JPH05300821A - Arm-rest structure of automobile - Google Patents

Abstract

PURPOSE:To prevent a person sitting at the rear seat from laterally moving and increase safety by pushing forward arm arm-rest body to function as a shoulder pad in case of side crash of a car. CONSTITUTION:When an arm-rest is not used, the front end of a hook 11 drops in a hook hole 15 to fit to it and, as a result, the arm-rest body 9 is unified with a support frame 4. When the car crashes at the side thereof and the external plate of the car deforms inwardly, slide rods 25, 26 shift relatively to draw one or both of wires 27, 28 and pull out a lock pin 19 from a lock hole 18 against the spring force of a spring 22. As the result, the upperend of the support frame 4 is pushed out with a stroke equal to the nearly free length of the spring 16A by the spring force in the unified condition with the arm-rest body 9. In this way, the arm-rest body 9 is forced to function as a shoulder pad to hold the shoulder of a person who is seated, by protruding the arm-rest body 9 from the containing recession 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile armrest structure, and more particularly to a passenger armrest structure which is provided in a central portion of a seat back of a rear seat and can also function as a shoulder pad for a side collision.

[0002]

2. Description of the Related Art Among vehicle seats, for example
As disclosed in Japanese Patent Laid-Open No. 1-79832, in order to prevent a secondary collision by suppressing inertial movement of a seated person in the vehicle width direction at the time of a side collision of a vehicle, a shoulder that receives a seated person's shoulder is provided on a seat back. It is known that the pads are integrally projected.

[0003]

When the driver side seat and the assist side seat are left and right independent like the front seat, the shoulder pad is integrally formed on the side portion of the seat back on the center side of the passenger compartment as described above. Even if it is projected, there is no particular obstacle to getting on and off, but for the same reason, if a shoulder pad is integrally projected at the center of the seat back of the rear seat, the projection of this shoulder pad will Or, it may be an obstacle when moving left and right.

Therefore, according to the present invention, the armrest body can be stored and taken out freely in normal times, and the armrest body can function as a shoulder pad in the case of a side collision when the armrest body is stored. It provides the structure.

[0005]

A support frame having a lower end rotatably supported in a storage recess formed in the center of a seat back of a rear seat so as to be rotatable in the front-rear direction, and a lower end rotatably supported by the support frame. Then, the armrest main body rotatably mounted at the storage position in the storage recess and the use position on the seat cushion, the push means for pushing the upper end of the support frame forward, and the support frame in the normal state are stored. It is provided with a lock means fixed in the recess and a collision detection means for detecting a side collision of the vehicle and unlocking the lock means.

[0006]

When the upper end of the armrest main body is grasped and pulled out from the storage recess, the armrest main body pivots forward about an axis fulcrum of the lower end of the armrest main body and the support frame, and is placed in the use position on the seat cushion. It can be used as an armrest.

When the armrest is not used, that is, when the armrest body is rotated and stored in the storage recess,
When a side collision of a vehicle occurs, the collision detection means promptly detects this and unlocks the lock means. At the same time, the support frame is rotated about the shaft fulcrum of the lower end by the pushing force of the pushing means to push out the upper end, and the upper end of the armrest body is integrally projected with the support recess from the storage recess to shoulder pad. Can function as.

[0008]

An embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 8, 1 is a seat cushion for the rear seat, 2 is a seat back for the rear seat, and a storage recess 3 is formed in the center of the seat back 2.

Reference numeral 4 denotes a support frame for an armrest body 9, which will be described later. The support frame 4 has a lower end bracket portion 5 supported by a bracket 8 provided on a vehicle body panel, for example, a rear parcel shelf 7, in the storage recess 3. 6 is attached so as to be rotatable in the front-rear direction.

Reference numeral 9 denotes an armrest body. The armrest body 9 has a lower end portion connected to a front end portion of the bracket portion 5 of the support frame 4 by a support shaft 10 so that the armrest body 9 can be used in the storage position in the storage recess 3 and on the seat cushion 1. It is rotatably attached to the position.

When the armrest body 9 is rotated to the storage position in the storage recess 3 of the seat back 2, the elastic sliding contact with the peripheral edge of the storage recess 3 suppresses forward free rotation. In the embodiment, in order to ensure the shoulder pad function described later, the free end of the armrest body 9 is locked by the hook 11 so that it can be integrated with the support frame 4 in the storage recess 3. There is.

The hook 11 is rotatably supported by a pin 13 on a bracket 12 fixed to the upper edge portion of the support frame 4, and a spring seat extended to the rear end portion and the upper edge portion of the support frame 4. The spring 14 is mounted between the armrest main body 3 and the spring 11a.
Is urged in a direction to engage with the hook hole 15 provided at the free end of the.

When the outer edge portion of the tip of the hook 11 is formed in an arc shape and the armrest body 9 is rotated into the storage recess 3 while the support frame 4 is locked in the storage recess 3 as described later. The free end passes through the outer edge portion of the tip of the hook 11 so that the hook 11 falls into the hook hole 15 and engages with it.

Reference numeral 16 is a push means of the support frame 4,
In this embodiment, the spring 16A is used, and the spring 16A is fixedly mounted on the rear surface of the upper end portion of the support frame 4,
When the support frame 4 is fixed in the storage recess 3 by the locking means 17, the spring 16A elastically contacts the rear parcel shelf 7 so that a forward biasing force is generated at the upper end of the support frame 4. is there.

