JP2010095139A - Retractable vehicular seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a retractable vehicular seat in which, when a front leg and a rear leg are turned within a range smaller than a predetermined angle from a use position to a folding position side, the movement is not transferred to a reclining mechanism, while a backrest can be automatically folded when a seat is turned down until a recess for retraction, and which shortens a cable connecting the front or rear leg to the reclining mechanism. <P>SOLUTION: The retractable vehicular seat includes: a locking release lever 46 turning between a locking keeping position to allow the reclining mechanism 40 to be locked, and a locking release position to shift the reclining mechanism to a unlocking state; and a pressing member 43 provided in the rear leg, which is separated from the locking release lever when the rear leg is positioned in a use position, and turns the locking release lever until the locking release position when the rear leg is turned to the folding position side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a retractable vehicle seat.

The retractable vehicle seat of Patent Document 1 is attached to a seat portion rotatably supported on a vehicle floor surface via a link mechanism, a backrest portion rotatable relative to the seat portion, and a lower surface of the seat portion. And a front leg and a rear leg that are rotatable between a use position projecting downward from the seat part and a folding position substantially parallel to the seat part.
On the vehicle floor surface, a storage recess and a seat installation surface are formed by shifting the front and rear positions, and the seat is stored in the storage recess and seated on the seat installation surface by the link mechanism. It can be rotated between positions. Further, since the link mechanism is linked to the front leg and the rear leg, when the seat moves to the retracted position, the front leg and the rear leg move to the folding position while being synchronized. On the other hand, when the seat moves to the seating position, the front legs and the rear legs move to the use position while being synchronized, and the lower ends of the front legs and the rear legs are supported by the seat installation surface.

Between the seat part and the backrest part, both are connected so as to be relatively rotatable, and the backrest part located in the standing position substantially orthogonal to the seating part is held in the standing position, and the back There is provided a reclining mechanism capable of shifting to an unlocked state in which the bent portion is rotated to a retracted position that is substantially parallel to the seat portion.
Further, inside the backrest portion, it is possible to rotate between a non-pressing position that is not in contact with the reclining mechanism, and an unlocking position that switches the reclining mechanism in the locked state to the unlocked state by contacting the reclining mechanism. An arm member is provided.
Since this arm member is linked to the front leg via a cable disposed inside the seat portion, the position of the arm member changes according to the position of the front leg. Specifically, when the front leg is located at the use position, it is located at the non-pressing position, and when the front leg rotates to the folding position, it rotates to the unlocking position. Therefore, when the seat with the backrest positioned at the upright position and the seating position is rotated to the retracted position, the arm member positioned at the non-pressing position rotates to the unlocking position by pulling the cable. Therefore, the reclining mechanism is unlocked. Therefore, when the seat is rotationally moved to the retracted position, the backrest portion is automatically rotated to the retracted position by the action of the reclining mechanism.
JP 2008-62740 A

The retractable vehicle seat of Patent Document 1 has the following drawbacks.
That is, since the front leg and the arm member are connected via the cable, there is no play between the movement of the front leg and the movement of the arm member (the movements of both are always linked). Therefore, since the rotation stroke of the arm member becomes large, it is difficult to manage the stroke of the arm member. Further, since the rotation stroke of the arm member becomes large, a large space for enabling the rotation of the arm member is required inside the backrest portion. Furthermore, even if the movement to the storage position is stopped immediately after the seat starts to rotate from the seating position to the storage position, the arm member rotates to the unlock position side in conjunction with the movement of the front leg. There is a risk that the backrest will rotate to the retracted position.
In addition, since the cable is a member that connects the reclining mechanism located in the vicinity of the rear end of the seat portion and the front leg located in the vicinity of the front end of the seat portion, its total length is inevitably increased. Therefore, it is not easy to arrange the cable so that it does not come into contact with other members provided inside the seat portion.

  The object of the present invention is that the back and back legs can be automatically folded from the use position to the folding position side when the seat is rotated to the recess for storage, but the angle is smaller than a predetermined angle from the use position to the folding position. An object of the present invention is to provide a retractable vehicle seat in which the movement is not transmitted to the reclining mechanism when rotating in a range, and the cable connecting the front leg or the rear leg and the reclining mechanism can be shortened.

