NZ764123B2 - A seat module - Google Patents
A seat module Download PDFInfo
- Publication number
- NZ764123B2 NZ764123B2 NZ764123A NZ76412318A NZ764123B2 NZ 764123 B2 NZ764123 B2 NZ 764123B2 NZ 764123 A NZ764123 A NZ 764123A NZ 76412318 A NZ76412318 A NZ 76412318A NZ 764123 B2 NZ764123 B2 NZ 764123B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- seat
- grooves
- backrest
- coupling element
- seat module
- Prior art date
Links
- 230000001808 coupling Effects 0.000 claims abstract description 37
- 238000010168 coupling process Methods 0.000 claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 claims abstract description 37
- 230000000875 corresponding Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 210000003491 Skin Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 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
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03288—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with resilient blocks
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/12—Theatre, auditorium, or similar chairs
- A47C1/124—Separate chairs, connectible together into a row
-
- 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
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
-
- 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
- A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
- A47C7/566—Resiliently mounted seat or back-rest
-
- 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
- A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
- A47C7/58—Hinges, e.g. for mounting chairs in a curved row
Abstract
There is described a seat module for use in furniture for sitting, the seat module comprising a backrest (1) and a seat (2) and a coupling element (3), the backrest (1) being adapted to run along rear grooves (7) arranged in respective sides of the coupling element at its rear edge, a rear portion of the seat (2) is connected to the backrest (1) and a front portion of the seat (2) is adapted to run along front grooves (9) arranged in respective sides of the coupling element in its leading edge. The seat module further comprises a spring operated self straightening mechanism for the backrest. f the seat (2) is connected to the backrest (1) and a front portion of the seat (2) is adapted to run along front grooves (9) arranged in respective sides of the coupling element in its leading edge. The seat module further comprises a spring operated self straightening mechanism for the backrest.
Description
A SEAT MODULE
Field of the Invention
The present ion relates to furniture for sitting, and more particularly to a seat
module that can be used in a chair or where several modules can be led to
form a seating row, as well as a tilting mechanism that is particularly suitable for
use in such a seat module.
Background
So-called recliners are usually fitted with a control mechanism so that the angle of
the backrest can be varied. The seat and backrest are usually hinged er while
the backrest is pivotally attached to the armrests on each side. The user can then
vary the angle of the backrest by pushing the body back and forth.
From Norwegian Patent 335401 it is known furniture for sitting where the position
of the backrest and seat can be set in the same manner as in the recliners
ned above. Here, however, the entire mechanism is hidden under the seat. A
virtual turning point is established for the backrest so that the backrest does not
have to be fixed to the armrests. The solution can therefore also be used in chairs
without armrests, such as dining chairs.
There are also known office chairs where the backrest angle can be varied by
turning a wheel or by operating a lever that unlock the backrest. With this solution,
however, the backrest cannot be adjusted continuously as in the previous
examples, as the backrest will return to the locked on when the user has
ed the regulation. Such chairs may also have a tilt function that allows the
backrest and seat to be tilted as a unit. This e can also be locked.
Summary of the Invention
It is an object of at least one embodiment of the present invention to provide a seat
module for use in furniture for sitting that is designed for rational production and
can be used in several different items of furniture such as chairs and sofas or for
interconnecting multiple seats in a row.
1003242391
In particular, the present invention es a seat module for use in furniture for
sitting, the seat module comprising a backrest, seat and coupling element, the
coupling element comprising two side walls held together by transverse elements
and further comprising rear grooves arranged in a rear end of the coupling element
and front grooves arranged at a forward end of the coupling element, the rear and
front grooves being arranged in respective sidewalls of the coupling element,
n the backrest comprises brackets adapted to engage and run in said rear
grooves, wherein a rear portion of the seat is connected to the backrest, and
n a front n of the seat is connected to a sliding unit g in said
front grooves. The coupling element comprises through-openings located in the
rear grooves, the seat module further comprising a locking rod adapted to pass
through holes in the brackets and through said openings so that the backrest is
locked to the coupling element, the sliding unit ses a slide rod with sliding
sleeves at each end, the sliding sleeves being adapted to engage said front
grooves, a spring is provided between a transverse element in the coupling element
and said slide rod, and wherein the seat comprises rear notches adapted to grip the
locking rod and front notches adapted to grip the slide rod.
