JP2004066967A - Seat belt support structure for vehicle interior member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To preferably avoid damage/abrasion of a surface and a side end edge of a seat belt. <P>SOLUTION: A belt support plate 50 becoming bendable to a back side of a lower garnish 30B is integrally provided on an end edge part of the lower garnish 30B in a pillar garnish in the state that it is outwardly extended. This belt support plate 50 is bent to the back side of the lower garnish 30B and engagement shafts 58, 58 provided at a tip end are engaged with engagement shaft hole 60, 60 provided at the back side of the lower garnish 30B. Thereby, the belt support plate 50 is faced to a belt drawing out line of the seat belt 10 in the curved state and slide-rubs and supports the seat belt 10. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a seat belt support structure for a vehicle interior member, and more specifically, provided on a vehicle interior member attached to a vehicle body so as to cover a belt winding device fixed to the vehicle body, The present invention relates to a seat belt support structure for supporting a seat belt to be pulled out in a rubbing state.
[0002]
[Prior art]
For example, FIG. 8 is a schematic explanatory view showing a state in which an occupant (driver) seated on the seat S is using a seat belt 10, which is one of safety equipment. In the case of a passenger car, the seat belt 10 is pulled out from a retractor (belt winding device) 12 fixed to a lower portion of a center pillar 22 which forms a part of the vehicle body, and is hooked on an upper portion of the center pillar 22. After passing through the through ring 14, the distal end is connected to an anchor fixture 16 fixed to the floor of the vehicle body. Further, the tongue plate 18 which is removably inserted into and locked by the buckle 20 fixed to the side of the seat S can be moved to an appropriate position of the seat belt 10 (between the through ring 14 and the anchor fixture 16). It is arranged. Such a seat belt 10 is wound around the retractor 12 when not in use (indicated by a two-dot chain line), and is pulled out from the retractor 12 when in use and the tongue plate 18 is inserted into the buckle 20 and locked, so-called. It becomes a "three-point seat belt" and functions as a lap belt that restrains the driver's waist and a shoulder belt that restrains the upper body.
[0003]
Here, a pillar garnish 30 as a vehicle interior member is mounted on the center pillar 22 for the purpose of improving the texture of the passenger compartment. The pillar garnish 30 is mainly made of injection-molded synthetic resin, and the pillar garnish 30 shown in FIG. 8 is of a vertical split type including an upper garnish 30A and a lower garnish 30B. Is mounted on the center pillar 22 so as to cover the center pillar. For this reason, the seat belt 10 pulled out from the retractor 12 extends into the passenger compartment from the outlet 32 defined at the boundary between the lower garnish 30B and the upper garnish 30A.
[0004]
[Problems to be solved by the invention]
By the way, since various vehicles such as passenger cars generally have a body shape in which the upper part is appropriately narrowed toward the roof, the center pillar 22 also has a moderately curved shape. As a result, the seat belt 10 extending from the retractor 12 to the through ring 14 via the outlet 32 is attached to the upper edge 34 of the lower garnish 30B facing the outlet 32, as is apparent from FIG. Come into contact. The thickness of the upper end side edge 34 is only about 1 mm, which is the same as the thickness of the lower garnish 30B, and the seat belt 10 is pulled out of the retractor 12 at the time of use and wound up around the retractor 12 after use. The surface of the seat belt 10 always rubs against the upper end side edge 34, so that the surface of the seatbelt 10 may be damaged during repeated operations.
[0005]
Therefore, in order to avoid the above-described inconvenience, as illustrated in FIGS. 9 to 12, a belt supporting portion that supports the seat belt 10 in a rubbing state is provided on the back side of the lower garnish 30 </ b> B in the pillar garnish 30. That had been proposed. However, various seatbelt support structures conventionally implemented or proposed have the following disadvantages or problems.
