Movement device for seat, for example for piece of seating furniture

Abstract

The invention relates to a movement device (3) for a seat (2), for example for a furniture seat, comprising: a first higher plate-like element (4) which, during use, extends substantially horizontally in the seat; a second lower plate-like element (5) extending substantially horizontally in the seat, below the higher plate-like element, and at a distance from the higher plate-like element during use; a hinge device (6) located between the higher plate-like element and the lower plate-like element and having a pivot point such that the higher plate-like element can pivot about the pivot point relative to the lower plate-like element; and a damping device (7) designed to suppress the hinge function of the hinge device.

Description

Technical Field

[0001] This invention relates to a motion device for a chair, such as a chair for a piece of furniture, specifically a chair motion device capable of moving in response to the movement of the user, for example, in response to movement in the direction of the user's pelvis. For this purpose, the chair has a certain degree of instability, wherein the user must adjust to correct this instability, thereby achieving a dynamic sitting posture; in other words, it is a dynamic motion device. Background Technology

[0002] Such seating furniture is known, wherein the seat has a base plate on which a layer of open-cell foam material is laid. The base plate and foam material are covered with a cover. To improve the movement of the seat, the seat can be movably fixed to the frame of the seating furniture, or the frame can be equipped with a gas spring that can provide damping and movement functions to the seating furniture according to the user's weight.

[0003] It is well known that prolonged sitting (such as sitting in an office chair) can lead to back pain and other discomfort. To avoid this, alternative seating furniture with lower stability has been designed, forcing users to adjust their posture to cope with the instability. For example, there is a type of seating furniture resembling a bouncy ball, which is an inflatable rubber ball with a cross-section adapted to the height of the office chair—that is, slightly larger. When a user sits on the ball, it presses slightly downwards. When the user moves relative to the ball or the imaginary vertical axis of their back, the air inside the ball is pushed in a different direction, reducing the pressure on the ball. This creates a feeling of instability, which the user will instinctively try to correct. The disadvantage of this type of chair is its large size; if the user does not correct their posture in time, they may fall off the ball and onto the ground. Summary of the Invention

[0004] This invention aims to provide a seat movement device, such as a seat for seating furniture, preferably for common seating furniture (e.g., an office chair), which has characteristics substantially similar to a "bouncy chair". Therefore, this invention provides a seat movement device, such as a seat for seating furniture, comprising: - The first, taller plate-like element extends roughly horizontally within the seat during use. - The second, lower plate-like element, during use, extends roughly horizontally within the seat, positioned below and at a certain distance from the higher plate-like element. - A hinge mechanism, located between a higher plate element and a lower plate element, having a pivot point such that the higher plate element rotates relative to the lower plate element about this pivot point, and - A damping device designed to suppress the hinge function of the hinge mechanism.

[0005] In this invention, the term "plate-like element" should be interpreted broadly to include flat or slightly deviated-from-flat elements. Plate-like elements that do not cover the entire surface but have cutouts also fall into this category. The shape of a taller plate-like element may correspond to that of a support plate-like element in a conventional chair, on which a layer of, for example, open-cell foam and / or a cover may be mounted, or it may not be mounted. A lower plate-like element may correspond to the seat support of a conventional chair, through which the seat can be secured to a frame. For a conventional chair, this may involve the same support structure, while in this invention, it refers to two separate plate-like elements spaced apart from each other. The motion device according to this invention can be integrated into the seat of a chair furniture piece, but it can also be integrated into a "loose" seat, wherein the loose seat is movable and can be placed on a generally horizontal, sufficiently supportive subfloor. Of course, such a "loose" seat can also be mounted on an existing seat in (conventional) chair furniture.

[0006] In use, the user sits on the seat. Similar to conventional seats, the higher plate element can be covered by a motion layer (e.g., open-cell foam) and / or a cover layer (e.g., a seat cushion). Furthermore, as with conventional seats, a support plate element can be positioned above the higher plate element. The hinge mechanism has a pivot point around which the higher and lower plate elements can rotate relative to each other. The hinge mechanism can be designed as a spherical joint or as a single unit composed of multiple hinges that collectively function as a spherical joint. Importantly, there is virtually no limitation on the range of rotation of the plate elements relative to each other about the hinge mechanism. In this respect, the pivot point (whether physical or imaginary) is located in the central region of the plate element.

