JP6459933B2 - Tether clip and pillar garnish mounting structure - Google Patents

Description

  The present invention relates to a tether clip and a pillar garnish attachment structure (the “attachment structure” may be referred to as an “attachment device”).

  Patent document 1 is disclosing the conventional pillar garnish attachment structure using the conventional tether clip. The tether clip and the pillar garnish mounting structure of Patent Document 1 are the comparison shown in FIGS. 10 to 12 (“comparison” may be referred to as “reference”. The same applies hereinafter) tether clip 110 and comparative pillar garnish using the same. As shown in the attachment structure 102, it has the following structure. The comparative tether clip 110 and the comparative pillar garnish mounting structure 102 are not conventionally known in that they have a first-stage anchor 156.

  In order to secure the length of the tether 120 in a limited space, the longitudinal direction L of the tether 120 is directed to the longitudinal direction of the pillar garnish 170, and in order to facilitate the deformation of the tether 120, a rectangular shape of the tether 120 is used. The extending direction of the long axis 134 of the cross section is oriented in a direction perpendicular to the longitudinal direction L of the tether 120. Further, the length of the long side 130 of the rectangular cross section of the tether 120 is shorter than the length of the short side 184 of the rectangular garnish hole 180 over the entire length of the tether 120.

JP-A-2015-140118

  However, the following problems occur in the comparison clip 110 and the comparison pillar garnish mounting structure 102 using the same.

(A) When CSA (abbreviation of curtain airbag, not shown) is deployed, when tether 120 receives a load from the edge of garnish hole 180 in the extending direction of long axis 134 of the rectangular tether, As a result, a large load is applied, and the tether 120 is twisted by the edge of the garnish hole 180, and the tether 120 may be brittlely fractured at an extremely low temperature.
(B) When the CSA is deployed, the tether clip 110 is rotated around the clip center axis 110a by the load applied from the edge of the garnish hole 180, and the longitudinal direction of the anchor 150 and the longitudinal direction of the garnish hole 180 can be detached (disengaged). There is sex.
(C) Depending on the amount of rotation of the tether clip 110, the edge of the garnish hole 180 may be applied to the first-stage anchor 156 or the second-stage anchor 150. When the first-stage anchor 156 is applied, the length of the tether 120 may be insufficient depending on the vehicle type. Further, when the anchor 156 of the first stage is applied, the energy absorbing function when the tether 120 is extended (“extension” may be referred to as “extension”; hereinafter the same) is reduced, and the pillar garnish 170 is moved to. May increase the concentration of the load and may cause harm to the pillar garnish 170. Even in the tether 120 where the first-stage anchor 156 is not provided, if the edge of the garnish hole 180 is caught in the middle of the tether 120, the hooked portion acts in the same way as the first-stage anchor 156, and the same problem occurs. .

The purpose of the present invention is to suppress brittle fracture of the tether due to twisting during CSA deployment at low temperature, to suppress the rotation of the tether against the pillar garnish during the CSA deployment, to secure the tether length in a limited space, when the tether extends It is an object of the present invention to provide a tether clip having a tether that can achieve at least one of securing an energy absorbing function of the above and reducing the risk of harming the pillar garnish, and a pillar garnish mounting structure using the tether clip.

  The tether clip of the present invention that achieves the above object and the pillar garnish mounting structure using the same can take the following modes. In addition, the code | symbol with a parenthesis respond | corresponds to the member number which appears in drawing.

In the first aspect of the present invention, the tether clip (10) includes a root portion (22) connected to the seat portion (12), a tip portion (26) connected to the anchor (50), and a root portion (22). And a tether (20) extending longitudinally with an intermediate portion (24) extending between the tip (26), the longitudinal direction (L) of the tether (20) being in the longitudinal direction of the pillar garnish (70) It is assembled to the pillar garnish (70) at the rectangular garnish hole (80) portion, and used to attach the pillar garnish (70) to the pillar (90).
At least a part of the root part (22) and the intermediate part (24) is gently curved.
The shape of the tether cross section perpendicular to the tangential direction of the tether at any tether position separated from the connection portion of the tether (20) to the seat portion (12) along the tether (20) is an elongated cross section, and the root portion The shape of the tether cross section at (22) and the intermediate portion (24) is wider and thinner than the shape of the tether cross section at the tip (26).
The length of the long side (30) of the tether cross section in the root portion (22) and the intermediate portion (24) is longer than the length of the short side (84) of the garnish hole.
The extending direction of the major axis (34) of the tether cross section in the root part (22) and the intermediate part (24) is inclined from the direction orthogonal to the major axis (86) of the garnish hole (80).

In the second aspect of the present invention, in the first aspect, the tether (20) is farthest from the anchor (50) from the connection of the tether (20) to the root part (22) of the root part (22) and the intermediate part (24). To the middle part, the first ridge line (28a) on the side far from the anchor (50) and the second ridge line (28b on the side close to the anchor (50) are arranged at the end of the major axis (34) in the tether cross section. ) And the perspective relationship between the first ridge line (28a) and the second ridge line (28b) from the anchor (50) is the total length of the first ridge line (28a) and the second ridge line (28b). Maintained over time and not inverted. From the part of the tether (20) farthest from the anchor (50) of the intermediate part (24) to the connecting part to the tip part (26) of the intermediate part (24), the long axis (34) of the tether cross section A third ridge line (28c) on the side far from the seat (12) and a fourth ridge line (28d) on the side close to the seat (12) are provided at the end in the extending direction, and the third ridge line (28c ) And the fourth ridge line (28d) from the seat (12), the perspective relationship is maintained over the entire length of the third ridge line (28c) and the fourth ridge line (28d) and does not reverse.
The first ridge line (28a) and the third ridge line (28c) are smoothly connected, and the second ridge line (28b) and the fourth ridge line (28d) are smoothly connected.

