Patent Publication Number: US-11391058-B2

Title: Actuating handle with blocking device

Description:
The invention relates to an actuating handle for a door according to the preamble of claim  1 . 
     An actuating handle usually comprises at least one escutcheon which is arranged on a door leaf and is designed for the swiveling mounting of a handle such as a door knob. Often such actuating handles are required to be able to block an actuating of the handle by the user of the actuating handle when so needed, for example in order to lock a room. Many possible designs are known for this in the prior art, which either block a movement of the handle or decouple the movement of the handle from a closure mechanism provided in the door. 
     For example, DE 10 2007 030 655 A1 of the applicant describes one such actuating handle for a door, in which an escutcheon is arranged on either side of a door leaf. The escutcheon serves as a mount for a handle, which is connected by means of a square pin to a closure mechanism in the door leaf. In order to block the actuating of the handle and consequently the unlocking of the door when needed, a blocking device is formed between the escutcheons, which blocks a movement of the handle when a blocking element is actuated. The actuating member for the actuating of the blocking device is designed here as a swiveling element, which projects out from the end face of an escutcheon. 
     The design of an actuating handle with a blocking device for the actuating of the handle described in the aforementioned prior art has the drawback that the actuating member of the blocking device stands out by a distance from the end face of the escutcheon, resulting in a relatively large design height and consequently an appearance often perceived as unattractive. A reducing of the design height by a shortening of the actuating member would have the drawback of making it harder to hold the actuating member, making the actuating of the blocking device more difficult. 
     Accordingly, the problem which the present invention proposes to solve is to create an actuating handle with a blocking mechanism which is characterized by a low design height and at the same time is easy to operate.   
     In an actuating handle for a door with an escutcheon and a handle for actuating a locking device arranged in the door, wherein the handle for actuating the locking device is mounted in the escutcheon rotatably about a first axis of rotation, wherein the actuating handle moreover has a blocking device, wherein the blocking device has a release position in which a rotation of the handle about the first axis of rotation is released, and a blocking position in which a rotation of the handle about the first axis of rotation is blocked by the blocking device, wherein the actuating handle moreover has an actuating mechanism for the blocking device, it is provided according to the invention that the actuating mechanism has a sliding element which is displaceable along a circle segment centered around the first axis of rotation, wherein a displacement of the sliding element along the circle segment brings about an actuation of the blocking device. 
     By “actuation of the blocking device” is meant a process in which the blocking device is switched from the release position to the blocking position and vice versa. 
     The above described use of a sliding element which is displaceable along a circle segment centered about the axis of rotation of the handle has the advantage that the sliding element can be designed very flat, so that the overall design height of the escutcheon and especially that of the actuating mechanism of the blocking device can be kept low. At the same time, the use of such a sliding element has the advantage that its actuation is very easy and usually is possible with only one finger, especially in the style of the modern operation of mobile radio devices or tablet computers by swiping movements. On the contrary, the rotatable actuating member described above as the prior art must always be grasped by two fingers in order to guarantee a secure actuating. 
     Moreover, the design of the sliding element in the actuating handle according to the invention also makes it possible to actuate the handle and the sliding element with one hand at the same time and thus actuate the actuating mechanism with one finger of the same hand. Consequently, the handling of the design according to the invention of the actuating mechanism is also easier than in the prior art. 
     A compact construction of the actuating handle according to the invention is achieved in particular according to one embodiment if the sliding element passes through an end face of the escutcheon facing toward the handle in the direction of the first axis of rotation. By the end face is meant that surface which is arranged on the side of the escutcheon facing away from the door leaf and usually facing toward a user of the actuating handle. In this way, the escutcheon of an actuating handle according to the invention can have a very flat configuration, since the entire construction of the actuating mechanism can be recessed in the door leaf behind the escutcheon, and only the sliding element protrudes slightly from the surface of the escutcheon. 
     An actuating of the sliding element of the actuating mechanism is facilitated according to a further embodiment in that a surface of the sliding element protruding from the escutcheon is roughened. In this way, it is enough for a user of the actuating handle to merely place their finger on the sliding element and move the sliding element with slight pressure along the circle segment. The roughened surface of the sliding element will prevent the finger from slipping off the sliding element. 
