专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH0412237A STRESS SENSOR 失效
公开(公告)号：JPH0412237A
公开(公告)日：1992-01-16
申请号：JP11306090
申请日：1990-04-28
申请人： TOYODA GOSEI KK , HINO MOTORS LTD
发明人： KIKUTA MITSUHIRO , TERAYAMA TATSUYA , TAKAHASHI YUJI , TAKAHASHI YOSHINORI , MOMIYAMA FUJIO , HARADA KOJI
IPC分类号： G01L3/10 , B62D1/04 , B62D5/06 , G01L5/22
摘要： PURPOSE:To obtain the sensor whose durability is excellent and to improve the assembly workability to a main body member and a moving body by providing a pair of detectors on the main body member, moving a magnetic flux variation member together with the moving body, and varying a magnetic flux of both the detectors by an action of this member. CONSTITUTION:By an action of a magnet 32, a magnetic flux of each coil L1, L2 increases and decreases and their inductance increases and decreases. Also, to the coils L1, L2, a high frequency of prescribed frequency and amplitude is applied in advance, and as for the high frequency after passing through the coils L1, L2, the amplitude is varied in accordance with a variance of the inductance of the coils L1, L2. The variation of the amplitude is detected by a first and second amplitude detecting parts 29, 30, respectively. When an output voltage of this detecting part 29, and an output voltage of the detecting part 30 are denoted as V1 and V2, respectively, the voltage V1 and the voltage V2 are inputted to a non-inversion input terminal of an operational amplifier 34 of a comparing/amplifying circuit 31, and its inversion input terminal, respectively, and a difference (V1 - V2) of both the voltages is amplified by a differential amplifying circuit, and outputted as an output voltage V3 from an output terminal.

2. 发明专利

JPH0344644B2 失效
公开(公告)号：JPH0344644B2
公开(公告)日：1991-07-08
申请号：JP18042186
申请日：1986-07-31
申请人： TOYODA GOSEI KK
发明人： KAWAI MAKOTO , HAYASHI CHIKAHISA , HIROSE YOSHIKAZU , IWAMOTO TAKASHI , TERAYAMA TATSUYA
IPC分类号： G01F23/62

3. 发明专利

JPS63292022A LIQUID LEVEL GAGE 失效
公开(公告)号：JPS63292022A
公开(公告)日：1988-11-29
申请号：JP12953187
申请日：1987-05-26
申请人： TOYODA GOSEI KK
发明人： KAWAI MAKOTO , HAYASHI CHIKAHISA , HIROSE YOSHIKAZU , TERAYAMA TATSUYA
IPC分类号： G01F23/62 , G01F23/68 , G01V3/10
摘要： PURPOSE:To make it possible to detect the amount of liquid in a container, in which relationship between the height of the liquid surface and the amount of the liquid is nonlinear, accurately, by changing the winding density of a coil in a coarse winding part in the coil comprising a dense winding part and the coarse winding part, continuously or stepwise. CONSTITUTION:Liquid 2 is put into a container 1, in which the cross section is changed in the direction of a height H. Then an amount Q of the liquid increases nonlinearly with the increase in height (h) of the liquid level. Then, a conductor ring 8 in a sensing part A also rises up. A coil 7 is wound around a core so that the winding density of a coarse winding part 15 of the coil 7 is changed continuously or stepwise in the direction of the height H of the container. The mutual inductance between the ring 8 and the coil 7 is also changed nonlinearly. The degree of the change in winding density of the coarse winding part 15 is set so that the differential coefficient at the same liquid-level height (h) satisfies ¦dQ/dh¦=¦dL/dh¦. Therefore, the output of a converter circuit B, which converts the inductance L into a voltage and the like, and the liquid amount Q have the linear relationship. The liquid amount, which is displayed on a display part C, agrees with the liquid amount Q in the container 1.

