• 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:
    Strut work with reinforcement device. Strut of work comprising an outer tube, an inner tube and a piece for fixing the tubes to each other, the outer tube comprising an adjusting nut at its upper end, the inner tube being able to move inside the outer tube and said inner tube comprising a plurality of pairs of holes distributed along its length, said holes being arranged in diametrically opposite positions of the inner tube, said fixing piece passing through one of said pairs of holes of the inner tube to prevent relative movement between the outer and inner tubes, characterized by having a reinforcing device, said reinforcing device comprising a tubular sleeve capable of sliding on the outside of the inner tube of the construction prop and said tubular sleeve comprising fixing means to the construction prop. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2651193A1
    申请号:ES201630998
    申请日:2016-07-21
    公开日:2018-01-24
    发明作者:José Luis UBIÑANA FÉLIX
    申请人:Sistemas Tecnicos de Encofrados SA；
    IPC主号:
    专利说明:

    Construction strut with reinforcement device
    The present invention relates to a construction strut with a reinforcing device that provides a reinforcement in the buckling resistance of the strut.
    A construction strut is a telescopic element that is used as a temporary support for structures during construction work or repair of structures or in situations where there is a risk that a structure will collapse, among other applications. For example, construction struts can be used to support the walls of a mold for a concrete until the concrete has hardened and the walls of the mold can be removed.
    Usually, a construction strut comprises two telescopic tubes, that is, an inner tube that can be moved inside an outer tube and a system for fixing the inner and outer tubes to each other. Said fixing system usually consists of a plurality of pairs of holes distributed along the length of the inner tube arranged in diametrically opposite positions and of a fixing piece that passes through one of said pairs of holes to prevent relative movement between the outer and inner tubes. The extension of the strut is discretely regulated by means of the fixing piece. For fine adjustment of the extension of the strut, the outer tube comprises at its upper end a nut on which the fixing piece is supported.
    The versatility provided by the adjustable length allows the construction struts to cover a wide range of lengths, its maximum length being that in which the inner tube has been removed the maximum from the outer tube. However, the greater the length of the strut during use, the lower its resistance to buckling, with the risk that the strut collapses and ceases to perform its structural function when it operates with lengths close to its maximum length. On the other hand, high loads can also cause the buckling of the strut even if its length is not close to its maximum length. To guarantee the structural integrity of the work strut in these cases, the only existing solution is to increase the number of struts to distribute the load that supports each strut. As a result, the cost of the use of construction struts is increased by the need for a greater number of construction struts and, also, for a longer installation and removal time.

    The present invention aims to solve the aforementioned problems of work props. In particular, the present invention discloses a construction strut comprising two telescopic tubes, formed by an outer tube and an inner tube, and a fixing piece of the outer and inner tubes with each other, the outer tube comprising a nut of adjustment at its upper end, the inner tube being able to move inside the outer tube and said inner tube comprising a plurality of pairs of holes distributed along its length, the holes of said pairs of holes being arranged in diametrically positions opposite the inner tube, said fixing piece passing through one of said pairs of holes in the inner tube to prevent relative movement between the outer and inner tubes, characterized by having a reinforcing device, said reinforcing device comprising a susceptible tubular sleeve of sliding outside the inner tube of the work strut and understood said tubular sleeve said fixing means to the work strut.
    The object of the present invention is also a reinforcement device for said work strut characterized by comprising a tubular sleeve capable of sliding outside the inner tube of the work strut and said tubular sleeve comprising means for fixing to the work strut. Likewise, another object of the present invention is the use of said reinforcement device in a construction strut to reinforce the buckling resistance of the strut.
    The work strut object of the present invention has a reinforced buckling resistance thanks to the reinforcement device, increasing the load necessary for the strut to collapse by buckling. In this way, the work strut object of the present invention guarantees the stability and safety of a structure against high axial loads with a smaller number of struts compared to work struts that do not comprise said reinforcement device. Consequently, by requiring less amount of construction struts, the installation and removal time of the struts is less and its cost more economical.
    On the other hand, the reinforcement device object of the present invention requires little installation time since the tubular sleeve must simply be slid outside the inner tube of the strut and fixed to the work strut. In addition, the length of the reinforcement device even allows the strut to be transported without the need to remove said reinforcement device, whereby the strut and its device can be transported and stored without separating, avoiding the need to place the reinforcement device in the strut before each use. However, if necessary, the reinforcement device can also be removed easily and quickly, releasing it from the strut and sliding it outside the inner tube outwards.
