JPS6443235U

JPS6443235U -

Info

Publication number: JPS6443235U
Application number: JP13927387U
Authority: JP
Priority date: 1987-09-11
Filing date: 1987-09-11
Publication date: 1989-03-15

Description

[Brief explanation of the drawing]

第１〜１１図は本考案に係る電磁クラツチの第
１実施例を示す図であり、第１図はその全体構成
を示す正面断面図、第２図は第１図の―矢視
図、第３図はその要部断面図、第４図はそのブツ
シユの正面断面図、第５図は第４図の―矢視
図、第６図はそのブツシユの他の態様を示す断面
図、第７図はそのボビンを示す斜視図、第８図は
第７図の―矢視図、第９図は第８図の―
部分矢視図、第１０図はその樹脂部材を射出成形
する金型の構成を示す要部断面図、第１１図は第
１０図の―矢視図、第１２図は本考案に
係る電磁クラツチの第２実施例を示すその要部断
面図であり、第１３，１４図はそれぞれ本考案に
係る電磁クラツチの第３，４実施例を示すそのブ
ツシユの正面断面図である。第１５〜１７図は従
来の電磁クラツチを示す図であり、第１５図はそ
の要部断面図、第１６図は第１５図の―
矢視図、第１７図は第１５図の―断面図
である。１１……励磁コイル、１２……ボビン、１３…
…リード線、１４……フイールドコア、１４ａ…
…引出し孔、１５……樹脂部材、１６……ブツシ
ユ、１６ａ……貫通孔。 1 to 11 are diagrams showing a first embodiment of the electromagnetic clutch according to the present invention, in which FIG. 1 is a front sectional view showing the overall configuration, and FIG. 3 is a sectional view of a main part thereof, FIG. 4 is a front sectional view of the bushing, FIG. 5 is a view taken along the - arrow in FIG. The figure is a perspective view showing the bobbin, Figure 8 is a view from the direction of the arrow in Figure 7, and Figure 9 is a view of Figure 8.
FIG. 10 is a cross-sectional view of a main part showing the structure of a mold for injection molding the resin member, FIG. 11 is a view along the - arrow of FIG. 10, and FIG. 12 is a view of the electromagnetic clutch according to the present invention. 13 and 14 are front sectional views of a bush showing third and fourth embodiments of the electromagnetic clutch according to the present invention, respectively. FIG. 15 to 17 are diagrams showing a conventional electromagnetic clutch. FIG. 15 is a sectional view of the main part, and FIG.
The arrow view and FIG. 17 are cross-sectional views taken in FIG. 15. 11...excitation coil, 12...bobbin, 13...
...Lead wire, 14...Field core, 14a...
...Drawer hole, 15...Resin member, 16...Button, 16a...Through hole.

Claims

[Claims for Utility Model Registration] (1) An excitation coil that is wound around a bobbin and has a lead wire that protrudes outward, and a draw-out hole in which the bobbin and excitation coil are housed, and into which the lead wire of the excitation coil is inserted. A field core formed with a resin member, a resin member that covers a bobbin around which an excitation coil is wound and is filled between the bobbin and the field core and fixes the bobbin and the excitation coil to the field core, and a resin member that fixes the bobbin and the excitation coil to the field core. A bushing formed with a through hole to be inserted,
The bush is formed to have a smaller diameter than the lead-out hole of the field core, and the bush and the lead wire are inserted through the lead-out hole of the field core to the opposite side from the lead-out hole of the field core together with the lead wire of the excitation coil passed through the bush. An electromagnetic clutch characterized by being integrally connected to a field core. (2) The electromagnetic clutch according to claim 1, wherein either a convex portion or a concave portion that engages with a resin member is formed on the outer periphery of the bush. (3) The electromagnetic clutch according to claim 1, wherein the through hole of the bushing is provided with a tapered portion on the excitation coil side that decreases toward the excitation coil. (4) The electromagnetic clutch according to claim 1, wherein the bushing is made of a flexible member. (5) The electromagnetic clutch according to claim 1, which has been registered as a utility model, characterized in that a plate is provided on the end face of the bush facing the excitation coil so as to sandwich the bush and prevent deformation of the bush.