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    Hollow stepped shaft and method of forming the same
    3.
    发明申请
    Hollow stepped shaft and method of forming the same 失效
    空心阶梯轴及其形成方法

    公开(公告)号：US20050016246A1

    公开(公告)日：2005-01-27

    申请号：US10803231

    申请日：2004-03-17

    申请人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    发明人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    IPC分类号： B21C23/20 ,  B21C37/16 ,  B21J5/06 ,  B21J5/08 ,  B21J5/10 ,  B21J9/08 ,  B21K1/06 ,  B21K1/12 ,  B21J13/00

    CPC分类号： B21J1/025 ,  B21C23/205 ,  B21C37/16 ,  B21J5/02 ,  B21J5/08 ,  B21J5/10 ,  B21K1/06 ,  B21K1/12

    摘要： A hollow stepped article is formed from a solid blank to reduce the material cost, and cracking is prevented in a stepped portion of large diameter when a portion of the blank is deformed by its radial expansion. A hollow stepped shaft is formed by holding an upper and a lower part axially of a solid rod-like blank with an upper and a lower die, respectively, which have a stepped recess of large diameter in a region where they are opposed to each other; compressing the blank from both its axially opposite sides with an upper and a lower punch each of which is smaller in diameter than the blank, thereby extruding the blank so that an axial hollow is formed therein about its axis in each of its upper and lower parts and that a portion of the blank opposed to the stepped recess of large diameter expands in diameter and deforms into that recess while leaving a solid plug-like portion between the punches; and thereafter further compressively moving one of the punches to shear the solid plug-like portion and force it out of the blank, whereby the blank is formed with a stepped portion of large diameter by radially expanding deformation in a region intermediate between its opposed ends or at one of these ends and with a continuous axial hollow about its axis.

    摘要翻译： 由实心坯料形成中空阶梯制品，以减少材料成本，并且当坯料的一部分通过其径向膨胀变形时，可以防止在大直径的阶梯部分中的开裂。 通过在具有上模和下模的实心棒状坯料的轴向保持上下两部分而形成中空阶梯轴，所述上模和下模分别具有彼此相对的区域中的大直径的阶梯形凹部 ; 通过上下冲头将坯料从其两个轴向相对的两侧压缩，每个上冲头和下冲头的直径小于坯件直径，从而挤压坯件，使得在其上部和下部各自的轴上形成轴向中空 并且与大直径的阶梯式凹槽相对的坯料的一部分直径扩大并变形成该凹槽，同时在冲头之间留下固体塞状部分; 然后进一步压缩移动其中一个冲头以剪切固体塞状部分并将其压出坯料，由此坯料通过在其相对端之间的区域中径向膨胀变形而形成有大直径的阶梯部分，或 在其中一个端部处并且围绕其轴线具有连续的轴向中空。

    Electromagnetic coupling
    4.
    发明授权
    Electromagnetic coupling 失效
    电磁耦合

    公开(公告)号：US07172059B2

    公开(公告)日：2007-02-06

    申请号：US10822207

    申请日：2004-04-08

    申请人： Shigeaki Yamanaka ,  Masahiro Dohi

    发明人： Shigeaki Yamanaka ,  Masahiro Dohi

    IPC分类号： F16D47/00 ,  F16D27/00

    CPC分类号： F16D28/00 ,  F16D27/004 ,  F16D27/115 ,  F16D27/14

    摘要： Disclosed is an electromagnetic coupling designed to strengthen the magnetic force exerted from an electromagnetic coil in the direction in which a pilot clutch is operated. In the electromagnetic coupling with the pilot clutch for activating a main clutch wherein clutch plates are thrust with a retaining ring moved by magnetic force produced by an electromagnetic coil in the pilot clutch, the electromagnetic coil in the pilot clutch is surrounded with ferromagnetic material over at least two of its three facial sides other than its magnetic force exerting facial side, namely over at least its rear and outer facial sides and the ferromagnetic material is covered with nonmagnetic material.

    摘要翻译： 公开了一种电磁耦合，其被设计成加强从电磁线圈施加的先导离合器操作方向的磁力。 在与用于启动主离合器的先导离合器的电磁耦合中，其中离合器片被推动，其中由通过先导离合器中的电磁线圈产生的磁力而移动的保持环，先导离合器中的电磁线圈被铁磁材料包围， 其三个面部中的至少两个除了其施加面部侧面的磁力之外，即至少其后面和外侧面以及铁磁材料被非磁性材料覆盖。

    Method of joining together magnetic and nonmagnetic materials
    5.
    发明授权
    Method of joining together magnetic and nonmagnetic materials 失效
    将磁性和非磁性材料接合在一起的方法