    In an embodiment of the work strut object of the present invention, the fixing means of the tubular sleeve to the strut comprise a pair of holes arranged in diametrically opposite positions of the tubular sleeve so that the fixing piece passes through the pair of holes of the tubular sleeve to fix it to the work strut. In this way, the fixing part of the inner and outer tubes also passes through the holes of the tubular sleeve, the tubular sleeve being fixed to the work post.
    Optionally, the tubular sleeve is in contact with the adjusting nut of the upper end of the outer tube of the strut. In this position the possible angular movement between the inner and outer tubes of the work strut due to loads is minimized.
    Preferably, the tubular sleeve comprises a perimeter fin at one of its ends. Thus, if there is contact between the tubular sleeve and the adjustment nut of the outer tube of the strut, the contact surface is larger, so that the stresses and stresses generated are lower. In addition, the flap facilitates manual operation of the device and helps align both strut tubes.
    For the best understanding and by way of explanation but not limitation, the present invention is described below on the basis of an exemplary embodiment represented in some drawings.
    Figure 1 shows a perspective view of an embodiment of a reinforcement device for work struts object of the present invention.
    Figure 2 shows a front elevation view of the device of Figure 1.
    Figure 3 shows a perspective view of a construction strut incorporating a reinforcement device according to the present invention.
    Figure 4 shows an enlarged perspective view of a detail of Figure 3 in which the area of the construction strut in which the reinforcement device is located has been enlarged.
    5 Figure 5 shows a front elevation view of 5 struts for work in differentlength configurations, in which only construction struts b and c comprise areinforcing device object of the present invention.
    As can be seen in figures 1 and 2, the reinforcement device -1-for construction strut
    The object of the present invention consists of a tubular sleeve -10- comprising at one of its ends a perimeter fin -11-. In addition, the tubular sleeve -10- comprises two holes -12-, -12'-arranged in diametrically opposite positions.
    Figures 3 and 4 show a strut -2-object of the present invention that
    15 comprises the reinforcement device -1-of Figures 1 and 2. The strut -2-comprises an inner tube -20- and an outer tube -21-fixed to each other through a fixing piece -22-, presenting the outer tube -21-, in its upper part, an adjustment nut -21'-for the most precise regulation of the extension of the strut -2-which has handles -21 '' - for its manual handling. In addition, the strut -2-presents at its ends flat pieces -23-,
    20 -23'-which facilitate the contact of the strut -2-with the surfaces of the structures it supports.
    On the other hand, the inner tube -20-of the strut -2- comprises a plurality of pairs of holes arranged in diametrically opposite positions, observed in figures 3
    25 and 4 only one hole -24- of each pair of holes.
    The inner tube -20-of the strut -2-is inserted inside the tubular sleeve -10-, said tubular sleeve -10-resting on the adjusting nut -21'-of the upper end of the outer tube -21-a through the perimeter fin -11-. The holes -12-, -12'-del
    30 tubular sleeve -10-, being arranged diametrically opposite, in the same way as the pairs of holes -24-of the inner tube -20-of the strut -2-, allow the fixing piece -22-to cross both the holes -24-of the inner tube such as holes -12 -, - 12'-of the tubular sleeve -10-, thus achieving the fixation of the tubular sleeve -10-to the strut -2- (figures 3 and 4).
    35 The regulation of the relative positions between the inner -20-and outer -21-tubes of the strut -2-allows to achieve a wide range of lengths, as shown by the different configurations of Figure 5. In configurations in which the length of the strut -2-is close to its maximum length (see figures 5a, 5b) the buckling resistance of the strut -2-se
    5 is reduced and the risk of collapse appears. The use of the reinforcement device -1 increases the buckling resistance of the strut -2-, whereby the strut -2-of Figure 5b presents a risk of collapse due to buckling less than the strut -2-of Figure 5a.
    The configuration of Figure 5c corresponds to the position of shorter strut length -2
    10 when it has the reinforcement device -1-object of the present invention, the figure 5d showing the same strut length -2-without reinforcement device -1-In order to use the strut -2-in smaller lengths (see figures 5e and 5f) the reinforcement device -1- must be removed, in which cases it is not possible to use the reinforcement device -1- to increase the buckling resistance of the strut -2- because there is no space. In these
    15 cases, however, due to the short length of the strut -2-, buckling resistance is not compromised, and the use of the device -1-object of the present invention is usually not necessary.
