JPH0828782A - Lubricating port cap - Google Patents
Lubricating port capInfo
- Publication number
- JPH0828782A JPH0828782A JP17053594A JP17053594A JPH0828782A JP H0828782 A JPH0828782 A JP H0828782A JP 17053594 A JP17053594 A JP 17053594A JP 17053594 A JP17053594 A JP 17053594A JP H0828782 A JPH0828782 A JP H0828782A
- Authority
- JP
- Japan
- Prior art keywords
- cap
- fuel filler
- filler opening
- protrusions
- lubricating port
- 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.)
- Pending
Links
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は作業車のギヤ伝動ケース
や車軸ケース等のケースにおいて、上部に備えてある給
油口用のキャップの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a cap for a fuel filler provided on an upper portion of a case such as a gear transmission case or an axle case of a work vehicle.
【０００２】[0002]
【従来の技術】前述のような給油口用のキャップの一例
が、実開昭５４−８０７６号公報に開示されている。開
示されているキャップでは、給油口の開口縁に上方から
接して給油口を塞ぐ頭部、及び給油口の内径より小径で
給油口の内方に向かって挿入される胴部（前記公報の第
２図中の４ａ）を備えており、胴部の円周方向に沿って
形成されて給油口の内面に接するリング状の凸部を、胴
部の長手方向に沿って所定間隔を置いて複数個形成し、
これらを合成ゴム又は合成樹脂により一体形成して、キ
ャップを構成している。そして、キャップにおいて胴部
の底面と頭部の上面とに亘って、１本の直線状の通気孔
（前記公報の第２図中の４ｂ）を開孔している。2. Description of the Related Art An example of a cap for a fuel filler as described above is disclosed in Japanese Utility Model Laid-Open No. 54-8076. In the disclosed cap, a head portion that comes into contact with the opening edge of the filler opening from above to close the filler opening, and a body portion that is smaller in diameter than the inner diameter of the filler opening and is inserted inward of the filler opening (see the above-mentioned publication). 2a in FIG. 2 is provided, and a plurality of ring-shaped convex portions formed along the circumferential direction of the body portion and in contact with the inner surface of the fuel filler are provided at predetermined intervals along the longitudinal direction of the body portion. Individually formed,
These are integrally formed of synthetic rubber or synthetic resin to form a cap. Further, in the cap, one linear ventilation hole (4b in FIG. 2 of the above publication) is opened over the bottom surface of the body and the top surface of the head.
【０００３】[0003]
【発明が解決しようとする課題】前述のようにキャップ
に直線状の通気孔を設けた場合、機体が傾斜したり機体
が大きく跳ねたりすると、ケース内の潤滑油も大きく揺
れて潤滑油の油面がキャップに達して、キャップの通気
孔から潤滑油が溢れ出るおそれがある。本発明は給油口
用のキャップにおいて、ケース内と外側を連通させる通
気構造を、ケース内の潤滑油が溢れ出にくいように構成
することを目的としている。When the cap is provided with the straight air vents as described above, if the body tilts or the body bounces greatly, the lubricating oil in the case also largely shakes and the oil of the lubricating oil is lost. The surface may reach the cap and the lubricating oil may overflow from the vent holes in the cap. SUMMARY OF THE INVENTION It is an object of the present invention, in a cap for a fuel filler, to configure a ventilation structure for communicating the inside and the outside of the case so that the lubricating oil in the case does not easily overflow.
【０００４】[0004]
【課題を解決するための手段】本発明の特徴は以上のよ
うな給油口用のキャップにおいて、次のように構成する
ことにある。つまり、給油口の開口縁に上方から接して
給油口を塞ぐ頭部と、給油口の内径より小径で頭部から
給油口の内方に向かって挿入される胴部とを備え、胴部
の円周方向に沿って形成され給油口の内面に接するリン
グ状の凸部を、胴部の長手方向に沿って所定間隔を置い
て複数個形成し、頭部、胴部及び複数個の凸部を合成ゴ
ム又は合成樹脂により一体形成すると共に、隣合う一対
の凸部どうしにおいて互いに位相が異なるように、各凸
部の外周部に切欠き部を形成し、且つ、給油口の内方と
外側とを連通させる通気部を頭部に形成してある。The feature of the present invention resides in that the cap for the fuel filler as described above is constructed as follows. In other words, a head portion that contacts the opening edge of the filler opening from above to close the filler opening, and a body portion that has a smaller diameter than the inner diameter of the filler opening and is inserted from the head toward the inside of the filler opening A plurality of ring-shaped convex portions formed along the circumferential direction and in contact with the inner surface of the oil filler opening are formed at predetermined intervals along the longitudinal direction of the body, and the head, the body and the plurality of convex portions are formed. Is formed integrally with synthetic rubber or synthetic resin, and a notch is formed in the outer peripheral portion of each convex portion so that the phases of adjacent convex portions are different from each other. A vent is formed on the head for communicating with the.
