WO2018109814A1

WO2018109814A1 - Manual washing machine

Info

Publication number: WO2018109814A1
Application number: PCT/JP2016/086947
Authority: WO
Inventors: 中野　一郎; 雅代森川
Original assignee: 株式会社ソウルマン
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2018-06-21
Also published as: TW201821670A; JPWO2018109814A1; CN108431319A; EP3553216A1; KR20190089717A; JP6932384B2; US20180237970A1

Abstract

This manual washing machine is capable of providing operability in which torque is emphasized in washing and rinsing steps, and high speed is emphasized in a water-draining step. The manual washing machine (100) of the examples of the present invention has a drive power transmission member (24) for transmitting the rotation of an operation part (4) to a drum (20), and a speed change mechanism (60). The speed change mechanism (60) is provided between a rotation center shaft (6) of the operation part (4), and a rotation transmission shaft (28) by which rotation is transmitted from the drive power transmission member (24) to the drum (20). The rotation speed of the rotation transmission shaft (28) in relation to the rotation speed of the operation part (4) can be changed by the speed change mechanism (60).

Description

Manual washing machine

The present invention relates to a portable small washing machine, and more particularly to a manual washing machine.

The small washing machine is convenient to bring into the kitchen, bathroom, shower room, and wash small items such as underwear, baby clothes, sportswear, and pet clothes.

The manual washing machine is generally composed of a drum that rotates a washing tub. Common names of washing machines including electric washing machines include “vertical washing machine”, “drum washing machine”, and “two-tank washing machine”. The “vertical washing machine” has a rotating body at the bottom of the water tank, and a washing water flow is generated by the rotating body to perform washing. The “drum type washing machine” is a washing machine of a type in which a rotation axis of a washing tub extends in a horizontal or oblique lateral direction. The “2-tank washing machine” has a configuration in which a vertical washing machine is combined with a dewatering tank used for dewatering. In contrast to such a general washing machine, a vertical washing machine employs a form in which a drum is rotated in the case of manual operation.

The following explanation relates to a manual washing machine. On the premise of this, in order to unify the terminology in manual washing machines, containers that store and rotate laundry are called “drums”, and the rotation axis of the drum extends horizontally or diagonally laterally. The washing machine is referred to as a “manual horizontal washing machine”, and the type of washing machine in which the rotating shaft of the drum extends in the vertical direction is referred to as a “manual vertical washing machine”.

Patent Document 1 discloses a manual vertical washing machine. In the manual vertical washing machine, as described above, the rotating shaft of the drum extends in the vertical direction. A manual vertical washing machine is used to put in and out the laundry through the top opening of the drum. In this manual vertical washing machine, an upper lid is installed on a water tank that rotatably receives a drum. The upper lid has a handle. By rotating the handle along a circular path on the horizontal plane, the rotation of the handle is transmitted to the drum via the inner lid. A drain outlet is provided on the lower surface of the aquarium. Laundry can be put in a drum and washed and dehydrated.

In the manual vertical washing machine, the laundry and washing water rotate horizontally together, so the laundry cannot play in the water. The function of washing laundry cannot be fully achieved by simply rotating the drum.

“Leadworks Laundry POD” (product name) is known as a product based on the same idea as the manual vertical washing machine disclosed in Patent Document 1.

Patent Document 2 discloses a manual horizontal small washing machine. In the manual horizontal washing machine, as described above, the rotating shaft of the drum extends in the horizontal direction. The water tank that receives the lower half of the drum has a flat rectangular bottom surface, and non-slip is arranged at the four corners of the bottom surface. The four seats form a “seat” of the washing machine. A drain outlet is formed at the bottom of the aquarium. An upper lid for receiving the upper half of the drum is provided, and a handle and a water supply port are formed on the upper portion of the upper lid. Handles are directly connected to both ends of the rotary drive shaft of the drum, respectively. The drum can be rotated by holding the two handles with both hands and rotating the circular orbit on the vertical plane.

In the manual horizontal washing machine, the laundry moves upward as the drum rotates and then drops. That is, in the manual horizontal washing machine, the “washing” of the laundry is performed. FIG. 30 is a diagram for explaining “tapping”. In FIG. 30, reference numeral 300 indicates a drum of a manual washing machine, and reference numeral 302 indicates a rotation shaft of the drum 300. The drum rotation shaft 302 extends in the lateral direction. The laundry 304 in the drum 300 moves upward along with the rotation of the drum 300, and then the laundry 304 falls and enters the water 306. The laundry 304 moves upwards with the rotation of the drum 300 and then falls and falls into the water 306. This sequence of movement causes the laundry 304 to “tap”, ie, wash water and laundry. Collisions and collisions between laundry items including washing water occur.

