JP2009174636A - Clip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reusable clip for generating high removing force. <P>SOLUTION: This clip includes a base part 4, a leg part 5, a male screw part 14 arranged on an outer peripheral surface of the leg part, a grommet 2 having a pin hole 6 penetrating through the base part and the leg part, and a pin 3 having a head part 31 on one end and having a shaft part 32 fitted to and inserted into the pin hole. The grommet has at least one or more of inclined faces 15 turning to the head part side and inclined so as to approach or separate to a head part for proceeding to one in the circumferential direction of the pin hole. The pin has a projection part 37 sliding on the inclined face, and an inclination of the inclined face is set so that the grommet rotates to the pin in the direction for threadedly advancing the male screw part when the pin is pressed in the direction for being inserted into the grommet. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a clip for fastening a plurality of members, and more particularly, to a vehicle body by passing through a hole provided in a vehicle exterior member and screwing into a female screw hole provided in a vehicle body of the vehicle. The present invention relates to a clip for fastening a member.

  Conventionally, when an exterior part such as a heat shield plate is detachably fastened to the body of an automobile, bolts and nuts are sometimes used. For example, a hole is formed in the vehicle body frame to provide a weld nut, a hole is formed in the exterior member at a position that coincides with the hole of the vehicle body, the holes are communicated by bolts, and the bolts and weld nuts are screwed. The vehicle body and the exterior member were fastened together.

  In order to omit the screwing step of the bolt from such a fastening method, there is one that fastens the exterior member to the vehicle body using a clip constituted by a grommet and a pin. Such a clip includes, for example, a grommet that is elastically deformed and screwed into a female screw portion of a weld nut provided on the mounting member, and a pin that engages with the mounted member at one end and is received by the grommet at the other end. (For example, patent document 1).

In the clip according to Patent Document 1, when the pulling force from the grommet is applied to the pin in a state where the grommet is screwed into the female screw portion, the engagement between the pin and the grommet and the engagement between the grommet and the female screw portion are strengthened. , Can hold the fixed state. Further, since the clip is fixed to the female screw portion by screw engagement, the fastening by the clip can be released by rotating the clip in a direction for releasing the screw engagement by a screwdriver or the like.
JP 2006-226471 A

  However, in the clip according to Patent Document 1, since the grommet can be elastically deformed in a state where no pulling force is applied to the pin, there is a problem that the screw engagement between the grommet and the female screw portion is weak and a pitch shift or the like occurs. . Further, when the engagement between the clip and the female screw portion is released, there is a problem that the screw must be continuously rotated until the engagement between the grommet and the female screw portion is released by a screwdriver or the like.

  The present invention has been made in view of the above problems, and has a simple structure including a pin and a grommet, and can be strongly engaged with the female screw portion to generate a high extraction force. An object is to provide a reusable clip that is easy to remove.

  In order to solve the above-mentioned problem, the first invention of the present invention is a first member (100) having a female screw hole (103) and at least one second member (200) having a through hole (201). A base (4) larger than the through hole, a leg (5) projecting from the base, and a female screw hole provided on the outer peripheral surface of the leg. A grommet (2) having one or more male screw parts (14) and a pin hole (6) drilled through the base and the leg, a head (31) facing the base, and a head And a pin (3) having a shaft portion (32) projectingly inserted into the pin hole, and the grommet is directed to the head side as it goes toward the head side and proceeds in one of the circumferential directions of the pin hole. Having at least one inclined surface (15) inclined so as to approach or separate, the pin being inclined When the pin is pressed in the direction to be inserted into the grommet, the protrusion is on the inclined surface from one end side (15a) to the other end side. (15b), and the protrusion slides on the inclined surface from one end side to the other end side, so that the grommet rotates relative to the pin in the direction in which the male screw portion is screwed into the female screw hole. As described above, the inclination of the inclined surface is set.

  According to a second invention, in the first invention, when the pin is inserted into the pin hole, a guide groove (18) for positioning the protrusion on one end side of the inclined surface is provided in either the grommet or the pin. The other is provided with a protrusion (38) that engages with the guide groove.

