JP2010221649A - Long extruded molding and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an extruded molding which can be extrusion-molded into a stable shape wherein the level of elastic repulsion of a protruded part is adjustable, and the manufacturing method thereof. <P>SOLUTION: The extruded mold (belt mold 50) includes a body 52 and protruded parts 56 and 62 formed integrally with the body. Separation parts 60 and 66 are formed in the protruded parts in a longitudinal direction to adjust the level of elastic repulsion. The protruded parts are configured by combining base thickness parts 60W and 66 where thicknesses of the protruded parts in a thickness direction are the predetermined thickness, and separation parts formed by separating parts or all of the thickness in the thickness direction after extrusion. Thus, the elastic repulsion per unit length in the longitudinal direction of the protruded parts of the part where the separation part is formed is smaller than that in a state where all the protruded parts are formed by base thickness parts. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a long extruded product made of a polymer material and a manufacturing method thereof. More specifically, the present invention relates to an extrusion-molded product including a protruding portion made of an elastic body protruding in a direction away from a main body portion attached to a mounted body, and a manufacturing method thereof.

Long extrudates are used for various applications in various industrial fields. For example, the following extrusion-molded articles can be given as typical examples.
(1) Inserted into the joint between the edges of the outer wall panel and used for the purpose of covering the joint from the outside, mainly for long joint materials for architectural use, in the groove of the body of a vehicle such as an automobile, for example, the roof of the body A long roof molding that covers the roof groove from above by inserting it into the provided roof groove.
A joint material or roof molding for such use is a molded member that has a head and a leg and is formed into a long shape having a substantially T-shaped cross section, and is formed integrally with the leg. A protrusion that protrudes away from the leg is provided. When the leg portion is press-fitted into the joint or the roof groove, the protrusion portion elastically deforms in a direction approaching the leg portion by contacting the end face of the panel or the side wall of the roof groove, and the elasticity of the protrusion portion. The joint material and the roof molding are held and fixed at a predetermined position by a repulsive force.
(2) Mounted on the lower edge of the window opening edge (the upper edge of the door panel) of a window frame (also referred to as a door frame when provided on a door panel) provided in a vehicle such as an automobile, and the window opening edge A belt molding (also referred to as a waist molding) on the inside and outside of the vehicle that shields between the moving window plate, and between the window frame and the window plate that moves up and down mounted along a groove formed in the window frame. A glass run channel that guides the window plate that moves up and down, and a door opening seal that is installed along the door opening edge of the vehicle body panel and seals between the door opening edge.
The belt molding, glass run channel, and door opening seal for such applications protrude in the direction away from the main body unit integrally with the main body unit mounted on the flange of the opening edge of the window frame or the groove of the window frame. It is a long molded member that has a protruding part made of an elastic polymer material or a protruding part that becomes a sealing lip or holding lip with the flange of the door opening edge sandwiched from both sides, and is attached to the opening edge or window frame The protruding portion is elastically deformed in a direction approaching the main body portion by coming into contact with the elevating window plate, and the elastic plate is shielded or sealed by the elastic repulsive force of the protruding portion.
The long extruded products described in the above (1) and (2) are generally produced by a so-called extrusion molding method in which various polymer materials are supplied to an extrusion mold for molding. Patent Document 1 discloses a technique related to a roof molding that has a structure in which an insertion force with respect to the roof groove is small and an output resistance against the roof groove is large, thereby facilitating the assembling work.

JP 2002-29328 A

By the way, in the example of (1), the shape and the width dimension of the head part and the projecting part of the joint material and the roof molding are the same in the longitudinal direction, but the width dimension of the joint (roof groove) is different. It may become. In this case, if you manufacture one type of molded product that is set to the intermediate dimension of different width dimensions and try to install it in joints or roof grooves with different width dimensions, joints with large width dimensions such as joints In this case, the elastic repulsive force of the projecting portion becomes small, and a force sufficient to hold the panel at the end face of the panel or the side wall of the roof groove cannot be obtained, so that there is a risk of falling off. On the other hand, in joints such as joints where the width dimension is small, the elastic repulsive force of the projecting portion increases when the legs are press-fitted into the joints or the roof groove, which may make attachment difficult.
Therefore, in such a case, a plurality of extrusion molds corresponding to the cross-sectional shape having the same overall shape but different projecting dimensions (width dimensions) for the different width dimensions should be manufactured and used. It is generally done in response.

  Further, when the protruding portion is formed by extrusion molding, a groove that is continuous with a part of the protruding portion (typically the root portion of the protruding portion) so that the elastic repulsion force of the protruding portion exhibits a predetermined value. Is formed so as to be thinner than the adjacent portion in the width direction. In this case, when the protruding portion is a thermoplastic polymer material, the protruding portion of the molten polymer material immediately after being extruded from the orifice of the extrusion mold has a weak self-holding force and may be undesirably displaced (deformed) by its own weight. is there. When the thermoplastic polymer material is an olefin-based thermoplastic elastomer, the displacement is particularly noticeable. On the other hand, when the protrusion is a rubber material made of EPDM, the material may be temporarily softened during the vulcanization process by heating, the self-holding force may be weakened, and the protrusion may be undesirably displaced (deformed) by its own weight. Hereinafter, the displacement is referred to as self-weight displacement.

  In addition, in the roof molding of a vehicle, the roof groove in which the roof molding is mounted has a direction in which at least one of the front end side and the rear end side of the roof molding is separated in the width direction with respect to the center line in the vehicle width direction (outside the vehicle). ) Curved along the longitudinal direction. When a linear roof molding is pushed into the curved groove and attached, the roof molding is attached in a state of being forcedly bent along the groove. Therefore, in addition to the above-described failure of the self-weight displacement of the protrusion, the roof molding has a built-in elastic restoring force between the main part of the roof molding and the protrusion that attempts to return to the original linear state at the bent portion. The curved portion of the roof groove and the other portion (for example, the roof groove in the central portion in the longitudinal direction of the roof molding are almost the same due to the added elastic restoring force incorporated in the main body portion and the locking portion which is the protruding portion. In the case of a straight portion), when the roof groove is used as a reference, there is a risk of displacement in the width direction of the vehicle body with respect to the groove, which deteriorates the appearance quality of the vehicle.

  In the example of (2), in order to reduce the sliding resistance between the window plate that moves up and down and the glass run channel, if the thickness of the base of the protrusion is reduced and the elastic repulsion of the protrusion is reduced, When the glass run channel is extruded as described above, that is, when the glass run channel is extruded, the protrusion does not withstand its own weight, and the protrusion hangs down in the direction of gravity, making it difficult to maintain a predetermined cross-sectional shape. On the other hand, when extrusion molding is carried out while maintaining the thickness enough to withstand the weight of the protruding portion so that the protruding portion does not hang down, the elastic repulsion force of the seal lip of the finished glass run channel becomes too large, and the moving window plate And the sliding resistance between the seal strip and the seal strip are increased.

  In addition, there is a door opening seal mounting portion having a substantially U-shaped cross section, and a protrusion serving as a holding lip is formed inside the U-shaped portion of the mounting portion. In a door opening seal that is installed by inserting a flange or the like into the opening groove of the mounting part and sandwiching the flange from both sides, the part where two flanges are overlapped with each other and three or more flanges are added to improve the strength. There is a laminated portion, and in the laminated portion, a portion where the substantial flange thickness is large may be continuous in a part in the longitudinal direction. For this reason, when the seal strip is formed on the basis of the two flange portions, the elastic repulsive force of the holding lip (protruding portion) becomes large in three or more flange portions, and there is a possibility that the insertion becomes difficult. On the other hand, when the holding lip is formed based on the three or more flange portions, the elastic repulsion force of the holding lip is reduced in the two flange portions, and sufficient force to sandwich the flange from both sides cannot be obtained. The door opening seal may fall off.

Therefore, the present invention has been created in view of the above problems, and an object thereof is to solve at least one of the following technical problems.
(1) A joint material that can be stably formed into a predetermined cross-sectional shape at the time of extrusion molding so that it can be shared by different groove widths, and can be commonly applied to different width dimensions even if the groove width dimensions are different. An object of the present invention is to provide an extruded product such as a roof molding and a manufacturing method thereof.
(2) An elastic repulsive force that can be stably formed into a predetermined cross-sectional shape at the time of extrusion molding and smaller than the elastic repulsive force of the protruding portion at the time of extrusion molding after the molding so that the elastic repulsive force can be uniformly reduced. It is to provide a molded product such as a belt molding, a glass run channel, and a door opening seal, and a manufacturing method thereof.
(3) To be able to partially reduce the elastic repulsion force, it can be stably molded into a predetermined cross-sectional shape during extrusion molding, and the elasticity per unit length between one part in the longitudinal direction of the protrusion and the other part It is to provide a molded product such as a belt molding, a glass run channel, and a door opening seal whose repulsive force changes in strength, and a manufacturing method thereof.

In order to achieve the above object, the present invention provides a long extruded product made of a polymer material.
That is, a long extruded product made of the polymer material of the present invention is, as described in claim 1, a main body portion that can be attached to a body to be attached, and a main body portion that is integrally formed with the main body portion. A protruding portion made of an elastic material protruding in a direction away from the protruding portion, and when the main body portion is attached to a predetermined position of the attached body, the protruding portion can be bent and elastically deformed and bent. This is an elongated molded article having a constant cross-sectional shape that is attached in a state in which an elastic repulsion force is built in the protrusion.
A separation portion that adjusts the degree of the elastic repulsion force is formed on at least a portion of the protrusion in the longitudinal direction.
The separation part is formed by separating a part or all of the meat in the thickness direction into a basic thick part of the protrusion part having a predetermined thickness before the separation part is formed, In the portion adjacent to the separation portion, the remaining portion where the separation portion is not formed in at least one of the longitudinal direction, the width direction, and the thickness direction of the protruding portion is connected in the longitudinal direction. The elastic repulsive force per unit length in the longitudinal direction of the protruding portion in the portion where the separating portion is formed is entirely formed by the basic thick portion by forming the separating portion. It is characterized in that it is smaller than the elastic repulsive force in the state of being.

In the extrusion molded product of the present invention having such a configuration, the separation portion is formed in the protruding portion of the extruded product having a constant outer cross-sectional shape (referred to as a cross-sectional shape) composed of the main body portion and the protruding portion. And, by forming the separation portion, the elastic repulsive force per unit length of the protruding portion is adjusted to be lower as compared with the state where the whole is formed by the basic thick portion. .
Thereby, according to the extrusion molded product of the present invention, the entire projecting portion is constituted by the basic thick portion having a predetermined thickness by combination with the shape (dimension), number and other conditions of the separating portion. The elastic repulsive force that is lower than the state can be exerted on the predetermined portion. In addition, when manufacturing an extrusion-molded product, in the extrusion process of the intermediate material before it becomes a final product (before the separation part is formed), the strength (self-preserving) that the protrusion does not displace (deform) due to its own weight. Since the protrusion can be formed while maintaining the thickness having the shape strength), the intermediate material can be stably extruded into an accurate shape.

According to a second aspect of the present invention, in the extruded product of the first aspect, the separation portion is formed continuously over the entire length of the protruding portion in the longitudinal direction.
In the extruded product of claim 2 having such a configuration, the elastic repulsion force of the protrusion can be reduced uniformly over the entire length of the protrusion in the longitudinal direction.

