Vibration reduction device for rotary gear shift equipment

Abstract

The present invention provides a vibration reducing device for a knob-type shifting device, and includes a damper and a protrusion; the damper is arranged to be fixed to a main housing; the protrusion is formed on a component configured to rotate relative to the main housing, and is configured to reduce the return rotation speed of the shift knob by contacting the damper when the shift knob returns from the Nd gear position or the D gear position to the neutral gear position or from the Nr gear position or the R gear position to the neutral gear position, thereby reducing vibration.

Description

Technical Field

[0001] The invention relates to a vibration reducing device for a knob type gear shifting device. Background Art

[0002] Generally, a vehicle equipped with an automatic transmission controls hydraulic pressure within a shift range set according to the driving speed of the vehicle so that the shift gears of the target shift range can be automatically operated.

[0003] The automatic transmission generates a gear ratio by using a hydraulic circuit, planetary gears, and friction elements to perform gear shifting, and the control of these components is handled by a transmission control unit (TCU).

[0004] The shift-by-wire (hereinafter referred to as SBW) system is an electronic transmission system for a vehicle. Unlike a conventional mechanical transmission system, this is an electronic transmission system in which there is no mechanical connection structure such as a cable between the transmission and the shifting device (lever, button, knob). In this system, if a signal generated in the operation of the electronic shifting device (lever, button or knob) is transmitted to a transmission control unit (TCU), the transmission actuator (shift cable motor, select cable motor) is operated by an electronic signal indicated by the TCU, and hydraulic pressure is applied or blocked to the hydraulic circuit at each shift gear position through the operation of the transmission brake, thereby electrically performing shift control.

[0005] Therefore, the SBW-based automatic transmission can transmit the driver's shifting intention as an electrical signal to the TCU through simple operation of the electronic shifting device (joystick, button or knob), making it easier to shift to D (forward) gear, R (reverse) gear, neutral gear (Nd gear, Nr gear), etc., and it can also miniaturize the shifting device, thereby ensuring a spacious space between the driver's seat and the passenger seat.

[0006] Methods of shifting gears in an electronic transmission system are roughly divided into an operating lever type using an operating lever, a push button type using a button, and a knob type using a knob.

[0007] The knob-type shift device has the following structure: a shift signal is generated when a shift knob corresponding to a rotating component rotates relative to a housing corresponding to a fixed component, and the shift knob located in a neutral position is rotated to an Nd gear position or a D gear position (clockwise rotation), or is rotated to an Nr gear position or an R gear position (counterclockwise rotation) during the driver's rotation operation, and at this time, a spring accumulates elastic force, and if the driver releases the operating force from the rotating shift knob, the shift knob located in the Nd gear position or the D gear position, or the Nr gear position or the R gear position is rotated by the restoring force of the spring to return to the neutral position (return position).

[0008] As described above, there is a disadvantage that when the shift knob is rotated to return to the neutral position (return position) from the Nd gear or D gear position, or the Nr gear or R gear position, a vibration phenomenon (i.e., a trembling phenomenon) is generated due to the strong rotation caused by the restoring force of the spring, thereby generating a trembling noise.

[0009] The above contents explained as the background are only intended to help understanding the background of the present invention, and are not intended to indicate that the present invention falls within the scope of the relevant technologies known to those skilled in the art. Summary of the invention

[0010] The present invention relates to a shudder reduction device for a knob-type shifting device. A specific embodiment relates to a shudder reduction device for a knob-type shifting device, which is configured to reduce shuddering when a shift knob is rotated to return to a neutral position.

[0011] An embodiment of the present invention provides a vibration reducing device of a knob-type shift device, which is a knob-type shift device having a shift knob that rotates by a driver's operation, in which a damper is formed in a main housing corresponding to a fixed component, and a protrusion that contacts the damper is formed in a rotating body or a shift knob that is a rotating component, and when the shift knob returns from the position of the Nd gear or the D gear to the neutral gear position or from the position of the Nr gear or the R gear to the neutral gear position, the return rotation speed of the shift knob can be reduced by contact between the protrusion and the damper to eliminate the vibration phenomenon to the greatest extent, thereby reducing the vibration noise and enhancing the marketability.

