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1. 发明专利

JPH03172634A FRP MEMBER FOR SUSPENSION AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH03172634A
公开(公告)日：1991-07-26
申请号：JP31255689
申请日：1989-12-01
申请人： NHK SPRING CO LTD
发明人： HIROMOTO SHUJI , KITAMURA AKIRA , YOSHINO FUMITAKA , KAMITSUKURI TAKESHI , TAKEHANA TOSHIHIRO
IPC分类号： B60G11/06 , B60G11/00 , B60G11/08 , F16F1/18
摘要： PURPOSE:To provide a spring characteristic for the vertical loads by constituting with a base portion and paired arm pieces branching in two ways from the base portion, fixing ends of the arm pieces to the car body side, and connecting the base portion to the wheel shaft side member. CONSTITUTION:An FRP member 10 comprises a base portion 11 and paired arm pieces 12, 13 branching in two ways from the base portion 11, all as an integral member. The member 10 is formed in an approximate Y shape as a whole for example of a matrix resin 15 such as of epoxy family and continuous reinforcing fibers 16 arranged along the lengths of the arm pieces 12, 13. The ends 17, 18 to be fixed of the arm pieces 12, 13 are fixed to a car body side member with metallic brackets 20, 21. The brackets 20, 21 respectively comprises box portions 22, 23 respectively enclosing the ends 17, 18 of the arm pieces 12, 13, and base portions 26, 27 respectively having attachment holes 24, 25 through which bolts are inserted and secured to the body side members. Therefore, the arm pieces 12, 13 are constituted to avoid interference with the turning locus of a steering wheel 3.

2. 发明专利

JPH03149421A SUSPENSION DEVICE FURNISHED WITH FRP ARMS 失效
公开(公告)号：JPH03149421A
公开(公告)日：1991-06-26
申请号：JP28498289
申请日：1989-11-02
申请人： NHK SPRING CO LTD
发明人： HIROMOTO SHUJI , KITAMURA AKIRA , YOSHINO FUMITAKA , KAMITSUKURI TAKESHI , TAKEHANA TOSHIHIRO
IPC分类号： B60G7/00 , F16F1/18
摘要： PURPOSE:To surely fix the stationary end sides of canti-lever type FRP arms onto a car body and the like by providing each arm couple section which engages each tapered section of FRP arms, with each fixing part so as to be held in such a way as not to be pulled out. CONSTITUTION:Each FRP arm 6 is prevented from being pulled out to the longer direction by coupling each end section of the FRP arms 6 in each arm couple section 25 of stationary parts 10, and the stationary parts 10 are concurrently fixed onto the side of a car body with bolts and the like. Each end section of the FRP arms 6 at the stationary end sides is formed into a divergent tapered shape, or into a curved part such as a L-shaped and the like, each of the aforesaid end sections is held by each arm couple section 25 of the fixing parts 10, it thereby exhibits powerful resistance against load applied to each longer direction of the FRP arms, which intends to pull the arms out.

3. 发明专利

JP2000227525A FILM FORMING DEVICE FOR OPTICAL WAVEGUIDE AND FILM FORMING METHOD FOR OPTICAL WAVEGUIDE 失效
公开(公告)号：JP2000227525A
公开(公告)日：2000-08-15
申请号：JP2845299
申请日：1999-02-05
申请人： NHK SPRING CO LTD
发明人： KAWAGUCHI SHIGERU , YOSHINO FUMITAKA , TAKAHASHI FUMIO
IPC分类号： G02B6/13 , C23C16/44 , C23C16/455
摘要： PROBLEM TO BE SOLVED: To provide a film forming device in which a desired liquefied gas can be stably supplied to a reaction chamber by using advantages of a vapor pressure method and compensating disadvantages of the vapor pressure method. SOLUTION: An oxygen supply source 12 to supply oxygen to a reaction chamber 11 is connected with a main piping 20 to the reaction chamber 11 so that a fast main stream S1 is produced in the main piping 20 by a large amt. of O2 gas flowing in the main piping 20. A branch pipe 22 is connected in the midway of the main piping 20. At the joined portion 40 of the branch pipe 22, the opening of the branch pipe 22 is formed in the side of the flowing direction of the main stream S1 to form the joined flow portion 41. In the joined portion 41, the fast main stream S1 passes to cross over the front face of the opening of the branch pipe 22, which causes decrease in the hydrostatic pressure near the opening of the branch pipe 22. By the negative pressure thus generated, the second gas in the branch pipe 22 is energized so as to be sucked to the main stream S1.

