EP0919776A2 - Dispositif de charnière, en particulier pour une porte d'appareil électroménager ou similaire, avec équilibreur autorégulant - Google Patents
Dispositif de charnière, en particulier pour une porte d'appareil électroménager ou similaire, avec équilibreur autorégulant Download PDFInfo
- Publication number
- EP0919776A2 EP0919776A2 EP98122491A EP98122491A EP0919776A2 EP 0919776 A2 EP0919776 A2 EP 0919776A2 EP 98122491 A EP98122491 A EP 98122491A EP 98122491 A EP98122491 A EP 98122491A EP 0919776 A2 EP0919776 A2 EP 0919776A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding
- door
- frontal wall
- shaped element
- support element
- 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
Links
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 230000003042 antagnostic effect Effects 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000000750 progressive effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000005557 antagonist Substances 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/02—Doors specially adapted for stoves or ranges
- F24C15/023—Mounting of doors, e.g. hinges, counterbalancing
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4261—Connections of the door to the casing, e.g. door hinges
-
- 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
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/08—Friction devices between relatively-movable hinge parts
-
- 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
- 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 concerns the production of components for household electric appliances and the like.
- the object of the invention is an hinge device of the self-regulating type, fit to allow the articulation between the door and the related appliance body, preferably a dishwashers.
- the known hinges such as self-regulating, are fit to produce a counterbalancing action during the opening and closing phases of the door linked thereto. Every hinge is provided with a kinematic motion, moving as regards the hinge movement, including elastic means, tensile or compressive stressed, in such a way that its elastic reaction varies as regards the door position and is fit to balance the weight of the door during its opening.
- Such hinges include a series of lever elements mutually pivoted fit to constitute a mechanism providing the gradually increasing of the reaction strength of the elastic element during the door opening and so counterbalancing the moment produced by the door weight that increase as regards the increasing of the projection from the appliance frame and therefore by to increasing the lever arm.
- the main drawback of the known hinges is that to vary the counterbalancing strength exerted by the spring assembled with the appliance is necessary to replace said spring with another able to produce a suitable counterbalancing strength.
- the known hinges are provided with means fit to allow the adjustment of the counterbalancing force of the elastic means as regards the door weight.
- adjustment means are constituted by small cable that, suitably tensioned through regulation screws accessible from outside of the appliance, allow opportunely to pre-load the spring in such a way to vary its initial elastic reaction.
- the regulation systems of the hinge devices do not always allow a wide adjustment range of the counterbalancing action, therefore the same hinge is not often usable in different appliances having doors of different weights or providing for panels of different weights.
- the main object of the present invention is to propose a hinge device, fit to allow the articulation between the door and the related appliance body, having a counterbalancing self-balancing and self-regulating system, without adjustment means fit to automatically counterbalance doors of variable weight within a reasonable range
- Another object of the present invention is to propose a device of simple making, easy installation, sure and precise use.
- Said objects are archived according to the claim content.
- numeral 1 refers to a hinge device, particularly for the door of electric appliances and the like, including a coupling element 2, a support element 3, first counterbalancing means 6 and a shaped element 9.
- the coupling element 2 is fixed to the frame 10 of the hinge device 1 fixable to the structure, known and not illustrated, of each electric appliance.
- the support element 3 is pivoted to the coupling element 2 through a pivot 5 allowing the rotation.
- a joint plate 4 is fixed near to a end of the support element 3 to which the door, known and not illustrated, is fixed. Moreover, there is an abutment 20 in correspondence of the remaining end of the support element 3.
- the coupling element 2 has a frontal wall 12 interposed between the support element 3 and the shaped element 9.
- the first counterbalancing means 6 are constituted by a spring 22 interposed between the head of a rod 23 and a seat 24 therefrom the free end of the rod 23 protrudes.
- the shaped element 9 has a superior portion 9a hinged to the free end of the rod 23 and an inferior portion 9c hinged to the support element 3 through a pivot 26.
- Such shaped element 9 has middle portion 9b defining an inner contour 7 and an outer contour 8, opposed to the frontal wall 12.
- the operation of the hinge device 1 illustrated in the figures 1 and 2 is very simple, because the door opening of the appliance coupled to the support element 3 causes the passage of this latter from a closing condition C, in which the support element 3 is faced to the frontal wall 12 of the coupling element 2, and therefore the door is turned toward the body of the appliance in such a way to close the frontal opening thereof, to an extreme opening condition A, in which the longitudinal axle of the support element 3 is nearly orthogonal to the frontal wall 12, and therefore the door is almost orthogonal with the frontal opening of the appliance.
- the opening condition A is mainly limited by the abutment 20 of the support element 3 that, consequently its rotation, contacts inwardly the frontal wall 12 of the coupling element 2
- the support element 3 rotates on the pivot 5 causing the moving of the shaped element 9.
- the sliding block 13 is forced to slide with friction on the frontal wall 12 exerting thereon a friction resistance force of proportionally increasing intensity as regards the door opening and therefore as regards the passage from the closing condition C to the opening condition A.
