EP3773078A1 - Seating furniture support arrangement - Google Patents
Seating furniture support arrangementInfo
- Publication number
- EP3773078A1 EP3773078A1 EP19785797.2A EP19785797A EP3773078A1 EP 3773078 A1 EP3773078 A1 EP 3773078A1 EP 19785797 A EP19785797 A EP 19785797A EP 3773078 A1 EP3773078 A1 EP 3773078A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- longitudinal beam
- elastic sheet
- seating furniture
- support arrangement
- pivoting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229940076664 close up Drugs 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/28—Seat parts with tensioned springs, e.g. of flat type
- A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/02—Upholstery attaching means
- A47C31/023—Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/02—Dismountable chairs
- A47C4/028—Upholstered chairs, e.g. metal, plastic or wooden chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/04—Metal chairs, e.g. tubular
- A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
Definitions
- the present invention relates to a seating furniture support
- the support may be for example be provided by sheets stretched between the longitudinal beams.
- Such pieces of furniture may be designed to be assembled by persons not specially trained for the task at the point of future use.
- a sofa seating furniture support arrangement for a seat or a backrest comprising a first and a second longitudinal beam, each being mountable to a seating furniture frame comprising one or more parts; and a transverse stretcher mountable between the first longitudinal beam and the second longitudinal beam.
- the transverse stretcher may be individually mountable and may be separate from the frame.
- the transverse stretcher may be mounted between midpoints of the first longitudinal beam and the second longitudinal beam.
- the transverse stretcher provides additional structural strength to the seating furniture support arrangement, while still providing a piece of seating furniture that is easy to assemble. Further, it allows a piece of seating furniture, such as a sofa, with such a support arrangement to be made larger than what otherwise would be possible, while still providing adequate structural strength from the support arrangement.
- the seating furniture support arrangement may further comprise an elastic sheet for providing support for the seat; and a mechanism for stretching the elastic sheet between the first longitudinal beam and the second longitudinal beam through pivoting of the first longitudinal beam, with respect to the frame, in a stretching direction, in response to an application of an external force or torque, wherein the longitudinal beam is pivotable on the frame around a pivot axis and the stretcher in mounted position locks the first longitudinal beam in place in a final position with the elastic sheet stretched.
- the transverse stretcher both provides structural support and serves to lock the mechanism for stretching the elastic sheet in the position where the elastic sheet is stretched. This provides for a simple mechanism having few parts, which still is easy to operate.
- the elastic sheet may be, with the seating furniture support
- a large degree of elasticity is not required in the elastic sheets, i.e., their coefficient of elasticity, defined as the ratio of tension force to degree of stretching, may be rather high.
- the transverse stretcher at each of its ends have pins which, with the transverse stretcher in mounted position, fit with holes on the first longitudinal beam and said second longitudinal beam for mounting the transverse stretcher.
- the transverse stretcher may comprise two parts connected at a hinge, where the hinge is lockable for locking the transverse stretcher in mounted position.
- the elastic sheet may be a first elastic sheet and the seating furniture support arrangement may further comprise a third longitudinal beam and a second elastic sheet for providing support for a backrest, where the second elastic sheet is also connected to the first longitudinal beam, so that the pivoting of the first longitudinal beam also stretches the second elastic sheet between the first longitudinal beam and the third longitudinal beam.
- the seating furniture support arrangement may be arranged so that the external force or torque works against the tension force of one of the first elastic sheet and the second elastic sheet up to the point of maximum tension, the other of the first elastic sheet and the second elastic sheet only being stretched with the pivoting having passed the point of maximum tension.
- the tension force of one of the sheets may be used to stretch the other sheet past the point of maximum tension, with less force or torque being needed to pivot the stretching member up to that point, than if both elastic sheets had been stretched at the same time.
- the seating furniture support arrangement may be arranged so that the external force or torque works against the tension forces of both the first elastic sheet and the second elastic sheet up to the point of maximum tension. This allows for a high final degree of tension in both sheets.
