JP2014228112A - Mounting structure for mounting member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure for a mounting member capable of mounting a clip to a boss part without play, and capable of mounting the mounting member to a mounted member without play.SOLUTION: A boss part 2 having a mounting hole 5 is provided in a mounting member 1, and a mounting hole 8 is formed in a mounted member 7, and a clip 10 includes a pair of elastic fitting pieces 20 bendable and extended to fasten the boss part 2 through a connection part 22, an engagement shoulder part 25 engaged with a rear side peripheral end of the mounting hole 8, and an engagement part 30 projecting from an inner side of the elastic fitting piece 20 and inserted into the mounting hole 5 of the boss part. The engagement part 30 is elastically abutted to inner peripheries 5a and 5b facing with each other of the mounting hole 5 in the state that the clip 10 is inserted and fitted in the mounting hole 8 and the pair of the elastic fitting pieces 20 are contracted.

Description

  The present invention relates to an attachment structure for an attachment member for attaching the attachment member to a member to be attached via a clip.

  When attaching a mounting member such as a trim board or garnish to a mounted member such as a vehicle body panel or a vehicle body frame, a clip is previously attached to the boss provided on the mounting member, and the boss is The attachment member is attached to the attachment member via the clip by being inserted into the attachment hole of the attachment member and engaged therewith.

  For example, in the following Patent Document 1, in an automobile interior material mounting structure in which an automobile interior material is attached to a vehicle body via a clip, the clip includes a J-shaped base body having a locking shoulder on the outer surface, and the inner surface side of the base body A pair of engaging arms that engage with an engaging hole provided in the boss portion are formed at the front end portion of the elastic piece, and the boss portion is provided at the rear end portion of the base body. A mounting structure for an automobile interior material in which a hook piece hooked at the tip is formed is described.

  Then, the hook of the clip is rotated while being hooked on the tip of the boss part protruding from the automobile interior material, and the pair of engagement arms are inserted into the engagement holes of the boss part to engage each engagement arm. By engaging with the upper and lower inner surfaces of the joint hole, the clip is attached to the boss portion. In this state, by inserting the boss portion together with the clip into the mounting hole of the vehicle body, the engagement shoulder of the clip engages with the back side of the mounting hole, and the automobile interior material can be attached to the vehicle body via the clip. ing.

JP 2006-132592 A

  However, the clip of the above-mentioned Patent Document 1 firmly engages the pair of engagement arms with the upper and lower inner surfaces of the engagement hole when a dimensional error occurs in the engagement hole of the boss part or the pair of engagement arms. In some cases, the clip could rattle against the boss. When the attachment member is engaged with the member to be attached via the clip having the backlash, the attachment member is loosened. As described above, when the mounting member is loose, abnormal noise or the like is likely to occur due to vibration or the like when the vehicle travels.

  Therefore, an object of the present invention is to provide an attachment structure for an attachment member that can attach a clip to a boss portion without backlash and can attach an attachment member to a member to be attached without backlash.

  In order to achieve the above object, the present invention is an attachment structure for attaching an attachment member to a member to be attached via a clip, and the attachment member is provided with an attachment hole for attaching the clip. A boss portion is provided, and an attachment hole into which the clip is inserted and engaged is formed in the attached member, and the clip is a pair of elastic locking pieces provided so as to sandwich the boss portion A connecting portion that connects the ends of the pair of elastic locking pieces, an engagement shoulder that is provided on the outer side of each elastic locking piece and engages with the rear side periphery of the mounting hole, and at least one elastic engagement An engaging portion that protrudes from the inside of the stopper piece and is inserted into the mounting hole of the boss portion, and the engaging portion is engaged with the clip being inserted into the mounting hole. The axial direction of the boss part of the mounting hole in a state where the diameter of the piece is reduced The inner periphery facing along, characterized in that it is configured to elastically contact.

  In the mounting structure of the mounting member of the present invention, it is preferable that the engaging portion has a frame shape in which both ends thereof are coupled to the inside of the elastic locking piece and a gap is formed on the inside.

  In the mounting structure of the mounting member of the present invention, it is preferable that the engaging portion is formed so that one end is connected to the inner side of the elastic locking piece and has a gap on the inner side.

  In the mounting structure of the mounting member according to the present invention, when the pair of elastic locking pieces is viewed from a direction orthogonal to the direction of diameter reduction, the engaging portion is directed from the distal end side in the protruding direction toward the proximal end side. It is preferably formed so as to be wide.

  In the mounting structure of the mounting member of the present invention, the clip is inserted into the mounting hole and engaged, and the pair of elastic locking pieces is reduced in diameter, and the engaging portion is the mounting hole, The part that elastically contacts the inner periphery of the boss portion in the axial direction is thicker than the portion of the mounting hole that elastically contacts the inner periphery of the boss portion in the axial direction. Preferably it is formed.

