Abstract: In an injection device according to an embodiment, each of a plurality of outer peripheral protrusions of a screw is formed with an outer peripheral protrusion inclined surface, and each of a plurality of inner peripheral protrusions of a through-hole of a bush is formed with an inner peripheral protrusion inclined surface. The injection device advances the bush until a linear-motion torque exceeds a linear-motion torque threshold, and, if a rotation torque exceeds a rotation torque threshold before the linear-motion torque exceeds the linear-motion torque threshold, ends control processing when the linear-motion torque exceeds the linear-motion torque threshold.

Abstract: An injection device according to one embodiment of the present invention monitors the linear torque of a linear motor and the rotary torque of a rotary motor using a first detection unit for detecting the linear torque and a second detection unit for detecting the rotary torque while controlling the linear motor and the rotary motor so that a bush is spline-fitted to a screw.

Abstract: A gas compressor includes a main body portion having a compression unit configured to compress gas, a drive unit configured to drive the compression unit, and a storage part configured to store the gas compressed by the compression unit, a leg portion configured to support the main body portion and configured to be supported by a support portion provided on an auxiliary storage unit, and a fastening unit configured to detachably fasten the auxiliary storage unit and the main body portion. The leg portion includes an connecting buffer portion having elasticity and configured to be brought into contact with the support portion, and the fastening unit fastens the auxiliary storage unit by applying a force in a direction in which the first connecting buffer portion is elastically deformed.

Abstract: A tire includes a tread portion including four circumferential grooves between outboard and inboard tread edges, and five land portions divided by the circumferential grooves. The circumferential grooves include an inboard shoulder circumferential groove located nearest to the inboard tread edge in the circumferential grooves. The land portions include an inboard shoulder land portion disposed axially outward of the inboard shoulder circumferential groove and having a ground contact surface with the smallest axial width in the land portions. The inboard shoulder land portion is provided with inboard shoulder lateral grooves and inboard shoulder sipes. The inboard shoulder lateral grooves include inner ends away from the inboard shoulder circumferential groove. The inboard shoulder lateral grooves extend axially outward from the inner ends to a location beyond the inboard tread edge. The inboard shoulder sipes extends from the inboard shoulder circumferential groove to a location beyond the inboard tread edge.

Abstract: A tyre includes a tread portion including first and second land portions. The first middle land portion is provided with first middle lateral grooves traversing the first middle land portion completely. The second middle land portion is provided with second middle lateral grooves traversing the second middle land portion completely. Each of the first middle lateral grooves and the second middle lateral grooves is a curved groove which includes a first convex portion located on a first side with respect to a groove-reference-straight-line that connects both ends of a groove centerline of the curved groove and a second convex portion located on a second side with respect to the groove-reference-straight-line, and a circumferential length of the groove-reference-straight-line of each first middle lateral groove is smaller than a circumferential length of the groove-reference-straight-line of each second middle lateral groove.

Abstract: A tire 2 includes a tread 4 and a belt 14 including inner and outer layers 38 and 40. Each end of the outer layer 40 is located axially inward of an end of the inner layer 38. A circumferential narrow groove 48 is formed on each shoulder land portion 46s so as to continuously extend in a circumferential direction. A groove width of the circumferential narrow groove 48 is smaller than that of a shoulder circumferential groove 44s. The circumferential narrow groove 48 is located between the shoulder circumferential groove 44s and the end of the outer layer 40 in an axial direction. A ratio of a distance in the axial direction from the shoulder circumferential groove 44s to the circumferential narrow groove 48 to a distance in the axial direction from the shoulder circumferential groove 44s to the end of the outer layer 40 is 15% to 55%.

Abstract: A tire 2 includes a tread 4, a pair of sidewalls 6, a pair of beads 10, a carcass 12, a belt 14, an inner liner 20, and a pair of insertion layers 22 disposed between the carcass 12 and the inner liner 20. Each insertion layer 22 is disposed between an end of the belt 14 and an end PB of the bead 10. Each insertion layer 22 has a volume resistivity of less than 108 ?·cm. A complex elastic modulus of the insertion layer 22 is equivalent to or higher than a complex elastic modulus of the inner liner 20. A thickness of each sidewall 6 at a maximum width position PW is not greater than 5.0 mm.

