KR101735469B1 - Shifting device of transmission for vehicle - Google Patents

Shifting device of transmission for vehicle Download PDF

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Publication number
KR101735469B1
KR101735469B1 KR1020150165428A KR20150165428A KR101735469B1 KR 101735469 B1 KR101735469 B1 KR 101735469B1 KR 1020150165428 A KR1020150165428 A KR 1020150165428A KR 20150165428 A KR20150165428 A KR 20150165428A KR 101735469 B1 KR101735469 B1 KR 101735469B1
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KR
South Korea
Prior art keywords
finger
control
lug
groove
control finger
Prior art date
Application number
KR1020150165428A
Other languages
Korean (ko)
Inventor
이영구
Original Assignee
현대다이모스(주)
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Filing date
Publication date
Application filed by 현대다이모스(주) filed Critical 현대다이모스(주)
Priority to KR1020150165428A priority Critical patent/KR101735469B1/en
Application granted granted Critical
Publication of KR101735469B1 publication Critical patent/KR101735469B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3083—Shift finger arrangements, e.g. shape or attachment of shift fingers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3086—Shift head arrangements, e.g. forms or arrangements of shift heads for preselection or shifting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3089—Spring assisted shift, e.g. springs for accumulating energy of shift movement and release it when clutch teeth are aligned

Abstract

The control finger 30 is elastically supported by a spring 40 so that the control finger 30 is brought into close contact with the lug groove 51 of the shift lug 50 to reduce the gap do. In addition, a seating groove 52 in which the end edge of the control finger 30 is seated is formed on both sides of the lug groove 51. Therefore, the engagement state of the control finger 30 is improved, so that the shift operation and the gear position are maintained more accurately and stably.

Description

Technical Field [0001] The present invention relates to a shifting device of a transmission for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift operating device for a vehicle transmission, and more particularly, to a shift operating device for a vehicle transmission including a control finger and a shift lug for pushing a shift rail.

The transmission of the vehicle is a device that appropriately varies the torque and the number of revolutions of the engine to meet the driving conditions.

Manual transmission type transmissions (general manual transmission, automatic manual transmission (AMT), dual clutch transmission (DCT), etc.) use a synchromesh mechanism to transmit the power by connecting a single gear to be shifted.

The synchromesh mechanism is operated by moving the shift fork to the sleeve. The shift fork is mounted on the shift rail, and a shift lug is mounted on the shift rail to move the shift rail back and forth.

The shift lug is a member having a latching jaw in the forward and backward directions, and a control finger is inserted into a lug groove formed between the front and rear latching jaws. The control finger is mounted on the control shaft, and the control shaft is pivoted by the actuator. Therefore, the operation direction of the control finger can be controlled according to the operating direction of the actuator, so that the shift lug can be pushed or pulled in the forward and backward directions, and the synchromesh mechanism can be operated through the shift rail and the shift fork.

The control shaft 1, the control finger 2 and the shift lug 3 are shown in Fig.

The control finger 2 is inserted into the lug groove 3a of the shift lug 3. The control finger 2 pivots against the wall surface of the lug groove 3a while rotating in the same direction in accordance with the rotation direction of the control shaft 1. [

As shown in Fig. 2, the shift lug 3 is linearly moved so that the shift rail is pushed to operate the synchromesh mechanism through the shift fork.

However, in the conventional structure as described above, when the control finger 2 keeps pushing or pushing the shift lug 3, the line contact is made so that the contact area is small so that the contact between the control finger 2 and the shift lug 3 Stress concentration is performed, and durability is deteriorated due to fatigue accumulation.

The clearance between the control finger 2 and the shift lug 3 is large and the contact area of the control finger 2 is unstable due to the small contact area as described above so that the operation of the shift lug 3 by the control finger 2 And the state in which the operation is performed can not be stably maintained. That is, the shifting operation and the operation of the shifted gear can not be accurately and stably maintained.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a vehicle transmission that is capable of accurately and stably performing a shift operation and a gear position retention by increasing a contact area between a control finger and a shift lug, And an object of the present invention is to provide a shift operating device of the present invention.

According to another aspect of the present invention, there is provided a control apparatus including a control shaft rotatably operated by an actuator, a finger socket mounted on an outer circumferential surface of the control shaft, a control finger having a body inserted into an insertion groove of the finger socket, Wherein the control finger is elastically supported by a spring provided in the insertion groove of the finger socket so that the head of the control finger is brought into contact with the inner surface of the lug groove .

The control finger is in surface contact with the end surface of the head and the inner horizontal surface of the lug groove in the neutral state.

