Seating arrangement

Abstract

The invention relates to a seating arrangement (1) with a frame (2) and a central column (3) which is pivotably connected to the frame (2) about a frame axis (4) in the region of one of its ends, such that an angle (α) of the column (3) relative to the frame (2) is adjustable, wherein a slide (5) is arranged on a front side of the column (3) which is displaceable along the column (3), wherein the slide (5) has a receptacle (20) to which a seat (6) can be coupled, wherein at least one support (8) is arranged for adjusting the angle (α), the support having a first end which is hinged to the column (3) and a second end which is hinged to the frame (2), wherein at least one of the ends is displaceable and lockable along the column (3) or along the frame (2) and / or wherein a length of the support (8) is adjustable.

Description

[0001] The invention relates to a seating arrangement, in particular a therapy seat.

[0002] Therapy chairs with a seat unit supported from below are known in the prior art. For example, a cylinder can be positioned directly beneath the seat unit to adjust its height. Designs are also known that incorporate a parallelogram-shaped four-bar linkage to increase the adjustment range. The cylinder can be, for example, a hydraulic cylinder, a lockable gas spring, or an electric spindle or linear actuator. Due to its position beneath the seat unit, lowering it to near the floor is limited. The lowest height of the seat unit above the floor is often around 25 cm, and significantly higher in electric versions.

[0003] DE 10 2008 024 298 A1 describes a therapy chair with a foot section, a column attached to it which slopes upwards and has at least one guide rail along which a seat arranged next to the column can be moved and locked at at least one height, wherein the seat can be tilted from a starting position about an axis which extends substantially horizontally in a first tilting direction, the arc of which is in a first tilting plane which extends substantially parallel to the guide rail, and in a tilting direction opposite to it.

[0004] CH 716 695 A1 describes a chair with integrated height adjustability, comprising a column, a seat attached to the column, and a backrest attached to the column. The column includes a first threaded rod with a first thread, a second threaded rod with a second thread, and a connecting piece. The first and second threaded rods are connected to each other such that they can rotate together about their respective longitudinal axes. The seat engages with the first thread. The backrest engages with the second thread. The adjustment range of the seat and the adjustment range of the backrest, when the first and second threaded rods are rotated together about their respective longitudinal axes, are different.

[0005] The invention is based on the objective of specifying a novel seating arrangement.

[0006] The problem is solved according to the invention by a seating arrangement with the features of claim 1.

[0007] Advantageous embodiments of the invention are the subject of the dependent claims.

[0008] According to the present invention, a seating arrangement is proposed comprising a frame, for example a chassis, and a central column, the column being pivotably connected to the frame about a frame axis at one of its ends, such that the angle of the column relative to the frame is adjustable. A slide is arranged on a front face of the column and is slidable along the column. The slide has a receptacle to which a seat can be attached. At least one support is arranged for adjusting the angle, the support having a first end that is articulated to the column and a second end that is articulated to the frame. To adjust the inclination of the column, at least one of the ends can be slidable and lockable along the column or along the frame. Alternatively, the length of the support can also be adjustable for this purpose.The shifting or adjustment of the length can be assisted or represented by a hydraulic cylinder, a gas spring, a lockable gas spring, an electric spindle drive or linear drive.

[0009] In one embodiment, the seat or the receptacle on the slide has a pivoting mechanism to allow the seat to pivot about another axis that is parallel to the frame axis.

[0010] In one embodiment, a mechanism for moving the carriage or assisting its movement along the column is arranged, comprising at least one cable pulley and at least one linear actuator for actuating the cable pulley according to the reverse principle of a block and tackle, with the linear actuator multiplying the stroke. The linear actuator can assist or effect an upward movement of the carriage. For movement in the opposite direction, a comparatively small downward force exerted on the seat can compensate for or overcompensate for the force exerted by the linear actuator. In other embodiments, the mechanism for moving the carriage or assisting its movement along the column can be implemented by a hydraulic cylinder, a gas spring, a lockable gas spring, an electric spindle drive, or a linear actuator instead of the cable pulley.

