WO2020203479A1 - Structure de fixation de siège de rotule pour joint à rotule - Google Patents

Structure de fixation de siège de rotule pour joint à rotule Download PDF

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Publication number
WO2020203479A1
WO2020203479A1 PCT/JP2020/013089 JP2020013089W WO2020203479A1 WO 2020203479 A1 WO2020203479 A1 WO 2020203479A1 JP 2020013089 W JP2020013089 W JP 2020013089W WO 2020203479 A1 WO2020203479 A1 WO 2020203479A1
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WO
WIPO (PCT)
Prior art keywords
ring
ball
housing
tapered
tapered shape
Prior art date
Application number
PCT/JP2020/013089
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English (en)
Japanese (ja)
Inventor
黒田　茂
裕也 永田
Original Assignee
日本発條株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本発條株式会社 filed Critical 日本発條株式会社
Publication of WO2020203479A1 publication Critical patent/WO2020203479A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints

Definitions

  • the present invention relates to a ball seat fixing structure of a ball joint in a suspension that plays a role of reducing impact from the road surface of a vehicle.
  • the suspension of the vehicle reduces the impact transmitted from the road surface to the vehicle body, and the stabilizer increases the roll rigidity (rigidity against twisting) of the vehicle body.
  • the suspension and stabilizer are connected via a stabilizer link.
  • the stabilizer link is configured with ball joints at both ends of the rod-shaped support bar.
  • the ball portion 10b of the metal ball stud 10 is rotatably housed (included) in the metal cup-shaped housing 11 via the resin ball sheet 12.
  • the resin ball sheet 12 There is a configuration.
  • the ball stud 10 has a structure in which a spherical ball portion 10b is integrally connected to one end of a rod-shaped stud portion 10s.
  • a male screw 10n is engraved on the stud portion 10s, and a flange portion 10a1 and a small collar portion 10a2 extending in a circumferential shape are formed on the tip side (ball portion 10b side) of the male screw 10n so as to be separated from each other.
  • a dust cover 13 is arranged between the flange portion 10a1 and the upper end portion of the housing 11.
  • An iron link 13a is press-fitted and fixed to a connection portion of the dust cover 13 to the upper end portion of the housing 11.
  • a metal support bar 1a is fixed to the outer peripheral surface of the housing 11.
  • the axis of the ball stud 10 is configured to be perpendicular to the horizontal line H as indicated by the vertical line V.
  • the ball sheet 12 including the ball portion 10b is formed by bending the upper end portion 11a of the housing 11 and caulking the bent upper end portion 11a via a C-shaped stopper ring 14 (also referred to as a ring 14).
  • the upper end of the ball sheet 12 has a shape having a tapered surface inclined from a flat surface to the inner peripheral side.
  • the ring 14 has a shape having a flat surface and a tapered surface 14a that cover the upper end portion of the ball sheet 12.
  • the inclination angle of the tapered surface 14a is an angle that satisfies a predetermined swing angle of the ball stud 10 when the ball stud 10 swings (arrow ⁇ 1).
  • the inner surface of the housing 11 has a straight vertical wall having a cross-sectional shape, and the ball sheet 12 is housed on this inner surface.
  • the inner surface of the ball sheet 12 has the shape of a spherical curved surface 12a along the sphere of the ball portion 10b.
  • the spherical curved surface 12a is also referred to as an inner spherical surface 12a or an inner spherical surface 12a of the ball sheet. Examples of the ball joint having such a configuration are those described in Patent Documents 1 to 3.
  • the ball portion 10b and the spherical surface 12a in the ball seat oscillate as the suspension of the vehicle strokes, and the characteristics of the oscillating sliding are the oscillating torque and the rotational torque (each torque). Also called).
  • the frictional force on the inner spherical surface 12a during rotation of the ball portion 10b increases and each torque increases, the riding comfort deteriorates.
  • each torque can be reduced, but at the same time, the elastic lift amount is increased.
