JP5593201B2 - Seat belt tongue retention structure - Google Patents

Description

  The present invention relates to a seat belt tongue holding structure for detachably holding a seat belt tongue attached to a seat buckle at a predetermined position of a vehicle.

  A tongue is connected to a predetermined portion of the seat belt, and the occupant seated on the seat is restrained by the seat belt by inserting and engaging the tongue with a buckle disposed in the vicinity of the seat. Yes. As such a seat belt, a two-point seat belt that restrains the left and right two places of the occupant's waist or a shoulder part by restraining the shoulder from the shoulder and restraining the left and right two places of the occupant's waist 3 A point seat belt is used.

  The latter three-point seat belt is connected to a retractor (winding device) on the inner side of the ceiling of the vehicle and extends from an opening formed in the ceiling in the case of a vehicle center seat. The two tongues are attached to a predetermined location. And a belt is let out from the opening of a ceiling part, and a tongue is each engaged with the buckle of both sides of a sheet | seat, and two places of a passenger | crew's shoulder part and waist are restrained. The tongue is detachably held at a predetermined position (ceiling part) of the vehicle when the seat belt is not used.

  As a structure for holding the tongue of the seat belt, various forms have been developed. For example, Patent Document 1 below discloses a seat belt hanger that holds a tongue in a pocket provided in a garnish, and a tongue locking piece that extends from a peripheral edge of an insertion port formed in the garnish via a hinge portion. And a pair of claws provided on the back surface of the garnish for engaging the tongue piece, and a protruding portion engaging with a latch hole of the tongue, and a leading end portion of the tongue entering the tongue engaging piece. It is described that a U-shaped part and a folded part that is folded back from the tip of the U-shaped part are formed.

  After resin molding of the hanger, the tongue locking piece is bent through the hinge portion, and the folded portion is locked to the pair of claws, so that the raised portion of the tongue locking piece is inserted from the insertion port. It is arranged in the middle of the tongue insertion path, and an oblique pocket is formed in the garnish. And when the tongue is inserted from the insertion opening of the garnish, the protruding portion of the tongue locking piece is elastically deformed, the protruding portion is inserted into the latch hole of the tongue, and at the same time, the leading end of the tongue is sandwiched in the U-shaped portion, A tongue is held in the pocket.

  A seat belt hanger having a structure shown in FIG. 9 is also known. The seat belt hanger includes a garnish 6 that is fixed to the ceiling of the vehicle and a clip 7 that is attached to the garnish 6. The garnish 6 has an insertion port 6a for tongue insertion, and a wall portion 6b erected from the rear surface side periphery of the insertion port 6a. One side of the clip 7 is fixed to the wall 17, and a locking piece 8 that engages with the opening 4 of the tongue 1 is provided on the other side. The locking piece 8 includes a base portion 8a extending obliquely downward from the vicinity of the upper end of the clip 7, an intermediate portion 8b hanging from the base portion 8a, and a bent portion in the opposite direction from the intermediate portion 8b to the base portion 8a. And the tip 8c.

  9A, when the tongue 1 is inserted from the insertion port 6a, the distal end 8c is pressed against the distal end of the tongue and the locking piece 8 is bent, and the distal end of the opening 4 of the tongue 1 is bent. However, when the upper end of the intermediate portion 8b of the locking piece 8 is passed, the locking piece 8 is elastically restored. Then, as shown in FIG. 9 (b), the locking piece 8 enters the opening 4 of the tongue 1, and the base 8 a of the locking piece 8 engages with the inner peripheral edge of the distal end side of the opening 4. The distal end portion 8 c of the locking piece 8 is engaged with the inner peripheral edge of the base end side of the portion 4, and the tongue 1 is detachably held via the clip 7.

