JP2005073406A - Resin molding for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent breakage of a cover in the direction opposite to the closing direction in a resin molding where a body and a cover coupled with the body through a thin hinge part are molded integrally. <P>SOLUTION: In the resin molding where a body 11 being fixed to an automobile component and a cover being coupled with the body through a thin hinge part 13 are molded integrally, a reinforcing rib 13a which is made thick at the opposite ends in the longitudinal direction of the thin hinge part 13 is provided in order to prevent breakage of the cover 12 in the direction opposite to the closing direction. Alternatively, stopper ribs 15 are projected integrally from the central part or the opposite side parts of the outer surface of the body or the cover at a position proximate to the thin hinge part 13, or a stopper pin 16 is fixed to project in order to prevent breakage of the cover 12 in the direction opposite to the closing direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a resin molded product for automobiles, and in particular, is a resin molded product in which a main body and a lid connected via a thin hinge portion are integrally molded, and is folded in a direction opposite to the closing direction of the lid. Is to prevent.

  Conventionally, in a resin molded product for automobile parts such as a protector, battery cover, relay box, etc. that are sheathed on a wire harness, a thin hinge part is provided on a body that covers the wire harness or houses a battery and a lid that covers the body. Are integrally formed through the above (see JP-A-2002-118924).

  However, the resin molded product is delivered to a car maker in a state where the main body and the lid are opened, and the main body and the lid may be closed in the assembly work of the vehicle in the car maker. For example, in the protector to be mounted on the wire harness, the lid cannot be fixed to the main body in advance according to the wiring direction of the wire harness with respect to the main body attached to the wire harness, and is left open. After the wire harness is fixed to the vehicle body and routed, the lid may be closed and fixed to the main body.

A resin molded product with a lid handled as described above has a thin hinge part that is folded largely in the direction opposite to the closing direction during transportation to the car maker or during assembly work at the car maker. There is a risk of damage. As described above, when the thin hinge portion is broken, the lid cannot be fixed to the main body, and it is necessary to replace a new resin molded product, which causes a problem that the assembly work at the car manufacturer is greatly delayed.
JP 2002-118924 A

  The present invention has been made in view of the above problems, and in a resin molded product in which a main body and a lid connected through a thin hinge portion are integrally molded, the lid is prevented from being folded in the opposite direction to the closing direction. Thus, the quality as a resin molded product is ensured.

In order to solve the above problems, the present invention firstly is a resin molded product in which a body externally mounted on an automobile part and a lid connected via a thin hinge portion are integrally molded,
Providing a resin molded article for an automobile, characterized by providing reinforcing ribs with thick ends at both ends in the length direction of the thin hinge portion for preventing the lid from being folded in the direction opposite to the closing direction. Yes.

  With the above configuration, reinforcing ribs are provided at both ends in the length direction of the thin-walled hinge portion, so that the strength of the thin-walled hinge portion itself is increased to prevent the lid from being folded in the direction opposite to the closing direction. Can be prevented, and the quality of the resin molded product can be ensured. Further, since the reinforcing ribs are provided only at both ends in the length direction of the thin hinge portion, the lid is not prevented from being bent in the closing direction.

In addition, the present invention secondly is a resin molded product in which a main body that is externally mounted on an automobile part and a lid that is connected via a thin hinge part are integrally molded,
For prevention of folding in the direction opposite to the closing direction of the lid, a stopper rib is integrally projected on the outer surface of the main body or the central portion or / and both sides of the outer surface of the lid in the vicinity of the thin hinge portion, Alternatively, the present invention provides an automotive resin molded product characterized in that a stopper pin is projected and attached.

  With the above configuration, when the lid tries to bend in the direction opposite to the closing direction, the lid or the main body abuts on the outer surface of the main body or the stopper rib or the stopper pin provided on the outer surface of the lid, and is further opposite to the closing direction. It will not bend in the direction. Thereby, since the folding in the direction opposite to the closing direction of the lid is restricted, the thin hinge portion can be prevented from being damaged, and the quality as a resin molded product can be ensured.

Specifically, the resin molded product for automobiles composed of the main body and the lid is composed of a protector that is sheathed on a wire harness,
The main body is attached to the wire harness, and the lid is opened with respect to the main body. After the wire harness is fixed to the vehicle body, the lid is folded in the closing direction with the thin hinge portion as a fulcrum. Is suitably used for the one to which the lock portion provided in the main body is coupled.
As described above, when the lid is kept open until the wire harness is routed to the vehicle body, it is bent in the opposite direction during transportation to the car maker or during assembly work at the car maker, resulting in a thin wall. The occurrence of breakage of the hinge can be prevented.

