Europaisches P a t e n t a m t
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»
European Patent Office
00 Publication number:
Office europeen des brevets
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207
7 6 0
A2
E U R O P E A N PATENT A P P L I C A T I O N
(*0 Application number: 86305014.2
© into.4: E 05 C 1 7 / 3 2
© Date of filing: 27.06.86
(30) Priority: 28.06.85 NZ 212599
09.10.85 NZ 213772
(?j) Applicant: Davis, Ronald Perclval
77 Breaker Bay Road
Seatown Wellington(NZ)
© Date of publication of application :
07.01.87 Bulletin 87/2
^) Inventor: Davis, Ronald Percival
77 Breaker Bay Road
Seatown Wellington(NZ)
® Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE
5) Representative: Nelll,Alastalr William
Appleyard Lees &Co. 15 Clare Road
Halifax West Yorkshire HX1 2HY(GB)
(m) Afriction pivot joint for a window stay.
(§) A friction pivot joint between two components such as
two arms, or an arm and a frame or sash plate, of a window
stay, said joint comprising an aperture in a first of the components, an annular shoulder surrounding and projecting
from the periphery of said aperture, an aperture in said
second component whereby said second component is located about said shoulder, a bushing of a self-lubricating
and wear-resistant material interposed between said shoulder and said second component to prevent direct contact
therebetween, and a fixing means for fixing the joint and
applying friction creating pressure thereto extending
through the joint and fixed within or beneath said shoulder
or in said aperture.
§
o
Si
RG1
Croydon Printing Company Lid
My p r e s e n t
a
type
in
a window
friction
example,
suitable
joints
Zealand
employed
to
friction
stay,
an
arm
a
rivet
comprise
formed
one
in
joined
and
a
material
interposed
in
the
When
important
rivet,
If
that
the
during
nylon
the
same
Any
that
the
distal
such
joints
in
window
for
and
together
and/or
of
are
the
so
arms
at
arms
stays
formed
'leaned'
joint
will
not
the
joint
and
constructed
metal
improved
form
of
such
a
to
be
thus
as
it
to
contact
and
it
friction
pivot
rivet.
is
and
the
the
applies
properly
the
arms
and
material,
arms
and
thereto,
the
plate,
the
to
the
accurately
example,
a window
apertures
of
metal
provided
pressure
sash
plastics
of
joint
of
self-lubricating
parts
be
for
to
centered.
one
will
side
be
extend
in
the
is
magnified
is
important
minimise
difficulties.
An
pivot
Nos.
two
ends
prevent
misalignment
ends
through
a
in,
arms
or
suitable
a
off-centre
formed
plane.
of
typically
two
frame
a
of
to
are
moving
the
manufacture
couple
adjacent
or
joint
providing
inaccurately
at
the
formed
are
is
joint,
friction
a
described
196479
extends
of
holds
rivet
as
pivot
specification
and
stay
between
which
friction
a
therebetween
joins
use
are
movably
which
as
as
162919,
bushing
joint
such
of
each
such
for
patent
144922/146130/146886,
or
friction
a
stay.
pivot
New
0 2 0 7 7 6 0
comprises
particularly
joint
Such
invention
joint
is
such
0 2 0 7 7 6 0
in
described
wherein
202214/202755
Instead,
an
that
the
in
first
is
bushing
a
to
is
is
of
the
to
of
provide
strength
the
a
be
otherwise
a
significantly
thicker
simply
required
to
that
to
be
formed
at
least
is
It
provided.
arm
the
than
on
provide
the
be
of
a
strength
the
typically
arm
form
to
conveniently
order
factor
arm
one
which
arm
limiting
aperture
in
rather
this,
of
necessary
would
than
the
required
alone.
invention
My p r e s e n t
alternative
of
form
terms
my
friction
pivot
joint
arms,
or
an
stay,
said
arm
joint
provides
friction
invention
broad
In
is
required,
arm
thickness
and
end
arm
turret
this
that
necessary
thickness
substantial
the
the
down
is
In
the
so
the
of
bearing
in
present
arm
the
crimped
bearing.
enable
to
formed,
it
therein,
is
of
form
arm
self-lubricating
a
turret
is
one
other
at
through
joint
turret
integral
an
material
sufficient
turret
as
the
This
joint.
permanent
referred
and
arm
the
provided
the
between
interposed
is
formed
the
of
end
extends
turret
In
the
material
arm
arm.