The invention according to claim 3 is the extruded product according to claim 1, wherein the separation portion is formed at a plurality of locations at a predetermined interval along the longitudinal direction of the protruding portion. The base thick part is interposed between the separation parts.
In the extruded product of claim 3 having such a configuration, an appropriate elastic repulsive force can be obtained in the range by accurately forming the separating portion in the protruding portion in a range where the elastic repulsive force is desired to be reduced. . For this reason, while reducing the difficulty at the time of mounting | wearing a molded product to a to-be-attached body, it can prevent that a molded product falls out from a to-be-attached body.

The invention according to claim 4 is the extruded product according to claim 2 or 3, wherein the separation part includes at least two separation parts having different degrees of separation of the meat in the thickness direction at different parts in the longitudinal direction. It is characterized by being.
In the extruded product according to claim 4 having such a configuration, a part in the longitudinal direction is changed with respect to another different part by changing the degree of separation of the meat in the thickness direction of the separating part at different parts in the longitudinal direction of the protruding part. The strength of the elastic repulsion can be adjusted.

The invention according to claim 5 is the extruded product according to claim 3, wherein the separation portions formed at the plurality of locations have the same length and / or the length of the protrusion in the longitudinal direction of the protrusion. It is characterized by being formed at the same depth in the thickness direction.
In the extruded product according to claim 5 having such a configuration, the elastic repulsion force is provided over almost the entire length in the longitudinal direction of the protruding portion by making the length and depth of the separating portion the same in a plurality of locations in the longitudinal direction of the protruding portion. Thus, a uniform portion of the elastic repulsive force having a smaller value is formed.

The invention according to claim 6 is the extruded product according to claim 3, wherein each separation portion formed at the plurality of locations has a different length and / or thickness of the protrusion in the longitudinal direction of the protrusion. It is characterized by being formed at different depths in the vertical direction.
In the extrusion molded article according to claim 6 having such a configuration, by changing the length and / or depth of the separating portion at a plurality of locations in the longitudinal direction of the protruding portion, the portions having different strengths of the elastic repulsion force are formed. Can do.

The invention according to claim 7 is the extruded product according to any one of claims 3 to 6, wherein at least one of the plurality of separating portions is formed as the through hole penetrating the protruding portion in the thickness direction. It is characterized by.
In the extrusion molded product according to claim 7 having such a configuration, since the separation portion of the through hole is formed in the longitudinal direction of the protruding portion, for example, when the extrusion molded product is applied to a belt molding, dust such as water droplets and dust penetrates. It flows downward through the holes and has the effect of helping to discharge them.

The invention according to claim 8 is the extruded product according to any one of claims 3 to 6, wherein at least one of the plurality of separating portions is a slit or non-passing that partially penetrates the protruding portion in the thickness direction. It is formed as a through hole.
In the extrusion molded product according to claim 8 having such a configuration, when it is not preferable that the separation portion formed on the protruding portion is visually observed from the outside in a state where the extrusion molded product is mounted on the attachment body, If the separation portion is formed on the side of the surface that is not visible, the appearance quality is not impaired.

The invention according to claim 9 is the extruded product according to any one of claims 1 to 8, wherein the extruded product is attachable along an edge of a window opening provided on a side surface of the vehicle body, It is a belt molding provided with the said projection part which is a seal lip which elastically contacts with the window plate which moves the inside of a window opening part.
In the extruded product according to claim 9 having such a configuration, even if the separation portion is formed at a predetermined position in a part of the longitudinal direction, even if the separation portion is attached along the bend of the flange as the attached body, the protrusion portion with respect to the window plate is attached. Since the difference in the pressing force in the longitudinal direction can be reduced, there is an effect that the wiping property of the window plate does not vary as compared with the conventional case. Furthermore, the shift in the width direction between the position of the flange and the position of the belt molding at the terminal portion and the center portion in the longitudinal direction of the belt molding can be made smaller than before.

The invention according to claim 10 is the extruded product according to any one of claims 1 to 8, wherein the extruded product can be mounted along a roof groove formed in a roof of a vehicle, and the elastic repulsion force It is a roof molding provided with the protrusion part which is a latching | locking part latched to the side wall of a roof groove | channel.
In the extruded product of claim 10 having such a configuration, even if the roof groove of the vehicle is curved in the width direction of the roof groove along the longitudinal direction, the mounting is facilitated by the action of the separating portion formed in the curved portion. Furthermore, the shift in the width direction between the position of the roof molding and the position of the roof groove at the terminal portion and the center portion in the longitudinal direction of the roof molding can be made smaller than before. For this reason, there exists an effect of preventing the fall of external appearance quality.

The invention according to claim 11 is the extruded product according to any one of claims 1 to 8, wherein the extruded product is a seal lip that can be mounted along a window frame of a vehicle and elastically contacts the window plate. It is a glass run channel which has a protrusion and guides the vertical movement of the window plate.
In the extruded product according to the eleventh aspect having such a configuration, the elastic repulsive force of the seal lip that presses the window plate can be set to an appropriate level by forming the separation portion at the base portion of the seal lip. For this reason, it is possible to realize a glass run channel having an appropriate guide performance without excessively increasing the sliding resistance when the window plate is moved up and down.

The invention according to claim 12 is the extruded product according to any one of claims 1 to 8, wherein the extruded product includes an outer peripheral edge of a window plate attached to a window frame portion of a vehicle, and the window frame portion. It is a window molding provided with the protrusion part which is a shielding lip which can be attached along the clearance gap between peripheral wall parts, and elastically contacts with the said surrounding wall part, and shields the said clearance gap.
In the extrusion molded product according to claim 12 having such a configuration, even when the width dimension of the groove between the vehicle body panel and the window plate periphery reaches a plurality of types, by forming the adjustment portion in a predetermined portion, the original type The window molding can be applied to a plurality of types of grooves having different width dimensions.

The invention according to claim 13 is the extruded product according to any one of claims 1 to 8, wherein the extruded product is attachable to a door opening edge of a vehicle body and is held by holding the opening edge. It is a door opening seal provided with the protrusion part which is a lip.
In the extruded product according to claim 13 having such a configuration, by forming the separating portion at the protruding portion sandwiching the portion where the thickness of the flange is thicker than the other portion corresponding to the thickness of the flange of the door opening. Reduce the elastic repulsive force of the protrusion. For this reason, the door opening seal in which the protruding portion has a separating portion maintains an appropriate holding force and has an effect that the door opening seal can be easily fitted into the door opening flange.

The invention according to claim 14 is the extruded product according to any one of claims 1 to 8, wherein the extruded product can be inserted along a joint provided on a body to be attached, shields the joint and is elastic. It is a joint material provided with the protrusion part which is a latching | locking part latched to the side wall of the said joint with a repulsive force.
In the extruded product according to claim 14 having such a configuration, the separation portion is formed in a predetermined portion even if the width dimension of the joints of the attachment body is within a permissible range due to an attachment error or the like. Thus, the original one type of joint material can be applied to a plurality of types of joints having different width dimensions.

The invention according to claim 15 is the extruded product according to any one of claims 1 to 14, wherein when the protruding portion is bent and elastically deformed, at least a surface of the protruding portion on the outer side of the radius of curvature is slit or not. The separation part made of a through hole is formed.
In the extruded product according to the fifteenth aspect having such a configuration, since the separation portion is formed outside the radius of curvature at which the tensile stress is generated in the width direction of the protrusion, the protrusion is easily bent.

Furthermore, in order to achieve the above object, the present invention provides a method for producing a long extruded product made of a polymer material.
That is, according to the method for producing a long extruded product made of a polymer material of the present invention, as described in claim 16, a body portion that can be attached to a body to be attached, a body portion integrally formed with the body portion, and A protrusion made of an elastic material protruding in a direction away from the main body,
When the main body is attached to a predetermined position of the body to be attached, the protrusion can be bent and elastically deformed, and when bent, the protrusion is attached with an elastic repulsive force built into the protrusion. This is a method for producing a long extruded product having a constant cross-sectional shape.
Then, at least the protrusion is extruded from a polymer material that exhibits elasticity when cured or solidified, and thereafter, an intermediate material of the extruded product including the protrusion formed by curing or solidifying the polymer material is prepared. Process,
When forming a separation portion that adjusts the degree of the elastic repulsion force between the protruding tip portion of the protruding portion and the main body portion of the intermediate material, the thickness in the thickness direction of the protruding portion is the extrusion molding. A part or all of the meat in the thickness direction is separated into the basic thickness part, which is a predetermined thickness corresponding to the thickness in the same direction, and a part of the meat is separated in the longitudinal direction and the width direction. And a step of forming a separation portion.

In the method for producing an extruded product of the present invention having such a configuration, an intermediate material of an extruded product having a constant outer cross-sectional shape (referred to as a cross-sectional shape) composed of a main body portion and a protruding portion is extruded by extruding a polymer material. An elastic repulsive force per unit length of the projecting portion in the separating portion is obtained by a preparatory step of forming and a step of forming a combination of a basic thick portion and a separating portion in the projecting portion of the intermediate material of the extruded product. An extruded product adjusted to be small can be formed.
Thus, according to the manufacturing method of the present invention, after the intermediate material is extruded and the protruding portion of the intermediate material is cured or solidified, a separation portion is formed for the purpose of adjusting the elastic repulsion force to be small. Therefore, when extruding the intermediate material, it is possible to prevent undesired deformation such as the protrusion hanging downward due to the weight of the protrusion, and to accurately form the protrusion on the protrusion. The separation part can be formed stably.

The invention of claim 17 is the manufacturing method of claim 16, wherein the step of preparing the intermediate material includes the step of extruding the intermediate material while maintaining the thickness of the protrusion having a self-holding strength. Wherein the separation part is formed in the step in synchronism with the extrusion and after the polymer material is cured or solidified.
In the manufacturing method of claim 17 having such a configuration, when the intermediate material is extruded, the protrusion is formed while maintaining a thickness that does not cause deformation or displacement due to the weight of the protrusion. Accurately shaped intermediate material can be formed stably.

The invention according to claim 18 is the manufacturing method according to claim 17, wherein a disc-shaped cutting blade having a plurality of convex cutting portions and concave portions alternately along the outer periphery of the disc is used. The cutting blade is cut between the tip of the protruding portion of the intermediate material and the main body portion in the thickness direction of the protruding portion, and the blade is rotated to rotate the cutting blade. A plurality of separation portions are intermittently formed along the longitudinal direction.
In the manufacturing method of claim 18 having such a configuration, an extruded product having the separation portion can be efficiently manufactured. Moreover, the depth of the separation part in the thickness direction can be adjusted by adjusting the step size of the convex part of the cutting blade or by adjusting the dimension between the disc-shaped cutting blade and the protruding part. Furthermore, the length in the longitudinal direction of the separation part can be adjusted by adjusting the circumferential dimension of the convex part of the cutting blade. Thereby, the extrusion molded product adjusted so that the said elastic repulsive force of the said protrusion part may become small in the said isolation | separation part can be manufactured efficiently.

Further, the invention of claim 19 is the manufacturing method of claim 16, wherein the intermediate material cut to a predetermined length is prepared, and between the tip of the protruding portion of the intermediate material and the main body portion, By pressing a blade of a cutting tool having a single blade portion or a plurality of blade portions formed at intervals from each other along the longitudinal direction of the protrusion portion, A single or a plurality of the separation portions are formed corresponding to the pressing portion of the blade portion.
In the manufacturing method of claim 19 having such a configuration, the separating portion is moved to the protruding portion by a single operation by using a known cutting means such as a press-type punch or a Thomson blade. And shape). Thereby, the extrusion molded product adjusted so that the said elastic repulsive force of the said protrusion part may become small in the said isolation | separation part can be manufactured.

