Automatically activated anti-disengagement system for a hidden hanging bracket for wall cupboards

Abstract

An anti-disengagement system that can be automatically activated for a hidden hanging bracket of a wall cupboard is employed to prevent the disengagement of a wall cupboard hooked to a support, fixed to a wall, with a movable hook having a curved hooking tooth forming part of a hanging bracket coupled to the wall cupboard at the rear. Elastically yielding engagement elements are automatically snap-activated upon insertion of the curved hooking tooth into a housing of the support.

Claims

1. An anti-disengagement system configured to be automatically activated, comprising: a support, and a hanging bracket for wall cupboards, wherein a wall cupboard is hooked to the support fixed to a wall with a movable hook having a curved hooking tooth forming part of the hanging bracket coupled to said wall cupboard at a rear thereof in hidden position, wherein said support and said curved hooking tooth of said movable hook cause an engagement element to be automatically snap-activated upon insertion of said curved hooking tooth into a housing of said support, wherein said engagement element is elastically yielding, wherein said engagement element comprises an elastic plate fixedly coupled, in at least one part thereof, with said hook, and wherein said elastic plate comprises a fixing portion fixed to a body of the hook and a free end that passes through a window formed in the body of the hook to face an inside of the curved hooking tooth of said hook.

2. The anti-disengagement system according to claim 1, wherein said free end of said elastic plate is shaped as a flattened S which exerts an opposing action upon pressure on one extremity thereof.

3. The anti-disengagement system according to claim 1, wherein said free end extends as far as an inside of the curved hooking tooth of the hook to exert an anti-disengagement hooking action in collaboration with a folded flap extending outwardly from an end section of said support, after said curved hooking tooth of the hook has been housed in a channel of said support.

4. The anti-disengagement system according to claim 1, wherein said support comprises a bar or plate fixed to said wall, wherein said bar or plate has a section which defines, with said wall, a channel where said curved hooking tooth of said hook is housed.

5. The anti-disengagement system according to claim 1, wherein said support comprises a bar or plate, wherein said bar or plate has a section essentially shaped as an overturned S with a central portion disposed as a shelf, below which a plate forming said engagement element is positioned.

6. The anti-disengagement system according to claim 5, wherein said engagement element comprises said elastic plate attached with said at least one part thereof to said hook, and wherein said elastic plate comprises a threaded pass-through seat for a screw.

7. An anti-disengagement system configured to be automatically activated, comprising: a support, and a hanging bracket for wall cupboards, wherein a wall cupboard is hooked to the support fixed to a wall with a movable hook having a curved hooking tooth forming part of the hanging bracket coupled to said wall cupboard at a rear thereof in hidden position, wherein said support and said curved hooking tooth of said movable hook cause an engagement element to be automatically snap-activated upon insertion of said curved hooking tooth into a housing of said support, wherein said engagement element is elastically yielding, and wherein said engagement element comprises an elastic plate attached with at least one portion fixed to to said hook, and wherein said elastic plate comprises a threaded pass-through seat for a screw.

8. An anti-disengagement system configured to be automatically activated, comprising: a support, and a hanging bracket for wall cupboards, wherein a wall cupboard is hooked to the support fixed to a wall with a movable hook having a curved hooking tooth forming part of the hanging bracket coupled to said wall cupboard at a rear thereof in hidden position, wherein said support and said curved hooking tooth of said movable hook cause an engagement element to be automatically snap-activated upon insertion of said curved hooking tooth into a housing of said support, wherein said engagement element is elastically yielding, and wherein said engagement element comprises a flap affixed to said hook with a screw, wherein one free end of the screw is clenched on the hook, forming an axial constraining member that is free to rotate, a spring abutted on an end of the flap being inserted on a stem of said screw.

9. The anti-disengagement system according to claim 7, wherein said flap comprises a fixing portion fixed to a body of the hook and a folded free end, which is inserted in a window formed in the body of the hook to face an inside of said curved hooking tooth of said hook.

10. The anti-disengagement system according to claim 8, wherein a nut is inserted between said fixing portion and a surface facing the hook, said nut being provided with an anti-rotation plate which firmly engages said nut in position.

11. The anti-disengagement system according to claim 8, wherein said fixing portion of said flap comprises a pass-through hole, further comprising a nut provided with an internal threading complementary to an outer threading of the screw.

