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1. 发明授权

US6068568A Silent chain 失效
标题翻译：静音链
公开(公告)号：US6068568A
公开(公告)日：2000-05-30
申请号：US975152
申请日：1997-11-20
申请人： Nobuto Kozakura , Toyonaga Saito , Tsutomu Haginoya , Takero Nakagawa
发明人： Nobuto Kozakura , Toyonaga Saito , Tsutomu Haginoya , Takero Nakagawa
IPC分类号： F16G13/06 , B21L9/08 , B21L15/00 , C22C38/00 , C23C8/22 , C23C8/32 , F16G13/04 , B21L3/04
CPC分类号： C21D9/0087 , B21L15/00 , B21L9/04 , B21L9/08 , F16G13/04 , C21D1/46 , C21D2211/004
摘要： A silent chain is provided which has reduced elongation based on wear and which is capable of maintaining a high accuracy over a long period of time in use. The inner surfaces of pin holes formed in at least joint trains of plates have been subjected to shaving, and a hard layer of at least one hard metal carbide selected from a group including CrC, TiC, VC and NbC, is formed on the surface of each pin. By shaving the inner surface of each pin hole, the surface pressure applied between the pin hole inner surface and the pin inserted therein becomes lower, whereby the wear of the pin and the pin hole is diminished. Further, since the hard layer on the pin surface is very hard and is chemically stable, the affinity of each plate for the inner surface of each pin hole formed therein is small. Thus, even under the condition of boundary lubrication, it is difficult for adhesion to occur between the pin hole inner surface and the pin inserted therein. Consequently, the amount of pin wear is lessened so that it becomes possible to minimize the elongation of the chain based on wear.
摘要翻译：提供了一种基于磨损降低伸长率并且能够在长时间内保持高精度的无声链条。形成在板的至少接合列中的销孔的内表面经受刮削，并且在表面上形成选自包括CrC，TiC，VC和NbC的组中的至少一种硬质合金碳化物的硬质层每个针。通过剃刮每个销孔的内表面，施加在销孔内表面和插入其中的销之间的表面压力变低，由此销和销孔的磨损减小。此外，由于销表面上的硬层非常硬并且化学稳定，因此每个板对于其中形成的每个销孔的内表面的亲合力小。因此，即使在边界润滑的条件下，也难以在销孔内表面和插入其中的销之间发生粘合。因此，销磨损量减少，从而可以使链条的基于磨损的伸长率最小化。

2. 发明授权

US5697206A Rolled part for chain and manufacturing method therefor 失效
标题翻译：轧制部件为链条及其制造方法
公开(公告)号：US5697206A
公开(公告)日：1997-12-16
申请号：US595997
申请日：1996-02-06
申请人： Tomofumi Otani , Sachihiko Maeda , Shuji Sasamoto , Masaharu Tamaki , Takero Nakagawa , Yoshitaka Yoshimura , Hiroshi Kobayashi
发明人： Tomofumi Otani , Sachihiko Maeda , Shuji Sasamoto , Masaharu Tamaki , Takero Nakagawa , Yoshitaka Yoshimura , Hiroshi Kobayashi
IPC分类号： B21D3/14 , B21L9/00 , F16C13/00 , F16G13/06 , B21L9/02
CPC分类号： F16G13/06 , F16C13/006 , Y10T29/49702
摘要： The present invention improves accuracy in the axial dimension of rolled parts for a chain such as bushings, rollers and similar. A rolled part is manufactured by cutting a strip of steel into a rectangular shape to obtain a rectangular base material having a predetermined dimension, The rectangular base material is rolled into a clindrical shape to obtain a cylindrically formed part having cut end surfaces face each other. A core is inserted for rolling the rectangular base material into the cylindrically formed part. The cylindrically formed part is then pressed through a die having a circular opening. The rolled part has a plurality of blind grooves on a surface thereof. While the cylindrically formed part is being pressed through the die having a circular opening, a plastic flow of the material of the cylindrically formed part intensively occurs in a direction toward the blind grooves. Since the plastic deformation of the rolled part is absorbed by the blind grooves, axial dimension of the rolled part hardly varies,
摘要翻译：本发明提高了诸如衬套，辊等的链条的轧制部件的轴向尺寸的精度。通过将钢带切割成矩形形状来制造轧制部件，以获得具有预定尺寸的矩形基材。将矩形基材卷成圆柱形，以获得具有切割端面彼此面对的圆柱形部分。插入用于将矩形基材卷绕成圆筒形部件的芯体。然后将圆筒形的部件压入具有圆形开口的模具中。轧制部件在其表面上具有多个盲槽。当圆柱形部分被压入具有圆形开口的模具时，圆柱形成形部件的材料的塑性流动趋向于盲槽的方向。由于轧制部的塑性变形被盲槽吸收，所以轧制部的轴向尺寸几乎不变化，

