ES2241481B1 - "CLUTCH DEVICE WITH ANTIPANIC FUNCTION FOR ELECTROMECHANICAL LOCKS. - Google Patents

Abstract

Clutch device with panic function for electromechanical locks in which the clutch shaft (7) has a cylindrical part (14) and the inner end (16) has a clutch head (19) with a truncated pyramid shape that can fit into the coupler Sliding for a second pin (21) that with sliding adjustment crosses the torn windows (13) of the clutch body (6) and has a recess (22) that faces and is reciprocal of the clutch head (19), the ring Sliding (9) is provided with a perimeter channel (23), has sliding adjustment with respect to the crown (12) of the clutch body (6) and has a pair of holes (24) for the engagement of the second pin (21), the tubular shaft (10) is the one that rotates, the keyhole of the lock, has a cylindrical recess (25) with rotary adjustment with respect to the cylindrical part (14) of the clutch shaft (7) and has an outer square section preferably equal to the outer shaft (2) square.

Description

Clutch device with panic function for electromechanical locks.

Field of the Invention

This invention concerns a device of clutch with panic function for electromechanical locks which comprise at least one inner square axis in which it is  installed an inner handle of knob or handle, an outer shaft of  square equipped with an external handle and an electric motor provided with an output spindle for its own drive clutch device, being the interior designations and exterior taken in relation to the inner and outer sides of the lock, respectively.

As is known in electromechanical locks  there are some electrical or electronic means that, when excited  for the recognition of a valid code supported on a key, card, biometric recognition unit, waves of any type or any other means known per se, they end up producing the enabling the free opening of the lock.

Likewise, it is known that the panic function it consists in enabling the lock to be opened from its inner side in any circumstance, that is, although remain closed for access from the outer side of the same.

Prior art

In relation to locks equipped with function  The use of mechanisms that employ two is well known coaxial axes, one inside the other, of which one is rotatably linked to the rotary handle on the outer side from the door, and the other, to the handle on the inner side. A solution in this regard is in the Spanish Utility Model U-9102250. Another solution in this regard is in the European Patent EP 0 819 810 B1, from HEWI Heinrich Wilke GmbH, where the fact that there are two axes operating inside each other, It is considered as known and therefore not vindicable.

Mechanisms of locks are also known in  clutch that employ one or more internal parts than by axial displacement manage to transmit the turn of the key to lock mechanism. Different solutions in this regard exist in Spanish Invention Patents P-480.078 and P-9102323, as well as in the Utility Model Spanish U-270,150 of this same holder.

It is also known the use in locks, particularly in electronic locks, the use of a medium of accumulation of elastic energy that will be used timely during the maneuver of the lock. A solution to respect is in the Spanish Utility Model U-295,286.

Explanation of the invention and advantages

Faced with this state of affairs, the present invention advocates a panic clutch solution that It comprises a clutch body, a clutch shaft, a coupler Sliding clutch, a sliding ring and a tubular shaft; in where, the clutch body is rotatably coupled with the inner shaft of square and is a bowl that has a mounting rotary solidarity with the inner shaft and that provides a cavity coaxial polygonal section whose wall externally forms a cylindrical crown that is provided with two torn windows axially and diametrically opposed, the clutch shaft has a cylindrical part delimited between ends, exterior and inside, such that, the outer end has a square section which is reciprocal of the axial hollow of the outer square shaft which is tubular and has a transverse drill for a first pin installed through this outer shaft, and the end inside has a clutch head with truncated pyramid shape, the clutch sliding coupler is pierced through a hole fit for a second pin that slides through the torn windows of the clutch body and has an entree which is opposite and reciprocal of the clutch head, the Sliding ring is provided with a perimeter channel, has adjustment  slider relative to the clutch body crown and has a pair of holes to fit the second pin, the tubular shaft It’s the one that rotationally drags, the lock nut, has a cylindrical recess with rotary adjustment with respect to the part cylindrical clutch shaft and has an outside section square preferably equal to that of the outer square axis,  and this tubular shaft has two perforations for both third parties pins attached through the side wall of the bowl formed by the clutch body.

In this solution there are coaxial axes that they act one inside the other, as well as internal clutch means and that operate by axial displacement, but the final constitution carried out is in its parts and as a whole different from all and each of those known in the field of this invention, as its operation is also different.

