WO2015059824A1 - Washing machine - Google Patents
Washing machine Download PDFInfo
- Publication number
- WO2015059824A1 WO2015059824A1 PCT/JP2013/079002 JP2013079002W WO2015059824A1 WO 2015059824 A1 WO2015059824 A1 WO 2015059824A1 JP 2013079002 W JP2013079002 W JP 2013079002W WO 2015059824 A1 WO2015059824 A1 WO 2015059824A1
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- WO
- WIPO (PCT)
- Prior art keywords
- outer tub
- heater
- washing machine
- rotating drum
- central axis
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/04—Heating arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
Definitions
- This invention relates to a washing machine.
- the washing machine described in Patent Document 1 below includes a washing tub disposed obliquely in a housing.
- the washing tub includes an outer tub for storing water during washing and a rotating drum rotatably accommodated in the outer tub.
- the present invention has been made under such a background, and an object of the present invention is to provide a washing machine capable of preventing problems related to a heater for heating water accumulated in an outer tub.
- the invention according to claim 1 is a bottomed cylindrical shape having a central axis extending obliquely upward, and is a rotating drum that accommodates laundry and can rotate around the central axis, and is along the central axis
- An opening for putting in and out the laundry is provided at an obliquely upper end
- a rotating drum having a bottom is provided at an obliquely lower end along the central axis, and the rotating drum is accommodated
- the invention according to claim 2 is characterized in that a drain outlet for discharging the water in the outer tub is provided at a position in the lowermost part in the outer tub that is removed from the heater in plan view.
- the invention according to claim 3 is the washing machine according to claim 2, further comprising a temperature sensor provided in the heater and disposed close to the drain outlet.
- the inner surface of the outer tub is formed on the inner surface of the outer tub with respect to the lower outer peripheral surface so as to move downward from the lower outer peripheral surface of the rotating drum as it goes from the bottom side to the opening side.
- an inclined surface that is inclined is provided, and a fixing portion to which the holding portion is fixed is provided on the inclined surface.
- the rotating drum in the washing machine, is disposed obliquely with respect to the horizontal direction so that the central axis extends obliquely upward.
- an opening is provided at an obliquely upper end, and a bottom is provided at an obliquely lower end.
- a heater for heating water accumulated in the outer tub is attached to the outer tub that accommodates the rotating drum.
- This heater is arranged in the outer tank along the horizontal direction below the bottom of the rotating drum. In other words, even if the water level in the outer tank is low, the heater is arranged so that it does not protrude upward from the water surface in the outer tank (so that it is completely immersed in the water in the outer tank). Can be prevented (problems related to the heater).
- the drain is provided at a position at the bottom of the outer tub that is separated from the heater in plan view. Therefore, it is possible to prevent the problem that the waste at the drain outlet adheres to the heater.
- a temperature sensor provided in the heater is arranged close to the drain outlet, so that the temperature sensor Dirt such as detergent residue adhering to the water can be washed away by the water flow. Thereby, the malfunction that the temperature sensor of a heater gets dirty can be prevented.
- the return portion is provided on the upper portion of the holding portion that is provided in the outer tub and holds the tip of the heater, and when the heater is attached to the outer tub, the return portion is Then, the leading end of the heater is drawn into the holding part. Thereby, the malfunction that the front-end
- the inner surface of the outer tub is provided with an inclined surface that is inclined with respect to the lower outer peripheral surface so as to be separated from the lower outer peripheral surface of the rotating drum.
- a fixing portion to which the holding portion is fixed can be provided using the inclination of the inclined surface. Specifically, the fixing portion can be provided at an arbitrary position on the inclined surface so as to protrude from the inclined surface in a direction intersecting the inclined direction of the inclined surface.
- FIG. 1 is a perspective view of a washing machine 1 according to an embodiment of the present invention as viewed obliquely from the front.
- FIG. 2 is a left side view of the vertical section of the washing machine 1.
- FIG. 3 is an AA arrow view of FIG.
- FIG. 4 is a BB arrow view of FIG.
- FIG. 5 is a view taken along the line CC of FIG.
- FIG. 6 is a view of a longitudinal section of the peripheral portion of the heater 9 in the washing machine 1 as viewed from the diagonally left rear.
- FIG. 7 is a DD arrow view of FIG.
- FIG. 1 is a perspective view of a washing machine 1 according to an embodiment of the present invention as viewed obliquely from the front.
- FIG. 2 is a left side view of the vertical section of the washing machine 1.
- FIG. 3 is an AA arrow view of FIG.
- FIG. 4 is a BB arrow view of FIG.
- the direction of the washing machine 1 is specified with reference to the time when the washing machine 1 is viewed from the front side as shown in FIG. That is, the front side of the paper surface in FIG. 1 is the front side (front side) of the washing machine 1, and the back side of the paper surface in FIG. 1 is the back side (rear side) of the washing machine 1. Moreover, the left-right direction (horizontal direction) in FIG. 1 corresponds with the left-right direction of the washing machine 1, and the up-down direction (vertical direction) in FIG.
- washing machine 1 As the washing machine 1 in this embodiment, a drum type laundry dryer having a function of drying laundry after washing is assumed. Therefore, in the washing machine 1, a washing process (washing process, rinsing process, and dehydration process) and a drying process are executed.
- the washing machine 1 may be a drum-type washing machine without a drying function.
- the washing machine 1 has a vertically long casing 2.
- An operation panel 3 is provided at the upper end of the front surface of the housing 2.
- the operation panel 3 is provided with a liquid crystal display 4 and various buttons 5. Necessary information is displayed on the display 4. The user can set the operating condition of the washing machine 1 and can start or stop the operation of the washing machine 1 by operating the button 5.
- a door 6 is provided below the operation panel 3.
- the door 6 has a substantially truncated cone shape whose diameter is reduced toward the rear side (see also FIG. 2).
- a hinge (not shown) is provided on either the left or right side of the door 6 in the housing 2, and the door 6 is connected to the housing 2 via the hinge.
- the door 6 can be opened and closed by rotating around the hinge.
- the door 6 in FIG. 1 is in a closed state, and when the door 6 in the state in FIG. 1 is pulled to the front side, the door 6 opens.
- the washing machine 1 mainly includes a rotating drum 7, an outer tub 8, and a heater 9 in the housing 2.
- the rotating drum 7 has a bottomed cylindrical shape having a central shaft 10 extending obliquely upward, and can store laundry therein. That is, the rotating drum 7 has a so-called oblique drum structure that is disposed obliquely with respect to the horizontal direction H.
- the rotating drum 7 has a substantially cylindrical circumferential wall 11 concentric with the central shaft 10 and a disk-shaped bottom wall 12 connected to the rear end of the circumferential wall 11 to block the hollow portion of the circumferential wall 11 from the rear side. Is included.
- the front end portion is gradually reduced in diameter toward the front side, and the front end edge on the inner peripheral surface of the circumferential wall 11 forms a circular opening 13 provided in the rotary drum 7. .
- the opening 13 is provided at an obliquely upper end along the central axis 10 in the rotary drum 7.
- the laundry can be taken in and out of the rotary drum 7 through the opening 13.
- the portion of the circumferential wall 11 connected to the bottom wall 12 and the bottom wall 12 constitute a bottom portion 14 provided at an obliquely lower end portion along the central axis 10 in the rotary drum 7.
- the outer tub 8 has a bottomed cylindrical shape that is slightly larger than the rotating drum 7 and is elastically supported by the housing 2 via a plurality of dampers (not shown).
- the outer tub 8 has a substantially cylindrical shape, and the central axis thereof coincides with the central axis 10 of the rotating drum 7.
- the outer tub 8 has a substantially cylindrical circumferential wall 15 concentric with the central axis 10, and a disc-shaped bottom wall 16 connected to the rear end of the circumferential wall 15 to block the hollow portion of the circumferential wall 15 from the rear side. Is included in one. Water (including tap water, bath water, and water in which detergent is dissolved) is stored in the outer tub 8 from the bottom wall 16 side.
- the circumferential wall 15 may be configured by combining a plurality of parts divided forward and backward.
- the front end portion is reduced in a stepped shape toward the front side, and the front end edge on the inner circumferential surface of the circumferential wall 15 constitutes a circular doorway 17 provided in the outer tub 8. .
- the entrance / exit 17 is coaxial with the opening 13 of the rotary drum 7, faces the front from the front, and communicates therewith.
- An annular packing 18 is attached to the outer tub 8 and protrudes to the front side while rimming the inlet / outlet port 17 over the entire circumference.
- the seal 18 seals between the door 6 and the front edge of the outer tub 8 by tightly contacting the closed door 6, thereby preventing water in the outer tub 8 from leaking out of the inlet / outlet 17. it can.
