JP2820941B2 - Front seat rotating device for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) According to the present invention, a driver's seat and a passenger's seat can each take a frontward state facing a vehicle body front and a seating state facing a vehicle body rearward. The present invention relates to a rotating device for a front seat for an automobile, which can take a forward leaning state in which the seat back leans forward.

(Prior Art) In a multipurpose automobile, both a driver's seat and a passenger's seat can take a forward facing state facing the vehicle body and a seating state facing the rear body, and the driver's seat is located in front of the seat back. There is a known one that can take a forward leaning state.

As such a rotating apparatus for a front seat for an automobile, as described in, for example, Japanese Patent Application Laid-Open No. 59-227528, the seating state of the passenger side seat is the seating state of the driver side seat, and The front-facing state on the seat side is based on the front-facing state of the passenger side seat, and is formed by connecting an operating lever for detecting the position of the seat and an engaging pin for engaging with the rotary release lever with a remote control wire. It has been known.

(Problems to be Solved by the Invention) However, in such a rotating device, both the driver's seat and the passenger's seat need to be in a seated state or a forward-facing state. Therefore, the two seats must always be rotated simultaneously. Operation is troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rotating device of a front seat for an automobile in which only a passenger seat can be placed in a seated state without impairing safety.

(Means for Solving the Problems) In order to achieve the above object, according to the present invention, both the driver's seat and the passenger's seat can take a forward facing state facing the front of the vehicle body and a facing state facing the rear side of the vehicle body, In addition, the driver's seat is intended for a rotating device of an automobile front seat that can assume a forward leaning state in which a seat back is tilted toward a seat cushion.

A first rotation control means for locking or unlocking the rotation of the driver seat, and a second rotation control means for locking or unlocking the rotation of the passenger seat.
A lock that is linked to the rotation control means and the first and second rotation control means, and releases the rotation lock of the driver seat and the passenger seat by each rotation control means by tilting the seat back of the driver seat forward. Release means, driver seat position detection means for detecting the rotation state of the driver seat, passenger seat position detection means for detecting the rotation state of the passenger seat,
Locking means for locking the seat back of the driver's seat in a forward leaning state, and locking means for receiving an output from each of the seat position detecting means when the front passenger seat is in a seated state and the driver's seat is in a forward facing state. To lock the driver's seat back in the forward leaning state while releasing the driver's seat from the forward leaning locked state when the driver's seat is in the seated state. It is characterized by being.

(Operation) When the front passenger seat is in the seated state and the driver seat is in the forward state, the control means operates the locking means to lock the seat back of the driver seat in the forward tilted state, while the driver seat is in the seated state. , The seat back can be released from the forwardly inclined state. Therefore, even if the driver's seat is in the forward facing state, the car cannot be run if the passenger's seat is in the facing state.

In addition, since the driver's seat does not lean forward during traveling, the passenger's seat cannot be in the sitting state.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1 showing a driver seat, reference numeral 1 denotes a driver seat, which comprises a seat cushion 1a and a seat back 1b. The driver's seat 1 is mounted on the vehicle body floor via support bases 2 and 2, and the seat 1 is provided between the seat 1 (seat cushion 1 a) and the support bases 2 and 2 in the vehicle longitudinal direction. Slide device 3 capable of sliding and driver seat 1
A first rotation control device 5 that locks or unlocks the rotation of the vehicle by operating a rotation release lever 4 is provided, and the driver's seat 1 takes a forward state facing the front of the vehicle body and a seating state facing the rear of the vehicle body. Has become.
Incidentally, the passenger seat is similarly configured including the second rotation control means.

In addition, as shown in FIG.
Has a first bracket 6 and a seat back 1b has a second bracket.
Each of the brackets 7 is attached,
7 is rotatably connected to the seat cushion by operating the reclining operation lever 8 shown in FIG.
The seat back 1b is tilted forward with respect to 1a (see chain line in Fig. 1)
It is possible to be.

As shown in FIG. 3, a stopper plate 12 is attached to the rear of the first bracket 6 via a mounting bracket 11.
Are rotatably mounted on the stopper plate 12.
Is a stop portion that contacts the stopper bracket 15 described later.
12a, and a wire connecting portion 12b connected to the first wire 13 that is pulled when the passenger seat is in the seated state. Thus, the movement of the first wire 13 causes the stopper plate 12 to assume a stop position where the stop portion 12a is substantially horizontal and a neutral position where the stop portion 12a is substantially vertical.

