JP2014040882A - Fixture, and fitted member fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture and a fitted member fixing device that can suppress breakage from a catch peripheral part in the beginning of CSA expansion.SOLUTION: A fixture 1 according to the present invention includes: a clip body 10 having a leg part 40 with an opening 5, and an elastic catch 44 provided in the opening 5. A thickness T of opening corner part edges 45a, 45b of the leg part 40 in a leg part axial direction is increased more than a thickness T' of a comparison opening corner part 105 in the leg part axial direction. The lower opening corner part edge 45a connects a most recessed part 42a of a valley surface 42, connecting a catch side face 44 to a leg part side face 40a opposed thereto in a catch width direction or catch thickness direction, to the leg part side face 40a. The upper opening corner part edge 45b is opposed to a catch upper part in the catch width direction. Consequently, cracking from the lower opening corner part edge 45a and upper opening corner part edge 45b in the beginning of CSA expansion can be suppressed.

Description

The present invention relates to a fixing member that is used to attach a member to be attached, for example, a curtain airbag to a vehicle body, and that can suppress breakage from the peripheral portion thereof, and a member to be attached using the fixing member. It is related with the to-be-attached member fixing device fixed to the body. These have a fixing tool as a main part, and the main part has the same structure as each other.
Hereinafter, the curtain airbag is also referred to as “CSA”. CSA is an abbreviation for Curtain Shield Airbag.

Patent Document 1 discloses a conventional fixing tool and a CSA fixing device using the fixing tool.
FIG. 13 and FIG. 14 show a schematic structure of a fixture 101 for comparison (comparison may be called conventional or reference). The fixture 101 includes a clip body 110. The clip main body 110 includes a leg portion 140 having an opening 105 and an elastic locking claw 144 provided at the opening 105 and coupled to the leg portion 140 at one end portion. The opening 105 has corner portions 105a and 105b at a lower portion and an upper portion. A space 146 is formed in the leg 140 by the opening 105.

The lower corner portion 105a has a trough surface 142 that connects the claw side surface 144a and the leg side surface 140a facing the claw side surface 144a with a space 146 therebetween.
The valley surface 142 has a symmetrical shape with the center line in the width direction of the space portion 146 as a symmetrical center line. This left-right symmetric shape is a semicircular shape (FIG. 13), or a U-shaped corner obtained by connecting the claw side surface 144a and the leg side surface 140a by the valley surface 142 with an arc having an appropriate radius (including 0). It consists of a shape with a corner dropped (FIG. 14).
13 and 14, the shape of the valley surface 142 is a semicircular shape on both sides in the width direction of the elastic locking claw 144, and the U-shaped corner is an arc on the inner side in the thickness direction of the elastic locking claw 144. Although the case where the corner is cut off is shown, the reverse may be possible. That is, the shape of the valley surface 142 is a shape in which U-shaped corners are cut off by arcs on both sides in the width direction of the elastic locking claws 144, and a semicircular shape is formed on the inner side in the thickness direction of the elastic locking claws 144. Also good.
The upper corner portion 105b has a shape in which the axial portion 105c of the opening and the axially orthogonal portion 105d of the opening are connected by an arc (FIG. 13).

  In FIG. 1 to FIG. 5, for comparison with the present invention, the shapes of corner portions 105 a and 105 b for comparison (conventional or reference) are shown by two-dot chain lines. As shown in FIGS. 1 to 5, at any position between the axial end 5 d and the axial portion 105 c of the opening on the leg axial orthogonal line 5 d ′ passing through the axial end 5 d of the opening 5. The thickness in the leg axial direction of the corners 105a and 105b from the leg axial orthogonal line 5d ′ passing through the axial end 5d of the opening 5 in the direction along the leg axial line S is represented by T ′. .

  At the initial stage of CSA deployment, the pulling force is applied to the leg 140 due to the deployment force of the CSA, and a compression force is applied to the locking claw 144 from the edge of the fixture mounting hole 190d formed in the vehicle body 190. . At this time, the portion near the leg side surface 140a of the valley surface 142 of the lower corner portion 105a and the portion near the intersection of the arc surface of the upper corner portion 105b and the axial direction portion 105c increase as the distance from the claw side surface 144a increases. That is, a bending moment that increases as it approaches the leg side surface 140a is applied, and bending tensile stress is generated at that portion.

JP 2005-047325 A

However, the conventional fixing tool and the CSA fixing device using the fixing tool have room for improvement in the following points.
When there is a request to increase the CSA deployment pressure in order to increase the capacity of the CSA or shorten the deployment time, it is difficult to satisfy the request with the conventional structure.
This is because, in the lower corner portion 105a, there is a possibility that a crack from the valley surface 142 and a break starting from the valley surface 142 may occur.
Further, in the upper corner portion 105b, there is a possibility that a crack and a break starting from the crack may occur from the vicinity of the intersection between the arc surface and the axial direction portion 105c of the opening 105.

  An object of the present invention is to provide a fixture that can suppress breakage from the periphery of the locking claw at the initial stage of CSA deployment, and a mounted member fixing device that fixes the mounted member to the vehicle body using the fixture. It is in.

  The fixture and the attachment member fixing device of the present invention that achieve the above object can take the following first to seventh aspects of the present invention. Below, the member number enclosed with the parenthesis shows the member number which appears in FIGS. 1-5 which showed the outline of the principal part of this invention.

As shown in FIGS. 1 to 5, the fixture (1) according to the first aspect of the present invention includes a leg (40) having an opening (5) and a leg at one end provided in the opening (5). A clip body (10) having an elastic locking claw (44) coupled to the portion (40).
Thickness in the axial direction of the leg from the axial orthogonal line (5d ′) passing through the axial end (5d) of the opening (5) of the opening corner edge (45a, 45b) of the leg (40) T) consists of an arc in contact with an axial orthogonal line passing through the axial end of the opening and an extension line of the axial part toward the extension line (5c ′) of the axial part (5c) of the opening (5). It is higher than the wall thickness (T ′) in the leg axial direction of the comparative opening corner (105).

The fixture (1) according to the second aspect of the present invention according to the first aspect includes a claw side surface (44a) and a claw side surface (44a) of the locking claw root as shown in FIGS. And a leg surface (40a) facing each other with a space (46) therebetween, and a valley surface (42) connecting the claw side surface (44a) and the leg portion side surface (40a).
The trough surface (42) has the most concave portion (42a), and the most concave portion (42a) is located closer to the locking claw root portion side than the center between the claw side surface (44a) and the leg side surface (40a).
The thickness (T) in the leg axial direction of the portion (42c) between the most concave portion (42a) of the valley surface (42) and the leg side surface (40a) is increased as the distance from the claw side surface (44a) increases. Yes.

