JP2018185008A - Slide type constant-velocity universal joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a removal prevention mechanism which enables a user to check the existence/non-existence of a removal prevention plate during assembly and can stably transport an outer joint member during transportation.SOLUTION: A slide type constant-velocity universal joint includes: a cup shaped outer joint member 11; and a tripod member 12 which transmits rotation torque while allowing angular displacement between itself and the outer joint member 11 through a roller 13. An internal component 19 comprising the roller 13 and the tripod member 12 is housed in the outer joint member 11 so as to slide in an axial direction. A removal prevention plate 37 having a flat plate shape is joined to an opening end surface 36 of the outer joint member 11. Axial displacement of the internal component 19 can be restricted by plastic deformation of the removal prevention plate 37.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sliding type constant velocity universal joint that is used in a power transmission system of an automobile or various industrial machines, and is particularly incorporated in a drive shaft or propeller shaft for an automobile.

  There are two types of constant velocity universal joints that are built into drive shafts and propeller shafts that transmit rotational force from an automobile engine to wheels at a constant speed. Both of these constant velocity universal joints have a structure in which two shafts on the driving side and the driven side are connected so that rotational torque can be transmitted at a constant speed even if the two shafts have an operating angle.

  The drive shaft needs to cope with angular displacement and axial displacement due to a change in the relative positional relationship between the engine and the wheels. For this reason, the drive shaft is generally provided with a sliding constant velocity universal joint that allows both axial displacement and angular displacement on the engine side (inboard side) and at the wheel side (outboard side). A fixed type constant velocity universal joint that allows only displacement is provided, and the two constant velocity universal joints are connected by a shaft.

  One of the above-described sliding type constant velocity universal joints is a tripod type constant velocity universal joint (TJ) using a roller as a torque transmission member. Other sliding constant velocity universal joints include a double offset type constant velocity universal joint (DOJ) and a cross groove type constant velocity universal joint (LJ) using a ball as a torque transmission member.

  For example, a tripod constant velocity universal joint includes a cup-shaped outer joint member and a tripod member as an inner joint member that transmits rotational torque while allowing angular displacement between the outer joint member and a roller. And a structure in which an inner part composed of a roller and a tripod member is accommodated in the outer joint member so as to be axially slidable.

  In this tripod type constant velocity universal joint, in order to prevent leakage of the lubricant enclosed in the joint and to prevent foreign matter from entering from the outside of the joint, an opening of the outer joint member, and a shaft extending in the axial direction from the tripod member, In general, a structure in which a boot made of resin or rubber is attached.

  When the drive shaft is assembled to the vehicle body, the fixed constant velocity universal joint is not assembled on the wheel side when the tripod type constant velocity universal joint is assembled on the engine side. Therefore, the tripod type constant velocity universal joint may be subject to the self-weight of the fixed type constant velocity universal joint and the drive shaft including the shaft in the slide-out direction.

  In this case, there may be a slide over in which the internal parts of the tripod type constant velocity universal joint jump out from the opening of the outer joint member. At the time of such a slide-over, it becomes difficult to reinsert the internal part into the outer joint member because the roller of the internal part is inclined.

  Therefore, in the conventional tripod type constant velocity universal joint, in order to prevent the internal parts from sliding over, various retaining mechanisms for restricting the amount of axial displacement of the internal parts housed in the outer joint member are employed. (For example, refer to Patent Document 1).

JP 2007-64397 A

  In the conventional tripod type constant velocity universal joint disclosed in Patent Document 1, a stopper member that regulates the amount of axial displacement of the inner part composed of a roller and a tripod member is provided between the opening of the outer joint member and the end of the boot. It uses a pinched retaining mechanism.

  That is, in the conventional retaining mechanism, when the end of the boot is attached to the opening of the outer joint member, the stopper member is interposed between the opening of the outer joint member and the end of the boot. Therefore, it is difficult to confirm the presence or absence of the stopper member only by visual observation from the outside of the boot.

  In order to solve this problem, it is conceivable to attach the stopper member in advance to the opening of the outer joint member. At that time, the stopper member needs to have a bent portion in order to insert the inner joint member into the outer joint member. However, in that case, it has the following problems.

