JPS63100115U

JPS63100115U -

Info

Publication number: JPS63100115U
Application number: JP19501486U
Authority: JP
Priority date: 1986-12-18
Filing date: 1986-12-18
Publication date: 1988-06-29

Description

[Brief explanation of the drawing]

第１図Ａは本考案の実施例を示すエンドミルの
斜視図、Ｂは底面の拡大図、Ｃは部分側面図、第
２図Ａは同上エンドミルの一部切欠した側面図、
Ｂはギヤツシユ―′部分の拡大断面図、Ｃは
ギヤツシユ―′部分の拡大断面図、第３図Ａ
は在来品の側面図、Ｂはギヤツシユ―′の部
分断面図、Ｃはギヤツシユ―′の部分断面図
、Ｄは底面図である。４……底刃、５……ギヤツシユ、６……切れ刃
、７……頂点、８……回転中心、９……開き角、
１５……始端、Ｒ_１，Ｒ_２……丸み半径。 FIG. 1A is a perspective view of an end mill showing an embodiment of the present invention, B is an enlarged bottom view, C is a partial side view, and FIG. 2A is a partially cutaway side view of the same end mill.
B is an enlarged cross-sectional view of the gear '' portion, C is an enlarged cross-sectional view of the gear '' portion, Fig. 3A
1 is a side view of a conventional product, B is a partial sectional view of the gear shaft', C is a partial sectional view of the gear shaft', and D is a bottom view. 4... Bottom blade, 5... Gear shaft, 6... Cutting edge, 7... Vertex, 8... Center of rotation, 9... Opening angle,
15...Starting end, _R1 , _R2 ...Round radius.

補正昭６２．４．２図面の簡単な説明を次のように補正する。明細書中、第１１頁第２０行目乃至第１２頁第
６行目に「第２図Ａは…中略…Ｄは底面図である
。」とあるを「第２図は同上エンドミルの一部切
欠した側面図及び該図に示したギヤツシユ―
′部分のギヤツシユ―′部分の拡大断面図、
第３図Ａは在来のエンドミルの一部切欠した側面
図及び該図に示したギヤツシユ―′と―
′部分断面図、第３図Ｂは同上底面図である。」
と補正する。Amendment April 2, 1982 The brief description of the drawing is amended as follows. In the specification, from line 20 on page 11 to line 6 on page 12, it is stated that ``Figure 2 A is omitted...D is a bottom view.'' A cutaway side view and the gear shown in the figure.
An enlarged cross-sectional view of the gear ’ part,
Figure 3A is a partially cutaway side view of a conventional end mill and the gears shown in the figure.
'A partial sectional view, and FIG. 3B is a top bottom view of the same. ”
and correct it.

Claims

[Scope of utility model registration request]

In an end mill in which the starting end of the cutting edge is located at the center of rotation, and each cutting edge has a plurality of bottom edges symmetrically formed with each other, the rounding radius at the apex of the gear opening angle is made the smallest on the side of the center of rotation, An end mill with a bottom blade that is characterized by a blade that gradually increases in size toward the outer circumference.