• 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:
    The invention relates to an automatic lifting device with a frame part (2) comprising a wheel plane (3) at the underside (4) of which a number of supporting wheels (5) and a supporting plane (6) passed parallel to the wheel plane (3), as well as between the wheel plane (3) and the carrier plane (6) acting parallel guide (8) and springs, the carrier plane (6) being resiliently movable against the wheel plane (3) in dependence on a load placed on the carrier plane (6). The parallel guide (8) comprises two or more similar spring-mounted articulated joints (10) disposed between the wheel plane (3) and the carrier plane (6).
    公开号:DK201800299A1
    申请号:DKP201800299
    申请日:2018-06-27
    公开日:2020-01-20
    发明作者:Kristensen Kenneth；Mortensen Dan
    申请人:Flex1One A/S；
    IPC主号:
    专利说明:

    Automatic lifting device and its use
    There is known an automatic lifting device with a frame part comprising a wheel plane at the underside of which is provided a plurality of carriers and a carrier plane parallel to the wheel plane, as well as parallel guiding and springs acting between the wheel plane and the carrier plane, whereby the carrier plane is resiliently movable towards the wheel plane in dependence on a wheel plane. load placed on the carrier. This known lifting device has the springs for establishing the lift placed in a vertical frame part next to the support plane, so that when the load is applied a momentum to the vertical frame member housing the springs, an additional reinforcement of the vertical frame member is required, and, moreover, there is a risk that the torque, which must be transmitted even during movement up and down the support plane relative to a wheel plane, causes the support plane to wedge in a given position. This is because the construction necessitates a linear alignment of the support plane along the vertical frame part.
    Thus, an improved or alternative lifting device is needed.
    It is proposed that the parallel guide be arranged to comprise two or more identical spring-mounted articulated joints located between the wheel plane and the support plane. Hereby a compact lifting device is obtained completely without vertical frame parts, the linkage connections being easily arranged so that they ensure the parallel plane up and down of the parallel plane relative to the wheel plane without the risk of wedge wedge. Since all motions are realized as turning or rotational motions and there are no linear guides, a reliable device is obtained which is also extremely compact, since the spring-mounted articulated joints can be easily arranged so that when lowering the support plane down to the wheel plane, collapsed between the two planes so that the lifting device thereafter does not fill substantially more in height than the thickness of the two planes.
    DK 2018 00299 A1
    It is preferred that each hinge joint comprises two equally long support members and that each such two support members are interconnected along knee hinge lines at one end, and at opposite ends are hinged to wheel plane and support plane along parallel to the knee hinge lines and respective wheel plane hinge line and carrier plane respectively. at least two of the joint joints have non-parallel knee hinges. In fulfilling the condition of non-parallel knee hinge lines, a safe and stable guide of the support plane towards or away from the wheel plane is ensured, while maintaining the parallel orientation of the two planes by preventing the non-parallel hinge lines from moving about one of the non-parallel rotation axes during movement. , which the hinge lines make up.
    It is preferred that each of said hinge lines includes a hinge pin, which hinge pin defines the axis of rotation of the mutually hinged members, with the hinge pin for respective wheel plane hinge line and carrier hinge line respectively, each of which coil springs are arranged around each hinge spring with windings. a lifting torque between the support member and the wheel plane and support plane, respectively, which is greatest when the support plane and the wheel plane are closest to each other, and at least when the distance between the wheel plane and the support plane is greatest.
    The action of the coil spring by rotating its end points relative to each other, and consequently enlarging or reducing the diameter of each winding.
    In this way, it is ensured that the support plane is gradually lowered towards the wheel plane as the load on the support plane increases, as the spiral springs at the carrier's tilting or rotational movement towards the support plane and wheel plane are gradually tensioned because their ends are fastening or abutting the support element and associated supporting element. wheel level.
    DK 2018 00299 A1
    The coil springs of the coil springs are conveniently located around the hinge pin, and the diameter changes caused by the clamping can be easily contained in a predetermined excess of the inner diameter of the windings relative to the outside diameter of the hinge pin.
    It is preferred that the lifting device comprises four similar articulated joints, arranged symmetrically two and two opposite each other relative to a common center axis of the support plane and wheel plane respectively, which center axis runs perpendicular to the two parallel planes. In normal use on a level surface, the center axis of the lifting device defines a vertical axis and the support plane is displaced by load along this axis. The four like-jointed joints form a very stable arrangement, the up and down movement of the carrier will be smooth and unobstructed.
