JP3508462B2 - Transmission case joint structure - Google Patents
Transmission case joint structureInfo
- Publication number
- JP3508462B2 JP3508462B2 JP10844197A JP10844197A JP3508462B2 JP 3508462 B2 JP3508462 B2 JP 3508462B2 JP 10844197 A JP10844197 A JP 10844197A JP 10844197 A JP10844197 A JP 10844197A JP 3508462 B2 JP3508462 B2 JP 3508462B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission case
- wall structure
- case
- joint
- double wall
- 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
Landscapes
- General Details Of Gearings (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、変速機ケースのケ
ース部材間の接合面に設けるシール部材の耐久性を向上
させるようにした、変速機ケースの接合構造に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission case joining structure for improving the durability of a seal member provided on a joining surface between case members of a transmission case.
【０００２】[0002]
【従来の技術】複数のケース部材より成る変速機ケース
のケース部材間を接合する、変速機ケースの接合構造の
従来例としては、例えば該変速機ケースの接合構造を１
つのケース接合面で切断した断面を示す図３（ａ）およ
びそのＡ−Ａ断面図である図３（ｂ）に示すものがあ
る。この従来例では、接合すべき２つのケース部材５
１，５２のフランジ部５１ａ，５２ａの端部に位置する
接合面５１ｂ，５２ｂにシール部材（例えば液状ガスケ
ット）５３を図３（ａ）に一点鎖線で示すようにビード
状に塗布した後、ケース部材５１，５２をボルト５４で
締結結合することにより、ケース部材５１，５２のフラ
ンジ部５１ａ，５２ａの接合面５１ｂ，５２ｂの全域に
亘ってシール部材５３を塗布するようにしている。2. Description of the Related Art As a conventional example of a joint structure of a transmission case in which case members of a transmission case composed of a plurality of case members are joined, for example, a joint structure of the transmission case is
There is one shown in FIG. 3 (a) showing a cross section cut along one case joint surface and FIG. 3 (b) showing an AA cross section thereof. In this conventional example, two case members 5 to be joined are to be joined.
After applying a sealing member (for example, a liquid gasket) 53 to the joint surfaces 51b and 52b located at the ends of the flange portions 51a and 52a of Nos. 1 and 52 in a bead shape as shown by the one-dot chain line in FIG. By fastening and connecting the members 51 and 52 with the bolts 54, the seal member 53 is applied over the entire area of the joint surfaces 51b and 52b of the flange portions 51a and 52a of the case members 51 and 52.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の変速機ケースの接合構造においては、接合すべ
き２つのケース部材５１，５２の接合面５１ｂ，５２ｂ
を含むフランジ部５１ａ，５２ａを一重壁構造としたた
め、変速機内部で発生した力が接合面５１ｂ，５２ｂに
内周側から直接入力することになり、この力は接合面５
１ｂ，５２ｂを変形させるように作用する。また、変速
機に内蔵される回転部品等により掻き上げられた作動油
が接合面５１ｂ，５２ｂの内周を直撃し、シール部材５
３を浸食する。以上により、シール部材５３が形成する
シール面に該シール面を内周側から破ろうとする力が作
用することになり、シール部材５３による所望のシール
機能が劣化するおそれがある。However, in the above-described joining structure for the conventional transmission case, the joining surfaces 51b, 52b of the two case members 51, 52 to be joined are to be joined.
Since the flange portions 51a and 52a including the structure have a single-wall structure, the force generated inside the transmission is directly input to the joint surfaces 51b and 52b from the inner peripheral side.
It acts to deform 1b and 52b. Further, the hydraulic oil scraped up by the rotating parts incorporated in the transmission directly hits the inner circumferences of the joint surfaces 51b, 52b, and the seal member 5
Erodes 3. As described above, the force of breaking the seal surface from the inner peripheral side acts on the seal surface formed by the seal member 53, and the desired sealing function of the seal member 53 may deteriorate.
