JP6565617B2 - Shift knob structure - Google Patents

Description

  The present invention relates to a shift knob structure attached to a shift shaft of a vehicle transmission.

  Conventionally, various shift knob structures have been proposed for mounting on the top of a shift shaft that is a shift lever. Patent document 1 forms a pair of left and right engaging grooves on the outer periphery of a shift lever, and a pin member that is a substantially Ω-shaped clip in a pair of left and right pin fitting grooves provided in the lower cylinder portion of the shift knob body. Disclosed is a shift knob mounting structure in which is mounted. In the shift knob mounting structure disclosed in Patent Document 1, when the tip of the shift lever is inserted into the insertion hole of the shift knob main body and the pin member reaches the locking groove formed in the shift lever, a pair of engagement of the pin member is performed. The stop curved portion is inserted into the pair of locking grooves of the shift lever and locked. A cover member is mounted on the lower cylinder portion of the shift knob body from below, and the inner surface of the cover member abuts against the pin member from the outside, and presses the pin member so as not to expand radially outward.

JP 2007-22536 A

  In the shift knob mounting structure disclosed in Patent Document 1, when removing the shift knob body from the shift lever during maintenance or the like, the pin member is pinched with fingers and pulled out from the pin fitting groove, and the pin member is removed from the shift knob body. An operation of completely removing the pin member is required, and the pin member may be lost. Further, when the shift knob body is attached to the shift lever again, an operation for attaching the pin member to the shift knob body is required. Since the pin member has elasticity, the operation of pulling out or attaching the pin member needs to be performed carefully so that the pin member does not jump and cannot be said to have good workability.

  Also, when a pin member is pinched with a tool and pulled out from the pin insertion groove, the direction of the force applied to the tool changes and becomes unstable because there is no structure to support the tool, and the pin member comes off from the tool. It becomes easy. Further, there is a possibility that the pin member after being pulled out may be lost, and when attaching the shift knob body to the shift lever again, an operation of attaching the pin member to the shift knob body is required. If the pin member is removed in the middle of these operations, the reaction may cause the pin member or tool to come into contact with the finger, so that a careful operation is required, which may be a factor in reducing workability.

  Further, since there is no structure for giving a feeling of moderation when attaching the pin member to the shift knob body, there is also a problem that the feeling of moderation when attaching the pin member is not sufficient and may cause a decrease in workability.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a shift knob structure in which the shift knob body can be easily attached to and detached from the shift shaft, and in particular, a shift knob structure in which the shift knob body can be easily detached from the shift shaft. is there.

  In order to solve the above problems, a shift knob structure according to an aspect of the present invention includes a shift knob body. The shift knob main body includes an insertion hole into which the shift shaft is inserted, and a support portion that supports a fixing member for fastening the shift knob main body to the shift shaft inserted into the insertion hole. The fixing member includes a first leg portion and a second leg portion, and a crossing portion that connects one end of the first leg portion and the second leg portion. The support portion supports the first leg portion so that the shift shaft can be deformed radially outward, and the first leg portion is locked in one locking groove of the shift shaft. As a result, the movement of the shift knob body in the axial direction of the shift shaft is restricted, and the first leg is deformed outward in the radial direction of the shift shaft, so that the first leg and the locking groove of the shift shaft are locked. Is released, and the shift knob body has a guide portion for guiding a tip of a tool for deforming the first leg portion radially outward of the shift shaft, and a lock between the first leg portion and a lock groove of the shift shaft. In a state in which is released, a storage portion formed to be capable of storing the tip of the tool in a gap with the first leg portion is provided. One locking groove may be provided.

  According to this aspect, by moving the tip of the tool along the guide portion, the locking between the fixing member and the shift shaft locking groove can be released, and in the released state, the shift knob that can store the tip of the tool in the receiving portion Structure can be provided. With this shift knob structure, the operator does not need to remove the fixing member from the shift knob body, and can remove the shift knob structure from the shift shaft while the fixing member is attached to the shift knob body. Moreover, since the said cancellation | release state can be maintained by accommodating the front-end | tip of a tool in an accommodating part and supporting lightly, the workability | operativity of a removal operation | work is improved.

  According to the present invention, it is possible to provide a shift knob structure in which the shift knob body can be easily attached to and detached from the shift shaft, in particular, a shift knob structure in which the shift knob body can be easily detached from the shift shaft.

