JP2008030503A - Mounting structure of weatherstrip for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure which improves mounting workability of a weather strip to a mounting plate and prevents the weather strip from being slipped out from the mounting plate on condition of the structure for mounting the weather strip to a part of a front fender side which receives a hood in closing of the hood through the mounting plate. <P>SOLUTION: In the structure, a plurality of clips 7, 7, , , and 7A on the mounting plate 3 side and a plurality of round hole-shaped mounting holes 6, 6, , , on the weather strip 4 side are fitted and locked. While the clips 7, 7, , , and 7A are made to be an approximately L-shaped cross section, head part projection directions of the clip 7 and the clip 7A at both ends are made reverse to each other and each of the head part projection directions orients the relevant terminal 4a or 4b. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile weather strip mounting structure, and more particularly to a weather strip for sealing via an attachment plate on an opening edge of a vehicle body side opening of an automobile or a peripheral portion of an opening / closing body such as a hood for opening and closing the vehicle body side opening. It is related with the structure where it attached.

  In order to seal the mating part of both sides of the hood and the front fender in the body of an automobile, as described in Patent Document 1, seal members attached to both sides of the hood inner panel are placed in the engine room when the hood is closed. 1 and 2, for example, as shown in FIGS. 1 and 2, the hood ridge panel or the inner surface of the front fender 2 along the front and rear direction in the engine room of the body of the automobile. For example, a resin mounting plate 3 is disposed, and a long, for example, hollow weather strip 4 is disposed on the upper surface of the mounting plate 3 as a sealing member. In this structure, by setting the mounting plate 3, the hood ridge panel in the engine room or the front fender 2 in the engine room when the hood 1 is opened is covered and the appearance is improved, and the hood inner panel 1a is weathered. The main purpose is to suppress wind noise during running by elastically contacting the strip 4.

Here, as a method of attaching the weather strip 4 to the attachment plate 3, a conventionally known clip method is adopted. For example, as shown in FIGS. 3 and 4, a plurality of substantially T-shaped clips 5, 5... Are integrally formed in a row on a mounting surface 3 a that is the upper surface of the mounting plate 3, and at a predetermined pitch on the weather strip 4 side. The weather strip 4 is fixedly held on the mounting plate 3 by fitting and locking the formed mounting holes 6 to the respective clips 5, 5. A fixing structure using similar clips is described in Patent Document 2.
JP-A-8-11647 Japanese Utility Model Publication No. 6-61662

  In the conventional mounting structure as shown in FIGS. 3 and 4, unlike the one shown in Patent Document 2, the number of parts can be reduced because the clips 5, 5,. On the other hand, on the contrary, since each clip 5, 5... Is integrated with the mounting plate 3 in advance, the weather in which each clip 5, 5. The installation work of the strip 4 is troublesome, and the installation workability is extremely bad. In particular, when the mounting hole 6 on the weather strip 4 side is fitted and locked to the substantially T-shaped clips 5, 5... Integrated in advance with the mounting plate 3, both cannot be sufficiently visually recognized. This means that the fitting / locking operation must be performed. In some cases, the attachment hole 6 may be cleaved, and there is still room for improvement.

  The present invention has been made paying attention to such problems, and a weather strip is attached to an opening edge of a vehicle body side opening or a peripheral portion of an opening / closing body such as a hood for opening / closing the vehicle body side opening via an attachment plate. On the premise of the mounting structure, the present invention aims to provide a structure in which the weather strip is particularly easily attached to the mounting plate, and the weather strip is difficult to come off from the mounting plate.

  The invention described in claim 1 is based on the premise that a weather strip is attached to an opening edge of a vehicle body side opening of an automobile or a peripheral edge of an opening / closing body that opens and closes the vehicle body side opening via an attachment plate. .

  In addition, a protrusion for securing the weather strip on the mounting surface on the mounting plate fixed to the opening edge of the vehicle body side opening or the peripheral edge of the opening / closing body is provided along the longitudinal direction of the weather strip. The mounting base on the weather strip side is formed with a plurality of mounting holes that are fitted and locked in a hooked relationship with the protrusion, and the protrusion is on the mounting plate side. And forming the head of the weather strip in the longitudinal direction at the tip of the leg standing upright from the mounting surface, and having a substantially L-shaped cross section, and at least one of the plurality of protrusions The head protruding direction of the part is opposite to the head protruding direction of the other protrusions.

