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1. 发明授权

US6024346A Coil spring resistant to permanent set and fatigue 失效
标题翻译：线圈弹簧抗永久变形和疲劳
公开(公告)号：US6024346A
公开(公告)日：2000-02-15
申请号：US17396
申请日：1998-02-02
申请人： Takeshi Yabushita , Noritoshi Takamura , Mitsutoshi Kaneyasu , Michihiko Ayada
发明人： Takeshi Yabushita , Noritoshi Takamura , Mitsutoshi Kaneyasu , Michihiko Ayada
IPC分类号： C23C8/26 , C23C8/32 , F16F1/02 , F16F1/04 , F16F1/06 , C23C8/22
CPC分类号： C23C8/32 , F16F1/021 , F16F1/04 , F16F2228/007
摘要： By controlling the thickness of the nitrization layer formed on the surface, the coil spring made of spring steel may be made highly resistant to permanent set and fatigue. By carbonitriding the material of the coil spring to a depth of 20 to 50 .mu.m from the surface thereof so as to have an internal hardness of Hv 540 or higher, the coil spring can be made to endure 10.sup.7 cycles of repeated high stress without suffering any significant permanent set.
摘要翻译：通过控制形成在表面上的氮化层的厚度，可以使由弹簧钢制成的螺旋弹簧具有高耐久性和耐久性。通过将螺旋弹簧的材料从其表面碳氮共渗到20至50μm的深度以具有Hv 540或更高的内部硬度，可以使螺旋弹簧耐受107次重复的高应力而不遭受痛苦任何重要的永久性集合。

2. 发明授权

US08876095B2 Coil spring 有权
标题翻译：线圈弹簧
公开(公告)号：US08876095B2
公开(公告)日：2014-11-04
申请号：US13388247
申请日：2010-04-26
申请人： Nobuharu Kato , Hirotaka Yamada , Jinetsu Kano , Takeshi Yabushita
发明人： Nobuharu Kato , Hirotaka Yamada , Jinetsu Kano , Takeshi Yabushita
IPC分类号： F16F1/06 , F16F1/04
CPC分类号： F16F1/042 , F16F1/04
摘要： A coil spring has a spring wire that is wound in a coil shape and whose sectional outer basic shape is circular and flat faces are formed between coil inner and outer diameter sections of a sectional outer shape of the spring wire, wherein a flattening T/W of the sectional outer shape with the flat faces in the coil axis direction is set so that a stress ratio is equal to or lower than a stress ratio of a coil spring whose sectional outer shape is circular.
摘要翻译：螺旋弹簧具有卷绕成线圈形状的弹簧线，其截面外基本形状为圆形，并且在弹簧线的外截面外形的线圈内外径部分之间形成平坦面，其中平坦化T / W 的平坦面在线圈轴方向上的截面外形被设定为应力比等于或小于截面外形为圆形的螺旋弹簧的应力比。

3. 发明授权

US08684342B2 Coil spring 有权
标题翻译：线圈弹簧
公开(公告)号：US08684342B2
公开(公告)日：2014-04-01
申请号：US12449123
申请日：2008-01-25
申请人： Daniel Fenioux , Nobuharu Kato , Takeshi Yabushita
发明人： Daniel Fenioux , Nobuharu Kato , Takeshi Yabushita
IPC分类号： F16F1/08
CPC分类号： F16F1/042 , F16H45/02
摘要： A coil spring has a spring wire wound in a coil shape having an outer diameter side portion and an inner diameter side portion on a peripheral shape in a cross section thereof, one of the outer diameter side portion and inner diameter side portion formed in a semi-circular shape expressed by x2+y2=b2, the other thereof formed in a non-circular shape with a long diameter “a” and a short diameter “b” expressed by (x/a)α+(y/b)α=1, and value of the “α” set in a range of 1.85 to 2.45, and contact faces provided between the inner diameter side portion and the outer diameter side portion on the peripheral shape in the cross section such that each contact face comes into contact with a contact face of an adjacent coil in an axial direction along an axis line of the coil spring.
摘要翻译：螺旋弹簧具有卷绕成线圈状的弹簧线，其外径侧部分和内径侧部分的截面为周边形状，外径侧部分和内径侧部分中的一个形成为半由x2 + y2 = b2表示的圆弧形状，另一方形成为由（x / a）α+（y / b）α表示的长径“a”和短径“b”的非圆形 = 1，“α”的值设定在1.85〜2.45的范围内，以及设置在截面上的周边形状的内径侧部分和外径侧部分之间的接触面，使得每个接触面进入沿着螺旋弹簧的轴线在轴向方向上与相邻线圈的接触面接触。

