摘要:
A power tool includes a hook portion having a hook holding portion, which is provided in a housing and has engaging teeth provided in the housing. A hook having a shaft portion is inserted into the hook holding portion and provided with fitting teeth meshing with the engaging teeth An elastic body is adapted to push the hook against a handle portion at all times, and a slip-off preventing part holding portion is adapted to move the hook in a direction of an axis thereof against a force of the elastic body and to cancel the mesh between the teeth to thereby enable the hook to turn.
摘要:
A telescopic actuator includes a motor, an input flange rotated by the motor, a male screw member coupled to the input flange, a female screw member threadedly engaged with the male screw member, an output rod coupled to the female screw member, the output rod being moved in an axial direction thereof to output a thrust force when the input flange is rotated, and a housing inside which the male screw member and the female screw member are accommodated. The input flange is supported by the housing such that a relative movement of the input flange with respect to the housing is allowed in a radial direction but restricted in the axial direction.
摘要:
A liquid polyethercarbonatediol compound, useful for producing a thermoplastic polyurethane having excellent weathering resistance, softness and stretchability, comprises a reaction product of (1) a carbonate-ester compound with (2) a polyetherdiol compound having, in the molecular structure thereof, structural units of -RO-(a) and structural units of —(CH2)—O-(b) and/or —CH2CH(CH3)—O-(c), in which reaction product, average molecular numbers n and m of the structural units (b) and (c), per mole of the structural units (a) satisfy the requirements: O≦n≦5, O≦m≦5 and 1
摘要:
A semiconductor laser device has a current injection region (A) and current non-injection regions (B) located closer to respective laser beam-emitting end faces than the current injection region is. The semiconductor laser device has an oxide layer (106A) formed at a surface of a p-type (AlpHa1-p)qIn1-qP (0≦p≦x, 0≦q≦1) intermediate band gap layer (106) in each of the current non-injection regions (B), a p-type GaAs cap layer (107) formed on the intermediate band gap layer (106) in the current injection region (A), and a p-type GaAs contact layer (125) formed on the oxide layer (106A) and the p-type GaAs cap layer (107).
摘要翻译:半导体激光器件具有电流注入区域(A)和位于比当前注入区域更靠近相应的激光束发射端面的电流非注入区域(B)。 半导体激光器件具有形成在p型(Al 1 H 1-p N)q L表面的氧化物层(106A) 在每个电流非注入区域(B)中的中间带隙层(106)中,在中间带隙层(106)中,在中间带隙层(106)中,在一个1-q个P(0 <= p <= x,0 <= q < 形成在电流注入区域(A)中的中间带隙层(106)上的p型GaAs覆盖层(107)和形成在氧化物层(106A)上的p型GaAs接触层(125)和 p型GaAs覆盖层(107)。
摘要:
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.
摘要:
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.
摘要:
In a compound semiconductor surface stabilizing method, a compound semiconductor is immersed in a solution containing sulfur ions, and then, the compound semiconductor is immersed in a solution containing cations, which react with sulfur to form a sulfide. These immersing steps form a sulfur layer and a sulfide layer in this order on a surface of the compound semiconductor.
摘要:
At least a lower cladding layer, an active layer for generating laser light, a first upper cladding layer, an etching stopper layer and a second upper cladding layer are stacked on a substrate. An impurity for restraining laser light absorption is diffused into the second upper cladding layer along a region where a light-emitting end surface is to be formed, under a condition that allows the etching stopper layer to maintain a function of stopping etching for the second upper cladding layer (First annealing process). Etching is performed until the etching stopper layer is reached such that the second upper cladding layer is left in a ridge shape. The impurity in the second upper cladding layer is re-diffused into the active layer to thereby cause local intermixing of the active layer in a portion extending along the light-emitting end surface and located just under the ridge (Second annealing process).
摘要:
In a motor-driven tool, a carbon brush part 8 is arranged between a suction port 6 and a commutator 11 of the motor and includes a cylindrical side wall 8a. The cylindrical side wall 8a located on an outer periphery of the commutator 11 is provided with a tapered portion 8b which grows wider toward the commutator 11 and grows narrower toward a coil end 10 of the armature. Between the carbon brush part 8 and the coil end 10, there is provided a heat radiating plate 4 made of metal and adapted to be engaged with the carbon brush part 8.