  In addition, the protrusion part said to this invention is corresponded to the clip of the prior art illustrated previously. More specifically, for example, as described in claim 2, the number of the plurality of protrusions arranged in parallel is at least four, and at least two protrusions located on one end side in the protrusion arrangement direction Both head protruding directions are directed to the terminal on one end side, and the head protruding directions of at least two protrusions located on the other end side of the protruding part are also connected to the terminal on the other end side. Set to be oriented.

  Alternatively, as described in claim 3, the head protruding direction of the outermost protruding portion located at either one of the both ends of the protruding portion side-by-side direction is set to the head protruding direction of the other protruding portions. It is set so as to be reversed and directed to one of the terminals, or, as described in claim 4, the head protruding directions of the protrusions are alternately reversed in the protrusion juxtaposition direction. In addition, the head protruding directions of the outermost protrusions located at both ends are set so as to be directed to the respective terminals.

  Each of the mounting holes has a diameter smaller than that of the projection of the projection and a size capable of receiving the leg of the projection, for example.

  Therefore, according to the inventions according to the first to fifth aspects, the plurality of protrusions necessary for attaching and holding the weather strip to the attachment plate are each substantially L-shaped in cross section, and their directions are aligned. While the mountability based on the fitting and locking between the protrusion and the mounting hole is improved, at least one of the plurality of protrusions is reversed, for example, an external force in the disengagement direction. Even if this works, the weather strip is unlikely to come off the mounting plate.

  In other words, the larger the number of protrusions with a substantially L-shaped cross-section, the better the mounting property, but conversely, it tends to come off with a slight external force. It is desirable to set the number and position of the protrusions whose directions are reversed according to the number of the mounting holes arranged in parallel.

  According to the sixth aspect of the present invention, on the assumption that the weather strip mounting structure for an automobile according to the third aspect of the present invention is used, the mounting hole on the side of the weather strip to be fitted and locked to the outermost protrusion is It is formed with a diameter smaller than that of the projection of the end projection and the size of the leg of the end projection so that it can be received. The mounting hole on the weather strip side to be locked is formed to have a size that can receive each of the other projections in a planar projection shape, and the other projection corresponding to each mounting hole is formed. It is characterized in that the two are set so as to be hooked for retaining only when they are relatively moved in the juxtaposed direction in the received state.

  Therefore, in the invention according to claim 6, the mounting holes on the weather strip side to be fitted and locked to the other protrusions other than the outermost protrusion are flat on the other protrusions. Since it is formed in a size that can be received as it is in the projected shape, it is easier to fit the two together, and each mounting hole receives the other protruding part corresponding to the protruding part side by side Only when the two are moved relative to each other in the direction, the two are brought into the relationship of catching to prevent them from coming off, and the original function of preventing the slipping off or retaining is brought about.

  Here, in the invention described in each of the above claims, as described in claim 7, the head of each protrusion is provided with a detent means for preventing displacement from the mounting base on the weather strip side. If there is, it becomes more desirable.

  Moreover, as a more specific shape of the weather strip, for example, a hollow shape or a tongue-like shape is assumed, but a hollow shape is desirable for the effect of improving the sealing performance. In this case, as described in claim 8, a mounting hole is formed in the mounting base portion that functions as a part of the peripheral wall forming the hollow portion of the weather strip.

  According to the first aspect of the present invention, the shape of the plurality of protrusions for fixing and holding the weather strip is substantially L-shaped in cross section, and at least one of them is set in the reverse direction. This makes it possible to achieve both ease of attaching the weather strip to the mounting plate and difficulty in detaching, and greatly improves the mounting workability especially when fitting and locking the mounting holes and projections on the weather strip side. It will be possible to improve.

  In particular, according to the invention described in claim 2, since the direction of each projection is directed to the outside in the longitudinal direction at both ends in the longitudinal direction of the weather strip, a plurality of adjacent projections are directed in the same direction. Further, the mounting workability at the time of fitting and locking the mounting holes on the weatherstrip side and the protrusions is further improved, and it is possible to prevent the weatherstrip from coming off due to the shift in the longitudinal direction.