The locking means 17 in this embodiment is
A lock pin mechanism is used by engaging a lock pin 18 and a lock hole 18 provided at a side edge of the support frame 4.

The lock pin 19 is the rear parcel shelf 7
A spring 2 that is axially slidably supported by a bracket 20 that is fixed to the bracket 20 and that is elastically mounted between the bracket 20 and a spring seat 21 formed on the lock pin 19.
By 2 it is urged in the direction to engage with the lock hole 18.

Reference numeral 23 is a collision detecting means for detecting a side collision of the vehicle and unlocking the locking means 17, and in this embodiment, the locking means is detected by detecting the deformation of the vehicle body outer plate OP at the side collision. The lock release operation of 17 is performed.

The collision detecting means 23 includes a pair of slide rods 25, 26 axially supported coaxially in the vehicle width direction on a bearing 24 fixed to the rear parcel shelf 7, and the slide rods 25, 26 in the vehicle width direction. And the wires 27 and 28 for transmitting the relative movement of the lock pin 19 as a pulling force in the unlocking direction of the lock pin 19.

One end of each of the slide rods 25 and 26 is connected to the vehicle body outer plate OP. A socket portion 29 is formed at the other end of the one slide rod 25, and the other end of the other slide rod 26 is slidably fitted into the socket portion 29. And these slide rods 2
One ends of wires 27 and 28 for transmitting the respective axial movements to the lock pins 19 are joined in the vicinity of the fitting and inserting portions of 5, and 26,
The other end is connected to the rear end of the lock pin 19. Thirty
Indicates a wire guide.

According to the structure of the above embodiment, when using the armrest, the hook 11 is removed and the armrest body 9 is removed.
When the free end portion of the armrest main body 9 is pulled out from the storage recessed portion 3, the armrest main body 9 pivots forward about an axis fulcrum with the support frame 4 at the lower end portion thereof, as shown by a chain line in FIG. It is located in the use position on 1, and can be used as an armrest as usual.

When the armrest body 9 is not used, the free end of the armrest body 9 is hooked by rotating the armrest body 9 from the above-mentioned use position to the storage position in the storage recess 3.
Through the tip of the hook, and the tip of the hook 11
The armrest main body 9 is integrated with the support frame 4 by being engaged with the support frame 4 by dropping.

When the armrest main body 9 is in the retracted state and the vehicle collides sideways and the vehicle body outer panel OP is deformed toward the passenger compartment, the slide rods 25 and 26 move relative to each other, and one of the wires 27 and 28 or Both are pulled, and the lock pin 19 is pulled out from the lock hole 18 against the spring force of the spring 22, as shown in FIG.

As a result, as shown in FIG. 6, the support frame 4 is extruded from the storage recess 3 with the stroke thereof corresponding to the substantially free length of the spring 16A due to the spring force of the spring 16A while the upper end of the support frame 4 remains integral with the armrest body 9. As a result, the armrest body 9 projects from the storage recess 3 as shown in FIG. 8 and can function as a shoulder pad that receives the shoulder of the seated person.

In the above embodiment, the locking means 1
Although the lock pin type is shown as 7, a latch type or the like can be used, and the collision detecting means 23 uses the G sensor for detecting the deceleration of the vehicle in addition to the above-described locking means 17 for the locking means 17. May be electromagnetically unlocked. Further, the push means 16 may be replaced with the above-mentioned spring 16A, and various actuators that respond to the detection action of the collision detection means 23 may be used.

[0026]

As described above, according to the present invention, the armrest main body stored in the storage recess of the rear seat back is effectively used, and when a side collision of the vehicle occurs, the armrest main body is pushed forward to serve as a shoulder pad. Since it can be operated, it does not interfere with getting on and off at all in normal times, and in the case of an emergency such as a side collision, it can restrain the lateral inertial movement of the rear seat occupant to improve safety. It has a great effect.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of locking means.

FIG. 3 is a schematic layout diagram showing an example of a collision detection unit.

FIG. 4 is an explanatory diagram showing a relationship between a lock unit and a collision detection unit.

5 is an explanatory diagram of unlocking of FIG. 4. FIG.

FIG. 6 is a schematic explanatory view showing an operating mode of the push means.

FIG. 7 is a perspective view of a rear seat to which the present invention is applied.

FIG. 8 is a perspective view showing the shoulder pad function of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Seat cushion 2 ... Seat back 3 ... Storage recess 4 ... Support frame 9 ... Armrest main body 16 ... Push means 17 ... Lock means 23 ... Collision detection means

Claims (1)

[Claims] 1. A support frame in which a lower end portion is rotatably supported in a storage recess formed in the center of a seat back of a rear seat so as to be rotatable in the front-rear direction, and a storage recess in which the lower end portion is rotatably supported by the support frame. Armrest body that is rotatably mounted in the storage position inside and the use position on the seat cushion, push means that pushes the upper end of the support frame forward, and in the normal state, fixes the support frame in the storage recess. An armrest structure for an automobile, comprising: locking means for locking the vehicle; and collision detecting means for detecting a side collision of the vehicle to unlock the locking means.