公开(公告)号：US5480100A

公开(公告)日：1996-01-02

申请号：US129053

申请日：1993-12-02

申请人： Itsuo Tagawa ,  Takaharu Kozaki

发明人： Itsuo Tagawa ,  Takaharu Kozaki

IPC分类号： E04G23/08 ,  B02C1/08

CPC分类号： E04G23/08 ,  E04G2023/086

摘要： Disclosed is a crushing equipment for crushing a pillar or beam of concrete structures through opening and closing movement of a pair of arms while clamping the pillar or beam by a pair of crushing blades provided on the ends of the arms. A hydraulic cylinder 1 for opening and closing the arms comprises a second cylinder including a couple of cylinders 3' and 3", and a pair of first cylinders fitted into the cylinders 3' and 3", respectively, and each having a cylinder bottom serving as a piston 9. When a hydraulic oil is introduced through a fifth oil port 18 provided in the second cylinder on the side of the cylinder bottom, the first cylinders 2 are forwardly displaced. When the first cylinders 2 reach their stroke ends, pistons of the first cylinders are forwardly moved to close the arms for crushing the concrete structure. When the hydraulic oil is introduced through fourth oil ports 16, the pistons 5 are retracted by way of second oil ports 10 and oil passages 11. When the pistons 5 reach their stroke ends, the pressure of the hydraulic oil acts on the cylinder bottoms of the first cylinders by way of gaps retracting the first cylinders to open the arms. The hydraulic oil is into the hydraulic cylinder 1 supplied only through the fourth oil ports 16 and the fifth oil port 18, thereby simplifying control operation.

摘要翻译： PCT No.PCT / JP92 / 00100 Sec。 371日期1993年12月2日第 102（e）日期1993年12月2日PCT提交1992年2月3日PCT公布。 第WO93 / 15291号公报 日期：1993年8月5日。公开的是一种破碎设备，用于通过一对臂的打开和关闭运动来破碎一个或多个混凝土结构梁，同时通过设置在臂的端部上的一对破碎刀片将柱或梁夹紧 。 用于打开和关闭臂的液压缸1包括具有一对气缸3'和3“的第二气缸和分别装配到气缸3'和3”中的一对第一气缸，每一个具有气缸 底部用作活塞9.当液压油通过位于气缸底侧的第二气缸中的第五油口18引入时，第一气缸2向前移位。 当第一气缸2到达其行程末端时，第一气缸的活塞向前移动以关闭用于破碎混凝土结构的臂。 当通过第四油口16引入液压油时，活塞5通过第二油口10和油通道11缩回。当活塞5到达其行程末端时，液压油的压力作用在缸 第一个气缸通过缝隙缩回第一个气缸以打开臂。 液压油进入仅通过第四油口16和第五油口18供给的液压缸1，从而简化了控制操作。

公开(公告)号：US4955961A

公开(公告)日：1990-09-11

申请号：US369967

申请日：1989-06-22

申请人： Itsuo Tagawa

发明人： Itsuo Tagawa

IPC分类号： E04G23/08

CPC分类号： E04G23/08 ,  E04G2023/086

摘要： A working machine comprises a machine body provided with a pair of arms which are arranged for movement toward and away from each other. The machine body is disposed for rotation, relative to a bracket mounted on the machine body, about an axis. A hydraulic cylinder assembly has a single cylinder defining therein a hydraulic chamber, and a single piston mounted to a piston rod extending through the hydraulic chamber, the piston rod having opposite ends thereof, which extend respectively from opposite ends of the hydraulic chamber, and which are fixedly connected to the bracket. Upon introduction of hydraulic fluid into the hydraulic chamber, the cylinder and a rack fixedly mounted to the outside of the cylinder are moved in the direction perpendicular to the axis, so as to cause a pinion meshing with the rack and the machine body connected with the pinion to rotate about the axis, thereby changing the direction of the plane in which the arms mounted on the machine body are moved.

