JP4950674B2 - clip - Google Patents

Description

  The present invention relates to a clip that is inserted into a locking hole formed in a member to be mounted such as various panels constituting a vehicle body of an automobile and locked.

2. Description of the Related Art Conventionally, various clips have been proposed that are inserted and locked in locking holes formed in attached members such as various panels constituting a vehicle body.
For example, a base part is raised from a mounting seat for coupling to a harness by integral molding with a resin, and a pair of locking arms provided to protrude on both the left and right sides of the rising tip of the base part are elastically deformed. The clip is used to fix the harness to the vehicle body panel by fitting the locking arms to the mounting holes of the vehicle body panel using elastic snaps. There is a clip in which a solid coating lubrication layer is formed on a fitting surface outside a locking arm that fits into a mounting hole (see, for example, Patent Document 1).

JP 2001-245427 A (paragraphs (0014) to (0020), FIGS. 1 to 2)

  However, the clip described in Patent Document 1 has a pair of locking arms that pass through the mounting holes of the vehicle body panel and are locked to the mounting holes, but has a large tensile force (for example, 200N to 500N). .) Is applied, a bending moment that opens outwardly acts on the root portion of the locking arm, so that there is a problem in that the bending stress of the root portion increases and breaks and deforms.

  Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide a clip that can withstand a large tensile force.

In order to achieve the above object, the clip according to claim 1 is engaged with the attached member by inserting the inner member into the outer member after the outer member is inserted into the engagement hole formed in the attached member. In the clip, the inner member is extended toward the base portion from the left and right sides of the base portion, the insertion head protruding from the base portion, and the distal end portion of the insertion head, A pair of elastic locking claws that are formed with locking projections projecting to a predetermined height in the outer direction and can be elastically deformed in directions close to each other, and directions orthogonal to the left and right sides of the tip of the insertion head A pair of retaining portions protruding outward in the orthogonal direction from both ends of the outer member, and the outer member has an insertion portion through which the insertion head is inserted, and the base portion from above. The flat plate part to be abutted and in front of the insertion part From both side edges facing each elastic locking claw, it is erected upward with a width narrower than the width between the locking projections of each elastic locking claw, and both upper end edges are connected by a ceiling part, A position facing the lower side by a predetermined height from the front-end portion of the insertion head inserted into the insertion portion of the both sides of the cover portion and a U-shaped cover portion that covers the insertion head that has been inserted. A pair of notch portions that are cut out from the base end portions of the both side surface portions so that the locking projections of the elastic locking claws protrude outward, and the retaining portions of the insertion portion Projecting portions that protrude from both side edges facing each other at a height lower than the respective retaining portions, and project from the respective distal end portions to the inner side of the side surface portion of the insertion head in the insertion portion side direction. A pair of locking pieces that can be elastically deformed in the outward direction, and the outer member in the locking hole After insertion, by inserting the fitting head portion into the insertion portion of the outer member, the case where the base portion in contact with the said plate with the respective retaining portion is inserted to the upper side of the respective locking pieces The upper edge of the pair of cutouts abuts at a position below a predetermined height from the tip of the fitting head on each outer side surface of the pair of elastic locking claws away from each other , and A pair of elastic locking claws are elastically locked in the locking holes, and the protrusions abut on the side surfaces below the retaining portion of the fitting head so that the locking The piece is elastically deformed outwardly of the locking hole and is elastically locked to the locking hole .

In the clip according to claim 1 having the above-described configuration, after inserting the outer member into the locking hole formed in the attached member, the insertion head is inserted into the insertion portion of the outer member, and the base portion is the outer portion. When abutting against the flat plate portion of the member, the upper edge portions of the pair of notches drilled in both side surfaces connected by the ceiling portion of the cover portion of the outer member are left and right of the tip portion of the fitting head. with contact at a position of a predetermined height lower on each outer surface in a direction away from each other of the pair of elastic locking claws which extends toward the base portion from both sides from the distal end of the fitting head portion, the pair of elastic the locking claw is Ru are elastically locked to the locking hole. In addition, the insertion head is inserted into the insertion portion of the outer member, and each retaining portion protruding outward in the orthogonal direction from both ends in the direction orthogonal to the left and right sides of the tip of the insertion head When inserted up to the upper side of the stopper piece, each protruding portion protruding from the tip of each locking piece comes into contact with each side surface portion below the retaining portion of the fitting head, The locking piece is elastically deformed toward the outer side of the locking hole and is elastically locked to the locking hole.

