KR102600494B1 - Automotive transmission - Google Patents

Abstract

The present invention relates to a vehicle shifting device, and more specifically, to a vehicle shifting device that enables shifting operations.
A transmission device for a vehicle according to an embodiment of the present invention includes a shift control unit that rotates around a rotation axis to select one of a plurality of shift stages; and a shift guide part that generates a feeling of operation when the shift control unit rotates, wherein the shift guide part includes: a detent groove in which at least one detent groove is formed; and a detent member inserted into and positioned in the at least one detent groove through an opening of the at least one detent groove when the shift operation unit rotates, wherein the at least one detent groove is directed toward the opening. A first surface at least partially convex; a second surface formed at one end of the first surface in the rotation direction of the shift operation unit; And it may include a third surface formed at the other end of the first surface in the rotation direction of the shift operation unit.

Description

Automotive transmission {Automotive transmission}

The present invention relates to a vehicle shifting device, and more specifically, to a vehicle shifting device that enables shifting operations.

The transmission can change the gear ratio to keep the engine rotation constant depending on the speed of the vehicle, and the driver changes the gear ratio of the transmission using a shift control implemented by a lever, button, dial, etc.

Shift modes of these transmission devices include a manual shift mode in which the driver can change the gear ratio and an automatic shift mode in which the gear ratio is automatically changed according to the vehicle speed when the driver selects D gear.

In addition, a sport mode type transmission device that can perform manual shifting and automatic shifting in one transmission device is being used. The sport mode type transmission basically performs automatic shifting, but can be equipped with a manual shifting gear next to the automatic shifting gear so that the driver can shift manually by increasing or lowering the gear. there is.

Mechanical shifting devices have been used to change the gears of the transmission system using a mechanical transmission method, but recently, electronic shifting devices have been developed in consideration of compact structure and ease of operation, and electronic shifting devices are mechanical. It is called the so-called Shift By Wire or electronic shifter (e-Shifter), which replaces the physical connection with an electronic connection.

Meanwhile, the vehicle transmission device includes a detent member positioned to contact the detent groove in order to provide a feeling of operation to the driver and induce appropriate shifting operation by the driver, and the detent member is elastically supported by a spring or the like and is in contact with the detent groove. The contact state is maintained, and a feeling of operation is provided to the driver according to the profile of the surface in contact with the detent member in the detent groove, and the detent member is inserted and positioned in the detent groove formed in the detent groove to ensure appropriate operation. Shift operation is guided by the position.

At this time, when the detent member is inserted into the detent groove, if it moves along one of the opposing surfaces in the detent groove and collides with the other, an impact due to the collision of the detent member may occur and noise may be generated. Therefore, there is a need for a method to reduce noise by alleviating the impact generated when the detent member is inserted into the detent groove.

Registered Patent Publication No. 10-0726546 (announced on June 11, 2007)

The present invention was designed to solve the above problems, and the technical problem to be achieved by the present invention is to reduce the noise generated when a detent member inserted and positioned in the detent groove collides with the inner surface of the detent groove. The purpose is to provide a transmission device for vehicles.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, a vehicle transmission device according to an embodiment of the present invention includes a shift control unit rotated around a rotation axis to select one of a plurality of shift stages; and a shift guide part that generates a feeling of operation when the shift control unit rotates, wherein the shift guide part includes: a detent groove in which at least one detent groove is formed; and a detent member inserted into and positioned in the at least one detent groove through an opening of the at least one detent groove when the shift operation unit rotates, wherein the at least one detent groove is directed toward the opening. A first surface at least partially convex; a second surface formed at one end of the first surface in the rotation direction of the shift operation unit; And it may include a third surface formed at the other end of the first surface in the rotation direction of the shift operation unit.

When the shift operation unit rotates, the detent member moved to be inserted into the at least one detent groove along any one of the second surface and the third surface is the other of the second surface and the third surface. It may collide with the first surface before colliding with it.

When the shift operation unit rotates, the detent member, which is moved to be inserted into the at least one detent groove along any one of the second surface and the third surface, collides with the first surface to absorb primary shock. and secondary shock absorption can be achieved by colliding with the other one of the second surface and the third surface.

The shift control unit returns to its initial position when an external force applied to select a shift range is removed, and the at least one detent groove may include a detent groove corresponding to the initial position.

The detent member further includes an elastic member that generates an elastic force so that it contacts the detent groove, and the shift operation unit can be returned to the initial position when the external force is removed by the elastic force of the elastic member. .

The detent groove may include at least one hole that enables elastic deformation of the at least one detent groove.

The at least one hole may be formed to have a size greater than or equal to the size of the at least one detent groove in the rotation direction of the shift operation unit.

The at least one hole may allow the at least one detent groove to be elastically deformed by the elastic force when the detent member is inserted into and positioned in the at least one detent groove.