  • the elastic lift amount is the amount of movement of the ball portion 10b via the ball sheet 12 in the housing 11.
  • the elastic lift amount becomes large, the ball portion 10b moves greatly in the housing 11 via the ball sheet 12, and the ball joint J becomes loose, which leads to the generation of abnormal noise while the vehicle is running. That is, there is a reciprocal relationship between each torque and the elastic lift amount, such that the elastic lift amount increases as each torque decreases.
  • the ball sheet 12 described above is a resin product and is manufactured by injection molding. Due to the influence of heat shrinkage during molding in this production, the outer surface of the ball sheet 12 does not have a straight shape in cross section but has a tapered shape. Since the outer surface of the tapered ball sheet 12 comes into contact with the inner surface of the straight housing 11, the tightening allowance of the ball portion 10b is reduced. Along with this decrease, the contact between the ball sheet 12 and the housing 11 becomes local, and the elastic lift amount increases.
  • each torque is reduced so as to improve the riding comfort of the vehicle, and the elastic lift is performed.
  • the amount can be reduced so that the ball joint J does not play.
  • the present invention has been made in view of such a background, and enables a step of pressing and fixing a ball sheet for tightening a ball portion in a housing so as to have an appropriate tightening allowance in a short tact time, and a manufacturing cost. It is an object of the present invention to provide a ball sheet fixing structure of a ball joint capable of lowering.
  • the invention according to claim 1 comprises a ball stud in which a metal spherical portion is integrally joined to the other end of a stud portion to which one end is connected to the structure. It has a metal housing that swings and rotatably supports the spherical portion of the ball stud and has an open space on one side, and a resin ball sheet interposed between the housing and the spherical portion.
  • the spherical portion covered with the ball sheet is a ball sheet fixing structure of a ball joint included in the housing, and is set inside the open end portion of the housing and on the ball sheet, and a gap is formed.
  • a C-shaped C-ring formed and an O-shaped O-ring set on the C-ring so as to protrude from the opening end are provided, and the corner of the boundary between the O-ring and the housing is a laser.
  • It is a ball sheet fixing structure of a ball joint characterized in that it is fixed by welding.
  • a process of pressing and fixing a ball sheet for tightening a ball portion in a housing so as to have an appropriate tightening allowance can be performed in a short tact time, and a ball sheet fixing structure for a ball joint that reduces manufacturing costs is provided. can do.
  • FIG. 6 is a sectional view taken along line IV-IV of FIG. It is a top view of the O-ring.
  • FIG. 8 is a sectional view taken along line VV of FIG. It is sectional drawing which cut in the vertical direction the joint part by laser welding of an O-ring and a housing.
  • FIG. 1 is a vertical sectional view of a ball joint according to an embodiment of the present invention.
  • the same parts as those of the components shown in FIG. 15 in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted as appropriate.
  • the difference between the ball joint J1 of the present embodiment shown in FIG. 1 and the conventional ball joint J (FIG. 15) is that the tightening allowance of the ball sheet 22 with respect to the ball portion (sphere portion) 10b in the housing 21 is appropriate.
  • a C-shaped stopper ring (also referred to as a C ring) 24 is placed on the ball sheet 22, and an O-shaped stopper ring (also referred to as an O-ring) 54 is placed on the C ring 24. And set. In this set state, the O-ring 54 is fixed to the upper end of the housing 21 by laser welding. Laser welding is performed using a laser welding device such as a diode laser welding device (not shown).
  • a laser welding device such as a diode laser welding device (not shown).
  • the above-mentioned appropriate tightening allowance is a tightening allowance that can reduce the swing torque and the rotational torque so as to improve the riding comfort of the vehicle, and reduce the elastic lift amount so that the ball joint J1 does not play. ..
  • a set of pressing and compressing the ball sheet 22 with a double ring structure (FIG. 4) was performed so as to obtain this proper tightening allowance, and the set O-ring 54 was laser-welded to the housing 21.
