JPH0144355Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology belongs to the technical field of a seat structure having a hinge that enables all seats to be made fully flat by reclining the seat back of a van-type vehicle or the like.

In this invention, a recess is formed at the base end of the seat back of a rear seat for a vehicle such as a van-type automobile, on which the rear end of the rear seat cushion is placed with the seat back in an inclined position. One of the hinge plates is fixed to the seat back, and the other hinge plate is fixed to the seat back lower which can be freely stored and separated from the recess of the seat back, and is rotatably movable at the lower end of the recess of the seat back. This invention relates to a vehicle seat that is connected to the other hinge plate that is pivotally supported, and in particular, one link hinge pin that is bent and formed into a predetermined shape pivots the hinge plate to the seat back lower on the tip side. Then, the hinge plate is fixed to the seat back lower, and on the other hand, a hinge plate fixed to the recess is pivotally provided on the rear end side, and the seat back lower is pivoted relative to the recess to connect the seat back recess and the floor. Store it between
Alternatively, this invention relates to a vehicle seat that can be extended and moved above a recess through the swinging of a link hinge pin, and can be set as a pillow on a seat back when the seat is in a fully flat position.

<Prior Art> As is well known, in automobiles, a mode in which the seat back of the front seat is folded backwards and is fully flat against the rear seat together with the seat cushion has been widely adopted. I'm getting used to it.

By the way, for example, in the rear seat of a van-type automobile, the rear seat 1 is connected to the seat cushion 3 of the seat back 2, as shown in FIG.
A recess 4 is formed at the base end of the seat back 2, and the seat back lower 5 is fitted into the recess 4 in order to provide a lumbar support function at the base pivoting portion to improve riding comfort for the occupants and to improve the appearance. At the same time, a type of configuration is adopted in which the tip of the seat bag of the front seat is stored.

In this case, when the seat back 2 of the rear seat 1 is tilted rearward to make it fully flat, the seat back lower 5 obstructs the smoothness of the fully flat position, as shown in FIGS. A seat hinge 6, as shown in FIG.
In the state 2' in which the seat back is tilted rearward, the seat bag lower 5 is retracted and set at the position 5' between the base end of the seat back 2 and the floor, and the seat cushion 3 of the front seat is is displaced to the position indicated by 3' via a well-known displacement device,
Set its upper end into the recess of the seat bag 2,
The plan was to make it fully flat as shown by the two-dot chain line.

Such technology is disclosed in the applicant's earlier application, for example, in Japanese Patent Application Laid-open No.
This is also disclosed in the invention published in No. 58-97530.

In this conventional embodiment, as shown in FIG. 3, the seat hinge 6 has one hinge plate 8 having a bolt hole 7 for the recess 4 of the seat back 2, and a bolt hole 9 for the seat back lower 5. The other hinge plate 10 has removable hooks 11 and 12 that fix the two plates together, and a hinge pin 15 is commonly inserted through the hinge portions 13, 14, and 14 of both plates so that the plates can pivot freely. Ta.

Therefore, as shown in FIGS. 2 and 4, the seat back lower 5 is set in the recess 4 of the seat back 2, or is simply set between it and the floor at the position indicated by the lower side 5'. There was a problem that there was only one option, and it did not have a function that could be used for both.

<Problems to be solved by the invention> However, when the seat back 2 of the rear seat 1 etc. is tilted as shown in FIG. Depending on the resting position of the occupant, a pillow may be desirable.

In such cases, as is well known, a cushion for a pillow is used as appropriate; however, having such a cushion at all times has the disadvantage that it is cumbersome to attach and remove, and it is also difficult to return the seat bag 2 to the standing position. However, there is a drawback that the storage position of the cushion requires a certain amount of space.

Further, as shown in FIG. 4, when the seat is in a fully flat state, the seat back lower 5 is stored in the 5' position between the seat and the floor and is not used in any way and is wasted.

Furthermore, the invention disclosed in Japanese Patent Application Laid-Open No. 58-97530 has a technique in which a pillow that is set in a concave portion of the base of a seat back of a rear seat is set at the base of the seat back via a hinge, but when the pillow is not used as a pillow, the pillow is placed between the pillow and the floor. There was an inconvenience that it could not be stored in the

The purpose of this invention is to solve the technical problem of the seatback lower and pillow when the seatback of an automobile based on the above-mentioned prior art is folded down to be fully flat. In addition to making full use of the advantages of the seatback, when the seatback is made fully flat, the seatback can be stored between the seatback and the floor or used effectively as a pillow, thereby improving the use of equipment technology in the automobile industry. The purpose is to provide an excellent vehicle seat that will benefit the field.