  In the mounting structure of the mounting member according to the present invention, the engaging portions project from the inside of the pair of elastic locking pieces, and at least one of the engaging portions forms the frame shape. Preferably it is.

  In the mounting structure of the mounting member of the present invention, the engaging portion that elastically contacts the mounting hole protrudes from the inside of one of the elastic locking pieces, and from the inside of the other elastic locking piece. It is preferable that a plate-like engagement protrusion having no gap protrudes.

  In the mounting structure of the mounting member according to the present invention, the pair of engaging portions protrude so as to pass each other when the pair of elastic locking pieces reduce the diameter, and when the pair of engaging portions pass. Moreover, it is preferable that the engaging claws for engaging the engaging portions are formed on the opposing surfaces.

  In the mounting structure of the mounting member according to the present invention, the engaging portion and the engaging protrusion protrude so as to pass each other when the pair of elastic locking pieces have a reduced diameter. It is preferable that an engaging claw for engaging the engaging portion and the engaging protrusion when the engaging protrusions pass each other is formed on the facing surfaces thereof.

  According to the present invention, in a state where the clip is inserted into and engaged with the mounting hole and the pair of elastic locking pieces is reduced in diameter, the engaging portion of the elastic locking piece is in the axial direction of the boss portion of the mounting hole ( Elastically abuts against the inner circumference facing the mounting hole (in the direction of insertion into the mounting hole), even if there is a dimensional error in the inner diameter of the mounting hole of the boss part or the size or position of the engaging part of the elastic locking piece The clip can be attached to the boss portion of the mounting member without rattling. As a result, the attachment member can be attached to the member to be attached through this clip without rattling. For example, when applied to the attachment of a vehicle or the like, it is possible to prevent the generation of abnormal noise due to rattling.

It is a perspective view which shows 1st Embodiment of the attachment structure of the attachment member which concerns on this invention. It is a front view of the clip which comprises the attachment structure. It is a top view of the clip which comprises the attachment structure. It is explanatory drawing which shows the state which mounted | wore the boss | hub part with the same clip. The state which attached the attachment member to the to-be-attached member via the clip is shown, (a) is the explanatory drawing, (b) is sectional drawing in the AA arrow line of (a). The 2nd Embodiment of the attachment structure of the attachment member which concerns on this invention is shown, and it is a front view of the clip which comprises the attachment structure. It is explanatory drawing which shows the state which mounted | wore the boss | hub part with the same clip. It is sectional drawing which shows the state which attached the attachment member to the to-be-attached member via the clip. The 3rd Embodiment of the attachment structure of the attachment member which concerns on this invention is shown, and it is a perspective view of the clip which comprises the attachment structure. It is explanatory drawing which shows the state which mounted | wore the boss | hub part with the same clip. It is sectional drawing which shows the state which attached the attachment member to the to-be-attached member via the clip. The 4th Embodiment of the attachment structure of the attachment member which concerns on this invention is shown, and it is a front view of the clip which comprises the attachment structure. It is sectional drawing which shows the state which attached the attachment member to the to-be-attached member via the clip. The 5th Embodiment of the attachment structure of the attachment member which concerns on this invention is shown, and it is a front view of the clip which comprises the attachment structure. It is sectional drawing which shows the state which attached the attachment member to the to-be-attached member via the clip.

  Hereinafter, with reference to FIGS. 1-5, 1st Embodiment of the attachment structure of the attachment member which concerns on this invention is described.

  As shown in FIGS. 1 and 5B, the attachment structure of the attachment member is for attaching the attachment member 1 to the attached member 7 via the clip 10. Examples of the mounting member 1 include a trim board, a garnish, an assist grip, a bumper, and a lamp. Examples of the mounted member 7 include a vehicle body panel and a vehicle body frame, but are not limited thereto. It is not something.

  A boss portion 2 for mounting the clip 10 is provided on the mounting member 1 in a protruding manner. The boss part 2 has a long plate-like wall part 3 projecting from the back surface of the mounting member 1 and a substantially T-shape extending in a rib shape and having shoulders 4a and 4a on the base end side. 3 have side walls 4 and 4 fixed on both sides. The front end portion 3a of the wall portion 3 has a tapered shape with tapered surfaces formed on both sides thereof, and an attachment hole for attaching a clip having a long hole is formed at a predetermined position in the axial direction of the wall portion 3. 5 is formed. On the other hand, the attachment member 7 has a long hole shape and an attachment hole 8 into which the clip 10 is inserted and engaged. In addition, although the boss | hub part 2 in this embodiment is integrally formed with respect to the attachment member 1, you may adhere the separate boss | hub part 2 to the attachment member 1 with an adhesive agent, a tape, etc., and is especially limited. Not. In addition, the “mounting hole” in the present invention is meant to include a concave portion, and may not be a hole having both ends penetrating like the mounting hole 5 of this embodiment.

