JP4391166B2 - Suspension link connection structure - Google Patents

Description

  The present invention relates to a suspension link coupling structure using a ball joint.

  Conventional suspension link coupling structures include those shown in FIGS. FIG. 8 is a schematic front view showing a state in which a front wheel is suspended from a vehicle body by a suspension, and FIG. 8 is an exploded perspective view of a main part showing a coupling structure of suspension links.

  As shown in FIG. 8, the left and right front wheels 101 and 103 are suspended from the vehicle body 109 via suspensions 105 and 107.

  The suspensions 105 and 107 are of a double wishbone type, for example, and include lower arms 111a and 11b and upper arms 113a and 113b, respectively. One end portions of the lower arms 111a and 11b and the upper arms 113a and 113b are coupled to the vehicle body side so as to be vertically rotatable. Knuckle spindles 115a and 115b as wheel support members are coupled to the other ends of the lower arms 111a and 11b and the upper arms 113a and 113b. The left and right front wheels 101 and 103 are rotatably supported by the knuckle spindles 115a and 115b.

  In FIG. 8, if the intersections of the extension lines of the lower arms 111a and 111b and the upper arms 113a and 113b are A and B, an oblique line passing through the intersections A and B and the center of the ground contact surface of the left and right front wheels 101 and 103 is shown. When 117A and 117B are drawn, the intersection C becomes the roll center.

  Accordingly, when the angles of the lower arms 111a and 111b and the upper arms 113a and 113b change, the roll center C also changes.

  In general, it can be said that the roll motion of the car is a rotational motion around the roll center C. Therefore, depending on the distance between the roll center C and the center of gravity G of the vehicle body 109, a change in the way of rolling appears and the riding comfort changes. When the distance between the roll center C and the center of gravity G is large, the vehicle is easy to roll, and when the distance is small, the vehicle is difficult to roll. FIG. 9 shows a structure for adjusting the manner of the roll.

  As shown in FIG. 9, the knuckle arm 121 of the knuckle spindle 115b and the lower arm 111b, which is a suspension link, are coupled by a ball joint 119. The connection between the knuckle arm of the knuckle spindle 115a and the lower arm 111a is the same.

  Only the connection between the knuckle spindle 115b and the lower arm 111b will be described.

  The ball joint 119 includes a stud portion 123 having a spherical portion supported on a spherical surface by a socket portion attached to the lower arm 111b side and coupled to the spherical portion. The stud portion 123 is provided with a male screw portion 125, and the knuckle arm 121 is provided with a connecting hole 127. The stud portion 123 is attached to the connection hole 127 so as to pass therethrough, and upper and lower nuts 129 and 131 are screwed onto the male screw portion 125 and fastened to the knuckle arm 121. The stud portion 123 is fastened and fixed to the knuckle arm 121 by a double nut form of nuts 129 and 131.

  Therefore, the coupling interval between the knuckle arm 121 and the lower arm 111b can be adjusted by loosening the nuts 129 and 131, adjusting the insertion position of the stud portion 123 with respect to the connecting hole 127, and tightening the nuts 129 and 131 again. .

  By such adjustment, the inclination angle of the lower arms 111a and 111b in FIG. 8 can be changed. By changing the inclination angle, the positions of the points A and B can be changed, and the distance between the roll center C and the center of gravity G can be adjusted. By this adjustment, it is possible to adjust the way of rolling and change the riding comfort.

However, in the above structure, since the stud portion 123 is simply inserted through the connecting hole 127, there is a problem that the stud portion 123 is likely to rattle with respect to the connecting hole 127.
Further, when a bending force acts on the stud portion 123 by pushing up from the front wheels 101 , 103 or the like, the rattling of the stud portion 123 with respect to the connection hole 127 is combined and a large joint portion between the stud portion 123 and the knuckle arm 121 is large. Bending force will work. Since this bending force may cause the stud portion 123 to be deformed, the stud portion 123 has to be thickened at the joint portion with the knuckle arm 121 in order to ensure strength. If the stud portion 123 is thickened at the joint portion, there is a problem that the entire size including the nuts 129 and 131, the knuckle arm 121, etc. is increased and the weight is increased.

JP 2003-39927 A

  The problem to be solved is that there is a limit in improving the bonding strength between the ball joint stud and the vehicle body side member or the wheel support member.

  The main feature of the present invention is to provide a collar that is fitted to the stud portion and interposed between the spherical portion and the vehicle body side member or the wheel support member to receive the fastening.

