JP2008298239A - Slide type constant velocity universal joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide type constant velocity universal joint, inexpensively manufacturable by less labor, by preventing slipping-out of an inside joint member and a torque transmission member with a simple constitution. <P>SOLUTION: This slide type constant velocity universal joint has a cylindrical slipping-out preventive member 5 in the opening vicinity of an inner peripheral surface 1a of an outside joint member 1. An outer diameter ψD1 of the slipping-out preventive member 5 and an inner diameter ψD2 of the outside joint member 1 satisfy the relationship of ψD1 > ψD2. The slipping-out preventive member 5 is pressed, fitted and joined in the outside joint member 1. When the outside joint member 1 and the inside joint member 2 relatively move in the axial direction, a ball 3 reaching the opening vicinity of the outside joint member 1 interferes with the slipping-out preventive member 5. Falling-off of the ball 3 is prevented by frictional resistance between an outer peripheral surface of the slipping-out preventive member 5 and an inner peripheral surface of the outside joint member 1, and slipping-out of the inside joint member 2, the ball 3 and a cage 4 is prevented. This slide type constant velocity universal joint is more easily and inexpensively manufactured than when preventing slipping-out by installing a circlip in a groove in the peripheral direction of the inner peripheral surface of the outside joint member. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sliding-type constant velocity universal joint that is used in a power transmission device for automobiles and various industrial machines, and that is capable of axial displacement and angular displacement between a drive shaft and a driven shaft.

  Sliding constant velocity universal joints that allow both angular displacement and axial displacement are used in the power transmission systems of automobiles and various industrial machines, such as the drive shafts of front-wheel drive vehicles and independent-suspension-type rear-wheel drive vehicles. ing. As this sliding type constant velocity universal joint, a ball type double offset type constant velocity universal joint (DOJ) using a ball as a torque transmission element is well known.

  As shown in FIG. 12, this type of sliding constant velocity universal joint includes an outer joint member 1 attached to a differential on the vehicle body side, an inner joint member 2 attached to one end of an intermediate shaft, an outer joint member 1 and The main components are a plurality of balls 3 incorporated between the inner joint members 2 and a cage 4 that is interposed between the outer joint member 1 and the inner joint member 2 and holds the balls 3.

  The outer joint member 1 has a shape with an open end, and a plurality of linear track grooves 11 parallel to the axis are formed on the inner peripheral surface 1a. The inner joint member 2 is formed with a plurality of track grooves 21 parallel to the axis on the outer peripheral surface 2 a so as to correspond to the track grooves 11 of the outer joint member 1. A ball 3 for transmitting torque is disposed on a ball track formed by the track groove 11 of the outer joint member 1 and the track groove 21 of the inner joint member 2 in cooperation. Each ball 3 is accommodated in a pocket 41 of a cage 4 interposed between an inner peripheral surface 1 a of the outer joint member 1 and an outer peripheral surface 2 a of the inner joint member 2.

  The sliding type constant velocity universal joint holds the ball 3 within the bisector of the operating angle by the cage 4 when transmitting the rotational torque while taking the operating angle. Further, when the outer joint member 1 and the inner joint member 2 move relative to each other in the axial direction, slip occurs between the outer spherical surface 4a of the cage 4 and the inner peripheral surface 1a of the outer joint member 1, and smooth axial movement is achieved. enable.

In the vicinity of the opening inside the outer joint member 1, a circlip 105 is provided to prevent the ball 3, the cage 4, and the inner joint member 2 moving in the axial direction in the outer joint member 1. ing. The circlip 105 is mounted in a circumferential groove 106 formed on the inner peripheral surface of the outer joint member 1. When the circlip 105 interferes with the ball 3 rolling along the track groove 11, The ball 3, the cage 4, and the inner joint member 2 are prevented from coming off while preventing the opening from falling off.
JP 2006-266330 A

  When manufacturing the conventional outer joint member 1, after forming the track groove 11 and the like in the forging process, the circumferential groove 106 for mounting the circlip 105 is formed by turning. Since this turning process inserts a cutting tool into the inner side through the opening of the outer joint member 1 to cut the inner peripheral surface, a special tool is required, and the process takes time and effort. Therefore, inconvenience that the labor and cost of manufacturing the sliding type constant velocity universal joint increases.

  Accordingly, an object of the present invention is to provide a sliding type constant velocity universal joint that can prevent the inner joint member and the torque transmission member from coming off with a simple configuration and can be manufactured at low cost with little effort.