  That is, in the assembling process of the tripod type constant velocity universal joint, the outer joint member is supplied by a component conveying device such as a rotary hopper. In the component conveying apparatus, the outer joint member is conveyed in a state where the outer joint member is placed on the conveying path with the opening of the outer joint member facing down.

  At this time, if the stopper member attached to the opening of the outer joint member has a bent portion, there is a possibility that the conveying path may be damaged due to rubbing of the bent portion. When such a flaw is attached to the conveying path, the outer joint member is caught and tilted, the supply of the outer joint member is interrupted, and the operation rate of the component conveying device is lowered.

  Therefore, the present invention has been proposed in view of the above-described problems, and the object of the present invention is to prevent the removal of the stopper member during assembly and the stable conveyance of the outer joint member during transportation. An object of the present invention is to provide a sliding type constant velocity universal joint having a mechanism.

  A sliding type constant velocity universal joint according to the present invention includes a cup-shaped outer joint member, and an inner joint member that transmits rotational torque while allowing angular displacement between the outer joint member and the outer joint member via the torque transmission member. The internal parts including the torque transmission member and the inner joint member are accommodated in the outer joint member so as to be axially slidable.

  As a technical means for achieving the above-mentioned object, the present invention joins a flat plate-like retaining plate to the opening end face of the outer joint member, and reduces the axial displacement amount of the internal component by plastic deformation of the retaining plate. It is characterized by being able to regulate.

  The sliding type constant velocity universal joint of the present invention has a structure in which a flat plate-shaped retaining plate is previously joined to the opening end face of the outer joint member. Therefore, in the assembly process of the sliding type constant velocity universal joint, after inserting the internal part into the outer joint member, when attaching the end of the boot to the opening of the outer joint member, the outer joint member from the outside of the boot By visually observing the opening end face, it is possible to easily confirm the presence or absence of the retaining plate.

  Moreover, the retaining plate joined to the opening end surface of the outer joint member has a flat plate shape. From this, in the assembly process of the sliding type constant velocity universal joint, when the outer joint member is transported in a state where the outer joint member is placed on the transport path with the opening portion of the outer joint member facing down by the parts transport device, It is possible to avoid scratching.

  In the assembling process of this sliding type constant velocity universal joint, after the outer joint member is transported by the parts transport device, after inserting the internal parts into the outer joint member, before attaching the end of the boot to the opening of the outer joint member Further, by allowing the flat plate-shaped retaining plate to be plastically deformed, the amount of axial displacement of the internal part can be regulated, thereby making it possible to exert the retaining function of the retaining plate.

  The retaining plate according to the present invention includes a fixed portion joined to the opening end surface of the outer joint member, and an interference portion extending from the fixed portion, and the internal part is formed by plastic deformation by folding the interference portion 180 degrees with respect to the fixed portion. A structure in which the amount of axial displacement can be regulated by the interference portion is desirable.

  If such a structure is adopted, since the plastic deformation of folding the interference part 180 ° with respect to the fixed part is simple, the retaining function that makes it possible to regulate the amount of axial displacement of the internal part at the interference part is easy. It can be demonstrated.

  The retaining plate according to the present invention includes a fixing portion joined to the opening end face of the outer joint member and an interference portion extending from the fixing portion, and bends the interference portion radially inward of the outer joint member with respect to the fixing portion. A structure in which the amount of axial displacement of the internal part can be regulated by the interference portion by plastic deformation is desirable.

  If such a structure is adopted, since the plastic deformation that bends the interference part radially inward of the outer joint member with respect to the fixed part is simple, the axial displacement amount of the internal part can be regulated by the interference part. The retaining function can be easily exhibited.

  The retaining plate according to the present invention preferably has a structure in which a notch portion is provided at a boundary portion between the fixing portion and the interference portion.

  If such a structure is adopted, it becomes easy to plastically deform the interference portion with respect to the fixed portion by the notch portion provided at the boundary portion between the fixed portion and the interference portion.

