JP4079696B2 - Vehicle seat slide mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to, for example, a slide mechanism that enables a vehicle seat to be moved forward. More specifically, the vehicle seat can be moved forward only when the rear seat of the vehicle seat is slid to the rearmost position, and cannot be moved forward at other slite positions. The present invention relates to a vehicle seat slide mechanism having a locking function.
[0002]
[Prior art]
The vehicle seat slide mechanism described above is generally provided with an upper channel so as to be slidably engaged in the longitudinal direction of the lower channel attached to the vehicle body in the longitudinal direction. A vehicle seat is attached to the upper channel.
[0003]
For rear seats equipped with such a sliding mechanism, the seat back is folded forward so that it can be folded forward in a double fold so that the seat can be folded forward, and the folded seat is further folded over the front end of the lower channel. The thing of the structure put forward as a rotation center is known.
[0004]
By the way, as a mechanism for locking the lower channel that can be moved forward to the vehicle body, a striker is attached to the vehicle body side, and a so-called catcher is disposed in a lower channel portion corresponding to the striker. The catcher includes a lock groove in which a lower channel is notched to insert a striker, a rotating lock plate for locking the striker, and a rotating lock member for stopping the lock plate in a locked position, The striker locks when the lock plate closes the lock groove, and unlocks when the lock groove is opened.
[0005]
For the rotation of the lock plate, a spring biasing force is used in one direction, and a pulling force is used in the other direction via a flexible wire or the like. One end of the wire is connected to the catcher side, and the other end is connected to a handle provided on the back side of the seat, and loosened between the lower channel and upper channel to allow sliding between the two channels. ing. Therefore, a flexible wire or the like is used for rotating the lock plate.
[0006]
Further, the above-described unlocking is possible only when the rear seat is slid to the end position. The reason why unlocking is possible only at the rearmost position is to ensure that the folded rear seat is stored in the storage space between the floor seat and the like, for example. And it is necessary to detect whether or not the upper channel has slid to the end position, and a sensing means is provided.
[0007]
[Problems to be solved by the invention]
Therefore, in the case of the conventional vehicle seat slide mechanism described above, the flexible wire or the like is loosened between the lower channel and the upper channel. There is a risk that the reliability of the system will be lowered. In addition, it requires a sensing means for sensing whether or not the sheet has been slid to the rearmost position, resulting in a high cost.
[0008]
The present invention has been made to solve the above-described problems of the prior art, and provides a vehicle seat slide mechanism capable of improving the reliability of the seat slide and reducing the cost. The purpose is to do.
[0009]
[Means for Solving the Problems]
A vehicle seat slide mechanism according to the present invention includes a lower channel that is slidably mounted on a vehicle body, and an upper channel that is slidably engaged with the lower channel and to which a vehicle seat is mounted. This is a vehicle seat slide mechanism having a locking means that can be unlocked with respect to a striker provided on the vehicle body only when it is slid to the rearmost position . The locking means can be rotated forward and backward in the lower channel. A lock plate with a lock part that locks the striker during forward rotation and unlocks the striker during reverse rotation, a return spring that imparts reverse rotation force to the lock plate, and rotation to the lower channel And a locking member that stops the locking plate at the locking position. A lever that is swingably provided in the per channel and engages with a lever engaging portion provided in the lock member when the upper channel is at the rearmost position, and releases a stop state of the lock plate stopped at the lock position. And a manual operation means provided on the vehicle seat for swinging the lever. The first shaft is attached to the lower channel and rotatably supports the lock member, and is attached to the upper channel. The second shaft for pivotally supporting the lever is arranged so as to approach when the upper channel is at the rearmost position .
[0010]
In the vehicle seat slide mechanism according to the present invention, the lock member provided on the lower channel side and the lever provided on the upper channel side have a lever engagement with the lock member when the upper channel is at the rearmost position. It engages with the joint and is divided when it is in another slide position. Therefore, even if the lever is swung by operating the manual operation means when it is not at the rearmost position, the lever does not engage with the lock member and swings in an idle state. Therefore, a means for sensing that the upper channel is located at the rearmost position is unnecessary, and the cost can be reduced.
[0011]
Further, when the manual operation means is operated when the upper channel is at the rearmost position, the lever swings and the lock member rotates so that the striker is unlocked, that is, the lock member and the upper on the lower channel side. Since the lever on the channel side is engaged and the manual operation means for swinging the lever is provided on the seat that slides with the upper channel, there is no need to provide a slack for securing the slide of the upper channel. As a result, it is possible to prevent catching on members around the seat, and to improve the reliability of the seat slide.
