JP2010038185A - Fixing structure of fixed member and clip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To separate a fixed member mounted on a fixing member farther than the fixing member when drawing force of a prescribed value or more is applied. <P>SOLUTION: The fixing structure of the fixed member is configured so that when drawing force of the prescribed value or more is applied, a pin member 40 moves in the coming-out direction by only a prescribed stroke with respect to a grommet member 20, and the grommet member 20 can move in the coming out direction by only a prescribed stroke with respect to a member 201 having the grommet member mounted thereon. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fixing structure for a fixed member and a clip, and more specifically, for example, is used to attach an interior member (fixed member) of an automobile to a vehicle body structure (fixing member) and is defined as the fixed member. The present invention relates to a fixing structure for a fixed member and a grommet / pin type clip that can be displaced and displaced only by a predetermined stroke with respect to the fixing member when a load greater than the load is applied.

  Some automobiles with side airbags have a side airbag disposed inside a garnish (interior member) attached to the interior side of the front pillar. In such a case, when the side airbag is inflated, a gap is created between the front pillar and the garnish, and a load greater than the specified load is applied to the garnish from the inside of the garnish so that the side airbag is deployed in the passenger compartment through the gap. When this is applied, a garnish mounting structure is adopted that allows the garnish to be displaced in the direction of disengagement by a predetermined stroke with respect to the front pillar.

As a grommet pin type clip for attaching this garnish, a cylindrical grommet member that passes through a hole formed in the front pillar and is fixed to the front pillar by non-return engagement, and a head fixed to the garnish A pin member that is inserted into a pin receiving hole formed in the grommet member and engages with the grommet member, and a locking portion between the grommet member and the pin member has a pull-out direction load of a predetermined value or more on the pin member. In the state where it does not act, when the pin member is inserted into the pin receiving hole by a predetermined amount, that is, the pin attachment state is maintained, that is, the garnish is normally attached, and when a pull-out direction load of a predetermined value or more acts on the pin member, The pin member moves in the direction that comes out of the pin receiving hole only for a predetermined stroke from the normal state of the pin, that is, the garnish is against the front pillar There is anything that could be latching structure allows the moves in a direction in de direction (e.g., Patent Document 1).
JP 2002-37007 A

  In the above-described grommet / pin type clip, the amount of movement of the garnish in the direction to move away from the front pillar is determined by the amount of movement (predetermined stroke) of the pin member with respect to the grommet member. It cannot be set to a size greater than the insertion shaft length of the member.

  The front pillar generally has a closed box-shaped cross-sectional shape so as to have a required strength as a vehicle body constituting member. The pin member inserted into the pin receiving hole of the grommet member is housed in the inner space of the front pillar along with the grommet member, so that the insertion length of the pin member relative to the grommet member is the size of the inner space of the front pillar. In particular, in an automobile having a structure with a thin front pillar, the insertion shaft length of the pin member cannot be increased. For this reason, there may be a case where a sufficient gap between the front pillar and the garnish necessary for the development of the side airbag cannot be taken.

  The problem to be solved by the present invention is that the gap between the front pillar and the garnish necessary for deploying the side airbag can be sufficiently obtained even if the insertion length of the pin member is not sufficient. For example, when a pulling force of a predetermined value or more is applied, the member to be fixed attached to the fixing member can be largely separated from the fixing member.

  The fixing structure of the fixed member according to the present invention is attached to either the fixing member or the fixing member and the grommet member provided with the pin accommodating portion, and is attached to either the fixing member or the fixing member, A pin member inserted into the pin housing portion and held by the grommet member, and the grommet member has a predetermined stroke in a direction away from the fixing member or the fixed member to which the grommet member is attached. The pin member is accommodated in the pin accommodating portion so as to be movable only by a predetermined stroke in a direction away from the grommet member, and the grommet member is moved by the action of the fixed member. Move in a direction to detach from the fixed member to which the member is attached or the fixed member, and Even after the member is released from the holding state with the grommet member and moved away from the grommet member, the grommet member and the pin member remain attached to the fixing member and the fixed member. It is characterized by that.

The fixing member fixing structure according to the present invention includes two grommet members attached to the fixing member and the fixing member, each having a pin accommodating portion, and one end side inserted into the pin accommodating portion of one of the grommet members and the other end. The grommet member is inserted into the pin accommodating portion of the other grommet member and held by both grommet members, and the grommet member has a predetermined stroke in a direction away from the fixed member or the fixed member. The pin member is accommodated in the pin accommodating portion so as to be movable only by a predetermined stroke in a direction to be separated from both of the two grommet members, and the grommet is operated by the fixed member. The member moves in a direction away from the fixed member or the fixed member, and the pin member is in a holding state with the grommet member. It is divided after having moved to the direction away from the grommet member, the grommet member, the fixing member, the is characterized in that to remain attached to the fixed member.
Fixed structure for members.

  In the fixing structure of the fixed member according to the present invention, preferably, the grommet member has two locking portions that can be locked to the fixing member and / or the fixed member. It is characterized in that the separation loads are set to different values.

  In the fixing structure of the fixed member according to the present invention, preferably, when the locking portion is inserted into the fixing member and / or the opening provided in the fixed member, the locking member is in contact with the periphery of the opening. It is made of an elastic locking piece that has a contact portion that is bent in the direction and restored after insertion and comes into contact with the peripheral edge of the opening, and the contact of the locking portion at a position close to the fixed member and / or the fixed member The parts are characterized in that the detachment loads are set to different values by having different angles with respect to the periphery of the opening.

  The fixing structure of the member to be fixed according to the present invention is preferably characterized in that a groove portion that receives the engaging portion of the grommet member so as to be relatively movable is formed on the outer periphery of the pin member.

  The clip according to the present invention is a clip used in the fixing structure of the fixed member according to the above-described invention, and is a clip composed of the grommet member and the pin member.

