JP2009008249A - Two-piece clip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-piece clip that can be detached from a mounting hole easily and reliably. <P>SOLUTION: The two-piece clip 10 includes a grommet 20 and a pin 30. The pin 30 has a flange portion 31, a shaft portion 32, and a first lock member 40 to be engaged with the peripheral edge of a mounting hole 3. A first lock groove 35 is formed in the outer periphery of the distal end portion of the shaft portion 32, and, further, a second lock groove 36 is formed in the outer periphery of the shaft portion 32 on the proximal end side of the first lock groove 35. The grommet 20 has a cylinder portion 22, an opening 23 through which the first lock member 40 is projected and retracted, and an elastic member 25 deflectably formed at the distal end of the cylinder portion 22 and adapted to be engaged with the first lock groove and the second lock groove; when the elastic member 25 is engaged with the first lock groove 35 of the pin 30, the first lock member 40 protrudes from the opening 23; and, when the elastic member 25 is engaged with the second lock groove 36, the first lock member 40 is pressed by the peripheral edge of the opening 23 and retracted into the opening 23. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a two-piece clip that includes a grommet and a pin, and is used, for example, to attach one part of a vehicle to the other part.

  For example, a cover member may be detachably attached to an opening of a vehicle body panel of a vehicle. In this way, a grommet and a pin are used to attach the other part to one part in a detachable manner. Two piece clips are known.

  As a conventional two-piece clip of this type, the following Patent Document 1 includes a grommet (female member) and a pin (male member), and the grommet is divided from a heel and a cleaver through a slit. An elastic leg piece extending and bendable, the pin having a head and a shaft extending from the head, and the tip of the elastic leg piece is bent inward. Furthermore, a two-piece clip (expansion rivet for plate polymerization) is disclosed in which the shaft portion has a shape in which the distal end portion and the proximal end portion are reduced in diameter to form a recess, and the intermediate portion is expanded in diameter. Yes.

  When the pin is inserted shallowly into the grommet, the tip of the elastic leg piece engages with the recess at the tip of the shaft, and the pin is held by the grommet. In this state, the grommets are inserted into the mounting holes of one part and the insertion holes of the other part, and the pins are further pushed in, so that the plurality of elastic leg pieces are pressed from the inside by the enlarged diameter part in the middle of the shaft part and expanded. The diameter is engaged with the peripheral edge of the mounting hole of one component, and the flange is brought into contact with the other component so that both components are connected via the two-piece clip. In this state, by pushing the pin further deeply, the protrusions of the elastic leg pieces engage with the recesses on the proximal end side of the shaft part, and the plurality of elastic leg pieces are reduced in diameter, so that the clip is pulled out from each hole. Thus, the other part can be removed from the one part.

  Patent Document 2 below includes a grommet (outer cylinder) and a pin (insert), and the grommet includes a flange part, a cylinder part protruding from the flange part in a cylindrical shape, and the cylinder part. A pair of locking pieces formed so as to be able to bend through a U-shaped slit, and an engaging portion (connecting portion) projecting from the inside of the tip of the side wall of the cylindrical portion. On the other hand, a plurality of the pins are formed along a long plate-like rod body, a head portion connected to a base end portion of the rod body and having a diameter larger than that of the rod body, and a longitudinal direction of the rod body. A two-piece clip (fastener) provided with a clip stopper that engages with the engaging portion is disclosed.

Then, when the pin is inserted shallowly into the grommet, the clip stopper on the tip end side of the rod body engages with the engaging portion of the grommet, and the pin is held by the grommet. And by inserting into the insertion hole of the other component, the pair of locking pieces engage with the peripheral edge of the mounting hole of one component, the flange portion comes into contact with the other component, and both components are connected. When the pins are further pushed in, the heads of the pins are fitted between the pair of locking pieces, whereby the bending of the pair of locking pieces is suppressed and the clip is firmly fixed to the mounting hole. In this state, by pushing the pin further deeper, the head of the pin moves downward from the position between the pair of locking pieces, the locking piece can be bent, and by pulling out the clip from each hole, Both parts can be removed from each other.
Japanese Utility Model Publication No. 4-34507 No. 1-337207

  In Patent Document 1, by pushing a pin into the grommet, each elastic leg piece on the outer periphery of the grommet is pressed from the inside to increase the diameter. However, if the elastic leg piece remains expanded for a long period of time, the elastic leg piece changes over time, and as a result, the elastic restoring force becomes weak, so that the clip is pulled out from each hole. Even if the pin is further pushed in, each elastic leg piece does not return to the original reduced diameter state, and there is a disadvantage that it is difficult to pull out the clip from each hole.

  Further, in Patent Document 2, from the state where the clip is fixed to the mounting hole, the pin is further pushed to move the head from between the pair of locking pieces so that the pair of locking pieces can be bent. Thus, the clip can be removed from the hole, but in this state, the pair of locking pieces provided on the grommet remain engaged with the periphery of the mounting hole. For this reason, when the clip is pulled out from each hole, the pair of locking pieces may be caught on the periphery of the mounting hole. In this case, it is difficult to pull out the clip from each hole, which hinders the workability of removing both parts.

  Accordingly, an object of the present invention is to provide a two-piece clip that can be easily and reliably removed from the mounting hole.

  In order to achieve the above object, a first aspect of the present invention is a two-piece clip including a grommet and a pin inserted into the grommet, and fixed to a mounting hole. The pin includes a flange portion and the flange portion. And a first locking piece that is provided on the outer periphery of the shaft portion so as to be deflectable and engages with the periphery of the mounting hole. The grommet is inserted with the shaft portion. And a cylindrical portion formed to have an inner diameter smaller than the outer diameter of the flange portion, and an opening formed on a peripheral wall of the cylindrical portion for allowing the first locking piece to protrude and retract, and the pin is provided on the grommet. Pushed to depth, the first locking piece protrudes from the opening and holds the pin against the grommet in a state where a predetermined gap is provided between the grommet and the flange. First engaging means is provided. The first locking piece is pressed against the periphery of the opening by further pressing the pin into the grommet from the state in which the pin is held against the grommet by the first engagement means. And a second engagement means for holding the pin in the grommet at the pushed-in position. The two-piece clip is provided. .

  According to the invention, the pin is pushed into the grommet, the shaft portion of the pin is inserted into the inner periphery of the grommet, and the first engaging piece of the pin is removed from the opening provided in the grommet by the first engagement means. In the protruded state, the pin can be prevented from being detached from the grommet, and in this state, by inserting the cylindrical portion of the grommet and the shaft portion of the pin into the mounting hole, One locking piece can be engaged to attach the clip to the attachment hole. At this time, if there is an attachment part to be fixed to the attached part having the attachment hole, after inserting the cylindrical part of the grommet and the shaft part of the pin into the insertion hole provided in the attachment part, Insert it.

