JP2560946B2 - Insert parts for blow molding - Google Patents
Insert parts for blow moldingInfo
- Publication number
- JP2560946B2 JP2560946B2 JP4081128A JP8112892A JP2560946B2 JP 2560946 B2 JP2560946 B2 JP 2560946B2 JP 4081128 A JP4081128 A JP 4081128A JP 8112892 A JP8112892 A JP 8112892A JP 2560946 B2 JP2560946 B2 JP 2560946B2
- Authority
- JP
- Japan
- Prior art keywords
- blow
- air cleaner
- cleaner hose
- molded product
- blow molding
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
- B29D23/003—Pipe joints, e.g. straight joints
- B29D23/008—T-joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
- B29C66/12445—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue having the tongue on the side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
- B29C66/12449—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being asymmetric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
- B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
- B29C66/53241—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles
- B29C66/53242—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles said single elements being spouts, e.g. joining spouts to tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0009—Cutting out
- B29C2793/0018—Cutting out for making a hole
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
- B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は車両用エアクリーナホー
ス等のブロー成形品に用いられるインサート部材に係
り、より詳しくは前記ブロー成形品にレゾネータ、サイ
ドブランチ等の付属品を連結するためにブロー成形品側
に設けられるインサート部材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert member used in blow-molded products such as air cleaner hoses for vehicles, and more particularly to blow-molded products for connecting accessories such as resonators and side branches to the blow-molded products. The present invention relates to an insert member provided on the product side.
【０００２】[0002]
【従来の技術】従来、例えば車両用内燃機関の吸気系に
用いられるエアクリーナホースでは、吸気にともない発
生する騒音が問題となる。そこで、エアクリーナホース
にサイドブランチやレゾネータ等の付属品を取り付け
て、前記騒音を低減させることが行われている。2. Description of the Related Art Conventionally, in an air cleaner hose used for an intake system of an internal combustion engine for a vehicle, noise generated by intake is a problem. Therefore, accessories such as a side branch and a resonator are attached to the air cleaner hose to reduce the noise.
【０００３】ブロー成形によって形成されるエアクリー
ナホースは、そのブロー成形時において、付属品取付け
のための接続部とエアクリーナホースとを一度に形成す
ることは困難である。そのため、一般にはエアクリーナ
ホースのブロー成形に際し、図７で示すような連結ピー
ス２２が用いられている。In an air cleaner hose formed by blow molding, it is difficult to simultaneously form a connecting portion for attaching accessories and an air cleaner hose at the time of blow molding. For this reason, a connecting piece 22 as shown in FIG. 7 is generally used when blow molding an air cleaner hose.
【０００４】連結ピース２２は、略円筒状をなす連結部
２２ａと、その連結部２２ａの下端を閉塞する閉塞部２
２ｂとからなる。閉塞部２２ｂは、ブロー成形時にはエ
アクリーナホース２１の一部に接合される。閉塞部２２
ｂは、ブロー成形後において、前記エアクリーナホース
２１の接合部分とともにホールソー等の穴あけ工具によ
って切除される。すなわち、穴あけ工具が連結ピース２
２の上端開口から挿入される。そして、穴あけ工具の歯
等が閉塞部２２ｂに押し当てられ、その切断作用により
同閉塞部２２ｂ等が切断される。この閉塞部２２ｂの切
断により、前記付属品の連結時にエアクリーナホース２
１と付属品とが連通する。なお、図７中の２３は、ブロ
ー成形時におけるエア抜孔である。The connecting piece 22 has a substantially cylindrical connecting portion 22a and a closing portion 2 for closing the lower end of the connecting portion 22a.
2b and. The closing portion 22b is joined to a part of the air cleaner hose 21 during blow molding. Blocking part 22
After the blow molding, b is cut off together with the joint portion of the air cleaner hose 21 by a drilling tool such as a hole saw. That is, the drilling tool is the connecting piece 2
2 is inserted from the upper end opening. Then, the teeth of the drilling tool are pressed against the closing portion 22b, and the cutting action cuts the closing portion 22b and the like. By cutting the closing portion 22b, the air cleaner hose 2 can be connected when the accessories are connected.
