Abstract: A crane includes a jib posture retention device that retains a jib in a frontward tilt posture to a boom. The jib posture retention device includes a jib mast that holds a rope connection part at a tensioning position separate from a jib proximal end and a boom distal end backward thereof to render a jib-side support rope and a boom-side support rope linearly tensioned with the jib in the frontward tilt posture. The jib mast is shiftable to a tension form of holding the rope connection part at a tensioning position in an uprise posture and a looseness allowing form of locating the rope connection part at a looseness allowing position closer to the boom distal end than the tensioning position and closer to the jib proximal end than the tensioning position to allow the jib-side support rope and the boom-side support rope to be loosened.

Abstract: A combination of a first unit and a second unit are to be rotatably interconnected through a pin. The first unit includes a first unit body provided with a first pin hole, a first contact member, and a fastening member. The first contact member has a first contact surface. The second unit includes a second unit body provided with a second pin hole, and a second contact surface. The second contact surface is contactable with the first contact surface. The fastening member fastens the first contact member to the first unit body so as to allow the relative position of the first contact member to the first unit body to be adjusted.

Abstract: To reduce the number of places where dimension control regarding an attachment position of a coupling portion to a structure is required. A first coupling portion includes a first pin receiving portion into which a coupling pin can be inserted, and a load transmitting portion integrally provided with the first pin receiving portion. A second coupling portion includes a second pin receiving portion into which the coupling pin can be inserted, and a load receiving portion integrally provided with the second pin receiving portion. The first pin receiving portion and the second pin receiving portion match with each other so as to detachably attach the coupling pin in a state where the load transmitting portion and the load receiving portion are in contact with each other.

Abstract: An intermediate support holder includes right and left guy line retaining units, right and left intermediate support line retaining units, and a connecting unit. The intermediate portions of the guy lines can be attached to the guy line retaining units. The intermediate support line retaining units are disposed so as to be aligned in the right-left direction with respect to the guy line retaining units, and base end portions of the intermediate support lines can be attached to the intermediate support line retaining units. The connecting unit couples and fixes the pair of right and left guy line retaining units and the pair of right and left intermediate support line retaining units to each other.

Abstract: An intermediate support holder includes right and left guy line retaining units, right and left intermediate support line retaining units, and a connecting unit. The intermediate portions of the guy lines can be attached to the guy line retaining units. The intermediate support line retaining units are disposed so as to be aligned in the right-left direction with respect to the guy line retaining units, and base end portions of the intermediate support lines can be attached to the intermediate support line retaining units. The connecting unit couples and fixes the pair of right and left guy line retaining units and the pair of right and left intermediate support line retaining units to each other.

Abstract: Provided is a construction machine capable of suppressing deformation of a boom in a simple configuration and at low costs. The construction machine includes a pair of backstops having respective hydraulic cylinders; a supply device which supplies the hydraulic cylinders with hydraulic fluid; a deformation sensing device which senses deformation of the boom; and a control device which controls the supply device so as to make a thrust of the hydraulic cylinder of one backstop having a larger pressing force, out of the pair of backstops, be larger than a thrust of the hydraulic cylinder of the other backstop, the pressing force being applied due to the deformation of the boom.

Abstract: Provided is a construction machine capable of suppressing deformation of a boom in a simple configuration and at low costs. The construction machine includes a pair of backstops having respective hydraulic cylinders; a supply device which supplies the hydraulic cylinders with hydraulic fluid; a deformation sensing device which senses deformation of the boom; and a control device which controls the supply device so as to make a thrust of the hydraulic cylinder of one backstop having a larger pressing force, out of the pair of backstops, be larger than a thrust of the hydraulic cylinder of the other backstop, the pressing force being applied due to the deformation of the boom.

Abstract: Disclosed is a raisable-lowerable member which comprises a boom and a jib. The boom comprises a first supporting portion configured to rotatably support a jib foot when the jib is set in a protruding posture; and a second supporting portion configured to rotatably support a supportable portion of the jib when the jib is set in an enfolded posture. A position adjusting and holding unit of the jib is configured to couple, to the frame, a specific site of the second link in such a manner that a relative position of the second link with respect to the frame in a rotational direction of the second link is adjustably changed to allow the rotational axis of the second joint portion to become coincident with the rotational axis of the jib foot, and to hold the second link at the changed relative position.

