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1. 发明专利

JP2008032032A Cylinder device and method of manufacturing it 审中-公开
标题翻译：气缸装置及其制造方法
公开(公告)号：JP2008032032A
公开(公告)日：2008-02-14
申请号：JP2006202732
申请日：2006-07-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHII SHOZO
IPC分类号： F15B15/14 , B62D5/12 , F16J10/02
摘要： PROBLEM TO BE SOLVED: To provide a cylinder device in which the looseness (rotation) of an end cap relative to a cylinder tube is surely prevented and a method of manufacturing the cylinder device.
SOLUTION: This cylinder device comprises a cylinder tube 11 having a female screw part 12 on the inner peripheral surface thereof at the axial end and an end cap 14 having a male screw part 15 corresponding to the female screw part on the outer peripheral surface and screwed to the axial one end of the cylinder tube. A through hole 13 is formed in the peripheral wall of the cylinder tube at the generally axial center of the female screw part along the radial direction. With the end cap screwed to the cylinder tube, a plastic deformation part 21 is formed on a part of the male screw part by crushing the threads 15a of the male screw part with a tool through the through hole. Since the end cap cannot be rotated nor moved, the end cap screwed to the cylinder tube can be prevented from being loosened (rotated).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供可靠地防止端盖相对于气缸套的松动（旋转）的气缸装置和制造气缸装置的方法。解决方案：该气缸装置包括在轴向端部的内周表面上具有阴螺纹部分12的气缸套筒11和具有对应于外螺纹部分的外螺纹部分15的端盖14 表面并拧入缸筒的轴向一端。沿着径向在阴螺纹部的大致轴向的中心形成有贯通孔13。通过将端盖拧到气缸套上，通过用工具通过通孔破碎外螺纹部分的螺纹15a，在外螺纹部分的一部分上形成塑性变形部分21。由于端盖不能旋转也不能移动，因此可以防止拧入缸套的端盖被松动（旋转）。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008126675A Valve device for power steering 审中-公开
标题翻译：用于动力转向的阀装置
公开(公告)号：JP2008126675A
公开(公告)日：2008-06-05
申请号：JP2006309900
申请日：2006-11-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHII SHOZO
IPC分类号： B62D5/083
摘要： PROBLEM TO BE SOLVED: To provide a valve device for a power steering having a compact centering device.
SOLUTION: The valve device for the power steering comprises a pinion shaft stored in a housing, connected to a valve shaft through a torsion bar, and engaged with a rack bar connected to a steering wheel; a valve body integrally provided with the pinion shaft between the housing and the valve shaft, and selectively supplying hydraulic fluid supplied from an outside hydraulic source to a steering power cylinder according to the twisting amount of the torsion bat by relative rotations of the valve shaft; an engaging member provided so as to move in a diameter direction to either one side of the pinion shaft and/or a valve body or the valve shaft; a recessed portion provided on the other side of the pinion shaft and/or the valve body or the valve shaft, which the engaging member is engaged, and formed over a predetermined angle range in a rotating direction about a state that there is no twisting amount of the torsion bar; and an energizing member energizing the engaging member to the recessed portion side.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有紧凑型定心装置的动力转向装置的阀装置。解决方案：用于动力转向的阀装置包括存储在壳体中的小齿轮轴，其通过扭杆连接到阀轴，并且与连接到方向盘的齿条连接; 一体地设置在壳体和阀轴之间的小齿轮轴的阀体，并且通过阀轴的相对旋转，根据扭转棒的扭转量选择性地将从外部液压源供给的液压流体供给到转向动力油缸; 接合构件，其设置成沿小直径方向移动到小齿轮轴和/或阀体或阀轴的任一侧; 设置在小齿轮轴和/或阀体的另一侧的凹部，该凹部与接合构件接合的阀体或阀轴，并且围绕不存在扭转量的状态沿旋转方向形成在预定角度范围的扭杆; 以及激励构件将所述接合构件激励到所述凹部侧。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2006231937A Check valve for power steering 审中-公开
标题翻译：检查阀用于动力转向
公开(公告)号：JP2006231937A
公开(公告)日：2006-09-07
申请号：JP2005044965
申请日：2005-02-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHII SHOZO
IPC分类号： B62D5/07 , F16K15/02
