JP7314729B2 - Vehicle seat table device - Google Patents

Description

The present invention relates to a vehicle seat table device. More specifically, the present invention relates to a vehicle seat table device having a table that can be stored in a fixed armrest that rises from the side of the vehicle seat.

A structure in which a retractable table is provided in a vehicle seat is known (Patent Document 1). The table is housed in a fixed armrest that rises from the side of the vehicle seat, and is pulled up from the housed position and laid out in front of the occupant to be laid out in a horizontal position.

JP 2016-543 A

Since the length of the table is limited by the storage space of the fixed armrests, the table may not be able to be pulled out to the desired position. SUMMARY OF THE INVENTION Accordingly, the present invention provides a vehicle seat table device that can be pulled out to a large extent without extending the table.

In order to solve the above problems, the vehicle seat table device of the present invention employs the following means.

That is, the vehicle seat table device of the present invention is a vehicle seat table device that includes a table that can be stored in a fixed armrest that rises from the side of a vehicle seat. This seat table device for a vehicle has a lifting mechanism capable of lifting the table upward from a stored state in an armrest, and a folding mechanism capable of horizontally folding the table toward the center side in the seat width direction from the state of the table pulled up by the lifting mechanism.

The folding mechanism consists of a first link and a second link connected between the table and the lifting mechanism. The first link is connected to the table and the lifting mechanism so as to be rotatable about an axis extending in the longitudinal direction of the seat. The second link is connected to the lifting mechanism so as to be rotatable about an axis extending in the longitudinal direction of the seat, and is connected to the table so as to be slidable only in the radial direction of rotation along the in-plane direction of the table.

According to the above configuration, the table is laid out so that the table is pulled far away from the second link. Therefore, the table can be unfolded in a state of being largely drawn out from the side portion of the vehicle seat without extending the table.

Further, the vehicle seat table device of the present invention may be further configured as follows. The table is horizontally deployed at a position where the inward sliding of the second link with respect to the table in the radial direction of rotation is restricted.

According to the above configuration, the table can be held in the unfolded state by a rational configuration.

Further, the vehicle seat table device of the present invention may be further configured as follows. Armrests are provided on both sides of the vehicle seat. A table is pulled out from one armrest and laid down on a receiving part provided on the other armrest to be supported at both ends.

According to the above configuration, the table can be strongly supported by a simple configuration.

Further, the vehicle seat table device of the present invention may be further configured as follows. Of the first link and the second link, the link positioned below in the unfolded state of the table is bent upward and obliquely outward.

According to the above configuration, it is possible to make it difficult for the link located below the table in the unfolded state to interfere with the body of the seated person.

1 is a perspective view showing a schematic configuration of a vehicle seat table device according to a first embodiment; FIG. It is a perspective view showing the storage state of the table. It is a perspective view showing the pulled-up state of a table. It is a front view showing the unfolded state of the table. FIG. 10 is a perspective view showing the state of the tilting mechanism when the table is pulled up; FIG. 10 is a perspective view showing the state of the tilting mechanism in the unfolded state of the table; It is a front view showing the movement of the tilting mechanism. It is a perspective view showing a schematic structure of a vehicle seat table device according to another embodiment. It is a perspective view showing a schematic structure of a vehicle seat table device according to another embodiment. It is a perspective view showing a schematic structure of a vehicle seat table device according to another embodiment.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

<<1st Embodiment>>
(Overview of configuration of vehicle seat table device)
First, the configuration of a seat table device (vehicle seat table device) 6 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIG. In the following description, when directions such as front, rear, up, down, left, and right are indicated, they refer to the respective directions shown in the respective drawings.

As shown in FIG. 1, a seat table device 6 according to the present embodiment is applied to a seat (vehicle seat) 1 forming the right rear seat of an automobile. The seat 1 includes a seat back 2 forming a backrest portion of a seated person, a seat cushion 3 forming a seating portion, and a headrest 4 forming a headrest portion.

Further, the seat 1 includes fixed armrests 5L and 5R that rise from the left and right peripheral sides of the seat cushion 3. As shown in FIG. The left armrest 5L is provided with a seat table device 6 capable of storing the table 10 with respect to the armrest 5L. Here, the left armrest 5L corresponds to "one armrest" of the present invention. Also, the right armrest 5R corresponds to the "other armrest" of the present invention.

