EP3969708A1 - Compact and dampened hinge device - Google Patents

Compact and dampened hinge device

Info

Publication number
EP3969708A1
EP3969708A1 EP20732492.2A EP20732492A EP3969708A1 EP 3969708 A1 EP3969708 A1 EP 3969708A1 EP 20732492 A EP20732492 A EP 20732492A EP 3969708 A1 EP3969708 A1 EP 3969708A1
Authority
EP
European Patent Office
Prior art keywords
connection means
sliding
sliding direction
elastic
abutment
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP20732492.2A
Other languages
German (de)
French (fr)
Other versions
EP3969708B1 (en
Inventor
Emanuele TERENZI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CMI Cerniere Meccaniche Industriali SRL
Original Assignee
CMI Cerniere Meccaniche Industriali 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 CMI Cerniere Meccaniche Industriali SRL filed Critical CMI Cerniere Meccaniche Industriali SRL
Publication of EP3969708A1 publication Critical patent/EP3969708A1/en
Application granted granted Critical
Publication of EP3969708B1 publication Critical patent/EP3969708B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1261—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • 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
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/404—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
    • E05Y2201/41—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for closing
    • E05Y2201/412—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for closing for the final closing movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens

Definitions

  • the present invention is part of the sector concerning hinges for appliances and household appliances such as ovens, dishwashers and the like and refers in particular to a compact and dampened hinge device for the swivelling connection of a door to a respective appliance to allow its closing and opening and able to provide the door, in its initial opening or ending closing ways, with an additional modulable elastic force capable of damping the speed of the final closing rotation.
  • hinge devices capable of modulating the elastic forces acting on a respective door and which can dampen the travel thereof.
  • a drawback of such known devices consists in the fact that they are generally of large dimensions and complex axes.
  • hinged devices Another drawback of such hinged devices consists in the fact that they often have a not very smooth operation and are subject to jamming and/or not sufficiently regular rotations.
  • a further drawback of such hinge devices consists in the fact that the elastic and damping forces transmittable to the door are correlated and not independent.
  • An object of the present invention is to propose a compact and dampened hinge device which can also be installed in household appliances and appliances having little space available for the hinge device itself. Another object is to propose a hinge device with a smooth and regular operation.
  • a further object is to propose a hinge device in which the elastic forces can be decoupled from the rotation damping forces to act on the door with elastic forces independently from the damping of the rotation thereof.
  • figure 1 shows a side view of the compact and dampened hinge device object of the present invention, in an opened condition
  • figures 2-4 show respectively axial, top and front axonometric views of the device of figure 1;
  • figure 5 shows an exploded view of the device of figure 1;
  • figure 6 shows a section view according to a longitudinal plane of the device of figure
  • figure 7 shows an enlarged view of a detail of figure 6
  • figures 8-10 show enlarged and axonometric views of a detail of the device of figure 1, in a partially opened condition, in which some details have been fractured and/or removed;
  • figure 11 shows a partially sectioned and split side view of figure 10.
  • numeral 1 indicates the compact and dampened hinge device, object of the present invention, for hatches, shutters, flaps, doors and the like, of appliances, household appliances, furniture, furnishings and the like, below collectively indicated also with the only term “appliances” alone.
  • the device 1 comprises a first connection means 3 assigned to be fixed to an hatch or shutter for rotation of the latter between the closed and totally opened conditions of said appliance, household appliance or the like and swivelling connected, by means of a hinge pin 4, to a second connection means 5 assigned to be fixed to a structure or frame of an appliance, household appliance or the like.
  • the device 1 comprises at least a first elastic means 7, consisting for example in a helical spring operating in compression between the first connection means 3 and the second connection means 5, to which such spring is connected by means of transmission means comprising a spring mean and a sliding element to transmit to the first connection means 3, and then to the door, an elastic torque directed towards the closed condition of the household appliances or appliance and of the hinge device 1.
  • a first elastic means 7 consisting for example in a helical spring operating in compression between the first connection means 3 and the second connection means 5, to which such spring is connected by means of transmission means comprising a spring mean and a sliding element to transmit to the first connection means 3, and then to the door, an elastic torque directed towards the closed condition of the household appliances or appliance and of the hinge device 1.
  • Said device 1 further comprises a damper element 11 of the linear type, for example comprising a tubular cylinder whose cavity contains a viscous fluid, a piston sliding in the cylinder and equipped with a rod protruding from the cylinder, valve and/or drawbench elements and an elastic means which applies to the piston and to the rod a moderate extension force of the rod itself with respect to the cylinder so that in the absence of opposite forces the rod protrudes to a maximum extent from the cylinder.
  • a damper element 11 of the linear type for example comprising a tubular cylinder whose cavity contains a viscous fluid, a piston sliding in the cylinder and equipped with a rod protruding from the cylinder, valve and/or drawbench elements and an elastic means which applies to the piston and to the rod a moderate extension force of the rod itself with respect to the cylinder so that in the absence of opposite forces the rod protrudes to a maximum extent from the cylinder.
