Abstract: A hose support structure includes a first round bar and a second round bar provided on a mounting surface of a first plate and extending in a first direction. A first restraint and a second restraint face the mounting surface in a second direction and are provided between the first round bar and the second round bar in a third direction. The first restraint extends from a first proximal end toward a first distal end in a fourth direction, and the second restraint extends in a fifth direction opposite to the fourth direction from a second proximal end connected to the first proximal end. A third restraint is provided opposite to the second restraint with respect to the first restraint in the first direction. At least a part of the second restraint is separated from the mounting surface by a second distance shorter than the first distance in the second direction.

Abstract: A work vehicle includes a vehicle body frame, a cab frame attached to the vehicle body frame so as to be rotatable around a pivot axis, a support provided on the cab frame, a fastener provided on the cab frame and between the support and the pivot axis in a radial direction from the pivot axis, a hydraulic hose, and a hose installation member. The hose installation member includes an engaging portion connected to the fastener, an extending portion configured to be supported on the support, a beam portion connecting the engaging portion and the extending portion, and a first hose holding member provided on the beam portion and having a first opening through which the hydraulic hose passes.

Abstract: A work vehicle includes a cover having a center cover portion, a first side cover portion, and a second side cover portion. The center cover portion includes a punching metal and has a substantially rectangular shape. A first side and a second side of the rectangular shape face each other in a width direction, and a third side and a fourth side of the rectangular shape face each other in a front-rear direction. The first side cover includes a punching metal, has a substantially rectangular shape, is connected to the center cover portion at the first side, and is inclined downward in the height direction relative to the center cover portion. The second side cover includes a punching metal, has a substantially rectangular shape, is connected to the center cover portion at the second side, and is inclined downward in the height direction relative to the center cover portion.

Abstract: A hose support structure includes a first round bar and a second round bar provided on a mounting surface of a first plate and extending in a first direction. A first restraint and a second restraint face the mounting surface in a second direction and are provided between the first round bar and the second round bar in a third direction. The first restraint extends from a first proximal end toward a first distal end in a fourth direction, and the second restraint extends in a fifth direction opposite to the fourth direction from a second proximal end connected to the first proximal end. A third restraint is provided opposite to the second restraint with respect to the first restraint in the first direction. At least a part of the second restraint is separated from the mounting surface by a second distance shorter than the first distance in the second direction.

Abstract: A work vehicle includes a first hydraulic pump that supplies hydraulic oil to a first hydraulic motor so as to drive a first travel device forward when hydraulic pressure applied to a first port is higher than hydraulic pressure applied to a second port, and a second hydraulic pump to drive a second travel device forward when hydraulic pressure applied to a third port is higher than hydraulic pressure applied to a fourth port. A first pilot oil passage, a second pilot oil passage, a third pilot oil passage, and a fourth pilot oil passage connect the operation device to first, second, third, and fourth ports, respectively. A first bypass oil passage connects the first pilot oil passage and the fourth pilot oil passage. A second bypass oil passage connects the second pilot oil passage and the third pilot oil passage. A first throttle is provided in the first bypass oil passage. A second throttle is provided in the second bypass oil passage.

Abstract: A work vehicle includes a first hydraulic pump that supplies hydraulic oil to a first hydraulic motor so as to drive a first travel device forward when hydraulic pressure applied to a first port is higher than hydraulic pressure applied to a second port, and a second hydraulic pump to drive a second travel device forward when hydraulic pressure applied to a third port is higher than hydraulic pressure applied to a fourth port. A first pilot oil passage, a second pilot oil passage, a third pilot oil passage, and a fourth pilot oil passage connect the operation device to first, second, third, and fourth ports, respectively. A first bypass oil passage connects the first pilot oil passage and the fourth pilot oil passage. A second bypass oil passage connects the second pilot oil passage and the third pilot oil passage. A first throttle is provided in the first bypass oil passage. A second throttle is provided in the second bypass oil passage.

Abstract: A work vehicle includes a vehicle body frame, a cab frame attached to the vehicle body frame so as to be rotatable around a pivot axis, a support provided on the cab frame, a fastener provided on the cab frame and between the support and the pivot axis in a radial direction from the pivot axis, a hydraulic hose, and a hose installation member. The hose installation member includes an engaging portion connected to the fastener, an extending portion configured to be supported on the support, a beam portion connecting the engaging portion and the extending portion, and a first hose holding member provided on the beam portion and having a first opening through which the hydraulic hose passes.

Abstract: A hydraulic system for a working machine includes an fluid cooler including an input port and an output port, the fluid cooler being configured to cool an operation fluid, an outputting portion to output the operation fluid, a traveling hydraulic device to be activated by the operation fluid, an operating hydraulic device to be activated by the operation fluid, a first output fluid tube connecting the operating hydraulic device to a tank, a second output fluid tube branching from the first output fluid tube and being connected to the input port of the fluid cooler, a third output fluid tube connecting the outputting portion to the output port of the fluid cooler, a fourth output fluid tube connected to the traveling hydraulic device, the fourth output fluid tube being connected to the second output fluid tube, and a first check valve disposed on the fourth output fluid tube.

