JP6166090B2 - Weather strip - Google Patents

Description

  The present invention relates to a weather strip having a hollow seal portion, and more particularly to a weather strip in which a pad for preventing abnormal elastic deformation of a seal portion is partially provided inside the seal portion.

  Conventionally, weather strips are attached to the periphery of an opening in an automobile body and the periphery of an opening / closing member such as a door or an engine hood that opens and closes the opening. When the opening of the vehicle body is closed by an opening / closing member such as a door, the weather strip is pressed against the edge of the door and seals the door and the periphery of the opening of the vehicle. The seal portion has various cross-sectional shapes, and is pressed to be bent and closely contacts the periphery of the opening to separate the outside of the vehicle from the inside of the vehicle. For example, even in the case of a hollow (annular) cross-section seal portion, various types of attachment portions are integrated with this seal portion, and are suitably installed on the periphery of the various opening / closing members described above. Here, mainly the periphery of the trunk or back door provided with a mounting base portion having a substantially U-shaped cross section that is attached to a predetermined mounting position on the peripheral edge of the opening of the vehicle body, and a hollow seal portion projecting from the mounting base portion The following description will be given by taking a weather strip attached to the case as an example.

  For example, the weather strip is mounted in a curved manner corresponding to the corner shape at the corner portion at the periphery of the opening of the vehicle body. However, in the weather strip at the corner portion, the seal portion may be abnormally elastically deformed and the sealing performance may be deteriorated. In order to prevent the deterioration of the sealing performance that occurs outside of the corner portion, a weather pad that has a sponge pad inserted in the hollow portion of the seal portion disposed at a predetermined position such as the corner portion to improve the rigidity of the seal portion. The strip is known. However, just inserting the pad into the hollow portion of the seal portion may cause the pad to move from a predetermined position to a position other than the predetermined position. Therefore, in order to prevent such movement of the pad, a weather strip in which the pad is fixed to the seal portion by a fixing pin is used (see, for example, Patent Document 1).

  Specifically, in the conventional weather strip 101, as shown in FIG. 6, the fixing pin 102 is inserted into the hollow seal portion 103 and the hollow pad 104, and the pad 104 is attached to the seal portion 103 by the fixing pin 102. It is fixed. The fixed pin 102 has a locking portion 102a extending in a direction perpendicular to the axial direction of the pin at the distal end portion thereof, and a head having a diameter larger than other portions or a size equivalent to that of the distal end portion at the proximal end portion. It has the part 102b, ie, is comprised by the substantially I shape. In the fixing pin 102 inserted into the seal portion 103 and the pad 104, the locking portion 102a is in contact with the inner peripheral surface of the hollow pad 104, the head portion 102b is in contact with the outside of the sealing portion 103, and the locking portion 102a and The head portion 102b sandwiches the seal portion 103 and the pad 104. In this manner, the fixing pin 102 fixes the pad 104 to the seal portion 103.

  In addition, the fixing pin 102 usually has the head 102b between the seal portion 103 and the mounting base 105 so that the head 102b does not stand out and the head 102b does not contact the vehicle body when the door is opened and closed. It is provided so as to be located in the formed depression 106.

JP 2008-20361 A

  However, in the conventional weather strip shown in FIG. 6, when the fixed pin 102 is rattled or the pin position is shifted as shown by a two-dot chain line at the time of mounting, the head 102b of the fixed pin 102 is used. Is disposed outside the depression 106 and contacts the door panel or the like when the door is opened and closed, and the door panel may rust or the paint may peel off.

  Furthermore, with the I-shaped fixing pin 102, it is difficult to firmly fix the pad 104 only by having the locking portion 102a at one point of the tip.

  The present invention has been made in view of the above problems, and an object thereof is to enable a pad provided in a hollow seal portion of a weather strip to be securely and firmly fixed to a seal portion by a fixing pin. Another object is to prevent peeling and rusting of the paint on the vehicle body caused by contact between the fixing pin and the door panel around the seal portion.

  In order to achieve the above object, in the present invention, the weather strip has a configuration in which the pad is fixed to the hollow seal portion by fixing pins having locking portions at both ends.