     The actuating of the sliding element can be further simplified according to a further embodiment in that the escutcheon has a recess in its end face, through which the sliding element passes through the end face and in which the sliding element is guided. The recess preferably delimits the deflection of the sliding element along the circle segment. Consequently, the recess through which the sliding element passes through the end face of the escutcheon at the same time serves as a guide block for the sliding element. Moreover, the actuating mechanism may preferably be designed such that the release position of the blocking device is established on the side of a first end stop of the sliding element against the recess, while the blocking position of the blocking device is established on the side of a second end stop of the sliding element against the recess. This further simplifies the actuating of the sliding element, since for a secure actuating of the sliding element a user of the sliding element only has to move from one end of the recess to the other end of the recess and there is no doubt as to the position of the sliding element in which the release position or the blocking position of the blocking device is achieved. 
     According to a further embodiment, the blocking device comprises at least one first blocking element joined rotationally firmly to the handle and a second rotatably mounted blocking element, wherein a rotation of the second blocking element brings the second blocking element into engagement with the first blocking element such that a rotation of the handle about the first axis of rotation is hindered by the second blocking element. Thanks to this design, a blocking device can be realized with simple means requiring only a rotating of the second blocking element for the actuation, i.e., for a switching from a release position to a blocking position or vice versa. 
     In order to achieve a rotationally firm connection of the first blocking element to the handle of the actuating handle, the first blocking element may for example be shoved rotationally firmly onto a polygonal pin connected to the handle, which is provided for a coupling of the handle to a closure mechanism configured in a door leaf. The first blocking element may have a recess, for example, with which the second blocking element engages as soon as it has been moved into the blocking position. 
     According to a further embodiment it is provided that the actuating handle comprises two escutcheons, which are arranged on opposite sides of a door, wherein the actuating mechanism for the blocking device is arranged on a first escutcheon and wherein the blocking device is arranged between the first escutcheon and a second escutcheon. Consequently, the overall construction of the blocking device can be arranged on both sides of a door, which on the whole makes possible a relatively flat construction of the blocking device and hence that of the actuating handle. In particular, it may be provided that the blocking device is arranged on the second escutcheon. 
     According to a preferred embodiment, the actuating mechanism comprises a rotary slide and at least one pinion. The rotary slide is mounted on the escutcheon rotatably about the first axis of rotation and carries or comprises the sliding element. The pinion is mounted on the escutcheon rotatably about a second axis of rotation. The rotary slide stands in an operative connection with the pinion such that a rotation of the rotary slide about the first axis of rotation brings about an actuating of the blocking device from the release position to the blocking position and/or vice versa. Consequently, basically only two elements are needed for the design of the actuating mechanism of the blocking device, which can be arranged in space-saving manner beneath an escutcheon. This further contributes to a low design height of the actuating handle. 
     Preferably, the rotary slide is connected to the pinion such that a rotation of the rotary slide about the first axis of rotation brings about a rotation of the pinion about the second axis of rotation. The rotary slide is preferably a flat element, such as a metal plate, which lies flat against the back side of the escutcheon, so that a low design height results for the actuating mechanism. 
     According to a preferred embodiment, it is further provided that the maximum extension of the rotary slide is smaller in the radial direction of the first axis of rotation than the minimum extension of the first escutcheon. Consequently, the rotary slide never protrudes beyond the first escutcheon in the radial direction, regardless of its rotary position. Hence, the first escutcheon can be arranged completely flush with the surface of a door leaf, since no elements of the actuating device protrude in the radial direction beyond the first escutcheon. 
     The connection of the rotary slide to the pinion is preferably realized according to a further embodiment in that the rotary slide comprises a toothed segment on its circumference, which meshes with the pinion. For example, the rotary slide as already mentioned above can be a flat metal plate, in which teeth are provided in one region of the circumference, preferably designed in the shape of a circle segment, being matched in shape to the teeth of the pinion. 
     According to a preferred embodiment, the toothed segment is arranged on the rotary slide diagonally opposite the sliding element with respect to the first axis of rotation. In this way, a large lever can be realized between the sliding element and the toothed segment of the sliding element, which makes easier an actuating of the sliding element and hence an actuating of the blocking device. The circle segment of the sliding element in which the toothed segment is formed is preferably likewise centered about the first axis of rotation, so that a secure engaging of the teeth of the toothed segment with the teeth of the pinion can be assured. 