- the elastic sheet may, with the seating furniture support arrangement in installed position, fold around the first longitudinal beam forming a pocket, preferably being closed by a seam. This arrangement is easy to manufacture while still being durable.
- the seating furniture support arrangement may further comprise a lever for applying the external force or torque for pivoting the first longitudinal beam, where the lever preferably is removable or foldable after use. This makes it easy to operate the mechanism.
- the seating furniture support arrangement may further comprise a stop, against which the tension force of the elastic sheet acts through the first longitudinal beam to keep the first longitudinal beam in place in the final position.
- the seating furniture support may further comprise a latch further acting to lock the first longitudinal beam in place in the final position.
- a piece of seating furniture comprising the seating furniture support arrangement above
- a kit for assembling a piece of seating furniture comprising the seating furniture support arrangement above.
- assembling a piece of seating furniture comprising providing a seating furniture frame in one or more parts, a first longitudinal beam and a second longitudinal beam, each attached to the seating furniture frame, and an elastic sheet for providing support for a seat or a backrest; stretching the elastic sheet between the first longitudinal beam and the second longitudinal beam, by pivoting the first longitudinal beam with respect to the frame, bringing the first longitudinal beam to a final position; and locking the first longitudinal beam in the final position by mounting a transverse stretcher between the first longitudinal beam and the second longitudinal beam,
- Figs 1A, 1 B, and 1 C are perspective views of a sofa support arrangement according to the prior art.
- Fig. 2A shows a perspective view, close-up cross-sectional view, and close-up perspective view of a sofa with the support arrangement according to the present inventive concept in an initial position.
- Fig. 2B shows a perspective view, close-up cross-sectional view, and close-up perspective view of a sofa with the stretching member of the support arrangement pivoting in an intermediate position.
- Fig. 2C is a close-up cross-sectional view with the stretching member of the support arrangement pivoting at a position corresponding to the point of maximum tension.
- Fig. 2D is a perspective view, close-up cross-sectional view, and close- up perspective view of a sofa with the stretching member of the support arrangement in final position, with the elastic sheets stretched.
- Fig. 3 shows a perspective view of a sofa with the support arrangement in final position, with the elastic sheets stretched, illustrating seat and backrest pillows being added to complete the sofa.
- Fig. 4 is a cross-sectional view showing an alternative embodiment where the stretching member is separate from the first longitudinal beam.
- Figs 5A and 5B are perspective exploded views of a transverse stretcher.
- Fig. 6 is a perspective view of the assembled transverse stretcher.
- Figs 7A and 7B are perspective views and Figs 7C and 7D are cross sectional views showing the sequence of mounting the transverse stretcher between two longitudinal beams of a sofa.
- Figs 8A-8C are perspective views showing the mounting sequence of a sofa equipped with the transverse stretcher.
- FIG. 1 shows an arrangement according to the prior art.
- a sofa 102 frame comprises a first short-end section 104a, a second short-end section 104b and a support arrangement 106 comprising a first longitudinal beam 108, a second longitudinal beam 1 10, and a third longitudinal beam 1 12, all beams running between the first short-end section 104a and the second short-end section 104b.
- a first sheet 1 14 may be stretched between the first longitudinal beam 108 and the second longitudinal beam 1 10 and a second sheet 1 16 may be stretched between the first longitudinal beam 108 and the third longitudinal beam 1 12 forming, respectively, a support for a seat and for a backrest.
- the seat and/or backrest may be formed by placing pillows on the sheets 1 14, 1 16.
- the first longitudinal beam may be manually pulled and fixed with a screw 120.
- Fig 2A-2D show a seating furniture support arrangement 6 according to the present inventive concept.
- the seating furniture support arrangement 6 is for a sofa 2, however, the arrangement is equally suitable for other pieces of seating furniture, such as an armchair.
- a sofa 2 comprises a frame comprising a first short-end section 4a, a second short-end section 4b and the support arrangement 6.