It is a perspective view which shows the shift knob structure concerning the Example of this invention. It is a disassembled perspective view of a shift knob structure. It is a figure for demonstrating a shift knob main body. It is a figure for demonstrating a cover member. It is sectional drawing of the shift knob main body with which the cover member was mounted | worn. It is a fragmentary sectional view explaining the process of mounting | wearing with a fixing member. It is a side view explaining the process of mounting | wearing with a fixing member. It is the elements on larger scale which expand and show a part of FIG. It is a rear view of the shift knob structure in the middle of the process of mounting on the shift shaft. It is a rear view of the shift knob structure with which the shift shaft was mounted | worn. It is a side view of the shift knob structure with which the shift shaft was mounted | worn. It is sectional drawing of the periphery of the rotation stop part of a shift knob main body. It is the elements on larger scale which expand and show a part of FIG. It is the elements on larger scale of a shift knob main part. It is a figure explaining the process in which a tool is pushed in. It is a figure explaining the state holding the front-end | tip of a tool. It is a figure for demonstrating the shift knob structure of a comparative example.

  The present invention will be described below based on preferred embodiments with reference to the drawings. The same or equivalent components and members shown in the drawings are denoted by the same reference numerals, and repeated descriptions are appropriately omitted. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in the drawings, some of the members that are not important for describing the embodiment are omitted.

FIG. 1 shows a perspective view of a shift knob structure 1 according to an embodiment of the present invention, and FIG. 2 shows an exploded perspective view of the shift knob structure 1. The shift knob structure 1 of the present embodiment includes a shift knob body 20 that is operated by a driver, a cover member 100 that is attached to a lower portion of the shift knob body 20, and a fixing member 80. The shift knob structure 1 is mounted on the upper part of the shift shaft 10 of the vehicle transmission. Therefore, the cover member 100 has an opening through which the shift shaft 10 is inserted, and the shift knob body 20 is configured to have an insertion hole into which the shift shaft 10 is inserted.
In the following description, as shown in FIG. 1, a direction in which a button unit 26 described later is provided with respect to the central axis M of the shift shaft 10 attached to the lower side of the shift knob structure 1 is referred to as front or front in the front-rear direction. . In the state where the central axis M extends along the vertical line, the right direction in the front view is referred to as right or left in the left-right direction.

  3A shows a front view of the shift knob main body 20, FIG. 3B shows a side view of the shift knob main body 20, and FIG. 3C shows a rear view of the shift knob main body 20. FIG. The shift knob main body 20 includes a grip portion 22 that is gripped and operated by a driver, a knob cylinder portion 18 formed below the grip portion 22, and a lower end portion 24 formed below the knob cylinder portion 18. Have The grip unit 22 is provided with a button unit 26. The shift knob main body 20 includes an insertion hole into which the shift shaft 10 is inserted, and a support portion that supports a fixing member 80 for fastening the shift knob main body 20 to the shift shaft 10 inserted into the insertion hole. As shown in FIG. 2, the fixing member 80 includes a first leg portion 80a and a second leg portion 80b extending in the front-rear direction, and a connecting portion that connects the front ends of the first leg portion 80a and the second leg portion 80b. 80c.

  The first leg portion 80a and the second leg portion 80b are provided substantially in parallel. The fixing member 80 is made of an elastically deformable material, for example, a metal material. In the present embodiment, the fixing member 80 has a wire shape with a circular cross section. The first leg portion 80a, the second leg portion 80b, and the crossover portion 80c are formed as three sides excluding one side of the rectangle.

  The support portion is provided at the lower end portion 24 of the shift knob body 20, and includes a first support portion 28 into which the first leg portion 80a is inserted and a second support portion 30 into which the second leg portion 80b is inserted. The support portion supports the first leg portion 80a and the second leg portion 80b so that the shift shaft 10 can be deformed outward in the radial direction.

  The first support portion 28 and the second support portion 30 each have a groove portion that restricts the vertical movement of the inserted fixing member 80, and the first leg portion 80 a and the second leg portion 80 b of the fixing member 80 Is pushed into the groove from the direction of the arrow N and is fixed to the first support 28 and the second support 30. The first leg portion 80 a and the second leg portion 80 b are provided so as to be deformable in the left-right direction in the groove portions of the first support portion 28 and the second support portion 30.

