JP5780138B2 - Sliding device for vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat slide device.

  Conventionally, when the lower rail of the passenger seat that is the first vehicle seat and the lower rail of the second row seat that is the second vehicle seat are combined, There is already known a vehicular seat slide device capable of sliding the front passenger seat largely from the front slide lock region to the second row slide lock region. In such a sliding device, when the slid passenger's seat reaches the boundary between both lock areas (the front slide lock area and the second row slide lock area), an auxiliary lock mechanism that once regulates the slide Is provided. Accordingly, it is possible to prompt the passenger in the second row seat to be alerted so that the slid passenger seat does not interfere with the passenger in the second row seat. Here, Patent Document 1 below discloses a technique in which the auxiliary lock mechanism is configured by a stopper that can be attached to and detached from the lower rail. Thereby, the auxiliary lock mechanism can be operated with a simple structure.

Patent No.3400066

  However, in the technique of Patent Document 1 described above, since the stopper can be attached to and detached from the lower rail, the usability of the auxiliary lock mechanism is poor.

  The present invention is intended to solve such a problem, and an object of the present invention is to further improve the vehicle seat that has reached the boundary between both lock regions when the vehicle seat is slid so as to straddle both lock regions. Even a vehicle seat slide device provided with an auxiliary lock mechanism for once restricting the slide is provided with improved usability of the auxiliary lock mechanism.

The present invention is for achieving the above object, and is configured as follows.
According to the first aspect of the present invention, there is provided a lower rail assembled on the vehicle floor side, a first vehicle seat slidably assembled to the lower rail, each upper rail of the second vehicle seat, and a first for the lower rail. A lock mechanism that can lock the slide of the upper rail of the vehicle seat with a slide lock pawl, and the lock mechanism is unlocked by operating a handle provided on the lock mechanism, and the slide of the upper rail of the first vehicle seat relative to the lower rail is performed. The lock position can be adjusted, and the upper rail of the first vehicle seat extends over the slide lock region of the upper rail slide of the first vehicle seat and the slide lock region of the upper rail slide of the second vehicle seat. When sliding, the upper of the first vehicle seat that has been slid When the rail reaches the boundary between the two lock regions, the vehicle seat slide device includes an auxiliary lock mechanism capable of restricting the sliding of the upper rail of the first vehicle seat with respect to the lower rail. A stopper plate provided on the lower rail and a first pivoting portion pivotally pivoted on the upper rail side, which is set at the boundary between the two lock regions, and can abut against the abutting portion of the slide lock claw A link bar and a stopper link that is pivotally attached to a second pivoting portion different from the first pivoting portion of the link rod and that has one end that can come into contact with the stopper plate. When the upper rail of the first vehicle seat that has been slid by unlocking the mechanism reaches the boundary between the two lock regions, the link rod comes into contact with the abutment portion of the slide lock claw, so that the stopper ring Is held at a height position where it comes into contact with the stopper plate, and this holding state is resolved by releasing the handle operation and releasing the contact between the contact portion of the slide lock claw and the link rod. It is the structure characterized by this.
According to this configuration, the first vehicle seat is greatly slid from the lock region of the upper rail slide of the first vehicle seat toward the lock region of the upper rail slide of the second vehicle seat by raising the handle. When the first vehicle seat reaches the boundary between the two areas, the auxiliary lock mechanism is switched to the locked state even when the lock mechanism is in the unlocked state. The slide can be regulated. Therefore, it is possible to urge the occupant of the second vehicle seat to be alerted as in the prior art. In order to return the auxiliary lock mechanism from the locked state to the unlocked state, it is only necessary to raise the handle again after returning the handle. Therefore, compared with the prior art, since a member to be attached or detached is not required, the usability of the auxiliary lock mechanism can be improved.

The invention according to claim 2 is the vehicle seat slide device according to claim 1, wherein the link bar is a first link and a second link, and the second link is the first link. It is possible to rotate with respect to the link, and it is biased to be positioned at a predetermined position.
According to this configuration, the stopper link moves downward again at the end point of the boundary between the two lock regions, but the second link rotates relative to the first link, so that the auxiliary lock mechanism The interference can be avoided and the design can be made compact.