[0011] In one embodiment, a fixed pulley for redirecting the cable is arranged at an upper end of the column, while a guide carriage with a movable pulley is arranged at the rear of the column. The cable is guided over this movable pulley, and the linear drive is supported at one end on the movable guide carriage and at the opposite end at a fixed point on the column. The pulleys are rotatably mounted, for example, by means of at least one ball bearing. A fixed pulley is understood to be a pulley whose position relative to the column is unchanging. A movable pulley, on the other hand, is a pulley whose position relative to the column is variable, for example, by being arranged on the guide carriage, which itself is movable along the column.

[0012] In one embodiment, the linear drive is designed as a gas pressure damper or as an electric linear drive.

[0013] In one embodiment, the gas pressure damper is designed to lock the position of the slide. Alternatively, a separate clamping mechanism is provided to lock the position of the slide, for example, by clamping a push rod. Alternatively, the clamping mechanism may have a detent element with locking bolts or detent rails.

[0014] In one embodiment, several linear drives, in particular gas pressure dampers, are arranged in parallel with each other.

[0015] In one embodiment, the cable pull is guided in a guide groove inside the column at its front.

[0016] In one embodiment, at least one further cable tensions the carriage downwards, is guided over a further fixed deflection pulley at the lower end of the column on its rear side and can be attached to the guide carriage to act in the opposite direction and fix the carriage.

[0017] In one embodiment, the slide and / or the guide slide has a plurality of rollers and / or support rollers and / or sliding blocks that engage in profile grooves in the column.

[0018] In one embodiment, the frame has two side parts or runners arranged parallel to each other at a distance from each other, with the frame axis connecting the two side parts or runners.

[0019] In one embodiment, two supports are arranged which are hinged to one side of the column and to one of the side parts or skids, wherein the two supports are in particular connected to each other and / or form a support arch.

[0020] The solution according to the invention makes it possible to lower the seat closer to the floor, but also to adjust it upwards, for example to table height. Furthermore, the adjustable column significantly increases the adjustment range for the seat and backrest angles.

[0021] The central profile allows the chassis to be folded. Furthermore, the seat can be detached from the frame, making the therapy seat easy to transport (e.g., for a holiday). Optionally, the column can also be detached from the frame to further improve portability.

[0022] Exemplary embodiments of the invention are explained in more detail below with reference to drawings.

[0023] It shows: Fig. 1 a schematic view of a seating arrangement, in particular a therapy seating arrangement, with a central column and a sliding carriage to which a seat is attached, Fig. 2 a schematic view of the seating arrangement in which the carriage and the seat are moved all the way down the column, Fig. 3 a schematic view of the seating arrangement in the folded state without the seat, Fig. 4 a schematic detail view of a front of the column with the carriage, Fig. 5 a schematic detail view of the back of the column with the carriage, Fig. 6 Another schematic detail view of the back of the column, in which the cable pulleys are schematically represented, Fig. 7 a schematic view of another embodiment of the seating arrangement, and Fig. 8 a schematic view of a longer frame.

[0024] Corresponding parts are marked with the same reference symbols in all figures.

[0025] Fig. Figure 1 is a schematic view of a seating arrangement 1, in particular a therapy seating arrangement 1, which can be used, for example, by children or adolescents.

[0026] Seating arrangement 1 can be used, for example, in homes or in facilities such as kindergartens or therapy centers. Seating arrangement 1 is foldable and therefore portable, making it suitable for use in other locations as well.

[0027] The seating arrangement 1 includes a frame 2, for example a chassis 2 with wheels 22 or casters 22 (in Fig. 7 shown), and a central column 3. In the area of ​​one of its ends, the column 3 is pivotally connected to the frame 2 about a frame axis 4, so that an angle α of the column 3 relative to the frame 2 can be adjusted by pivoting the column 3.

[0028] The frame 2 can, for example, have two side parts 2.1, 2.2 or skids 2.1, 2.2, which are arranged parallel to each other and spaced apart. The frame axis 4 can connect the two side parts 2.1, 2.2 or skids 2.1, 2.2 to each other.

