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1. 发明授权

US5188487A Ball end mill 失效
公开(公告)号：US5188487A
公开(公告)日：1993-02-23
申请号：US886409
申请日：1992-05-21
申请人： Masayuki Okawa , Yasunori Murakami
发明人： Masayuki Okawa , Yasunori Murakami
IPC分类号： B23C5/10 , B23C5/22
CPC分类号： B23C5/1045 , B23C5/2221 , B23C2200/123 , B23C2200/125 , B23C2200/203 , Y10T407/1908 , Y10T407/1948 , Y10T407/27
摘要： A ball end mill is disclosed which includes a tool body having an axis of rotation therethrough and having a forward end portion, and a cutting edge provided on the forward end portion of the tool body and having an arcuate shape as viewed in a direction opposite to the direction of rotation of the tool body. The cutting edge is comprised of a radially inner portion disposed adjacent to the axis of rotation of the tool body and extending radially inwardly of the tool body in a direction opposite to the direction of rotation of the tool body, and a radially outer portion extending from the inner portion radially outwardly and axially rearwardly of the tool body. Each of the inner and outer portions of the cutting edge is formed of a two-layered composite sintered complex having a base layer of cemented carbide and an upper layer of sintered super hardened compact disposed on the base layer and containing cubic boron nitride, diamond or the like. The composite sintered complex defining the outer portion of the cutting edge is arranged such that the upper layer is directed in the direction of rotation of the tool body while the composite sintered complex defining the inner portion of the cutting edge is arranged such that the upper layer is directed forwardly of the tool body.

2. 发明授权

US06729230B1 Calendar roll cleaning apparatus 失效
标题翻译：日历卷清洁装置
公开(公告)号：US06729230B1
公开(公告)日：2004-05-04
申请号：US09612271
申请日：2000-07-07
申请人： Masayuki Okawa , Kenichi Tanihata
发明人： Masayuki Okawa , Kenichi Tanihata
IPC分类号： B30B1530
CPC分类号： D21G3/00 , B08B1/008 , D21G3/02
摘要： The present invention relates to a calender roll cleaning apparatus for smoothing a surface of a magnetic layer of a magnetic recording medium passed through a plurality of calender rolls. The cleaning apparatus comprises a wiping cloth feeding apparatus that feeds a calender roll surface wiping cloth at a definite rate and tension. A cleaning liquid supplying apparatus supplies a controlled amount of cleaning liquid such that the cleaning liquid permeates into the wiping cloth fed from the wiping cloth feeding apparatus. A wiping cloth pressing apparatus presses the permeated wiping cloth at a controlled pressing load.
摘要翻译：本发明涉及一种用于使通过多个压光辊的磁记录介质的磁性层的表面平滑的压延辊清洁装置。清洁装置包括以一定速率和张力向砑光辊表面擦拭布供给的擦布输送装置。清洗液供给装置供给受控量的清洗液，使清洗液渗透到从擦拭布供给装置供给的擦拭布中。擦拭布按压装置以受控的按压负载按压渗透的擦拭布。

3. 发明授权

US5294219A Ball end mill 失效
标题翻译：球头铣刀
公开(公告)号：US5294219A
公开(公告)日：1994-03-15
申请号：US995534
申请日：1992-12-22
申请人： Hidehisa Shiratori , Tatsuo Arai , Masayuki Okawa
发明人： Hidehisa Shiratori , Tatsuo Arai , Masayuki Okawa
IPC分类号： B23C5/10 , B23C5/20
CPC分类号： B23C5/1045 , Y10T407/1908 , Y10T407/1924 , Y10T407/1948 , Y10T407/245
摘要： There is disclosed a ball end mill which has a hemishepherical portion formed at a front end of an end mill body. A pair of tip mounting seats are formed at the hemishepherical portion. A main throw-away tip and a second throw-away tip are secured on the tip mounting seat respectively such that the axial rake angle of the main tip is set at a negative angle and the axial rake angle of the second tip is set at a positive angle. There is also disclosed a second ball end mill. In the second ball end mill, only a main throw-away tip is secured on a tip mounting seat. The axial rake angle of the main tip is set at a negative angle. One or more chip breaker grooves are formed on a rake face of the tip.
摘要翻译：公开了一种球头立铣刀，其具有形成在端铣刀体的前端的半球形部分。在半球形部分形成有一对尖端安装座。分别将主抛弃尖端和第二丢弃尖端固定在尖端安装座上，使得主尖端的轴向前角设定为负角度，并将第二顶端的轴向前角设定为正角度。还公开了一种第二球头立铣刀。在第二球头立铣刀中，只有主抛弃尖端被固定在刀片安装座上。主尖端的轴向前角设定为负角度。一个或多个断屑槽形成在尖端的前刀面上。