A seating groove having the same angle as that of the end edge portion of the control finger head is formed on both sides of the lug groove entrance of the shift lug so that when the control finger is rotated during shifting, the end edge portion is seated in the seating groove,

One side of the opposite end edge portion of the end edge portion seated in the seating groove is in surface contact with the inner horizontal surface of the shift lug lug groove.

A spring seat is inserted into the control shaft radially inwardly, and the spring is embedded in the insertion groove of the spring seat.

The insertion groove of the spring seat has the same cross-sectional area as the insertion groove of the finger socket.

The control shaft may be a hollow shaft.

According to the present invention as described above, the control finger is elastically supported on the spring, so that the control finger stably contacts the lug groove.

In addition, the contact area between the control finger and the shift lug is increased by forming a seating groove in which both side portions of the lug groove are in surface contact with the head edge of the control finger when shifting.

Therefore, the engagement state of the control finger is improved, so that the shift operation and the gear position can be maintained accurately and stably.

Also, since the contact area between the control finger and the shift lug is increased, the stress concentration phenomenon does not occur and fatigue is not accumulated in the control finger and the shift lug, thereby improving the durability of the control finger and the shift lug.

1 is a diagram showing a state in which a control finger of a conventional shift operating device and a shift lug are engaged (a neutral position)
2 is a view showing a state in which a conventional shift operating device is shifted in one direction.
3 is a view showing the structure of the present invention in a locked state (neutral state) between a control finger and a shift lug of a shift operating device according to the present invention.
4 is a view showing a state in which the shift operating device according to the present invention is shifted in one direction.
5 is a view showing a state in which the shift operating device according to the present invention is shifted in the other direction.
6 is a view showing a modified embodiment of the shift operating device according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The thicknesses of the lines and the sizes of the components shown in the accompanying drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, definitions of these terms should be made based on the contents throughout this specification.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a view showing the configuration of the present invention in a locked state (neutral state) between a control finger and a shift lug of the shift operating device according to the present invention.

As shown in Fig. 3, a finger socket 20 is fixedly mounted on the outer periphery of the control shaft 10. As shown in Fig. The finger socket (20) is mounted in a shape protruding radially outward of the control shaft (10). Inside the finger socket 20, an insertion groove 21 for inserting the control finger 30 is formed.

The control finger 30 has a body 31 inserted into the insertion groove 21 of the finger socket 20 and a body 31 formed at the end of the body 31 and inserted into the lug groove 51 of the shift lug 50 And a head 32.

The body 31 of the control finger 30 is inserted into the insertion groove 21 of the finger socket 20 and is elastically supported by the spring 40 inserted in the insertion groove 21.

The control finger 30 is linearly moved or projected from the insertion groove 21 by the action of the external force acting in the compression direction of the spring 40 and the elastic reaction force of the spring 40. [

A lug groove 51 is formed on the inner side of the shift lug 50 corresponding to the control finger 30. The lug grooves 51 are formed by an inner horizontal plane and both side wall planes thereof.

A seating groove 52 in which the end edge of the control finger 30 head is seated when the control finger 30 is shifted on both sides of the inlet of the lug groove 51 .

The seating groove 52 is composed of two planes connected at the same angle as the end edge of the control finger 30 head 32.

The operation and effect of the present invention will now be described.

3, the control finger 30 is resiliently supported by the spring 40 and pushed out of the insertion groove 21. That is, the control finger 30 is pushed to the inside of the lug groove 51 of the shift lug 50 by the spring 40.

Therefore, the end face (plane) of the head 32 of the control finger 30 is in surface contact with the inner horizontal surface of the lug groove 51, so that there is no gap between them.

Therefore, the engagement state of the control finger 30 is stably maintained in the neutral state.

The control shaft 10 can be rotated in both directions by an actuator (not shown).

Figs. 4 and 5 show an operating state in which the control shaft 10 is rotated in opposite directions to each other.

As shown in the drawing, when the control shaft 10 is rotated in one direction or the other direction, the finger socket 20 and the control finger 30 are rotated in the same direction.

The head 32 of the control finger 30 pushes the inner wall surface of the lug groove 51 of the shift lug 50 by the rotation of the control finger 30 so that the shift lug 50 linearly moves in the corresponding direction, .

At this time, the end edge portion of the head 32 of the control finger 30 is seated in the seating groove 52 formed on one wall surface of the lug groove 51. Since the end edge portion of the head 32 and the seating groove 52 are formed at the same angle, they are in mutual surface contact.

Further, since the control finger 30 is pushed toward the lug groove 51 by the spring 40, the surface contact state of the end edge portion of the head 32 and the seating groove 52 is more firmly maintained.

At this time, one of the two surfaces constituting the other end edge portion of the head 32 of the control finger 30 is in surface contact with the inner horizontal surface of the lug groove 51.