JP-A-9-309406

  In the seat belt hanger having the structure shown in FIG. 9, the holding force of the tongue 1 can be increased by changing the shape of the locking piece 8 of the clip 7. That is, as shown by the imaginary line in FIG. 9B, the locking piece 8 with respect to the peripheral edge on the front end side of the opening 4 of the tongue 1 can be bent more greatly with respect to the intermediate portion 8b. Since the engagement angle of the base portion 8a and the engagement angle of the distal end portion 8c with respect to the proximal end side periphery of the opening 4 are steep, the holding force of the tongue 1 can be increased. On the other hand, as shown in FIG. 9A, when the tongue 1 is inserted from the insertion port 6a, the pushing force from the clip 7 to the tip 8c deflects the locking piece 8 toward the wall 6b. Therefore, there is a demerit that the insertion resistance at the time of tongue insertion increases. On the other hand, if the inclination angle of the distal end portion 8c is set to be small with respect to the intermediate portion 8b, when the tongue 1 is inserted from the insertion port 6a, the locking piece 8 is easily bent toward the wall portion 6b, and the insertion resistance is reduced. In this case, the holding power of the tongue 1 is reduced.

  Accordingly, an object of the present invention is to provide a seat belt tongue holding structure capable of reducing the insertion resistance of the tongue to the insertion opening of the resin holder and increasing the holding force of the tongue. .

To achieve the above object, the seat belt tongue holding structure of the present invention has a connecting portion connected to the seat belt, a plate portion extending from the connecting portion, and an opening formed in the plate portion. A resin holder for detachably holding a tongue at a predetermined location of the vehicle, having a slot for the tongue plate, and being attached to a predetermined location on the inner wall of the vehicle; A clip attached to the inside of the insertion port, and the clip includes a fixing portion to the resin holder, and a leaf spring portion extended from the fixing portion so as to enter an insertion path of the plate portion of the tongue. has, the plate spring portion is inclined toward the insertion direction of the tongue from the fixed part, it is extended so as to enter into the opening portion of the plate portion while approaching the insertion path And bent toward the direction away from the insertion path from the distal end of the inclined portion in a direction opposite to the inclined direction of the inclined portion, and is engaged with the peripheral edge on the distal end side of the opening of the plate portion. An engaging portion and further extended from the tip of the first engaging portion, and obliquely outward so as to be in a direction opposite to the first engaging portion in a direction approaching the insertion path. It has a second engaging portion that is bent and engages with the tip of the plate portion.
Another aspect of the seat belt tongue holding structure of the present invention includes a connecting portion connected to the seat belt, a plate portion extending from the connecting portion, and a tongue having an opening formed in the plate portion. A resin holder for detachably holding at a predetermined location of a vehicle, having an insertion port for the plate portion of the tongue, and being attached to a predetermined location on an inner wall of the vehicle, and the insertion port of the resin holder And a clip attached to the inside of the resin holder, the clip having a fixed portion to the resin holder, and a leaf spring portion extended from the fixed portion so as to enter the insertion path of the plate portion of the tongue. , the leaf spring portion, the fixed portion toward the insertion direction of the tongue, and an inclined portion that extends so as to enter into the opening portion of the inserting the plate portion while approaching the path, the inclination A first engagement portion that is bent in a direction opposite to the inclination direction of the inclined portion toward a direction away from the insertion path from the distal end of the plate portion, and engages with a peripheral edge of the opening portion of the plate portion; Further extending from the tip of the first engagement portion, bent in a direction opposite to the first engagement portion toward the direction approaching the insertion path, and engaged with the tip of the plate portion. It has a 2nd engaging part, and the tip of the above-mentioned inclined part does not contact with the above-mentioned resin holder .

  In the tongue holding structure of the seat belt of the present invention, the inclination angle θ1 of the inclined portion with respect to the insertion direction of the plate portion is smaller than the inclination angle θ2 of the second engagement portion with respect to the insertion direction of the plate portion. It is preferable that it is set to.

