JPH0882312A - Connecting clip - Google Patents

Abstract

PURPOSE: To prevent a male member from falling easily even in the case of foreign matter such as a flying stone coming flying to hit a connecting clip. CONSTITUTION: A connecting clip is constituted of a cylinder part having plural elastic pieces 5 cut and split by radial slits 4, a female member provided with a flange part 8 projecting radially outward from the periphery of the base end of the cylinder member, a shank part inserted into the inner periphery of the female member so as to open the elastic pieces 5, and a male member 21 provided with a collar 23 projecting radially outward from the periphery of the base end of the shank part. A wall part 6 is erected at the flange part 8. The inside measurement of the wall part 6 is set to be larger than the outer diameter dimension of the collar 23, and a cutout part 7 is formed at the wall part 6 so that the outer peripheral edge of the collar 23 is enclosed inside the wall part 6 in the connected state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate-to-plate member, for example, a synthetic resin connecting clip which can be joined to a bumper and a bumper beam in an automobile without using bolts and nuts. .

[0002]

2. Description of the Related Art In recent years, in order to easily disassemble a fixed member in a short time, for example, to shorten the disassembling time at the time of disassembling and repairing, or to shorten the dismantling time of a scrapped vehicle. Development of a quick-release type connecting clip is being actively pursued to achieve this. As this type of connecting clip, for example, the applicant of the present application has already applied (Practical application 4-
85459). This bond clip
A cylindrical member having an elastic piece cut into a plurality of pieces by radial slits, a female member provided with a flange projecting outward in the radial direction from around the base end of the cylindrical member, and inserted into the inner circumference of the female member. By expanding the elastic piece by this, consisting of a fixed member and a male member for connecting the coupling member, to form a radially inward projection on the inner periphery of the length of each elastic piece of the female member, In the female member, a head portion at the tip of which the elastic piece can be expanded outward in the radial direction, a small diameter portion that is connected to the rear of the head portion and does not expand the elastic piece, and is connected to the rear portion of the small diameter portion. And a protrusion formed on the elastic piece, thereby forming a large-diameter portion for holding each elastic piece in a state of expanding outward in the radial direction, and dividing the elastic piece of the female member into the small-diameter portion. A rib that can be inserted into the slit is formed, and the head part has a radial direction formed on the elastic piece of the female member. It is obtained by forming a notch having a leading cam surface for guiding the orientation of the projections on one side of the rib of the smaller-diameter portion. When the fixing member and the fixed member are overlapped, the holes of both members are made to communicate, the coupling clip is inserted into this hole, and then the male member is pushed into the female member, the elastic piece of the female member becomes large. While being radially outwardly expanded by the diameter portion, the head portion and the small diameter portion of the male member project to the lower end from the elastic piece, and the bent portion of the outer periphery of the elastic piece is caught by the hole edge of the fixing member. Therefore, the fixing member and the fixed member can be connected by the connecting clip.

[0003]

However, in the above-mentioned connecting clip, the brim of the male member projects more than the brim of the female member in the connected state. Easy to hit. When foreign matter hits the male member, the male member may fall off due to the impact at this time, and the fixation between the fixed member and the fixing member may be released. Therefore, it is an object of the present invention to provide a coupling clip in which a male member does not easily drop even when a flying stone or the like comes in and hits it.

[0004]

In order to achieve the above object, the present invention is directed to a cylindrical portion having an elastic piece divided into a plurality of radial slits and a radial outward direction from around the base end of the cylindrical portion. A female member having a flange portion projecting to the inside, a shaft portion that expands the elastic piece by inserting it into the inner circumference of the female member, and a radially outwardly protruding portion around the base end of the shaft portion. In a coupling clip consisting of a male member with a collar,
The wall portion is provided upright on the flange portion, and the inner diameter of the wall portion is set to be larger than the outer diameter dimension of the collar so that the outer peripheral edge of the collar in the coupled state is accommodated inside the wall portion. Further, according to the above invention, when the shaft portion of the male member is inserted into the tubular portion of the female member and pushed in sufficiently, the elastic piece of the female member expands and the fixing member and the fixed member can be coupled. In this combined state, the flange of the male member is in contact with or close to the flange portion of the female member, so that the flange is housed inside the flange portion. Therefore, even if a foreign matter comes in, the foreign matter does not hit the edge of the brim. In the above structure, a notch may be formed in the wall, and in addition, the thickness of the flange having the notch is made thinner than the other part, and the flange from this thin part to the cylinder is The wall thickness may be gradually increased. Alternatively, in the above configuration, both or one of the upper surface of the flange portion and the lower surface of the flange is inclined with respect to an imaginary plane orthogonal to the axial direction, so that it is formed between the lower surface of the flange and the upper surface of the flange portion. The clearance may be gradually narrowed from the outer edge toward the center.

