JP2006315509A - Seat belt arrangement structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enlarge a cargo chamber and hold a seat belt buckle with good operability of a seat belt even if a seat cushion can independently move forward by connecting a seat cushion rear part and a seat back bottom part by a member provided with a holding part for holding a seat belt buckle member. <P>SOLUTION: This seat belt arrangement structure comprises a seat cushion 18 movably installed at a front part, and a seat back 19 reclinably installed approximately parallely above the seat cushion 18. The seat cushion 18 is installed movably forward independently from the seat back 19, and a connecting member 30 for connecting the rear part of the seat cushion 18 and the bottom part of the seat back 19 is provided. A holding part 36 for holding the seat belt buckle member 35 installed on the other end of the seat belt 34 fixed to a vehicle body 4 on one end is provided to the connecting member 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicular seat belt arrangement structure including a seat cushion movably provided forward and a seat back provided so as to be able to fall substantially horizontally above the seat cushion.

  Conventionally, in a rear seat provided with a seat cushion and a seat back, the seat cushion is configured to be movable forward of the vehicle via a pair of links independently of the seat back, and the seat cushion seat moved forward is provided. On the surface, a vehicle seat device has been invented that is configured to move the seat back forward substantially horizontally with the reclining shaft as a fulcrum (see Patent Document 1).

  On the other hand, when the seat cushion and the seat back are set at the normal seating use position, a buckle for locking the shoulder belt side tongue is provided, and the buckle is stored in the recess at the lower part of the seat back at the seating use position. The buckle storage structure has already been invented (see Patent Document 2).

Therefore, when these conventional structures are combined, the seat back is held upright, and only the seat cushion can be moved forward to ensure a large luggage space and a passenger restraint buckle. In this case, when the seat cushion is moved forward, the buckle supported on the body side via the webbing falls on the floor, returns the seat cushion to the normal seating use position, and the seat belt. There was a problem that usability deteriorated when restraining the rear seat occupant.
JP 2004-359158 A JP-A-8-276822

  Therefore, the present invention provides a seat cushion that can be moved forward independently of the seat back, and connects the rear portion of the seat cushion and the lower portion of the seat back with a connecting member, and the seat at the other end of the seat belt is connected to the connecting member. Even with a seat structure in which the seat cushion can be moved independently forward by providing a holding part that holds the belt buckle member, the seat belt has good operability, and by providing a connecting member, the cargo space can be expanded. It is an object of the present invention to provide a vehicle seat belt arrangement structure capable of achieving both the holding of the seat belt buckle member.

  A seat belt arrangement structure according to the present invention includes a seat cushion provided movably forward and a seat back arrangement provided on a seat back provided substantially horizontally above the seat cushion. The seat cushion is provided so as to be able to move forward independently of the seat back, and a connecting member for connecting the rear portion of the seat cushion and the lower portion of the seat back is provided. A holding portion for holding a seat belt buckle member provided at the other end of the seat belt having one end fixed to the vehicle body is provided.

  According to the above configuration, when the seat cushion is moved forward independently of the seat back, the rear portion of the seat cushion and the lower portion of the seat back are connected by the connecting member. Both the upper surface and the upper surface of the connecting member can be used as a cargo space, and thus the cargo space can be enlarged.

  In addition, since the seat belt buckle member can be held by the holding portion provided on the connecting member, when the seat cushion is returned to the original position while preventing the seat belt buckle member from falling, an appropriate operation of the seat belt is performed. Sex can be secured.

In one embodiment of the present invention, the connecting member is a flexible member that covers a space between the rear portion of the seat cushion and the lower portion of the seat back.
According to the above configuration, the flexible member follows the movement of the seat cushion from the original position to the front position and the movement from the front position to the original position, so that the connecting member can be configured easily.

Incidentally, when the connecting member is formed of a non-flexible member such as a plate member, the structure becomes complicated.
In one embodiment of the present invention, the flexible member is a mat member or a net member.

According to the said structure, coexistence with simplification of a connection member and weight reduction can be achieved.
In one embodiment of the present invention, the holding portion is provided in a flexible member and is set to a through-hole through which the seat belt passes.

According to the above configuration, since the holding portion is set to the through hole, the seat belt buckle member can be held while having a simple structure.
In one embodiment of the present invention, the holding portion is configured to be able to conceal and hold the seat belt buckle member between the seat cushion and the seat back when the seat belt buckle member is not used.