In the recommended solution the coupler Clutch slider operates within the body bowl of clutch and, through the second pin, is linked to the ring with which you can slide along the windows torn between a disengaged position at the bottom of the bowl and other clutch position, separated from this bottom, in which the entrance of this sliding coupler is coupled with the clutch head of the clutch shaft. In this position of clutch, acting on the outer handle, the clutch shaft is coupled with the sliding coupler that, when turning, drags I get the clutch body which, in turn, drags the tubular shaft  of square that activates the lock; that is, that the axis of Clutch moved with the outer handle does not transmit its turn directly to the tubular axis, but it does so through the clutch device that is permanently linked in rotation to the inner shaft. Therefore, in the disengaged position the action on the outer handle does not cause the shaft to rotate tubular, since the clutch shaft attached to it has its part cylindrical just coinciding with the cylindrical shaft shaft tubular and cannot cause its drag; instead, the Rotary connection between the inner shaft and the tubular shaft is permanent, so you can always open the lock from the inside whatever the condition of the clutch (disengaged or clutch), thus establishing the panic function.

The small number of employee pieces, as well as the simplicity of its constitution individual and mounting between them. This translates into less tolerances that translate into smaller game dimensions and, by therefore, in a greater functional reliability; in this respect is from highlight the great compactness of the clutch assembly by the arrangement of the sliding ring and the sliding coupler, respectively on the outside and inside of the body of clutch, and with precision guidance in relation to the latter which also favors the maintenance of axial alignment due.

According to another particularity of the invention, in the perimeter channel of the sliding ring are located tangentially first elastic rods that are anchored transversely on a bar mounted rotatably that it also has anchored a second elastic rod that is perpendicular to the first elastic rods and which is located tangentially in the helical channel of the motor spindle electric. This solution allows, if improper handling or  fortuitous cause, the incoming of the sliding cupper and the head of  clutch were not properly aligned when the engine was driven, it happens that the spindle produces a displacement of the second rod that (unable to turn the bar for not being able to move the ring), tension the first rods accumulating an energy elastic that, as soon as proper alignment occurs, will be released and will produce the displacement of the ring and the consequent clutch As you can see this is a simple way to use an accumulation of elastic energy for later use, but different from what is cited as known in this field.

Another peculiarity of the invention is that, in relation to its horizontal resting position, the outer handle has an axis hub that has two horizontal sides opposite each other that, at the end towards which the outer handle itself extends, are joined by means of a curved convex front, while, in relation to the rotation of this outer handle, at the opposite end of these horizontal sides there is a symmetrical curved convex back that connects with the horizontal sides by means of two chamfers, one of the horizontal sides, preferably the lower, it is supported against a vertically sliding platform that is preferably installed on two helical compression springs, while, in relation to the other of these horizontal sides, there are a pair of rockers that are symmetrically arranged with respect to the rotation of the outer handle and which consist of arms, first and second, such that, at rest, and The first arm is attached to a respective side wall of the box on which the outer handle is mounted and, in the case of the rocker located on the side towards which the outer handle extends, its second arm has its tip substantially in contact with the upper of the horizontal sides at the end of the latter that converges with the curved convex front, and, in the case of the other rocker arm, its second arm faces the corresponding one of the chamfers, and whose rockers are capable of rotating in the sense in which their second arm rotates where the outer handle extends and against the elastic action of a spring, and in the rear cover of the case, there are horizontal elongated openings that cover the operational rotation path of the second rocker arms; preferably, the antagonist springs of the rocker arms are two extreme branches of the same winding installed in a pivot of the box arranged in the center between both rockers. As will be explained later, this solution enables the reversibility of the outer handle installed in a lock, very easily, without having to disassemble it or use tools
special.

Drawings and references

To better understand the nature of the present invention, in the accompanying drawings we represent a preferred form of industrial realization, which is exemplary merely illustrative and not limiting.

Figure 1 is an exploded view and in perspective illustrating the object of the invention. In it she includes an enlarged detail of the longitudinal section of the shaft interior (1) and clutch body (6), and other enlarged detail of the recess (22) of the sliding coupler (8) aligning with the head (19) of the clutch shaft (7).

Figure 2 shows the device of figure 1, in the disengaged position and seen in longitudinal section as in the expanded detail of it, but ignoring the representation of the outer handle (3) and with the clutch shaft (7) without scratching except its outer end.

Figure 3 is section 111-111 indicated in figure 2.

Figures 4 and 5 are respectively equivalent to figures 2 and 3, but referred to the position of clutch

Figures 6 and 7 are rear views of the box (40) and without the cover (42) illustrating the normal operation of the outer handle (3) according to the invention.

Figures 8, 9 and 10 are similar to those Figures 6 and 7 and illustrate the reversibility function, without disassemble, typical of the outer handle (3) according to the invention.

Figure 11 is a perspective view and rear of the box (40) with its lid (42) and shows in detail expanded the windows (43) of the back cover (42) through the which one sees and reaches the second arm (39) of rockers.

