JP7273685B2 - Injection molded article and its manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an injection-molded article to be attached to a door mirror or the like and a method for manufacturing the same.

2. Description of the Related Art As an example of an injection-molded article attached to a door mirror or the like of an automobile, an injection-molded article comprising a housing and a lens which are injection-molded respectively is known.

As an example of the above injection-molded body, in Patent Document 1, a housing and a lens are injection-molded with a resin material, respectively, and after the injection molding, a resin material is injected into the butted portion where the housing and the lens are butted together. An injection molded body is described.

Japanese Patent Application Laid-Open No. 2010-100080

However, in the injection-molded body described in Patent Document 1, when a transparent resin material is used as a bonding resin material that is injected into the abutted portion between the housing and the lens, the housing is separated from the resin material. Leakage of light occurred on the back side. In addition, the mold for injection molding has a complicated cavity shape to secure the flow path of the resin material for joining the housing and the lens. was required, it was difficult to maintain and maintain the mold.

SUMMARY OF THE INVENTION An object of the present invention is to provide an injection-molded article and a method of manufacturing the same in which light leakage is reduced and alignment of a molding die during injection molding is facilitated.

According to one aspect of the present invention, a first molding member provided with an accommodating portion that accommodates an encapsulating member, a second molding member that covers the accommodating portion and is joined to the first molding member, and a resin bonding material that joins the molded member and the second molded member by injection molding , wherein the first molded member is provided at a peripheral edge portion of the accommodating portion, and the A first wall portion provided with a first contact surface that contacts a second molding member, the second molding member being provided facing the first wall portion and the first contact surface a protruding portion having a protruding surface extending from the first contact surface and protruding outward; A rib provided through the second wall portion and the space portion is provided at a tip end portion of the overhanging portion, and the resin bonding material is provided in the space portion so as to extend between the second wall portion and the overhanging portion. contacting the portion and the rib.

In another aspect of the present invention, the rib is provided along the entire circumference of the peripheral portion of the first molded member.

In another aspect of the present invention, as the encapsulating member, a light guide member for guiding light emitted from a light emitting element and a substrate having wiring electrically connected to the light emitting element are accommodated in the accommodating portion. ing.

In another aspect of the invention, the steps of (a) injection molding a first molding member comprising a housing; (b) injection molding a second molding member; (d) forming an assembly structure by mounting an encapsulation member in a housing portion, mounting the encapsulation member, and then assembling the first molding member and the second molding member to form an assembly structure; disposing the assembly structure in a cavity and filling a resin bonding material into a space defined by a part of the first molded member and a part of the second molded member; The first molding member is provided on the periphery of the housing portion and includes a first wall portion provided with a first contact surface that contacts the second molding member, and the second molding member includes the A second wall portion provided opposite to the first wall portion and provided with a second contact surface that contacts the first contact surface, the first wall portion being provided with the first contact surface a protruding portion having a protruding surface continuously protruding from the surface and protruding outward; The part of the first molded member is the protruding portion and the rib, the part of the second molded member is the second wall, and in the step (d), the second wall is The resin bonding material is filled into the space so as to come into contact with the protruding portion and the rib, and the first molding member and the second molding member are bonded with the resin bonding material.

