WO2010121622A1 - Système de marchepied rétractable - Google Patents

Système de marchepied rétractable Download PDF

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Publication number
WO2010121622A1
WO2010121622A1 PCT/DK2010/050087 DK2010050087W WO2010121622A1 WO 2010121622 A1 WO2010121622 A1 WO 2010121622A1 DK 2010050087 W DK2010050087 W DK 2010050087W WO 2010121622 A1 WO2010121622 A1 WO 2010121622A1
Authority
WO
WIPO (PCT)
Prior art keywords
retractable
step system
retractable step
cabinet
frame
Prior art date
Application number
PCT/DK2010/050087
Other languages
English (en)
Inventor
Mai Mortensen
Original Assignee
Ipadelta Aps
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ipadelta Aps filed Critical Ipadelta Aps
Publication of WO2010121622A1 publication Critical patent/WO2010121622A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/005—Ladders in use as furniture or ladders in relation to furniture, e.g. in cupboards
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C12/00—Step-stools

Definitions

  • the present invention relates to a retractable step system, such a retractable step system can be positioned on any suitable mounting surface such as in cabinets, under a cabinet or table, on walls or floors.
  • a retractable step system By mounting the retractable step system in a suitable position it can be used as a step making the user able to reach objects at a high position and giving a better working position for example if the retractable step system is positioned in a kitchen cabinet under the sink thus it can give children and people of low height a better working position at the sink.
  • US 5,014,818 shows a step-stool for enabling a child to climb up to the top surface of a cabinet and the step-stool is made of a top piece, a bottom piece and a middle step or platform piece adapted to slide out from between the top piece and the bottom piece to form a step.
  • the step-stool can be fixed on into the floor of a kitchen cabinet making it possible for a child to have access to a counter.
  • a retractable step system comprising a stationary mounting means to where there is slidably arranged a step, where the step is operatively coupled via guiding means to the stationary mounting means for movement between a first position and a second position, wherein the guiding means comprises at least one linear guide rail and user-induced locking means which are activated when force above a predetermined force is applied to the step.
  • the retractable step system When using the retractable step system according to the invention it is possible to position the retractable step system in any height as it is self-contained and does thus not need support from the floor. Further the retractable step system has a locking means that locks when a force above a certain predetermined force is applied to it this can for example be the case where the force originates from the weight from the person using the step.
  • a locking means that locks when a force above a certain predetermined force is applied to it this can for example be the case where the force originates from the weight from the person using the step.
  • mounting surface is to be understood any surface suitable for mounting the retractable step system that could be under, over, inside or on the side of a piece of furniture which could be a cabinet or table, or on a wall, ceiling or floor.
  • the stationary mounting means comprises at least one flange or fitting for mounting on an article of furniture such as a cabinet, preferably a kitchen cabinet.
  • flange is to be understood any surface of the stationary mounting means that is usable for fixing on the mounting surface.
  • the guiding means comprises a frame wherein at least part of the step is slidably arranged.
  • a frame is an easy way to guide the step so that it can be extended and retracted in an easy way.
  • the linear guide rail comprises at least a first part of the frame.
  • the sides of the frame secures that the step can only be moved in and out and not side ways.
  • the guiding means comprises at least one rolling element for reducing the sliding friction within the guiding means.
  • the rolling elements could be balls, cylinders or wheels.
  • the guiding means comprises two linear guide rails situated substantially on each side of the step and preferably each linear guide rails comprises a user-induced locking means. Placing the guide rails on each side of the step gives good stability to the step moreover it is preferred that the mechanism that facilitates the locking of the step in the current position is part of the linear guide rails.
  • the step comprises cavities and the guiding means comprises two linear guide rails situated at least partly in the cavities. The cavities could be grooves in the step where in the guide rails could be positioned this protects the guide rails especially if the cavities are under the step thus securing that water or any other fluid that is spilled on the step does not get in contact with the guide rails.
  • the locking means locks by increasing the sliding coefficient of friction between the stationary mounting means and the step.
  • Increasing the coefficient of friction secures it is more difficult to move the step when the locking means are activated. This is especially important if the sliding friction is low when the locking means are not activated hence the step is then easy to extend and when the locking means are activated it is difficult to move the step. This could be done by pivoting the step giving it a slight inclination downwards at the outer pointing outwards where the upper edge of the back of the step then gets in contact with another material could be the frame thus raising the coefficient of friction.
  • the locking means comprises a protrusion and a depression which interlocks when the user-induced locking means are activated.