     Moreover, the actuating of the sliding element according to another embodiment can be simplified in that the size of the pinion and the toothed segments are attuned to each other such that a rotation of the rotary slide by 15° to 25°, preferably 20°, about the first axis of rotation brings about a rotation of the pinion by 90° about the second axis of rotation. In this way, a rotation of the pinion and hence a rotation of the second blocking element can be accomplished already with a slight displacement travel of the sliding element, which is enough to switch the blocking element between the release position and the blocking position. This further facilitates the handling of the sliding element, since only a slight effort is needed to actuate the sliding element. 
     The transmitting of the rotation of the pinion to the second blocking element preferably occurs, according to a further embodiment, in that the pinion and the blocking device are joined together rotationally firmly by a shaft. Preferably, the blocking element of the blocking device is mounted on the shaft. It is further provided according to another embodiment that the pinion is arranged on a first bushing and the second blocking element on a second bushing, wherein the shaft engages with the first and second bushing and is mounted floating in the first and second bushing. The floating mounting of the shaft in the bushings has the advantage that the distance between pinion and second blocking element can be chosen to be variable, yet even so a secure coupling of the pinion with the second blocking element is achieved. In particular, in one embodiment, in which the second blocking element is arranged on a first escutcheon and the pinion on a second escutcheon, the actuating handle can thus be adapted to different thicknesses of a door on which the actuating handle is to be mounted. The pinion or the second blocking element can either be mounted or fastened on the respective bushings, or be designed as a single piece with the corresponding bushings. In particular, a single-piece design of the pinion/second blocking element with the corresponding bushing has the advantage that a good stability of the actuating mechanism is achieved in general. 
     Preferably the shaft here is a polygonal pin, especially a square pin. 
     In order to make possible an unlocking of the blocking device even without actuating the sliding element, it is provided according to a further embodiment that the second bushing passes through the second escutcheon along the second axis of rotation and has a receptacle for a tool. By a tool receptacle is meant a receptacle for a screwdriver with plain slot, Phillips head, or hexagon. Thus, by inserting a corresponding tool, a rotation of the second blocking element can be accomplished, so that the blocking device can be unlocked. Preferably the tool receptacle is arranged in an escutcheon in which the sliding element is also not arranged at the same time. Thus, for example, a door locked on the inside can be opened from the other side of the door, for example in the case when a person has unintentionally become locked in. 
     In order to further simplify the actuating of the sliding element by a user of the actuating handle, it is provided according to a further embodiment that the first escutcheon comprises a guide ring on its back side, on which the rotary slide is rotatably mounted. The guide ring here preferably forms a latching device with the rotary slide, which presents an increased resistance to a rotation of the rotary slide in at least two rotary positions of the rotary slide. In this way, a user is given sensory feedback upon actuating the sliding element when the sliding element has moved the blocking device into the release position, or into the blocking position. 
     The latching device according to a further embodiment is designed such that the actuating mechanism comprises a lock ring, which is arranged rotationally firmly on the guide ring, wherein the rotary slide is arranged rotatably on the lock ring. The lock ring has at least one locking lug, which engages with corresponding mating recesses of the rotary slide at the at least two rotary positions of the rotary slide. For example, the lock ring may simply be mounted on the guide ring, with the lock ring engaging in corresponding recesses of the guide ring or vice versa. It may also be provided that the locking lug is arranged in the rotary slide and the mating recesses are formed in the lock ring. 
     Moreover, it can be provided according to a further embodiment that the actuating mechanism comprises a mounting element which is fastened to the first escutcheon and fixes the rotary slide in the axial direction of the first axis of rotation on the guide ring. In this way, no separate fixation of the rotary slide on the guide ring is necessary. Moreover, with the use of a mounting element the entire construction of rotary slide, lock ring and guide ring can be fixed in its position such that no further fastening means are required. This further simplifies the overall construction of the actuating mechanism. The rotary slide is arranged preferably as a flat element, such as a metal plate, between the mounting element and the first escutcheon. 
     Preferably the mounting element according to a further embodiment is secured on the first escutcheon by means of at least two fastening bushings, wherein the fastening bushings each have at least one flange. The mounting element is then held by force locking of the mounted fastening bushings between the flanges and the first escutcheon. According to a further embodiment, it is provided that the fastening bushings are designed so as to engage with mating elements of the second escutcheon, and the engagement produces a floating mounting. Consequently, the fastening bushings according to the above described embodiment play a dual role. On the one hand, the fastening bushings serve to secure the mounting element on the first escutcheon and consequently to fasten the overall actuating mechanism to the first escutcheon. On the other hand, the fastening bushings serve at the same time for a floating mounting of the first escutcheon on the second escutcheon, so that the spacing between escutcheons arranged on different sides of a door leaf can be adapted to the thickness of the door leaf. 
    
