JP2019156160A - Gearshift device - Google Patents

Abstract

To attach the upper end side of an upper boot (a boot member) to a cylindrical member with a simple structure.SOLUTION: A gearshift device includes: a shift lever 10 which is inserted into an opening 3 of a floor panel 2 from a transmission side below the floor panel 2 and protrudes to the vehicle cabin side above the floor panel 2; a cylindrical member 35 which is inserted into a portion of the shift lever 10, which is located above the floor panel 2, in a manner that the cylindrical member 35 can relatively move in an axial direction; a boot member 50 which has a through hole 54B at the upper end side and causes the cylindrical member 35 to be inserted into the through hole 54B to cover a gap between the opening 3 and the cylindrical member 35; an engagement part 36 which is provided at an outer cylinder part of the cylindrical member 35 and has at least an upper surface part; and an engaged part 54A which is provided at an inner periphery part of the through hole 54B and has a lower surface part which is placed in contact with at least the upper surface part to be supported thereby.SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to a speed change operation device, and more particularly, to an upper boot fixing structure.

  Generally, in a shift operation device, a swingable shift lever protrudes from the opening of the floor panel toward the passenger compartment, and the gap between the shift lever and the opening is covered with an upper boot (appa grommet) or the like. (For example, refer to Patent Documents 1 and 2).

Japanese Utility Model Publication No. 60-87020 JP-A-61-36818

  In the structure described in Patent Document 1, a male screw portion is provided on the outer cylindrical surface of a cylindrical member that is movably inserted into the shift lever, and a pair of upper and lower nut members are screwed to the male screw portion to The upper boot is fixed to the cylindrical member by sandwiching the side inner periphery. For this reason, there exists a subject of causing the increase in a processing man-hour, an assembly man-hour, and also the number of parts. In addition, the upper nut member is exposed in the vicinity of the upper end portion of the upper boot, which may impair the aesthetic appearance.

  The technique of this indication aims at attaching the upper end side of an upper boot (boot member) to a cylindrical member by simple composition.

  The technology of the present disclosure includes a shift lever that is inserted into the opening of the floor panel from the transmission side below the floor panel and protrudes toward the passenger compartment side above the floor panel, and the shift lever is located above the floor panel. A cylindrical member that is inserted into a part so as to be relatively movable in the axial direction, and has a through hole on the upper end side thereof, and the cylindrical member is inserted into the through hole so that a gap between the opening and the cylindrical member A boot member that covers the outer circumferential portion of the cylindrical member, a locking portion having at least an upper surface portion, an inner peripheral portion of the through hole, and at least supported by the upper surface portion. And a locked portion having a lower surface portion.

  Moreover, the said latching | locking part is formed as a 1st cyclic | annular convex part which protrudes to a radial direction outer side from the outer cylinder part of the said cylindrical member, The said to-be-latched part is radial direction from the inner peripheral part of the said through-hole. It is preferable to form as a 2nd annular convex part which protrudes inside.

  Moreover, it is preferable that the said latching | locking part is provided in the outer cylinder part of the lower end side of the said cylindrical member.

  The cylindrical member may be a part of an erroneous operation prevention mechanism that prevents an erroneous operation of the shift lever to the reverse position.

  According to the technique of the present disclosure, the upper end side of the upper boot (boot member) can be attached to the cylindrical member with a simple configuration.

It is a typical perspective view which shows the speed change operation apparatus which concerns on this embodiment from diagonally upward. It is the typical fragmentary sectional view which looked at the speed change operation device concerning this embodiment from the body width direction. FIG. 5 is a schematic perspective view showing a state in which the upper boot and the lower boot are removed in the speed change operation device according to the present embodiment.

  Hereinafter, a shift operation device according to the present embodiment will be described with reference to the accompanying drawings. The same parts are denoted by the same reference numerals, and their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 is a schematic perspective view showing the speed change operation device according to the present embodiment obliquely from above, and FIG. 2 is a schematic partial sectional view of the speed change operation device according to the present embodiment as viewed from the vehicle body width direction. FIG. 3 is a schematic perspective view showing a state in which the upper boot (upper grommet) and the lower boot (lower grommet) are removed in the speed change operation device according to the present embodiment.

