FR2845110A1 - Door, gate or shutter retainer with catch on pivoted lever has rotary cam, sprung pusher with stop end and lock - Google Patents

Abstract

The retainer, consisting of a housing (1) with a pivoted lever (4) and a catch to hold the lower edge of a door (3), gate or shutter, has a sprung cam (6) fixed to the end of the lever inside the housing and able to hold the lever in fastened or released positions, and a spring-loaded pusher (7) with an end stop (72) for the door and a lock (74) for the cam. When the lever is depressed the catch releases the door and the lock engages with the cam to hold it in the released position. When the door is pushed against the stop the lock disengages the cam and the lever springs up to engage with the door.

Description

Field of the invention

  The present invention relates to a door leaf stop, gate or shutter comprising a housing receiving a pivoting arm provided with a stop stop for retaining the leaf, this arm being able to be camouflaged by rotation to allow the leaf to pass.

Prior art

  There are known multiple embodiments of door stops or, more generally of a leaf or leaf, for example shutter stops. These devices consist of a pivoting lever or arm 10 carrying a stop intended to retain the leaf. The arm is held in the leaf retention position by a spring. To release the leaf, you must press on the arm to allow the passage of the leaf.

  When the arm is released, it returns to the retaining position.

  To receive the wing, the retaining stop has a ramp-shaped front face over which the wing passes to retract the stop and pass behind it, by pivoting the arm against the action.

spring.

  Such a leaf stop has the disadvantage of rubbing against the leaf when the latter is in place or is released therefrom. 20 Object and advantages of the invention The present invention aims to remedy these drawbacks and proposes to develop a door leaf, leaf, shutter stop allowing a particularly flexible operation, and without the stop rubbing against the leaf and allowing the latching position of the leaf to be locked for very diverse applications.

  To this end, the invention relates to a door stop of the type defined above, characterized by - a rotary cam integral in rotation with the movable arm between a leaf retention position and a waiting position allowing reception or release of the leaf , and returned to the retaining position by a return spring, - a spring plunger forming * a stop for the leaf, and * a lock cooperating with the rotary cam to retain it against the action of its spring, in position wait and authorize its pivoting to release the leaf by a release action exerted on the pivoting arm, against exceeding a force threshold resulting from the combination of the effect of the return spring of the rotary cam and that of the pusher spring, a thrust exerted by the leaf on the pusher releasing the cam from its standby position and

  allowing it to pass into the leaf retention position.

  Like traditional door or shutter stops, stop 5 opens by pressing on the stop or the arm which carries it. But unlike known stops, by pressing the stopper or the arm, the arm is locked in the waiting position which allows the leaf to first disengage from the door stop without rubbing on it and then during the next time the leaf is closed, it can come to a stop in the door without having to rub on the stop, the only contact of the leaf against the push-button releasing

  the pivoting or tilting of the arm around its axis and the establishment of the stop against the leaf. Thus, an action on the arm or the stopper makes it possible to pass into the release position (waiting position).

  Locking the arm in the waiting position avoids having to manually hold the arm in the waiting position, allowing, for example, actions

  not simultaneous or consecutive actions of the same hand.

  This action can also be done remotely by a cable acting directly on the rotary cam, against its spring to put the arm in the waiting position and allow the release of the leaf without having to push the arm and its stop which can be difficult accessible.

  Such a leaf stop can be applied to the retention of leaves of any type such as shutters, doors or gates. For shutters, the leaf stop can be miniaturized and include means for fixing to the wall. In the case of a door leaf or a gate leaf, it will be fixed to the floor or to a wall.

  Finally, as the leaf stop is retained in the standby position and the leaf does not have to rub on the stop to pass into the hold position, it is possible to make the stop without having a ramp which makes it possible to reduce the length thereof which projects 30 in the leaf retaining position. This reduction to the strict minimum of the length of the projecting part is an important element in the case of a garage door leaf, to prevent the projecting part from hindering the passage of a wheel or from being deformed or torn off. accidentally

by the passage of a wheel.

  According to an advantageous embodiment, the stop comprises a horizontal axis around which the arm pivots or switches between a position

  lowered (standby position) and a raised position (hold position).

  In the case of this embodiment, it is advantageous for the return spring to be a torsion spring engaged around the axis of the rotary cam carrying the lever and bearing on the cam and on the housing.

