Abstract: A connection structure of a movable connector includes: a movable connector having a housing body; a panel wall having a panel hole in which the movable connector is inserted; a complementary connector to be coupled with the movable connector; and an elastic water-proofing packing which is fit over an outer periphery of the housing body. The elastic packing has a peripheral groove in which an inner peripheral edge of the panel wall abutting the panel hole is fit. In this configuration, the connection structure for a movable connector can be used in the place containing water.

Abstract: A connector fitting structure comprises a first connector in which an opening is defined by notching a front end portion of one side wall thereof, a second connector fitted with the first connector, an initial fitting member capable of retaining provisionally the second connector inside the first connector, and final fitting means for urging the second connector in a first direction to fit with the first connector, wherein a front end portion of the second connector is inserted from the opening into inside of the first connector along a second direction perpendicular to the first direction and provisionally retained by the initial fitting member, thereafter the second connector is fitted with the first connector by the final fitting means.

Abstract: An optical recording medium which can be recorded and read at a short wavelength (about 635-680 nm) or which can be recorded and read at two wavelengths, the short wavelength and a conventional wavelength (about 780 nm) has a recording layer containing an azo metal complex dye obtained by reacting a metal compound with an azo compound of formula (I) or an azo compound of formula (II). ##STR1## In formula (I), Q.sub.1 is a group of atoms necessary to form an aromatic ring with two C, A is C or a hetero-atom, Q.sub.2 is a group of atoms necessary to form an aromatic ring with two C and A, and Q.sub.3 is a group of atoms necessary to form an aromatic ring with C, N and A, fused to the aromatic ring completed by Q.sub.2. In formula (II), Q.sup.1 is a 8-quinolyl radical and Q.sup.2 is a 2-imidazolyl radical whose nitrogen at the 1-position has active hydrogen.

Abstract: The invention provides an optical recording medium comprising at least two recording layers containing a dye. At least two layers of the recording layers have different optical constants, and at least one among these recording layers having different optical constants contains a dye which forms a thin film having an absorption spectrum whose half-value width is up to 170 nm. This construction permits the medium to be written and read in a conventional wavelength range of about 780 nm and a shorter wavelength range of about 630-680 nm.

Abstract: An electrostatic chuck including an electrode having first and second surfaces, a dielectric member having a first layer for covering at least the first surface of the electrode, a power supply for conducting electric power to the electrode, and a cooling gas-feeding means for feeding a cooling gas onto the surface of the first layer of the dielectric member. A plurality of fine projections 28 are formed on the surface of the first layer of the dielectric member. Each of the fine projections 28 has a tip smaller than a root thereof so as to hold a wafer W in substantially a point-contact manner. The wafer can be held on the surface of the first layer of the dielectric member and cooled by the cooling gas fed from the cooling gas-feeding means.

Abstract: A cap type connector assembly includes a cap and an opposite terminal receiving tower. The cap receives a terminal fitting therein and has an entry opening for the high-voltage cable at one end thereof and an open casing for inserting the terminal receiving tower at the other end thereof. The open casing of the cap has a tubular portion covering the terminal fitting therein and a locking hook inside the open casing. The terminal receiving tower has a receiving portion at its fore end and a locking projection formed in its outer periphery surface. The receiving portion receives the inner tubular portion and the locking hook engages with the locking projection to seal the terminal receiving tower. The tubular portion of the cap may have an external shape of a truncated cone and the receiving portion of the terminal receiving tower may have a forwardly divergent, conical inner surface.

Abstract: A plug cap for a spark plug having a proximal end portion of an insulating resin pipe that has a double wall construction which has an outer wall fitted in a rain cover portion fitted on the insulating resin pipe, and an inner wall fitted on a high-voltage wire. The portion of an annular space (which is formed by the double wall construction, and has a closed bottom) close to the bottom thereof, is divided by a pair of ribs into two or more sections. A ventilation air hole, communicating with a plug hole, is open to one of the sections of the annular space, and a through hole, formed in the rain cover portion, is disposed in an overlying relation to the section of the annular space other than the section to which the air hole is open.

Abstract: A recording layer contains a dye A having a complex index of refraction at 780 nm whose real part n is 1.8-2.8 and imaginary part k is up to 0.15 and forming a thin film exhibiting an absorption spectrum whose half-value width is up to 170 nm and a dye B having a complex index of refraction at 630 nm or 650 nm whose real part n is 1.8-2.8 and imaginary part k is up to 0.2. An optical recording medium capable of writing and reading in a conventional wavelength region of about 780 nm and a shorter wavelength region of about 630 to 680 nm is obtained.

Abstract: A formazan metal complex dye is contained as a light absorbing dye in a recording layer to construct an optical recording medium. The formazan metal complex dye has high solubility and a relatively-low thermal decomposition temperature and the recording medium exhibits high sensitivity, especially high recording sensitivity, and improved light resistance. The formazan metal complex dye can be used as a photo-stabilizer in an optical recording medium. The formazan metal complex dye is also effective for stabilizing conventional dyes against light.

Abstract: A writing tool comprised of a head member, a refill, a return spring, and a cam mechanism for projecting the top of the refill out of or retracting it into the head member comprised of cam body, a rotation cam, and cam bar. The cam body is attached to the head member, and the rotation cam is located near the head member. Since the cam mechanism is located near the head member, the length of the writing tools may be short, therefore compact small writing tools can be formed.

