JP2015003614A - Shift operation device of transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shift operation device of a transmission that can suppress rattling of a shift lever bearing part while suppressing an increase in slide resistance.SOLUTION: A shift lever 13 is supported tiltably by receiving an outer spherical surface of a ball stud 14 provided at a base end thereof by an inner spherical surface sheet provided in a cylindrical seat socket 12, and also mounted on a vehicle by fixing the seat socket 12 in a fitting hole 11 provided in a base plate 10 fixed to a cabin. The seat socket 12 of the shift operation device of the transmission is provided with a plurality of claw parts 24 which can be elastically displaced in a radial direction of the seat socket 12 to an outer shell on a side periphery thereof, and the seat socket 12 is fixed to the fitting hole 11 with those claw parts 24.

Description

  The present invention relates to a shift operation device for a transmission.

2. Description of the Related Art Conventionally, there has been known a shift operation device for a transmission having a configuration in which a shift lever is supported by a spherical plain bearing so as to be tiltable as disclosed in Patent Document 1.
FIG. 14 shows the configuration of such a conventional shift operation device for a transmission. As shown in the figure, a spherical ball stud 51 is provided at the base end portion of the shift lever 50. The shift lever 50 is tiltably supported by receiving the outer spherical surface of the ball stud 51 by an inner spherical sheet 53 provided inside a seat socket 52 as a bearing member. The seat socket 52 is attached to an attachment hole 55 formed in a base plate 54 that is a base member of the shift operating device, which is fixed to a vehicle floor or the like.

JP2012-131305A

  In such a conventional shift operation device, in order to suppress the rattling of the seat socket 52 with respect to the base plate 54, it is necessary to firmly fix the seat socket 52 to the mounting hole 55. However, in such a case, the seat socket 52 is constantly pressed from the periphery, and the pressure is transmitted to the inner spherical sheet 53, and the sliding resistance between the inner spherical sheet 53 and the ball stud 51 is increased. Resulting in.

  The present invention has been made in view of such circumstances, and a problem to be solved is a shift operation of a transmission that can suppress the rattling of the shift lever bearing portion while suppressing an increase in sliding resistance. To provide an apparatus.

  A shift operation device for a transmission that solves the above problems includes an outer spherical surface provided at a base end portion of a shift lever, a cylindrical bearing member in which an inner spherical sheet that receives the outer spherical surface is provided, and a bearing thereof And a base member formed with a mounting hole to which the member is mounted, and a plurality of claws that are elastically displaceable in the radial direction of the bearing member with respect to the outer shell of the side periphery. The bearing member is fixed to the mounting hole by the claw portion.

  Further, another shift operation device for a transmission that solves the above-described problem is a cylindrical bearing in which an outer spherical surface provided at a base end portion of a shift lever and an inner spherical sheet that receives the outer spherical surface are provided. A shift operation device for a transmission comprising a member and a base member having a mounting hole to which the bearing member is attached, and having a preload contact portion that contacts the base member in the outer circumferential direction of the bearing member The bearing member is provided with a plurality of claw portions that can be elastically displaced in the radial direction of the bearing member with respect to the outer circumferential shell of the bearing member, and the preload contact portion is in contact with the base member. The claw portion is fixed to the mounting hole in a state where the claw portion is bent toward the inner peripheral side of the bearing member.

  In these shift operation devices of the transmission, the tightening load applied to the bearing member from the mounting hole is absorbed to some extent by the deflection of the claw portion. Therefore, an increase in sliding resistance between the outer spherical surface and the inner spherical sheet when the tightening load on the bearing member is increased can be suppressed. Therefore, rattling of the shift lever bearing portion can be suppressed while suppressing an increase in sliding resistance.

  Further, in such a shift operation device for a transmission, if a claw portion is provided with a retaining contact portion that contacts the base member in the detaching direction of the bearing member from the mounting hole, the bearing member from the mounting hole can be removed. It is possible to prevent the slipping off more reliably.

  Further, if such a retaining contact portion is provided adjacent to the preload contact portion, a contact portion on the base member side corresponding to the contact portion can be provided adjacently, The configuration of the base member becomes simpler.

  When the retaining contact portion is positioned on the outer peripheral side of the bearing member with respect to the preload contact portion, the retaining member is resiliently displaced in the radial direction of the bearing member with respect to the preload contact portion. By providing the contact portion, the deformation of the claw portion when the bearing member is attached can be suppressed.

  In addition, it is possible to employ | adopt the following structures in the shift operation apparatus of a transmission. That is, a protrusion is formed on the outer spherical surface of the base end portion of the shift lever, and the bearing member is formed by a plurality of pieces. Further, of the plurality of pieces for forming the bearing member, a piece positioned corresponding to the protrusion is formed with the protrusion when the base end portion of the shift lever is inserted into the inner spherical sheet of the bearing member. A relief is formed to prevent interference.

  In addition, the plurality of claw portions of the bearing member are provided so as to be evenly positioned in the circumferential direction of the bearing member, and are detached from the base member in the detaching direction of the bearing member from the mounting hole of the base member. It is conceivable to provide a stop contact portion. In this case, when a load in the direction of detachment from the mounting hole of the base member is applied to the bearing member, the load is uniformly distributed in the circumferential direction of the bearing member. It can be received at the stop contact portion). For this reason, the said load can be equally shared by a some nail | claw part, and it can suppress that a bias | deviation arises in the share of the said load by these some nail | claw parts. And it can suppress that the nail | claw part which becomes large in the share of the load by producing a bias | inclination in the share of the said load by a some nail | claw part, and by extension, the durability of the nail | claw part falls. Furthermore, it is possible to suppress a decrease in load resistance of the bearing member itself due to a decrease in durability of the claw portion.

