JP2011143918A - Core metal for weatherstrip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide core metal having high rigidity even when thinly formed, for firmly installing a weatherstrip in a flange part, without being easily deformed. <P>SOLUTION: This core metal is embedded in a cross-sectional substantially U-shaped installation base part 11 for constituting the weatherstrip 10 installed in the flange part F formed along a peripheral edge part or a door peripheral edge part of an opening part formed in a body of an automobile, and has the innermost wall part 3 and left and right sidewall parts 4 for connecting a large number of paper strip pieces 7 via a slit S similarly in a cross-sectional substantially U shape. A rugged part 8 having a linear or dotted reinforcing recessed part 8a or a projection part 8b or having the both, is formed in large numbers over a part or the whole of the innermost wall part 3 and the left and right sidewall parts 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a core bar embedded in a weather strip for automobiles.

  This will be described with reference to FIGS. A weather strip 20 is attached to the door opening, the trunk room opening, or the door peripheral edge formed in the body of the automobile along the peripheral edge. The weather strip 20 has a substantially U-shaped cross section that is integrally formed with a seal portion 23 that elastically contacts the door panel or the trunk lid T, and is assembled to the flange portion F formed on the body panel B or the door peripheral portion. The mounting base 22 is provided. In order to increase the clamping force with respect to the flange portion F, a cored bar 21 having a slit S is normally embedded in the mounting base portion 22.

  In recent years, thinning of the cored bar 21 has been promoted in response to the trend of lighter automobiles. By forming the metal core 21 thin, it is possible to reduce the weight of the weather strip 20 in which the metal core 21 is embedded and the automobile to which the weather strip 20 is attached.

  However, although the weight can be reduced by reducing the thickness of the cored bar 21, the rigidity is lowered and the assembly force to the flange portion F is lowered. Accordingly, there is a risk that the weather strip 20 is displaced from the flange portion F or even falls off.

  Moreover, if the rigidity of the core bar 21 is insufficient, the rubber material may be deformed and caught when inserted into an extruder for extrusion molding, and the extrusion may not be smoothly performed. There is a problem that it is easy to bend. In addition, there is a problem in that it is easily deformed by an unexpected external force after extrusion.

  The present invention has been devised in view of these points, and provides a core bar that has high rigidity even when formed thin, can firmly attach a weather strip to a flange portion, and does not easily deform. The task is to do.

Definition of terms A closed perimeter is a circle, ellipse, or 3-n square.

This will be described with reference to FIG. 1 and FIGS. The metal strip 1 for weather strips according to claim 1 and claim 2 has a weather strip 10 attached to a flange portion F formed along the peripheral edge portion of the opening or the peripheral edge portion of the door formed in the body of the automobile. It is embedded in a mounting base portion 11 having a substantially U-shaped cross section, and includes a back wall portion 3 and left and right side wall portions 4 that are also substantially U-shaped in cross section and in which a large number of strip pieces 7 are connected via slits S.

Further, the metal core 1 according to claim 1 is a concavo-convex portion 8 having a linear or dot-shaped reinforcing concave portion 8a or convex portion 8b or both over a part or all of the back wall portion 3 and the left and right side wall portions 4. Are formed in a large number.

Further, the metal core 1 according to claim 2 includes a dot-shaped reinforcing concave portion 8a or a convex portion 8b in the shape of a line or a closed peripheral view over the whole or a part of the back wall portion 3 and the left and right side wall portions 4 . It is set as the structure which formed many uneven | corrugated | grooved parts 8 which were combined.

  The metal strip 1 for a weather strip according to claim 3 is a cross-sectional view that constitutes a weather strip 10 that is attached to a flange portion F formed along a peripheral portion of an opening formed in a body of an automobile or a peripheral portion of a door. A core metal body 2 comprising a back wall portion 3 and left and right side wall portions 4 embedded in a U-shaped mounting base 11 and having a substantially U-shaped cross section and a large number of strip pieces 7 connected through slits S. Prepare.

  This metal core 1 has a concave or convex portion 8 having a linear or planar elliptical dot-shaped reinforcing concave portion 8a or convex portion 8b or both over part or all of the back wall portion 3 and the left and right side wall portions 4. A large number of structures are formed. In addition, a large number of the concave and convex portions 8 having both the reinforcing concave portion 8a and the convex portion 8b or both are formed, and the orientation of the plane ellipse is set so that the major axis thereof is parallel to the short direction of the core metal body 2. Yes.

The metal strip 1 for a weather strip according to claim 4 is a cross-sectional view that constitutes a weather strip 10 that is attached to a flange portion F formed along a peripheral portion of an opening formed in a body of an automobile or a peripheral portion of a door. A core metal body 2 comprising a back wall portion 3 and left and right side wall portions 4 embedded in a U-shaped mounting base 11 and having a substantially U-shaped cross section and a large number of strip pieces 7 connected through slits S. Prepare.

