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1. 发明专利

JPH02222834A ULTRASONIC PROBE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02222834A
公开(公告)日：1990-09-05
申请号：JP9009789
申请日：1989-04-10
申请人： HITACHI CONSTRUCTION MACHINERY , HITACHI LTD
发明人： SATO KAZUO , KANDA HIROSHI , KATO SHIGEO , IMAI KUNINORI , SHIOKAWA TAKEJI , TANAKA SHINJI , ISHIKAWA KIYOSHI , ONOZATO AKIMASA , HASHIMOTO HISAYOSHI , TAMURA MORIO , HATANO KAZUYOSHI , SATO FUJIO , ICHIYANAGI TAKESHI , TANAKA KIYOSHI , KAWANUMA TAKAO
IPC分类号： G01N29/24 , G10K11/30 , H04R1/34
摘要： PURPOSE:To enable the manufacturing of an acoustic lens having a lens surface with a small curvature radius at a low cost by building up a lens surface of an acoustic lens with an etching profile formed by etching a substrate material as lens body. CONSTITUTION:First, a layer 12 deposited with chromium and gold as mask layer by etching on the surface of a silicon single crystal substrate 11 is formed and moreover, a resist layer 13 is applied thereon. An etching is performed at a plurality of dot-shaped opening 14 formed at the center position of a lens spherical surface to allow the opening of the dot-shaped openings corresponding to a mask layer 12 as well. Then, the resist film 13 is removed away and an etching is performed for the silicone single crystal substrate 11 through the opening 14 of the mask layer 12 to obtain an etching profile 15 of a semi- spherical surface. Subsequently, in addition, an oxide film SiO2 16 is formed on the semi-spherical surface appearing with the removal of the mask layer 12. Then, an undesired part of the SiO2 film 16 is removed and a piezo-electric element 17 is formed on the back side of the substrate, thereby completing an acoustic lens system with a spherical lens surface 18.

2. 发明专利

JPH03125966A ULTRASONIC PROBE APPARATUS 失效
公开(公告)号：JPH03125966A
公开(公告)日：1991-05-29
申请号：JP26541289
申请日：1989-10-12
申请人： HITACHI CONSTRUCTION MACHINERY , HITACHI LTD
发明人： HASHIMOTO HISANORI , TAMURA MORIO , HATANO KAZUYOSHI , SATO FUJIO , ICHIYANAGI TAKESHI , ISHIKAWA KIYOSHI , KAWANUMA TAKAO , SATO KAZUO , TANAKA SHINJI
IPC分类号： G01N29/24 , H04R1/20 , H04R17/00
摘要： PURPOSE:To easily and effectively perform the alteration to an ultrasonic probe having a different characteristic by moving a substrate provided with a plurality of ultrasonic probes having different characteristics to make it possible to select the arbitrary one probe. CONSTITUTION:A plurality of ultrasonic probes 22A - 22D different in characteristics such as use frequency, resolving power or a use purpose are provided to a sensor block 20 and one of them, for example, the probe 22A is guided to the observing position of a sample 10 by rotating a holder 21 and the voids or cracks present at the specific plane position of the surface and interior of the sample are detected by ultrasonic beam. When the observation due to the probe 22A is completed, a pulse motor 32 is driven by the order of a controller 33 to rotate the holder 21 by 90 deg. and, for example, the lens of the separate probe 22D having different frequency is used to observe the sample 10. As mentioned above, since the probes 22A - 22D different in characteristics can be used while continuously changed over by rotating the block 20, image data different in resolving power are obtained at once and the labor of lens replacement can be omitted and effective measurement can be performed.