ADVANTAGE OF THE INVENTION According to this invention, facilitation of the alignment of a molding die in manufacture of an injection-molded article can be achieved, reducing the light leakage in an injection-molded article.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the mirror apparatus to which the injection molding (lamp) of this invention is attached, (a) is a rear view, (b) is a front view. 1 is a perspective view showing the structure of an injection molded article (lamp) of the present invention; FIG. FIG. 3 is a front view showing the internal structure of the injection molded body shown in FIG. 2 with lenses removed; 3 is an enlarged cross-sectional view showing the structure taken along line AA shown in FIG. 2; FIG. 3 is an enlarged cross-sectional view showing the structure taken along line BB shown in FIG. 2; FIG. FIG. 3 is a perspective view showing the structure of a housing in the injection molded body shown in FIG. 2; FIG. 3 is a perspective view showing the structure of a lens in the injection molded body shown in FIG. 2; 3 is a perspective view showing a structure in which a lens is covered on a housing in manufacturing the injection molded body shown in FIG. 2; FIG. FIG. 3 is a cross-sectional view showing a structure in which an assembly structure is arranged in a mold cavity in the manufacture of the injection molded body shown in FIG. 2; 3 is a cross-sectional view showing a state in which a molding die is filled with a resin bonding material in the manufacture of the injection molded body shown in FIG. 2; FIG. FIG. 3 is a perspective view showing the structure of a first modified example of the injection molded article of the present invention; FIG. 4 is a cross-sectional view showing the structure of a second modified example of the injection molded article of the present invention; It is a front view which shows the structure of the mirror apparatus by which the injection molding body of the modification of this invention was assembled|attached. FIG. 5 is a partial cross-sectional view showing a matching structure of a molding die at the time of bonding the housing and the lens for which the inventors conducted a comparative study;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The injection-molded article of the present embodiment is assembled to a mirror device attached to a vehicle body such as an automobile, for example, a door or a fender. The mirror device 20 shown in FIGS. 1A and 1B includes a stay bracket 27 fixed to the vehicle body, a body 25 attached to the stay bracket 27 via a folding mechanism (not shown), and a body 25 attached to the stay bracket 27 via a folding mechanism (not shown). a mirror 26 housed in 25; Further, the mirror device 20 includes a lamp 1 provided at a portion of the body 25 opposite to the portion where the mirror 26 is arranged, stay covers 23 and 24 covering the stay bracket 27, and a main cover 21 covering the periphery of the lamp 1. and a low cover 22 that covers the periphery of the lamp 1. - 特許庁Also, the main cover 21 covers the periphery of the mirror 26 .

The lamp 1 assembled to the mirror device 20 functions as a direction indicator by blinking when the driver operates a switch provided in the interior of the vehicle.

The lamp 1 of the present embodiment is, for example, an injection-molded body in which two members injection-molded with mutually different resins are bonded with a resin bonding material 9 .

In this embodiment, as an example of an injection molded product, a lamp 1 attached to a door mirror or the like of an automobile as shown in FIG. 2 will be described. Furthermore, the configuration of the lamp 1 will be described by taking up a housing (first molding member) 2 and a lens (second molding member) 3 as examples of constituent members of the lamp 1 . In other words, the injection molded body of the present embodiment is the lamp 1 formed by bonding the housing 2 and the lens 3 molded by injection molding with the resin bonding material 9 .

The lamp 1 has a hollow structure, and a sealing member is mounted in this hollow portion (accommodating portion 2a, which will be described later).

FIG. 2 is a perspective view of the lamp 1, and FIG. 3 is a front view showing the sealing member with the lens 3 removed and housed in the hollow portion (receiving portion 2a) inside the lamp 1. As shown in FIG. 2 shows the overall external structure including the exposed and non-exposed portions of the lamp 1 when viewing the mirror device 20 of FIG. 1 from the front side of the automobile. Therefore, the vertical direction in FIG. 3 is the width direction (extending direction P) of the housing 2 .

The configuration of the lamp 1 will be described. ) 3 and a resin bonding material 9 that contacts the housing 2 and the lens 3 to bond the housing 2 and the lens 3 together.

As shown in FIGS. 4 to 6, the housing 2 has a wall portion (first wall portion) provided on the periphery of the housing portion 2a and provided with a first contact surface 2j that contacts the lens 3. 2d. That is, the wall portion 2 d is a side wall (standing wall) of the housing 2 .

