JP6670347B2 - Belt molding - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a long belt molding attached along a lower edge of a window opening of a vehicle door.

A window opening is provided in a vehicle door that opens and closes an opening of a vehicle body, and a window plate (window glass) is installed to be able to move up and down in the window opening. A long belt molding that elastically contacts (presses in an elastically deformed state) the window plate and seals between the vehicle body panel and the window plate is attached to the lower edge of the window opening. The belt molding when the window plate is raised and lowered is by the window plate and the sliding contact (rub) in elastic contact state, such as water or dust of the window plate surface is wiped.

  As this type of belt molding, for example, the following Patent Document 1 is disclosed. The belt molding of Patent Literature 1 includes a main body attached to a door panel of a vehicle door, and a locking member for locking and fixing the belt molding to the door panel at a longitudinal end of the main body. The main body has a vehicle exterior side wall portion and a vehicle interior side wall portion facing each other, and a connecting portion that connects upper edges of both side wall portions. Based on the state in which the belt molding is locked and fixed to the door panel, the locking member includes a plate-shaped base, a buried portion formed on both sides of the base outside the vehicle, and a vehicle interior from the base. And a locking claw portion protruding toward the front. In addition, at the vehicle rear end of the belt molding, at least a part of the inner side wall portion of the main body is cut off, and the inner surface of the remaining portion is injection-molded by so-called insert injection molding (hereinafter referred to as insert molding). A part is formed. At this time, the locking member is integrated with the main body by embedding the embedded portion of the locking member in the injection molded portion.

  As described above, the locking member for locking and fixing the belt molding to the door panel is prepared separately from the main body, and the locking member is embedded in the injection molded portion, so that the belt molding can be easily attached to the door panel. And water is prevented from entering the door panel in the attached state.

  Further, in the belt molding of Patent Literature 1, the upper edge of the base of the locking member is formed with a flange portion that is continuously upright from the base, based on the state in which the belt molding is locked and fixed to the door panel. I have. By providing the flange portion, even when a stress such as rolling up from the bottom to the upper side of the vehicle exterior side wall portion in a state where the belt molding is attached to the door panel, the flange portion receives the stress, The belt molding is prevented from being twisted in a direction perpendicular to the longitudinal direction. In this sense, the flange at the upper edge of the base can be said to be a torsion preventing projection. This flange is not embedded in the injection molded part because it stands upright on the base, based on the state in which the belt molding is locked and fixed to the door panel, and the outer surface of the flange is formed by the adhesive force during insert molding. It is fixed to the injection molded part.

JP 2013-230762 A

  However, if the flange portion of the locking member is fixed to the injection molded portion only by the fixing force at the time of insert molding as in Patent Literature 1, when the stress in various directions repeatedly acts on the outer side wall portion, the flange portion is not fixed. The part may be peeled off from the injection molded part and may be lifted. In this case, the raised flange portion may collide with the door panel due to vibration or the like during traveling of the vehicle, which may generate abnormal noise or damage the door panel.

  Therefore, the present invention is to solve the above-mentioned problem, and when a locking member for locking and fixing a belt molding to a door panel is embedded in an injection molded portion of the belt molding, the flange portion of the locking member is injected. An object of the present invention is to provide a belt molding that is not easily peeled off from a molding part.

As means for that purpose, the present invention provides a long belt molding attached along a lower edge of a window opening of a vehicle door, and a main body attached to a door panel of the vehicle door, and a longitudinal end of the main body. And a locking member for locking and fixing the belt molding to the door panel. The main body has a vehicle outer side wall and a vehicle inner side wall facing each other, and a connecting part connecting upper edges of both side walls. On the basis of a state in which the belt molding is locked and fixed to the door panel, the locking member includes a base, a buried portion formed on both sides of the base on the vehicle outside than the base, and A locking claw protruding toward the inside of the vehicle. At an end in the longitudinal direction of the belt molding, at least a part of the inner side wall portion of the main body portion is cut off, and an injection molding portion is formed on an inner surface of a remaining portion by insert molding. The locking member is integrated with the main body by burying the embedded portion of the stop member in the injection molded portion. Further, a flange portion is formed at an upper edge of a base of the locking member based on a state in which the belt molding is locked and fixed to the door panel. Then, the flange portion is bent from the middle portion in the vertical direction to the outside of the vehicle, the front end portion of the flange portion is located on the outside of the vehicle from the base end portion , and the front end portion of the flange portion is also embedded in the injection molded portion. On the other hand, the base end of the flange portion is not embedded in the injection molded portion, but the outer surface of the flange portion is covered with the injection molded portion from the distal end portion to the base end portion. It is characterized by the following.