[0012] According to an embodiment of the present invention, a vibration reduction device of a knob-type shifting apparatus includes: a damper, which is arranged to be fixed to a main housing; and a protrusion, which is formed on a component that rotates relative to the main housing and is used to reduce the return rotation speed of the shift knob by contacting the damper when the shift knob returns from the Nd gear position or the D gear position to the neutral gear position or from the Nr gear position or the R gear position to the neutral gear position, thereby reducing vibration.

[0013] The shift knob is configured to be coupled with a rotating body so that the shift knob and the rotating body rotate together relative to the main housing, and the protrusion is formed to protrude downward from a bottom of the rotating body.

[0014] The protrusion is formed to protrude downward from a bottom of the shift knob that rotates relative to the main housing.

[0015] The dampers are configured in two and fixed at positions facing each other in a circumferential direction, and the protrusions are formed in two and configured to match the dampers one-to-one.

[0016] The damper is made of silicon material having excellent damping performance and less wear.

[0017] The damper is integrally coupled with the main housing by insert injection during manufacturing of the main housing.

[0018] The protrusion is formed in a circular shape protruding downward in a circumferential direction which is a rotation direction of the shift knob.

[0019] An embodiment of the present invention is that in a knob-type shift device having a shift knob that rotates by a driver's operation, a damper is constructed in a main housing corresponding to a fixed component, and a protrusion that contacts the damper is formed in a rotating body or a shift knob that is a rotating component, and when the shift knob returns from the position of the Nd gear or the D gear to the neutral gear position or from the position of the Nr gear or the R gear to the neutral gear position, the return rotation speed of the shift knob can be reduced by the contact between the protrusion and the damper to eliminate the vibration phenomenon to the greatest extent, thereby reducing the vibration noise and enhancing the marketability.

[0020] In addition, an embodiment of the present invention is a structure in which the bearing is installed between the boss portion of the main housing and the rotating body connected to the shift knob, and direct contact between the boss portion corresponding to the fixed part and the shift knob and the rotating body corresponding to the rotating part can be prevented to prevent friction from being generated through the bearing during the rotation operation of the shift knob, thereby preventing wear and noise due to friction to enhance durability. In addition, the uneven feeling caused by friction is eliminated, thereby enhancing the operating feel.

[0021] In addition, by using bearings, the embodiments of the present invention can eliminate the friction generated between the boss portion corresponding to the fixed component and the shift knob and the rotating body corresponding to the rotating component, and eliminate the sticking phenomenon when the shift knob rotates from the neutral position to the D gear position or from the neutral position to the R gear position, thereby improving the quality.

[0022] In addition, an embodiment of the present invention is that the PCB, the light source and the light guide are configured to be fixed to a main housing corresponding to a fixed component, and have a reflector and a lighting window, the reflector being used to reflect the light of the light source onto a shift knob which is a rotating component rotated by the operation of the driver, so as to realize ambient light in a knob-type shift device having a shift knob which is rotated by the operation of the driver, and, through this configuration, ambient light can be accurately realized while minimizing the light loss of the light source in the knob-type shift device in which the shift knob is rotated by the operation of the driver, thereby enhancing marketability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and other advantages of the embodiments of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0024] Figure 1 is an exploded perspective view of a knob-type shifting device for an electronic transmission system according to an embodiment of the present invention;

[0025] Figure 2 and Figure 3 yes Figure 1 A three-dimensional view of the connection and a cross-sectional view of the connection state;

[0026] Figure 4 is Figure 3 an enlarged view of a portion on which a bearing is mounted;

[0027] Figure 5 is an enlarged view of a portion on which a bearing retainer is mounted according to an embodiment of the present invention;

[0028] Figure 6 is an enlarged view of a portion on which a knob flange is formed according to an embodiment of the present invention;

[0029] Figure 7 is a diagram for explaining a configuration for providing an operational feel and a return force of a shift knob according to an embodiment of the present invention;

[0030] Figure 8 is an exploded perspective view of an ambient light device according to an embodiment of the present invention;

[0031] Fig. 9 yes Figure 8 A cross-sectional view of the connection state;

[0032] Fig.10 is a top view of a rotary shift device with ambient light illuminated therein according to an embodiment of the present invention; and

[0033] Fig.11 and Fig.12 They are a perspective view and a partially enlarged view, respectively, for explaining a chatter reducing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] Hereinafter, a chatter reducing apparatus for a knob type shift device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[0035] like Figures 1 to 12 As shown, the knob type shifting device for an electronic transmission system according to an embodiment of the present invention includes a main housing 100 having a boss portion 110 protruding upward.

