JP3142204B2 - Vehicle seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat provided with a seat adjuster, which is provided mainly on the rear side of a driver's seat to improve passengers' getting on and off and increase the load space for luggage. For sheet.

[0002]

2. Description of the Related Art A vehicular seat provided behind a driver's seat of a vehicle can maintain a good occupant getting on and off by increasing a distance between the front seat and a front seat. The space between the rear cargoes can be made large by making the interval between them small. For this reason, a relatively large sliding amount is secured by supporting the vehicle seat mounted on the rear side from the driver's seat by the seat adjuster so as to be relatively slidable in the front-rear direction and the seat cushion being flipped up, This makes it possible to ensure the ability to get on and off the passengers in a timely manner and to secure a large luggage loading space. By the way, the vehicle seat supported on the floor of the vehicle by the seat adjuster 1 is:
As shown in FIG. 11, the apparatus is provided so as to be slidable between a slide adjustment area A including a fine adjustment area A where slide lock and unlock can be released and a feed movement area B where slide lock cannot be performed and cannot be seated on the way. You.

A mounting position X of a seat belt anchorage is set on such a vehicle seat. In this case, the allowable range E that is acceptable mounting position X of the seat belt anchorage by a sliding lockable fine adjustment zone A between the rear seating position P ₁ and the leading edge sitting position P ₂ is restricted by law I have. For this reason, the width and sheet characteristics of the fine adjustment area A and the feed movement area B in the sliding area C are restricted when the mounting position X falls within the area of the allowable area E. That is,
Assuming that the rear seat S including the seat cushion 37 and the seat back 38 shown in FIG. 11 enables seating in the feeding movement area B, the allowable area E1 which is an area regulated by the law is narrowed to the lower side of the floor 40. Subject to regulations. When the allowable range E1 is determined in this way, it becomes difficult to set the mounting position X of the seat belt anchorage within the allowable range E1. Therefore, here, suppose an allowable area E that is restricted only by the fine adjustment area A in which the seat can be seated, regardless of the feed movement area B in which the seat cannot be seated. Anchorage mounting position X
To accommodate.

The seat cushion 37 is pivotally attached to the seat bracket 20 integral with the upper rail via a horizontal pin (not shown), and the seat cushion 37 is pivoted to the seating position a and the seatback 38 side from the seating position a. The seat back can be supported at the moved flip-up position (indicated by the two-dot chain line in FIG. 11) b so that the seat back can be locked and released. Incidentally, such a rear seat S requires a seat lock and release mechanism at a seating position of a seat cushion in addition to a slide lock and release mechanism. For example, Japanese Patent Publication No. 6-481 discloses a first operation handle and a second operation handle. A technique is disclosed in which two handles of two operation handles are individually operated to perform a slide lock and release operation and a seat lock and release operation.

[0005]

[Problems to be Solved by the Invention]
The folding mobile sheet disclosed in 481 JP total
Fine adjustment for all sliding areas with slide lock and unlock
In the area A, the first operation handle is operated to lock and release the seat in this area, and the second operation handle is operated to lock and release the slide . But this
In the case of, the feed movement area B where seating is impossible and the fine adjustment area A are divided.
The slide range is provided when switching between the two slide ranges.
No restriction and release operation is performed, and
Functionalization is not possible, and improvement of operability in that case is also expected.
It is rare. Further, in such a vehicle seat, FIG.
As shown in FIG. 2, it is also desired that the seat S be rotated R around the center of rotation P to improve the getting on / off property and to diversify the use of the seat with the seat facing backward. For this reason, it is also desired to improve the operation of locking and releasing the rotation of the vehicle seat in accordance with the operation of restricting and releasing the sliding range of the vehicle seat and the operation of locking and releasing the seat. It is a first object of the present invention, the sheet vinegar
An object of the present invention is to provide a vehicle seat capable of improving operability by interlocking a ride range restriction and release operation with an operation of releasing and locking a seat cushion.

