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1. 发明专利

JPH10236123A TORSION BEAM TYPE SUSPENSION 失效
公开(公告)号：JPH10236123A
公开(公告)日：1998-09-08
申请号：JP6004897
申请日：1997-02-27
申请人： TOYOTA MOTOR CORP
发明人： WATANABE KEI , MURATA TOMOHITO , SHIMATANI HIROYUKI
IPC分类号： B60G7/02 , B60G7/00 , B60G9/04 , B60G21/05
摘要： PROBLEM TO BE SOLVED: To prevent strength deterioration at a connection part, and improve durability of a suspension by providing a fragile part to reduce stress concentration at the connection part of a torsion beam with a trailing arm at a part other than the connection part. SOLUTION: A suspension comprises a pair of trailing arms 10 which are disposed to be apart from each other in a vehicle width direction, and pivotally supported on a car body at a front end part for supporting a wheel to be rotatable, and a torsion beam 12 extended in the vehicle width direction and integrally connected to the trailing arms 10 by weld parts 36 at both ends. The tortion beam 12 is provided with a cutout 38 as a torsional rigidity reducing part to partially reduce torsional rigidity of it at a position apart from the weld part 36, and the trailing arm 10 is provided with a dent 40 as a flexural rigidity reducing part to partially reduce flexural rigidity in a width direction of it between the weld part 36 and a rear end part.

2. 发明专利

JPH1086619A TWIST BEAM TYPE REAR SUSPENSION 失效
公开(公告)号：JPH1086619A
公开(公告)日：1998-04-07
申请号：JP26535496
申请日：1996-09-13
申请人： TOYOTA MOTOR CORP
发明人： SHIMATANI HIROYUKI
IPC分类号： B60G7/02 , B60G9/04
摘要： PROBLEM TO BE SOLVED: To improve operation stability without deteriorating the comfortableness of a vehicle. SOLUTION: A twist beam type rear suspension has a pair of trailing arms 10R and 10L, twist beam 24 to connect these trailing arms, and a pair of tow control links 12R and 12L, which are pivotally supported on the front ends of the trailing arms through the rear side joints 36R and 36L, which are pivotally supported in a car body 14 through front side joints 32R and 32L, and the rear side joints 36R and 36L have axis lines 52R and 52L in the vertical direction of a vehicle, and the shaft lines 64R and 64L of a pair of the tow control links cross each other on the rotary shaft lines 22R and 22L of wheels practically in the central plane 76 of the vehicle viewed from a position above the vehicle or at an intersection 78 in a rear section. In addition, pivotal motion restricting devices 60R and 60L are provided to restrict the pivotal motion of the tow control links in direction other than the periphery of the axial lines.

3. 发明专利

JPH06123328A UPPER SUPPORT FOR SUSPENSION 失效
公开(公告)号：JPH06123328A
公开(公告)日：1994-05-06
申请号：JP27200492
申请日：1992-10-09
申请人： TOYOTA MOTOR CORP
发明人： SHIMATANI HIROYUKI
IPC分类号： B60G15/06 , F16F9/54
摘要： PURPOSE:To improve the durability of a suspension by absorbing the stress in the axial direction with the compressive deformation of an elastic material. CONSTITUTION:A bound side plate 11 and a rebound side plate 12 are fixed to a piston rod 22 of a shock absorber 20. An upper support main body 10a is arranged between both the plates. The upper support main body l0a consists of an inner pipe part 13, to which the piston rod 22 is inserted, a bar body fitting plate 14 having parts 14a, 14b, 14c opposite to the bound side plate 11, the rebound side plate 12 and the inner pipe part 13 with a space, and an elastic material 15 interposed between the car body fitting plate 14 and the bound side plate 11 and the rebound side plate 12.

