JP4631092B2 - Rotating and sliding seat for vehicles - Google Patents

Description

  The present invention relates to a rotating / sliding seat for a vehicle in which the entire seat is configured to be movable in the front-rear direction in the vehicle with a slide rail, and is configured to be turnable according to the front-rear seating direction on a turntable. .

  Conventionally, the upper side of the turntable is provided on the bottom frame side of the seat cushion as the rotation side, and the lower side of the turntable is provided on the upper side of the slide rail as the fixed side. Alternatively, a vehicular rotating / sliding type seat that can be turned in a reverse direction has been proposed (Patent Document 1).

In the rotary slide seat of this type, a reclining mechanism defeat or the seating posture for angle adjustment before the operation of the seat back B lever r ₁ as shown in Figure 12, before the seat cushion C by the operation lever r ₂ Some of them are provided with a tip-up mechanism that moves upward from the section side or returns to a seating posture, and a slide lock mechanism that releases the lock of the slide rail S by operating levers r ₃ and r ₄ .

In addition to each of the mechanisms, a long type is provided as the lower rail of the slide rail S in order to secure a walk-in space and luggage storage space, and the seat back B is operated with the operation lever r ₃ or r _{4 as} shown in FIG. 13a. 13b, as shown in FIG. 13b, the seat cushion C jumps up, and the slide lock mechanism of the slide rail and the rotation lock mechanism of the turntable are unlocked accordingly, and the rear seat is moved to the front side. It is planned to make it slidable toward the seat.

According to the configuration, for example, when the walk-in space is taken and then returned to the original position, the slide lock mechanism of the slide rail is automatically unlocked, so that the entire seat can be immediately returned to the original position. However, since the rotation lock mechanism of the turntable is still unlocked, it is desirable to provide an interlock mechanism that keeps the entire seat from changing direction at the slide stop position for taking the interior space.
JP-A-9-136562

The problem to be solved by the present invention is that when the seat back is tilted forward, the seat cushion jumps up, and the slide lock mechanism of the slide rail and the rotation lock mechanism of the turntable are locked as the seat cushion jumps up. The seat that is configured to be releasable is provided with an interlock mechanism having a simple configuration that can keep the entire seat from being turned by the turntable at the slide stop position.

The present invention includes left and right slide rails that move a seat in the front-rear direction of the vehicle, a fixed lower table installed on the upper rail of the slide rail , and a movable upper attached to the lower side of the seat cushion It has a turntable assembled from the table ,
When the seat back is tilted forward by the reclining mechanism, the seat cushion jumps upward from the front side by the tip-up mechanism, and when the seat cushion jumps, the slide lock mechanism of the slide rail and the rotation lock mechanism of the turntable are The seat can be unlocked, and the entire seat can be moved to a specified area in the longitudinal direction of the vehicle with a slide rail, and the entire seat can be rotated normally on the turntable and counterclockwise in a 180 ° range of normal or reversed seating. In the vehicle rotating / sliding type seat that can be turned to
A lock lever that rises toward the turntable from either the right or left side of the slide rail is mounted on the upper rail plate surface so as to be swingable by a support shaft , and the lock lever is swung by the support shaft . A guide plate is disposed over a predetermined region along the longitudinal direction of the lower rail,
A cam plate for facing the entire seat in a normal orientation or a reverse orientation seating posture is provided in the lower table so as to be rotatable on a support shaft in accordance with the track of the slide rail ,
Furthermore , two restriction pins protrude toward the lower table from a predetermined position of the upper table that is 180 ° apart on the rotation circumference of the turntable,
The cam plate has two notches into which one of the restriction pins fits in accordance with the clockwise or counterclockwise rotation of the turntable, and one of the restriction pins fits into the predetermined notch. receiving jaws for contact with the locking lever with the writing has an outer peripheral edge, load-carrying and with rotatably spring back to the neutral position with the regulation pin is disengaged from the notch,
When the entire seat is rotated by the turntable , the regulation pin is fitted in the notch of the cam plate in the normal direction or the reverse direction of the entire seat , while the cam plate is rotated by the support shaft to be detached from the cam plate ,
When the entire seat is in the normal or reversed seating position and the entire seat with the regulation pin fitted in the notch of the cam plate is moved to a predetermined area with the slide rail, the lock lever comes into contact with the guide plate, The guide plate swings the lock lever, engages the lock lever with the receiving jaw of the cam plate, and is provided with an interlock mechanism that keeps the entire seat from being turned by the turntable with the lock lever.