A second object of the present invention is to provide a vehicle seat capable of improving operability by interlocking the operation of switching the rotational position of the seat cushion with the operation of restricting and releasing the sliding range of the seat. A third object is to link the operation of regulating and releasing the sliding range of the seat with the operation of releasing and locking the seat cushion of the seat cushion,
At the same time, the operation of switching the rotational position of the seat cushion,
Linking the slide range restriction and release operation of the sheet,
An object of the present invention is to provide a vehicle seat capable of improving operability. A fourth object of the present invention is to provide a vehicle seat according to the second and third aspects of the present invention, in which the operation of releasing the restriction on the sliding range of the seat can be performed at a rotational position where the seat is facing forward. It is in.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a first aspect of the present invention is to provide a vehicle seat provided with a flippable seat cushion and a seat slide mechanism. An upper rail slidably engaging on the lower rail, a seat cushion mounted on the upper rail side, an engaging member provided on a side portion of the seat cushion, and an upper rail mounted on the upper rail side; Regulating means having a slide lock plate projecting to the lower rail side, and a rail lock plate for restricting the movement of the seat by abutting on the slide lock plate. The engagement member abuts on the regulating means and the slide lock press The door is displaced to the upper rail side, characterized in that the releasable sliding range restricting of the seat cushion by avoiding contact with the slide lock plate and the rail lock plate.

According to a second aspect of the present invention, there is provided a vehicle seat provided with a rotation mechanism of a seat cushion and a seat slide mechanism, a lower rail mounted on a vehicle floor, and an upper rail slidably engaged on the lower rail. A lower rotating disk attached above the upper rail, an upper rotating disk pivotally supported by the lower rotating disk and supporting a seat cushion, a first opening provided in the lower rotating disk, and the upper rotating disk. A second opening provided;
When the seat lock slides on the lower rail and abuts on the rail lock plate, the first opening and the second opening are separated from each other by the rail lock plate provided on the lower rail side. A rotation lock plate that can be inserted into the first opening and the second opening only when they match with each other is provided.

According to a third aspect of the present invention, there is provided a vehicle seat having a flip upable seat cushion, a rotation mechanism of the seat cushion, and a seat slide mechanism, a lower rail attached to a vehicle floor, and sliding on the lower rail. An upper rail movably engaged, a lower rotary disk mounted above the upper rail, an upper rotary disk pivotally supported by the lower rotary disk and supporting a seat cushion;
A first opening provided in the lower rotating disk, a second opening provided in the upper rotating disk, a rail lock plate provided on the lower rail side, and the seat cushion are arranged with respect to the lower rail. When sliding and abutting on the rail lock plate, the first opening and the second opening are connected only when the first opening and the second opening coincide with each other. A rotation lock plate that can be inserted, and when the seat cushion is flipped up, the engaging member abuts on the regulating means to displace the slide lock plate toward the upper rail, and the slide lock plate and the rail The slide range restriction of the seat cushion can be released by avoiding contact with the lock plate. Claim 4
The present invention is directed to any one of claims 2 to 3.
In a vehicle seat, the seat is facing forward
Only when the first opening and the second opening
It is characterized by matching .

[0010]

According to the first aspect of the present invention, when the seat cushion is located at the seating position, the upper rail on the seat cushion side can slide on the lower rail, and the slide lock plate on the upper rail side abuts the rail lock plate on the lower rail side. Accordingly, when the seat cushion is located at the flip-up position, the engaging member on the seat cushion side abuts the restricting means to displace the slide lock plate toward the upper rail, thereby controlling the slide lock plate. By avoiding the contact between the rail lock plate and the rail lock plate, the slide after the contact of the seat lock side with the rail lock plate is allowed. Further, when the rotation lock plate does not abut against the rail lock plate, the upper rotating disk on the seat cushion side is pivotally supported so as to be relatively rotatable with respect to the lower rotating disk on the upper rail side. Allows sliding on the lower rail, and when the rotation lock plate abuts against the rail lock plate, rotates only when the first opening of the lower rotating disk and the second opening of the upper rotating disk coincide with each other. The lock plate rotates and is inserted into the first opening and the second opening to regulate the rotation of the upper rotating plate on the seat cushion side and to slide the seat cushion side after contacting the rail lock plate. Will be tolerated.

Further, according to the invention of claim 3, when the seat cushion is located at the seating position, the upper rail on the seat cushion side can slide on the lower rail, and the slide lock plate on the upper rail side is brought into contact with the rail lock plate on the lower rail side. When the seat cushion is located at the flip-up position, the engaging member on the seat cushion abuts on the restricting means to displace the slide lock plate toward the upper rail, thereby causing the slide to move. By avoiding the contact between the lock plate and the rail lock plate, it is possible to slide after the rail lock plate abuts on the seat cushion side,
At the same time, if the rotation lock plate does not abut on the rail lock plate, the upper rotating plate on the seat cushion side is pivotally supported so as to be rotatable relative to the lower rotating plate on the upper rail side and the upper rail slides on the lower rail. When the rotation lock plate abuts on the rail lock plate, the rotation lock plate rotates only when the first opening of the lower rotation disk and the second opening of the upper rotation disk coincide with each other. Thus, it is inserted into the first opening and the second opening to restrict the rotation of the upper rotating plate on the seat cushion side and allow the seat cushion to slide after the rail lock plate abuts.