- the opening 13 and the entrance 17 are opened forward, so that the laundry can be taken in and out of the rotary drum 7 through the opening 13 and the entrance 17.
- a motor 19 (for example, a DD motor) is attached to the back surface of the bottom wall 16, and an output shaft 19 ⁇ / b> A of the motor 19 passes through the circular central portion of the bottom wall 16 and is connected to the central shaft 10 in the outer tub 8. Along the front upper side.
- the outer tub 8 accommodates the rotating drum 7 coaxially therein.
- An output shaft 19 ⁇ / b> A of a motor 19 is connected to a circular center portion of the bottom wall 12 of the rotary drum 7.
- the rotary drum 7 can rotate around the central axis 10.
- a plurality of through holes are formed in at least one of the circumferential wall 11 and the bottom wall 12 of the rotating drum 7, and the hollow portion of the rotating drum 7 and the hollow portion of the outer tub 8 (the rotating drum). 7) other than the hollow portion) communicates with the through hole. Therefore, the water accumulated in the outer tub 8 can go back and forth between the rotating drum 7 and the outer tub 8.
- the substantially lower half of the lower outer peripheral surface 7A (also the lower outer peripheral surface of the circumferential wall 11) of the rotating drum 7.
- An inclined surface 8B that is inclined with respect to the lower outer peripheral surface 7A is provided at a position facing the minute region from directly below.
- a recess 20 that is recessed one step downward is formed in the region of the lower half of the lower inner peripheral surface 15A of the circumferential wall 15, and the bottom surface of the recess 20 is the aforementioned inclined surface 8B.
- the inclined surface 8B is inclined with respect to the lower outer peripheral surface 7A so as to move downward from the lower outer peripheral surface 7A of the rotating drum 7 as it goes from the bottom 14 side of the rotating drum 7 to the opening 13 side (front upper side). (See also FIG. 3). Although the inclined surface 8B is inclined with respect to the lower outer peripheral surface 7A, it is actually a flat surface along the horizontal direction H (see also FIG. 3). The inclined surface 8B is the lowermost part in the outer tub 8. Therefore, the water accumulated in the outer tub 8 accumulates from the inclined surface 8B side. In the inclined surface 8B, a drain port 40 is provided at a corner on the back left side (see FIG. 4). The water in the outer tub 8 is discharged out of the machine through the drain port 40.
- FIG. 5 is a view taken along the line CC of FIG.
- FIG. 6 is a view of a longitudinal section of the peripheral portion of the heater 9 in the washing machine 1 as viewed from the diagonally left rear.
- FIG. 7 is a DD arrow view of FIG.
- the heater 9 is for heating the water in the outer tub 8.
- the water in the outer tub 8 is heated by the heater 9 to become warm water, the laundry in the rotating drum 7 can be effectively washed with the warm water. That is, in the washing machine 1, the washing power of the laundry can be increased by washing with warm water.
- the heater 9 includes a main body portion 21 having a substantially U shape in plan view, and a horizontally long block-shaped base portion 22 connected to two end portions 21 ⁇ / b> A in the substantially U shape of the main body portion 21. Including. A portion of the substantially U-shaped main body 21 that is curved between the two end portions 21 ⁇ / b> A is a tip portion 9 ⁇ / b> A of the heater 9. The distal end portion 9A has an arc shape that bulges to the front side. A cord 23 is connected to each end 21A (see also FIG. 5). A control device (not shown) built in the washing machine 1 is electrically connected to the cord 23. In the heater 9, the main body 21 generates heat when electric power or a control signal is supplied from the control device via the cord 23. A so-called sheathed heater can be used as the heater 9.
- the heater 9 is disposed in the recess 20 in the lower inner peripheral surface 15 ⁇ / b> A of the circumferential wall 15 of the outer tub 8.
- an insertion hole 24 penetrating the bottom wall 16 in the front-rear direction is formed at a lower end portion adjacent to the bottom surface of the recess 20 (the inclined surface 8 ⁇ / b> B described above).
- the insertion hole 24 has a shape and a size that allow the base portion 22 of the heater 9 to be fitted.
- the heater 9 is attached to the outer tub 8 so that the tip portion 9A first passes through the insertion hole 24 in a posture along the horizontal direction H (inclined surface 8B) (flattened vertically). It is done. That is, the attachment direction X of the heater 9 with respect to the outer tub 8 is the front side (the right side in FIG. 5) along the horizontal direction H.
- the tip 9A of the heater 9 is a downstream end in the attachment direction X.
- the inclined surface 8 ⁇ / b> B of the outer tub 8 is provided with a holding portion 25 that holds the tip 9 ⁇ / b> A of the heater 9 attached to the outer tub 8.
- the holding portion 25 is configured by bending a metal plate, and integrally includes a pair of receiving members 26 and a return portion 27.
- maintenance part 25 is metal, it does not melt with the heat
- FIG. The pair of receiving members 26 are disposed apart in the left-right direction.
- Each receiving member 26 includes a main body portion 28 having a substantially triangular shape when viewed from the left-right direction, a first bent portion 29 configured by bending the rear end portion of the main body portion 28 toward the counterpart receiving member 26, It integrally includes a second bent portion 30 formed by bending the front end portion of the main body portion 28 to the side opposite to the counterpart receiving member 26 (see also FIG. 4).
- a receiving groove 31 is formed to cut out the first bent portion 29 in a substantially U shape toward the main body portion 28 side (the opposite side described above).
- the receiving grooves 31 of the pair of receiving members 26 face each other in the left-right direction and are recessed in a substantially U shape in a direction away from each other (see also FIG. 3).
- the return portion 27 has a thin plate shape in the vertical direction, and is provided on each of the pair of receiving members 26. In each receiving member 26, the return portion 27 is bent at a substantially right angle from the upper end portion of the first bent portion 29, and extends horizontally to the rear side (left side in FIG. 6) from the first bent portion 29. That is, the return portion 27 is provided on the upper portion of the holding portion 25 and protrudes upstream in the attachment direction X.
- the return portions 27 of the pair of receiving members 26 may be integrated. Then, the pair of receiving members 26 are integrated. When the return portions 27 are not integrated with each other, the pair of receiving members 26 are integrated by installing another member (not shown) between the pair of receiving members 26.
- a fixing portion 32 is provided in the middle of the inclined surface 8B of the outer tub 8 (strictly, a position closer to the front side).
- the fixing portion 32 is a boss provided in the same number (that is, a pair) as the pair of receiving members 26 of the holding portion 25.
- fixed part 32 is arrange
- Each fixing portion 32 is inclined forward with respect to the inclined surface 8B so as to be parallel to the lower outer peripheral surface 7A (in other words, the central axis 10) of the rotating drum 7 and to the front upper side (upper right side in FIG. 6). It protrudes.
- the pair of receiving members 26 are disposed between the pair of fixing portions 32 (see also FIG. 4).
- the lower end portion of the main body portion 28 is along the inner side surface of the nearest fixing portion 32 (surfaces facing each other in the pair of fixing portions 32), and the second bent portion 30 is The surface is in contact with the front end surface 32A of the nearest fixing portion 32 while facing from the front side.
- the front end face 32A is formed with a screw hole 33 extending in the direction opposite to the protruding direction of the fixing portion 32 (the rear lower side).
- a screw 34 passes through the second bent portion 30 from the front side (the right side in FIG. 7) and is assembled into the screw hole 33. As a result, the entire holding part 25 is fixed to the pair of fixing parts 32.
- the holding portion 25 is provided.
- the fixed portion 32 to be fixed can be provided by using the inclination of the inclined surface 8B.
- the fixing portion 32 is provided at an arbitrary position on the inclined surface 8B so as to protrude from the inclined surface 8B in a direction crossing the inclination direction of the inclined surface 8B (inclination direction with respect to the lower outer peripheral surface 7A). Can do.
- the fixed portion 32 can be configured compactly without forming a columnar shape that extends unnecessarily long along the inclined surface 8B.
- the distal end portion 9 ⁇ / b> A of the heater 9 passes through the insertion hole 24 (see FIG. 5) of the bottom wall 16 of the outer tub 8, and then downstream in the attachment direction X. Head to.
- a return portion 27 provided on the upper portion of the holding portion 25 is located on the upper side of the tip portion 9A. Therefore, the leading end 9 ⁇ / b> A of the heater 9 attached to the outer tub 8 is not lifted but is drawn into the receiving grooves 31 (see FIG. 6) of the pair of receiving members 26 in the holding unit 25 by the return portion 27.
- maintenance part 25 can be prevented.
- the distal end portion 9 ⁇ / b> A (main body portion 21) of the heater 9 fits into the receiving grooves 31 of the pair of receiving members 26 in the holding portion 25.
