KR101607206B1 - Walk-in memory apparatus of asymmetric seat track - Google Patents

Abstract

The present invention relates to a walk-in memory apparatus of an asymmetric seat track. An objective of the present invention is to provide a walk-in memory apparatus which can return to an initial position after operating a walk-in even when a seat stays at an arbitrary position in a front and a rear direction before operating a walk-in, and instantly fix the seat at an arbitrary position regardless of whether a reference position is set. To achieve the objective, the walk-in memory apparatus is a walk-in apparatus of a seat track which comprises a fixed track (10) fixed on a vehicle floor, a moving track (20) fixed on a seat and connected to the fixed track (10) to be moved in a front and a rear direction, and a locking unit (30) to lock the moving track (20) on the fixed track (10), and is linked to a folding operation of a seatback (2) to unlock the locking unit (30) to move the seat forwards. The walk-in memory apparatus comprises a memory unit (200) which connects the moving track (20) and the fixed track (10) when the seatback (2) is folded to set a reference position in the front and the rear direction, stops the seat at the previously set reference position when the seat is moved backwards while the seatback (2) is folded, and disconnects the moving track (20) and the fixed track (10) from each other when the seatback (2) is unfolded regardless of the position of the seat in the front and the rear direction to initialize the previously set reference position.

Description

[0001] The present invention relates to a walk-in memory apparatus of an asymmetric seat track,

The present invention relates to a walk-in apparatus for a vehicle seat track. In particular, even if a seat before a walk-in operation remains at an arbitrary position in forward and backward directions, it is possible to return to an initial position after a walk- And is capable of instantly fixing a seat position according to a user's need regardless of whether the reference position is set or not.

The vehicle seat is provided with a so-called walk-in function for securing a space for the passengers to / from the rear seat through the front door.

Such a walk-in function is basically satisfied by the front and rear slide units for moving the entire seat in the front-rear direction of the vehicle and the folding unit for folding the seat back of the seat forward.

Generally, the folding operation of the seat back is a structure in which the seat back is folded forward by the restoring force of the folding spring (spiral spring) as the locking state of the reclining adjusting the inclination of the seat back is released.

In addition, for simultaneous operation of the front and rear slide units and the folding unit, a cable for simultaneously connecting the front and rear slide units and the recliner is connected to a work-in operation lever provided at one side of the seat.

As a result, as shown in Fig. 1, when the locking operation of the reclining mechanism and the front and rear slide units is released by operating the work-in operation lever 1, the seatback 2 is folded, So that the entire body is kept slidably moved forward of the vehicle.

On the other hand, there is a case where a so-called memory function is added to the seat having such a walk-in function so that the seat can be accurately and quickly positioned to the initial position before the operation, when the seat is returned to the initial position after the walk-

For example, a walk-in memory unit disclosed in Korean Patent Publication No. 2010-0010705 is a work-in device that moves the seat in front of the track in a state where the entire seat is unlocked when the seat back is folded. In the state where the seat back is unfolded Wherein when the seat is moved rearward, the unlocked state of the track is maintained when the seat is located forward of the reference stopper, and the locked state of the track is maintained if the seat is located behind the reference stopper.

In other words, in order to perform the memory function of returning the seat to the initial position after the walk-in operation, the memory unit can perform the memory function only when the seat before the walk-in operation is always located behind the reference stopper.

As a result, such a memory unit generates a seat position in which the memory function can not be performed according to the position of the seat before the work-in operation. In addition, even if the memory function is enabled at the seat position, since the seat is always returned to the predetermined reference position after the work in operation, the occupant of the seat seats the seat in accordance with his or her body shape I had to go through an uncomfortable process of regulating.

Literature 1. Korean Patent Publication No. 2010-0010705 (published Feb. 2, 2010) Document 2. Korean Patent Laid-Open Publication No. 2013-0013362 (published on Mar. 02, 2013)

Therefore, it is an object of the present invention to provide an apparatus and a method for restoring a sheet to an initial position after operation of a workpiece even if the sheet remains in an arbitrary position in forward and backward directions, To a memory device that is a workpiece of a seat track that can be instantly fixed.