  In the shift knob structure 1, the movement of the shift knob body 20 in the axial direction of the shift shaft 10 is restricted by the first leg 80 a being locked in one locking groove 12 of the shift shaft 10 described later. Further, by deforming the first leg portion 80a outward in the radial direction of the shift shaft 10, the engagement between the first leg portion 80a and the engagement groove 12 of the shift shaft 10 is released.

  On the outer surface of the lower end 24, there is a short protrusion 44 (see in particular FIG. 3C) that extends downward from the boundary with the knob cylinder 18 on the rear side surface, and is substantially rectangular on the front side surface. A projecting long projection 46 is provided. The short protrusion 44 and the long protrusion 46 are fitted into the gaps of the inner protrusion wall 120 of the cover member 100 described later, so that the relative rotation between the shift knob body 20 and the cover member 100 is restricted (see also FIG. 5). ).

  FIG. 4 shows a top view of the cover member 100 as viewed from above. An inner protruding wall portion 120 that protrudes inward is provided on the inner peripheral surface of the cover member 100. The inner protruding wall part 120 includes a convex part 120a, a convex part 120b, a convex part 120c, a convex part 120d, a convex part 120e, a convex part 120f, and a convex part 120g. A bent convex part 120da and a bent convex part 120ea are formed at the protruding ends of the convex part 120d and the convex part 120e, respectively.

  Here, the shift shaft 10 of the vehicle transmission will be described. As shown in FIG. 2, the shift shaft 10 has a pair of cutout grooves 14 that extend downward from the tip portion 16 of the shift shaft 10. The notch 14 is provided to receive rotation stoppers 52 and 54 (see also FIG. 12) formed in the insertion hole of the shift knob body 20. A guide portion 16b is formed at the upper end portion of the notch groove 14 so that the rotation stopper portions 52 and 54 can be easily received, thereby widening the groove width (see also FIG. 11). Further, at the distal end portion 16, a tapered portion 16a is formed in a direction toward the side surface of the shift shaft. Accordingly, when the shift shaft 10 is inserted into the shift knob body 20, the tapered portion 16a abuts on the first leg portion 80a and the second leg portion 80b, and these are easily deformed outward in the radial direction of the shift shaft 10. (See also FIG. 9). The shift shaft 10 has one locking groove 12 for locking the fixing member 80 attached to the shift knob body 20 below the lower end of the notch groove 14. The locking groove 12 extends in the front-rear direction.

  The assembly process of the shift knob structure 1 will be described. The assembly process of the shift knob structure 1 includes a process of attaching the fixing member 80 to the shift knob body 20 and a process of attaching the cover member 100 to the shift knob body 20. In particular, the first leg portion 80a and the second leg portion 80b of the fixing member 80 are inserted and attached to the first support portion 28 and the second support portion 30 of the shift knob body 20, respectively. In this state, after adjusting the relative rotational position of the cover member 100 and the shift knob body 20, the cover member 100 is attached to the lower end 24 of the shift knob body 20.

  A process of attaching the fixing member 80 to the shift knob body 20 will be described. 6 shows a partial cross-sectional view in a top view for explaining the process of mounting the fixing member 80 to the lower end 24 of the shift knob body 20, FIG. 7 shows a partial side view for explaining the process, and FIG. 8 shows an enlarged side view. The figure is shown. FIG. 6 shows a cross section cut along a horizontal plane along the line DD in FIG. The fixing member 80 is inserted into the first support portion 28 and the second support portion 30, respectively, by pushing the crossover portion 80c in the direction of arrow N with the protruding ends of the first leg portion 80a and the second leg portion 80b at the head. Is done. In the process of insertion, as shown in FIG. 8, the crossover portion 80 c comes into contact with the inclined portion 36 a of the retaining portion 36 provided in front of the lower end portion 24. When pushed further in this state, the crossover portion 80c is fitted and locked into the concave portion 36b that is recessed upward beyond the inclined portion 36a. In this way, the crossover portion 80c is locked to the concave portion 36b, so that the movement of the fixing member 80 in the front-rear direction is restricted and does not easily come off. In addition, the transitional portion 80c fits into the concave portion 36b, so that a feeling of moderation when the fixing member 80 is inserted can be improved and workability can be improved.