[0012]
Further, since the first shaft that rotatably supports the lock member and the second shaft that rotatably supports the lever approach each other at the rearmost position, the lever is swung by pulling the manual operation portion. The force can be efficiently transmitted to the rotation of the lock member.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described.
[0014]
FIGS. 1A to 1D are views (outer perspective view) for explaining the storing operation of the rear seat of the vehicle to which the slide mechanism according to this embodiment is applied, and FIG. 2 is applied to the rear seat. FIG. 3 is a front view showing a slide mechanism according to the present embodiment, and FIG. 3 is a left side view showing an upper portion of the slide mechanism. 4 is an external perspective view showing the locking means that is the main part of the present invention, FIG. 5 is an exploded perspective view showing the locking means of the main part, and FIG. 6 is one of the manual operation means constituting the locking means. It is a schematic diagram which shows a part.
[0015]
As shown in FIG. 1A, the rear seat 90 is a seat for a plurality of people, and the slide mechanism 1 of the present embodiment is disposed at the lower portions on both the left and right sides of the seat cushion 91. By operating the slide lever 92 provided at the lower front side of the front and rear, it can slide in the front-rear direction. When the seat back forward levers 94 provided on the rear sides of the both sides of the seat back 93 are operated as shown in FIG. 1B, the corresponding seat back 93 is brought forward as shown in FIG. And overlaps the seat cushion 91. Furthermore, when the flip-up lever 95 provided at the rear center part of the seat cushion 91 is pulled, as shown in FIG. 1 (d), the slide mechanism 1 that is locked to the striker 96 fixed to the vehicle body side. Becomes unlocked, and the seat cushion 91 on which the seat back 93 is stacked is further brought forward. In other words, it is possible to move forward in double fold.
[0016]
As shown in FIG. 2, the slide mechanism 1 has a pair of lower channels 2 provided on the lower sides of the left and right sides of the rear seat 90 and extending in the front-rear direction of the vehicle body 9, and upper portions of the lower channels 2. And an upper channel 3 slidably engaged in the longitudinal direction. A large number of rollers 4 are provided between the two channels 2 and 3 in the longitudinal direction of both channels (see FIG. 3), and the upper channel 3 is slidable with respect to the lower channel 2. A vehicle seat is attached to the upper part of the upper channel 3.
[0017]
The vehicle body 9 is provided with a pair of left and right support members 9a separated by an appropriate length in the width direction, and a support piece 5 is attached to the lower front side of each lower channel 2, and the support pieces 5 of each lower channel 2 are It is rotatably supported by a shaft 9b provided on each support member 9a. On the other hand, a stopper 8 that contacts the vehicle body 9 is attached to the lower rear portion of each lower channel 2, and a lock means 10 is provided at the lower rear portion of each lower channel 2, and the vehicle body 9 corresponding to the lock means 10 is provided. A striker 96 is attached to the portion. The lock means 10 is configured to be in a locked state when engaged with the striker 96 and to be unlocked when disengaged from the striker 96. Therefore, when the lock means 10 is unlocked, the vehicle seat attached to the upper portion of the upper channel 3 can be moved forward together with the lower channel 2. The structure of the locking means 10 will be described in detail later, but a part 10a thereof is attached to the upper channel 3 and moves following the slide of the upper channel 3.
[0018]
As shown in FIGS. 4 and 5, the lock means 10 includes a lock groove 11 provided in the lower channel 2, a lock plate 12 attached to the lower channel 2 so as to be rotatable forward and backward, and the lock plate 12. A return spring 13 made of, for example, a coil spring for applying a reverse force (a force rotating in the counterclockwise direction), a lock member 14 attached to the lower channel 2, and an upper channel 3 that is swingably provided via a bracket 15. And a manual operation means 17 for swinging the lever 16 in a predetermined direction.
[0019]
As shown in FIG. 4, the manual operation means 17 includes a wire 18 having one end fixed to the upper portion of the lever 16 and the other end of the wire 18 connected via the interior of the seat cushion 91 as shown in FIG. The flip-up lever 95 as a manual operation unit is provided, and the lever 95 is provided on the rear side of the seat cushion 91. In addition, it can replace with the wire 18 and can also use other force transmission members, such as a some rod connected through the joint.
