JP4211546B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat that can be flipped up in a direction perpendicular to a vehicle body floor and is detachably supported by the vehicle body floor.

BACKGROUND ART A vehicle seat that can be flipped up vertically with respect to a vehicle body floor and is detachably supported by the vehicle body floor is employed as a rear seat of a van type vehicle (see, for example, Patent Document 1).
In such a seat 50, from the state shown in FIG. 9, the seat back 50a is folded in the direction of the seat cushion 50b as shown in FIG. 10, and the seat cushion 50b is rotated forward with respect to the vehicle body floor 51. The luggage loading space on the vehicle body floor 51 is secured, or the entire seat 50 is removed from the vehicle body floor 51 to secure the luggage loading space on the vehicle body floor 51.

  Further, the seat 50 uses a connecting device 54 constituted by a striker 52 disposed on the vehicle body floor 51 and a locking means 53 disposed on a seat cushion frame (not shown) of the seat cushion 50b. The lower part of the front end of 50b is turnably and detachably supported on the vehicle body floor 51, and the striker 55 disposed on the vehicle body floor 51 on the rear side of the seat cushion 50b and the seat cushion frame (see FIG. A lower part of the rear end of the seat cushion 50b is detachably supported on the vehicle body floor 51 by using a locking device 57 constituted by a locking means 56 disposed on the vehicle body floor (not shown).

In the coupling device 54, as shown in FIGS. 11 and 12, a seat cushion 58 (not shown) is provided with a seat arm 58, and a recess 58a formed at the front end of the seat arm 58 is used as a lock pin portion of the striker 52. The seat 50 is rotatably supported by being fitted to the 52a. In the connecting device 54, when the seat 50 is rotated perpendicularly to the floor surface of the vehicle body floor 51, the seat 50 can be detached from the striker 52 as shown in FIG.
In this connecting device 54, a lock lever 59 is rotatably disposed on the seat arm 58, and a rear end 59a of the lock lever abuts against a stopper 60 installed on the vehicle body floor 51, so that the lock lever 59 is in FIG. 12 and FIG. 12, the claw 59b formed at the tip of the lock lever is positioned so as to close the recess 58a, as shown in FIG. 11, so that the striker 52 is placed in the recess 58a. The lock pin portion 52 a is restrained to prevent the seat 50 from coming off the striker 52.
JP-A-11-321392

  However, in the above-described conventional vehicle seat 50, it is necessary to install the stopper 60 on the vehicle body floor 51, so that not only the number of parts increases, but also the cost increases and the installation work becomes complicated.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a vehicle seat capable of reducing the number of parts, reducing costs and improving mounting workability. .

  The vehicle seat according to claim 1, wherein a connecting device that rotatably and detachably attaches the seat to the vehicle body floor is disposed between the seat and the vehicle body floor. Locking means for the coupling device is disposed on either one of the floors, and a striker is disposed on either the seat or the vehicle body floor. The locking means is connected to the seat arm and the seat arm. The striker includes a lock pin portion that is locked by being engaged with the seat arm and the seat lock lever, and a stopper portion that operates the seat lock lever. When the seat is attached to the vehicle body floor in a seatable state, the seat lock lever is Contact with the stopper portion of the mosquitoes so that locking the striker.

  According to a second aspect of the vehicle seat of the present invention, in the first aspect of the invention, the striker is formed using a long member having a circular cross section, the lock pin portion and the stopper portion are arranged in parallel to each other, and the lock The end portions of the pin portion and the stopper portion are continuously provided by a substantially U-shaped leg portion comprising a bottom portion and a standing portion extending upward from the bottom portion, and the lock pin portion and the stopper portion are The sheet is arranged so as to extend in a direction perpendicular to the rotation direction of the sheet.

  In the vehicle seat of claim 3, in the invention of claim 2, the lock pin portion and the stopper portion of the striker are arranged in front of and behind the vehicle so as to sandwich the rotation shaft of the seat lock lever in plan view.

