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
  • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
  • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
  • E05F5/10—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D7/00—Hinges or pivots of special construction
  • E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
  • E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
• • 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
  • E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
• • 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
  • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
  • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
  • E05F3/104—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with cam-and-slide transmission between driving shaft and piston within the closer housing
• • 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
  • E05Y2201/60—Suspension or transmission members; Accessories therefore
  • E05Y2201/622—Suspension or transmission members elements
  • E05Y2201/624—Arms
  • E05Y2201/626—Levers
• • 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
  • E05Y2201/60—Suspension or transmission members; Accessories therefore
  • E05Y2201/622—Suspension or transmission members elements
  • E05Y2201/638—Cams; Ramps
• • 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

Definitions

• the present invention relates to the technical field concerning hinges and refers to a hinge device with damping of the closing or opening end speed and optionally having pre-fixed angular sectors of elastic opening and/or closure, for equipment, such for example household appliances, and for doors, windows and furnishings, with hatches, doors, flaps or swinging doors around vertical or horizontal hinge axis, capable of imparting to these hatches prefixed speed damping forces and elastic closing and/or opening forces, particularly, but not exclusively suitable for refrigerators.
• the known hinges for doors of vertical refrigerators are usually each constituted by a bracket fixed to the frame or body of the refrigerator and having a vertical axis hole for a vertical hinge pin that engages in a respective cylindrical seat with vertical axis fixed to the door or refrigerator door.
• An object of the present invention is to propose a hinge device for refrigerators and furniture with a vertical hinge axis that, at the same time, is very compact so that it can also be installed in current refrigerators, appliances and furnishings and able to dampen the speed of the end closing stroke of the door.
• Another object is to propose a configurable hinge device for damping the end opening speed of the door.
• a further object is to provide a device fit for applying to the door a resilient force for closing and/or opening or metastable positioning in angular sectors or in predeterminable angular positions.
• Another object is to propose a device capable of braking the door homogeneously or according to the door angle.
• a further object is to propose a device capable of braking the angular speed of the door.
• Another object is to propose a device that can be installed in equipment and furnishings with one or more doors or doors with vertical rotation axis, such as refrigerators and some vertical furnishings, or horizontal, such as ovens, cockpit fridges and furniture with flap doors.
• the present invention comprises parts and elements which simultaneously carry out several operative functions, contributing synergistically to the reduction of overall dimensions and costs.
• Figure 1 shows an axonometric view of two examples of the hinge device for equipment and furniture with damping of the closing speed, object of the present invention, associated with the upper portions of two doors of a refrigerator appliance;
• Figure 2 shows an enlarged view of a detail of Figure 1 in which one of the two devices is shown;
• FIG. 3 shows an axonometric view, from a different point of view, of the device of Figure 2 in which some details have been removed to better highlight others;
• Figure 4 shows an axonometric and exploded view of the device of Figure 2
• Figures 5-7 show top orthogonal views of the device of Figure 2 associated with a portion of door, under end closure conditions, or in the absence of door seal gaskets, of intermediate opening or at about 45° and completely open or about 135°;
• Figures 8-11 show top orthogonal views of the device of Figure 2 associated with a door portion and in which some details have been removed to better highlight others, of end closure, of initial opening or of about 10°, of greater opening or of about 30° and completely open or of about 135°;
• Figures 12 and 13 show enlarged and sectioned details of details of Figures 8 and 9 respectively;
• Figures 14-17 show axonometric views of the device of Figure 2 associated with a portion of a door and in which some details have been removed to better highlight others in the same or similar conditions of Figures 8-11.