  As is clear from the above description, according to the first aspect of the present invention, since the reinforcing ribs are provided at both ends in the length direction of the thin hinge portion interposed between the main body and the lid, the strength of the thin hinge portion itself. And the folding in the direction opposite to the closing direction of the lid can be prevented, the thin hinge portion can be prevented from being damaged, and the quality as a resin molded product can be ensured.

  According to the second aspect of the present invention, when the lid is bent in the direction opposite to the closing direction, the lid or the main body comes into contact with the outer surface of the main body or the stopper rib or the stopper pin provided on the outer surface of the lid. Since it does not break in the direction opposite to the closing direction, the folding in the direction opposite to the closing direction of the lid is restricted, the thin hinge portion can be prevented from being damaged, and the quality as a resin molded product can be ensured.

Embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment of the present invention, in which a protector 10 made of an integrally molded resin molded product is bent along the outer surface of an alternator 30 mounted on an engine room and is connected to a trunk line W1. To the branch line W2 to protect the branch part at the time of a vehicle collision.
In order to bolt the bolting terminal 20 connected to the end of the thick wire constituting the trunk line W1 to the alternator 30, it is necessary to maintain the degree of freedom of the bolting terminal 20 during the bolting operation. Therefore, the lid 12 connected to the main body 11 of the protector 10 via the thin hinge 13 is left in an open state until it is bolted, and after being bolted, it is locked and coupled to the main body 11 as a closed position. is there.

  As shown in FIG. 2, the protector 10 includes a main body 11 having a substantially rectangular frame and a lid 12 connected from the upper end of one side wall 11 a of the main body 11 through a thin hinge portion 13. An opening (not shown) for drawing out the branch line W1 is provided in the side wall 11f orthogonal to the side wall 11a of the main body 11.

  As shown in FIGS. 2 and 3, the thin hinge portion 13 that connects the lid 12 to the main body 11 so as to be openable and closable is provided with reinforcing ribs 13 a that are thick on both outer surfaces. Yes. On the other hand, the space between the reinforcing ribs 13a of the thin hinge portion 13 is thin.

  On the side wall 11b opposite to the side wall 11a with the lid 12 connected to the upper end, the side wall 11b is cut out from the upper end to provide a semi-annular wire lead-out portion 11c. In addition, a lock portion 11 d that engages with the lock hole 12 a of the lid 12 protrudes from a required portion on the outer surface of the main body 11.

  As shown in FIG. 1, the trunk wire W1 of the wire harness W / H that is inserted through the main body 11 of the protector 10 and is drawn out from the wire lead-out portion 11c is a thick product in which a bolt terminal 20 having a bolt hole 20a drilled at one end is crimped. It consists of electric wires. Since the thick wire has no degree of freedom when the lid 12 is closed, the alternator 30 cannot be bolted. Therefore, as shown in FIG. 4 (A), the lid 12 is opened until it is bolted. It is necessary to keep it.

The protector is delivered to the car maker with the main body 11 attached to the wire harness W / H in the harness maker and the lid 12 left open.
In the automobile assembly process, the wire harness W / H is abruptly bent along the outer surface of the alternator 30 and the bolt terminal 20 is bolted to the alternator 30.
Thereafter, the lid 12 is rotated in the closing direction with the thin hinge portion 13 as a fulcrum to fix the upper surface opening of the main body 11 in the closed state.

  As described above, since the lid 12 of the protector 10 is open with respect to the main body 11 until the bolting terminal 20 is bolted, the lid 12 is bent in the direction opposite to the closing direction. External force may be applied. At that time, reinforcing ribs 13a are provided at both ends in the length direction of the thin-walled hinge portion 13 to increase the strength of the thin-walled hinge portion 13 itself. Therefore, even if a load is applied in the direction opposite to the closing direction of the lid 13 Further, it is possible to prevent the thin hinge portion 13 from being broken and prevent the thin hinge portion 13 from being damaged, and to ensure the quality as a resin molded product.

  The resin molded product of the present invention is not limited to a protector that is externally mounted on a wire harness, but is a battery cover, a relay box, or the like, in which a case main body and a lid are integrally molded via a thin hinge. Any resin molded product can be used.

  5 to 7 show a second embodiment of the present invention, in which a protector 10 'is formed by locking and coupling a U-shaped first member 10A, a side wall 11a', and a second member 10B comprising a lid 12 '. Is done. The protector 10 ′ after the lock connection has substantially the same shape as the protector 10 of the first embodiment.