  In the following description, the direction in which the belt molding is attached to the door panel is used as the unified standard for the directionality such as the vertical direction and the vehicle interior and exterior directions.

  In this way, if at least the tip of the flange portion is also embedded in the injection molded portion, the flange portion hardly peels off from the injection molded portion and rises even if any stress acts on the vehicle exterior side wall portion. Thereby, it is possible to prevent the flange portion from colliding with the door panel, generating abnormal noise, or damaging the door panel. In addition, even if the flange portion is peeled off from the injection molded portion, the front end portion is located outside the vehicle from the base end, so that it is hard to collide with the door panel.

  If the flange is suddenly deformed from the base end to the outside of the vehicle, the flange is almost entirely buried in the injection molded part. In this case, the floating of the flange portion can be more firmly prevented. However, on the other hand, the flange portion cannot be mounted on the mold during insert molding, so that the mounting stability of the locking member is reduced. In this case, there is a possibility that the locking member is displaced during insert molding and cannot be accurately embedded in a predetermined position. On the other hand, if the flange part is deformed from the middle part in the vertical direction, the tip part is buried, while the base end part can be supported by the mold during insert molding, so it is difficult to displace and the molding stability is improved I do.

In this case, it is preferable that the flange is bent at an intermediate portion in the vertical direction. Thereby, the inflection point becomes easy to understand, and it becomes easy to mount at a predetermined position in the mold at the time of insert molding. In addition, when it is shifted from a predetermined position, it is easy to find.

  Further, after the injection molded portion is formed of a material softer than the locking member, a ridge portion is formed on the inner surface of the injection molded portion, which protrudes toward the vehicle interior above the flange portion, It is preferable that the tip of the ridge is located on the vehicle inner side of the flange. According to this, even if the flange portion is peeled off from the injection molded portion, the soft ridge portion comes into contact with the door panel in preference to the flange portion, so that the collision between the flange portion and the door panel is more effectively prevented. .

  ADVANTAGE OF THE INVENTION According to the belt molding of this invention, when the locking member for locking and fixing to a door panel is embedded in the injection molded part, the flange part of the locking member is not easily peeled off from the injection molded part, and the difference due to the collision with the door panel. It is possible to prevent generation of noise and damage to the door panel.

It is a perspective view of a vehicle door. FIG. 2 is a cross-sectional view corresponding to line II-II in FIG. 1. It is a rear end part enlarged front view of a belt molding. It is a perspective view of a locking member. FIG. 5 is a sectional perspective view taken along line VV of FIG. 3. FIG. 5 is a sectional view taken along line VV of FIG. 3. It is sectional drawing of the state which opened the metal mold | die. It is sectional drawing in the state where the metal mold | die was narrowed. It is sectional drawing of the metal mold at the time of injection molding.

  Hereinafter, representative embodiments of the present invention will be described. The belt molding to which the present invention is applied is attached along a lower edge of a window opening of a vehicle door of an automobile or the like, and at least an outer side wall portion and an inner side wall portion facing each other, and an upper edge of both side wall portions. As long as at least one part of the inner side wall is cut off at one end or both ends in the longitudinal direction, the specific shape of the other parts is There is no particular limitation. The belt molding is also called a belt molding, a weather strip, and a drain seal.

  In the following embodiments, a belt molding attached to the left front door will be described as a representative example. However, the belt molding of the present invention is attached to the right front door, the right and left rear doors, and the like. It may be something.

  As shown in FIG. 1, a vehicle door 1 has a window opening formed on a door panel 2, and a window plate 3 is arranged to be able to move up and down within the window opening. Then, a long belt molding 10 is attached in the vehicle front-rear direction along the lower edge of the window opening of the vehicle door 1 (the upper edge of the door panel 2). The belt molding 10 elastically contacts and seals the window plate 3. Thus, when the window plate 3 moves up and down, water droplets and foreign substances (sand, dust, dust, etc.) attached to the surface of the window plate 3 are wiped off by the belt molding 10. FIG. 1 is a perspective view from the outside of the vehicle, in which a belt molding 10 is an outer belt molding, and a door panel 2 is an outer door panel. Further, an engagement hole 5 (see FIG. 6) is formed in the upper edge portion of the door panel 2 and below the rear vertical portion 4 of the window frame, in which an engagement member 30 described later is engaged. .