A moving track (20) fixed to the seat and connected to the fixed track (10) such that the moving track (20) is movable back and forth; and a moving track (20) And a locking part 30 for locking the locking part 30 to the fixed track 10 so that the locking part 30 is unlocked in cooperation with the folding of the seat back 2 to move the seat forward. , The front and rear reference positions of the seat are set by connecting the moving track (20) and the fixed track (10) when the seat back (2) is folded. When the seat back (2) A memory that initializes the previously set reference position by releasing the connection of the moving track 20 and the fixed track 10 when the seat back 2 is unfolded regardless of the forward and backward positions of the seat, Unit 200 as shown in FIG. The.

In the above-described vehicle seat track, the memory unit 200 is rotatably coupled to a fixed shaft 231 mounted on the moving track 20 so as to interlock with the folding of the seat back 2, A memory link 230 that is pivoted toward the housing 10; A memory drive wheel 250 rotatably coupled to the memory link 230 and interlocked with the memory link 230 to be seated on the fixed track 10; A memory driven wheel 270 rotatably coupled to the fixed shaft 231 of the memory link 230 and connected to the memory drive wheel 250 through a reduction gear; And a memory stopper 270 installed on the memory driven wheel 270 to limit the rotation of the memory driven wheel 270 while holding the memory link 230 from the fixed track 10 in a spaced- (290).

The present invention can return the sheet to the initial reference position at the time of returning from the work in operation and set the reference position at any position of the track and can also set the reference position at any position of the track, Can be set quickly and conveniently.

1 is an operational state view showing a walk-in operation of a vehicle seat.
2 is a perspective view and a front view showing a configuration of a memory device for a walk-in according to the present invention;
3 is a side view showing a configuration of a memory device for a walk-in according to the present invention.
4 is a side view showing the configuration and operation of a work-in drive means according to the present invention;
5 is a perspective view showing the structure of a fixed track according to the present invention.
6 is a side view showing the configuration of a memory unit when unfolding the seat back according to the present invention;
7 is a side view showing a configuration of a memory unit when folding seatback according to the present invention;
8 is an operational state view of the memory unit according to the seat back and forth in the folded state of the seat back.

The features and advantages of the present invention described above or not described above will be more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

FIG. 2 and FIG. 3 are diagrams showing a configuration of a work-in-memory device according to the present invention.

First, as mentioned in the Background of the Invention, the operation of the vehicle seat as a work for securing a space during boarding of the passenger heading to the rear seat through the front door is realized by the front and rear slide of the whole seat and the folding operation of the seat back.

First, the front and rear slide functions of the seat include a fixed track 10 fixed to the vehicle floor, a moving track 20 fixed to the seat and connected back and forth to the fixed track 10, (30) that locks the locking mechanism (10). In other words, the locking portion 30 maintains the locked state of the track that links the fixed track 10 and the moving track 20, and the release lever 31 mounted on the front lower portion of the sheet, Thereby releasing the engagement between the fixed track 10 and the moving track 20, thereby making it possible to freely move the seat back and forth. When the operation force applied to the release lever 31 is removed again, the fixed track 10 and the movement track 20 are locked again.

Referring to FIG. 4, the folding function of the seat is implemented by folding about the rotation axis 3 (folding axis) of the recliner to which the seatback 2 is connected. That is, when the reclining is locked, the seatback 2 is maintained in the locked state, and the seatback 2 is folded forward in a state in which the locking of the reclining is released. And is automatically folded forward by the restoring force of the folding spring 2 as soon as the locking of the recliner is released.

4 is a diagram showing the configuration and operation of a work-in drive means according to the present invention.

On the other hand, in order to satisfy the function of the walk in combination with the front and rear slides of the seat and the folding action, there is a demand for a drive means 100 that is a work that simultaneously releases the locking of the track locking portion (front and rear slide) and the recliner (folding).

In other words, the work-in driving means 100 unlocks the locking portion 30 in association with the folding of the seat back 2 from the operation of the operation lever 1 (see Fig. 1) And a cable 110 connecting the seatback 2 and the locking portion 30 by locking the locking portion 30 in cooperation with the unfolding of the seatback 2.