  • the damper element 11 has a longitudinal geometric axis and one of its first ends is connected to the first connection means 3, for example and as illustrated, by means of the aforementioned sliding element.
  • the damper element 11 first end can be connected to the second connection means 5 directly or through interconnecting means.
  • the damper element 11 second end is assigned to match with an abutment element 13 sliding in a sliding direction approximately aligned or parallel to the axis of the damper element 11.
  • Such movement of the abutment element 13 takes place by means of a translating means 15 sliding in said sliding direction which is operated, at least in the terminal closing phase of the door and/or in other rotation phases, by at least one offset element 17 transversely fixed to the second connection means 5 at a respective predetermined distance from the hinge pin 4.
  • the offset element 17 matches with the translating means 15 making it slide together with the abutment element 13 into the sliding direction compressing the damper element 11 which brakes the rotation of the door in such angular sector.
  • the second connection means 5 carries a cam element 21 fixed to or made in the second connection means 5 and the device comprises a spinning element 23 elastically pressed in the sliding direction by a second elastic means 19 which, at least in an angular sector of the door rotation, transmits its elastic force to the cam element 21 by means of the spinning element 23.
  • the profile and the angular positioning of the cam element 21, which can be single or multiple, allow the second elastic means to impart to the second connection means 5, by means of the spinning element 23, a force whose intensity and whose orientation, towards closing or opening, depend on the characteristics of the compressed helical spring of the second elastic element and on the position and shape of the cam element 21 profile thanks to which it is possible to impart closing or opening forces to the door or of metastable positioning in angular sectors of the rotation of the hinge which can be determined, with great freedom, according to needs and applications.
  • the first elastic means 7 transmits its elastic force to a connecting pin 27 fixed to the second connection means 5 at a respective predetermined distance from the hinge pin 4 and fixed to one end of a tie-rod element 29, that is the sliding element cited above, to which the first elastic means 7 is connected.
  • This tie-rod element 29 slides approximately in the sliding direction within the first connection means 3. While the force of the first elastic means is always directed towards closure, the force of the second elastic means can be directed towards the closure or the opening and therefore it can be concordant or opposed to the strength of the first elastic means by increasing or reducing it.
  • the portion of the tie-rod element 29 opposite the connecting pin 27 carries or, preferably and as illustrated, has a seat element 31 bound thereto and the portion of the tie-rod element 29 carrying the connecting pin 27 has or, preferably and as illustrated, contains a support element 33 having at its own end, a rotation axis 22 of the spinning element 23, this axis 22 protrudes from the support element 33 housing holes and is slidingly engaged in slots 24 elongated in the sliding direction made in the tie-rod element 29.
  • the second elastic means 19 consists of a helical spring compressed between a shoulder 35 of the seat element 31 and another shoulder 37 of the support element 33.
  • the seat element 31 houses the first end of the damper element 11 which is coaxial with the second elastic means 19.
  • the first connection means 3 has a box-shaped elongated shape in the sliding direction and has at one end housings 6 for fixing the hinge pin 4 and its opposite end comprises a striker or abutment, for example consisting of its terminal face, for one end of the first elastic means 7 with helical spring.
  • a striker or abutment or face of the first connection means 3 has an opening passing through the sliding of a spring mean 43 having one end connected to the opposite end of the first elastic means 7.
  • the other and opposite end of the spring mean 43 has a fixing pin 45, the ends of which are fixed in respective seat holes made in the end of the tie-rod element 29 opposite the end carrying the connecting pin 27.
  • Such ends of the fixing pin 45 are also slidably housed in respective slots 44 elongated along the sliding direction and made in the end of the first connection means 3 opposite to its end carrying the housing 6 for the hinge pin 4.
  • the fixing pin 45 is preferably engaged in a hole or attachment of the seat element 31.
  • the support element 33 is made of cut sheet metal or other folded or "U” shaped squared and elongated material whose bottom or middle portion forms the respective shoulder 37 and whose ends carry holes for the rotation axis 22 of the spinning element 23.
  • the translating means 15 is made of cut sheet metal or other material, and a transverse dimension smaller than the space within the support element 33 which slidingly houses it and has a lateral profile approximately in side by side pairs of "V" or "L” where a pair of parallel arms houses the respective elongated slots 16 and the other pair of arms carries flat or shaped surfaces of sliding or rolling contact with the ends of the offset element 17 carrying respective sliding or rolling elements.
  • the abutment element 13 and the seat element 31 for the respectively second and first end of the damper element 11 are equipped with respective sliding seats parallel to the sliding direction and assigned to house an alignment rod 49.
  • intervention sectors of the damper element 11 and of the second elastic means 19 are respectively determined by the offset element 17 and by the cam element 21 and therefore they are not necessarily correlated or linked but are completely independent.
  • the hinge can be connected to the appliance in an opposite way that is with the first connection means 3 fixed to the structure or frame and the second attachment means 5 fixed to the hatch while remaining within the scope of the present invention.

