JP2005313776A - Visor for automobile and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a visor for an automobile capable of restraining generation of wind roar during high speed running of the automobile and having high strength with its eaves body neither bent nor broken while being mounted to the automobile. <P>SOLUTION: The visor 1 for an automobile is integrally formed in a long V-shape by injection-molding transparent synthetic resin colored in pale black. The eaves body 2 is provided so as to expand outward. A belt-like abutting plate 3 is integrally provided along the upper end edge of the eaves body 2. A belt-like reinforcement rib 6 is provided to be orthogonal to the eaves body 2 inside the lower end edge of the eaves body 2. Further, at the lower end of the abutting plate 3, three nearly downward trapezoidal lower engaging parts 4, 4 ... are provided to project downward from the upper end of the inner face of the eaves body 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automobile visor that is mounted on a window frame of an automobile as an awning or rain shield.

  As a visor for an automobile that functions as an awning or a rain shield, as shown in FIG. 12, a contact plate 53 is provided at the base end of a housing 52, and the contact plate 53 is attached to a window frame by a double-sided adhesive tape 54 or the like. 55, and by using the mounting bracket 56 to engage the protruding portion 57 of the window frame 55 with the portion 60 protruding from the lower end of the contact plate 53 to the inside of the casing 52, One that is mounted above the window frame 55 is known (Patent Document 1).

  Also, in the manufacture of automobile visors, injection molding is widely adopted from the viewpoint of cost reduction. When the automobile visor having the shape as described in Patent Document 1 is formed by such injection molding, it is necessary to form a portion 60 that protrudes from the lower end of the contact plate 53 to the inside of the casing 52. As described above, the resin is used in a state where the cavity forming surface 65 of the slide core 63 is brought close to the cavity forming surface 64 of the upper die 61 using the mold 66 in which the slide core 63 is installed between the upper die 61 and the lower die 62. After the molding, the slide core 63 is slid so that the cavity forming surface 65 of the slide core 63 is separated from the cavity forming surface 64 of the upper mold 61 (FIG. 13 (FIG. 13 (a)). b)), it is necessary to separate the upper mold 61 and the lower mold 62 from each other.

Japanese Utility Model Publication No.6-2809

  However, the visor 51 for automobiles formed by injection molding as described above has a housing 52 that is a simple curved plate member. The accompanying noise (hereinafter referred to as wind noise) increases. Further, when a large impact is applied to the housing 52 when it is mounted on an automobile or during snowfall, the housing 52 may be bent or damaged.

  In order to eliminate such drawbacks, reduce wind noise during traveling, and increase the structural strength of the visor, a technique for bending the lower edge of the collar portion inward has also been developed. However, in the conventional manufacturing method by injection molding, the slide core must be separated in a direction orthogonal to the direction in which the upper mold and the lower mold are separated after the resin is injected. Cannot be bent inward at a substantially right angle.

  The object of the present invention is to solve the problems of the above-described conventional automobile visor, can be attached with high strength without impairing the appearance, and can suppress the generation of wind noise even when the automobile is running at high speed, and to the automobile. An object of the present invention is to provide an automotive visor having a high strength that prevents the casing from being bent or broken when the casing is mounted. Another object of the present invention is to provide a manufacturing method for easily and inexpensively manufacturing a high-strength visor with reduced wind noise.

  Among the present inventions, the configuration of the invention described in claim 1 is a long shape integrally provided so that the belt-like housing bulges outward along the lower end edge of the belt-like contact plate. A lower engagement portion for locking a metal fitting that engages with a window frame of the vehicle, and at least a part of a lower end of the abutting plate, and downward from the inside of the housing. In addition to being provided so as to protrude, a band-shaped reinforcing rib is provided integrally with at least a part of the lower end edge of the casing so as to form a predetermined angle with the casing. The predetermined angle means any angle between 60 degrees and 120 degrees.

  The structure of the invention described in claim 2 is that, in the invention described in claim 1, a belt-like reinforcing rib is provided on the entire lower end edge of the casing.

  According to a third aspect of the present invention, there is provided a first mold for forming the outer surface of the housing and the outer surface of the contact plate, and a second mold for forming the inner surface of the housing and the inner surface of the contact plate. A manufacturing method for manufacturing the visor for an automobile according to claim 1 by injection molding using a mold, wherein a lower side member is attached to a base end of a portion forming an inner surface of a casing of a second mold. A cavity for forming the joint is formed, and a slide core is formed above the cavity for forming the lower engagement part so that it can slide into the interior from a position flush with other parts. In addition, a groove for forming the folded portion is formed at the tip of the portion forming the inner surface of the housing of the second mold, and the first mold and the second mold are joined to each other. After injecting the molten resin and cooling, immerse the slide core of the second mold into place Forming a lower engaging portion by which, thereafter, the first mold and is moved away and the second mold is to take out the molded article along the depth direction of the groove of the second mold.