[0029] A slide 5 is arranged on one side of the column 3 and is slidable along the column 3. The slide 5 has a receptacle 20 to which a seat 6 can be coupled, so that the seat 6 can be slid along the column 3 with the slide 5, but can also be detached from the slide 5.

[0030] In a usage position of the seating arrangement 1, which is in Fig. As shown in Figure 1, the frame 2 rests on a base 7, with the frame axis 4 arranged horizontally. The column 3 is, for example, pivoted diagonally upwards. By sliding the carriage 5 along the column 3, the seat 6 can be adjusted with respect to its height above the base 7.

[0031] In Fig. 1 The carriage 5 with the attached seat 6 is located at approximately half the height of the column 3. Fig. Figure 2 is a schematic view of the seating arrangement 1, in which the carriage 5 with the attached seat 6 has been lowered all the way down the column 3, so that the seat 6 is at a very low height above the ground 7. A child sitting in the seat 6 could thus play almost as if sitting on the ground, in particular participating in the play of other children on the ground who themselves do not necessarily require such a seating arrangement 1.

[0032] To adjust the angle α of the column 3, at least one support 8 can be arranged, having a first end that is hinged to the column 3, for example at a point remote from the frame axis 4. A second end of the support 8 is hinged to the frame 2 and can be locked in various positions along the frame 2, in particular along at least one of the side parts 2.1, 2.2 or one of the skids 2.1, 2.2, in an adjustment direction V. In this way, a stable triangle is formed, the vertices of which are defined by the frame axis 4, the hinge point of the support 8 on the column 3, and the hinge point of the support 8 on the frame 2. The adjustment direction V can, for example, be horizontal in the operating position of the seating arrangement 1.

[0033] In one embodiment, two supports 8 are arranged, which are hinged to one side of the column 3 and to one of the side parts 2.1, 2.2 or to one of the skids 2.1, 2.2. Furthermore, the two supports 8 can be connected to each other and form a support arch 8.

[0034] Fig. Figure 3 is a schematic view of the seating arrangement 1 without seat 6. The column 3 is pivoted about the frame axis 4 so that it lies parallel to the frame 2, in particular to the side panels 2.1, 2.2 or skids 2.1, 2.2. This position is particularly suitable for transporting or storing the seating arrangement 1. The seat 6 can be detached from the carriage 5 and thus transported, stored, or used separately. This simplifies transport both in terms of space requirements, since the frame 2 with the column 3 can be stored in one location and the seat 6 in another, and in terms of weight, since the individual weights of the frame 2 with the column 3 and the seat 6 allow transport for most people, whereas the total weight of the seating arrangement 1 with the frame 2, the column 3, and the attached seat 6 could be too high for some people.

[0035] The pivotability of the column 3 relative to the frame 2 enables the folding of the seat assembly 1 and a large adjustment range (seat and backrest angles of the seat 6). The seat 6 itself or the mounting 20 on the carriage 5 can also have a pivoting mechanism to allow the seat 6 to pivot (also called tilting) about a further axis A, which is parallel to the frame axis 4. In this way, the inclination of a seat surface 9 and a backrest 10 of the seat 6 relative to the column 3 can be adjusted. The adjustment of the seat 6 or the mounting 20 about axis A can be achieved by means of a gas spring damper, which can be locked, or a detent plate with a gas spring. The backrest 10 can also be adjusted in its angle α relative to the seat surface 9 by means of a further adjustment mechanism.

[0036] The seat 6 can be coupled, in particular at its rear bottom, to the receptacle 20 on the carriage 5.

[0037] By adjusting the angle α of the column 3, the adjustment range of the seat angle relative to the base 7 can be changed, since the swivel mechanism on the seat 6 itself or on the mounting 20 on the slide 5 swivels the seat 6 relative to the column 3.

[0038] For example, a reclining position of the seat 6 can also be set by adjusting the column 3 and the backrest 10 far to the rear and the seat surface 9 far to the front.

