• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Abstract A stud (10) for formwork panels (52) comprising an elongate member securable adjacent opposed longitudinal sides thereof to first and second 5 panel members (52, 53). The stud (10) includes first and second apertures (20 and 21) interspersed along the length of the stud (10). The apertures (20 and 21) each include a first edge having a first end (26) adjacent a first longitudinal side (14) of the stud (10) and a second end (27) adjacent a second opposed longitudinal side (15) of the stud (10). The first end (26) of the first edge (22) 10 of each aperture (20) of the first set is offset from the second end (27) thereof towards a second longitudinal (13) end of the stud (10) and the first end (26) of the first edge (22) of each aperture (21) of the second set is offset from the second end (27) thereof towards a first longitudinal end (12) of the stud (10). 14- 18 _24 30- -- 26 27, Fig 1
    公开号:AU2013200824A1
    申请号:U2013200824
    申请日:2013-02-15
    公开日:2013-09-05
    发明作者:Daniel Phillip Sharpe；Paul Robert Sharpe
    申请人:Sharpe, Daniel Phillip MR；Sharpe, Paul Robert MR；
    IPC主号:E04G17-06
    专利说明:
    AUSTRALIA Patents Act 1990 COMPLETE SPECIFICATION Invention title: "Stud for Formwork Panel Units" Applicant: Daniel Phillip Sharpe & Paul Robert Sharpe Associated provisional applications: Number 2012900580 filed 17 February 2012 The following statement is a full description of the invention, including the best method of performing it known to me: 2 "Stud for Formwork Panel Units" Field of the Invention [001] The present invention relates to a stud used for creating formwork panel units. Background to the Invention [002] Concrete buildings are commonly constructed by erecting formwork panel units which are filled with concrete. A known system utilises pairs of fibre cement sheets spaced apart with a plurality of parallel studs. The panels are placed in position forming the walls and other components of the building and the space between the panels is then filled with concrete. The fibre panels remain in place and can be painted or otherwise finished once the joints between the panels have been flushed. [003] The studs in such formwork panels are often provided with apertures so that reinforcing rods can be passed through the aligned apertures before the concrete is poured. Each stud is generally provided with a series of such apertures along the length thereof and a single reinforcing bar is passed through each of the apertures. [004] In some circumstances, it is preferable to use more than one reinforcing bar through each aperture. These reinforcing bars must be separated from each other, which may be achieved, for example, by wire ties. Australian patent number 2008202281 shows an alternative form of a stud having apertures with curved lower edges. This arrangement is used to allow a pair of reinforcing bars to be used without the need to secure the bars apart with wire ties. [005] While the arrangement shown in 2008202281 would achieve the result of holding the reinforcing bars apart, it does have the drawback that if the studs were all not completely in alignment, the reinforcing bars may catch on 3 the edges of the apertures and be forced together. If, for example, one of the studs was positioned lower than the previous studs, the reinforcing bars would be positioned higher in the aperture and would be forced together by the angled sides of the aperture. [006] Also, it is usually desirable to have studs where the open area provided in the stud is maximised. This provides for effective flow of concrete through the spaces between the studs and also reduces the overall amount of metal required, and therefore the cost. [007] The present invention is therefore aimed at providing a stud for receiving reinforcing bars which can be separated transversely across the stud and which provides increased open area along the stud. Summary of the Invention [008] According to one aspect of the present invention there is provided a stud for formwork panels comprising: an elongate member securable adjacent opposed longitudinal sides thereof to first and second panel members; a first set of apertures provided along the length of the stud, each including a first edge having a first end adjacent a first longitudinal side of the stud and a second end adjacent a second opposed longitudinal side of the stud; and a second set of apertures provided along the length of the stud interspersed between the first set of apertures, each including a first edge having a first end adjacent a first longitudinal side of the stud and a second end adjacent a second opposed longitudinal side of the stud; wherein the second end of the first edge of each aperture of the first set is offset from the first end thereof towards a second longitudinal end of the stud and the second end of the first edge of each aperture of the second set is offset from the first end thereof towards a first longitudinal end of the stud. [009] Preferably the first edges of apertures of the first and second set are linear.