1 communicates with accessories. In addition, 23 in FIG. 7 is an air vent hole at the time of blow molding.
【０００５】[0005]
【発明が解決しようとする課題】ところが、前記従来技
術では連結ピース２２の閉塞部２２ｂに対する穴あけ工
具の位置決めが難しかった。このため、穴あけ工具によ
って連結ピース２２の連結部内壁を誤って傷付けてしま
ったり、切断位置が製品毎に異なってしまう等の不具合
があった。また、このような不具合を回避しようとする
と、位置決めを慎重に行わなければならず、その結果、
位置決めに手間がかかり作業効率を低下させてしまう。However, in the above-mentioned prior art, it was difficult to position the drilling tool with respect to the closing portion 22b of the connecting piece 22. Therefore, there are problems that the inner wall of the connecting portion of the connecting piece 22 is accidentally scratched by the drilling tool, and the cutting position is different for each product. Also, trying to avoid such problems requires careful positioning, which results in
It takes a lot of time to position and reduces work efficiency.
【０００６】本発明は上記問題点を解決するためになさ
れたものであって、その目的は穴あけ工具の位置決めを
容易かつ正確に行うことができ、インサート部材に誤っ
て傷を付けたり、穴あけ工具による切断位置が製品毎に
異なるのを未然に防止でき、さらには、穴あけ作業の作
業効率を向上させることができるブロー成形品用インサ
ート部材を提供することにある。The present invention has been made to solve the above-mentioned problems, and the purpose thereof is to easily and accurately position a drilling tool, to accidentally scratch the insert member, or to drill the drilling tool. Another object of the present invention is to provide an insert member for a blow-molded product, which can prevent the cutting position due to the product from being different for each product, and can improve the work efficiency of the drilling work.
【０００７】[0007]
【課題を解決するための手段】本発明は上記問題点を解
決するため、前記連結部の一端を閉塞し、かつブロー成
形品の成形時には同ブロー成形品の一部に接合し、ブロ
ー成形品の成形後には穴あけ工具により前記ブロー成形
品の接合部分とともに切断又は打ち抜かれる閉塞部とを
備え、前記付属品の連結に際し、ブロー成形品及び付属
品を連通させるようにしたブロー成形品用インサート部
材において、前記閉塞部には、前記連結部の他端開口か
ら挿入される穴あけ工具を位置決めするためのガイド溝
を形成したことをその要旨とする。In order to solve the above-mentioned problems, the present invention closes one end of the connecting portion and joins a part of the blow-molded product at the time of molding of the blow-molded product to obtain a blow-molded product. After the molding, the blow molding product insert member is provided with a closing portion that is cut or punched together with the joining portion of the blow molding product by a drilling tool, and connects the accessories when the accessories are connected. In the above, the gist is that a guide groove for positioning a drilling tool inserted from the other end opening of the connecting portion is formed in the closing portion.
【０００８】[0008]
【作用】従って、本発明によれば、インサート部材の閉
塞部は、ブロー成形品の成形時において同ブロー成形品
の一部に接合する。Therefore, according to the present invention, the closed portion of the insert member is joined to a part of the blow-molded product during molding of the blow-molded product.
