JP4444890B2 - Long composite molded product, manufacturing method and manufacturing apparatus - Google Patents

Description

  The present invention includes a first molded body separately formed in advance in a long shape having a front surface and a back surface, and a mounting portion for mounting to the mounted body on the back surface side, and a material softer than the first molded body It is related with the elongate composite molded product provided with the 2nd molded object which was shape | molded from the above, and was joined to the outer peripheral part of the said 1st molded object, and extended in the longitudinal direction of an outer peripheral part, its manufacturing method, and a manufacturing apparatus.

Conventional properties (mechanical properties such as strength, hardness, elasticity, etc., chemical properties such as chemical resistance, corrosion resistance, heat resistance, etc., or electrical properties such as electrical resistance, conductivity, color, gloss, etc. It is known that a long composite molded article is formed by combining molded bodies respectively formed of resins having different design characteristics.
This type of long composite molded product is widely used as various products and parts because it can suitably exhibit the characteristics of the resin constituting each molded body.
For example, it is called molding, garnish, trim, etc. for long composite molded products that mainly improve decorativeness by being attached along the edge of the vehicle body or the peripheral edge of the window plate. There are parts. In addition, there are parts called seal materials, weather strips, gaskets and the like in long composite molded products mainly for enhancing the sealing performance.
Also, for example, the second molded body elongated in the longitudinal direction formed of the soft synthetic resin is bonded to the joint at the tip of the outer peripheral edge of the cross section of the first molded body formed in a predetermined shape with the hard synthetic resin. What constituted the long compound molded article by pasting up with an agent is known.

  By the way, in the long composite molded article, the operation of bonding the second molded body elongated in the longitudinal direction with an adhesive along the joint portion of the outer peripheral edge of the first molded body is particularly the shape of the convex edge portion. Is difficult to change when it changes two-dimensionally or three-dimensionally, and requires a lot of labor and time for the bonding operation, resulting in high costs. Moreover, the 2nd molded object may deform | transform in a three-dimensional direction by the adhesion defect etc. with respect to the junction part of a 1st molded object, or the malfunction which peels may arise.

  In view of the above problems, an object of the present invention is to provide a cushion portion via a root portion of the second molded body at a joint portion of each outer peripheral edge portion provided at a position separated from each other in the width direction of the first molded body. It is to provide a long composite molded product that can be molded at an accurate position, a manufacturing method thereof, and a manufacturing apparatus.

In order to achieve the above object, a first molded body separately formed in advance into a long shape having a front surface and a back surface, and a mounting portion for mounting to the mounted body on the back surface side, from the first molded body Is a long composite molded article comprising a second molded body molded from a soft material, joined to the outer peripheral edge of the first molded body and extending along the longitudinal direction of the outer peripheral edge,
When the composite molded product is attached to the mounted body, the first molded body faces the mounted body at locations apart from each other in the width direction of the first molded body and continues in the longitudinal direction. synthetic resin material so as to have a peripheral portion, and the respective joints to the outer peripheral edge of each successive along the long side direction, and a hollow portion along the longitudinal direction at a position between the outer peripheral edge of the respective Formed by gas injection molding with
In the second molded body, a synthetic resin material different from the molding material of the first molded body is injected from an injection gate facing the back side of the first molded body, and is applied to each joint portion of the first molded body. molded directly as an elongated cushion member, before Symbol cushioning material projects beyond the tip of the husband and root portion joined to the joint portion of the people, are molded integrally with the base portion of each said respective junction With cushion parts,
Each of the cushion members extends in the width direction along the back surface of the first molded body at a position corresponding to the injection gate in a part of the longitudinal direction, and is integrally connected by a connecting portion that crosses the cavity from the back surface side. And
A surface in the width direction of the first molded body is exposed to the outside between the respective cushion portions .
Therefore, according to the long composite molded product according to the invention of claim 1, the second molded body is molded by direct injection molding at the joint portion of each outer peripheral edge of the first molded body, The base portion of each second molded body can be joined and integrated with the joint portion of each outer peripheral edge portion of the first molded body.
As a result, the cushion portion of the second molded body can be molded at an accurate position at the joint portion of each outer peripheral edge portion provided at a position away from each other in the width direction of the first molded body, and each first The surface in the width direction of the first molded body is exposed to the outside between the cushion portions of the two molded bodies.
Moreover, by providing the cavity part along a longitudinal direction in the position between each outer peripheral edge part of a 1st molded object, weight reduction can be achieved by the part corresponded to a cavity part.

The long composite molded product according to the invention of claim 2 is the long composite molded product according to claim 1,
The connecting portion is characterized in that the base portions of the respective cushion materials of the second molded body are connected to each other .
Therefore, according to the long composite molded product according to the invention of claim 2, each second molded body joined to the joint portion of each outer peripheral edge portion of the first molded body, They are integrally connected by a connecting portion of the same material extending in the width direction.
For this reason, according to the long composite molded product according to the invention of claim 2, in addition to the effect of the invention of claim 1, each of the second molded bodies is further improved by the connecting portion with respect to the first molded body. This is effective for preventing the second molded body from peeling off.

The long composite molded product according to the invention of claim 3 is the long composite molded product according to claim 1 or 2,
The attachment part for attaching to a to-be-attached body is integrally protrudingly provided in the position between each elongate cushion part of the 2nd molded object of the back surface side of a 1st molded object .
Therefore, according to the long composite molded product according to the third aspect of the present invention, the mounting portion is integrally projected at a position between the respective elongated cushion portions of the second molded body on the back surface side of the first molded body. By forming the first molded body with a rigid synthetic resin having rigidity, it is possible to stably attach a long composite molded article (for example, window edge molding) to an attached body (for example, a vehicle body panel or a window plate). In addition, each of the second molded bodies (for example, cushion materials) can be held in a desired posture on the mounted body.
For this reason, according to the long composite molded product according to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the longer composite molded product can be stably attached to the mounted body. In addition, each of the second molded bodies can be held in a desired posture on the mounted body.

The long composite molded product according to the invention of claim 4 is the long composite molded product according to any one of claims 1 to 3,
At least one of the terminal portion in the longitudinal direction of the first molded body, characterized in that it is covered by a second molded body and the terminal cover part which is molded integrally connected to an elongated cushion portion of each made of the same material .
Therefore, according to the long composite molded product according to the invention of claim 4, each of the second molded bodies is integrally formed by the terminal cover portion provided so as to cover at least one terminal portion of the first molded body. Link.
For this reason, according to the long composite molded product which concerns on invention of Claim 4, in addition to the effect of invention of any one of Claims 1-3, each 2nd molded object with respect to a 1st molded object Can be bonded more firmly, and it is more effective in preventing peeling.

The long composite molded product according to the invention of claim 5 is the long composite molded product according to any one of claims 1 to 4,
The composite molded article is a vehicle window edge molding that is mounted along a vehicle window opening edge including a vehicle body panel and a window plate,
One cushion part of the 2nd molded object is shape | molded by the vehicle body panel of the said window opening edge, and the other cushion part is shape | molded so that each may contact | abut to the said window-plate surface, It is characterized by the above-mentioned.
Therefore, according to the long composite molded product according to the invention of claim 5, in the state where the window edge molding is mounted along the window opening edge of the vehicle, one cushion portion of the second molded body is placed on the vehicle body panel and the other The cushion portion can come into contact with the window plate.
For this reason, according to the long composite molded product according to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, the respective cushion materials are respectively applied to the vehicle body panel and the window plate. By abutting, it can be mounted without a gap, and the appearance can be improved.

The long composite molded product according to the invention of claim 6 is the long composite molded product according to any one of claims 1 to 5 ,
The second molded body is molded from a synthetic resin material that is more flexible and elastic than the synthetic resin material of the first molded body .
Therefore, according to the long composite molded product according to the invention of claim 6, for example, in the case of a vehicle window edge molding, the molding body as the first molding formed from a hard synthetic resin material is strengthened. Thus, the cushion portion of each second molded body can be held in a desired posture. Furthermore, it becomes possible to give desired flexible elasticity to each of the elongated cushion portions.
Therefore, according to the long composite molded product according to the invention of claim 6, in addition to the effect of the invention of any one of claims 1 to 5, each elongated cushion portion is elastically deformed to be attached. Since it contacts the body panel and window plate as a body without any gaps, it is possible to prevent the appearance from deteriorating.