[0036] The main housing 100 is mounted to be fixed to a vehicle body (console, center instrument panel, etc.) at the side of a driver's seat, and is integrally formed with a boss portion 110 formed in a cylindrical shape and protruding upward.

[0037] The boss portion 110 includes a first boss 111 having a cylindrical shape with a predetermined diameter and a second boss 112 formed in a cylindrical shape having a larger diameter than the first boss 111 and located outside the first boss 111 .

[0038] The bearing 200 is installed to be fitted on the outside of the boss portion 110 , the rotating body 300 is installed to be fitted on the outside of the bearing 200 , and the rotating body 300 is coupled with the shift knob 400 rotated by the operation of the driver's hand.

[0039] The bearing 200 includes an inner ring 210, an outer ring 220 and a plurality of balls 230; the inner ring 210 is forcibly pressed into and assembled onto the outside of the second boss 112 to be integrally connected to the second boss 112; the outer ring 220 is forcibly pressed into and assembled onto the inside of the rotating body 300 to be integrally connected to the rotating body 300; the plurality of balls 230 are located between the inner ring 210 and the outer ring 220.

[0040] The rotating body 300 is connected to the lower part of the shift knob 400 to extend downward from the shift knob 400 and be formed integrally with the shift knob 400. The rotating body 300 and the bearing 200 become a structure covered by the shift knob 400 without being exposed to the outside, and the shift knob 400 and the rotating body 300 rotate together under the operation of the driver.

[0041] The bearing 200 is installed to be inserted into a gap between the second boss 112 and the rotating body 300 , and is installed such that the bearing 200 is fitted to the outside of the second boss 112 and the rotating body 300 is fitted to the outside of the bearing 200 .

[0042] That is, the inner ring 210 of the bearing 200 is coupled by being press-fitted to the outside of the second boss 112 , and the rotating body 300 coupled to the shift knob 400 is press-fitted to the outside of the outer ring 220 of the bearing 200 .

[0043] At this time, bearing support protrusions 112a and 310 in which the lower end of the bearing 200 is located are respectively formed on the outside of the second boss 112 and the inside of the rotating body 300, and the bearing support protrusions 112a and 310 are used to support the lower end of the bearing 200 to limit the downward movement of the bearing 200.

[0044] The bearing support protrusion 112 a formed on the second boss 112 supports the lower end of the inner ring 210 of the bearing 200 , and the bearing support protrusion 310 formed on the rotating body 300 supports the lower end of the outer ring 220 of the bearing 200 .

[0045] Therefore, if the driver rotates the shift knob 400, the rotating body 300 rotates together with the shift knob 400, and the outer ring 220 of the bearing 200 rotates together with the rotating body 300. At this time, the second boss 112 of the main housing 100 and the inner ring 210 of the bearing 200 connected to the second boss 112 become non-rotating fixed parts.

[0046] As described above, according to an embodiment of the present invention, the bearing 200 is installed between the boss portion 110 of the main housing 100 and the rotating body 300 connected to the shift knob 400, and direct contact between the boss portion 110 corresponding to the fixed part and the shift knob 400 and the rotating body 300 corresponding to the rotating part can be prevented to prevent friction from being generated through the bearing 200 during the rotation operation of the shift knob 400, thereby achieving the prevention of wear and noise due to friction to enhance durability. In addition, the uneven feeling caused by friction can be eliminated, thereby enhancing the operating feel.

[0047] In addition, by using the bearing 200, the present invention can eliminate the friction generated between the boss portion 110 corresponding to the fixed component and the shift knob 400 and the rotating body 300 corresponding to the rotating component, so as to eliminate the sticking phenomenon of the shift knob 400 rotating from the neutral position to the D gear position or from the neutral position to the R gear position, thereby improving the quality.

[0048] The embodiment according to the present invention also has a configuration in which the upward movement of the bearing 200 is restricted by using the bearing retainer 500 , thereby preventing the upward separation of the bearing 200 .

[0049] The bearing holder 500 is positioned in the shift knob 400 and is fitted into a gap between the first boss 111 and the second boss 112 to be installed in contact with an upper surface of the bearing 200 .

