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1. 发明专利

JPS62162453A KITCHEN KNIFE GRINDING APPARATUS 失效
公开(公告)号：JPS62162453A
公开(公告)日：1987-07-18
申请号：JP237086
申请日：1986-01-09
申请人： OTA TADASHI
发明人： OOTA TADASHI
IPC分类号： B24B3/36
摘要： PURPOSE:To enable even a non-professional to grind a kitchen knife skillfully, by a method wherein a disc-shaped grinding stone, adhered to a back plate, is mounted to a horizontal shaft for rotation, and a kitchen knife, horizontally guided on a guide roller, is pressed against the grinding stone obliquely from above by means of two rotary rollers. CONSTITUTION:Cover plates 16-18 are fitted in a side plate located this side of a sink for securing. Water is poured in a frame 14, a kitchen knife is placed through guides 6 and 7 in a space between the grinding stone 1 and a press roller 2, and is pressed with a force until it is brought into contact with a kitchen knife support 27 made of a material which is prevented from damage of a blade. When a handle 20 is rotated clockwise by a right hand and the grip of the kitchen knife is held by a left hand to move it longitudinally, the kitchen knife is held by a left hand to move it longitudinally, the kitchen knife is pressed and secured obliquely from above by means of two rollers 2, made of a material, prevented from damage of a blade, and rotates counterclockwise through a gear 23, to perform stable grinding. Meanwhile, the material, the hardness, and the grain size of the grinding stone are varied with a kind of the kitchen knife, the grinding stone 1 is adhered to a back plate, and is attached to a grinding stone attaching plate 15 by means of a nut 19.

2. 发明专利

JPS6287081A FRAME FOR MOUNTING SAFE ASH TRAY AND CHAIR TABLE 失效
公开(公告)号：JPS6287081A
公开(公告)日：1987-04-21
申请号：JP22839085
申请日：1985-10-15
申请人： OTA TADASHI
发明人： OOTA TADASHI
IPC分类号： A24F19/00 , A24F19/14

3. 发明专利

JPH109244A LOCKING NUT 失效
公开(公告)号：JPH109244A
公开(公告)日：1998-01-13
申请号：JP15985396
申请日：1996-06-20
申请人： OTA TADASHI
发明人： OOTA TADASHI
IPC分类号： F16B39/38
摘要： PROBLEM TO BE SOLVED: To provide a nut capable of being used even in a narrow fitting width, and excellent In the locking effect. SOLUTION: A groove part 1 notched from a bearing surface 5 side in the axial direction is formed on a part of a threaded hole of a main nut 2, and a locking member 3 in which ridges continuous to ridges 4a of the main nut 2 are received by the groove part 1 slidably in the axial direction. A projection part to be projected on the bearing surface 5 side is provided on an end part of the bearing surface 5 side of the locking member 3 in the pre-tightening condition to constitute a nut. When a bolt 11 is screwed in the main nut 2 and tightened in a condition where the locking member 3 is received, the projection part is abutted on a tightening member, and the locking member 3 slides by the groove part 1 in the axial direction of the threaded hole.

4. 发明专利

JPS62297058A MULTIUSAGE CUTTING MACHINE 失效
公开(公告)号：JPS62297058A
公开(公告)日：1987-12-24
申请号：JP13780086
申请日：1986-06-13
申请人： OTA TADASHI
发明人： OOTA TADASHI
IPC分类号： B24B27/06 , B23D45/04
摘要： PURPOSE:To permit the correct and speedy multiusage cutting for metal by the lightweight and portable captioned device which uses a resinoid grindstone and cuts the metal by the hydraulic pressure and the action of a return spring. CONSTITUTION:An arm 3 is lifted into the 3A state by stepping a hydraulic operating pedal. An H-shaped steel is suspended by a crane and placed onto a prescribed position of a bed 7, and installed by a stock vice 9. When a material is large, a stock vice 9 is installed furthermore onto a stock vice receiving part. Then, in order to set the arm 3 into the 3A state, the pedal is stepped forward, and a grindstone is brought into the cutting state. Cutting is started by an operating handle 6. The arm 2 is transferred properly according to the material to be cut. A jack 43 is fixed at a prescribed position for the safety of the cutter. When the cutter is transported, it is transferred by applying a wire onto a hook. The operating lever 6 is put into the operation state by loosening a handle 49. Since the installation of the operating lever 6 is of shearing system, stable fastening is permitted.