  In this state, since a predetermined gap is formed between the grommet and the flange portion, the pin can be further pushed into the grommet. Therefore, when it is desired to remove the clip from the mounting hole, by further pushing the pin in the above state, the first locking piece protruding from the opening is pressed against the periphery of the opening and bent inward, and then pulled from the opening. In addition, the pin is held on the grommet by the second engagement means at the pushed-in position. As a result, the first locking piece is disengaged from the periphery of the attachment hole, and the clip can be removed from the attachment hole by pulling the clip out of the attachment hole in this state. Thus, when removing the clip from the attachment hole, the clip can be easily removed from the attachment hole by a relatively simple operation of pushing the pin into the grommet and then pulling it out.

  In addition, this clip is not configured to force the outer periphery of the grommet to be expanded by pushing the pin as in the prior art, so the expanded portion has changed over time and can be removed. There is no inconvenience of disappearing. And by pushing the pin deeply and holding the pin in the grommet by the second engaging means, the first locking piece of the pin is forcibly reduced in diameter, so when pulling out the clip from the mounting hole, The clip can be reliably removed without being caught on the periphery. Moreover, since it is not necessary to provide the elastic part which expands greatly in a grommet, a comparatively hard synthetic resin material etc. can be employ | adopted, for example, and the room for material selection spreads.

  According to a second aspect of the present invention, in the first aspect, the first engagement means includes a first locking groove formed on an outer periphery of a distal end portion of the shaft portion of the pin, and a distal end portion of the cylindrical portion of the grommet. The second engagement means is formed on the outer periphery of the shaft portion of the pin closer to the base end portion than the first locking groove. A two-piece clip comprising a groove and the elastic piece is provided.

  According to the above invention, when the pin is pushed shallowly into the grommet, the elastic piece of the grommet is engaged with the first locking groove of the pin, and the first locking piece of the pin protrudes from the opening of the grommet. A pin can be assembled to the grommet. When the pin is pushed further deeply in this state, the elastic piece is disengaged from the first locking groove and engaged with the second locking groove, and the first locking piece protruding from the opening is pressed against the periphery of the opening. The grommet can be held by the pin at the pushed-in position.

  A third aspect of the present invention is the two-piece clip according to the second aspect, wherein the first locking groove is formed to be deeper with respect to the outer peripheral surface of the shaft portion than the second locking groove. Is to provide.

  According to the above invention, since the first locking groove is formed deeper than the second locking groove, when the elastic piece is engaged with the first locking groove, the first locking groove The elastic piece can be made difficult to come off. Therefore, when the elastic piece is engaged with the first locking groove, the state where the first locking piece protrudes from the opening can be firmly held, and the clip in this state is inserted into the mounting hole and fixed. Can be stably maintained.

  Further, when the elastic piece is engaged with the second locking groove, the elastic piece is expanded more than when the elastic piece is engaged with the first locking groove. It is easy to return to the stop groove side. Therefore, after pulling the first locking piece from the opening and removing the clip from the mounting hole, the elastic piece was easily engaged with the first locking groove by pushing the pin a little against the grommet. Since it can return to a state and can return to the state which protruded the 1st locking piece from the opening part, it becomes easy to reuse a clip.

  According to a fourth aspect of the present invention, in the first aspect, the first engagement means includes a first locking groove formed on an outer periphery of a tip end portion of the shaft portion of the pin, and a tip end portion of the cylindrical portion of the grommet. The second engagement means is a second flexible member formed on the base end side of the shaft portion of the pin with respect to the first locking piece. A two-piece clip comprising a locking piece and a peripheral edge of the opening of the grommet on the base end side of the cylindrical portion is provided.

  According to the above invention, when the pin is pushed shallowly into the grommet, the elastic piece of the grommet is engaged with the first locking groove of the pin, and the first locking piece of the pin protrudes from the opening of the grommet. The pin can be retained by the grommet. When the pin is pushed further deeply in this state, the elastic piece is released from the first locking groove, and the first locking piece protruding from the opening is pressed by the periphery of the opening and bent inward to be drawn from the opening. Thus, the second locking piece on the base end side of the pin engages with the base end side peripheral edge of the cylindrical portion of the opening of the grommet, and the pin can be held by the grommet at the pushed-in position.

  In a fifth aspect of the present invention, in any one of the second to fourth aspects, the shaft portion proximal end side of the first locking groove is provided on a peripheral edge of the shaft portion distal end side of the first locking groove. A two-piece clip provided with a stopper wall that protrudes higher in the outer diameter direction than the peripheral edge thereof.

  According to the invention, since the stopper wall projecting high in the outer diameter direction is provided on the peripheral edge of the first locking groove on the distal end side of the shaft portion, the elastic piece can be made difficult to come off from the first locking groove, The pin is not easily pulled out of the grommet.

  According to a sixth aspect of the present invention, in the invention according to any one of the second to fifth aspects, the elastic piece is engaged with the first locking groove at a peripheral edge of the opening on the tip side of the cylindrical portion. A two-piece clip configured to be arranged in the vicinity of the base end portion of the first locking piece when the first locking piece protrudes from the opening.

  According to the above invention, the elastic piece engages with the first locking groove, and the first locking piece protrudes from the opening, and the distal end side periphery of the opening of the cylindrical portion is the first locking piece. Since it is arranged in the vicinity of the base end, when the pin is pushed into the grommet, the first locking piece is immediately pressed by the peripheral edge of the opening and bent inward. It can be shortened, and the removal workability can be improved.

  A seventh aspect of the present invention provides the two-piece clip according to any one of the first to sixth aspects, wherein the grommet is integrally formed with a part to be fixed to the mounting hole.

  According to the above invention, since the grommet is integrally formed with the part to be fixed to the mounting hole, the number of parts of the clip can be reduced, and the clip can be simply inserted into the grommet. Can be temporarily fixed to the above parts.

  According to the two-piece clip of the present invention, the pin is pushed into the grommet and inserted into the mounting hole in a state in which the pin is prevented from being detached from the grommet by the first engaging means, thereby opening the grommet at the periphery of the mounting hole. The first locking piece protruding from the portion is engaged, and the clip can be attached to the attachment hole. By further pushing the pin in this state, the first locking piece is pressed and pulled to the periphery of the opening, and the first locking piece is detached from the mounting hole periphery, so that the clip can be removed from the mounting hole.

  In addition, since this clip is not configured to forcibly expand the outer periphery of the grommet by pushing a pin, there is a problem that the expanded portion changes over time to a state in which the diameter has expanded and cannot be pulled out. Absent. Further, the first locking piece of the pin is forcibly reduced in diameter by pushing the pin deeply and holding the pin in the predetermined pushing position with respect to the grommet by the second engaging means. When pulling out the clip, the clip can be easily and reliably removed without being caught on the periphery.

  Hereinafter, a first embodiment of the two-piece clip of the present invention will be described with reference to FIGS.