  The collar is characterized in that the diameter is gradually increased from the spherical portion side to the vehicle body side member or the wheel support member.

  A spacer is interposed between the collar and the vehicle body side member or the wheel support member.

The collar is formed of a plurality of members that are divided in the axial direction of the stud portion and screwed together, and the length can be changed in the axial direction of the stud portion by changing the screwing position between the plurality of members. It is characterized by that.

The present invention provides a suspension link coupling structure in which either a vehicle body side member or a wheel support member and a suspension link are coupled by a ball joint. The ball joint includes a socket portion, a spherical portion, a stud portion, a pair of fasteners, and a collar. The socket portion is provided on the suspension link side, the spherical portion is supported on the spherical surface by the socket portion, the stud portion has one end coupled to the spherical portion and the other end on the vehicle body side. A member or a wheel support member and a stepped portion between the spherical portion and the vehicle body side member or the wheel support member, and the pair of fasteners are screwed to both ends of the stud portion and The stud portion is fastened to the spherical portion and the vehicle body side member or the wheel support member, and the collar includes the step portion of the stud portion and the vehicle body side member or the wheel. Interposed between the support member and wherein the receiving the fastening by screwing with respect to the vehicle body-side member or the wheel supporting member of the stud portion.

The present invention provides a suspension link coupling structure in which either a vehicle body side member or a wheel support member and a suspension link are coupled by a ball joint. The ball joint includes a socket portion, a spherical portion, a stud portion, a pair of fasteners , and a nut. The socket portion is provided on the suspension link side, the spherical portion is supported on the spherical surface by the socket portion, the stud portion has one end coupled to the spherical portion and the other end is a vehicle body member. or a wheel support member screwed through the pair of fastener screwed on both ends of the stud portion entered into the stud portion and the vehicle body-side member or the wheel supporting member and the spherical portion, the nut Are screwed into the stud portion and fastened to the vehicle body side member or wheel support member between the spherical portion and the vehicle body side member or wheel support member. And features.

  In the suspension link coupling structure of the present invention, the tapered shaft portion of the stud portion is fitted into the tapered hole portion of the vehicle body side member or the wheel support member, and the fastener is fastened to the other end portion penetrating the tapered hole portion. The stud portion can be fastened and fixed to the vehicle body side member or the wheel support member. In addition, the stud portion can be fastened to the spherical portion by fitting a collar to the stud portion, passing the spherical portion of the ball joint through one end of the stud portion, and fastening a fastener to one end portion of the stud portion. it can.

  Therefore, the distance between the spherical portion and the vehicle body side member or the wheel support member can be changed by changing the length of the collar, and the height of the roll center of the vehicle body can be easily adjusted.

  The collar is interposed between the spherical portion and the vehicle body side member or the wheel support member, and can be fastened by a fastener. For this reason, when a bending force acts between the stud portion and the vehicle body side member or the wheel support member due to the pushing force of the wheel, the bending force is transmitted to the collar. By transmitting this bending force, the end face of the collar can come into contact with the vehicle body side member or the wheel support member and receive the bending force.

  Therefore, the bending force acting on the stud portion can be received by the large radius of the collar, and the coupling strength between the stud portion and the vehicle body side member or the wheel support member can be improved.

  Since the coupling strength is improved by interposing the collar, an increase in weight can be suppressed as compared with the case where the strength is improved by increasing the thickness of the entire stud portion.

  In addition, the collar can be tightened with respect to the vehicle body side member or the wheel support member by the fastener, and it is difficult for a gap to be formed between them, and the stud portion is less likely to rattle the vehicle body side member or the wheel support member. can do.

  Since the collar is formed with a gradually increasing diameter from the spherical portion side to the vehicle body side member or the wheel support member, it receives the bending force of the stud portion with a large diameter of the collar while suppressing the overall enlargement of the collar. be able to. Therefore, an increase in weight can be suppressed while further improving the bonding strength.

  Since a spacer is interposed between the collar and the vehicle body side member or the wheel support member, the distance between the spherical portion and the vehicle body side member or the wheel support member can be changed by changing the spacer. The height of the center can be adjusted more easily.

  Since the collar is formed of a plurality of members screwed to each other and the length can be changed, the length of the collar can be changed by adjusting the screwing position of the plurality of members. Therefore, the distance between the spherical portion and the vehicle body side member or the wheel support member can be easily changed, and the height of the roll center can be easily adjusted.

