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51. 发明专利

JPH1178471A CONTROL DEVICE FOR HYDROPNEUMATIC SUSPENSION 失效
公开(公告)号：JPH1178471A
公开(公告)日：1999-03-23
申请号：JP28629897
申请日：1997-09-05
申请人： KAYABA INDUSTRY CO LTD
发明人： MATSUMOTO HIROSHI
IPC分类号： B60G17/04 , B60G17/056 , F16F9/50
摘要： PROBLEM TO BE SOLVED: To prevent the increase of a gas spring constant over a long period of time by connecting a sub-tank of closed structure with gas previously filled being shut off from outside air, to apply pressure to a control circuit formed by connecting an accumulator operated as a gas spring, a cylinder, a hydraulic source, and the like. SOLUTION: At the time of applying pressure to a control circuit comprising a cylinder CY with the function of a shock absorber, an accumulator AC operated as a gas spring, a communicating residual pressure control valve BV, and the like, element equipments excluding a sub-tank ST and a cock KV connected thereto, and a hydraulic conduit HL connecting them are assembled to a body. A controller CNT is then driven to actuate a leveling valve LV and a hydraulic pump P, and air is extracted while feeding an operating fluid to the cylinder CY. The cock KV is connected to a hydraulic conduit connected to a main tank MT, and the cock KV is opened. Gas pressure in the sub-tank ST is therefore applied to the whole control circuit to put the circuit in a pressure applied state.

52. 发明专利

JPH10227324A TEMPERATURE COMPENSATING DEVICE FOR GAS SPRING 失效
公开(公告)号：JPH10227324A
公开(公告)日：1998-08-25
申请号：JP4743797
申请日：1997-02-14
申请人： KAYABA INDUSTRY CO LTD
发明人： TAKASE KOJI , MATSUMOTO HIROSHI
IPC分类号： B60J5/10 , B62D25/12 , F16F9/00 , F16F9/52
摘要： PROBLEM TO BE SOLVED: To always support an opening/closing body by a desired bounce by a gas spring regardless of the change of an environmental temperature used, by only using a simple constituent part as a temperature compensating controller. SOLUTION: In this gas spring 1 by which an opening/closing body attached to be opened and closed to a main body part by using a hinge is supported around the hinge while being energized to an opening direction, a heating element 18 is mounted on the outer wall surface of a cylinder 2 in the gas spring 1, and this heating element 18 is connected to a power supply 20 by an electric circuit 19, and also a normally opened thermal switch 21 which is switched on below a set temperature and a normally closed thermal switch 22 which is switched off when the gas spring 1 reaches a desired temperature, are interposed in series on the way to the electric circuit 19.

53. 发明专利

JPH1054405A ROTARY ACTUATOR 失效
公开(公告)号：JPH1054405A
公开(公告)日：1998-02-24
申请号：JP22599396
申请日：1996-08-08
申请人： KAYABA INDUSTRY CO LTD
发明人： MATSUMOTO HIROSHI , HATTORI SHINGO
IPC分类号： B60G21/055 , F15B15/12
摘要： PROBLEM TO BE SOLVED: To miniaturize the pre-load control hydraulic rotary actuator of a torsion bar type stabilizer and stabilize sealing property thereof. SOLUTION: A communicating oil passage mutually communicating with the hydraulic operating fluid chambers of respective groups are composed of ring shape oil passages 34, 35 made of a plug 30 inserted into a shaft 15 and oil holes 36, 37 drilled in the shaft and a rotary actuator 1 is miniaturized by making these communicating oil passages utilizing an existing through hole 29 in the shaft 15. Sealing property is stabilized by giving respective area difference to both side walls of the ring shape oil passages 34, 35 and catching the thrust force added to the plug 30 by oil pressure force with a housing 2, positioning the shaft 15 by pushing the shaft 15 against the housing by the reaction of the thrust force, and fitting a vane axially to the shaft 15 by a key in a relative replacement manner.