  A retractable vehicle seat according to the present invention includes a seat portion that is rotatable with respect to a vehicle floor surface including a seat installation surface and a storage recess, a backrest portion that is rotatably connected to the seat portion, and the seat. When the seat is located in the use position supported by the seat installation surface when the seat is positioned directly above the seat installation surface, and the seat is located within the storage recess A front leg and a rear leg that are located in a folding position that is substantially parallel to the front leg, a lock that rotatably connects the backrest and the seat, and holds the backrest in an upright position that is substantially perpendicular to the seat. A reclining mechanism that shifts to a state and an unlocked state in which the backrest is rotated to a retracted position that is substantially parallel to the seat, and the reclining mechanism and the cable (W), A lock that allows a locked state Rotation biased toward the lock holding position provided on one of the front leg and the rear leg and one of the seats so as to be rotatable between the holding position and the unlocking position for shifting to the unlocked state. When the unlocking lever and the front and rear legs are in the above-mentioned use position, they are separated from the above-mentioned unlocking lever, and when rotating from the use position to the above-mentioned folding position, they come into contact with the unlocking lever and rotate to the above-mentioned unlocking position. One of the front leg and the rear leg, and a pressing member provided on the other side of the seat part are provided.

  When the pressing member is rotatable between the pressable position and the retracted position and is urged to rotate toward the retracted position, and the front and rear legs rotate from the use position to the folding position. The unlocking lever is rotated to the unlocking position while being positioned in the pressable position, and then over the unlocking lever and separated from the unlocking lever, and the front and rear legs are moved from the folding position to the folding position. When rotating to the use position, it can be pushed by the rotation biasing force after getting over the lock release lever while rotating to the retracted position against the rotation biasing force by contacting the lock release lever It is preferable that the rotation return to the position.

According to the first aspect of the present invention, when the seat with the backrest portion positioned at the standing position and the seating position is rotated and moved to the recessed portion for storage, the front and rear legs positioned at the use position are folded to the folding position side. Therefore, when it is rotated to a predetermined position, the pressing members provided on the front leg and the rear leg come into contact with the lock release lever located at the lock holding position. Then, since the unlocking lever is rotated to the unlocking position by the pressing member, the reclining mechanism linked to the unlocking lever via the cable shifts from the locked state to the unlocked state. Therefore, if the seat is rotated to the retracted position, the backrest portion automatically rotates to the retracted position.
Moreover, the pressing member and the unlocking lever do not contact when the front leg and the rear leg are in the use position, but contact with the front leg and the rear leg only when the front leg and the rear leg rotate a predetermined angle toward the folding position. When the rear leg rotates from the use position to the folding position within a range smaller than the predetermined angle, the movement is not transmitted to the reclining mechanism. Therefore, since the rotation stroke of the lock release lever is smaller than the structure in which the front leg or the rear leg and the reclining mechanism are directly connected by a cable, stroke management is easy. Further, the space for rotating the lock release lever inside the seat can be reduced. Furthermore, even when the rotational movement to the storage position is stopped immediately after the seat starts to rotate from the seating position to the storage position side, if the rotation angle is smaller than the predetermined angle, the pressing member becomes the lock release lever. Since it does not contact, it can prevent that a backrest part rotates unexpectedly to a retraction position.
In addition, since the lock release lever can be provided not at the end portion of the seat portion but at, for example, an intermediate portion in the longitudinal direction of the seat portion, the cable connecting the lock release lever and the reclining mechanism can be shortened. Therefore, it is easy to arrange the cable so as not to come into contact with other members provided inside the seat portion.