  In the fixture (1) according to the third aspect of the present invention according to the second aspect, as shown in FIG. 3, the claw side surface (44a) and the most concave portion (42a) of the valley surface (42) are curved. Are connected by a claw-side trough surface portion (42b) with a leg side surface (40a) and a concave portion (42a) of the trough surface (42) are connected by a leg-side trough surface portion (42c) having a curved shape. ing. The radius (R2) of the curved shape of the leg side valley surface portion (42c) is larger than the radius (R1) of the curved shape of the claw side valley surface portion (42b).

  In the fixture (1) according to the fourth aspect of the present invention according to the second or third aspect, as shown in FIG. 1 to FIG. 3, the claw side surface (44a) is a locking claw at the locking claw root portion. It is a side surface in the width direction.

  In the fixture (1) according to the fifth aspect of the present invention according to the second or third aspect, as shown in FIG. 4, the claw side surface (44a) is the inner surface in the locking claw thickness direction at the locking claw root portion. It is.

  In the fixture (1) according to the sixth aspect of the present invention according to any one of the first to fifth aspects, as shown in FIG. 5, the upper part of the engaging claw faces the engaging claw width direction. The thickness (T) of the opening corner portion edge (45b) of the leg portion (40) in the leg axial direction is increased toward the extension line (40a ′) of the leg side surface (40a).

  The attached member fixing device (2) according to the seventh aspect of the present invention uses the fixing device (1) of any one of the first to sixth aspects to attach the attached member (80) to the vehicle body ( 90).

  According to the fixing device (1) according to the first aspect, the thickness (T) of the opening corner portion edge portion (45a, 45b) of the leg portion (40) in the leg axial direction is set to the opening portion (5). The stress is generated along the opening corner edge (45a, 45b) when stress is generated in the opening corner edge (45a, 45b) because it is raised toward the extension line (5c ′) of the axial part (5c). Is distributed, and the bending tensile stress at the edge of the opening corner (45a, 45b) is reduced by increasing the thickness. As a result, it can suppress that a crack generate | occur | produces from an opening corner part edge part (45a, 45b).

According to the fixture (1) according to the second aspect, the thickness (in the leg axial direction) of the portion (42c) between the most concave portion (42a) of the valley surface (42) and the leg side surface (40a) ( T) is increased as the distance from the claw side surface (44a) increases, and accordingly, the strength of the portion (42c) between the most concave portion (42a) of the valley surface (42) and the leg side surface (40a) is increased. can do. The bending moment applied to the portion (42c) between the most concave portion (42a) of the valley surface (42) and the leg side surface (40a) is from the intersection of the claw side surface (44a) and the valley surface (42) to the leg side surface. Since it increases toward the intersection of (40a) and the valley surface (42), the bending moment increases and the direction of increasing the strength of the valley surface (42) becomes the same, and the valley surface (42) is optimally increased in strength. .
Moreover, since the most recessed part (42a) of a trough surface (42) exists in the position near a nail | claw side surface (44a) from a nail | claw side surface (44a) or a leg part side surface (40a), the most recessed part (42a) of a trough surface (42) ) And the claw side surface (44a), a compressive stress acts on the portion (42b) as the angle between the claw side surface (44a) and the valley surface (42) decreases. As a result, cracks are unlikely to occur from this part.

  According to the fixing device (1) according to the third aspect, the claw side surface (44a) and the most recessed portion (42a) of the trough surface (42) are connected by the claw side trough surface portion (42b) having a curved shape, Since the side surface (40a) and the most concave part (42a) of the valley surface (42) are connected by the leg-side valley surface portion (42c) having a curved shape, the valley surface (42) has no notch and is pulled to the notch Occurrence of cracks due to stress. Further, since the radius (R2) of the curved shape of the leg side valley surface portion (42c) is larger than the radius (R1) of the curved shape of the claw side valley surface portion (42b), the leg side valley surface portion (42c) The thickness (T) in the leg axial direction can be easily increased toward the extension line (40a ′) of the leg side surface (40a).

  According to the fixture (1) according to the fourth aspect, since the claw side surface (44a) is the side surface in the locking claw width direction at the locking claw root portion, it is connected to both side surfaces in the claw width direction of the locking claw root portion. It can suppress that a crack generate | occur | produces from the trough surface (42) to do.

  According to the fixing device (1) according to the fifth aspect, since the claw side surface (44a) is the inner surface in the locking claw thickness direction in the locking claw root portion, the trough surface connected to the inner surface of the locking claw root portion ( 42) It can suppress that a crack generate | occur | produces.

  According to the fixture (1) according to the sixth aspect, the meat in the leg axial direction of the opening corner portion edge portion (45b) of the leg portion (40) facing the locking claw upper portion in the locking claw width direction is provided. Since the thickness (T) is increased toward the extension line (40a ′) of the leg side surface (40a), from the leg opening corner edge (45b) facing the locking claw upper portion in the locking claw width direction. It can suppress that a crack generate | occur | produces.

  According to the attached member fixing device (2) according to the seventh aspect, the attached member (80) is attached to the vehicle body (80) using the fixture (1) according to any one of the first to sixth aspects. 90), the same effect as the effect of the fixture (1) according to any one of the first to sixth aspects can be obtained.

It is a principal part expanded front view of the latching claw of the fixing tool concerning one Example of this invention, and its vicinity. It is a principal part enlarged front view of the lower opening corner part in the width direction both sides of a latching claw, and its vicinity. It is a principal part enlarged front view of the opening corner part of the lower part at the time of making the radius of the curve shape of a leg part trough surface part larger than the curve shape radius of a nail | claw side trough surface part. It is a principal part expanded sectional view of the lower opening corner part in the thickness direction inner surface of a latching claw, and its vicinity. The cross-sectional display is omitted for simplification of the drawing. It is a principal part expansion front view of the upper opening corner part in the width direction both sides of a latching claw, and its vicinity. It is a perspective view of the fixture concerning one example of the present invention. It is a front view of a clip main body among the fixtures of FIG. 6 in the state which the clip main body has penetrated the fixture attachment hole. It is sectional drawing which follows the 8-8 line of FIG. It is an expanded sectional view of a fixture in the state where the pin latching claw of a lock pin has latched in the temporary holding latching hole of a clip body. FIG. 10 is an enlarged cross-sectional view of the fixing device of FIG. 9 in a state in which a pin locking claw of the lock pin is locked in the main holding locking hole of the clip body. FIG. 3 is a layout diagram of a fixture in a vehicle. It is sectional drawing in the front pillar part of the to-be-attached member fixing device of this invention. It is a schematic front view of the leg part of the conventional fixture. It is a schematic sectional drawing in alignment with line 14-14 of the leg part of FIG.

A fixing device according to an embodiment of the present invention and a mounting member fixing device in which a mounting member, for example, a CSA is mounted on a vehicle body using the fixing device will be described with reference to FIGS. 1 to 5 show an enlarged view of the main part of the fixture of the present invention, and FIGS. 6 to 10 show the detailed structure of the fixture of the present invention including the same. 11 and 12 show the mounted member fixing device of the present invention including a fixing tool.
6 to 12, L indicates the longitudinal direction of the rectangular fixture in plan view, and P indicates the direction orthogonal to the longitudinal direction. In FIG. 11, FR indicates the front side of the vehicle, UP indicates the upper side of the vehicle, and in FIG. 12, IN indicates the inner side direction of the vehicle left-right direction.