The at least one detent groove may be elastically deformed in a direction in which the first surface faces the at least one hole so that the second surface and the third surface contact both sides of the detent member, respectively.

As for the at least one hole, a portion corresponding to the first surface may have a shorter distance from the at least one detent groove than a portion corresponding to the second surface and the third surface.

Other specific details of the invention are included in the detailed description and drawings.

According to the vehicle transmission device of the present invention as described above, one or more of the following effects are achieved.

When the detent member is inserted into the detent groove and positioned, the impact generated by the detent member colliding with the inner surface of the detent groove is reduced, which has the effect of reducing noise.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a vehicle transmission device according to an embodiment of the present invention.
Figure 2 is a plan view showing a vehicle transmission device according to an embodiment of the present invention.
Figure 3 is a side view showing a vehicle transmission device according to an embodiment of the present invention.
Figure 4 is an exploded perspective view showing a vehicle transmission device according to an embodiment of the present invention.
Figure 5 is a cross-sectional view showing a shift guide unit according to an embodiment of the present invention.
Figure 6 is a cross-sectional view showing a detent groove in which a single detent groove is formed according to an embodiment of the present invention.
7 and 8 are schematic diagrams showing a shift control unit that returns to its initial position when an external force is removed according to an embodiment of the present invention.
Figure 9 is a schematic diagram showing a detent groove according to an embodiment of the present invention.
Figure 10 is a schematic diagram showing the process of absorbing the impact of a detent member according to the shape of the detent groove according to an embodiment of the present invention.
Figure 11 is a schematic diagram showing a detent groove elastically deformed by a hole formed in the detent groove according to an embodiment of the present invention.
Figure 12 is a cross-sectional view showing a detent groove in which a plurality of detent grooves are formed according to an embodiment of the present invention.
Figure 13 is a side view showing a vehicle transmission device according to another embodiment of the present invention.
Figure 14 is a cross-sectional view showing a vehicle transmission device according to another embodiment of the present invention.
Figure 15 is a schematic diagram showing a detent groove according to another embodiment of the present invention.
Figure 16 is a cross-sectional view showing a detent groove in which a plurality of detent grooves are formed according to another embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques are not specifically described in order to avoid ambiguous interpretation of the present invention.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, "comprises" and/or "comprising" means not excluding the presence or addition of one or more other components, steps and/or operations other than the mentioned components, steps and/or operations. Use it as And, “and/or” includes each and every combination of one or more of the mentioned items.

Additionally, embodiments described in this specification will be described with reference to perspective views, cross-sectional views, side views, and/or schematic views, which are ideal illustrations of the present invention. Accordingly, the form of the illustration may be modified depending on manufacturing technology and/or tolerance. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include changes in form produced according to the manufacturing process. Additionally, in each drawing shown in the present invention, each component may be shown somewhat enlarged or reduced in consideration of convenience of explanation.

Hereinafter, the present invention will be described with reference to drawings for explaining a vehicle transmission device according to embodiments of the present invention.

Figure 1 is a perspective view showing a vehicle transmission device according to an embodiment of the present invention, Figure 2 is a plan view showing a vehicle transmission device according to an embodiment of the present invention, and Figure 3 is a vehicle transmission device according to an embodiment of the present invention. It is a side view showing the device, and Figure 4 is an exploded perspective view showing a vehicle transmission device according to an embodiment of the present invention.

Referring to FIGS. 1 to 4 , a vehicle transmission device 1 according to an embodiment of the present invention may include a shift operation unit 100 and a shift guide unit 200.

In an embodiment of the present invention, the vehicle transmission device 1 will be described as an example of being installed between the center fascia and the console box of the vehicle, but the present invention is not limited to this. The vehicle transmission device 1 can be installed in various locations that are easily accessible to the driver.

The shift control unit 100 may be rotatably positioned on one side of the shift housing 300, and the driver can select one of a plurality of shift ranges by holding the shift control unit 100 and rotating it around the rotation axis Ax1. There will be.

In an embodiment of the present invention, R, N, and D stages can be selected by rotating the shift operation unit 100, and the order of R, N, and D stages or their order depending on the rotation direction and angle of the shift operation unit 100. A case in which shift stages are selected in reverse order will be described as an example, but the selectable shift stages can be changed in various ways by rotating the shift operation unit 100, and some shift stages are provided separately from the shift operation unit 100. It can also be selected by operating a button or switch.

At this time, the shift housing 300 includes a shift function that allows a shift range to be selected when the shift operation unit 100 is rotated, a shift lock function that allows selection of another shift range when the shift condition is satisfied in a given shift range, and Various components can be accommodated to implement functions such as automatically returning to P when the engine is turned off.

The shift operation unit 100 may include a rotating member 110 that rotates around a central shaft 310 formed in the shifting housing 300 and a knob 120 that is coupled to the rotating member 110 and serves as a handle. You can.

