JP2008162330A - Glass run - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run capable of effectively exerting steady brace of a door glass without causing trouble on lifting of the door glass. <P>SOLUTION: The glass run 4 of an automobile door 1 is provided with a body part 40 of an approximately U shape cross section; side walls 42, 43 at an indoor side and an outdoor side; and first and second seal lips 44, 45 for sealing a peripheral edge of the door glass 3. On the indoor side side wall 42 of a vertical side part of the glass run for guiding lifting of the door glass, a sub-lip 47 extending to an intermediate part in approximately parallel to the first seal lip 44 and having a distal end positioned at the indoor side than a distal end of the first seal lip 44 and at an inner depth side of the body part 40 is provided. On an inner surface of the indoor side side wall at an inner depth side of the body part 40 than a base part of the sub-lip 47, a projection part 50 projected to a distal end direction of the sub-lip 47 and abutted on a distal end of the sub-lip when the first seal lip is bent to be abutted on the sub-lip and the first seal lip and the sub-lip are further bent is formed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a glass run attached along an inner periphery of a door frame of an automobile door.

  As shown in FIG. 3, a glass run 400 is attached to the inner peripheral side of the door frame 2 of the automobile door 1. As shown in FIG. 4, the glass run 400 includes a bottom wall 410 of the body portion 400 </ b> A having a substantially U-shaped cross section, a side wall 420 on the vehicle interior side and a side wall 430 on the vehicle exterior side, and a door glass 3 from the front end of each side wall 420, 430. The seal lips 440 and 450 that seal the peripheral part of the door from both sides are extended, and the main body part 400A is fitted to the channel part 20 formed along the inner periphery of the door frame 2. The

  In addition, the glass run 400 includes a side wall 420 or a side wall 420 on the vehicle inner side of the front and rear vertical side portions 4A along the front and rear vertical frames 2A (FIG. 3) of the door frame 2 in order to prevent the door glass 3 from swinging. , 430 is formed with a glass guide 460 that protrudes toward the side surface of the door glass 3 and that has a tip facing the surface of the door glass 3 (see, for example, Patent Document 1).

When the glass guide 460 is inserted into the main body 400A of the glass run 400 of the door glass 3, the tip of the glass guide 460 comes into contact with the vehicle inner side surface or both the inner and outer side surfaces of the door glass 3, or through the vehicle inner seal lip 440 or the like. Because of the contact with the side surface of the door glass 3, the sliding resistance at the time of raising and lowering the door glass 3 is increased, and there is a fear that the raising and lowering cannot be performed smoothly.
Further, as shown in FIG. 5, when the vehicle extends to the inner side of the vehicle inner side seal lip 440 (the vehicle inner side wall 420 side) substantially in parallel with the vehicle inner side seal lip 440 and the door glass 3 shakes greatly, the vehicle In some cases, a sub lip 470 is provided for locking the door glass 3 together with the inner seal lip 440 (see, for example, Patent Document 2).

However, even in the case where the sub lip 470 is provided, a large gap remains between the front end portion of the sub lip 470 and the vehicle interior side wall 420, and there is a problem that the steadying of the door glass 3 cannot be effectively performed. It is considered that this is because the vibration continues for a while due to the inertial force of the door glass 3 once the door glass 3 shakes greatly.
Japanese Patent Laid-Open No. 10-942 JP 2000-280755 A

  An object of the present invention is to prevent the door glass from shaking greatly and effectively prevent the door glass from shaking.

  The present invention has been made in order to solve the above-mentioned problems, and its purpose is to prevent the door glass from swinging greatly without hindering the raising and lowering of the door glass, and to effectively swing the door glass. A glass run that can be stopped is provided.

  In the following, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

  Means 1. A glass run attached along the inner periphery of a door frame of an automobile door, the body portion having a substantially U-shaped cross section, and the inner side of the body portion in a direction approaching each other from the inner side wall and the outer side wall of the main body portion. A glass run that includes first and second seal lips formed to extend to the door glass and sandwich the peripheral edge of the door glass from both the inside and outside of the vehicle when the door glass is closed, and at least guides the raising and lowering of the door glass The side wall on the vehicle inner side of the vertical side portion extends substantially in parallel with the first seal lip at the intermediate portion thereof, and the tip is located on the vehicle inner side and the back side in the main body portion with respect to the tip of the first seal lip. In the glass run including the sub lip, the inner surface of the vehicle interior side wall on the inner side of the main body part from the base part of the sub lip protrudes toward the tip of the sub lip, and The sealing lip is bent into contact with the above sub-lip, the glass run further characterized in that said first seal lip and the auxiliary lip formed a protrusion which abuts the distal end of the sub-lip when bent.

