JP5729675B2 - Seat belt buckle housing structure - Google Patents

Description

The present invention
A buckle accommodation hole is formed in the seat cushion,
The present invention relates to a seat belt buckle housing structure in which a seat belt buckle fixed to a floor-side fixing portion is housed in the buckle housing hole.

In the seat belt buckle housing structure, the seat belt buckle housed in the buckle housing hole may come into contact with the occupant and give a foreign object feeling. For this purpose, as shown in FIG. 9 (FIG. 9 is a view corresponding to the AA cross section of FIG. 4 of the present invention), the seat belt buckle 10 can swing around the horizontal axis O on the lower end side. The seat belt buckle 10 can be swung to the seat front side Fr and retracted into the buckle accommodation hole H when the passenger feels a foreign object. 9, reference numeral 2 denotes a seat cushion, 2B denotes a rear end portion of the seat cushion 2, and 11 denotes a bracket for fixing the seat belt buckle 10 to the floor 5.
However, according to this means, as shown in FIG. 10 (FIG. 10 corresponds to the BB cross section of FIG. 4 of the present invention), the seat belt buckle 10 swings to the seat front side Fr. When retracted into the buckle accommodation hole H, a gap S is formed between the seat belt buckle 10 and the inner side surface H1 (inner peripheral part) of the buckle accommodation hole H in the seat width direction, and small items such as coins are placed in the gap S. It sometimes dropped from the buckle housing hole H to the lower side of the seat cushion 2.
Therefore, as disclosed in Patent Document 1, the outer peripheral portion of the bag-shaped buckle storage portion that stores the seat belt buckle is sewn to the skin material of the seat cushion, and the buckle insertion hole is formed in the central portion of the buckle storage portion. The seat belt buckle was inserted into the buckle insertion hole.

JP 2010-64639 A

In general, in the process of assembling the seat belt buckle, the seat belt buckle is assembled to the floor before the seat cushion, and the seat belt buckle is inserted into the buckle receiving hole from below as the seat cushion is placed on the floor. ing.
According to the structure described in Patent Document 1, since the seat belt buckle is inserted through the buckle insertion hole at the center of the buckle storage portion, it is difficult to insert the seat belt buckle into the buckle insertion hole in the assembling process.
When the buckle insertion hole is enlarged so that the seat belt buckle is smoothly inserted into the buckle insertion hole, small items such as coins fall through the buckle insertion hole and below the seat cushion through the buckle accommodation hole.
That is, in the conventional structure, it has been difficult to achieve both assembling workability and prevention of dropping of articles from the buckle accommodation hole.
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its purpose is to accommodate a seat belt buckle that can be manufactured without deteriorating assembly workability, so that an article can be prevented from dropping from the buckle accommodation hole. In providing the structure.

The feature of the present invention is that
A buckle accommodation hole is formed in the seat cushion,
A seat belt buckle housing structure in which a seat belt buckle fixed to a fixed portion on the floor side is housed in the buckle housing hole,
A flexible member that closes the gap between the inner periphery of the buckle housing hole and the seat belt buckle is fixed to the skin material of the seat cushion,
It said flexible member is abutted to the seat belt buckle is formed in a loop shape in the longitudinal section,
The said flexible member exists in the point which swells diagonally downward so that it may be located below toward the inward side of the said buckle accommodation hole . (Claim 1)