[0006]
First, in the seat belt support structure illustrated in FIGS. 9A and 9B, a steel belt guide 38 formed separately from the lower garnish 30B is thermally caulked above the back side of the lower garnish 30B. The belt guide 38 faces the belt withdrawal line of the seat belt 10. As a result, the seat belt 10 pulled out from the retractor 12 is deflected after contacting the contact surface 38a of the belt guide 38 and extends from the outlet 32 into the passenger compartment, so that the lower garnish 30B Contact with the upper edge 34 is avoided (FIG. 9B). However, there are problems that (1) the number of manufacturing steps and assembling steps increase with the increase in the number of parts, and (2) it is necessary to perform plating treatment as a countermeasure against corrosion because it is made of steel. Was.
[0007]
The seat belt support structure illustrated in FIGS. 10A and 10B has a belt support protrusion that bulges to the back side of the lower garnish 30B and extends to the required length in the lateral direction above the back side of the lower garnish 30B. In this embodiment, the belt support projection 40 faces the belt withdrawal line of the seat belt 10. As a result, the seat belt 10 pulled out from the retractor 12 is deflected after coming into contact with the contact surface 40a of the belt support convex portion 40 and extends from the outlet 32 into the passenger compartment. Contact with the upper end side edge 34 of 30B is avoided (FIG. 10B). However, since the belt support protrusion 40 is relatively thick and swells greatly to the rear side, the lower garnish 30B integrally formed with the belt support protrusion 40 has a front side corresponding to the belt support protrusion 40. In addition, there is a problem that a concave portion (a sink portion) 42 is formed due to heat shrinkage.
[0008]
The seat belt support structure illustrated in FIGS. 11A and 11B is an improved type of the embodiment shown in FIG. 10, and is a semicircle above the lower garnish 30B to the rear of the lower garnish 30B. A plurality of belt support pieces (thickness: about 1 mm) 44 protruding in a shape and arranged at required intervals in the lateral direction are integrally formed, and these belt support pieces 44 are made to face the belt withdrawal line of the seat belt 10. It is a form that did. As a result, the seat belt 10 pulled out from the retractor 12 is deflected after contacting the contact surface 44a of each of the belt support pieces 44 and extends from the outlet 32 into the occupant compartment. Contact with the upper edge 34 of the garnish 30B is avoided (FIG. 11B). However, since each of the belt support pieces 44 is in point contact with the surface of the seat belt 10, when the seat belt 10 is suddenly pulled, a load applied per unit area of the belt increases, and the belt is damaged. There was an inherent problem that easily occurred. Further, depending on the case, there is a problem that the respective belt support pieces 44 themselves are liable to be worn due to rubbing with the seat belt 10.
[0009]
Further, in the seat belt support structure illustrated in FIGS. 12A and 12B, a folded piece 46 extending from the upper edge 34 of the lower garnish 30B to the back side is integrally formed, and the folded piece 46 is attached to the seat. This is a mode in which the belt 10 faces the belt withdrawal line. As a result, the seat belt 10 pulled out from the retractor 12 is deflected after coming into contact with the contact surface 46a of the folding piece 46 and extends from the outlet 32 into the passenger compartment. (FIG. 12B). However, in the lower garnish 30B integrally provided with the folded pieces 46, the folded pieces 46 have an undercut shape, and in order to form the undercut shape, it is necessary to manufacture a slide-type mold having a complicated structure. Therefore, the production cost of the molding die is increased, which leads to an increase in cost.
[0010]
On the other hand, as illustrated in FIG. 13, for example, when a vehicle having a large front and rear dimension of a door D such as a sports type or a large RV type, or a small person slides the seat S forward according to his / her body shape and gets on the vehicle. However, since the distance L between the center pillar 22 and the buckle 20 becomes large, the following inconvenience occurs. That is, when the seat belt 10 is not used, the seat belt 10 extending from the retractor 12 to the through ring 14 extends substantially vertically, as shown in FIG. It does not contact the upper front edge 36 of the lower garnish 30B. However, when the tongue plate 18 is pulled forward to use the seat belt 10, the through ring 14 turns forward as shown in FIG. The seat belt 10 that reaches the ring 14 is displaced obliquely forward, so that the belt 10 comes into contact with the front edge 36 of the upper end of the lower garnish 30B at the outlet 32. Therefore, each time the seat belt 10 is used, the seat belt 10 is pulled out in a state of rubbing against the upper front edge 36, so that the side edge of the seat belt 10 may be worn out. However, in each of the conventional seat belt support structures illustrated in FIGS. 9 to 12, an appropriate measure for preventing the occurrence of such inconvenience has not been taken.
