provided a joint device, such as for interconnecting a jack rafter to a hip beam or frame of conservatory roof frame, comprising a first joint part connectable to or engageable with a jack rafter, a second joint part having a locating portion locatable on or connectable to a hip frame with said second part having an engageable portion, and securing means such as a bolt or screw, for interconnecting said first and second joint parts and operable such as, in use, to draw, relatively, the locating portion of the first part towards the engageable portion of the second part to thus draw the two parts together in preferably firmly abutting relationship, and to pull the jack rafter towards and against the main beam with the main axis of the jack rafter moving towards that of the hip frame or the hip frame moving along its main axis towards the hip frame in the securement by the interconnection means with the end of the rafter being urged against a side part of the hip frame.
According to the present invention there is provided a conservatory roof framework including a joint device having any of the features as herein described.
Also according to a broad aspect of the present invention there is provided a conservatory roof framework or an assembly of components therefor including a jack rafter connected to a hip frame by a joint device comprising a first joint part connectable to or engageable with a jack rafter and a second part connectable to or engageable with a hip frame and interconnection means between the first and second parts for urging the end of the jack rafter against a sidewall of a glazing/drainage channel of the hip frame with compressive force and for securing the first and second parts together.
Further according to the present invention there is provided a framework for a conservatory including a joint device interconnecting two frame members such as a jack rafter to a hip beam; said joint device comprising a first joint part detachably connectable to or abutting against a glazing bar or jack rafter, a second joint part preferably shaped and dimensioned so as to have a locating portion locatable under the inwardly directed flange of a glazing-panelsuppo channel of a main beam or hip frame and/or located against the upstanding outer wall or flange of a glazing-panelsupport channel of a main beam or hip frame or otherwise being a locating portion connectable to the hip frame, and said second part having an engageable portion, preferably extending upwardly from the locating portion when such is locatable in said channel, and securing means interconnecting said first and second joint parts and operable such as, in use, to draw the first part relatively towards the normally upwardly extending engageable portion of the second part to draw the jack rafter towards the main beam or hip frame and to clamp the normally upstanding outer wall or flange of the glazing- panel-supporting channel of the main beam or hip frame between the lower locating portion of said second part and the angled end of the jack rafter.
The interconnection of joint device of the invention can be generally used for interconnecting any two glazing bars of a conservatory framework.
The present invention also extends to a roof whenever including a framework and interconnection means or joint device as herein disclosed.
The invention will be described further, by way of example, with reference to the accompanying drawings, in which:- Fig. I is a perspective view of a known arrangement of connecting a jack rafter to a hip frame; Fig. 2 is an exploded view of the known components of parts of Fig. I; Fig. 3 is a plan view of the components of the connecting or joint device according to the present invention; Fig. 4 is a side elevation of the component parts of Fig. 3 from the nearest side of Fig. 3 with a hip beam and jack rafter schematically indicated in broken lines; Fig. 5 is an exploded perspective view from above of the joint device of Figs. 3 and 4 located showing the connecting region of a jack rafter with a hip frame (forming part of the roof framework of a conservatory); and Fig. 6 is a view similar to Fig. 5 wherein the components are closer together with the lower end wall of the second joint part in the glazing/drainage channel.
In the drawings the framework of a conservatory is not illustrated to any extent as such is well-known and all that is illustrated are fragmentary parts of a hip frame I and a jack rafter 2. A known, prior art arrangement is illustrated in Figs. I and 2 and has been described previously. The hip frame 1, in the example, is of generally inverted T- shape section with the upwardly extending stem 3 being a planar plate- like portion with an upper channel portion (4) for mounting of components and with the lower crosspiece comprising two glazing channel portions 5, 6 also acting as drainage channels and for illustrative purposes in Fig. 4 only shown at right angles to stem 3 although in practice would be angled downwardly relative thereto in known manner and such that the lower surface 2A of the jack rafter will be flush with the lower surface 5A of channel portion 5. (The angling being difficult to illustrate). The channel portions 5, 6 have upwardly extending outer side walls 5B, 6B and inwardly directed upper rims or flanges 5C, 6C. The jack rafter 2 is of a similar construction except that the glazing channels thereof are at 900 to the stem (as 5, 6 to 3, 4). The glazing channel portion may be provided with a plastics outer covering (not shown).