Specifically, the presser bracket 101 is fixedly coupled to the seat back 2. When the seat back 2 is folded, the pressing bracket 101 is moved in the circular motion about the folding axis 3.

Also, on the folding shaft 3 of the seatback 2, a rotation bracket 103 is rotatably engaged. One end of the rotating bracket 103 is disposed in the moving path of the pressing bracket 101, and the cable 110 is coupled to the other end.

2 and 3, the pivot bracket 105 is provided on the pivot shaft 33 of the release lever 31, which is provided for releasing the locking portion 30. That is, one end of the pivot bracket 105 is coupled to the cable 110, and the other end is fixedly coupled to the pivot shaft 33. As a result, when a tensile force is generated on the cable 110, the pivot bracket 105 is circularly moved about the pivot 33.

Referring to Figs. 2, 3, and 4, briefly explaining the action of the work-in drive means 100,

When the work-in operation lever 1 is operated to fold the seat back 2, the pressing bracket 101 is rotated together with the seat back 2 to press the rotating bracket 103 to rotate the rotating bracket 103, A tensile force is generated in the cable 110 according to the rotation operation. As a result, the pivot bracket 105 is pulled backward, and the release lever 31 is actuated to release the locking of the locking portion 30.

The operation in which the entire sheet is moved forward of the track is temporarily completed at the moment when the locking of the track locking portion 30 is released by the rotational force of the seat back 2 folded by the restoring force of the actual folding spring 4. [

When the seat back 2 is unfolded in this state, the pulling force of the cable 110 is lost and the returning spring 32 is returned to the position of the track locking portion 30 in accordance with the returning action of the release lever 31, Is again locked.

In the case of a seat track having such a walk-in function, the present invention can move the seat forward in accordance with the work-in operation, and accurately move the seat to the initial position that was previously set However, it is possible to return to the initial position after the work-in operation even if the seat before the work-in operation remains at an arbitrary position in the front-rear direction, and the seat position at various positions can be maintained according to the operation .

In other words, in the walk-in memory device according to the present invention, when the seat back 2 is folded, the movable track 20 and the fixed track 10 are connected to set the reference position in the longitudinal direction of the seat, When the seat back is moved backward, the seat is stopped at the previously set reference position, and when the seat back 2 is unfolded regardless of the forward and backward positions of the seat, And a memory unit 200 for releasing the connection and initializing the previously set reference position.

FIGS. 6 and 7 show the structure of the memory unit according to the present invention, respectively. FIG. 6 shows a state in which the seatback is unfolded, and FIG. 7 shows the state in which the seatback is folded.

The memory unit 200 of the present invention for this purpose includes a memory link 230, a memory drive wheel 250, a memory driven wheel 270, and a memory stopper 290.

The memory link 230 is mounted on the moving track 20 and is rotated by the driving means 100 which is a work for folding the seat back 2. The memory link 230 is formed in a C- And the other end penetrating the through groove 21 of the moving track 20 is connected to the cable 110 of the drive means 100 as a work.

And a guide mounting member 240 is provided at one end of the memory link 230 which is connected to the cable 110 through the through groove 21 of the moving track 20. [ The guide mounting member 240 is hingedly connected to one end of the memory link 230 and is configured to be slidable on the cable 110 while penetrating the cable 110.

When the tension force is generated on the cable 110, the guide mounting member 240 hinged to the moving track 20 is moved in conjunction with the cable 110 and is inserted into the through groove 21 of the moving track 20, The cable 110 with the tensile force is moved in the direction of the axis of the pivot bracket 105 coupled to the pivot shaft 33 of the release lever 31 As the arc operating path (downward movement) changes, it is moved downward as a whole.

The memory link 230 interlocks with the folding of the seat back 2 in the through groove 21 of the moving track 20 to move the one fixing shaft 231 in conjunction with the change in height of the cable 110, As shown in Fig. The amount of rotation of the memory link 230 is sufficient as long as the memory drive wheel 250, which will be described later, can be seated on the fixed track 10.