- the base portion 22 completely closes the insertion hole 24 as shown in FIG. 5.
- An engaging portion 41 is provided at the rear end portion of the base portion 22.
- the engaging portion 41 has a hook shape protruding outward from the rear end portion of the base portion 22 in the vertical and horizontal directions (see also FIG. 6).
- the base portion 22 is positioned with respect to the outer tub 8 by the engaging portion 41 being hooked from the rear side to the peripheral portion of the insertion hole 24 in the bottom wall 16 of the outer tub 8.
- the base portion 22 may be further fixed to the outer tub 8 with screws (not shown). Further, a packing (not shown) for sealing (water sealing) between the peripheral edge portion of the insertion hole 24 and the base portion 22 may be provided.
- the heater 9 attached to the outer tub 8 is slightly lifted from the bottom surface (inclined surface 8B) of the recess 20 and below the bottom portion 14 (lower end portion of the bottom portion 14) of the rotating drum 7 in the outer tub 8. It is arranged along the horizontal direction H in the (right below) dent 20. Strictly speaking, the upper surface 9B of the heater 9 (at least the upper surface 21B of the main body 21 that is a heat generating component) only needs to be along the horizontal direction H over the entire region.
- the heater 9 is disposed along the horizontal direction H below the bottom portion 14 of the rotating drum 7 in the outer tub 8, not along the lower outer peripheral surface 7 ⁇ / b> A of the rotating drum 7, Even if the water level is low, the heater 9 is disposed so as not to protrude upward from the water surface W in the outer tub 8 (so as to be completely immersed in the water in the outer tub 8). Therefore, failure of the heater 9 due to emptying (problems related to the heater 9) can be prevented, and hot water can be generated in a short time.
- the drain port 40 provided on the inclined surface 8B is at a position deviated from the heater 9 in a plan view (a position not overlapping the heater 9 in a plan view).
- waste such as lint tends to collect in the drainage port 40
- the drainage port 40 is provided at a position in the lowermost part of the outer tub 8 away from the heater 9 in plan view. Can be prevented from adhering to the heater 9.
- a temperature sensor 35 for detecting the temperature of the heater 9 or the water temperature around the heater 9 is provided in a portion sandwiched between the pair of end portions 21A of the main body portion 21 on the front surface 22A of the base portion 22 of the heater 9. It has been.
- the temperature sensor 35 is provided so as to protrude from the front surface 22A of the base portion 22 to the front side. It is preferable that the temperature sensor 35 is disposed close to the drain port 40.
- the temperature sensor 35 may be disposed so as to be exposed to the flow of water around the drain port 40 that is going to the drain port 40 during drainage.
- the detergent attached to the temperature sensor 35 is disposed by placing the temperature sensor 35 provided in the heater 9 close to the drain port 40. Dirt such as residue can be washed away by the water flow. Thereby, the malfunction that the temperature sensor 35 of the heater 9 gets dirty can be prevented.
- the heater 9 since the heater 9 is arranged along the horizontal direction H, the temperature of the heater 9 and its surroundings at the time of heat generation is a substantially uniform value. Therefore, the temperature of the heater 9 and its surroundings can be detected sufficiently accurately with only one temperature sensor 35 provided in the heater 9.
- the temperature of the heater 9 and its surroundings varies depending on the upper and lower positions.
- a plurality of temperature sensors 35 are required. However, in the present invention, since the temperature sensor 35 can be suppressed to a small amount, the heater 9 can be downsized accordingly.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A washing machine (1) includes a bottomed cylindrical shape rotating drum (7) having a central axis (10) extending obliquely upward, an outer drum (8) which houses the rotating drum (7) and in the interior of which water can be stored, and a heater (9) for heating the water within the outer drum (8). The rotating drum (7) houses laundry and is rotatable about the central axis (10). On the rotating drum (7), an aperture portion (13) for inserting and removing laundry is provided at an edge portion obliquely upward along the central axis (10), and a bottom portion (14) is provided at an edge portion obliquely downward along the central axis (10). The heater (9) is attached to the outer drum (8) so as to be disposed along a horizontal direction (H) at below the bottom portion (14) of the rotating drum (7) within the outer drum (8).
Description
この発明は、洗濯機に関する。
This invention relates to a washing machine.
下記特許文献1に記載の洗濯機は、筐体内に斜めに配置された洗濯水槽を備えている。洗濯水槽は、洗濯時に水を溜めるための外槽と、外槽内に回転自在に収容された回転ドラムとを含んでいる。
The washing machine described in Patent Document 1 below includes a washing tub disposed obliquely in a housing. The washing tub includes an outer tub for storing water during washing and a rotating drum rotatably accommodated in the outer tub.
特許文献1に記載の洗濯機において、外槽内の水をヒータで加熱して温水とし、温水によって洗濯物を効果的に洗濯することが想定される。このように外槽内の水を加熱するためのヒータを備える場合において、当該ヒータに関する不具合を防止することが望まれる。
In the washing machine described in Patent Document 1, it is assumed that water in the outer tub is heated with a heater to make warm water, and the laundry is effectively washed with the hot water. Thus, when the heater for heating the water in an outer tank is provided, it is desired to prevent the malfunction regarding the said heater.
この発明は、かかる背景のもとでなされたもので、外槽内に溜まった水を加熱するためのヒータに関する不具合を防止することができる洗濯機を提供することを目的とする。
The present invention has been made under such a background, and an object of the present invention is to provide a washing machine capable of preventing problems related to a heater for heating water accumulated in an outer tub.
請求項1記載の発明は、斜め上側に延びる中心軸を有する有底円筒状であり、洗濯物を収容して前記中心軸を中心に回転可能な回転ドラムであって、前記中心軸に沿った斜め上側の端部に、洗濯物を出し入れするための開口部が設けられ、前記中心軸に沿った斜め下側の端部に、底部が設けられた回転ドラムと、前記回転ドラムを収容し、内部に水が溜められる外槽と、前記外槽内における前記回転ドラムの底部の下方で水平方向に沿って配置されるように前記外槽に取り付けられ、前記外槽内の水を加熱するためのヒータと、を含むことを特徴とする、洗濯機である。
The invention according to claim 1 is a bottomed cylindrical shape having a central axis extending obliquely upward, and is a rotating drum that accommodates laundry and can rotate around the central axis, and is along the central axis An opening for putting in and out the laundry is provided at an obliquely upper end, and a rotating drum having a bottom is provided at an obliquely lower end along the central axis, and the rotating drum is accommodated, An outer tub in which water is stored, and attached to the outer tub so as to be disposed along the horizontal direction below the bottom of the rotating drum in the outer tub, for heating the water in the outer tub And a heater.
請求項2記載の発明は、前記外槽内の最下部において平面視で前記ヒータから外れた位置に、前記外槽内の水を排出するための排水口が設けられていることを特徴とする、請求項1記載の洗濯機である。
The invention according to claim 2 is characterized in that a drain outlet for discharging the water in the outer tub is provided at a position in the lowermost part in the outer tub that is removed from the heater in plan view. The washing machine according to claim 1.
請求項3記載の発明は、前記ヒータに備えられ、前記排水口に接近して配置された温度センサーを含むことを特徴とする、請求項2記載の洗濯機である。
The invention according to claim 3 is the washing machine according to claim 2, further comprising a temperature sensor provided in the heater and disposed close to the drain outlet.
請求項4記載の発明は、前記外槽に設けられ、前記ヒータにおいて前記外槽に対する取り付け方向における下流側の先端部を保持する保持部を含み、前記保持部の上部には、前記取り付け方向における上流側へ突出し、前記外槽に取り付けられる前記ヒータの先端部を前記保持部に誘い込むための返り部が設けられていることを特徴とする、請求項1~3のいずれかに記載の洗濯機である。
Invention of Claim 4 is provided in the said outer tank, The holding | maintenance part which hold | maintains the front-end | tip part of the downstream in the attachment direction with respect to the said outer tank in the said heater is included, The upper part of the said holding part is in the said attachment direction. The washing machine according to any one of claims 1 to 3, further comprising a return portion that protrudes to the upstream side and that leads the leading end portion of the heater attached to the outer tub to the holding portion. It is.
請求項5記載の発明は、前記外槽の内面には、前記底部側から前記開口部側へ向かうのに従って前記回転ドラムの下側外周面から下側へ離れるように前記下側外周面に対して傾斜する傾斜面が設けられており、前記傾斜面には、前記保持部が固定される固定部が設けられていることを特徴とする、請求項4記載の洗濯機である。
According to a fifth aspect of the present invention, the inner surface of the outer tub is formed on the inner surface of the outer tub with respect to the lower outer peripheral surface so as to move downward from the lower outer peripheral surface of the rotating drum as it goes from the bottom side to the opening side. 5. The washing machine according to claim 4, wherein an inclined surface that is inclined is provided, and a fixing portion to which the holding portion is fixed is provided on the inclined surface.