  Further, the clip according to the present invention includes a grommet member that is attached to the first member through the hole formed in the first member, and a pin receiving hole that is attached to the second member and formed in the grommet member. A clip comprising a pin member that is inserted into the grommet member and engages with the grommet member, and the locking portion between the grommet member and the pin member is in a state in which a load in the pull-out direction of a predetermined value or more does not act between the two Then, the pin member maintains a pin normal state in which a predetermined amount is inserted into the pin receiving hole, and when a pulling-out direction load greater than a predetermined value acts between the two, the pin member only has a predetermined stroke from the pin normal state. Has a locking structure that allows the pin to move in a direction of coming out of the pin receiving hole, and the grommet member is withdrawn above a predetermined value between the first member and the grommet member. In a state in which the loading direction load is not applied, the grommet normal state in which a predetermined amount is inserted into the hole is maintained, and when a pulling-out direction load of a predetermined value or more is applied to the first member, the grommet normal state is maintained. Further, it has a locking structure with the first member that allows the movement in the direction of coming out of the hole only by a predetermined stroke.

  Moreover, the clip by this invention penetrates the 1st hole formed in the 1st member, the 1st grommet member attached to the said 1st member, and the 2nd formed in the 2nd member A second grommet member that passes through the hole and is attached to the second member; one end is inserted into a first pin receiving hole formed in the first grommet member; and the other end is the second grommet A clip comprising a pin member inserted into a second pin receiving hole formed in the member, wherein the locking portion between the first grommet member and the pin member has a predetermined value or more between the two. In a state where the pull-out direction load does not act, the pin member maintains a normal pin state in which a predetermined amount is inserted into the first pin receiving hole, and when a pull-out direction load greater than a predetermined value acts between the two, The specified strike from the pin normal state The pin member has a locking structure that allows the pin member to move in a direction (withdrawal) from the first pin receiving hole, and locks the second grommet member and the pin member. The portion maintains a pin normal state in which a predetermined amount of the pin member is inserted into the second pin receiving hole in a state in which a load in the pull-out direction of a predetermined value or more does not act between the two, and a predetermined value or more is maintained between the two When a load in the pull-out direction is applied, the pin member has a locking structure that allows the pin member to move out of the second pin receiving hole only in a predetermined stroke from the normal state of the pin. The first grommet member maintains the normal state of the first grommet inserted into the first hole by a predetermined amount in a state where a predetermined load or more in the withdrawal direction does not act between the first grommet member and the first member. The first allowing the first grommet to move in the direction of exiting from the first hole only by a predetermined stroke from the normal state of the first grommet when a withdrawal direction load of a predetermined value or more acts between the first member and the first member. The second grommet member is inserted into the second hole in a predetermined amount in a state in which a load in the withdrawal direction of a predetermined value or more does not act between the second grommet member and the second member. When the second grommet normal state is maintained and a load in the withdrawal direction of a predetermined value or more acts between the second member and the second member, the second grommet normal state escapes from the second hole only by a predetermined stroke from the second grommet normal state. It has a locking structure with the second member that allows movement in the direction.

  According to the present invention, when a pulling force of a predetermined value or more is applied, in addition to the pin member moving in a direction in which only a predetermined stroke is pulled out from the grommet member, the grommet member is a member to which the grommet member is attached (fixed) It is possible to move in a direction that allows only a predetermined stroke to be released with respect to the member or the member to be fixed), and the amount by which the grommet member can be withdrawn is increased by the moving stroke of the grommet member relative to the first member.

  As a result, according to the present invention, for example, the front pillar and the garnish required for deploying the side airbag can be used even when the insertion shaft length of the pin member is not sufficiently obtained, for use in attaching the garnish to the front pillar. It is possible to take a sufficient gap between the two.

  First, an embodiment in which a fixing structure for a fixed member according to the present invention is applied to a fixing structure for attaching a garnish to a front pillar of an automobile will be described with reference to FIG. FIG. 1 is a cross-sectional plan view of a front pillar portion of an automobile cut along a horizontal plane.

  The front pillar (fixing member) 200 is configured by a box-shaped cross-sectional shape by an inner member 201 and an outer member 202 joined to each other. A reinforcement 203 is further provided inside the front pillar 200, and an internal space 204 of the front pillar 200 is narrowed.

  A garnish (fixed member) 205 is attached to the inner member 201 located on the vehicle interior side by the clip 10. A side airbag unit 207 is disposed inside the garnish 205, that is, in the garnish inner space 106 defined between the garnish 205 and the inner member 201.

  The clip 10 is a grommet pin type clip constituted by a grommet member 20 and a pin member 40. In the clip 10, the grommet member 20 is attached to the inner member 201, and the pin member 40 is attached to the attachment portion 208 of the garnish 205. Then, the clip 10 fixes the garnish 205 to the inner member 201 by coupling the grommet member 20 and the pin member 40. The grommet member 20 and the pin member 40 are each a molded product composed entirely of plastics.

  In FIG. 1, reference numeral 210 denotes a front windshield glass, 211 denotes a front portion of the side door, and 212 denotes a side door windshield glass.

  Next, one embodiment of the clip 10 according to the present invention will be described with reference to FIGS.

  The grommet member 20 includes a cylindrical portion 22 that is formed through a pin receiving hole (pin accommodating portion) 21 inside, and an umbrella-shaped flange portion 23 that is formed on the outer periphery of one end portion of the cylindrical portion 22.

  In the vicinity of the end portion of the cylindrical portion 22 on the flange portion 23 side, a first check pawl piece 25 is formed by a portal notch 24 with a gently sloping front surface and a steeply sloping back surface. The first check claw piece 25 protrudes from the outer periphery of the cylindrical portion 22, and has a first retaining strength (detachment load) and is a hole formed through the inner member 201 in this embodiment. A first locking portion that is inserted into 201 </ b> A and engages with the inner member 201 is provided. The first check claw pieces 25 are provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 22.