  In a third aspect based on the second aspect, the protrusion is formed so as to be detachable from the guide groove when the protrusion is pressed in a direction in which the pin is inserted into the grommet from a state where the protrusion is positioned on one end side of the inclined surface. One of the grommet and the pin is provided with an engagement groove (19) that engages with the protrusion in a state where the protrusion is located on the other end side of the inclined surface. .

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, in the state where the protrusion is positioned on one end side of the inclined surface, the recess (36) The male screw part is elastically displaceable inward of the pin hole.

  According to a fifth aspect based on the fourth aspect, in a state where the protrusion is positioned on the other end side of the inclined surface, the portion corresponding to the rear surface of the male screw portion in the shaft portion is in contact with the rear surface of the male screw portion ( 39) is formed, and the male screw portion is restricted from being elastically displaced inward of the pin hole.

  A sixth invention is any one of the first to fifth inventions, wherein the pin includes a step portion (40) having a flat surface (40a) facing the head side of the pin on the outer peripheral surface of the shaft portion, and the grommet Is provided with an engaging portion that engages with the stepped portion and restricts the movement of the pin in the detaching direction from the grommet.

  According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the surface of the step portion facing the head side is formed between the step portion and the engaging portion when the protrusion slides from one end side to the other end side of the inclined surface. It is characterized in that it is inclined with respect to a plane perpendicular to the axis of the pin hole so that the engagement is continued.

  According to an eighth invention, in any one of the first to seventh inventions, the grommet has a locking portion (17) projecting in the axial direction of the pin hole on one end side of the inclined surface. And

  The clip which concerns on 1st invention can screw a grommet to a female screw hole by pressing in the direction which inserts a pin in a grommet. The positional relationship between the grommet and the pin is regulated by the contact between the inclined surface provided on the grommet and the protruding portion provided on the pin. When the pin is pressed in the direction of inserting the pin into the grommet, the protruding portion has one end on the inclined surface. Slide from one side to the other. That is, when the pin is pressed in the direction in which it is inserted into the grommet, the grommet rotates with respect to the pin. The rotation direction of the grommet with respect to the pin is formed so as to coincide with the rotation direction in which the male screw portion of the grommet is screwed into the female screw hole of the first member. The male threaded portion of the grommet can be screwed into the female threaded hole. Accordingly, it is possible to provide a clip capable of further strengthening the engagement with the female screw hole by a simple operation from the state inserted in the female screw hole.

  According to the second invention, the initial position of the rotational position of the pin relative to the grommet when the pin is assembled to the grommet can be defined. Thereby, in an initial state, a pin comes to be arrange | positioned in the position which can be rotated with respect to a grommet. According to the third aspect, the rotational position of the pin with respect to the grommet is fixed in a state where the protruding portion of the pin moves to the other end side of the inclined surface. That is, the positional relationship between the two can be fixed after the grommet is rotated with respect to the pin. According to the fourth invention, when the grommet is inserted into the female screw hole, the male screw part can be elastically displaced inward of the pin hole to weaken contact with the female screw hole. It is possible to prevent the thread from being licked. Further, by applying a predetermined removal force, the grommet (clip) can be detached from the female screw hole without licking the thread, and a reusable clip can be obtained. According to the fifth invention, in a state where the protruding portion of the pin moves to the other end side of the inclined surface, the contact portion comes into contact with a portion corresponding to the back surface of the male screw portion, so that the male screw portion enters the inside of the pin hole. Since the elastic displacement is regulated, the screwed state of the male screw portion and the female screw hole can be maintained even with a high removal force. According to the sixth invention, it is possible to prevent the pin from being detached from the grommet. According to the seventh aspect of the present invention, since the engaging portion of the grommet and the stepped portion of the pin continue to be engaged regardless of the rotational positional relationship between the grommet and the pin, rattling is prevented. Can do. According to the eighth aspect of the invention, the rotation of the pin in the rotational direction that moves the protrusion from the other end side to the one end side is restricted by the locking of the protrusion and the locking portion. When rotated in the direction, the grommet rotates integrally with the pin. Since the rotation direction coincides with the rotation direction opposite to the direction in which the male screw portion is screwed into the female screw hole, the grommet can be detached from the female screw hole by applying a rotational force to the pin in the rotation direction. It becomes like this. Thus, the grommet can be detached from the female screw hole without the thread being licked.

