阅读说明：本技术 一种用于车辆的拨盘换档杆装置 (Dial shift lever device for vehicle ) 是由 金东愿 姜龙洙 于 2019-08-20 设计创作，主要内容包括：本发明提供了一种用于车辆的拨盘换档杆装置,其包括：拨盘旋钮,其可通过用于改变换档档位的用户操作而从预定基准位置旋转；按钮驱动部,其包括多个按钮,多个按钮周向地设置在形成于拨盘旋钮的下部中的接收凹部中,并且当多个按钮中的至少一个按钮通过拨盘旋钮的旋转而被按压时,按钮驱动部产生用于选择换档档位的信号；以及导向组件,其耦合到拨盘旋钮的下部并且锁定拨盘旋钮的旋转或释放拨盘旋钮的旋转的锁定。(The present invention provides a dial shift lever device for a vehicle, including: a dial knob rotatable from a predetermined reference position by a user operation for changing a shift range; a button driving part including a plurality of buttons that are circumferentially disposed in a receiving recess formed in a lower portion of the dial knob, and that generates a signal for selecting a shift range when at least one of the plurality of buttons is pressed by rotation of the dial knob; and a guide assembly coupled to a lower portion of the dial knob and locking or releasing locking of rotation of the dial knob.)

1. A dial-shift lever device for a vehicle, the dial-shift lever device comprising:

a dial knob that is rotated from a predetermined reference position by an operation of a user changing a shift range;

a button driving part including a plurality of buttons that are circumferentially disposed in a receiving recess formed in a lower portion of the dial knob and generate a signal for selecting the shift range when at least one of the plurality of buttons is pressed by rotation of the dial knob; and

a guide assembly coupled to the lower portion of the dial knob and locking or releasing locking of rotation of the dial knob.

2. The dial shift lever device for vehicles as claimed in claim 1, wherein said guide assembly comprises:

a guide bracket having a first cylindrical coupling recess formed therein;

a guide cover inserted and coupled to the first coupling recess and having a coupling hole formed at the center of the guide cover and to which the lower portion of the dial knob is coupled and a guide groove formed at a predetermined distance from the coupling hole;

a solenoid coupled to a second coupling recess formed to extend from one side of an outer circumferential surface of the first coupling recess; and

a shift locking lever having one end axially coupled to a coupling portion formed between the first coupling recess and the second coupling recess and rotated, and the other end locking or releasing the dial knob according to the driving of the solenoid.

3. The dial shift lever device for vehicles as claimed in claim 2, wherein the dial knob is rotatable when the lock of the shift lock lever is released by driving the solenoid according to a brake operation of the vehicle.

4. A dial shift lever device for a vehicle as claimed in claim 3, wherein said dial knob comprises:

a cylindrical body;

a return spring wound around a lower portion of the cylindrical body; and

a wing extending outwardly from the lower portion of the cylindrical body,

wherein at least one protrusion moving along the guide groove is formed on a lower portion of the wing part,

and wherein a catching portion having a multi-stage structure including a first end portion and a second end portion is formed in a portion of the wing portion, and a plurality of catching grooves through which the shift locking lever is caught each time the shift position is selected are formed at predetermined intervals at an end of the second end portion.

5. The dial shift lever device for vehicles as claimed in claim 4, wherein when the dial knob is vertically pressed by a user's operation, the shift locking lever caught by the catching groove is moved to the first end portion, and the dial knob is returned to the reference position by an elastic restoring force of the return spring.

6. A dial shift lever device for vehicles as claimed in claim 5, characterized in that one end of the return spring is fixed to the wing and the return spring is wound at least once on the lower part of the cylindrical body.

7. The dial shift lever device for vehicles as claimed in claim 4, wherein a protrusion limiting rotation of the dial knob within a predetermined range is formed on one side of the wing.

8. The dial shift lever device for vehicle as claimed in claim 1, wherein the button driving part comprises:

a cylindrical shaft on which a plurality of fixing fins are disposed at predetermined distances along the outer circumferential surface of the cylindrical shaft;

a plurality of buttons disposed between the plurality of fixing fins;

a plurality of switch rubbers which are respectively disposed under the plurality of buttons and are pressed as at least one of the plurality of buttons descends vertically; and

a circuit board that generates a signal corresponding to a corresponding shift position when the circuit board is disposed under the plurality of switch rubbers and pressed.