  • FIG. 2 is a perspective view of the C ring 24
  • FIG. 3 is a perspective view of the O-ring 54
  • FIG. 4 is a perspective view showing a double ring structure when the O-ring 54 is placed and stacked on the C-ring 24. is there.
  • the dust cover 13 is omitted in order to make it easier to recognize the characteristic configuration.
  • the stud portion 10s of the ball joint J1 is fixed to a suspension or stabilizer (not shown).
  • the suspension or stabilizer constitutes the structure according to the claim.
  • FIG. 5 is a cross-sectional view of the housing 21.
  • a metal plate such as an iron plate is formed into a cup shape by press molding or cold forging.
  • the opening end portion 21a on the opening side of the housing 21 has a plate thickness t thinner than the plate thickness T of the body portion 21b on the lower side of the opening end portion 21a.
  • the plate thicknesses T and t are preferably the size represented by the following formula (1). 0.3 ⁇ t / T ⁇ 0.7 ... (1)
  • the inner surface of the housing 21 between the plate thickness t of the opening end portion 21a and the plate thickness T of the body portion 21b is a tapered step portion (tapered step portion) P1.
  • the tapered step portion P1 constitutes the first tapered shape portion according to the claim.
  • the taper angle ⁇ 1 of the tapered step portion P1 has a size represented by the following equation (2) in order to properly maintain a balance between the workability of the housing 21 and the centripetal effect described later.
  • the taper angle ⁇ 1 is an inclination angle of the tapered shape portion P1 in the housing 21 with respect to the horizontal line H shown in FIG. 30 ° ⁇ ⁇ 1 ⁇ 60 ° ... (2)
  • FIG. 6 is a plan view of the C ring 24, and FIG. 7 is an IV-IV sectional view of the C ring 24 shown in FIG.
  • the outer shape (C ring outer diameter) R2c of the C ring 24 shown in FIG. 6 has a size such that the C ring 24 can be inserted inside the opening end portion 21a (FIG. 5) of the housing 21.
  • the gap 24g of the C ring 24 has a size larger than that of the neck portion 10d of the constricted portion to which the ball portion 10b on the tip end side of the stud portion 10s shown in FIG. 1 is fixed. That is, the C ring 24 can be set on the ball sheet 22 by passing the gap 24 g through the neck portion 10d.
  • the inner diameter (C ring inner diameter) R1c of the C ring 24 is slightly smaller than the ball diameter (ball ball diameter) R3 of the ball portion 10b shown in FIG.
  • the C ring inner diameter R1 is ⁇ 15.1. This size is determined so that the ball portion 10b does not come off from the C ring 24 when the O-ring 54 held above the ball portion 10b via the C ring 24 is laser welded to the housing 21. It is a laser.
  • the C ring 24 has a cross-sectional shape having a higher height than the C-shaped stopper ring 14 (FIG. 15) of the conventional housing caulking. Therefore, in the C ring 24, the cross-sectional coefficient becomes large, the cross-sectional rigidity increases, strong caulking strength can be secured, and the stud pull-out load increases.
  • a metal material such as SPCC (Steel Plate Cold Commercial: cold-rolled steel plate) or SPHC (Steel Plate Hot Commercial: hot-rolled mild steel plate) can be used for the C ring 24, but a metal material having higher strength is used. As a result, the above strength can be made stronger.
  • the O-ring 54 is formed by using the same material as the C ring 24 or a different material.
  • Rigidity is the degree of difficulty of dimensional change (deformation) with respect to bending or twisting force, and is defined as high rigidity when the deformation is small with respect to the force and low rigidity when the deformation is large. Will be done.
  • the lower end of the outer circumference of the C ring 24 is a tapered shape portion (second tapered shape portion) P2a having the same taper angle ⁇ 1 as the tapered step portion P1 of the housing 21.
  • the tapered shape portion P2a of the C ring 24 is arranged so as to face the tapered step portion P1 of the housing 21.