【０００４】本発明は、変速機内部で発生した力や飛散
した作動油の影響を受け難い変速機ケースの接合構造を
提供することにより、上述した問題を解決することを目
的とする。An object of the present invention is to solve the above-mentioned problems by providing a joint structure for a transmission case that is less likely to be affected by the force generated inside the transmission and the scattered operating oil.
【０００５】[0005]
【課題を解決するための手段】この目的のため、本発明
の請求項１の構成は、複数のケース部材より成る変速機
ケースのケース部材間を接合する、変速機ケースの接合
構造において、接合すべき２つのケース部材の接合面を
含むフランジ部の夫々に、該接合面と直交する方向に延
在する溝を対向して設け、該溝により前記フランジ部の
夫々を内壁と外壁との二重壁構造とするとともに外壁内
面を変速機ケース外面より外側に位置させるようにし、
前記二重壁構造の内外壁の連結部の肉厚を内外壁の肉厚
に比べて薄くして前記連結部を薄肉化し、前記接合面
の、前記二重壁構造の外壁間に位置する部分のみにシー
ル部材を設けることを特徴とするものである。To this end, the structure according to claim 1 of the present invention is a joint structure for a transmission case, in which case members of a transmission case composed of a plurality of case members are joined together. To each of the flange portions including the joint surfaces of the two case members to be opposed, a groove extending in a direction orthogonal to the joint surface is provided so as to face each other, and each of the flange portions is divided into an inner wall and an outer wall by the groove. With a heavy wall structure, the inner surface of the outer wall is positioned outside the outer surface of the transmission case,
The thickness of the connecting portion of the inner and outer walls of the double wall structure is the thickness of the inner and outer walls.
Thinner than that of the joint surface
Of the double wall structure only between the outer walls
It is characterized by providing a ruler member .
【０００６】本発明の請求項１においては、接合すべき
２つのケース部材の接合面を含むフランジ部の夫々に
は、該接合面と直交する方向に延在する溝が対向して設
けられており、該溝により前記フランジ部の夫々が内壁
と外壁との二重壁構造となるとともに外壁内面が変速機
ケース外面より外側に位置しており、前記二重壁構造の
内外壁の連結部の肉厚が内外壁の肉厚に比べて薄くなっ
て前記連結部が薄肉化されている。また、本発明の請求
項１においては、前記接合面の、前記二重壁構造の外壁
間に位置する部分のみにシール部材が設けられており、
前記二重壁構造の内壁間に位置する部分にはシール部材
が設けられていない。 According to the first aspect of the present invention, each of the flange portions including the joint surfaces of the two case members to be joined is provided with a groove extending in a direction orthogonal to the joint surfaces so as to face each other. And each of the flange portions has a double wall structure of an inner wall and an outer wall by the groove, and the inner surface of the outer wall is located outside the outer surface of the transmission case .
The thickness of the connecting part of the inner and outer walls is thinner than the thickness of the inner and outer walls.
The connecting portion is thinned. Also, the claims of the present invention
In paragraph 1, the outer wall of the double wall structure of the joint surface
A seal member is provided only in the portion located between,
A seal member is provided at a portion located between the inner walls of the double wall structure.
Is not provided.
【０００７】本発明の請求項２の構成は、前記溝は、前
記２つのケース部材を締結結合する２つの締結部材に挟
まれる部分に設けることを特徴とするものである。The structure of claim 2 of the present invention is characterized in that the groove is provided in a portion sandwiched by two fastening members for fastening and connecting the two case members.
【０００８】本発明の請求項２においては、前記溝は、
前記２つのケース部材を締結結合する２つの締結部材に
挟まれる部分に設けられており、締結部材のある部分に
は設けられていない。According to a second aspect of the present invention, the groove is
It is provided in a portion sandwiched between two fastening members that fasten and couple the two case members, and is not provided in a portion where the fastening members are provided.