【０００９】また、前記閉塞部はブロー成形品の成形後
において、前記ブロー成形品の接合部分とともに穴あけ
工具により切断又は打ち抜かれる。すなわち、穴あけ工
具がインサート部材の連結部の他端開口から挿入された
後、閉塞部に押し当てられる。この際、閉塞部にはガイ
ド溝が形成されている。このため、前記穴あけ工具がこ
のガイド溝に合わせられると、その穴あけ工具はインサ
ート部材の最適な位置に配置されたことになる。そし
て、前記のように位置決めされた穴あけ工具により閉塞
部等が切断又は打ち抜かれる。Further, the closed portion is cut or punched together with the joint portion of the blow-molded product by a drilling tool after the blow-molded product is molded. That is, after the drilling tool is inserted from the other end opening of the connecting portion of the insert member, it is pressed against the closing portion. At this time, a guide groove is formed in the closed portion. Therefore, when the drilling tool is aligned with the guide groove, the drilling tool is located at the optimum position of the insert member. Then, the closed portion or the like is cut or punched by the drilling tool positioned as described above.
【００１０】前記閉塞部及びブロー成形品の接合部分が
切断又は打ち抜かれた後、インサート部材の連結部に付
属品が連結されると、ブロー成形品及び付属品が相互に
連通する。If the accessory is connected to the connecting portion of the insert member after the joint portion of the closed portion and the blow-molded article is cut or punched out, the blow-molded article and the accessory communicate with each other.
【００１１】[0011]
【実施例】以下、本発明を具体化した一実施例を図１〜
図６に従って説明する。図２は、ブロー成形品としての
エアクリーナホース１と、付属品としてのサイドブラン
チ２とを示している。エアクリーナホース１は車両用内
燃機関における吸気通路の一部を構成するものである。
エアクリーナホース１は、ブロー成形によって略円管状
に形成されている。ブロー成形は、押出機から成形材料
をパイプ状（パリソン）に押し出し、これを一対の金型
で挟み、そのパリソン内にエア等を吹き込んで中空品
（この場合、エアクリーナホース１）を成形する方法で
ある。また、サイドブランチ２は、エアクリーナホース
１内において発生する騒音を低減させるためのものであ
る。サイドブランチ２は管状をなし、エアクリーナホー
ス１に対し連通状態で取付けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. FIG. 2 shows an air cleaner hose 1 as a blow molded product and a side branch 2 as an accessory. The air cleaner hose 1 constitutes a part of an intake passage in an internal combustion engine for a vehicle.
The air cleaner hose 1 is formed into a substantially circular tube shape by blow molding. Blow molding is a method in which a molding material is extruded into a pipe shape (parison) from an extruder, sandwiched between a pair of molds, and air or the like is blown into the parison to mold a hollow product (in this case, an air cleaner hose 1). Is. The side branch 2 is for reducing noise generated in the air cleaner hose 1. The side branch 2 has a tubular shape and is attached to the air cleaner hose 1 in a communicating state.
【００１２】前記サイドブランチ２の取付けに際して
は、図１，４，５で示すようなインサート部材としての
連結ピース３が用いられている。連結ピース３は、略円
筒状をなす連結部３ａと、その連結部３ａの上端を閉塞
する閉塞部３ｂとから構成されている。そして、連結ピ
ース３の上端は開口されている。閉塞部３ｂは、エアク
リーナホース１のブロー成形時において、連結部３ａの
軸心がエアクリーナホース１に対して垂直となるよう
に、そのエアクリーナホース１の一部に接合される（図
１参照）。また閉塞部３ｂは、前記ブロー成形後におい
て、前記エアクリーナホース１の接合部分とともに穴あ
け工具としてのホールソー８によって切断及び除去され
る（図５参照）。When mounting the side branch 2, a connecting piece 3 as an insert member as shown in FIGS. 1, 4 and 5 is used. The connecting piece 3 is composed of a substantially cylindrical connecting portion 3a and a closing portion 3b that closes the upper end of the connecting portion 3a. The upper end of the connecting piece 3 is open. The closing portion 3b is joined to a part of the air cleaner hose 1 so that the axis of the connecting portion 3a is perpendicular to the air cleaner hose 1 during blow molding of the air cleaner hose 1 (see FIG. 1). After the blow molding, the closed portion 3b is cut and removed together with the joint portion of the air cleaner hose 1 by a hole saw 8 as a drilling tool (see FIG. 5).
