Apparatus for manufacturing a cover layer of a fleece material, for an innerspring unit
AssigneeSpuhl AG
InventorAndreas Fischer
Life of this patent
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Abstract
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).
Claims9
An apparatus for manufacturing a cover layer of a fleece material for an innerspring unit, comprising:
- rolls for supplying at least two longitudinal fleece webs such that they extend substantially parallel in a longitudinal direction and are spaced from one another and a roll for supplying a transverse fleece web;
- and
- an attachment device for repeatedly attaching the transverse fleece web to the longitudinal fleece webs, the transverse fleece web extending between the longitudinal fleece webs in a direction substantially perpendicular to the longitudinal direction, the transverse fleece web attached to the longitudinal fleece webs forming together with the longitudinal fleece webs a frame-like structure serving as the cover layer, wherein the attachment device comprises a holding device for holding the transverse fleece web and positioning the transverse fleece web with the holding device at the longitudinal fleece webs;
- a welding device for attaching the transverse fleece web adjacent to a first transverse edge of the transverse fleece web to the longitudinal fleece webs;
- a control unit for releasing the holding device so that the transverse fleece web attached to the longitudinal fleece webs is conveyed together with the longitudinal fleece webs;
- and
- a cutter for cutting the transverse fleece web to a desired width in the longitudinal direction to obtain a second transverse edge of the transverse fleece web, wherein the welding device attaches a second transverse edge of the transverse fleece web to the longitudinal fleece webs.
Dependencies are inferred from the claim text.