4. 发明授权

US5190418A Rotary cutter 失效
公开(公告)号：US5190418A
公开(公告)日：1993-03-02
申请号：US857443
申请日：1992-03-25
申请人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito
发明人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito
IPC分类号： B23C5/06 , B23C5/20 , B23C5/22
CPC分类号： B23C5/207 , B23C5/2269 , B23C2200/125 , B23C2200/201 , B23C2200/203 , B23C2200/205 , B23C2200/243 , B23C2200/283 , B23C2200/365 , Y10T407/1924 , Y10T407/23
摘要： A rotary cutter is disclosed which includes a cutter body having an axis of rotation therethrough and a cutting insert releasably secured to a forward end of the cutter body. The cutting insert has marginal ridges defining a main cutting edge and an auxilliary cutting edge. The main cutting edge is directed radially outwardly of the cutter body while the auxiliary cutting edge is directed axially forwardly of the cutter body. The cutting insert has faces defining a first rake surface and a second rake surface. The first rake surface is disposed adjacent to the main and auxiliary cutting edges such that an axial rake angle is no less than +30.degree.. The second rake surface is disposed between the first rake surface and the auxiliary cutting edge such that an angle, defined between the second rake surface and the axis of rotation of the body as viewed in a cross-section perpendicular to the auxiliary cutting edge, is no larger than .degree.20.degree.. The second rake surface is formed such that a distance, measured in a direction parallel to the first rake surface and defined between the auxiliary cutting edge and the intersection of the first rake surface with the second rake surface, is set so as to range from 0.5 mm to 1.5 mm.

5. 发明授权

US5188488A End mill 失效
标题翻译：立铣刀
公开(公告)号：US5188488A
公开(公告)日：1993-02-23
申请号：US911810
申请日：1992-07-10
申请人： Masaaki Nakayama , Masayuki Okawa , Keiichi Nishiyama
发明人： Masaaki Nakayama , Masayuki Okawa , Keiichi Nishiyama
IPC分类号： B23C5/10
CPC分类号： B23C5/10 , Y10T407/1948 , Y10T407/1954 , Y10T407/1966
摘要： An end mill is disclosed which includes a tool body having a shaft-like shape. The tool body has a cutting edge portion formed at one end thereof. The cutting edge portion has a plurality of circumferential cutting edges formed on the circumference thereof along the longitudinal axis of the tool body. The end mill is characterized in that the cutting edge portion has the circumferential surface thereof which includes rake faces and flanks. Each of the rake faces adjoins one of two adjacent circumferential cutting edges. Each of the flanks intersects with one of the rake faces at one end and adjoins the other of the two adjacent circumferential cutting edges at the other end. The rake faces have a rake angle arranged between a range of 5.degree. to -45.degree. at a cross section perpendicular to the axis of the tool body. The flanks have a relief angle arranged between a range of 20.degree. to 45.degree. at a cross section perpendicular to the axis of the tool body. In one embodiment, the circumferential surface of the cutting edge portion is formed of an alternately connected plurality of concave surfaces receding inwardly toward the center of the cutting edge portion, with different ranges of rake and relief angles.
摘要翻译：公开了一种立铣刀，其包括具有轴状形状的工具主体。工具主体的一端形成有切削刃部。切削刃部具有沿工具主体的纵向轴线形成在其圆周上的多个周向切削刃。端铣刀的特征在于，切削刃部具有包括前刀面和侧面的圆周面。每个前刀面邻接两个相邻的周向切削刃之一。每个侧面在一端与一个前刀面相交，并且在另一端处与两个相邻的周向切削刃中的另一个相邻。前刀面在垂直于刀具主体轴线的横截面上具有排列在5°至-45°范围内的前角。侧面在垂直于工具主体的轴线的横截面处具有设置在20°至45°之间范围内的倾斜角。在一个实施例中，切割边缘部分的圆周表面由交替连接的多个凹面形成，所述多个凹面朝向切削刃部分的中心向内退回，具有不同的前角和倾斜角度。

6. 发明授权

US5314273A Cutting tool 失效
标题翻译：切割用具
公开(公告)号：US5314273A
公开(公告)日：1994-05-24
申请号：US851204
申请日：1992-03-13
申请人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito
发明人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito
IPC分类号： B23B29/02 , B23B31/02 , B23B31/107 , B23B51/00
CPC分类号： B23B29/022 , B23B31/026 , B23B31/1075 , Y10T279/16 , Y10T279/17821 , Y10T408/90993 , Y10T408/95 , Y10T408/957
摘要： The present invention relates to a cutting tool, especially the cutting tool having a head segment releasably attached to a shank segment. According to one aspect of this invention there is provided a cutting tool comprising: (i) a head segment rotatable around an axis thereof and a forward end portion having at least one cutting-insert receiving seat and a rearward end portion; (ii) a shank segment rotatable around an axis thereof having a forward end portion adapted to be coaxially joined with the rearward end of the head segment and a rearward end portion adapted to be fixedly secured to a machine spindle; (iii) an engaging hole coaxially formed on one of the above segments, which is provided with at least two internal threads communicating between the hole and the external surroundings through a peripheral surface of the segment; (iv) an engaging projection coaxially formed on other one of the segments and engagingly fitted into the hole; and (v) clamp screws respectively threaded through each internal thread, in which bottom ends of the clamp screws are contacted with a surface of the engaging projection.
摘要翻译：切割工具技术领域本发明涉及一种切割工具，特别是切割工具，其具有可释放地附接到柄部分的头部分段。根据本发明的一个方面，提供了一种切削工具，其包括：（i）可围绕其轴线旋转的头部段和具有至少一个切削刀片接收座和后端部的前端部; （ii）可绕其轴线旋转的柄段，其具有适于与头部段的后端同轴接合的前端部分，以及适于固定地固定到机床上的后端部分; （iii）同轴地形成在上述段中的一个上的接合孔，所述接合孔设置有至少两个内螺纹，所述至少两个内螺纹通过所述段的外周表面在所述孔和所述外部环境之间连通; （iv）同轴地形成在所述段中的另一个部分上且接合地装配到所述孔中的接合突起; 和（v）夹紧分别穿过每个内螺纹的螺钉，其中夹紧螺钉的底端与接合突起的表面接触。