  In order to solve the above-described problem, a sliding type constant velocity universal joint according to the first aspect of the present invention includes an outer joint member having an opening and a raceway surface extending in the axial direction on the inner peripheral surface, and the outer joint member. An inner joint member disposed on the inner side, and a torque transmission member that is interposed between the outer joint member and the inner joint member so as to be able to roll along the raceway surface of the outer joint member and transmit torque. In the sliding type constant velocity universal joint, it is fitted in the vicinity of the inner opening of the outer joint member so as to be able to interfere with at least one of the torque transmission member and the inner joint member, and the outer peripheral surface and the inner side of the outer joint member. An annular retaining member for retaining the torque transmission member and the inner joint member by frictional resistance generated between the circumferential surface and the peripheral surface is provided.

  According to the above configuration, the retaining member fitted in the vicinity of the opening on the inner side of the outer joint member has a torque transmission member and an inner joint due to frictional resistance generated between the outer peripheral surface and the inner peripheral surface of the outer joint member. Prevents the members from coming off. Therefore, unlike the prior art, it is not necessary to form the inside of the circumferential groove for accommodating the circlip on the inner peripheral surface of the outer joint member. Therefore, the outer joint member can be easily manufactured with a small number of processing steps, and as a result, labor and cost for manufacturing the sliding type constant velocity universal joint can be reduced.

  The sliding type constant velocity universal joint according to claim 2 is the sliding type constant velocity universal joint according to claim 1, wherein the retaining member is press-fitted inside the outer joint member. is there.

  According to the above embodiment, the retaining member that prevents the torque transmitting member and the inner joint member from being removed by the frictional resistance between the outer peripheral surface and the inner peripheral surface of the outer joint member can be obtained with a simple structure.

  A sliding constant velocity universal joint according to a third aspect of the present invention is the sliding constant velocity universal joint according to the second aspect, wherein the retaining member has a cylindrical shape.

  According to the above embodiment, a sufficient contact area can be obtained between the outer peripheral surface of the tubular retaining member and the inner peripheral surface of the outer joint member, so that frictional resistance for retaining can be efficiently obtained. it can.

  The sliding type constant velocity universal joint according to claim 4 is the sliding type constant velocity universal joint according to claim 1, wherein the retaining member is along at least a part of the inner peripheral surface of the outer joint member. A diameter-enlarged portion having a shape, and a deformed portion that is continuous with the expanded-diameter portion and is located radially inside, and the expanded diameter as the deformable portion undergoes plastic deformation toward the radially outer side. The part is configured to expand in diameter so as to be in close contact with the inner peripheral surface of the outer joint member, and the retaining member is fitted inside the outer joint member.

  According to the above embodiment, after the retaining member is disposed on the inner joint member of the outer joint member, the deformed portion is plastically deformed toward the radially outer side, so that the diameter-expanded portion is expanded and the outer joint member is expanded. It is in close contact with the inner peripheral surface of the, and is in a fitted state. Thus, the retaining member can be fitted to the outer joint member with a small number of steps.

  The sliding type constant velocity universal joint according to claim 5 is the sliding type constant velocity universal joint according to claim 4, wherein the retaining member is formed by a plurality of arcs in which the diameter-expanded portion is formed. The deformed portion is disposed between the arcs.

  According to the above-described embodiment, the plurality of deformed portions are plastically deformed radially outward, thereby effectively expanding the diameter-expanded portion between the deformed portions and obtaining a sufficient frictional resistance. Thus, the retaining member can be fitted inside the outer joint member.

  The sliding constant velocity universal joint according to claim 6 is the sliding constant velocity universal joint according to claim 1, wherein the outer joint member is formed with three track grooves in the axial direction on the inner peripheral surface. Each track groove has an axial roller guide surface on each side, the inner joint member is a tripod member having three leg shafts projecting in the radial direction, and the torque transmission member is the tripod A roller inserted into the track groove in a state of being rotatably mounted on each leg shaft of the member, and the roller is formed to be movable in the axial direction of the outer joint member along the roller guide surface. .

  According to the above-described embodiment, the tripod constant velocity universal joint that can be manufactured at low cost with little effort can be obtained by preventing the roller and tripod member from slipping out with the frictional resistance between the retaining member and the outer joint member.

