WO2007107848A2 - Balanced hinge device - Google Patents

Balanced hinge device Download PDF

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Publication number
WO2007107848A2
WO2007107848A2 PCT/IB2007/000688 IB2007000688W WO2007107848A2 WO 2007107848 A2 WO2007107848 A2 WO 2007107848A2 IB 2007000688 W IB2007000688 W IB 2007000688W WO 2007107848 A2 WO2007107848 A2 WO 2007107848A2
Authority
WO
WIPO (PCT)
Prior art keywords
fact
condition
stop means
door
rod
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.)
Ceased
Application number
PCT/IB2007/000688
Other languages
French (fr)
Other versions
WO2007107848A3 (en
Inventor
Eros Gherardi
Ermes Degli Esposti
Teresa Ghedini
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 SRL
Original Assignee
CMI 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 SRL filed Critical CMI SRL
Priority to PL07734023T priority Critical patent/PL1999329T3/en
Priority to EP07734023.0A priority patent/EP1999329B1/en
Priority to ES07734023.0T priority patent/ES2634525T3/en
Publication of WO2007107848A2 publication Critical patent/WO2007107848A2/en
Publication of WO2007107848A3 publication Critical patent/WO2007107848A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • 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 refers to technical field of hinges, and refers to a balanced hinge device with horizontal rotation axis, particularly for household-electric appliances such as oven or similar.
  • Hinges are known for door rotation around a corresponding horizontal axis from a closed condition, in which such door is vertical, into an opened condition in which the door is descended into an almost horizontal position.
  • Some of said known hinges have the disadvantage to allow the door rotation for gravity towards the opening condition at excessive speed with user's risks and of household damages.
  • Some of such known hinges have elastic means fit to reduce the whole force acting on the door, but said hinges can have excessive dimensions and bulk.
  • An object of the present invention is to propose a balanced hinge device, fit for avoiding that the force weight load on the door and fit for reducing the opening door speed.
  • Another object is to propose a device providing a solid stop of the door, even if much heavy, in the end opening condition.
  • figure 1 shows a schematic lateral view of the balanced hinge device, object of the present invention, associated to a structure and to a door of an household-electric appliance, illustrated in dotted line, in an operating closing condition and in which some parts have been removed for better evidencing some others;
  • figure 2 shows a portion of the device observed by a 90° view with respect to that of figure 1;
  • - figure 3 shows a view of the device of figure 1 in partial opening condition;
  • figure 4 shows a view of the device of figure 1 in end opening condition.
  • the balanced hinge device provided with connecting members first 51 and second 52 mutually connected through a rotation pin 60 whose rotation axis is almost horizontal and inferior to the closed door C.
  • the first connecting member 51 is fit to be fixed to a respective structure 54, as the chassis or the body of a household-electric appliances, such as a dishwasher or an oven.
  • the second connecting member 52 is fit to be fixed to the corresponding door 53 of the household-electric appliance for the its rotation between the end closing C and opening A conditions.
  • the door at the closing condition C and the opening condition A is respectively almost vertical and approximately horizontal.
  • the device 1 comprises elastic means 59, fixed stop means 55 and rod means 56.
  • Such rod means 56 has, at an external end, a mobile stop means 57 and, to the other end, it has fixing means 58 consisting in a shaped slot 61 fit to engage a groove of an hooking pin 62 rigidly fixed to the second connecting member 52. In the closing condition C, the hooking pin 62 is positioned upwardly to the rotation pin 60.
  • the fixed stop means 55 is connected to the first connecting member 51 and, preferably, is made by bending a portion of the shaped metallic sheet of such first connecting member 51.
  • the elastic means 59 are interposed and compressed between fixed stop means 55 and mobile means 57 so that such elastic means 59 supply a contrast force to the door weight at least in the opening, intermediate and opening conditions.
  • a median portion of the rod means 56 for example of flat shaped and obtained by cutting a sheet, is freely slidingly housed into an opening 63 of the fixed stop means 55 which also allow a small oscillation motion to the same rod means.
  • the fixing means 58 of the rod means 56 and the fixed stop means 55 define one straight line tilted with respect to the vertical and to the horizontal and spaced by the rotation pin 60.
  • the fixed stop means 55 is plate shaped and is approximately perpendicular to said straight line defined by the medium position of the rod means 56.
  • the elastic means 59 comprise two compressed coil springs 64, 65 wrapped around corresponding guide means 66 61 constituted by lengthen elements and mutually parallels to the rod means 56. Such solution contributes also in reducing the bulk of the device.
  • the mobile stop means 57 comprises a cap means 68, 69 for the end of each guide means 66, 67 and is blocked thereto by joint means 70 engaged in corresponding holes of the mobile stop means 57 and in grooves made in the end of each guide means 66, 67.
  • the connecting members first 51 and second 52 are equipped with corresponding stop means 71, 72 fit for mutually matching at said end opening condition A.
  • the operation of the device comprises that, starting from the closing, the rod means 56 compresses the springs and transmits the elastic force to the second connecting member 52 through the hooking pin 62. In such a way the second connecting member and the door are subjected to a counteracting force of the opening force produced by the door weight.
  • the intensity of the counteracting force depends on the force produced by the springs and the rotating arm whose length almost corresponds to the distance between the rotation pin 60 and the straight line almost parallel to the spring guides and passing through the hooking pin 62. Therefore the length of the action arm and the intensity of the counteracting force vary in function of the opening angle and the position of the hooking pin of 62 can be chosen in order to optimize of the action.
  • An advantage of the present invention is to supply a balanced hinge device, fit for avoiding that the force weight load on the door and fit for reducing the opening door speed.
  • a further advantage is to supply a device of small dimensions but also suitable for large and heavy doors.

