WO2013178645A1 - Portlight provided with a friction hinge - Google Patents

Portlight provided with a friction hinge Download PDF

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Publication number
WO2013178645A1
WO2013178645A1 PCT/EP2013/060996 EP2013060996W WO2013178645A1 WO 2013178645 A1 WO2013178645 A1 WO 2013178645A1 EP 2013060996 W EP2013060996 W EP 2013060996W WO 2013178645 A1 WO2013178645 A1 WO 2013178645A1
Authority
WO
WIPO (PCT)
Prior art keywords
knuckle
opening
fork
pin
portlight
Prior art date
Application number
PCT/EP2013/060996
Other languages
French (fr)
Inventor
Benvenuto Michele PREZIUSO
Original Assignee
Amare Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amare Srl filed Critical Amare Srl
Publication of WO2013178645A1 publication Critical patent/WO2013178645A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • E05F1/1215—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis with a canted-coil torsion spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/08—Ports or like openings in vessels' sides or at the vessels' bow or stern
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E05D5/12—Securing pins in sockets, movably or not
    • E05D5/128—Securing pins in sockets, movably or not the pin having a recess or through-hole engaged by a securing member
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/16—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with friction brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/26—Mechanical friction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E05Y2201/484—Torsion springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/514—Application of doors, windows, wings or fittings thereof for vehicles for ships

Definitions

  • the present invention relates to a portlight provided with a friction hinge.
  • Portlights for marine vessels are well known in the art.
  • US 6,851,379 discloses a portlight assembly comprising an outer frame and an inner frame.
  • the outer frame has a flange and a cylindrical wall portion extending from the flange.
  • the outer frame is initially attached within an opening through the wall of a vessel hull.
  • the inner frame is connected to the cylindrical wall portion of the outer frame from the inside of the vessel hull. Gaskets are used for sealing the outer and inner frames with the vessel hull.
  • a window frame is mounted to the inner frame by means of a hinge generally comprising a pin extending through holes in bosses on the inner frame and the window frame.
  • at least one latch assembly including a flat, friction reducing washer and a frame engaging member, i.e. a lever to which is mounted an actuating knob.
  • This lever may conveniently have an angularly ramped portion extending generally radially outwardly from the pivotal mounting and configured so that it engages the inner frame through a slot thereof being dimensioned to receive the angularly ramped portion of the lever.
  • the window cannot be maintained stationary in a desired position with respect to the frame of the portlight because both the weight of the window and the movements of the vessel cause continuous displacements of the window.
  • hinges provided with friction cone locking.
  • the locking in position of the hinge is obtained by means of two countersunk screws or screws associated with conical sleeves in respective seats with the possible presence of contrast springs.
  • a friction hinge of this type is described in US 1,956,040.
  • the invention aims to overcome the drawbacks of the known art.
  • one object of the invention is to provide in a portlight a friction hinge between the frame and the window so that the friction hinge has a constant behaviour over time to ensure the adjustment of the position of the window relative to the frame.
  • Another object of the invention is to provide a portlight with latch assemblies such that they have a greater functionality and a better seal in the closure of the window.
  • aims specified are substantially achieved by a portlight provided with a friction hinge, comprising the technical characteristics exposed in one or o more of the appended claims.
  • Figure 1 is a perspective view of a portlight provided with a friction hinge according to the present invention
  • FIG. 1 is a partially cross-sectioned top plan view of the portlight in Figure 1;
  • Figure 3 is an axial cross-sectioned view along line A-A in Figure 2;
  • Figure 4 is an enlarged cross-sectioned view made along line B-B in Figure 2;
  • Figure 5 is an enlarged axial cross-sectioned view along line C-C orthogonal to line A-A in Figure 2;
  • FIG. 6 is a partial further enlarged view of Figure 4.
  • Figure 7 is an exploded perspective view of the friction hinge shown in Figure 6;
  • Figure 8 is a partial enlarged view of Figure 3.