Further, the invention according to claim 4 is the vehicle seat according to claims 2 and 3, wherein when the rotation lock plate abuts against the rail lock plate, the seat is only in a state of facing forward. When the first opening of the lower turntable coincides with the second opening of the upper turntable, the rotation lock plate rotates and is inserted into the first opening and the second opening, and the seat The rotation of the upper rotating disk on the cushion side is restricted, and the sliding on the seat cushion side after contact with the rail lock plate is permitted.

[0013]

FIG. 1 shows a vehicle seat according to the present invention.
The vehicle seat S1 is provided in a one-box car (not shown) and forms a rear seat for passengers behind the driver's seat, and a space for loading luggage is secured behind the seat S1. This vehicle seat S1 has a sliding area C extending over a fine-adjustment area A in which a slide lock can be made in the same manner as the seat S shown in FIGS. The components are provided so as to be movable between them, and here, the same members are denoted by the same reference numerals, and redundant description will be omitted. The vehicle seat S1 (see FIGS. 6 and 7) includes a seat adjuster 1a supported by the floor 40, a seat rotating device 80 supported by the seat adjuster 1a, and a seat bracket 20a supported by the seat rotating device 80.
And a seat cushion 37 and a seat back 38 supported by the seat bracket 20a.

As shown in FIG. 2, the seat adjuster 1a supported on the floor 40 has a pair of left and right lower rails 10a.
1 and 102; left and right upper rails 901 and 902 which relatively slide along the lower rails 101 and 102; a crossbar 7 for integrally connecting the left and right upper rails 901 and 902; It is composed of The pair of lower rails 101 and 102 are respectively rail sections 101-1 and 102-1 having a U-shaped cross section.
And side plate portions 101-2 and 102-2 (FIG. 5) integrally connected along the longitudinal direction of the rail portions 101-1 and 102-1.
(A) and (b)) and the side plates 101-2 and 102-.
Rail lock plate 101 bent at the front of 2
-3, 102-3 (see FIGS. 5C and 5D). These are front connection pieces 2a welded to the front end, middle and rear ends of the rail portions 101-1 and 102-1 respectively.
It is fixed to the floor 40 via the intermediate piece 2b and the rear end piece 2c. Here, the rail lock plates 101-3, 102
-3 is provided continuously to the feed moving area B in the sliding area C in the longitudinal direction of the pair of lower rails 101 and 102. As shown in FIGS. 5 (c) and 5 (d), each of the rail lock plates 101-3 and 102-3 is brought into contact with a slide lock plate 60 and a rotation lock plate 62 described later held at the protruding positions e1 and f1. When the slide lock plate 60 and the rotation lock plate 62 are rotationally displaced, each rail lock plate 101
-3 and 102-3 are formed at a height h1 that allows the upward movement.

The left and right upper rails 901 and 902 are formed by bending the front and rear portions 4 and 5 in the shape of a section L.
The left and right vertical pieces of the crossbar 7 are integrally connected to the intermediate portions of the front and rear portions 4 and 5. In addition, the front and rear portions 4 and 5 integrally have an upward bolt 10 attached to the upper wall thereof, and a sliding vertical plate 901-1 (FIG. 1) having the vertical wall pivotally supporting the roller 6 (see FIG. 1).
(Only the sliding vertical plate of the left upper rail is shown). The lower rotating disk 11 is placed on the upper walls of the front and rear parts 4 and 5, and the upper walls of the front and rear parts 4 and 5 and the lower rotating disk 11 are fastened and connected by upward bolts 10. An upwardly extending center pin 8 protrudes from the center of the crossbar 7 integral with the left and right upper rails 901 (only the left rail is shown in FIG. 1). A center bolt 74 for attaching the plate 42 (see FIG. 3) is formed to be screwed. Note that reference numeral 41 in FIG.
A compression spring indicated by a circle is loosely fitted to the center pin 8 and presses and biases the rotation position regulating plate 42 upward.

