JP3252191B2 - Table device for seat back - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table device provided on the back of a seat back that has been moved forward.

[0002]

2. Description of the Related Art Various seat back table devices are known in the art. For example, a tray-shaped storage body is provided on the back of the seat back, and a part of the storage body is provided inside or above the concave space of the storage body. Or provided with a cover member made of a resin hinge that reverses in a convex manner in one direction (Japanese Utility Model Publication No. 60-79).
No. 54), a tray is provided on the back of the seat back, and a cup receiver is provided on the upper surface so as to be slidable in the front-rear direction (Japanese Utility Model Laid-Open No. 62-56451). There is a tray provided with a cup holding member that can be stored in the inside of the tray and can be bridged between opposing peripheral walls (Japanese Utility Model Laid-Open No. 63-67348).

[0003]

In each of the above conventional examples, the tray itself must be attached to the seat back by screwing or the like. Therefore, the attaching / detaching operation is relatively troublesome, and the attaching / detaching operation cannot be performed quickly and easily. In addition, since both are made substantially parallel to the back surface of the seat back, if the seat back does not become horizontal when the seat back is moved forward, the tray will be inclined. Furthermore, if a substantially horizontal tray is provided on a seatback that is inclined when the seat is tilted forward, the rear side of the tray will be supported by floating above the seatback, causing wobble during use and unstable during use. turn into. The purpose of the present application is to solve these problems.

[0004]

According to a first aspect of the present invention, there is provided a seat back table apparatus according to the present invention, wherein a lower portion of a seat back is connected to a rear end portion of a seat portion by a hinge fitting so as to be free to fall forward. In a seatback table device with the tray part removably mounted on its back with the front facing down.
Part and the surrounding frame formed around it
It is formed in a container shape, and it covers from the back side of the seat back and
And the surrounding frame portion.
The side wall of the rear side has a substantially triangular shape with a wide width, and
A bracket projecting downward at the rear of the tray unit is provided, characterized in that fixing by engaging the brackets to the protrusions are provided to protrude to the side of the hinge bracket. This
Here, the tray and the rear of the peripheral frame are
Condition.

[0005] The second invention is the first invention, wherein the training
Part of the bottom of the seat that contacts the back of the seat back
The height of the seat back to approximately
It is characterized by being matched .

A third invention according to the first invention, the
Head that can be freely inserted and removed from the top of the seat back
Use the stay on the rest to secure the front end of the tray
It is characterized in that it is fixed to the top of the steel .

[0007]

[0008]

[0009]

According to the first aspect of the present invention, the tray portion and its periphery are provided.
Since it was formed in a substantially container shape by the surrounding frame part surrounding the surroundings, the sheet
When placed from the back side of the back, the entire periphery of the seat back
Can be fitted into the peripheral frame portion. At this time,
Since the side wall has a substantially triangular shape, the surface of the tray section is almost horizontal
The side can be overlapped with the side of the seat back
Wear. For this reason, a seat back that tilts when it is moved forward
The surface of the tray is almost horizontal when used against
Can be used appropriately. When the tray is placed on the back of the seat back and the bracket that projects downward at the rear of the tray is engaged with the projection that projects to the side of the hinge bracket, the table device can be detachably attached to the seat back. Can be easily attached and detached.

[0010] According to the second aspect of the present invention, the bottom of the tray section is closed.
The height of the part that touches the back of the seat back
Because it almost coincided with the inclination of the seat back at the time of
Even if the front side of the tray section is kept almost horizontal, the bottom
Prevents wobble, etc. as it can be supported on the back of the back
And can be stably supported and fits the seat back
Therefore, the merchantability can be improved.

[0011]

According to the third invention, after the table device.
After attaching the part side to the seat back with the bracket,
Front part of seat back with headrest stay
The front and back of the table device by fixing
One can be securely mounted .

[0012]

[0013]

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to the drawings. 1 is a view for explaining the mounting operation, FIG. 2 is a side view of the mounted state, FIG. 3 is a view showing a use state in the vehicle, FIG. 4 is a top view of the table, and FIG. FIG.