    4 [010] Prererably, each aperture includes a second edge wherein the second edges of apertures of the first set extend from the second end of the first edge towards the first longitudinal side of the stud and second edges of apertures of the second set extend from the first end of the first edge towards the second longitudinal side of the stud. [011] In a preferred embodiment, the second edges are linear. [012] In a preferred embodiment, the second edges of apertures of the first set are parallel to the first edge of the adjacent aperture of the second set and the second edges of apertures of the second set are parallel to the first edge of the adjacent aperture of the first set. [013] Each aperture preferably includes also a third edge being parallel to the longitudinal axis of the stud and joining the ends of the first and second edges. [014] In one embodiment, each aperture of the first set comprises a triangle having a base adjacent the first longitudinal side of the stud and an apex adjacent the second longitudinal side stud and each aperture of the second set comprises a triangle having a base adjacent the second longitudinal side and an apex adjacent the first longitudinal side. [015] Preferably, the apex of each aperture of the first set is located adjacent and between the bases of apertures of the second set and the apex of each aperture of the second set is located adjacent and between the bases of the adjacent apertures of the first set. Brief Description of the Drawings [016] The invention will now be described, by way of example, with reference to the following drawings in which: [017] Figure 1 is a front view of a stud for formwork panel units in accordance with the present invention; 5 [018] Figure 2 is a formwork panel unit incorporating the studs of Figure 1; and [019] Figure 3 is a front view of pair of the studs of Figure 1 in a misaligned configuration. Detailed Description of Preferred Embodiments [020] Referring to the Figures, there is shown a stud 10 for use in a formwork panel unit 50. Each of the studs 10 comprises an elongate member having a first longitudinal end 12 and a second longitudinal end 13. The formwork panel unit 50 comprises a plurality of the studs 10 arranged parallel to each other such that a first panel member 52 is secured to first longitudinal sides 14 of the studs 10 and a second panel member 54 is secured to second longitudinal sides 15 of the studs 10. The first and second panel members 52 and 54 are thereby supported parallel to each other such that, during construction, concrete may be poured to fill the space defined between the first and second panel members in a known fashion. [021] The stud 10 comprises generally an elongate planar body portion 16 having flanges 18 arranged along the first and second longitudinal sides 14 and 15. The flanges 18 are provided to aid securing the stud 10 to the first and second panel members 40. [022] The body portion 16 includes a plurality of apertures provided along the length thereof. In particular, there is provided a first set of apertures 20 and a second set of apertures 21. The apertures 20 of the first set are spaced equidistantly along the length of the stud 10. The apertures 21 of the second set are also spaced equidistantly along the length of the stud 10 and are interspersed between the apertures 20 of the first set. [023] Each aperture 20 of the first set includes a first edge 22 which extends from adjacent the first longitudinal side 14 towards the second longitudinal side 15 of the stud 10. Each aperture 21 of the second set includes also a first edge 22 which extends from adjacent the second longitudinal side 15 towards the first longitudinal side 14 of the stud 10. The first edges 22 of each the 6 apertures 20 and 21 are located on sides thereof remote from the first longitudinal end 12 of the stud 10. That is, if the stud 10 is oriented generally vertically with the first end 12 thereof uppermost, the first edges 22 are the edges on which reinforcing bars 24 would rest when inserted through the apertures 20 and 21. [024] The first edges 22 of the apertures 20 and 21 of the first and second sets are generally linear. The first edges 22 of the apertures 20 and 21 of the first and second sets each include a first end 26 located adjacent the first longitudinal side 14 of the stud 10 and a second end 27 located adjacent the second longitudinal side 15. The first ends 26 of the first edges 22 of each aperture 20 of the first set are offset from the second ends thereof towards the second longitudinal end 13 of the stud 10. The first ends 26 of the first edges 22 of each aperture 21 of the second set are offset from the second ends 27 thereof towards the first longitudinal end 12 of the stud 10. [025] With this arrangement, when a reinforcing bar 24 is inserted through an aperture 20 of the first set, the angle of the first edge 22 is such that the reinforcing bar 24 tends to move adjacent the first longitudinal side 14 of the stud 10. Reinforcing bars 24 inserted however through apertures 21 of the second set, tend to move adjacent the second longitudinal side 15 of the stud 10. Therefore, the first and second sets of apertures 20 and 21 allow the reinforcing bars 24 to be spaced apart laterally across the stud 10 as well as down the length thereof. [026] Each aperture 20 and 21 of the first and second sets also includes a second edge 28. The second edge 28 of apertures 20 of the first set extends from the second end 27 of the first edge 22 towards the first longitudinal side 14 of the stud 10 in a direction parallel to the first edge 22 of the adjacent aperture 21 of the second set. The second edge 28 of apertures 21 of the second set extends from the first end 26 of the first edge 22 towards the second longitudinal side 15 of the stud 10 in a direction parallel to the first edge 22 of the adjacent aperture 20 of the first set.