54. 发明专利

JPH09188120A ROLL CONTROLLER FOR VEHICLE 失效
公开(公告)号：JPH09188120A
公开(公告)日：1997-07-22
申请号：JP2044196
申请日：1996-01-11
申请人： KAYABA INDUSTRY CO LTD
发明人： MATSUMOTO HIROSHI , HATTORI SHINGO
IPC分类号： B60G17/015 , B60G21/055
摘要： PROBLEM TO BE SOLVED: To ensure good roadholding and handling by disposing in parallel a constant ratio type pressure reduction valve and a check valve communicating with one of variable stiffness force actuator of the stabilizers of the front and rear wheels and applying the pressure difference of the pressure reduction valve disposed between the supply and discharge passages of both stabilizers. SOLUTION: A constant ratio type pressure reduction valve 15a and a check valve 16 are disposed in parallel in supply and discharge passages 13a, 13b, respectively and the pressure difference of a pressure difference control valve 14 is directly transferred to the ports 10, 11 of the actuator of a front wheel side via supply and discharge passages 12a, 12b and it is transferred to the ports 10, 11 of the actuator of a rear wheel side via the supply and discharge passages 13a, 13b and the check valve 16, respectively. Accordingly, the pressure difference applied to the actuator of the rear wheel side is reduced in response to the ratio of pressure reduction of the pressure reduction valve 15a compared to the actuator of the front wheel side to which the pressure difference from the pressure difference control valve 14 is directly applied, to thereby keep the stiffness force applied to the rear wheel side smaller than that to the front wheel side.

55. 发明专利

JPH09123728A VEHICLE ROLLING CONTROLLER 失效
公开(公告)号：JPH09123728A
公开(公告)日：1997-05-13
申请号：JP30653595
申请日：1995-10-31
申请人： KAYABA INDUSTRY CO LTD
发明人： MATSUMOTO HIROSHI
IPC分类号： B60G17/015 , B60G21/055
摘要： PROBLEM TO BE SOLVED: To provide uniform rolling rigidity irrespective of a change in a car weight and to prevent the generation of a grounding reaction force by a turning inner wheel during the movement of an excessive load. SOLUTION: A vehicle weight outputting means 28 for outputting a car weight measuring value signal or a counting value signal is provided, a controller 18 is caused to calculate control instruction values for a control valve 15 and a selector valve 16 at least based on a rolling control signal obtained based on a transverse acceleration signal and the control command values are corrected based on the output value of the vehicle weight outputting means 28.

56. 发明专利

JPH0972370A VALVE STRUCTURE OF HYDRAULIC SHOCK ABSORBER 失效
公开(公告)号：JPH0972370A
公开(公告)日：1997-03-18
申请号：JP24674495
申请日：1995-08-31
申请人： KAYABA INDUSTRY CO LTD
发明人： JO TADASHI , MATSUMOTO HIROSHI
IPC分类号： F16F9/34
摘要： PROBLEM TO BE SOLVED: To obtain a smooth and continuous speed damping force characteristic by throttling a pressure oil passage from a first oil passage being opened by a first valve, by means of a second valve that is deflected by the pressure oil at the time when the descending speed of the piston is increased. SOLUTION: When the descending speed of a piston rod 3 is increased and the pressure for pressedly opening a first valve 20 is increased, the oil pressure of the operating oil inside an oil chamber S1 is increased, and the oil pressure from a second oil passage 26 is applied even to a second valve 25 that has been held to the undersurface of a valve seat 18. At that time, the operating oil passing through a small gap W flows out from the upper side of the second valve 25 to the lower side thereof, and although the oil pressure acting on the second valve 25 is reduced, the second valve 25 receives the oil pressure, and the outer circumferential part thereof deflects downwards. As a result, the passage G between the outer circumferential undersurface of the second valve 25 and the inner circumferential upper surface of the first valve 20 is temporarily throttled, so that a regulated amount of operating oil corresponding to the descending speed is introduced into a reservoir chamber S3 through a bottom case 16 and an oil passage 16a.

57. 发明专利

JPH0966717A SUSPENSION DEVICE 失效
公开(公告)号：JPH0966717A
公开(公告)日：1997-03-11
申请号：JP22533395
申请日：1995-09-01
申请人： KAYABA INDUSTRY CO LTD
发明人： MATSUMOTO HIROSHI
IPC分类号： B60G3/28
摘要： PROBLEM TO BE SOLVED: To provide a suspension device having a large lever ratio and low rigidity in the vicinity of a balanced condition, having high rigidity in a region in which a stroke is large and capable of increasing a change in a lever ratio during this period. SOLUTION: A suspension device is provided with a connecting rod 9 with one end thereof connected to a member displaced together with the movement of a wheel 2, a bell crank 7 displaced together with the vertical movement of a car side or the wheel 2 for interconnecting a member different from the member to which one end of the connecting rod 9 is connected and the other end of the connecting rod 9 and a dumper 8 provided so as to apply a tensile force between the middle way of the bell crank 7 and the car body.

