ES2645189T3 - Hinge device with a translation of cladding panel - Google Patents

Abstract

Hinge device for a door of household appliances and furniture in general, with a translation of door siding panel (3); said device (1) is provided with a first (4) and a second (5) mutually pivoted connection members by means of a pivot (6) and assigned to be respectively fixed to the door and to a structure or frame of the apparatus or furniture for the rotation of the door and the panel between the conditions of extreme closure (C) and opening (A), said device (1) comprising a gearwheel means (20) fixed to the second connecting member (5) and centered on the axis of rotation of the pivot pin (6) and comprises a frame means (22) that is forced to slide along the first connecting element (4) in a sliding direction (D) perpendicular to the axis of rotation of the pivot pin) and parallel to the geometric plane of the panel (3) to which said frame means (22) can be fixed by a respective fixation (23) of the device in which the gearwheel means (20) is interconnected with the frame means 22); the rotation of the door and the first connecting element (4) with respect to the second connecting element (5) between the closing (C) and opening conditions (A) causes the rotation of the gearwheel means and the consequent translation the frame medium (22) and the panel (3); said device (1) being characterized in that the first connecting element (4) has a safety means (25) for slidably accommodating the frame means (22), said seating means (25) is "U" or in in the form of a similar cross section with at least one side wall provided with guiding means (27) slidably coupled by sliding means (28) fixed to the frame means (22), said guide means (27) is a groove of elongated passage formed in the respective side wall of the sliding seating means (25) and the sliding means (28) are elongated in shape and slide longitudinally within said through slot (27) without, or with a small cross space, where the fixing (23) to the panel (3) is fixed to the frame means (22) or to the sliding means (28) by at least one screw, pin or arm by said through slot (27).

Description

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Hinge device with a translation of cladding panel Description

TECHNICAL FIELD

The present invention relates to hinges for doors, hatches, doors or doors of appliances and furniture and refers to a hinge device with a translation of door siding panel, especially suitable for appliances such as dishwashers, appliances in general, and furniture.

BACKGROUND OF THE INVENTION

There are known hinges for rotating device doors, which are equipped with a fixed part intended to be fixed to the device structure and pivoted to a movable portion intended to be fixed to the device door to allow rotation between closing and opening conditions. . These known hinges can be equipped with gaskets, for example a deformable quadrilateral, designed to raise or move the door away from the structure during its rotation from the closed condition to the final opening condition to avoid interference from the door or panel lining. applied with the underlying elements, for example basic sockets.

Hinges are also known with an attached sliding joint for the cover panel operated by levers to move the panel to avoid interference with the sockets or other during the opening of the door.

A disadvantage of such known hinges is that the panel excursion is not always sufficient.

A further disadvantage of such known hinges is that they are quite complex, expensive and bulky due to the joints and grains provided to give a translational movement to the cladding panel during the rotation of the door.

Another disadvantage is that the bolts and linear grains of said known hinges are highly stressed and subject to early wear.

An additional disadvantage is that the law of rectiliar movement of panel attacks depending on the angle of rotation of the door is not linear or regular, and in certain cases, it could cause stiffeners or irregularities in movement of the door.

WO 83/01647 A1, US 465 112 A and US 1 998 319 A describe the features of the preamble of claim 1.

DESCRIPTION OF THE INVENTION

An object of the present invention is to propose a hinge device with a translation of door siding panel that ensures an excursion of this panel, suitable for each type of assembly.

An additional object is to propose a device that allows the panel path to be changed through simple modifications of some components.

Another object is to propose a device that allows changing the excursion of the panel, raising or lowering the latter during the opening, by simple changes.

An additional object is to propose a device with minimum transverse dimensions.

Another object is to propose a device that is simple, cheap to manufacture, wear resistant and

to stress

An additional object is to propose a device adjustment to provide the panel with a regular and proportional movement to the opening angle.

BRIEF DESCRIPTION OF THE DRAWINGS

The features of the invention are underlined in the following with particular reference to the accompanying drawings in which:

- Figure 1 shows a partial side view of the hinge device with a translation object of the door panel covering of the present invention, in a closed state, associated with an appliance and the panel covering, shown in dashed lines and moving in the direction

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indicated;

- Figure 2 shows the device of Figure 1 in an intermediate condition;

- Figure 3 shows the device of Figure 1 in the open condition;

- Figures 4 to 6 show isometric views of the device of Figure 1.

BETTER WAY TO CARRY OUT THE INVENTION

With reference to Figures 1-6, the number 1 indicates the hinge device for the appliance and furniture door, with translation of the cover of the panel door 3, object of the present invention; when said panel translation is relative to door.

The device 1 is provided with first 4 and second 5 connecting members designated to be fixed, respectively, to a structure or frame of the appliance or furniture and to the door for the rotation thereof of end closure C and opening conditions A.