  Further, it is conceivable that the bearing member is formed by a plurality of first pieces arranged in the circumferential direction and one second piece positioned between adjacent first pieces. Further, at least one claw portion is formed on each of the plurality of first pieces and the one second piece. Then, the claw portions respectively formed on the plurality of first pieces are provided so as to be evenly positioned in the circumferential direction of the bearing member, and the claw portions are respectively connected to the base member in the detaching direction of the bearing member from the mounting holes. An abutment portion for retaining the abutment is provided. In this case, when a load in the direction of detachment from the mounting hole of the base member is applied to the bearing member, the load is uniformly distributed in the circumferential direction of the bearing member. Can be received by the retaining portion of the part). For this reason, the said load can be equally shared by the nail | claw part of each 1st piece, and it can suppress that a bias arises in the share of the said load by these nail | claw parts. And it can suppress that the nail | claw part from which the share of the load becomes large by producing bias in the share of the said load by the nail | claw part of each 1st piece, and by extension, the durability of the same nail | claw part falls. Furthermore, it is possible to suppress a decrease in load resistance of the bearing member itself due to a decrease in durability of the claw portion. Further, with respect to the claw portion of the second piece, the load due to the elasticity of the claw portion is applied in the radial direction of the bearing member to the outer shell on the side periphery of the bearing member so as to reduce the share of the load. Can be specialized for the application. As a result, when a load due to the elasticity of the claw portion of the second piece is applied in the radial direction of the bearing member to the outer shell on the side periphery of the bearing member, the load is effective for suppressing rattling against the base member of the bearing member. It becomes easy to adjust to a specific value.

  Further, in the shift operation device of the transmission, it is conceivable to provide a fitting portion that is tightly fitted to the mounting hole at one end of the outer circumferential shell of the bearing member in the center line direction of the mounting hole. . The base portion of the shift lever inserted into the inner spherical sheet of the bearing member by the fitting portion thus provided so that the bearing member is tightly fitted to the mounting hole at one end in the center line direction of the mounting hole. The gap between the outer spherical surface and the inner spherical sheet of the bearing member is reduced. For this reason, if the gap between the outer spherical surface of the base end portion of the shift lever and the inner spherical sheet of the bearing member is not accurately set, if the gap is set to be large to some extent, the above-mentioned fitting portion of the bearing member with respect to the mounting hole The clearance can be reduced to an appropriate value by an interference fit. Accordingly, it is easy to manage the size of the gap between the outer spherical surface of the base end portion of the shift lever and the inner spherical sheet of the bearing member, and the gap to the bearing member at the base end portion of the shift lever due to the excessively large gap. Shaking can be prevented. Further, since the fitting portion is provided at one end of the outer circumferential shell of the bearing member in the center line direction of the mounting hole, the position where the fitting portion of the bearing member is tightly fitted to the mounting hole is The base end portion of the shift lever inserted into the inner spherical sheet of the bearing member is positioned away from the center of the outer spherical surface. For this reason, the center of the outer spherical surface of the base end portion of the shift lever is not excessively tightened by the interference fitting at the fitting portion of the bearing member, and the operation of the shift lever is prevented from being caught by the tightening. it can.

  It is also conceivable to adopt the following configuration in the shift operation device of the transmission. That is, the bearing member is formed by combining a plurality of pieces arranged in the circumferential direction, and the mounting hole is formed at a portion corresponding to the boundary of the plurality of pieces on the inner peripheral surface of the mounting hole of the base member. A rib extending in the center line direction is formed. Furthermore, the contact surface between the piece and the rib is formed so that the piece is parallel to the direction away from the center of the inner spherical sheet. In this case, if a predetermined piece is removed from a plurality of pieces combined to form a bearing member, the piece tends to be displaced away from the center of the inner spherical sheet. The direction is parallel to the contact surface between the piece and the rib. For this reason, it becomes possible to smoothly move the contact surfaces of the piece and the rib relative to each other along with the displacement of the piece, and it is possible to suppress the occurrence of catching or rattling between the contact surfaces. .

  It is also conceivable to adopt the following configuration in the shift operation device of the transmission. That is, a protrusion is formed on the outer spherical surface of the base end portion of the shift lever. Further, the bearing member is provided with a relief portion that prevents interference with the protrusion when the base end portion of the shift lever is inserted into the inner spherical sheet of the bearing member, and covers the upper portion of the relief portion. Form. In this case, since the upper part of the escape portion in the bearing member is covered with the cover, foreign matter from above can be prevented from entering the escape portion by the cover.

The perspective exploded view which shows the perspective exploded structure about 1st Embodiment of the shift operation apparatus of a transmission. 4 is a schematic diagram schematically showing a configuration of a shift gate provided in the shift operation device of the embodiment. The perspective view which shows the perspective structure of the seat socket which is a bearing member of the shift operation apparatus of the embodiment. The top view which shows the planar structure of the seat socket of the shift operation apparatus of the embodiment. The schematic diagram which shows the attachment state with respect to the seat socket of the ball stud of the shift operation apparatus of the embodiment. Sectional drawing which shows the side part cross-section of the nail | claw part provided in the 1st piece which forms the seat socket of the shift operation apparatus of the embodiment. Sectional drawing which shows the side part cross-section of the nail | claw part provided in the 2nd piece which forms the seat socket of the shift operation apparatus of the embodiment. Sectional drawing which shows the side socket sectional structure of the seat socket attached to the attachment hole of the shift operation apparatus of the embodiment, and its periphery. The graph which shows the relationship between the operation amount at the time of operating force acting on a shift lever and obtaining a predetermined operation amount, and operation force. Sectional drawing which shows the side part sectional structure of the nail | claw part and its periphery in the seat socket attachment process of the shift operation apparatus of the embodiment. Sectional drawing which shows the nail | claw part of the shift operation apparatus of the transmission concerning 2nd Embodiment, and the side part sectional structure of the periphery. Sectional drawing which shows the side part sectional structure of the nail | claw part and its periphery in the seat socket attachment process of the shift operation apparatus of the embodiment. The top view which shows the planar structure of the seat socket of the shift operation apparatus of the transmission concerning 3rd Embodiment. Sectional drawing which shows typically the side part cross-section of the shift operation apparatus of the conventional transmission.