According to the invention of claim 2, the front leg and the rear leg can be smoothly rotated from the use position to the folding position, and the pressing member is surely returned to the pressable position when moved to the use position. Is possible.
Furthermore, when the front and rear legs rotate from the use position to the folded position, the pressing member located in the pressable position moves away from the unlocking lever after rotating the unlocking lever to the unlocking position, so unlocking is performed. The lever will not rotate more than necessary. Accordingly, it is possible to prevent an excessive tension from being applied to the cable that links the reclining mechanism and the lock release lever.
Also, when the front and rear legs rotate from the use position to the folding position with the structure that the lock release lever can be rotated beyond the lock release position from the lock holding position to the lock release position (overstroke is possible) If the position of the unlocking lever when the pressing member moves away from the unlocking lever is set between the unlocking position and the limit rotation position (end position of the overstroke), the unlocking lever can be reliably rotated to the unlocking position. Therefore, the reclining mechanism can be reliably shifted to the unlocked state.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, the front-rear and left-right directions are based on the directions of the arrows in the figure.
As shown in FIGS. 1 to 3, on the floor surface 11 in the vehicle 10, there are seat installation surfaces 12, 13 formed side by side and a storage recess 14 positioned immediately after the rear seat installation surface 13. The sheet 15 is fixed to the front sheet installation surface 12. As shown in FIGS. 2 and 3, two strikers 17 </ b> F project as a pair of left and right near the front end portion of the rear seat setting surface 13, and two strikers 17 </ b> F project near the rear end portion of the seat setting surface 13. The striker 17R protrudes as a pair of left and right (the striker 17F and the striker 17R are components of the seat installation surface 13).

The retractable sheet 20, which is the second row of sheets, can be stored in the storage recess 14 and can be placed on the sheet installation surface 13, and its specific structure is as follows.
The seat 20 includes, as main components, a seat portion 21, a backrest portion 38 that is rotatable with respect to the rear end portion of the seat portion 21, a front leg 25 and a rear leg 27 that are rotatable with respect to the seat portion 21, and A link mechanism 34 that supports the seat 20 on the seat installation surface 13 so as to be rotatable in the front-rear direction.
The seat portion 21 is provided with a pair of left and right metal seat frames 22 that are components of the seat portion 21. The left and right seat frame 22 extends in the front-rear direction and has an upward connection end 23 at the rear end. The left and right seat frame 22 are fixed to each other by a metal connecting member (not shown) extending in the left-right direction. It is. A front leg 25 and a rear leg 27 are attached to the front and rear parts of the left and right seat frame 22, respectively. A concave groove 26 into which the striker 17F can enter is recessed at the front end portions of the left and right front legs 25, and a concave groove 28 into which the striker 17R can enter is recessed at the front end portions of the left and right rear legs 27. . Further, the left and right front legs 25 and rear legs 27 are each provided with a well-known lock mechanism (not shown) that is provided with a hook and a pole that can rotate, and can be engaged with and disengaged from the striker 17F and the striker 17R. As shown in FIG. 1, the right side surface of the seat portion 21 is provided with a lock release switch SW that is linked to the lock mechanism via an operation wire (not shown). The lock release switch SW is slidable between a lock allowable position shown in FIG. 1 and a lock release position (not shown), and is always located at the lock allowable position by the biasing force of a spring means (not shown). . The lock release switch SW allows the lock mechanism of the front leg 25 and the rear leg 27 to be in a locked state when it is in the lock allowable position, and puts the lock mechanism in an unlocked state by being in the lock release position. To do.

A first synchronization link 30 is rotatably attached to the rotation shafts of the left and right rear legs 27. The left and right first synchronization links 30 are connected to the rear end portions of second synchronization links 31 extending in the front-rear direction so as to be rotatable about the left and right axes. The part is connected to the left and right front legs 25 so as to be rotatable about a left-right axis. Further, first support links 32 are fixed to the left and right rear legs 27, and the lower ends of the left and right first support links 32 are about a left and right axis around a bracket provided on the bottom surface of the storage recess 14. It is connected so that it can rotate. Further, the upper end portion of the second support link 33 is connected to the connecting member that connects the left and right seat frame 22 so as to be rotatable about the left and right axis, and the lower end portion of the second support link 33 is It is connected to a bracket fixed to the front wall surface of the storage recess 14 so as to be rotatable about a left-right axis.
The link mechanism 34 including the first synchronization link 30, the second synchronization link 31, the first support link 32, and the second support link 33 has two functions. The first function is a function of rotating the seat 20 between a storage position positioned in the storage recess 14 and a seating position positioned on the seat installation surface 13. The second function is a function for interlocking (synchronizing) the movements of the front legs 25 and the rear legs 27. By this second function, when one of the front leg 25 and the rear leg 27 rotates to the folding position shown in FIG. 2, the other also rotates to the folding position, and when one rotates to the use position shown in FIG. Rotate to position.