【００１３】図１で示すように、前記閉塞部３ｂの中心
部には透孔７が開けられている。透孔７は、エアクリー
ナホース１のブロー成形時に金型内のエアを逃がすため
のものであり、さらにはホールソー８における回転中心
軸Ｌを位置決めするためのものである。特に本実施例で
は、透孔７の上半部が上側ほど拡径するテーパ状に形成
されている。この形状により、ホールソー８の回転中心
軸の軸心を、透孔７の中心に確実に一致させることが可
能である。As shown in FIG. 1, a through hole 7 is formed in the central portion of the closed portion 3b. The through hole 7 is for releasing the air in the mold when the air cleaner hose 1 is blow-molded, and for positioning the rotation center axis L of the hole saw 8. In particular, in this embodiment, the upper half of the through hole 7 is formed in a tapered shape whose diameter increases toward the upper side. With this shape, the axis of the rotation center axis of the hole saw 8 can be surely aligned with the center of the through hole 7.
【００１４】さらに、閉塞部３ｂの上面にはガイド溝９
が形成されている。このガイド溝９は、連結ピース３の
上端開口から挿入されたホールソー８の鋸歯８ａを位置
決めするためのものである。ガイド溝９は断面略Ｖ字状
をなし、前記鋸歯８ａの形状と対応して円環状に形成さ
れている。そして、ガイド溝９の中心は前記透孔７の中
心と一致している。Further, a guide groove 9 is provided on the upper surface of the closed portion 3b.
Are formed. The guide groove 9 is for positioning the saw teeth 8a of the hole saw 8 inserted from the upper end opening of the connecting piece 3. The guide groove 9 has a substantially V-shaped cross section, and is formed in an annular shape corresponding to the shape of the saw teeth 8a. The center of the guide groove 9 coincides with the center of the through hole 7.
【００１５】ところで、前記のようにブロー成形後にお
いて閉塞部３ｂの切断された連結ピース３にはサイドブ
ランチ２が取付けられる。その取付け構造を図３に示
す。同図において、連結ピース３の連結部３ａには金属
製の円筒リング４が嵌入されており、同連結部３ａを補
強している。一方、サイドブランチ２の上端部の内外周
面はシールラバー５によって被覆されている。サイドブ
ランチ２の上端部はシールラバー５を介して前記連結部
３ａに外嵌されている。そして、金属製の押圧リング６
がシールラバー５の外側から巻装されることによって、
サイドブランチ２が連結ピース３に対し強固に締付固定
されている。By the way, as described above, the side branch 2 is attached to the connection piece 3 in which the closing portion 3b is cut after the blow molding. The mounting structure is shown in FIG. In the figure, a metal cylindrical ring 4 is fitted into the connecting portion 3a of the connecting piece 3 to reinforce the connecting portion 3a. On the other hand, the inner and outer peripheral surfaces of the upper ends of the side branches 2 are covered with a seal rubber 5. The upper end of the side branch 2 is externally fitted to the connecting portion 3a via a seal rubber 5. And the metal pressing ring 6
Is wound from the outside of the seal rubber 5,
The side branch 2 is firmly tightened and fixed to the connecting piece 3.
【００１６】次に、前記のように構成された本実施例の
作用及び効果について説明する。連結ピース３の閉塞部
３ｂは、図１で示すようにブロー成形によりエアクリー
ナホース１を形成する際に、同エアクリーナホース１の
外周部に接合する。すなわち、ブロー成形時において、
溶融樹脂（パリソン）が連結ピース３の連結部３ａ内へ
流入するのを阻止する。また、このブロー成形時には、
パリソンと閉塞部３ｂとの間にエアが溜まるが、このエ
アは透孔７を介して連結部３ａ側へ抜け出る。なお、こ
のときには、エアクリーナホース１の内外は連通してい
ない。Next, the operation and effect of the embodiment constructed as described above will be described. The closed portion 3b of the connecting piece 3 is joined to the outer peripheral portion of the air cleaner hose 1 when the air cleaner hose 1 is formed by blow molding as shown in FIG. That is, during blow molding,
The molten resin (parison) is prevented from flowing into the connecting portion 3a of the connecting piece 3. Also, during this blow molding,
Air collects between the parison and the closed portion 3b, but this air escapes to the connecting portion 3a side through the through hole 7. At this time, the inside and outside of the air cleaner hose 1 are not in communication.