  As shown in FIGS. 1 and 2, the clip 10 is connected to a connecting portion 22 bent in an arc shape, and the tip thereof is connected to the clip 10. It has a pair of elastic locking pieces 20 and 20 extended in the shape of a letter. The pair of elastic locking pieces 20, 20 is inserted into the mounting hole 8 while expanding in a V shape (see FIG. 2) in a free state where it is not inserted into the mounting hole 8 of the mounted member 7. When it is done, it is pressed against the inner periphery of the mounting hole 8 and bends in a direction approaching each other to reduce the diameter (see FIG. 5B). Note that the pair of elastic locking pieces 20 and 20 may have, for example, a substantially U-shape or a U-shape when viewed from the side, and may have any shape as long as the boss portion 2 is sandwiched therebetween.

  In addition, a concave boss fitting portion 24 whose opposing inner surfaces are substantially parallel to each other is provided on the inner side of the distal ends of the pair of elastic locking pieces 20, 20, and the distal end of the wall portion 3 of the boss portion 2. The portion 3a is fitted (see FIG. 4). Further, stepped engagement shoulders 25, 25 are formed on the outer side surfaces near the base ends of the respective elastic locking pieces 20 to engage with the rear peripheral edge of the mounting hole 8 of the mounted member 7. (See FIG. 5B).

  As shown in FIG. 2, knob pieces 27, 27 extend in the orthogonal direction from the base end outer surface of each elastic locking piece 20. The pair of knob pieces 27 and 27 are portions that are picked when the clip 10 is removed from the boss portion 2 to bend the pair of elastic locking pieces 20 and 20 inwardly. On the other hand, boss abutting portions 38 project from the inner end inner surface of each elastic locking piece 20, and when the engaging shoulder portion 25 is inserted into the mounting hole 8, They are in contact with both surfaces of the wall 3 respectively.

  The “inner side” and “outer side” of the elastic locking piece 20 mean that the pair of elastic locking pieces 20 and 20 are viewed from a direction perpendicular to the diameter reducing direction, that is, as shown in FIG. When the clip 10 is viewed from the front side, it means that it is inside or outside the elastic locking piece 20 (the same is true in the following description).

  As shown in FIG. 2, in this embodiment, a frame-like engagement portion 30 having a gap 35 is projected from the inside of one elastic locking piece 20. From the inside, a plate-like engagement protrusion 40 having no gap is protruded. The engaging portion 30 and the engaging protrusion 40 are displaced from each other so that they pass each other when the clip 10 is inserted into the mounting hole 8 and the pair of elastic locking pieces 20 and 20 are reduced in diameter. (See FIG. 5).

  As shown in FIG. 2, the engagement portion 30 has a pair of side pieces 31 and 32 having base ends connected to one elastic locking piece 20, and the pair of side pieces. The tip ends of 31 and 32 are connected to each other by a connecting portion 33, and a gap 35 is formed inside the side pieces 31 and 32 and the connecting portion 33, forming a frame shape that can be elastically deformed through the gap 35. Yes. Further, when the pair of elastic locking pieces 20 and 20 are viewed from the direction orthogonal to the diameter reduction direction, the both side pieces 31 and 32 of the engaging portion 30 are directed from the front end side to the proximal end side in the protruding direction. Thus, it has a substantially square shape that is inclined so as to become wider.

  The engaging portion 30 having the above-described frame shape has the clip 10 inserted into the mounting hole 8 of the mounted member 7, the pair of elastic locking pieces 20, 20 is reduced in diameter, and the engaging shoulder portion 25. 25 are engaged with the inner periphery of the mounting hole 5 facing the axial direction of the boss portion 2 in an engaged state with the rear peripheral edge of the mounting hole 8 (FIG. 5). (See (B)).

  That is, the engaging portion 30 is disposed in the mounting hole 5 of the boss portion 5 in a free state of the pair of elastic locking pieces 20 and 20 (see FIG. 4). 5 is separated from the inner peripheries 5a and 5b at both ends, but when the pair of elastic locking pieces 20 and 20 are reduced in diameter, the engaging portion 30 is moved to the back of the mounting hole 5 along with the reduced diameter. As a result, the side piece 31 elastically contacts the edge of the mounting hole 5 on the tip side inner periphery 5a in the axial direction of the boss portion 2 (hereinafter referred to as “tip inner periphery 5a”) and The piece 32 is configured to elastically contact the edge of the mounting hole 5 on the base end side inner periphery 5b in the axial direction of the boss portion 2 (hereinafter referred to as “base end inner periphery 5b”) (FIG. 5). (See partial enlarged view of (B)).