12. The anti-disengagement system according to claim 7, wherein said flap extends as far as an inside of the curved hooking tooth of the hook to exert an anti-disengagement hooking action in collaboration with a folded edge of a section extending outwardly from an end section of said support, after said curved hooking tooth of the hook has been housed in a channel of said support.

Description

(1) The structural and functional characteristics of the invention and its advantages with respect to the known art can be clearly understood from the following description, referring to the enclosed drawings, which show illustrative embodiment examples of a system produced according to the innovative principle of the invention itself.

(2) In the drawings:

(3) FIG. 1 is a partially sectional raised side view illustrating a first embodiment of the system according to the invention with the wall cupboard carrying a hanging bracket ready for implementing an engagement phase to a supporting bar fixed to the wall;

(4) FIGS. 2 to 5 show the same view schematized for illustrating subsequent engagement phases until a stable and secure final position is reached;

(5) FIG. 5A is a view similar to the previous views from 2 to 5, but enlarged, which shows how the anti-disengagement system of the invention exerts its function;

(6) FIGS. 6 and 7 illustrate with a similar view, how the disengagement phase of the system of the present invention is effected, starting from the stable engagement position of FIG. 5;

(7) FIGS. 8 and 9 illustrate, with a view similar to the previous views, how the disengagement phase of the system of the present invention is effected, operating with a different mode and means, in the example with a screw device or starting from a system of the invention in a different embodiment,

(8) FIG. 10 is a partially sectional raised side view illustrating a second embodiment of the system according to the invention,

(9) FIGS. 11 and 12 are partially sectional raised side views illustrating a third embodiment of the system according to the invention.

(10) As illustrated first of all in FIG. 1 of the drawings, this shows an anti-disengagement system for a hidden hanging bracket for wall cupboards according to the present invention. In this example, a hanging bracket 11 is positioned behind a wall cupboard M through its base 12, constrained to a top C and a lining F. The hanging bracket 11 provides a movable hook 13 which extends from the base 12.

(11) Two adjustment mechanisms (known) of the position in depth (horizontal) and in height (vertical) of the hook 13, shown only in minimum detail, are assembled on the base 12.

(12) The hook 13 terminates at the front with a curved hooking tooth 14 destined for being hooked to a corresponding section 15 of a metal bar or plate 16 fixed to a wall P by means of dowels 17.

(13) The hanging bracket 11 is in itself a hidden hanging-bracket device of the known type, as described for example in patents EP 1549177 and EP 2219495, to which reference should be made for further clarifications, and which should be considered as being an integral part of the present description, as non-limiting examples, of hanging brackets of the known type.

(14) The section 15 of the bar 16 defines, with the wall P, a channel 18 in which the curved tooth 14 is housed. The bar 16 preferably has, for example, a C-shaped section, from the upper wing AS of which the above-mentioned section 15 extends vertically. A horizontal flap (edge) 15A square-folded directly from the section 15 of the bar 16, is also provided.

(15) The bar 16, however, can have sections different from the C-shaped section illustrated, for example a section in which the lower wing of the C is missing, or also other sections.

(16) An anti-disengagement group which, in the embodiment shown in the figures, is composed of an elastic lamina 19 fixed to the body (arm) of the hook 13 for example by means of a rivet 20, in at least a part of the same, cooperates with the curved tooth 14 of the hook 13, and with the bar 16.

(17) The elastic lamina 19 provides, in fact, a fixing portion 21 on which the rivet 20 is positioned, and a free end 22 which passes through a window 23 formed in the hook 13 to face the inside of the curved tooth 14. Said free end 22 has the form of a flattened S to enable it to exert its opposing action. As already mentioned, said preferably shaped free end 22 extends inside the curved tooth 14 of the hook 13 to better exert its anti-disengagement hooking action in collaboration with the horizontal flap (edge) 15A square-folded directly from the section 15 of the bar 16, once the hook has been housed in the channel 18 of the support to the wall P in the form of a bar 16.

(18) The invention therefore provides that the support or bar 16 and the curved hooking tooth 14 of the movable hook 13 provide elastically yielding engagement elements that can be automatically snap-activated with the insertion of the curved hooking tooth 14 of the hook 13 in the housing or channel 18 of the support or bar 16. Said elastically yielding engagement elements can be seen to comprise the elastic lamina 19 made integral with the hook 13 in at least a part thereof.