The sheet rotating device 80 includes a lower rotating disk 11 fixed to the left and right upper rails 901 and 902 and an upper rotating disk 12 mounted on the lower rotating disk 11 so as to be superimposed thereon.
Between the lower turntable 11 and the upper turntable 12,
A low friction plate 48 for smoothly performing a relative displacement between the two,
A rotation position regulating plate 42 that is superimposed on the upper rotating disk 12, a stopper 45 that regulates the displacement of the rotating position restricting plate 42, and a pair of rotation position regulating means 49, 50 provided on the periphery of the upper rotating disk 12. It is composed of

The lower rotary disk 11 has a substantially disk shape, and has a flat portion 112 around a central hole 113, an annular portion 114 around the flat portion 112, and a flange 115 around the annular portion 114.
Are successively formed. Round holes 13 are formed at four places of the flange 115, and the upward bolts 10 of the front and rear portions 4 and 5 are fitted into the round holes 13 and fastened and fixed. Further, a lower receiving portion 111 is formed on a part of the flange 115, and a slide lock plate 60 described later is pivotally supported via a bearing 56 on a lower surface of the lower receiving portion 111. Five screw holes 43 are formed around the edge of the central hole 113 in the plane portion 112, and a bolt through which the rotation position regulating plate 42 and the stopper 45 penetrate is screwed into the same. A slit 70 as a first opening is formed on the annular portion 114 at a position facing the right lower rail 102, and an L-shaped bracket 75 and a pin 63 are provided on the lower surface of the flat portion 112 near the slit 70. Thus, the rotation lock plate 62 is pivotally supported. The upper end 66 of the rotation lock plate 62 is provided to face the slit 70, and the lower end 64 of the rotation lock plate 62 is held at a protruding position protruding to the right lower rail 102. The rotation lock plate 62 is rotationally urged to a projecting position (a lower position) by a helical spring (not shown).

The upper rotary disk 12 has a substantially disk shape, and has an inner annular portion 122 and a stepped annular portion 123 around a central hole 121.
Are formed, and the flanges 124 are sequentially and continuously formed with a step therearound. The lower surface of the inner annular portion 122 contacts the flat portion 112 via the low friction plate 48, and transmits the load on the sheet S1 to the lower upper rail. Flange 1
At four locations 24, upward bolts 14 are protrudingly arranged, and the bolts 16 are fitted with holes 16 of the fastening pieces 15 (see FIG. 4) of the seat bracket 20a, and are fastened and fixed to each other.

Further, receiving portions 12 for attaching a pair of rotation position regulating means 49, 50 are provided on the left and right portions of the flange 124.
2,123 are formed. Rotational position restricting means 49 and 50 screwed to the receiving portions 122 and 123 pivotally support the locking claws 493 and 503 via rotation pins 492 and 502 on support brackets 491 and 501 bent in a U-shape. And
Locking claws 493, 503 by a helical spring (not shown)
Is configured to be urged to rotate in the locking direction. The locking claws 493 and 503 are provided in the concave portions 421 of the rotation position regulating plate 42.
Is formed so as to be able to engage and disengage with. For this reason, one end of each of the rotating pins 492 and 502 is extended and the unlocking link mechanism 7 is extended.
6. The lock release link mechanism 76 is operated by a rotation lock release handle (not shown) so that the lock claws 493 and 493 are provided.
503 can be removed from each recess 421.

A slit 71 is formed on the stepped annular portion 123 at a position facing the right lower rail 102 as a second opening.
Is formed at a position overlapping with the slit 70 of the lower rotating disk 11 when it is at the forward position shown by the solid line in FIG. Therefore, when the lower end portion 64 of the rotation lock plate 62 is pressed when the upper turntable 12 is in the forward position shown by the solid line in FIG. 3, the upper end portion 66 can be turned into the two slits 70 and 71. is there.

