Title:
【発明の名称】電子管用熱変形部材
Document Type and Number:
Japanese Patent JP3419786
Kind Code:
B2
Abstract:
PCT No. PCT/JP97/02101 Sec. 371 Date Feb. 19, 1998 Sec. 102(e) Date Feb. 19, 1998 PCT Filed Jun. 19, 1997 PCT Pub. No. WO97/49110 PCT Pub. Date Dec. 24, 1997A high thermal expansion member consisting of such as an Fe-Ni-Cr based alloy, a low thermal expansion member consisting of such as an Fe-Ni based alloy, and an intermediary member, which comprises one kind of metal selected from Fe, Al and Cu or an alloy comprising these metals, possesses a thermal expansion coefficient alpha 3 which is located between those of the high thermal expansion member (thermal expansion coefficient alpha 1) and the low thermal expansion member (thermal expansion coefficient alpha 2) ( alpha 1> alpha 3> alpha 2), and is interposed therebetween, are laminated to form a thermal deformation member for an electron tube or a thermal deformation member for electric control. The intermediary member, without adversely affecting strength or long term reliability of the thermal deformation member, contributes to manufacturing cost reduction and improvement of workability. In a color picture tube, the above described thermal deformation member for an electron tube is employed in a thermal deformation portion of a frame holder which one edge is solidly stuck to a panel and the other edge thereof is solidly stuck to a mask frame of a shadow mask. In an overcurrent protection, the above described thermal deformation member for electric current control is employed in a thermal deformation portion which opens a contact point.
Inventors:
Toshiharu Matsuki
Satoru Habu
Hitoshi Nakajima
Satoru Habu
Hitoshi Nakajima
Application Number:
JP52878997A
Publication Date:
June 23, 2003
Filing Date:
June 19, 1997
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H01H71/16; H01J29/07; H01J29/96; (IPC1-7): H01J29/02; G12B1/02; H01H37/52
Domestic Patent References:
| JP7234292A | ||||
| JP4713209A | ||||
| JP645353U |
Attorney, Agent or Firm:
Saichi Suyama