  As described above, the engaging portion 30 is disposed in the mounting hole 5 of the boss portion 2 in a free state of the pair of elastic locking pieces 20, 20, and both side pieces 31, 32 thereof are the boss portion 2. The mounting holes 5 are separated from the inner peripheries 5a and 5b of the both ends, but a pair of elastic members are formed in such a manner that the both side pieces 31 and 32 of the engaging portion 30 are in contact with the inner peripheries 5a and 5b of the mounting holes 5 As the locking pieces 20 and 20 are reduced in diameter, the side pieces 31 and 32 are bent and deformed, and the engaging portion 30 is inserted into the mounting hole 5 so that the side pieces 31 and 32 are connected to the inner circumferences 5a. , 5b may be elastically contacted. Further, the both side pieces 31, 32 of the engaging portion 30 may be in contact with the inner surfaces of the inner peripheries 5 a, 5 b of both ends of the mounting hole 5. That is, the “inner circumference” of the mounting hole in the present invention means the inner surface of the mounting hole 5 and the edge of the mounting hole 5.

  Further, the engaging portion 30 in this embodiment has a substantially trapezoidal frame shape composed of substantially C-shaped side pieces 31 and 32 and a connecting portion 33, but a frame shape or a mountain shape curved in an arc shape. As long as the clip is engaged with the mounting hole 8 and can be elastically brought into contact with the opposing inner circumferences 5a and 5b of the mounting hole 5, there is no particular limitation. Not.

  On the other hand, as shown in FIG. 2, the plate-like engagement protrusion 40 having no gap has a side surface 42 on the side of receiving the boss 2 of the mounting member 1 at a predetermined angle with respect to the inner surface of the elastic locking piece 20. Inclined downward at θ1 and the opposite side surface 41 is inclined at an angle θ2 smaller than the angle θ1 with respect to the inner surface of the elastic locking piece 20, and the front end side in the protruding direction is narrow. Thus, it is formed so as to become gradually wider toward the base end side.

  When the clip 10 is engaged with the attachment hole 8, the engagement protrusion 40 is partially engaged with the inner periphery 5 a of the distal end of the mounting hole 5 (FIG. 5B )reference). However, the both side surfaces 41 and 42 of the engaging protrusion 40 may be formed so as to engage with the opposite inner peripheries 5a and 5b of the mounting hole 5 of the boss portion 2, and there is no particular limitation.

  In addition, in a state where the pair of elastic locking pieces 20 and 20 are reduced in diameter, the coupling portion 33 of the engagement portion 30 and the opposing surfaces of the engagement protrusion 40 are disposed on the engagement portion 30 and the engagement surface. Engagement claws 37 and 43 project in a direction orthogonal to the mating projection 40 (see FIG. 3). In addition, the engaging claw 37 of the engaging part 30 is deviated to a position near the connecting part 22 of the elastic locking piece 20 of the connecting part 33 and is formed shorter than the engaging claw 43 of the engaging protrusion 40. (See FIG. 2).

  Furthermore, when the pair of elastic locking pieces 20, 20 are brought into contact with the outer end surfaces of the engagement claws 37, 43, the engagement portions 30 and the engagement protrusions 40 are brought into contact with each other. Inclined surfaces 37a and 43a are formed to be moved away from each other along the direction perpendicular to the diameter reducing direction of the locking pieces 20 and 20 (see FIG. 3). Therefore, when the diameter of the pair of elastic locking pieces 20 and 20 is reduced, both the engaging claws 37 and 43 are moved over each other via the inclined surfaces 37a and 43a so that the engaging claws 37 and 43 are engaged with each other. (See FIG. 5A). In addition, the said inclined surface should just be formed in at least one engagement nail | claw 37,43.

  Moreover, the front-end | tip of the engaging protrusion 40 is provided so that it may be located in the mounting hole 5 of the said boss | hub part 2 in the free state of a pair of elastic locking pieces 20 and 20 (refer FIG. 4). Furthermore, in this state, the engagement protrusion 40 is separated from the distal inner periphery 5a of the mounting hole 5, but may be configured to engage with the distal inner periphery 5a and the proximal inner periphery 5b of the mounting hole 5. .

  Next, a procedure for mounting the mounting member 1 to the mounted member 7 using the mounting structure for the mounting member having the above configuration will be described.

  First, in order to attach the clip 10 to the boss 2 projecting from the mounting member 1, the pair of side walls 4, 4 of the boss 2 is orthogonal to the diameter reduction direction of the pair of elastic locking pieces 20, 20. The clip 10 is pushed into the boss portion 2 so that the wall portions 3 of the boss portion 2 are sandwiched by the same pair of elastic locking pieces 20, 20 with the direction to be aligned. Then, the clip 10 is pushed in while being guided by the pair of side walls 4, 4, and the wall portion 3 of the boss portion 2 is inserted between the pair of elastic locking pieces 20, 20.

  Thereafter, the distal end portion 3a of the wall portion 3 of the boss portion 2 is pressed against the side piece 32 of the engaging portion 30 and the side surface 41 of the engaging protruding portion 40 so that the engaging portion 30 and the engaging protruding portion 40 are moved. The pair of elastic locking pieces 20 and 20 are opened away from each other, and the boss portion 2 is inserted while the distal ends of the engagement portion 30 and the engagement protrusion 40 are in sliding contact with the wall portion 3. .