The cored bar 1 is a concavo-convex part having a linear or planar elongated polygonal dot-shaped reinforcing concave part 8a or convex part 8b or both over part or all of the back wall part 3 and the left and right side wall parts 4. 8 is formed in a large number. Further, the reinforced concave portion 8a or the convex portion 8b or a number of concave and convex portions 8 having both are formed, and the orientation of the plane elongated polygon is set so that the major axis is parallel to the short direction of the core metal body 2 is doing.

The metal strip 1 for weather strip according to claim 5 is a cross-sectional view constituting a weather strip 10 attached to a flange portion F formed along a peripheral edge portion of an opening or a door peripheral portion formed in a body of an automobile. A core metal body 2 comprising a back wall portion 3 and left and right side wall portions 4 embedded in a U-shaped mounting base 11 and having a substantially U-shaped cross section and a large number of strip pieces 7 connected through slits S. Prepare.

This metal core 1 has a concave or convex portion 8 having a linear or planar elliptical dot-shaped reinforcing concave portion 8a or convex portion 8b or both over part or all of the back wall portion 3 and the left and right side wall portions 4. A large number of structures are formed. Further, the reinforcing recess 8a or convex portion 8b or to form a number of uneven portions 8 which combines both, the orientation of the flat oval shape, as the major axis is parallel to the short direction of the core metal body 2 When the set reinforcing concavo-convex groups are provided in at least two rows in parallel and the reinforcing concavo-convex portions of the adjacent first reinforcing concavo-convex group (G1) and second reinforcing concavo-convex group (G2) are viewed from a direction perpendicular to the major axis. It overlaps .

The metal strip 1 for a weather strip according to claim 6 is a cross-sectional view constituting a weather strip 10 attached to a flange portion F formed along a peripheral edge portion of an opening or a door peripheral portion formed in an automobile body. A core metal body 2 comprising a back wall portion 3 and left and right side wall portions 4 embedded in a U-shaped mounting base 11 and having a substantially U-shaped cross section and a large number of strip pieces 7 connected through slits S. Prepare.

The cored bar 1 is a concavo-convex part having a linear or planar elongated polygonal dot-shaped reinforcing concave part 8a or convex part 8b or both over part or all of the back wall part 3 and the left and right side wall parts 4. 8 is formed in a large number. Further, the reinforcing recess 8a or convex portion 8b or to form a number of uneven portions 8 which combines both, the orientation of the planar hight polygonal, its long axis is parallel to the short direction of the core metal body 2 The reinforcing concavo-convex groups set in this way are provided in at least two rows in parallel, and the reinforced concavo-convex groups of the adjacent first reinforcing concavo-convex group (G1) and second reinforcing concavo-convex group (G2) are arranged in a direction perpendicular to the major axis. It is overlapped when seen .

The metal strip 1 for a weather strip according to claim 7 and claim 8 includes a weather strip 10 attached to a flange portion F formed along a peripheral portion of an opening formed in a body of an automobile or a peripheral portion of a door. A core composed of a back wall portion 3 and left and right side wall portions 4 embedded in a mounting base portion 11 having a substantially U-shaped cross section and having a substantially U-shaped cross-section, and a large number of strip pieces 7 connected through slits S. A gold body 2 is provided.

And the metal core 1 of Claim 7 is the unevenness | corrugation which combined the dot-shaped reinforcement recessed part 8a or convex part 8b of a linear or plane ellipse shape over both the back wall part 3 and the side wall part 4, or the whole. In this configuration, a large number of portions 8 are formed. In addition, the linear or planar elliptical direction of the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both has a long axis inclined with respect to the direction of the core metal body 2 and is adjacent. It is set as the structure which has arrange | positioned the direction of the linear or planar ellipse shape of the uneven | corrugated | grooved part 8 which has both the reinforcement recessed part 8a or the convex part 8b, or both in the mutually reverse direction.

Further, the metal core 1 according to claim 8 has the dot-shaped reinforcing concave portion 8 a or the convex portion 8 b in the form of a line or a plane long thin polygon over the whole or part of the back wall portion 3 and the side wall portion 4. Further, a large number of uneven portions 8 are formed. In addition, the direction of the linear or planar long polygonal shape of the concavo-convex portion 8 having both the reinforcing concave portion 8a or the convex portion 8b or both, the major axis of which is inclined with respect to the direction of the core metal body 2, and It is set as the structure which arrange | positioned the linear or planar elongate polygonal direction of the uneven | corrugated | grooved part 8 which has the adjacent reinforcement recessed part 8a or the convex part 8b, or both in the mutually reverse direction.

