JP3305575B2 - Child seat belt device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat belt device having a protection pad connected on one side to a seat cushion via a connection means and connected on one side to one end of two belts. About.

[0002]

2. Description of the Related Art As a protective pad storage structure in such a child seat belt device, those described in Japanese Utility Model Laid-Open Publication No. 63-34632 and Japanese Patent Laid-Open Publication No. Hei 5-162575 are known.

In the construction disclosed in Japanese Utility Model Laid-Open Publication No. 63-34632, a child seat cushion is pivotally supported on the front surface of a seat back so as to protrude forward. In such a folded state, the protection pad is stored between the tip of the child seat cushion and the headrest.

Further, in the vehicle described in Japanese Patent Laid-Open No. Hei 5-162575, a child seat cushion is pivotally supported on the front surface of a seat back so as to be able to protrude forward.
In a state where the child seat cushion is folded along the seat back, the protection pad is stored between the child seat cushion and the seat back.

[0005]

However, in the case of the former, since the protection pad in the stored state protrudes forward from the front surface of the seat back, a step is generated between the protection pad and the seat back, making the appearance unsightly. There's a problem.

In the case of the latter, since the protective pad is stored between the folded child seat cushion and the seat back, the child seat cushion is included in order to ensure a sufficient thickness of the child seat cushion. There is a problem that the seat back is inevitably thick.

The present invention has been made in view of the above circumstances, and has as its object to store a protective pad of a child seat belt device in a good appearance and without affecting the thickness of a seat back.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, one side can be connected to a seat cushion via a connecting means, and the other side can be connected to a seat cushion.
In a child seat belt device having a protective pad connected to one end of a book belt, a front surface of a seat back is provided.
The protective pad can fit a recess is formed, Shitoku
The front seat cushion and the rear seat cushion
And the front seat cushion
It can be raised against the rear seat cushion,
The recess is covered with the front seat cushion in the raised position.
Characterized in that that.

[0009]

According to the above feature , when the child seat belt device is not used, the protection pad is stored in a state of being fitted into the recess formed in the seat back.

[0010] Also, ask sit a child on the front seat cushion has been raised with respect to the rear seat cushion, the child's head can be widened field of view in the same height as an adult.

[0011] Since the recess formed Raising the front seat cushion in front of the seat back is covered, it is possible to improve the comfort when a child is seated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.

1 to 6 show a first embodiment of the present invention. FIG. 1 is a perspective view of a front seat of a vehicle, FIG. 2 is a view taken on line 2-2 of FIG. 1, and FIG. 2, FIG. 4 is an enlarged view of a main part of FIG. 2, FIG. 5 is an operation explanatory view when the central seat is used as a child seat, and FIG. 6 uses the central seat as an armrest. It is an operation explanatory view in the case.

[0014] As shown in FIGS. 1 and 2, the cabin front portion of the vehicle and the right seat S _R as a driver's seat, a left seat S _L as the passenger seat, the sheets S _L, between S _R a central sheet S _C sandwiched are juxtaposed in the lateral direction. Left sheet S _L and the right sheet S _R are each seat cushion 1 _L, 1 _R, composed of the seat back 2 _L, 2 _R and headrest 3 _L, 3 _R. The center seat S _C is a seat cushion 1 _C , a seat back 2 _C and a headrest 3.
_C is composed of a seat cushion 1 _C is divided into a rear seat cushion 5 of the front of the front seat cushion 4 and the rear side. Front seat cushion 4, the internal is formed in a hollow box shape so that it can house the articles, openable lid 4 ₁ is provided on its upper surface.

The front seat cushion 4 can be moved up and down via an elevating mechanism 6 between a lowered position which is continuous with the front side of the rear seat cushion 5 and a raised position where the rear end overlaps the front end of the rear seat cushion 5. Central sheet S _C
If ask front seat cushion 4 is lowered, and there can be an adult sits, also when caused to raise the front seat cushion 4 of the center seat S _C, it can be a child sitting therein.

As is apparent from FIG.
Seat belt device 7 for children provided in the center sheet S _C
It includes a seat back 2 _C of the right and left paired belts 9 and 9 which can feed on the upper surface from the retractor 8, 8 which is furnished to the seat back 2 _C, and Buckle 10 connected to the end of these belts 9 and 9, before a tongue housing recess 4 _second tongue 11 which is erected freely housed in which is formed on the upper central portion of the parts the seat cushion 4, mounted so as to cover the vicinity of the tip portions of the pair of left and right belts 9 and 9, i.e. the outer periphery of the buckle 10 And a protection pad 12 made of a soft material.
A protection pad storage recess 13 into which the protection pad 12 can be fitted is formed in the lower part of the front surface of the seat back _2C .