[0050] In more detail, the light guide 600 is installed to be assembled to the outside of the first boss 111 to be connected to the first boss 111, and the cylindrical retainer connecting part 510 constituting the bearing retainer 500 is assembled in the gap between the light guide 600 and the second boss 112, and the upper and lower ends of the retainer connecting part 510 are respectively formed as triangular protrusion cross-sections, so that the upper triangular protrusion cross-section 511 is connected to the upper side of the light guide 600 with a snap-fit ​​structure, and the lower triangular protrusion cross-section 512 is connected to the snap-fit ​​protrusion 112b formed inside the second boss 112 with a snap-fit ​​structure.

[0051] The bearing pressing portion 520 constituting the bearing retainer 500 is formed to protrude outward from the retainer connecting portion 510, and when the retainer connecting portion 510 is installed to be inserted into the gap between the light guide 600 and the second boss 112, it presses the upper surface of the inner ring 210 of the bearing 200, so that the bearing 200 is pressed by the bearing retainer 500, thereby preventing upward movement and separation.

[0052] The shift knob 400 mainly includes a lower knob 410 and an upper knob 420 . The lower knob 410 is coupled to the rotating body 300 and rotates relative to the main housing 100 . The upper knob 420 is coupled to the lower knob 410 and is operated by the driver.

[0053] Although the lighting window 430 may be included in the knob 400, in another embodiment of the present invention, the lighting window 430 is described as being part of a lighting mechanism for achieving ambient light.

[0054] In the embodiment according to the present invention, describing the inner surface of the shift knob 400 in more detail, the lower inner surface of the lower knob 410 is integrally formed with a knob flange 440 that protrudes toward the bearing 200 installed between the second boss 112 and the rotating body 300 .

[0055] The lower end of the knob flange 440 is configured to be slightly spaced apart from the upper side of the bearing 200, and if the bearing 200 moves upward under the action of external force, the upper surface of the bearing 200 contacts the lower end of the knob flange 440, and therefore, the knob flange 440 is used together with the bearing retainer 500 to prevent the bearing 200 from separating upward.

[0056] The rotary knob type shifting device according to an embodiment of the present invention further includes means for implementing ambient light.

[0057] That is, the ambient light device for a knob-type shifting device according to the present invention also includes a printed circuit board (PCB) 710, multiple light sources 720, a light guide 600 and a light-emitting mechanism; the printed circuit board (PCB) 710 is connected to be fixed to the main housing 100; the multiple light sources 720 are fixed to the PCB 710; the light guide 600 is connected to the main housing 100 and is used to transmit the light of the light source 720; the light-emitting mechanism is arranged in a shift knob 400 rotatably connected relative to the main housing 100 and is used to reflect the light of the light source 720 transmitted through the light guide 600, and irradiate it to the outside of the shift knob 400 in the form of ambient light.

[0058] The D gear, R gear and neutral gear signals generated by the rotation operation of the shift knob 400 and the P gear signal generated by the pressing operation of the P gear button 740 are transmitted to the transmission control unit (TCU) through the PCB 710, and the transmission actuator is operated by the signal issued by the transmission control unit. Moreover, through the operation of the transmission actuator, hydraulic pressure is applied or blocked to the hydraulic circuit at each shift gear of the transmission, thereby electrically performing the shift control.

[0059] The light source 720 mounted to the PCB 710 is an LED light source, and may realize ambient light (ambient light) when the light source 720 is turned on according to a switch operation of a driver.

[0060] The structure for realizing ambient light is described in more detail, which is configured so that the light guide 600 is installed to be assembled into the outside of the first boss 111 formed in the main shell 100 to be connected with the first boss 111, the PCB 710 and the light source 720 are located below the light guide 600, and the light emitting mechanism is located above the light guide 600.

[0061] The light guide 600 is a component for transmitting light generated from the light source 720 toward the reflector 730 described later, and includes a cylindrical portion 610 and a plurality of legs 620; the cylindrical portion 610 is installed to be assembled to the outside of the first boss 111; and the plurality of legs 620 protrude downward from the cylindrical portion 610 to face the light source 720 fixed to the PCB 710.

[0062] The leg portions 620 are configured to be formed in the same number as the light sources 720 so that the leg portions 620 and the light sources 720 are matched one-to-one, respectively.

[0063] Furthermore, an optical device 630 for scattering light to uniformly spread the light of the light source 720 is formed on the entire upper surface of the cylindrical portion 610 constituting the light guide body 600 .