  A sliding type constant velocity universal joint according to a seventh aspect of the present invention is the sliding type constant velocity universal joint according to the first aspect, wherein the outer joint member has a plurality of track grooves extending in the axial direction on the inner peripheral surface. The inner joint member has a plurality of track grooves extending in the axial direction on the outer peripheral surface, and the torque transmission member is formed by a pair of track grooves of the outer joint member and track grooves of the inner joint member. And a plurality of balls held by a cage interposed between the inner peripheral surface of the outer joint member and the outer peripheral surface of the inner joint member.

  According to the above embodiment, the ball-type constant velocity universal joint that can be manufactured at low cost with little effort by preventing the ball, the inner joint member, and the cage from being removed by the frictional resistance between the retaining member and the outer joint member. can get.

  According to the present invention, the torque transmission member and the inner joint member are retained by the frictional resistance generated between the outer peripheral surface of the retaining member and the inner peripheral surface of the outer joint member. In addition, since it is not necessary to form the circumferential groove for the circlip, the outer joint member can be easily manufactured with a small number of processing steps, and the labor and cost of manufacturing the sliding type constant velocity universal joint can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a sliding type constant velocity universal joint according to a first embodiment of the present invention, FIG. 2 (a) is a front view of a retaining member, and FIG. 2 (b) is a retaining member. FIG. FIG. 3A is a front view showing an outer joint member to which a retaining member is attached, and FIG. 3B is a longitudinal sectional view of the outer joint member. FIG. 4 is a longitudinal sectional view showing a state in which a ball, a cage and an inner joint member are assembled to the outer joint member in the manufacturing process of the outer joint member. FIG. 5 is a longitudinal sectional view showing a state in which the retaining member interferes with the ball.

  This sliding constant velocity universal joint is a double offset type constant velocity universal joint, and includes an outer joint member 1, an inner joint member 2 having a spline hole 22 coupled to a shaft 25, an outer joint member 1, and an inner joint member. The main components are a plurality of balls 3 incorporated between 2 and a cage 4 that is interposed between the outer joint member 1 and the inner joint member 2 and holds the balls 3.

  The outer joint member 1 has a cylindrical shape with one end opened, and a plurality of linear track grooves 11 parallel to the axis are formed on the cylindrical inner peripheral surface 1a at equal intervals in the circumferential direction. Further, the inner joint member 2 has a plurality of track grooves 21 parallel to the axis corresponding to the track grooves 11 of the outer joint member 1 formed on the spherical outer peripheral surface 2a. A ball 3 for transmitting torque is disposed on a ball track formed by the track groove 11 of the outer joint member 1 and the track groove 21 of the inner joint member 2 in cooperation. Each ball 3 is accommodated in a pocket 41 of a cage 4 interposed between an inner peripheral surface 1a of the outer joint member 1 and an outer peripheral surface 2a of the inner joint member 2, and is held at equal intervals in the circumferential direction. .

  The cage 4 is an annular body having an outer spherical surface 4 a that is contact-guided to the inner peripheral surface 1 a of the outer joint member 1 and an inner spherical surface 4 b that is contact-guided to the outer peripheral surface 2 a of the inner joint member 2. The spherical surface center of the outer spherical surface 4a and the spherical surface center of the inner spherical surface 4b are offset from each other in the axial direction relative to the joint center.

  When this sliding type constant velocity universal joint transmits torque while taking an operating angle, the cage 4 rotates together with the ball 3 moving on the ball track in accordance with the inclination of the inner joint member 2, and the ball 3 is operated at the operating angle. Hold the angle bisector. Thereby, the constant velocity of the joint is maintained. Further, when the outer joint member 1 and the inner joint member 2 move relative to each other in the axial direction, slip occurs between the outer spherical surface 4a of the cage 4 and the inner peripheral surface 1a of the outer joint member 1, and smooth axial movement is achieved. (Plunging) becomes possible.

  This sliding type constant velocity universal joint includes a retaining member 5 that prevents the ball 3 or the like from coming off in the vicinity of the opening of the inner peripheral surface 1 a of the outer joint member 1. The retaining member 5 has a cylindrical shape, and is formed so that the outer diameter φD1 of the retaining member 5 and the inner diameter φD2 of the outer joint member 1 satisfy the relationship φD1> φD2. That is, a fastening margin is provided between the retaining member 5 and the outer joint member 1 so as to be coupled to each other by fitting.