  Within the framework of the above general characteristics, the pusher comprises - a stop to cooperate with a projection of the rotary cam for the standby position, and - a ramp to cooperate with a ramp of the rotary cam, upstream of the stop in the direction of pivoting of the cam towards the standby position to release the stop stop relative to the leaf by

  an intentional pivoting action exerted on the stop.

  A particularly compact form of the lock is produced if the latter is a tubular part slidably mounted in the housing 15 and housing the spring resting moreover against the housing.

  According to another advantageous characteristic, the arm pivots about its horizontal axis between a lowered position to the right or to the left (waiting position) and a raised position (retaining position) against the action of a return spring, and - the rotary cam has a locking housing on the left and a

lock housing on the right.

  Thus in these conditions, the arm does not tilt around a horizontal axis but it pivots around its own axis.

  In the case of this particularly advantageous embodiment, - the torsion return spring comprises a movable support at each of its ends, * these supports being intended respectively for the movement of the stop stop to the left or to the straight, and * these supports being mounted pivoting on the axis of the pivoting arm, - each of the pivoting supports comprises a stop respectively associated with a limit stop and a drive tab on the cam, and according to the direction of pivoting from the cam to the receiving position of the arm, one of the supports pivots with the cam applying the spring return force to it, the other support being fixed in the end position.

stroke (stops).

  According to another advantageous characteristic, the pivoting supports cooperate by a drive tab, respectively with the

  cam by means of a rod integral in rotation with the cam and parallel to its axis of rotation.

  Drawings The present invention will be described below in more detail with the aid of embodiments of a leaf stop according to the invention shown in the appended drawings in which: - Figure 1 is a schematic view of a first embodiment of a leaf stop in the leaf retention position, - Figures 2A, 2B are views similar to that of Figure 1 mon10 trant leaf stop in the standby and engagement position of the leaf in the stop, - Figure 3 is a schematic sectional view of a second embodiment of a leaf stop according to the invention, - Figure 3A is a front view of the leaf stop of Figure 3, - Figures 3B, 3C, 3D show the position of different elements of the leaf stop of Figure 3 in the leaf retention position, - Figures 4 - 4D show the leaf stop according to second embodiment in the waiting position to release or receive the leaf, the arm being pivoted to the right, - Figures 5 - 5D are views corresponding to those of Figures 4

  4D but for the arm pivoted to the left.

  Description of embodiments

  According to FIG. 1, a first embodiment of a door stop or more generally of a leaf such as a shutter consists of a housing 1 fixed, for example, to the ground by a support 2, in a position corresponding to the retaining position of the leaf 3, by the leaf stop.

  The leaf 3 is retained by an arm 4 provided with a stopper 5. This arm 4 is integral in rotation with a rotary cam 6 rotating 30 with its horizontal axis 10 (perpendicular to the plane of Figure 1) and cooperating with a pusher 7 formed of a tubular sleeve 71 terminated by a support head 72, for example constituted by an elastic plug and housing a spring 8 bearing against the bottom of the housing 1. This pusher 7 constitutes, by its head 72 , a stop for the leaf 3 in the retained position.

  The pusher 7 carries, integrally by means of a tab 73, a control member 74 forming both a stop and a ramp. The stop 74-1 is constituted by the surface, on one side of this or-

  gane 74, and the ramp 74-2, by the surface on the other side of this member 74.

  The lock member 74 cooperates with a control member 61 carried by the rotary cam 6. This rotary cam 6 in the form of a disc comprises, in a manner homologous to the lock 73, a control member 61 with a stop 61-1 d 'one side and one surface in the form of

ramp 61-2 on the other side.

  A return spring 9, surrounding the axis 10 carrying the rotary cam 6 and the arm 4, returns the arm 4 to the retaining position.

  One end 9-1 of the spring 9 bears against a bulb 62 carried by the rotary cam 6 and the other end 9-2, comes against

  a stop 11 of the housing 1. The torsion spring 9 exerts a torque acting on the rotary cam 6 and the arm 4 in the direction of arrow A, that is to say pushing the arm 4 towards the receiving position shown in the figure 1.

