JP2001246975A - Vehicular table mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix a table when used, and absorb an impact applied to the table by turning it accordingly in a vehicular table mechanism. SOLUTION: A shaft 2 of a circular section having a table board 1 at the upper end carries, at the lower end, a rotation restraining plate 41 slidably fitted in a pipe 3 of a square section. The rotation restraining plate 41 and the lower end of the shaft 2 have a turning mechanism A for allowing the shaft 2 to turn when receiving an impact load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table mechanism provided in a vehicle such as an automobile. More specifically, the table is stored in a storage section provided in an armrest and a console box when the table is not used. The present invention relates to a table mechanism that is pulled out upward from the vehicle, rotates in the vehicle width direction, and is disposed so as to be positioned above and forward of the seat.

[0002]

2. Description of the Related Art A table of this type is pulled out of a storage section and then turned horizontally in a vehicle width direction in front of a seat.

[0003] The table is configured to be able to rotate forward in a use state to improve the occupant's getting on and off (for example, Japanese Patent Application Laid-Open No. 3-50037).

[0004]

Accordingly, in the conventional product, the table is stored in the storage portion, and is attached to the upper end of a leg having a circular cross section, and the front and rear positions are adjusted by rotating the leg.

[0005] For this reason, when the table is used, the table moves in the front-rear direction due to the vibration of the vehicle.

Accordingly, an object of the present invention is to eliminate such disadvantages of the conventional product.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a table board is attached to an upper end of a shaft having a circular cross section, and the table board is housed in an armrest of a vehicle seat or a console box. A table in which a shaft extends above a pipe having a rectangular cross section and is in a use state, and a rotation restricting plate slidably engaged in the pipe is attached to a lower end of the shaft, and the rotation restricting plate and the shaft A rotation mechanism for rotating a shaft when an impact load is applied to the table in the traveling direction of the vehicle in front of the table.

Therefore, the table does not rotate in the front-rear direction in the use state, and can move forward only when an impact load is applied such as at the time of a vehicle collision.

The rotation mechanism has a configuration in which a non-circular insertion hole is formed in the rotation restricting plate, and a lower end portion of a shaft having a non-circular cross section is inserted through the insertion hole. The lower end of the shaft rotates by deforming the hole edge of the insertion hole of the rotation restricting plate. Therefore, the table moves forward only when an impact load is applied to the shaft.

[0010] Further, the rotation mechanism is provided with a concave / convex portion which is engaged with a joint surface between the rotation restricting plate and the lower end surface of the shaft, and is screwed to the lower end surface of the shaft. With this configuration, the rotation of the shaft and the rotation mechanism at the time of impact are simplified.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an automobile seat provided with a table board (1) comprising a table mechanism according to the present invention, and a console box (A) provided between left and right seats.
A storage section (10) is provided on the side of the passenger seat for accommodating the table board (1) when not in use.

[0012] From this storage section (10) to the table board (1)
When the table board (1) is pulled out vertically upward and rotated 90 degrees in the vehicle width direction, the table board (1) is positioned horizontally above the seat portion of the passenger seat, so that the passenger in the passenger seat is configured to be easy to use. ing.

FIG. 2 shows a use state, and a table board (1).
Is mounted on the upper end of the shaft (2) having a circular cross section so as to rotate in the vehicle width direction from an extension of the shaft (2) which is a vertical direction, and is configured to be kept horizontal by a stopper. I have.

The shaft (2) is locked at a predetermined height by a lock piece which is engaged and disengaged by the operation force of the operation lever (6).

The shaft (2) is slidably inserted into a pipe (3) having a square cross section, and the pipe (3) is fastened to a seat frame (not shown) by mounting pieces (50) and (51). The base tube (5) is slidably mounted in the vertical direction.

Accordingly, by sequentially pulling up the pipe (3) from the base pipe (5) and the shaft (2) from the pipe (3), the table board (1) is raised from the storage portion (10) as shown in FIG. To the use state.

The table board (1) is fixed without rotating in a normal use state, and when an impact load is applied in the traveling direction of the vehicle ahead in the event of a collision of the vehicle, the rotating mechanism (a). The table board (1) is configured to rotate forward in the direction of the arrow by (b) and (c) to protect the passenger in the passenger seat.

FIGS. 3 to 6 show a first embodiment of the present invention, which has an outer shape substantially the same as the inner diameter of the pipe (3), and is provided on the inner surface (30) of the pipe (3). The rotation regulating plate (40) sliding along the lower end surface (2) of the shaft (2)
0 ') to restrict the rotation of the shaft (2) and prevent the rotation of the table (1) when the table (1) is used.

When an impact load is applied to the table board (1) toward the front, the table board (1) is configured to be rotated by the rotating mechanism (a). The rotation mechanism (a) includes a mountain-shaped projection (21) provided on the lower end surface (20 ') of the shaft (2) mutually engaging with the rotation regulating plate (40) as shown in FIG. , This convex part (2
1) and a recess (40A) provided in the rotation regulating plate (40) to be fitted. Therefore, the shaft (2) and the rotation restricting plate (40) are integrated, and as described above, while restricting the rotation of the shaft (2),
When an impact load is applied, the protrusion (21) escapes from the recess (40A), and the shaft (2) rotates.

The rotation restricting plate (40) is formed on the shaft (2) by the elasticity of an elastic material (42) such as a leaf spring.
Resiliently contacts the lower end surface (20 ') of the concave portion (40A) with the convex portion (21).

The rotation restricting plate (40) and the elastic member (42) are fixed to the lower end surface (20 ') of the shaft (2) by fastening members (43A) such as screws and screws via washers (43B) and (43C). Mounted on In the figure, (40B) and (42A) are insertion holes of the fastening material (43A),
(22) shows the fastening holes respectively.