Specifically, a weather strip according to the present invention includes a mounting base that is attached to a periphery of an opening of a vehicle body or a periphery of an opening / closing member that opens and closes the opening, a protrusion protruding from the mounting base, and a periphery of the opening and the opening / closing member. A hollow seal portion for sealing between the pads, a pad inserted into the hollow portion of the seal portion, and a fixing pin inserted from the outside of the seal portion to the pad to fix the pad to the seal portion; The fixing pin further includes a base portion extending in the longitudinal direction outside the seal portion, two insertion portions that are respectively bent from both ends of the base portion and inserted into the pad through the seal portion, Each of the two insertion portions extends in the vertical direction and has two locking portions locked to the pad.

  According to the weather strip according to the present invention, the two insertion portions that are curved from both ends of the base portion of the fixing pin are inserted into the pad through the seal portion, and the locking provided at the tip of each insertion portion. Since the portion is locked to the pad, the pad can be securely and firmly fixed to the seal portion, and rattling of the fixing pin can be prevented. In addition, since the fixed pin does not have a head having a larger diameter than other parts as in the conventional pin, even if the fixed pin is displaced, the fixed pin comes into contact with the vehicle body, It is possible to prevent peeling and rusting of the paint.

  In the weather strip according to the present invention, it is preferable that a recess portion is provided between the attachment base portion and the seal portion, and the base portion of the fixing pin is disposed in the recess portion.

  If it does in this way, since the base part of a fixed pin is stored in a hollow part and is not exposed to the outside of a seal part, as mentioned above, a fixed pin contacts with a vehicle body, and peeling and rusting of the paint in that part arise. This can be prevented more reliably.

  In the weather strip according to the present invention, the pad is preferably hollow, and the locking portion of the fixing pin is locked to the inner peripheral surface of the pad.

  If it does in this way, since the latching | locking part contact | abuts and latches to the internal peripheral surface of a hollow pad, the fixation of the pad with respect to a seal | sticker part can be made more reliable and firm.

  According to the weather strip according to the present invention, the pad can be securely and firmly fixed to the hollow seal portion, and the fixing pin can be prevented from rattling or misalignment. Furthermore, it is possible to prevent the fixing pin from coming into contact with the vehicle body and causing the coating to peel off and rust at that portion.

It is a rear view which shows the motor vehicle which applied the weather strip which concerns on one Embodiment of this invention. It is sectional drawing in the AA of FIG. 1 which shows the weather strip which concerns on one Embodiment of this invention. It is a perspective view of the weather strip which concerns on one Embodiment of this invention. It is a perspective view which shows the fixing pin of the weather strip which concerns on one Embodiment of this invention. It is a figure which shows the method of inserting a fixing pin in a seal part and a pad. It is a figure which shows the conventional weather strip.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its method of application, or its application.

  In the automobile shown in FIG. 1, 1 is a vehicle body, 2 is a trunk room, and 3 is a trunk lid (opening / closing member) for opening and closing the trunk room 2. A weather strip 10 according to the present embodiment is attached to the opening peripheral edge 2 a of the trunk room 2. In the present embodiment, the weather strip 10 is described as an example of the weather strip 10 provided on the periphery of the opening portion of the trunk room 2 that is opened and closed by the trunk lid 3, but the present invention naturally includes a front door, The present invention can also be applied to a weather strip provided at the periphery of another opening that is opened and closed by a rear door, an engine hood, or the like.

  2 is a cross-sectional view taken along line AA of FIG. 1 showing the weather strip 10 of the present embodiment, and FIG. 3 is a perspective view showing the weather strip 10 of the present embodiment. As shown in FIGS. 2 and 3, the weather strip 10 has a substantially U-shaped attachment base portion 11 made of, for example, solid rubber, and the attachment base portion 11 is provided with a flange ( (Not shown) so as to sandwich it. The mounting base 11 includes an outer trim 11a and an inner trim 11b, and further includes a plurality of assembly lips 11c that are assembled to flanges provided on the opening peripheral edge 2a.

  The weather strip 10 also has a hollow seal portion 12 that protrudes from the mounting base portion 11. The seal portion 12 is made of, for example, sponge rubber. The seal portion 12 may be formed integrally with the attachment base portion 11. When the trunk room 2 is closed by the trunk lid 3, the seal portion 12 is pressed against the peripheral edge of the trunk lid 3 and seals between the peripheral edge of the trunk lid 3 and the opening peripheral edge 2 a of the trunk room 2.