According to this configuration, even when the seat belt buckle is pivoted and rotated forward of the vehicle around the horizontal axis on the lower end side and retracted into the buckle accommodation hole, the inner periphery of the buckle accommodation hole A gap between the seat belt buckle and the seat belt buckle can be closed with a flexible member, and small items such as coins can be prevented from falling from the buckle receiving hole to the lower side of the seat cushion through the gap.
In addition, since the flexible member is formed in a loop shape in a longitudinal section and abuts on the seat belt buckle, the loop-shaped flexible member can be flexibly bent, and the flexible member is formed of the seat belt buckle. Inhibiting rotation can be prevented.
In the assembly process, the seat belt buckle is assembled to the floor before the seat cushion, and the seat belt buckle is inserted into the buckle accommodation hole from below as the seat cushion is placed on the floor from above. Thus, the loop-shaped flexible member can be brought into contact with the seat belt buckle.
In the conventional structure in which the seat belt buckle is inserted into the buckle insertion hole of the bag-like buckle storage part in this assembling process, if the buckle insertion hole is enlarged, small items such as coins pass through the buckle insertion hole and the seat cushion from the buckle accommodation hole. The buckle insertion hole cannot be set large because it falls downward, and therefore there is a problem that it is difficult to insert the seat belt buckle into the buckle insertion hole.
On the other hand, according to the above configuration of the present invention, the bag-shaped buckle storage portion is not provided, and the seat belt buckle does not have to be inserted into the buckle insertion hole, so that the above-described problem does not occur. Therefore, the loop-shaped flexible member can be brought into contact with the seat belt buckle as described above in the assembling process, and the deterioration of the assembling workability can be suppressed.
Further, the flexible member can be made difficult to see when the seat belt buckle is used, and the appearance can be kept good. (Claim 1)

In the present invention,
If the flexible member is a carpet, the carpet can be flexibly adapted to the movement of the seat belt buckle due to a certain degree of flexibility of the carpet, and the carpet also has a certain degree of elasticity. A gap between the inner peripheral portion and the seat belt buckle can be sufficiently filled. (Claim 2 )

In the present invention,
When the flexible member is detachably fixed to the skin material of the seat cushion via the surface fastener, the flexible member can be easily removed from the skin material even after the seat belt buckle is accommodated in the buckle accommodation hole. Can be removed. Thereby, the attachment position of a flexible member can be changed and the position of the loop part of a flexible member can be finely adjusted. As a result, it is possible to more reliably prevent the flexible member from inhibiting the rotation of the seat belt buckle. (Claim 3 )

According to the present invention,
It was possible to provide a seat belt buckle housing structure capable of producing a structure capable of preventing the article from falling from the buckle housing hole without reducing the assembling workability.

Rear seat perspective view Perspective view of seat cushion Longitudinal side view of rear seat Perspective view of seat belt buckle support structure AA sectional view of FIG. BB sectional view of FIG. Sectional drawing of 1st another embodiment (sectional drawing corresponding to the BB cross section of FIG. 4) Sectional drawing of 2nd another embodiment (sectional drawing corresponding to the BB cross section of FIG. 4) The figure which shows a prior art (figure corresponding to the AA cross section of FIG. 4) The figure which shows a prior art (figure corresponding to the BB cross section of FIG. 4)

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows a rear seat 1 for a three-seater vehicle. The rear seat 1 includes a seat cushion 2 that supports the occupant's buttocks and thighs, and a seat back 3 that supports the upper body of the occupant. A headrest 4 that supports the occupant's head is connected to the upper end of the seat back 3. The rear seat 1 is provided with a three-point seat belt device in any of the left seat, the right seat, and the central seat.

  Further, a pair of first seat belt buckles 10 for fitting a pair of tongues of the seat belt for the central seat pulled out from the belt winding device fixed to the ceiling are disposed on both sides of the seat surface of the central seat, Second seat belt buckles 20 for left seats or right seats that fit the tongues of seat belts arranged on the left and right side walls are respectively arranged at the ends of the left and right seat surfaces near the vehicle center.

  The seat cushion 2 includes a seat frame, a seat cushion pad, and a skin material 52 (see FIG. 6) covering them. Then, as shown in FIG. 2, a rectangular buckle that is long in the longitudinal direction of the seat in the cross section is formed at the end of the seat cushion 2 near the vehicle center of the seat surface of the left and right seats of the rear end 2B. An accommodation hole H is formed. The rear end 2B of the seat cushion 2 is set to be thinner than the portion 2A other than the rear end (see FIG. 5).

  The buckle housing structure of the left buckle housing hole H and the buckle housing structure of the right buckle housing hole H are bilaterally symmetric. Hereinafter, the left buckle housing structure will be described. As shown in FIG. 3 to FIG. 6, the first seat belt for the central seat that is fixed to the first bracket 11 on the floor 5 side and is self-supporting in the front half of the buckle housing hole H (portion on the front side of the seat Fr). A buckle 10 is accommodated.