This ensures, in a state where the locking projection is engaged in the locking hole of the attachment member of the pair of elastic latching pawls, when a large tensile force in a direction to pull the inner member from the outer member is load, Since the upper edge of the pair of notches formed in both side surface portions of the cover portion of the outer member abuts at a position below a predetermined height from the tip of the insertion head of each elastic locking claw, each elasticity The fulcrum of the bending moment in the outward direction of the locking claw is a position where the upper edge of each notch comes into contact, and the distance from each locking projection to the fulcrum of the bending moment is shortened. For this reason, the bending moment which generate | occur | produces in each elastic latching claw by tensile force becomes small, and it becomes possible to endure big tensile force. In addition, after inserting the outer member into the locking hole of the mounted member, the insertion head is inserted into the insertion portion of the outer member, and the base portion is brought into contact with the flat plate portion of the outer member, so that While being able to lock the elastic locking claw, the protruding portion of each locking piece of the outer member comes into contact with each side surface below the retaining portion of the fitting head, and each locking piece is Since it is elastically deformed in the outward direction of the locking hole and locked to the locking hole , the clip can be easily attached to the locking hole of the mounted member.

Further, the locking projections of the pair of elastic locking claws of the inner member are locked in the locking holes of the attached member, and each locking piece of the outer member is elastically deformed in the outward direction of the locking hole. When a large tensile force is applied in a direction in which the inner member is pulled out of the outer member while being locked in the locking hole, each locking piece of the outer member is elastically deformed in the outer direction of the locking hole. and is engaged with the locking hole Tei because each retaining portion projecting from the side surface portion of the fitting head, in contact with the upper side front end portion of the projecting portion of the respective locking pieces, a larger It is possible to withstand a tensile force. In addition, since both side portions of the cover portion of the outer member are connected by the ceiling portion, both side portions of the cover portion are elastically deformed outward even when a large tensile force is applied in a direction in which the inner member is removed from the outer member. Thus, the state in which the locking projections of the pair of elastic locking claws are locked in the locking holes of the attached member can be maintained, and it is possible to withstand a larger tensile force.

Hereinafter, a clip according to the present invention will be described in detail with reference to the drawings based on an embodiment embodying the present invention. First, the overall structure of the clip according to the present embodiment will be described with reference to FIG. FIG. 1 is an exploded perspective view schematically showing an inner member 2 and an outer member 3 constituting a clip 1 according to the present embodiment. In FIG. 1, the clip 1 is formed of a resin such as nylon or polypropylene.
As shown in FIG. 1, the clip 1 basically includes an inner member 2 and an outer member 3.

Here, first, the configuration of the inner member 2 will be described with reference to FIGS. 1 to 5.
FIG. 2 is a perspective view of the inner member 2. FIG. 3 is a plan view of the inner member 2. 4 is a cross-sectional view taken along line AA in FIG. 5 is a cross-sectional view taken along line BB in FIG.
As shown in FIGS. 1 to 5, the inner member 2 includes a base portion 5 having a substantially square shape in cross section and a substantially square shape in plan view coupled to a component mounting portion (not shown) to which a component such as a harness is mounted. . A through hole 6 having a rectangular shape in plan view is formed in the base portion 5 at the center position of the upper surface portion. An insertion head 7 having a substantially U-shaped side cross section having a width of about 1/3 of the long side portion is formed at the center position of each of the opposing long side portions of the through hole 6. It is erected across six. Moreover, each wall part 7A is formed in about the upper half of each side part of the insertion head part 7, and each leg part 7B standingly opposed is connected. In addition, each leg portion 7B has a predetermined length (in the present embodiment, a length of about 1 mm to 2 mm) extending outward in a direction perpendicular to the longitudinal direction of the through-hole 6 at the upper tip portion of each leg portion 7B. A retaining portion 8 is provided. Further, an inclined surface 9 that is inclined obliquely downward is formed on the outer periphery of the upper end of the insertion head 7.

