JPH07266956A - Table installation structure for seat on vehicle - Google Patents

Abstract

PURPOSE:To prevent a supporting member for a table from being exposed outside, as for the table installed on the back of a seat back of a seat for a vehicle which is formed by installing the seat back on a shaft in a tiltable manner on a seat cushion. CONSTITUTION:Supporting rods 1 and 1 for horizontally holding a table board 4 and links 2 and 2 are arranged inside the back board 3 of a seat back SB.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a table provided on the back and back of a seat (seat) for vehicles such as automobiles (for example, sightseeing buses) and trains.

[0002]

2. Description of the Related Art In a conventional table of this type, as disclosed in, for example, Japanese Patent Laid-Open No. 62-2553539, the table is supported by supporting legs exposed to the outside of the seat back. For example, as disclosed in Japanese Unexamined Patent Publication No. 56-28711, a table is rotatably attached to a backboard of a seat back, and the table is placed at a predetermined position by a string or rope supporting member provided in the seat back. There is something to support.

[0003]

In the former case, since the supporting legs are exposed to the outside before and after the use of the table, the appearance quality is impaired, and when the table is used, the legs contact the user's legs. There is fear. On the other hand, in the latter, the support members such as strings and ropes are hidden by the storage of the table when the table is stored, but the usability of the table is impaired because it protrudes above the left and right of the table when the table is used. There was a problem. Therefore, an object of the present invention is to prevent the supporting member from being exposed to the outside before and after the use of the table.

[0004]

SUMMARY OF THE INVENTION To achieve the above object, the present invention relates to a vehicle seat in which a seat back is tiltably mounted by a reclining device on a seat cushion, and the seat back on the seat cushion side is provided. A pair of left and right support rods whose lower ends are rotatably pivoted in the front-rear direction below the shaft attachment part and which are arranged upright inside the backboard of the seatback, and the upper ends of the support rods of the backboard. A pair of left and right hinge brackets fixed to the backboard so as to project outward from the through holes formed in the corresponding portions, and both ends of which are pivotally attached to the hinge pin of the hinge bracket and the upper end of the support rod, respectively. A pair of left and right links, and an arc-shaped girth centering on the hinge pin of the hinge bracket with which the stopper pin provided on the link engages. And de slot, said hinge pin is characterized in that comprising a table plate having a mounting hole to be inserted to the left and right sides.

[0005]

When the seat back is tilted rearward, the upper end of the support rod is located downward, and the link attached to the upper end pivots around the hinge pin of the hinge bracket to support the table in a horizontal position. To do.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded view of a table mounting structure for a vehicle seat according to the present invention. In the figure, (SB) is a seat which is pivotally attached to a seat cushion frame (7) of a seat cushion so as to be tiltable in the front-rear direction by a reclining device. In the back, through holes (81) of the brackets (81) (81) exposed below the left and right lower ends of the seat back (SB)
The seat back (SB) is pivotally attached to the seat cushion by inserting a pin (71) provided on the seat cushion frame (7) into the seat A (81A).

The back side of this seat back (SB) is formed in a concave shape, and the back board (3) is fixed. The foam cushion body (P) inside the backboard (3) is provided with recessed grooves (80) (80) in the left-right direction in the vertical direction.

A pair of left and right support rods (1) (1) are mounted in the above-mentioned recessed grooves (80), and the lower ends of the support rods (1) (1) are located at the rear of the seat cushion frame (7). A hinge plate (10) is pivotally attached to a mounting portion of a reclining device so as to be rotatable in the front-rear direction. Since the hinge plate (10) is pivoted forward and downward with respect to the pin (71), the support rods (1) (1) rotate in the arrow direction.

The base ends of the links (2) and (2) are pivotally attached to the upper ends of the support rods (1) and (1) by pins (11) and (11) so as to be rotatable in the front-rear direction. Stopper pin (20) facing the tip side of the inner surface of (2)
(20) is projectingly provided, and insertion holes (21) and (21) are opened at the tips of both links (2) and (2).

On the other hand, the backboard (3) has through holes (31) (31) through which the links (2) (2) project to the outside.
The hinge brackets (5) and (5) are fastened to the edge of the through hole (31) so that a part of the L-shaped hinge brackets (5) and (5) protrudes to the outside. The hinge pin (51) is provided so as to face the part of the backboard (3) protruding outward from the hinge board (5).
1) is inserted into the insertion hole (21) of the link (2),
It is inserted into the mounting hole (41) of the table board (4) described later.