According to a seventh aspect of the present invention, there is provided a method for producing a long composite molded product, which is separately formed in advance into a long shape having a front surface and a back surface, and an attachment portion for attaching to the attached body on the back surface side. 1 molded body and a second molded body molded from a softer material than the first molded body, joined to the outer peripheral edge portion of the first molded body, and extended along the longitudinal direction of the outer peripheral edge portion. A method for producing a long composite molded article,
And the outer peripheral edge of each successive longitudinally with facing the body to be attached to each other away in the width direction of the first molded body when the composite molded member is attached to the the attached body, before Kiotto s By gas injection molding using a synthetic resin material so as to have respective joint portions that are continuous along the longitudinal direction at the outer peripheral edge portion and a hollow portion along the longitudinal direction at a position between the respective outer peripheral edge portions. Preparing the formed first molded body;
In order to mold the second molded body, using an injection mold having an openable injection gates, sometimes the mold is open, so that the first molded body is the back surface thereof facing the injection gate side was set in the mold to,
Close the mold, and a root portion cavity that forms the root portion of the second molded body between the respective junctions of the mold part and the first molded body within the mold, continuously from the root portion cavity the rewritable formed along a mold cavity having a cushion portion cavity to form a cushion portion protruding beyond said joint portion in the longitudinal direction of the husband outer peripheral edge portion of the people Te, wherein the mold portion in the mold first A part of the longitudinal direction of the communication path that connects the respective molding cavities to the back surface of the molded body and extends in the width direction along the back surface of the first molded body and crosses the cavity from the back surface side. Forming at a position corresponding to the injection gate;
A molten synthetic resin material different from the molding material of the first molded body is injected and filled from the injection gate into the molding cavity, and the root portion is molded and joined to each joint portion of the first molded body, and the cushion is formed. By projecting the part from the respective base part beyond the tip of the joint part and forming it integrally, the second molded body composed of the root part and the cushion part is directly formed on the outer peripheral edge part as an elongated cushioning material. And forming a connecting portion for integrally connecting a part of each of the cushion materials by the communication path ,
It is characterized by including.
Therefore, according to the method for manufacturing a long composite molded product according to the invention of claim 7, the long composite molded product according to claim 1 can be easily manufactured.

The method for producing a long composite molded product according to the invention of claim 8 is the method for producing a long composite molded product according to claim 7 ,
The molten material is respectively injected from a plurality of injection gates arranged at predetermined intervals in the longitudinal direction of the molding cavity, and the molding cavity is filled with the molten material .
Therefore, according to the method for manufacturing a long composite molded product according to the invention of claim 8, the molten material is injected into the molding cavity almost simultaneously from the plurality of injection gates, and is filled without generating an unfilled portion. Can do.
For this reason, according to the manufacturing method of the elongate composite molded product which concerns on invention of Claim 8 , in addition to the effect of invention of Claim 7 , in the junction part of each outer periphery part of a 1st molded object, Each of the second molded bodies integrally having the joined root portion and the elongated cushion portion protruding from the root portion can be formed satisfactorily without molding defects.

A method for producing a long composite molded article according to the invention of claim 9 is a method for producing a long composite molded article according to claim 7 or 8 ,
The communicating passage communicates the root portion cavity of the molding cavity each formed, via said one of the forming Cavity I or said respective mold cavity or communication passage by injecting molten material into the communicating passage The molding cavity is filled with a molten material, and a part of the molten material is flowed and filled into another molding cavity through the communication path to form second molded bodies .
Therefore, according to the manufacturing method of the long composite molded product according to the invention of claim 9 , in addition to the effect of the invention of claim 7 or 8 , the long composite molded product of claim 2 The vehicle window edge molding according to claim 5 can be easily manufactured.

A method for producing a long composite molded article according to the invention of claim 10 is a method for producing a long composite molded article according to claim 9 ,
A molten resin material is injected into the position of the communication path .
Therefore, according to the manufacturing method of the long composite molded product according to the invention of claim 10 , by injecting the molten material at the position of the communication path, along with the flow resistance when the molten material passes through the communication path. Each of the molding cavities can be filled with the molten material flowing well while effectively compensating for the generated pressure loss.
Therefore, according to the method for producing a long composite molded product according to the invention of claim 10 , in addition to the effect of the invention of claim 9 , the molten material is allowed to flow well into each molding cavity. Therefore, the molding failure of the second molded body due to insufficient filling of the molten material can be prevented.

A method for producing a long composite molded article according to the invention of claim 11 is a method for producing a long composite molded article according to claim 9 or 10 ,
On the back surface of the first molded body, a partition wall is formed between the respective outer peripheral edges,
The communication path is provided through the partition wall .
Therefore, according to the method for manufacturing a long composite molded product according to the invention of claim 11 , the molding cavities can be communicated with each other through the communication passages through the partition walls formed in the first molded body.
Thus, according to a long process for producing a composite molded article according to the invention of claim 11, in addition to the invention of claim 9 or 10, the communication passage, the length is not extended, substantially Since the molding cavity communicates with the shortest dimension, the pressure loss (pressure drop) of the molten material can be prevented.

A method for producing a long composite molded article according to the invention of claim 12 is a method for producing a long composite molded article according to any one of claims 7 to 11 ,
Hardness than the second molded body as the first molded body, characterized by using a high synthetic resin molded article.
Therefore, according to the method for producing a long composite molded product according to the invention of claim 12 , when a synthetic resin molded product is used as the first molded product, the temperature drop when the molten material contacts the first molded product. Therefore, the flow of the molten material to the long molding cavity can be kept smooth.
For this reason, according to the manufacturing method of the elongate composite molded product which concerns on invention of Claim 12 , in addition to the effect of the invention of any one of Claims 7-11 , the desired 2nd molded object is favorable Ru can be formed on.

A method for producing a long composite molded article according to the invention of claim 13 is a method for producing a long composite molded article according to any one of claims 7 to 12 ,
A guide body having a guide surface inclined in a direction that intersects the injection direction of the molten material at a non-perpendicular direction is provided in a gate-facing portion of the first molded body facing the injection gate that injects the molten material into the molding cavity, The molten material injected from the injection gate is caused to flow along the guide surface to fill the molding cavity .
Therefore, according to the manufacturing method of a long composite molded product according to the invention of claim 13 , when the molten material is injected from the injection gate and filled in the molding cavity, the molten material is inclined guide surface of the guide body. And flow into the mold cavity. In other words, since the flow direction of the molten material injected from the injection gate intersects the obtuse angle without being orthogonal to the first molded body, the flow pressure of the molten material applied to the first molded body is reduced.
For this reason, according to the manufacturing method of the long compound molded product which concerns on invention of Claim 13 , in addition to the effect of invention of any one of Claims 7-12 , injection of the 2nd molded object by molten material It is possible to prevent the first molded body from being partially deformed during molding.

A method for producing a long composite molded product according to the invention of claim 14 is a method for producing a long composite molded product according to claim 13 ,
A predetermined position of the wall portion forming the hollow portion of the first molded body is a gate facing portion, and a guide body is provided in the gate facing portion .
Therefore, according to the method for manufacturing a long composite molded product according to the invention of claim 14 , in addition to the effect of the invention of claim 13 , the first molded product is provided with a guide body at the gate facing portion. Therefore, distortion such as sink marks is prevented from occurring on the surface of the wall portion on the opposite side to the gate facing portion side of the hollow portion, for example, the design surface, and deterioration of appearance due to distortion such as sink marks is prevented. be able to.

A method for producing a long composite molded article according to the invention of claim 15 is the method for producing a long composite molded article according to claim 13 or 14 ,
The guide body is formed integrally with the gate facing portion of the first molded body .
Therefore, according to the method for manufacturing a long composite molded product according to the invention of claim 15 , in addition to the effect of the invention of claim 13 or 14 , the guide body is integrated with the gate facing portion of the first molded product. Since the thickness of the portion is increased by the amount corresponding to the guide body and the strength is increased, the gate facing portion of the first molded body and its vicinity are locally deformed. Can be prevented.

A method for producing a long composite molded article according to the invention of claim 16 is a method for producing a long composite molded article according to claim 13 or 14 ,
The guide body is formed separately from the first molded body, and the molten material is injected and filled into the molding cavity in a state where the guide body is set in the gate facing portion of the first molded body .
Therefore, according to the method for manufacturing a long composite molded product according to the invention of the sixteenth aspect , the guide body can be formed by selecting a material having characteristics required for the guide body. 2. Good properties such as slipperiness, heat resistance, and release properties can be exhibited for the molten material corresponding to the molded body.
Also, when it is difficult to form the guide body integrally with the first molded body due to factors such as the complicated structure of the mold corresponding to the first molded body, or after the second molded body is formed with a molten material, the clip This is an effective method when it interferes with the mounting of the fixture. In the latter case, the guide body is removed after the second molded body is formed.
Further, when the molten material is injected, the heat of the injected molten material is absorbed by the guide body without directly acting on the gate facing portion of the first molded body, and is conducted through the guide body. . For this reason, the malfunction which the gate opposing part of a 1st molded object overheats with the heat | fever which a molten material has, and deform | transforms is prevented.
As described above, according to the method for producing a long composite molded product according to the invention of claim 16 , in addition to the effect of the invention of claim 13 or 14 , the molten material is good separately from the first molded product. A suitable guide body can be selected in consideration of characteristics such as excellent slipperiness, heat resistance and releasability.