According to a twentieth aspect of the present invention, in the manufacturing method of the eighteenth or nineteenth aspect, as the plurality of separation portions, a through-hole penetrating in the thickness direction is formed by pressing the blade portion.
In the manufacturing method of claim 20 having such a configuration, it is possible to easily form a separation portion including a through hole in a portion where the elastic repulsion force of the protruding portion is desired to be reduced. Thereby, the separation part can also serve as a discharge port for dust and the like, and an extruded product that is adjusted so that the elastic repulsion force of the protruding part is reduced can be manufactured.

The invention according to claim 21 is the manufacturing method according to claim 18 or 19, wherein the plurality of separation parts are arranged on one surface in the thickness direction of the protrusions while maintaining a predetermined interval in the longitudinal direction of the protrusions. A slit or a non-through hole that does not reach the other surface is formed from the side toward the other surface.
In the manufacturing method of claim 21, having such a configuration, when it is not preferable that the separation portion formed on the protruding portion is viewed from the outside in a state where the extruded product is mounted on the attached body, the separation portion is not viewed from the outside. An extrusion-molded product in which the separation part is formed on the surface side can be manufactured. For this reason, there exists an effect that external appearance quality is not impaired.

The invention according to claim 22 is the manufacturing method according to claim 18 or 19, wherein the plurality of separation parts are spaced apart so that the dimension in the longitudinal direction and the depth in the thickness direction are the same. A length having a plurality of cutting blades or a plurality of blade portions having a plurality of cutting blades having a plurality of cutting blades or a plurality of blade portions formed in the longitudinal direction and having the same size and protruding length in the longitudinal direction. The plurality of separation portions are formed using a long cutting tool.
In the manufacturing method of claim 22 having such a configuration, in the longitudinal direction of the projecting portion, the dimension in the longitudinal direction and the depth in the thickness direction of each of the plurality of separation portions are formed to be the same, A uniform portion of the elastic repulsive force having a smaller elastic repulsive force is formed over substantially the entire length in the longitudinal direction of the protruding portion.

The invention of claim 23 is the manufacturing method of claim 18 or 19, wherein in the length direction of the protrusion, the degree of separation of the meat in the thickness direction of the protrusion is different and / or the length of the protrusion. As the cutting tool, at least one of a plurality of cutting blades or a plurality of blade portions formed in the longitudinal direction at an interval so as to form at least two forms of separation portions having different formation lengths in the vertical direction A disc-shaped cutting blade or a plurality of cutting blades having a plurality of cutting blades, wherein the cutting blade or the blade portion is formed such that the lengthwise dimension and / or the protruding length of the cutting blade or the blade portion is different from those of other cutting blades or blade portions. The plurality of separation portions are formed using a long cutting tool having a plurality of blade portions.
In the manufacturing method according to claim 23 having such a configuration, at least two separation parts having different thicknesses of the protrusions in the thickness direction and / or different formation lengths in the longitudinal direction of the protrusions are provided. By forming, an extrusion-molded product having a plurality of separation parts adjusted so that the elastic repulsion forces in the protrusions are partially different can be manufactured.

It is a fragmentary perspective view which shows typically the motor vehicle with which the extrusion molded product which concerns on one Embodiment of this invention was attached. FIG. 2 schematically shows a configuration and a mounting state of an extruded product according to the first embodiment of the present invention, and is a cross-sectional view taken along line II-II in FIG. 1. It is the III-III sectional view taken on the line in FIG. It is a top view which shows typically the structure of the protrusion part which concerns on embodiment of this invention. It is a top view which shows typically the example of a change regarding the structure of the protrusion part which concerns on embodiment of this invention. It is a top view which shows typically the example of a change regarding the structure of the protrusion part which concerns on embodiment of this invention. It is sectional drawing which shows typically the structure of the protrusion part which concerns on embodiment of this invention. It is sectional drawing which shows typically the example of a change regarding the structure of the protrusion part which concerns on embodiment of this invention. It is sectional drawing which shows typically the example of a change regarding the structure of the protrusion part which concerns on embodiment of this invention. It is a plane sectional view showing typically one example of change about the structure of the projection concerning the embodiment of the present invention. It is a schematic explanatory drawing which shows the manufacturing method of the extrusion molded product which concerns on one Embodiment of this invention. It is a side view which shows typically the structure of the separation part formation machine for enforcing the manufacturing method of this invention. It is a side view which shows typically the example of a change regarding the structure of the separation part formation machine for enforcing the manufacturing method of this invention. FIG. 5 schematically shows a configuration and a mounting state of an extruded product according to a second embodiment of the present invention, and is a cross-sectional view taken along line VIII-VIII in FIG. 1. It is a IX-IX line sectional view in Drawing 1 showing typically the composition and mounting state of the extrusion-molded article concerning a 3rd embodiment of the present invention. It is a XX line sectional view in Drawing 1 showing typically composition and an attachment state of an extrusion-molded article concerning a 4th embodiment of the present invention. It is a XI-XI line sectional view in Drawing 1 showing typically composition and an attachment state of an extrusion-molded article concerning a 5th embodiment of the present invention. It is sectional drawing which shows typically the structure and mounting state of the extrusion molded product which concern on 6th Embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described. Note that matters other than those specifically mentioned in the present specification and necessary for the implementation of the present invention (for example, general matters relating to the production of long moldings by extrusion molding) are based on the prior art. It can be grasped as a design item of the trader. The present invention can be carried out based on matters disclosed in the present specification and drawings and common general technical knowledge in the field.
Hereinafter, a preferred embodiment (first embodiment) of a long extruded product of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partial perspective view schematically showing an attachment position of a long extruded product of this embodiment attached to an automobile (vehicle) 1 that is an attached body. The automobile 1 includes a roof 3, a center pillar 11, a front pillar 13, a front door 15, and a rear door 27 as in a general vehicle. The front door 15 is roughly composed of a door outer panel 17 constituting the door body, a door inner panel not shown in FIG. 1, and a window frame 19 formed above the panel 17. A window plate 20 is attached to the frame 19. Further, a flange (attached body) 25 (see FIG. 2) is provided along the door panel upper edge 23 (the edge of the window opening 21 on the vehicle exterior side) formed on the door outer panel 17. The belt molding 50, which is a long extruded product according to this embodiment, is attached along the flange 25. The automobile 1 includes a roof molding 100 (see FIG. 8), a glass run channel 150 (see FIG. 9), a window molding 200 (see FIG. 10), and a door opening seal as an embodiment of a long extruded product. Although 250 (refer FIG. 11) is mounted | worn, these are mentioned later as other embodiment.
In the present invention, front and rear refer to the front-rear direction of the vehicle.

FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1, and the belt molding 50 according to the present embodiment will be described based on this drawing. As shown in the figure, the belt molding 50 includes a main body 52 having a substantially U-shaped cross section. The main body portion 52 has a vehicle inner side wall portion 54 and a vehicle outer side wall portion 70 that respectively protrude so as to form a groove 73. And it protrudes in the groove | channel 73 from the vehicle outer side wall part 70, can be elastically contacted to the side surface of the flange (attachment body) 25, and space is maintained between the vehicle outer side wall part 70 and the vehicle inner side wall part 54. The upper and lower flange holding seal lips 72, 72 are integrally formed with the main body 52 so as to extend in a folded shape. Further, the lower first portion which is a protruding portion according to the present embodiment, which protrudes from the vehicle inner side wall portion 54 so as to intersect the surface of the window plate 20 at a predetermined angle and can elastically contact the surface of the window plate 20. The seal lip 56 and the upper second seal lip 62 are respectively integrally formed with the main body 52 by extrusion. Furthermore, a shielding lip 68 that protrudes from the upper end portion of the vehicle interior side wall portion 54 so as to intersect the surface of the window plate 20 at a predetermined angle and does not contact the surface of the window plate 20 has a main body portion. 52 is formed integrally.
Further, the belt molding 50 according to the present embodiment has a predetermined length dimension that is a separation portion according to the present embodiment, which will be described later, at the root of the first seal lip 56 on the vehicle interior side wall portion 54 side. A circular hole having a predetermined width dimension or an oblong through hole 60 in the longitudinal direction is formed by removing or separating (hereinafter, referred to as separation) all of the thickness of the first seal lip 56 in the thickness direction. As a result, a basic thick portion (thick portion when extruded) 60W that remains without being separated in the width direction of the seal lip adjacent to the separation portion 60 of the first seal lip 56 is formed. The seal lip 56 is connected in the longitudinal direction. In this way, if the end of the separation part is formed in a circular or semicircular shape, there is no notch effect, and it is effective because no cracks are generated from the slit part during use of the belt molding. Similarly, in the second seal lip 62, a slit 66, which is a separation portion according to the present embodiment, is formed at the base of the second seal lip 62 on the vehicle inner side wall portion 54 side, and the thickness of the second seal lip 62 in the thickness direction is reduced. It is formed by partly separating from the lower side toward the upper side and partly separating the meat in the longitudinal direction and the width direction. As a result, the connecting portion (which is thicker when extruded) than the basic thick portion 66W which is not separated in the thickness direction in the upper half adjacent to the separation portion of the second seal lip 62 is left. A thin wall portion 66T is formed in a thin shape, and connects the second seal lip 62 in the longitudinal direction. In addition, when the separation part is formed of a through hole, the size of the hole can be changed not only in the longitudinal direction but also in the width direction to adjust the elastic repulsion force described later.

  Next, the mounting state of the belt molding 50 having the above configuration on the flange 25 will be described. 3 is a cross-sectional view taken along the line III-III in FIG. 2 and schematically shows a state in which the belt molding 50 is attached to the flange 25. As shown in the figure, a linear belt molding 50 is bent along a flange 25 that is curved so as to be convex toward the outside of the vehicle with a radius of curvature R (for ordinary passenger cars, the radius of curvature R is 5 m to several tens of meters). When the belt molding 50 is attached, an internal stress is generated in the longitudinal direction to restore the original linear shape in the longitudinal direction, so that the belt molding 50 is slightly closer to the original linear shape (larger than the radius of curvature R). A shape that is curved with a radius of curvature is maintained. As a result, if the dimensions from the surface of the window plate 20 to the belt molding 50 at the center portion in the longitudinal direction of the belt molding 50, the vehicle front portion, and the vehicle rear portion are d1, d2, and d3, respectively, the difference in each dimension ( d1 <d2, d1 <d3) will occur. Therefore, in the conventional belt molding, the elastic repulsion force that the seal lip in the central portion presses the surface of the window plate is larger than the stress in the front portion and the stress in the rear portion, and the surface of the seal lip and the window plate in the central portion. And the sliding movement of the window plate can be hindered, and abnormal noise and local wear may occur as the sliding resistance is unevenly distributed.

