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Патент USA US3036551

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May 29, 1962
w. GREGOR
3,036,540
DISPLACEABLE FIN FOR VEHICLES
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May 29, 1962
w. GREGOR
3,036,540
DISPLACEABLE FIN FOR VEHICLES
Filed Jan. 14, 1960
2 Sheets-Sheet 2
1/1 van/or‘:
W/LHELM GREGOR
W
United States atent
?fice
1
3,936,540
Patented May 29, 1962
2
which comprises a hollow hub mounted on the pivot studs
3,036,540
DISPLACEABLE FIN FOR VEHICLES
Wilhelm Gregor, Achim, Bezirk Bremen, Germany, as
signor to Licentia Patent-Verwaltungs G.m.b.H., Frank
furt am Main, Germany
Filed Jan. 14, 1960, Ser. No. 2,513
Claims priority, application Germany Jan. 29, 1959
5 Claims. (Cl. 114-126)
transversely relative to the longitudinal extension of the
studs; the hollow hub supports the ?n and receives a shaft
?xedly connected with the ?n at one end, and connected
at its opposite, outer end with the rotary part of the ?n
tilting drive means. The pivot studs and hollow hub and
eventually also the rotary part of the ?n tilting drive means
and the shaft within the hollow hub may consist of one
integral piece of material. Furthermore, the hollow hub
The present invention relates to rudder ?ns of vehicles 10 and the rotary part of the ?n pivoting drive means can be
such as ships, airplanes or the like. More in particular,
disposed at opposite ends of the pivot studs.
the present invention relates to a new and useful rudder
The invention will be better understood upon the fol
?n for vehicles such as ships or airplanes and the like
lowing description of the accompanying drawings, wherein
which is adapted for being pivoted into and out of the
FIGURE 1 is a longitudinally sectional view of the
body of the vehicle and which is tiltable with respect to 15 horizontally disposed ?n of the invention;
the direction of flow of the medium through which the
FIGURES 2a, 2b, 2c and 2d are cross-sectional views
vehicle passes.
taken along lines 2a, 2b, 2c and 2d, respectively in FIG. 1.
It is known in the art to provide rudder ?ns capable of
FIGURE 3 is a plan view of the ?n of the invention.
displacement in two different ways, a ?rst, pivoting dis
More in detail, FIGURE 1 shows the vertical pivot
placement moving the rudder ?ns into or out of the body
studs 1, 2, which are pivotally positioned in bearings 3
of the vehicle so as to assume its inoperative or operative
and 4 secured to body 2t) of the vehicle. A casing 18 is
position, respectively, and another, tilting displacement,
mounted on bearing 3; elements 3, 4 and 18 are illustrated
starting from the operative position of the rudder fin, so as
as being stationary with respect to body 20. As also
to assume positions at various angles of inclination rela
shown in the drawings, the pivot studs 1 and 2 can form
tive to the direction of ?ow of the medium (e.g. air or
a portion of an integral piece of material also constituting
water) through which the vehicle passes.
the horizontally disposed hollow conical hub 5. The hub
In most of the known displaceable rudder ?ns of this
5 is provided with ‘bearings 6 and '7 on which ?n 8 is rotat
type the tilting and pivoting movements are effected by
ably positioned. A shaft 11 extends interiorly through
mechanical driving and transmission means comprising a
hollow hub 5, the outermost left-hand end of which is
plurality of gears, Worm gear couplings and the like which
connected with the rotary wing portion of the flu tilting
require considerable space and are complicated and heavy.
drive means 12—13 for tilting the ?n relative to the di
In other constructions the ?ns are hydraulically operated.
rection of ?ow of the medium through which the vehicle
However, the combination of a rotary with a tilting move
is passing. At its opposite right-hand end the shaft '11 is
ment is rather di?icult to effect hydraulically and this
connected with ?n 8 by means of a wedge 9 and screw 10.
arrangement is heavy and susceptible to disturbance.