9. The dial shift lever device for vehicles as claimed in claim 8, wherein the button driving part further comprises a display unit coupled and fixed to an upper portion of the cylindrical shaft and displaying the shift position selected by the dial knob.

10. The dial shift lever device for vehicles as claimed in claim 8, wherein the circuit board includes a plurality of contact switches respectively disposed under the plurality of switch rubbers, and wherein, when a lower portion of the pressed switch rubber is brought into contact with the contact switches, the corresponding contact switches are turned on to generate signals corresponding to the corresponding shift positions.

11. The dial shift lever device for vehicles as claimed in claim 6, wherein the circuit board generates a signal corresponding to a P range when all of the plurality of buttons are vertically lowered as the dial knob is pressed by the user's manipulation and all of the plurality of switch rubbers are pressed.

Technical Field

The present invention relates to a shift lever device, and more particularly, to a dial shift lever device for a vehicle, which allows a shift range to be selected by converting a rotational motion of a dial knob into a linear motion.

Background

Generally, a transmission converts power generated by an engine into rotational force required according to a vehicle speed and transmits it to drive wheels. Transmissions are classified into manual transmissions and automatic transmissions. A driver driving a vehicle can change a shift range of a manual transmission or an automatic transmission to a shift range desired by the driver by manipulating a console end around a driver seat or a shift lever mounted on a steering wheel.

The manual transmission operates as follows: when the driver selects a gear suitable for the driving condition of the vehicle by using the shift lever, the motion desired by the driver is transmitted to the transmission through the cable or the lever. The automatic transmission operates in the following manner: the driver moves the shift lever to drive the cut-off switch through the cable so that the motion desired by the driver is transmitted to the transmission.

Recently, an electronic shift lever is increasingly used instead of a mechanical shift lever, and a mechanical connection structure between a transmission and a shift lever in the electronic shift lever has been replaced by an electrical connection structure through an actuator and an ECU. Unlike the mechanical shift lever, the electronic shift lever has no mechanical cable connection structure and should include a position sensor that converts a driver's shift intention into an electronic signal. However, the electronic shift lever has excellent lever operation force or excellent operation feeling, and is easy to operate.

The electronic shift lever has a lever type, a dial type, a push button type, or the like. Specifically, the dial type electronic shift lever has a structure in which a driver selects his/her desired shift mode by rotating a knob. In the dial type electronic shift lever, components for realizing each of the shift stages P/R/N/D of the vehicle are added, and price competitiveness of a product is lowered due to component management and production problems. Moreover, the function, performance and sensitivity of the product are also unsatisfactory.

Disclosure of Invention

Technical problem

Embodiments of the present invention are designed to solve these problems in the prior art. An object of an embodiment of the present invention is to provide a dial shift lever device for a vehicle, which allows a user to select a shift range by changing a rotational movement of a dial knob to a linear movement.

However, the object of the present invention is not limited to the above description, and various extensions may be made without departing from the scope and spirit of the present invention.

Technical scheme

One embodiment of a dial shift lever device for a vehicle. The dial shift lever device includes: a dial knob that is rotated from a predetermined reference position by an operation of a user for changing a shift range; a button driving part including a plurality of buttons that are circumferentially disposed in a receiving recess formed in a lower portion of the dial knob, and that generates a signal for selecting a shift range when at least one of the plurality of buttons is pressed by rotation of the dial knob; and a guide assembly coupled to a lower portion of the dial knob and locking or releasing locking of rotation of the dial knob.

The guide assembly may include: a guide bracket having a first cylindrical coupling recess formed therein; a guide cover inserted and coupled to the first coupling recess, and having a coupling hole formed at the center thereof and a guide groove to which a lower portion of the dial knob is coupled, the guide groove being formed at a predetermined distance from the coupling hole; a solenoid coupled to a second coupling recess formed to extend from one side of an outer circumferential surface of the first coupling recess; and a shift locking lever, one end of which is axially coupled to a coupling portion formed between the first coupling recess and the second coupling recess and is rotated according to driving of the solenoid, and the other end of which also locks or releases the dial knob therewith.

When the lock of the shift lock lever is released by driving the solenoid according to the braking operation of the vehicle, the dial knob may be rotatable.