However, according to the belt molding 50 according to the present embodiment, the seal lips 56 and 62 include at least one separation portion 60 and 66 having a predetermined dimension in the longitudinal direction formed at least in the central portion in the longitudinal direction, and the separation portion. Width-wise basic thick portion 60W that remains unseparated adjacently, a connecting portion 66T that remains unseparated at the upper portion in the thickness direction adjacent to the separation portion, and a longitudinal basic thick portion that will be described later (In the case where there are a plurality of separation portions in the longitudinal direction, combinations of the separation portions and the basic thick portion between the separation portions) are formed. As a result, the elastic repulsive force at which the seal lips 56 and 62 press the surface of the window plate 20 in the central portion is smaller than that of the conventional belt molding, and the pressing force per unit length over the entire length in the longitudinal direction. Since the difference in pressure becomes small, an excessive force is not locally applied to the surface of the window plate 20, and the smooth movement of the window plate 20 can be realized. As a result, the seal lips (protrusions) 56 and 62 do not undergo their own weight deformation during extrusion, and can effectively wipe off foreign matters such as rainwater and mud adhering to the outer surface of the window plate 20 during use. In the present embodiment, the first seal lip 56 is formed with a circular or oblong through hole 60 extending in the longitudinal direction as one separation portion, and the second seal lip 62 is formed with a slit 66 as one separation portion. However, it suffices to form a separation portion consisting of either the slit 66 or the through hole 60 in each of the seal lips 56 and 62, and the combination thereof is free. When the through-hole 60 is formed as a separation portion in the belt molding 50, the elastic repulsion force of the seal lips 56 and 62 can be made smaller than that of the slit 66 having the same length, and is deposited on the seal lips 56 and 62. The dust such as dust and water droplets flows downward through the through hole 60 and can be discharged. However, if the second seal lip 62 can be visually recognized from the outside by forming the through hole 60 as the separation portion, the appearance quality of the belt molding 50 may be impaired, so the slit 66 may be formed as the separation portion. preferable. In the present embodiment, the slit 66 as the separation portion of the second seal lip 62 is a non-through hole provided on the back surface side (lower surface) of the second seal lip 62 and extends to the surface side (upper surface). Not reached. Therefore, the appearance quality is not impaired. Moreover, the elastic repulsive force which generate | occur | produces on the curvature-radius outer side of a protrusion part by this can be made small effectively.
The outside (outer) belt molding 50 according to the present embodiment is not limited to being mounted on the front door 15 mounted on the left side surface portion of the automobile (vehicle) 1. For example, the present invention can be similarly applied to the left rear door 27 of the vehicle and the front and rear doors on the right side. Furthermore, the present invention can be applied to the inner side (inner) belt molding. In the case of the belt molding inside the vehicle, the main body can be attached to the edge of the door inner panel or the edge of the door trim (door lining).

  Next, the separation part according to this embodiment formed on the first seal lip 56 and / or the second seal lip 62 formed integrally with the main body 52 of the belt molding will be described with reference to the drawings. 4A to 4C are plan views schematically showing modifications of the configuration of the separating portion according to the present embodiment, particularly by taking the second seal lip 62 as an example. 4D to 4G are cross-sectional views schematically showing modified examples of the configuration of the separation unit according to the present embodiment. In the first seal ship 56, a separation portion having the same configuration is formed, but the description is omitted because it overlaps.

FIG. 4A shows a plurality of separation portions that are divided into the front portion L1, the central portion L2, and the rear portion L3, which are virtual regions or ranges, and are intermittently connected to the respective portions. It is a top view which shows the state in which the (separation part formed by the slit so that the thickness of the separation part formed by the through-hole or the thickness direction of the 2nd seal lip 62 was the same) was formed. In the range of the front portion L1, the base thick portion (thickness of the protruding portion) is formed in the separation portion 86A having a length da and the remaining portion where the separation portion 86A is not formed adjacent to the longitudinal end of the separation portion 86A. The portion whose thickness in the direction is a predetermined thickness corresponding to the thickness in the same direction when the protruding portion is extruded.) The basic thickness portion 66W is adjacent to the width direction of the 87AL and the separation portion 86A. A formed seal lip 62 is connected in the longitudinal direction. As shown in the drawing, the front side portion (length is L1) as a virtual region or range in the longitudinal direction of the second seal lip 62 and the rear side portion (length is L3) as described above. Then, a separation portion 86A having a length da and a basic thick portion 66W in the width direction of the seal lip formed adjacent to and surrounding the separation portion 86A and a basic thick portion 87AL having a length da in the longitudinal direction. Are provided alternately. On the other hand, the central portion (the length is L2) of the second seal lip 62 in the longitudinal direction surrounds the separation portion 86AA having the length da1 and the separation portion 86AA, and the basic thick portion 87AAL having the width direction and the length da2 is formed. A plurality of alternating layers are provided so that da1> da2, and the above-described basic thick portion 66W is continuous from the front portion (L1) in the width direction.
In this case, the ratio of the length of the separating portion per unit length in the longitudinal direction of the second seal lip 62 in the central portion is the unit length in the longitudinal direction of the second seal lip 62 in each of the front side portion and the rear side portion. It is larger than the ratio of the length of the separation part. Accordingly, the elastic repulsive force per unit length of the second seal lip 62 in the front portion L1 and the rear portion L3 is smaller than the elastic repulsive force before the separation portion is formed, and the second seal lip in the central portion. The elastic repulsive force per unit length in the longitudinal direction of 62 is smaller than the elastic repulsive force in each of the front portion and the rear portion. When the seal lip having the structure as in this example is applied to the belt molding described above, an excessive pressing force is not applied to the surface of the window plate 20 in the central portion, and the smooth movement of the window plate 20 can be realized.

4B shows that a plurality of separating portions 86B and a longitudinal thick portion 87BL are formed in a row over the entire length of the second seal lip (projecting portion) 62 in the longitudinal direction. A thick portion 66W is formed, and in the central portion L2 of the second seal lip 62, a row of separating portions 86BB and a basic thick portion 87BBL are formed mutually in addition to the distal end side of the second seal lip 62. FIG. 5 is a plan view schematically showing a second seal lip 62.
As shown in the drawing, in the front side portion L1, the central portion L2, and the rear side portion L3 of the second seal lip 62 in the longitudinal direction, the separation portion 86B having an arbitrary length db and the arbitrary length db over the entire length. A plurality of basic thick portions 87BL are alternately provided in a line. In the central portion L2 in the longitudinal direction, a plurality of separation portions 86BB having an arbitrary length db1 and a plurality of basic thick portions 87BBL having an arbitrary length db2 are alternately provided in a line.
In this case, the total ratio of the lengths of the separating portions of each row per unit length in the longitudinal direction of the second seal lip 62 in the central portion L2 is the second seal lip 62 in each of the front portion L1 and the rear portion L3. It is larger than the ratio of the length of the separating portion per unit length in the longitudinal direction. Accordingly, the elastic repulsive force per unit length in the longitudinal direction of the second seal lip 62 at the central portion is smaller than the elastic repulsive force at each of the front portion and the rear portion. When the seal lip having the configuration as in this example is also applied to the belt molding described above, an excessive pressing force is not applied to the surface of the window plate 20 at the center portion, and the smooth movement of the window plate 20 can be realized.

FIG. 4C is a plan view schematically showing the second seal lip 62 in which a combination of the separating portion 86C and the basic thick portion 87C that are intermittent in the central portion L2 in the longitudinal direction of the second seal lip 62 is formed. FIG. As shown in the drawing, in the central portion (length L2) of the second seal lip 62 in the longitudinal direction, the separation portions 86C having the length dc1 and the basic thick portions 87C having the length dc2 are alternately arranged in a row. Are provided in plurality. Here, the lengths dc1 and dc2 are arbitrary. On the other hand, the separation part is not formed in the front part L1 and the rear part L3, and the part is composed only of the basic thick part 66W.
In this case, the separation portion 86C is formed only at the central portion. Accordingly, the elastic repulsive force per unit length in the longitudinal direction of the second seal lip 62 in the central portion is smaller than the elastic repulsive force in each of the front portion and the rear portion where the separation portion 86C is not formed. Even when the seal lip having the structure as in this example is applied to the belt molding described above, an excessive pressing force is not applied to the surface of the window plate 20 in the center portion, and the smooth movement of the window plate 20 can be realized. .

Next, in FIG. 4D, a combination of a plurality of separating portions 96D and 96DD and a basic thick portion 97D, which are intermittent over the entire length of the second seal lip 62, and a connecting portion 66T in the thickness direction is formed. 5 is a longitudinal sectional view schematically showing a second seal lip 62. FIG. As shown in the figure, in the longitudinal direction front part (length is L1) and rear part (length is L3) of the second seal lip 62 having the thickness t of the basic thick part 97D. A separation portion 96D having a length dd and a depth t1, and a basic thick portion 97D in the longitudinal direction having a length dd in the remaining portion where the separation portion 96D is not formed adjacent to the longitudinal end of the separation portion 96D. Are provided alternately, and the second seal lip 62 is connected in the longitudinal direction with the connecting portion 66T in the thickness direction. On the other hand, in the central portion (length L2) of the second seal lip 62 in the longitudinal direction, the separation portion (t>t2> t1) 96DD having a length dd and a depth t2 and a basic thick portion having a length dd. A plurality of 97Ds are provided alternately.
In this case, the ratio of the area of the separation portion per unit length in the longitudinal direction of the second seal lip 62 in the central portion is the unit per unit length in the longitudinal direction of the second seal lip 62 in each of the front side portion and the rear side portion. It is larger than the ratio of the area of the separation part. Accordingly, the elastic repulsive force per unit length in the longitudinal direction of the second seal lip 62 at the central portion is smaller than the elastic repulsive force at each of the front portion and the rear portion. When the seal lip having the configuration as in this example is applied to the belt molding described above, an excessive pressing force is not applied to the surface of the window plate 20 at the center portion, and the smooth movement of the window plate 20 can be realized.

4E to 4G, per unit area determined by the constant length L and the constant thickness T of the second seal lip 62 (the thickness of the second seal lip 62 is T and the length is L). ) Is a cross-sectional view schematically showing the ratio of the basic thick portion remaining without forming the separation portion and the separation portion to the unit area. As shown in FIG. 4E, the second seal lip 62 is formed with a plurality of separation portions 96E having a length de and a depth te, and a plurality of basic thick portions 97E in the longitudinal direction. The seal lip 62 is connected to the connecting portion 66T in the longitudinal direction. Further, as shown in FIG. 4F, the second seal lip 62 is formed with a plurality of separation portions 96F and basic thick portions 97F having a length df (de> df) and a depth te. Furthermore, as shown in FIG. 4G, the second seal lip 62 is formed with a plurality of separation portions 96G having a length de and a depth tg (te <tg) and a plurality of basic thick portions 97G. The seal lip 62 is connected in the longitudinal direction with the connecting portion 66T in the thickness direction.
Here, comparing the second seal lip 62 of FIG. 4E and the second seal lip 62 of FIG. 4F, when the depth of the formed separation portion is the same, the total number of separation portions formed per unit area is the same. As the area ratio increases, the elastic repulsion of the second seal lip 62 decreases accordingly. In this case, since the total area of the separation part in FIG. 4F is set larger than the total area of the separation part in FIG. 4E, the elastic repulsion force per unit length in the longitudinal direction of the second seal lip 62 in FIG. The elastic repulsive force per unit length in the longitudinal direction of the 4E second seal lip 62 is small.
Similarly, when the second seal lip 62 of FIG. 4E is compared with the second seal lip of FIG. 4G, when the length of the formed separation part is the same and the number of the separation parts is the same, the formed separation part When the depth in the thickness direction is large and the total area of the separating portion is increased, the elastic repulsion force of the second seal lip is reduced accordingly. In this case, since the depth of the separating portion in FIG. 4G is larger than the depth of the separating portion in FIG. 4E (tg> te), the elastic repulsive force per unit length in the longitudinal direction of the second seal lip 62 in FIG. This is smaller than the elastic repulsive force of the second seal lip 62 of 4E.