  According to a fourth aspect of the present invention, there is provided a mounting structure for mounting the visor for an automobile according to the first or second aspect to an automobile by a mounting bracket bent in a substantially U shape. The contact plate is bonded to the window frame of the automobile with a double-sided adhesive tape, and an engaging portion is provided on one folded portion of the mounting bracket, and a grip portion is provided on the other folded portion. In the state where the engaging portion of the mounting bracket is engaged with the lower engaging body of the automobile visor, and the gripping portion grips only the protruding piece provided on the window frame of the automobile, the protruding piece of the window frame is mounted by the mounting bracket. A structure for mounting a visor for an automobile, wherein the lower projection and the lower projection are sandwiched together.

  According to a fifth aspect of the present invention, there is provided a structure according to the fourth aspect of the invention, wherein the holding parts are provided on the left and right sides of the locking part of the mounting bracket, and the holding parts are provided under the visor for the automobile. The side engaging portion is held down.

  According to the visor for an automobile according to claim 1, the generation of wind noise when the automobile is traveling at high speed is reduced, and the chassis is bent or damaged when it is attached to the automobile or when there is snow. The situation can be effectively prevented. In addition, according to the automobile visor described in claim 2, since the strength of the housing is extremely high, it is possible to prevent the housing from being damaged with higher accuracy. In addition, according to the visor for an automobile of the first aspect, the lower engagement body that is the engagement portion with the mounting bracket is hidden behind the casing and cannot be directly seen from the outside, so that the appearance is not impaired. It can be mounted on a car with high mounting strength.

  According to the method of manufacturing a visor for an automobile according to claim 3, a visor having high strength and reduced wind noise during traveling as described above can be manufactured very easily and inexpensively by injection molding. Can do.

  According to the mounting structure for an automobile visor according to claim 4, the automobile visor can be attached to the automobile with high attachment strength, so that it does not fall off even when subjected to a large impact during traveling of the automobile. . In addition, according to the attachment structure of claim 5, the automobile visor can be attached to the automobile with extremely high attachment strength, and the rattling of the automobile visor can be effectively prevented while the automobile is running. Is possible.

  Hereinafter, an embodiment of an automobile visor and a method for manufacturing the same according to the present invention will be described in detail with reference to the drawings. 1 and 2 show a visor for an automobile, and the visor 1 for an automobile is formed into a long, U-shape by a transparent synthetic resin (for example, polyacrylic resin) colored in a thin black color. It is integrally formed. And the housing | casing 2 is provided so that it may bulge outward, and along the upper end edge of the housing 2, the strip | belt-shaped contact board 3 is provided integrally. Further, a strip-shaped reinforcing rib 6 is provided inside the lower end edge of the housing 2 so as to be orthogonal to the housing 2.

  Further, at the lower end of the contact plate 3, three lower engaging portions 4, 4... Are provided so as to protrude downward from the upper end of the inner surface of the housing 2. FIG. 3 is an enlarged view of the lower engagement portion 4. The lower engagement portion 4 is formed in a downward trapezoidal shape, and the vehicle visor 1 is attached to the vehicle in the center. When this is done, a metal fitting hole 5 is formed for locking the metal fitting.

[Visor manufacturing method]
4 and 5 show a mold for injection molding the above-described automobile visor 1. The mold 11 includes an upper mold (movable mold) 12 as a first mold and a second mold. It consists of a lower mold (fixed mold) 13 that is a mold, and when combined, a long, hollow-shaped cavity 14 is formed. As shown in FIG. 5, the cavity 14 is provided with a housing forming portion 24, a contact plate forming portion 15, a lower engagement portion forming portion 16, and a reinforcing rib forming portion 17. The outer surface is substantially vertical, and the lower surface of the reinforcing rib forming portion 17 is substantially horizontal.

  In addition, a runner 18 for injecting resin into the cavity 14 is provided at the center of the lower mold 13 and communicates with the cavity 14 through a small-diameter gate 19. On the other hand, three rectangular parallelepiped slide cores 20, 20... Are installed above the lower engagement portion forming portion 15 of the lower mold 13. 6 and 7 show the installation part of the slide core 20. On the upper side of the portion p forming the inner surface of the contact plate 3 of the lower mold 13, a lower engagement portion forming portion 16 is provided in a concave shape. Ribs 21 for forming the joint holes 5 are provided. Further, a core insertion hole 22 is formed so as to be adjacent to the lower engagement portion forming portion 16, and a rectangular columnar slide core 20 is fitted into the core insertion hole 22. Further, a hydraulic cylinder 23 is attached to the base end of the slide core 20. The slide core 20 protrudes and slides from the position where the tip surface is flush with the periphery of the core insertion hole 22 along the core insertion hole 22 by the cylinder 23.