  The shift operation device 1 according to the present embodiment is a shift operation device for a manual transmission, for example, and has a so-called H-type shift pattern in which the vehicle body width direction is the select direction and the vehicle body front-rear direction is the shift direction. Yes. Specifically, the shift operation device 1 includes a shift lever 10 (see FIGS. 2 and 3), a shift knob 20, a reverse erroneous operation prevention mechanism 30 (see FIG. 3), an upper boot 50 (see FIGS. 1 and 2), And lower boots 60 (see FIG. 2).

  As shown in FIG. 2, the shift lever 10 is formed in a substantially rod shape, and protrudes from the transmission side below the floor panel 2 through the opening 3 of the floor panel 2 to the vehicle compartment side. A shift knob 20 that is gripped by an operator is attached to the upper end of the shift lever 10. Further, the lower end portion of the shift lever 10 is coupled to a transmission mechanism (not shown) (for example, a shift block) provided in the control box 5 fixed to the upper portion of the mission case 4. Further, a spherical body 11 is provided at a predetermined portion between the upper end portion and the lower end portion of the shift lever 10. The spherical body 11 is rotatably supported by the control box 5, and the shift lever 10 can swing in the selection direction (vehicle body width direction) and the shift direction (vehicle body longitudinal direction) with the spherical body 11 as a fulcrum. ing.

  The reverse erroneous operation prevention mechanism 30 shown in FIG. 3 prevents a selection operation to the reverse position that is not intended by the operator. Specifically, the reverse erroneous operation prevention mechanism 30 includes a regulation protrusion member 31, a pull collar 35, a contact block 37, and a connecting member 40.

  The restriction projection member 31 includes a plate portion 33 having a through hole 32 into which the shift lever 10 is inserted, and a substantially rectangular parallelepiped projection portion 34 protruding upward from the plate portion 33. The plate portion 33 is fixed to the upper surface portion of the control box 5 with bolts B. The protrusion 34 is provided on the reverse side of the shift lever 10 in the select direction (in this embodiment, on the left side in the vehicle width direction). The upper end edge of the protrusion 34 is curved and formed in a substantially arc shape having a center point at substantially the same position as the rotation center of the spherical body 11 when viewed in the select direction.

  The pull collar 35 is an operation unit for an operator to cancel (cancel) the erroneous operation prevention function, and is formed in a substantially cylindrical shape having a diameter larger than that of the shift lever 10 and smaller than that of the shift knob 20. The pull collar 35 is inserted into a portion below the shift knob 20 of the shift lever 10 so as to be relatively movable in the axial direction, and is connected to the contact block 37 via a connecting member 40 so as to be integrally movable.

  The abutment block 37 integrally includes a cylindrical portion 38 that is inserted into the shift lever 10 so as to be relatively movable in the axial direction, and a protruding portion 39 that protrudes from the side of the cylindrical portion 38 toward the protruding portion 34. ing. The protruding portion 39 is formed in a substantially arc shape that curves so as to protrude upward with substantially the same curvature as the upper end edge of the protruding portion 34 when viewed in the select direction.

  When the operator does not pull up the pull collar 35, the contact block 37 is urged downward by a spring (not shown), and the protrusion 39 contacts the side surface of the protrusion 34. As a result, the selective movement of the shift lever 10 to the reverse position is restricted (erroneous operation preventing function: ON). On the other hand, when the pull collar 35 is pulled up by the operator, the abutment block 37 is switched to a state in which the projecting portion 39 is moved above the projecting portion 34. Accordingly, the shift movement of the shift lever 10 to the reverse position is allowed, and the erroneous operation prevention function is released (cancelled).

  In the present embodiment, the outer cylindrical portion on the lower end side of the pull collar 35 protrudes outward in the radial direction and has an annular locking convex portion 36 (a first protrusion extending in the circumferential direction over the entire circumference in the circumferential direction of the pull collar 35. An example of one annular convex portion) is provided. Details of the attachment structure between the locking projection 36 and the upper boot 50 will be described later.

