JP2003220988A - Molding and its molding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molding and its molding method that can cramp a long body of a molding (molding body) without increasing the number of part items. <P>SOLUTION: A front member 3 of a rear fender 1 molded from a synthetic resin is formed integrally, on a rear side of a member body 3A, a cramp portion 3B for cramping wiring S of a long-body electrical component through a thin- walled hinge 3C. The portion 3B is bent at the hinge 3C so that a bundle of the wiring S is cramped by nipping and holding between the portion 3B and the rear fender 1 (rear portion of the front member 3). <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded product molded from synthetic resin and a molding method thereof.

[0002]

2. Description of the Related Art Conventionally, in a motorcycle, when the wiring (cable) of an electrical component is mounted and fixed to a molded product of synthetic resin (for example, a rear fender), a component different from the molded product is used. It is designed to be fixed. That is, for example, as shown in FIG. 10A, the molded product 101 is provided with a locking hole 101a, and the clip 103 in which the cable 102 (wiring) is clamped by the clamp portion 103a is engaged with the locking hole 101a. The portion 103b is inserted and the cable 102 is attached to the molded product 101. In addition, FIG.
As shown in (b), the cable 102 is clamped to the clamp 111
Attachment part 111b of clip 111 clamped at a
May be screwed to the molded product 101 using a screw 112 or a nut 113.

As a prior art related to this, there is known one in which a rear fender made of a synthetic resin and a cover are connected by a thin portion (for example, Japanese Utility Model Publication No. 58-39270 and Japanese Utility Model Publication No. 64-39187). (See the official gazette).

[0004]

However, as described above, if the components are clamped and attached as separate components, the number of components is increased by the number of components used for clamping the elongated body, resulting in a high component cost. As a result, assembly workability is low.

Similarly, a molded article molded of synthetic resin,
The same problem occurs when attaching and fixing a long body such as wiring or piping.

An object of the present invention is to provide a molded product and a molding method thereof capable of clamping a long body to a molded product (molded product body) without increasing the number of parts.

[0007]

According to a first aspect of the present invention, there is provided a molded product molded of synthetic resin, wherein a long body such as wiring or piping is clamped in the molded product body via a thin hinge. The clamp portion for doing so is integrally molded, and the clamp portion is rotatable about the hinge axis of the thin hinge. Here, the clamp portion is not only provided through a thin hinge outside the outer edge portion of the molded article body, but a part of the molded article body is notched,
It also includes a case where the cutout portion is provided through a thin hinge. In addition, the long body includes all that have moderate lengths such as wiring, piping, and cords.

With this structure, for example, as shown in FIGS. 1 and 2, the clamp portion 3 for clamping the elongated body is provided.
Since B is integrally molded with the molded product body (member body 3A) via the thin hinge 3C, the thin hinge 3
By rotating the clamp portion 3B around the hinge axis with the hinge axis of C as the center of rotation, the clamp portion 3B is rotated between the molded article body (member body 3A) and the clamp portion 3B (for example, the member body 3A which is the molded article body). Wiring of electrical components mounted on S)
Since they can be bundled and clamped, assembly workability is good.

Since the clamp portion is integrally molded with the molded product body via the thin hinge, the number of parts does not increase. Further, since the clamp portion is always integrated with the molded product body, it does not fall off during the clamping work.

According to a second aspect of the present invention, the clamp portion includes a clamp body that wraps the elongated body, and an attachment portion that is provided at a portion opposite to the thin hinge and that is locked or fixed to the molded article body. Can be provided.

With this structure, since one side of the clamp portion is integrally connected to the molded product body via the thin hinge, the clamp portion is rotated about the hinge shaft of the thin hinge to rotate the clamp portion. The attachment part of the part can be almost in contact with the molded body. Then, in this state, by locking or fixing the mounting portion to the molded product body, the elongated body can be clamped between the clamp part (clamp body) and the molded product body.