【０００５】[0005]
【作用】本発明のように構成すると例えば図２及び図３
に示すように、給油口１４内の空気は先ず内方側の凸部
１５ｃの切欠き部１５ｄから、凸部１５ｃどうしの間の
空間に入り込み、位相が異なる次の凸部１５ｃの切欠き
部１５ｄから、次の凸部１５ｃどうしの間の空間と言う
ように、方向を大きく変えながらキャップ１５の頭部１
５ａに達して、頭部１５ａの通気部１５ｅから外側に抜
ける。When configured as in the present invention, for example, FIGS.
As shown in FIG. 4, the air in the filler opening 14 first enters the space between the protrusions 15c from the notch 15d of the protrusion 15c on the inner side, and the notch of the next protrusion 15c having a different phase. From 15d to the space between the next convex portions 15c, the head portion 1 of the cap 15 while greatly changing the direction
When it reaches 5a, it comes out from the ventilation portion 15e of the head portion 15a to the outside.
【０００６】このように、キャップ１５において空気の
抜け道を直線状ではなく迷路状に形成すれば、ケース内
の潤滑油が大きく揺れて潤滑油の油面がキャップに達し
たとしても、潤滑油が最初の凸部１５ｃの切欠き部１５
ｄから、頭部１５ａの通気部１５ｅにまで一気に達する
ような状態は生じ難い。そして、給油口１４からキャッ
プ１５を抜きとって、給油口１４から潤滑油の補給を行
うのであり、補給後にキャップ１５を給油口１４に再び
挿入する。As described above, if the air escape passage is formed in the cap 15 in a labyrinthine shape instead of a straight shape, even if the lubricating oil in the case is largely shaken and the oil surface of the lubricating oil reaches the cap, Notch 15 of the first convex portion 15c
It is unlikely that a state will reach from the d to the ventilation portion 15e of the head portion 15a at once. Then, the cap 15 is removed from the fuel filler port 14 to replenish the lubricating oil from the fuel filler port 14, and the cap 15 is reinserted into the fuel filler port 14 after replenishment.
【０００７】[0007]
【発明の効果】以上のように給油口のキャップにおい
て、キャップの空気の抜け道を迷路状に形成することに
よって、ケース内の潤滑油が大きく揺れてもキャップか
ら潤滑油が溢れ出るおそれがないので、潤滑油が溢れ出
ることによる各部の汚れ等を未然に防止することができ
た。As described above, in the cap of the oil supply port, by forming the air escape passage of the cap in a labyrinth shape, there is no fear that the lubricating oil will overflow from the cap even if the lubricating oil in the case is greatly shaken. It was possible to prevent stains and the like on each part due to the lubricating oil overflowing.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１及び図４は、作業車の一例である農用トラク
タの前車軸ケース１付近の構造を示している。機体前部
のエンジン（図示せず）からの動力は、主クラッチ（図
示せず）及び伝動軸（図示せず）を介して、機体後部の
ミッションケース（図示せず）に伝達され、左右の後輪
（図示せず）に伝達される。後輪の直前で分岐した動力
が、ミッションケースから前輪出力軸７、前車軸ケース
１内のデフ機構８、左右の差動軸９、左右の斜軸１０、
前輪支持ケース１１内の伝動ギヤ１２を介して左右の前
輪１３に伝達される。Embodiments of the present invention will be described below with reference to the drawings. 1 and 4 show a structure near a front axle case 1 of an agricultural tractor which is an example of a work vehicle. Power from an engine (not shown) at the front of the machine is transmitted to a mission case (not shown) at the rear of the machine through a main clutch (not shown) and a transmission shaft (not shown), and It is transmitted to the rear wheel (not shown). The power branched just before the rear wheels is transmitted from the transmission case to the front wheel output shaft 7, the differential mechanism 8 in the front axle case 1, the left and right differential shafts 9, the left and right oblique shafts 10,
It is transmitted to the left and right front wheels 13 via a transmission gear 12 in the front wheel support case 11.
