JPH02130418U

JPH02130418U -

Info

Publication number: JPH02130418U
Application number: JP3921889U
Authority: JP
Priority date: 1989-04-04
Filing date: 1989-04-04
Publication date: 1990-10-26

Description

[Brief explanation of drawings]

第１図Ａ，Ｂは本考案の第一実施例を示すもの
であり、同図Ａがその一部切欠き正面図で同図Ｂ
が同じく一部切欠き底面図である。第２図及び第
３図は本考案の第二及び第三実施例を示す各々の
一部切欠き要部正面図である。第４図はシリンダ
ブロツクの斜視図である。第５図Ａ，Ｂは従来例
を示すものであり、同図Ａがその要部正断面図で
、同図Ｂが同じく要部底面部である。また、図面中１はシリンダブロツク、２は嵌合
座部、３はベアリングキヤツプ、４は取付け孔、
６Ａはスタツドボルト、８はドウエルピン、８Ａ
はブシユノツク、８Ｂは位置決め用軸部、９は係
合部である。 Figures 1A and 1B show the first embodiment of the present invention, where Figure A is a partially cutaway front view and Figure B is a partially cutaway front view.
is also a partially cutaway bottom view. FIGS. 2 and 3 are partially cutaway front views of essential parts of second and third embodiments of the present invention, respectively. FIG. 4 is a perspective view of the cylinder block. 5A and 5B show a conventional example, in which FIG. 5A is a front sectional view of the main part, and FIG. 5B is a bottom view of the main part. In addition, in the drawing, 1 is a cylinder block, 2 is a fitting seat, 3 is a bearing cap, 4 is a mounting hole,
6A is stud bolt, 8 is dowel pin, 8A
8B is a positioning shaft portion, and 9 is an engaging portion.

Claims

[Claims for Utility Model Registration] (1) A fitting seat formed on a cylinder block, and a bearing cap whose both ends in a direction perpendicular to the axis of the crankshaft are closely fitted into the fitting seat. In the engine, a rod-shaped projection is provided on one of the opposing surfaces of the cylinder block and the bearing cap, and the rod-shaped projection is fitted into the other of the opposing surfaces with a degree of freedom only in a direction perpendicular to the axis of the crankshaft. An engine bearing cap positioning device characterized by forming a joint. (2) In an engine having a fitting seat formed on a cylinder block, and a bearing cap having both ends in a direction perpendicular to the axis of the crankshaft tightly fitted into the fitting seat, the fitting seat a stud bolt with one end screwed into the bearing cap, a hole formed in the bearing cap through which the other end of the stud bolt passes, and a stud bolt formed in the intermediate shaft portion of the stud bolt near the fitting seat. A positioning shaft portion having a large diameter that is the same diameter as the back hole, and an opening on the mating seat side of the back hole, so that the positioning shaft portion has a degree of freedom only in the direction perpendicular to the axis of the crankshaft. An engine bearing cap positioning device comprising: an engaging portion into which the bearing cap is fitted.