  • a protrusion is interlocked with a depression it is not possible to move the step.
  • the locking means comprises at least one compressible object which is compressed when weight is applied to the step in such a way that when the weight applied is over the predetermined weight the compressible object is compressed sufficiently to activate the locking means.
  • the compressible object could be a spring such as a spiral or laminated spring, elastomer, rubber or any other material having a low Young's modulus and high yield strain compared with other materials.
  • a further advantageously embodiment is wherein the step is pivoted when the user- induced locking means are activated whereby the step is given a different inclination. It is to be understood that this inclination is only minor as a large inclination would make the step difficult to use.
  • a further advantageously embodiment is, wherein the step comprises grooves suitable for leading liquid away from the step.
  • the fluid could be water or any other fluid that is used in a normal household. Having fluid on the step can make it slippery thus it is a potential safety hazard for the user accordingly it is advantageously to have grooves in the step that can lead the fluid away from the step. Additionally it would be preferred that the grooves have an inclination in relation to the upper surface of the step. This secures that the fluid will escape the step regardless of the inclination of the step.
  • the grooves could also terminate on the edge of the step hereby making it possible for fluid to exit the step at a predetermined location. This can secure that fluid is not spilled inside a cabinet where the retractable step system is mounted or secure that it lead away to a fluid collecting container.
  • the force has a component that is orthogonal in relation to the plane defined by the step.
  • the step would be used to stand or place things on it is advantageous if the force is downwards on the step, as then force originating in the weight of the object on the step is in substantially the same direction thus the problem that the weight could unlock the step is hindered.
  • the force could be at least partly is the gravitational force from a weight applied to the step. This having the advantage that the step locks when the step is used and when not in use it is easy to extend and retract the step.
  • the retractable step system is mounted in or on a cabinet via at least two arms so that it occupies as little space as possible inside the cabinet and can make room for any permanent installation inside the cabinet.
  • the arms could comprise a first section and a second section where the first section is attached at each side of the retractable step system and the second section is attached to the cabinet.
  • the arms have the same lengths, this secures that the step is positioned in the centre of the cabinet giving an optimal working position especially if the cabinet is a bathroom vanity or a cabinet in a kitchen that is placed under the sink.
  • the arms have at least two different lengths
  • the retractable step system can then be placed anywhere within the cabinet this could be advantageous if a child have to use the step and a adult at the same time has to be present beside the child.
  • the retractable step system can then be placed anywhere within the cabinet where there is another permanent installation that occupies part of the space inside the cabinet that could be a drainage pipe.
  • a cabinet comprising a retractable step system, such a cabinet has many benefits where some are mentioned above.
  • Fig. 1 a schematic view of a retractable step system according to an embodiment of the invention, in a first position.
  • Fig. 2 a schematic view of a first embodiment of the invention, in a sectional view along A-A.
  • Fig. 3 a schematic view of a second embodiment of the invention, in a sectional view along A-A.
  • Fig. 4 a schematic view of a second embodiment of the invention, in a sectional view along B-B.
  • Fig. 5 a schematic view of a second embodiment of the invention, in a sectional view along C-C.
  • Fig. 6 a schematic view of a third embodiment of the invention, in a sectional view along A-A.
  • Fig. 7 a schematic view of a third embodiment of the invention, in a sectional view along B-B.
  • Fig. 8 a schematic view of a third embodiment of the invention, in a sectional view along C-C.
  • Fig. 9 a schematic view of a fourth embodiment of the invention, in a second position.
  • Fig. 10 a schematic view of a fourth embodiment of the invention, in a sectional view along E-E.
  • Fig. 11 a schematic view of a fourth embodiment of the invention, in a sectional view along D-D.
  • Fig. 12 a schematic view of a step
  • Fig. 13 a schematic view of a step, in a sectional view along F-F
  • Fig. 14 a schematic view of a step, in a sectional view along G-G
  • Fig. 15 a schematic view of a first example of mounting means for the retractable step system.
  • Fig. 16 a schematic view of a second example of mounting means for the retractable step system.
  • FIG. 17 a schematic view of a third example of mounting means for the retractable step system
  • FIG. 18 a schematic view of a fourth example of mounting means for the retractable step system.
  • Fig. 19 a schematic view of a fifth example of mounting means for the retractable step system.
  • Fig. 20 a schematic view of a sixth example of mounting means for the retractable step system.
  • Fig. 21 a schematic view of an example of a fittings for mounting the retractable step system.
  • Fig. 22 a schematic view of a retractable step system mounted in a bathroom vanity unit.
  • Fig. 23 a schematic view of a retractable step system mounted under a bathroom vanity unit.
  • Fig. 24 a schematic view of a retractable step system mounted to the floor under a table.
  • Fig. 25 a schematic view of a retractable step system mounted in a cabinet.
