JPH0466390U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の一部の縦断面図、
第２図は本考案の他の実施例の縦断面図、第３図
は従来例の縦断面図である。 １０……回転軸、１１……クランク部、１１ａ
，１１ｂ……スラスト面、１２……ローター、１
３……シリンダー、１４……上軸受、１５，１７
……両端開口部、１６……下軸受、１６ａ……上
端面、１８，２０……円周間隙、Ｙ……包囲範囲
。 FIG. 1 is a longitudinal sectional view of a part of an embodiment of the present invention;
FIG. 2 is a vertical cross-sectional view of another embodiment of the present invention, and FIG. 3 is a vertical cross-sectional view of a conventional example. 10...Rotating shaft, 11...Crank part, 11a
, 11b... Thrust surface, 12... Rotor, 1
3... Cylinder, 14... Upper bearing, 15, 17
... Openings at both ends, 16 ... Lower bearing, 16a ... Upper end surface, 18, 20 ... Circumferential gap, Y ... Encircling range.

Claims (1)

【実用新案登録請求の範囲】 (1) 電動機の回転軸にクランク部を設け、この
クランク部に嵌合するローターをシリンダーに収
納し、このシリンダーの両端開口部にそれぞれ前
記回転軸の上軸受と下軸受を固定し、前記両軸受
に前記クランク部のスラスト面を接触させてなる
ものであつて、 前記スラスト面に隣接する円周間隙を、前記回
転軸と前記上軸受の間に、前記上軸受の包囲範囲
の1/2以上の範囲に形成したことを特徴とする回
転圧縮機。 (2) 前記クランク部のスラスト面を、前記下軸
受の上端面に対して２〜３．５ミリメートルのリ
ング幅で接触させてなることを特徴とする請求項
１記載の回転圧縮機。[Claims for Utility Model Registration] (1) A crank part is provided on the rotating shaft of the electric motor, a rotor that fits into the crank part is housed in a cylinder, and an upper bearing and an upper bearing of the rotating shaft are installed in openings at both ends of the cylinder. A lower bearing is fixed, and a thrust surface of the crank part is brought into contact with both bearings, and a circumferential gap adjacent to the thrust surface is provided between the rotating shaft and the upper bearing. A rotary compressor characterized in that the area is formed in an area that is more than 1/2 of the enclosing area of a bearing. (2) The rotary compressor according to claim 1, wherein the thrust surface of the crank portion is in contact with the upper end surface of the lower bearing with a ring width of 2 to 3.5 mm.