  A process of attaching the cover member 100 to the shift knob body 20 will be described. FIG. 5 is a cross-sectional view of the lower end 24 to which the cover member 100 is attached, cut along a horizontal plane along the line AA in FIG. As shown in FIG. 5, the cover member 100 and the shift knob body 20 are arranged such that the short protrusion 44 and the long protrusion 46 of the shift knob body 20 enter the gap between the inner protrusion wall portions 120 of the cover member 100. The relative rotational direction position is adjusted. In particular, the long protrusion 46 is positioned in the rotational direction by entering the gap between the protrusion 120a and the protrusion 120b, and is positioned in the radial direction by being supported by the protrusion 120c. Further, the short protrusion 44 is positioned in the rotation direction by entering the gap between the bending protrusion 120ea and the bending protrusion 120da, and is positioned in the radial direction by being supported by the protrusion 120e and the protrusion 120d. Since the inner projecting wall portion 120 has elasticity, it is possible to suppress the occurrence of backlash between the shift knob body 20 and the cover member 100.

  After adjusting the relative rotational position in this manner, the cover member 100 is pushed into the shift knob body 20, whereby the short protrusion 44 and the long protrusion 46 are brought into the inner protrusion wall 120 as shown in FIG. 5. By engaging, the relative rotation between the cover member 100 and the shift knob body 20 is restricted. In addition, since the locking claws 40 and 42 are locked to locking portions (not shown) formed on the inner surface of the cover member 100, the vertical movement between the cover member 100 and the shift knob body 20 is restricted. The In this way, the shift knob structure 1 that can be inserted into the shift shaft 10 is formed.

  Next, a process of mounting the shift knob structure 1 on the shift shaft 10 of the vehicle transmission will be described. 9 shows a view of the shift knob structure 1 in the process of being mounted on the shift shaft 10 as viewed from the back, and FIG. 10 shows a view of the shift knob structure 1 mounted on the shift shaft 10 as viewed from the back. 11 shows a side view thereof. FIG. 9 and FIG. 10 show the longitudinal section of the shift knob main body 20 along the line CC in FIG. 3B, and the cover member 100 and the shift shaft 10 partially broken. FIG. 11 shows a longitudinal section of the shift knob main body 20 along the line BB in FIG. 3A, and a cover member 100 and a shift shaft 10 partially broken. The shift knob body 20 is placed on the shift shaft 10 in a state in which the first leg portion 80a of the fixing member 80 supported by the shift knob body 20 and the locking groove 12 of the shift shaft 10 are aligned in the relative rotational direction. Push in.

  As shown in FIG. 9, when the fixing member 80 reaches the distal end portion 16 of the shift shaft 10, the fixing member 80 comes into contact with the tapered portion 16a, and the first leg portion 80a and the second leg portion 80b are shifted by the tapered portion 16a. Bent outward in the radial direction of the shaft. The first leg portion 80a and the second leg portion 80b that are bent outward in the radial direction of the shift shaft slide downward on the side surface of the shift shaft 10 from the tapered portion 16a. When the shift knob structure 1 is further pushed into the shift shaft 10, the rotation stopper 52 of the shift knob body 20 reaches the tip 16 of the shift shaft 10. As shown in FIG. 11, the rotation stoppers 52 and 54 are guided by the guide portion 16 b (see also FIG. 2) and inserted into the pair of cutout grooves 14. As a result, the relative rotation between the shift knob body 20 and the shift shaft 10 is restricted.

  When the shift knob structure 1 is further pushed in and the first leg portion 80a reaches the locking groove 12, the first leg portion 80a returns to the original state from the deformed state as shown in FIG. Fit into the groove 12. Thus, the movement of the shift knob body 20 in the axial direction of the shift shaft is restricted by the first leg portion 80a of the fixing member 80 being locked in the locking groove 12, that is, the shift knob body 20 and the shift shaft 10 are moved. Relative vertical movement is regulated. Thus, the shift knob structure 1 of the present embodiment can be easily mounted on the upper part of the shift shaft 10 in which one locking groove 12 is formed.

  As shown in FIG. 1, the shift knob structure 1 is mounted on the upper portion of the shift shaft 10. According to the present embodiment, the fixing member 80 is inserted and attached to the shift knob main body 20, and the cover member 100 is attached to the lower end portion 24 to form the shift knob structure 1. The shift knob structure 1 can be easily attached to the shift shaft 10 having the groove 12. In this embodiment, the structure including the shift shaft 10, the shift knob body 20, the cover member 100, and the fixing member 80 may be referred to as a “shift knob mounting structure” or a “shift lever structure”.

