公开(公告)号：US5871059A

公开(公告)日：1999-02-16

申请号：US607936

申请日：1996-02-28

Applicant: Mitsuyoshi Shibata ,  Masaki Sakuraghi ,  Yoshihiro Kasuya

Inventor： Mitsuyoshi Shibata ,  Masaki Sakuraghi ,  Yoshihiro Kasuya

IPC: B25D17/24 ,  B25D11/00 ,  B25D11/12 ,  B25D9/04

CPC classification number: B25D11/005 ,  B25D11/125 ,  B25D2211/003 ,  B25D2250/191

Abstract: The present invention realizes effective recoil reduction and idling strike prevention with a minimum constitution. In a tool holder (6), a thermal-resistant O-ring (22) is arranged between two steel washers (21,23) near the joint to the barrel (5). The O-ring (22) has a cross-sectional diameter of approximately 7 mm. The inner diameter of the O-ring (22) is made slightly greater than the diameter of a cylindrical portion (19b) formed at the rear of an intermediate element (19) and slightly smaller than the diameter of a flange (19a) formed at the rear of the cylindrical portion (19b). Likewise, the inner diameter is made slightly greater than the diameter of a recess (18b) of a striking member (18) formed in front thereof and slightly smaller than the diameter of a flange (18a) formed in front of the recess (18b). The cylindrical portion (19b) of the intermediate element (19) is extended backward for such a distance that, when the cylindrical portion (19b) is fitted in the O-ring (22), the flange (19a) is positioned behind, and out of contact with, the O-ring (22).

Abstract translation: 本发明以最小的结构实现有效的后坐力减少和空转防止。 在工具架（6）中，在靠近枪管（5）的接头附近的两个钢垫圈（21,23）之间布置有耐热O形圈（22）。 O形环（22）的截面直径约为7mm。 O形环（22）的内径略大于形成在中间元件（19）的后部的圆柱形部分（19b）的直径，并且略小于形成在中间元件（19）上的凸缘（19a）的直径 圆柱形部分（19b）的后部。 同样地，使内径略大于形成在其前方的击打构件（18）的凹部（18b）的直径，并稍微小于形成在凹部（18b）前面的凸缘（18a）的直径， 。 中间元件（19）的圆柱形部分（19b）向后延伸一段距离，使得当圆柱形部分（19b）装配在O形环（22）中时，凸缘（19a）位于后面，并且 与O形圈（22）不接触。

公开(公告)号：US06971455B2

公开(公告)日：2005-12-06

申请号：US10719563

申请日：2003-11-20

Applicant: Mitsuyoshi Shibata ,  Masanori Furusawa ,  Yasuhiro Kakiuchi

Inventor： Mitsuyoshi Shibata ,  Masanori Furusawa ,  Yasuhiro Kakiuchi

IPC: E21B6/00 ,  B23B45/16 ,  B25D11/04 ,  B25D16/00 ,  B25D17/10

CPC classification number: B25D16/00 ,  B25D16/006 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2216/0053 ,  B25D2250/191

Abstract: A hammer drill (1) includes a lock plate (35) forward of a boss sleeve (13) and a swash bearing (14) which cooperates with the boss sleeve to convert the rotation of an intermediate shaft (5) on which the boss sleeve is mounted. The lock plate is mounted on the boss sleeve and selectively engages claws (23) of the boss sleeve (13) in a manner that permits its integral rotation with and axial slide with respect to the boss sleeve. The lock plate is additionally biased in the forward direction by a coil spring (38) so that when a clutch (19) is shifted forward in a drill mode, the lock plate also moves forward into engagement with a stopper (39) secured to an inner housing (4), preventing inadvertent rotation of the boss sleeve.

Abstract translation: 锤钻（1）包括在凸起套筒（13）的前面的锁定板（35）和与凸起套筒配合的斜盘轴承（14），用于转换中间轴（5）的旋转，在该中间轴 被安装。 锁定板安装在凸台套筒上并以允许其相对于凸台套筒一体旋转和轴向滑动的方式选择性地接合凸台套筒（13）的爪（23）。 锁板通过螺旋弹簧（38）向前方向被额外偏置，使得当离合器（19）以钻孔模式向前移动时，锁定板还向前移动以与固定到 内壳体（4），防止凸起套筒的意外旋转。