- the support arrangement 6 comprises a first longitudinal beam 8, a second longitudinal beam 12, and a third longitudinal beam 10.
- the first longitudinal beam 8, the second longitudinal beam 12 and the third longitudinal beam 10 may be provided in a kit and mounted to the first short-end section 4a and the second short-end section 4b at the site of use of the sofa. As depicted in Fig. 2A they are each mounted between the first short-end section 4a and the second short-end section 4b.
- a first elastic sheet 14 is attached to the first longitudinal beam 8 and the second longitudinal beam 12 and a second elastic sheet 16 is attached to the first longitudinal beam 8 and the third longitudinal beam 10.
- the second longitudinal beam 12 and the third longitudinal beam 10 are fixed with respect to the first short-end section 4a and the second short- end section 4b, while the first longitudinal beam 8 is pivotable, through plates 20, about a pivot axis running between a first pivot point P on the first short- end section 4a and a corresponding second pivot point on the second short- end section 4b.
- a lever 18, functioning as a handle, adapted to aid pivoting of the first longitudinal beam 8 is fixed to the first longitudinal beam 8 at a midpoint between the first short-end section 4a and the second short-end section 4b of the frame.
- Other locations for a lever or handle, as well at a different number of handles are equally possible, or no handle at all with an external force or torque provided through different means.
- the handle 8 or lever will be located on the stretching member.
- the handle is removable, for example by being screw-mountable on the first longitudinal beam 8.
- the lever 18 may be threaded as to be screw-mounted in a corresponding threaded bore in the first longitudinal beam 8 to be easily mountable before use and dismountable after use.
- the lever 18 may be foldable into or against the first longitudinal beam 8 after use.
- a cross-sectional view of the area close to the first pivot point P shows the longitudinal beam 8, the lever 18, the first sheet 14 and the second sheet 16.
- the sheets 14, 16 attach to the first longitudinal beam 8 at an attachment point 26 which is rotatable with respect to the longitudinal beam 8.
- an elastic sheet folds around the first longitudinal beam 8 forming a pocket, which is closed by a seam at the attachment point 26.
- the elastic sheet in the form of the pocket is rotatable with respect to the first longitudinal beam 8.
- the first elastic sheet 14 and the second elastic sheet 16 may be part of the same elastic sheet.
- a vertical, or close to vertical, plate 20 is fixed with respect to the first longitudinal beam 8 close to the first short-end section 4a of the frame.
- the plate has a slot 22 configured to interact with a stop on the first short-end section of the frame in the form of a pin 24.
- An identical plate 20 configured to interact with an identical tap (not visible) in the second short-end section 4b located close to the second short-end section 4b of the frame.
- the plates 20, and thereby the first longitudinal beam 8, are pivotable around the first pivot point P and the second pivot point (not visible) respectively.
- the first longitudinal beam 8, the lever 18, and the plates 20 provide a mechanism for, during assembly of the sofa, stretching the first elastic sheet 14 between the first longitudinal beam 8 and the second longitudinal beam 12, and further for stretching the second elastic sheet 16 between the first longitudinal beam 8 and the third longitudinal beam 10, where first longitudinal beam 8 functions as a stretching member for the elastic sheets, as will be described below.
- a circular arc L1 shows the path traveled by the slot 22 of the plate 20 when the first longitudinal beam 8 pivots around the pivot point P.
- a second circular arc L2 shows the path traveled by the center of the first longitudinal beam 8 during the same pivoting movement.
- the first elastic sheet 14 is, with the sofa seating furniture support arrangement 6 in installed position, connected to the stretching member, which in this embodiment is identical to the first longitudinal beam 8, in such a way that the first longitudinal beam 8 pivoting with respect to the frame, in response to an application of an external force or torque, stretches the first elastic sheet 14.
- Fig. 2B shows the same arrangement as in Fig.
- the tension force of the first elastic sheet 14 will cause the attachment point 26 to move around the first longitudinal beam 8 so that the stretched first elastic sheet 14 is perpendicular to the surface of the first longitudinal beam 8.