(First embodiment)
Hereinafter, a first embodiment of a shift operation device for a transmission will be described in detail with reference to FIGS.

  As shown in FIG. 1, the shift operation device of the present embodiment includes a base plate 10 as a base member that is fixed to a passenger compartment and serves as a base (base) of the shift operation device. The base plate 10 is fixed to the floor or the like of the passenger compartment with bolts or the like. A substantially cylindrical mounting hole 11 is formed in the base plate 10. A seat socket 12 having a substantially cylindrical shape is attached to the attachment hole 11.

  A spherical ball stud 14 provided at the base end portion of the shift lever 13 is engaged with the seat socket 12. The shift lever 13 is supported so as to be tiltable with respect to the base plate 10 by a spherical plain bearing having the ball stud 14 as a spherical axis and the seat socket 12 as a bearing member. The ball stud 14 is provided with a projection 15 so as to protrude rearward of the driver. The protrusion 15 is for restricting torsional rotation of the ball stud 14 in the direction around the axis of the shift lever 13.

  A control lever 16 is integrally provided on the shift lever 13 so as to be tiltable. A shift cable 17 is connected to the control lever 16. The shift lever 13 is connected to the automatic transmission through the shift cable 17.

  FIG. 2 shows an example of the shift gate 18 that guides the tilting of the shift lever 13. In the shift gate 18 shown in the figure, three operation paths, a shift operation path 19, a manual operation path 20, and a select operation path 21, are formed as operation paths for guiding the shift lever 13. The shift operation path 19 is extended in the front-rear direction of the driver (hereinafter referred to as a shift direction) while being bent in a staircase shape. Further, the manual operation path 20 is linearly extended in the shift direction on the right side of the shift operation path 19 in the figure. The shift operation path 19 and the manual operation path 20 are connected through a select operation path 21 that extends in the left-right direction of the driver (hereinafter referred to as a select direction).

  In the shift operation path 19, as the operation position of the shift lever 13, the parking operation position (P), the reverse operation position (R), the neutral operation position (N), and the drive operation position (D) are sequentially arranged from the front side of the driver. ) Four operation positions are set. Further, in the manual operation path 20, three operation positions of an upshift operation position (+), a manual operation position (M), and a downshift operation position (−) are set in order from the front side of the driver. The select operation path 21 is formed so as to connect the drive operation position (D) of the shift operation path 19 and the manual operation position (M) of the manual operation path 20.

  In the shift operation device of the present embodiment configured as described above, when the shift lever 13 is operated along the shift operation path 19, the operation is transmitted to the automatic transmission through the shift cable 17. Then, the shift operation of the automatic transmission is performed according to the operation position of the shift lever 13 positioned by the operation.

  On the other hand, when the shift lever 13 is operated along the select operation path 21 from the drive operation position (D) to the manual operation position (M), the driver can perform the shift operation of the automatic transmission more freely. Transition to mode. In the manual operation mode, when the shift lever 13 is operated from the manual operation position (M) to the upshift operation position (+) along the manual operation path 20, as long as it is permitted in view of the traveling state of the vehicle at that time. , The shift stage of the automatic transmission is increased by one stage. Further, when the shift lever 13 is operated from the manual operation position (M) to the downshift operation position (−), the shift stage of the automatic transmission is one step as long as it is allowed in view of the traveling state of the vehicle at that time. Can only be lowered.

  In such a manual operation mode, the shift lever 13 is operated to the upshift operation position (+) and the downshift operation position (−). When these operations are performed, a predetermined portion of the shift lever 13 pushes a select switch (not shown). Is detected. A force for automatically moving the lever 13 back to the manual operation position (M) is applied to the shift lever 13 operated to the upshift operation position (+) and the downshift operation position (−). It has come to be.

  Next, details of the seat socket 12 constituting the bearing member of the shift lever 13 will be described. In the following, the end of the seat socket 12 in the protruding direction of the shift lever 13 is described as the upper end of the seat socket 12, and the end of the seat socket 12 in the opposite direction is described as the lower end of the seat socket 12.

  FIG. 3 shows a perspective structure of the seat socket 12. As shown in the figure, an inner spherical sheet 22 that receives the outer spherical surface of the ball stud 14 of the shift lever 13 shown in FIG. 1 is formed in the seat socket 12. A circular opening 23 is formed in the upper part of the inner spherical sheet 22 in the figure, and the shift lever 13 protrudes from the opening 23. The shift lever 13 is supported so as to be tiltable around the center of the inner spherical sheet 22 through sliding contact between the inner spherical sheet 22 and the outer spherical surface of the ball stud 14.

  The seat socket 12 includes a plurality of (three in this example) first pieces 12a, 12b, and 12c arranged in the circumferential direction, and a first piece that is smaller than and adjacent to the first pieces 12a, 12b, and 12c. It is formed by one second piece 12d located between 12a and 12b. Each of the plurality of first pieces 12a, 12b, 12c and one second piece 12d has a claw portion 24 that can be elastically displaced in the radial direction of the seat socket 12 with respect to the outer shell on the side periphery of the seat socket 12. At least one is formed.

  As shown in FIG. 4, in this shift operation device, the four claw portions 24 respectively formed on the plurality of first pieces 12 a, 12 b, 12 c are provided so as to be evenly positioned in the circumferential direction of the seat socket 12. ing. The four claw portions 24 are provided at a position 45 degrees diagonally forward and left and 45 degrees diagonally rearward and left and right, respectively. On the other hand, one claw portion 24 is provided on the second piece 12d so as to be positioned in front of the driver. Of the first pieces 12a, 12b, 12c and the second piece 12d for forming the seat socket 12, corresponding to the protrusion 15 of the ball stud 14 (FIG. 1) inserted into the inner spherical sheet 22 of the seat socket 12. An escape portion 31 is formed in the positioned piece (first piece 12c). The escape portion 31 is for preventing interference between the protrusion 15 and the first piece 12 c when the ball stud 14 is inserted into the inner spherical sheet 22.