  The backrest portion 38 includes a metal backrest portion frame 39 that is a component of the backrest portion 38 as a pair on the left and right sides. The left and right backrest frames 39 are fixed to each other by metal connecting members (not shown) extending in the left-right direction. The lower ends of the left and right backrest frames 39 are respectively connected to the connection end portions 23 of the left and right seat frame 22 via one reclining mechanism 40. The reclining mechanism 40 rotates the backrest frame 39 around the left-right axis with respect to the seat frame 22. Accordingly, the backrest portion 38 is in contact with the upper surface of the seat portion 21 so as to be substantially parallel to the seat portion 21 (a position shown in FIG. 2), and an upright position (FIG. 3) that is substantially perpendicular to the seat portion frame 22. ) Position). Further, the reclining mechanism 40 includes a ratchet (not shown) integrated with the backrest frame 39, a pole (not shown) that can rotate with respect to the backrest frame 39 and mesh with the ratchet, and the backrest frame 39. A release lever 50 that is rotatable with respect to the pole and is engaged with and disengaged from the pole, first rotation urging means (not shown) comprising a spring that urges the backrest portion 38 toward the retracted position, and the release lever 50 There is provided a second rotation urging means (not shown) comprising a spring for urging the side to engage the pawl and the ratchet. Since the release lever 50 is always urged to rotate toward the pressing position (position shown in FIG. 3) where the pawl and the ratchet are engaged with each other by the rotation urging force of the second rotation urging means, the reclining mechanism 40 is always in the pole And the ratchet is in a locked state, and the backrest 38 positioned in the standing position is held in the standing position. On the other hand, when the release lever 50 is rotated to the non-pressing position (the position shown in FIG. 2) against the rotation biasing force of the second rotation biasing means, the release lever 50 is separated from the pole. The holding force disappears. For this reason, the backrest 38 is automatically rotated to the retracted position by the rotation biasing force of the first rotation biasing means of the reclining mechanism 40.

The seat 20 includes an interlocking mechanism for interlocking the operation of the rear leg 27 and the operation of the reclining mechanism 40. The structure of the interlocking mechanism is as follows.
As shown in FIGS. 4 to 10, a stopper piece 29 is integrally protruded from the left side surface of the left rear leg 27 by cutting and raising, and a rotating shaft 42 extending in the left-right direction is further provided on the left side surface. A pressing lever (pressing member) 43 is rotatably attached thereto. Since both ends of the tension spring S1 are respectively engaged with the front end portion of the pressing lever 43 and the left side surface of the rear leg 27, the pressing lever 43 is always at the rear surface of the stopper piece 29 by the biasing force of the tension spring S1. It is located at a pressable position (position shown in FIGS. 5 to 9) in contact with the front surface.
A metal support bracket 24 is fixed to a substantially central portion of the left seat frame 22 in the longitudinal direction, and a stopper piece 24a is cut and raised on the right side surface of the support bracket 24 so as to project integrally. . On the right side surface of the support bracket 24, an intermediate portion of a lock release lever 46 having a generally U shape in a side view is rotatably supported by a rotation shaft 45 extending in the left-right direction. The pin to be pressed 47 extending toward the right side is fixed. The left and right positions of the pressed pin 47 and the pressing lever 43 coincide with each other. Further, since both ends of the tension spring S2 are engaged with the lock release lever 46 and the support bracket 24, the front surface of the lock release lever 46 is always brought into contact with the rear end surface of the stopper piece 24a by the urging force of the tension spring S2. It is located in the lock holding position (position of FIG.5, FIG.6 and FIG.8-10) which contacts. One end of the cable W is fixed to the end of the lock release lever 46 opposite to the portion where the pressed pin 47 is fixed. The periphery of the cable W is covered with a covering tube T, and a plurality of support protrusions (a support recess 24b formed on the support bracket 24 at a plurality of intermediate portions of the cover tube T and a left support frame 22 ( (Not shown).
The other end of the cable W is fixed to a release lever 50 (see FIGS. 2 and 3) attached to the left backrest frame 39 so as to be rotatable about a horizontal axis. Since the release lever 50 is connected to the lock release lever 46 via the cable W, the rotation operations of the lock release lever 46 and the release lever 50 are interlocked with each other. That is, when the lock release lever 46 is positioned at the lock holding position, the release lever 50 is positioned at the pressing position (position shown in FIG. 3) by the rotation biasing force of the second rotation biasing means. On the other hand, when the lock release lever 46 moves away from the stopper piece 24a to the lock release position (position between FIG. 6 and FIG. 7), the release lever 50 resists the rotation biasing force of the second rotation biasing means. It rotates to the said non-pressing position (position of FIG. 2).
As described above, the stopper piece 24a, the stopper piece 29, the rotating shaft 42, the pressing lever 43, the rotating shaft 45, the lock releasing lever 46, the pressed pin 47, the release lever 50, the tension spring S1, the tension spring S2, and the cable W ( The covering tube T) is a component of the interlocking mechanism.