【００１７】前記閉塞部３ｂはブロー成形後において、
図１で示すように、前記エアクリーナホース１の接合部
分とともにホールソー８により切断及び除去される。す
なわち、ホールソー８が連結ピース３の連結部３ａの上
端開口から挿入された後、回転中心軸Ｌ及び鋸歯８ａが
閉塞部３ｂに押し当てられる。この際、閉塞部３ｂには
透孔７及びガイド溝９が形成されている。このため、前
記回転中心軸Ｌの先端が透孔７に係合され、鋸歯８ａが
ガイド溝９に合わせられると、そのホールソー８は連結
ピース３の最適な位置に配置されたことになる。特に、
本実施例では透孔７の上半部が上側ほど拡径するテーパ
状に形成されているので、ホールソー８の回転中心軸Ｌ
の軸心を、透孔７の中心に確実に一致させることが可能
である。そして、前記のように位置決めされたホールソ
ー８が回転されることにより閉塞部３ｂ等が切断及び除
去される（図５参照）。After the blow molding, the closing portion 3b is
As shown in FIG. 1, it is cut and removed by a hole saw 8 together with the joint portion of the air cleaner hose 1. That is, after the hole saw 8 is inserted from the upper end opening of the connecting portion 3a of the connecting piece 3, the rotation center axis L and the saw teeth 8a are pressed against the closing portion 3b. At this time, the through hole 7 and the guide groove 9 are formed in the closed portion 3b. Therefore, when the tip of the rotation center axis L is engaged with the through hole 7 and the saw teeth 8a are aligned with the guide groove 9, the hole saw 8 is arranged at the optimum position of the connecting piece 3. In particular,
In the present embodiment, the upper half of the through hole 7 is formed in a tapered shape in which the diameter increases toward the upper side.
It is possible to surely match the axis of the with the center of the through hole 7. Then, the hole saw 8 positioned as described above is rotated to cut and remove the blocking portion 3b and the like (see FIG. 5).
【００１８】前記閉塞部３ｂ及びエアクリーナホース１
の接合部分１ａが切断及び除去された後、図２及び図３
で示すように、連結ピース３の連結部３ａに円筒リング
４、シールラバー５及びサイドブランチ２が連結される
と、エアクリーナホース１及びサイドブランチ２が相互
に連通する。The closed portion 3b and the air cleaner hose 1
2 and FIG. 3 after the joint portion 1a of FIG.
As shown in, when the cylindrical ring 4, the seal rubber 5 and the side branch 2 are connected to the connecting portion 3a of the connecting piece 3, the air cleaner hose 1 and the side branch 2 communicate with each other.
【００１９】従って、連結ピース２２の閉塞部２２ａに
対する穴あけ工具の位置決めが困難であった従来技術と
は異なり、本実施例ではホールソー８によって連結ピー
ス３の連結部３ａ内壁を誤って傷付けてしまったり、切
断位置が製品毎に異なってしまう等の不具合を解消でき
る。また、ホールソー８の位置決めが容易であることか
ら、位置決めに要する手間を軽減して切断作業の作業効
率を向上させることができる。Therefore, unlike the prior art in which it is difficult to position the drilling tool with respect to the closed portion 22a of the connecting piece 22, the inner wall of the connecting portion 3a of the connecting piece 3 is accidentally damaged by the hole saw 8 in this embodiment. It is possible to solve the problem that the cutting position is different for each product. Further, since the positioning of the hole saw 8 is easy, the labor required for the positioning can be reduced and the work efficiency of the cutting work can be improved.