<Means for Solving the Problems> In accordance with the above-mentioned purpose, the structure of this invention, which is summarized in the scope of the above-mentioned utility model registration claims, is to solve the above-mentioned problems. When the seatbacks of the front seats and rear seats are tilted backwards, one hinge plate is fixed in a storage recess that can be received at the rear end as the seat cushion of the rear seat moves backward, and on the other hand, it can be moved away from the recess. A vehicle seat having a second hinge plate to which an attached seat back lower is fixed and pivotally connected to the one hinge plate via a hinge pin, wherein a link hinge pin connecting the one and other hinge plates is provided. A hinge part is formed at two points separated from each other, one end of the hinge part is pivotally supported by the other hinge plate, the other end is pivotally supported by one hinge plate, and the pivot parts of the hinge pin are formed at a distance from each other. Therefore, when the seat back of the rear seat is in a backward tilted position, the seat back lower can be pivoted and stored below the seat cushion which is swingable around the hinge part of the link hinge pin, or it can be pivoted and installed above the seat back. This is a vehicle seat that can be moved freely.

<Function> The hinge portion of one of the hinge plates fixed to the recess of the seat back is curled into a single curl, and the hinge portion is separated from the hinge portion by inserting the rear end side of the link hinge pin formed at both ends. In addition, the other hinge plate is fixed to the seatback lower provided opposite to the recessed portion, and the tip side of the link hinge pin is inserted into the hinge portion and pivotally supported, and in this way, the seat hinge is engaged. A seat bag lower is attached to a recessed portion at the base end of the seat bag, and
By separating the one and the other hinge plates and connecting them, when the seat bag is in the normal state in the upright position, the seat bag lower can be stored and set in the recess at the base end of the seat bag to perform the lumbar support function as in the conventional case. Furthermore, when tilting the seat back backwards to make it fully flat, as the seat back is tilted backwards,
By extending the seat back lower forward and pivoting it forward from the release of the hook, the other hinge plate, which is pivotally supported via the hinge portion at the tip of the link hinge pin, is moved together with the seat back lower to the lower front side of the lower end of the seat back. The upper end of the seat cushion of the rear seat is placed and set in the recessed part of the seat back to form a fully flat seat. The ring hinge pin on which the Croix is fixed and pivoted by the other hinge plate is displaced backwards, and the hinge part pivoted on the rear end of one hinge plate fixed in the recess of the seat back is rotated backwards to stand up on the recess. Then, by placing the seat bag lower along with the other hinge plate toward the surface of the seat bag, a pillow is formed on the upper surface of the base of the fully flat seat bag, so that a sufficient relaxing posture can be obtained. The measures were taken.

<Embodiment> Next, one embodiment of this invention will be described below based on the drawings from FIG. 5 onwards. Note that the same reference numerals are used to describe the same parts as in FIGS. 1 to 4.

The illustrated embodiment is an embodiment applied to the rear seat of a van-type automobile, and the structure of the seat hinge 6' shown in FIG. A seat back lower 5' having a lumbar support function etc. is attached to the recess 4 at the lower end of the seat back 2 so as to be freely pivotable, and seat hinges 6', 6' are arranged in the width direction of the seat back 2 as in the embodiment shown in FIG. One hinge plate 8', shown in FIG. 7, faces forward and backward with respect to the recess 4, and has a hook 11 in front of it, and a curled hinge part in the rear. 14', 14' are formed on the left and right, and a presser hook 1 for the recess 4 is provided between them.
7 is bent, and a bolt hole 7 is formed between the presser hook 17 and the hook 11.

The other hinge plate 10', which is L-shaped in side view, is provided on the back surface of the seat back lower 5 at a position corresponding to one hinge plate 8', and a pair of curl-shaped hinge parts 14 are provided at the base end of the hinge plate 10'. ,1
4 are formed on the left and right sides, and a presser hook 18 for the seat back lower 5 is bent and formed at the tip, and a bolt hole for the seat back lower 5 is formed between the hook 18 and the hinges 14, 14. A hook 11 of the one hinge plate 8' is formed between the bolt hole 9 and the presser hook 18.
A hook 12 for engaging and fixing is formed.

