公开(公告)号：USD477206S1

公开(公告)日：2003-07-15

申请号：US29165829

申请日：2002-08-19

申请人： Masato Sakai ,  Akihisa Yahagi ,  Atsuyuki Kikuchi

设计人： Masato Sakai ,  Akihisa Yahagi ,  Atsuyuki Kikuchi

公开(公告)号：US6155356A

公开(公告)日：2000-12-05

申请号：US426635

申请日：1999-10-25

申请人： Atsuyuki Kikuchi ,  Sinki Ohtsu ,  Mutsuo Harada ,  Akihisa Yahagi

发明人： Atsuyuki Kikuchi ,  Sinki Ohtsu ,  Mutsuo Harada ,  Akihisa Yahagi

IPC分类号： B25D17/24 ,  B23B45/16 ,  B25D17/00 ,  B25D17/08 ,  B25D9/16

CPC分类号： B25D17/088 ,  B25D17/005 ,  B25D2216/0076 ,  B25D2217/0038 ,  B25D2250/355 ,  Y10T279/17051 ,  Y10T279/17094

摘要： A hammer holder, provided between a retainer sleeve and a cylinder, slidably holds an intermediate member in an axial direction. A predetermined clearance is maintained between the hammer holder and the retainer sleeve. The hammer holder has a recessed portion which is engageable with a flange of the intermediate member so as to restrict the slide movement of the intermediate member. A cushioning member receives a percussion force when the flange is stopped by the recessed portion. The clearance restricts a compression amount of the cushioning member so that a predetermined life of the cushioning member is assured.

摘要翻译： 设置在保持套筒和气缸之间的锤保持器沿轴向方向可滑动地保持中间构件。 在锤保持器和保持器套筒之间保持预定的间隙。 锤保持器具有可与中间构件的凸缘接合的凹部，以限制中间构件的滑动运动。 当凸缘被凹部停止时，缓冲构件接收击打力。 间隙限制了缓冲部件的压缩量，从而确保了缓冲部件的预定寿命。

公开(公告)号：US5522466A

公开(公告)日：1996-06-04

申请号：US405992

申请日：1995-03-17

申请人： Mutsuo Harada ,  Akihisa Yahagi

发明人： Mutsuo Harada ,  Akihisa Yahagi

IPC分类号： B25D17/04 ,  B25F5/00 ,  B25D17/00

CPC分类号： B25F5/006 ,  B25D17/043

摘要： A vibration-damping apparatus for an electric hammer unit is provided. This vibration-damping apparatus is provided with the so-called transatory unit including elastic bars disposed between elastic damper members connected to a tool body and a handle of the electric hammer unit, respectively, for absorbing relative displacement of the elastic damper members caused by vibrations produced by the tool body during use. The vibration-damping apparatus further includes a stopper member attached to the elastic damper member attached to the handle so as to engage a chamber formed in the elastic damper member attached to the tool body for preventing the handle from being dislodged from the tool body even when the handle is swung laterally by a hammer operator. Additionally, each of the elastic bars includes a large-diameter portion and a small-diameter portion so as to allow the large-diameter portion to be deformed toward the small-diameter portion during the relative displacement of the elastic damper members for increasing the life of the bars.

摘要翻译： 提供一种用于电锤单元的减振装置。 该减震装置设置有所谓的转换单元，其包括分别设置在连接到工具主体的弹性阻尼器构件和电锤单元的手柄之间的弹性杆，用于吸收由振动引起的弹性阻尼器构件的相对位移 在使用过程中由工具体产生。 该减振装置还包括一个止动件，该止动件附接到安装在手柄上的弹性阻尼器件，从而与形成在安装在该工具主体上的弹性阻尼器件中的腔室接合，以防止手柄从工具主体上脱离， 手柄由锤子操纵器横向摆动。 此外，每个弹性杆包括大直径部分和小直径部分，以便在弹性阻尼器部件的相对位移期间允许大直径部分朝向小直径部分变形以增加寿命 的酒吧。

