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1. 发明专利

JP2002301541A PATTERN IN MOLD FOR CASTING 失效
公开(公告)号：JP2002301541A
公开(公告)日：2002-10-15
申请号：JP2001106554
申请日：2001-04-05
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , MAEDA HIDEJI , MATSUMOTO KENJIRO
IPC分类号： B22C7/02
摘要： PROBLEM TO BE SOLVED: To improve a mold drawability when drawing out the mold from a mold pattern. SOLUTION: There is provided vent holes 10 communicated with the atmosphere outside the mold pattern 4 from a surface in contact with the mold 2 molded in the mold pattern 4 for molding the mold 2 through the inner part of the mold pattern 4.

2. 发明专利

JPH03295450A IMAGE PICKUP METHOD FOR CYLINDRICAL INSPECTION OBJECT 失效
公开(公告)号：JPH03295450A
公开(公告)日：1991-12-26
申请号：JP9829590
申请日：1990-04-12
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , MIZUTA KIYOTSUGU , OOHASHI ATSUYUKI
IPC分类号： G01N21/88 , G01N21/952 , H04N7/18
摘要： PURPOSE:To increase an area which can be inspected and to improve the inspection efficiency by arranging a reflecting plate which surrounds the inspection object area of the object of inspection and increasing the quantity of light of the peripheral part of the inspection object area adjoining to the reflecting plate. CONSTITUTION:A projector 4 irradiates the inspection object area 2 with light, a CCD camera 5 picks up the image of the area 2, and an image processor 6 converts the picked-up image into a binarization image, which is displayed on a monitor 7. The plane reflecting plate 3 is provided while surrounding the area 2. Consequently, reflected light from the surface of the area 2 and reflected light from the reflecting plate 3 are superposed at the peripheral part of the area 2 adjoining to the reflecting plate, so that the quantity of light is increased. Consequently, respective picture elements in the image of the area 2 picked up by the camera 5 have approximate brightness, an area which can not be inspected as the result of the binarization is decreased, and the area which can be inspected is increased to improve the inspection efficiency.

3. 发明专利

JPH0382940A DETECTION OF INNER SURFACE DEFECT OF CYLINDRICAL WORK 失效
公开(公告)号：JPH0382940A
公开(公告)日：1991-04-08
申请号：JP21991389
申请日：1989-08-25
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , OOHASHI ATSUSHI
IPC分类号： G01N21/88 , G01N21/93 , G01N21/954 , G06T1/00 , G06T7/00
摘要： PURPOSE:To make it possible to ensure the detection of defects at the inner surface of a cylindrical work in a short time by comparing the luminance of each picture element with two threshold values which are set in response to the illumination irregularities. CONSTITUTION:Lighting is applied on the inner surface of a cylindrical work at a low angle. The image of the inner surface is picked up with a two-dimensional camera, and the image is outputted to an image processing device. Since the object to be photographed has the curved surface, illumination irregularities are formed in the obtained image. The luminance value itself at a place without irregularities becomes the curved state. With a curved base line C as a reference, the luminance value at a protruding part 1 on a position line B is increased. The luminance value at a recess part 2 is decreased. Then, the luminance of each picture element is compared with preset two threshold values D and E. A picture element F whose luminance value is larger than one threshold level D having the smaller value is obtained. A picture element E whose luminance value is smaller than smaller threshold value is obtained. The picture elements F and E and the other picture element are binary-coded. The picture element F whose luminance value is larger than one threshold value D whose value is large and the picture element G whose luminance value is smaller than the other smaller threshold value E are detected as the inner defects of the work.

4. 发明专利

JP2918444B2 失效
公开(公告)号：JP2918444B2
公开(公告)日：1999-07-12
申请号：JP5748694
申请日：1994-03-28
申请人： GUNEI BOODEN KK , SANEI SHIRIKA KK , KUBOTA KK
发明人： SEKINE SHINICHI , FUJITA MASAHIKO , NAKANO TOMOKUNI , FUNAHASHI MITSURU , UMAGOME YOSHINORI
IPC分类号： B22C1/00 , B22C1/16 , B22C1/22

5. 发明专利

JP2002307134A PATTERN OF MOLD FOR CASTING 失效
公开(公告)号：JP2002307134A
公开(公告)日：2002-10-22
申请号：JP2001109370
申请日：2001-04-09
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , MAEDA HIDEJI , MATSUMOTO KENJIRO
IPC分类号： B22C7/00
摘要： PROBLEM TO BE SOLVED: To improve housing properties of a pattern by miniaturizing a housing space of the pattern for molding a mold for casting. SOLUTION: A master mold pattern 4 for molding a master mold used when a pipe is cast, is divided into the inside and the outside in the radial direction and one of the divided master mold patterns 4 is used as a master mold foaming pattern 13 and the other is used as a common used base part 14 for supporting the master mold foaming pattern 13.