Next, the operation of the seat 20 will be described mainly with reference to FIGS.
As shown in FIGS. 1, 3 and 5, when the seat 20 is in the seating position and the locking mechanism of the front leg 25 and the rear leg 27 locks the striker 17F and the striker 17R, the unlocking switch SW is in the unlocking position. When moved to, the locking mechanism of the front leg 25 and the rear leg 27 unlocks the striker 17F and the striker 17R. When the passenger presses the seat 21 backward after unlocking, the link mechanism 34 causes the entire seat 20 to rotate backward, and the front leg 25 and the rear leg 27 located at the use position are folded in synchronization. Rotate to the side. When the lock release switch SW is returned to the lock permissible position and the seat 20 is further rotated backward, the pressing lever 43 that is separated rearward from the pressed pin 47 gradually approaches the pressed pin 47, and the rear leg When 27 is rotated to the position shown in FIG. 6, the front surface of the pressing lever 43 contacts the pressed pin 47 from below. When the rear leg 27 further rotates to the folding position side, the unlock lever 46 is rotated to the unlock position by the pressing lever 43 against the biasing force of the tension spring S2, so that the release lever 50 is biased to the second rotation bias. It rotates to the non-pressing position against the rotational biasing force of the means. Then, the meshing state of the pawl and the ratchet of the reclining mechanism 40 is canceled, and the backrest portion 38 is automatically rotated to the retracted position by the rotational urging force of the first rotation urging means of the reclining mechanism 40.
As shown in FIGS. 2 and 8, when the seat 20 rotates and moves to the storage position where it is completely stored in the storage recess 14, the pressing lever 43 gets over the pressed pin 47 and the rear leg 27 and the front leg 25. Reaches the folding position. Further, since the pressing lever 43 gets over the pressed pin 47 and rotates above the pressed pin 47 (away from the pressed pin 47), the lock release lever 46 rotates to the lock holding position by the rotational biasing force of the tension spring S2. Return. As a result, the release lever 50 rotates and returns to the pressing position, and the reclining mechanism 40 shifts to the locked state, so that the backrest 38 is held in the retracted position. And since the hook member (not shown) provided in the lower surface of the seat part 21 engages with the striker (not shown) fixed to the bottom face of the recessed part 14 for storage, the sheet | seat 20 is hold | maintained in a storing position.
When returning the seat 20 to the seating position, after the engagement of the striker by the hook member is released by moving the lock release switch SW to the lock release position (the hook member is linked to the lock release switch SW), The seat portion 21 is pressed obliquely upward in the front direction. As a result, the entire seat 20 is rotated and moved forward by the action of the link mechanism 34, and the front leg 25 and the rear leg 27, which are located at the folding position, are rotated to the use position side in synchronization. When the unlocking switch SW is returned to the lock allowable position and the seat 20 is further rotated forward, as shown in FIG. 9, the rear leg 27 is rotated to the use position side, whereby the pressing lever 43 is moved to the pressed pin 47. Contact from above. When the rear leg 27 further rotates to the use position side, as shown in FIG. 10, the pressing lever 43 rotates in the direction away from the stopper piece 29 against the urging force of the tension spring S1, and is pressed while rotating in this direction. The pin 47 is moved down (the position of the pressing lever 43 shown in FIG. 10 is the retracted position).
The pressing lever 43 that has passed over the pressed pin 47 is rotated back to the pressable position by the urging force of the tension spring S1. 3 and 5, when the seat 20 rotates to the seating position, both the rear leg 27 and the front leg 25 reach the use position, and the locking mechanism of the front leg 25 and the rear leg 27 locks the striker 17F and the striker 17R. The seat 20 is held in the seating position.