  In the suspension link coupling structure of the present invention, the distance between the stepped portion of the stud portion and the vehicle body side member or the wheel support member is changed by changing the collar, so that the space between the spherical portion and the vehicle body side member or the wheel support member is changed. The height of the roll center can be easily adjusted by changing the distance.

  The bending force acting on the stud portion is transmitted to the collar, the collar strikes the step portion of the stud portion and the vehicle body side member or the wheel support member, and the bending force can be received with a large diameter of the collar. Therefore, the coupling strength between the stud portion and the vehicle body side member or the wheel support member can be improved.

  In addition, the overall weight increase can be suppressed as compared with the case where the coupling strength is improved by increasing the diameter of the stud portion.

  Since the stud portion is threadedly penetrated into the vehicle body side member or the wheel support member, the collar can be tightened between the step portion and the vehicle body side member or the wheel support member. The threaded penetration of the stud portion with respect to the side support member can be tightened with a fastener. For this reason, rattling between the stud portion and the vehicle body side member or the wheel support member is suppressed, the screw surface of the threading penetration is pressed, and the taper tightening is applied to the vehicle body side member or the wheel support member. On the other hand, rattling of the stud portion can be made difficult to occur.

  In the suspension link coupling structure of the present invention, the stud portion can be screwed through the vehicle body side member or the wheel side support member and fastened to the vehicle body side member or the wheel support member with a fastener. Therefore, the height of the roll center can be easily adjusted by adjusting the threading penetration position of the stud portion with respect to the vehicle body side member or the wheel support member.

  In addition, since the threaded penetration of the stud portion with respect to the vehicle body side member or the wheel side support member is tightened with a fastener, the screw surface of the threaded penetration is pressed against the vehicle body side member or wheel. The rattling of the stud portion can be made difficult to occur with respect to the support member.

  The purpose of easily changing the roll center and improving the coupling strength between the stud portion and the vehicle body side member or the wheel support member was realized while suppressing an increase in weight.

  FIG. 1 is a skeleton configuration diagram showing a state where a right front wheel is suspended by a suspension, and FIG. 2 is a cross-sectional view of a main part of a suspension link coupling structure. Since the left front wheel has the same support, the description of the right front wheel is referred to.

  As shown in FIG. 1, the front wheel 1 is rotatably supported by a knuckle spindle 3 as a wheel support member. The knuckle arms 5 and 7 of the knuckle spindle 3 are coupled with a lower arm 9 and an upper arm 11 as suspension links via ball joints 13 and 15, respectively. The other ends of the lower arm 9 and the upper arm 11 are supported by brackets that are vehicle body side members so as to be rotatable up and down by connecting portions 17 and 19.

  A shock absorber is attached between the knuckle spindle 3 and the vehicle body side.

  FIG. 2 shows a suspension link coupling structure using the ball joint 13. As shown in FIG. 2, the ball joint 13 includes a socket portion 21, a spherical portion 23, a stud portion 25, nuts 27 and 29 as a pair of fasteners, and a collar 30.

  The socket portion 21 is attached to an end portion of the lower arm 9.

  The spherical portion 23 is spherically supported by the socket portion 21.

  The stud portion 25 is provided with a male screw portion 33 at one end portion 31. The nut 27 is fastened to the male screw portion 33. A tapered shaft portion 37 is provided at the other end portion 35 of the stud portion 25. The taper shaft portion 37 is fitted in a taper hole portion 39 provided in the knuckle arm 5. A male screw portion 41 is provided at the other end portion 35 of the stud portion 25. The nut 29 is fastened to the male screw portion 41.

  The collar 30 is fitted to the stud portion 25 and is interposed between the spherical portion 23 and the knuckle arm 5 of the knuckle spindle 3. The collar 30 is fastened by the nut 27 between the knuckle arm 5 and the spherical portion 23. In this embodiment, the collar 30 is formed with a gradually increasing diameter from the spherical portion 23 side to the knuckle arm 5 side. The lower end surface 43 of the collar 30 is in contact with the upper surface 45 of the spherical portion 23, and the upper end surface 47 of the collar 30 is in contact with the lower surface 49 of the knuckle arm 5.