In these figures the following are indicated references:

one.-

Axis inside

2.-

Axis Exterior

3.-

Outer handle

4.-

Electric motor

5.-

Motor spindle

6.-

Clutch body

7.-

Axis clutch

8.-

Sliding coupler clutch

9.-

Sliding ring

10.-

Axis tubular

eleven.-

Coaxial body cavity (6)

12.-

Cylindrical body crown (6)

13.-

Torn windows in crown (12)

14.-

Cylindrical part of clutch shaft (7)

fifteen.-

Outer end of clutch shaft (7)

16.-

Inner end of clutch shaft (7)

17.-

End Transverse Drill exterior (15)

18.-

First pin

19.-

Clutch head end interior (16)

twenty.-

Sliding Collector Hole (8)

twenty-one.-

Second pin

22.-

Incoming in sliding cupboard (8)

2. 3.-

Perimeter channel of sliding ring (9)

24.-

Sliding Ring Holes (9)

25.-

Tubular shaft cylindrical bore (10)

26.-

Tubular shaft perforations (10)

27.-

Third pins

28.-

Bar

29.-

First elastic rods

30.-

Second elastic rod

31.-

Horizontal sides on handle outside (3)

32.-

Curved Convex Front

33.-

Curved convex back

3. 4.-

Chamfers

35.-

Vertically platform slider

36.-

Helical springs of compression

37.-

Seesaws

38.-

First rocker arm

39.-

Second rocker arm

40.-

External handle box (3)

41.-

Rocker Spring (37)

42.-

Case back cover (40)

43.-

Elongated lid openings (42)

44.-

Pivot in box (40)

Four. Five.-

Axis rotary cylindrical

Exhibition of a preferred embodiment

Regarding the drawings and references listed above, illustrated in the attached drawings, a mode of preferred embodiment of the invention, referred to a device of clutch with panic function for locks electromechanical, comprising at least one inner shaft (1) of square in which an internal handle of knob or handle, an outer shaft (2) of a square equipped with a handle exterior and an electric motor (4) provided with a spindle (5) of output for actuation of the clutch device itself, being the interior and exterior designations taken with relationship to the inner and outer sides of the lock, respectively; where the existence of an electric motor with spindle is conventional, without presupposing what the technological means that end up producing timely activation of the electric motor.

Figure 1 illustrates the constitution of the recommended clutch device, comprising a body of clutch (6), a clutch shaft (7), a sliding coupler of clutch (8), a sliding ring (9) and a tubular shaft (10); in where, the clutch body (6) is rotatably coupled with the inner axis (1) of square and is a bowl that has a rotary assembly integral with the inner shaft (1) and that provides a coaxial cavity (11) of polygonal section whose wall forms externally a cylindrical crown (12) that is provided with two windows (13) axially torn and diametrically opposed, the axis of clutch (7) has a cylindrical part (14) delimited between ends, exterior (15) and interior (16), such that the end exterior (15) has a square section that is reciprocal of the hole axial of an outer shaft (2) of square which is tubular and that It has a cross hole (17) for a first pin (18) installed through this outer shaft (2), and the inner end (16) has a clutch head (19) with a truncated pyramid shape, the clutch sliding coupler (8) is crossed by a hole (20) for a second pin (21) that fits Sliding through the torn windows (13) of the body of clutch (6) and has a recess (22) that is facing and is reciprocal clutch head (19), sliding ring (9) It is provided with a perimeter channel (23), has sliding adjustment with respect to the crown (12) of the clutch body (6) and has a pair of holes (24) for the engagement of the second pin (21), the tubular shaft (10) is the one that rotationally drags, the nut of the lock, has a cylindrical recess (25) with rotary adjustment with respect to the cylindrical part (14) of the clutch shaft (7) and it has an exterior of square section preferably equal to the of the outer shaft (2) of square, and this tubular shaft (10) has two perforations (26) for two third pins (27) coupled through the side wall of the bowl formed by the clutch body (6).