4. 发明专利

JPH11295551A OPTICAL WAVEGUIDE MODULE FOR OPTICAL DEVICE 失效
公开(公告)号：JPH11295551A
公开(公告)日：1999-10-29
申请号：JP10623098
申请日：1998-04-16
申请人： NHK SPRING CO LTD
发明人： YOSHINO FUMITAKA , KAWAGUCHI SHIGERU
IPC分类号： G02B6/30 , G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide an optical waveguide module for optical device capable of suppressing the loss of an optical waveguide and reducing the cost of an optical device. SOLUTION: An optical transmission/reception module 1 as the optical device is provided with this optical waveguide module 2 for disposing an LD 5 and PDs 6a and 6b. The optical waveguide module 2 is provided with a substrate member 3 and a waveguide device 4. In the substrate member 3, the LD 5 and the PDs 6a, 6b are connected to an electrode part 12 provided on a first reference surface 9 consisting of the flat surface of a substrate material 7 and a recessed part 10 or the like is provided. The waveguide device 4 is provided with the optical waveguide 20 formed on the flat surface 20a of a substrate 20 and a height adjustment film 22 and covering the optical waveguide 20. The part along the surface 20a of the height adjustment film 22 is a second reference surface 29. At the time of putting the optical waveguide 21 in the recessed part 10, the optical axis of the main core 26 of the optical waveguide 21 and the optical axis of the LD 5 are positioned on the same plane.

5. 发明专利

JPH04362329A PLATE SPRING EQUIPMENT 失效
公开(公告)号：JPH04362329A
公开(公告)日：1992-12-15
申请号：JP13441391
申请日：1991-06-05
申请人： NHK SPRING CO LTD
发明人： TAKEHANA TOSHIHIRO , YOSHINO FUMITAKA , ANDO TAKASHI
IPC分类号： B60G11/02 , F16F1/18
摘要： PURPOSE:To provide a plate spring equipment which can firmly fix an edge member of a plate spring body made of FRP, and moreover is light in weight. CONSTITUTION:An FRP-made plate spring body 11 consists of matrix resin 26 and unidirectional reinforced fibre 25 embedded in this resin, and is molded into a belt-shape. The unidirectional reinforced fibre 25 is along the longitudinal direction of the plate spring body 11. A spring eye member 12 molded of FRP is set to the plate edge 30 of the plate spring body 11. The spring eye member 12 is formed by injection molding, in a state that the plate edge 30 is embedded, and integrated with the plate edge 30. The spring eye 12 is matrix resin 21 reinforced by short fibre 13. A circular part 31 to prevent coming off of the plate edge 30, is provided to the plate edge 30 positioned inside the spring eye 12.

6. 发明专利

JPH03104721A SUSPENSION FOR VEHICLE 失效
公开(公告)号：JPH03104721A
公开(公告)日：1991-05-01
申请号：JP24112889
申请日：1989-09-18
申请人： NHK SPRING CO LTD
发明人： HIROMOTO SHUJI , KITAMURA AKIRA , YOSHINO FUMITAKA , KAMITSUKURI TAKESHI , TAKEHANA TOSHIHIRO
IPC分类号： B60G9/02 , B60G11/04
摘要： PURPOSE:To realize light weight and stabilizer function without a projection in the upper section by connecting a free end of a pair of arm sections made of FRP whose one end is connected to a car body by a beam section consisting of a beam member which is made of a metal pipe for connecting an arm and stretches in the direction of car width and an intermediate beam member made of FRP. CONSTITUTION:A free end 12 of a pair of arm sections 5, 5 made of FRP whose one end is fixed to a car body at a fixed end 10 is connected by an end beam member 20 of a beam section 6 in the direction of car width. The beam section 6 consists of a pair of beam members 20, 20 made of a steel round pipe and an intermediate beam member 21 made of FRP which is located between the end beam members 20, 20. The cross section of the intermediate beam member 21 is rectangular in which thickness in the up and down directions is larger than width in the forward and backward directions, and the intermediate beam member 21 is connected to a connection box 25 fixed to the end beam member 20 via a tapered wedge spacer 26. This constitution enables to realize light weight suspension and stabilizer function without a projection in a car room.

