CN103261553A - An opening device for a door of an article of furniture supported oscillatably by means of at least one hinge - Google Patents

Abstract

An opening device for a furniture door (1) comprises an expulsion member (17) for the door (1) which is elastically stressed on opening, releasable retaining means (19) for the expulsion member (17), a command device and a box-shaped base body (25) supporting translatingly said expulsion member (17). Said command device comprises an actuating member (20) for said retaining means (19) that is oscillatable about a fulcrum (21) positioned at the front end of the flanks (30) of said base body (25) in proximity of the door (1) and orientated perpendicularly to the translation direction of said expulsion member (17). Said actuating member (20) comprises amplifying means relative to the displacement of the retaining means (19) with respect to the oscillation of the door (1), and the amplifying means comprises first and a second arms (23, 24) arranged transversally of one another. The first arm (23) is positionable substantially parallel to the door (1) such as to be activated by the door (1), and the second arm (24) is conformed such as to directly or indirectly activate said retaining means (19).

Description

Opening device for doors pivotally supported by at least one hinge for furniture

describe

The present invention relates to a control device (command device) for an opening device of a door of furniture pivotally supported by a hinge, which control device is particularly suitable for pushing the hinge on the side on which the hinge is fixed and in particular when it is self-closing (which enables the automatic opening and subsequent closing of the door) or even on conventional hinges on furniture.

In the field of furniture without handles or other opening means, it is known to use opening means which, as the user pushes the closed door, produce a displacement of the door in the opening direction of a first path sufficient for the user to grasp the closed door. Lock the door and leave it fully open.

In particular, the opening means usually provided include: an expulsion member for the door, which is elastically pressurized; The push-out member is releasable with a few millimeters of rearward movement.

Once its action has been performed, the opening device must, for example, be activated by a push force in the opposite direction on the push-out member (which is exerted on the door by the user in the final path of the closing movement of the door) or by a specific force actuated by the movement of the door itself. Reload the device while being reloaded.

Therefore, advantageously the device is positioned on the piece of furniture on the opposite side to the side on which the hinge is fixed, requiring specific operations for its installation and correct functioning.

In the case where the opening device is provided at the hinge, or in any case applied to the furniture on the hinge side, the movement of the hinge element or of the door on the hinge side (as a result of the user's thrust on the closed door) of approx. A few tenths of a millimeter are therefore insufficient to generate the movement required to be able to release the retaining means of the ejection member.

A hinge with an opening device of this type is known, for example, from WO 2008/009345 Al.

DE 20 2007 005 782 U1 discloses an opening device comprising an ejection member with an associated holding device and provided with transmission means for transmitting to the holding device the movement of a control device to which a door is hinged. One side of the pivoting hinge is opposite or in any case remote from this side near the side of the piece of furniture. The technical object of the present invention is therefore to realize a control device for an opening device of a door of furniture pivotably supported by a hinge, which eliminates the above-mentioned disadvantages of the prior art.

Within the scope of the technical task, an object of the present invention is to provide a control device for an opening device of a door of furniture pivotally supported by a hinge, which is at a displacement of the door with a displacement of the order of a few tenths of a millimeter. In this case it is also possible to release the push-out member, in particular with reference to the application of the opening means at the hinge or in any case on the side of the piece of furniture on which the hinge is applied.

A further object of the present invention is to provide a control device for an opener of a door swingably supported by a hinge of furniture, which is capable of operating for a longer period of time without deterioration in performance.

The technical task of the present invention is achieved by realizing an opening device for a door of furniture swingably supported by at least one hinge, said opening device comprising: pressure; a releasable retaining device for the ejection member; and a control device, wherein the opening device comprises a box-shaped base which supports the ejection member in translation, and the control device comprises a an actuating member of the retaining device, which is swingable about a fulcrum located at the front end of the side of the base near the door and oriented perpendicular to the direction of translation of the push-out member, said actuating member having Amplifying means for the displacement of the holding means relative to the swing of the door, said amplifying means comprising a first arm and a second arm arranged transversely to each other, the first arm being positionable substantially parallel to the door , so as to be actuated by the door or by the hinge element, the second arm is conformed so as to directly or indirectly actuate said retaining means.

The amplification of the swing of the door obtained by the opening device of the invention advantageously determines the displacement of the holding device and possibly the ejection member through a path at least sufficient to release the ejection member, when the opening device is applied at the hinge or in any case located at the furniture The same is true when applied on the side where the hinge is applied.

Other features of the invention are further defined in the subsequent claims.