  And the front-end | tip part 3a of the wall part 3 fits in the boss | hub fitting part 24, and the engaging part 30 and the engaging protrusion 40 are each inserted from the both sides of the mounting hole 5 of the boss | hub part 2, and the mounting hole 5 is inserted. Get inside. At this time, the frame-like engaging portion 30 and the plate-like engaging protrusion 40 are formed so that the front end side in the protruding direction is narrower than the base side, and therefore can be easily inserted into the mounting hole 5. .

  When the engaging portion 30 and the engaging protrusion 40 are inserted into the mounting hole 5, the pair of elastic locking pieces 20, 20 are elastically restored, and the wall portion 3 of the boss portion 2 is paired with the pair of elastic locking pieces 20. , 20. At this time, the engaging portion 30 and the engaging protrusion 40 are located in the mounting hole 5 of the boss portion 2 with their distal end portions in a free state of the pair of elastic locking pieces 20, 20. As shown in FIG. 4, when the pulling force is applied to the clip 10, the engaging portion 30 and the engaging protrusion 40 inserted into the mounting hole 5 of the boss portion 2 are hooked on the inner periphery of the mounting hole 5. Therefore, the clip 10 can be attached to the boss 2 in a state that prevents the clip 10 from coming off.

  Further, since the side piece 32 of the engaging portion 30 and the side surface 42 of the engaging protrusion 40 are inclined, the wall portion 3 of the boss portion 2 is inserted between the pair of elastic locking pieces 20, 20. When the side piece 32 and the side surface 42 are pressed, the pair of elastic locking pieces 20 and 20 are opened via the engaging portion 30 and the engaging protrusion 40, and the engaging portion 30 and the engaging protrusion 40 are opened. Since it enters the mounting hole 5, the mounting workability of the clip 10 to the boss portion 2 can be improved.

  In this state, the boss 2 of the mounting member 1 is inserted into the mounting hole 8 of the mounted member 7 together with the clip 10. Then, the outer surfaces of the pair of elastic locking pieces 20, 20 are pressed into the inner periphery of the mounting hole 8, and the pair of elastic locking pieces 20, 20 are pushed in while bending inward. The boss abutting portions 38 and 38 are brought into contact with both surfaces of the wall portion 3 of the boss portion 2 so that the bending amount of the pair of elastic locking pieces 20 and 20 is regulated. Thereafter, the inclined surfaces 37 a and 43 a of the engaging claws 37 and 43 of the engaging portion 30 and the engaging protrusion 40 come into contact with each other, and the engaging portion 30 and the engaging protrusion 40 are connected to the elastic locking piece 20. While moving away from each other along the direction orthogonal to the diameter reducing direction, the engaging claws 37 and 43 get over each other and overlap each other.

  Then, when the engagement shoulder portion 25 of the elastic locking piece 20 comes out from the rear side periphery of the mounting hole 8, the pair of elastic locking pieces 20, 20 are elastically restored, and the engagement portion 30 and the engagement protrusion 40 are The engaging claws 37 and 43 are engaged with each other. At the same time, the side piece 31 of the engagement portion 30 elastically contacts the edge of the inner periphery 5 a at the distal end of the mounting hole 5, and the side piece 32 elastically contacts the edge of the inner periphery 5 b of the base end of the mounting hole 5. The front end of the engaging protrusion 40 engages with the inner periphery 5 a of the front end of the mounting hole 5. Further, the engaging shoulders 25, 25 are engaged with the rear peripheral edge of the mounting hole 8, and the shoulders 4 a, 4 a of the side walls 4 of the boss part 2 are engaged with the front peripheral edge of the mounting hole 8, The attachment member 1 can be attached to the attached member 7 via 10 (see FIGS. 5A and 5B).

  In the mounting structure, the engaging portion 30 is disposed in the mounting hole 5 of the boss portion 5 in a free state of the pair of elastic locking pieces 20 and 20 (see FIG. 4), and the pair of elastic locking pieces. As the diameters 20 and 20 are reduced, the engaging portion 30 enters deeply into the mounting hole 5, whereby the side piece 31 elastically contacts the tip inner periphery 5 a of the mounting hole 5 of the boss portion 2. Since the side piece 32 elastically contacts the proximal inner periphery 5b of the mounting hole 5, for example, there is a dimensional error in the inner diameter of the mounting hole 5, the size or position of the engaging portion 30, and the like. Even in such a case, the side piece 31 and the side piece 32 are appropriately elastically deformed through the gap 35 to absorb the dimensional error and the like, and the clip 10 can be attached to the boss portion 2 without rattling. In this way, since the clip 10 can be attached to the boss portion 2 without rattling, the mounting member 1 can be attached to the mounting member 7 via the clip 10 without rattling. It is possible to effectively prevent the generation of abnormal noise.