A weatherstrip metal core 1 according to a ninth aspect is the invention according to any one of the first to eighth aspects, wherein the concave and convex portions 8 having the reinforcing concave portions 8a or the convex portions 8b or both are provided on the left and right side wall portions 4. It is only formed.

The metal strip 1 for weather strip according to claim 10 is the invention according to any one of claims 1 to 8 , wherein the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both are connected to the back wall portion 3 and The left and right side wall portions 4 are formed only at the bent portions 5 that are adjacent to each other.

The metal strip 1 for weather strips according to claim 11 is the metal core for weather strips according to any one of claims 1 to 8 , wherein the linear shape is a curve.

The core 1 for weatherstrip according to claim 1 or 2 is a metal core having a back wall portion 3 and left and right side wall portions 4, partly or entirely of a linear or flat closed outer peripheral shape. Since the dot-shaped reinforcing concave portion 8a or the convex portion 8b or a large number of concave and convex portions 8 having both are formed, the rigidity of the cored bar 1 can be increased. Thereby, the assembly | attachment force with respect to the flange part 7 can be raised, Therefore The situation that the weather strip 10 slip | deviates or falls can be prevented beforehand. In addition, deformation during insertion into the extruder, bending due to rubber pressure, and deformation due to external force after extrusion can be prevented.

  In addition, by forming the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both, it is possible to suppress the formation of an irregular pattern on the surface of the weather strip 10 and to improve the appearance. Can be achieved. That is, on the surface of the weather strip 10, the portion where the slit S of the core 1 embedded therein is thin is thin and an uneven pattern is easily formed. However, in the present invention, a large number of reinforcing uneven portions 8 are formed. Therefore, the overall thickness is substantially uniform, and the reinforcing concavo-convex portion 8 is formed even when it covers the slit S. Therefore, it is difficult to form an irregular concavo-convex pattern.

Furthermore, since the concavo-convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both are in the form of dots in the form of a line or a plane outside the outer periphery , not only the entire core metal 1 but also only a portion requiring high rigidity. It can be formed in a limited manner.

The weatherstrip metal core 1 according to claims 3 and 4 exhibits the same effects as the inventions according to claims 1 and 2 . Further, a dot-shaped reinforcing concave portion 8a or convex portion 8b having a linear shape, a planar elliptical shape, or a planar long and thin polygonal shape over a part or the whole of the back wall portion 3 and the left and right side wall portions 4 constituting the metal core body 2. Alternatively, a large number of concavo-convex portions 8 having both of them are formed, and the direction of the reinforcing concave portion 8a or the convex portion 8b or the concavo-convex portion 8 having both is linear, planar elliptical shape, or planar elongated polygonal shape. Is set to be parallel to the short direction of the core metal body 2, the deformation of the core metal 1 can be more effectively prevented.

That is, the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both are linear, planar elliptical shape or planar elongated polygonal shape, and the major axis of the elliptical shape is the short direction of the core metal body 2 Is set so as to be parallel to the reinforcing concave portion 8a, the convex portion 8b, or the concave-convex portion 8 having both, extending in the long (long side) direction of each strip piece 7 (the short direction of the core metal body 2). It is to be formed as follows. Each of the strips 7 is formed in a substantially independent laterally long shape by the slit S, so that the long side is easily deformed. However, the concave and convex portions 8 having the reinforcing concave portions 8a or the convex portions 8b or both are provided in the longitudinal direction of the respective strips 7. By forming so as to extend along the longitudinal direction, it is possible to form the concavo-convex portion 8 having the reinforcing concave portion 8a or the convex portion 8b or both over a longer range along the longitudinal direction of each strip 7. Thereby, it can prevent effectively that the long side of the strip piece 7 deform | transforms.

The weatherstrip metal core 1 according to claims 5 and 6 exhibits the same effects as the inventions according to claims 1 to 4 . Further, a dot-shaped reinforcing concave portion 8a or convex portion 8b having a linear shape, a planar elliptical shape, or a planar long and thin polygonal shape over a part or the whole of the back wall portion 3 and the left and right side wall portions 4 constituting the metal core body 2. Alternatively, a large number of concavo-convex portions 8 having both of them are formed, and the direction of the reinforcing concave portion 8a or the convex portion 8b or the concavo-convex portion 8 having both is linear, planar elliptical shape, or planar elongated polygonal shape. Is set to be parallel to the short direction of the core metal body 2, the deformation of the core metal 1 can be more effectively prevented.