    
     
       Further features, details and benefits of the invention will emerge from the wording of the claims as well as the following description of exemplary embodiments with the aid of the drawings. There are shown: 
         FIG. 1  a perspective view of an actuating handle, 
         FIG. 2  a perspective view of a blocking device arranged between the escutcheons, 
         FIG. 3  a perspective view of an alternative arrangement of the blocking device between the escutcheons, 
         FIG. 4  an exploded view of the actuating mechanism, 
         FIG. 5  an exploded view of the same actuating mechanism from a different viewing direction, 
         FIG. 6  a schematic view of an actuating mechanism arranged on an escutcheon, 
         FIG. 7  a further view of  FIG. 6  with a mounting element, 
         FIG. 8  a sectional view of a top view of an actuating mechanism arranged on an escutcheon, and 
         FIG. 9  a further sectional view of an actuating handle. 
     
    
    
     In the following, similar or identical features shall be given the same reference numbers. 
       FIG. 1  shows a perspective view of an actuating handle  100  with two handles  102 , two escutcheons  104 ,  104 ′ and a recognizably indicated blocking device  106 . The actuating handle  100  shown may be arranged for example on a door leaf. For this, at first the escutcheons  104 ,  104 ′ are arranged on both sides of a door leaf, and the blocking device  106  is arranged between the escutcheons  104 ,  104 ′. After this, the handles  102  are secured to the escutcheons  104 ,  104 ′. For this, a polygonal pin for example is passed through corresponding recesses of the escutcheons  104 ,  104 ′ and a mortise lock (not shown) arranged in the door leaf. Then the handles  102  are fastened rotationally firmly to the polygonal pin. By actuating the handles  102 , it is then possible to actuate the mortise lock, so that a bolt of the mortise lock is pulled out from a corresponding door latch and the door can be opened. In the example shown in  FIG. 1 , the escutcheons  104 ,  104 ′ are disk-shaped escutcheons in which the handles  102  are mounted centrally. 
     For such actuating mechanisms of actuating handles there is often provided a mechanism which blocks an actuation of the handle  102  when need be, so that an opening of the door on which the handle  102  is arranged is no longer possible. This is realized in the actuating handle  100  according to the invention in that the blocking device  106  hinders the polygonal pin on which the handles  102  are fastened from rotating about its longitudinal axis. The switching between this position, hereafter called the “blocking position”, and a position in which the handles  102  can be actuated, hereafter called the “release position”, occurs in the actuating handle  100  according to the invention by a user actuating the sliding element  108 . The sliding element  108  is an element preferably roughened on its surface, sticking out from one end face  156  of a first escutcheon  104 . The sliding element  108  is preferably dimensioned such that only a few millimeters stick out beyond the end face  156 , such as 1 to 5 mm. 
     The sliding element  108  is mounted in the first escutcheon  104  such that it can be displaced along a circle segment centered about the axis of rotation of the handle  102  or a square pin connected to the handle. For this, the first escutcheon  104  moreover has a recess  110 , in which the sliding element  108  is guided. By a deflecting of the sliding element  108  inside the recess  110 , a switching is then possible between the blocking position and the release position of the blocking device  106 . As is moreover evident from  FIG. 1 , the recess  110  allows a displacement of the sliding element  108  along the circle segment in an angle range of around 20°. In the embodiment shown, the recess  110  acts at the same time as an end stop for the sliding element  108  and thereby limits a possible displacement of the sliding element  108  along the circle segment. Preferably, the end positions of the sliding element  108  in the recess correspond to the release and blocking positions. 
       FIG. 2  shows a perspective view of the internal design of the actuating handle  100 . The handles  102  represented in  FIG. 1  are not shown here, for reasons of clarity. As can be seen readily in  FIG. 2 , the blocking device  106  and an actuating mechanism  112  for the blocking device  106  are formed between the escutcheons  104  and  104 ′. The actuating mechanism  112  is substantially arranged on the first escutcheon  104  depicted on the right side, while the blocking device  106  is formed in a closure tablet  114  on the opposite side on the second escutcheon  104 ′ depicted at the left side. The blocking device  106  formed in the closure tablet  114  is a mechanism which can be switched by a corresponding actuation between a blocking position and a release position, as was described above. The precise functioning of the blocking device  106  will not be discussed at this time. Instead, as an example of this, refer to the above cited other application of the applicant, in which the functioning of such a closure tablet  114  has already been described. 
