Europaisches Patentarnt
European Patent Office
© Publication number:
EUROPEAN
179
7 m
A2
Office europeen des brevets
(12)
0
PATENT
© Application number: 85850325.3
© Date of filing: 16.10.85
© Priority: 17.10.84 SE 8405183
© Date of publication of application :
30.04.86 Bulletin 86/18
© Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE
APPLICATION
© IntCI.*: A 47
A 47
C 9/02
C 13/00
© Applicant: Liedberg / Ostlund AB
Erik Dahlbergsgatan 14
S-41126G6teborg(SE)
© Inventor: Liedberg, Hans Lennart Martin
Waernsgatan 117
S-41670G6teborg(SE)
© Inventor; 6stlund, Lars-Erik
Brodragatan 66
S-41274Gdteborg(SE)
© Representative: Ryrlen, Evert et al,
ALFONS HEDBERGS PATENTBYRA AB Aschebergsgatan
35
S-41133G6teborg(SE)
© Work chair.
A work chair comprising a spat (20) and a back section
(28) which is pivotally mounted on an arm (24). The chair (10)
is arranged to be used for both sedentary and semisedentary working positions, In the former position the arm
assumes a rearwards/outer position and the back section
assumes an essentially perpendicular position, and in the
latter position the arm assumes a forwards/inner position
and the back section an essentially horizontal position in
which it serves as a support when the user assumes a
semi-sedentary position.
CM
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CO
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rs
The
back
chair
is
and
within
some e x t e n t
within
a back
section
with
lowered.
The
to movable
150 from
various
its
This
formed
are
as jobs
tion.
on a rod
the
back
is
is
movable
such
angle,
for
instance
position
for
adjustment
pivotally
may be
of two t e l e and
may be r a i s e d
seat
of
rod
in the
a manner
over
and
seat
which
base
consists
the
in
a chair
The s e a t
The post
mounted
often
work
is
chair
and for
for
limited
this
reason
typing
jobs
other
common w i t h i n
industry.
Also
in
section.
in o f f i c e s
be v e r t i c a l l y
to
so as
of which
by means
used
of
consists
on a m u l t i - a r m
arm ends.
as a work c h a i r
generally
type
usually
requiring
boards,
require
from a s e d e n t a r y
chairs
for
or
to
an angle
of a b o u t
the
to
it
back
and the
in the
that
jobs
for
often
for
the
entire
of
the
subject
working
is
not,
how-
frequently
However,
shifts
frequent
working
require
forced
day or most
to
remain
to
such
jobs,
position
that
such
However,
position.
jobs
are
per-
of o f f i c e
requiring
who perform
work
positions.
case
performed
for
It
a semi-sedentary
requiring
positions
like.
the working
jobs
works
suitable
is
working
for
use
a semi-sedentary
exist
personnel
non-sedentary
position
to
do not
As a r e s u l t ,
part
of
posi-
be p e r -
in a
of
which
it,
tiring.
very
The purpose
may be used
both
semi-sedentary
for
by means
comprising
a seat
one arm,
operated
sedentary
into
sedentary
positions.
invention
least
the
jobs
work
standing
is
for
positions
formed
the
desks,
writing
changed
working
places.
one arm.
positions.
by drawing
suitable
working
supported
a limited
position
useable
ever,
jobs
at
is
at
prior-art
a sitting
other
of
of
perpendicular
sitting
primarily
mounted
section
over
be used
industry
parts
back
or
level
castors
to
chairs
which
movable
scopically
is
the
of
on a post
provided
is
which
adjustment
mounted
in
industry
least
on at
and a
a seat
comprising
mounted
pivotally
adapted
work
a chair
concerns
being
Conventional
to
for
latter
particularly
in o f f i c e s ,
as
the
section,
The
invention
subject
of
which
a first
working
working
This
is
of
a chair
section,
chair
is
is
the
type
first
with
the
initially
and
mounted
pivotally
that
therein
wherein
a chair
and as a s u p p o r t
mentioned
section
position,
provide
in a c c o r d a n c e
characterized
in which
to
positions
achieved
and a back
operative
positions,
invention
it
operative
is
it
which
in
on a t
may be
adapted
position
for
the
back-section
mounting
back
and the
a second
section
operative
semi-sedentary
and the
back
section
Further
vention
will
wherein
position,
chair
of the
from
apparent
The work
described
the
in
vention
chair
in
accordance
with
following
1 is
in the
in which
working
a lateral
with
reference
tilted
position
position.
with
accordance
the
in-
the
and
description
invention
the
to the
it
will
accompanying
be
drawings,
3 and
in
a multi-arm
26 on which
In
work,
see
chair
of
1,
the
telescopically
of
Figs.
type
section
the
in
2-4
show the
position.
forwards/inwards
a rod
the
operative
position
in a s e m i - s e d e n t a r y
for
In t h i s
across
the
seat
12 which
support
pivotally
mounted.
chair,
20 to
seat
with
adapted
prior-art
manner
position
of
the
chair
which
is
a semi-sedentary
chair,
the
shaft
work
12 i s
to
adjust
10 when
(knee-bent)
arm 24 is
made p o s s i b l e
at
sedentary
The post
user.
the
mounted
for
the
of
their
a pivot
of
assuming
from
rotationally
height
the
position
18 at
20 is
offices.
conventional
upwards
much a c o n v e n t i o n a l
very
in e . g .
extends
pivotally
provided
use
a person
seat
An a r m i s
of the
designated
castors
24 is
operative
the
22.
ressembles
in
view o f
view and a plan
invention,
12 a c h a i r
The arm
position
generally
a support
post
28 is
chair
the
16 of which
22.
