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31. 发明专利

JP2000070595A CLOTHING DRYING MACHINE 失效
公开(公告)号：JP2000070595A
公开(公告)日：2000-03-07
申请号：JP24810598
申请日：1998-09-02
申请人： HITACHI LTD
发明人： KIMURA HIDEYUKI , OGOSHI KENICHI , KOMATSU TSUNETOSHI , YAGI KEIJIROU , MUNAKATA HIDEAKI
IPC分类号： D06F58/02
摘要： PROBLEM TO BE SOLVED: To provide a high labyrinth effect even when annular seals of a labyrinth seal are mutually engaged or overlapped shallowly concerning a clothing drying machine equipped with the labyrinth seal. SOLUTION: Main resistance for the labyrinth effect for increasing the channel resistance of the labyrinth seal is obtd. by shape resistance caused by the rapid alternate change of a channel cross-sectional area. As one of structures for obtaining the rapid alternate change of the channel cross-sectional area, a rapid reduction part 21a and a rapid expansion part 22a of the channel cross- sectional area or the like are alternately formed by making shallow engage depth We of annular seals 15 (15a, 15b and 15c) from a wall part 5a for fan side seal provided at the outer peripheral part of a double side fan 5 and annular seals 16 (16a, 16b and 16c) from a wall part 14a for casing side seal provided on a casing 14. Therefore even when the annular seals are mutually engaged shallowly, the high labyrinth effect can be presented.

32. 发明专利

JPH10305197A ROTARY DRUM TYPE CLOTHING DRIER 失效
公开(公告)号：JPH10305197A
公开(公告)日：1998-11-17
申请号：JP11898197
申请日：1997-05-09
申请人： HITACHI LTD
发明人： OGOSHI KENICHI , YAGI KEIJIROU , MUNAKATA HIDEAKI
IPC分类号： D06F58/02 , D06F58/08 , D06F58/28
摘要： PROBLEM TO BE SOLVED: To provide a rotary drum type clothing drier by which sweaters made of wool easy to be shrunk and damaged by stirring of a rotary drum can be dried without the waste of heat value of drying hot air and efficiently, and further the damage of clothing caused by temperature can be prevented. SOLUTION: This drier includes a rotary drum 2, a blower, a heat source 3, an electric motor 5 for driving in rotation the rotary drum 2 and a blowing fan 8, and a clutch 25 which transmits the rotating speed of the electric motor 5 in one rotating direction, but races in the other rotating direction not to transmit the same, wherein the rotary drum 2 is driven through the clutch 25, and during the rotation in the direction of not transmitting the rotating force of the electric motor 5 to the rotary drum 2, the air quantity of the blower is lowered more than that during the rotation in the direction of transmitting the rotating force of the electric motor 5 to the drum.

33. 发明专利

JPH10286399A CLOTHING DRIER 失效
公开(公告)号：JPH10286399A
公开(公告)日：1998-10-27
申请号：JP9341597
申请日：1997-04-11
申请人： HITACHI LTD
发明人： TADOKORO TADAHARU , OGOSHI KENICHI
IPC分类号： D06F58/02
摘要： PROBLEM TO BE SOLVED: To reduce fouling of an object to be dried, a lower part of a clothing drier, a door packing and the like by sand, dust and the like scattering from the object to be dried by providing an opening at a lower part of a cloth feeding port in the clothing drier which dries the object to be dried by rotary agitation thereof in a rotary drum. SOLUTION: In a drying cycle, an object 2 to be dried is rotated and stirred up in a driven rotary drum 3 and, for example, when it is moved to contact a part (a) of a frame 9 or in the direction of the arrow B to contact a part (b) of a door 6, the sand, dust or the like contained in the object 2 to be dried is extruded outside by an impact or the like upon the contact to be dropped into a lower part of a clothing feeding port 8. When the object moves in the direction E to be rubbed by a corner part (c) of the clothing feeding port 8, the sand, dust or the like contained in the object to be dried is extruded outside to be scattered onto the clothing feeding port 8. So, an opening part 21 is provided on the clothing feeding port 8 or a housing part 22 is provided at a lower part of the opening part 21 to house the dropped object thereby collecting the sand, dust or the like dropped or scattered.