In the vehicle rotation / slide type seat according to the present invention, the seat cushion jumps upward from the front side by the tip-up mechanism, the slide lock mechanism of the slide rail and the rotation lock mechanism of the turntable are unlocked, and If the entire seat is moved by the slide rail to the area where the upper rail side lock lever contacts the lower rail side guide plate while the entire seat is in the normal direction or the reverse direction, the lock lever swings due to the contact with the guide plate. The lock lever engages with the receiving jaw of the cam plate, so that the lock lever keeps the cam plate on the lower table unrotatable. At this time, since the restriction pin on the upper table side is engaged with the notch of the cam plate, the upper table is also held by the restriction pin so as not to rotate.

  With the interlock mechanism, even if the rotation lock mechanism of the turntable is released at the slide stop position of the seat, the turntable can be locked so that the entire seat is not turned.

  Since the interlock mechanism is composed of a lock lever, a guide plate, two restriction pins, a cam plate, and a spring as main components, it can be assembled as a simple structure.

FIG. 1 includes a turntable 1 capable of turning the entire seat to a normal or inverted seating posture, and a slide rail 2 capable of moving the entire seat in the front-rear direction of the vehicle. The second seat for vehicles is shown.

  The structure of each part will be described in brief. The turntable 1 includes a base table 1a attached and fixed to the upper side of the slide rail 2, a fixed lower table 1b installed on the plate surface of the base plate 1a, and a seat. The rotary upper table 1c attached to the lower side of the cushion C is assembled.

  The slide rail 2 is assembled from an upper rail 2a for mounting and fixing the base table 1a of the turntable 1 and a lower rail 2b for slidably supporting the upper table 2a. As shown in FIG. 2, the slide rails 2 are provided in left and right pairs, and the lower rail 2b is a long type, so that the entire seat is laid so as to be movable to the back of the front seat.

  In the vehicle seat, when the seat back B is tilted forward by a reclining mechanism (not shown) operated by lever operation, the seat cushion C jumps upward from the front side, and the seat cushion C jumps up. Accordingly, a rotation lock mechanism of the turntable 1 and a slide lock mechanism of the slide rail 2 described later are configured to be automatically released.

  Although not specifically shown, the seat back B is connected by a wire cable so as to operate a tip-up mechanism that flips the seat cushion C forward when it is forwarded. The seat cushion C is connected by a wire cable so as to unlock the rotation lock mechanism of the turntable 1 and the slide lock mechanism of the slide rail 2 by jumping up.

  In the vehicle seat, the two restriction pins 3a and 3b are attached to the upper table 1c of the turntable 1, the cam plate 4 in which the restriction pins 3a and 3b are assembled to the lower table 1b, the lock lever 5 to the upper rail 2a, Since the lower rail 2b is provided with a guide plate 6 that swings the lock lever 5, an interlock mechanism is assembled.

  Referring to FIG. 3, the turntable 1 includes a table support 1d that is crimped to the upper table 1c as shown in FIG. 3. The lower table 1b is fixed to the base table 1a with bolts and a ball table. The upper table 1c is rotatably assembled by interposing 1e and 1f between the upper table 1c and the table support 1d and between the lower table 1b and the table support 1d. From this configuration, the upper table 1c includes a table support 1d, and the lower table 1b includes a base table 1a.

  The upper table 1c is provided with two round bar-shaped regulation pins 3a and 3b that project toward the lower table 1b at positions 180 ° apart on the rotation circumference (see FIG. 2). As shown in FIG. 4 (only one is shown), the restricting pins 3a and 3b are a bracket plate 30 that projects inward from the plate surface of the upper table 1c, and a bearing piece that is caulked to the lower end of the end of the bracket plate 30. 31 and is held vertically. The other one 3b is also attached in the same manner as the restriction pin 3a.

  The cam plate 4 to be combined when the restriction pins 3a and 3b are in the normal or inverted seating posture of the entire seat (see FIG. 2; however, the entire seat is in the normal seating posture). It is attached to 1b.

  As shown in FIG. 5, the cam plate 4 is provided with an opening at the outer peripheral edge so that two notches 40a and 40b having a U-shape are adjacent to each other with a gap therebetween in the direction of the movement locus of the regulation pins 3a and 3b. It has been. An outer peripheral edge 40c between the cutouts 40a and 40b is formed as an overhanging jaw for guiding the regulation pins 3a and 3b into each U-shape.