Next, the structure of the lifting mechanism 6 will be described with reference to FIG.

A pair of left and right fixed rails 2 fixed to a vehicle floor panel 21 via front and rear brackets 22 and 23.
A pair of left and right movable rails 25, 25 are supported on the left and right of the movable rails 25, 25, respectively.
The base frame 26 of the center sheet S _C is fixed to the upper surface of the base sheet 25. The front seat cushion 4 is supported at the front of the base frame 26 via a lifting mechanism 6 so as to be able to move up and down, and the rear seat cushion 5 is fixed to the rear of the base frame 26.

A four-joint link mechanism 27 for connecting the front seat cushion 4 to the base frame 26 includes a pair of left and right front link arms 29, 29 whose lower ends are pivotally supported on the base frame 26 by pins 28, 28, and a lower end. Is a pair of left and right rear link arms 3 pivotally supported on the base frame 26 by pins 30, 30.
1 and 31. The upper ends of the front link arms 29, 29 are brackets 3 provided on the lower surface of the front seat cushion 4.
The upper ends of the rear link arms 31, 31 are pivotally supported by brackets 34, 34 provided on the lower surface of the front seat cushion 4 with the pins 35, 35. A coil spring 36 is stretched between an intermediate portion of one of the front link arms 29 and the base frame 26, and the direction in which the four-link mechanism 27 is erected by the elastic force of the coil spring 36 to contract. That is, the front seat cushion 4 is urged in the upward direction.

The elevation position of the front seat cushion 4 can be adjusted in multiple stages by a lock mechanism 37. The lock mechanism 37 is provided with a pin 33 at the upper end of the one front link arm 29.
, A locked gear 38 composed of a sector gear formed around the lock gear 38, a lock piece 41 having a lock gear 39 engagable with the locked gear 38 and being slidable back and forth, and the lock gear 39 meshing with the lock gear 39. And a lever 44 pivotally supported by a pin 43 to swing the lock piece 41 back and forth.

When a finger is hung on the lower end of the lever 44 and pulled forward, the lock piece 41 slides forward, and the lock gear 3
The engagement between the gear 9 and the locked gear 38 is released. When the finger is released from the lever 44, the lock piece 41 slides rearward due to the elastic force of the coil spring 42, and the lock gear 3
9 meshes with the locked gear 38.

Next, the operation of the embodiment of the present invention having the above-described configuration will be described.

[0023] When using the front seat as an adult 3-seater, the seat cushion 1 _C of the center sheet S _C
The front seat cushion 4 is locked at the lowered position shown in FIG. Hence, the left sheet S _L of the seat cushion 1 _L, the seat cushion 1 _C of the right sheet S _R of the seat cushion 1 _R and the center seat S _C is the same height, can sit side by side three adults.

When the central seat S _C is used as a child seat, the front seat cushion 4 of the seat cushion 1 _C is drawn after the protective pad 12 is taken out from the pad storage recess 13 of the seat back 2 _C. Locking is performed at the raised position shown in FIG. In this state, the child is seated on the front seat cushion 4 as shown in FIG.
The two belts 9, 9 of the child seat belt device 7 are put along the shoulders and the chest of the child, and the tongue 11 is attached to the buckle 10.
Should be combined. At this time, the protection pad 12 prevents the buckle 10 from directly contacting the child's abdomen. Also when using a central sheet S _C as a child seat, since the original front seat cushion 4 and a seat back 2 _C is used as it is, the same comfort as when used as an adult seat is secured.

When the child seat belt device 7 is not used, the protection pad 12 is stored in the pad storage recess 13 of the seat back _2C so that the protection pad 12
There is no problem that the seat back is obstructed or the seat back _2C becomes thick. Moreover, since the protection pad 12 fitted into the pad storage recess 13 becomes a part of the seat back _2C , the pad storage recess 13 does not impair sitting comfort when an adult sits there. In addition, when the front seat cushion 4 is raised, the front seat cushion 4 covers the pad storage recess 13 of the seat back _2C , so that the back of the child sitting thereon hits the pad storage recess 13 and impairs the sitting comfort. There is no.

Furthermore, when the locking in the raised position the front seat cushion 4 of the seat cushion 1 _C, can be used as a passenger arm rest sitting on the left seat S _L or the right sheet S _R as shown in FIG. 6 . Further opening the lid 4 ₁ of front seat cushion 4, be carried out or out the article storage compartment formed inside the front seat cushion 4, the operation of the navigation system mounted on the inner surface of the lid 4 ₁ Can be. When the central seat S _C arranged substantially in the center of the vehicle is deformed, the right seat S _R
Also, since the left seat _SL is not deformed, the ride comfort of the occupant sitting left and right is not affected, and the occupant sitting left and right can talk fairly with the child sitting in the center.