【０００９】[0009]
【発明の効果】本発明の請求項１によれば、接合すべき
２つのケース部材の接合面を含むフランジ部の夫々に該
接合面と直交する方向に延在する溝を対向して設け、該
溝により前記フランジ部の夫々を内壁と外壁との二重壁
構造とするとともに外壁内面を変速機ケース外面より外
側に位置させるようにし、前記二重壁構造の内外壁の連
結部の肉厚を内外壁の肉厚に比べて薄くして前記連結部
を薄肉化したため、変速機内部で発生した力が前記接合
面に内周側から入力した場合、この力は前記接合面の前
記二重壁構造の内壁側の部分を経て前記二重壁構造の内
外壁の連結部に伝達され、この連結部で吸収される。し
たがって、前記接合面の前記二重壁構造の外壁間に位置
する部分に入力される力が大幅に減少する。 According to the first aspect of the present invention, each of the flange portions including the joining surfaces of the two case members to be joined is provided with a groove extending in a direction orthogonal to the joining surface so as to face each other. so as to positioned outside the transmission casing outer surface an outer wall inner surface with a double wall structure of each of the inner and outer walls of the flange portion by the groove, communicating the inner and outer walls of the double wall structure
The thickness of the connecting portion is made thinner than the thickness of the inner and outer walls, and the connecting portion is
When the force generated inside the transmission is input to the joint surface from the inner peripheral side, this force passes through the portion of the joint surface on the inner wall side of the double wall structure and the double wall structure. It is transmitted to the connecting portion of the inner and outer walls of and is absorbed by this connecting portion. Therefore, the force input to the portion of the joint surface located between the outer walls of the double wall structure is significantly reduced .
【００１０】また、本発明の請求項１によれば、前記接
合面の、前記二重壁構造の外壁間に位置する部分のみに
シール部材が設けられているため、変速機に内蔵される
回転部品等により掻き上げられた作動油は前記二重壁構
造の外壁間に位置する部分のシール部材に到達する前に
前記二重壁構造の内壁によって遮られることになり、前
記シール部材を作動油が直撃することが防止される。し
たがって、前記シール部材に入力される作動油のエネル
ギーが減少し、前記二重壁構造の外壁間に位置する部分
のシール部材の耐久性が向上する。 According to claim 1 of the present invention, the connection
Only the part of the mating surface that is located between the outer walls of the double wall structure
Since the seal member is provided, the hydraulic oil scraped up by the rotating parts and the like built in the transmission reaches the double wall structure before reaching the seal member in the portion located between the outer walls of the double wall structure. It is blocked by the inner wall of the structure, and the hydraulic oil is prevented from directly hitting the seal member. Therefore, the energy of the hydraulic oil input to the seal member is reduced, and the durability of the seal member in the portion located between the outer walls of the double wall structure is improved.
【００１１】本発明の請求項２によれば、剛性が高くな
るため変速機内部で発生した力が入力されても支障のな
い部分である、前記２つのケース部材を締結結合する２
つの締結部材のある部分には前記溝を設けないようにし
たため、前記溝を設ける部分は必要な部分のみに制限さ
れることになる。したがって、前記二重壁構造を設ける
ためのコストアップを抑制することができる。According to the second aspect of the present invention, since the rigidity is increased, the two case members, which are parts that do not interfere with the input of the force generated inside the transmission, are fastened and coupled together.
Since the groove is not provided in a portion having one fastening member, the portion provided with the groove is limited to only a necessary portion. Therefore, it is possible to suppress an increase in cost for providing the double wall structure.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づき詳細に説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described with reference to the drawings.
It will be described in detail based on.
【００１３】図１は本発明の第１実施形態の変速機ケー
スの接合構造を示す断面図であり、この図は第１実施形
態の変速機ケースの接合構造を、１つのケース接合面で
切断した断面を示している。 FIG . 1 shows a transmission case according to a first embodiment of the present invention.
FIG. 3 is a cross-sectional view showing the joint structure of the space, which is the first embodiment
The joint structure of the transmission case in the state of
The cross section cut is shown.
【００１４】本実施形態の変速機ケースの接合構造は、
変速機ケースを構成する複数のケース部材の内、例えば
図１のＢ−Ｂ断面図である図２に示すように、接合すべ
き２つのケース部材１，２のフランジ部１ａ，２ａに設
けるものとする。 The joint structure of the transmission case of this embodiment is as follows.