The rotating member 110 may be formed with a hollow 111 into which the central shaft 310 is inserted. For smooth rotation of the shift operation unit 100, a bearing, bushing, etc. is installed between the central shaft 310 and the hollow 111. This can be provided.

The shift control unit 100 may rotate around the rotation axis Ax1 when an external force is applied by the driver. In an embodiment of the present invention, the shift control unit 100 rotates when an external force is applied from the initial position. , the case where the shift control unit 100 returns to its initial position when the external force applied to it is removed will be described as an example.

At this time, the initial position refers to the position before an external force is applied to the shift control unit 100, and the position returned when the external force applied to the shift control unit 100 is removed according to the rotation direction of the shift control unit 100. If the positions are the same, it may have one initial position, but is not limited to this, and the returned position when the external force applied to the shift control unit 100 is removed is different depending on the rotation direction of the shift control unit 100. can have more than one initial position.

Hereinafter, in an embodiment of the present invention, a case where the position to which the shift control unit 100 returns when the external force applied to the shift control unit 100 is removed will be described as an example, and the initial position of the shift control unit 100 The position will be referred to as the NULL stage.

That is, when an external force is applied to the shift control unit 100, the shift control unit 100 is rotated to select one of a plurality of shift ranges from the NULL range, and when the external force is removed, it can return to the NULL range. , In this case, the NULL stage can be understood as corresponding to the shift stage selected before the return of the shift operation unit 100.

When the shift operation unit 100 is rotated from the NULL range to the first direction, the shift range can be selected in the order of Nd and D according to the rotation angle. Conversely, when the shift range is rotated from the NULL range to the second direction, the shift range can be selected according to the rotation angle. Accordingly, the shift gear can be selected in the order of Nr and R. Hereinafter, in the embodiment of the present invention, the case where the first direction is clockwise and the second direction is counterclockwise will be described as an example. .

At this time, the Nd and Nr stages can be understood as the N stage, and when the external force applied to the shift operation unit 100 is removed and the shift operation unit 100 returns to the NULL range, shifting is performed according to the above-described shift stage selection order. This is to enable selection.

For example, after the shift control unit 100 is rotated in the first direction by an external force and D range is selected, the external force is removed and the shift control unit 100 returns to the NULL range, and the driver moves the shift control unit 100 ) can be rotated in the second direction to select shift stages in the order of Nr and R stages.

On the contrary, after the shift control unit 100 is rotated in the second direction by an external force and the R range is selected, the external force is removed and the shift control unit 100 returns to the NULL range, and the driver moves the shift control unit 100 By rotating in the first direction, it is possible to select shift stages in the order of Nd and D.

In other words, the Nd and D stages can be understood as having the same rotation direction of the shift operation unit 100 but different rotation angles. Similarly, the Nr and R stages can be understood as having the same rotation direction of the shift operation unit 100, but the rotation angle is different. It can be understood that the angle is different.

The shift guide unit 200 provides a feeling of operation to the driver when the shift control unit 100 is rotated by an external force, and when the external force applied to the shift control unit 100 is removed, the shift control unit 100 moves to the NULL position. It can play a role in guiding the return to .

Figure 5 is a cross-sectional view showing a shift guide unit according to an embodiment of the present invention, and Figure 6 is a cross-sectional view showing a detent groove in which a single detent groove is formed according to an embodiment of the present invention.

Referring to FIGS. 5 and 6 , the shift guide unit 200 according to an embodiment of the present invention may include a detent groove 210, a detent member 220, and an elastic member 230.

The detent groove 210 may be formed to extend along the rotation direction of the shift operation unit 100, and in an embodiment of the present invention, the detent groove 210 is formed integrally with the rotation member 110 to form a shift operation unit ( 100) will be explained as an example.

At this time, the fact that the detent groove 210 rotates integrally with the shift operation unit 100 may include not only a case where it is manufactured integrally, but also a case where it is manufactured separately and coupled to each other so that there is no relative movement.

The detent member 220 is positioned to remain in contact with the detent groove 210 by the elastic force of the elastic member 230, and can serve to provide a feeling of operation to the driver when the shift operation unit 100 rotates. there is.

The detent member 220 may be coupled to the other end of the elastic member 230, one end of which is fixed to the shift housing 300, and the detent member 220 is composed of a roller for smooth rotation of the shift operation unit 100. It can be.

That is, the elastic strain rate of the elastic member 230 varies depending on the profile of the surface in contact with the detent member 220 in the detent groove 210, and the driver has an elastic restoring force according to the elastic strain rate of the elastic member 230. When the elastic deformation rate changes because the shift operation unit 100 is rotated by applying more force, the force required from the driver also changes, so that a feeling of operation may be generated when the driver rotates the shift operation unit 100.

In the embodiment of the present invention, a case where the position of the detent member 220 is fixed and the detent groove 210 rotates integrally with the shift operation unit 100 is described as an example, but the present invention is not limited to this. The opposite case is also possible.