The dial knob may include: the spring comprises a cylindrical main body, a return spring wound on the lower part of the cylindrical main body and a wing part extending outwards from the lower part of the cylindrical main body. At least one protrusion moving along the guide groove is formed on a lower portion of the wing part. A catching portion is formed in a portion of the wing portion, the catching portion having a multi-step structure including a first end portion and a second end portion, and a plurality of catching grooves formed at the end portion of the second end portion at predetermined intervals, by which the shift locking lever is caught each time the shift position is selected.

When the user vertically presses the dial knob by the operation, the shift locking lever caught by the catching groove moves to the first end portion, and the dial knob may return to the reference position by the elastic restoring force of the return spring.

One end of the return spring may be fixed to the wing, and the return spring may be wound on the lower portion of the cylindrical body at least once.

A protrusion limiting rotation of the dial knob within a predetermined range may be formed on one side of the wing.

The button driving part may include: a cylindrical shaft on which a plurality of fixing fins are disposed at predetermined distances along an outer circumferential surface of the cylindrical shaft; a plurality of buttons disposed between the plurality of fixing fins; a plurality of switch rubbers which are respectively disposed under the plurality of buttons and are pressed as at least one of the plurality of buttons is vertically lowered; and a circuit board that generates signals corresponding to the respective shift stages when the circuit board is disposed under the plurality of switch rubbers and pressed.

The button driving part may further include a display unit coupled and fixed to an upper portion of the cylindrical shaft and displaying a shift position selected by the dial knob.

The circuit board may include a plurality of contact switches disposed under the plurality of switch rubbers, respectively. When the lower portion of the pressed switch rubber is in contact with the contact switch, the corresponding contact switch may be opened to generate a signal corresponding to the corresponding shift position.

When all of the plurality of buttons are vertically lowered as the dial knob is pressed by the user's operation and all of the plurality of switch rubbers are pressed, the circuit board may generate a signal corresponding to the P range.

Advantageous effects

According to an embodiment of the present invention, each time the dial knob is rotated at a certain angle, one of a plurality of buttons provided inside the dial knob is pressed by a protrusion formed on an inner upper portion of the dial knob, and a shift range corresponding to the pressed button is selected, so that the shift range is selected by changing a rotational movement of the dial knob to a linear movement.

Also, since the shift range is selected by changing the rotational movement of the dial knob to the linear movement, the number of parts of the required product is reduced. The product gap is small so that the product can be smaller.

Further, a protrusion formed on an inner upper portion of the dial knob presses a corresponding button, and the switch rubber is compressed. Therefore, the user can feel the difference of the gear shift.

However, the effects of the present invention are not limited to the above description, and various extensions may be made without departing from the scope and spirit of the present invention.

Drawings

Fig. 1a to 1b are perspective views of a dial shift lever device for a vehicle according to an embodiment of the present invention;

fig. 2 is an exploded perspective view for a dial shift lever device according to an embodiment of the present invention;

FIG. 3 shows a view of the shape of the dial knob shown in FIG. 2;

fig. 4 is a view showing a shape of the button actuation part shown in fig. 2;

FIG. 5 is a view showing a detailed configuration of the guide cover shown in FIG. 2;

FIG. 6 is a view showing the shape of the shift locking lever shown in FIG. 2;

FIG. 7 is a view for describing a shift pattern method according to the embodiment of the invention;

FIG. 8 is a view for describing a shift locking method according to an embodiment of the present invention;

fig. 9 is a view for describing an anti-overrotation structure according to an embodiment of the present invention;

fig. 10 is a view for describing a shifting force generating method according to the embodiment of the invention;

fig. 11 is a view for describing a switch contact method according to an embodiment of the present invention;

fig. 12 is a view for describing a P-range manual return method according to an embodiment of the present invention;

fig. 13 is a view for describing a shift position display method according to the embodiment of the invention;

fig. 14 is a view for describing a P range manual release method according to an embodiment of the present invention;

in the figure:

100: main body

200: dial assembly

210: dial knob

220: reset spring

230: push button driving part

300: guide assembly

310: guide cover

320: guide bracket

Detailed Description

The following detailed description of the invention shows specific embodiments of the invention and will be provided in conjunction with the accompanying drawings. The embodiments will be described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different from each other and are not necessarily mutually exclusive. For example, a particular shape, structure, or characteristic of one embodiment described in the present invention may be implemented within other embodiments without departing from the spirit and scope of the present invention. Further, it is to be noted that the location or arrangement of individual components within each disclosed embodiment may be modified without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense. The scope of the invention is to be defined only by the claims appended hereto, and by their full scope of equivalents, if they are fully described. In the drawings, like numerals refer to the same or similar functionality in many respects.