Of the plurality of case members that form the transmission case, for example,
As shown in FIG. 2, which is a sectional view taken along line BB of FIG.
Installed on the flanges 1a, 2a of the two case members 1, 2.
Let's kick.
【００１５】すなわち、図２において、フランジ部１
ａ，２ａは夫々、接合すべき２つのケース部材１，２の
接合面１ｂ，２ｂを含んでおり、これら接合面には夫
々、該接合面と直交する方向に延在する溝３ａ，３ｂが
対向して設けられている。 That is, in FIG. 2, the flange portion 1
a and 2a are respectively the two case members 1 and 2 to be joined.
It includes joint surfaces 1b and 2b, and these joint surfaces include
The grooves 3a and 3b extending in the direction orthogonal to the joint surface are
It is provided facing each other.
【００１６】本実施形態においては、上記溝３ａ，３ｂ
を設けることにより、フランジ部１ａ，２ａの夫々を二
重壁構造としている。すなわち、図２において、フラン
ジ部１ａ，２ａは夫々、溝３ａ，３ｂよりも図示左側の
部分に位置する外壁と、溝３ａ，３ｂよりも図示右側の
部分に位置する内壁とから成り、外部（大気側）に対し
二重壁構造になっている。In this embodiment, the grooves 3a and 3b are provided.
Is provided, each of the flange portions 1a and 2a has a double wall structure. That is, in FIG. 2, each of the flange portions 1a and 2a is composed of an outer wall located on the left side of the grooves 3a and 3b in the drawing and an inner wall located on the right side of the grooves 3a and 3b in the drawing. It has a double wall structure for the atmosphere side).
【００１７】上記溝３ａ，３ｂは、図１に示すように、
２つのケース部材１，２を締結結合する２つの締結部材
（例えばボルト）４に挟まれる部分に設けられている。
このように溝３ａ，３ｂを設ける部位を限定した理由
は、締結部材４の直下の部位は剛性が非常に高くなるた
め、変速機内部で発生した力が入力されたとき、入力＜
耐力の関係が確保されることになり、前記溝を設ける必
要がないからである。The grooves 3a and 3b are, as shown in FIG.
It is provided in a portion sandwiched by two fastening members (for example, bolts) 4 that fasten and connect the two case members 1 and 2.
The reason why the portions where the grooves 3a and 3b are provided is limited in this way is that since the rigidity of the portion immediately below the fastening member 4 is extremely high, when the force generated inside the transmission is input,
This is because the relationship of proof stress is secured and it is not necessary to provide the groove.
【００１８】上記フランジ部１ａ，２ａの接合面１ｂ，
２ｂは夫々、図２に示すように、溝３ａ，３ｂによって
前記二重壁構造の外壁間に位置する部分と前記二重壁構
造の内壁間に位置する部分とに２分割されるが、本実施
形態では、上記２分割された接合面の内、前記二重壁構
造の外壁間に位置する部分のみにシール部材（例えば液
状ガスケット）５を設ける。なお、接合面１ｂ，２ｂの
前記二重壁構造の内外壁の双方にシール部材５を設ける
ように構成すると、変速機内圧が上昇したときその内圧
を溝３ａ，３ｂに逃がすことができないため、内壁のシ
ール部材５が抜けた場合に外壁のシール部材５も抜ける
おそれがあり、好ましくない。The joint surfaces 1b of the flange portions 1a, 2a,
As shown in FIG. 2, each of the 2b is divided into two parts by a groove 3a, 3b into a part located between the outer walls of the double wall structure and a part located between the inner walls of the double wall structure. In the embodiment, the seal member (for example, a liquid gasket) 5 is provided only on a portion of the joint surface divided into two and located between the outer walls of the double wall structure. If the seal members 5 are provided on both the inner and outer walls of the double wall structure of the joint surfaces 1b and 2b, the internal pressure cannot be released to the grooves 3a and 3b when the internal pressure of the transmission increases. If the seal member 5 on the inner wall comes off, the seal member 5 on the outer wall may also come off, which is not preferable.