The rotation position restricting plate 42 connects the boss 43 to the spring 4
At 1, it is urged upward, and the central bolt 74 prevents the detachment. Furthermore, five bolt holes 44 are formed around the boss 43.
And the flange 42 around the flat plate 423
2 and a recess 421 formed on the edge of the flange 422. The concave portion 421 has 9
Four are formed at 0 degree intervals. For this reason, the two concave portions 421 facing each other at 180 degrees form a pair of locking claws 493,5.
When the seat S1 is locked, the rotation of the seat S1 is enabled. Here, the rotation position of the seat S1 is switched at 90-degree intervals, the rotation is locked, and the unlocking link mechanism is operated by operating a rotation lock release handle (not shown). The pair of locking claws 493 and 503 are released through the opening 76 to release the rotation lock. Each fastening piece 15 is attached to the upper rotary disc 12.
The seat bracket 20a tightened through the
As shown in a front and rear connecting rod 17, 18 integral with the two clamping pieces 15 back and forth, the main part is composed of right and left base 20 _L, 20 _R, which is integrated by the longitudinal connecting rod 17, 18. A pair of pin holes 331 are respectively formed in the left and right bases 20 _L and 20 _R, and the rotation pins 33 of the seat cushion 37 are pivotally mounted in the pin holes 331. Furthermore, the right and left bases 20
The _L, 20 _R mounting holes 77 of the seat back 38 are formed. Rotating pin 33 of seat cushion 37
As shown in FIG. 6 and FIG.
Is projected from a plate 36 welded near the rear end of the
The seat cushion can be turned around 31. In addition, a cushion lock pin 34 as an engagement member is welded to the rear end of the cushion frame 35. For this reason, the seat cushion 37 is allowed to rotate around the rotation pin 33. In particular, the seat cushion 37 is moved to a seating position a as shown by a solid line in FIG. The seats are held at the flip-up position b as shown by a guide plate 30 described later so that the seat can be locked.

Here, the left base 20 _L on the upper rail side is used.
In particular, each of the pivots supporting the regulating means D is provided. That is, as shown in FIG. 4, a pin receiver 21 in the left base 20 _L pivotally supports the rotating pin 222 of the lock pin release lever 22, the pivot support hole 28 for pivotally supporting the pivot pin 29 of the guide plate 30, A fulcrum member 23 for screwing the pivot pin 25 of the lock plate 24 is formed. Here, the restricting means D includes a lock pin release lever 22 for seat-locking the cushion lock pin 34 of the cushion frame 35 at the seating position a, and the cushion frame 35 at the flip-up position b.
6 engages with the guide plate 30 for locking the seat of the cushion lock pin 34 and the guide plate pin 32 at the lower end of the guide plate 30 at the seat lock release position (the position indicated by the solid line in FIG. 6). Slide lock plate 60 held at e1 (position indicated by solid line)
A lock plate 24 for locking the guide plate pin 32 of the guide plate 30 when the seat of the cushion frame 35 at the flip-up position b (the position indicated by the solid line in FIG. 7) is locked, and an upper end of the lock plate 24 and the lock pin. Links 26 for pin-joining the lower ends of the release levers 22 respectively
It is composed of

The lock pin release lever 22, as shown in FIG. 4, (the inside of the left base 20 _L) the inner end to the pivot pin 222 which is pivotally mounted on the pin receiver 21 upper piece 221 is integrally bonded
When, formed by the operation knob 224 that is integrally coupled to the rotating end of the lower piece 223 and lower piece which is screwed to the outer end (outside of the left base 20 _L) of the rotary pin 222. In the lock pin release lever 22, the locking end 225 on the upper piece 221 locks the cushion lock pin 34 to lock the seat cushion 37 in the seating position a, and the operation knob 224 is operated in the release direction F. Then, the seat lock can be released at the seating position a. The guide plate 30 is, as shown in FIG.
Deployed on the inside of the left base 20 _L, is pivotally supported on the pivot support hole 28 via the rotary pin 29, cut 31 facing an opening in the rotation locus E of the cushion lock pin 34 is formed at the upper end, the lower end Guide plate pin 32 of the left base 2
It is arranged below the lower end of 0 _L , and is formed so as to extend outside the inside of the left base 20 _L. Lock plate 24
Engagement is deployed outside of the left base 20 _L, the lower end in the vicinity notch 27 is formed, the same cuts 27 guide plate pins 32 of the guide plate 30 to the seat locked in position b springing up the cushion frame 35 is It is formed to be combined.