  According to the above configuration, when the seat belt buckle member is not used, the holding portion hides the buckle member between the seat cushion and the seat back, so that the appearance when not in use is good and the luggage is mounted. But the buckle member doesn't get in the way.

In one embodiment of the present invention, when the seat cushion is in the seating use position, the flexible member is folded rearward from between the seat cushion and the seat back, and the seat belt buckle member is retracted rearward to hide the flexible member. To move up to.
According to the above configuration, the seat belt buckle member can be reliably moved when retracted while having a simple structure.

  According to the present invention, the seat cushion is provided so as to be movable forward independently of the seat back, and the rear portion of the seat cushion and the lower portion of the seat back are connected by the connecting member, and the seat at the other end of the seat belt is connected to the connecting member. Since the holding part that holds the belt buckle member is provided, even if the seat cushion has a seat structure that can be moved forward independently, the seat belt has good operability, and the connecting member is provided to expand the cargo compartment. And the holding of the seat belt buckle member can be achieved.

  Even if the seat cushion has a seat structure that can be moved forward independently, the seat belt is easy to operate, and the purpose is to achieve both the expansion of the luggage compartment and the holding of the seat belt buckle member. A seat cushion that is provided and a seat back that is provided so as to be able to fall substantially horizontally above the seat cushion, the seat cushion is provided so as to be movable forward independently of the seat back, and the seat A connecting member for connecting the rear portion of the cushion and the lower portion of the seat back is provided, and the connecting member is provided with a holding portion for holding a seat belt buckle member provided at the other end of the seat belt having one end fixed to the vehicle body. Realized by configuration.

An embodiment of the present invention will be described below in detail with reference to the drawings.
The drawings show the vehicle seat belt arrangement structure. First, the vehicle body structure will be described with reference to FIGS. 1, 2, and 3. FIG.
A kick-up floor part 3 that is one step higher than the floor panel 1 is connected to the rear part of the floor panel 1 via a kick-up part 2 that rises in a front-rear and rear-high state. A rear floor 4 extending substantially horizontally toward the rear is connected continuously, and a spare tire pan 5 is recessed in a substantially central portion of the rear floor 4 in the vehicle width direction.

  Side sill 6 including side sill inner, side sill outer, and side sill reinforcement, and having a side sill closed section extending in the front-rear direction of the vehicle is joined and fixed to the left and right side portions of floor panel 1 described above.

  A rear side frame 7 extending in the front-rear direction from the lower surface of the left and right sides of the rear floor 4 to the lower surface of the left and right sides of the kick-up portion 2 is provided. is doing.

  Further, a fuel tank 8 as a vehicle auxiliary machine is disposed in the vehicle outside space (lower space) of the kick-up portion 2 and the kick-up floor portion 3 described above, while the rear portion of the fuel tank 8 and the spare tire pan 5 are arranged. A rear cross member 9 that connects the left and right rear side frames 7 and 7 is disposed on the lower surface of the kick-up floor portion 3 so as to face the front portion of the kick-up floor portion 3 in the vehicle width direction. A closed section 10 extending in the vehicle width direction is formed between 3 and the rear cross member 9.

  Here, the side sill 6, the rear side frame 7, and the rear cross member 9 described above are vehicle body rigid members (strength members). In the figure, 11 is a front door opening, 12 is a rear door opening, and 13 is a center pillar.

Next, the sheet structure will be described with reference to FIGS. 1, 2, and 3.
A front seat 17 (a front seat comprising a driver's seat and a passenger's seat) having a seat cushion 14, a seat back 15, and a headrest 16 is disposed on the top of the floor panel 1, while a kick-up floor A rear seat 21 (rear seat) having a seat cushion 18, a seat back 19, and a headrest 20 is disposed on the upper portion of the portion 3. In this embodiment, the rear seat 21 is constructed as a bench seat type as shown in FIGS. 6 and 7, and a recess 18a is formed in the lower portion of the seat cushion 18.

  The lower end of the front portion of the seat cushion 18 in the rear seat 21 described above is rotated to the upper end portion of a pair of links 22 (only one is shown in the drawing) whose lower end is pivotally supported by the intermediate step portion of the kick-up portion 2. The seat cushion 18 is provided so as to be movable forward from a normal seating use position shown in FIG. 1 through a link 22 as shown in FIGS. The seat cushion 18 is configured to move to the front position shown in FIGS. 2 and 3 independently of the seat back 19.

