EP2322059A1 - Motorized bed - Google Patents
Motorized bed Download PDFInfo
- Publication number
- EP2322059A1 EP2322059A1 EP09425493A EP09425493A EP2322059A1 EP 2322059 A1 EP2322059 A1 EP 2322059A1 EP 09425493 A EP09425493 A EP 09425493A EP 09425493 A EP09425493 A EP 09425493A EP 2322059 A1 EP2322059 A1 EP 2322059A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bedspring
- segments
- actuator
- platform
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/04—Extensible bedsteads, e.g. with adjustment of length, width, height
- A47C19/045—Extensible bedsteads, e.g. with adjustment of length, width, height with entire frame height or inclination adjustments
Definitions
- the present invention relates to a motorized bed, having a mechanism which allows to raise a bedspring, or in general a support platform for a mattress, to a certain height from the ground and/or relative to of containment base frame.
- Beds equipped with mechanisms to raise the bedspring or a slatted support are known in order to allow easy access to the space under it for normal household cleaning.
- Beds are also known with a containment frame/drawer-like structure over which one can raise the bedspring to exploit the space inside the drawer-like structure as a normal closet.
- motorized beds have been developed, e.g. as the one describe in US2005/0251915 . It includes four arms of fixed length which, two by two, are hinged at one end thereof to a metal H-shaped base placed in the center of a perimeter frame. The arms support a liftable platform, and are operated by a linear actuator connected between a cross-bar integral with two opposing arms and the metal base.
- the present invention has as its main object to present a motorized bed that solves the problems mentioned earlier.
- connection point This mutual arrangement between the connection point and the hinging points of the segments provides a more favorable inclination of the actuator at the beginning of the lifting, with less inrush power.
- support/connection point is placed, instead, between homologous pairs of hinging points, within the polygonal which has as vertices the hinging points.
- the actuator instead, it is external. But above all, the actuator does not occupy the central part of the frame and/or the compartment under the bedspring, so storage space is maximized.
- the actuator may work in push- or pull-configuration on the segments, so it may be arranged on a side or on the opposite one of all the hinging points.
- the frame in order to improve the overall functionality of the bed, may comprise a drawer-like structure to contain the bedspring or the platform when in lowered position and to delimit a storage compartment under it. So the stored objects are concealed and confined under the bedspring and aesthetics improves.
- the actuator may have as connection point a side of the drawer-like structure which is parallel to said hinging axes.
- the bed of the invention could use a horizontal structure internal to the drawer-like structure and/or placed between the segments as their support as that indicated by the "lower floor 5" in US2005/0251915 , or a drawer-like structure such as that in FR2602655 .
- the actuator is connected substantially at the center of a transverse side of the drawer-like structure.
- a thrust bar or a rigid reinforcing element be fixed internally to said transverse side of the drawer-like structure.
- the actuator is then connected on the rigid element.
- a variant may be taken into account wherein there is still the above-mentioned drawer-like structure, but the connection point of the actuator changes.
- a bar or rigid support element may be fixed transversely within the drawer-like structure in parallel to said hinging axes and spaced from (therefore not fixed to) the nearest side of the drawer-like structure. On said bar or support element the actuator can be then connected.
- the segments may be hinged respectively to the inside of two opposite sides of the drawer-like structure, rather than using a "lower floor 5" as in US2005/02S1915 .
- a support arm connected transversely to and integral with two homologous opposite segments of said parallelograms, on the support arm being connected the actuator in push-configuration.
- the support arm and thus the arm of the actuator, is connected to two segments which are the closest ones to the connection point of the actuator.
- the support arm When an actuator with a very long arm is at disposal, one may also connect it to the farthest segments, minimizing the tilt variation of the actuator during the thrust and optimizing its performance.
- the actuator is preferably a linear actuator with an arm which is in push-configuration on at least one of said segments.
- the actuator is placed near the rear side of the drawer-like structure (the one from which the bedspring moves away when it is lifted) and connected to the closest pair of segments, with which it forms an obtuse angle when the bedspring or the platform is in lowered position.
- the actuator operates in push-configuration and the bedspring or the platform is returned in the lowered position only by gravity. This is to avoid crushing something or someone during the return maneuver with the full force of the actuator.
