摘要:
A midsole of a shoe has a low elastic part 20, a high elastic part 22 and an inclined surface 24. The low elastic part 20 and the high elastic part 22 include air bubbles. An ethylene-vinyl acetate copolymer (EVA) is used as a base polymer in the low elastic part 20 and the high elastic part 22. The inclined surface 24 is inclined upward from the inside to the outside. The low elastic part 20 is located to the inside of the inclined surface 24. The high elastic part 22 is located to the outside of the inclined surface 24. An inner high elastic part 26 is located to the inside of a low elastic part 20. The thickness of the low elastic part 20 becomes gradually larger from the outside to the inside along the inclined surface 24. The thickness of the high elastic part 22 becomes gradually larger from the inside to the outside along the inclined surface 24. The width Wa of the inclined surface 24 in left and right direction is 5 mm or more and 100 mm or less.
摘要:
A midsole of a shoe has a low elastic part 20, a high elastic part 22 and an inclined surface 24. The low elastic part 20 and the high elastic part 22 include air bubbles. An ethylene-vinyl acetate copolymer (EVA) is used as a base polymer in the low elastic part 20 and the high elastic part 22. The inclined surface 24 is inclined upward from the inside to the outside. The low elastic part 20 is located to the inside of the inclined surface 24. The high elastic part 22 is located to the outside of the inclined surface 24. An inner high elastic part 26 is located to the inside of a low elastic part 20. The thickness of the low elastic part 20 becomes gradually larger from the outside to the inside along the inclined surface 24. The thickness of the high elastic part 22 becomes gradually larger from the inside to the outside along the inclined surface 24. The width Wa of the inclined surface 24 in left and right direction is 5 mm or more and 100 mm or less.
摘要:
A method for forming a shock resistant tool comprising reinforcing fiber used as a reinforcing material and cyclopentadiene resin used as matrix resin by reaction injection molding method. Cyclopentadiene resin is superior in shock resistant performance and has a low melt viscosity, thus allowing fiber to be contained in the shock resistant tool at a high percentage.
摘要:
The tennis racket frame according to the present invention has a total weight of 230-300 g and total length of 52-67 cm and a periodic damping ratio of 0.5-4.0%, which is constituted of a fiber reinforced resin composed of polyamide resin reinforced by a continuous fiber and/or long fiber reinforcing material. A resin layer containing a non-woven fabric may be provided at the inside, outside or/and in the middle of the fiber reinforced resin layer. Because of this structure, the tennis racket frame of the present invention can be light in weight and compact in size with a large periodic damping property, making it possible to avoid tennis elbow.
摘要:
A reaction injection machine utilizing a plurality of reactant liquids, including a plurality of supply vessels for containing the reactant liquids, an injection tank and a fixed quantity metering device including a plurality of metering tanks provided for the supply vessels, a plurality of metering pipes for connecting the supply vessels with the metering tanks, and a plurality of supply pipes for supplying to the injection tank the reactant liquids metered in the metering tanks, whereby the reactant liquids are metered in the metering tanks so as to be supplied to the injection tank through the supply pipes and then, are stirred for mixing in the injection tank so as to be injected into a mold immediately after having been mixed.
摘要:
Disclosed are a speaker diaphragm formed from a polyamide resin reinforced with continuous fiber reinforcements and/or long fiber reinforcements, and a production method therefor. The speaker diaphragm has high internal loss and excellent specific modulus so as to produce a large sound volume, and has reduced high frequency distortion, flat frequency characteristics and reduced sound distortion for the capability of faithfully reproducing low volume sound.
摘要:
Disclosed is a structural material excelling in lightness of weight, strength, flexural modulus and other properties, being made from polyamide resin reinforced with continuous fiber and/or long filament reinforcing material. This structural material can be fabricated by a monomer casting method by arranging said fiber reinforcing material preliminarily in a desired shape, putting it into a mold, pouring molten &ohgr;-lactams containing a polymerization catalyst and an initiator into said mold, and heating to obtain polyamide resin.
摘要:
A data transfer system includes a transceiver and a data processing apparatus coupled to the transceiver through a first line, a second line, and a third line. A data transfer method for the data transfer system includes, when data is transferred from the transceiver to the data processing apparatus, transmitting a first trigger signal from the data processing apparatus to the transceiver through the first line, transmitting a first clock signal from the transceiver to the data processing apparatus through the second line in response to the first trigger signal, and transmitting first transfer data from the transceiver to the data processing apparatus through the third line in synchronization with the first clock signal. On the other hand, the data transfer method includes, when data is transferred from the data processing apparatus to the transceiver, transmitting a second trigger signal from the data processing apparatus to the transceiver through the first line, transmitting a second clock signal from the transceiver to the data processing apparatus through the second line in response to the second trigger signal, and transmitting second transfer data from the data processing apparatus to the transceiver in synchronization with the second clock signal. According to such a data transfer method for the data transfer system, the handshake signal output side is not changed between the data transmission side and the data reception side and one signal line is used to transfer the handshake signal. Therefore, the data transfer can be performed by the data transfer system simpler than the conventional data transfer system.
摘要:
A tennis racket frame is composed of a laminate of prepregs each containing carbon fibers serving as a reinforcing fiber thereof. At least one part of layers of the laminate is formed as a hard layer consisting of a prepreg composed of the reinforcing carbon fibers and a hard carbon film (DLC film) formed on the surface of the carbon fibers.
摘要:
A racket frame (10) including a laminate having not less than two fiber reinforced resinous layers layered one upon another and one or more modified fiber reinforced resinous layers (20) each containing a modified resinous composition, as a matrix resin, having a loss factor (=tan δ) not less than 0.5 nor more than 3.0, when the loss factor is measured at a temperature of 0° C. to 10° C. and a frequency of 10 Hz. A weight of the modified fiber reinforced resinous layers (20) is set to not less than 1% nor more than 10% of a weight of the fiber reinforced resinous layers.