Title:
ANVIL AND ULTRASONIC SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/051835
Kind Code:
A1
Abstract:
In an ultrasonic sealing technique using a pair of horns, the purpose of the present invention is to improve sealing properties of a seal through an innovative shape of the anvil. This anvil (4) is in an ultrasonic sealing device that bonds a laminate at a vibration-imparting surface (3a) of the pair of horns (3) and a contact surface formed on the distal end surface of the anvil (4). On the contact surface, there are a left and right welding surface (10a) projecting towards the horns (3), opposite of two vibration-imparting surfaces (3a), and arranged along the extension direction of the vibration-imparting surfaces (3a). The left and right welding surfaces (10a) are configured such that the area per unit length along the aforementioned extension direction becomes larger, continuously or step-wise, in the direction away from the seal center, which is adjacent to the two vibration-imparting surfaces (3a).
Inventors:
YUHARA NORITAKA (JP)
Application Number:
PCT/JP2017/031842
Publication Date:
March 22, 2018
Filing Date:
September 04, 2017
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
B65B51/22; B29C65/08; B31B70/66; B65B7/16
Foreign References:
| JP3904675B2 | 2007-04-11 | |||
| JP2001018924A | 2001-01-23 | |||
| JP2005343496A | 2005-12-15 | |||
| JP2001233309A | 2001-08-28 | |||
| JP4093775B2 | 2008-06-04 | |||
| US20100236197A1 | 2010-09-23 |
Attorney, Agent or Firm:
HIROSE Hajime et al. (JP)
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