  For example, various components such as an engine main body, a battery, an air cleaner, and a washer tank are disposed in an engine room of a vehicle. Conventionally, these constituent members are often arranged in an exposed state in the engine room. However, when a vehicle collides with a pedestrian or the like and the pedestrian or the like is struck by the front hood, the above-mentioned components in the engine room may break through the front hood and damage the body of the pedestrian or the like. It was. Therefore, various constituent members in the engine room are covered with a cover member. Such a cover member needs to be easily removable when maintaining various components, exchanging parts, or cleaning.

  The two-piece clip of the present invention in this embodiment is preferably used when the cover member 5 is detachably attached to the vehicle body panel 1 arranged in the engine room of the vehicle as described above. (See FIG. 1). However, the present invention is not limited to this mode. For example, an attachment member such as an interior member (garnish, trim board, etc.) is fixed to a member to be attached such as a vehicle panel member, or a plurality of panel members are connected. The two-piece clip of the present invention can also be used when performing.

  As shown in FIG. 1, the two-piece clip 10 (hereinafter referred to as “clip 10”) of this embodiment includes a grommet 20 and a pin 30 inserted into the grommet 20. A circular mounting hole 3 (see FIG. 5) is formed in the vehicle body panel 1. In the cover member 5, a circular insertion hole 6 is formed at a position aligned with the mounting hole 3 of the vehicle body panel 1, and a circular recess 7 is formed in the front peripheral edge of the insertion hole 6. Yes. The mounting hole 3 and the insertion hole 6 are actually provided at a plurality of locations on the vehicle body panel 1 and the cover member 5, but only one location is shown here for convenience.

  The grommet 20 will be described with reference to FIGS. 1 to 3 and FIGS. 5 and 6. The grommet 20 has a substantially annular shape having a circular insertion hole 21 a at the center, and the insertion hole 6 of the cover member 5. It has a head portion 21 that engages with the front peripheral edge, and a cylindrical portion 22 that protrudes in a cylindrical shape from the rear peripheral edge of the insertion hole 21a of the head portion 21 and into which a shaft portion 32 of a pin 30 described later is inserted. Yes. The inner diameter of the cylindrical portion 22 is set smaller than the outer diameter of the flange portion 31 of the pin 30, and the flange portion 31 of the pin 30 inserted into the cylindrical portion 22 through the insertion hole 21 a is at the upper opening edge of the cylindrical portion 22. It is designed to engage. The peripheral edge of the insertion hole 21a on the surface side of the head portion 21 forms a circular flat surface 21b, and the tapered surface 21c is gradually thinned radially outward from the peripheral edge of the flat surface 21b. It is formed (see FIG. 3A). The flat surface 21b is a portion that comes into contact with the back surface of the flange portion 31 of the pin 30 to be described later when the pin 30 is pushed deeply into the grommet 20, and the tapered surface 21c is the head 21 in that state. This is a portion that secures a gap between the front surface and the rear surface of the flange portion 31 and makes it easy to separate the grommet 20 and the pin 30 (see FIG. 6).

  A pair of long hole-like openings 23 and 23 are formed at opposite positions on the peripheral wall of the cylindrical portion 22 so as to allow a first locking piece 40 of a pin 30 to be described later to appear and disappear. The long hole-like opening 23 is formed with a length from the base end edge of the cylindrical portion 22 to the middle in the axial direction (see FIG. 3A). Further, the peripheral edge of the opening portion 23 on the tip end side of the cylindrical portion 22 is formed by engaging an engaging protrusion 26 at the tip of an elastic piece 25 described later with a first locking groove 35 of a pin 30 described later. When a first locking piece 40 (described later) protrudes from 23, the first locking piece 40 is formed so as to be disposed in the vicinity of the proximal end portion of the first locking piece 40.

  As shown in FIG. 2, a portion of the cylindrical portion 22 on the distal end side with respect to the opening portion 23 has a shape that is gradually reduced in diameter and narrowed toward the distal end. Referring also to FIG. 3 (B), a plurality of slits 24 are formed in the reduced diameter portion at equal intervals along the circumferential direction (four in this embodiment). A plurality of elastic pieces 25 that can be bent through the plurality of slits 24 are provided (four in this embodiment). Engagement protrusions 26 project from the inner ends of the elastic pieces 25 at a predetermined height so as to engage with first and second locking grooves 35 and 36 of the pin 30 described later. It has become. Further, the engaging protrusion 26 has a protruding shape with an arc-shaped cross section, and is firmly engaged with the first and second locking grooves 35 and 36 that are recessed in an arc shape (FIG. 5). reference).

  Next, the pin 30 inserted into the grommet 20 will be described with reference to FIGS. 1 and 2 and FIGS. 4 to 6. The pin 30 has a disk shape and contacts the head 21 of the grommet 20. It has the flange part 31 which touches, and the axial part 32 which protrudes from the single side | surface of this flange part 31. The shaft portion 32 has a long plate-like shaft main body 33 that protrudes perpendicularly from the center of the back surface of the flange portion 31, and a diameter-expanded portion 34 that is connected to the distal end portion of the shaft main body 33. As shown in FIG. 4 (A), a pair of protrusions 33a and 33a project from both side surfaces in the thickness direction of the shaft main body 33, and the pair of protrusions 33a and 33a are When the pin 30 is assembled to the grommet 20, the pin 30 is fitted to the grommet 20 so as to fit to the inner periphery of the cylindrical portion 22 of the grommet 20 and prevent the pin 30 from tilting or rattling. (See FIGS. 5 and 6).

  Further, the enlarged diameter portion 34 at the distal end of the shaft portion 32 has a tapered end portion 34 a so that the shaft portion 32 of the pin 30 can be easily inserted into the cylindrical portion 22 of the grommet 20. Further, the base end portion 34b of the diameter-expanded portion 34 has a shape in which the outer peripheral surface gradually increases in diameter toward the base end portion side of the shaft portion 32, and as shown in FIG. 6, the outer periphery of the base end portion 34b. Is substantially adapted to the inner periphery of the elastic piece 25.

  A first locking groove 35 having a predetermined depth is formed on the outer periphery on the distal end side of the shaft portion 32 between the distal end portion 34a and the proximal end portion 34b of the enlarged diameter portion 34, and the first locking groove 35 is formed. A second locking groove 36 having a predetermined depth is formed on the outer periphery closer to the base end. In the case of this embodiment, the first locking groove 35 and the second locking groove 36 are provided at positions adjacent to each other up and down across the partition wall 37, and each locking groove 35, 36 is elastic. Corresponding to the engagement protrusion 26 having a circular arc shape at the tip of the piece 25, the inner peripheral surface thereof has a shape recessed in an arc shape.

