JPH06144094A - Eat device in automobile - Google Patents

Abstract

PURPOSE:To support the elbow part of an occupant in a proper state at all times by enabling an armrest to rock its rear end in the vertical direction and interlocking a reclining motion in a seat back with a vertical rocking motion of the armrest. CONSTITUTION:In an automatic being composed of providing a seat 1 made up of enabling a seat back 1b to do its reclining motion, and of supporting an armrest 13 on an inner surface side of a door 12 to be situated at the sidepiece of the seat 1 so as to make the rear end rockable in the vertical direction, an interlocking mechanism (for example, an engaging projection 18 and a recess groove 17 to be engaged with each other) rocking the rear end of the armrest 13 in the vertical direction in linkage with the reclining motion of the seat back 1b is made so as to be installed in space between the armrest 13 and the seat back 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat device, and more particularly to a structure for interlocking a vehicle seat and an armrest.

[0002]

2. Description of the Related Art An armrest for supporting an occupant's elbow is provided on the inner surface of a vehicle door. In a so-called captain seat, Japanese Patent Laid-Open No. 63-3804
As disclosed in Japanese Unexamined Patent Application Publication No. 6-67, there are some armrests that are vertically movable, but the armrests provided on the inner surface of the door are generally fixedly provided.

On the other hand, in the seats of automobiles, seat backs that perform reclining operation (that is, variable tilt angle operation) are often used.

[0004]

As described above, when the seat back reclines, the position of the occupant's elbow changes up and down. Therefore, the armrest fixedly provided on the inner surface of the door does not move the occupant's elbow. In some cases, it may not be possible to support in an appropriate state.

The present invention has been made in view of the above points, and the rear end portion of the armrest is capable of swinging in the vertical direction, and the reclining operation of the seat back and the vertical swinging of the armrest are interlocked with each other. The purpose is to always support the occupant's elbow in an appropriate state.

[0006]

According to a first aspect of the present invention, as means for solving the above-mentioned problems, a seat having a seat back capable of reclining is provided, and an inner surface of a door located on a side of the seat. In a vehicle in which an armrest is supported on its side so that its rear end can swing vertically, a rear end of the armrest is provided between the armrest and the seatback in association with a reclining operation of the seatback. An interlocking mechanism for swinging up and down is provided.

According to a second aspect of the present invention, as means for solving the above-mentioned problems, in the vehicle seat apparatus according to the first aspect, the interlocking mechanism is an engaging projection provided on the seat back or the armrest. , The concave portion provided in the armrest or the seat back so as to be engaged with the engaging protrusion.

According to a third aspect of the present invention, as means for solving the above-mentioned problems, in the vehicle seat device according to the second aspect, the engaging protrusion is configured to be retractable with respect to a seat back or an armrest. I have to.

According to a fourth aspect of the present invention, as means for solving the above-mentioned problems, in the vehicle seat apparatus according to the second or third aspect, a positioning means for returning the armrest to a horizontal posture when the door is opened. And a drive control means for moving the seat back to a position where the engaging projection and the concave groove can mutually engage when the door is opened.

According to a fifth aspect of the present invention, as means for solving the above-mentioned problems, in the vehicle seat device according to the fourth aspect, the seat is not for a rear seat and the seat cushion is moved back and forth. The reclining operation is performed, and the drive control means is configured to move the seat cushion to the rearmost position.

According to a sixth aspect of the present invention, as means for solving the above-mentioned problems, in the vehicle seat device according to the fifth aspect, a prohibition means for prohibiting the movement of the sea cushion when the door is in the open state. Is attached.

[0012]

According to the first aspect of the invention, the following actions can be obtained by the above means.

That is, during the reclining operation of the seat back, the position of the occupant's elbow changes (for example, lowers or rises), but the rear end of the armrest moves in the vertical direction in conjunction with the reclining operation of the seat back. Therefore, the positional relationship between the armrest and the occupant's elbow is always maintained in a good condition.

According to the second aspect of the invention, the following effects can be obtained by the above means.

That is, during the reclining operation of the seat back, the armrest and the seat back are interlocked with each other by the engagement of the engaging projection and the concave groove.

According to the invention of claim 3, the following effects can be obtained by the above means.

