JPH0351156U

JPH0351156U -

Info

Publication number: JPH0351156U
Application number: JP11118289U
Authority: JP
Priority date: 1989-09-22
Filing date: 1989-09-22
Publication date: 1991-05-17

Description

[Brief explanation of drawings]

第１図乃至第６図は本考案の実施例に係るエン
ジンのクランクケース下半部フレームを説明する
図で、第１図は下半部フレームの斜視図、第２図
は下半部フレームの平面図、第３図Ａは下半部フ
レームの底面図、第３図Ｂは第３図ＡのＢ−Ｂ線
断面図、第３図Ｃは第３図ＡのＣ−Ｃ線断面図、
第４図はエンジンの縦断面正面図、第５図はエン
ジンの縦断面側面図、第６図はエンジンの斜視図
であり、第７図Ａは従来技術に係るクランクケー
ス下半部フレームの平面図、第７図Ｂは第７図Ａ
のＢ−Ｂ線断面図である。１……エンジン、２……クランクケース、３…
…下半部フレーム、４……両側壁、５……前側壁
、６……中間軸受壁、７……後側壁、８……補強
板取付面、９……防油兼補強板、１０……固定手
段、１１……フレーム下端面、１２……９の最下
面、１３……９の両側縁、１４……オイル復帰間
隙、１５……オイルストレーナ、１６……吸上げ
パイプ、１７……取付けボス。 1 to 6 are views for explaining the lower half frame of an engine crankcase according to an embodiment of the present invention, FIG. 1 is a perspective view of the lower half frame, and FIG. 2 is a perspective view of the lower half frame. A plan view, FIG. 3A is a bottom view of the lower half frame, FIG. 3B is a sectional view taken along line B-B in FIG. 3A, FIG. 3C is a sectional view taken along line C-C in FIG. 3A,
FIG. 4 is a longitudinal sectional front view of the engine, FIG. 5 is a longitudinal sectional side view of the engine, FIG. 6 is a perspective view of the engine, and FIG. 7A is a plan view of the lower half frame of the crankcase according to the prior art. Figure 7B is Figure 7A
FIG. 1...Engine, 2...Crankcase, 3...
...lower half frame, 4...both side walls, 5...front wall, 6...middle bearing wall, 7...rear wall, 8...reinforcement plate mounting surface, 9...oil-proof/reinforcement plate, 10... ...Fixing means, 11... Lower end surface of frame, 12... Bottom surface of 9, 13... Both side edges of 9, 14... Oil return gap, 15... Oil strainer, 16... Suction pipe, 17... installation boss.

Claims

[Claims for Utility Model Registration] 1. A front wall 5, an intermediate bearing wall 6, and a rear wall 7 are integrated between the left and right side walls 4, 4 of the lower half frame 3 that constitutes the lower half of the crankcase 2 of the engine 1. In the lower half frame of the engine crankcase formed by mounting on the frame, a reinforcing plate mounting surface 8 is formed at the lower end of each of the front side wall 5, intermediate bearing wall 6, and rear side wall 7, and these reinforcing plate mounting surfaces Oil-proof and reinforcing plate 9 throughout 8
A lower half frame of a crankcase of an engine, characterized in that the lower half frame of a crankcase of an engine is disassembleably fixed by a fixing means 10 by abutting the frame. 2 The reinforcement plate mounting surfaces 8 of the front wall 5, intermediate bearing wall 6, and rear wall 7 are connected to the left and right side walls 4, 4, and the front wall 5.
and the rear side wall 7 is formed at a higher position than the lower end surface 11 of the frame, so that the lowermost surface 12 of the oil-proof and reinforcing plate 9 is located at the same height as the lower end surface 11 of the frame, or higher than the lower end surface 11 of the frame. 2. The engine crankcase lower half frame according to claim 1, wherein 3. An oil return gap 14 is formed between both side edges 13 of the oil-proof/reinforcing plate 9 and the left and right side walls 4, 4 of the lower half frame 3, and a suction pipe of the oil strainer 15 is inserted into this oil return gap 14. The engine crankcase lower half frame according to claim 1 or 2, characterized in that sixteen mounting bosses (17) are formed.