  FIG. 5 schematically shows a state in which the ball stud 14 of the shift lever 13 is supported in the inner spherical sheet 22 of the seat socket 12. Under this state, the protrusion 15 of the ball stud 14 is inserted into the relief portion 31 of the first piece 12c, and the outer periphery of the seat socket 12 is contacted with the protrusion 15 and the base plate 10 (FIG. 1). Torsional rotation of the ball stud 14 is restricted. As shown in the figure, a cover 32 is formed on the first piece 12c to cover the upper portion of the escape portion 31. The cover 32 connects both ends in the outer peripheral direction of the seat socket 12 in the escape portion 31 (FIG. 4) of the first piece 12c. By forming the cover 32 in this way, the strength around the escape portion 31 in the first piece 12c is increased.

  FIG. 6 shows a side sectional structure of the claw portion 24 of the first piece 12a, 12b, 12c. This figure corresponds to the cross section of the seat socket 12 (first piece 12c) along the line AA in FIG.

  As shown in the figure, the claw portion 24 is integrally formed with the seat socket 12 as a cantilever beam having the lower end side of the seat socket 12 as a fixed end and the upper end side of the seat socket 12 as a free end. At the tip of the claw portion 24, a preload contact portion 25 facing the outer peripheral side of the seat socket 12 and a retaining contact portion 26 facing the upper end side of the seat socket 12 from the mounting hole 11 are provided. ing. The preload contact portion 25 and the retaining contact portion 26 are provided adjacent to each other. Further, the retaining contact portion 26 is located on the outer peripheral side of the seat socket 12 with respect to the preload contact portion 25.

  FIG. 7 shows a side sectional structure of the claw portion 24 of the second piece 12d. The claw portion 24 has substantially the same shape as the claw portion 24 of the first pieces 12a, 12b, and 12c shown in FIG. However, in the claw portion 24 (FIG. 7) of the second piece 12d, the part B corresponding to the retaining contact portion 26 in the claw portion 24 (FIG. 6) of the first pieces 12a, 12b, 12c is the same. It is not necessarily used for the same application as the contact portion 26 for use (prevention of later-described removal prevention).

  FIG. 8 shows a cross-sectional structure of the seat socket 12 and its periphery when attached to the attachment hole 11. A fitting portion 33 that is tightly fitted to the peripheral edge of the lower end opening of the mounting hole 11 is provided at one end (the lower end in this example) of the mounting hole 11 in the outer peripheral shell on the side periphery of the seat socket 12. It has been. Further, a fixing portion 27 is formed at a position corresponding to the claw portion 24 in the upper end opening periphery of the mounting hole 11 so as to protrude toward the inner peripheral side. And the inner peripheral side and the lower end side of the front end portion of the fixing portion 27 are the preload contact portions of the claw portion 24 in the first pieces 12a, 12b, 12c (only 12a, 12b are shown) when the seat socket 12 is attached, respectively. 25, a preload contact portion 28 on the side of the base plate 10 and a contact portion 29 for retaining, which are in contact with the retaining portion 26 for retaining, respectively. Note that the claw portion 24 (FIG. 7) of the second piece 12d has a preload contact portion 25 that contacts the preload contact portion 28 on the base plate 10 side, while a portion B is for retaining the base plate 10 side. It is formed so as not to contact the contact portion 29. The diameter of the preload contact portion 28 on the base plate 10 side is smaller than the diameter of the preload contact portion 25 of the claw portion 24 of the first piece 12a, 12b, 12c and the second piece 12d in the natural state. . Therefore, the claw portion 24 when attached to the attachment hole 11 is bent so that the difference between the diameters thereof and the tip end portion thereof are elastically displaced toward the inner peripheral side of the seat socket 12. The sheet socket 12 is fixed to the mounting hole 11 by the claw portion 24 and the fitting portion 33.

  FIG. 9 is a graph showing a relationship between an operation amount and an operation force when an operation force is applied to the shift lever 13 to obtain a predetermined operation amount with the lever 13. The broken line in the figure shows the amount of operation when the gap between the outer spherical surface of the ball stud 14 of the shift lever 13 inserted into the inner spherical sheet 22 of the seat socket 12 and the inner spherical sheet 22 is almost absent, and The relationship with the operating force is shown. In this case, the operation force for obtaining a predetermined operation amount of the shift lever 13 is increased, and the operability of the shift lever 13 may be hindered. On the other hand, the two-dot chain line in the figure shows the relationship between the operation amount and the operation force when the gap between the outer spherical surface and the inner spherical sheet 22 is relatively large. In this case, rattling accompanying the operation of the shift lever 13 occurs in the region A where the operation amount increases from “0”. Therefore, with respect to the gap between the outer spherical surface and the inner spherical sheet 22, the operation force of the shift lever 13 is suppressed to be small, and the occurrence of noise due to the rattling and the rattling caused by the operation of the shift lever 13 is suppressed. In doing so, it is preferable that the relationship between the operation amount and the operation force is set to a magnitude that is a relationship indicated by a solid line in the figure. When the fitting portion 33 of the seat socket 12 in this embodiment is tightly fitted to the mounting hole 11 of the base plate 10, the operation between the outer spherical surface and the inner spherical seat 22 is indicated by a solid line in FIG. It is set so that the relationship between the amount and the operation force can be realized.

Next, the operation of the present embodiment configured as described above will be described.
In the shift operation device of the present embodiment, the seat socket 12 is a base plate in a state where a plurality of claw portions 24 that can be elastically displaced in the radial direction of the seat socket 12 with respect to the outer shell of the side periphery are bent toward the inner periphery. 10 fixing holes 11 are fixed. In this embodiment, a tightening force that suppresses the rattling of the seat socket 12 in the radial direction is generated by the elastic repulsive force of the claw portion 24 against such bending. Since the pressing to the inner peripheral side by such a tightening force is absorbed to some extent by the bending of the claw portion 24, the transmission of the pressing to the inner spherical sheet 22 is suppressed. Therefore, even if the tightening force of the seat socket 12 is increased in order to suppress rattling, the sliding resistance between the outer spherical surface of the ball stud 14 and the inner spherical sheet 22 does not become so large. Furthermore, in the shift device of the present embodiment, the contact between the retaining contact portion 26 provided on the claw portion 24 of the first piece 12a, 12b, 12c and the retaining contact portion 29 on the base plate 10 side is achieved. The seat socket 12 is prevented from coming off from the mounting hole 11.