  According to a third aspect of the present invention, in the second aspect, the intermediate portion (24) is provided on the anchor (50) side of the upper curved portion that is convex in a direction away from the seat portion (12) and the upper curved portion. By having the downward curved portion that is convex toward the extension of the seat portion (12), the sum of the length of the first ridge line (28a) and the length of the third ridge line (28c) is It is equal to or substantially equal to the sum of the length of the second ridge line (28b) and the length of the fourth ridge line (28d).

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a garnish hole (in the extending direction of the long axis (34) of the tether cross section in the root portion (22) of the tether (20) ( The inclination angle from the direction orthogonal to the major axis (86) of 80) is in the range of 40 degrees ± 20 degrees.

  In the fifth aspect of the present invention, in any one of the first to fourth aspects, the length of the long side (30) of the tether cross section at the tip (26) of the tether (20) is the length of the garnish hole ( 80) shorter than the length of the short side (84).

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, an anchor (50) is attached to an end of the intermediate portion (24) of the tether (20) on the tether tip portion (26) side. A guide plate (38) protruding in a direction perpendicular to the direction parallel to the extending direction of) is provided.

  The pillar garnish attachment structure (2) of the seventh aspect of the present invention is the tether clip (10) of any one of the first to sixth aspects, with the tether longitudinal direction (L) oriented in the pillar garnish longitudinal direction. A pillar garnish (70) to which the tether clip (10) is assembled, and a pillar (90) to which the pillar garnish (70) to which the tether clip (10) is assembled is attached using the tether clip (10). . In the state where the tether clip (10) is assembled to the pillar garnish (70), the extending direction of the long axis (34) of the elongated cross section of the tether at the root (22) of the tether (20) is a rectangular garnish hole ( It is inclined from the direction orthogonal to the long axis (86) of 80).

According to the first aspect, there is an effect that at least one of the following (a), (b), (c), (d), and (e) is achieved.
(A) Since the longitudinal direction of the tether is directed to the longitudinal direction of the pillar garnish, the tether length can be secured within a limited space.
(B) Since the shape of the tether cross-section at the root portion and the intermediate portion is wide and thin, the tether becomes more flexible with respect to the load from the garnish hole edge, and the load from the garnish hole edge is received. Can do. As a result, the tether is less likely to be twisted due to the load from the edge of the garnish hole, and the brittle fracture of the tether due to the twist at a low temperature can be suppressed.
(C) Since the length of the long side of the tether cross section is made longer than the length of the short side of the garnish hole, the rotation of the tether cross section within a predetermined value in the garnish hole can be suppressed.
(D) Since the extending direction of the long axis of the tether cross section is tilted from the direction orthogonal to the long axis of the garnish hole, even if the long side length of the tether cross section is longer than the short side length of the garnish hole The tether can be inserted through the garnish hole. In addition, when a large load is applied to the tether in the direction perpendicular to the major axis of the garnish hole (such as in the initial stage of CSA deployment), the major axis of the tether section bends in a direction further inclined from the direction perpendicular to the major axis of the garnish hole. Thus, the tether can receive a load from the garnish hole edge. As a result, brittle fracture of the tether due to twisting at low temperatures can be suppressed, and the impact on the edge of the garnish hole can be mitigated to reduce the risk of harming the pillar garnish. Furthermore, since the major axis of the tether cross section bends in a direction further inclined from the direction perpendicular to the major axis of the garnish hole, the separation from the garnish body is improved, thereby facilitating the formation of the CSA development gap.
(E) Since the intermediate portion has a curved portion that is gently curved along the tether longitudinal direction, the tether length can be secured. In addition, the intermediate portion is supple, the impact force on the edge of the garnish hole can be reduced, and the risk of harming the garnish can be reduced.

  According to the second aspect, the perspective relationship between the first ridge line and the second ridge line from the anchor is maintained over the entire length of the first ridge line and the second ridge line, and is not reversed. The perspective relationship from the seat portion of the ridge line is maintained over the entire length of the third ridge line and the fourth ridge line and is not reversed, the first ridge line and the third ridge line are smoothly connected, and the second ridge line And the fourth ridge line are smoothly connected. Thereby, unnecessary rotation of the tether when the tether is extended is reduced, and the tether can be smoothly extended until the anchor hits the edge of the garnish hole.

According to the third aspect, since the sum of the length of the first ridge line and the length of the third ridge line is equal to or substantially equal to the sum of the length of the second ridge line and the length of the fourth ridge line, When the tether is extended, the stress concentration occurring on the ridge line on the side where the ridge line length of the tether is short is alleviated, and brittle fracture at a low temperature of the tether is further suppressed.

  According to the fourth aspect, since the extending direction of the major axis of the tether cross section is in the range of 40 degrees ± 20 degrees from the direction perpendicular to the major axis of the garnish hole, the above-described effect of the first aspect can be achieved. Of these, the effect (d) can be obtained with certainty.

  According to the fifth aspect, since the length of the long side of the tether cross section at the tip of the tether is shorter than the length of the short side of the garnish hole, the tip of the anchor and the tether is positioned at the garnish hole. Can be rotated 90 degrees with respect to the garnish hole, and the tether clip can be assembled to the pillar garnish.

  According to the sixth aspect, since the guide plate protruding in the direction orthogonal to the longitudinal direction of the anchor is provided in the portion connected to the tether tip portion of the intermediate portion of the tether, the tether is twisted. Regardless, the anchor can be reliably applied to the garnish hole edge.

