JPH0637005Y2 - Car seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle seat, and more particularly, to a structure of a seat provided with side supports capable of varying the inclination angle between opposing seats.

(Prior Art) As is well known, in a vehicle seat, for example, a support projecting forward is provided at both ends of the seat back, and this support prevents the occupant's sitting posture from collapsing in the vehicle width direction. There is a structure to prevent it.

That is, FIG. 5 is a diagram showing a structure of a seat when the above-mentioned side support is used for a seat back,
In the figure, the support 1 has a structure in which the inclination angle can be varied on both sides of the seat back 2.

The support 1 has an angle varying mechanism 3 composed of a link mechanism at the bottom thereof. The varying mechanism 3 is connected to the swinging pieces 3A integrated with the bottom of each support 1 and between these swinging pieces 3A. Member provided on one of the transmitted transmission rod 3B and the swinging piece 3A
Composed of 3C and.

The swinging piece 3A described above is, for example, the back plate 2A of the seat back 2.
Is rotatably and pivotally supported on a cantilever-shaped support rod 2B that is fixed to one of the swinging pieces 3A, one of the swinging pieces 3A has a center portion as a rotation supporting portion, and the other 3A2 has a rotating portion. One end is a rotation support part.

Further, between one end of one side 3A1 of the swing piece 3A and the free end of the other side 3A2, there is provided a transmission rod 3B which is set to a shape capable of transmitting the swing of the swing piece 3A1 to the free end of the other side 3A2. It is worn.

Further, the above-mentioned actuating member 3C is located on the side facing the one end of the swinging piece 3A, one of the swinging pieces 3A, with the central portion which is the rotation supporting portion interposed therebetween, and is pulled out to the receiving member 3C1 fixed to the end portion. The seat back 2 is formed by a screw portion formed on a part of the rotating shaft 3C2 having a fixed base portion in the axial direction.
It can be moved back and forth in the axial direction by being screwed onto a part of the back plate 2A.

The operation member 3C is moved back and forth by rotating the operation knob 3C3 fixed at one end in the axial direction of the rotating shaft 3C2 penetrating the outer skin of the side support and protruding outward.

(Problems to be solved by the invention) By the way, in the seat having such a structure, since the inclination angle of the support 1 obtained by rotating the operation knob 3C3 is set once and is not changed, the traveling There was a problem with the holdability of the passengers at that time.

That is, for example, when traveling on a paved road and when traveling on a bad road such as an unpaved road, vibration transmitted to the vehicle body is different, so when the inclination angle of the support is set for a bad road, When driving on a paved road, the holding force due to that angle becomes relatively strong, so the occupant can not be overwhelmed, and conversely, when setting a tilt angle for a paved road and traveling on a bad road, firmly It becomes impossible to obtain the hold. Therefore, it may be necessary to readjust the inclination angle of the support according to the running condition, which makes it difficult to obtain a comfortable riding feeling.

Therefore, in view of the problem with the conventional seat with a side support, the purpose of the present invention is that the inclination angle of the support set at the time of traveling under the condition where the posture of the occupant is not relatively changed on the paved road. A variable range can be obtained, and when driving on rough roads at this set angle, the roll of the occupant can be detected and the support can be fixed at the set angle so that the posture of the occupant does not change relatively. Another object of the present invention is to obtain a vehicle seat that can improve the holdability for the occupant and reduce the cramping feeling to the occupant even at the inclination angle set in the state.

(Means for Solving the Problems) In order to achieve this object, the present invention provides a mechanism for setting the inclination angle of the side support and a side G setting angle of the side support set by the mechanism. The tilt angle setting mechanism includes a rotatable base of the rotatable support frame and the seat back and / or the seat cushion, which is in a state of being projected to form a skeleton of the support in the side support. A return member that is provided between the inner seat frame and the support frame to return the support frame to the initial position,
And an angle setting member for displacing the rotation end of the support frame against the habit of the return member, and the G sensor is a rotatable fork member integrated with the rotation base side of the support frame. An operating plate which is slidable on the fork member with respect to the fork member and has a plurality of teeth formed on one surface thereof and a plurality of inclined projections formed on the other surface thereof; A fixed plate, which is fixed to the seat frame side facing the operating plate and has teeth corresponding to a plurality of teeth of the operating plate, is arranged between the facing surfaces of the fixed plate and the operating plate, and A compression spring that separates these two surfaces from each other, a plurality of holes that are engageable with the plurality of inclined projections on a surface of the actuation plate that faces the other surface, and a plurality of claws are formed on a part of the rotation. Possible locking board and this locking And a weight for displacing the free end of the locking claw by detecting a lateral G positioned on the free end side of the locking claw. It is proposed to configure with.

(Operation) According to the present invention, in a state in which the inclination angle of the side support is set, the support itself can be rotated to some extent by the rotation permitting portion provided in the setting member, while at the same time, the occupant is more than a predetermined amount. When the lateral G occurs, the rotation of the support itself is blocked.

