JP5670767B2 - Door glass run - Google Patents

Description

  The present invention relates to an improvement of a door glass run that is mounted on the inner periphery of a door sash in an automobile door, and that ensures sealing performance when the door glass is closed while guiding and supporting the door glass so that it can be raised and lowered.

  As is well known, in this type of door glass run structure, for example, as shown in FIG. 5 which is a sectional view of the upper side of the door sash, the side wall 51 on the indoor side, the side wall 52 on the outdoor side, and both side walls The bottom wall portion 53 connecting the portions 51 and 52 is formed in a substantially channel shape in cross section, and the seal lips 54 and 55 protrude from the tips of the respective side wall portions 51 and 52 toward the inside of the channel-shaped space. The door glass run 50 is guided and supported so as to be movable up and down in a state where the door glass run 50 is fitted and held in the door sash 56.

  When attention is paid to the corner portion formed by the side wall portion 51 and the bottom wall portion 53 on the indoor side, the corner portion 58 is locked to the bottom seal lip 57 that contacts the inner bottom surface of the door sash 56 and the stepped portion 58 of the door sash 56. Aside from the holding lip 59, a sound impact buffering lip 60 may be provided on the outer surface side of the bottom wall portion 53 for the purpose of buffering sound when the door glass G comes into contact with the bottom wall portion 53. The sound impact buffering lip 60 is set on the outer side of the bottom wall portion 53 on the indoor side of the contact position of the door glass G with the bottom wall portion 53. A predetermined gap 61 is secured between the portion 53 and the inner bottom surface of the door sash 56. Note that a door glass run having the sound-damping lip 60 is disclosed in Patent Document 1.

JP 2006-281833 A

  However, in the structure of the door glass run 50 shown in FIG. 5, since there is a sound-damping lip 60 in addition to the bottom seal lip 57 and the holding lip 59, the interior side wall 51 and the bottom wall 53 are particularly formed. The cross-sectional rigidity at the corner portion is relatively high, and a secondary problem that the assemblability of the door glass run 50 with respect to the door sash 56 becomes extremely poor occurs.

  More specifically, when the door glass run 50 is assembled to the door sash 56, the door glass run 50 is first pushed into the channel-shaped space of the door sash 56 while being elastically deformed so as to be crushed inward, and then relatively thin and rigid. The side wall 52 on the outdoor side having a low sensation is fitted so as to be seated at the normal position. At this stage, since the bottom wall portion 53 and the indoor side wall portion 51 are still in an incompletely fitted state, the indoor side wall portion 51 having a relatively thick and high rigidity is finally shown in FIG. Is pushed in the direction of the arrow Q, and the bottom wall portion 53 is brought into a normal fitting state.

  At that time, in addition to the bending reaction force of the bottom seal lip 57, the reaction force caused by the bottom impact of the sound absorbing buffer lip 60 against the inner bottom surface of the door sash 56 becomes a form that counteracts the pushing force in the direction of arrow Q. The pushing force in the Q direction is not effectively transmitted to the holding lip 59 as an insertion force. As a result, the holding lip 59 cannot get over the stepped portion 58 on the door sash 56 side, and the holding lip 59 cannot be properly locked to the stepped portion 58.

  Therefore, for example, a spatula-like jig is used as means for correctly locking the holding lip 59 to the stepped portion 58, and the corner portion formed by the indoor side wall portion 51 and the bottom wall portion 53 is inclined (in the direction of arrow R). In fact, there is no method other than pressing the door sash, and the door glass run 50 is easily assembled to the door sash 56.

  The present invention has been made paying attention to such a problem, and provides a structure with improved assemblability to a door sash with respect to a door glass run attached with a sound-damping lip as described above. .

According to the first aspect of the present invention, the side wall portion on the indoor side, the side wall portion on the outdoor side, and the bottom wall portion connecting both the side wall portions are formed in a substantially channel shape in cross section. The door glass run has a seal lip protruding from the tip toward the inside of the channel-shaped space, and guides and supports the door glass so that the door glass can be raised and lowered while being fitted and held in the channel portion of the door sash.