Abstract: A tread of a tire can include a cap layer and a base layer. A loss tangent of the cap layer at 30° C. may be not greater than 0.30, and a loss tangent of the base layer at 30° C. may be less than the loss tangent of the cap layer at 30° C. The base layer can be inward of a reference end of the tread in an axial direction A fixing layer can be between the cap layer and a carcass in a radial direction. A first end of the fixing layer can be outward of an end of the base layer in the axial direction, or a position of the first end of the fixing layer can coincide with a position of the end of the base layer in the axial direction. Adhesiveness of the fixing layer can be higher than adhesiveness of the cap layer.

Abstract: The tire has a tread portion axially divided into two shoulder land regions, two middle land regions and one crown land region by two shoulder circumferential grooves and two crown circumferential grooves. The middle land regions are each provided with a single longitudinal sipe, and first and second middle transverse grooves extending from the adjacent shoulder circumferential groove and crown circumferential groove, and terminated without being connected to the longitudinal sipe. The shoulder land regions are each provided with shoulder transverse grooves extending from tread edges and terminated within the respective shoulder land regions.

Abstract: A tire includes a tread portion including four circumferential grooves between outboard and inboard tread edges, and five land portions divided by the circumferential grooves. The circumferential grooves include an inboard shoulder circumferential groove located nearest to the inboard tread edge in the circumferential grooves. The land portions include an inboard shoulder land portion disposed axially outward of the inboard shoulder circumferential groove and having a ground contact surface with the smallest axial width in the land portions. The inboard shoulder land portion is provided with inboard shoulder lateral grooves and inboard shoulder sipes. The inboard shoulder lateral grooves include inner ends away from the inboard shoulder circumferential groove. The inboard shoulder lateral grooves extend axially outward from the inner ends to a location beyond the inboard tread edge. The inboard shoulder sipes extends from the inboard shoulder circumferential groove to a location beyond the inboard tread edge.

Abstract: An air compressor includes a motor, a compression mechanism configured to be driven by the motor to generate compressed air, a tank configured to store the compressed air, a controller configured to control driving of the motor, an air extraction port configured to extract compressed air from the tank, and an extraction pressure sensor configured to measure an extraction pressure that is a pressure of compressed air extracted from the air extraction port. The controller is configured to control the driving of the motor by referring to the extraction pressure.

Abstract: A tire 2 includes a tread 4, a pair of sidewalls 6, a pair of beads 10, a carcass 12, a belt 14, an inner liner 20, and a pair of insertion layers 22 disposed between the carcass 12 and the inner liner 20. Each insertion layer 22 is disposed between an end of the belt 14 and an end PB of the bead 10. Each insertion layer 22 has a volume resistivity of less than 108 ?·cm. A complex elastic modulus of the insertion layer 22 is equivalent to or higher than a complex elastic modulus of the inner liner 20. A thickness of each sidewall 6 at a maximum width position PW is not greater than 5.0 mm.

Abstract: A method for treating water including: passing water to be treated containing organic matters and ammonia nitrogen through a reaction tank containing a carrier for treatment under aerobic conditions, wherein a water content of the carrier is 50% or more and 96% or less; the carrier has continuous pores with a pore size of 30 ?m or less; an organic matter concentration in the water to be treated is 100 mg/L or less as a BOD5, and an ammonia nitrogen concentration is 50 mg/L or less; a retention time of the water to be treated in the reaction tank is 2 hours or less; and the organic matters and the ammonia nitrogen in the water to be treated are treated in the same tank.