Specifically, the left armrest 5L is configured such that an outward-opening rotary opening/closing lid 5La is attached to the top plate portion thereof. As a result, the left armrest 5L is configured such that the table 10 can be stored inside or pulled out from the inside by opening the opening/closing lid 5La. By closing the opening/closing lid 5La, the top plate portion of the left armrest 5L can be used as an elbow rest.

The seat table device 6 has a lifting mechanism 20 for lifting the table 10 from the left armrest 5L, and a tilting mechanism 30 for tilting the lifted table 10 to the front position of the seated person. The lifting mechanism 20 is configured such that the table 10 can be manually raised and lowered between a state in which the table 10 is completely stored in the left armrest 5L (see FIG. 2) and a state in which the table 10 is completely pulled up from the left armrest 5L (see FIG. 3).

The folding mechanism 30 is configured so that the table 10 can be manually raised and lowered between a state in which the table 10 is raised upright from the left armrest 5L (see FIG. 3) and a state in which the table 10 is horizontally folded to the right from the left armrest 5L (see FIG. 4). The folding mechanism 30 folds the table 10 horizontally so that the tip of the right side of the table 10 is brought into contact with the receiving section 5Ra provided on the inner side surface of the right armrest 5R.

As a result, the table 10 is unfolded in a state of being supported at both ends in the longitudinal direction by the support on the left end side by the seat table device 6 and the support on the right end side by the receiving portion 5Ra. Specifically, the table 10 is configured to have a width shorter than the distance between the inner surfaces of the left and right armrests 5L, 5R. However, as the table 10 is horizontally tilted by the tilting mechanism 30, the table 10 is separated from the left armrest 5L to the right and is largely drawn out to reach the receiving portion 5Ra of the right armrest 5R.

The configuration of each part of the seat table device 6 will be described in detail below. As shown in FIG. 5, the lifting mechanism 20 has a fixed bracket 21 integrally fixed within the left armrest 5L, and a movable bracket 23 rotatably connected to the fixed bracket 21 by a rotary shaft 22 extending in the seat width direction. The fixed bracket 21 is provided at a front upper portion within the left armrest 5L.

The table 10 is connected to the movable bracket 23 via a tilting mechanism 30 which will be described later. The movable bracket 23 rotates about the rotary shaft 22 with respect to the fixed bracket 21 to pull up the table 10 to the front upper side and drop the table 10 to the rear lower side. A rotary damper 24 is connected to the rotating shaft 22 so that the movement of the table 10 to be pulled up or dropped is suppressed by the viscous resistance of oil.

When the movable bracket 23 is raised to a position where the table 10 is lifted straight up from the armrest 5L, the movable bracket 23 comes into contact with the fixed bracket 21 and is prevented from rotating in the same direction. When the table 10 is tilted to the unfolded state shown in FIG. 6 by the tilting mechanism 30, the movable bracket 23 is engaged with the left armrest 5L to restrict the return rotation about the rotation shaft 22.

Specifically, by tilting the table 10 to the unfolded state, a first link 31 of a tilting mechanism 30, which will be described later, enters an opening (not shown) formed in the inner side surface of the left armrest 5L. As a result, the rearward rotation of the movable bracket 23 around the rotary shaft 22 is restricted by contact between the first link 31 and the rear edge of the opening (not shown).

The folding mechanism 30 consists of a first link 31 and a second link 32 connected between the table 10 and the movable bracket 23 . The first link 31, as shown in FIGS. 5-6, consists of an elongated bar member. The first link 31 is rotatably connected to the movable bracket 23 by a rotating shaft 31A extending in the seat front-rear direction, and is rotatably connected to the table 10 by a rotating shaft 31B extending in the seat front-rear direction.

The second link 32 is made of a plate member having a front-to-rear width greater than that of the first link 31 and having high structural strength. The second link 32 is positioned forward of the first link 31 . The second link 32 is rotatably connected to the movable bracket 23 by a rotating shaft 32A extending in the longitudinal direction of the seat, and is connected to the table 10 so as to be slidable only in the longitudinal direction.