  • Figure 9 is an exploded perspective view of the latch assembly shown in Figure 8.
  • Figure 1 is a perspective view of a portlight provided with a friction hinge according to the present invention.
  • the portlight comprises an outer frame 1, an inner frame 2 and a window frame 3.
  • the window frame 3 is hinged to the inner frame 2 by means of a friction hinge 4 that will be described below.
  • Three latch assemblies generally indicated as 5 allow the window frame 3 to be locked to inner frame 2 as illustrated in the following.
  • a transparent plate 6, preferably made of plastics such as polymethylmethacrylate is housed in the window frame 3.
  • Figure 2 is a partially cross-sectioned top plan view of the portlight in Figure 1.
  • the outer frame 1 has a flange 7 and a cylindrical wall portion 8 extending from the flange 7.
  • the outer frame 1 is designed to be attached within an opening through the wall of a vessel hull
  • the inner frame 2 is connected to the cylindrical wall portion 8 of the outer frame 1 from the inside of the vessel hull by means known in the art.
  • the latch assemblies 5 of the window frame 3 to the inner frame 2 are mounted on the inner frame 2, as will be seen better below.
  • Figures 2 and 4 being an enlarged cross-sectioned view made along line B-B in Figure 2, the friction hinge 4 is shown through which the window frame 3 is hinged to the inner frame 2.
  • the connection between the friction hinge 4 and the window frame 3 is effected by a pair of screws 9 (one of which is shown in Figure 2), and the connection between the friction hinge 4 and the inner frame 2 is performed by a pair of screws 10, 10.
  • FIG 5 which is an enlarged axial cross-sectioned view according to a line C-C orthogonal to the line A-A of Figure 2, a positional relationship between the friction hinge 4 and the levers of the lack assemblies 5 is best shown.
  • a mosquito-net 13 can be mounted peripherally on the inner frame 2.
  • Figure 6 which is a further partial enlargement of Figure 4, the hinge friction of the portlight according to the present invention is shown in detail, while Figure 7 is an exploded perspective view of the friction hinge shown in Figure 6.
  • the friction hinge 4 mainly comprises a fork- shaped hinge member 14, a knuckle 15, a hinge pin 16, a helical spring 17, a first screw 18, a second screw 19.
  • the fork-shaped hinge member 14 has a base element 20 and a first and a second bosses 21, 22 provided with coaxial holes 23 e 24.
  • the fork-shaped hinge member 14 is connected to the inner frame 2 by means of the screws 10, 10 passing through holes made in the base element 20 and the first and second bosses 21, 22 of the fork-shaped hinge member 14.
  • the knuckle 15 is in the form of a hollow cylindrical block mounted on the fork-shaped hinge member 14 and connected to the window frame 3.
  • the knuckle 15 has at its ends a first opening 25 facing the hole 23 in the first boss 21, and a second opening 26 facing the hole 24 in the second boss 22.
  • the second opening 26 is internally threaded.
  • the hinge pin 16 is positioned within the knuckle 15 and has a pin head 27 and a pin rod 28.
  • the pin head 27 is provided with a centrally threaded bore 29 and protrudes outside the knuckle 15 from its first opening 25.
  • the pin rod 28 is supported by the knuckle 15 at the second opening 26 thereof.
  • the helical spring 17 surrounds the pin rod 28 inside the knuckle 15.
  • the helical spring 17 has a first end 30 engaging the pin head 27 in a slot 31 thereof, and the second end 32 engaging the knuckle 15 near its second opening 26 in a slot not shown in the drawings.
  • the first screw 18 passes through the hole 23 in the first boss 21 of the fork-shaped hinge member 14 and is screwed in the pin head 27.
  • the second screw 19 opposite to the first screw 18 has a conical screw head 33 and the screw rod 34 passing through the second boss 22 of the fork-shaped hinge member 14 and is screwed to the knuckle 15 in the threaded second opening 26 thereof.