[0020]
The lock groove 11 is formed in a U shape with an opening on the lower side so that the striker 96 can enter and exit, and a striker receiver 11a is provided in the inner back (see FIG. 7).
[0021]
The lock plate 12 is plate-shaped, and a shaft hole 12 a is formed at the center of rotation. The shaft hole 12 a is rotatably attached to a shaft 2 a provided in the lower channel 2. On the peripheral surface of the lock plate 12, a lock portion 12b, a locking portion 12c, a return portion 12d, and a spring locking portion 12e are formed.
[0022]
The lock portion 12b is formed of a groove recessed in a concave shape, and holds the striker 96 that has entered the lock groove 11 in the groove to prevent the lock portion 12b from coming off (see FIG. 7). When the lock portion 12b is in the locked state, the lock portion 12b is set so as to be positioned at a predetermined angular position where the lock portion 12b is locked with a later-described locked portion 14b, that is, an angular position where the lock plate 12 is stopped. . The spring locking portion 12e is formed to protrude outward, and one end of the return spring 13 is locked to the spring locking portion 12e. The return spring 13 applies a rotational force in the counterclockwise direction A to the lock plate 12, and the lock portion 12b of the lock plate 12 escapes from the lock groove 11 to bring the striker 96 into an unlocked state (see FIG. 10). ), And the other end is locked to a locking pin 2 b provided in the lower channel 2. When the spring locking portion 12e rotates in the counterclockwise direction A, it comes into contact with a stopper 2f provided on the lower channel 2. Here, the position of the lock plate 12 when the spring locking portion 12e contacts the stopper 2f is referred to as an unlock position.
[0023]
The lock member 14 is plate-shaped, and a shaft hole 14a is formed at the center of rotation. The shaft hole 14a is rotatably supported by a shaft 2c attached to the lower channel 2. A locked portion 14b and a spring locking portion 14c that are locked with the locking portion 12c when the plate 12 is in the locked position are provided, and a lever engaging pin 14d as a lever engaging portion is provided on the lower side surface side. Is formed. The lever engaging pin 14d is passed through the rotation angle regulating hole 2d formed in the lower channel 2 from the inside toward the outside. Therefore, the lock member 14 is rotatable in a certain angle range corresponding to the arc length dimension of the rotation angle restricting hole 2d.
[0024]
One end of a second return spring 20 made of, for example, a coil spring is locked to the spring locking portion 14c, and the second return spring 20 applies a clockwise B rotational force to the lock member 14 to be locked. The portion 14 b is made to act so as to be engaged with the engaging portion 12 c of the lock plate 12, and the other end of the second return spring 20 is engaged with an engaging pin 2 e provided in the lower channel 2.
[0025]
The lever 16 is a long and thin plate material. A shaft hole 16a is formed at the center of swinging, and the shaft hole 16a is swingably supported by a shaft 15a provided on the bracket 15 attached to the upper channel 3. ing. A wire mounting hole 16b and a spring locking hole 16c are formed in the upper portion of the lever 16, and the other end of the wire 18 is mounted in the wire mounting hole 16b. A tension biasing spring 21 is provided in the spring locking hole 16c. One end is attached. The other end of the tension biasing spring 21 is locked to a spring locking portion 15 b provided on the bracket 15. The lower right side surface 16d of the lever 16 is formed so as to function as a pin moving portion that moves the lever engaging pin 14d counterclockwise (in the direction opposite to B) along the rotation angle restricting hole 2d. . Further, the bracket 15 is formed with a stopper 15c and a wire through hole 15d. The stopper 15c is restricted as a swing limit when the upper portion of the lever 16 is pulled by the wire 18 and swings counterclockwise C. Thus, the wire through hole 15d is for attaching a fixing member 22 for fixing the end of the guide tube 18a provided on the outside of the wire 18. The lever 16 provided on the bracket 15 is a part 10a of the lock means 10 that moves following the slide of the upper channel 3 described above.
[0026]
Next, the operation content of the slide mechanism 1 configured as described above will be described with reference to FIGS.
[0027]
FIG. 8 shows the relationship between the lock plate 12, the lock member 14, and the lever 16 when the sheet is positioned in front of the rearmost position, and FIG. 9 shows the lock plate 12 and the lock when the sheet is positioned at the rearmost position. The relationship between the member 14 and the lever 16 is shown.