  When assembling, only the stud portion 25 is inserted into the tapered hole portion 39 of the knuckle arm 5, and the tapered shaft portion 37 is fitted into the tapered hole portion 39. In this fitted state, the nut 29 is fastened to the male screw portion 41 of the other end portion 35 of the stud portion 25, and the stud portion 25 is fastened and fixed to the knuckle arm 5.

  In this fastening and fixing, the tapered shaft portion 37 can be fastened and fitted into the tapered hole portion 39 with high accuracy, and the stud portion 25 can be reliably supported with respect to the knuckle arm 5 without rattling.

  Next, the spherical portion 23 attached to the collar 30 and the lower arm 9 is sequentially fitted from the one end portion 31 side of the stud portion 25, and the nut 27 is fastened to the male screw portion 33 of the one end portion 31.

  By this fastening, the knuckle arm 5 and the lower arm 9 can be coupled by the ball joint 13. In this case, the distance between the knuckle arm 5 and the spherical portion 23 on the lower arm 9 side can be changed by selecting the length of the collar 30, and the height of the roll center can be easily adjusted.

  By fastening the nut 27, the upper surface 45 of the spherical portion 23 transmits a fastening force to the lower end surface 43 of the collar 30, and the upper end surface 47 of the collar 30 applies the fastening force to the lower surface 49 of the knuckle arm 5 by the fastening force. Hold it. Therefore, the collar 30 is interposed between the spherical portion 23 and the knuckle spindle 3 and receives the fastening of the nut 27.

  In such a configuration, the stud portion 25 may receive a bending force between the knuckle arm 5 and the lower arm 9 due to a push-up force from the front wheel 1 side or the like.

  The bending force input to the stud portion 25 can be received on the lower surface of the knuckle arm 5 with a large diameter of the upper end surface 47 of the collar 30, and the bending force of the stud portion 25 can be reduced. By reducing the bending force, the coupling strength of the stud portion 25 to the knuckle arm 5 can be significantly improved.

  In addition, in the present embodiment, since the collar 30 is formed with a gradually increasing diameter, the diameter of the upper end face 47 can be increased while suppressing an increase in the overall thickness of the collar 30, and an increase in weight is suppressed. However, the bending force can be supported with a larger diameter.

  By using the collar 30, the bonding strength can be improved without increasing the diameter of the entire stud portion 25, and the weight increase of the entire ball joint 13 can be suppressed.

  Here, since the collar 30 has a fitting structure with respect to the stud portion 25 and is fastened between the spherical portion 23 and the knuckle arm 5 by the nut 27, the bending force of the stud portion 25 is reliably ensured. It has a structure to receive.

  In other words, in the above structure, when the tapered shaft portion 37 is fastened to the tapered hole portion 39 by tightening the nut 29, the stud portion 25 is fixed to the knuckle arm 5 in the axial direction.

  At this time, if the collar 30 is formed integrally with the stud portion 25, a gap is generated between the upper end surface 47 and the lower surface 49 depending on the positional relationship between the tapered shaft portion 37 and the collar 30 portion. There is also a possibility that the bending force of the portion 25 cannot be received by the upper end surface 47.

  On the other hand, with the above structure, when the nut 27 is tightened, the upper end surface 47 is securely fastened to the lower surface 49 of the knuckle arm 5, and the bending force of the stud portion 25 can be reliably received by the large diameter of the upper end surface 47. it can.

  The collar 27 can tighten the collar 30 with respect to the knuckle arm 5 of the knuckle spindle 3, making it difficult for a gap to be formed between the two and making it difficult for the knuckle arm 5 to rattle the stud portion 25. it can.

  3 and 4 relate to a second embodiment of the present invention, FIG. 3 is a cross-sectional view of a main part corresponding to FIG. 2 showing a suspension link coupling structure by a ball joint 13A, and FIG. 4 (a) is a plan view of a spacer. (B) is a top view concerning the modification of a spacer. Note that components corresponding to those in the first embodiment are described with the same reference numerals.

  The ball joint 13A of this example has a spacer 51 interposed between the knuckle arm 5 and the collar 30 as shown in FIG. As shown in FIG. 4A, the spacer 51 has a donut shape in a plan view, and a fitting hole 53 is provided at the center. The fitting hole 53 is loosely fitted to the stud portion 25.

  By fastening the nut 27, the lower surface 55 of the spacer 51 hits the upper end surface 47 of the collar 30, and the upper surface 57 of the spacer 51 hits the lower surface 49 of the knuckle arm 5.