  • the upper end portion 24b of the C ring 24 is arranged at an intermediate position on the slope of the tapered step portion P1.
  • the tapered shape portion P2a of the C ring 24 is separated from the tapered step portion P1 of the housing 21.
  • the height h1 from the lower surface 24a to the upper surface 24b of the C ring 24 shown in FIG. 7 is the C ring 24 when the C ring 24 shown in FIG. 1 is placed on the ball sheet 22 in the housing 21 as described above.
  • the upper end portion 24b of the above is at a height that is arranged in the middle position of the tapered step portion P1.
  • FIG. 8 is a plan view of the O-ring 54
  • FIG. 9 is a VV cross-sectional view of the O-ring 54 shown in FIG.
  • the outer peripheral lower end portion of the O-ring 54 shown in FIG. 9 is a tapered shape portion (third tapered shape portion) P2b having the same taper angle ⁇ 1 as the tapered shape portion P1 of the housing 21.
  • the inner diameter (O-ring inner diameter) R1o of the O-ring 54 shown in FIG. 8 has a size slightly larger than the ball diameter (ball ball diameter) R3 of the ball portion 10b shown in FIG. For example, when the ball diameter R3 is ⁇ 16.0, the ring inner diameter R1 is ⁇ 16.1. This size is determined so that the O-ring 54 is inserted from the lower side of the ball portion 10b and moved to the upper side of the ball portion 10b.
  • the O-ring outer diameter R2o shown in FIG. 8 has a size in which the O-ring 54 can be inserted inside the opening end portion 21a (FIG. 5) of the housing 21.
  • FIG. 10 when the O-ring 54 is placed on the C-ring 24 placed on the ball sheet 22 in the housing 21, the outer peripheral surface 54d of the O-ring 54 and the inner peripheral surface of the housing 21
  • the ring outer diameter R2 having a radial gap of 0.25 mm or less is preferable. This gap size is determined by restrictions on the laser spot diameter during laser welding and the area of the welded portion.
  • the procedure is as follows. First, the ball sheet 22 is placed in the housing 21, and then the O-ring 54 is fitted from below the ball portion 10b, lifted and held above the neck portion 10d of the stud portion 10s, and the ball portion 10b is held by the ball. It is inserted into the sheet 22. Next, the gap 24g of the C ring 24 is passed through the neck portion 10d of the stud portion 10s that can be seen from the gap between the ball sheet 22 and the O-ring 54, and the passed C ring 24 is placed on the ball sheet 22 in the housing 21. To do. The O-ring 54 is placed on the C-ring 24 to complete the stacking.
  • the height h2 from the lower surface 54a to the upper surface 54b of the O-ring 54 shown in FIG. 9 is the O-ring when the O-ring 54 is placed on the C-ring 24 on the ball sheet 22 in the housing 21 (see FIG. 10).
  • 54 has a height slightly protruding from the housing 21.
  • the height h2 of the O-ring 54 is set to a height that slightly protrudes even when the mounted O-ring 54 is pushed downward via the C ring 24 and set.
  • the height at which the O-ring 54 protrudes after setting is preferably 0.05 mm or more for laser welding described later.
  • the upper end portion 54b of the O-ring 54 protrudes from the open end portion 21a (FIG. 5) of the housing 21.
  • the tapered shape portion P2b of the O-ring 54 is vertically separated from the tapered step portion P1 of the housing 21. This separated state is the same for the tapered portion P2a of the C ring 24 on the lower side of the O-ring 54.
  • both the tapered shape portion P2b of the O-ring 54 and the tapered shape portion P2a of the C ring 24 are pressed. It comes into contact with the tapered step portion P1 and is in a set state in which it does not go down any further.
  • Both the tapered shape portion P2b and the tapered shape portion P2a are also referred to as both tapered portions P2.
  • both tapered portions P2 do not have to come into contact with the tapered step portion P1. That is, when the O-ring 54 is placed on the C ring 24 on the ball sheet 22, both tapered portions P2 are separated from the tapered step portion P1 and face each other, and both tapered portions P2 correspond to the tapered step portion P1.