FIG. 1 is a diagram illustrating an internal configuration of a vehicle to which a passenger seat slide device according to an embodiment of the present invention is applied. FIG. 2 is an exploded perspective view of the slide device of FIG. FIG. 3 is a schematic diagram of the auxiliary lock mechanism of the passenger seat in FIG. 1 and shows a state in which the passenger seat is locked in the lock area of the front slide. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a diagram in which the handle is switched from the state shown in FIG. 3 to the unlocked state by operating the handle, and the passenger seat is slid toward the lock region of the slide of the second row seat. FIG. 6 is a diagram in which the passenger seat is further slid toward the lock area of the slide of the second row seat from the state shown in FIG. FIG. 7 is a diagram in which the passenger seat is further slid from the state shown in FIG. 6 toward the slide lock region of the second row seat. 8 is a cross-sectional view taken along line VIII-VIII in FIG. FIG. 9 is a diagram illustrating a state in which the passenger seat is further slid toward the lock region of the slide of the second row seat from the state illustrated in FIG. 8 and the slide of the passenger seat is regulated in the intermediate region. FIG. 10 is a diagram illustrating a state in which the operation of the handle is returned from the state illustrated in FIG. 9 to return the lock mechanism to the locked state. FIG. 11 is a diagram in which, from the state shown in FIG. 10, the handle is operated again to switch the lock mechanism to the unlocked state, and the passenger seat is slid toward the lock region of the second row seat slide. It is a figure which shows the state before a 2nd link gets over the flange of a slide lock nail | claw. FIG. 12 is a diagram showing a state in the middle of the second link getting over the slide lock claw flange from the state shown in FIG. 11. FIG. 13 is a view showing a state in which the second link has climbed over the flange of the slide lock claw from the state shown in FIG. 12, and shows a state in which the passenger seat is locked in the lock region of the slide in the second row. FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In the following description, “passenger seat 1” will be described as an example of “first vehicle seat”. Similarly, the “second row seat 101” will be described as an example of the “second vehicle seat”. In the following description, the terms “up”, “down”, “front”, “rear”, “left” and “right” refer to the directions of “up”, “down”, “front”, “rear”, “left” and “right” described in the above-mentioned figures. The direction of up, down, front, back, left and right is shown.

  First, with reference to FIGS. 1-4, the sliding apparatus 2 of the passenger seat 1 which concerns on the Example of this invention is demonstrated. The slide device 2 includes a pair of slide rails 3, a lock mechanism 4, and an auxiliary lock mechanism 5. Hereinafter, the pair of slide rails 3, the lock mechanism 4, and the auxiliary lock mechanism 5 will be described individually.

  First, the pair of slide rails 3 will be described. The pair of slide rails 3 includes a pair of lower rails 10 and a pair of upper rails 20 that are slidably assembled to the pair of lower rails 10. The pair of lower rails 10 and the pair of upper rails 20 are only shown on the outer side in each drawing. The pair of lower rails 10 are respectively fixed to the vehicle floor F. On the other hand, this pair of upper rails 20 is also fixed to a cushion frame (not shown) of the seat cushion 1 a of the passenger seat 1.

  With this slide rail 3, the passenger seat 1 can be slid back and forth with respect to the vehicle floor F. The pair of lower rails 10 also serves as that of the second row seat 101 (lower rail), as is apparent from FIG. That is, the pair of lower rails 10 is shared by the passenger seat 1 and the second row seat 101. Accordingly, if the second row seat 101 is largely slid rearward, the passenger seat 1 can also be largely slid rearward (in FIG. 1, the passenger seat 1 is imagined from the state (A) indicated by a solid line). It can be slid to the state shown by line (C)). The pair of slide rails 3 is configured in this way.

  Next, the lock mechanism 4 will be described. The lock mechanism 4 includes a loop-shaped handle (not shown) and a slide lock claw 22 connected to the handle. The handle is composed of a lever member that can be directly raised by an occupant. On the other hand, the slide lock claw 22 is constituted by a claw member whose tip can be inserted into the engagement hole 12 of the lower rail 10 and the engagement hole 24 of the upper rail 20.

  The slide lock claw 22 is pivotally attached to the upper rail 20 while being urged in the insertion direction. When the tip of the slide lock claw 22 is inserted into the engagement hole 12 of the lower rail 10 and the engagement hole 24 of the upper rail 20 (when the state shown in FIGS. 3 to 4 is reached), the slide of the passenger seat 1 is locked. It becomes a state (locked state of the lock mechanism 4).