  On the distal end side of the cylindrical portion 22, more specifically, on the distal end side as viewed in the insertion direction of the grommet member 20 from the first check pawl piece 25 into the hole 201A, a portal-shaped notch 26 is used to provide a gentle front surface and a steep rear surface. A second check claw piece 27 is formed. The second check claw piece 27 protrudes from the outer periphery of the cylindrical portion 22 and has a second retaining strength stronger than the first retaining strength to make the inner member 201 a retaining engagement. It has a locking part. The second check claw pieces 27 are also provided at two locations that are rotated and displaced 180 degrees around the cylindrical portion 22.

  A third check claw piece 29 is formed by a notch 28 at the tip of the cylindrical portion 22. The third check claw piece 29 protrudes from the inner periphery of the cylindrical portion 22, that is, the pin receiving hole 21, and is inserted into the pin receiving hole 21 to a predetermined insertion position (maximum insertion position), which will be described later. And a third locking portion for engaging the pin member 40 with a third retaining strength that is weaker than the second retaining strength. The third check pawl pieces 29 are also provided at two locations that are rotationally displaced by 180 degrees around the cylindrical portion 22.

  A fourth check pawl piece 31 is formed by a portal-shaped notch 30 at an intermediate portion in the axial direction of the cylindrical portion 22. The fourth check claw piece 31 protrudes from the inner periphery of the cylindrical portion 22, that is, the pin receiving hole 21, and moves to a direction in which the pin receiving hole 21 is pulled out by a predetermined amount from the predetermined insertion position. A fourth locking portion that engages with the non-return-shaped distal end portion 43 and prevents the pin member 40 from falling out with a fourth retaining strength that is stronger than the first retaining strength and the third retaining strength. There is no. The fourth check claw pieces 31 are also provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 22. The third check claw piece 29 and the fourth check claw piece 31 are provided at positions that are rotated and displaced by 90 degrees around the circumference of the cylindrical portion 22.

  The pin member 40 includes a shaft portion 41 to be inserted into the pin receiving hole 21, a garnish (second member) mounting head 42 formed by a double flange formed at one end portion of the shaft portion 41, and the shaft portion 41. It has the other end part, ie, the non-return shape front-end | tip part 43 formed in the front-end | tip part. The check-shaped front end 43 has a truncated conical shape (an arrowhead shape with a return) formed by a gentle front surface 43A and a steep front surface 43B.

  A long groove (groove portion) 44 extending linearly in the axial direction is formed on the outer periphery of the shaft portion 41. A fourth check claw piece (engagement portion) 31 is fitted in the long groove 44 so as to be slidable in the axial direction. Thereby, rotation prevention of the pin member 40 with respect to the grommet member 20 is performed, and the magnitude | size of the radial direction of the cylindrical part 22 can be made small simultaneously.

  Further, in this embodiment, the steeply inclined rear surface 43B of the check-shaped tip portion 43 is formed in the radial direction by the depth of the long groove 44 at the site of the long groove 44, that is, at the site where the fourth check claw piece 31 is engaged. In addition, it is a vertical plane (a plane orthogonal to the central axis of the shaft portion 41). Further, the long groove 44 has an extension portion 44 </ b> A for receiving the tip portion of the fourth check claw piece 31 inside the check shape tip portion 43.

  In the present embodiment, the first retaining strength and the third retaining strength are released by the pull-out direction load acting on the grommet member 20 and the pin member 40 when the side airbag unit 207 is inflated. Strength. On the other hand, the second retaining strength and the fourth retaining strength maintain the retaining by the pull-out direction load acting on the grommet member 20 and the pin member 40 when the side airbag unit 207 is inflated. It is strength. The first retaining strength and the third retaining strength may be substantially equal, and the second retaining strength and the fourth retaining strength may be equal.

  The strength by which the grommet member 20 is prevented from coming off by the first check claw piece 25 and the second check claw piece 27 is such that the first check claw piece 25 and the second check claw piece 27 protrude outward. It can be quantitatively set according to the height and the inclination angle of the check surface. In the present embodiment, the outward protruding height of the second check claw piece 27 is higher than that of the first check claw piece 25, and the second check claw piece 27 has a check surface. The inclination angle is close to 90 degrees as compared with the first check claw piece 25.

  The retaining strength of the pin member 40 by the third check claw piece 29 and the fourth check claw piece 31 is such that the first check claw piece 25 and the second check claw piece 27 protrude inward. It can be set quantitatively depending on the height. In the present embodiment, the inward protruding height of the fourth check claw piece 31 is higher than that of the third check claw piece 29.

  5A shows that the cylindrical portion 22 of the grommet member 20 is inserted into the hole (opening) 201A of the inner member 201 by a predetermined amount, and the first check pawl piece 25 has a first retaining strength against the inner member 201. FIG. , The inner member 201 is sandwiched between the flange portion 23 and the first check claw piece 25, the grommet member 20 is fixed to the inner member 201, and the attachment portion 208 of the garnish 205 is fixed to the head 42. The pin member 40 is in a predetermined insertion position (maximum insertion position) where a predetermined amount is inserted into the pin receiving hole 21, and the non-return-shaped tip 43 of the pin member 40 is the third check claw piece of the grommet member 20. 29 shows a normal mounting state in which a non-reverse engagement is performed with the third retaining strength.

  In this normal mounting state, as shown in FIGS. 1 and 5A, the grommet member 20 is in the grommet normal state, and the pin member 40 is in the pin normal state. This state is maintained as long as a pull-out direction load of a predetermined value or more does not act between the grommet member 20 and the pin member 40.

  The first check claw piece 25 and the second locking claw piece 27 are bent inward in contact with the peripheral edge of the hole 201A when the grommet member 20 is inserted into the hole 201A of the inner member 201. After the insertion, it is restored and comes into contact with the periphery of the hole 201A.