[0064] Diffuse reflection of light can be achieved through the optical device 630.

[0065] Since the light guide 600 is located below the lower knob 410 that constitutes the shift knob 400, the optical device 630 formed on the upper surface of the cylindrical portion 610 of the light guide 600 is configured to face the lower knob 410, so that the portion of the lower knob 410 facing the optical device 630 formed on the upper surface of the cylindrical portion 610 constitutes a light-transmitting portion 411 through which light can pass.

[0066] The light-transmitting portion 411 of the lower knob 410 may be an air layer, or may be formed by a transparent window through which light can pass.

[0067] The light emitting mechanism includes a reflector 730 and a lighting window 430 ; the reflector 730 is installed to fit into the upper side of the lower knob 410 to be positioned above the light transmitting portion 411 ; the lighting window 430 is coupled to the upper knob 420 to cover the opened upper portion of the upper knob 420 .

[0068] The lighting window 430 may be formed of a transparent window or a semi-transparent window through which light can pass.

[0069] If the LED light source 720 is turned on by the driver's switch operation through the control of the PCB 710, the light generated from the light source 720 moves through the light guide 600 and then passes through the light-transmitting portion 411 of the lower knob 410. The light passing through the light-transmitting portion 411 of the lower knob 410 is reflected by the reflector 730 connected to the upper side of the lower knob 410, and the light of the light source 720 reflected from the reflector 730 is reflected again by the surface of the lower knob 410 and the inner surface of the upper knob 420, and then is irradiated to the outside of the shift knob 400 through the lighting window 430, thereby realizing ambient light.

[0070] Therefore, according to the embodiment of the present invention is a configuration that can sufficiently realize ambient light while minimizing light loss of the light source 720 in the knob type shift device that rotates the knob 400 by the driver's operation, and through this configuration, marketability can be enhanced.

[0071] That is, an embodiment of the present invention is a structure in which the PCB 710, the light source 720 and the light guide 600 are configured to be fixed to the main housing 100 corresponding to the fixed part, and have a reflector 730 and a lighting window 430 for reflecting the light of the light source 720 to the shift knob 400 which is a rotating part rotated by the driver's operation, thereby realizing ambient light, and, through this structure, the ambient light can be accurately realized while minimizing the light loss of the light source 720 in the knob-type shift device in which the shift knob 400 is rotated by the driver's operation.

[0072] According to an embodiment of the present invention, since a pattern layer 450 having a pattern of a specific shape can be formed on the surface of the lower knob 410 by using light reflected from the reflector 730, light from the light source 720 reflected from the reflector 730 can be irradiated to the pattern layer 450 formed on the surface of the lower knob 410, and the light irradiated to the pattern layer 450 can be exposed to the outside through the lighting window 430 constituting the shift knob 400, thereby realizing ambient light.

[0073] For example, Fig.10 As shown, ambient light ( L1 ) that provides a feeling of radial diffusion of light through the pattern layer 450 can be realized, and ambient light of various patterns can be realized according to the shape of the pattern layer 450 .

[0074] In addition, according to an embodiment of the present invention, in order to uniformly reflect the light of the light source 720 to the pattern layer 450, the lower surface of the reflector 730 facing the light-transmitting portion 411 in the reflector 730 is preferably formed by the surface of the lower knob 410, that is, the inclined surface 731, so that the angle of the inclined surface 731 is formed into an inclination angle in a shape in which the angle between the pattern layers 450 gradually increases radially toward the outside.

[0075] In addition, the knob-type shifting device according to an embodiment of the present invention also includes a structure that can provide an operating feel (shifting feel) when the driver operates the rotation of the shift knob 400, and when the operating force is released from the rotating shift knob 400, the shift knob 400 is rotated to return to the return position, and the vibration phenomenon when the shift knob 400 is rotated to the return position is reduced.

[0076] That is, the operational sense generating portion 810 is integrally formed on the rotating body 300 , and a concave groove 811 recessed in a circular arc shape is formed at the center portion in the longitudinal direction of the operational sense generating portion 810 .

[0077] The operational feeling generating portion 810 is formed to expand in the radial direction of the rotating body 300 , and both end portions thereof extend in the circumferential direction.

