JPH0141859Y2 - - Google Patents
Info
- Publication number
- JPH0141859Y2 JPH0141859Y2 JP1983114406U JP11440683U JPH0141859Y2 JP H0141859 Y2 JPH0141859 Y2 JP H0141859Y2 JP 1983114406 U JP1983114406 U JP 1983114406U JP 11440683 U JP11440683 U JP 11440683U JP H0141859 Y2 JPH0141859 Y2 JP H0141859Y2
- Authority
- JP
- Japan
- Prior art keywords
- water duct
- water
- cylinder block
- duct
- contraction
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 229920003002 synthetic resin Polymers 0.000 claims description 11
- 239000000057 synthetic resin Substances 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000008602 contraction Effects 0.000 description 15
- 239000000463 material Substances 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
［考案の技術分野］
本考案はシリンダーブロツク内に設けられて冷
却水を分流させるウオータダクトに係り、特に、
ウオータダクト本体を合成樹脂材によつて成型し
た新規なウオータダクトに関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a water duct provided in a cylinder block to divert cooling water, and in particular,
This invention relates to a new water duct whose main body is molded from a synthetic resin material.
［考案の技術的背景とその問題点］
一般にシリンダーブロツクには第１図に示す如
くウオータジヤケツト１が形成され、このウオー
タジヤケツト１に冷却水を分配供給するために筒
体状のウオータダクト２がシリンダーブロツク３
内にその長手方向に沿つて挿入されている。[Technical background of the invention and its problems] Generally, a water jacket 1 is formed in a cylinder block as shown in Fig. 1, and a cylindrical water duct is used to distribute and supply cooling water to the water jacket 1. 2 is cylinder block 3
inserted along its longitudinal direction.
そして、ウオータダクト２にはその長手方向に
適宜間隔を隔てて噴水口４が形成され、一端より
導入した冷却水を噴水口４から各シリンダ５を冷
却すべく分流噴射するようになつている。また、
ウオータダクト２はシリンダブロツク３の一端に
形成された挿入口６からシリンダブロツク３内に
挿入され、その先端嵌合突軸７がシリンダブロツ
ク３の他端に形成した取付孔８に、基端部が挿入
口６にそれぞれ嵌合されて両端支持により固定さ
れている。９は取付孔８に嵌合されたシールキヤ
ツプである。 Water spouts 4 are formed in the water duct 2 at appropriate intervals in its longitudinal direction, and the cooling water introduced from one end is sprayed in separate streams from the water spout 4 to cool each cylinder 5. Also,
The water duct 2 is inserted into the cylinder block 3 through an insertion port 6 formed at one end of the cylinder block 3, and its proximal end is inserted into the mounting hole 8 formed at the other end of the cylinder block 3 so that its distal end fitting protrusion 7 is inserted into the mounting hole 8 formed at the other end of the cylinder block 3. are fitted into the insertion openings 6 and fixed by support at both ends. 9 is a seal cap fitted into the mounting hole 8.
ところが、従来のウオータダクトにあつては、
ステンレス鋼によつて形成されていた。このた
め、熱影響や耐腐蝕性に強いという利点を有する
反面、加工が難しいという欠点がある。即ち、ウ
オータダクトを製造するのに、第２図に示す如く
ステンレス鋼板を筒体状に折曲げると共にその接
合部１０を溶接等によつて接合しなければなら
ず、工数が多くかかり、コストアツプとなつてい
た。 However, in the case of conventional water ducts,
It was made of stainless steel. Therefore, while it has the advantage of being resistant to heat effects and corrosion, it has the disadvantage of being difficult to process. That is, in order to manufacture a water duct, as shown in FIG. 2, it is necessary to bend a stainless steel plate into a cylindrical shape and to join the joined parts 10 by welding or the like, which requires a large number of man-hours and increases costs. I was getting used to it.
［考案の目的］
本考案は上記従来技術の欠点を解消すべく創案
されたものであり、その目的とするところは製造
が容易でコストダウンを図ることができるウオー
タダクトを提供することにある。[Purpose of the invention] The present invention was devised to eliminate the drawbacks of the above-mentioned prior art, and its purpose is to provide a water duct that is easy to manufacture and can reduce costs.