〔Fixture〕
As shown in FIG. 1, the fixture 1 includes a clip body 10. The fixture 1 may include a lock pin 50 and a spacer 70. However, the lock pin 50 and the spacer 70 may be omitted. Hereinafter, a case where the fixture 1 includes the lock pin 50 and the spacer 70 will be described as an example.

  The clip body 10, the lock pin 50, and the spacer 70 are made of a resin material having flexibility. The resin material is, for example, polyacetal or polyhexamethylene adipamide. However, other resin materials may be used as long as they are flexible and have a necessary strength.

As shown in FIG. 6, the clip main body 10 includes a head portion 12 and leg portions 40 that are coupled to the head portion 12 and extend in a direction away from the head portion 12 along the clip main body central axis 10a.
In the fixing device 1, both the head portion 12 and the leg portion 40 have a substantially rectangular outer shape in a plane orthogonal to the clip body central axis 10 a.
As shown in FIG. 12, when the CSA 80 is attached to the fixture attachment hole 90d of the body 90 by the fixture 1, the rectangular shape of the fixture 1 in a plan view of the fixture 1 seen along the clip body central axis 10a. A longitudinal direction (hereinafter, also simply referred to as a “fixer longitudinal direction”) L and a direction in which the CSA body 80a extends are parallel to each other.

  As shown in FIG. 6, the head portion 12 of the clip main body 10 includes a seat portion 14 extending in a direction orthogonal to the clip main body central axis 10 a, and a leg portion 40 opposite to the seat portion 14 in the clip main body central axis 10 a direction. And the connecting portion 18 that connects the narrow portion 16 and the seat portion 14 to each other. In the direction P orthogonal to the fixture longitudinal direction L, the width of the narrow portion 16 is narrower than the width of the seat portion 14. Thereby, as shown in FIG. 12, the outer shape of the cross section of the CSA 80 can be brought close to the clip body central axis 10a, and the width of the A pillar garnish 98 can be narrowed. The width of the connecting portion 18 in the direction P perpendicular to the fixture longitudinal direction L increases as the seat portion 14 approaches the narrow portion 16.

As shown in FIGS. 8 to 10, the clip body 10 has a lock pin insertion hole (also referred to as a center hole) 20 extending in the direction along the clip body center axis 10 a at the center. The center axis of the lock pin insertion hole 20 coincides with the clip body center axis 10a. The lock pin insertion hole 20 opens on the opposite side of the leg portion 40 in the direction along the central axis of the lock pin insertion hole 20.
The lock pin insertion hole 20 extends from the upper end of the head 12 to the bottom wall formed near the lower end of the leg 40.

As shown in FIG. 6, the head 12 includes a pair of side walls 22 </ b> L extending in the fixture longitudinal direction L on both sides in the direction P perpendicular to the fixture longitudinal direction L of the lock pin insertion hole 20, and the lock pin insertion hole 20. It has at least one pair extending in the direction P orthogonal to the CSA longitudinal direction on both sides of the fixture longitudinal direction L, and two pairs of orthogonal sidewalls (hereinafter also simply referred to as sidewalls) 22P in the illustrated example.
The lock pin insertion hole 20 is surrounded by a pair of side walls 22L and a pair of side walls, and if there are two pairs, the inner side wall 22P.
The distance between the inner surfaces of the pair of side walls 22L and the distance between the inner surfaces of the pair of side walls 22P are set so that a finger does not enter or is difficult to enter. It is difficult to insert.

  When the lock pin 50 is in the temporary holding position P <b> 1, the entire lock pin 50 is located in the lock pin insertion hole 20. In this state, the top surface of the pin head 52 of the lock pin 50 does not protrude from the tip of the head 12 on the side far from the leg 40 to the side opposite to the leg 40. This also suppresses erroneous insertion of the lock pin 50.

  As shown in FIGS. 8 to 10, a center rib 48 is provided inside the seat portion 14 and the leg portion 40 in the lock pin insertion hole 20. The central rib 48 extends downward from the substantially same height as the upper surface of the seat portion 14 to the bottom wall near the lower end portion of the leg portion 40, and is coupled to the seat portion 14 and the leg portion 40 at both ends in the fixture longitudinal direction L. To do. When a pulling force is applied from the CSA 80 to the seat portion 14 when the CSA is deployed, a tensile force is applied to the leg portion 40 and the central rib 48 in the pulling direction.

An opening 5 is provided on the side wall of the leg portion 40 of the clip body 10. The opening 5 is provided with a locking claw 44 that can be elastically displaced in a direction orthogonal to the side wall of the leg 40. The locking claw 44 is coupled to the side wall of the leg portion 40 at the end (locking claw root portion) on the side away from the head 12.
As shown in FIGS. 1 and 7, the edges of the lower and upper corner portions of the opening 5 constitute a lower opening corner portion edge 45a and an upper opening corner portion edge 45b, respectively.

The width direction side surface (claw side surface) 44a and the upper surface (claw side surface) of the locking claw 44 are separated from the leg side surface 40a facing the claw side surface 44a by an inverted U-shaped slit-like space 46. The slit-shaped space 46 constitutes a part of the space formed by the opening 5.
A claw side surface 44 a made of an inner surface 44 a facing the clip body central axis 10 a of the locking claw 44 is separated from a leg side surface 40 a made of the surface of the central rib 48 by a space 46. A space 46 between the claw side surface 44 a on the inner surface of the locking claw and the leg side surface 40 a on the center rib surface constitutes a part of the space formed by the opening 5.
Since the locking claw 44 is separated from the leg portion 40 and the central rib 48 by the space 46, the locking claw 44 can be elastically deformed in a direction perpendicular to the clip body central axis 10a around the locking claw root portion. is there.

As shown in FIGS. 1 to 4, the claw side surface 44 a and the leg side surface 40 a facing the surface 44 a with a space 46 therebetween are connected by a concave valley surface (also referred to as a concave surface) 42 toward the head 12. It is.
The valley surface 42 may be a valley surface connecting the claw side surface 44a on the side surface in the width direction of the locking claw 44 and the leg side surface 40a facing the claw side surface 44a, or the claw side surface 44a on the inner surface of the locking claw. A valley surface connecting the leg side surface 40a on the surface of the central rib may be used. The valley surface 42 is asymmetrical with respect to a line passing through the center of the width of the space 46 and parallel to the clip body central axis 10a.