  • Fig. 26 a schematic view of a retractable step system mounted in a bathroom vanity unit
  • Fig. 1 shows a retractable step system 1 with a step 2 and a frame 3 where the step 2 is in the extended position.
  • the step 2 can be retracted into the frame 3 (this is shown in fig. 9) in this embodiment the entire step 2 can be retracted into the frame 3 but an embodiment where the frame only covers part of the step 3 is also possible.
  • the step can have a handle 4, the handle makes it easier to extend and retract the step this is especially the case where the frame 3 covers the entire step 2 when it is retracted.
  • the handle and the front end of the step behind the handled are shaped so there is room for the tip of a foot of an adult person including the tip of a sandal to operate the step. This handle is also shaped for operating the step by hand.
  • the handle is preferable covered with a material which has a high friction level.
  • the frame 3 is provided with four fittings 5 situated near each corner of the retractable step system 1. The fittings 5 can be used when mounting the retractable step system 1.
  • the retractable step system 1 has a mechanism so that it is possible for the user to lock the step. This secures that the step is locked when used so that the step does not slide when a person such as a child is standing on the step.
  • These mechanisms are here proposed in four different examples but it is clear that other embodiments are also possible.
  • a common benefit from the retractable step system 1 according to this invention is that there is no need for the step 2 to get in contact with the ground when locking thus it can be mounted anywhere without the need for modifications.
  • the step can be placed in a high position while the child is young and short, and then according to the child gets taller, the step can be replaced in a lower position that then suits the child.
  • Fig 2 shows a first embodiment of the invention, showing the locking means or locking mechanisms in schematic view along the line A-A of fig 1.
  • the step 2 is in the extended position.
  • the step is attached to the frame via liner guide rails 6.
  • the guiding means includes the sides of the frame 3 and the linear guiderails 6.
  • the first pivotal bearing 7 connects the liner guide rails 6 and the frame via a fitting.
  • the step 2 is attached to the liner guide rails 6 via the second pivotal bearing 8.
  • the liner guide rail 6 has a first part 9, a second part 10 and a third part 11.
  • Such guide rails are known in the art, they are commonly used for drawers and the like. They are made with different kinds of rollers inside to secure that the sliding friction is minimal when they are used.
  • the sliders comprise two parts, or more parts for extra elongation.
  • the guiding rails 6 can pivot about the first pivotal bearing 7 slightly up and down within a limited angle due to the restrictions the frame 3 gives.
  • the step 2 can pivot about the second pivotal bearing 8, this movement is also restricted by the frame, the position of the pivotal bearings are not to scale but a person skilled in the art would have no problem with positioning them to get the desired effect.
  • the step interlocks when the first contact point 14 of the step rests against the lower part of the frame 3 and the second contact point 15 rests against the upper part of the frame 3. This happens when sufficient weight is placed on the step.
  • the spring 12 is placed between liner guide and the frame 3 to carry the step to keep the step free of the frame when weight is not applied to the step, it might be necessary also to have a first limiter 13 that secures that the spring does not expand and press the step against the upper part of the frame.
  • a second spring 16 is placed between the step and the third part of liner guide rail, this to carry up the step at its rear end, a second limiter 17 is placed to secure that the spring does not expand too much, so that the step gets locked when not desired.
  • the embodiment shown in fig. 2 function in the following way, when no weight is applied to the step 2 it can be extended and retracted with out difficulties due to the low sliding friction in the linear guide rails 6.
  • the step 2 and the linear guide rails 6 are pivoted around the first pivotal bearing 7 until the first contact point 14 gets in contact with the frame 3 additionally the step 2 pivot around the second pivotal bearing 8 so that the second contact point 15 rests against the frame. Now the step is only resting against the frame and does thus not stress the linear guide rail 6.
  • the springs get in the original position and the user can retract the step with little effort.
  • Fig. 3, 4 and 5 The second embodiment is shown in Fig. 3, 4 and 5.
  • Fig. 3 there is shown a second embodiment of the invention, here there is shown the locking means or locking mechanisms in schematic view along the line A-A of fig 1.
  • the step 2 is extended and there is still part of it inside the frame 3.
  • the step 2 slides via the linear guide rails 6, these guide rails are known in the art.
  • the step 2 has a first contact point 14 and a second contact point 15 with the same function as in the first embodiment.
  • This embodiment is well suited if the linear guide rails 6 are not strong enough to support the weight of a person.
  • the guide rails 6 come in different qualities, where some are not strong enough to support the weight from the user of the step.
  • the step 2 is fixed to the third part of linear guide rail 1 1.
  • the first spring 12 secures that the step 2 is lifted away from the frame 3, when no weight is applied to the step.
  • a bearing fitting 20 is fixed to the frame 3.
  • the first part of the linear guide rail 9 is attached to this bearing fitting 20 via the third pivotal bearing 19. This bearing is made so that it can displace the guide rail 6 in relation to the frame 3. This is done by making the hole in the bearing fitting 20 so it has an oblong form instead of the normal round, this can be seen on figure 4.