The manual washing machines of Patent Documents 1 and 2 and “Leadworks Laundry POD” are designed to perform washing and dewatering by rotating the drum by operating the handle in both the vertical and horizontal types. In the washing process, the drum is partially immersed in the water supplied to the water tank. In this state, in particular, in the horizontal type, a relatively large torque (operating force) is required to rotate the drum containing the laundry to “tap”.
JP JP-A-2006-212405 JP JP 2009-119199 A

As mentioned above, in a manual vertical washing machine with a drum rotating horizontally, the laundry flows with the drum, so the water flow that is essential for agitation washing does not occur and the washing function is practically demonstrated. Can not do it. On the other hand, in the manual horizontal washing machine, the washing function can be exhibited by the above-mentioned “tapping washing”. That is, if the manual horizontal type is adopted, the washing function can be surely ensured. However, in a manual horizontal washing machine, a larger torque (operating force) is required than in a manual vertical washing machine in order to rotate the drum while lifting the laundry in the drum.

The purpose of the present invention is to provide not only a washing process but also a rinsing process and a dehydrating process with one manual washing machine, while the washing process and the rinsing process can provide torque-oriented operability, The object is to provide a manual washing machine capable of providing operability with an emphasis on high speed.

A further object of the present invention is to provide a manual washing machine capable of reducing the operating force for rotating the drum when a manual horizontal type washing machine that exhibits a washing function is employed.

According to the present invention, the above technical problem is
An aquarium (10) with an open top;
A drum (20) rotatably installed in the water tank (10);
An upper lid (12) covering an upper end opening of the water tank (10);
An operation unit (4) rotatably installed on the upper lid (12);
A power transmission member (24) for transmitting rotation of the operation section (4) to the drum (20);
Provided between the rotation center shaft (6) of the operation section (4) and the rotation transmission shaft (28) transmitted from the power transmission member (24) to the drum (20), the operation section (4 This is achieved by providing a manual washing machine (100) having a speed change mechanism (60) capable of shifting the rotation speed of the rotation transmission shaft (28) with respect to the rotation speed of the rotation transmission shaft.

Other objects and operational effects of the present invention will become apparent from the detailed description of the embodiments of the present invention.