A method for producing a long composite molded product according to the invention of claim 17 is a method for producing a long composite molded product according to any one of claims 13 to 16 ,
The width dimension of the guide body is set to a dimension that does not fall below the opening width dimension of the injection gate .
Therefore, according to the method for manufacturing a long composite molded product according to the invention of claim 17 , the injection pressure of the molten material injected from the opening of the injection gate is substantially wide on the inclined guide surface of the guide body. Can be received in area. As a result, the pressure per unit area acting on the inclined guide surface of the guide body is reduced. For this reason, damage to the guide body can be prevented, and as a result, the effect of preventing deformation, destruction, etc. of the first molded body is great.
In addition, when the molten material is injected, the molten material (liquid) is prevented from leaking in the longitudinal direction beyond the guide surface of the guide body, and the molten material (liquid) flows along the guide surface of the guide body. Then, the molding cavity is filled.
As described above, according to the method for producing a long composite molded product according to the invention of claim 17 , in addition to the effect of the invention of any one of claims 13 to 16 , the inclined guide surface of the guide body. By reducing the pressure per unit area acting on the guide, it is possible to satisfactorily prevent the guide body itself from being damaged or the first molded body from being deformed or broken.

A method for producing a long composite molded product according to the invention of claim 18 is a method for producing a long composite molded product according to any one of claims 13 to 17 ,
The guide surface of the guide body is formed as a smooth surface .
Therefore, according to the method for manufacturing a long composite molded product according to the invention of claim 18 , the molten material has an excessive flow resistance on the guide surface of the guide body by forming the guide surface of the guide body on a smooth surface. It flows smoothly without receiving.
As described above, according to the method for producing a long composite molded product according to the invention of claim 18 , in addition to the effects of the invention of any one of claims 13 to 17 , in the injection of the molten material, The problem that the flow pressure of the molten material acting on the first molded body through the guide body excessively increases can be prevented, and the effect of preventing deformation of the first molded body is great.

According to a nineteenth aspect of the present invention, there is provided a manufacturing apparatus for a long composite molded product, which is separately formed in advance in a long shape having a front surface and a back surface, and a mounting portion for mounting to a mounted body on the back surface side. A long composite comprising a molded body and a second molded body molded from a softer material than the first molded body, joined to the outer peripheral edge of the first molded body and extending in the longitudinal direction of the outer peripheral edge. An apparatus for manufacturing a molded article,
The apparatus includes a mold composed of an open closed Possible cavity mold and the core mold,
The one mold includes an injection gate for injecting a synthetic resin material softer than the molding material of the first molded body to mold the second molded body, and either one of the molds and the outer peripheral edge of each successive longitudinally with facing the body to be attached at a distance from each other in the width direction of the first molded body when the previous SL composite molded attached to the object to be attached body, before Gas injection using a synthetic resin material so that each outer peripheral edge portion has a continuous joint portion along the longitudinal direction and a cavity portion along the longitudinal direction at a position between the outer peripheral edge portions. first molded body formed by molding toward the back surface to the exit gate side is capable Se Tsu DOO,
Wherein when closed by setting the first molded body on either one of the forming die, before Symbol said second molded body between the respective junction with the mold of the mold portion of the first molded body An outer peripheral edge portion of the first molded body is a molding cavity comprising a base portion cavity that forms a root portion of the first molded body and a cushion portion cavity that forms a cushion portion that protrudes beyond the joint portion continuously from the root portion cavity. Rutotomoni are respectively formed along the length side direction,
A communication path extending in the width direction along the back surface of the first molded body and extending across the cavity from the back surface side is located at a position corresponding to the injection gate in a part of the molding cavity in the longitudinal direction. Formed between the mold part and the back surface of the first molded body, and the molding cavities communicate with each other through the communication path.
It is characterized by that.
Therefore, the method for producing a long composite molded product according to claim 7 can be easily carried out using the apparatus for producing a long composite molded product according to the invention of claim 19 .

  Next, the best mode for carrying out the present invention will be described with reference to examples.

A first embodiment of the present invention will be described with reference to FIGS.
In the first embodiment, a case where the long composite molded product is a window edge molding 20 for a vehicle is illustrated.
In FIG. 5 showing a perspective view of a part of the vehicle as viewed from the front, the front pillar panel 2 and the roof panel 3 as vehicle body panels have windows corresponding to window plates 8 (also called front window glass). A frame portion 5 is formed.
As shown in FIGS. 1 to 3, the window frame portion 5 includes a peripheral wall portion 7, and a flange portion 6 that protrudes inward from the peripheral wall portion 7 and forms the window opening 4. Yes. In the left and right side portions of the window frame portion 5, the peripheral wall portion 7 is formed in an inclined shape having a height lower than the flange portion 6 and gradually lowering toward the upper portion.
A dam rubber 9 made of an elastic body is bonded to the window plate 8 that is mounted on the window frame portion 5 and closes the window opening 4 along the peripheral edge of the back surface thereof. Then, the window plate 8 is fitted into the window frame portion 5, and the dam rubber 9 is pressed against the outer surface of the flange portion 6 so as to be elastically deformed appropriately. It is fixed to the frame part 5.

A vehicular window edge molding 20 as a long composite molded product includes a molding body 21 as a first molding, and cushion materials 30 and 33 as second moldings made of a material different from the molding body 21. and it is configured to include a one piece a. The window edge molding 20 includes the outer peripheral edge of the window plate 8 and the peripheral wall portion 7 of the window frame portion 5 in the portion of the window frame portion 5 on the left and right side portions of the upper and lower portions and the left and right side portions of the window frame portion 5. It is formed so that attachment is possible along the clearance gap S between.

As shown in FIGS. 1 to 4, the molding body 21 as a first molded body includes a long covering portion 22 that covers substantially the entire gap S and has a predetermined width, and a back surface of the covering portion 22. And a mounting portion 40 which is continuous in the longitudinal direction of the side and protrudes in a substantially plate shape. The molding body 21 is integrally formed by injection molding, gas injection molding, or the like using a hard synthetic resin as a material, or by light alloy die casting or thixo molding. Examples of the hard synthetic resin for forming the molding body 21 include ABS resin, PP resin, AES resin, PPO resin, PC resin, PA resin, or alloy resin thereof. In addition, the resin material is not particularly limited when weatherproof coating or surface treatment is performed on the surface of the molding body 21, particularly the exterior design portion of the cover portion 22, but when the surface treatment is not performed, the molding body 21. Is preferably formed of AES resin, PP resin or the like having excellent weather resistance.
On the other hand, when the molding body 21 is a light alloy molded product, a die-cast molded product such as an aluminum alloy, a zinc alloy, or a magnesium alloy or a thixo molded product of a magnesium alloy can be used, and a molded product of a hard synthetic resin is used. Thinning can be achieved compared to.
Moreover, in this Example 1, what uses a hard synthetic resin is illustrated and the cover part 22 of the molding main body 21 is a cavity between the back wall 26 integrally formed along the longitudinal direction. It has a portion 23 and is formed in a hollow shape by gas injection molding.

Now, in the outer peripheral portion of the cross section of the molding body 21 as the first molded body, a convex edge having joint portions for integrally joining the cushion materials 30 and 33 as the second molded body at a plurality of locations separated from each other. A component is formed.
In the first embodiment, convex edge constituent portions having joint portions at two left and right positions on the paper surface in FIG. 1 are provided. Among these convex edge constituent parts, one convex edge constituent part is formed by a cough constituent part 28 that protrudes from one end in the width direction of the back wall 26 of the cover part 22 of the molding body 21 toward the outer surface of the window plate 8. It is configured. The other convex edge constituent part is constituted by a convex edge constituent part 29 protruding from the window frame side of the exterior design part of the cover part 22. Further, in each of the cough component 28 and the convex edge component 29, the vicinity including the joints (tip portions) 281 and 291 is the crest 28A and the convex edge 29A of the window edge molding 20 as the final product. Expansion joints 282 and 292 are formed by being formed smaller than the outer dimensions.

