Title:
BLOW NOZZLE FOR USE IN BLOW MOLDING DEVICE, BLOW MOLDING METHOD EMPLOYING SAID BLOW NOZZLE, AND STRETCHING ROD
Document Type and Number:
WIPO Patent Application WO/2019/230551
Kind Code:
A1
Abstract:
The objective of the present invention is to prevent residual liquid in a blow nozzle from falling. A blow nozzle 1 is provided with a nozzle body 2 and a stretching rod 3 capable of reciprocating in an axial direction relative to the nozzle body, wherein: the nozzle body 2 is provided with a nozzle tip end portion 4 adaptable to a mouth portion of a preform, an injection opening 5 of the nozzle tip end portion 4, a port 6 for introducing a fluid including at least a liquid into the nozzle body, and a fluid passage 7 providing communication between the port 6 and the injection opening 5; the stretching rod 3 passes through one segment of the fluid passage 7 extending to the injection opening 5, and a gap 8 through which the fluid can pass is formed between the stretching rod 3 and an inner circumferential wall 12 of the nozzle body 2 demarcating the one segment of the fluid passage 7; a closing portion for closing the injection opening when the stretching rod is in a prescribed position relative to the nozzle body is formed in the stretching rod 3; and when the stretching rod 3 is moved from the prescribed position in a direction such that a distal end of the stretching rod 3 projects further out from the injection opening 5, the injection opening 5 is opened.
Inventors:
TSUCHIYA YOICHI (JP)
SHIMADA KIYONORI (JP)
SHIMADA KIYONORI (JP)
Application Number:
PCT/JP2019/020439
Publication Date:
December 05, 2019
Filing Date:
May 23, 2019
Export Citation:
Assignee:
NISSEI ASB MACHINE CO LTD (JP)
International Classes:
B29C49/12; B29C49/46
Domestic Patent References:
| WO2017078772A1 | 2017-05-11 | |||
| WO2018079012A1 | 2018-05-03 |
Foreign References:
| JP2015506288A | 2015-03-02 | |||
| JP2011506130A | 2011-03-03 | |||
| JP2016532573A | 2016-10-20 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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