  As shown in FIG. 4, the assembly process of the sliding type constant velocity universal joint is as follows. First, the inner joint member 2 with the ball 3 and the cage 4 assembled to the inner joint member 2 to which the shaft 25 is coupled, The ball 3 and the cage 4 are inserted inside the outer joint member 1. Next, the retaining member 5 is inserted into the outer joint member 1 from the opening. At this time, since the outer diameter dimension φD1 of the retaining member 5 and the inner diameter dimension φD2 of the outer joint member 1 are in a relationship of φD1> φD2, the retaining member 5 is press-fitted inside the outer joint member 1, An interference fit is formed. Thereby, the retaining member 5 is fixed to the outer joint member 1.

  In this sliding type constant velocity universal joint, the outer joint member 1 and the inner joint member 2 move relative to each other in the axial direction, and the inner joint member 2 and the ball 3 are located near the opening of the outer joint member 1 as shown in FIG. When it reaches, the ball 3 interferes with the retaining member 5. Since the retaining member 5 is fitted inside the outer joint member 1, the ball 3 is prevented from falling off by frictional resistance with the inner peripheral surface of the outer joint member 1, and the inner joint member 2, the ball 3 and the cage 4 is retained.

  As described above, according to the sliding type constant velocity universal joint of the first embodiment, the retaining member 5 fitted inside the outer joint member 1 prevents the ball 3 or the like from slipping by friction resistance. Thus, it can manufacture more easily than attaching a circlip to the circumferential groove | channel of the internal peripheral surface of an outer joint member, and preventing it, and can reduce the effort and cost of manufacture.

  The retaining member 5 can be manufactured, for example, by cutting a commercially available pipe material into a predetermined length. By using a commercially available pipe material, the retaining member 5 can be manufactured at a low cost. Here, when the retaining member 5 is manufactured using a commercially available pipe material, since the pipe dimensions are determined by the standard, the outer diameter dimension φD1 of the retaining member 5 and the inner diameter dimension φD2 of the outer joint member 1 are φD1> In order to obtain φD2, it is necessary to set the inner diameter dimension φD2 of the outer joint member 1 in accordance with the pipe dimension.

  FIG. 6A is a front view of the retaining member 50 provided in the sliding constant velocity universal joint according to the second embodiment of the present invention, and FIG. 6B is a cross-sectional view of the retaining member 50. 7, 8 and 9 are views showing a process of attaching the retaining member 50 to the outer joint member 1, FIG. 7 is a longitudinal sectional view, and FIGS. 8 and 9 are front views.

  The sliding type constant velocity universal joint of the second embodiment is the same as that of the first embodiment except for the retaining member 50. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, the retaining member 50 of the sliding type constant velocity universal joint according to the second embodiment has an annular shape in which a part of the circumference is bent radially inward. That is, the retaining member 50 includes an arc-shaped enlarged diameter portion 51 that occupies the entire circumference and a single deformable portion 52 that is formed integrally with the enlarged diameter portion 51 and bent radially inward. When viewed from the outer peripheral side, the retaining member 50 has a shape in which a dent is formed in a part of a circular outer peripheral surface. The deformed portion 52 is recessed radially inward by L from the outer peripheral surface. The outer diameter dimension φD3 of the retaining member 50 and the inner diameter dimension φD2 of the outer joint member 1 have a relationship of φD3 ≦ φD2.

  As in the assembly process of the sliding type constant velocity universal joint, the inner joint member is assembled in the state where the ball 3 and the cage 4 are assembled to the inner joint member 2 to which the shaft 25 is coupled, as in FIG. 4 of the first embodiment. 2. The ball 3 and the cage 4 are inserted inside the outer joint member 1. Next, as shown in FIGS. 7 and 8, the retaining member 50 is disposed inside the outer joint member 1. Since the outer diameter dimension φD3 of the retaining member 50 and the inner diameter dimension φD2 of the outer joint member 1 have a relationship of φD3 ≦ φD2, the retaining member 50 can be easily moved outside without press-fitting as in the first embodiment. It can be arranged inside the joint member 1. Next, as shown in FIG. 8, the deformed portion 52 is plastically deformed by applying a radially outward force F to the deformable portion 52 of the retaining member 50. Thereby, the dent amount L from the enlarged diameter portion 51 of the deformed portion 52 is reduced, and accordingly, the enlarged diameter portion 51 is enlarged, and the outer diameter of the enlarged diameter portion 51 is substantially equal to the inner diameter of the outer joint member 1. It will be the same. Thereby, the outer peripheral surface of the retaining member 50 is in close contact with the inner peripheral surface 1 a of the outer joint member 1. When the force that deforms the deformed portion 52 of the retaining member 50 radially outward is removed, the contact force of the retaining member 50 to the outer joint member 1 is slightly reduced by the spring back of the enlarged diameter portion 51. However, since the deformed portion 52 is a spring element, the retaining member 50 is kept in the close contact with the outer joint member 1 and is kept in a fitted state. With this adhesion force, a frictional resistance is exerted between the retaining member 50 and the outer joint member 1 to obtain a retaining effect.