\hbox{tubular (10).}

The assembly of the assembly is shown by figures 2 and 3, seeing in figure 2, together with figure 1, another feature of the invention consisting in that in the perimeter channel (23) (23) of the sliding ring (9) are tangentially located first elastic rods (29) that are transversely anchored in a bar (28) rotatably mounted that also has a second elastic rod anchored (30) that is perpendicular to the first elastic rods (29) and that is located tangentially in the helical spindle channel (5) of the electric motor (4). In this assembly the inner shaft (1), the clutch body (6), the sliding coupler (8) and the tubular shaft (10) rotate only, the first two because they are the same piece or two pieces tied together, the clutch body (6) and the sliding coupler because they are linked by the second pin (21), and the clutch body (6) and the tubular shaft (10) because they are linked by the third pins (27). For its part, the outer shaft (2) is rotatably coupled with the outer end (15) of a square belonging to the clutch shaft (7) whose cylindrical part (14) is located with rotational adjustment inside the cylindrical bore (25) of the axis

 \ hbox {tubular (10).} 

The operation of this assembly is very simple.  Referring to the disengaged position (figures 2 and 3), it it follows that, when turning the outer axis (2), the axis of  clutch (7) through its outer end (15), but it is not dragged the tubular shaft (10), which would rotate the nut of the lock, because the cylindrical part (14) of the clutch shaft (7) it can rotate freely within this tubular shaft (10); in change, as said before, the action on the inner axis (1) produces the rotation of the tubular shaft (10) and, therefore, the opening of lock, in what constitutes the panic function of the clutch device Referring to the clutch position (Figures 4 and 5), the action on the inner axis (1) follows being as before; instead, now by rotating the outer shaft (2) the rotation of the tubular shaft (10) occurs because the head of clutch (19) conical trunk clutch shaft (7) is coupled with the sliding coupler (8) and through it rotates the clutch body (6) as if acting directly on the shaft interior (1). As for the means of energy accumulation elastic that (in case of misalignment between the coupler Slider (8) and clutch head (19)) produce the sliding ring displacement (9) as soon as the alignment after the electric motor has already operated, the performance of these means can be understood by comparing figures 3 and 5; if in figure 3 there was no alignment due to the clutch coupling, the second rod (30) would pass to the position of figure 5, but the first rods (29) could not move and accumulate an elastic energy that, as soon as it was the alignment recovered, it would produce the operational displacement of the sliding ring (9) and these first rods (29) would pass to occupy the situation shown in figure 5.

Figures 6 to 11 illustrate the constitution and functionality of a particularity of the invention in which, with in relation to its horizontal resting position, the outer handle (3) has an axis hub that has two horizontal sides (31) opposite each other that, by the end to which it extends the outer handle itself (3), are connected by a front curved convex (32), while in relation to the turn of this outer handle (3), at the opposite end of these sides horizontal (31) there is a symmetrical curved convex back (33) that link to the horizontal sides (31) by means of two chamfers (34), one of the horizontal sides (31), preferably the bottom, is leaning against a platform (35) vertically slide that is installed on two preferably springs compression helicals (36) while, relative to each other of these horizontal sides (31), there are a pair of rockers (37) that are symmetrically arranged with respect to the rotation of the outer handle (3) and consisting of some arms, first (38) and second (39), such that, at rest, the first arm (38) remains attached to a respective side wall of the box (40) in which it is mounted the outer handle (3) and, in the case of the rocker (37) located on the side to which the outer handle (3) extends, its second arm (39) has its tip substantially in contact with the top of the horizontal sides (31) at the end of it which converges with the curved convex front (32), and, in the case of the other  rocker (37), its second arm (39) faces the corresponding of the chamfers (34), and whose rocker arms (37) are likely to rotate in the sense that your second arm (39) rotates where the outer handle (3) extends and against the elastic action of a spring (41), and in the rear cover (42) of the box (40), there are horizontal elongated openings (43) that cover the operational rotation path of the second arms (39) of the rocker arms (37); the solution being preferred represented in which the springs (41) antagonists of the rockers (37) are both extreme branches of the same winding installed on a pivot (44) of the box (40) arranged in the center between both rocker arms (37). Figures 6 and 7 show, respectively, the resting and operated positions of the handle exterior (3), whose position is produced by forcing the rest vertical platform (35) against the elastic action of the helical compression springs (36). Real interest of this solution is that illustrated in figures 8 to 10 and that refers to the fact that the outer handle (3) can be reversed without need to be disassembled, which constitutes a facility for the case that does not correspond to the same hand (right or left of the door), allowing reversal on the fly and without Need for special tool. To make the reversal, part of the position of figure 8 and we proceed to swing the rocker (37) located on the left and then the handle outside (3) can be turned counterclockwise (figure 9) until reaching the position of figure 10, for which the curved convex front (32) strikes the second arm (39) of the another rocker (37) and produces its occasional tilt in the direction contrary to the starting rocker (37); to produce the rocker swing (37) starting just insert the tip of a screwdriver, a nail or similar through the elongated opening (43) corresponding to it and existing in the back cover (42) of the box (40); rocker swinging takes place against the antagonistic elastic action of the springs (41).