On the other hand, as shown in FIGS. 4, 5 and 7, the lens 3 is provided on the periphery of the housing portion 2a so as to face the wall portion 2d, and is a second contact surface that contacts the first contact surface 2j. It has a wall portion (second wall portion) 3b provided with a surface 3e. That is, the wall portion 3b is also a side wall (standing wall) of the lens 3. As shown in FIG. The upper end of the wall portion 2d and the lower end of the wall portion 3b are in contact with each other at a first contact surface 2j and a second contact surface 3e. Specifically, as shown in FIGS. 4 and 5, a concave portion 2g is formed at the upper end of the wall portion 2d, and a convex portion 3c is formed at the lower end of the wall portion 3b. The first contact surface 2j of the wall portion 2d and the second contact surface 3e of the wall portion 3b are brought into contact with each other by fitting the concave portion 2g into the convex portion 3c of the wall portion 3b.

The wall portion 2d includes a protruding portion 2h having a protruding surface 2i that protrudes outward from the first contact surface 2j, and a wall portion 3b and a space portion 14 at the tip of the protruding portion 2h. and ribs 2b provided on the As a result, a groove-like space 14 is formed outside the joint 4 between the housing 2 and the lens 3 and is composed of the wall 3b, the projecting portion 2h of the housing 2, and the rib 2b. The protruding portion 2h including the protruding surface 2i and the ribs 2b are provided along the entire periphery of the housing 2. As shown in FIG. Specifically, the rib 2b is provided along the wall 3b with the wall 3b and the space 14 interposed therebetween. As a result, the space 14 is also provided inside the rib 2b over the entire periphery of the housing 2 . In other words, the space 14 is also provided over the entire circumference of the joint 4 between the housing 2 and the lens 3 .

In such a structure of the housing 2 and the lens 3, the resin bonding material 9 is provided in the space portion 14 and is in contact with (adheres to) the protruding surfaces 2i of the wall portion 3b and the protruding portion 2h and the ribs 2b. . As a result, the housing 2 and the lens 3 are bonded with the resin bonding material 9 over the entire periphery.

Here, as shown in FIG. 3, in the accommodating portion 2a of the housing 2, a light emitting element (LED (Light Emitting Diode)) 8 or light emitted from the LED 8 is provided as a sealing member so as to direct the light emitted from the LED 8 toward the lens 3 shown in FIG. A guiding light guide member 5 is accommodated. The light guide member 5 is an elongated member made of a synthetic resin such as an acrylic resin and formed into a cylindrical shape.

Furthermore, the board|substrate 6 which has the wiring 6a electrically connected with LED8 is accommodated in the accommodating part 2a. The substrate 6 is attached to a fixing plate 15 and positioned by two positioning pins 16, as shown in FIG. A terminal 7 that is a connection terminal for transmitting and receiving signals to and from the outside of the lamp 1 is attached to the substrate 6 . Further, the LED 8 is mounted on the sub-board 6b arranged at the end of the housing portion 2a and arranged inside the light guide member 5. As shown in FIG.

In the lamp 1, when a voltage is applied to the LED 8 through the wiring 6a, the LED 8 is lit. Light emitted from the LED 8 enters the light guide member 5 and is reflected within the light guide member 5 . The reflected light passes through the lens 3 and reaches the outside of the lamp 1. - 特許庁

In the lamp 1 of this embodiment, the housing 2 is made of an opaque resin material that does not transmit light, while the lens 3 is made of a transparent resin material that transmits light. Therefore, the light emitted from the LED 8 is guided to the tip side of the lamp 1 by the light guide member 5, passes through the lens 3, and is emitted to the front side of the lamp 1 (the front side of the automobile). Further, another LED (not shown) is provided on the sub-board 6 in addition to the LED 8, and this LED transmits through the lens 3 to the rear side of the lamp 1 through the viewing portion (viewing window) 25a. The light is emitted to (the rear side of the automobile). However, since the housing 2 is made of a resin material that does not allow light to pass therethrough, light is not directly emitted from portions other than the lens 3 in the structure of the housing 2 itself.