  • the third spring 21 is attached at one end at the frame 3 and the other end to the first part of liner guide rail 9 holding it down. Due to the oblong form of the hole in the bearing fitting 20 the first part of liner guide rail 9 can oscillate up and down and thus the entire guide rail and step.
  • Fig 5 is a cross-sectional view along the C-C line in fig. 1 here can be seen the bearing fitting 20 that is attached to the frame 3 and connected to the linear guide rails 6 via the third pivotal bearing 19 and that third spring 21 that holds the linear guide rails 6 down.
  • the step 2 can easily be extended and retracted because the first spring 12 lifts the step 2 securing that the first contact point 14 does not get in contact with the frame and the third spring 21 keeps the end of the linear guide rails 6 with the third pivotal bearing 19 down securing that the second contact point 15 does not get in contact with the frame 3.
  • the springs secures in other words that the step only locks when weight is applied to it.
  • step 2 When step 2 is extended and weight is applied to the step for example by a person that steps on the step 2, then the first spring 12 gets compressed, and the first contact point 14 gets in contract with the frame 3, further the third spring 21 is extended and the third pivotal bearing 19 is moved upwards and at the same time the linear guide rails 6 and the step 2 is pivoted slightly so that the second contact point 15 gets in contact with the frame 3.
  • fig. 6 there is shown the cross-sectional view of a third embodiment along the A-A line in fig. 1.
  • Fig 7 and fig 8 also shows the third embodiment along the B-B and C-C cross-sectional line of fig 1 respectively. This way of making the locking mechanism is preferred when the linear guide rails 6 are strong enough to support the weight of a person.
  • the third part of linear guide rail 1 1 is attached to the step 2 in a similar way for the second embodiment.
  • the first spring 12 secures that the first contact point 14 does not get in contact with the frame unless weight is applied to the step.
  • the first pivotal bearing 7 has a similar function as the first embodiment that is attached to the bearing fitting 20, which is fixed to the frame 3.
  • the first spring 12 secures that it is easy to extend and retract the step 2 and when weight is applied to the step 2 the first spring 12 is compressed and the first contact point 14 gets in contact with the frame 3 and locks the step 2.
  • the step 2 is supported by the first pivotal bearing 7 via the linear guide rails 6 and the first contact point 14. This applies a considerable amount of stress on to the linear guide rails 6.
  • the step 2 needs to be extended in full length before the locking system can be activated. If the step is only partly extended and weight is applied to the step 2 then the locking mechanism will still be activated. This is especially important when children are using the invention as they rarely secures that the step is fully extended before stepping up.
  • the mechanical parts that are necessary for the invention are partially positioned in cavities that are made in the step with access from the underside of the step. These cavities could also be substituted with a step that is placed on top of the mechanical parts, or the mechanical parts could be placed on the side of the step, this is however not very aesthetically as the user then would be able to see the mechanical parts, and additionally it is easier for dirt to enter the mechanical parts which is undesirable.
  • Fig. 9 shows a fourth embodiment of the invention, it shows a retractable step system 1 in the retracted position the frame is only shown schematically so that it is possible to see the step 2 within the frame. There can be seen fittings 5 that can be used to fix the retractable step system 1 to a mounting structure.
  • the retractable step system 1 has a handle 4 and the step has a first wheel 22 that sticks out through the top of the step and second wheel 23 that is situated on the bottom of the step 2.
  • These wheels together with the wheel 24 secures that the step can be extended and extracted with ease.
  • the mechanical parts of that are necessary for the invention are partially positioned in cavities that are made in the step with access from the underside of the step. These cavities could also be substituted with a step that is placed on top of the mechanical parts this is however not very aesthetically as the user then would be able to see the mechanical parts and additionally it is easier for dirt to enter the mechanical parts which is undesirable.
  • Fig. 10 shows a cross-sectional view of the fourth embodiment along the E-E line in fig. 9.
  • the side of the step 2 can be seen, it has cavities for the mechanical parts.
  • a third wheel 24 is mounted so that it can oscillate. It is connected to the second wheel fitting 28.
  • the second mounting 32 are connected to the second wheel fitting 28 via the fourth pivotal bearing 30, further the fourth spring 26 lifts the third wheel 24 so that the step 2 is lifted and does not touch the frame 3 when the retractable step system 1 is not locked. This can also be seen in fig 11.
  • Fig. 11 shows a cross-sectional view of the fourth embodiment along the D-D line in fig. 9.
  • the frame 3 is not shown in some parts on figure 9 the frame is shown on fig 11.
  • a second wheel 23 connected to the step via wheel fork 33, this has a permanent height that secures that the step 2 does not get in contact with the frame 3 at the position of the wheel.
  • the step has a hole 36 where through a first wheel 22 protrudes.
  • the first wheel 22 is suspended so that it can oscillate.
  • the first wheel 22 is suspended in a similar way as the third wheel 24 but connected to the step.