- the path followed by the attachment point 26 at this stage of pivoting will be determined by this condition.
- the attachment point 26 may instead be fixed with respect to the first longitudinal beam 8 and the plates 20, i.e., to the stretching member. In this case the attachment point 26 will during pivoting follow a circular path similar to L1 or L2.
- the first longitudinal beam 8 has a circular cross-section.
- the longitudinal beam 8 may either be fixed with respect to the plates 20, resulting in an attachment point 26 fixed with respect to the plates 20, or be pivoted at the plates 20 at a point offset from the first pivot points P and the second pivot point.
- the torque provided by the external force on the lever 18 works against the torque provided by the tension force of the first elastic sheet 14 until the position maximum tension is reached, as depicted in Fig. 2C, past which position of maximum tension the tension force of the first elastic sheet 14 instead facilitates further pivoting of the first longitudinal beam 8, acting to keep the stretching member in place its final position, as depicted in Fig. 2D.
- the mechanism is easy to operate even when having a high tension in the elastic sheets, providing good rigidity to the support.
- the elastic sheets 14, 16 need to be elastic enough to be able to be brought to the position of maximum tension.
- a large degree of elasticity is not required in the elastic sheets, i.e., their coefficient of elasticity, defined as the ratio of tension force to degree of stretching, may be rather high.
- a higher coefficient of elasticity allows for a high degree of tension of the sheet, giving rigid support for the seat och backrest.
- a latch (not shown) may be provided to prevent the first longitudinal beam 8 from sliding back from the final position, for example due to an externally applied force.
- the second elastic sheet 16 and the distance between the attachment point 26 and the third longitudinal beam 10 are arranged so that the second elastic sheet remains slack during the pivoting movement up to the position of maximum tension (Fig. 2C) of the first elastic sheet 14, only being stretched after that point.
- the external force works against the tension force of the first elastic sheet up to the position of maximum tension, with the second elastic sheet only being stretched with the pivoting having passed the position of maximum tension.
- the tension force of one of the first elastic sheet 14 helps to stretch the second elastic sheet 16 past the position of maximum tension, with the effect of less external force being needed to pivot the stretching member up to that point.
- the position of the attachment point 26, being rotatable around the first longitudinal beam 8 will be determined by the condition that the vector sum of the tension force of the first elastic sheet 14 and the tension force of the second elastic sheet 16 is perpendicular to the surface of the first elastic beam 8.
- both the first elastic sheet 14 and the second elastic sheet 16 are stretched simultaneously up to the position of maximum tension.
- the position of maximum tension will be defined based on the vector sum of the tension force of the first elastic sheet 14 and the tension force of the second elastic sheet 16.
- Fig. 4 shows an alternative embodiment, in a cross-sectional view, where the first longitudinal beam 8 is separate from the mechanism 28 for stretching the first elastic sheet 14 and fixed to the frame.
- the elastic sheet 14 runs between the second longitudinal beam (not shown) and the first longitudinal beam 8. However, instead from being fixed at the first longitudinal beam, it now continues to the separate stretching mechanism 28. In the depicted embodiment, the first elastic sheet 14 lies on top of the first longitudinal beam 8. However, other arrangements, such as the first elastic sheet 14 running through a slot or opening in the first longitudinal beam 8, are equally possible.
- the stretching mechanism 28 operates according to the same principle as described above in conjunction with Figs 2A— 2D.
- FIG. 3 shows the sofa 2 where the first elastic sheet 14 and the second elastic sheet 16 have been stretched according to the procedure described above.
- pillows 54 may be added, as indicated with arrows, to complete the sofa seats.
- pillows 52 may be added to complete the backrest.
- Figs 5A and 5B are exploded views showing a transverse stretcher 500 from two different angles.
- the stretcher 500 comprises a front part 502 and a back part 504, each having a quadratic cross section. They are joined at a hinge 520.