Abstract

A compact and dampened hinge device includes a first connection means (3) assigned to be fixed to a hatch or shutter for the rotation of the latter between closed and fully opened conditions of a respective appliance or household appliances. This first attachment means is swivelling connected, through a hinge pin (4), to a second connection means (5) assigned to be fixed to a structure or frame of said appliance or household appliances. The device (1) comprises at least a first elastic means (7) interconnected between the first (3) and second (5) connection means to transmit to the first (3) connection means an elastic torque directed towards the closed condition of the hinged device (1). Said device (1) comprises a damper element (11) of a linear type having a longitudinal geometric axis and a first end connected to at least one of the first (3) or second (5) connection means directly or by means of an element connected thereto (3, 5). The other and second end of the damper element (11) is assigned to meet with an abutment element (13) slidable in a sliding direction aligned or parallel to the axis of the damper element (11) due to the effect of a translating means (15) sliding in said sliding direction and actuated, at least in the terminal closing phase of the hatch, by at least one offset element (17) fixed to the second connection means (5) at a respective predetermined distance from the hinge pin (4). In at least one angular sector of the door rotation, the offset element (17) meets with the translating means (15) sliding it together with the abutment element (13) in the sliding direction compressing the damper element (11) which brakes the rotation of the door in such angular sector.