  When the side airbag 107 is inflated, a predetermined load or more in the withdrawal direction acts between the grommet member 20 and the pin member 40 via the inner member 201 and the garnish 205, as shown in FIG. As described above, the check-shaped distal end portion 43 of the pin member 40 is disengaged from the check engagement between the grommet member 20 and the third check claw piece 29, and the pin member 40 moves in a direction of coming out of the pin receiving hole 21. . This movement is performed until the check shape tip portion 43 of the pin member 40 is engaged with the fourth check claw piece 31 of the grommet member 20, and the check shape tip portion 43 is the fourth check claw piece 31. It is stopped by engaging strongly with the fourth retaining strength.

  As described above, the locking portion between the grommet member 20 and the pin member 40 is a pin normal in which a predetermined amount of the pin member 40 is inserted into the pin receiving hole 21 in a state in which a load in the withdrawal direction of a predetermined value or more does not act between the two. The locking structure that maintains the state and allows the pin member 40 to move in the direction of pulling out from the pin receiving hole 21 only for a predetermined stroke from the normal state of the pin when a pull-out direction load of a predetermined value or more is applied between the two. It has become.

  When a pull-out direction load of a predetermined value or more is applied to the grommet member 20 and the pin member 40, the first check pawl piece 25 is opposite to the inner member 201 as shown in FIG. The grommet member 20 is released from the stop engagement and moves in a direction of coming out of the hole 201A. This movement is stopped when the second check claw piece 27 of the grommet member 20 is strongly engaged with the inner member 201 with the second retaining strength.

  As described above, the grommet member 20 maintains a grommet normal state in which a predetermined amount is inserted into the hole 201A in a state where a predetermined direction or more pull-out direction load does not act between the inner member 201 as the first member. When a pull-out direction load of a predetermined value or more is applied between the inner member 201 and the inner member 201, the inner member 201 has a locking structure with the inner member 201 that allows the grommet to move in the direction of pulling out from the hole 201A only by a predetermined stroke.

  As described above, when a pulling force of a predetermined value or more is applied to the grip 10, the grommet member 20 moves relative to the inner member 201 in addition to the pin member 40 moving in a direction in which the pin member 40 is pulled out with respect to the grommet member 40 only by a predetermined stroke. Thus, only the predetermined stroke moves out, so that the amount that can be pulled out increases by the moving stroke of the grommet member 20 relative to the inner member 201 as compared with the conventional one.

  As a result, the clip 10 can be used for attaching the garnish 205 to the inner member 201 of the front pillar 200, and the side airbag can be used even if the insertion shaft length of the pin member 40 cannot be sufficiently removed due to the space restriction of the internal space 204. A sufficient gap between the front pillar 200 and the garnish 205 necessary for the deployment of 107 can be taken as shown by the phantom lines in FIG.

  FIG. 6 shows another embodiment of a clip according to the invention.

  The clip 60 is a grommet / pin type clip constituted by three parts of a first grommet member 70, a second grommet member 90, and a pin member 110. In the clip 60, the first grommet member 70 is attached to the inner member 201, and the second grommet member 90 is attached to the attachment portion 208 of the garnish 205. The clip 60 fixes the garnish 205 to the inner member 201 by connecting the first grommet member 70 and the second grommet member 90 by the pin member 110. The first grommet member 70, the second grommet member 90, and the pin member 110 are each a molded product composed entirely of plastics.

  The first grommet member 70 is substantially the same component as the grommet member 20 of the above-described embodiment, and includes a cylindrical portion 72 that has a pin receiving hole 71 formed therein and an outer periphery of one end portion of the cylindrical portion 72. And an umbrella-like flange portion 73 formed on the surface.

  In the vicinity of the end portion of the cylindrical portion 72 on the flange portion 73 side, a first check claw piece 75 is formed by a gate-shaped notch with a gently sloping front surface and a steeply sloping back surface. The first check claw piece 75 protrudes from the outer periphery of the cylindrical portion 72 and is inserted into a hole 201A formed through the first member, in this embodiment, the inner member 201, with a first retaining strength. Thus, the first locking portion that engages with the inner member 201 is provided. The first check pawl pieces 75 are provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 22.

  The front end side of the cylindrical portion 72, specifically, the front end side viewed from the first check pawl piece 75 in the insertion direction of the first grommet member 70 with respect to the hole 201 </ b> A is formed with a portal notch so A second check claw piece 77 is formed on the oblique back surface. The second check pawl piece 77 protrudes from the outer periphery of the cylindrical portion 72, and has a second retaining strength stronger than the first retaining strength to make the inner member 201 a retaining engagement. It has a locking part. The second check claw pieces 77 are also provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 72.

  A third check pawl piece 79 is formed at the tip of the cylindrical portion 72 by a notch. The third check pawl piece 79 protrudes into the inner periphery of the cylindrical portion 72, that is, the pin receiving hole 71, and is inserted into the pin receiving hole 71 up to a predetermined insertion position (maximum insertion position), which will be described later. A third locking portion that engages with the first check-shaped distal end portion 113 and prevents the pin member 110 from being pulled out with a third retaining strength that is weaker than the second retaining strength. The third check pawl pieces 79 are also provided at two locations that are rotationally displaced by 180 degrees around the cylindrical portion 22.

  A fourth check pawl piece 81 is formed in the middle portion of the cylindrical portion 72 in the axial direction by a portal notch. The fourth check pawl piece 81 protrudes into the inner periphery of the cylindrical portion 72, that is, the pin receiving hole 71, and moves to a direction in which the pin receiving hole 71 is pulled out by a predetermined amount from the predetermined insertion position. A fourth engagement member that engages with the first check-shaped distal end portion 113 to prevent the pin member 110 from falling out with a fourth retaining strength stronger than the first retaining strength and the third retaining strength. It has a stop. The fourth check claw pieces 81 are also provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 72. The third check claw piece 79 and the fourth check claw piece 81 are provided around the circumference of the cylindrical portion 72 at positions displaced by 90 degrees.