  According to the third aspect of the present invention, since only the direction of the outermost protrusion is reversed, the number of protrusions in the same direction is large as a whole, so that the mounting holes on the weather strip side are the same as described above. The mounting workability at the time of fitting and locking the projection and the projection is further improved.

  According to the fourth aspect of the present invention, since the protrusions are alternately reversed, the weather strip can be prevented from coming off due to a shift in the longitudinal direction, and the weather strip can be attached and retained more easily. improves.

  According to the invention described in claim 5, since the mounting hole on the weather strip side has a diameter smaller than that of the projection of the projection and a size capable of receiving the leg of the projection, It is possible to more reliably prevent the strip from coming off due to the shift in the longitudinal direction, and the weather strip mounting retention is further improved.

  According to the sixth aspect of the present invention, the mounting holes on the weather strip side that are to be fitted and locked to the other projections other than the endmost projections, and the projections corresponding to the mounting holes are formed in a planar projection shape. While it is formed as a size that can be received as it is, each mounting hole receives the other protrusion corresponding to it and moves it in the direction in which the protrusions are juxtaposed, so that both of them are caught for retaining. Since it is set so as to be related, not only can the weather strip be easily attached to the mounting plate but also difficult to come off, and in particular, each mounting hole can accept the corresponding projection as a planar projection shape. Therefore, the mounting workability when fitting and locking the mounting hole on the weatherstrip side and the projection is further improved.

  According to the seventh aspect of the present invention, since the displacement preventing means for preventing the displacement from the mounting base on the weather strip side is provided at the head of each projection, the effect of preventing the weather strip from coming off due to the displacement is further remarkable. It becomes.

  5 and 6 are views showing a more specific first embodiment of the mounting structure according to the present invention, and the same reference numerals are given to the parts common to FIGS.

  As shown in FIG. 5, a plurality of clips 7, 7... As projections are arranged in a line on the mounting surface 3a of the mounting plate 3 formed in a predetermined shape with a thermoplastic elastomer, as in FIGS. However, as the clips 7, 7,..., Those having a substantially L-shaped cross section are employed instead of the conventional generally T-shaped one as shown in FIG. These clips 7, 7... Are formed integrally with the mounting plate 3 itself, and are arranged in the direction in which the clips 7, 7, etc. are juxtaposed at the tip of a columnar leg 7 a that stands upright from the mounting surface 3 a of the mounting plate 3. Alternatively, the head 7b oriented in the longitudinal direction of the weather strip 4 is formed so as to protrude so as to have a substantially L-shaped cross section as a whole. As is well known, the weather strip 4 is formed of, for example, EPDM sponge rubber.

  6A shows a state of the weather strip 4 alone, and FIG. 6B shows a sectional view of the weather strip 4 fixed and held on the mounting plate 3, respectively. In the weather strip 4 having the seal lip 14, a part of the peripheral wall forming the seal lip 14 is a thick and flat mounting base 8, and the mounting base 8 has a plurality of mounting holes 6 which are round holes. , 6... Are formed at an equal pitch.

  On the other hand, the same number of clips 7, 7... Shown in FIG. 5 as the mounting holes 6, 6,. In the juxtaposed direction of these clips 7, 7... Or the longitudinal direction of the weather strip 4, for example, the protruding direction of the head 7 b of the other clips 7, 7. They are aligned in the opposite direction to that of 7A and all in the same direction. That is, in this embodiment, the protruding direction of the head 7b of the clip 7A located at one end in the direction in which the clips 7, 7. Is set so as to be directed to the terminal 4a on the side, while the protruding direction of the head 7b of each of the clips 7, 7... Other than the clip 7A is directed to the terminal 4b on the other end side of the weather strip 4. It is set.

  Then, using the self-elasticity of the weather strip 4 itself, each mounting hole 6, 6... Is fitted and locked to the corresponding clip 7, 7. 6 is made to have a hooking relationship for preventing the heads 7b of the clips 7, 7... From slipping, so that the flat mounting base 8 on the weather strip 4 side is seated on the mounting surface 3a on the mounting plate 3 side. In this way, it is firmly fixed and held.