  Therefore, also in the present embodiment, as in the first embodiment, the bending force acting on the stud portion 25 can be supported on the knuckle arm 5 with a large diameter on the upper surface of the spacer 51, and the coupling strength is similarly improved. Can do.

  In this embodiment, the height of the roll center can be easily adjusted by changing the thickness of the spacer 51.

  The spacer 51 can be replaced with a spacer 51A as shown in FIG. The spacer 51A was formed in an open shape on one side of the fitting hole 53A. In this spacer 51A, the spacer 51A can be attached to and detached from the stud portion 25 from the lateral direction by slightly loosening the nut 27. For this reason, the height of the roll center can be adjusted very easily by changing the spacer 51A.

  FIG. 5 is a cross-sectional view of an essential part showing a suspension link coupling structure using a ball joint 13B according to a third embodiment of the present invention. Note that components corresponding to those in the first embodiment are described with the same reference numerals.

  The ball joint 13B of this embodiment is formed of a female member 59 and a male member 61 as a plurality of members in which the collar 30B is screwed together as shown in FIG. The male screw portion 65 of the male member 61 is screwed into the female screw portion 63 of the female member 59. A polygonal portion 60 such as a hexagonal shape is provided on the upper portion of the female member 59. A large diameter portion 67 is provided on the upper portion of the male member 61. The large diameter portion 67 is also formed in a polygon such as a hexagonal shape.

  By fastening the nut 27, the collar 30 </ b> B is fastened between the knuckle arm 5 and the spherical portion 23, the lower end surface 43 </ b> B comes into contact with the upper surface 45 of the spherical portion 23, and the upper end surface 47 </ b> B contacts the lower surface 49 of the knuckle arm 5. bump into.

  Therefore, as in the first embodiment, the bending force acting on the stud portion 25 can be supported by the large diameter of the upper end surface 47B of the large diameter portion 67, and the coupling strength can be improved. In addition, the same effects as those of the first embodiment can be achieved.

  In addition, the axial length of the collar 30B can be changed by changing the screwing position of the female member 59 and the male member 61, and the height of the roll center can be easily adjusted.

  That is, in the conventional structure shown in FIG. 9, even if a tool is engaged with the nuts 129 and 131 to rotate the nuts 129 and 131, the stud portion 123 is connected to the connecting hole 127 along with the rotation between the spherical portion and the socket portion. Therefore, the vertical position of the stud portion 123 relative to the knuckle arm 121 cannot be changed unless the whole is disassembled. For this reason, the height adjustment of the roll center becomes large.

  In contrast, in this embodiment, when a jig is engaged with the large-diameter portion 67 of the male member 61 to prevent rotation, and a tool is engaged with the polygonal portion 60 of the female member 59 to rotate the female member 59. In particular, the entire length of the collar 30B can be easily changed even when the weight is high without being disassembled. For this reason, the height of the roll center can be easily adjusted as described above.

  FIG. 6 is a cross-sectional view of a main part of a suspension link coupling structure using a ball joint 13C according to the fourth embodiment of the present invention. Note that components corresponding to those in the first embodiment are described with the same reference numerals.

  In the ball joint 13 </ b> C of the present embodiment, the stud portion 25 </ b> C is gradually formed to have a larger diameter upward as shown in FIG. 6, and the male screw portion 41 </ b> C is formed through the step portion 69. A small diameter step portion 71 is also provided on the one end portion 31 side of the stud portion 25C. The male screw portion 41C is configured to be screwed into a female screw hole 73 provided on the knuckle arm 5 side, and the stud portion 25C is screwed through the knuckle spindle 3.

  A shaft hole portion 75 is provided in the shaft center portion of the male screw portion 41C. On the opening side of the shaft hole portion 75, a polygonal hole for tool engagement, for example, a hexagonal hole 77 is provided.

  The step portion 69 is provided between the spherical portion 23 and the knuckle arm 5, and a collar 30 </ b> C is interposed between the step portion 69 and the knuckle arm 5.

  The collar 30 </ b> C is interposed between the knuckle arm 5 and the stepped portion 69 in a fastening state. The lower end surface 43 </ b> C hits the stepped portion 69 and the upper end surface 47 </ b> C hits the lower surface 49 of the knuckle arm 5.