- two of said segments may be made telescopically extensible so that the bedspring or the platform can be tilted when in the lifted position.
- the actuator may be controlled to slightly draw back the segments when the bedspring or the platform is tilted in the lifted position. In this way the storage compartment gets completely uncovered.
- connection point of the actuator on the frame with respect to a reference horizontal plane may be positioned at a level lower than that of said hinging points.
- the aim is to optimize the inclination of the arm of the actuator to avoid a big stress at the beginning of the lifting action.
- the hinging points of the segments on the bedspring or the platform may be all on a same half of the bedspring or platform.
- a bed according to the invention is shown having an almost rectangular frame 10 (having sides, indicated with counterclockwise order, 10a, 10b, 10c and 10d) inside which there is mounted a lifting mechanism.
- the frame 10 is a sort of parallelepiped hollow drawer-like structure which can be used to store objects in a compartment VN under a bedspring or platform 12, once the bedspring 12 is in a lowered rest position ( Fig. 1 ).
- the mechanism in the bed is preferably symmetrical and is composed of two pairs of articulated segments 16, 20, placed approximately parallel to each other and hinged at their ends to the bedspring 12 through a corner bracket 22, and a plate 14 fixed inside and about at the center of the sides 10a, 10c. References are provided only for a pair, while X1 and X2 denote the hinging axes of the segments 16, 20.
- the segment 16 preferably consists of a piston 30 linearly movable inside a cylinder 32.
- the movement of the piston 30 may be motorized (if the segment 16 consists of linear actuator) or servoed (if, for example, the segment 16 consists of a gas spring).
- the segment 20 instead preferably consists of a rigid metal bar, as may also be the segment 16 in a simplified variant.
- a bar 40 is connected between the two opposite segments 20 and to it there is connected the movable piston 60 of a linear actuator 62, which on the opposite side is hinged to a thrust plate 70, fixed inside the side 10b of the frame 10 and which preferably extends substantially along all the side 10b.
- the actuator 62 is roughly located in the middle of side 10b, and at a height from ground lower than that of the hinging points (or axes) of the segments 16, 20 on the drawer-like structure 10. Thus between them there is a vertical distance H, see Fig. 5 .
- H may be e.g. 10 to 25 cm.
- the mechanism could also have as base frame a structure fixed inside the drawer-like structure, like that e.g. indicated “lower floor 5" in U.S. 2005/0251915 , or the structure with widely spaced segments of FR2602655 .
- the distance between the hinging points is about 20-50cm, for example 25cm.
- stop brackets 82 On a bar 80 (optional) hinged to the piston 32 are mounted stop brackets 82, adapted to interpose between the piston 32 and the cylinder 30 blocking their relative position.
- the bed works with the following configurations and operational phases:
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
Description
- The present invention relates to a motorized bed, having a mechanism which allows to raise a bedspring, or in general a support platform for a mattress, to a certain height from the ground and/or relative to of containment base frame.
- Beds equipped with mechanisms to raise the bedspring or a slatted support are known in order to allow easy access to the space under it for normal household cleaning. Beds are also known with a containment frame/drawer-like structure over which one can raise the bedspring to exploit the space inside the drawer-like structure as a normal closet.
- Clearly not only a lifting mechanism being easy to make (low cost) is needed but also one not very tiring to operate. The bedspring or the slatted support are raised by hand, and to reduce the effort required usually the mechanism comes with gas or helical springs variously arranged which servo-assist the lifting movement. In any case, however, there remain some disadvantages. The springs compensate enough the weight of the bedspring to be lifted, but not all, so some effort remains. Also, for manual operation the user always has to bend down a lot to grab the bedspring. It is understandable that for elderly or handicapped people the requested operation is almost impossible or at least to avoid.
- Therefore, motorized beds have been developed, e.g. as the one describe in
US2005/0251915 . It includes four arms of fixed length which, two by two, are hinged at one end thereof to a metal H-shaped base placed in the center of a perimeter frame. The arms support a liftable platform, and are operated by a linear actuator connected between a cross-bar integral with two opposing arms and the metal base. - Such mechanisms present two problems. First, the actuator occupies most of the space under the bedspring, so the capacity to contain material is impaired. Second, the actuator is almost horizontal when the bedspring is fully lowered, requiring substantial inrush power to lift the bedspring at the beginning of the upward travel.