Abstract: Disclosed is a raisable-lowerable member which comprises a boom and a jib. The boom comprises a first supporting portion configured to rotatably support a jib foot when the jib is set in a protruding posture; and a second supporting portion configured to rotatably support a supportable portion of the jib when the jib is set in an enfolded posture. A position adjusting and holding unit of the jib is configured to couple, to the frame, a specific site of the second link in such a manner that a relative position of the second link with respect to the frame in a rotational direction of the second link is adjustably changed to allow the rotational axis of the second joint portion to become coincident with the rotational axis of the jib foot, and to hold the second link at the changed relative position.

Abstract: The present invention relates to a 1,2,4-thiadiazole compound of the formula (I) represented by the formula (1): wherein R1? represents C3-C7 alkynyl and X represents C4-C7 straight alkylene optionally substituted with one to four of R2?, C4-C7 straight alkenylene optionally substituted with one to four of R2?, ethylene-oxy-ethylene optionally substituted with one to four of R4?, or ethylene-thio-ethylene optionally substituted with one to four of R4?, R2? represents a halogen atom, trifluoromethyl or C1-C4 alkyl, and R4 represents a fluorine atom or C1-C3 alkyl.

Abstract: The present invention relates to a novel 1,2,4-thiadiazole compound represented by the formula (1): wherein, R1 represents C3-C7 alkynyl that may be substituted with halogen atom; R2 represents C3-C8 cycloalkyl which may be substituted with C1-C4 alkyl, halogen atom and trifluoromethyl or the like; A1 represents a single bond, C1-C2 alkylene or C2-C3 alkylidene. The 1,2,4-thiadiazole compound has an excellent arthropod controlling activity, and can effectively control an arthropod pests such as insect pests, acarine pests and the like.

Abstract: The present invention relates to a 1,2,4-thiadiazole compound of the formula (I) represented by the formula (1): wherein R1? represents C3-C7 alkynyl and X represents C4-C7 straight alkylene optionally substituted with one to four of R2?, C4-C7 straight alkenylene optionally substituted with one to four of R2?, ethylene-oxy-ethylene optionally substituted with one to four of R4?, or ethylene-thio-ethylene optionally substituted with one to four of R4?, R2? represents a halogen atom, trifluoromethyl or C1-C4 alkyl, and R4 represents a fluorine atom or C1-C3 alkyl. The 1,2,4-thiadiazole compound has an excellent pests controlling activity, and can effectively control an pests such as insect pests, acarine pests and the like.

Abstract: The present invention relates to a novel malononitrile compound represented by the formula (I): wherein, R1 represents a C1 to C5 (halo)alkyl and the like, R2 represents a C1 to C5 (halo)alkyl, R3 and R4 are the same or different and are a C1 to C6 (halo)alkyl and the like, R5 represents a halogen atom and the like, n is an integer of 0 to 4 and when n is 2 or more, R5 may be the same or different.

Abstract: The present invention relates to a novel 1,2,4-thiadiazole compound represented by the formula (1): wherein, R1 represents C3-C7 alkynyl that may be substituted with halogen atom; R2 represents C3-C8 cycloalkyl which may be substituted with C1-C4 alkyl, halogen atom and trifluoromethyl or the like; A1 represents a single bond, C1-C2 alkylene or C2-C3 alkylidene. The 1,2,4-thiadiazole compound has an excellent arthropod controlling activity, and can effectively control an arthropod pests such as insect pests, acarine pests and the like.

Abstract: The present invention relates to a novel malononitrile compound represented by the formula (I): wherein, R1 represents a C1 to C5 (halo)alkyl and the like, R2 represents a C1 to C5 (halo)alkyl, R3 and R4 are the same or different and are a C1 to C6 (halo)alkyl and the like, R5 represents a halogen atom and the like, n is an integer of 0 to 4 and when n is 2 or more, R5 may be the same or different. The malononitrile compound has an efficient pesticidal activity and can control effectively pests such as insect pests, acarine pests, nematode pests and the like.