JP2006077827A - Clip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clip well insertable into a mounting hole of a panel. <P>SOLUTION: The clip comprises a head part 1 for holding a mounting component and a leg part 2 for engaging with the mounting hole of the panel. The leg part 2 consists of a supporting column 8 having a plurality of thin plates 7 extending in the radial direction and a cylindrical wall 9 for circularly connecting the outside edges of the thin plates 7 of the supporting column 8 to each other. The supporting column 8 has a front end 8a tapered-shaped, where the diameter of the circumscribed circle to each thin plate 7 is not larger than the inner diameter of the mounting hole. The cylindrical wall 9 has a radius smaller than the half of the inner diameter of the mounting hole, where a distance from the center of the supporting column to the peak of the outer periphery is larger than the half of the inner diameter of the mounting hole. Its lower edge 9a is curved toward the head part 1 between the thin plates 7. A small-diameter shoulder part 10 is formed at the upper end near the head part 1 for engaging with the hole edge of the mounting hole. Thus, the curved lower edge 9a of the cylindrical wall 9 is prevented from being hitched on the hole edge of the mounting hole to allow easy inserting work, accordingly. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a clip for fixing a mounting part such as an automobile trim board to a vehicle body panel.

  Although this type of conventional clip is not specifically illustrated, it is an integrally molded product of synthetic resin, and includes a head portion that holds a trim board and a leg portion that engages with a mounting hole of a vehicle body panel. The leg portion includes a strut having three thin plates extending radially, and a cylindrical wall that connects the outer edges of the thin plates of the strut in an arc shape, and has a vertically long projection on an intermediate outer surface of the connecting portion of the cylindrical wall. A strip is formed, a vertically long recess is formed on the intermediate inner surface, and the lower end edge of the cylindrical wall is set to the same height to form a straight line (see, for example, Patent Document 1).

When the trim board is actually fixed to the vehicle body panel, the trim board is held by the head of the clip, and the leg portion is drilled in the vehicle body panel in advance while using the tapered tip of the support as a guide. If it is inserted into the installed mounting hole, the cylindrical wall of the leg will bend inward by the action of the ridges and recesses and pass through the mounting hole, and after passing, it will return to its original shape and its shoulder As a result, the trim board is fixed to the vehicle body panel side.
Japanese Utility Model Publication No. 6-1817

  Therefore, under the conventional clip, it seems that the trim board can be easily fixed to the vehicle body panel at first glance, but on the other hand, as described above, the lower end edge of the cylindrical wall is all linear with the same height. Therefore, when the leg portion is inserted into the mounting hole of the vehicle body panel, the linear lower end edge of the cylindrical wall is caught by the hole edge of the mounting hole, and there is a risk that the insertion work becomes difficult by itself.

  In addition, when the cylindrical wall of the leg is bent toward the inside by being pushed by the edge of the mounting hole, a high stress is generated in the groove due to the concentrated bending at the groove on the inner surface, resulting in twisting or permanent damage. Since deformation easily occurs, the cylindrical wall cannot be completely restored to the original shape, and there is a possibility that the engaging force with respect to the mounting hole of the vehicle body panel may be reduced.

  The present invention was developed in order to effectively solve the problems of the conventional clip. The invention according to claim 1 is a leg that is attached to a head for holding a mounting part and a mounting hole of the panel. In the clip composed of a portion, the leg portion includes a support column having a plurality of thin plates extending radially, and a cylindrical wall that connects the outer edges of the thin plates of the support column in an arc shape. In addition to exhibiting a tapered shape, the diameter of the circumscribed circle in each thin plate is equal to or smaller than the inner diameter of the mounting hole, and the cylindrical wall has a radius smaller than the inner diameter 1/2 of the mounting hole, and extends from the center of the support column to the outer peripheral vertex. While making the distance larger than the inner diameter 1/2 of the mounting hole, the lower edge thereof is curved toward the head between the thin plates, and the hole edge of the mounting hole is engaged with the upper end near the head. A small diameter shoulder is formed.

  The invention described in claim 2 is based on the premise of claim 1 and is characterized in that the radius of the circumscribed circle in each thin plate is not less than 1/2 of the inner diameter of the mounting hole.

  According to a third aspect of the present invention, on the premise of the first aspect, the cylindrical wall is in line contact with the hole edge of the mounting hole with an arc whose radius is smaller than 1/2 of the inner diameter of the mounting hole.

  According to a fourth aspect of the present invention, there is provided a clip comprising a head portion for holding a mounting part and a leg portion that is engaged with a mounting hole of the panel, wherein the leg portion has a plurality of radially extending struts, A cylindrical wall that connects the outer edges of each thin plate in an arcuate shape, and the pillar has a tapered shape at the tip, while the outer edge of each thin plate where the cylindrical wall does not exist is inflated outward, and each thin plate The diameter of the circumscribed circle is less than or equal to the inner diameter of the mounting hole, and the cylindrical wall has a radius smaller than the inner diameter 1/2 of the mounting hole, and the distance from the center of the support column to the outer peripheral vertex is the inner diameter 1 of the mounting hole. The lower end edge is curved toward the head side between the thin plates, and a small-diameter shoulder for engaging the hole edge of the mounting hole is formed on the upper end side near the head. And the diameter of the cross section perpendicular to the axis is In the portion, which is curved toward the small head side than the diameter, characterized in that to match the inner diameter of the mounting hole.