  The retaining plate according to the present invention preferably has a structure in which a thin portion that communicates with the notch portion is provided at a boundary portion between the fixing portion and the interference portion.

  By adopting such a structure, it becomes even easier to plastically deform the interference portion with respect to the fixed portion by the notch portion and the shank portion provided at the boundary portion between the fixed portion and the interference portion.

  In the present invention, a flat plate-like retaining plate is joined in advance to the opening end face of the outer joint member. Therefore, in the assembly process of the sliding type constant velocity universal joint, when attaching the end of the boot to the opening of the outer joint member, by visually observing the opening end surface of the outer joint member from the outside of the boot, the retaining plate The presence or absence of can be easily confirmed.

  Moreover, the retaining plate joined to the opening end surface of the outer joint member has a flat plate shape. From this, in the assembly process of the sliding type constant velocity universal joint, when the outer joint member is transported in a state where the outer joint member is placed on the transport path with the opening portion of the outer joint member facing down by the parts transport device, It is possible to avoid scratching. Thereby, supply of an outer joint member can be performed smoothly and an operation rate can be improved.

1 is a longitudinal sectional view showing an overall configuration of a tripod type constant velocity universal joint in an embodiment of the present invention. FIG. 2 is a view taken in the direction of arrow X in FIG. 1. It is sectional drawing which shows the retaining plate and outer joint member before plastic deformation. It is sectional drawing which shows the state which accommodated the internal component in the outer joint member of FIG. It is sectional drawing which shows the state which the internal components interfered with the retaining plate after plastic deformation. It is a front view which shows the outer joint member mounted on the conveyance path of a components conveying apparatus. FIG. 2 is a longitudinal sectional view illustrating a state before plastic deformation of a retaining plate that accommodates internal components in the constant velocity universal joint of FIG. 1. It is a Y arrow line view of FIG. It is a longitudinal cross-sectional view which shows the whole structure of a tripod type | mold constant velocity universal joint in other embodiment of this invention. FIG. 10 is a Z arrow view of FIG. 9. It is a front view which shows the state before plastic deformation of the retaining plate joined to the opening end surface of an outer joint member. It is a front view which shows the state after plastic deformation of the retaining plate joined to the opening end surface of the outer joint member. It is a front view which shows an example of a retaining plate. It is a front view which shows the other example of a retaining plate. It is a front view which shows the other example of a retaining plate. It is sectional drawing which shows the whole structure of the drive shaft which assembled | attached the tripod type | mold constant velocity universal joint of FIG.

  An embodiment of a sliding type constant velocity universal joint according to the present invention will be described below in detail with reference to the drawings.

  In the following embodiment, a single roller type tripod type constant velocity universal joint is illustrated. In addition to the single roller type, the present invention can also be applied to a double roller type tripod type constant velocity universal joint capable of reducing vibration during operation.

  In addition to the tripod type constant velocity universal joint, the present invention can also be applied to other sliding type constant velocity universal joints such as a ball type double offset type constant velocity universal joint and a cross groove type constant velocity universal joint. is there.

  A drive shaft that transmits power from an automobile engine to a wheel needs to cope with an angular displacement and an axial displacement caused by a change in the relative positional relationship between the engine and the wheel.

  Therefore, as shown in FIG. 16, the drive shaft is connected to the engine side (the Rzeppa type constant velocity universal joint 1 which is one of the fixed type constant velocity universal joints that allows only angular displacement on the wheel side (outboard side). The tripod type constant velocity universal joint 2, which is one of the sliding constant velocity universal joints that allows both axial displacement and angular displacement, is mounted on the inboard side), and both constant velocity universal joints 1 and 2 are attached. A structure connected by a shaft 3 is provided.

  1 and 2 show the overall configuration of the tripod type constant velocity universal joint 2 assembled to the drive shaft of FIG. 1 is a longitudinal sectional view with respect to the axis of the joint, and FIG. 2 is a view taken in the direction of arrow X in FIG. 1 (in FIG. 2, the boot is omitted and only one roller is shown in cross section).