[0007] This article primarily discusses a variant structure where the lower plate element is fixed relative to the seat, while the upper plate element moves about a pivot point. The working principle of this variant structure with a reverse mechanical structure can be derived from this. When the user shifts their center of gravity forward, backward, or sideways, the upper plate element pivots in the corresponding direction about the hinge mechanism, creating a feeling of instability for the user. The user then shifts their center of gravity back to find a stable position. This achieves the dynamic function of the seating furniture targeted by this invention. If the user reacts too slowly or not at all to the instability of the seat, the higher plate element will tend to collide with the lower plate element. However, a damping device prevents this from happening. Unlike bouncy ball-like seating furniture, this type of seating furniture prevents the user from falling due to the limited instability of the seating furniture (relative to a bouncy ball).

[0008] Therefore, this motion device creates a seat with a certain degree of instability, in which the user must correct the instability of the seat to achieve a dynamic sitting posture.

[0009] It should also be noted that people who are inherently "unstable" (such as overweight individuals) may have difficulty getting up from a bouncy chair and may even fall. However, practical experience has shown that getting up from furniture or chairs equipped with this exercise device is perfectly feasible.

[0010] As mentioned earlier, the hinge mechanism here can be used as a ball joint.

[0011] Of course, hinge mechanisms can also include ball joints. These ball joints offer relatively high degrees of freedom of movement and require virtually no maintenance. Furthermore, they can be installed in various ways.

[0012] The hinge mechanism is preferably configured such that during pivoting, the first higher plate element and the second lower plate element do not rotate relative to each other about the vertical axis to prevent excessive instability of movement.

[0013] The hinge mechanism is preferably configured such that, during pivoting, the horizontal center point of the first higher plate element and the horizontal center point of the second lower plate element maintain the same vertical distance from each other.

[0014] Hinges can also consist of multiple hinges (preferably two hinge axes arranged at an angle to each other), which mimic the function of a ball joint. Using such hinge assemblies can provide manufacturers of furniture, such as seating, with a high degree of design freedom.

[0015] The hinge axes can extend at an angle of 70-110 degrees to each other, preferably 85-95 degrees, and more preferably 90 degrees, thereby providing optimal freedom of movement and dynamics.

[0016] The hinge connected to the first higher plate element is preferably configured to extend between the ischial bones of a person sitting on the first higher plate element in order to distribute the pressure of sitting posture.

[0017] The hinge mechanism may include a third intermediate plate-like element that extends generally horizontally within the seat during use and is located between and at a distance from the lower and higher plate-like elements, wherein one hinge axis is mounted between the higher and intermediate plate-like elements and another hinge axis is mounted between the lower and intermediate plate-like elements.

[0018] To form a hinge axis, at least one hinge preferably includes a first hinge component and a second hinge component extending along the hinge axis direction, wherein the first hinge component is hinged around the second hinge component.

[0019] The first hinge component may include a concave element, and the second hinge component may include a convex element, wherein the concave element engages with the convex element such that the first hinge component can be hinged around the second hinge component.

[0020] The first hinge component may include an elongated element with rounded edges, and the second hinge component may also include an elongated element with rounded edges, wherein the rounded edges of the elongated elements cooperate with each other so that the rounded edges can roll relative to each other to provide a hinge function.

[0021] Slender elements can be interconnected by bands that are transverse to the hinge axis and wrap around the slender elements.

[0022] The damping device may include one or more springs, which are preferably interconnected by two plate-like elements. Using such springs allows for convenient adjustment of the damping level: more or fewer springs can be installed relatively simply, or springs with relatively high spring constants can be installed on one side and springs with relatively low spring constants on the other. Those skilled in the art will understand that various variations are possible.

[0023] For example, a damping device may include three or more springs that are equidistantly distributed around a pivot point to provide uniform, intuitive, and predictable damping.

[0024] The damping device may also include an elastic material disposed between the two plate-like elements, for example, to replace or in conjunction with the aforementioned spring.

[0025] Elastic materials may include open-cell foams, preferably memory foams.

[0026] The damping device is preferably designed to prevent the higher plate element from contacting the lower plate element during pivoting (i.e., during pivoting of the higher plate element relative to the lower plate element). The damping device also slows down the pivoting speed. Without a damping device, the seat may be too unstable, making it difficult to sit for extended periods.

