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    • 4. 发明专利
    • FLAT TYPE CATHODE-RAY TUBE
    • JPH08162046A
    • 1996-06-21
    • JP30237894
    • 1994-12-06
    • MITSUBISHI ELECTRIC CORP
    • IKETA SHUNICHIINOUE AKIRAHOJO MINORUKOBAYASHI HIROOTAKADA SHIROMIYAZAKI MASAYUKIINOUE AKIO
    • H01J29/86H01J31/12
    • PURPOSE: To provide a thin flat type cathode-ray tube with high reliability in which the stress near the connecting part between a front glass vessel and a back metal vessel can be reduced to keep the strength of the connecting part even when a screen size is enlarged. CONSTITUTION: This flat type cathode-ray tube has a cathode part 1 provided on a back metal vessel 50 side within a vacuum housing vessel 6 formed by connecting the side surface part of a front glass vessel 3 to the side surface part of the back metal vessel 50; and electron beam control means 2A, 2B for controlling the collision of electron beams generated in the cathode part 1 to a phosphor screen 4 applied onto the inner surface of the front glass vessel 3. The following structure is adapted to the back metal vessel 50. Namely, it has a side surface part having a prescribed width which is extended from the side surface part of the front glass vessel 2, and a bottom surface part opposed to the phosphor screen 4 of the front glass vessel 3. The bottom surface part has a dent of a prescribed quantity on the phosphor screen 4 side, and the angle part extending from the side surface part to the bottom surface part is set to a prescribed curvature radius.
    • 5. 发明专利
    • ELEVATOR RAIL SUPPORTING DEVICE
    • JPH06115850A
    • 1994-04-26
    • JP29092692
    • 1992-10-06
    • MITSUBISHI ELECTRIC CORP
    • INOUE AKIO
    • B66B7/02
    • PURPOSE:To provide an elevator supporting device which has a buffer bed prevented from levitation even when the bottom of an elevation passage is sunk. CONSTITUTION:A support fitment 4 has one side fixed to a fixing body 2 at the pit bottom of an elevation passage 8 and the other arranged facing a rail 1 for an elevating body. A part of a fastening tool 6 is engaged with the lower end part of the rail 1 and the other part is inserted in a groove hole 41 in a vertical direction to hold the rail 1 to the support fitment 4. This constitution causes vertically slidable holding of the lower end part of the rail 1 to the support fitment 4, arranged to the pit bottom, by means of the groove hole 41 of the support fitment 4, and deformation of the rail 1 based on the support fitment 4 owing to sinking of the pit bottom. This constitution causes the lower end part of the rain in a constantly normal position and support of a buffer in a normal state.
    • 7. 发明专利
    • SLIDING DOOR DEVICE OF ELEVATOR CAGE
    • JPH04116087A
    • 1992-04-16
    • JP23630990
    • 1990-09-06
    • MITSUBISHI ELECTRIC CORP
    • INOUE AKIO
    • B66B13/30
    • PURPOSE:To enable to maintain the required soundproofing irrespective of the position of cage floor by pressing a block plate against a side wall of a rail groove by engaging a lever with a cam when a sliding door is opened fully in such a way that the block plate slides against the side wall even if cage floor is displaced up and down. CONSTITUTION:When a sliding door 3 is fully closed, a lever 12 is pressed on a cam 13, a link 10 rotates against energizing force of an energizing door 14, and a block plate 11 of a sliding door device of an elevator cage is pressed on a side wall 2b. A clearance between a lower fringe section of the sliding door 3 and a threshold 2 is blocked, and air current noise which is generated due to the clearance when the cage ascends and descends or transmission of noise is reduced. Even if the threshold 2 is displaced in the up and down direction because of elastic support of the cage floor, soundproofing is not impaired because an adherent piece 11b slides, changes, and follows the side wall 2b. When the sliding door 3 starts to open, the lever 12 is disengaged from the cam 13, the block plate 11 retracts by an energizing piece 14, and the adherent piece 11b comes apart from the side wall 2. Consequently, open and close resistance of the sliding door 3 does not increase, and it operates smoothly.