From the above, when extruding the seal lip, it is possible to prevent the deformation of its own weight and form an accurate shape, and in addition, by appropriately combining the length in the longitudinal direction and the depth in the thickness direction of the separation portion, Separating portions 60 and 66 having a desired elastic repulsive force can be formed at predetermined portions in the longitudinal direction of the first seal lip 56 and the second seal lip 62, respectively. As a result, the belt molding 50 can be applied both when obtaining a uniform elastic repulsive force over the entire length of the first seal lip 56 and the second seal lip 62 and when obtaining a partially different elastic repulsive force in the longitudinal direction. Is obtained.
With such a belt molding 50, even if the linear belt molding 50 is bent and attached along the bending of the flange 25, the elastic repulsion force is compared with the other parts at the central portion of the first seal lip and the second seal lip. And does not grow. Therefore, since the difference in the pressing force in the longitudinal direction of the first seal lip and the second seal lip with respect to the window plate can be reduced over the entire length of the belt molding, the wiping performance in the longitudinal direction does not vary.

Next, the material used suitably in the manufacturing method of this invention is demonstrated.
The polymer material used for the protrusions in the manufacturing method disclosed herein can be used without particular limitation as long as it is a polymer material that can achieve the required quality and function. Preferable specific examples include those in which the polymer component is a thermoplastic resin, a thermoplastic elastomer, or a rubber material.
The thermoplastic resin may be a general-purpose resin or an engineering resin (so-called engineering plastic), and may be a crystalline resin or an amorphous (non-crystalline) resin. For example, polypropylene (PP), acrylonitrile butadiene styrene copolymer (ABS), acrylonitrile ethylene propylene rubber styrene copolymer (AES), polyamide (PA), polycarbonate (PC), polyacetal (POM), polyethylene (PE), polystyrene Various thermoplastic resins such as (PS), polyphenylene oxide (PPO), and polymethyl methacrylate (PMMA) can be mentioned. In addition to these, various grades of polyvinyl chloride (PVC), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and other resins can be used. From the viewpoint of environmental friendliness, a resin containing no halogen such as chlorine is preferable, and from the viewpoint of recyclability, an olefin resin such as polyethylene and polypropylene is particularly preferable.
Moreover, various thermoplastic elastomers (for example, olefin type, styrene type, vinyl type) can be preferably used. In particular, from the viewpoint of environmental considerations and recyclability, for example, olefinic thermoplastic elastomer (TPO) whose hard segment is an olefinic resin is preferable. A thermoplastic elastomer containing a rubber component such as EPM, EPDM, styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS) as a soft segment is also preferable.
Examples of the rubber material include natural rubber (NR), ethylene propylene rubber (EPM), ethylene propylene diene rubber (EPDM), styrene butadiene rubber (SBR), butadiene rubber (BR), butyl rubber (IIR), and nitrile butadiene. Rubber (NBR), chloroprene rubber (CR) or the like can be used. When consideration is given to the environment, a rubber containing no halogen such as chlorine is preferable. In particular, EPDM can be preferably used for rubber products for automobiles, industrial rubber products, rubber products for construction and the like because of its good impact resilience.
In carrying out the present invention, a polymer material (molding material) having one kind of the above-described polymers (thermoplastic resin, rubber, elastomer, etc.) as a matrix component may be used, or two kinds or three or more kinds may be used. A polymer material composed of the above polymer or a polymer material having a polymer alloy as a matrix component may be used.
Furthermore, in order to improve the quality and function of the above polymer material, a polymer material in which various additive materials are mixed as an accessory component can be preferably used. Examples of such additive materials include inorganic fillers such as calcium carbonate, clay, mica, talc, and magnesium hydroxide. Moreover, colorants, such as carbon black, titanium diacid, various organic dyes, and pigments, are mentioned. Moreover, process oils, such as a paraffin type process oil, a naphthene type process oil, and an aromatic process oil, are mentioned. Alternatively, a stabilizer such as an organic tin stabilizer such as dibutyltin malate or dibutyltin mercapto may be used depending on the polymer component contained. Other lubricants such as PTFE, plasticizers such as phthalic acid dielectrics (DOP (bisphthalate), DIDP (diisodecyl phthalate), DINP (diisononyl phthalate), DOA (bisadipate)), powder sulfur, acyl Examples thereof include vulcanizing agents such as organic peroxides such as peroxides, and vulcanization accelerators such as guanidines, thiazoles, thioureas, and thiurams.

  Next, a preferred embodiment of the method for producing an extruded product of the present invention will be described in detail with reference to the drawings. FIG. 5 is a schematic explanatory view showing an extrusion production line for suitably carrying out the production method according to the present embodiment and each device constituting the line. In the following description regarding the present invention, when referring to upstream and downstream, upstream and downstream in the extrusion direction, that is, an intermediate material 404 described later flows from the extruder 400 (upstream) side to the cutting machine 442 (downstream) side. Refers to the positional relationship of the case. As shown in the drawing, the extrusion production line according to the present embodiment is roughly divided into an extrusion molding machine 400, a treatment layer 420, a separation part forming machine 422 that forms a separation part according to the present embodiment, a take-up machine 440, and A cutting machine 442 is provided.

When manufacturing an extruded product, first, an intermediate material forming step is executed. In the intermediate material forming step, the above-described polymer material for forming the intermediate material 404 is supplied to the extrusion molding machine 400, and a main body (not shown) and the main body are molded integrally with the extrusion molding machine 400. An intermediate material 404 having a predetermined cross-sectional shape composed of the protrusions 408 is extruded.
Thereafter, the intermediate material 404 made of a polymer material extruded from the extruder 400 is subjected to a treatment for curing or solidifying in the treatment layer 420, that is, a crosslinking promotion treatment or a cooling treatment. The processing tank 420 may be a process of solidifying the polymer material by cooling, for example, a polymer material mainly composed of a thermoplastic resin (a process of cooling and solidifying the polymer material heated and extruded in a molten state). ). Further, the rubber material may be cured by heating and vulcanizing vulcanizable unvulcanized rubber (EPDM or the like).

Then, the intermediate material 404 that has been cured or solidified is continuously supplied to the separation unit forming machine 422 to form a basic thick portion 414 that remains without being separated from the separation unit 412 in the protruding portion 408 of the intermediate material 404. Execute the process. The take-up machine 440 provided on the downstream side of the separating unit forming machine 422 includes take-up belts or rollers 440A and 440B that take up the intermediate member 404 on which the separating unit is formed while rotating from the front and back sides.
The cutting machine 442 provided on the downstream side of the take-up machine 440 includes a cutter 442A, a die 442B, and a position sensor 442C that are cutting blades. Then, when the position sensor 442C detects the tip of the intermediate material 404 that has passed through the take-up machine 440, the cutter 442A is operated to cut the intermediate material 404 into a predetermined length. Thereby, it is possible to continuously produce an extrusion-molded product having a predetermined length while preventing the protruding portion from being deformed by its own weight and maintaining an accurate shape.
It should be noted that each device other than the separation unit forming machine 422 described above may be any device as long as it is conventionally used, and does not characterize the present invention.

Next, the separation part forming machine 422 according to the present embodiment will be described in detail. As shown in FIG. 6, the separation unit forming machine 422 used in the process of forming the separation unit is composed of a disk-shaped rotation drive roller 424 and a disk-shaped rotation drive receiving roller 434, and the roller 424 and 434 are arranged so as to sandwich the intermediate material 404 in the vertical direction.
The disk-shaped rotational driving roller 424 is a disk-shaped cutting having a plurality of convex cutting blades (cutting blades that are convex portions) 428 and concave portions 430 alternately at predetermined intervals along the outer periphery of the disk. A blade 426 is provided. The protrusion 408 of the intermediate member 404 is formed by adjusting the step size between the tip of the convex cutting blade 428 and the bottom of the recess 430, or by adjusting the distance between the axes of the shafts 432 and 436. The depth of the separation part 412 in the thickness direction and the remaining thickness in the thickness direction are determined. As described above, the slit (separation part) 412 is formed by separating a part of the thickness in the thickness direction of the protrusion 408 corresponding to the desired elastic repulsion force or the thickness of the protrusion 408 in the thickness direction. The through hole (separation part) 412 can be formed by separating all of them. Further, by adjusting the circumferential length of the convex cutting blade 428, the length in the longitudinal direction of the separating portion 412 formed on the protruding portion 408 of the intermediate material 404 is determined. The shape of the cutting blade 428 can be appropriately changed according to the desired shape of the separating portion 412. In the drawing, the shapes of the plurality of cutting blades 428 in the circumferential direction are the same, but they may be formed in different shapes. . On the other hand, in this embodiment, the disk-shaped rotational drive receiving roller 434 does not have a cutting blade and fulfills the function of feeding the intermediate material 404 by the receiving roller 434, but similarly to the roller 424 along the circumferential direction. An uneven portion may be formed so that the convex portion of one roller bites into and fits into the concave portion of the other roller.

  Each of the rollers 424 and 434 rotates by driving the respective rotation shafts 432 and 436 at a peripheral speed synchronized with the extrusion speed of the intermediate material 404. Then, the cutting blade 428 of the rotation driving roller 424 is cut in the thickness direction of the protruding portion 408 of the intermediate material 404 and the disc-shaped cutting blade 426 is rotated, so that the thickness in the thickness direction of the protruding portion 408 is increased. Separation can be performed in the width direction of the protruding portion, and the separating portion 412 can be intermittently formed along the longitudinal direction of the protruding portion 408. Thereby, the combination of the separation part 412 and the basic thick part 414 can be formed. As described above, the rotational drive receiving roller 434 constituting the separation unit forming machine 422 may not be the roller 438 as long as it has a function of feeding the intermediate material 404. Furthermore, although this embodiment is a case where the said separation part formation process is performed synchronizing with extrusion molding, and demonstrated the example performed before a taking process, instead of this, it may be after a taking process, or The intermediate material may be cut for each of the intermediate materials in a separate step after the intermediate material is cut to a predetermined length.

  The separation unit forming machine 422 is not limited to that of the above-described embodiment. For example, a modification example described below is given. FIG. 7 is a side view schematically showing a configuration of a separation unit forming machine 444 that is a first modification. The step of forming the separation portion by the separation portion forming machine 444 may be performed in the intermediate material forming step in synchronization with the extrusion molding, but is preferably performed after the curing or solidifying treatment step and the cutting step.

  The separation part forming machine 444 is used by being mounted on a press machine having a ram and a bolster, and is composed of a punch 446 and a die 454 according to this embodiment as shown in FIG. The die 454 shown in FIG. 7 is illustrated on the assumption that an through hole is formed. The punch 446 is arranged separately as an upper die and the die 454 is used as a lower die. A plurality of convex cutting blades (blade portions) 448 and concave portions 450 are alternately provided below the punch 446 along the longitudinal direction. A stripper 452 is provided for pressing and fixing the intermediate material 404 against the die 454 and separating the intermediate material on which the separation portion is formed from the punch 446.