In these figures, the table device 1
Is provided with a tray portion 2 consisting of a concave portion opened upward in a substantially square shape when viewed from above, and a cylindrical concave portion 3 serving as a cup receiver is formed at the front end side in the tray portion 2, and is intermediate in the front-rear direction of the tray portion 2. A long groove-shaped concave portion 4 for accommodating small items such as sweets is formed continuously in the left-right direction at a position slightly behind the portion, and a plurality of cylindrical concave portions 5 also serving as cup receivers are further formed at the rear position. They are formed side by side in the left-right direction.

The cylindrical concave portions 3 and 5 and the long groove-shaped concave portion 4 are each opened upward, and each bottom portion is formed so as to protrude downward. And the cylindrical concave portion 5 is substantially the same, and both of them protrude more than the cylindrical concave portion 3, and the inclined line A (FIG. 2) connecting the cylindrical concave portion 3 and each bottom of the long groove-shaped concave portion 4 has a forward rising inclination. ing.

The periphery of the tray portion 2 forms a peripheral frame portion 6 extending downward, and lower end edges 8 of left and right side walls 7 are inclined along the inclined line A. A part of the side wall 7 is formed with a laterally projecting part 9 and a notch part 10 is formed at a rear end thereof (FIG. 2).

The height of the front wall 11 is the lowest, and a through hole 12 for a stay of a headrest, which will be described later, is formed in the center of the front wall.

The rear wall 13 has the highest wall height, and a bracket 14 projects obliquely downward and forward from the left and right ends of the lower end thereof, and the tip end projects below the lower end edge 8 from the notch 10. A hook groove 15 is formed at the tip of the hook groove 15 so as to be slightly inclined downward and open rearward.

The bracket 14 is formed by molding a suitable material such as a metal into a separate body, and is attached to one side in the left-right direction of the peripheral frame 6 by a suitable means such as a screw. However, the mounting position may be on either the left or right side or only the left or right side depending on the seat structure, and may be formed integrally with the rear wall 13.

In the table device 1, the tray portion 2 and the peripheral frame portion 6 are integrally formed of plastic, but it is also possible to form a metal plate by pressing a metal plate. FIG.
1 shows the table apparatus 1 in a cross section along the line 1-1 in FIG.

FIG. 3 shows an example of the arrangement of seats in the cabin using the table device 1, which is used for a separate seat provided in an intermediate row of three rows of seats. However, the present invention can be applied to any seat having a forward-type seat back.

As shown in FIGS. 1 and 2, the seat connects a seat portion 20 and a seat back 21 with a hinge 22, and the hinge 22 has a knob 23 and a side protrusion 24.

By operating the knob 23, the seat back 21 is tilted forward or reclined. When the seat back 21 is tilted forward, the rear surface 25 of the seat back 21 forms an inclination substantially coincident with the inclination line A, and the upper part of the seat part 20 is inclined. Folded.

A lock hole 27 is provided in the top 26 of the seat back 21, and a stay 29 of a headrest 28 is provided therein.
Is locked by a lock mechanism (not shown).

The size and number of the through holes 12 correspond to the lock holes 27, and the size of the table 1 is
The size of the rear frame 25 substantially coincides with the size of the rear frame 25, and the peripheral frame portion 6 covers the seat back 21 from the rear side.

When attached to the seat back 21, the bottoms of the cylindrical concave portion 3 and the long groove-shaped concave portion 4 correspond to the seat back 21.
Abuts against the rear surface 25, and the respective projecting amounts are set such that the tray portion 2 comes into contact with the rear surface 25 in a state where the tray portion 2 is maintained substantially horizontal when the seat back 21 is tilted forward.

Further, the position and the amount of protrusion of the bracket 14 are such that the side protrusion 24 and the hook groove 15 can be locked, and the side protrusion 24 protrudes from the hinge fitting 22 to the side. It is a shaft-shaped member, and its thickness is approximately the same as the groove width of the hook groove 15.

Next, the operation of this embodiment will be described. As shown by the phantom line in FIG. At this time, first, the rear wall 13 side is first put over the rear part of the seat back 21 and is pushed downward. Protrusion 24
When the tray portion 1 is moved downward slightly backward and downward, the side protrusions 24 enter the hook grooves 15.