  • the ball sheet 22 can be properly compressed at a height position between the contact position and the contact position.
  • the O-ring 54 shown in FIG. 9 has a tapered surface 54c on the inner peripheral side of the ring that is inclined at an angle ⁇ 2 with respect to the vertical line V (FIG. 1) when set in the housing 21.
  • the inclination angle ⁇ 2 of the tapered surface 54c is an angle that satisfies the swing angle of the ball stud 10 when the ball stud 10 shown in FIG. 1 swings (arrow ⁇ 1).
  • the O-ring 54 plays a role of receiving the ball stud 10 in the range where the ball stud 10 cannot be received by the C ring 24. Therefore, the inner peripheral surface of the O-ring 54 has a tapered shape (tapered surface 54c).
  • the inner diameter side of the C ring 24 may have a tapered shape (tapered surface) that is inclined at the same angle ⁇ 2 as the tapered surface 54c of the O-ring 54. In the case of this configuration, it is preferable that the tapered surface of the C ring 24 and the tapered surface 54c of the O-ring 54 are flush with each other.
  • the outer housing 21 is lower than the inner O-ring 54 in order to facilitate laser welding from the outside. Due to this height relationship, when the O-ring 54 is pressed by the presser (not shown), the position of the presser is higher than that of the housing 21, so that contact or interference of the presser with the housing 22 can be prevented. ing.
  • the temperature of laser welding shall be above the melting point of the material of the housing 21.
  • the temperature is equal to or higher than the melting point of iron (1300 ° C. or higher).
  • Laser welding has the advantages of less spattering and faster tact time than arc welding.
  • FIG. 11 shows a state in which the boundary between the O-ring 54 and the housing 21 is C-shaped all-around welded 31 shown by a thick line.
  • FIG. 12 shows a state in which the boundary is intermittently welded (intermittent welding) 32, and
  • FIG. 13 shows a state in which the boundary is welded in a pulse shape (pulse welding) 33.
  • Intermittent welding 32 or pulse welding 33 is performed by making the laser output of the laser welding apparatus intermittent or pulsed.
  • FIG. 10 shows the depth of penetration of the boundary by laser welding (referred to as welding depth d1).
  • welding depth d1 the depth of penetration of the boundary by laser welding
  • FIG. 10 is a cross-sectional view in which the joint portion 41 of the O-ring 54 and the housing 21 by laser welding is cut in the vertical direction.
  • the welding depth d1 is set to an appropriate depth at which the resin ball sheet 22 via the C ring 24 on the lower side of the O-ring 54 is not deformed or melted by the amount of electric heat conducted during laser welding.
  • the strength of laser welding is adjusted in order to obtain this appropriate welding depth d1.
  • the limit of the welding depth d1 is determined according to the material of the ball sheet 22, the height of the O-ring 54 and the C ring 24 (that is, the electric heating distance). Further, since the laser welding is performed while rotating the housing 21, the amount of electric heat per unit time is small and the thermal influence on the ball sheet 22 is reduced.
  • the double ring structure in which the O-ring 54 is superposed on the C-ring 24 since the double ring structure in which the O-ring 54 is superposed on the C-ring 24, the heat conduction of the laser welding between the O-ring 54 and the housing 21 is suppressed by the C-ring 24. Since the heat reaching the ball sheet 22 is reduced by this suppression, it is possible to prevent the ball sheet 22 from melting.
  • the penetration depth d1 of laser welding is as described above.
  • the penetration depth d1 is required to have a predetermined depth over a predetermined orbital range. For example, if the penetration depth d1 that can safely clear the required breaking load is 0.2 mm and is required over the entire circumference, if the penetration depth d1 is 0.3 mm, only 2/3 laps are required. With 4 mm, only 1/2 lap is required. If it is too deep, the resin ball sheet 22 will be affected.