  As shown in FIG. 6, a receiving jaw 41 is provided on the opposite side of the notches 40a and 40b by bending downward from the outer peripheral edge. The receiving jaw 41 is formed so as to abut and engage with the lock lever 5 at the side edge 41a or 41b, as will be described later, as the restriction pin 3a is fitted into the notch 40a or the restriction pin 3b is fitted into the notch 40b. Has been.

  The cam plate 4 is held by a mounting plate 42 as a base. The installation plate 42 is provided with a cradle 43 with the plate surface raised in a substantially dome shape. The cam plate 4 is mounted on the upper side of the dome so that the cam plate 4 can be supported by a support shaft 44 and can rotate.

  The cam plate 4 is tension-supported by a coil spring 45 so as to be rotated back to the neutral position as the regulation pins 3a and 3b are removed from the notches 40a and 40b. The coil spring 45 is stretched between a spring hooking piece 46 a bent downward from the outer peripheral edge of the cam plate 4 and a spring hooking piece 46 b rising from the installation plate 42.

  In addition, the installation plate 42 is provided with a cutout portion 47 into which the lock lever 5 is inserted so as to extend from the edge of the plate surface in the plane. In addition, stopper pieces 48 a and 48 b are provided to stand on both sides via the notch 47. Since the cam plate 4 is mounted on the plate surface of the base plate 1a by the installation plate 42, a slit 1g (see FIG. 2) for receiving the lock lever 5 is provided on the plate surface of the base plate 1a.

  As the lock lever 5, as shown in FIG. 7, a lever having a substantially fan shape extending from the narrow lower side 5 a to the wide upper side 5 b is provided so as to be able to swing from the slide rail 2 to the turntable side. . The lock lever 5 is pivotally attached to the side surface of the upper rail 2a by a support shaft 5c. When the lower side 5a comes into contact with the guide plate 6, the upper side 5b engages with the receiving jaw 41 of the cam plate 4. It is provided so that it can swing. Moreover, it attaches so that a posture may be hold | maintained with the spring 5d spanning between the substantially middle side surface and the side surface of the upper rail 2a.

  As the guide plate 6 (see FIG. 1), a linear plate having a rising edge that can swing when the lock lever 5 hits the lower side 5a is provided. The guide plate 6 is laid on the inner side of the lower rail 2b with a length over a predetermined area where the entire seat is slid and stopped. In addition, the lock lever 5 after abutting and swinging is disposed so as to ride along the longitudinal direction of the upper side.

  The turntable 1 is provided with a rotation lock mechanism 7 (see FIG. 2). The rotation lock mechanism 7 includes a lock cam 7a that keeps the upper table 1c in a non-rotatable state when the entire seat is in a normal or rotational seating posture. The lock cam 7a is mounted on the plate surface of the lower table 1b with a support shaft 7b, and is biased against the upper table 1c by a torsion coil spring 7c, so that the upper table 1c is kept non-rotatable.

The turntable 1 is provided with a lock cam 7a connected by a seat cushion C and a wire cable 7d, and when the seat cushion C jumps up, the lock cam 7a is pulled away from the upper table 1c by a pull by the wire cable 7d. . In addition to the rotation lock mechanism 7, the turntable 1 is provided with a stopper (not shown) that stops rotating at a clockwise or counterclockwise 180 ° position.

  The slide rail 2 is provided with a slide lock mechanism 8 as shown in FIG. The slide lock mechanism 8 includes a lock tooth 8a that can move up and down in the upper rail 2a, and a plurality of stop holes (not shown) with which the lock tooth 8a meshes are provided along the longitudinal direction of the bottom surface of the lower rail 2b. ing.

  The lock tooth 8a is pivotally attached to one end of the swing lever 8b so as to move up and down inside the lower rail 2b. The swing lever 8b is pivotably attached because the substantially middle abdominal side is pivotally attached to the side surface of the upper rail 2a by the support shaft 8c. Further, the lock teeth 8a are urged and supported by springs 8d extending between the upper edge of the substantially middle abdominal side and the side surface of the upper rail 2a so as to mesh with the retaining holes of the lower rail 2b. In addition to this, a receiving piece 8e is provided so as to project laterally on the other end side to which the lock teeth 8a are attached.