- the rod 23 is moved downward causing the subsequent progressive compression of the spring 22 exerting an antagonist force proportionally increasing with the door opening and able to oppose the weight force.
- the combined action of the antagonist force of the first counterbalancing means 6 and the sliding with friction of the sliding block 13 along the frontal wall 12 allows a continuous balancing of the door and of a possible covering panel coupled thereto so allowing the same door to balance in correspondence of each intermediate opening angle reached by the door.
- the contact surface of the sliding block 13 with the frontal wall 12 is constituted by nylon enriched with a percentage of graphite ranging between 5% and 20%, and preferably it is of 12%, so that to increase the sliding friction between the surfaces.
- the self-regulating effect is completely reached with a whole weight of the door and/or panel varying from 6 to 10 kilograms.
- a variant of the preferred embodiment of the hinge device 1 object of the present invention includes the use of second counterbalancing means 15.
- Such second counterbalancing means 15 are fixed to the coupling element 2, next to its end opposed to the frontal wall 12, and are active with the outer contour 8 of the shaped element 9.
- These means includes a lever 17 whole oscillation plain is parallel to the moving plane of the shaped element 9.
- An end of the lever 17 is hinged, through a pivot 18, to the coupling element 2 and the remaining end is pivoted to the end of elastic means 19 while the middle portion supports an sliding element 14, directly in contact with the outer contour 8, for instance constituted by a free rolls 14a.
- the elastic means 19 include a guiding rod 19b of a helical spring 19 subjected to compression, whose free end is slidingly supported by a bracket 16 fixed to the frame 10.
- the operation of the hinge device 1, according to the variant shown in the figures 3 and 4, are identical to the operation of the preferred embodiment of figures 1 and 2, with the only difference that the second counterbalancing means 15 allow to exert a further antagonistic force on the shaped element 9 proportionally increasing in correspondence of the passage from the closing condition C to the opening condition A of the door.
- the rolls 14a rolls or, however, slides on the outer contour 8, particularly from the middle portion 9b toward the superior portion 9a, causing the rotation of the lever 17 around the pivot 18 and therefore the crushing, that is the compression, of the spring 19a onto the bracket 16 which transmits an equal and contrary force to such stress to the shaped element 9 for interposition of the roll 14a.
- the shaped element 9 is subjected to a further antagonist force opposing the movement thereof during the passage from the closing condition C to the extreme opening condition A and therefore increases the force against the weight force of the door and/or of the optional covering panel applied thereto.
- the self-regulating effect is completely reached for a total weight of the door and/or of the panel varying from 6 to 14 kilograms.
- sliding element 14 can also be constituted by a sliding block 14a which slides or however runs on the outer contour 8.
- this hinge device 1 a self-balancing condition of the weight of the door and/or of the panel-door is reached without using any adjustment means of antagonistic force of the counterbalancing means, so making a hinge device completely self-regulating for a wide range of the weight of the door and the door together with the covering panel.
- the antagonistic force of the first counterbalancing means 6 and the further antagonist force of the second counterbalancing means 15 vary proportionally to the opening angle of the door and therefore increase in the passage from the closing C to opening A conditions, and decrease in the inverse passage, however always proportionally respectively to the increase or to the decrease of weight force of the door or of the door with the covering panel.
- the figures 5 and 6 illustrate a second embodiment of the hinge device 1 previously described, in which the inner contour 7 of the shaped element 9 is almost cycloidal and has an abutment 33 near the end of the superior portion 9a, and moreover is slidingly driven by the sliding means 30 constituted by a free roll 11 supported by the coupling element 2, while the outer contour 8 is almost rectilinear.
- the portion of the shaped element 9 included between the middle portion 9b and the second end 9c has a recess 21.
- the operation of the hinge device 1 of this second embodiment is identical to the operation of the preferred embodiment with the exception that the extreme opening A condition is not only mainly caused by the abutment 20 of the support element 3 that, subsequently its rotation, inwardly contacts the frontal wall 12 of the coupling element 2, but also because the recess 21 of the shaped element 9 is conformed in such a way to lean firmly on the pivot 5 and the abutment 33 is fit to contact the external surface of the roll 11.
- a variant of the second embodiment of the hinge device 1 includes the use of the second counterbalancing means 15 similar to those of the preferred embodiment with the exception that the lever 17 is pivoted to the pivot 18 in its central zone, one of its end is bound to the elastic means 19 while the free end rotatingly supports the free roll 14a.
- the elastic means 19 are constituted by a spring 19a whose ends are fixed respectively to the lever 17 end and to a bracket 16 hook so that the spring 19a works in traction.