  Further, the engaging portion 30 has a frame shape, and both side pieces 31 and 32 that are elastically contacted with the inner circumferences 5 a and 5 b at both ends of the mounting hole 5 of the boss portion 2 are connected by a connecting portion 33. Therefore, even if a strong pulling force acts on the boss portion 2, both side pieces 31, 32 of the engaging portion 30 can be made difficult to bend, and as a result, the pulling resistance force of the boss portion 2 against the clip 10 can be increased. The clip 10 can be securely attached to the attachment hole 5.

  Furthermore, since the frame-shaped engaging part 30 is formed to be wide from the front end side to the base end side in the protruding direction, when the frame-like engaging part 30 is inserted into the mounting hole 5 of the boss part 2, Since the base side is easily brought into close contact with the edge portions of the inner peripheries 5a and 5b at both ends of the mounting hole 5, the clip 10 can be mounted on the boss portion 2 with less backlash.

  Further, since the engaging portion 30 has a frame shape and the engaging protrusion 40 has a plate shape without a gap, the clip 10 can be attached to the boss portion 2 without rattling by the frame-shaped engaging portion 30. At the same time, the rigidity of the plate-like engagement protrusion 40 having no gap can be increased, and the pull-out resistance against the clip 10 when the pull-out force acts on the boss 2 can be further increased.

  Further, as shown in FIG. 5 (B), the clip 10 is inserted into and engaged with the mounting hole 8 of the mounted member 7, and the pair of elastic locking pieces 20 and 20 are reduced in diameter. Since the engaging portion 30 and the engaging protrusion 40 are inserted into the mounting hole 5 in a state where they pass each other, the backlash of the clip 10 with respect to the boss portion 2 can be more effectively prevented, and the boss portion 2 can be prevented. The pull-out resistance against the clip 10 when a strong pull-out force is applied can be further increased.

  By the way, when it is desired to remove the mounting member 1 from the mounted member 7 for reasons of repair, maintenance, replacement, etc., the mounting member 1 is attached to the mounted member 7 as shown by the arrow in FIG. Pull strongly. Then, the engagement shoulder portion 25 is pressed against the inner periphery of the attachment hole 8 of the member 7 to be attached, and the pair of elastic locking pieces 20 and 20 are further bent inward and reduced in diameter, while being reduced in diameter. The clip 10 and the boss 2 of the attachment member 1 are pulled out, and the attachment member 1 can be detached from the attachment member 7.

  Thus, when the mounting member 1 is removed from the mounted member 7, the pair of elastic locking pieces 20, 20 are elastically restored, and the engaging portion 30 and the engaging protrusion 40 are located in the mounting hole 5. Since the engaging claws 37 and 43 are engaged with each other, the clip 10 can be kept firmly attached to the boss portion 2 of the mounting member 1 as described above. Further, when the boss 2 and the clip 10 of the mounting member 1 are pulled out from the mounting hole 8 of the mounted member 7, the clip 10 is prevented from being detached from the boss 2 and remaining in the mounting hole 8. The clip 10 can be reliably pulled out together with the boss portion 2 from the hole 8.

  When the clip 10 is removed from the boss portion 2, the knob pieces 27 and 27 are picked and the pair of elastic locking pieces 20 and 20 are bent inward to engage the engaging claws 37 and 43 with each other. While releasing the state and maintaining the state, the clip 10 is moved to the front end side in the axial direction of the wall portion 3 of the boss portion 2, and the engaging portion 30 and the engaging protrusion 40 are moved from the mounting hole 5 of the boss portion 2. The clip 10 can be removed from the boss portion 2 by pulling out.

  6 to 8 show a second embodiment of a mounting structure for a mounting member 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 this embodiment, a frame-like engagement portion 30a having a gap 35 is projected from the inside of one elastic locking piece 20 of the clip 10a, and the other elastic locking piece 20 has an inner side, It has a structure in which a frame-like engagement portion and a plate-like engagement protrusion are not provided.

  Further, the frame-like engagement portion 30a is disposed inside the portion of the elastic locking piece 20 where the engagement shoulder portion 25 is provided. Specifically, the base end of the side piece 32 of the engaging portion 30 a is connected to a position that is substantially aligned with the engaging shoulder portion 25.

  Further, of the both side pieces 31, 32 of the engaging portion 30 a, the side piece 31 that elastically contacts the distal inner periphery 5 a of the mounting hole 5 elastically contacts the proximal inner periphery 5 b of the mounting hole 5. It is formed to be thicker than the side piece 32.

  In this embodiment, when the pair of elastic locking pieces 20, 20 is viewed from a direction orthogonal to the diameter reducing direction, the thickness of the side piece 31 is formed to be thicker than the thickness of the side piece 32. The rigidity of the piece 31 is configured to be higher than the rigidity of the side piece 32. Further, the side piece 31 may be formed thicker than the side piece 32 by providing a rib or a convex part on the side part in the width direction or the side part in the thickness direction of the side piece 31.