    7 [027] Each aperture 20 and 21 includes also a third edge 30 being parallel to the longitudinal axis of the stud 10 and joining the ends of the first and second edges 22 and 28. That is, in the embodiment shown, each aperture 20 of the first set comprises a triangle having a base adjacent the first longitudinal side 14 and an apex adjacent the second longitudinal side 15. Each aperture 21 of the second set comprises a triangle having a base adjacent the second longitudinal side 15 and an apex adjacent the first longitudinal side 14. The apex of each aperture 20 of the first set is located adjacent and between the bases of apertures 21 of the second set and the apex of each aperture 21 of the second set is located adjacent and between the bases of the adjacent apertures 20 of the first set. [028] As can be seen in the Figures, this arrangement allows the apertures 20 and 21 of the first and second sets to be closely positioned adjacent each other, thereby minimising the area of the stud 10. The opposite orientations of the edges 22 and 28 of the apertures 20 and 21 allows reinforcing bars 24 to be effectively separated regardless of whether the first or second end 12 or 13 of the stud 10 is positioned uppermost. [029] Also, the third edges 30 of each aperture 20 and 21 being oriented along the longitudinal axis of the stud 10 means that if any stud 10 is moved upwardly or downwardly relative to adjacent studs 10, the reinforcing bar 24 will not be impacted. Figure 3 shows a view of a pair of adjacent studs 10 where one stud 10 is offset vertically from the adjacent stud 10. As can be seen, the reinforcing bars 24 still remain in place adjacent the longitudinal sides 14 and 15 of the studs 10. [030] It will be readily apparent to persons skilled in the relevant arts that various modifications and improvements may be made to the foregoing embodiments, in addition to those already described, without departing from the basic inventive concepts of the present invention.
    权利要求:
    Claims (6)
    [1] 3. A stud in accordance with claim 2, wherein each aperture includes a second edge wherein the second edges of apertures of the first set extend 25 from the second end of the first edge towards the first longitudinal side of the stud and second edges of apertures of the second set extend from the first end of the first edge towards the second longitudinal side of the stud.
    [2] 4. A stud in accordance with claim 3, wherein the second edges are 30 linear.
    [3] 5. A stud in accordance with claim 4, wherein the second edges of apertures of the first set are parallel to the first edge of the adjacent aperture of the second set and the second edges of apertures of the second set are 35 parallel to the first edge of the adjacent aperture of the first set. 9
    [4] 6. A stud in accordance with any one of claims 3 to 6, wherein each aperture includes also a third edge being parallel to the longitudinal axis of the stud and joining the ends of the first and second edges. 5 7. A stud in accordance with claim 6, wherein each aperture of the first set comprises a triangle having a base adjacent the first longitudinal side of the stud and an apex adjacent the second longitudinal side stud and each aperture of the second set comprises a triangle having a base adjacent the second longitudinal side and an apex adjacent the first longitudinal side. 10
    [5] 8. A stud in accordance with claim 7, wherein the apex of each aperture of the first set is located adjacent and between the bases of apertures of the second set and the apex of each aperture of the second set is located adjacent and between the bases of the adjacent apertures of the first set. 15
    [6] 9. A stud substantially as hereinbefore described with reference to the accompanying drawings. 20 Daniel Phillip Sharpe & Paul Robert Sharpe By their Patent Attorneys ARMOUR IP 25
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    同族专利:
    公开号 | 公开日
    AU2013200824B2|2017-01-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4793113A|1986-09-18|1988-12-27|Bodnar Ernest R|Wall system and metal stud therefor|
    US5528876A|1994-05-09|1996-06-25|Lu; Sin-Yuan|Wall structure for buildings|
    US6295770B1|1999-12-29|2001-10-02|Chyi Sheu|Steel frame building structure|
    US20090249743A1|2006-01-17|2009-10-08|Bodnar Ernest R|Stud with lengthwise indented grooves, and with intervening planar surfaces, and method|
    AU2008202281B1|2008-05-22|2009-07-23|CSR Structural Systems Pty Ltd|Spacing member for a building panel|
    法律状态:
    2016-05-26| MK5| Application lapsed section 142(2)(e) - patent request and compl. specification not accepted|
    2016-09-22| NA| Applications received for extensions of time, section 223|Free format text: AN APPLICATION TO EXTEND THE TIME FROM 01 MAY 2016 TO 01 JAN 2017 IN WHICH TO GAIN ACCEPTANCE HAS BEEN FILED . |
    2016-12-15| NB| Applications allowed - extensions of time section 223(2)|Free format text: THE TIME IN WHICH TO GAIN ACCEPTANCE HAS BEEN EXTENDED TO 01 JAN 2017 |
    2017-05-04| FGA| Letters patent sealed or granted (standard patent)|
    2021-09-09| MK14| Patent ceased section 143(a) (annual fees not paid) or expired|
    优先权:
    申请号 | 申请日 | 专利标题
    AU2012900580A|AU2012900580A0||2012-02-17|Stud for Formwork Panel Units|
    AU2012900580||2012-02-17||
    AU2013200824A|AU2013200824B2|2012-02-17|2013-02-15|Stud for Formwork Panel Units|AU2013200824A| AU2013200824B2|2012-02-17|2013-02-15|Stud for Formwork Panel Units|
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