Specifically, as shown in FIG. 5, the second link 32 has a slider 32B formed at the tip of the second link 32, which is assembled to a guide rail 11 provided on the back surface of the table 10, so that the second link 32 can only slide in the longitudinal direction along the guide rail 11.

A rotating shaft 31A connecting the first link 31 to the movable bracket 23 is set at a position lower than the rotating shaft 22 of the movable bracket 23. As shown in FIG. A rotating shaft 32</b>A that connects the second link 32 to the movable bracket 23 is set at a position higher than the rotating shaft 22 of the movable bracket 23 .

The tilting mechanism 30 can be switched between a state in which the table 10 is erected from the movable bracket 23 as shown in FIG. 5 and a state in which the table 10 is horizontally tilted from the movable bracket 23 as shown in FIG.

Specifically, as shown in FIG. 5, the tilting mechanism 30 has a rotational posture in which the first link 31 and the second link 32 stand up with respect to the movable bracket 23, thereby raising the table 10 upright from the movable bracket 23. From the above state, the tilting mechanism 30 rotates the first link 31 and the second link 32 so as to tilt the table 10 rightward from the movable bracket 23, as shown in FIG.

At this time, the tilting mechanism 30 slides the slider 32B of the second link 32 inward in the rotational radial direction with respect to the table 10 as the second link 32 rotates. As a result, the table 10 is laid down horizontally in a manner of sliding away from the second link 32 to the right.

The tilting mechanism 30 tilts the table 10 horizontally at a position where the slider 32B of the second link 32 reaches the radially inner end of the guide rail 11 of the table 10 and is locked. Due to the locking, the tilting mechanism 30 is in a state of supporting the left end of the table 10 at the position where the table 10 is horizontally tilted.

As shown in FIG. 7, the folding mechanism 30 is configured such that, when the table 10 is horizontally tilted, a line L1 connecting the connecting points (rotating shafts 31A and 31B) of the first link 31 to the movable bracket 23 and the table is positioned lower than a line L2 connecting the connecting points (rotating shaft 32A and slider 32B) of the second link 32 to the movable bracket 23 and the table.

However, since the first link 31 has a bent portion 31C that bends upward and obliquely outward (to the left) at the intermediate portion in the length direction, it is less likely to interfere with the thighs of the seated person. Here, the first link 31 corresponds to the "lower link" of the present invention.

(summary)
In summary, the seat table device 6 according to this embodiment has the following configuration. Note that the reference numerals in parentheses below correspond to the respective configurations shown in the above embodiments.

That is, a vehicle seat table device (6) includes a table (10) that can be stored in a fixed armrest (5L) that rises from the side of a vehicle seat (1). This vehicle seat table device (6) has a lifting mechanism (20) capable of lifting a table (10) upward from a stored state in an armrest (5L), and a folding mechanism (30) capable of horizontally tilting the table (10) toward the center in the seat width direction from the state of being lifted by the lifting mechanism (20).

The folding mechanism (30) consists of a first link (31) and a second link (32) connected between the table (10) and the lifting mechanism (20). The first link (31) is connected to the table (10) and the lifting mechanism (20) so as to be rotatable about axes extending in the seat longitudinal direction. The second link (32) is connected to the lifting mechanism (20) so as to be rotatable around an axis extending in the longitudinal direction of the seat, and is connected to the table (10) so as to be slidable only in the rotational radial direction along the in-plane direction of the table (10).

According to the above configuration, the table (10) is laid out so that the table (10) is pulled far away from the second link (32). Therefore, without extending the table (10), the vehicle seat (1) can be unfolded in a state of being largely drawn out from the side portion thereof.

In addition, the table (10) is horizontally deployed at a position where the second link (32) is restricted from sliding inward in the radial direction of rotation with respect to the table (10). According to the above configuration, the table (10) can be held in the unfolded state by a rational configuration.

Further, armrests (5L, 5R) are provided on both sides of the vehicle seat (1). A table (10) is pulled out from one armrest (5L) and laid down on a receiving portion (5Ra) provided on the other armrest (5R) to be supported at both ends. According to the above configuration, the table (10) can be strongly supported by a simple configuration.

