Door fitting having a handle which can be locked on one side

Abstract

A door fitting having a handle that can be locked on one side, including at least one rosette for contact with a door leaf and a shaft element for forming an operative connection to the locking mechanism of a lock unit fitted into the door leaf, and an adapter element being fitted in a neck section of the handle and being held on the shaft element. In order to create a simple embodiment of a handle that can be locked on one side, according to the invention, it is provided that a locking device is held in or on the neck section of the handle, which is brought by means of a manual actuation into a blocking position, in which the handle can be rotationally blocked against the rosette by means of the locking device.

Claims

1. A door fitting having a handle that can be locked on one side, comprising at least one rosette for contact with a door leaf and a shaft element for forming an operative connection to a locking mechanism of a lock unit fitted into the door leaf, and an adapter element fitted in a neck section of the handle and being held on the shaft element, wherein the door fitting further comprises: a locking device held in or on the neck section of the handle, which is brought, by manual actuation, into a blocking position, in which the handle is rotationally blocked against the at least one rosette by the locking device, whereby through the shaft element, an oblong emergency release element is guided, which extends from the handle to an opposite handle; and wherein a rotational movement is introduced into the oblong emergency release element from a side of the opposite handle, and wherein the oblong emergency release element interacts with the locking device in such a way that a rotational movement of the oblong emergency release element guides the locking device out of the blocking position in the rosette.

2. The door fitting according to claim 1, wherein the locking device is formed by a slide element which is movably held in or on the adapter element.

3. The door fitting according to claim 2, wherein the slide element is moveably guided in or on the adapter element parallel to a longitudinal axis of the shaft element in order to move the slide element manually into and out of the blocking position.

4. The door fitting according claim 3, wherein the adapter element has a guide groove in which the locking device is guided at the longitudinal axis.

5. The door fitting according to claim 4, wherein the guide groove is formed into a closed guide channel by the neck section and the locking device is held and guided within the guide groove.

6. The door fitting according to claim 1, wherein the rosette has a recess, into which a blocking section of the locking device is deposited in the blocking position.

7. The door fitting according to claim 1, wherein the neck section comprises an opening, through which an operating element is guided, via which the locking device can be manually moved.

8. The door fitting according to claim 1, further comprising: a screw element connected to the emergency release element and the screw element comprises at least one worm gear, on which a projection of the locking device is guided along in such a way that the locking device is moved along a longitudinal axis out of the blocking position with a rotational movement introduced into the screw element by the oblong emergency release element.

9. The door fitting according to claim 1, further comprising: an entrainment element, which is shear-connected to the tappet and the entrainment element comprises a formation connected to a projection of the locking device in a positive-locking manner in such a way that with a thrust movement introduced into the entrainment element using the tappet at a longitudinal axis, the locking device is moved out of the blocking position.

10. The door fitting according to claim 1, wherein the oblong emergency release element comprises a signal surface, wherein the opposite handle is formed with an opening in such a way that in the blocking position of the locking device the signal surface is visible through the opening and indicates a locking.

11. The door fitting according to claim 1, whereby in the neck section of the handle, a magnetic element is held, which magnetically pulls the locking device into the blocking position and/or secures it and that magnetically pulls the locking device into a release position and/or secures it.

12. The door fitting according to claim 11, wherein the magnetic element acts with a first contact surface of the locking device to pull it into the release position and/or secure it and wherein the magnetic element interacts with a second contact surface of the locking device to pull it into the blocking position and/or secure it.

13. A door fitting having a handle that can be locked on one side, comprising at least one rosette for contact with a door leaf and a shaft element for forming an operative connection to a locking mechanism of a lock unit fitted into the door leaf, and an adapter element fitted in a neck section of the handle and being held on the shaft element, wherein the door fitting further comprises: a locking device held m or on the neck section of the handle, which is brought, by manual actuation, into a blocking position, in which the handle is rotationally blocked against the at least one rosette by the locking device, whereby through the shaft element, an oblong emergency release element is guided, which extends from the handle to an opposite handle; and wherein the oblong emergency release element is formed as a tappet, into which a thrust movement is introduced from a side of the opposite handle, and wherein the oblong emergency release element interacts with the locking device in such a way that a thrust movement of the oblong emergency release element guides the locking device out of the blocking position in the rosette.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further measures to enhance the invention are presented below together with the description of a preferred exemplary embodiment of the invention on the basis of the figures.