  When the handle is raised against the urging force acting on the slide lock claw 22 from this locked state, the slide lock claw 22 rotates so as to eliminate the insertion of the tip (in FIG. The slide lock claw 22 rotates in the rotation direction). Thereby, the slide of the passenger seat 1 is switched to the unlocked state (the unlocked state of the lock mechanism 4). When the handle that has been raised is returned, the rotation of the slide lock claw 22 is also returned, so that the slide of the passenger seat 1 is also returned to the locked state.

  A plurality of engagement holes 12 of the lower rail 10 are formed along the sliding direction of the passenger seat 1. Thereby, the passenger seat 1 can be locked at a desired slide position. This description corresponds to “adjusting the slide lock position” described in the claims. Of the plurality of engagement holes 12 formed, the one corresponding to the lock region of the front slide (usually the slide lock region used by the passenger seat 1) is attached to the engagement hole 12a, and the second row The one corresponding to the slide lock area (usually the slide lock area used by the second row sheet 101) is attached to the engagement hole 12b (see FIGS. 1 and 2).

  For convenience of explanation, an area between the lock area of the front slide and the lock area of the slide in the second row (a portion facing the pillar of the vehicle body) will be referred to as an unlock area. Of the flanges (bent portions formed by bending) 14 in the lower rail 10, a notch 14 a is formed in the flange 14 in the unlock region.

  A stopper plate 16 is formed on the bottom surface of the unlock region among the bottom surfaces of the lower rail 10. The lock mechanism 4 includes these handles and a slide lock claw 22. The second row seat 101 is also configured to be locked at a desired slide position, like the passenger seat 1 described above.

  Finally, the auxiliary lock mechanism 5 will be described with reference to FIGS. The stopper plate 16, the first link 30, the second link 40, and the stopper link 50 are configured. The first link 30 and the second link 40 correspond to a “link bar” described in the claims. The stopper plate 16 is a restricting member that can be contacted by a stopper link 50 to be described later, and is provided in an unlocking region in the bottom surface of the lower rail 10.

  The first link 30 is a link member formed in a substantially L shape having a long hole 32 on one end side, and a pin P1 (first pivot attachment) so that the substantially L-shaped bent portion forms a rotation center. Are pivotally attached to the base plate 6 fastened to the upper rail 20 via At this time, the first link 30 is pivotally attached to the base plate 6 in a state of being biased in the direction of arrow A in FIG. 3 via a biasing member (for example, a torsion spring not shown). The rotation of the first link 30 pivoted in this way is always regulated by the contact of the flange 52 of the lower rail 10 with 52 formed on a stopper link 50 described later.

  The second link 40 is a link member formed in a substantially I-shape, and is pivotally attached to the other end side of the first link 30 via a pin P2 so that one end side thereof forms a rotation center. At this time, the second link 40 is biased in the direction of arrow B in FIG. 3 via a biasing member (for example, a torsion spring, not shown), and the other end side of the first link 30. It is pivotally attached to. The rotation of the second link 40 pivoted in this way is always restricted by the stopper 34 formed on the first link 30.

  The stopper link 50 is a link member formed in a substantially crank shape having a pin 52 on one end side, and the first link is provided via a pin P3 (second pivot portion) so that the other end side forms a rotation center. It is pivotally attached to 30 long holes 32. At this time, the stopper link 50 is pivotally attached to the long hole 32 of the first link 30 while being inserted into the guide hole 26 formed in the upper rail 20. The auxiliary lock mechanism 5 includes the stopper plate 16, the first link 30, the second link 40, and the stopper link 50.

  Next, with reference to FIGS. 1 and 3 to 12, the operation of the slide device 2 including the pair of slide rails 3, the lock mechanism 4, and the auxiliary lock mechanism 5 will be described. In the following description, the passenger seat 1 is described as being locked in the lock area of the front slide (in FIG. 1, the passenger seat 1 is shown by the solid line (A) and the state shown in FIG. 3). I will do it.

  First, the occupant performs an operation of causing the steering wheel from a state in which the passenger seat 1 is locked in the lock area of the front slide. Then, as already described, the lock mechanism 4 is switched from the locked state to the unlocked state. Thereby, the passenger | crew can slide the passenger seat 1 back. Next, the occupant performs the operation of sliding the passenger seat 1 rearward with the handle raised (see FIG. 5).