The valley surface 42 has the most concave portion 42a farthest from the head 12 in a direction parallel to the clip body central axis (same as the leg axial direction) 10a.
The most concave portion 42a may be located at a position slightly separated from the claw side surface 44a toward the leg side surface 40a as shown in FIG. 3, or at the intersection of the trough surface 42 and the claw side surface 44a as shown in FIG. There may be.
The valley surface portion 42c that connects the most concave portion 42a of the valley surface 42 and the leg side surface 40a constitutes the surface of the opening corner edge 45a.

  As shown in FIG. 9 and FIG. 10, the thickness direction outer surface 44d of the end portion on the head 12 side of the locking claw 44 bulges away from the clip body central axis 10a, and the locking claw 44 is in a free state. Thus, it protrudes from the outer surface 40b of the portion other than the locking claw 44 of the leg portion 40 in a direction orthogonal to the clip body central axis 10a.

  The locking claw 44 includes a surface 44d extending obliquely in the direction away from the clip body central axis 10a from the root side to the head 12 side, and a clip from the end of the surface 44d on the head 12 side to the head 12 side. A surface 44e extending obliquely toward the main body central axis 10a side, and a surface 44f bent in the middle of the surface 44e and extending in the direction substantially perpendicular to the clip main body central axis 10a to the inner surface 44a of the locking claw 44 on the clip main body central axis 10a side. Have.

  When the leg portion 54 of the lock pin 50 is not inserted into the space 46 between the inner surface 44a of the locking claw 44 and the central rib 48 (FIG. 8), the locking claw 44 moves toward the clip body central axis 10a. Elastic displacement is possible. When the leg portion 54 of the lock pin 50 is inserted into the space 46 between the inner surface 44a of the locking claw 44 and the central rib 48 (FIG. 10), the locking claw 44 is elastically displaced toward the clip body central axis 10a. It is impossible. The clip body 10 is pushed into the fixture mounting hole 90d of the vehicle body 90 in a state where the lock pin 50 is not inserted into the space 46. When the locking claw 44 passes through the fixture mounting hole 90d, the locking claw 44 retracts to the center axis 10a of the clip body, and when it passes, the locking claw 44 returns to its original position due to elasticity, and the fixing tool mounting hole 90d. Engage with the peripheral edge of the rim. When the lock pin 50 is inserted into the space 46 through the lock pin insertion hole 20 in this state, the clip body 10 is locked to the vehicle body 90.

  The central portion in the width direction of the locking claw 44 when viewed in a direction perpendicular to the clip body central axis 10a is inclined from the outer surface 44d of the locking claw 44 toward the head 12 and toward the clip body central axis 10a. A groove 44b having a groove bottom surface extending in the direction is formed.

  The groove 44b is formed from the outer surface 44d to the inner surface 44a of the locking claw 44. 8-10, the inner surface of the wall constituting the lock pin insertion hole 20 is on the lock pin insertion hole open end side from the seat part 14 and the seat part 14 and extends in parallel to the clip body central axis 10a. A portion 20b extending obliquely from the end opposite to the lock pin insertion hole open end of the portion 20a to the side opposite to the lock pin insertion hole open end and toward the clip body central axis 10a, and opposite to the lock pin insertion hole open end of the portion 20b A portion 20c extending in parallel to the clip body central axis 10a from the side end to the slit-like space 46 just above the locking claw 44 on the side opposite to the lock pin insertion hole open end, and an inner surface 44a of the locking claw 44 are included.

  The inner surface 44a of the locking claw 44 is located closer to the clip body central axis 10a than the portions 20a, 20b, and 20c that are closer to the lock pin insertion hole open end side than the locking claw 44 on the inner wall surface of the lock pin insertion hole 20. It is in. Therefore, when the lock pin 50 is removed from the clip body 10, the end 44 c of the groove 44 b on the clip body central axis 10 a side is closer to the lock pin insertion hole open end than the locking claw 44 in the lock pin insertion hole 20. Through the portion on the side, it opens to the head 12 side, that is, to the lock pin insertion hole open end side.

  Thus, when the clip body 10 is removed from the vehicle body 90, a clip body removal jig (not shown) is inserted into the lock pin insertion hole 20 from the open end side of the lock pin insertion hole, and the end 44c of the groove 44b. Can be elastically displaced toward the clip body central axis 10a side by pushing on the inclined surface of the tip of the jig.

  The distance between the inner surface 44a of the locking claw 44 and the central rib 48 is such that when the locking claw 44 is elastically displaced toward the clip body central axis 10a side by a jig, the outer surface 44d of the locking claw 44 is fixed to the leg 40. The outer surface 40b of the part other than the locking claw 44 or the interval at which the clip main body axis 10a is located is set. As a result, the locking claw 44 can pass through the fixture mounting hole 90d of the vehicle body 90 in a state where the locking claw 44 is elastically displaced toward the clip body central axis 10a side by the jig, and by pulling the jig, The clip body 10 can be removed from the vehicle body 90 as it is.

As shown in FIGS. 9 and 10, the lock pin 50 has a lock pin central axis 50a. The central axis is also called the axis. The lock pin 50 is inserted into the lock pin insertion hole 20 through the opening of the lock pin insertion hole 20 with the lock pin central axis 50a aligned with the clip body central axis 10a.
As shown in FIG. 9, the lock pin 50 is temporarily held by the clip body 10 when the lock pin 50 is in the temporary holding position P <b> 1 in the middle of insertion into the lock pin insertion hole 20.
As shown in FIG. 10, when the lock pin 50 is in the book holding position P <b> 2 inserted in the lock pin insertion hole 20 to the back, the lock pin 50 is held by the clip body 10.

The lock pin 50 includes a pin head portion 52, a pin leg portion 54, a pin flexible portion 58, a pin locking claw 56, and an extending portion 64.
The outer shape of the pin head 52 in a plan view viewed along the lock pin central axis 50a is substantially rectangular. As shown in FIG. 12, when the CSA 80 is attached to the vehicle body 90 with the fixture 1, and the lock pin 50 is temporarily held or permanently held by the clip body 10, the rectangular longitudinal direction of the lock pin 50 and the CSA body 80a Are parallel to each other.

  The pin leg 54 extends from the pin head 52 in the insertion direction into the clip body 10 substantially parallel to the lock pin central axis 50a. When two locking claws 44 are provided on the leg portion 40, two pin leg portions 54 are provided, one on each of the two long sides of the rectangular pin head 52. When four locking claws 44 are provided on the leg portion 40, four pin leg portions 54 are provided, one on each side of the rectangular pin head 52. The illustrated example shows a case where two locking claws 44 are provided and two pin leg portions 54 are provided to face each other. The plurality of pin legs 54 are separated from each other and are connected only to the pin head 52.

The pin flexible portion 58 is coupled to the pin leg portion 54 by a coupling portion 66 located away from the pin head 52 in the lock pin axial direction.
The pin flexible portion 58 extends from the coupling portion 66 with the pin leg portion 54 toward the pin head 52 side. From the end of the pin flexible portion 58 opposite to the coupling portion 66, the extending portion 64 extends in the lock pin axial direction to the same lock pin axial position as the end surface of the pin head 52 opposite to the pin leg portion 54. ing.