  The seat back 19 in the above-described rear seat 21 is configured to be tiltable about a seat back rotation shaft 23 (reclining fulcrum) provided at the lower portion thereof, and as shown in FIG. 3, the seat is moved to the front position. The cushion 18 is provided so as to be able to fall substantially horizontally above the seat surface.

  When the seat cushion 18 is moved to the front position independently of the seat back 19 as shown in FIG. 2 from the normal state shown in FIG. 1, and the seat back 19 is held in the standing state, the seat back 15 of the front seat 17 , One luggage compartment 25 surrounded by the seat cushion 18 and the seat back 19 of the rear seat 21 and the roof portion 24, the seat back 19 of the rear seat 21, the rear floor 4, the rear gate 26, and the roof portion 24. Two cargo chambers 25, 27 can be formed with the other cargo chamber 27 thus formed.

  Further, as shown in FIG. 3 from the state shown in FIG. 2, when the seat back 19 is tilted forward with the seat back rotation shaft 23 as a fulcrum on the seat cushion 18 moved to the front position, the two cargo compartments A single cargo space expansion space 28 is formed in which 25 and 27 (see FIG. 2) communicate with each other in the front-rear direction.

  Next, the vehicle seat belt arrangement structure will be described with reference to FIGS.

  4 is an enlarged side view of the main part of FIG. 1, FIG. 5 is an enlarged side view of the main part of FIG. 2, FIG. 6 is a perspective view of FIG. 18 between the rear end portion of the seat surface as the rear portion and the bottom portion of the seat back 19 as the lower portion of the seat back 19 (between the rear end portion of the seat cushion 18 and the bottom portion of the seat back 19). A mat member 30 is provided as an example of a flexible member that connects the two.

  The mat member 30 covers between the rear portion of the seat cushion 18 and the lower portion of the seat back 19, and one end portion 30a of the mat member 30 is stitched to the bottom surface of the seat back 19 over the entire width in the vehicle width direction. The other end portion 30b of the mat member 30 is connected to the rear end portion of the seat cushion 18 over the entire width in the vehicle width direction by stitching means or the like.

  On the other hand, an anchor bracket 33 is fixed to the rear floor 4 using mounting members such as bolts 31 and nuts 32, and the lower end of the webbing 34 of the seat belt is fixed to the anchor bracket 33.

  Further, a seat belt buckle member 35 is provided at the upper end of the webbing 34 of the above-described seat belt, and a tongue on the shoulder belt side (specifically, between the shoulder belt and the lap belt in the three-point seat belt device) by the seat belt buckle member 35. The intermediate tongue member) is locked to restrain the rear seat occupant.

  Further, the mat member 30 has a through hole 36 through which the seat belt webbing 34 penetrates as a holding portion for holding the seat belt buckle member 35.

  FIG. 8 is a side view showing the main part of FIG. 4 further enlarged. The webbing 34 extending rearward (or downward) from the seat belt buckle member 35 is passed through the through-hole 36 and the rear surface ( The webbing 34 is bent into a substantially S shape immediately after the through-hole 36 to form an S-shaped portion 37 (bent portion).

  The S-shaped portion 37 includes a U-shaped free portion 37a that is not sewn to the mat member 30, and a U-shaped sewn portion 37b (joining fixing portion) that is firmly sewn to the mat member 30. The webbing 34 behind the stitched portion 37 b is fixed to the anchor bracket 33.

  Further, a biasing member 38 made of a belt-like rubber member or the like is provided between the vicinity of the one end 30a on the back surface of the mat member 30 and the surface portion of the S-shaped portion 37 facing the mat member 30 of the free portion 37a. ing.

  The urging member 38 is sewn or bonded (that is, joined) to the mat member 30 in a predetermined range L1 shown in FIG. 8, and is sewn or bonded (that is, joined) to the free portion 37a in the predetermined range L2 shown in FIG. An intermediate portion other than these ranges L1 and L2 is configured to expand and contract.

  That is, when the shoulder belt side tongue is inserted and locked to the seat belt buckle member 35 when not in use, which is located at the concealment position between the seat cushion 18 and the seat back 19 as shown in FIG. When the seat belt buckle member 35 is pulled forward, the seat belt buckle member 35 is pulled forward by a distance corresponding to the length of the U-shaped free portion 37a of the S-shaped portion 37, and the state shown in FIG. The shoulder belt side tongue insertion operation (seat belt mounting operation) with respect to the seat belt buckle member 35 can be facilitated.

