JP5071839B2 - Folding and reclining type automotive seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automobile seat allowing a seating person to operate a folding mechanism with an operation lever while confirming the extent of the pushing pressure of a back upper part toward the back with the person's upper body leaning against the seat back, simultaneously operate the both mechanisms including a reclining mechanism and easily adjust the position of the whole seat back including the back upper part into an optimal attitude. <P>SOLUTION: A reclining mechanism 4 for adjusting the angle of the seat back 2 or reclining it 2 into the front/rear and the folding mechanism 7 for frontward drawing up the back upper part 2a of the seat back 2 from the back lower part 2b are operated by separate operation levers 6 and 9 respectively. The operation levers 6 and 9 of the reclining mechanism 4 and the folding mechanism 7 are separately disposed in the right/left sides of the seat cushion within such a range of the seat cushion 3 as allowing the seating person in a seating posture to individually or simultaneously operate them regardless of the angle of the seat back 2. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a vehicle seat equipped with a reclining mechanism for a seat back and a folding mechanism for a seat back so as to be operable by individual operation levers.

  In an automobile seat, a reclining mechanism capable of adjusting the angle of the seat back or tilting back and forth is provided. The reclining mechanism is provided between the lower side of the seat back and the rear side of the seat cushion with the pivot of the seat back as the operating axis, and is operable by an operating lever disposed on either the left or right side of the seat cushion. ing.

  Some of them include a folding mechanism that is provided with the reclining mechanism and that allows the upper part of the seat back to stand forward from the lower part of the back. This center folding mechanism is provided between the lower side of the upper part of the back and the upper side of the lower part of the back with the pivot of the upper part of the back as the operating shaft, and is connected by an operation lever arranged on either the left or right side of the seat back with a wire cable. Therefore, it is equipped to be operable (Patent Document 1).

  Thus, in an automobile seat equipped with an operation lever, a seated person operates the folding mechanism with the operation lever, and since the operation lever is disposed on one side of the seat back, the upper body is raised backward. Since the hand is extended to one side of the seat back, it is necessary to operate the lever.

In the lever operation, the seat folds with the upper body leaning on the seat back, and the middle folding mechanism is operated with the control lever while checking the pressure on the back by the upper part of the back and the degree of the middle folding. I can't do anything. In addition, both mechanisms including the reclining mechanism cannot be operated at the same time by each operation lever, and the pressure on the back by the entire seat back including the upper part of the back must be adjusted by individual lever operation, so the operability is poor and the seat It is difficult to adjust the back to the optimal position.
JP 2001-277717 A

  The problem to be solved by the present invention is that the seat can be operated with an operating lever while the seated person sits with his upper body leaning against the seat back while confirming the pressure on the back by the upper part of the back. In addition, both the mechanism including the reclining mechanism can be operated simultaneously by the respective operation levers, the operability is good, and the vehicle seat is configured to easily adjust the position of the entire seat back including the upper part of the back to the optimum posture. .

The present invention relates to an automobile seat having a reclining mechanism in which the angle of the seat back can be adjusted by lever operation or tilted back and forth, and an intermediate folding mechanism in which the upper portion of the seat back can be raised forward from the lower portion of the back by lever operation. In
Reclining mechanism, the operating levers of the center bending mechanism is Rutotomoni are disposed separately on the left and right sides of the seat cushion, regardless of the angle of the seat back, the seat's to back by the back upper part remains seated posture While confirming the degree of pressing , it is arranged in the area of the seat cushion that can be operated simultaneously by dividing both hands into the left and right sides of the seat cushion,
Each operation lever is provided in the same shape, and is disposed at the same position substantially opposite between both .
The center folding mechanism is operably equipped with an operation lever connected by a wire cable that is wired between a pivot shaft that protrudes forward from the lower portion of the back by lever operation and a lever support shaft. This is the first feature .