  That is, in the present invention, to form the engagement portion “thick” at the portion that abuts the inner periphery of the tip of the mounting hole, the engagement portion may be formed in the direction perpendicular to the diameter reduction direction or the pair of elastic locking pieces. It means that it is formed thick when viewed from the radial direction side.

  Further, as shown in FIG. 7, the distal end portion of the engaging portion 30 a is located in the mounting hole 5 of the boss portion 2 in a free state of the pair of elastic locking pieces 20, 20, and both side pieces 31, 32 is arranged so as to abut against the inner circumferences 5a and 5b at both ends of the mounting hole 5, so that the clip 10a can be mounted to the boss portion 2 in a retaining state.

  In this embodiment, the frame-shaped engaging portion 30 a is strongly pressed against the inner periphery of the mounting hole 8 when the pair of elastic locking pieces 20, 20 are inserted into the mounting hole 8 of the mounted member 7. Since the bending shoulders 25 are arranged on the inner side of the engagement shoulder portion 25 having a large deflection margin, when the pair of elastic locking pieces 20, 20 are reduced in diameter, the engagement portion is disposed at the back of the mounting hole 5 of the boss portion 2. 30a can be easily inserted, and can be easily brought into close contact with the edges of the inner peripheries 5a and 5b at both ends of the mounting hole 5 to further improve the backlash prevention performance of the clip 10a with respect to the boss portion 2.

  Further, the frame-like engagement portion 30a is formed with a thick side piece 31 that elastically contacts the inner periphery of the tip of the mounting hole 5 and a thin side piece 32 on the opposite side. When the pulling force is applied to the boss portion 2 while the elasticity is increased and the proximal end inner periphery 5b of the mounting hole 5 is easily contacted, the thick side piece 31 comes into contact with the inner peripheral end 5a of the mounting hole 5, The pulling-out resistance of the boss 2 against the clip 10a can be increased (see FIG. 8).

  9 to 11 show a third embodiment of a mounting structure for a mounting member 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 this embodiment, there is a structure in which frame-like engaging portions 30b and 30b each having a gap 35 project from the inside of the pair of elastic locking pieces 20 and 20 of the clip 10b. One side piece 31 of each engaging portion 30b adjacent to the connecting portion 22 of the elastic locking piece 20 is provided to project at an angle substantially orthogonal to the inner surface of the elastic locking piece 20 (see FIG. 9). In the state where the clip 10b is inserted into the mounting hole 8 of the mounted member 7 and the engagement shoulder portions 25 and 25 are engaged with the rear peripheral edge of the mounting hole 8, the side piece 31 of the engaging portion 30b is attached to the mounting hole 5. It is configured to elastically contact the inner surface and edge of the inner periphery 5a of the tip (see FIG. 11).

  In this embodiment, since the engaging portions 30 and 40 project from the inside of the pair of elastic locking pieces 20 and 20, the pair of engaging portions 30 and 40 are inserted into the mounting holes 5. Thus (see FIG. 10), the pulling-out resistance against the clip 10 when the pull-out force acts on the boss portion 2 can be increased.

  In particular, in this embodiment, since the frame-like engaging portions 30b and 30b project from each of the pair of elastic locking pieces 20 and 20, the clip 10 with respect to the boss portion 2 is less loose. Can be installed. In addition, the side piece 31 of the engaging portion 30 b that protrudes at an angle substantially orthogonal to the inner surface of the elastic locking piece 20 is in the state where the clip 10 is engaged with the mounting hole 8 and the inside of the tip of the mounting hole 5. Since it elastically contacts the inner surface and the edge of the circumference 5a (see FIG. 10), it is possible to further increase the pulling resistance against the clip 10b when a strong pulling force acts on the boss portion 2.

  12 and 13 show a fourth embodiment of a mounting structure for a mounting member 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 this embodiment, an engaging portion 30c having a gap 35 projects from the inside of one elastic locking piece 20 of the clip 10b. The engaging portion 30 c is notched between the base end of the other side piece 32 and the inside of the elastic locking piece 20, and the base end of the other side piece 32 is not connected to the inside of the elastic locking piece 20. The structure has a substantially J-shaped hook shape having a gap 35 on the inner side when viewed from a direction perpendicular to the direction of diameter reduction of the pair of elastic locking pieces 20 and 20. In addition, as an engaging part in which such a base end is not connected with the elastic locking piece 20, it may be a shape like a substantially V shape or a substantially U shape, and is not specifically limited.

  In this embodiment, since the base end of the side piece 32 of the engaging portion 30 is not connected to the elastic locking piece 20, the clip 10 c is inserted into the mounting hole 8 to be engaged, and a pair of elastic locking pieces When the side pieces 31 and 32 of the J-shaped hook-shaped engaging portion 30c elastically contact the inner peripheral ends 5a and 5b of both ends of the mounting hole 5 of the boss portion 2 with the diameters 20 and 20 reduced. Each side piece 31 and 32 becomes easy to bend, and the backlash prevention performance of the clip 10c with respect to the attachment hole 8 can be improved more.