Other characteristics and advantages of the present invention will appear more fully from the description of a preferred but not exclusive embodiment of a control device for an opening device of a door swingably supported by at least one hinge for furniture, in which:

Figure 1 shows an exploded axonometric view of an opening device according to a first preferred embodiment in the form of an arm applicable to a hinge;

Figure 1a is an axonometric view of the base body of the control device of the opening device of Figure 1;

Figure 2 is an axonometric view of the opening device of Figure 1 assembled and mounted on a hinge;

Figure 3 is a longitudinal section of the opening device and hinge of Figure 2 taken along its central plane;

Figure 4 is a side view of the opening device of Figure 2 in the configuration it assumes when the door is closed, and a sectioned, larger-scale view of its details;

Fig. 5 is a partial section of the opening device shown in Fig. 4;

FIG. 6 is a view of the opening device of FIG. 2 in the configuration assumed during application of thrust by the user when the ejection member is released, and a larger-scale cross-sectional view of a detail thereof;

Fig. 7 is a partial section of the opening device shown in Fig. 6;

Figure 8 is a view of the opening device of Figure 2 in the configuration assumed when the extraction of the ejection member is completed;

Fig. 9 is a partial section of the opening device shown in Fig. 8;

Figure 10 is a view of the opening device of Figure 2 in a configuration in which the ejector member has been reset, and a larger sectional view of a detail thereof;

Fig. 11 is a partial section of the opening device shown in Fig. 10;

Figures 12, 13, 14 and 15 show the sequence of configurations assumed by the opening device of the second preferred embodiment of the invention, from the release of the push-out member to the reset of the push-out member;

Figure 16 is a form of an opening device according to the invention applied on a base body for fixing the hinge to a fixed part of the piece of furniture, for example to an abutment of the piece of furniture;

Figure 17 is a form of an opening device according to the invention applied to a fixed part of the piece of furniture, for example to a stand of the piece of furniture; and

Figures 18, 19 and 20 show the sequence of configurations assumed by an opening device according to another preferred embodiment of the invention, from the engaged position of the ejection member to the released position.

In the following the same numerical references will be used to indicate equivalent parts of the various preferred embodiments of the invention.

Referring to the accompanying drawings, there is shown a control device for the opening device of a door 1 swingably supported by one or more hinges 2 for furniture.

The hinge 2 has: a hinge housing 3, applied to the door 1; a hinge arm 4, applied to a fixed base 5, which is connected to a fixed part of the furniture, in particular to a support 6 of the furniture; and a rocker-like 7 and 8, which operatively connect the hinge housing 3 to the hinge arm 4.

In known manner, the hinge 2 comprises: pins 10, 11 for articulating the rockers 7 and 8 to the hinge arm 4; pin 12 ends 13 for articulating the rockers 7 and 8 to the hinge housing 3 ; and the elastic element 15 positioned between the inner side of the back of the hinge arm 4 and the actuating cam 16 present at the end of the rocker 8 and adapted to participate in the closing of the door 1 . The hinge 2 can also comprise a deceleration of the closing of the door 1 , of the type with a clutch submerged in a viscous fluid applied to the outside of the bottom of the hinge housing 3 .

Obviously, the control device for the opening device can be combined with hinges of known types, even completely different from those described above by way of example only, in particular hinges with a different number of hinge pins.

The opening means comprise: a push-out member 17 for the door 1 , pressurized by a resilient element 18 when opening; and releasable retaining means 19 of the push-out member 17 .

Advantageously the control device comprises an actuating member 20 for the holding device 19 , which can be pivoted by the action of the elastic element 22 and inversely about the pivot point 21 , and which has the holding device 19 relative to the swing of the door 1 The displacement amplification device.

The control device 1 is configured such that the swing fulcrum 21 of the actuating member 20 can be positioned near the door 1 .

The actuating member 20 has amplifying means comprising a first arm 23 and a second arm 24 arranged transversely to each other, wherein the first arm 23 can be positioned substantially parallel to the door 1 in order to pass through the door 1 Actuated or via the hinge 2 element, the second arm 24 is complied with in order to directly or indirectly actuate the retaining means 19 .

The control device comprises a box-shaped base body 25 translatably supporting an ejection member 17 which in turn protrudes through its rear end 26 from a window 27 present at the rear end of the base body 25 and which through its front end 28 protrudes from the existing A window 29 protrudes at the front end of the base body 25 .

Above the window 29, the front end of the base body 25 has a further access window 31 leading to an inner base 32 for accommodating the elastic element 22 and a button 33 which, through the action of the elastic element 22 and oppositely along The direction parallel to the displacement of the ejection member 17 moves in translation through the window 31 .