Further, as shown in FIGS. 6A and 6B, the protector 10 ′ of the present embodiment has stopper ribs 15 on both sides of the outer surface of the side wall 11a ′ at a position close to the thin hinge portion 13 ′. It protrudes integrally. When a load opposite to the closing direction is applied to the lid 12 ′ and the lid 12 ′ is refracted in the direction opposite to the closing direction, the upper surface of the stopper rib 15 and the outer surface of the lid 12 ′ contact each other as shown in FIG. In contact therewith, the lid 12 ′ no longer bends in the direction opposite to the closing direction.
Thereby, the folding in the direction opposite to the closing direction of the lid 12 ′ is restricted, and the thin hinge portion 13 ′ can be prevented from being damaged.
In addition, since another structure and an effect are the same as that of the said 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 8 shows a first modification of the second embodiment, in which the stopper rib 15 is integrally projected in the vicinity of the lower position of the central portion in the longitudinal direction of the thin hinge portion 13 ′, not on both sides of the side wall 11a ′. doing.
Even in the above configuration, as in the second embodiment, the folding in the direction opposite to the closing direction of the lid 12 'is restricted, and the thin hinge portion 13' can be prevented from being damaged.
In addition, since another structure and an effect are the same as that of the said 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 9 shows a second modification of the second embodiment, in which stopper ribs 15 ′ are integrally projected on both sides of the outer surface of the lid 12 ′ at a position close to the thin hinge portion 13 ′. When a load opposite to the closing direction is applied to the lid 12 ′ and the lid 12 ′ is refracted in the direction opposite to the closing direction, as shown in FIG. 8B, the stopper rib 15 and the outer surface of the side wall 11a ′ are formed. The lid 12 'does not refract in the direction opposite to the closing direction due to contact.
Thereby, the folding in the direction opposite to the closing direction of the lid 12 ′ is restricted, and the thin hinge portion 13 ′ can be prevented from being damaged.
In addition, since another structure and an effect are the same as that of the said 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 10 shows a third embodiment of the present invention, and a protector 10 ″ is provided with a stopper pin 16 in place of the stopper rib of the second embodiment.
The stopper pin 16 is a substantially cylindrical resin molded product. One end of the stopper pin 16 is reduced in diameter to form an insertion portion 16a, and a locking recess 16b is provided around the insertion portion 16a. On the other hand, through holes 11e ″ are formed in both side portions of the outer surface of the side wall 11a ″ at a position close to the thin hinge portion 13 ″, and a stopper pin 16 is inserted and locked in the through hole 11e ″.
Even in the above configuration, as in the second embodiment, the folding of the lid 12 ″ in the direction opposite to the closing direction is restricted, and the thin hinge portion 13 ″ can be prevented from being damaged. Further, since the stopper pin 16 is provided separately from the protector 10 ″, it can be attached only when necessary.
The stopper pin is not limited to a resin molded product, and may be formed of a metal rod.
Moreover, you may attach a stopper pin to the lid | cover side similarly to the said 2nd Embodiment.
In addition, since the other configurations and functions and effects are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

It is a perspective view which shows the use condition of the protector of 1st Embodiment of this invention. It is a perspective view of the protector. It is a principal part expanded sectional view of the II line. (A) is drawing which shows the state which penetrated the wire harness to the protector and opened the lid | cover, (B) is drawing which shows the state which closed the lid | cover. It is a disassembled perspective view of the protector of 2nd Embodiment of this invention. The protector of 2nd Embodiment is shown, (A) is a right view, (B) is a rear view. It is drawing which shows the state by which the load of the reverse direction was applied to the cover of the protector of 2nd Embodiment. It is drawing which shows the 1st modification of 2nd Embodiment. The protector of the 2nd modification of 2nd Embodiment is shown, (A) is a right view, (B) is drawing which shows the state by which the load of the opposite direction to the closing direction was loaded on the lid | cover. It is a principal part expanded sectional view of the protector of 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Protector 10A 1st member 10B 2nd member 11 Main body 12 Cover 13 Thin-walled hinge part 13a Reinforcement rib 15 Stopper rib 16 Stopper pin W / H Wire harness

Claims (3)

It is a resin molded product integrally molded with a main body to be mounted on an automobile part and a lid connected via a thin hinge part,
A resin molded article for an automobile, comprising reinforcing ribs having thick ends at both ends in the length direction of the thin hinge portion for preventing the lid from being folded in a direction opposite to the closing direction. It is a resin molded product integrally molded with a main body to be mounted on an automobile part and a lid connected via a thin hinge part,
For prevention of folding in the direction opposite to the closing direction of the lid, a stopper rib is integrally projected on the outer surface of the main body or the central portion or / and both sides of the outer surface of the lid in the vicinity of the thin hinge portion, Alternatively, a resin molded product for automobiles, characterized in that a stopper pin is projected and attached. The automotive resin molded product comprising the main body and the lid is composed of a protector that is externally mounted on a wire harness.
The main body is attached to the wire harness, and the lid is opened with respect to the main body. After the wire harness is fixed to the vehicle body, the lid is folded in the closing direction with the thin hinge portion as a fulcrum. The resin molded product for automobiles according to claim 1 or 2, wherein a lock portion provided on the main body is coupled.

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