4. 发明授权

US08025039B2 Valve spring device and valve train of internal combustion engine using the same 有权
标题翻译：内燃机的气门弹簧装置和气门机构使用
公开(公告)号：US08025039B2
公开(公告)日：2011-09-27
申请号：US12539871
申请日：2009-08-12
申请人： Kazuo Iwata , Noritoshi Takamura , Jun Tominaga , Norihiro Tajima , Takeshi Yabushita
发明人： Kazuo Iwata , Noritoshi Takamura , Jun Tominaga , Norihiro Tajima , Takeshi Yabushita
IPC分类号： F01L3/10
CPC分类号： F01L1/462 , F01L1/0532 , F01L1/143 , F01L1/185 , F01L1/267 , F01L3/10 , F01L13/0036 , F01L2810/03 , F01L2820/02
摘要： A port is formed in a cylinder head of an engine. The port is opened and closed by a valve. A valve spring device is provided with a first spring and a second spring. The second spring is contained in a housing and held by a stopper in a manner such that it is compressed along an axis or subjected to a preload. The preload of the second spring is larger than an installation load of the first spring. An axial load acts on the springs. The valve spring device has load-deflection characteristics such that only the first spring deforms axially when the axial load is not larger than a predetermined value and that both the first and second springs deform axially when the axial is load exceeds the predetermined value.
摘要翻译：端口形成在发动机的气缸盖中。端口由阀门打开和关闭。阀弹簧装置设置有第一弹簧和第二弹簧。第二弹簧被容纳在壳体中并且由止动件以使得其沿轴线被压缩或经受预载的方式保持。第二弹簧的预载大于第一弹簧的安装负载。轴向载荷作用在弹簧上。阀弹簧装置具有负载偏转特性，使得当轴向载荷不大于预定值时，只有第一弹簧轴向变形，并且当轴向载荷超过预定值时，第一弹簧和第二弹簧都将轴向变形。

5. 发明申请

US20100090384A1 COIL SPRING 有权
标题翻译：线圈弹簧
公开(公告)号：US20100090384A1
公开(公告)日：2010-04-15
申请号：US12449123
申请日：2008-01-25
申请人： Daniel Fenioux , Nobuharu Kato , Takeshi Yabushita
发明人： Daniel Fenioux , Nobuharu Kato , Takeshi Yabushita
IPC分类号： F16F1/06
CPC分类号： F16F1/042 , F16H45/02
摘要： A coil spring has a spring wire wound in a coil shape having an outer diameter side portion and an inner diameter side portion on a peripheral shape in a cross section thereof, one of the outer diameter side portion and inner diameter side portion formed in a semi-circular shape expressed by x2+y2=b2, the other thereof formed in a non-circular shape with a long diameter “a” and a short diameter “b” expressed by (x/a)α+(y/b)α=1, and value of the “α” set in a range of 1.85 to 2.45, and contact faces provided between the inner diameter side portion and the outer diameter side portion on the peripheral shape in the cross section such that each contact face comes into contact with a contact face of an adjacent coil in an axial direction along an axis line of the coil spring.
摘要翻译：螺旋弹簧具有卷绕成线圈状的弹簧线，其外径侧部分和内径侧部分的截面为周边形状，外径侧部分和内径侧部分中的一个形成为半由x2 + y2 = b2表示的圆弧形状，另一方形成为由（x / a）α+（y / b）α表示的长径“a”和短径“b”的非圆形 = 1，“α”的值设定在1.85〜2.45的范围内，以及设置在截面上的周边形状的内径侧部分和外径侧部分之间的接触面，使得每个接触面进入沿着螺旋弹簧的轴线在轴向方向上与相邻线圈的接触面接触。