  According to the seventh aspect, since the tether clip of the first aspect is used, the above-mentioned (a), (b), (c), obtained by the tether clip of the first aspect also in the pillar garnish mounting structure At least one of the effects (d) and (e) can be obtained.

It is a perspective view of the tether clip concerning one example of the present invention. It is the perspective view seen from the direction different from FIG. 1 of the tether clip of FIG. FIG. 2 is a front view of the tether clip of FIG. 1 viewed in a direction perpendicular to the tether longitudinal direction. FIG. 4 is a bottom view of the tether clip of FIG. 3. It is a top view of the pillar garnish attachment structure which assembled | attached the tether clip of FIG. 4 to the pillar garnish. It is sectional drawing of the pillar garnish attachment structure which follows the 6-6 line of FIG. FIG. 7 is an end view of a cross section of the pillar garnish mounting structure taken along line 7-7 in FIG. 6. It is a perspective view of the cross section of the pillar garnish attachment structure of FIG. FIG. 9 is a cross-sectional view of the pillar garnish mounting structure of FIG. 6 taken along line 9-9 of FIG. It is a perspective view of a comparative tether clip. FIG. 11 is a cross-sectional view of a pillar garnish mounting structure in which the comparative tether clip of FIG. 10 is assembled to a conventional pillar garnish, cut along a plane that passes through the central axis of the tether clip leg and is orthogonal to the tether longitudinal direction. It is sectional drawing which follows the 12-12 line of FIG. 11 of the pillar garnish attachment structure of FIG.

  A tether clip (hereinafter also simply referred to as “clip”) 10 according to an embodiment of the present invention and a pillar garnish mounting structure 2 using the same will be described with reference to FIGS. The main part of the clip 10 and the pillar garnish attachment structure 2 are the same.

First, the structure of the tether clip 10 and the pillar garnish mounting structure 2 will be described.
As shown in FIGS. 1 to 4, the tether clip 10 is used to attach the pillar garnish 70 to the pillar 90. The tether clip 10 includes a seat 12, a tether 20 connected to the seat 12, and an anchor 50 connected to the tether 20. The tether clip 10 is further connected to the seat portion 12 and is engaged with the engagement holding portion 40 that rises from the seat portion 12 on the same side as the tether 20 (in the illustrated example, a pair of engagement holding portions 40 are provided. 40 is sufficient if there is at least one), a leg 14 connected to the seat 12 and extending away from the seat 12 on the opposite side of the tether 20, and a leg 14 provided elastically with respect to the clip center axis 10a. A pair of locking claws 16 that can be advanced and retracted (in the example shown, a pair of locking claws 16 are provided, but at least one locking claw 16 may be provided), and a side opposite to the tether 20 connected to the seat portion 12. And the wobble suppressing elastic piece 60 extending in a direction away from the seat portion 12.

  In FIG. 6, the tether clip 10 is made of a flexible resin material. The resin material is, for example, polyhexamethylene adipamide. However, other resin materials may be used as long as they are flexible and have a necessary strength. The pillar garnish 70 is made of the tether clip 10 or a harder resin material. The pillar 90 is made of a steel plate. Between the pillar garnish 70 and the pillar 90, a curtain airbag (not shown, hereinafter also referred to as CSA. CSA is an abbreviation for Curtain Shield Airbag) is disposed.

  As shown in FIGS. 5 to 9, the tether clip 10 is assembled to the pillar garnish 70 at a portion of a rectangular garnish hole 80 provided in the bottom wall 74 of the tether storage portion 72 of the pillar garnish 70. In this case, the longitudinal direction of the garnish hole 80 is directed to the longitudinal direction of the pillar garnish 70. The pillar garnish 70 to which the tether clip 10 is assembled is attached to the pillar 90 at a portion of a clip attachment hole 92 provided in the pillar 90 with the longitudinal direction of the pillar garnish 70 being directed to the longitudinal direction of the pillar 90.

  As can be seen from FIGS. 3 and 6, when the tether clip 10 is assembled to the pillar garnish 70, the edge of the garnish hole 80 in the bottom wall 74 of the tether storage portion 72 is the bulging portion of the engagement holding portion 40. 44 and the seat 12 are held. In a state where the pillar garnish 70 with the tether clip 10 assembled is attached to the pillar 90, the edge of the clip attachment hole 92 of the pillar 90 has a wobble suppressing elastic piece 60 and a pair of locking claws 16 provided on the leg 14. Held between.

  When the vehicle collides or rolls over, the CSA expands and deploys in a short time, and the pillar garnish 70 moves away from the pillar 90 in response to the load from the CSA. At this time, the edge portion of the garnish hole 80 moves from the rising portion 42 of the engagement holding portion 40 to the bulging portion 44 side, elastically deforms the bulging portion 44, passes through the bulging portion 44, and the pillar garnish 70 is anchored. The tether 20 extends until it hits 50, and a gap is formed between the pillar garnish 70 and the pillar 90 where the CSA can expand and deploy. Further, the tether clip 10 stops the pillar garnish 70 from moving in the direction away from the pillar 90 more than the state in which the pillar garnish 70 hits the anchor 50, and suppresses the scattering of the pillar garnish 70 in the vehicle compartment direction.

  As shown in FIGS. 3 to 6, the tether 20 includes a root portion 22 connected to the seat portion 12, a tip portion 26 connected to the anchor 50, and an intermediate portion extending between the root portion 22 and the tip portion 26. 24. The tether 20 has a tether longitudinal direction L extending along one surface orthogonal to the seat portion 22, and at least a part of the entire length of the tether 20 is curved along the one surface.