other
the
in
of
end
the
from
extruded
eliminated.
is
rivet
joining
is
which
arm,
other
the
and
of
specification
patent
formed
aperture
'turret1
a
the
material
arm
through
Zealand
my New
No.
between
improved
an
pivot
two
said
or
sash
comprising
an
aperture
a
to
least
comprise
such
components
frame
and
at
joint.
be
may
or
of
plate
in
a
as
a
two
a window
first
of
the
components,
an
aperture,
said
an
second
of
bushing
pressure
within
fixing
adjustable
joint
friction
occurring
increase
so
may
of
in
in
the
comprise
a
the
said
be
may
a top
of
portion
like
a
arm
and
the
'displacement'.
that
the
friction
varied.
It
to
joint
may
formed
and
may
be
of
a
generally
form
a
creating
pressure
for
achieved
the
'button'.
friction
be
a
cylindrical
such
a
comprise
be
may
compensate
components
be
m
termed
invention
joint
means
may
formation,
conveniently
friction
fixed
the
a
generally
which
the
the
creating
and
separately
fixing
of
the
by
a
a
insert.
that
be
and
aperture.
relevant
however
joint
said
formed
to
is
second
joint
in
a
material
friction
the
or
is
from
said
applying
through
shoulder
shoulder,
therebetween,
referred
flange
pivot
and
said
whereby
wear-resistant
and
shoulder
material
which
means
and
conveniently
and
peripheral
the
said
preferred
formation
said
fitted
portion
joint
component
about
contact
extending
may
subsequently
The
the
of
is
second
shoulder
direct
preent
the
shoulder
body
said
beneath
or
shoulder
is
located
thereto
displacement
It
is
fixing
Preferably
The
component
to
for
means
said
self-lubricating
said
surrounding
in
between
component
shoulder
aperture
a
interposed
0 2 0 7 7 6 0
annular
desired
for
to
wear
example.
by
(if
within
adjust
any)
An
compression
of
the
0 2 0 7 7 6 0
the
further
close
the
pivot
joint
forms
of
friction
illustrated
in
the
Preferred
are
to
means
fixing
accompanying
joint.
of
invention
the
drawings,
by
of
way
wherein:
example,
is
1
form
friction
a
friction
pivot
with
but
together
is
the
2
form
friction
a
pivot
joint
first
not
thereof
of
fixing
of
the
being
joint,
first
the
1 after
Fig.
preferred
comprise
components
view
of
a
does
to
prior
cross-sectional
Fig.
of
which
joint,
adjustment,
assembled
view
cross-sectional
Fig.
preferred
of
fixing
the
and
joint,
is
Fig.
3
form
of
view
cross-sectional
a
friction
of
which
pivot
joint
forms
of
joint
such
as
a frame
a
second
preferred
friction
comprises
adjustment.
the
In
a
first
component
of
end
such
in
preferred
as
the
3 and
first
a
first
an
periphery
forms
arm
an
of
of
the
the
displacement
of
sash
or
at
2.
components
1,
and
an
and
aperture
as
shown.
In
arm
material
shoulder
in
plate
An a p e r t u r e
surrounds
annular
a portion
A second
1.
at
shoulder
the
joint
indicated
indicated
is
annular
of
is
arm
illustrated,
the
3 is
annular
projects
the
the
component
is
formed
shoulder
from
preferred
formed
forming
or
of
of
by
the
the
0 2 0 7 7 6 0
in
aperture
be
referred
in
the
the
to
located
plastics
extends
3 to
pressure
thereto.
a
button,
radially
shown,
formation
or
of
a
which
by
crimping
1
to
that
rim
in
5c
of
friction
extent
The
preferred
2.
5
the
The
an
engaged
button
5c
creating
the
is
the
the
the
4 as
and
the
shoulder
beneath
the
shoulder
shown
5b
lower
enlarged
into
which
cylindrical
portion
beneath
to
generally
bushing
position
body
creating
formation
join
engaged
from
comprises
the
portion
is
like
Fig.
which
2 via
joint
the
extending
like
and
referred
a generally
through
which
the
or
preferably
engagement
the
and
5a
flange
of
beneath
5,
The
the
fixing
means
portion
5b
there
suitable
friction
apply
component
portion
for
the
is
so
effected
pressure
to
be
applied
of
and
to
Fig.
the
3.