     Moreover, in  FIG. 2  it is readily apparent that the second escutcheon  104 ′ is connected by corresponding connecting means to the first escutcheon  104 . The connecting means are, on the one hand, fastening bushings  116 , which are arranged at the side next to a recess  118 , in which a handle  102  can be mounted in the first escutcheon  104 . These fastening bushings  116  engage with mating elements which are arranged on the opposite second escutcheon  104 ′. The mating elements are mounted floating in the fastening bushings  116 , so that the distance between the first escutcheon  104  and the second escutcheon  104  is adjustable in flexible manner. Moreover, beneath the recess  118  there is formed another connection between the escutcheons  104 ,  104 ′, which shall be further discussed below. 
       FIG. 3  shows the same cutout feature as  FIG. 2 , but in this instance the closure tablet  114  like the actuating mechanism  112  is arranged on the first escutcheon  104 . The question of which escutcheon  104 ,  104 ′ should be used to arrange the closure tablet  114  depends in most instances on the layout of the mortise lock as well as the corresponding recesses in the door leaf. In theory, the closure tablet  114  can be arranged in any desired position between the two escutcheons  104  and  104 ′ by an appropriate configuration of the actuating mechanism  112 . In this way, the described actuating handle  100  can be adapted in flexible manner to the prevailing conditions of the installation. 
       FIGS. 2 and 3  moreover reveal that a receptacle  120  for a tool is provided in the second escutcheon  104 ′ arranged on the left side, being in this instance a slotted screwdriver. This is located beneath the recess  118  for a handle  102 . By inserting a tool into the receptacle  120  and rotating the receptacle  120 , the closure tablet  114  can be moved from a blocking position to a release position or vice versa, without having to actuate the actuating mechanism  112  by means of the sliding element  108 . Thus, an unlocking of a door can also be done when the sliding element  108  is not accessible to a user. This may be helpful, for example, if a person is unintentionally locked in by actuating the sliding element  108  and then is no longer able to unlock the door. The precise functioning or interacting of the closure tablet  114  with the receptacle  120  or the actuating mechanism  112  shall now be discussed. 
     For this,  FIG. 4  shows an exploded view of the actuating mechanism  112  with an escutcheon  104 , on which the actuating mechanism  112  can be arranged. Basically, the actuating mechanism  112  consists of a flat rotary slide  122 , a lock ring  124 , a pinion  126  and a guide ring  128 , which is arranged around the recess  118  on the back side  158  of the escutcheon  104 . Moreover, the exploded view of  FIG. 4  shows a mounting element  130 , two fastening bushings  116  and a shaft  132  configured as a square pin. 
     The escutcheon  104  here has the recess  110  provided for the guiding of the sliding element  108  in its upper area. The recess  110  is configured as a circle segment, which is centered around the center of the recess  118  and hence around the later axis of rotation of the installed handle  102 . To the side of the recess  118  of the escutcheon  104  there are formed moreover two pins  144 , whose function shall be explained later on. The pins  144  may be threaded pins, for example. 
     The rotary slide  122  is configured as a substantially flat plate, in the center of which an approximately round circular recess  134  is formed, which is larger in its diameter than the recess  118  of the escutcheon  104 . In the assembled condition of the actuating mechanism  112 , the rotary slide lies with its back side against the back side  158  of the escutcheon  104 . Above the recess  134  on the back side of the rotary slide  122  there is provided the sliding element  108 , which is preferably designed as a single piece with the rotary slide  122 . The sliding element  108  is particularly well seen in  FIG. 5 , where the exploded view of  FIG. 4  is shown from the opposite direction. On the diagonally opposite end of the rotary slide  122  there is formed moreover a toothed segment  136 , which is arranged on a circle segment being centered about the center of the recess  134 . The toothed segment  136  is designed to engage with a corresponding toothing of the pinion  126 . In this way, a rotation of the sliding element  122  about the center of the recess  134  is transmitted to the pinion  126 , which then rotates about a second axis of rotation, corresponding to the longitudinal axis of the pinion  126 . 