The apparatus can be, for example, a dishwasher where the door is articulated in the lower opening by a pair of devices 1 with matching and horizontal rotation axes.

The door cladding panel 3 can have insulation and / or aesthetic functions and the device 1 moves it away from the axis of rotation during the opening of the door to prevent the edge of the lower panel from interfering with and impacting the underlying elements, like the socket or base.

Said first 4 and second 5 connecting members are mutually pivoted by a pin of

pivot 6.

The pivot pin 6 is placed near the lower end of the first connection member 4.

Said first 4 and second 5 connection members are preferably made of cut metal and sheet

folded

Said device 1 comprises a gearwheel means 20 made, for example, by drilling or cutting a sheet or by casting or removing solids, in a single body with the second connecting member 5. The gearwheel means 20 is centered on the axis of rotation of the pivot pin 6. The gearwheel means 20 is constituted, for example, in a sector of approximately 90 ° or more than a cogwheel with straight teeth.

As an alternative to the embodiment in a single body, the invention provides that the sprocket 20 is fixed to the second connecting member 5 by gasket, welding, gluing, screws, rivets or the like.

The device 1 also comprises a frame means 22 that slide slidably along a seat means 25 of the first connection member 4.

The frame means 2 is made by piercing or cutting a sheet, by casting or removing solids, and is forced to slide along the seating means 25 of the first connection member 4 in a direction of sliding D perpendicular to the rotation of the pivot axis 6 and parallel to the geometric plane of the panel 3 to which it can be fixed by means of a respective joint 23, for example in the form of "L" and made of bent and cut sheet.

The gearwheel means 20 is kinematically interconnected to rack means 22 by a gear cascade comprising a first intermediate gear 29 and a second intermediate gear wheel 35 which can freely rotate around the respective pins 30, 36 attached to the first member of Connection

4 in parallel with the pivot pin 6. The teeth of the intermediate gear wheels 29, 35 of this gear wheel are complementary to the teeth of the frame means 22 and the gear wheel means (20).

The intermediate sprockets 29, 35 are respectively coupled with the frame means 22 and sprocket means 20.

The gearwheel means 20 have a circular segment groove 38 centered on the pivot pin axis 6 and slidably coupled by a pin 39 fixedly attached to the first connecting member 4.

The rotation of the door and the first connection member 4, with respect to the second connection member

5 between the conditions of closing end C and opening A and vice versa, cause the rotation of the gearwheel means 20 around the pivot pin 6, the transmission of movement through the cascade of intermediate gearwheels 29, 35 to the middle of frame 22 and to the connected panel 3 with the subsequent translation of the latter 22, 3.

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The cogwheel teeth 20, the intermediate sprockets 29, 35 and the frame means 22 are compatible between st

The ratio between the number of teeth of the cogwheel determines the translation / angle ratio of the turning door. The replacement of the intermediate sprockets 29, 35 of the cascade is then possible to determine the amplitude entity of the panel 3 as a function of the opening angle of the door.

At least one of the intermediate sprockets 29,35 may be equipped with two different tooth crowns dedicated to the teeth of the respective members of the kinematic chain located downstream and upstream of this intermediate wheel in order to change the transmission ratio and the operation law of the panel depending on the opening angle without changing the rotation axis position.

Alternatively, the invention provides that the gearwheel means 20 is kinematically interconnected to the frame means 22 to engage directly or through the single gearwheel 29 coupled with both 20, 22.

The number or absence of intermediate sprockets causes the direction of door movement during opening, up or down.

The seating means 25 is concave in shape with elongated longitudinal development parallel to the sliding direction D. For example, the seating means 25 can be obtained by two 90 ° curves of metal sheet of the first connecting member 4 to give a elongated concave shape with a longitudinal development parallel to the sliding direction D and with a cross section "U", or the like.

At least one of the two side walls of the seating means 25, preferably both, has a grinding means 27 parallel to the sliding direction D and slidably coupled by a sliding means 28 fixed to the frame means 22.

Preferably, the sliding means 28 are partially housed in a complementary hollow seat, made in the frame means 22 and in which it is locked.

The grinding means 27 consists of an elongated groove formed in the respective side wall of the seating means 25 and the sliding means 28, for example of metal or synthetic material, has an elongated shape and slides longitudinally in the groove without or with a small transverse clearance.

The connection 23 for the panel 3 is fixed to the frame means 22 through at least one screw, bolt or the arm through a through groove that has a parallel longitudinal development to the sliding direction D and formed in the first member of connection 4. Said through groove, for at least one screw pin or connection arm of connection 23 to the frame means 22, is the groove of the crane means 27.

The slide means 28 has a planar protruding face, through the grinding means 27, from the first connecting member and is designed to abut a corresponding face of attack 23 fixed to the slide means 28 and to the frame means 22 through at least one screw, pin or arm.