Hereinafter, the detailed structure of the shift knob body 20 will be described.
Please refer to FIG. 3 (a) to FIG. 3 (c). A button unit 26 is attached to the front surface of the grip portion 22. The button unit 26 is provided to release a lock mechanism for preventing an erroneous operation during forward traveling or parking.

  Locking claws 40, 42 extending downward from the lower surface of the grip portion 22 are formed on both side surfaces of the lower end portion 24. The locking claws 40 and 42 are attachment portions for attaching the cover member 100, and are formed so as to be elastically deformable in the radial direction. The locking claw 40 has a pair of leg portions 40b that are suspended from the lower surface of the grip portion 22, and a claw portion 40a that projects between the lower ends of the pair of leg portions 40b and protrudes radially outward. Composed. The locking claw 42 has a leg part 42b similar to the leg part 40b and a claw part 42a similar to the claw part 40a. The claw portion 40 a of the locking claw 40 and the claw portion 42 a of the locking claw 42 are locked by a locking portion formed on the inner surface of the cover member 100.

  As shown in FIG. 9, an insertion hole 50 into which the shift shaft 10 is inserted is formed inside the shift knob body 20. The insertion hole 50 may be a bottomed hole having the hole end portion 56 as a bottom portion, but may have an annular bottom portion that functions as an insertion stop at least at a position where the distal end portion 16 of the shift shaft 10 is inserted. .

(Rotation stop)
As shown in FIGS. 9 to 11, plate-like rotation stoppers 52 and 54 are extended in the vertical direction in the insertion hole 50. The rotation stoppers 52 and 54 are formed so as to fit into the pair of cutout grooves 14 of the shift shaft 10. Therefore, the thickness of the rotation stoppers 52 and 54 is formed to be the same as or slightly thinner than the width of the notch groove 14. Further, it is preferable that the widths of the rotation stoppers 52 and 54 are formed to be the same as or slightly longer than the distance between the pair of cutout grooves 14.

  FIG. 12 is a sectional view of the periphery of the cover member 100, the shift knob main body 20, and the rotation stoppers 52 and 54 of the shift shaft 10, and FIG. 13 is a partially enlarged view showing a part thereof. FIG. 12 shows a cross section of the shift knob main body 20 cut along a plane along the line EE in FIG. In particular, the gap between the rotation stopper 54 and the cutout groove 14 is formed larger than the gap between the rotation stopper 52 and the cutout groove 14 so that the rotation stopper 54 is loosely fitted into the cutout groove 14. By configuring in this way, the rotation stopper 54 can facilitate the fitting operation into the notch groove 14.

  As shown in FIG. 11, a taper portion 52 c whose width dimension decreases toward the lower side is provided on the side surface of the rotation stop portion 52 that contacts the notch groove 14. By fitting the rotation stopper 52 into the cutout groove 14 using the taper portion 52c as a guide, the rotation stopper 52 and the cutout groove 14 are gradually aligned in the rotation direction, and the fitting operation into the cutout groove 14 is made smooth. be able to.

  Further, the rotation stopper 52 is provided with a longitudinal groove 52a from the upper end to the lower end so that the rotation stopper 52 has elasticity in the thickness direction (see also FIG. 11). With this configuration, the rotation stopper 52 can be easily deformed in the thickness direction to reduce the fitting resistance into the notch groove 14. The outer end (bottom part) in the radial direction of the vertical groove 52 a is located radially inward from the circumscribed circle of the shift shaft 10. That is, the rotation stopper 52 is provided with a clamping region 52b that is sandwiched between both walls of the notch groove 14 and in which the vertical groove 52a is not formed. By having the clamping region 52b, play in the rotational direction of the shift knob body 20 and the shift shaft 10 can be suppressed.