As described in claim 3, it is preferable that the thin hinge has a long hole or a plurality of holes formed in the axial direction of the hinge shaft. Here, the number of the long holes may be one or plural, and may be plural round holes or square holes.

With this structure, the thin-walled hinge is formed with the long hole or the plurality of holes in the axial direction of the hinge shaft of the thin-walled hinge. The operating force when opening and closing can be reduced.

According to a fourth aspect of the present invention, the molded article body is the front member of a rear fender which is located above a rear wheel of a motorcycle and below a rear seat and is divided into a front member and a rear member. Electrical components are provided, and the elongated body can be a wiring of the electrical components of the motorcycle.

In this way, in a rear fender of a motorcycle, which has many elongated bodies (wiring for electrical components) that need to be clamped, the elongated bodies are bundled and clamped without increasing the number of parts. You can

According to a fifth aspect of the present invention, there is provided a method for molding a molded product, wherein a molded recess is formed by using an upper mold and a lower mold, and the molded product is molded with a synthetic resin by the molded recess. A clamp recess is continuously formed at a specific location of the recess via a hinge recess, and the depth directions of the hinge recess and the clamp recess are aligned with the pull-out direction of the upper mold and the lower mold, and the molded product is formed. The clamp portion formed in the clamp recess is integrally formed at a specific portion of the main body via a thin hinge formed in the hinge recess.

According to this structure, since the clamp recess and the hinge recess are continuously formed at a specific portion of the molding recess of the mold, the clamp recess and the hinge recess are used to form the molded product. Simultaneously with the molding of the molded product body, the clamp part is integrally molded through the thin hinge.
The drawing directions T1 and T2 of the upper mold and the lower mold are, as shown in FIG. 1, the depth direction of the hinge concave portion and the clamp concave portion (the depth direction of the concave groove 3D for forming the thin hinge 3C). Since it almost coincides with, the die cutting can be performed without difficulty.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 is a perspective view showing a rear fender of a motorcycle including a front member which is a molded product according to the present invention, and FIG. 4 is a portion of the rear fender (front member) according to the present invention in which a clamp portion is provided. 5 is a side view of the same, FIG. 6 is a rear view of the same, and FIG. 7 is an explanatory view of a thin hinge according to the present invention.

In FIG. 3, reference numeral 1 denotes a rear fender of a motorcycle, which is constructed by connecting a rear member 2 and a front member 3 to each other in the front and rear, and an electric component (eg, igniter, headlamp relay, fan relay) in the front member 2. , Signal lamp relay, battery, etc.). The rear fender 1 is attached to the lower portion of the rear frame 4 using a plurality of bolts (not shown). The rear member 2 and the front member 3 of the rear fender 1 are molded products molded of synthetic resin (for example, polypropylene PP).

The front member 3 of this rear fender 1
Is a member main body 3A, as shown in detail in FIGS.
On the rear side of the (molded body), the wiring S of the electrical component that is a long body
A clamp portion 3B having a concave cross-section for clamping is formed integrally with a thin hinge 3C (so-called PP hinge) having a small thickness. The clamp portion 3B is rotated (folded) around the hinge axis of the thin-walled hinge 3C as a rotation center, so that the bundle of the wiring S is rear fender 1.
It can be clamped by sandwiching it with (the rear portion of the front member 3) (see FIG. 8).

As shown in the enlarged view of FIG. 7, the thin hinge 3C is a boundary portion between the member main body 3A of the front member 3 (rear fender 1) and the clamp portion 3B.
A groove 3D is provided on the side opposite to the side where the wiring S (long body) is clamped.
Is formed by forming. Then, in the state where the clamp portion 3B wraps around the wiring S and clamps it, the concave groove 3D is located outside.

Further, in the central portion of the middle portion of the thin hinge 3C to be bent, a long hole 3 which is long in the axial direction of the hinge shaft is provided so that the thin hinge 3C can be easily bent.
Ca is formed.

