公开(公告)号：US20160047453A1

公开(公告)日：2016-02-18

申请号：US14784068

申请日：2014-04-15

申请人： ENPLAS CORPORATION

发明人： Kenji OHMI ,  Toru MURAKAMI ,  Masaya TSUKAMOTO

IPC分类号： F16H55/06 ,  B29C45/00 ,  F16H55/17

CPC分类号： F16H55/06 ,  B29C45/0005 ,  B29K2105/12 ,  B29K2309/08 ,  B29L2015/00 ,  B29L2031/775 ,  C08J5/043 ,  F16H55/17 ,  F16H2055/065

摘要： Provided is a fiber reinforced resin gear whose durability in use under a high temperature is enhanced. A fiber reinforced resin gear is formed by injecting a resin material containing glass wool into the inside of a cavity of a mold. A fiber diameter of the glass wool is scattered in a wide range of 0.1 to 15 μm, and is distributed such that a most frequent value of the fiber diameter appears within a range of 2 to 5 μm, and an average fiber diameter of the glass wool falls within a range of 3 to 5 μm. The fiber reinforced resin gear according to the present invention can enhance durability and abrasion resistance under a high temperature compared to a conventional fiber reinforced resin gear.

摘要翻译： 提供一种纤维增强树脂齿轮，其在高温下的使用寿命得到提高。 纤维增强树脂齿轮通过将含有玻璃棉的树脂材料注入模具的腔体内而形成。 玻璃棉的纤维直径在0.1〜15μm的宽范围内分散，分布成纤维直径的最大值出现在2〜5μm的范围内，玻璃的平均纤维直径 羊毛落在3到5微米的范围内。 根据本发明的纤维增强树脂齿轮与常规的纤维增强树脂齿轮相比可以在高温下提高耐久性和耐磨性。

公开(公告)号：US20140090503A1

公开(公告)日：2014-04-03

申请号：US14033179

申请日：2013-09-20

申请人： ENPLAS CORPORATION

发明人： Kenji OHMI

IPC分类号： B23F17/00 ,  F16H55/08

CPC分类号： B23F17/005 ,  F16H55/0806 ,  Y10T74/1987 ,  Y10T409/101431

摘要： A gear includes teeth 3 to be engaged with teeth of a corresponding gear to transmit a rotational motion, in which a form (b) of a tooth root side of each tooth 3 includes: a first curved surface c which smoothly connects with a tooth surface a having an involute curve and has a profile represented by a curve which is convex in a direction opposite to the involute curve of the tooth surface a; and a second curved surface d which smoothly connects with the first curved surface c and has a profile defined by a quadratic function having a curve being convex in the same direction as that of the first curved surface c. Therefore, a stress generated on the tooth root side at the time of engagement with the teeth of the corresponding gear can be reduced, and the strength of the teeth can be increased.

摘要翻译： 齿轮包括与相应齿轮的齿接合以传递旋转运动的齿3，其中每个齿3的齿根侧的形状（b）包括：平滑地与齿面连接的第一弯曲表面c a具有渐开线曲线并且具有由与所述齿面a的渐开线曲线相反的方向凸出的曲线表示的轮廓; 以及与第一弯曲表面c平滑地连接的第二弯曲表面d，并且具有由具有与第一曲面c相同的方向凸出的曲线的二次函数限定的轮廓。 因此，能够减少与齿轮的齿啮合时在齿根侧产生的应力，能够提高齿的强度。

公开(公告)号：US20180274649A1

公开(公告)日：2018-09-27

申请号：US15764074

申请日：2016-07-26

申请人： ENPLAS CORPORATION

发明人： Kenji OHMI

IPC分类号： F16H55/08 ,  F16H55/06

摘要： A plastic helical gear has a three-dimensional tooth surface modification section on a tooth surface of each of involute-shaped teeth. The three-dimensional tooth surface modification section is a combined surface of a tooth top modification surface and an arc crowning surface. The tooth top modification surface is gradually reduced in tooth thickness from a position between a tooth top and a tooth root toward the tooth top. The arc crowning surface is gradually reduced in tooth thickness from a position between one end in the tooth width direction and the other end in the tooth width direction toward both ends in the tooth width direction. A line extending from an intersection point P0 between the starting position of the tooth top modification surface and the apex position of the arc crowning surface to the tooth root is aligned with a line on the tooth surface of the involute-shaped tooth.

公开(公告)号：US20170335942A1

公开(公告)日：2017-11-23

申请号：US15532773

申请日：2015-11-20

申请人： ENPLAS CORPORATION

发明人： Kenji OHMI

IPC分类号： F16H55/08 ,  F16H55/17 ,  F16H55/06

摘要： A resin helical gear is formed by setting a first machining reference line obliquely coupling a tooth tip side of a first tooth to a tooth root side of a second tooth on another end side in the tooth width direction along a tooth surface, and a second machining reference line obliquely coupling a tooth tip side of the second tooth to a tooth root side of the first tooth along the tooth surface. Then, the tooth surface is cut out from the first machining reference line to the tooth root of the first tooth while the tooth surface is cut out from the second machining reference line to the tooth root of the second tooth. Then, an involute tooth profile form is left on a tooth tip side of the tooth with respect to the first machining reference line and the second machining reference line.

公开(公告)号：US20180066744A1

公开(公告)日：2018-03-08

申请号：US15810967

申请日：2017-11-13

申请人： ENPLAS CORPORATION

发明人： Kenji OHMI

IPC分类号： F16H55/08 ,  B23F5/26

CPC分类号： F16H55/0806 ,  B23F5/26 ,  Y10T74/19949 ,  Y10T409/105883

摘要： A gear including plural teeth 3 to mesh with teeth of a corresponding gear to thereby transmit a rotational motion is provided. A form (b) of a tooth root side of each tooth 3 includes: a first curved surface c that is smoothly connected to a tooth surface a having an involute curve and has a profile expressed by a curve that is convex in an inverse direction of the involute curve of the tooth surface a; and a second curved surface d that is smoothly connected to the first curved surface c and has a profile defined by a hyperbolic function having a curve being convex in the same direction as the first curved surface c. It is possible to reduce a stress generated on the tooth root side at the time of meshing with teeth of the corresponding gear and thus to increase the strength of the teeth.