When the operation knob 224 of the lock pin release lever 22 is operated in the release direction F, the lock plate 24 holding the guide plate pin 32 is locked.
6 is operated in the release direction F1 via the guide plate pin 3
2 is released, and the guide plate 30 is placed in the seating position a (FIG. 6).
The position is switched to the position shown by the solid line in FIG. This lock pin release lever 22
Indicates a seat lock direction -F by a helical spring (not shown).
The lock plate 24 is rotationally urged in the locking direction -F1, which is a clockwise direction.
As shown in FIG. 3, the slide lock plate 60 is pivotally supported on the lower surface of the lower rotating disk 11 via a bearing 56, and an inner stopper piece 59 and an outer guide piece 57 are integrally connected via a pin 55. When the outer guide piece 57 is held at the unlocked position shown by the solid line in FIG. 5, the guide plate pin 32 is engaged with the inner part of the guide groove 58, and at the same time, the stopper piece 59 is moved to the rail lock plate 101-3. Is held at the protruding position e1 which can be locked. On the other hand, when the outer guide piece 57 is held at the position shown by the solid line in FIG. 7, the guide plate pin 32 is engaged with the opening side of the guide groove 58, and at the same time, the stopper piece 59 is
It is held at the release position e2 above 01-3.

The operation of such a vehicle seat will be described. First, it is assumed that the seat S1 is in the fine adjustment area A in which the slide lock can be performed. In this case, the slide lock plate 6
0 stopper piece 59 is the rail lock plate 101-3.
, The rotation lock plate 62 does not contact the rail lock plate 102-3, and the seat adjuster 1a
The slide lock mechanism (not shown) can slide-lock the sheet S1 to a desired position in the fine adjustment area A.
At this time, the rotation lock plate 6 on the seat rotation device 80 side is used.
2 is held at a protruding position f1 where the lower end portion 64 protrudes toward the right lower rail 102. For this reason, the sheet rotating device 8
On the 0 side, rotation of the seat cushion 37 side can be operated when desired. Here, the locking claws 493, 503 are disengaged from the recesses 421 by operating a rotation lock release handle (not shown), and then the seat cushion 37 is rotated to hold the rotation lock release handle (not shown) free. When the seat cushion 37 is further rotated above, 9
After the rotation of 0 degrees, the locking claws 493 and 503
To prevent rotation.

Further, by rotating the seat cushion 37 by 90 degrees by operating a rotation lock release handle (not shown), the seat cushion can be switched and held only 180 degrees from the initial position, that is, the direction of the seat cushion can be switched to the reverse direction. By the same operation, the seat cushion side can be rotated 360 degrees, and the desired rotation position can be switched and held at 90 degrees with respect to the front direction value. That is, as shown in FIG. 10, in the fine adjustment area A, the seat cushion jumps up and the seat S
All operations of one rotation and sliding of the sheet S1 are allowed. Next, it is assumed that the seat S1 has moved from the fine adjustment area A to the feeding movement area B where seating is impossible.

In this case, the stopper piece 59 of the slide lock plate 60 comes into contact with the rail lock plate 101-3, and the sliding of the sheet S1 into the feeding movement area B is prevented. In this case, it is assumed that the operator operates the operation knob 224 in the release direction F. Then, the seat lock of the seat cushion at the seating position a is released. Subsequently, when the seat cushion is moved to the flip-up position b with the assistance of elastic force, the guide plate 30 locks the cushion lock pin 34, and the seat cushion is raised to the flip-up position b.
To hold. In conjunction with this, the guide plate pin 32 of the guide plate 30 is locked by the cut 27 of the lock plate 24, and the seat is locked at the flip-up position b of the seat cushion. At this time, in conjunction with the operation of the guide plate pin 32, the stopper piece 59 of the slide lock plate 60 is switched and held at the release position e2, and the sheet S1 can slide in the feed movement area B. On the other hand, since the lower end portion 64 of the rotation lock plate 62 is held at the protruding position f1 that protrudes from the right lower rail 102 as shown in FIG. 8, the lower end portion 64 is inclined when the sheet S1 slides into the feed movement area B. Surface 65 is rail lock plate 1
02-3 is rotated and biased.

At this time, when the upper rotary disk 12 is in the forward position shown by the solid line in FIG. 3, both slits 70 and 71 face the rotation lock plate 62 and allow the rotation thereof. The upper end 66 enters. As a result, as shown in FIG. 9, the rotation lock plate 62 reaches the release position f2, and the sheet S1 can slide in the feed movement area B. Thus, in the position b raising the seat cushion 37 is splashing only if the sheet S1 is in forward position, slid to the transfer zone B sends a sheet S1, composed can be held on the cutting edge sitting position P _2. On the other hand, it is assumed that the upper turntable 12 is not at the forward position.