5. 发明专利

JPS60256415A WRINKLE STRETCHING APPARATUS FOR TROUSER OF SUITS 失效
公开(公告)号：JPS60256415A
公开(公告)日：1985-12-18
申请号：JP11174484
申请日：1984-05-31
申请人： OTA TADASHI
发明人： OOTA TADASHI
IPC分类号： D06F59/00 , A47G25/62 , D06F59/02

6. 发明专利

JP2001095121A ROD MATERIAL CONNECTION STRUCTURE 失效
公开(公告)号：JP2001095121A
公开(公告)日：2001-04-06
申请号：JP26587299
申请日：1999-09-20
申请人： OTA TADASHI , OTA TAKESHI , SHOJI SHINJI
发明人： OOTA TADASHI , OOTA TAKESHI , SHOJI SHINJI
IPC分类号： H02G1/06
摘要： PROBLEM TO BE SOLVED: To provide a rod material 1 and a connecting structure of rod material 1 assuring simple connection operation, having higher strength of connecting portion and having no stepped portion at the connecting portion and particularly a rod material 1 and a connection structure of the rod material 1 that can be used adequately as a wiring guide. SOLUTION: In a connection structure of a rod material 1 for connecting the rod materials 1 by forming a connecting hole 3 to the end of one rod material 1 and forming, at the end of the other rod material 1, a projected connecting part to be inserted to the connection hole 3, the connecting hole 3 and the cross-section of the projected connecting part 4 are formed in the square shape, a key groove 5 crossing the projected connecting part 4 is formed at the upper surface of the projected connecting part 4, a fixing key 6 that can be moved vertically to be removed for the key groove 5 of the projected connecting part 4 is provided within the connection hole 3, and a rock knob 11 is provided in the connecting hole 3 to push downward the fixing key 6 and holding the fixing key 6 to the condition where the key is inserted to the key groove 5, whereby the rod material 1 can be connected simply and strongly to form a stepped portion even at the connecting portion.

7. 发明专利

JPH10306819A LOCKING MEMBER AND LOCKING NUT 失效
公开(公告)号：JPH10306819A
公开(公告)日：1998-11-17
申请号：JP11462397
申请日：1997-05-02
申请人： OTA TADASHI
发明人： OOTA TADASHI
IPC分类号： F16B39/24
摘要： PROBLEM TO BE SOLVED: To provide a fastening means to be used even at a limited space and besides increase a locking effect. SOLUTION: A part of a screw hole 3 joined in a screwed in state with the screw thread 2a of a screw shaft is fitted in a taper recessed part 4 notched obliquely of an axis toward the center of the screw hole 3. In a state before fastening of the screw shaft, a protrusion part protruding to the seat surface side is formed and insertable in a taper recessed part 4 along with press to the protrusion part, and a locking member 1 provided with a screw thread 1a continued to a screw thread 3a of a screw hole 3 is arranged. The protrusion part on which fastening from the seat side is exerted is axially pressed, and the locking member 1 is advanced in the taper recessed part 4. As a result of bearing from a taper surface being applied and a stress in an orthogonal direction to an axis being exerted on the screw thread 1a of the locking member 1, the fastening force of a screw is increased, whereby a using screw shaft is shortened and a sufficient fastening force is ensured.