The joint device 7 of the invention for connecting jack rafter 2 to hip frame I as illustrated in the embodiment of the drawings comprises a first part 8 comprising an elongate rectangular flat strip or planar plate portion 8A having aperture 8B for enabling securement e.g. by riveting 8B, to the main upright portion 2B of a jack rafter 2. Portion 8 projects beyond the end of the jack rafter, which is cut at 45 in the embodiment, and the plate portion 8 runs into an angled or inclined end connecting portion 9 which is also angled at 45 in this embodiment so as to extend substantially parallel to the main upright or stem 3 of the adjacent hip frame I to which it is to be connected with. A second joint part which includes a substantially L-shape in its form is in this embodiment of channel section or shallow U-shaped section having a main upwardly extending stem portion 11 which has an aperture 12 which is threaded to receive a securing means in the form of a threaded bolt or screw 13 which passes through an unthreaded aperture 14 in the angled end connecting portion 9 of the first part 8 such that when tightening the screw 13 the two parts 8, 10 are brought together such that there juxtaposed flat surfaces are pulled together in abutting relationship by compressive forces. The second part 10 has upper and lower wall portions or flanges 15, 16 extending from the crosspiece or stem 11 and the lower flange 15 is insertable in the glazing channel 5, 6 of the hip frame from above at any position therealong and engages under the end of the inwardly directed rim or flange 5C, 6C which extends from the top of the outer walls 5B, 6B thereof such that upon tightening of the screw extending through aperture 14 in connect to portion 9, the first part 8 together with the jack frame 2 to which it is connected moves towards the second part 10 such that the inclined end of the rafter 2 abuts the outer surface of the walls 6A, 6B (in fact normally a decorative plastics covering is applied thereover) of the glazing/drainage channels 5, 6 of the hip frame I in secure manner to provide a strong and firm interconnection in simple manner. The free ends of the flanges 15, 16 have corners iSA, 16A which are rounded so as to enable the second part 10 and in fact by means of the rounding on the lower wall 15 (as shown) to pivot slightly within the drainage channel 5, 6 should any re-alignment be necessary to accommodate any irregularities and the inter abutment of the jack rafter and the hip frame.
A ridge 17 (or projections) is provided on the first part 8 to enable it to be accurately located on the jack rafter with holes 8B in plate portion 8A of the first part 8 being aligned with the apertures (not shown) provided in the jack rafter 2 for connection together by riveting or bolting.
It is to be appreciated that the main planar plate portion 8A of the first part 8 runs into the connecting and abutting portion 9.
It will be readily appreciated that the abutting face of the connecting portion 9 when located in the jack rafter 2 will have to be spaced from the inclined end thereof (and will generally be parallel to the end faces thereof) relative to the securing position of the second part 11 in the channel 5 of the hip frame I such that when the screw is inserted and turned to pull the two parts 8, together, and into abutment, the inclined end 2C of the jack rafter 2 is drawn firmly and securely against the outer surface of the drainage/glazing channel 5, 6, so as to be urged thereagainst by the compressive or other forces exerted by the action of the screw. Normally the connecting portion will be located at least partly over the inwardly directed flanges 5C, 6C. Thus, with the channels in practice being downwardly inclined to the stem 3, channels 2A of the rafter 5, 6 of the hip frame are pulled together in the same plane.
It will be appreciated that the principle of operation of the preferred embodiment which distinguishes it from the prior art, is that elongate screw 13 extends over the outer side wall 5B of the glazing/drainage channel 5 and with its
I
longitudinal axis inclined relative to the outer wall of the U-shaped drainage channel 5 and the projection of said axis intersects the upright stem 3 of the hip frame 1 (unlike the axis of the nut and bolt of Figs. I and 2). Thus the securing means acts to pull the jack rafter along its axis towards the hip frame. Also it will be appreciated that the second joint part of the invention is not fixed or secured by rivets, screws or other mechanical coupling devices to the hip frame.
The abutting face of portion 8 should extend sufficiently from the end of rafter 2 such that when tightened against the adjacent face of upright part 11 of the second part 10, the upwardly extending outer wall of the channel 5, 6 is clamped between the end of the lower wall 15 of the second part 10 and the inclined end face of jack rafter 2 such that the part 10 cannot twist out of the channels 5, 6.
The first part when in the form of an angled plate will have to be provided with appropriately arranged or left-or right-handed format depending whether being located in channel 5, 6.
The first and second parts 8, 10 will normally be formed of extruded aluminium as will the hip frame.
It will be appreciated that the present invention provides the advantage of simple construction and assembly and firm and secure interconnection of the jack rafter to the hip frame.