In addition, in the embodiment of the present invention, the case where a leaf spring is used as the elastic member 230 will be described as an example, but the case is not limited to this, and the elastic deformation rate may vary when the shift operation unit 100 rotates. Various types of springs can be used.

The detent groove 210 may include at least one detent groove 211, and in an embodiment of the present invention, the detent groove 210 includes a single detent groove 211 corresponding to the NULL end. A case will be described as an example, but it is not limited to this. In the case where the shift control unit 100 has different positions depending on the shift stage selected by rotation of the shift control unit 100, the detent groove 210 ), a plurality of detent grooves corresponding to each of a plurality of shift stages selectable by rotation of the shift operation unit 100 may be formed to be arranged along the rotation direction of the shift operation unit 100.

When no external force is applied, at least part of the detent member 220 is inserted into the detent groove 211 and positioned, and the detent member 220 is positioned in the detent groove (211) by the elastic force of the elastic member 230. Since it remains inserted in 211), the shift control unit 100 does not rotate and maintains the NULL position before an external force is applied.

In addition, the detent groove 210 may be formed such that the first contact surface 212 and the second contact surface 213 extend from the detent groove 211 to both sides along the rotation direction of the shift operation unit 100, respectively, The first contact surface 212 is a surface that contacts the detent member 220 when the shift control unit 100 is rotated from the NULL end to the first direction, and the second contact surface 213 is a surface that contacts the detent member 220 when the shift control unit 100 is rotated from the NULL end. When rotated in the second direction, it can be understood as a surface that contacts the detent member 220.

The first contact surface 212 and the second contact surface 213 may be formed to increase the elastic restoring force by increasing the elastic strain rate of the elastic member 230 toward the end extending from the detent groove 211.

For example, when the detent groove 210 is formed integrally with the shift operation unit 100, the first contact surface 212 and the second contact surface 213 of the detent groove 210 are the detent groove 211. It can be formed so that the distance to the rotation axis (Ax1) of the shift operation unit 100 increases as it extends from the end.

Therefore, when an external force is applied to the shift control unit 100 and the shift control unit 100 is rotated from the NULL end to the first or second direction, the elastic member 230 increases as the rotation angle of the shift control unit 100 increases. Since the elastic strain rate increases and the elastic restoring force increases, the force required from the driver to rotate the shift operation unit 100 gradually increases, so that the driver cannot recognize the shift range selected by rotating the shift operation unit 100. It becomes possible.

Meanwhile, each of the first contact surface 212 and the second contact surface 213 has at least one step portion 212a, 213a in a direction such that the elastic restoring force of the elastic member 230 is increased between the detent groove 211 and the end portion. ) may be formed, and at least one step portion (212a, 213a) may be formed at a position where a shift range is selected by rotation of the shift operation unit 100.

In the embodiment of the present invention, an example is given where one step portion (212a, 213a) is formed on the first contact surface 212 and the second contact surface 213, which is two in each direction from the NULL end. This is to enable selection of shift stages, and the number of step portions may vary depending on the shift ranges that can be selected as the shift operation unit 100 rotates.

For example, when the shift control unit 100 is rotated in the first direction, the step portion 212a of the first contact surface 212 is a position corresponding to the Nd range, and in order for the driver to select the D range, a detent member ( It is necessary to apply additional force so that 220) goes beyond the step portion 212a of the first contact surface 212.

In addition, when the shift operation unit 100 is rotated in the second direction, the step portion 213a of the second contact surface 213 is a position corresponding to the Nr range, and in order for the driver to select the R range, the detent member 220 It is necessary to apply additional force so that it goes over the step portion 213a of the second contact surface 213.

As described above, when the shift operation unit 100 is rotated by an external force while the detent member 220 is inserted into the detent groove 211, any of the first contact surface 212 and the second contact surface 213 As a result, the elastic restoring force of the elastic member 230 increases, and when the external force applied to the shift operating unit 100 is removed, the shifting operating unit 100 returns to the initial position due to the elastic restoring force of the elastic member 230. Thus, the detent member 220 is inserted into and positioned in the detent groove 211.

For example, as shown in FIG. 7, when the external force is removed while the shift control unit 100 is rotated in the first direction by an external force, the shift control unit 100 moves to the initial position due to the elastic restoring force of the elastic member 230. is returned to and the detent member 220 is inserted into and positioned in the detent groove 211, and similarly, as shown in FIG. 8, while the shift operation unit 100 is rotated in the second direction by an external force, the external force is Even when removed, the shift operation unit 100 returns to its initial position due to the elastic restoring force of the elastic member 230, so that the detent member 220 can be inserted into the detent groove 211 and positioned.

Figure 9 is a schematic diagram showing a detent groove according to an embodiment of the present invention.