In a state where the tether clip 10 is assembled to the pillar garnish 70, the tether longitudinal direction L is directed to the longitudinal direction of the pillar garnish 70, that is, the longitudinal direction of the garnish hole 80. The tether storage portion 72 has three sides, two sides extending in the longitudinal direction of the pillar garnish 70 out of the four sides of the rectangular bottom wall 74 and one side out of two sides extending in the direction perpendicular thereto. A side wall 76 extends between the design wall of the garnish and the remaining one side has no side wall and serves as a tether storage portion opening 78. The tip portion 26 and the anchor 50 of the tether 20 extending in the tether longitudinal direction L are inserted through the tether storage portion opening 78 and the tether storage portion 7.
2 outside. This ensures a tether length in a limited space. As a result, a tether length that can form a sufficient gap between the pillar garnish 70 and the pillar 90 during the CSA deployment is secured.

  In the comparison clip 110 shown in FIG. 12, even when the tether length is secured, the tether 120 can be rotated in the garnish hole 180 and the tether clip 110 can be assembled to the pillar garnish 170. The long side length L130 of the cross section of 120 is made smaller than the short side length L184 of the garnish hole 180, while the short side length L132 of the cross section of the tether 120 is made large in order to obtain strength. As a result, the following problem may occur. The load received by the tether 120 from the edge of the garnish hole 180 during the CSA development cannot be received, and the load received by the tether 120 becomes large, and the tether 120 is likely to be twisted. The tether 120 breaks brittlely due to twisting at a low temperature. The energy absorption function when the tether 120 extends is reduced. Thereby, the danger to the edge of the garnish hole 180 of the pillar garnish 170 is increased. In order to eliminate or reduce these fears, the tether clip 10 of the present invention has the following structure.

The shape of the tether cross section seen at a surface perpendicular to the tangential direction of the tether 20 at an arbitrary tether portion separated from the seat portion 12 along the shape of the tether 20 is an elongated cross section.
Further, the shape of the tether cross section at the root portion 22 and the intermediate portion 24 is wider and thinner than the shape of the tether cross section at the distal end portion 26. However, the shape of the tether cross section at the distal end portion 26 is equal to or substantially equal to the shape of the tether cross section (in the total length of the tether) of the comparison clip 110.

  The length L30 of the long side 30 of the tether cross section in the root portion 22 and the intermediate portion 24 is longer than the length L130 of the long side 130 of the tether cross section of the comparison clip 110, and the short side of the tether cross section in the base portion 22 and the intermediate portion 24. The length L32 of 32 is shorter than the length L132 of the short side 132 of the tether cross section of the comparison clip 110. As a result, the shape of the tether cross section in the root portion 22 and the intermediate portion 24 is a flat band shape than the shape of the tether cross section of the comparison clip 110.

  As shown in FIG. 9, the length L30 of the long side 30 of the tether cross section in the root portion 22 and the intermediate portion 24 is longer than the length L84 of the short side 84 of the garnish hole 80. Therefore, when the extending direction of the major axis 34 of the tether cross section is directed to the extending direction of the minor axis (axis orthogonal to the major axis) 36 of the garnish hole 80, the tether 20 cannot be disposed in the garnish hole 80.

  In order to arrange the tether 20 in the garnish hole 80, as shown in FIG. 9, the extending direction of the long axis 34 of the tether cross section in the root portion 22 and the intermediate portion 24 is a direction orthogonal to the long axis 86 of the garnish hole 80. It is inclined by an angle A from (the direction in which the short axis 88 of the garnish hole 80 extends). Accordingly, the tether 20 is twisted around the center of the cross section of the tether 20. The tether 20 is curved in a direction parallel to the plane along which the tether 20 extends, and is twisted around the center of the cross section of the tether 20. That is, the tether 20 has bending and twisting. On the other hand, the tether 120 of the comparison clip 110 is not twisted around the center of the cross section of the tether 120. That is, the tether 120 of the comparison clip 110 can only be bent.

  As shown in FIG. 1 to FIG. 3, at least a part of the root part 22 and the intermediate part 24 is gently curved along the tether 20, and other parts (a part near the seat part 12 of the root part 22 and The intermediate portion 24 may extend linearly at a portion close to the distal end portion 26.

In the free state of the tether 20 where no load is applied to the tether 20, the tether 20 is connected to the root portion 22 and the intermediate portion 24 from the connecting portion to the root portion 22 to the intermediate portion 24a farthest from the anchor 50. The first ridge line 28a on the side far from the anchor 50 and the second ridge line 28b on the side close to the anchor 50 are provided at the end in the extending direction of the major axis 34, and the first ridge line 28a and the second ridge line 28b are provided. The perspective relationship from the anchor 50 is maintained over the entire length of the first ridge line 28a and the second ridge line 28b and is not reversed.

  In the free state of the tether 20 where no load is applied to the tether 20, the tether 20 has a tether cross-section from the intermediate portion 24a farthest from the anchor 50 of the intermediate portion 24 to the connection portion to the distal end portion 26 of the intermediate portion 24. At the end of the long axis 34 in the extending direction, there is a third ridge line 28c far from the seat 12 and a fourth ridge line 28d near the seat 12, and the third ridge line 28c and the fourth ridge line The perspective relationship of the 28d from the seat 12 is maintained over the entire length of the third ridge line 28c and the fourth ridge line 28d and is not reversed.

  The first ridge line 28a and the third ridge line 28c are connected smoothly (without a step), and the second ridge line 28b and the fourth ridge line 28d are connected smoothly (without a step).