[0028]
As shown in FIG. 8 and FIG. 9, the lock plate 12 holds the state where the rotation is stopped at the lock position by the engagement of the engaging portion 12 c of the lock plate 12 and the engaged portion 14 b of the lock member 14. . That is, the lock member 14 receives a clockwise rotational force B from the second return spring 20, and the lever engagement pin 14d abuts one end (the front end on the left side of the drawing) of the rotation angle restricting hole 2d to rotate the lock member 14. Is stopped, and the locked portion 14b of the lock member 14 whose rotation has stopped stops the rotation of the lock plate 12.
[0029]
Thus, the lock plate 12 and the lock member 14 that hold the rotation stop state are both provided in the lower channel 2, but the lever 16 is provided on the slidable upper channel 3 side. Therefore, when the lower right side surface (pin moving portion) 16d of the lever 16 is positioned at the rearmost end position, the lever engagement pin 14d that abuts on one end (front end on the left side of the drawing) of the rotation angle restricting hole 2d. If it is set so that it is in contact or in the vicinity thereof, the lever 16 can be engaged with the lever engaging pin 14d as shown in FIG. As shown in FIG. 10, the lever engaging pin 14d can be moved in the counterclockwise direction C by swinging the lever 16 in the engaged state. Along with this, the lock member 14 rotates counterclockwise (the direction opposite to B), and the lock plate 12 rotates counterclockwise A by the return spring 13 as shown by the broken line in FIG. Is in a state where it can be pulled out (unlocked), and the spring engaging portion 12e comes into contact with the stopper 2f, and the rotation of the lock plate 12 stops at the unlock position. At this time, as shown in FIG. 11, the return portion 12 d of the lock plate 12 appears in the lock groove 11 to make the bottom of the lock groove 11 shallow. As a result, when the vehicle seat is returned to its original state by being tilted back, the return portion 12d is pushed upward by the striker 96 to resist the rotational force in the counterclockwise direction A by the return spring 13, and the lock plate 12 is Rotate forward in the direction (opposite direction A), the striker 96 does not come out of the lock part 12b, that is, the lock plate 12 is returned to the locked position, and the locking part 12c is returned to the position where it engages with the locked part 14b. Then, the lock plate 12 is stopped at the lock position.
[0030]
Therefore, according to the present embodiment, the lock member 14 provided on the lower channel 2 side and the lever 16 provided on the upper channel 3 side are such that the lever 16 is the lock member 14 when the upper channel 3 is at the rearmost position. Is engaged with the lever engaging pin 14d, and is separated when in the other sliding position. Therefore, even when the lever for pulling up 95 is pulled and the lever 16 is swung in the clockwise direction C via the wire 18 when the lever 16 is not at the rearmost position, the lever 16 is not engaged with the lever engaging pin 14d and is in an idle state. Will swing. Therefore, a means for sensing that the upper channel 3 is located at the rearmost position is unnecessary, and the cost can be reduced. Further, when the upper channel 3 is at the rearmost position, if the jumping lever 95 is pulled, the lever 16 swings clockwise C so that the striker 96 is unlocked, and the rotation angle of the lock member 14 That is, the lock member 14 on the lower channel 2 side and the lever 16 on the upper channel 3 side are engaged, and the manual operation means 17 (the wire 18 and the lever 95) for swinging the lever 16 is the upper. Since it is provided on the rear seat 90 that slides together with the channel 3, one end of the wire 18 provided on the upper channel 3 side may be connected to the lever 16 on the same upper channel 3 side, in other words, the upper channel 3 and the lower channel. 2 to secure the slide of the upper channel 3 Since 18 is not necessary to wire in a state in which slack, caught in the members such as the surrounding sheet is prevented, it can improve the reliability of the seat slide.
[0031]
In the present embodiment, as shown in FIG. 9, a shaft 2c attached to the lower channel 2 and rotatably supporting the lock member 14, and a shaft attached to the upper channel 3 and pivotally supporting the lever 16 are supported. 15a is arranged so as to approach when the upper channel 3 is at the rearmost position, so that the force that pulls the jumping lever 95 to swing the lever 16 is efficiently transmitted to the rotation of the lock member 14. It becomes possible to do. Here, the approach of the shaft 2c and the shaft 15a is best to make both shaft centers of the shafts 2c and 15a coincide with each other in order to reduce the pulling force of the lever 95 for raising, but the lock member 14 The pull-up lever 95 required for the rotation of the lever 95 does not have a large pulling force, and is in a close proximity within a range in which a convenient lever pulling force can be ensured, for example, the shaft 2c and the shaft 15a overlap each other as in this embodiment. It may be in the state of being close.
