Abstract: A monitoring camera includes an imaging unit that generates image data; a division processing unit that divides the image into a processible image and a target image when a processing load of image processing to be executed on the image is more than a predetermined load; an image processing unit that executes the image processing on the processible image; and a transmitting unit that transmits a first image processing result that is a result of the image processing executed on the processible image and target image data. The terminal includes: a communication unit that receives the first image processing result and the target image data; an image processing unit that executes image processing on the target image indicated by the target image data; and a managing unit that acquires one result by integrating the first image processing result and a second image processing result.

Abstract: A power transmission device is capable of switching the rotation direction of a drive shaft between positive rotation and negative rotation as power is transmitted to the drive shaft from a drive source via the power transmission device. To cause positive rotation of the drive shaft, only the positive rotation belt is tensed by the belt switching means, and rotation from the positive rotation drive pulley is transmitted to the drive shaft via the positive rotation shaft. To cause negative rotation of the drive shaft, only the negative rotation belt is tensed by the belt switching means, and rotation from the negative rotation drive pulley is transmitted to the drive shaft via the negative rotation shaft.

Abstract: An operation lever structure wherein an operation lever is pulled toward a left handle to cause a link to swing-move to thereby operate an operation cable. The operation lever structure is configured so that each of inside and outside rollers are provided to an opposite end of the link. Inside and outside guide holes for movably supporting the inside and outside rollers are formed in each of a pair of inside and outside side walls. A discharge opening is formed in a bottom part of the operation lever for discharging a foreign matter that has entered the operation lever.

Abstract: An automatic residual fuel vent device for a carburetor, the device including a fuel supply passage (15) connecting a fuel tank (TF) and a float chamber (10), a negative pressure passage (17) connecting an intake passage (8) and a negative pressure operating chamber (53) of a diaphragm pump (PD), a fuel vent passage (16) connecting the float chamber (10) and the fuel tank (TF), a single changeover cock (CO) provided so as to straddle the fuel supply passage (15) and the negative pressure passage (17), a negative pressure surge tank (TS) provided in the negative pressure passage (17), and the diaphragm pump (PD), which is connected to the fuel vent passage (16) and is operated by negative pressure of the negative pressure surge tank (TS), residual fuel of the float chamber (10) being returned to the fuel tank (TF) by the diaphragm pump (PD) operated by negative pressure from the negative pressure surge tank (TS) in accordance with the changing over of the changeover cock (CO).

Abstract: An automatic residual fuel vent device for a carburetor, the device including a fuel supply passage (15) connecting a fuel tank (TF) and a float chamber (10), a negative pressure passage (17) connecting an intake passage (8) and a negative pressure operating chamber (53) of a diaphragm pump (PD), a fuel vent passage (16) connecting the float chamber (10) and the fuel tank (TF), a single changeover cock (CO) provided so as to straddle the fuel supply passage (16) and the negative pressure passage (17), a negative pressure surge tank (TS) provided in the negative pressure passage (17), and the diaphragm pump (PD), which is connected to the fuel vent passage (16) and is operated by negative pressure of the negative pressure surge tank (TS), residual fuel of the float chamber (10) being returned to the fuel tank (TF) by the diaphragm pump (PD) operated by negative pressure from the negative pressure surge tank (TS) in accordance with the changing over of the changeover cock (CO).

Abstract: A power transmission device is capable of switching the rotation direction of a drive shaft between positive rotation and negative rotation as power is transmitted to the drive shaft from a drive source via the power transmission device. To cause positive rotation of the drive shaft, only the positive rotation belt is tensed by the belt switching means, and rotation from the positive rotation drive pulley is transmitted to the drive shaft via the positive rotation shaft. To cause negative rotation of the drive shaft, only the negative rotation belt is tensed by the belt switching means, and rotation from the negative rotation drive pulley is transmitted to the drive shaft via the negative rotation shaft.

Abstract: An operation lever structure wherein an operation lever is pulled toward a left handle to cause a link to swing-move to thereby operate an operation cable. The operation lever structure is configured so that each of inside and outside rollers are provided to an opposite end of the link. Inside and outside guide holes for movably supporting the inside and outside rollers are formed in each of a pair of inside and outside side walls. A discharge opening is formed in a bottom part of the operation lever for discharging a foreign matter that has entered the operation lever.

Abstract: An agricultural wheel tire has a tire tread having first and second lateral edges defining the width of the tire tread, and two sets of lugs. Each lug of the first set extends from a center of the tread width and terminates at the first lateral edge of the tire tread. Each lug of the second set extends from the center of the tread width and terminates at the second lateral edge of the tire tread. The first and second sets of lugs extend in an alternating manner in a circumferential direction of the tire tread so that corresponding side and end surfaces of adjacent first and second lugs and corresponding surfaces of the tire tread form substantially spherical-shaped depressed portions of the tire tread.