  As shown in FIG. 5, the first locking groove 35 is formed with a depth D <b> 1 from the outer peripheral edge R having the largest diameter of the enlarged diameter portion 34, and this depth D <b> 1 is the outer peripheral edge of the second locking groove 36. It is formed deeper than the depth D2 from R (D1> D2). Further, the width W1 of the first locking groove 35 is formed wider than the width W2 of the second locking groove 36 (W1> W2). Further, as shown in FIG. 5, the peripheral edge of the first locking groove 35 on the distal end side of the shaft portion 32 is more than the partition wall 37 provided on the peripheral edge of the first locking groove 35 on the proximal end side of the shaft portion 32. A stopper wall 38 projecting high in the outer diameter direction is provided.

  Further, as shown in FIG. 5, when the engagement protrusion 26 of the elastic piece 25 of the grommet 20 is engaged with the first locking groove 35 of the pin 30 and the pin 30 is assembled to the grommet 20, the grommet The first locking groove 35 is disposed at a predetermined position of the distal end portion of the shaft portion 32 so that a gap of a predetermined size is formed between the head portion 21 of the 20 and the flange portion 31 of the pin 30. ing. Accordingly, the pin 30 can be further pushed into the grommet 20 in a state where the engagement protrusion 26 is engaged with the first locking groove 35 shown in FIG. 5 and the pin 30 is assembled to the grommet 20. ing. Further, in the assembled state of the grommet 20 and the pin 30 shown in FIG. 5, the upper end surface of the base end portion 34 b of the enlarged diameter portion 34 provided on the pin 30 is the cylindrical portion 22 of the opening 23 formed in the grommet 20. It is formed so as to be substantially the same position with respect to the peripheral edge on the distal end side, and thereby the peripheral edge on the distal end side of the cylindrical portion 22 of the opening 23 is arranged in the vicinity of the proximal end portion of the first locking piece 40 described later It has come to be.

  From the upper end surface of the base end portion 34b of the diameter-expanded portion 34, the shaft main body 33 is located diagonally outward toward the base end side of the shaft portion 32 so as to be located on both side surfaces in the plate thickness direction. A pair of first locking pieces 40, 40 are formed extending in a hook shape and capable of being bent. In addition, first engagement step portions 41 and 41 are provided at the distal end portions of the first locking pieces 40 and 40, respectively, and a shaft extends from the inner peripheral side of the first engagement step portions 41 and 41. Thin piece portions 43, 43 that are substantially parallel to the main body 33 are projected. Each of the first engaging step portions 41 and 41 is a portion that engages with the rear peripheral edge of the mounting hole 3, and at this time, the thin piece portions 43 and 43 are inserted into the inner periphery of the mounting hole 3. .

  When the pin 30 is pushed into the grommet 20 to a predetermined depth and the engagement protrusion 26 of the elastic piece 25 is engaged with the first engagement groove 35, the pair of first engagement pieces 40, 40 are It protrudes from the opening parts 23 and 23, and the pin 30 is held by the grommet 20 in such a state (see FIG. 5). On the other hand, when the pin 30 is further pushed deeply from the state in which the pin 30 is retained by the grommet 20 shown in FIG. 5 and the engagement protrusion 26 of the elastic piece 25 is engaged with the second locking groove 36, A pair of 1st locking pieces 40 and 40 are pressed by the periphery of the opening part 23, and are pulled in from the opening part 23, and the pin 30 is hold | maintained at the grommet 20 in the pushing position (refer FIG. 6). ). As described above, in the first embodiment, the first locking groove 35 and the elastic piece 25 form the first engaging means in the present invention, and the second locking groove 36 and the elastic piece 25 are It constitutes the second engaging means in the present invention.

  Next, a method of using the clip 10 having the above configuration will be described.

  First, as shown in FIG. 1, the shaft portion 32 of the pin 30 and the pair of first locking pieces 40, 40 are aligned with the insertion hole 21 a and the pair of openings 23, 23 of the grommet 20. The pin 30 is pushed in. Then, the shaft portion 32 is inserted into the cylindrical portion 22 through the insertion hole 21a, the pair of first locking pieces 40, 40 are pressed by the insertion hole 21a and bent inward, and When the stop pieces 40, 40 reach the openings 23, 23, the pair of first locking pieces 40, 40 protrude from the openings 23, 23 by elastic recovery (see FIG. 6). At the same time, the tapered end portion 34a of the shaft portion 32 enters the inside of the plurality of elastic pieces 25, presses the respective engaging projections 26, and flexes the plurality of elastic pieces 25 outward. When the engagement protrusion 26 reaches the first locking groove 35, the plurality of elastic pieces 25 are elastically restored, and the engagement protrusions 26 are engaged with the first locking groove 35. As a result, as shown in FIG. As described above, the pin 30 can be held and assembled to the grommet 20 with the pair of first locking pieces 40, 40 protruding from the openings 23, 23.

  At this time, the peripheral edge on the distal end side of the shaft portion 32 of the first locking groove 35 protrudes higher in the outer diameter direction than the partition wall 37 provided on the peripheral edge on the proximal end side of the shaft portion 32 of the first locking groove 35. Since the stopper wall 38 is provided (see FIG. 5), even if an external force is applied to pull the pin 30 away from the grommet 20, the stopper wall 38 is caught by the engaging protrusion 26 of the elastic piece 25, The elastic piece 25 can be made difficult to come off from the first locking groove 35, and as a result, the pin 30 once assembled to the grommet 20 can be prevented from being easily pulled out from the grommet 20. For example, it is effective in the case of transporting the grommet 20 with the pin 30 assembled.

  Next, with the mounting hole 3 and the insertion hole 6 aligned, the cover member 5 is disposed on the vehicle body panel 1, and the clip 10 in the above state is inserted from the cover member 5 side (FIG. 1). Then, the pair of first locking pieces 40, 40 protruding from the openings 23, 23 through the insertion hole 6 are pressed against the inner periphery of the mounting hole 3 and bent inward, and the first engagement step portion 41. , 41 reaches the back side of the mounting hole 3, the first locking pieces 40, 40 are elastically restored, and the first engaging step portions 41, 41 engage with the back side peripheral edge of the mounting hole 3, and the grommet The head 21 of the 20 is engaged with the front side periphery of the insertion hole 6 so that the vehicle body panel 1 and the cover member 5 are sandwiched between them, and the cover member 5 can be attached to the vehicle body panel 1.