According to the shift operation device for a transmission of the present embodiment described above, the following effects can be obtained.
(1) In the present embodiment, the seat socket 12 has a preload contact portion 25 that contacts the base plate 10 in the outer peripheral direction of the seat socket 12, and the radial direction of the seat socket 12 with respect to the outer shell on the side periphery of the seat socket 12. A plurality of claw portions 24 that can be elastically displaced are provided. The seat socket 12 is fixed to the mounting hole 11 in a state where the claw portion 24 is bent to the inner peripheral side of the seat socket 12 by the contact with the base plate 10 in the preload contact portion 25. Therefore, even if the tightening force of the seat socket 12 for suppressing rattling is increased, the sliding resistance between the outer spherical surface of the ball stud 14 and the inner spherical sheet 22 does not become so large. Therefore, rattling of the bearing portion can be suppressed while suppressing an increase in sliding resistance.

  (2) In the present embodiment, a retaining contact portion 26 that contacts the base plate 10 in the direction in which the seat socket 12 is detached from the mounting hole 11 is provided in the claw portion 24 of the first piece 12a, 12b, 12c. Therefore, the seat socket 12 can be prevented from coming off from the mounting hole 11 more reliably.

  (3) If the retaining contact portion 26 is provided at a position away from the preload contact portion 25, the contact portion on the base plate 10 side must be separately provided. In this regard, in the present embodiment, the preload contact portion 25 and the retaining contact portion 26 are provided adjacent to the claw portion 24 of the first piece 12a, 12b, 12c. The abutting portions (28, 29) on the side of the base plate 10 can be integrally provided adjacent to each other, and the configuration on the side of the base plate 10 can be simplified.

  (4) In the present embodiment, the seat socket 12 is fixed in a state where the claw portion 24 is constantly pressed to the inner peripheral side. When such a state lasts for a long period of time, creep deformation occurs in the claw portion 24, but the creep deformation occurs on the side where the tightening force of the seat socket 12 is reduced. An increase in sliding resistance with the spherical sheet 22, that is, an increase in operating force of the shift lever 13 can be avoided.

  (5) Even if the tightening force of the seat socket 12 may be larger than the design value due to manufacturing variations, if the fixed time elapses, the tightening force is reduced due to creep deformation of the claw portion 24. The sliding resistance between the outer spherical surface of the ball stud 14 and the inner spherical sheet 22 is reduced. For this reason, even if the operating force of the shift lever 13 increases due to manufacturing variations, the state is limited to a certain period.

  (6) In the present embodiment, the claw portions 24 are provided on the outer periphery of the seat socket 12 at the front of the driver, at a position of 45 degrees diagonally forward left, and at a position of 45 degrees diagonally backward left and right. Therefore, the operation reaction force applied to the ball stud 14 during the shift operation of the shift lever 13 and the selection operation is suitably absorbed by the bending of the claw portion 24. Therefore, it is possible to suitably attenuate the impact applied to the bearing portion when the shift lever 13 is operated suddenly by the bending of the claw portion 24, and to further reduce the hitting sound due to the impact.

  (7) The claw portions 24 of the first pieces 12a, 12b, and 12c are provided so as to be evenly positioned in the circumferential direction of the seat socket 12. For this reason, when a load in the direction of detachment from the mounting hole 11 of the base plate 10 acts on the seat socket 12, the claw portions 24 (to be precise, each nail 24) are positioned with respect to the load in the circumferential direction of the seat socket 12. Can be received by the contact-preventing contact portion 26). Therefore, the load can be equally distributed and received by the claw portions 24 of the first pieces 12a, 12b, and 12c, and it is possible to prevent the load from being distributed by the claw portions 24 from being biased. And it can suppress that durability of the nail | claw part 24 which becomes large in the share of the load falls by producing bias in the share of the said load by the nail | claw part 24 of each 1st piece 12a, 12b, 12c.

  (8) About the claw part 24 formed in the 2nd piece 12d, when the load to the detachment | leave direction from the attachment hole 11 of the baseplate 10 acts with respect to the seat socket 12, it can be said that there is almost no share of the load. Small enough. For this reason, the nail | claw part 24 of 2nd piece 12d can be specialized for the application which applies the load by the elasticity of the nail | claw part 24 with respect to the outer shell of the side periphery of the seat socket 12 in the radial direction of the same sheet socket 12. it can. As a result, when a load due to the elasticity of the claw portion 24 of the second piece 12d is applied in the radial direction of the seat socket 12 to the outer shell on the side periphery of the seat socket 12, the load is applied to the base plate 10 of the seat socket 12. It becomes easy to adjust to an effective value for the rattling suppression.

  (9) At the lower end of the outer shell on the side periphery of the seat socket 12, a fitting portion 33 that is tightly fitted to the mounting hole 11 of the base plate 10 is provided. For this reason, the interference between the outer spherical surface of the ball stud 14 of the shift lever 13 inserted into the inner spherical sheet 22 of the seat socket 12 and the inner spherical sheet 22 is reduced by the interference fit of the fitting portion 33 with the mounting hole 11. The Therefore, even if the gap between the outer spherical surface of the ball stud 14 and the inner spherical sheet 22 of the seat socket 12 is not accurately set, the fitting portion of the seat socket 12 with respect to the mounting hole 11 can be obtained by setting the gap to a certain extent. By the interference fit at 33, the gap can be reduced to an appropriate value. For this reason, it becomes easy to manage the size of the gap between the outer spherical surface and the inner spherical sheet 22, and it is possible to prevent the ball stud 14 from rattling against the seat socket 12 due to the gap becoming excessively large. . Further, since the fitting portion 33 is provided at the lower end of the seat socket 12, the position to be tightly fitted by the fitting portion 33 is from the center of the outer spherical surface of the ball stud 14 inserted into the inner spherical seat 22. It is in a distant position For this reason, the center of the outer spherical surface of the ball stud 14 is not excessively tightened by the interference fitting at the fitting portion 33 in the seat socket 12, and the operation of the shift lever 13 is prevented from being caught by the tightening. it can.