(2) The Figures Show:

(3) FIG. 1 a perspective view of a door fitting with a handle that can be locked on one side and a locking device for manual locking of the handle;

(4) FIG. 2 a detailed view of an adapter element of the lockable handle in which the locking device is held;

(5) FIG. 3 a detailed view of the adapter element and the rosette on which the adapter element can be rotated;

(6) FIG. 4 a cross-sectional overall view through the door fitting in accordance with FIG. 1;

(7) FIG. 5 a detailed view of a screw element in arrangement in the adapter element in a basic position;

(8) FIG. 6 a view of the screw element in accordance with FIG. 5 in an activated position for the transfer of the slide element from a blocking position to a release position,

(9) FIG. 7 a cross-cut overall view of a door fitting a blocking position with an alternative emergency release; and

(10) FIG. 8 a cross-sectional overall view of the door fitting in accordance with FIG. 7 with the alternative emergency release in release position.

DETAILED DESCRIPTION OF THE INVENTION

(11) FIG. 1 represents in a perspective view a door fitting 1 with a handle that can be locked on one side 10 according to the invention. In a basically known way, the door fitting 1 comprises two handles 10, and one handle 10 can, with reference to a door leaf (not shown), be located on an inner side, and one handle 10 can be located on an outside of a room. The handle 10 that can be locked can be located on the inside of the door.

(12) The door 1 furthermore comprises rosettes 11, which are designed for contact with the door leaf and a shaft element 12 is shown, which extends between the two handles 10 and passes through the locking mechanism of a lock case, which can be inserted into the door leaf. The handles 10 comprise neck sections 14, and in the neck sections 14 are adapter elements 13, in particular, for connecting the handles 10 to the shaft element 12 in a rotationally rigid manner.

(13) For this purpose, the shaft element 12 with its ends extends in sections into a respective inner passage of the adapter elements 13, and the neck section 14 of the handles 10 is applied externally on the adapter element 13 in a rotationally rigid manner.

(14) The neck section 14 of the handle 10 that is lockable is shown in a broken-up manner so that the adapter element 13 is visible in the neck section 14. A locking device 15 is held in the adapter element 13, and for actuating the locking device 15, this has an operating element 22 for manual operation, which extends through an opening 21 in the neck section 14.

(15) If the locking device 15 is moved by manual actuation of the operating element 22 in the direction of the rosette 11, then the locking device 15 engages with the rosette 11 in a positive-locking manner, and since the locking device 15 is held in the adapter element 13 in a positive-locking manner, and since the handle 10 is held on the adapter element 13 in a rotationally rigid manner, a mobility of the handle 10 can be blocked by a longitudinal axis 17. In the locking state, both handles are blocked 10 since these are connected to each other via the shaft element 12. The locking of the handles 10 can however be triggered only by one side of the two handles 10, wherein the handle 10 that comprises the locking device 15 and thus also comprises the operating element 22, for example, is attached on an inner side of a room, for example, a toilet room or a meeting room, etc. IF the handles 10 are to be released again, the locking device 15 must be moved away from the rosette 11 via the operating element 22 in such a way that this is disengaged from the rosette 11. On the handle 10 that is not designed with the locking device 15, the tool holder element 31 for the emergency release of the locked handle 10 is located on the back side of the neck section 14.

(16) FIG. 2 shows a more detailed view of the adapter element 13, in which the locking device 15 is included, which is formed as a slide element 16. The operating element 22 is mounted on the top side of the slide element 16 as part of the locking device 15, which is designed as a cylinder pin. The slide element 16 is inserted into a guide groove of the adapter element 13 in such a way that this can be shifted axially at the longitudinal axis 17. For the positive-locking engagement of the slide element 16 into the rosette 11, this comprises a blocking section 19 that can be inserted into a recess 18 in the rosette 11.