  • the second screw 19 opposite to the first screw 18 is spring charged.
  • the hole 24 in the second boss 22 of the fork-shaped hinge member 14 has a portion of enlarged diameter generating an abutment wall 35 in the second boss 22.
  • a bushing 36 and a plurality of Belleville washers 37 are positioned in said portion of enlarged diameter of the hole 24 in the second boss 22 of the fork-shaped hinge member 14 so that the bushing 36 and the plurality of Belleville washers 37 are positioned between the conical screw head 33 of the second screw 19 and said abutment wall 35.
  • a washer 38 is provided between the abutment wall 35 and the knuckle 15.
  • the hinge pin 16 its pin head 27 has a cylindrical portion 39 and a prismatic portion 40.
  • the cylindrical portion 39 serves for supporting the knuckle 15 in correspondence of its first opening 25.
  • the prismatic portion 40 for example square-shaped with rounded corner, is adapted to be engaged by a wrench for rotating the hinge pin
  • the end of the pin rod 28 opposite to the pin head 27 is denoted as 41.
  • the knuckle 15 is provided of holes 42, 42 adapted to receive the screws 9, 9 useful for retaining the window frame 3 to the friction hinge 4 as shown in figure 2.
  • the friction hinge 4 is assembled as described below.
  • the fork-shaped hinge member 14 is fastened to the inner frame 2 by means of the screws 10, 10.
  • the helical spring 17 is mounted inside the knuckle 15 so that its second end is locked in a seat not shown in the knuckle 15 near the second opening 26 thereof.
  • the hinge pin 16 is inserted in the knuckle 15 inside the helical spring 17.
  • An end 41 that is opposite to the pin head 37 is supported by the knuckle 15 in its second opening 26.
  • the first end 30 of the helical spring 17 is inserted in a seat 31 that is made in the cylindrical portion 39 of the pin head 27.
  • the knuckle 15 is supported in its first opening 25 by the same cylindrical portion 39 of the pin head 27.
  • the knuckle 15 is now mounted on the fork-shaped hinge member 14 by means of the first and second screws 18, 19 that are inserted in through holes 23, 24 of the first and the second bosses respectively, and not completely screwed in the centrally threaded bore 29 of the pin head 27 and in the threaded second opening 26 of the knuckle 15, respectively.
  • the second screw 19 is spring charged as above described by means of the interposition of the Belleville washers 37 and the bushing 36 between the screw head 33 and the abutment wall 35.
  • the helical spring 17 can be charged in its unwinding direction by rotating the hinge pin through a wrench operating on the prismatic portion 40 of the pin head 27.
  • the first and the second screws 18, 19 are completely screwed.
  • the second screw 19 serves to create a friction counteracting the rotation of the knuckle 15 caused by the helical spring 17 in its winding.
  • the movement of the window frame 3 that is connected to the knuckle 15 by means of the screws 9, 9 would cause the sudden opening of the window due to the torsion of the helical spring 17.
  • This movement is controlled by the friction of the knuckle 15 against the washer 38 abutted to the wall 35 of the second boss 22.
  • the pin rod 28 is of such a length that, when the second screw 19 is completely screwed, the end of the screw rod 34 is in contact with the end 41 of the pin rod 28. In this way the action of the Belleville washer is maintained constant without any need of subsequent adjustment.
  • each latch assembly 5 has a lever 43 that is supported about a pivotal mounting carried by the inner frame 2.
  • the pivot mounting comprises a screw 44 passing through a hole in the inner frame 2.
  • the screw 44 has a rod 45 in which there is inserted a housing for Belleville washer 46.
  • Said housing comprises two compenetrating opposed cylinders: the first cylinder 47 is threaded internally and externally for fastening the screw 44 to the inner frame 2, and a second cylinder 48 that is partially hollow for retaining the Belleville washers inside such a housing.
  • a pin 49 connects two cylinders 47, 48 to each other.