Between both hinge plates 8' and 10' is an Ω-shaped link hinge pin 15' as shown in FIG.
is provided, and at its front end, pin portions 15, 15 are integrally formed by bending linearly to both sides, and at its rear end, a pin portion 15'' is formed in the shape of a bridge.

When assembling the seat hinge 6', as shown in FIG.
A bridge-like pin part 1 at the rear of the link hinge pin 15' is attached to the curl-like hinge parts 14', 14'.
5'', and the curled hinge portions 14, 14 of the other hinge plate 10' are inserted through the pair of pin portions 15, 15 bent on both sides of the proximal end thereof to be pivotally supported.

The seat hinge 6' is attached to the recess 4 at the lower end of the seat back 2 and the back surface of the seat back lower 5 by attaching bolts to the bolt holes 7 of one hinge plate 8', as shown in FIG. 1
9 is inserted into the frame (not shown) of the recess 4 of the seat bag 2 and fixed by screwing, and the bolt 19 is inserted into the bolt hole 9 of the other hinge plate 10' to attach the frame (not shown) of the seat back lower 5. Screw it on and secure it in the same way.

In the above configuration, when the seat is to be made fully flat, the rear seat back 2 is tilted rearward into the flat position 2' and the seat back 2 is
In the recess 4 at the lower end of the seat back lower 5'
When you push forward and downward, one hinge plate 8'
and the hook 11,1 of the other hinge plate 10'
2 is removed, and the other hinge plate 10' is attached to the pin portions 15, 15 at the tips of the link hinge pins 15'.
, and the curled hinge portions 14, 14, as shown in FIG. 11, the seat bag 2 is turned to the left side in the figure, that is, the front end of the seat bag 2 is turned diagonally downward.

In this case, the forward tilting force applied to the link hinge pin 15' is applied to the recess 4 of the seat back 2.
The initial set posture is maintained as shown in FIGS. 11 and 12.

Therefore, as in the prior art described above, the seat cushion 3 connected to the rear seat 1 is displaced via a well-known displacement device, and the rear end is set on the recess 4 of the seat back 2 to take the position shown in FIG. 12 3'. , the seat back 16 of the front seat is tilted flat to bring all the seats into a fully flat state.

Therefore, in this fully flat state, the seat back lower 5 of the seat back 2 is at 5' in FIG.
It will be stored between it and the floor at this location.

Therefore, the occupant should take a resting position as appropriate, but there are various positions when the occupant takes a resting position on a seat with a flat position, and in some cases, as mentioned above, it is desirable to have a pillow. There are cases.

Therefore, in such a case, the 13th, 1st
4 and 15, first, as shown in FIG. 3, the seat back 2 is tilted rearward to a flat position 2', and the seat back lower 5 is once moved forward, i.e., in the same manner as described above. Turn to the left side in the figure to position 5', remove the hooks 11 and 12 that were fitted between the other hinge plate 9' and the other hinge plate 8', and from that position, move to the right side in the figure. When moved upward in the turning direction, link hinge pin 1
5' is turned backward, that is, to the right in the figure, by the hinge action of the pin portion 15'' and the curled hinge portions 14', 14' of one hinge plate 8', and is brought into a substantially vertical position above the concave portion 4. Then, the pin portion 15 at the tip of the link hinge pin 15',
15 and the other hinge plate 10', and the curled hinge portions 14, 14 rotate the other hinge plate 10' to the right in the drawing, that is, to the rear, so that the seat back lower 5 is rotated. The pillow 5'' is set on the upper surface of the seat bag 2' which assumes the 5'' position shown in FIG. 14 and is in a flat position.

Therefore, as shown in FIG. 15, the occupant
You can take a break in a comfortable position.

In this case, it goes without saying that the seat cushion 3' is set in the recess 4 of the seat bag 2' in the same manner as described above.

The seat back 16' of the front seat is in a flat position relative to the seat cushion 3'.

It goes without saying that the embodiment of this invention is not limited to the above-mentioned embodiments; for example, the seat back lower may be of a closed type or an air action type, and the recess may be the same as the seat back. Various embodiments can be adopted, such as a separate plate made of an appropriate material.

Furthermore, the seat hinge interposed between the seat bag and the seat cushion in this invention can be applied not only to van-type vehicles but also to hatchback-type vehicles.