  In contrast to the slide lock mechanism 8, a slide lock release mechanism 9 is provided on the lower side of the base table 1a. The slide lock release mechanism 9 includes a projecting arm 9b that supports the rotating shaft 9a by a bearing bracket 1h that projects downward from the plate surface of the base table 1a, and is cantilevered on the axis of the rotating shaft 9a. A pressing roller 9c that presses the receiving piece 8e of 8b protrudes and is provided on the tip side of the arm 9b.

  The slide lock release mechanism 9 is connected to the seat cushion by a wire cable so that the rotating shaft 9a rotates as the seat cushion jumps up. When the rotary shaft 9a is rotated by pulling with a wire cable, the protruding arm 9b swings and the presser roller 9c presses the receiving piece 8e of the swing lever 8b, so that the lock teeth 8a are moved upward in the releasing direction. It is equipped to do.

  The slide lock mechanism 8 described above is provided on each of the left and right slide rails 2. For this reason, the slide lock releasing mechanism 9 is configured to span the rotating shaft 9a between the left and right sides of the slide rail 2, and to have a protruding arm 9b and a pressing roller 9c having the same configuration on both ends of the rotating shaft 9a.

  In the rotating / sliding seat for a vehicle configured as described above, when the entire seat is in a normal or inverted seating posture and the seat back B is tilted forward by a lever operation, the seat cushion C is moved to a tip-up mechanism. Jump up at. As the seat cushion C jumps up, the rotation lock mechanism 7 by the lock cam 7a of the turntable 1 and the slide lock mechanism 8 by the lock teeth 8a of the slide rail 2 are released. Thereby, for example, the entire seat can be slid to the predetermined front position by the slide rail 2 so as to secure the walk-in space.

  When the entire seat is in the normal sitting posture, the restriction pin 3a is fitted in the notch 40a of the cam plate 4 as shown in FIG. When the entire seat is moved by the slide rail 2 and the lock lever 5 reaches the area where the guide plate 6 is disposed, the lock lever 5 comes into contact with the guide plate 6 at the lower side 5a. Swings. When the lock lever 5 swings, the upper side 5 b engages with the side edge 41 a of the receiving jaw 41. Thereby, the cam plate 4 is locked by the lock lever 5 so as not to rotate.

  At the time of the slide movement, the entire seat is in a normal seating posture, and the upper table side regulation pin 3a is kept fitted in the notch 40a of the cam plate 4 provided on the lower table side. The upper table side of 1 is also kept non-rotatable. Thereby, the whole sheet | seat is maintained by the turntable 1 at the slide stop position so that direction change is impossible.

  In the interlock mechanism, even when the entire seat is in the seating posture in the reverse direction, as shown in FIG. 10, another restriction pin 3b is fitted in the notch 40b of the cam plate 4, so that the lock lever 5 is connected to the guide plate. When rocking at 6, the upper side 5 b engages with the side edge 41 b of the receiving jaw 41, so that the cam plate 4 can be locked by the lock lever 5 so as not to rotate. Further, as long as the lock lever 5 rides on the upper side of the guide plate 6, the entire seat can be kept from being turned by the turntable 1.

When the entire seat is moved back, the slide lock mechanism 8 remains released, so that it can be immediately returned to the position before taking the weak-in space. Since the lock lever 5 is detached from the guide plate 6 at the time of the return, the interlock mechanism by the lock lever 5 is also released.

  When the seat operation mode described above is employed, the seat back B is raised to the upright as shown in FIG. 11a, so that the tip-up mechanism is locked as the seat cushion C further jumps, and the turntable 1 The rotation lock mechanism 9 can be configured to be locked. This may be configured such that the tip-up mechanism and the rotation lock mechanism are connected to the seat cushion C by a cable different from the above-described wire cable, and each is operated to return.

  In the seat, as shown in FIG. 11b, the operation lever 10a of the tip-up mechanism is provided for releasing, and the seat cushion C can be returned to the seating position and locked. Since the reclining mechanism locks the seat back B up to the upright and releases it with the operation lever 10b, the angle of the seat back B can be adjusted to the seating posture as shown in FIG. 11c.

  The operation lever 10c provided at the front portion of the seat cushion C may be provided for adjusting the front / rear position of the seat in the seating posture. The operation lever 10d provided at the rear part of the seat cushion C may be provided for walk-in use.

  The above-described embodiment has been described based on the case where the second seat is slid to the rear side of the front seat as the rear side seat, but is applied to both cases including the case where the second seat is slid to the front side of the third seat. it can. Further, the present invention can be similarly applied to a case where the third seat is slid to the rear side of the second seat as the rear seat.