  • the lever 43 is inserted in the rod 45 of the screw 44, two washers 50, 51 being interposed between the second cylinder 48 and the lever 43 and between the lever 43 and a sleeve 52, respectively.
  • the sleeve 52 which is internally threaded to be screwed on the rod 45 of the screw 44, is covered by a cup 53.
  • the lever 43 has an actuating knob 54 and an angularly ramped portion 55 extending generally radially outwardly from the pivotal mounting. This angularly ramped portion 55 is configured so that it engages the window frame 3 through a slot thereof being dimensioned to receive the angularly ramped portion of the lever.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

A portlight is provided with a friction hinge (4) in which a fork-shaped hinge member (14), having a first and a second bosses (21, 22) provided with coaxial holes (23, 24), a knuckle (15) having a first opening (25) facing the hole (23), and a second threaded opening (26) facing the hole (24), a hinge pin (16) having a pin head (27) provided with a centrally threaded bore (29) for a first screw (18) passing through the hole (23), the pin head (27) protruding outside the knuckle (15) from its first opening (25), and a pin rod (28) supported by the knuckle (15) at the second opening (26) thereof, in which a second screw (19) passing through second boss (22) is screwed, and a helical spring (17) surrounding said pin rod (28) and having a first end (30) engaging said pin head (27) and a second end (32) engaging the knuckle (15).

Description

PORTLIGHT PROVIDED WITH A FRICTION HINGE Technical field
The present invention relates to a portlight provided with a friction hinge. Background art
Portlights for marine vessels are well known in the art.
US 6,851,379 discloses a portlight assembly comprising an outer frame and an inner frame. The outer frame has a flange and a cylindrical wall portion extending from the flange. The outer frame is initially attached within an opening through the wall of a vessel hull. The inner frame is connected to the cylindrical wall portion of the outer frame from the inside of the vessel hull. Gaskets are used for sealing the outer and inner frames with the vessel hull. A window frame is mounted to the inner frame by means of a hinge generally comprising a pin extending through holes in bosses on the inner frame and the window frame. Further, there is provided at least one latch assembly including a flat, friction reducing washer and a frame engaging member, i.e. a lever to which is mounted an actuating knob. These components are received over a pivotal mounting extending generally normal to and carried by the window frame. This lever may conveniently have an angularly ramped portion extending generally radially outwardly from the pivotal mounting and configured so that it engages the inner frame through a slot thereof being dimensioned to receive the angularly ramped portion of the lever.
In the kind of portlight described above, especially when the hinge is positioned in the upper part of the portlight, the window cannot be maintained stationary in a desired position with respect to the frame of the portlight because both the weight of the window and the movements of the vessel cause continuous displacements of the window.
In some types of portlights, such as those described in US 5,832,565, there are provided hinges provided with friction cone locking. The locking in position of the hinge is obtained by means of two countersunk screws or screws associated with conical sleeves in respective seats with the possible presence of contrast springs. A friction hinge of this type is described in US 1,956,040. By adjusting the position of the screws the position of the 5 window with respect to the portlight is ensured. However, during the use, this solution generates a failure of the hinges which can cause abrupt closures of the window on the frame with a result of damages to persons as well as to the same portlight.
Disclosure of the Invention
o The invention aims to overcome the drawbacks of the known art.
In particular, one object of the invention is to provide in a portlight a friction hinge between the frame and the window so that the friction hinge has a constant behaviour over time to ensure the adjustment of the position of the window relative to the frame.
5 Another object of the invention is to provide a portlight with latch assemblies such that they have a greater functionality and a better seal in the closure of the window.
The aims specified are substantially achieved by a portlight provided with a friction hinge, comprising the technical characteristics exposed in one or o more of the appended claims.