[0032]
In the above-described embodiment, the present invention is applied to a rear seat with a plurality of people. However, the invention is not limited to this, and may be applied to each of the rear seats with a single seat. It is also possible to apply to all types in which the seat cushion is moved forward together with the lower channel.
[0033]
【The invention's effect】
As described above in detail, in the case of the present invention, the lock member provided on the lower channel side and the lever provided on the upper channel side are connected to the lever member of the lock member when the upper channel is at the rearmost position. It engages with the joint and is divided when it is in another slide position. Therefore, even if the lever is swung by operating the manual operation means when it is not at the rearmost position, the lever does not engage with the lock member and swings in an idle state. Therefore, a means for sensing that the upper channel is located at the rearmost position is unnecessary, and the cost can be reduced. Further, when the manual operation means is operated when the upper channel is at the rearmost position, the lever swings and the lock member rotates so that the striker is unlocked, that is, the lock member and the upper on the lower channel side. Since the lever on the channel side is engaged and the manual operation means for swinging the lever is provided on the seat that slides with the upper channel, there is no need to provide a slack for securing the slide of the upper channel. As a result, it is possible to prevent catching on members around the seat, and to improve the reliability of the seat slide. Further, since the first shaft that rotatably supports the lock member and the second shaft that rotatably supports the lever approach each other at the rearmost position, the lever is swung by pulling the manual operation portion. The force can be efficiently transmitted to the rotation of the lock member.
[Brief description of the drawings]
FIGS. 1A to 1D are views (outside perspective views) for explaining a storing operation of a rear seat of a vehicle to which a slide mechanism according to an embodiment of the present invention is applied.
FIG. 2 is a front view showing a slide mechanism according to the present embodiment, which is applied to the rear seat of FIG.
3 is a left side view showing an upper portion of the slide mechanism of FIG. 2;
4 is an external perspective view showing a locking means that is a main part of the present invention shown in FIG. 2. FIG.
5 is an exploded perspective view showing a locking means of the main part of the present invention shown in FIG.
6 is a schematic view showing a part of the manual operation means constituting the locking means of FIG. 5. FIG.
FIG. 7 is a front view showing a mounting state of a lock plate, a lock member, and a lever constituting a lock means that is a main part of the present invention.
FIG. 8 is a front view showing the relationship among the lock plate, the lock member, and the lever when the seat is positioned in front of the rear end position.
FIG. 9 is a front view showing the relationship between the lock plate, the lock member, and the lever when the sheet is located at the rearmost position.
FIG. 10 is a front view showing another relationship between the lock plate, the lock member, and the lever when the sheet is located at the rearmost position.
FIG. 11 is a front view showing the relationship between the lock plate and the lock groove when returning the forwardly moved sheet.
[Explanation of symbols]
1 Slide mechanism 2 Lower channel 2c axis (first axis)
3 Upper channel 9 Car body 10 Locking means 11 Lock groove 12 Lock plate 12b Lock part 13 Return spring 14 Lock member 14d Lever engagement pin (lever engagement part)
15 Bracket 15a axis (second axis)
16 Lever 17 Manual operation means 18 Wire 20 Second return spring 90 Rear seat 95 Bounce lever (hand operation part)
96 striker

Claims (1)

A lower channel attached to the vehicle body so as to be able to be moved forward, and an upper channel slidably engaged with the lower channel and to which a vehicle seat is attached, and only when the upper channel is slid to the rearmost position A vehicle seat slide mechanism comprising locking means that can be unlocked with respect to the striker provided on the striker ,
The locking means is
A lock plate attached to the lower channel so as to be able to rotate forward and reverse, and having a lock portion that locks the striker during forward rotation and unlocks the striker during reverse rotation;
A return spring for applying a reverse force to the lock plate;
A lock member rotatably mounted on the lower channel and stopping the lock plate at the lock position;
A lever that is swingably provided in the upper channel, and engages with a lever engaging portion provided in the lock member when the upper channel is at the rearmost position to release the stop state of the lock plate stopped at the lock position. When,
Provided on the vehicle seat, and comprising manual operation means for swinging the lever ,
A first shaft that is attached to the lower channel and rotatably supports the lock member, and a second shaft that is attached to the upper channel and supports the lever so as to be swingable are when the upper channel is at the rearmost position. A vehicle seat slide mechanism, wherein the slide mechanism is arranged so as to approach .

Images