JPH10291437A - Seat device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To house an assist grip when it is not used, and to securely use it at need, and to improve the safety by arranging an assist grip so as to be switched between a non-use position, in which the assist grip is housed inside through an opening provided in a top surface of an arm rest, and a use position, in which the assist grip is projected for use from the top surface of the arm rest. SOLUTION: An arm rest 10 is fitted to each left and right side of a seat back 3, and each arm rest 10 is provided with each assist grip 11. A grip 11A of the assist grip 11 is housed inside of the arm rest 10 when it is not used, and the grip 11A is projected from inside of the arm rest 10 at the time of using the assist grip 11. At the time of using the assist grip 11, when an occupant pushes a switch 12 provided on a control panel 14, an electromagnetic magnet is operated, and the grip is projected by the reaction of a coil spring. With this structure, the assist grip 11 is housed when it is not used, and the grip 11 can be securely and instantaneously held when it is to be used, and safety is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device suitable for a vehicle that often travels on off-roads that are not maintained as roads such as mountainous areas and sandy beaches.

[0002]

2. Description of the Related Art In general, recreational vehicles (hereinafter referred to as "RV vehicles") are designed to be expected to travel off-road, and are designed with particular emphasis on the safety of occupants against vibrations experienced during off-road travel. ing. Further, an assist grip is provided in the vehicle cabin as a means for catching the occupant by hand when the vehicle body shakes greatly. The assist grip is mounted so as to protrude from a rear side of a seat back of an installed seat or a side wall of a roof.

[0003]

However, in the case where the assist grip is provided on the rear side of the seat back,
In addition to being limited to those who can use the rear seat, there is a possibility that the occupant may hit the assist grip protruding into the cabin when a collision accident occurs when the occupant is not using the occupant. Also, if the assist grip is protruding from the side wall of the roof, it is difficult to reach the grip depending on the position where the assist grip is provided and the sitting height of the occupant, etc. There are many cases where people say they felt dangerous.

The present invention has been made in view of the above problems, and a first object of the present invention is to provide an assist grip on a seat as a standard feature so that the seat can be used reliably when needed, thereby improving safety. It is in. A second object is to install the apparatus without hindrance when not in use and without sacrificing the sheet holding performance. A third object is to enable the seat to function effectively when the seat is of a rotary type, as well as when the vehicle is traveling on a rough road. Further, other objects will be clarified sequentially in the contents described below.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a vehicle seat apparatus 1 having an armrest 10 provided on a seat side as shown in the drawings. Unused position in which the assist grip 11 includes an assist grip 11 including a grip portion 11A with a handle and a base portion 11B provided below the grip portion 11A, and the assist grip 11 is stored inside from an opening 18 provided in the upper surface 11a of the armrest. And a use position protruding from the armrest upper surface 11a. In the above structure, the assist grip 11 is
A biasing means 21 that constantly biases A in a direction protruding from the upper surface 10a of the armrest, and is provided around the base 11B and locked at the unused position against the biasing force of the biasing means 21. It is preferable to have locking means 16A, 16B and 22 and an operation unit 22 for operating the locking means. Further, it is preferable that the operation unit 22 is provided on the side surface of the armrest 10 as the control panel 14 with a switch.

According to this, if the assist grip is stored in the armrest when the assist grip is not used, it does not hinder the use of the armrest. On the other hand, when using the assist grip, the assist grip is arranged on the armrest. In this structure, the assist grip is usually arranged at the most convenient position on the armrest where the hand is placed, so that it is possible to hold the assist grip by hand regardless of the size of the body such as sitting height. In addition, the assist grip is built into the armrest incorporated in the seat, so even if the entire seat is rotated by a rotating mechanism or the seats are placed face to face, they are always in the same position with respect to the occupant. An assist grip will be provided.

[0007]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, although the form described below is a preferable specific example of the present invention, various technically preferable limitations are added thereto. However, the scope of the present invention is not limited to the following description, which particularly limits the present invention. It is not limited to these forms unless otherwise stated.

FIGS. 1 and 2 are schematic perspective views showing a vehicle seat apparatus as an embodiment. The vehicle seat device 1 is, for example, an RV vehicle specification suitable for off-road driving, and includes a seat cushion 2 and a seat back 3.
And an adjusting mechanism 4 provided at the lower portion of the seat cushion 2 so as to rotate the entirety and slide in the front-rear direction, and a lifter mechanism 5 provided at a lower portion of the adjusting mechanism 4 to adjust the entire vertical position. Has become. The seat cushion 2 is provided with a step mechanism 6 used as a footrest for rotating a seat while sitting or putting a foot on a rough road, and a seat belt buckle 7 or the like is mounted. ing. The step mechanism 6
Can be folded and stored out of the way when not in use (see FIG. 2).