  (9) The seat socket 12 is fixed to the mounting hole 11 by an interference fit of the fitting portion 33 at the lower end of the seat socket 12, while the claw portion 24 directed in the radial direction at the upper end of the seat socket 12. This is done by pressing. Accordingly, the ball socket 14 side of the shift lever 13 is accurately positioned by the seat socket 12 to suppress rattling during the operation of the shift lever 13, and the claw portion around the opening 23 of the seat socket 12 in the radial direction. The operability of the shift lever 13 can be improved by appropriately displacing it by the amount of elasticity of 24.

  (10) Since the upper part of the escape portion 31 in the seat socket 12 is covered by the cover 32, foreign matter from above can be prevented from entering the escape portion 31 by the cover 32.

  (11) Since the cover 32 connects both ends of the seat socket 12 in the outer peripheral direction of the relief portion 31 of the first piece 12c, the strength of the periphery of the relief portion 31 of the first piece 12c is increased by forming the cover 32. For this reason, when a load is applied from the ball stud 14 to the first piece 12c side of the seat socket 12 when the shift lever 13 is operated, the relief portion 31 of the first piece 12c is opened thereby, and the deformation causes damage. Invitation can be suppressed.

(Second Embodiment)
Next, a second embodiment of the shift operation device of the transmission will be described in detail with reference to FIGS. In addition, in this embodiment, about the structure which is common in the said embodiment, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  In the shift operation device according to the first embodiment, the contact-preventing contact portion 26 of the claw portion 24 in the first pieces 12 a, 12 b, 12 c is more outer periphery of the seat socket 12 than the preload contact portion 25 of the claw portion 24. Located on the side. In order to more reliably prevent the seat socket 12 from coming off, it is necessary to increase the area of the retaining portion 26 for retaining. In such a case, the distance from the preload contact portion 25 to the outermost edge of the retaining contact portion 26 becomes longer.

  As shown in FIG. 10, when the seat socket 12 is attached to the attachment hole 11, it is necessary to pass the outermost edge of the retaining contact portion 26 inside the fixing portion 27 on the base plate 10 side. Here, if the distance from the preload contact portion 25 to the outermost edge of the retaining contact portion 26 is increased, the claw portion 24 is greatly bent toward the inner peripheral side during the installation of the seat socket 12. Will have to. Therefore, when mounting, a great deformation load is applied to the base end portion of the claw portion 24 indicated by a dotted circle in the drawing, and there is a possibility that creep deformation occurs. Therefore, in the present embodiment, the claw portion 24 is configured as follows to reduce the deformation load at the time of attachment.

  FIG. 11 shows a cross-sectional structure in the vicinity of the claw portion 24 of the first piece 12a, 12b, 12c in the shift operation device of the present embodiment. As shown in the figure, in the shift operation device of the present embodiment, the preload contact portion 25 and the retaining contact portion 26 are separated at the tip portion of the claw portion 24. As a result, the preload contact portion 25 is disposed so as to be elastically displaceable in the radial direction of the seat socket 12.

  The operation of this embodiment will be described with reference to FIG. As shown in the figure, in the present embodiment, when the outermost edge of the retaining contact portion 26 passes through the fixing portion 27 during the attachment of the seat socket 12 to the mounting hole 11, the preload contact portion 25. On the other hand, the retaining contact portion 26 is bent toward the inner peripheral side. Therefore, the amount of displacement of the tip of the claw portion 24 at this time is reduced by the amount of the deflection, and the deformation of the base end portion of the claw portion 24 indicated by a dotted circle in the figure is reduced. .

According to the shift operation device for a transmission of this embodiment, in addition to the effects described in (1) to (11) above, the following effects can be further achieved.
(12) In the present embodiment, the diameter of the seat socket 12 is set so that the retaining contact portion 26 of the claw portion 24 of the first piece 12 a, 12 b, 12 c is in relation to the preload contact portion 25 of the claw portion 24. It is provided so as to be elastically displaceable in the direction. Therefore, deformation of the claw portion 24 when the seat socket 12 is attached to the attachment hole 11 can be suitably suppressed.

(Third embodiment)
Next, a third embodiment of the shift operation device of the transmission will be described in detail with reference to FIG. In addition, in this embodiment, about the structure which is common in the said 1st Embodiment, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  FIG. 13 shows a planar structure of the seat socket 12 in the shift operation device of the present embodiment. The first pieces 12a, 12b, 12c and the second piece 12d in the seat socket 12 can be divided with respect to each other. The seat socket 12 is formed by combining and combining the first pieces 12a, 12b, 12c and the second piece 12d.

  On the inner peripheral surface of the mounting hole 11 of the base plate 10 to which the seat socket 12 is mounted, a portion corresponding to the boundary between the first piece 12a and the second piece 12d, and the boundary between the second piece 12d and the first piece 12b Ribs 34 and 35 extending in the direction of the center line of the mounting hole 11 (in the direction perpendicular to the paper surface of FIG. 13) are formed in the portions corresponding to. Further, on the inner peripheral surface of the mounting hole 11, the portion corresponding to the boundary between the first piece 12b and the first piece 12c, and the portion corresponding to the boundary between the first piece 12a and the first piece 12c, respectively, Ribs 36 and 37 extending in the center line direction of the mounting hole 11 are formed. When any one of the first pieces 12a, 12b and the second piece 12d is detached from the other pieces, the ribs 34 to 37 are positioned relative to the other pieces of the removed pieces in the circumferential direction of the seat socket 12. Is for holding.