  The belt molding 10 is basically an extruded product except for one end portion in the longitudinal direction where the locking member 30 is provided, and a main body 15 described later and each part formed to protrude from the main body 15 are: It is formed substantially uniformly over the entire longitudinal direction.

  As shown in FIG. 2, the belt molding 10 has a main body 15 having a substantially U-shaped cross section. The main body portion 15 includes an outer side wall portion 12 and an inner side wall portion 13 which are provided to face each other at a predetermined interval, and a connecting portion 14 which connects upper edges of the outer side and inner side wall portions 12 and 13 to each other. have. On the other hand, the front end portion (upper edge portion) of the door panel 2 is hemmed in a folded state to form a flange portion 2a. The belt molding 10 is attached to the flange portion 2a by inserting the flange portion 2a into the main body portion 15. In addition, a core material made of metal or hard resin may be buried in the main body portion 15 in order to improve a holding force when the main body portion 15 is attached to the flange portion 2a.

  The lower edge of the inner side wall 13 is bent outward and engages with the folded front edge (lower edge) of the flange portion 2a when the belt molding 10 is attached to the door panel 2. A plurality (two in this embodiment) of seal lips 16 are formed vertically on the outer surface of the inner side wall portion 13 so as to project toward the window plate 3 (inside the vehicle). When the belt molding 10 is attached to the door panel 2, the seal lip 16 elastically contacts the window plate 3.

  Holding lips 17 are formed on the inner surfaces of the outer side wall portion 12 and the inner side wall portion 13, respectively. When the belt molding 10 is attached to the door panel 2, the holding lip 17 elastically contacts the flange 2 a of the door panel 2 and holds the door panel 2. The number of the sealing lip 16 and the number of the holding lip 17 may be one at the top and bottom, or may be plural.

  A shielding lip 18 that protrudes from the lower edge of the vehicle exterior side wall portion 12 to close a gap between the belt molding 10 and the door panel 2 when the belt molding 10 is attached to the door panel 2. On the upper surface of the connecting portion 14, a decorative lip 19 for improving the appearance is formed so as to protrude.

  The belt molding 10 is made of an extrudable material. For example, a thermoplastic elastomer, a thermoplastic resin, rubber, or the like can be used. Specific examples include olefin-based thermoplastic elastomer (TPO), styrene-based elastomer (TPS), vinyl chloride resin (PVC), polypropylene resin (PP), and ethylene-propylene diene copolymer (EPDM). . As a material for forming the main body 15, a material having a durometer hardness (type D) according to JIS K 7215 (HDD 50 to 80) is suitably used.

  The sealing lip 16, the holding lip 17, the shielding lip 18, and the decorative lip 19 are also each made of a material that can be extruded, but are made of a material that is softer and more elastically deformable than the main body 15. For example, a thermoplastic elastomer, a thermoplastic resin, rubber, or the like can be used. Specific examples include olefin-based thermoplastic elastomer (TPO), styrene-based elastomer (TPS), vinyl chloride resin (PVC), polypropylene resin (PP), and ethylene-propylene diene copolymer (EPDM). . As a material for forming the seal lip 16, the holding lip 17, the shielding lip 18, and the decorative lip 19, those having a durometer hardness (type A) according to JIS K 7215 (type A) of 50 to 90 are preferably used.

  In the belt molding 10, the main body 15 and the lips 16, 17, 18, and 19 are integrally formed by co-extrusion. And it is obtained by performing secondary processing for attaching the belt molding 10 to the vehicle door 1, such as pressing, cutting, and injection molding of both ends in the longitudinal direction. At the time of the injection molding as the secondary processing, the locking member 30 separately manufactured as a separate member in advance is buried in a predetermined location by insert molding.