On the other hand, a headrest 8 is mounted on the seatback 3 side, and a built-in type seatbelt 9 which is engaged with the seatbelt buckle 7 is mounted. Each is attached. Each of the armrests 10 is provided with an assist grip 11, which is usually hidden in the armrest 10, and is the most characteristic feature of the present invention, which is projected from an arm holding surface (upper surface of the armrest) 10a only when used. Each is provided. Further, a switch (A, B) 12 for a circuit for controlling the movement of a stopper 22, which will be described later, when the position of the assist grip 11 is releasably locked, is provided on the inner side surface of the one armrest 10, together with the seat cushion 2. A control panel 14 provided with various switches 13 for performing height, front-rear adjustment, and the like is provided.

When the assist grip 11 is not used, as shown in FIG.
When used, the grip portion 11A is protruded from the inside of the armrest 10 as shown in FIG. Also, this assist grip 11
FIGS. 3 and 4 show a mechanism for moving the vertical direction (forward / backward). FIG. 3 is a perspective view of the main part.
FIG. 4 is a schematic side view partially broken away.

A detailed structure of the assist grip lifting / lowering mechanism for controlling the advance / retreat of the assist grip 11 will now be described in detail with reference to FIGS. Assist grip 11
Is composed of a grip portion 11A having a through hole 15 through which an occupant can insert and hold a hand, and a base portion 11B integrally formed below the grip portion 11A. Although the material is a resin molded body, decoration processing may be performed by attaching a cloth or the like to the grip portion 11A. Locking projections 16A and 16B are integrally formed on the opposing side surfaces of the base 11B so as to be vertically separated from each other. On the lower surface side of the base portion 11B, an intermediate portion excluding both side portions is formed one step lower, and a pair of spring receiving holes 17 are formed in the lowered concave portion 11c at a predetermined depth from the lower surface as shown in FIG. I have. The arm holding surface 10a of the armrest 10 has an opening 1 for the grip portion 11A to advance and retreat from within the armrest 10.
8 are formed. In drawing, armrest 1
0 is omitted, and only the skin material 10b covering the pad is shown, but the pad is provided with a recess corresponding to the opening 18, An opening 18 is formed in the skin material 10b corresponding to the recess.

In addition, in the armrest 10, below the assist grip 11, a frame 19 capable of storing the lower side of the assist grip 11 with respect to an armrest frame (not shown) is fixedly arranged. The frame 19 includes a bracket 20 fixed to the inner bottom surface side.
A coil spring 21 as urging means disposed between the bracket 20 and the assist grip 11, and a stopper 22 for regulating the amount of protrusion of the assist grip 11
And an electromagnetic magnet 23, a limit switch 24 (see FIG. 4), and the like. Among them, bracket 2
Numeral 0 is made of resin and has on its upper surface a spring receiving hole 20a formed corresponding to the spring receiving hole 17 on the assist grip 11 side. And the coil spring 21
Is provided with one end engaged and positioned in the spring receiving hole 17 and the other end engaged and positioned in the spring receiving hole 20a and compressed between the assist grip 11 and the bracket 20. The reaction force urges the assist grip 11 to always protrude upward.

Stopper 22 and electromagnetic magnet 23
Are the locking protrusions 16A, 16A of the assist grip 11.
B are respectively provided on both sides of the assist grip 11 so as to correspond to B. The stopper 22 is always connected to the base 11B of the assist grip 11 by a spring (not shown).
The assist grip 11 can be locked at the engaged position by being engaged with the locking projections 16A and 16B, and when the electromagnetic magnet 23 is energized, the stopper is stopped. The structure is such that the assist grip 11 can be moved up and down by moving the assist grip 11 in the direction away from the base 11B to release the engagement with the locking projections 16A and 16B. The on / off of the electromagnetic magnet 23 is controlled by the controller 26 (see FIG. 4).

The limit switch 24 is mounted on one side of the base 11B so as to correspond to the locking projection 16B. The limit switch 24 detects when the assist grip 11 has been moved from the lower side to the upper side to a predetermined position, or conversely, when the assist grip 11 has been moved from the upper side to the lower side to a predetermined position. Input the signal.

Next, the operation of the assist grip lifting mechanism will be outlined. First, usually, the assist grip 11 does not interfere with the use of the armrest 10,
As shown by a dashed line in FIG. 4, the upper surface of the grip portion 11A is pushed into the inside of the armrest 10 until it is substantially flush with the arm holding surface 10a, and the stopper 22 projects above the locking projection 16A. The upper movement of the ice grip is locked. Therefore, the assist grip 11 is held at the non-use position against the reaction force of the coil spring 21. FIG. 2 shows a state in which the assist grip 11 is arranged at the non-use position in this manner.

On the other hand, when the assist grip 11 is used, the occupant presses the switch 12 on the side of the control panel 14 on which the assist grip 11 is to be protruded.
Switch 12 is set to 2 so that
However, the assist grips 11 may be operated in conjunction with each other. Then, the electromagnetic magnet 23 operates via the controller 26, and slides the stopper 22 in a direction away from the base 11B. Then, the lock to the locking projection 16A is released, and the assist grip 11 is
1, the grip portion 11A is opened by the reaction force of 1
It is moved in the direction protruding from. When the assist grip 11 moves by a predetermined amount, a signal from the limit switch 24 is input to the controller 26 and the controller 2
6 turns off the power supply to the electromagnetic magnet 23. Then, the stopper 22 projects again toward the base 11B. And
When the assist grip 11 is moved up to a predetermined position (use position), the locking projection 16B is moved to the stopper 22.
To restrict the assist grip 11 from moving further upward, and hold the assist grip 11 at this position. In this state, the assist grip 1
The first grip portion 11A projects from the arm holding surface 10a of the armrest 10. The state shown by the solid line in FIGS. 3 and 4 and the state shown in FIG. 1 show the state in which the assist grip 11 is arranged at the use position in this manner. Therefore, in this state, the occupant operates the grip portion 11A of the assist grip 11 on the armrest 10.
Can be used by holding it with a hand.