The clamp portion 3B is a flat plate-shaped mounting portion 3
Ba and left and right side plate portions 3Bb extending from the left and right edge portions of the mounting portion 3Ba in a direction orthogonal to the mounting portion 3Ba.
And an intermediate plate portion 3Bc extending from the edge of the side plate portion 3Bb to the side opposite to the attachment portion 3Ba in parallel with the attachment portion 3Ba.
And from the edge of the intermediate plate portion 3Bc, the mounting portion 3Ba
And a pressing plate portion 3Bd extending in parallel with the pressing plate portion 3Bd.
It has Bd and the connecting plate part 3Be which connects the thin hinge 3C. Since the mounting portion 3Ba is mounted and fixed to the front member 3 (flat plate portion) with the bolt 5 (see FIG. 3), the bolt 5 is inserted into the mounting portion 3Ba for mounting and fixing. The mounting hole 3Bf is opened.

The intermediate plate portion 3Bc, the pressing plate portion 3Bd, and the connecting plate portion 3Be constitute a clamp body that wraps around the wiring S (long body) to be clamped. By the clamp portion 3B having the clamp main body, the wiring S of the electric component of the motorcycle is clamped in such a manner as to be wrapped with the flat plate portion on the rear fender 1 side.

Specifically, as shown in FIG. 8, an igniter line S1, a headlamp relay line S2, a fan relay line S3, and a signal lamp relay arranged near the rear side of the rear fender 1 (front member 3). In a state where the wires S4 are bundled, these wires S1 to S4 are connected to the clamp body 3B.
It is clamped together by a. In this way, the wiring S (S1) of the electrical component arranged near the rear portion of the rear fender 1
~ S4) are bundled and clamped together.

Further, in order to mold the front member 3 of the rear fender 1, it is possible to mold it with a synthetic resin by using an unillustrated upper mold and lower mold as in the conventional case.
However, a depth is formed at a specific portion (a portion where the clamp portion 3B is to be provided) of a molding concave portion (corresponding to the member main body 3A) of a mold constituted by an upper mold and a lower mold for molding the front member 3. The clamp recess (corresponding to the clamp portion 3B) is continuously formed through the shallow hinge recess (corresponding to the thin hinge 3C).

With this configuration, the clamp recess and the hinge recess are continuously formed at a specific portion of the molding recess (corresponding to the member body 3A) formed by using the upper mold and the lower mold. Therefore, the thin hinge 3 is attached to a specific portion of the member main body 3A of the front member 3 (rear fender 1).
It is possible to integrally mold the clamp portion 3B via C.

As described above, the resin molding using the upper mold and the lower mold is the same as the conventional one, but only the front member (member body 3A) is conventionally molded. Then, when the member body 3A is molded, the clamp portion 3B and the thin hinge 3C are simultaneously molded. That is, the member main body 3A, the clamp portion 3B, and the thin-walled hinge 3C are molded together, and the whole of them is
One molded product. Further, at the time of releasing from the mold, the drawing directions T1 and T2 (see FIG. 1) between the upper mold and the lower mold substantially coincide with the depth direction of the hinge recess and the clamp recess forming the thin hinge 3C. There is almost no difference, and die cutting is done without difficulty.