請求項1記載の発明によれば、洗濯機では、回転ドラムが、その中心軸が斜め上側に延びるように、水平方向に対して斜めに配置されている。回転ドラムでは、斜め上側の端部に開口部が設けられ、斜め下側の端部に底部が設けられている。このような回転ドラムを含む洗濯機において、回転ドラムを収容する外槽には、外槽内に溜まった水を加熱するためのヒータが取り付けられている。
According to the first aspect of the present invention, in the washing machine, the rotating drum is disposed obliquely with respect to the horizontal direction so that the central axis extends obliquely upward. In the rotating drum, an opening is provided at an obliquely upper end, and a bottom is provided at an obliquely lower end. In a washing machine including such a rotating drum, a heater for heating water accumulated in the outer tub is attached to the outer tub that accommodates the rotating drum.
このヒータは、外槽内において、回転ドラムの底部の下方で水平方向に沿って配置されている。つまり、外槽内の水位が低くても、ヒータは、外槽内の水面から上側にはみ出ないよう(外槽内の水に完全に漬かるように)に配置されているので、空焚きによるヒータの故障(ヒータに関する不具合)を防止することができる。
This heater is arranged in the outer tank along the horizontal direction below the bottom of the rotating drum. In other words, even if the water level in the outer tank is low, the heater is arranged so that it does not protrude upward from the water surface in the outer tank (so that it is completely immersed in the water in the outer tank). Can be prevented (problems related to the heater).
請求項2記載の発明によれば、外槽の排水口には、糸くずなどのごみがたまりやすいが、排水口は、外槽内の最下部において平面視でヒータから外れた位置に設けられているので、排水口のごみがヒータに付着するという不具合を防止できる。
According to the invention described in claim 2, although waste such as lint is likely to collect at the drain of the outer tub, the drain is provided at a position at the bottom of the outer tub that is separated from the heater in plan view. Therefore, it is possible to prevent the problem that the waste at the drain outlet adheres to the heater.
請求項3記載の発明によれば、排水口の周囲には、排水口へ向かう水の流れが発生するので、ヒータに備えられた温度センサーを排水口に接近して配置することによって、温度センサーに付着した洗剤かす等の汚れを当該水の流れによって洗い落とすことができる。これにより、ヒータの温度センサーが汚れるという不具合を防止できる。
According to invention of Claim 3, since the flow of the water which goes to a drain outlet generate | occur | produces in the circumference | surroundings of a drain outlet, a temperature sensor provided in the heater is arranged close to the drain outlet, so that the temperature sensor Dirt such as detergent residue adhering to the water can be washed away by the water flow. Thereby, the malfunction that the temperature sensor of a heater gets dirty can be prevented.
請求項4記載の発明によれば、外槽に設けられてヒータの先端部を保持する保持部の上部には、返り部が設けられていて、ヒータが外槽に取り付けられる際、返り部は、ヒータの先端部を保持部に誘い込む。これにより、保持部によってヒータの先端部が保持されないという不具合を防止できる。
According to the invention of claim 4, the return portion is provided on the upper portion of the holding portion that is provided in the outer tub and holds the tip of the heater, and when the heater is attached to the outer tub, the return portion is Then, the leading end of the heater is drawn into the holding part. Thereby, the malfunction that the front-end | tip part of a heater is not hold | maintained by a holding | maintenance part can be prevented.
請求項5記載の発明によれば、外槽の内面には、回転ドラムの下側外周面から下側へ離れるように当該下側外周面に対して傾斜する傾斜面が設けられているので、保持部が固定される固定部を、この傾斜面の傾斜を利用して設けることができる。詳しくは、固定部を、傾斜面の傾斜方向と交差する方向へ向けて傾斜面から突出するように、傾斜面における任意の位置に設けることができる。
According to the invention of claim 5, the inner surface of the outer tub is provided with an inclined surface that is inclined with respect to the lower outer peripheral surface so as to be separated from the lower outer peripheral surface of the rotating drum. A fixing portion to which the holding portion is fixed can be provided using the inclination of the inclined surface. Specifically, the fixing portion can be provided at an arbitrary position on the inclined surface so as to protrude from the inclined surface in a direction intersecting the inclined direction of the inclined surface.
以下には、図面を参照して、この発明の実施形態について具体的に説明する。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
図1は、この発明の一実施形態に係る洗濯機1を斜め前方から見た斜視図である。図2は、洗濯機1の縦断面左側図である。図3は、図2のA-A矢視図である。図4は、図2のB-B矢視図である。
FIG. 1 is a perspective view of a washing machine 1 according to an embodiment of the present invention as viewed obliquely from the front. FIG. 2 is a left side view of the vertical section of the washing machine 1. FIG. 3 is an AA arrow view of FIG. FIG. 4 is a BB arrow view of FIG.
なお、以下の実施形態では、図1に示すように洗濯機1を正面側から見たときと基準として、洗濯機1の方向を特定する。つまり、図1における紙面手前側は、洗濯機1の正面側(前側)であり、図1における紙面奥側は、洗濯機1の背面側(後側)である。また、図1における左右方向(横方向)は、洗濯機1の左右方向と一致していて、図1における上下方向(縦方向)は、洗濯機1の上下方向と一致している。
In the following embodiment, the direction of the washing machine 1 is specified with reference to the time when the washing machine 1 is viewed from the front side as shown in FIG. That is, the front side of the paper surface in FIG. 1 is the front side (front side) of the washing machine 1, and the back side of the paper surface in FIG. 1 is the back side (rear side) of the washing machine 1. Moreover, the left-right direction (horizontal direction) in FIG. 1 corresponds with the left-right direction of the washing machine 1, and the up-down direction (vertical direction) in FIG.
この実施形態における洗濯機1として、洗濯後の洗濯物を乾燥させる機能を有するドラム式洗濯乾燥機を想定している。そのため、洗濯機1では、洗濯工程(洗い工程、すすぎ工程および脱水工程)と、乾燥工程とが実行される。ただし、洗濯機1は、乾燥機能を省いたドラム式洗濯機であってもよい。
As the washing machine 1 in this embodiment, a drum type laundry dryer having a function of drying laundry after washing is assumed. Therefore, in the washing machine 1, a washing process (washing process, rinsing process, and dehydration process) and a drying process are executed. However, the washing machine 1 may be a drum-type washing machine without a drying function.
図1に示すように、洗濯機1は、縦長の筐体2を有している。
As shown in FIG. 1, the washing machine 1 has a vertically long casing 2.
筐体2の前面の上端部には、操作パネル3が設けられている。操作パネル3には、液晶の表示器4と、各種のボタン5等とが設けられている。表示器4には、必要な情報が表示される。ユーザは、ボタン5を操作することによって、洗濯機1の動作条件を設定したり、洗濯機1の動作を開始したり停止したりすることができる。
An operation panel 3 is provided at the upper end of the front surface of the housing 2. The operation panel 3 is provided with a liquid crystal display 4 and various buttons 5. Necessary information is displayed on the display 4. The user can set the operating condition of the washing machine 1 and can start or stop the operation of the washing machine 1 by operating the button 5.
筐体2の前面において、操作パネル3の下側には、扉6が設けられている。扉6は、後側へ向かって縮径される略円錐台形状である(図2も参照)。筐体2において扉6に対する左右のどちらかには、ヒンジ(図示せず)が設けられており、扉6は、ヒンジを介して筐体2に連結されている。扉6は、ヒンジを中心に回動することで、開閉自在である。図1の扉6は閉じた状態にあり、図1の状態の扉6を正面側へ引くと、扉6が開く。
On the front surface of the housing 2, a door 6 is provided below the operation panel 3. The door 6 has a substantially truncated cone shape whose diameter is reduced toward the rear side (see also FIG. 2). A hinge (not shown) is provided on either the left or right side of the door 6 in the housing 2, and the door 6 is connected to the housing 2 via the hinge. The door 6 can be opened and closed by rotating around the hinge. The door 6 in FIG. 1 is in a closed state, and when the door 6 in the state in FIG. 1 is pulled to the front side, the door 6 opens.
図2に示すように、洗濯機1は、筐体2内に、回転ドラム7と、外槽8と、ヒータ9とを主に含んでいる。
As shown in FIG. 2, the washing machine 1 mainly includes a rotating drum 7, an outer tub 8, and a heater 9 in the housing 2.