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)

Abstract

A balanced hinge device (1) having connecting members first (51) and second (52) mutually connected and fit to be fixed respectively to a corresponding structure (54) and to a corresponding door (53) for the rotation of this latter between the end closing (C) and opening (A) conditions. In an operating condition of the structure (54), said door (53) is almost vertical at closing condition (C) and is approximately horizontal in the opening condition (A). Said device (1) comprises at least elastic means (59), fixed stop means (55) and rod means (56) having, at its end, at least a mobile stop means (57) and, at the other end, fixing means (58). The fixed stop means (55) is connected to the first connecting member (51) and the fixing means (58),of the rod means (56), is connected to the second connecting member (52) or vice versa. The elastic means (59) is interposed between the fixed stop means (55) and mobile (57) so that such elastic means (59) supply a counteracting force to the door weight in the opening, intermediate and end conditions.

Description

BALANCED HINGE DEVICE
TECHNICAL FIELD
The present invention refers to technical field of hinges, and refers to a balanced hinge device with horizontal rotation axis, particularly for household-electric appliances such as oven or similar.
BACKGAROUND ART
Hinges are known for door rotation around a corresponding horizontal axis from a closed condition, in which such door is vertical, into an opened condition in which the door is descended into an almost horizontal position.
Some of said known hinges have the disadvantage to allow the door rotation for gravity towards the opening condition at excessive speed with user's risks and of household damages.
Some of such known hinges have elastic means fit to reduce the whole force acting on the door, but said hinges can have excessive dimensions and bulk.
DISCLOSURE OF THE INVENTION
An object of the present invention is to propose a balanced hinge device, fit for avoiding that the force weight load on the door and fit for reducing the opening door speed.
Further purpose is to propose a device of small dimensions but also designed for large and heavy doors.
Other object is to propose a device providing a solid stop of the door, even if much heavy, in the end opening condition.
Further object is to propose a simple device, extremely reliable, without regulations with an easy and fast assembly to the household electric appliance and its door.
The objects above indicated are obtained according to the content of the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The characteristics of the present invention are evidenced in the following with reference to the attached drawings, in which: figure 1 shows a schematic lateral view of the balanced hinge device, object of the present invention, associated to a structure and to a door of an household-electric appliance, illustrated in dotted line, in an operating closing condition and in which some parts have been removed for better evidencing some others; figure 2 shows a portion of the device observed by a 90° view with respect to that of figure 1; - figure 3 shows a view of the device of figure 1 in partial opening condition; figure 4 shows a view of the device of figure 1 in end opening condition.
With reference to the figures from 1 to 4, with 1 is indicated the balanced hinge device provided with connecting members first 51 and second 52 mutually connected through a rotation pin 60 whose rotation axis is almost horizontal and inferior to the closed door C.
The first connecting member 51 is fit to be fixed to a respective structure 54, as the chassis or the body of a household-electric appliances, such as a dishwasher or an oven. The second connecting member 52 is fit to be fixed to the corresponding door 53 of the household-electric appliance for the its rotation between the end closing C and opening A conditions.
In an operating condition of the structure 54, the door at the closing condition C and the opening condition A is respectively almost vertical and approximately horizontal.