Claims (25)

1. A joint device, such as for interconnecting a jack rafter to a hip beam or frame of conservatory roof frame, comprising a first joint part connectable to or engageable with a jack rafter, a second joint part having a locating portion locatable on or connectable to a hip frame with said second part having an engageable portion, and securing means, such as a bolt or screw, for interconnecting said first and second joint parts and operable such as, in use, to draw, relatively, the locating portion of the first part towards the engageable portion of the second part to thus draw the two parts together in preferably firmly abutting relationship, and to pull the jack rafter towards and against the main beam with the main axis of the jack rafter moving towards that of the hip frame or the hip frame moving along its main axis towards the hip frame in the securement by the interconnection means with the end of the rafter being urged against a side part of the hip frame.
2. A joint device, such as for interconnecting a jack rafter to a hip beam of conservatory roof frame, comprising a first joint part connectable to or abuttable against a glazing bar or jack rafter, a second joint part preferably shaped and dimensioned so as to have a locating portion locatable under the inwardly directed flange of a glazing-panel-support channel of a main beam or hip frame and/or locatable against the upstanding outer wall or flange of a glazing- panel- support channel of a main beam or hip frame or otherwise being a locating portion connectable to the hip frame, and said second part having an engageable portion, and securing means interconnecting said first and second joint parts and operable such as, in use, to draw the first part relatively towards the normally upwardly extending engageable portion of the second part to draw the jack rafter towards the main beam or hip frame and to clamp the normally upstanding outer wall or flange of the glazing-panelsupportjng channel of the main beam or hip frame between the lower locating portion of said second part and the angled end of the jack rafter.
3. A joint device as claimed in claim 2, in which the engageable portion extends upwardly from the locating portion when such is located in said channel.
4. A joint device as claimed in claim 1, 2 or 3, in which the first part is a plate or strip having a portion, preferably planar, securable against an upright/upwardly extending planar plate-like part of the jack rafter and, when secured to the rafter extends slightly beyond the angled or inclined end of the rafter and, preferably, has an end abutting portion which is preferably angled and which is preferably apertured to receive securing means, such as a threaded bolt or screw.
5. A joint device as claimed in claim 4, in which the securing means is engageable with the engageable means of the second part.
6. A joint device as claimed in claim 5, in which the engageable means comprises an upwardly extending engageable portion of the second part.
7. A joint device as claimed in claim 4 or 5, in which the securing means is a screw or bolt threadingly engageable in a threaded aperture in said engageable means of the second part.
8. A joint device as claimed in claim 7, in which the bolt or screw securing means nomally extends through an unthreaded portion in the first part and therefrom to engage in the second part or, alternatively a reverse arrangement is provided where there is sufficient room or where the upright stem part of the main frame or hip frame is apertured to permit screwing.
9. A joint device as claimed in any of claims 1 to 8, in which the first part has a portion abuttable against the upright or planar plate-like part of the stem of the jack rafter frame.
10. A joint device as claimed in any of claims 1 to 9, in which, when the angled end of the jack rafter is adjacent the channel of the hip frame, the first part is such as to extend with spacing above the upper edge of the glazing channel of the hip frame and provide an abutment surface there such that on engagement of the securing means (normally screw) with the engagementIabutrnen portion of the second part and with increased activation or operation of the securing means, the abutment faces of the first and second parts are pulled together and such that the inclined end of the jack rafter is forcibly urged against the channel of the hip frame by the compressive or other forces.
11. A joint device as claimed in any of claims I to 10, in which a loosefitting spacing/abutment block sits or fits on the end of the jack rafter and a screw runs through the upright or stem of the jack rafter and through a preferably unthreaded aperture in such block to engage in a threaded aperture in the second part to effect the clamping action.
12. A joint device as claimed in any of claims ito 11, in which the first part has a rib or projection on its side facing the main part of the jack rafter to facilitate location.
13. A joint device as claimed in claim 12, in which the rib or projection facilitates location such that preformed apertures in the first part align with prepared apertures in the upwardly extending planar plate-like part of the jack rafter for riveting or bolting or the like.
14. A joint device as claimed in any of claims I to 13, in which the second part will preferably be substantially L-shaped in section or part of a U-shaped section portion, with the main stem of the L being the upwardly extending part forming said engageable and abuttable portion and the lower horizontal and smaller portion or crosspiece being the engageable portion which is engageable in the glazing/drainage channel of the main beam or hip frame.
15. A joint device as claimed in claim 14, in which the corners and/or edges of said lower horizontal portion which are adjacent the channel wall to have the rafter end pressed against the outer surface, are rounded or curved to facilitate juxtaposition of the components to allow for irregularities in assembly of the framework and the part such as to space its stem from the flange edge such that said second part may rotate or pivot or skew against the drainage channel walls and need not necessarily have its main abutting part precisely parallel to the main upwardly extending stem part of the main beam or hip frame or generally the longitudinal axis thereof.
16. A joint device as claimed in any of claims 1 to 5 or 7 to 15, in which the securing means for securing the first and second parts together may be a screw or bolt, or spring clips, clamps increasingly engaging dovetail joints, or inclined ramp-like or wedging portions causing progressive movement together of the components with compressive force abutment.
17. A joint device as claimed in any of claims 1 to 15, in which the securing means is a threaded bolt or screw which, in use, extends transversely to the side walls defining the U-shaped section channel or to the main upright of stem of the hip frame.
18. A joint device as claimed in claim 17, in which the axis of rotation of the screw or bolt i.e. its longitudinal axis, is not in the plane of nor parallel to the plane of the stem of the rafter but rather is inclined or transverse to such.
19. A joint device as claimed in claims 18, in which the extension of the axis of rotation of the screw or bolt intersects the stem of the hip frame.
20. A conservatory roof framework including a joint device as claimed in any of claims ito 19.
21. A conservatory roof framework or an assembly of components therefor including a jack rafter connected to a hip frame by a joint device comprising a first joint part connectable to or engageable with a jack rafter and a second part connectable to or engageable with a hip frame and interconnection means between the first and second parts for urging the end of the jack rafter against a sidewall of a glazing/drainage channel of the hip frame with compressive force and for securing the first and second parts together.
22. A framework for a conservatory including a joint device interconnecting two frame members such as a jack rafter to a hip beam; said joint device comprising a first joint part detachably connectable to or abutting against a glazing bar or jack rafter, a second joint part preferably shaped and dimensioned so as to have a locating portion locatable under the inwardly directed flange of a glazing-panel-support channel of a main beam or hip frame and/or located against the upstanding outer wall or flange of a glazing-panel-support channel of a main beam or hip frame or otherwise being a locating portion connectable to the hip frame, and said second part having an engageable portion, preferably extending upwardly from the locating portion when such is locatable in said channel, and securing means interconnecting said first and second joint parts and operable such as, in use, to draw the first part relatively towards the normally upwardly extending engageable portion of the second part to draw the jack rafter towards the main beam or hip frame and to clamp the normally upstanding outer wall or flange of the glazing-panel-supporting channel of the main beam or hip frame between the lower locating portion of said second part and the angled end of the jack rafter.
23. A conservatory roof framework as claimed in 20, whenever the interconnection or joint device interconnects any two glazing bars of the conservatory framework.
24. A roof whenever including a framework and interconnection means or joint device as claimed in any of claims I to 19.
25. A joint device or a conservatory roof framework incorporating a joint device or an assembly of components to form a conservatory roof framework including a joint device substantially as herein described with reference to Figs. 3 to 6 of the accompanying drawings.
GB0427781A 2004-12-18 2004-12-18 Joint device for roof frame Withdrawn GB2422154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0427781A GB2422154A (en) 2004-12-18 2004-12-18 Joint device for roof frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0427781A GB2422154A (en) 2004-12-18 2004-12-18 Joint device for roof frame