    公开(公告)号：US07015434B2

    公开(公告)日：2006-03-21

    申请号：US10817526

    申请日：2004-04-01

    申请人： Shigeaki Yamanaka ,  Masahiro Dohi

    发明人： Shigeaki Yamanaka ,  Masahiro Dohi

    IPC分类号： B23K13/01

    CPC分类号： B23K20/12 ,  B23K20/122 ,  B23K20/16 ,  B23K20/2275

    摘要： A method whereby magnetic and nonmagnetic materials can be joined together firmly and having their joining areas freed from embrittlement and with a minimum of deformation is disclosed. Applied to the process of fitting a ring of nonmagnetic material into an annular space formed between an inner and an outer member each made of magnetic material, the method includes bringing an inner and an outer peripheral surface of the ring of nonmagnetic material each into a semi-molten state and bringing the inner and outer peripheral surfaces of the ring of nonmagnetic material into pressure contact with the inner and outer members, respectively, to join the inner and outer peripheral surfaces to the inner and outer members, respectively, by interfacial fusion.

    摘要翻译： 公开了一种可以将磁性和非磁性材料牢固地结合在一起并且使它们的接合区域没有脆化和最小变形的方法。 适用于将非磁性材料环安装在由磁性材料制成的内部和外部构件之间形成的环形空间的过程中，该方法包括使非磁性材料环的内外表面各自形成半 并且使非磁性材料环的内周面和外周面分别与内部和外部构件压力接触，以通过界面融合分别将内外周表面连接到内部和外部构件。

    Hollow stepped shaft and method of forming the same
    7.
    发明申请
    Hollow stepped shaft and method of forming the same 有权
    空心阶梯轴及其形成方法

    公开(公告)号：US20070068215A1

    公开(公告)日：2007-03-29

    申请号：US11605568

    申请日：2006-11-29

    申请人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    发明人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    IPC分类号： B21J13/00

    CPC分类号： B21J1/025 ,  B21C23/205 ,  B21C37/16 ,  B21J5/02 ,  B21J5/08 ,  B21J5/10 ,  B21K1/06 ,  B21K1/12

    摘要： A hollow stepped article is formed from a solid blank to reduce the material cost, and cracking is prevented in a stepped portion of large diameter when a portion of the blank is deformed by its radial expansion. A hollow stepped shaft is formed by holding an upper and a lower part axially of a solid rod-like blank with an upper and a lower die, respectively, which have a stepped recess of large diameter in a region where they are opposed to each other; compressing the blank from both its axially opposite sides with an upper and a lower punch each of which is smaller in diameter than the blank, thereby extruding the blank so that an axial hollow is formed therein about its axis in each of its upper and lower parts and that a portion of the blank opposed to the stepped recess of large diameter expands in diameter and deforms into that recess while leaving a solid plug-like portion between the punches; and thereafter further compressively moving one of the punches to shear the solid plug-like portion and force it out of the blank, whereby the blank is formed with a stepped portion of large diameter by radially expanding deformation in a region intermediate between its opposed ends or at one of these ends and with a continuous axial hollow about its axis.

    摘要翻译： 由实心坯料形成中空阶梯制品，以减少材料成本，并且当坯料的一部分通过其径向膨胀变形时，可以防止在大直径的阶梯部分中的开裂。 通过在具有上模和下模的实心棒状坯料的轴向保持上下两部分而形成中空阶梯轴，所述上模和下模分别具有彼此相对的区域中的大直径的阶梯形凹部 ; 通过上下冲头将坯料从其两个轴向相对的两侧压缩，每个上冲头和下冲头的直径小于坯件直径，从而挤压坯件，使得在其上部和下部各自的轴上形成轴向中空 并且与大直径的阶梯式凹槽相对的坯料的一部分直径扩大并变形成该凹槽，同时在冲头之间留下固体塞状部分; 然后进一步压缩移动其中一个冲头以剪切固体塞状部分并将其压出坯料，由此坯料通过在其相对端之间的区域中径向膨胀变形而形成有大直径的阶梯部分，或 在其中一个端部处并且围绕其轴线具有连续的轴向中空。

    Hollow stepped shaft and method of forming the same
    8.
    发明授权
    Hollow stepped shaft and method of forming the same 失效

    公开(公告)号：US07171837B2

    公开(公告)日：2007-02-06

    申请号：US10803231

    申请日：2004-03-17

    申请人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    发明人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    IPC分类号： B21D28/00

    CPC分类号： B21J1/025 ,  B21C23/205 ,  B21C37/16 ,  B21J5/02 ,  B21J5/08 ,  B21J5/10 ,  B21K1/06 ,  B21K1/12

    摘要： A hollow stepped article is formed from a solid blank to reduce the material cost, and cracking is prevented in a stepped portion of large diameter when a portion of the blank is deformed by its radial expansion. A hollow stepped shaft is formed by holding an upper and a lower part axially of a solid rod-like blank with an upper and a lower die, respectively, which have a stepped recess of large diameter in a region where they are opposed to each other; compressing the blank from both its axially opposite sides with an upper and a lower punch each of which is smaller in diameter than the blank, thereby extruding the blank so that an axial hollow is formed therein about its axis in each of its upper and lower parts and that a portion of the blank opposed to the stepped recess of large diameter expands in diameter and deforms into that recess while leaving a solid plug-like portion between the punches; and thereafter further compressively moving one of the punches to shear the solid plug-like portion and force it out of the blank, whereby the blank is formed with a stepped portion of large diameter by radially expanding deformation in a region intermediate between its opposed ends or at one of these ends and with a continuous axial hollow about its axis.

