Abstract: A handle weight mounting structure of a straddle-type vehicle which achieves a simple structure and thereby enables a reduction of variation in the vibration isolating performance and a cost reduction. A fastening bolt includes a shank portion in which an external thread portion to be screwed and joined to the inner face of a handle pipe is formed; and a head portion which is formed on an end part of the shank portion for pressing the outer weight in the axial direction of the handle pipe, the shank portion includes a lock portion which is designed to couple the outer weight and the inner weight to each other. The lock portion is provided on an end part of the external thread portion opposite from the head portion.

Abstract: [Problem] To provide a solar power system and a solar panel installation method with which, by using a positioning configuration which is not prone to visible vertical misalignment while preserving sunlight lighting efficiency in the positioning of a plurality of solar panels, solar panel installation is easy, and which is suitable to installing a large solar power system on a hill, in wetlands, etc. [Solution] A solar power system comprises a solar panel group (2) in which a plurality of vertically oriented rectangular solar panels (21) are inclined in the same direction, either left or right, at a prescribed angle of inclination (theta), and the lighting faces (22) of each of the solar panels (21) are arrayed in the same plane.

Abstract: An exhaust system for an internal combustion engine, configured to enhance a silencing effect while being miniaturized. The exhaust system includes a muffler body configured in such a manner that a first expansion chamber and a second expansion chamber separated from each other are partitioned therein. A plurality of exhaust pipes extend from an internal combustion engine and are connected to the first expansion chamber. A communication pipe is configured to be connected to the first expansion chamber and the second expansion chamber, to merge exhaust gas from the plurality of exhaust pipes, and to introduce the merged exhaust gas into the second expansion chamber.

Abstract: An exhaust system for an internal combustion engine, configured to enhance a silencing effect while being miniaturized. The exhaust system includes a muffler body configured in such a manner that a first expansion chamber and a second expansion chamber separated from each other are partitioned therein. A plurality of exhaust pipes extend from an internal combustion engine and are connected to the first expansion chamber. A communication pipe is configured to be connected to the first expansion chamber and the second expansion chamber, to merge exhaust gas from the plurality of exhaust pipes, and to introduce the merged exhaust gas into the second expansion chamber.

Abstract: A handle weight mounting structure of a straddle-type vehicle which achieves a simple structure and thereby enables a reduction of variation in the vibration isolating performance and a cost reduction. A fastening bolt includes a shank portion in which an external thread portion to be screwed and joined to the inner face of a handle pipe is formed; and a head portion which is formed on an end part of the shank portion for pressing the outer weight in the axial direction of the handle pipe, the shank portion includes a lock portion which is designed to couple the outer weight and the inner weight to each other. The lock portion is provided on an end part of the external thread portion opposite from the head portion.

Abstract: A pile foundation, on top of which a structural object is placed, supported at the ground surface by a plurality of batter piles, has a pile foundation body comprising a lower plate disposed on the bottom side, an upper plate disposed on the top side, and a support post for supporting the lower plate and the upper plate, separated by a prescribed gap, to be substantially parallel. A plurality of piling holes, through which each of the batter piles pass through in a downward direction in a substantially radial form, are formed in the lower plate and the upper plate.

Abstract: [Problem] To provide a pile foundation and a pile foundation installation method for which the manufacturing to transporting of structural members and installation work at the site are simple and inexpensive, mass production and cost reduction are possible, and frost damage countermeasures and frost heaving countermeasures can be effectively performed. [Solution] A pile foundation (1), on top of which a structural object is placed, supported at the ground surface (F) by a plurality of batter piles (3), has a pile foundation body (2) comprising a lower plate (21) disposed on the bottom side, an upper plate (22) disposed on the top side, and a support post (23) for supporting the lower plate (21) and the upper plate (22), separated by a prescribed gap, to be substantially parallel. A plurality of piling holes (24), through which each of the batter piles (3) pass through in a downward direction in a substantially radial form, are formed in the lower plate (21) and the upper plate (22).

Abstract: An exhaust-gas muffler includes a casing and a relief valve. The relief valve is provided to open when a pressure of an upstream exhaust-gas chamber is equal to or higher than a predetermined value. The relief valve includes a shutter, a spring, and a seal member. The shutter member is provided to face an open end of a gas passage provided between an upstream exhaust-gas chamber and a downstream exhaust-gas chamber. The spring is to bias the shutter member in a direction in which the gas passage is closed. The seal member is disposed on a downstream side of the gas passage. The seal member is made of a metal mesh material and has a disc shape to cover the open end of the gas passage.