回転ドラム7は、斜め上側に延びる中心軸10を有する有底円筒状であって、その内部に洗濯物を収容することができる。つまり、回転ドラム7は、水平方向Hに対して斜めに配置されたいわゆる斜めドラム構造をなしている。回転ドラム7は、中心軸10と同心状をなす略円筒状の円周壁11と、円周壁11の後端に接続されて円周壁11の中空部分を後側から塞ぐ円板状の底壁12とを一体的に含んでいる。円周壁11では、前端部が前側へ向けて徐々に縮径されていて、円周壁11の内周面における前端縁が、回転ドラム7に設けられた円形状の開口部13を構成している。開口部13は、回転ドラム7において、中心軸10に沿った斜め上側の端部に設けられている。開口部13を介して、回転ドラム7内に洗濯物を出し入れすることができる。円周壁11において底壁12に接続された部分と底壁12とは、回転ドラム7において中心軸10に沿った斜め下側の端部に設けられた底部14を構成している。
The rotating drum 7 has a bottomed cylindrical shape having a central shaft 10 extending obliquely upward, and can store laundry therein. That is, the rotating drum 7 has a so-called oblique drum structure that is disposed obliquely with respect to the horizontal direction H. The rotating drum 7 has a substantially cylindrical circumferential wall 11 concentric with the central shaft 10 and a disk-shaped bottom wall 12 connected to the rear end of the circumferential wall 11 to block the hollow portion of the circumferential wall 11 from the rear side. Is included. In the circumferential wall 11, the front end portion is gradually reduced in diameter toward the front side, and the front end edge on the inner peripheral surface of the circumferential wall 11 forms a circular opening 13 provided in the rotary drum 7. . The opening 13 is provided at an obliquely upper end along the central axis 10 in the rotary drum 7. The laundry can be taken in and out of the rotary drum 7 through the opening 13. The portion of the circumferential wall 11 connected to the bottom wall 12 and the bottom wall 12 constitute a bottom portion 14 provided at an obliquely lower end portion along the central axis 10 in the rotary drum 7.
外槽8は、回転ドラム7より一回り大きい有底円筒状であって、複数のダンパ(図示せず)を介して筐体2によって弾性支持されている。外槽8は、略円筒形状であって、その中心軸は、回転ドラム7の中心軸10と一致している。外槽8は、中心軸10と同心状をなす略円筒状の円周壁15と、円周壁15の後端に接続されて円周壁15の中空部分を後側から塞ぐ円板状の底壁16を一体的に含んでいる。外槽8の内部には、底壁16側から水(水道水や、風呂水や、洗剤が溶けた水も含む)が溜められる。
The outer tub 8 has a bottomed cylindrical shape that is slightly larger than the rotating drum 7 and is elastically supported by the housing 2 via a plurality of dampers (not shown). The outer tub 8 has a substantially cylindrical shape, and the central axis thereof coincides with the central axis 10 of the rotating drum 7. The outer tub 8 has a substantially cylindrical circumferential wall 15 concentric with the central axis 10, and a disc-shaped bottom wall 16 connected to the rear end of the circumferential wall 15 to block the hollow portion of the circumferential wall 15 from the rear side. Is included in one. Water (including tap water, bath water, and water in which detergent is dissolved) is stored in the outer tub 8 from the bottom wall 16 side.
円周壁15は、前後に分割された複数の部品を組み合わせることで構成されてもよい。円周壁15では、前端部が前側へ向けて階段状に縮径されていて、円周壁15の内周面における前端縁が、外槽8に設けられた円形状の出入口17を構成している。出入口17は、回転ドラム7の開口部13に対して同軸状で前から対向し、連通している。外槽8には、出入口17を全周に亘って縁取りつつ前側へ突出する環状のパッキン18が取り付けられている。パッキン18が、閉じた状態の扉6に密着することによって、扉6と外槽8の前端縁との間を密封するので、外槽8内の水が出入口17の外へ漏れ出すことを防止できる。扉6を開くと、開口部13および出入口17が前方に開放されるので、開口部13および出入口17を介して回転ドラム7内に洗濯物を出し入れすることができる。
The circumferential wall 15 may be configured by combining a plurality of parts divided forward and backward. In the circumferential wall 15, the front end portion is reduced in a stepped shape toward the front side, and the front end edge on the inner circumferential surface of the circumferential wall 15 constitutes a circular doorway 17 provided in the outer tub 8. . The entrance / exit 17 is coaxial with the opening 13 of the rotary drum 7, faces the front from the front, and communicates therewith. An annular packing 18 is attached to the outer tub 8 and protrudes to the front side while rimming the inlet / outlet port 17 over the entire circumference. The seal 18 seals between the door 6 and the front edge of the outer tub 8 by tightly contacting the closed door 6, thereby preventing water in the outer tub 8 from leaking out of the inlet / outlet 17. it can. When the door 6 is opened, the opening 13 and the entrance 17 are opened forward, so that the laundry can be taken in and out of the rotary drum 7 through the opening 13 and the entrance 17.
底壁16の背面には、モータ19(たとえばDDモータ)が取り付けられており、モータ19の出力軸19Aは、底壁16の円中心部分を貫通して、外槽8内で中心軸10に沿って前上側へ突出している。
A motor 19 (for example, a DD motor) is attached to the back surface of the bottom wall 16, and an output shaft 19 </ b> A of the motor 19 passes through the circular central portion of the bottom wall 16 and is connected to the central shaft 10 in the outer tub 8. Along the front upper side.
外槽8は、その内部に回転ドラム7を同軸状で収容している。回転ドラム7の底壁12の円中心部分には、モータ19の出力軸19Aが連結されている。モータ19が駆動されると、回転ドラム7は、中心軸10を中心に回転可能である。なお、回転ドラム7の円周壁11および底壁12の少なくとも一方には、複数の貫通孔(図示せず)が形成されており、回転ドラム7の中空部分と外槽8の中空部分(回転ドラム7の中空部分以外の部分)とは、当該貫通孔を介して連通している。そのため、外槽8に溜まった水は、回転ドラム7と外槽8との間で行き来することができる。
The outer tub 8 accommodates the rotating drum 7 coaxially therein. An output shaft 19 </ b> A of a motor 19 is connected to a circular center portion of the bottom wall 12 of the rotary drum 7. When the motor 19 is driven, the rotary drum 7 can rotate around the central axis 10. A plurality of through holes (not shown) are formed in at least one of the circumferential wall 11 and the bottom wall 12 of the rotating drum 7, and the hollow portion of the rotating drum 7 and the hollow portion of the outer tub 8 (the rotating drum). 7) other than the hollow portion) communicates with the through hole. Therefore, the water accumulated in the outer tub 8 can go back and forth between the rotating drum 7 and the outer tub 8.
また、外槽8の内面8A(厳密には、円周壁15の下側内周面15A)において、回転ドラム7の下側外周面7A(円周壁11の下側外周面でもある)の略後半分領域に対して真下から対向する位置には、下側外周面7Aに対して傾斜する傾斜面8Bが設けられている。詳しくは、円周壁15の下側内周面15Aの略後半分の領域には、下方へ一段窪む凹み20が形成されており、凹み20の底面が、前述した傾斜面8Bとなっている。傾斜面8Bは、回転ドラム7の底部14側から開口部13側(前上側)へ向かうのに従って回転ドラム7の下側外周面7Aから下側へ離れるように下側外周面7Aに対して傾斜している(図3も参照)。傾斜面8Bは、下側外周面7Aに対して傾斜しているが、実際は、水平方向Hに沿った平坦面である(図3も参照)。傾斜面8Bが、外槽8内における最下部となっている。そのため、外槽8に溜まる水は、傾斜面8B側から溜まっていく。傾斜面8Bにおいて、左奥側の隅には、排水口40が設けられている(図4参照)。外槽8内の水は、排水口40から機外に排出される。
Further, in the inner surface 8A of the outer tub 8 (strictly speaking, the lower inner peripheral surface 15A of the circumferential wall 15), the substantially lower half of the lower outer peripheral surface 7A (also the lower outer peripheral surface of the circumferential wall 11) of the rotating drum 7. An inclined surface 8B that is inclined with respect to the lower outer peripheral surface 7A is provided at a position facing the minute region from directly below. Specifically, a recess 20 that is recessed one step downward is formed in the region of the lower half of the lower inner peripheral surface 15A of the circumferential wall 15, and the bottom surface of the recess 20 is the aforementioned inclined surface 8B. . The inclined surface 8B is inclined with respect to the lower outer peripheral surface 7A so as to move downward from the lower outer peripheral surface 7A of the rotating drum 7 as it goes from the bottom 14 side of the rotating drum 7 to the opening 13 side (front upper side). (See also FIG. 3). Although the inclined surface 8B is inclined with respect to the lower outer peripheral surface 7A, it is actually a flat surface along the horizontal direction H (see also FIG. 3). The inclined surface 8B is the lowermost part in the outer tub 8. Therefore, the water accumulated in the outer tub 8 accumulates from the inclined surface 8B side. In the inclined surface 8B, a drain port 40 is provided at a corner on the back left side (see FIG. 4). The water in the outer tub 8 is discharged out of the machine through the drain port 40.