  Hereinafter, an embodiment of a clip according to the present invention will be described with reference to the drawings.

<Clip configuration>
1 is a perspective view showing a clip according to an embodiment of the present invention, FIG. 2 is a perspective view showing a grommet according to the embodiment of the present invention, FIG. 3 is a perspective view showing a pin according to the embodiment, and FIG. 4 is an embodiment. It is a perspective view which fractures | ruptures and shows a part of clip. 5 and 6 are a front view and a side view showing the clip according to the embodiment. 7 and 8 are perspective views showing the grommet seen from the direction of arrow VII or arrow VIII in FIG. 2, and FIGS. 9 and 10 show the pin seen from the direction of arrow IX or arrow X in FIG. It is a perspective view shown. For convenience of explanation, the upper part in FIGS.

  As shown in FIG. 1, the clip 1 includes a substantially cylindrical grommet 2 and a pin 3 inserted into the grommet 2. Grommet 2 and pin 3 are formed separately and then combined to form clip 1. The grommets 2 and the pins 3 are formed, for example, by injection molding a hard resin material.

  As shown in FIG. 2, the grommet 2 includes a base portion 4 and leg portions 5 projecting downward from the base portion 4 as main components. The base portion 4 and the leg portion 5 are provided with pin holes 6 that are formed so as to penetrate each of them. The base portion 4 includes a flange portion 7 projecting in the radial direction of the pin hole 6 and a rib 8 for giving strength to the flange portion 7.

  The leg 5 has a cylindrical shape having a pin hole 6 in the center. As shown in FIGS. 2 and 5, the leg portion 5 is provided with two slits 9 extending from the lower end of the leg portion 5 to the vicinity of the upper end, and the leg portion 5 has a gap between the two slits 9. A pin locking piece 10 that hangs downward from the upper end is formed. As shown in FIG. 4, an engaging portion 11 that protrudes inward of the pin hole 6 is provided at the tip of the pin locking piece 10.

  As shown in FIG. 2 and FIG. 6, an inverted U-shaped inverted U-shaped slit 12 is formed on the side of the leg 5. Two inverted U-shaped slits 12 are provided at positions facing each other with respect to the pin hole 6. Due to the inverted U-shaped slits 12, the positions surrounded by the respective slits 12 protrude from the distal end side of the leg portion 5 to the base portion 4 side, and are cantilever-shaped that can be elastically displaced inward of the pin hole 6. An elastic piece 13 is formed. A male screw portion 14, which is a part of a male screw protruding outward from the leg portion 5, is provided at the distal end portion of each elastic piece 13. Each male screw portion 14 is formed as a right-handed screw that cooperates with the downward direction in the axis of the pin hole 6 as a screwing direction.

  As shown in FIG. 7, the peripheral portion of the pin hole 6 of the base portion 4 extends in the circumferential direction of the pin hole 6, and goes downward or upward as it proceeds in one of the circumferential directions. An inclined surface 15 that is inclined with respect to a plane orthogonal to the axis is provided. Three inclined surfaces 15 are provided on the same circumference centered on the axis of the pin hole 6, and each inclined surface 15 is provided at a position shifted by 120 ° from the axis of the pin hole 6. It is provided so as to have the same inclination angle with respect to a plane orthogonal to the axis of the hole 6. In this embodiment, when the base 4 is viewed from above, the inclined surface 15 moves from the upper end side 15a on one side to the lower end side 15b on the other side as it proceeds counterclockwise about the axis of the pin hole 6. It is formed on the down slope so as to go downward.

  A portion 16 adjacent to the lower end side 15b of the inclined surface 15 in the circumferential direction of the pin hole 6 is provided with a bottom portion 16 parallel to a surface orthogonal to the axis of the pin hole 6, and the bottom portion 16 corresponds to the other inclined surface 15. The upper end side 15a is adjacent to the pin hole 6 in the circumferential direction. On the upper end side 15 a of the inclined surface 15, a locking portion 17 that functions as a detent is protruding upward in the axial direction of the pin hole 6.