A stopper bracket is fixedly mounted on the second bracket 7, and when the seat back 1b is in the forwardly inclined state and the stopper plate 12 is at the stop position, the seat back is brought into contact with the stopper bracket 15 and the stopper plate 12 in the seat back.
Locking means is provided for locking the seat back 1b of the driver's seat 1 in a forwardly inclined state so that the driver 1b cannot stand up.

In addition, the cushion frame of the above seat cushion 1a
As shown in FIG. 4, a base end of a movable plate 23 having a substantially U-shaped cross section is pivotally attached to the base 21 via a mounting bracket 22, and is attached to a distal end of the movable plate 23. Is rotatably supported by a rotating roller 24.

The movable plate 23 has a spring 25 interposed between its distal end portion and the cushion frame 21, and is constantly urged so that the stopper 26 fixed to the upper portion of the movable plate 23 comes into contact with the cushion frame 21. I have.

An intermediate portion of the first wire 13 is engaged with the rotation roller 24 at a lower side thereof. In addition, movable plate 23
The driver's seat 1 is attached to the mounting bracket 27 fixed to the side of the driver's seat.
The second wire 28, which is pulled when is in the forward state, is connected.

The first and second wires 13 and 28 are covered with outer cables 13A and 28A, respectively.
Are attached to the cushion frame 21 by support brackets 29.

As for the seat position detecting means for detecting the facing state of the passenger seat, as shown in FIG. 5, a turntable 31A to which a seat cushion is attached is rotatably attached to a turntable 32A on the vehicle body floor side. Become. Then, while the detection bracket 33 is fixedly mounted on the turntable 31A, the detection plate 35 is rotatably supported by the rotation base 32A via the mounting bracket 34, and when the passenger seat is in the seated state, One end of the detection plate 35 abuts and engages the detection bracket 33, and pulls the first wire 13 connected to the other end.

Further, an engagement member 36 extends below the turntable 31A, a guide member 37 is fixed to the rotation base 31A to form a rail portion with the rotation base 31A, and the engagement member 36 is attached to the rail portion. Are engaged with each other so that the rotary table 31A is rotationally guided with respect to the rotary base 32A.

Note that the driver's seat side also has the same configuration of the seat position detecting means.
The wire 28 is pulled.

Further, the first rotation control device 5 for controlling the rotation of the driver's seat 1 is configured as shown in FIG. In other words, the striker 41 fixed to the rotary table 31B and extending downward engages with the hook member 42 rotatably attached to the rotary base 32B.

A holding member 43 is attached above the hook member 42, and the striker 41 and the hook member
The striker 41 does not come off the hook member 42 when engaged with the hook 42.

In addition, a base member 44 is fixed to the turntable 31,
Swing levers 45 and 46 are swingably connected to the base member 44 at predetermined intervals. The swing levers 45 and 46 are also connected by a link 47.

A connecting wire 48 having one end connected to the second bracket 7 of the seat back 1b is connected to the one swing lever 45.
The other end of the seat back 1b (see FIG. 7) is connected, and the pulling operation of the connecting wire 48 by the forward tilt of the seat back 1b allows the rotation of the hook member 42 by the operation of the rotary release lever 4 (the seat rotation allowable position (see FIG. 7). (See FIG. 6 chain line) (lock release means). Although not shown, the passenger seat similarly takes a rotation allowable position that allows the rotation of the hook member by the pulling operation of the connection wire 48 by the forward inclination of the seat back 1b.

A spring 49 is provided between the link 47 and the rotary table 31B, and the swing lever 45 is always hooked.
It is urged in the direction that inhibits the rotation of 42 (the direction in which the rotation is locked).

A spring 50 is also interposed between the hook member 42 and the rotation base 32B, and constantly biases the hook member 42 in the engagement direction.

In the above-described configuration, if the seat back 1b of the driver's seat 1 is tilted forward, the connection wire 48 is pulled by the rotation of the second bracket 7, and the swing lever 45 is rotated to allow the seat to rotate. Since it is in the position (see the chain line in FIG. 6), the rotation of the hook member 42 is allowed by the operation of the rotary release lever 4, and the driver's seat 1 can be placed in the seated state. At this time, the swing lever on the passenger seat side is also in the seat rotation allowable position, so that the rotation lock of the passenger seat is released and the passenger seat can be rotated.