次に、ヒータ9について説明する。
Next, the heater 9 will be described.
図5は、図4のC-C矢視図である。図6は、洗濯機1におけるヒータ9の周辺部の縦断面を左斜め後方から見た図である。図7は、図4のD-D矢視図である。
FIG. 5 is a view taken along the line CC of FIG. FIG. 6 is a view of a longitudinal section of the peripheral portion of the heater 9 in the washing machine 1 as viewed from the diagonally left rear. FIG. 7 is a DD arrow view of FIG.
ヒータ9は、外槽8内の水を加熱するためのものである。外槽8内の水がヒータ9によって加熱されて温水となると、回転ドラム7内の洗濯物を当該温水によって効果的に洗濯することができる。つまり、洗濯機1では、温水洗浄により、洗濯物の洗浄力を上げることができる。
The heater 9 is for heating the water in the outer tub 8. When the water in the outer tub 8 is heated by the heater 9 to become warm water, the laundry in the rotating drum 7 can be effectively washed with the warm water. That is, in the washing machine 1, the washing power of the laundry can be increased by washing with warm water.
図4を参照して、ヒータ9は、平面視で略U字状をなす本体部21と、本体部21の略U字状における2つの端部21Aに接続された横長ブロック状のベース部22とを含んでいる。略U字状の本体部21において2つの端部21Aの間で湾曲している部分が、ヒータ9の先端部9Aある。先端部9Aは、前側へ膨出する円弧状である。各端部21Aには、コード23が接続されている(図5も参照)。コード23には、洗濯機1に内蔵された制御装置(図示せず)が電気的に接続されている。ヒータ9では、本体部21が、コード23経由で制御装置から電力や制御信号が供給されることによって、発熱する。ヒータ9として、いわゆるシーズヒータを用いることができる。
Referring to FIG. 4, the heater 9 includes a main body portion 21 having a substantially U shape in plan view, and a horizontally long block-shaped base portion 22 connected to two end portions 21 </ b> A in the substantially U shape of the main body portion 21. Including. A portion of the substantially U-shaped main body 21 that is curved between the two end portions 21 </ b> A is a tip portion 9 </ b> A of the heater 9. The distal end portion 9A has an arc shape that bulges to the front side. A cord 23 is connected to each end 21A (see also FIG. 5). A control device (not shown) built in the washing machine 1 is electrically connected to the cord 23. In the heater 9, the main body 21 generates heat when electric power or a control signal is supplied from the control device via the cord 23. A so-called sheathed heater can be used as the heater 9.
図5を参照して、ヒータ9は、外槽8の円周壁15の下側内周面15Aにおける凹み20内に配置されている。ここで、外槽8の底壁16において、凹み20の底面(前述した傾斜面8B)に隣接した下端部には、底壁16を前後に貫通する挿通孔24が形成されている。挿通孔24は、ヒータ9のベース部22がちょうど嵌まり込める形状および大きさを有している。ヒータ9は、全体が水平方向H(傾斜面8B)に沿った(上下に扁平となった)姿勢で、先端部9Aが最初に挿通孔24を通過するように、外槽8に対して取り付けられる。つまり、外槽8に対するヒータ9の取り付け方向Xは、水平方向Hに沿った前側(図5における右側)である。
Referring to FIG. 5, the heater 9 is disposed in the recess 20 in the lower inner peripheral surface 15 </ b> A of the circumferential wall 15 of the outer tub 8. Here, in the bottom wall 16 of the outer tub 8, an insertion hole 24 penetrating the bottom wall 16 in the front-rear direction is formed at a lower end portion adjacent to the bottom surface of the recess 20 (the inclined surface 8 </ b> B described above). The insertion hole 24 has a shape and a size that allow the base portion 22 of the heater 9 to be fitted. The heater 9 is attached to the outer tub 8 so that the tip portion 9A first passes through the insertion hole 24 in a posture along the horizontal direction H (inclined surface 8B) (flattened vertically). It is done. That is, the attachment direction X of the heater 9 with respect to the outer tub 8 is the front side (the right side in FIG. 5) along the horizontal direction H.
また、取り付け方向Xを基準とすると、ヒータ9の先端部9Aは、取り付け方向Xにおける下流側端部である。ここで、外槽8の傾斜面8Bには、外槽8に取り付けられたヒータ9の先端部9Aを保持する保持部25が設けられている。
Further, when the attachment direction X is used as a reference, the tip 9A of the heater 9 is a downstream end in the attachment direction X. Here, the inclined surface 8 </ b> B of the outer tub 8 is provided with a holding portion 25 that holds the tip 9 </ b> A of the heater 9 attached to the outer tub 8.
図6を参照して、保持部25は、金属板を折り曲げることによって構成されており、一対の受入部材26と、返り部27とを一体的に含んでいる。なお、保持部25は、金属製であるので、ヒータ9の熱で溶けることはない。一対の受入部材26は、左右方向に離れて配置されている。各受入部材26は、左右方向から見て略三角形状をなす本体部28と、本体部28の後端部を相手の受入部材26側へ折り曲げることで構成された第1折曲部29と、本体部28の前端部を相手の受入部材26とは反対側へ折り曲げることで構成された第2折曲部30とを一体的に含んでいる(図4も参照)。第1折曲部29の上下方向途中には、本体部28側(前述した反対側)へ第1折曲部29を略U字状に切り欠く受入溝31が形成されている。一対の受入部材26の受入溝31同士は、左右方向から対向していて、互いに離れる方向へ略U字状に窪んでいる(図3も参照)。返り部27は、上下に薄い板状であって、一対の受入部材26のそれぞれに設けられている。各受入部材26において、返り部27は、第1折曲部29の上端部から略直角に折れ曲がり、第1折曲部29よりも後側(図6における左側)へ水平に延びている。つまり、返り部27は、保持部25の上部に設けられ、取り付け方向Xにおける上流側へ突出している。
Referring to FIG. 6, the holding portion 25 is configured by bending a metal plate, and integrally includes a pair of receiving members 26 and a return portion 27. In addition, since the holding | maintenance part 25 is metal, it does not melt with the heat | fever of the heater 9. FIG. The pair of receiving members 26 are disposed apart in the left-right direction. Each receiving member 26 includes a main body portion 28 having a substantially triangular shape when viewed from the left-right direction, a first bent portion 29 configured by bending the rear end portion of the main body portion 28 toward the counterpart receiving member 26, It integrally includes a second bent portion 30 formed by bending the front end portion of the main body portion 28 to the side opposite to the counterpart receiving member 26 (see also FIG. 4). In the middle of the first bent portion 29 in the vertical direction, a receiving groove 31 is formed to cut out the first bent portion 29 in a substantially U shape toward the main body portion 28 side (the opposite side described above). The receiving grooves 31 of the pair of receiving members 26 face each other in the left-right direction and are recessed in a substantially U shape in a direction away from each other (see also FIG. 3). The return portion 27 has a thin plate shape in the vertical direction, and is provided on each of the pair of receiving members 26. In each receiving member 26, the return portion 27 is bent at a substantially right angle from the upper end portion of the first bent portion 29, and extends horizontally to the rear side (left side in FIG. 6) from the first bent portion 29. That is, the return portion 27 is provided on the upper portion of the holding portion 25 and protrudes upstream in the attachment direction X.
なお、一対の受入部材26の返り部27同士は、一体化されていてもよい。そうすれば、一対の受入部材26同士が一体化される。返り部27同士が一体化されていない場合には、一対の受入部材26は、別の部材(図示せず)が一対の受入部材26間に架設されることによって一体化されている。
Note that the return portions 27 of the pair of receiving members 26 may be integrated. Then, the pair of receiving members 26 are integrated. When the return portions 27 are not integrated with each other, the pair of receiving members 26 are integrated by installing another member (not shown) between the pair of receiving members 26.