  At the time of assembly, the collar 30C is fitted to the step portion 69 side of the stud portion 25C, and the male screw portion 41C is screwed into the female screw hole 73 of the knuckle arm 5. A tool is inserted into the hexagonal hole 77, the stud portion 25C is rotated, and the collar 30C is tightened between the knuckle arm 5 and the step portion 69. Next, the nut 29 is fastened to the male screw portion 41 </ b> C, and the male screw portion 41 </ b> C is locked to the knuckle arm 5.

  The spherical portion 23 is fitted to the one end portion 31 of the stud portion 25C, and the nut 27 is fastened to the male screw portion 33. By this fastening, the upper surface 45 of the spherical portion 23 comes into contact with the stepped portion 71 of the stud portion 25C and is fastened and fixed.

  Therefore, also in this embodiment, the bending force acting on the stud portion 25C can be received with a large diameter by the lower end surface 43C of the collar 30C hitting the stepped portion 69 and the upper end surface 47C hitting the lower surface 49 of the knuckle arm 5, Bond strength can be improved.

  Also in this embodiment, the height of the roll center can be easily adjusted by changing the thickness of the collar 30C. In addition, even if the diameter is increased due to the presence of the shaft hole portion 75, or the stud portion 25C is formed so as to gradually increase in diameter upward, an increase in weight can be suppressed as a whole. However, the shaft hole portion 75 can be omitted and the stud portion 25C can be formed solid.

  Since the stud portion 25C is screwed into the knuckle arm 5, the tool is engaged with the hexagonal hole 77 to rotate the stud portion 25C, and the collar 30C is tightened between the step portion 69 and the knuckle arm 5. be able to. In this state, the threaded penetration of the stud portion 25 </ b> C with respect to the knuckle arm 5 can be tightened with the nut 29. For this reason, rattling between the stud portion 25C and the knuckle arm 5 is suppressed, and the screw surface that is threaded through is pressed, and the stud portion 25C is pressed against the knuckle arm 5 similarly to the taper tightening. It is possible to make it difficult to produce rattling.

  FIG. 7 is a cross-sectional view of a principal part corresponding to FIG. 2 of the suspension link coupling structure by the ball joint 13D according to the fifth embodiment of the present invention. Note that components corresponding to those in the fourth embodiment will be described with the same reference numerals.

  In the ball joint 13D of the present embodiment, the male thread portion 41D of the stud portion 25D is formed slightly longer as shown in FIG. 7, and the configuration corresponding to the step portion 69 of the fourth embodiment is eliminated. Further, instead of the collar 30C of the fourth embodiment, the nut 79 is tightened, and the screwing of the male screw portion 41D with respect to the male screw hole 73 is locked by the nut 29 and the double nut of the nut 79.

  Then, the bending force acting on the stud portion 25D is received when the upper end surface 47D of the nut 79 abuts against the lower surface 49 of the knuckle arm 5, so that the bending force can be received with a large diameter as in the above embodiment, and the coupling strength is improved. be able to.

  Also in this embodiment, by providing the shaft hole portion 75, the stud portion 25D can be made hollow, and an increase in weight can be reliably suppressed while increasing the overall diameter. However, the shaft hole 75 can be omitted and the stud 25D can be formed solid.

When the nuts 29 and 79 are loosened, a tool is engaged with the hexagonal hole 77, the stud portion 25D is rotated, and the nuts 29 and 79 are tightened again, the stud portion 25D can be used even when the weight is suspended without any particular disassembly. The vertical position relative to the knuckle arm 5 can be changed. For this reason, also in the present embodiment, the height of the roll center can be easily adjusted.

Since the stud portion 25 </ b> D is threaded through the knuckle arm 5, the threaded penetration can be tightened with nuts 29 and 79 . For this reason, rattling between the stud portion 25D and the knuckle arm 5 is suppressed, the screw surface of the threading through is pressed, and the stud portion 25D is moved against the knuckle arm 5 similarly to the taper tightening. It is possible to make it difficult to produce rattling.

  Although the suspension link coupling structure of the present invention is applied to the coupling portion between the lower arm 9 and the knuckle spindle 3, similarly, the coupling by the ball joint 15 between the upper arm 11 and the knuckle spindle 3 and the coupling portion 17 are also performed. , 19 can be similarly applied to the connecting portion to the vehicle body side member.

  Further, the collar 30 and the like can be formed with a step.

  The structure of the suspension is not particularly limited, and can be widely applied as long as the roll center can be adjusted by changing the coupling position of the suspension link. For example, the present invention can be similarly applied to a strut suspension as well as a double wishbon suspension.