  In the present embodiment, as shown in FIG. 3, a locking member 30 is embedded in the rear end of the belt molding 10. Specifically, after the main body 15 is extruded, a decorative lip 19 including a part of the inner side wall 13, the seal ship 16, the holding lip 17, and the connecting part 14 is provided at the rear end of the main body 15. Is removed. Then, only the rear end of the main body 15 is set in the cavity of the injection molding die, and is injection-molded together with the locking member 30 previously set in the cavity, whereby the inner surface of the injection molding section 20 is formed. Is fixed in a state where a part of the locking member 30 is embedded. Reference numeral 21 denotes an end cap portion formed by injection molding. The part to be cut off and the part where the injection molded part 20 is formed are arbitrarily set in consideration of the positional relationship with the vehicle body and other members and the design of the vehicle, and are not limited to this embodiment. For example, the injection-molded portion 20 may be cut away while leaving a part of the inner side wall portion 13, or may be cut out of the entire connection portion 14 so as to match an adjacent member.

  As shown in FIG. 4, the locking member 30 has a base portion 31, embedded portions 32 continuous with both side edges of the base portion 31, and locking claw portions 33 protruding from the base portion 31. The buried portion 32 is formed outside the vehicle with respect to the base portion 31. The locking claw 33 is formed to protrude from the base 31 toward the inside of the vehicle. The locking claw 33 is formed between an upper edge 34 continuous from the base 31, an arm 35 extending diagonally downward from both left and right edges of the upper edge 34, and a pair of left and right arms 35. And a claw portion 36 extending obliquely rearward and upward. A concave groove 37 is formed on the upper surface of the upper edge portion 34.

  A fin-like flange 38 is provided upright on the upper edge of the base 31 over the entire width of the base 31 (the longitudinal direction of the belt molding 10). In the present embodiment, the flange portion 38 is bent toward the vehicle outside at a middle portion in the vertical direction in the cross section. As a result, the distal end portion (upper edge) 38a of the flange portion 38 is located outside the vehicle with respect to the base end portion 38b (base portion) with the base portion 31.

  Then, the locking member 30 is buried in a state where the buried portion 32 is covered by the injection molding portion 20 as shown in FIGS. It is integrated with the side wall 12. In other words, even if the locking member 30 is embedded in the injection molded part 20 by insert molding, the base 31 and the locking claw 33 are not embedded.

  On the other hand, in the flange portion 38, the distal end portion 38 a is located on the vehicle outer side than the base end portion 38 b, so that only the distal end portion 38 a is embedded in the injection molding section 20. As described above, if the distal end portion 38a of the flange portion 38 is buried in the injection molded portion 20, the flange portion 38 may be peeled off from the injection molded portion 20 even if any stress acts on the vehicle exterior side wall portion 12. It rarely rises. Therefore, it is possible to prevent the flange portion 38 from colliding with the door panel 2 and generating abnormal noise or damaging the door panel 2. In addition, even if the flange portion 38 is peeled off from the injection molded portion 20, the front end portion 38a is located on the vehicle outside of the base end portion 38b.

  On the other hand, even if the locking member 30 is embedded in the injection molded portion 20 by insert molding, the base end portion 38b of the flange portion 38 is not embedded in the injection molded portion 20. Accordingly, when the locking member 30 is insert-molded, the base end portion 38b can be supported by the mold, so that it is difficult to displace and the molding stability is improved.

  The locking member 30 is injection-molded with a material having a higher elastic coefficient than the polymer material forming the main body 15 of the belt molding 10. Examples of the polymer material forming the locking member 30 include polyacetal resin (POM) and AES (Acrylonitrile-Ethylene-Styrene) resin.

  Further, the ridge 22 is formed above the flange 38 by injection molding. The protruding ridge portion 22 is formed so as to protrude from the injection molded portion 20 toward the inside of the vehicle. The tip of the ridge portion 22 is located closer to the vehicle than the flange portion 38 of the locking member 30.

  As shown in FIG. 6, the locking member 30 is inserted and locked in the engagement hole 5 formed in the door panel 2. That is, the belt molding 10 is fixed to the door panel 2 by engaging the locking member 30 with the engaging hole 5. At this time, the upper edge of the engaging hole 5 is fitted in the concave groove 37 of the locking member 30, and the claw portion 36 is elastically contacted with the lower edge of the engaging hole 5 to be locked.

  Further, in a state where the locking member 30 is engaged with the engagement hole 5, the ridge 22 of the injection molded portion 20 is in contact with the door panel 2. Thereby, even if the flange portion 38 is peeled off from the injection molded portion 20, the collision between the flange portion 38 and the door panel 2 is effectively prevented because the soft ridge portion 22 is in contact with the door panel 2. .