  Similar to the disk-shaped cutting blade 426 described above, it is formed on the protruding portion 408 of the intermediate member 404 by adjusting the step size of the cutting blade 448 provided in the punch 446 or by adjusting the moving stroke of the punch 446. The thickness of the separation part 412 in the thickness direction is determined. A slit (separation part) 412 is formed by separating a part of the thickness in the thickness direction of the protrusion 408 according to a desired elastic repulsion force, or the entire thickness in the thickness direction of the protrusion 408 is separated. Through holes (separating portions) 412 can be formed. Further, by adjusting the length of the convex cutting blade 448, the length in the longitudinal direction of the separating portion 412 formed on the protruding portion 408 of the intermediate material 404 is determined. Note that the shape of the cutting blade 448 can be appropriately changed according to the desired shape of the separating portion 412. In the drawing, the interval between the cutting blades 448 in the central portion (L2) of the punch 446 is the front portion (L1) and the rear portion. Although formed so as to be smaller than the interval in the portion (L3), all the intervals may be the same over the entire length, or the intervals of the cutting blades 448 may be different in the longitudinal direction. Furthermore, a slit may be appropriately selected depending on the required elastic repulsion force, such as forming a slit in a part of the longitudinal direction and forming a through hole in another range.

  On the other hand, when the punch 446 is a piercing type (drilling type), the punch 446 is pressed against the protruding portion 408 to form the through hole (separating portion) 412, so that cutting residue is generated from the protruding portion 408. Accordingly, the die 454 is provided with a piercing punch 446 and a die hole 456 for discharging the cut residue at a position corresponding to the cutting blade 448 of the punch 446. Note that when the punch 446 is a Thomson blade, only the slit (separation part) 412 that penetrates the thickness direction of the protrusion 408 is formed and no cutting residue is generated, so the die 454 is provided with a die hole 456. There is no need.

The intermediate material 404 cut to a predetermined length is set on the upper part of the die 454, and the punch 446 is pressed against the protruding portion 408 of the intermediate material 404 from above, so that a convex cutting blade (blade) provided on the punch 446 is provided. Part) 448 separates the thickness of the protrusion 408 in the thickness direction, and the separation part 412 can be intermittently formed along the longitudinal direction of the protrusion 408. Thereby, the extrusion molded product provided with the combination of the remaining basic thick part 414 which remains without being separated from the separation part 412 can be manufactured.
In addition, the method of forming the separation part 412 to form the combination of the separation part 412 and the basic thick part 414 is not limited to the above-described separation part forming machines 422 and 444, but other known methods such as Rotational cutting tools, formation by laser beam irradiation, and the like can also be applied.

  As described above, according to the manufacturing method of the present invention, it is possible to stably extrude the intermediate material 404 including the protruding portion 408 that maintains a thickness that does not cause deformation due to its own weight at the base portion of the protruding portion 408. it can. And after the process which hardens or solidifies the protrusion part 408 of the intermediate material 404, the extrusion part which has a desired elastic repulsive force by forming the isolation | separation part 412 and the basic | foundation thick part 414 in the predetermined part of the protrusion part 408 The product can be manufactured stably.

In the above-described first embodiment, the extruded product is the belt molding 50, but is not limited to such a form.
Hereinafter, as a second embodiment, a suitable example in the case where the extruded product is the roof molding 100 will be described with reference to the drawings.

  The roof molding 100 according to the present embodiment is an extrusion-molded product that is extruded from two types of olefin-based or styrene-based thermoplastic elastomer materials or rubber materials having different hardnesses. As shown in FIG. 1, the roof molding 100 is formed along the longitudinal direction of the vehicle along the boundary between the center roof panel 5 and the side roof panel 7 constituting the roof (attachment body) 3 according to the present embodiment. The roof groove 9 is attached.

FIG. 8 is a cross-sectional view of the left roof molding 100 in FIG. 1 taken along the line VIII-VIII. As shown in FIG. 8, the roof molding 100 according to the present embodiment is roughly composed of a head part 102, a trunk part 108, and leg parts 114.
The head portion 102 includes a main body portion 104 that covers the opening of the roof groove 9, and a thin cover layer 106 that is laminated and integrated on the surface of the main body portion 104. A trunk portion 108 is formed integrally with the back surface of the head portion 102 so as to protrude substantially vertically from the vicinity of the center in the width direction, and protrusions 110 are formed on both side surfaces of the trunk portion 108. Further, a strip-shaped metal core material is embedded in the trunk portion 108 as a reinforcing member 112 along the longitudinal direction. Further, a leg 114 is integrally formed at the tip of the trunk 108, and intersects with a side wall 7A of the side roof panel 7 forming a roof groove 9 from a vehicle outer side end of the leg 114 at a predetermined angle. The vehicle outer side locking lip 124, which is a protruding portion according to the present embodiment protruding so as to protrude, and the protruding portion according to the present embodiment protruding so as to intersect the side wall 5A of the center roof panel 5 at a predetermined angle from the vehicle inner side terminal. The vehicle inner side latching lips 116 are integrally formed.
Further, in the vehicle inner side locking lip 116 and the vehicle outer side locking lip 124, slits 120 and 128, which are separation portions according to the present embodiment, are formed at the roots of the locking lips 116 and 124 in the thickness direction of the locking lip. It is formed by partly separating meat.

  Next, the mounting state of the roof molding 100 having the above-described configuration in the roof groove 9 will be described. As shown in FIG. 8, the leg portions 114 are arranged on the roof groove 9 side while elastically deforming the inner locking lip 116 and the outer locking lip 124 of the roof molding 100 upward corresponding to the shape of the roof groove 9. Toward the roof groove 9 from above. An elastic repulsive force is generated in the inboard locking lip 116 and the outboard locking lip 124 of the pushed roof molding 100, and is pressed against the side walls 5 </ b> A and 7 </ b> A in the roof groove 9 in a state in which this is incorporated. The roof molding 100 is locked in the roof groove 9.

Hereinafter, a roof molding that can be applied in common to one vehicle type having a roof groove width dimension K2 and another vehicle type having a roof groove width dimension K1 smaller than K2 will be described with reference to FIG.
According to the roof molding 100 according to the present embodiment, in addition to being able to be molded while keeping the locking lip in an accurate shape, as shown in the figure, the width dimension of the roof groove 9 is K1 (K1 is practically In order to apply the roof molding manufactured to be applied to the roof groove of K2 to the roof groove of about -5% to -10% with respect to the reference width dimension K2) A combination of the separating portion 120 and the base thick portion is formed over the entire length of at least one of the root portion of the stop lip 116 and the root portion of the vehicle exterior locking lip 124. As a result, the elastic repulsive force per unit length in at least one of the vehicle inner side locking lip 116 and the vehicle outer side locking lip 124 can be reduced, so that the roof formed so as to conform to the width dimension K2. The molding 100 can be mounted in common on the roof groove 9 having the width dimension K1.

When the roof groove 9 is curved in the vehicle width direction so that the center side in the width direction of the vehicle body is outside the radius of curvature along the longitudinal direction of the vehicle 1, the conventional linear roof molding is replaced with the roof groove 9. When mounted on the roof molding, the elastic restoring force of the locking lip is added in addition to the elastic restoring force of the main body part, causing internal stress to restore to the original linear shape and slightly approaching the original linear shape It is bent and attached. As a result, when the roof groove 9 is used as a reference, a positional deviation may occur in the vehicle width direction with respect to the groove, particularly at the end in the longitudinal direction of the roof molding.
However, according to the roof molding 100 according to the present embodiment, in the vehicle front portion and the vehicle rear portion of the roof molding 100, slits (in the vehicle outer side locking lips (locking lips located inside the curvature radius) 124) of the roof molding 100 are provided. The separation part 128 and the basic thick part are combined. Similarly, the slit (separation part) 120 and the base meat are more preferably formed in the vehicle interior locking lip (locking lip positioned outside the radius of curvature) 116 of the roof molding 100 in the center portion of the roof molding 100 in the longitudinal direction of the vehicle. The thick parts are formed in combination. Therefore, the separation part is formed on the locking lip of the roof molding at the locking lip 124 which is inside the radius of curvature at both ends in the longitudinal direction, and at the locking lip 116 which is outside the radius of curvature at the central part. Since the elastic repulsive force at each of the locking lips 116 and 124 formed with the separating portion can be made smaller than that of the locking lip before the separating portion is formed, the positional deviation in the longitudinal direction of the roof molding 100 is conventionally increased. It is possible to make it smaller.

  While the first and second embodiments have been described in detail with reference to the drawings, the present invention is not limited to the first and second embodiments described above. Hereinafter, as a third embodiment, a suitable example in the case where the extruded product is a glass run channel 150 will be described with reference to the drawings.

As shown in FIG. 1, a window frame (attached body) 19 is integrally formed on the front door 15 of the automobile (vehicle) 1, and a window plate (window glass) is formed in a groove 19 </ b> J inside the window frame 19. A glass run channel 150 that guides the up-and-down movement of 20 is mounted.
9 is a cross-sectional view taken along line IX-IX in FIG. As shown in the figure, the window frame 19 is formed of a steel plate that is bent so that the vehicle inner side wall 19A and the vehicle outer side wall 19E are arranged substantially parallel to each other in the width direction of the automobile 1. A groove 19J is formed along the longitudinal direction of the window frame 19 by 19A, 19E and the bottom wall 19I. More specifically, as shown in FIG. 9, the periphery of the groove 19J in the window frame 19 is constituted by a vehicle inner side wall 19A, a vehicle outer side wall 19E, and a bottom wall 19I.

  Further, the portion of the vehicle inner side wall 19A near the bottom wall 19I has a groove 19J inner space (a space between the vehicle inner side wall 19A and the vehicle outer side wall 19E) larger than the vicinity of the opening edge 19K of the groove 19J. Is formed as an enlarged wall portion 19C that is recessed to the same extent as the inner peripheral wall portion 19B near the opening edge 19K, and a step projecting in the direction of the vehicle outer side wall 19E between the enlarged wall portion 19C and the inner peripheral wall portion 19B. A portion 19D is formed. Similarly, the portion of the vehicle outer wall 19E near the bottom wall 19I is formed as an enlarged wall portion 19G that is recessed from the outer peripheral wall portion 19F near the opening edge 19K of the vehicle outer wall 19E. A step portion 19H is formed between the outer peripheral wall portion 19F.

  On the other hand, as shown in FIG. 9, the glass run channel 150 according to the present embodiment includes a main body 152 having a substantially U-shaped constant cross-sectional shape in a state where the glass run channel 150 is mounted in the groove 19J of the window frame 19. Yes. The main body 152 has a base portion 154 disposed at a position facing the end surface of the window plate 20 that is guided by the glass run channel 150 and moves up and down, and grooves from both ends in the width direction of the base portion 154. The vehicle interior side wall portion 156 and the vehicle exterior side wall portion 166 project from each other. Further, the glass run channel 150 protrudes in a folded manner from the opening edge 19K side (projection tip side) of each of the vehicle inner side wall portion 156 and the vehicle outer side wall portion 166 toward the center in the width direction of the base portion 154, A vehicle inner side seal lip 158 and a vehicle outer side seal which are elastically contactable with the side surface of the window plate 20 that moves up and down and extend in a folded shape while maintaining a space between the side wall portions 156 and 166. Each has a lip 168. Furthermore, a vehicle inner side shielding lip 164 is formed so as to project outward at an end portion of the vehicle inner side wall portion 156 near the vehicle inner side seal lip 158. Similarly, a vehicle outer side shielding lip 174 is formed at the end of the vehicle outer side wall portion 166 near the vehicle outer side seal lip 168 so as to project outward.