The resin bonding material 9 is made of the same resin material as the lens 3, that is, a transparent resin material that allows light to pass therethrough.

As shown in FIG. 5, the accommodating portion 2a of the housing 2 is composed of a bottom portion 2e and a wall portion 2d which is a standing wall connected to the bottom portion 2e. The wall portion 2d includes a protruding portion 2h having a protruding surface 2i extending outward from the first contact surface 2j of the wall portion 2d along the entire circumference of the housing 2, and a protruding portion 2h. 2h has a wall portion 3b and a rib 2b provided via a space portion 14 at the tip portion thereof.

On the other hand, the portion of the lens 3 that covers the accommodation portion 2a of the housing 2 is composed of a ceiling wall 3a and a wall portion 3b that is a standing wall connected to the ceiling wall 3a. The wall portion 3b has an end shape that abuts on the wall portion 2d of the housing 2. As shown in FIG. That is, the second contact surface 3e at the lower end of the wall portion 3b is in contact with the first contact surface 2j at the upper end of the wall portion 2d of the housing 2, so that the first contact surface 2d of the housing 2 contacts. A shape matching 2j is formed. Specifically, a concave portion 2g is formed at the upper end of the wall portion 2d of the housing 2, and a convex portion 3c is formed at the lower end of the wall portion 3b of the lens 3, so that the concave portion of the wall portion 2d of the housing 2 is formed. 2g and the convex portion 3c of the wall portion 3b of the lens 3 are fitted. In other words, the first contact surface 2j of the wall portion 2d of the housing 2 and the second contact surface 3e of the wall portion 3b of the lens 3 are in contact with each other.

That is, the first contact surface 2j of the wall portion 2d of the housing 2 and the second contact surface 3e of the wall portion 3b of the lens 3 are in contact with each other.

When the housing 2 and the lens 3 are joined together, the wall portion 2d of the housing 2 at the joining portion 4 (abutting portion) has a protruding portion 2h provided with a protruding surface 2i over the entire circumference of the housing 2. and a rib 2b arranged at the tip of the projecting portion 2h. More specifically, a groove-shaped space 14 is formed outside the joint 4 between the housing 2 and the lens 3 and is composed of the wall 3b, the projecting portion 2h of the housing 2, and the rib 2b. Further, a resin bonding material 9 is provided in this space portion 14 .

Therefore, the resin bonding material 9 is surrounded by the wall portion 3b of the lens 3, the projecting portion 2h of the housing 2, and the ribs 2b. That is, in the lamp 1, there is no portion where the resin bonding material 9 is exposed to the housing 2 side.

The resin bonding material 9 is provided in the space 14 surrounded by the wall portion 3b of the lens 3, the protruding portion 2h of the housing 2, and the rib 2b. The protruding surface 2i of 2h and the wall portion 3b of the lens 3 are brought into contact (close contact). As a result, the housing 2 and the lens 3 are bonded with the resin bonding material 9 . In other words, at the joint 4 between the housing 2 and the lens 3, the resin joint material 9 comes into contact with (adheres to) the three members, the wall 3b of the lens 3, the wall 2d of the housing 2, and the rib 2b. A housing 2 and a lens 3 are joined together.

Next, a method for manufacturing the lamp 1 of this embodiment will be described.

First, the housing (first molded member) 2 shown in FIG. 6 is molded by injection molding. The housing 2 has an accommodating portion 2a. Further, the lens (second molded member) 3 shown in FIG. 7 is molded by injection molding. However, the housing 2 and the lens 3 may be molded by resin molding other than injection molding.

Here, the housing 2 shown in FIG. 6 is made of an opaque resin material that does not transmit light. Further, the housing 2 is provided with a wall portion 2d provided on the peripheral portion of the housing portion 2a and provided with a first contact surface 2j that contacts the lens 3. The wall portion 2d is formed as shown in FIG. a protruding portion 2h having a protruding surface 2i extending outward from the first contact surface 2j; 2b and.