  In the seat belt tongue holding structure of the present invention, the tip end portion of the second engaging portion extends along the insertion direction of the plate portion or bends away from the insertion path in the insertion direction. It is preferable that

  In the tongue holding structure of the seat belt of the present invention, the resin holder has a wall portion extending toward the insertion direction on the peripheral edge on the back side of the insertion port, and the fixing portion of the clip is An outer plate portion and an inner plate portion connected via a bent portion so as to elastically sandwich the inner and outer surfaces of the wall portion, and the outer plate portion is engaged with the outer surface of the wall portion. A claw is formed, and the inner plate portion extends from both ends of the distal end edge portion to which the base portion of the leaf spring portion is connected, and extends to the outer plate portion via the bent portion. It is preferable to have both side edges connected.

  According to the present invention, when the plate portion of the tongue is inserted from the insertion opening of the resin holder, the plate portion is inserted while the inclined portion of the leaf spring portion is pressed and bent by the tip of the plate portion, and the opening portion of the plate portion is inserted. When the first engagement portion reaches, the leaf spring portion is elastically restored, the first engagement portion enters the opening portion of the plate portion, and the first engagement portion is engaged with the inner peripheral edge on the front end side of the opening portion. And the second engaging portion engages with the front end of the plate portion, so that the plate portion can be held between the first engaging portion and the second engaging portion. The plate portion can be retained while being held down.

  In addition, by increasing the angle of the first engagement portion and the second engagement portion with respect to the insertion direction of the plate portion into the insertion port (hereinafter referred to as “plate portion insertion direction”), the front end side of the plate portion opening The engaging angle of the first engaging part with respect to the inner peripheral edge and the engaging angle of the second engaging part with respect to the tip of the plate part become steep, and the holding force of the plate part can be increased.

  At this time, when the plate portion is inserted into the insertion port, the inclined portion that is pressed by the plate portion and bends and becomes an insertion resistance is formed separately from the first engagement portion and the second engagement portion. The angle with respect to the direction can be set independently.

  Therefore, by inserting the angle of the inclined portion with respect to the plate portion insertion direction while increasing the holding force of the plate portion while increasing the angle of the first engagement portion or the second engagement portion with respect to the plate portion insertion direction. Resistance can be reduced.

  In addition, with the plate portion held by the clip, the first engagement portion is pressed against the inner peripheral edge of the front end side of the opening of the plate portion by grasping and pulling the connection portion or the seat belt connected thereto. The leaf spring portion bends away from the insertion path, the first engagement portion is extracted from the opening portion of the plate portion, and the second engagement portion is also detached from the front end of the plate portion. The plate portion can be pulled out, and the plate portion can be attached to the seat buckle.

1 is an exploded perspective view showing an embodiment of a seat belt tongue retaining structure according to the present invention. FIG. It is a perspective view of the resin holder which comprises the tongue holding structure. It is a perspective view which shows the state which attached the clip to the wall part in the tongue holding structure. It is a side view of the clip which comprises the tongue holding structure. In the same tongue holding structure, it is a perspective view which shows the state which inserts the plate part of a tongue from the insertion port of a resin holder. The usage state of the tongue holding structure is shown, (a) is a sectional view when the plate portion is inserted, and (b) is a sectional view in a state where the plate portion is held by the clip. It is a perspective view of the state which hold | maintained the plate part with the clip in the tongue holding structure. In the same tongue holding structure, it is a sectional view showing a state of a leaf spring part when the plate part is pushed too far from a predetermined position. The usage state of the conventional holding structure is shown, (a) is sectional drawing at the time of inserting a plate part, (b) is sectional drawing in the state by which the plate part was hold | maintained at the clip.

  Hereinafter, an embodiment of a seat belt tongue retaining structure (hereinafter referred to as a “tang retaining structure”) according to the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, this tongue holding structure holds the tongue 1 in a predetermined position of the vehicle so as to be detachable. In this embodiment, the two tongues 1 provided on the three-point seat belt 5 are held. However, the tongue of the two-point seat belt may be held and should be held. The number of tongues is not particularly limited.

  As shown in FIG. 1, the tongue 1 of this embodiment includes a resin connection portion 2 connected to a seat belt 5, a metal plate portion 3 extending from the tip of the connection portion 2, and It has a horizontally long rectangular opening 4 formed in the center of the plate portion 3. A notch 3 a is formed at the center of the tip of the plate portion 3. The tongue 1 may be one in which the connecting portion 2 and the plate portion 3 are integrally formed of metal, and is not particularly limited.