    Conveniently, the wheel plane hinge lines and carrier hinge lines are spaced apart from the center axis so that the knee hinge lines move synchronously inward toward the center axis as the two planes under increasing load on the support plane approach each other. In this way, it is ensured that the joint connections do not get outside the outline of the two planes during their movements counter- and away from each other.
    The hinge pin for the respective wheel plane hinge line and the carrier hinge line is a loose or removable hinge pin and is mounted in eyes belonging to the wheel plane and support plane, respectively, which eyes are located at each end of a mounted hinge pin.
    The hinge pins are thus attached at each end to the support plane and wheel plane respectively, and have the through-shaft opening of a support element located at each eye, the coil spring being mounted in the middle between the through-shaft openings.
    Conveniently, on the underside of the wheel plane, four carriers are attached, each carrier wheel being mounted under each wheel plane hinge line.
    DK 2018 00299 A1
    This construction ensures maximum stability, since the weight transmitted via each hinge pin can be taken up by a carrier wheel just below the hinge pin.
    It is advantageous that both the wheel plane and the carrier plane have a circular outline, since in the plans a recess is made between the four wheel plane hinge lines and between the four carrier hinge lines, which recesses extend from the circular outline towards the center axis. The four recesses help ensure low weight of the unit.
    Because the wheel plane and support plane are similar and equal in size, these two elements can be made in the same mold, which helps to make the unit cheaper.
    The lifting device is suitably used to be loaded with up to four wheels or tires stacked flat on top of the support plane and one another where the resilience of the coil springs is adjusted so that the top tire or wheels are always presented ergonomically correctly and in the same height position for a user. This provides increased mobility and better ergonomics when changing tires or wheels on vehicles. But the unit can also be used for other purposes, for example on construction sites or in other parts of the industry.
    The invention will now be explained in more detail with reference to the drawings, in which:
    FIG. 1 shows a 3d representation of the lifting device,
    FIG. 2 is a side view of the lifting device of FIG. 1
    FIG. 3 shows the lifting device shown in FIG. 2 in the collapsed state
    FIG. 4 is a sectional view through a lifting device as shown in FIG. 2, however, in a sectional plane through two opposite bearing wheels.
    The automatic lifting device 1 shown in a 3d rendering of FIG. 1 can be loaded with up to four wheels or tires stacked flat on the support plane 6 and
    GB 2018 00299 A1 each other (the wheels are not shown) as the resilience of the coil springs 17 is adjusted so that the top tire or wheels are always presented in an ergonomically correct position for a user. Thus, when four wheels are stacked on the support plane 6, this will be pressed down against the wheel plane 3 so that the two planes 6, 3 occupy the one shown in FIG. 3 in relation to each other. This will keep the upper wheel at the correct working height for the mechanic to use the wheel. As the wheels are taken off the top one by one, the top wheel will always be in approximately the same position as the fourth wheel when four wheels are stacked on top of one another. Similarly, the lifting device 1 can be loaded with one, two, three or four wheels stacked on top of one another, with the support plane and wheel plane moving gradually towards each other, while continuously several wheels are stacked on the wheel plane until the plans on the arrival of the fourth wheel are squeezed together as shown in FIG. Third
    The wheel plane 3 has at its underside 4 a number of bearing wheels 5. If the lifting device 1 is used for tires, the springs 17 must be designed with a smaller spring constant than if the whole wheels are to be stacked on the support plane. It is also noted that items other than wheels and tires can be stacked on the lifting device, eg bricks or other building materials, which are used gradually, and may be ergonomically correctly ready for use, both when a material stack is completely full and when it is full. close to being exhausted.
    The parallel guide 8 comprises two or more identical spring-mounted articulated joints 10 arranged between wheel plane 3 and support plane 6.
    In the illustrated embodiment, the parallel guide 8 comprises four identical linkage links 10, each linkage 10 comprising two equally long support members 11 and each such two support members 11 being interconnected along the knee hinge lines 12 at their one end, and at opposite ends hinged to, respectively. wheel plane 3 and carrier plane 6
    DK 2018 00299 A1 along parallel to the knee hinge lines 12 extending respective wheel plane hinge line 13 and support hinge line 14. The hinge lines are shown in FIG. 1 with dotted lines. For the sake of clarity, this is not repeated in other figures. In order to ensure that the functionality of the parallel guide, at least two of the joint connections 10 must have non-parallel knee hinge lines 12. As can be seen in FIG. 1, the two knee hinge lines 12 visible in the figure are arranged along rotation axes 16, forming a right angle to one another shown by the dashed lines through the two rotation axes 16.