4. 发明专利

JPS62239023A LIQUID LEVEL GAUGE CIRCUIT 失效
公开(公告)号：JPS62239023A
公开(公告)日：1987-10-19
申请号：JP8449086
申请日：1986-04-11
申请人： TOYODA GOSEI KK
发明人： HIROSE YOSHIKAZU , KAWAI MAKOTO , TERAYAMA TATSUYA , HAYASHI CHIKAHISA
IPC分类号： G01F23/26
摘要： PURPOSE:To accurately detect a liquid level by cutting off a pulse voltage when a voltage applied to a resistance reaches a constant reference value lower than the crest value of the pulse voltage. CONSTITUTION:When a pulse voltage Va is outputted from a pulse oscillation circuit 26, a pulse voltage Vb is developed at the output terminal Q of an FF circuit 27 and a pulse voltage Vc is generated at the output terminal, the inversion of Q, but the voltage Vb is 1 and the voltage Vc is 0 when the voltage Va rises. Then, the voltage Vb is applied to an LR series circuit 30 through a transistor (TR) 28 and the rising of the voltage Vb is delayed at the circuit 30 corresponding to the inductance of a coil 16, so a voltage Ve applied to a resistance 29 has a slow rising waveform. When the voltage applied to the resistance 29 reaches the reference voltage Vs of a comparator 31, the comparator 31 outputs a pulse Vd, which is inputted to the input terminal R of the circuit 27. At this time, 0 appears at a terminal S and then the terminal Q of the circuit 27 is in a 0 state, so the voltage Vb applied to the coil 16 is cut off and the liquid level is detected accurately.

5. 发明专利

JPH02290517A LIQUID LEVEL GAUGE 失效
公开(公告)号：JPH02290517A
公开(公告)日：1990-11-30
申请号：JP11126889
申请日：1989-04-28
申请人： TOYODA GOSEI KK
发明人： KAWAI MAKOTO , TERAYAMA TATSUYA , KIKUTA MITSUHIRO , HAYASHI CHIKAHISA
IPC分类号： G01F23/62
摘要： PURPOSE:To make the fluctuation of a voltage outputted by an output correction circuit cancel the fluctuation of the swing of a guidline and to realize the precise operation of the guidline by providing the output correction circuit to an L-V conversion circuit. CONSTITUTION:By magnetic flux occurring around a coil 16, electromagnetic induction occurs to a conductive ring and an over current loss occurs. Since the density of the magnetic flux which is perpendicular to the conductive ring is different according to the relative position of the coil 16 and the conductive ring and the over current loss is also different, the inductance of the coil 16 is changed by the movement of the conductive ring. Besides, since a close coiling part is successively provided to the upper part of the rough coiling part of the coil 16, the distribution of the magnetic flux becomes the asymmetry of top and bottom. Therefore, the inductance of the coil 16 becomes the largest when the conductive ring is situated at a bottom end and it is decreased almost in a straight line according as the ring is moved upward. Then, the voltage VX outputted by the L-V conversion circuit B is outputted to an indicator D as an outputted voltage VM after it is amplified by the output correction circuit C.

6. 发明专利

JPS62257026A MOUNTING STRUCTURE OF LIQUID LEVEL METER 失效
公开(公告)号：JPS62257026A
公开(公告)日：1987-11-09
申请号：JP10147386
申请日：1986-05-01
申请人： TOYODA GOSEI KK , HORIE KINZOKU KOGYO KK
发明人： HAYASHI CHIKAHISA , KAWAI MAKOTO , HIROSE YOSHIKAZU , TERAYAMA TATSUYA , MIYAZAKI SHINJI , YAMAMOTO HIDEO
IPC分类号： G01F23/00 , G01F23/26
摘要： PURPOSE:To accurately detect a liquid level without generating an error, by inserting the lower end of a liquid level meter in the recessed part formed to the bottom surface in a container. CONSTITUTION:A recessed part 3a is formed to the bottom surface 11 in a fuel tank 1 and the lower end of a liquid level meter 10 is inserted in the recessed part 3a. If the fuel tank 1 contracts or expands by the change in temp., the bottom surface 11 moves up and down and a liquid level also moves up and down. At this time, because the recessed part 3a formed to the liquid level meter 10 moves up and down in matching relation to the up-and-down movement of the bottom surface 11, the liquid level meter 10 moves up and down with the lower end thereof kept inserted in the recessed part 3a and is prevented from detaching from the recessed part 3a to shake to a horizontal direction. Therefore, even if contraction or expansion is generated in the fuel tank 1 and the liquid level changes, the liquid level can be accurately detected by the liquid level meter without generating an error.