The device 1 comprises elastic means 59, fixed stop means 55 and rod means 56.
Such rod means 56 has, at an external end, a mobile stop means 57 and, to the other end, it has fixing means 58 consisting in a shaped slot 61 fit to engage a groove of an hooking pin 62 rigidly fixed to the second connecting member 52. In the closing condition C, the hooking pin 62 is positioned upwardly to the rotation pin 60.
The fixed stop means 55 is connected to the first connecting member 51 and, preferably, is made by bending a portion of the shaped metallic sheet of such first connecting member 51.
The elastic means 59 are interposed and compressed between fixed stop means 55 and mobile means 57 so that such elastic means 59 supply a contrast force to the door weight at least in the opening, intermediate and opening conditions.
A median portion of the rod means 56, for example of flat shaped and obtained by cutting a sheet, is freely slidingly housed into an opening 63 of the fixed stop means 55 which also allow a small oscillation motion to the same rod means. In the operating condition, the fixing means 58 of the rod means 56 and the fixed stop means 55 define one straight line tilted with respect to the vertical and to the horizontal and spaced by the rotation pin 60.
The rod means 56 in the passage by the closing condition C to the openings condition A and vice versa, being centrally forced to slide into the opening 63 of the fixed stop means
55 and having the end supporting the bound fixing means 58 fit to describe circumference arches centred in the rotation pin 60, oscillate around a medium position defining a straight line that forms an angle with the vertical comprised between 20° and 50°, preferably approximately 35°. Such preferential angle minimize the oscillations and contributes to the reduction of the bulk of the device 1.
The fixed stop means 55 is plate shaped and is approximately perpendicular to said straight line defined by the medium position of the rod means 56.
The elastic means 59 comprise two compressed coil springs 64, 65 wrapped around corresponding guide means 66 61 constituted by lengthen elements and mutually parallels to the rod means 56. Such solution contributes also in reducing the bulk of the device.
The mobile stop means 57 comprises a cap means 68, 69 for the end of each guide means 66, 67 and is blocked thereto by joint means 70 engaged in corresponding holes of the mobile stop means 57 and in grooves made in the end of each guide means 66, 67.
For a sure stop in the end opening A5 the connecting members first 51 and second 52 are equipped with corresponding stop means 71, 72 fit for mutually matching at said end opening condition A.
The operation of the device comprises that, starting from the closing, the rod means 56 compresses the springs and transmits the elastic force to the second connecting member 52 through the hooking pin 62. In such a way the second connecting member and the door are subjected to a counteracting force of the opening force produced by the door weight.
The intensity of the counteracting force depends on the force produced by the springs and the rotating arm whose length almost corresponds to the distance between the rotation pin 60 and the straight line almost parallel to the spring guides and passing through the hooking pin 62. Therefore the length of the action arm and the intensity of the counteracting force vary in function of the opening angle and the position of the hooking pin of 62 can be chosen in order to optimize of the action.
An advantage of the present invention is to supply a balanced hinge device, fit for avoiding that the force weight load on the door and fit for reducing the opening door speed.
A further advantage is to supply a device of small dimensions but also suitable for large and heavy doors.
Other advantage is to supply a device designed to assure a solid stop of the door, also much heavy, in the end opening condition.
Further advantage is to supply a simple device, extremely reliable, without regulations and of easy and fast assemblage to the household-electric appliance and its door.