Referring to FIG. 9, the detent groove 211 according to an embodiment of the present invention has a first surface (211b) at least partially formed to be convex toward the opening (211a) that enables insertion of the detent member 220. ), a second surface 211c formed on one end of the first surface 211b in the rotation direction of the shift operation unit 100, and a second surface formed on the other end of the first surface 211b in the rotation direction of the shift operation unit 100. It may include three sides (211d).

In an embodiment of the present invention, the second side 211c is located counterclockwise with respect to the first side 211b, and the third side 211d is located clockwise with respect to the first side 211b. Let's explain the case with an example.

At this time, the second surface 211c and the third surface 211d are the first surface so that the detent member 220 is inserted into the detent groove 211 through the opening 211a of the detent groove 211. It may be formed to be inclined so that the gap between the ends close to the opening 211a is larger than the gap between the ends close to the opening 211b.

The first surface 211b is a detent that is moved to be inserted into the detent groove 211 along either the second surface 211c or the third surface 211d when the shift operation unit 100 returns to the initial position. It may serve to reduce noise generated when the member 220 collides with the other of the second surface 211c and the third surface 211d.

Figure 10 is a schematic diagram showing the process of absorbing the impact of the detent member according to the shape of the detent groove according to an embodiment of the present invention. Figure 10 shows the initial position after the shift operation unit 100 is rotated in the first direction. This is an example of a case where it returns to .

Referring to FIG. 10, when the detent member 220 includes a first side (211b), a second side (211c), and a third side (211d), a detent groove (211d) is formed along the second side (211c). The detent member 220, which is moved to be inserted into 211, collides with the first surface 211b before colliding with the third surface 211d, so that the shock can be primarily absorbed, and then the third surface (211d) Since the impact is absorbed secondarily by colliding with 211d), the impact is relatively reduced compared to the case where the detent member 220 directly collides with the third surface 211d, thereby reducing noise.

That is, the detent groove 211 is generally formed to have an approximately “V” shape in which the end of the second surface 211c, which is far from the opening 211a, and the end of the third surface 211d are connected to each other. In this case, the detent member 220, which is moved to be inserted into the detent groove 211 along the second surface 211c, immediately collides with the third surface 211d, so the detent groove 211 is on the first surface. In the case where (211b) is not included, there is no process of absorbing the impact of the detent member 220 before the detent member 220 collides with the third surface 211d, so noise is relatively increased.

At this time, FIG. 10 illustrates an example where the detent member 220 is moved to be inserted into the detent groove 211 along the second surface 211c, but the present invention is not limited to this and vice versa. possible.

Meanwhile, the detent groove 210 may be additionally formed with a hole 214 that enables elastic deformation of the detent groove 211, and the hole 214 has the shape of the detent groove 211 or a detent member. Depending on the shape of 220, it may serve to prevent clearance from occurring between at least one of the second surface 211c and the third surface 211d and the detent member 220.

That is, when the first surface 211b is omitted in the detent groove 211 and the detent groove 211 consists of the second surface 211c and the third surface 211d, the detent member 220 is When inserted and positioned in the detent groove 211, the second surface 211c and the third surface 211d are positioned on both sides of the detent member 220 in the rotational direction of the shift operation unit 100 to contact each other. Movement of the turn member 220 does not occur, but when the first surface 211b is formed, at least one of the second surface 211c and the third surface 211d due to the convex shape of the first surface 211b. A gap may occur between one and the detent member 220, and in this case, there is a possibility that movement of the detent member 220 may occur within the detent groove 211.

As such, when movement of the detent member 220 occurs within the detent groove 211, the operating feel of the shift operation unit 100 may be reduced and unnecessary noise may be generated, so in the embodiment of the present invention, In the detent groove 210, a hole 214 is additionally formed near the detent groove 211 to prevent movement of the detent member 220 even when the first surface 211b of a convex shape is formed. .

In other words, because the elastic force of the elastic member 230 acts on the detent member 220, the elastic force is transmitted to the first surface 211b through the detent member 220, and in this case, the detent groove as shown in FIG. 11 Compared to the state before the detent member 220 is inserted into (211) (dotted line in FIG. 11), when the detent member 220 is inserted and positioned in the detent groove 211, the detent is formed due to the hole 214. The detent groove 211 may be elastically deformed so that the first surface 211b is pushed in the direction of the hole 214, which causes the detent member 220 to move in the direction of the hole 214 and at the same time move the second surface 211c. ) and the third surface 211d can each be in contact with both sides of the detent member 220, so due to the first surface 211a having a convex shape, one of the second surface 211c and the third surface 211d Unnecessary clearance occurs between at least one of the detent members 220 and movement of the detent member 220 within the detent groove 211 can be prevented.

At this time, the section A1 corresponding to the first side 211b of the hole 214 has the detent groove 211 and the section A2 corresponding to the second side 211c and the third side 211d. It may be formed to have a relatively short gap, which is to enable the detent groove 211 to be more easily elastically deformed by the force applied to the first surface 211b by the detent member 220. will be.