  When the pin 52 of the stopper link 50 reaches the inclined side 14a1 of the notch 14a of the lower rail 10 by this sliding, the first link 30 rotates while raising the stopper link 50 by the urging force acting on the first link 30 itself. (Refer to FIG. 6, in FIG. 6, the first link 30 rotates counterclockwise). Further, when the passenger seat 1 is slid rearward, the second link 40 is also rotated together with the first link 30 (see FIG. 7). It contacts the flange 22a (contact portion) of the slide lock claw 22 (see FIG. 8). By this contact, even if the passenger seat 1 is further slid rearward, the stopper link 50 is held at a height position at which one end side thereof contacts the stopper plate 16 of the lower rail 10.

  Further, when the passenger seat 1 is slid rearward, one end side of the stopper link 50 comes into contact with the stopper plate 16 of the lower rail 10, and thus further rearward sliding of the passenger seat 1 is restricted ( In FIG. 1, the passenger seat 1 is shown by an imaginary line (B) and the state shown in FIG. 9). This restricted state is referred to as a locked state of the auxiliary lock mechanism 5. In this way, the rearward sliding of the passenger seat 1 is once restricted at the rear end of the lock area of the front slide. When the upper rail of the first vehicle seat that has been slid reaches the boundary between the two lock regions, the description can be made that the sliding of the upper rail of the first vehicle seat relative to the lower rail can be regulated. Corresponds to “lock mechanism”.

  In order to further slide the passenger seat 1 backward from the locked state of the auxiliary lock mechanism 5, the occupant may perform the operation of causing the handle again after returning the caused handle. Then, as the handle is returned, the slide lock claw 22 is also returned to the locked state, so that the contact between the second link 40 and the flange 22a of the slide lock claw 22 is also eliminated (see FIG. 4). When eliminated in this way, the first link 30 rotates over the slide lock claw 22 counterclockwise by the biasing force acting on the first link 30 itself. Then, the first link 30 moves up until the pin 52 of the stopper link 50 reaches the top side 14a2 of the notch 14a because the position of the pin P3 has moved upward (see FIG. 10).

  Thereby, the stopper link 50 is held at a height position at which one end side thereof is prevented from contacting the stopper plate 16 of the lower rail 10. Therefore, the auxiliary lock mechanism 5 can be switched from the locked state to the unlocked state. Therefore, if the operation for causing the handle is performed again, the passenger seat 1 can be slid to the lock region of the slide in the second row. At this time, when the pin 52 of the stopper link 50 reaches the inclined side 14a1 of the notch 14a of the lower rail 10 again, the first link 30 is stopped against the urging force acting on the first link 30 itself. (See FIG. 11, in FIG. 11, the first link 30 is rotated in the clockwise direction).

  At this time, the second link 40 also rotates together with the first link 30. Therefore, the second link 40 comes into contact with the flange 22 a of the slide lock claw 22. Due to this contact, the second link 40 rotates so as to get over the flange 22a of the slide lock claw 22 against the urging force acting on the second link 40 itself (see FIG. 12, FIG. 12). 2), the second link 40 rotates counterclockwise), and the passenger seat 1 can be slid to the slide area of the second row slide. The term “get over” here refers to the first link 30 via the pin P2 even if the flange 22a of the slide lock pawl 22 interferes with the rotation of the second link 40 (see FIG. 8). When the second link 40 is rotated, the second link 30 exceeds the flange 22 a of the slide lock claw 22.

  When the passenger seat 1 is slid to a desired position (when the passenger seat 1 is slid to the state indicated by the imaginary line (C) in FIG. 1), the occupant returns the handle that has been raised, and the lock mechanism 4 What is necessary is just to perform the work which returns to the locked state. In this manner, the passenger seat 1 can be largely slid rearward from the lock area of the front slide to the lock area of the second row of slides (see FIG. 13).

  When the passenger seat 1 slid in this way is returned to the lock area of the front slide, the above-described series of operations may be performed again. Even in such a case, similarly to the above description, the forward sliding of the passenger seat 1 can be once restricted at the front end of the lock area of the slide in the second row.