公开(公告)号：US5320177A

公开(公告)日：1994-06-14

申请号：US37936

申请日：1993-03-26

Applicant: Mitsuyoshi Shibata ,  Masao Miwa

Inventor： Mitsuyoshi Shibata ,  Masao Miwa

IPC: B25D17/00 ,  B25D11/10

CPC classification number: B25D17/00 ,  B25D2211/061 ,  B25D2222/61 ,  B25D2250/065 ,  B25D2250/191 ,  B25D2250/331 ,  B25D2250/335

Abstract: The invention provides an improved intermediate housing incorporated in a power driven hammer drill, which is light in weight, easily and safely handled, and uncostly manufactured. The intermediate housing of the invention includes a bearing member and a cylindrical piston housing member which are integrally composed of a synthetic resin having high tenacity and excellent heat resistance and wear resistance. The intermediate housing further includes a plurality of ribs radially extending from the piston housing member to give a sufficient strength durable to a stress applied onto the piston housing member. In the intermediate housing thus constructed, the bearing member has at least one opening for feeding an air flow generated by a fan while the piston housing member includes at least one air conduit for circulating the air flow. This structure efficiently prevents overheat and thermal deformation of the piston housing member and the bearing member in continuous operation of the hammer drill.

Abstract translation: 本发明提供了一种结合在动力锤式钻机中的改进的中间壳体，其重量轻，易于安全地处理，并且不会被制造。 本发明的中间壳体包括由具有高强度和优异的耐热性和耐磨性的合成树脂整体构成的轴承构件和圆柱形活塞壳体构件。 中间壳体还包括从活塞壳体构件径向延伸的多个肋，以给予施加到活塞壳体构件上的应力耐受的足够的强度。 在如此构造的中间壳体中，轴承构件具有用于供给由风扇产生的空气流的至少一个开口，而活塞壳体构件包括用于使空气流循环的至少一个空气管道。 该结构有效地防止了锤钻的连续操作中的活塞壳体部件和轴承部件的过热和热变形。

公开(公告)号：US6073705A

公开(公告)日：2000-06-13

申请号：US166709

申请日：1998-10-05

Applicant: Mitsuyoshi Shibata ,  Masaaki Uchida

Inventor： Mitsuyoshi Shibata ,  Masaaki Uchida

IPC: B23Q3/12 ,  B25D17/08 ,  B25F5/00 ,  B23B31/07

CPC classification number: B25D17/088 ,  B25D2216/0076 ,  B25D2217/0038 ,  B25D2217/0042 ,  Y10T279/17085

Abstract: There is provided a power-driven striking tool including: a casing; a tool holder rotatably supported inside the casing and having a front end to which a tool bit is attached; and an operating member fitted around the tool holder and exposed to the outside of the tool so as to be manually slidable in the axial directions of the tool holder and integrally rotatable with the tool holder. The operating member is biased rearward by a compression spring along the axis of the tool holder into contact with the casing. The tool further includes first teeth provided on the operating member where it comes into contact with the casing and second teeth provided on the casing where it comes into contact with the operating member. When the operating member is brought into contact with the casing, the first and second teeth engages each other to prevent the operating member and thus the tool holder from rotating relative to the casing.

Abstract translation: 提供了一种动力打击工具，包括：壳体; 工具架，其可旋转地支撑在所述壳体内，并且具有安装工具钻头的前端; 以及操作构件，其围绕所述工具架安装并暴露于所述工具的外部，以便能够在所述工具架的轴向方向上手动地滑动并与所述工具架一体旋转。 操作构件通过沿着工具架的轴线的压缩弹簧向后偏压以与壳体接触。 该工具还包括设置在操作构件上的与壳体接触的第一齿和设置在壳体上的与操作构件接触的第二齿。 当操作构件与壳体接触时，第一和第二齿彼此接​​合以防止操作构件并因此工具夹具相对于壳体旋转。

公开(公告)号：US4524821A

公开(公告)日：1985-06-25

申请号：US461098

申请日：1983-01-26

Applicant: Milton E. Berry ,  Mitsuyoshi Shibata

Inventor： Milton E. Berry ,  Mitsuyoshi Shibata

IPC: B22D11/06

CPC classification number: B22D11/0671

Abstract: Casting band heater for molten metal continuous casting apparatus, wherein a casting band forming one of the mold surfaces is preheated to improve the operational life of the casting band. The apparatus also assures a dry band to avoid steam explosions and gas entrapments. The band heater includes an efficient burner and a band enclosure which can be opened for band changes.