In addition, the slanted wall formed between the side wall and the bottom wall on the indoor side, the outer surface side of the bottom wall, and the contact position of the door glass with respect to the bottom wall And a projection that forms a gap between the bottom wall portion and the channel portion of the door sash by contacting the inner bottom surface of the channel portion of the door sash , and the indoor side wall. And an indoor side holding lip that is formed to extend on the outer surface side of the part so as to extend the oblique wall part, and is locked to the indoor side stepped part in the channel part of the door sash , and the indoor side wall part, An easily bendable portion formed as a locally reduced thickness portion whose inner surface is concavely recessed at the connecting portion with the inclined wall portion, and on the outer surface side of the inclined wall portion and on the indoor side of the projection portion The inner bottom of the channel part of the door sash And it includes a contact with the bottom sealing lip, to. And the said side wall part by the side of the room | chamber interior can be bend | folded toward the inner side of channel-shaped space from an easily bendable part.

In this case, as described in claim 2, it is assumed that the protrusion is formed at a connection portion between the bottom wall portion and the oblique wall portion.

In addition, as described in claim 3, another easy-to-bend portion may be formed at the connecting portion between the bottom wall portion and the oblique wall portion.

In this case, as described in claim 4, the another easily bendable portion is formed as a locally reduced thickness portion in which the inner surface of the connecting portion between the bottom wall portion and the oblique wall portion is recessed in a concave shape. It shall be.

Furthermore, as described in claim 5, the outdoor-side holding lip to be engaged in the stepped portion of the exterior side of the door sash on the outer surface side of the side wall portion of the exterior side may be formed to project.

In addition, as described in claim 6, the door glass run can be prevented from shrinking in the longitudinal direction, for example, in the vicinity of the easily bent portion formed at the connecting portion between the indoor side wall portion and the inclined wall portion. A metal wire for this purpose may be embedded.

Therefore, in the invention according to claim 1, when a pressing force is applied to the side wall portion on the indoor side in a state where the side wall portion on the indoor side is bent from the easily bendable portion toward the inside of the channel-shaped space, the pressing is performed. Since the force is directly transmitted to the indoor holding lip, the indoor holding lip can easily pass through the indoor stepped portion of the door sash channel without being affected by the presence of the projection on the bottom wall side. It is possible to get over. As a result, the indoor-side holding lip is correctly locked to the indoor stepped portion as soon as it gets over the indoor stepped portion.

  According to the first aspect of the present invention, the indoor-side holding lip can be easily locked to the indoor-side stepped portion without being affected by the presence of the protrusion on the bottom wall side, The assembly of the door glass run to the door sash is greatly improved.

In addition, the easy-to-bend portion is formed as a locally reduced thickness portion in which the inner surface of the connecting portion between the side wall portion on the indoor side and the inclined wall portion is recessed in a concave shape, thereby bending the side wall portion on the indoor side. In addition to being easy to bend when being bent from the easy portion toward the inside of the channel-shaped space , the bottom seal lip is formed to protrude from the inclined wall portion, thereby ensuring sealing performance.

According to invention of Claim 2, the cushioning property of the door glass run with respect to a door sash can be ensured, and generation | occurrence | production of the hitting sound at the time of door glass contact | abutting can be suppressed or relieved.

According to the third aspect of the present invention, since another bendable portion is formed at the connecting portion between the bottom wall portion and the oblique wall portion, the door glass run is bent and deformed so as to be crushed first. It becomes excellent in the insertion ease at the time of inserting in a door sash.

According to the fourth aspect of the present invention, the another bendable portion is formed as a local thickness reducing portion in which the inner surface of the connecting portion between the bottom wall portion and the inclined wall portion is recessed in a concave shape. Thus, the ease of insertion is further improved.

According to the fifth aspect of the present invention, the outdoor holding lip that is locked to the stepped portion on the outdoor side of the door sash is formed on the outer surface side of the side wall portion on the outdoor side so as to protrude into the door sash. The fitting and holding performance of the door glass run is further improved.

According to the sixth aspect of the present invention, since the metal wire is embedded in the vicinity of the easily bendable portion formed at the connecting portion between the indoor side wall portion and the inclined wall portion, the wire is embedded. The rigidity of the part is enhanced, and the pushing force of the indoor side wall can be transmitted to the indoor holding lip more reliably, and the indoor holding lip can be easily locked to the indoor stepped portion. And it becomes possible to do it more reliably.

The schematic explanatory drawing of the front door of a motor vehicle. The figure which shows the more concrete 1st form for implementing this invention, and is an expanded sectional view which follows the AA line of FIG. Explanatory drawing which shows the behavior at the time of the assembly | attachment of the door glass run shown in FIG. Cross-sectional explanatory drawing which shows an example of a door glass run provided with a sound impact buffering lip.