    Each of said hinge lines 12, 13, 14 includes a hinge pin 15 defining the axis of rotation 16 of the mutually hinged elements. The rotation shaft 16 and the hinge lines are coincident, with the hinge pin 15 being the physical element about which each carrier rotates and the rotation axis and hinge line being the center of the rotation element makes about the hinge pin 15. On the hinge pin 15 for respective wheel plane hinge line 13 with windings extending around the hinge pin 15. Here, each coil spring 17 can transmit a lifting torque between the support element 11 and wheel plane 3 and support plane respectively.
    6. Since the coil spring is mounted so that it is gradually tensioned when the support elements 11 are closed together, torque becomes greatest when the support plane 6 and the wheel plane 3 are closest to each other, and at least when the distance between the wheel plane 3 and the support plane 6 is greatest. The tension can be increased either by increasing the coil's individual windings or decreasing in diameter.
    The lifting device 1 comprises four similar articulated joints 10, arranged symmetrically two and two in relation to a common center axis 18 for support plane 3 and wheel plane 6. Center axis 18 extends perpendicular to the two parallel planes 3,6. Note that the lifting device could work with 2, 3 4 or more joint connections between wheel plane 3 and
    In order to achieve an even load on each hinge pin 15, it is advantageous for the joint connections 10 to be arranged with equidistant angular distances between them relative to the center axis 18 (indicated in Fig. 4). In the illustrated embodiment of the invention, the angle between two adjacent articulated joints 10 is 90 °.
    It can also be seen from FIG. 1, that the wheel hinge lines 14 and carrier hinge lines 13 are spaced apart from the center axis 18 so that the knee hinge lines 12 move inwardly toward the center axis 18 as the two planes, the carrier plane 3 and the wheel plane 6 under increasing load on the carrier plane 6, approach each other.
    It is preferred that the hinge pin 15 for respective wheel hinge line 13 and support hinge line 14 is a loose or removable hinge pin 15 and is mounted in eyes 19, 20 (only indicated in Figure 2) of wheel plane 3 and support 6, respectively, which eyes 19,20. is located at each end of a mounted hinge pin 15. This construction provides an even load on each hinge pin 15 and associated eyes. The eyes 19, 20 are formed in metal brackets 24, which are again mounted to the upper side of the wheel plane 3 and the underside of the support plane 6. The metal brackets 24 are otherwise similarly and individually fixed to their respective plans with one or more simple standard screw 7. As it is also seen in FIG. 4, the screws 7 for the wheel plane are at the same time holding screw for the fixture 25 (shown in Fig. 4), which constitutes wheel suspension and the mounting of the suspension in the wheel plane 3. It should be noted that the metal bracket 24 is very simple and comprises a flat plate part with a folded groove. 23 (indicated in Fig. 3) at each end in which the eye 19, 20 (indicated in Fig. 2) of the hinge pin 15 is projected.
    As can be seen from the figures, on the underside 4 of the wheel plane 3, four supporting wheels 5 are attached, and here each carrier wheel 5 is mounted under each wheel plate hinge line 13. This provides maximum stability for
    DK 2018 00299 A1 lifting device 1, the force of the support plane 6 due to the weight of, for example, cars or truck wheels, is transmitted downwards via the hinge pins 15, whereby a hinge pin 15 will be mounted in a bracket with eyes 19, 20 directly over each carrier wheel 5. The carrier wheels 5 are so-called castor wheels, which are characterized by being rotatable about a vertical axis in their suspension or fixture 25. The lifting device 1 is thereby highly mobile and can be operated in any direction on a flat surface. Two or more of the carrier wheels 5 may be provided with a releasable braking device so that the lifting device 1 can be stably parked in a desired location.
