JP4684024B2 - Shift lever device for automobile - Google Patents

Description

  The present invention relates to an automobile shift lever device.

As a conventional shift lever device for automobiles, a shift knob made of synthetic resin is supported on the top of a shift rod. The support means is fastened by engaging a female thread portion formed on the main body member of the shift knob with a male thread portion formed on the top of the shift rod. At the time of the fastening, the screwing amount of the shift knob is adjusted so that the front-rear direction of the shift knob matches the front-rear direction of the automobile. (For example, Patent Document 1).
JP 2004-142651 A

  However, in such a conventional technique, the means for supporting the shift knob on the shift rod is based on the screwed rotation of the male screw part and the female screw part, so that time is required for the assembling time, and the assembling man-hour is reduced. There is a risk of enormous amounts. In addition, the male screw portion and the female screw portion must be respectively provided by post-processing, which may increase the cost.

  The present invention has been made by paying attention to such a conventional technique, and provides a shift lever device for an automobile, in which a shift knob is attached to the shift rod in a short time and the cost is low.

The invention according to claim 1 is a shift lever device for an automobile in which a shift knob made of a synthetic resin is supported on the top of the shift rod, and the engaged member formed on the outer periphery of the shift rod inside the shift knob. At least two claws that can be engaged with the joint portion are formed to face each other, and a slit is formed at an intermediate position of the coupling portion that connects the claws so that the claws can be bent and deformed. The section of the connecting portion divided by the slit is made to be the same, and the shift knob penetrates the upper portion of the claw where the movable mold in which the engaging portion of the claw is formed becomes a retreatable trace. A hole is formed .

  The invention according to claim 2 is the shift lever device for an automobile according to claim 1, wherein the shift knob includes a core material made of a hard synthetic resin material on which the claws are formed, and the core material. A covering material made of a soft synthetic resin material is integrally formed.

According to the first aspect of the present invention, at least two claws that can be engaged with the engaged portion formed on the outer periphery of the shift rod are formed on the inner side of the shift knob so as to face each other. A slit is formed at an intermediate position of the connecting portion formed by connecting the claws so that the claw can be bent and deformed, and the section coefficients of the connecting portions divided by the slit are made the same. When supporting the shift knob on the rod, the claw is easily bent from the slit of the connecting part by the force to push the shift knob, so it can be supported simply by inserting the shift knob, and the shift knob installation work time is shortened, Cost can be reduced. Moreover, since the bending of only the nail is sufficient, the engaging force can be stably maintained without plastic deformation. Furthermore, when removing the shift knob from the shift rod, the claw can be easily bent from the slit of the connecting part by applying a force to pull up the shift knob, so it can be easily detached by simply pulling up the shift knob. Removal time is shortened and maintenance becomes easy. Furthermore, since the shift knob is formed with a through hole in the upper part of the claw so that the movable mold in which the claw engaging portion is formed can be moved forward and backward, the claw engaging portion is not undercut. The mold becomes inexpensive and the manufacturing cost can be reduced.

  According to a second aspect of the present invention, the shift knob includes a core material made of a hard synthetic resin material on which the claws are formed and a skin material made of a soft synthetic resin material covering the core material. Because it is formed, when the occupant grasps the shift knob, the skin material made of a soft synthetic resin material has a better tactile feel, and the core material made of a hard synthetic resin material is felt through the skin material. A shift lever device with high merchantability can be provided.

An object of the present invention is to provide an automotive shift lever device in which the shift knob device for a shift rod is mounted on the top of the shift rod and the shift knob device is mounted on the top of the shift rod. In addition, at least two claws that can be engaged with an engaged portion formed on the outer periphery of the shift rod are formed on the inner side of the shift knob so as to be opposed to each other, and the coupling portion is formed by coupling the claws. A slit is formed at an intermediate position of the claw so that the claw can be bent and deformed, and the section modulus of the connecting portion divided by the slit is made the same, and the shift knob is arranged at the upper part of the claw. was realized in the arc through holes movable mold engaging portion of the nail is formed becomes movable forward and backward trace is formed. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1-7 is a figure which shows one Example of this invention.

  Reference numeral 1 denotes a shift lever device. The shift lever device 1 is connected to a pivot portion (not shown) arranged in a shift lever case 2 attached to a transmission case of a transmission (not shown). The synthetic resin shift knob 4 is supported by the top portion 3a of the shift rod 3, and the bellows-like cover 6 that covers the shift rod 3 and is supported by a structure 5 including a console box or a vehicle body. Being done.

  At least two claws 11 that can be engaged with the engaged portion 10 formed on the outer periphery of the top portion 3a of the shift rod 3 are formed inside the shift knob 4 so as to be opposed to each other in this embodiment. A slit 13 is formed at an intermediate position of the connecting portion 12 connecting the claws 11 so that the claw 11 can be bent and deformed, and the connecting portion 12 divided by the slit 13 is formed. The section modulus is made the same.

  The slit 13 is formed to the position of this embodiment in which the depth from the lower end portion 12a of the connecting portion 12 is the same position as the engaging portion 16 of the claw 11 or deeper than the same position. Further, the slit 13 is formed in the middle of the connecting portion 12, that is, at the center position between the claws 11, 11, so that the deflection direction and the deflection amount of the claw 11 are made uniform.