摘要： PROBLEM TO BE SOLVED: To provide a check valve for power steering capable of being installed in a single operation. SOLUTION: This check valve 13 is constituted of a valve seat member 25 having a cylinder part 25a to be inserted into an oil passage 24, a taper part 25b integrally formed on the cylinder part 25a and to contract in diameter toward a small diametrical part on the side of a hydraulic pump from a large diametrical part on the side of a power cylinder, a flange part 25c integrally formed on the small diametrical part and extended to the outside in the diametrical direction and an engaging part 25d integrally formed on the flange part 25c and engaged with a circumferential groove 24c of a circumferential surface of the oil passage 24 and a valve element 26 to avoid back-flow of hydraulic oil by being seated on the taper part 25b from the inside of the large diametrical part side. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够安装在单次操作中的用于动力转向的止回阀。解决方案：该止回阀13由具有插入油路24的缸部25a的阀座构件25，一体形成在缸部25a上的锥形部25b构成，动力缸侧的大直径部分的液压泵一侧的直径部分，一体地形成在小直径部分上并沿直径方向延伸到外侧的凸缘部25c和一体形成在其上的接合部25d 凸缘部25c与油路24的周面的周向槽24c和阀体26接合，以避免从大直径部分侧的内侧坐落在锥形部25b上而产生液压油的回流。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2007269130A Steering rack and manufacturing method of steering rack 有权
标题翻译：转向架的转向架和制造方法
公开(公告)号：JP2007269130A
公开(公告)日：2007-10-18
申请号：JP2006096247
申请日：2006-03-31
申请人： High Frequency Heattreat Co Ltd , Hitachi Ltd , 株式会社日立製作所 , 高周波熱錬株式会社
发明人： ISHII SHOZO , KONDO SHIGETOSHI , KAMIMURA SEIJI , YAMAWAKI TAKASHI , NOMURA MASAHITO , NAKAMIZO TAKUYA
IPC分类号： B62D3/12 , B21J5/12 , B21K1/76 , B21K21/16
摘要： PROBLEM TO BE SOLVED: To simultaneouly improve precision of a rack tooth and reduce manufacturing cost without incurring a factor of inhibiting workability such as an amendment, etc. while forming the rack tooth by plastic deformation.
SOLUTION: This rack shaft 11 is formed on a rack body 13 by a hollow steel pipe, and the rack tooth 12 having a plurality of tooth parts 14 is provided on its one end side in the axial direction. This rack tooth 12 is formed on a flat type peripheral wall outer surface of the rack body by plastic working by pushing a tooth profile 25 having a tooth form of the same shape as the rack tooth on a peripheral wall of the rack main body by giving pressure to it, inserting a rod type jig 23 in the inside of the rack body and reciprocally moving the jig in the axial direction. Grinding work after the plastic working is facilitated by reducing flowing quantity of a material in the longitudinal direction of each of the tooth parts by setting tooth width in the longitudinal direction of each of the tooth parts slightly smaller than usual and forming shoulder parts 21, 21 on both end parts in the longitudinal direction of each of the tooth parts in this plastic working.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过塑性变形同时形成齿条齿，同时提高齿条齿的精度并降低制造成本，而不会产生诸如修正等的可加工性的因素。解决方案：该齿条轴11通过中空钢管形成在齿条体13上，具有多个齿部14的齿条齿12在轴向的一端侧设置。该齿条齿12通过塑性加工而形成在齿条体的平面型外周壁外表面上，通过向齿条主体的周壁推压具有与齿条齿相同形状的齿形的齿廓25，对其进行压力，将杆型夹具23插入齿条体的内部并使夹具沿轴向往复运动。通过使每个齿部的长度方向上的齿宽度比通常稍小一点地减小每个齿部的长度方向的材料的流动量，从而促进塑性加工后的磨削加工，并形成肩部21,21 在这种塑料加工中，在每个齿部件的纵向上的两个端部上。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2006160021A Power steering device 审中-公开
标题翻译：动力转向装置
公开(公告)号：JP2006160021A
公开(公告)日：2006-06-22
申请号：JP2004352518
申请日：2004-12-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHII SHOZO , KAWAMURA MASASHI
IPC分类号： B62D5/22 , F15B15/22
摘要： PROBLEM TO BE SOLVED: To improve returning property of a steering wheel by a power steering device for simplifying an assembling work of a part to a cylinder tube.