Publications (2)

Publication Number Publication Date
GB0427781D0 GB0427781D0 (en) 2005-01-19
GB2422154A true GB2422154A (en) 2006-07-19

Family

ID=34090311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0427781A Withdrawn GB2422154A (en) 2004-12-18 2004-12-18 Joint device for roof frame

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Country Link
GB (1) GB2422154A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323107A (en) * 1997-03-14 1998-09-16 Ultraframe Uk Ltd Conservatory roofs
US6354757B1 (en) * 1997-02-28 2002-03-12 Thyssen Polymer Gmbh Section connector
WO2003012219A1 (en) * 2001-07-27 2003-02-13 Synseal Extrusions Limited An assembly of a main and an auxiliary beams
EP1396588A1 (en) * 2002-09-06 2004-03-10 Aspect Management Ltd Conservatory structures
GB2395496A (en) * 2002-11-19 2004-05-26 Aspect Man Ltd Pivotally movable connection for conservatory rafters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6354757B1 (en) * 1997-02-28 2002-03-12 Thyssen Polymer Gmbh Section connector
GB2323107A (en) * 1997-03-14 1998-09-16 Ultraframe Uk Ltd Conservatory roofs
WO2003012219A1 (en) * 2001-07-27 2003-02-13 Synseal Extrusions Limited An assembly of a main and an auxiliary beams
EP1396588A1 (en) * 2002-09-06 2004-03-10 Aspect Management Ltd Conservatory structures
GB2395496A (en) * 2002-11-19 2004-05-26 Aspect Man Ltd Pivotally movable connection for conservatory rafters

Also Published As

Publication number Publication date
GB0427781D0 (en) 2005-01-19

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