  Further, a recessed portion 15 having a shape recessed inside the weather strip 10 is formed between the attachment base portion 11 and the seal portion 12, that is, at a boundary position between the attachment base portion 11 and the seal portion 12.

  A hollow sponge pad 13 is inserted into the hollow portion 12 a of the seal portion 12 of the weather strip 10 at the corner portion of the opening peripheral edge portion 2 a of the trunk room 2 corresponding to the position of the AA line in FIG. Here, the hollow pad 13 may be made of solid. In the present embodiment, the hollow pad 13 is used, but a solid pad may be used. In such a corner portion, the sealing portion 12 may be abnormally elastically deformed and the sealing performance may be lowered. Therefore, by inserting the pad 13 into the hollow portion 12a, the rigidity of the sealing portion 12 in the corner portion is improved. Abnormal elastic deformation.

  Further, the pad 13 is fixed to the seal portion 12 by the fixing pin 14 so that the pad 13 does not move from the hollow portion 12a at the corner portion to the hollow portion 12a other than the corner portion. The fixing pin 14 is inserted from the outside of the seal portion 12 through the hollow portion 12 a of the seal portion 12 to the inside of the pad 13, whereby the pad 13 is fixed to the seal portion 12.

  Here, the fixing pin 14 used is demonstrated, referring FIG. 4 (a) and (b).

  As shown in FIG. 4A, the fixing pin 14 is substantially H-shaped before being inserted into the weather strip 10, that is, the rod-like base portion 14a and the base portion 14a from both ends of the base portion 14a. And a locking portion 14c extending in a direction perpendicular to the vertical direction. The fixing pin 14 is made of a synthetic resin having flexibility, and for example, a material such as nylon, polyethylene terephthalate, polyethylene, polypropylene, or polyurethane is used. For this reason, as shown in FIG. 4B, the fixing pin 14 can be elastically deformed by applying an external force, and both ends of the base portion 14 a are bent when inserted into the weather strip 10. Thus, the insertion portion 14 b is inserted into the pad 13 through the seal portion 12. That is, when the fixing pin 14 is inserted into the pad 13, the base portion 14a is disposed so as to extend in the longitudinal direction outside the seal portion 12 of the weather strip 10, and the bending portion 14b is bent from both ends of the base portion 14a. Then, a locking portion 14c inserted into the pad 13 and extending in the vertical direction from the insertion portion 14b is disposed so as to be locked to the inner peripheral surface of the pad 13 (see FIGS. 2 and 3). ). At this time, the base portion 14 a is preferably disposed in the recess portion 15. If it does in this way, it can prevent that base 14a of fixed pin 14 contacts a vehicle body, and exfoliation and rust of the paint in that part arise.

  As long as the fixing pin 14 can be inserted into the seal portion 12 and the pad 13 as described above, the insertion method is not particularly limited. For example, the fixing pin 14 can be inserted using a commercially available driving jig.

  Hereinafter, an example of a method for inserting the fixing pin 14 into the seal portion 12 and the pad 13 will be described with reference to FIG. Note that this method is an example of a method for inserting the fixing pin 14, and is not limited to this.

  As shown in FIG. 5, in order to insert the fixing pin 14 into the seal portion 12 and the pad 13, for example, a driving jig 20 having two hollow needle portions 21 with sharp tips can be used. Each of the two hollow needle portions 21 has a slit (not shown) that communicates with the hollow portion on the side facing the other needle portion 21 along the longitudinal direction of the needle portion 21.

  First, the two locking portions 14 c of the fixing pin 14 are accommodated in the hollow portions of the needle portion 21, respectively. At this time, the base portion 14a is disposed so as to straddle between the two needle portions 21 through the slit. For this reason, the fixing pin 14 is movable along the longitudinal direction of the needle part 21.

  After attaching the fixing pin 14 to the hollow needle portion 21 as described above, the needle portion 21 is inserted into the hollow portion 15 of the weather strip 10 and inserted until the tip of the needle portion 21 reaches the hollow portion of the pad 13.