  A guide groove 18 extending in the axial direction of the pin hole 6 is formed on the inner side surface 5 a of the leg portion 5. The upper end portion of the guide groove 18 communicates with the inclined surface 15. When the position where the guide groove 18 is provided is different, the upper end portion of the guide groove 18 may communicate with the bottom portion 16. As shown in FIG. 8, the positional relationship between the pin 3 and the grommet 2 after the pin 3 is rotated with respect to the grommet 2 is fixed to the inner side surface 5 a of the leg portion 5 by pushing the pin 3 to be described later. A lock groove 19 is formed as an engagement groove for this purpose.

  As shown in FIG. 3, the pin 3 includes a head portion 31 and a columnar shaft portion 32 protruding from the center portion of the lower surface 31 b of the head portion 31 as main components. A groove 33 that can be engaged with a known driver or the like is formed on the other side of the upper surface 31a of the head 31 from which the shaft portion 32 protrudes.

  The shaft portion 32 includes a raised end portion 34 adjacent to the head portion 31, a distal end portion 35, and a reduced diameter portion 36 between the raised end portion 34 and the distal end portion 35. The diameters of the starting end portion 34 and the leading end portion 35 are set to the same size as the diameter of the pin hole 6 of the grommet 2. The reduced diameter portion 36 is formed to have a smaller diameter than the starting end portion 34 and the distal end portion 35 so that the elastic piece 13 of the grommet 2 can be elastically deformed inward of the pin hole 6.

  As shown in FIGS. 3 and 9, three protrusions 37 are provided at the joint between the lower surface 31 b of the head 31 and the raised end 34. The three projecting portions 37 are provided at 120 ° intervals with respect to the axis of the shaft portion 32. Each protrusion 37 has the same shape, and the lower end 37a is arranged at the same distance from the lower surface 31b of the head 31 in the axial direction of the shaft 32.

  When the shaft portion 32 of the pin 3 is inserted into the pin hole 6 of the grommet 2 from the base 4 side, the lower end portion 37a of each projection portion 37 comes into contact with the corresponding inclined surface 15 of the grommet 2. Thus, the position of the pin hole 6 in the axial direction of the pin 3 with respect to the grommet 2 is regulated. In a state where the lower end portion 37a of the projection portion 37 is in contact with the inclined surface 15, the lower end portion 37a of each projection portion 37 is in contact with the upper end side 15a of each inclined surface 15 of the grommet 2 and the pin 3 The rotational position state is a first state, and the rotational position state of the grommet 2 and the pin 3 in a state where the lower end portion 37a of each projection 37 is in contact with the bottom portion 16 of the grommet 2 is a second state.

  As shown in FIG. 10, a protrusion 38 that engages with the guide groove 18 of the grommet 2 is formed on the outer peripheral surface of the tip portion 35. The protrusion 38 restricts the positional relationship of the pin 3 around the axis of the pin hole 6 with respect to the grommet 2 when the pin 3 is inserted into the grommet 2 by engaging with the guide groove 18. The circumferential position of the tip portion 35 of the protrusion 38 is set so that the initial state when the pin 3 is inserted into the grommet 2 is the first state.

  On the outer peripheral surface of the reduced diameter portion 36, two abutting portions 39 projecting in the radial direction of the shaft portion 32 are provided at positions symmetrical to the axis of the shaft portion 32. The contact portion 39 protrudes to the outer peripheral surfaces of the starting end portion 34 and the tip end portion 35 in the radial direction of the shaft portion 32. The contact portion 39 is provided at a portion corresponding to the back surface of the male screw portion 14 when the pin 3 and the grommet 2 are combined and the rotational position of the pin 3 and the grommet 2 is in the second state.

  A step portion 40 is formed at a boundary portion between the tip portion 35 and the reduced diameter portion 36 over a part in the circumferential direction. The surface 40a facing the head portion 31 side of the stepped portion 40 is inclined so as to go upward or downward as it goes in the circumferential direction of the shaft portion 32, and the inclination angle of the shaft portion 32 with respect to the plane orthogonal to the axis is inclined. It is formed similarly to the surface 15 and the inclination angle.