[0027] Another aspect of the invention relates to a seat, such as a seat for seating furniture, which includes the aforementioned motion device.

[0028] The seat preferably includes a cover that surrounds the motion mechanism to protect it and maintain its compactness. Furthermore, this cover can directly or indirectly assist the damping mechanism in functioning. The cover is preferably made of fabric or a similar breathable material to allow air to escape from the seat when a person sits down. Viewed from the side, a porous material is particularly preferred for the lower half of the cover to allow air expelled when the user sits down to escape smoothly. Since the cover simultaneously provides strength and secures the motion mechanism, it is preferably made of a non-elastic fabric. When the seat sinks to a certain extent when seated, sufficient space is released vertically on the sides of the fabric to allow for pivoting movements.

[0029] The seat may include an anti-slip layer installed below the second, lower plate-like element to prevent the seat from sliding when it is loosely placed on the underlying surface.

[0030] Seating furniture can include chairs, such as office chairs. Attached Figure Description

[0031] The present invention will now be described in more detail with reference to the exemplary embodiments shown in the accompanying drawings. In the drawings: Figure 1 A schematic cross-section of an exemplary embodiment of a seat with a motion device according to the present invention is shown in an unpivoted state; Figure 2 It shows that according to Figure 1 An exemplary embodiment of the seat, wherein the motion device is in a pivoting state; Figure 3 A schematic side view of an exemplary embodiment of a seat with a motion device according to the present invention is shown, wherein the motion device includes a damping device with a spring; Figure 4 A schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device includes a hinge device having a ball joint; Figure 5 A schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device includes a hinge device having two hinge axes mounted at an angle. Figure 6 A schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device includes a hinge device having two hinge axes mounted at an angle. Figure 7 A schematic perspective view of an exemplary embodiment of a hinge device according to the present invention is shown, wherein the hinge device has two hinge axes mounted at an angle, and the elongated elements of the hinge axes are interconnected by a belt. Figure 8A schematic perspective view of an exemplary embodiment of a hinge according to the present invention is shown, wherein two hinge components are hinged to each other; Figure 9 A schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device has two hinges mounted at an angle, each hinge having two hinge components that are hinged to each other, one of which is provided with an end cap; Figure 10 A schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device includes a hinge device having two hinge axes mounted at an angle. Figure 11 A schematic perspective view of an exemplary embodiment of a seat according to the invention is shown, wherein the seat is (at least partially) saddle-shaped; Figure 12 An exploded schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device includes a first variant of a hinge device having a double ball hinge. Figure 13 An exploded schematic perspective view of an exemplary embodiment of the motion device according to the present invention is shown, wherein the motion device includes a second variant of a hinge device having a double ball hinge; Figure 14 A schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device includes a third variation of a hinge device having a double ball hinge; Figure 15 A schematic perspective view of an exemplary embodiment of a motion device according to the present invention is shown, wherein the motion device includes a fourth variation of a hinge device having a double ball hinge; Figure 16 A schematic perspective view shows an exemplary embodiment of seating furniture in the form of a height-adjustable chair, wherein the seating furniture is provided with a seat including a motion device according to the present invention; and Figure 17 A schematic perspective view shows an exemplary embodiment of a seating furniture in the form of a traditional four-legged chair, wherein the seating furniture is provided with a seat including a motion device according to the present invention. Detailed Implementation