【０００９】図１に示すように前車軸ケース１の右側上
部に、パイプ状の給油口１４を設けており、次にこの給
油口１４用のキャップ１５について説明する。図２及び
図３に示すように、キャップ１５は合成ゴム又は合成樹
脂により一体形成されており、給油口１４の開口縁に上
方から接して給油口１４を塞ぐ頭部１５ａ、給油口１４
の内径より小径で頭部１５ａから給油口１４の内方（下
方）に向かって挿入される胴部１５ｂとを備えている。
胴部１５ｂの円周方向に沿って形成されて、給油口１４
の内面に接するリング状の凸部１５ｃを、胴部１５ｂの
長手方向に沿って所定間隔を置いて複数個形成してい
る。As shown in FIG. 1, a pipe-shaped refueling port 14 is provided on the upper right side of the front axle case 1. Next, a cap 15 for the refueling port 14 will be described. As shown in FIGS. 2 and 3, the cap 15 is integrally formed of synthetic rubber or synthetic resin, and is in contact with the opening edge of the fuel filler port 14 from above to close the fuel filler port 14 and the fuel filler port 14
And a body portion 15b having a diameter smaller than the inner diameter of the head portion 15a and being inserted from the head portion 15a toward the inside (downward) of the fuel filler port 14.
The fuel supply port 14 is formed along the circumferential direction of the body 15b.
A plurality of ring-shaped convex portions 15c contacting the inner surface of the body are formed at predetermined intervals along the longitudinal direction of the body portion 15b.
【００１０】各凸部１５ｃの外周部において互いに位相
が１８０°異なるように、切欠き部１５ｄが設けられて
いる。頭部１５ａの底面（給油口１４の開口縁に接する
面）に、給油口１４の内方と外側とを連通させる通気溝
１５ｅ（通気部に相当）が形成されており、頭部１５ａ
の隣（下）の凸部１５ｃの切欠き部１５ｄと、頭部１５
ａの通気溝１５ｅとは、位相が１８０°異なっている。
前車軸ケース１内の潤滑油の油面は、キャップ１５の胴
部１５ｂの下端が漬かる程度で、差動軸９よりも少し上
側の位置である。Notches 15d are provided on the outer peripheral portions of the respective convex portions 15c so that the phases thereof are different from each other by 180 °. A ventilation groove 15e (corresponding to a ventilation portion) is formed on the bottom surface of the head portion 15a (a surface in contact with the opening edge of the fuel filler opening 14) so that the inside and the outside of the fuel filler opening 14 communicate with each other.
15d next to (below) the notch 15d of the protrusion 15c and the head 15
The phase differs from that of the ventilation groove 15e of a by 180 °.
The oil surface of the lubricating oil in the front axle case 1 is at a position slightly above the differential shaft 9 to the extent that the lower end of the body portion 15b of the cap 15 is dipped.
【００１１】図４及び図５に示すように、機体前部の左
右のフレーム２に亘り１枚の長方形状の支持板３が固定
されて、支持板３の前後に一対の支持ブラケット４がボ
ルト６で連結されており、支持ブラケット４により前車
軸ケース１が、ブッシュ無しで機体前後方向の軸芯周り
にローリング自在に支持されている。支持板３にはボル
ト６の挿入用の４個の孔がプレスで開孔されており、孔
の位置にナット５が溶接固定されている。As shown in FIGS. 4 and 5, one rectangular support plate 3 is fixed over the left and right frames 2 at the front of the machine body, and a pair of support brackets 4 are bolted in front of and behind the support plate 3. The front axle case 1 is supported by a support bracket 4 so as to be freely rollable around a shaft center in the longitudinal direction of the machine body without a bush. Four holes for inserting the bolts 6 are opened in the support plate 3 by pressing, and the nuts 5 are welded and fixed at the positions of the holes.
【００１２】図１に示すように前車軸ケース１のデフ機
構８において、ピニオンギヤ１６の外側の底面を平面状
に加工しており、デフケース１７の外径が小さなものと
なるように構成している。前輪支持ケース１１は、上側
のベアリング１８及び下側の摺接部１１ａにより、前車
軸ケース１に対して回動自在に支持されており、前輪支
持ケース１１の下方への抜けを止めるスラストカラー１
９を設けている。As shown in FIG. 1, in the diff mechanism 8 of the front axle case 1, the outer bottom surface of the pinion gear 16 is processed into a flat shape so that the diff case 17 has a small outer diameter. . The front wheel supporting case 11 is rotatably supported with respect to the front axle case 1 by an upper bearing 18 and a lower sliding contact portion 11a, and the thrust collar 1 for preventing the front wheel supporting case 11 from coming out downward.
