Abstract:
An object of the present invention is to provide a housing block retaining construction which allows a release tool to be easily operated, and will not interfere with the withdrawal of a housing block. According to the present invention, there is provided that a housing block retaining construction comprises a retaining lance slanting in the insertion direction provided in an insertion opening of a housing holder, a notch in which a distal end of a release tool is engageable formed in a distal end of the retaining lance, a retaining projection for engagement with the retaining lance provided on a housing block, and a recess for allowing the release tool to pass therethrough formed in that portion of the retaining projection corresponding to the notch.
Abstract:
A female terminal comprises: a square cylindrical electric contact portion (2) having an opening (2a) into which a male terminal is inserted: an elastic contact piece (3) housed in the electric contact portion and brought into elastic contact with the inserted male terminal, the elastic contact piece being formed with two side lug portions (10); and at least one supporting portion (14) formed on at least one of side walls of the electric contact portion, for supporting at least one of the lug portions formed in the elastic contact piece. For prevention of the elastic contact piece (3) from being dislocated from the supporting portion (14) without increasing the external size of the female terminal, in particular, the supporting portion (14) is elastically bent inwardly from the side wall (7) of the electric contact portion (2).
Abstract:
A complete locking confirming device for an electric connector comprising a first connector having a first connector housing, a second connector having a second connector housing capable of being coupled with the first connector housing, and locking means provided in combination with the first and second connector housings to lock the electric connector when the first and second connectors are coupled completely. The complete locking confirming device comprises a complete locking detecting slider mounted on either of the first connector housing and the second connector housing so as to be positioned at a complete locking indicating position only when the first and second connectors are coupled completely and the electric connector is locked by the locking means. The complete locking detecting slider is provided with a complete locking indicating mark, which is located opposite to and can be read by a mark reader only when the complete locking detecting slider is located at the complete locking indicating position.
Abstract:
A locking device for connector adapted to be locked by fitting projections formed on both sides of a male connector housing in engaging holes formed in locking arms connected to the side walls of a female connector housing, characterized in that each of the side walls of said female connector housing comprises a riser portion, and a raised supporting portion and a lower non-supporting portion which are integrally connected, respectively, to both sides of the riser portion, and each of said locking arms comprises a connecting riser portion, and an unlocking lever and a locking plate portion which are integrally connected, respectively, through the connecting riser portion to both sides thereof, said unlocking lever extending above and away from said supporting portion, said locking plate portion extending above and away from said non-supporting portion, said locking plate portion comprising an unlocking force transmitting portion integrally connected thereto as an extension of the unlocking lever. This locking device is further characterized in that the connecting riser has a cutaway portion formed therein.
Abstract:
A non-ferrous metal mechanical part having a wear-resistant and smooth surface, and comprising a substrate of a metal selected from the group consisting of aluminum, aluminum alloy, nickel, and nickel alloy, and a surface layer formed on a surface of said substrate and containing chromium oxide (Cr.sub.2 O.sub.3) as a major constituent. The chromium oxide (Cr.sub.2 O.sub.3) is a substance which has been converted by heating a chromium compound, and an intermediate layer containing a reaction product between the substrate and chromium oxide in the surface layer is formed at an interface between the surface layer and the substrate.
Abstract translation:一种具有耐磨和光滑表面的有色金属机械部件,并且包括选自铝,铝合金,镍和镍合金的金属基板,以及形成在所述表面上的表面层 底物并含有氧化铬(Cr2O3)作为主要成分。 氧化铬(Cr 2 O 3)是通过加热铬化合物而转化的物质,在表面层与基板的界面形成表面层中含有基材与氧化铬之间的反应产物的中间层。
Abstract:
Machine parts to be brought into contact with an elongated fibrous member each consists of a substrate of an iron series metal and a surface layer which has high wear-resistance and a good sliding property, and which contains chromium oxide as a major constituent. The chromium oxide is converted from a chromium compound upon heating. An intermediate layer containing a reaction product between the chromium oxide in the surface layer and the substrate is formed at an interface between the surface layer and the substrate.
Abstract:
A cathode-ray tube for color display comprises a face plate (1), a picture element layer (10) formed on an inner surface of the face plate and including two or more kinds of picture elements (5, 6 and 7), and a fluorescent material layer (4) formed between the picture element layer and the inner surface of the face plate and having a 10 percent afterglow time less than 50 microseconds. As necessary, a photoabsorptive material layer (2) may be provided in a matrix manner between the fluorescent material layer and the face plate. The picture element layer (10) performs a color display function and the fluorescent material layer (4) performs a communication function by means of a light pen. In case that a communication function by means of a light pen is not required, the step of forming the fluorescent material layer (4) may be omitted. Therefore, in manufacturing a cathode-ray tube requiring a communication function by means of a light pen and a cathode-ray tube not requiring such function, the same production line can be effectively utilized.
Abstract:
A method of producing ceramic articles having a density substantially equal to the theoretical density comprises heating a highly porous preliminary molding made of a ceramic powder to obtain a preliminarily sintered molding of a porosity below 30%, followed by sintering the preliminarily sintered molding under a uniform pressure by the use of a powder acting as a pressure transmitting medium. This method permits producing a ceramic article having a desired shape, and no deformation in it.
Abstract:
A device comprising a perforated housing containing therein pellets of a chemical composition which undergoes self-sustaining combustion with generation of a combustion gas and an initiator attached to the housing to ignite the pellets. To prevent breaking of the pellets resulting from their movements in the housing, a hollow and resilient retainer member is placed in the housing such that the initiator is exposed to the interior of the retainer and that the pellets are spaced from the initiator by the retainer and held under a compressive force by the resiliency of the retainer. The retainer has openings which allow a gas to pass therethrough but do not allow the pellets to pass therethrough. A helical spring and a perforated bellows are examples of the retainer.
Abstract:
[Problems] A conventional process for producing a solder preform in which a predetermined amount of high-melting metal particles are directly put into molten solder and stirred, requires a long time for dispersing the high-melting metal particles by stirring. Therefore, in the conventional method for producing a solder preform, dissolution of the high-melting metal particles into the molten solder occurred during stirring, and their particle diameters became small. If a semiconductor chip and a substrate are soldered with a solder preform containing metal particles having such decreased diameters, the space between portions being soldered becomes narrow, and a sufficient bonding strength is not obtained.[Means for Solving the Problems] In the present invention, a premixed master alloy having a higher proportion of the high-melting metal particles in solder is first prepared, then the premixed master alloy is put into molten solder to disperse the high-melting metal particles. As a result, the high-melting metal particles can be uniformly dispersed in solder in a short length of time. Accordingly, a solder preform which is obtained by the process for producing a solder preform according to the present invention can maintain a predetermined clearance between portions being soldered, and a sufficient bonding strength is obtained.