摘要翻译： 工作机器包括设置有一对臂的机体，所述一对臂被布置为朝向彼此移动并远离彼此。 机体相对于安装在机器主体上的支架绕轴线设置成旋转。 液压缸组件具有在其中限定有液压室的单个气缸，以及安装到延伸穿过液压室的活塞杆的单个活塞，活塞杆的相对端分别从液压室的相对端延伸，并且其中 固定地连接到支架。 在将液压流体引入液压室中时，气缸和固定地安装到气缸外部的齿条沿垂直于轴线的方向移动，从而使小齿轮与齿条啮合，机体与 小齿轮围绕轴线旋转，从而改变安装在机体上的臂移动的平面的方向。

公开(公告)号：US5738289A

公开(公告)日：1998-04-14

申请号：US718391

申请日：1996-10-01

申请人： Itsuo Tagawa

发明人： Itsuo Tagawa

IPC分类号： B02C1/02 ,  E02F3/96 ,  E04G23/08 ,  B02C1/06

CPC分类号： E02F3/965 ,  E04G23/08 ,  E04G2023/086

摘要： A crusher capable of effectively crushing a building structure, shearing iron reinforcing rods, etc., smashing the crushed scraps into pieces, and collecting and carrying an elongated object. A pair of arms (2a, 2b) are driven to open and close for crushing and shearing the object. A front end of each of the pair of arms is divided into a plurality of fingers to which claws (7a, 7a', 7b) are respectively attached. Only the central claw (7a') is inwardly directed by a greater angle as compared with the other claws (7a, 7b). Each arms has a shearing blade (10a, 10b) for shearing an iron reinforcing rod, an iron frame, etc. in the vicinity of the pivoted portion, and also through holes (11) in the central portion. Weight of the arms (2a, 2b) and an arm support (3) are balanced with respect to the central axis of rotation of the arm support (3). The central claw (7a') gives a concentrated stress to the building structure to cause cracks when the arms (2a, 2b) are closed, thereafter the object is squashed out by all of the claws (7a, 7a', 7b). Concrete scraps are smashed by the central portions of the arms and flow out from the through holes.

摘要翻译： PCT No.PCT / JP96 / 00150 Sec。 371日期：1996年10月1日 102（e）日期1996年10月1日PCT 1996年1月26日PCT PCT。 出版物WO96 / 23944 日期：1996年8月8日破碎机能够有效地破碎建筑结构，剪切钢筋等，将粉碎的碎片粉碎成碎片，并收集并携带细长物体。 一对臂（2a，2b）被驱动以打开和关闭用于破碎和剪切物体。 一对臂的每一个的前端被分成多个指状物，爪（7a，7a'，7b）分别附接到爪。 与其他爪（7a，7b）相比，只有中心爪（7a'）向内指向较大的角度。 每个臂具有用于剪切在枢转部分附近的铁加强杆，铁框架等的剪切刀片（10a，10b），以及中心部分中的通孔（11）。 臂（2a，2b）和臂支撑件（3）的重量相对于臂支撑件（3）的中心旋转轴线平衡。 当臂（2a，2b）关闭时，中心爪（7a'）对建筑结构产生集中的应力，引起裂纹，之后被所有的爪（7a，7a'，7b）压扁。 混凝土屑被臂的中心部分砸碎，并从通孔流出。

公开(公告)号：US5636802A

公开(公告)日：1997-06-10

申请号：US507377

申请日：1995-08-21

申请人： Itsuo Tagawa

发明人： Itsuo Tagawa

IPC分类号： E02F3/96 ,  E04G23/08 ,  G02C1/06

CPC分类号： E02F3/965 ,  E04G23/08 ,  E04G2023/086

摘要： A pair of arms (2a, 2b) is rotatably supported on a support through pins (8) at their intermediate portions. A front portion of each arm extending from the portion supported by the pin (8) to the distal end has a distal end formed into a fork comprising a plurality of prongs. The claws (7a, 7a', 7a, 7b, 7b) are attached on respective distal ends of these plural prongs. Only a specific claw (7a') of the claws (7a, 7a', 7a) of one arm (2a), having a pointed conical distal end, is positioned to protrude inward farther than the remaining claws (7a, 7a) and serves to generate deep and shallow cracks where it is forcibly applied to material to be crushed. Shearing blades (10a, 10a) are provided on the front portions of respective arms (2a, 2b) in the vicinity of the portions rotatably supported by the pins (8). Furthermore, a plurality of through holes (12) are formed in the intermediate portions of the front portions of respective arms except for the portion where the shearing blades are provided and the portion where the distal-end prongs are formed.