  Further, on both the left and right sides of the distal end portion of the insertion head 7, a direction extending from the portion facing the through hole 6 toward the base portion 5, and the distal end portion being inserted into the through hole 6 and approaching each other. A pair of elastic locking claws 11 that can be elastically deformed are provided. In addition, each elastic locking claw 11 is formed in a substantially vertically long rectangle when viewed from the front, and at a substantially central portion in the vertical direction, a side cross-section that is locked in a locking hole 42 of the attached member 41 as described later. Triangular locking projections 12 are projected in a predetermined height outward (see FIG. 13).

Next, a schematic configuration of the outer member 3 will be described with reference to FIGS. 1 and 6 to 9.
FIG. 6 is a perspective view of the outer member 3. FIG. 7 is a plan view of the outer member 3. 8 is a cross-sectional view taken along the line CC of FIG. 9 is a cross-sectional view taken along the arrow D-D in FIG.
As shown in FIGS. 1 and 6 to 9, the outer member 3 has a flat plate portion 22 in which an insertion portion 21 having a substantially rectangular shape in plan view is formed at the center position. As will be described later, the insertion head 7 of the inner member 2 is inserted from below (see FIGS. 13 and 14). Further, on the upper surface portion of the flat plate portion 22, from each long side portion of the insertion portion 21, a height that is slightly higher than the insertion head 7 that is inserted into the insertion portion 21 (about 0.5 mm to 2 mm higher height). And a cover portion 23 having a generally rectangular shape in a plan view and a U-shape in a side view is provided. In addition, an inclined surface 24 that is inclined obliquely downward is formed on the outer periphery of the upper end of the cover portion 23.

  On both side surfaces of the cover portion 23, the elasticity is located at the center in the width direction facing the elastic locking claws 11 extending from the front end of the insertion head 7 inserted into the insertion portion 21 to the left and right sides. A pair of cutout portions 25 are formed with a width dimension slightly larger than the width dimension of the locking claw 11 and notched in the upward direction from the base end portion, and notched in the right angle outward direction from the base end portion. Thereby, the latching protrusion 12 of each elastic latching claw 11 inserted in the insertion part 21 protrudes outside. Further, as shown in FIG. 9, a contact surface 26 that is inclined obliquely downward and outward is formed on the upper inner surface of each notch 25, and each elastic member inserted into the insertion portion 21 as will be described later. It acts as a contact portion that contacts the upper outer surface from the upper end portion of the locking projection 12 of the locking claw 11 (see FIG. 13).

  In addition, a pair of locking pieces 28 that can be elastically deformed in the outward direction are provided at the center position of each short side portion of the insertion portion 21, and each retaining portion 8 of the insertion head 7 that is inserted into the insertion portion 21. Standing at a lower height. Further, as shown in FIG. 8, the front end portion of each locking piece 28 protrudes in the direction of the insertion portion 21, and from each leg portion 7 </ b> B of the insertion head 7 inserted into the insertion portion 21. Each protrusion 29 is also formed to protrude inward. Further, the lower end surface of each projecting portion 29 is inclined obliquely downward and outward, and is in contact with the upper end surface of each retaining portion 8 formed at the distal end portion of the insertion head 7 that is inserted into the insertion portion 21. A sliding surface that slides in contact is formed.

Next, a method of attaching the clip 1 configured as described above to the attached member 41 that is a metal plate (body) constituting the vehicle body of the automobile will be described with reference to FIGS.
FIG. 10 is a perspective view for explaining a method of attaching the clip 1 to the attached member 41. FIG. 11 is a perspective view showing a state in which the clip 1 is attached to the attached member 41. FIG. 12 is a plan view showing a state in which the clip 1 is attached to the attached member 41. FIG. 13 is a cross-sectional view taken along the line EE in FIG. 14 is a cross-sectional view taken along the line FF in FIG.

