Abstract: A cover which covers outer peripheries of fastening screws are disposed on an outer periphery of a hammer case. A stopper which detachably positions and fixes the cover to the outer periphery of the hammer case is disposed.

Abstract: A nail gun is capable of making wear resistance and light-weighted formation compatible with each other by enabling to make a wall thickness of a body or the like as thin as possible by providing a plurality of projected portions having heights in correspondence with wear limits of respective portions at respective portions of a body a head guard for guarding an exhaust cover and the like and reducing wear other than the projected portions.

Abstract: A fixing apparatus transports a recording medium carrying a developer image on it and heats the developer image to fix into the recording medium a heat roller extends in a direction of its rotational axis and generates heat. An endless belt is loosely entrained on a belt guide. A pressurizing mechanism engages the endless belt from inside and urges the endless belt against the first rotating body. When the rotating body rotates, the endless belt and the second rotating body are driven in rotation in such a way that the recording medium is pulled in between the first rotating body and the endless belt.

Abstract: To improve image quality upon preventing abrasion traces from strongly forming on a surface of a fusing member, an invented fusing device has a pressure member, a fusing member movably arranged as faced with the pressure member, and a contact element arranged in contact with an outer circumferential surface of the fusing member, with the surface roughness of the fusing member of 1.0 to 4.0 [?m]. When the fusing member is moved in contact with the contact element, the contact element rubs a surface of the fusing member, but in the fusing member, the portion in contact with the contact element and the portion not in contact with the contact element become about equal in the surface roughness with the above surface roughness.

Abstract: A powered tool having a first housing half and a second housing half coupled thereto to provide a sleeve section and a handle section suspended therefrom. These housing halves are made from a resin. A protection layer made from a material softer than that of the housing is distributed over the sleeve section and a handle section. A network pattern is provided as a part of the protection layer at the sleeve section. The network pattern is distributed over a parting face between the first and second housing halves. Further, a continuous web like pattern is also provided as a part of the protection layer at each lateral side of the sleeve section and each lateral side of the handle section.

Abstract: In a percussion tool such as an electric hammer or a hammer drill in which the axial direction of a motor 8 is substantially perpendicular to that of a tool bit 1 attached to a tool holder 2, a motor housing 3 is made of a hard material such as aluminum, and a tail cover 4 is disposed on the lower end of the motor housing 3, projections 3a and 3b which project beyond the tail cover 4 are disposed.

Abstract: A power tool includes a hook portion comprising a hook holding portion 20, which is provided in a housing 1 and has engaging teeth 47 provided in a housing 1, and also comprising a hook 2 having shaft portion 30, which is inserted into the hook holding portion 20 and provided with fitting teeth 31 meshing with the engaging teeth 47, an elastic body 27 adapted to push the hook 2 against a handle portion at all times, and a slip-off preventing part holding portion adapted to move the hook 2 in a direction of an axis thereof against a force of the elastic body 2 and to cancel the mesh between the teeth to thereby enable the hook 2 to turn.

Abstract: A power tool includes a hook portion comprising a hook holding portion 20, which is provided in a housing 1 and has engaging teeth 47 provided in a housing 1, and also comprising a hook 2 having a shaft portion 30, which is inserted into the hook holding portion 20 and provided with fitting teeth 31 meshing with the engaging teeth 47, an elastic body 27 adapted to push the hook 2 against a handle portion at all times, and a slip-off preventing part holding portion adapted to move the hook 2 in a direction of an axis thereof against a force of the elastic body 2 and to cancel the mesh between the teeth to thereby enable the hook 2 to turn.

