JPH066084U - Seat back structure for automobile seats - Google Patents

Abstract

(57) [Abstract] [Purpose] To enable a table having a horizontally oriented table board to be easily formed on an inclined back surface of a seat back. In a vehicle seat S in which a seat back S1 is foldably connected to a seat bottom S2, a storage space 1'in which a central portion is depressed with a peripheral edge portion formed on the back surface of the seat back S1. Is formed on the upper end side of the horizontal shaft 22 extending in the vehicle width direction.
A table board 2 whose upper end portion is rotatably supported by the horizontal shaft 22 is provided in the storage space 1 ′ so as to be retractable and retractable, and the table board 2 is stored in the storage space 1 ′.
Locking means (U-shaped rod 4) for maintaining the state of being pulled out from is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seat back structure for an automobile seat that allows a table to appear and disappear.

[0002]

[Prior art]

 If you travel a long distance in a car, you may write in the car, enjoy playing games such as playing cards, or have a meal. Therefore, in the case of large cars such as sightseeing buses, some have a built-in table in the car for the purpose of coffee or eating from the beginning, but in the case of ordinary small passenger cars, the inside of the car is small. It is not possible to secure space for building the table. Therefore, there was no commercial small-scale automobile that had a table in the room, except for those that were refurbished for personal taste.

[0003]

[Problems to be solved by the device]

 However, there are many requests from passengers to write, play, eat, drink, etc. while the vehicle is on board.In such a case, it was normal to use the table without a table. Writing, playing, or drinking without support for putting on is very inconvenient, and especially when eating and drinking, there are many cases where food is spilled, which causes the inconvenience of contaminating clothes and the room.

Therefore, for example, a storage space having a predetermined capacity is formed on the back surface of a seat back of an automobile seat, a folding table is stored therein, and the folded table is pulled out and set whenever necessary. Although it could be used, a tilt is usually formed on the back surface of the seat back which is laid down on the seat bottom. This inclination angle tends to increase as the seat becomes more sophisticated, and the folding structure is complicated and expensive to arrange the table board so as to always form a horizontal plane on the inclination. Therefore, in the end, such a folding table has never been provided on the back surface of the seat back.

The present invention has been made to solve the above problems, and has a simple structure, and what angle is formed by folding the seat back on the seat bottom. It is an object of the present invention to provide a seat back structure for an automobile seat that can sufficiently cope with such a situation.

[0006]

[Means for Solving the Problems]

 The seat back structure for an automobile seat according to claim 1 of the present invention is an automobile seat in which the seat back is foldably connected to a seat bottom, and a rear edge of the seat back is formed with an edge portion. A concave portion is formed as a storage space in which the central portion is depressed, and a horizontal shaft extending in the vehicle width direction is provided on the upper end side of the concave portion, and the upper end portion is rotatably supported by the horizontal shaft. A table board is provided so as to be retractable in the storage space, and a locking means for maintaining the table board pulled out from the storage space is provided.

According to a second aspect of the present invention, there is provided an automobile seat seat back structure according to the first aspect, wherein the locking means has a shaft at a base end side at a bottom portion of the storage space. The table board is rotatably provided around the table board and is supported by a tip end portion of the table board protruding from the storage space by rotating around a horizontal axis.

[0008]

[Action]

 According to the seat back structure for a vehicle seat of the above-mentioned claim 1, a recess is formed on the back surface of the seat back as a storage space in which the central part is recessed in a state where the peripheral edge is formed, and the recess of this recess is formed. A horizontal shaft extending in the vehicle width direction is provided on the upper end side, and a table board whose upper end is rotatably supported on the horizontal shaft is provided so as to be retractable in the storage space. Since the locking means for maintaining the state of being pulled out from the storage space is provided, the table board can be rotated around the horizontal axis to be stored in the seat back, and the seat back can be placed on the seat bottom. With the table board folded in, rotate the stored table board around the horizontal axis to pull it out from the seat back, and lock it with the locking means while maintaining it in a horizontal position. Lever, the table is formed on the rear surface of the seat back.

According to the seat back structure for an automobile seat of the second aspect, the locking means is provided at the base end side thereof at the bottom of the storage space so as to be rotatable about an axis, and the locking means is moved from the storage space. Since it is composed of a projecting rod that supports the above table board that rotates around a horizontal axis and projects at the tip, support the tip of this projecting rod by pressing it against the bottom surface of the pulled out table board. This allows the easily pulled out table board to maintain the pulled out horizontal position.

[0010]

【Example】

 FIG. 1 is a perspective view showing an example of a seat to which a seat back structure for an automobile seat according to the present invention is applied. As shown in this figure, the seat S to which the present invention is applied is preferably such that the seat back S1 is folded over the seat back S1 and the seat back S1 is inclined. However, specific examples include a driver's seat and a passenger's seat, but the seats are not limited to these.