As described above, in the present embodiment, when the seat 20 positioned at the seating position is rotated to the retracted position, the backrest frame 39 is automatically moved to the retracted position in conjunction with the rotation operation of the rear leg 27. Can be rotated.
In addition, as long as the rotation angle when the rear leg 27 rotates from the use position to the folding position side is smaller than a predetermined angle (position shown in FIG. 6), the pressing lever 43 and the pressed pin 47 which are components of the interlocking mechanism. Are separated from each other, the movement of the rear leg 27 is not transmitted to the reclining mechanism 40 during this period. Therefore, since the rotation strokes of the unlock lever 46 and the release lever 50 are smaller than when the end portion of the cable W is connected to the rear leg 27 instead of the unlock lever 46, the stroke management of these members is easy. . Further, it is possible to reduce the space for rotating the unlocking lever 46 inside the seat portion 21 and the space for rotating the release lever 50 inside the backrest portion 38. Further, even when the rotational movement to the storage position is stopped immediately after the seat 20 starts to be rotationally moved from the seating position to the storage position, the pressing lever 43 is not locked when the rotation angle is smaller than the predetermined angle. Since it does not contact 46, it can prevent that the backrest part 38 rotates unexpectedly to a retraction position.
Further, the lock release lever 46 is attached to the support bracket 24 fixed to the substantially central portion of the seat frame 22 in the longitudinal direction, and the lock release lever 46 and the release lever 50 are connected by the cable W. The cable W can be shortened compared to the seat of Patent Document 1 in which the reclining mechanism located in the vicinity of the end and the front leg located in the vicinity of the front end of the seat are connected by the cable. Therefore, it is easy to arrange the cable W and the covering tube T so as not to contact other members provided in the seat portion 21.

Further, when the front leg 25 and the rear leg 27 rotate from the use position to the folding position, the pressing lever 43 positioned at the pressing possible position causes the lock releasing lever 46 to be unlocked (position between FIG. 6 and FIG. 7). 7 is separated from the lock release lever 46 at the position of FIG. 7, the lock release lever 46 does not rotate in the clockwise direction from the position of FIG. 7. As described above, when the reclining mechanism 40 is shifted to the locked state, the lock release lever 46 is not rotated more than necessary, so that an excessive tension is applied to the cable W that links the reclining mechanism 40 and the lock release lever 46. Can be prevented.
Further, the lock release lever 46 is structured to be able to rotate counterclockwise (overstroke) from the lock holding position beyond the lock release position, and the front leg 25 and the rear leg 27 can be rotated from the use position to the folding position. The position of the unlock lever 46 when the pressing lever 43 moves away from the unlock lever 46 is set between the unlock position and the limit rotation position (the end position of the overstroke (not shown)). Therefore, since the lock release lever 46 can be reliably rotated to the lock release position, the reclining mechanism 40 can be reliably shifted to the unlocked state.