That is, when the door is closed from the open state, even if the engagement projection and the recessed groove are in a position in which they cannot engage with each other, the engagement projection is retracted to close the door. It will not be obstructed, and if the engaging projection and the groove are aligned, the engaged state will be automatically obtained.

According to the invention of claim 4, the following effects can be obtained by the above means.

That is, when the door is opened, the armrest is returned to the horizontal posture, while the seatback is moved to a position where the engaging projection and the groove can be engaged with each other. The next door closing operation can be performed smoothly.

According to the invention of claim 5, the following effects can be obtained by the above means.

That is, when the door is opened, the armrest is returned to the horizontal posture, while the seat cushion is moved to the rearmost position, which is the position where the engagement projection and the groove are in the engageable position. Since,
The next door closing operation can be performed smoothly.

According to the invention of claim 6, the following actions can be obtained by the above means.

That is, when the door is in the open state, the armrest is returned to the horizontal posture, while the seat cushion is moved to the rearmost position where the engaging projection and the groove are in the engageable positional relationship. Since the locked state is maintained by the action of the prohibiting means, the next door closing operation can be smoothly performed.

[0024]

According to the first aspect of the present invention, the seat back is provided with a seat capable of reclining operation, and the rear end of the armrest is arranged vertically on the inner surface of the door located on the side of the seat. In an automobile supported so as to be able to swing, an interlocking mechanism that swings a rear end portion of the armrest in a vertical direction is provided between the armrest and the seatback in association with a reclining operation of the seatback. The rear end of the armrest can be swung in the vertical direction in response to a change in the position of the occupant's elbow during reclining of the seat back (e.g., lowering or raising). Since the positional relationship with the elbow is always maintained well, there is an excellent effect that the elbow can be supported to fit the posture of the occupant.

According to the invention of claim 2, in the automobile seat device according to claim 1, the interlocking mechanism is an engagement projection provided on the seat back or the armrest, and the armrest for engaging with the engagement projection. Alternatively, since it is configured by the recessed groove provided in the seat back, the armrest and the seat back are interlocked by the engagement protrusion and the recessed groove during the reclining operation of the seat back. The extremely simple structure of the groove and the groove has an excellent effect of ensuring the interlocking operation of the seat back and the armrest.

According to the third aspect of the invention, in the automobile seat apparatus according to the second aspect, the engaging projection is adapted to be retractable from the seat back or the armrest, so that the door is closed from the open state. In this case, even if the engagement projection and the recessed groove are in a position in which they cannot engage with each other, the closing operation of the door is not hindered by the depression of the engagement projection, and the engagement projection is prevented. If the seat and the groove are aligned, the engaged state is automatically obtained, and it is possible to achieve the interlocking of the seat back and the armrest and the smoothness of the door opening / closing operation with an extremely simple structure. effective.

According to the fourth aspect of the invention, in the vehicle seat apparatus according to the second or third aspect, the positioning means for returning the armrest to the horizontal posture when the door is opened is engaged with the positioning means when the door is opened. By providing a drive control means for moving the seat back to a position where the projection and the concave groove can mutually engage with each other, the armrest is returned to the horizontal posture when the door is opened, while the seat back is engaged with the concave projection. Since it can be moved to a position where it can be engaged with the groove, the next door closing operation can be performed smoothly, and the interlocking of the seat back and armrest and the door opening / closing operation can be performed with an extremely simple structure. There is an excellent effect that smoothing can be achieved.

According to the fifth aspect of the present invention, in the vehicle seat apparatus according to the fourth aspect, the seat is not for the rear seat and the reclining operation is performed by following the forward and backward movement of the seat cushion, and the drive control means. Is to move the seat cushion to the rearmost position, and when the door is opened, the armrest is returned to the horizontal position, while the seat cushion is in a position where the engaging projection and the concave groove can engage with each other. Since it can be moved to the rearmost end position, the next door closing operation can be smoothly performed, and it is possible to facilitate the interlocking of the seat back and the armrest and the door opening / closing operation with an extremely simple structure. It has an excellent effect.