(19) It can thus be seen how a hanging bracket is produced, provided with an anti-disengagement group opposed to the hooking point of the same hanging bracket.

(20) FIGS. 2 to 5 show the same view as FIG. 1 further schematized to illustrate the subsequent engagement phases of the wall cupboard M with respect to the wall P until a stable final position is reached.

(21) In particular, it can be seen how, in FIG. 2, the wall cupboard M carrying the hanging bracket 11 is moved towards the wall P so as to bring the hook 13 above the bar 16.

(22) The wall cupboard M is lowered from this position according to the arrow K to effect the stable positioning of the hook 13 with respect to the bar 16.

(23) In its lower movement to effect the engagement (FIG. 3), it can be seen how the free end 22 of the elastic lamina 19 bumps against and then slides with respect to the horizontal square-folded flap (edge) 15A of the section 15 of the bar 16.

(24) This causes a flexion of the elastic lamina 19 which allows the lowering of the hook to be continued. This flexion is such that the curved tooth 14 of the hook 13 becomes positioned inside the channel 18 defined by the wall P with the section 15 of the bar 16.

(25) In this position, it can also be seen that the elastic lamina 19, no longer bent by the horizontal flap 15A of the section 15 of the bar 16, returns to its original position (FIG. 4). This position thus automatically determines the anti-disengagement function of the lamina 19.

(26) It can also be noted that this anti-disengagement function is active regardless of the adjustment position in depth of the hanging bracket, as can be seen in FIG. 5 in which the hanging bracket is perfectly aligned with the surface of the wall P.

(27) FIG. 5A shows, with a view similar to the previous views of FIGS. 2 to 5, but enlarged, how the anti-disengagement system of the present invention exerts its function. If a force S, in fact, causes a lifting of the wall cupboard M, the collaboration and engagement of the lamina 19 with the horizontal flap 15A of the section 15 of the bar 16 blocks the furniture in position with an anti-disengagement function. It should be noted how the elastic lamina 19 operates in an opposite position with respect to the hooking point or rotation point of the hook 13 during the assembly phase of the furniture.

(28) The elastic lamina 19, in fact, operates or acts or becomes engaged in correspondence with the rotation point of the hook 13 as indicated above.

(29) The functioning of the anti-disengagement system according to the invention is therefore clearly illustrated in the operating sequence of the previous FIGS. 1-5.

(30) The subsequent FIGS. 6 and 7 very clearly illustrate how the disengagement phase of the system of the present invention can be effected when the wall cupboard must be removed from the wall P.

(31) Starting from the stable hooking position of FIG. 5 or even better from that shown in FIG. 4 when the adjustment in depth has been brought back to its initial position obtained in the hooking phase, the following procedure is adopted.

(32) FIG. 6 shows how a magnet 40which is positioned inside the wall cupboard M, at the lining Fcan be used.

(33) This magnet 40 is positioned in correspondence with the elastic lamina 19 of the hanging bracket 11 (FIG. 6).

(34) The action of the magnet 40 causes the backward flexion of the elastic lamina 19 (FIG. 7) and the elastic lamina 19 is retracted at its free end 22, which becomes positioned inside the window 23 formed in the body of the hook 13.

(35) In this way, said free end 22 of the elastic lamina 19 becomes disengaged from any possible incidence with the horizontal square-folded flap (edge) 15A of the section 15 of the bar 16.

(36) This allows the free lifting of the wall cupboard M, i.e. of the hook 13 so that the curved tooth 14 of the hook 13 is extracted from the channel 18 between the bar 16 and the wall P. The wall cupboard M is then extracted according to the arrow H, by lifting.

(37) FIGS. 8 and 9 show an alternative disengagement of the system of the present invention, achieved by means of mechanical screw systems.

(38) In this case, the elastic lamina 19 has a threaded pass-through seat 41 for a screw 42.

(39) Said screw 42 can be positioned therein right from the hooking assembly or it can be screwed into its seat 41 when the cupboard must be disassembled, by unhooking it from the wall P.

(40) It is evident that once the screw 42 has been positioned in its seat 41, if further screwed by means of a screwdriver 43, it creates a thrust on the outer surface of the body of the hook 13.

(41) This screwing action causes the flexion of the elastic lamina 19 and the detachment of the same from the body of the hook 13 so that the free end 22 of the elastic lamina 19 is moved towards the window 23 formed in the body of the hook 13, clearly shown in FIG. 9.

