• 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:

    公开号:SE0950070A1
    申请号:SE0950070
    申请日:2009-02-10
    公开日:2010-08-11
    发明作者:Patrik Johansson
    申请人:Patrik Johansson；
    IPC主号:
    专利说明:

    The roof lifting device according to the invention is characterized by features according to the characterizing part of claim 1.
    The method according to the invention is characterized by the steps according to the characterizing part of claim 2.
    The invention will be described in more detail below with reference to the accompanying drawings.
    Figure 1 shows an embodiment of a lifting device according to the invention in a top view.
    Figure 2 shows the lifting device according to figure 1 in a side view, where the lifting device is in a lower, lowered end position.
    Figure 3 shows the lifting device according to figure 1 in a side view, where the lifting device is in a raised position.
    The lifting device comprises a lower frame 1, an upper frame 2, an actuator 3 and two scissor structures 4, 5.
    The purpose of the actuator 3 is to enable the upper frame 2 to be raised and lowered relative to the lower frame 1. The purpose of the scissor structures 4, 5 is to stabilize the upper frame 2 relative to the lower frame 1. In Figure 1, only the upper frame 2 is visible and in figures 2 and 3 only one scissor construction 4 is visible.
    The upper frame 2 comprises two parallel, elongate edge beams 6, 7, two cross beams 8, 9, which connect the edge beams 6, 7 and a central beam 10, which runs between the cross beams 8, 9 parallel to the edge beams 6, 7 and centrally in the frame 2.
    The lower frame 1 comprises corresponding edge beams, cross beams and central beam, of which only one edge beam 11 is visible in figures 2 and 3. The lower frame 1 further comprises supports 12 arranged on the underside of the edge beams, which supports 12 form the paws or feet of the lifting device.
    Each frame 1, 2 thus has an extension in a plane defined by the beams included in the frame.
    The actuator 3, which is preferably in the form of a telescopic hydraulic cylinder, extends between the frames 1, 2. in the upper frame 2 in an attachment point 13, which is The actuator 3 is hingedly attached at its upper end centrally located inside the frame 2. With centrally located inside the frame 2 it is meant here that the attachment point 13 is located between the edge beams 6, 7 and at a distance from the ends of the frame 2, which are defined by the ends of the edge beams 6, 7. Preferably, in addition, the attachment point 13 is located in or substantially in the plane of the frame 2. In the exemplary embodiment shown, the upper end of the actuator 3 is articulated in the central beam 10.
    The actuator 3 is articulated at its lower end in the lower frame 1 in a corresponding manner, i.e. in an attachment point 13 which is centrally located inside the frame 1. Preferably, the lower end of the actuator 3 is articulated in the central beam of the lower frame 1 (not visible) in an attachment point (not visible) corresponding to the attachment point 13 of the actuator 3 in the central frame 2 of the upper frame 10. , which allows a vertical working direction for the actuator 3 provided that the lifting device stands on a flat surface.
    Said scissor structures 4, 5 each comprise a set of scissor beams 14-18; 19, 20, which at their central portions and ends are rotatably arranged next to each other in pivot axes 21 in a known manner. The two upper scissor beams 15, 16 in the first scissor structure 4 are connected to one edge beam 6 of the upper frame 2, and the two upper scissor beams 19, 20 in the second scissor structure 5 are connected to the second edge beam. 7.
    In the first scissor structure 4, the upper end of one of the upper scissor beams 15 is rotatably connected to the edge beam 6 in a pivot axis 22. The upper end of the second scissor beam 16 is connected to the edge beam 6 by a roller 23, which is mounted at the upper end of the scissor beam 16 and runs in a groove 24 in the edge beam 6.
    In the second scissor construction 5, the upper scissor beams 19, 20 are arranged at the edge beam 7 in a corresponding manner, i.e. the upper end of one of the upper scissor beams 19 is rotatably connected to the edge beam 7 in a pivot axis 25 and the upper end of the second scissor beam 20 is connected to the edge beam 7 by a roller 26, which is mounted arranged at the upper end of the scissor beam 20 and runs in a groove 27 in the edge beam 7.
