摘要:
An IC card connector in which in the insertion space for one IC card, the insertion space for the other IC card is secured, and contact parts are disposed near the insertion slot. In the insertion slot for one IC card, the insertion space for the other IC card is disposed, which is narrower in width and one end of the height direction is located in the insertion slot for the one IC card, while at least a part of the insertion space is shared with the insertion space for the one IC card. A plate is disposed to partition the shared part of the insertion space for the one IC card to make the shared part as the insertion space for the other IC card. This plate has a mechanism that, when the one card is inserted while the other card is not, the plate is moved away from the insertion space for the one IC card and makes room therefor.
摘要:
A lubricating oil comprising a copolymer of monomers comprising as essential ingredients a compound represented by formula (1) and one of maleic anhydride, maleic acid, a salt of maleic acid, and an ester of maleic acid ##STR1## where Z represents a residue of a compound having from 2 to 8 hydroxyl groups; AO represents one or more kinds of oxyalkylene groups each having from 2 to 18 carbon atoms, provided that in the case of two or more kinds of oxyalkylene groups, the oxyalkylene groups are linked to one another in either a block or a random arrangement; R represents an alkenyl group having from 2 to 5 carbon atoms; R.sup.1 represents a hydrocarbon or acyl group having from 1 to 24 carbon atoms; and a.gtoreq.0, b.gtoreq.0, c.gtoreq.0, l is a positive integer, and m and n independently are 0 or a positive integer, provided that l+m+n=2 to 8, n/(l+m).ltoreq.1/2, and al+bm+cn=1 to 1,000.
摘要:
An electric work vehicle is provided in which the length of a high-tension cable connecting an electric motor included in a slewing motor with an inverter for controlling the electric motor can be set to be comparatively short. A region on a main frame is divided into three regions consisting of a center region, a first side region, and a second side region, via a first vertical rib and a second vertical rib. A slewing hydraulic motor and a slew assist electric motor, which constitute the slewing motor, are disposed in the center region, and an inverter for controlling the slew assist electric motor is disposed in a position near the second vertical rib in a second tool chamber provided in the second side region.
摘要:
By respectively abutting first and second outer diameter sections of a second metallic member against first and second inner diameter sections of a first metallic member, and energizing the first metallic member and the second metallic member using a pair of electrodes while pressurizing both metallic members in an axial direction thereof, a first junction where the first inner diameter section and the first outer diameter section are bonded and a second junction where the second inner diameter section and the second outer diameter section are bonded are formed between both metallic members, and a gap in which the metals do not come into contact with each other is formed between both junctions over a predetermined axial length. Accordingly, a high joint strength can be secured using less energy for bonding.
摘要:
A hybrid construction machine drives the upper swing structure using a hydraulic motor and an electric motor together and is capable of regenerating the energy of the upper swing structure in deceleration or stopping into electric power and using the regenerated electric power for assisting the hydraulic motor for driving the upper swing structure. The opening area characteristics of a meter-out restrictor and a bleed-off restrictor of a swing directional control valve are set to become larger than for construction machines driving the upper swing structure with the hydraulic motor alone. Torque of the electric motor is controlled so that the total sum of the actual torque occurring in the hydraulic and electric motors in deceleration or acceleration of the hydraulic motor equals the torque occurring when the opening area of the meter-out restrictor or the bleed-off restrictor is set at the prescribed opening area.
摘要:
By respectively abutting first and second outer diameter sections of a second metallic member against first and second inner diameter sections of a first metallic member, and energizing the first metallic member and the second metallic member using a pair of electrodes while pressurizing both metallic members in an axial direction thereof, a first junction where the first inner diameter section and the first outer diameter section are bonded and a second junction where the second inner diameter section and the second outer diameter section are bonded are formed between both metallic members, and a gap in which the metals do not come into contact with each other is formed between both junctions over a predetermined axial length. Accordingly, a high joint strength can be secured using less energy for bonding.
摘要:
The construction machine including an engine room having an engine, a radiator ii for cooling the engine, and a hydraulic pump which are arranged therein, and a counterweight area which is located adjacent to the engine room and in which batteries are installed, a ventilation passage for cooling the engine room and a ventilation passage for cooling the batteries are formed separately and independently in the substantially same direction, and a flowing direction of cooling air flowing in the ventilation passage for cooling the engine room and a flowing direction of cooling air flowing in the ventilation passage for cooling the batteries are substantially parallel to each other.
摘要:
[Object]To provide a cooling structure for a construction machine which can efficiently discharge heat generated in batteries and prevent exhaust air of an engine room from being sucked in the batteries.[Solution Means]In a cooling structure for a construction machine, the construction machine including an engine room 5 having an engine 4, a radiator 11 for cooling the engine 4, and a hydraulic pump 7 which are arranged therein, and a counterweight area 6 which is located adjacent to the engine room 5 and in which batteries 27 are installed, a ventilation passage 23 for cooling the engine room 5 and a ventilation passage 34 for cooling the batteries 27 are formed separately and independently in the substantially same direction, and a flowing direction of cooling air flowing in the ventilation passage 23 for cooling the engine room 5 and a flowing direction of cooling air flowing in the ventilation passage 34 for cooling the batteries 27 are substantially parallel to each other.
摘要:
A hybrid construction machine drives the upper swing structure using a hydraulic motor and an electric motor together and is capable of regenerating the energy of the upper swing structure in deceleration or stopping into electric power and using the regenerated electric power for assisting the hydraulic motor for driving the upper swing structure. The opening area characteristics of a meter-out restrictor and a bleed-off restrictor of a swing directional control valve are set to become larger than for construction machines driving the upper swing structure with the hydraulic motor alone. Torque of the electric motor is controlled so that the total sum of the actual torque occurring in the hydraulic and electric motors in deceleration or acceleration of the hydraulic motor equals the torque occurring when the opening area of the meter-out restrictor or the bleed-off restrictor is set at the prescribed opening area.
摘要:
Detecting light from a detecting light source (122) is irradiated to a workpiece (1) and the reflected light is detected by a photosensor (126). At the same time, light resulting from emission of plume produced upon laser processing is also detected by the photosensor (126). A laser controller (26) binary-codes a detection signal from the photosensor (126) to provide a rectangular wave signal (TP) and, based on the rectangular wave signal (TP), generates a trigger signal (TP.sub.2) for oscillating a processing laser beam. At this time, the trigger signal (TP.sub.2) is fed back to generate a gate signal (GP) and, based on the gate signal (GP), the detection signal resulted from the emission of the plume is omitted in the gate circuit (245) to produce a trigger signal (TP.sub.G). This trigger signal (TP.sub.G) is given with a delay time (T.sub.D) to produce a trigger signal (TP.sub.1). The above trigger signal (TP.sub.2) is generated in synch with the trigger signal (TP.sub.1). As a result, the laser processing is prevented from being applied unnecessarily based on the light generated upon the laser processing.