As shown in FIG. 1, the seat S is composed of a seat bottom S2 as a seat and a seat back S1 as a backrest. At the bottom of the seat bottom S2, there is provided a slide rail S3 including an upper rail S4 fixed to the seat bottom S2 and a lower rail S5 fixed to the floor F. By operating the slide rail S3, the seat S is moved. Is movable in the front-back direction.

A pair of L-shaped brackets S6 are provided on both sides of the rear of the seat bottom S2, and support shafts S7 are provided on side pieces protruding above the brackets S6. The base end portion of the seat back S1 is pivotally supported by the support shaft S7, and between the position where the seat back S1 is folded over the seat bottom S2 and the position where the seat back S1 stands upright at the rear portion of the seat bottom S2 as a backrest. It is rotatable about the support shaft S7.

On the back surface of the seat back S1, there is provided a recess S8 having a depressed central portion with a slight edge left on the periphery. The recess S8 has a storage space 1 corresponding to the depressed shape. The frame body 1 in which the'is formed is fitted. The frame body 1 has a bottom plate 11 conforming to the shape of the bottom of the recess S8, a side wall 12, and an upper portion of the side wall 12. The frame 1 projects outward toward the edge of the recess S8. A step portion 14 is provided between the side wall 12 and the overhang portion 13 and extends around the inner wall surface of the storage space 1 ′ of the frame body 1.

The vehicle seat of the present invention is configured such that the table board 2 can be fitted into the storage space 1'of the frame 1 attached to the seat back S1 as described above. The size of the table board 2 is the size of the opening of the storage space 1'of the frame 1, and when the table board 2 is fitted into the storage space 1 ', the peripheral edge of the table board 2 is the storage space 1'. It is locked to the step portion 14 formed on the inner wall surface and is prevented from falling down to the bottom plate 11 of the frame body 1.

As shown in FIG. 2, a pair of brackets 23 in the vehicle width direction is provided on the upper end of the table board 2, and the bracket 23 is a side wall of the storage space 1 ′ of the frame 1. It is rotatably supported around a horizontal shaft 22 penetrating therethrough.

On both sides of the back surface of the table board 2 in the vehicle width direction, a pair of crosspieces 21 are provided in the front-rear direction, and the crosspieces 21 are provided with long holes 21a cut out in the longitudinal direction. A locking groove 21b is provided on the inner peripheral surface of the elongated hole 21a on the table board 2 side.

On the other hand, a pair of brackets 3 in the vehicle width direction are provided in a portion of the frame body 1 near the base end side of the bottom plate 11, and a U-shaped rod 4 is attached to the bracket 3. That is, a shaft 41 is formed by the central portion of the U-shaped rod 4, the shaft 41 is pivotally supported by the bracket 3, and both side arms 42 of the U-shaped rod 4 are rotatable around the shaft 41.

A locking rod 43 is attached to the tip ends of both arms 42 of the U-shaped rod 4, and the locking rod 43 is fitted into a long hole 21 a provided in the crosspiece 21 of the table board 2. The locking rod 43 moves in the elongated hole 21a according to the opening and closing of the table board 2. When it is fitted in the locking groove 21b provided in the long hole 21a, the locking rod 43 is moved at a rough position, that is, the side arm 42 of the U-shaped rod 4 is rotated around the shaft 41, and eventually, is rotated. The rotation of the table board 2 around the horizontal axis 22 is blocked, and the pulled-out table board 2 is locked at that position.

That is, the U-shaped rod 4 provided in the storage space 1 ′, the locking rod 43 provided at the tip thereof, the long hole 21 a and the locking groove provided on the back surface of the table board 2. The crosspiece 21 provided with 21b constitutes a locking means for locking the protruding posture of the table board 2 pulled out from the storage space 1 '.

A semicircular depressed portion 16 is provided in the center of the rightwardly extending portion 13 of the frame body 1. The depressed portion 16 is provided with a locking piece 15 that rotates about a vertical axis. It is being done. Further, a depression 24 corresponding to the depression 16 provided on the projecting portion 13 is provided at the center of the right edge of the table board 2. Then, while the table board 2 is housed in the frame body 1, the locking piece 15 in the recess 16 is rotated around the vertical axis, and the side piece is inserted into the recess 24 of the table board 2 to make the table. Bullboard 2 is prevented from opening.

The operation of the present invention will be described below with reference to FIGS. 2 and 3. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing a state where the table board is housed in the seat back. 3 is a sectional view of the same, showing a state in which the table board is pulled out from inside the seat back to form a table.

First, as shown in FIG. 2, in a state where the table board 2 is stored in the seat back S1 which has been tilted down, the table board 2 is rotated clockwise around the horizontal axis 22 and The peripheral portion is in a state of being stopped by the step portion 14 in the storage space 1 ′ of the frame body 1. In addition, the locking piece 15 in the recessed portion 16 provided in the overhanging portion 13 of the frame 1 is turned around the vertical axis, and the end portion of the locking piece 15 is engaged with the recessed portion 24 of the tableboard 2 in the tableboard 2 Is preventing it from opening.