  The distance between the mounting surface 3a on the mounting plate 3 side and the head 7b of the clips 7, 7,... Is set to a size that can accommodate the thickness of the mounting base 8 on the weather strip 4 side. The size of the mounting holes 6, 6... Is set to a size that can receive the legs 7a of the clips 7, 7,.

  Therefore, according to such a mounting structure of the weather strip 4, the weather strip 4 is mounted by fitting and locking the plurality of clips 7, 7,..., 7A and the corresponding plurality of mounting holes 6, 6,. When fixed to the plate 3, the orientation of most of the clips 7, 7... Excluding the clip 7A is the same, so that the mounting workability is excellent. In addition, since the direction of the single clip 7A located at one end is opposite to the other direction, even if an external force causing a positional shift in the longitudinal direction of the weather strip 4 is applied, for example, It is possible to sufficiently oppose the external force in any direction, and the fitting / locking state between the clips 7, 7... And 7 A and the mounting holes 6, 6.

  As described above, according to the present embodiment, both the ease of attaching the weather strip 4 to the attachment plate 3 and the difficulty of detachment can be achieved. In particular, the attachment holes 6, 6. , 7... And 7 </ b> A can be easily attached and locked.

  Here, if importance is attached to the ease of mounting by fitting and locking the clips 7, 7,... And 7A and the mounting holes 6, 6,..., For example, as shown in FIG. If it is slightly bent so that the tip end side of the head 7b in 7A is upward, the mounting workability is further improved.

  On the other hand, in order to stably maintain the fitting / locking state of the clips 7, 7,... And 7A and the mounting holes 6, 6,. In the case where importance is attached to the performance, as shown in FIG. 8A, a single claw 9 or as shown in FIG. If the saw-toothed claw 10 is provided as described above, the mounting and holding performance is further improved.

  9 and 10 show the second and third embodiments of the present invention, and the same reference numerals are given to the parts common to the first embodiment.

  In the second embodiment of FIG. 9, the heads of a plurality of clips 7A, 7A... On one end side in the juxtaposition direction of the clips 7, 7,. .. Are aligned so that the protruding direction of 7b is directed to the direction of the terminal 4a on one end side of the weather strip 4, while the heads 7b of the plurality of clips 7, 7. The orientation is aligned so that the direction of the terminal 4b on the other end side of the weather strip 4 is directed so that the direction is opposite to the previous clips 7A, 7A.

  In the third embodiment of FIG. 10, the heads of the clips 7, 7... And 7A, 7A... In the direction in which the clips 7, 7. The projecting directions of the heads 7b of the endmost clips 17 as the endmost protrusions located at both ends of the clip juxtaposing direction are opposite to each other, and the weather strips 4 are respectively opposite to each other. It is set to point in the direction of the corresponding terminal 4a or 4b on the side.

  In the second embodiment shown in FIG. 9, the clips 7, 7... And 7A, 7A... Are opposite to each other, but the clips 7, 7. As the number of clips facing the direction increases, the mounting workability is improved.

  Further, in the third embodiment shown in FIG. 10, the orientation of the clips 7 and 7A is alternately reversed, so that the weather strip 4 is prevented from being displaced in the longitudinal direction, particularly in the attached state. The retention at is good.

  FIG. 11 is a diagram showing a fourth embodiment of the present invention. The same reference numerals are given to the parts common to those shown in FIG. 6 as the first embodiment.

  In the fourth embodiment, the protruding direction of the head 7b of the single clip 7A at the right end among the plurality of clips 7, 7... 7A is opposite to the other clips 7, 7. Except for the mounting hole 6 corresponding to a single clip 7A, the other mounting holes 16, 16,... Although the short diameter of the long hole-shaped mounting holes 16, 16... Is the same as that of the mounting hole 6 shown in FIG. 6, the long diameter D1 of the mounting holes 16, 16. The planar projection length H of each clip 7, 7... Is set to a size that can be received as it is.