【００１９】上記シール部材５は、まず、図１に一点鎖
線で示すように接合面１ｂ，２ｂの前記二重壁構造の外
壁間に位置する部分に沿ってビード状に塗布する（その
際、締結部材４のある部位は内周側に迂回するように塗
布する）。次に、ケース部材１，２のフランジ部１ａ，
２ａの接合面１ｂ，２ｂを合わせてから、ケース部材
１，２をボルト４で締結結合することにより、図２に示
すように、接合面１ｂ，２ｂの前記二重壁構造の外壁間
に位置する部分のみにシール部材５が塗布されるように
する。First, the seal member 5 is applied in a bead shape along the portion of the joint surfaces 1b and 2b located between the outer walls of the double wall structure as shown by the dashed line in FIG. 1 (in that case). The part where the fastening member 4 is present is applied so as to bypass the inner peripheral side). Next, the flange portions 1a of the case members 1 and 2,
By joining the joint surfaces 1b and 2b of 2a and then fastening and joining the case members 1 and 2 with bolts 4, as shown in FIG. 2, the joint surfaces 1b and 2b are positioned between the outer walls of the double wall structure. The seal member 5 is applied only to the portion to be applied.
【００２０】次に、本実施形態の作用を説明する。変速
機（例えば自動変速機）の作動時には、変速機内部で発
生した力がケース部材１，２のフランジ部１ａ，２ａの
接合面１ｂ，２ｂに内周側から入力される。ここで、本
実施形態では、上述したようにフランジ部１ａ，２ａの
夫々を二重壁構造とし、前記二重壁構造の内外壁の連結
部の肉厚を内外壁の肉厚に比べて薄くしたため、変速機
内部で発生した力はフランジ部１ａ，２ａの前記二重壁
構造の内壁側の部分を経て前記二重壁構造の内外壁の連
結部に伝達され、この連結部で吸収される。Next, the operation of this embodiment will be described. During operation of the transmission (for example, an automatic transmission), the force generated inside the transmission is input to the joint surfaces 1b and 2b of the flange portions 1a and 2a of the case members 1 and 2 from the inner peripheral side. Here, in the present embodiment, as described above, each of the flange portions 1a and 2a has a double wall structure, and the wall thickness of the connecting portion of the inner and outer walls of the double wall structure is smaller than the wall thickness of the inner and outer walls. Therefore, the force generated inside the transmission is transmitted to the connection portion of the inner and outer walls of the double wall structure through the portion of the flange portions 1a and 2a on the inner wall side of the double wall structure, and is absorbed by this connection portion. .
【００２１】また、変速機ケース内の変速機に内蔵され
る回転部品等の作動により掻き上げられた作動油は、フ
ランジ部１ａ，２ａに形成される前記二重壁構造の内壁
によって遮られることになり、前記二重壁構造の外壁間
に位置する部分に設けたシール部材５を作動油が直撃す
ることが防止される。また、その際、シール部材５を設
けていない部分であるフランジ部１ａ，２ａの接合面１
ｂ，２ｂの内周に入力された作動油のエネルギーは、前
記接合面１ｂ，２ｂの前記二重壁構造の内壁間に位置す
る部分を経て溝３ａ，３ｂ内に流入する際に減少される
ため、フランジ部１ａ，２ａの接合面１ｂ，２ｂの前記
二重壁構造の外壁側の部分に到達するときにはほぼ０に
なる。Further, the hydraulic oil scraped up by the operation of the rotating parts and the like built into the transmission in the transmission case is blocked by the inner wall of the double wall structure formed in the flange portions 1a and 2a. Therefore, it is possible to prevent the hydraulic oil from directly hitting the seal member 5 provided in the portion located between the outer walls of the double wall structure. Further, at that time, the joint surface 1 of the flange portions 1a, 2a, which is a portion where the seal member 5 is not provided,
The energy of the hydraulic oil input to the inner circumferences of b and 2b is reduced when flowing into the grooves 3a and 3b through the portions of the joint surfaces 1b and 2b located between the inner walls of the double wall structure. Therefore, when reaching the outer wall side portion of the double wall structure of the joint surfaces 1b and 2b of the flange portions 1a and 2a, it becomes almost zero.