Hereinafter, a dial shift lever device for a vehicle according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings. In particular, embodiments of the present invention propose a new structure. According to the new structure, each time the dial knob is rotated by a certain angle, one of the plurality of buttons provided inside the dial knob is pressed by the protrusion formed on the inner upper portion of the dial knob, thereby selecting the shift position corresponding to the pressed button.

Fig. 1a to 1b are perspective views of a dial shift lever device for a vehicle according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of a dial shift lever device for a vehicle according to an embodiment of the present invention.

Referring to fig. 1a to 1b, a dial shift lever device for a vehicle according to an embodiment of the present invention may include a body 100, a dial assembly 200, a guide assembly 300, and a controller (not shown).

The main body 100 may be installed in a vehicle and formed as a space for receiving various kinds of gear shifting devices.

The dial assembly 200 may be coupled to the body 100 and may be rotated or pressed by a rotational motion or a pressing motion of a user, so that shift stages, such as R-stage (reverse), N-stage (neutral), and D-stage (drive) shift stages, may be selected.

Referring to fig. 2, the dial assembly 200 may include a dial knob 210, a return spring 220, and a button driving part 230.

The dial knob 210 is a handle of a user, and can be rotated or pressed by a rotation or pressing operation of the user. The dial knob 210 may be located at a reference position and may be rotated or pressed at a predetermined angle from the reference position. The dial knob 210 may be formed in, for example, a cylindrical shape.

One end of the return spring 220 may be connected to the dial knob 210, and the other end of the return spring 220 may be connected to the inner surface of the body 100. When the dial knob 210 is rotated, the return spring 220 is compressed, and the dial knob 210 may return to the reference position by an elastic restoring force. For example, when the dial knob 210 is rotationally moved from the reference position by a predetermined angle to select the shift range, the return spring 220 can return the dial knob 210 to the reference position from the position where the dial knob 210 is rotationally moved by the elastic restoring force.

At least one of a plurality of buttons provided in the dial knob 210 is pressed by a rotation or pressing operation of the dial knob 210, so that the button driving part 230 can generate a signal corresponding to a corresponding shift position and supply the signal to a controller (not shown).

The guide assembly 300 may support the body 100 and the dial assembly 200. Referring to fig. 2, the guide assembly 300 may include a guide cover 310, a guide bracket 320, a shift lock lever 330, a damper bullet 340, and a solenoid 350.

The guide cap 310 may be coupled to the bottom of the button driving part 230 and may guide the rotation of the dial knob 210.

The guide bracket 320 may be supported by being inserted and coupled to the guide cover 310.

One end of the shift locking lever 330 may be axially coupled to the guide bracket 320 and rotated, and the other end of the shift locking lever 330 may perform a function of locking the rotation of the dial knob or releasing the locking of the dial knob. The shift lock spring is wound around the end of the shift lock lever 330. The shift locking spring can provide an elastic restoring force according to the rotation of the shift locking lever 330.

A damper bullet 340 is coupled to the other end of the shift lock lever 330. The damper bullet 340 may perform the following functions: eliminating noise generated when the other end of the shift locking lever 300 contacts the dial knob, or absorbing impact caused when the other end of the shift locking lever 300 contacts the dial knob.

The solenoid 350 may be actuated when coupled to the guide bracket 320. Here, the solenoid 350 may be driven in conjunction with the brake operation signal. The solenoid 350 is driven according to the brake operation signal, thereby controlling the driving of the shift locking lever 330, i.e., the locked or released state of the shift locking lever.

A controller (not shown) may transmit a signal provided from the dial assembly 200, for example, shift range information based on the R, N, and D ranges, to a control device of an automatic transmission of a vehicle.

Fig. 3 shows a view of the shape of the dial knob shown in fig. 2.

Referring to fig. 3(a) to 3(b), the dial knob 210 according to an embodiment of the present invention may include a cylindrical body 211 and wings 212 formed to extend perpendicularly outward from a lower portion of the cylindrical body 211.