  The tripod type constant velocity universal joint 2 (hereinafter simply referred to as a constant velocity universal joint) of this embodiment includes an outer joint member 11, a tripod member 12 which is an inner joint member, and three rollers 13 which are torque transmission members. The shaft 3 extending from the tripod member 12 and projecting from the opening 14 of the outer joint member 11 is coupled.

  The outer joint member 11 has a cup shape having an opening 14 at one end, and a shaft portion 15 is integrally formed at the bottom. In the outer joint member 11, three linear track grooves 16 extending in the axial direction are formed at three equal intervals in the circumferential direction of the cylindrical inner peripheral surface 17. Each track groove 16 has a pair of roller guide surfaces 18 facing each other on both inner walls thereof. The roller guide surface 18 has an arc-shaped cross section and extends linearly in the axial direction of the outer joint member 11. Inside the outer joint member 11, an internal component 19 composed of a tripod member 12 and a roller 13 is accommodated so as to be slidable in the axial direction.

  The tripod member 12 has three leg shafts 21 integrally formed radially at equal intervals in the circumferential direction (120 ° intervals) on the outer peripheral surface of a cylindrical boss 20. The leg shaft 21 has a distal end extending in the radial direction to the vicinity of the bottom of the track groove 16, and an outer peripheral surface thereof is generally a cylindrical surface. A shaft end portion 23 of the shaft 3 is coupled to the shaft hole 22 of the boss 20 by spline fitting, and is prevented from coming off from the tripod member 12 by a retaining ring 24.

  A roller 13 is rotatably disposed via a needle roller 25 between the roller guide surface 18 of the outer joint member 11 and the outer peripheral surface of the leg shaft 21. The outer peripheral surface of the roller 13 has an arc shape in vertical section, and is in contact with the roller guide surface 18 by angular contact or circular contact. The inner peripheral surface of the roller 13 is formed in a cylindrical shape. A plurality of needle rollers 25 are arranged between the roller 13 and the leg shaft 21 in a single row full roller state without a cage. The outer peripheral surface of the leg shaft 21 constitutes the inner rolling surface of the needle roller 25, and the inner peripheral surface of the roller 13 constitutes the outer rolling surface of the needle roller 25.

  The needle roller 25 is in contact with the inner washer 26 fitted on the base of the leg shaft 21 on the radially inner side, and is in contact with the outer washer 27 fitted on the tip of the leg shaft 21 on the radially outer side. . The outer washer 27 is prevented from coming off by fitting a retaining ring 29 into an annular groove 28 formed at the tip of the leg shaft 21.

  In the constant velocity universal joint 2 configured as described above, the leg shaft 21 of the tripod member 12 and the roller guide surface 18 of the outer joint member 11 are engaged with each other in the biaxial rotational direction via the roller 13, thereby Rotational torque is transmitted from the motor to the driven side at a constant speed. Further, the roller 13 rolls on the roller guide surface 18 while rotating with respect to the leg shaft 21, thereby allowing relative axial displacement and angular displacement between the outer joint member 11 and the tripod member 12. The

  In this constant velocity universal joint 2, a lubricant such as grease is sealed in the internal space of the outer joint member 11. By this lubricant, when the shaft 3 rotates while taking an operating angle with respect to the outer joint member 11, the sliding portion inside the joint, that is, the outer joint member 11, the tripod member 12 and the roller 13 is configured. Lubricity at the sliding part is secured.

  In the constant velocity universal joint 2, a rubber or resin boot 30 that seals the opening 14 of the outer joint member 11 is mounted between the outer joint member 11 and the shaft 3. The boot 30 prevents leakage of the lubricant sealed inside the joint and prevents foreign matter from entering from the outside of the joint.

  As shown in FIG. 16, the boot 30 has a large-diameter end portion 32 fastened and fixed to the outer peripheral surface of the outer joint member 11 by a boot band 31, and a small-diameter end fastened and fixed to the outer peripheral surface of the shaft 3 by a boot band 33. A portion 34, and a telescopic bellows portion 35 connecting the large diameter end portion 32 and the small diameter end portion 34 and having a diameter reduced from the large diameter end portion 32 toward the small diameter end portion 34 (see FIG. 16). ).