6. 发明专利

JPH07265995A CASTING SAND FOR SWEEPING MOLDING 失效
公开(公告)号：JPH07265995A
公开(公告)日：1995-10-17
申请号：JP5748694
申请日：1994-03-28
申请人： GUNEI BOODEN KK , SANEI SHIRIKA KK , KUBOTA KK
发明人： SEKINE SHINICHI , FUJITA MASAHIKO , NAKANO TOMOKUNI , FUNAHASHI MITSURU , UMAGOME YOSHINORI
IPC分类号： B22C1/00 , B22C1/16 , B22C1/22
摘要： PURPOSE:To provide a casting sand for sweeping molding having improved moldability and no fear of the contamination of environment. CONSTITUTION:This casting sand for sweeping molding is composed of sand, binder and water constituting an aggregate. The binder is made of potassium alkaline phenolic resin and hardening agent as the main components. The sand contains 0.5-2wt.% potassium alkaline phenolic resin and 1.5-3.6wt.% water. At this time, as the sand, the mixed sand of coarse grain sand and fine grain sand having the average grain diameter of

7. 发明专利

JP2002307392A HOT WIRE RETENTION MEANS FOR HOT WIRE WORKING MACHINE 失效
公开(公告)号：JP2002307392A
公开(公告)日：2002-10-23
申请号：JP2001110708
申请日：2001-04-10
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , MAEDA HIDEJI , MATSUMOTO KENJIRO
IPC分类号： B26F3/12
摘要： PROBLEM TO BE SOLVED: To accurately cut out a contour shape in cutting thermoplastic resin with a hot wire by eliminating influence of heat expansion of the wire from heat generation without thickening the hot wire for increasing stiffness of the hot wire. SOLUTION: In the hot wire working machine cutting out a solid from a block of thermoplastic resin material 3 by contacting a hot wire 1 bent and formed in a wire shape consistent with a product surface contour and relatively moving the hot wire along the product surface while melting the thermoplastic resin material 3, at least one of a pair of retaining means 2 retaining one and another end of the hot wire 1 is constructed in such a manner that movement in the axial direction of the hot wire 1 can be adjusted and expansion of the hot wire 1 from heat expansion can be adjusted to tighten up.

8. 发明专利

JP2002307136A FOAMED RESIN PATTERN 失效
公开(公告)号：JP2002307136A
公开(公告)日：2002-10-22
申请号：JP2001109371
申请日：2001-04-09
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , MAEDA HIDEJI , MATSUMOTO KENJIRO
IPC分类号： B22C7/02 , B22C9/04
摘要： PROBLEM TO BE SOLVED: To improve the surface strength of a mold pattern when the mold pattern is formed from foamed resin, and to smoothen the irregularityies in the surface at the same time. SOLUTION: The pattern 1 for forming a mold is formed from foamed synthetic resin. The surface 1a is uniformly coated with a resin coating material 2 prepared with a solvent which does not dissolve the foamed synthetic resin, and the coating material is dried and hardened, so that the ruggedness 1b in the surface is smoothened. Further, a durable coating film layer 3 by the above resin coating material is formed on the surface.

9. 发明专利

JP2002301398A METHOD FOR TREATING THERMOPLASTIC RESIN MATERIAL AND APPARATUS THEREFOR 失效
公开(公告)号：JP2002301398A
公开(公告)日：2002-10-15
申请号：JP2001110709
申请日：2001-04-10
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , MAEDA HIDEJI , MATSUMOTO KENJIRO
IPC分类号： B02C18/00 , B02C19/18 , B29B17/00 , B29B17/04 , B29K301/12 , B02C18/44
摘要： PROBLEM TO BE SOLVED: To easily and rapidly convert a waste large-sized thermoplastic resin material into small blocks without requiring labor or generating dust or noise. SOLUTION: A block-shaped thermoplastic resin material 7 is put on the surface of a net 5 formed from heating wires 5a and the heating wires 5a are made to heat to the melting temperature of the thermoplastic resin material 7 or above to melt and divide the thermoplastic resin material 7 in the size of the openings of the net 5 by its own weight.

10. 发明专利

JP2002282999A METHOD FOR MAKING PATTERN FOR MOLD FORMING 失效
公开(公告)号：JP2002282999A
公开(公告)日：2002-10-02
申请号：JP2001086526
申请日：2001-03-26
申请人： KUBOTA KK
发明人： FUNAHASHI MITSURU , MAEDA HIDEJI , MATSUMOTO KENJIRO
IPC分类号： B22C7/00 , B29C33/38
摘要： PROBLEM TO BE SOLVED: To provide a method for making a extremely precise pattern for a mold which uses a low-priced material than wood and is easily made by anybody without skill. SOLUTION: This method has characteristics that a heat generating line 1, which is formed by bending along the outline of a designated pattern for mold forming, is made to contact in a heated condition with an expandable synthetic resin block body 3 which is large enough to create the pattern for mold forming, and both the heat generating line 1 and the block 3 are made to move relatively each other, so that the block 3 is cut out by melting to form the shape of the pattern for mold forming.

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