The actuation member 20 pivots at the front end of the side face 30 of the base body 25 via a pivot point 21 , which is oriented perpendicular to the direction of translation of the ejection member 17 .

In particular the actuation member 20 is extended by a first arm 23 located in front of the front end of the base body 25 and by a second arm 24 along a side face 30 of the base body 25 .

The first arm 23 is constructed in such a way that it interacts with the button 33 via its inner side and interacts with the edge 53 of the hinge housing 3 protruding from the thickness of the door 1 via its outer side (for the accompanying drawings 1-14 embodiment) or interact with another part of the door 1 (for the implementation of FIG. 15 ). The retaining means 19 comprise at least one tooth 34 engageable with a stop 35 present at the rear end of the ejection member 17 .

The stop 35 has an engaging seat 37 for the tooth 34 and preferably includes a flexible rear wall or resilient protrusion 36 .

The flexible wall or elastic protrusion 36 is able to facilitate the separation of the tooth 34 during the first opening step of the door 1 (i.e. when the user pushes the closed door 1 ), since it prevents the tooth 34 from fully pressing the push-out member 17. It can be translated forwardly so as to be able to push the door 1 back into the seat 37 before being pushed into the open position.

The stop 35 has adjustment means of the engagement position of the teeth 34 . The adjustment means of the engagement position of the tooth 34 comprise a screw 38 whose free end is designated to operate as a stop for the tooth 34 .

The screw 38 has an adjustable depth into the seat 37 so that a change in the position of the end of the screw 38 within the seat 37 causes a change in the engagement position of the tooth 34 .

The possibility to adjust the engagement position of the teeth 34 is particularly useful, since this makes it possible to set up the control device 1 while taking into account any structural and/or installation tolerances and adjustments of the hinge. In the preferred embodiment of the invention shown in Figures 1-11, the second arm 24 has a length much greater than the length of the first arm 23, and the retaining means 19 are arranged directly on the second arm. 24; in particular the actuation member 20 and the holding means 19 are realized as a single piece.

The ratio between the length of the second arm 24 and the length of the first arm 23 is preferably at least 5, more preferably between 7 and 8 included.

In the preferred embodiment of FIGS. 12-15 a lever transmission system is included between the actuation member 20 and the holding means 19 .

The lever transmission system comprises in particular a kinematic chain formed by a first lever 40 which pivots at 41 relative to the side 30 of the base 25 and operatively engages the actuating member 20 on one side and on the other. One side operatively engages a second lever 42 which is pivoted at 43 relative to the side 30 of the base 25 and which has the retaining means 19 . The holding device 19 is preferably realized in a single piece with the lever 42 . The swing fulcrums of the levers 40 and 42 are parallel to the swing fulcrum 21 of the actuating member 20 .

Compared to the previous solution, this solution achieves a more durable construction of the control device 1 overall and a greater amplification of the displacement of the holding device 19 with a slight constructional complexity. The control device 1 can have a lateral projection 45 applied to the plate 5 for fixing the hinge arm 4 on a fixed part of the furniture (example of FIG. 16 ), or it can have two lateral projections 45, so as to be applied at a distance from the hinge 2 and from the fixing plate 5, but always on the same side of the fixing part of the furniture on which the hinge 2 is applied (example of FIG. 17). In both cases, the resetting of the control device 1 is done by the user manually closing the door of the furniture.

In the case where the control device 1 is applied directly to the hinge 2 and in particular to the hinge arm 4 via a fastening screw 44 which fastens the base body 25 to the back of the hinge arm (Example of FIGS. 1-15 ) example), an integrated device is included in the hinge 2 for automatically resetting the push-out member 17.

The reset device comprises: a first lever 47 for pulling the push-out member 17; a second lever 48 actuatable from one side of the hinge 2 during the opening movement of the door 1, in particular from the side of the rocker-like part of the hinge 2 a lever-like elongated side actuation, preferably of the rocker arm 7 ; and a third lever 49 for transmission of movement between the first lever 47 and the second lever 48 . The second lever 48 has a common swing fulcrum 10 with the rocker arm 8, while the first lever 47 pivots at 50 relative to the side of the hinge arm 4, and the swing fulcrum of the first lever is parallel to the levers 48 and 49 the fulcrum.

The first lever 47 passes over a gap 51 in the back of the hinge arm 4 and has an end adapted to interact with a cam or abutment wall 52 provided in a forward position on the side of the ejection member 17 .

The control device 1 is applied on the support 6 of the piece of furniture in such a position that the edge 53 of the hinge housing 3 protruding from the thickness of the door 1 can interfere with the first arm 23 of the actuating member 20 .

