JPH0339220Y2 - - Google Patents
Info
- Publication number
- JPH0339220Y2 JPH0339220Y2 JP1980135020U JP13502080U JPH0339220Y2 JP H0339220 Y2 JPH0339220 Y2 JP H0339220Y2 JP 1980135020 U JP1980135020 U JP 1980135020U JP 13502080 U JP13502080 U JP 13502080U JP H0339220 Y2 JPH0339220 Y2 JP H0339220Y2
- Authority
- JP
- Japan
- Prior art keywords
- recess
- core body
- molded product
- hollow double
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000465 moulding Methods 0.000 claims description 14
- 239000011247 coating layer Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 description 11
- 239000000057 synthetic resin Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は、合成樹脂製の中空二重成形品に関す
る。[Detailed Description of the Invention] The present invention relates to a hollow double molded product made of synthetic resin.
従来、空洞を持つた管体の開口に蓋を被せて、
管体の外側に被覆層を形成する中空二重成形品
は、特開昭48−31516号公報により公知である。 Conventionally, a lid was placed over the opening of a hollow tube body,
A hollow double molded product in which a coating layer is formed on the outside of the tube body is known from Japanese Patent Application Laid-Open No. 48-31516.
前記した従来の中空二重成形品は、合成樹脂製
の管体の一端を蓋により密閉し、他端に逆止弁を
装着することにより、前記した管体内に１Kg／cm2
の空気を封入して、その外側に被覆層を形成させ
るものであるから、被覆層の成形を１Kg／cm2程度
の低い圧力で行う場合は、管体の圧潰が防止され
るが、200Kg／cm2以上の圧力で被覆層の形成を行
う高圧成形に於ては、管体が成形圧により圧潰さ
れて空洞の成形には全く役立たない実施不可能な
考案である。 The above-mentioned conventional hollow double-molded product has one end of the synthetic resin tube sealed with a lid and a check valve attached to the other end, so that 1 kg/cm 2 can be stored inside the tube.
of air is enclosed to form a coating layer on the outside. Therefore, if the coating layer is formed at a low pressure of about 1Kg/ cm2 , crushing of the tube body can be prevented, but if the pressure is as low as 200Kg/cm2, In high-pressure molding in which the coating layer is formed at a pressure of cm 2 or more, the pipe is crushed by the molding pressure, making it an impractical idea that is completely useless for molding the cavity.
これに対し、本願考案は、心体内にリブにより
補強した凹部を形成して、その開口を蓋により閉
塞させることにより、200Kg／cm2以上の高圧成形
に於ても確実に空洞が形成される中空二重成形品
を提供するものである。 In contrast, the present invention forms a recess reinforced with ribs in the core body and closes the opening with a lid, thereby reliably forming a cavity even during high-pressure molding of 200 kg/cm 2 or more. This provides a hollow double molded product.
次に本考案に関する中空二重成形品の実施例を
図面に基いて説明する。 Next, an example of a hollow double molded product according to the present invention will be described based on the drawings.
図面第１図〜第３図に於てＡは、自動車に於け
るシフトレバーノブ等の中空二重成形品で、その
心体１を必要強度が得られる硬質合成樹脂によつ
て、下部の中心にシフトレバー（図面には示して
ない）へ螺合するめねじ２が形成され、上部に外
方へ開口する凹部３が形成される様に成形し、前
記凹部３の開口部の周縁には段部４を形成して、
この段部４に金属又は硬質合成樹脂製の蓋５を嵌
め付け、前記した凹部３の開口を閉塞して、凹部
３を後記する被覆層用の合成樹脂が流入しない空
洞とした後、この心体１を第２図に示す様に金型
６内へセツトし、キヤビテイ７へ発泡性の合成樹
脂を注入して、心体１の外側に被覆層８を形成さ
せ、中空二重成形品を完成させるものであり、前
記した凹部３内には心体１の外側へ作用する高い
成形圧に充分に耐え得る様に十字状等の補強リブ
９を配置してある。 In Figures 1 to 3 of the drawings, A is a hollow double-molded product such as a shift lever knob in an automobile, and its center body 1 is made of hard synthetic resin that provides the necessary strength, and the center of the lower part is A female thread 2 is formed to screw into the shift lever (not shown in the drawings), and a recess 3 opening outward is formed in the upper part, and a step is formed on the periphery of the opening of the recess 3. forming part 4;
A lid 5 made of metal or hard synthetic resin is fitted to this stepped portion 4, and the opening of the recess 3 is closed to make the recess 3 a cavity in which the synthetic resin for the coating layer, which will be described later, does not flow into the core. The core body 1 is set in a mold 6 as shown in FIG. 2, and a foamable synthetic resin is injected into the cavity 7 to form a coating layer 8 on the outside of the core body 1 to form a hollow double molded product. A cross-shaped reinforcing rib 9 is arranged in the recess 3 so as to sufficiently withstand the high molding pressure applied to the outside of the core body 1.
