公开(公告)号：US5768668A

公开(公告)日：1998-06-16

申请号：US790858

申请日：1997-02-03

申请人： Keita Shiraki ,  Saburou Hayashi ,  Akitoshi Nozawa ,  Mitsuyoshi Kondo

发明人： Keita Shiraki ,  Saburou Hayashi ,  Akitoshi Nozawa ,  Mitsuyoshi Kondo

IPC分类号： B29D99/00 ,  B29K75/00 ,  B29K105/04 ,  F16C13/00 ,  G03G15/08

CPC分类号： G03G15/0808 ,  G03G2215/0174 ,  G03G2215/0869

摘要： A toner supply roll including a metal shaft and a cylindrical soft polyurethane sponge structure formed on an outer circumferential surface of the metal shaft by foam molding of a polyurethane material in a mold cavity of a mold. The sponge structure having a hardness of 350 g or lower includes a skin layer having generally smooth surface and openings, and a network of cells. The openings are open in the smooth surface and communicate with respective ones of the cells located adjacent to the skin layer, such that the openings are substantially aligned with central portions of the respective ones of the cells in axial and radial directions of the sponge structure. Each opening has a size within a range of 100-800 .mu.m, and a total area of the openings is at least 20% of a total area of the smooth surface of the skin layer. The method of producing the roll is also disclosed.

摘要翻译： 一种调色剂供应辊，其包括金属轴和圆筒形软质聚氨酯海绵结构，其通过在模具的模腔中的聚氨酯材料的发泡成型形成在所述金属轴的外周表面上。 具有350g或更低的硬度的海绵结构包括具有通常光滑的表面和开口的表层和细胞网络。 开口在光滑的表面上开口并且与位于皮肤层附近的相应的单元连通，使得开口基本上与海绵结构的轴向和径向方向上的相应单元的中心部分对齐。 每个开口的尺寸在100-800μm的范围内，并且开口的总面积为表层的光滑表面的总面积的至少20％。 还公开了生产辊的方法。

公开(公告)号：US6149564A

公开(公告)日：2000-11-21

申请号：US116741

申请日：1998-07-15

申请人： Akitoshi Nozawa ,  Keita Shiraki

发明人： Akitoshi Nozawa ,  Keita Shiraki

IPC分类号： B29C44/00 ,  G03G15/08 ,  A01B29/04

CPC分类号： B29C44/356 ,  B29C44/005 ,  G03G15/0808

摘要： A toner supply roll including a cylindrical soft polyurethane sponge structure formed on an outer circumferential surface of a metal shaft by foam molding of a polyurethane material in a mold cavity of a mold. The sponge structure having hardness of 350 g or lower includes a skin layer having a network of cells and openings open in its outer circumferential surface and communicating with respective ones of the cells located adjacent to the skin layer, such that the openings are substantially aligned with central portions of the respective ones of the cells in axial and circumferential directions of the sponge structure. Each opening has a size of 100-800 .mu.m, and a total area of the openings is at least 20% of the total surface area of the skin layer. The sponge structure has a plurality of protrusions formed on the outer circumferential surface of the skin layer so as to extend linearly or helically in the axial direction of the sponge structure. The protrusions have a height of 20-3000 .mu.m and are arranged in a circumferential direction of the sponge structure with a pitch of 300-3000 .mu.m, so that the skin layer is provided with recesses each interposed between the adjacent protrusions. Methods of producing the roll are also disclosed.

摘要翻译： 一种调色剂供应辊，其包括通过在模具的模腔中发泡聚氨酯材料而形成在金属轴的外周表面上的圆柱形软质聚氨酯海绵结构。 具有350g或更低的硬度的海绵结构包括具有网孔的表皮层，孔的孔在其外圆周表面上开口并且与位于皮层附近的相应的单元连通，使得开口基本上与 海绵结构的轴向和圆周方向上的各个单元的中心部分。 每个开口具有100-800μm的尺寸，并且开口的总面积为表层的总表面积的至少20％。 海绵结构体具有形成在表层的外周面上的多个突起，以便沿海绵结构的轴向线性或螺旋地延伸。 突起的高度为20-3000μm，并且以300-3000μm的间距沿海绵结构的圆周方向布置，使得表层设置有相互突出之间的凹部。 还公开了生产辊的方法。

