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51. 发明专利

JPH02195989A ROTARY WATER TANK FOR WASHING 失效
公开(公告)号：JPH02195989A
公开(公告)日：1990-08-02
申请号：JP1544989
申请日：1989-01-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOMENO HIROSHI , KAWASAKI OSAMU , SUMIHARA MASANORI
IPC分类号： D06F37/40
摘要： PURPOSE:To obtain a rotary water tank with good volume efficiency and having a motor drive section with a small volume by installing the rotary water tank on the inner periphery of a circular ultrasonic motor and integrally constituting the moving body of the ultrasonic motor and the water tank. CONSTITUTION:A circular ultrasonic motor 1 is constituted of a circular vibrator 2 and a circular moving body 3, and the vibrator 2 and the moving body 3 are brought into pressure contact with each other. The vibrator 2 is constituted of a metal body 5 stuck and fixed with a piezoelectric element 4. A cylindrical rotary water tank 6 is arranged on the inner periphery of the circular ultrasonic motor 1, and the partial outer periphery of the cylindrical rotary water tank 6 is integrally fixed with the moving body 3 of the ultrasonic motor 1. The moving body 3 in pressure contact with the vibrator 2 is rotated together with the cylindrical rotary water tank 6, and the holding torque corresponding to the product of the pressurizing force applied between the vibrator 2 and the moving body 3 and the friction coefficient, i.e., brake force, is generated when no electric power is fed. When the positive rotation and reverse rotation of the rotary water tank 6 are repeated, it is instantly rotated when the power is fed, and its rotation is instantly stopped when the power is cut off.

52. 发明专利

JPH0223075A ULTRASONIC MOTOR 失效
公开(公告)号：JPH0223075A
公开(公告)日：1990-01-25
申请号：JP17334388
申请日：1988-07-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NISHIKURA TAKAHIRO , TAKEDA KATSU , KAWASAKI OSAMU , IMASAKA YOSHINOBU , SUMIHARA MASANORI
IPC分类号： H02N2/00
摘要： PURPOSE:To stabilize an ultrasonic motor with a long life by forming a curable thin film layer made of a laminated thin film of oxide or the like on the contact face of the protrusion of a vibrator with a moving body. CONSTITUTION:In an ultrasonic motor, a disc-shaped piezoelectric ceramic element adheres to one main face of a disc-shaped elastic element 7 as a piezoelectric element 8, and a curable thin film layer 11 such as a thin film made, for example, of oxide, carbide such as SiO2, SiC, etc., is provided on the face of the other protrusion 10 in contact with a moving body 14. The body 14 is composed by applying a wear resistant frictional material 12 such as carbon fiber to an elastic material 13, and brought into pressure contact with the protrusion 10 of a vibrator 9 through the material 12. When an electric field is applied to the element 8 to drive it in this state, a traveling wave of the bending vibration in the circumferential direction of the vibrator 9 is excited, and the body 14 is rotatably moved by a frictional force. Thus, it can prevent a holding torque from rising due to a damage formed on the protrusion 10, and wear powder is reduced.

53. 发明专利

JPH0217872A ULTRASONIC MOTOR 失效
公开(公告)号：JPH0217872A
公开(公告)日：1990-01-22
申请号：JP16612488
申请日：1988-07-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOMENO HIROSHI , IMASAKA YOSHINOBU , SUMIHARA MASANORI
IPC分类号： H02N2/00
摘要： PURPOSE:To curb elapsed deterioration and to improve reliability by using a friction material of liquid crystal polymer or a friction material containing filler and combined by liquid crystal polymer. CONSTITUTION:An ultrasonic motor is constituted so that in its oscillation section an oscillating body 2 made of elastic body such as metal, etc., will be stuck and fixed to the surface of a piezoelectric body 1, while in its moving section a friction material 4 of liquid crystal polymer or the one containing friction adjustment filler and combined by liquid crystal polymer will be stuck and fixed to the contact surface of a metal moving body 3 and this surface will be pressurized to and brought into contact with the surface of the above oscillating body 2. At this time, the motor is driven by the frictional force between the oscillating body 2 and the friction material 4 integrated with the moving body 3 and coming into contact with the travelling wave front of the oscillating body 2. Since the friction material 4 is constituted by a material for friction of liquid crystal polymer or the one containing filler and combined by liquid crystal polymer, abrasion resistance is improved.