  The sum of the length of the first ridge line 28a and the length of the third ridge line 28c is close to the sum of the length of the second ridge line 28b and the length of the fourth ridge line 28d, and is equal or nearly equal to each other. . In the tether 20, an upper curved portion that curves upwardly (in a direction away from the seat portion 12) is formed in a portion of the intermediate portion 24 near the base portion 22, and then the tip portion 26 of the intermediate portion 24. A downward curved portion that is curved in a convex shape toward the lower portion (in the direction approaching the extended surface of the seat portion 12) is formed in the portion on the side closer to the head. The outer peripheral edge portion of the upper bending portion is connected to the inner peripheral edge portion of the lower bending portion, and the inner peripheral edge portion of the upper bending portion is connected to the outer peripheral edge portion of the lower bending portion. Thereby, the sum of the length of the first ridge line 28a and the length of the third ridge line 28c is equal to or substantially equal to the sum of the length of the second ridge line 28b and the length of the fourth ridge line 28d.

  The inclination angle A from the direction perpendicular to the long axis 86 of the garnish hole 80 in the extending direction of the long axis 34 of the tether cross section at the root portion 22 of the tether 20 is preferably in the range of 40 degrees ± 20 degrees. The reason why the range of 40 ° ± 20 ° is set is that when the inclination angle A exceeds 60 °, the stress generated on the inner peripheral side of the bend of the tether 20 becomes too large when the tether 20 extends, and the inclination angle A is 20 This is because if the angle is smaller than that, the problem of twisting of the tether 120 of the comparison clip 110 in FIG. 12 is likely to occur.

  The length of the long side 30 of the tether cross section at the tip portion 26 of the tether 20 is shorter than the length of the short side 84 of the garnish hole 80. As a result, the tether clip 10 can be assembled to the pillar garnish 70. In assembly, the longitudinal direction of the anchor 50 is directed in the extending direction of the long axis 86 of the garnish hole 80, the anchor 50 is inserted through the garnish hole 80, the anchor 50 is inserted into the tether storage portion 72, and the distal end portion 26 of the tether 20. Is located in the garnish hole 80. In this state, the tip portion 26 of the tether 20 can rotate around the axis of the tip portion 26 in the garnish hole 80, so the anchor 50 is rotated 90 degrees. Next, the tether 20 is inserted into the tether storage portion 72, and the assembly is completed with the engagement holding portion 40 holding the edge of the garnish hole 80. In this state, the anchor 50 protrudes from the tether storage portion opening 78 to the outside of the tether storage portion 72.

  A pair of guide plates 38 projecting in a direction perpendicular to a direction parallel to the extending direction of the anchor 50 (longitudinal direction of the anchor 50) is provided at the end of the intermediate portion 24 of the tether 20 on the tether tip portion 26 side. ing. A pair of guide plates 38 are provided substantially symmetrically with (in between) the intermediate portion 24 of the tether 20.

The anchor 50 includes an anchor main body 52 extending in a direction perpendicular to the tether longitudinal direction L and parallel to the seat portion 12, and a pair of anchor elastic pieces extending between the anchor main body 52 and the tether distal end portion 26 in both side spaces of the tether distal end portion 26. 54. The anchor body 52 extends in the anchor longitudinal direction, and the anchor elastic piece 54 extends in a direction orthogonal to the anchor longitudinal direction. The anchor elastic piece 54 extends along the same plane as the guide plate 38 of the tether 20. The anchor elastic piece 54 and the guide plate 38 are separated from each other but are opposed to each other.

  Since the cross section of the tether 20 is formed into a flat band shape at the root portion 22 and the intermediate portion 24, the tether 20 is in a state where the ridge line in the extending direction of the long axis 34 of the tether cross section hits the edge of the long side 82 of the garnish hole 80. Easily bends and twists elastically around the center of the tether cross section. However, since the bending rigidity and torsional rigidity are high in the tether portion where the guide plate 38 is provided, bending deformation and torsional deformation are suppressed. Further, since the anchor elastic piece 54 and the guide plate 38 are opposed to each other, when the edge of the garnish hole 80 slides on the tether 20 and moves away from the seat 12 when the CSA is deployed, The edge of the hole 80 can be transferred from the guide plate 38 to the anchor elastic piece 54 without being caught. As a result, the anchor elastic piece 54 surely enters the garnish hole 80 so that the anchor 50 can engage with the edge of the garnish hole 80, and the anchor elastic piece 54 prevents the anchor 50 from rotating relative to the garnish hole 80. When the longitudinal direction of 50 and the extending direction of the long axis 86 of the garnish hole 80 coincide, the passage of the anchor 50 through the edge of the garnish hole 80 and the scattering of the pillar garnish 70 are suppressed.

  When the tether clip 10 is attached to the pillar 90 by inserting the leg 14 of the tether clip 10 into the clip attachment hole 92 of the pillar 90, the wobble suppression elastic piece 60 moves the edge of the clip attachment hole 92 of the pillar 90 to the leg 14. The locking claw 16 and the wobbling suppression elastic piece 60 are elastically sandwiched to suppress wobbling of the tether clip 10 with respect to the pillar 90. The direction in which wobbling of the tether clip 10 is desired to be suppressed by the wobbling suppression elastic piece 60 is rotation in a direction along a plane perpendicular to the tether longitudinal direction L.

  The wobble suppressing elastic piece 60 is away from the clip center axis 10a of the seat surface (the lower seat surface of the seat portion 12 in FIG. 2) of the seat portion 12 facing the mating panel (pillar) 90 to which the clip 10 is attached. It is integrally connected to the seat 12 at the site. The wobble suppressing elastic piece 60 is a straight line toward the pillar 90 substantially perpendicular to the lower seating surface of the seat 12 in a free state of the wobble suppressing elastic piece 60 (a state where no load is applied to the wobble suppressing elastic piece 60). It has the linear part 62 extended in this. Note that the linear portion 62 may be a curved portion having a linear shape as long as the ground contact point to the pillar 90 of the wobble suppressing elastic piece 60 is not different from the linear shape. In the illustrated example and the following description, the case of a linear portion will be described.