公开(公告)号：US5037073A

公开(公告)日：1991-08-06

申请号：US536090

申请日：1990-06-11

申请人： Nobuo Matsumoto ,  Keita Shiraki

发明人： Nobuo Matsumoto ,  Keita Shiraki

IPC分类号： F16F13/14

CPC分类号： F16F13/1436

摘要： A fluid-filled cylindrical elastic mount having an elastic body between an inner and an outer sleeve, a movable member movably disposed in a pressure-receiving chamber defined by the outer sleeve and the elastic body, a rigid member cooperating with the outer sleeve to define a space diametrically opposite to the pressure-receiving chamber in a load-receiving direction of the mount, and a partition member having a flexible portion and dividing the space into two sections one of which serves as an equilibrium chamber disposed diametrically opposite to the pressure-receiving chamber. The movable member and the inner surface of the pressure-receiving portion define a fluid resonance portion for isolating high-frequency vibrations. An orifice passage is spirally formed for fluid communication between the pressure-receiving and equilibrium chambers, for damping low-frequency vibrations.

公开(公告)号：US4998345A

公开(公告)日：1991-03-12

申请号：US543435

申请日：1990-06-26

申请人： Yoshiki Funahashi ,  Nobuo Matsumoto ,  Keita Shiraki

发明人： Yoshiki Funahashi ,  Nobuo Matsumoto ,  Keita Shiraki

IPC分类号： F16M7/00 ,  F16F13/14

CPC分类号： F16F13/1436 ,  F16F13/14 ,  Y10T29/49622 ,  Y10T29/49844 ,  Y10T29/49863 ,  Y10T29/49913

摘要： A method of manufacturing a fluid-filled elastic mount including an elastic body connecting an inner and an outer sleeve, and having a pressure-receiving and an equilibrium chamber which are filled with a non-compressible fluid and communicate with each other through an orifice. The method includes preparing an inner unit having an intermediate sleeve connected to the inner sleeve by the elastic body, and a pocket formed in the elastic body such that the pocket is open through the intermediate sleeve and has an axial dimension defined by axially opposite side walls of the elastic body. The method further includes placing the inner unit within a mass of the fluid, and press-fitting the outer sleeve on the inner unit so as to provide the pressure-receiving chamber filled with the fluid, while applying an axial force to at least one of the side walls in the axial direction of the mount, to thereby cause elastic deformation of the side wall or walls so as to expand into the pocket. The axial force is removed from the side wall or walls to increase the volume of the pressure-receiving chamber and thereby reduce the volume of the equilibrium chamber.

公开(公告)号：US07284649B2

公开(公告)日：2007-10-23

申请号：US11296450

申请日：2005-12-08

申请人： Keita Shiraki ,  Koji Yamaguchi

发明人： Keita Shiraki ,  Koji Yamaguchi

IPC分类号： B65G13/00

CPC分类号： G03G15/6529 ,  B65H27/00 ,  B65H2404/18 ,  B65H2701/1912 ,  G03G2215/00679 ,  G03G2215/00683

摘要： A sheet feeding roller, available at a lower cost, having lower hardness with securing both abrasion resistance and sustainability of friction coefficient. The sheet feeding roller comprises a hub, an inner layer provided on an outer peripheral surface of the hub, and an outer layer provided on an outer peripheral surface of the inner layer, the inner layer and the outer layer are formed by an unfoamed cured body of thermosetting urethane rubber wherein the outer layer is harder than the inner layer.

摘要翻译： 以较低成本获得的片材进给辊具有较低的硬度，同时确保了摩擦系数的耐磨性和可持续性。 片材进给辊包括轮毂，设置在轮毂的外周面上的内层和设置在内层的外周面上的外层，内层和外层由未发泡的固化体形成 的热固性聚氨酯橡胶，其中外层比内层硬。

公开(公告)号：US06196958B1

公开(公告)日：2001-03-06

申请号：US09315368

申请日：1999-05-18

申请人： Keita Shiraki ,  Akihiko Kaji

发明人： Keita Shiraki ,  Akihiko Kaji

IPC分类号： F16C1300

CPC分类号： G03G15/0808

摘要： A toner supply roll including a cylindrical soft polyurethane sponge structure which is integrally formed on a metal shaft and which has a hardness of not higher than 350 g, a network of cells, and a skin layer having openings which are open in its outer circumferential surface and which communicate with respective radially outermost ones of the cells located adjacent to the skin layer, wherein the openings have a size of 100-800 &mgr;m, and a total area percent of at least 20% of the total area of the outer circumferential surface of the skin layer, and the sponge structure has a plurality of helical protrusions formed on the outer circumferential surface of the skin layer so as to extend helically about an axis of the sponge structure, the helical protrusions being arranged in a circumferential direction of the sponge structure, so as to form a plurality of helical recesses each interposed between adjacent ones of the helical protrusions, so that helical protrusions and recesses cooperate to define a toothed profile in transverse cross section in a plane perpendicular to the axis.

