JPS6124994U

JPS6124994U - Cartridge heater

Info

Publication number: JPS6124994U
Application number: JP10864184U
Authority: JP
Inventors: 信英宇留野
Original assignee: 株式会社日立ホームテック
Priority date: 1984-07-18
Filing date: 1984-07-18
Publication date: 1986-02-14

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図は本考案のカートリッジヒータの断面図、第２図
は同カートリッジヒータに使用するガイドボビンの正面
図、第３図はガイドポビンの断面図、第４図は従来のカ
ートリッジヒータの断面図、第５図は同カートリッジヒ
ータに使用のカイドボビンの正面図を示すものである。図において、２は電熱線、３は電極線、５はガイドボビ
ン、８は金属パイプ、１４は凹状部である。Fig. 1 is a sectional view of the cartridge heater of the present invention, Fig. 2 is a front view of a guide bobbin used in the cartridge heater, Fig. 3 is a sectional view of the guide bobbin, and Fig. 4 is a sectional view of a conventional cartridge heater. FIG. 5 shows a front view of the guide bobbin used in the cartridge heater. In the figure, 2 is a heating wire, 3 is an electrode wire, 5 is a guide bobbin, 8 is a metal pipe, and 14 is a concave portion.

Claims

[Scope of utility model registration request]

A heating wire 2 is wound around the outer periphery of a bobbin 1 having a plurality of through holes 12 in the axial direction, and two electrode wires 3 are inserted into the through holes 12, and the electrode wires 3 are connected to both ends of the heating wire 2. to configure the core unit 13, and this core unit 1
In the cartridge heater, the core unit 13 is inserted into a metal pipe 8 with only one side open, and the other side of the core unit 13 is fixed. has an outer diameter smaller than the inner diameter of the metal pipe 8 and larger than the outer diameter of the core unit 13;
And the core unit 13 is in contact with the core unit 13.
A guide having a concave portion 14 having an inner diameter larger than the outer diameter of the guide, a through hole 15 through which the electrode wire 3 passes, and a groove 16 through which the electrical insulating powder 9 passes partially in the longitudinal direction of the outer circumference. A cartridge heater in which a bobbin 5 is inserted so that a concave portion 14 fits into a core unit 13.