JPS58137725U

JPS58137725U - Drill screw for mounting corrugated asbestos slate, etc.

Info

Publication number: JPS58137725U
Application number: JP3532182U
Authority: JP
Inventors: 鈴木　温雄; 康友鈴木
Original assignee: Individual
Current assignee: Individual
Priority date: 1982-03-13
Filing date: 1982-03-13
Publication date: 1983-09-16

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の正面図、第２図は平面図、第３図は下
面図、第４図は拡大下面図、第５図は円錐形部の拡大斜
視図、第６図は取付部材と波形石綿スレートの取付状態
の説明図である。１：シャンク、２：頭部、３：鍔、４：皿形部、５：無
ねじ部、６：斜ねじ部、７：逆ねじ部、８：正ねじ部、
９：円錐形部、１０：ポイント、１１，１２゜１３ニス
ロツト、１４：第１の側面、１４ａ：切刃、１４ｂ：噴
材刃、１５：第２の側面、１５ａ：切刃、１６、　１７
．　１８：二番の逃げ面。Figure 1 is a front view of the present invention, Figure 2 is a plan view, Figure 3 is a bottom view, Figure 4 is an enlarged bottom view, Figure 5 is an enlarged perspective view of the conical part, and Figure 6 is the mounting member. FIG. 3 is an explanatory diagram of the installed state of the corrugated asbestos slate. 1: Shank, 2: Head, 3: Tsuba, 4: Countersunk part, 5: Non-threaded part, 6: Oblique threaded part, 7: Reverse threaded part, 8: Right threaded part,
9: Conical part, 10: Point, 11, 12° 13 Nislot, 14: First side, 14a: Cutting blade, 14b: Spray blade, 15: Second side, 15a: Cutting blade, 16, 17
．． 18: Second escape surface.

Claims

[Scope of utility model registration request]

A shank 1 having a head 2 and a collar 3 integrally formed I7, a dish-shaped part 4 having a slope of about 60° above the shank 1 below the collar 3, and a non-threaded part 5 toward the dish-shaped part 4. A diagonal threaded portion 6 has a sharp cutting edge portion 6a at the tip formed by forming a diagonal thread, and a reverse threaded portion 7 having an outer diameter smaller than the outer diameter of the diagonal threaded portion 6 below the diagonal threaded portion 6; Below the threaded part 7, there is a normal threaded part 8 which has an outer diameter d' that is approximately the same as the outer diameter of the reverse threaded part 7, and which is pivotally inserted into a prepared hole of the mounting member made with a drilled screw at the tip; A conical tip 9 formed at the distal end of the shank 1 below the section 8 and centered on a point l-10, and slots 11 provided in the conical tip 9 at equal intervals about the point 10; 12.1
3, and the first side surface 14 of each of these slots 11, 12. a second side surface 15 of the slot located at a position further outward than 10 and adjacent to each other at that position;
The first side 14 of the slot 11, 12, 13 in the conical tip 9, which intersects the inner tip of the conical tip 9 and includes the point 10, is a cutting edge 14a and a propellant blade 14b connected to this cutting edge 14a. The tip of each propellant blade 14b is connected to the point 10 by sandwiching the slot 11°12. The second flank 16 is located higher than the tip of the side surface 15 and is formed between the cutting edge 14a and the injection material blade 14b and the outer end of the second side surface 15 of the slot 13 adjacent to each other. A second flank 17 is formed between the cutting edge 14a and the injection material blade 14b and the outer end of the second side surface 15 of the slot 11 adjacent to each other, and the cutting edge 15a of the first side surface 14 of the slot 12 is formed. A second flank 18 is formed between the injection blade 14b and the outer end of the second side surface 15 of the adjacent slot 12, and these second flanks 1
The inner ends of 6, 17, and 18 are joined to each other at point 10, and the cutting edges of three propellant blades 14b are joined to form a propeller shape.This is a drilled screw for attaching corrugated slate, etc.