(Example 1) which is a skeleton block diagram which shows the state which suspended the right front wheel with the suspension. (Example 1) which is principal part sectional drawing of a suspension link coupling | bonding structure. (Example 2) which is principal part sectional drawing of a suspension link coupling structure. (A) is a top view of a spacer, (b) is a top view of the spacer which concerns on a modification (Example 2). (Example 3) which is principal part sectional drawing of a suspension link coupling structure. (Example 4) which is principal part sectional drawing of a suspension link coupling structure. (Example 5) which is principal part sectional drawing of a suspension link coupling structure. It is a schematic block diagram of the state which suspended the front wheel with respect to the vehicle body side with the suspension (conventional example). It is a principal part disassembled perspective view of a suspension link coupling structure (conventional example).

Explanation of symbols

1 Front wheel 3 Knuckle spindle (wheel support member)
9 Lower arm (suspension link)
13, 13A, 13B, 13C, 13D Ball joint 21 Socket part 23 Spherical part 25, 25C, 25D Stud part 27, 29, 79 Nut (fastener)
30, 30B, 30C Collar 31 One end 35 Other end 37 Tapered shaft 39 Tapered hole 51, 51A Spacer 59 Female member (member)
61 Male member
69 steps

Claims (6)

In the suspension link coupling structure that couples either the vehicle body side member or the wheel support member and the suspension link by a ball joint,
The ball joint consists of a socket part, a spherical part, a stud part, a pair of fasteners, and a collar,
The socket part is provided on the suspension link side,
The spherical portion is spherically supported by the socket portion,
The stud portion has one end passing through the spherical portion, the other end portion of the tapered shaft portion is fitted into the tapered hole portion of the vehicle body side member or the wheel support member, and the other end portion passes through the tapered hole portion. ,
The pair of fasteners are screwed into both end portions of the stud portion, and the stud portion is fastened to the spherical portion and the vehicle body side member or the wheel support member,
The collar is fitted to the stud portion, and is interposed between the spherical portion and a vehicle body side member or a wheel support member, and receives fastening to the vehicle body side member or the wheel support member via the spherical portion. Suspension link coupling structure. The suspension link coupling structure according to claim 1,
The suspension link coupling structure according to claim 1, wherein the collar is formed with a gradually increasing diameter from the spherical portion side to the vehicle body side member or the wheel support member. The suspension link coupling structure according to claim 2,
A suspension link coupling structure, wherein a spacer is interposed between the collar and the vehicle body side member or the wheel support member. The suspension link coupling structure according to claim 1,
The collar is formed of a plurality of members that are divided in the axial direction of the stud portion and screwed together, and the length can be changed in the axial direction of the stud portion by changing the screwing position between the plurality of members. Suspension link coupling structure characterized by that. In the suspension link coupling structure that couples either the vehicle body side member or the wheel support member and the suspension link by a ball joint,
The ball joint consists of a socket part, a spherical part, a stud part, a pair of fasteners, and a collar,
The socket part is provided on the suspension link side,
The spherical portion is spherically supported by the socket portion,
The stud portion has one end coupled to the spherical portion and the other end threaded through the vehicle body side member or wheel support member and a stepped portion between the spherical portion and the vehicle body side member or wheel support member. Have
The pair of fastener concluded screwed the stud portion at both ends of the stud portion and the vehicle body-side member or the wheel supporting member and the spherical portion,
It said collar includes features that Ru undergoing fastening by screwing with respect to the vehicle body-side member or the wheel supporting member is interposed between the step portion and the vehicle body-side member or the wheel supporting member of the stud portion and the stud portion Suspension link coupling structure. In the suspension link coupling structure that couples either the vehicle body side member or the wheel support member and the suspension link by a ball joint,
The ball joint consists of a socket part, a spherical part, a stud part, a pair of fasteners , and a nut ,
The socket part is provided on the suspension link side,
The spherical portion is spherically supported by the socket portion,
The stud portion has one end coupled to the spherical portion and the other end threaded through the vehicle body side member or the wheel support member,
The pair of fastener screwed on both ends of the stud portion entered into the stud portion and the vehicle body-side member or the wheel supporting member and the spherical portion,
The suspension link coupling structure , wherein the nut is screwed into the stud portion and fastened to the vehicle body side member or wheel support member between the spherical portion and the vehicle body side member or wheel support member .

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