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1. 发明专利

JP2003307200A Centrifugal fluid machine 有权
标题翻译：离心流体机
公开(公告)号：JP2003307200A
公开(公告)日：2003-10-31
申请号：JP2003153682
申请日：2003-05-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGAOKA YOSHIHIRO , TANAKA TEIJI , IWASE KOJI , IDA DOSHU , ISHIMARU HIROTOSHI , IWASAKI SABURO , UEYAMA TOSHIHARU , YOSHIDA TETSUYA
IPC分类号： F04D1/08 , F04D29/22 , F04D29/24 , F04D29/42 , F04D29/44 , F04D29/66
CPC分类号： F04D29/428
摘要： PROBLEM TO BE SOLVED: To reduce noise in a diffuser with vanes or a volute casing of a centrifugal fluid machine by easing pressure pulsation and vibrating force acting on the diffuser or the volute, or by canceling the pressure pulsation and the vibrating force each other.
SOLUTION: The fluid machine comprises an impeller 3 rotating around a rotation shaft 2 inside the casing 1 and the vaned diffuser 4 of the volute 12 fixed to the casing 1. Diameters of following edge of the impeller 3 and leading edge of the diffuser 4 or a cut-off are changed to the direction of the rotation shaft center line in order to incline the following edge of the impeller 3 and the diffuser 4's leading edge or the cut-off to the same direction on a meridian plane.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过减轻作用在扩散器或蜗壳上的压力脉动和振动力，或通过消除压力脉动和振动力来减小离心式流体机械的叶片或蜗壳的扩散器中的噪声彼此。解决方案：流体机械包括围绕壳体1内的旋转轴2旋转的叶轮3和固定到壳体1的蜗壳12的带叶片扩散器4.叶轮3的后缘的边缘和扩散器4或截止孔改变为旋转轴中心线的方向，以便在子午线平面上将叶轮3的后缘和扩散器4的前缘或截止线倾斜到同一方向。版权所有（C）2004，JPO