  At this time, as shown in FIG. 5, by forming the depth D1 of the first locking groove 35 deeper than the depth D2 of the second locking groove 36, the engagement protrusion 26 of the elastic piece 25 is Since the first locking groove 35 can be engaged at a deeper position than when the second locking groove 36 is engaged (see FIG. 6), the elastic piece 25 can be engaged from the first locking groove 35. The protrusion 26 can be made difficult to come off. Furthermore, in this embodiment, as shown in FIG. 5, the width W1 of the first locking groove 35 is formed wider than the width W2 of the second locking groove 36, so that the elastic piece 25 is engaged. Since the protrusion 26 can be engaged with the first locking groove 35 with a larger contact area than when it is engaged with the second locking groove 36 (see FIG. 6), the first locking groove 35 is elastic. The engagement protrusion 26 of the piece 25 can be firmly engaged. As a result, when the clip 10 is inserted into the insertion hole 6 and the mounting hole 3 by pressing the flange portion 31 of the pin 30, the elastic piece 25 of the grommet 20 is detached from the first locking groove 35 and fitted into the second locking groove 36. The engagement protrusion 26 of the elastic piece 25 is firmly engaged with the first locking groove 35, and the pair of first locking pieces 40, 40 are opened from the openings 23, 23. It can be stably held in the protruding state.

  Then, when the cover member 5 is attached to the vehicle body panel 1 by the clip 10 as shown in FIG. 5, a predetermined gap is formed between the head portion 21 of the grommet 20 and the flange portion 31 of the pin 30. Therefore, the pin can be pushed into the grommet 20. Therefore, when it is desired to remove the cover member 5 from the vehicle body panel 1 for reasons such as performing maintenance on the engine room, the elastic piece 25 is deflected outward by further pressing the pin 30 from the above state, and the engagement protrusion 26 gets over the partition wall 37 and engages with the second locking groove 36. At the same time, the pair of first locking pieces 40 are pressed and bent inwardly by the peripheral edge of each opening 23 on the distal end side of the cylindrical portion 22 and pulled in from the openings 23 and 23, as shown in FIG. The first engagement step portion 41 is released from the rear side periphery of the mounting hole 3 and the engagement state is released. Therefore, after that, by lifting the cover member 5 from the vehicle body panel 1, the clip 10 is pulled out from the mounting hole 3 of the vehicle body panel 1, and the cover member 5 can be removed from the vehicle body panel 1.

  At this time, the engagement protrusion 26 of the elastic piece 25 engages with the first locking groove 35 and the first locking piece 40 protrudes from the opening 23, and the distal end side periphery of the opening 23 is the first. Since the pin 30 is disposed in the vicinity of the base end portion of the locking piece 40, when the pin 30 is pushed into the grommet 20, the first locking piece 40 is immediately pressed inward by the peripheral edge on the distal end side of the opening 23. Since it bends, the pushing stroke of the pin 30 can be shortened, and the removal workability is improved.

  As described above, the depth D1 of the first locking groove 35 is deeper than the depth D2 of the second locking groove 36 (D1> D2). In the state in which the elastic piece 25 is engaged, the elastic piece 25 is expanded more than when it is engaged with the first locking groove 35 (see FIGS. 5 and 6). It is easy to return to the first locking groove 35 side by force. Therefore, after the first locking piece 40 is pulled in from the opening 23 and the clip 10 is removed from the mounting hole 3 as described above, the pin 30 is pushed into the grommet 20 a little to easily form the elastic piece. 25 can be returned to the state engaged with the first locking groove 35 and the first locking piece 40 can be returned from the opening 23 so that the clip 10 can be easily reused.

  As described above, when the clip 10 is fixed to the mounting hole 3, the clip 30 is clipped into the mounting hole 3 by simply inserting the pin 30 into the grommet 20 and then pushing it into the mounting hole 3. 10 can be fixed. On the other hand, when the clip 10 is removed from the mounting hole 3, the clip 30 is attached to the mounting hole by a relatively simple operation of pushing the pin 30 into the grommet 20 and then pulling it out. As a result, it is possible to improve the workability of attaching / detaching the cover member 5 to / from the vehicle body panel 1 as described above.

  Further, since the clip 10 is not configured to forcibly expand the outer periphery of the grommet by pushing a pin as in the prior art, the expanded portion may change over time to a state in which the diameter has been expanded. The pair of first locking pieces 40, 40 provided on the pin 30 is configured to be forcibly reduced in diameter by the peripheral edge portion of the opening 23 of the grommet 20. Can be removed.

  Further, since the diameter of the grommet 20 is not increased, when the clip 10 is pulled out from the mounting hole 3, the grommet 20 is not caught on the peripheral edge, and the workability of removing the clip 10 is ensured. Moreover, since the part which expands in the grommet 20 is not provided, a comparatively hard synthetic resin material etc. can be employ | adopted, for example, and the room for material selection spreads.

  FIG. 7 shows a second embodiment of a two-piece clip according to the invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The grommet 20 in the above embodiment is provided separately from the vehicle body panel 1 and the cover member 5, whereas the two-piece clip 10a (hereinafter referred to as “clip 10a”) in this embodiment is a vehicle body panel. The grommet 20a is integrally formed with the cover member 5 that is detachably attached to the first member. Specifically, the grommet 20a has a cylindrical portion 22 projecting from the rear peripheral edge of the insertion hole 6 formed in the cover member 5, and the head portion 21 is not provided.

  Since the clip 10a does not have a structure in which the outer periphery of the grommet is expanded, the grommet can be integrally formed with a mounting part such as the cover member 5 or the like. And according to this aspect, since the grommet 20a is integrally formed in the cover member 5, and the grommet 20a does not separate from the cover member 5, when attaching the pin 30 to the grommet 20a or from the grommet 20a to the pin 30 The workability at the time of removing can be improved.

  8-10 show a third embodiment of a two-piece clip according to the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the two-piece clip 10b (hereinafter referred to as “clip 10b”) of the third embodiment, the pin 30 is further pushed from the state in which the pin 30 is held in the grommet 20 so that the first locking piece 40 is moved. The structure of the second engaging means that pulls into the opening 23 and holds the pin 30 in the grommet 20 at the pushed-in position is different from the first and second embodiments.

  Note that the first engagement means for retaining the pin 30 in the grommet 20 in a state where the first locking piece 40 protrudes from the opening 23 has the same structure as the first and second embodiments. Yes. That is, also in the third embodiment, the first locking groove 35 and the elastic piece 25 constitute the first engaging means in the present invention.

  Hereinafter, the different structures will be described. As shown in FIGS. 8A and 8B, the base end portion 34b of the enlarged-diameter portion 34 connected to the distal end portion of the shaft body 33 suspended from the flange portion 31 of the pin 30 has the first, Compared to that of the second embodiment, it has a shape extending longer toward the tip end in the axial direction. Further, unlike the above-described embodiment, only the first locking groove 35 is formed between the distal end portion 34a and the base end portion 34b of the enlarged diameter portion 34, and the second locking groove 36 is not provided. It has become. Further, the protrusions 33a and 33a projecting from both side surfaces on the proximal end side of the shaft main body 33 are aligned with the first locking pieces 40 and 40 and are inclined obliquely outward toward the flange portion 31. A pair of second locking pieces 55, 55 having a foot shape is extended so as to bend. A second engagement step 56 is provided at the tip of each second locking piece 55.