  The grommet 2 and the pin 3 are assembled by inserting the shaft portion 32 of the pin 3 from the tip portion 35 into the pin hole 6 from the base 4 side of the grommet 2. When the pin 3 is inserted into the grommet 2, the rotational position of the pin 3 around the axis of the pin hole 6 with respect to the grommet 2 is restricted by the engagement between the guide groove 18 and the protrusion 38, and the lower end of the protrusion 37 of the pin 3. 37 a is guided to the upper end side 15 a of the inclined surface 15 of the grommet 2. When the insertion of the pin 3 into the grommet 2 proceeds, the tip portion 35 of the shaft portion 32 comes into contact with the engaging portion 11 of the pin locking piece 10, and the engaging portion 11 is moved outward of the pin hole 6 by the tip portion 35. The pin locking piece 10 is pushed and elastically deformed. When the lower end 37a of the protrusion 37 contacts the upper end 15a of the inclined surface 15, the insertion of the pin 3 into the grommet 2 is completed. At this time, the stepped portion 40 positioned at the upper end of the tip portion 35 is positioned below the engaging portion 11, the pin locking piece 10 is returned to the original position by the restoring force, and the engaging portion 11 is located inside the pin hole 6. It protrudes in the direction and engages with the step 40. This state is the initial state. In the initial state, the rotational position state of the grommet 2 and the pin 3 is the first state.

  When the pin is further pushed in the direction in which the pin 3 is inserted into the grommet 2 in the initial state in which the grommet 2 and the pin 3 are assembled, the lower end portion 37a of the projection 37 changes the inclined surface 15 from the upper end side 15a to the lower end side 15b. Move to. At this time, as viewed from the head 31 side of the pin 3, the grommet 2 rotates clockwise around the shaft portion 32 of the pin 3. When the lower end portion 37a of the projection 37 passes through the lower end side 15b and reaches the bottom portion 16, the rotation of the grommet 2 with respect to the pin 3 ends. This state is a state after the clip 1 is rotated.

  In the process of changing from the initial state to the post-rotation state, the protrusion 38 is detached from the guide groove 18 and engages with the lock groove 19 when the post-rotation state is reached. The protrusion 38 is preferably formed to be shallowly engaged with the guide groove 18 so as to be easily detached from the guide groove 18 and is chamfered.

<Effects of Embodiment>
Next, a method for fixing a plurality of members using the clip according to the embodiment will be described. FIG. 11 is a longitudinal sectional view showing a fastening structure of members by the clip of the embodiment, and is a view showing a state when the clip is inserted into the female screw hole. FIG. 12 is a longitudinal cross-sectional view showing a fastening structure of members by the clip of the embodiment, and is a view showing a structure in which the clip is in an initial state. 13 is a cross-sectional view showing the clip viewed from the direction of arrow XIII in FIG. FIG. 14 is a longitudinal cross-sectional view showing a fastening structure of members by the clip of the embodiment, and is a view showing a structure in which the clip is in a post-rotation state. FIG. 15 is a cross-sectional view showing the clip viewed from the direction of arrow XV in FIG. FIG. 16 is a cross-sectional view showing the clip viewed from the direction of the arrow XVI in FIGS. 12 and 13. FIG. 17 is a cross-sectional view showing the clip viewed from the direction of arrow XVII in FIGS. 14 and 15.

  As shown in FIG. 11, the clip 1 according to the embodiment fixes the first member 100 having the female screw hole 103 and the second member 200 having the through hole 201. The first member 100 is a frame that forms, for example, a vehicle body of an automobile, and a female screw hole 103 is formed by a hole 101 formed in the first member 100 and a weld nut 102 having a female screw portion fixed to the hole 101. Has been. The weld nut 102 has a right-handed female screw portion, and the female screw hole 103 has a shape that matches the male screw portion 14 of the grommet 2.

  The second member 200 is an exterior member such as a heat shield, for example, and is disposed so as to overlap with the first member 100, and a through hole 201 is formed at a position that coincides with the female screw hole 103 of the first member 100. The hole 101 of the first member 100 and the through hole 201 of the second member 200 are formed so as to be larger than the outer diameter of the leg portion 5 of the grommet 2 and smaller than the diameter of the flange portion 7 of the base portion 4.