  The contact surfaces 38 and 39 between the first piece 12 a and the rib 34 and the contact surfaces 40 and 41 between the first piece 12 a and the rib 37 are directions in which the first piece 12 a is separated from the center of the inner spherical sheet 22. It is formed in parallel with (arrow Y1 direction in FIG. 13). Further, the contact surfaces 42 and 43 of the second piece 12d and the rib 34 and the contact surfaces 44 and 45 of the second piece 12d and the rib 35 are separated from the center of the inner spherical sheet 22 by the second piece 12d. It is formed in parallel to the direction (arrow Y2 direction in FIG. 13). Further, the contact surfaces 46 and 47 between the first piece 12 b and the rib 35 and the contact surfaces 48 and 49 between the first piece 12 b and the rib 36 are separated from the center of the inner spherical sheet 22. It is formed in parallel to the direction (arrow Y3 direction in FIG. 13).

  Here, when any one of the first pieces 12a, 12b and the second piece 12d combined to form the seat socket 12 is detached from each other piece, the removed piece is separated from the center of the inner spherical sheet 22. Try to move in the direction you want.

  For example, when the first piece 12a is disengaged from other pieces, if the first piece 12a is displaced in a direction away from the center of the inner spherical sheet 22 (arrow Y1 direction), the direction of the displacement is the same as the first piece 12a. The direction is parallel to the contact surfaces 38, 39 with the rib 34 and the contact surfaces 40, 41 with the first piece 12a and the rib 37. Therefore, along with the displacement of the first piece 12a, the contact surfaces 38, 39 of the first piece 12a and the rib 34 are smoothly moved relative to each other and the contact of the first piece 12a and the rib 37 is achieved. It is possible to smoothly move the surfaces 40 and 41 relative to each other, and it is possible to suppress the occurrence of catching or rattling between the contact surfaces.

  In addition, when the second piece 12d is disengaged from the other pieces, if the second piece 12d is displaced in a direction away from the center of the inner spherical sheet 22 (arrow Y2 direction), the direction of the displacement is the same as the second piece 12d. The contact surfaces 42 and 43 with the rib 34 and the contact surfaces 44 and 45 with the second piece 12d and the rib 35 are parallel to each other. For this reason, along with the displacement of the second piece 12d, the abutment surfaces 42, 43 of the second piece 12d and the rib 34 are smoothly moved relative to each other, and the abutment of the second piece 12d and the rib 35 is achieved. It is possible to smoothly move the surfaces 44 and 45 relative to each other, and it is possible to suppress the occurrence of catching or rattling between the contact surfaces.

  Furthermore, when the first piece 12b is disengaged from the other pieces, if the first piece 12b is displaced in a direction away from the center of the inner spherical sheet 22 (arrow Y3 direction), the direction of the displacement is the same as the first piece 12b. The contact surfaces 46 and 47 with the rib 35 and the contact surfaces 48 and 49 with the first piece 12b and the rib 36 are parallel. Therefore, along with the displacement of the first piece 12b, the contact surfaces 46, 47 of the first piece 12b and the rib 35 are smoothly moved relative to each other, and the contact of the first piece 12b and the rib 36 is made. It is possible to smoothly move the surfaces 48 and 49 relative to each other, and it is possible to suppress the occurrence of catching or rattling between the contact surfaces.

According to the shift operation device for a transmission of this embodiment, in addition to the effects described in (1) to (11) above, the following effects can be further achieved.
(13) A predetermined piece of the first pieces 12a, 12b and the second piece 12d is removed from the first pieces 12a, 12b, 12c and the second piece 12d constituting the seat socket 12, and the center of the inner spherical sheet 22 is removed. When moving in a direction away from the rib, the abutment surface of the piece and the rib that abuts against the piece is parallel to the displacement direction. For this reason, with the displacement of the piece, it becomes possible to smoothly move the contact surfaces of the piece and the rib relative to each other, and it is possible to suppress the occurrence of catching or rattling between the contact surfaces. it can.

(Other embodiments)
In addition, each said embodiment can also be changed and implemented as follows.
The number and position of the claw portions 24 provided on the outer periphery of the seat socket 12 may be changed as appropriate. The number and position of the claw portions 24 should be an appropriate number and position in consideration of the balance of the tightening load applied to the seat socket 12 at the time of attachment, the absorbability of the operation reaction force of the shift lever 13, the shape of the seat socket 12, and the like. good.

  In each of the above-described embodiments, the contact-preventing contact portion 26 of the claw portion 24 of the first piece 12a, 12b, 12c is provided adjacent to the preload contact portion 25. You may make it provide in a distant position. Even in such a case, if the retaining contact portion 26 is positioned on the outer peripheral side of the seat socket 12 relative to the preload contact portion 25, the retaining contact portion 26 of the claw portion 24 is By providing the preload contact portion 25 of the claw portion 24 so as to be elastically displaceable in the radial direction of the seat socket 12, deformation of the claw portion 24 when the seat socket is attached can be suitably suppressed.

  In each of the above embodiments, both the preload contact portion 25 and the retaining contact portion 26 of the claw portion 24 of the first piece 12a, 12b, 12c are provided at the tip of the claw portion 24. One or both of them may be provided in a portion other than the tip portion of the claw portion 24.

  In each of the embodiments described above, the retaining contact portion 26 of the claw portion 24 of the first piece 12a, 12b, 12c is provided on the claw portion 24 together with the preload contact portion 25. The contact portion 26 may be provided at a portion other than the claw portion 24 of the seat socket 12. Further, if the seat socket 12 can be sufficiently prevented from being detached by the tightening load due to the bending of the preload contact portion 25, the retaining contact portion 26 may be omitted.