  When the drive shaft having the constant velocity universal joint 2 configured as described above is assembled to the vehicle body, the weight of the drive shaft including the Rzeppa constant velocity universal joint 1 and the shaft 3 may be applied in the slide-out direction. In that case, it is necessary to prevent the slide-out in which the internal component 19 protrudes from the opening 14 (see FIG. 1) of the outer joint member 11.

  Therefore, in the constant velocity universal joint 2 of this embodiment, as shown in FIGS. 1 and 2, a retaining plate 37 that regulates the amount of axial displacement of the internal component 19 is welded to the opening end surface 36 of the outer joint member 11. It has a retaining structure joined by, for example. The retainer plate 37 can be joined by electric resistance welding (projection welding), laser or electron beam welding, other caulking processes, and an adhesive.

  The retaining plate 37 is a simple rectangular flat plate formed by pressing from a metal plate such as SPC, which is an inexpensive material, and has a fixing portion 38 to be joined to the opening end surface 36 of the outer joint member 11 and the fixing portion. 38 and an interference portion 39 extending from 38 (see FIGS. 3 and 4). The retaining plate 37 is capable of regulating the amount of axial displacement of the internal part 19 by plastic deformation by folding the interference part 39 180 ° with respect to the fixed part 38 (see FIG. 5).

  In other words, the retaining plate 37 has a fixed portion 38 attached to the vicinity of the opening end surface 36 of the outer joint member 11 corresponding to the roller guide surface 18 by welding or the like, and is radially inward of the end shape of the roller guide surface 18. The interference portion 39 that protrudes to the roller 13 can interfere with the roller 13 at the time of sliding over (see FIGS. 2 and 5). In this embodiment, a total of six retaining plates 37 are attached to each roller guide surface 18.

  Note that one or more interference portions 39 of the retaining plate 37 are required for one roller 13, but have a function of interfering with the roller 13, and the retaining strength required by the retaining plate 37 is provided. If satisfied, the shape and number can be arbitrarily set. For example, the retaining plate 37 may be attached to three positions with respect to only one roller guide surface 18 of each track groove 16.

  The fixing portion 38 of the retaining plate 37 is provided with a projection 40 for welding on a surface facing the opening end surface 36 of the outer joint member 11. The protrusions 40 can be simultaneously formed by press working when the retaining plate 37 is manufactured. Note that the number and position of the protrusions 40 can be arbitrarily set as long as the retaining strength required by the retaining plate 37 is satisfied.

  Here, in the assembly process of the constant velocity universal joint 2, as shown in FIG. 6, the outer joint member 11 is supplied by a component conveying device 41 such as a rotary hopper. The component conveying device 41 conveys the outer joint member 11 placed on the conveying path 42 with the opening end surface 36 of the outer joint member 11 facing down.

  In this assembly process, first, as shown in FIG. 3, the fixing portion 38 of the flat plate-like retaining plate 37 is attached to the opening end surface 36 of the outer joint member 11 by welding or the like. Accordingly, when the component conveying device 41 (see FIG. 6) conveys the outer joint member 11 on the conveying path 42 with the opening end surface 36 of the outer joint member 11 facing down, It is possible to avoid scratching. As a result, the outer joint member 11 can be supplied smoothly and the operating rate can be improved.

  Thus, after joining the flat plate-shaped retaining plate 37 to the opening end surface 36 of the outer joint member 11, the internal component 19 is housed in the outer joint member 11 as shown in FIGS. 4 and 7. At this time, as shown in FIG. 8, in the retaining plate 37, the interference part 39 extends outward in the radial direction of the outer joint member 11, and the fixing part 38 erodes radially inward from the end shape of the roller guide surface 18. It doesn't stick out. Therefore, the internal component 19 can be inserted into the outer joint member 11.

  After the internal part 19 is inserted into the outer joint member 11, the interference part 39 is folded back 180 ° inward with respect to the fixing part 38 of the retaining plate 37. Due to the plastic deformation of the interference portion 39, as shown in FIGS. 2 and 5, the interference portion 39 protrudes radially inward from the end shape of the roller guide surface 18, and the roller 13 and The amount of axial displacement of the internal component 19 can be regulated by interference.