  Therefore, in the fourth embodiment, as shown in FIG. 12, the long hole-shaped mounting holes 16, 16,... Are fitted into the corresponding clips 7, 7,. The entire weather strip 4 is slid to the clip 7A side by the stroke S left between the mounting holes 16, 16... And the legs 7a on the clips 7, 7. Because of this sliding operation, at least the long hole-like mounting holes 16, 16... Are in a so-called hooked relationship with the corresponding clips 7, 7. At the limit position, the weather strip 4 can be attached by fitting and locking a single round hole-shaped mounting hole 6 to the corresponding clip 7A in the opposite direction so as to prevent it from being pulled out. Complete.

  In this case, as shown in FIG. 11B, although a predetermined stroke S1 is left between the elongated mounting holes 16, 16,... And the clips 7, 7,. Since the hole-shaped attachment hole 6 is fitted and locked to the clip 7A, it can sufficiently face the positional deviation or the like of the weather strip 4 in the longitudinal direction.

  As described above, in the fourth embodiment, the elongated mounting holes 16, 16... And the clips 7, 7 except the clip 7 A are engaged and locked based on the slide displacement of the weather strip 4. Therefore, the mounting workability is further improved.

  Here, instead of the long hole-shaped mounting holes 16, 16,..., A round hole-shaped mounting hole 26 having a long diameter D1 of FIG. It can also be. However, when the round hole-shaped mounting hole 26 having the major axis D1 of FIG. 11A as the diameter and the clip 7 shown in FIG. 5 are combined, rattling occurs due to the difference in size between the two. Since it is easy, the shape of the clip 27 is set as shown in FIG.

  That is, considering the sliding amount of the mounting hole 26 based on the sliding operation in the longitudinal direction of the weather strip 4 as described above, the shape of the leg portion 27a in the clip 27 is as shown in FIG. A shape that matches the planar shape of the portion where the circles before and after the 26 slides overlap is used. On the other hand, the shape of the head portion 27b formed integrally with the leg portion 27a has a long diameter that is large enough to be received by the round mounting hole 26 before sliding, as shown in FIG. It shall be circular. Thus, also in the clip 27 which consists of the leg part 27a and the head part 27b, the cross-sectional shape becomes a thing of a cross-sectional substantially L shape similarly to the clip 7 of FIG.

  Therefore, the combination of the round hole-shaped mounting holes 26, 26... In FIG. 13 instead of the long hole-shaped mounting holes 16 in FIG. The weather strip 4 can be attached in the same procedure as shown.

  Here, in each of the above-described embodiments, as shown in FIG. 1, the vehicle body side that receives the hood 1 when the hood 1 is closed to seal the joint between the hood 1 and the front fender 2 of the automobile. The case where the weather strip is attached to the end portion of the front fender, which is the opening edge on the opening side, is illustrated. However, as long as it is assumed that some attachment plate 3 is used for attaching the weather strip 4 as described above, the hood 1 Needless to say, the present invention can be similarly applied to the side of the open / close body such as, for example, a seal at a cowl top portion or a seal at the front end of the hood. Furthermore, it is of course possible to use a weather strip other than a hollow one.

Schematic explanatory drawing when the hood of an automobile is opened. It is a figure which shows the basic structure of the weather strip mounting structure on which this invention is based, and is an expanded sectional view which follows the AA line of FIG. The principal part disassembled perspective view of FIG. FIG. 4 is an enlarged explanatory view of a part in FIG. 3. The principal part perspective view of the attachment plate which shows the structure of the clip which is a projection part used by this invention. FIG. 6 is a view showing a weather strip mounting structure using the clip of FIG. 5 as the first embodiment of the present invention, where (A) is an explanatory view of the weather strip alone, and (B) is the mounting of the weather strip to the mounting plate. Cross-sectional explanatory drawing in a state. Sectional explanatory drawing which shows the modification of the clip shown in FIG. Cross-sectional explanatory drawing which shows another modification of the clip shown to FIG. 5 in both (A) and (B). Sectional explanatory drawing which shows the attachment structure of the weather strip which uses the clip of FIG. 5 as the 2nd Embodiment of this invention. Sectional explanatory drawing which shows the attachment structure of the weather strip which uses the clip of FIG. 5 as the 3rd Embodiment of this invention. 5A and 5B are views showing a weather strip mounting structure using the clip of FIG. 5 as a fourth embodiment of the present invention, in which FIG. 5A is an explanatory view of the weather strip alone, and FIG. Cross-sectional explanatory drawing in a state. Cross-sectional explanatory drawing which shows the attachment procedure in the attachment structure shown in FIG. It is a figure which shows the modification of the attachment structure shown in FIG. 11, (A) is explanatory drawing which shows the relationship between a round hole-shaped attachment hole and the leg part on a clip side, (B) is the same round hole-shaped attachment hole. Explanatory drawing which shows the relationship between a head on a clip side.