The operation of the device provides, from the closing condition C, that the progressive rotation of the second connection member 4 of the device 1 towards the door opening condition, implies the simultaneous pivoting of the gearwheel 20 with respect to the first member 4 with the consequent rotation of the cascade wheels and translation of the frame means away from the axis of rotation of the door. This implies a corresponding translation of the panel 3 parallel to the door 3. In order to maintain this parallelism between the door and the panel, the latter two can also be interconnected through sliding grains parallel to the sliding direction D.

In the operative assembly condition, the axis of rotation of the pivot 6 is horizontal and below the opening to which the door is associated, in this case the device 1 illustrated in the figures provides for the elevation of the door during opening; It is also provided that this axis of the pivot pin can be horizontally superior or lateral to the vertical mouth of the apparatus providing in these cases the unfolding or lateral translation of the panel during the opening of the closing door of the mouth. By varying the number of intermediate sprockets or removing them, and adopting the direct gear of cogwheel means with frame means, it is possible to reverse the direction of panel translation obtaining, for example, your coffe during the opening of the door whose device is with horizontal axis and below the opening. The possibility of installing the device associated with horizontal mouth closing doors, such as tank apparatus, is also provided.

An advantage of the present invention is to provide a hinge device with a door cladding panel guaranteeing a suitable panel movement for each type of assembly.

An additional advantage is to provide a device that allows changing the movement of the panel

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by simple modifications of some components.

Another advantage is to provide a device that allows to change the direction of movement of the panel, by raising or lowering during opening, through simple changes.

Another advantage is to provide a simple device, cheap to manufacture and resistant to wear and tear.

stress.

An additional advantage is to provide an adjustment device to give the panel a regular and proportional movement to the opening angle.

Another advantage is to provide a device that allows fixing the cladding panel in a simple and fast way.

Claims (7)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 65 Claims 1. Hinge device for a door of household appliances and furniture in general, with a translation of door lining panel (3); said device (1) is provided with a first (4) and a second (5) connecting members pivoted mutually by means of a pivot (6) and assigned to be respectively fixed to the door and to a structure or frame of the apparatus or furniture for the rotation of the door and the panel between the conditions of extreme closure (C) and opening (A), said device (l) comprising a gearwheel means (20) fixed to the second connecting member (5) and centered on the axis of rotation of the pivot pin (6) and comprises a frame means (22) that is forced to slide along the first connecting element (4) in a sliding direction (D) perpendicular to the axis of rotation of the pivot pin) and parallel to the geometric plane of the panel (3) to which said frame means (22) can be fixed by a respective fixation (23) of the device in which the gearwheel means (20) is interconnected with the frame means 22); the rotation of the door and the first connection element (4) with respect to the second connection element (5) between the closing (C) and opening conditions (A) causes the rotation of the gearwheel means and the consequent translation the frame medium (22) and the panel (3); said device (1) being characterized in that the first connection element (4) has a safety means (25) for slidably accommodating the frame means (22), said seating means (25) is "U" or in in the form of a similar cross-section with at least one side wall provided with guiding means (27) slidably coupled by sliding means (28) fixed to the frame means (22), said grating means (27) is a groove of elongated passage formed in the respective side wall of the sliding seating means (25) and the sliding means (28) are elongated in shape and slide longitudinally within said through slot (27) without, or with a small cross space, where the fixation (23) to the panel (3) is fixed to the frame means (22) or to the sliding means (28) by at least one screw, pin or arm by said through slot (27). Device according to claim 1, characterized in that the gearwheel means (20) are centered on the axis of rotation of the pivot pin (6) and is fixed to the second connecting member (5) by means of a single body or by means of interlacing, welding, gluing, screwing, riveting or the like. Device according to any one of the preceding claims, characterized in that the gearwheel means (20) directly move the frame means (22) with said gearwheel means (20) and frame (22) being mutually coupled. Device according to claim 1 or 2, characterized in that the gearwheel means (20) is interconnected with the frame device (22) by means of a first intermediate gear (29) that can freely rotate around a respective pin (30) fixed to the first connection element (4) and is coupled with both the gearwheel means (20) and the frame means (22). Device according to claim 1 or 2, characterized in that the gearwheel means (20) displaces the frame means (22) through a gear arrangement comprising at least a first intermediate gearwheel (29) and a second intermediate gearwheel (35) freely pivotable around the respective pins (30, 36) fixed to the first connecting element (4) where the ends of these gears are engaged respectively with the gearwheel means (20) and frame (22) . Device according to claim 1, characterized in that the seating means (25) is concave and elongated and (25) has a longitudinal development parallel to the direction of sliding (D). Device according to claim 1, characterized in that the sliding means (28) has a flat face that protrudes from the first connection element through the groove of the grinding means (27) and is intended to be supported with a connection face (23) fixed to the sliding means (28) and to the frame means (22) by means of said at least one screw, pin or arm.