JPH0522436Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Summary] In place of a seat belt, a U-shaped arm supported by a part of the backrest of the seat is provided to surround the person seated in the seat. In vehicle seats where the arm is stored in the backrest when not in use, a hook is provided on the back of the backrest and a metal fitting provided on the U-shaped arm is attached to the hook for securing the arm during use. By fixing it to, it can be easily fixed when not in use.

[Industrial application field]

TECHNICAL FIELD The present invention relates to a vehicle seat, and more particularly to a vehicle seat adapted to be used as an infant seat.

When a person, especially an infant, sits on a vehicle seat, a protective enclosure is placed on the seat to protect the infant from falling or flying out, depending on the shape of the seat or the driving conditions of the vehicle in which the seat is installed. It is necessary to provide

[Conventional technology]

One of the most common traditional protective enclosures is the seat belt. Additionally, when enclosing an infant in a vehicle seat, an infant seat with a separate protective enclosure may be used, and this infant seat is secured to the vehicle seat with a seat belt. It was hot. The above-mentioned child seat requires the complicated work of attaching or removing the child seat depending on whether an adult or a child is sitting in the vehicle seat, for example. Further, if the seat belt that secures the infant seat to the vehicle seat loosens, the infant seat becomes unstable and dangerous.

Therefore, Utility Model Application Publication No. 61-125844 and Utility Model Application No. 125844
Publication No. 605363 discloses that a protective enclosure in the shape of a U-shaped arm is rotatably supported on a part of the backrest of a seat, and when in use, the U-shaped arm is folded forward.
A device has been disclosed in which the U-shaped arm is housed integrally with the backrest when not in use. FIG. 4 is a diagram showing the basic configuration of the vehicle seat disclosed in the above-mentioned document.

In FIG. 4, reference number 1 indicates a vehicle seat, 2 indicates a backrest portion, 3 indicates a seat portion,
4 indicates the surrounding part. When in use, the enclosing part 4 is pulled out as shown, and when not in use, the enclosing part 4 is stored in the backrest part 2.

[The problem that the idea attempts to solve]

When storing the U-shaped arm integrally with the backrest, the U-shaped arm must be firmly fixed to the backrest for safety and riding comfort. However, in the example of engagement of the U-shaped arm with the backrest portion during storage disclosed in the above-mentioned document, the U-shaped arm is engaged by the contact pressure between the U-shaped arm and the backrest portion. A suitable example was shown.
Therefore, there was a problem that it was difficult to hold the U-shaped arm with sufficient strength, and the holding state was unstable.

As another example of engagement, a configuration is shown in which the stay of the headrest is used for locking, but with this configuration, there is no problem in holding the U-shaped arm.
There was a problem in that it was troublesome to switch the U-shaped arm between a used state and an unused state.

Furthermore, when using the arm, it is desirable to lock the arm to the seat cushion in order to prevent the infant from falling off the seat. However, this belt gets in the way when the arm is not in use, so it is not practical for practical use. The device disclosed in Publication No. 605363 had a problem in that it was purposely provided with a belt winding mechanism, which increased costs.

The present invention has been made in view of the above problems, and aims to realize a vehicle seat equipped with a mechanism that can securely hold a U-shaped arm with a simple mechanism.

[Means to solve the problem]

In order to solve the above problems, in the vehicle seat of the present invention, the metal fitting of the belt that is engaged with the hook of the seat part when the U-shaped arm is used is configured to engage with the hook on the back of the backrest part. do.

That is, the vehicle seat of the present invention forms an enclosure between the backrest part, the seat part, and the backrest part by freely rotating using a part of the backrest part as a fulcrum during use. A vehicle seat equipped with a U-shaped arm that wraps around a seated person and is housed in a step provided in the backrest when not in use, the U-shaped arm having a stopper at one end. A vehicle seat comprising a belt whose other end is fixed to the center of the U-shaped arm, the seat section is provided with a hook, and when the U-shaped arm is used, the metal fittings of the belt are engaged with the hooks of the seat section. be. In order to solve the above problem, the backrest is provided with a hook on the back, and the U-shaped arm is held on the backrest by engaging the metal fittings of the belt with the hook of the backrest. It is characterized by

[Effect]

In the vehicle seat of the present invention, hooks are required in two places, the seat part and the backrest part, but the belt can be shared, and in both cases, the belt is locked to the hook, so the winding mechanism is This can be achieved with a simple mechanism without the need for such a complicated mechanism. Moreover, since the belt is hooked even when not in use, the U-shaped arm can be firmly fixed to the backrest, and there is no problem from a safety standpoint.

〔Example〕

1, 2, and 3 are perspective views showing a vehicle seat according to an embodiment of the present invention, and FIG. 1 is a perspective view of the U-shaped arm in use as seen from the front side. FIG. 2 is a perspective view of the U-shaped arm in the retracted state, seen from the front, and FIG. 3 is a perspective view of the U-shaped arm in the retracted state, seen from the rear. FIG.

In the figure, the backrest part and the seat part are respectively comprised of a seat bag 20 and a seat cushion 30, forming the seat 1. The U-shaped arm 40 is
When not in use, it is stored in the step 23 provided in the seat bag 20, and when in use, the step part 26 of the step 23 is sandwiched between the open ends of the U-shaped arm 40, and the rotary shaft 22 as a fulcrum is passed through each other. It is engaged with the seat bag 20. It can be done. This U-shaped arm 40 freely rotates about the rotating shaft 22 as a fulcrum, thereby hitting the step bottom 24 of the step 22 and being supported substantially horizontally. Further, one end of a belt 41 is fixed to the center of this U-shaped arm 40,
A stopper 42 is provided at the other end of the belt 41. This stopper 42 and seat cushion 30
By engaging the hook 31 provided on the front side of the U-shaped arm 40, the U-shaped arm 40 is engaged with the seat cushion 30 via the belt 41.