  FIG. 8 shows a state in which the visor 1 for an automobile is manufactured by injection molding using the mold 11. In the case of injection molding using the mold 11, each of the slide cores 20, 20... Is protruded to a position where the tip surface thereof is flush with the periphery of the core insertion hole 22. The lower mold 13 is matched. Then, as shown in FIG. 8A, the melted resin (for example, polyacrylic resin) is filled into the cavity 14 from the runner 18 through the gate 19, and the resin is cooled by being left for a predetermined time. Thereafter, as shown in FIG. 8B, the slide cores 20, 20... Are immersed until their tips are located below the lower engaging portion forming portion 16. In addition, by immersing the slide cores 20, 20... In this manner, the height of the inner portion (q in FIG. 8B) of each slide core 20, 20. It will be located below the lower end of the formation part 16. Thereafter, as shown in FIG. 8C, the upper mold 12 and the lower mold 13 are separated from each other by moving the upper mold 12 in the horizontal direction. Then, as shown in FIG. 8D, one cycle of injection molding is completed by taking out the automobile visor 1 as a molded product from the opened cavity. As described above, in the lower mold 13, the height of the inner portion (q in FIG. 8B) of each slide core 20, 20.. However, since it is located below the lower end of the lower engaging portion forming portion 16, it can be easily removed from the lower die 13 by pulling the molded product in the horizontal direction.

  Since the visor 1 for automobiles is manufactured by the injection molding process as described above, the lower engaging portion 4 and the casing projecting downward from the upper end of the casing 2 despite the very easy process. The reinforcing ribs 6 orthogonal to 2 can be integrally provided at the same time. Further, according to the above-described injection molding process, since the injection molding can be performed only with the two molds of the upper mold 12 and the lower mold 13, the cost of mold production can be kept low.

  The automobile visor 1 manufactured as described above is used by being mounted on the window frame 36 of the automobile B as shown in FIG. FIG. 10 shows a mounting bracket 31 used when the vehicle visor 1 is mounted on the vehicle B. The mounting bracket 31 is cut into a substantially U shape after cutting a metal plate into a predetermined shape. The center engaging part 32 is provided in the center of the front side, and the holding parts 33, 33 are provided on the left and right of the center engaging part 32. Further, upper engaging portions 34 are provided above the left and right sides of the rear side, and lower gripping portions 35 and 35 are provided below the left and right sides of the rear side.

  FIG. 11 shows a state in which the visor 1 for an automobile is attached by the mounting bracket 31 (cross section taken along the line DD in FIG. 9). In the visor 1 for an automobile, the inner side of the contact plate 3 is adhered to the window frame 36 by a double-sided adhesive tape 37. Further, in a state where the central engagement portion 32 of the mounting bracket 31 is locked in the metal engagement hole 5 of the lower engagement portion 4, the protruding pieces 38 of the window frame 36 are formed by the lower grip portions 35 and 35. The lower engaging portion is held by gripping the tip and engaging with the band-like protrusion 39 provided on the inner side of the protruding piece 38 of the window frame 36 by the upper engaging portions 34, 34 (holding the band-like protrusion 39). 4 is sandwiched between the fittings 31 together with the projecting pieces 38 of the window frame 36. A glass run 40 is installed inside the mounting bracket 31.

  Since the visor 1 for automobiles is mounted on the automobile B in the above-described manner, the attachment strength is high, and the automobile visor 1 may never come off even when subjected to strong winds or strong impacts during high-speed driving of the automobile B. do not do. Further, since the reinforcing rib 6 is formed on the housing 2, the rigidity is high, and the generation of wind noise can be suppressed to a low level even when the automobile B is traveling at high speed. Furthermore, the housing 2 is not bent or damaged even when the housing 2 is subjected to a strong impact when mounted on the automobile B or during snowfall.

  Further, as described above, the visor 1 for an automobile uses the mounting bracket 32 and grips only the protruding piece 38 of the window frame 36 by the lower gripping portions 35 and 35, and the upper engagement portions 34 and 34 and the center engagement. Since the portion 32 is attached to the automobile B with the projecting piece 38 of the window frame 36 and the lower projections 4, 4,... Held together, the mounting strength is extremely high and the automobile B is large during traveling. Even when subjected to an impact, it will not fall out. In addition, since the periphery of the metal fitting hole 5 of the lower projection 4 is held by the holding parts 33, 33 of the mounting metal 32, the vehicle B does not rattle during traveling.