  As shown in FIG. 5, the first seat belt buckle 10 is configured to be rotatable around the horizontal axis O on the lower end portion side, and a part of the first seat belt buckle 10 (the rear of the seat among both corner portions of the upper end portion). The upper end portion of the side Rr) is configured to be switchable between a state in which it protrudes upward from the buckle accommodation hole H and a state in which the first seat belt buckle 10 is retracted into the buckle accommodation hole H. The lower end portion of the first seat belt buckle 10 is frictionally held by the holding portion at the upper end portion of the first bracket 11.

  According to this configuration, a part of the first seat belt buckle 10 (the upper end portion on the seat rear side Rr of both corner portions of the upper end portion) is set in a state of protruding upward from the buckle housing hole H, whereby the seat The belt tongue can be easily inserted into and engaged with the first seat back 10. In addition, by setting the first seat belt buckle 10 to be retracted into the buckle accommodation hole H, the first seat belt buckle 10 accommodated in the buckle accommodation hole H can be prevented from coming into contact with the occupant. It is possible to prevent the seat belt buckle 10 from giving a sense of foreign matter to the occupant.

  As shown in FIG. 4, the webbing 22 having one end fixed to the second bracket 21 on the floor 5 side is positioned on the seat rear side Rr side by side with the first seat belt buckle 10 in the longitudinal direction of the seat. (See FIGS. 3 to 6) The buckle accommodation hole H is inserted, and the base end portion of the second seat belt buckle 20 is connected to the other end portion of the webbing 22 so as to be positioned on the upper and outer sides of the buckle accommodation hole H.

  For example, in the structure in which the first seat belt buckle 10 and the second seat belt buckle 20 are arranged in the seat width direction, the width of the seat surface of the seat cushion 2 is shortened, but in the present embodiment, the first seat belt buckle 10 and the second seat belt buckle 10 Since the seat belt buckles 20 are arranged in the front-rear direction of the seat, the seat surface of the seat cushion 2 can be widened in the seat width direction.

  As described above, the first seat belt buckle 10 is accommodated in the buckle accommodation hole H, the second seat belt buckle 20 is fixed to the floor 5 via the webbing 22, and the webbing 22 is inserted into the buckle accommodation hole H. Therefore, interference between the seat belt tongue inserted into the first seat belt buckle 10 and the seat belt tongue inserted into the second seat belt buckle 20 can be avoided.

  As shown in FIG. 2, the first bracket 11 and the second bracket 21 are formed in an elongated vertical plate shape whose plate surfaces face the sheet width direction. Then, the bent mounting portions 12 and 23 at the lower end portions of the first bracket 11 and the second bracket 21 are overlapped with each other and fixed together with the bolt B on the floor 5 to fix the first bracket 11 and the second bracket. 21 stands up from the floor 5.

  The first bracket 11 includes an attachment piece 13 having an L-shaped cross section that constitutes the attachment portion 12, and a first bracket body portion 14 that is long in the vertical direction and has a lower end portion fixed to the rising portion of the attachment piece 13. The second bracket 21 is located on the front side Fr of the seat. The 2nd bracket 21 consists of a single metal plate, the lower end part is bent in L shape, and the L-shaped lower end part is comprised in the attachment part 23. FIG.

  A resin boot 30 is inserted into the webbing 22 and fixed by caulking, and the boot 30 is inserted into and fitted into the buckle receiving hole H. The boot 30 and the first seat belt buckle 10 pass through the buckle receiving hole H. It closes and prevents articles (for example, small articles such as coins) from entering the buckle housing hole H from above.

  As shown in FIG. 6, the gap between both inner side surfaces H <b> 1 (corresponding to the inner peripheral portion) of the buckle accommodation hole H in the seat width direction and the first seat belt buckle 10, and the inner side surface H <b> 1 of the buckle accommodation hole H. A carpet 50 as a flexible member that closes the gap between the boot 30 and the boot 30 is sewn to the skin material 52 on both inner side surfaces H1 along both inner side surfaces H1 of the buckle receiving hole H in the sheet width direction. . Reference numeral L indicates a sewing line.