When the front seat cushion 4 is locked, the lock gear 39 of the lock piece 41 is engaged with the locked gear 38 of the front link arm 29 as shown in FIG. Is restricted, and the front seat cushion 4 is fixed so as not to move up and down. By operating the lever 44, the lock gear 39 and the locked gear 38
When the meshing of the front seat cushion 4 is released, the front link arm 29 can be freely rotated, so that the front seat cushion 4 is automatically raised by the elastic force of the coil spring 36 or the front seat cushion 4 is The spring 36 can be pushed down against the resilience.

As described above, since the lock mechanism 37 locks the front seat cushion 4 by the engagement between the lock gear 39 and the locked gear 38, both gears 38, 39 are provided.
And the height of the front seat cushion 4 can be finely adjusted with a simple operation and a simple structure.

The upper seat cushion 4 supported by the four-link mechanism 27 moves substantially vertically in the vicinity of its lowered position, but the front link arms 29, 29 and the rear link arms 31, 31 stand upright. In the vicinity of the ascending position, it moves mainly in the front-back direction. Therefore, when the reclining angle of the seat back _2C is adjusted, if the front / back position of the front seat cushion 4 is adjusted in accordance with the forward / backward movement of the seat back _2C , the seat does not interfere with the front seat cushion 4. The back _2C can be reclined to any position.

FIG. 7 shows a reference example.

In this reference example, the child seat belt device 7
Pad storage recess 13 for storing protection pad 12
But it is formed on a surface bottom of the seat back 2 _C of the center seat S _C. This eliminates the need to form the protection pad storage recess 13 on the front surface of the seat back _2C where the back of the occupant hits, thereby further improving the sitting comfort.

In the first embodiment and the reference example,
The tongue 11 is provided on the protective pad 12 side, it is also possible to provide a buckle 10 to the seat cushion 1 _C side. In this case, it is sufficient to erect in use accommodates the buckle 10 in a recess provided in the seat cushion 1 _C as shown in FIG. Also out of the way buckle 10 housed in the recess when the sitting adults center seat S _C, it is also possible to paste a thin pad on the surface of the buckle 10.

FIG. 9 shows a second embodiment of the present invention.

[0034] This example, in the adult seat belt apparatus 45 which is provided originally as an adult in the center seat S _C that to be able to be used as a children's right and left of which one end is fixed to the floor panel 21 the buckle 47 and the tongue 48 provided respectively at the tip of the belt 46, 46 into the through-holes 12 ₁ through the protective pad 12 on the left and right is to bind internally.

Accordingly, the child sitting on the center seat S _{C can be} moved to the child seat belt device 7 and the adult seat belt device 4.
5, the buckle 47 and the tongue 48 of the adult seat belt device 45 are covered by the protective pad 12, and do not directly contact the child's abdomen.

FIG. 10 shows a third embodiment of the present invention.

In this embodiment, the foldable tongue 11 provided on the lower surface of the protection pad 12 is provided with a seat cushion 1 _C.
And the tongues 11 ′, 11 ′ provided on the belts 9, 9 are detachable from the buckles 10 ′, 10 ′ provided on the upper surface of the protection pad 12. Tongue 11 ', 11' and buckle 1
The release of the connection with 0 ', 10' is performed by pressing the release buttons 49, 49 provided on the upper surface of the protection pad 12.

[0038] In Thus, when not in use of the child seat belt device 7, along with removing the protecting pad 12 from the seat cushion 1 _C, in a state where the protective pad 12 was removed belt 9, 9, the protective pad 12 seatback The belts 9, 9 and tongues 11 ′, 11 ′ housed and wound in the protection pad housing recess 13 provided in 2 _C are provided in the seat back 2 _C.
Can be housed in a pair of left and right belt housing recesses 15 provided on the top surface of the belt. Since the belt receiving recess 15 and 15 is covered by the lower surface of the headrest 3 _C, when not in use the belt 9, 9 and a tongue 11 ', 11' becomes impossible visual appearance is further improved. The belt storage recesses 15, 1
Since 5 is mounted on the frame of the seat back _2C, the load applied to the belts 9, 9 can be strongly supported by the frame.

FIG. 11 shows a fourth embodiment of the present invention.