FIG. 1 is a perspective view of a manual washing machine (vertical drum state) of the embodiment. FIG. 2 is a view of the manual washing machine shown in FIG. 1 as viewed obliquely from below, and the drainage hole for dehydration is stopped with a rubber plug. FIG. 3 is a view of the manual washing machine shown in FIG. 1 as viewed obliquely from the lower side as in FIG. 2, and the rubber plug is removed from the drainage hole for dehydration. FIG. 4 is a perspective view of the manual washing machine of the embodiment with the upper lid removed. FIG. 5 is a perspective view of the manual washing machine of the embodiment in a state where the upper lid is removed as in FIG. 4, and further, the inner lid as a power transmission member is removed from the upper lid. 6 is a cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a perspective view of the manual washing machine (horizontal drum state) of the embodiment in the upright state, and the cap of the drain outlet is set at the water stop position. FIG. 8 is a perspective view of the manual washing machine (in the horizontal drum state) of the embodiment in a standing state, and the drain port cap is set at the drainage position. FIG. 9 is a diagram for explaining a gear transmission mechanism included in the manual washing machine of the embodiment, and shows a state of the high speed mode. FIG. 10 is a diagram for explaining a gear transmission mechanism included in the manual washing machine of the embodiment, and shows a state of the low speed mode (torque emphasis mode). FIG. 11 is a diagram for explaining a gear transmission mechanism included in the manual washing machine of the embodiment. In the transition period between the high speed mode and the low speed mode, both the ring gear and the first gear are separated from the driven gear. It is a figure for demonstrating maintaining the state from which it remove | deviated. FIG. 12 is a diagram for explaining a structure for switching the mode of the gear mechanism by shifting the operation disk disposed on the upper lid of the manual washing machine of the embodiment. FIG. 13 is a view for explaining the action of the push button incorporated in the rotation center axis of the operation disk, and shows a state when the operation disk is positioned at the first and second positions. FIG. 14 is a diagram for explaining the action of the push button incorporated in the rotation center axis of the operation disk, and shows a state when shifting between the first position and the second position of the operation disk. FIG. 15 is a view for explaining a state when the push button incorporated in the rotation center axis of the operation disk is positioned at the circular portions at both ends of the guide hole. FIG. 16 is a diagram for explaining a state in which the push button is pressed down when the push button incorporated in the rotation center axis of the operation disk is positioned at the circular portions at both ends of the guide hole. FIG. 17 is a view for explaining a state where the rotation center axis of the operation disk is displaced at the transition portion of the guide hole and is shifted following FIG. 16. FIG. 18 shows that when the drum is rotated vertically around an axis extending in the horizontal direction, it requires five times as much operating force as when rotating horizontally around an axis extending in the vertical direction. FIG. FIG. 19 is an exploded perspective view of the gear transmission mechanism that positions the operation disk in the first position (speed-oriented) or the second position (torque-oriented) by raising and lowering the operation disk. FIG. 20 is a diagram illustrating a state of the gear transmission mechanism when the operation disk is positioned at the first position (emphasis on speed). FIG. 21 is a diagram illustrating a state of the gear transmission mechanism when the operation disk is positioned at the second position (torque emphasis). FIG. 22 is a diagram for explaining the relationship between the rotation center axis (circular section of the operation disk) and the guide hole when the operation disk is positioned at the first position or the second position. FIG. 23 is a view for explaining the relationship between the rotation center axis (substantially rectangular section) of the operation disk and the guide hole when the operation disk is moved from the first position to the second position or from the second position to the first position. FIG. FIG. 24 is a view for explaining a state when the operation disk is positioned at the first position (emphasis on speed) in the gear transmission mechanism of another modified example. FIG. 25 is a view for explaining a state when the operating disk is positioned at the second position (emphasis on torque) in the gear transmission mechanism of another modified example. FIG. 26 is a diagram for explaining that in the gear transmission mechanism of still another modified example, the operation disk is rotated to the second position (torque emphasis) by rotating counterclockwise. FIG. 27 is a diagram for explaining that in the gear transmission mechanism of still another modified example, the operation disk is turned to the first position (speed-oriented) by rotating clockwise. FIG. 28 is a diagram for explaining that in the modified example of the gear transmission mechanism of FIGS. 26 and 27, the operation disk is rotated to the second position (torque emphasis) by rotating counterclockwise. FIG. 29 is a diagram for explaining that in the modification of the gear transmission mechanism of FIGS. 26 and 27, the operation disk is rotated to the first position (speed-oriented). FIG. 30 is a diagram for explaining “tapping” of the manual horizontal washing machine.

100 Manual Washing Machine 2 Example 4 Handle 4 Operation Disc (Operation Unit)
6 Rotating center axis of operation disk 10 Water tank 10a Water tank bottom surface 10b Water tank outer peripheral upper end surface 12 Upper lid 14 Single-open buckle (fixing member)
16 Drainage hole for dehydration (first drainage hole)
18 Rubber stopper 20 Drum Od Drum rotation axis 24 Inner lid (power transmission member)
28 Rotation transmission shaft 34 Water stop ring (water stop member)
36 First rubber piece (first seat)
40 Standing surface 42 Second rubber piece (second seat)
50 Water supply port 52 Drain port 54 Cap 60 Gear transmission mechanism 64 First gear 66 Ring gear 68 Driven gear 72 Guide hole 72a First circular portion of guide hole (first position)
72b Second circular portion of guide hole (second position)
72c Guide hole transition (guide)

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a washing machine of an embodiment. In FIG. 1, the washing machine of the embodiment is denoted by reference numeral 100. The washing machine 100 is manual, and a drum, which will be described later, can be rotated by grasping the handle 2 and rotating the operation disk 4 about its rotation center axis 6.

The manual washing machine 100 is made entirely of synthetic resin. The washing machine 100 includes a water tank 10 and an upper lid 12 that can be attached to and detached from the water tank 10, and the upper lid 12 can be fixed to the water tank 10 by a plurality of single-open buckles 14. The single-side buckle 14 is an example of a typical member for fixing the upper lid 12 to the water tank 10. FIG. 2 is a perspective view of the washing machine 100 as viewed obliquely from below. A drain hole 16 for dehydration is formed in the bottom surface 10a of the water tank 10. A rubber plug 18 is detachably attached to the drainage hole 16 for dehydration. FIG. 3 is the same perspective view as FIG. 2, but with the rubber plug 18 removed from the drain hole 16 for dehydration. A preferable arrangement position of the drainage hole 16 for dehydration will be described later.