9 is provided.
【００１３】尚、特許請求の範囲の項に図面との対照を
便利にする為に符号を記すが、該記入により本発明は添
付図面の構成に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.
【図１】前車軸ケースの縦断正面図FIG. 1 is a vertical sectional front view of a front axle case.
【図２】給油口及びキャップの縦断正面図FIG. 2 is a vertical cross-sectional front view of a filler opening and a cap.
【図３】キャップの横断平面図FIG. 3 is a cross-sectional plan view of the cap.
【図４】前車軸ケース付近の縦断側面図FIG. 4 is a vertical sectional side view near the front axle case.
【図５】前車軸ケースの支持ブラケット付近の縦断背面
図FIG. 5 is a vertical cross-sectional rear view near the support bracket of the front axle case.
１４ 給油口 １５ａ 頭部 １５ｂ 胴部 １５ｃ 凸部 １５ｄ 切欠き部 １５ｅ 通気部 14 Refueling Port 15a Head 15b Body 15c Convex 15d Notch 15e Vent
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山田 俊三 大阪府堺市石津北町64番地 株式会社クボ タ堺製造所内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shunzo Yamada 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Sakai Factory
Claims (1)
て前記給油口（１４）を塞ぐ頭部（１５ａ）と、前記給
油口（１４）の内径より小径で前記頭部（１５ａ）から
前記給油口（１４）の内方に向かって挿入される胴部
（１５ｂ）とを備え、 前記胴部（１５ｂ）の円周方向に沿って形成され前記給
油口（１４）の内面に接するリング状の凸部（１５ｃ）
を、前記胴部（１５ｂ）の長手方向に沿って所定間隔を
置いて複数個形成し、前記頭部（１５ａ）、胴部（１５
ｂ）及び複数個の凸部（１５ｃ）を合成ゴム又は合成樹
脂により一体形成すると共に、 前記隣合う一対の凸部（１５ｃ）どうしにおいて互いに
位相が異なるように、前記各凸部（１５ｃ）の外周部に
切欠き部（１５ｄ）を形成し、且つ、前記給油口（１
４）の内方と外側とを連通させる通気部（１５ｅ）を前
記頭部（１５ａ）に形成してある給油口用のキャップ。1. A head portion (15a) for contacting the opening edge of the fuel filler opening (14) from above to close the fuel filler opening (14), and a head portion (15a) having a diameter smaller than the inner diameter of the fuel filler opening (14). A body portion (15b) inserted inward from the fuel filler opening (14) to contact the inner surface of the fuel filler opening (14) formed along the circumferential direction of the body portion (15b). Ring-shaped protrusion (15c)
Plural pieces are formed at predetermined intervals along the longitudinal direction of the body portion (15b), and the head portion (15a) and the body portion (15) are formed.
b) and the plurality of protrusions (15c) are integrally formed of synthetic rubber or synthetic resin, and the respective protrusions (15c) are formed so that the adjacent protrusions (15c) are out of phase with each other. A cutout portion (15d) is formed on the outer peripheral portion, and the oil supply port (1
4) A cap for a fuel filler, in which a ventilation part (15e) for communicating the inside and the outside of 4) is formed in the head part (15a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17053594A JPH0828782A (en) | 1994-07-22 | 1994-07-22 | Lubricating port cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17053594A JPH0828782A (en) | 1994-07-22 | 1994-07-22 | Lubricating port cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0828782A true JPH0828782A (en) | 1996-02-02 |
Family
ID=15906722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17053594A Pending JPH0828782A (en) | 1994-07-22 | 1994-07-22 | Lubricating port cap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0828782A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000257793A (en) * | 1999-03-09 | 2000-09-19 | Mitsubishi Heavy Ind Ltd | Air vent device of oil tank |
| KR20040022328A (en) * | 2002-09-05 | 2004-03-12 | 현대자동차주식회사 | A oil level gauge |
| JP2010121472A (en) * | 2008-11-17 | 2010-06-03 | Yanmar Co Ltd | Fuel filter |
-
1994
- 1994-07-22 JP JP17053594A patent/JPH0828782A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000257793A (en) * | 1999-03-09 | 2000-09-19 | Mitsubishi Heavy Ind Ltd | Air vent device of oil tank |
| KR20040022328A (en) * | 2002-09-05 | 2004-03-12 | 현대자동차주식회사 | A oil level gauge |
| JP2010121472A (en) * | 2008-11-17 | 2010-06-03 | Yanmar Co Ltd | Fuel filter |
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