The U-shaped rod 4 rotates in the counterclockwise direction about the shaft 41, and the locking rod 43 provided at the tip of the U-shaped rod 4 of the elongated hole 21 a provided in the crosspiece 21 of the table board 2. It is located to the left.

In order to pull out the table 2 from the state in which it is stored in the frame 1 of the seat back S 1 as shown in FIG. 2, first, the locking piece 15 is rotated around the vertical axis to move the table board. The lock of the stored state of 2 is released, and the right end of the table board 2 is pulled up. Then, the table board 2 rotates around the horizontal axis 22 and is pulled out from the storage space 1 ′ of the frame body 1.

Along with this, the locking rod 43 at the tip of the U-shaped rod 4 fitted in the long hole 21a of the crosspiece 21 moves to the right, so that the side arm 42 of the U-shaped rod 4 is axially moved. When the table board 2 is pulled out, the table board 2 is locked by rotating clockwise around 41 and fitting the locking rod 43 into the locking groove 21b of the predetermined crosspiece 21. The inclination angle of the table board 2 can be set by selecting one of the plurality of locking grooves 21b.

In order to store the table board 2 in the state shown in FIG. 3 in the seat back S1, the right end of the table board 2 is slightly lifted to temporarily release the lock of the lock rod 43 with respect to the lock groove 21b. Then, when the table board 2 is gently rotated clockwise about the horizontal axis 22 in this state, the U-shaped rod 4 rotates counterclockwise about the axis 41, and the table board 2 shown in FIG. It is in a state of being stored in the frame body 1 of the back S1.

As described above, in the seat back structure for a vehicle seat of the present invention, since the table board 2 is provided on the back surface of the seat back S1 so as to be rotatable around the horizontal axis 22, the folded state is obtained. Therefore, it is most suitable to be applied to the seat back S1 in which the inclination is formed. Moreover, its structure is extremely simple and operability is good, it does not get in the way at all during storage, and the table is set immediately when necessary, so it is convenient and the life of the motor is enhanced. Is useful for ,

[0028]

[Effect of device]

 As described above, in the seat back structure for an automobile seat of the present invention, a recess as a storage space is formed on the back surface of the seat back in which the central part is depressed with the peripheral edge part formed. A horizontal shaft extending in the vehicle width direction is provided on the upper end side of the table, and a table board whose upper end is rotatably supported by the horizontal shaft is provided so as to be retractable in the storage space. Since the locking means for maintaining the pulled-out state from the storage space is provided, the table board can be rotated around the horizontal axis to be stored in the seat back, and the seat back can be placed on the seat bottom. The table board stored in the folded state is rotated around a horizontal axis and pulled out from the seat back. Easily table on the back of the seat back is formed by.

Further, since the table board is stored inside the seat back during storage, it does not take up any space even in a small room of an automobile, and the table is set immediately when necessary, and the seat back The table board can be set horizontally regardless of the angle of inclination, and in combination with its simple structure, its utility value is extremely high.

As the locking means, a base end side is provided at the bottom of the storage space so as to be rotatable about an axis, and a projection that supports the table board protruding from the storage space by rotating about a horizontal axis at the tip end. With the support bar, the table board that has been pulled out easily can maintain the pulled out horizontal position by pressing and supporting the tip of this projecting support rod against the bottom surface of the pulled out table board. It is convenient.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a seat to which a seat back structure for an automobile seat according to the present invention is applied.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing a state where the table board is stored in the seat back.

3 is a cross-sectional view taken along the line AA of FIG. 1, showing a state in which the table is pulled out from inside the seat back to form a table.

[Explanation of symbols]

 1 frame 11 bottom plate 2 table board 21 crosspiece 21a long hole 21b locking groove 22 horizontal axis 3 bracket 4 U-shaped rod 42 side arm 43 locking rod S seat S1 seat back S2 seat back S3 slide rail

Claims (2)

[Scope of utility model registration request] 1. A vehicle seat in which a seat back is foldably connected to a seat bottom, and a recess as a storage space is formed on the back surface of the seat back, the central part of which is depressed with an edge portion formed around the periphery. A horizontal shaft extending in the vehicle width direction is provided on the upper end side of the recess, and a table board having an upper end rotatably supported on the horizontal shaft is provided in the storage space so as to be retractable. A seat back structure for an automobile seat, characterized in that a locking means is provided for maintaining the table board pulled out from the storage space. 2. The locking means has a base end side rotatably provided on a bottom portion of the storage space about an axis, and the table board protruding from the storage space by rotating about a horizontal axis at a tip end portion. The seat back structure for an automobile seat according to claim 1, wherein the seat back structure comprises a supporting bar.