6. 发明申请

US20090293827A1 VALVE SPRING DEVICE AND VALVE TRAIN OF INTERNAL COMBUSTION ENGINE USING THE SAME 有权
标题翻译：内燃机的阀弹簧装置和阀门火花筒
公开(公告)号：US20090293827A1
公开(公告)日：2009-12-03
申请号：US12539871
申请日：2009-08-12
申请人： Kazuo IWATA , Noritoshi Takamura , Jun Tominaga , Norihiro Tajima , Takeshi Yabushita
发明人： Kazuo IWATA , Noritoshi Takamura , Jun Tominaga , Norihiro Tajima , Takeshi Yabushita
IPC分类号： F01L3/10
CPC分类号： F01L1/462 , F01L1/0532 , F01L1/143 , F01L1/185 , F01L1/267 , F01L3/10 , F01L13/0036 , F01L2810/03 , F01L2820/02
摘要： A port is formed in a cylinder head of an engine. The port is opened and closed by a valve. A valve spring device is provided with a first spring and a second spring. The second spring is contained in a housing and held by a stopper in a manner such that it is compressed along an axis or subjected to a preload. The preload of the second spring is larger than an installation load of the first spring. An axial load acts on the springs. The valve spring device has load-deflection characteristics such that only the first spring deforms axially when the axial load is not larger than a predetermined value and that both the first and second springs deform axially when the axial is load exceeds the predetermined value.
摘要翻译：端口形成在发动机的气缸盖中。端口由阀门打开和关闭。阀弹簧装置设置有第一弹簧和第二弹簧。第二弹簧被容纳在壳体中并且由止动件以使得其沿轴线被压缩或经受预载的方式保持。第二弹簧的预载大于第一弹簧的安装负载。轴向载荷作用在弹簧上。阀弹簧装置具有负载偏转特性，使得当轴向载荷不大于预定值时，只有第一弹簧轴向变形，并且当轴向负载超过预定值时，第一弹簧和第二弹簧都将轴向变形。

7. 发明申请

US20120193848A1 COIL SPRING 有权
标题翻译：线圈弹簧
公开(公告)号：US20120193848A1
公开(公告)日：2012-08-02
申请号：US13388247
申请日：2010-04-26
申请人： Nobuharu Kato , Hirotaka Yamada , Jinetsu Kano , Takeshi Yabushita
发明人： Nobuharu Kato , Hirotaka Yamada , Jinetsu Kano , Takeshi Yabushita
IPC分类号： F16F1/06
CPC分类号： F16F1/042 , F16F1/04
摘要： A stress distribution state is improved and a better design is realized.A coil spring 1 has a spring wire 3 that is wound in a coil shape and whose sectional outer basic shape is circular. Between coil inner and outer diameter sections 5 and 7 of a sectional outer shape of the spring wire 3, flat faces 9 and 11 are formed so that coil portions adjacent to each other in the direction of a coil axis 4 are stabilized when they are brought into contact with each other. A flattening T/W of the sectional outer shape with the flat faces 9 and 11 in the coil axis direction is set so that a stress ratio is equal to or lower than a stress ratio of a coil spring whose sectional outer shape is circular. The flat faces 9 and 11 stably receive load and shorten a solid length in a tightly compressed state. This is advantageous in designing a spring having a longer stroke and lower rigidity. Better stress distribution in a circumferential direction of the sectional circumferential shape improves the uniformity of stress distribution.
摘要翻译：应力分布状态得到改善，实现了更好的设计。螺旋弹簧1具有缠绕成线圈形状并且其截面外基本形状为圆形的弹簧丝3。在弹簧丝3的截面外形的线圈内外径部分5和7之间，形成平面9和11，使得在线圈轴线4的方向上彼此相邻的线圈部分被固定时彼此接触。平面9和11在线圈轴方向上的截面外形的扁平T / W被设定为应力比等于或小于截面外形为圆形的螺旋弹簧的应力比。平面9和11稳定地承受负载，并在紧压缩状态下缩短固体长度。这在设计具有较长行程和较低刚度的弹簧方面是有利的。在圆周方向圆周方向上的应力分布更好，提高了应力分布的均匀性。

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