• 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 a gas spring unit with at least one piston rod (10, 11) which is movable from a starting position against a restoring force in a pressure position, in which pressure position, the at least one piston rod (10, 11) is retracted into a gas pressure chamber. For the inventive gas spring unit (8, 9) is characteristic that the gas spring unit (8, 9) has two piston rods (10, 11) which are retractable from opposite starting positions in the direction of each other in their associated gas pressure chamber. The present invention is also concerned with a piece of furniture (1) having at least one furniture leg (2, 3) in which the gas pressure spring unit (8, 9) is designed according to the invention.
    公开号:CH708382B1
    申请号:CH01769/13
    申请日:2013-10-17
    公开日:2017-08-31
    发明作者:Jäger Odin；Seifritz Ralf
    申请人:B Ketterer Söhne Gmbh & Co Kg；
    IPC主号:
    专利说明:

    Description: The invention relates to a gas spring unit according to the preamble of patent claim 1.
    The invention further relates to a furniture according to the preamble of claim 10.
    There are already various furniture known which have at least one furniture leg, in which furniture leg is provided for adjusting the furniture leg length and oriented in furniture leg longitudinal direction spindle drive a height adjustment. So you already know work tables that have a table top as a work surface, which is supported on both narrow sides of the table top by a respective furniture leg. In order to raise or lower the work surface when needed, these prior art work tables to the aforementioned height adjustment. Such height adjustment devices have a hand crank or a drive motor, which hand crank or which drive motor is in driving connection with the spindle drives located in the furniture legs. The adjustment of the work surface is to be carried out regularly even if the work surface still the required work equipment, such as computer, screen and the like, are. In order to be able to raise the work surface with comparatively little effort to the desired working height despite this, still on the work surface working equipment, the extension movement is supported at least one furniture leg by means of at least one gas spring unit.
    Meanwhile, the requirements have changed and it is the possibility of a comparatively long travel of the height adjustment required, which should be movable from a very low working height to a relatively high working height. In order to achieve such long travel ranges, telescopic spindle drives are used. In contrast, accordingly telescoping gas spring units are less well known and possibly also expensive to design and manufacture.
    It is therefore an object to provide a gas spring unit of the type mentioned above, which is characterized by a comparatively long spring travel and their design and manufacture yet should not be associated with excessive effort.
    In addition, the object is to provide a piece of furniture of the type mentioned above, the height and in particular the working height over a comparatively long travel even with little effort is variable, if the furniture carries more loads.
    These objects are achieved by a gas spring unit according to the features of patent claim 1 and by a furniture according to the features of claim 10.
    The inventive gas spring unit has two piston rods, which are retractable from opposite starting positions in the direction of each other in their associated gas pressure chamber. Since the inventive gas spring unit has two piston rods which exert their compressive forces in opposite directions, add the spring travel of the piston rods to a relatively long travel of the gas spring unit. Since the inventive gas spring unit does not require the telescoping of the piston rods, the inventive gas spring unit is relatively simple in construction and manufacturing.
    It is possible that the piston rods of the novel gas spring unit is associated with a common gas pressure pipe or a common gas pressure chamber. It is also possible that acts on the side facing away from the piston rod sides of the piston the same volume of gas.
    Preferably, however, an embodiment according to the invention, wherein the gas spring unit has two gas springs whose gas pressure chambers are rigidly connected together at least in the direction of movement of the piston rods of these gas springs. In this preferred embodiment of the inventive gas spring unit two per se conventional gas springs are connected together so that the on both sides of the gas spring unit above piston rods from opposite starting positions in the direction of each other in the respective associated gas pressure chamber are retracted.
    Thus, the inventive gas spring unit in the pressure position of the gas springs is comparatively compact and short, it is particularly advantageous if the gas pressure chambers of the gas springs are arranged side by side and connected to each other and if the piston rods in their initial positions on opposite sides on their assigned Protrude gas pressure chamber.
    In order to connect two per se conventional gas springs to the inventive gas spring unit with each other, it is advantageous if the gas springs are frontally held between two gas pressure chamber connectors. In this embodiment, the gas springs are practically clamped between two gas pressure chamber connectors.
    A particularly simple and expedient embodiment according to the invention provides that the gas pressure chamber connectors are designed plate-shaped.
    Thus, the pressurized gas springs, the gas pressure chamber connector can not spread so that the gas springs laterally escape to the outside, it is expedient if the gas pressure chamber connectors are connected to each other via at least one connecting rod.
    In this case, a preferred embodiment according to the invention that the gas pressure chamber connectors are connected to each other via two connecting rods, which are arranged on opposite longitudinal sides of the gas spring unit.