【００２２】ところで、本実施形態の変速機ケースの接
合構造におけるシール部材５によるシールにおいては、
変速機内部の飛散油のエネルギーと変速機内圧（通常は
発生しない）との和により決定されるシール入力を上記
内壁および溝３ａ，３ｂによって低減し、前記二重壁構
造の内外壁の連結部を薄肉化してシール面（接合面１
ｂ，２ｂの前記二重壁構造の外壁側の部分）の変形を抑
制することにより該シール面の剛性により決定されるシ
ール耐力を高めたため、入力＜耐力の関係を確保するこ
とができる。その結果、前記二重壁構造の外壁間に位置
する部分に設けたシール部材５により形成されるシール
面に入力される力が減少するから、シール部材５の耐久
性を大幅に向上させることができ、油漏れを確実に防止
することができる。By the way, in the seal by the seal member 5 in the joint structure of the transmission case of the present embodiment,
The seal input, which is determined by the sum of the energy of splashed oil inside the transmission and the internal pressure of the transmission (which is not normally generated), is reduced by the inner wall and the grooves 3a and 3b, and the connecting portion between the inner and outer walls of the double-wall structure. Of the seal surface (joint surface 1
By suppressing the deformation of parts (b, 2b on the outer wall side of the double wall structure), the seal proof strength determined by the rigidity of the seal surface is increased, so that the relationship of input <proof strength can be secured. As a result, the force input to the seal surface formed by the seal member 5 provided between the outer walls of the double wall structure is reduced, and thus the durability of the seal member 5 can be significantly improved. It is possible to reliably prevent oil leakage.
【００２３】さらに、本実施形態の変速機ケースの接合
構造を実際に適用するに当たり、入力＞耐力となってシ
ール部材の変形が大きくなる部位のみに限定して適用す
ればよいため、前記二重壁構造を設けることに起因する
コストアップを最小限に抑制することができる。Further, when actually applying the joint structure of the transmission case of the present embodiment, it is necessary to limit the application to only a portion where input> proof and the deformation of the seal member becomes large, so that the double structure It is possible to minimize the cost increase due to the provision of the wall structure.
【００２４】なお、本実施形態では、２つのケース部材
１，２を締結結合する２つの締結部材４に挟まれる部分
の内、図１に示す部分に溝３ａ，３ｂを設けるようにし
たが、これに限定されるものではなく、前記二重壁構造
を設ける部位の剛性に応じて、溝３ａ，３ｂを設ける部
分を適宜縮小または拡大してもよい。In this embodiment, the grooves 3a and 3b are provided in the portion shown in FIG. 1 among the portions sandwiched by the two fastening members 4 which fasten and connect the two case members 1 and 2. The present invention is not limited to this, and the portions where the grooves 3a and 3b are provided may be appropriately reduced or enlarged depending on the rigidity of the portion where the double wall structure is provided.
【図１】本発明の第１実施形態の変速機ケースの接合構
造を示す図である。FIG. 1 is a diagram showing a joint structure of a transmission case according to a first embodiment of the present invention.
【図２】図１のＢ−Ｂ断面図である。FIG. 2 is a sectional view taken along line BB in FIG.
【図３】（ａ）は従来例の変速機ケースの接合構造を１
つのケース接合面で切断した断面を示す図であり、
（ｂ）はそのＡ−Ａ断面図である。FIG. 3A is a view showing a joint structure of a transmission case of a conventional example.
It is a figure showing a section cut at two case joint surfaces,
(B) is the AA sectional view.