3. 发明专利

JPH02240563A ULTRASONIC PROBE 失效
公开(公告)号：JPH02240563A
公开(公告)日：1990-09-25
申请号：JP6119389
申请日：1989-03-14
申请人： HITACHI CONSTRUCTION MACHINERY , HITACHI LTD
发明人： HASHIMOTO HISANORI , TAMURA MORIO , HATANO KAZUYOSHI , SATO FUJIO , ICHIYANAGI TAKESHI , ISHIKAWA KIYOSHI , TANAKA KIYOSHI , KAWANUMA TAKAO , SATO KAZUO , TANAKA SHINJI
IPC分类号： G01N29/24 , H04R17/00
摘要： PURPOSE:To reduce the generation of noise, and also, to reduce the manufacturing cost by forming a peripheral part of the surface of a lens to an aspherical shape in which at least partially the curvature in the depth direction is smaller than the spherical surface of the center part. CONSTITUTION:An ultrasonic wave which travels straight from a piezoelectric film 2 forms a focus on an axis of the lens surface 5 in the center part 5A of the lens surface. On the other hand, in an aspherical part of a peripheral part 5B of the lens surfaces, since the curvature in the depth direction is smaller than the center part 5A at least partially, the ultrasonic wave tends to form a focus in a deeper position than the center part 5A. In this case, a reflected wave 13 returns to the lens surface 5, but it returns to the center part 5A since a reflecting point on the surface of a sample 10 is shifted from the axis of the lens surface 5, and a focal position is different from the peripheral part 5B, the propagation direction in a lens 1 does not become parallel to the axis of the lens surface 5, and does not reach the film 2. Accordingly, information by the peripheral part 5B decreases. That is, the aspherical shape of the peripheral part 5B executes a part of an edge and the generation of a noise is reduced, and also working of the edge becomes unnecessary, and the manufacturing cost can be reduced.

4. 发明专利

JPS63214430A ROD BODY USING COMPOSITE MATERIAL 失效
公开(公告)号：JPS63214430A
公开(公告)日：1988-09-07
申请号：JP4807387
申请日：1987-03-03
申请人： HITACHI CONSTRUCTION MACHINERY , HITACHI LTD
发明人： HASHIMOTO HISANORI , TAMURA MORIO , ICHIYANAGI TAKESHI , KANAMARU NAONOBU
IPC分类号： F16B4/00 , B21D39/00 , B29C65/64 , B29K105/08 , B29L31/00 , F15B15/14
摘要： PURPOSE:To connect a shaft end to a metallic member without cutting off fibrous material and increase tensile strength or the like, by a method wherein the shaft end of a rod member, made of fiber reinforced resin, is fitted into the hollow section of the metallic member and the end face near the hollow section is pushed into the axial direction of the rod member to press the inner peripheral wall of the hollow section to the outer peripheral surface of the shaft end. CONSTITUTION:A rod member 11, consisting of fiber reinforced resin, is formed so as to obtain a round rod and the shaft end 11A of the rod member 11 is fitted into the engaging hole 13B of the base 13A of the metallic member 13. The periphery of the base 13A is restrained by a protecting tube 17 or the like, a punch 16 is penetrated through the rod member 11, pushed by a hydraulic press or the like, to punch a pressurized recess 14 by the tip end of a small diametral protrusion 16B and cause plastic deformation on the base 13A whereby the inner peripheral wall of the engaging hole 13B is pressed to the outer peripheral surface of the shaft end 11A of the rod member 11 to connect the base 13A to the shaft end 11A. Not only the rod member 11 is connected to the metallic member 13 by a pushing part 15 but also the pushing part 15 is formed so as to be convex inwardly into the radial direction of the rod member, therefore, the strength of the fibrous material 12 may be utilized sufficiently to integrate both members strongly without cutting the fibrous material 12 by the pushing part 15.