The reference numeral '235' is a stopper for limiting the upward rotation of the memory link 230.

The memory drive wheel 250 is rotatably coupled to the memory link 230 and is hingedly coupled to the central bend of the memory link 230 as shown.

As a result, the memory drive wheel 250 is seated on the fixed track 10 in association with the memory link 230 rotated by the work-in drive means 100 and moves downward, A rolling operation is performed when the sheet moves forward and backward.

On the other hand, the gear protrusion 251 may be radially provided on the outer circumferential surface of the memory drive wheel 250. In this case, the memory drive wheel 250 satisfies the structure in which the gear protrusion 251 is gear-engaged with the locking groove 11 (see FIG. 5) provided on the fixed track 10 in a state of being mounted on the fixed track 10 .

The fixed track 10 may be provided with a separate memory rail 210 having a plurality of gear grooves 211 in the forward and backward directions so as to be gear-engaged with the gear protrusions 251 of the memory drive wheel 250.

The memory driven wheel 270 is rotatably coupled to the fixed shaft 231 of the memory link 230 and is connected to the memory drive wheel 250 and the reduction gear 260.

As a result, the memory driven wheel 270 is rotated at a predetermined ratio in conjunction with the rotation of the memory driving wheel 250.

The memory stopper 290 is fixed to the memory driven wheel 270 and is supported by the engagement groove 233 of the memory link 230 to limit the rotation of the memory driven wheel 270. A torsion spring 280 is provided for connecting the memory stopper 290 and the fixed shaft 231 of the moving track 20 so that the memory stopper 290 can move from the fixed track 10 to the memory drive And is configured to resiliently support the memory link 230 such that the wheel 250 is spaced apart.

6, when the external force is not transmitted from the work-in drive means 100 to the memory drive wheel 250, the memory stopper 290 is inserted into the locking groove 233 of the memory link 230 And the memory drive wheel 250 is spaced from the fixed track 10 as the memory link 230 is pressed upward from the elastic force of the torsion spring 280. [

8 is a view showing the operating state of the memory unit according to the seat back and forth in the folding state of the seat back. The operation of the seat track will be described with reference to FIGS. 6, .

<Unfolding of the seatback>

Referring to Figs. 4A and 6, in the unfolded state of the seat back 2, the operating force of the rotating bracket 103 is lost from the seatback 2, and the tension of the cable 110 is lost.

At this time, the memory link 230 is elastically hooked to the memory stopper 290 mounted on the memory driven wheel 270.

When the seat back 2 is unfolded, the memory unit 200 is operated so that the memory drive wheel 250 is moved to the memory (not shown) of the fixed track 10 regardless of whether the release lever 31 for releasing the locking of the locking portion 30 is operated or not. An initialized state spaced upward from the rail 210 is maintained. In this state, when the seat is moved back and forth, it is moved back and forth freely in interlock with the movement track 20 without interfering with the fixed track 10.

<Seatback Folding>

Referring to FIGS. 4B and 7, when the seat back 2 is folded for work-in operation, the rotating bracket 103, which is in contact with the pressing bracket 101 interlocked with the seat back 2, A tensile force is generated.

As a result, the release lever 31 connected to the cable 110 is lifted via the pivot bracket 105 and the locking of the locking portion 30 is released.

At the same time, the memory link 230 coupled to the cable 110 via the guide mounting member 240 is rotated downward about the fixed shaft 231, The gear protrusion 251 of the wheel 250 is engaged with the gear groove 211 of the memory rail 210. The position where the memory drive wheel 250 is engaged with the memory rail 210 corresponds to the reference position in which the seat back 2 before the operation as the walk is folded.

The sheet is slid to the forefront of the track by the rotational force of the folded back seat 2.

8A, when the seat is moved forward, the memory drive wheel 250 is rotated forward along the memory rail 210, and the memory drive wheel 250 and the memory drive wheel 250, which is decelerated and rotated at a constant reduction ratio, The memory stopper 290 compresses the torsion spring 280 while being spaced apart from the locking groove 233 of the memory link 230.

