Bollard drive for a blocking bollard, and blocking bollard

Abstract

A bollard drive for a blocking bollard for moving a blocking member between a blocking position and an opening position. The bollard drive includes a base element connected to a base body, a drive unit arranged on the base element, a coupling device, and an operating device. The drive unit has an electric motor, a transmission, and a drive element connected to the blocking member. The electric motor and the transmission electromechanically drive the blocking member relative to the base body via the drive element being driven by the transmission. The coupling device has first and second coupling parts and establishes a driving connection in the transmission when the first coupling part engages with the second coupling part. The first and the second coupling parts disengage via the operating device to interrupt the driving connection and to release a movement of the blocking member relative to the base body.

What is claimed is: 
     
         1 - 10 . (canceled) 
     
     
         11 . A bollard drive for a blocking bollard for moving a blocking member between a blocking position and an opening position along a movement direction relative to a base body which is connected to a substrate, the bollard drive comprising:
 a base element which is connected to the base body;   a drive unit which is arranged on the base element, the drive unit comprising an electric motor, a transmission, and a drive element which is connected to the blocking member, the electric motor and the transmission being configured to electromechanically drive the blocking member along the movement direction relative to the base body via the drive element being driven by the transmission;   a coupling device comprising a first coupling part and a second coupling part, the coupling device being associated with the transmission and being configured to establish a driving connection in the transmission upon an engagement of the first coupling part with the second coupling part; and   an operating device,   wherein,   the first coupling part and the second coupling part are configured to be disengaged via an operation of the operating device so as to interrupt the driving connection and to release a movement of the blocking member relative to the base body.   
     
     
         12 . The bollard drive as recited in  claim 11 , wherein,
 at least one of the first coupling part and the second coupling part comprises a coupling wheel which is operatively connected to the transmission, and   the coupling wheel of the at least one of the first coupling part and the second coupling part is disengageable from the respective other first coupling part or second coupling part via a displacement via a mechanical action on the coupling wheel.   
     
     
         13 . The bollard drive as recited in  claim 12 , wherein the displacement via the mechanical action on the coupling wheel is at least one of,
 an axial displacement of the coupling wheel along an axial direction, and   a radial displacement of the coupling wheel in a decoupling direction.   
     
     
         14 . The bollard drive as recited in  claim 13 , where in the decoupling direction is oriented substantially orthogonally to the movement direction. 
     
     
         15 . The bollard drive as recited in  claim 11 , wherein,
 the second coupling part comprises a coupling rod which is configured to be brought into engagement with the first coupling part and to be disengaged from the first coupling part, and   the coupling rod, when rotatably received, has a radius change relative to a decoupling axis, along a periphery, which radius change is positionable via a rotation.   
     
     
         16 . The bollard drive as recited in  claim 15 , wherein the coupling rod is disengaged from the first coupling part via at least one of,
 a displacement of the coupling rod via a mechanical action on the coupling rod in a decoupling direction, and   a mechanical rotation of the coupling rod about a decoupling axis which is oriented substantially in parallel with the movement direction.   
     
     
         17 . The bollard drive as recited in  claim 16 , wherein the decoupling direction is oriented substantially orthogonally to the movement direction. 
     
     
         18 . The bollard drive as recited in  claim 11 , wherein at least one of the first coupling part and the second coupling part is a gearwheel. 
     
     
         19 . The bollard drive as recited in  claim 11 , wherein,
 the first coupling part is a coupling wheel, and   the second coupling part is a coupling rod.   
     
     
         20 . The bollard drive as recited in  claim 19 , wherein,
 the coupling wheel is a gearwheel, and   the coupling rod is a gear rack.   
     
     
         21 . The bollard drive as recited in  claim 20 , wherein,
 the coupling device further comprises a blocking device which is mechanically connected to the operating device and which acts on at least one of the first coupling part and on the second coupling part,   the blocking device is configured to hold the first coupling part in engagement with the second coupling part in a blocking position, and   operation of the operating device at least one of displaces and rotates the blocking device into a release position via a mechanical action of the operating device on the blocking device so that at least one of the first coupling part and the second coupling part is/are released by the displaced and/or rotated blocking device, so that the first coupling part and the second coupling part are disengagable.   
     
     
         22 . The bollard drive as recited in  claim 21 , wherein,
 the blocking device comprises a locking bar, and   the locking bar is configured to act mechanically on the second coupling part and to hold the second coupling part in engagement with the first coupling part in the blocking position.   
     
     
         23 . The bollard drive as recited in  claim 22 , wherein,
 the locking bar acts mechanically on the coupling rod as the second coupling device and to hold the coupling rod in engagement with the coupling wheel as the first coupling part in the blocking position, and   at least one of a displacement, a rotation and a removal of the locking bar releases the coupling rod so that the coupling rod is disengagable from the coupling wheel.   
     
     
         24 . The bollard drive as recited in  claim 22 , wherein,
 the locking bar acts mechanically on the coupling rod as the second coupling device and to hold the coupling rod in engagement with the gearwheel as the first coupling part in the blocking position, and   at least one of a displacement, a rotation and a removal of the locking bar releases the coupling rod so that the coupling rod is disengagable from the gearwheel.   
     
     
         25 . The bollard drive as recited in  claim 22 , further comprising:
 a bearing device,   the coupling rod comprises a guide device on a rear side which faces away from the first coupling part, the guide device being configured to guide the coupling rod on the bearing device which is engageable with the guide device, and   the locking bar is further configured to be inserted in the guide device between the coupling rod and the bearing device so that the bearing device forms a counter bearing for the locking bar.   
     
     
         26 . The bollard drive as recited in  claim 25 , wherein,
 the guide device comprises a groove which comprises flanks which are arranged to encompass the bearing device, and   the locking bar is further configured to be at least one of,
 inserted into the groove in the guide device between the coupling rod and the bearing device, and 
 to be rotatable in the groove, 
   so that the bearing device forms the counter bearing for the locking bar.   
     
     
         27 . The bollard drive as recited in  claim 22 , wherein the operating device comprises an operating element which is configured to operate the operating device, the operating element providing at least one of,
 an action on the blocking device,   a removal of the locking bar, and   a rotation of the locking bar.   
     
     
         28 . The bollard drive as recited in  claim 27 , wherein the operating element is arranged to be accessible from an upper side of the blocking member. 
     
     
         29 . The bollard drive as recited in  claim 27 , wherein the operating element is configured to be operable by hand using at least one of an operating tool and a key. 
     
     
         30 . The bollard drive as recited in  claim 29 , further comprising:
 a variable cover device which is configured to protect the operating device against a penetration of dirt,   wherein,   the operating element comprises at least one of a handle, a tool connection and a lock so as to be operable by hand using the at least one of the operating tool and the key, and   the operating element is associated with the variable cover device.   
     
     
         31 . A blocking bollard comprising the bollard drive as recited in  claim 11 .