The
of
crimping
to
as
in
peripheral
shoulder
joint
thereof
the
cause
joint
to
desired.
forms
of
joint
described
is
4 is
that
so
other
or
fixed
fixing
top
extends
shown
part
said
second
body
3
rim
is
and
sleeve
therebetween.
nylon
joint
joint
2,
formed
self-lubricating
means'
and
is
thus
component
or
1 and
A 'fixing
the
second
contact
as
a peripheral
displacement
button
such
The
the
over
and
fix
the
suitable
3 may
aperture
A bushing
metal
a
comprises
and
extends
to
of
the
through
3.
shoulder
An
components
material
shoulder
as
the
material.
the
2 whereby
shoulder
formed
wear-resistent
and
displacement.
metal
or
is
4
bushing
the
between
direct
no
a
component
about
interposed
is
as
second
1,
component
may
be
assembled
6
0 2 0 7 7 6 0
relative
with
of
degree
arms
3.
shoulder
effect
centering
button
to
with
it
thickness
the
is
material
required
limiting
factor
With
integral
the
is
this
for
alone,
second
friction
is
of
arm
In
purpose.
the
typically
thicker
not
to
otherwise
strength
required
of
the
it
joint
mounlded
insert
a
required.
arm
would
manufacture
be
is
necessary
than
arm
the
bushing
form
preferred
adjustable
between
interposed
fastener
phantom
such
of
one
adjustment
the
as
outline.
fixing
a
The
form
the
onto
or
a part
friction
of
Fig.
3 is
friction
indicated
cap
means
screw,
in
shown
joint
includes
and
is
in
amount
bearing
of
A friction
shown
that
thickness
adjustment.
threaded
so
the
it
a
material
purposes
provide
the
arm
of
arms
2.
component
The
to
from
formed
of
As
dimension
large
extrusion
bearing
that
preferred
a
that
so
eliminated.
such
the
simply
required
of
integral
a significantly
provide
be
for
like
the
or
to
the
for
possible
of
by w a y
button
the
substantially
integrally
the
on
not
'extrusion'
by
with
case
be
of
as
by v i r t u e
inserted
suitably
is
such
components
centre
It
required
accurate
another
one
is
5
are
not
be
to
manufacture
during
may
of
connected
the
through
3 need
height-wise
as
button
centering
shoulder
lesser
The
thereof.
'lean'
problems
the
centred
extending
pin
a
and
the
maintaining
particular
The
joint.
located
are
the
of
the
of
in
and
precision
centering
still
while
ease
button
of
at
10
5 and
which
adjustment
is
cap
a
0 2 0 7 7 6 0
includes
the
peripheral
button
also
5 and
hollow
moderate
which
a
friction
shown,
if
frame
and
the
the
screwed
there
is
joint
the
is
stay
If
the
required
the
friction
down
onto
the
fixing
providing
pressure
the
joint
generally.
the
friction
from
•escaping1
In
variation
a
screw
the
aperture
in
extra
or
bulk
height
of
the
the
joint.
5mm f o r
or
sash
rim
the
be
which
is
of
the
tightened
will
be
forced
friction
4 and
bushing
portion
10b
shoulder
material
bushing
screw
friction
the
to
on
4a
of
of
the
from
In
example
of
joint
adjustment
of
the
provided
component
cap
form
preferred
friction
threads
adjustment
to
10
cap
fixing
further
peripheral
second
enabling
into
friction
that
applied
prevent
the
threaded
The
be
5 so
of
a window
a
10
cap
form
a
generally
the
can
in
shown,
joint.
be
may
of
of
fastener
to
the
of
may
into
this
to
frame
10
cap
in
as
be
fastener
button
The
act
the
adjustement
will
4a
over
fixing
extends
4 may
may
adjustment
adjustement
4 will
to
the
5 as
mounted
fastener
screw
that
is
joint
of
which
bushing
extends
The
button
fixing
secured
into.
10b
enlargement
screw
5a
shown.
as
The
annular
such
bushing
the
friction
sash
whereby
of
which
portion
portion
fit.
an
top
shaped
locating
10a
portion
the
is
interior
include
joint
of
edge
include
the
rim
peripheral
a
10
a
the
side
joint
walls
1.
does
not
joint
only
on
the
lmm
add
having
extra
significant
a total
is
depth
added.