[Upper boots]
As shown in FIGS. 1 and 2, the upper boot 50 includes an upper boot main body portion 51 and a retainer plate portion 57.

  The upper boot main body 51 is formed of, for example, an elastic member or the like, and has a substantially truncated pyramid shape (or a truncated cone shape) whose longitudinal cross-sectional shape is reduced in diameter from the lower end side toward the upper end side. Specifically, as shown in FIG. 2, the outer peripheral portion of the upper boot main body 51 has a large-diameter portion 52 that is bent so as to be convex outward in the radial direction, and is convex in an arc shape radially inward. A corrugated bellows portion 54 is provided in which small-diameter portions 53 that are curved in a vertical direction are alternately arranged in the vertical direction. During the speed change operation, the bellows portion 54 can be flexibly expanded and contracted so as to follow the swinging of the shift lever 10 in the select direction and the shift direction, or the pull collar 35 is moved in the vertical direction (mainly upward). It has become.

  An annular locked convex portion 54 </ b> A (an example of a second annular convex portion) that protrudes radially inward is provided on the upper end portion of the bellows portion 54. The diameter of the through hole 54B defined by the inner peripheral edge of the locked convex portion 54A is smaller than the cylinder outer diameter of the pull collar 35 and smaller than the outer diameter of the locking convex portion 36. That is, the lower surface of the locked convex portion 54A is abutted and supported by the upper surface of the locking convex portion 36, so that the upper peripheral edge of the upper boot 50 is attached to the outer periphery of the pull collar 35.

  On the lower end side of the upper boot main body 51, an annular flat portion 55 extending in the lateral direction from the lower end edge of the bellows portion 54 radially outward is integrally formed. The outer diameter of the flat portion 55 is preferably formed larger than the opening diameter of the opening 3, and an annular recess 56 having a substantially U-shaped cross section that opens outward in the radial direction is integrally formed on the outer peripheral edge thereof. Is provided.

  The retainer plate portion 57 is a flat plate-like member, and is formed in a substantially rectangular frame shape having a through hole having substantially the same diameter as the opening diameter of the opening 3. A flange portion 58 that is bent upward in a substantially L shape is provided on the inner periphery of the opening of the retainer plate portion 57. The length (height) of the flange portion 58 in the vertical direction is preferably formed substantially equal to the opening height of the annular recess 56. That is, the upper boot main body 51 and the retainer plate 57 can be preassembled by fitting the flange 58 into the annular recess 56.

  When assembling the upper boot 50, first, the flange portion 58 is fitted into the annular recess 56, and the upper boot main body portion 51 and the retainer plate portion 57 are pre-assembled. Next, the pull collar 35 is inserted into the through hole 54B, and the lower surface of the locked convex portion 54A is seated on the upper surface of the locking convex portion 36. Finally, as shown in FIG. 1, stud bolts B1 and B2 protruding from the floor panel 2 side are inserted into through holes formed in the corners of the retainer plate portion 57 and fastened with nuts. Further, the retainer plate portion 57 The upper boot 50 can be assembled very easily by inserting the bolts B3 and B4 into the through-holes and screwing them into the back nuts (not shown) on the lower surface of the floor panel 2.

  According to this embodiment described in detail above, the locked convex portion 54A formed on the upper end side of the upper boot 50 is seated on the locking convex portion 36 formed on the outer cylinder portion of the pull collar 35, and the locked convex portion The upper end side of the upper boot 50 is attached to the outer cylinder portion of the pull collar 35 only by abutting and supporting the lower surface of the portion 54A on the upper surface of the locking convex portion 36. That is, the processing of the male screw portion and the pair of upper and lower nut members as in the conventional structure are not required, and the number of processing steps, the number of parts, and the assembly step can be effectively reduced.

