FR2500879A1 - CLOSURE WITH CLICK FOR CABINET DOORS OR SIMILAR ELEMENTS - Google Patents

Abstract

THE INVENTION RELATES TO A SNAP CLOSURE FOR CABINET DOORS OR SIMILAR ELEMENTS. IN THE SAID CLOSURE, A SHELL 13 AND A LOCK HOUSING 32 HAVE FIXING PROJECTS 20, 33 AND CENTERING PROJECTS. A GUIDING ELEMENT 15 OF THE SAID SHELL 13 HOUSES A PRESSURE ROD 27 CORRESPONDING TO THE THICKNESS OF THE DOOR 10 OF THE CABINET. THIS ROD 27 IS APPLIED BY A DRIVE SHAFT 28 AGAINST AN ACTUATION PROJECT 26 OF AN ACTUATION HANDLE 21 AND IT IS BEARING AGAINST A LATCH (TILTING BODY) 38 SWIVEL RISE IN THE BOX 32. A RETURN SPRING 43 KEEP THE ORGAN 38 IN ITS CLOSED POSITION AGAINST THE ROD 27. APPLICATION TO CLOSING DOORS OF CABINETS OR SIMILAR FURNITURE.

Description

The present invention relates to a closure

  snap-on for cabinet doors or the like,

  carrying a shell that can be inserted into the front face of a recess in the cabinet door or the like, and in which a handle can rotate

  tilting action which, when raised, de-

  place a pressure rod in the direction of the posterior side

  said recess, thereby bringing the bolt (subject to ac-

  spring), a click lock located on the rear side of the cabinet door or the like,

  its closing position in which it is in contact with

  behind with a closing angle secured to the body of the furniture, to its open position in which it releases

said angle iron.

  A snap closure of this type has been described in patent application DE-2,836,975. In this known snap lock, the recess in the cabinet door or the like is rectangular in shape and has a lock. an individual structural member is attached to the rear face of the cabinet door or

  analogous element, either directly or through the medium of

  re a cover plate. The pressure rod is part of the snap lock, it is held irremovably in the latter and protrudes to

  inside the recess of the cabinet door (or

  similarly) to end below an arm

  tilting handle.

  This snap closure of known type is not

  only for a certain thickness of the door of

  In addition, the rectangular recess

  practiced in said door greatly complicates

  because it must be milled. In addition, it is necessary to

  see individual fixations for both the

  shell only for the snap lock, and it is not

  ti said shell and said lock take automatically

  their respective appropriate positions after

  have been attached to the cabinet door or the like.

  The present invention therefore aims to provide a snap closure of the aforementioned type, which can be attached to cabinet doors (or similar elements) of different thicknesses, with low complexity

  embodiment and a small number of fastening means.

  According to the essential characteristics of the

  snap closure according to the invention, the shell and the housing

  third of the lock housing the latch are provided on their facing faces, fastening projections in the form of bushings, and centering projections aligned with each other outside said fixing projections; a guiding element of the shell houses a

  pressure rod movable axially and corresponding to the thick-

  door of the cabinet door or the like; this rod

  pressure is applied by a pin or projection of

  against a protrusion of the bottom handle

  and bears against a latch which, in the form of a tilting member, is pivotally mounted in the lock housing; this rocking organ is

  held by a return spring in its closed position

  meture, that is to say against said pressure rod; in

  its closing position, said tilting member makes

  ] .ie beyond the lock housing by a cam

  rearward engagement with the closing angle and when the actuating tilting handle is raised, said pressure rod pivots said tilting member

  such that said closing cam pivots in the

  of the lock housing and thus releases the angle

closure.

  To fasten the snap closure according to the invention

  tion, it is sufficient to spare in the cabinet door or the ele-

  similarly a large through-hole and, in addition to the latter, a small centering bore, for assigning to the shell and the casing housing the snap lock respective appropriate positions on the door 6, cabinet or the like . It is enough to have pressure rods of different lengths to adapt the

  snap closure on cabinet doors or similar elements

  different thicknesses. These pressure rods are simple and inexpensive parts, so that a set of pressure rods of different lengths can be provided with each click closure and that the rod of

  pressure of suitable dimensions can always be

  selected when incorporating said snap closure

  in a cabinet door or the like.