Abstract: A fixing apparatus includes a fixing member, a guiding member, and spacers. The fixing member is heated while rotating. The fixing member is in pressure contact with a recording medium that is advancing so that the developer deposited on the recording medium is fused. The guiding member extends across a path of the recording medium so that a predetermined amount of gap is defined between the guiding member and the fixing member. The guiding member guides the recording medium to separate from the fixing member. The spacers are disposed at longitudinal end portions of the guiding member outside of the path between the fixing member and the guiding member to define the predetermined amount of gap. The spacers are movable in a direction at an angle with a surface of the recording medium. The urging member urges the spacers against the fixing member.

Abstract: An image forming apparatus includes an image-forming unit having a charging section and a developing section that are rotated together with a photoconductor in an idling manner. The charging section and developing section receive voltages while rotating. The apparatus includes a toner sensor and a controller. The toner sensor outputs a detection signal indicating that the toner has been replenished in the image-forming unit. In accordance with the detection signal, the controller changes the voltages, a time length during which the photoconductor, charging section, and developing section are rotated, or speeds at which the photoconductor, charging section, and developing section are rotated. The time length is extended or speeds are increased when the image-forming unit has been replaced.

Abstract: A portable tool includes a motive power section, a mechanical section driven by the motive power section, and an outer frame covering the motive power section and the mechanical section. A label or a sticker is affixed to an outer peripheral surface of the outer frame. The label contains specific pattern or specific color or specific character representing a specific user of the portable tool. The cover is made from a transparent resin and is removably disposed to the outer frame for protectingly covering the label. A sheet containing a plurality of labels having colors or pattern different from each other is provided. A user can select one of the labels.

Abstract: An electrophotographic image recording apparatus incorporates a fixing unit in which a toner image deposited on a print medium is fused by heat under pressure. The fixing unit includes a fixing member and a separator plate. The fixing member is in pressure contact with a pressure member. The separator plate that is disposed close to the fixing member and has a longitudinal portion extending in a direction transverse to a transport path of the print medium. The separator plate has a mid portion of the longitudinal portion. The mid portion has resiliency to extend away from the transport path and a guide member that pushes the mid portion of the separator plate to maintain the entire longitudinal portion flat so that mid portion is prevented from extending away from the transport path.

Abstract: A separating agent for enantiomeric isomers has an enantiomerically active polymer compound supported thereon. The polymer compound has an exothermic peak before a decomposition temperature of the polymer compound supported is reached in a differential calorimetric curve obtained in a process of temperature elevation in differential scanning calorimetry (DSC) on the separating agent. Also, disclosed is a method of evaluating asymmetry recognition ability of a separating agent for enantiomeric isomers. The method includes performing the differential scanning calorimetry (DSC) of a separating agent for enantiomeric isomers having supported thereon an enantiomerically active polymer compound to obtain a differential calorimetric curve in a process of temperature elevation therein, and observing presence or absence of an exothermic peak of the polymer compound in the differential calorimetric curve before a decomposition temperature of the supported polymer compound is reached.

Abstract: A power tool includes a hook portion comprising a hook holding portion 20, which is provided in a housing 1 and has engaging teeth 47 provided in a housing 1, and also comprising a hook 2 having a shaft portion 30, which is inserted into the hook holding portion 20 and provided with fitting teeth 31 meshing with the engaging teeth 47, an elastic body 27 adapted to push the hook 2 against a handle portion at all times, and a slip-off preventing part holding portion adapted to move the hook 2 in a direction of an axis thereof against a force of the elastic body 2 and to cancel the mesh between the teeth to thereby enable the hook 2 to turn.

Abstract: A power tool includes a hook portion comprising a hook holding portion 20, which is provided in a housing 1 and has engaging teeth 47 provided in a housing 1, and also comprising a hook 2 having a shaft portion 30, which is inserted into the hook holding portion 20 and provided with fitting teeth 31 meshing with the engaging teeth 47, an elastic body 27 adapted to push the hook 2 against a handle portion at all times, and a slip-off preventing part holding portion adapted to move the hook 2 in a direction of an axis thereof against a force of the elastic body 2 and to cancel the mesh between the teeth to thereby enable the hook 2 to turn.