  The second grommet member 90 is also substantially the same component as the grommet member 20 of the above-described embodiment, and includes a cylindrical portion 92 that is formed through the pin receiving hole 91 inside, and an outer periphery of one end portion of the cylindrical portion 92. And an umbrella-shaped flange portion 93 formed on the surface.

  In the vicinity of the end portion of the cylindrical portion 92 on the flange portion 93 side, a fifth check claw piece 95 is formed by a gate-shaped notch with a gently sloping front surface and a steeply sloping back surface. The fifth check claw piece 95 protrudes from the outer periphery of the cylindrical portion 72, and has a fifth retaining strength that is weaker than the second retaining strength, and attaches the second member, in this embodiment, the garnish 205. A fifth locking portion that is inserted into a hole 208 </ b> A penetratingly formed in the member 208 and engages with the attachment member 208 to prevent it from coming off is formed. The fifth check claw pieces 95 are provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 92.

  The distal end side of the cylindrical portion 92, specifically, the distal end side viewed from the fifth check pawl piece 95 in the insertion direction of the second grommet member 90 with respect to the hole 208A, has a gradual front surface and a steep slope. A sixth check claw piece 97 is formed by the oblique back surface. The sixth check claw piece 97 protrudes from the outer periphery of the cylindrical portion 92, and has a sixth retaining strength stronger than the fifth retaining strength to make the retaining member 208 a retaining engagement. It has a locking part. Sixth check pawl pieces 97 are also provided at two locations that are rotationally displaced by 180 degrees around the cylindrical portion 92.

  A seventh check claw piece 99 is formed at the tip of the cylindrical portion 92 by a notch. The seventh check claw piece 99 protrudes from the inner periphery of the cylindrical portion 92, that is, the pin receiving hole 91, and is inserted into the pin receiving hole 91 to a predetermined insertion position (maximum insertion position), which will be described later. And a second locking portion for engaging the pin member 110 with a seventh retaining strength that is weaker than the sixth retaining strength. Sixth check claw pieces 99 are also provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 92.

  An eighth check claw piece 101 is formed by a portal-shaped notch in the middle portion of the cylindrical portion 92 in the axial direction. The eighth check claw piece 101 protrudes from the inner periphery of the cylindrical portion 92, that is, the pin receiving hole 91, and the pin member 110, which will be described later, has moved in a direction to pull out the pin receiving hole 91 from the predetermined insertion position. 8th engagement which engages with the 2nd non-return-shaped front-end | tip part 114 of this, and retains the pin member 110 with the 8th retaining strength stronger than the said 5th retaining strength and the said 7th retaining strength. It has a stop. The eighth check pawl pieces 101 are also provided at two locations that are rotationally displaced by 180 degrees around the circumference of the cylindrical portion 92. The seventh check claw piece 99 and the eighth check claw piece 101 are provided at positions that are rotated and displaced by 90 degrees around the circumference of the cylindrical portion 92.

  The pin member 110 is inserted into the pin receiving hole 91 of the second grommet member 90 provided on the same axis as the shaft portion 111 inserted into the pin receiving hole 71 of the first grommet member 70. A shaft portion 112, a first check-shaped tip portion 113 formed at the tip portion of the shaft portion 111, and a second check-shape tip portion 114 formed at the tip portion of the shaft portion 112. The first check shape tip portion 113 and the second check shape tip portion 114 each have a frustoconical shape (arrowhead shape with return) formed by the gradual front surfaces 113A and 114A and the steep back surfaces 113B and 114B, respectively. Yes.

  Long grooves 115 and 116 extending linearly in the axial direction are formed on the outer circumferences of the shaft portions 111 and 112. A fourth check pawl piece 81 is fitted into the long groove 115 so as to be slidable in the axial direction. Thereby, rotation prevention of the pin member 110 with respect to the 1st grommet member 70 is performed, and the magnitude | size of the radial direction of the cylindrical part 72 can be made small simultaneously. The eighth check pawl piece 101 is fitted in the other long groove 116 so as to be slidable in the axial direction. Accordingly, the pin member 110 is prevented from rotating with respect to the second grommet member 90, and at the same time, the radial size of the cylindrical portion 92 can be reduced.

  In this embodiment, the steeply inclined back surfaces 113B and 114B of the first and second check-shaped tip portions 113 and 114 are located at the long grooves 115 and 116, that is, the fourth check claw piece 81 and the eighth check piece. In the part where the non-return claw piece 101 is engaged, it is enlarged in the radial direction by the depth of the long grooves 115 and 116, and is a vertical surface (a surface perpendicular to the central axis of the shaft portions 111 and 112). Further, the long grooves 115 and 116 are extended portions 115A for receiving the tip portions of the fourth check claw piece 71 and the eighth check claw piece 101 inside the first and second check shape tip portions 113 and 114, respectively. 116A.

  In the present embodiment, the first retaining strength, the third retaining strength, the fifth retaining strength, and the seventh retaining strength are the first when the side airbag unit 107 is inflated. The strength is such that the stopper is released by the load in the pull-out direction acting on the second grommet members 70 and 90 and the pin member 110. On the other hand, the second retaining strength, the fourth retaining strength, the sixth retaining strength, and the eighth retaining strength are the first when the side airbag unit 107 is inflated. This is the strength that prevents the second grommet members 70 and 90 and the pin member 110 from retaining due to the load in the pull-out direction. The first retaining strength, the third retaining strength, the fifth retaining strength, and the seventh retaining strength may be substantially equal, and the second retaining strength and the The fourth retaining strength, the sixth retaining strength, and the eighth retaining strength may be the same.

  The retaining strength of the first grommet member 70 by the first check claw piece 75 and the second check claw piece 77, the second check claw piece 95, and the second check claw piece 97 by the second check claw piece 97. The retaining strength of the grommet member 90 can be quantitatively set by the protruding height of the check pawl pieces to the outside and the inclination angle of the check surface. In the present embodiment, the outward protruding height of the second check claw piece 77 and the sixth check claw piece 97 is higher than that of the first check claw piece 75 and the fifth check claw piece 95. The inclination angle of the check surfaces of the second check claw piece 77 and the sixth check claw piece 97 is higher than that of the first check claw piece 75 and the fifth check claw piece 95. The angle is close to 90 degrees.