  In a judicious embodiment, to allow a subjection of the shell and the boot

  from the lock to the cabinet door or the like element to the

  of the same fixing means, said shell and said

  including, within their projection protrusions,

  in the form of bushings, mutually aligned tappings, which provide the connection between said shell and

said boot.

  In another embodiment according to the

  vention, to allow a safe and free from jamming guidance

  of the pressure rod (forming an indi-

  viduel) in the shell, the guiding element of this

  pressure rod consists of a sleeve with a

  longitudinal check, in which case said pressure rod (of round section) and the driving projection are movable

  axially without being able to rotate, in said

  and in said longitudinal notch, respectively.

  In another type of embodiment, to ensure

  a secure coupling between the rocking action handle

  the pressure rod and the tilting member, as well as to ensure that the force required to ensure the closing position is applied to the closing cam of said tilting member, said tilting member is in contact by an arm with the pressure rod and it supports, on

  a nipple offset from its pivot axis, a res-

  Helical shaped reminder, which is supported by one of its extreme branches on the arm applied against the pressure rod and, by its other extreme branch, on the bottom

  of the lock casing, and which pushes said stem of

  in the direction of the tilting handle.

  In an improvement according to the invention, to limit with certainty the pivoting range of the tilting member integral with the closure cam, as well

  in its closed position than in its open position.

  ture, this tilting member comprises a stop which determines the extreme limit of the closing position of the tilting member, coming into contact with a heel or similar element of the lock housing; and the extreme limit of

  the opening position of said rocking member is deter-

  undermined by a contact between the arm supporting the rod of

  pressure and the bottom of said lock housing.

  In another embodiment, to obtain

  a sufficiently large swivel range of the base member

  integrant with the closure cam, when the lock housing has a low height, said rocker member is provided with a mounting sleeve of its pivot axis, the latter being disposed as close as possible to the bottom of the housing of the In another embodiment, in order to obtain a play-free closure position between the closing angle and the closing cam of the tilting member, while compensating for the fixing tolerances, the region of said cam engages with -back with said

  angle, in the closed position, consists of a surface of

  convex curvature; and the region of said angle, imprisoned

  behind and turned towards said cam, consists of an over-

  concave shape control face, the curvatures of these two control surfaces being such that the distance separating them in the closed position increases from

  lock housing. Thanks to the variable contact line

  With its control surface on the control surface of the closing angle, the closing cam exerts on the door of the cabinet or the like a permanent pull which keeps it pressed without play on the body of the furniture. It is then sufficient to ensure that, under the most unfavorable circumstances, this contact liana did not yet leave the control surface of the cam.

  closing in the closed position. Because the

  tance between the control surfaces of the cam and the angle is variable, it is possible at any time, in

  lifting the tilting handle and moving it

  pressing the pressure rod, rotate the pivoting

  in the housing of the lock in such a way that said cam pivots inwardly of said housing out of the locking range in which it is associated.

  at the closing angle, thus allowing the opening

  the cabinet door or the like. It is then advantageous that the control surfaces of said

  angle and said cam have the same radius of cur-

Bure.

  In another embodiment, to ensure that the sleeve-shaped fastening projections of the shell and the lock casing do not interfere with the

  displacement of the pressure rod and the pivoting of the

  tilting gane, these fixing projections are hollowed out in

  the zone of displacement of the training projection of the-

  said pressure rod and in the pivot zone of said

tilting body.

  When closing the cabinet door or

  similar element, the tilting body must first be

  pivot inward of the lock casing as it passes through the area of the closing angle,

  in order to be able to then snap behind this

  Niere. In an alternative embodiment, to facilitate this pivoting movement, the control surface of the cam of

  closure is prolonged, on the opposite side to the door of the

  moire in a deflection ramp registering an acute angle with said control surface. Therefore, when closing the cabinet door or similar element, simply exercise

  on the latter a corresponding pressure.