In addition to the above, the molded product according to the present invention (molded product having a long clamp portion) can be configured as follows. (1) The mounting portion 3Ba of the clamp portion is shaped to be fixed by the bolt 5, but not limited to this, a locked portion is provided on the rear fender 1 (front member 3) side so that it can be engaged and disengaged. It can also be a mounting portion having a shape to be locked. For example, as shown in FIG. 9 (a), a clamp portion 11B integrally formed with a molded product body 11A via a thin hinge 11C.
While the insertion locking portion 11Bb is provided on the mounting portion 11Ba of
If an engaging hole 11Aa is provided on the molded product body 11A side so that the insertion locking portion 11Bb can be engaged and disengaged, the molded product body can be brought into engagement with the insertion locking portion 11Bb and the engagement hole 11Aa. The clamp portion 11B (mounting portion 11Ba) can be locked to 11A. As shown in FIG. 9B, the clamp portion 12B integrally formed with the molded product body 12A via the thin hinge 12C.
If the engaging portion 12Bb is provided on the mounting portion 12Ba of the above, and the engaging portion 12Aa on which the engaging portion 12Bb is detachably engaged is provided on the molded product body 12A side, the engaging portion 12Bb and the engaging portion 12Bb It is also possible to lock the clamp portion 12B (mounting portion 12Ba) to the molded product body 12A in an engagement relationship with 12Aa. As shown in FIG. 9 (c), even if the screw 13 is used for fixing, a long body (not shown) is coupled to the base 14 together with the molded product body 15 </ b> A via the thin hinge 15 </ b> C. A fixing structure in which the mounting portion 15Ba of the clamp portion 15B is fastened together with the screw 13 may be used. As shown in FIG. 9 (d), the engaging portion 16Aa on the molded product body 16A side is formed into an uneven shape, while the engaging portion 16Bb on the mounting portion 16Ba side of the clamp portion 16B is engageable and disengageable. It is also possible to have an engaging shape and engage the clamp part 16B (mounting part 16Ba) with the molded product main body 16A in an engagement relationship between the engaging part 16Aa and the engaging part 16Bb. In this case, the clamp size can be changed according to the number and size of the elongated bodies to be clamped. 1
6C is a thin hinge. As shown in FIG. 9 (e), the locking portion 17 is provided on the locking portion 17Aa on the molded product body 17A side through the thin hinge 17Ab.
Ac is integrally molded, and the lock portion 17Ac is detachably engaged with the engagement portion 17Bb of the mounting portion 17Ba of the clamp portion 17B so that the clamp portion 17B is locked to the molded product body 17A. It is also possible to do so. 17
C is a thin hinge. (2) The clamp parts are designed such that their mounting parts are locked or fixed to the molded product body, but such mounting parts (mounting that is locked or fixed to the molded product body are mounted. Part) does not necessarily have to be provided for the clamp part, and for example, an engaging part that engages with the tip parts of the two clamp parts integrally molded with the molded product main body via a thin hinge so as to be detachable from each other, By engaging these engaging portions, the bundle of long bodies can be clamped by the two clamping portions. (3) A long hole 3Ca that is long in the axial direction of the hinge shaft is formed in the central portion of the middle portion of the thin hinge 3C that is bent, but instead of the long hole, a plurality of round holes or square holes are formed. May be provided. Further, such a long hole, a round hole, or a square hole is not always necessary, and may be omitted when the thin hinge has a high flexibility. (4) In the above-described embodiment, the clamp portion clamps the wiring of the electrical component, but not limited to such wiring, it may be a long body such as a pipe for air control or hydraulic control. If it is a clamp, it can be applied to all. Furthermore, it is also possible to clamp small articles such as couplers and fuses. Further, the main body of the molded product is not limited to the rear fender (front member 3) of the motorcycle, but can be applied to other molded products (molded products made of synthetic resin) for which it is necessary to clamp the elongated body.

[0031]

The present invention is implemented as described above and has the following effects.

According to the first aspect of the present invention, since the clamp portion is integrally formed with the main body of the molded article via the thin hinge,
The number of parts does not increase. Also, by rotating the clamp part around the hinge axis of the thin-walled hinge with respect to the molded product body, it is possible to clamp the elongated body used for the molded product between the molded product body and the clamp part. Excellent workability. Furthermore, since the clamp portion is always integrated with the molded product body, it does not fall off during the clamping work.

According to the second aspect of the present invention, if one side of the clamp portion is integrally connected to the molded product body through the thin hinge, the clamp portion is rotated around the hinge axis of the thin hinge. , The mounting part is in contact with the molded product body, and in that state, the mounting part is locked or fixed to the molded product body to form a long body between the clamp part (clamp body) and the molded product body. Can be clamped.