- the elastic means 19 can be fixed to the lever 17 between the pivot 18 and the free end of this latter, supporting the sliding element 14, so that the spring 19a of the elastic means 19 works in compression rather than in traction
- the main advantage of the present invention is therefore to furnish a hinge device, designed to allow the articulation between the door and the body of a related appliance, fitted with a counterbalancing system of the self-adjusting and self-balancing type, without adjustment means, able to counterbalance doors of weight varying automatically within a reasonable but wide range.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Hinges (AREA)
- Extensible Doors And Revolving Doors (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO970689 | 1997-11-27 | ||
IT97BO000689 IT1296566B1 (it) | 1997-11-27 | 1997-11-27 | Dispositivo di cerniera, in particolare per il portello di apparecchi elettrodomestici e simili, con sistema di controbilanciamento |
IT98BO000490 IT1304476B1 (it) | 1998-08-06 | 1998-08-06 | Dispositivo di cerniera, in particolare per il portello di apparecchielettrodomestici e simili, con sistema di controbilanciamento a |
ITBO980490 | 1998-08-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0919776A2 true EP0919776A2 (fr) | 1999-06-02 |
EP0919776A3 EP0919776A3 (fr) | 2001-11-07 |
EP0919776B1 EP0919776B1 (fr) | 2004-05-26 |
Family
ID=26330368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98122491A Expired - Lifetime EP0919776B1 (fr) | 1997-11-27 | 1998-11-27 | Dispositif de charnière, en particulier pour une porte d'appareil électroménager ou similaire, avec équilibreur autorégulant |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0919776B1 (fr) |
DE (1) | DE69824122T2 (fr) |
ES (1) | ES2221111T3 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1840309A1 (fr) * | 2006-03-29 | 2007-10-03 | Hetal-Werke Franz Hettich GmbH & Co. KG | Support de volet d'un meuble |
WO2007107848A3 (fr) * | 2006-03-20 | 2007-12-06 | Cmi Srl | Dispositif de charnière équilibrée |
EP1764557A3 (fr) * | 2005-09-14 | 2017-10-18 | C.M.I. S.r.l. | Charnière de porte compacte |
EP2912984B1 (fr) * | 2014-02-28 | 2017-11-15 | Nuova Star S.p.A. | Charnière pour portes d'appareils ménagers |
EP2678469A4 (fr) * | 2011-02-24 | 2018-03-14 | LG Electronics Inc. | Appareil de traitement du linge |
IT201800009511A1 (it) * | 2018-10-16 | 2020-04-16 | Cmi Cerniere Mecc Industriali Srl | Dispositivo a cerniera con fermo labile in posizione di parziale apertura |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2086667B1 (fr) | 2006-11-10 | 2012-06-27 | innostarter AG | Moussage d'aliments liquides |
PL2116167T3 (pl) | 2008-05-08 | 2012-05-31 | Electrolux Home Products Corp Nv | Zmywarka wyposażona w środki tłumiące dla tłumienia zamykania drzwiczek |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3450125A (en) * | 1966-05-24 | 1969-06-17 | Kelvinator Inc | Counterbalanced hinge for oven doors |
US3603658A (en) * | 1969-05-01 | 1971-09-07 | Maytag Co | Latch for dishwasher door |
US4269165A (en) * | 1979-06-11 | 1981-05-26 | Mitchell Industries, Inc. | Oven hinge |
EP0565809B1 (fr) * | 1992-04-17 | 1996-10-09 | NUOVA STAR S.r.l. | Charnière perfectionnée pour mettre en contrainte des portes sur une structure de support |
-
1998
- 1998-11-27 ES ES98122491T patent/ES2221111T3/es not_active Expired - Lifetime
- 1998-11-27 DE DE69824122T patent/DE69824122T2/de not_active Expired - Lifetime
- 1998-11-27 EP EP98122491A patent/EP0919776B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
None |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1764557A3 (fr) * | 2005-09-14 | 2017-10-18 | C.M.I. S.r.l. | Charnière de porte compacte |
WO2007107848A3 (fr) * | 2006-03-20 | 2007-12-06 | Cmi Srl | Dispositif de charnière équilibrée |
EP1840309A1 (fr) * | 2006-03-29 | 2007-10-03 | Hetal-Werke Franz Hettich GmbH & Co. KG | Support de volet d'un meuble |
EP2678469A4 (fr) * | 2011-02-24 | 2018-03-14 | LG Electronics Inc. | Appareil de traitement du linge |
EP2912984B1 (fr) * | 2014-02-28 | 2017-11-15 | Nuova Star S.p.A. | Charnière pour portes d'appareils ménagers |
IT201800009511A1 (it) * | 2018-10-16 | 2020-04-16 | Cmi Cerniere Mecc Industriali Srl | Dispositivo a cerniera con fermo labile in posizione di parziale apertura |
Also Published As
Publication number | Publication date |
---|---|
EP0919776A3 (fr) | 2001-11-07 |
DE69824122T2 (de) | 2004-10-28 |
EP0919776B1 (fr) | 2004-05-26 |
ES2221111T3 (es) | 2004-12-16 |
DE69824122D1 (de) | 2004-07-01 |
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