  In its retaining position 3 shown in Figure 1, the leaf 3 is held between the retaining surface 51 of the stop 5 and the head 72 of the pusher 7. It is advantageous that, to avoid beat noises under the effect wind, especially if the leaf is a shutter, the leaf 3 is well wedged in this position and for this the stop 5 or the head 72 of the pous20 evening 7 are adjustable; the head 72 is preferably adjustable by screwing in

the sleeve 71.

  The arrangement of the control member 61 and of the latch 74 according to FIG. 1 with the latch 74 carried by a lug 73 prevents the spring 8 of the pusher from exerting on the rotating carne 6 a torque acting in the opposite direction of that of arrow A; thus, there is a stable end-of-travel position for the pusher 72 subjected to the action of the spring which can then only be pushed in the direction B. The arm holding position 4

  and from the stop 5 is therefore independent of the spring 8.

  The position shown in FIG. 1 is limited by the slot 12 in the housing 1 through which the arm 4 passes.

  To release the leaf 3, the foot is pressed on the stop 5 (release action AD) to hook the arm 4 and the stop in the waiting position, unlocking the leaf 3. The leaf 3 can then pass without rub over the stopper 5. By acting on the stopper 5, the rotary cam 6 is rotated so that the ramp 61-2 of

  the control member 61 cooperates with the ramp 74-2 of the member 74 and pushes the plunger 7 in the direction of the arrow B against the combined action of the springs 8 and 9.

  Then, the member 74 passes over the control member 61 and its hooking surface 74-1 is hooked behind the control member 61 against its retaining surface 61-1. The arm 4 and the rotary cam 6 then occupy the position shown in FIG. 2A. 5 This position, called the waiting position, allows the leaf 3 to be released or

  the arrival of the wing 3 against the door stop, that is to say the pusher 7.

  Then, the leaf 3 pushes the pusher 7 in the direction of the arrow B (FIG. 2B) which releases the member 74 from the control member 61 of the rotary cam 6; the spring 9 pivots the rotary cam 6 1o in the direction of the arrow A and raises the arm 4 and the stopper 5 in the direction of the arrow A to come into the retaining position shown in the

figure 1.

  Under these normal operating conditions, the wing 3 does not rub on the arm 4 or the stop 5 or when the wing is placed in the stop or when it is released.

  If for an unusual reason, the pusher 7 has been depressed so as to release the rotary cam 6 and the arm 4 with its stopper 5 until in the retaining position (FIG. 1) while the leaf 3 is closed or n is not in the retaining position, the ramp 52 of the stopper 20 allows the leaf 3 to pass over the stopper to come into

the restraint position.

  Figures 3-5D show a second embodiment of a leaf stop according to the invention in its different positions of use. The elements of this leaf shutter counterpart of those of the first embodiment will bear the same increased references

of 100.

  According to Figure 3, the leaf stop consists of a housing 101 fixed to a wall or the ground and retaining the leaf 103 of a door, a shutter or the like, using a stopper 105 carried by an arm 104 pivoting about this longitudinal axis between the position shown in FIG. 3 and an open position on the right or an open position on the left shown in broken lines in FIG. 3A. The position of FIG. 3 is the so-called retaining position and the 35 positions tilted to 900, either to the left or to the right are the waiting positions allowing the leaf 103 to be released from the stop or the

  bring in the stop to retain it.

  This leaf stop also comprises a slide 107 whose head 172 constitutes both a stop for the leaf 103 and a lock making it possible to retain the stop in one of its two waiting positions to be released automatically by the leaf 103 which comes to bear against the head 172 of the pusher 107 as will be seen later.

  The arm 104 is extended by an axis 104-1 mounted in a bearing 104-3 of the housing 1, just as the axis 104 is mounted in a bearing 104-2 on the opposite face of the housing 101 by means of a nut l if, as in this example, the axis 104 has a square section. The rotating arm 104 carries, in rotation, a rotary cam 106 returned to its retaining position 105 from either of the waiting positions to the right or to the left 105A, 105B by a return spring 109 of which one end 191 is associated with a support 121 and the other end 192 is associated with a support 122. The supports 121, 122 in the form

  discs are rotatably carried freely by the axis 104-1.

  The rotary cam 106 comprises a rod 123 integral with the rotary cam 106 and substantially parallel to the axis 104-1 of the arm 104.

