摘要:
A molding composition is obtained by blending flaky graphite with a resin component comprising a mixture of a thermoplastic resin having a glass transition temperature higher than room temperature and another thermoplastic resin having a glass transition temperature lower than room temperature. The composition is kneaded and rolled into a sheet to orient the graphite flakes parallel to the surface of the sheet. The rolled sheet is then molded into an article, for example, speaker diaphragm, arm pipe and head shell, which may be optionally be carbonized or graphitized. The resulting article exhibits improved physical properties, especially high specific modulus of elasticity comparable to aluminum and beryllium as well as good internal loss comparable to paper.
摘要:
A transmission cable and method for manufacturing same are provided. A plurality of signal lines are formed on one side of an insulating layer and ground lines are formed between the signal lines. The ground lines are electrically connected with a shield layer formed on a back surface of the insulating layer through metal bumps formed and embedded in the insulating layer. Insulating layers and shield layers may be formed on opposite sides sandwiching the signal lines and the ground lines. In this case, the ground lines are electrically connected with the shield layers, respectively, through metal bumps on both sides thereof. Consequently, a highly reliable transmission cable capable of high rate transfer and large capacity transfer can be provided.
摘要:
There is provided a flexible circuit board 22 that, when deposited on another flexible circuit board 40, causes no gap to occur between wiring films 4a, 4a, of the flexible circuit board 40. Moreover, a plurality of flexible circuit boards are deposited on one another to provide a flexible multi-layer wiring circuit board having no gaps between the flexible circuit boards and having less bowing. In the flexible circuit board 22, the thickness of a bonding layer 16, 16a, on the opposed side of a bowing metallic member 2, of an inter-layer insulating film 10 where which bumps 6 are formed is greater than the thickness of a bonding layer on the side of metallic member 2. When the flexible circuit board 22 is deposited on the other flexible circuit board 40 to form a flexible multi-layer wiring circuit board 50, the bonding layer 16, 16a can be filled between the wiring films 4a, 4a, so that the flexible multi-layer wiring circuit board 50 has no gaps and a less bowing.
摘要:
In a stencil printer, a drum has the outer periphery thereof formed by a porous sheet having passages for ink therein. The passages are each configured such that the ink entered an inlet pore is diverted from a single perpendicular to the drum at least once, and then flows out via at least one of outlet pores. The pores of the sheet are sized smaller than perforations to be formed in a stencil.
摘要:
Video signals representative of photographic images which are stored in a plurality of substantially equally dimensioned frames in horizontal and vertical positions are produced by picking up the images. A first signal indicative of a horizontal/vertical position and a top-bottom orientation of the photographic image stored in any of the frames is entered. The photographic image is rotated relatively in response to the first signal. For a vertically positioned image, a video signal is produced which is representative of the image with a magnification which is smaller than that of a horizontally positioned image. Such a procedure provides a video signal which represents an image in a non-inverted top-bottom orientation without any essential portions of the image being omitted.
摘要:
A stencil printer of the present invention includes a printer body, a print drum rotatably mounted on the printer body, a press roller for pressing a sheet against the circumferential surface of the print drum, and a moving device for selectively moving the press roller into or out of contact with the outer circumference of the print drum. The press roller and moving device are capable of being pulled out from the printer body integrally with each other.
摘要:
A transmission cable and method for manufacturing same are provided. A plurality of signal lines are formed on one side of an insulating layer and ground lines are formed between the signal lines. The ground lines are electrically connected with a shield layer formed on a back surface of the insulating layer through metal bumps formed and embedded in the insulating layer. Insulating layers and shield layers may be formed on opposite sides sandwiching the signal lines and the ground lines. In this case, the ground lines are electrically connected with the shield layers, respectively, through metal bumps on both sides thereof. Consequently, a highly reliable transmission cable capable of high rate transfer and large capacity transfer can be provided.
摘要:
An improved extendible telephone having a main casing incorporating a receiver and an auxiliary casing incorporating a transmitter and dial keys and slidably mounted on the main casing. Guide grooves are formed in each of the slide surface of the main casing and a back plate which is fastened to the auxiliary casing. Rail members are fitted in the slide surface of the main casing. The auxiliary casing is slidable along the rail members toward and away from an extended position while being guided by the guide grooves. The rail members each has an angled lug while the back plate is formed with two spaced pairs of angled recesses. When the auxiliary casing is slid to the extended position or a contracted position, the angled lugs selectively mate with either of the two pairs of angled recesses to lock the auxiliary casing in position.
摘要:
A steering gear mechanism has in combination a housing, a pinion shaft rotatably in the interior of the housing and provided with a pinion thereon; a slidable rack bar guided the housing and formed on one surface thereof with a rack adapted to operatively engage with the pinion, and a friction device adapted to give rise to a relatively large frictional force in the directions of sliding motion of the rack bar in the neutral steering position, while giving rise to a relatively small frictational force in the same direction of sliding motion within the normal range of the steering operation of the rack bar.
摘要:
A rear wheel steering system of the trailing arm type suspension for rear wheels having a trailing arm for supporting at the rear portion thereof a rear wheel and extending essentially in the longitudinal direction of a vehicle body by pivotally securing the front end thereof to the body side. Lateral arms are rotatably coupled at the outer ends thereof to the rear portion of the trailing arm and extending essentially in the lateral direction of the vehicle by pivotally securing the inner ends thereof to the vehicle body. The trailing arm allows the front portion thereof to displace essentially in the lateral direction of the vehicle. The rear wheel suspension arrangement allows the trailing arm to displace substantially in the lateral direction of the front end thereof and which comprises an actuator for steering a rear wheel by operating the trailing arm to displace the front portion of the trailing arm essentially in the lateral direction of the vehicle.