[0078] In addition, one end of the leaf spring assembly 820 is connected to be fixed to the main housing 100, and the roller 830 is rotatably connected to the other end of the leaf spring assembly 820, and, during the rotation of the shift knob 400, the roller 830 is inserted into or disengaged from the groove 811 to contact the side of the operating sense generating portion 810.

[0079] like Figure 7 As shown, when the roller 830 is located in the groove 811 of the operation feeling generating portion 810, the shift position of the vehicle is maintained in the neutral position state.

[0080] If the driver rotates the shift knob 400 clockwise (arrow R1) when the shift gear is in the neutral position, the roller 830 in the groove 811 of the operating sense generating portion 810 is disengaged from the groove 811 by the rotation of the rotating body 300 to contact the surface of the operating sense generating portion 810. At this time, the leaf spring assembly 820 accumulates elastic force while bending outward (arrow M1), and the shift gear is changed to the Nd gear or the D gear.

[0081] In addition, if the driver releases the operating force from the shift knob 400 that has been rotated to the Nd gear position or the D gear position, the leaf spring assembly 820 that has been bent to the outside (arrow M1) applies a force that moves in the direction opposite to the arrow M1 through a restoring force, and the roller 830 that has been disengaged from the groove 811 and in contact with the surface of the operating feel generating portion 810 through the restoring force of the leaf spring assembly 820 performs an operation of reinserting into the groove 811. Through this operation of the roller 830, the shift knob 400 that is in the Nd gear position or the D gear position is rotated counterclockwise (arrow R2) through the restoring force of the leaf spring assembly 820 to return to the neutral position that is the return position.

[0082] In addition, since the rotation from the neutral position to the Nr position or the R position and the returning operation from the Nr position or the R position to the neutral position are the same as described above, a detailed description thereof will be omitted.

[0083] The vibration reducing device according to an embodiment of the present invention includes a damper 910 and a protrusion 920; the damper 910 is configured to be fixed to the main housing 100 corresponding to the fixed component; the protrusion 920 is formed on a component that rotates relative to the main housing 100, and is used to reduce (lower) the return rotation speed of the shift knob 400 by contacting the damper 910 when the shift knob 400 returns from the Nd gear position or the D gear position to the neutral gear position or from the Nr gear position or the R gear position to the neutral gear position, thereby reducing vibration.

[0084] The protrusion 920 may be formed to protrude downward from the bottom of the rotating body 300 as a component that rotates relative to the main housing 100 , or may be formed to protrude downward from the bottom of the shift knob 400 that rotates relative to the main housing 100 .

[0085] As in an embodiment of the present invention, if the rotating body 300 is coupled to the lower knob 410 constituting the shift knob 400 and the shift knob 400 and the rotating body 300 rotate integrally together, the protrusion 920 may be formed to protrude downward from the bottom of the rotating body 300.

[0086] However, if the structure does not include a rotating body, the protrusion 920 may be formed to protrude downward from the bottom of the shift knob 400 .

[0087] According to the embodiment of the present invention, the damper 910 is configured in two to be fixed at positions facing each other in the circumferential direction, and the protrusion 920 is also configured and shaped in two to be matched with the damper 910 one-to-one.

[0088] If there are more than three dampers 910, there is a possibility that the problem will arise that the shift knob 400 may not be able to smoothly return to the neutral position (return position) due to the large resistance caused by friction when contacting the protrusion 920. If there are less than two dampers 910, there is a disadvantage that the vibration reduction effect cannot be accurately achieved. Therefore, it is preferred to construct the damper 910 and the protrusion 920 into two respectively and match them one-to-one to achieve the smooth return of the shift knob 400 and the sufficient vibration reduction effect.

[0089] The damper 910 according to the embodiment of the present invention is preferably made of a silicon material having excellent damping performance and less wear, but may also be made of various materials without being limited to the silicon material.

[0090] The damper 910 can be manufactured to be integrally connected to the main shell 100 by insertion injection during the injection manufacturing of the main shell 100, thereby forming a groove in the main shell 100, thereby ensuring a stronger connection force and better anti-separation function compared to the construction of connecting the damper 910 to the groove of the main shell 100 by simple insertion.

[0091] In addition, the protrusion 920 according to the embodiment of the present invention is formed to extend in the circumferential direction (see FIG. 1 ) which is the rotation direction of the shift knob 400. Fig.12 The circular structure protruding downward as shown by the arrow Z1 in the figure can realize a smooth deceleration function when the shift knob 400 returns to rotate and contacts the damper 910, and can eliminate the noise generated during deceleration.