  The configuration of the visor for an automobile of the present invention is not limited to the aspect of the above embodiment, and the configuration of the shape and structure of the contact plate, the casing, the lower engagement portion, the mounting bracket, etc. As long as it does not deviate from the gist of the present invention, it can be changed as needed. For example, the visor for automobiles is not limited to a transparent one as a whole, and may be one in which the upper part of the casing is painted opaquely. When such a configuration is adopted, there is an advantage that the lower engagement portion and the mounting bracket are not visible from the outside of the housing, so that the appearance is further improved.

  In addition, the configuration of the method for manufacturing an automotive visor is not limited to the above embodiment, and the configuration of the mold shape and structure is not limited to the scope of the present invention. Can be changed as appropriate. For example, the mold is not limited to the one in which the resin is directly injected into the cavity from the runner, and the resin can be injected into the cavity through the cavity. When such a mold is used, there is an advantage that it is possible to effectively prevent the occurrence of distortion in the molded product.

  Since the visor for automobiles of the present invention exhibits excellent effects as described above, it can be suitably used as an awning or rain shield for automobiles.

It is a front view of the visor for cars. It is sectional drawing (AA sectional view taken on the line in FIG. 1) of the visor for motor vehicles. It is explanatory drawing which shows the installation part of a lower side engaging part. It is explanatory drawing which shows the metal mold | die for injection molding the visor for motor vehicles. It is explanatory drawing (BB sectional drawing in FIG. 4) which shows the metal mold | die for injection molding the visor for motor vehicles. It is explanatory drawing which shows the installation part of a lower mold | type slide core (description figure seen from the C direction in FIG. 5). It is a perspective view which shows the installation part of a lower type slide core. It is explanatory drawing which shows a mode that the visor for motor vehicles is injection-molded. It is explanatory drawing which shows the use condition of the visor for motor vehicles. It is a perspective view which shows the attachment metal fitting for mounting | wearing a motor vehicle visor. It is explanatory drawing which shows the attachment state (DD sectional view in FIG. 9) of the visor for motor vehicles by a mounting bracket. It is explanatory drawing which shows the state which mounted | wore the motor vehicle with the conventional vehicle visor. It is explanatory drawing which shows a mode that the conventional automotive visor is injection-molded.

Explanation of symbols

  1 ... Vehicle visor for car, 2 ... Body, 3 ... Contact plate, 4 ... Lower engaging part, 6 ... Reinforcing rib, 11 ... Die, 12 ... Upper die, ... Lower mold, 16 ·· Lower engagement portion forming portion, 20 ·· Slide core, window frame 36, B ·· Automotive.

Claims (5)

A long automotive visor provided integrally so that the belt-shaped housing bulges outward along the lower edge of the belt-shaped contact plate,
A lower engaging portion for locking a metal fitting that engages with a window frame of an automobile is provided so as to protrude downward from at least a part of the lower end of the contact plate inside the housing. With
A visor for an automobile, wherein a band-shaped reinforcing rib is integrally provided at least at a part of a lower end edge of the casing so as to form a predetermined angle with the casing.   The automobile visor according to claim 1, wherein a belt-like reinforcing rib is provided on the entire lower end edge of the casing. Claim 1 by injection molding using a first mold for forming the outer surface of the housing and the outer surface of the contact plate, and a second mold for forming the inner surface of the housing and the inner surface of the contact plate. A manufacturing method for manufacturing the automobile visor according to claim 1,
A cavity for forming the lower engaging portion is formed at the base end of the portion forming the inner surface of the housing of the second mold, and the other is formed above the cavity for forming the lower engaging portion. The slide core is formed so as to be slidable from the position flush with the inner portion of the second mold, and the folded portion is formed at the tip of the portion forming the inner surface of the second mold housing. A groove is formed,
After injecting molten resin by joining the first mold and the second mold and cooling,
A lower engaging portion is formed by immersing the slide core of the second mold to a predetermined position, and then
A method for manufacturing an automotive visor, wherein the first mold and the second mold are separated from each other, and a molded product is taken out along a depth direction of a groove of the second mold. An attachment structure for attaching the visor for an automobile according to claim 1 or 2 to an automobile by an attachment fitting bent in a substantially U shape,
While the contact plate is bonded to the window frame of the car with double-sided adhesive tape,
An engagement portion is provided in one folded portion of the mounting bracket, and a grip portion is provided in the other folded portion,
In a state where the engaging portion of the mounting bracket is engaged with the lower engaging body of the automobile visor, and the gripping portion grips only the protruding piece provided on the window frame of the automobile, the mounting bracket and the protruding piece of the window frame are An automotive visor mounting structure characterized in that a lower protrusion is held together. There are holding parts on the left and right of the locking part of the mounting bracket,
The mounting structure for an automobile visor according to claim 4, wherein the holding part holds the lower engaging part of the automobile visor.

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