A concave portion 2g is formed in the first contact surface 2j of the wall portion 2d.

Further, in the present embodiment, the protruding portion 2h including the protruding surface 2i and the ribs 2b are provided along the entire periphery of the housing 2. As shown in FIG.

On the other hand, the lens 3 shown in FIG. 7 is made of a transparent resin material that transmits light. Further, as shown in FIG. 4, the lens 3 is provided with a second contact surface 3e which is provided on the peripheral edge of the housing portion 2a so as to face the wall portion 2d and contacts the first contact surface 2j. A wall portion 3b is provided. A convex portion 3c is formed on the second contact surface 3e of the wall portion 3b.

Next, as shown in FIG. 3, the enclosing member is attached to the accommodating portion 2a of the housing 2. Next, as shown in FIG. Here, an elongated light guide member 5 is attached to an accommodation portion 2a of a housing 2, and a substrate 6, wirings 6a, a sub substrate 6b, and the like are also attached. After mounting sealing members such as the light guide member 5 and the substrate 6, the housing 2 and the lens 3 are assembled to form an assembly structure 13 shown in FIG.

At this time, as shown in FIGS. 4 and 5, the first contact surface of the wall portion 2d is adjusted so that the concave portion 2g of the wall portion 2d of the housing 2 and the convex portion 3c of the wall portion 3b of the lens 3 are fitted. 2j and the second contact surface 3e of the wall portion 3b are brought into contact with each other, thereby forming the assembly structure 13 shown in FIG. In addition, in the assembly structure 13, protruding portions 2h and ribs 2b are provided over the entire periphery of the housing 2, and a groove-shaped space portion 14 is formed inside the ribs 2b. ing. In this state, as shown in FIG. 9, the lens 3 is held in an upper die (upper die) 10 of a molding die 12, and the housing 2 molded at a position different from that of the lens 3 is attached to the lower die. The light guide member 5, the substrate 6 and the like are accommodated in the accommodating portion 2a of the housing 2 in the state of being attached to the mold (lower mold) 11 as shown in FIG. After that, the lower mold (lower mold) 11 is moved directly below the upper mold (upper mold) 10, and the upper mold 10 is lowered toward the lower mold 11 to form the upper mold 10 and the lower mold. 11 is used to clamp the mold. As a result, an assembly structure 13 comprising the housing 2 and the lens 3 is formed in the cavity 10a as shown in FIG.

After clamping the molds, as shown in FIG. 10, the wall portion 3b of the lens 3, the projecting surface 2i of the projecting portion 2h of the housing 2, the ribs 2b of the housing 2, and the upper mold 10 of the mold 12 are assembled. The resin bonding material 9 is filled in the space portion 14 formed by a part of the . The space 14 is formed along the entire periphery of the housing 2 . The resin bonding material 9 is, for example, the same resin material as the lens 3, and is a transparent resin material that allows light to pass therethrough.

Here, when the resin bonding material 9 is filled, the resin bonding material 9 is placed in the space portion 14 so that the resin bonding material 9 is in contact with the ribs 2b and the protruding surfaces 2i of the wall portions 3b and the protruding portions 2h. to fill. Then, the housing 2 and the lens 3 are bonded with the resin bonding material 9 .

According to the lamp 1 of the present embodiment, the protruding portion 2h extending from the first contact surface 2j to the wall portion 2d of the housing 2 and protruding outward, and the lens 3 at the tip of the protruding portion 2h. The wall portion 3b and the ribs 2b arranged via the space portion 14 are provided. 2h and the rib 2b.

That is, the portion where the resin bonding material 9 is exposed to the housing 2 side of the lamp 1 can be eliminated. As a result, even when a transparent resin material is used as the resin bonding material 9, light leakage to the back side of the lamp 1 can be reduced. That is, leakage of light from the lamp 1 to the back side of the lamp 1 can be reduced.