  According to a fourth aspect of the present invention, there is provided a vehicle seat according to the third aspect of the invention, wherein a cushioning member is disposed on the striker, and the cushioning member is placed on the seat cushion in a state where the seat is flipped up vertically with respect to the vehicle body floor. It is in contact with the frame.

  In the first aspect of the invention, since the stopper that contacts the seat lock lever is provided integrally with the striker, no separate parts are required as a stopper, the number of parts can be reduced, the cost is reduced, and the mounting work is omitted. Is also possible.

  In the invention of claim 2, since the striker has a simple shape, it can be easily formed by bending.

  In the invention of claim 3, in a seatable state, the seat lock lever is pressed against the lock pin portion of the striker by the reaction of the stopper portion of the striker, so that a reliable locked state is ensured.

  According to the fourth aspect of the present invention, since the striker is provided with the buffer member, the striker is supported on the vehicle body floor without rattling in a state where the seat is flipped up vertically with respect to the vehicle body floor.

  Hereinafter, a vehicle seat according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a state in which a vehicle seat according to an embodiment of the present invention is rotated forward from the back side, and FIG. 2 shows an installation state of a vehicle seat coupling device according to an embodiment of the present invention. 3 is a conceptual side view, FIG. 3 is a conceptual plan view showing an installation state of a vehicle seat coupling device according to an embodiment of the present invention, and FIG. 4 is a conceptual perspective view of the coupling device shown in FIGS. FIG. 5 shows an operation mode of the vehicle seat according to the embodiment of the present invention. FIG. 6 is a conceptual side view of the vehicle seat according to the embodiment of the present invention. FIG. 7 is a conceptual side view immediately before returning the seat to the seatable state, and FIG. 7 is a conceptual side view showing the operating state of the vehicle seat according to the embodiment of the present invention. FIG.

In the vehicle seat 1 according to the embodiment of the present invention, as shown in FIGS. 1 to 7, the locking means 3 of the coupling device 2 is disposed at the lower front end of the seat cushion 1 a, and the coupling device 2 is mounted on the vehicle body floor 4. The front striker 5 is disposed, and the connecting device 2 allows the front end of the seat cushion 1a to rotate with respect to the vehicle body floor 4, and the seat 1 is flipped up vertically with respect to the vehicle body floor 4. The locking means 7 of the locking device 6 is disposed at the lower rear end of the seat cushion 1a, and the rear striker 8 of the locking device 6 is disposed on the vehicle body floor 4. The locking device 6, the rear end of the seat cushion 1a is detachably supported with respect to the vehicle body floor 4. In FIG. 1, the side portion of the front striker 5 of the coupling device 2 is covered with a resin cover 9 in order to improve the appearance.
In the vehicle seat 1, the seat back 1 b is folded toward the seat cushion 1 a, and the locking means 7 of the seat cushion 1 a is released from the rear striker 8, and is rotated about the connecting device 2. 1 is raised substantially vertically with respect to the surface of the vehicle body floor 4 so as to be held up.

  In the connecting device 2 for the seat 1, as shown in FIGS. 2 and 3, the seat cushion side bracket 11 is fixed to the seat cushion frame 10 by welding or the like, and the vehicle body floor side bracket 13 is attached to the vehicle body floor 4 with bolts 12. Tightened and fixed by etc.

As shown in FIG. 4, the front striker 5 is formed in a simple shape by bending front and rear portions of a long shaft-like member having a circular cross section and forming a rectangle in plan view. That is, the front striker 5 has a lock pin portion 5a located on the vehicle front side, a leg portion 5b located on the middle, and a stopper portion 5c located on the vehicle rear side, and the leg portion 5b comprises a bottom portion 5b _3. And the upright portions 5b ₁ and 5b ₂ erected upward from the bottom portion are formed in a substantially U shape in a side view, and the upper end of _one upright portion 5b ₁ is connected to both ends of the lock pin portion 5a. The other standing portion 5b ₂ of the leg portion 5b is formed integrally with the stopper portion 5c. Further, the lock pin portion 5a and the stopper portion 5c are disposed so as to extend in a direction perpendicular to the rotation direction of the seat 1, and the lock pin portion 5a and the stopper portion 5c are disposed in parallel to each other. ing.
The front striker 5 is fixed to the vehicle body floor side bracket 13 by welding or the like.

