Abstract: A first aspect of the present invention is carbon fiber wherein the surface of a monofilament has a center line average roughness Ra of 6.0 nm or more and 13 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. A second aspect of the present invention is carbon fiber precursor acrylic fiber wherein the surface of a monofilament has a center line average roughness Ra of 18 nm or more and 27 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The carbon fiber according to the first aspect is obtained by stabilizing and carbonizing under specific conditions the carbon fiber precursor acrylic fiber according to the second aspect.

Abstract: An engine start control device is provided with: a starter relay that is provided between a battery and a starter motor; a start abnormality determining means that determines the occurrence of start abnormality of an engine; and a start control means, which turns on the starter relay, and starts supplying power from the battery to the starter motor in the cases where a start instruction signal is inputted from a start switch, and which turns off the starter relay in the cases where the start abnormality determining means determined the occurrence of start abnormality of the engine.

Abstract: A saddle riding vehicle includes a pair of left and right front forks (2L, 2R) configured to support a front wheel (Wf), a front fender (3) supported by the pair of left and right front forks (2L, 2R) and configured to cover the front wheel (Wf) from above, and an object information acquisition device (13) configured to image an outer side of the vehicle. An upper wall of the front fender (3) has an opening section (12) facing outside of the vehicle, and the object information acquisition device (13) is disposed in the opening section (12) such that an information acquisition part (13a) faces outside of the vehicle.

Abstract: An engine start control device is provided with: a starter relay that is provided between a battery and a starter motor; a start abnormality determining means that determines the occurrence of start abnormality of an engine; and a start control means, which turns on the starter relay, and starts supplying power from the battery to the starter motor in the cases where a start instruction signal is inputted from a start switch, and which turns off the starter relay in the cases where the start abnormality determining means determined the occurrence of start abnormality of the engine.

Abstract: A saddle riding vehicle includes a pair of left and right front forks (2L, 2R) configured to support a front wheel (Wf), a front fender (3) supported by the pair of left and right front forks (2L, 2R) and configured to cover the front wheel (Wf) from above, and an object information acquisition device (13) configured to image an outer side of the vehicle. An upper wall of the front fender (3) has an opening section (12) facing outside of the vehicle, and the object information acquisition device (13) is disposed in the opening section (12) such that an information acquisition part (13a) faces outside of the vehicle.

Abstract: To provide an arrangement structure of a sound system in a motorcycle which can ensure the operability of a sound operation unit while ensuring the visibility of a meter. In a motorcycle which arranges a meter indicating information on a vehicle and a sound operation unit for providing a reproduction operation or the like in a sound system in the vicinity of a steering portion, the meter and the sound operation unit are constituted as bodies separate from each other. The meter and the sound operation unit are arranged, as viewed in the axial direction of a head pipe which supports a steering portion, in front of and behind the head pipe.

Abstract: Provided is a method for preparing alkali cellulose having alkali distributed uniformly therein. A uniform alkali distribution in the alkali cellulose makes it possible to prepare cellulose ether which has been substituted uniformly in an etherification reaction step. The resulting cellulose ether does not contain a floating water-insoluble portion which will otherwise appear owing to insufficient substitution. More specifically, provided are a method for preparing alkali cellulose, comprising simultaneously feeding pulp powder and an aqueous alkali solution to a high speed disperser to continuously bring them into contact with each other and a method for preparing cellulose ether, comprising reacting the resulting alkali cellulose with an etherifying agent.

Abstract: A motorcycle includes a body frame having at least a pair of right and left or front and rear frame members with a storage box that is open upward between the pairing frame members. A riding seat covers the opening end of the storage box from above. The storage box includes a box main body arranged between the pair of frame members with a box constituent member that is detachably mounted below the box main body so as to form an electronic component storage chamber in cooperation with the box main body that composes a part of the wall portion of the storage box. The box constituent member is overlapped with at least a part of the frame members of a pair of frame members viewed in a plane with the box constituent member mounted to the box main body. The box constituent member bulges from the box main body.

Abstract: To simplify the switching between an automatic shift mode and a manual shift mode in a CVT. A selector switch is included in a switch unit provided on a handle bar at a position near a right grip and a shift switch is included in a switch unit provided on the handle bar at a position near a left grip. When the manual shift mode is selected, the shift switch functions as a shift control switch, whereas when the automatic shift mode is selected by the selector switch, mode selection for selecting any one of a first drive mode and a second drive mode, for example, can be made by the shift switch.

Abstract: To provide an arrangement structure of a sound system in a motorcycle which can ensure the operability of a sound operation unit while ensuring the visibility of a meter. In a motorcycle which arranges a meter indicating information on a vehicle and a sound operation unit for providing a reproduction operation or the like in a sound system in the vicinity of a steering portion, the meter and the sound operation unit are constituted as bodies separate from each other. The meter and the sound operation unit are arranged, as viewed in the axial direction of a head pipe which supports a steering portion, in front of and behind the head pipe.