  Thereafter, the fixing pin 14 is pushed in the direction of the distal end of the needle portion 21 by a predetermined pushing means (not shown), whereby the base portion 14a is elastically deformed and curved, and the locking portion 14c is padded from the needle portion 21. 13 is extruded into the hollow part. As a result, the locking portion 14 c comes into contact with the inner peripheral surface of the pad 13 and is locked. As a result, as shown in FIG. 3, the fixing pin 14 has the base portion 14 a disposed in the recess 15 of the weather strip 10, and the insertion portions 14 b curved at both ends of the base portion 14 a on the seal portion 12 and the pad 13. Inserted, the locking portion 14 c is locked to the inner peripheral surface of the pad 13.

  Further, when the pad 13 is solid, if the pad 13 is made of foamed sponge, when the locking portion 14 c of the fixing pin 14 is pushed out from the needle portion 21 into the pad 13, the locking portion 14 c is moved to the pad 13. The sponge 13 is caught in the eyes of the bubbles, or is spread and caught while breaking through the foam wall, and is locked to the pad 13. Thus, it is preferable to use a relatively thin tip of the locking portion 14c.

  In addition, even when the pad 13 is hollow or solid, when the fixing pin 14 is fixed, the pressing depth of the tip of the needle portion 21 is important. It is preferable that the pushing depth is adjusted so that the inner peripheral surface is brought into contact with and locked. In the case of a solid state, the locking portion 14c reaches the pad, and of course, it is installed at a depth that does not easily disengage even after receiving a certain amount of impact after mounting. When installed, the base portion 14a of the fixing pin 14 exposed on the external surface of the weather strip 10 is preferably installed so as to bite into the surface of the weather strip 10, and the biting state is set in this way. It is possible to maintain strong fixation without rattling, and to prevent the fixing pin 14 from being caught or touched by another object.

  As described above, in the weather strip 10 according to the present embodiment, the two insertion portions 14b that are curved from both ends of the base portion 14a of the fixing pin 14 are inserted into the pad 13 through the seal portion 12, and A locking portion 14 c provided at the distal end of the insertion portion 14 b is locked to the pad 13. For this reason, a pad can be fixed to a seal | sticker part reliably and firmly, and it can prevent that the fixing pin rattles. In addition, since the fixing pin is not I-shaped as in the prior art, and the head and end having a diameter larger than other parts are not exposed to the surface appearance of the weather strip 10, the fixing pin comes into contact with the vehicle body, It is possible to prevent the peeling and rusting of the paint at the part. In FIG. 3, the base 14 a of the fixing pin 14 is seen as a single line on the outside of the hollow of the weather strip 10, so that it looks good.

  Further, in the present embodiment, an example in which the pad 13 is installed at the corner portion of the weather strip 10 is shown, but the present invention is not limited to the corner portion and can be used anywhere where the pad 13 is necessary.

1 Body 2 Trunk room (opening)
2a Opening edge 3 Trunk lid (opening / closing member)
DESCRIPTION OF SYMBOLS 10 Weather strip 11 Mounting base 11a Car outer trim 11b Car inner trim 11c Assembly lip 12 Seal part 12a Hollow part 13 Pad 14 Fixing pin 14a Base 14b Insertion part 14c Locking part 15 Recessed part 20 Driving jig 21 Needle part

Claims (3)

A mounting base that is attached to the periphery of the opening of the vehicle body or the periphery of the opening and closing member that opens and closes the opening, and a hollow seal that protrudes from the mounting base and seals between the periphery of the opening and the opening and closing member A weatherstrip with a portion,
A pad inserted into the hollow portion of the seal portion;
In order to fix the pad to the seal portion, further comprising a fixing pin inserted from the outside of the seal portion to the pad,
The fixing pin includes a base portion extending in a longitudinal direction outside the seal portion, two insertion portions that are respectively curved from both ends of the base portion and inserted into the pad through the seal portion, and the two A weather strip having two locking portions extending vertically from each of the insertion portions and locked to the pad. Between the mounting base and the seal portion, there is a recess,
The weather strip according to claim 1, wherein a base portion of the fixing pin is disposed in the hollow portion.   The weather strip according to claim 1 or 2, wherein the pad has a hollow shape, and a locking portion of the fixing pin is locked in contact with an inner peripheral surface of the pad.

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