  The wobbling suppression elastic piece 60 is formed by attaching the tether clip 10 to the tether longitudinal direction L at the end of the wobble suppression elastic piece 60 on the opposite side (front end side) to the end connected to the lower seating surface of the seat 12. When viewed in the orthogonal direction, it may have a bent portion 64 that is bent from the linear portion 62 and then extends in parallel with the seat portion 12 in a free state of the wobble suppressing elastic piece 60. However, the wobble suppression elastic piece 60 may not have the bent portion 64. The illustrated example shows a case where the wobble suppressing elastic piece 60 has a bent portion 64.

  The lower seat surface of the seat portion 12 is formed in a rectangular shape in a direction along a surface orthogonal to the clip center axis 10a. One side of the lower seating surface of the seat 12 is oriented in the tether longitudinal direction L. The wobble suppressing elastic piece 60 is provided at four rectangular corners of the lower seating surface of the seat portion 12.

When the tether clip 10 is viewed in the tether longitudinal direction L in the free state of the wobble suppressing elastic piece 60, the linear portion 62 of the wobble suppressing elastic piece 60 extends completely perpendicular to the lower seating surface of the seat portion 12. Further, the linear portion 62 of the wobble suppression elastic piece 60 is completely on the lower seating surface of the seat portion 12 when the tether clip 10 is viewed in a direction orthogonal to the tether longitudinal direction L in the free state of the wobble suppression elastic piece 60. It may be inclined at a predetermined angle in the range of 0-15 degrees (greater than 0 degrees and 15 degrees or less) from the direction perpendicular to the center of the clip. However, the linear portion 62 may extend in a direction completely perpendicular to the lower seating surface of the seat portion 12 when the tether clip 10 is viewed in the tether longitudinal direction L in the free state of the wobble suppressing elastic piece 60. Alternatively, it may be inclined outward from a direction completely perpendicular to the lower seating surface of the seat 12.

  The leg 14 is connected to a seat surface opposite to the seat surface to which the tether 20 of the seat portion 12 is connected, and extends in a direction away from the seat portion 12 on the opposite side of the tether 20. The pair of locking claws 16 are coupled to the leg 14 at a coupling portion at one end of the locking claw 16 and are separated from the leg 14 by an inverted U-shaped slit except for the coupling portion. As a result, the locking claw 16 can swing in the direction of approaching and moving away from the clip center axis 10a around the coupling portion. A claw operation portion 18 extending in a direction orthogonal to the clip center axis 10a and extending away from the clip center axis 10a is provided at the distal end of the locking claw 16.

  When the pillar garnish 70 to which the tether clip 10 is assembled is assembled to the pillar 90, the leg 14 of the tether clip 10 is directed toward the pillar 90 and the leg 14 is pushed into the clip mounting hole 92. At this time, the pair of locking claws 16 are pushed toward the clip center axis 10 a by the edge of the clip mounting hole 92, the locking claws 16 pass through the clip mounting hole 92, and the pair of locking claws 16 are inserted immediately after insertion. The edge of the clip attachment hole 92 is sandwiched between the locking claw 16 and the wobble suppressing elastic piece 60 by elastically returning to the original position.

  The centers of the pair of engagement holding portions 40 are offset to the side away from the anchor 50 in the tether longitudinal direction L from the central axis of the leg 50 and in a direction parallel to the seat portion 12.

  Since the leg 14 is pushed into the clip mounting hole 92 of the pillar 90, the center of the pair of engagement holding portions 40 is in the tether longitudinal direction L with respect to the central axis of the clip mounting hole 92 and opposite to the curve of the tether 20. It is offset to the side (ie, away from the tether housing opening 78).

  The bottom wall 74 of the tether storage part 72 is formed at a garnish hole 80 through which the pair of engagement holding parts 40 are inserted, and a tether curve direction end of the garnish hole 80 (the tether longitudinal direction L and the tether storage part opening 78 side end). It has a bridge portion 74a that is located between the opposing edge portions (long edge portions of the garnish hole 80) that are positioned and extend in the tether longitudinal direction L. The bridge portion 74a constitutes a part of the bottom wall 74. The center of the pair of engagement holding portions 40 is offset in the tether longitudinal direction L with respect to the central axis of the clip mounting hole 92 and on the side opposite to the curve of the tether 20, so that the bridge is not as offset. The width W of the portion 74a (distance between both side surfaces of the bridge portion 74a when cut along a surface along the tether longitudinal direction L) W increases (FIG. 6). Therefore, the cross-sectional area of the bridge portion 74a is increased, which is advantageous in terms of strength, and the hot water flow in the bridge portion 74a at the time of molding is improved, so that formation of welds (defects) is suppressed. This reliably suppresses breakage at the bridge portion 74a during CSA deployment.

  When there is a margin in the stress in the bridge portion 74a and it is desired to further suppress the formation of welds, a recess 74b is formed in the bridge portion 74a as shown in FIG. The site may be removed.

  The pillar garnish mounting structure 2 includes the tether clip 10 described above, the pillar garnish 70 in which the tether clip 10 is assembled with the tether longitudinal direction L facing the pillar garnish longitudinal direction, and the pillar garnish 70 in which the tether clip 10 is assembled. And a pillar 90 attached using the tether clip 10.

