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.

A spring mattress comprises a plurality of interconnected coil springs enclosed in casings, the springs having a first and a second end, wherein for at least one of the springs, casing portions arranged at the first and second ends of the spring are connected to each other through the spring by a joint. The joined casing portions comprise openings through the spring. Pieces of foam material are arranged in the openings, so that a first portion of each piece of foam material extends towards the first end of the spring and a second portion of each piece of foam material extends towards the second end of the spring. An apparatus and method for manufacturing such a mattress are also disclosed.

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.

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.

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.

A device and a method for manufacturing a pocket spring bed net. The device for manufacturing a pocket spring bed net includes a supply mechanism for providing sheet-like flexible materials; a spring string conveying mechanism with a first gap for clamping and conveying pocket spring strings; a glue spraying mechanism which sprays glue onto the sheet-like flexible materials and/or the pocket spring strings; and a pushing mechanism arranged in front of the spring string conveying mechanism and including at least one movable pushing and grasping component, where the pushing and grasping component pushes the sheet-like flexible materials and the pocket spring strings to be in contact with each other and bonded to form a pocket spring bed net. The embodiments improve the transportation cost and storage cost of pocket spring bed nets, and solve the problem that the pocket spring bed nets are difficult to compress and roll.

A device and a method for manufacturing a pocket spring bed net. The device for manufacturing a pocket spring bed net includes a supply mechanism for providing sheet-like flexible materials; a spring string conveying mechanism with a first gap for clamping and conveying pocket spring strings; a glue spraying mechanism which sprays glue onto the sheet-like flexible materials and/or the pocket spring strings; and a pushing mechanism arranged in front of the spring string conveying mechanism and including at least one movable pushing and grasping component, where the pushing and grasping component pushes the sheet-like flexible materials and the pocket spring strings to be in contact with each other and bonded to form a pocket spring bed net. The embodiments improve the transportation cost and storage cost of pocket spring bed nets, and solve the problem that the pocket spring bed nets are difficult to compress and roll.

A pocket-spring core having at least one first zone and at least one second zone, wherein the first zone has at least two rows of a first spring portion and at least one of the second zones has at least one row or line of a second spring portion, wherein the second spring portion has at least two layers which are located vertically one above the other and comprise in each case a plurality of helically wound first compression springs, in a first, upper layer, and second compression springs, in a second, lower layer, and at least one row of a third spring portion, is distinguished in that at least one of the second zones of the pocket-spring core has at least one channel-like depression.