図面第４図は、他の中空二重成形品ａの例を示
すもので、硬質合成樹脂により心体１を円筐状に
成形して、その内部に外側へ開口する凹部３を形
成し、該凹部３内に心体１の外側へ作用する高い
成形圧に充分に耐え得る様に放射状，格子状等の
補強リブ９を配置し、凹部３の開口の周縁には段
部４を形成して、この段部４に蓋５を嵌め、前記
凹部３の開口を塞いで後記する被覆層用の合成樹
脂が流入しない空洞とした後、この心体１の外側
に図面第２図の場合と同様、金型内に於て被覆層
８を形成させて中空二重の成形品を得たものであ
る。 FIG. 4 shows another example of a hollow double molded product a, in which a core body 1 is molded into a circular housing shape using a hard synthetic resin, and a recess 3 that opens outward is formed inside the core body 1. In the recess 3, reinforcing ribs 9 in a radial or lattice shape are arranged so as to sufficiently withstand the high molding pressure acting on the outside of the core 1, and a step 4 is formed around the opening of the recess 3. Then, after fitting the lid 5 to the stepped portion 4 and closing the opening of the recess 3 to create a cavity in which the synthetic resin for the coating layer, which will be described later, does not flow in, the outer side of the core body 1 is covered with a lid 5 as shown in FIG. 2 of the drawing. Similarly, a hollow double molded product was obtained by forming a coating layer 8 in a mold.
尚、前記した実施例は、本考案の一例を示すに
過ぎないもので、この他にも多種多様の製品の製
造が可能であるが、これら製品の一々の例示は省
略するものであり、又、この中空二重成形品の心
体と被覆層との材料は、一般的には前述の通り異
特性のものを使用するが、場合によつては同特性
のものを用いることもある。 The above-mentioned embodiment is merely an example of the present invention, and a wide variety of other products can be manufactured, but illustrations of each of these products will be omitted. As mentioned above, the materials for the core and the coating layer of this hollow double molded product are generally those with different characteristics, but in some cases, materials with the same characteristics may be used.
前記実施例に示す通りの中空二重成形品は、心
体１を硬質合成樹脂を用いて公知の成形手段によ
り成形すると、この心体１内にはリブ９により補
強されて高い成形圧に対してもつぶれない上部へ
開口する凹部３が形成されるから、この凹部３に
於ける開口の周縁に成形時に形成した段部４へ蓋
５を嵌め付けると、前記凹部３は蓋５により開口
を閉塞されて、後記する被覆層用の合成樹脂が流
入しない空洞となる。そこで心体１を図面第２図
に示す様に金型６内へセツトし、金型６内のキヤ
ビテイ７へ発泡性の合成樹脂を200Kg／cm2以上の
高圧力で注入すると、キヤビテイ７内に合成樹脂
が充填され、心体１へ前記した高い成形圧を作用
させるが、内側の凹部３がリブ９により補強され
る心体１は、前述の成形圧に充分耐えて原形を保
持するため、内部に計画通りの空洞が存在して、
使用材料の節約と製品の計量化とが計れる中空二
重品が完成されるものである。 In the hollow double-molded product as shown in the above embodiment, when the core body 1 is molded by a known molding method using a hard synthetic resin, the core body 1 is reinforced with ribs 9 and is resistant to high molding pressure. Since the recess 3 that opens to the top is formed and does not collapse even when the recess 3 is opened, when the lid 5 is fitted to the step 4 formed at the periphery of the opening in the recess 3 during molding, the recess 3 is closed by the lid 5. The cavity is closed and a synthetic resin for a coating layer, which will be described later, does not flow into the cavity. Therefore, the core body 1 is set in the mold 6 as shown in FIG. The core body 1 is filled with synthetic resin and the high molding pressure described above is applied to the core body 1, but the core body 1, whose inner recess 3 is reinforced by the ribs 9, sufficiently withstands the molding pressure described above and retains its original shape. , there is a cavity inside as planned,
This completes a hollow double-sided product that saves on materials used and makes the product weighable.