  Further, members other than the pull collar 35 are not exposed in the vicinity of the upper end portion of the upper boot 50, and further, a locking projection 36 is provided on the lower end side of the pull collar 35, and the outer cylinder of the pull collar 35 is extended from the upper end side of the upper boot 50. By making them visible, it becomes possible to obtain a unity feeling in these appearances, and the aesthetic appearance can be effectively improved.

[Lower boots]
Next, based on FIG. 2, the detail of the lower boot 60 which concerns on this embodiment is demonstrated. The lower boot 60 is formed of, for example, an elastic member or the like, and has a substantially annular body having a through hole at a substantially central portion when viewed from above (when viewed from the axial direction of the shift lever 10). Specifically, the lower boot 60 integrally includes an outer flat portion 61, a bellows portion 62, an inner flat portion 65, and a dust boot 69 in order from the radially outer side.

  The bellows portion 62 has a lower curved portion 63 that is curved so as to be convex downward in an arc shape and an upper curved portion 64 that is curved so as to be convex upward in an arc shape alternately in the lateral direction. It has a corrugated bellows shape. That is, when a transmission (not shown) (and the control box 5) moves relative to the vehicle body (floor panel 2) in the lateral direction, the bellows part 62 mainly expands and contracts flexibly in the lateral direction. Thus, the relative movement between the transmission and the vehicle body can be effectively absorbed.

  The outer flat portion 61 is formed in a substantially annular shape that extends laterally outward from the outer peripheral edge of the bellows portion 62 in the radial direction. By sandwiching the outer flat portion 61 between the upper surface of the floor panel 2 and the lower surface of the retainer plate portion 57, the outer peripheral side of the lower boot 60 is fixed to the periphery of the opening 3 of the floor panel 2.

  The outer flat portion 61 is integrally formed with a pair of front and rear guide protrusions 61A and 61B (also shown in FIG. 1) protruding upward. The guide protrusions 61A and 61B are formed in a substantially columnar shape, and inclined surface portions 61C and 61D are cut out at the upper edge of the entire periphery in the circumferential direction. When the above-described upper boot 50 is attached, the guide protrusions 61A and 61B are inserted into the through holes of the retainer plate portion 57, so that the retainer plate portion 57 can be easily positioned with respect to the floor panel 2. Further, after the upper boot 50 is attached, the guide protrusions 61A and 61B are locked in the through holes of the retainer plate portion 57, so that the lateral displacement of the lower boot 60 is effectively suppressed.

  The inner flat portion 65 is formed in a substantially annular shape that extends inward in the radial direction from the inner peripheral edge of the bellows portion 62. The inner flat portion 65 is sandwiched between the upper surface of the control box 5 and the lower surface of the plate portion 33 of the control projection member 31 described above and fastened with bolts, whereby the inner peripheral side of the lower boot 60 is fixed to the control box 5. Yes. That is, by fixing the inner peripheral side of the lower boot 60 to the control box 5 without attaching it to the outer peripheral portion of the shift lever 10, it is possible to effectively prevent a large reaction force from acting on the shift lever 10 from the lower boot 60. It has become.

  The dust boot 69 extends in a bellows shape from the inner flat portion 65 to the inside in the radial direction and obliquely upward, and its inner peripheral edge contacts the outer periphery of the shift lever 10. In the present embodiment, the inner peripheral edge of the dust boot 69 is preferably formed so as to contact a portion below the floor panel 2 of the shift lever 10.

  According to the present embodiment described in detail above, the outer peripheral side of the lower boot 60 is fixed to the periphery of the opening 3 of the floor panel 2, and the inner peripheral side of the lower boot 60 is fixed to the control box 5 (transmission side). It is configured. Thereby, even if the speed change operation device 1 has a double sound insulation structure including the upper boot 50 and the lower boot 60, it is possible to effectively prevent a large reaction force from acting on the shift lever 10 from the lower boot 60 during the speed change operation. It is possible to effectively prevent the drivability from being impaired.

  Further, by providing the lower boot 60 with a bellows portion 62 that is mainly extendable in the lateral direction, the relative movement in the lateral direction of the transmission (and the control box 5) with respect to the vehicle body (floor panel 2) is effectively absorbed. As a result, it is possible to prevent the lateral boot of the lower boot 60 and the falling off from the fixed portion due to the relative movement.