Further, the coupling clip according to the present invention comprises a tubular portion having an elastic piece divided into a plurality of radial slits, and a flange portion projecting radially outward from around the proximal end of the tubular portion. A male member provided with a female member, a shaft portion that expands the elastic piece by inserting the female member into an inner periphery of the female member, and a flange that projects radially outward from around a base end of the shaft portion. In the coupling clip consisting of, the engaging portion is formed on the inner periphery of the elastic piece of the female member, and the outer periphery of the shaft portion of the male member is
An inclined surface that guides the locking portion when inserting the male member into the inner periphery of the female member, and the locking portion that is provided closer to the base end than the inclined surface when the male member and the female member are coupled In addition to forming an engaging recess for receiving, the upper surface of the flange portion of the female member is provided with a protecting portion for protecting the outer circumference and the lower surface of the flange of the male member at the time of the coupling, and the male member has an inner circumference of the female member. When the engaging portion is inserted into the engaging recess and the engagement state is released, the distance for the lower surface of the collar to be pulled up from the upper end of the protective portion is greater than It is set longer than the distance to the inclined surface.

Further, the coupling clip according to the present invention comprises a tubular portion having an elastic piece divided into a plurality of radial slits, and a flange portion projecting radially outward from around the base end of the tubular portion. A male member provided with a female member, a shaft portion that expands the elastic piece by inserting the female member into an inner periphery of the female member, and a flange that projects radially outward from around a base end of the shaft portion. In the coupling clip consisting of, a protective portion is provided on the upper surface of the flange portion of the female member for protecting the outer circumference and the lower surface of the collar of the male member when the male member and the female member are coupled, and the inner side of the protective portion is protected by the guard. Is set to be larger than the outer dimension of the flange so that the outer peripheral edge of the flange in the coupled state is housed inside the protective portion, and both the upper surface of the flange portion and the lower surface of the flange, or one of them is orthogonal to the axial direction. By tilting with respect to the virtual plane The gap formed between the surface and the upper surface of the flange portion is gradually narrowed from the outer edge toward the center, and the protection portion is provided with means for exposing the gap. .

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a female member made of synthetic resin, and a plurality of expandable elastic pieces 5 divided by a slit 4 are extended from a flange portion 2 at a base end projecting outward in the radial direction through a tubular portion 3. Has been done. And
At the outer peripheral edge of the outer surface of the flange portion 2 (the surface located on the side opposite to the tubular portion 3), a wall portion 6 as a protective portion that protects a part or all of the outer periphery of the collar of the male member described below and the lower surface. And a notch portion having an appropriate width as a means for exposing a gap formed between the flange portion 2 and the flange of the male member at a position where the wall portion 6 faces each other, as will be described later. 7 is formed. The wall portion 6 is integrally formed with the flange portion 2, and the inner dimension (inner diameter) thereof is slightly larger than the outer diameter dimension of the collar of the male member described later. Further, the wall thickness of the flange portion 2 in which the cutout portion 7 is formed is set to be thinner than the other portions, and the wall thickness from the thin wall portion to the tube portion 3 is gradually increased toward the center. An inclined guide surface 8 is formed which gradually increases from the notch 7 toward the center.