The gap between the detent groove 211 and the hole 214 may be understood as the distance from any point on the surfaces 211b, 211c, and 211d forming the detent groove 211 to the hole 214 in the normal direction. You can.

In the embodiment of the present invention, the case where the hole 214 is formed to prevent the occurrence of clearance due to the convex shape of the first surface 211b is described as an example, but this is only an example to aid understanding of the present invention. As such, even if the first surface 211b of a convex shape is formed, the second surface 211c and the third surface 211d are each detent member (211c) depending on the shape of the detent member 220 or the detent groove 211. When contacting both sides of 220, the hole 214 may be omitted.

Meanwhile, in the embodiment of the present invention, the hole 214 will be described as an example where the hole 214 is formed to have a size corresponding to the size of the detent groove 211 in the rotation direction of the shift operation unit 100, which is This is to enable easy elastic deformation of the detent groove 211, but the present invention is not limited to this, and the size of the hole 211 may vary depending on the elastic deformation rate required for the detent groove 211.

At this time, the size of the detent groove 211 can be understood as the gap between the end of the second surface 211c and the end of the third surface 211d close to the opening 211a.

In the above-described embodiment, for example, a single detent groove 211 is formed in the detent groove 210 so that the shift control unit 100 returns to the NULL range when the external force is removed. Although the description is given, it is not limited to this, and the detent groove 210 has a plurality of detent grooves corresponding to each of a plurality of shift stages selectable by rotation of the shift operation unit 100 in the rotation direction of the shift operation unit 100. may be formed to be arranged, and when the detent groove 210 includes a plurality of detent grooves, each of the plurality of detent grooves has the same configuration as the above-described detent groove 211 to form a detent member. Noise generated when 220 is inserted and positioned in any one of the plurality of detent grooves can be reduced.

Additionally, when a plurality of detent grooves are formed in the detent groove 210, the above-described hole 214 may be formed individually for each of the plurality of detent grooves.

That is, when a plurality of detent grooves 215 and 216 are formed in the detent groove 210 as shown in FIG. 12, a plurality of holes 214a and 214b corresponding to each of the plurality of detent grooves 215 and 216. can be formed, and among the plurality of holes 214a and 214b, a detent groove into which the detent member 220 is inserted and positioned is formed by a hole corresponding to the detent groove into which the detent member 220 is inserted and positioned. Can be elastically deformed.

At this time, Figure 12 is an example of a case where a plurality of detent grooves 215, 216 corresponding to the Nr and Nd ends are formed instead of the NULL end, and each of the plurality of detent grooves 215, 216 is the same as the above-described embodiment. Similarly, the first surfaces 215b and 216b are formed to be at least partially convex toward the openings 215a and 216a through which the detent member 220 can be inserted, and the first surface is formed in the rotation direction of the shift operation unit 100. A second surface (215c, 216c) formed at one end of (215b, 216b), and a third surface (215d, 216d) formed at the other end of the first surface (215b, 216b) in the rotation direction of the shift operation unit 100. It may include, and the detent member 220 collides with the first surface (215b, 216b) and the shock is primarily absorbed, and any of the second surface (215c, 216c) and the third surface (215d, 216d) If it collides with one, the shock can be absorbed secondarily and the noise can be reduced.

In addition, in Figure 12, the case where the holes 214a and 214b corresponding to each of the plurality of detent grooves 215 and 216 are individually formed is explained as an example, but the case is not limited to this, and the plurality of detent grooves (215, 216) are individually formed. The holes corresponding to 215 and 216 may be formed as a single hole, and if no gap occurs when the detent member 220 is inserted and positioned in each of the plurality of detent grooves 215 and 216, the holes 214a, 214b) may be omitted.

The above-described embodiment illustrates a dial-type shifting device in which the driver holds the shift control unit 100 and rotates it around the rotation axis Ax1, but the present invention is not limited thereto, and the driver holds the shift control unit 100 and rotates it around the rotation axis Ax1. It can be similarly applied to a joystick type that moves forward and backward or left and right.

FIG. 13 is a side view showing a vehicle shifting device according to another embodiment of the present invention, and FIG. 14 is a cross-sectional view showing a vehicle shifting device according to another embodiment of the present invention.

Referring to FIGS. 13 and 14 , a vehicle transmission device 1 according to another embodiment of the present invention may include a shift operation unit 400 and a shift guide unit 500 similar to the above-described embodiments.

In another embodiment of the present invention, the shift operation unit 400 and the shift guide unit 500 differ from the above-described embodiment only in the dial type and joystick type. ) can play the same role.

In another embodiment of the present invention, the shift operation unit 400 may include a rod 410 pivoting on the rotation axis Ax2 and a knob 420 coupled to one end of the rod 410, and the driver may use the knob 420 By holding and moving in the front-back or left-right direction, the rod 410 is pivoted around a rotation axis (Ax2) perpendicular to the longitudinal direction of the rod 410, so that the shift range can be selected.