  1 and 2 show more specific embodiments for carrying out the present invention, FIG. 1 is a schematic explanatory view of a front door of an automobile, and FIG. 2 is an enlarged sectional view taken along line AA of FIG. Show. That is, FIG. 2 shows a sash upper side portion 3a that is formed along the roof portion on the vehicle body side in the front door 1 of FIG. 1 including the door main body 2 and the arch-shaped door sash 3 above the door waist portion 2a. The expanded sectional view of is shown. Here, the cross-sectional shape at the sash vertical side 3b is not particularly limited.

  As shown in FIG. 2, the sash upper side 3 a of the door sash 3 is formed into a predetermined cross-sectional shape by roll forming, and the groove width on the back side is larger than the groove width on the open side. A channel portion 4 that functions as a glass run fitting groove is bent. The channel portion 4 has an overhanging portion 5 on the indoor side surface of the channel portion 4 and a locking step portion 5a on the indoor side, and a very thick terminal portion 6 on the outdoor side surface. Each part 6a is formed. The door glass run 7 is fitted and held in the channel portion 4.

  As is well known, the door glass run 7 is formed in a substantially channel shape in cross section by a side wall portion 8 on the indoor side, a side wall portion 9 on the outdoor side, and a bottom wall portion 10 connecting both side wall portions 8 and 9. At the same time, the inner and outer seal lips 11 and 12 project obliquely from the front ends of the side walls 8 and 9 toward the inside of the channel-shaped space. Then, the door glass run 7 is fixed so that the indoor holding lip 22 described later is locked to the indoor locking step 5a and the outdoor holding lip 20 is locked to the outdoor locking 6a. The door sash 3 is fitted and held, and in this state, the door glass G received in the channel-shaped space of the door glass run 7 is guided and supported so as to be movable up and down, and the sealing property when the door glass G is closed is secured. Yes.

  The indoor side wall portion 8 is formed to be relatively thicker than the outdoor side wall portion 9 and the bottom wall portion 10, and similarly, the indoor side seal lip 11 is the outdoor side seal lip 12. As shown in FIG. 2, the door glass G is received in the channel-shaped space in a state of being biased toward the outdoor side. A cover lip 13 protrudes from the tip of the indoor side wall 8 in the opposite direction to the indoor seal lip 11. Similarly, the outdoor seal lip 12 extends from the tip of the outdoor side wall 9. A cover lip 14 protrudes in the opposite direction. These cover lips 13 and 14 come into pressure contact with the door sash 3 at the open end of the channel-shaped space.

  The side wall portion 9 and the bottom wall portion 10 on the outdoor side are connected to each other by a locally reduced thickness portion by the notch portion 15, while the side wall portion 8 on the indoor side and the bottom wall portion 10 are interposed between the two. Are connected to each other through the inclined wall portion 16. Both the inner and outer surfaces of the inclined wall portion 16 are inclined by a predetermined angle with respect to the bottom wall portion 10 and the indoor side wall portion 8, and the wall of the inclined wall portion 16 extends from the indoor side wall portion 8 toward the bottom wall portion 10. The thickness gradually changes so that the thickness gradually decreases. And in the connection part of the indoor side wall part 8 and the slanted wall part 16, the inner surface side is formed as a local thickness reduction | decrease part recessed concavely, and this thickness reduction | decrease part is a slanted wall part. 16 functions as an easily bendable portion 17 of the side wall portion 8 on the indoor side. That is, the wall thickness formed by the easily bendable portion 17 and the base portion of the indoor-side holding lip 22 described later is the smallest.

  Similarly, in the connection portion between the inclined wall portion 16 and the bottom wall portion 10, the minimum thickness portion of the inclined wall portion 16 is connected with a step on the inner surface side. The inner wall side is formed as a locally reduced thickness portion that is recessed in a concave shape, and this reduced thickness portion functions as an easily bendable portion 18 of the inclined wall portion 16 with respect to the bottom wall portion 10.

  A relatively thick bulging portion 19 is formed to project toward the inner bottom surface 3 b of the door sash 3 on the base side of the outdoor side wall portion 9, and on the outer surface of the outdoor side wall portion 9. A sub seal lip 21 is formed so as to project together with the holding lip 20. The outdoor holding lip 20 is locked to the outdoor locking step 6a while the sub seal lip 21 is in pressure contact with the inner surface of the channel portion 4, and the outdoor cover lip 14 described above is connected to the door sash. By press-contacting the open side edge of 3, at least the outdoor side wall 9 is fitted and held with respect to the normal position of the door sash 3.