Description

COMPACT AND DAMPENED HINGE DEVICE
DESCRIPTION
TECHNICAL FIELD
The present invention is part of the sector concerning hinges for appliances and household appliances such as ovens, dishwashers and the like and refers in particular to a compact and dampened hinge device for the swivelling connection of a door to a respective appliance to allow its closing and opening and able to provide the door, in its initial opening or ending closing ways, with an additional modulable elastic force capable of damping the speed of the final closing rotation.
BACKGROUND ART
There are known hinge devices capable of modulating the elastic forces acting on a respective door and which can dampen the travel thereof.
A drawback of such known devices consists in the fact that they are generally of large dimensions and complex axes.
Another drawback of such hinged devices consists in the fact that they often have a not very smooth operation and are subject to jamming and/or not sufficiently regular rotations.
A further drawback of such hinge devices consists in the fact that the elastic and damping forces transmittable to the door are correlated and not independent.
DISCLOSURE OF THE INVENTION
An object of the present invention is to propose a compact and dampened hinge device which can also be installed in household appliances and appliances having little space available for the hinge device itself. Another object is to propose a hinge device with a smooth and regular operation.
A further object is to propose a hinge device in which the elastic forces can be decoupled from the rotation damping forces to act on the door with elastic forces independently from the damping of the rotation thereof.
Previous documents N. EP 1 847 670 A2 and EP 3 073 038 A1 disclose hinges which show some of the characteristics of the preamble of claim 1 of the present invention.
BRIEF DESCRIPTION OF DRAWINGS
The characteristics of the invention are highlighted below with particular reference to the accompanying drawings in which: figure 1 shows a side view of the compact and dampened hinge device object of the present invention, in an opened condition;
figures 2-4 show respectively axial, top and front axonometric views of the device of figure 1;
figure 5 shows an exploded view of the device of figure 1;
figure 6 shows a section view according to a longitudinal plane of the device of figure
1 in a partially opened condition;
figure 7 shows an enlarged view of a detail of figure 6;
figures 8-10 show enlarged and axonometric views of a detail of the device of figure 1, in a partially opened condition, in which some details have been fractured and/or removed;
figure 11 shows a partially sectioned and split side view of figure 10.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
With reference to figures 1-11, numeral 1 indicates the compact and dampened hinge device, object of the present invention, for hatches, shutters, flaps, doors and the like, of appliances, household appliances, furniture, furnishings and the like, below collectively indicated also with the only term "appliances" alone. The device 1 comprises a first connection means 3 assigned to be fixed to an hatch or shutter for rotation of the latter between the closed and totally opened conditions of said appliance, household appliance or the like and swivelling connected, by means of a hinge pin 4, to a second connection means 5 assigned to be fixed to a structure or frame of an appliance, household appliance or the like.
The device 1 comprises at least a first elastic means 7, consisting for example in a helical spring operating in compression between the first connection means 3 and the second connection means 5, to which such spring is connected by means of transmission means comprising a spring mean and a sliding element to transmit to the first connection means 3, and then to the door, an elastic torque directed towards the closed condition of the household appliances or appliance and of the hinge device 1.
Said device 1 further comprises a damper element 11 of the linear type, for example comprising a tubular cylinder whose cavity contains a viscous fluid, a piston sliding in the cylinder and equipped with a rod protruding from the cylinder, valve and/or drawbench elements and an elastic means which applies to the piston and to the rod a moderate extension force of the rod itself with respect to the cylinder so that in the absence of opposite forces the rod protrudes to a maximum extent from the cylinder.
The damper element 11 has a longitudinal geometric axis and one of its first ends is connected to the first connection means 3, for example and as illustrated, by means of the aforementioned sliding element.
Alternatively, the damper element 11 first end can be connected to the second connection means 5 directly or through interconnecting means.
The damper element 11 second end is assigned to match with an abutment element 13 sliding in a sliding direction approximately aligned or parallel to the axis of the damper element 11. Such movement of the abutment element 13 takes place by means of a translating means 15 sliding in said sliding direction which is operated, at least in the terminal closing phase of the door and/or in other rotation phases, by at least one offset element 17 transversely fixed to the second connection means 5 at a respective predetermined distance from the hinge pin 4.
At least during the rotation of the hatch in a predetermined angular sector, for example and as illustrated in said terminal closing phase of the door, the offset element 17 matches with the translating means 15 making it slide together with the abutment element 13 into the sliding direction compressing the damper element 11 which brakes the rotation of the door in such angular sector.
