KR20140079165A - Shift locking device for automotive transmission - Google Patents

Shift locking device for automotive transmission Download PDF

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Publication number
KR20140079165A
KR20140079165A KR1020120148819A KR20120148819A KR20140079165A KR 20140079165 A KR20140079165 A KR 20140079165A KR 1020120148819 A KR1020120148819 A KR 1020120148819A KR 20120148819 A KR20120148819 A KR 20120148819A KR 20140079165 A KR20140079165 A KR 20140079165A
Authority
KR
South Korea
Prior art keywords
plunger
hole
damper
shift lock
slot
Prior art date
Application number
KR1020120148819A
Other languages
Korean (ko)
Inventor
김정기
박삼훈
Original Assignee
에스엘 주식회사
주식회사 에스엘 서봉
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 에스엘 주식회사, 주식회사 에스엘 서봉 filed Critical 에스엘 주식회사
Priority to KR1020120148819A priority Critical patent/KR20140079165A/en
Publication of KR20140079165A publication Critical patent/KR20140079165A/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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/0208—Selector apparatus with means for suppression of vibrations or reduction of noise
    • 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
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
    • 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
    • F16H61/22—Locking of the control input devices

Abstract

The present invention relates to a shift lock device of a vehicle transmission and, more specifically, to a shift lock device of a vehicle transmission, capable of having a shift lock feature using a solenoid device. The shift lock device of the vehicle transmission according to an embodiment of the present invention includes a bobbin in which a coil is wound on the outer surface to selectively magnetize a through hole formed inside; a fixed core fixed on one side of the through hole; a plunger which is disposed on the other side of the through hole and moves straight in a direction parallel to the through hole depending on the magnetization of the through hole; a damper which is fixed on a moving path of the plunger at the outside of the bobbin; and a plunge arm to which one end of the plunger and one end of a lock lever are connected and has a slot to which the damper is inserted in movement of the plunger.

Description

[0001] The present invention relates to a shift lock device for automotive transmission,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shift lock apparatus for a vehicle transmission, and more particularly, to a shift lock apparatus for a vehicle transmission capable of implementing a shift lock function using a solenoid apparatus.

Generally, a vehicle transmission can have a different gear ratio to keep the rotation of the engine constant according to the speed of the vehicle, and the driver can operate the shift lever in the transmission to change the gear ratio of the transmission can do. The shift mode of the vehicular transmission includes a manual shift mode in which the driver can change the speed change stage and an automatic shift mode in which the shift mode is automatically changed in accordance with the speed when the driver selects the drive mode (D).

In addition, a sports mode type transmission capable of performing manual shifting and automatic shifting in one transmission is used. The sports mode type transmission may be implemented by a manual transmission performing the automatic shifting by raising or lowering the number of gears of the driver while performing automatic shifting in principle or by providing a transmission capable of automatic shifting next to the transmission performing manual shifting.

The shift lock function is a function developed to prevent the occurrence of a sudden accident frequently. It is basically a function of the shift lever of the shift lever in the "P" or " N "single-stop pedal to prevent the shift lever from moving to other positions, and a second shift to prevent the shift lever from moving to the" R "stage when the vehicle is moving forward beyond a certain speed It has a lock function. In order to prevent the driver from malfunctioning, a full shift lock function capable of shift lock can be implemented for all gear positions.

The shift lock function is performed by a solenoid device connected to the shift lever to inhibit the shift lever from moving. The solenoid device is used in various fields including a valve device, a mechanical device, a shift lock device of a shift lever of a vehicle, and the like by being applied to the operation of a valve or a lever by the action of an electromagnet.

1 is a perspective view showing a shift lock device of a conventional vehicular transmission.

The shift lock device 10 of the conventional vehicular transmission is connected to the lock lever 20 and includes a bobbin 12 wound with a coil 11 through which a current flows to form a magnetic field, A plurality of dampers 15a and 15b for buffering the collision between the fixed cores 13a and 13b and the plunger 14 are provided.

When the shift lock device 10 of the conventional vehicular transmission is in operation, the plunger 14 and the fixed iron core 13a come into contact with each other to generate shock and noise. To solve this problem, a damper 15a is provided in the plunger 14 . However, when the damper 15a is disposed in the plunger 14, the lifetime of the damper 15a is shortened due to the heat generated by the coil 11.

Further, since the plurality of fixed iron cores 13a, 13b and the dampers 15a, 15b must be provided, there is a limit in lowering the manufacturing cost of the shift lock device 10 of the vehicular transmission.

Therefore, there is a demand for a means for increasing the service life of the shift lock device of the vehicular transmission and reducing the manufacturing cost.