The cylindrical body 211 may be formed in a cylindrical shape. The opening 211a may be formed on the top surface of the cylindrical body 211. A receiving recess 211b capable of receiving the button actuation part may be formed at a lower portion of the cylindrical body 211.

A plurality of first protrusions 211c may be formed on an upper portion of the receiving recess 211b at predetermined intervals. The second protrusion 211d may be formed between at least one pair of adjacent first protrusions 211 c. Here, the length of the first protrusion 211c may be smaller than the length of the second protrusion 211 d. The second protrusion 211d may include at least one protrusion. This specification will describe an example including two protrusions. The number or shape of the protrusions may be different according to the shape of the button.

Here, the first protrusion 211c may be formed such that all the buttons constituting the button driving part are pressed when the dial knob is pressed. The second protrusion 211d may be formed to cause a button for selecting a specific shift range among a plurality of buttons constituting the button driving part to be pressed when the dial knob is rotated. Since the second protrusion 211d rides over the upper portion of the button every time the dial knob is rotated, an operation force can be generated.

Here, one second protrusion 211d may be provided, and then one button may be pressed. In addition, two or more second protrusions 211d may be provided, and then two or more buttons may be pressed simultaneously.

The wing 212 is formed to extend outward from the lower portion of the cylindrical body 211. The catching portion 213 may be formed in a portion of the wing portion. The catching part 213 has a multi-stage structure, wherein the multi-stage structure has a first end 213b and a second end 213a lower than the first end 213 b. A plurality of catching grooves G1, G2, G3 and G4 may be formed at an end of the second end 213a at predetermined intervals, and the shift locking lever is caught by the plurality of catching grooves G1, G2, G3 and G4 each time a different shift position is selected. Here, the catching groove will be described taking a case where P, R, N, D four shift positions are provided as an example. However, embodiments of the present invention are not limited thereto.

Here, when the shift locking lever is returned to the P range by the return spring, a protrusion portion for assisting the rotation of the shift locking lever may be formed at the first end portion 213 b.

Fig. 4 is a view showing the shape of the button actuation part shown in fig. 2.

As shown in fig. 4, the button driving part 230 according to an embodiment of the present invention may include a display unit 231, a shaft 232, a button part 233, a switch rubber 234, and a circuit board 235.

The display unit 231 may display shift range information through a shift operation by a user. A connection terminal 231a for transmitting a signal may be formed under the display unit 231.

The shaft 232 is a main body portion of the button driving part. A seating portion 232a on which the display unit is seated is formed on an upper portion of the shaft 232. A connection hole 232b is formed at the middle of the seating portion 232a, wherein the connection terminal 231a of the display unit 231 is inserted into the connection hole 232 b. Further, a plurality of fixing fins 232c for fixing the button may be formed to be spaced apart from each other by a predetermined distance on the outer circumferential surface of the shaft 232 in the outer circumferential direction of the shaft 232. Since the horizontal portion of the shaft 232 is circular, a plurality of fixing fins formed on the outer circumferential surface may be formed in the radial direction.

The button part 233 may include a plurality of buttons disposed between a plurality of fixing fins 232c, wherein the plurality of fixing fins 232c are formed on an outer circumferential surface of the shaft 232. The plurality of buttons may be formed in the same shape, and a central portion of an upper portion of the buttons may be formed as a convex portion.

The plurality of rubbers of the switch rubber 234 are connected to each other to form a ring. The switch rubber 234 is disposed under the button part 233 so that the corresponding rubber can be pressed by the down button.

The circuit board 235 is disposed under the switch rubber 234. A contact switch 235b switched by the pressure receiving rubber 234a is provided. The contact switch 235b is turned on to generate and output a signal for selecting a corresponding shift range.

Fig. 5 is a view showing a detailed configuration of the guide cover shown in fig. 2.

Referring to fig. 5, the guide cover 310 according to an embodiment of the present invention may include a main body 311, a guide groove 312, guide ends 313a and 313b, and a protrusion 314.

A cylindrical coupling hole 311a is formed at the center of the body 311, and a support 311b extending inward by a predetermined length may be formed on an inner circumferential surface of the coupling hole 311 a. A dial knob may be provided and supported on the support 311b, and a button driving part interworking with the dial knob may be provided under the support 311 b.