１，２ ケース部材 １ａ，２ａ フランジ部 １ｂ，２ｂ 接合面 ３ａ，３ｂ 溝 ４ 締結部材（ボルト） ５ シール部材（液状ガスケット） 1, 2 case members 1a, 2a Flange part 1b, 2b Joining surface 3a, 3b groove 4 Fastening members (bolts) 5 Seal member (liquid gasket)
フロントページの続き (56)参考文献 特開 昭60−73170（ＪＰ，Ａ) 特開 平９−137859（ＪＰ，Ａ) 実開 昭63−20563（ＪＰ，Ｕ) 実開 昭62−32262（ＪＰ，Ｕ) 実開 昭61−187945（ＪＰ，Ｕ) 実開 昭60−3121（ＪＰ，Ｕ) 実開 昭55−12163（ＪＰ，Ｕ) 実開 平４−105657（ＪＰ，Ｕ) 実開 平３−100662（ＪＰ，Ｕ) 実開 平１−133569（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16H 57/00 - 57/12 F16J 15/00 - 15/14 Continuation of the front page (56) Reference JP-A-60-73170 (JP, A) JP-A-9-137859 (JP, A) Actually opened 63-20563 (JP, U) Actually opened 62-32262 (JP , U) Actually opened 61-187945 (JP, U) Actually opened 60-3121 (JP, U) Actually opened 55-12163 (JP, U) Actually opened 4-105657 (JP, U) Actually opened 3-100662 (JP, U) Actual Kaihei 1-133569 (JP, U) (58) Fields surveyed (Int.Cl. 7 , DB name) F16H 57/00-57/12 F16J 15/00-15 / 14
Claims (2)
のケース部材間を接合する、変速機ケースの接合構造に
おいて、 接合すべき２つのケース部材の接合面を含むフランジ部
の夫々に、該接合面と直交する方向に延在する溝を対向
して設け、 該溝により前記フランジ部の夫々を内壁と外壁との二重
壁構造とするとともに外壁内面を変速機ケース外面より
外側に位置させるようにし、 前記二重壁構造の内外壁の連結部の肉厚を内外壁の肉厚
に比べて薄くして前記連結部を薄肉化し、 前記接合面の、前記二重壁構造の外壁間に位置する部分
のみにシール部材を設ける ことを特徴とする変速機ケー
スの接合構造。1. A joint structure for a transmission case, wherein the case members of a transmission case composed of a plurality of case members are joined to each other, to each of the flange portions including the joining surfaces of the two case members to be joined. Grooves extending in a direction orthogonal to the surface are provided so as to face each other, and each of the flange portions has a double-wall structure of an inner wall and an outer wall, and the inner surface of the outer wall is positioned outside the outer surface of the transmission case. The thickness of the connecting portion of the inner and outer walls of the double wall structure
Said connecting portion thinned by thinner than the, of the joining surface, located between the outer wall of said double wall structure portion
The joint structure of the transmission case is characterized in that the seal member is provided only on the joint.
合する２つの締結部材に挟まれる部分に設けることを特
徴とする請求項１記載の変速機ケースの接合構造。2. The joint structure for a transmission case according to claim 1 , wherein the groove is provided in a portion sandwiched by two fastening members that fasten and couple the two case members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10844197A JP3508462B2 (en) | 1997-04-25 | 1997-04-25 | Transmission case joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10844197A JP3508462B2 (en) | 1997-04-25 | 1997-04-25 | Transmission case joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10299870A JPH10299870A (en) | 1998-11-13 |
| JP3508462B2 true JP3508462B2 (en) | 2004-03-22 |
Family
ID=14484863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10844197A Expired - Fee Related JP3508462B2 (en) | 1997-04-25 | 1997-04-25 | Transmission case joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3508462B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4627240B2 (en) * | 2005-10-14 | 2011-02-09 | ジヤトコ株式会社 | 4-wheel drive transmission housing structure |
| KR100748665B1 (en) * | 2005-12-10 | 2007-08-10 | 현대자동차주식회사 | Structure of case of manual transmission |
| JP5381502B2 (en) | 2009-08-25 | 2014-01-08 | トヨタ自動車株式会社 | Seal structure using liquid gasket |
| DE102012223042A1 (en) * | 2012-12-13 | 2014-06-18 | Federal-Mogul Wiesbaden Gmbh | Plain bearing composite material |
-
1997
- 1997-04-25 JP JP10844197A patent/JP3508462B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10299870A (en) | 1998-11-13 |
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