- The present invention has as its main object to present a motorized bed that solves the problems mentioned earlier.
- This and other objects are achieved through a motorized bed comprising
- a base frame;
- two pairs of segments rotatably hinged at an end thereof to the frame,
- a bedspring or support platform for a mattress to opposite sides of which there are connected the other ends of the segments, two segments per side, so as to constitute as a whole two articulated parallelograms adapted to make the bedspring or the platform liftable to a certain height from ground and/or relative to the frame keeping it horizontal;
- an actuator for lifting the bedspring or the platform which is mounted with a connection point on the frame and adapted to act on at least one of said segments,
- This mutual arrangement between the connection point and the hinging points of the segments provides a more favorable inclination of the actuator at the beginning of the lifting, with less inrush power. In
US2005/0251915 the support/connection point is placed, instead, between homologous pairs of hinging points, within the polygonal which has as vertices the hinging points. In the invention, instead, it is external. But above all, the actuator does not occupy the central part of the frame and/or the compartment under the bedspring, so storage space is maximized. - In general, the actuator may work in push- or pull-configuration on the segments, so it may be arranged on a side or on the opposite one of all the hinging points.
- The frame, in order to improve the overall functionality of the bed, may comprise a drawer-like structure to contain the bedspring or the platform when in lowered position and to delimit a storage compartment under it. So the stored objects are concealed and confined under the bedspring and aesthetics improves. In this case, the actuator may have as connection point a side of the drawer-like structure which is parallel to said hinging axes. Thus the drawer-like structure is exploited as structural element, thereby simplifying the frame. It is to be noted, however, that the bed of the invention could use a horizontal structure internal to the drawer-like structure and/or placed between the segments as their support as that indicated by the "lower floor 5" in
US2005/0251915 , or a drawer-like structure such as that inFR2602655 - To better distribute the thrust on the drawer-like structure it is preferred that the actuator is connected substantially at the center of a transverse side of the drawer-like structure.
- To strengthen the drawer-like structure at the point of reaction to the thrust, it is preferable that a thrust bar or a rigid reinforcing element be fixed internally to said transverse side of the drawer-like structure. The actuator is then connected on the rigid element.
- A variant may be taken into account wherein there is still the above-mentioned drawer-like structure, but the connection point of the actuator changes. A bar or rigid support element may be fixed transversely within the drawer-like structure in parallel to said hinging axes and spaced from (therefore not fixed to) the nearest side of the drawer-like structure. On said bar or support element the actuator can be then connected.
- To simplify the mechanism the segments may be hinged respectively to the inside of two opposite sides of the drawer-like structure, rather than using a "lower floor 5" as in
US2005/02S1915 - To connect the actuator to the segments it is preferred using a support arm connected transversely to and integral with two homologous opposite segments of said parallelograms, on the support arm being connected the actuator in push-configuration.
- To limit the extension of the arm of the actuator, the support arm, and thus the arm of the actuator, is connected to two segments which are the closest ones to the connection point of the actuator. When an actuator with a very long arm is at disposal, one may also connect it to the farthest segments, minimizing the tilt variation of the actuator during the thrust and optimizing its performance.
- To simplify the structure, the actuator is preferably a linear actuator with an arm which is in push-configuration on at least one of said segments. The actuator is placed near the rear side of the drawer-like structure (the one from which the bedspring moves away when it is lifted) and connected to the closest pair of segments, with which it forms an obtuse angle when the bedspring or the platform is in lowered position.
- For security reasons it is preferred that the actuator operates in push-configuration and the bedspring or the platform is returned in the lowered position only by gravity. This is to avoid crushing something or someone during the return maneuver with the full force of the actuator.
- To facilitate access to the storage compartment, two of said segments may be made telescopically extensible so that the bedspring or the platform can be tilted when in the lifted position. Furthermore, the actuator may be controlled to slightly draw back the segments when the bedspring or the platform is tilted in the lifted position. In this way the storage compartment gets completely uncovered.