Abstract: [Problem] To provide a solar power system and a solar panel installation method with which, by using a positioning configuration which is not prone to visible vertical misalignment while preserving sunlight lighting efficiency in the positioning of a plurality of solar panels, solar panel installation is easy, and which is suitable to installing a large solar power system on a hill, in wetlands, etc. [Solution] A solar power system comprises a solar panel group (2) in which a plurality of vertically oriented rectangular solar panels (21) are inclined in the same direction, either left or right, at a prescribed angle of inclination (theta), and the lighting faces (22) of each of the solar panels (21) are arrayed in the same plane.

Abstract: An exhaust-gas muffler includes a casing and a relief valve. The relief valve is provided to open when a pressure of an upstream exhaust-gas chamber is equal to or higher than a predetermined value. The relief valve includes a shutter, a spring, and a seal member. The shutter member is provided to face an open end of a gas passage provided between an upstream exhaust-gas chamber and a downstream exhaust-gas chamber. The spring is to bias the shutter member in a direction in which the gas passage is closed. The seal member is disposed on a downstream side of the gas passage. The seal member is made of a metal mesh material and has a disc shape to cover the open end of the gas passage.

Abstract: A thermosensitive reversible recording material capable of forming and holding clear colored images with a high contrast and capable of being repeatedly color-developed and color-erased many times, has a thermosensitive recording layer formed on substrate sheet and including (A) at least one reversibly color-developing and -erasing compound selected from those of the formulae (I), (II) and (III), and (B) at least one dye precursor compound of the formula (IV). ##STR1## R.sup.1 =naphyl or lower alkoxy-substituted phenyl group Y.sup.1, Y.sup.2 =--NHCO--, --SCONH--, --CONHCO--, etc., n, m, p=10 to 29, R.sup.2, R.sup.3, R.sup.4, R.sup.5 =C.sub.1 -C.sub.9 alkyl, C.sub.3 -C.sub.6 cycloalkyl or substituted or non-substituted phenyl group, R.sup.6, R.sup.7 =C.sub.1 -C.sub.6 alkyl or phenyl group.

Abstract: A thermosensitive reversible recording material having a thermosensitive recording layer formed on a substrate sheet and including a substantially colorless dye precursor and a color developing agent capable of reversibly color-developing and erasing the dye-precursor, in which the color developing agent comprises an aromatic compound of the general formula (1) and optionally an overcoat layer preferably containing an electron-beam or ultraviolet-ray cured polymer is formed on the thermosensitive recording layer general formula (1): ##STR1## ?R=naphthyl or lower alkoxy-substituted phenol group, Y=--NHCO--, --SCONH--, --CONHCO--, --NHCONH--, --OCO--, --NHCOO--, --NHCOS--, --S--, --NHCONHSO.sub.2 --, --O--, --OCSNH--, --CONHNH--, --OCONHSO.sub.2 --, --CO--, --SCSNH--, --NHSO.sub.2 --, --CONHSO.sub.2 --, --OSO.sub.

Abstract: A thermosensitive reversible color-developing and disappearing agent includes an aromatic compound having at least one group of the formula, --SO.sub.2 NHCXNH--, wherein X.dbd.O or S atom, and at least one straight chain alkyl group with 11 or more carbon atoms, and is reactive with a dye precursor in a thermosensitive recording material to thereby record colored images on the recording material upon heating imagewise, and make the colored images disappear upon heating to a temperature lower than the colored image-forming temperature.

Abstract: A tape-guide for a magnetic tape is formed by an injection molding process of a mixture material containing 60 to 89% by weight of an ultra-high-molecular-weight polyolefin base resin, having a molecular weight of 800,000, and 4 to 25% by weight of an inorganic additive. The tape guide has an at least partially cylindrical outer surface and an axial end portion, with at least one recess in the end portion. A burr formed by the injection molding hole is located within the recess.

Abstract: A thermosensitive recording material capable of recording thereon clear colored images having high resistances to oily substances, plasticizers, moisture, and heat and an excellent storage persistency over a long time, comprises a thermosensitive colored image-forming layer formed on a sheet substrate and comprising a colorless dye precursor, a color developing agent, and a binder, the color developing agent comprising at least one compound of the formula (I): ##STR1## and the colored image-forming layer further comprising an additive comprising at least one selected from: (1) aromatic epoxy compounds, (2) aromatic aziridine compounds, (3) aromatic compounds of the formulae (II), (III) and (IV): ##STR2##

Abstract: A semi-cylindrical tape-guide for a magnetic tape is formed by an injection molding process of a mixture material containing 60 to 89% by weight of an ultra-high-molecular-weight polyorefin base resin, having a molecular weight of 800,000, and 4 to 25% by weight of an inorganic additive.