8. 发明专利

JPH11247824A LOCKING NUT 失效
公开(公告)号：JPH11247824A
公开(公告)日：1999-09-14
申请号：JP5380398
申请日：1998-03-05
申请人： OTA TADASHI , OTA TAKESHI
发明人： OOTA TADASHI , OOTA TAKESHI
IPC分类号： F16B39/10
摘要： PROBLEM TO BE SOLVED: To provide a nut capable of exerting a strong pressing force on a screw shaft for locking it after fastening the screw shaft with a prescribed torque. SOLUTION: The outer peripheral surface of a nut main body 1 having a tapped hole 2 threadedly engaged with a screw shaft is divided into an engaging part 3 with which a fastening tool engages and a circular lock part 4 formed on an end edge in a bearing surface side. A lock ring 5 with circular inner peripheral surface is externally fitted to the lock part 4. The lock part 4 is provided with a lock piece 8 defined by a lengthwise slit 6 which reaches the tapped hole 2 in the direction along the axis of the tapped hole 2 and a sideward slit 7 which reaches the tapped hole 2 in the direction transverse the axis of the tapped hole 2 with an end connected to the lengthwise slit 6. Before the nut main body 1 is fastened to the inner surface of the lock ring 5, the lock ring 5 is located in the end side of the lock piece 8. After the nut main body is fastened to the inner surface of the lock ring, the lock ring 5 is rotated. Thus, a protrusion 9, is provided. which engages with the outer peripheral surface of the u lock piece 8 and presses the lock piece to the screw shaft. Accordingly, a locked state in which the nut main body is not loosened and an unlocked state in which the nut main body can be freely threadedly engaged with the screw shaft can be selected depending on the rotating position of the lock ring 5.

9. 发明专利

JP2001047373A MONKEY WRENCH 失效
公开(公告)号：JP2001047373A
公开(公告)日：2001-02-20
申请号：JP22670199
申请日：1999-08-10
申请人： OTA TADASHI , OTA TAKESHI
发明人： OOTA TADASHI , OOTA TAKESHI
IPC分类号： B25B13/14
摘要： PROBLEM TO BE SOLVED: To provide a monkey wrench excellent in the operating easiness, free from loosening of the lower jaw part, and capable of moving the lower jaw smoothly and quickly. SOLUTION: The body 1 of a monkey wrench is furnished at its forefront with an upper jaw 2 formed in a single piece with the wrench body 1 and a lower jaw slide groove 3 in which a lower jaw 4 is fitted slidably as capable of contacting with and separating from the upper jaw 2, and a slide part 5 provided on the back face of the lower jaw 4 is positioned in a hatch 6 formed in the wrench body 1, and a fixing groove 9 consisting of recesses in stages parallel up and down is formed at the back face of the slide part 5 positioned within the hatch 6. A metal fixture 11 furnished at the side faces with projections to be fitted in the groove 9 is stored in the hatch 6 rotatably, and it is made practicable for the projection on the metal fixture 11 to be disengaged from the recess of the groove 9 by rotating the metal fixture 11, and the gap generated between the undersurface of the metal fixture 11 and the hatch in the condition that the projection is fitted in the recess, is filled with a gap adjusting member 13 so as to eliminate a play of the metal fixture 11 in the hatch, and thereby the lower jaw 4 is prevented from loosening.

10. 发明专利

JPH081547A IMPACT PART OF HAMMER 失效
公开(公告)号：JPH081547A
公开(公告)日：1996-01-09
申请号：JP14473994
申请日：1994-06-27
申请人： OTA TADASHI
发明人： OOTA TADASHI
IPC分类号： B25D1/12 , B25D1/02
摘要： PURPOSE:To reduce deformation quantity of an impact part to achieve a long life of it by forming it of a collective body of glass fibers as a core, and white alloy cast around it. CONSTITUTION:A head installation part 2 is fixed to a tip of a handle 1 by a pin 3, and hammer heads 4 are fixed to both ends of the head installation part 2 by pins 5. The hammer head 4 comprises a receiving base 6 of steel, and an impact part 7 of white alloy, and inside the impact part 7, a core 8 comprising a collective body of glass fibers is contained. This core 8 is contained into the impact part 7 by placing a container of white alloy in which the glass fibers are filled on an upper base 6 preliminarily before placing a casting mould of white alloy to be the impact 7 on the receiving base 6, and casting white alloy. Life of the impact part 7 of a hammer formed of white alloy can thus be elongated.

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