  • the welding depth d1 ⁇ welding length plane length such as all circumference, intermittent, pulse shape, etc.
  • Any welding form is possible as long as the required breaking load is satisfied.
  • the O-ring 54 on the C-ring 24 is sunk relative to the tip of the housing 21, the O-ring is laser welded. Since the 54 cannot be aimed, it is preferable that the housing 21 is aimed at the laser welding.
  • the C ring 24 and the O-ring 54 are not fixed to each other, they may rotate relatively when the ball stud 10 swings and slides. Therefore, a plurality of concave portions may be provided on the upper surface of the C ring 24, and a plurality of convex portions may be provided at positions facing the concave portions on the lower surface of the O-ring 54, and the convex portions and the concave portions may be fitted and fixed.
  • the C ring 24 may be provided with a convex portion and the O-ring 54 may be provided with a concave portion.
  • a convex portion that is evenly fitted in the gap of the C ring 24 may be provided on the upper end surface of the ball sheet 22, and this convex portion may be fitted in the gap of the C ring.
  • the C ring 24 is fixed and the O ring 54 is also fixed by laser welding, the O ring 54 and the C ring 24 do not rotate relatively.
  • the ball joint J1 is a ball stud 10 formed by integrally joining a metal ball portion 10b to the other end of a stud portion 10s to which one end is connected to a suspension or stabilizer as a structure, and a ball stud 10. It has a metal housing 21 that swings and rotatably supports the ball portion 10b and has an open space on one side, and a resin ball sheet 22 interposed between the housing 21 and the ball portion 10b. The ball portion 10b covered with the ball sheet 22 is included in the housing 21.
  • the ball sheet fixing structure of the ball joint J1 having this configuration has the following characteristic configuration.
  • the C ring 24 is set inside the opening end 21a of the housing 21 and on the ball sheet 22 to form a gap, and is set on the C ring 24 so as to project from the opening end 21a. It is provided with an O-ring 54. The corner of the boundary between the O-ring 54 and the housing 21 is welded and fixed by laser welding.
  • the O-ring 54 on the C-ring 24 set on the ball sheet 22 in the housing 21 protrudes from the outer housing 21, laser welding can be easily performed from the outside of the housing 21. .. Further, since the O-ring 54 on the ball sheet 22 protrudes from the housing 21, the O-ring 54 can be pressed from above via the C ring 24, and the ball sheet 22 can be easily compressed. Laser welding can be performed in a short time. From these advantages, the process of fixing the ring can be performed in a short tact time, and the cost can be reduced. Further, since the ball portion 10b is rotatably held by the double ring structure of the C ring 24 and the O ring 54, the pull-out load of the ball portion 10b can be increased.
  • a tapered step portion P1 having a predetermined angle is provided on the inner circumference of the opening end portion 21a of the housing 21.
  • a second tapered shape portion P2a capable of contacting the tapered step portion P1 is provided at the lower end of the outer circumference of the C ring 24 at the same angle as the tapered step portion P1.
  • a third tapered shape portion P2b capable of contacting the tapered step portion P1 is provided at the lower end of the outer circumference of the O-ring 54 at the same angle as the tapered step portion P1.
  • both the second tapered shape portion P2a and the third tapered shape portion P2b are set in contact with the tapered step portion P1. Therefore, the centripetal force toward the center of the C ring 24 and the O ring 54 works (centripetal effect), and the coaxiality between the C ring 24 and the O ring 54 and the housing 21 is guaranteed. Therefore, the C ring 24 and the O ring 54 do not rattle.
  • the housing 21 has a height protruding from the upper end of the housing 21 by a predetermined height.
  • the O-ring 54 protrudes from the housing 21, so that the mounted O-ring 54 is passed through the C ring 24. Can be easily set by pushing it downward.
  • the position of the presser is higher than that of the housing 21, so that the presser does not come into contact with or interfere with the housing 21.