chair
working
a post
the
rod
the
the
as
comprises
attached
movable
serving
with
arms
operative
Fig.
in
in-
position.
accordance
end of
a back
the
level
10,
also
end of
outer
chair
the
with
work,
sedentary
a lateral
respectively
in
14 the
upper
is
and
for
accordance
an i n d i v i d u a l
operative
chair
base
At the
mounted
4 are
by numeral
generally
for
support
latter
the
The work
view of the
in
and
position,
chair
chair
adapted
position
lateral
provides
Figs.
view of the
operative
2 is a
Fig.
the
position
'
Fig.
the
in
subsequent
wherein,
ends.
operative
horizontal
into
for
adapted
second
an e s s e n t i a l l y
characteristics
is
and
claims.
dependent
the
chair
position
position,
a forward/inwards
arm assumes
assumes
become
the
in which
positions,
mounting
vertical
an e s s e n t i a l l y
assumes
working
back-section
the
a reardwards/outwards-tilted
arm assumes
owing
folded
to
the
of
provision
a notch
20.
chair
seat
shaft
26 will
In t h i s
The
back
position
above
which
and which
which
chair
the
assuming
18 d u r i n g
of
to
tends
32 is
support
position
in
Fig.
chair.
exert
for
adapted
force
When the
in
the working
as
a seat.
work
this
In
as mentioned
and p r o v i d e s
above,
very
and
rapidly
be r e g a r d e d
are
possible
omit
the
when
used
32 then
in
the
within
the
becomes
common
simply
from
of the
the
18 of
scope
the
working
position
superfluous.
semi-sedentary
working
with
2 the
support.
the
18.
back
is
position
The c h a i r
in
the
no risk
position
in Fig.
10 may be used
(cf Fig.
2).
is,
10 may be
the
to
other.
aforegoing
If
used
on t h e
pressure
claims.
illustrated
is
28 s e r v e s
section
two p o s i t i o n s
appended
The c h a i r
that
The
invention
The working
described
10 t h e r e
there
desirable
and a number of v a r i o u s
the
The
operative
position
is
the
10 r e l i e v e s
one of
the
castors
in many s i t u a t i o n s .
only
chair
it
10.
chair
or m a n u a l l y .
means
chair
in
in which
on the
Fig.
on the
used
rolling
invention
of
1),
castors
a semi-sedentary
force
10 is
34 on
when
10,
away on the
from r o l l i n g
and when
adequate
one example
as
castors
in
the
chair
chair
in
may be moved
the
accordance
indicated
position,
The embodiment
to
10 in
chair
end
lower
prevent
(Fig.
by a u t o m a t i c
position
36 legs
shifted
on the
exerted
At i t s
(not
support/floor
chair
work
sedentary
arm
the
directed
when the
extension
member
stop
pivot
horizontal
of the
22.
rod
36 assuming
a laterally
may be o p e r a t e d
support
2,
of
against
to
A person
10 may be moved e a s i l y ,
chair
user's
shown
moved a s i d e
no l a t e r a l
the
order
line
an e s s e n t i a l l y
movements
abut
to
arm 24 the
member 32 which
a support
in
the
to
of t h e
part
the
of
12 in the
post
on the
e.g.
arranged
rear
of a s u i t a b l e
by means
standing
position
use
position
is
is
is
the
The p i v o t a l
with
provided
the
at
position
pivoted
be p r o v i d e d
downwards
the
26.
limited
could
12 is
post
above
28 is
shaft
is
forwards/inwards
the
forward/inwards
section
the
formed
4)
Fig.
be p o s i t i o n e d
thereof.
shown),
30 (see
is
embodiments
one c h o o s e s
that
it
2 and
from
rolls
the
either
to
away
support
side
A work
1.
the
latter
chair
being
r a c t e r i z e d
into
operated
for
the
back-section
sedentary
and
position
chair
is
the
and
position,
mounting
a second
for
adapted
operative
wards/inwards-tilted
2.,A
type
(10),
tions,
the
shaft
extension
3.
the
that
type
the
be moved
second
for
as c l a i m e d
chair
a post
therein
chair
ting
work
that
in which
it
arm
(24)
is
(26)
of
said
of
said
A work
(12)
post
chair
the
is
adapted
is
the
section
said
1,
seat
operative
for
is
a for-
assumes
assumes
chair
being
an
of t h e
c h a r a c t e -
(20),
of
position
semi-sedentary
(28)
second
(28)
said work
working
posi-
in which
assume a p o s i t i o n
section
positioned
the
on the
equipped
position
working
the
of
in claim
1 or
2,
said
chair
c h a r a c t e r i z e d
(18),
a b u t m e n t with
semi-sedentary
to
as c l a i m e d
chair
operative
in claim
arm (24)
the
moun-
line
of
being
of
(12).
castors
into
back
second
arranged
back
mounting
wherein
in which
postions,
working
vertical
2),
(Fig.
position
support
in
comprising
(10)
to
position
an e s s e n t i a l l y
and the
position.
operative
adap-
assumes
back-section
position
is
a rearwards/outwards-tilted
operative
horizontal
comprising
r i z e d
(28)
it
assumes
semi-sedentary
the
position
essentially
section
back
into
arm (24)
first
to be
arranged
wherein
1),
(Fig.
in which
positions,
is
(10)
(28),
c h a -
one arm (24),
chair
position
operative
working
the
section
and a back
least
on at
that
therein,
a first
ted
mounted
pivotally
(20)
a seat
comprising
with
a support
support
said
chair,
positions.
(34),
member
e.g.
in which
the
said
(32)
therein
arranged
floor,
chair
to
in t h e
is
adapted