In this case, the slit 7 of the upper rotary disc 12
8, the rotation lock plate 62 is not allowed to rotate, that is, the rotation lock plate 62 is not allowed to rotate, as shown in FIG. 3, the sliding of the sheet S1 into the feeding movement area B becomes impossible. In this case, the operator switches the direction of the sheet S1 forward in the fine adjustment area A in advance, causes the slit 71, the slit 70, and the rotation lock plate 62 to face each other, and then feeds the sheet S1 to the feeding movement area B. By sliding, the rotation lock plate 62 is rotated to the release position f2 as shown in FIG. 9, and the sliding of the sheet S1 to the feeding movement area B is achieved. As described above, in the feeding movement range B, the flip-up of the seat cushion is allowed only in the forward direction, and all the rotation operations of the seat S1 are blocked, and the seat S1 is prevented from rotating.
Is allowed only when the seat is facing forward and the seat cushion is flipped up.

[0030]

As described above, according to the first aspect of the present invention, when the seat cushion is located at the seating position, the seat is allowed to move until the slide lock plate comes into contact with the rail lock plate. The movement of the seat is restricted, and when the seat cushion is located at the flip-up position, the contact between the slide lock plate and the rail lock plate is avoided, and the movement after the seat lock side contact with the rail lock plate is allowed. So the sheet sla
The operability can be improved by linking the operation of regulating and releasing the guide range with the operation of locking and unlocking the seat cushion.

Further, according to the invention, before the rotation lock plate comes into contact with the rail lock plate, the seat cushion side can be relatively rotated with respect to the lower rotating plate, and can slide with respect to the lower rail. When the rotation lock plate abuts on the lock plate, if the first opening and the second opening are aligned, the rotation lock plate is inserted into both openings to restrict rotation on the seat cushion side. And at the same time , release the slide range regulation on the seat cushion side after contact with the rail lock plate, and conversely, if the first opening and the second opening do not match,
Rotation lock plate is not inserted into both the openings, the rotation lock plate is brought into contact with the rail lock plate, since restricting the sliding of the seat cushion side, the rotational position of the seat cushion switching operation and the seat sliding range regulations of
The operability can be improved by linking the control and release operations.

Further, according to the present invention, when the seat cushion is located at the seating position, the seat is allowed to move until the slide lock plate abuts on the rail lock plate, and when the abutment comes into contact, the movement of the seat is regulated. On the other hand, when the seat cushion is located at the flip-up position, the contact between the slide lock plate and the rail lock plate is avoided, and after the seat lock-side rail lock plate abuts.
Releasing the slide range restricting, at the same time, before the rail lock plate rotation lock plate abuts, lower rail to allow sliding to thereby permit relative rotation with respect to the seat cushion side of the lower rotary plate, the rail lock plate When the rotation lock plate comes into contact with the
The rotation lock plate is inserted into both of the openings only when the opening of the seat and the second opening coincide with each other to restrict rotation of the seat cushion and slide the seat cushion after the rail lock plate abuts. To allow
The operation of restricting and releasing the slide range of the seat is linked with the operation of locking and unlocking the seat, and the operation of switching the rotational position of the seat cushion and sliding the seat are performed.
The operability can be further improved by linking the range control and the release operation.

Further, the invention of claim 4 is particularly applicable to claim 2
In the vehicle seat according to any one of claims 3 to 3, when the rotation lock plate abuts on the rail lock plate, the openings are aligned only when the seat is facing forward, so that the rotation lock plate is It rotates and is inserted into both openings, restricts the rotation of the upper rotating plate on the seat cushion side and allows the seat cushion side to slide after the rail lock plate abuts, so only when the seat is facing forward Therefore, it is possible to allow the seat cushion to slide after the contact.

[Brief description of the drawings]

FIG. 1 is a cutaway side view of a main part of a vehicle seat as a first embodiment of the present invention.

FIG. 2 is a schematic perspective view of a main part of a seat adjuster of the vehicle seat of FIG. 1;

3 is an exploded schematic perspective view of the vehicle seat rotation device of FIG. 1;

FIG. 4 is a perspective view of a seat bracket of the vehicle seat shown in FIG. 1;

5A and 5B are cross-sectional views of main parts of left and right lower rails used in the vehicle seat of FIG. 1, wherein FIGS.
(C), (d) is each sectional view in the feed movement area.