  Therefore, according to the configuration of the present invention, when the lower end edge of the cylindrical wall is curved toward the head side between the thin plates of the support column, when inserting the leg portion of the clip into the mounting hole of the vehicle body panel, Since the curved lower end edge of the cylindrical wall is not caught by the hole edge of the mounting hole, the insertion work is facilitated accordingly. In addition to this, the dimension setting for the cylindrical wall eliminates the need for forming a conventional ridge or recess on the cylindrical wall, so that the cylindrical wall cannot be completely restored to its original shape, and the mounting hole of the vehicle body panel There is no risk that the engaging force with respect to the power will decrease.

  The present invention relates to a clip comprising a head portion for holding a mounting part and a leg portion engaged with a mounting hole of a panel, and the lower end edge of the cylindrical wall of the leg portion is curved toward the head side between the thin plates of the column. By doing so, when the leg portion of the clip is inserted into the mounting hole of the panel, the lower end edge of the cylindrical wall is effectively prevented from being caught by the hole edge of the mounting hole.

  Hereinafter, the present invention will be described in detail on the basis of a preferred embodiment shown in the drawings. The clip according to the embodiment is an integrally molded product of synthetic resin, as shown in FIGS. The head portion 1 for holding the trim board of the automobile and the leg portion 2 engaged with the mounting hole of the vehicle body panel are characterized in that the following configuration is adopted.

  That is, the former head 1 is suspended from the lower surface of the second flange portion 5 in addition to the first flange portion 4 and the second flange portion 5 that are connected in the vertical direction via the neck portion 3 as shown in the figure. A seal flange portion 6 provided, and in particular, a configuration capable of holding the trim board by holding the mounting seat provided on the trim board from the inside and outside with the first and second flange portions 4 and 5. It has become.

  As shown in the figure, the latter leg portion 2 includes a cross-shaped column 8 having four thin plates 7 extending from the second flange portion 5 and extending radially, and substantially from the upper end side of each thin plate 7 of the column 8. And a cylindrical wall 9 connecting the outer edges up to the middle in a circular arc shape. The column 8 has a tapered end and a tapered end, and the outer edge of each thin plate 7 without the cylindrical wall 9 is expanded outward. On the other hand, the diameter of the circumscribed circle in each thin plate 7 is set to be equal to or smaller than the inner diameter of the mounting hole of the vehicle body panel, and the radius of the circumscribed circle in each thin plate 7 is set to be equal to or larger than 1/2 of the inner diameter of the mounting hole. .

  The cylindrical wall 9 has an arcuate radius smaller than the inner diameter 1/2 of the mounting hole, and the distance from the center of the column 8 to the outer peripheral vertex is larger than the inner diameter 1/2 of the mounting hole. The lower end edge 9a is curved in an inverted U shape between the thin plates 7 toward the head 1 side while making a line contact with the hole edge of the mounting hole with an arc whose radius is smaller than 1/2 of the inner diameter of the mounting hole. In addition, four small-diameter shoulders 10 that engage with the hole edge of the mounting hole are formed on the upper end side in the vicinity of the seal flange portion 6, and the diameter of the cross section perpendicular to the axis is the inner diameter of the mounting hole on the tip side The portion that is smaller and curves toward the head 1 side is configured to match the inner diameter of the mounting hole. For this reason, between the cylindrical wall 9 and the support | pillar 8, the space | gap 11 which bends the upper wall of the part curved toward the head 1 side inside is defined.

  Therefore, when the trim board T is fixed to the vehicle body panel P by using the clip having such a configuration, first, the trim board is formed by the first flange portion 4 and the second flange portion 5 of the head 1. When the mounting seat Ta of T is held and the trim board T is held by the head 1, the taper taper tip 8 a of the column 8 is inserted into the mounting hole Pa previously drilled in the vehicle body panel P. The bulging part of each thin plate 7 of the support column 8 is inserted while being in contact with the hole edge of the mounting hole Pa while being centered, and as shown in FIG. 6, the lower end edge 9a exhibiting the curved shape of the cylindrical wall 9 of the leg 2 is attached. Sits on the hole edge of the hole Pa.

  In this case, since the lower end edge 9a side of the cylindrical wall 9 of the leg portion 2 is curved toward the head 1 side between the thin plates 7, the lower end edge 9a of the cylindrical wall 9 is attached to the mounting hole Pa as in the prior art. Needless to say, it is possible to guarantee a smooth insertion work because the pipe is never caught on the edge of the hole, but the diameter of the axial cross section of the cylindrical wall 9 is smaller than the inner diameter of the mounting hole Pa on the tip side, and the head 1 side. Since the cylindrical wall 9 gradually contacts the edge of the mounting hole Pa at two points between the thin plates 7 as the inner diameter of the mounting hole Pa coincides with the inner diameter of the mounting hole Pa, it sits stably. As a result of the elimination of the unevenness, the insertion work into the mounting hole Pa becomes easier.