［考案の概要］
本考案は上記目的を達成するために、ウオータ
ダクト本体を合成樹脂材により成型したものであ
る。しかしながら、ウオータダクト本体を単に合
成樹脂材により成型しても、熱変形のみならず、
冷却水として充填される不凍液あるいは洗浄液等
の有機溶剤による化学的変形が生じる新たな問題
が生じる。そこで、本考案はこれら変形によるウ
オータダクト本体の軸方向の移動を許容する伸縮
許容部を設けることにより、ウオータダクトの耐
久性の向上を図つたものである。[Summary of the invention] In order to achieve the above object, the present invention has a water duct body molded from a synthetic resin material. However, even if the water duct body is simply molded from a synthetic resin material, it will not only suffer from thermal deformation.
A new problem arises in which chemical deformation occurs due to organic solvents such as antifreeze or cleaning fluid filled as cooling water. Therefore, the present invention aims to improve the durability of the water duct by providing an expansion/contraction allowing portion that allows the water duct main body to move in the axial direction due to these deformations.
すなわち、シリンダーブロツク内にその一端の
挿入口から合成樹脂材製の筒体状ウオータダクト
本体を挿入してその基端部を挿入口に固定し、該
ウオータダクト本体の先端部にシリンダーブロツ
クの他端の取付孔に軸方向に移動自在に嵌合する
嵌合突軸を形成した構成になつており、嵌合突軸
が取付孔に対して軸方向に移動自在であることに
よりウオータダクト本体の上記変形に伴う軸方向
の伸縮移動が許容されることになる。 That is, a cylindrical water duct body made of a synthetic resin material is inserted into the cylinder block through an insertion opening at one end thereof, the base end thereof is fixed to the insertion opening, and the cylinder block and other parts are attached to the distal end of the water duct body. It has a structure in which a fitting protrusion is formed that fits into the mounting hole at the end so that it can move freely in the axial direction.The fitting protrusion is movable in the axial direction with respect to the mounting hole, so that the water duct body can be moved easily. Expansion and contraction movement in the axial direction accompanying the above deformation is allowed.
［考案の実施例］
以下に本考案の好適実施例を添付図面に基づい
て詳述する。[Embodiments of the invention] Preferred embodiments of the invention will be described in detail below with reference to the accompanying drawings.
本考案の第一実施例を示す第３図において、２
０はシリンダブロツク（第１図参照）内に嵌装さ
れるウオータダクト本体であり、このウオータダ
クト本体２０は合成樹脂材（例えばポリプロピレ
ン）によつて筒体状に成型されている。このウオ
ータダクト本体２０はリンダーブロツク内に両端
部を固定して支持されるので、熱膨張収縮及び不
凍液等有機溶剤による膨脹収縮を許容乃至吸収す
るために伸縮許容部２３が設けられている。 In FIG. 3 showing the first embodiment of the present invention, 2
0 is a water duct body fitted into a cylinder block (see FIG. 1), and this water duct body 20 is molded into a cylindrical shape from a synthetic resin material (for example, polypropylene). Since this water duct main body 20 is supported with both ends fixed within the linderblock, an expansion/contraction allowing portion 23 is provided to allow for or absorb thermal expansion/contraction and expansion/contraction due to organic solvents such as antifreeze.
本実施例では伸縮許容部２３はウオータダクト
本体２０をその長手方向に前後させて分割し、こ
れら分割ダクト部材２１，２２を互いに摺動自在
に嵌合させて形成されている。即ち、先端部の分
割ダクト部材２１は基端部の分割ダクト部材２２
内に長手方向に摺動自在に嵌装されうるようこれ
よりも小径に形成されている。そして、両分割ダ
クト部材２１，２２が互いに嵌合してオーバーラ
ツプした部分のオーバラツプ量ｌは製品の形状、
使用材料等に基づいて最適な値に設定されてい
る。また、分割ダクト部材２１，２２相互の回転
方向のずれを防止するために、両分割ダクト部材
２１，２２は第４図に示す如く互いに係合して回
転を規制しうる断面形状に形成されている。これ
によつて、一側壁に長手方向に適宜間隔に一列に
並んで形成された噴水口４が位置ずれしないよう
になされている。 In this embodiment, the expansion/contraction permitting portion 23 is formed by dividing the water duct main body 20 by moving it forward and backward in the longitudinal direction, and fitting these divided duct members 21 and 22 into each other in a slidable manner. That is, the divided duct member 21 at the distal end is different from the divided duct member 22 at the proximal end.