According to the means 1, the main body portion having a substantially U-shaped cross section and the first and second seal lips formed so as to sandwich the peripheral edge portion of the door glass from both the inside and outside of the vehicle when the door glass is closed. In addition, at least the side wall on the vehicle inner side of the vertical side portion of the glass run that guides the raising and lowering of the door glass extends substantially in parallel with the first seal lip at the intermediate portion, and the tip is the tip of the first seal lip. A sub lip located on the inner side of the vehicle body and on the inner side of the main body, and protrudes toward the tip of the sub lip on the inner surface of the inner wall of the inner side of the main body from the root of the sub lip. Since the bent part is in contact with the sub lip, and the first seal lip and the sub lip are bent, the protruding part that comes into contact with the tip of the sub lip is formed. Since the first seal lip, sub lip and the protruding portion come into contact with each other to stop the swing, the amplitude does not become large, and as a result, the vibration does not last long and the door glass is effectively prevented from swinging. Can do.
Further, in the state of the setting position for raising and lowering the door glass, a slight gap is formed between the first seal lip and the sub lip and between the sub lip and the projection. The sliding resistance does not increase when moving up and down, and the door glass can be moved up and down as smoothly as before.

  Mean 2. The tip of the sub lip has a bulge that bulges toward the vehicle interior side wall, and the tip of the bulge comes into contact with the protrusion when the sub lip is bent. The glass run described in 1.

  According to the above means 2, the bulging portion bulging toward the vehicle inner side wall is formed at the tip end portion of the sub lip, and the tip of the bulging portion is brought into contact with the protruding portion when the sub lip is bent. A slight gap between the sub lip and the protrusion can be further narrowed, and the operational effect of the means 1 can be further enhanced.

  Further, since the overall thickness of the sub lip is not increased, the sub lip can be deformed when the sub lip and the projecting portion come into contact with each other, and a buffering action at that time can also be achieved.

  Means 3. 3. The glass run according to means 1 or 2, wherein the protrusion is formed in a mountain shape having a convex curved surface.

  According to the means 3, the protrusion is formed in a mountain shape having a convex curved surface, so that it can move so as to slide on the surface when it comes into contact with the sub lip. The effects of means 1 and 2 can be further enhanced.

  Means 4. Means 1 is characterized in that a gap of 0.5 mm to 1.8 mm is provided between the top of the protrusion and the tip of the sub lip in the state where the door glass is raised and lowered. The glass run described.

According to the means 4, a gap of 0.5 mm to 1.8 mm is provided between the top part of the protruding part and the tip part of the sub lip in the state where the door glass is raised and lowered. The sliding resistance does not increase when the door glass is raised and lowered, and the door glass can be raised and lowered smoothly as before.
In the state where the door glass is not disposed, the distance between the first seal lip and the sub lip is 4 mm to 6 mm, and in the state where the door glass is disposed, the distance is 1.5 mm to 2.0 mm. If the projection is not provided, the door glass may swing large (about 4 mm). However, this time, the gap between the sub lip and the projection is reduced from 0.5 mm to 1.8 mm, so the door glass swings greatly. Even so, the first seal lip, the sub lip and the projecting portion come into contact with each other to stop the vibration, so that the amplitude does not become large, and as a result, the vibration does not continue for a long time, and the door glass is effectively prevented from shaking. It is possible to further enhance the operational effect of the means 1 that can be performed.

  Means 5. The glass run according to means 3, wherein the projecting portion of the mountain shape has a protruding height from the inner side wall of 0.5 mm to 1.0 mm, and the thickness thereof is substantially the same as the thickness of the inner side wall of the vehicle.

  According to the means 5, since the thickness of the projecting portion of the chevron is substantially the same as the thickness of the side wall of the vehicle interior, there is no large thickness change portion when the glass run is extruded, and it is easily manufactured. In addition, the operational effects of the means 3 can be further enhanced. In addition, the back side of a protrusion part can also be light-emitted, and a buffering effect can be obtained in the light-emitted part in that case.

  Embodiments will be described below with reference to the drawings. As shown in FIG. 3, the glass run 4 has a vertical side 4 </ b> A of the extrusion molding before and after guiding the raising and lowering of the door glass 3 and an upper side of the extrusion that receives the upper edge when the door glass 3 reaches the rising end. The part 4B is connected by a molding connection part 4C. The glass run 4 is made of EPDM rubber or the like, and each side portion has a substantially common cross-sectional shape. Further, as the automobile door 1, a front door is illustrated in FIG. 3, but a rear door or the like may be used.

  FIG. 1 shows a cross-section at the CC position of the vertical side portion 4A in FIG. 3 of the present embodiment. The vertical side portion 4A has a bottom wall 41 and opposite side walls 42 and 43 on the inside and outside of the vehicle. A main body portion 40 having a substantially U-shaped cross section, and first and second seal lips 44, 45 that are gently curved from the front ends of the side walls 42, 43 to the inner back side of the main body portion, and the front ends approach each other. I have. The side wall 42 on the vehicle inner side is formed longer than the side wall 43 on the vehicle outer side, and the first seal lip 44 is longer than the second seal lip 45 and is thick.