Explanation of symbols

1 ... Hood (Opening and closing body)
2 ... Front fender 3 ... Mounting plate 3a ... Mounting surface 4 ... Weather strip 4a, 4b ... Terminal 6 ... Mounting hole 7, 7A ... Clip (projection)
7a ... Leg 7b ... Head 8 ... Mounting base 14 ... Seal lip 16 ... Mounting hole 17 ... Endmost clip (endmost clip)
26 ... Mounting hole 27 ... Clip 27a ... Leg part 27b ... Head

Claims (8)

A structure in which a weather strip is attached via an attachment plate to an opening edge of a vehicle body side opening of an automobile or a peripheral portion of an opening / closing body that opens and closes the vehicle body side opening,
A plurality of retaining projections for fixing and holding the weather strip on the mounting surface on the mounting plate fixed to the opening edge of the opening on the vehicle body side or the periphery of the opening / closing body are arranged along the longitudinal direction of the weather strip. While
The mounting base on the weather strip side is formed with a plurality of mounting holes that are fitted and locked in a hooked relationship with the protrusion.
The protrusion is formed as a substantially L-shaped cross-section in which a head heading in the longitudinal direction of the weather strip is projected and formed at the tip of the leg standing upright from the mounting surface on the mounting plate side,
An automotive weather strip mounting structure, wherein a head protruding direction of at least one of the plurality of protruding portions is opposite to a protruding direction of the other protruding portion. The number of juxtaposed projections is at least four, and
The head projecting direction of at least two protrusions located on one end side of the protrusions side by side is directed to the terminal on the one end side, and at least located on the other end side of the protrusions side by side. 2. A weatherstrip mounting structure for an automobile according to claim 1, wherein both head projecting directions of the two projecting parts are set so as to be directed to the terminal on the other end side.   The head protrusion direction of the outermost protrusion located at either end of the protrusion juxtaposing direction is opposite to the head protrusion direction of the other protrusion, and one terminal is oriented 2. The weatherstrip mounting structure for an automobile according to claim 1, wherein the weatherstrip mounting structure is set as described above.   The protrusion direction of the heads of the protrusions in the protrusion juxtaposition direction was alternately reversed, and the head protrusion directions of the endmost protrusions located at both ends were set to face the respective terminals. The mounting structure for an automobile weather strip according to claim 1.   5. The automobile according to claim 1, wherein each of the mounting holes has a diameter smaller than a planar projection shape of the protruding portion and a size capable of receiving the leg portion of the protruding portion. Weather strip mounting structure. In the mounting structure of the weather strip for motor vehicles of Claim 3,
The mounting hole on the side of the weather strip that is to be fitted and locked to the outermost protrusion is smaller in diameter than the planar projection shape of the outermost protrusion and is large enough to accept the leg of the outermost protrusion. While being formed as
The mounting holes on the weather strip side that will be fitted and locked to each of the other projections other than the endmost projection are formed to have a size that can receive the other projections in a planar projection shape. In addition, each mounting hole is set so as to be in a catching relationship for preventing it from being detached for the first time by relative movement in the juxtaposing direction with the other projecting parts corresponding to each mounting hole being received. An automotive weather strip mounting structure.   The attachment of the weather strip for an automobile according to any one of claims 1 to 6, wherein a displacement preventing means for preventing a displacement from the attachment base portion on the weather strip side is provided at a head of each projection. Construction.   8. The weather strip according to claim 1, wherein the weather strip is hollow, and an attachment hole is formed in an attachment base portion that functions as a part of a peripheral wall forming the hollow portion. 1. A weatherstrip mounting structure for automobiles according to 1.

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