It is formed to have a smaller diameter than this so that it can be slidably fitted in the longitudinal direction. The overlap amount l of the portion where both the divided duct members 21 and 22 fit into each other and overlap is determined by the shape of the product.
The optimum value is set based on the materials used, etc. In addition, in order to prevent the divided duct members 21 and 22 from shifting in the rotational direction, the divided duct members 21 and 22 are formed to have a cross-sectional shape that can engage with each other and restrict their rotation, as shown in FIG. There is. This prevents the fountain ports 4, which are formed in a row on one side wall at appropriate intervals in the longitudinal direction, from shifting.
上記噴水口４の周縁部にはビード、リブ等の厚
肉補強部２４が形成され、ウオータダクト本体２
０の曲げ剛性の向上が図られている。上記先端側
分割ダクト部材２１の先端部は閉塞され、この部
分にはシリンダブロツクに形成された取付孔（第
１図符号８で示される）に嵌合する嵌合突軸７が
形成されている。一方、基端側分割ダクト部材２
０の基端部２０ａは冷却水導入口２５として開口
されると共に、冷却水を導入し易いように漏斗状
に拡大して形成されている。また、この基端部２
０ａはシリンダブロツクに形成された挿入口（第
１図中符号６で示される）に嵌合する径に設定さ
れている。 A thick reinforcement part 24 such as a bead or rib is formed on the peripheral edge of the water fountain 4, and the water duct main body 2
0 bending rigidity is improved. The distal end portion of the distal end-side divided duct member 21 is closed, and a fitting protrusion 7 is formed in this portion to fit into a mounting hole (indicated by reference numeral 8 in FIG. 1) formed in the cylinder block. . On the other hand, the base end side divided duct member 2
The base end portion 20a of 0 is opened as a cooling water inlet 25, and is enlarged into a funnel shape so that cooling water can be easily introduced. In addition, this proximal end 2
0a is set to a diameter that fits into an insertion opening (indicated by reference numeral 6 in FIG. 1) formed in the cylinder block.
上記分割ダクト部材２１，２２は別々に型成型
してもよいが、第５図に示すように一体的に型成
型してもよい。この場合、両分割ダクト部材２
１，２２は段部２６を介して連続形成され、後に
段部２６を挾む切断線C1，C2で両者を切離すこ
とによつて完成されることになる。 The divided duct members 21 and 22 may be molded separately, or may be molded integrally as shown in FIG. In this case, both divided duct members 2
1 and 22 are formed continuously through the stepped portion 26, and are later completed by cutting the two along cutting lines C 1 and C 2 that sandwich the stepped portion 26 .
しかして、上述の如くウオークダクト本体２０
を合成樹脂材により成型したので、製造が容易で
あり、軽量化及びコストダウンを図ることができ
る。 However, as described above, the walk duct main body 20
Since it is molded from a synthetic resin material, it is easy to manufacture, and it is possible to reduce weight and cost.
また、このウオータダクト本体に入れ子状の伸
縮許容部２３を設けたので、熱あるいは化学変化
によるウオータダクト本体２０の膨脹収縮を充分
に許容乃至吸収することができ、ウオータダクト
本体に内部応力を発生させることがなく、その耐
久性を可及的に向上させることができる。尚、嵌
合部から水漏れを生じることがあるが、ウオータ
ジヤケツト内に据付けられる構造上その水漏れは
問題とされない。 In addition, since the nested expansion/contraction allowing portion 23 is provided in the water duct body, expansion and contraction of the water duct body 20 due to heat or chemical changes can be sufficiently tolerated or absorbed, thereby generating internal stress in the water duct body. The durability can be improved as much as possible without causing any damage. Although water may leak from the fitting portion, this water leakage is not a problem due to the structure of the fitting being installed inside a water jacket.
尚、分割ダクト部材２１，２２の回転規制手段
としては、第６図に示すように、基端側分割ダク
ト部材２２の内壁に突起部２７を形成し、先端部
分割ダクト部材２１の外壁に上記突起部２７が長
手方向に摺動自在に係合する案内溝２８を形成し
てもよい。又、両分割ダクト部材２１，２２の収
縮による嵌合部の離脱を防止するために、例えば
第７図に示す如く両分割ダクト部材２１，２２の
先端部に互いに係合する係合爪２９，３０を形成
してもよい。 As shown in FIG. 6, as a rotation regulating means for the divided duct members 21 and 22, a protrusion 27 is formed on the inner wall of the proximal divided duct member 22, and a protrusion 27 is formed on the outer wall of the distal end divided duct member 21. A guide groove 28 may be formed in which the protrusion 27 engages slidably in the longitudinal direction. In addition, in order to prevent the fitting parts from separating due to contraction of both the divided duct members 21 and 22, engaging claws 29, which engage with the tip ends of both the divided duct members 21 and 22, are provided, for example, as shown in FIG. 30 may be formed.