According to the third aspect of the present invention, if the thin-walled hinge is formed with the elongated hole or the plurality of holes in the axial direction of the hinge axis thereof, when the elongated hole or the plurality of holes are not formed. In comparison, the operation force when opening and closing via the thin hinge can be reduced.

According to a fourth aspect of the present invention, the molded article body is a rear fender (front member) of a motorcycle, and the elongated body is a wiring of electrical components of the motorcycle. By doing so, in a rear fender of a motorcycle having many long bodies (wiring of electrical components) that need to be clamped, the long bodies can be bundled and clamped without increasing the number of parts.

According to a fifth aspect of the present invention, a clamp recess is continuously formed at a specific location of a molding recess formed by using an upper die and a lower die, and the hinge recess and the clamp recess are formed. Since the depth direction of is almost aligned with the drawing direction of the upper mold and the lower mold, when molding the molded product body, at the same time as molding the molded product body, a thin wall is formed at a specific portion of the molded product body. The clamp part can be molded at the same time via the hinge, and die cutting can be done without difficulty.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a clamp portion of a molded product according to the present invention.

FIG. 2 is an explanatory diagram of a clamped state by the clamp section.

FIG. 3 is a perspective view showing a rear fender of a motorcycle including a front member which is a molded product according to the present invention.

FIG. 4 is a plan view of an essential part of a rear fender (front member) according to the present invention, in which a clamp portion is provided.

FIG. 5 is a side view of the same.

FIG. 6 is a rear view of the same.

FIG. 7 is an explanatory view of a thin hinge according to the present invention.

FIG. 8 is a schematic plan view showing a state in which wiring is clamped by a clamp portion.

9A to 9E are explanatory views of modified examples.

10A and 10B are explanatory views showing a schematic configuration of a conventional example, respectively.

[Explanation of symbols]

1 Rear Fender 3 Front Member (Molded Product) 3A Member Body (Molded Product Body) 3B Clamping Part 3Ba Mounting Part 3C Thin Hinge 3Ca Long Hole 3D Grooves 11A, 12A, 15A, 16A, 17A Molded Product Main Body 11B, 12B, 15B , 16B, 17B Clamp part 11Ba, 12Ba, 15Ba, 16Ba, 17Ba
Mounting parts 11C, 12C, 15C, 16C, 17C Thin hinge S Wiring (long body)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tomoyuki Takahashi             1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries             Akashi Factory Co., Ltd. F-term (reference) 4F202 AG21 AG30 AH17 AH81 CA11                       CB01 CK13

Claims (5)

[Claims] 1. A molded product molded of synthetic resin, wherein a molded product body is integrally molded with a clamp portion for clamping a long body such as wiring or piping via a thin hinge. A molded product, wherein the clamp portion is rotatable about a hinge axis of the thin hinge. 2. The clamp part has a clamp body that wraps the elongated body, and an attachment part that is provided at a portion opposite to the thin hinge and that is locked or fixed to the molded product body. The molded product according to claim 1. 3. The molded product according to claim 1, wherein the thin hinge has a long hole or a plurality of holes formed in the axial direction of the hinge shaft. 4. The molded article body is the front member of a rear fender, which is located above a rear wheel of a motorcycle and below a rear seat and is divided into a front member and a rear member. The molded article according to any one of claims 1 to 3, wherein the elongated body is a wiring of an electrical component of the motorcycle. 5. A method for molding a molded product, comprising forming a molded recess using an upper mold and a lower mold, and molding the molded product with a synthetic resin by the molded recess. , The clamp recess is continuously formed through the hinge recess, and the depth directions of the hinge recess and the clamp recess are aligned with the pulling-out direction of the upper mold and the lower mold, and at a specific portion of the molded product body. A method for molding a molded article, characterized in that the clamp portion molded in the clamp recess is integrally molded via a thin hinge molded in the hinge recess.