The rotary cylindrical shaft (45) in its different cylindrical or externally square configurations of dimensions equal to the piece (10) allow free rotation coaxially with respect to the shaft (14) protecting it against use undue exterior.

Claims (5)

1. Clutch device with panic function for electromechanical locks, comprising at least one inner shaft (1) of a square in which an inner handle of knob or handle is installed, an outer shaft (2) of square equipped with an outer handle and an electric motor (4) provided with an output spindle (5) for actuation of the clutch device itself, the interior and exterior designations being taken in relation to the interior and exterior sides of the lock, respectively, characterized in that it comprises a clutch body (6), a clutch shaft (7), a clutch sliding coupler (8), a sliding ring (9) and a tubular shaft (10); wherein, the clutch body (6) is rotatably coupled with the inner shaft (1) of square and is a bowl that has a rotary assembly integral with the inner shaft (1) and that provides a coaxial cavity (11) of section polygonal whose wall externally forms a cylindrical crown (12) which is provided with two windows (13) axially torn and diametrically opposed, the clutch shaft (7) has a cylindrical part (14) delimited between ends, exterior (15) and inner (16), such that, the outer end (15) has a square section that is reciprocal of the axial hollow of an outer shaft (2) of square which is tubular and that has a transverse bore (17) for a first pin ( 18) installed through this outer shaft (2), and the inner end (16) has a clutch head (19) with a truncated pyramid shape, the clutch sliding coupler (8) is pierced by a socket hole (20) for a second pin (21) that with adjustable adjustment It crosses the torn windows (13) of the clutch body (6) and has a recess (22) facing each other and reciprocating the clutch head (19), the sliding ring (9) is provided with a perimeter channel ( 23), has sliding adjustment with respect to the crown (12) of the clutch body (6) and has a pair of holes (24) for the engagement of the second pin (21), the tubular shaft (10) is the one that rotatably drags , the lock nut, has a cylindrical recess (25) with rotational adjustment with respect to the cylindrical part (14) of the clutch shaft (7) and has an exterior of square section preferably equal to that of the outer axis (2) of square, and this tubular shaft (10) has two perforations (26) for two third pins (27) coupled through the side wall of the bowl formed by the clutch body (6). 2. Clutch device with panic function for electromechanical locks, according to the preceding claim, characterized in that, on the perimeter channel (23) of the sliding ring (9), first elastic rods (29) are tangentially located that are transversely anchored in a bar (28) rotatably mounted which also has a second elastic rod anchored (30) that is perpendicular to the first elastic rods (29) and is located tangentially in the helical channel of the spindle (5) of the electric motor (4). 3. Clutch device with panic function for electromechanical locks, according to the preceding claims, characterized in that, in relation to its horizontal resting position, the outer handle (3) has an axle hub having two horizontal sides (31) opposite between yes, by the end towards which the outer handle itself (3) extends, they are joined by a curved convex front (32), while, in relation to the rotation of this outer handle (3), at the opposite end of these horizontal sides (31) there is a symmetrical curved convex back (33) that connects with the horizontal sides (31) by means of two chamfers (34), one of the horizontal sides (31), preferably the lower one, is supported against a platform (35) vertically sliding which is installed on two preferably helical compression springs (36), while, relative to the other of these horizontal sides (31), there is a pair of bal ankines (37) that are arranged symmetrically with respect to the rotation of the outer handle (3) and that consist of arms, first (38) and second (39), such that, at rest, the first arm (38) is attached to a respective side wall of the box (40) in which the outer handle (3) is mounted and, in the case of the rocker (37) located on the side to which the outer handle (3) extends, its second arm ( 39) has its tip substantially in contact with the top of the horizontal sides (31) at the end of the latter that converges with the curved convex front (32), and, in the case of the other rocker (37), its second arm (39 ) faces the corresponding one of the chamfers (34), and whose rocker arms (37) are capable of rotating in the direction in which their second arm (39) turns towards where the outer handle (3) extends and against the action elastic spring (41), and on the back cover (42) of the box (40), there are paths (43) elongated horizontal such that they cover the operational rotation path of the second arms (39) of the rocker arms (37). 4. Clutch device with panic function for electromechanical locks, according to claim 3, characterized in that, the springs (41) antagonists of the rocker arms (37) are both end branches of the same winding installed in a pivot (44) of the box (40) arranged in the center between both rocker arms (37). 5. Clutch device with panic function for electromechanical locks, according to claim 1, characterized in that, the rotary cylindrical shaft (45) in its different cylindrical or externally square configurations of dimensions equal to the part (10) allows free rotation coaxially with respect to to the shaft (14) protected against improper external use.