[0032] Figure 1-17 We will discuss this together. As mentioned above, Figure 1 A schematic cross-section of an exemplary embodiment of a seat 2 having a motion device 3 according to the present invention in an unpivoted state. Figure 1 More specifically, the motion device 3 of the seat 2 is shown, for example, for use in the seat furniture 1 (e.g., as shown in the image). Figure 12 and Figure 13The chair furniture 1 shown has a seat 2. A movement device 3 includes a first, higher plate-like element 4 that extends generally horizontally within the seat 2 during use. The movement device 3 also includes a second, lower plate-like element 5 that extends generally horizontally within the seat 2 during use, located below and at a distance from the higher plate-like element 4. The movement device 3 also includes a hinge device 6 located between the higher plate-like element 4 and the lower plate-like element 5, and having a pivot point about which the higher plate-like element 4 can pivot relative to the lower plate-like element 5. Normally, the lower plate-like element 5 does not pivot about the seat 2; that is, the lower plate-like element 5 remains stationary within the seat 2. Viewed from above, the higher plate-like element 4 and / or the lower plate-like element 5 are preferably circular. The diameter of this circle may be, for example, 20-50 cm (e.g., 25-40 cm). The thickness of the higher plate-like element 4 and / or the lower plate-like element 5 is, for example, 5-15 mm (e.g., 5-10 mm). In the non-pivoting state, the vertical distance between the higher plate element 4 and the lower plate element 5 is, for example, 5-20 cm. For example, the higher plate element 4 and / or the lower plate element 5 can be made of wood, but other materials can also be used. The seat 2 may also include a cushion 19 located on the higher plate element 4 to provide a comfortable sitting posture for the user. Furthermore, the seat 2 may include a cover (not shown) surrounding the motion device 3. The seat 2 may also include an anti-slip layer (not shown) installed below the second lower plate element 5. As shown above, the seat 2 may be saddle-shaped, with the "tip" of the saddle adjustable forward or backward during use. The shape of the motion device 3 must also be adjusted accordingly, which will be apparent to those skilled in the art.

[0033] The motion device 3 also includes a damping device 7, which is designed to suppress the hinge function of the hinge device 6. The damping device 7 is preferably disposed between the higher plate element 4 and the lower plate element 5, and more preferably disposed between the (horizontal) outer periphery of the higher plate element 4 and / or the lower plate element 5, where the distance between the higher plate element 4 and the lower plate element 5 is minimized during pivoting.

[0034] As previously mentioned, the hinge device 6 is preferably configured such that during pivoting, the first higher plate element 4 and the second lower plate element 5 do not rotate relative to each other about the vertical axis, in order to prevent excessive movement of the motion device.

[0035] The hinge device 6 is preferably configured such that, during pivoting, the horizontal center point of the first higher plate element 4 and the horizontal center point of the second lower plate element 5 maintain the same vertical distance from each other.

[0036] In fact, the hinge device 6 according to the invention functions as a ball joint, wherein the higher plate element 4 can pivot to the lower plate element 5 in any possible manner. Figure 1 As shown, the hinge device 6 is composed of an assembly 9 consisting of multiple hinges 10, which simulates the function of a ball joint. The assembly 9 of the hinges 10 includes two hinge axes 11 arranged at an angle to each other. The angle between the hinge axes 11 is 70-110 degrees, preferably 85-95 degrees, and more preferably 90 degrees. The hinges 10 connected to the first higher plate-like element 4 are preferably configured to extend between the ischial bones of a person sitting on the first higher plate-like element 4 during use to distribute the pressure of sitting posture. As shown, the hinge axes 11 may include a pair of parallel extending elongated elements 20, 21 (e.g., slats or rods) with a semi-circular cross-section. The circular edges of the elongated elements 20, 21 are opposite each other and “roll” relative to each other during pivoting. In this case, for example, the radius of the semicircle may be 3-20 mm (e.g., 3-10 mm). The elongated elements 20, 21 are preferably connected to each other, thus preventing the elongated elements 20, 21 from rolling off each other. This can be achieved in several ways, such as by weaving the slender elements 20 and 21 together with rope or thread. Here, shapes such as double twisted thread or figure-eight (viewed in cross-section) can be used. Figure 5 and Figure 6 Such elongated elements are also shown as examples (although not explicitly labeled with figure marks). Furthermore, Figure 5 A variation is also shown, in which an elongated element with a rectangular cross-section rolls over another elongated element with a semi-circular cross-section. Such woven or braided structures are also practically applicable. Figure 7 The exemplary embodiment shown.