The catching portion 213 of the dial knob 210 is inserted into and coupled to the guide groove 312. The guide groove 312 may be formed such that the catching portion 213 of the dial knob 210 can be rotationally moved only in a predetermined portion.

The protrusions 212b formed on the wings 212 of the dial knob 210 may be caught by the guide ends 313a and 313 b. The guide ends 313a and 313b restrict the rotation portion of the dial knob 210 together with the guide groove 312.

The protrusion 314 is formed on one side of the body 311, and has a coupling hole 314a formed in a central portion thereof. An upper portion of the solenoid 350 may be inserted into and coupled to the connection hole 314 a.

Fig. 6 is a view showing the shape of the shift locking lever shown in fig. 2.

Referring to fig. 6, the shift locking lever 330 according to an embodiment of the present invention may include a rotation part 330a, a coupling part 330b, a protrusion part 330c, a receiving part 330d, and a shift locking spring 330 e.

The rotation part 330a may be formed in the form of a circular arc. The coupling part 330b may be formed to vertically extend from one end of the rotation part 330 a. A protrusion 330c caught by a catching groove of the dial knob may be formed on a lower portion of the other end of the rotation part 330 a. A receiving portion 330d receiving the damper bullet may be formed on an upper portion of the other end of the rotating portion 330 a.

The coupling portion 330b is axially coupled to the guide bracket and may rotate about an axis.

The shift lock spring 330e is wound on the outer circumferential surface of the coupling portion 330 b. One end of the shift lock spring 330e is coupled to the rotation part 330a to provide an elastic restoring force according to the rotation of the coupling part. That is, even if the shift lock lever 330 is rotationally moved according to the rotation of the dial knob in the released state, the shift lock spring 330e returns the shift lock lever 330 to the dial knob direction.

Fig. 7 is a view for describing a shift pattern method according to an embodiment of the present invention.

Referring to fig. 7, a shift pattern system using a rotation manner and a pressing manner is applied to a dial shift lever device according to an embodiment of the present invention. The shift range may be selected by rotating the dial knob by a predetermined angle, or alternatively, the P range may be selected by pressing the dial knob.

Referring to fig. 7, the dial knob is rotated by a predetermined angle. Here, the button is pressed by at least one protrusion formed in a receiving recess of the dial knob at a position where the dial knob has been rotated. As a result, the corresponding shift range can be selected. For example, the P position may be selected when the dial knob is in the reference position, the R position may be selected when the dial knob is rotated by 30 degrees, the N position may be selected when the dial knob is rotated by 60 degrees, and the D position may be selected when the dial knob is rotated by 90 degrees. Here, a case where the rotation angle is 30 degrees is described as an example. However, the embodiments of the present invention are not limited thereto, and various angles may be applied.

Referring to fig. 7(b), when the dial knob is pressed, the button is pressed by all the protrusions formed in the receiving recess of the dial knob, so that the P range can be selected.

For example, as shown in fig. 7(c), the shift pattern according to the embodiment of the present invention can be implemented as a push button P position and four rotational P, R, N and D positions.

For another example, as shown in fig. 7(d), a shift pattern according to an embodiment of the present invention may be implemented as a push button P position and four R, N, D and M positions rotated.

For another example, as shown in fig. 7(e), a shift pattern according to an embodiment of the present invention may be implemented as a push button P-position and four rotational P, R, N, D and L-positions.

Fig. 8 is a view for describing a shift locking method according to an embodiment of the present invention.

Referring to fig. 8, a shift locking method is applied to a dial shift lever device according to an embodiment of the present invention. The solenoid 350 operates in conjunction with a brake operation signal so that the shift locking lever 330 can be in a locked state or a released state.

For example, when there is a brake operation signal as shown in fig. 8(a), the solenoid 350 is operated to move the driving portion 350a of the solenoid 350 downward, so that the shift locking lever 330 enters the released state. As a result, the rotation operation of the dial knob 210 can be freely performed.

For another example, when there is no brake operation signal as shown in fig. 8(b), the driving portion 350a of the solenoid 350 returns to its original position, so that the shift locking lever 330 enters a locked state, and it is impossible to perform a rotational operation of the dial node 210.

As described above, in the embodiment of the present invention, the solenoid can control the shift lock lever.

Fig. 9 is a view for describing an anti-overrotation structure according to an embodiment of the present invention.