  The retaining strength of the pin member 110 by the third check claw piece 79, the fourth check claw piece 91, the sixth check claw piece 99, and the eighth check claw piece 101 is determined by the check claw pieces. It can be set quantitatively by the inward protrusion height of the. In the present embodiment, the inward protruding heights of the sixth check claw piece 91 and the eighth check claw piece 101 are higher than those of the third check claw piece 79 and the sixth check claw piece 99. Then it ’s getting higher.

  In FIG. 6A, the cylindrical portion 72 of the first grommet member 70 is inserted into the hole (opening) 101 </ b> A of the inner member 101 by a predetermined amount, and the first locking claw piece 75 is inserted into the inner member 101. The inner member 101 is sandwiched between the flange portion 73 and the first check pawl piece 75 with the retaining strength, and the first grommet member 70 is fixed to the inner member 101, and the second grommet member 90. Is inserted into the hole (opening) 208A of the attachment member 208 of the garnish 205 by a predetermined amount, and the fifth locking claw piece 95 is reversely engaged with the attachment member 208 with the fifth retaining strength, The mounting member 208 is sandwiched between the flange portion 93 and the fifth check claw piece 95, the first grommet member 70 is fixed to the garnish 205, and one shaft portion 111 of the pin member 110 is connected to the first grommet member 70. Pin acceptance In the predetermined insertion position (maximum insertion position) in which a predetermined amount is inserted into 71, the first check-shaped tip portion 113 of the pin member 110 is connected to the third check claw piece 79 of the first grommet member 70. The other shaft portion 112 of the pin member 110 is in a predetermined insertion position (maximum insertion position) in which a predetermined amount is inserted into the pin receiving hole 91 of the second grommet member 90. The second non-return-shaped front end portion 114 of the pin member 110 is shown in a normal attachment state in which the sixth non-contact claw piece 99 of the second grommet member 90 is non-reversely engaged with a sixth retaining strength. .

  In this normal attachment state, as shown in FIG. 6 (a), the first grommet member 70 is in the first grommet normal state, the second grommet member 90 is in the second grommet normal state, and the pin The member 110 is in a pin normal state. This state is maintained as long as a pull-out direction load of a predetermined value or more does not act between the first grommet member 70 and the second grommet member 90.

  The first check claw piece 75 and the second locking claw piece 77 are in contact with the periphery of the hole 201A when the first grommet member 60 is inserted into the hole 201A of the inner member 201. The sixth check claw piece 95 and the seventh locking claw piece 97 are inserted into the hole 208A of the mounting member 208 by the second check claw piece 95 and the seventh locking claw piece 97. When it is done, it comes into contact with the periphery of the hole 208A and bends inward, and is restored after insertion and comes into contact with the periphery of the hole 208A.

  As in the case shown in FIG. 1, the first grommet member 70 and the inner member 201 and the garnish 205 are inflated by the inflating operation of the side airbag 207 disposed between the inner member 201 and the garnish 205. When a pull-out direction load of a predetermined value or more acts between the second grommet member 90, as shown in FIG. 6B, the first check-shaped tip portion 113 of the pin member 110 is the first The grommet member 70 and the third check claw piece 79 are disengaged from the non-return engagement, and the pin member 110 moves in the direction of coming out of the pin receiving hole 71. This movement is performed until the first check-shaped distal end portion 113 of the pin member 110 is reversely engaged with the fourth check claw piece 81 of the first grommet member 70, and the first check-shaped distal end. The portion 113 stops when the fourth check pawl piece 81 is strongly engaged with the fourth check pawl piece 81 with the fourth retaining strength.

  As described above, in the engaging portion between the first grommet member 70 and the pin member 110, the pin member 110 is inserted into the pin receiving hole 71 by a predetermined amount in a state where a load in the withdrawal direction of a predetermined value or more does not act therebetween. The pin normal state is maintained, and when a pull-out direction load greater than or equal to a predetermined value acts between the two pins, the pin member 110 is allowed to move in the direction of pulling out from the pin receiving hole 71 only by a predetermined stroke from the pin normal state. It has a locking structure.

  Further, when a pull-out direction load of a predetermined value or more acts between the first grommet member 70 and the second grommet member 90, as shown in FIG. The non-return-shaped front end portion 114 is disengaged from the non-return engagement between the second grommet member 90 and the sixth non-return claw piece 99, and the pin member 110 moves in the direction of coming out of the pin receiving hole 91. This movement is performed until the second check-shaped tip 114 of the pin member 110 is engaged with the eighth check claw piece 101 of the second grommet member 90, and the second check-shaped tip. The portion 114 is stopped by strongly engaging with the eighth check pawl piece 101 with the eighth retaining strength.

  In conjunction with these operations, the first locking claw piece 75 is disengaged from the non-reverse engagement with the inner member 201 and the first grommet member 70 moves in the direction of coming out of the hole 201A. This movement is stopped when the second check claw piece 77 of the first grommet member 70 is strongly engaged with the inner member 201 with the second retaining strength.

  As described above, the first grommet member 70 is inserted into the hole 201A by a predetermined amount in a state where a predetermined load or more in the pulling direction load does not act between the first grommet member 70 and the inner member 201 as the first member. An inner member 201 that maintains the state and allows a predetermined stroke or more of the inner member 201 to move out of the hole 201A by a predetermined stroke from the normal state of the first grommet when a predetermined load or more is applied. This has a locking structure.

  Further, the fifth locking claw piece 95 is disengaged from the non-reverse engagement with the mounting member 208, and the second grommet member 90 moves in the direction of coming out from the hole 208A. This movement is stopped by strongly engaging the sixth check claw piece 97 of the second grommet member 90 with the sixth retaining strength.