(17) FIG. 3 shows another perspective view of the rosette 11 and the adapter element 13, and the recess 18 in the rosette 11 is inserted corresponding to the guide groove 20 in the adapter element 13. If, in accordance with FIG. 2, the slide element 16 is pushed forward in the direction of the rosette 11, then the blocking section 19 enters into the recess 18 of the rosette 11 and blocks a twisting motion of the adapter element 13 and thus also the handle 10 relative to the rosette 11, which is rigidly attached to a door leaf in the built state of the door fitting 1.

(18) In accordance with the exemplary embodiment, the rosette 11 comprises a reinforcement element 32 and a covering element 34, wherein the recess 18 is inserted in such a way into the reinforcement element 32 made of a thicker metal sheet that also weak levels of torque force manually introduced into the adapter element 13 do not result in damage to the recess 18, and wherein the cover element 34 can comprise a thinner material, in particular, being made of metallic or also a non-metallic material.

(19) FIG. 4 shows a cross-section through the door fitting 1 with the two handles 10 and the two rosettes 11. The adapter elements 13 are inserted in the neck sections 14 of the handles 10, and the slide element 16, which forms the locking element 15, is held in the left adapter element 13. The cross-section shows the slide element 16 with the operating element 22, which extends through the opening 21 in the neck section 14 for manual operation.

(20) An emergency release element 23 extends through the shaft element 12, which emergency release element 23 is connected on the side of the arrangement of the locking device 15 with a screw element 24 in a rotationally rigid manner. Thus, one end of the oblong emergency release element 23 arranged on the screw element 24 and the opposite end of the emergency release element 23 is connected to a tool holder element for emergency releasing.

(21) If the door fitting 1 is to be not emergency-released in a blocking position, a rotational movement can be introduced into the emergency release element 23 on the side of the right handle 10 with a tool via the tool holder element 31, whereby a rotational movement in the screw element 24 is also generated. A projection 26 on the locking device 15 is moved away by a screw channel 25 of the screw element 24 at the longitudinal axis 17 away from the rosette 11, whereby the locking device 15 can be disengaged from the rosette 11.

(22) On the back to the screw element 24, a magnetic element 27 is inserted into the adapter element 13, which magnetic element 27 can interact with a first contact surface 28 and an opposite contact surface 29 magnetically, which contact surfaces 28 and 29 at the projection 26 and at a rear projection 30 are formed opposite each other.

(23) The illustration shows the locking element 15 in the blocking position by a front blocking section 19 of the locking device 15 engaging into the rosette 11 in a positive locking manner. In this position shown, the second contact surface 29 at the rear projection 30 comes into contact with the magnetic element 27 in such a way that the locking device 15 is held in the blocking position and snaps into this. If the locking device 15 is pulled back out of the rosette 11 by operating it manually, the contact of the magnetic element 27 with the second contact surface 29 is released and the first contact surface 28 is attracted by the magnetic element 27, which is attached to the projection 26. In this release position, the locking device 15 is also held and snapped via the magnetic element 27. Via the magnetic element 27, with the respective magnetic snapping, a haptic for operating the locking device 15 is generated in such a way that a detest position for an operator can be felt at each axial end position of the locking device 15 along the longitudinal axis 17.

(24) FIG. 5 shows a perspective view of the adapter element 13 with the locking device 15 in the form of the slide element 16 in a blocking position. Furthermore, the cross-sectional view shows the screw element 24 with the screw channel 25. In this case it can be recognized in the view that the projection 26 with a flank at the screw channel 25 of the screw element 24 is attached. The axial position of the slide element 16 is shown in the direction of the rosette (not shown) in such a way that the locking device 15 is located in the blocking position. The screw element 24 is pre-tensioned with a spring element 333 in a resting position, so that this rotary preload also results for the emergency release element. If the emergency release is to be activated, the screw element 24 is rotated accordingly against the force of the spring element 33, as is further shown in FIG. 6.