【００２０】なお、本発明は上記実施例に限定されるも
のではなく、発明の趣旨を逸脱しない範囲で例えば次の
ように構成することもできる。 （１）上記実施例では、連結ピース３の連結部３ａの軸
心をエアクリーナホース１の接合面に対して垂直になる
ようにブロー成形したが、図６に示すように、連結ピー
ス１０の軸心をエアクリーナホース１１の接合面に対し
て傾斜させてブロー成形してもよい。It should be noted that the present invention is not limited to the above embodiment, and may be configured as follows without departing from the spirit of the invention. (1) In the above embodiment, the blow molding is performed so that the axis of the connecting portion 3a of the connecting piece 3 is perpendicular to the joint surface of the air cleaner hose 1, but as shown in FIG. Blow molding may be performed by inclining the core with respect to the joint surface of the air cleaner hose 11.
【００２１】（２）上記実施例では、穴開け工具として
ホールソー８を用いたが、穴開け工具として打ち抜きポ
ンチやドリルを用いることもできる。この際、穴開け工
具の位置決めは、打ち抜きポンチの場合にはポンチの刃
部をガイド溝９に嵌め込んで行われ、ドリルの場合には
ドリルの回転中心先端部を透孔７に挿入して行うことが
できる。(2) In the above embodiment, the hole saw 8 was used as the drilling tool, but a punching punch or a drill may be used as the drilling tool. At this time, the punching tool is positioned by punching the blade of the punch into the guide groove 9 in the case of punching punch, and inserting the tip of the rotation center of the drill into the through hole 7 in the case of drilling. It can be carried out.
【００２２】（３）上記実施例では、エアクリーナホー
ス１と連結ピース３が一体成形されたブロー成形品に適
用したが、インサート部材と一体にブロー成形され、成
形後にインサート部材の切断又は除去を必要とする他の
ブロー成形品用インサート部材に応用してもよい。(3) In the above embodiment, the air cleaner hose 1 and the connecting piece 3 are applied to a blow-molded product integrally molded. However, it is blow-molded integrally with an insert member, and it is necessary to cut or remove the insert member after molding. It may be applied to another insert member for blow molded products.
【００２３】（４）上記実施例では、エアクリーナホー
ス１にサイドブランチ２を連結させて消音効果を図った
が、エアクリーナホース１にレゾネータを連結して消音
効果を図ってもよい。(4) In the above embodiment, the side branch 2 is connected to the air cleaner hose 1 to achieve the sound deadening effect. However, the air cleaner hose 1 may be connected to a resonator to achieve the sound deadening effect.
【００２４】[0024]
【発明の効果】以上詳述したように本発明によれば、穴
あけ工具の位置決めを容易かつ正確に行うことができ、
インサート部材に誤って傷を付けたり、穴あけ工具によ
る切断位置が製品毎に異なるのを未然に防止でき、さら
には、穴あけ作業の作業効率を向上させることができる
という優れた効果を奏する。As described in detail above, according to the present invention, the drilling tool can be positioned easily and accurately.
It is possible to prevent the insert member from being scratched accidentally and to prevent the cutting position of the drilling tool from being different for each product, and further to improve the working efficiency of the drilling work.
【図１】本発明を具体化した一実施例の連結ピース及び
エアクリーナホースの断面図である。FIG. 1 is a cross-sectional view of a connecting piece and an air cleaner hose according to an embodiment of the present invention.
【図２】一実施例の連結ピースを用いて、エアクリーナ
ホースにサイドブランチを連結した状態の斜視図であ
る。FIG. 2 is a perspective view showing a state in which a side branch is connected to an air cleaner hose using the connecting piece according to the embodiment.
【図３】一実施例における図２のＡ−Ａ線断面図であ
る。FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2 in one embodiment.
