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Title:
MOUTHPIECE FOR MANUFACTURING HONEYCOMB
Document Type and Number:
Japanese Patent JP3701802
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To eliminate occurrence of wrinkles and to thicken an outer wall by providing a notched portion in a part, except the part of slit grooves, of a tapered part of the outer edge part of a mouthpiece.
SOLUTION: The main body 2 of a mouthpiece is shaped like a disk and it is provided with porcelain earth supply holes 11 opened in its rear and with slit grooves 12 opened in the surface thereof. The slit grooves 12 are formed in the shape of crosses in the surface of the main body 2 of the mouthpiece and the porcelain supply holes 11 are made to communicate with it at alternate points of intersection of the crosses. A notched portion 21 is provided in a part, except the part of the slit grooves 12, of a tapered part 13 of the outer edge part of the mouthpiece in the main body 2 thereof. This portion is constituted of a horizontal face 22 in the radial direction of the mouthpiece 1 and a vertical face in its axial direction in a longitudinal section and it is provided in the whole periphery of the tapered part 13 or only in a part of the tapered part 13 as occasion demands. According to this constitution, the pressure of porcelain earth moving between the tapered part 13 and a holding plate 3 is relaxed by expanding the porcelain earth in the notched portion 21 and it is possible to thicken a state in the vicinity of the outer periphery wherein occurrence of wrinkles is eliminated.


Inventors:
Makoto Miyazaki
Application Number:
JP30880398A
Publication Date:
October 05, 2005
Filing Date:
October 29, 1998
Export Citation:
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Assignee:
Nippon Insulator Co., Ltd.
International Classes:
B28B3/20; B28B3/26; (IPC1-7): B28B3/26
Domestic Patent References:
JP7052129A
JP56104008A
JP9141629A
JP9076219A
JP57006722A
Attorney, Agent or Firm:
Kosaku Sugimura
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao
Juno Aoki
Shiro Fujitani