  The invention will now be described in more detail with reference to the accompanying drawings by way of non-limiting example and in which:

  Figure 1 is a partial section of the

  snap-fastener according to the invention, which is introduced into the through-hole of a cabinet door and which occupies its closed position; Figure 2 is a plan view of the actuating rocker handle; Figure 3 is an elevational view of said tilting handle, viewed transversely; Figure 4 is an elevational view of said tilting handle viewed longitudinally; Figure 5 is a side elevation of the closing angle;

  FIG. 6 is a plan view of said body

Niere;

  FIG. 7 is a section of the observation shell

  perpendicular to the pivot axis of the actuating rocking handle FIG. 8 is a section of said shell

  observed parallel to the axis of pivoting of said

  swinging and partially offset from this axis;

  FIG. 9 is a sectional view of the casing of the ser-

  FIG. 10 is a plan view of the pressure rod, perpendicular to the pivot axis of the rocker member; and

  Figure 11 is a side elevation of the

called rod.

  On the section of Figure 1, we see the door 10 of a cabinet, which is for example articulated by means of known hinges, at its upper edge not shown,

  on a body 12 of the furniture. In the vicinity of its lower edge

  10, the door 10 has a through hole 11. A shell 13 is introduced into this hole 11 by its anterior face, by means of a fixing projection 20 in form

  of socket, then it is fixed in this hole. Through

  With the aid of a fixing projection 33 in the form of a socket, the casing 32 of a snap lock is inserted into the hole 11 from the rear face of the door 10, and then it is fixed in this hole. Angled edges 14 and 34 of the shell 13 and the housing 32, respectively, overflow

  hole 11 on either side of the door 10.

  The invention relates to a swinging actuating lever 21 which is rotatably mounted in the shell 13, which has in its edge 14 two bores 17 facing one another and intended for

  receive studs, as shown in Figures 7 and 8.

  As illustrated in FIGS. 2 to 4, the tilting handle 21 comprises on its underside two housings 22 and 24 with bores 23 and 25 for receiving said studs. On its transverse side turned towards the shell 13,

  the tilting handle 21 terminates with a maneuvering pin.

  vre 26 which is engaged from below with the edge 24 of

  said shell 13 and which thus determines the initial position

  the shell 13 has, beyond its attachment projection 20 in the form of a socket, a centering protrusion 18 which is introduced into another through hole which is formed in the door 10 of the cabinet, has a smaller corresponding section. The housing 32 of the lock also has a centering projection of this type, which is aligned with the centering projection of the shell 13 and which can be inserted into the same through hole. Of

  In this way, the shell 13 and the casing 32 can be

  days placed in their respective correct positions in the through hole 11 of the door 10. Said housing 32 and said shell 13 may still have, at

  the inside of their attachment projections in the form of

  1a, 20 and 33 respectively, respective threads 19 and 35, so that they can be connected one to

  the other by fixing screws and locked in the hole

  11 side of the door 10 of the cabinet.

  The shell 13 is equipped with a guide element

  15 which, having the shape of a socket in which

  is provided with a longitudinal notch IO, is located

  below the rotary actuating handle 21 rotatably mounted, and which houses a pressure rod 27 shown in Figures 10 and 11. This rod 27, of round section, has at its upper end facing the handle 21 a projection of 28. This projection 28 is in

  contact by its inclined upper face on the underside

  inclined rim of the actuating projection 26 of the

  21. The lower end of the pressure rod 27 is supported on the arm 39 of a rocker member 38 pivotally mounted in the housing 32 of the lock. The length of the rod 27 is chosen according to the thickness of the door 10 of the cabinet, so that the snap closure according to the invention can be incorporated into doors 10 of cabinets of different thicknesses, thanks to a

  set of pressure rods 27 having different lengths

  gueurs. The fixing projection 20 (in the form of a sleeve) of the shell 13 and the guide element 15 in which the longitudinal notch 16 is hollowed out are hollowed out so that the pressure rod 27 comprising the driving projection 28 is moved to the organ

