JP3152579U - Automotive opening seal - Google Patents

Abstract

The present invention provides an opening seal for automobiles in which wrinkles and creases are not generated in a hollow seal portion of a molded portion at a corner portion. An attachment base 10 is attached to an attachment flange provided along a door opening edge of an automobile body, and has a substantially U-shaped cross section having a vehicle inner side wall 12 and a vehicle outer side wall 13, and a core member 14 embedded therein. A hollow seal portion 20 provided continuously to the outer side wall 13 is provided, and a straight portion formed by the extrusion molding portion E and a part of the extrusion molding portion E are cut, and the cut portion is formed by the die molding portion. In what consists of a corner part, the corner part cuts the hollow seal part 20 of the extrusion molding part E and the at least substantially upper half part of the vehicle outer side wall 13 to the vehicle inner side wall 12 and the vehicle outer side wall 13 from its upper end, A slit 17 is formed at a right angle to the longitudinal direction, and the cut portion is formed by a mold forming portion. [Selection] Figure 7

Description

  The present invention relates to an opening seal attached along a door opening edge of an automobile body.

  This will be described with reference to FIGS. An opening seal 30 that elastically contacts the door is provided at the door opening edge of the automobile body 2. The opening seal 30 is attached to a mounting flange 3 provided along a door opening edge, and has a substantially U-shaped mounting base 10 having a bottom wall 11, a vehicle inner side wall 12, and a vehicle outer side wall 13, and a vehicle outer side. A hollow seal portion 20 is provided which is connected to the wall 13 and elastically contacts the door.

  Further, the opening seal 30 is composed of a straight portion and a corner portion, the straight portion is formed by an extrusion molding portion E, and the corner portion is a hollow seal of the extrusion molding portion E as shown in FIGS. The substantially upper half part of the vehicle exterior wall 13 of the part 20 and the attachment base part 10 continuing to it is cut, and the cut part is molded in a mold. The corner portion is molded to form the hollow seal portion 20 in a shape corresponding to the corner portion. A core material 14 as shown in FIG. 5 is embedded in the mounting base portion 10 of the extrusion molding portion E in order to ensure a sufficient assembling force for the mounting flange 3.

  Such a conventional opening seal 30 has problems to be solved. That is, the corner portion of the opening seal 30 is formed by cutting the hollow seal portion 20 of the extrusion-molded portion E and the substantially upper half of the vehicle outer side wall 13 of the mounting base portion 10 that is continuous therewith, and bending and molding the portion. After the molding, a force is generated that the extrusion molding part E used for the molding part D tries to restore linearity (see the arrow in FIG. 2), and the hollow seal part 20 of the molding part D is wrinkled or folded. Lines are likely to occur. As a result, the sealing performance is lowered and the appearance is also impaired.

  For example, in the case of a type in which the connecting member 14b of the core member 14 is cut, each of the cross members 14a of the core member 14 bent into a curved shape as shown in FIG. Since the gap is filled with a rubber-like elastic body, a large elongation stress is generated. Along with this, a force to shrink the rubber-like elastic body is generated, and conversely in the contracted part. This is because a force for spreading is generated. In the case of the type in which the connecting member 14b of the core member 14 is not cut, the above force is generated and the elastic restoring force of the core member 14 itself is generated.

  The present invention was devised in view of these problems, and by not generating a force to restore the linear shape in the mold part at the corner part, wrinkles and creases occur in the hollow seal part of the mold part. It is an object of the present invention to provide an automobile opening seal that does not occur.

  This will be described with reference to FIGS. 1 and 2 and FIGS. The opening seal 1 for an automobile according to claim 1 is attached to an attachment flange 3 provided along a door opening edge of an automobile body 2 and has a substantially U-shaped cross section having a bottom wall 11, an interior wall 12 and an exterior wall 13. A straight base portion formed by the extrusion molding portion E, and a part of the extrusion molding portion E. The mounting base portion 10 has a letter-like shape and the core 14 embedded therein, and the hollow seal portion 20 is provided continuously to the vehicle outer side wall 13. And a corner portion where the cut portion is formed by the mold forming portion D.

  The corner portion is cut at least approximately the upper half of the hollow seal portion 20 and the vehicle outer side wall 13 of the extruded portion E, and the vehicle inner side wall 12 and the vehicle outer side wall 13 or one of them, from its upper end, A slit 17 is formed at a right angle to the longitudinal direction, and the cut portion is formed by a molding part D. Note that “at least approximately the upper half” includes both cutting more or less than the upper half.

  The opening seal 1 for an automobile according to claim 2 is attached to an attachment flange 3 provided along a door opening edge of the automobile body 2, and has a substantially U-shaped cross section having a bottom wall 11, an interior wall 12, and an exterior wall 13. A straight base portion formed by the extrusion molding portion E, and a part of the extrusion molding portion E. The mounting base portion 10 has a letter-like shape and the core 14 embedded therein, and the hollow seal portion 20 is provided continuously to the vehicle outer side wall 13. And a corner portion where the cut portion is formed by the mold forming portion D.