54. 发明专利

JPH01264581A ULTRASONIC MOTOR 失效
公开(公告)号：JPH01264581A
公开(公告)日：1989-10-20
申请号：JP9200988
申请日：1988-04-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOMENO HIROSHI , SUMIHARA MASANORI , IMASAKA YOSHINOBU
IPC分类号： H02N2/00
摘要： PURPOSE:To inhibit the generation of abnormal noises by bringing a friction material section into contact with the surface section of an annular type vibrator. CONSTITUTION:An ultrasonic motor has a vibrating section and a moving section, and the vibrating section is formed by bonding and fixing a vibrator 2 having a projecting section 2A and made of an elastic body composed of a metal, etc., onto the surface of a piezoelectric body 1. The moving section consists of a moving body 3 and a friction material 4, and the friction material 4 in width narrower than the width of said projecting section 2A is mounted and shaped fastened to the moving body 3. The surface of the friction material 4 is brought into contact with the surface of the projecting section 2A without being brought into contact with the inner circumference and outer circumference of said projecting section 2A at that time. Accordingly, the generation of abnormal noises is inhibited, and electro-mechanical-energy conversion efficiency is improved.

55. 发明专利

JPS63302773A ULTRASONIC WAVE MOTOR 失效
公开(公告)号：JPS63302773A
公开(公告)日：1988-12-09
申请号：JP13334487
申请日：1987-05-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMASAKA YOSHINOBU , SUMIHARA MASANORI , KOMENO HIROSHI
IPC分类号： H02N2/00
摘要： PURPOSE:To avoid noise and increase a driving force, by using resin material for a moving unit, and by placing lubricant on the surface between the moving unit and a stationary unit in contact with each other. CONSTITUTION:An ultrasonic wave motor is composed of a stationary unit 2 provided with a piezoelectric unit 1, in pressure contact with a moving unit 3 made of resin material. In this case, on the field surface between the stationary unit 2 and the moving unit 3 in contact with each other, lubricant 4 is placed. As the resin material of the moving unit 3, phenol resin, fluororesin, or the like is used, and in order to increase the strength, glass fiber, carbon fiber, or the like is included in the resin. As the lubricant 4, liquid lubricant or semi-solid lubricant is used. As a result, even if the lubricant 4 to reduce friction is placed on the surface between the stationary unit 2 and the moving unit 3 in contact with each other, a great driving force can be obtained and a device can be stably driven for a long time.

56. 发明专利

JPS63265574A ULTRASONIC MOTOR 失效
公开(公告)号：JPS63265574A
公开(公告)日：1988-11-02
申请号：JP9782887
申请日：1987-04-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMASAKA YOSHINOBU , SUMIHARA MASANORI , KOMENO HIROSHI
IPC分类号： H02N2/00
摘要： PURPOSE:To reduce the amount of abrasion and increase the torque of the title motor, by constituting the contacting surface of a moving body with a plastic material including fluorocarbon polymer. CONSTITUTION:An ultrasonic motor is constituted of a stator body 2, mounted on a piezo-electric body 1, and a moving body 3, contacting with the moving body 3 under a pressurized condition. The moving body 3 is constituted of a friction contacting unit 4, consisting of a plastic material at least containing fluorocarbon polymer, and a power transmitting unit 5. According to this method, the fluorocarbon polymer warks on the surface of frictional contact as a solid lubricant whereby smooth slip between the stator body 2 and the moving body 3 may be realized.