- the transverse stretcher 500 is intended to be mounted between the first longitudinal beam 8 and the second longitudinal beam 12 of a sofa, as described in the following.
- the front part 502 has a tap 506 designed to mate with a corresponding hole 704 in the second longitudinal beam 12 (of. Figs 7A and 7B).
- the tap 506 is surrounded by a collar 507 with a shape matching that of the second longitudinal beam 12.
- the back part 504 has a tap 508 designed to mate with a corresponding hole 702 in the first longitudinal beam 8 (of. Figs 7A and 7B).
- the tap 508 is surrounded by a collar 509 with a shape matching that of the first longitudinal beam 8.
- the front part 502 has at its back end protrusions 522 which extend through holes 514 in a cap 518 having a U-shaped cross section.
- a bolt 510 may be used to lock the hinge. Before the bolt 510 is applied and tightened, the front part 502 and the back part 504 are free to pivot against each other by means of the hinge 520, limited by a surface 516 of the front part 502 being stopped by the inner surface corresponding to the lower part of the“U” of the U-shaped profile of the cap 518.
- the hinge 520 may be locked by inserting and tightening the bolt 510 from the side of the back part 504, where the bolt 510 extends through a hole 51 1 in the cap 518, through the inner surface of the cap 518 and into a threaded hole 512 on the surface 516 of the front part 502, locking the hinge 520 and the surface 516 of the front part 502 against the inner surface of the cap 518 of the back part 504.
- Fig. 6 shows the transverse stretcher 500 thus assembled and locked.
- the stretcher 500 has a slightly bent shape, forming a smooth arc, which with the stretcher in installed position extends in a downward direction with respect to the sofa 2 (of. Figs 8A-8C).
- Figs 7A and 7B are perspective views and Figs 7C and 7D are cross sectional views showing the sequence of mounting the transverse stretcher 500 between the first longitudinal beam 8 and the second longitudinal beam 12 of the sofa 2 (of. Figs 8A-8C).
- the transverse stretcher 500 may be installed on piece of furniture with a pivotable first longitudinal beam 8, as will be described in conjunction with the sofa 2 of Figs 8A-8C below, or on a piece of furniture, such as a sofa, having fixed longitudinal beams, for example having the arrangement described in conjunction with Fig. 4 above.
- the tap 508 of the back part 504 of the transverse stretcher 500 is brought into the corresponding hole 702 of the first longitudinal beam 8.
- the bolt 510 has been inserted, but not tightened, so that there is play in the hinge 520.
- the tap 506 of the front part 502 is brought into the vicinity of, or in contact with, the corresponding hole 704 of the second longitudinal beam 12, possibly by wiggling the transverse stretcher 500 as shown by a double arrow.
- the resulting configuration is shown in cross section in Fig. 7C.
- the fact that the bolt 510 has not yet been tightened results in the play that allowed the transverse stretcher 500 to be inserted as just described.
- Figs 8A-8C are perspective views showing the mounting sequence of a sofa 2 equipped with a support arrangement 6 comprising the transverse stretcher 500.
- the sofa is similar to the one discussed above in conjunctions with Figs 2A-2D and all features and alternatives discussed there are applicable to this sofa 2, except for the differences discussed in the following.
- the sofa 2 comprises a frame comprising a first short end section 4a and a second short end section 4b and a seating support arrangement 6 comprising a first longitudinal beam 8, a second longitudinal beam 12 and a third longitudinal beam 10.
- a first elastic sheet 14 is stretchable between the first longitudinal beam 8 and the second longitudinal beam 12, forming support for the seat of the sofa, and a second elastic sheet 16 is optionally stretchable between the first longitudinal beam 8 and the third longitudinal beam 10.
- the first longitudinal beam 8 is pivotable at the first short end section 4a and the second short end section 4b, forming a pivot axis, for stretching the first elastic sheet 6, and optionally the second elastic sheet 16, according to the same principle as described in conjunction with Figs 2A-2D.
- a user may, during assembly of the sofa 2, apply an external force or torque on the lever 18, for stretching the first elastic sheet 14 and optionally the second elastic sheet 16.