     The recess  134  of the rotary slide  122  has at its upper circumference two recesses in the form of notches  138 . These are designed to form with the lock ring  124  a latching device, which presents an increased resistance to a rotation of the rotary slide  122  for defined positions of the rotary slide  122  relative to the lock ring  124 . For this, a locking lug  140  is provided on the lock ring  124 , which can engage with the notches  138 . At the same time, the lock ring  124  serves as a rotary bearing for the rotary slide  122 . For this, the lock ring  124  may be secured rotationally firmly to the guide ring  128 . For this purpose, the guide ring  128  has fastening lugs on its circumference, which engage with corresponding recesses of the lock ring  124  when it is mounted on the guide ring  128 . 
     For the assembly of the actuating mechanism  112 , basically at first the lock ring  124  is mounted on the guide ring  128  and then the rotary slide  122  is mounted on the lock ring  124 . The centers of the respective recesses of the elements line up in this process and all of them lie on a common first axis of rotation, which at the same time corresponds to the axis of rotation about which the one handle  102  mounted in the escutcheon  104  can rotate. 
     For the fastening of the rotary slide  122  on the lock ring  124 , the mounting element  130  is further provided. This is substantially a flat metal sheet with two curved wings  160  arranged at the sides, having a total of four recesses. A first central recess  142  is arranged centrally between the wings  160  such that their midpoint, after being assembled, coincides with the first axis of rotation. Moreover, notches are provided at the sides of the first recess  142 , which can engage with corresponding mating elements of the guide ring  124 , so that the guide ring  124  can no longer rotate relative to the mounting element  130  once the mounting element  130  is brought into engagement with the guide ring  124 . 
     Beneath the recess  142  there is provided a further recess  146 , which serves to receive and support the pinion  126 . Moreover, at the side of the recess  142  there are provided further recesses  162  in the wings  160 , which serve for the fastening of the mounting element  130  on the escutcheon  104 , as will be further explained below. 
       FIG. 6  shows the result of a first partial step in the assembly of the actuating mechanism  112 . Here, first of all the lock ring  124  was mounted on the guide ring  128 . Next, the rotary slide  122  was mounted on the lock ring  140  and the pinion  126  was arranged beneath the rotary slide  122  such that the toothed segment  136  engages with the toothing of the pinion  126 , i.e., meshes with it. In the condition of the assembly process shown in  FIG. 7 , moreover the mounting element  130  has been mounted on the lock ring  124 , so that a rotation of the lock ring  124  is blocked by the corresponding recesses in the recess  142  of the mounting element  130 . Moreover, the fastening bushings  116  have been placed on the pins  144  passing through the side recesses  162  and through the mounting element  130 , so that the mounting element  130  is secured on the escutcheon  104 . 
     In this condition, the rotary slide  122  can no longer be displaced along the first axis of rotation, but only rotated about this first axis of rotation. Upon rotating the rotary slide  122  about the first axis of rotation, because of the toothed segment  136 , the rotation of the rotary slide  122  is transmitted to the pinion  126 , which in this way rotates about a second axis of rotation. The pinion is led here through the recess  146  of the mounting element  130 . The rotating of the pinion  126  about the second axis of rotation is transmitted by means of the square pin  132  to the blocking mechanism of the closure tablet  114 . This shall be further explained below with reference to  FIG. 9 . The distance between the first axis of rotation and the second axis of rotation can be for example 21.5 mm. 
       FIG. 8  shows yet again a top view of the object of  FIG. 7 , showing moreover a cross section through the fastening bushings  116 . It can be seen that the fastening bushings are mounted on the pins  144  and thus fixed at the escutcheon. Moreover, an encircling flange  148  is formed on the fastening bushings  116  near the escutcheon  104 . The mounting element  130  is clamped between this flange  148  and the escutcheon  104  when the fastening bushings  116  are mounted on the pins  144 . The mounting element  130  rests only with the curved wings  160  against the back side  158  of the escutcheon  104 . Thanks to the S-shape curved form of the wings, a space is formed between the escutcheon  104  and the mounting element  130 , in which the rotary slide  122  is arranged. 
