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Патент USA US3034760

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May 15, 1962
|_. PAZMANY
3,034,752
FLEXIBLE SUPPORT MEMBER
Filed Dec. 31, 1959
FIG. /
FIG. 3
INVENTOR.
LADISLAO PAZMANY
ATTORNEYS
United States Patent 0
11
C6
1
2
thereof may be readily varied in accordance with the re
3,034,752
Ladislao Pazrnauy, San Diego, Calif, assignor to General
quirements of the particular installation.
FLEXIBLE SUFPORT MEMBER
Another object of this invention is to provide a ?exible
support member adapted to reduce wear on the carrier
1 Dynamics Corporation, a corporation of Delaware
duct supported thereby.
Filed Dec. 31, 1959, Ser. No. 863,214
5 Claims. (?ll. Z48—-54)
Yet another object of this invention is to provide a
?exible support member which serves to reinforce the
The present invention relates generally to a ?exible sup—
port member and more particularly to a flem'ble support
member secured to a panel or bulkhead ‘around an open
ing therein for ?exibly supporting tubing, ducting and
conduit passing therethrough.
In the construction of aircraft, various systems involv
ing the use of tubing, ducting, conduit and other ?uid
carriers provide means to conduct pressure and ventilat
ing air, hydraulic ?uids, fuels, and other ?uids throughout
3,?34,752
Patented May 15, 1962
opening in the structure through which the carrier duct
passes.
10
Another object of this invention is to provide a ?exible
support member adapted to compensate for minor mis~
alignment discrepancies between carrier duct openings in
a series of adjacent supporting panels or structures.
Other objects and features of the present invention will
15 be readily apparent to those skilled in the art from the
following speci?cation and appended drawings wherein is
the body and/ or wings of the aircraft. Usually the rout
illustrated a preferred form of the invention, and in
ing of these systems is such that a maximum of unob
which:
structed space is made available for the passengers and
FIGURE 1 is an elevational view of the ?exible sup
cargo. Since the wings usually serve as fuel tanks, the 20 port member of the present invention shown secured to
?uid carriers for operation of the various systems are
a panel and supporting a duct.
more conveniently located in the leading and trailing
FIGURE 2 is a cross sectional view taken on the line
edges thereof to avoid the necessity for passing through
II—II of FIGURE 1.
the fuel tanks. Bulkheads and panels in the fuselage
FIGURE 3 is an elevational view similar to FIGURE 1
body and ribs and frames in the wing must be provided 25 showing an oval shaped ?exible support member for use
with openings in the webs thereof in ‘order to permit
in supporting carrier ducts at an angle with respect to the
passage of the ?uid carriers there-through. Although
supporting structure, and
these carriers or ducts are frequently lightly constructed,
FIGURE 4 is a cross-sectional view taken on the line
proper and adequate support is desirable at spaced inter
IV——-IV of FIGURE 3 and further showing an angularly
vals along the length thereof in order to prevent undue
disposed carrier duct positioned in the ?exible support
vibration. Such vibration as caused by the engines may
member of the present invention.
possibly result in a failure due to fatigue or otherwise
Referring noW to the drawings a ?exible support mem
damage the surrounding structure located within close
ber is generally indicated in its entirety by the numeral 10‘.
proximity to the carrier. Moreover without such support,
A collar ll is preferably fabricated from a light weight
the openings in the ribs, frames, bulkheads, panels, etc.,
4
metal such as aluminum and is of a general outline con
through which the carriers pass would necessarily need
?guration corresponding to the cross-sectional shape of
be of a substantially larger diameter than the diameter
the duct supported thereby as it passes. through the plane
of the carrier to provide su?icient vibration clearance
of the collar. As shown in FIGURE 1, this shape is cir
therearound. Obviously, openings in the panel web must
cular while in FIGURE 3 the shape is oval to permit pas
be reinforced, particularly where the Web is adapted for 40 sage of a circular duct through the ?exible support mem
transmitting loads to other structural members. The
ber 10 at an angle. It will be apparent that the particu
problem involved in reinforcing the carrier openings in
lar outline shape of collar Ill depends upon the shape of
the webs is considerably magni?ed by the size and num
the support panel opening provided and that where ducts
ber of openings. It is therefore desirable to maintain
of various other cross-sectional con?gurations are to be
these openings to a diameter as small as is practical.
supported or angular insertions through the support panel
Where the carrier spans several bays bordered by panels
are necessary, the outline of collar 11 may correspond
ingly vary.
or bulkheads, the Web openings should be ‘closely aligned
with one another whereby the diameter or size of the
The attaching ?ange 12 of collar 11 is substantially a
openings may be held to a minimum dimension.
?at annular plate. An opening 13 is formed in ?ange 12
Rigid connections such as collars secured to the duct 50 by an extruded portion 14 having a radially extending lip
and panel or bulkhead web, although providing the re
15 lying in a plane parallel with ?ange l2 and spaced
quired support and reinforcement around the opening,
with respect thereto by extruded portion 14-. A plurality
are frequently found to be unsatisfactory and expensive.
of circumferentially spaced holes 16 border about open
Slight irregularities in manufacturing tolerances are great
ing 13 extending through lip 15 ‘and ?ange '12.. A ?exible
ly magni?ed over an extended length of carrier ducting 55 element 117 is constructed in the form of a coil spring
which results in considerable di?iculty in the alignment
and is laced through holes 16 in ?ange 12 and lip‘ 15 of
of the carrier with the web openings upon installation
collar 11. Flexible element 17 is assembled to collar ill
thereof in a wing or fuselage body.
by threading or lacing an end 18 thereof through one of
Accordingly, an object of the present invention is the
the pairs of holes 16 in lip 15 and ?ange 112 and there—
provision of a ?exible support member to effectively 60 after rotating or twisting to effect engagement with the
dampen vibration forces normally transmitted from the
remaining holes. Thus it will be seen that ?exible element
supporting structure to the carrier duct supported thereby.