保持部25に関連して、外槽8の傾斜面8Bの途中(厳密には、前側寄りの位置)には、固定部32が設けられている。固定部32は、保持部25の一対の受入部材26と同数(つまり一対)設けられたボスである。一対の固定部32は、左右に離れて配置されている。各固定部32は、回転ドラム7の下側外周面7A(換言すれば、中心軸10)と平行になるように傾斜面8Bに対して傾斜しつつ、前上側(図6における右上側)へ突出している。一対の受入部材26は、一対の固定部32の間に配置されている(図4も参照)。この状態で、各受入部材26では、本体部28の下端部が、最寄りの固定部32の内側面(一対の固定部32において互いに対向する面)に沿っていて、第2折曲部30が、当該最寄りの固定部32の前端面32Aに対して前側から対向しつつ面接触している。図7に示すように、前端面32Aには、固定部32の突出方向とは逆向き(後下側)に延びるねじ穴33が形成されている。一対の固定部32(受入部材26)のそれぞれでは、ねじ34が、前側(図7における右側)から第2折曲部30を貫通して、ねじ穴33に組み付けられている。これにより、保持部25全体が一対の固定部32に対して固定されている。
In relation to the holding portion 25, a fixing portion 32 is provided in the middle of the inclined surface 8B of the outer tub 8 (strictly, a position closer to the front side). The fixing portion 32 is a boss provided in the same number (that is, a pair) as the pair of receiving members 26 of the holding portion 25. A pair of fixing | fixed part 32 is arrange | positioned away from right and left. Each fixing portion 32 is inclined forward with respect to the inclined surface 8B so as to be parallel to the lower outer peripheral surface 7A (in other words, the central axis 10) of the rotating drum 7 and to the front upper side (upper right side in FIG. 6). It protrudes. The pair of receiving members 26 are disposed between the pair of fixing portions 32 (see also FIG. 4). In this state, in each receiving member 26, the lower end portion of the main body portion 28 is along the inner side surface of the nearest fixing portion 32 (surfaces facing each other in the pair of fixing portions 32), and the second bent portion 30 is The surface is in contact with the front end surface 32A of the nearest fixing portion 32 while facing from the front side. As shown in FIG. 7, the front end face 32A is formed with a screw hole 33 extending in the direction opposite to the protruding direction of the fixing portion 32 (the rear lower side). In each of the pair of fixing portions 32 (receiving member 26), a screw 34 passes through the second bent portion 30 from the front side (the right side in FIG. 7) and is assembled into the screw hole 33. As a result, the entire holding part 25 is fixed to the pair of fixing parts 32.
ここで、傾斜面8Bは、前述したように回転ドラム7の下側外周面7Aから下側へ離れるように当該下側外周面7Aに対して傾斜して設けられているので、保持部25が固定される固定部32を、この傾斜面8Bの傾斜を利用して設けることができる。詳しくは、固定部32を、傾斜面8Bの傾斜方向(下側外周面7Aに対する傾斜方向)と交差する方向へ向けて傾斜面8Bから突出するように、傾斜面8Bにおける任意の位置に設けることができる。つまり、固定部32を、傾斜面8Bに沿って無駄に細長く延びる柱状とすることなく、コンパクトに構成できる。
Here, since the inclined surface 8B is provided to be inclined with respect to the lower outer peripheral surface 7A so as to be separated from the lower outer peripheral surface 7A of the rotary drum 7 as described above, the holding portion 25 is provided. The fixed portion 32 to be fixed can be provided by using the inclination of the inclined surface 8B. Specifically, the fixing portion 32 is provided at an arbitrary position on the inclined surface 8B so as to protrude from the inclined surface 8B in a direction crossing the inclination direction of the inclined surface 8B (inclination direction with respect to the lower outer peripheral surface 7A). Can do. In other words, the fixed portion 32 can be configured compactly without forming a columnar shape that extends unnecessarily long along the inclined surface 8B.
前述したようにヒータ9が外槽8に取り付けられる際、ヒータ9の先端部9Aは、外槽8の底壁16の挿通孔24(図5参照)を通過した後に、取り付け方向Xの下流側へ向かう。先端部9Aの向かう先の上側には、保持部25の上部に設けられた返り部27が位置している。そのため、外槽8に取り付けられるヒータ9の先端部9Aは、浮き上がることなく、返り部27によって、保持部25における一対の受入部材26の受入溝31(図6参照)に誘い込まれる。これにより、取り付け後のヒータ9において、保持部25によってヒータ9の先端部9Aが保持されないという不具合(誤取付け)を防止できる。
As described above, when the heater 9 is attached to the outer tub 8, the distal end portion 9 </ b> A of the heater 9 passes through the insertion hole 24 (see FIG. 5) of the bottom wall 16 of the outer tub 8, and then downstream in the attachment direction X. Head to. A return portion 27 provided on the upper portion of the holding portion 25 is located on the upper side of the tip portion 9A. Therefore, the leading end 9 </ b> A of the heater 9 attached to the outer tub 8 is not lifted but is drawn into the receiving grooves 31 (see FIG. 6) of the pair of receiving members 26 in the holding unit 25 by the return portion 27. Thereby, in the heater 9 after attachment, the malfunction (erroneous attachment) that the front-end | tip part 9A of the heater 9 is not hold | maintained by the holding | maintenance part 25 can be prevented.
以上のように外槽8に取り付けられたヒータ9では、図6に示すように、ヒータ9の先端部9A(本体部21)が保持部25における一対の受入部材26の受入溝31に嵌まり込むことで保持部25によって保持(位置決め)されていて(図3も参照)、図5に示すように、ベース部22が挿通孔24を完全に塞いでいる。なお、ベース部22の後端部には、係合部41が設けられている。係合部41は、ベース部22の後端部から上下左右方向における外方に突出した鍔状である(図6も参照)。この係合部41が外槽8の底壁16における挿通孔24の周縁部に後側から引っ掛かることによって、ベース部22が外槽8に対して位置決めされている。なお、ベース部22は、さらに、外槽8に対してねじ(図示せず)で固定されていてもよい。また、挿通孔24の周縁部とベース部22との間を密封(水封)するパッキン(図示せず)を設けてもよい。
In the heater 9 attached to the outer tub 8 as described above, as shown in FIG. 6, the distal end portion 9 </ b> A (main body portion 21) of the heater 9 fits into the receiving grooves 31 of the pair of receiving members 26 in the holding portion 25. As a result, the base portion 22 completely closes the insertion hole 24 as shown in FIG. 5. An engaging portion 41 is provided at the rear end portion of the base portion 22. The engaging portion 41 has a hook shape protruding outward from the rear end portion of the base portion 22 in the vertical and horizontal directions (see also FIG. 6). The base portion 22 is positioned with respect to the outer tub 8 by the engaging portion 41 being hooked from the rear side to the peripheral portion of the insertion hole 24 in the bottom wall 16 of the outer tub 8. The base portion 22 may be further fixed to the outer tub 8 with screws (not shown). Further, a packing (not shown) for sealing (water sealing) between the peripheral edge portion of the insertion hole 24 and the base portion 22 may be provided.
このように外槽8に取り付けられたヒータ9は、凹み20の底面(傾斜面8B)から若干浮いた状態で、外槽8内における回転ドラム7の底部14(底部14の下端部)の下方(真下)の凹み20内で、水平方向Hに沿って配置されている。厳密には、ヒータ9の上面9B(少なくとも、発熱部品である本体部21の上面21B)が、全域に亘って水平方向Hに沿っていればよい。ヒータ9が、外槽8内において、回転ドラム7の下側外周面7Aに沿わずに、回転ドラム7の底部14の下方で水平方向Hに沿って配置されていれば、外槽8内の水位が低くても、ヒータ9は、外槽8内の水面Wから上側にはみ出ないよう(外槽8内の水に完全に漬かるように)に配置されている。よって、空焚きによるヒータ9の故障(ヒータ9に関する不具合)を防止することができるし、短時間で温水を生成することができる。
Thus, the heater 9 attached to the outer tub 8 is slightly lifted from the bottom surface (inclined surface 8B) of the recess 20 and below the bottom portion 14 (lower end portion of the bottom portion 14) of the rotating drum 7 in the outer tub 8. It is arranged along the horizontal direction H in the (right below) dent 20. Strictly speaking, the upper surface 9B of the heater 9 (at least the upper surface 21B of the main body 21 that is a heat generating component) only needs to be along the horizontal direction H over the entire region. If the heater 9 is disposed along the horizontal direction H below the bottom portion 14 of the rotating drum 7 in the outer tub 8, not along the lower outer peripheral surface 7 </ b> A of the rotating drum 7, Even if the water level is low, the heater 9 is disposed so as not to protrude upward from the water surface W in the outer tub 8 (so as to be completely immersed in the water in the outer tub 8). Therefore, failure of the heater 9 due to emptying (problems related to the heater 9) can be prevented, and hot water can be generated in a short time.