[0037] like Figure 1As shown, the hinge device 6 includes an intermediate plate-like element 12 that extends generally horizontally within the seat 2 during use, positioned between and at a distance from the lower plate-like element 5 and the higher plate-like element 4. The intermediate plate-like element 12 may also be circular. The diameter of the intermediate plate-like element 12 is preferably smaller than the diameter of the higher plate-like element 4 and / or the lower plate-like element 5, for example, 1 / 4 to 3 / 4 (e.g., 1 / 3 to 2 / 3) of the diameter of the higher plate-like element 4 and / or the lower plate-like element 5. The intermediate plate-like element 12 is preferably circular, and its diameter is preferably no greater than the length of the hinge 10. If the diameter is greater than the length of the hinge 10, the intermediate plate-like element 12 may impede pivoting movement, in which case the higher plate-like element 4 may collide with the intermediate plate-like element 12, or the intermediate plate-like element 12 may collide with the lower plate-like element 5. Here, one shaft 13 of the hinge shaft 11 is mounted between the higher plate element 4 and the intermediate plate element 12, and the other shaft 14 of the hinge shaft 11 is mounted between the lower plate element 5 and the intermediate plate element 12. The damping device 7 may include an elastic material 16 disposed between the two plate elements 4 and 5. The elastic material 16 may include open-cell foam (preferably memory foam).

[0038] Figure 2 It shows Figure 1 An exemplary embodiment of the seat 2 shown is provided, wherein the motion device 3 is in a pivoting state. Figure 2 As shown, the damping device 7 is preferably designed to prevent the higher plate element 4 from contacting the lower plate element 5 during pivoting. Figure 2 As shown, the damping device 7 is mounted on the outer periphery of the higher plate element 4 and the lower plate element 5, wherein, during pivoting, the damping device 7 is pressed to suppress hinge movement.

[0039] Figure 3 A schematic side view of an exemplary embodiment of a seat 2 with a motion device 3 according to the present invention is shown, wherein the motion device 3 includes a damping device 7 with springs 15. The springs 15 are preferably interconnected by two plate elements 4, 5. The damping device 7 may include three, four, five, six or more springs 15. The springs 15 may be distributed at regular intervals around a pivot point. Furthermore, the springs 15 are preferably mounted at or near the outer periphery of the higher plate element 4 and the lower plate element 5.

[0040] Figure 4A schematic perspective view of an exemplary embodiment of the motion device 3 according to the invention is shown, wherein the motion device 3 includes a hinge device 6 having a ball joint 8. A higher plate element 4 is provided with a spherical ball resting on a cone on a lower plate element 5, the cone having a concave apex. In this way, the higher plate element 4 and the lower plate element 5 can pivot relative to each other in any predictable manner.

[0041] Figure 5 A schematic perspective view of an exemplary embodiment of the motion device 3 according to the present invention is shown, wherein the motion device 3 includes a hinge device 6 having two hinge axes 11, 13, and 14 mounted at an angle. As previously described, Figure 5 A variation is shown in which one elongated element has a rectangular cross-section and rolls onto another elongated element with a semi-circular cross-section. Furthermore, these elongated elements can be interconnected by ropes or lines, and those skilled in the art will understand that such interconnection is necessary to ensure that the desired rolling or pivoting motion is still possible.

[0042] Figure 6 A schematic perspective view of an exemplary embodiment of the motion device 3 according to the present invention is shown, wherein the motion device 3 includes a hinge device 6 having two hinge axes 11, 13, and 14 mounted at an angle. Although for clarity, Figure 6 The damping device is not shown in the image. Figure 4 , Figure 5 and Figure 7 (Not shown in the text), but this exemplary embodiment is similar to Figure 1 and Figure 2 The exemplary embodiments shown are highly similar. Furthermore, hinge axes 11, 13, and 14 are clearly visible, each with a pair of elongated "semi-circular" elements.

[0043] Figure 7 A schematic perspective view of an exemplary embodiment of the hinge device 6 according to the present invention is shown, wherein the hinge device 6 has two hinge shafts 11 mounted at an angle, and the elongated elements 20, 21 of the hinge shafts are interconnected by straps 22, 23, 24. The elongated elements 20, 21 can be made in the shape described above, for example having circular sides that are opposite each other and can roll relative to each other, thereby providing a hinge function. The width of the inner strap 23 can be 2-4 cm (e.g., 3 cm). The width of the outer strap 24 can be 1-2 cm (e.g., 1.5 cm). The straps 22, 23, 24 must be tightened before fixing.

[0044] Figure 8A schematic perspective view of an exemplary embodiment of the hinge 10 according to the present invention is shown, wherein two hinge components 25, 26 are hinged to each other to form a hinge axis 11, the first hinge component 25 and the second hinge component 26 extending along the direction of the hinge axis 11, wherein the first hinge component 25 is hinged about the second hinge component 26. The first hinge component 25 includes a concave element, and the second hinge portion 26 includes a convex cylindrical element, wherein the concave element engages with the convex element such that the first hinge component 25 is hinged about the second hinge component 26.