  Please refer to FIG. 3 (a) to FIG. 3 (c). On both side surfaces of the lower end portion 24, the first support portion 28 and the second support portion 30 for supporting the fixing member 80 are formed radially inward of the locking claws 42. The first support portion 28 has a groove portion 28a defined by a side wall 28b, an upper wall 28c, and a lower wall 28d. The 2nd support part 30 has the groove part 30a divided by the side wall 30b, the upper wall 30c, and the lower wall 30d. The second leg portion 80b of the fixing member 80 disposed in the groove portion 30a is restricted from moving in the vertical direction by the upper wall 30c and the lower wall 30d, and is restricted from moving inward in the radial direction by the side wall 30b. The first leg portion 80a of the fixing member 80 disposed in the groove portion 28a is restricted from moving in the vertical direction by the upper wall 28c and the lower wall 28d, and restricted from moving inward in the radial direction by the side wall 28b. An end 80d of the first leg 80a opposite to the transition portion 80c can be deformed radially outward as a free end (see also FIG. 15).

(Cover member)
FIG. 5 is a cross-sectional view showing a state where the cover member 100 is attached to the lower end 24 (see also FIG. 4). The cover member 100 has an opening 130 through which the shift shaft 10 is inserted. The opening 130 is formed through the bottom of the cover. As described above, the cover member 100 includes a plurality of inner protruding wall portions 120 protruding inward in the radial direction on the inner surface of the cover. When the shift knob main body 20 and the cover member 100 are fixed, the short protrusion 44 and the long protrusion 46 of the shift knob main body 20 enter the gap between the inner protrusion wall portions 120, and the cover member 100 and the shift knob main body 20 are separated from each other. Regulate relative rotation.

(Comparative example)
Next, before describing the operation of removing the shift knob structure 1 from the shift shaft 10, the operation of removing the shift knob structure 200 from the shift shaft 210 for the shift knob structure 200 as a comparative example will be described with reference to FIG. FIG. 17 is a cross-sectional view showing a cross section cut along a horizontal plane along the upper end of the locking groove 212 of the shift knob structure 200 attached to the shift shaft 210. The shift knob structure 200 has a structure in which legs 280a and 280b of a fixing member 280 are locked to a pair of locking grooves 212 provided on both side surfaces of the shift shaft 210 to guide the tip of a tool, which will be described later. It does not have a structure for accommodating the tip. The shift knob structure 200 is covered with a cover member 300.

  First, the operator moves the cover member 300 downward from the shift knob main body 220 to expose the transition portion 280c of the fixing member 280. Subsequently, the connecting portion 280c of the fixing member 280 is pinched with a tool and pulled out from the shift knob main body 220, thereby releasing the locking state of the fixing member 280 with the locking groove 212 of the shift shaft 210. Subsequently, the shift knob structure 200 is pulled out from the shift shaft 210. Thus, in the case of the shift knob structure 200, an operation of completely removing the fixing member 280 from the shift knob main body 220 is required, and the removed fixing member 280 may be lost. Further, when removing the fixing member 280 with a tool, since there is no structure for supporting the tool, the direction of the force applied to the tool becomes unstable, the fixing member 280 is easily detached from the tool, and workability is good. I can't say that.

  Further, when attaching the shift knob main body 220 to the shift shaft 210 again, an operation of attaching the fixing member 280 to the shift knob main body 220 is required. Since the fixing member 280 has elasticity, when the fixing member 280 is attached or removed, the fixing member 280 may jump by the restoring force. If the fixing member 280 jumps and disengages during the work, the reaction may cause the fixing member 280 or the tool to come into contact with the finger, and it is required to work carefully, which may be a factor of reducing workability.

  Based on the consideration of the above comparative example, the operation of removing the shift knob structure 1 from the shift shaft 10 will be described for the shift knob structure 1 of the embodiment. Such an operation is performed, for example, when the vehicle is maintained. 14 is a cross-sectional view showing a cross section of the shift knob main body 20 cut along a horizontal plane along the line DD in FIG. 3B located at the upper end of the first support portion 28. FIG. 14 shows, for the first support portion 28 and the second support portion 30, a groove portion 28a excluding the upper wall 28c and a groove portion 30a excluding the upper wall 30c. FIG. 15 shows a process of pushing in the tip 60a of the tool 60 for deforming the first leg 80a of the fixing member 80 attached to the shift knob body 20. FIG. 16 is a diagram illustrating a state in which the tip 60a of the tool 60 is held.

  The shift knob body 20 includes a guide portion 38 that guides the tip of a tool for deforming the first leg portion 80a outward in the radial direction of the shift shaft 10, and a relationship between the first leg portion 80a and a locking groove of the shift shaft. In a state in which the stop is released, a tool storage portion 58 formed so as to be able to store the tip of the tool is provided in the gap with the first leg portion 80a.