  Thereafter, the small diameter end portion 32 of the boot 30 is attached to the opening portion 14 of the outer joint member 11. When attaching the small-diameter end 32 of the boot 30 to the opening 14 of the outer joint member 11, a retaining plate 37 is joined in advance to the opening end surface 36 of the outer joint member 11. Thereby, since the retaining plate 37 joined to the opening end surface 36 of the outer joint member 11 can be visually observed from the outside of the boot 30, the presence or absence of the retaining plate 37 can be easily confirmed by image inspection or the like. it can.

  As described above, when the retaining plate 37 is joined to the opening end surface 36 of the outer joint member 11, the roller 13 of the inner component 19 is removed when the inner component 19 is displaced in the axial direction as shown in FIG. The amount of axial displacement of the internal component 19 is regulated by contacting the interference portion 39 of the stop plate 37. Thereby, the slide over which the internal component 19 jumps out from the opening part 14 of the outer joint member 11 can be prevented.

  In particular, when assembling the drive shaft with the tripod type constant velocity universal joint 2 mounted on the vehicle body, the weight of the drive shaft comprising the Rzeppa type constant velocity universal joint 1 (see FIG. 16) and the shaft 3 is the tripod type constant velocity universal joint 2. Even in the case of the slide-out direction, the roller 13 of the internal component 19 interferes with the interference portion 39 of the retaining plate 37, so that the slide-over of the internal component 19 can be reliably prevented. As a result, the drive shaft can be easily assembled.

  In the above embodiment, the retaining plate 37 that has been plastically deformed so that the interference portion 39 is folded back by 180 ° with respect to the fixed portion 38 has been described. However, the present invention is not limited to this, and FIG. 9 and FIG. The retaining plate 43 having a structure as shown in FIG. 9 and 10, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and redundant description is omitted.

  The retaining plate 43 of the embodiment shown in FIGS. 9 and 10 includes a fixing portion 44 joined to the opening end surface 36 of the outer joint member 11, and a periphery of the opening end surface 36 of the outer joint member 11 from both sides of the fixing portion 44. And an interference portion 45 extending in the direction.

  In the retaining plate 43, two interference portions 45 are provided on both sides of the fixing portion 44, so that the inner side surface 17 of the outer joint member 11 is sandwiched between the end portions of the adjacent roller guide surfaces 18 in the radial direction. As a result, the amount of axial displacement of the internal component 19 can be regulated by interfering with the roller 13 at the time of slide over.

  The fixing portion 44 is provided with two welding projections 46 arranged in the circumferential direction at the base portion with respect to the two interference portions 45, but the number and positions of the projections 46 require the retaining plate 43. It can be set arbitrarily as long as it satisfies the resistance to pulling out.

  In the assembly process of the constant velocity universal joint 2, the fixing portion 44 of the flat plate-shaped retaining plate 43 is joined to the opening end surface 36 of the outer joint member 11 by welding or the like. At this time, as shown in FIG. 11, the interference portion 45 of the retaining plate 43 does not protrude radially inward from the end portion shape of the roller guide surface 18. Therefore, the internal component 19 can be inserted from the opening 14 of the outer joint member 11.

  In the retaining plate 43 of this embodiment, after the inner part 19 is inserted into the outer joint member 11, the interference part 45 is bent radially inward of the outer joint member 11 with respect to the fixing part 44 (arrows A to A in the figure). C). Here, a cut portion 47 is provided inside the boundary portion between the fixed portion 44 and the two interference portions 45. The cut portion 47 facilitates bending of the interference portion 45 with respect to the fixed portion 44.

  The interference portion 45 may be bent by simultaneously deforming the interference portion 45 of the retaining plate 43 positioned on the pair of roller guide surfaces 18 facing each other on both inner walls of the track groove 16 of the outer joint member 11. (Arrows A and A, B and B, C and C in the figure). Thereby, the interference part 45 can be bent with a simple and small number of steps. Further, the interference portions 45 on both sides of the retaining plate 43 may be simultaneously deformed by pushing a jig from the outer diameter side of the outer joint member 11 toward the fixing portion 44 (indicated by an arrow A in the figure). C, A and B, B and C).