  A channel portion 20 having a substantially U-shaped cross section is formed on the inner peripheral side of the door frame 2, and the glass run 4 is attached by fitting the main body portion 40 to the channel portion 20. And in the vertical side part 4A before and behind the glass run 4, the door glass 3 moves up and down with the front and rear vertical edges sandwiched between the first and second seal lips 44 and 45, and in the upper side part 4B. The upper edge of the door glass 3 is inserted between the first and second seal lips 44, 45, and sealing is performed by contact between the seal lips 44, 45 and the surface of the door glass 3. In order to improve the slidability of the door glass 3, sliding is not performed on the facing surfaces of the first and second seal lips 44, 45, the inner bottom surface of the bottom wall 41, and a part of the inner surface of the side wall 43 outside the vehicle. A conductive layer 48 is formed.

The side wall 42 on the vehicle inner side of the vertical side portion 4 </ b> A of the glass run 4 extends substantially in parallel with the first seal lip 44 at the intermediate portion thereof, and the tip end is closer to the vehicle than the tip end of the first seal lip 44. A sub lip 47 is formed inside and inside the main body 40. Further, a protruding portion 50 is formed on the inner surface of the vehicle inner side wall 42 on the inner side of the main body portion 40 with respect to the root portion of the sub lip 47 so as to protrude toward the tip end portion of the sub lip 47.
The protruding portion 50 is configured to abut the tip end portion of the sub lip 47 when the first seal lip 44 is bent and comes into contact with the sub lip 47 and when the first seal lip 44 and the sub lip 47 are bent.
The sub lip 47 is slightly thinner than the general portion of the first seal lip 44 and extends substantially parallel to the first seal lip 44, and the tip of the sub lip 47 is closer to the vehicle interior than the tip of the first seal lip 44. And it is located in the back | inner side in the main-body part 40. FIG.

More specifically, the projecting portion 50 is formed in a mountain shape having a convex curved surface, and the projecting height from the vehicle interior side wall 42 is set to 1.0 mm. The protruding height is preferably set in the range of 0.5 mm to 1.5 mm.
Further, when the door glass 3 is not arranged, the distance between the first seal lip 44 and the sub lip 47 is about 5 mm, and even when the door glass 3 is arranged, the distance is about 2 mm. For this reason, if the protrusion part 50 was not provided, there existed a possibility that the door glass 3 might shake large (about 4 mm). However, since the gap between the sub lip 47 and the protrusion 50 is set to 1.0 mm this time, the first seal lip 44, the sub lip 47 and the protrusion 50 come into contact with each other even if the door glass 3 is swung greatly. Therefore, the swing of the door glass 3 can be effectively prevented without a large amplitude and as a result, the vibration does not continue for a long time. In addition, it is preferable that the clearance gap between the top part of the protrusion part 50 and the front-end | tip part of the sublip 47 is set in the range of 0.5 mm to 1.8 mm.

Note that the tip end of the first seal lip 44 is bent in a substantially square shape, and a bulging portion 443 protruding toward the side surface of the tip end portion of the sub lip 47 is formed. A notch 442 is formed in the vicinity of the base portion 441 of the first seal lip 44. The sub lip 47, the notch 442 and the protrusion 443 may or may not be formed on the upper side portion 4B of the glass run 4.
When the door glass 3 is moved up and down, the first seal lip 44 is pushed by the inner surface of the door glass 3 at the vertical side portion 4A of the glass run 4 and bent at the notch 442 forming portion and falls to the inner side of the vehicle and bulges 443 at the tip. Is close to the sub lip 47. When the door glass 3 is shaken in the vehicle width direction when the door glass 3 is raised and lowered and when the door 1 is closed, the bulging portion 443 of the first seal lip 44 pushes the sub lip 47, and both lips 44, 47 Bend inward. In this case, in the conventional structure, both the lips 44 and 47 cooperate with each other while flexing to support the door glass 3, so that the swing of the door glass 3 is suppressed and absorbed. When trying to reduce the repulsive force, the swing width of the door glass 3 increases. Therefore, in this application, in order to reduce the repulsive force of both the lips 44 and 47, and to suppress the fluctuation width in the vehicle width direction, a protrusion 50 is provided on the vehicle inner side wall 42, and the amount of movement of the door glass 3 in the vehicle width direction. Is less. In this case, since both lips 44 and 47 are bent in substantially the same direction with their base side as the center, the protrusion 442 at the tip of the first seal lip 44 and the side surface of the tip of the sub lip 47 that contacts this are almost the same. There is no relative movement and no frictional resistance or rubbing wear occurs between them.