7. 发明授权

US5186583A Rotary cutter 失效
标题翻译：旋转切割机
公开(公告)号：US5186583A
公开(公告)日：1993-02-16
申请号：US824395
申请日：1992-01-23
申请人： Masaaki Nakayama , Masayuki Okawa
发明人： Masaaki Nakayama , Masayuki Okawa
IPC分类号： B23C5/06 , B23C5/00 , B23C5/22
CPC分类号： B23C5/2269 , B23C5/006 , Y10T407/1918 , Y10T407/1922 , Y10T407/28
摘要： An inserted tooth rotary cutter is disclosed which includes a tool body having an axis of rotation therethrough and a plurality of indexable cutting inserts. The tool body is defined by forward and rearward axial faces and a circumferential surface lying between the forward and rearward axial faces. The tool body has a plurality of insert receiving recesses formed in the circumferential surface in circumferentially spaced relation to one another and has a mounting bore formed coaxially therewith. Furthermore, the tool body has a plurality of through holes formed in circumferentially spaced relation to one another. Each through hole is disposed between two adjacent insert receiving recesses and opens to the circumferential surface and the forward axial face. Each insert is releasably secured to a respective insert receiving recess.

8. 发明授权

US5156503A Boring bar tool 失效
标题翻译：镗杆工具
公开(公告)号：US5156503A
公开(公告)日：1992-10-20
申请号：US544176
申请日：1990-06-26
申请人： Osamu Tsujimura , Masaaki Nakayama , Masayuki Okawa
发明人： Osamu Tsujimura , Masaaki Nakayama , Masayuki Okawa
IPC分类号： B23B27/00 , B23B27/16 , B23B29/02
CPC分类号： B23B27/1662 , B23B27/007 , Y10S408/713 , Y10T408/865 , Y10T408/89
摘要： A boring bar tool for use with a tip is disclosed which has a tool body. The tip is mounted to one side of a forward end of the nose of the tool body. A neck is formed at a proximal end of the nose, and a shank in the form of a shaft is formed at a proximnal end of the neck. The neck has a cross-sectional area in a plane perpendicular to an axis of the shank which is larger than the cross-sectional area of the shank in the plane.

9. 外观设计

USD308874S Ball end mill 失效
公开(公告)号：USD308874S
公开(公告)日：1990-06-26
申请号：US181152
申请日：1988-04-13
申请人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
设计人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa

10. 发明授权

US4934881A Ball end mill 失效
标题翻译：球头铣刀
公开(公告)号：US4934881A
公开(公告)日：1990-06-19
申请号：US373513
申请日：1989-06-30
申请人： Osamu Tsujimura , Yuzo Koesashi , Masayuki Okawa
发明人： Osamu Tsujimura , Yuzo Koesashi , Masayuki Okawa
IPC分类号： B23C5/10
CPC分类号： B23C5/1018 , B23C2210/203 , Y10T407/1924 , Y10T407/1948 , Y10T407/26 , Y10T407/27
摘要： A ball end mill including an elongated body, a center insert, and a plurality of cutting inserts. The center insert and the cutting inserts are mounted on the forward end of the body. The center insert and each of the cutting inserts are adjacent to each other in such a manner that the center insert is located with a part thereof at the center. The center insert which is made of cemented carbide has cutting edges passing through the center axis. The cutting inserts are made of a super hard sintered compact. Each of the cutting inserts has a cutting edge aligned to the cutting edge of the center insert. The cutting edges of the cutting inserts and the center insert cooperate to draw a hemispherical path on rotation.
摘要翻译：一种球头立铣刀，包括细长主体，中心插入件和多个切削刀片。中心插入件和切削刀片安装在主体的前端。中心插入件和每个切削刀片彼此相邻，使得中心插入件的一部分位于中心。由硬质合金制成的中心刀片具有穿过中心轴线的切削刃。切削刀片由超硬烧结体制成。每个切削刀片具有与中心刀片的切削刃对准的切削刃。切削刀片和中心刀片的切削刃配合以在旋转时画出半球形路径。

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