(Guidance Department)
The guide portion 38 is provided on the rear side of the first support portion 28 in order to slide the tip 60 a of the tool 60. The guide part 38 is formed such that the tip 60a deforms the end part 80d of the first leg part 80a radially outward by sliding the tip 60a of the tool 60 obliquely forward along the guide part 38. The guide part 38 has an inclined surface part 38 a that extends obliquely from the rear side to the right side of the shift knob body 20. For example, the inclined surface portion 38a may be a planar vertical wall extending downward from the rear end of the first support portion 28 so that the tip 60a of the tool 60 slides stably. For example, the inclination angle θ of the inclined surface portion 38a may be formed in a range of 30 degrees to 60 degrees with respect to the front-rear direction. The inclined surface portion 38a is formed in a shape such that the end portion 80d of the first leg portion 80a protrudes rearward from the inclined surface portion 38a in a state where the fixing member 80 is mounted on the shift knob body 20.

(Tool receiving part)
The tool accommodating portion 58 is provided in the vicinity of the guide portion 38 so as to accommodate at least a part of the tip 60 a of the tool 60. The tool storage portion 58 receives the tip 60a of the tool 60 that has slid the guide portion 38, thereby facilitating the work of holding the tool 60 of the operator. The tool accommodating portion 58 has an accommodating recess 58 a that is recessed forward from the right end of the guide portion 38. As shown in FIG. 14, the accommodation recess 58 a is provided in a stepped portion that is provided continuously with the end of the guide portion 38. As shown in FIG. 16, the tip 60a of the tool 60 that has slid the guide portion 38 is supported by being sandwiched between the wall of the housing recess 58a and the first leg portion 80a in a state of entering the housing recess 58a.

  First, when an operator applies a load in a direction in which the cover member 100 is moved downward from the shift knob body 20, the locking claws 40 and 42 are unlocked from the inner surface of the cover member 100, and the cover member 100 is lowered. Move to. In this state, the end portion 80d of the first leg portion 80a of the fixing member 80 is exposed.

  Subsequently, as shown in FIG. 15, when the operator abuts the tip 60a of the tool 60 against the guide portion 38 and slides obliquely forward along the inclined surface portion 38a, the end portion 80d is deformed in the radial direction, The first leg 80 a is deformed in a direction away from the locking groove 12. When the tip 60a is further slid obliquely forward to enter the receiving recess 58a, the tip 60a is pressed against the inner wall of the receiving recess 58a by the restoring force of the first leg 80a as shown in FIG. It is sandwiched between the portion 80a and the side wall of the housing recess 58a. Since the tip 60a of the tool 60 can be fitted and fastened to the housing recess 58a, the state where the tip 60a enters the housing recess 58a can be maintained only by supporting the tool 60 with a weak force.

  As shown in FIG. 16, by deforming the first leg portion 80a, the first leg portion 80a is removed from the locking groove 12 in the radial direction, thereby releasing the locking state between the fixing member 80 and the locking groove 12. Is done. When these locks are released, the restriction of the vertical movement of the shift knob main body 20 and the shift shaft 10 is released, and thus the operator can pull out the shift knob main body 20 from the shift shaft 10. This pulling-out operation can be performed in a state where the fixing member 80 remains fitted to the shift knob body 20 and the first leg portion 80a is deformed as described above.

  Next, features of the shift knob structure 1 of the present embodiment configured as described above will be described. According to the shift knob structure 1 of the present embodiment, the shift knob structure 1 and the shift shaft 10 are fixed by locking the first leg portion 80a of the fixing member 80 with the one locking groove 12 formed in the shift shaft 10. Therefore, when the shift knob structure 1 is detached from the shift shaft 10 during maintenance or the like, the locked state between the locking groove 12 and the fixing member 80 can be released simply by deforming the first leg 80a in the radial direction. become. For this reason, the operation | work which removes the fixing member 80 from the shift knob main body 20 is not required, and the possibility that the removed fixing member 80 is lost can be made small.

  Further, when the shift knob main body 20 is attached to the shift shaft 10 again, the fixing member 80 remains attached, so that there is an advantage that an operation of attaching the fixing member 80 to the shift knob main body 20 is not required.