Referring to the embodiment shown in FIGS. 1-13 , the functions of the control device 1 are briefly described as follows.

Initially closing the door 1 , the edge 53 of the hinge housing 3 rests on the first arm 23 of the actuating member 20 , which has an initial position corresponding to the engagement of the tooth 34 in the seat 37 of the stop 35 .

The user pushes the closed door 12, as a result, the edge 53 of the hinge housing 3 pushes the first arm 23 of the actuation member, which swings and compresses the elastic element 22;

Oscillation of the actuating member 20 is transmitted (directly in the case of the embodiment of Figures 1-11, or indirectly via the transmission system of the embodiment of Figures 12-15) to the tooth 34 so that the tooth 34 moves sufficiently And the base 37 is separated.

In the case where the edge 53 of the housing 3 also pushes the ejection member 17 causing it to retract, there is the effect of releasing the elastic element 18 so that the wall 36 rests only on the tooth 34 , thereby facilitating the separation of the tooth from the base 37 .

When the teeth 34 are separated from the base 37 , the push-out member 17 can click forward due to the action of the expansion of the elastic element 18 and cause a first step of opening the door 1 .

In this step 1a, the elastic return of the wall 36 of the seat 37 due to the disengaging action of the tooth 34 prevents the return of the tooth 34 into the seat 37 before the push-out member 17 translates to push the door 1 open.

Together with the first step of opening of the door 1 , the elastic element 22 is free to expand; by means of the button 33 the elastic element pulls the actuation member 20 back into its initial position.

During the opening step of the door 1, the lever 47 and the cam 52 do not interact. The reset of the control device 1 occurs during the next opening step of the door 1 performed by the user.

In this step of completing the opening of the door 1, the rocker 7, due to its swinging action, actuates a kinematic chain comprising a series connection of a lever 48, a lever 49, and a lever 47, which is now connected to the cam 52 interact, causing the retraction of the push-out member 17.

During the retraction of the push-out member 17 , the stop 35 blocks the inclined wall 54 , the tooth 34 initially sliding along the inclined wall 54 of the stop 35 is thus displaced.

The displacement of the teeth 34 directly or indirectly causes an oscillation of the actuating member 20 opposite to the compressed elastic element 22 .

As the retraction of the push-out member 17 continues, the tooth 34 goes over the inclined wall 54 and the elastic wall of the stop 35, thereby returning to the base 37 due to the expansion of the elastic element 22, when the return lever 47 completes its action , the tooth rests on the elastic wall 36 again.

In accompanying drawings 18 to 20, another embodiment of the control means for the opening device of the invention is shown; in this embodiment, the ejection member 17 is provided with a releasable retaining means of ratchet type of known type .

Usually these ratchet-type retaining devices, which require a displacement of about a few millimeters in order to function, comprise slides for a retaining element which is selectively movable between a blocking position and a releasing position of the push-out member 17 .

In this case, the oscillating actuation member 20 is operatively connected to the ejection member 17 by amplifying means such that a displacement of the ejection member 17 and associated ratchet-like retaining means is produced sufficient to cause the release of the ejection member 17 .

In particular, the amplifying means of the displacement comprise a lever transmission system 40, 42 arranged between the actuating member 20 and the ejection member 17, wherein the lever 42 is in the first position shown in the accompanying drawing 18 and in the first position shown in the accompanying drawings 19 and 20 Rotational movement between the second position, in the first position, the lever 42 rests on the wall provided on the rear end 26 of the ejection member 17, and the second position, the lever 42 is not engaged with the ejection member 17.

The swinging of the lever 42 (controlled by the actuating member 20 via the intermediate lever 40 ) causes the retraction of the push-out member 17 , thereby effecting the displacement of the retaining element of the ratchet mechanism from its blocking position to its releasing position.

As shown in Figure 20, after the exit of the push-out member 17, the lever 42 remains resting on the bottom of the rear end 26 of the push-out member 17 until the push-out member 17 itself may pass through an automatic reset device or by a force applied to the door by the user. Retraction by action causes the lever 42 to be allowed to return to the first position of FIG. 18 by an amount.

Advantageously the control device of the invention can be arranged at the hinge, or in any case it can be applied to the furniture on the same side of the door on which the hinge is provided as the holding device, due to the enlarged displacements it can withstand also Correct release of the ejection member can be performed. This undoubtedly leads to a simplified installation of the opening device, which does not require specific operations, especially when the opening device is applied to the hinge or to the fixing plate of the hinge, limiting additional overall dimensions or aesthetically objectionable additions.