This arrangement fies the mounting of the st on the coupling element
and will also greatly simplify the assembly of the seat module as the seat merely
snaps into place on the coupling element. The spring has two functions as it
ensures optimal balance in the sliding function and straightens the backrest when
the user leaves the seat module. In case the seat module is used in a number of
chairs that stand around a table or as ts in a sofa, the automatic
rearrangement of the backrest will ensure that the furniture always gives a clean
impression.
ing to a preferred embodiment of the invention the seat module includes rear
s provided as arcuate or radial incisions, said brackets comprising
corresponding arcuate or radial protrusions d to engage the grooves of the
coupling element, and n the front grooves are provided as radial or arcuate
or linear through grooves with a pitch toward the front of the seat module.
Brief ption of the Drawings
The invention will now be described in detail with reference to the accompanying
drawings, in which:
s 1a and b are a side view of a chair incorporating a seat module according to
the ion,
Figure 2 shows the individual elements included in the chair, in side view,
Figure 3 is a perspective view showing the construction of the chair in more detail,
Fig. 4 is a perspective view showing s of a g joint included in the
invention.
Detailed Description
In the following, directional indications such as "front", "rear", "upward",
"downward", "forward", "backward", "front", "downward projecting" etc., relate to a
seat module in its natural position of use shown in the drawings.
Figures 1a and 1b show a chair incorporating a seat module according to the
invention sing a backrest 1, a seat 2 and a coupling element 3 that holds the
backrest and seat er, and further is attaching the backrest and the seat to a
support member 4. Multiple seat modules, including backrests, seats and coupling
elements, can be put together to form a sofa or a row of seat modules, instead of a
chair as shown in the figure. Multiple seat s can also be attached to a corner
element so that they form a corner sofa and the like.
Fig. 1a shows the chair with its back in upright position, while Fig. 1b shows the
chair when the back is angled backwards. The seat is also pushed slightly forward
and the front of the seat is raised slightly in relation to the situation in Figure 1a.
Fig. 2 shows the seat from the side, as the backrest and seat are loosened from the
coupling element to show details of the structure. The coupling element comprises
on its two respective sides rear grooves 7 and front grooves 9, the rear s
being provided as arcuate or radial incisions. The backrest, in turn, comprises
brackets 5 with arcuate or radial protrusions 6 adapted to engage the s 7 of
the ng element so that the protrusions can slide back and forth in the grooves
7. Thus, the grooves 7 define a turning point and an imaginary hinge point for the
backrest 1.
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The front grooves 9 are provided as correspondingly directed radial or arcuate
through grooves, alternatively linear grooves with pitch toward the front of the seat
module. Sliding sleeves or lugs 23 mounted on a slide rod 21 (Fig. 3) run in the
grooves 9. The seat is secured to the slide rod by means of first notch 11 in the
front lower part of the seat. The g sleeves or lugs 23 are mounted on each end
of the slide rod 21, the sliding sleeves or lugs engaging respective front grooves 9
on either side of the coupling element 3.
Fig. 3 shows how the backrest is attached to the coupling element. The brackets 5
at the bottom of the backrest 1 are provided with arcuate projections 6, with the
projections of the two brackets facing inwards and towards each other. The
protrusions engage the rear grooves 7 and the backrest is locked to the coupling
element by means of a locking rod 12 which passes through holes 22 at the end of
each t and through udinal and through-openings 8 in the bottom of the
s 7. The length of the gs 8 defines the rotational range of the
backrest.
When assembling the seat, it is pressed down so that the front notches 11 grip
around the slide rod 21. The slide rod 21 is secured with a spring 13 to a cross
beam 14 which passes between the side walls of the coupling t 3. Similarly,
at the rear end of the seat 2, rear notches 10 are arranged to grip the locking rod
12 (Fig. 2). By pushing the backrest 1 forward into the rear groove 7, the g
rod 12 will be pressed into and locked in the rear notches 10.
The spring 13 serves to straighten the chair back when the user rises from the seat
module. If there are more modules in a row, this will ensure a tidy impression when
the modules are not in use. The spring has a strength adapted to balance the
sliding function of the seat module, and also to ensure proper straightening of the
backrest. When the seat is mounted, the spring will also have a bias.
The ng element 3 is preferably moulded as a single piece of fibre-reinforced
plastic composite, gh it can of course be manufactured in other suitable
polymeric als or metal, or partly of polymer and partly of metal. Likewise,
both the backrest and seat can contain a core of composite or plastic covered with
foam, fibre and fabric or skin. Alternatively, the said ts may consist of metal
cast in the backrest.