[0008] The tip of each elastic piece 5 is narrowed, so that the inner diameter of the tip is smaller than the middle of the length of the tubular portion 3 and the elastic piece 5. Further, radially inward projections 9 are formed as locking portions that engage with engagement recesses of a male member, which will be described later, at substantially intermediate portions of the length of the inner peripheral surface of each elastic piece 5. There is.

Reference numeral 21 is a male member having a shaft portion 22 which is made of synthetic resin and has an outer diameter slightly smaller than the inner diameter of the cylindrical portion 3 of the female member 1 as a whole. A flange 23 protruding outward in the radial direction in order from the end, a large diameter portion 25 having a plurality of grooves 24 arranged at equal intervals in the circumferential direction on the outer periphery, a small diameter portion 26 thinner than the large diameter portion 25, A head portion 27 having an outer diameter dimension substantially equal to that of the large diameter portion 25 is formed in series and integrally.

The brim 23 is a substantially goro-shaped member having a thick central portion and a thinner thickness toward the outside, and has a diameter slightly smaller than the inner dimension of the wall 6 of the female member 1. ing. Therefore, the upper surface of the collar 23 is a gently curved surface, and the lower surface is formed into an inclined curved surface that gradually approaches the large diameter portion 25 side as it approaches the center.

The large-diameter portion 25 is provided with a plurality of engaging recesses 28, which are engaged with the projections 9 formed on the inner surface of the elastic piece 5 of the female member 1, at predetermined intervals in the circumferential direction, and also have a small diameter. Part 26
A predetermined inclined surface 29 is formed at a boundary portion between and.
On the other hand, a pair of ribs 30 facing each other are provided on the outer circumference of the small diameter portion 26.
Are formed in series in the length direction. Further, the tip of the head portion 27 is formed in a conical shape so as to easily pass through the tip of the elastic piece 5, and the inner surface of the elastic piece 5 of the female member 1 is inserted into the head portion 27 at the time of insertion thereof. A pair of notches 32 having a leading cam surface 31 for forcibly guiding the radially inwardly-projecting projection 9 formed on the one side to one side of the rib 30 of the small diameter portion 26 are formed in a facing manner.

When the head portion 27 passes through the portion of the protrusion 9 of the elastic piece 5, the protrusion 9 of the elastic piece 5 is guided by the leading cam surface 31 of the notch 32, and is circumferentially directed toward one side of the rib 30. Trying to shift slightly in the direction. That is, one or both of the male member 21 and the female member 1 rotate slightly to try to position the protrusion 9 on one side of the rib 30 and, as a result, the rib 30 concerned.
Are housed in slits 4 formed by adjacent elastic pieces 5.

Next, the case where the joining clip of the present invention is put into a temporary assembled state based on the above-mentioned structure will be described. First, when the male member 21 is inserted into the cylindrical portion 3 of the female member 1 from the side of the head 27, the head 27 projects from the projection 9 as described above.
The elastic piece 5 enters while expanding outward in the radial direction via. At that time, the elastic piece 5 is attached to the leading cam surface 31 of the notch 32.
The protrusion 9 of the male member 21 is guided toward one side of the rib 30, so that the male member 21 slightly rotates and the small diameter portion 26
The ribs 30 are guided in the slits 4. That is, not only when the male member 21 enters with the rib 30 and the slit 4 aligned from the beginning, but of course, the rib 3
Even if the male member 21 enters in the state where 0 is located on the inner surface of the elastic piece 5, the rib 30 is always guided and housed in the slit 4, so that the rib 30 abuts on the inner surface of the elastic piece 5, There is no case in which the male member 21 continues to enter with 5 unfolded and a temporary assembled state is reached.

After that, when the head 27 of the male member 21 finally passes the tip of the elastic piece 5, the elastic piece 5 is contracted to its original state (small diameter state) by the elastic force. In this state, the projection 9 formed on the inner surface of the elastic piece 5 is located on the inclined surface 29 of the small diameter portion 26 and the large diameter portion 25, and the tip of the elastic piece 5 engages with the rear end surface of the head 27. . That is, the male member 21
And the female member 1 becomes difficult to move relative to each other.
Therefore, when the insertion force is released at this position, the male member 21 is temporarily inserted into the female member 1 (temporary assembled state) as shown in FIG. To be done.