  As shown in FIG. 10, a locking hole 42 having a rectangular shape in plan view that is substantially the same as the outer peripheral shape in plan view of the cover portion 23 of the outer member 3 is formed in the attached member 41. First, the cover portion 23 of the outer member 3 is fitted into the locking hole 42 and pushed in the attached member 41 side direction (arrow P1 direction), and the upper surface portion of the flat plate portion 22 is brought into contact with the attached member 41. Subsequently, each retaining portion 8 formed at the tip of the fitting head 7 of the inner member 2 is opposed to each locking piece 28 of the outer member 3, and this fitting head 7 is inserted into the outer member 3. It is inserted through the portion 21 and pushed in the direction of the outer member 3 (arrow P2 direction). In this pushing operation, each retaining portion 8 formed at the tip of the insertion head 7 of the inner member 2 deflects each locking piece 28 of the outer member 3 outwardly, and each locking piece 28 This is performed until the upper surface portion of the base portion 5 of the inner member 2 comes into contact with the lower surface portion of the flat plate portion 22 of the outer member 3.

  As a result, as shown in FIGS. 11 to 14, the elastic locking claws 11 of the inner member 2 are brought into contact with the long side portions of the locking holes 42 and elastically deformed in the inner direction. The protrusion 12 is pushed into the locking hole 42. And by making the upper surface part of the base part 5 contact | abut to the lower surface part of the flat plate part 22 of the outer member 3, each elastic latching claw 11 is elastically deformed to an outer side again, and each latching protrusion 12 is formed. Each inclined surface that protrudes outward from each notch portion 25 of the outer member 3 and inclines obliquely inwardly and downwardly of each locking projection 12 elastically contacts each long side portion of the locking hole 42, so that the inner member 2 is locked in the locking hole 42. Further, the upper surface portion of each elastic locking claw 11 comes into contact with each contact surface 26 formed on the inner surface of the outer member 3.

  Further, the distal end portion of the protruding portion 29 of each locking piece 28 of the outer member 3 comes into contact with the lower leg portion 7B of each retaining portion 8 of the inner member 2, and each locking piece 28 is moved outwardly. The outer surface of each locking piece 28 comes into contact with each short side portion of the locking hole 42 and the outer member 3 is locked to the locking hole 42.

Therefore, in the clip 1 according to the present embodiment, first, the cover portion 23 of the outer member 3 is fitted into the locking hole 42 of the attached member 41 and is pushed in the direction of the attached member 41, and the upper surface of the flat plate portion 22. The part is brought into contact with the attached member 41. Subsequently, each retaining portion 8 formed at the tip of the fitting head 7 of the inner member 2 is opposed to each locking piece 28 of the outer member 3, and this fitting head 7 is inserted into the outer member 3. Inserted into the portion 21 and pushed in the direction of the outer member 3, the upper surface portion of the base portion 5 of the inner member 2 is brought into contact with the lower surface portion of the flat plate portion 22 of the outer member 3.
As a result, each locking piece 28 of the outer member 3 bends outward and comes into contact with each short side portion of the locking hole 42 so that the outer member 3 is locked to the locking hole 42 and the inner member Each inclined surface inclined obliquely downward and inwardly of each elastic locking claw 11 of the member 2 is brought into elastic contact with each long side portion of the locking hole 42 so that the inner member 2 is engaged with the locking hole. The clip 1 can be easily attached to the engaging hole 42 of the member 41 to be attached.

  On the other hand, in a state in which the clip 1 is attached to the engaging hole 42 of the attached member 41, the direction in which the clip 1 is pulled out from the engaging hole 42 with respect to the base portion 5 of the inner member 2 (the lower direction in FIGS. 13 and 14). ) When a pulling force is applied, each retaining portion 8 of the fitting head 7 comes into contact with the protruding portion 29 of each retaining piece 28 of the outer member 3, and each retaining piece 28 is retained in the retaining hole. Each sloping surface that is in contact with each short side portion of 42 and slanted inward and downward of the locking projection 12 of each elastic locking claw 11 is in contact with each long side portion of the locking hole 42. Become. Further, the lower outer surface from the front end portion of the insertion head 7 of each elastic locking claw 11 is on the upper inner surface of each notch portion 25 of the cover portion 23 of the outer member 3, that is, each contact surface 26. Abutted.