58. 发明专利

JPH08142881A STEERING SYSTEM WITH VARIABLE REDUCTION GEAR RATIO 失效
公开(公告)号：JPH08142881A
公开(公告)日：1996-06-04
申请号：JP31113294
申请日：1994-11-21
申请人： KAYABA INDUSTRY CO LTD
发明人： SAKAI SHIZUKA , KANI AKIRA , MATSUMOTO HIROSHI
IPC分类号： B62D3/08
摘要： PURPOSE: To reduce steering force and make a reduction gear ratio optionally variable by providing a Pitman arm, connected respectively by ball joints in order to transmit power from a gear box to a tire, with a length changing mechanism part for changing the substantial length of the Pitman arm. CONSTITUTION: A length changing mechanism part 36 for changing the length of a Pitman arm 4 operated by the operation of a steering wheel through a gear box is interposed at a connecting part between the Pitman arm 4 and a drag link 5. This length changing mechanism part 36 is provided with lock mechanism 16 released by traction-operating a cable 27 by a release lever 29 to detach a claw 18 from a groove 17a. A joint 15 is pulled through the cable 14 by depressing a pedal 21 in the released state of the lock mechanism so as to move a connecting point of the drag link 5 and Pitman arm 4 from A to B, thus substantially shortening the length of the Pitman arm 4.

59. 发明专利

JPH0642667A SOLENOID VALVE 失效
公开(公告)号：JPH0642667A
公开(公告)日：1994-02-18
申请号：JP19424092
申请日：1992-07-21
申请人： KAYABA INDUSTRY CO LTD
发明人： KASHIMA MITSUHIRO , MATSUMOTO HIROSHI
IPC分类号： F16K31/06
摘要： PURPOSE:To make a solenoid valve small-sized and lightweight and to obtain a high degree of accuracy by fitting a plunger provided at its one end with a pin which can be seated on a valve seat, in a tube located between a one end face of a solenoid core and a one end face of a valve body. CONSTITUTION:A solenoid coil 3 is attached to the inner periphery of a cylindrical yoke as a solenoid body, and a solenoid core 2 having a cylindrical part 21 is screwed into the inner periphery of one end part of the yoke 1 so that the cylindrical part 21 is projected into the yoke 1. A nonmagnetic tube 10 is interposed between a one end face 26 of the solenoid core 1 and a one end face 16 of the yoke 1 through the intermediary of seal members 14, 15, and a through-hole 18 having a diameter equal to the inner diameter of the tube 10 is formed in the end part of the yoke 1 adjacent to a valve seat 7. A magnetic cylindrical plunger 4 urged rightward by a spring 8 is slidably fitted in the inner periphery of the tube 10, and a guide 4 in which a pin adapted to be seated on the valve seat 7 is press-fitted, is fitted in one end part of the plunger 4.

60. 发明专利

JPH05180259A DAMPING FORCE ADJUSTMENT TYPE SHOCK ABSORBER 失效
公开(公告)号：JPH05180259A
公开(公告)日：1993-07-20
申请号：JP35892091
申请日：1991-12-27
申请人： KAYABA INDUSTRY CO LTD
发明人： MATSUMOTO HIROSHI
IPC分类号： B60G13/08 , B60G17/015 , B60G17/08 , F16F9/348 , F16F9/46 , F16F9/50
摘要： PURPOSE:To improve a vibration characteristic by providing an extention side and a pressure side check valves, a communicating cell and a reserver cell in a shock absorber and arranging a pair of a leaf valve and a poppet valve on a damping valve for both extension and pressure. CONSTITUTION:In an extension process, oil in a piston upper cell 3 is stopped by an extension side check valve 2, flows from a communicating hole 11 to a communicating cell 12, stopped by a pressure side check valve 6 in a pressure process and oil in a piston lower cell 5 opens the extension side check valve 2, flows to the piston upper cell 3 and excess oil flows from the communicating hole 11 to the communicating cell 12. The oil flown to the communicating cell 12 works on a primary and a secondary pressure cells 16, 22 of a damping valve 15 for both extension and pressure, and at the time when a poppet valve 24 closes, the oil of the primary pressure cell 16 opens a leaf valve 17 and returns to an oil sack 20. As cracking pressure of the leaf valve 17 gives initial deflection, high damping force is generated. At the time when the poppet 24 opens, a valve body 23 works until pressure of the primary and secondary pressure cells 16, 22 and spring force of the leaf valves 17, 30 are balanced, an initial deflection amount decreases, and low damping force can be obtained.

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