SOLUTION: A first diameter-contraction part 24 having a smaller inner diameter than an inner diameter of the cylinder tube 1 and a third diameter-contraction part 25 having a larger inner diameter than the first diameter-contraction part 24 and having a smaller inner diameter than the inner diameter of the cylinder tube 1 are formed on an inner peripheral side of the cylinder tube 1. A first holder 17 provided with a first seal member 12 and a first coil spring 19 is inserted to the first diameter-contraction part 24 and the third diameter-contraction part 25 from the left in Fig. and thereby, they are stored respectively.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了简化部件与气缸套的组装工作，通过动力转向装置改善方向盘的返回性能。解决方案：具有比缸筒1的内径小的内径的第一直径收缩部分24和具有比第一直径收缩部分24更大的内径的第三直径收缩部分25，并且具有在缸筒1的内周侧形成比缸筒1的内径小的内径。在第一直径收缩部插入设置有第一密封构件12和第一螺旋弹簧19的第一保持件17 部分24和第三直径收缩部分25从图1中的左侧开始。从而分别存储它们。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005170071A Fixing structure for reservoir tank 有权
标题翻译：储水罐固定结构
公开(公告)号：JP2005170071A
公开(公告)日：2005-06-30
申请号：JP2003408084
申请日：2003-12-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAKI TOSHIMITSU , ISHII SHOZO
IPC分类号： B62D5/07
摘要： PROBLEM TO BE SOLVED: To provide a fixing structure for a reservoir tank capable of rigidly fixing the reservoir tank and a pump housing. SOLUTION: The fixing structure for the reservoir tank is constituted by the pump housing 3 having an approximately cylindrical first mounting part 4; the reservoir tank 2 having an approximately cylindrical second mounting part 10 and covering the first mounting part 4; and a fastening band 11 for fastening the pump housing 3 and the reservoir tank 2. Engagement parts 7, 12 constituted by approximately semi-spherical recessed parts 7a, 7b (12c) and projections 12a, 12b (7c) are formed on opposed surfaces of a cylindrical outer peripheral surface of the first mounting part 4 and a cylindrical inner peripheral surface of the second mounting part 10 respectively. The engagement part 7 of the first mounting part 4 is provided so as to be offset to the pump housing 3 side relative to the engagement part 12 of the second mounting part 10. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够刚性地固定储存箱和泵壳体的储存箱的固定结构。解决方案：储罐的固定结构由具有大致圆筒形的第一安装部分4的泵壳体3构成; 储存罐2具有大致圆筒形的第二安装部分10并覆盖第一安装部分4; 以及用于紧固泵壳体3和储存箱2的紧固带11，由大致半球状的凹部7a，7b（12c）和突起12a，12b（7c）构成的接合部7,12形成在第一安装部4的圆筒状的外周面和第二安装部10的圆筒状的内周面。第一安装部分4的接合部分7相对于第二安装部分10的接合部分12设置成相对于泵壳体3侧偏移。（C）2005年，JPO和NCIPI

7. 发明专利

JP2008030500A VIBRATION ISOLATOR 审中-公开
公开(公告)号：JP2008030500A
公开(公告)日：2008-02-14
申请号：JP2006202733
申请日：2006-07-26
申请人： HITACHI LTD
发明人： ISHII SHOZO
IPC分类号： B62D3/12 , B62D5/04 , B62D5/22 , F16F15/08
摘要： PROBLEM TO BE SOLVED: To provide a vibration isolator capable of ensuring a good steering feeling by preventing hysteresis from being generated in a vibration isolating action. SOLUTION: The vibration isolator 11 is equipped with an external cylinder member 12, an internal cylinder member 13 which is disposed at the inner peripheral side of the external cylinder member, and has the outside diameter smaller than the inside diameter of the external cylinder member, a first elastic member 14 which is fitted by insertion between the internal cylinder member and the external cylinder member, adhesively fixed to the outer peripheral surface of the both internal and external cylinder members, and press-fitted to the inner peripheral surface of the external cylinder member, a pair of first and second plate members 15, 16 which are respectively fitted by insertion from the outside in the axial direction to both end parts of the internal cylinder member, and a pair of disc shaped second elastic members 17, 18 which are adhesively fixed to the inner end surface of respective plate members. Slippage between the inner peripheral surface of the external cylinder member and the outer peripheral surface of the first elastic member is eliminated by adhesively fixing the first elastic member with respect to the external cylinder member to prevent the generation of hysteresis between the shearing deforming time and the restoring time. COPYRIGHT: (C)2008,JPO&INPIT

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