The casing 13 of the ?n tilting drive is ?xedly mounted on
It has, therefore, already been proposed to provide
the integral piece constituting the hub 5 and the vertical
rudder ?ns positioned in the body of vehicles such as air
pivot studs 1, ‘2, and houses the rotary wing portion 12.
planes or vessels comprising a known rotary wing drive
Flexible conduits 15 and borings 16 are provided in pivot
and to position this drive and thus the rudder ?n on pivots
stud 1 for conveying the control pressure medium to the
which are ?xedly connected with the non-rotary or elon_
rotary wings 12. The distribution of the control pressure
gated portion of the rotary wing drive. While this ar
medium is effected by structure and in a manner known
rangement is far simpler and requires less space than the
per se and described, for example, in British patent speci
known constructions it suffers from the disadvantage of
?cation 477,779.
requiring adaptation to the considerable transverse forces
FIGS. 20 and 2d illustrate cross-sections along the lines
45
transmitted by the ?n proper to the wing drive, in order
2c and 2d in FIG. 1, respectively, and they show ring
to assure the operation of the latter under all pressure
channels 25 and 25’ communicating with lines 16 on the
conditions. This calls for particular structures adapted
one hand and with pressure chambers 24" via openings
to various vehicles operating under different conditions
'26 on the other hand, for rotatably driving shaft 11 rela
and results in an undesirably great weight and dimension
50 tive to casing 13 and the stationary part of rotary Wing
of the wing drive.
drive 12, in a manner known per se for rotary wing types.
With the foregoing in mind it is an object of the present
A further drive '17-—18 is provided for eifecting the
invention to provide a rudder ?n for vehicles such as
pivoting movement of the ?n 8 horizontally into and out
particularly ships, airplanes or the like, which is adapted
of the vehicle body, i.e. from the operative position into
for both pivoting and tilting movements and has a com
the inoperative position and vice versa. It comprises the
casing 18 ?xedly mounted on bearing 3 and housing the
paratively simple structure which requires comparatively
little space.
It is a further object of the present invention to provide
a rudder ?n for vehicles such as particularly ships, air
rotary wing portion 17.
planes or the like, which is adapted for both pivoting and
FIGS. 2a and 2b illustrate cross-sections of pivot drive
17, along lines 2a and 217 (FIG. 1). This pivot drive 17
is also of the rotary wing type and it is substantially simi
tilting movements and which can be used in a variety of
lar to the rotary wing drive 12. There are also provided
operating conditions without requiring particular adapta
ring channels 22 and 22’, respectively, communicating via
tion.
ducts 23 and 23' with pressure chamber 214. Reference
It is another object of the present invention to provide
numerals 21 and 21’ denote feeder lines for ring channels
a rudder ?n for vehicles such as particularly ships, air
22 and 22’, respectively.
planes or the like of the type comprising wing drive means, 65
The pivoting drive 17—18 returns the ?n 8 to the
wherein the latter are relieved from transverse forces ap
vehicle body by swinging pivot studs 1, 2, hub 5, the tilt
plied to the rudder ?n.
ing drive 1‘2-—13 and ?n 8 about the vertical longitu
These objects are achieved by the rudder ?n of the
dinal axis of pivot studs 1 and 2, with the ?n 8 retaining
present invention which can be pivoted about pivot studs
its
horizontal position illustrated in FIGURE 1 during the
70
and which can be tilted relative to the direction of ?ow
pivoting movement.
of the medium through which the vehicle is passing, and
The ?n 8 is tilted relative to the direction of flow of the
3,036,540
4
medium through which the vehicle is passing by means of
the longitudinal axis of said pivot studs and supporting
the ?n tilting drive 13.
said ?n, and a shaft interiorly extending through said
hollow hub, said shaft forming one integral piece of ma
terial with said rotary wing means in said tilting drive
The latter drive rotates shaft 11
about its axis, thereby tilting ?n 8 connected with shaft
11 via wedge and screw connections 9, 10, with the pivot
studs 1 and 2 and hub 5 remaining stationary during this
tilting movement.
means, being connected at one end with said rotary wing
means in said tilting drive means and at its opposite end
The transverse forces applied to ?n 8 are transmitted
with said ?n.
to hub 5 via the bearings 6 and 7, rotary Wing portion 12
4. A rudder ?n arrangement for vehicles comprising a
thus being relieved from these forces.
