JPS5962913U

JPS5962913U - Core drill oil supply mechanism

Info

Publication number: JPS5962913U
Application number: JP15661882U
Authority: JP
Inventors: 昌明宮永
Original assignee: 株式会社ミヤナガ
Priority date: 1982-10-16
Filing date: 1982-10-16
Publication date: 1984-04-25
Also published as: JPS6221381Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の給油機構を備えたコアドリルを示す一部
断面正面図、第２図〜第４図はこの考案の実施例を示し
、第２図は右半分を縦断面図で表わした正面図、第３図
は第２図の■−■線断面図、第４図は他の実施例を示す
右半分を縦断面図で表わした正面図である。１・・・コアドリル本体、２・・・コアドリル本体の上
半部、２ａ・・・上半部側周壁、３・・・コアドリル本
体の下半部、３ａ・・・下半部側周壁、４・・・シャン
ク、５・・・切屑排出溝、６・・・刃体部、７・・・刃
片、７ａ・・・穿孔刃、８・・・センターピン、９・・
・頭部（係合部）、１０・・・縦長孔、１１・・・小径
孔、１２・・・通油溝、１３・・・スプリング、１４・
・・止ねじ、１５・・・環体、−１６・・・環状溝、１
７・・・給油用端子、１８・・・ＯＩＪソング１９・・
・ナツト、２０・・・ねじ部、２１・・・廻止杆、２２
・・・給油孔、２３・・・給油管、２４・・・螺旋溝、
２５・・・止リング。Fig. 1 is a partially sectional front view showing a core drill equipped with a conventional oil supply mechanism, Figs. 2 to 4 show examples of this invention, and Fig. 2 is a front view showing the right half in longitudinal section. FIG. 3 is a sectional view taken along the line ■--■ in FIG. 2, and FIG. 4 is a front view showing a right half of another embodiment in a longitudinal sectional view. DESCRIPTION OF SYMBOLS 1... Core drill main body, 2... Upper half of core drill main body, 2a... Upper half side peripheral wall, 3... Lower half of core drill main body, 3a... Lower half side peripheral wall, 4 ...Shank, 5...Chip discharge groove, 6...Blade body portion, 7...Blade piece, 7a...Drilling blade, 8...Center pin, 9...
・Head (engaging part), 10... Vertical hole, 11... Small diameter hole, 12... Oil passage groove, 13... Spring, 14...
... Set screw, 15 ... Annular body, -16 ... Annular groove, 1
7...Refueling terminal, 18...OIJ song 19...
・Nut, 20... Threaded part, 21... Rotating rod, 22
... Oil supply hole, 23 ... Oil supply pipe, 24 ... Spiral groove,
25...stop ring.

Claims

[Claims for Utility Model Registration] A plurality of drilling blades are formed at the lower end of a core drill body with a shank at the upper end and an opening at the bottom, penetrating from the inner end of the hollow part of the body to the upper end of the shank. A vertically elongated hole having a small diameter hole is drilled, an oil passage groove is formed at intervals of the small diameter hole, and a center pin having a retaining portion at an upper end that can be engaged with the upper end of the small diameter hole is inserted into the vertically elongated hole. The tip of the center pin protrudes from the bottom end of the main body by inserting the spring into the vertical hole, and the spring for biasing the center pin downward is inserted into the vertical hole. an annular body having a protruding oil supply terminal communicating with the annular groove, disposed close to the upper end of the core drill body so as to be rotatable on the shank, and prevented from being removed by a nut screwed onto the shank; An oil supply mechanism for a core drill, characterized in that an oil supply hole is bored in an annular mounting portion of the shank to communicate the longitudinal hole and the annular groove.