JPH0612812U - Clip for fixing elastic cushioning material - Google Patents

Abstract

(57) [Abstract] [Purpose] A fixing clip provided with a plurality of claw pieces that extend from a head portion to be inserted into a weather strip or the like, and that are inclined and protrude from the shaft portion toward the head side. At, the insertion load of each of the claw piece and the head is reduced. [Structure] A clip groove 5 having a predetermined width substantially orthogonal to the insertion direction is provided on the insertion side of the claw piece 3 of the clip, and a substantially concentric shape is provided on the insertion side of the head 1 of the clip formed in a circular umbrella shape. It is characterized by a configuration in which a substantially circular kerf 6 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixing clip for attaching an elastic cushioning material such as a weatherstrip to a metal plate such as an automobile body panel.

[0002]

[Prior art]

 A clip used to fix a decorative trim on the inner wall of an automobile or to attach a weatherstrip to the opening of a vehicle body is usually composed entirely of a relatively hard elastic resin. A head inserted into the cushioning material and holding the same, a shaft extending a required length from the head, and a plurality of fin-shaped claw pieces that incline and project from the shaft toward the head. The claw piece is elastically deformed when inserted into an attachment hole of a body panel of an automobile, etc., and the free end of the claw piece is engaged with the back side edge of the attachment hole to prevent it from coming off. Those that aim to

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional fixing clip, although the above-described effect is obtained, the entire clip is integrally molded of a relatively hard synthetic resin in order to impart the required elastic force to the claw piece. Therefore, when pushing against the elastic force of the claw piece into the mounting hole, the insertion load is high and it is difficult to work, and the strong elasticity of the claw piece causes the coating film of the body panel to be damaged. ing.

Further, in recent years, in order to secure the attachment strength and durability of the weather strip and the clip, the applicant has vulcanized and bonded a thin iron plate to the base of the weather strip, and provided a circular hole in the iron plate. Although it has been attempted to insert the head of the clip, since the head of the clip is generally provided so as to project in the direction perpendicular to the axis, the insertion load becomes higher than that of the claw of the clip described above. There is also a problem that the installation work is difficult.

The present invention copes with the actual situation as described above, and by adding a simple structure to the claw piece of the clip, the insertion load is reduced when the clip is inserted into the mounting hole, and the force after mounting is higher than ever. With the purpose of engaging the clip with the body panel, etc., and on the other hand, by finding a new structure in the head of the clip, it is possible to insert the head into the hole of the iron plate of the weatherstrip while lowering the load. To do.

[0006]

[Means for Solving the Problems]

 That is, the features of the fixing clip of the present invention that meet the above-mentioned purpose are as follows: First, a head that is inserted into an elastic cushioning material such as a weather strip and holds it, and a required length from the head. It has an extended shaft part and a plurality of claw pieces that incline and project from the shaft part toward the head side, and the claw pieces are elastically deformed when the mating member is inserted into the mounting hole, and the mounting hole is formed. In the fixing clip that engages with the back side edge portion, a kerf having a predetermined width that is substantially orthogonal to the insertion direction is formed on the insertion side of the claw piece. Further, a second fixing clip of the present invention is a clip having a plurality of claw pieces which extend a shaft portion from a head portion and incline and project from the shaft portion toward the head side. It is characterized in that it is formed in a substantially circular umbrella shape, and a substantially circular kerf that is substantially concentric with the head is formed on the insertion side of the umbrella-shaped head.

[0007]

[Action]

 In the fixing clip of the present invention having the above-mentioned first configuration, when the pawl piece is inserted into the mounting hole of the mating member, the kerf is bent and the pawl piece is bent to reduce the insertion load of the clip. Also, after insertion, by closing the notch with the specified width, the claw pieces can be expanded from the original angle, and the engagement range with the mounting hole can be expanded to prevent the clip from coming off. It is possible to improve the strength.

In addition, in the fixing clip of the present invention having the above-mentioned second configuration, when inserting the clip head into the circular hole of the weatherstrip iron plate, the substantially circular umbrella-shaped head is pressed against the hole edge. As a result, the circular kerf is pushed open, and it is possible to push down the peripheral portion of the head projecting in the direction perpendicular to the axis as a whole, which reduces the diameter of the clip head and reduces its insertion load. It is possible to lower it.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a partially sectional front view showing a fixing clip according to an embodiment of the present invention, FIG. 2 is a perspective view thereof, and FIGS. 3 to 6 are explanatory views showing the action of the clip of the embodiment. The fixing clip of this embodiment integrally molded of a synthetic resin having a relatively hard elasticity is inserted into a weather strip (W) or the like, and an umbrella-shaped circular head (1) for holding it. As shown in FIGS. 1 and 2, a shaft portion (2) extending a required length from the center of the head portion (1) and an inclination from the shaft portion (2) to the head portion (1) side. It has a plurality of fin-like claw pieces (3) protruding, and the claw pieces (3) are elastically deformed by spring when the attachment hole (4) of the body panel (P) or the like is inserted, and this attachment hole (4). It has a basic structure that engages with the back edge of the.