  As described above, the second grommet member 90 is inserted into the hole 208A by a predetermined amount in a state where a predetermined load or more in the pulling direction load does not act between the second grommet member 90 and the mounting member 208 of the garnish 205 as the second member. A garnish that maintains a normal state of two grommets and allows a predetermined stroke or more to move out of the hole 108A from the normal state of the second grommet when a load in a pulling direction greater than a predetermined value is applied to the mounting member 208. 205 has a locking structure.

  As described above, when a pulling force of a predetermined value or more is applied to the grip 60, the pin member 1100 moves in a direction in which the pin member 1100 comes out only by a predetermined stroke with respect to both the first grommet member 70 and the second grommet member 90. In addition, since the first grommet member 70 moves in a direction in which the first grommet member 70 is pulled out only by a predetermined stroke with respect to the inner member 201, the second grommet member 90 moves in a direction in which the first grommet member 90 is pulled out only by a predetermined stroke with respect to the attachment member 208 of the garnish 205. Thus, the amount that can be removed is greatly increased as compared with the conventional one.

  As a result, the clip 60 is used for attaching the garnish 205 to the inner member 201 of the front pillar 200, and even if the insertion shaft length of the pin member 110 cannot be sufficiently removed due to the space restriction of the internal space 204, the side airbag The gap between the front pillar 200 and the garnish 205 required for the development of the 107 can be made sufficiently large.

  The following summarizes the clips of the two embodiments described above.

(1) A cylindrical grommet member that is attached to the first member through a hole formed in the first member, and a pin receiving hole that is attached to the second member and formed in the grommet member. A clip comprising a pin member engaged with the grommet member,
The grommet member has a first locking portion that engages with the first member with a first retaining strength and a distal end side when viewed from the first locking portion in the insertion direction with respect to the hole. A second locking portion having a second retaining strength stronger than the first retaining strength and engaging with the first member, and inserted into the pin receiving hole up to a predetermined insertion position. A third locking portion that engages with the pin member and holds the pin member with a third retaining strength that is weaker than the second retaining strength, and moves in a direction to escape a predetermined amount from the predetermined insertion position And a fourth locking portion that engages with the pin member and retains the pin member with a fourth retaining strength that is stronger than the first retaining strength and the third retaining strength.

  (2) The first locking portion and the second locking portion are configured as a non-return locking portion that reversely engages with the first member, and the pin member has the third locking portion. And the fourth locking portion are provided with a non-return locking portion, and each retaining strength is set by setting a non-return shape of each locking portion.

(3) A cylindrical first grommet member that is attached to the first member through the first hole formed in the first member, and a second hole formed in the second member. A cylindrical second grommet member that penetrates and is attached to the second member, and one end is inserted into a first pin receiving hole formed in the first grommet member, and the other end is inserted into the second grommet member. A clip composed of a pin member inserted into a second pin receiving hole formed in the grommet member,
The first grommet member has a first locking portion that engages with the first member with a first retaining strength, and an insertion direction from the first locking portion into the first hole. And a second locking portion that has a second locking strength that is stronger than the first locking strength and that engages with the first member, and a second insertion portion that reaches the predetermined insertion position. A third locking portion that engages with one end portion of the pin member inserted into the pin receiving hole of the first pin and holds the pin member with a third retaining strength that is weaker than the second retaining strength; A fourth retaining member that engages with one end portion of the pin member that has moved in the direction of slipping out from the predetermined insertion position by a predetermined amount and is stronger than the first retaining strength and the third retaining strength. Having a fourth locking portion for preventing the removal with strength,
The second grommet member has a fifth locking portion engaged with the second member with a fifth locking strength weaker than the second locking strength, and the fifth locking portion. A sixth lock which is on the distal end side when viewed in the insertion direction with respect to the first hole and has a sixth retaining strength stronger than the fifth retaining strength to make the second member a retaining engagement. The pin member is engaged with the other end portion of the pin member inserted into the second pin receiving hole up to a predetermined insertion position, and the pin member has a seventh retaining strength weaker than the sixth retaining strength. A seventh locking portion that prevents the pin member from engaging with the other end portion of the pin member that has moved in a direction that is pulled out from the predetermined insertion position by a predetermined amount, thereby engaging the pin member with the fifth retaining strength and the seventh. With the eighth retaining strength stronger than the retaining strength of That has a locking portion of the eighth.

  (4) The first locking portion and the second locking portion are configured as a non-return locking portion that non-reversely engages with the first member, and the fifth locking portion and the sixth locking portion. The locking portion is configured as a non-return locking portion that reversely engages with the second member, and at one end of the pin member, the third locking portion and the fourth locking portion are non-returned. A first check locking portion to be engaged is provided, and the other end of the pin member is a second check lock engaged with the seventh locking portion and the eighth locking portion. Stop portions are provided, and each retaining strength is set by setting a check shape of each locking portion.

It is a plane sectional view showing one embodiment which applied a fixing structure of a member to be fixed by the present invention to a fixing structure which attaches a garnish to a front pillar of a car. It is a front view (A arrow line view of FIG. 4) which shows one Embodiment of the clip by this invention. It is a side view (B arrow view of FIG. 4) which shows one Embodiment of the clip by this invention. FIG. 2 is a plan view showing one embodiment of a clip according to the present invention. (A)-(c) is sectional drawing (sectional drawing along line IV-IV of FIG. 4) which shows the effect | action state of the clip by this embodiment. (A), (b) is sectional drawing which shows the operation state of other embodiment of the clip by this invention.