Brief description of drawings
Further characteristics and advantages of the present invention will become more apparent from the indicative, and therefore non-limiting embodiment of a portlight provided with a friction hinge, as illustrated in 5 the accompanying drawings in which:
Figure 1 is a perspective view of a portlight provided with a friction hinge according to the present invention;
- Figure 2 is a partially cross-sectioned top plan view of the portlight in Figure 1;
0 - Figure 3 is an axial cross-sectioned view along line A-A in Figure 2; Figure 4 is an enlarged cross-sectioned view made along line B-B in Figure 2;
Figure 5 is an enlarged axial cross-sectioned view along line C-C orthogonal to line A-A in Figure 2;
- Figure 6 is a partial further enlarged view of Figure 4;
Figure 7 is an exploded perspective view of the friction hinge shown in Figure 6;
Figure 8 is a partial enlarged view of Figure 3; and
Figure 9 is an exploded perspective view of the latch assembly shown in Figure 8.
Description of an embodiment of the invention
First reference is made to Figure 1, which is a perspective view of a portlight provided with a friction hinge according to the present invention. The portlight comprises an outer frame 1, an inner frame 2 and a window frame 3. The window frame 3 is hinged to the inner frame 2 by means of a friction hinge 4 that will be described below. Three latch assemblies generally indicated as 5 allow the window frame 3 to be locked to inner frame 2 as illustrated in the following. A transparent plate 6, preferably made of plastics such as polymethylmethacrylate is housed in the window frame 3.
Figure 2 is a partially cross-sectioned top plan view of the portlight in Figure 1. As shown in Figure 3, which is an axial cross-sectioned view along line A-A in Figure 2, the outer frame 1 has a flange 7 and a cylindrical wall portion 8 extending from the flange 7. The outer frame 1 is designed to be attached within an opening through the wall of a vessel hull
(not shown). The inner frame 2 is connected to the cylindrical wall portion 8 of the outer frame 1 from the inside of the vessel hull by means known in the art. The latch assemblies 5 of the window frame 3 to the inner frame 2 are mounted on the inner frame 2, as will be seen better below. Referring to Figures 2 and 4, the latter being an enlarged cross-sectioned view made along line B-B in Figure 2, the friction hinge 4 is shown through which the window frame 3 is hinged to the inner frame 2. The connection between the friction hinge 4 and the window frame 3 is effected by a pair of screws 9 (one of which is shown in Figure 2), and the connection between the friction hinge 4 and the inner frame 2 is performed by a pair of screws 10, 10.
In Figure 5, which is an enlarged axial cross-sectioned view according to a line C-C orthogonal to the line A-A of Figure 2, a positional relationship between the friction hinge 4 and the levers of the lack assemblies 5 is best shown. The transparent plate 6, which is housed in the window frame 3, rests in its closed position against the inner frame 2 by means of a gasket 11, and the inner frame 2 is sealed to the wall of the vessel hull by means of a base gasket 12. A mosquito-net 13 can be mounted peripherally on the inner frame 2.
In Figure 6, which is a further partial enlargement of Figure 4, the hinge friction of the portlight according to the present invention is shown in detail, while Figure 7 is an exploded perspective view of the friction hinge shown in Figure 6.
Referring to Figures 6 and 7, the friction hinge 4 mainly comprises a fork- shaped hinge member 14, a knuckle 15, a hinge pin 16, a helical spring 17, a first screw 18, a second screw 19.
The fork-shaped hinge member 14 has a base element 20 and a first and a second bosses 21, 22 provided with coaxial holes 23 e 24. The fork-shaped hinge member 14 is connected to the inner frame 2 by means of the screws 10, 10 passing through holes made in the base element 20 and the first and second bosses 21, 22 of the fork-shaped hinge member 14.
The knuckle 15 is in the form of a hollow cylindrical block mounted on the fork-shaped hinge member 14 and connected to the window frame 3. The knuckle 15 has at its ends a first opening 25 facing the hole 23 in the first boss 21, and a second opening 26 facing the hole 24 in the second boss 22. The second opening 26 is internally threaded.