  This rod 123 is intended to cooperate alternately with one or the other support 121, 122 depending on whether the stopper is in the open to the left or open to the right position. The pusher 107 comprises a control member 174 in the form of a lock cooperating with the cam

  rotary 106 under the conditions seen below.

  In more detail according to FIG. 3B, the rota25 tive cam 106 is a disc carried by the arm 104 with a square section. The rotary cam 106 comprises, in two end positions, diametrically opposite, a respective housing 161A, 161B, corresponding to the position of opening on the left and opening on the right to receive the latch 174 of the pusher 107 when the rotary cam 106 is pivoted 900 in one direction or the other (Figure 3B).

  There is also a ramp 162 in which a part of the latch 174 circulates during the quarter-turn rotation of the cam

rotary 106.

  FIG. 3B also shows the rod 123 carried by the rotary cam 106.

  FIG. 3C shows the corresponding rotational position of the first support 121 of the spring 109. Depending on the direction in which the stopper 105 has been pivoted, this first support 121 will be active or neutralized.

  This support 121 includes a stop 121-1 intended to cooperate with a fixed stop 111 of the housing 101 and a stop 121-2 to cooperate, if necessary, with the rod 123. The spring 109 is connected to the support 121 by the piece 1213 integral with this support 121. The support 121 is movable in rotation about the axis 104-1 which passes through it.

  FIG. 3D shows the second support 122 for the same position of rotation of the rotary cam 106, indicated by the rod 123.

  This support 122 also includes a stop 122-1 intended to cooperate with the fixed stop 112 carried by the housing 101 and a bu10 t 122-2 intended to cooperate with the rod 123.

  The comparison of FIGS. 3C, 3D shows that the supports 121, 122 have symmetrical shapes and in the return position shown in FIGS. 3B, 3C, 3D, the supports 121, 122 occupy symmetrical positions with respect to the straight line passing through the middle of the fixed stops 111, 112 constituting limit stops and the axis of the

rod 123.

  This position corresponds to the retaining position of the stopper 105.

  Using FIGS. 4-4D, the waiting position on the left 105B will be described allowing the release or reception of a leaf 103.

  The particular arrangement of the constituent elements of the leaf stop clearly appears in Figure 4. The stop stop 105 has been folded to the right according to the orientation of the figure and is in position 105B.

  In this position, the leaf 103 can pass freely over the stop either in the direction of release or in the direction of setting

place of the leaf in the stop.

  In this waiting position, the latch 174 of the pusher 107 is engaged in the housing 161B of the rotary cam 106. This position

  is shown in Figures 4B-4D.

  FIG. 4B shows the rotary cam 106 carried by the arm 104 of square section as well as the pusher 107 and its latch 174 which has slid along the ramp 162 to come into the housing 161B put

in this position.

  For this same position of rotation, the first support 121 35 will have the position shown in FIG. 4C and the second support 122, the position shown in FIG. 4D.

  The comparison with FIGS. 3C, 3D shows that the support 122 has not turned around its axis and only the rod 123 has come off.

  placed clockwise. On the contrary, the support 121 has been pivoted 90 ′ by the rod 123 against the force developed by the spring 109 (it is recalled that this support 121 is one of the supports of the spring 109, the other being the support 122).

  The spring 109 therefore tends to push back the rod 123 and

  thus the rotary cam 106 anticlockwise to return the disc, that is to say the rotary cam 106 in the retaining position or neutral position presented in FIG. 3B.

  Figures 5-5D show the opposite case with a stopper 105 turned in the opposite direction, for a position

opening right.

  Without repeating all the explanations given above with regard to FIGS. 4-4D, which are transposed to the previous case, it should simply be emphasized that for the pivoting of the arm 104 and of the stop 105 in the opposite direction to that of the 'previous example, the support 121 now remains fixed; the rod 123 controlled by the rotary cam 106

then moves the support 122.

  The description of the two operating modes above provides for actuation of the leaf stop by an action on the arm 20 or its stop, which supposes that the stop or the arm are accessible.

  But there are cases in which it would be interesting to be able to install a leaf stop, in particular in the form of a shutter stop, outside

handy.