Further, by filling the resin bonding material 9 in the space 14 formed by the wall portion 3b, the projecting portion 2h, and the ribs 2b, the resin bonding material 9 is applied to the outer peripheral surface of the wall portion 3b and the projecting portion. It can be brought into contact with three surfaces, the projecting surface 2i of 2h and the inner peripheral surface of the rib 2b. In other words, the resin bonding material 9 can be brought into close contact with three surfaces: the outer peripheral surface of the wall portion 3b, the protruding surface 2i of the protruding portion 2h, and the inner peripheral surface of the rib 2b.

As a result, the bonding strength between the housing 2 and the lens 3 can be increased by increasing the bonding strength between the housing 2 and the lens 3 .

In the lamp 1 of the present embodiment, as shown in FIG. 10, in the injection molding for joining the housing 2 and the lens 3, the mating surfaces 10b and 11b of the upper mold 10 and the lower mold 11 are parted. It can be only the mating surface of the line (PL).

Here, FIG. 14 is a view of a matching structure of a molding die at the time of joining the housing and the lens, which the present inventors compared and studied. In the comparative study structure shown in FIG. 14, the molding die 12 is complicated in order to secure the flow path of the resin material (resin bonding material 9) for bonding the housing 30 and the lens 40 during injection molding. It has a cavity shape. As a result, when the housing 30 is injection molded, when the upper mold 10 and the lower mold 11 are matched, the matching surfaces 10c and 11c are also matched in addition to the matching at the parting line (the matching surfaces 10b and 11b). There is a need to.

That is, when the housing 30 is injection-molded, it is necessary to perform die matching on the parting line (matching surfaces 10b and 11b) and on the matching surfaces 10c and 11c. There was a problem that it was difficult to deal with.

However, in manufacturing the lamp 1 of the present embodiment, as shown in FIG. 10, the mating surfaces 10b and 11b of the upper mold 10 and the lower mold 11 can be used only as the mating surfaces of the parting line.

This facilitates alignment of the molding die 12 in manufacturing the lamp 1 . That is, it is possible to facilitate the fabrication of a new molding die 12, and to facilitate the alignment accuracy of the parting lines of the molding die 12 during maintenance. As a result, the cost of the molding die 12 can be reduced by simplifying the shape of the die.

Next, a modified example of this embodiment will be described.

In the first modification shown in FIG. 11, a rib 2b provided on the housing 2 is partially provided with a notch 2c. That is, the rib 2b is not provided over the entire periphery of the housing 2, but there is a part of the periphery (notch 2c) where the rib 2b is not provided. In other words, the housing 2 has a portion provided with the ribs 2b and a portion not provided with the ribs 2b at the periphery of the housing 2 .

In the second modification shown in FIG. 12, a through hole 2f is formed in the projecting portion 2h of the housing 2, and the through hole 2f is filled with the resin bonding material 9. As shown in FIG. Specifically, in the projecting portion 2h provided on the peripheral edge of the housing 2, a through hole 2f is formed at some point on the peripheral edge to penetrate the back side of the housing 2, and the through hole 2f is filled with resin. A bonding material 9 is filled.

11 and the through hole 2f shown in FIG. 12 are provided, the light from the lamp 1 is directed to the back side of the housing 2 (the lamp 1) through the notch 2c or the through hole 2f. (rear side). Then, as shown in FIG. 13, by forming a small display portion 26a on the mirror 26 of the mirror device 20, the light guided to the rear side of the lamp 1 by the notch portion 2c and the through hole 2f is The driver can visually recognize through the display portion 26 a of the mirror 26 . That is, when the driver performs an operation to blink the direction indicator, the light leaked to the rear side of the lamp 1 through the notch 2c and the through hole 2f is transmitted through the display portion 26a of the mirror 26 by the driver. You can see it and you can see that the turn signals are blinking. In this case, it is not necessary to provide the body 25 with a window for rearward viewing (viewing portion 25a) as shown in FIG. 1(b).