  On the other hand, on the outer surface side of the inclined wall portion 16, the indoor side holding lip 22 protrudes obliquely downward in FIG. 2 so as to extend the outer surface as it is toward the side wall portion 8 on the indoor side, A bottom seal lip 23 is formed so as to protrude diagonally upward in FIG.

  Then, while the bottom seal lip 23 is in pressure contact with the inner bottom surface 3b of the channel portion 4, the indoor side holding lip 22 is locked to the locking step portion 5a on the indoor side, and the above described indoor cover lip 13 is provided. By press-contacting to the open side edge of the door sash 3, at least the indoor side wall 8 is fitted and held with respect to the normal position of the door sash 3.

  As is apparent from the above description, in addition to the reaction force based on the bending deformation of the bottom seal lip 23, the reaction force based on the deformation deformation of the cover lips 13 and 14 on the indoor side and the outdoor side is also received, and the outdoor holding The lip 20 is locked to the outdoor locking stepped portion 56a and the indoor holding lip 22 is locked to the locking stepped portion 5a of the indoor side in a so-called catching relationship. Become.

  The bottom seal lip 23 is located on the outer surface side of the bottom wall portion 10 and on the indoor side of the contact position of the door glass G with the bottom wall portion 10, more specifically on the outer surface side of the bottom wall portion 10. The sound absorbing buffer lip 24 as a protruding portion standing upright from the bottom wall portion 10 is bead-shaped at a portion close to the portion, that is, a position corresponding to a connecting portion between the inclined wall portion 16 and the bottom wall portion 10 on the indoor side. Protrusions are formed. The sound impact buffer lip 24 has a function of suppressing or mitigating the occurrence of sound when the door glass G abuts against the bottom wall portion 10. By the presence of the sound impact buffering lip 24 and the bulging portion 19 described above, a predetermined gap 25 is secured between the bottom wall portion 10 and the inner bottom surface 3 b of the door sash 3.

  However, in the normal fitting state of the door glass run 7 with respect to the door sash 3, as described above, the outdoor holding lip 20, the indoor holding lip 22, both the cover lips 13, 14 and the bottom seal lip 23 are bent. Since it is elastically fitted and supported with a reaction force based on deformation, the bulging portion 19 and the sound impact buffering lip 24 are set so as not to contact the inner bottom surface 3b of the door sash 3 in terms of design.

  As is apparent from FIG. 2, the door glass run 7 itself has a longitudinally long portion at the connecting portion between the indoor side wall portion 8 and the inclined wall portion 16 and in the immediate vicinity of the easy bending portion 17 to prevent the door glass run 7 itself from shrinking. A metal wire 26 is embedded along the direction. Similarly, a metal wire 27 is embedded along the longitudinal direction in a position corresponding to the base portion of the outdoor holding lip 20 in the outdoor side wall 9.

  Here, the door glass run 7 itself is formed of, for example, an olefin-based thermoplastic elastomer called TPO, specifically, a thermoplastic elastomer obtained by blending polypropylene (PP) with EPDM.

  Therefore, in fitting and holding the door glass run 7 thus configured to the door sash 3, as shown in FIG. 3 in addition to FIG. 2, the door glass run 7 is first elastically deformed so as to be crushed inward. The sash 3 is pushed into the channel-shaped space, and then the outer side wall 9 having a relatively thin wall thickness and low rigidity is fitted so as to be seated at the normal position. That is, while the bulging portion 19 is abutted against the inner bottom surface 3 b of the door sash 3, the outdoor holding lip 20 is locked to the locking step-like portion 6 a on the outdoor side, and the cover lip 14 on the outdoor side is connected to the channel portion 4. Lock to the opening edge. At this stage, the bottom wall portion 10 including the inclined wall portion 16 and the indoor side wall portion 8 are still in an incompletely fitted state, and in particular, the indoor side retaining lip 22 has a locking stepped portion on the indoor side. It is not in a properly locked state with respect to 5a.