That is, the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both are linear, planar elliptical shape or planar elongated polygonal shape, and the major axis of the elliptical shape is the short direction of the core metal body 2 Is set so as to be parallel to the reinforcing concave portion 8a, the convex portion 8b, or the concave-convex portion 8 having both, extending in the long (long side) direction of each strip piece 7 (the short direction of the core metal body 2). It is to be formed as follows. Each of the strips 7 is formed in a substantially independent laterally long shape by the slit S, so that the long side is easily deformed. However, the concave and convex portions 8 having the reinforcing concave portions 8a or the convex portions 8b or both are provided in the longitudinal direction of the respective strips 7. By forming so as to extend along the longitudinal direction, it is possible to form the concavo-convex portion 8 having the reinforcing concave portion 8a or the convex portion 8b or both over a longer range along the longitudinal direction of each strip 7. Thereby, it can prevent effectively that the long side of the strip piece 7 deform | transforms.

Further, the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both has a planar elliptical shape or planar elongated polygonal shape, and the major axis of the elliptical shape or planar elongated polygonal shape is the core metal body. 2 provided at least two rows of reinforcing concavo-convex groups set so as to be parallel to the short direction, and the reinforcing concavo-convex groups of the adjacent first reinforcing concavo-convex group (G1) and second reinforcing concavo-convex group (G2), It overlaps when viewed from the direction perpendicular to the long axis. This allows, along with arranging the uneven portion 8 which combines a plurality of reinforcing recesses 8a or projections 8b or both along the short direction of the strips 7 (the longitudinal direction of the core metal body 2), each of the reinforcing recess 8a or The protrusion 8b or the end of the concavo-convex part 8 that combines both and the adjacent reinforcing recess 8a or the protrusion 8b or the end of the concavo-convex part 8 that combines both are sufficiently along the short direction of the strip 7 Can be overlapped. Furthermore, the concave and convex portion 8 having both the concave portion 8a or the convex portion 8b or both reinforcements can be arranged over the entire length in the longitudinal direction of each strip piece 7, and the strip piece 7 and the cored bar 1 are more effectively deformed. Can be prevented.

The weatherstrip core 1 according to claims 7 and 8 also exhibits the same effects as the inventions according to claims 1 and 4 . Further, the direction of the linear or planar elliptical shape or planar elongated polygonal shape of the concavo-convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both is inclined with respect to the orientation of the core metal body 2 with its long axis. In addition, since the adjacent reinforcing concave portions 8a or convex portions 8b or the concave and convex portions 8 having both of them are arranged in directions opposite to each other in the linear, planar elliptical shape, or planar elongated polygonal shape , the core metal 1 The external force acting on is easily dispersed. Therefore, it is possible to prevent stress from concentrating on a specific location and to prevent the occurrence of plastic deformation.

  Further, with the above-described configuration, it is possible to more effectively suppress the formation of an irregular pattern on the surface of the weather strip 10. This is because the reinforcing concave portion 8a or the convex portion 8b or the concave and convex portions 8 having both are arranged in opposite directions, so that the thin portion of the weather strip 10 is difficult to be formed.

The metal strip 1 for weather strips according to claim 9 exhibits the same effects as the inventions according to claims 1 to 8 . In addition, since the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both are formed only on the left and right side wall portions 4, formation on the back wall portion 3 can be avoided, and the manufacturing cost can be reduced. .

  In addition, the structure which forms the uneven | corrugated | grooved part 8 which has both the reinforcement recessed part 8a or the convex part 8b, or both only in the side wall part 4 has the said uneven | corrugated | grooved part 8a or the convex part 8b or the uneven | corrugated | grooved part 8 which has both both linear or dot This is because the size is large enough to be formed on the back wall 3 and the side wall 4. For example, in the configuration in which one straight concave portion or convex portion or an uneven portion having both is formed in the short direction of the core metal 1, the configuration as in the present invention cannot be obtained.

The weatherstrip core 1 according to the tenth aspect exhibits the same effects as the inventions according to the first to eighth aspects. In addition, the concave and convex portion 8 having both the reinforcing concave portion 8a and the convex portion 8b or both are formed only in the bent portion 5 where the back wall portion 3 and the left and right side wall portions 4 are adjacent to each other. The rigidity of the part 5 can be increased with emphasis, and the weather strip 10 after being bent into a substantially U-shaped cross section can be prevented from opening back to its original shape. Moreover, the assembly | attachment force with respect to the flange part 7 can be raised.

The metal strip 1 for weather strips according to claim 11 exhibits the same effects as the inventions according to claims 1 to 8 . In addition, since the concave and convex portions 8a, the convex portions 8b, or the concave and convex portions 8 having both of them are curved, even if they are linear, a plurality of reinforcing portions can be intertwined in a complicated manner, and the strength of the core metal can be increased. Can be increased.