  The clip 1 is inserted from the distal end portion 35 of the pin 3 into the female screw hole 103 through the through hole 201 of the second member 200 from the second member 200 side. At this time, the rotational positional relationship between the grommet 2 and the pin 3 is in the first state, and the elastic piece 13 can be elastically deformed inward of the pin hole 6, so that the threads of the male screw portion 14 and the female screw hole 103 are The clip 1 is smoothly inserted into the female screw hole 103 without being licked.

  As illustrated in FIG. 12, the insertion of the clip 1 is finished in a state where the lower surface 7 a of the flange portion 7 is in contact with the upper surface 200 a of the second member 200. At this time, the male screw portion 14 engages with a part of the female screw hole 103. In this state, the second member is gripped by the first member and the flange portion 7 of the clip 1 engaged with the first member.

  In this state, if the head 3 of the pin 3 is pressed to the lower side in the axial direction of the pin hole 6, that is, the grommet side without rotating the pin 3 around the axis of the shaft portion 32, the protruding portion of the pin 3 The lower end portion 37 a of the pin 37 slides from the upper end side 15 a to the lower end side 15 b while pressing the inclined surface 15 of the grommet 2, and the shaft portion 32 of the pin 3 when the grommet 2 is viewed from the head 31 side of the pin 3. Rotate clockwise. The rotation of the grommet 2 is terminated when the lower end portion 37a of the protrusion 37 reaches the bottom portion 16.

  As shown in FIG. 14, in the state after the clip 1 rotates, the head portion 31 of the pin 3 approaches the base portion 4 of the grommet 2, and the grommet 2 is rotated around the shaft portion 32 of the pin 3. The rotation position of the pin 3 and the grommet 2 with respect to the axis of the shaft portion 32 is changed from the initial state shown in FIG. 13 to the second state shown in FIG. When viewed from the portion 31 side, the pin 3 is rotated about 80 ° clockwise around the shaft portion 32. As a result, the male threaded portion 14 of the grommet 2 is screwed about 80 ° with respect to the female threaded hole 103, and the fastening between the grommet 2 and the female threaded hole 103 is strengthened. Further, since the grommet 2 is screwed into the female screw hole 103, the distance between the first member 100 and the lower surface 7a of the flange portion 7 of the clip 1 is reduced, and the first member 100 and the second member 200 are fastened. Strengthened.

  Also, as shown in FIG. 16, the contact portion 39 is not located on the back surface of the male screw portion 14 in the initial state, but the contact portion 39 is not located on the male screw portion 14 in the post-rotation position as shown in FIG. It comes to be located on the back. Thereby, since the inward displacement of the pin hole 6 of the elastic piece 13 and the male screw part 14 is regulated, the engagement between the male screw part 14 and the female screw hole 14 is maintained, and the extraction force of the clip 1 is maintained. Can be increased.

  As shown in FIG. 17, the protrusion 38 of the pin 3 engages with the lock groove 19 of the grommet 2 in the post-rotation state. As a result, the clip 1 can maintain the post-rotation state.

  Next, a method for removing the clip 1 from the first member 100 and the second member 200 will be described. First, in the post-rotation state of the clip 1, for example, a minus driver or the like is engaged with a groove 33 provided in the head portion 31 of the pin 1, so that the shaft portion 32 is opposite from the head portion 31 side of the pin 3. Rotate pin 3 clockwise. As a result, the rotational positional relationship between the pin 3 and the grommet 2 is changed from the second state to the first state.

  When the rotational positional relationship between the pin 3 and the grommet 2 is in the first state, the elastic piece 13 can be elastically deformed inward of the pin hole 6, so that a predetermined removal force is applied to the clip 1. The engagement between the male screw portion 14 and the female screw hole 103 can be released and extracted. At this time, the movement of the pin 3 with respect to the grommet 2 in the direction of extracting the pin 3 from the grommet 2 is restricted by the engagement between the step portion 40 of the pin 3 and the engaging portion 11 of the grommet 2. The grommet 2 can be detached from the female screw hole 103 and the through-hole 101 integrally with the pin 3 by grasping the head 31 and applying an extraction force to the pin 3. In the 1st state, since the space which can put a finger etc. is formed between the head 31 of the pin 3 and the base 4 of the grommet 2, it is easy to handle.