As shown in FIGS. 1 to 3, the cushion material 30 as the second molded body to be joined to the expansion joint portion 282 including the joint portion 281 of the cough component portion 28 is made of a material different from that of the molding body 21, for example, a molding material. It is formed by injection molding of a soft synthetic resin (for example, a thermoplastic elastomer such as TPE resin) that is softer and more elastic than the main body 21. At the same time as the injection molding of the cushion material 30, the cushion material 30 includes a root portion 31 having a substantially U-shaped cross section joined integrally to an extended joint portion 282 including the joint portion 281 of the cough component portion 28, An elongated cushion portion 32 is formed integrally with the base portion 31 so as to be elastically deformed and come into contact with the outer surface of the window plate 8.
In other words, the cough portion 28A of the window edge molding 20 as the final product is configured by the root portion 31 of the cushion material 30 formed in the expansion joint portion 282 including the cough component portion 28 of the molding body 21 and the joint portion 281. An elongated cushion portion 32 is formed so as to protrude from the root portion 31.

  Further, the cushion material 33 as the second molded body to be joined to the expansion joint portion 292 including the joint portion 291 of the convex edge constituting portion 29 of the molding body 21 is formed by injection molding of a soft synthetic resin of the same material as the cushion material 30. Is formed. At the same time as the cushion material 33 is injection-molded, the cushion material 33 includes a root portion 35 having a substantially U-shaped cross section joined integrally to an extended joint portion 292 including the joint portion 291 of the convex edge constituting portion 29, and An elongated cushion portion 36 that protrudes from the root portion 35 and protrudes so as to come into contact with the top surface of the peripheral wall portion 7 of the window frame portion 5 or the outer surface of the front pillar panel 2 continuing to the top portion is integrated. Have. In other words, the convex edge portion 29A of the window edge molding 20 as the final product is constituted by the convex edge constituting portion 29 of the molding main body 21 and the root portion 35 of the cushion material 33, and is projected from the root portion 35 to be an elongated cushion. A portion 36 is formed.

As shown in FIGS. 3 and 4, the back wall 26 of the cover portion 22 of the molding body 21 has a plurality in the width direction across the back wall 26 of the molding body 21 at predetermined intervals along the longitudinal direction. The connecting portion 37 is integrally joined. The connecting portions 37 are formed of the same material as the cushion materials 30 and 33 and are formed simultaneously with the injection molding of the cushion materials 30 and 33. And each connection part 37 each penetrates the penetration part 46 (through-hole) of the attachment part 40 (equivalent to the attachment part or partition wall of this invention), and the both ends are each root part of both the cushion materials 30 and 33 31 and 35 are integrated. Thereby, both the cushion materials 30 and 33 are integrally connected.
Moreover, in this Example 1, as shown in FIG. 4, the terminal cover part 38 is integrally formed in the terminal part 21a of the lower part of the mall main body 21 so that the terminal part 21a may be covered. The terminal cover portion 38 is formed by injection molding of a soft synthetic resin made of the same material as the cushion materials 30 and 33, and is integrally formed by connecting the end portions of both the cushion materials 30 and 33. In the cushion material 30, a clear boundary is not necessarily required between the cushion portion 32 and the root portion 31, and the cough component portion 28 made of hard synthetic resin is prevented from coming into direct contact with the window plate 8. The part to be performed is the cushion part 32, the other part is the root part 31, and the same applies to the cushion material 33.

Moreover, in this Example 1, as shown in FIGS. 1-4, on the back wall 26 of the cover part 22 of the molding main body 21, in order to attach the window edge molding 20 to a vehicle body panel, both cushion materials 30 and 33 are provided. A mounting portion 40 (corresponding to a mounting portion or a partition wall according to the present invention) located between and having a substantially plate shape is integrally projected. A through portion 46 filled with a part of the soft synthetic resin for forming the connecting portion 37 is formed at a predetermined position of the mounting portion 40.
As shown in FIGS. 1, 2, and 4, the attachment portion 40 has a plurality of first attachment portions 41 and second attachment portions 43 alternately in the longitudinal direction, and the first attachment portion 41 and the first attachment portion 43. 2 It has the continuous part 45 which connects the attachment part 43 integrally and continuously, and is formed in the meandering shape in the longitudinal direction.
First attachment portions 41 are provided at a total of three locations in the vicinity of both ends in the longitudinal direction of the attachment portion 40 and an intermediate portion, and second attachment portions 43 are provided at two intermediate portions of each first attachment portion 41. When the window edge molding 20 is attached along the gap S between the outer peripheral edge of the window plate 8 and the peripheral wall portion 7 of the window frame portion 5, the second attachment is more than the first attachment portion 41. The portion 43 is configured to be disposed at a position close to the outer peripheral edge of the window plate 8.

As shown in FIG. 1 and FIG. 4, the plurality of first attachment portions 41 of the attachment portion 40 are square hole shapes that can be engaged with the first attachment 50 that is locked to the peripheral wall portion 7 of the window frame portion 5. The engaging portions 42 are respectively formed.
Further, as shown in FIGS. 2 and 4, the plurality of second mounting portions 43 of the mounting portion 40 have a square hole shape that can be engaged with a second mounting tool 60 that is locked to the outer peripheral edge of the window plate 8. The engaging portions 44 are respectively formed.
In addition, the 1st fixture 50 consists of spring steel plates etc., for example, has the insertion groove into which the 1st attachment part 41 is inserted, and is formed in cross-sectional substantially U shape. Of the side plate portions of the first fixture 50, one side plate portion located on the window plate 8 side is engaged with the square hole-like engagement portion 42 of the first attachment portion 41 to prevent the first fixture 50 from coming off. The locking claw 56 is cut and raised. Further, the first fixture 50 is bonded and fixed to the peripheral wall portion 7 of the window frame portion 5 in advance by a double-sided adhesive tape or the like at the side plate portion on the window frame portion side.
Moreover, the 2nd attachment tool 60 has the insertion groove into which the 2nd attachment part 43 is inserted, and the 2nd attachment tool 60 is formed from the synthetic resin etc. which are substantially U-shaped in cross section, and are rich in elasticity. Of the two side plate portions of the second fixture 60, one side plate portion located on the window plate 8 side is engaged with the square hole-like engagement portion 44 of the second attachment portion 43 to prevent the second fixture 60 from coming off. A locking claw 66 is formed. The second fixture 60 has a pair of arms that are elastically deformable from both end portions of the side wall portion on the window plate 8 side toward the peripheral edge portion of the window plate 8 and extend in a substantially square shape. (A portion indicated by a two-dot chain line in the engaging portion 44 in FIG. 4). A window plate side locking portion 68 that engages with the back and peripheral end surfaces of the peripheral edge of the window plate 8 to prevent it from coming off is formed at the distal ends of the pair of arm portions.

The window edge molding 20 according to the first embodiment is configured as described above.
Therefore, when attaching the window edge molding 20 along the gap S between the outer peripheral edge of the window plate 8 attached to the window frame part 5 of the vehicle body panel and the peripheral wall part 7 of the window frame part 5, the window edge in advance The second attachment 60 is attached to the second attachment portion 43 of the molding 20 and the window edge molding 20 is pressed toward the gap S to be attached.
In addition, as shown in FIG. 1, the 1st fixture 50 is adhere | attached and fixed to the surrounding wall part 7 of the window frame part 5 beforehand with the side-plate part by the side of a window frame part via a double-sided adhesive tape. By the pressing, the engaging portion 42 of the first mounting portion 41 is fixed by being locked to the locking claw 56 of the first mounting tool 50.
On the other hand, as shown in FIG. 2, the window plate side locking portions 68 of the pair of arm portions of the second fixture 60 are elastically engaged with the back side edge portion of the outer peripheral edge of the window plate 8. Accordingly, the window edge molding 20 is attached along the gap S.

In the state in which the window edge molding 20 is attached as described above, the cushion material 30 in which the root portion 31 is joined to the extended joint portion 282 including the joint portion 281 of the cuff component portion 28 of the molding body 21 is an elongated cushion. The portion 32 comes into contact with the outer surface of the window plate 8 and elastically deforms to contact (closely) without a gap.
In addition, the cushion material 33 joined at the root portion 35 to the extended joint portion 292 including the joint portion 291 of the convex edge constituting portion 29 of the molding body 21 has a slender cushion portion 36 as a vehicle body panel as an attached body, that is, The top of the peripheral wall 7 of the window frame 5 or the outer surface of the front pillar panel 2 continuous with the top is elastically deformed to contact (closely) without a gap.