  The carpet 50 is formed in a loop shape in the longitudinal cross section and swells obliquely downward so as to be located inward in the seat width direction of the buckle receiving hole H, and comes into contact with the lower end portion of the first seat belt buckle 10. ing. In the longitudinal section, the loop portion 54 of the carpet 50 is narrowed toward the diagonally downward direction.

  The carpet 50 is configured by repeatedly piercing a needle with a return shape (needles) into a lump of resin fibers such as PP called a so-called needle punch carpet, and is formed in a flat shape by press working or the like. The flexible member is not limited to such a carpet, but is made of a material that swells with a certain degree of elasticity when it is formed into a loop shape, and the skin material 52 on the inner surface H1 of the buckle receiving hole H. As long as it can be sewn on, a member other than the carpet may be used.

  The sewing of the carpet 50 to the skin material 52 will be described. As shown in FIG. 6, one end portion in the width direction of the first carpet material 51 having a rectangular shape that is long in the longitudinal direction (sheet longitudinal direction) of the buckle accommodation hole H. 51A is sewn on the lower surface of the skin material 52 around the buckle accommodation hole H.

  Further, the other end 51B in the width direction of the first carpet material 51 is sandwiched between a pair of second carpet materials 55 having a rectangular shape that is long in the longitudinal direction of the buckle housing hole H. It is sewn on the upper and lower portions of the side skin material 52.

  The upper end portion of one second carpet material 55 is folded back to the upper end portion side of the other second carpet material 55, and the upper end portion of the other second carpet material 55 is folded back to the upper end portion side of the one second carpet material 55. Thus, the pair of first folded portions 53 are sewn together. The pair of first folded portions 53 protrudes above the buckle accommodation hole H.

  Moreover, the skin material 52 which forms the inner side surface H1 of the buckle accommodation hole H is divided | segmented up and down, the edge part of the lower skin material 52 is return | folded by the edge part side of the upper skin material 52, and the 2nd The folded portion 59 is overlapped and sewn on the end portion of the upper skin material 52 from the inner side of the buckle accommodation hole H. As a result, the upper end portion of the inner side surface H1 of the buckle receiving hole H bulges inward in the sheet width direction of the buckle receiving hole H, and the first folded portion 53 that overlaps the second folded portion 59 is buckled toward the upper side. The housing hole H is inclined so as to be located on the inner side in the sheet width direction.

  As a result, the first folded portion 53 can be reliably brought into contact with the upper end portion of the first seat belt buckle 10, and both the inner side surfaces H1 (corresponding to the inner peripheral portion) of the buckle accommodation hole H in the seat width direction and the first The gap between the seat belt buckle 10 and the gap between the inner surface H1 of the buckle housing hole H and the boot 30 can be reliably closed.

  The pair of left and right carpets 50 are formed symmetrically with respect to the center of the buckle accommodation hole H in the sheet width direction.

  According to the above structure, even when the first seat belt buckle 10 is swung to the seat front side Fr around the horizontal axis O on the lower end side and retracted into the buckle accommodation hole H, the buckle accommodation is possible. A gap between the inner surface H1 of the hole H and the first seat belt buckle 10 can be closed by the carpet 50, and small items such as coins fall from the buckle accommodation hole H to below the seat cushion 2 through the gap. This can be prevented.

  In addition, since the carpet 50 is formed in a loop shape in the longitudinal section and is in contact with the first seat belt buckle 10, the loop carpet 50 can be flexibly bent, and the carpet 50 can be bent by the first seat belt buckle. Inhibiting the rotation of 10 can be prevented.

  In the assembly process, the first seat belt buckle 10 is assembled to the floor 5 prior to the seat cushion 2, and the first seat belt buckle 10 is buckled as the seat cushion 2 is placed on the floor 5 from above. By inserting into the accommodation hole H from below, the looped carpet 50 can be smoothly brought into contact with the first seat belt buckle 10.