  The slide device 2 of the passenger seat 1 according to the embodiment of the present invention is configured as described above. According to this configuration, when the passenger seat 1 is largely slid rearward from the lock area of the front slide toward the lock area of the slide in the second row by raising the handle, the passenger seat 1 has a boundary between these areas. , Even if the lock mechanism 4 is in the unlocked state, the auxiliary lock mechanism 5 is switched to the locked state, so that the sliding of the passenger seat 1 can be restricted. Therefore, similarly to the prior art, it is possible to prompt the passenger in the second row seat 101 to call attention. In order to return the auxiliary lock mechanism 5 from the locked state to the unlocked state, it is only necessary to cause the handle again after returning the handle. Therefore, compared to the prior art, no member or the like to be attached or detached is required, so that the usability of the auxiliary lock mechanism 5 can be improved. Further, according to this configuration, when the sliding of the passenger seat 1 is restricted at the boundary between the two regions as described above, even if the sliding of the passenger seat 1 is once returned, the passenger seat is again at the boundary between the two regions. One slide can be regulated. Therefore, the usability of the auxiliary lock mechanism 5 can be further improved.

  Further, according to this configuration, the link bar is configured by the first link 30 and the second link 40. The second link 40 is pivoted to the other end side of the first link 30 in a state of being biased in the direction of arrow B in FIG. 3 via a biasing member (for example, a torsion spring not shown). It is worn. The rotation of the second link 40 pivoted in this way is always restricted by the stopper 34 formed on the first link 30. Therefore, the stopper link 50 moves downward again at the end point of the boundary between the two lock regions, but the second link 40 rotates with respect to the first link 30, thereby The interference can be avoided and the design can be made compact.

The contents described above are only related to one embodiment of the present invention, and do not mean that the present invention is limited to the above contents.
In the embodiment, “front passenger seat 1” has been described as an example of “first vehicle seat”, and “second row seat 101” has been described as an example of “second vehicle seat”. However, the present invention is not limited to this. Even if the “first vehicle seat” is the “second row seat” and the “second vehicle seat” is the “third row seat”, I do not care. Similarly, the “first vehicle seat” may be the “second row seat” and the “second vehicle seat” may be the “passenger seat”.

1 Passenger seat (first vehicle seat)
2 Slide device 4 Lock mechanism 5 Auxiliary lock mechanism 10 Lower rail 16 Stopper plate 20 Upper rail 22 Slide lock claw 22a Flange 30 First link 40 Second link 50 Stopper link 52 Long hole 101 Second row seat (for second vehicle) Sheet)
F Vehicle floor

Claims (2)

A lower rail assembled to the vehicle floor,
Each upper rail of the first vehicle seat and the second vehicle seat slidably assembled to the lower rail;
A lock mechanism capable of locking the slide of the upper rail of the first vehicle seat relative to the lower rail with a slide lock claw;
When the handle provided on the lock mechanism is operated, the lock mechanism is unlocked and the lock position of the slide of the upper rail of the first vehicle seat relative to the lower rail can be adjusted.
When the upper rail of the first vehicle seat is slid so as to straddle the lock region of the slide of the upper rail of the first vehicle seat and the lock region of the slide of the upper rail of the second vehicle seat, the first slide is made. When the upper rail of the vehicle seat reaches the boundary between the two lock regions, the vehicle seat slide device includes an auxiliary lock mechanism that can regulate the sliding of the upper rail of the first vehicle seat with respect to the lower rail,
The auxiliary lock mechanism
A stopper plate set on the lower rail and set on the boundary between both lock regions;
A link rod having a first pivotally pivotally pivotally mounted on the upper rail side and capable of abutting against the abutment portion of the slide lock claw;
A stopper link that is pivotally attached to a second pivoting portion different from the first pivoting portion of the link bar, and has one end portion that can come into contact with the stopper plate;
When the upper rail of the first vehicle seat that has been slid by operating the handle to unlock the lock mechanism reaches the boundary between the two lock regions, the link bar comes into contact with the contact portion of the slide lock claw, One end of the stopper link is held at a height where it contacts the stopper plate,
The vehicle seat sliding device according to claim 1, wherein the holding state is canceled when the handle operation is returned to cancel the contact between the contact portion of the slide lock claw and the link rod. The vehicle seat slide device according to claim 1,
The link rod is composed of a first link and a second link, and the second link is rotatable with respect to the first link and is biased to be positioned at a predetermined position. A vehicle seat slide device.

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