In the normal use state of the table (1), as shown in FIG. 4, the projection (21) provided on the lower end surface of the shaft (2) is formed by the recess of the rotation regulating plate (40). (40A), the shaft (2) does not rotate. Therefore, the table board (1) is fixed, and does not move in the front-rear direction due to vibration of the automobile or the like.

When an impact load such as an automobile collision is applied to the table board (1) by an occupant in the passenger seat, the forward load acts on the shaft (2) via the table board (1). Therefore, as shown in FIG. 5, the convex portion (21) of the shaft (2) is replaced with the concave portion (40) of the rotation restricting plate (40).
A) To escape from the inside, the shaft (2) rotates, and the table board (1) moves in the direction of the arrow in FIG.

FIGS. 7 and 8 show a second embodiment of the present invention.
The rotation mechanism (b) of this embodiment includes a rotation restricting plate (4).
A non-circular insertion hole (41A) such as a circular circle is opened in 1), and an end (20A) of the lower portion (20) of the shaft (2) inserted into the insertion hole (41A) is inserted into the insertion hole (41A). 41A) is formed in a non-circular cross section similar to that of 41A).

The rotation restricting plate (41) is slidably engaged in the pipe (3) similarly to the rotation restricting plate (40) of the first embodiment, and includes a washer (43).
Through B), it is attached by a screw (43A) or the like so as not to drop off from the shaft (2).

Thus, in the normal use state of the table (1), the shaft (2) holds the rotation regulating plate (4).
Although it is not rotated by 1), the table board (1)
When an impact load is applied as described above, the end (20A) of the shaft (2) rotates by deforming the hole edge of the insertion hole (41A). Therefore, the table board (1)
Move to protect occupants using the table board (1).

FIGS. 9 to 11 show a third embodiment of the present invention, in which the lower portion (2) of the shaft (2) is similar to the second embodiment.
0) is provided with a rotation mechanism (c) at the end (20A ').

The rotation mechanism (c) comprises a rotation restricting plate (44) and a projection (20B ') inserted into the rotation restricting plate (44). The rotation restricting plate (44) is a pipe (3). A (4
7) is provided on the collar B (45) which is joined to the lower end surface, and a circular through hole is formed in the center portion with which the projection (20B ') is engaged.

The projection (20B ') is formed integrally with the lower end (20) of the shaft (2) on the end surface of the large-diameter locking portion (20A'). And this protrusion (20B ')
Is formed in a circular cross section so as to engage with the through hole of the rotation restricting plate (44).

In the rotation restricting plate (44), the protrusion (20B ') has a screw (46) via a washer (47).
And the like.

The collar A (47) has a collar (47A)
Abuts against the upper edge of the pipe (3) so that the projection (47B) provided on the outer peripheral surface engages with the locking hole of the pipe (3) so that it does not fall off from the upper end of the pipe (3). Installed.

Further, the shaft (2) is connected to the locking portion (20).
A ′) and collar B (45), rotation regulating plate (4
4)... Are prevented from being pulled out from the pipe (3).

In this embodiment, similarly to the second embodiment, the rotation of the shaft (2) is prevented by the rotation restricting plate (44), and the protrusion is formed only when an impact load is applied to the table (1). (20B ') is configured so that the table board (1) can be moved by deforming the edge of the through hole of the rotation regulating plate (44).

[0034]

According to the present invention, since the table is fixed when the table is used, the usability of the table is good.
And since it rotates at the time of an impact, it can become an impact absorption mechanism which absorbs a part of the impact load applied to the occupant.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an automobile seat provided with a table mechanism according to the present invention.

FIG. 2 is a perspective view of a table mechanism according to the present invention.

FIG. 3 is an exploded view of a main part of the first embodiment.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 shows a state where an impact load is applied in the state of FIG. 4;

FIG. 6 is a partially exploded perspective view of the first embodiment of the present invention.

FIG. 7 is a perspective view of a main part of the second embodiment.

8 is a sectional view taken along line VIII-VIII in FIG. 7;

FIG. 9 is a sectional view of a third embodiment of the present invention.

FIG. 10 is an enlarged view of a portion A in FIG. 9;

FIG. 11 is a sectional view taken along the line XI-XI in FIG. 1;

[Explanation of symbols]

 B. Rotation mechanism B. Rotation mechanism C. Rotation mechanism 1 Table board 2 Shaft 3 Pipe 20 Lower part of shaft 21 Protrusion of shaft 40 Rotation restriction plate 41 Rotation restriction plate 44 Rotation restriction plate 40A Depression of rotation restriction plate 41A Non-circular insertion hole

Claims (3)

[Claims] 1. A table in which a table board is attached to an upper end of a shaft having a circular cross-section and which is housed in an armrest or a console box of a vehicle seat and the shaft extends upward from a pipe having a rectangular cross-section when in use. A rotation restricting plate slidably engaged with the inside of the pipe is attached to the lower end of the shaft, and the impact load is applied to the table in front of the rotation restricting plate and the lower end of the shaft. A table mechanism for a vehicle, comprising a rotation mechanism for rotating a shaft when applied in a traveling direction. 2. The vehicle according to claim 1, wherein the rotation mechanism has a non-circular insertion hole formed in the rotation restricting plate, and a lower end of a shaft having a non-circular cross section is inserted into the insertion hole. Table mechanism. 3. The rotation mechanism is provided with a concave / convex portion which engages with a joint surface between the rotation restricting plate and a lower end surface of the shaft, and screws the rotation restricting plate to a lower end surface of the shaft. The vehicle table mechanism according to claim 1, wherein