    Headphone including means for mounting belt-like suspender
    9.
    发明授权
    Headphone including means for mounting belt-like suspender 失效
    耳机包括用于安装带状悬挂器的装置

    公开(公告)号：US5406037A

    公开(公告)日：1995-04-11

    申请号：US187059

    申请日：1994-01-27

    申请人： Koji Nageno ,  Masahiro Dohi

    发明人： Koji Nageno ,  Masahiro Dohi

    IPC分类号： H04R1/10 ,  H04R25/00

    CPC分类号： H04R5/0335 ,  H04R1/1008

    摘要： A headphone includes a headband, at least one headphone unit, a belt-like member and a wind-in mechanism. The headband is made from an elastically deformable material and is of an inverted U-shape. At least one headphone unit is mounted at one of the ends of the headband. When the headphone is fit onto the head a belt-like member is drawn out of the wind-in mechanism and assumes a shape that follows the shape of the head. The belt-like member is mounted in such a way that it stretches between the two ends of the headband. The wind-in mechanism automatically winds in the drawn-out belt-like member. The wind-in mechanism is mounted at a part of the headphone where one end of the belt-like member, one end of the headband and a headphone unit are joined.

    摘要翻译： 耳机包括头带，至少一个耳机单元，带状构件和收入机构。 头带由可弹性变形材料制成，呈倒U形。 至少一个耳机单元安装在头带的一端。 当耳机装配在头部上时，带状构件被拉出风入机构并且呈现跟随头部形状的形状。 带状构件以这样的方式安装，使得其在头带的两端之间延伸。 卷入机构自动地卷绕在拉出的带状构件中。 吸入机构安装在耳机的一部分，其中带状构件的一端，头带的一端和耳机单元接合。

    HOLLOW STEPPED SHAFT AND METHOD OF FORMING THE SAME
    10.
    发明申请
    HOLLOW STEPPED SHAFT AND METHOD OF FORMING THE SAME 审中-公开
    中空台阶轴及其形成方法

    公开(公告)号：US20080127704A1

    公开(公告)日：2008-06-05

    申请号：US12024065

    申请日：2008-01-31

    申请人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    发明人： Shigeaki Yamanaka ,  Takeshi Kazama ,  Masahiro Dohi

    IPC分类号： B21D17/02 ,  B21J13/00

    CPC分类号： B21J1/025 ,  B21C23/205 ,  B21C37/16 ,  B21J5/02 ,  B21J5/08 ,  B21J5/10 ,  B21K1/06 ,  B21K1/12

    摘要： A hollow stepped article is formed from a solid blank to reduce the material cost, and cracking is prevented in a stepped portion of large diameter when a portion of the blank is de-formed by its radial expansion. A hollow, stepped shaft is formed by holding an upper and a lower part axially of a solid rod-like blank with an upper and a lower die, respectively, which have a stepped recess of large diameter in a region where they are op-posed to each other; compressing the blank from both its axially opposite sides with an upper and a lower punch each of which is smaller in diameter than the blank, thereby extruding the blank so that an axial hollow is formed therein about its axis in each of its upper and lower parts and that a portion of the blank op-posed to the stepped recess of large diameter expands in diameter and deforms into that recess while leaving a solid plug-like portion between the punches; and thereafter further compressively moving one of the punches to shear the solid plug-like portion and force it out of the blank, whereby the blank is formed with a stepped portion of large diameter by radially expanding deformation in a region intermediate between its op-posed ends or at one of these ends and with a continuous axial hollow about its axis.

    摘要翻译： 中空阶梯制品由实心坯料形成，以降低材料成本，并且当坯料的一部分通过其径向膨胀而形成时，在大直径的阶梯部分中防止开裂。 通过在具有上模和下模的实心棒状坯料的轴向上保持上部和下部部分而形成中空的阶梯轴，所述上模具和下模具在其所处的区域中分别具有大直径的阶梯形凹部 对彼此; 通过上下冲头将坯料从其两个轴向相对的两侧压缩，每个上冲头和下冲头的直径小于坯件直径，从而挤压坯件，使得在其上部和下部各自的轴上形成轴向中空 并且与大直径的阶梯式凹槽相对的坯料的一部分直径扩大并变形成该凹槽，同时在冲头之间留下固体塞状部分; 然后进一步压缩移动其中一个冲头以剪切固体塞状部分并将其压出坯料，由此坯料通过径向膨胀变形形成具有大直径的阶梯部分 端部或其中一个端部并且围绕其轴线具有连续的轴向中空。