The shift guide unit 500 may include a detent groove 510, a detent member 520, and an elastic member 530.

The detent groove 510 may be formed by inserting at least a portion of the detent member 520 into the NULL end position corresponding to the initial position of the shift operation unit 400, and the detent groove 511 may be formed. The member 520 can be maintained in contact with the detent groove 510 by the elastic force of the elastic member 530.

In another embodiment of the present invention, a case where a coil spring compressed or released by a detent member 520 composed of a bullet that moves linearly is used as the elastic member 530 will be described as an example, but the present invention is not limited to this. Instead, various types of springs whose elastic strain rate varies depending on the movement of the detent member 520 may be used as the elastic member 530.

The detent groove 510 may have a first contact surface 512 and a second contact surface 513 formed on both sides along the rotation direction of the shift operation unit 400 with respect to the detent groove 511.

At this time, the first contact surface 512 is the surface with which the detent member 520 is contacted when selecting the Nd or D stage, and the second contact surface 513 is the surface with which the detent member 520 is contacted when the Nr or R stage is selected. It can be understood as

The first contact surface 512 and the second contact surface 513 are formed to be closer to the rotation axis Ax2 of the shift operation unit 400 so that the elastic strain rate of the elastic member 530 increases as the distance from the detent groove 511 increases. The first contact surface 512 and the second contact surface 513 may be formed with step portions 512a and 513a for the Nr and Nd ends, respectively.

The elastic strain rate of the elastic member 530 increases as the first contact surface 512 and the second contact surface 513 move toward the end farther from the detent groove 511, thereby increasing the elastic restoring force, and this causes the shift operation unit 400 ) When the external force applied to the shift control unit 400 is removed, the shift control unit 400 may return to the NULL position where the detent member 520 is inserted into the detent groove 511 by elastic restoring force.

Figure 15 is a schematic diagram showing a detent groove according to another embodiment of the present invention.

Referring to FIG. 15, the detent groove 511 according to another embodiment of the present invention has a first surface 511b formed to have at least a portion of the detent groove 511 having a convex shape toward the opening 511a, similar to the above-described embodiment. , a second surface 511c formed on one end of the first surface 511b in the rotation direction of the shift operation unit 400, and a third surface formed on the other end of the first surface 511b in the rotation direction of the shift operation unit 400. It may include a surface 511d, in which case the detent member 520, which is moved to be inserted into the detent groove 511 along any one of the second surface 511c and the third surface 511d, is the first After the impact is primarily absorbed by colliding with the surface 511b, the impact is absorbed secondarily by colliding with the other one of the second surface 511c and the third surface 511d, so noise can be relatively reduced. There will be.

In addition, in another embodiment of the present invention, similar to the above-described embodiment, the detent groove 510 has a hole for elastic deformation of the detent groove 511 near the detent groove 511. (514) may be formed, and as a result, when at least a portion of the detent member 520 is inserted and positioned in the detent groove 511, the first surface 511b is formed into a hole due to the elastic force of the elastic member 530. The detent groove 511 is elastically deformed to be pushed in the (514) direction, and as a result, the detent member 520 moves in the direction of the hole 514, and the second surface 511c and the third surface 511d are respectively Because the first surface 511b has a convex shape because it can be contacted with both sides of the detent member 520, a space between the detent member 520 and at least one of the second surface 511c and the third surface 511d is formed. Unnecessary clearance is prevented from occurring, and in this case, movement of the detent member 520 within the detent groove 511 can be prevented, thereby reducing the operating feel of the shift operation unit 400 or making unnecessary noise. What happens can be prevented.

Meanwhile, in another embodiment of the present invention, the case where a single detent groove 511 is formed is described as an example, but the present invention is not limited to this, and a plurality of detent grooves may be formed in the detent groove 510. In this case, the hole 514 may be formed individually for each of the plurality of detent grooves.

That is, when a plurality of detent grooves 515 and 516 are formed in the detent groove 510 as shown in FIG. 16, a plurality of holes 514a and 514b corresponding to each of the plurality of detent grooves 515 and 516 are formed. can be formed, and among the plurality of holes 514a and 514b, a detent groove into which the detent member 520 is inserted and positioned is formed by a hole corresponding to the detent groove into which the detent member 520 is inserted and positioned. Can be elastically deformed.

At this time, Figure 16 is an example of a case where a plurality of detent grooves 515, 516 corresponding to the Nr and Nd ends are formed instead of the NULL end, and each of the plurality of detent grooves 515, 516 is the same as the above-described embodiment. Similarly, first surfaces 515b and 516b at least partially convexly formed toward the openings 515a and 516a through which the detent member 520 can be inserted, and a first surface in the rotation direction of the shift operation unit 400. A second surface (515c, 516c) formed at one end of (515b, 516b), and a third surface (515d, 516d) formed at the other end of the first surface (515b, 516b) in the rotation direction of the shift operation unit 400. It may include, and the detent member 520 collides with the first surface (515b, 516b) and the shock is primarily absorbed, and any of the second surface (515c, 516c) and the third surface (515d, 516d) If it collides with one, the shock can be absorbed secondarily and the noise can be reduced.