  Further, when the door glass 3 is largely swung to the inside of the vehicle when the door is strongly closed, the door glass 3 comes into contact with the protruding portion 50 via the first seal lip 44 and the sub lip 47 and cannot swing further. In this case, most of the swinging force of the door glass 3 is absorbed by the deflection of both lips 44 and 47 before the contact, so that the reaction force acting on the door glass 3 at the time of contact is small, and the door glass after the contact. 3 swings abruptly. As a result, the amplitude does not become large and vibration does not continue for a long time, so that the door glass 3 can be effectively prevented from shaking.

  As described above in detail, the inner surface of the vehicle interior side wall 42 on the inner side of the main body portion 40 with respect to the base portion of the sub lip 47 protrudes toward the tip end portion of the sub lip 47 and the first seal lip 44 is bent. Since the protruding portion 50 that contacts the sub lip 47 and further contacts the tip of the sub lip 47 when the first seal lip 44 and the sub lip 47 are bent is formed, even if the door glass 3 swings greatly, The first seal lip 44, the sub lip 47, and the protruding portion 50 come into contact with each other to stop the swing, and the amplitude does not become large. As a result, the vibration does not continue for a long time and the door glass 3 can be effectively prevented from swinging. it can.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) As shown in FIG. 2, a bulging portion 471 that bulges toward the vehicle interior side wall 42 is formed at the distal end portion of the sub lip 47 in the same manner as the bulging portion 443 at the distal end of the first seal lip 44. It is good also as composition to do.

  In this case, when the sub lip 47 is bent, the tip of the bulging portion 471 contacts the protruding portion 50, so that a slight gap between them can be further narrowed and the overall thickness of the sub lip 47 is not increased. Therefore, the sub lip 47 can be deformed when the sub lip 47 and the protruding portion 50 come into contact with each other, and a buffering action at that time can be achieved.

  (B) In the above-described embodiment, the chevron-shaped projecting portion 50 is formed so that its thickness is substantially the same as the thickness of the vehicle interior side wall 42, and there is no large thickness change portion when the glass run 4 is extruded. However, the back side of the protrusion 50 can be thinned, and in this case, a buffering action can be obtained at the thinned portion.

  (C) In the above embodiment, EPDM rubber is used as the material of the glass run 4, but in addition to that, styrene butadiene rubber, butadiene rubber, chloroprene rubber, butyl rubber, nitrile rubber, ethylene propylene copolymer rubber, acrylic rubber Or other elastic materials having rubber-like elasticity such as olefinic thermoplastic elastomer (TPO) or soft polyvinyl chloride.

It is sectional drawing of the glass run of this embodiment, and is CC sectional view taken on the line in FIG. It is principal part sectional drawing of the glass run in another embodiment. It is a front view which shows a motor vehicle door. It is sectional drawing of the glass run of conventional embodiment, and is CC sectional view taken on the line in FIG. It is sectional drawing of the glass run of another conventional embodiment, and is CC sectional view taken on the line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Door, 2 ... Door frame, 3 ... Door glass, 4 ... Glass run, 40 ... Main part, 41 ... Bottom wall, 42 ... Car inner side wall, 43 ... Car outer side wall, 44 ... First seal lip, 45 ... second seal lip, 47 ... sub lip, 50 ... protrusion.

Claims (4)

A glass run attached along the inner periphery of a door frame of an automobile door, the body portion having a substantially U-shaped cross section, and the inner side of the body portion in a direction approaching each other from the inner side wall and the outer side wall of the main body portion. A glass run that includes first and second seal lips formed so as to sandwich the periphery of the door glass from both the inside and outside of the vehicle when the door glass is closed, and at least guides the raising and lowering of the door glass The side wall on the vehicle inner side of the vertical side portion extends substantially in parallel with the first seal lip at the intermediate portion thereof, and the tip is located on the vehicle inner side and the back side in the main body portion with respect to the tip of the first seal lip. In a glass run with a sub lip to
Projecting in the direction of the tip of the sub lip on the inner surface of the vehicle inner side wall on the inner side of the main body from the root of the sub lip, the first seal lip bends and comes into contact with the sub lip. A glass run characterized in that a protruding portion that abuts against a tip portion of the sub lip when the one seal lip and the sub lip are bent is formed.   The tip of the sub lip has a bulge that bulges toward the inner side wall of the vehicle, and the tip of the bulge comes into contact with the protrusion when the sub lip is bent. The glass run according to 1.   The glass run according to claim 1, wherein the protrusion is formed in a mountain shape having a convex curved surface.   2. A gap of 0.5 mm to 1.8 mm is provided between the top of the protrusion and the tip of the sub lip in a state where the door glass is raised and lowered. The glass run described in 1.

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