34. 发明专利

JPH10277292A DRYER FOR CLOTHES 失效
公开(公告)号：JPH10277292A
公开(公告)日：1998-10-20
申请号：JP9185497
申请日：1997-04-10
申请人： HITACHI LTD
发明人： YAGI KEIJIROU , OGOSHI KENICHI , MUNAKATA HIDEAKI
IPC分类号： D06F58/02
摘要： PROBLEM TO BE SOLVED: To always obtain an efficient dried condition and reduce the drying time and the electric power consumption and further the drying cost, by automatically opening/closing a shutter in accordance with the condition whether or not a drying shelf is charged in the drying chamber and opening the shutter when the drying shelf is charged. SOLUTION: When a drying shelf 19 is set in a feed opening 3 of clothes as shown in the drawing, the hinge 19a of the drying shelf 19 gets into contact with a shelf-detection sensor 22 installed at the feed opening 3 of clothes and constituted of a piezoelectric element or the like and signal currents flow to detect the drying shelf 19. This detected signal is processed by a controller to drive a drive motor 18-1 for the shutter and open the shutter 18 by operating a drive cam 18-2 for the shutter. To the contrary, when the drying shelf 19 is removed from the feed opening 3 of clothes, the shutter 18 is closed. In this way, when the drying shelf 19 is set at the opening, the shutter is automatically opened and when it is removed from the opening, the shutter is automatically closed to execute a partly exhausting type drying.

35. 发明专利

JPH07265595A ROTARY DRUM TYPE CLOTHES DRYER 失效
公开(公告)号：JPH07265595A
公开(公告)日：1995-10-17
申请号：JP6248194
申请日：1994-03-31
申请人： HITACHI LTD
发明人： OGOSHI KENICHI
IPC分类号： D06F58/28
摘要： PURPOSE:To provide a rotary (drum-type) clothes dryer which can perform detection of a motor rotating speed by which detection of a disorder such as a motor lock and a drum lock can be dealed with and which can also be utilized in the control of motor rotating speed and on which various type of disorder detection and control of the motor rotating speed are based, by one detecting means, not to mention that disorders such as cutting and off-position of a drum belt or the like can be detected. CONSTITUTION:A rotary drum clothes dryer is provided with a control means which operation-controls a heat source 3 and a motor 5 based on a rotating speed detected by a rotating speed detecting means 25, as well as is provided with the rotating speed detecting means 25 which detects the rotating speed of a tension pulley 23 which gives a tension to a drum belt 4 for driving a rotary drum 2 in rotation.

36. 发明专利

JPH06327898A GARMENT DRYER 失效
公开(公告)号：JPH06327898A
公开(公告)日：1994-11-29
申请号：JP11677293
申请日：1993-05-19
申请人： HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： SANO SOICHI , OGOSHI KENICHI , ISHIKAWA YASUO , SATO AKIO , HARADA YOSHITAKA
IPC分类号： D06F58/02 , D06F58/28
摘要： PURPOSE:To prevent the room temperature from abnormally rising even though the drying time is shortened, to incorporate an economical heat-exchanger having a small size but a high heat-exchanging function so as to have a small size body which is excellent in installation, and simultaneously to reduce noise from a blower fan. CONSTITUTION:A heat-exchanging fan 8 is composed of an air-cooled heat- exchanging part 23 and a water-cooled heat-exchanging part 25, the air-cooled heat-exchanging part 23 being located in the inner peripheral side which is the upstream side in the flow of drying air, and being composed of blades having a corrugated sectional shape. Further, the water-cooled heatexchanging part 25 is located on the outer peripheral side which is the downstream side in the flow of the drying air, and being composed of comb-like cross-sectional blades which are projected only toward the drying air side. A cooling water spray nozzle 24 is provided being opposed to the water-cooled heat-exchanging part 25, and a temperature detecting device 50 is laid in a cooling air discharge part, and means for increasing the flow rate of cooling water when the outlet temperature of the cooling air exceeds a predetermined value.

37. 发明专利

JPH06327895A GARMENT DRYER 失效
公开(公告)号：JPH06327895A
公开(公告)日：1994-11-29
申请号：JP11677393
申请日：1993-05-19
申请人： HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： OGOSHI KENICHI , ISHIKAWA YASUO , SATO AKIO , HARADA YOSHITAKA
IPC分类号： D06F58/02 , D06F58/24 , D06F58/28
摘要： PURPOSE:To prevent the room temperature from abnormally rising even though the drying time is shortened by increasing the calorific value of a heat source, and to incorporate a heat-exchanger having a small size but a high heat- exchanging performance so as to have a small size body which is excellent in installation, and simultaneously to reduce noise from a blower fan. CONSTITUTION:A heat-exchanging fan 8 is composed of an air-cooled heat- exchanging part 23 and a water-cooled heat-exchanging part 25, the air-cooled heat-exchanging part 23 being located in the inner peripheral side which is the upstream side of drying air, and being composed of blades having a corrugated sectional shape. Further, the water-cooled heat-exchanging part 25 is located on the outer peripheral side which is the downstream side of the drying air, and being composed of comb-like cross-sectional blades which are projected only toward the drying air side. A cooling water spray nozzle 24 is provided being opposed to the water-cooled heat-exchanging part 25.

