Abstract: A mechanism (300) for transferring coil springs from a coil winding device (110) to a conveyor belt (210) of a pocketed coil assembly machine comprises a magnetic lift platform (310) for engaging a coil spring (10?) before being released at an output of the coil winding device (110). Further, the mechanism comprises a drive mechanism (315) for moving the lift platform (310) between the output of the coil winding device (110) and the conveyor belt (210).

Abstract: A cover layer of a fleece material for an innerspring unit comprising a plurality of pocketed springs is manufactured by supplying at least two longitudinal fleece webs, which extend substantially parallel in a longitudinal direction and are spaced from one another, and repeatedly attaching a transverse fleece web, which extends between the longitudinal fleece webs in a direction substantially perpendicular to the longitudinal direction, to the longitudinal fleece webs. The transverse fleece web segments are attached to the longitudinal fleece webs such that they form together with the longitudinal fleece webs a frame-like structure serving as the cover layer.

Abstract: A feed mechanism for pocketed spring strands is provided with at least one index wheel having a plurality of blades. The feed mechanism is provided with a motor. The at least one index wheel includes a first support member which is rotatable about a first rotation axis and carries a first support element which supports a shaft element of the blade to be tiltable about a tilt axis extending in parallel to the first rotation axis. The at least one index wheel includes a second support member which is rotatable about a second rotation axis which extends in parallel to the first rotation axis and carries a second support element which is slidable along the shaft element of the blade and supports the shaft element to be tiltable about the tilt axis.

Abstract: In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

Abstract: A mechanism for inserting coil springs (10) produced by multiple coil winding devices of a pocketed coil assembly machine (100) between fabrics (21, 22) for forming pockets enclosing the coil springs (10) is provided. The mechanism comprises belt conveyor mechanisms (200) with multiple parallel conveyor belts, which may be individually controlled. Each of the conveyor belts is associated with a respective one of the coil winding devices and is configured to receive coil springs (10) produced by the respective coil winding device. The mechanism further comprises a push mechanism (420) configured to push the coil springs (10) arranged on the conveyor belts, in a direction transversal to a conveying direction of the conveyor belts, between the fabrics and into a welding stage (500) of the pocketed spring assembly machine (100).

Abstract: In order to manufacture an innerspring unit (31) comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body (30) comprising a plurality of first strings (14) of pocketed springs is provided. In a subsequent second step, at least one second string (13c, 13d) of pocketed springs is attached to a lateral surface of the innerspring main body (30), so that the at least one second string (13c, 13d) of pocketed springs extends in a longitudinal direction of the innerspring main body (30). The springs (13) of the at least one second string (13c, 13d) of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body (30). The at least one second string (13c, 13d) of pocketed springs forms together with the innerspring main body (30) the innerspring unit (31).

Abstract: A spring feeding device configured to feed a spring (9) comprises a feeding member (60) delimiting a channel (68), a pusher (70) configured to push the spring (9) along the channel (68) delimited by the feeding member (60), and a drive mechanism con-figured to displace both the feeding member (60) and the pusher (70) such that the feeding member (60) and the pusher (70) move in opposite directions (91, 92).

Abstract: An apparatus for transporting springs comprises a transport device configured to receive a spring and a retaining mechanism configured to retain the spring received by the transport device. The retaining mechanism has at least one retaining member which comprises a magnetic material and which is mounted to be displaceable relative to the transport device. The apparatus comprises a release mechanism configured to release the spring received by the transport device. The release mechanism is configured to cause a relative displacement between the transport device and the at least one retaining member. The invention also relates to a method of transporting springs.