Conversely, when the assist grip 11 is retracted, the occupant presses the switch 12 on the side where the assist grip 11 on the control panel 14 is to be stored in the armrest 10. Then, the electromagnetic magnet 23 operates via the controller 26 and the stopper 22 is moved to the base 1.
Slide in the direction away from 1B. Then, the lock on the locking projection 16B is released. With the switch 12 depressed in this manner, the assist grip 11 is moved downward against the reaction force of the coil spring 21, that is, in a direction in which the grip portion 11 </ b> A is retracted from the opening 18 into the armrest 10. When the assist grip 11 is moved downward to the unused position, a signal from the limit switch 24 is input to the controller 26, and the controller 26 cuts off the power supply to the electromagnetic magnet 23. Then, the stopper 22 is again moved to the base 11B.
Projected to the side. When the force pushing down the assist grip 11 is released, the locking projection 16A comes into contact with the stopper 22, and the assist grip 11 is again held at this unused position. As described above, in the structure of the present embodiment, the assist grip 11 is operated by operating the assist grip 11 while pressing the switch 12 on the side on which the operation of the assist grip 11 is desired.
Can be entered and exited.

Accordingly, in the vehicle seat device having the assist grip lifting mechanism configured as described above, the assist grip 11 can be stored in the armrest 10 when the assist grip 11 is not used. Does not interfere with use. Conversely, when using the assist grip 11, normally,
Since the assist grip 11 is arranged at the most convenient position on the armrest 10 where the hand is arranged, anyone can securely and instantly grasp the assist grip 11 irrespective of the physique and the like. Can be improved. Further, since the assist grip 11 is provided on the armrest 10 incorporated in the seat back 3, the occupant can always use the assist grip 11 even when the entire seat is rotated. Moreover, there is no problem that the holding characteristics on the sheet side are impaired.

In the above embodiment, the mechanism for switching and disposing the assist grip 11 or the elevating mechanism is as follows.
A well-known mechanism can be applied to other than this embodiment. However, also in this case, the urging means which constantly urges the assist grip 11 in the direction protruding from the upper surface 10a of the armrest, and the assist grip 11 is engaged with the non-use position against the urging force of the urging means. With the locking means to be stopped and the operating section for operating the locking means, the assist grip 11 does not inadvertently protrude, and does not impair reliability.

[0020]

As described above, according to the present invention,
When not using the assist grip, the assist grip can be stored in the armrest so that it does not hinder the use of the armrest. Since the assist grip can be arranged at the position, anyone can reliably grasp by hand regardless of the physique, etc., and safety is improved. In particular, the effect is great when used in a seat device or the like for an RV vehicle that frequently travels off-road. When the present invention is applied, the assist grip can be used even in a seat device that rotates the entire seat, and the safety is improved in this respect as well. In addition, since the assist grip is incorporated in the armrest, the seat holding characteristics are not sacrificed, and the appearance characteristics when not in use are not reduced.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a vehicle seat device to which the present invention is applied in a use state of an assist grip.

FIG. 2 is a schematic perspective view showing a state where the assist grip is not used.

FIG. 3 is a schematic perspective view showing an internal structure of an armrest in the seat device.

FIG. 4 is a schematic side view showing the internal structure of the armrest partially broken away.

[Explanation of symbols]

 Reference Signs List 1 vehicle seat device 2 seat cushion 3 seat back 10 armrest 10a arm holding surface (upper surface of armrest) 11 assist grip 11A grip portion 12 switch (operation portion) 14 control panel 16A, 16B locking projection (locking means) 18 opening 21 Coil spring (biasing means) 22 Stopper (lock means)

Claims (3)

[Claims] 1. A vehicle seat device having an armrest provided on a seat side portion, wherein the armrest includes a grip portion having a through hole,
An assist grip comprising a base provided at a lower portion of the grip portion, and an unused position where the assist grip is stored inside an opening provided on an upper surface of the armrest, and a use position where the assist grip projects from the upper surface of the armrest. A seat device for a vehicle, wherein the vehicle seat device is incorporated so as to be switchable. 2. The assist grip according to claim 1, wherein said assist grip constantly biases said grip portion in a direction protruding from an upper surface of said arm rest, and said assist grip is provided around said base to oppose a biasing force of said biasing means. The vehicle seat device according to claim 1, further comprising: a lock unit that locks the lock unit in the unused position; and an operation unit that operates the lock unit. 3. The vehicle seat device according to claim 2, wherein the operation unit is provided as a control panel with a switch on a side surface of the armrest.