  The configuration other than the support structure of the shift lever 13 such as the pattern of the shift gate 18 and the connection structure of the shift lever 13 and the automatic transmission may be arbitrarily changed. In any case, a plurality of claw portions 24 that can be elastically displaced in the radial direction with respect to the outer shell on the side periphery of the seat socket 12 are provided, and the claw portions 24 are used to fix the seat socket 12 to the mounting hole 11. Thus, it is possible to suppress the rattling of the shift lever bearing portion while suppressing an increase in sliding resistance.

In the above embodiments, the cover 32 is not necessarily provided.
-You may form so that the site | part B of the nail | claw part 24 of the 2nd piece 12d may function as the contact part 26 for retaining. In this case, it is preferable to make the positions of the claw portions 24 in the claw portions 24 of the second piece 12d and the claw portions 24 of the first pieces 12a, 12b, and 12c uniform in the circumferential direction of the seat socket 12.

  In the case of forming the retaining contact portion 26 on the second piece 12d, the retaining contact portion 26 is formed at a location other than the portion B of the claw portion 24, or other than the claw portion 24 on the second piece 12d. It is also possible to form it at the location.

  The second piece 12d is not necessarily smaller than the first pieces 12a, 12b, and 12c, and may be the same size as one of them or larger than them.

  -You may divide | segment the sheet | seat socket 12 by several pieces more finely than said each embodiment.

  DESCRIPTION OF SYMBOLS 10 ... Base plate (base member), 11 ... Mounting hole, 12 ... Seat socket (bearing member), 12a, 12b, 12c ... 1st piece, 12d ... 2nd piece, 13 ... Shift lever, 14 ... Ball stud (outer spherical surface) , 15 ... Projection, 16 ... Control lever, 17 ... Shift cable, 18 ... Shift gate, 19 ... Shift operation path, 20 ... Manual operation path, 21 ... Select operation path, 22 ... Inner spherical sheet, 23 ... Opening, 24 ... Claw part, 25 ... Preload contact part (claw part side), 26 ... Retaining prevention contact part (claw part side), 27 ... Fixing part, 28 ... Preload contact part (base plate side), 29 ... Retaining stop contact portion (base plate side), 31 ... relief portion, 32 ... cover, 33 ... fitting portion, 34 to 37 ... rib, 38 to 48 ... contact surface.

Claims (11)

An outer spherical surface provided at the base end portion of the shift lever, a cylindrical bearing member in which an inner spherical sheet that receives the outer spherical surface is provided, and a base member in which a mounting hole to which the bearing member is attached is formed. In a shift operation device of a transmission comprising:
The bearing member is provided with a plurality of claw portions that can be elastically displaced in a radial direction of the bearing member with respect to the outer peripheral shell, and the bearing member is fixed to the mounting hole by the claw portion. A shift operation device for a transmission. An outer spherical surface provided at the base end portion of the shift lever, a cylindrical bearing member in which an inner spherical sheet that receives the outer spherical surface is provided, and a base member in which a mounting hole to which the bearing member is attached is formed. In a shift operation device of a transmission comprising:
The bearing member has a preload contact portion that contacts the base member in the outer peripheral direction of the bearing member, and can be elastically displaced in the radial direction of the bearing member with respect to the outer shell on the side periphery of the bearing member. A plurality of nails,
The shift member characterized in that the bearing member is fixed to the mounting hole in a state where the claw portion is bent toward the inner peripheral side of the bearing member through contact with the base member in the contact portion for preload. Machine shift operation device. The shift operation device for a transmission according to claim 2, wherein the claw portion is provided with a retaining contact portion that comes into contact with the base member in a direction in which the bearing member is detached from the mounting hole. The shift operation device for a transmission according to claim 3, wherein the retaining contact portion is provided adjacent to the preload contact portion. The retaining contact portion is positioned closer to the outer periphery of the bearing member than the preload contact portion, and is provided so as to be elastically displaceable in the radial direction of the bearing member with respect to the preload contact portion. The shift operation device for a transmission according to claim 3 or 4. A protrusion is formed on the outer spherical surface of the base end portion of the shift lever,
The bearing member is formed by a plurality of pieces,
Of the plurality of pieces for forming the bearing member, the piece positioned corresponding to the protrusion is formed with the protrusion when the base end portion of the shift lever is inserted into the inner spherical sheet of the bearing member. The shift operation device for a transmission according to any one of claims 1 to 5, wherein an escape portion that prevents interference is formed. The plurality of claw portions are equally positioned in the circumferential direction of the bearing member, and include a retaining contact portion that contacts the base member in the detaching direction of the bearing member from the mounting hole. The shift operation device for a transmission according to any one of claims 1 to 6. The bearing member is formed of a plurality of first pieces arranged in the circumferential direction and one second piece located between adjacent first pieces,
At least one claw portion is formed on each of the plurality of first pieces and the one second piece,
The claw portions respectively formed on the plurality of first pieces are located evenly in the circumferential direction of the bearing member, and are prevented from coming into contact with the base member in the detaching direction of the bearing member from the mounting hole. The shift operation device for a transmission according to claim 6 or 7, further comprising a contact portion for use. 9. The fitting portion that is tightly fitted to the mounting hole is provided at one end of the outer circumferential shell of the bearing member in the center line direction of the mounting hole. A shift operation device for a transmission as described. The bearing member is formed by combining a plurality of pieces arranged in the circumferential direction,
A rib extending in the center line direction of the mounting hole is formed in a portion corresponding to the boundary of the plurality of pieces on the inner peripheral surface of the mounting hole of the base member,
The shift operation of the transmission according to any one of claims 1 to 9, wherein a contact surface between the piece and the rib is formed in parallel to a direction in which the piece is separated from the center of the inner spherical sheet. apparatus. A protrusion is formed on the outer spherical surface of the base end portion of the shift lever,
The bearing member is formed with a relief portion that prevents interference with the projection when the base end portion of the shift lever is inserted into the inner spherical sheet of the bearing member, and covers the upper portion of the relief portion. The shift operation device for a transmission according to any one of claims 1 to 10.