It is a side view which shows the motor vehicle which attached the weather strip which embed | buried the metal core. FIG. 2 is a cross-sectional view taken along line XX in FIG. 1, showing a state where a weather strip having a core metal embedded therein is attached to a flange portion. It is an expanded view which shows the metal core which concerns on a prior art example. It is an expanded view which shows 1st embodiment of the metal core which concerns on this invention. It is the YY sectional view taken on the line of FIG. It is an expanded view which shows the 1st example of 2nd embodiment of the metal core which concerns on this invention. It is an expanded view which shows the 2nd example of 2nd embodiment of the metal core which concerns on this invention. It is an expanded view which shows 3rd embodiment of the metal core which concerns on this invention. It is an expanded view which shows the 1st example of 4th embodiment of the metal core which concerns on this invention. It is an expanded view which shows the 2nd example of 4th embodiment of the metal core which concerns on this invention. It is an expanded view of the metal core which made the reinforcement uneven | corrugated part the wave form.

  1st Embodiment of the metal core 1 for weather strips which concerns on this invention is shown in FIG.1, FIG.2, FIG.4 and FIG. The metal core 1 is embedded in a mounting base 11 having a substantially U-shaped cross section constituting a weather strip (opening trim) 10 that is mounted along a peripheral edge of a trunk room opening formed in a body of an automobile. . The weather strip 10 is integrally formed with the mounting base 11 and includes a seal portion (hollow seal portion) 12 that elastically contacts the trunk lid T, and a lip portion 14 that elastically contacts the trim portion 13 and the body panel B.

The metal core 1 has a substantially U-shaped cross section, like the mounting base 11, and includes a back wall 3 and a left and right side wall 4 in which a number of strips 7 are connected via a slit S. Sa is a connecting portion in which the slits S are not provided to connect the adjacent strip pieces 7 and 7, and may be thinner than the strip pieces 7. Further, in FIG. 4, two connecting portions Sa are provided in the vicinity of both terminals in the longitudinal direction of the strip 7, but the present invention is not limited to this and may be one. In this case, the number may be one in the vicinity of the center or one in the position slightly shifted from the vicinity of the center toward the terminal. Then, over the entire back wall portion 3 and the left and right side wall portions 4, the reinforcing irregularities 8 having a flat circular shape and a depth of 0.05 mm to 0.4 mm, preferably 0.1 to 0.2 mm, are evenly distributed. A large number of dots are formed (in plan view, circular) . In FIG. 5, a large number of reinforcing concavo-convex portions 8 include reinforcing concave portions 8 a and reinforcing convex portions 8 b, and both are alternately formed. Here, the multi-dot shape may be not only a circular shape in a plan view but also a polygonal shape in a plan view such as a triangle, a quadrangle, a pentagon, or a hexagon. Further, the plurality of shapes described above may be mixed instead of a dot having a single shape in plan view.

  Since the weatherstrip core 1 according to the present embodiment can increase the assembling force with respect to the flange portion 7, it is not displaced from the flange portion 7 or dropped off after being attached. Further, when extruding the weather strip 10 with the metal core 1, deformation when inserted into an extruder, bending due to rubber pressure during extrusion, and deformation due to external force after extrusion are prevented. Can do. In addition, by forming the reinforcing concavo-convex portion 8, it is possible to suppress the formation of an irregular concavo-convex pattern on the surface of the weather strip 10, and to improve the appearance.

  Further, in the present embodiment, the position of the reinforcing uneven portions 8 in the short direction is arranged in two rows in the reinforcing group G composed of the plurality of reinforcing uneven portions 8 in the short direction of each strip 7 (long direction of the cored bar 1). They are staggered so that they are staggered. By doing so, the rigidity of each strip 7 is increased and the deformation of the cored bar 1 is more effectively prevented.

In addition, in this embodiment, although the reinforcement uneven | corrugated part 8 is made into the plane perfect circle shape, it can replace with this and can be made into a plane ellipse shape. Similarly, when the reinforcing uneven portion 8 is a polygon in plan view, it is not a regular triangle, a regular tetragon, a regular pentagon, a regular hexagon, or the like that is long in one direction. Also good. Moreover, it can also form partially instead of whole.

  Two examples of the second embodiment of the core 1 for weatherstrip according to the present invention are shown in FIGS. The cored bar 1 of FIG. 6 in the first example is embedded in a mounting base 11 having a substantially U-shaped cross section of a weather strip 10 mounted along the peripheral edge of a door opening formed in the body of an automobile. is there. The core metal 1 also has a core metal body 2 having a substantially U-shaped cross section and comprising a back wall portion 3 and a plurality of left and right side wall portions 4 to which a large number of strips 7 are connected via slits S.

  And this core metal 1 is the planar ellipse shape over the whole back wall part 3 and the right and left side wall part 4, and 0.05-0.4mm in depth, Preferably 0.1-0.2mm reinforcement uneven | corrugated part 8 Are formed in a number of dots. Further, the direction of the planar elliptical shape of the reinforcing concavo-convex portion 8 is set so that its long axis is parallel to the short direction of the core metal body 2.