3. 外观设计

USD373950S Link plate for a chain 失效
公开(公告)号：USD373950S
公开(公告)日：1996-09-24
申请号：US40262
申请日：1995-06-14
申请人： Tomofumi Otani , Joichi Nakamura , Takero Nakagawa , Shuji Sasamoto , Yoshitaka Yoshimura
设计人： Tomofumi Otani , Joichi Nakamura , Takero Nakagawa , Shuji Sasamoto , Yoshitaka Yoshimura

4. 发明授权

US5902203A Silent chain 失效
标题翻译：静音链
公开(公告)号：US5902203A
公开(公告)日：1999-05-11
申请号：US892392
申请日：1997-07-14
申请人： Makoto Kanehira , Takero Nakagawa , Yutaka Uchiumi , Masahiro Sato , Nobuyuki Fujimoto , Hitoshi Ohara , Masao Maruyama
发明人： Makoto Kanehira , Takero Nakagawa , Yutaka Uchiumi , Masahiro Sato , Nobuyuki Fujimoto , Hitoshi Ohara , Masao Maruyama
IPC分类号： F16G13/02 , F16G13/04 , F16G13/06
CPC分类号： F16G13/04
摘要： A silent chain is provided in which a plurality of link plates of a certin configuration may have an identification indicator marked on a reference surface thereof at the time connecting pin inserting holes are punched into the link plates in order to ensure the link plates are properly directed in the same direction, are superposed on the connecting pins, and are constituted in a chain-like manner by the connecting pins so that meshing surfaces of the link plates mesh smoothly to prevent any meshing noise.
摘要翻译：提供了一种无声链，其中，在连接销插入孔被冲压到链板中的时间，多个认证配置的链板可以具有标记在其参考表面上的识别指示器，以确保链板正确地定向在相同的方向上重叠在连接销上，并且通过连接销以链状的方式构成，使得链板的啮合表面平滑地啮合以防止任何啮合噪声。

5. 发明授权

US06077181A Plate for a silent chain having a protruding portion for reducing the noise generated when the plate engages a sprocket 失效
标题翻译：具有用于减小板接合链轮时产生的噪音的突出部分的无声链板
公开(公告)号：US06077181A
公开(公告)日：2000-06-20
申请号：US873728
申请日：1997-06-12
申请人： Makoto Kanehira , Takero Nakagawa , Masao Maruyama , Hitoshi Ohara , Nobuyuki Fujimoto , Masahiro Sato
发明人： Makoto Kanehira , Takero Nakagawa , Masao Maruyama , Hitoshi Ohara , Nobuyuki Fujimoto , Masahiro Sato
IPC分类号： F16G13/02 , F16G13/04 , F16G13/06
CPC分类号： F16G13/04
摘要： A silent chain has a plurality of interconnected plates adapted for operative engagement with toothed surfaces of a sprocket. Each of the plates has flank surface portions and crotch surface portions, with the crotch surface portions having protruding portions. The protruding portions of the crotch surface portions make contact with the toothed surfaces of the sprocket at the beginning of engagement of each plate with the sprocket and are spaced away from the toothed surfaces of the sprocket at least during engagement of the flank surface portions with toothed surfaces of the sprocket.
摘要翻译：无声链具有适于与链轮的齿形表面进行操作接合的多个互连的板。每个板具有侧面部分和裆部表面部分，裆部表面部分具有突出部分。裆部表面部分的突出部分在每个板与链轮接合开始时与链轮的齿形表面接触，并且至少在齿面部分与齿轮啮合时与链轮的齿形表面间隔开链轮的表面。

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