[0045] Figure 9 A schematic perspective view of an exemplary embodiment of the motion device 3 according to the present invention is shown, wherein the motion device 3 has two hinges 10 mounted at an angle, each hinge 10 having two hinge parts 25, 26 hinged to each other, one of the hinge parts 26 having an end cap 32. In fact, this exemplary embodiment utilizes... Figure 8 The hinge 10 shown in the figure has a first concave hinge component 25 and a second convex hinge component 26 connected to each other to form the hinge axis 11. Furthermore, as shown, hinge component 25 can be integrally formed with the higher plate element 4 and the lower plate element 5. Hinge component 26 can also be integrally formed with the intermediate plate element 12. Here, hinge components 25 and 26 can be snap-fitted together or slidably inserted into each other. In the latter case, as shown, hinge component 26 can be provided with a removable end cap or end element 32 to allow for sliding insertion. For example, the end cap 32 can be secured with screws. If the hinge components 25 and 26 are chosen to snap-fit ​​together, the end cap 32 can be integrally formed with the intermediate plate element 12. For a one-piece molding process, hinge components 25 and 26 and plate elements 4, 5, and 12 can be integrally cast, for example using polyurethane or similar plastic materials. If a snap-fit ​​connection is used, as those skilled in the art will understand, the (plastic) material must have sufficient flexibility.

[0046] Figure 10 A schematic perspective view of an exemplary embodiment of a motion device 3 according to the present invention is shown, wherein the motion device 3 includes a hinge device 6 having two hinge axes 11, 13, and 14 mounted at an angle. In this exemplary embodiment, the hinge axes 11, 13, and 14 all include rigid hinge elements, similar to the rigid hinge elements present in door or window hinges. These rigid hinge elements may, for example, be made of metal.

[0047] Figure 11A schematic perspective view of an exemplary embodiment of a seat 2 according to the invention is shown, wherein the seat (at least partially) is saddle-shaped 27, as previously described. The seat 2, 27 may consist of a first bottom layer 28, a second intermediate layer 29, and a third top layer 30. Here, the first layer 28 and the second layer 29 may actually form part of the damping device 7. The third layer 30 forms the seat cushion 19. For clarity, the motion device 3 is not shown in the figure. A cutout 31 for accommodating the hinge 10 is shown in the figure. Here, when viewed from above, the top layer 30 may have a saddle-shaped tip 33 that is sharper than the intermediate layer 29 and / or the bottom layer 28. Here, the taper of the saddle-shaped tip 33 may gradually increase between layers 28, 29, and 30 when viewed from bottom to top. Layers 28, 29, and 30 may be made of, for example, foam rubber, and are preferably at least about 1-3 cm (horizontally) wider at their outer edges than the plate elements 4, 5, and 12.

[0048] Figure 12 An exploded schematic perspective view of an exemplary embodiment of a motion device 3 according to the present invention is shown, wherein the motion device 3 includes a first variant of a hinge device 6 having a double ball hinge 34. The hinge device 6 is provided with two angled hinge shafts 11, 13, and 14. In this exemplary embodiment, the hinge shafts 11, 13, and 14 are respectively connected to a higher spherical hinge element 36 fixed to a higher plate-like element 4 and a lower spherical hinge element 37 fixed to a lower plate-like element 5. A hollow hinge element 35 (e.g., a cup-shaped hinge element as shown) is mounted between the higher spherical hinge element 36 and the lower spherical hinge element 37. The top and bottom ends of the hollow hinge element 35 are respectively provided with cutouts for receiving the hinge shafts 11, 13, and 14.

[0049] Figure 13 An exploded schematic perspective view of an exemplary embodiment of the motion device 3 according to the present invention is shown, wherein the motion device 3 includes a second variant of the hinge device 6 having a double ball hinge 34. In the second variant, the ball hinge elements 36, 37 and the hollow hinge element 35 are actually “interchangeable” with respect to the first variant, such as… Figure 12 As shown. Here, the hollow hinge element 35 is "divided" into a higher hinge element 38 and a lower hinge element 39. In contrast, the spherical hinge elements 36 and 37 are interconnected.