  tilting 38 when the free end of the handle

  culante 21 is raised. The pressure rod 27 can then

  easily move axially, but rotates

  in the guide element 15 is prohibited. The protrusion

  fastener 33 (socket-shaped) and the edge 34 of the housing

  2O tier 32 of the lock are also hollowed out in the vicinity

  of the pivoting member 38 so as not to impede the movement of

  pivoting member 38. The latter has a sleeve 40 for mounting its pivot axis 36, said

  sleeve being held in place in the bores of the

  tier 32 of the lock. The pivot axis 36 is then as close as possible to the bottom of said housing 32, so as to allow a sufficiently large pivoting range of the tilting member 38, even when said case

  32 has a low height. The tilting member 38 comprises

  door, away from its pivot axis 36, a stud 42 on which is threaded a return spring 43 helically shaped. the spring 43 is supported by one (44) of its extreme branches against the lower face of the arm

  39 of the member 38 which supports the pressure rod 27. The

  end branch 45 of the return spring 43 bears against the inner face of the bottom of the housing 32 of the lock,

  such that the member 38 is pushed in the anti-direction

  (see Figure 1) against the lower end

  of said rod 27. The driving projection 28 of

  this rod 27 pushes the projection of actuation 26 of the pole.

  21 against the edge 14 of the shell 13, so that the handle 21 takes its initial position shown in Figure 1. In addition, the pivoting of the tilting member 38 is limited by a stop 41, when the latter

  strike a heel 37 of the bottom of the housing 32.

  In the closed position shown in FIG. 1, the pivoting member 38 protrudes beyond the lock housing 32 by a closing or locking cam 46, and it engages from behind with a

  closing angle 29 which is fixed to the body 12 of the

  by means of a fastening plate 49 pierced with fixing holes 31. The fastening is then ensured in such a way that

  that the rectilinear surface of the angle iron 29 comes

  flush with the anterior face of the body 12 of the cabinet, and that said bracket 29 is extended substantially to the level of the housing 32. The locking cam 46 engages a convex control surface 47 behind a concave control surface The assembly is made in such a way that the line of contact between the cam 46 and the angle iron 29 is still in the region of the convex control surface 47 of said cam 46, even under the circumstances. more unfavorable. The two control surfaces 30 and 47 have the same radius of curvature, but they are however arranged in such a way that, in the closed position, the distance separating them progressively increases from the housing 32 of

  the lock. The result is that the tilting member 38 can

  rotate clockwise towards the inside

  the housing 32, leaving its closed position.

  For this purpose, the free end of the actuating handle 21 is raised and the pressure rod 27 is moved towards the tilting member 38. The return spring 43 is bandaged when said member 38 pivots. Once the locking cam 46 of the tilting member 38 has pivoted inwardly of the housing 32, it is possible to open the door 10 of the cabinet, since said housing 32 can be moved next to 29. When the

  door 10 is open, the return spring 43 returns the or-

  swinging arm 38 to its closed position when the actuating handle 21 has been released. The stop 41 is

  then locked against the heel 37 of the housing 32 of the lock.

  When the door 10 of the cabinet is closed again, a simple pressure exerted on this door 10 causes the tilting member 38 to pivot, so that the locking cam 46 can cross the zone of the closing angle 29. To facilitate this deviation of the organ

  38 and the pivoting of the cam 46 into the housing

  32, the face of said cam 46 opposite said door is shaped as a deflection ramp 48 which is at an acute angle with the control surface 47 of said cam 46. It goes without saying that many modifications can be made to the snap closure described and

  shown without departing from the scope of the invention.

he

Claims (11)