  The tongue holding structure has an insertion port 15 for the plate portion 3 of the tongue 1, and a resin holder 10 (see FIG. 2) attached to a predetermined location on the inner wall of the vehicle, and the insertion port 15 of the resin holder 10. And a clip 30 attached to the inside.

  As shown in FIG. 2, the resin holder 10 of this embodiment is attached to the ceiling C of the vehicle, and has a bottom wall 11 and a peripheral wall 12 erected from the periphery of the bottom wall 11. . A recess 13 is provided in the bottom wall 11, and two long hole-like insertion ports 15 are formed in parallel at a predetermined interval on the bottom surface of the recess 13. The plate portion 3 of the tongue 1 is inserted from the front surface side of the insertion port 15 and is inserted from the back surface of the insertion port 15 (see arrow A in FIG. 2). In the following description, the insertion direction of the plate portion 3 indicated by arrow A into the insertion port 15 is referred to as “plate portion insertion direction”. As shown in FIG. 1, a long frame-shaped wall portion 17 that surrounds the periphery of the insertion port 15 extends from the rear surface side periphery of the insertion port 15 toward the plate portion insertion direction. The clip 30 is attached to one side wall along the length direction of the wall portion 17. The resin holder 10 may be attached to a vehicle pillar or the like, and the attachment location is not particularly limited. In addition, as shown in FIGS. 1, 3, 5 and 7, from the inner surface of one side wall of the long frame-shaped wall portion 17 along the length direction, an interval located on both sides of the clip 30 is provided, A pair of ribs 18, 18 project, and a pair of ribs 18, 18 project from the inner surface of the other side wall along the length direction of the wall portion 17.

  The clip 30 attached inside the insertion port 15 of the resin holder 10 will be described with reference to FIGS. 1 and 3 to 8. The clip 30 in this embodiment is formed by bending from a predetermined metal plate material, and the plate portion 3 is inserted from the fixing portion 31 to the resin holder 10 and the portion disposed on the inner periphery of the insertion port 15 of the fixing portion 31. And a leaf spring portion 50 extended so as to enter the path R (see FIG. 4 and FIG. 6A)).

  The fixing portion 31 includes an outer plate portion 35 connected via a pair of bent portions 33 and 33 bent in a U shape so as to elastically hold the inner and outer surfaces of the wall portion 17 of the resin holder 10. And an inner plate portion 40. The outer plate portion 35 is disposed on the outer surface side of the wall portion 17, and the inner plate portion 40 is disposed on the inner surface side of the wall portion 17. As shown in FIG. 4, the outer plate portion 35 is bent obliquely inward so that the tip side thereof is close to the inner plate portion 40, and the interval between the outer plate portion 35 and the inner plate portion 40 is narrowed. Thus, the wall portion 17 of the resin holder 10 can be elastically sandwiched.

  As shown in FIG. 3, engaging claws 36 and 36 are formed on both sides of the outer plate portion 35 in the width direction via slits 36a. Each engaging claw 36 is bent inward toward the inner plate portion 40 side, and has a triangular plate shape in which the base portion side is wide and gradually narrows toward the distal end side. It engages so as to bite into the outer surface of 17 (see FIG. 6). Further, the front end portion 37 of the outer plate portion 35 is folded back obliquely outward so as to be separated from the inner plate portion 40, and the wall portion 17 can be inserted between the outer plate portion 35 and the inner plate portion 40. Yes.

  On the other hand, the inner plate portion 40 has a gap 41 formed in the length direction on the inner side thereof, and a tip edge portion 43 located on the tip side in the length direction is formed on the other portion of the inner plate portion 40. On the other hand, it is bent so as to be substantially orthogonal to the outside. A base portion of the leaf spring portion 50 is connected to an end edge portion on the gap 41 side in the center in the width direction of the tip edge portion 43. Further, from both sides in the width direction of the tip edge portion 43, a pair of both side edge portions 45, 45 having a band shape extend along both sides of the leaf spring portion 50, and these are the U-shaped bent portions. The outer plate part 35 is connected to both sides in the width direction via 33, 33.