The hinge pin 16 is positioned within the knuckle 15 and has a pin head 27 and a pin rod 28. The pin head 27 is provided with a centrally threaded bore 29 and protrudes outside the knuckle 15 from its first opening 25. The pin rod 28 is supported by the knuckle 15 at the second opening 26 thereof.
The helical spring 17 surrounds the pin rod 28 inside the knuckle 15. The helical spring 17 has a first end 30 engaging the pin head 27 in a slot 31 thereof, and the second end 32 engaging the knuckle 15 near its second opening 26 in a slot not shown in the drawings.
The first screw 18 passes through the hole 23 in the first boss 21 of the fork-shaped hinge member 14 and is screwed in the pin head 27.
The second screw 19 opposite to the first screw 18 has a conical screw head 33 and the screw rod 34 passing through the second boss 22 of the fork-shaped hinge member 14 and is screwed to the knuckle 15 in the threaded second opening 26 thereof. The second screw 19 opposite to the first screw 18 is spring charged. For this purpose, the hole 24 in the second boss 22 of the fork-shaped hinge member 14 has a portion of enlarged diameter generating an abutment wall 35 in the second boss 22. A bushing 36 and a plurality of Belleville washers 37 are positioned in said portion of enlarged diameter of the hole 24 in the second boss 22 of the fork-shaped hinge member 14 so that the bushing 36 and the plurality of Belleville washers 37 are positioned between the conical screw head 33 of the second screw 19 and said abutment wall 35. A washer 38 is provided between the abutment wall 35 and the knuckle 15.
As for the hinge pin 16, its pin head 27 has a cylindrical portion 39 and a prismatic portion 40. As can be seen in figure 6, the cylindrical portion 39 serves for supporting the knuckle 15 in correspondence of its first opening 25. The prismatic portion 40, for example square-shaped with rounded corner, is adapted to be engaged by a wrench for rotating the hinge pin The end of the pin rod 28 opposite to the pin head 27 is denoted as 41. Further, the knuckle 15 is provided of holes 42, 42 adapted to receive the screws 9, 9 useful for retaining the window frame 3 to the friction hinge 4 as shown in figure 2.
The friction hinge 4 is assembled as described below. The fork-shaped hinge member 14 is fastened to the inner frame 2 by means of the screws 10, 10. Then the helical spring 17 is mounted inside the knuckle 15 so that its second end is locked in a seat not shown in the knuckle 15 near the second opening 26 thereof. The hinge pin 16 is inserted in the knuckle 15 inside the helical spring 17. An end 41 that is opposite to the pin head 37 is supported by the knuckle 15 in its second opening 26. The first end 30 of the helical spring 17 is inserted in a seat 31 that is made in the cylindrical portion 39 of the pin head 27. The knuckle 15 is supported in its first opening 25 by the same cylindrical portion 39 of the pin head 27. The knuckle 15 is now mounted on the fork-shaped hinge member 14 by means of the first and second screws 18, 19 that are inserted in through holes 23, 24 of the first and the second bosses respectively, and not completely screwed in the centrally threaded bore 29 of the pin head 27 and in the threaded second opening 26 of the knuckle 15, respectively. The second screw 19 is spring charged as above described by means of the interposition of the Belleville washers 37 and the bushing 36 between the screw head 33 and the abutment wall 35.
At this moment the helical spring 17 can be charged in its unwinding direction by rotating the hinge pin through a wrench operating on the prismatic portion 40 of the pin head 27. When the desired torsion in the helical spring is obtained, the first and the second screws 18, 19 are completely screwed. The second screw 19 serves to create a friction counteracting the rotation of the knuckle 15 caused by the helical spring 17 in its winding. In this way the movement of the window frame 3 that is connected to the knuckle 15 by means of the screws 9, 9 would cause the sudden opening of the window due to the torsion of the helical spring 17. This movement is controlled by the friction of the knuckle 15 against the washer 38 abutted to the wall 35 of the second boss 22. In order to adjust said friction so that the window can remain in a desired position, the pin rod 28 is of such a length that, when the second screw 19 is completely screwed, the end of the screw rod 34 is in contact with the end 41 of the pin rod 28. In this way the action of the Belleville washer is maintained constant without any need of subsequent adjustment.