[0039] Fig. Figure 4 is a schematic detail view of the front of column 3 with the carriage 5. Fig. Figure 5 is a schematic detail view of the back side of column 3.

[0040] A mechanism for moving the carriage 5 along the column 3 can be arranged in and / or on the column 3 and may incorporate one or more cable pulls 21 (in Fig. (Figure 6) have, from which the carriage 5 is suspended upwards. The cables 21 can be guided in respective guide grooves 11 within the column 3 at its front. A fixed pulley 12 can be arranged at an upper end of the column 3 for deflecting the cables 21. One or more further cables 21 can brace the carriage 5 downwards and be guided over another fixed pulley (not shown) at the lower end of the column 3 to its rear. A guide carriage 15, which is movable along the column 3, can be arranged at the rear of the column 3. At least one movable pulley 16 can be arranged on this guide carriage, over which the cables 21 can be guided to form a block and tackle.Furthermore, one, two, or more linear actuators 17, in particular gas springs 17, can be provided, each supported at one end on the movable guide carriage 15 and at the opposite end at a fixed point on the column 3. In this way, a comparatively large force applied by the linear actuator 17, in particular the gas spring 17, can be converted, with a comparatively small stroke of the gas spring 17 and the guide carriage 15, into twice the stroke of the carriage 5 and the seat 6 with half the force. By means of additional movable guide carriages 15 with movable pulleys 16, the stroke can be further multiplied according to the principles of a block and tackle. With several linear actuators 17, in particular gas springs 17, these can be mechanically connected in parallel to each other in order to add the forces.

[0041] The carriage 5 has a plurality of rollers 13 and / or support rollers 13 and / or sliding blocks that engage in several profile grooves 14 in the column 3. The guide carriage 15 can also have rollers 13 and / or support rollers 13 and / or sliding blocks.

[0042] The gas pressure dampers 17 can be designed to lock the position of the slide 5. Alternatively, locking the slide 5 at the desired height can be achieved by a separate clamping mechanism 18, which, for example, clamps a push rod 19.

[0043] In other embodiments, the clamping mechanism 18 can have a locking element with locking bolts or locking rails similar to a perforated sheet.

[0044] Instead of the gas pressure dampers 17, an electric linear actuator 17 can also be used.

[0045] The carriage 5, which is attached to the profile with rollers or sliding blocks, is held by one or two cable pulls 21.

[0046] Fig. Figure 6 is another schematic detail view of the back of column 3, in which the cable pulleys 21 are shown schematically.

[0047] Fig. Figure 7 is a schematic view of an embodiment of the seat arrangement 1. The angle adjustment of the column 3 can also be effected by moving a pivot point 23 of the support 8 on the side part 2.1, 2.2.

[0048] While the adjustment direction V in the Fig. In the embodiment shown in 1, for example, the direction of adjustment V runs parallel to the substrate 7, in which Fig. In the embodiment shown in section 7, the support 8 is directed obliquely upwards, for example by means of an elongated hole 24 in which the pivot point 23 of the support 8 can be slidably mounted. By adjusting the angle, the seat 6 can be tilted or the adjustment range of the additional seat tilt can be extended. The adjustment can be locked by clamping, detent pins, or a lockable gas spring. Additionally, the adjustment can be facilitated or assisted by gas springs.

[0049] Different frame lengths 2 allow for a wide variety of applications. The angle adjustment is therefore virtually unlimited (seat tilt). This makes it possible to offer a compact version of the seating arrangement 1 for active children (upright sitting position) with a shorter frame 1, or a version of the seating arrangement 1 with a longer frame 1, which, due to a greater distance between the frame axis 4 and the pivot point 23, can also offer reclining-like positions.