- stretching occurs when the first longitudinal beam 8 pivots in a stretching direction that is opposite to what was described in conjunction with Figs 2A-2D , with the front side, with respect to the sofa, of the first longitudinal beam 8 moving downwards and the back side moving upwards.
- the stretching direction is indicated by a circular arrow.
- the stretching of the first elastic sheet 14 is indicated by two straight arrows.
- the first longitudinal beam 8 has a vertical plate 20 which eventually reaches a stop 24. After stretching, the lever 18 may be removed by the user.
- the transverse stretcher 500 may be installed as described in conjunction with Figs 7A-7D above. With the hole 702 (cf. Fig. 7 A) located offset to the pivot axis of the first longitudinal beam 8, the transverse stretcher 500 acts in the stretching direction on the first longitudinal beam 8, locking it in place in its final position.
- the inventive concept has mainly been described above with reference to a few embodiments. However, as is readily appreciated by a person skilled in the art, other embodiments than the ones disclosed above are equally possible within the scope of the inventive concept, as defined by the appended patent claims.
- an improved sofa seating furniture support arrangement for a seat or a backrest comprising a first and a second longitudinal beam, each being mountable to a seating furniture frame comprising one or more parts; an elastic sheet for providing support for one of the seat and the backrest; and a mechanism for stretching the elastic sheet between the first longitudinal beam and the second longitudinal beam.
- the mechanism comprises a stretching member pivotable on the frame.
- the elastic sheet is, with the sofa seating furniture support arrangement in installed position, connected to the stretching member in such a way that the stretching member pivoting with respect to the frame, in response to an application of an external force or torque, stretches the elastic sheet, with the external force or torque working against the tension force of the elastic sheet until a point of maximum tension is reached, past which point of maximum tension the tension force facilitates further pivoting of the stretching member, acting to keep the stretching member in place in a final position.
- a large degree of elasticity is not required in the elastic sheets, i.e., their coefficient of elasticity, defined as the ratio of tension force to degree of stretching, may be rather high.
- the stretching member may be the first longitudinal beam itself. This allows for a simple construction yet strong construction that still is easy to operate.
- the elastic sheet may be a first elastic sheet and the seating furniture support arrangement may further comprise a third longitudinal beam and a second elastic sheet for providing support for the other of the seat and the backrest, where the second elastic sheet is also connected to the stretching member of the mechanism, so that the pivoting of the stretching member also stretches the second elastic sheet between the first beam and the third beam.
- the seating furniture support arrangement may be arranged so that the external force or torque works against the tension force of one of the first elastic sheet and the second elastic sheet up to the point of maximum tension, the other of the first elastic sheet and the second elastic sheet only being stretched with the pivoting having passed the point of maximum tension.
- the tension force of one of the sheets may be used to stretch the other sheet past the point of maximum tension, with less force or torque being needed to pivot the stretching member up to that point, than if both elastic sheets had been stretched at the same time.
- the seating furniture support arrangement may be arranged so that the external force or torque works against the tension forces of both the first elastic sheet and the second elastic sheet up to the point of maximum tension. This allows for a high final degree of tension in both sheets.
- the elastic sheet may, with the seating furniture support arrangement in installed position, fold around the stretching member forming a pocket, preferably being closed by a seam.
- This arrangement is easy to manufacture while still being durable.
- the seating furniture support arrangement may further comprise a lever for applying the external force or torque for pivoting the stretching member, where the lever preferably is removable or foldable after use. This makes it easy to operate the mechanism.
- the seating furniture support arrangement may further comprise a stop, against which the tension force of the elastic sheet acts through the stretching member to lock the stretching member in place in the final position.
- the seating furniture support may further comprise a latch further acting to lock the stretching member in place in the final position.
- a piece of seating furniture comprising the seating furniture support arrangement above, and a kit for assembling a piece of seating furniture comprising the support arrangement above.