FIG. 4 shows a state where the upper lid 12 is removed from the water tank 10. The water tank 10 is open upward. A drum 20 is disposed in the water tank 10. Similar to the water tank 10, the drum 20 is open upward and has a circular cross section. The drum 20 is pivotally supported on the bottom surface 10 a of the water tank 10 and is rotatable about an axis Od extending in the vertical direction of the drum 20. The drum 20 is preferably detachable.

The peripheral wall 20a of the drum 20 and the bottom wall that does not appear in FIG. 4 have a shape having, for example, a vertical grid-like opening for drainage. A vertical lattice extending in the vertical direction of the peripheral wall 20a is indicated by reference numeral 22.

4 and 5, the drum 20 has a protruding portion 20b that protrudes inward on the inner surface thereof, as can be seen from the drum 20 shown in FIGS. A plurality of the raised portions 20b may exist in the circumferential direction. Washing efficiency can be increased by the raised portions 20b.

The inner lid 24 covering the upper end opening of the drum 20 is attached to the upper lid 12 so as to be removable and non-rotatable. The inner lid 24 is a member for power transmission that transmits a user operation to rotate the handle 2 to the drum 20. A plate-like protrusion 26 extending downward is formed on the outer peripheral edge of the inner lid 24. A plurality of the protrusions 26 are provided, and the plurality of protrusions 26 are arranged in the circumferential direction of the inner lid 24, preferably at regular intervals. Each protrusion 26 enters between two adjacent

vertical lattices

22, 22 on the peripheral wall 20 a of the drum 20 and engages with the vertical lattice 22. Due to the engagement between the protrusions 26 and the drum 20 via the vertical lattice 22, the inner lid 24 and the drum 20 rotate integrally around the axis Od of the drum 20.

FIG. 5 shows a state in which the inner lid 24 is removed from the upper lid 12 shown in FIG. Referring to FIG. 5, the upper lid 12 has a rotation transmission shaft 28 extending downward from the upper lid 12, and the rotation transmission shaft 28 is rotatably attached to the upper lid 12. A non-circular portion 28a is formed at the lower end of the rotation transmission shaft 28, and a screw portion 28b is formed below the non-circular portion 28a. FIG. 5 illustrates a state before the one-side buckle 14 is attached to the water tank 10.

The inner lid 24 has a circular outline and is provided with a non-circular through hole 24a at the center (FIG. 5). The non-circular through hole 24a has a shape complementary to the non-circular portion 28a of the rotation transmission shaft 28, and is received by the non-circular portion 28a. A locking nut 30 is screwed onto the threaded portion 28b of the rotation transmission shaft 28, and the inner lid 24 is fixed to the rotation transmission shaft 28 so as not to rotate relative to the rotation transmission shaft 28 by firmly screwing the locking nut 30.

4 and 5, the upper lid 12 has a circumferential groove 32 on the inner surface of the outer peripheral portion thereof. The circumferential groove 32 is continuous in the circumferential direction of the upper lid 12. 6 is a partial cross-sectional view taken along line VI-VI in FIG. A water stop ring 34 is accommodated in the circumferential groove 32. When the upper lid 12 is fixed to the water tank 10, the water stop ring 34 is brought into pressure contact with the outer peripheral upper end surface 10 b of the water tank 10. Thereby, the water in the water tank 10 can be prevented from leaking from between the water tank 10 and the upper lid 12 by the water stop ring 34. As a modification, the water stop ring 34 may be disposed on the outer peripheral upper end surface 10 b (FIG. 6) of the water tank 10.

The manual washing machine 100 of the embodiment is used in the first usage mode (FIG. 1) in which the drum 20 is used in the vertical state (FIG. 5) and in the horizontal state (FIGS. 7 and 8). The second usage mode can be properly used. Typically, the first usage mode is applied to the dehydration process, while the second usage mode is applied to the washing process and the rinsing process.

2 and 3, three first buffer members, that is, rubber pieces 36 are attached to the circular bottom surface 10 a of the water tank 10 at intervals on the outer peripheral portion thereof, and the three first rubber pieces. 36 is located on a common horizontal plane. The three first rubber pieces 36 constitute a seat portion in the first usage mode. As a modification, the seat portion in the first usage mode may be configured on the bottom surface 10 a of the water tank 10 without attaching the first rubber piece 36.