Even when the cutout portion 2c and the through hole 2f are formed, by forming the cutout portion 2c and the through hole 2f small, leakage of light from the lamp 1 due to the provision of the rib 2b can be reduced, and the intended light can be emitted. The effect of guiding the light can be sufficiently obtained.

It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, the notch 2c shown in the first modified example and the through hole 2f shown in the second modified example may be provided at one location or at a plurality of locations on the peripheral edge of the housing 2. may

1 lamp (injection molding)
2 housing (first molded member)
2a accommodating portion 2b rib 2c notch 2d wall portion (first wall portion)
2e bottom 2f through hole 2g recess 2h projecting portion 2i projecting surface 2j first contact surface 3 lens (second molded member)
3a ceiling wall 3b wall (second wall)
3c convex portion 3e second contact surface 4 joint portion 5 light guide member (encapsulating member)
6 substrate (encapsulation member)
6a wiring (encapsulation member)
6b sub-board (encapsulation member)
7 Terminal (enclosure member)
8 LED (encapsulation member)
9 resin bonding material 10 upper mold 10a cavity 10b, 10c mating surface 11 lower mold 11a cavity 11b, 11c mating surface 12 mold 13 assembly structure 14 space 15 fixing plate 16 positioning pin 20 mirror device 21 main cover 22 low cover 23, 24 stay cover 25 body 25a visual recognition part 26 mirror 26a display part 27 stay bracket 30 housing 40 lens

Claims (4)

a first molded member provided with an accommodating portion for accommodating the enclosing member;
a second molding member that covers the housing and is joined to the first molding member;
a resin bonding material for bonding the first molded member and the second molded member by injection molding ;
An injection molded body having
The first molding member includes a first wall portion provided on a peripheral edge portion of the housing portion and provided with a first contact surface that contacts the second molding member,
The second molding member includes a second wall portion provided opposite to the first wall portion and provided with a second contact surface that contacts the first contact surface,
The first wall portion includes a protruding portion having a protruding surface extending from the first contact surface and protruding outward, and a tip end portion of the protruding portion via the second wall portion and a space. provided with ribs;
The injection molded body, wherein the resin bonding material is provided in the space and is in contact with the second wall portion, the projecting portion, and the rib. 2. The injection molded article according to claim 1, wherein said rib is provided along the entire periphery of said first molding member. A light guide member for guiding light emitted from a light emitting element and a substrate having wiring electrically connected to the light emitting element are accommodated in the accommodating portion as the encapsulating member. 3. The injection molded article according to claim 1 or 2. (a) injection molding a first molded member comprising a housing;
(b) injection molding a second molded member;
(c) mounting an encapsulating member in the accommodating portion of the first molding member, and after mounting the enclosing member, assembling the first molding member and the second molding member to form an assembly structure; process and
(d) a step of placing the assembly structure in a mold cavity and filling a resin bonding material into a space defined by a portion of the first molding member and a portion of the second molding member; and,
has
The first molding member includes a first wall portion provided on a peripheral edge portion of the housing portion and provided with a first contact surface that contacts the second molding member,
The second molding member includes a second wall portion provided opposite to the first wall portion and provided with a second contact surface that contacts the first contact surface,
The first wall portion includes a protruding portion having a protruding surface continuous from the first contact surface and protruding outward, and a distal end portion of the protruding portion via the second wall portion and the space. a rib provided on the
the portion of the first molding member is the protruding portion and the rib, the portion of the second molding member is the second wall portion;
In the step (d), the space portion is filled with the resin bonding material so as to be in contact with the second wall portion, the protruding portion, and the rib, and the first molding member is bonded to the resin bonding material by the resin bonding material. A method for producing an injection molded body, characterized by joining the second molded member.

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