7. 发明专利

JPH0367746A FRP MEMBER 失效
公开(公告)号：JPH0367746A
公开(公告)日：1991-03-22
申请号：JP20275289
申请日：1989-08-07
申请人： NHK SPRING CO LTD
发明人： HIROMOTO SHUJI , TAKEHANA TOSHIHIRO , YOSHINO FUMITAKA
IPC分类号： B60R19/03 , B60R19/18 , F16F1/18
摘要： PURPOSE:To simply and surely prevent an FRP member from being cracked in its longitudinal direction by setting the plate width of the whole FRP member more than twice its plate thickness, and dividing the FRP member into plural elements in its cross direction, and setting the plate width of each element less than twice the plate thickness. CONSTITUTION:An FRP member 2 is U or J-shapedly or formed from an one- direction reinforcing fiber 17 extending along its longitudinal direction and a matrix resin 18. The FRP member 2 is employed as an impact absorber e.g. for use as the bumper of an automobile and the like and is used in such a way that a load is exerted thereon from the direction in which its radius of curvature is decreased. In this case, the FRP member 2 has its plate width (b) set more than twice its plate thickness (t). Further, the FRP member 2 is divided into plural elements 2a, 2b in its cross direction, at least as its curved portion 2c. The plate width (b') of each element 2a, 2b is set equal to each other and less than twice its plate thickness (t).

8. 发明专利

JP2002040275A METHOD FOR MANUFACTURING OPTICAL WAVEGUIDE 失效
公开(公告)号：JP2002040275A
公开(公告)日：2002-02-06
申请号：JP2000219254
申请日：2000-07-19
申请人： NHK SPRING CO LTD
发明人： YOSHINO FUMITAKA , SENDA TAKAYUKI , KAWAGUCHI SHIGERU
IPC分类号： G02B6/13
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical waveguide, wherein a stable refractive index is obtained by removing impurities, the precision of parts is improved by straightening a warp of a substrate, the assembling precision in connection with the other optical device is also improved and the loss of a signal light is reduced. SOLUTION: In the case the optical waveguide having a core covered with a clad layer is manufactured, the first heating treatment is applied at a lower pressure before the second heating/pressurizing treatment is applied under a high pressure in order to remove voids generated in film formation. Thus, air bubbles of impurities being mixed in film formation are removed, the stable refractive index is obtained and the loss of optical signal is reduced. By the second heating/pressurizing treatment the warp of the substrate caused by the first heating/pressurizing treatment is straightened, precision for parts is improved, whereby the assembling precision in connection with the other optical device is improved, and the loss of optical signal is reduced. Thus, obtained optical waveguide is low in the internal loss including the loss owing to defective assembling with the other parts but high in the precision of the parts, and has high performance.

9. 发明专利

JP2001159719A OPTICAL PARTS 失效
公开(公告)号：JP2001159719A
公开(公告)日：2001-06-12
申请号：JP34418199
申请日：1999-12-03
申请人： NHK SPRING CO LTD
发明人： TAKAHASHI FUMIO , YOSHINO FUMITAKA
IPC分类号： G02B6/42 , G02B6/122
摘要： PROBLEM TO BE SOLVED: To improve the reliability or production yield of optical parts produced by forming optical waveguides and positioning markers on one substrate. SOLUTION: The positioning markers of the optical parts produced by forming optical waveguides and positioning markers on a quartz or silicon substrate are made from a silicon oxide mixed with metal and/or metal oxide or from a material having

10. 发明专利

JPH05213170A SUSPENSION SYSTEM FOR VEHICLE 失效
公开(公告)号：JPH05213170A
公开(公告)日：1993-08-24
申请号：JP2264592
申请日：1992-02-07
申请人： NHK SPRING CO LTD
发明人： YOSHINO FUMITAKA , ANDO TAKASHI
IPC分类号： B60G17/00 , B60G17/015 , B60T8/1761 , B60T8/34 , G01L5/28 , G01M17/00 , G01M17/007
摘要： PURPOSE:To control a brake more properly by detecting braking power and so on to act on a vehicle with high accuracy. CONSTITUTION:A sensor 31a which can detect degree of strain to be generated in a body 12 is provided near an installing part 13 on car body side of the body 12 of a spring also serving as an arm, in a suspension system 10 provided with a FRP-made spring also serving as an arm. An output signal of the sensor 31a is inputted into a controller 50. As the strain of the spring also serving as an arm occurs in the running direction of the vehicle when a brake pedal is stepped on, change of braking power is detected by the sensor 31a. The controller 50 sends out an intensified pressure mode command signal to a brake control device 51 such as ABS, etc., when it is determined that braking power has increased following stepping on the brake pedal. A pressure reducing mode command signal is sent to the brake control device 51, when decrease of the braking power is detected following stepping on the brake pedal.

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