Further, when the passenger seat is in the facing state, the first wire 13 is pulled by the engagement relationship between the detection bracket 33 and the detection plate 35. In this state, when the driver's seat 1 is in the forward facing state, the second wire 28 is also pulled by the engagement relationship between the detection bracket and the detection plate on the driver's seat side,
The movable plate 23 is rotated downward. Accordingly, the first wire 13 is strongly pulled downward by the rotating roller 24 of the movable plate 23 (see the chain line in FIG. 4), and the stopper plate 12 is rotated from the neutral position to the stop position.

As a result, even if an attempt is made to raise the seat back 1b of the driver's seat 1, the stopper bracket 15 abuts and engages with the stopper plate 12, and the seat back 1b cannot be raised. If the driver's seat 1 is in the seated position, the second wire 28 is loosened, so that the stopper plate 12 rotates to the neutral position, and the seat back 1b can be raised.

Therefore, when the front passenger seat is in the seated state, the driver seat 1 is locked in the forwardly inclined state, so that the automobile cannot be driven and the safety of the passenger in the front passenger seat is ensured.

A swing lever for the driver's seat 1 and the passenger's seat
Since the rotation lock cannot be released by rotating the seat back 1b of the driver's seat 1 forward due to 45, the rotation of the seat cannot be performed in a running state, and the safety can be further improved.

Further, if the driver's seat 1 is tilted forward and the passenger's seat is in the seated position, the seat back of the driver's seat 1 is provided.
Since the seat back 1b is locked in the forwardly inclined state and the seat back 1b cannot be raised to be in the driving state, theft can be easily prevented by doing so.

(Effect of the Invention) As described above, according to the present invention, when the passenger seat is in the seated state and the driver's seat is in the forward state, the locking means is operated to lock the seatback of the driver's seat in the forwardly inclined state, Since the locked state of the seat back can be released when the driver's seat is seated, the vehicle cannot be driven when the passenger seat is in the seated state, and the safety of the passenger in the passenger seat can be ensured. In addition, since the rotation lock of the driver's seat and the passenger's seat cannot be released unless the seat back of the driver's seat is tilted forward,
The seat cannot be rotated in the running state, and the safety is improved from this point as well.

Further, if the driver seat is tilted forward and the passenger seat is seated, the seat back of the driver seat is locked in the forward tilted state, so that theft can be easily prevented.

[Brief description of the drawings]

1 is a perspective view of a driver's seat, FIG. 2 is a side view showing the relationship between a first bracket and a second bracket, and FIG. FIG. 4 is a front view showing a movable plate, FIG. 5 is an explanatory view of a sheet position detecting means, FIG. 6 is an explanatory view of a first rotation control means, 7
The figure is a side view of the reclining mechanism. 1 ... Driver seat, 2 ... Seat cushion, 1b ...
Seat back, 12 Stopper plate, 13 First wire, 15 Stopper bracket, 23 Movable plate, 28 Second wire, 33 Detection bracket, 35
Detecting plate, 48 …… Connection wire.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-11127 (JP, A) JP-A-62-6840 (JP, A) JP-A-62-6839 (JP, A) JP-A-61-6839 202934 (JP, A) JP-A-59-227528 (JP, A) JP-A-59-99832 (JP, U) JP-A-1-148930 (JP, U) JP-A-61-127048 (JP, U) Japanese Utility Model Application No. Sho 59-105527 (JP, U) Japanese Utility Model Application No. Sho 62-137768 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60N 2/14

Claims (1)

(57) [Claims] A driver seat and a front passenger seat can both assume a forward facing state in which the vehicle body faces forward and a seating state in which the vehicle body faces backward, and the driver seat has a forwardly inclined state in which the seat back is tilted toward the seat cushion. A first rotation control means for locking or unlocking the rotation of the driver seat, a second rotation control means for locking or unlocking the rotation of the passenger seat, Unlocking means linked to the first and second rotation control means for unlocking the rotation of the driver seat and the passenger seat by each rotation control means by tilting the seat back of the driver seat forward; A driver seat position detecting means for detecting a rotation state of the driver seat; A passenger seat position detecting means for detecting a rotation state of the driver seat, a locking means for locking the seat back of the driver seat in a forwardly inclined state, and receiving an output from each of the seat position detecting means, When the driver's seat is in the seated state, the locking means is operated to lock the seatback of the driver's seat in the forward tilted state when the driver's seat is in the forward facing state, while the driver's seat is locked when the driver's seat is in the seated state. And a control means for releasing a forward tilt lock state of the seat back.