• numeral 1 indicates the hinge device for equipment and furnishings with damping of the closing speed and with pre-fixed angular sectors for elastic opening and/or closing for refrigerators, for other household appliances and in general for equipment and furnishings, with one or more flaps or doors A, for example with a vertical or horizontal rotation axis, object of the present invention (and for the sake of brevity, also referred to as a hinge device or simply a device);
• the term refrigerator will be used to indicate generally also other household appliances, apparatus and furnishings such as electric, gas and microwave ovens, dishwashers, kitchen cupboards, fixtures, furniture and the like.
• the hinge device 1 comprises, in an operating condition of assembly to the refrigerator or apparatus, a first element 3, consisting of a metal frame, for example in the form of a box or shaped plate, fixed to a body F of the apparatus and a second element 5 fixed to a door D of said apparatus or formed in this door D where these elements first 3 and second 5 are mutually connected by a hinge pivot 7 for the rotation of the door around the longitudinal geometric axis of said hinge pivot 7 between opening A and closing C conditions.
• a first element 3 consisting of a metal frame, for example in the form of a box or shaped plate, fixed to a body F of the apparatus and a second element 5 fixed to a door D of said apparatus or formed in this door D where these elements first 3 and second 5 are mutually connected by a hinge pivot 7 for the rotation of the door around the longitudinal geometric axis of said hinge pivot 7 between opening A and closing C conditions.
• the second element 5 consists of a small metal plate fixed to the upper, lower or lateral edge of the respective door D for example by means of the hinge pivot 7 and/or a second rotation pin 19, better identified in the following, fixed or screwed to the door D; alternatively or additionally, this small metal plate can be fixed to the door by glue or resin. Alternatively, the second element 5 can be integrated or incorporated into the door D or wing.
• Said device 1 comprises a crank means 11 of approximately disk-shaped form and connected to the frame of the first element 3 by one of its 11 first rotation pin 13 almost central to the crank means 11 itself.
• the first rotation pin 13 is parallel to the hinge pivot 7 and is perpendicular to the geometric plane of the crank means 11.
• the crank means 11 can be, for example, made of bent and sheared sheet metal.
• the device 1 also comprises a connecting rod means 17, for example, made of bent and sheared sheet and having an approximately "S" shaped form, having an end rotatably connected to the second element 5 through said second rotation pin 19 which is parallel and spaced apart from the hinge pivot 7.
• This connecting rod means 17 is also rotatably connected to the crank means 11 by means of a third rotation pin 21 parallel and distanced from the first rotation pin 13.
• the figures illustrate the device configured to dampen the speed of the terminal rotation section for closing the door or leaf and the third rotation pin 21 is located, with respect to the first rotation pin 13, on the same side as the hinge pivot 7.
• the portion of the connecting rod means 17 carrying the third rotation pin 21 has an arm means 27, for example consisting in an elongation or protrusion of the connecting rod means 17 itself, protruding with respect to the third rotation pin 21 in the opposite direction to the second rotation pin 19 or at least approximately parallel to the longitudinal development of the connecting rod means 17.
• the arm means 27 can be approximately aligned with the geometric line connecting the second rotation pin 19 to the third rotation pin 21.
• the arm means 27 is assigned to move in one of its closing directions at the end portion of the closing rotation of the door D.
• an arm means 27 closure direction may be approximately tangent to the crank means 11 and/or parallel to the door or flap D closed and/or almost closed.
• the device 1 comprises a damper means 31 of the linear type housed in a respective housing means 33, and is opposed to the second rotation pin 19 with respect to the first rotation pin 13 and is approximately oriented parallel to said closure direction of the arm means 27 which, during said movement, abuts with a mobile member 37 of the damper means 31, damping the translation of the connecting rod means 17 and the rotation of the end portion for closing the door.
• the arm means 27 can be oriented so that, during the end portion of the closing rotation of the door D, its 27 longitudinal extension is approximately perpendicular to the direction of its own closing movement or to the longitudinal axis of the damper means 31 or this extension is slightly inclined towards the damper means 31 and during this rotation portion, the movement of the arm means 27 has a component in accordance with the compression direction of the damper means 31.