  The weatherstrip metal core 1 according to this embodiment exhibits the same effects as the metal core 1 according to the first embodiment. Since the reinforcing concavo-convex portion 8 has a planar elliptical shape and is disposed in the above-described direction, deformation of the cored bar 1 can be more effectively prevented. That is, since the reinforcing ellipsoidal portion 8 having a planar ellipse shape is arranged so as to extend along the longitudinal direction of each strip 7, the reinforcing irregularity portion 8 can be set at a longer distance along the longitudinal direction. . Thereby, the rigidity of the long side of the strip piece 7 can be improved more effectively, and the deformation | transformation of the said long side which is easy to deform | transform can be prevented.

Moreover, in this embodiment, the reinforcement group comprised by the some reinforcement uneven | corrugated | grooved part 8 is provided in two rows along the short direction (long direction of the metal core 1) of the strip piece 7, and 1st reinforcement group G1 and 1st Two reinforcing groups G2 and the ends of the reinforcing concavo-convex portions 8 of the adjacent first reinforcing group G1 and the reinforcing concavo-convex portions of the second reinforcing group G2 are overlapped (in FIG. 6, symbol L1 indicates an overlap). Amount). Thereby, the reinforcement uneven | corrugated | grooved part 8 is formed over the full length of the longitudinal direction of each strip piece 7, the longitudinal rigidity is improved, and the deformation | transformation of the long side of each strip piece 7 is prevented more effectively.

  In the case of the second example, as shown in FIG. 7, the direction of the planar elliptical shape of the reinforcing concavo-convex portion 8 is the row G1 in which the major axis of the ellipse is the same as the direction of the core metal body 2, and the direction perpendicular thereto. A configuration in which the columns G2 are alternately arranged is also included.

  FIG. 8 shows a third embodiment of the weatherstrip core 1 according to the present invention. The core metal 1 is characterized in that a large number of reinforcing concavo-convex portions 8 are formed in a dot shape only on the left and right side wall portions 4 in a planar elliptical shape and having a depth of 0.05 mm to 0.4 mm, preferably 0.1 to 0.2 mm. Is. Further, the direction of the planar elliptical shape of the reinforcing concavo-convex portion 8 is inclined so that the major axis thereof is approximately 45 ° with respect to the direction of the core metal body 2, and the planar elliptical shape of the adjacent reinforcing concavo-convex portion 8 is The orientation is arranged in the opposite direction. Note that the inclination angle of the reinforcing uneven portion 8 is not limited to approximately 45 °.

  With such a configuration, the external force acting on the cored bar 1 can be effectively dispersed by the reinforcing concavo-convex portion 8. Thereby, it can prevent that stress concentrates on a specific location and can prevent that the metal core 1 deforms plastically.

  Further, since the reinforcing concavo-convex portions 8 are arranged in opposite directions, it is difficult to form a thin portion on the weather strip 10, so that it is effective to form an irregular concavo-convex pattern on the surface of the weather strip 10. Can be suppressed.

  Further, in the present embodiment, the reinforcing group G is formed by a plurality of reinforcing uneven portions 8 formed in the longitudinal direction of each strip 7, and the reinforcing uneven portion 8 of each reinforcing group G and the reinforcing group G adjacent thereto are reinforced. The end portions of the concavo-convex portion 8 are overlapped (in FIG. 8, symbol L2 indicates the overlap amount). By carrying out like this, the reinforcement uneven | corrugated part 8 is formed over the full length of the longitudinal direction of each strip piece 7, and the rigidity is improved more effectively. Thereby, deformation of each strip piece 7 and the cored bar 1 can be prevented more effectively.

  9 and 10 show a fourth embodiment of a weatherstrip core 1 according to the present invention. The core bar 1 of FIG. 9 in the first example is characterized by a plane ellipse shape, a reinforcing concavo-convex portion 8 having a depth of 0.05 mm to 0.4 mm, preferably 0.1 to 0.2 mm, and the left and right walls 3. The side wall portions 4 are formed only in the bent portions 5 that are adjacent to each other.

  And the direction of the plane ellipse shape of the reinforcement uneven | corrugated | grooved part 8 is comprised by row | line | column G1 from which the major axis of an ellipse is the same as the direction of the metal core main body 2, and row | line | column G2 which becomes the direction orthogonal to this.

  Further, the cored bar 1 of FIG. 10 in the second example is inclined so that the direction of the reinforcing concavo-convex part 8 is approximately 45 ° with respect to the direction of the cored bar body 2 and the adjacent reinforcing concavo-convex part 8. The plane ellipse directions are arranged in opposite directions.

  By doing so, the rigidity of the bent portion 5 can be increased, and the weather strip 10 after being bent into a substantially U-shaped cross section can be prevented from opening toward the original shape. Moreover, the assembly | attachment force with respect to the flange part 7 can also be raised, and a shift | offset | difference, drop-off, etc. can be prevented beforehand.