  On the other hand, when the rotational positional relationship between the pin 3 and the grommet 2 is in the first state, the clip 1 can also be rotated by rotating the pin 3 counterclockwise as viewed from the head 31 side of the pin 3. Can be removed. When the rotation of the pin 3 is further continued from the first state, the protruding portion 37 of the pin 3 comes into contact with the locking portion 17 of the grommet 2 and the rotation of the pin 3 with respect to the grommet 2 is restricted, so that the grommet 2 is integrated with the pin 3. Rotate. Since the rotation direction is opposite to the rotation direction in which the male screw portion 14 is screwed into the female screw portion 103, the grommet 2 is sent out from the female screw hole 103 and the clip 1 is removed by continuing the rotation.

<Partly modified embodiment>
FIG. 18: is a longitudinal cross-sectional view which shows the fastening structure of the member by the clip concerning the some deformation | transformation embodiment of the clip concerning embodiment. The same components as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted. The clip 300 according to the partially modified embodiment is different from the above-described embodiment in that the base portion 4 of the grommet 2 has two flange portions 7a and 7b.

  The base portion 4 includes two flange portions 7 a and 7 b parallel to a plane orthogonal to the axis of the pin hole 6 so as to face each other with a gap corresponding to the thickness of the second member 200.

  The clip 300 according to the partially modified embodiment is attached to the through hole 201 of the second member 200 in advance when the first member 100 and the second member 200 are fastened. The through hole 201 is configured to have flexibility, for example, so that the flange portion 7b of the clip 300 can pass therethrough. The second member 200 is gripped between the two flange portions 7 a and 7 b by inserting the clip 300 into the through hole 201. In this state, the first member and the second member are fixed by inserting the grommet 2 of the clip 300 into the female screw hole 103 of the first member. The fastening structure between the clip 300 and the first member 100 is the same as that in the above-described embodiment.

  With this configuration, the clip 300 can be attached to the second member 200 in advance. The workability in the assembly process can be improved by assembling the clip in advance to the second member 200 as the attached member and supplying the clip to the automobile assembly process.

  Although the description of the specific embodiment is finished as above, the present invention is not limited to the above embodiment and can be widely modified. For example, in the embodiment, the inclined surface of the grommet is formed so as to go downward from the upper end side to the lower end side as it proceeds counterclockwise around the axis of the pin hole when the base of the grommet is viewed from above. The inclined surface may be formed so as to go downward from the upper end side 15a to the lower end side 15b as it goes clockwise (see FIG. 19). In this case, when the pin is pressed in the insertion direction with respect to the grommet, the grommet rotates counterclockwise when viewed from the head side of the pin. By forming a left-hand thread, the grommet can be screwed into the female screw hole in the same manner as the clip of the embodiment. Further, the number of inclined surfaces can be changed. Moreover, in this embodiment, although the inclined surface was arrange | positioned in the periphery of a pin hole, you may arrange | position in the position away from pin holes, such as a flange part of a base, for example. Moreover, the shape of the pin and the grommet in the embodiment is merely an example, and can be widely changed. Other clip configurations can be changed as appropriate without departing from the spirit of the invention.