  When the restraint of the rear seat occupant by the seat belt is released, if the tongue on the shoulder belt side is detached from the seat belt buckle member 35, the seat belt buckle member 35 pulled out in the front of FIG. Is returned to the concealment position (original position) shown in FIG.

  When the seat cushion 18 is moved to the front position independently of the seat back 19 via the link 22 in the normally seated rear seat 21 shown in FIGS. 4 and 6, the mat is shown in FIGS. The member 30 is pulled forward following the forward movement of the seat cushion 18, and as shown in FIG. 2, a load placement surface that is continuous with the seat surface of the seat cushion 18 is formed. A wide luggage room 25 can be formed above and above the mat member 30 serving as a luggage placement surface.

  Conversely, when the seat cushion 18 at the front position shown in FIGS. 5 and 7 is moved back to the seating use position via the link 22, the mat member 30 of the seat cushion 18 is moved as shown in FIGS. 4 and 6. Following the rearward movement, it is flexibly displaced, folded back from between the seat cushion 18 and the seat back 19, and as shown in FIG. 4, the seat belt buckle member 35 is retracted from the position of FIG. It is moved to a position.

  10 and 11 show another embodiment of the vehicle seat belt arrangement structure. In the previous embodiment shown in FIGS. 1 to 9, one end 30a of the mat member 30 as a flexible member is seat-backed. In this embodiment shown in FIGS. 10 and 11, one end portion 30a of the mat member 30 is connected to the lower end portion on the back side of the seat back 19 by a sewing means or the like. .

  Even if configured in this manner, the other configurations, functions, and effects are almost the same as those of the embodiment shown in FIGS. 1 to 9, and therefore, in FIGS. The detailed description is omitted.

  As described above, the vehicle seat belt arrangement structure of the above embodiment includes the seat cushion 18 provided to be movable forward and the seat back 19 provided to be able to fall substantially horizontally above the seat cushion 18. In the vehicle seat belt arrangement structure provided, the seat cushion 18 is provided movably forward independently of the seat back 19, and connects between the rear portion of the seat cushion 18 and the lower portion of the seat back 19. A mat member 30 as a connecting member is provided, and a seat belt buckle member 35 provided at the other end of a seat belt (see webbing 34) having one end fixed to the vehicle body (see rear floor 4). Is provided with a holding portion (see through-hole 36).

  According to this configuration, when the seat cushion 18 is moved forward independently of the seat back 19 (see FIGS. 2, 5, and 7), the rear portion of the seat cushion 18 and the lower portion of the seat back 19 are connected. Since the mat members 30 are connected to each other, the upper surface of the seat cushion 18 moved forward and the upper surface of the mat member 30 can be used as a cargo space, thereby expanding the cargo space 25. Can be planned.

  In addition, since the seat belt buckle member 35 can be held by the holding portion (through hole 36) provided in the connecting member (mat member 30), the seat belt buckle member 35 is prevented from falling, and the seat cushion 18 is When returned to the original position shown in FIGS. 1, 4, and 6, appropriate operability of the seat belt can be ensured.

The connecting member (mat member 30) is set as a flexible member that covers a space between the rear portion of the seat cushion 18 and the lower portion of the seat back 19.
According to this configuration, the flexible member (see the mat member 30) moves from the original position (see FIGS. 1, 4, and 6) of the seat cushion 18 to the front position (see FIGS. 2, 5, and 7). Since the movement from the front position to the original position is followed, the connecting member can be configured easily.

Incidentally, when the connecting member is formed of a non-flexible member such as a plate member, the structure becomes complicated.
Further, the flexible member is set to the mat member 30.
According to this configuration, it is possible to achieve both simplification and weight reduction of the connecting member. In the above embodiment, the mat member 30 is exemplified as the flexible member. However, the mat member 30 may be a net member instead of the mat member 30, or may be a band member equivalent to webbing.

  In addition, the holding portion is provided in a through-hole 36 provided in a flexible member (mat member 30) and through which the seat belt (webbing 34) passes.