?n, pivoting drive means for causing a pivoting movement
It will be understood that this invention is susceptible 10 of said ?n into and out of the body of the vehicle, rotary
to modi?cation in order to adapt it to different usages and
wing means in said pivoting drive means, and tilting drive
conditions and, accordingly, it is desired to comprehend
means for causing a tilting movement of said ?n relative
such modi?cations within this invention as may fall within
to the direction of flow of the medium through which the
the scope of the appended claims.
vehicle is passing, rotary wing means in said tilting drive
What I claim is:
means, a plurality of pivot studs, a hollow hub connected
1. A rudder ?n arrangement for vehicles comprising a
with said pivot studs extending transversely relative to the
?n, pivoting drive means for causing a pivoting movement
longitudinal axis of said pivot studs and supporting said
of said ?n into and out of the body of the vehicle, rotary
fin, said hollow hub and said tilting drive means being
wing means in said pivoting drive means, and tilting drive
disposed at opposite sides of said pivot studs, and a shaft
means for causing a tilting movement of said ?n relative
interiorly extending through said hollow hub, said shaft
to the direction of ?ow of the medium through which the
vehicle is passing, rotary wing means in said tilting drive
being. connected at one end with said rotary wing means
in said tilting drive means and at its opposite end with
said ?n.
5. A rudder ?n arrangement for vehicles comprising a
?n, pivoting drive means for causing a pivoting movement
of said ?n into and out of the body of the vehicle, rotary
means, a plurality of pivot studs, a hollow hub connected
With said pivot studs extending transversely relative to
the longitudinal axis of said pivot studs and supporting
said ?n, and a shaft interiorly extending through said hol
low hub, said shaft being connected at one end with said
rotary wing means in said tilting drive means and at its
wing means in said pivoting drive means, and tilting drive
means for causing a tilting movement of said pin relative
opposite end with said ?n.
to the direction of flow of the medium through which the
2. A rudder ?n arrangement for vehicles comprising a 30 vehicle is passing, rotary wing means in said tilting drive
?n, pivoting drive means for causing a pivoting movement
means, a plurality of pivot studs, a hollow hub connected
of said ?n into and out of the body of the vehicle, rotary
with said pivot studs extending transversely relative to the
wing means in said pivoting drive means, and tilting drive
means for causing a tilting movement of said ?n relative
to the direction of ?ow of the medium through which the
longitudinal axis of said pivots studs and supporting said
vehicle is passing, rotary wing means in said tilting drive
means, a plurality of pivot studs, a hollow hub, forming
one integral piece of material with said pivot studs, ex
tending transversely relative to the longitudinal axis of
said pivot studs and supporting said ?n, and a shaft in 40
teriorly extending through said hollow hub, said shaft
being connected at one end with said rotary wing means
in said tilting drive means and at its opposite end with said
?n.
3. A rudder ?n ararngement for vehicles comprising a
?n, pivoting drive means for causing a pivoting movement
of said ?n into and out of the body of the vehicle, rotary
Wing means in said pivoting drive means, and tilting drive
means for causing a tilting movement of said ?n relative
to the direction of flow of the medium through which the
vehicle is passing, rotary wing means in said tilting drive
means, a plurality of pivot studs, a hollow hub connected
with said pivot studs extending transversely relative to
?n, and a shaft interiorly extending through said hollow
hub, said shaft being connected at one end with said
rotary wing means in said tilting drive means and at its
opposite end with said ?n and conduit means in one of
said pivot studs for conveying a pressure medium to said
tilting drive means.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,210,935
2,848,971
2,937,608
Giliberty ____________ __ Aug. 13, 1940
Kollenberger _________ __ Aug. 26, 1958
Vandersteel __________ __ May 24, 1960
477,779
534,372
1,153,990
Great Britain __________ __ Jan. 6, 1938
Italy ________________ __ Oct. 14, 1955
France _______________ __ Oct. 21, 1957
1,154,259
802,105
France _______________ __ Oct. 28, 1957
Great Britain __________ __ Oct. 1, 1958
FOREIGN PATENTS
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