  Further, when the tool 60 is used to expand the first leg portion 80a, the first leg portion 80a is provided by sliding the tip 60a along the guide portion 38 because the guide portion 38 guides the tip 60a of the tool 60. Can be easily deformed in the direction away from the locking groove 12, the direction of the force applied to the tool 60 is stabilized, and workability is improved.

  In addition, since the housing 60 has the receiving recess 58a in which the tip 60a of the tool 60 is fitted in the state where the first leg 80a is expanded, it is possible to lightly press the other side of the tool 60 while the tip 60a is fitted in the receiving recess 58a. The state where the stop state is released can be maintained. For this reason, the shift knob main body 20 can be detached from the shift shaft 10 in this state, and the work burden can be reduced.

  In addition, the fixing member 80 has an advantage that the fixing member 80 is not easily detached because the fixing member 80 has the retaining portion 36 that locks the crossing portion 80c of the fixing member 80, and the fixing member 80 is fitted into the concave portion 36b. The feeling of moderation when inserting can be improved and workability can be improved.

  If the rotation stop portion of the shift knob main body is tightly fitted in the notch groove of the shift shaft, the rotation stop portion is compressed and deformed, and the resistance at the time of fitting becomes excessive, resulting in a decrease in workability. On the other hand, since the rotation stopper 54 of the shift knob structure 1 has a shape that fits loosely into the notch groove 14, the resistance to fitting into the notch groove 14 can be reduced. Further, since the vertical groove 52a is provided in the rotation stopper 52, the rotation stopper 52 can be easily deformed in the thickness direction and the fitting resistance into the notch groove 14 can be reduced.

  Further, since the rotation stopper 52 is provided with a clamping region 52b that is sandwiched between both walls of the notch groove 14 and in which the vertical groove 52a is not formed, the rotation stopper 52 is firmly fitted into the notch groove 14. Thus, the play in the rotational direction of the shift knob body 20 with respect to the shift shaft 10 can be reduced.

  Moreover, since the taper part 52c is provided on the side surface of the rotation stopper part 52, the taper part 52c is used as a guide to be fitted into the notch groove 14 while gradually aligning the position in the rotation direction, so that the fitting operation can be made smooth. .

  In the above, it demonstrated based on embodiment of this invention. Those skilled in the art will understand that these embodiments are examples, and that various modifications and changes are possible within the scope of the claims of the present invention, and that such modifications and changes are also within the scope of the claims of the present invention. It is where it is done. Accordingly, the description and drawings herein are to be regarded as illustrative rather than restrictive.

1 Shift knob structure, 10 Shift shaft, 12 Locking groove,
14 notch groove, 16 tip, 18 knob tube,
20 Shift knob body, 22 Grip part, 24 Lower end part,
26 button unit, 28 1st support part, 30 2nd support part,
36 retaining portion, 36a inclined portion, 36b recessed portion,
38 guide part, 38a inclined surface part, 40 locking claw,
42 locking claws, 44 short protrusions, 46 long protrusions,
50 insertion hole, 52 anti-rotation part, 54 anti-rotation part,
56 hole end portion, 58 tool accommodating portion, 58a accommodating concave portion,
60 tools, 60a tip, 80 fixing member,
80a 1st leg, 80b 2nd leg, 80c Crossing part,
80d end, 100 cover member.

Claims (1)

It has a shift knob body,
The shift knob body has an insertion hole into which the shift shaft is inserted, and a support portion that supports a fixing member for fastening the shift knob body to the shift shaft inserted into the insertion hole,
The fixing member includes a first leg portion and a second leg portion, and a crossing portion that connects one end of the first leg portion and the second leg portion,
The support portion supports the first leg portion so as to allow the shift shaft to be deformed outward in the radial direction,
The movement of the shift knob body in the axial direction of the shift shaft is restricted by the first leg portion being locked in one locking groove of the shift shaft,
By deforming the first leg to the outside in the radial direction of the shift shaft, the locking of the first leg and the locking groove of the shift shaft is released,
The shift knob body includes a guide portion for guiding a tip of a tool for deforming the first leg portion radially outward of the shift shaft, and a lock between the first leg portion and a lock groove of the shift shaft. A shift knob structure comprising: a housing portion formed to be capable of housing the tip of the tool in a gap with the first leg portion in a released state.

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