Next, a method of connecting the fixed member B to the fixing member A shown in FIG. 3 will be described. Male member 2 of FIG.
1 is inserted into the insertion hole 42 of the fixed member B from the insertion hole 41 of the fixed member B so that the elastic piece 5 of the female member 1 is fixed to the fixing member A. Insert until it projects from the insertion hole 42.

Next, when the male member 21 is pushed into the female member 1 until the collar 23 comes into contact with the flange portion 2,
The elastic piece 5 of the female member 1 is gradually and uniformly expanded outward in the radial direction again by the inclined surface 29 of the large-diameter portion 25, and the head 27 and the small-diameter portion 26 of the male member 21 are elastically deformed. It protrudes to the lower edge.

Then, when the flange 23 is depressed in the inner periphery of the wall portion 6 and the protrusion 9 is finally pushed in after passing the inclined surface 29, the protrusion 9 formed on the back surface of the elastic piece 5 has a large diameter portion. Two
5, the male member 21 and the female member 1 are coupled and fixed to each other by being received and locked by the engaging concave portion 28 formed on the outer periphery of 5. That is, the male member 21 and the female member 1 are fixed with the elastic piece 5 of the female member 1 being expanded outward in the radial direction, and the bent portion of the outer periphery of the elastic piece 5 at this time is fixed to the fixing member A. It is locked by being caught on the edge of the hole 42. Therefore, the fixed member B can be coupled to the fixed member A. Further, in the fixed state, the distance for the lower surface of the collar to be pulled up higher than the upper end of the wall portion is set to be longer than the distance from the engaging concave portion to the inclined surface, therefore,
The collar is located on the inner circumference of the wall and does not project.

When the fixing member A and the fixed member B are connected by the connecting clip in this manner, the lower surface and the outer peripheral edge of the collar 23 are housed in the wall portion 6 of the flange portion 2 and the upper surface and the wall portion 6 of the collar 23. The upper edge is located on the same curved surface. In this state, if a foreign substance such as a flying stone flies toward the coupling clip, the foreign substance only hits the wall portion 6 of the female member 1 or the upper surface of the collar 23 of the male member 21, It does not hit the outer peripheral edge or the lower surface of 23. Even if foreign matter hits the wall portion 6, it does not affect the combined state, and even if it hits the upper surface of the collar 23, there is an impact force in the direction of pushing in the male member 21 and no pulling force acts. Therefore, even if a foreign matter hits, there is no risk that the coupling clip in the coupled state will come off. In short, the wall portion 6 protects the foreign matter from coming into contact with the outer peripheral edge and the lower surface of the collar 23, and the connecting clip cannot be removed.

The wall portion 6 functions not only as a protective portion for protecting foreign matters from hitting the edge of the collar 23, but also as a reinforcing member for increasing the strength of the flange portion 2. When the strength of the portion 2 is increased, it is less likely to be damaged even if a foreign matter hits it, and the safety can be further improved.

Next, the fixing member A joined by the joining clip.
An operation for disassembling the fixed member B will be described. When the male member 21 is sufficiently pushed into the female member 1, as shown in FIG. 3, the center of the lower surface of the collar 23 is in contact with the portion of the flange 2 closer to the cylindrical portion 3, and A gap 5 is formed between the lower surface of 23 and the upper surface of the flange portion 2.
1 is formed, and this gap 51 becomes gradually narrower as it approaches the center from the outer edge, and is particularly remarkable between the inclined guide surface 8 of the flange portion 2 and the lower surface of the collar 23.

Therefore, the notch 7 where the gap 51 is exposed
When a flat-blade screwdriver or the like is inserted from above and the tip is advanced along the inclined guide surface 8, the lower surface of the flange 23 and the upper surface of the flange portion 2 are inclined and face each other, so that the pushing force of the driver is several by the wedge action. The collar 23 is lifted up by being doubled. Therefore, the projection 9 of the elastic piece 5 of the female member 1 is disengaged from the engaging recess 28 of the male member 21 to release the coupling, and then the lower surface of the collar 23 is pulled up higher than the upper end of the wall portion 6.
It should be noted that, by moving a flat-blade screwdriver inserted from the notch 7 of the flange portion 2 like a lever and raising the tip toward the collar 23 side, the collar 23 can be more easily lifted.

