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Патент USA US2116846

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May 10, 1938.
E. K. PlLcHER
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2,1 16,846
MOLDING STRIP
Filed July 11. 1936
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INVENTOR.
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Patented May'io, 193:3`
_ »2,116,845
PATENT
OFFICE
2,116,846
" " UNITED ' STATESA
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`HOLDING STRIP
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4 Edward K. Pilcher, Detroit, Mich., assignor to
‘Bohn Aluminum & Brass Corporation, Detroit,
Mich., a corporation of Michigan
Application July l1, 1936, Serial No. 90,245
l2 Claims. (Cl. 20-74)
malleable character of the metal forming the body
to conceal a line of fastening devices, such as nails
or the like, and to present a smooth ñnished ap
III and cover strip I I form a tight frictional fit
that holds the strip firmly in place.
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To secure a still tighter tlt of the cover strip
pearance.
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The improved> molding is particularly adapted
walls I2 of the channel or on the walls Il of the
for such a molding arises.
Achief object of the invention is to provide an
all-metal molding which can be applied with a
minimum of labor, which formsv a permanent
weather-tight joint, and which has a pleasing
cover strip, or on both walls I2 and I4, the latter
form being illustrated in Fig. l. These iins I5
being very small are easily deformable and they
do not interfere with tapping the cover strip into
place by light blows of a hammer. During this
operation the ñns I5 are partly deformed and
< 'I'hese and other objects and advantages of the
partly sheared away, thus compensating for any
invention will become apparent as the description
irregularities in the engaging walls I2 and Il and l5
forming a close weather-tight joint between said
proceeds.
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While preferred- forms of the invention are dis
' closed> for purposes of illustration, it should be
understood that various changes may be made
20 without departing from the- spirit of the inven
tion as herein set forth and claimed.
In the drawing:
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Fig. 1 is a cross section through a body strip
embodying the invention.
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Fig. 2 is a. cross section through a cover` strip
adapted to cooperate with the body strip of Fig. 1.
Fig. 3 is across section showing the parts in
installed position.
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Fig. 4 is a perspective of the molding shown in
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within the channel. the preferred form ‘of the
invention provides deformable ñns I5 on the side
to covering the joints of motor vehicle bodies,
but quite obviously it can be used wherever need
ornamental appearance.
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’I'his invention relates to molding strips adapted
Fig.'2.
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Fig. 5 is a cross section showing a modiñed form
walls.
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The bottom wall I8 of body I0 is formed with a '
central groove II. The moldings are usually fas
tened in place by nails and the groove I6 forms
a central line for aligning the nails and sum
I ciently weakens the' bottom wall of the channel
to permit the nails to be easily driven through
wherever desired.
This arrangement is more ad
vantageous than punching holes for the nails, 25
since it is less expensive to produce and it permits
placing a nail wherever desired in`order to catch
a supporting member or to space the nails more
closely together when bending ‘the molding side
`wise around a curve.
30
Extendingl laterally from body Ill are wings I'l,
the upper surfaces of which are curved on an>
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The molding of the invention has for its prin--` A arc struck from below the body and which ter
cipal parts a body III and a cover strip I I. The minate in lower edges I8 without curving inwardly
toward the body. 'I'he edges I8 are relatively 35
' body has a channel formed with vertical side walls
I2 and a bottom wall I3. . 'I'he cover strip is of sharp and project downwardly below the level of
such a size `that its vertical side walls I l have a ` the bottom‘wall I 8 of body I0, as clearly shown
of the invention.
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close frictional fit with the walls I2 of the body.
The body and cover strip are preferably formed
by extrusion from some relatively soft metal, such
as an alloy oflaluminum‘. The extrusion processA
produces strips formed of “worked-metal”, with
in Fig. 1. The undersides of wings I'I maybe
given any suitable contour to lightenthe molding
and save metal.
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The `manner of attaching the strip is clearly ~
illustrated in Fig. 2 where it is used to cover an
a grain structure running lengthwise of the strip, « overlapping joint of two pieces of fabric 20 and
thus permitting ready bending of the strip in any
" direction to conform to the contour of the" struc
ture to which the molding is being attached. The
extrusion process also produces minute ridges
running longitudinally of the strips as the fresult
of unavoidable irregularities of the extrusion dies.
These extrusion ridges are shown on an exag
gerated scale in the drawing. After the body I 0
has been mounted in place, in a manner that will
be explained shortly, the cover stripis pressed
into the channel of the body I0, and these minute
55 extrusion ridges together with the relatively soft
2| on a support member 22. 'I'he molding strip is 45
aligned with its channel directly above the over
lapping joint and it is then secured in place by
driving nails or other suitable fastening elements
23 into groove I6. As the body is nailed down,
the >lower edges I8 are pressed firmly into the fab 50
ric and hold it tightly againstÍ the support 22,
forming a«secure weather-tight joint. Due to
the fact that the edges I8 are at the outer ex
tremities of the molding, ’the upper curved sur
face of wings I1 form obtuse angles with the 55
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2,116,846
fabric, avoiding any acute angle that would have
to be filled inwith plastic cement.