  As shown in FIG. 9, the glass run channel 150 according to the present embodiment is formed at the root of the back side (the side facing the groove 176) where the inside seal lip 158 is not viewed in the inside seal lip 158 (protrusion). A slit 162 that is a separation portion according to the present embodiment is formed by partially separating the meat in the thickness direction of the vehicle interior seal lip 158. Similarly, in the vehicle outer side seal lip 168 (protruding portion), a slit 172 that is a separation portion according to the present embodiment is provided at the base of the rear surface side of the vehicle outer side seal lip 168 (side facing the groove 176). It is formed by partly separating the meat in the thickness direction.

Therefore, according to the glass run channel of the present embodiment, the seal lip can be formed in an accurate shape during extrusion molding, and in addition, the separation portions 162 and 172 are provided on the vehicle inner seal lip 158 and the vehicle outer seal lip 168, respectively. Since the combination of the remaining basic thick portion (not shown) that is not separated is formed, the elastic repulsion force at the seal lips 158 and 168 is in a state where the separation portion is not formed (the state before the separation portion is formed). When the window plate 20 moves up and down through the window opening 21, the sliding resistances of the vehicle interior seal lip 158 and the surface of the window plate 20 and the vehicle exterior seal lip 168 and the surface of the window plate 20 are reduced. The window plate 20 can be smoothly raised and lowered without being excessively large. In this embodiment, slits 162 and 172 are formed as separation portions on the back surfaces of the seal lips 158 and 168 (sides facing the grooves 176). The slits 162 and 172 are formed on the seal lips 158 and 168, respectively. It is preferable to keep it within a range that does not reach the surface (vehicle front side). Thereby, it is possible to obtain a desired glass run channel 150 in which the appearance quality of the base portions of the seal lips 158 and 168 visible from the outside is not impaired. In another embodiment, when the protrusion is bent and elastically deformed, the separation part is formed on the surface that is outside the curvature radius of the protrusion, but in this embodiment, the separation is performed on the surface that is inside the curvature radius of the protrusion. The part is formed. Even so, the elastic repulsion force generated in the protruding portion can be effectively reduced.
The glass run channel 150 according to the present embodiment is not limited to being mounted on the window frame of the front door 15 of the automobile (vehicle) 1. For example, the present invention can be applied to a window frame of a vehicle in which a window plate is opened and closed such as a rear door 27 mounted on the left side surface of the vehicle, a front door mounted on the right side surface of the vehicle, and a rear door.

  As mentioned above, although 1st-3rd embodiment was described in detail, referring drawings, this invention is not limited to the above-mentioned 1st-3rd embodiment. Hereinafter, as a fourth embodiment, a suitable example when the extrusion-molded product is the window molding 200 will be described with reference to the drawings.

As shown in FIG. 1, an automobile (vehicle) 1 is formed with a front window frame portion (attached body) 220 that forms a window opening edge composed of a roof 3 and a front pillar 13. The window molding 200 according to the present embodiment forms a gap 226 between the outer peripheral edge of the front window plate (window plate) 224 attached to the window frame portion 220 and the peripheral wall portion 222 of the window frame portion 220. Mounted to cover.
FIG. 10 is a cross-sectional view taken along line XX in FIG. 1, and the window molding 200 includes a main body portion 202 having a substantially U-shaped constant cross-sectional shape formed from a head portion 204 and a leg portion 206. . A shielding lip (protruding portion) 208 that protrudes from the main body portion 202 so as to intersect the surface of the peripheral wall portion 222 of the window frame portion 220 at a predetermined angle and can elastically contact the surface of the peripheral wall portion 222. And is molded integrally. The shielding lip (projection) 208 is made of a polymer material that is softer and more elastic than the main body 202. Further, the window molding 200 according to the present embodiment has the shielding lip 208 according to the present embodiment at least at the root portion of the shielding lip 208 (a plurality of separation portions may be provided in the width direction of the shielding lip 208). The slit 212 which is such a separation part is formed by partially separating the thickness direction meat on the back side of the shielding lip 208 which is not visible.

The window molding 200 is mounted in advance along the periphery of the window plate, and is pushed into the window opening edge together with the window plate. At this time, the front window 224 is pushed in while elastically deforming the shielding lip 208 of the window molding 200, and the gap 226 is shielded by the shielding lip 208. The two-dot difference line indicates the position of the shielding lip 208 before mounting. The pressed molding lip 208 is pressed against the side wall of the peripheral wall portion 222, whereby the window molding 200 is locked in the gap 226.
Therefore, according to the window molding 200 of the present embodiment, the gap formed between the peripheral wall portion 222 of the window frame portion 220 and the outer peripheral edge of the front window plate 224 in addition to being able to be extruded while keeping the shielding lip 208 in an accurate shape. Corresponding to the size of H.226, the separation part 212 is formed on the shielding lip 208, so that the original one-type window molding 200 can be adapted to other vehicle types having a smaller width size. Furthermore, even in one vehicle type, the size of the gap 226 may vary greatly due to the accumulation of errors between the vehicle body size and the window plate size. Even if the gap is small, if the separating portion is formed on the shielding lip 208 to reduce the elastic repulsion force, not only is the window plate mounting operation easy, but also after the window plate is mounted. Since excessive compressive stress is not applied to the surface direction of the window plate, deformation and displacement of the window plate can be prevented. Note that the window molding 200 according to the present embodiment is not limited to being mounted on the front window frame portion 220 of the window opening edge. For example, it can be mounted along an arbitrary window plate such as a window plate (rear window glass) at the rear of the vehicle and a window plate (side window glass) at the vehicle side.
Further, the shape of the main body is not limited to the above, and a window molding in which the leg 206 fixed only to the surface of the window plate becomes the main body and the shielding lip 208 protrudes from the leg 206 may be used.

  As mentioned above, although 1st-4th embodiment was described in detail, referring drawings, this invention is not limited to the above-mentioned 1st-4th embodiment. Hereinafter, as a fifth embodiment, a suitable example in the case where the extruded product is a door opening seal 250 will be described with reference to the drawings.

As shown in FIG. 1, the door opening seal 250 is a door opening flange (attachment body) provided at an opening edge of a vehicle body panel (not shown) corresponding to a front door (door) 15 of an automobile (vehicle) 1. ) (FIG. 11) It is inserted into 14 and mounted so as to sandwich the flange 14 from both sides. Here, the door opening flange 14 is composed of an outer panel 14A and an inner panel 14B, and a reinforcing panel 14C is partially overlapped and joined to the door opening flange 14 along the longitudinal direction of the opening edge. And the flange 14 becomes thicker at the portion.
11 is a cross-sectional view taken along the line XI-XI in FIG. 1, and the door opening seal 250 includes a main body portion 252 having a substantially U-shaped cross section. The main body portion 252 includes a base portion 272 disposed at a position facing the end face of the door opening flange 14, and a vehicle inner side wall that protrudes so as to form a groove 274 from both ends in the width direction of the base portion 272. A portion 256 and a vehicle outer side wall portion 264 are provided. Further, the vehicle interior side flange portion lip (projection portion) protrudes integrally from the vehicle interior side wall portion 256 and the vehicle exterior side wall portion 264 toward the center side in the width direction of the base portion 272, and can be brought into elastic contact with the door opening flange 14. ) 258 and a vehicle outer side flange holding lip (protrusion) 266. In the main body 252, a strip-shaped metal core material is embedded as a reinforcing member 254 along the longitudinal direction. Further, the door opening seal 250 is a hollow that contacts the back surface of the door 15 when the door 15 is closed and elastically deforms to seal a gap between the front door 15 and the vehicle body panel (not shown) by an elastic repulsive force. A seal 278 is formed on the vehicle outer side wall 264. Furthermore, a shielding lip 280 that protrudes from the back surface of the base portion 272 of the main body portion 252 toward the inside of the vehicle at a predetermined angle is formed integrally with the main body portion 252.

  Further, at least the root portions of the flange holding lips 258 and 266 of the door opening seal 250 corresponding to the thick flange portion 14 formed by joining the reinforcing panel 14C (a plurality of rows of separating portions in the width direction of the flange holding lips 258 and 266). The slits 262 and 270 which are the separation portions according to the present embodiment are formed by partially separating the thickness-direction meat of the flange holding lips 258 and 266. Note that the separation portion according to the present embodiment is not limited to the above-described slit, and is formed by separating all the flesh in the thickness direction of the flange holding lips 258 and 266 at a plurality of locations at predetermined intervals in the longitudinal direction. A plurality of through holes may be used.

The door opening seal 250 inserts the main body 252 into the door opening flange 14 while elastically deforming the flange holding lips 258 and 266. Then, a part of the flange holding lips 258 and 266 presses the side wall of the flange 14 from both the inside and outside of the vehicle, whereby the door opening seal 250 is attached to the door opening flange 14. When the door opening seal 250 is attached to the door opening flange 14, a terminal of an interior member (not shown) in the vehicle is covered in an insertion shape between the shielding lip 280 and the vehicle interior side wall portion 256. It has become.
Therefore, according to the door opening seal 250 of the present embodiment, in addition to being able to keep the flange holding lip in an accurate shape during extrusion molding, the thickness of a portion of the door opening flange 14 in the longitudinal direction is the other portion. Even if the thickness is greater than the thickness, the flange holding lips 258 and 266 are combined with the separating portions 262 and 270 and the base thick portion (not shown) corresponding to the thickness of the door opening flange 14. Therefore, the elastic repulsion force of the flange holding lips 258 and 266 can be partially reduced. As a result, the door opening seal 250 has a sufficient force to pinch the flange 14 and can be easily inserted into the flange 14. Note that the door opening seal 250 according to the present embodiment is not limited to being attached to the front door 15. For example, the present invention can be applied to any door such as a rear door 27 mounted on the left side surface of the vehicle, a front door and a rear door mounted on the right side surface of the vehicle, a back door (hatch back) at the rear of the vehicle, and a trunk.

  As mentioned above, although 1st-5th embodiment was described in detail, referring drawings, this invention is not limited to the above-mentioned 1st-5th embodiment. Hereinafter, as a sixth embodiment, a suitable example in the case where the extruded product is a joint material 300 for architectural use will be described with reference to the drawings.

  FIG. 12 is a schematic cross-sectional view showing a state when the joint material 300 is attached to the joint 302 formed along the panel wall (attachment body) 304. As shown in the figure, the joint material 300 according to this embodiment includes a main body 306 having a substantially T-shaped cross section. A projecting portion 310 that protrudes from the main body portion 306 toward the side surface of the panel wall 304 at a predetermined angle and elastically contacts the side surface of the panel wall 304 is formed integrally with the main body portion 306. Further, a strip-shaped metal core material is embedded in the main body 306 as a reinforcing member 308 along the longitudinal direction. Furthermore, in the protrusion 310, a slit 314, which is a separation part according to this embodiment, is formed at the base of the protrusion 310 by partially separating the thickness of the protrusion 310 in the thickness direction.

  Next, the mounting state of the joint material 300 having the above configuration on the joint 302 will be described. As shown in the figure, the main body 306 is inserted into the joint 302 while the protrusion 310 of the joint material 300 is elastically deformed in accordance with the shape of the joint 302. The joint member 300 is locked to the joint 302 when the protrusion 310 of the inserted main body 306 is pressed against the side surface of the panel wall 304 in the joint 302.

