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    • 1. 发明专利
    • CYLINDER LOCK
    • JPH07317385A
    • 1995-12-05
    • JP11263294
    • 1994-05-26
    • SECOM CO LTDKOKUSAI GIJUTSU KAIHATSU KK
    • MAEDA SHUJINAKAUCHI SHUNSAKUUENO YASUO
    • E05B47/00E05B49/00
    • PURPOSE:To provide an electronic lock that stably operates with limited watt consumption. CONSTITUTION:When an electronic key is inserted into a keyhole, a push plate 20 is pushed, and a key rod 21 is shifted, removing a latch of a plate spring 24 which is meshed with a spiral groove 29 of a turning shaft 28 of a motor 27 by dint of magnetic force of two magnets 24 and 25. In the case where the certified data transmitted from the electronic key is aright, the motor 27 operates and thereby the plate spring 24 shifts along the spiral groove 29, while a coupling pin 23 is projected to the outside of an inner cylinder 16, and it moves into an opening part 34 of a clutch disk 31 installed in a bolt driving shaft 30. In this state intact, the electronic key, the inner cylinder 16, and the bolt driving shaft 30 are integrally rotated, so an electronic lock is made lockable. When the electronic key is pulled out, the key rod 21 is shifted to some extent by dint of a spring 22, removing the plate spring 24 from the groove 29, and it is latched at the keyhole side. With this constitution, the coupling pin 23 is also housed in the inner cylinder 16, and thus the connection between the inner cylinder 16 and the bolt driving shaft 30 is released free.
    • 3. 发明专利
    • BORING MACHINE
    • JPH07166787A
    • 1995-06-27
    • JP31558893
    • 1993-12-15
    • KOKUSAI GIJUTSU KAIHATSU KK
    • UENO YASUO
    • E21B47/02E02D17/13E02F5/02E21B7/00E21B44/00E21B44/02
    • PURPOSE:To detect the inclination corresponding to the change of drilling status of an auger head by disposing a drilling sound detecting sensor in an auger head, and detecting a set stroke for detection of inclination by a controller when a drilling sound changes. CONSTITUTION:If an auger head 56 is out of contact with a soft rock, for example, it is judged whether it reaches a normal set drill stroke or not. At that time, the judgement is made by counting output pulses from a stroke detecting sensor 52, if not, the judgement is repeated, and if yes, a motor 40 is stopped. When a drilling sound of a head 56 changes, a set stroke is changed. Subsequently, while the head 56 is turned from the initial rotating position, an output value of an electric signal from an inclination angle detecting sensor 58 is input at every designated angle. Subsequently, an angle of inclination and the direction of inclination are operated from the initial rotating position and the collected data, and an angle of inclination is set within a designated allowable value. Thus, if the auger head 56 comes into contact with a soft rock or the like, the frequency of detection is increased so as to correct inclination more finely.
    • 5. 发明专利
    • DUSTPROOF DEVICE
    • JPH06221640A
    • 1994-08-12
    • JP2995993
    • 1993-01-26
    • KOKUSAI GIJUTSU KAIHATSU KK
    • UENO YASUOKATAGIRI YUKA
    • F24F9/00
    • PURPOSE:To prevent a window for the transmitting/receiving of an optical signal, which is used under a condition being set at a fixed location for a long period of time from being contaminated by a method wherein an air curtain is formed at a location which is away from the window by a specified distance, and a static air layer is formed between the window surface and the air curtain. CONSTITUTION:Air which enters a fan 1 from an air intake port 10 is blown down toward two windows 3 in such a manner that the air forms laminar air stream in parallel with wind shielding plates 9 toward the front surface of a space evenly by a partitioning plate 8 to the right and left and by a plurality of symmetrical blades respectively. As long as there is a uniform wind force, this air stream becomes an air curtain W1, and the wind itself is blown down toward a wall surface 6, and dust also blown in the same direction. Under this condition, a static air layer W2 is formed between the surface of a box body around the window 3 and the air curtain W1. By the forming of this static air layer W2, dust is prevented from adhering to the window 3, and at the same time, the dust can be prevented from accumulating in a groove part 5 in which dust is easy to be accumulated.
    • 6. 发明专利
    • LOOSENING PREVENTING WASHER
    • JPH04231714A
    • 1992-08-20
    • JP41533290
    • 1990-12-27
    • KOKUSAI GIJUTSU KAIHATSU KK
    • UENO YASUO
    • F16B39/24F16B43/00
    • PURPOSE:To securely prevent a bolt from becoming loose while enabling the bolt to be easily loosened by providing part of the outer circumference of a washer with cut and erected portions with their bending lines radially directed, providing a circumferential slit along the half of the circumference between the rest of the outer circumference and the inner circumference, and making the bow-shaped portion between the slit and the outer circumference warp back. CONSTITUTION:Approximately one half side of the outer circumference of a washer 1 is provided with a plural number of cut and erected portions 2 with their bending lines radially directed. The area between the rest of the outer circumference and the inner circumference is provided with a slit in the circumferential direction along approximately half of the circumference. The inner side of the bow-shaped portion 3 formed between the slit and the outer circumference is provided with irregularities 4 for engaging with the head 5 of a bolt. The bow-shaped portion 3 is made to warp back from the plane of the washer 1 in the direction opposite the cut and erected portion 2. When the bolt is tightened, the cut and erected portions 2 slide and rotate on the surface of a material to be tightened because the bending lines of the cut and erected portions 2 are radially directed. The cut and erected portions 2, however, do not rotate against the force to loosen the bolt because their tips cut into the surface of the material to be tightened.