Ultrasonic welding device
    5.
    发明授权

    公开(公告)号:US12109645B2

    公开(公告)日:2024-10-08

    申请号:US18235428

    申请日:2023-08-18

    摘要: A method of welding includes providing first and second joining partners, providing a welding apparatus that includes a sonotrode comprising a structured working surface, arranging the first and second joining partners to contact one another, and forming a welded connection between the first and second joining partners by contacting the first joining partner with the structured working surface and vibrating the sonotrode at an ultrasonic frequency, wherein the structured working surface comprises a plurality of apexes, a plurality of nadirs between immediately adjacent ones of the apexes, and planar sidewalls that extend between the nadirs and the apexes, and wherein for each of the apexes the planar sidewalls on either side of the respective apex extend along first and second planes that intersect one another at an acute angle.

    Multi-Layered Pocket Spring Strand Assembly
    9.
    发明公开

    公开(公告)号:US20240262677A1

    公开(公告)日:2024-08-08

    申请号:US18565282

    申请日:2022-05-10

    申请人: Spühl GMBH

    摘要: For forming a multi-layer strand of pocketed springs, a first strand (11) of pocketed springs (21) and a second strand of pocketed springs (22) are connected to each other. For this purpose a first pocketed spring (21) of the first strand (11) is aligned in a coaxial manner with a second pocketed spring (22) of the second strand (12) so that a first seam portion (31) of pocket material at an end of the first pocketed spring (21) overlaps with a second seam portion (32) at an end of the second pocketed spring (22), and the first seam portion (31) is welded to the second seam portion (32), e.g., using ultrasonic welding.