  That is, as in the first embodiment, when the inner joint member 2, the ball 3, and the cage 4 are pulled out to the opening side of the outer joint member 1 as a force in the pulling direction is applied to the shaft 25, the ball 3 and the retaining member are prevented. The member 50 interferes. At this time, due to the frictional resistance between the outer peripheral surface of the retaining member 50 and the inner peripheral surface 1a of the outer joint member 1, the rolling of the ball 3 is stopped and the drop-out from the opening is prevented. The balls 3 and the cage 4 are prevented from coming off.

  The outer diameter dimension φD3 of the enlarged diameter portion 51 of the retaining member 50 and the inner diameter dimension φD2 of the outer joint member 1 may be in a relationship of φD3> φD2. In this case, when the retaining member 50 is arranged in the outer joint member 1, it is necessary to reduce the outer diameter dimension φD3 of the enlarged diameter portion 51 to be smaller than the inner diameter dimension φD2 of the outer joint member. Since the portion 52 functions as a spring element, the diameter can be reduced with a relatively small force. Therefore, the assembling work can be performed more easily than the case of performing press-fitting as in the first embodiment.

  Further, the adhesion force between the retaining member 50 and the outer joint member 1 can be adjusted by the deformation amount of the deformed portion 52 of the retaining member 50. Therefore, even when the retaining member 50 is made of a commercially available pipe material, the inner diameter dimension φD2 of the outer joint member 1 can be set without being influenced by the dimension of the pipe material. Further, as a further advantage, the outer diameter dimension φD3 of the retaining member 50 is adjusted over a relatively wide range by appropriately setting the amount of deformation of the deformed portion 52 of the retaining member 50 and the number of the deformed portions 52. It becomes possible. Therefore, it becomes possible to manufacture the retaining members 50 of the plural types of outer joint members 1 using a single type of retaining member material, and cost can be effectively reduced by sharing the materials. .

  Further, in the second embodiment, the retaining member 50 is configured by one arc-shaped enlarged diameter portion 51 and one deformed portion 52. However, as shown in FIG. 10, a plurality (three) of circles are used. The arc-shaped enlarged diameter portions 56, 56, 56 are arranged on a single circumference, and a plurality (three) of deformed portions 57 are arranged between the plurality of enlarged diameter portions 56, 56, 56, respectively. May be.

  Further, in each of the above embodiments, the case where the present invention is applied to a ball-type double offset constant velocity universal joint using a ball as a torque transmission member is illustrated, but the present invention is not limited to a double offset type, and a tripod It can be used for other types of sliding constant velocity universal joints.

  For example, when the present invention is applied to a tripod type constant velocity universal joint, as shown in FIG. 11, if an annular retaining member 150 is fitted in the vicinity of the opening on the inner peripheral surface of the outer joint member 101 by press-fitting. Good. Further, the retaining member 150 is provided with an enlarged diameter portion and a deformed portion, and the expanded diameter portion is expanded by plastic deformation of the deformed portion, and the retaining member 150 is brought into close contact with the inner peripheral surface of the outer joint member 101. Also good. As shown in FIG. 11, the tripod type constant velocity universal joint is accommodated in the outer joint member 101 having the cup portion 111 and the stem portion 112, and the cup portion 111 of the outer joint member 101, and protrudes in the radial direction. A tripod member 102 having three leg shafts 121 is provided. A shaft 125 is fitted and coupled to a spline hole formed along the axis of the tripod member 102. A plurality of needle rollers 122 are arranged in a full roller state on the outer peripheral surface of the leg shaft 121 of the tripod member 102, and the annular roller 103 is rotatably fitted through the needle rollers 122. ing. The three rollers 103 of the tripod member 102 are respectively inserted into three track grooves 113 formed on the inner peripheral surface of the cup portion 111 of the outer joint member 101. On both sides of the track groove 113, a pair of roller guide surfaces 113 a and 113 a that are opposed in the circumferential direction of the outer joint member 1 are formed. When the tripod member 102 is pulled out to the opening side of the outer joint member 101 as a force in the pulling direction is applied to the shaft 125, the roller 103 and the retaining member 150 interfere with each other. At this time, the frictional resistance between the outer peripheral surface of the retaining member 150 and the inner peripheral surface of the outer joint member 101 prevents the roller 103 from rolling and prevents the tripod member 102 from coming off. Stop is done.