[0011]
[Object of the invention]
The present invention has been proposed in order to preferably solve the above-described problem. In addition to integrally forming a belt support plate with a vehicle interior member, the seat support is supported by bending the belt support plate to the back side of the vehicle interior member. An object of the present invention is to provide a seatbelt support structure for a vehicle interior member, which can suitably avoid damage and abrasion of the surface and side edges of the seatbelt.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve an intended object, the present invention is provided on a vehicle interior member attached to a vehicle body so as to cover a belt winding device fixed to the vehicle body, and the belt winding device includes: In a seat belt support structure that supports a seat belt to be pulled out in a rubbing state,
The vehicle interior member is provided in a state of extending outward at an edge portion thereof, and includes a belt support plate that can be bent to the back side of the member,
By bending the belt support plate to the back side of the vehicle interior member and fixing the tip portion to the back side of the vehicle interior member, the belt support plate is exposed to a belt withdrawal line of the seat belt,
The seat belt is configured to be slidably supported by the belt support plate.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a seat belt support structure for a vehicle interior member according to the present invention will be described below with reference to the accompanying drawings by taking a preferred embodiment. In the present embodiment, a vertical split type pillar garnish 30 illustrated in FIG. 8 and the like will be described as an example of a vehicle interior member. Since the upper garnish 30A is not particularly changed, its illustration and description are omitted, and the modified lower garnish 30B is illustrated and described. In addition, in the section of the related art described with reference to FIGS. 8 to 14, the same members and portions as those already described will be denoted by the same reference numerals.
[0014]
FIG. 1 is a schematic perspective view showing a lower garnish 30B of a pillar garnish 30 employing a seat belt support structure according to a preferred embodiment in a molded state, and FIG. 2 is a sectional view taken along line II-II of FIG. It is. The lower garnish 30B is a resin molded member made of a resin material such as polypropylene (PP) based on an injection molding technique, and is directed toward the passenger compartment of the center pillar 22 as described above. The retractor (belt winding device) 12 fixed to the center pillar 22 is covered by being mounted on the lower portion.
[0015]
In the lower garnish 30B of the embodiment, a belt support plate 50 is formed integrally with an upper end side edge (edge portion) 34 facing the outlet 32 in a state of extending outward. The belt support plate 50 is formed simultaneously with the injection molding of the lower garnish 30B, and is entirely preformed into a rectangular flat plate shape, and its width dimension W1 is set appropriately larger than the width dimension W2 of the seat belt 10. (FIG. 5). Further, the thickness T is set to about 2 mm (FIG. 2), and as described later, the belt support plate 50 itself is allowed to elastically deform in a curved shape.
[0016]
An inclined surface 52 having a required angle is formed on the base end 50a side to be joined to the lower garnish 30B, and a joining boundary portion 54 between the lower garnish 30B and the belt support plate 50 is made thin. Function as a so-called integral hinge. That is, as will be described later, the belt support plate 50 integrally connected to the lower garnish 30B in the posture state of FIGS. 1 and 2 has its tip pressed to the left in FIG. 2 due to the characteristics of the PP material. At this time, the joint boundary portion 54 can be bent without being deformed from the hinge center to a position where the inclined surface 52 contacts the upper end side edge 34 (FIG. 3A).