  Then, the corner portion is cut at the hollow seal portion 20 of the extrusion molding portion E, and a slit 17 is formed in the vehicle inner side wall 12 and / or the vehicle outer side wall 13 from the upper end thereof at right angles to the longitudinal direction. The cut portion is formed by the molding part D.

  The opening seal 1 for an automobile according to a third aspect is the device according to the first or second aspect, wherein the slit 17 is filled with a molding material M at the time of molding.

  When the slits 17 are formed in both the vehicle inner side wall 12 and the vehicle outer side wall 13 in the device according to the first, second, or third aspect, the opening seal 1 for an automobile according to the fourth aspect is provided. Are aligned with the same horizontal line L.

  The opening seal 1 for an automobile according to claim 1 cuts at least substantially upper half portions of the hollow seal portion 20 and the vehicle outer side wall 13 of the extrusion molding portion E, and forms the corner portion, as well as the vehicle inner side wall 12 and the vehicle. Since the slit 17 is formed in the outer wall 13 or one of them from the upper end thereof at a right angle to the longitudinal direction, and the cut portion is formed by the molding part D, after the molding, a straight line is formed in the molding part D. It is possible to suppress the generation of a force for restoring the shape. Thereby, it is possible to prevent wrinkles and creases from occurring in the hollow seal part 20 of the molded part D, and it is possible to improve the sealing performance and appearance.

  This is because the slit 17 formed in the vehicle interior side wall 12 and the vehicle exterior wall 13 of the extrusion molding part E reduces the elongation stress that occurs when bent into a curved shape at the time of molding, so that the vehicle interior side wall 12 and the vehicle exterior side are reduced. This is because the restoring force generated on the wall 13 is greatly attenuated.

  The opening seal 1 for an automobile according to claim 2 cuts the hollow seal portion 20 of the extrusion molding portion E at the corner portion, and extends from the upper end to the vehicle inner side wall 12 and / or the vehicle outer side wall 13 from its upper end. Since the slit 17 is formed at a right angle to the direction and the cut portion is formed by the molded portion D, the restoring force generated in the molded portion D is greatly attenuated as in the device of claim 1. Can do. Therefore, it is possible to prevent wrinkles and creases from occurring in the hollow seal portion 20 of the mold forming portion D.

  Further, since the opening seal 1 for an automobile cuts only the hollow seal portion 20 and does not cut the vehicle inner side wall 12 and the vehicle outer side wall 13, it is not necessary to cut the core member 14 embedded therein. Therefore, the cutting operation can be simplified and the productivity can be improved. Moreover, since the structure of a cutting device can be simplified and the lifetime can be extended, the productivity can be further improved.

  The opening seal 1 for an automobile according to claim 3 exhibits the same effect as the device according to claim 1 or 2. In addition, since the slit 17 is filled with the molding material M at the time of molding, the restoring force of the molding part D after molding can be further suppressed. Thereby, it can suppress more effectively that a wrinkle and a folding stripe generate | occur | produce in the hollow seal part 20 of the shaping | molding part D. FIG.

  The opening seal 1 for an automobile according to claim 4 exhibits the same effect as the device according to claim 1, 2 or 3. Further, when the slit 17 is formed on both the vehicle interior side wall 12 and the vehicle exterior wall 13, the slit 17 formed on the vehicle interior side wall 12 and the vehicle exterior wall 13 is aligned with the same horizontal line L. There is a great advantage that 17 can be performed simultaneously with the same blade. Thereby, productivity can be further increased.

  A first embodiment of an automotive opening seal 1 according to the present invention is shown in FIGS. 1, 2, 7 to 9. FIG. 7 shows a state after cutting almost the upper half of the hollow seal portion 20 and the vehicle outer side wall 13 (a state before molding), and FIG. 8 shows a state after molding. In FIG. 2, reference numeral 21 denotes a fin portion 21 that is a part of the mold forming portion D.

  This is provided along the door opening edge of the automobile body 2 and includes a mounting base 10 and a hollow seal portion 20. The attachment base 10 is attached to the attachment flange 3 provided along the door opening edge, and has a substantially U-shaped cross section having a bottom wall 11, a vehicle inner side wall 12, and a vehicle outer side wall 13. A core material 14 is embedded. The hollow seal portion 20 is connected to the vehicle outer side wall 13 of the mounting base portion 10 and elastically contacts the door. A large lip 15 and a small lip 16 are provided on the mounting base portion 10 so as to sandwich and mount the mounting flange 3 toward the inside thereof. Further, a decorative lip 18 is projected from the vehicle interior side wall 12 to the indoor side.