【図４】一実施例における連結ピース及びエアクリーナ
ホースの斜視図である。FIG. 4 is a perspective view of a connecting piece and an air cleaner hose in one embodiment.
【図５】一実施例において閉塞部が切断、除去された後
のエアクリーナホース及び連結ピースを示す断面図であ
る。FIG. 5 is a cross-sectional view showing the air cleaner hose and the connection piece after the closed portion is cut and removed in one embodiment.
【図６】別例における連結ピース及びエアクリーナホー
スを示す部分断面図である。FIG. 6 is a partial cross-sectional view showing a connecting piece and an air cleaner hose in another example.
【図７】従来技術における連結ピース及びエアクリーナ
ホースの断面図である。FIG. 7 is a cross-sectional view of a connecting piece and an air cleaner hose in the related art.
１…ブロー成形品としてのエアクリーナホース、１ａ…
接合部分、２…付属品としてのサイドブランチ、３…イ
ンサート部材としての連結ピース、３ａ…連結部、３ｂ
…閉塞部、８…穴あけ工具としてのホールソー、９…ガ
イド溝。1 ... Air cleaner hose as blow molded product, 1a ...
Joining part, 2 ... Side branch as an accessory, 3 ... Connection piece as an insert member, 3a ... Connection part, 3b
... Blocking portion, 8 ... Hole saw as a drilling tool, 9 ... Guide groove.
Claims (1)
（２）を連結するための筒状連結部（３ａ）と、 前記連結部（３ａ）の一端を閉塞し、かつブロー成形品
（１）の成形時には同ブロー成形品（１）の一部に接合
し、ブロー成形品（１）の成形後には穴あけ工具（８）
により前記ブロー成形品（１）の接合部分（１ａ）とと
もに切断又は打ち抜かれる閉塞部（３ｂ）とを備え、前
記付属品（２）の連結に際し、ブロー成形品（１）及び
付属品（２）を連通させるようにしたブロー成形品用イ
ンサート部材（３）において、 前記閉塞部（３ｂ）には、前記連結部（３ａ）の他端開
口から挿入される穴あけ工具（８）を位置決めするため
のガイド溝（９）を形成したことを特徴とするブロー成
形品用インサート部材。1. A cylindrical connecting part (3a) for connecting an accessory (2) to the outside of a blow molded product (1), and one end of the connecting part (3a) is closed, and a blow molded product ( When the blow molded product (1) is molded, it is joined to a part of the blow molded product (1), and after the blow molded product (1) is molded, the punching tool (8).
The blow-molded product (1) and the accessory (2) at the time of connecting the accessory (2) with the joint portion (1a) of the blow-molded product (1) and the closing portion (3b) that is cut or punched out. In the insert member (3) for blow-molded products which is made to communicate with each other, for positioning a drilling tool (8) inserted from the other end opening of the connecting part (3a) in the closing part (3b). An insert member for a blow molded product, characterized in that a guide groove (9) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4081128A JP2560946B2 (en) | 1992-04-02 | 1992-04-02 | Insert parts for blow molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4081128A JP2560946B2 (en) | 1992-04-02 | 1992-04-02 | Insert parts for blow molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05278100A JPH05278100A (en) | 1993-10-26 |
| JP2560946B2 true JP2560946B2 (en) | 1996-12-04 |
Family
ID=13737760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4081128A Expired - Fee Related JP2560946B2 (en) | 1992-04-02 | 1992-04-02 | Insert parts for blow molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2560946B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4509515B2 (en) * | 2003-09-16 | 2010-07-21 | エクセル株式会社 | Blow molded hollow body having connector pipe and method for producing the same |
| JP5183293B2 (en) * | 2007-10-31 | 2013-04-17 | キョーラク株式会社 | Insert method in blow molding |
-
1992
- 1992-04-02 JP JP4081128A patent/JP2560946B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05278100A (en) | 1993-10-26 |
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