In the conventional structure in which the first seat belt buckle 10 is inserted into the buckle insertion hole of the bag-like buckle storage portion in this assembling process, if the buckle insertion hole is enlarged, small items such as coins pass through the buckle insertion hole and the buckle accommodation hole. The buckle insertion hole cannot be set large because it falls from the seat cushion to the lower side of the seat cushion. For this reason, there is a problem that it is difficult to insert the first seat belt buckle 10 into the buckle insertion hole.
On the other hand, according to the above configuration of the present invention, the bag-like buckle storage portion is not provided, and the first seat belt buckle 10 does not have to be inserted into the buckle insertion hole, so that there is no such inconvenience. Therefore, in the assembling process, the loop-shaped flexible member can be brought into contact with the first seat belt buckle 10 as described above, and a decrease in assembling workability can be suppressed.

  Further, since the carpet 50 bulges obliquely downward so as to be located on the inner side of the buckle accommodation hole H, the carpet 50 can be made difficult to see when the first seat belt buckle 10 is used. Can be kept good.

  The carpet 50 can flexibly cope with the movement of the first seat belt buckle 10 due to a certain degree of flexibility of the carpet, and the carpet 50 is also provided with a certain degree of elasticity. And the first seat belt buckle 10 can be sufficiently filled.

[Another embodiment]
(1) As shown in FIG. 7, the carpet 50 may be detachably fixed to the skin material 52 of the seat cushion via a hook-and-loop fastener 56. In this structure, male fasteners 56A are sewn to both ends in the width direction of the rectangular carpet 50 that is long in the longitudinal direction (sheet longitudinal direction) of the buckle accommodation hole H, and the skin material 52 around the buckle accommodation hole H is sewn. A female surface fastener 56B is sewn to the lower surface of the inner surface H1 and the skin material 52 of the inner surface H1 of the buckle accommodation hole H.
According to this configuration, even after the first seat belt buckle 10 is accommodated in the buckle accommodation hole H, the carpet 50 can be easily detached from the skin material 52, whereby the attachment position of the carpet 50 can be changed and the carpet 50 can be changed. The positions of the 50 loop portions 54 can be finely adjusted. As a result, it is possible to more reliably prevent the carpet 50 from obstructing the rotation of the first seat belt buckle 10.

(2) As shown in FIG. 8, the end of the carpet 50 may be folded back to make the loop portion double. That is, one end portion 51A in the width direction of the first carpet material 51 having a rectangular shape that is long in the longitudinal direction (sheet longitudinal direction) of the buckle accommodation hole H is folded back to form the second loop portion 57. Both end portions of the loop portion 57 are sewn to the lower surface of the skin material 52 around the buckle accommodation hole H and the skin material 52 on the inner surface of the buckle accommodation hole H.
According to this configuration, the rigidity of the loop portion 54 can be increased without increasing the thickness of the carpet 50.

(3) The carpet 50 may be a structure in which only one of the inner side surfaces H1 of the buckle accommodation holes H in the seat width direction is sewn. In this case, the flexible member may be made of a material other than the carpet 50 that swells to sufficiently fill the gap.

(4) The flexible member may be made of a flexible material such as vinyl chloride instead of the carpet.

2 Seat cushion 5 Floor 10 Seat belt buckle (first seat belt buckle)
11 Fixed part on the floor side (first bracket)
50 Flexible member (carpet)
52 Skin material 56 Surface fastener H Buckle accommodation hole H1 Inner peripheral part of buckle accommodation hole (inner side surface of buckle accommodation hole in sheet width direction)

Claims (3)

A buckle accommodation hole is formed in the seat cushion,
A seat belt buckle housing structure in which a seat belt buckle fixed to a fixed portion on the floor side is housed in the buckle housing hole,
A flexible member that closes the gap between the inner periphery of the buckle housing hole and the seat belt buckle is fixed to the skin material of the seat cushion,
It said flexible member is abutted to the seat belt buckle is formed in a loop shape in the longitudinal section,
A seat belt buckle housing structure in which the flexible member bulges obliquely downward so as to be positioned downward toward the inner side of the buckle housing hole . The flexible member accommodates the structure of the seat belt buckle according to claim 1, wherein the carpet. The seat belt buckle accommodation structure according to claim 1 or 2, wherein the flexible member is detachably fixed to a skin material of the seat cushion via a hook-and-loop fastener.

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