また、図4に示すように、傾斜面8Bに設けられた排水口40は、平面視でヒータ9から外れた位置(平面視でヒータ9と重ならない位置)にある。排水口40には、糸くずなどのごみがたまりやすいが、排水口40は、外槽8内の最下部において平面視でヒータ9から外れた位置に設けられているので、排水口40のごみがヒータ9に付着するという不具合を防止できる。
Further, as shown in FIG. 4, the drain port 40 provided on the inclined surface 8B is at a position deviated from the heater 9 in a plan view (a position not overlapping the heater 9 in a plan view). Although waste such as lint tends to collect in the drainage port 40, the drainage port 40 is provided at a position in the lowermost part of the outer tub 8 away from the heater 9 in plan view. Can be prevented from adhering to the heater 9.
また、ヒータ9のベース部22の前面22Aにおいて本体部21の一対の端部21Aに挟まれた部分には、ヒータ9の温度またはヒータ9の周囲における水温を検知するための温度センサー35が備えられている。温度センサー35は、ベース部22の前面22Aから前側へ突出するように設けられている。温度センサー35は、排水口40に接近して配置されていることが好ましい。具体的には、排水時に排水口40へ向かおうとする排水口40の周囲の水の流れに晒されるように温度センサー35が配置されるとよい。排水口40の周囲には、排水口40へ向かう水の流れが発生するので、ヒータ9に備えられた温度センサー35を排水口40に接近して配置することによって、温度センサー35に付着した洗剤かす等の汚れを当該水の流れによって洗い落とすことができる。これにより、ヒータ9の温度センサー35が汚れるという不具合を防止できる。
Further, a temperature sensor 35 for detecting the temperature of the heater 9 or the water temperature around the heater 9 is provided in a portion sandwiched between the pair of end portions 21A of the main body portion 21 on the front surface 22A of the base portion 22 of the heater 9. It has been. The temperature sensor 35 is provided so as to protrude from the front surface 22A of the base portion 22 to the front side. It is preferable that the temperature sensor 35 is disposed close to the drain port 40. Specifically, the temperature sensor 35 may be disposed so as to be exposed to the flow of water around the drain port 40 that is going to the drain port 40 during drainage. Since a water flow toward the drain port 40 is generated around the drain port 40, the detergent attached to the temperature sensor 35 is disposed by placing the temperature sensor 35 provided in the heater 9 close to the drain port 40. Dirt such as residue can be washed away by the water flow. Thereby, the malfunction that the temperature sensor 35 of the heater 9 gets dirty can be prevented.
また、図5に示すように、ヒータ9が水平方向Hに沿って配置されているので、発熱時におけるヒータ9およびその周囲の温度は、ほぼ均一の値となっている。そのため、ヒータ9に設けられた1つの温度センサー35だけで、ヒータ9およびその周囲の温度を十分正確に検知することができる。ちなみに、本願発明とは異なり、ヒータ9が回転ドラム7に沿って傾斜していると、ヒータ9およびその周囲の温度が上下の位置によって異なるので、上下の各位置での温度を検知するために複数の温度センサー35が必要となる。しかし、本願発明では、温度センサー35を少なく抑えることができるので、その分、ヒータ9の小型化を図ることができる。
Further, as shown in FIG. 5, since the heater 9 is arranged along the horizontal direction H, the temperature of the heater 9 and its surroundings at the time of heat generation is a substantially uniform value. Therefore, the temperature of the heater 9 and its surroundings can be detected sufficiently accurately with only one temperature sensor 35 provided in the heater 9. By the way, unlike the present invention, when the heater 9 is inclined along the rotary drum 7, the temperature of the heater 9 and its surroundings varies depending on the upper and lower positions. A plurality of temperature sensors 35 are required. However, in the present invention, since the temperature sensor 35 can be suppressed to a small amount, the heater 9 can be downsized accordingly.
この発明は、以上に説明した実施形態に限定されるものではなく、請求項記載の範囲内において種々の変更が可能である。
The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.
1 洗濯機
7 回転ドラム
7A 下側外周面
8 外槽
8A 内面
8B 傾斜面
9 ヒータ
9A 先端部
10 中心軸
13 開口部
14 底部
21 本体部
25 保持部
27 返り部
32 固定部
35 温度センサー
40 排水口
H 水平方向
X 取り付け方向 DESCRIPTION OFSYMBOLS 1 Washing machine 7 Rotating drum 7A Lower outer peripheral surface 8 Outer tub 8A Inner surface 8B Inclined surface 9 Heater 9A Tip 10 Central shaft 13 Opening portion 14 Bottom portion 21 Body portion 25 Holding portion 27 Return portion 32 Fixing portion 35 Temperature sensor 40 Drain port H Horizontal direction X Mounting direction
7 回転ドラム
7A 下側外周面
8 外槽
8A 内面
8B 傾斜面
9 ヒータ
9A 先端部
10 中心軸
13 開口部
14 底部
21 本体部
25 保持部
27 返り部
32 固定部
35 温度センサー
40 排水口
H 水平方向
X 取り付け方向 DESCRIPTION OF
Claims (5)
- 斜め上側に延びる中心軸を有する有底円筒状であり、洗濯物を収容して前記中心軸を中心に回転可能な回転ドラムであって、前記中心軸に沿った斜め上側の端部に、洗濯物を出し入れするための開口部が設けられ、前記中心軸に沿った斜め下側の端部に、底部が設けられた回転ドラムと、
前記回転ドラムを収容し、内部に水が溜められる外槽と、
前記外槽内における前記回転ドラムの底部の下方で水平方向に沿って配置されるように前記外槽に取り付けられ、前記外槽内の水を加熱するためのヒータと、
を含むことを特徴とする、洗濯機。 It is a bottomed cylindrical shape having a central axis extending obliquely upward, and is a rotating drum that accommodates the laundry and is rotatable about the central axis, and is disposed at the diagonally upper end along the central axis. A rotary drum provided with an opening for taking in and out objects, and provided with a bottom at an obliquely lower end along the central axis;
An outer tub that houses the rotating drum and stores water therein;
A heater attached to the outer tub so as to be disposed along the horizontal direction below the bottom of the rotating drum in the outer tub, and for heating water in the outer tub;
A washing machine comprising: - 前記外槽内の最下部において平面視で前記ヒータから外れた位置に、前記外槽内の水を排出するための排水口が設けられていることを特徴とする、請求項1記載の洗濯機。 The washing machine according to claim 1, wherein a drain port for discharging water in the outer tub is provided at a position at a lowermost position in the outer tub that is out of the heater in plan view. .
- 前記ヒータに備えられ、前記排水口に接近して配置された温度センサーを含むことを特徴とする、請求項2記載の洗濯機。 The washing machine according to claim 2, further comprising a temperature sensor provided in the heater and arranged close to the drain port.
- 前記外槽に設けられ、前記ヒータにおいて前記外槽に対する取り付け方向における下流側の先端部を保持する保持部を含み、
前記保持部の上部には、前記取り付け方向における上流側へ突出し、前記外槽に取り付けられる前記ヒータの先端部を前記保持部に誘い込むための返り部が設けられていることを特徴とする、請求項1~3のいずれかに記載の洗濯機。 A holding portion that is provided in the outer tub, and holds a distal end portion of the heater in the mounting direction with respect to the outer tub;
The upper portion of the holding portion is provided with a return portion that protrudes to the upstream side in the mounting direction and that guides the tip of the heater attached to the outer tub to the holding portion. Item 4. The washing machine according to any one of Items 1 to 3. - 前記外槽の内面には、前記底部側から前記開口部側へ向かうのに従って前記回転ドラムの下側外周面から下側へ離れるように前記下側外周面に対して傾斜する傾斜面が設けられており、
前記傾斜面には、前記保持部が固定される固定部が設けられていることを特徴とする、請求項4記載の洗濯機。 The inner surface of the outer tub is provided with an inclined surface that is inclined with respect to the lower outer peripheral surface so as to move away from the lower outer peripheral surface of the rotating drum as it goes from the bottom side to the opening side. And
The washing machine according to claim 4, wherein the inclined surface is provided with a fixing portion to which the holding portion is fixed.
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Citations (2)
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JP2002315985A (en) * | 2001-04-20 | 2002-10-29 | Sanyo Electric Co Ltd | Drum-type washing machine |
JP2007068807A (en) * | 2005-09-08 | 2007-03-22 | Matsushita Electric Ind Co Ltd | Drum type washing machine |
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US3555242A (en) * | 1969-04-10 | 1971-01-12 | Gen Electric | Dishwasher having improved heating means |
JP2006006970A (en) * | 2005-08-22 | 2006-01-12 | Matsushita Electric Ind Co Ltd | Drum type washing machine |
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JP2002315985A (en) * | 2001-04-20 | 2002-10-29 | Sanyo Electric Co Ltd | Drum-type washing machine |
JP2007068807A (en) * | 2005-09-08 | 2007-03-22 | Matsushita Electric Ind Co Ltd | Drum type washing machine |
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