Although the present invention has been described based on the above embodiment, the present invention is not limited to the above embodiment and can be implemented in various modes.
For example, the stopper piece 29, the rotating shaft 42, the pressing lever 43, and the tension spring S1 may be provided on the front leg 25 side instead of the rear leg 27 side. Further, the stopper piece 29, the rotating shaft 42, the pressing lever 43, and the tension spring S1 are provided on the seat portion 21 (seat portion frame 22), and the rotating shaft 45, the lock release lever 46 (the pressed pin 47), and the tension spring S2 are provided. It may be provided on the rear leg 27 or the front leg 25.
Further, the storage recess 14 is installed in front of the sheet installation surface 13, the seat 20 positioned at the storage position is rotated backward to rotate to the use position, and the seat 20 positioned at the use position is moved. You may make it rotate to the storing position by rotating forward.

1 is a side view schematically showing a vehicle to which a retractable vehicle seat according to an embodiment of the present invention is applied. It is a side view when a sheet | seat is located in a storing position. It is a side view when a seat is located in a seating position. It is a disassembled perspective view of a seat part frame, a rear leg, and an interlocking mechanism. It is a side view of the principal part of a sheet | seat when a sheet | seat is located in a seating position. FIG. 6 is a side view similar to FIG. 5 when the seat rotates from the seating position to the retracted position side and the pressing lever contacts the pressed pin. FIG. 6 is a side view similar to FIG. 5 when the seat is further rotated toward the storage position and the unlock lever is rotated to the unlock position by the pressing lever. FIG. 6 is a side view similar to FIG. 5 when the sheet is rotated to the storage position. FIG. 6 is a side view similar to FIG. 5 when the seat rotates from the retracted position to the seating position and the pressing lever contacts the pressed pin. FIG. 6 is a side view similar to FIG. 5 when the seat further rotates to the seating position side and the pressing lever gets over the pressed pin.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle 11 Floor surface 12 13 Seat installation surface 14 Recess 15 for storage 15 Seat 17F 17R Striker (vehicle floor surface)
20 seats (retractable vehicle seats)
21 Seat 22 Seat Frame (Seat)
23 connection end 24 support bracket 24a stopper piece 24b support recess 25 front leg 26 recess groove 27 rear leg 28 recess groove 29 stopper piece 30 first synchronization link 31 second synchronization link 32 first support link 33 second support Link 34 Link mechanism 38 Backrest 39 Backrest frame (backrest)
40 Reclining mechanism 42 Rotating shaft 43 Pressing lever (pressing member)
45 Rotating shaft 46 Unlocking lever 47 Pressed pin 50 Release lever S1 S2 Tension spring SW Unlocking switch T Covered tube W Cable

Claims (2)

A seat that can rotate with respect to the vehicle floor including the seat installation surface and the storage recess, and a backrest that is rotatably connected to the seat;
When the seat is connected to the seat so as to be rotatable and the seat is located immediately above the seat installation surface, the seat is located at a use position supported by the seat installation surface, and the seat is located within the storage recess. A front leg and a rear leg located in a folding position substantially parallel to the seat;
A locked state in which the backrest and the seat are rotatably connected, and the backrest is held in an upright position substantially orthogonal to the seat, and a retracted position in which the backrest is substantially parallel to the seat A reclining mechanism that shifts to an unlocked state that rotates until
The front reclining mechanism is linked to the reclining mechanism via a cable so that it can rotate between a lock holding position that allows the reclining mechanism to enter the locked state and a lock release position that allows the unlocked state to shift. One of the legs and one of the seats, a lock release lever that is urged to rotate toward the lock holding position,
The front legs, which are separated from the unlocking lever when the front legs and the rear legs are in the use position, and rotate to the unlock position by contacting the unlock lever when rotating from the use position to the folding position; A pressing member provided on one of the rear legs and the other of the seats;
A retractable vehicle seat comprising: The retractable vehicle seat according to claim 1,
The pressing member is
It can rotate between the pressable position and the retracted position, and is urged to rotate toward the retracted position,
When the front leg and the rear leg rotate from the use position to the folding position, the lock release lever is rotated to the lock release position while being in the pushable position, and then the lock release lever is climbed over. When the front and rear legs are separated from the lock release lever and rotate from the folded position to the use position, they come into contact with the lock release lever and rotate to the retracted position against the rotational biasing force. A retractable vehicular seat that gets over the lock release lever and returns to the pressable position by the rotation biasing force after getting over the lock release lever.

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