    Referring to FIG. 1 that both wheel plane 3 and support plane 6 have a circular outline 22 (indicated in Figure 1). This is in accordance with the primary application of the device 1 according to the described embodiment, which is to store and transport up to four tires or wheels on top of one another. Consequently, the circular outline 22 has a diameter which is not substantially smaller than the diameter of conventional tires or wheels for, for example, passenger cars. However, the lifting device can, of course, be scaled up as well as down and, for example, produced in a larger or smaller version depending on the type of hole or other elements it is arranged to be loaded with. In each of the planes 3, 6, a through recess 21 is made between the four wheel plane hinge lines 13 as well as between the four carrier hinge lines 14, the recesses 21 extending from the circular outline towards the center axis 18. The recesses 21 have some advantages, e.g. a user of the device places his foot in the recess for the wheel plane, thereby allowing for better ergonomic posture when the device is to be loaded or unloaded. In addition, several devices may be stacked in the collapsed state (shown in Fig. 3) as the carriers may fall into recesses 21 in an underlying carrier plane 3 so that the stack becomes stable and unnecessarily high. In addition, the recess 21 in the support plane will allow a user to grip the underside of a wheel here, either during loading or unloading of the lifting device 1.
    DK 2018 00299 A1
    It is noted that wheel plane 3 and support plane 6 are similar and equal in size, so that these two elements can be molded in the same mold. In the middle of one and the other of the two planes 3, 6, a bowl 9 is formed, and as seen in FIG. 1 is this round and of FIG. 2 it is seen that the bowl 9 has tapered sides so that a bottom portion thereof extending downwards past the lower extent of the carrier 6 or the wheel plane 3 can otherwise be accommodated in the upward opening of an adjacent bowl 6 by collapsing the carrier pawl 6 and wheel plane 3, or by stacking the lifting devices 1 thus collapsed on top of one another.
    Similarly, all of the supporting elements 11 are uniformly formed and of equal size, and thus can be molded in the same mold, either in plastic or light metal according to the strength requirements. Each support element 11 also includes a square plate, with parallel extending shaft openings at two opposite edge parts. At one edge, the axis openings are at each adjacent side so that a center region can be held free, this area being occupied by the coil spring 17 which is also mounted on the hinge pin 15.
    The shaft openings in the support element 11, the hinge pin 15 and the eyes 19, 20 in the metal bracket 24 together constitute the hinge which permits a support element 11 to tilt about the carrier hinge line 14 and the wheel plane hinge line 13, respectively, while at the same time the support elements 11 form pair joints 10. can collapse around the knee hinge line 12.
    DK 2018 00299 A1
    Numeral
    1. Lifting device
    2. Set part
    3. Wheel plan
    4. Bottom of wheel plane
    5. Carrier
    6. Carrier plan
    7. screws
    8. Parallel guide
    9. Cheers
    10. Joint connections
    11. Carrier
    12. Knee hinge line
    13. Wheel plane hinge line
    14. Carrier hinge line
    15. Hinge pin
    16. axis of rotation
    17. Coil spring
    18. Center axis
    19. Wheel Plane Eyes
    20. Carrier Eyelets
    22. Circular outline
    23. Wrapped wrap
    24. Metal fittings
    25. Fasting
    权利要求:
    Claims (10)
    [1]
    patent claims
    An automatic lifting device with a frame part (2) comprising a wheel plane (3) at the underside (4) of which is provided a plurality of supporting wheels (5) and a supporting plane (6) extending parallel to the wheel plane (3), as well as between the wheel plane (3) and the support plane (6) acting parallel guide (8) and springs, wherein the support plane (6) is resiliently movable to the wheel plane (3) in dependence on a load placed on the support plane (6), characterized in that the parallel guide (8) comprises two or more like spring-mounted articulated joints (10) disposed between the wheel plane (3) and the support plane (6).
    [2]
    Automatic lifting device according to claim 1, characterized in that each joint (10) comprises two equally long supporting members (11) and each such two supporting members (11) are interconnected along knee hinge lines (12) at one end thereof, and at opposite ends are hinged to wheel plane (3) and carrier (6), respectively, running parallel to the knee hinge lines (12) and respective wheel plane hinge line (13) and support hinge line (14) where at least two of the joint links (10) have non-parallel running hinge lines. (12).
    [3]
    Automatic lifting device according to claim 2, characterized in that each of said hinge lines (12, 13, 14) includes a hinge pin (15), which hinge pin (15) defines the axis of rotation (16) of the mutually hinged elements, on the hinge pin (15) for respective wheel plane hinge line (13) and carrier hinge line (14) are each fitted with a coil spring (17) with windings extending around the hinge pin (15) so that each coil spring (17) transmits a lifting torque
    DK 2018 00299 A1 between the support element (11) and the wheel plane (3) and the support plane (6) respectively, which is greatest when the support plane (3) and the wheel plane (6) are closest to each other, and at least when the distance between the wheel plane (3) and carrier (6) is largest.