Embodiment An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 4.

FIG. 1 is a perspective view showing a case where a mechanism for setting an inclination angle of a side support in a seat according to an embodiment of the present invention is provided on a seat back side.

The feature of this embodiment resides in that a G sensor is combined with a side support inclination angle setting mechanism.

That is, the tilt angle setting mechanism 10 includes a setting control unit 10A provided in the seat frame 11 arranged in the seat back, and the setting control mechanism 10A includes the return habit member 10A1 of the side support 12 and the angle setting function. It is composed of a plate 10A2.

The setting control unit 10A described above is a structure for inclining the side support 12 at an angle that can restrain the body side of the occupant.
The reset habitual portion 10A1 is configured by a return spring 10A1 that is bent between the seat frame 11 and one end in the longitudinal direction of the support frame 12A that is bent into a rectangular shape in the figure to form the skeleton of the side support 12. And this return spring 10A1 is
The 12A is given a habit of turning in a normal or clockwise direction.

Further, the angle setting plate 10A2 is composed of a flat plate having a long groove 10A20 that engages with the horizontal shaft portion of the support frame 12A, and the shaft end portion of the operating shaft 10A21 is retained at one end in the longitudinal direction thereof. An operation knob 10A22 located outside the seat back is fixedly provided at the shaft end opposite to the end.

The long groove 10A20 in the angle setting plate 10A2 is set to a length that allows the rotation of the support frame 11, and by the biasing of the return spring 10A1, the groove end opposite to the side on which the support frame 11 is pressed and the outer periphery of the support frame 11. A gap α is formed between them.

Therefore, the side support 12 moves in response to the rotation of the operation knob 10A22, and the angle setting plate 10A2 moves, according to the moving direction and the moving amount thereof, with the base end side on which the return spring 10A1 is hooked as the starting point. The angle can be changed against the spring 10A1 or according to its habit.

On the other hand, the G sensor 10B is a plurality of turntables located on the opposite side of the return spring 10A1 at the base of the side support 12 and fitted along the longitudinal direction of the fork member 10B1 integrated with the rotary base of the support frame 12A. It is configured.

That is, the G sensor 10B has a fork member 10B fixed to the bent end of the support frame 12A, as shown in the second illustration.
1 has a screw hole 10B10 formed in the base surface of the fork portion of the fork member 10B1, and a spindle 10B11 having both notched surfaces is attached to the screw hole 10B10.

Further, in the fork portion of the fork member 10B1 described above, an operation board 10B2 having a hole to be fitted into the fork portion is arranged slidably with respect to the fork portion.

This operation board 10B2 is formed with a plurality of teeth 10B20 on the same circumference on one surface along the longitudinal direction of the bent end of the support frame 12A, and on the back surface of this surface, on the same circumference,
A plurality of inclined protrusions 10B21 are formed. This inclined protrusion 1
0B21 is a direction in which the direction of the inclined surface, in other words, the rising direction, can be detached from the hole formed in the locking board 10B4 described later when the side support 12 is rotated and returned by the behavior of the return spring 10A1. It is said that.

A fixed plate 10B3 having a tooth 10B30 capable of meshing with the tooth 10B20 is located on the side of the operating plate 10B2 facing the tooth 10B20.
As shown, the support plate 13 fixed to the seat frame 11
It is mounted on top and is immobile.

The compression spring 14 fitted to the support shaft 10B11 is positioned between the surface of the operating plate 10B2 on which the teeth 10B20 are formed and the surface of the stationary plate 10B3 on which the teeth 10B30 are formed. The teeth 10B20 of the board 10B2 and the teeth 10B30 of the stationary board 10B3 are flat and separated.

On the other hand, the locking plate 10B4 fitted to the support shaft 10B11 is located on the side of the operating plate 10B2 facing the inclined projection 10B21, and the inclined plate 10B2 of the operating plate 10B2 in this locking plate 10B4 is located.
On the surface facing 1 is a hole 10B4 that can be engaged with this protrusion 10B21.
0 is formed, and a plurality of claws 10B41 are formed in the vicinity of the peripheral edge of the locking board 10B4 along the edge thereof. The locking claw 10B5 shown in FIG. 1 has its free end opposed to the claw 10B41, and the locking claw 10B5 has a base end supporting plate.
It is pivotally supported and swingably supported in a support box attached to a part of 13. The locking claw 10B5 is adapted to receive the action of the weight 10B6 located on the lower surface of the free end thereof, and the weight 10B6 performs a pendulum motion by following the rolling motion of the vehicle body by a structure (not shown). The free end of the locking claw 10B5 is displaced.

Since the present embodiment has the above-described structure, when setting the angle of the side support 12, the operation knob 10A22 in the angle setting mechanism 10A is rotated to set the desired angle.