It is a perspective view which shows the clip of embodiment. It is a perspective view which shows the grommet which concerns on embodiment. It is a perspective view which shows the pin which concerns on embodiment. It is a perspective view which partially cuts and shows the clip of embodiment. It is a front view which shows the clip which concerns on embodiment. It is a side view showing a clip concerning an embodiment. It is a perspective view which shows the grommet seen from the direction of arrow VII of FIG. It is a perspective view which shows the grommet seen from the direction of arrow VIII of FIG. FIG. 4 is a perspective view showing a pin viewed from the direction of arrow IX in FIG. 3. It is a perspective view which shows the pin seen from the direction of arrow X of FIG. It is a longitudinal cross-sectional view which shows the fastening structure of the member by the clip of embodiment, Comprising: The state at the time of inserting a clip in a female screw hole is shown. It is a longitudinal cross-sectional view which shows the fastening structure of the member by the clip of embodiment, Comprising: The structure which has a clip in an initial state is shown. It is sectional drawing which shows the clip seen from the direction of arrow XIII of FIG. It is a longitudinal cross-sectional view which shows the fastening structure of the member by the clip of embodiment, Comprising: The structure which has a clip in the state after rotation is shown. It is sectional drawing which shows the clip seen from the direction of arrow XV of FIG. It is sectional drawing which shows the clip seen from the direction of arrow XVI of FIG. 12 and FIG. It is sectional drawing which shows the clip seen from the direction of arrow XVII of FIG. 14 and FIG. It is a longitudinal cross-sectional view which shows the fastening structure of the member by the clip concerning some deformation | transformation embodiment. It is a perspective view which shows the grommet of the clip concerning alternative embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Clip 2 Grommet 3 Pin 4 Base part 5 Leg part 5a Inner side surface 6 Pin hole 7 Flange part 10 Pin locking piece 11 Engagement part 12 Slit 13 Elastic piece 14 Male thread part 15 Inclined surface 18 Guide groove 19 Lock groove 31 Head 32 Shaft part 37 Projection part 38 Projection part 39 Contact part 40 Step part 100 First member 103 Female screw hole 200 Second member

Claims (8)

A clip for fastening a first member having a female screw hole and at least one second member having a through hole,
A base larger than the through hole, a leg projecting from the base, one or more male screw portions provided on an outer peripheral surface of the leg and screwed into the female screw hole, the base and the leg A grommet having a pin hole drilled therethrough,
A pin having a head portion facing the base portion and a shaft portion protruding from the head portion and inserted into the pin hole;
The grommet has at least one inclined surface that is inclined to approach or separate from the head as it goes to the head side and proceeds in one of the circumferential directions of the pin hole,
The pin has at least one protrusion that is in sliding contact with the inclined surface,
When the pin is pressed in the direction to be inserted into the grommet, the protrusion slides on the inclined surface from one end side to the other end side,
When the protrusion slides on the inclined surface from the one end side to the other end side, the grommet rotates relative to the pin in a direction in which the male screw portion is screwed into the female screw hole. Thus, the inclination of the said inclined surface is set, The clip characterized by the above-mentioned.   When the pin is inserted into the pin hole, a guide groove for positioning the protrusion on the one end side of the inclined surface is provided on one of the grommet and the pin, and the guide groove is provided on the other The clip according to claim 1, wherein an engaging protrusion is provided. The protrusion is formed to be detachable from the guide groove when the protrusion is pressed in a direction in which the pin is inserted into the grommet from a state where the protrusion is positioned on the one end side of the inclined surface.
One of the grommet and the pin is provided with an engagement groove that engages with the protrusion in a state where the protrusion is positioned on the other end side of the inclined surface. The clip according to claim 2.   In the state where the protrusion is positioned on the one end side of the inclined surface, a recess is formed in a portion corresponding to the back surface of the male screw portion in the shaft portion, and the male screw portion is inward of the pin hole. The clip according to claim 1, wherein the clip is elastically displaceable.   In a state where the protrusion is positioned on the other end side of the inclined surface, a contact portion that contacts the back surface of the male screw portion is formed at a portion corresponding to the back surface of the male screw portion in the shaft portion. The clip according to claim 4, wherein the male screw part is restricted from being elastically displaced inward of the pin hole. The pin includes a step portion having a flat surface facing the head side of the pin on an outer peripheral surface of the shaft portion,
The said grommet is provided with the engaging part which engages with the said step part, and regulates the movement of the removal direction of the said pin from the said grommet, The claim in any one of Claims 1-5 characterized by the above-mentioned. The described clip.   The surface of the step portion facing the head side is engaged with the engagement portion when the protruding portion slides from the one end side to the other end side of the inclined surface. The clip according to claim 6, wherein the clip is inclined so as to approach or separate from the head as it continues in one of the circumferential directions of the pin hole.   The said grommet has the latching | locking part projected in the axial direction of the said pin hole in the said one end side of the said inclined surface, The Claim 1 characterized by the above-mentioned. clip.

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