第８図は本考案の第２実施例を示している。図
示する如く合成樹脂材により一体成型されたウオ
ータダクト本体２０の長手方向略中央部には伸縮
許容部２３としてその部分を拡径させたベローズ
３１が形成されている。 FIG. 8 shows a second embodiment of the invention. As shown in the figure, a bellows 31 is formed at approximately the center in the longitudinal direction of the water duct main body 20, which is integrally molded from a synthetic resin material, as an expansion/contraction permitting portion 23, the diameter of which is enlarged.
なお、ベローズ３１としては拡径部が多段に形
成されたものであつてもよい。この場合、ウオー
タダクト本体２０はベローズ３１部分で曲り易く
なるので、曲げ剛性を高めるべく長手方向に金属
製補強棒３２を掛け渡すとよい。ウオータダクト
本体２０の外壁にはベローズ３１を挾んだ両側対
向位置に軸受腕部３３が突設され、これら軸受腕
部３３に跨つて補強棒３２が長手方向に摺動自在
に取付けられている。 Note that the bellows 31 may have enlarged diameter portions formed in multiple stages. In this case, since the water duct main body 20 is easily bent at the bellows 31 portion, it is preferable to extend a metal reinforcing rod 32 in the longitudinal direction to increase the bending rigidity. Bearing arms 33 are protruded from the outer wall of the water duct main body 20 at opposing positions on both sides sandwiching the bellows 31, and a reinforcing rod 32 is attached to straddle these bearing arms 33 so as to be slidable in the longitudinal direction. .
第９図、第１０図は本考案の第３実施例を示し
ている。図示する如く合成樹脂材により一体成型
されたウオータダクト本体２０はその基端部２０
ａをシリンダブロツク３の挿入口６に嵌合させる
ことにより固定され、先端部が自由端とされてい
る。ウオータダクト本体２０の先端部にはその長
手方向の剛性を高めるべく先端方向に縮径された
テーパ部３４が形成されると共にこのテーパ部３
４の先端には嵌合突軸７が形成されている。この
嵌合突軸７はシリンダブロツク３の他端に形成さ
れた取付孔８に緩く挿入されて長手方向に移動自
在に支持されており、伸縮許容部２３としてウオ
ータダクト本体２０の長手方向の膨脹収縮を許容
できるように構成されている。ウオータダクト本
体２０は第１０図中二点鎖線で示す如く膨脹し、
あるいは一点鎖線で示す如く収縮することにな
り、長手方向の移動が充分に許容されることにな
る。 9 and 10 show a third embodiment of the present invention. As shown in the figure, the water duct main body 20 is integrally molded from a synthetic resin material, and its base end 20
A is fixed by fitting into the insertion port 6 of the cylinder block 3, and the tip is a free end. A tapered part 34 is formed at the distal end of the water duct main body 20 and has a diameter reduced in the distal direction in order to increase the rigidity in the longitudinal direction.
A fitting protruding shaft 7 is formed at the tip of 4. This fitting shaft 7 is loosely inserted into a mounting hole 8 formed at the other end of the cylinder block 3 and is supported so as to be freely movable in the longitudinal direction. Constructed to allow for contraction. The water duct main body 20 expands as shown by the two-dot chain line in FIG.
Alternatively, it will contract as shown by the dashed line, and movement in the longitudinal direction will be sufficiently permitted.
［考案の効果］
以上要するに本考案によれば次の如き優れた効
果を発揮する。[Effects of the invention] In summary, the present invention provides the following excellent effects.
(1) ウオータダクト本体を合成樹脂材によつて成
型したので、製造が容易にでき、コストダウン
が図れると共に軽量化することができる。(1) Since the water duct body is molded from a synthetic resin material, it can be manufactured easily, and the cost and weight can be reduced.