Abstract: A hydraulic system for a working machine includes an fluid cooler including an input port and an output port, the fluid cooler being configured to cool an operation fluid, an outputting portion to output the operation fluid, a traveling hydraulic device to be activated by the operation fluid, an operating hydraulic device to be activated by the operation fluid, a first output fluid tube connecting the operating hydraulic device to a tank, a second output fluid tube branching from the first output fluid tube and being connected to the input port of the fluid cooler, a third output fluid tube connecting the outputting portion to the output port of the fluid cooler, a fourth output fluid tube connected to the traveling hydraulic device, the fourth output fluid tube being connected to the second output fluid tube, and a first check valve disposed on the fourth output fluid tube.

Abstract: Disclosed are an adhesive for oxide ceramics, which comprises as its effective ingredient a crystallized glass mainly comprising SiO.sub.2, Al.sub.2 O.sub.3, Li.sub.2 O, MgO and/or ZnO, and TiO.sub.2 and/or ZrO.sub.2, and also a method of bonding oxide ceramics together, which comprises heating oxide ceramics to be bonded together at 1200.degree. to 1600.degree. C. with the adhesive placed between the ceramics.

Abstract: Disclosed is an abrasion resistant adherend, which comprises a vulcanized rubber layer and ceramic pieces juxtaposed and embedded in the rubber layer and in which the ceramic pieces are at least partly exposed out of the rubber layer and are provided with a penetrative sintering layer in such a portion thereof as being in contact with the rubber layer.

Abstract: A method for jointing ceramic elements is disclosed. Ceramic elements to be joined are arranged between a pair of torces each having a nozzle for spouting combustion gas.The joint line of ceramic elements is first heated by flames of combustion gas spouted from each nozzle and, then, a high voltage is applied between said pair of torches. Ceramic elements are joined by said heating and applying a high voltage between torches.

Abstract: A composite material composed of a non-oxide type ceramic and iron or an alloy thereof is disclosed, wherein the non-oxide type ceramic is formed with a copper metallized surface and bonded to the iron or alloy thereof with an intermediate layer of Invar steel, Kovar or copper disposed between the copper metallized surface and the iron or alloy thereof.

Abstract: A method for the adhesion of oxide type ceramics and copper or a copper alloy is provided by this invention, which method comprises placing the oxide type ceramics and the copper or copper alloy in mutual contact, heating them in an oxidative atmosphere thereby effecting adhesion thereof, and rapidly cooling the resultant composite of adhesion. The adhesive strength of the composite of adhesion so produced is about 40% higher than the adhesive strength of a similar composite of adhesion obtained by the conventional method involving gradual cooling.

Abstract: An adhesive agent having, as its active components, copper sulfide and at least one member selected from the group consisting of alumina, silica, and kaoline enables the opposed surfaces of two oxide-type ceramic articles to be joined to each other with high adhesive strength, this fast union being accomplished by interposing the adhesive agent between the opposed surfaces of the ceramic articles and heating the adhesive agent to a temperature of not less than 1000.degree. C.

Abstract: A process for metallizing the surface of a ceramic is provided. The surface of a ceramic is coated with a mixture of SiO.sub.2 and at least one copper compound selected from the group consisting of copper carbonate, copper sulfate, copper sulfide, copper oxide, and copper chloride. Thereafter, the film is heated at 900.degree. to 1300.degree. C. in an oxidizing atmosphere to form a baked layer on the surface of the ceramic. The ceramic having the baked layer formed thereon is subjected to a reduction treatment to form a copper-metallized layer on the surface of the ceramic.

Abstract: A composition of at least one member selected from the group consisting of sodium fluoride and calcium fluoride and optionally containing kaolin is powerful adhesive for ceramic articles which is used by interposing the adhesive intimately between the opposed surfaces for union of the ceramic articles and heating the adhesive to a temperature equal to or higher than the decomposition temperature of the fluoride used.

Abstract: Adhesion of two silicon nitride parts is accomplished by interposing a layer of calcium fluoride or a mixture of calcium fluoride with kaoline between the two silicon nitride parts and heating the resultant interposed layer.

Abstract: An adhesive having as its active component at least one fluoride selected from the group consisting of alkali metal fluorides except for sodium fluoride and alkaline earth metal fluorides except for calcium fluoride or a combination of the aforementioned at least one fluoride with kaolin and an adhesive having as its active component a combination of at least one member selected from the group consisting of yttria and alkaline earth metal compounds except for fluorides, an alkali metal fluoride, and at least one member selected from the group consisting of kaolin and alkaline earth metal fluorides both provide fast adhesion easily between two ceramic articles by a method which comprises the steps of interposing the adhesive between the ceramic articles and heating the ceramic articles with the adhesive therebetween to a temperature equal to or higher than the decomposition temperature of the fluoride in the adhesive.

Abstract: A method for providing strong adhesion of two ceramic articles to each other or one ceramic article to an article of metallic copper, which method comprises applying, in the former adhesion, a powder mixture of CuS-LaCrO.sub.3 -SiO.sub.2 -Cu to the opposed surfaces of the two ceramic articles or, in the latter adhesion, a powder mixture of CuS-LaCrO.sub.3 -SiO.sub.2 to the opposed surfaces of the ceramic article and the article of metallic copper and, thereafter, heating the pair of articles in the air at a temperature of from 1000.degree. to 1200.degree. C.