  The plastic deformation of the interference portion 45 causes the interference portion 45 to protrude radially inward from the end portion shape of the roller guide surface 18 as shown in FIG. The axial displacement amount of the internal component 19 can be regulated (see FIG. 10).

  By adopting the retaining plate 43 configured as described above, the amount of axial displacement of the internal component 19 can be easily deformed by bending the interference portion 45 inward in the radial direction of the outer joint member 11 with respect to the fixed portion 44. Can be regulated by the interference unit 45. Thereby, the retaining function of the retaining plate 43 can be easily exhibited.

  In the above embodiment, in order to facilitate the bending of the interference portion 45 with respect to the fixing portion 44, a structure in which a notch portion 47 is provided inside the boundary portion between the fixing portion 44 and the interference portion 45 as shown in FIG. Although illustrated, the retaining plate 43 may have a structure as shown in FIGS. 14 and 15.

  The retaining plate 43 according to the embodiment shown in FIG. 14 has a structure in which a notch 47 and a notch portion 48 communicating with the notch 47 are provided inside the boundary portion between the fixing portion 44 and the interference portion 45. .

  Thus, by providing the thin portion 48 that communicates with the notch portion 47, it is even easier to plastically deform the interference portion 45 with respect to the fixed portion 44 so as to bend inward in the radial direction of the outer joint member 11. It becomes.

  In this embodiment, a case has been described in which one cutout portion 47 and a thinning portion 48 are provided inside the boundary portion between the fixing portion 44 and the interference portion 45. However, as shown in FIG. You may make it provide the two notch parts 47 and the thin part 48 inside the boundary site | part with 45. FIG.

  As described above, by providing the two cutout portions 47 and the thinning portion 48 on the inner side of the boundary portion between the fixing portion 44 and the interference portion 45, the interference portion 45 is placed in the radial direction of the outer joint member 11 relative to the fixing portion 44. It becomes even easier to be plastically deformed so as to be bent inward.

  The present invention is not limited to the above-described embodiments, and can of course be implemented in various forms without departing from the gist of the present invention. It includes the equivalent meanings recited in the claims and the equivalents recited in the claims, and all modifications within the scope.

11 Outer joint member 12 Inner joint member (tripod member)
13 Torque transmission member (roller)
19 Internal parts 36 Open end face 37 Retaining plate 38 Fixing part 39 Interference part 43 Retaining plate 44 Fixing part 45 Interfering part 47 Notch part 48 Thinning part

Claims (5)

A cup-shaped outer joint member, and an inner joint member that transmits rotational torque while allowing angular displacement between the outer joint member and the outer joint member, the torque transmission member and the inner joint member being A sliding type constant velocity universal joint in which an internal component including the axially slidable accommodation is accommodated in the outer joint member,
A sliding type constant velocity free, characterized in that a flat plate-like retaining plate is joined to the opening end face of the outer joint member, and the amount of axial displacement of the internal part can be regulated by plastic deformation of the retaining plate. Fittings.   The retaining plate includes a fixing portion joined to the opening end surface of the outer joint member, and an interference portion extending from the fixing portion, and by the plastic deformation of folding the interference portion 180 degrees with respect to the fixing portion, The sliding type constant velocity universal joint according to claim 1, wherein the amount of axial displacement of the internal part can be regulated by the interference portion.   The retaining plate includes a fixing portion joined to the opening end surface of the outer joint member, and an interference portion extending from the fixing portion, and the interference portion is radially inward of the outer joint member with respect to the fixing portion. The sliding type constant velocity universal joint according to claim 1, wherein the amount of axial displacement of the internal part can be regulated by an interference part by bending plastic deformation.   The sliding type constant velocity universal joint according to any one of claims 1 to 3, wherein the retaining plate is provided with a notch at a boundary portion between the fixed portion and the interference portion.   The sliding type constant velocity universal joint according to any one of claims 1 to 4, wherein the retaining plate is provided with a relief portion communicating with the notch portion at a boundary portion between the fixing portion and the interference portion. .

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