    A preferred embodiment according to the invention provides that each gas spring connector is bolted to one of the gas springs and that on the piston rod facing away from the end face of the gas pressure chamber of this gas spring at least one threaded opening and / or at least one threaded rod for a screw with the Gas pressure chamber connector is provided. The usual gas springs have regularly on their side facing away from the piston rod end a threaded rod or preferably a threaded opening. This provided on the usual gas springs threaded opening or threaded rod can now be used to attach the gas pressure chamber connector by means of a screw on one of the two gas pressure chambers to be joined together.
    In the furniture of the type mentioned above, the inventive solution is that the gas spring unit is formed according to at least one of the embodiments described above.
    The invention will be described in more detail with reference to a preferred embodiment. Further developments according to the invention will become apparent from the claims in conjunction with the description and the drawings.
    It shows:
    Fig. 1 is a shown in a schematic perspective view of furniture with furniture legs whose leg length for adjusting the height and in particular the working height of the furniture has a height adjustment, which has a crank in drive connection standing spindle drives, each of which provided a spindle drive in one of the furniture legs is, wherein the extension movement of the furniture legs is supported by means of a gas spring unit,
    2 integrated in a furniture leg of the furniture shown in Figure 1 and consisting of spindle drive and gas spring unit assembly,
    Fig. 3, the gas spring unit of the height adjustment of the furniture shown in Fig. 1, and Fig. 4, the gas spring unit of FIG. 3 in an exploded single part illustration.
    In Fig. 1, a furniture 1 is shown. The furniture 1 has at least one furniture leg 2, 3, in which furniture leg 2, 3 a for adjusting the furniture leg length certain and oriented in furniture leg longitudinal direction spindle drive 4, 5 is provided a height adjustment. Trained here as a work table furniture 1 has two furniture legs 2, 3, which support a rectangular and serving as a work surface table top 6. In each case one of the furniture legs 2, 3 is arranged on each narrow side of the table top 6.
    In each of the furniture legs 2, 3, a spindle drive 4, 5 is provided in each case. The spindle drives 4, 5 are connected via an electric drive motor or - as here - via a hand crank 7 with each other in drive connection. In this case, the extension movement of the furniture legs 2, 3 is supported by means of at least one gas spring unit 8, 9, which is provided in at least one of the furniture legs 2, 3.
    The height adjustment of the furniture 1 shown here, in each of the furniture legs 2.3 each have at least one gas spring unit 8, 9. Since the spindle drives are 4.5 designed as telescopic spindle drives and have a correspondingly long travel, and the gas spring units 8, 9 must have a correspondingly long travel. The gas spring units 8, 9 have for this purpose two piston rods 10,11, which are retractable from opposite starting positions in the direction of each other in their associated gas pressure chamber 12,13. The gas pressure spring units 8, 9 used here have two gas pressure springs 14, 15 whose gas pressure chamber 12, 13 are rigidly connected to one another, at least in the direction of movement of the piston rods 10, 11 of these gas pressure springs 14, 15. The gas pressure chambers 12, 13 of the gas pressure springs 14, 15 are arranged side by side and connected to each other. In this case, the piston rods 10, 11 are in their initial positions on opposite sides over their associated gas pressure chamber 12, 13 before.
    3 and 4 it can be seen that the gas springs 14, 15 are held on the face side between two gas pressure chamber connectors 16, 17. These gas pressure chamber connectors 16, 17 are designed plate-shaped here. Thus, the gas springs 14, 15 can be securely and firmly clamped between the gas pressure chamber connectors 16, 17, the gas pressure chamber connectors 16,17 are connected to each other via two connecting rods 18,19 arranged on opposite longitudinal sides of the gas spring unit 8 or 9 are. Each gas pressure chamber connector 16, 17 of the gas spring units 8 and 9 is screwed to one of the gas springs 14, 15. Each of the gas springs 14, 15 has on the piston rod 10, 11 facing away from the end face of the gas pressure chamber 12, 13 a threaded opening 20 which is provided for a screw connection with the adjacent gas pressure chamber connector 16 or 17.