The pin flexible portion 58 is separated from the pin leg portion 54 and the pin head portion 52 by slits on both sides of the pin flexible portion 58 in a front view of the pin flexible portion 58. The pin flexible portion 58 can be elastically deformed around the coupling portion 66 in a direction orthogonal to the lock pin axial direction. The center in the thickness direction of the coupling portion 66 on the pin flexible portion 58 side constitutes a deformation fulcrum 66a for swinging elastic deformation of the pin flexible portion 58. When the pin flexible portion 58 swings and elastically deforms around the deformation fulcrum 66a, the pin locking claw 56 can be elastically displaced in a direction orthogonal to the lock pin central axis 50a.
The pin locking claw 56 has a claw tip 60 and a connecting portion 62 that connects the claw tip 60 and the outer surface 58 a of the pin flexible portion 58.

  As shown in FIGS. 6 to 10, the pair of side walls 22L of the head 12 of the clip body 10 has a temporary holding locking hole 26 penetrating the central portion in the longitudinal direction at the central portion in the longitudinal direction of the side wall 22L, A main holding locking hole 28 is provided on the back side. The temporary holding and locking holes 26 and the main holding and locking holes 28 are sequentially provided from the distal end side of the head portion 12 of the clip body 10 toward the seat portion 14 side, and are spaced apart from each other in the clip body axial direction. Is provided.

  The pin locking claw 56 projects outward from the outer surface of the pin leg 54. When the lock pin 50 is inserted into the lock pin insertion hole 20, the pin locking claw 56 is pushed by the pair of side walls 22L, elastically displaced toward the lock pin central axis 50a, and retracts. When the pin locking claw 56 comes to the position of the temporary holding locking hole 26, the pin locking claw 56 returns to the original position by the elasticity of the pin flexible portion 58, and the pin locking claw 56 is temporarily held and locked. It rushes into the hole 26.

  When the lock pin 50 is in the temporary holding position P <b> 1, the lower end of the pin leg portion 54 is above the upper end position of the locking claw 44. Thus, when the leg portion 40 of the clip body 10 is inserted into the clip mounting hole 90d of the body 90, the locking claw 44 can be retracted toward the clip body center axis 10a.

  When the lock pin 50 is in the temporary holding position P1, as shown in FIG. 12, the leg portion 40 of the fixture 1 is inserted through the through hole 80c of the CSA tab 80b and the leg portion insertion hole 72 of the spacer 70, and further the vehicle body. The CSA 80 is attached to the vehicle body 90 by the fixture 1 by being inserted into the 90 fixture attachment holes 90d. At this time, the lock pin 50 is still in the temporary holding position P1.

  As shown in FIG. 9, the claw tip 60 is offset to the opposite side of the lock pin center axis 50a from a line 50b passing through the deformation fulcrum 66a of the rocking elastic deformation of the pin flexible part 58 and parallel to the lock pin center axis 50a. Has been. As a result, when the lock pin 50 at the temporary holding position P1 is pushed in, an upward force acts from the lower surface of the edge of the temporary holding locking hole 26, and the pin flexible portion 58 is deformed inward around the deformation fulcrum 66a. The claw tip 60 can be easily removed from the temporary holding locking hole 26 and smoothly moved to the back.

After the attachment of the CSA 80 to the vehicle body 90 is completed, the lock pin 50 is pushed by a tool (not shown) and moved to the back of the lock pin insertion hole 20.
When the lock pin 50 is pushed to the back side of the lock pin insertion hole 20 and the pin locking claw 56 comes to the position of the main holding locking hole 28, the pin flexible portion 58 is elastically restored and the pin locking claw 56 is restored. As a result, the lock pin 50 is held at the main holding position P2.

  As shown in FIG. 10, when the lock pin 50 is in the main holding position P2, the lower end portion of the pin leg portion 54 of the lock pin 50 is located below the upper end position of the locking claw 44, and the pin leg portion 54 is locked. Located between the claw 44 and the central rib 48. As a result, the locking claw 44 of the clip body 10 cannot be retracted by being elastically displaced toward the clip body central axis 10a, and the clip body 10 cannot be detached from the body 90.

The extending portion 64 extends from the pin head side end of the pin flexible portion 58 to the pin head 52 side in the lock pin axial direction. The distal end surface of the extending portion 64 extends to the same lock pin axial position as the distal end surface of the lock pin head 52.
The extended portions 64 are provided on both sides of the lock pin central axis 50a, and a pair of the extended portions 64 are provided. The pair of extending portions 64 are sandwiched from the outer surfaces of the pair of extending portions 64 by a tool, for example, radio pliers, when the lock pin is removed.

  In a state where the pair of extending portions 64 are sandwiched between tools and the claw tip 60 is removed from the main holding lock hole 28 or the temporary holding lock hole 26, the outer end of the claw tip 60 is the lock pin insertion hole 20. It is on the clip body central axis 10a side from the inner surface 20a. Therefore, when the lock pin 50 is pulled out with the pair of extending portions 64 sandwiched by a tool, the lock pin 50 can be removed without the claw tip 60 interfering with the inner surface 20a of the lock pin insertion hole 20.

  As shown in FIGS. 9 and 10, the spacer 70 has a rectangular shape in plan view when viewed along the clip body central axis 10 a, and has a leg fitting hole 72 at the center in the longitudinal direction of the rectangular shape. Then, the leg 40 is fitted into the leg fitting hole 72. The spacer 70 has an elastic deformation portion 76 formed from the spacer portion closer to the center of the spacer longitudinal direction of the leg fitting hole 72 to both ends of the spacer 70 in the longitudinal direction than both ends of the leg fitting hole 72 in the longitudinal direction of the spacer. ing. The elastic deformation portion 76 can be elastically deformed in the clip body axial direction.

  In a state where the spacer 70 is fitted to the leg portion 40 in the clip body 10, the elastic deformation portion 76 of the spacer 70 is curved toward the side away from the head 12 in the axial direction of the clip body as it approaches both ends in the longitudinal direction of the spacer 70. Or is inclined and extends linearly.

  Although the case where the elastic deformation part 76 was formed along the spacer longitudinal direction was shown as an example, it is not limited to this. For example, you may form the elastic deformation part 76 along the direction orthogonal to a spacer longitudinal direction.