When the male member 21 is pulled out a little from the female member 1 in this manner, the elastic piece 5 which has been expanded in diameter up to that point is contracted by elastic force, and the outer periphery of the elastic piece 5 is a hole of the fixing member A. It returns from the edge of 42 to the state shown in FIG. Therefore, in this state, when the brim 23 is picked up with a finger and pulled out, the entire coupling clip has the holes 41 of the fixing member A and the fixed member B,
The fixed member A and the fixed member B can be disassembled into pieces by slipping out from 42.

In this embodiment, since the cutouts 7 are formed at the opposite positions of the flange portion 2, both cutouts 7 are formed.
If a flat-blade screwdriver is simultaneously inserted into, the male member 21 can be released more easily without tilting.

In order to form the above-mentioned gap 51 between the lower surface of the flange 23 and the upper surface of the flange portion 2, not only the inclined guide surface 8 is formed only in the inner portion of the cutout portion 7, but also the wall. An inclined surface may be formed on the entire upper surface of the flange portion 2 surrounded by the portion 6 by changing the thickness or the like. In short, both the upper surface of the flange portion 2 and the lower surface of the flange 23, or one of them is inclined with respect to an imaginary plane orthogonal to the axial direction, so that it is formed between the lower surface of the flange 23 and the upper surface of the flange portion 2. The gap 51 may be configured to gradually narrow as it approaches the center from the outer edge.

Although the head portion 27 is provided at the tip of the shaft portion 22 of the male member 21 in the above-described embodiment, the connecting clip according to the present invention is not limited to this. That is, a female member 1 having a tubular portion 3 having an elastic piece 5 divided into a plurality of radial slits 4 and a flange portion 2 projecting radially outward from around the base end of the tubular portion 3. , The female member 1
A male member 21 having a shaft portion 22 that expands the elastic piece 5 by inserting the elastic piece 5 into the inner periphery of the shaft portion, and a male member 21 having a collar 23 that projects radially outward from around the base end of the shaft portion 22. Any combination of clips may be used as long as it is a clip.

Since the notches 7 formed in the wall portion 6 of the flange portion 2 are gaps for inserting a tool such as a flat-blade screwdriver between the lower surface of the flange 23 and the upper surface of the flange portion 2, the number thereof is The length, position, etc. are not limited to the above-mentioned form.

[0027]

As described above, according to the first aspect of the invention, in the coupled state, the flange of the male member is housed inside the wall portion provided upright on the flange portion of the female member. Even if foreign matter comes in, it does not hit the outer peripheral edge or the lower surface of the collar. Therefore, the connection is not released, and the safety can be ensured even when it is used as a connection part for an automobile. Further, as described in claim 2, when the notch is formed in the wall, a tool such as a flat-blade screwdriver is inserted from here to move the male member in the axial direction with respect to the female member, which is simple and easy. It is possible to release the connection, and the connection clip according to the third and fourth aspects further facilitates the release operation. Therefore, by using the connecting clip having the above-mentioned structure, not only the reliable connecting state can be obtained as in the case of the first aspect, but also the disassembling work of the fixed member and the fixed member, which have been connected, can be simplified in a short time. It can be carried out.

According to the fifth aspect of the present invention, the connecting clip is provided with a protective portion on the flange portion of the female member for protecting the outer periphery and the lower surface of the collar of the male member, and the lower surface of the collar is the upper end of the protective portion. Since the locking portion is set to have a distance longer than the distance from the engaging concave portion to the inclined surface, the lower surface of the collar portion does not protrude from the protective portion in the coupled state, and the foreign matter It is possible to reliably maintain the combined state even if, for example, fly over. Furthermore, according to the connecting clip of the sixth aspect, a tool such as a flat-blade screwdriver can be surely inserted, so that the releasing operation can be performed more easily.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a coupling clip.