The molding body 21 is formed with a required strength by a rigid synthetic resin having rigidity, while the cushion materials 30 and 33 are formed of a soft synthetic resin that is softer and more elastic than the molding body 21, and the cushion material 30, Desired cushioning properties can be imparted to the 33 cushion portions 32 and 36. For this reason, when the window edge molding 20 is mounted, the coating film of the front pillar panel 2 as the vehicle body panel and the window plate 8 are prevented from being damaged. It is possible to prevent the occurrence of a gap in the case. Furthermore, it is possible to prevent the occurrence of an unexpected gap between the vehicle body panel and the window plate 8 and to prevent the appearance from being deteriorated due to the gap.
Further, even if there are variations due to the production and assembly of the vehicle body panel and the window plate 8 and variations in the manufacture of the window edge molding 20 itself, these variations are eliminated by the cushion portions 32 of both the cushion materials 30 and 33 of the window edge molding 20. 36 can be absorbed by elastic deformation. In other words, the cushion portions 32 and 36 of the cushion materials 30 and 33 are elastically deformed and come into contact (close contact) with the vehicle body panel and the window plate 8 without a gap, thereby preventing deterioration in appearance.

  When the vehicle travels, rainwater flowing toward the left and right side portions of the outer surface of the window plate 8 is blocked by the damming portion 28A and then flows down by being guided by the damming portion 28A or the upper roof panel 3. It flows toward. For this reason, the rain water is prevented from flowing over (crossing) the window edge molding 20 toward the side window plate (side glass) of the vehicle, and there is no problem of deteriorating the side visibility.

In particular, the cushion members 30 and 33 joined to the expansion joint portions 282 and 292 including the joint portions 281 and 291 of the cough component portion 28 and the convex edge component portion 29 are formed simultaneously with the injection molding. The base portions 31 and 35 having a substantially U-shaped cross section integrally joined to the extended joint portions 282 and 292 including the joint portions 281 and 291 of the edge constituting portion 29, and the base portions 31 and 35 are stretched. The elastically deformable elongated cushion portions 32 and 36 are integrally provided.
Accordingly, the cushion members 30 and 33 have a wide extended joint portion 292 including the joint portion 281 including the joint portion 281 of the crest constituent portion 28 or the joint portion 291 of the convex edge constituent portion 29. They are firmly joined and integrated with each other in the joining area. For this reason, the malfunction which the cushion materials 30 and 33 peel from the cough component part 28 or the convex edge component part 29 unexpectedly can be prevented favorably. Note that when the material constituting the molding body 21 and the material constituting the cushion materials 30 and 33 are compatible, both are firmly joined by welding without special treatment at the joint. In the case where it does not have solubility, a strong bond can be obtained by a process such as forming a primer layer in advance in a corresponding part of the molding body 21.

Further, in the first embodiment, the cushion members 30 and 33 provided at positions apart from each other of the molding body 21 are integrally formed by a plurality of connecting portions 37 integrally joined to the back wall 26 of the cover portion 22. It is connected to. For this reason, the cushion materials 30 and 33 are more firmly coupled to the molding body 21, and the effect of preventing the cushion materials 30 and 33 from peeling off is great.
Further, in the first embodiment, the terminal cover portion 38 formed integrally so as to cover the lower terminal portion 21a of the molding body 21 is formed by injection molding of a soft synthetic resin made of the same material as the cushion materials 30 and 33. The end portions of the cushion materials 30, 33 are integrally connected. For this reason, the cushion materials 30 and 33 are more firmly coupled to the molding body 21, and a further effect is exhibited in preventing the cushion materials 30 and 33 from peeling off.

Next, a manufacturing method for manufacturing the window edge molding 20 and a manufacturing apparatus used for the manufacturing method will be described with reference to FIGS. FIG. 6 is a plan view of the cavity mold with a core mold to be described later removed for easy understanding. 7 and 8 are cross-sectional views of a corresponding portion taken along line VII-VII in FIG. 9 and 10 are cross-sectional views of a corresponding portion taken along line IX-IX in FIG. Further, FIGS. 7 and 9 are sectional views showing a state before injecting a molten material, which will be described later, and FIGS. 8 and 10 are sectional views showing a state in which the molten material is filled.
That is, in FIG. 6, FIG. 7 and FIG. 9 showing an injection mold apparatus made of metal such as steel as a manufacturing apparatus for window edge molding, one mold 71 among both molds performing mold closing and mold opening operations. Includes a core mold 71A and a stripper plate 71B, and the core mold 71A has an undercut portion formed at a predetermined position of the window edge molding 20, that is, a back wall of the covering portion 22 of the molding body 21 at a predetermined position. The slide molds 78 and 79 are assembled so as to be slidable (advancing and retracting) at portions corresponding to one side edge of the 26th side and the cushion materials 30 and 33, respectively.
In the cavity mold 72 as the other mold, the cover part 22 of the molding body 21 as the first molded body is in contact with the mold surface and positioned and set.
Further, as shown in FIG. 9, when the mold is in a closed state, the tip of the pressing portion 711 of the core mold 71 </ b> A contacts the back wall 26 of the molding body 21 to press the molding body 21 against the cavity mold 72. Since the cavity portion 23 is formed between the back wall 26 and the cover portion 22, the pressing force of the core mold 71 </ b> A is somewhat absorbed by the elastic deformation of the back wall 26, and the pressing force is directly transmitted to the covering portion 22. There is nothing. As a result, even if the cover portion 22 contacts the mold surface of the cavity mold 72, damage or the like is prevented. This is particularly effective when the cover 22 is painted.
As described above, the molding body 21 made of hard synthetic resin has a crest component 28 protruding from the back wall 26 of the cover 22 and a convex edge component 29 protruding from one side edge of the cover 22. Has been. In each of the cough component 28 and the convex edge component 29, the vicinity including the joints 281 and 291 is compared with the outer dimensions of the crest 28A and the convex edge 29A of the window edge molding 20 as the final product. Expansion joints 282 and 292 are formed by reducing the size, respectively.

  As shown in FIGS. 7 and 9, the core mold 71A, the cavity mold 72, the slide mold 78, the core mold 71A, the cavity mold 72 are closed, and the slide molds 78 and 79 are advanced to the advanced position. 79 and the molding body 21 are formed around the cough component 28 and the convex edge component 29 of the molding body 21 by the cough component 28 and the mold part 79a of the molding die, and the protruding edge component 29 and the molding body 21. The base part cavities 83 and 86 for forming the base parts 31 and 35 and the cushion part cavities 84 and 87 for forming the elongated cushion parts 32 and 36 are communicated with each other by the mold part 78a of the mold. Each is formed. The base cavities 83 and 86 and the cushion cavities 84 and 87 form molding cavities 82 and 85 corresponding to the cushion materials 30 and 33 of the window edge molding 20. As a result, the molding cavities 82 and 85 have a larger cross-sectional area than the cavities of only the cushion part cavities 84 and 87, thereby reducing the resistance when the fluid (ie, the molten material) flows, as will be described later. In addition, the molten material can flow smoothly.

Further, a communication path 88 corresponding to the connecting portion 37 of the window edge molding 20 is formed between the back wall 26 of the covering portion 22 of the molding body 21 and the pressing portion 711 of the core mold 71A. The communication path 88 passes through the through-hole 46 provided through the mounting portion 40 of the molding body 21, and one end thereof communicates with one root portion cavity 83 and the other end communicates with the other root portion cavity 86. ing.
Further, in a state where the core mold 71A and the cavity mold 72 are closed, a terminal molding cavity 81 corresponding to the terminal covering portion 38 is formed between the core mold 71A and the cavity mold 72. And the one end part of each shaping | molding cavity 82 and 85 is each connected to the terminal shaping | molding cavity 81 (refer FIG. 6).
The terminal molding cavity 81 is provided with an injection gate 77, and more preferably, at least one of the molding cavities 82 and 85 and the communication path 88 is provided with an injection gate.
In the first embodiment, injection gates 75 and 76 are provided at a plurality of locations of a plurality of communication paths 88 provided at predetermined intervals in the longitudinal direction or one molding cavity 82 located in the vicinity thereof.
Each of the injection gates 75, 76, 77 is communicated with the runner passage 73 via a respective sub sprue path 74. The runner passage 73 is communicated with an injection nozzle of an injection molding machine via a main sprue passage (not shown) (see FIG. 7).