Abstract: A motorcycle includes a body frame having at least a pair of right and left or front and rear frame members with a storage box that is open upward between the pairing frame members. A riding seat covers the opening end of the storage box from above. The storage box includes a box main body arranged between the pair of frame members with a box constituent member that is detachably mounted below the box main body so as to form an electronic component storage chamber in cooperation with the box main body that composes a part of the wall portion of the storage box. The box constituent member is overlapped with at least a part of the frame members of a pair of frame members viewed in a plane with the box constituent member mounted to the box main body. The box constituent member bulges from the box main body.

Abstract: In a vehicle including a plurality of containing portions, namely, a front containing portion provided in an inner cover covering from the rear side a head pipe of a vehicle body frame at its front end and constituting a part of a vehicle body cover which can be locked in a fully closed condition, to facilitate the operation for releasing the lock conditions of the plurality of containing portions. A plurality of lock release operating buttons for respectively releasing the locked conditions of a plurality of containing portions inclusive of a front containing portion is disposed at an inner cover on a lateral side of the front containing portion.

Abstract: A vehicle-use liquid crystal display device which is capable of securing high visibility even under a low temperature environment without increasing or enlarging power consumption is provided. A display vehicle speed Ddis is switched according to a hysteresis of ±0.7 kilometer per hour as shown in FIG. 6(b) under a normal or high temperature environment of not less than 45° C. with respect to a change in a vehicle speed shown in FIG. 6(a). Namely, even if the vehicle speed D changes between 51.4 kilometers and 52.6 kilometers, the display vehicle speed Ddis is held at 52 kilometers. The display vehicle speed Ddis is switched according to a hysteresis of ±1.0 kilometer per hour as shown in FIG. 6(c) under a low temperature environment of less than 45° C. Namely, even if the vehicle speed D changes between 51.1 kilometers and 52.9 kilometers, the display vehicle speed Ddis is held at 52 kilometers.

Abstract: Provided is a method for preparing alkali cellulose having alkali distributed uniformly therein. A uniform alkali distribution in the alkali cellulose makes it possible to prepare cellulose ether which has been substituted uniformly in an etherification reaction step. The resulting cellulose ether does not contain a floating water-insoluble portion which will otherwise appear owing to insufficient substitution. More specifically, provided are a method for preparing alkali cellulose, comprising simultaneously feeding pulp powder and an aqueous alkali solution to a high speed disperser to continuously bring them into contact with each other and a method for preparing cellulose ether, comprising reacting the resulting alkali cellulose with an etherifying agent.

Abstract: The present invention relates to a liquid crystal display for a vehicle and, particularly, to a liquid crystal display which adjusts liquid crystal drive voltage based on the temperature of a liquid crystal display panel so that the contrast of the liquid crystal display panel is optimum. The display includes a liquid crystal display panel, a circuit board for mounting circuit elements including a liquid crystal driver, a temperature sensor mounted on the circuit board, and a control circuit for controlling liquid crystal drive voltage based on temperature detected by the temperature sensor. The liquid crystal display panel and the circuit board are arranged parallel to each other in a meter housing with a predetermined space therebetween. The display also includes an exposed heat collection panel arranged to surround the screen of the liquid crystal display panel.

Abstract: In a vehicle including a plurality of containing portions, namely, a front containing portion provided in an inner cover covering from the rear side a head pipe of a vehicle body frame at its front end and constituting a part of a vehicle body cover which can be locked in a fully closed condition, to facilitate the operation for releasing the lock conditions of the plurality of containing portions. A plurality of lock release operating buttons for respectively releasing the locked conditions of a plurality of containing portions inclusive of a front containing portion is disposed at an inner cover on a lateral side of the front containing portion.

Abstract: To simplify the switching between an automatic shift mode and a manual shift mode in a CVT. A selector switch is included in a switch unit provided on a handle bar at a position near a right grip and a shift switch is included in a switch unit provided on the handle bar at a position near a left grip. When the manual shift mode is selected, the shift switch functions as a shift control switch, whereas when the automatic shift mode is selected by the selector switch, mode selection for selecting any one of a first drive mode and a second drive mode, for example, can be made by the shift switch.

Abstract: Pulp is ground by means of a vertical roller mill. The average particle diameter of the resulting powdered pulp is adjusted to 20-300 ?m. The powdered pulp thus obtained is used as a starting material for the production of cellulose ethers.

Abstract: A vehicle-use liquid crystal display device which is capable of securing high visibility even under a low temperature environment without increasing or enlarging power consumption is provided.

Abstract: The present invention relates to a liquid crystal display for a vehicle and, particularly, to a liquid crystal display which adjusts liquid crystal drive voltage based on the temperature of a liquid crystal display panel so that the contrast of the liquid crystal display panel is optimum. The display includes a liquid crystal display panel, a circuit board for mounting circuit elements including a liquid crystal driver, a temperature sensor mounted on the circuit board, and a control circuit for controlling liquid crystal drive voltage based on temperature detected by the temperature sensor. The liquid crystal display panel and the circuit board are arranged parallel to each other in a meter housing with a predetermined space therebetween. The display also includes an exposed heat collection panel arranged to surround the screen of the liquid crystal display panel.