  Further, the present invention is not limited to other sliding type constant velocity universal joints of double offset type or tripod type, and can be used for cross groove type sliding type constant velocity universal joints.

It is a longitudinal cross-sectional view which shows the sliding type constant velocity universal joint of 1st Embodiment. (A) is a front view of a retaining member, and (b) is a cross-sectional view of the retaining member. (A) is a front view which shows the outer joint member with which a retaining member is mounted | worn, (b) is a longitudinal cross-sectional view of an outer joint member. It is a longitudinal cross-sectional view which shows a mode that the ball | bowl, the cage, and the inner joint member were assembled | attached to the outer joint member. It is a longitudinal cross-sectional view which shows a mode that a retaining member interferes with a ball | bowl. (A) is a front view of the retaining member with which the sliding type constant velocity universal joint of 2nd Embodiment is provided, (b) is sectional drawing of a retaining member. It is a longitudinal cross-sectional view which shows the attachment process to the outer joint member of a retaining member. It is a front view which shows the attachment process to the outer joint member of a retaining member. It is a front view which shows the attachment process to the outer joint member of a retaining member. It is a front view which shows the modification of a retaining member. It is a longitudinal section showing a tripod type constant velocity universal joint to which the present invention is applied. It is a longitudinal cross-sectional view which shows the conventional sliding type constant velocity universal joint.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer joint member 2 Inner joint member 3 Ball 4 Cage 5, 50, 150 Retaining member 51, 56 Expanded-diameter portion 52, 57 Deformed portion

Claims (7)

An outer joint member having an opening and an axially extending raceway surface on the inner peripheral surface, an inner joint member disposed inside the outer joint member, and rolling along the raceway surface of the outer joint member In a sliding constant velocity universal joint that is freely interposed between the outer joint member and the inner joint member and includes a torque transmission member that transmits torque,
Friction resistance generated between the outer peripheral surface and the inner peripheral surface of the outer joint member that is fitted in the vicinity of the inner opening of the outer joint member so as to be able to interfere with at least one of the torque transmission member and the inner joint member. A sliding type constant velocity universal joint comprising an annular retaining member that prevents the torque transmitting member and the inner joint member from slipping. In the sliding type constant velocity universal joint according to claim 1,
The sliding type constant velocity universal joint, wherein the retaining member is press-fitted inside the outer joint member. In the sliding type constant velocity universal joint according to claim 2,
The slide-type constant velocity universal joint, wherein the retaining member has a cylindrical shape. In the sliding type constant velocity universal joint according to claim 1,
The retaining member has a diameter-enlarged portion having a shape along at least a part of the inner peripheral surface of the outer joint member, and a deformed portion that is continuous with the diameter-enlarged portion and is located radially inside
As the deformed portion undergoes plastic deformation toward the radially outer side, the enlarged diameter portion expands and comes into close contact with the inner peripheral surface of the outer joint member, and the retaining member fits inside the outer joint member. A sliding type constant velocity universal joint characterized in that it is configured to do so. In the sliding type constant velocity universal joint according to claim 4,
The sliding-type constant velocity universal joint, wherein the retaining member is formed of a plurality of arcs and the deformed portion is disposed between the arcs. In the sliding type constant velocity universal joint according to claim 1,
The outer joint member has three track grooves in the axial direction formed on the inner peripheral surface, and has roller guide surfaces in the axial direction on both sides of each track groove,
The inner joint member is a tripod member having three leg shafts protruding in the radial direction,
The torque transmission member is a roller inserted into the track groove in a state of being rotatably attached to each leg shaft of the tripod member,
A sliding type constant velocity universal joint, wherein the roller is formed to be movable in the axial direction of the outer joint member along the roller guide surface. In the sliding type constant velocity universal joint according to claim 1,
The outer joint member has a plurality of track grooves extending in the axial direction on the inner peripheral surface,
The inner joint member has a plurality of track grooves extending in the axial direction on the outer peripheral surface,
The torque transmission member is disposed in a plurality of ball tracks formed by a track groove of the outer joint member and a track groove of the inner joint member forming a pair, and an inner peripheral surface of the outer joint member and the inner joint member A sliding type constant velocity universal joint, characterized in that it is a plurality of balls held by a cage interposed between the outer peripheral surface and the outer peripheral surface.

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