  • a first mounting 31 is fixed to the step 2 and connected to the first wheel fitting 27 via the third pivotal bearing 29.
  • the first wheel 22 is connected to the first wheel fitting 27 which is supported be the third spring 25 that secures that the first wheel 22 has contact with the frame 3.
  • the fourth embodiment function in the following way, when the retractable step system 1 is in the retracted state the wheels 22, 23, 24 secures that the step does not get in contact with the frame 3 on the top or bottom of the step 2. It is very likely that the sides of the step 2 get in contact with the frame this is of no problem as no force acts to neither attract nor repel the sides of the step to or from the sides of the frame. Thus the sides of the frame 3 have the function of guiding the step 2. Alternatively the wheels could run in grooves within the frame 3. When the step is extended the springs secures that the frame 3 are still not in contact in the top or bottom of the step 2.
  • the step 2 when weight is applied to the step 2 the third spring 25 and the fourth spring 26 is compressed and the top part of the step 3 gets in contact with the frame and than the bottom of the step also gets in contact with the frame, the step 2 will thus have a small inclination and the contact between the frame and the step will increase the coefficient of friction considerably and hereby locking the step 2 in its current position.
  • the wheels in the embodiments are able to rotate, and they could advantageously have a ball bearing to decrease the friction.
  • the wheels can be replaced by rollers.
  • Fig. 12 shows a possible embodiment of the step 2, it could be made from any material but a slip-resistant surface is preferred.
  • There are grooves 34 are made deep enough to be able to lead water away from the step and out through the outlets 35 that are positioned near the outer edge of the step so that the water draining off will go to the floor and not wet the frame 3 or the guide means.
  • a wet step is not desirable as it could be a safety hazard as a wet surface is normally slippery. This is also important if the retractable step system 1 is installed inside a cabinet as it is not desirable to spill water inside it and it is a lot easier to sweep the floor than the inside of a cabinet.
  • Fig 14 is a cross-sectional view of the step along the G-G line here it can be seen that the grooves gets deeper at the outer edge of the step, this helps leading water away from the step.
  • the retractable step system 1 could be made with push-to-open mechanics this is well known to the skilled person. This could be used instead of having a handle, but a grip would normally be necessary to be able to fully extend the step.
  • Fig. 15, 16 and 17 shows a way of mounting the retractable step system 1. This way of mounting is made so that it is easy to mount it inside a cabinet.
  • Each of the four fittings 5 are connected to the mounting arm 37. Inside the cabinet the mounting bar 38 is fixed, and the one can fix the mounting arm 37 to the mounting bar 38 making a secure and stable connection of the retractable step system 1 inside the cabinet.
  • the mounting bar 38 has a carving so the mounting bar fits around a standard hinge for kitchen cabinets when placed near by.
  • the length of the mounting arm 37 could be designed to have any desired length as can be seen on the figures 15, 16 and 17. This depends on the position that is desired for the retractable step system 1 or could also depend on permanent installations in the cabinet, for example in fig 22 the step is placed specifically to make room for the drainage in the bathroom vanity.
  • Fig. 18 shows a wall mounting arm 39 that can be used to mount the retractable step system 1 onto a vertical surface as example a wall, a machine part, and a shelving system.
  • Fig. 19 shows a set of mounting arms 40 that can be used to mount the retractable step system 1 on to a horizontal surface as the floor, ceiling, shelves, machine parts.
  • Fig. 20 shows mounting fittings 41 that can be used to mount the retractable step system 1 to any desired surface.
  • the fittings 5 are fixed to the mounting fittings 41 which can then be fixed to any mounting surface.
  • Fig. 21 shows a simpler version than the mounting bar 38, as these can be used to mount each mounting arm 37 on the mounting surface.
  • These mounting are also special by having more holes for fastening with traditional screws for use in such cabinets. The number of screws is increased for the possibility of keeping the surfaces to which the retractable step system 1 is mounted to at their original distance, this to prevent the cabinet to be damaged by the force by using the step.
  • Fig. 22 show retractable step system 1 installed inside a bathroom vanity 42 using the mounting system shown in fig. 15.
  • Fig. 23 show retractable step system 1 installed under a bathroom vanity 42 using the mounting system shown in fig. 18.
  • Fig. 24 show retractable step system 1 installed under a table using the mounting system shown in fig. 19.
  • Fig. 25 show retractable step system 1 installed inside a cabinet, here a shelf 43 is positioned on top of the retractable step system 1. This hides the system so that it only occupies a small part of the cabinet. This installation in especially well suited for the push-to-open mechanism as the retractable step system 1 could then be hidden when not in use.
  • Fig. 26 show a retractable step system 1 installed inside a cabinet, the door is shorter and thus does not cover retractable step system 1 making it possible to use the step system with out opening the door. Further the retractable step system 1 is equipped with a push-to-open system.
  • Screws, bolts, nuts, lock, and washers or a combination of these are used for fitting or fixing some of the parts mentioned in this invention.