  When the clip is further pushed in from this state, the lower end edge 9a having the curved shape of the cylindrical wall 9 escapes to the gap 11 side and the upper wall is easily bent inward, so that the leg portion 2 of the clip is attached to the mounting hole. If the hole of the mounting hole Pa gets over the upper wall smoothly inserted into Pa, this time, the hole edge of the mounting hole Pa engages with the shoulder 10 having a small diameter. As a result, as shown in FIG. 7, the trim board T is securely fixed to the vehicle body panel P side.

  In this case, since the radius of the circumscribed circle in each thin plate 7 is set to be equal to or larger than the inner diameter 1/2 of the mounting hole Pa of the panel P, the adjacent circumscribed circle portions are defined as a common tangent or a common circumscribed arc, Since a smooth surface of the cylindrical wall 9 can be obtained, the insertion workability is improved.

  Further, the cylindrical wall 9 has a radius smaller than the inner diameter 1/2 of the mounting hole Pa of the panel P and is in line contact with the hole edge of the mounting hole Pa. Since the cylindrical wall 9 can come into contact with the edge of the mounting hole Pa in a wide range, the contact surface pressure and stress generated in the cylindrical wall 9 are made more uniform and the maximum value is reduced. And permanent deformation can be more effectively suppressed. Therefore, the engaging force with respect to the mounting hole Pa of the vehicle body panel P is not reduced.

  The clip according to the present invention includes a column having a plurality of thin plates in which legs that are engaged with the mounting holes of the panel extend radially, and a cylindrical wall that connects the outer edges of the thin plates of the column in an arc shape, By curving the bottom edge of the cylindrical wall toward the head between each thin plate, it is effective that the bottom edge of the cylindrical wall is caught by the hole edge of the mounting hole when the clip leg is inserted into the panel mounting hole. Therefore, when the automobile trim board is fixed to the vehicle body panel, it is advantageous.

It is a perspective view which shows the clip concerning the Example of this invention. It is a front view of the clip. (A) is a plan view of the clip, and (B) is a bottom view of the clip. (A) is the sectional view on the AA line of FIG. 2, (B) is the sectional view on the BB line of FIG. It is CC sectional view taken on the line of FIG. 3A. It is sectional drawing which shows the state which hold | maintained the trim board and inserted the leg part of the clip in the attachment hole of the vehicle body panel. It is sectional drawing which shows the state which fixed the trim board to the vehicle body panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Head part 2 Leg part 3 Neck part 4 1st flange part 5 2nd flange part 6 Seal flange part 7 Thin plate 8 Support | pillar 8a Tip part 9 Cylindrical wall 9a Bottom edge 10 Shoulder part 11 Space | gap T Trim board (mounting parts)
Ta mounting seat P Car body panel (panel)
Pa mounting hole

Claims (4)

In a clip consisting of a head part for holding a mounting part and a leg part engaged with a mounting hole of the panel, the leg part has a plurality of thin plates extending radially, and the outer edge of each thin plate of the pillars has an arc shape. And the column has a tapered shape at the tip, and the diameter of the circumscribed circle of each thin plate is less than or equal to the inner diameter of the mounting hole, and the cylindrical wall has a radius equal to the mounting hole. And the distance from the center of the support column to the outer peripheral vertex is larger than the inner diameter 1/2 of the mounting hole, while the lower edge thereof is curved toward the head between the thin plates. A clip characterized in that a small-diameter shoulder for engaging the edge of the mounting hole is formed on the upper end side in the vicinity of the head. 2. The clip according to claim 1, wherein a radius of a circumscribed circle in each thin plate is not less than 1/2 of an inner diameter of the mounting hole. 2. The clip according to claim 1, wherein the cylindrical wall is in line contact with a hole edge of the mounting hole by an arc having a radius smaller than an inner diameter 1/2 of the mounting hole. In a clip consisting of a head part for holding a mounting part and a leg part engaged with a mounting hole of the panel, the leg part has a plurality of thin plates extending radially, and the outer edge of each thin plate of the pillars has an arc shape. The column has a tapered taper at the tip, and the outer edge of the thin plate that does not have the cylindrical wall is inflated outward, and the diameter of the circumscribed circle in each thin plate is increased as described above. While the inner diameter of the mounting hole is equal to or less than the inner diameter of the mounting hole, the radius of the cylindrical wall is smaller than the inner diameter 1/2 of the mounting hole, and the distance from the center of the column to the outer peripheral vertex is larger than the inner diameter 1/2 of the mounting hole. The lower edge of the thin plate is curved toward the head between the thin plates, a small diameter shoulder is formed on the upper edge of the vicinity of the head, and the diameter of the cross section perpendicular to the axis is formed. Is the head side smaller than the inner diameter of the mounting hole at the tip side Clip the portion headed curved, characterized in that to match the inner diameter of the mounting hole.

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