Title:
車両搭載型コンクリート練混ぜドラム及びその製造方法
Document Type and Number:
Japanese Patent JP2005528254
Kind Code:
A
Abstract:
A method of manufacture of a vehicle mounted rotary concrete mixing drum of the type having an opening at one end for receiving and/or discharge of concrete therefrom and at the other end, means for engaging a drive assembly so as to rotate the drum for mixing or discharging concrete. The drum is manufactured from at least one mold using at least one plastics material and further includes integrally attached vanes which outstand from the internal surface of the drum forming an archimedian spiral disposed such that when the drum is rotated in a first direction the concrete contents are mixed and when the drum is rotated in a second direction the contents are discharged from the drum; wherein, the method comprises the steps of; a) preparing a first generally helical inner mold part containing a surface extending between first and second helical edges; b) mounting the first helical inner mold part on a support c) enclosing the inner helical mold assembly within an outer mold formed by at least one outer mold part; d) fitting a second mating inner helical mold part to the first inner mold part to form an inner mold assembly; e) injecting a polyurethane elastomer into a cavity defined by said inner mold assembly and the outer mold assembly to form an inner wall element comprising one half of an interior wall of the mixer and one helical blade; f) allowing said polyurethane to cure; g) removing said at least one outer mold parts to expose said inner wall element; h) removing said inner wall element one of said inner molds.
More Like This:
| WO/1996/030179 | PORTABLE HAND-HELD CONCRETE AND MORTAR MIXER |
| JPS5845918 | KNEADING METHOD |
Inventors:
Anthony Kouri
Rogers, william
Rogers, william
Application Number:
JP2004509024A
Publication Date:
September 22, 2005
Filing Date:
May 31, 2003
Export Citation:
Assignee:
Anthony Kouri
International Classes:
B28C5/18; B28C5/42; B29C45/14; B29C69/00; B29C65/00; B29C65/56; B29C70/32; B29C70/88; B29D23/00; B29K75/00; (IPC1-7): B28C5/42; B29C69/00
Domestic Patent References:
| JPH03222702A | 1991-10-01 | |||
| JPH05329352A | 1993-12-14 | |||
| JPH0435921A | 1992-02-06 | |||
| JPS6166625A | 1986-04-05 | |||
| JP2003511269A | 2003-03-25 | |||
| JPH0347121U | 1991-05-01 |
Foreign References:
| WO2001026871A1 | 2001-04-19 | |||
| WO1997032702A1 | 1997-09-12 | |||
| US6149291A | 2000-11-21 | |||
| US1501566A | 1924-07-15 | |||
| US5378061A | 1995-01-03 |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeru Sakuma
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeru Sakuma