In addition, of the first link (31) and the second link (32), the link (31) that is positioned downward when the table (10) is deployed is bent upward and obliquely outward. According to the above configuration, it is possible to prevent the link (31) positioned below the table (10) from interfering with the body of the seated person.

<<About other embodiments>>
As described above, the embodiment of the present invention has been described using one embodiment, but the present invention can be implemented in various forms shown below in addition to the above embodiment.

1. The vehicle seat table device of the present invention may be applied to a vehicle seat other than an automobile seat, such as a railroad vehicle, an aircraft, a ship, or other vehicle seat. Further, the vehicle seat table device may be provided on either the left or right armrest of the vehicle seat.

2. The table may be configured to be cantilevered in the unfolded state. Either the first link or the second link may be the link located below the table in the unfolded state. The shape of the link that is bent upward and obliquely outward may be any shape such as a bent shape or a curved shape. Each of the first link and the second link may be configured as a pair rather than as a single unit.

3. The lifting mechanism may be configured to slide the table in and out of the armrest in the height direction.

4. As shown in FIG. 8, the sub-table 12 may be connected to the table with a hinge 12A so that the sub-table 12 can be extended into the gap formed between the table and the armrest when the table is deployed.

5. As shown in FIG. 9, a recess 5Rb for stabilizing the support state may be formed in a receiving portion for receiving the unfolded end of the table by fitting a protrusion 13 formed on the table from above. Alternatively, the table may be provided with a concave portion, and the receiving portion may be provided with a convex portion that engages with the concave portion.

Further, as shown in FIG. 10, hook-and-loop fasteners 5Rc and 14, which can be detachably connected by contacting each other between the end of the unfolded table and the receiving portion, may be provided to stabilize the support state of the table by the receiving portion. Further, although not shown in the drawings, a magnet may be provided between the unfolded end of the table and the receiving portion so that the two can be attached to each other, thereby stabilizing the state of support of the table by the receiving portion.

Although not shown, an interference member such as rubber may be provided between the unfolded end of the table and the receiving portion to elastically support or prevent the table from slipping on the receiving portion.

1 seat (vehicle seat)
2 seat back 3 seat cushion 4 headrest 5L armrest (one armrest)
5La open/close lid 5R armrest (the other armrest)
5Ra receiving portion 5Rb recess 5Rc hook-and-loop fastener 6 seat table device (seat table device for vehicle)
REFERENCE SIGNS LIST 10 table 11 guide rail 12 sub-table 12A hinge 13 projection 14 hook-and-loop fastener 20 lifting mechanism 21 fixed bracket 22 rotating shaft 23 movable bracket 24 damper 30 tilting mechanism 31 first link (link located below)
31A Rotating shaft 31B Rotating shaft 31C Bent portion 32 Second link 32A Rotating shaft 32B Slider L1, L2 Line

Claims (4)

A vehicle seat table device comprising a table that can be stored in a fixed armrest that rises from the side of a vehicle seat,
a lifting mechanism capable of lifting the table upward from the stored state in the armrest;
a tilting mechanism capable of horizontally tilting the table toward the center in the seat width direction from a state in which the table is lifted by the lifting mechanism;
the folding mechanism is composed of a first link and a second link connected between the table and the lifting mechanism;
A seat table device for a vehicle, wherein the first link is connected to the table and the lifting mechanism so as to be rotatable about separate axes extending in the longitudinal direction of the seat and extends in the rotational radial direction between them , the second link is connected to the lifting mechanism so as to be rotatable about the axis extending in the longitudinal direction of the seat, and is connected to the table so as to be slidable only in the radial direction of rotation along the in-plane direction of the table. A vehicle seat table device according to claim 1,
A seat table device for a vehicle, wherein the table is horizontally deployed at a position where the second link is restricted from sliding inward in the radial direction of rotation with respect to the table. A vehicle seat table device according to claim 1 or claim 2,
The armrests are provided on both sides of the vehicle seat,
A vehicle seat table device in which the table is pulled out from one of the armrests and laid down on a receiving portion provided on the other armrest to be supported at both ends. A vehicle seat table device according to any one of claims 1 to 3,
1. A seat table device for a vehicle, wherein, of said first link and said second link, the link positioned below in the unfolded state of said table is bent upward and obliquely outward.

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