    [4]
    Automatic lifting device (1) according to one or more of claims 1 to 3, characterized in that the lifting device (1) comprises four similar articulated joints (10) arranged symmetrically two and two opposite each other relative to a common center axis (18) for carrier plane (6) and wheel plane (3), respectively, which center axis (18) extends perpendicular to the two parallel planes (3,6).
    [5]
    Automatic lifting device (1) according to claim 4, characterized in that the wheel plane hinge lines (13) and the carrier hinge lines (14) are spaced from the center axis (18), so that the knee hinge lines (12) move synchronously inwards towards the center axis (18) when the two planes (3.6) under increasing load on the carrier plane (6) are approaching each other.
    [6]
    Automatic lifting device (1) according to one or more of claims 3 to 5, characterized in that the hinge pin (15) for the respective wheel plane hinge line (13) and carrier hinge line (14) is a detachable hinge pin (15) and is mounted in eyes (19,20 ) belonging to wheel plane (3) and support plane (6), respectively, which eyes (19, 20) are located at each end of a mounted hinge pin (15).
    [7]
    Automatic lifting device according to one or more of claims 1 to 6, characterized in that four supporting wheels (5) are mounted on the underside (4) of the wheel plane (3), each carrier wheel (5) being mounted below each wheel plane hinge line (13). ).
    [8]
    Automatic lifting device according to one or more of claims 1 to 7, characterized in that both the wheel plane (3) and the carrier plane (6) have a
    Circular outline, in the planes (3.6), a through recess (21) is made between the four wheel plane hinge lines (13) and between the four support hinge lines (14), which recesses (21) extend from the circular outline and inwards towards the center axis (18).
    [9]
    Automatic lifting device according to one or more of claims 1 to 8, characterized in that the wheel plane (3) and the carrier plane (6) are similar and equal in size.
    [10]
    Use of automatic lifting device (1) according to one or more of claims 1 to 9, characterized in that the lifting device (1) is loaded with up to four wheels or tires stacked flat on the support plane (6) and each other where the resilience of the coil springs (17) is adjusted so that the top tire or wheel is always presented ergonomically correctly and at the same height position for a user.
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    同族专利:
    公开号 | 公开日
    DK180035B1|2020-01-29|
    EP3814250A1|2021-05-05|
    WO2020001718A1|2020-01-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1320407A|1961-04-28|1963-03-08|Device for guiding parallel to itself a platform which can go up and down, in particular the movable height bottom of a container|
    US3805712A|1969-02-14|1974-04-23|D Taylor|Weight responsive table|
    US3659913A|1970-08-07|1972-05-02|Spaulding Fibre Co|Lock-down mechanism|
    US4149762A|1977-08-29|1979-04-17|Amf Incorporated|Self-leveling dispenser|
    FR2632613B1|1988-06-08|1993-10-08|Ilic Zoran|RANGE OF PRODUCTS WITH ITS USES, WITH A VIEW TO COMPENSATING PROBLEMS DUE TO THE VOLUME DIFFERENCE BETWEEN A COMPARTMENT FOR CARRYING OBJECTS OF A VEHICLE AND ITS CONTENT|
    US20110309228A1|2010-06-17|2011-12-22|Trinity, Llc|Product-Lifting Display and Merchandising System|DE102020100171B3|2020-01-07|2021-07-01|Cemecon Ag|Device for holding workpieces, coating system and method for coating a workpiece|
    法律状态:
    2020-01-20| PAT| Application published|Effective date: 20191228 |
    2020-01-29| PME| Patent granted|Effective date: 20200129 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201800299A|DK180035B1|2018-06-27|2018-06-27|Automatic lifting device and its use|DKPA201800299A| DK180035B1|2018-06-27|2018-06-27|Automatic lifting device and its use|
    PCT/DK2019/050205| WO2020001718A1|2018-06-27|2019-06-25|An automatic lifting device and use thereof|
    EP19827256.9A| EP3814250A1|2018-06-27|2019-06-25|An automatic lifting device and use thereof|
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