  As shown in FIGS. 1, 3, and 5, the leaf spring portion 50 is formed so as to be able to bend inwardly by cutting and raising the gap 41 of the inner plate portion 40, and the leading edge of the inner plate portion 40. An inclined portion 51 extending from 43, a first engaging portion 53, and a second engaging portion 55 are included.

  Each part will be described with reference to FIGS. 4 and 6. The inclined portion 51 is formed on the plate portion 3 from the tip edge portion 43 of the inner plate portion 40 of the fixing portion 31 toward the plate portion insertion direction A. It extends diagonally outward (in a direction away from the inner plate portion 40) so as to enter while approaching the insertion path R. When the plate portion 3 is inserted, the plate spring portion is pressed against the tip portion of the plate portion 3. It becomes the part which bends 50 inward.

  On the other hand, the first engaging portion 53 is inclined inward (inner plate) in a direction opposite to the inclination direction of the inclined portion 51 from the tip of the inclined portion 51 toward the direction away from the insertion path R. And is engaged with the inner peripheral edge of the front end side of the opening 4 of the plate portion 3. In the following description, “outward” means a direction away from the inner plate portion 40, and “inward” means a direction approaching the inner plate portion 40.

  The second engaging portion 55 is further extended from the tip of the first engaging portion 53 and is in a direction opposite to the first engaging portion 53 in a direction approaching the insertion path R. And is engaged with the tip of the plate portion 3. The second engagement portion 55 of this embodiment includes a base 56 extending in parallel along the insertion path R from the distal end of the first engagement portion 53, and a direction approaching the insertion path R from the distal end of the base 56. And an intermediate portion 57 formed slightly narrower than the base portion 56 (see FIG. 3) and parallel to the plate portion insertion direction A from the front end of the intermediate portion 57. The intermediate portion 57 and the tip portion 58 extending with the same width are included. As shown in FIGS. 6B and 7, the intermediate portion 57 of the second engagement portion 55 is a portion that engages with the notch portion 3 a at the tip of the plate portion 3. The tip 58 may be bent diagonally inward from the tip of the intermediate portion 57 so as to be away from the insertion path R of the plate portion 3.

  Further, in this embodiment, as shown in FIG. 4, the inclination angle θ1 of the inclined portion 51 with respect to the plate portion insertion direction A is equal to the inclination angle θ2 of the intermediate portion 57 of the second engaging portion 55 with respect to the plate portion insertion direction A. It is set to be smaller. The inclination angle θ1 is preferably 15 to 30 °, and more preferably 20 to 25 °. The inclination angle θ2 is preferably 45 to 90 °.

  Next, the effect of the tongue holding structure having the above structure will be described.

  First, the clip 30 is attached to the resin holder 10. That is, as shown in FIG. 1, the clip 30 is aligned between the ribs 18 and 18, the outer plate portion 35 is disposed on the outer surface side of the wall portion 17 of the resin holder 10, and the inner surface side of the wall portion 17 is disposed. The inner plate portion 40 is arranged, the clip 30 is pushed toward the wall portion 17, and the wall portion 17 is inserted between both the plate portions 35, 40 while elastically expanding the both plate portions 35, 40. At this time, the clip 30 has the distal end portion 37 of the outer plate portion 35 bent outward and the distal end edge portion 43 of the inner plate portion 40 is also bent outward. , 40 can smoothly insert the wall portion 17.

  When the clip 30 is pushed in until the leading edge 43 of the inner plate 40 abuts the bottom of the recess 13 of the resin holder 10, the leading edge 43 contacts the bottom of the recess 13 of the resin holder 10 and is positioned. At the same time, the engaging claws 36, 36 on both sides of the outer plate portion 35 are engaged so as to bite into the outer surface of the wall portion 17, so that the clip 30 can be attached to the inside of the insertion port 15 of the resin holder 10 (FIG. 3). , 5, 6). Further, since the ribs 18 and 18 projecting from the inner surface of one side wall along the length direction of the wall portion 17 are arranged on both sides of the clip 30, the wall of the clip 30 is prevented from being displaced. The clip 30 can be firmly positioned and held at a predetermined position of the portion 17 (see FIG. 5).