  Also in the present embodiment, the rigidity of the cored bar is effectively enhanced by overlapping the ends of the adjacent reinforcing concavo-convex portions 8 (in FIG. 10, symbol L3 indicates the amount of overlap).

  In addition, the formation means of the reinforcement uneven | corrugated part 8 in above-described embodiment is not limited, For example, it can form by press work, embossing, or embossing. Further, the cross-sectional shape of the reinforcing concavo-convex portion 8 is preferably a gentle arc as shown in FIG. This is because, when formed in a rectangular shape, stress concentrates at the corners and the cored bar 1 is easily deformed.

Accordingly, the reinforcing uneven portion 8 does not have to be clearly seen as a planar circular shape or an elliptical shape, and may be linear as shown in FIG. 11, for example. In FIG. 11, it is shown by a wavy curve, but it may be a straight line. The linear reinforcing concavo-convex portion 8 can be used in place of the elliptical shape shown in FIGS. Although not shown, in any of the embodiments, the reinforcing concavo-convex portion 8 may be a polygon such as a triangle, a quadrangle, a pentagon, or a hexagon instead of a round plan view ellipse. A combination in which these forms of shapes, ellipses, lines, and polygons are mixed may be used.

  In addition, in FIGS. 7 to 11, all of the connecting portions Sa are omitted.

  In FIG. 5, a large number of reinforcing concavo-convex parts 8 are formed alternately as reinforcing concave parts 8 a and reinforcing convex parts 8 b, but the present invention is not limited to this, and only the reinforcing concave parts 8 a or only the reinforcing convex parts 8 b are used. That is, all the one side surfaces of the core metal may be formed in the concave portion or the convex portion. In this case, the seal portion of the weather strip 10 may be disposed on either side.

  Moreover, although the weather strip attached to a trunk was illustrated in FIG. 2, the core metal of this invention is not limited to this, The core metal used for all the weather strips assembled | attached to the body of a vehicle door opening part, or a door Applies to

  The core metal may be molded not only from a metal but also from a highly rigid resin material.

DESCRIPTION OF SYMBOLS 1 Core metal 2 Core metal body 3 Back wall part 4 Side wall part 5 Bending part 7 Strip piece 8 Reinforcement uneven part 8a Reinforcement recessed part 8b Reinforcement protrusion part 10 Weather strip 11 Mounting base part 12 Seal part 13 Trim part 14 Lip part 20 Weather strip 21 Core Bar 22 Mounting Base 23 Seal B Body Panel F Flange G G Reinforcement Group G1 First Reinforcement Group G2 Second Reinforcement Group L1, L2, L3 Overlap S S Slit Sa Connection T T Trunk Lid

Claims (11)