  Therefore, as shown in FIG. 3, on the premise that the bottom wall portion 10 and the oblique wall portion 16 are in an incompletely fitted state, the indoor side wall portion 8 is connected to the oblique wall portion 16. A certain easy bending portion 17 is bent and displaced inward of the channel-shaped space of the door glass run 7 itself. That is, as shown in FIG. 3, the indoor side wall portion 8 is once bent so as to be away from the overhanging portion 5 on the door sash 3 side to have an oblique posture. Then, a pushing force F is applied in the longitudinal direction in the cross section of the indoor side wall 8 while the indoor side wall 8 remains in an oblique posture, and the pushing force F is directly applied to the inclined wall 16. In this way, the pushing force F applied by the side wall 8 on the indoor side is effectively transmitted to the inclined wall 16, and the inclined wall 16 is pushed in while the bottom seal lip 23 is further greatly deformed and deformed. The indoor-side holding lip 22 that protrudes from the inclined wall portion 16 easily climbs over the indoor-side locking stepped portion 5a, and correctly engages the indoor-side locking stepped portion 5a with a relationship of catching. Will be locked. Particularly, the rigidity is enhanced by embedding a metal wire 26 in the vicinity of the bendable portion 17 in advance, and the pushing force F applied to the indoor side wall portion 8 is applied to the inclined wall portion 16 and the chamber. It becomes easy to convey to the inner holding lip 22.

  Then, after returning the side wall 8 on the indoor side in the direction of arrow M in FIG. 3 so as to follow the overhanging portion 5, the indoor side cover lip 13 is locked to the opening edge of the channel portion 4. The correct fitting and holding state as shown in FIG. 2 is obtained.

  As described above, according to the present embodiment, even when the sound absorbing buffer lip 24 protrudes from the bottom wall portion 10 as a protrusion, the inner side wall portion 8 is bent from the bendable portion 17 to apply force. As a result, the slanted wall portion 16 and the indoor side holding lip 22 can be easily placed in the correct positions without causing the hitting sound absorbing lip 24 to become an obstacle, and the assemblability of the door glass run 7 with respect to the door sash 3 is extremely high. It will be good.

DESCRIPTION OF SYMBOLS 3 ... Door sash 5a ... Locking step part on the indoor side 6a ... Locking step part on the outdoor side 7 ... Door glass run 8 ... Side wall part on the indoor side 9 ... Side wall part on the outdoor side 10 ... Bottom wall part 11 ... Chamber Inner seal lip 12 ... Outdoor seal lip 16 ... Slanted wall portion 17 ... Easy bending portion 18 ... Easily bent portion 20 ... Outdoor holding lip 22 ... Indoor holding lip 23 ... Bottom seal lip 24 ... Sound cushioning lip (protrusion)
25 ... Gap 26 ... Wire G ... Door glass

Claims (6)

The side wall portion on the indoor side, the side wall portion on the outdoor side, and the bottom wall portion connecting both side wall portions are formed in a substantially channel shape in cross section, and from the tip of each side wall portion to the inside of the channel-shaped space A seal lip projecting toward the door sash , and a door glass run that guides and supports the door glass so that it can be raised and lowered while being fitted and held in the channel portion of the door sash,
An oblique wall formed between the indoor side wall and the bottom wall;
It is formed on the outer surface side of the bottom wall portion and protrudes to the indoor side from the contact position of the door glass with respect to the bottom wall portion, and comes into contact with the inner bottom surface of the channel portion of the door sash , A projection that forms a gap between the door sash and the channel ,
An indoor side holding lip that is formed to protrude on the outer surface side of the indoor side wall part so as to extend the oblique wall part and is locked to the indoor side stepped part in the channel part of the door sash;
An easily bendable portion formed as a local thickness-reducing portion whose inner surface is recessed in a concave shape at a connection portion between the side wall portion and the oblique wall portion on the indoor side;
A bottom seal lip that is formed on the outer surface side of the slanted wall portion and protrudes on the indoor side of the projection, and contacts the inner bottom surface of the channel portion of the door sash;
With
The door glass run characterized in that the indoor side wall portion can be bent from the bendable portion toward the inside of the channel-shaped space. The door glass run according to claim 1, wherein the projection is formed at a connection portion between the bottom wall portion and the oblique wall portion . The door glass run according to claim 2, wherein another bendable portion is formed at a connection portion between the bottom wall portion and the oblique wall portion . The said another bendable part is formed as a local thickness reduction | decrease part in which the inner surface of the connection part of a bottom wall part and a slanting wall part was dented in concave shape . Door glass run. 5. The door glass run according to claim 4, wherein an outdoor side holding lip that is engaged with a stepped part on the outdoor side of the door sash is formed on the outer surface side of the outdoor side wall part . Any one of the preceding claims, characterized in that the indoor side of the side wall portion and the slant wall section and the metal wire in proximity to the bent easily portion formed in the connecting portion of the are embedded Door glass run as described in.

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