5. 发明专利

JPH04143629A DIFFERENTIAL PRESSURE SENSOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04143629A
公开(公告)日：1992-05-18
申请号：JP8877890
申请日：1990-04-03
申请人： HITACHI CONSTRUCTION MACHINERY , HITACHI LTD
发明人： SAKAMOTO YUKIO , TAMURA MORIO , ICHIYANAGI TAKESHI , HASHIMOTO HISANORI , SATO FUJIO , HATANO KAZUYOSHI , ONOZATO AKIMASA , KUMAZAWA TETSUO
IPC分类号： G01L9/04 , G01L9/00 , G01L13/02 , G01L13/06
摘要： PURPOSE:To prevent breakdown of a strain detecting part and an electric wiring part and to improve durability and reliability by a construction wherein a support member positioned on the diaphragm surface side whereon a strain detecting part is formed is provided with a sheet member covering an introducing hole. CONSTITUTION:A sensor is constructed in such a manner that a strain detecting part 12 composed of strain gages and others is formed on one side of a thin-plate-shaped metallic diaphragm 9 and that the diaphragm 9 is supported by two support members 10 and 11 made to abut each other from the opposite sides. Besides, pressure medium introducing holes 10a and 11a are formed in the support members 10 and 11 respectively for two pressure receiving surfaces of the diaphragm 9, and, moreover, a sheet member 22 covering the hole 10a of the support member 10 positioned on the side whereon the strain detecting part 12 is formed is fitted to the opening part of the hole. Thereby the strain detecting part 12 and an electric wiring film can be made free completely from a state of contact with liquid. By forming a space wherein a pressure medium is present and a space wherein a part for signal lead-out and connection comprising an electric wiring and others is disposed, in complete separation from each other, protection of these components is made complete and, besides, the diaphragm can have a high durability to high pressure.

6. 发明专利

JPS63214429A TUBULAR BODY USING COMPOSITE MATERIAL 失效
公开(公告)号：JPS63214429A
公开(公告)日：1988-09-07
申请号：JP4807287
申请日：1987-03-03
申请人： HITACHI CONSTRUCTION MACHINERY , HITACHI LTD
发明人： HASHIMOTO HISANORI , TAMURA MORIO , ICHIYANAGI TAKESHI , KANAMARU NAONOBU
IPC分类号： F16B4/00 , B21D39/00 , B29C65/64 , B29K105/06 , B29L31/00 , F15B15/14
摘要： PURPOSE:To avoid cuffing fibrous material, and to increase the tensile strength or the like of the title tubular body remarkably and improve the reliability of the same, by a method wherein a metallic mounting member is fitted to the outer periphery of the tubular member, and a reinforcing member is fitted to the inner periphery of the end of the tubular body, while the end face of a hollow section is pushed axially to press the inner peripheral wall of the mounting member to the outer periphery of the end and pinch the end of the tubular member between the mounting member and the reinforcing member. CONSTITUTION:Resin, with which into a fibrous material 22, is cured by heat, and a mold member is extracted to form a tubular member 21. A step 21B is formed on the inner periphery of an end part 21A, and a reinforcing member 23 is fitted thereto. The end part 21A is inserted into the engaging hole 24A of a mounting member 24, and a punch 27 is penetrated on the outer periphery of the tubular member 21. The punch is pushed by a hydraulic press or the like against the mounting member 24 to punch a pressurized recess 25 while a pushing part 26 is formed in the engaging hole 24A whereby the end part 21A is pinched between the mounting member 24 and the reinforcing member 23 to connect and secure to each other. The pushing part 26 is formed so as to have a depression inwardly in the direction of radius, therefore, the fibrous material 22 will never be cut off and the strength of the same may be utilized to integrate both members.

7. 发明专利

JPH11351259A BEARING OF HYDRAULIC CYLINDER 失效
公开(公告)号：JPH11351259A
公开(公告)日：1999-12-24
申请号：JP15648598
申请日：1998-06-04
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： TAMURA MORIO , ITSUKIDA OSAMU
IPC分类号： F16C17/10 , F16C33/10
摘要： PROBLEM TO BE SOLVED: To provide a bearing of a hydraulic cylinder capable of completely avoiding the slide between a boss and a bracket, and completely preventing generation of disagreeable noise or gnawing. SOLUTION: A bush 2 is provided in a boss 1 at an end part of a hydraulic cylinder, and a pin hole 3a is provided in a bracket 3 fitted with the hydraulic cylinder. A pin hole 2a of the bush 2 is formed of tapered shape with an outer side of the pin hole 2a expanded larger a center part in the axial direction. A pin is split into two pins 4, 5 having tapered shaft parts 4a, 5a with their forward end sides smaller and flange parts 4b, 5b. The tapered shaft parts 4a, 5a of the split pins 4, 5 are fitted to each tapered part of the pin hole 3a of the bracket 3 and the pin hole 2a of the bush 2 from both sides, and the flange parts 4b, 5b are respectively fixed to the bracket 3 by bolts 6.