In this embodiment, instead of the belt storage recesses 15 in the third embodiment, the retractors 16 are mounted on the frame of the seat back _2C.
Since the belts 9 and 9 are automatically wound around the rollers 6 and 16, the convenience is further improved as compared with the third embodiment.

FIG. 12 shows a fifth embodiment of the present invention.

This embodiment is similar to the retractor 1 of the fourth embodiment.
The 6 and 16, instead of attaching the frame of the seat back 2 _C, in which attached to the frame of the seat cushion 1 _C.

When the child seat belt device 7 is mounted on the front seat slidable back and forth as in the third , fourth , and fifth embodiments, the belts 9, 9 are attached to the frame of the seat back _2C or the seat. it is necessary to attach to the frame of the cushion 1 _C.

FIG. 13 shows a sixth embodiment of the present invention.

In this embodiment, a child seat belt device 7 is mounted on a rear seat that does not slide back and forth. In this case, the belt storage recesses 15, 15 (or the retractors 16, 1) are provided in the vehicle body panel 50 behind the rear seat.
By providing 6), the load applied to the belts 9, 9 can be received by the vehicle body panel.

Although the embodiments of the present invention have been described in detail, various design changes can be made in the present invention without departing from the gist thereof.

For example, in the first embodiment, the seat back 2
_At the top of _C, the retractors 8, 8 for winding the belts 9, 9 are provided, but the belts 9, 9 may be bolted 18, 18 to the seat frame 17, as shown in FIG.

In the embodiment, the right seat S _R , the left seat _SL, and the center seat S _C which are independent from each other are arranged side by side in the left-right direction. It can also be applied to bench seats that share a back. Further, in the embodiment, the present invention is applied to the front seat. However, in a vehicle having three or more rows of front and rear seats, the present invention can be applied to the middle row of seats.
You .

[0049]

As described above, according to the present invention, since the recess in which the protection pad can be fitted is provided in the seat back, the protection pad is fitted in the recess when the child seat belt device is not used. By doing so, the protection pad can be stored without making the appearance unsightly and without increasing the thickness of the seat back.

[0050] The seat cushion are divided into the front seat cushion and a rear seat cushion, for front seat cushion can be raised with respect to the rear seat cushion, sit a child on the front seat cushion is raised By doing so, the child's head can be at the same height as an adult, and the field of view can be widened.

[0051] Since the concave portion formed on the front surface of the seat back is covered with a front seat cushion in a raised position,
The depression does not hit the back of the child, and the sitting comfort when the child sits can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a front seat of a vehicle.

FIG. 2 is a view taken along line 2-2 of FIG. 1;

FIG. 3 is a view taken along line 3-3 in FIG. 2;

FIG. 4 is an enlarged view of a main part of FIG. 2;

FIG. 5 is an operation explanatory view when the center sheet is used as a child seat;

FIG. 6 is a diagram illustrating the operation when the center seat is used as an armrest.

FIG. 7 is a view corresponding to FIG. 2 according to a reference example;

FIG. 8 is a diagram showing a modification of the coupling means.

FIG. 9 is a view corresponding to FIG. 1 according to a second embodiment of the present invention.

FIG. 10 is a diagram showing a third embodiment of the present invention.

FIG. 11 is a diagram showing a fourth embodiment of the present invention.

FIG. 12 is a diagram showing a fifth embodiment of the present invention.

FIG. 13 is a diagram showing a sixth embodiment of the present invention.

FIG. 14 is a diagram showing a modification of the belt.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 _C seat cushion 2 _C seat back 3 _C headrest 4 Front seat cushion 5 Rear seat cushion 8 Retractor 9 Belt 10 Buckle (joining means) 11 Tongue (joining means) 12 Protective pad 13 Protective pad storage recess (recess) 16 Retractor

Continuation of the front page (56) References JP-A-7-149176 (JP, A) JP-A-1-62941 (JP, U) JP-A 64-37741 (JP, U) JP-A 5-1574 (JP) , U) Japanese Utility Model Application Hei 6-65071 (JP, U) Japanese Utility Model Application Utility Model Hei 6-10062 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60R 22/10 B60N 2/26

Claims (1)

(57) [Claims] 1. A protective pad (1) having one side connected to the seat cushion (1 _C ) via connecting means (10, 11) and the other side connected to one end of two belts (9). In a child seat belt device having a seat cushion (12), a concave portion (13) into which a protective pad (12) can be fitted is formed on the front surface of a seat back (2 _C ).
( _1C ) is the front seat cushion (4) and rear seat cushion.
And the front seat
Cushion (4) against rear seat cushion (5)
The front seat cover in the raised position.
Characterized in that said recesses (13) are covered, the seat belt equipment for children with distribution (4).