In the figure, (4) is a table board, and guide plates (4A) are fastened to the left and right outer surfaces of the table board (4), and the hinge pins (51) are inserted into the guide plates (4A). The mounting hole (41) and the arc-shaped guide elongated hole (40) centered on this mounting hole (41) are opened, and the stopper pin (2) is formed in the guide elongated hole (40).
0) and (20) are slidably engaged.

Reference numerals (90) and (91) in the figure denote a magnetic body for holding the storage state of the table (4) and a plate attracted to this magnetic body.

2 and 3 show how the table board (4) is used. The table board (4) includes support rods (1) (1), links (2) (2), hinge brackets (5) (5). Is always supported horizontally by the support rods (1) (1) provided inside the backboard (3) and is not visible from the outside. Then, the table board (4) is folded and stored along the backboard (3) by pivoting upward on the hinge pin (51) of the hinge bracket (5).

In FIGS. 2 and 3, (SC) shows a seat cushion, (82) shows a seat back (SB) trim cover, and (83) shows a seat back (SB) back frame.

FIG. 4 shows a use state of the table board (4). The table board (4) is rotatably supported by a hinge bracket (5) by a hinge pin (51) and is engaged in a guide elongated hole (40). It is held horizontally by the stopper pin (20) of the mating link (2). Since the support rod (1) moves in the direction of the arrow due to the tilting of the seat back (SB), the tilting state of the seat back (SB) is changed by the link (2) whose one end is connected to the support rod (1). Regardless of how it is used, it always maintains a horizontal state in use.

FIG. 5 shows the stored state of the table board (4). When the table board (4) is lifted up, the hinge pins (51) are rotated about the center of rotation and folded along the backboard (3). Be done.

FIG. 6 is an explanatory view showing that the table board (4) is always held in a horizontal state when it is in use. Since the lower end of the support rod (1) is attached to the seat cushion frame (7). As the seat back (SB) is tilted rearward, the pivotal portion of the link (2), which is the upper end, is pulled downward, whereby the table board (4) maintains a horizontal state.

[0018]

According to the present invention, the support rod, which is a support member for the table board, is built in the seat back, and the links and hinge brackets are only partially exposed to the outside of the backboard. The appearance quality of the seat before and after the use of the board is improved, and the support member does not interfere with the use of the table board.

In addition, the support member and the link keep the table board horizontal regardless of the tilting angle of the seat back, which improves the usability.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a mounting structure according to the present invention.

FIG. 2 is a perspective view showing a usage state of the table board.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a cross-sectional view of a main part of the table board in use.

FIG. 5 is a cross-sectional view of a main part of the table board in a stored state.

FIG. 6 is an explanatory view of a mounting structure according to the present invention.

[Explanation of symbols]

 SB Seat back SC Seat cushion 1 Support rod 2 Link 3 Back board 4 Table board 5 Hinge bracket 20 Stopper pin 40 Guide long hole 41 Mounting hole 51 Hinge pin

[Procedure amendment]

[Submission date] July 27, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Correction content]

Title of vehicle table mounting structure

Claims (2)

[Claims] 1. A vehicle seat in which a seat back is pivotally mounted on a seat cushion by a reclining device so as to be tiltable, and a lower end of the seat back is pivotably pivoted at a lower end in a front-rear direction below a pivotal mounting portion of the seat back. A pair of left and right support rods that are worn and are arranged upright inside the backboard of the seat back, the backboard projecting outward from a through hole formed in a portion of the backboard corresponding to the upper end of the support rod. A pair of left and right hinge brackets fixed to the hinge bracket, a pair of left and right links pivotally attached to the hinge pin of the hinge bracket and the upper end of the support rod so that both ends are rotatable, and a stopper pin provided on the link is engaged. Left and right sides of the arc guide hole with the hinge pin of the hinge bracket as the center of rotation and the mounting hole into which the hinge pin is inserted. Table mounting structure of a vehicle seat characterized by comprising the table plate, with the surface. 2. The table mounting structure for a vehicle seat according to claim 1, wherein a concave groove for arranging the support rod is provided in a vertical direction inside the backboard of the seatback.