公开(公告)号：US5971403A

公开(公告)日：1999-10-26

申请号：US988355

申请日：1997-12-10

申请人： Akihisa Yahagi ,  Mutsuo Harada

发明人： Akihisa Yahagi ,  Mutsuo Harada

IPC分类号： B23Q3/12 ,  B25D17/08 ,  B23B5/22

CPC分类号： B23Q3/12 ,  B25D17/088 ,  B25D2216/0076 ,  B25D2217/0034 ,  B25D2217/0038 ,  B25D2217/0065 ,  Y10S279/905 ,  Y10T279/17068 ,  Y10T279/17085 ,  Y10T279/17752 ,  Y10T279/17811

摘要： A tool bit holding device for use in percussion apparatuses such as electrically operated hammers is provided. The device includes a tool bit carrier, a front hand-operated grip, and a rear hand-operated grip. The front hand-operated grip is supported by the tool bit carrier so as to be movable in a lengthwise direction and a circumferential direction of the tool bit carrier. The rear hand-operated grip is installed rotatably on a hollow cylinder connected to a casing of the hammer. The removable of a tool bit from the tool bit carrier is accomplished by moving the front grip in the lengthwise direction and then turning it in the circumferential direction to release engagement between the tool bit and the tool bit carrier. The angular orientation of the tool bit carrier relative to the casing of the hammer is accomplished by turning the rear grip relative to the tool bit carrier to shift a angular relation between the tool bit carrier and the casing of the hammer.

摘要翻译： 提供了一种用于诸如电动锤的冲击装置的工具头保持装置。 该装置包括工具头托架，前手柄和后手柄。 前手柄由工具头托架支撑，以便能够沿刀具承载件的长度方向和圆周方向移动。 后手把手可旋转地安装在连接到锤的壳体的中空圆柱体上。 通过沿长度方向移动前把手，然后在圆周方向上转动工具刀头，可以从工具刀架移除刀头，以释放工具刀头和刀头托架之间的接合。 相对于锤的壳体，工具头托架的角度取向是通过相对于工具头托架转动后把手来移动工具头托架和锤的壳体之间的角度关系而实现的。

公开(公告)号：US06497418B2

公开(公告)日：2002-12-24

申请号：US09778115

申请日：2001-02-07

申请人： Akihisa Yahagi

发明人： Akihisa Yahagi

IPC分类号： B23B3122

CPC分类号： B25D17/088 ,  B25D2216/0076 ,  B25D2217/0042 ,  Y10S279/905 ,  Y10T279/17076 ,  Y10T279/17145 ,  Y10T279/17752

摘要： A tool-bit holding device in a percussion tool includes a rotatable and axially-movable retainer sleeve for accommodating a shank of a tool bit. A lock member supported by the retainer sleeve is movable radially with respect to the retainer sleeve. The lock member can engage the shank of the tool bit to limit axial movement of the tool bit. A small-diameter surface portion formed by an inner surface of a fixed front cover contacts the rock member and projects at least part of the lock member inward of the retainer sleeve to engage the lock member with the shank of the tool bit when the retainer sleeve is placed at an active position. A conic surface portion formed by the inner surface of the front cover is engageable with the lock member, and is able to variably limit radial movement of the lock member as the retainer sleeve moves axially.

摘要翻译： 冲击工具中的工具位保持装置包括用于容纳工具钻头的柄的可旋转且可轴向移动的保持套筒。 由保持器套筒支撑的锁定构件可相对于保持器套筒径向移动。 锁定构件可以接合工具钻头的柄以限制工具钻头的轴向移动。 由固定的前盖的内表面形成的小直径表面部分接触岩石构件，并且在保持套筒的柄部将锁定构件的至少一部分在保持套筒的内部突出以将锁定构件与工具刀柄接合 被置于主动位置。 由前盖的内表面形成的锥形表面部分可与锁定构件接合，并且能够随着保持器套筒轴向移动而可变地限制锁定构件的径向移动。