[0092] As described above, the knob-type shift device according to the embodiment of the present invention is a structure in which the bearing 200 is installed between the boss portion 110 of the main housing 100 and the rotating body 300 connected to the shift knob 400, and can prevent direct contact between the boss portion 110 corresponding to the fixed part and the shift knob 400 and the rotating body 300 corresponding to the rotating part, so as to prevent friction from being generated through the bearing 200 during the rotation operation of the shift knob 400, thereby achieving the prevention of wear and noise due to friction to enhance durability. In addition, the uneven feeling caused by friction can be eliminated, thereby enhancing the operating feel.

[0093] In addition, by using the bearing 200, the embodiment of the present invention can eliminate the friction generated between the boss portion 110 corresponding to the fixed component and the shift knob 400 and the rotating body 300 corresponding to the rotating component, and eliminate the sticking phenomenon of the shift knob 400 when rotating from the neutral position to the D gear position or from the neutral position to the R gear position, thereby improving the quality.

[0094] In addition, an embodiment of the present invention is a structure in which the PCB 710, the light source 720 and the light guide 600 are configured to be fixed to the main housing 100 corresponding to the fixed part, and have a reflector 730 and a lighting window 430 for reflecting the light of the light source 720 to the shift knob 400 which is a rotating part rotated by the operation of the driver, thereby realizing ambient light in the knob-type shift device having the shift knob 400 which is rotated by the operation of the driver, and, through this structure, the ambient light can be accurately realized while minimizing the light loss of the light source 720 in the knob-type shift device in which the shift knob 400 is rotated by the operation of the driver, thereby enhancing the marketability.

[0095] In addition, an embodiment of the present invention is that in a knob-type shifting device having a shift knob 400 that rotates by a driver's operation, a damper 910 is formed in a main housing 100 corresponding to a fixed component, and a protrusion 920 that contacts the damper 910 is formed in a rotating body 300 or a shift knob 400 that is a rotating component, and when the shift knob 400 returns from the position of the Nd gear or the D gear to the neutral gear position or from the position of the Nr gear or the R gear position to the neutral gear position, the return rotation speed of the shift knob 400 can be reduced through the contact between the protrusion 920 and the damper 910 to eliminate the vibration phenomenon to the greatest extent, thereby reducing the vibration noise and enhancing the marketability.

[0096] While the present invention has been shown and described with respect to the particular embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention as defined in the claims.

Claims

1. A vibration reduction device for a knob-type shifting device, comprising: a damper configured to be fixed to the main housing; a protrusion formed on a rotating body configured to rotate relative to the main housing, the rotating body being coupled to the shift knob, and the protrusion being configured to reduce a return rotation speed of the shift knob by contacting the damper when the shift knob returns from a position of the Nd gear position or the D gear position to a neutral gear position or from a position of the Nr gear position or the R gear position to a neutral gear position; as well as an operation feeling generating portion, which is integrally formed on a rotating body coupled to the shift knob and elastically supported by a leaf spring assembly, one end of which is fixed to the main housing, and the other end of which is rotatably coupled with a roller to contact the operation feeling generating portion, The operation sense generating portion is formed to expand in the radial direction of the rotating body and its two ends extend in the circumferential direction, and a groove recessed in a circular arc shape is formed in the central part in the longitudinal direction of the operation sense generating portion, and during the rotation of the shift knob, the roller is inserted into or separated from the groove to contact the side surface of the operation sense generating portion; When the operating force is released from the rotating shift knob, the elastic restoring force of the leaf spring assembly returns the shift knob to the neutral position.

2. The vibration reduction device of the knob type shifting device according to claim 1, wherein: The shift knob is configured such that the shift knob and the rotating body rotate together relative to the main housing.

3. The vibration reduction device of the knob type shifting device according to claim 1, wherein: The protrusion is formed to protrude downward from the bottom of the rotating body.

4. The vibration reduction device of the knob type shifting device according to claim 1, wherein: The damper is configured in two and fixed at positions facing each other in the circumferential direction; and The protrusion is formed in two and is configured to be matched with the damper on a one-to-one basis.