  The shift knob 4 includes a hard synthetic resin material formed with the claws 11 such as a core material 14 made of POM and a soft synthetic resin material covering the core material 14 such as a skin material 15 made of TPV. Formed. A display cover 23 supported by the core material 14 with screws 22 is screwed and supported on the top of the core material 14. The display cover 23 is engraved with a shift pattern of the transmission (for example, first speed, neutral, parking, drive, reverse, etc.). An engaging claw 24 with which the upper end of the bellows-like cover 6 is engaged is formed at the lower end of the core member 14.

  The core material 14 of the shift knob 4 is formed by a forming die 26. The forming die 26 includes a fixed die 25 and a movable die 17, and the fixed die 25 with respect to the parting line P / L is 7 is moved relative to the lower side, and the movable mold 17 is moved relative to the right side in FIG. That is, the protrusion 27 of the movable mold 17 protrudes until it comes into contact with the fixed mold 25, so that the engaging portion 16 of the claw 11 is formed, and on the engaging portion 16 and the core member 14 as shown in FIG. A through hole 18 is formed as a trace of the protrusion 27 being removed in the lateral direction.

  Details of the shift rod 3 will be described. As shown in FIGS. 2 to 4, a synthetic resin fitting portion 19 is firmly disposed on the top portion 3 a of the shift rod 3. Since the engaged portion 10 at the lower end portion of the fitting portion 19 protrudes from the peripheral surface of the shift rod 3, the engaging portion 16 of the claw 11 can be engaged. Three corner members 20 are formed at the upper end of the fitting portion 19, and the shift knob 4 is rotated in the horizontal direction by being engaged with the recess 21 of the core member 14 of the shift knob 4. It is fitted to be blocked.

  Therefore, according to this embodiment, four claws 11 that can be engaged with the engaged portion 10 formed on the outer periphery of the shift rod 3 are formed on the inner side of the shift knob 4 so as to face each other. A slit 13 is formed at an intermediate position of the connecting portion 12 formed by connecting the claws 11 so that the claw 11 can be bent and deformed, and a section coefficient of the connecting portion 12 divided by the slit 13 is determined. Since they are the same, when the shift knob 3 is supported by the shift rod 3, the claw 11 is easily bent from the slit 13 of the connecting portion 12 by the force of pushing the shift knob 4. In addition, the time for installing the shift knob 4 is shortened, and the cost can be reduced.

  Further, since only the claw 11 needs to be bent, the core member 14 of the shift knob 4 is not plastically deformed, and the engagement force can be stably maintained.

  Furthermore, when removing the shift knob 4 from the shift rod 3, the claw 11 is easily bent from the slit 13 of the connecting portion 12 by applying a force to pull up the shift knob 4, so by simply pulling up the shift knob 4, It can be easily detached, and the time for removing the shift knob 4 is shortened, so that maintenance is facilitated.

  The shift knob 4 is formed by integrally forming a core material 14 made of a hard synthetic resin material on which the claw 11 is formed and a skin material 15 made of a soft synthetic resin material covering the core material 14. When an occupant (not shown) grasps the shift knob 4, the skin material 15 made of a soft synthetic resin material has a good tactile sensation, and the core material 14 made of a hard synthetic resin material is felt through the skin material 15. The shift lever device 1 with high merchantability can be provided.

  Since the shift knob 4 is formed with a through hole 18 on the upper portion of the claw 11 so that the movable mold 17 on which the engagement portion 16 of the claw 11 is formed can be moved forward and backward, the engagement portion 16 of the claw 11 is formed. Is not undercut, the mold 26 is inexpensive, and the manufacturing cost can be reduced.

  Although the said nail | claw 11 demonstrated as four Examples, if it is four, die-cutting will be performed without difficulty and it is the most preferable, but it is not limited to this, Two or three may be sufficient. In short, if the direction of deflection of the claw 11 is the direction from the center of the shaft 3 to the normal direction, the insertion force to the shift shaft 3 can be assembled without variation, and a constant pulling force can be maintained. It is within the scope of the invention to be more than one.

Explanatory drawing of the shift lever apparatus which concerns on one Example of this invention. The disassembled perspective view which shows the relationship by which a shift knob is engaged with the shift rod of FIG. Sectional drawing with the shift knob and shift rod of FIG. 1, FIG. The expansion perspective view of the top part of the shift rod of FIG. FIG. 4 is a cross-sectional perspective view of the main part of FIG. 3. Sectional drawing along the SA-SA line of FIG. Sectional drawing for description which shows the shaping | molding die of the core material of a shift knob.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shift lever apparatus 3 Shift rod 3a Top part of shift rod 4 Shift knob 10 Engagement part 11 Claw 12 Connection part 13 Slit 14 Core material 15 Skin material 16 Engagement part 17 Movable type 18 Through hole 25 Fixed type 26 Molding type

Claims (2)

In a shift lever device for an automobile in which a shift knob made of synthetic resin is supported on the top of the shift rod,
On the inner side of the shift knob, at least two claws that can be engaged with an engaged portion formed on the outer periphery of the shift rod are formed to face each other.
A slit is formed at an intermediate position of the connecting portion connecting the claws so that the claws can be bent and deformed.
So that the section modulus of the connecting portion divided by the slit is the same ,
The shift knob device according to claim 1, wherein the shift knob is formed with a through-hole in the upper portion of the claw so that a movable mold in which the engaging portion of the claw is formed becomes a reciprocating trace . The automobile shift lever device according to claim 1,
The shift knob is an automobile in which a core material made of a hard synthetic resin material on which the claws are formed and a skin material made of a soft synthetic resin material covering the core material are integrally formed. Shift lever device.

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