• the housing means 33 has a hollow housing 57 for the damper means 31 which can be partially closed by a closure means 51 which prevents the damper means 31 from coming out of the hollow housing 57 and which is provided with a window for the free passage of the arm means 27.
• the linear damper means 31 can be, for example, of the type having an internally provided body with a chamber having a fluid and in which a piston equipped with a stem projecting externally from the body and where an elastic means pushes the stem outwards the chamber and the fluid acts with viscous friction onto the piston;
• the mobile member 37 of the damper means 31 can consist, for example, in the external head of the stem or, as shown in the figures, in the body of the damper means.
• the invention provides, for example, that the third rotation pin 21 is connected to the half of the crank means 11 opposite to the hinge pivot 7 with respect to the first rotation pin 13, that the damper means 31 is on the same side as the hinge pivot 7 with respect to the first rotation pin 13 and that the arm means 27 is bent to meet with the movable part of the damper means 31 to dampen the end portion of the end opening rotation of the door where such opening and closing damping functions can also be implemented with other equivalent arrangements of the device elements.
• the device 1 comprises a resilient means 15, for example consisting of a helical spring operating in elongation, connected to the first element 3 and acting on the crank means 11 to transmit to the latter a respective elastic force acting in closing and/or in openings of the door D.
• a resilient means for example consisting of a helical spring operating in elongation
• the resilient means 15 can act directly onto the crank means 11, for example through a connection pin, but preferably and to modulate the action of the elastic force on the door, the resilient means 15 acts on the crank means 11 by means of the connection of one of its 15 ends, opposite to that connected to the first element 3, at one end of a rocker arm 45 centrally connected to the first element 3 by means of a respective fulcrum pin 47 parallel to the hinge pivot 7 and having, at opposite end, a rolling means 49, for example consisting of an idle wheel, with an axis of rotation parallel to the hinge pivot 7 and rolling on a shaped peripheral edge cam 43 of the crank means 11, as shown in the figures. Therefore the peripheral edge cam 43, of the crank means 11, can be shaped so that the rolling means transmits elastic forces directed towards the closure, the opening or to realize metastable positions of the door.
• the peripheral edge cam 43 of the crank means 11, at the position of the rolling means 49 in at least one of the end portions for opening and closing said edge, has a corresponding shaping, for example with recess, to impart to the crank means 11 a force respectively for opening or closing the door D.
• the resilient means 15 is connected to the first element 3 by fixing one of its 15 ends, opposite to that connected to the rocker arm, to a lever means 35 rotatably connected to the first element 3 through a respective fulcrum pin 38 parallel to the hinge pivot 7.
• the housing means 33 of the damper means 31 is fixed to the lever means 35 and the crank means 11 has an edge 39 hemmed or rimmed, of an approximately arc shape intended to slide with friction on a friction surface 41 of the housing means 33 where the resilient means 15 transmits to the lever means 35 an elastic force which maintains said friction surface 41 in abutment with said edge 39.
• the housing means 33 is made of synthetic material, plastic, simple or reinforced resin, or in alloy, for example zamak, and its friction surface 41 can be treated or coated with friction material so as to determine the friction coefficient according to the specific use requirements of the device.
• the static and dynamic clutches between the rimmed edge 39 and the friction surface 41 brake the door and, if appropriate, can stabilize its position in any angular position.
• the invention provides that it is possible to shape the rimmed edge 39 to modulate the braking effect as a function of the opening angle of the door or flap.
• crank means 11 is constituted by two nearly equal, parallel and spaced apart disc- shaped bodies and the connecting rod means 17 is placed between them; this arrangement allows to increase the contact and friction surface between the double edge 39 and the friction surface 41 and at the same time avoids excessive warping of the connecting rod means 17.

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=64427114

Family Applications (1)

Country Status (3)

Cited By (2)

Citations (5)

Family Cites Families (6)

• 2019
  • 2019-09-12 EP EP19766027.7A patent/EP3850178B1/de active Active
  • 2019-09-12 CN CN201980059010.3A patent/CN112739881B/zh active Active
  • 2019-09-12 WO PCT/EP2019/074402 patent/WO2020053352A1/en unknown

Patent Citations (5)

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