  A mounting base portion (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange portion (F) formed along the peripheral portion of the opening or the peripheral portion of the door formed in the body of the automobile. A cored bar that is embedded and has a substantially U-shaped cross section and includes a back wall part (3) and a left and right side wall part (4) in which a number of strips (7) are connected via slits (S). A large number of linear or dot-shaped reinforcing concave portions (8a) or convex portions (8b) or convex / concave portions (8) having both are formed over part or all of the back wall portion and the left and right side wall portions. A metal strip for weather strips characterized by A mounting base portion (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange portion (F) formed along the peripheral portion of the opening or the peripheral portion of the door formed in the body of the automobile. A cored bar that is embedded and has a substantially U-shaped cross section and includes a back wall part (3) and a left and right side wall part (4) in which a number of strips (7) are connected via slits (S). A part of or the whole of the back wall part and the left and right side wall parts, or a concavo-convex part (8) having a dot-like reinforcing concave part (8a) or a convex part (8b) in the shape of a line or a plane outside the perimeter A metal strip for a weather strip, characterized in that a large number of metal cores are formed.   Embedded in a mounting base (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange (F) formed along a peripheral edge of an opening or a door peripheral edge formed in a body of an automobile A cored bar body (2) having a substantially U-shaped cross section and comprising a back wall portion (3) and left and right side wall portions (4) in which a number of strips (7) are connected via slits (S). A cored bar provided with a dot-shaped reinforcing concave part (8a) or convex part (8b) in the form of a line or a plane ellipse or both over part or all of the back wall part and the left and right side wall parts A large number of concavo-convex portions (8) are formed and the direction of the concavo-convex portion having both the reinforcing concave portion (8a) or the convex portion (8b) or both has a linear or planar elliptical shape, and the long axis is the short length of the core metal body. That it was set to be parallel to the direction The core metal for a weather strip to the butterflies. Embedded in a mounting base (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange (F) formed along a peripheral edge of an opening or a door peripheral edge formed in a body of an automobile A cored bar body (2) having a substantially U-shaped cross section and comprising a back wall portion (3) and left and right side wall portions (4) in which a number of strips (7) are connected via slits (S). A cored bar comprising a dot-shaped reinforcing concave part (8a) or convex part (8b) or both of a linear or planar elongated polygonal shape over part or all of the back wall part and the left and right side wall parts. both uneven portion (8) and a number form, the reinforcing recess (8a) or the orientation of the linear or planar hight polygonal shape of the convex portion (8b) or uneven portion which combines both, the major axis of the core Set to be parallel to the short direction of the gold body. Core metal weather strip for, characterized in that. Embedded in a mounting base (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange (F) formed along a peripheral edge of an opening or a door peripheral edge formed in a body of an automobile A cored bar body (2) having a substantially U-shaped cross section and comprising a back wall portion (3) and left and right side wall portions (4) in which a number of strips (7) are connected via slits (S). A cored bar provided with a dot-shaped reinforcing concave part (8a) or convex part (8b) in the form of a line or a plane ellipse or both over part or all of the back wall part and the left and right side wall parts A large number of concavo-convex portions (8) are formed and the direction of the concavo-convex portion having both the reinforcing concave portion (8a) or the convex portion (8b) or both has a linear or planar elliptical shape, and the long axis is the short length of the core metal body. reinforcing concave set to be parallel to the direction Provided at least in parallel to two rows of the group, and that the reinforcing irregularities between the first reinforcing irregularity group adjacent (G1) and the second reinforcing indents (G2), were overlapped when viewed in the direction perpendicular to the long axis A metal strip for weather strips characterized by Embedded in a mounting base (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange (F) formed along a peripheral edge of an opening or a door peripheral edge formed in a body of an automobile A cored bar body (2) having a substantially U-shaped cross section and comprising a back wall portion (3) and left and right side wall portions (4) in which a number of strips (7) are connected via slits (S). A cored bar comprising a dot-shaped reinforcing concave part (8a) or convex part (8b) or both of a linear or planar elongated polygonal shape over part or all of the back wall part and the left and right side wall parts. both uneven portion (8) and a number form, the reinforcing recess (8a) or the orientation of the linear or planar hight polygonal shape of the convex portion (8b) or uneven portion which combines both, the major axis of the core Set to be parallel to the short direction of the gold body. Reinforcement indents at least provided parallel to two rows, and the reinforcing irregularities between the first reinforcing irregularity group adjacent (G1) and the second reinforcing indents (G2), are overlapped when viewed from the direction perpendicular to the long axis A metal strip for weatherstrip, characterized by that.   A mounting base portion (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange portion (F) formed along the peripheral portion of the opening or the peripheral portion of the door formed in the body of the automobile. A cored bar body (2) which is embedded and has a back wall part (3) and a left and right side wall part (4), which are also substantially U-shaped in cross section and in which a large number of strips (7) are connected via slits (S). A large number of dot-shaped reinforcing irregularities (8) in the form of a line or a plane ellipse over part or all of the back wall portion and the side wall portion, and the reinforcing concave portion (8a) Alternatively, the convex portion (8b) or the linear or planar elliptical direction of the concave-convex portion having both is inclined with respect to the direction of the core metal body, and the adjacent reinforcing concave portion (8a) or Convex part (8b) or uneven part (8 Core metal weather strip for, characterized in that the linear or orientation of planar oval and arranged in mutually opposite directions. A mounting base portion (11) having a substantially U-shaped cross section constituting a weather strip (10) attached to a flange portion (F) formed along the peripheral portion of the opening or the peripheral portion of the door formed in the body of the automobile. A cored bar body (2) which is embedded and has a back wall part (3) and a left and right side wall part (4), which are also substantially U-shaped in cross section and in which a large number of strips (7) are connected via slits (S). A large number of dot-shaped reinforcing irregularities (8) in the form of a line or a plane long thin polygon , over part or all of the back wall portion and the side wall portion, and the reinforcing concave portion ( 8a) or the convex part (8b) or the linear or planar elongated polygonal direction of the concave-convex part having both, the long axis of which is inclined with respect to the direction of the core metal body, and the adjacent reinforcing concave part (8a) or convex part (8b) or concave part having both Linear or metal core for weather strip, characterized in that the orientation of the planar hight polygonal arranged mutually opposite directions parts (8). Reinforcing recesses (8a) or a convex portion (8b) or uneven portion which combines both (8), according to any one of claims 1 to 8, characterized in that it has formed only on the right and left side wall portions (4) Weather strip core. Reinforced recess (8a) or convex part (8b) or uneven part (8) having both, the bent part (5) is the part where the back wall part (3) and the left and right side wall parts (4) are adjacent to each other The metal core for weather strip according to any one of claims 1 to 8 , wherein the metal core is formed only on the metal core. The metal strip for a weather strip according to any one of claims 1 to 8 , wherein the linear shape is a curve.

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