The second connection means 5 carries a cam element 21 fixed to or made in the second connection means 5 and the device comprises a spinning element 23 elastically pressed in the sliding direction by a second elastic means 19 which, at least in an angular sector of the door rotation, transmits its elastic force to the cam element 21 by means of the spinning element 23.
The profile and the angular positioning of the cam element 21, which can be single or multiple, allow the second elastic means to impart to the second connection means 5, by means of the spinning element 23, a force whose intensity and whose orientation, towards closing or opening, depend on the characteristics of the compressed helical spring of the second elastic element and on the position and shape of the cam element 21 profile thanks to which it is possible to impart closing or opening forces to the door or of metastable positioning in angular sectors of the rotation of the hinge which can be determined, with great freedom, according to needs and applications. The first elastic means 7 transmits its elastic force to a connecting pin 27 fixed to the second connection means 5 at a respective predetermined distance from the hinge pin 4 and fixed to one end of a tie-rod element 29, that is the sliding element cited above, to which the first elastic means 7 is connected. This tie-rod element 29 slides approximately in the sliding direction within the first connection means 3. While the force of the first elastic means is always directed towards closure, the force of the second elastic means can be directed towards the closure or the opening and therefore it can be concordant or opposed to the strength of the first elastic means by increasing or reducing it.
The portion of the tie-rod element 29 opposite the connecting pin 27 carries or, preferably and as illustrated, has a seat element 31 bound thereto and the portion of the tie-rod element 29 carrying the connecting pin 27 has or, preferably and as illustrated, contains a support element 33 having at its own end, a rotation axis 22 of the spinning element 23, this axis 22 protrudes from the support element 33 housing holes and is slidingly engaged in slots 24 elongated in the sliding direction made in the tie-rod element 29.
The second elastic means 19 consists of a helical spring compressed between a shoulder 35 of the seat element 31 and another shoulder 37 of the support element 33. The seat element 31 houses the first end of the damper element 11 which is coaxial with the second elastic means 19.
At least the second end of the damper element 11, for example consisting of or comprising the rod thereof of the damper element 11, passes through a window 39 made in the shoulder 37 of the support element 33.
In such support element 33 is slidably housed, or along the support element 33 slides, the abutment element 13 engaged at the respective end of the translating means 15 which carries respective slots 16 elongated along the sliding direction and slidingly engaged to the rotation shaft 22 of the spinning element 23. The central portion of this rotation shaft 22 is engaged in an axial hole of the spinning element 23 and each of its side ends passes through a respective slot 16 of a translating means 15, a respective hole of the support element 33 and a respective slot 24 of the tie-rod element 29.
The first connection means 3 has a box-shaped elongated shape in the sliding direction and has at one end housings 6 for fixing the hinge pin 4 and its opposite end comprises a striker or abutment, for example consisting of its terminal face, for one end of the first elastic means 7 with helical spring. Such end or striker or abutment or face of the first connection means 3 has an opening passing through the sliding of a spring mean 43 having one end connected to the opposite end of the first elastic means 7. The other and opposite end of the spring mean 43 has a fixing pin 45, the ends of which are fixed in respective seat holes made in the end of the tie-rod element 29 opposite the end carrying the connecting pin 27. Such ends of the fixing pin 45 are also slidably housed in respective slots 44 elongated along the sliding direction and made in the end of the first connection means 3 opposite to its end carrying the housing 6 for the hinge pin 4.
Finally, the fixing pin 45 is preferably engaged in a hole or attachment of the seat element 31.
The support element 33 is made of cut sheet metal or other folded or "U" shaped squared and elongated material whose bottom or middle portion forms the respective shoulder 37 and whose ends carry holes for the rotation axis 22 of the spinning element 23.
The translating means 15 is made of cut sheet metal or other material, and a transverse dimension smaller than the space within the support element 33 which slidingly houses it and has a lateral profile approximately in side by side pairs of "V" or "L" where a pair of parallel arms houses the respective elongated slots 16 and the other pair of arms carries flat or shaped surfaces of sliding or rolling contact with the ends of the offset element 17 carrying respective sliding or rolling elements.
The abutment element 13 and the seat element 31 for the respectively second and first end of the damper element 11 are equipped with respective sliding seats parallel to the sliding direction and assigned to house an alignment rod 49.
It should be noted that the intervention sectors of the damper element 11 and of the second elastic means 19 are respectively determined by the offset element 17 and by the cam element 21 and therefore they are not necessarily correlated or linked but are completely independent. It should also be noted that, alternatively, the hinge can be connected to the appliance in an opposite way that is with the first connection means 3 fixed to the structure or frame and the second attachment means 5 fixed to the hatch while remaining within the scope of the present invention.