In this manner, both side end edges of the head 32 of the control finger 30 are in surface contact with the inner surface of the lug groove 51, thereby reducing the clearance between the control finger 30 and the shift lug 50 and increasing the contact area So that the engaging state of the control finger 30 becomes extremely strong. This operation is the same regardless of the direction in which the control shaft 10 is turned.

Therefore, the shifting operation by the rotation of the control finger 30 is stably performed, so that erroneous operation is not caused, and the shifted gear stage operated after the shifting operation can be stably maintained.

Also, the contact between the inner side surface of the lug groove 51 and the head 32 of the control finger 30 is not in line contact but is in surface contact, thereby preventing stress concentration. Therefore, fatigue accumulation due to stress concentration does not occur and durability of the control finger 30 and the shift lug 50 is improved.

6, in order to form the depth of the insertion groove 21 deeper, a spring seat 11 (see FIG. 6) in which an insertion groove 11a having the same cross sectional area as the insertion groove 21 of the finger socket 20 is formed, Can be inserted into the inside of the control shaft 10. That is, the spring seat 11 is installed on the outer circumferential surface of the control shaft 10 so as to protrude radially inward of the control shaft 10.

The above-described shifting sheet 11 is installed more easily than when the control shaft 10 is a hollow shaft.

When the spring seat 11 is provided in the control shaft 10 as described above, the spring 40 is installed in the insertion groove 11a of the spring seat 11 and the spring 40 is provided with the control finger 30 Thereby supporting the lower end of the body 31.

The entire insertion slot 21 of the finger socket 20 acts as a guide groove for guiding the movement of the control finger 30 to the body 31 so that the control finger 30 can operate in a more stable state.

Since the length of the insertion groove 21 is extended, the operation distance (stroke) of the control finger 30 can be increased by extending the length of the body 31 of the control finger 30, 30 and the shift lug 50 are improved.

The increase in the length of the guide and the increase in stroke are caused by the fact that the insert groove 21 of the finger socket 20 and the insert groove 11a of the spring seat 11 are formed to have the same cross- The lower end of the spring seat 11 can be lowered to the inside of the insertion groove 11a of the spring seat 11,

Also, even if the rotation amount of the control shaft 10 is reduced for the same reason, the shift lug 50 can be moved sufficiently as necessary, thereby reducing the power consumption of the actuator.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.

10: Control shaft 11: Spring seat
11a: insertion groove 20: finger socket
21: insertion groove 30: control finger
31: Body 32: Head
40: spring 50: shift lug
51: lug groove 52: seat groove

Claims (7)

A control shaft rotatably operated by an actuator,
A finger socket mounted on an outer circumferential surface of the control shaft,
A control finger having a body inserted into an insertion groove of the finger socket,
And a shift lug having a lug groove into which the head of the control finger is inserted,
The control finger is elastically supported by a spring provided in the insertion groove of the finger socket so that the head of the control finger contacts the inner surface of the lug groove,
Wherein the control finger is rotated in the same direction as the end edge of the control finger head at both sides of the lug groove entrance of the shift lug. When the control finger is rotated during shifting, the end edge of the control finger head is seated in the seating groove, Wherein the shift control device is a shift control device of a vehicle transmission. The method according to claim 1,
Wherein the control finger is in surface contact with an end surface of the head and an inner horizontal surface of the lug groove in a neutral state. delete The method according to claim 1,
And one side of the opposite end edge portion of the end edge portion that is seated in the seating groove is in surface contact with the inner horizontal surface of the shift lug lug groove. The method according to claim 1,
Wherein a spring seat is inserted in the radial direction of the control shaft and the spring is embedded in the insertion groove of the spring seat. The method of claim 5,
Wherein the insertion groove of the spring seat has the same cross-sectional area as the insertion groove of the finger socket. The method of claim 5,
And the control shaft is a hollow shaft.
KR1020150165428A 2015-11-25 2015-11-25 Shifting device of transmission for vehicle KR101735469B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150165428A KR101735469B1 (en) 2015-11-25 2015-11-25 Shifting device of transmission for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150165428A KR101735469B1 (en) 2015-11-25 2015-11-25 Shifting device of transmission for vehicle

Publications (1)

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KR101735469B1 true KR101735469B1 (en) 2017-05-15

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KR1020150165428A KR101735469B1 (en) 2015-11-25 2015-11-25 Shifting device of transmission for vehicle

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228502A (en) 1964-04-07 1966-01-11 Gen Motors Corp Power shift assist mechanism for clutches

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228502A (en) 1964-04-07 1966-01-11 Gen Motors Corp Power shift assist mechanism for clutches

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