[0017]
The engaging shafts (first engaging portions) 58, 58 of the required length extending in both the left and right directions are the same on both left and right end surfaces of the convex portion 56 integrally formed on the tip end 50 b side of the belt support plate 50. It protrudes integrally in the shape of an axis. On the other hand, on the back side of the lower garnish 30B, engagement shaft holes (second engagement portions) 60, 60 with which the respective engagement shafts 58, 58 can be engaged correspondingly, are integrally formed in the same axial line. It is protruded. Thus, the belt support plate 50 itself is elastically deformed in a curved shape by further applying a pressing force to the tip from the state of FIG. The engagement of the corresponding engagement shaft holes 60 with the 58 is allowed, and the tip 50b can be fixedly held on the back side of the lower garnish 30B. That is, by engaging the engagement shaft 58 with the corresponding engagement shaft hole 60, the belt support plate 50 is elastically deformed into a curved shape protruding toward the belt withdrawal line of the seat belt 10, and the contact surface 51 is formed. It comes to face the belt withdrawal line.
[0018]
As shown in FIG. 2 and the like, the engaging shaft hole 60 is opened rearward to allow sliding engagement of the engaging shaft 58 from the rear side, and the width of the opening is adjusted to the width of the engaging shaft. The diameter is set slightly smaller than the diameter of the shaft 58. For this reason, the engagement shaft 58 is fitted so as to be pushed into the engagement shaft hole 60, and the engagement shaft 58 once engaged with the engagement shaft hole 60 is Considered not to easily desorb from
[0019]
As shown in FIG. 4 and FIG. 5, the seat belt 10 pulled out along the belt pull-out line is provided at both end portions of the contact surface 51 that sandwich the belt pull-out line. And guide portions 62, 62 abutting on the side edges. These guide portions 62, 62 are projecting pieces of a required length integrally projecting from the belt support plate 50, and the protruding height H thereof is set to be appropriately larger than the thickness of the seat belt 10 (FIG. 2, FIG. 4). Thereby, the seat belt 10 pulled out or taken up along the belt pull-out line is restricted from being displaced laterally so as to come off the belt support plate 50, and the side edge of the seat belt 10 is , Can be prevented from contacting the upper front edge 36 of the lower garnish 30B. In addition, each guide part 62 may be divided into a plurality of parts in the longitudinal direction, and in this case, the flexible deformation of the belt support plate 50 is not hindered.
[0020]
As described above, the belt support plate 50 has a thickness T set to about 2 mm, the base end 50a is connected to the upper end side edge 34 of the lower garnish 30B, and the tip 50b is located on the back side of the lower garnish 30B. , A so-called bridge state that protrudes in a curved shape toward the belt withdrawal line. For this reason, as shown in FIG. 6, when the pressing force of the seat belt 10 is applied, the belt supporting plate 50 can be elastically deformed in a direction away from the belt pull-out line (rightward in the figure), The seat belt 10 can be elastically supported.
[0021]
As described above, in the seat belt support structure of the vehicle interior member according to the embodiment, the belt support plate 50 is integrally joined to the edge of the lower garnish 30B of the pillar garnish 30 as the vehicle interior member in a state where the belt support plate 50 extends outward. And the belt support plate 50 can be bent to the back side of the lower garnish 30B. Moreover, as is apparent from FIGS. 1 and 2, even when the belt support plate 50 is connected to the lower garnish 30B, the belt support plate 50 does not have a shape having an undercut portion. Molding can be performed without using an expensive slide-type molding die, and the disadvantage of increasing molding cost does not occur. Further, the belt support plate 50 can function as a belt support portion of the seat belt 10 by an extremely simple operation of bending the back side of the lower garnish 30B to engage the engagement shaft 58 with the engagement shaft hole 60.
[0022]
Further, since the belt support plate 50 is set wider than the width dimension of the seat belt 10 and exhibits a curved shape, the belt support plate 50 is always slidably supported while being in surface contact with the surface of the seat belt 10 in a wide area. In other words (shaded display in FIG. 5), since a large load is not partially applied to the seat belt 10, the surface of the seat belt 10 can be suitably prevented from being worn. Furthermore, when a pressing force is applied from the seat belt 10, the elastic member is appropriately elastically deformed, so that an excessive pressing force can be prevented from being applied to the seat belt 10. Further, the guide portions 62, 62 located on the side of the seat belt 10 contact the upper front edge 36 of the lower garnish 30B in order to prevent the seat belt 10 from moving laterally. Abrasion of the side edge of the belt 10 can also be prevented.