摘要翻译： 一种调色剂供应辊，其包括一体地形成在金属轴上并具有不高于350g的硬度的圆柱形软质聚氨酯海绵结构，细胞网络和具有在其外周表面上开口的开口的表皮层 并且与位于皮肤层附近的单元的径向最外侧的单元连通，其中开口具有100-800μm的尺寸，并且总面积百分比至少为外圆周表面总面积的20％ 皮肤层和海绵结构具有形成在表层的外周表面上的多个螺旋形突起，以便围绕海绵结构的轴线螺旋地延伸，螺旋突起沿海绵结构的圆周方向布置 以便形成多个螺旋形凹槽，每个螺旋凹槽各自插入在相邻的螺旋突起之间，使得螺旋形突起和凹槽合拢 以在垂直于轴线的平面中以横截面限定齿形轮廓。

公开(公告)号：US07703761B2

公开(公告)日：2010-04-27

申请号：US11851841

申请日：2007-09-07

申请人： Keita Shiraki

发明人： Keita Shiraki

IPC分类号： B25F5/02 ,  B65H3/06

CPC分类号： B65H27/00 ,  B65H5/06 ,  B65H2404/1115 ,  B65H2404/18 ,  B65H2701/1912

摘要： A sheet feed roller prolonging sustainability of sheet feeding capability even if crushed powders are scattered. The sheet feed roller comprises a hub and an elastic layer provided on an outer peripheral surface of the hub, wherein plural grooves axially extend at specific intervals circumferentially on an outer peripheral surface of the elastic layer, a textured surface comprising mountain portions and a valley portion is formed on an outer peripheral surface of the elastic layer except for the grooves, and on bottom surfaces and wall surfaces of the grooves, a ratio of a total area of the bottom surfaces of the grooves to a total area of the outer peripheral surface of the elastic layer except for the grooves is 10% to 20%.

摘要翻译： 即使粉碎的粉末散布，片材进给辊延长了片材进给能力的可持续性。 片材进给辊包括轮毂和设置在轮毂的外周表面上的弹性层，其中多个凹槽在弹性层的外周表面沿周向以特定间隔轴向延伸，纹理表面包括山部分和谷部分 形成在除了槽之外的弹性层的外周面上，并且在槽的底面和壁面上，槽的底面的总面积与外周面的总面积的比率 凹槽以外的弹性层为10〜20％。

公开(公告)号：US06734274B2

公开(公告)日：2004-05-11

申请号：US09940787

申请日：2001-08-29

申请人： Satoshi Suzuki ,  Hitoshi Yoshikawa ,  Yoshihiro Wago ,  Keita Shiraki

发明人： Satoshi Suzuki ,  Hitoshi Yoshikawa ,  Yoshihiro Wago ,  Keita Shiraki

IPC分类号： C08G1848

CPC分类号： C08G18/4808 ,  C08G18/12 ,  C08G18/3206

摘要： A urethane composition for making a sheet transport roll, the composition comprising: (A) a polyether polyol blend containing polytetramethyleneether glycol (PTMG) and polypropylene glycol (PPG) in a weight ratio of PTMG/PPG=99/1 to 50/50; (B) a polyisocyanate; and (C) a chain lengthening agent; the urethane composition in a cured state having a hardness of not smaller than 40, and a crosslinking density of 0.15 to 0.8 mmol/cm3 or an allophanate bond concentration of 0.03 to 0.07 mmol/g.