2. 发明专利

JP2009213917A Drum washing machine 审中-公开
标题翻译：滚筒洗衣机
公开(公告)号：JP2009213917A
公开(公告)日：2009-09-24
申请号：JP2009153182
申请日：2009-06-29
申请人： Hitachi Appliances Inc , Hitachi Ltd , 日立アプライアンス株式会社 , 株式会社日立製作所
发明人： MATSUI YASUHIRO , IDA DOSHU , AIDA SHUJI , KANEKO AKINORI , UENO SHINJI , TOGAWA RYUTA
IPC分类号： D06F37/22
摘要： PROBLEM TO BE SOLVED: To provide a compact, low-vibration, and low-noise drum washing machine.
SOLUTION: A damper for supporting a water tub in a washing machine casing from below includes: a cylinder; oil in a space provided in the cylinder; a piston which is provided at the end of a rod, moves in the cylinder where the oil is sealed in and has a plurality of small holes; a flange provided at the rod and leaving a downward distance with respect to the piston; and a valve movable between the piston and the flange. The piston has at least one hole to pass the oil even if the valve contacts the piston and a notch provided in the radial direction and at the lower part of the piston and at the position of the hole. When the damper extends/contracts a length larger than a predetermined length by the vibration of the water tub in a resonance range during dehydration, damping characteristics are switched so that the damping force increases only when the water tub is moving upward.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供紧凑，低振动，低噪音的滚筒洗衣机。解决方案：一种用于从下面将洗衣机外壳中的水桶支撑的阻尼器包括：气缸; 在设置在气缸中的空间中的油; 设置在杆的端部的活塞在油封中的气缸中移动并具有多个小孔; 设置在所述杆处并且相对于所述活塞留下向下距离的凸缘; 以及可在活塞和凸缘之间移动的阀。活塞具有至少一个孔以使油接触，即使阀接触活塞，并且在径向方向上以及在活塞的下部和孔的位置处设有凹口。当阻尼器在脱水期间的共振范围内通过水桶的振动而延伸/收缩大于预定长度的长度时，阻尼特性被切换，使得阻尼力仅在水桶向上移动时增加。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008125805A Drum type washing machine 有权
标题翻译：鼓式洗衣机
公开(公告)号：JP2008125805A
公开(公告)日：2008-06-05
申请号：JP2006314070
申请日：2006-11-21
申请人： Hitachi Appliances Inc , Hitachi Ltd , 日立アプライアンス株式会社 , 株式会社日立製作所
发明人： MATSUI YASUHIRO , IDA DOSHU , AIDA SHUJI , KANEKO AKINORI , UENO SHINJI , TOGAWA RYUTA
IPC分类号： D06F37/22
摘要： PROBLEM TO BE SOLVED: To provide a compact drum type washing machine which generates less vibration and less noise.
SOLUTION: The drum type washing machine comprises a water tub 3 supported at least inside a washing machine case 1 by a spring and a damper 7, a rotatable washing tub 4 installed inside the water tub 3 for storing laundry, and a motor 5 for driving and rotating the washing tub 4. The damper 7 has characteristics of switching to a greater damping force only when the water tub 3 moves upward by the magnitude of vibration of the water tub 3 so as to suppress excessive vibration. In the case of small vibration, the damping force is decreased so as to decrease transmission of the vibration.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种致密的滚筒式洗衣机，其产生较少的振动和较小的噪音。解决方案：滚筒式洗衣机包括：通过弹簧至少在洗衣机壳体1内部被支撑的水桶3;以及阻尼器7，安装在用于储存衣物的水桶3内的可旋转洗涤桶4，以及电动机阻尼器7具有仅当水桶3向上移动水桶3的振动大小以便抑制过大的振动时才能切换到较大阻尼力的特征。在振动小的情况下，阻尼力减小，以减少振动的传递。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2005152052A Washing machine 有权
标题翻译：洗衣机
公开(公告)号：JP2005152052A
公开(公告)日：2005-06-16
申请号：JP2003391316
申请日：2003-11-20
申请人： Hitachi Home & Life Solutions Inc , Hitachi Ltd , 日立ホーム・アンド・ライフ・ソリューション株式会社 , 株式会社日立製作所
发明人： AIDA SHUJI , IDA DOSHU , MIYANO YUZURU
IPC分类号： D06F37/24 , D06F37/22 , F16F15/02
摘要： PROBLEM TO BE SOLVED: To reduce vibration to be transmitted from an outer frame 5 to a floor by reducing the vibration of the outer frame 5 itself when operating a washing machine in the washing machine 1 having a washing/spin-drying tub 3 for putting laundry therein, a rotating blade 2 applying a mechanical force to the laundry in the washing/spin-drying tub 3, an outer tub 4 incorporating the washing/spin-drying tub 3, a vibration control mechanism 6 equipped between the outer tub 4 and the outer frame 5, a motor 7 rotatingly driving the rotating blade 2 and the washing/spin-drying tub 3, and elastic support legs 15 attached to the bottom of the outer frame 5 and supporting the outer frame 5 relative to the floor face.
SOLUTION: A vibration absorber 40 comprising a vibration system having a weight is provided on the upper part of the outer frame 5 of the washing machine 1. As for the vibration absorber, a bathwater absorbing pump installed on the upper part of the outer frame, a water feed valve, a blower fan, a drying heater, an electric circuit board and the like are used as the weight of the vibration system.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了减少在具有洗衣/甩干桶的洗衣机1中操作洗衣机时减少外框架5本身的振动从外框5传递到地板的振动 3，用于在其中放置衣物的旋转刀片2，在洗涤/旋转干燥桶3中的衣物上施加机械力的旋转刀片2，包括洗涤/旋转干燥桶3的外桶4，设置在外部桶4和外框架5，旋转地驱动旋转叶片2和洗涤/旋转干燥桶3的马达7，以及附接到外框架5的底部并且相对于外框架5支撑外框5的弹性支撑腿15 地板面解决方案：在洗衣机1的外框架5的上部设置有包括具有重物的振动系统的减震器40.至于减振器，设置在上部的洗涤水吸收泵外框，送水阀，鼓风机，干燥加热器，电路板等作为振动系统的重量。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2003079995A Drum type washing machine 有权
标题翻译：鼓式洗衣机
公开(公告)号：JP2003079995A
公开(公告)日：2003-03-18
申请号：JP2001272857
申请日：2001-09-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MATSUI YASUHIRO , OTA GICHU , TERAMOTO RITSU , IDA DOSHU , AIDA SHUJI
IPC分类号： D06F37/22 , D06F49/06
摘要： PROBLEM TO BE SOLVED: To reduce vibration a drum type washing machine.
SOLUTION: In a drum type washing machine incorporating a water tank 3, a supported portion composed of the tank 3, a drum 4, and a motor 5 is supported by three suspensions 7 including one in the front side of the center of gravity and two in the rear side of the center of gravity.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：减少鼓式洗衣机的振动。解决方案：在装有水箱3的滚筒式洗衣机中，由罐3，滚筒4和马达5组成的支撑部分由三个悬架7支撑，这三个悬架7在重心的前侧包括一个，两个在重心的后方。

6. 发明专利

JP2002143594A DEHYDRATING-WASHING MACHINE 失效
公开(公告)号：JP2002143594A
公开(公告)日：2002-05-21
申请号：JP2000345476
申请日：2000-11-08
申请人： HITACHI LTD
发明人： IDA DOSHU , AIDA SHUJI
IPC分类号： D06F37/24 , F16F15/03 , F16F15/04
摘要： PROBLEM TO BE SOLVED: To achieve the specified value holding of a vibration damping force extending to a long period of time for a hanging rod mechanism having a sliding damper, and an optimum lubrication retention extending to a long period of time at a low cost, and provide a compact washing machine of a large capacity having a favorable usability and low noises. SOLUTION: As a means to keep a required pressing force uniform regardless of wear, the required pressing force is ensured by an attracting force with a magnetic force. In this case, the hanging rod is constituted of a magnetic body, and a sliding member is constituted of an elastic body containing a magnetic powder, which is divided into a plurality in the hanging rod axial direction.