0 2 0 7 7 6 0
The
embodiments
will
to
the
describes
foregoing
be
be
to
incorporated
following
invention
Alterations
thereof.
obvious
my
those
within
claims.
skilled
the
including
and
in
scope
preferred
modifications
the
art
hereof,
are
as
as
intended
defined
in
0 2 0 7 7 6 0
1.
A friction
pivot
two
arms,
or
window
stay,
Baid
as
the
of
an
from
projecting
in
aperture
is
component
between
said
prevent
direct
and
joint
within
or
2.
A friction
the
engaged
beneath
top
portion
part
of
3.
the
generally
portion
is
said
said
and
said
claimed
fixing
means
comprises
shoulder
portion
body
pivot
body
in
or
a
radially
said
over
joint
as
claimed
portion
of
said
cylindrical
a generally
formation
and
peripheral
means
creating
and
fixed
aperture.
in
said
a
to
fixing
said
as
of
interposed
joint
in
or
joint
said
of
the
pivot
said
a
friction
through
and
second
component
and
first
a
bushing
material
second
shoulder
a
a
an
said
shoulder,
applying
in
aperture,
whereby
therebetween,
and
p l a t e , of
surrounding
said
component
generally
said
the
of
extending
A friction
wherein
a
said
aperture
extending
beneath
wherein
an
wear-resistant
contact
thereto
pressure
comprising
about
shoulder
the
fixing
sash
shoulder
such
components
or
periphery
located
two
frame
a
annular
an
second
self-lubricating
for
joint
the
said
and
arm
components,
between
joint
claim
body
1,
portion
aperture
and
from
upper
the
second
in
fixing
the
flange
component.
claim
2,
means
said
a
is
of
top
like
formation.
4.
A friction
claims
2 and
3,
pivot
wherein
joint
the
as
claimed
in
said
bushing
extends
either
of
between
10
0 2 0 7 7 6 0
first
said
aperture
said
said
in
said
of
surface
second
and
said
fixing
A friction
claims
2 to
fixing
means
of
lower
the
the
A friction
7.
wherein
said
the
the
wherein
and
adapted
effected
joint
as
wherein
compression
of
of
any
is
friction
an
said
one
increase
means
fixing
fixing
means
comprises
and
same
friction
be
of
the
6,
interior
fastener
anchored
of
adjustment
tightening
claim
a hollow
a threaded
comprises
through
in
claimed
said
therein
or
joint
may
the
threaded
fastener.
8.
A friction
including
said
fixing
a
pivot
friction
means
and
in
joint.
as
screw
shoulder.
in
that
joint
whereby
by
by
joint
such
being
engagement
by
said
claimed
said
rim
peripheral
beneath
pivot
joint
extend
to
therebeneath
be
the
close
further
part
arrangement
achieved
is
friction
to
claims,
preceding
adjustable
rim
said
of
fixed
is
means
fixing
pivot
lower
of
one
any
portion
body
enlarged
an
peripheral
A friction
6.
said
the
comprises
said
and
component
in
claimed
as
joint
wherein
4,
second
said
external
the
portion.
pivot
wherein
and
said
top
means
and
component
and
shoulder,
5 .
part
first
of
surface
internal
the
components,
joint
adjustment
said
as
claimed
cap
threaded
in
claim
interposed
fastener
9,
between
and
0 2 0 7 7 6 0
including
a peripheral
peripheral
to
assist
in
said
said
portion
extending
means
a
and
friction
A friction
herein
with
herein
with
pivot
of
joint
as
pivot
claimed
hollow
fixing
means
bushing
during
in
claim
comprises
interior
rim
of
a
8,
locating
said
fixing
thereof
portion
is
formation.
joint
to
said
cap
peripheral
like
said
the
over
fastener.
said
Figs.
substantially
1 and
2 of
as
described
the
.
pivot
reference
joint
to
Fig.
substantially
3 of
as
described
the
accompanying
one
or
.
A window
joints
claims.
material
the
drawings
A friction
12.
of
adjustment
reference
11.
drawings
portion
into
flange
10.
accompanying
top
pivot
wherein
general
extending
threaded
A friction
wherein
of
the
portion
containing
of
tightening
9.
of
edge
rim
as
stay
incorporating
claimed
in
any
one
of
the
more
friction
preceding
0 2 0 7 7 6 0
3
O