  1. Snap closure for cabinet doors or the like, comprising a shell which can be inserted into a recess of said door or the like, through the front face of this recess, and in which an actuating rocker handle can rotate which, when raised, moves a pressure rod   in the direction of the posterior face of said recess in   Then said latch, subjected to the action of a spring, a snap lock disposed at the rear face of the door or the like, a closing position in which it is engaged from behind with a closing angle secured to the body of the furniture, to an open position in which it releases said angle iron, closure characterized in that said shell (13) and the housing (32) of the lock housing the lock are provided, on their facing faces, bush-shaped fastening projections (20, 33) and mutually aligned centering projections (18) outside said fastening projections (20, 33); in that a guiding element (15) of said shell (13) houses a pressure rod (27) movable axially and coinciding with the thickness of the door (10) or the like; in that said pressure rod (27) is applied by a lug or drive protrusion (28)   against an actuating projection (26) of the folding handle   lante (21) and bears against a lock which   sensing in the form of a rocker member (38), is pivotally mounted in the housing (32) of the lock; in that said rocking member. (38) is held by a return spring (43) in its closed position, thus applied against said pressure rod (27); in that, in its closed position, said member (38) protrudes beyond the housing (32) by a closing or locking cam (46) engaged at the rear with the closing angle (29) ; and in that when the handle (21) is. raised, said rod (27) pivots said member (38) so that its cam (46) pivots inwardly of said housing (32) and thus releases   said closing angle (29). -   Snap fastener according to Claim 1, characterized in that the guide element (15) of the pressure rod (27) consists of a sleeve in which a longitudinal notch (16) is formed, in which case   said pressure rod (27), of round section, and the   of the drive (28) are axially movable without any   time to turn in said socket and in said   longitudinal check mark (16), respectively.   3. Snap closure according to one of the claims   cations 1 and 2, characterized by the fact that the   (38) is in contact by an arm (39) with the stem of   pressure (27) and supports, on a pin (42) offset by   at its pivot axis (36), a return spring (43), which, helically shaped, is supported by one (44) of its extreme branches against the arm (39) applied against the pressure rod ( 27) and, by its other end leg (45), on the bottom of the housing (32) of the lock, and which pushes said rod (27) towards the actuating handle (21). 4. Snap closure according to any one of   Claims 1 to 3, characterized in that   the tilting member (38) is provided with a stop (41) which determines   mine the extreme limit of the closing position of said member (38) coming into contact with a heel (37) or element   analogue of the housing (32) of the lock.   5. Snap closure according to any one of   Claims 1 to 4, characterized in that the   extreme limit of the opening position of the   lant (38) is determined by a contact between the arm (39) supporting the pressure rod (27) and the bottom of the housing (32) lock.   6. Snap closure according to any one of   Claims 1 to 5, characterized in that the organ   tilt (38) is provided with a sleeve (40) for mounting its pivot axis (36), this pivot axis (36) being arranged as close as possible to the bottom of the housing (32) of the lock. 7. Snap closure according to any one of   Claims 1 to 6, characterized in that the   region of the latch cam (46) of the latch member   lant (38), engaging from behind with the closing angle (29) in the closed position, consists of a convexly curved control surface (47); and by the fact   that the region of said angle iron (29), imprisoned   behind and facing said locking cam (46),   consists of a concave control surface (30), the   two control surfaces (47, 30) being such   that the distance separating them into a closed position   gradually from the housing (32) of the lock.   Snap fastener according to Claim 7, characterized in that the control surfaces (30,   47) of the closing angle (29) and the cam of ver-   rusting (46) of the tilting member (38) have a same radius of curvature.   9. Snap closure according to any one of   Claims 1 to 8, characterized in that the   shell (13) and the housing (32) of the lock comprise,   inside their fixing projections (20, 33) in form   of sockets, tappings (19, 35) mutually aligned and providing the connection between said shell (13) and said housing (32).   10. Snap closure according to any one of   Claims 1 to 9, characterized in that the   sleeve-shaped fastening projections (20, 33) of the shell (13) and the lock casing (32) are recessed in the region of movement of the drive protrusion   (28) of the pressure rod (27) and in the pivot zone tilting member (38).   11. Snap closure according to any one of   Claims 1 to 10, characterized in that the   control surface (47) of the locking cam (46) extends, on its opposite side to the door (10) or the like, by a deflection ramp (48) inscribing a   acute angle with said control surface (47).