  In addition, although the core material 14 in this embodiment is a metal and is the type by which the connection material 14b is cut | disconnected after extrusion molding, this invention is not limited to this, The metal or resin-made core material 14 is used. A type in which the connecting material 14b is not cut can also be embedded.

  The opening seal 1 is composed of a straight portion and a corner portion, and the straight portion is formed by an extrusion molding portion E. Then, the corner portion is cut at the substantially upper half of the hollow seal portion 20 and the vehicle outer side wall 13 of the extrusion molding portion E, and the slit 17 is formed in the vehicle inner side wall 12 from the upper end thereof at a right angle to the longitudinal direction. The formed part is formed by the molded part D.

  That is, prior to molding the corner portion, the slit 17 is formed in the vehicle interior side wall 12, and thereafter, the portion is placed in the mold S, and the molding material M is pressed into the mold S and cut and A molding material D is formed by filling the slit 17 with a molding material.

  In the present embodiment, the slit 17 is formed only on the vehicle interior side wall 12, but it can also be formed on the vehicle exterior wall 13.

  In the present embodiment, the lower end 17a of the slit 17 is set at a position of about 1 mm from the bottom wall 11, and the slit 17 is filled with a molding material M at the time of mold forming. FIG. 9A shows a state in which the slit 17 is formed in the vehicle inner wall 12 (the decorative lip 18 is omitted). FIG. 9B shows a state in which the molding material M is filled in the slit 17 after the molding. Here, the lower end 17 a of the slit 17 may be set at a position in contact with the inner side surface 11 a of the bottom wall 11.

  The opening seal 1 can be formed of a solid material or sponge material of rubber or thermoplastic elastomer. The hardness is preferably JIS A20-70. The mold forming part D can be formed by transfer molding or injection molding.

  The opening seal 1 for an automobile according to the present embodiment cuts the substantially upper half of the hollow seal portion 20 and the vehicle outer side wall 13 of the extruded portion E and forms the upper end of the vehicle inner side wall 12 at the upper end. Therefore, the slit 17 is formed at right angles to the longitudinal direction, and the cut portion is formed by the molded part D. Therefore, after the mold is formed, the force that tries to restore the linear part to the molded part D Can be suppressed. Thereby, it is possible to prevent wrinkles and creases from occurring in the hollow seal part 20 of the molded part D, and it is possible to improve the sealing performance and appearance.

  Moreover, in this embodiment, since the slit 17 is filled with the molding material M at the time of molding, the restoring force of the molding part D after molding can be further suppressed. Thereby, it can suppress more effectively that a wrinkle and a folding stripe generate | occur | produce in the hollow seal part 20 of the shaping | molding part D. FIG.

  Moreover, since the lower end 17a of the slit 17 is set at a position of 1 mm or more from the bottom wall 11 and the remaining portion R is formed, the molding material M is prevented from leaking from the lower end 17a of the slit 17, and the molding accuracy is high. A product having excellent appearance can be provided.

  In this embodiment, the slit 17 is filled with the molding material M, but it can be left as it is without being filled. In this case, there is an advantage that mold forming becomes easy and consumption of the molding material M can be reduced. Even when the slit 17 is not filled with the molding material M, since the slit 17 is formed in a portion that is not visually recognized from the outside, the appearance is kept good.

  A second embodiment of an automotive opening seal 1 according to the present invention is shown in FIG. 1, FIG. 2, FIG. 10, and FIG. FIG. 10 shows a state after cutting a predetermined portion, and FIG. 11 shows a state after molding.

  The opening seal 1 cuts only the hollow seal portion 20 of the extrusion-molded portion E at the corner portion, and slits both the inner side wall 12 and the outer side wall 13 from the upper end thereof at a right angle to the longitudinal direction. 17 is formed, and the cut portion is formed by the molding part D. The slit 17 is filled with a molding material M at the time of mold molding. In addition, the slit 17 can also be formed only in the vehicle interior side wall 12 or only in the vehicle exterior wall 13.

  Further, the lower ends 17 a of both slits 17 formed on both the vehicle inner side wall 12 and the vehicle outer side wall 13 are aligned with the same horizontal line L. Further, the lower end 17 a of the slit 17 is set at a position of 1 mm or more from the bottom wall 11.

  The opening seal 1 for automobiles according to the present embodiment has a corner portion cut from the hollow seal portion 20 of the extrusion molding portion E, and slits 17 are formed in both the vehicle inner side wall 12 and the vehicle outer side wall 13, and the cut portion. Is formed by the molding part D, a large restoring force is not generated in the molding part D. Therefore, it is possible to prevent wrinkles and creases from occurring in the hollow seal portion 20 of the mold forming portion D.