The present invention relates to an automobile seat having a reclining mechanism in which the angle of the seat back can be adjusted by lever operation or tilted back and forth, and an intermediate folding mechanism in which the upper portion of the seat back can be raised forward from the lower portion of the back by lever operation. In
The operation levers of the reclining mechanism and the folding mechanism are arranged separately on the left and right sides of the seat cushion , and the seated person stays in the seated posture regardless of the angle of the seat back to the back by the upper back. While confirming the degree of pressing , it is arranged in the area of the seat cushion that can be operated simultaneously by dividing both hands into the left and right sides of the seat cushion ,
A second feature of the operation lever of the folding mechanism is that the lever support shaft is disposed below the thigh of the occupant .

In addition, the present invention has the following features.

The distal end portion of the operation lever of the folding mechanism is provided at the center portion of the seat cushion .

The operation lever of the center folding mechanism is provided with the lever support shaft positioned at the center in the front-rear direction of the seat cushion .

The operation lever of the center folding mechanism is provided with the lever support shaft positioned at the center in the front-rear direction of the seat cushion .

The center folding mechanism is operably equipped with an operation lever connected by a wire cable wired between a pivot shaft that protrudes forward from the lower portion of the back by lever operation and a lever support shaft. ,
The said wire cable is arrange | positioned so that it may pass back rather than the pivot used as the rotation center of a reclining mechanism .

The center folding mechanism is operably equipped with an operation lever connected by a wire cable wired between a pivot shaft that protrudes forward from the lower portion of the back by lever operation and a lever support shaft. ,
The wire cable is provided along the seat back side frame .

The center folding mechanism is operably equipped with an operation lever connected by a wire cable wired between a pivot shaft that protrudes forward from the lower portion of the back by lever operation and a lever support shaft. ,
The wire cable is provided within a width in the front-rear direction of the back side frame .

The lever support shaft of the operation lever of the center folding mechanism is provided in front of the front end portion of the back side frame .

The operation lever of the folding mechanism is provided on a center line passing through the center of the upper body of the occupant .

The operation lever of the middle folding mechanism is provided in front of a center line passing through the center of the occupant's upper body .

  According to the seat back folding / reclining type automobile seat according to the present invention, the operation lever of the folding mechanism is disposed on the side of the seat cushion in the same manner as the operation lever of the reclining mechanism. Since the operation lever can be grasped in the sitting posture with the body leaning on the seat back, the folding mechanism can be operated according to the seating posture of the seated person while confirming the degree of pressing on the back by the upper part of the back.

  At the same time, the operation levers of both mechanisms are arranged separately on the left and right sides of the seat cushion, so that each mechanism can hold both operation levers in the sitting position regardless of the angle of the seat back. Can be operated at the same time with the control lever, and the entire seat back including the upper part of the back can be adjusted to the optimum posture with a simple operation.

  The illustrated automobile seat is shown as being equipped on the left side with a second seat of a right-hand drive vehicle. In the following description, “right” and “left” are based on the state in which the occupant is seated facing the front. FIG. 1 shows the same automobile seat as viewed from the left and right sides.

  The vehicle seat is composed of a headrest 1, a seat back 2, and a seat cushion 3, and the seat back 2 is placed on the rear side of the seat cushion 3 so that the angle can be adjusted or tilted back and forth by the reclining mechanism 4 from a normal seating state. It is supported.

  The reclining mechanism 4 is assembled between the lower side of the back side frame and the rear side of the cushion side frame 11, which will be described later, with the pivot 10 for standing and supporting the seat back 2 on the rear side of the seat cushion 3 as an operating shaft. Equipped. The reclining mechanism 4 is equipped to be operable by an operation lever 6 connected by a link bar 5 that spans between a pivot 10 and a lever spindle.

  The seat back 2 is divided and formed from a back upper portion 2a and a back lower portion 2b. In the seat back 2, the back upper portion 2a is assembled by the middle folding mechanism 7 so as to be able to stand forward from the back lower portion 2b.