  Then, when the pin 30 is further pushed in from the state in which the pin 30 is retained by the grommet 20 and the first locking piece 40 is pulled in from the opening 23, the base end side of the opening 23 of the grommet 20 Is engaged with the second engagement step portion 56 of the second locking piece 55 (see FIG. 10). That is, in this 3rd Embodiment, the 2nd latching piece 55 and the peripheral edge of the base end side of the opening part 23 are the 2nd engaging means in this invention.

  In the clip 10b having the above structure, when the pin 30 is pushed into the grommet 20 to a predetermined depth, the engaging protrusion 26 of the elastic piece 25 is inserted into the first locking groove 35 as in the first and second embodiments. The pin 30 is retained and retained in a state in which the pair of first locking pieces 40, 40 are engaged and project from the openings 23, 23. At this time, the second locking pieces 55, 55 are pressed to the inner periphery of the insertion hole 21a and bent inward. In this state, by pushing the clip 10 b into the mounting hole 3, the first engaging step portions 41 of the pair of first locking pieces 40, 40 protruding from the opening portion 23 are engaged with the back side peripheral edge of the mounting 3. In addition, as shown in FIG. 9, the cover member 5 can be attached to the vehicle body panel 1 via the clip 10b.

  Thereafter, when the clip 10b is removed from the mounting hole 3, the elastic piece 25 bends outward from the state shown in FIG. 9 by pushing the pin 30 further deeply as shown in FIG. The engaging protrusion 26 is removed from the stop groove 35, and the pair of first locking pieces 40, 40 are pressed by the peripheral edge of the distal end side of the opening 23, bent inward, and pulled from the opening 23. At the same time, the second locking pieces 55 and 55 are elastically restored, the second engagement step portion 56 is engaged with the peripheral edge on the proximal end side of the opening 23, and the pin 30 is held by the grommet 20 at the pushing position. Since the retracted state of the first locking piece 40 is maintained, the pin 30 can be pulled out from the mounting hole 3 and removed.

  FIGS. 11-18 show a fourth embodiment of a two-piece clip according to the invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The two-piece clip 10c (hereinafter referred to as “clip 10c”) of the third embodiment is interposed between the grommet 20 and the pin 30 in addition to the grommet 20 and the pin 30, and the pin 30 is attached to the grommet 20. On the other hand, biasing means (coil spring 70 in this embodiment) that biases in the direction opposite to the pushing direction is provided.

  Referring to FIGS. 11 and 13 and FIGS. 15 to 18, the grommet 20 will be described with a focus on the portions different from the above-described embodiment. An accommodation recess 21 d into which the flange portion 31 of the pin 30 enters is formed on the surface of the head 21. A pair of cutout grooves 21e and 21e are formed through the head 21 at the opposing peripheral edge of the insertion hole 21a formed at the center of the bottom of the receiving recess 21d.

  The cylindrical portion 22 provided on the back surface side of the head portion 21 includes a cylindrical peripheral wall 22a extending from the rear peripheral edge of the insertion hole 21a of the head portion 21, and a bottom portion 22b connected to the front end opening of the peripheral wall 22a. And has a substantially bottomed cylindrical shape. As shown in FIG. 15, one end of a coil spring 70 is supported on the inner end surface of the bottom 22b.

  On the other hand, the pin 30 will be described with reference to FIGS. 11, 12, 14 and FIGS. 15 to 18. The shaft portion 32 of the pin 30 protrudes from the back side of the flange portion 31, and both side portions 32 b and 32 b are formed. A base portion 32a that forms a flat surface, an intermediate portion 32c that is suspended from the tip of the base portion 32a and has opposite flat portions 32d and 32d, and a disc-shaped tip that is connected to the intermediate portion 32c. It is comprised from the part 32e (refer FIG. 4 (A)-(C)). The other end of the coil spring 70 is supported on the distal end surface of the disc-shaped distal end portion 32e. A pair of first locking pieces 40, 40 extend from the base end face of the distal end portion 32e on the opposite side portions 32d side of the intermediate portion 32c. A pair of second locking pieces 55, 55 are extended from the tip end side of 32b.

  A coil spring 70 as an urging means is interposed between the grommet 20 and the pin 30 having the above structure. This will be described together with the assembly procedure of the pin 30 to the grommet 20. First, the coil spring 70 is inserted into the cylindrical portion 22 of the grommet 20, and one end is supported on the inner end face of the bottom portion 22 b. In this state, the first locking pieces 40, 40 are aligned with the notched grooves 21e, 21e, the shaft portion 32 is inserted into the cylindrical portion 22 through the insertion hole 21a, and the distal end surface of the distal end portion 32e of the shaft portion 32 is inserted. The other end of the coil spring 70 is supported. Then, the pin 30 is pushed into the grommet 20 against the urging force of the coil spring 70.

  Then, the first locking pieces 40, 40 are pressed to the inner periphery of the notch grooves 21e, 21e and bent inward, and the first engagement step portions 41, 41 pass through the notch grooves 21e, 21e. When reaching the opening 23, the first locking pieces 40, 40 are elastically restored, and the first engagement step portions 41, 41 are engaged with the peripheral edge of the proximal end side of the opening 23. As shown in FIG. 15, the pin 30 is retained by the grommet 20 in a state where the pin 30 protrudes from the opening 23. That is, in this 4th Embodiment, the peripheral edge of the base end side of the said 1st latching piece 40 and the opening part 23 has comprised the 1st engagement means.

  At this time, one end of the coil spring 70 is supported on the inner end surface of the bottom portion 22 b of the cylindrical portion 22, and the other end is supported on the distal end surface of the distal end portion 32 e of the shaft portion 32, so that the grommet 20 and the pin 30 The pin 30 is assembled to the grommet 20 with the pin 30 being urged in a direction opposite to the pushing direction with respect to the grommet 20 (see the arrow in FIG. 15). ing.

  And also in the clip 10c of this embodiment, like the clip of the said embodiment, as above-mentioned, a pair of 1st locking pieces 40 and 40 are made to protrude from the opening part 23, and the pin 30 is made into the grommet 20 By inserting into the attachment hole 3 in the state of retaining the retaining hole, the first engagement step portion 41 of the first locking piece 40 engages with the peripheral edge on the back side of the attachment hole 3 and the head 21 of the grommet 20. Engages with the front peripheral edge of the insertion hole 6, and the cover member 5 can be attached to the vehicle body panel 1 as shown in FIG. 16.

  At this time, the pin 30 is urged by the coil spring 70 in the direction opposite to the direction in which the pin 30 is pushed into the grommet 20, so that the first engagement is directed toward the back side of the mounting hole 3 as shown by the arrow in FIG. The stop piece 40 is pressed. As a result, even if the plate thickness of the vehicle body panel 1 which is a member to be attached changes due to a dimensional error or the like, the clip 10c can be stably fixed without looseness in the attachment hole 3 in a flexible manner. it can.