According to this configuration, since the holding portion is set to the through hole 36, the seat belt buckle member 35 can be held with a simple structure.
The holding portion (see the through hole 36) is configured to be able to conceal and hold the seat belt buckle member 35 between the seat cushion 18 and the seat back 19 when the seat belt buckle member 35 is not used. It is.

  According to this configuration, when the seat belt buckle member 35 is not used, the holding portion (through hole 36) conceals the buckle member 35 between the seat cushion 18 and the seat back 19, so that the appearance when not in use is provided. The buckle member 35 does not get in the way even when a load is loaded.

Further, the flexible member (mat member 30) is folded backward from between the seat cushion 18 and the seat back 19 when the seat cushion 18 is in the seating use position (see FIGS. 1, 4, and 6). Thus, the seat belt buckle member 35 is retracted and moved to the concealment position.
According to this configuration, the seat belt buckle member 35 can be reliably moved during storage while having a simple structure.

  As shown in FIGS. 8 and 9, a bent portion (see S-shaped portion 37) is formed in the intermediate portion of the seat belt (see webbing 34), and one of the bent portions is pulled out and stored in a free state. When the seat belt is attached, the seat belt buckle member 35 is made operable as shown in FIG. 9 when the other bent portion (see the stitching portion 37b) is joined and fixed to the mat member 30. Since the seat belt buckle member 35 can be retracted to the concealed position shown in FIG. 8 when the seat belt is not worn, the seat belt wearing operability can be secured while maintaining a simple structure. It is possible to achieve compatibility with

In the correspondence between the configuration of the present invention and the above-described embodiment,
The connecting member (flexible member) of the present invention corresponds to the mat member 30 of the embodiment,
Similarly,
The seat belt corresponds to the webbing 34,
The vehicle body that fixes one end of the seat belt corresponds to the rear floor 4,
The holding part corresponds to the through-opening 36,
The present invention is not limited to the configuration of the above-described embodiment.

  For example, in the above embodiment, the bench seat type rear seat 21 is applied with the seat belt arrangement structure of the present embodiment. However, the rear seat 21 may be a separate seat type. Although the rear seat 21 is the second row seat, the seat belt arrangement structure of the present embodiment may be adopted for the third row rear seat.

The side view of the vehicle provided with the seatbelt arrangement structure for vehicles of this invention Side view when seat cushion moves forward Side view with seat back lying down 1 is an enlarged side view of the main part of FIG. 2 is an enlarged side view of the main part of FIG. Perspective view of the rear seat in the normal seating state Perspective view of rear seat when seat cushion moves forward 4 is an enlarged side view of the main part of FIG. Enlarged side view showing the front drawer state of the seat belt buckle member An enlarged side view showing another embodiment of a vehicle seat belt arrangement structure Enlarged side view when the seat cushion moves forward

Explanation of symbols

4 ... Rear floor (body)
18 ... Seat cushion 19 ... Seat back 30 ... Mat member (connecting member, flexible member)
34 ... Webbing (seat belt)
35 ... Seat belt buckle member 36 ... Through hole (holding part)

Claims (6)

A vehicle seat belt arrangement structure comprising: a seat cushion provided movably forward; and a seat back provided substantially horizontally above the seat cushion.
The seat cushion is provided so as to be movable forward independently of the seat back,
A connecting member for connecting the rear portion of the seat cushion and the lower portion of the seat back is provided,
A vehicle seat belt arrangement structure in which the connecting member is provided with a holding portion for holding a seat belt buckle member provided at the other end of the seat belt whose one end is fixed to the vehicle body. 2. The vehicle seat belt arrangement structure according to claim 1, wherein the connecting member is a flexible member that covers a space between a rear portion of the seat cushion and a lower portion of the seat back. 3. The vehicle seat belt arrangement structure according to claim 2, wherein the flexible member is a mat member or a net member. The vehicle seat belt arrangement structure according to claim 2 or 3, wherein the holding portion is provided in a flexible member and set to a through-hole through which the seat belt passes. The vehicle according to any one of claims 1 to 4, wherein the holding portion is configured to be able to conceal and hold the seat belt buckle member between the seat cushion and the seat back when the seat belt buckle member is not used. Seat belt arrangement structure. 6. The vehicle according to claim 5, wherein when the seat cushion is in the seating use position, the flexible member is folded rearward from between the seat cushion and the seat back, and the seat belt buckle member is retracted and moved to the concealment position. Seat belt arrangement structure.

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