  The middle folding mechanism 7 is assembled to the seat back 2 between the lower side of the upper side frame 13a and the upper side of the lower side frame 13b with the pivot 12 supporting the back upper portion 2a on the upper side of the lower back portion 2b as an operating shaft. Equipped with equipment. The center folding mechanism 7 is operably provided by an operation lever 9 connected by a wire cable 8 wired between the pivot 12 and the lever support shaft.

  The operation levers 6 and 9 are arranged separately on the left and right sides in the region of the seat cushion 3 that can be operated individually or simultaneously while maintaining the sitting posture regardless of the angle of the seat back. It is installed. As the rear left seat, the operation lever 6 of the reclining mechanism 4 may be disposed on the left side of the seat cushion 3, and the operation lever 9 of the center folding mechanism 7 may be disposed on the right side of the seat cushion 3.

  A seated person can operate while maintaining his / her seating posture is a normal seating posture or a seating posture in a state in which the seatback is tilted down, and is within an area where the hand of the seater reaches the operation levers 6 and 9. It means to arrange. As long as it is within that region, the operation levers 6 and 9 may be slightly shifted to the front and rear positions, or may be at substantially the same position. As the operation levers 6 and 9, a pull-up rotation type of the same form is provided.

  As the locking device of the reclining mechanism 4, a known device (for example, Japanese Patent Laid-Open No. 8-253063) is provided. Further, a locking device similar to the reclining mechanism can be provided as a locking device for the folding mechanism 7. The locking devices of the reclining mechanism 4 and the middle folding mechanism 7 are provided on the left and right via the pivots 10 and 13 and are assembled so as to be operable on the other side in synchronism with one side operated by the operation levers 6 and 9. The seat back 2 and the back upper part 2a are urged forwardly by a spiral spring (not shown).

  In the vehicle seat configured as described above, the operation levers 6 and 9 of the reclining mechanism 4 and the folding mechanism 7 are arranged separately on the left and right sides of the seat cushion 3, so that the seat The reclining mechanism 4 and the middle folding mechanism 7 can be operated individually or simultaneously by grasping and pulling the operating levers 6 and 9 with the hand while the seat 2 is in a seated state.

  When the angle of the seat back 2 is adjusted backward from the normal seating state, the left hand of the seat cushion 3 is placed on the left hand of the seat cushion 3 as usual with the seated posture in which the seat is leaning against the seat back 2 as shown in FIG. It is hung on the operation lever 6 disposed in the. If the operating lever 6 is grasped by hand and pulled up, the locking device of the reclining mechanism 4 can be unlocked, so that the angle of the seat back 2 can be adjusted backward. Of course, when the seated person is absent, the seat back 2 can be moved forward by the unlocking of the reclining mechanism 4.

  When the back upper portion 2a is stood forward from the normal seating state, the right hand is placed on the right side of the seat cushion 3 while the seated person is seated on the seat back 2 as shown in FIG. It is hung on the operating lever 9 provided. If the operating lever 9 is grasped by hand and pulled up, the locking device of the folding mechanism 7 can be unlocked, so that the back upper portion 2a can be raised forward.

  When the position of the entire seat back 2 including the upper back portion 2a is adjusted to the optimum posture, as shown in FIG. 4, the seat cushion 3 is held in the seated posture in which the seated person is leaning on the seat back 2. The control levers 6 and 9 are provided separately on the left and right sides. For this reason, both the mechanisms 4 and 7 can be operated simultaneously by the operation levers 6 and 9, and the position of the whole seat back 2 including the back upper part 2a can be adjusted to an optimal posture by a simple operation.

It is the left and right side view which shows the seat for vehicles concerning the present invention in the usual seating state. FIG. 2 is a left side view showing a state in which the angle of the seat back of FIG. 1 is adjusted backward by a reclining mechanism. FIG. 2 is a right side view showing a state in which a back upper part of FIG. FIG. 2 is a left side view of the entire seat back including the upper part of the back in FIG. 1 in a state of adjusting the position to an optimum posture by a reclining mechanism and a middle folding mechanism.