- Advantageously, the connection point of the actuator on the frame with respect to a reference horizontal plane may be positioned at a level lower than that of said hinging points. The aim is to optimize the inclination of the arm of the actuator to avoid a big stress at the beginning of the lifting action.
- To maximize the space for access to the storage compartment, the hinging points of the segments on the bedspring or the platform may be all on a same half of the bedspring or platform.
- The advantages of the invention will be clearer by the following description of a preferred embodiment, shown in the attached drawing where:
-
Fig. 1 shows an isometric view of a bed according to the invention (bedspring in the lowered position); -
Fig. 2 shows an isometric view of the bed ofFig. 1 (bedspring in the lifted position); -
Fig. 3 shows an isometric view of the bed ofFig. 1 (bedspring in the lifted position and tilted); -
Figs. 4-6 show a side sectional view of the bed offigs. 1-3 respectively; -
Fig. 7 shows a front isometric view of the mechanism alone in the bed ofFig. 1 ; -
Fig. 8 shows a rear isometric view of the mechanism offig. 7 . - In
Fig. 1 a bed according to the invention is shown having an almost rectangular frame 10 (having sides, indicated with counterclockwise order, 10a, 10b, 10c and 10d) inside which there is mounted a lifting mechanism. Theframe 10 is a sort of parallelepiped hollow drawer-like structure which can be used to store objects in a compartment VN under a bedspring orplatform 12, once thebedspring 12 is in a lowered rest position (Fig. 1 ). - The mechanism in the bed is preferably symmetrical and is composed of two pairs of
articulated segments bedspring 12 through acorner bracket 22, and aplate 14 fixed inside and about at the center of thesides 10a, 10c. References are provided only for a pair, while X1 and X2 denote the hinging axes of thesegments - The
segment 16 preferably consists of apiston 30 linearly movable inside acylinder 32. The movement of thepiston 30 may be motorized (if thesegment 16 consists of linear actuator) or servoed (if, for example, thesegment 16 consists of a gas spring). Thesegment 20 instead preferably consists of a rigid metal bar, as may also be thesegment 16 in a simplified variant. - Overall, the four
segments frame 10 and thebedspring 12 two articulated parallelograms. - A
bar 40 is connected between the twoopposite segments 20 and to it there is connected themovable piston 60 of alinear actuator 62, which on the opposite side is hinged to athrust plate 70, fixed inside theside 10b of theframe 10 and which preferably extends substantially along all theside 10b. Theactuator 62 is roughly located in the middle ofside 10b, and at a height from ground lower than that of the hinging points (or axes) of thesegments like structure 10. Thus between them there is a vertical distance H, seeFig. 5 . H may be e.g. 10 to 25 cm. - Note that the mechanism could also have as base frame a structure fixed inside the drawer-like structure, like that e.g. indicated "lower floor 5" in
U.S. 2005/0251915 , or the structure with widely spaced segments ofFR2602655 - The distance between the hinging points is about 20-50cm, for example 25cm.
- On a bar 80 (optional) hinged to the
piston 32 are mountedstop brackets 82, adapted to interpose between thepiston 32 and thecylinder 30 blocking their relative position. - The bed works with the following configurations and operational phases:
- I) With the bedspring in the lowered position (
Fig. 1 and4 ) thesegments frame 10. Thepistons - II) The
bedspring 12 can be brought in raised position to remake the bed (Fig. 2 and5 ), wherein it is parallel to theframe 10 and the ground. Theactuator 62 is actuated and itspiston 60 extends, so as to push thebar 40, which therefore raises and make thesegments Figure 5 ). During and after the displacement thebedspring 12 remains almost horizontal thanks to articulated-parallelogram structure of thesegments - III) From the previous position the
bedspring 12 can be further raised, to bring it to a position of easy access to the compartment VN for the user, seeFig. 3 and6 . Thepiston 30 is operated or unlocked, and is pushed outwards and make thebedspring 12 rotate on the bar, 20, see arrow F inFig. 6 . Thebar 80 and thebrackets 82 are pushed against thesegment 16, blocking the position of thebedspring 12. Thepiston 62 can remain still, or a simultaneous backing can be coordinated (as inFig. 6 ) through control of the actuator 60 (as inFig. 3 ) to make the back of thebedspring 12 lower and to gain a greater inclination for thebedspring 12 itself. Thebedspring 12 disappears more inside theframe 10 and thus leaves more room to work in the compartment VN. This synchronism between the twopistons - To bring the
bedspring 12 to its original state, the reverse sequence of positions (from III to I) is run backwards.