Explanation of symbols

10 clip 20 grommet member 21 pin receiving hole 22 cylindrical portion 23 flange portion 25 first check claw piece 27 second check claw piece 29 third check claw piece 31 fourth check claw piece 40 pin Member 41 Shaft portion 42 Head portion 43 Non-return shape tip portion 60 Clip 70 First grommet member 71 Pin receiving hole 72 Cylindrical portion 73 Flange portion 75 First check claw piece 77 Second check claw piece 79 Second 3 check claw pieces 81 fourth check claw pieces 90 second grommet members 93 flange portions 95 fifth check claw pieces 97 sixth check claw pieces 99 seventh check claw pieces 101 eighth Non-return claw piece 110 Pin member 111, 112 Shaft portion 113 First non-return shape tip portion 114 Second non-return shape tip portion 200 Front pillar 205 Garnish 207 Side air bag unit

Claims (8)

A grommet member attached to one of the fixing member and the fixed member and provided with a pin accommodating portion; and a grommet member attached to either the fixing member or the fixed member and inserted into the pin accommodating portion Using a pin member held by
The grommet member is attached so as to be movable only in a predetermined stroke in a direction away from the fixing member or the fixed member to which the grommet member is attached,
The pin member is accommodated in the pin accommodating portion so as to be movable only by a predetermined stroke in a direction away from the grommet member,
Due to the action of the fixed member, the grommet member moves in a direction to separate from the fixed member to which the grommet member is attached or the fixed member, and the pin member is released from the holding state with the grommet member. The fixing member fixing structure is characterized in that the grommet member and the pin member are maintained attached to the fixing member and the fixed member even after moving in a direction away from the grommet member. Two grommet members attached to the fixing member and the to-be-fixed member, each having a pin accommodating portion, one end side being inserted into the pin accommodating portion of the one grommet member and the other end side being the pin accommodating portion of the other grommet member A pin member that is inserted into and held by both grommet members,
The grommet member is attached so as to be movable only by a predetermined stroke in a direction to be separated from the fixed member or the fixed member,
The pin member is accommodated in the pin accommodating portion so as to be movable only by a predetermined stroke in a direction separating from both of the two grommet members,
Due to the action of the fixed member, the grommet member moves in a direction away from the fixed member or the fixed member, and the pin member is released from the holding state with the grommet member and is separated from the grommet member. A fixing structure for a fixed member, wherein the grommet member remains attached to the fixing member and the fixed member even after moving in the direction.   The grommet member has two locking portions that can be locked to the fixing member and / or the fixed member, and the detachment loads of the two locking portions are set to different values. The fixing structure of the member to be fixed according to claim 1 or 2.   When the locking portion is inserted into the opening provided in the fixing member and / or the fixed member, the locking portion abuts on the periphery of the opening and bends inward, and is restored after insertion to the periphery of the opening. It consists of an elastic locking piece having an abutting part that abuts, and the abutting part of the locking part at a position close to the fixing member and / or the fixed member has a different angle with respect to the peripheral edge of the opening 4. The fixing structure for a fixed member according to claim 3, wherein the separation loads are set to different values.   5. The fixing of the fixed member according to claim 1, wherein a groove portion that receives a locking portion of the grommet member so as to be relatively movable is formed on an outer periphery of the pin member. Construction.   It is a clip used for the fixation structure of the to-be-fixed member as described in any one of Claim 1 to 5, Comprising: The clip which consists of the said grommet member and the said pin member. A cylindrical grommet member that is attached to the first member through a hole formed in the first member, and is inserted into a pin receiving hole that is attached to the second member and formed in the grommet member. A clip comprising a pin member engaged with a grommet member,
The locking portion between the grommet member and the pin member maintains a pin normal state in which a predetermined amount of the pin member is inserted into the pin receiving hole in a state in which a load in a pulling direction greater than a predetermined value does not act between the grommet member and the pin member. In addition, when a pull-out direction load greater than or equal to a predetermined value acts between the both, the pin member has a locking structure that allows the pin member to move in a direction of pulling out from the pin receiving hole only for a predetermined stroke from the normal state of the pin. ,
The grommet member maintains a grommet normal state in which a predetermined amount of the grommet is inserted into the hole and is not in contact with the first member in a state where a predetermined load or more in the pulling direction load does not act between the grommet member and the first member. And a locking structure with the first member that allows movement in a direction of slipping out of the hole only by a predetermined stroke from the grommet normal state when a pulling-out direction load of a predetermined value or more is applied. clip. A cylindrical first grommet member that is attached to the first member through the first hole formed in the first member, and a second hole formed in the second member. A cylindrical second grommet member attached to the second member, and one end inserted into a first pin receiving hole formed in the first grommet member and the other end to the second grommet member A clip composed of a pin member inserted into the formed second pin receiving hole,
The locking portion between the first grommet member and the pin member has a predetermined amount of the pin member inserted into the first pin receiving hole in a state where a predetermined load or more in the pull-out direction does not act between the both. When the pin normal state is maintained and a pull-out direction load greater than or equal to a predetermined value is applied between the two, the pin member moves in the direction of pulling out from the first pin receiving hole only by a predetermined stroke from the pin normal state. It has a locking structure that allows
The locking portion between the second grommet member and the pin member has a predetermined amount of the pin member inserted into the second pin receiving hole in a state where a load in a pulling-out direction of a predetermined value or more does not act between the locking portions. When the pin normal state is maintained and a pull-out direction load greater than or equal to a predetermined value is applied between the two, the pin member moves in the direction of pulling out from the second pin receiving hole only by a predetermined stroke from the pin normal state. It has a locking structure that allows
The first grommet member maintains a first grommet normal state in which a predetermined amount is inserted into the first hole in a state where a predetermined direction or more pull-out direction load does not act between the first grommet member, When a pull-out direction load of a predetermined value or more is applied between the first member and the first member, the first grommet is allowed to move in a direction of pulling out from the first hole only by a predetermined stroke from the normal state. Having a locking structure with the member,
The second grommet member maintains a second grommet normal state in which a predetermined amount of the second grommet member is inserted into the second hole in a state where a predetermined load or more in the pull-out direction load does not act between the second member and the second member. When a withdrawal direction load greater than or equal to a predetermined value acts between the second member and the second member, the second grommet is allowed to move in the direction of exiting from the second hole only by a predetermined stroke from the normal state. A clip having a locking structure with a member.

Images