2 Seat Back 2a Back Upper 2b Lower Back 3 Seat Cushion 4 Reclining Mechanism 6 Reclining Mechanism Operation Lever 7 Middle Folding Mechanism 9 Middle Folding Mechanism Operation Lever

Claims (11)

In a vehicle seat provided with a reclining mechanism capable of adjusting the angle of the seat back by lever operation or tilting back and forth, and a folding mechanism capable of raising the back upper portion of the seat back forward from the lower portion of the back by lever operation,
Reclining mechanism, the operating levers of the center bending mechanism is Rutotomoni are disposed separately on the left and right sides of the seat cushion, regardless of the angle of the seat back, the seat's to back by the back upper part remains seated posture While confirming the degree of pressing , it is arranged in the area of the seat cushion that can be operated simultaneously by dividing both hands into the left and right sides of the seat cushion,
Each operation lever is provided in the same shape, and is disposed at the same position substantially opposite between both .
The center folding mechanism is operably equipped with an operation lever connected by a wire cable wired between a pivot and a lever support shaft that protrudes forward from the lower portion of the back by lever operation of the seat back. A seat back foldable and reclining type automotive seat. In a vehicle seat provided with a reclining mechanism capable of adjusting the angle of the seat back by lever operation or tilting back and forth, and a folding mechanism capable of raising the back upper portion of the seat back forward from the lower portion of the back by lever operation ,
The operation levers of the reclining mechanism and the folding mechanism are arranged separately on the left and right sides of the seat cushion , and the seated person stays in the seated posture regardless of the angle of the seat back to the back by the upper back. While confirming the degree of pressing , it is arranged in the area of the seat cushion that can be operated simultaneously by dividing both hands into the left and right sides of the seat cushion ,
An operation lever of the center folding mechanism is disposed with the operation lever positioned below the thigh of the occupant . The seatback middle-folding / recliner type automobile seat according to claim 1 , wherein a distal end portion of an operation lever of the middle-folding mechanism is provided at a central portion of the seat cushion . 4. The seat back middle folding / reclining type according to claim 3 , wherein the operation lever of the middle folding mechanism is provided with the lever support shaft positioned at a central portion in the front-rear direction of the seat cushion. 5. Automotive seat . 5. The seat back middle folding / recliner type automobile seat according to claim 1 , wherein an operation lever of the middle folding mechanism is provided at a center portion of the seat cushion in a front-rear direction. . The center folding mechanism is operably equipped with an operation lever connected by a wire cable wired between a pivot shaft that protrudes forward from the lower portion of the back by lever operation and a lever support shaft. ,
6. The seat back according to claim 1 , wherein the wire cable is disposed so as to pass behind a pivot that is a rotation center of a reclining mechanism. Sheet . The center folding mechanism is operably equipped with an operation lever connected by a wire cable wired between a pivot shaft that protrudes forward from the lower portion of the back by lever operation and a lever support shaft. ,
7. The seat back folding / recliner type automobile seat according to claim 1 , wherein the wire cable is provided along a seat back side frame . The center folding mechanism is operably equipped with an operation lever connected by a wire cable wired between a pivot shaft that protrudes forward from the lower portion of the back by lever operation and a lever support shaft. ,
The seatback folding and reclining automobile seat according to any one of claims 1 to 7, wherein the wire cable is provided within a width in a front-rear direction of a backside frame . 9. The seat back middle folding / reclining type according to claim 1, wherein the lever support shaft of the operation lever of the middle folding mechanism is provided in front of the front end portion of the back side frame. Automotive seat . 10. The seat back middle-folding / recliner type vehicle according to claim 1, wherein the operation lever of the middle-folding mechanism is provided on a center line passing through the center of the upper body of the seat. Sheet . 11. The seat back according to claim 1, wherein the operation lever of the center folding mechanism is provided in front of a center line passing through the center of the upper body of the seated person. Reclining car seat .

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