     The fastening bushings  116 , as already mentioned above, are designed here at the same time for mounting a mating element of an oppositely situated escutcheon  104 . Consequently, the fastening bushings  116  play a dual role, since on the one hand they serve for securing the mounting plate  130  at the escutcheon  104  and on the other hand produce a connection of a first escutcheon  104  to an oppositely situated escutcheon  104 . 
     This dual role is well seen in  FIG. 9 , where the overall construction that was previously discussed is once more represented in a lateral cross section view. It can clearly be seen that the actuating mechanism  112  and especially the fastening bushings  116  as well as the pinion  126  are arranged at the right-hand first escutcheon  104 . Both the fastening bushings  116  and the pinion  126  are designed to receive a connection element. For this, the pinion  126  is formed on a first bushing  150 , which has a receiving space for a connection element  132 . The connection element is the square pin  132 , which is mounted floating in the bushing of the pinion  126 . On the oppositely situated second escutcheon  104 ′ there is arranged a mating second bushing  152 , with which the square pin  132  likewise engages. The second bushing  152  is connected to the closure tablet  114  such that a rotation of the second bushing  152  brings about an actuating of the blocking mechanism formed in the closure tablet  114 . Moreover, the receptacle  120  for a tool is formed at the left side of the second bushing  152  and connected rotationally firmly to this bushing. The second receiving element  104 ′ passes through the receptacle  120 , so that the blocking mechanism can be actuated from this side. 
     Moreover, connecting pins  154  are arranged on the second escutcheon  104 ′, which engage with the fastening bushings  116  and thus establish the relative position of the second escutcheon  104 ′ to the first escutcheon  104 . The escutcheons  104 ,  104 ′ can be displaced relative to each other along the first axis of rotation, making possible an adapting of the actuating handle  100  to the thickness of a door or a door leaf. 
     The above described design of the actuating handle  100  makes it possible to arrange the entire mechanism of the blocking device in a door leaf, so that the escutcheons  104 ,  104 ′ can terminate smoothly with the surface of a door leaf. Only the sliding element  108  for actuating the blocking device  106 , besides the handles  102  themselves, protrudes out from the first escutcheon  104 . Thus, an overall very compact appearance results, since only a few elements protrude from the door leaf. 
     The invention is not confined to one of the above described embodiments, but instead can be modified in diverse ways. However, it will be evident that an actuating handle  100  for a door contains an escutcheon  104  and a handle  102  for actuating a locking device arranged in the door. The handle  102  for actuating the locking device is mounted in the escutcheon  104  rotatably about a first axis of rotation. The actuating handle  100  moreover has a blocking device  106 , having a release position in which a rotation of the handle  102  about the first axis of rotation is released, and a blocking position, in which a rotation of the handle  102  about the first axis of rotation is blocked by the blocking device  106 . The actuating handle  100  moreover has an actuating mechanism  112  for the blocking device  106 . According to the invention, it is proposed that the actuating mechanism  112  has a sliding element  108  which is displaceable along a circle segment centered around the first axis of rotation, wherein a displacement of the sliding element  108  along the circle segment brings about an actuation of the blocking device  106   
     For example, the sliding element  108  may also be arranged at the side or underneath the recess  118  to receive the handles  102 . Moreover, the invention is not necessarily reliant on the described force transmission between the rotary slide  122  and the pinion  126  by means of a gear mechanism. Instead, other transmission options are also perfectly conceivable. The described specific design of the latching mechanism can also be modified so that the locking lug is arranged on the rotary slide  122 , while the mating recesses are provided in the lock ring  124 . 
     All features and advantages emerging from the claims, the specification, and the drawing, including structural details, spatial arrangements, and method steps, may be significant to the invention both in themselves and also in the most varied combinations. 
     