(42) At this point, it is sufficient to lift the cupboard M in the direction of the arrow H thus causing the unhooking of the hanging bracket 11 from the bar 16.

(43) This can occur thanks to the fact that the action of the screw 42 is such that the free end 22 of the elastic lamina 19 is disengaged from any possible incidence with the horizontal square-folded flap (edge) 15A of the section 15 of the bar 16.

(44) Consequently, also in this case, a rapid and simple unhooking action of the cupboard M, i.e. of the hanging bracket 11 from the bar 16 on the wall P, has been effected.

(45) FIG. 10 shows a partially sectional raised side view of a second further embodiment of the system according to the invention.

(46) In this further example, the same elements have the same reference numbers.

(47) The elastic lamina 19 of the previous example is substituted by a flap 191 held integral with the hook 13 by means of a screw 142 of which a free end 144 is clenched on the hook 13, forming an axial constraining means which also allows rotation.

(48) The flap 191 provides a fixing portion 192 to a body of the hook 13 and a folded free end 193 which is inserted in a window 23 formed in the body of the hook 13 to face the inside of a curved tooth 14 of the hook 13.

(49) A spring 145 is inserted on the stem of the screw 142, which is abutted on the shaped fixing portion 192 of the flap 191. A nut 146 is inserted between the fixing portion 192 and a surface facing the hook 13, said nut having an anti-rotation plane which firmly engages it in this position. Furthermore, the fixing portion 192 of the flap 191 comprises a pass-through hole 147, whereas a nut 146 is provided with an internal threading 148 complementary to the outer threading of the screw 142.

(50) The flap 191 and the spring 145 combined with each other thus positioned also form elastically yielding engagement elements forming part of the anti-disengagement system according to the present invention.

(51) In this case, the disengagement is obtained by simply screwing the screw 142 in the nut 148 so as to cause the lifting of the flap 191 thanks to the presence of the spring 145 which yields and becomes packed.

(52) The free end of the flap 191 is therefore able to become detached from any possible engagement with the horizontal square-folded flap 15A of the section 15 of the bar 16, allowing the withdrawal of the flap in the window 23, the unhooking of the hook 13 and consequently of the wall cupboard M from the bar 16.

(53) FIGS. 11 and 12 are two partially sectional raised side views, illustrating a third further embodiment of the system according to the invention.

(54) The reference numbers present in the above description are also used, when possible, in this example.

(55) It should also be noted that in this example, there is a similar situation to that proposed in FIGS. 1-5 with the addition that the threaded pass-through seat for a screw 42 which collaborates in the disengagement phase, is provided directly in the elastic lamina 19.

(56) The system of the invention provides the hook 13 of the hanging bracket 11, positioned at the rear of the wall cupboard M, wherein the hook 13 comprises the curved hooking tooth 14 destined for being hooked to a corresponding section 15 of a metal bar or plate 16 fixed to a wall P by means of dowels 17.

(57) Also in this example of FIGS. 11 and 12, the section 15 of the bar 16 defines with the wall P, a channel 18 where the curved tooth 14 is housed, but the bar 16 has a substantially overturned S-shaped section with a central portion AS.

(58) In this case, the elastic lamina 19, when operatively assembled, is positioned beneath the above-mentioned central portion AS which forms a small shelf.

(59) The horizontal flap 15A square-folded directly from the section 15 of the bar 16, which acts as an undercut of the bar 16, is not in fact present as in the example of FIGS. 1-5.

(60) The anti-disengagement system of this example, however, also works equally well as those of the previous examples.

(61) The objectives mentioned in the preamble of the description have therefore been achieved, in particular the extremely important objective of providing a practical and safe anti-disengagement system, with a secure blocking of the wall cupboard when hanging.

(62) Furthermore, in spite of the safe positioning and activation of the anti-disengagement system, it can be seen how it is possible to act in disengagement by operating on the system of the present invention.

(63) The anti-disengagement system for a hidden hanging bracket for wall cupboards according to the present invention therefore minimizes or even completely eliminates any type of intervention by the user in the hooking phase of the wall cupboard to the wall.

(64) Furthermore, an anti-disengagement system for a hidden hanging bracket for wall cupboards is provided, which can also be easily used in the case of a supporting wall which is not perfectly vertical or with a raised portion due to the presence of tiles.

(65) The protection scope of the present invention is defined by the enclosed claims.