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).

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).

In described examples, a cushioning unit assembler includes first, second, third, and fourth rows of welding heads, a transport, and a feed module. The welding heads have a welding position and a retracted position. A main axis of the welding heads is oriented in a first dimension while in the welding position. The transport is disposed above the rows of welding heads. The transport has a main axis oriented in a second dimension perpendicular to the first dimension. The feed module includes a pocketed spring intake and a pocketed spring outflow. The transport is mechanically coupled to enable the feed module to move in the second dimension along a scope of movement. An exit aperture of the outflow vertically aligns with welding heads of the first row that are in the welding position, and vertically aligns with welding heads of the second row that are in the welding position.

In described examples, a cushioning unit assembler includes first, second, third, and fourth rows of welding heads, a transport, and a feed module. The welding heads have a welding position and a retracted position. A main axis of the welding heads is oriented in a first dimension while in the welding position. The transport is disposed above the rows of welding heads. The transport has a main axis oriented in a second dimension perpendicular to the first dimension. The feed module includes a pocketed spring intake and a pocketed spring outflow. The transport is mechanically coupled to enable the feed module to move in the second dimension along a scope of movement. An exit aperture of the outflow vertically aligns with welding heads of the first row that are in the welding position, and vertically aligns with welding heads of the second row that are in the welding position.

In described examples, a cushioning unit assembler includes first, second, third, and fourth rows of welding heads, a transport, and a feed module. The welding heads have a welding position and a retracted position. A main axis of the welding heads is oriented in a first dimension while in the welding position. The transport is disposed above the rows of welding heads. The transport has a main axis oriented in a second dimension perpendicular to the first dimension. The feed module includes a pocketed spring intake and a pocketed spring outflow. The transport is mechanically coupled to enable the feed module to move in the second dimension along a scope of movement. An exit aperture of the outflow vertically aligns with welding heads of the first row that are in the welding position, and vertically aligns with welding heads of the second row that are in the welding position.

In described examples, a cushioning unit assembler includes first, second, third, and fourth rows of welding heads, a transport, and a feed module. The welding heads have a welding position and a retracted position. A main axis of the welding heads is oriented in a first dimension while in the welding position. The transport is disposed above the rows of welding heads. The transport has a main axis oriented in a second dimension perpendicular to the first dimension. The feed module includes a pocketed spring intake and a pocketed spring outflow. The transport is mechanically coupled to enable the feed module to move in the second dimension along a scope of movement. An exit aperture of the outflow vertically aligns with welding heads of the first row that are in the welding position, and vertically aligns with welding heads of the second row that are in the welding position.

The present invention concerns a spring core (1, 1a, 12, 13, 17, 18) that may be used in e.g. bed mattresses, chairs or sofas. The spring core (1, 1a, 12, 13, 17, 18) comprises springs placed inside pocket (3). The pockets (3) are placed in a number of rows, which rows of pockets (3) are placed side by side. The spring core (1, 1a, 12, 13, 17, 18) is held in a compressed state by means of at least one cord (5). The at least one cord (5) is formed into braids (6) at opposite outer ends (7) of each row of pockets (3). Further, the at least one cord (4) forms a number of loops (8) on at least one side of each row of pockets (3). By pulling at one free end (10) of the at least one cord (5) the braids (6) and loops (8) are dissolved, allowing the spring core (1) to return to the non-compressed state.

A spool (100) of a linear string (110, 210, 310, 410) of pocketed springs is disclosed. The linear string of pocketed springs comprises springs (212, 312, 412) each provided in a textile pocket (214, 314, 414). The springs (212, 312, 412) comprise helically coiled steel wire springs. The textile pockets (214, 314, 414) are assembled to each other in linear direction. The linear string (110, 210, 310, 410) has a width of one textile pocket (214, 314, 414). The string (110, 210, 310, 410) of pocketed springs is present in the spool (100) spirally wound and in a compressed state such that the pocketed springs (212, 312, 412) can expand upon unwinding the string (110, 210, 310, 410) of pocketed springs from the spool (100).

A spool (100) of a linear string (110, 210, 310, 410) of pocketed springs is disclosed. The linear string of pocketed springs comprises springs (212, 312, 412) each provided in a textile pocket (214, 314, 414). The springs (212, 312, 412) comprise helically coiled steel wire springs. The textile pockets (214, 314, 414) are assembled to each other in linear direction. The linear string (110, 210, 310, 410) has a width of one textile pocket (214, 314, 414). The string (110, 210, 310, 410) of pocketed springs is present in the spool (100) spirally wound and in a compressed state such that the pocketed springs (212, 312, 412) can expand upon unwinding the string (110, 210, 310, 410) of pocketed springs from the spool (100).

A cover layer (23) of a fleece material for an innerspring unit (20) comprising a plurality of pocketed springs (29) is manufactured by supplying at least two longitudinal fleece webs (24, 25), which extend substantially parallel in a longitudinal direction and are spaced from one another, and repeatedly attaching a transverse fleece web (26, 27), which extends between the longitudinal fleece webs (24, 25) in a direction substantially perpendicular to the longitudinal direction, to the longitudinal fleece webs (24, 25). The transverse fleece web segments (26, 27) are attached to the longitudinal fleece webs (24, 25) such that they form together with the longitudinal fleece webs (24, 25) a framelike structure (21) serving as the cover layer (23).