    权利要求:
    Claims (10)
    [1]
    In order to enable an overlong spring travel with the aid of the inventive gas spring unit, each of the gas springs used for this purpose can also be designed as a telescopic gas spring. However, since the gas-pressure spring unit according to the invention does not presuppose telescoping capability, the gas spring unit according to the invention is distinguished by its simple construction and manufacturability. The gas pressure spring units 8, 9 shown in FIGS. 1 to 4 are used here in the height adjustment of a piece of furniture 1. However, the gas spring unit according to the invention is also usable anywhere where a gas spring unit is required with an excessively long travel. Legend of Reference Numbers 1 Furniture 2 Furniture leg 3 Furniture leg 4 Spindle drive 5 Spindle drive 6 Table top 7 Hand crank 8 Gas spring unit 9 Gas strut unit 10 Piston rod 11 Piston rod 12 Gas pressure chamber 13 Gas pressure chamber 14 Gas spring 15 Gas spring 16 Gas pressure chamber connector 17 Gas pressure chamber connector 18 Connecting rod 19 connecting rod 20 threaded opening claims
    1. gas pressure spring unit (8, 9) with at least one piston rod (10,11) which is movable from a starting position against a restoring force in a pressure position, in which pressure position the at least one piston rod (10,11) is retracted into a gas pressure chamber , characterized in that two piston rods (10,11) are arranged, which are retractable from opposite starting positions in the direction of each other in the associated gas pressure chamber.
    [2]
    2. Gas spring unit according to claim 1, characterized in that the piston rods (10,11) is associated with a common gas pressure chamber.
    [3]
    3. Gas spring unit according to claim 1, characterized in that the two piston rods (10, 11) each have a gas pressure chamber (12, 13) is associated, wherein the gas pressure chambers, at least in the direction of movement of the piston rods (10, 11) are rigidly interconnected.
    [4]
    4. Gas spring unit according to claim 3, characterized in that the gas pressure chambers are arranged side by side and connected to each other, and that the piston rods (10, 11) protrude in their initial positions on opposite sides over their associated gas pressure chamber.
    [5]
    5. Gas spring unit according to claim 3 or 4, characterized in that the gas pressure chambers are held on the end face between two gas pressure chamber connectors (16, 17).
    [6]
    6. Gas spring unit according to claim 5, characterized in that the gas pressure chamber connectors (16, 17) are designed plate-shaped.
    [7]
    7. Gas spring unit according to claim 5 or 6, characterized in that the gas pressure chamber connectors (16, 17) via at least one connecting rod (18, 19) are interconnected.
    [8]
    8. Gas spring unit according to claim 7, characterized in that the gas pressure chamber connectors (16, 17) via two connecting rods (18, 19) are interconnected, which are arranged on opposite longitudinal sides of the gas pressure chambers.
    [9]
    9. Gas spring unit according to one of claims 5 to 8, characterized in that each gas pressure chamber connector (16, 17) is screwed to one of the two gas pressure chambers, and that on the respective piston rod (10, 11) facing away from the end face the gas pressure chambers at least one threaded opening (20) and / or at least one threaded rod for a screw connection with the gas pressure chamber connector (16, 17) is provided.
    [10]
    10. Furniture (1) with at least one furniture leg (2, 3), in which furniture leg (2, 3) for adjusting the furniture leg length certain and in furniture leg longitudinally oriented spindle drive (4, 5) is provided a height adjustment, the a hand crank (7) and / or a drive motor, which hand crank (7) or which drive motor with the spindle drive (4, 5) of the at least one furniture leg (2, 3) is in drive connection, wherein the extension movement of the at least one furniture leg (2 , 3) is supported by at least one gas spring unit (8, 9), characterized in that the gas pressure spring unit (8, 9) is designed according to one of claims 1 to 9.
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    同族专利:
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    DE102013011805B4|2016-02-18|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1433867A|1965-05-13|1966-04-01|Air spring|
    DE7133466U|1971-09-02|1971-12-09|Stabilus Ind U Handelsges Mbh|Multiple gas spring|
    DE2547664A1|1975-10-24|1977-04-28|Suspa Federungstech|Cylindrical piston operated air spring - has dual operating pistons and piston rods in single thin cylinder|
    DE2907101A1|1979-02-23|1980-09-04|Bauer Fritz & Soehne Ohg|Liquid filled shock absorber - has twin offset pistons which can both travel full length of unit, giving double stroke|
    FR2547343B1|1983-06-08|1988-09-09|Peugeot|PNEUMATIC SPRING WITH TWO SLIDING RODS|
    DE29919214U1|1999-11-03|2000-01-05|Dewert Antriebs Systemtech|Electromotive furniture drive|
    DE102006034249B3|2006-07-21|2007-12-27|Stabilus Gmbh|Gas spring arrangement for raising rotatable flap in motor vehicle, has locking device mechanically locking piston rod in extended position, where extension force acting on piston is equal or smaller than weight force acting against flap|
    US20090315376A1|2008-06-19|2009-12-24|Takuro Nishiwaki|Reclinable chair with adjustable parallel locking gas spring device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013011805.0A|DE102013011805B4|2013-07-16|2013-07-16|Gas spring unit and furniture with a gas spring unit|
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