  14 and 15 show a fifth embodiment of a mounting structure for a mounting member 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 this embodiment, an engagement portion 30d having a gap 35 projects from the inside of one elastic locking piece 20 of the clip 10d, and a plate without a gap from the inside of the other elastic locking piece 20 is provided. A projecting engagement protrusion 40 is provided.

  30 d of said engaging parts are a pair of side which protruded in the substantially C shape, when it sees from the direction orthogonal to the diameter reduction direction of a pair of elastic locking pieces 20 and 20 from the inner side of the elastic locking piece 20 It consists of pieces 31, 32, and has a structure having a gap 35 inside thereof, and is different in that the pair of side pieces 31, 32 are not connected by the connecting portion 33 as in the embodiment. In addition, as an engaging part, a pair of side piece 31 and 32 protrudes substantially parallel from the inner side of the elastic locking piece 20, or the protrusion direction front end side of an engaging part is wide, and it faces to a base end side. It may be constituted by a pair of side pieces 31 and 32 having an inverted C shape so as to be narrow, and is not particularly limited.

  Further, protrusions 31a and 32a protrude from the outer ends of the side pieces 31 and 32, respectively. These protrusions 31a and 32a are engaged with the attachment hole 8 by inserting the clip 10d, and the pair of elastic locking pieces 20 and 20 are reduced in diameter. 5a and 5b are elastically abutting portions (see FIG. 15)

DESCRIPTION OF SYMBOLS 1 Attachment member 2 Boss part 5 Attachment hole 7 To-be-attached member 8 Attachment hole 10,10a, 10b, 10c, 10d Clip 20 Elastic locking piece 22 Connection part 25 Engagement shoulder part 30,30a, 30b, 30c, 30d Engagement Part 35 gap 37 engaging claw 40 engaging protrusion 43 engaging claw

Claims (9)

An attachment structure for attaching an attachment member to a member to be attached via a clip,
The mounting member is provided with a boss portion in which a mounting hole for mounting the clip is formed, and the mounting member is formed with a mounting hole into which the clip is inserted and engaged,
The clip is provided on the outside of each of the elastic locking pieces, a pair of elastic locking pieces provided so as to sandwich the boss portion, a connecting portion that connects tips of the pair of elastic locking pieces, and An engagement shoulder that engages with the rear peripheral edge of the mounting hole, and an engagement portion that protrudes from the inside of at least one elastic locking piece and is inserted into the mounting hole of the boss portion;
The engaging portion is an inner portion of the mounting hole facing the axial direction of the boss portion in a state where the clip is inserted into and engaged with the mounting hole and a pair of elastic locking pieces is reduced in diameter. An attachment structure for an attachment member, wherein the attachment structure is configured to elastically contact the circumference.   The attachment structure for an attachment member according to claim 1, wherein both ends of the engagement portion are connected to the inside of the elastic locking piece and have a frame shape having a gap on the inside.   2. The attachment structure for an attachment member according to claim 1, wherein one end of the engagement portion is connected to the inside of the elastic locking piece and has a gap on the inside.   When the pair of elastic locking pieces is viewed from a direction orthogonal to the diameter reducing direction, the engaging portion is formed to be wide from the protruding direction front end side to the base end side. The mounting structure of the mounting member according to any one of Items 1 to 3.   With the clip inserted into the mounting hole and engaged, and the pair of elastic locking pieces having a reduced diameter, the engaging portion is located on the inner periphery on the tip end side in the axial direction of the boss portion of the mounting hole. The elastically abutting portion is formed so as to be thicker than a portion of the mounting hole that elastically abuts on the inner circumference on the proximal end side in the axial direction of the boss portion. The attachment structure of the attachment member as described in any one.   The mounting structure for a mounting member according to claim 2, wherein the engaging portions project from the inside of the pair of elastic locking pieces, and at least one of the engaging portions forms the frame shape. .   The engaging portion that elastically contacts the mounting hole protrudes from the inside of one elastic locking piece, and the plate-like engaging protrusion without a gap from the inside of the other elastic locking piece. The attachment structure for an attachment member according to any one of claims 1 to 5, wherein the portion protrudes.   The pair of engaging portions protrude so as to pass each other when the pair of elastic locking pieces reduce the diameter, and engage the engaging portions when the pair of engaging portions pass each other. The attachment structure of the attachment member according to claim 6, wherein the engaging claws are formed on the opposing surfaces.   The engaging portion and the engaging protrusion protrude so as to pass each other when the pair of elastic locking pieces reduce the diameter, and when the engaging portion and the engaging protrusion pass, The attachment structure of the attachment member according to claim 7, wherein an engagement claw that engages the engagement portion and the engagement protrusion is formed on an opposing surface thereof.