8. 发明专利

JPH1030640A BEARING DEVICE 失效
公开(公告)号：JPH1030640A
公开(公告)日：1998-02-03
申请号：JP20537096
申请日：1996-07-16
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： SHIMAKURA SHUNSUKE , TAMURA MORIO
IPC分类号： F16C33/10 , F16C11/04
摘要： PROBLEM TO BE SOLVED: To keep lubricity of an oil retaining bush for a long period, to provide an increased life, and to compensate for smooth relative rotation between a boss member and a mating member. SOLUTION: An oil retaining bush 15 impregnated with lubrication oil is fitted in the bush fit-in hole 13A of an arm boss 13. A coupling pin 17 is inserted in the inner peripheral side of the oil retaining bush 15 and an arm boss 13 is rotatably pin-coupled to a bracket 14. A recessed part 16 consisting of an annular recessed groove is arranged in a manner to front on the interior of a bush fit-in hole 13A on the central side of an arm boss 13 and the recessed part 16 is filled with lubricant oil G.

9. 发明专利

JPH09302706A WORKING MACHINE 失效
公开(公告)号：JPH09302706A
公开(公告)日：1997-11-25
申请号：JP14499696
申请日：1996-05-15
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： TAMURA MORIO , AKITA HIDEKI
IPC分类号： E02F3/38 , F16C17/08
摘要： PROBLEM TO BE SOLVED: To make it possible to greatly improve durability and life by definitely preventing the occurrence of a deviated wear at the coupling portion between a working machine and its frame. SOLUTION: A boom 9 is provided at the base end side of a working machine, and the base end side 9B of the boom 9 and a swing frame of an upper swing body are coupled with a spherical bearing 15. Also, a boom cylinder 12 for a boom 9 and the swing frame are coupled by a spherical bearing 21. And the spherical bearings 15 and 21 are formed with female joints 16 and 22, male joints 17 and 23 fitted in these fitting holes 16B and 22A in a sliceable manner, and anti-pull-out plates 19 and 24. Also, the female joint 16 is fixed to the swing frame, and the female joint 22 is fixed to a base seat 16A of the female joint 16. And the male joint 17 and 23 are respectively attached to the base end side 9B of the boom 9 and the base end side of a boom cylinder 12.

10. 发明专利

JPH07161249A HERMETIC SEAL STRUCTURE 失效
公开(公告)号：JPH07161249A
公开(公告)日：1995-06-23
申请号：JP33955893
申请日：1993-12-03
申请人： HITACHI CONSTRUCTION MACHINERY , AOYAMA SEISAKUSHO
发明人： TAMURA MORIO , ICHIYANAGI TAKESHI , TANAKA KIYOSHI , HIDA NOBUYUKI , SATO FUJIO , SHOJI AKIRA
IPC分类号： H01R9/16 , H01B17/30 , H05K7/14
摘要： PURPOSE:To provide a hermetic seal structure capable of performing a seal while directly fixing a band-shaped signal wire having flexibility such as an FPC(flexible printed circuit). CONSTITUTION:In a hermetic seal structure for taking out a differential pressure signal, for instance, detected by a detecting part 11 from the inside (for instance, high pressure condition) to the outside of a housing 1 by a band-shaped signal wire 22 having flexibility, the structure is constituted such that the band-shaped signal wire is interposed by a seal member 21 divided into two parts comprising two members 21A, 21B, so as to build the seal member in a mounting recessed part 1d of the housing 1. The seal member is press fitted to the mounting recessed part of the housing. In interposing the band-shaped signal wire by the seal member, it is preferable to interpose a bonding agent. Further, any one of an external diameter of the seal member and an internal diameter of the mounting part is formed in tapered shape.

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