The side support 12 whose angle is set by the operation knob 10A22 as described above abuts on one end of the long groove 10A20 of the angle setting plate 10A2 by the action of the return spring 10A1, but between the outer periphery and the other end of the long groove 10A20. Due to the existence of the clearance α, the rotation within the clearance is allowed. Therefore, although the occupant once sets the angle of the side support, the occupant has a slight margin in the feeling of restraint.

This state is useful for eliminating the feeling of tightness when traveling on a paved road or the like.

Then, in the G sensor 10B in this state, as shown in FIG.
Since the pendulum motion of the weight 10B6 does not occur, the operation plate 10B2 is configured such that the inclined projection 10B21 is provided in the hole 1B of the locking plate 10B4 with the tooth 10B20 separated from the tooth 10B30 of the fixed plate 10B3 by the action of the compression spring 14.
By engaging with 0B40 and following the rotation of the support frame 12A, rotation is allowed together with the locking board 10B4.

On the other hand, when traveling on a rough road such as an unpaved road with the angle set as described above, when the vehicle body rolls due to vibration applied to the vehicle body, the weight 10B6 of the G sensor 10B is reduced. When the pendulum moves, the weight 10B6 locks the claw
The free end of 10B5 engages with the claw 10B41 of the locking plate 10B4.

Therefore, when the locking plate 10B4 is prevented from rotating, the inclined projection 10B21 of the operating plate 10B2 fitted in the hole 10B40 of the locking plate 10B4 comes out of the hole 10B41 as shown in FIG.
The teeth 10B20 of the working plate 10B2 and the teeth 10B30 of the fixed plate 10B3 are engaged with each other, the rotation of the working plate 10B2 is blocked, and the fork member 10B1 on the support frame 12 side, which is in an integral relationship therewith, cannot be rotated. , The side support 12 cannot be rotated within the set angle.

(Effect of the Invention) As described above, according to the present invention, the angle setting mechanism can be obtained when traveling on a good road such as a paved road even after the angle setting of the side supports that can change the inclination angle of each other. Since the rotation of the side support can be allowed within the variable angle range, it is possible to prevent the occupant from feeling cramped.On the other hand, when driving on a rough road, the vehicle side rolls with respect to the set side support angle. Since it can be held at that angle at that time, the occupant can be reliably held, and a seat with good holding and habitability can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part structure of a seat according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the main part shown in FIG. 1, and FIGS. 3 and 4 are shown in FIG. FIG. 5 is a perspective view showing a structure of a side support portion in a conventional seat, and FIG. 10 …… Inclination angle setting mechanism, 10A …… Setting control unit, 10B ……
G sensor, 10A1 ... Return spring, 10A2 which is a return member
...... Angle setting plate, which is an angle setting member, 10A20 ...... Long groove on the angle setting plate, 10A21 ...... Operation axis on the angle setting plate, 10A22 ...... Operation knob on the angle setting plate, 10B1 ......
Fork member, 10B2 operating plate, 10B20 ... Tooth, 10B21 ... Inclined protrusion, 10B3 ... Fixing plate, 10B30 ... Tooth, 10B4 ... Locking plate, 10B40 ... Hole, 10B41 claw, 10B5 ... Locking claw , 10B6 ……
Weight, 11 …… Seat frame, 12 …… Side support, 12
A: Support frame, 14: Compression spring.

Claims (1)

[Scope of utility model registration request] 1. A vehicle seat in which side supports, which are located at both ends of a seat back and / or a seat cushion and are used to hold a side part of a body of an occupant, are configured so that their inclination angles can be changed. A mechanism for setting the inclination angle of the side support, and a G sensor for fixing the setting angle of the side support set by the mechanism by sensing the lateral G, the inclination angle setting mechanism, in the side support, The support frame is provided between the rotation base of the rotatable support frame and the seat frame in the seat back and / or the seat cushion, which is projected to form the skeleton of the support. The return member to be returned and the rotating end of the support frame against the habit of this return member. The G sensor includes a rotatable fork member that is integrated on the side of the rotation base of the support frame, and the fork member is slidable on the fork member. A plurality of teeth are formed on one surface and a plurality of inclined projections are formed on the other surface, and an operating board fixed to the seat frame side opposite to the operating board. A fixed plate on which teeth corresponding to a plurality of teeth are formed, a compression spring which is arranged between the facing faces of the fixed plate and the working plate, and which separates both sides of the plain plate from each other, and the other face of the working plate that faces the other side. And a rotatable locking plate having a plurality of holes engageable with the plurality of inclined projections and partially formed with a plurality of claws, and a plurality of claws on the locking plate. The swingable locking claw and this locking claw Lateral G is located in the Yoshitan side
A seat for an automobile, comprising: a weight for displacing the free end of the locking claw toward a plurality of claws in the locking board by sensing.