38. 发明专利

JPH0671094A CLOTHES-DRYING MACHINE 失效
公开(公告)号：JPH0671094A
公开(公告)日：1994-03-15
申请号：JP22832192
申请日：1992-08-27
申请人： HITACHI LTD
发明人： OGOSHI KENICHI
IPC分类号： D06F58/02
摘要： PURPOSE:To achieve a repairing of a buffer plate at a low cost and easily by enabling the removing of the buffer plate simply by taking off a lifter for stirring up an object to be dried while the lifter is removed from inside a rotary drum. CONSTITUTION:A cylinder part 25 of a rotary drum is provided with stoppers and a buffer plate 29 is arranged closely on the internal surface side thereof to reduce impact sound when a button and a zipper of an object to be dried hits the cylinder part 25. The length of the buffer plate 29 is made larger than the lengthen L of the inner circumference between stoppers and the plate is compressed in the circumferential direction to be mounted between the stoppers. A front groove part 30 and a rear groove part 31 are arranged to insert front and rear end parts of the buffer plate 29 and the depth of the grooves 30 and 31 is so set that one end of the buffer plate 29 comes off the grooves 30 and 31 when the buffer plate 29 moves either forward or backward. When the buffer plate 29 becomes worn.or damaged, blades 36 of lifters 32, 33 and 24 are deflected to remove. The buffer plate 29 is moved backward to get the front groove part 30 taken off and curled thereby enabling the changing of the buffer plate 29 singly.

39. 发明专利

JPH0576698A CLOTHING DRIER 失效
公开(公告)号：JPH0576698A
公开(公告)日：1993-03-30
申请号：JP24145291
申请日：1991-09-20
申请人： HITACHI LTD
发明人： OGOSHI KENICHI
IPC分类号： D06F58/02 , D06F58/22 , D06F58/28
摘要： PURPOSE:To provide a clothing drier capable of collecting dust floating in a drying chamber by informing surely the clogging of a filter in any cases. CONSTITUTION:A clothing drier is provided with a drying chamber 2 for drying the washing to be dried, blower fan 8 for sending air to the drying chamber 2, heat source 3 for heating air sent to the drying chamber 2, filter 22 for collecting floating dust from the drying chamber 2, clogged filter detecting means for detecting the degree of clogging of the filter 22, filter clogging informing means for informing the clogging of the filter 22 and running number-of- times storing means for storing the number of times of running a drier. In both case that the filter clogging detecting means detects the clogging of the filter 22 and the case that the number of times of running the drier reaches the preset predetermined number of times, a control means functions to operate the filter clogging informing means.

40. 发明专利

JPH04126199A CLOTHES-DRYER 失效
公开(公告)号：JPH04126199A
公开(公告)日：1992-04-27
申请号：JP24401790
申请日：1990-09-17
申请人： HITACHI LTD
发明人： OGOSHI KENICHI
IPC分类号： D06F58/02 , D06F58/28
摘要： PURPOSE:To prevent the dryer from being used without cleaning a filter after it is clogged by providing the plural stages of levels for detecting the clogging of the filter, and raising various alarms for the respective detection levels. CONSTITUTION:At the rear part of a rotary drum 2 constituting a clothes-drying chamber, an air exit 6 is provided to exhaust circulating air for drying, and the circulating side exit of a fan casing 9 housing a double wing fan 8 at the back is communicated to a heat source 3 by ducts 13 and 14. For the heat source, a semiconductor heater is used for rapidly increasing electric resistance higher than a prescribed temperature. When a filter 22 is clogged in a drying operation, the quantity of circulating air is lowered, the temperature of the heat source itself is increased, and a current to flow is decreased. A current detection circuit detects this lowering amount and transmits it to a microcomputer. When the current value is lower than a prescribed value, the microcomputer indicates lamp display and buzzer alarm. At the first detection level of clogging, the lamp is turned on/off after the end of the operation, for example, and at the second detection level, the buzzer is rung in addition to the ON/OFF of the lamp.

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