The first use mode is set in which the three first rubber pieces 36 are seated on a horizontal plane so that the drum 20 is set in a vertical state, that is, in a state where the rotation axis Od extends in the vertical direction (FIG. 4).

Referring to FIG. 1, a standing surface 40 that intersects the bottom surface 10 a of the water tank 10 is formed on the side surface of the washing machine 100. The standing surface 40 is preferably a relationship orthogonal to the bottom surface 10a of the water tank 10, that is, a vertical surface, but of course may be inclined at 70 °, for example. The standing surface 40 is formed of a substantially rectangular surface, and a second buffer member, that is, a rubber piece 42 is attached to each of the four corners thereof, and the four second rubber pieces 42 are located on a common vertical surface. The four second rubber pieces 42 constitute a seat portion in the second usage mode. As a modification, the seat portion in the second usage mode may be configured by the standing surface 40.

The seating of the four second rubber pieces 42 on the horizontal plane results in a second usage mode in which the drum 20 is set in a horizontal state, that is, in a state where the rotation axis Od extends in the horizontal direction. This second usage mode is shown in FIGS.

With reference to FIGS. 7 and 8, in the washing machine 100 in the second usage mode, the washing machine 100 preferably has a water supply port 50 in the upper part thereof, and preferably has a drainage port 52 in the lower part thereof. The drain port 52 is provided with a cap 54. By manually rotating the cap 54, the cap 54 can be switched between a water stop position where the drain port 52 is closed (FIG. 7) and an open position where the drain port 52 is opened (FIG. 8). Of course, the cap 54 may be detachable from the drain port 52.

Specifically, referring to FIG. 2 and FIG. 3 in addition to FIG. 7 and FIG. 8, water is supplied to a position away from the standing surface 40 on the peripheral wall of the water tank 10, that is, near the side opposite to the standing surface 40. A mouth 50 is provided. The water supply port 50 may be provided in the upper lid 12. The preferred arrangement position of the drain hole 16 for dehydration described above with reference to FIGS. 2 and 3 will be described. On the bottom surface 10a of the water tank, the position away from the standing surface 40, that is, far from the standing surface 40, and Is preferably provided with a drainage hole 16 for dehydration on the opposite side (FIG. 3). Thereby, in the washing machine 100 in the second usage mode, the drainage hole 16 for dehydration can be positioned at a high position, and therefore it is not necessary to provide a cap on the drainage hole 16 for dehydration. Moreover, although the drain outlet 52 is good to be arrange | positioned in the upper cover 12 in the position adjacent to the standing surface 40, it is not limited to this. The drain port 52 may be disposed at a position adjacent to the standing surface 40 on the bottom surface 10a or the circumferential surface of the water tank 10.

Referring to FIGS. 7 and 8, an elliptical guide recess 58 is formed in the upper lid 12. The operation disk 4 is accommodated in the guide recess 58. The operation disk 4 is guided by the guide recess 58 and can be displaced in the longitudinal direction of the guide recess 58.

The operation of rotating the operation disk 4 is transmitted to the drum 20 through the gear transmission mechanism. That is, when the operation disk 4 is rotated, this operation force is transmitted to the drum 20 via the gear transmission mechanism, and as a result, the drum 20 rotates. 9 and 10 show the gear transmission mechanism 60 disposed on the upper lid 12.

The gear transmission mechanism 60 includes a first gear 64 attached to the rotation center shaft 6 of the operation disk 4 and a ring gear 66 formed inside the operation disk 4. The ring gear 66 and the first gear 64 are positioned concentrically. The gear transmission mechanism 60 further includes a driven gear 68 attached to the rotation transmission shaft 28 (FIG. 5).

Optionally, the gear ratio between the first gear 64 and the driven gear 68 is 1: 1, and the gear ratio between the driven gear 68 and the ring gear 66 is 1: 5. With this gear ratio, even a weak woman can rotate the drum 20 at high speed in the following high speed mode, and can rotate the drum 20 by lightly operating the handle 2 in the following low speed mode. Therefore, in the first state shown in FIG. 9 in which the ring gear 66 and the driven gear 68 are engaged with each other, power transmission with a priority on speed is performed (high speed mode). On the other hand, in the second state shown in FIG. 10 where the first gear 64 and the driven gear 68 are engaged with each other, power transmission with a relatively high priority on torque is performed (low speed mode).