57. 发明专利

JPS63257475A ULTRASONIC MOTOR 失效
公开(公告)号：JPS63257475A
公开(公告)日：1988-10-25
申请号：JP8940887
申请日：1987-04-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOMENO HIROSHI , IMASAKA YOSHINOBU , SUMIHARA MASANORI
IPC分类号： H02N2/00
摘要： PURPOSE:To improve the reliability of the title apparatus by constituting a friction material fixed to the contact surface between a vibrator and a moving body and composed of plastic materials containing at least a lubricating oil. CONSTITUTION:An ultrasonic motor is composed of a piezoelectric body 1, a metal vibrator 2 bonded and fixed to the surface of said body 1, and a moving body 3. In this case, a friction material 4 composed of plastics containing a lubricating oil is fixed to the moving body 3 to constitute said motor. Further, the vibrator 2 and the friction material 4 are pressurized and contacted by a fastening force. Thus, when a high-frequency electric field with resonance frequency is inputted to the piezoelectric body 1, a progressive wave is generated in the piezoelectric body 1 and the vibrator 2, and the friction material 4 is driven integrally with the moving body 3 by a frictional force between said material 4 and the vibrator 2.

58. 发明专利

JPS631381A ULTRASONIC MOTOR 失效
公开(公告)号：JPS631381A
公开(公告)日：1988-01-06
申请号：JP14196186
申请日：1986-06-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMASAKA YOSHINOBU , SUMIHARA MASANORI , KOMENO HIROSHI
IPC分类号： H02N2/00
摘要： PURPOSE:To suppress the vibration of a moving unit and a noise by composing the moving unit through a vibration absorber between the contact pressurizing surface with a stationary unit and an external power transmission unit. CONSTITUTION:A moving unit is contacted under pressure with a stationary unit 2 on which a piezoelectric unit 1 is mounted. The moving unit has a power transmission unit 3 for transmitting a driving force to an exterior, a vibration absorber 4 for absorbing an unnecessary vibration, and a pressure contactor 6 on which a sheetlike molding 5 is mounted. The unit 3 transmits the driving force to the exterior, and the contactor 6 transmits an ultrasonic vibration with a traveling wave from the unit 3 efficiently to obtain a driving force. The absorber 4 uses a porous structure like a foamable plastic, rubber material, such as natural rubber, styrene-butadiene rubber.

59. 发明专利

JPS62196082A ULTRASONIC MOTOR 失效
公开(公告)号：JPS62196082A
公开(公告)日：1987-08-29
申请号：JP3596486
申请日：1986-02-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMASAKA YOSHINOBU , SUMIHARA MASANORI , KOMENO HIROSHI
IPC分类号： H02N2/00 , H01L41/09
摘要： PURPOSE:To suppress the generation of noise and increase driving torque and reduce abrasion loss, by organizing a stationary section with a fitted piezo-electric unit, with a composite plastic member including fiber at least. CONSTITUTION:A moving section 3 is made to come in pressure contact with a stationary section 1 with a fitted piezo-electric unit 2, and on the piezo-electric unit 2, slight oscillation along with a progressive wave is generated. The moving section 3 is moved by the slight oscillation via a frictional force. The stationary section 3 is organized with a plastic member including fiber at least, for example, a plastic member including approx. 70% carbon fiber.

60. 发明专利

JPS6244080A ULTRASONIC MOTOR 失效
公开(公告)号：JPS6244080A
公开(公告)日：1987-02-26
申请号：JP18204285
申请日：1985-08-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOMENO HIROSHI , IMASAKA YOSHINOBU , SUMIHARA MASANORI , TOKUSHIMA AKIRA
IPC分类号： H01L41/09 , H02N2/00
摘要： PURPOSE:To reduce the wearing amount of a slide material formed of aromatic polyamide fiber and resin by contacting under pressure the slide material with an ultrasonic vibrator to increase a starting torque. CONSTITUTION:A metal 2 is bonded fixedly to the surface of a piezoelectric unit 1. A slide material 4 is bonded fixedly to a movable unit 3. The material 4 is formed at least of aromatic polyamide fiber and resin. The unit 3 is driven in the prescribed direction through the metal 2 and the material 4 by a surface traveling wave generated by the unit 1.

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