  However, it is possible to act remotely on the shutter stop by acting on the cam using a cable or a linkage when, as indicated, the arm or the stopper are not easily accessible . The shutter stop can thus be located at a relatively large distance from the hinges of the hinges. The shutter stop is put, in these conditions, in the waiting position by this remote action and to wedge the shutter, it suffices to push it by hand since the shutter is accessible. By pushing the shutter, the push button is actuated, which releases the arm and its stop to wedge the shutter. Conversely, to release the shutter, the cam is operated remotely, failing to act on the arm and once the arm is put in the standby position,

release the shutter to close it.

  The actuating cable can be a free cable passing over idler pulleys to reach the actuating member installed within easy reach, for example in the window frame. It can also be a BOWDEN cable or a linkage. The great latitude in positioning the door stop, thanks to this possibility of remote actuation, is an important advantage for this application of the leaf stop as a shutter stop because it allows the shutter stop to be moved away relative to the axis of the hinges to take account of the possibilities of installation 5 of the shutter stop or to ensure better hold of the shutter against the wind,

  thanks to this distance from the pivot axis of the flap.

Claims (4)

  1) Door leaf, gate or shutter stop comprising a housing (1, 101) receiving a pivoting arm (4, 104) provided with a stop stop (5, 105) for retaining the leaf (3, 103) , this arm (4, 104) being able to be retracted by rotation to let the leaf pass (3, 103), characterized by a rotary cam (6, 106) integral in rotation with the arm (4, 104) movable between a retaining position of the wing and a waiting position allowing reception or release of the wing, and returned to the retaining position by a return spring (9, 109), - a spring plunger (7, 107) (8, 108 ) forming * a stop (72, 172) for the leaf (3, 103), and * a lock (74, 174) cooperating with the rotary cam (6, 106) to hold it against the action of its spring (9 , 109), in the waiting position and allow it to pivot to release the leaf by an action of   clearance exerted on the pivoting arm (4, 104), against exceeding a force threshold resulting from the combination of the effect of the return spring (9, 109) of the rotary cam (6, 106) and of that of the pusher spring (8, 108), a thrust exerted by the leaf on the pusher releasing the cam from its standby position and allowing it to pass into the leaf's retaining position.   2) door stop according to claim 1, characterized by a horizontal axis (10) around which the arm (4) pivots between a position   lowered (standby position) and a raised position (hold position).   ) Door stop according to any one of claims 1 and 2,   characterized in that the return spring (9) is a torsion spring, engaged around the axis (10) of the rotary cam (6) carrying the lever (4), and bearing on   the rotary cam (6) and on the housing (1).   4) Door stop according to any one of claims 1 and 2, 35 characterized in that   the pusher (7) comprises - a stop (74-1) for cooperating with a projection (61, 61-1) of the rotary cam (6) for the standby position, and - a ramp (74-2) for cooperate with a ramp (61-2) of the rotary cam (6), upstream of the stop (74-1) in the direction of pivoting of the cam (6) towards the waiting position to release the stop stop (5) by relative to the leaf (3).   ) Door stop according to claim 1, characterized in that   the pusher forming a lock (7, 107) is a tubular part slidably mounted in the housing (1, 101) and housing the spring (8, 108) pressed 1o against the housing (1, 101).   ) Door stop according to claim 1, characterized in that - the arm (104, 105) pivots about its horizontal axis between a lowered position to the right or left (waiting position) and a raised position (position retaining) (105A, 105B) against the action of a return spring (109), and - the rotary cam (106) has a locking housing on the left and a locking housing on the right (106A, 106B).  20) Door stop according to claim 6, characterized in that - the torsion return spring (109) comprises a movable support (121, 122) at each of its ends (191, 192), * these supports (121, 122) being intended respectively for the movement of the stopper (105) to the left or to the right, and * these supports (121, 122) being pivotally mounted on the axis (104-1) of the pivoting arm (104 ), - each of the pivoting supports includes a stop (121-1, 122-1) res30 pectively associated with a limit stop (111, 112) and a   drive tab (121-2, 122-2) on the cam (106), and according to the direction of pivoting of the cam (106) towards the receiving position of the arm, one of supports (121, 122 ) pivots with the cam (106) by applying the spring return force (109) to it, the other support (121, 122) being fixed in the end position (stops 111, 112).   ) Door stop according to claim 7, characterized in that the pivoting supports (121, 122) cooperate by a drive tab (121-1; 122-1), respectively with the cam (106) via '' a rod (123) integral in rotation with the cam (106) and   parallel to its axis of rotation (104-1).