17 is stabilized and restrained against twisting by en
Another object of this invention is the provision of
gagement with the individual pairs of holes 16 in ?ange
a ?exible support member to accommodate carrier ducts
l2 and the spaced lip 15 of collar 11. Flexible element
having minor irregularities or external surface deforma 65 17 is preferably coated with a wear resistant material
tions.
such as plastic or rubber (not shown). A duct 19 rests
A further object of this invention is to provide a ?exible
on the individual convolutions of ?exible element 17 and
support member which may be fabricated in shapes to
is protected against cha?ng or gouging by the wear resist
accommodate carrier ducts of various cross-sectional con
?gurations.
A still further object of this invention is to provide a
?exible support member wherein the ?exibility property
ant coating. This coating further serves to prevent Wear
70 of the ?exible element 17 in addition to preventing the
formation of rust and corrosion.
As shown in FIGURES 1 and 2, ?exible support mem
3,034,752
‘
4
3
her 10 is secured to a panel 20 as by rivets 21. Panel 20
is representative of a typical ‘bulkhead, frame, rib, etc. as
employed in the construction of aircraft. Since panel 20
is usually a ?xed portion of the ‘aircraft structure such as
a rib in the leading or trailing edge of a wing, duct 19 is
3. A ?exible support member comprising a collar, the
inner edge of said collar being U-shaped, said U-shaped
edge having a plurality of holes spaced across and through
said U-shaped edge, and a ?exible element laced through
said holes and extending radially inwardly of said edge,
merely saddled or ?exibly supported at particular points
the portion of said ?exible element extending inwardly
along its length where it intersects the ribs. This con
struction permits duct 19 to ‘?oat or move independently
of said edge effecting a plurality of radially ?exible sup
porting surfaces.
4. A ?exible support member for supporting a conduit
as during ?ight maneuvers, will not be wholly transmitted 10 through a panel comprising a panel with an opening
therethrough, said panel opening having a U-shaped edge
from the rib to duct 19. Obviously a certain degree of
portion with a plurality of holes spaced across and through
stiffness or rigidity is desirable at particular points of rib
said U~shaped edge portion, and a coil spring means being
support for duct 19‘ in order to .prevent localized collapse
of the wing whereby the ?exing ‘or bending of the wing,
of ‘?exible element 17. In anticipation of such, ?exible
element 17 may be furnished in various gages or wire
sizes as required to effect the desired degree of rigidity.
Moreover additional rigidity may be obtained by increas
ing the number of holes 16 and correspondingly increas
ing the number of convolutions in ?exible element 17.
While certain preferred embodiments of the invention
have been speci?cally disclosed, it is understood that the
invention is not limited thereto as many variations will be
readily apparent to those skilled in the art and the inven
laced through said holes and extending radially into said
opening for detachably engaging said conduit around the
periphery thereof, the portion of said coil spring extend
ing into said opening effecting a plurality of radially ?ex
ible conduit support means.
5. A ?exible support member for supporting a conduit
through a panel comprising a panel with an opening
therethrough, said panel opening having a U-shaped edge
with a plurality of pairs of holes through said edge, re
spective holes in each of said pairs of holes being spaced
across said U-shaped edge in a direction substantially
tion is to be given its broadest possible interpretation
within the terms of the following claims.
25 normal to said panel, and ?exible means being supported
I claim:
v1. A ?exible support member comprising a collar por
tion, an extruded portion formed ‘from said collar por
tion, said extruded portion de?ning an opening, said col
lar portion and said extruded portion having circumfer
entially spaced pairs of holes bordering around said open
ing, and a ?exible element laced through each of said
pairs of holes and extending into said opening, the por
tion of said ?exible elements extending into said opening
effecting a plurality of radially ?exible supporting sur
faces.
2. A ?exible support member comprising a collar, the
inner edge of said collar being U-shaped, said U-shaped
edge'having a plurality of pairs of holes therethrough,
respective holes in each of said, pairs of holes being spaced 40
by said pairs of holes and extending into said opening
for detachably supporting a conduit in said opening, the
portion of said ?exible means extending into said opening
effecting a plurality of radially ?exible conduit support
means.
References Cited in the ?le of this patent
UNITED STATES PATENTS
220,049
623,967
660,631
1,043,530
1,952,695
2,589,780
in a direction substantially normal to said edge, and a
?exible element laced through said pairs of holes and ex
tending inwardly of said edge, the portion of said ?exible
element extending inwardlyof said edge effecting a plu
45
rality of radially ?exible supporting surfaces.
Atwood _____________ __ Sept. 30,
Barnett ______________ __ May 2,
Edwards _____________ __ Oct. 30,
Millar _______________ __ Nov. 5,
Webb ______________ __ Mar. 27,
Costello _____________ __ Mar. 18,
1879
1899
1900
1912
1934
1952
FOREIGN PATENTS
21,437
Sweden ______________ __ Sept. 8, 1905
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