[0050] Figure 14 A schematic perspective view of an exemplary embodiment of the motion device 3 according to the present invention is shown, wherein the motion device 3 includes a third variation of the hinge device 6 having a double ball hinge 34. This exemplary embodiment is essentially... Figure 12 The first variant shown and Figure 13The second variant is a hybrid form. The higher spherical hinge element 36 is now connected to the higher plate element 4, while the lower hollow hinge element 39 is fixed to the lower plate element 5. The higher hollow hinge element 38 is now also connected to the lower spherical hinge element 37.

[0051] Figure 15 A schematic perspective view of an exemplary embodiment of the motion device 3 according to the invention is shown, wherein the motion device 3 includes a fourth variation of a hinge device having a double ball hinge 34. A higher hollow hinge element 38 is fixed to a higher plate element 4. A lower hollow hinge element 39 is fixed to a lower plate element 5. Hinge axes 11, 13, and 14 can be fixed to a central connecting portion 40 such that the higher hollow hinge element 38 and the lower hollow hinge element 39 can pivot relative to each other or to the inside of the hollow hinge elements 38 and 39.

[0052] Figure 16 A schematic perspective view is shown of an exemplary embodiment of a seating furniture 1 in the form of a height-adjustable chair or stool 17, wherein the seating furniture 1 is provided with a seat 2 including a motion device 3 according to the present invention. Figure 12 As shown, chair 17 may include office chair 18.

[0053] Figure 17 A schematic perspective view of an exemplary embodiment of a seating furniture 1 in the form of a conventional four-legged chair 17 is shown, wherein the seating furniture 1 is provided with a seat 2 including a motion device 3 according to the present invention.

[0054] exist Figure 12 and Figure 13 In the exemplary embodiment shown, the motion device 3 is integrated into the seat 2 of the seating furniture 1.

[0055] When the seat 2 is loosely placed on the seating furniture 1, the seating furniture 1 preferably has upright edges or similar measures to prevent the seat 2 from slipping off the seating furniture 1 or no longer being properly positioned relative to the seating furniture 1.

[0056] Seating furniture 1 may also include, for example, car seats, VR devices, and sofas (“multi-person seating”). It is also conceivable for use in balancing furniture (particularly “seat alternatives,” such as standing or kneeling seats, or as alternatives to so-called “Indo balance boards”). Its use in simulated seating is also conceivable, where the motion device 3 can not only pivot in response to the occupant’s movements but also act in the opposite direction to the occupant’s pivoting (to “simulate” movement) via mechanical / electrical manipulation, such as a “pilot’s seat,” etc.

[0057] Clearly, the above description is intended to illustrate the operation of the preferred embodiments of the present invention, and not to limit the scope of protection of the present invention. Based on the above explanation, many variations falling within the concept and scope of the present invention (as described in the following claims) will be obvious to those skilled in the art.

[0058] List of reference numerals 1. Seating furniture 2. Seats 3. Dynamic motion device 4. The first tallest plate-shaped element 5. The second lowest plate-shaped element 6. Hinge mechanism 7. Damping device 8. Ball joint 9. Hinge assembly 10. (Hinge assembly) 11. Hinge pin 12. Third intermediate plate-shaped element 13. A hinge pin 14. Another hinge axis 15. Spring 16. Elastic materials 17. Chair 18. Office chair 19. Seat Cushion 20. Tall, slender components 21. Lower, slender elements 22. With 23. Inner band 24. Lateral zone 25. First hinge component 26. Second hinge component 27. Saddle-shaped seat 28. First / Bottom Layer 29. Second / Intermediate Layer 30. Third / Top Level 31. Hinge cut 32. Wearing a hat 33. Saddle-shaped tip 34. Double ball hinge 35. Hollow hinge element 36. Higher spherical hinge elements 37. Lower spherical hinge element 38. Higher hollow hinge elements 39. Lower hollow hinge element 40. The connection between spherical hinge elements.

Claims

1. A motion device (3) for a seat (2), such as a seat for seating furniture (1), comprising: -The first, taller plate-like element (4), during use, extends approximately horizontally within the seat. - The second, lower plate-like element (5), during use, extends approximately horizontally within the seat, positioned below and at a certain distance from the higher plate-like element. - A hinge device (6) located between the higher plate element and the lower plate element and having a pivot point, such that the higher plate element can pivot relative to the lower plate element about the pivot point, and - Damping device (7), which is designed to suppress the hinge function of the hinge device.