Abstract: The present invention relates to a swing-type mechanical pencil wherein lead can be extended from a head member connected to an outer sleeve by swinging the outer sleeve to move a knocking hammer. The knocking hammer applies a lead-feeding action to feed the lead. A chuck shutting hammer is mounted between a spring bearing of a chuck ring sleeve retaining a chuck ring which is a component of the lead holder and a second spring connected with the chuck. An upward movement of the chuck shutting hammer forces the chuck into a chuck ring. This provides a positive action to shut the chuck preventing slipping of the lead when writing with the mechanical pencil. Manual advance of lead is provided by a slider in a recession an outer surface of the sleeve that engages the lead holder allowing the chuck to be manually opened to extend lead.

Abstract: The present invention relates to a swing-type mechanical pencil wherein lead can be extended from a head member connected to an outer sleeve by swinging the outer sleeve to move a knocking hammer. The knocking hammer applies a lead-feeding action to feed the lead. A chuck shutting hammer is mounted between a spring bearing of a chuck ring sleeve retaining a chuck ring which is a component of the lead holder and a second spring connected with the chuck. An upward movement of the chuck shutting hammer forces the chuck into a chuck ring. This provides a positive action to shut the chuck preventing slipping of the lead when writing with the mechanical pencil. Manual advance of lead is provided by a slider in a recession an outer surface of the sleeve that engages the lead holder allowing the chuck to be manually opened to extend lead. The recess in the outer sleeve has a restriction that is engaged by a projection in the slider to lock the slider and lead holder against movement and prevent advancing of lead.

Abstract: A writing instrument comprises a refill disposed slidably along the axial direction in an outer cylinder, a rotating cam set provided in the vicinity of the rear portion of the refill, a weighting balance placed in the vicinity of cam bar of the rotating cam set, a spring member for energizing rearwards the refill, and a knocking portion for operating the cam bar of the rotating cam set. According to the above construction of the writing instrument, when the writing instrument is shaken with force exceeding a certain level, gravity balance functions to project and retract the refill from the outer cylinder, while the refill may also be projected and retracted by knocking motions of the knocking portion.

Abstract: A holder for spare lead comprises a hollow cylindrical holder body, said holder having an open end portion and a longitudinal groove formed on the inner wall along the axial direction of the holder body for locating only a suitable number of leads to a position from which the leads are taken out, and a cap body frictionally and rotatably mounted on the one end portion of the holder body. The cap body has an opening to dispense the spare lead from the groove.

Abstract: A knock type sharp pencil provided in its outer cylinder with a core holding mechanism composed of an inner cylinder coaxially arranged in the outer cylinder, a lead chuck inserted in the inner cylinder and including a chuck portion projecting out of the front end of the inner cylinder, a chuck ring inserted between a flange portion of the inner cylinder and the chuck portion of the lead chuck, a core case provided at its rear end with a knock portion and connected to the rear end of the lead chuck, and a spring means arranged in the inner cylinder and inserted between the flange portion of the inner cylinder and the front end portion of the core case, the spring means urging the core case backwardly.

Abstract: An automatic pencil which comprises a pointed end cap made of a synthetic resin material into which a lead pushing-out mechanism consisting of a lead chuck fixed to a lead container, a chuck ring externally fitted onto the lead chuck and a spring is inserted, a cushion stopper on the outer periphery of which and at one end thereof engaging projections are integrally formed so as to oppose to a plurality of engaging holes circumferentially provided around an open edge of the pointed end cap, and an outer tube into which the outer periphery of the backward end of the aforesaid pointed end cap is inserted to combine them with each other and, as a consequence, the resultant automatic pencil has a simple construction, so that it can easily be assembled.

Abstract: A clip for writing utensils such as a sharp pencil or the like comprising a clip piece including a pair of opposed insertion arms, said insertion arms being inserted into receiving grooves provided in side surfaces of a clip base formed integral with a holder of the writing utensil.

Abstract: An automatic pencil employing axial movement of a lead piece guide and a lead piece chucking mechanism. After a length of protruding lead rod is used up, the lead piece guide is caused to retract in the same amount as the wearing away of the lead rod. By pressing the tip of the lead rod against another object, the lead rod is caused to move back with the chucking mechanism. After the rod is retracted until the tip aligns with the tip of the guide, the rod and lead piece guide will be moved back. The rod will then advance when the holder is moved away from the object while the lead piece guide will be left in the retracted position due to a large friction between the friction member and the guide means. By this operation, the rod is protruded from the guide at substantially equal length to the stroke of the retracting movement.

Abstract: A writing instrument includes a holding outer tube to be held by the user and a lead rod holding means, said lead rod holding means being provided in said holding outer tube and movable relative to said outer tube. The writing instrument has a lead rod feeding means; an engaging member for holding said lead rod holding mechanism at a position where a lead rod guiding pipe engages with an engaging surface formed on said holding outer tube when said lead rod guiding pipe advances to a position projected from said holding outer tube by pressing said lead rod holding means; and a push button provided for pushing said engaging member to release the engagement with said surface.