JPS62126692U - - Google Patents

Description

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

図面は本考案の一実施例を示すもので、第１図
は本考案を実施したオイルポンプの一例を示す縦
断面図、第２図はオイルボルトの拡大断面図、第
３図は同底面図、第４図は変更実施例の第２図と
同様の図である。 尚図面中２１はボルト、２２は軸部、２３は頭
部、２４は油路、２５は閉塞端、２６は吐出口、
２７は油路の開口、２８，２９はオリフイス形成
部材である。 The drawings show an embodiment of the present invention. Fig. 1 is a longitudinal sectional view showing an example of an oil pump implementing the invention, Fig. 2 is an enlarged sectional view of an oil bolt, and Fig. 3 is a bottom view of the same. , FIG. 4 is a diagram similar to FIG. 2 of a modified embodiment. In the drawing, 21 is a bolt, 22 is a shaft, 23 is a head, 24 is an oil passage, 25 is a closed end, 26 is a discharge port,
27 is an opening of an oil passage, and 28 and 29 are orifice forming members.

Claims (1)

【実用新案登録請求の範囲】 １ 頭部側を閉塞し、軸部の端部方向に開口する
盲穴状の軸方向への油路を備え、軸部の一部に径
方向への吐出口を備えるボルトと、前記軸方向へ
の油路に遊嵌し、油路との間の隙間を形成し、油
路内保持されるオリフイス形成部材からなり、該
オリフイス形成部材を前記ボルトよりも熱膨脹の
大きい物質で形成するようにしたことを特徴とす
るオイルボルト。 ２ 前記オリフイス形成部材は閉塞端側のボール
とこれに先端を当接させるようにした円柱状部材
とで構成した前記実用新案登録請求の範囲第１項
のオイルボルト。 ３ 前記オリフイス形成部材は複数のボールから
なる前記実用新案登録請求の範囲第１項のオイル
ボルト。[Claims for Utility Model Registration] 1. A blind hole-shaped oil passage in the axial direction that closes the head side and opens toward the end of the shaft, and a radial discharge port in a part of the shaft. and an orifice forming member that loosely fits into the oil passage in the axial direction, forms a gap with the oil passage, and is held within the oil passage, and the orifice forming member is thermally expanded more than the bolt. An oil bolt characterized by being made of a material with a large size. 2. The oil bolt according to claim 1, wherein the orifice forming member is constituted by a ball on the closed end side and a cylindrical member whose tip is brought into contact with the ball. 3. The oil bolt according to claim 1, wherein the orifice forming member comprises a plurality of balls.