The gear transmission mechanism 60 can shift the rotation speed of the rotation transmission shaft 28 with respect to the rotation speed of the operation disk 4 by shifting the operation disk 4 by the oval guide recess 58 of the upper lid 12. That is, the gear transmission mechanism 60 can switch between the first position (emphasis on speed) and the second position (emphasis on torque). The operation disk 4 shown in FIG. 1 is positioned at the first position (emphasis on speed). The operation disk 4 illustrated in FIG. 8 is positioned at the second position (emphasis on torque).

FIG. 12 is a view for explaining a displacement regulating mechanism that guides the shift of the operation disk 4 and positions the operation disk 4 at each of the first position and the second position and regulates inadvertent displacement. In FIG. 12, the first gear 64 is omitted in order to avoid complication of the diagram.

1, the top surface of the rotation center shaft 6 of the operation disk 4 is constituted by a push button 70, and this push button 70 is incorporated in the rotation center shaft 6. The push button 70 has a function of prohibiting or permitting gear switching by the gear transmission mechanism 60.

The push button 70 is biased upward by a spring (not shown). Returning to FIG. 12, the rotation center shaft 6 is guided by a guide hole 72 formed in the upper lid 12. The guide hole 72 has an elongated shape, and a first circular portion 72a and a second circular portion 72b are formed at one end and the other end thereof, and the diameters of the first and second

circular portions

72a and 72b are the same. . The first and second

circular portions

72a and 72b are connected by a transition portion (guide portion) 72c. The transition part 72c is composed of two linear side edges parallel to each other, and the width W of the transition part (guide part) 72c is smaller than the diameters of the first and second

circular parts

72a and 72b.

13 and 14 are diagrams in which the push button 70 is extracted. The push button 70 has a cap portion 70a, two plate-like legs 70b depending from both side edges of the cap portion 70a, and a convex portion 70c projecting outward at the lower end of each leg 70b. The

legs

70b, 70b are parallel to each other. Further, the convex portion 70c of each leg 70b has an arc-shaped outer peripheral surface whose outer diameter contour is complementary to the contours of the first and second

circular portions

72a and 72b.

When the rotation center axis 6 of the operation disk 4 is located at the first circular portion 72a or the second circular portion 72b, the arc-shaped convex portion 70c of the push button 70 is the first circular portion 72a or the second circular portion 72b. Is positioned at the rotation center axis 6 of the operation disk 4 by the first circular portion 72a or the second circular portion 72b (FIG. 15). As a result, the operation disk 4 is positioned at the first position (speed emphasis: FIG. 1) or the second position (torque emphasis: FIG. 8). In the first position, the drum 20 can be rotated at high speed. In the second position, the torque for rotating the drum 20 can be increased, but the rotation of the drum 20 is relatively slow.

When pushing the operation disk 4, the push button 70 is pushed down. 14 and 16 are diagrams for explaining a state in which the push button 70 is pressed down. When the push button 70 is depressed, the convex portion 70c of each leg 70b is displaced below the first circular portion 72a or the second circular portion 72b, and is disengaged from the engagement with the first circular portion 72a or the second circular portion 72b. To do. Thereby, the rotation center axis | shaft 6 can be shifted to the transition part (guide part) 72c (FIG. 17). As a result, the operation disk 4 is shifted to the first position (emphasis on speed: FIG. 1) or the second position (emphasis on torque: FIG. 8) while restricting an inadvertent shift to the first and second positions. can do.

This shift is preferably performed with the rotation of the drum 20 stopped. Further, it is desirable that the gears mesh smoothly when shifting. That is, it is desirable to prevent the tooth tips of the two gears that will be engaged from colliding with each other during the shift. According to the embodiment, when the shift is performed, the leg 70b of the push button 70 is regulated by the transition portion (guide portion) 72c, so that the rotation of the operation disk 4 is stopped and the switching position (the leg 70b is set at a predetermined angle). The rotation center shaft 6 cannot be displaced. If switching can be performed without stopping the rotation of the operation disk 4, when the ring gear 66 or the first gear 64, which is the gear of the operation disk 4, is disengaged from the driven gear 68, the driven gear 68 is driven by the inertia force of the drum 20 or the laundry. In this way, it is desirable that the gears be damaged when they are reengaged, so that the gears cannot be shifted unless the rotation is stopped. Further, when the rotation of the operation disk 4 is stopped and displaced, the gear train is arranged so that the ring gear 66 and the first gear 64 are in a positional relationship in which the ring gear 66 and the first gear 64 are both disengaged from the driven gear 68 and smoothly meshed. It is configured (FIG. 11). Thereby, it can prevent that the gear teeth collide in the case of a shift, and can shift smoothly.