According to the sixth aspect of the invention, in the vehicle seat apparatus according to the fifth aspect, when the door is in the open state, a prohibiting means for inhibiting the movement of the sea cushion is additionally provided to open the door. At a certain time, the armrest is returned to the horizontal position, while the seat cushion is maintained at the rearmost position where the engagement projection and the groove are in the engageable position. Therefore, there is an excellent effect that the seat back and the armrest can be interlocked with each other and the door opening / closing operation can be smoothly performed with an extremely simple structure.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the seat device for an automobile according to the present embodiment has a rear seat 1 including a seat cushion 1a and a seat back 1b connected to a rear end portion of the seat cushion 1a. The rear seat 1 is a power seat capable of performing a reclining operation in which the seat back 1b tilts backward by moving the seat cushion 1a forward by the drive device 2.

As shown in FIG. 4, the drive device 2 includes a guide rail 5 fixed to a vehicle body floor 3 via support legs 4 and extending in the vehicle front-rear direction, and slidably engaged with the guide rail 5. A gearbox that includes a movable rail 6 that is stopped and fixed to the lower surface of the seat cushion 1a, a ball screw 7 that is attached to the movable rail 6 and that extends in the vehicle front-rear direction, and a gear (not shown) that meshes with the ball screw 7 8 and a motor 9 fixed to the vehicle body floor 3 side to drive the gears to rotate. The reversible rotation of the motor 9 causes the ball screw 7 and the movable rail 6 to move back and forth, and the seat cushion 1a accordingly. Is to be moved back and forth (that is, the seatback 1b is made to recline).
Reference numeral 10 is a bracket for attaching the ball screw 7 to the movable rail 6, and 11 is a motor 9 and a gear box 8.
Is a bracket for fixing the to the vehicle body floor 3.

On the other hand, an armrest 13 for supporting the occupant's elbow is provided on the inner surface of the door 12 located on the side of the rear seat 1.

The armrest 13 is rotatably supported at its front end through a pivot 14, and the spring 1
5 is positioned so as to maintain a horizontal posture in a normal body. That is, in the case of the present embodiment, the armrest 13 is pivotally supported so that its rear end can swing vertically. In addition, the armrest 13 has
A regulating means (not shown) for regulating the upper limit of the rear end is attached so that the horizontal posture is maintained. That is,
In the case of this embodiment, the spring 15 and the regulating means constitute a positioning means for returning the armrest 13 to the horizontal posture. Code 16
Is a spring bridge.

A recessed groove 17 is formed at the rear end of the armrest 13 and is long in the vehicle front-rear direction.

On the other hand, on the side surface of the seat back 1b on the door side, the armrest 13 is in a horizontal posture and the seat cushion 1a is at the rearmost position (in other words, the seat back 1b is at an angle that is the most upright). The door 1
An engaging projection 18 that engages with the concave groove 17 when the second closing operation is performed is provided so as to be retractable. That is, in the case of the present embodiment, the engaging projection 18 and the concave groove 17 constitute an interlocking mechanism that interlocks the reclining operation of the seat back 1b and the vertical swing of the armrest 13. .

As shown in FIG. 5, the engaging projection 18 is disposed in a storage portion 19 formed on the side surface of the seat cushion 1b in a state of being urged in a protruding direction by a spring 20.

In the drawings, reference numeral 21 is an assist grip, 2
2 is an inner handle, 23 is an outer handle, 24 is a seat slide switch for controlling the start / stop of the drive device 2,
Reference numeral 5 is a door switch for detecting opening / closing of the door 12.

Therefore, in the vehicle seat device of this embodiment, the controller 2 serving as drive control means for controlling the drive of the drive device 2 and the opening / closing of the door 12 in association with each other.
6 is attached.

As shown in FIG. 6, the controller 26 controls the drive unit 2 based on signal inputs from the door switch 25 and the seat slide switch 24. When the door 12 is opened, the controller 26 controls the drive unit 2. The seat back 1a is moved to a position where the engagement protrusion 18 and the recessed groove 17 can be engaged with each other (in other words, the seat cushion 1
drive control means for moving b to the rearmost position) and the door 12
And a prohibiting means for prohibiting the movement of the sea cushion 1a from the rearmost position in the open state.

The operation of the vehicle seat device configured as described above will be described with reference to the flow chart shown in FIG.