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Abstract

L'invention concerne un système de marchepied rétractable comprenant un moyen de montage fixe sur lequel une marche est montée coulissante. La marche est couplée de manière fonctionnelle au moyen de montage fixe par l'intermédiaire de moyens de guidage, de manière qu'elle se déplace entre une première et une seconde position. Le moyen de guidage comprend au moins un rail de guidage linéaire à moyens de verrouillage commandés par l'utilisateur, activés lorsqu'une force supérieure à une force prédéterminée est appliquée sur la marche. Un tel système de marchepied rétractable peut être placé sur n'importe quelle surface de montage appropriée, par exemple dans des placards, sous un placard ou une table, sur des murs ou des planchers.
PCT/DK2010/050087 2009-04-20 2010-04-20 Système de marchepied rétractable WO2010121622A1 (fr)

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DKPA200900509 2009-04-20

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WO2010121622A1 true WO2010121622A1 (fr) 2010-10-28

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN103844699A (zh) * 2014-03-27 2014-06-11 苏州谊恒印务有限公司 一种新型家用椅子结构
US10316584B1 (en) 2018-03-01 2019-06-11 Sunjoy Industries Group Ltd. Bathroom vanity with retractable step
AT521278B1 (de) * 2018-09-11 2019-12-15 Blum Gmbh Julius Personenaufstandsplattform
US11060354B2 (en) 2016-01-22 2021-07-13 Developpements Lafond Et Reid Inc. Hinged step for small person
KR20220076206A (ko) * 2020-11-30 2022-06-08 제주한라대학교산학협력단 다리 부종 방지 받침대

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US1688834A (en) * 1928-10-23 Locker
US3195966A (en) * 1963-05-13 1965-07-20 Doherty Henry Step-up file cabinets
US3756678A (en) * 1971-08-24 1973-09-04 G Klopfenstein Retractable step
US5014818A (en) * 1990-08-17 1991-05-14 Kenneth Schulz Children's vanity step-stool
FR2908021A1 (fr) * 2006-11-07 2008-05-09 Jean Michel Simonnet Marche-tiroir facilitant l'acces a un plan en hauteur

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Publication number Priority date Publication date Assignee Title
US1688834A (en) * 1928-10-23 Locker
US3195966A (en) * 1963-05-13 1965-07-20 Doherty Henry Step-up file cabinets
US3756678A (en) * 1971-08-24 1973-09-04 G Klopfenstein Retractable step
US5014818A (en) * 1990-08-17 1991-05-14 Kenneth Schulz Children's vanity step-stool
FR2908021A1 (fr) * 2006-11-07 2008-05-09 Jean Michel Simonnet Marche-tiroir facilitant l'acces a un plan en hauteur

Cited By (11)

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