Claims

1) Balanced hinge device (1) having connecting members, first (51) and second (52), mutually connected and fit to be fixed respectively to a corresponding structure (54) and a corresponding door (53) for the rotation of this latter between the end closing
(C) and opening (A) condition in which said door (53), in an operating condition of the structure (54), is respectively almost vertical and approximately horizontal; said device (1) is characterized by the fact to comprises at least elastic means (59), fixed stop means (55) and rod means (56) having, at its end, at least a mobile stop means (57) and, to the other end, fixing means (58), the fixed stop means (55) being connected to the first connecting member (51) and fixing means (58) of the rod means (56), being connected to the second connecting member (52) or vice versa; the elastic means (59) are interposed between the stop means fixed (55) and mobile (57) so that such elastic means (59) at least supply to the rod means (56) a force counteracting the door weight at least in the intermediate and end opening conditions.
2) Device according to claim 1 characterized by the fact that the connecting members, first (51) and second (52), are mutually connected through a rotation pin (60) whose rotation axis is almost horizontal and lower to the door in closure condition(C). 3) Device according to claim 1 characterized by the fact that the rod means (56) is freely slidingly into an opening (63) of fixed stop means (55).
4) Device according to claim 1 characterized by the fact that the fixing means (58) of the rod means (56) comprises a slot (61) engaged in an hooking pin (62) fixed to the second connecting member (52) or vice versa.
5) Device according to claim 2 characterized by the fact that, in the operating condition, the fixing means (58) of rod means (56) and the fixed stop means (55) defines a straight line tilted with respect to the vertical and to the horizontal and spaced from the rotation pin (60).
6) Device according to claims 4 and 5 characterized by the fact that in closing condition (C), the coupling pin(62) is placed up to the rotation pin (60). 7) Device according to claim 1 or claim 5 characterized by the fact that the rod means
(56) is lengthened shaped and, passing from the closing condition (C) to the openings condition (A) and vice versa, oscillates around a medium position defining a straight line forming an angle with the vertical line comprised between 20° and 50°, preferably of approximately 35°.
8) Device according to claim 7 characterized by the fact that the fixed stop means (55) is plate shaped and nearly perpendicular to the straight line defined by the medium position of the rod means (56).
9) Device according to claim 1 or claim 8 characterized by the fact that the fixed stop means (55) is carried out by bending a portion of the first connecting member (51).
10) Device according to claim 1 characterized by the fact that the elastic means (59) comprises at least two helicoidal compressed springs (64, 65) wrapped around the corresponding guide means (66 , 67) of the rod means(56).
11) Device according to claim 10 characterized by the fact that the guide means (66, 67) are made by lengthen elements mutually parallel.
12) Device according to claim 11 characterized by the fact that the mobile stop means
(57) comprises a cap means (68, 69) for the ends of each guide means (66, 61) and is blocked thereto by joint means (70) engaged in corresponding holes of the mobile stop means (57) and in grooves carried out in the ends of each guide means (66, 61).
13) Device according to claim 1 characterized in that the connecting members first (51) and second (52) have corresponding stop means (71, 72) fit for mutually matching the end opening condition (A).
PCT/IB2007/000688 2006-03-20 2007-03-19 Balanced hinge device Ceased WO2007107848A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL07734023T PL1999329T3 (en) 2006-03-20 2007-03-19 Balanced hinge device
EP07734023.0A EP1999329B1 (en) 2006-03-20 2007-03-19 Balanced hinge device
ES07734023.0T ES2634525T3 (en) 2006-03-20 2007-03-19 Balanced hinge device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000198A ITBO20060198A1 (en) 2006-03-20 2006-03-20 BALANCED HINGE DEVICE.
ITBO2006A000198 2006-03-20

Publications (2)

Publication Number Publication Date
WO2007107848A2 true WO2007107848A2 (en) 2007-09-27
WO2007107848A3 WO2007107848A3 (en) 2007-12-06

Family

ID=38293359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/000688 Ceased WO2007107848A2 (en) 2006-03-20 2007-03-19 Balanced hinge device

Country Status (6)

Country Link
EP (1) EP1999329B1 (en)
ES (1) ES2634525T3 (en)
IT (1) ITBO20060198A1 (en)
PL (1) PL1999329T3 (en)
RU (1) RU2435920C2 (en)
WO (1) WO2007107848A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190169904A1 (en) * 2016-05-13 2019-06-06 Unind (Shenzhen) Co., Limited Silent spring hinge
US10501976B2 (en) * 2016-05-13 2019-12-10 Unind (Shenzhen) Co., Limited Gear structure spring hinge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187374A (en) * 1963-12-17 1965-06-08 Weber Knapp Co Hinge mechanism
IT1042729B (en) * 1974-11-22 1980-01-30 Gronbach Wilhelm HINGE WITH PRESSURE SPRING FOR THE COMPENSATION OF THE WEIGHT OF STRIPS OR COVERS
US3902220A (en) * 1974-12-05 1975-09-02 Weber Knapp Co Lid counterbalance mechanism
DE4108816A1 (en) * 1991-03-18 1992-09-24 Bosch Siemens Hausgeraete Door hinge for domestic electrical appliance e.g. oven - has baseplate and relatively pivoted plug-in element attached to appliance housing
ES2221111T3 (en) * 1997-11-27 2004-12-16 C.M.I. S.R.L. HINGE DEVICE, IN PARTICULAR FOR THE DOOR OF APPLIANCES AND SIMILARS, CONTRARRESTING AND SELF-REGULATING MEANS.
BR0204073B1 (en) * 2001-02-15 2012-08-07 hinge for a cooker hatch and a cooker hatch.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190169904A1 (en) * 2016-05-13 2019-06-06 Unind (Shenzhen) Co., Limited Silent spring hinge
US10501976B2 (en) * 2016-05-13 2019-12-10 Unind (Shenzhen) Co., Limited Gear structure spring hinge
US10597924B2 (en) * 2016-05-13 2020-03-24 Unind (Shenzhen) Co., Limited Silent spring hinge

Also Published As

Publication number Publication date
RU2435920C2 (en) 2011-12-10
WO2007107848A3 (en) 2007-12-06
EP1999329A2 (en) 2008-12-10
ITBO20060198A1 (en) 2007-09-21
ES2634525T3 (en) 2017-09-28
EP1999329B1 (en) 2017-05-10
PL1999329T3 (en) 2017-10-31
RU2008141375A (en) 2010-04-27

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