(Structure to suppress cracking from the edge of the corner opening of the fixture)
As shown in FIGS. 1 to 5, in order to suppress cracks from the opening corner edge portions 45 a and 45 b of the leg portion 40 in the initial stage of CSA deployment, the lower opening corner edge portion 45 a and the upper opening corner portion edge portion 45 b The thickness (also referred to as height or cross-sectional area) T in the leg axial direction is greater than the thickness T ′ in the leg axial direction of the comparative (conventional or reference) opening corner portion 105. It is up (thick).
The wall thickness T is a leg axial line at an arbitrary position between the axial end 5d and the axial part 5c of the opening on a leg axial orthogonal line 5d ′ passing through the axial end 5d of the opening 5. The thickness of the lower opening corner edge 45a and the upper opening corner edge 45b on S from the leg axis orthogonal line 5d 'passing through the axial end 5d of the opening 5 in the leg axial direction. .
The wall thickness T ′ is a value of the comparison (reference) opening corner portion 105 formed by an arc that touches the line 5d ′ passing through the axial end of the opening and orthogonal to the axial direction, and the axial direction portion 5c or its extension line 5c ′. The thickness T ′ on the leg axial direction line S.

The thickness T is from the axial end 5d of the opening 5 toward the extension line 5c ′ of the axial part 5c of the opening 5, that is, between the axial end 5d of the opening 5 and the extension line 5c ′ of the axial part 5c. Therefore, it is higher than the wall thickness T ′. The up portion is indicated by Tup in FIGS.
This structure is applied to both the lower opening corner edge 45a and the upper opening corner edge 45b.

In the case of the lower opening corner portion edge portion 45a, as shown in FIGS. 2 to 4, the opening corner portion edge portion 45a includes a portion 42c that connects the most concave portion 42a of the valley surface 42 and the leg side surface 40a. The comparative opening corner portion 105 is formed by an arc surface connecting the most concave portion of the valley surface 142 and the leg side surface 140a.
2 and 3, the valley surface 42 may be a valley surface that connects the claw side surface 44a and the leg side surface 40a facing the claw side surface 44a in the claw width direction, as shown in FIG. In this way, it may be a valley surface that connects the claw side surface 44a made of the inner surface of the locking claw and the leg side surface 40a made of the surface of the central rib 48 inside the claw thickness direction.

In the case of the upper opening corner edge 45b, as shown in FIG. 5, the opening corner edge 45b has a leg axial orthogonal line (axial orthogonal part) 5d ′ passing through the axial end 5d of the opening 5 and the opening 5. This corresponds to a curved surface that extends in the axial direction of the leg portion and connects to the axial direction portion 5c. The comparative opening corner portion 105 corresponds to a circular arc surface that connects the axial direction portion 105c of the opening and the axial orthogonal line 105d ′ passing through the axial end 105d of the opening.
The starting point of bending of the curved surface elongated in the leg axial direction from the leg axial direction orthogonal line 5d ′ and the starting point of bending of the arc surface of the comparative opening corner portion 105 from the axial orthogonal line 105d ′ In the direction in which the leg portion axial direction orthogonal line 5d ′ extends, they are at the same position, that is, the distance from the extension line 5c ′ of the axial portion 5c of the opening 5 is at the same position.

As shown in FIG. 2, the fixture 1 includes a claw side surface 44 a of the locking claw base portion, a leg side surface 40 a that faces the claw side surface 44 a with a space 46 therebetween, a claw side surface 44 a, and a leg side surface 40 a. And a valley surface 42 connecting the two. The valley surface 42 has the most concave portion 42 a farthest from the head 12 in the valley surface 42. The most concave portion 42a is located closer to the claw side surface 44a than the center between the claw side surface 44a and the leg side surface 40a in the leg axis orthogonal direction. The most concave portion 42a may be in the same position as the claw side surface 44a or its extension line in the leg axis orthogonal direction. A portion 42c between the most concave portion 42a of the valley surface 42 and the leg side surface 40a constitutes a lower opening corner portion edge 45a of the leg portion 40, and the leg side surface 40a constitutes a surface of the axial portion 5c of the opening 5. doing.
The thickness T in the leg axial direction of the portion 42c between the most concave portion 42a of the valley surface 42 and the leg side surface 40a is directed toward the extension line 40a ′ of the leg side surface 40a (extension line in the direction perpendicular to the leg axis). (As it approaches 40a ').

This structure is also applied when the valley surface 42 is connected to the claw side surface 44a with an angle as shown in FIG. 2, and as shown in FIG. 3, the valley surface 42 is connected smoothly to the claw side surface 44a with a curve. It also applies to cases.
This structure is also applicable to the case where the valley surface 42 is formed of a valley surface connecting the claw side surface 44a and the leg side surface 40a facing the claw side surface 44a in the claw width direction as shown in FIGS. As shown in FIG. 4, when the trough surface 42 is composed of a trough surface that connects the claw side surface 44a made of the inner surface of the locking claw and the leg side surface 40a made of the surface of the central rib 48 inside the claw thickness direction. Also applies.

  In the example shown in FIG. 3, the most concave portion 42 a of the valley surface 42 has a curved shape. Further, the claw side surface 44a and the most concave portion 42a of the valley surface 42 are connected by a claw side valley surface portion 42b having a curved shape, and the leg side surface 40a and the most concave portion 42a of the valley surface 42 have a curved shape. It is connected by the side valley surface part 42c. The radius R2 of the curved shape of the leg-side valley surface portion 42c is set larger than the radius R1 of the curved shape of the claw-side valley surface portion 42b. The curved shape of the leg side valley surface portion 42c may include a straight portion in part.

The structure of FIG. 3 is applied when the most concave portion 42a is slightly separated from the claw side surface 44a and the most concave portion 42a is connected to the claw side surface 44a via the claw side valley surface portion 42b.
Further, as shown in FIG. 3, the present invention can also be applied to the case where the valley surface 42 is formed of a valley surface connecting the claw side surface 44a and the leg side surface 40a facing the claw side surface 44a in the claw width direction. As shown in FIG. 6, the present invention is also applicable to the case where the valley surface 42 is formed of a valley surface that connects a claw side surface 44a formed from the inner surface of the locking claw and a leg side surface 40a formed from the surface of the central rib 48 inside the claw thickness direction.

2 and 3, the claw side surface 44a is the side surface in the locking claw width direction at the locking claw root portion. The leg side surface 40a facing the claw side surface 44a with the space 46 therebetween is a surface constituting the slit-like space 46 of the leg portion 40. The surface constituting the slit-like space 46 of the leg 40 extends in the axial direction of the leg 40.
As shown in FIG. 2, the moment M applied to the valley surface 10 increases as the distance from the claw side surface 44a increases in the leg axis orthogonal direction. On the other hand, the wall thickness T of the valley surface 10 is increased as it approaches the leg side surface 40a from the most concave portion 42a. The direction corresponds to the increase in the moment M applied to the valley surface 10 when the thickness T of the valley surface 10 increases. Therefore, the T-up direction is set to an appropriate direction in terms of moment resistance strength.

As shown in FIG. 4, the claw side surface 44a is the inner surface of the locking claw root portion in the locking claw thickness direction. The leg side surface 40 a that faces the claw side surface 44 a with the space 46 therebetween is a claw facing surface of the central rib 48. The claw facing surface of the central rib 48 extends in the axial direction of the leg 40.
The moment M applied to the valley surface 10 increases as the distance from the claw side surface 44a increases. The wall thickness T of the valley surface 10 is increased as it approaches the leg side surface 40a from the most concave portion 42a. The direction of increasing the wall thickness T of the valley surface 10 and the direction of increasing the moment M applied to the valley surface 10 are the same. Therefore, the T-up direction is set to an appropriate direction in terms of moment resistance strength.