That is, the molten material made of a soft synthetic resin supplied from the injection nozzle flows into the runner passage 73 through the main sprue passage and then into the sub sprue passages 74.
The molten material injected from the injection gate 77 flows into the molding cavities 82 and 85 while filling the terminal molding cavities 81 through the terminal molding cavities 81.
Further, the molten materials respectively injected from the injection gates 75 and 76 are filled in one molding cavity 82 and flow to the other molding cavity 85 through a plurality of communication paths 88.
As a result, the molten material is filled in the molding cavities 82 and 85, the terminal molding cavities 81 and the communication passages 88 without any shortage.
As shown in FIGS. 8 and 10, the molten material filled in the molding cavities 82 and 85, the terminal molding cavities 81, and the communication passages 88 is cooled and solidified, so that each part of the molding body 21 has The cushion members 30 and 33 and the connecting portions 37 are integrally joined, and the terminal cover portion 38 is integrally joined to the terminal portion 21a of the molding main body 21, whereby the window edge molding 20 is manufactured. Is done.
Thereafter, the core mold 71A and the cavity mold 72 are opened, and the window edge molding 20 is removed while the slide molds 78 and 79 are retracted to the retracted position. This completes one cycle of manufacturing the window edge molding 20.

As described above, the window edge molding 20 described in the first embodiment can be easily manufactured by the manufacturing method using the injection mold apparatus as the manufacturing apparatus for window edge molding.
That is, according to the manufacturing method of the first embodiment, in the cough component 28 and the convex edge component 29 of the molding body 21, there is a vicinity including the joints 281 and 291 of the cough component 28 and the convex edge component 29. The expansion joints 282 and 292 are formed by being formed smaller than the outer dimensions of the crest portion 28A and the convex edge portion 29A of the window edge molding 20 as the final product. Then, the cross-sectional area of the molding cavities 82 and 85 is enlarged by an amount corresponding to the root cavities 83 and 86 provided at the positions corresponding to the extended joints 282 and 292, and the molten resin is elongated in the molding cavities 82 and 85. Since the pressure loss when flowing in the direction is small and the flow resistance is reduced as a result, the flow of the molten resin in the molding cavities 82 and 85 becomes smooth.
Therefore, the root portion 31 having a substantially U-shaped cross section joined integrally to the expanded joint portions 282 and 292 including the joint portions 281 and 291 of the crest constituting portion 28 and the convex edge constituting portion 29 of the molding body 21. , 35 and the elastically deformable elongated cushion portions 32, 36 projecting from the root portions 31, 35 are integrated into unfilled portions (commonly called “shorts”). Can be satisfactorily formed into a predetermined size and shape. In other words, the root cavities 83 and 86 serve as runners that use a part of the molding body 21 as a flow path for the molten resin.

Further, the molding cavities 82 and 85 are communicated with each other by a plurality of communication passages 88 in the base portion cavities 83 and 86 so that the molten material flows from the base portion cavity 83 to the root portion cavity 86 through the communication passages 88. It has become. For this reason, when the molding cavity 85 is not filled, the molten material continues to flow into the root cavity 86 due to the pressure difference with the molding cavity 82. For this reason, the molding material 85 is also filled with the molten material in a state where the pressure of the molten material is maintained substantially uniform between the molding cavities 82 and 85. As a result, the molding cavities 82 and 85 are filled with the molten material without a shortage, and the desired cushion materials 30 and 33 can be formed satisfactorily.
Further, one end of each molding cavity 82, 85 is communicated with the terminal molding cavity 81. For this reason, after the molten material injected into the terminal molding cavity 81 is filled in the terminal molding cavity 81, a part of the molten material flows into the molding cavities 82 and 85 and is injected from other positions to form the molding cavity 82, The molten material flowing in 85 is merged and filled. As a result, the molding cavities 82 and 85 and the terminal molding cavities 81 are filled with the molten material without a shortage, and the desired cushioning materials 30 and 33 and the terminal cover 38 can be formed satisfactorily.

In addition, injection gates 75 and 76 are provided at a plurality of locations in one molding cavity 82 located in the vicinity of a plurality of communication passages 88 provided at predetermined intervals in the longitudinal direction. For this reason, the molten material is injected substantially simultaneously from the injection gates 75, 76, 77 into the one molding cavity 82 and the terminal molding cavity 81. Therefore, the molten material is filled in the terminal molding cavity 81, one molding cavity 82, the plurality of communication passages 88, and the other molding cavity 85 in a short time.
In addition, by providing the injection gates 75 and 76 in the communication path 88 or in the vicinity of the communication path 88, the molding cavity 85 can effectively compensate for the pressure loss generated when the molten material passes through the communication path 88. The molten material can be made to flow well.
Further, as described above, when the molten material flows without being insufficiently filled by the molding cavities 82 and 85 having a substantially enlarged cross-sectional area, another injection gate 75 is used by using one portion of the injection gate 77. , 76 can be omitted. In this case, there is an advantage that the problem of welds caused by using a plurality of injection gates does not occur.

Further, the molding body 21 is made of hard synthetic resin in the first embodiment among hard materials. For this reason, the molding body 21 functions as a heat insulating material, and when the molten material comes into contact with the molding body 21 in the molding cavities 82 and 85, it is prevented that the molten material is rapidly deprived of heat and the temperature of the molten material is lowered and solidified. can do. Therefore, the molten material can flow for a relatively long time, and the flow of the molten material in the long molding cavities 82 and 85 is maintained smoothly.
Further, when the molding body 21 is made of a light metal alloy or the like, the molten body 21 that has been heated to a temperature exceeding the normal temperature is set in an injection mold so that the injected molten material can be drastically changed. A temperature drop can be prevented in substantially the same manner as described above.
As described above, by preventing a rapid temperature drop of the molten material, the molten material flows smoothly into each molding cavity 82, 85, each communication path 88, and the terminal molding cavity 81, and is filled as desired. The cushion materials 30 and 33, the connection part 37, and the terminal cover part 38 can be formed favorably.

Next, a second embodiment of the present invention will be described with reference to FIGS.
In the second embodiment, the molding main body 21 is caused by the flow pressure at the time of injection molding of the molten material for forming the cushion materials 30 and 33 as the second molding with respect to the molding main body 21 as the first molding. It is an object of the present invention to provide a manufacturing method capable of preventing the partial deformation of 21.
That is, in some cases, a material having optimum characteristics cannot be used as a material for forming the molding body 21 as the first molded body.
For example, when the molding body 21 is inevitably made of a material that is not strong enough (a material with high hardness but poor toughness, or a material with high toughness but low hardness), or the molding as the first molded body In some cases, the thickness of the portion of the main body 21 facing the gate must be reduced. In this case, when the molding body 21 as the first molded body is formed of a material that is not strong enough, the molten material for forming the cushion materials 30 and 33 as the second molded body is molded. When the cavities 82 and 85 are injection-filled to form the cushion materials 30 and 33 as the second molded body, an excessive injection pressure exceeding the limit acts on the gate-facing portion of the molding body 21 as the first molded body. The main body 21 may be locally deformed or damaged.
In particular, when the gate-facing portion of the molding body 21 facing the injection gates 75 and 76 intersects the injection direction of the molten material at a substantially right angle, the flow pressure at the injection of the molten material remains the same as the molding body. 21 may act on the gate-facing portion of 21 and locally deform or damage the gate-facing portion of the molding body 21 and its vicinity.
Therefore, in the second embodiment, partial deformation of the molding main body 21 to which the fluid pressure of the molten material for injection molding the cushion materials 30 and 33 is applied to the molding main body 21 is to be prevented.

FIG. 11 is a cross-sectional view illustrating a state in which the molding material according to the second embodiment is injected and filled with a molten material. FIG. 12 is an explanatory view showing the relationship between the gate facing portion of the molding body as the first molded body, the guide body, and the injection gate.
As shown in FIGS. 11 and 12, in this second embodiment, the gate facing portion of the molding body 21 facing the injection gates 75 and 76 for injecting the molten material into the molding cavities 82 and 85, in this second embodiment, A guide body 101 having a guide surface 100 inclined in a direction crossing non-perpendicular to the injection direction of the molten material is provided at a predetermined portion of the back wall 26 of the cover portion 22 having the cavity portion 23 of the molding body 21. The molten material injected from the gates 75 and 76 flows along the guide surface 100 and is filled in the molding cavity 85.
In particular, the flow direction of the molten material injected from the injection gates 75 and 76 is not perpendicular to the back wall 26 of the cover portion 22 of the molding body 21, for example, the flow direction of the molten material and the back wall 26 of the cover portion 22 The inclination angle of the guide surface 100 of the guide body 101 is set so that the angle θ formed by the guide body exceeds 90 degrees, and preferably becomes an obtuse angle of about 120 to 150 degrees.
Further, in the second embodiment, as shown in FIG. 12, the guide body 101 is formed integrally with a gate facing portion of the molding body 21, that is, a predetermined portion of the back wall 26 of the cover portion 22 having the cavity portion 23. The guide surface 100 is connected to the back wall 26 by a smoothly continuous curved surface.
Moreover, the width dimension of the guide body 101 with respect to the longitudinal direction of the molding body 21 is set to an appropriate size so that it does not fall below the opening width dimension of the injection gates 75 and 76.
Further, the guide surface 100 of the guide body 101 is formed as a smooth surface.
Since other configurations of the second embodiment are configured in substantially the same manner as the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.
In FIG. 11, reference numerals 281, 291, 282, and 292 of the joint portions of the mall main body 21 and the extended joint portions including the joint portions are omitted.