  Next, a procedure for embedding the locking member 30 by insert molding will be described. First, after the main body portion 15 of the belt molding 10 and the lips 16, 17, 18, and 19 were integrally formed by co-extrusion molding, other portions were cut off at the rear end except for the vehicle outer side wall portion 12. Then, as shown in FIG. 7, the rear end is set in a mold for injection molding. Reference numeral 40 denotes a lower die (fixed type), reference numeral 41 denotes an upper die (movable type), and reference numeral 42 denotes a nest.

  Note that the locking member 30 separately manufactured in advance is placed and set (inserted) at a predetermined position of the lower mold 40. At this time, since the base end portion 38b of the flange portion 38 of the locking member 30 is flat, it can be stably mounted on the lower mold 40. When the mold is clamped in this state, as shown in FIG. 8, a cavity 45 having a predetermined shape is formed in a space surrounded by the lower mold 40, the upper mold 41, the insert 42, the outer side wall 12, and the locking member 30. Is defined.

  From this state, the injection molding portion 20 and the like are formed by injection-filling the molten resin into the cavity 45 as shown in FIG. 9, and at the same time, the locking member 30 is embedded in the injection molding portion 20. In addition, since the base portion 38b of the flange portion 38 of the locking member 30 is stably in contact with the lower die 40, the gap between the base portion 38b and the lower die 40 when the molten resin is injected and filled. It is difficult for the molten resin to flow into the space, and the sealing property between the wood end 38b and the lower mold 40 can be stably ensured.

  As described above, the representative embodiment of the present invention has been described. However, the present invention is not limited to this, and various changes can be made without departing from the gist of the present invention. In particular, as long as the front end portion 38a of the flange portion 38 of the locking member 30 is located outside the base end (base) with the base portion 31, various concrete shapes can be considered. For example, it is also possible to immediately deform the vehicle from the base end (base) to the vehicle base including the base end 38b. In addition, not only the upper and lower middle portions may be bent but also bent. Further, it is also possible to form a hook shape in which the distal end portion 38a is further bent vertically after being bent horizontally to the outside of the vehicle at the upper and lower middle portions. Further, it may be bent in a plurality of steps to form a step shape in a side sectional view.

DESCRIPTION OF SYMBOLS 1 Vehicle door 2 Door panel 3 Window plate 5 Engagement hole 10 Belt molding 12 Outer side wall part 13 Inner side wall part 14 Connecting part 15 Body part 16 Seal ship 17 Holding lip 18 Shielding lip 19 Decorative lip 20 Injection molding part 22 Protrusion Part 30 locking member 31 base part 32 buried part 33 locking claw part 34 upper edge part 35 arm part 36 claw part 37 concave groove 38 flange part 38a tip part 38b base end part 40 lower mold 41 upper mold 42 nesting

Claims (2)

A long belt molding attached along the lower edge of the window opening of the vehicle door,
A main body attached to a door panel of the vehicle door, and a locking member for locking and fixing the belt molding to the door panel at a longitudinal end of the main body;
The main body portion includes an outer side wall portion and an inner side wall portion facing each other, and a connecting portion that connects upper edges of both side wall portions,
Based on the state where the belt molding is locked and fixed to the door panel,
The locking member has a base, a buried portion formed on both sides of the base on the vehicle outside of the base, and a locking claw protruding from the base toward the vehicle interior. ,
At an end in the longitudinal direction of the belt molding, at least a part of the inner side wall portion of the main body portion is cut off, and an injection molding portion is formed on an inner surface of a remaining portion by insert molding. By embedding a buried portion of a stop member in the injection molded portion, the locking member is integrated with the main body portion,
A flange portion is formed on the upper edge of the base of the locking member,
The flange portion is bent outward from the middle portion in the up-down direction, and the distal end portion of the flange portion is located on the vehicle outer side than the base end portion , and the distal end portion of the flange portion is also embedded in the injection molded portion . On the other hand, the base end of the flange portion is not embedded in the injection molded portion, but the outer surface of the flange portion is covered with the injection molded portion from the distal end portion to the base end portion. the mall. The injection molded portion is formed of a material softer than the locking member,
On the basis of the state in which the belt molding is locked and fixed to the door panel, a ridge projecting from the injection molded part toward the vehicle interior is formed above the flange part,
The belt molding according to claim 1 , wherein a tip of the ridge portion is located on the vehicle inner side with respect to the flange portion.

Images