Claims (14)
- Motorized bed comprising- a base frame (10);- two pairs of segment (16, 20) rotatably hinged at an end thereof to the frame,- a bedspring or support platform (12) for a mattress to opposite sides of which there are connected the other ends of the segments, two segments per side, so as to constitute as a whole two articulated parallelograms adapted to make the bedspring or the platform liftable to a certain height from ground and/or relative to the frame (10) keeping it horizontal;- an actuator (62) for lifting the bedspring or the platform which is mounted with a connection point on the frame and adapted to act on at least one of said segments, characterized in that said connection point is spaced from the hinging points of the segments on the frame in a direction orthogonal to their hinging axes (X1, X2) and horizontal so that such hinging points lie, with respect to a vertical plane, all on the same part with respect to said connection point.
- Bed according to claim 1, wherein the frame comprises a drawer-like structure (10) to contain the bedspring or the platform in the lowered position and to delimit a storage compartment (VN) below it, the actuator having as connection point a side (10b) of the drawer-like structure which is parallel to said hinging axes.
- Bed according to claim 2, wherein the actuator is connected substantially at the center of a transverse side (10b) of the drawer-like structure.
- Bed according to claim 2 or 3, comprising a thrust bar (70) or rigid reinforcing element which is fixed internally to said transverse side (10b) of the drawer-like structure (10) and on which the actuator is connected.
- Bed according to claim 1, wherein the frame includes a drawer-like structure (10) to contain the bedspring or the platform in the lowered position and to define a storage compartment (VN) below it, a bar or rigid support element being fixed transversely within the drawer-like structure in parallel to said hinging axes and spaced from the nearest side of the drawer-like structure, on said bar or support element there being connected the actuator.
- Bed according to any of the previous claims 2 to 6, wherein the segments are hinged respectively to the inside of two opposite sides (10a, 10c) of the drawer-like structure.
- Bed according to any of the preceding claims, comprising a support arm (40) connected transversely to and integral with two homologous opposite segments (20) of said parallelograms, on the support arm being connected the actuator in push-configuration.
- Bed according to claim 7, wherein the support arm (40) is connected to two segments (20) which are the closest ones to the connection point of the actuator.
- Bed according to any of the preceding claims, wherein the actuator operates in push-configuration and the bedspring or the platform is returned in the lowered position only by gravity.
- Bed according to any of the preceding claims, wherein two of said segments are telescopically extensible so that the bedspring or the platform can be tilted when in the lifted position.
- Bed according to claim 10, wherein the actuator is controlled to draw back slightly the segments when the bedspring or the platform is tilted in the lifted position.
- Bed according to any of the preceding claims, wherein the connection point of the actuator on the frame with respect to a reference horizontal plane is positioned at a lower level than that of said hinging points.
- Bed according to any of the preceding claims, wherein the actuator is a linear actuator with an arm (60) whish is in push-configuration on at least one of said segments and with which it formes an obtuse angle when the bedspring or the platform is in the lowered position.