7. 发明专利

JP2001321593A DEHYDRATING WASHING MACHINE 失效
公开(公告)号：JP2001321593A
公开(公告)日：2001-11-20
申请号：JP2000148573
申请日：2000-05-16
申请人： HITACHI LTD
发明人： AIDA SHUJI , IDA DOSHU
IPC分类号： D06F37/24 , F16F13/00 , F16F15/04 , F16F15/06 , F16F15/067
摘要： PROBLEM TO BE SOLVED: To provide a vibration control mechanism especially suitable for maintaining stable performance for a dehydrating washing machine in which an outer tub, etc., are suspension-supported by the vibration control mechanism. SOLUTION: This dehydrating washing machine is equipped with a vibration control mechanism 2 to suspension-support an outer tub 3 to an outer frame 1. The vibration control mechanism 2 is constituted of a cap 24 fit to the lower part of a cylindrical body 16, lubricating oil 29 enclosed inside the cylindrical body 16, spaces separated up and down by a slide member 23, and a passage through which the lubricating oil 29 can move between the upper and the lower spaces so that the lubricating oil 29 can drop from around the upper part of the cylindrical body 16.

8. 发明专利

JPH10151295A ELECTRIC WASHING MACHINE 失效
公开(公告)号：JPH10151295A
公开(公告)日：1998-06-09
申请号：JP31335496
申请日：1996-11-25
申请人： HITACHI LTD
发明人： IDA DOSHU , TAKAGI YUKISHI
IPC分类号： D06F37/24 , D06F49/06 , F16F13/02
摘要： PROBLEM TO BE SOLVED: To reduce the resonance amplitude of a specified oscillation mode and to reduce the size by changing the configuration of a hanging bar mechanism of a full automatic washing machine. SOLUTION: This dewatering/washing machine is provided with a balance body 12 as a hollow circular body containing fluid at its top end opening part and bottom part, an inner drum 5 containing an agitator blade at its bottom center, an outer drum 3 which connects an attaching plate 9 at its bottom to which a motor 8, clutch 7, and a belt drive transmission system are attached, and the outer drum 3 connects and contains the inner drum 5 through the clutch 7 and a flange 6, and an outer frame 1 supporting the outer drum 3 through the hanging bar, and the dewatering/washing machine performs both washing and dewatering at the inner drum 5. The hanging bar 2 mechanism contains at least one spring and a vibration absorber consisting of at least one weight and an attenuator.

9. 发明专利

JPH10112959A ROTATING ELECTRIC MACHINE 失效
公开(公告)号：JPH10112959A
公开(公告)日：1998-04-28
申请号：JP26275296
申请日：1996-10-03
申请人： HITACHI LTD
发明人： MATSUBARA KENICHIRO , IDA DOSHU
IPC分类号： F04D29/34 , H02K5/24 , H02K9/06
摘要： PROBLEM TO BE SOLVED: To minimize the magnetic sound radiated from a cooling fan even if a cooling fan vibrates with the vibration of a rotary shaft by electromagnetic force waves, by plural sheets of vanes of the cooling fan with one another in circumferential direction, using coupling member. SOLUTION: The heat generated in a stator 4 occupies the greater part of the heat generated in a rotating electric machine 1, and most of this heat is conducted to a housing 6 and further to the cooling fan 8 installed at the periphery of the housing 6, and here it is conducted to the outside air. It follows that the rotating electric machine 1 is cooled by this serial heat conduction, but sufficient cooling is difficult with only this, so the cooling fan 10 is coupled with a rotary shaft 2, and cooling air relatively low in temperature generated by that rotation is sent in compulsively between the cooling fans 8 so as to accelerate the cooling. In this case, a plurality of vanes 11 arranged in radial form of the cooling fan 10 are coupled with one another, using as many coupling members as it, thus the area in axial view of the cooling fan 10 is minimized.

10. 发明专利

JPH08117480A DEWATERING WASHING MACHINE 失效
公开(公告)号：JPH08117480A
公开(公告)日：1996-05-14
申请号：JP25589194
申请日：1994-10-21
申请人： HITACHI LTD
发明人： IDA DOSHU , TANAKA KIHACHIRO , AIDA SHUJI , SHIKAMORI TAMOTSU , OSUGI HIROSHI
IPC分类号： D06F37/24 , F16F7/00
摘要： PURPOSE: To effectively reduce the vibration amplitude of an external tank in dewatering operation. CONSTITUTION: Suspension rods 5-8 for suspending the external tank 4 are provided with conversion levers 10-13 which face the outer periphery of the external tank 4, whose vibratory displacement is made to operate on the conversion levers 10-13; and then a pressing force in a 90 deg. phase advance angle direction is made to operate on the external tank 4, thereby obtaining vibration damping operation.

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