In the present invention, as shown in FIGS. 1 and 2, when the pawl portion (3) is inserted, a kerf (5) having a predetermined width, which is substantially orthogonal to the inserting direction, is formed. The cut groove (5) has a V-shaped cross section in the clip of this embodiment, but may have another shape other than that. Further, it is preferable that the width of the cut groove (5) is formed to be about 0.2 to 0.4 mm on the surface of the claw piece (3). Further, it is suitable that the cut groove (5) is provided so as to extend over the entire claw piece (3), but the invention is not limited to this, and a curve may be drawn.

On the other hand, the head (1) of the above-mentioned clip is provided in the shape of a circular umbrella as described above, and on the insertion side thereof, the shaft (1) is substantially concentric with the head (1). A circular kerf (6) having the same diameter as the portion (2) is formed. Similar to the cut groove (5) of the claw piece (3), the cut groove (6) is also cut into a V-shaped cross section in this embodiment, but the cut groove (6) is not limited to this. If the diameter of the kerf (6) is smaller than the diameter of the hole into which the head (1) is inserted, the intended purpose can be achieved.

Therefore, in the fixing clip of the embodiment of the present invention having the above structure, as shown in FIGS. 3 and 4, the tab (3) is attached to the mounting hole (4) of the body panel (P). When inserting the clip, as shown in FIG. 3, the cut groove (5) can be opened to bend the claw piece (3) to reduce the insertion load of the clip. As shown in FIG. 4, by closing the kerf (5) having the predetermined width, the claw piece (3) is expanded from the original angle, and the engagement range with the mounting hole (4) is expanded as shown in the drawing. It is possible to improve the strength against the slipping out of the clip.

Further, by providing the circular kerf (6) in the head (1) as described above, as shown in FIG. 5, the circular hole (7) of the iron plate (T) fixed to the weather strip (W) is formed. ), The circular umbrella-shaped head (1) is pressed against the edge of the circular hole (7) when inserting the clip head (1) into the circular cutting head (1). When the groove (6) is pushed open, the peripheral portion of the head (1) that projects in the direction perpendicular to the axis can be stretched and pushed down as a whole as shown in the drawing, whereby the clip head (1) can be pushed down. ) Can be reduced in diameter to reduce the insertion load. Further, after the insertion of the head (1), the kerf (6) is automatically closed by elasticity as shown in FIG. 6, and the iron plate (T) of the weather strip (W) can be securely held. is there. It should be noted that another kerf (not shown) is radially provided around the outer side of the kerf (6) of the head (1) so that the peripheral portion of the head (1) is more easily pushed open. It is also possible to do so.

[0014]

[Effect of device]

 The present invention has the above-described configuration and operation, and when the claw pieces of the clip are provided with a kerf having a predetermined width, when the claw pieces are inserted into a mounting hole of a body panel or the like, The cut groove is opened to bend the claw piece to reduce the insertion load of the clip, and after the insertion, the cut groove closes to open the claw piece from the beginning and widen the engagement range with the mounting hole. This makes it possible to increase the clip pull-out load.

Further, by providing a circular kerf on the head of the clip, the umbrella-shaped head is pressed against the edge of the circular hole even when the head is inserted into the circular hole of the iron strip of the weatherstrip. By doing so, it is possible to expand the circular kerf and push down the peripheral part of the head, which has the remarkable effect of reducing the diameter of the clip head and reducing its insertion load. Is to have.

[Brief description of drawings]

FIG. 1 is a partial sectional front view showing a fixing clip according to an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is an explanatory view showing a time when the claw pieces of the clip of the embodiment are inserted.

FIG. 4 is an explanatory view showing a state after the claw pieces of the clip of the same embodiment are inserted.

FIG. 5 is an explanatory diagram showing a state where the head of the clip of the embodiment is inserted.

FIG. 6 is an explanatory diagram showing the head of the clip of the embodiment after insertion.

[Explanation of symbols]

 (1) Head (2) Shaft (3) Claw piece (4) Mounting hole (5) Cut groove (claw piece) (6) Cut groove (head) (7) Circular hole (W) Weather strip (P ) Body panel (T) Iron plate

Claims (2)

[Scope of utility model registration request] 1. A head that is inserted into an elastic cushioning material such as a weather strip and holds the same, a shaft portion that extends a required length from the head portion, and an inclined projection from the shaft portion toward the head side. A plurality of claw pieces which are engaged with each other, the claw pieces are elastically deformed when the mating member is inserted into the mounting hole, and the fixing clip is engaged with the back side edge of the mounting hole. A clip for fixing an elastic cushioning material, characterized in that a cut groove having a predetermined width which is substantially orthogonal to the insertion direction is formed in the. 2. A head that is inserted into an elastic cushioning material such as a weather strip and holds the same, a shaft portion that extends a required length from the head portion, and a portion that projects from the shaft portion while tilting toward the head portion. And a plurality of claw pieces, which are elastically deformed by the claw pieces when the mating member is inserted into the mounting hole, and engage the rear side edge of the mounting hole. A clip for fixing an elastic cushioning material, which is formed in the shape of an umbrella and has a substantially circular kerf substantially concentric with the head on the insertion side of the head.