FIG. 2 is a sectional view of a provisionally assembled state in which a male member is inserted halfway into a female member.

FIG. 3 is a cross-sectional view showing a state where the male member is completely inserted into the female member.

FIG. 4 is a plan view of a female member.

FIG. 5 is a side view of a female member whose left half is a cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Female member 2 Flange part 3 Cylindrical part 4 Slit 5 Elastic piece 6 Wall part 7 Notch part 8 Inclined guide surface 9 Protrusion 21 Male member 22 Shaft part 23 Tsuba 25 Large diameter part 26 Small diameter part 28 Recessed part 41 Fixed member insertion hole 42 Insertion hole for fixing member 51 Gap

Claims (6)

[Claims] 1. A female member having a tubular portion having an elastic piece divided into a plurality of radial slits, and a flange portion projecting radially outward from around the base end of the tubular portion; A coupling clip comprising a shaft portion that expands the elastic piece by inserting the elastic piece into the inner periphery of the member, and a male member having a flange that projects outward in the radial direction from around the base end of the shaft portion. A connection is characterized in that a wall portion is erected on the wall portion, and the inner diameter of the wall portion is set to be larger than the outer diameter dimension of the collar so that the outer peripheral edge of the collar in the coupled state fits inside the wall portion. clip. 2. The connecting clip according to claim 1, wherein a notch is formed in the wall portion. 3. The wall thickness of the flange portion having the cutout portion is made thinner than the other portions, and the wall thickness of the flange portion from the thin portion to the cylinder portion is gradually increased. Bonding clip as described. 4. An upper surface of the flange portion and a lower surface of the flange portion, or one of them is inclined with respect to an imaginary plane orthogonal to the axial direction, so as to be formed between the lower surface of the flange portion and the upper surface of the flange portion. The coupling clip according to claim 1, wherein the gap is gradually narrowed from the outer edge toward the center. 5. A female member having a tubular portion having an elastic piece divided into a plurality of radial slits, and a flange portion protruding outward in the radial direction from around the base end of the tubular portion, and the female member. A coupling clip comprising a shaft portion that expands the elastic piece by inserting the elastic piece into the inner periphery of the member, and a male member that includes a flange that projects outward in the radial direction from around the base end of the shaft portion, A locking portion is formed on the inner circumference of the elastic piece of the female member, and an inclined surface for guiding the locking portion when the male member is inserted into the inner circumference of the female member is formed on the outer circumference of the shaft portion of the male member, and An engaging recess is provided closer to the base end than the inclined surface and receives the locking portion when the male member and the female member are coupled to each other, and the upper surface of the flange portion of the female member is provided at the time of the coupling. Protective parts are provided to protect the outer and lower surfaces of the collar of the male member, and the male member is the inner periphery of the female member. When the engaging portion is inserted and the engagement state where the engaging portion and the engaging concave portion are engaged is released, the engaging portion is inclined from the engaging concave portion by a distance for the lower surface of the collar to be pulled up higher than the upper end of the protective portion. A connecting clip characterized by being set longer than the distance to the surface. 6. A female member having a tubular portion having an elastic piece divided into a plurality of radial slits, and a flange portion protruding outward in the radial direction from around the base end of the tubular portion, and the female member. A coupling clip comprising a shaft portion that expands the elastic piece by inserting the elastic piece into the inner periphery of the member, and a male member that includes a flange that projects outward in the radial direction from around the base end of the shaft portion, Provided on the upper surface of the flange portion of the female member is a protective portion capable of protecting the outer periphery and the lower surface of the collar of the male member when the male member and the female member are coupled, and the inner diameter of the protective portion is set to be larger than the outer dimension of the collar. So that the outer peripheral edge of the collar in the combined state is housed inside the protective portion, and both the upper surface of the flange portion and the lower surface of the collar, or any one of them is inclined with respect to an imaginary plane orthogonal to the axial direction. Between the lower surface of the collar and the upper surface of the flange. The coupling clip characterized in that the gap formed is gradually narrowed as it approaches the center from the outer edge, and means for exposing the gap is formed in the protective portion.