When the window is closed, the latch assemblies 5 lock the position of the window frame 3 to the inner frame 2. As shown in Figures 8 and 9, that are a partial enlarged view of Figure 3 and an exploded perspective view of the latch assembly shown in Figure 8 respectively, according to the present invention, each latch assembly 5 has a lever 43 that is supported about a pivotal mounting carried by the inner frame 2. The pivot mounting comprises a screw 44 passing through a hole in the inner frame 2. The screw 44 has a rod 45 in which there is inserted a housing for Belleville washer 46. Said housing comprises two compenetrating opposed cylinders: the first cylinder 47 is threaded internally and externally for fastening the screw 44 to the inner frame 2, and a second cylinder 48 that is partially hollow for retaining the Belleville washers inside such a housing. A pin 49 connects two cylinders 47, 48 to each other. The lever 43 is inserted in the rod 45 of the screw 44, two washers 50, 51 being interposed between the second cylinder 48 and the lever 43 and between the lever 43 and a sleeve 52, respectively. The sleeve 52, which is internally threaded to be screwed on the rod 45 of the screw 44, is covered by a cup 53. The lever 43 has an actuating knob 54 and an angularly ramped portion 55 extending generally radially outwardly from the pivotal mounting. This angularly ramped portion 55 is configured so that it engages the window frame 3 through a slot thereof being dimensioned to receive the angularly ramped portion of the lever.
The features of the invention can vary in the scope of the invention defined by the enclosed claims.

Claims

CLAIM
1. A portlight provided with a friction hinge, comprising an outer frame (1) being attached within an opening through the wall of a vessel hull and having a flange (7) and a cylindrical wall portion (8) extending from the flange (7), an inner frame (2) being connected to the cylindrical wall portion (8) of the outer frame (1) from the inside of the vessel hull, and a window frame (3) being mounted to the inner frame (2) by means of a friction hinge (4), at least one latch assembly (5) including a lever (43) provided with an actuating knob (54) in order to lock the frame window (3) to the inner frame (2), characterised in that said friction hinge (4) comprises:
- a fork-shaped hinge member (14) being connected to said inner frame (2) and having a base element (20) and a first and a second bosses (21, 22) provided with coaxial holes (23, 24);
- a knuckle (15) being in the form of a hollow cylindrical block mounted on said fork-shaped hinge member (14) and connected to said window frame (3), the knuckle (15) having at its ends a first opening (25) facing the hole (23) of said first boss (21), and a second opening (26) facing the hole (24) of said second boss (22), the second opening (26) being internally threaded;
- a hinge pin (16) being positioned within the knuckle (15), the hinge pin (16) having a pin head (27) provided with a centrally threaded bore (29) and protruding outside the knuckle (15) from its first opening (25), and a pin rod (28) supported by the knuckle (15) at the second opening (26) thereof;
- a helical spring (17) surrounding said pin rod (28) inside the knuckle (15), the helical spring (17) having a first end (30) engaging said pin head (27) and a second end (32) engaging the knuckle (15) near its second opening (26);
- a first screw (18) passing through the hole (23) in the first boss (21) of the fork-shaped hinge member (14) and being screwed in said pin head (27); and
- a second screw (19) opposite to said first screw (18) being spring charged, having a conical screw head (33) and a screw rod (34) passing through said second boss (22) of the fork-shaped hinge member (14) and being screwed to the knuckle (15) in the threaded second opening (26) thereof.
2. The portlight according to claim 1, wherein the pin head (27) has a cylindrical portion (39) for supporting the knuckle (15) and a prismatic portion (40) adapted to be engaged by a wrench for rotating the hinge pin (16).