Claims

1) Compact and dampened hinge device for an appliance comprising a first connection means (3) assigned to be fixed to a hatch or shutter for the rotation of the latter between closed and fully opened conditions of the appliance and swivelling connected by means of a hinge pin to a second connection means (5) assigned to be fixed to the structure or frame of the appliance; said device (1) comprising at least one first elastic means (7) interconnected between the first connection means (3) and the second connection means (5) to transmit to the first connection means (3) an elastic torque directed towards the closed condition of the hinge device (1); said device (1) comprises a damper element (11) of a linear type having a longitudinal geometric axis and a first end connected to at least one of the first connection means (3) or second connection means (5) either directly or by means of an element connected thereto (3, 5), the other and second end of the damper element (11) being assigned to meet with an abutment element (13) slidable in a sliding direction aligned or parallel to the damper element (11) axis due to the effect of a translating means (15) slidable in said sliding direction and actuated, at least in the terminal closing phase of the door, by at least one offset element (17) fixed to the second connection means (5) to a respective predetermined distance from the hinge pin (4); in at least one angular sector of the door rotation, the offset element (17) meets the translating means (15) causing it to slide together with the abutment element (13) in the sliding direction compressing the damper element (11) which brakes the rotation of the door in this angular sector; the second connection means (5) carries a cam element (21) fixed to or formed in the second connection means (5) and it comprises a spinning element (23) elastically pressed in the direction of sliding by a second elastic means (19) which, at least in an angular sector of the door rotation, transmits its elastic force to the cam element (21) by means of the spinning element (23); the first elastic means (7) transmits its elastic force to a connecting pin (27) fixed to the second connection means (5) at a respective predetermined distance from the hinge pin (4) and fixed to one end of a tie-rod element (29) to which the first elastic means (7) is connected, this tie-rod element (29) slides approximately in the sliding direction along or within the first connection means (3); said device (1) being characterized in that the portion of the tie-rod element (29) opposite to the connecting pin (27) contains or bears a housing element (31) bound to it and the portion of the tie- rod element (29), bearing the connecting pin (27), contains or bears a support element (33) having at one end a rotation axis (22) of the spinning element (23), this axis (22) is slidingly engaged in slots (24) elongated in the sliding direction and formed in the tie-rod element (29); the second elastic means (19) consists of a helical spring compressed between two shoulders (35, 37), one (35) of the housing element (31) and the other (37) of the support element (33).
2) Device according to claim 1 characterized in that the housing element (31) houses the first end of the damper element (11) which is coaxial with the second elastic means (19), at least the second end of the damper element (11) passes through an opening (39) formed in the shoulder (37) of the support element (33), the abutment element (13) is slidably accommodated, in or slides along, the support element (33), the abutment element (13) is engaged with the respective end of the translating means (15) that has respective slots (16) elongated along the sliding direction and slidingly and engaged with the rotation axis (22) of the spinning element (23).
3) Device according to claim 1 characterized in that the first connection means (3) has a box-like shape elongated in the sliding direction and carries at one end seats (6) for fixing the hinge pin (4) and its opposite end comprises an abutment or stop for one end of the first elastic means (7) of the helical spring type and this end or abutment carries an opening for the sliding of a spring mean (43) having an end connected to the opposite end of the first elastic means (7), the remaining end of the spring mean (43) bears a fixing pin (45) the ends of which are fixed in respective seat holes formed in the end of the tie-rod element (29) opposite the end carrying the connecting pin (27).
4) Device according to claim 3 characterized in that the ends of the fixing pin (45) are slidingly housed in respective slots (44) elongated along the sliding direction and formed at the end of the first connection means (3) opposite to its end bearing the seats (6) for the hinge pin (4).
5) Device according to claim 3 characterized in that the fixing pin (45) is engaged to a hole or attachment of the housing element (31).
6) Device according to claim 1 characterized in that the support element (33) is made of cut sheet metal or other material folded or shaped like a squared and elongated“U” whose bottom or middle portion forms the respective shoulder (37) and the whose ends have holes for the rotation axis (22) of the spinning element (23); the translating means (15) is made of cut sheet metal or other material and has a transverse dimension smaller than the space inside the support element (33) which house it (15) in a sliding manner and said translating means (15) has a profile approximately of "V" or "L", an arm of the translating means (15) houses the respective elongated slots (16) and the other arm carries flat or shaped surfaces for sliding or revolving abutment with the ends of the offset element (17) having respective sliding or rolling elements.
7) Device according to claim 1 characterized in that the abutment element (13) and the housing element (31) for the ends respectively second and first of the damper element
(11) are provided with respective seats parallel to the sliding direction and assigned to slidingly house an alignment rod (49).
EP20732492.2A 2019-05-17 2020-05-15 Compact and dampened hinge device Active EP3969708B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102019000006985A IT201900006985A1 (en) 2019-05-17 2019-05-17 COMPACT AND DAMPED HINGE DEVICE
PCT/EP2020/063738 WO2020234198A1 (en) 2019-05-17 2020-05-15 Compact and dampened hinge device

Publications (2)

Publication Number Publication Date
EP3969708A1 true EP3969708A1 (en) 2022-03-23
EP3969708B1 EP3969708B1 (en) 2023-07-12

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ID=67734770

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Application Number Title Priority Date Filing Date
EP20732492.2A Active EP3969708B1 (en) 2019-05-17 2020-05-15 Compact and dampened hinge device

Country Status (5)

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EP (1) EP3969708B1 (en)
ES (1) ES2953880T3 (en)
IT (1) IT201900006985A1 (en)
PL (1) PL3969708T3 (en)
WO (1) WO2020234198A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102510774B1 (en) * 2021-11-15 2023-03-17 서원코리아 주식회사 Door hinge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20060308A1 (en) * 2006-04-21 2007-10-22 Nuova Star Spa HINGE FOR DOORS OR DOORS
EP3073038B1 (en) * 2015-03-26 2018-09-12 Nuova Star S.p.A. Hinge for doors of electrical household appliances

Also Published As

Publication number Publication date
EP3969708B1 (en) 2023-07-12
PL3969708T3 (en) 2024-01-29
ES2953880T3 (en) 2023-11-16
IT201900006985A1 (en) 2020-11-17
WO2020234198A1 (en) 2020-11-26

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