Further, when not in use, the hook 25 provided on the back surface of the seat bag 20 and the stopper 42 of the belt 41 are engaged, and the U-shaped arm 40 is housed in the step 23 of the seat bag 20 and held on the seat bag 20. Note that the seat bag 20 is provided with a head rest 21, which not only receives a person's head but also serves to protect the firepit that receives an impact. This results in
The U-shaped arm 40 is firmly fixed to the seat bag 20, so that even if a large force is applied to the seat bag 20 due to sudden braking, etc., the U-shaped arm 40
There is no fear that the seat bag will come off from the seat bag 20.

With the above configuration, the process from first taking out the stored U-shaped arm 40 from the seat bag 20 to surrounding the seated person (particularly an infant) with this U-shaped arm 40 will be explained. By pressing a lock release button (not shown), the engaged stopper 42 of the seat belt 41 is removed from the hook 25 on the back of the seat bag 20. Pass the belt 41 together with the removed stopper 42 between the headrest 21 and the seat bag 20 and through the front surface of the seat bag 20 to the seat cushion 30.
It engages with the hook 31 on the front side of the. At this time,
Accompanied by the belt 41, the U-shaped arm 40 begins to move away from the step 23 of the seat bag 20 while freely rotating around the rotating shaft 22, and moves toward the step wall 24.
By abutting against and stopping, the U-shaped arm 40 is supported substantially horizontally. This completes the encirclement of the infant.

Next, the case where the U-shaped arm 40 is stored in the seat bag 20, that is, the case where the infant is released from the encirclement and the infant is removed from the seat 1 will be explained.
The stopper 42 of the seat belt 41 engaged with the hook 31 of the seat cushion 30 is removed by pressing a lock release button (not shown). Pass the belt 41 together with the removed stopper 42 through the front of the seat bag 20 and between the headrest 21 and the seat bag 20, and connect it to the hook 25 on the back of the seat bag 20 and the stopper 4 of the belt 41.
2. At this time, accompanied by the belt 41, the U-shaped arm 40 rotates freely around the rotating shaft 22 and slides over the step 23 of the seat back 20.
is stored in. Therefore, since the infant is released from the encirclement, the infant can be easily removed from the seat 1. Thereby, it is possible to easily enclose and unenclose the infant in one seat.

In addition. The belt 41 not only fixes the U-shaped arm 40 to the seat cushion 30 but also has the function of preventing the seated person from slipping off the seat 1.

Further, by applying a flexible material to the surface of the U-shaped arm 40, contact with a sitting person may be softened.

Furthermore, the U-shaped arm 40 is attached to the seat back 20.
By providing a mechanism that slides up and down and back and forth along the stepped side portion 26 and stepped bottom portion 24 of may be changed freely.

Further, in this embodiment, an example was shown in which the enclosing means of the present invention was applied to a vehicle seat, but it may also be applied to general seats, such as seats in movie theaters, chairs at home, etc.

[Effect of idea]

As explained above, according to the present invention, the belt is hooked to the hook even when not in use, so the U-shaped arm can be firmly fixed to the backrest, which improves safety. there is no problem. Furthermore, the belt can be used both when the arm is in use and when it is not in use, and in both cases, the belt is locked onto the hook, so there is no need for a complicated mechanism such as a winding mechanism, and it is a simple mechanism. The effect is that it can be realized.

[Brief explanation of the drawing]

FIG. 1 is a front perspective view of an embodiment of the vehicle seat based on the present invention, showing the U-shaped arm in use, and FIG. FIG. 3 is a perspective view of the vehicle seat in the state shown in FIG. 2, viewed from the rear, and FIG. FIG. 2 is a diagram showing the basic configuration of a vehicle seat in which a letter-shaped arm is housed in a backrest. 20...Backrest part (seat back), 21...
Step, 25... Hook, 30... Seat part, 31
... Hook, 40 ... U-shaped arm, 41 ... Belt, 42 ... Stopper.

Claims (1)

[Scope of Utility Model Registration Claims] The backrest portion 20, the seat portion 30, and the seat portion 30, which can be enclosed between the backrest portion 20 and the backrest portion 20 by freely rotating using a part of the backrest portion 20 as a fulcrum during use. A vehicle seat is provided with a U-shaped arm 40 that forms a U-shaped arm to wrap around a seated person, and is accommodated in a step 23 provided in the backrest portion 20 when not in use, the U-shaped arm 40 is a stopper 42 at one end.
is provided with a belt 41 whose other end is fixed to the center of the U-shaped arm 40, the seat portion 30 is provided with a hook 31, and when the U-shaped arm 40 is used, the metal fitting 42 of the belt 41 is Hook 3 of the seat portion 30
1, the backrest portion 20 is provided with a hook 25 on the back surface, and the metal fitting 42 of the belt 41 is attached to the backrest portion 2.
A vehicle seat characterized in that the U-shaped arm 40 is held by the backrest portion 20 by engaging with a hook 25 of the vehicle seat.