Referring to fig. 9, an anti-over-rotation structure is applied to a dial shift lever device according to an embodiment of the present invention. The dial knob may be designed to rotate only in a predetermined rotational portion. That is, since the protrusions 212b formed on the wings of the dial knob are caught by the two guide ends formed on the guide cover, the dial knob may be designed to be rotated only between the two guide ends.

For example, when the dial knob selects the shift positions in the order of P-R-N-D, as shown in fig. 9(a), the protrusion 212b of the dial knob is caught in the P position by the guide end of the guide cover, so that the dial knob cannot be rotated counterclockwise. Further, as shown in fig. 9(b), the protrusion 212b of the dial knob is caught by the guide end of the guide cover in the D-position, so that the dial knob cannot be rotated clockwise.

Fig. 10 is a view for describing a shifting force generating method according to an embodiment of the present invention.

Referring to fig. 10, a shifting force generating method is applied to a dial shift lever device according to an embodiment of the present invention. The dial knob 210 is rotated at a predetermined angle. Here, the push button 233 is pressed by a protrusion formed on an inner upper portion of the receiving recess of the dial knob at a position where the dial knob has been rotated. Then, the corresponding rubber 234a of the switch rubber may be compressed by the pressed button.

As such, in the embodiment of the present invention, when the dial node is rotated or pressed to select the shift position, the button is pressed and the switch rubber is compressed, so that the operation force can be generated.

Fig. 11 is a view for describing a switch contact method according to an embodiment of the present invention.

Referring to fig. 11, a switch contact method is applied to a dial shift lever device according to an embodiment of the present invention. The button 233 is pressed by the dial knob 210, and the rubber 234a is compressed by the pressed button and then comes into contact with the contact switch in the circuit board 235.

Thus, in the embodiment of the present invention, the rotational movement of the dial knob is converted into the linear movement by the push button, the switch rubber is brought into contact with the contact switch of the circuit board, and the contact switch is turned on to generate the corresponding shift range signal.

Fig. 12 is a view for describing a P-range manual return method according to an embodiment of the present invention.

Referring to fig. 12, a P-range manual return method is applied to a dial shift lever device according to an embodiment of the present invention. The shift lock lever 330 is separated from the catching groove of the dial knob 210 by pressing the dial knob 210 so that the dial knob 210 can be manually returned to the P range.

That is, regardless of the current shift position, when the user presses the dial knob 210, the shift locking lever 330 is separated from the catching groove of the dial knob 210, moved to the catching portion 213, and seated. Since the shift locking lever 330 is not caught anywhere on the catching portion 213, the dial knob 210 can be returned to the reference position, i.e., the P range, by the elastic restoring force of the return spring.

Here, it is assumed that the load of the shift lock spring of the shift lock lever is F1 and the load of the return spring of the dial knob is F2, F2 is greater than F1, so that the dial knob can be manually returned.

Fig. 13 is a view for describing a shifting position display method according to the embodiment of the invention.

Referring to fig. 13, a shift position display method is applied to a dial shift lever device of an embodiment of the present invention. The selected gear position may be displayed on the display unit. For example, the display unit can display a P range, an R range, an N range, a D range, an M range, and an L range.

Fig. 14 is a view for describing a P range manual release method according to an embodiment of the present invention.

Referring to fig. 14, a P-range manual release method is applied to a dial shift lever device according to an embodiment of the present invention. The user forcibly moves the protrusion of the solenoid 350 downward by using a tool, thereby releasing the locking of the shift lock lever and being able to release the P range.

After releasing the P range, the shift lock lever can be returned using the elastic restoring force of the shift lock spring.

The features, structures, effects, and the like described in the embodiment are included in one embodiment of the present invention and are not necessarily limited to one embodiment. Further, those skilled in the art to which the present embodiment pertains may combine or modify the features, structures, effects, and the like provided in each embodiment in other embodiments. Therefore, contents related to the combination and modification should be construed to be included in the scope of the present invention.

While embodiments of the present invention have been described above, these are only examples and are not intended to limit the present invention. Further, the present invention may be changed and modified in various ways by those skilled in the art without departing from the essential characteristics of the present invention. For example, components described in detail in the embodiments of the present invention may be modified. Furthermore, differences due to modifications and application should be construed as being included in the scope and spirit of the present invention as described in the appended claims.