5. The vibration reduction device of the knob type shifting device according to claim 1, wherein: The damper is made of silicon material.

6. The vibration reduction device of the knob type shifting device according to claim 1, wherein: The damper is integrally coupled with the main housing by insert injection during manufacturing of the main housing.

7. A vehicle comprising: Car body; a main housing fixed to the vehicle body; as well as A vibration reduction device for a knob-type gear shifting device, comprising: a damper fixed to the main housing; a protrusion formed on a rotating body configured to rotate relative to the main housing, the rotating body being coupled to the shift knob, The protrusion is configured to reduce the return rotation speed of the shift knob by contacting the damper when the shift knob returns from the Nd gear position or the D gear position to the neutral gear position or from the Nr gear position or the R gear position to the neutral gear position. The protrusion is configured to pass through the upper end of the damper while contacting the upper end of the damper, reducing the return rotation speed of the shift knob due to friction resistance occurring between the protrusion and the damper; and an operation feeling generating portion, which is integrally formed on a rotating body connected to the shift knob and elastically supported by a leaf spring assembly, wherein a first end of the leaf spring assembly is fixed to the main housing and a second end of the leaf spring assembly is rotatably coupled with a roller to contact the operational sense generating portion, The operation feeling generating portion is formed to expand in the radial direction of the rotating body and its two ends extend in the circumferential direction, and a groove depressed in a circular arc shape is formed in the central portion in the longitudinal direction of the operation feeling generating portion, and during the rotation of the shift knob, the roller is inserted into or separated from the groove to contact the side surface of the operation feeling generating portion; When the operating force is released from the rotated shift knob, the elastic restoring force of the leaf spring assembly returns the shift knob.

8. The vehicle according to claim 7, wherein: The shift knob is configured such that the shift knob and the rotating body rotate together relative to the main housing.

9. The vehicle according to claim 7, wherein: The protrusion is formed to protrude downward from the bottom of the rotating body.

10. The vehicle according to claim 7, wherein: The damper is configured in two and fixed at positions facing each other in the circumferential direction; and The protrusion is formed in two and is configured to be matched with the damper on a one-to-one basis.

11. The vehicle according to claim 7, wherein: The damper is made of silicon material.

12. The vehicle according to claim 7, wherein: The damper is integrally coupled with the main housing by insert injection during manufacturing of the main housing.

13. A vibration reduction device for a knob-type gear shifting device, comprising: a damper configured to be fixed to a main housing, wherein the main housing is configured to be fixed to a vehicle body; a protrusion formed on a rotating body configured to rotate relative to the main housing, the rotating body being coupled to the shift knob, wherein the protrusion is configured to contact the damper to reduce a return rotation speed of the shift knob when the shift knob returns from a position of the Nd gear position or the D gear position to a neutral gear position or from a position of the Nr gear position or the R gear position to a neutral gear position; as well as an operation feeling generating portion, which is integrally formed on a rotating body connected to the shift knob and elastically supported by a leaf spring assembly; wherein a first end of the leaf spring assembly is fixed to the main housing and a second end of the leaf spring assembly is rotatably coupled with a roller to contact the operational sense generating portion; The protrusion is configured to pass through the upper end of the damper while contacting the upper end of the damper, and reduce the return rotation speed of the shift knob due to friction resistance occurring between the protrusion and the damper; The operation feeling generating portion is formed to expand in the radial direction of the rotating body and its two ends extend in the circumferential direction, and a groove depressed in a circular arc shape is formed in the central portion in the longitudinal direction of the operation feeling generating portion, and during the rotation of the shift knob, the roller is inserted into or separated from the groove to contact the side surface of the operation feeling generating portion; When the operating force is released from the rotated shift knob, the elastic restoring force of the leaf spring assembly returns the shift knob.

14. The judder reduction device of the knob type shift apparatus according to claim 13, further comprising the operation feeling generating portion formed integrally in the rotating body, wherein: The operational sense generating portion is configured to expand in a radial direction of the rotating body.

15. The vibration reduction device of the knob type shifting device according to claim 13, wherein: The shift knob comprises: Upper knob; Lower knob; and Lighting window.

16. The vibration reduction device of the knob type shifting device according to claim 13, wherein: The damper is configured in two and fixed at positions facing each other in the circumferential direction; and The protrusion is formed in two and is configured to be matched with the damper on a one-to-one basis.

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