(2) ウオータダクト本体に長手方向の移動を許容
する伸縮許容部としてウオータダクト本体の先
端部にシリンダーブロツクの他端の取付孔に軸
方向に移動自在に嵌合する嵌合突軸を形成した
ので、熱膨脹収縮や有機溶剤による膨脹収縮を
充分に許容することができ、内部応力が発生し
ないことから、耐久性が著しく向上する。(2) A fitting protrusion shaft is formed at the tip of the water duct body as an expansion/contraction portion that allows movement in the longitudinal direction of the water duct body, which fits into the mounting hole at the other end of the cylinder block so as to be movable in the axial direction. Therefore, thermal expansion and contraction and expansion and contraction caused by organic solvents can be sufficiently tolerated, and since no internal stress is generated, durability is significantly improved.
(3) 合成樹脂材であるため、ビード等補強部材を
形成乃至付設することが容易にでき、曲げ剛性
を充分に高めることができる。(3) Since it is a synthetic resin material, reinforcing members such as beads can be easily formed or attached, and the bending rigidity can be sufficiently increased.
第１図は従来のウオータダクトを説明するため
のシリンダブロツクの断面図、第２図は第１図Ａ
−Ａ線拡大断面図、第３図は本考案の第１実施例
を示すウオータダクトの縦断面図、第４図は第３
図Ｂ−Ｂ線拡大断面図、第５図はウオータダクト
の成型方法を示す側面図、第６図は回転規制手段
の変形を示す縦断面図、第７図は離脱防止手段を
示す部分断面図、第８図は本考案の第２実施例を
示すウオータダクトの側面図、第９図は本考案の
第３実施例を示すシリンダブロツクの断面図、第
１０図は第９図Ｄ部拡大図である。
図中、２０はウオータダクト本体、２３は伸縮
許容部である。
Figure 1 is a sectional view of a cylinder block for explaining a conventional water duct, and Figure 2 is a cross-sectional view of a cylinder block shown in Figure 1A.
-A line enlarged sectional view, FIG. 3 is a longitudinal sectional view of a water duct showing the first embodiment of the present invention, and FIG.
Figure 5 is an enlarged sectional view taken along the line B-B, Figure 5 is a side view showing the water duct molding method, Figure 6 is a longitudinal sectional view showing a modification of the rotation regulating means, and Figure 7 is a partial sectional view showing the detachment prevention means. , FIG. 8 is a side view of a water duct showing a second embodiment of the present invention, FIG. 9 is a sectional view of a cylinder block showing a third embodiment of the present invention, and FIG. 10 is an enlarged view of part D in FIG. It is. In the figure, 20 is a water duct main body, and 23 is an expansion/contraction allowing portion.
Claims (1)
合成樹脂材製の筒体状ウオータダクト本体を挿入
してその基端部を挿入口に固定し、該ウオータダ
クト本体の先端部にシリンダーブロツクの他端の
取付孔に軸方向に移動自在に嵌合する嵌合突軸を
形成したことを特徴とするウオータダクト。 A cylindrical water duct body made of synthetic resin is inserted into the cylinder block through the insertion opening at one end, its base end is fixed in the insertion opening, and the other end of the cylinder block is inserted into the tip of the water duct body. A water duct characterized in that a fitting protruding shaft is formed in a mounting hole so as to be movable in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11440683U JPS6023212U (en) | 1983-07-25 | 1983-07-25 | water duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11440683U JPS6023212U (en) | 1983-07-25 | 1983-07-25 | water duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6023212U JPS6023212U (en) | 1985-02-18 |
| JPH0141859Y2 true JPH0141859Y2 (en) | 1989-12-08 |
Family
ID=30264476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11440683U Granted JPS6023212U (en) | 1983-07-25 | 1983-07-25 | water duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6023212U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5718714B2 (en) * | 1976-05-03 | 1982-04-17 | ||
| JPS5816488B2 (en) * | 1979-12-26 | 1983-03-31 | 富士通株式会社 | Japanese text input method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56120311U (en) * | 1980-02-16 | 1981-09-12 | ||
| JPS5718714U (en) * | 1980-07-07 | 1982-01-30 | ||
| JPS5816488U (en) * | 1981-07-24 | 1983-02-01 | 株式会社日立製作所 | Pit barrel type pump |
-
1983
- 1983-07-25 JP JP11440683U patent/JPS6023212U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5718714B2 (en) * | 1976-05-03 | 1982-04-17 | ||
| JPS5816488B2 (en) * | 1979-12-26 | 1983-03-31 | 富士通株式会社 | Japanese text input method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6023212U (en) | 1985-02-18 |
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