2. The motion device (3) according to claim 1, wherein, The hinge device (6) is used as a ball joint.

3. The motion device (3) according to claim 2, wherein, The hinge device (6) includes a ball joint (8).

4. The motion device (3) according to any one of the preceding claims, wherein, The hinge device (6) is configured to prevent the first higher plate element (4) and the second lower plate element (5) from rotating about a vertical axis during pivoting.

5. The motion device (3) according to any one of the preceding claims, wherein, The hinge device (6) is configured such that during pivoting, the horizontal center point of the first higher plate element (4) and the horizontal center point of the second lower plate element (5) maintain the same vertical distance from each other.

6. The motion device (3) according to claim 2, 4 or 5, wherein, The hinge device (6) is formed by the components (9) of the hinge (10), which simulate the function of a ball joint.

7. The motion device (3) according to claim 6, wherein, The component (9) of the hinge (10) includes two hinge axes (11) arranged at an angle to each other.

8. The motion device (3) according to claim 7, wherein, The angle between the hinge shafts (11) is 70-110 degrees, preferably 85-95 degrees, and more preferably 90 degrees.

9. The motion device (3) according to claim 6, 7 or 8, wherein, The hinge (10) connected to the first higher plate element (4) is configured to extend between the ischial bones of a person sitting on the first higher plate element (4) when in use.

10. The motion device (3) according to claim 7, 8 or 9, wherein, The hinge device (6) includes a third intermediate plate-shaped element (12) which, during use, extends approximately horizontally within the seat (2), located between and at a certain distance from the lower plate-shaped element (5) and the higher plate-shaped element (4), wherein one of the hinge shafts (13) is installed between the higher plate-shaped element and the intermediate plate-shaped element, and the other hinge shaft (14) is installed between the lower plate-shaped element and the intermediate plate-shaped element.

11. The motion device (3) according to any one of claims 7-10, wherein, In order to form a hinge axis (11), at least one hinge (10) includes a first hinge component (20, 25) and a second hinge component (21, 26) extending along the direction of the hinge axis (11), wherein the first hinge component (25) is capable of hinged around the second hinge component (26).

12. The motion device (3) according to claim 11, wherein, The first hinge component (25) includes a concave element and the second hinge component (26) includes a convex element, wherein the concave element engages with the convex element such that the first hinge component (25) can be hinged around the second hinge component (26).

13. The motion device (3) according to claim 11, wherein, The first hinge component (20) includes an elongated element (20) with rounded edges, and the second hinge component (21) includes an elongated element (21) with rounded edges, wherein the rounded edges of the elongated elements (20, 21) cooperate with each other so that the rounded edges can roll relative to each other to provide a hinge function.

14. The motion device (13) according to claim 13, wherein, The elongated elements (20, 21) are interconnected by bands (22, 23, 24) transverse to the hinge axis (11), the bands (22, 23, 24) surrounding the elongated elements (20, 21).

15. The motion device (3) according to one or more of the preceding claims, wherein, The damping device (7) includes one or more springs (15), which are preferably interconnected by two of the plate elements (4, 5).

16. The motion device (3) according to claim 15, wherein, The damping device (7) includes three or more springs (15) arranged at regular intervals around the pivot point.

17. The motion device (3) according to one or more of the preceding claims, wherein, The damping device (7) includes an elastic material (16) disposed between the two plate-shaped elements (4, 5).

18. The motion device (3) according to claim 17, wherein, The elastic material (16) includes open-cell foam, preferably memory foam.

19. The motion device (3) according to one or more of the preceding claims, wherein, The damping device (7) is designed to prevent the higher plate element (4) from contacting the lower plate element (5) during pivoting.

20. A seat (2), such as a seat for seating furniture (1), comprising a motion device (3) according to any one of the preceding claims.

21. The seat (2) according to claim 20, comprising a cover surrounding the motion device (3).

22. The seat (2) according to claim 20 or 21, comprising an anti-slip layer mounted below the second lower plate-like element (5).

23. A type of seating furniture (1), comprising a seat (2) according to claim 20, 21 or 22.

24. The seating furniture (1) according to claim 23, wherein, The seating furniture includes chairs (17), such as office chairs (18).

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