  In addition, guide protrusions 61A and 61B are provided on the outer flat portion 61 of the lower boot 60, and when the upper boot 50 is attached, the guide protrusions 61A and 61B are inserted into the through holes of the retainer plate portion 57, whereby the floor of the retainer plate portion 57 is obtained. It is configured so that positioning with respect to the panel 2 can be easily performed. This makes it possible to improve the workability of assembling the upper boot 50 with certainty. Further, after the upper boot 50 is attached, the guide protrusions 61A and 61B are locked in the through holes of the retainer plate portion 57, and the lateral displacement of the lower boot 60 can be effectively suppressed.

[Others]
It should be noted that the present disclosure is not limited to the above-described embodiment, and can be appropriately modified and implemented without departing from the spirit of the present disclosure.

  For example, the mounting structure on the upper end side of the upper boot 50 has been described as including the locked convex portion 54A on the upper boot 50 side and the locking convex portion 36 on the pull collar 35 side. As long as it has a structure having an upper surface portion that abuts and supports the lower surface portion, either one may be formed as a convex portion and the other as a concave portion.

  Further, the cylindrical member to which the upper end side of the upper boot 50 is attached is not limited to the pull collar 35 of the erroneous operation preventing mechanism 30 and may be another cylindrical member inserted into the shift lever 10.

  Moreover, although the inner peripheral side (inner flat part 65) of the lower boot 60 was demonstrated as what is fixed to the control box 5, you may be fixed to the other site | part on the transmission side.

  The dust boot 69 has been described as being integrally formed with the lower boot 60, but may be formed separately from the lower boot 60.

  The transmission to which the speed change operation device 1 is applied is not limited to a manual transmission, and may be another transmission such as a mechanical automatic transmission. Further, the shift pattern is not limited to the H type, and may be another shift pattern.

DESCRIPTION OF SYMBOLS 1 Shifting operation apparatus 2 Floor panel 3 Opening part 4 Mission case 5 Control box 10 Shift lever 11 Spherical body 20 Shift knob 30 Reverse misoperation prevention function 31 Control protrusion member 32 Through-hole 33 Plate part 34 Projection part 35 Pull collar 36 Locking convex part 37 Contact block 38 Cylindrical part 39 Protruding part 40 Connecting member 50 Upper boot 51 Upper boot main body part 52 Large diameter part 53 Small diameter part 54 Bellow part 54A Locking convex part 54B Through hole 55 Flat part 56 Annular concave part 57 Retainer plate part 58 Flange Part 60 lower boot 61 outer flat part 61A, B guide projection 62 bellows part 63 lower curved part 64 upper curved part 65 inner flat part 69 dust boot

Claims (4)

A shift lever that is inserted into the opening of the floor panel from the transmission side below the floor panel and protrudes toward the passenger compartment above the floor panel;
A cylindrical member that is inserted in a portion of the shift lever above the floor panel so as to be relatively movable in the axial direction;
A boot member that has a through hole on its upper end side, covers the gap between the opening and the cylindrical member by inserting the cylindrical member into the through hole;
A locking portion provided at the outer cylinder portion of the cylindrical member and having at least an upper surface portion;
A speed change operation device comprising: a locked portion provided at an inner peripheral portion of the through hole and having at least a lower surface portion abutted and supported on the upper surface portion. The locking portion is formed as a first annular convex portion protruding radially outward from the outer cylindrical portion of the cylindrical member, and the locked portion is radially inward from the inner peripheral portion of the through hole. The speed change operating device according to claim 1, wherein the speed change operating device is formed as a protruding second annular convex portion. The speed change operation device according to claim 1, wherein the locking portion is provided in an outer cylinder portion on a lower end side of the cylindrical member. The speed change operation device according to any one of claims 1 to 3, wherein the cylindrical member is a part of an erroneous operation prevention mechanism that prevents an erroneous operation of the shift lever to a reverse position.

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