    While the invention has been presented and described with reference to embodiments thereof,
    20 it will be understood that these are not limiting of the invention, so that multiple constructive or other details could be variable that may be evident to the technicians of the sector after interpreting the subject matter disclosed in the present description, claims and drawings . Thus, all variants and equivalents will be included within the scope of the present invention if they can be considered
    25 within the broadest scope of the following claims.
    权利要求:
    Claims (7)
    [1]
    1. Construction strut comprising two telescopic tubes, formed by an outer tube andan inner tube, and a fixing piece of the outer and inner tubes with each other,5 the outer tube comprising an adjustment nut at its upper end, the tube beinginterior capable of moving inside the outer tube and comprising saidinner tube a plurality of pairs of holes distributed along its length,the holes of said pairs of holes arranged in positionsdiametrically opposed to the inner tube, said fixing piece passing through one of the
    10 said pairs of holes of the inner tube to prevent relative movement between the outer and inner tubes, characterized by having a reinforcing device, said reinforcing device comprising a tubular sleeve capable of sliding outside the inner tube of the work strut and said tubular sleeve comprising fixing means to the work strut.
    [2]
    2. Strut, according to claim 1, characterized in that said fixing means of the tubular sleeve to the strut comprise a pair of holes arranged in diametrically opposite positions of the tubular sleeve so that the fixing piece passes through the pair of holes of the tubular sleeve for fix it to the work strut.
    [3]
    3. Strut according to claims 1 or 2, characterized in that the tubular sleeve is in contact with the adjusting nut of the upper end of the outer tube of the strut.
    [4]
    4. Strut, according to any of the preceding claims, characterized in that the tubular sleeve comprises a perimeter fin at one of its ends.
    [5]
    5. Reinforcement device for the work strut of claims 1 to 4 characterized by comprising a tubular sleeve comprising means for fixing to the work strut.
    6. A reinforcing device according to claim 5, characterized in that said fixing means to the strut comprise a pair of holes arranged in diametrically opposite positions of the tubular sleeve.
    [7]
    Device according to any one of claims 5 or 6, characterized in that the tubular sleeve comprises a perimetral fin at one of its ends.
    [8]
    8. Use of the reinforcing device of claims 5 to 7 in a work strut to reinforce the buckling resistance of said work strut.
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    同族专利:
    公开号 | 公开日
    WO2018015603A1|2018-01-25|
    EP3489437A1|2019-05-29|
    ES2651193B1|2018-11-30|
    CO2018013823A2|2019-01-18|
    MX2018016256A|2019-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1356174A|1964-06-26|Pin for locking in relation to each other two tubes sliding telescopically one inside the other|
    FR904545A|1944-05-24|1945-11-08|extendable prop, especially for construction work|
    FR1144762A|1956-01-24|1957-10-17|tubular prop constituting a lifting cylinder|
    ES361339A1|1968-12-12|1970-11-16|Coal Industry Patens Limited|A deformable support device for a mine ceiling. |
    FR2323845A1|1975-09-11|1977-04-08|Self Lock Echafaudages|Concrete structure scaffolding form removal - with rotatable cam on sliding units support pin held by lever and lock |
    ES1028234U|1994-06-07|1994-12-16|Perez Pedro Garcia|Hold-in telescopic props for plays. |
    FR2628466A1|1988-03-09|1989-09-15|Rennepont Sa|Adjustable length stay for scaffolding etc. - comprises inner tube moving telescopically on outer shaft, with threaded sleeve for fine adjustment|
    ES2140291B1|1997-04-04|2001-02-16|Ingenieria Encofrados Servi Sl|PERFECTION ON CONSTRUCTION POINTS.|
    JP4336273B2|2004-08-27|2009-09-30|賢司 小林|Cap for pin receiving nut for temporary construction support|
    法律状态:
    2018-11-30| FG2A| Definitive protection|Ref document number: 2651193 Country of ref document: ES Kind code of ref document: B1 Effective date: 20181130 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630998A|ES2651193B1|2016-07-21|2016-07-21|WORK POINT WITH REINFORCEMENT DEVICE|ES201630998A| ES2651193B1|2016-07-21|2016-07-21|WORK POINT WITH REINFORCEMENT DEVICE|
    PCT/ES2017/070523| WO2018015603A1|2016-07-21|2017-07-20|Construction post with reinforcement device|
    EP17768163.2A| EP3489437A1|2016-07-21|2017-07-20|Construction post with reinforcement device|
    MX2018016256A| MX2018016256A|2016-07-21|2017-07-20|Construction post with reinforcement device.|
    CONC2018/0013823A| CO2018013823A2|2016-07-21|2018-12-19|Construction strut with reinforcement device|
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