3. The portlight according to claim 1, wherein the hole (24) in the second boss (22) of the fork-shaped hinge member (14) has a portion of enlarged diameter generating an abutment wall (35) in the second boss (22), a bushing (36) and a plurality of Belleville washers (37) being interposed in said hole (24) in the second boss (22) of the fork-shaped hinge member (14) between the conical screw head (33) of the second screw (19) and said abutment wall (35).
4. The portlight according to claim 1, wherein said fork-shaped hinge member (14) is connected to said inner frame (2) by means of screws (10,
10) passing through holes made in the base element (20) and the first and second bosses (21, 22) of the fork-shaped hinge member (14).
5. The portlight according to claim 1, wherein said lever (43) of said at least one latch assembly (5) is supported about a pivotal mounting carried by said inner frame (2) and is provided with an angularly ramped portion (55) extending generally radially outwardly from the pivotal mounting and configured so that it engages the window frame (3) through a slot thereof being dimensioned to receive the angularly ramped portion (55) of the lever (43).
PCT/EP2013/060996 2012-05-29 2013-05-29 Portlight provided with a friction hinge WO2013178645A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITCB2012U000003 2012-05-29
IT000003U ITCB20120003U1 (en) 2012-05-29 2012-05-29 OBLO "NEW GENERATION" WITH A UNIQUE DESIGN THAT COMBINES FUNCTIONAL ESSENTIALITY AND FORMAL INNOVATIVE CLEANING FOR HINGES WITH A TORSION SPRING AND FOR THE CLOSING SYSTEM WITH LEVERS THAT GUARANTEE A PERFECT WATER-BASED GUARN

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104527933A (en) * 2014-12-10 2015-04-22 上海德瑞斯华海船用设备有限公司 Adjustable sealing device and cabin comprising adjustable sealing device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956040A (en) 1932-02-05 1934-04-24 Porcelain Products Inc Friction hinge
GB2133831A (en) * 1983-01-05 1984-08-01 Goiot Sa Improvements in horizontally hinged panels
US4976212A (en) * 1989-04-26 1990-12-11 Itc Incorporated Portlight for water craft
US5832565A (en) 1997-03-06 1998-11-10 Water Bonnet Mfg., Inc. Hinge arrangement for marine windows and other pivoting structures
EP1460228A2 (en) * 2003-03-20 2004-09-22 Stoschek Bearbeitungs GmbH Hinge for windows or doors
US6851379B2 (en) 2003-06-06 2005-02-08 Jim Black & Associates, Inc. Portlight assembly
DE102009033222B3 (en) * 2009-07-14 2010-10-14 Zimmer, Günther Hinge with self-closing
WO2012018361A1 (en) * 2010-08-05 2012-02-09 Hui-Fang, Shaw, Hwee Adjustable torque hinge

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956040A (en) 1932-02-05 1934-04-24 Porcelain Products Inc Friction hinge
GB2133831A (en) * 1983-01-05 1984-08-01 Goiot Sa Improvements in horizontally hinged panels
US4976212A (en) * 1989-04-26 1990-12-11 Itc Incorporated Portlight for water craft
US5832565A (en) 1997-03-06 1998-11-10 Water Bonnet Mfg., Inc. Hinge arrangement for marine windows and other pivoting structures
EP1460228A2 (en) * 2003-03-20 2004-09-22 Stoschek Bearbeitungs GmbH Hinge for windows or doors
US6851379B2 (en) 2003-06-06 2005-02-08 Jim Black & Associates, Inc. Portlight assembly
DE102009033222B3 (en) * 2009-07-14 2010-10-14 Zimmer, Günther Hinge with self-closing
WO2012018361A1 (en) * 2010-08-05 2012-02-09 Hui-Fang, Shaw, Hwee Adjustable torque hinge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104527933A (en) * 2014-12-10 2015-04-22 上海德瑞斯华海船用设备有限公司 Adjustable sealing device and cabin comprising adjustable sealing device

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