Abstract translation: 用于熔融金属连续铸造装置的铸带加热器，其中形成其中一个模具表面的铸造带被预热以提高铸造带的使用寿命。 该设备还确保干燥的带，以避免蒸汽爆炸和气体截留。 带式加热器包括一个高效的燃烧器和一个可以打开以进行带变化的带外壳。

公开(公告)号：US6131671A

公开(公告)日：2000-10-17

申请号：US771972

申请日：1996-12-23

Applicant: Mitsuyoshi Shibata ,  Masaaki Uchida

Inventor： Mitsuyoshi Shibata ,  Masaaki Uchida

IPC: B23Q3/12 ,  B23B45/16 ,  B25D11/04 ,  B25D17/08 ,  B25F5/00 ,  E02D7/02

CPC classification number: B25D17/088 ,  B25D2217/0042 ,  B25D2217/0049

Abstract: A power-driven hammer has a tool holder a middle bore portion which is supported inside a housing and urged backward by a compression spring. The rear end of a large bore portion of the tool holder is slidably fitted into a spline ring which is secured to the front end of a middle housing. Spline grooves are formed in the inner periphery of the spline ring at its front end while spline gears are formed on the outer periphery of the large bore portion. When the spline grooves and the spline gears are engaged with each other, the tool holder, being urged backward, is locked with its rotation prohibited. This tool holder can be temporarily unlocked to allow its rotation by sliding a change ring cover forward and the tool holder itself, thereby disengaging the large bore portion from the spline ring.

Abstract translation: 动力锤具有工具架，中间孔部分被支撑在壳体内并由压缩弹簧向后推动。 工具架的大孔部分的后端可滑动地装配到花键环中，该花键环固定到中间壳体的前端。 花键槽在其前端形成在花键环的内周中，而花键齿轮形成在大孔部分的外周上。 当花键槽和花键齿轮彼此接合时，向后推动的工具夹具被禁止旋转锁定。 该工具架可以暂时解锁，以允许其通过向前滑动换环罩和工具架本身而旋转，从而使大孔部分与花键环分离。

公开(公告)号：USD343105S

公开(公告)日：1994-01-11

申请号：US938467

申请日：1992-08-31

Applicant: Mitsuyoshi Shibata ,  Masao Miwa

Designer： Mitsuyoshi Shibata ,  Masao Miwa

公开(公告)号：US4962588A

公开(公告)日：1990-10-16

申请号：US334531

申请日：1989-04-07

Applicant: Fusao Fushiya ,  Takashi Yamazaki ,  Mitsuyoshi Shibata

Inventor： Fusao Fushiya ,  Takashi Yamazaki ,  Mitsuyoshi Shibata

IPC: B23D49/00 ,  B23D49/16 ,  B23D51/02 ,  B23D51/16

CPC classification number: B23D49/002 ,  B23D49/165 ,  B23D51/02 ,  B23D51/16

Abstract: A portable reciprocating saw includes a tool housing, an electric motor enclosed in the tool housing and having an output shaft, an elongated slider for supporting a saw blade, and motion converting means mounted in the tool housing for converting the rotation from the electric motor into a reciprocating motion of the slider in longitudinal direction. The motion converting means includes a bevel gear meshing with the ouptut shaft of the electric motor and rotatable about an axis inclined to a plane transverse to the longitudinal direction of the slider, a slider block mounted on the slider and having a guide groove formed on a lower surface thereof in a direction transverse to the longitudinal direction of the slider, and an eccentric pin mounted on the bevel gear at a position eccentric from the center of the bevel gear and loosely fitted in the guide groove of the slider block. With this arrangement, during operation of the electric motor, the slider performs a composite orbital motion including a reciprocating motion in longitudinal direction and a pivotal motion about a pivot axis extending transverse to the longitudinal direction.

Abstract translation: 便携式往复锯包括工具壳体，封闭在工具壳体中并具有输出轴的电动马达，用于支撑锯片的细长滑块和安装在工具壳体中的运动转换装置，用于将来自电动机的旋转转换成 滑块在纵向上的往复运动。 运动转换装置包括与电动马达的喷头轴啮合的锥齿轮，可围绕与横向于滑块纵向的平面倾斜的轴线旋转;滑块，安装在滑块上，并具有形成在滑块上的导向槽 在与滑块的纵向方向横切的方向上的下表面，以及安装在锥齿轮上的位于与锥齿轮的中心偏心的位置并且松动地装配在滑动块的引导槽中的偏心销。 利用这种布置，在电动机的操作期间，滑块执行包括纵向往复运动的复合轨道运动和围绕横向于纵向方向延伸的枢转轴线的枢转运动。