In this state, if the front portion of the peripheral frame portion 6 is pushed downward, the front side of the table device 1 is rotated clockwise in FIG. 28 overlaps with the top 26 of the seat back 21 from which it has been removed, and the left and right side walls 7 also overlap the sides of the seat back 21 so that the entire back 25 of the seat back 21 fits into the peripheral frame 6.

At this time, the bottoms of the cylindrical concave portion 3 and the long groove-shaped concave portion 4 come into contact with the back surface 25 of the seat back 21, and this portion forms an inclination line A which is substantially equal to the inclination of the seat back 21. Table 1 remains substantially horizontal.

In the front wall 11, since the through hole 12 and the lock hole 27 coincide with each other, if the stay 29 of the headrest 28 is inserted into these holes, the stay 29 is locked in the seat back 21.

For this reason, the rear end of the tray portion 2 is fixed by the stay 29 of the headrest 28 and the front end of the tray portion 2 is fixed by the bracket 14 and the side projection 24, so that the tray portion 2 is securely attached to the seat back 21. . When removing, remove the headrest 28 by unlocking the stay 29 and then remove the table device 1 from the seat back 2 in reverse order.
1 can be easily and quickly removed.

As is apparent from FIG. 2, the bottoms of the cylindrical concave portion 3 and the long groove-shaped concave portion 4 correspond to the rear surface 2 of the seat back 21.
5 so that the bottom of the tray 2 is
, The wobble is eliminated, a sense of stability and fit are obtained, and the marketability is enhanced.

In addition, even though the back 25 of the seat back 21 is inclined, the tray portion 2 can be maintained in a substantially horizontal state, so that the use of the tray portion 2 is inconvenient even if the seat back 21 is inclined forward. In addition, there is no need to employ a special hinge mechanism for horizontally tilting the back surface 25 of the seat back 21 forward.

Further, by providing the cylindrical recesses 3 and 5 and the long groove-shaped recess 4 in the tray portion 2, a large number of small partition spaces are formed, and small items such as cups and sweets are accommodated therein. If it does, it will not dissipate or fall over due to vibrations during running, and can be stored in a stable and orderly manner.

The present invention is not limited to the above-described embodiment, but can be variously modified. For example, the portion of the bottom of the tray portion 2 that contacts the back surface 25 of the seat back 21 is formed by the cylindrical recess 3 and the long groove recess. The entire bottom surface can be brought into contact with the inclined line A in an inclined manner, not in a partial manner as in each of the bottoms of FIG.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining an attaching operation.

FIG. 2 is a side view of an attached state.

FIG. 3 is a diagram showing a use state in a vehicle.

FIG. 4 is a top view of a table.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 4;

[Explanation of symbols]

1: Table device, 2: Tray part, 3: Cylindrical concave part,
4: long groove-shaped concave portion, 5: cylindrical concave portion, 6: peripheral frame portion, 7: side wall, 11: front wall, 12: through hole, 13: rear wall, 14: bracket, 15: hook groove, 20: seat portion , 21: seat back, 22: hinge fitting, 23: knob, 24: side projection, 25: back, 27: lock hole, 28: headrest, 29: stay

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60R 7/04 A47C 7/62 B60N 3/00 B60N 3/10

Claims (3)

(57) [Claims] 1. A seatback table device attached detachably to the tray portion on the back and the seat back to the accelerated state of being accelerated rotatably connected to the rear end of the seat portion the lower by a hinge fitting, using Formed around and around the tray part when the surface is almost horizontal
Formed into a substantially container shape integrally with the
Cover from the back side of the back to cover the back and its surroundings
And the side wall of the peripheral frame portion has a width on the rear side.
And it broadens substantially triangular shape, and a bracket projecting downward at the rear of the tray unit is provided, to lock the bracket to the projection portion provided to project to the side of the hinge bracket
Fixed . Table device for seat back. 2. A seat back at a bottom of the tray.
Adjust the height of the part that contacts the back of the
The table device for a seat back according to claim 1, wherein the inclination of the seat back substantially coincides with the inclination of the seat back. 3. The seat back can be freely inserted and removed from the top of the seat back.
In front of the tray using the provided headrest stay
The table device for a seat back according to claim 1, wherein an end portion is fixed to a top portion of the seat back.