| 摘要 |
FIELD: building industry.SUBSTANCE: device comprises a power transmission element, a guide channel for guiding the fastening element, a feeding unit for inserting the fastening element into the guide channel, a clamping unit, a locking element, and an unlocking element open for external influences. The power transmission element is moved between the initial position and the placement position along a placement axis. The feeding unit comprises a feeding element. The clamping device is located relative to the guide channel with the ability of sliding in the direction of axial placement. The locking element in the open position enables the clamping device to slide, and in the closed position it prevents the slide of the clamping device. The unlocking element in the unlocking position holds the locking element in the position of release, and in the standby position it enables the locking element to move to the closed position. The unlocking element comprises the first snapping element, and the feeding element comprises the second snapping element. The first and the second snapping elements are engaged with each other by moving the unlocking element to the unlocking position.EFFECT: improved reliability of the device.13 cl, 45 dwg |