       
         
           
               
             
               
                   
               
               
                 List of reference numbers 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 100 
                 Actuating handle 
                 112 
                 Actuating mechanism 
               
               
                   
                 102 
                 Handle 
                 114 
                 Closure tablet 
               
               
                   
                 104 
                 First escutcheon 
                 116 
                 Fastening bushing 
               
               
                   
                 104′ 
                 Second escutcheon 
                 118 
                 Recess 
               
               
                   
                 160 
                 Blocking device 
                 120 
                 Receptacle 
               
               
                   
                 108 
                 Sliding element 
                 122 
                 Rotary slide 
               
               
                   
                 110 
                 Recess 
                 124 
                 Lock ring 
               
               
                   
                 126 
                 Pinion 
                 146 
                 Recess 
               
               
                   
                 128 
                 Guide ring 
                 148 
                 Flange 
               
               
                   
                 130 
                 Element 
                 150 
                 First bushing 
               
               
                   
                 132 
                 Shaft/Square pin 
                 152 
                 Second bushing 
               
               
                   
                 134 
                 Recess 
                 154 
                 Connecting pin 
               
               
                   
                 136 
                 Toothed segment 
                 156 
                 End face 
               
               
                   
                 138 
                 Recess/Notch 
                 158 
                 Backside 
               
               
                   
                 140 
                 Locking lug 
                 160 
                 Wing 
               
               
                   
                 142 
                 Recess 
                 162 
                 Recess 
               
               
                   
                 144 
                 Pin