- Bed according to any of the preceding claims, wherein the hinging points of the segments on the bedspring or the platform are all on a same half of the bedspring or platform.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09425493A EP2322059A1 (en) | 2009-11-16 | 2009-11-16 | Motorized bed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09425493A EP2322059A1 (en) | 2009-11-16 | 2009-11-16 | Motorized bed |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2322059A1 true EP2322059A1 (en) | 2011-05-18 |
Family
ID=42072842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09425493A Withdrawn EP2322059A1 (en) | 2009-11-16 | 2009-11-16 | Motorized bed |
Country Status (1)
Country | Link |
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EP (1) | EP2322059A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2387914A1 (en) | 2010-05-18 | 2011-11-23 | RETI GRITTI S.p.A. | Device for adjusting a mattress support |
ITPD20110217A1 (en) * | 2011-06-27 | 2012-12-28 | Biemmereti S R L | HANDLING MECHANISM FOR A CONTAINER BED NETWORK |
ITTV20110183A1 (en) * | 2011-12-29 | 2013-06-30 | Pessottoreti S A S | LIFTING MECHANISM |
WO2013098787A3 (en) * | 2011-12-29 | 2013-11-14 | Pessottoreti S.A.S. | Lifting mechanism |
ITPN20120043A1 (en) * | 2012-08-03 | 2014-02-04 | Dielle S P A | BED STRUCTURE PROVIDED WITH CONTAINER ROOMS |
EP2901895A1 (en) | 2014-01-31 | 2015-08-05 | Pessottoreti S.A.S. | Device for lifting a bed-spring |
EP3222170A1 (en) * | 2016-03-24 | 2017-09-27 | La Roche | Synchronization system for lifting a multi-height bed |
CN111306140A (en) * | 2020-02-28 | 2020-06-19 | 贵州詹阳动力重工有限公司 | Limiting mechanism of oil cylinder of wheel type multipurpose engineering truck |
CN113619805A (en) * | 2021-08-17 | 2021-11-09 | 北京中科宇航技术有限公司 | Launching platform for vertical take-off and landing aircraft |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050251915A1 (en) * | 2004-05-13 | 2005-11-17 | Adan Elizondo | System for raising and lowering the upper platform of a bed |
WO2009126262A2 (en) * | 2008-04-09 | 2009-10-15 | Burnett John A | Bed with automatic mattress lifting system |
EP2160961A1 (en) * | 2008-09-03 | 2010-03-10 | Pessotto Reti SAS di Pessotto G. & C. | Articulated mechanism for a bed |
-
2009
- 2009-11-16 EP EP09425493A patent/EP2322059A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050251915A1 (en) * | 2004-05-13 | 2005-11-17 | Adan Elizondo | System for raising and lowering the upper platform of a bed |
WO2009126262A2 (en) * | 2008-04-09 | 2009-10-15 | Burnett John A | Bed with automatic mattress lifting system |
EP2160961A1 (en) * | 2008-09-03 | 2010-03-10 | Pessotto Reti SAS di Pessotto G. & C. | Articulated mechanism for a bed |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2387914A1 (en) | 2010-05-18 | 2011-11-23 | RETI GRITTI S.p.A. | Device for adjusting a mattress support |
ITPD20110217A1 (en) * | 2011-06-27 | 2012-12-28 | Biemmereti S R L | HANDLING MECHANISM FOR A CONTAINER BED NETWORK |
RU2607973C2 (en) * | 2011-12-29 | 2017-01-11 | Пессотторети С.А.С. | Lifting mechanism |
WO2013098787A3 (en) * | 2011-12-29 | 2013-11-14 | Pessottoreti S.A.S. | Lifting mechanism |
ITTV20110183A1 (en) * | 2011-12-29 | 2013-06-30 | Pessottoreti S A S | LIFTING MECHANISM |
ITPN20120043A1 (en) * | 2012-08-03 | 2014-02-04 | Dielle S P A | BED STRUCTURE PROVIDED WITH CONTAINER ROOMS |
EP2901895A1 (en) | 2014-01-31 | 2015-08-05 | Pessottoreti S.A.S. | Device for lifting a bed-spring |
EP3222170A1 (en) * | 2016-03-24 | 2017-09-27 | La Roche | Synchronization system for lifting a multi-height bed |
FR3049180A1 (en) * | 2016-03-24 | 2017-09-29 | La Roche | MULTI-HEIGHT BED LIFT SYNCHRONIZATION SYSTEM |
CN111306140A (en) * | 2020-02-28 | 2020-06-19 | 贵州詹阳动力重工有限公司 | Limiting mechanism of oil cylinder of wheel type multipurpose engineering truck |
CN111306140B (en) * | 2020-02-28 | 2020-12-08 | 贵州詹阳动力重工有限公司 | Limiting mechanism of oil cylinder of wheel type multipurpose engineering truck |
CN113619805A (en) * | 2021-08-17 | 2021-11-09 | 北京中科宇航技术有限公司 | Launching platform for vertical take-off and landing aircraft |
CN113619805B (en) * | 2021-08-17 | 2023-12-22 | 北京中科宇航技术有限公司 | A launch platform for vertical take-off and landing aircraft |
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