  The tether clip 10 is assembled to the bottom wall 74 of the tether storage portion 72 of the pillar garnish 70 at the site of the garnish hole 80. After assembly, the tether 20 is inserted through the garnish hole 80, and the anchor 50 protrudes from the tether storage portion opening 78 to the outside of the tether storage portion 72.

  In a state where the tether clip 10 is assembled to the pillar garnish 70, the extending direction of the long axis 34 of the elongated section of the tether at the root portion 22 and the intermediate portion 24 of the tether 20 is orthogonal to the long axis 86 of the rectangular garnish hole 80. It is tilted from the direction to do. Further, the tether 20 is curved along a surface extending in the tether longitudinal direction L.

  Accordingly, the tether 20 is curved along a surface extending in the tether longitudinal direction L, and the tether cross section at the positions of the root portion 22 and the intermediate portion 24 of the tether 20 is twisted around the center of the tether cross section. .

Next, functions and effects of the tether clip 10 and the pillar garnish mounting structure 2 will be described.
First, since the tether longitudinal direction L is directed to the longitudinal direction of the pillar garnish 70 with respect to the tether clip 10, the tether length can be secured within a limited space between the pillar garnish 70 and the pillar 90. Thus, a sufficient gap for CSA deployment can be created between the pillar garnish 70 and the pillar 90 during CSA deployment.

  Further, since the shape of the tether cross section at the root portion 22 and the intermediate portion 24 is wide and thin, the flexibility of the tether 20 against the load from the edge of the garnish hole 80 is increased, and the edge of the garnish hole 80 is increased. The load from can be carried away. As a result, it becomes difficult for the tether 20 to be twisted (bite in and caught) by the load from the edge of the garnish hole, and brittle fracture of the tether 20 due to the twist at an extremely low temperature can be suppressed.

  Further, in the root portion 22 and the intermediate portion 24 of the tether 20, the length of the long side 30 of the tether cross section is longer than the length of the short side of the garnish hole. Rotation can be suppressed. As a result, the number of guide plates 38 can be reduced.

  Further, in the root portion 22 and the intermediate portion 24, the extending direction of the long axis 34 of the tether section is inclined from the direction perpendicular to the long axis 86 of the garnish hole 80 (the extending direction of the short axis 88 of the garnish hole 80). Even if the length of the long side 30 of the tether cross section is longer than the length of the short side 84 of the garnish hole 80, the tether 20 can be inserted through the garnish hole 80. Further, when a large load is applied to the tether in a direction orthogonal to the long axis 86 of the garnish hole 80 (such as the initial stage of CSA deployment), the long axis 34 of the tether cross section is from a direction orthogonal to the long axis 86 of the garnish hole 80. Further, by bending in a tilting direction, the tether 20 can receive a load from the garnish hole edge. As a result, the brittle fracture of the tether 20 due to twisting at a low temperature can be further suppressed, and the impact on the edge of the garnish hole can be mitigated to reduce the danger to the pillar garnish 70. Furthermore, since the major axis 34 of the tether section is bent in a direction further inclined from the direction perpendicular to the major axis 86 of the garnish hole 80, the separation from the pillar 90 of the pillar garnish 70 is improved, thereby improving the CSA deployment gap. Formation becomes easy.

  Since the intermediate portion 24 is gently curved along the tether longitudinal direction L, the tether length can be secured. In addition, the intermediate portion 24 is supple, so that the impact force to the edge of the garnish hole 80 can be alleviated and the danger to the pillar garnish 70 is reduced.

The perspective relationship between the first ridge line 28a and the second ridge line 28b from the anchor 50 is the first ridge line 2
It is maintained over the entire length of 8a and the second ridge line 28b and does not reverse. Further, the perspective relationship between the third ridge line 28c and the fourth ridge line 28d from the seat 12 is maintained over the entire length of the third ridge line 28c and the fourth ridge line 28d and is not reversed. The first ridge line 28a and the third ridge line 28c are connected smoothly (without a step), and the second ridge line 28b and the fourth ridge line 28d are connected smoothly (without a step). Thus, unnecessary rotation of the tether 20 when the tether 20 extends is reduced, and the tether 20 can smoothly extend until the anchor 50 hits the edge of the garnish hole 80 during CSA deployment.

  In addition, the sum of the length of the first ridge line 28a and the length of the third ridge line 28c is brought close to the sum of the length of the second ridge line 28b and the length of the fourth ridge line 28d, and is substantially the same. Therefore, in the comparative clip 110, the stress concentration generated in the ridge line on the side where the ridge line length of the tether 120 is short when the tether 120 is extended is alleviated, and the brittle fracture of the tether 120 at a low temperature is further suppressed.

  Further, the above-mentioned effect due to the fact that the extending direction of the long axis 34 of the tether section is inclined from the direction orthogonal to the long axis 86 of the garnish hole is that the extending direction of the long axis 34 of the tether section is orthogonal to the long axis 86 of the garnish hole. This is particularly ensured when the tilt angle A from the direction in which it is in the range of 40 ° ± 20 °. The reason for this is that when the angle A is less than 20 degrees, the tether 20 approaches the tether 120 of the comparison clip 110, and the tether 20 is likely to be twisted and brittle fracture at low temperatures, and the angle A is set to 60 degrees. This is because the stress generated on the inner peripheral side portion of the tether 20 at the time of CSA deployment may become excessively large.