Korean Patent Publication No. 2004-0003637

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a vehicular transmission that can improve the cumulative tolerance and noise by reducing the number of components of a damper and a fixed core of a shift lock device of a vehicular transmission. Lock mechanism.

According to an aspect of the present invention, there is provided a shift lock device for a vehicular transmission, comprising: a bobbin having a coil wound on an outer surface thereof so that a through hole formed therein is selectively magnetized; A fixed iron core fixed to one side of the through hole; A plunger disposed on the other side of the through hole and linearly moving in a direction parallel to the through hole depending on whether the through hole is magnetized; A damper fixed on the movement path of the plunger outside the bobbin; And a plunger arm having both ends connected to one end of the plunger and one end of a lock lever and having a slot into which the damper is inserted when the plunger is moved.

According to the shift lock apparatus of the vehicle transmission as described above, one or more of the following effects can be obtained.

First, by reducing the number of parts of the damper and the fixed iron core of the shift lock device of the vehicular transmission, it is possible to reduce scattering of cumulative tolerance and damper characteristics.

Second, since the damper of the shift lock device of the vehicular transmission is located outside the plunger (i.e., outside the bobbin), the lifetime of the damper can be prolonged without causing a hardening phenomenon due to heat generated in the coil.

Third, there is an effect that noise can be reduced through a damper provided in a shift lock device of a vehicle transmission.

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

1 is a perspective view showing a shift lock device of a conventional vehicular transmission.
2 is a cross-sectional view illustrating a shift lock apparatus of a vehicle transmission according to an embodiment of the present invention.
3 is a perspective view showing a shift lock apparatus of a vehicle transmission according to an embodiment of the present invention.
4 is an enlarged front view of a plunger arm of a shift lock device of a vehicle transmission according to an embodiment of the present invention.
5 is an enlarged front view of a plunger arm of a shift lock device of a vehicle transmission according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

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

Further, the embodiments described herein will be described with reference to the perspective view, cross-sectional view, side view, and / or schematic views, which are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are generated according to the manufacturing process. In addition, in the drawings of the present invention, each constituent element may be somewhat enlarged or reduced in view of convenience of explanation.

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

FIG. 2 is a cross-sectional view illustrating a shift lock apparatus of a vehicle transmission according to an embodiment of the present invention, and FIG. 3 is a perspective view illustrating a shift lock apparatus of a vehicle transmission according to an embodiment of the present invention.

2, the shift lock apparatus 100 of the vehicular transmission according to the embodiment of the present invention is connected to a lock lever 200 that moves in one direction to select a gear position. The lock lever 200 can selectively limit the movement of the shift lever. For example, by inserting one end of the lock lever 200 into the insertion portion formed in the shift lever, the movement of the shift lever can be restricted.

The shift lock apparatus 100 of the vehicular transmission includes a housing 110. The housing 110 is provided with a bobbin 130 wound with a coil 120 through which current flows, A plunger 150 having a fixed iron core 140 fixed to one side thereof and capable of linear movement due to magnetization formed by currents and a plunger 150 having a damper 160 for alleviating a collision between the fixed iron core 140 and the plunger 150. [ An arm 170 is provided.

The shift lock apparatus 100 of the vehicular transmission will be described in more detail with reference to Fig.

A coil 120 is wound on an outer surface of the bobbin 130 so that a through hole formed therein is selectively magnetized, and a fixed iron core 140 is fixedly disposed on one side of the through hole.

The plunger 150 is disposed on the other side of the through hole of the bobbin 130 and linearly moves in a direction parallel to the through hole formed in the bobbin 130 depending on whether the through hole is magnetized or not. That is, due to the magnetic field generated by the current applied to the coil 120, the fixed iron core 140 and the plunger 150 are magnetized by the electromagnet, and the plunger 150 is linearly moved toward the fixed core 140 .

A spring 151 for returning the plunger 150 to its original position is provided outside the plunger 150 when magnetization of the through hole is removed. That is, when the current is cut off and the magnetization is removed, the plunger 150 returns to its original position, that is, the position where the plunger 150 is spaced apart from the fixed core 140, by the elastic restoration of the spring 151. A cover yoke 180 having a circular opening through which the plunger 150 penetrates and is fixed to the housing 110 near one side of the bobbin 130 is provided.

The damper 160 is installed outside the bobbin 130 and is located in the plunger arm 170. That is, the damper 160 is fixedly installed in the plunger arm 170 on the movement path of the plunger 150.