  • the inner diameter of the C ring 24 is smaller than the ball diameter of the ball portion 10b, and the inner diameter of the O-ring 54 is larger than the spherical shape of the ball portion 10b.
  • the lower C ring 24 has a large pull-out load of the ball portion 10b, and the gap of the C ring 24 can be followed by the upper O-ring 54. Therefore, the ball portion 10b can be prevented from coming off from the C ring 24 and the O ring 54.
  • the O-ring 54 includes a tapered surface 54c that is inclined at a predetermined angle on the inner peripheral surface of the O-ring 54, and the C-ring 24 is the O-ring when it is set in an overlapping manner with the O-ring 54.
  • the configuration is provided with a tapered surface that is flush with the tapered surface 54c of 54.
  • the ball stud 10 can swing within an appropriate range.
  • the inner peripheral side surface 21Ab of the housing 21A has a straight shape, and the outer peripheral side surfaces of both the C ring 24A and the O-ring 54A placed on the ball sheet 22C in the housing 21A are formed. It may be a straight shape. The straight outer peripheral side surfaces of the C ring 24A and the O ring 54A are in contact with the straight inner peripheral side surface 21Ab of the housing 21A without any gap.
  • the ball joint J1 having a ball seat fixing structure of the present invention can be applied to a joint portion of a robot arm such as an industrial robot or a humanoid robot, or a device in which an arm such as an excavator car or a crane car rotates at the joint portion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Une structure de fixation de siège de rotule pour un joint à rotule (J1) selon la présente invention comprend : un pivot à rotule (10) dans lequel une partie de rotule métallique (10b) est intégralement jointe à l'autre partie d'extrémité d'une partie de tige filetée (10s) dont une partie d'extrémité est reliée à une suspension ou à un stabilisateur ; un boîtier métallique (21) ayant un espace qui supporte une partie de rotule (10b) d'une manière pivotante et rotative et a un côté ouvert ; et un siège de rotule en résine (22) interposé entre le boîtier (21) et la partie de rotule (10b), la partie de rotule (10b) recouverte par le siège de rotule (22) étant incluse dans le boîtier (21). L'invention comporte un anneau en C (24) disposé sur le siège de rotule (22) dans le boîtier (21) et un joint torique (54) disposé sur l'anneau en C (24) pour faire saillie à partir du boîtier (21), et un coin entre le joint torique (54) et le boîtier (21) est soudé au laser.
PCT/JP2020/013089 2019-03-29 2020-03-24 Structure de fixation de siège de rotule pour joint à rotule WO2020203479A1 (fr)

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JP2019068802A JP2020165521A (ja) 2019-03-29 2019-03-29 ボールジョイントのボールシート固定構造
JP2019-068802 2019-03-29

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WO2022070518A1 (fr) 2020-09-30 2022-04-07 エセックス古河マグネットワイヤジャパン株式会社 Dispositif de détachement pour couche de résine de revêtement de fil rectangulaire et procédé de détachement pour couche de résine de revêtement de fil rectangulaire

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587120A (ja) * 1991-03-23 1993-04-06 Trw Ehrenreich Gmbh & Co Kg 自在継手
JPH0532823U (ja) * 1991-10-08 1993-04-30 株式会社リズム ボールジヨイント
DE102005015663A1 (de) * 2005-04-06 2006-10-12 Daimlerchrysler Ag Kugelgelenk
JP2010156466A (ja) * 2004-08-20 2010-07-15 Nhk Spring Co Ltd ボールジョイント

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587120A (ja) * 1991-03-23 1993-04-06 Trw Ehrenreich Gmbh & Co Kg 自在継手
JPH0532823U (ja) * 1991-10-08 1993-04-30 株式会社リズム ボールジヨイント
JP2010156466A (ja) * 2004-08-20 2010-07-15 Nhk Spring Co Ltd ボールジョイント
DE102005015663A1 (de) * 2005-04-06 2006-10-12 Daimlerchrysler Ag Kugelgelenk

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