[0023]
When the belt supporting plate 50 is formed simultaneously with the lower garnish 30B, it may be preformed into a rectangular curved plate shape as shown in FIG. The curved shape by the preforming is the same as the curved shape shown in FIG. 3B, and when bent to the back side of the lower garnish 30B, each of the engaging shafts 58 has a corresponding engaging shaft hole 60. , And the front end of the belt support plate 50 is fixed without being elastically deformed (indicated by a two-dot chain line in the figure). Even in this case, if the thickness T of the belt support plate 50 is set to about 2 mm, when the pressing force of the seat belt 10 is applied, the direction away from the belt pull-out line as illustrated in FIG. (To the right) can be elastically deformed, and the seat belt 10 can be elastically supported.
[0024]
Although not shown, if a reinforcing rib or the like is provided on the back side of the belt support plate 50, it is possible to prevent the belt support plate 50 from being intentionally deformed when the pressing force of the seat belt 10 is applied. .
[0025]
The shape of the belt support plate 50 is not limited to those described in the above embodiment and other examples. Further, the first engagement portion 58 and the second engagement portion 60 are not limited to the engagement form of the engagement shaft and the engagement shaft hole.
[0026]
【The invention's effect】
As described above, according to the seatbelt support structure of the vehicle interior member according to the present invention, after integrally forming the belt support plate at the edge portion of the vehicle interior member in a joined state extending outward, The belt supporting portion of the seat belt can be formed by an extremely simple operation of simply bending the belt supporting plate to the back side of the vehicle interior member. In addition, even when the belt support plate is connected to the vehicle interior member, it is possible to mold without using a slide-type molding die having a complicated structure and a high production cost, so that the molding cost may be increased. Has no beneficial effect.
Since the belt support plate has a curved plate shape and projects to the belt pull-out line, the belt support plate is always slidably supported while being in surface contact with a surface of the seat belt in a wide area. There is also an advantage that the surface can be suitably prevented from being rubbed. Furthermore, since the elastic member is appropriately elastically deformed when a pressing force is applied from the seat belt, there is an advantage that an excessive pressing force can be prevented from being applied to the seat belt.
Further, since the guide portion located on the side of the seat belt is provided, it is possible to prevent the side edge of the seat belt from being worn by contact with the vehicle interior member.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a lower garnish in a pillar garnish as a vehicle interior member employing a seat belt support structure according to a preferred embodiment in a state of being injection-molded.
FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1, and illustrates a case where a belt support plate extending from an upper end of a lower garnish is preformed into a flat plate shape.
3A and 3B are explanatory cross-sectional views illustrating a state in which the belt support plate is bent to the back side of the lower garnish, and FIG. 3A illustrates a state in which the belt support plate is bent to a position where the belt support plate is bent without being deformed; (B) shows a state where the distal end side is further pushed from the state of (a) to be elastically deformed in a curved shape, and then the engagement shaft is engaged with the engagement shaft hole.
FIG. 4 is an explanatory cross-sectional view showing a state in which a belt support plate facing a belt pull-out line slides and supports a seat belt.
FIG. 5 is a view taken along line VV of FIG. 4;
FIG. 6 is an explanatory sectional view showing that the belt support plate is appropriately elastically deformed when pressed by the seat belt.
FIG. 7 is a cross-sectional view showing another example in which a belt support plate connected to the upper end of a lower garnish is preformed into a curved plate shape.
FIG. 8 is a schematic explanatory view showing a state in which an occupant (driver) sitting on a seat is using a safety belt, which is safety equipment.