As shown in FIG. 4, the locking means 3 includes an inverted L-shaped seat arm 15 having a mounting piece 14 formed by bending an upper portion at a right angle toward the inside of the seat, and a shaft 16 at an intermediate portion of the seat arm 15. And a plate-like sheet lock lever 17 that is rotatably held by using the.
An upper jaw 15a and a lower jaw 15b are formed at the distal end portion of the seat arm 15 so as to protrude in a direction opposite to the axis 16 with a space therebetween, and a recess 18 is defined by the upper jaw 15a and the lower jaw 15b. (See FIG. 5).
Further, a claw 17a that protrudes in the turning direction is formed at the front end portion of the seat lock lever 17 located on the front side of the vehicle, and the front striker 5 is provided at the rear end portion located on the rear side of the vehicle. A contact portion 17b that contacts the stopper portion 5c is formed (see FIG. 5).
The mounting piece 14 of the seat arm 15 is fixed to the seat cushion side bracket 11 by a bolt and nut fastener 19, and the front striker 5 is fixed to the vehicle body floor side bracket 13 by welding or the like at the bottom. Yes.

  Further, in the coupling device 2, the buffer member 20 formed of rubber or the like is disposed on the vehicle body floor side bracket 13, and the buffer member 20 is in a state where the seat 1 is flipped up vertically with respect to the vehicle body floor 4. The seat 1 is supported by contacting the bracket 11 on the seat cushion side of the seat frame 10 of the seat cushion 1a.

In the vehicle seat 1 provided with such a connecting device 2, the recess 18 defined between the upper jaw 15 a and the lower jaw 15 b of the seat arm 15 is fitted to the lock pin portion 5 a of the front striker 5. The front end portion of the seat cushion 1a is rotated around the lock pin portion 5a.
As shown in FIG. 5, when the seat cushion 1 a is standing substantially perpendicular to the floor surface 4 a of the vehicle body floor 4, the pawl 17 a of the seat lock lever 17 is moved to the lock pin portion 5 a of the front striker 5. The seat 1 can be moved upward by being detached from the seat.
Next, as shown in FIG. 6, when the seat cushion 1a in this state is rotated clockwise around the lock pin portion 5a of the front striker 5, the contact portion 17b of the seat lock lever 17 is moved to the front striker. When the seat cushion 1a is rotated clockwise, the seat lock lever 17 is rotated counterclockwise about the shaft 16. When the seat cushion 1a is further rotated in the clockwise direction, as shown in FIG. 7, the seat lock lever 17 is further rotated in the counterclockwise direction, and the claw 17a is moved to the lock pin portion 5a of the front striker 5. Engaged.
In this state, the upper arm 15 a and the lower jaw 15 b of the seat arm 15 are positioned so as to be sandwiched from above and below the lock pin portion 5 a of the front striker 5, and the claw 17 a of the seat lock lever 17 is at the front portion of the front striker 5. The upper jaw 15a and the lower jaw 15b are positioned so as to close the tip openings. Therefore, the lock pin portion 5a is restrained by the upper jaw 15a and lower jaw 15b of the seat arm 15 and the claw 17a of the seat lock lever 17, so that the seat 1 is seated and the seat cushion 1a is against the vehicle floor 4. It is supported so that it cannot be detached.

  The locking device 6 for locking the rear end of the seat cushion 1a to the vehicle body floor 4 is the same as the conventional one, and the locking means 7 disposed at the rear end of the seat cushion 1a in the seatable state of the seat 1 is provided. The rear striker 8 disposed on the vehicle body floor 4 is engaged and locked.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
For example, FIG. 8 shows a modification of the front striker 5. The front striker 5 is welded to a flat bracket 21, and the bracket 21 is installed on the floor surface of the vehicle body floor 4 by using bolts 22 or the like.