(25) FIG. 6 shows the view of the adapter element 13 with the locking device 15 in a now unlocked position, wherein the screw element 24 has been twisted, and wherein the twisting against the force of the spring element 33 has occurred. Due to the fact that the projection 26 (see FIG. 5) could slip on the screw channel 25, the locking device 15 has been moved away From the rosette in the arrow direction shown in such a way that the twisting of the screw element 24 transfers the locking device 15 from the blocking position into the release position. If the twisting movement via the emergency release element 23 is not held any further, the spring element 33 returns the rotational movement of the screw element 24.

(26) Due to the tact that the projection on the locking device 15 only rests on one side on the screw channel 25 of the screw element 24, due to the return of the rotational movement of the screw element 24 via the spring element 33 into the resting position shown in FIG. 5, the locking device 15 is not transferred into the blocking position again. Only in this way can a re-locking of the handle 10 via the locking device 15 occur. Otherwise, after each emergency release, the user would have to turn back the locking device 15 himself/herself in order to be able to lock the handle 10 normally again during use. In addition, the spring element 33 is necessary to ensure in an actuation of the handle 10 that the screw element 24 does not rotate in an undefined manner along with or this can twist and possibly remains so that a locking of the handle 10 with the locking device 15 is no longer possible.

(27) FIGS. 7 and 8 show cross-sectional overall views of a door fitting 1 in locking or release position of the locking device 15. The door fitting 1 comprises the emergency release means 23 in the form of the tappet 41, via which, by means of introducing an axial thrust movement from the side of the opposite, meaning left, handle 10, the locking device 15 can be transferred from the blocking into the release position.

(28) On the side of the locking device 15, the tappet 41 is shear-connected to the entrainment element 35 by means of the grub screw 40 meaning that the entrainment element 35 is carried along with during movement of emergency release element 23 along the longitudinal axis 17. The entrainment element 35 comprises the formation 36 protruding on the top side, which is engaged with the locking device 15 and, in particular, is connected in a positive locking manner to the projection 26. Via this positive-locking connection, an axial thrust movement of the emergency release element 3 is transferred to the locking device 15 and the blocking section 19 of the slide element 16 is pushed back out of the rosette 11 in such a way that the locking device 15 is transferred out of the blocking position shown in FIG. 7 to the release position shown in FIG. 8. In this case, the holding force exerted by the magnetic element 27 on the second contact surface 29 must be overcome.

(29) On the opposite side of the door fitting 1 opposite the locking device 15, the neck section 14 of the handle 10 comprises the end-face opening 38, which makes access to the emergency release element 23 possible. For the purpose of emergency release, an object passing through the opening 38, for example, a pin, is brought into contact with the end face of the emergency release element 23 and then a thrust movement at the longitudinal axis 17 is introduced into the emergency release element 23, which leads to the release of the locking device 15 in the manner previously described. The emergency release element 23 is guided through the guide sleeve 39 pressed into the inner of the shaft element 12.

(30) The end face of the emergency release element 23 is designed as signal surface 37 by being coloured with a signal colour, in particular red, for example, being painted. In the blocking position of the locking device 15 shown in FIG. 7, the signal surface 37 is flush with the contour of the handle 10 in such a way that the signal surface 37 is visible from the outside and signalizes the locked state of the door fitting 1. In the case of the release position shown to FIG. 8, the signal surface 37 is inserted into the interior of the spindle element 12 and thus effectively no longer visible from the outside.

(31) The invention in its embodiment is not limited to the preferred exemplary embodiment given above. Rather, a number of variants is conceivable that makes use of the presented solution even in the case of fundamentally different embodiments. All features an or advantages resulting from the claims, the description or the drawings, including constructive details or spatial arrangements, can be significant to the invention both by themselves as well as in a wide variety of combinations.

REFERENCE LIST

(32) 1 door fitting 10 handle 11 rosette 12 shaft element 13 adapter element 14 neck section 15 locking device 16 slide element 17 longitudinal axis 18 recess 19 blocking section 20 guide groove 21 opening 022 operating element 23 emergency release element 24 screw element 25 screw channel 26 projection 27 magnetic element 28 first contact surface 29 second contact surface 30 rear projection 31 tool holder element 32 reinforcement element 33 spring element 34 cover element 35 entrainment element 36 formation 37 signal surface 38 opening 39 guide sleeve 40 grub screw 41 tappet