7. 发明专利

JPS62200231A MANUFACTURE OF LIQUID SURFACE LEVEL METER 失效
公开(公告)号：JPS62200231A
公开(公告)日：1987-09-03
申请号：JP4263686
申请日：1986-02-27
申请人： TOYODA GOSEI KK
发明人： HAYASHI CHIKAHISA , KAWAI MAKOTO , HIROSE YOSHIKAZU , TERAYAMA TATSUYA
IPC分类号： G01F23/00 , G01F23/26
摘要： PURPOSE:To facilitate the manufacture of various tapes of casings, by a method wherein a resin pipe is cut off by measuring the length thereof to form a guide tube section while a head section is formed by an injection molding or a blow molding and then, the guide tube section and the head section are joined together. CONSTITUTION:A casing 10 has a cylindrical guide tube section 12 formed by cutting a nylon resin pipe measuring the length thereof and a head section 13 formed by an injection molding or blow molding of a nylon resin and both 12 and 13 are joined together by hot panel fusing. A sealing section 12a and an engaging section 11 are formed at the lower end of the guide tube section 12 integrated therewith 12 by hot panel fusing. Moreover, a cap section 14 is welded by heat on the upper end face of the head section 13. Thus, a casing 10 is closed to keep fuel from leaking thereinto.

8. 发明专利

JPH05193495A HOSE WITH HARNESS 失效
公开(公告)号：JPH05193495A
公开(公告)日：1993-08-03
申请号：JP657892
申请日：1992-01-17
申请人： TOYODA GOSEI KK
发明人： KODAMA KEIICHI , IKEDA FUMIO , TERAYAMA TATSUYA , KANAI MAKOTO , OMORI NORIO
IPC分类号： B60R16/02 , B60T17/04
摘要： PURPOSE:To attach and detach a harness easily at the time of fitting a hose, and provide structure which applies little stress to the harness even if deflection or twisting is generated in the hose. CONSTITUTION:This hose consists of a hose element 10 whose connector 11 is fixed, a holding member 12 fixed as to be attached and detached to/from the connector 11 freely, and harnesses 13, 15 which are arranged along the hose and extends through the holding member after being fixed to the holding member.

9. 发明专利

JPH0387617A LIQUID LEVEL SENSOR 失效
公开(公告)号：JPH0387617A
公开(公告)日：1991-04-12
申请号：JP22507789
申请日：1989-08-31
申请人： TOYODA GOSEI KK
发明人： KAWAI MAKOTO , NAKAGAMI AKIHIRO , TERAYAMA TATSUYA , HAYASHI CHIKAHISA
IPC分类号： G01F23/62
摘要： PURPOSE:To improve the sealing property between a connector housing and a connector by forming in one body a cylindrical part for covering a substrate and a switch member in a printed board assembly, and the connector housing for covering the connector in an adherence state. CONSTITUTION:A printed board assembly 1 is provided with a printed board 2 consisting of a detecting part 3 for detecting the displacement of a liquid level of brake oil and a connecting part 4 formed integrally in the upper end of its detecting part 3. Also, in the connecting part 4 of the substrate 2, two pieces of connecting terminals 8 connected to a connector extended from an automobile body are provided projectingly in the front. Subsequently, a cylindrical part 24 for covering the substrate 2 and a switch member 5, and a connector housing 26 which is opened in the protruding direction of a connecting terminal 8 of the assembly and covers the connector 6 inserted from its opening part in an adherence state are formed integrally. Therefore, when the connector 6 is inserted from the opening part of this housing 26, this connector 6 and the housing 26 become a state that there is no clearance.

10. 发明专利

JPS6327715A LIQUID LEVEL SENSOR 失效
公开(公告)号：JPS6327715A
公开(公告)日：1988-02-05
申请号：JP17129886
申请日：1986-07-21
申请人： TOYODA GOSEI KK
发明人： HIROSE YOSHIKAZU , HAYASHI CHIKAHISA , KAWAI MAKOTO , TERAYAMA TATSUYA
IPC分类号： G01F23/62
摘要： PURPOSE:To expand the detection range of a liquid level, by providing an overlap part capable of allowing a conductive float to position on the inner or outer peripheral side of a dense wound part. CONSTITUTION:When fuel L is supplied, a conductive float 22 rises along a guide part 12b with the rising of a liquid level 24 and, when the liquid level 24 reaches a head part 12a, the conductive float 22 enters an overlap part 17 and contacts with the head parts 12a to stop the rising of said float 22. As mentioned above, since the guide part 12b is constituted so as to become long between a mount means 23 and the bottom surface 11 of a lower member 3 and the overlap part 17 is further formed between the guide part 12b and the head part 12a to constitute the head part 12a and the guide part 12b so that the conductive float 22 enters the overlap part 17, the conductive float 22 rises to the vicinity of the mount means 23 and, therefore, the detection range of a liquid level can be expanded.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式