摘要翻译： 一种用于制造片材输送辊的聚氨酯组合物，该组合物包含：（A）以PTMG / PPG = 99 / 1-50 / 50的重量比含有聚四亚甲基醚二醇（PTMG）和聚丙二醇（PPG）的聚醚多元醇混合物; （B）多异氰酸酯; 和（C）链增长剂; 固化状态下的硬度不小于40，交联密度为0.15〜0.8mmol / cm 3或脲基甲酸酯键浓度为0.03〜0.07mmol / g的氨基甲酸酯组合物。

公开(公告)号：US5609554A

公开(公告)日：1997-03-11

申请号：US416638

申请日：1995-04-05

申请人： Saburou Hayashi ,  Keita Shiraki ,  Takafumi Yamamoto

发明人： Saburou Hayashi ,  Keita Shiraki ,  Takafumi Yamamoto

IPC分类号： B29C44/04 ,  B29C44/24 ,  B29C70/72 ,  B29C70/88 ,  B29D99/00 ,  B29K21/00 ,  B29K105/04 ,  F16C13/00 ,  G03G15/02 ,  G03G15/08 ,  G03G15/20

CPC分类号： B29C44/24 ,  B29C44/0461 ,  B29C70/72 ,  B29C70/882 ,  B29D99/0035 ,  G03G15/0233 ,  G03G15/0818 ,  B29L2031/32 ,  B29L2031/324 ,  G03G2215/0861 ,  G03G2215/0863

摘要： A conductive roll including a conductive shaft, a conductive rubber foam layer formed on an outer circumferential surface of the conductive shaft, and a semi-conductive solid rubber layer formed on an outer circumferential surface of the conductive rubber foam layer. The conductive roll is produced by forming a cylindrical laminar body which gives the conductive rubber foam layer and semi-conductive solid rubber layer, and simultaneously vulcanizing and foaming the laminar body in a mold in which the conductive shaft is placed in position.

摘要翻译： 包括导电轴的导电辊，形成在导电轴的外圆周表面上的导电橡胶泡沫层和形成在导电橡胶泡沫层的外圆周表面上的半导体固体橡胶层。 通过形成导电橡胶发泡层和半导体固体橡胶层的圆柱形层状体，同时在导电轴被放置就位的模具中同时硫化和发泡层状体来制造导电性辊。

公开(公告)号：US4923178A

公开(公告)日：1990-05-08

申请号：US364606

申请日：1989-06-12

申请人： Nobuo Matsumoto ,  Keita Shiraki ,  Yoshiki Funahashi

发明人： Nobuo Matsumoto ,  Keita Shiraki ,  Yoshiki Funahashi

IPC分类号： B60G7/04 ,  B60K5/12 ,  F16F13/00 ,  F16F13/14 ,  F16M7/00

CPC分类号： F16F13/14

摘要： A fluid-filled cylindrical elastic mount including an inner and an outer sleeve; an elastic body interposed between the inner and outer sleeves; a rigid sleeve disposed over at least an outer circumferential surface of opposite axial end portions of the elastic body; a pressure-receiving chamber provided between the inner and outer sleeves, filled with a non-compressible fluid, and receiving a vibrational load to be damped; an equilibrium chamber provided between the inner and outer sleeves, filled with the fluid, and at least partially defined by a flexible wall; a restricted passage for restricted fluid communication between the pressure-receiving and equilibrium chambers; a recess-defining member disposed between the inner and outer sleeves, for defining a radially outwardly opening recess, the outer sleeve covering the recess to provide a space of a predetermined volume; and an elastic sleeve for fluid-tight sealing between the outer and rigid sleeves. A portion of the elastic sleeve which is aligned with the space, is spaced apart from the outer sleeve so as to provide a flexible diaphragm in the space, the flexible diaphragm serves as the flexible wall, and the equilibrium chamber is provided in the space. The rigid sleeve and the recess-defining member may be constituted by a single generally cylindrical member.

摘要翻译： 一种流体填充的圆柱形弹性支架，包括内套筒和外套筒; 插入在所述内套筒和所述外套筒之间的弹性体; 刚性套筒，设置在所述弹性体的相对的轴向端部的至少外周面上; 设置在所述内套筒和所述外套筒之间的受压室，填充有不可压缩流体，并且接收要阻尼的振动载荷; 设置在内套筒和外套筒之间的平衡室，填充有流体，并且至少部分地由柔性壁限定; 用于受压和平衡室之间限制流体连通的限制通道; 设置在所述内套筒和所述外套筒之间的凹部限定构件，用于限定径向向外的开口凹部，所述外套筒覆盖所述凹部以提供预定体积的空间; 以及用于在外套筒和刚性套筒之间进行流体密封的弹性套筒。 与空间对准的弹性套筒的一部分与外套筒间隔开，以便在空间中提供柔性隔膜，柔性隔膜用作柔性壁，平衡室设置在该空间中。 刚性套筒和凹口限定构件可以由单个大致圆柱形构件构成。