  As described above, the clip 30 of this embodiment has the engaging claw 36 as the wall portion by sandwiching the wall portion 17 of the resin holder 10 between the outer plate portion 35 and the inner plate portion 40 of the fixing portion 31. 17, the clip 30 is pushed into the wall portion 17 and the wall portion 17 of the resin holder 10 is simply inserted between the outer plate portion 35 and the inner plate portion 40. The clip 30 can be attached to the resin holder 10, and the workability of attaching the clip 30 can be improved. Further, the front edge 43 of the inner plate 40 is connected to the base of the leaf spring 50, and the side edges 45, 45 are disposed on both sides of the leaf spring 50 (see FIG. 5). The fixing part 31 can be stably fixed to the wall part 17 of the resin holder 10 while preventing the interference between the part 50 and the fixing part 31.

  As described above, the plate portion 3 of the tongue 1 is inserted along the plate portion insertion direction A from the surface side of the insertion port 15 of the resin holder 10 attached to the ceiling portion C (see FIG. 2). Then, as shown in FIG. 6A, the plate portion 3 inserted from the back surface side of the insertion port 15 protrudes from the inner surfaces of both side walls along the length direction of the long frame-like wall portion 17. The ribs 18 are inserted along the insertion path R while both side surfaces are guided, and when the tip of the plate portion 3 comes into contact with the inclined portion 51, the inclined portion 51 of the leaf spring portion 50 is pressed. As indicated by an arrow B in FIG. 6 (a), it bends in a direction approaching the inner plate portion 40. When the first engaging portion 53 reaches the opening 4 of the plate portion 3, the leaf spring portion 50 is elastically restored, and the first engaging portion 53 enters the opening 4. The first engaging portion 53 is engaged with the inner peripheral edge on the front end side, and the intermediate portion 57 of the second engaging portion 55 is engaged with the notch portion 3 a on the front end of the plate portion 3, and the tongue is connected via the clip 30. 1 is held (see FIGS. 6B and 7). Thus, in the tongue holding structure in this embodiment, the plate portion 3 can be held between the first engaging portion 53 and the intermediate portion 57 of the second engaging portion 55. The plate portion 3 can be retained and retained while the backlash is suppressed.

  Further, as shown in FIG. 4, by increasing the inclination angle θ3 of the first engagement portion 53 with respect to the plate portion insertion direction A, the engagement angle of the opening portion 4 of the plate portion 3 with respect to the inner peripheral edge on the front end side is a steep angle Therefore, the holding force of the plate part 3 can be increased. Similarly, by increasing the inclination angle θ2 of the intermediate portion 57 of the second engagement portion 55 with respect to the plate portion insertion direction A, the engagement angle with respect to the notch portion 3a at the tip of the plate portion 3 is made steep, and the plate The holding power of the part 3 can be increased.

  When the plate portion 3 is inserted into the insertion port 15, the inclined portion 51 that is pressed and bent by the tip of the plate portion and becomes an insertion resistance is separated from the first engagement portion 53 and the second engagement portion 55. Since it is formed, the inclination angle θ1 (see FIG. 4) with respect to the plate portion insertion direction A can be set uniquely.

  Therefore, the inclination angle θ3 of the first engagement portion 53 with respect to the plate portion insertion direction A and the inclination angle θ2 of the intermediate portion 57 of the second engagement portion 55 are maximized to increase the holding force of the plate portion 3. By reducing the inclination angle θ1 of the inclined portion 51 with respect to the plate insertion direction A, the insertion resistance of the plate portion 3 can be reduced, and the easy-to-use tongue holding structure having both low insertion resistance and high plate holding force Can be provided.