FIG. 6 is an explanatory view of the state of the regulating means when the seat cushion of the vehicle seat of FIG. 1 is in a seating position.

FIG. 7 is an explanatory view of the state of the regulating means when the seat cushion of the vehicle seat of FIG. 1 is at the flip-up position.

FIG. 8 is an explanatory view of a state in which a rotation lock plate of the vehicle seat of FIG. 1 is held at a protruding position.

FIG. 9 is an explanatory view of a state in which the rotation lock plate of the vehicle seat of FIG. 1 is held at a release position.

10 is an explanatory diagram of switching of each operation mode of the vehicle seat of FIG. 1. FIG.

FIG. 11 is a schematic explanatory view of a sliding area of a vehicle seat.

FIG. 12 is a schematic explanatory view of a sliding area of the vehicle seat of FIG. 11 in a plan view.

[Explanation of symbols]

 1a Seat adjuster 101 Left lower rail 102 Right lower rail 101-3 Rail lock plate 102-3 Rail lock plate 901 Upper rail 902 Upper rail 11 Lower turntable 12 Upper turntable 20a Seat bracket 22 Lock pin release lever 24 Lock plate 26 Link 30 Guide Plate 32 Guide plate pin 34 Cushion lock pin 37 Seat cushion 40 Vehicle floor 60 Slide lock plate 62 Rotation lock plate 70 Slit 71 Slit 80 Seat rotation device A Fine adjustment area B Feed movement area C Sliding area D Restriction means S1 Seat X mounting Position a Seating position b Bounce position e1 Projection position f1 Projection position e2 Release position f2 Release position

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-81738 (JP, A) JP-A-3-235729 (JP, A) JP-A-1-123736 (JP, U) Field (Int.Cl. ⁷ , DB name) B60N 2/00-2/72 A47C 7/56

Claims (4)

(57) [Claims] 1. A vehicle seat having a flip-up seat cushion and a seat slide mechanism, a lower rail mounted on a vehicle floor, an upper rail slidably engaged on the lower rail, and an upper rail mounted on the upper rail side. A seat cushion to be provided, an engaging member provided on a side portion of the seat cushion, a restricting means having a slide lock plate attached to the upper rail side and protruding toward the lower rail side, and provided on the lower rail side. A rail lock plate for restricting the movement of the seat by contacting the slide lock plate; and in a state where the seat cushion is flipped up, the engaging member abuts on the restricting means to move the slide lock plate to the upper rail. Slide lock plate Vehicle seat, characterized in that the releasable sliding range restricting of the seat cushion by avoiding contact between the rail lock plate. 2. A vehicle seat having a seat cushion rotation mechanism and a seat slide mechanism, comprising: a lower rail mounted on a vehicle floor; an upper rail slidably engaged on the lower rail; A lower rotating disk to be attached, an upper rotating disk pivotally supported by the lower rotating disk and supporting a seat cushion, a first opening provided in the lower rotating disk, and a second opening provided in the upper rotating disk. An opening, a rail lock plate provided on the lower rail side, and the first opening and the second opening when the seat cushion slides on the lower rail and comes into contact with the rail lock plate. And a rotation lock plate that can be inserted into the first opening and the second opening only when the openings are aligned with each other. Vehicle seat. 3. A vehicle seat comprising a seat cushion capable of flipping up, a rotation mechanism of the seat cushion, and a seat slide mechanism, wherein a lower rail mounted on a vehicle floor and slidably engaged on the lower rail. An upper rail, a lower rotary disk attached above the upper rail, an upper rotary disk pivotally supported by the lower rotary disk to support a seat cushion, a first opening provided in the lower rotary disk, When the second opening provided in the upper rotating disk, the rail lock plate provided on the lower rail side, and the seat cushion slides on the lower rail and abuts on the rail lock plate, A rotary lock that can be inserted into the first opening and the second opening only when the first opening and the second opening match. With a seat plate, in the state where the seat cushion is flipped up,
The engagement member abuts on the restricting means to displace the slide lock plate toward the upper rail, thereby preventing the slide lock plate and the rail lock plate from abutting on each other, thereby restricting the slide range of the seat cushion. A vehicle seat characterized in that it can be released. 4. A serial to any one of claims 2 to 3
A vehicle seat according to claim 1, wherein the first opening and the second opening coincide with each other only when the seat is facing forward.