  Moreover, since only the hollow seal part 20 is cut and the vehicle inner side wall 12 and the vehicle outer side wall 13 are not cut, there is no need to cut the core member 14 embedded therein. Therefore, the cutting operation can be simplified and the productivity can be improved. In addition, the structure of the cutting device can be simplified and the life can be extended, so that productivity can be further improved.

  In addition, since the slit 17 is filled with the molding material M, the restoring force of the molding part D after the molding can be further suppressed, so that wrinkles and folding lines are generated in the hollow seal part 20 of the molding part D. Generation | occurrence | production can be suppressed more effectively.

  Moreover, since the lower end 17a of the slit 17 formed in both the vehicle inner side wall 12 and the vehicle outer side wall 13 is aligned with the same horizontal line L, the formation can be performed simultaneously with the same blade. Therefore, productivity can be further increased.

  Furthermore, since the lower end 17a of the slit 17 is set at a position of about 1 mm from the bottom wall 11, the molding material M does not leak from the lower end (connection surface) 17a of the slit 17, and a product having an excellent appearance can be provided. it can.

  In the above two embodiments, the number of slits 17 is not limited. For example, the number of slits 17 can be formed between each of the plurality of cross members 14a of the core member 14 located in the corner portion. These angles can be divided into four equal parts and formed at equal positions. The slit 17 is naturally formed while avoiding interference with the cored bar.

It is a side view which shows the motor vehicle which attached the opening seal. It is a principal part enlarged view of the opening seal | sticker shown in FIG. It is sectional drawing which shows the state which cut the predetermined location in the opening seal which concerns on a prior art example. The opening seal which concerns on a prior art example is shown, and it is the XX sectional view taken on the line of FIG. It is a perspective view which shows the core material embed | buried under an opening seal. It is a perspective view which shows the state which the core material shown in FIG. 4 curved. In 1st embodiment of the opening seal | sticker which concerns on this invention, it is sectional drawing which shows the state which cut the predetermined location. 1 shows a first embodiment of an opening seal according to the present invention, and is a cross-sectional view taken along line XX of FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a first embodiment of an opening seal according to the present invention, in which (a) is a state in which a slit is formed on an inner wall of a vehicle, and (b) is an external view showing a state in which the slit is filled with a molding material. (The decorative lip is omitted). In 2nd embodiment of the opening seal | sticker which concerns on this invention, it is sectional drawing which shows the state which cut the predetermined location. FIG. 3 shows a second embodiment of the opening seal according to the present invention and is a cross-sectional view taken along the line XX of FIG. 2.

DESCRIPTION OF SYMBOLS 1 Opening seal 2 Automobile body 3 Mounting flange 10 Mounting base 11 Bottom wall 11a Inner side surface 12 Car inner wall 13 Car outer wall 14 Core material 14a Cross member 14b Connecting material 15 Large lip 16 Small lip 17 Slit 17a Lower end of slit 18 Decorative lip 20 Hollow seal part 21 Fin part 30 Opening seal D Molding part E Extrusion part L Horizontal line M Molding material R Remaining part S Mold

Claims (4)

  It is attached to a mounting flange (3) provided along the door opening edge of the automobile body (2) and has a substantially U-shaped cross section having a bottom wall (11), a vehicle inner wall (12), and a vehicle outer wall (13). A linear portion formed by an extrusion molding portion (E), and an extrusion molding portion including an attachment base portion (10) in which a core material (14) is embedded, and a hollow seal portion (20) continuous to the vehicle outer wall; An opening seal comprising a corner portion formed by a molded portion (D), wherein the corner portion is formed between the hollow seal portion of the extruded portion and the outer wall of the vehicle. At least substantially the upper half is cut, and a slit (17) is formed on the inner side wall and / or the outer side wall of the vehicle from the upper end thereof at a right angle to the longitudinal direction. Automobile door formed by Training seal.   It is attached to a mounting flange (3) provided along the door opening edge of the automobile body (2) and has a substantially U-shaped cross section having a bottom wall (11), a vehicle inner wall (12), and a vehicle outer wall (13). A linear portion formed by an extrusion molding portion (E), and an extrusion molding portion including an attachment base portion (10) in which a core material (14) is embedded, and a hollow seal portion (20) continuous to the vehicle outer wall; An opening seal composed of a corner portion formed by a molded portion (D) and cutting the hollow portion of the extrusion molding portion. An opening seal for automobiles, in which a slit (17) is formed on the inner side wall and / or the outer side wall of the vehicle from the upper end thereof at a right angle to the longitudinal direction, and the cut portion is formed by a molded part.   The opening seal for automobiles according to claim 1 or 2, wherein the slit (17) is filled with a molding material (M) at the time of molding.   When the slit (17) is formed on both the vehicle inner side wall (12) and the vehicle outer side wall (13), the lower ends (17a) of both slits are aligned on the same horizontal line (L). Or the opening seal for motor vehicles of 3.

Images