It is explanatory drawing which shows roughly the principal part of the rotation and slide type seat for vehicles concerning the present invention. It is a top view which shows roughly the principal part of the turntable with which the sheet | seat of FIG. 1 is equipped. It is the sectional view on the AA line which shows the turntable of FIG. It is a top view which shows the attachment mechanism containing the cam plate with which the sheet | seat of FIG. 1 is equipped. It is a side view which shows the attachment mechanism containing the cam plate of FIG. FIG. 3 is a cross-sectional view taken along line BB showing the turntable of FIG. 2. It is a side view which shows the lock lever and guide plate with which the sheet | seat of FIG. 1 is equipped. It is a side view which shows the slide lock mechanism with which the sheet | seat of FIG. 1 is equipped, and a slide lock release mechanism. It is explanatory drawing which shows the positional relationship of a cam plate, a control pin, and a lock lever when the whole sheet | seat is in a normal seating attitude | position. It is explanatory drawing which shows the positional relationship of a cam plate, a control pin, and a lock lever when the whole sheet | seat is in a seating posture of reversal direction. It is explanatory drawing which shows the operation form employable with the sheet | seat of FIG. It is explanatory drawing which shows the operation form which can be employ | adopted following the sheet | seat of FIG. 11a. It is explanatory drawing which shows the operation form which can be employ | adopted following the sheet | seat of FIG. 11b. It is explanatory drawing which shows the rotation / slide-type seat for vehicles which concerns on a general example. It is explanatory drawing which shows the initial operation | movement of the sheet | seat planned by this invention. It is explanatory drawing which shows the chip-up operation | movement of the sheet | seat planned by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turntable 1b Lower table of turntable 1c Upper table of turntable 2 Slide rail 2a Upper rail of slide rail 2b Lower rail of slide rail 3a, 3b Restriction pin of turntable 4 Cam plate 40a, 40b Cam plate notch 41 Cam plate Receiving jaw 5 Lock lever 6 Guide plate 7 Turntable rotation lock mechanism 8 Slide rail slide lock mechanism

Claims (1)

A pair of left and right slide rails that move the seat in the longitudinal direction of the vehicle , and a fixed lower table installed on the upper rail of the slide rail , and a movable upper table attached to the lower side of the seat cushion With turntable assembled ,
When the seat back is tilted forward by the reclining mechanism, the seat cushion jumps upward from the front side by the tip-up mechanism, and when the seat cushion jumps, the slide lock mechanism of the slide rail and the rotation lock mechanism of the turntable are The seat can be unlocked, and the entire seat can be moved to a specified area in the longitudinal direction of the vehicle with a slide rail, and the entire seat can be rotated normally on the turntable and counterclockwise in a 180 ° range of normal or reversed seating. In the vehicle rotating / sliding type seat that can be turned to
A lock lever that rises toward the turntable from either the right or left side of the slide rail is mounted on the upper rail plate surface so as to be swingable by a support shaft , and the lock lever is swung by the support shaft . A guide plate is disposed over a predetermined region along the longitudinal direction of the lower rail,
A cam plate for facing the entire seat in a normal orientation or a reverse orientation seating posture is provided in the lower table so as to be rotatable on a support shaft in accordance with the track of the slide rail ,
Furthermore , two restriction pins protrude toward the lower table from a predetermined position of the upper table that is 180 ° apart on the rotation circumference of the turntable,
The cam plate has two notches into which one of the restriction pins fits in accordance with the clockwise or counterclockwise rotation of the turntable, and one of the restriction pins fits into the predetermined notch. receiving jaws for contact with the locking lever with the writing has an outer peripheral edge, load-carrying and with rotatably spring back to the neutral position with the regulation pin is disengaged from the notch,
When the entire seat is rotated by the turntable , the regulation pin is fitted in the notch of the cam plate in the normal direction or the reverse direction of the entire seat , while the cam plate is rotated by the support shaft to be detached from the cam plate ,
When the entire seat is in the normal or reversed seating position and the entire seat with the regulation pin fitted in the notch of the cam plate is moved to a predetermined area with the slide rail, the lock lever comes into contact with the guide plate, For vehicles, characterized in that the guide plate swings the lock lever, engages the lock lever with the receiving jaw of the cam plate, and has an interlock mechanism that keeps the entire seat from being turned by the turntable with the lock lever Rotating and sliding seat.

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