The plunger arm 170 is connected to one end of the plunger 150 and one end of the lock lever 200. The plunger arm 170 includes a slot 171 in which the damper 160 starts and a pair of guide protrusions 172 protruding in the direction of penetration of the slot 171 to guide the damper 160. Here, the damper 160 can be positioned along the guide protrusion 172 from one end to the other end in the slot 171 or from the other end to the one end by the linear movement of the plunger arm 170. The damper 160 serves to buffer the collision between the fixed core 140 and the plunger 150 and restrict the range of movement of the plunger 150 when the plunger 150 moves. The slot 171 is shown in an elliptical shape. However, the slot 171 is only an example for facilitating the understanding of the present invention, and the present invention is not limited thereto. For example, the slot 171 may have various shapes depending on the moving direction of the plunger 150, the shape of the damper 160, And the like.

Meanwhile, the damper 15a is disposed in the plunger 14 because shock and noise are generated when the plunger 14 and the fixed iron core 13a come into contact with each other when the shift lock device 10 of the conventional vehicular transmission is operated It is not necessary to arrange the damper between the fixed core 140 and the plunger 150 because the fixed iron core 140 and the plunger 150 are not in contact with each other.

The shift lock device 100 of the present invention is not limited to the conventional art in which the damper 160 is disposed inside the plunger 150 and the plunger arm 170 provided on the end surface of the plunger 150, A damper 160 fixed within the slot 171 of the damper 160 can be disposed. Since the plunger 150 may be provided with only one damper 160, only one fixed core 140 is sufficient.

Since the damper 160 can mitigate the collision between the fixed core 140 and the plunger 150 without providing a plurality of dampers and a plurality of fixed cores as in the conventional art, And the manufacturing cost can be reduced.

Further, since the damper 160 is formed outside the bobbin 130 and is not affected by the heat generated in the coil 120 (that is, the hardening phenomenon does not occur), the service life can be further extended.

FIG. 4 is an enlarged front view of a plunger arm of a shift lock apparatus of a vehicle transmission according to an embodiment of the present invention, and FIG. 5 is an enlarged view of a plunger arm of a shift lock apparatus of a vehicle transmission according to another embodiment of the present invention Front view.

A slot 171 formed through the plunger arm 170 and a pair of guide protrusions 170 protruding in the direction of penetration of the slot 171 to guide the movement of the damper 160 A damper 160 is interposed between the plunger arm 170 and the plunger arm 170.

When the current is applied to the coil 120, the plunger 150 is magnetized and linearly moved according to the applied signal. The damper 160 moves along the guide protrusion 172 in the slot 171 from one end to the other end Or at the other end. Accordingly, the lock lever 200 connected to one end of the plunger arm 170 also rotates on the basis of the rotation shaft, thereby restricting the shift lever, thereby performing the shift lock function.

For example, assuming that the plunger 150 is magnetized and linearly moved, FIG. 5 shows a state in which magnetization is removed from the plunger 150 and the plunger 150 is returned to its original position by the restoring force of the spring ≪ / RTI >

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

100: shift lock device of a vehicle transmission
200: Lock lever
110: Housing
120: Coil
130: Bobbin
140: Fixed iron core
150: plunger
160: damper
170: plunger arm

Claims (6)

A bobbin having a coil wound on its outer surface so that the through hole formed therein can be selectively magnetized;
A fixed iron core fixed to one side of the through hole;
A plunger disposed on the other side of the through hole and linearly moving in a direction parallel to the through hole depending on whether the through hole is magnetized;
A damper fixed on the movement path of the plunger outside the bobbin; And
And a plunger arm having both ends connected to one end of the plunger and one end of a lock lever and having a slot into which the damper is inserted. The method according to claim 1,
Wherein the slot limits the range of movement of the plunger, and is formed through the plunger arm. The method according to claim 1,
The damper may be located between a first position that is closest to the plunger in the slot and a second position that is farthest from the plunger, the damper being located in the second position when the through hole is magnetized, And is located at the first position when the magnetization of the hole is removed. The method according to claim 1,
Wherein the plunger arm further includes a pair of guide protrusions projecting in a direction of the slot to guide relative movement of the damper to the slot. The method according to claim 1,
Further comprising a cover yoke having a circular opening through which the plunger passes and fixed to the housing near one side of the bobbin. The method according to claim 1,
And a spring coaxially disposed outside the plunger and interposed between the plunger and the plunger arm to return the plunger to its original position when magnetization of the through hole is removed.
KR1020120148819A 2012-12-18 2012-12-18 Shift locking device for automotive transmission KR20140079165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120148819A KR20140079165A (en) 2012-12-18 2012-12-18 Shift locking device for automotive transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120148819A KR20140079165A (en) 2012-12-18 2012-12-18 Shift locking device for automotive transmission

Publications (1)

Publication Number Publication Date
KR20140079165A true KR20140079165A (en) 2014-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120148819A KR20140079165A (en) 2012-12-18 2012-12-18 Shift locking device for automotive transmission

Country Status (1)

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KR (1) KR20140079165A (en)

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