[0050] Fig. Figure 8 is a schematic view of such a longer frame 1. REFERENCE MARK LIST 1 Seating arrangement 2 Frame, chassis 2.1, 2.2 Skid, side panel 3rd pillar 4 frame axle 5 sleds 6 seats 7 Subsurface 8 Support, support arch 9 Seating area 10 Backrest 11 Guide groove 12 Pulley 13 Roller, support roller 14 Profile groove 15 guide carriages 16 Pulley 17 Linear actuator, gas pressure damper 18 clamping mechanism 19 Push rod 20 recordings 21 cable pull 22 wheel, roller 23 Pivot point 24 slotted holes Axis V Adjustment direction α angle

Claims

Seating arrangement (1) with a frame (2) and a central column (3) which is pivotably connected to the frame (2) about a frame axis (4) in the region of one of its ends, such that an angle (α) of the column (3) relative to the frame (2) is adjustable, wherein a slide (5) is arranged on a front side of the column (3) which is slidable along the column (3), wherein the slide (5) has a receptacle (20) to which a seat (6) can be coupled, wherein at least one support (8) is arranged for adjusting the angle (α), the support having a first end which is articulated to the column (3) and a second end which is articulated to the frame (2), wherein at least one of the ends is slidable and lockable along the column (3) or along the frame (2) and / or wherein a length of the support (8) is adjustable. Seating arrangement (1) according to claim 1, wherein the seat (6) or the receptacle (20) on the slide (5) has a pivoting mechanism to enable the seat (6) to pivot about a further axis (A) which is parallel to the frame axis (4). Seating arrangement (1) according to claim 1 or 2, wherein a mechanism for moving the carriage (5) or for assisting the movement along the column (3) is arranged, comprising at least one cable pull (21) and at least one linear drive (17) for actuating the cable pull (21) according to the reverse principle of the pulley system with multiplication of a stroke of the linear drive (17). Seating arrangement (1) according to claim 1 or 2, wherein a mechanism for moving the slide (5) or for supporting the movement along the column (3) is arranged, comprising at least one hydraulic cylinder, at least one gas spring, at least one electric spindle drive or at least one other type of linear drive. Seating arrangement (1) according to claim 3, wherein a fixed deflection pulley (12) for deflecting the cable pulley (21) is arranged at an upper end of the column (3), wherein a guide carriage (15) movable along the column (3) with a movable deflection pulley (16) is arranged at a rear side of the column (3), over which the cable pulley (21) is guided, wherein the linear drive (17) is supported at one end on the movable guide carriage (15) and at an opposite end at a fixed point on the column (3). Seating arrangement (1) according to claim 3 or 5, wherein the linear drive (17) is designed as a gas pressure damper (17) or as an electric linear drive (17). Seat arrangement (1) according to claim 6, wherein the gas pressure damper (17) is designed to lock the position of the slide (5), or wherein a separate clamping mechanism (18) is arranged to lock the position of the slide (5), which for example clamps a push rod (19), or wherein the clamping mechanism (18) has a detent element with locking bolts or detent rails. Seating arrangement (1) according to one of claims 3 to 7, wherein several linear drives (17) are arranged in parallel with each other. Seating arrangement (1) according to one of claims 3 and 5 to 7, wherein the cable pull (21) is guided in a guide groove (11) within the column (3) at its front. Seating arrangement (1) according to one of claims 3 and 5 to 8, wherein at least one further cable pull (21) tensions the carriage (5) downwards and is guided over a further fixed deflection pulley (12) at the lower end of the column (3) on its rear side. Seat arrangement (1) according to one of the preceding claims, wherein the slide (5) and / or the guide slide (15) has a plurality of running rollers (13) and / or support rollers (13) and / or sliding blocks which engage in several profile grooves (14) in the column (3). Seating arrangement (1) according to one of the preceding claims, wherein the frame (2) has two side parts (2.1, 2.2) or skids (2.1, 2.2) arranged parallel to each other at a distance from each other, wherein the frame axis (4) connects the two side parts (2.1, 2.2) or skids (2.1, 2.2) to each other. Seating arrangement (1) according to claim 12, wherein two supports (8) are arranged which are hinged to one side of the column (3) and to each of the side parts (2.1, 2.2) or one of the skids (2.1, 2.2). Seating arrangement (1) according to claim 13, wherein the two supports (8) are connected to each other and / or form a support arch (8).

Images