- assembling a piece of seating furniture comprising providing a seating furniture frame in one or more parts, a first longitudinal beam and a second longitudinal beam, each attached to the seating furniture frame, and an elastic sheet for providing support for a seat or a backrest; and stretching the elastic sheet between the first longitudinal beam and the second longitudinal beam, where the stretching of the elastic sheet comprises applying an external force or torque to pivot a stretching member with respect to the frame, wherein the elastic sheet is connected to the stretching member in such a way that the pivoting stretches the elastic sheet, the external force or torque working against the tension force of the elastic sheet until a point of maximum tension is reached, past which point of maximum tension the tension force facilitates further pivoting of the stretching member, acting to lock the stretching member in place in a final position.
- a seating furniture support arrangement (6) for a seat or a backrest comprising:
- a first (8) and a second (12) longitudinal beam each being mountable to a seating furniture frame comprising one or more parts;
- said second elastic sheet (16) also being connected to said stretching member of said mechanism, so that said pivoting of said stretching member also stretches said second elastic sheet (16) between said first beam (8) and said third longitudinal beam (10).
- a piece of seating furniture (2) comprising the seating furniture support arrangement (6) of any one of the preceding examples.
- a kit for assembling a piece of seating furniture comprising the support arrangement (6) of any one of examples 1-9.
- a seating furniture support arrangement (6) for a seat comprising:
- a first (8) and a second (12) longitudinal beam each being mountable to a seating furniture frame comprising one or more parts; and a transverse stretcher (500) mountable between said first longitudinal beam (8) and said second longitudinal beam (12).
- a transverse stretcher mountable between said first longitudinal beam (8) and said second longitudinal beam (12).
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1850404 | 2018-04-11 | ||
PCT/SE2019/050184 WO2019199216A1 (en) | 2018-04-11 | 2019-03-04 | Seating furniture support arrangement |
Publications (2)
Publication Number | Publication Date |
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EP3773078A1 true EP3773078A1 (en) | 2021-02-17 |
EP3773078A4 EP3773078A4 (en) | 2021-08-18 |
Family
ID=68164319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19785797.2A Pending EP3773078A4 (en) | 2018-04-11 | 2019-03-04 | Seating furniture support arrangement |
Country Status (3)
Country | Link |
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EP (1) | EP3773078A4 (en) |
CN (1) | CN112118771A (en) |
WO (1) | WO2019199216A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY195843A (en) | 2016-10-26 | 2023-02-23 | Ashley Furniture Ind Inc | Textile Deck Assembly for Furniture Items |
CN213282240U (en) * | 2020-06-19 | 2021-05-28 | 永艺家具股份有限公司 | Seat support device based on sliding clamping stretching |
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US20020145320A1 (en) * | 2001-04-09 | 2002-10-10 | Bernhard Zeiler | Futon furniture frame having a single panel of elastomeric support fabric |
US6877803B1 (en) * | 2003-10-08 | 2005-04-12 | Bejamin P. Reese | Foldable rocking chair |
CN201468587U (en) * | 2009-06-25 | 2010-05-19 | 杭州炬日电器有限公司 | Dismountable leisure chair |
DE102010055994A1 (en) * | 2010-12-23 | 2012-06-28 | Airbus Operations Gmbh | Lying or sitting device |
KR101696299B1 (en) * | 2015-05-19 | 2017-01-23 | 라제건 | Cot |
DE202017106470U1 (en) * | 2017-10-25 | 2017-11-07 | Zhejiang Hengfeng Top Leisure Co., Ltd. | Foldable lounger |
-
2019
- 2019-03-04 CN CN201980031773.7A patent/CN112118771A/en active Pending
- 2019-03-04 EP EP19785797.2A patent/EP3773078A4/en active Pending
- 2019-03-04 WO PCT/SE2019/050184 patent/WO2019199216A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3773078A4 (en) | 2021-08-18 |
CN112118771A (en) | 2020-12-22 |
WO2019199216A1 (en) | 2019-10-17 |
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