4. 发明专利

JPH0569713A TRAILING ARM TYPE REAR SUSPENSION 失效
公开(公告)号：JPH0569713A
公开(公告)日：1993-03-23
申请号：JP26101391
申请日：1991-09-12
申请人： TOYOTA MOTOR CORP
发明人： SHIMATANI HIROYUKI
IPC分类号： B60G9/04 , B60G21/055
摘要： PURPOSE:To maintain steering stability, improve comfortable ride and avoid link interference by arranging so that the line connecting pivots on both ends of a control link can be intersected with each other on or backward the axis of wheels in a center plane in the case of observing a vehicle from above. CONSTITUTION:One end of a control link 46R is pivoted by a ball joint 48R on a control lever 50 consisting of a main body 52 on whose both ends brackets 54R are fixed and its other end is pivoted on a twist beam 28 by a ball joint 44R. The height of the center O1R of the ball joint 44R is same as that of the ball joint 48R and it is positioned on more backward and inboard side of vehicles. The line 64R connecting the center O1R with O2R is intersected on the intersection 62 between a rear axle center line 58 and the center plane 60 of the vehicles and the center O2R is positioned on the axis 12R. Therefore, the control link 46R can not disturb the parallel movement in the front/rear direction of the trailing arm 10R and comfortable ride and steering stability can be improved.

5. 发明专利

JPH10181326A TORSION BEAM TYPE SUSPENSION 失效
公开(公告)号：JPH10181326A
公开(公告)日：1998-07-07
申请号：JP34634996
申请日：1996-12-25
申请人： TOYOTA MOTOR CORP
发明人： SHIMATANI HIROYUKI
IPC分类号： B60G9/04 , B60G21/05 , B60G21/055
摘要： PROBLEM TO BE SOLVED: To prevent excess stress from concentrating in a connected portion with a twist beam and a trailing arm while allowing the twist beam functioning as the torsion beam effectively. SOLUTION: A twist beam 12 is formed with three pipe shaped beams 28-32. End parts 28A-32A of respective beams 28-32 are rigidly coupled with both end parts 14A, 14B of a trailing arm 14 by welding with them being penetrated into both the end parts of the trailing arm. Accordingly, excess stress may be prevented from concentrating at a coupled portion with the trailing arm 14 than a case of open cross sectional twist beam while allowing function as the torsion beam become agreeably effective.

6. 发明专利

JPH08192614A REAR WHEEL SUSPENSION DEVICE 失效
公开(公告)号：JPH08192614A
公开(公告)日：1996-07-30
申请号：JP747495
申请日：1995-01-20
申请人： TOYOTA MOTOR CORP
发明人： SHIMATANI HIROYUKI
IPC分类号： B60G9/04
摘要： PURPOSE: To improve the durability of a joint section (bush) laid on an axle beam, regarding a rear wheel suspension device used for supporting the axle beam on a trailing arm. CONSTITUTION: This rear wheel suspension device is used to support an axle beam 2 for mounting a rear wheel 3, on a pair of trailing arms 4 (formed out of a trailing rod 12 and a diagonal rod 13) laid at both lateral ends of a body. In this case, the first bush 5 for jointing the arms 4 to the body in such a state as capable of oscillation is provided, together with joint sections for the second bushes 6 to 8 positioned at a gap along the axial direction of the axle beam 2 for connecting the trailing arms 4 thereto via elastic materials, in such a state as capable of oscillation. In addition, a groove 23 is formed at least on the central section of the axle beam 2, in such a state as having an open cross sectional form.

7. 发明专利

JPH0752625A INDEPENDENT SUSPENSION FOR VEHICLE 失效
公开(公告)号：JPH0752625A
公开(公告)日：1995-02-28
申请号：JP22386693
申请日：1993-08-17
申请人： TOYOTA MOTOR CORP
发明人： SHIMATANI HIROYUKI , MORITA YASUHIRO
IPC分类号： B60G3/28 , B60G11/04
摘要： PURPOSE:To improve the degree of freedom for setting alignment change and improve operation stability in an independent suspension having a carrier and a leaf spring. CONSTITUTION:A carrier 4 for carrying a wheel 16 is pivoted to a leaf spring 2 at its lower end part 6 and connected to a car body at its upper end part 8 for displacing upward and downward. The carrier 4 has an arm part 12 extending in the longitudinal direction and the arm part is connected to the car body or the leaf spring 2 through a link 14. In particular, when the link 14 is connected to the leaf spring 2, the fitting positions of the lower end part 6 and the arm 14 are decided so as to improve lateral rigidity of a suspension.