  Further, a clip may be fixed to the mounting hole 3 formed in a member such as a flexible trim board. In the case of such a flexible member, it becomes thinner than a predetermined plate thickness due to a sag or the like. May end up. Even in such a case, the biasing force of the coil spring 70 causes the first engagement step portion 41 of the first locking piece 40 to be strongly engaged with the peripheral edge on the back side of the attachment hole 3, and the clip 10 c is attached to the attachment hole 3. It can be fixed without rattling.

  Moreover, as shown in FIG. 17, even when the plate | board thickness of the vehicle body panel 1 is thick, the 1st engagement step part 41 of the 1st latching piece 40 of the pin 30 pushed up by the urging | biasing force of the coil spring 70 is the following. The clip 10c can be firmly fixed to the mounting hole 3 with no backlash. Further, in this case, the coil spring 70 is pressed and contracted due to the change in the plate thickness, and the entire pin 30 is further pushed in, so that the position of the first engagement step portion 41 is moved. In addition, an excessive load does not act on the first locking piece 40 itself and can be stably fixed.

  On the other hand, when it is desired to remove the clip 10c from the mounting hole 3, the pin 30 is further pushed into the grommet 20 against the urging force of the coil spring 70 from the state shown in FIG. As described above, the second locking pieces 55 and 55 are bent inward by the inner peripheral edges of the notch grooves 21e and 21e, and the first locking pieces 40 and 40 are pressed to the front end side peripheral edge of the opening 23 to be bent inward. Then, the first engaging step portion 41 is detached from the rear peripheral edge of the mounting hole 3 by being drawn from the openings 23 and 23. Further, when the pin 30 is pushed and the second engagement step portion 56 of the second locking piece 55 passes through the notch groove 21e and reaches the opening 23, the second locking pieces 55 and 55 are elastic. The second engagement step portion 56 is engaged with the peripheral edge on the proximal end side of the opening portion 23 and the first locking pieces 40 and 40 are held in the state of being pulled into the opening portion 23, and are attached to the mounting holes. The clip 10c can be pulled out from 3 and removed. As described above, in the fourth embodiment, as in the third embodiment, the second locking piece 55 and the peripheral edge on the proximal end side of the opening 23 form the second engaging means. .

  19 and 20 show a fifth embodiment of a two-piece clip according to the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The two-piece clip 10d (hereinafter referred to as “clip 10d”) of the fifth embodiment has an urging means interposed between the grommet 20 and the pin 30 as in the fourth embodiment. Compared with the fourth embodiment, the first engagement means for retaining the pin 30 in the grommet 20 and the second engagement means for retaining the first locking piece 40 in the state of being pulled from the opening 23. Is different.

  That is, as shown in FIGS. 19 and 20, an insertion hole 22 d is formed in the bottom 22 b of the grommet 20. On the other hand, the shaft portion 32 of the pin 30 protrudes from the tip end surface of the tip end portion 32e with a columnar guide shaft 57 and a diameter smaller than that of the guide shaft 57 from the tip end of the guide shaft 57. And a protruding shaft 59. On the outer periphery of the tip of the protruding shaft 59, half-bendable bending claws 63, 63 are projected through a slit 61. In addition, a pair of engaging protrusions 65, 65 are provided on the outer periphery of the protruding shaft 59 in the axial direction and on the outer periphery on the base side of the engaging claw 63.

  When the pin 30 is pushed into the grommet 20 with the coil spring 70 on the outer circumference of the guide shaft 57, the outer circumferences of the half-shaped engagement claws 63 and 63 are pushed to the inner circumference of the insertion hole 22d. When the engaging claw 63 comes out to the protruding side (outer surface side) of the insertion hole 22d, the engaging claws 63, 63 engage with the protruding peripheral edge of the insertion hole 22d and With the one locking piece 40 protruding, the pin 30 is retained by the grommet 20 to prevent it from coming off. That is, in the fifth embodiment, the engaging claw 63 provided at the tip of the shaft portion 32 of the pin 30 and the insertion hole 22d provided in the bottom portion 22b of the cylindrical portion 22 constitute the first engaging means.

  When the assembled clip 10d is inserted into the attachment hole 3, the first engagement step portion 51 is engaged with the rear peripheral edge of the attachment hole 3, and the clip 10 is fixed to the attachment hole 3. (See FIG. 19). In the fifth embodiment, since the insertion hole 22d and the protruding shaft 59 of the shaft portion 32 of the pin 30 are movably inserted, it is possible to secure the pushing amount of the pin 30 with respect to the grommet 20. Further, since the guide shaft 57 of the shaft portion 32 of the pin 30 is inserted into the coil spring 70, the inclination and displacement of the coil spring 70 can be suppressed.

  Further, when the clip 10d is removed from the mounting hole 3, the pin 10 is further pushed in as shown in FIG. 20 from the state where the clip 10 shown in FIG. The mating protrusions 65, 65 engage with the rear side periphery of the insertion hole 22 d, and the clip 10 can be pulled out from the mounting hole 3 while holding the first locking piece 40 in a state of being pulled from the opening 23. That is, in the fifth embodiment, the engagement protrusion 65 provided in the axial direction of the protruding shaft 59 of the pin 30 and the insertion hole 22d provided in the bottom portion 22b of the cylindrical portion 22 constitute the second engagement means. ing.

  21 to 23 show a sixth embodiment of a two-piece clip according to the invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The two-piece clip 10e of the sixth embodiment (hereinafter referred to as “clip 10e”) has an urging means interposed between the grommet 20 and the pin 30 as in the fourth and fifth embodiments. Compared with the fourth embodiment, the biasing force applying structure by the biasing means is different.

  That is, the clip 10e of this embodiment has a configuration in which the coil spring 70 is not used as the urging means, but the resin spring 70a formed integrally with the pin 30 is used. As shown in FIGS. 21A to 21C, the resin spring 70a has a pair of support pieces 71 protruding from the tip end portion 32e of the shaft portion 32 of the pin 30 so as to be gradually separated obliquely outward. 71 and spring pieces 73, 73 extending from the tips of the support pieces 71, 71 so as to gradually approach each other in an obliquely inward direction and having ends connected to each other.

  On the other hand, as shown in FIG. 22, the grommet 20 has a long hole-like insertion hole 22e formed in the bottom 22b of the cylindrical portion 22, and the periphery of the insertion hole 22e is a spring contact inclined obliquely upward. A contact portion 27 is formed.

  The first engagement means for retaining the pin 30 in the grommet 20 and the second engagement means for retaining the first locking piece 40 in the state pulled in from the opening 23 are the first engagement means. This is the same as the fourth embodiment.