During the operation of nailing the body down,
5. A molding comprising a body of solid metal
having a channel with vertical side walls formed
therein, the bottom of the channel 4being formed
the pressure of edges I8 against the support 22
with a central groove forming a weakened por
serves not only to form a secure joint with the
fabric, but a leverage action causes, the upper
ends of wings I'I to move the upper corners of
tion adapted to be pierced by nails,> a metal cover
strip fitting in the channel, and cooperating sur
faces on the body and cover strip. for holding
the walls I2 of the channel slightly towards each - the cover strip out of contact with the nails.
6. A device as recited in claim 5 in _which de
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other.
After the body I0 has been nailed in place the
cover strip II is placed in the channel and driven
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home, deforming the fins I5 as previously ex
plained and_wedging the upper corners of the
walls I2 back to vertical position. When the
parts have reached their final assembled posi
tions the walls Il of the cover strip have made
a perfect lapped-in seal against the walls I2 of
formable longitudinal ?ns are carried. by the 10
vertical walls of the channel.
7. A device as recited in claim 5 in which de
formable longitudinal iins are carried by the
side walls of th'e cover strip.
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8. A device as recited in claim 5 in Awhich de
formable longitudinal iins are carried by the
vertical walls'of the channel and by the side
the channel, and the supporting pressure of the walls of the cover strip.
9. A molding comprising a body of solid malle
wings I'I holds them resiliently in place against
able metal having a channel with vertical side 20
20 any possible loosening effects of expansion, vi
Vwalls formed therein, a metal cover strip hav
bration. etc.
The body III and cover strip II carry cooper
ating surfaces which hold the central part of
the bottom wall 24 of the cover strip spaced
25 above the bottom wall I3 of the channel in order
to ‘provide clearance for the heads of the nails.
In the form of the invention illustrated in Figs.
1 and 2 this object is achieved by giving bottom
wall 24 of the cover strip an upwardly curved
contour forming shoulders 25 at the side of wall
2l which engage with the bottom I3 of the chan
’ nel. In the form illustrated in Fig. 4 shoulders
26 are formed on the side walls of the channel.
'I'hese parts are so designed as to predetermine
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the ñnal position ofthe cover strip, which in
the form shown has its upper surface flush with
the upper surface of body I0.
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In the form illustrated in Figs. 1 to 3 the outer
surface of the molding has a semi-circular con
40 tour, but it should be understood that this outer
surface can be given any desired ornamental or
utilitarian shape. For example, as shown in
Fig. 4 the molding is mounted in a vertical po
sition .on the side of a support 21 and the lower
part of the molding carries a drip trough 28.
'I'hose skilled >in the art will appreciate that
this molding can be economically manufactured
and installed, and that its all-metal construction
furnishes a permanent coveringv that needs no
50
ing vertical side walls frictionally engaging with -
the side walls of the channel, at Yleast -one side
of said body carrying a laterally extending wing
the upper surface of which curves downwardly 25
and outwardly from the body and which termi
nates in a relatively sharp edge lying below the
bottom of said body.
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l0. A device as recited in claim 9 in' which one
of said wings extends from each side of said body 30
respectively.
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11. In combination, a support,- two pieces of
‘covering material forming an overlapping joint
on said support, a molding comprising a metal
body overlying said joint, said body being formed 35
with a channel having vertical side walls, the
bottom wall of said'- channel beingformed with
a groove. fastening devices extending into said
groove and through the bottom wall of the chan- "
nel into the support, a metal cover strip fitting 40
`in said channel and being held in place solely
by frictional engagement with the side walls Vof
the channel, a wing"extending outwardly and
downwardly from each side of said body respec
tively and terminating in a relativelysharp edge 45
pressingthe fabric firmly against the support,
the angle between the outer surface of the wing
and the fabric being an obtuse angle,-the'pressure of the sharp edges of the wings against the ~
subsequent servicing.
support causing the base of the wings to -hold 50
the sides of the channel firmly against the cover
1. A molding comprising a body formed of ex
truded metal with a channel therein having
strip.
vertical side walls with minute extrusion ridges
extending longitudinally of the molding, a cover
strip formed of extruded metal of ‘a shape to fit
closely between the side walls of the‘body, the
cover strip having vertical side walls with minute
extrusion ridges extending longitudinally of the
molding and adapted to engage the ridges of the
channel walls to assist in holding the cover strip
strip formed of aluminum alloy, the body being
l in place in the channel.
2. A- device as recited in claim 1 in which de
formable longitudinal fins are carried by the
vertical walls of the channel. .
3. A device as recited in claim 1 in which de
formable longitudinal fins are carried by the
side walls of the cover strip.
4. A device as recited in claim 1 in which de
formable longitudinal ilns are carried by the
vertical walls of the channel and by the side
- walls of the cover strip.
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12. A molding comprising a body and a cover
extruded with laterally extending wings, with a
channel having vertical side walls, and a groove
formed in its bottom wall, and with deformable
longitudinal ñns on the side walls of the channel,
the cover strip being extruded with vertical side
walls adapted to frictionally engage the side 60
walls of the channel and carrying deformable
longitudinal llns, cooperating `surfaces on the
body and cover strip for holding the central part
of the cover strip spaced from the bottom wall
of the channel, each of said wings extending out
wardly and downwardly from the upper Apart of
the body and terminating in a relatively sharp
corner located below the bottom of the body, the
underside of each wing being concave.
EDWARD K. PILCHER.
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