As shown in FIG. 5, the thickness T in the leg axial direction of the upper opening corner portion edge 45b of the leg 40 facing the locking claw upper portion in the locking claw width direction is equal to the axially orthogonal portion of the opening. An extension 40a ′ of the axial part of the leg side surface 40a (extension line 5c of the axial part 5c of the opening) is larger than the thickness T ′ of the comparative opening corner part 105 made of an arc in contact with the axial part in the leg axial direction. ') Has been up towards. The up portion is indicated by Tup in FIG.
As a result, the upper opening corner portion edge 45b is tilted inward in the width direction from the upper end portion of the comparative opening corner portion 105, so that the shoulder portion of the upper portion of the locking claw 44 is also cut in parallel to the upper opening corner portion edge 45b. It is not provided so that it does not interfere with the upper opening corner portion edge 45b when the locking claw 44 is elastically displaced in the thickness direction.
The structure of FIG. 5 is applied only to the upper opening corner edge 45b.

[Attached member fixing device]
The mounted member fixing device 2 is a device that fixes the mounted member to the vehicle body 90 using the fixture 1.
As shown in FIGS. 11 and 12, the attached member fixing device 2 includes an attached member, for example, CSA 80, and a fixture 1 for attaching the CSA 80 to a vehicle body 90 at a tab 80b portion. The attached member may be other than the CSA 80, for example, a CSA casing.

The vehicle body 90 to which the CSA 80 is attached is, for example, a front pillar (hereinafter also referred to as an A pillar). However, it is not limited to the A pillar, and may be a side rail.
FIG. 12 shows an example in which the body 90 to which the CSA 80 is attached is an A pillar. The body 90 includes an inner panel 90a, an outer panel 90b, and a reinforcement 90c, and is made of metal, for example, steel.
FIG. 12 also shows a vehicle front shield glass 92, weather strips 94 and 96, and an A pillar garnish 98.

  The CSA 80 has a main body 80a extending along the longitudinal direction of the CSA, and a tongue-like tab 80b extending from the main body 80a toward the fixture 1 at a plurality of locations in the longitudinal direction of the main body 80a. The CSA 80 is made of cloth and is housed in a space between the A pillar garnish 98 and the inner panel 90a in a state of being folded by roll folding or bellows folding. The outer shape of the cross section of the main body 80a of the CSA 80 is substantially circular as shown in FIG. 12 in the case of roll folding, and is substantially rectangular in the case of bellows folding. The CSA main body 80a is located on the opposite side (vehicle rear side) of the front shield glass 92 of the fixture 1.

  The CSA 80 expands when an expansion gas is supplied from an inflator (not shown) at the time of a vehicle collision, and pushes the A pillar garnish 98 away from the inner panel 90a with this expansion pressure. The CSA 80 is deployed from the gap formed between the A pillar garnish 98 and the inner panel 90a into the vehicle interior and between the occupant and the side door, and restrains the occupant from the side door side. 11 and 12, 98 ′ shows a part of the state where the A-pillar garnish 98 is expanded, and 80 ′ shows a part of the deployed state of the CSA 80.

Next, functions and effects of the fixture 1 and the attached member fixing device 2 will be described.
[General actions and effects of fixtures]
Prior to attaching a member to be attached, such as CSA 80, to the vehicle body 90 using the fixture 1, the fixture 1 is conveyed with the lock pin 50 being attached to the clip body 10 at the temporary holding position P1, Handled.

  7 and 8, when the CSA 80 is attached to the vehicle body 90, the leg portion 40 is pushed into the fixture attachment hole 90d of the body 90. At this time, the lock pin 50 is in the temporary holding position P1.

  Next, the lock pin 50 is pushed from the temporary holding position P1 in FIG. 9 to the main holding position P2 in FIG. The locking claw 44 cannot be elastically displaced toward the clip body central axis 10a, and the fixture 1 is locked to the body 90 so that it cannot be removed from the fixture attachment hole 90d.

  When the lock pin 50 is in the temporary holding position P1, the lock pin 50 does not protrude from the clip body 10 and is surrounded by the side walls 22L and 22P. As a result, the erroneous insertion of the lock pin 50 from the temporary holding position P1 to the main holding position P2 is suppressed, and it is difficult for the fixture 1 to be attached to the vehicle body 90.

  When it becomes necessary to remove the fixture 1 from the body 90 such as during maintenance, the lock pin 50 is first removed from the clip body 10 and then the clip body 10 is removed from the body 90.

  When the lock pin 50 is removed from the clip body 10, a tool, for example, a radio pliers is inserted into the lock pin insertion hole 20, the pair of extension portions 64 are sandwiched between the tools, and the extension portion 64 and the pin locking claw 56 are centered on the pin. The pin locking claw 56 is removed from the temporary holding locking hole 26 or the main holding locking hole 28 by being displaced toward the axis 50a. Next, the lock pin 50 can be removed from the clip body 10 by pulling the lock pin 50 while holding the pair of extending portions 64 between the tools. Therefore, it is easy to remove the lock pin 50 from the clip body 10.

  When the clip body 10 is removed from the vehicle body 90, a clip body removal jig is used. Since the end 44c on the clip body central axis 10a side of the groove 44b is open to the head 12 side through the lock pin insertion hole 20, a jig is inserted through the lock pin insertion hole 20, and the bottom surface of the groove 44b is covered with the jig. Can be pressed. By simply pressing the bottom surface of the groove 44b in the axial direction of the clip body with a jig, the engagement claw 44 can be displaced toward the clip body central axis 10a side to disengage the engagement claw 44 from the body 90. In this state, the clip body 10 is removed from the vehicle body 90 by pulling the jig.

(Suppressing and suppressing the occurrence of cracks from the edge of the opening corner)
At the initial stage of deployment of the CSA 80, the deployment force of the CSA 80 is applied from the tab 80b to the seat 14 of the clip body 10. At this time, bending moment is applied to the opening corner edge portions 45a and 45b, and tensile stress due to the bending moment is generated in the opening corner edge portions 45a and 45b.

Since the wall thickness T in the leg axial direction of the opening corner edge portions 45a and 45b of the leg 40 is increased toward the extension line 5c 'of the axial direction part 5c of the opening 5, the opening corner is set at the initial stage of CSA deployment. When stress occurs in the edge portions 45a and 45b, the stress is dispersed along the opening corner edge portions 45a and 45b.
Moreover, the bending stress of the opening corner edge portions 45a and 45b is reduced by increasing the thickness T. In this case, the bending moment is increased in proportion, but the bending rigidity is increased to the third power by increasing the wall thickness T, so that it is possible to effectively suppress the occurrence of cracks from the opening corner edge portions 45a and 45b. it can.