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Figure 4 is an exploded view showing details of the tilt mechanism used in each
seat module. The tilt mechanism comprises a central beam 15 which is polygonal in
cross section. The central beam is terminated at each end by fixing plates 20. In
this case the fixing plates are bolted to legs which form a support member or base
4. Around the central beam 15, there are elastic means 16. In the illustrated case,
the beam with the elastic means is raised into a recess in the coupling element 3,
the recess forming an opening in the U-shaped cross beam 14 (shown in Figure 3).
The central beam is kept in place by closing the opening of the U-beam with a
cover plate 17. The U-shaped cross beam and the cover plate thus form a housing
around the central beam and the elastic means. The elastic means allow a
rotational nt of the outer housing ve to the central beam. The central
beam and cover plate preferably consist of metal, while the elastic means consists
of parts manufactured in a suitable resilient material such as rubber or other type
of polymer.
As mentioned above, the central beam is polygonal in cross section. From a
production int, it is preferred that the beam be square or rectangular in
cross section, but in principle it may have any polygonal shape. In the simplest
case, it may be triangular in cross section, but it is also possible to use other
shapes such as hexagonal, octagonal, etc.
In the case shown, the cover plate is attached with bolts (machine screws) 18 and
nuts 19. Alternatively, the nuts can be replaced by a fixing plate d on top of
the central beam, with threaded holes being provided in the fixing plate for the
bolts 18. In yet another alternative embodiment, instead of through bolts, screws
that engage holes in the coupling element are used.
In an alternative embodiment of the tilting mechanism (not shown) an opening is
provided in the cover plate and a conical hole in the central beam. The opening is
aligned facing the conical hole so that the tilt mechanism can easily be d on
a chair base of the gas lift type.
The tilting mechanism can in principle also be ed in the opposite way, i.e. the
central beam is attached or included in the coupling element and passes between
the udinal walls f while the housing is ed to the base.
The tilting mechanism shown in Figure 4 is preferred for use in the shown seat
Djule because it can easily be included as part of the coupling element. However,
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other types of tilting mechanisms may be used, for example a torsion spring tilting
mechanism. Such tilting mechanisms are commonly used in office chairs. r,
such a solution will readily comprise several components which must be bolted to
the coupling element and a corresponding base cating the mechanism.
In use, the user can lean backwards and slide the seat forward. The backrest will
then slide forward in the grooves arranged in the coupling t so that the back
is angled backwards, Fig. 1b, while the seat (which is coupled to the backrest) will
be pushed forward along the front grooves of the coupling element. As the front
tracks are arranged, the seat will also be raised slightly at the leading edge. Once
the user has found his preferred position, the seat module setting is stable, even if
the user should choose to flip back and forth via the tilting link between seat
module and base.
1003242391
Claims (2)
1. A seat module for use in furniture for sitting, the seat module comprising a backrest, seat and coupling t, the coupling element comprising two side walls held together by transverse ts and further comprising rear grooves 5 arranged in a rear end of the coupling element and front grooves arranged at a forward end of the coupling t, the rear and front grooves being arranged in tive sidewalls of the coupling element, wherein the backrest comprises brackets adapted to engage and run in said rear grooves, wherein a rear portion of the seat is connected to the backrest, and n a front portion of the seat is 10 connected to a g unit running in said front grooves, wherein the coupling element comprises through-openings located in the rear grooves, the seat module further comprising a locking rod adapted to pass through holes in the brackets and through said openings so that the st is locked to the ng element, 15 the sliding unit comprises a slide rod with sliding sleeves at each end, the g sleeves being adapted to engage said front grooves, a spring is provided between a transverse element in the ng element and said slide rod, and wherein the seat comprises rear notches adapted to grip the locking rod and front 20 notches adapted to grip the slide rod.
2. The seat module of claim 1, wherein the rear grooves are provided as arcuate or radial incisions, said brackets comprising corresponding arcuate or radial protrusions adapted to engage the grooves of the coupling element, and wherein the front grooves are provided as radial or arcuate or linear through grooves with a 25 pitch toward the front of the seat module.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20171689A NO343925B1 (en) | 2017-10-20 | 2017-10-20 | Sit Module |
NO20171689 | 2017-10-20 | ||
PCT/NO2018/050252 WO2019078731A1 (en) | 2017-10-20 | 2018-10-22 | A seat module |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ764123A NZ764123A (en) | 2021-01-29 |
NZ764123B2 true NZ764123B2 (en) | 2021-04-30 |
Family
ID=
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