摘要:
Structures which are considered to be primarily useful as toys can be constructed utilizing members or arms adjustably mounted on a rotating shaft within the body of such a structure. By shifting the positions of such members or arms the type of movement of such a structure on a supporting surface can be varied. If desired, adjacent of such structures may be connected through the use of flexible couplings such as suction cups.
摘要:
An apparatus for projecting a light beam is disclosed which is constructed so as to simulate a gun. Within the apparatus a light bulb is mounted upon a base having a spherical surface. This base is resiliently engaged by a bearing having a correspondingly shaped interior in such a manner that the position of the bulb may be adjusted slightly so that the filament of the bulb is correctly positioned relative to a lens used in projecting a light beam. In the apparatus the bulb and the lens are separated by a shutter mechanism. The apparatus includes a trigger which, when actuated, first closes a switch to supply electric power to the light bulb and then causes the release of a shutter actuator serving to move the shutter so that it opens and closes within a comparatively short time interval.
摘要:
A game employing a gun capable of emitting a light beam can be played using a target apparatus which ejects objects each time this apparatus is approximately actuated by a light beam. The target apparatus includes a turntable which is capable of being rotated by a motor. The turntable includes a plurality of holders, each of which is adapted to hold an object to be ejected from the apparatus. An ejection lever is mounted on the base of the apparatus so as to be capable of ejecting an object from a holder positioned directly above it. After such an object is ejected the motor rotates the turntable. Structures are provided for returning the ejection lever to a position in which it can eject an object from an adjacent holder and for indexing the turntable so that an adjacent holder is above the lever as a result of such rotation of the turntable. A circuit including a photocell is provided on the apparatus for operation of the ejection lever so as to eject an object from a holder positioned above this lever.
摘要:
An electric tool adaptor is configured to be disposed between an electric tool and a battery pack and attached detachably with respect to the electric tool and the battery pack. This adaptor includes a DC-DC converter configured to increase or reduce a voltage of the battery pack to convert the voltage to a drive voltage of the electric tool and supply the drive voltage to the electric tool.
摘要:
A charger includes an output circuit unit to output a charging current to a secondary battery, a voltage detection unit to detect a voltage of the secondary battery, and a control unit to control the output circuit unit, whereby constant current charging and constant voltage charging are performed. The control unit decreases a constant current value of the charging current by stages during the constant current charging and determines that the secondary battery has deteriorated by using a first voltage drop value of the secondary battery occurring upon first conversion and a second voltage drop value of the secondary battery occurring upon second conversion.
摘要:
An electric power tool is included in a plurality of types of electric power tools. The plurality of types of electric power tools comprise a plurality of types of battery packs having different rated output voltages and a plurality of types of tool bodies, the housings of which are equipped with an attached part on which each of the battery packs is mounted in a freely removable manner. The attached part possessed by the plurality of types of tool bodies equipped with motors having different voltage characteristics is formed so as to be able to mount an arbitrary one of the plurality of types of battery packs having different rated output voltages. This makes it possible to widen the range of available battery packs and enhance convenience.
摘要:
The electric tool is powered by a secondary battery as a power source, and includes: an output section configured to be transmitted thereto a rotation of a motor directly or through a decelerator; a voltage measurement section that measures a battery voltage; a storage means that stores, as a reference voltage, a voltage value of the battery voltage measured preliminarily when a motor-lock is occurring; and a control means that controls a driving of the motor. The control means is configured to decide that the motor is being locked and then stop or decelerate the motor upon detecting that the battery voltage measured through the voltage measurement section is maintained lower than or equal to the reference voltage stored in the storage means for a predetermined period of time during the driving of the motor.
摘要:
A motor device includes an electric motor operated when supplied with power from a rechargeable battery, a voltage detection unit that detects voltage of the rechargeable battery, a determination unit that performs an abnormality determination based on a comparison of the voltage of the rechargeable battery, which is detected by the voltage detection unit, and a determination value, a control unit that controls the operation of the electric motor in accordance with the determination result of the determination unit, and a temperature detection unit that detects the usage environment temperature. The determination unit changes the determination value in accordance with the temperature detected by the temperature detection unit and performs the abnormality determination based on the changed determination value.
摘要:
A rotary tool includes an externally operable operation switch; a motor serving as a power source; a power transfer block for transferring the rotation of the motor; a load detection unit for detecting an amount of load of the motor; and a control unit for controlling the motor. The control unit is configured to perform an operation control by which the motor is controlled so that a rotation speed of the motor is increased in proportion to the operation amount of the operation switch and a feedback control by which the rotation speed of the motor is controlled depending on the detection result of the load detection unit. The control unit inhibits the feedback control during the time when the operation amount of the operation switch is equal to or less than a threshold and performing the feedback control only when the operation amount of the operation switch is greater than the threshold.
摘要:
To efficiently construct a three-dimensional model. A product is divided into two parts of a head portion and a neck portion. A head form 34 and a neck form 36 are selected as forms of a three-dimensional model. The basic dimensions of each part are inputted to calculate dimension values of each part, and a combination of a basic form and a cut part is selected in accordance with a table 38. If it is necessary to change the basic form of the neck form 36, the dimensions of a basic-form model 40 are changed to construct a model 42. Furthermore, a cut part 48 is selected, and the model 42 is processed to construct a model 50. Then, by combining a head-form model 52 and the neck-form model 50, a three-dimensional model 54 of a bolt is constructed.