In addition, in Figure 16, the case where the holes 514a and 514b corresponding to each of the plurality of detent grooves 515 and 516 are individually formed is explained as an example, but the case is not limited to this, and the plurality of detent grooves (515, 516) are individually formed. The holes corresponding to 515 and 516 may be formed as a single hole, and if no clearance occurs when the detent member 520 is inserted and positioned in each of the plurality of detent grooves 515 and 516, the hole 514a, 514b) may be omitted.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

100, 400: Shift control unit
200, 500: Shift guide unit
210, 510: Detent groove
211, 215, 216, 511, 515, 516: Detent Home
211a, 215a, 216a, 511a, 515a, 516a: opening
211b, 215b, 216b, 511b, 515b, 516b: first side
211c, 215c, 216c, 511c, 515c, 516c: second side
211d, 215d, 216d, 511d, 515d, 516d: side 3
220, 520:. absence of defects
230, 530: Elastic member
300: Shift housing
310: central shaft

Claims (11)

a shift control unit that rotates around a rotation axis to select one of a plurality of shift stages; and
It includes a shift guide portion that generates a feeling of operation when the shift control portion is rotated,
The shift guide part,
A detent groove in which at least one detent groove is formed; and
A detent member is inserted into and positioned in the at least one detent groove through an opening of the at least one detent groove when the shift operation unit rotates,
The at least one defect home is,
a first surface at least partially convex toward the opening;
a second surface formed at one end of the first surface in the rotation direction of the shift operation unit; and
It includes a third surface formed at the other end of the first surface in the rotation direction of the shift operation unit,
The detent groove is,
A transmission device for a vehicle including at least one hole that allows elastic deformation of the at least one detent groove. According to claim 1,
When the shift operation unit rotates, the detent member moves to be inserted into the at least one detent groove along any one of the second surface and the third surface,
A transmission device for a vehicle that collides with the first surface before colliding with the other of the second surface and the third surface. According to claim 1,
When the shift operation unit rotates, the detent member moves to be inserted into the at least one detent groove along any one of the second surface and the third surface,
A transmission device for a vehicle in which primary shock absorption is achieved by colliding with the first surface, and secondary shock absorption is achieved by colliding with the other one of the second surface and the third surface. According to claim 1,
The shift control unit,
When the external force applied to select the gear shift is removed, it returns to the initial position.
The at least one defect home is,
A transmission device for a vehicle including a detent groove corresponding to the initial position. According to claim 4,
It further includes an elastic member that generates elastic force so that the detent member contacts the detent groove,
The shift control unit,
A transmission device for a vehicle that returns to the initial position when the external force is removed by the elastic force of the elastic member. delete According to claim 1,
The at least one hole is,
A vehicle transmission device formed to have a size corresponding to the size of the at least one detent groove in the rotation direction of the shift operation unit. According to claim 1,
It further includes an elastic member that generates elastic force so that the detent member contacts the detent groove,
The at least one hole is,
When the detent member is inserted into and positioned in the at least one detent groove, the at least one detent groove is elastically deformed by the elastic force transmitted to the first surface through the detent member. Device. According to claim 1,
The at least one defect home is,
A transmission device for a vehicle in which the first surface is elastically deformed in a direction toward the at least one hole so that the second surface and the third surface contact both sides of the detent member, respectively. According to claim 1,
The at least one hole is,
A transmission device for a vehicle in which a portion corresponding to the first surface has a shorter distance from the at least one detent groove than a portion corresponding to the second surface and the third surface. a shift control unit that rotates around a rotation axis to select one of a plurality of shift stages; and
It includes a shift guide portion that generates a feeling of operation when the shift control portion is rotated,
The shift guide unit,
A detent groove in which at least one detent groove is formed; and
A detent member is inserted into and positioned in the at least one detent groove through an opening of the at least one detent groove when the shift operation unit rotates,
The at least one defect home is,
a first surface at least partially convex toward the opening;
a second surface formed at one end of the first surface in the rotation direction of the shift operation unit; and
It includes a third surface formed at the other end of the first surface in the rotation direction of the shift operation unit,
The second side and the third side are,
It is formed to be inclined so that the gap between the ends close to the opening is larger than the gap between the ends close to the first surface,
When the shift control unit is rotated in the first direction, the detent member primarily collides with the first surface and then secondarily collides with the third surface, and when the shift control unit is rotated in the second direction, the A vehicle transmission device in which the detent member primarily collides with the first surface and then secondarily collides with the second surface.

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