  Therefore, according to the joint material 300 according to the present embodiment, as shown in the figure, the width dimension of the joint 302 is M1 (M1 is a reference width in practice) due to an error in the installation of the outer wall panel wall. In the joint 302 that fluctuates in the range of up and down (about +/- 10% to 15%)) with respect to the dimension M2, when the joint material 300 manufactured based on the M2 is mounted, the respective protrusions A combination of a separation portion 314 and a basic thick portion (not shown) is formed over the entire length of 310. Thereby, in addition to being able to mold while keeping the protruding portion in an accurate shape at the time of extrusion molding, the elastic repulsion force at the protruding portion 310 can be adjusted to be small, so that the width dimension of the joint 302 becomes smaller than the reference dimension M2. In this case, the joint material 300 can be easily attached to the joint 302.

  As mentioned above, although the specific example of this invention was demonstrated in detail, referring drawings, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

1 Automobile (vehicle)
3 Roof (attachment)
5 Center roof panel 5A Side wall 7 Side roof panel
7A Side wall 9 Roof groove 11 Center pillar 13 Front pillar 14 Door opening flange (attachment)
14A Car outer panel 14B Car inner panel 14C Reinforcement panel 15 Front door (door)
17 Door outer panel 19 Window frame (attachment)
19A Car inner side wall 19B Inner peripheral wall part 19C Enlarged wall part 19D Stepped part 19E Car outer wall 19F Outer peripheral wall part 19G Enlarged wall part 19H Stepped part 19I Bottom wall 19J Groove 19K Opening edge 20 Window plate (window glass)
21 Window opening 23 Upper edge of door panel (edge of window opening)
25 Flange (attachment)
27 Rear door 50 Belt molding 52 Main body 54 Car interior side wall 56 First seal lip (protrusion)
60 Through hole (separation part)
60W Basic thick part 62 Second seal lip (protrusion)
66 Slit (separator)
66T connecting part 66W basic thick part 68 shielding lip 70 car outer side wall part 72 flange holding seal lip 73 groove 86A, 86AA, 86B, 86BB, 86C separating part 87AL, 87AAL, 87BL, 87BBL, 87C basic thick part 96D, 96DD , 96E, 96F, 96G Separation part 97D, 97E, 97F, 97G Base thick part 100 Roof molding 102 Head part 104 Main body part 106 Cover layer 108 Trunk part 110 Protrusion part 112 Reinforcement member 114 Leg part 116 Car interior locking lip (protrusion) Part)
120 slit (separator)
124 Car exterior locking lip (protrusion)
128 slit (separator)
150 Glass run channel 152 Body 154 Base 156 Car inner side wall 158 Car inner seal lip (protrusion)
162 Slit (separator)
164 Car inner side shielding lip 166 Car outer side wall part 168 Car outer side seal lip (protruding part)
172 Slit (separator)
174 Car outer side shielding lip 176 Groove 200 Window molding 202 Main body part 204 Head part 206 Leg part 208 Shielding lip (protrusion part)
212 Separating part 220 Front window frame part (window frame part) (attachment)
222 Peripheral wall 224 Front window plate (window plate)
226 Clearance 250 Door opening seal 252 Main body 254 Reinforcement member 256 Car inner side wall 258 Car inner flange holding lip (protrusion)
262 Slit (separator)
264 Car outer side wall 266 Car outer flange holding lip (protrusion)
270 slit (separator)
272 Base portion 274 Groove 278 Hollow seal portion 280 Shielding lip 300 Joint material 302 Joint 304 Panel wall (attachment)
306 Main body 308 Reinforcing member 310 Projection
314 Slit (separator)
400 Extruder 404 Intermediate Material 408 Protruding Portion 412 Separating Portion 414 Base Thickness Portion 420 Processing Layer 422 Separating Portion Forming Machine 424 Rotation Drive Roller 426 Disc Cutting Blade 428 Convex Cutting Blade (Cutting Blade that is a Convex)
430 Concave part 432 Rotating shaft 434 Rotation drive receiving roller 436 Rotating shaft 438 Roller 440 Picking machine 440A, 440B Taking roller 442 Cutting machine 442A Cutter 442B Die 442C Position sensor 444 Separating part forming machine 446 Punch (cutting tool)
448 Convex cutting blade (blade)
450 Recess 452 Stripper 454 Die 456 Die hole

Claims (23)

A main body that can be attached to the body to be attached; and a protrusion made of an elastic material that is integrally formed with the main body and protrudes away from the main body.
When the main body is attached to a predetermined position of the body to be attached, the protrusion can be bent and elastically deformed, and when bent, the protrusion is attached with an elastic repulsive force built into the protrusion. A long extruded product having a constant cross-sectional shape,
The protruding part is formed with a separating part for adjusting the degree of the elastic repulsive force in at least a part of the longitudinal direction,
The separation part is formed by separating a part or all of the meat in the thickness direction into a basic thick part of the protrusion part having a predetermined thickness before the separation part is formed, In the portion adjacent to the separation portion, the protrusion is connected in the longitudinal direction at the remaining portion where the separation portion is not formed in at least one of the longitudinal direction, the width direction, and the thickness direction,
The elastic repulsive force per unit length in the longitudinal direction of the protruding portion in the portion where the separating portion is formed is entirely formed by the basic thick portion by forming the separating portion. An extruded product characterized in that it is smaller than the elastic resilience of the state.   The extrusion molded product according to claim 1, wherein the separation portion is formed continuously over the entire length in the longitudinal direction of the protruding portion.   The separation portion is formed at a plurality of locations at a predetermined interval along the longitudinal direction of the protrusion, and the basic thick portion is interposed between the separation portions at the plurality of locations. The extruded product according to claim 1.   The extrusion molded article according to claim 2 or 3, wherein at least two separation parts having different separation degrees of the meat in the thickness direction are provided as different parts in the longitudinal direction.   The separation portions formed in the plurality of locations are formed to have the same length in the longitudinal direction of the protrusion and / or the same depth in the thickness direction of the protrusion. The extruded product according to claim 3.   The respective separation portions formed in the plurality of locations are formed to have different lengths in the longitudinal direction of the protrusions and / or different depths in the thickness direction of the protrusions. 3. Extrusion product according to 3.   The extrusion molded product according to any one of claims 3 to 6, wherein at least one of the plurality of separation portions is formed as a through-hole penetrating the protruding portion in the thickness direction thereof.   7. The plurality of separation portions, at least one of which is formed as a slit or a non-through hole that partially penetrates the protruding portion in the thickness direction thereof. Extrusion product as described.   The extruded product can be attached along an edge of a window opening provided on a side surface of a vehicle body, and includes a projecting portion that is a seal lip that elastically contacts a window plate moving in the window opening. The extruded product according to any one of claims 1 to 8, wherein the product is an extruded product.   The extruded product is a roof molding that can be mounted along a roof groove formed on a roof of a vehicle, and has a protruding portion that is a locking portion that is locked to a side wall of the roof groove by an elastic repulsive force. The extrusion-molded article according to any one of claims 1 to 8, wherein   The extruded product is a glass run channel that can be mounted along a window frame of a vehicle, has a protruding portion that is a seal lip that elastically contacts the window plate, and guides the window plate to move up and down. The extruded product according to any one of claims 1 to 8.   The extruded product can be attached along a gap between an outer peripheral edge of a window plate attached to a window frame portion of a vehicle and a peripheral wall portion of the window frame portion, and is elastically contacted with the peripheral wall portion and the gap It is a window molding provided with the protrusion part which is a shielding lip which shields, The extrusion molded product as described in any one of Claim 1 to 8 characterized by the above-mentioned.   9. The door opening seal according to claim 1, wherein the extruded product is a door opening seal that can be attached to a door opening edge of a vehicle body and includes a protruding portion that is a holding lip that holds the opening edge. The extruded product according to any one of the above.   The extruded product is a joint material that can be inserted along a joint provided on a body to be attached, and has a protruding portion that is a latching portion that shields the joint and latches to the side wall of the joint with an elastic repulsive force. The extruded product according to any one of claims 1 to 8, wherein the product is an extruded product.   15. The separation part comprising a slit or a non-through hole is formed on at least a surface outside the radius of curvature of the protrusion when the protrusion is bent and elastically deformed. The extruded product according to any one of the above. A main body that can be attached to the body to be attached; and a protrusion made of an elastic material that is integrally formed with the main body and protrudes away from the main body.
When the main body is attached to a predetermined position of the body to be attached, the protrusion can be bent and elastically deformed, and when bent, the protrusion is attached with an elastic repulsive force built into the protrusion. A method for producing a long extruded product having a constant cross-sectional shape,
Providing at least the protrusion from a polymer material exhibiting elasticity when cured or solidified, and thereafter preparing an intermediate material of the extruded product including the protrusion obtained by curing or solidifying the polymer material; ,
When forming a separation portion that adjusts the degree of the elastic repulsion force between the protruding tip portion of the protruding portion and the main body portion of the intermediate material, the thickness in the thickness direction of the protruding portion is the extrusion molding. A part or all of the meat in the thickness direction is separated into the basic thickness part, which is a predetermined thickness corresponding to the thickness in the same direction, and a part of the meat is separated in the longitudinal direction and the width direction. Forming a separation part by
The manufacturing method of the extrusion molded product characterized by including. The step of preparing the intermediate material includes the step of extruding the intermediate material while maintaining the thickness of the protrusion having a self-holding strength,
The method according to claim 16, wherein in the step, the separation portion is formed in synchronization with the extrusion and after the polymer material is cured or solidified.   A disc-shaped cutting blade having a plurality of convex cutting blades and concave portions alternately along the outer periphery of the disc is used, and the cutting blade being the convex portion is connected to the tip of the protruding portion and the main body of the intermediate material. A plurality of separation parts are intermittently formed along the longitudinal direction of the protrusion by the cutting blade by cutting the protrusion in the thickness direction and rotating the blade. The manufacturing method of Claim 17 characterized by these.   The intermediate material cut to a predetermined length is prepared, and a single blade portion or a mutual blade is provided between the tip of the protruding portion of the intermediate material and the main body portion along the longitudinal direction of the protruding portion. A single or a plurality of blades formed by pressing a blade of a cutting tool having a plurality of blade portions formed at intervals in the longitudinal direction of the projecting portion. The manufacturing method according to claim 16, wherein the separation portion is formed.   The manufacturing method according to claim 18 or 19, wherein as the plurality of separation parts, a through hole penetrating in the thickness direction is formed by pressing the blade part.   A slit that does not reach the other surface from the one surface side in the thickness direction of the protruding portion toward the other surface side while maintaining a predetermined interval in the longitudinal direction of the protruding portion. The method according to claim 18 or 19, wherein the method is formed as a non-through hole.   The longitudinal direction of the plurality of cutting blades or the plurality of blade portions formed in the longitudinal direction at intervals so that the dimension in the longitudinal direction and the depth in the thickness direction of each of the plurality of separation portions are the same. The plurality of separation portions are formed using a disc-shaped cutting blade having a plurality of cutting blades having the same dimensions and protruding lengths or a long cutting tool having a plurality of blade portions. The manufacturing method according to claim 18 or 19.   In the length direction of the protrusion, at least two types of separation portions are formed in which the degree of separation of the thickness of the protrusion in the thickness direction is different and / or the formation length in the length direction of the protrusion is different. Thus, as the cutting tool, the longitudinal dimension and / or the protruding length of at least one cutting blade or blade part of a plurality of cutting blades or blade parts formed at intervals in the longitudinal direction is different. A plurality of separating parts using a disc-shaped cutting blade having a plurality of cutting blades or a long cutting tool having a plurality of blade parts, wherein the plurality of separating parts are formed differently from a cutting blade or a blade part The manufacturing method according to claim 18, wherein:

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