When it is detected in step S ₁ that the door 12 is in the closed state by the OFF operation of the door switch 25, the seat slide switch 24 is turned ON in step S ₂ , and the drive device 2 is driven. by the seat cushion 1a moves in the longitudinal direction (step S _3), as a result the seat back 1b is made to tilt by a predetermined angle (i.e., the reclining operation). During the reclining operation of the seat back 1b, the position of the occupant's elbow changes (for example, lowers or rises), but due to the engagement between the engagement protrusion 18 of the seat back 1b and the groove 17 of the armrest 13. Since the rear end of the armrest 13 is vertically swung in conjunction with the reclining operation, the positional relationship between the armrest and the occupant's elbow is always maintained in a good condition (see the chain line in FIG. 1). .

When the opening operation of the door 12 is detected by the ON operation of the door switch 25 in step S ₁ , the control by the controller 26 is performed in step S 1.
Proceeding to step ₄ , the drive device 2 is driven by the action of the drive control means to move the seat cushion 1a to the rearmost position. At this time, since the armrest 13 is in the free state, it is returned to the horizontal posture by the urging force of the spring 15. Thereafter, the control by the controller 26 proceeds to step S _5, while the door 12 is in an open state movement of the seat cushion 1a is inhibited. That is, when the door 12 is in the open state, the seat cushion 1a is always located at the rearmost position. Therefore, even if the door 12 is closed next time, the engaging protrusion 18 and the groove 17 are closed.
And will be automatically engaged.

Even if the seat cushion 1a cannot be moved to the rearmost position for some reason, the engaging projection 18 can be retracted from the seat back 1b in the present embodiment. The engagement projection 18
The disengaged state between the groove 17 and the groove 17 does not hinder the closing operation of the door 12. In that case, if the rearward movement of the seat cushion 1a is performed again after the door 12 is closed, the engagement between the engagement protrusion 18 and the concave groove 17 can be easily obtained.

In the above embodiment, the engaging projection is provided on the seat back and the concave groove is provided on the armrest. However, conversely, the engaging projection is provided on the armrest and the concave groove is provided on the seatback. May be.

In the above description, the invention of the present application is applied to the rear seat, but the invention of the present application is also applicable to the front seat.

The invention of the present application is not limited to the configuration of the above-described embodiment, and it goes without saying that the design can be appropriately changed without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a vehicle seat device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a seat device according to an embodiment of the present invention.

FIG. 3 is a side view showing a seat device for an automobile according to an embodiment of the present invention.

FIG. 4 is a perspective view of a drive device in a vehicle seat device according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of an engaging projection support portion in a vehicle seat device according to an embodiment of the present invention.

FIG. 6 is a block diagram of a control unit in a vehicle seat device according to an embodiment of the present invention.

FIG. 7 is a flowchart for explaining the operation of the vehicle seat device according to the embodiment of the present invention.

[Explanation of symbols]

1 is a seat (seat for rear seats), 1a is a seat back, 1b is a seat cushion, 2 is a drive device, 12 is a door, 13 is an armrest, 15 is a spring, 17 is a groove, 18 is an engaging protrusion, and 26 is controller.

Claims (6)

[Claims] 1. A seat back is provided with a seat in which a reclining operation is possible, and an armrest is supported on an inner surface side of a door located on a side of the seat so that a rear end portion of the door can be vertically swung. An interlocking mechanism for swinging the rear end portion of the armrest in the up-down direction is provided between the armrest and the seatback in association with the reclining operation of the seatback. Seat equipment. 2. The interlocking mechanism includes an engagement protrusion provided on the seat back or the armrest, and a groove provided on the armrest or the seatback to engage with the engagement protrusion. The vehicle seat apparatus according to claim 1, wherein the seat apparatus is an automobile. 3. The vehicle seat apparatus according to claim 2, wherein the engagement protrusion is retractable with respect to a seat back or an armrest. 4. A seat back is moved to a position where the positioning means for returning the armrest to a horizontal posture when the door is opened and the engaging projection and the recessed groove can be engaged with each other when the door is opened. The vehicle seat apparatus according to claim 2 or 3, further comprising drive control means. 5. The seat is for a rear seat and is configured to perform a reclining operation by following a forward and backward movement of a seat cushion, and the drive control means moves the seat cushion to a rearmost position. The vehicle seat device according to claim 4, wherein the seat device is a vehicle seat device. 6. The vehicle seat apparatus according to claim 5, further comprising a prohibition unit for prohibiting movement of the sea cushion when the door is in the open state.