9A is a schematic perspective view of a pillar garnish implementing a conventional seat belt support structure configured by attaching a belt guide to the back side, and FIG. 9B is a cross-sectional view taken along line IX-IX of FIG. It is.
FIG. 10A is a schematic perspective view of a pillar garnish implementing a conventional seat belt support structure formed by projecting a belt support convex portion on the back side, and FIG. 10B is a perspective view of FIG. It is a line sectional view.
FIG. 11A is a schematic perspective view of a pillar garnish implementing a conventional seat belt support structure constituted by projecting a plurality of belt support pieces on the back side, and FIG. 11B is a perspective view of Y- in FIG. It is a Y line sectional view.
12A is a schematic perspective view of a pillar garnish implementing a conventional seatbelt support structure configured by integrally forming a folded piece, and FIG. 12B is a cross-sectional view taken along line ZZ of FIG. FIG.
FIG. 13 is an explanatory view showing a seating mode in which a distance between a center pillar and a buckle is large.
FIG. 14 (a) is a state diagram when the seat belt is not used, and since the seat belt from the retractor to the through ring extends substantially vertically, the belt is at the upper end of the lower garnish at the outlet. (B) is a state diagram when the front belt is pulled forward to use the seat belt, in which the through ring pivots forward and reaches from the retractor to the through ring. This indicates that the seat belt is displaced obliquely forward, so that the belt contacts the upper front edge of the lower garnish at the outlet.
[Explanation of symbols]
12 retractor (belt winding device)
30 Pillar garnish (vehicle interior material)
30B Lower garnish (vehicle interior parts)
10 seat belt 50 belt support plate 58 engagement shaft (first engagement portion)
60 engagement shaft hole (second engagement part)
62 Guide part

Claims (6)

A seat belt (10) provided on a vehicle interior member (30 / 30B) attached to the vehicle body so as to cover a belt winding device (12) fixed to the vehicle body, and pulled out from the belt winding device (12). In the seat belt support structure that supports the rubbing state,
A belt support plate (50) that is provided at an edge portion of the vehicle interior member (30 / 30B) so as to extend outward and can be bent to the back side of the member (30 / 30B);
By bending the belt support plate (50) to the back side of the vehicle interior member (30 / 30B) and fixing the front end thereof to the back side of the vehicle interior member (30 / 30B), the belt support plate (50) is fixed. 50) toward the belt pull-out line of the seat belt (10),
A seat belt support structure for a vehicle interior member, wherein the seat belt (10) is slidably supported by the belt support plate (50). A first engaging portion (58) is provided at the tip of the belt support plate (50), and the first engaging portion (58) can be engaged with the back side of the vehicle interior member (30 / 30B). A second engaging portion (60) is provided;
By engaging the first engagement portion (58) with the second engagement portion (60), the tip of the belt support plate (50) can be fixed to the back side of the vehicle interior member (30 / 30B). The seat belt support structure for a vehicle interior member according to claim 1. The belt support plate (50) is preformed into a flat plate shape, and protrudes toward the belt drawing line when the first engagement portion (58) is engaged with the second engagement portion (60). 3. The seat belt supporting structure for a vehicle interior member according to claim 2, wherein the seat belt supporting structure is elastically deformed in a curved shape. The belt support plate (50) is preformed into a curved plate shape, and when the first engagement portion (58) is engaged with the second engagement portion (60), the belt support plate (50) moves toward the belt drawing line. 3. The seat belt support structure for a vehicle interior member according to claim 2, wherein the seat belt support structure protrudes. The said belt support plate (50) is elastically deformed when the pressing force of the said seatbelt (10) is applied, and can elastically support this seatbelt (10). A seat belt support structure for a vehicle interior member according to any one of the preceding claims. The belt support plate (50) has guide portions (62, 62) at both ends sandwiching the belt pull-out line, and abutting against side edges of the seat belt (10) pulled out along the belt pull-out line. The seat belt support structure for a vehicle interior member according to any one of claims 1 to 5, wherein the seat belt (10) is capable of restricting lateral displacement of the seat belt (10).

Images