Abstract: An underwater scooter including a main frame on which are disposed two air tanks serving as a saddle area for the operator, a depth adjusting mechanism disposed to the fore of the air tanks, and a steering mechanism disposed to the aft of the air tanks. The depth adjusting mechanism can be swiveled freely around a vertical axis using a swivel mechanism, and moreover the angular displacement in this swiveling is transmitted by a swivel angle displacement transmission mechanism to the steering mechanism so that a rudder swivels around a vertical axis, and thus while the underwater scooter is traveling, the operator can ride upon the main frame and also adjust the depth of travel and direction of forward motion of the underwater scooter by manipulating the depth adjusting mechanism and steering mechanisms. Thus, the burden on the operator is reduced in comparison to that of the conventional types of scooters that tow the operator.

Abstract: An underwater scooter includes a watertight vessel enclosing an engine disposed in the fore part of a cylindrically shaped main frame, a propeller disposed in the aft area, and a driveshaft passes through the interior of the main frame and transmits the output of the engine to the propeller. An operator rides upon air tanks disposed between the engine and the propeller on the main frame, so the burden on the operator can be reduced in comparison to that of conventional types that tow the operator. In addition, the propeller is disposed aft of the operator and also the exhaust gas from the engine is exhausted aft of the operator, so there is no risk of either the jet of water ejected by the propeller or the exhaust gas reducing the field of view or causing articles (goggles, etc.) worn by the operator to come off.

Abstract: An underwater scooter is provided with an engine enclosed in a watertight vessel and an electric motor enclosed in the watertight vessel and connected to the output shaft of the engine, and a propeller disposed upon a main frame and connected to the output shaft of the motor to be driven and turned by at least one of the engine and the motor so as to propel the scooter. In other words, the scooter is a hybrid type having the engine and electric motor as the drive power of the propeller. With this, the operator can easily re-start, once stopped on the surface of the water or underwater. Moreover, since the propeller can be driven even by the engine, a distance of travel is elongated with less increased weight, when compared to the case that the propeller is driven solely by the engine.

Abstract: An underwater scooter including a main frame on which are disposed two air tanks serving as a saddle area for the operator, a depth adjusting mechanism disposed to the fore of the air tanks, and a steering mechanism disposed to the aft of the air tanks. The depth adjusting mechanism can be swiveled freely around a vertical axis using a swivel mechanism, and moreover the angular displacement in this swiveling is transmitted by a swivel angle displacement transmission mechanism to the steering mechanism so that a rudder swivels around a vertical axis, and thus while the underwater scooter is traveling, the operator can ride upon the main frame and also adjust the depth of travel and direction of forward motion of the underwater scooter by manipulating the depth adjusting mechanism and steering mechanisms. Thus, the burden on the operator is reduced in comparison to that of the conventional types of scooters that tow the operator.

Abstract: An underwater scooter is provided with an engine enclosed in a watertight vessel and an electric motor enclosed in the watertight vessel and connected to the output shaft of the engine, and a propeller disposed upon a main frame and connected to the output shaft of the motor to be driven and turned by at least one of the engine and the motor so as to propel the scooter. In other words, the scooter is a hybrid type having the engine and electric motor as the drive power of the propeller. With this, the operator can easily re-start, once stopped on the surface of the water or underwater. Moreover, since the propeller can be driven even by the engine, a distance of travel is elongated with less increased weight, when compared to the case that the propeller is driven solely by the engine.

Abstract: An underwater scooter includes a watertight vessel enclosing an engine disposed in the fore part of a cylindrically shaped main frame, a propeller disposed in the aft area, and a driveshaft passes through the interior of the main frame and transmits the output of the engine to the propeller. An operator rides upon air tanks disposed between the engine and the propeller on the main frame, so the burden on the operator can be reduced in comparison to that of conventional types that tow the operator. In addition, the propeller is disposed aft of the operator and also the exhaust gas from the engine is exhausted aft of the operator, so there is no risk of either the jet of water ejected by the propeller or the exhaust gas reducing the field of view or causing articles (goggles, etc.) worn by the operator to come off.

Abstract: A walk-behind tiller has a body and a pair of wheels mounted on the body for undergoing rotation to cause the walk-behind tiller to undergo travelling along a ground surface. A tilling device is mounted on the body for undergoing a first movement operation in which the tilling device travels along the ground surface while the tilling device is disposed in spaced-apart relation to the ground surface, a second movement operation in which the tilling device tills the ground, and a third movement operation in which the tilling device is maintained generally horizontal to the ground surface.

Abstract: An agricultural wheel tire having on its periphery a plurality of first lugs and a plurality of second lugs provided circumferentially in an alternating manner is provided. A depressed portion formed by adjacent two first lugs and a second lug located between the first lugs has a spherical shape. A depressed portion formed by adjacent two second lugs and a first lug located between the second lugs also has a spherical shape. The soil is hardened within the spherical depressed portions, preventing the tire from sinking.

Abstract: A walk-behind tiller having a loop-shaped handle is provided. An operating portion of a rear portion of the handle includes left and right horizontal grips, left and right rising portions and a cross portion interposed between the rear ends of the rising portions. For holding the tiller substantially horizontally, the left and right horizontal portions are held. For tilling operations, the left and right rising portions are held. For pushing down the handle, the cross portion is held.