    The lower scissor beams in each scissor construction are arranged at the respective edge beam of the lower frame 1 in a corresponding manner.
    Preferably, the edge beams in each frame are formed as U-beams facing each other, whereby said grooves are obtained by the shape of the U-beam.
    During the lifting movement of the lifting device, and as long as the lifting device is in a raised position, the scissor constructions 4 and 5 ensure that the upper frame 2 is always maintained parallel to the lower frame 1. Since the actuator 3 is attached to the frames 1, 2 at central attachment points, the actuator 3 should always be located between the scissor constructions 4, 5, and all possible oblique load on the upper frame 2 will consequently always be taken up by the scissor constructions 4, 10 and the actuator 3. The actuator 3 of a lifting device according to the invention will thus never to be subjected to any harmful bending moment. Thus, in the lifting device according to the invention, the stabilizing function provided by the scissor constructions 4 and 5 is disengaged from the lifting function provided by the actuator 3.
    When using lifting devices according to the invention, one or more lifting devices are placed under the roof trusses completed on the base plate. Thereafter, the lifting devices are raised simultaneously by raising the upper frame 2 of each lifting device relative to the lower frame 1 through the supply of the actuator 3, so that the roof is lifted straight up. Then the wall elements are erected, after which the lifting devices are lowered by lowering the upper frame 2 of each lifting device relative to the lower frame 1 by the actuator 3, so that the roof is lowered straight down. The ceiling is then attached to wall elements, after which the lifting devices can be lowered to their respective lower end positions and removed.
    The invention has been described above on the basis of a specific embodiment. It will be appreciated, however, that other embodiments and variants fall within the scope of the invention.
    Since the scissor constructions 4, 5 move synchronously, e.g. the lifting device comprises stabilizing crossbars or crossbeams connecting connecting scissor beams of one scissor structure to opposite scissor beams of the other scissor structure. Such crossbars or crossbeams must of course be placed so that they do not encroach on the space of the actuator.
    权利要求:
    Claims (2)
    [1]
    1. Roof lifting device comprising a lower frame (1) and an upper frame (2), which is elevable relative to the lower frame (1) by means of an actuator (3), characterized in that the roof lifting device further comprises two scissor constructions (4, 5), which connect the frames (1, 2) to each other, and in that the actuator (3) is fixed in the frames (1, 2) in centrally located attachment points (13), so that the actuator (3) is arranged between the scissor constructions (4, 5).
    [2]
    A method of erecting a building, characterized by the steps: - placing one or more roof lifting devices according to claim 1 under a roof structure located on the base slab of the building, - raising said one or more roof lifting devices so that the roof structure is raised, that wall elements are erected under the raised roof structure, and - that one or more roof lifting devices are caused to be lowered, so that the roof structure is lowered and brought to rest on the wall elements.
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    同族专利:
    公开号 | 公开日
    SE533977C2|2011-03-15|
    EP2216453A2|2010-08-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1960609A1|2005-12-16|2008-08-27|Gregory John Black|Improved construction system, method and apparatus|JP6368299B2|2015-12-24|2018-08-01|株式会社シィップ|Lifting platform device|
    CN107188099B|2017-05-24|2019-11-26|郭吉平|A kind of long stroke scissors connecting rod self guide mechanism|
    CN107647646A|2017-09-19|2018-02-02|邓海运|A kind of adjustable rack for placing office supplies|
    CN112576021A|2020-12-11|2021-03-30|广东凤明建设工程有限公司|Integrated aluminum alloy suspended ceiling mounting equipment|
    法律状态:
    2013-10-01| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE0950070A|SE533977C2|2009-02-10|2009-02-10|Taklyftanordning|SE0950070A| SE533977C2|2009-02-10|2009-02-10|Taklyftanordning|
    EP20100153055| EP2216453A2|2009-02-10|2010-02-09|Roof lifting device|
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