Therefore, in the second embodiment, when the molten material is injected from the injection gates 75 and 76 and filled into the molding cavities 82 and 85, the molten material flows along the inclined guide surface 100 of the guide body 101. The molding cavity 85 is filled. In other words, the flow direction of the molten material injected from the injection gates 75 and 76 intersects at an obtuse angle without being orthogonal to the back wall 26 of the cover portion 22 of the molding body 21. For this reason, the flow pressure of the molten material acting on the back wall 26 of the cover portion 22 of the molding body 21 is reduced. As a result, it is possible to prevent the molding body 21 from being partially deformed on the back wall 26 of the covering portion 22 during the injection molding of the cushion materials 30 and 33 using a molten material.
Further, in the molding body 21, a predetermined portion of the back wall 26 of the cover portion 22 having a hollow portion 23 as a hollow portion is a gate facing portion, and a guide body 101 is integrally provided at the gate facing portion. For this reason, since the guide body 101 is formed in the wall part on the opposite side to the back wall 26 of the cover part 22, ie, the position away from the surface of the exterior design part of the cover part, distortion such as sink marks is formed on the surface. Occurrence is prevented.
Moreover, the guide body 101 is integrally formed in the part of the back wall 26 of the cover part 22, The thickness of the said part becomes thick by the part corresponding to the guide body 101, and intensity | strength is increased. For this reason, the gate facing portion of the molding body 21, that is, the back wall 26 of the covering portion 22 and its vicinity are prevented from being locally deformed.

The width dimension of the guide body 101 with respect to the longitudinal direction of the molding body 21 is set to a size that does not fall below the opening width dimension of the injection gates 75 and 76. For this reason, the injection pressure of the molten material injected from the openings of the injection gates 75 and 76 can be received over a substantially wide area of the inclined guide surface 100 of the guide body 101. As a result, the pressure per unit area acting on the inclined guide surface 100 of the guide body 101 is reduced. For this reason, damage to the guide body 101 can be prevented, and as a result, the effect of preventing deformation and destruction of the molding body 21 is great.
Further, when the molten material is injected, the molten material (liquid) is prevented from leaking in the longitudinal direction beyond the guide surface 100 of the guide body 101, and the molten material (liquid) is prevented from leaking in the guide surface 100 of the guide body 101. And the molding cavity 85 is filled.
Further, since the guide surface 100 of the guide body 101 is formed as a smooth surface, the molten material smoothly flows on the guide surface 100 of the guide body 101 without receiving excessive flow resistance. As a result, when the molten material is injected, a problem that the material pressure acting on the molding body 21 via the guide body 101 increases excessively is prevented.

In the second embodiment, the guide body 101 is formed integrally with a gate facing portion of the molding body 21 as the first molded body, that is, a predetermined portion of the back wall 26 of the cover portion 22 having the cavity 23. However, the present invention is not limited to this.
That is, as shown in FIG. 13, a guide body 101 </ b> A having an inclined guide surface 100 </ b> A is formed separately from the molding body 21, and the gate facing portion of the molding body 21, that is, the back surface of the covering portion 22 of the molding body 21. It may be set in a fixed position on the wall 26.
Alternatively, the guide body 101A may be positioned and fixed by forming a concave portion at a predetermined position on the back wall 26 of the cover portion 22 of the molding body 21, and may be positioned and fixed using a fixing means such as a clip, a screw, or an adhesive. Also good.
In this way, by forming the guide body 101A separately from the molding body 21, the characteristics required for the guide body 101A (for example, good for the molten material corresponding to the cushion materials 30, 33 as the second molded body) The guide body 101A can be formed by appropriately selecting a material having a characteristic such as excellent slipperiness, heat resistance, and releasability. For this reason, characteristics, such as favorable slidability, heat resistance, and mold release property, can be exhibited with respect to the molten material corresponding to the cushion materials 30 and 33 as the second molded body.
Also, when it is difficult to form the guide body 101 integrally with the molding body 21 due to factors such as a complicated structure of the molding die corresponding to the molding body 21, or after the cushion materials 30 and 33 are formed of a molten material, the clip This is an effective method when it interferes with the mounting of the fixture. In the latter case, the guide body 101A is removed after the cushion materials 30 and 33 are formed.
Further, when the molten material is injected, the heat of the injected molten material is absorbed by the guide body 101A without directly acting on the gate-facing portion of the molding body 21, and is conducted through the guide body 101A. The For this reason, the malfunction which the gate opposing part of the molding main body 21 overheats with the heat | fever which a molten material has, and deform | transforms is prevented.
In addition, when the guide body is formed integrally, this portion becomes thick and a problem of causing a sink on the corresponding outer surface of the molding body 21 as the first molded body is likely to occur. However, a separate guide body 101A is used. By doing so, such a problem can be prevented.

The present invention is not limited to the first and second embodiments.
For example, in the first and second embodiments, the case where the long composite molded product is the window edge molding 20 for the side portion of the window frame portion is illustrated, but the roof molding 70 ( It is also possible to form a part (front portion) of FIG. 5) or the entire roof molding 70 integrally. It can also be used in the case of a window edge molding that can be mounted along the gap between the outer peripheral edge of the window plate (rear window glass) at the rear of the vehicle and the peripheral wall of the window frame. It is.
In addition, the window edge formed so that it can be attached along the gap between the outer peripheral edge of the window plate and the peripheral wall part of the window frame part at the upper edge part of the window frame part at the front or rear part of the vehicle. Even in the case of the molding (the upper window edge molding 16 in FIG. 5), it is possible to employ the molding.
The long composite molded product of the present invention can also be used for parts other than vehicle window edge moldings, for example, long composite molded products such as bumpers and protector moldings.

It is a cross-sectional view based on the II line of FIG. 4 which shows the window edge molding for vehicles which concerns on Example 1 of this invention. It is a cross-sectional view based on the II-II line of FIG. 4 which similarly shows the window edge molding for vehicles. It is a cross-sectional view based on the III-III line of FIG. 4 which similarly shows the window edge molding for vehicles. It is a rear view which similarly shows the window edge molding for vehicles. It is a perspective view which similarly shows the mounting state of the window edge molding for vehicles from the front of a vehicle. It is a top view which similarly shows the cavity type | mold which removed the core type | mold of the injection mold apparatus as a manufacturing apparatus for window edge moldings. It is sectional drawing based on the VII-VII line of FIG. 6 similarly. FIG. 8 is a cross-sectional view showing a state where a molten material is injected and filled in the molding cavity in FIG. 7. It is sectional drawing based on the IX-IX line of FIG. 6 similarly. FIG. 10 is a cross-sectional view showing a state where the molten material is injected and filled in the molding cavity in FIG. 9. It is sectional drawing which shows the state by which the molten material was injection-filled by the shaping | molding cavity which concerns on Example 2 of this invention. It is explanatory drawing which similarly shows the relationship between the gate opposing part of a 1st molded object, a guide body, and an injection gate. It is a perspective view which shows the guide body similarly formed in the different body from the 1st molded object.