Referring to FIG. 8B, after the operation of the work of the seat is completed as described above, when the entire seat is moved backward while maintaining the folded state of the seatback 2, the memory drive wheel 250 moves backward along the memory rail 210 And the memory stopper 290 is moved closer to the latching groove 233 of the memory link 230 by interlocking with the memory driven wheel 270 which is rotated at a constant speed reduction ratio with the memory driving wheel 250.

7, the memory stop wheel 290 reaches the pre-operation reference position, which is a work supported by the retaining grooves 233 of the memory link 230. At the same time, the memory driven wheel 270 is moved further backward So that the sheet can no longer be moved backward.

<Unfolding of the seatback>

4A and 6, when the user then unfolds the seat back 2, the operating force applied to the rotating bracket 103 is lost and the tensile force of the cable 110 is lost. At the same time, the release lever 31 The locking portion 30 is locked by the restoring force of the return spring 32 to hold the seat position.

As the tension of the cable 110 is lost, the memory link 230 elastically supported on the memory stopper 290 is rotated upward so that the memory drive wheel 250 moves from the memory rail 210 of the fixed track 10 It is separated.

As described above, according to the present invention, in the process of moving the entire seat back while maintaining the folded state of the seat back 2 regardless of the work in operation, Unfolding the memory unit 2 can initialize the set reference position of the memory unit 200 from the above action and immediately lock the seat to the desired position.

As a result, the seat track using the memory unit 200 of the present invention can return the sheet to the initial reference position at the time of returning to the work-in operation, set the reference position at any position of the track, The position of the seat can be quickly and conveniently set according to the user's need at any position of the track.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

2: Seatback 3: Folding axis
4: folding spring 10: fixed track
20: Moving track 30:
31: release lever 100: work-in drive means
101: pressure bracket 103: rotation bracket
105: pivot bracket 110: cable
200: memory unit 210: memory rail
211: gear groove 230: memory link
231: fixed shaft 233:
240: guide mounting member 250: memory drive wheel
251: gear projection 260: reduction gear
270: Memory drive wheel 280: Torsion spring
290: Memory stopper

Claims (4)

A fixed track 10 fixed to the vehicle floor, a moving track 20 fixed to the seat and connected to the fixed track 10 for movement back and forth, and a locking (30) to unlock the locking portion (30) in cooperation with the folding of the seat back (2) so as to move the seat forward,
When the seat back 2 is folded, the moving track 20 and the fixed track 10 are connected to set the reference position in the forward and backward direction of the seat. When the seat back 2 is folded, A memory unit for initializing the previously set reference position by releasing the connection of the moving track 20 and the fixed track 10 when unfolding the seat back 2 regardless of the forward and backward positions of the seat, (200)
The memory unit 200 is a memory unit that is rotatably coupled to a fixed shaft 231 mounted on a moving track 20 and rotatable toward the fixed track 10 in conjunction with folding of the seat back 2, Link 230; A memory drive wheel 250 rotatably coupled to the memory link 230 and interlocked with the memory link 230 to be seated on the fixed track 10; A memory driven wheel 270 rotatably coupled to the fixed shaft 231 of the memory link 230 and connected to the memory drive wheel 250 through a reduction gear; A memory stopper provided on the memory driven wheel 270 for restricting the rotation of the memory driven wheel 270 and holding the memory link 230 in an elastic manner such that the memory link 230 is separated from the fixed track 10 290, &lt; / RTI &gt;
The pivot bracket 105 provided on the pivot shaft 33 of the release lever 31 is connected to the seatback 2 by the cable 110 so that the locking portion 30 is unlocked when the seatback 2 is folded And a guide mounting member (240) hingedly connected to one end of the memory link (230) passing through the moving track (20) and configured to slide on the cable (110) Wherein the memory is a memory.
delete The method according to claim 1,
The fixed track (10) is provided with a memory rail (210) having a plurality of gear grooves (211) in the forward and backward directions;
Wherein the memory drive wheel (250) is provided with a gear protrusion (251) on the outer circumference to be inserted into the gear groove (211).
delete

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