  In this embodiment, the inclination angle θ1 of the inclined portion 51 with respect to the plate portion insertion direction A is set to be smaller than the inclination angle θ2 of the intermediate portion 57 of the second engaging portion 55 with respect to the plate portion insertion direction A. . That is, the second engagement that is a factor for improving the holding force of the plate portion 3 while reducing the insertion resistance as much as possible by reducing the inclination angle θ1 of the inclined portion 51 that causes the insertion resistance with respect to the plate portion insertion direction A. By increasing the inclination angle θ2 of the intermediate portion 57 of the portion 55 with respect to the plate portion insertion direction A, the holding force of the plate portion 3 can be increased, and a more convenient tongue holding structure can be provided.

  And when restraining a passenger | crew's body using the seatbelt 5, as shown in FIG.6 (b), in the state hold | maintained holding | maintenance of the plate part 3, the connection part 2 of the tongue 1 is hold | gripped, The plate portion 3 is pulled in the direction opposite to the plate portion insertion direction A. Then, the first engaging portion 53 is pressed against the inner peripheral edge of the opening portion 4 of the plate portion 3 so that the leaf spring portion 50 bends away from the insertion path R, and the first engagement portion 53 extends from the opening portion 4. As the joining portion 53 comes out, the intermediate portion 57 of the second engaging portion 55 is also disengaged from the notch portion 3a at the tip of the plate portion 3, and the holding of the plate portion 3 is released. By further pulling the plate portion 3 in this state, the plate portion 3 can be pulled out from the insertion port 15. Thereafter, the occupant can be restrained by inserting the plate portion 3 into the buckle near the seat. Thus, in this tongue holding structure, the plate part 3 can be removed from the resin holder 10 by a simple operation of simply pulling the plate part 3, and the seat belt 5 can be easily attached.

  By the way, when the plate portion 3 is inserted to a predetermined depth from the insertion port 15 as described above, the first engagement portion 53 is engaged with the inner peripheral edge on the front end side of the opening portion 4 of the plate portion 3, and The intermediate portion 57 of the second engaging portion 55 is engaged with the notch portion 3a to hold the plate portion 3, but the plate portion 3 does not stop at a predetermined position and is inserted excessively deeply. It may be done.

  In this case, the intermediate portion 57 of the second engaging portion 55 is pressed against the tip of the plate portion 3, and the second engaging portion 55 rides on the tip side surface of the plate portion 3 as shown in FIG. However, since the front end portion 58 of the second engagement portion 55 extends in parallel along the plate portion insertion direction A, the front end portion edge 58 a of the second engagement portion 55 is the side surface of the plate portion 3. Can be prevented, and the plate portion 3 is hardly damaged. In addition, when the front-end | tip part 58 of the 2nd engaging part 55 becomes the form bent in the direction away from the insertion path | route R of the plate part 3, as shown by the imaginary line of FIG. Since the bent portion between the intermediate portion 57 and the side surface of the plate portion 3 abuts, the plate portion 3 is prevented from being damaged by the end edge 58a of the second engaging portion 55 in this case. In this state, when the seat belt 5 is slightly pulled, the plate spring portion 50 that has been bent and bent on the side surface of the plate portion 3 is elastically restored, and the first inner edge on the front end side of the opening portion 4 of the plate portion 3 is restored. The engaging portion 53 is engaged, the intermediate portion 57 of the second engaging portion 55 is engaged with the notch 3 a at the tip of the plate portion 3, and the plate portion 3 is prevented from being detached.

  Further, when the plate portion 3 of the tongue 1 held by the resin holder 10 is pulled out from the insertion port 15 in order to restrain the occupant's body with the seat belt 5, the end edge 58 a of the second engagement portion 55 is not removed. Since the contact with the side surface of the plate portion 3 is prevented, the plate portion 3 is hardly damaged, and there is no frictional resistance due to the tip end edge 58a of the second engagement portion 55 coming into contact with the plate portion 3. Therefore, the plate part 3 can be pulled out smoothly.