Explanation of symbols

2 Front pillar panel 5 Window frame part 7 Peripheral wall part 8 Window plate 20 Window edge molding (long composite molded product)
21 Mall body (first molded body)
28 Cough component (convex edge component)
28A cough (convex edge)
29 Convex edge constituent part 29A Convex edge part 30, 33 Cushion material (second molded body)
31, 35 Root part 32, 36 Cushion part 37 Connection part 38 Terminal cover part 40 Mounting part (partition wall)
50 First fixture 60 Second fixture 71 Mold (one mold)
71A Core mold 72 Cavity mold (the other mold)
75, 76, 77 Injection gate 78, 79 Slide mold 81 Terminal molding cavity 82, 85 Molding cavity 83, 86 Root cavity 84, 87 Cushion cavity 88 Communication path 100 Guide surface 101 Guide body

Claims (19)

A first molded body separately formed into a long shape having a mounting portion for mounting to the mounted body on the front and back surfaces, and the back surface side, and molded from a material softer than the first molded body, A long composite molded article comprising a second molded body joined to the outer peripheral edge of the first molded body and extending along the longitudinal direction of the outer peripheral edge,
When the composite molded product is attached to the mounted body, the first molded body faces the mounted body at locations apart from each other in the width direction of the first molded body and continues in the longitudinal direction. synthetic resin material so as to have a peripheral portion, and the respective joints to the outer peripheral edge of each successive along the long side direction, and a hollow portion along the longitudinal direction at a position between the outer peripheral edge of the respective Formed by gas injection molding with
In the second molded body, a synthetic resin material different from the molding material of the first molded body is injected from an injection gate facing the back side of the first molded body, and is applied to each joint portion of the first molded body. molded directly as an elongated cushion member, before Symbol cushioning material projects beyond the tip of the husband and root portion joined to the joint portion of the people, are molded integrally with the base portion of each said respective junction With cushion parts,
Each of the cushion members extends in the width direction along the back surface of the first molded body at a position corresponding to the injection gate in a part of the longitudinal direction, and is integrally connected by a connecting portion that crosses the cavity from the back surface side. And
A long composite molded article, wherein a surface in the width direction of the first molded body is exposed to the outside between the respective cushion portions. The long composite molded product according to claim 1,
The connecting portion connects the base portions of the respective cushion materials of the second molded body to each other , and is a long composite molded product. A long composite molded article according to claim 1 or 2,
The attachment part for attaching to a to-be-attached body protrudes integrally in the position between each elongate cushion part of the 2nd molded object of the back surface side of a 1st molded object, The long compound characterized by the above-mentioned. Molding. A long composite molded article according to any one of claims 1 to 3,
At least one terminal portion in the longitudinal direction of the first molded body is made of the same material as that of the second molded body, and is covered with a terminal cover portion formed integrally with each elongated cushion portion. Long composite molded product. The long composite molded product according to any one of claims 1 to 4,
The composite molded article is a vehicle window edge molding that is mounted along a vehicle window opening edge including a vehicle body panel and a window plate,
A long composite molded product, wherein one cushion part of the second molded body is molded so as to be in contact with the vehicle body panel at the window opening edge and the other cushion part is brought into contact with the window plate surface. A long composite molded article according to any one of claims 1 to 5 ,
A long composite molded article, wherein the second molded body is molded from a synthetic resin material that is more flexible and elastic than the synthetic resin material of the first molded body. The first molded body separately formed into a long shape having a front surface and a back surface, and a mounting portion for mounting to the mounted body on the back surface side, and a material softer than the first molded body. A method for producing a long composite molded article comprising a second molded body joined to the outer peripheral edge of the first molded body and extending along the longitudinal direction of the outer peripheral edge,
And the outer peripheral edge of each successive longitudinally with facing the body to be attached to each other away in the width direction of the first molded body when the composite molded member is attached to the the attached body, before Kiotto s By gas injection molding using a synthetic resin material so as to have respective joint portions that are continuous along the longitudinal direction at the outer peripheral edge portion and a hollow portion along the longitudinal direction at a position between the respective outer peripheral edge portions. Preparing the formed first molded body;
In order to mold the second molded body, using an injection mold having an openable injection gates, sometimes the mold is open, so that the first molded body is the back surface thereof facing the injection gate side was set in the mold to,
Close the mold, and a root portion cavity that forms the root portion of the second molded body between the respective junctions of the mold part and the first molded body within the mold, continuously from the root portion cavity the rewritable formed along a mold cavity having a cushion portion cavity to form a cushion portion protruding beyond said joint portion in the longitudinal direction of the husband outer peripheral edge portion of the people Te, wherein the mold portion in the mold first A part of the longitudinal direction of the communication path that connects the respective molding cavities to the back surface of the molded body and extends in the width direction along the back surface of the first molded body and crosses the cavity from the back surface side. Forming at a position corresponding to the injection gate;
A molten synthetic resin material different from the molding material of the first molded body is injected and filled from the injection gate into the molding cavity, and the root portion is molded and joined to each joint portion of the first molded body, and the cushion is formed. By projecting the part from the respective base part beyond the tip of the joint part and forming it integrally, the second molded body composed of the root part and the cushion part is directly formed on the outer peripheral edge part as an elongated cushioning material. And forming a connecting portion for integrally connecting a part of each of the cushion materials by the communication path ,
The manufacturing method of the elongate composite molded product characterized by including. A method for producing a long composite molded article according to claim 7 ,
Production of a long composite molded article characterized by injecting molten material from a plurality of injection gates arranged at predetermined intervals in the longitudinal direction of the molding cavity and filling the molding cavity with the molten material Method. A method for producing a long composite molded article according to claim 7 or 8 ,
The communicating passage communicates the root portion cavity of the molding cavity each formed, via said one of the forming Cavity I or said respective mold cavity or communication passage by injecting molten material into the communicating passage A long composite characterized in that the molding cavity is filled with a molten material, and a part of the molten material is flowed and filled into another molding cavity via the communication path to form a second molded body. Manufacturing method of molded products. A method for producing a long composite molded article according to claim 9 ,
A method for producing a long composite molded article, wherein a molten resin material is injected into a position of a communication path. A method for producing a long composite molded article according to claim 9 or 10 ,
On the back surface of the first molded body, a partition wall is formed between the respective outer peripheral edges,
The communication path is provided through the partition wall, and is a method for producing a long composite molded product. It is a manufacturing method of the long compound molded article according to any one of claims 7-11 ,
Method for producing a long composite molded article which comprises using the first molded body and to the second molded body has a high hardness synthetic resin molded article than. A method for producing a long composite molded article according to any one of claims 7 to 12 ,
A guide body having a guide surface inclined in a direction that intersects the injection direction of the molten material at a non-perpendicular direction is provided in a gate-facing portion of the first molded body facing the injection gate that injects the molten material into the molding cavity, A method for producing a long composite molded article, wherein the molten material injected from an injection gate flows along the guide surface and fills the molding cavity. A method for producing a long composite molded article according to claim 13 ,
A method for producing a long composite molded article, wherein a predetermined position of a wall portion forming a cavity of the first molded body is a gate facing portion, and a guide body is provided at the gate facing portion. A method for producing a long composite molded article according to claim 13 or 14 ,
The guide body is formed integrally with the gate facing portion of the first molded body, and is a method for producing a long composite molded product. A method for producing a long composite molded article according to claim 13 or 14 ,
A long composite molding characterized in that the guide body is formed separately from the first molded body, and the molten material is injected and filled into the molding cavity in a state of being set at the gate facing portion of the first molded body. Product manufacturing method. A method for producing a long composite molded article according to any one of claims 13 to 16 ,
A method for producing a long composite molded product, wherein the width of the guide body is set to a size that does not fall below the opening width of the injection gate. A method for producing a long composite molded article according to any one of claims 13 to 17 ,
A method for producing a long composite molded product, wherein the guide surface of the guide body is formed as a smooth surface. A first molded body separately formed in advance in a long shape having a mounting portion for mounting to the mounted body on the front and back surfaces, and the back surface side, and molded from a softer material than the first molded body, An apparatus for producing a long composite molded article comprising a second molded body joined to the outer peripheral edge of the first molded body and extending in the longitudinal direction of the outer peripheral edge,
The apparatus includes a mold composed of an open closed Possible cavity mold and the core mold,
The one mold includes an injection gate for injecting a synthetic resin material softer than the molding material of the first molded body to mold the second molded body, and either one of the molds and the outer peripheral edge of each successive longitudinally with facing the body to be attached at a distance from each other in the width direction of the first molded body when the previous SL composite molded attached to the object to be attached body, before Gas injection using a synthetic resin material so that each outer peripheral edge portion has a continuous joint portion along the longitudinal direction and a cavity portion along the longitudinal direction at a position between the outer peripheral edge portions. first molded body formed by molding toward the back surface to the exit gate side is capable Se Tsu DOO,
Wherein when closed by setting the first molded body on either one of the forming die, before Symbol said second molded body between the respective junction with the mold of the mold portion of the first molded body An outer peripheral edge portion of the first molded body is a molding cavity comprising a base portion cavity that forms a root portion of the first molded body and a cushion portion cavity that forms a cushion portion that protrudes beyond the joint portion continuously from the root portion cavity. Rutotomoni are respectively formed along the length side direction,
A communication path extending in the width direction along the back surface of the first molded body and extending across the cavity from the back surface side is located at a position corresponding to the injection gate in a part of the molding cavity in the longitudinal direction. Formed between the mold part and the back surface of the first molded body, and the molding cavities communicate with each other through the communication path.
An apparatus for manufacturing a long composite molded product.

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