8. 发明专利

JPH0285003A INDEPENDENT SUSPENSION DEVICE OF VEHICLE 失效
公开(公告)号：JPH0285003A
公开(公告)日：1990-03-26
申请号：JP23682488
申请日：1988-09-21
申请人： TOYOTA MOTOR CORP
发明人： SHIMATANI HIROYUKI
IPC分类号： B60G3/20 , B60G7/00
摘要： PURPOSE:To enlarge the degree of freedom in arranging the axle revolving shaft using less number of parts used by furnishing two arms, which support a wheel carrier with two outer ends situated apart up and down, and providing a third arm to support wheel carrier with one outer end. CONSTITUTION:An axle 18 is rotatably borne by a wheel carrier 10 and fitted with a disc wheel 20 and a tire 22. Through a rubber bushing this carrier 10 is supported by two outer ends 13a, 13b and 15a, 15b of No.1, No.2 arms 12, 14 as an inverted A arm having one inner end 13c and 15c and two outer ends 13a, 13b and 15a, 15b apart up and down and coupled with the body 24 swingably with the aid of inner ends 13c and 15c. Through a ball joint 30 also the carrier 10 is supported by the outer end 17a of No.3 arm 16 having one inner end 17b and one outer end 17a and coupled with the body swingably with aid of the inner end 17b.

9. 发明专利

JPH1128919A SUSPENSION DEVICE 失效
公开(公告)号：JPH1128919A
公开(公告)日：1999-02-02
申请号：JP18671397
申请日：1997-07-11
申请人： TOYOTA MOTOR CORP
发明人： WAKATSUKI HIDEAKI , SHIMATANI HIROYUKI
IPC分类号： B60G7/00
摘要： PROBLEM TO BE SOLVED: To increase a toe-in tendency of a turning outer wheel by positioning a front side instantaneous rotation center of a subframe above a rear side instantaneous rotation center. SOLUTION: In turning a vehicle, a subframe 20 is relatively turned toward the same direction as a vehicle body around the longitudinal axis line passing through the instantaneous rotation center to a vehicle body. In this process, the subframe 20 is turned around the instantaneous rotation center line passing through the front side instantaneous rotation center Sf and the rear side instantaneous rotation center Sr, and the instantaneous rotation center line becomes a straight line tilting upward toward the front side as the front side instantaneous rotation center Sf is positioned above the rear side instantaneous rotation center Sr. In this way, according to the rotation of the subframe 20, the turning outer wheel part in the front side part is moved inward while the turning outer wheel part in the rear side part is moved outward of the vehicle. Therefore, a toe-in tendency of the turning outer wheel can be increased according to the rotation of the subframe 20 around the longitudinal axis line.

10. 发明专利

JPH10230723A TORSION BEAM TYPE SUSPENSION 失效
公开(公告)号：JPH10230723A
公开(公告)日：1998-09-02
申请号：JP5235597
申请日：1997-02-20
申请人： TOYOTA MOTOR CORP
发明人： MURATA TOMOHITO , SHIMATANI HIROYUKI , WATANABE KEI
IPC分类号： B60G9/04
摘要： PROBLEM TO BE SOLVED: To improve the productivity of a torsion beam by preventing the generation of defects such as a crack and a wrinkle at both ends of the torsion beam in a press forming time. SOLUTION: This torsion beam type suspension has a pair of trailing arms 10L and 10R which are provided separating in the lateral direction of a vehicle each other, pivoted to the car body at the front end parts, and support a wheel rotatable at the rear end parts; and a torsion beam 12 extending in the lateral direction of the vehicle, and connected to the trailing arms integrally at the both ends by welding parts 24. The torsion beam has a U-shape cross section opening rearward, the depth of the cross section is increased gradually as going to the both ends, and cuttings 22L and 22R are provided at the bottoms of the U-shape sections of both ends. The cuttings function as a stress releasing part to the drawing process at both ends of the raw material of torsion beam, in the press forming time of the torsion beam.

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