  Note that the plate portion 3 can also be prevented from being damaged by extending the intermediate portion 57 of the second engagement portion 55 long. That is, since the middle portion 57 of the second engagement portion 55 extends long, the second engagement portion 55 rides on the side surface of the plate portion 3 unless the plate portion 3 is inserted too deeply from the insertion port 15. Therefore, damage to the plate portion 3 is prevented.

1 tongue 2 connecting portion 3 plate portion 4 opening portion 5 seat belt 10 resin holder 15 insertion port 17 wall portion 30 clip 31 fixing portion 33 bending portion 35 outer plate portion 36 engaging claw 40 inner plate portion 43 tip edge portion 45 both side edges Part 50 leaf spring part 51 inclined part 53 first engaging part 55 second engaging part 58 tip part

Claims (5)

Seat belt for detachably holding a connecting portion connected to a seat belt, a plate portion extending from the connecting portion, and a tongue having an opening formed in the plate portion at a predetermined position of the vehicle The tongue holding structure of
A resin holder attached to a predetermined location on the inner wall of the vehicle, and a clip attached to the inside of the insertion opening of the resin holder;
The clip has a fixing part to the resin holder, and a leaf spring part extended from the fixing part so as to enter an insertion path of the plate part of the tongue,
The leaf spring portion extends from the fixed portion toward the tongue insertion direction so as to enter the opening of the plate portion while approaching the insertion path, and the tip of the slope portion A first engagement portion that is bent in a direction opposite to the inclination direction of the inclined portion toward a direction away from the insertion path and engages with a peripheral edge on the front end side of the opening of the plate portion, and the first engagement It is further extended from the tip of the joint portion and is bent obliquely outward so as to be in a direction opposite to the first engagement portion in a direction approaching the insertion path, and is attached to the tip of the plate portion. A tongue holding structure for a seat belt, comprising: a second engaging portion to be engaged. Seat belt for detachably holding a connecting portion connected to a seat belt, a plate portion extending from the connecting portion, and a tongue having an opening formed in the plate portion at a predetermined position of the vehicle The tongue holding structure of
A resin holder attached to a predetermined location on the inner wall of the vehicle, and a clip attached to the inside of the insertion opening of the resin holder;
The clip has a fixing part to the resin holder, and a leaf spring part extended from the fixing part so as to enter an insertion path of the plate part of the tongue,
The leaf spring portion extends from the fixed portion toward the tongue insertion direction so as to enter the opening of the plate portion while approaching the insertion path, and the tip of the slope portion A first engagement portion that is bent in a direction opposite to the inclination direction of the inclined portion toward a direction away from the insertion path and engages with a peripheral edge on the front end side of the opening of the plate portion, and the first engagement A second engagement that extends further from the distal end of the joint portion and is bent in a direction opposite to the first engagement portion in a direction approaching the insertion path, and engages with the distal end of the plate portion. And a tongue holding structure for a seat belt , wherein a tip of the inclined portion does not contact the resin holder . The inclined portion of the inclination angle θ1 with respect to the insertion direction of the plate portion, the plate portion of the second engaging portions with respect to the insertion direction inclination angle θ2 of claim 1 or 2, wherein is set to be smaller than Seat belt tongue retention structure. The distal end of the second engagement portion, or extending along the insertion direction of the plate portion, any one of claims 1 to 3 of which are bent in a direction away from the insertion path for the same insertion direction 1 tongue holding structure of the seat belt according to One. The resin holder has a wall portion extending toward the insertion direction on the peripheral edge on the back side of the insertion port, and the fixing portion of the clip elastically holds the inner and outer surfaces of the wall portion. The outer plate portion and the inner plate portion are connected to each other through a bent portion, and the outer plate portion is formed with an engaging claw that engages with the outer surface of the wall portion. A distal end edge portion to which the base portion of the leaf spring portion is coupled; and both side edge portions extending from both sides of the distal end edge portion and coupled to the outer plate portion via the bent portion. The tongue holding structure for a seat belt according to any one of claims 1 to 4 .