摘要:
A lighting device for a vehicle includes a housing, an inner lens molded of a transparent colored material that is fitted to an opening portion of the housing; and an outer lens molded of a transparent colorless material; and a left-hand inner wall surface of the housing is dimensioned to have a length different from that of a right-hand inner wall surface of the housing. To prevent the presence of a colorless part of the inner wall surface from appearing to have a longer length, the foregoing colorless part of the inner wall surface is covered with an extension portion of the inner lens which comes in close contact with the inner wall surface. To improve the appearance of the lighting device, all surfaces associated with the inner lens, such as a part of the inner wall surface having a greater dimension a lower inner wall surface; and an upper inner wall surface are coated with the surface material that corresponds with a material coated on the extension portion of the inner lens.
摘要:
A lighting device for a vehicle includes a mechanism for preliminarily fitting a lens to an extension before it is firmly fitted to a housing of the lighting device. To assure that a lens fitting operation is easily achieved at a reduced cost, a fitting hole is formed through an auxiliary foot portion extending from a housing fitting foot portion of the lens. A boss in the form of a tapered pin-shaped projection extends from the extension at the position corresponding to that of the fitting hole. In addition, a flange portion is formed at the upper end of the extension. The lens fitting operation is performed by inserting the boss into the fitting hole while the flange portion is placed on the upper surface of one of the side walls defining a lens receiving groove formed at the upper end of the housing of the lighting device. In the case that there is no possibility that water invades in the interior of a lighting chamber of the lighting device, the fitting hole may be formed directly through the housing fitting foot portion.
摘要:
A spark plug has a metal shell and a ground electrode joined at a base end portion thereof to the metal shell and includes a surface layer and a core higher in thermal conductivity than the surface layer. The surface layer has a thickness of 0.2 to 0.4 mm at a specific position that is located 1 mm from the base end portion. The spark plug satisfies the following condition: W1≧W2×1.55−(W3+0.25) where W1 (mm) is a width of the metal shell at a weld region of the metal shell joined with the base end portion in a specific direction that extends perpendicular to the axis direction through a center line of the ground electrode; W2 (mm) is a thickness of the ground electrode at the specific position in the specific direction; and W3 (mm) is a thickness of the surface layer at the specific position in the specific direction.
摘要:
There is provided a method for controlling a plasma-jet spark plug in a four-stroke internal combustion engine, including the steps of: causing the spark plug to generate a primary discharge during either a compression stroke or an expansion stroke of the engine in such a manner as to produce a plasma by the primary discharge; and causing the spark plug to generate a secondary discharge during a time after the primary discharge and before the completion of a subsequent intake stroke of the engine.
摘要:
An antenna main body comprises an antenna element, female connectors provided at a first connector, a female screw section, and an engagement claw inserted into an antenna mount hole H to make engagement with a lower side face of a roof panel R. A fixing member comprises cables, male connectors provided at a second connector, the male connectors being provided to make mechanical engagement with, and electrical connection to, female connectors, and being connected to the cable, and a male screw section helically fitted to a female screw section, thereby tightening the female connectors, the male connectors, and a roof panel R with one another.
摘要:
A display-integrated tablet device is disclosed and is capable of increasing an actual display period to improve luminance of an image displayed. An actual image display period in a one-image-plane display period is divided into a plurality of block display periods and a detection period is provided before or after each of the block display periods. During the detection period, a pulse for detection is generated from a stylus pen and a voltage obtained at each of electrodes is input to each of X- and Y-coordinate detection sections and held in those sections for coordinate detection. The device includes scan-side switch sections for respectively connecting X- and Y-scan drivers to X- and Y-electrodes, and detection-side switch sections for respectively connecting X- and Y-coordinate detection sections to the X- and Y-electrodes, so that the scan-side switches sections and detection-side switch sections are turned on and turned off during an actual display period, and turned off and turned on during a detection mode period, respectively.
摘要:
A spark plug of the present invention includes a cylindrical metal shell, a cylindrical ceramic insulator retained in the metal shell, a center electrode retained in the ceramic insulator and extending in an axial direction, and a ground electrode formed into a bent shape and having a rear end portion fixed to the metal shell and a front end portion facing a front end portion of the center electrode with a gap left therebetween. The ground electrode contains a large thickness region formed on a rear end side thereof with a large thickness, a small thickness region formed on a front end side thereof with a smaller thickness than that of the large thickness region, a protruding region formed on the small thickness region and facing the center electrode and a thickness changing region formed between the large thickness region and the small thickness region and located at a different position from a position of a minimum curvature radius region of the bent shape of the ground electrode.
摘要:
A spark plug including: a center electrode; a substantially cylindrical insulator; a cylindrical metal shell; a ground electrode having a base end joined to a leading end portion of the metal shell and a distal end bent toward the axis line. The ground electrode includes: a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion. A noble metal tip is joined to and partially embedded in the inner peripheral surface of the thin portion and disposed to form a gap between the noble metal tip and the leading end portion of the center electrode.
摘要:
A vehicle light can include a plurality of light projection units each having a replaceable LED lamp, a reflector unit, a projection lens, and a shielding member. A housing can be provided that includes a lens and a rear side part, with the housing configured to accommodate the light projection units. The rear side part can include a mounting opening therethrough with a base plate configured to be hermetically attached to the housing through the mounting opening of the rear side part. The replaceable LED lamp can be attached to the base plate, and an elastic connecting member can be configured to hermetically connect the housing and the base plate so that the LED lamps can be individually replaced. Since the LED lamps can be individually replaced, untrained persons can carry out the replacement operation. Furthermore, it is possible to reduce the replacement cost and time as well as improve the rate of operation of a vehicle.
摘要:
Light emitting device modules illuminate at a wide angle in the longitudinal direction of a lighting fixture. The lighting fixture can be provided with a light emitting device module having a light emitting device, an installation member for mounting multiple light emitting device modules thereon, and a support for supporting the installation member. The installation member 2 can be bent in multiple stages so that light beams from the multiple light emitting device modules mounted on the installation member are pointed to multiple different directions. The installation member can be bent in multiple stages so that an angle between the main optical axis line of the light emitting device module mounted on the forefront part of the installation member and a horizontal plane is smaller than the angle between the main optical axis line of the light emitting device module mounted on the root part of the installation member and the horizontal plane.