摘要翻译： PCT No.PCT / JP94 / 02125 Sec。 371日期1995年8月21日 102（e）日期1995年8月21日PCT 1994年12月16日PCT PCT。 公开号WO95 / 17569 日期：1995年6月29日一对臂（2a，2b）在其中间部分通过销（8）可旋转地支撑在支撑件上。 从由销（8）支撑的部分延伸到远端的每个臂的前部具有形成为包括多个插脚的叉的远端。 爪（7a，7a'，7a，7b，7b）安装在这些多个尖头的相应末端上。 仅具有尖端锥形末端的一个臂（2a）的爪（7a，7a'，7a）的特定爪（7a'）被定位成比其余爪（7a，7a）向内进一步向内突出， 产生深而浅的裂缝，将其强制施加到要粉碎的材料上。 在由销（8）可旋转地支撑的部分附近，在各个臂（2a，2b）的前部设置剪切刀片（10a，10a）。 此外，除了设置有剪切刀片的部分和形成有前端尖头的部分之外，在各个臂的前部的中间部分中还形成有多个通孔（12）。

公开(公告)号：US4903408A

公开(公告)日：1990-02-27

申请号：US125541

申请日：1987-11-25

申请人： Itsuo Tagawa ,  Samon Kanno

发明人： Itsuo Tagawa ,  Samon Kanno

IPC分类号： E04G23/08 ,  B23D17/00 ,  B23D17/06 ,  B23D29/00 ,  E02F3/96

CPC分类号： E02F3/965 ,  B23D17/06 ,  B23D29/005

摘要： A steel plate cutter has a pair of stationary arms arranged with a predetermined gap therebetween, and a movable arm arranged between the stationary arms. An intermediate portion of the movable arm is pivotally supported by the stationary arms. Stationary and movable ends of a hydraulic cylinder are pivotally coupled to the proximal ends of the stationary arms and the movable arm. A pair of base blades that oppose a shearing push blade fixed to the distal end of the movable arm are fixed on the distal ends of the stationary arms. When the movable arm is driven by the hydraulic cylinder to approach and separate from the stationary arms, the shearing push blade of the movable arm enters or escapes from the gap between the base blades of the stationary arms. When the shearing push blade slides between the base blades, it cuts a steel plate in a belt-like strip by coaction with the base blades by a shearing force. The cut strip of the steel plate is bent in a direction away from the steel plate. Therefore, a belt-like space, in which and from which the movable arm can enter and escape, is formed in the steel plate by every cutting operation. When a single cutting operation is completed, the steel plate cutter can smoothly move on the steel plate along the belt-like space while the movable arm faces the belt-like space. As a result, the cutting operation can be easily repeated, and the steel plate can be safely and efficiently cut.

公开(公告)号：US4890798A

公开(公告)日：1990-01-02

申请号：US326817

申请日：1989-03-21

申请人： Itsuo Tagawa ,  Yukiharu Kanari ,  Samon Kanno ,  Takaharu Kozaki

发明人： Itsuo Tagawa ,  Yukiharu Kanari ,  Samon Kanno ,  Takaharu Kozaki

IPC分类号： E02F3/36 ,  E02F3/96 ,  E04G23/08

CPC分类号： E02F3/3677 ,  E02F3/3681 ,  E02F3/965 ,  E04G23/08 ,  E04G2023/086

摘要： An equipment adapted to be installed on a working machine, for crushing a structure. A hydraulic piston-cylinder unit is mounted to a bracket member to be mounted to the wording machine, for angular movement relative to the bracket member about an axis of a piston rod of the hydraulic piston-cylinder unit. At least one of a pair of opposed arms has a forward end provided with a crushing member. The pair of arms are operatively connected to the piston rod for pivotal movement, between closed and open positions, toward and away from each other and toward and away from a plane including an axis of the piston rod. A wall of a cylinder of the piston-cylinder unit is formed with passageway supplying hydraulic fluid from a hose unit of the working machine, into the cylinder. A rotatable coupling enables the passageway and the hose unit to communicate with each other, even when the piston-cylinder unit moves angularly about the axis of the piston rod relatively to the bracket member.

摘要翻译： 适于安装在工作机上的用于破碎结构的设备。 液压活塞缸单元安装到待安装到文字机的支架构件上，用于围绕液压活塞 - 气缸单元的活塞杆的轴线相对于支架构件的角度运动。 一对相对的臂中的至少一个具有设置有破碎构件的前端。 一对臂可操作地连接到活塞杆上，用于在封闭和打开位置之间朝向和远离彼此并且朝向和远离包括活塞杆的轴线的平面枢转运动。 活塞 - 气缸单元的气缸的壁形成有从工作机械的软管单元向液压缸供给液压流体的通道。 即使当活塞 - 气缸单元相对于支架构件相对于活塞杆的轴线成角度地移动时，可旋转的联接件使得通道和软管单元彼此连通。