本考案に関する中空二重成形品は、心体の内部
に空洞が形成されるから、この空洞分の使用材料
の節約と、製品の軽量化が計れる。 Since the hollow double molded product according to the present invention has a cavity formed inside the core body, the material used for this cavity can be saved and the weight of the product can be reduced.
心体の内部に設けた凹部をリブにより補強した
から、200Kg／cm2以上の高圧成形に於いても心体
が原形を保持して、空洞の成形を確実に行せる高
い実用性を有する。等の優れた効果を発揮するも
のである。 Since the recesses provided inside the core are reinforced with ribs, the core retains its original shape even during high-pressure molding of 200 kg/cm 2 or more, making it highly practical for molding cavities reliably. It exhibits excellent effects such as.
図面は本考案に関する中空二重成形品の実施例
を示すもので、第１図は心体とその凹部を閉塞さ
せる蓋の縦断正面図、第２図は心体の外側に被覆
層を成形する状態の縦断正面図、第３図は完成し
た製品を示す縦断正面図、第４図は他の製品を示
す一部を縦断した斜視図である。
Ａ……中空二重成形品、１……心体、３……凹
部、５……蓋、８……被覆層、９……補強リブ。
The drawings show an embodiment of the hollow double-molded product according to the present invention. Figure 1 is a longitudinal sectional front view of the core and the lid that closes the recess, and Figure 2 is a cover layer molded on the outside of the core. FIG. 3 is a longitudinal sectional front view of the completed product, and FIG. 4 is a partially longitudinal sectional perspective view of another product. A...Hollow double molded product, 1... Core body, 3... Recessed portion, 5... Lid, 8... Covering layer, 9... Reinforcing rib.
Claims (1)
成して、その内部に高い成形圧に耐え得るリブを
設け、前記凹部の開口を蓋により閉塞して前記心
体の外側へ被覆層を形成させることを特徴とした
中空二重成形品。 A hollow recess that opens outward is formed inside the core body, a rib capable of withstanding high molding pressure is provided inside the core body, and the opening of the recess is closed with a lid, and a coating layer is applied to the outside of the core body. A hollow double molded product characterized by the formation of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980135020U JPH0339220Y2 (en) | 1980-09-22 | 1980-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980135020U JPH0339220Y2 (en) | 1980-09-22 | 1980-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5757922U JPS5757922U (en) | 1982-04-05 |
| JPH0339220Y2 true JPH0339220Y2 (en) | 1991-08-19 |
Family
ID=29495206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980135020U Expired JPH0339220Y2 (en) | 1980-09-22 | 1980-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339220Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831516A (en) * | 1971-08-26 | 1973-04-25 |
-
1980
- 1980-09-22 JP JP1980135020U patent/JPH0339220Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831516A (en) * | 1971-08-26 | 1973-04-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5757922U (en) | 1982-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4226464A (en) | Arm rest shaped to include a through grip or hand grip with hollow molded body | |
| GB1065384A (en) | Improvements in or relating to storage tanks | |
| JPH0339220Y2 (en) | ||
| JP3049111B2 (en) | Container manufacturing method | |
| JPS5813414B2 (en) | Manufacturing method for case handles | |
| JPH02245307A (en) | Production of packing material | |
| US2018941A (en) | Vault | |
| JPS6220538Y2 (en) | ||
| JPS62130071U (en) | ||
| JPS582768Y2 (en) | container | |
| JPH0344855Y2 (en) | ||
| JPS6118452B2 (en) | ||
| EP0439033A2 (en) | Method of manufacturing steering wheel | |
| JPS58185535U (en) | resin tank | |
| JPS58193278A (en) | Heat-insulating shape | |
| JPS6322476Y2 (en) | ||
| JPH0343434U (en) | ||
| JPS633792Y2 (en) | ||
| JPS601056Y2 (en) | container | |
| JPS61117211U (en) | ||
| JPS63202657U (en) | ||
| JPH01108034A (en) | Manufacture of hollow synthetic resin product | |
| JPS6236475Y2 (en) | ||
| JPH02129038U (en) | ||
| JPH0311187U (en) |