Since the thickness T in the leg axial direction of the portion 42c between the most concave portion 42a of the valley surface 42 and the leg side surface 40a is increased from T ′ toward the extension line 40a ′ of the leg side surface 40a, it corresponds to it. Thus, the bending strength of the portion 42c between the most concave portion 42a of the valley surface 42 and the leg side surface 40a can be increased. The bending moment M applied to the portion 42c between the most concave portion 42a of the valley surface 42 and the leg side surface 40a is from the intersection of the claw side surface 44a and the valley surface 42 toward the intersection of the leg side surface 40a and the valley surface 42. Since it increases, the bending moment M increases and the strength of the valley surface 42 increases in the same direction, and the strength of the valley surface 42 is optimally increased.
Further, since the most concave portion 42a of the valley surface 42 is the claw side surface 44a (FIGS. 1 and 2) or closer to the claw side surface 44a than the leg side surface 40a, the most concave portion 42a of the valley surface 42 and the claw side surface 44a The intermediate portion 42b becomes a portion where compressive stress acts as the angle formed between the claw side surface 44a and the trough surface 42 decreases, and the occurrence of cracks from this portion 42b hardly occurs. This is because cracking occurs from the portion where tensile stress occurs.

  When the valley surface has two or more curved shapes, the nail side surface 44a and the most concave portion 42a of the valley surface 42 are connected by the nail side valley surface portion 42b having the curved shape, and the leg side surface 40a and the most concave portion 42a of the valley surface 42 are connected. Are connected to each other by the leg-side valley surface portion 42c having a curved shape, the valley surface 42 has no notch, and it is difficult for cracks to occur due to tensile stress applied to the notch. Moreover, since the radius R2 of the curved shape of the leg-side valley surface portion 42c is made larger than the radius R1 of the curved shape of the claw-side valley surface portion 42b, the thickness T in the leg axial direction of the leg-side valley surface portion 42c is set. It can be easily raised toward the extended line 40a ′ of the leg side surface 40a.

When the claw side surface 44a is the side surface in the locking claw width direction of the locking claw root portion, it is possible to suppress the occurrence of cracks from the valley surfaces 42 on both sides of the locking claw root portion in the claw width direction.
Moreover, when the nail | claw side surface 44a is a latching claw thickness direction inner surface in a latching claw root part, it can suppress that a crack generate | occur | produces from the trough surface 42 connected to the inner surface of a latching claw root part.

  The thickness T in the leg axial direction of the opening corner edge 45b of the leg 40 facing the locking claw upper portion in the locking claw width direction is increased toward the extended line 40a ′ of the leg side surface 40a. Therefore, it can suppress that a crack generate | occur | produces from the leg part opening corner part edge part 45b which opposes a latching claw width direction to a latching claw upper part.

[Operation and effect of attached member fixing device]
The function and effect of the fixture 1 can also be obtained in the attached member fixing device 2 in which the attached member is attached to the vehicle body 90 with the fixture 1.

[Application to other than CSA fixing fixture and fixed member fixing device for CSA fixing]
In addition, the fixture 1 of this invention is not limited to the fixture for CSA. The present invention is also applicable to other lock pin type fixtures, for example, CSA casing fixtures.
Moreover, the structure which suppresses generation | occurrence | production of the crack of the latching nail | claw 44 in the fixing tool 1 and the to-be-attached member fixing device 2 of this invention, and the fracture | rupture starting from it is the fixing used by a fixing tool or to-be-attached member fixing device. This is applicable both when the tool 1 is a curtain airbag fixing clip and when the leg is a tether clip having a similar structure. In the case of a tether clip, the attached member is a pillar garnish.

DESCRIPTION OF SYMBOLS 1 Fixture 2 CSA fixing device 5 Opening 5a Lower opening corner part edge 5b Upper opening corner part edge 5c Opening axial part 5c 'Opening axial part extension 5d Opening axial end 5d' Opening axis Axial orthogonal line 10 passing through the direction end Clip body 10a Clip body central axis 12 Head 40 Leg 40a Leg side 40a 'Extension line 42 of leg side Valley 42a Most recessed part 42b Claw side valley 42c Leg side Valley portion 44 Locking claw 44a Claw side surface 45a Lower opening corner portion edge 45b Upper opening corner portion edge 46 Space 48 Central rib 80 Mounted member such as curtain airbag (CSA)
90 Vehicle body

Claims (7)

Clip body (10) having a leg (40) having an opening (5) and an elastic locking claw (44) provided at the opening (5) and coupled to the leg (40) at one end. A fixture (1) comprising:
Thickness in the axial direction of the leg from the axial orthogonal line (5d ′) passing through the axial end (5d) of the opening (5) of the opening corner edge (45a, 45b) of the leg (40) T) is formed of an arc that is in contact with the axial orthogonal line passing through the axial end of the opening and the extension of the axial part toward the extension line (5c ′) of the axial part (5c) of the opening (5). Fixing tool (1) which is higher than the thickness (T ′) in the leg axial direction of the comparative opening corner (105). A claw side surface (44a) at the base of the locking claw, a leg side surface (40a) facing the claw side surface (44a) across a space (46), a claw side surface (44a), and a leg side surface (40a) And a valley surface (42) connecting the
The valley surface (42) has the most recessed portion (42a), and the most recessed portion (42a) is located on the side of the locking nail root from the center of the nail side surface (44a) and the leg side surface (40a),
The thickness (T) in the leg axial direction of the portion (42c) between the most concave portion (42a) of the valley surface (42) and the leg side surface (40a) is increased as the distance from the claw side surface (44a) increases. Item 1. The fixture (1) according to item 1.   The claw side surface (44a) and the concave portion (42a) of the valley surface (42) are connected by a claw side valley surface portion (42b) having a curved shape, and the leg portion side surface (40a) and the concave portion (42) of the valley surface (42) ( 42a) is connected by a leg-side valley surface portion (42c) having a curved shape, and the radius (R2) of the curved shape of the leg-side valley surface portion (42c) is the curved shape of the claw-side valley surface portion (42b). Fixing device (1) according to claim 2, wherein it is larger than the radius (R1).   The fixture according to claim 2 or 3, wherein the claw side surface (44a) is a side surface in the locking claw width direction of the locking claw root portion.   The fixture according to claim 2 or 3, wherein the claw side surface (44a) is an inner surface in the locking claw thickness direction of the locking claw root portion.   The thickness (T) in the leg axial direction of the opening corner portion edge portion (45b) of the leg portion (40) opposed to the locking claw width direction on the upper portion of the locking claw is increased toward the leg side surface (40a). The fixture (1) according to any one of claims 1 to 5.   A mounted member fixing device (2) in which the mounted member (80) is fixed to a vehicle body (90) using the fixture (1) according to any one of claims 1 to 6.

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