  Accordingly, the fulcrum of the bending moment in the outward direction acting on each elastic locking claw 11 of the inner member 2 by the tensile force acting on the base portion 5 is located at a position where the upper edge of each notch portion 25 abuts. Thus, the distance from each locking projection 12 to the fulcrum of the bending moment is shortened. For this reason, the bending moment which generate | occur | produces in each elastic latching claw 11 by tensile force becomes small, and it becomes possible to endure big tensile force. At the same time, each locking piece 28 of the outer member 3 is elastically deformed in the outward direction of each short side portion of the locking hole 42 and locked to the locking hole 42. The stop portion 8 comes into contact with the tip end portion of the protruding portion 29 of each locking piece 28 and can withstand a greater tensile force.

  In addition, this invention is not limited to the said Example, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention.

It is a disassembled perspective view which shows typically the inner member and outer member which comprise the clip concerning a present Example. It is a perspective view of an inner member. It is a top view of an inner member. It is AA arrow sectional drawing of FIG. It is a BB arrow sectional view of Drawing 3. It is a perspective view of an outer member. It is a top view of an outer member. It is CC sectional view taken on the line of FIG. It is DD sectional view taken on the line of FIG. It is a perspective view explaining the method of attaching a clip to a to-be-attached member. It is a perspective view which shows the state which attached the clip to the to-be-attached member. It is a top view which shows the state which attached the clip to the to-be-attached member. It is EE arrow sectional drawing of FIG. It is FF arrow sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Clip 2 Inner member 3 Outer member 5 Base part 7 Insertion head part 8 Stop part 11 Elastic locking claw 12 Locking protrusion 21 Insertion part 22 Flat plate part 23 Cover part 25 Notch part 26 Contact surface 28 Locking piece 29 Protruding part 41 Mounted member 42 Locking hole

Claims (1)

In the clip that is locked to the mounted member by inserting the inner member into the outer member after inserting the outer member into the locking hole that is drilled in the mounted member,
The inner member is
A base,
A fitting head protruding from the base,
Locking projections extending from the left and right sides of the distal end of the fitting head toward the base and projecting to a predetermined height in the outer direction are formed and can be elastically deformed in directions close to each other. A pair of elastic locking claws;
A pair of retaining portions projecting outward in the orthogonal direction from both ends in the direction orthogonal to the left and right sides of the tip of the insertion head;
With
The outer member is
A flat plate portion in which an insertion portion through which the insertion head is inserted is perforated and brought into contact with the base portion from above;
The insertion portion is erected upward from both side edges facing each elastic locking claw with a width narrower than the width between the locking projections of each elastic locking claw, and both upper edge portions are connected by a ceiling portion. , A U-shaped cover portion covering the insertion head inserted through the insertion portion;
Each elastic lock is cut out from a position facing the lower side of a predetermined height from the front end of the insertion head inserted into the insertion portion of the both side surface portions of the cover portion to the base end portion of the both side surface portions. A pair of notches formed so that the locking projections of the claws protrude outward,
From the both side edges of the insertion portion facing the retaining portions, the erected at a height lower than the retaining portions, and from the distal end portion toward the insertion portion side direction than the side portion of the insertion head. A pair of locking pieces that can be elastically deformed in the outer direction in which protrusions that project to the inside are formed;
With
After the outer member is inserted into the locking hole, the insertion head is inserted into the insertion portion of the outer member, the retaining portions are inserted to the upper side of the locking pieces, and the base portion Is in contact with the flat plate portion, the upper edge portions of the pair of notches are below a predetermined height from the distal end portions of the fitting heads on the outer surfaces of the pair of elastic locking claws in a direction away from each other. The pair of elastic locking claws are elastically locked in the locking holes, and the protrusions are on the side surfaces below the retaining portion of the fitting head. A clip, wherein each of the locking pieces abuts on the portion and is elastically deformed outwardly of the locking hole and elastically locked to the locking hole .

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