  Since the length of the long side of the tether cross section at the tip portion 26 of the tether 20 is shorter than the length of the short side 84 of the garnish hole 80, the tip portion 26 of the tether 20 is positioned in the garnish hole 80 and the tip of the anchor 50 and the tether 20 is placed. The portion 26 is rotated 90 degrees with respect to the garnish hole 80, the longitudinal direction of the anchor 50 is made perpendicular to the longitudinal direction of the garnish hole 80, and then the tether 20 is inserted into the garnish hole 80, thereby Assembly to the garnish 70 becomes possible.

  In addition, a guide plate 38 that protrudes in a direction orthogonal to the longitudinal direction of the anchor 50 is provided at a portion connected to the tether distal end portion 26 of the intermediate portion 24 of the tether 20. Therefore, even though the tether 20 is bent and twisted, the edge of the garnish hole 80 can be moved from the guide plate 38 to the anchor elastic piece 54 without being caught when the CSA is deployed, and the anchor main body 52 can be moved to the garnish hole 80. The edge can be reliably applied.

  Next, with respect to the pillar garnish mounting structure 2, since the pillar garnish mounting structure 2 uses the tether clip 10, the same operation and effect as the tether clip 10 can be obtained in the pillar garnish mounting structure 2.

  In addition to this, the tether 20 is twisted around the center of the cross section, and the length of the long side 30 of the cross section of the tether 20 is made larger than the length of the short side 84 of the garnish hole 80. The rotation of the tether 20 around the center of the tether cross section at the portion 22 and the intermediate portion 24 can be stopped. Therefore, it is not necessary to provide a guide plate 38 near the base portion 22 of the intermediate portion 24 in order to stop the rotation at the intermediate portion 24, and it is not necessary to increase the size of the tether cross section. In addition, the length of the root portion 22 and the intermediate portion 24 can be increased without being restricted by the rotation stop structure, and as a result, the tether length can be increased, which is advantageous for forming a CSA gap during CSA deployment.

2 Pillar garnish mounting structure 10 Clip (tether clip)
12 Seat portion 20 Tether 22 Root portion 24 Intermediate portion 24a Intermediate portion 26 farthest from anchor 50 Tip portion 28a First ridge line 28b Second ridge line 28c Third ridge line 28d Fourth ridge line 30 Long side 34 of tether cross section Long axis 38 of tether cross section Guide plate 50 Anchor 70 Pillar garnish 80 Garnish hole 84 Short side of garnish hole 86 Long axis 90 of garnish hole Pillar (body)
L tether longitudinal direction

Claims (7)

A root portion connected to the seat portion, a tip portion connected to the anchor, and an intermediate portion extending between the root portion and the tip portion, having a tether longitudinal direction extending along one surface, and at least one of the total length of the tether A portion comprising a tether that is curved along the one surface;
A tether clip that is assembled to a pillar garnish at a rectangular garnish hole site with the longitudinal direction of the tether facing the longitudinal direction of the pillar garnish, and is used to attach the pillar garnish to the pillar,
The shape of the tether cross section perpendicular to the tangent direction of the tether at any tether position separated from the connection to the tether seat along the tether is a rectangle, and the shape of the tether cross section at the root portion and the middle portion is the tip. It is wider and thinner than the shape of the tether cross section in the part,
The length of the long side of the tether cross section in the root part and the intermediate part is longer than the length of the short side of the garnish hole,
The extending direction of the major axis of the tether cross section in the root part and the intermediate part is inclined from the direction perpendicular to the major axis of the garnish hole,
A tether clip in which at least a part of a root part and an intermediate part is gently curved. From the connection part of the tether to the base part of the root part and the intermediate part, to the middle part part farthest from the anchor, it is close to the first ridge line and the anchor on the side far from the anchor at the end of the tether section in the long axis direction. A second ridge line on the side, and the perspective relationship from the anchor of the first ridge line and the second ridge line is maintained over the entire length of the first ridge line and the second ridge line and is not reversed,
From the middle part of the tether farthest from the anchor of the middle part to the connecting part to the tip part of the middle part, the third ridge line and the seat part on the side far from the seat part at the end of the long axis of the tether cross section The third ridge line and the perspective relationship from the seat of the fourth ridge line are maintained over the entire length of the third ridge line and the fourth ridge line and do not reverse,
The tether clip according to claim 1, wherein the first ridge line and the third ridge line are smoothly connected, and the second ridge line and the fourth ridge line are smoothly connected.   The intermediate portion has an upward curved portion that is convex in a direction away from the seat portion, and a downward curved portion that is convex toward the extension of the seat portion on the side closer to the anchor than the upward curved portion, so that the first ridge line The tether clip according to claim 2, wherein the sum of the length of the second ridge line and the length of the third ridge line is equal to or substantially equal to the sum of the length of the second ridge line and the length of the fourth ridge line.   The inclination angle from the direction orthogonal to the long axis of the garnish hole in the extending direction of the long axis of the tether cross section in the root portion of the tether is in the range of 40 degrees ± 20 degrees. The tether clip as described in the item.   The tether clip according to any one of claims 1 to 4, wherein a length of a long side of a tether cross section at a tip portion of the tether is shorter than a length of a short side of the garnish hole.   The guide plate which protrudes in the direction orthogonal to the direction parallel to the extension direction of an anchor is provided in the edge part of the tether front-end | tip part side of the intermediate part of a tether. The tether clip as described in. The tether clip according to any one of claims 1 to 6,
Pillar garnish where the tether clip is assembled with the tether longitudinal direction facing the pillar garnish longitudinal direction;
A pillar to which a pillar garnish with a tether clip is attached using a tether clip;
In the state where the tether clip is assembled to the pillar garnish, the extending direction of the long axis of the rectangular tether cross section at the base of the tether is inclined from the direction orthogonal to the long axis of the rectangular garnish hole. Pillar garnish mounting structure.

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