  Then, when the pin 30 is inserted into the grommet 20, the spring pieces 73, 73 of the resin spring 70a are inserted into the insertion hole 22e, and the first locking piece 40 of the first locking piece 40 is disposed on the base end side periphery of the opening 23. The 1 engaging step 41 is engaged and retained. At this time, since the spring contact portion 27 and the spring pieces 73, 73 provided on the grommet 20 are in contact with each other and bent, the pin 30 is biased in the direction opposite to the pushing direction with respect to the grommet 20 by the elastic restoring force. It is like that.

  Then, as shown in FIG. 22, by inserting the clip 10 e in which the pin 30 is assembled to the grommet 20 into the attachment hole 3, the first engagement step portion 51 is engaged with the rear peripheral edge of the attachment hole 3. The clip 10 is fixed to the mounting hole 3. At this time, when the first locking piece 40 is engaged with the mounting hole 3, the pin 30 is further pushed in, and the spring pieces 73 and 73 are in strong contact with the spring contact portion 27 of the grommet 20. The bending and its elastic restoring force are larger than those in the attached state, and the first locking piece 40 is strongly pressed against the back side of the attachment hole 3, and the clip 10 a can be fixed to the attachment hole 3 without rattling.

  Further, when the clip 10 is to be removed from the mounting hole 3, the pin 30 is further pushed from the above state against the urging force of the resin spring 70a, so that the second locking piece 55 is shown in FIG. The second engagement step portion 56 engages with the peripheral edge on the proximal end side of the opening portion 23, and the first locking piece 40 is held in a state of being pulled in from the opening portion 23, and the clip 10 e is pulled out from the mounting hole 3. be able to.

It is a disassembled perspective view which shows 1st Embodiment of the 2 piece clip of this invention. It is a perspective view at the time of seeing the 2 piece clip from diagonally downward. The grommet which comprises the 2 piece clip is shown, (A) is a front view, (B) is a bottom view. The pin which comprises the 2 piece clip is shown, (A) is a front view, (B) is a side view, (C) is a bottom view. It is explanatory drawing which shows the state which fixed the 2 piece clip to the attachment hole. It is explanatory drawing which shows the state which removes the 2 piece clip from an attachment hole. It is explanatory drawing which shows 2nd Embodiment of the 2 piece clip of this invention. The 3rd Embodiment of the 2 piece clip of this invention is shown, (A) is the front view of the pin which comprises the 2 piece clip, (B) is the side view of the pin, (C) is the bottom face of the pin FIG. It is explanatory drawing which shows the state which fixed the 2 piece clip to the attachment hole. It is explanatory drawing which shows the state which removes the 2 piece clip from an attachment hole. It is a disassembled perspective view which shows 4th Embodiment of the 2 piece clip of this invention. It is a perspective view of the pin which comprises the 2 piece clip. It is a perspective view of the grommet which comprises the 2 piece clip. The pin which comprises the 2 piece clip is shown, (A) is a front view, (B) is a side view, (C) is a bottom view. It is explanatory drawing which shows the state which assembled | attached the pin to the grommet. It is explanatory drawing which shows the state which fixed the 2 piece clip of this invention to the attachment hole. It is explanatory drawing which shows the state which fixed the 2 piece clip to the attachment hole of the to-be-attached member with thick plate | board thickness. It is explanatory drawing which shows the state which removes the 2 piece clip from the attachment hole. The 5th Embodiment of the 2 piece clip of this invention is shown, It is explanatory drawing which shows the state which fixed the 2 piece clip to the attachment hole. It is explanatory drawing which shows the state which removes the 2 piece clip from the attachment hole. The 6th Embodiment of the 2 piece clip of this invention is shown, (A) is a front view of the pin which comprises the 2 piece clip, (B) is a side view of the pin, (C) is a bottom face of the pin FIG. It is explanatory drawing which shows the state which fixed the 2 piece clip to the attachment hole. It is explanatory drawing which shows the state which removes the 2 piece clip from the attachment hole.

Explanation of symbols

3 Mounting hole 10, 10a, 10b, 10c, 10d, 10e Two piece clip 20, 20a Grommet 22, 22a Tube portion 23 Opening portion 25 Elastic piece 30 Pin 31 Flange portion 32 Shaft portion 35 First locking groove 36 Second engagement Stop groove 40 First locking piece 55 Second locking piece

Claims (7)

A two-piece clip comprising a grommet and a pin inserted into the grommet, and fixed to the mounting hole;
The pin has a flange portion, a shaft portion protruding from one surface of the flange portion, and a first locking piece that is provided on the outer periphery of the shaft portion so as to be able to bend and engage with the periphery of the mounting hole,
The grommet has a cylindrical portion formed with an inner diameter smaller than the outer diameter of the flange portion, with the shaft portion inserted therein, and an opening formed on a peripheral wall of the cylindrical portion to allow the first locking piece to protrude and retract. Have
The pin is pushed into the grommet to a predetermined depth, the first locking piece protrudes from the opening, and a predetermined gap is provided between the grommet and the flange portion with respect to the grommet. A first engagement means for retaining the pin to prevent it from coming off,
From the state in which the pin is held against the grommet by the first engagement means, the first locking piece is pressed to the periphery of the opening by further pushing the pin into the grommet. A two-piece clip configured to be retracted into the part and provided with second engaging means for holding the pin in the grommet in its pushed-in position. The first engagement means comprises a first locking groove formed on the outer periphery of the tip end portion of the shaft portion of the pin, and an elastic piece formed so as to be deflectable at the tip end portion of the cylindrical portion of the grommet,
The said 2nd engaging means consists of the 2nd latching groove formed in the outer periphery near the base end part rather than the said 1st latching groove of the axial part of the said pin, and the said elastic piece. 2 piece clip.   The two-piece clip according to claim 2, wherein the first locking groove is formed to be deeper with respect to the outer peripheral surface of the shaft portion than the second locking groove. The first engagement means comprises a first locking groove formed on the outer periphery of the tip end portion of the shaft portion of the pin, and an elastic piece formed to be able to bend at the tip end portion of the cylindrical portion of the grommet,
The second engaging means includes a second locking piece formed on the proximal end side of the shaft portion of the pin so as to be bent, and the opening of the grommet. The two-piece clip according to claim 1, comprising a peripheral edge on a proximal end side of the cylindrical portion.   A stopper wall that protrudes higher in the outer diameter direction than the peripheral edge of the first locking groove on the shaft base end side is provided on the peripheral edge of the first locking groove on the distal end side of the shaft part. Item 2. The two-piece clip according to any one of items 2 to 4.   The peripheral edge of the opening on the tip side of the cylindrical portion is the same as the first when the elastic piece engages with the first locking groove and the first locking piece protrudes from the opening. The two-piece clip according to any one of claims 2 to 5, wherein the two-piece clip is configured to be disposed in the vicinity of a base end portion of the locking piece.   The two-piece clip according to any one of claims 1 to 6, wherein the grommet is integrally formed with a part to be fixed to the mounting hole.

Images