The control device for the opening device of a door of furniture conceived here is susceptible to numerous modifications and variants, all of which fall within the scope of the inventive concept; moreover, all details can be obtained by means of technically equivalent elements replace.

In fact, the materials used and the dimensions can be any according to the needs or the state of the art.

Claims (17)

1. opening device that is used for the door (1) of furniture, described door can swingingly support by at least one hinge (2), and described opening device comprises: be used for the release member (17) of described (1), described release member is flexibly pressurizeed when unlatching; The releasable holding device (19) that is used for described release member (17); And control device, it is characterized in that, described opening device comprises box-like matrix (25), described box-like matrix translation ground supports described release member (17), and described control device comprises for the actuation member of described holding device (19) (20), described actuation member can center on fulcrum (21) swing, described fulcrum near described door (1), be positioned at described matrix (25) side (30) the front end place and perpendicular to the translation direction of described release member (17) orientation, described actuation member (20) has the amplifying device with respect to the displacement of the described holding device (19) of the swing of described door (1), described amplifying device comprises the first arm shape spare and the second arm shape spare (23 that mutual crosscut ground is arranged, 24), described the first arm shape spare (23) can be parallel to described door (1) substantially and locate, in order to activate by described door (1) or the element by described hinge (2), the described second arm shape spare (24) for defer in order to directly or indirectly activate described holding device (19).

According to claim 1 for furniture the door (1) opening device, it is characterized in that described actuation member (20) can be swung in contrast by the effect of flexible member (22).

According to one in the aforementioned claim described for furniture the door (1) opening device, it is characterized in that, described actuation member (20) by being positioned at described matrix (25) the place ahead described the first arm shape spare (23) and prolong by the described second arm shape spare (24) along the described side (30) of described matrix (25).

According to last claim described for furniture the door (1) opening device, it is characterized in that described holding device (19) comprises tooth (34), described tooth can engage with the stop part (35) of the rear end that is present in described release member (17).

5. according to the opening device of the described door (1) for furniture of last claim, it is characterized in that described stop part (35) has flexibly crooked rear wall.

According in claim 4 and 5 each described for furniture the door (1) opening device, it is characterized in that described stop part (35) has the adjusting device of the bonding station of described tooth (34).

According to last claim described for furniture the door (1) opening device, it is characterized in that, described adjusting device comprises screw (38), described screw has the regulated penetration depth that enters in the base (37), and described base provides at the described stop part (35) that described tooth (34) can be bonded on wherein.

According in the aforementioned claim each described for furniture the door (1) opening device, it is characterized in that the described second arm shape spare (24) has than the big length of described the first arm shape spare (23).

According to claim 8 for furniture the door (1) opening device, it is characterized in that the ratio between the length of the length of the described second arm shape spare (24) and described the first arm shape spare (23) is at least 5.

10. according to the opening device of the described door (1) for furniture of last claim, it is characterized in that described holding device (19) is arranged in the end place of the described second arm shape spare (24).

11. according in the claim 1 to 8 each described for furniture the door (1) opening device, it is characterized in that described opening device comprises the lever transmission system (40,42) that is positioned between described actuation member (20) and the described holding device (19).

12. according to claim 1 for furniture the door (1) opening device, wherein, described release member (17) has the releasable holding device of ratchet-type, it is characterized in that, the described actuation member (20) that can swing operatively is connected to described release member (17) via described amplifying device, thereby produce the displacement of described release member (17) and relevant ratchet-type holding device, to cause the release of described release member (17).

13. according to claim 1 for furniture the door (1) opening device, it is characterized in that the described amplifying device of displacement comprises the lever transmission system (40,42) that is positioned between described actuation member (20) and the described release member (17).

14. according in the aforementioned claim each described for furniture the door (1) opening device, it is characterized in that described opening device comprises the automatic reset device of described release member (17).

15. the opening device according to the described door (1) for furniture of last claim is characterized in that described resetting means comprises: first lever (47) is designated as and the cam (52) that is present on the described release member (17) interacts; Second lever (48) can the part by described hinge activate in the unlatching moving process of described door (1); And the 3rd lever (49), transmit the movement between described first lever and described second lever (47,48).

16. hinge (2) that is used for furniture, it is characterized in that, described hinge has according to each described opening device in the aforementioned claim, and described opening device is applied to hinge arms shape spare (4) or is applied to the fixed pedestal (5) of described hinge at the fixed part of described furniture.

17. a furniture is characterized in that, described furniture has: at least one is according to each described opening device in the claim 1 to 11, and described opening device is applied on the side that hinge is fixedly arranged of described furniture; And/or at least one hinge according to claim 13.

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