  In the above-described embodiment, the locking means 3 of the coupling device 2 is installed on the seat cushion 1a side, and the striker 5 is installed on the vehicle body floor 4 side. The striker 5 may be installed on the seat cushion 1a side.

It is a perspective view which shows the state which rotated the vehicle seat which concerns on embodiment of this invention ahead from the back surface side. It is a conceptual side view which shows the installation state of the connection apparatus of the vehicle seat which concerns on embodiment of this invention. It is a conceptual top view which shows the installation state of the connection apparatus of the vehicle seat which concerns on embodiment of this invention. FIG. 4 is a conceptual perspective view of the coupling device shown in FIGS. 2 and 3. The operation | movement aspect of the vehicle seat which concerns on embodiment of this invention is shown, and it is a conceptual side view of the state which fell the seat ahead. FIG. 3 is a conceptual side view showing an operation mode of the vehicle seat according to the embodiment of the present invention and immediately before returning the seat to a seatable state. The operation | movement aspect of the vehicle seat which concerns on embodiment of this invention is shown, and it is a conceptual side view which made the seat the seatable state. It is a perspective view which shows the modification of the front part striker of the vehicle seat which concerns on embodiment of this invention. It is a perspective view which shows the conventional vehicle seat notionally. It is a perspective view which shows the state which rotated the sheet | seat of FIG. 9 ahead from the back surface side. FIG. 10 is a conceptual side view showing the sheet coupling device in the state of FIG. 9. FIG. 11 is a conceptual side view showing the sheet connecting device in the state of FIG. 10.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle seat 1a Seat cushion 1b Seat back 2 Connecting device 3 Locking means 4 Car body floor 4a Floor surface 5 Front striker 5a Lock pin part 5b Leg part 5c Stopper part 6 Locking device 7 Locking means 8 Rear striker 9 Resin cover 10 Seat cushion frame 11 Bracket 12 Bolt 13 Bracket 14 Mounting piece 15 Seat arm 15a Upper jaw 15b Lower jaw 16 Shaft 17 Seat lock lever 17a Claw 17b Abutting portion 18 Recessed portion 19 Fastener 20 Buffer member 21 Bracket 22 Bolt

Claims (4)

In a vehicle seat in which a coupling device for attaching the seat to the vehicle floor so as to be rotatable and detachable is disposed between the seat and the vehicle floor.
A locking means for the connecting device is disposed on either the seat or the vehicle body floor, and a striker is disposed on the other of the seat or the vehicle body floor,
The locking means includes a seat arm and a seat lock lever that is rotatably disposed on the seat arm.
The striker is integrally formed with a lock pin portion that engages and locks with the seat arm and the seat lock lever, and a stopper portion that operates the seat lock lever.
The vehicle seat, wherein when the seat is attached to the vehicle body floor in a seatable state, the seat lock lever abuts against a stopper portion of the striker to lock the striker. The striker is formed using a long member having a circular cross section, the lock pin portion and the stopper portion are arranged in parallel to each other, and the end portions of the lock pin portion and the stopper portion are separated from the bottom portion and the bottom portion. The lock pin portion and the stopper portion are extended in a direction perpendicular to the rotation direction of the seat, and are connected by a substantially U-shaped leg portion composed of a standing portion extending upward. The vehicle seat according to claim 1, wherein the vehicle seat is arranged. The vehicle seat according to claim 2, wherein the lock pin portion and the stopper portion of the striker are arranged in front of and behind the vehicle so as to sandwich the rotation shaft of the seat lock lever in plan view. The shock absorber is disposed on the striker, and the shock absorber is brought into contact with the seat cushion frame in a state in which the seat is flipped up vertically with respect to the vehicle body floor. The vehicle seat described in 1.

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