<Effects of the invention> As described above, according to this invention, basically, when tilting a vehicle seat back to make it fully flat, a seat back roller provided in a recess formed at the base end of the seat back is used to raise the tip of the seat back. The seat can be swiveled and retracted to the front lower side of the seat, allowing all seats to be fully flat, allowing the occupants to take a free rest position, and ensuring that the lower part of the seat can be retracted between the seat and the floor. Not only can this effect be achieved, but the seat bag lower can be set upwardly on the top surface of the fully flat seat bag as needed to serve as a pillow. The excellent effect of being able to take a resting position is achieved.

In addition, there is no need to carry in and store a pillow that is desirable for taking such a posture as a special mat, and the seat back floor, which has a lumbar support function, can also be used as a pillow, resulting in multifunctionality. is also played.

The seat back lower, which serves as the pillow, can be set in the recess of the seat back lower during normal driving to perform functions such as lumbar support.

Thus, the seat hinge interposed between the seat back recess and the recess at the lower end of the seat back into which it is set is connected to the pin portion on the rear end side of one link hinge pin, and the hinge portion of one hinge plate relative to the recess. The hinge can be made into a double type hinge by pivoting the hinge plate and pivoting the hinge part at the tip of the other hinge plate fixed to the seatback lower on the tip side. Therefore, the seat back lower can be set to rotate diagonally downward in front of the tip of the seat back at the top, and even when it is turned as a pillow against the top surface of the seat back, the turning radius including the link hinge pin can be increased. Therefore, the recess formed at the lower end of the seat back can be made large, and the seat back lower set in this can also be made large, allowing the lumbar support function to work even more, as well as being large enough to be used as a pillow. The excellent effect of being able to design the system and having the flexibility to incorporate the flexibility into the design is achieved.

In addition, when setting a seat back lower between the seat cushion and the floor diagonally below the front of the seat cushion as in the conventional system, for example, by setting the rear of the front seat in a concave shape, all seats can be made fully flat. There are some benefits that do not change the effect in any way.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the general state of the seat back and the seat back lower set in the standing position, Fig. 2 is a perspective view of the seat back lower folded forward from the recess when the seat back is in the tilted state, and Fig. 3 is Perspective view of a seat hinge based on the prior art, No. 4
The figure is a schematic full-flat side view of a seat based on the prior art, Figure 5 and the following are explanatory diagrams of one embodiment of this invention, Figure 5 is a perspective view of one hinge plate with respect to the seat back lower, and Figure 6 is a perspective view of the link hinge pin, FIG. 7 is a perspective view of the other hinge plate set in the recess of the seat back, FIG. 8 is a structural perspective view of the seat hinge, and FIG. 9 is a view of the recess of the seat back via the seat hinge. FIG. 10 is a schematic side view of the seat back lower in the set state, FIG. 10 is a front perspective view of the seat back lower with respect to the recess when the seat back is in a tilted state, FIG. 11 is a schematic side view thereof, and FIG. 12 is a schematic side view of all seats in full flat state. , FIG. 13 is a perspective view of the seat back lower set in the pillow state with respect to the recess when the seat back is in the tilted state, FIG. 14 is a schematic side view thereof, and FIG. 15 is a schematic side view illustrating the pillow set with all seats in the fully flat state. 1... Rear seat, 2, 2'... Seat back,
16...front seat, 3...seat cushion, 4...recess, 8'...one hinge plate,
5, 5'... Seat back lower, 15... Hinge pin, 10'... Other hinge plate, 15'...
...Link hinge pin, 6'...Seat hinge.

Claims (1)

[Scope of utility model registration request] A storage recess formed at the base end of the seat back of a rear seat for a vehicle, on which the rear end of the seat cushion of the rear seat can be placed when the seat backs of the front seat and the rear seat are tilted backward; and a storage recess fixed within the storage recess. In a vehicle seat having one hinge plate and the other hinge plate fixed to a seat back lower that is releasably attached to the recess and pivotally connected to the one hinge plate via a hinge pin, and a link hinge pin connecting the other hinge plate is pivotally supported by the other hinge plate at one end thereof, and pivotally supported by the one hinge plate at the other end thereof, and the two pivot parts are spaced apart from each other. and, when the seat back of the rear seat is in a rearward tilted position, the seat back lower can be pivoted to be stored below the seat cushion of the rear seat via the link hinge pin, and can be pivoted to be installed above the seat back. A vehicle seat featuring: