JPH0374187U - - Google Patents

Description

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

第１図は本考案に係る渦電流制動機の１例を示
す側面図、第２図はこの渦電流制動機の矢印−
に沿つた断面図、第３図はこの渦電流制動機に
用いる電磁石の芯部材を示す側面図、第４図は本
考案に係る渦電流制動機の他の例を示す概略断面
図、第５図は従来の渦電流制動機を示す断面図で
ある。 １……回転ドラム、４……シヤフト、６……ブ
ラケツト、１０……電磁石、１１……芯部材、１
２……柱状部、１３……二股部、１５……コイル
。 FIG. 1 is a side view showing an example of an eddy current brake according to the present invention, and FIG. 2 is a side view showing an example of the eddy current brake.
3 is a side view showing the core member of the electromagnet used in this eddy current brake, FIG. 4 is a schematic sectional view showing another example of the eddy current brake according to the present invention, and FIG. The figure is a sectional view showing a conventional eddy current brake. DESCRIPTION OF SYMBOLS 1... Rotating drum, 4... Shaft, 6... Bracket, 10... Electromagnet, 11... Core member, 1
2...Columnar part, 13...Bifurcated part, 15...Coil.

Claims (1)

【実用新案登録請求の範囲】 １ 強磁性材料で形成した回転体および電磁石を
有し、前記電磁石から発生する磁束を横切るよう
に前記回転体を配設し、前記回転体内に発生する
渦電流により前記回転体の回転を制動するように
構成した渦電流制動機において、 前記電磁石を構成する芯部材を、コイルが巻き
付けられる柱状部とこの柱状部の端部に一体に繋
がるとともに二股に分岐して延びた二股部とから
Ｙ字状に形成し、この二股部の端面を前記回転体
の表面に近接対向せしめて前記電磁石を配設した
ことを特徴とする渦電流制動機。 ２ 前記柱状部の軸直角断面の面積Ａが、前記二
股部における延長方向に直角な各断面の面積Ｂの
和２Ｂとほぼ等しくなるように前記芯部材を形成
したことを特徴とする請求項第１項記載の渦電流
制動機。[Claims for Utility Model Registration] 1. A system comprising a rotating body and an electromagnet made of a ferromagnetic material, the rotating body being disposed so as to cross the magnetic flux generated from the electromagnet, and an eddy current generated within the rotating body In the eddy current brake configured to brake the rotation of the rotating body, the core member constituting the electromagnet is integrally connected to a columnar portion around which a coil is wound and an end of this columnar portion, and is branched into two. An eddy current brake, characterized in that it is formed into a Y-shape from two extended forked parts, and the electromagnet is disposed with the end face of the forked part closely facing the surface of the rotating body. 2. The core member is formed so that the area A of the cross section perpendicular to the axis of the columnar portion is approximately equal to the sum 2B of the area B of each cross section perpendicular to the extension direction of the bifurcated portion. The eddy current brake according to item 1.