Abstract: The elevator includes an amplifier to amplify an acoustic signal; and an induction loop having looped wires that generate a magnetic field by current output from the amplifier, in which plural wire harnesses forming the induction loop are electrically connected to one another by plural connectors, which the respective wire harnesses have, coupled to one another; and the plural wire harnesses include a first wire harness having a first connector which is connected to the connection line to the amplifier, a second connector which is connected to the connection line to the winding start of the induction loop, and a third connector which is connected to the connection line to the winding end of the induction loop, and an elongated second wire harness which forms at least a part of the looped electric wires and has a fourth connector at one end and a fifth connector at another end.

Abstract: The tire has a tread portion axially divided into two shoulder land regions, two middle land regions and one crown land region by two shoulder circumferential grooves and two crown circumferential grooves. The middle land regions are each provided with a single longitudinal sipe, and first and second middle transverse grooves extending from the adjacent shoulder circumferential groove and crown circumferential groove, and terminated without being connected to the longitudinal sipe. The shoulder land regions are each provided with shoulder transverse grooves extending from tread edges and terminated within the respective shoulder land regions.

Abstract: An air compressor includes a motor, a compression mechanism configured to be driven by the motor to generate compressed air, a tank configured to store the compressed air, a controller configured to control driving of the motor, an air extraction port configured to extract compressed air from the tank, and an extraction pressure sensor configured to measure an extraction pressure that is a pressure of compressed air extracted from the air extraction port. The controller is configured to control the driving of the motor by referring to the extraction pressure.

Abstract: A tyre includes a tread portion including first and second land portions. The first middle land portion is provided with first middle lateral grooves traversing the first middle land portion completely. The second middle land portion is provided with second middle lateral grooves traversing the second middle land portion completely. Each of the first middle lateral grooves and the second middle lateral grooves is a curved groove which includes a first convex portion located on a first side with respect to a groove-reference-straight-line that connects both ends of a groove centerline of the curved groove and a second convex portion located on a second side with respect to the groove-reference-straight-line, and a circumferential length of the groove-reference-straight-line of each first middle lateral groove is smaller than a circumferential length of the groove-reference-straight-line of each second middle lateral groove.

Abstract: A pneumatic tire includes a tread having main grooves extending in circumferential direction, and land portions partitioned by the main grooves. The main grooves include a pair of shoulder main grooves on tread edge sides, the land portions include a pair of shoulder ribs between the shoulder grooves and tread edges, rib has shoulder lug grooves extending from tread edge to axial direction inner side and having inner end terminated without reaching shoulder groove, and shoulder sipes extending from shoulder groove to axial direction outer side between adjacent lug grooves in the circumferential direction and having outer end terminated without reaching tread edge, and the ribs are forming such that circumferential direction length of first region between inner ends of sipe and adjacent lug groove is in range of 2 to 4 times circumferential direction length of second region between inner ends of sipe and the other adjacent lug groove.

Abstract: A tire 2 includes: a pair of beads 10 including cores 28; chafers 22, disposed near the beads 10, which are brought into contact with a rim; an inner liner 18 disposed inward of a carcass 32 in an axial direction; and an insulation 20 disposed between the carcass 32 and the inner liner 18 in the axial direction. The chafers 22 include bottom surfaces 22a that are brought into contact with the rim in portions inward of the cores 28 in a radial direction. The insulation 20 includes insulation lower portions 20a disposed between the cores 28 and the bottom surfaces 22a of the chafers 22 in the radial direction. The inner liner 18 includes inner liner lower portions 18a disposed between the cores 28 and the bottom surfaces 22a of the chafers 22 in the radial direction.

Abstract: A pneumatic radial tire 1 for a passenger car comprises a carcass 6 having a radial structure, a belt layer 7, and a tread portion 2. The tread portion 2 has an outer tread edge (To) and an inner tread edge (Ti). A tread pattern is formed in an asymmetric shape with respect to a tire equator (C). The tread portion 2 is divided into a plurality of circumferential land regions by a plurality of main grooves 10. The circumferential land regions include an outer shoulder land region 16, an inner shoulder land region 17, and a middle land region 18 arranged therebetween. The outer shoulder land region 16 is larger than the inner shoulder land region 17 with respect to rigidity in a tire circumferential direction and the rigidity in a tire axial direction.