Referring to FIG. 18, when the drum 20 is rotated vertically around an axis extending in the horizontal direction and the case where the drum 20 is rotated horizontally around an axis extending in the vertical direction, the vertical rotation is performed. Now, it will be explained that a force 5 times as much as that required for horizontal rotation is required.

In FIG. 18, the drum 20 rotates vertically around an axis extending in the lateral direction. The drum 20 in FIG. 18 is a horizontal type. The laundry is indicated by R. When the mass of the laundry R is expressed as “m” and the rotation speed of the drum 20 is expressed as “v”, when the centrifugal force acting on the laundry R and gravity (g) are balanced, Since the applied gravity is mg and the centrifugal force is m {V2 / r}, it can be expressed by the following equation.

mg = m {V2 / r}

When the above equation is modified, gr = V2.

The energy E (v) when rotating vertically can be expressed by the following equation. The radius of the drum 20 is indicated by r.
E (v) = (1/2) {mV2} +2 mgr
= (1/2) {mV2} + 2mV2
= (5/2) {mV2}

On the other hand, when the drum 20 rotates horizontally around an axis extending in the vertical direction, when the drum 20 rotates at the same speed as the vertical rotation, energy E (h) Can be expressed.
E (h) = (1/2) {mV2}

When rotating horizontally, there is no potential energy. If we compare horizontal rotation and vertical rotation,
E (v): E (h) = 5: 1

As described above, it can be seen that the vertical rotation (horizontal type) requires a force five times as much as the horizontal rotation (vertical type).

The typical usage of the above-described manual washing machine 100 will be described next. First, the upper lid 12 is removed, and dirt such as underwear is put into the drum 20. Next, the water tank 10 is closed with the upper lid 12, and the upper lid 12 is fixed with the buckle 14, whereby the water tank 10 can be brought into a liquid-tight state with the upper lid 12.

Next, the washing machine 100 is set in the state shown in FIG. When it is confirmed that the drainage port 52 is closed with the cap 54, the washing machine 100 is filled with water with a faucet or a shower head facing the water supply port 50. When an appropriate amount of water is put into the washing machine 100, the detergent is poured from the water supply port 50. When this preparation process is completed, the operation disk 4 is positioned at the second position (torque emphasis: FIG. 8), and the washing process is performed. In this washing process, since the drum 20 is in the horizontal state, the dirt is washed while moving in the drum 20 by one-way or two-way rotation of the drum 20 in accordance with the rotation operation of the handle 2. become.

When the washing process is finished, the cap 54 is rotated to open the drain port 52. Thereby, the dirty water in the washing machine 100 can be discharged to the outside through the drain port 52. When the drainage is finished, a faucet or a shower head is made to face the water supply port 50, and the drum 20 is rotated by rotating the handle 2 while supplying water into the washing machine 100 through the water supply port 50. In some cases, the drum 20 is rotated while the drain port 52 is closed with the cap 54 and water is stored in the washing machine 100. In this way, the rinsing step can be performed. Also in this rinsing process, since the drum 20 is in the horizontal position, the rinsing process can be performed while the laundry is moved in the drum 20.

When the rinsing process is completed, the washing machine 100 is placed in the state shown in FIG. The drum 20 is placed vertically. Then, the operation disk 4 is positioned at the first position (emphasis on speed). Further, the rubber plug 18 (FIG. 2) of the drain hole 16 for dehydration is removed (FIG. 3). When this preparation for dehydration is completed, the drum 20 can be rotated at a high speed by rotating the handle 2, whereby the dehydration step can be performed.

According to the manual washing machine 100 of the embodiment, the washing process and the rinsing process can be executed in the state of a horizontal drum. Thereby, it is possible to perform washing and rinsing while moving the laundry in the drum as the drum rotates. On the other hand, the dewatering step can be performed in the state of a vertical drum. If the drum is a vertical drum, the laundry does not move in the drum as the drum rotates, so that the laundry can be dehydrated in a stable state.

Further, according to the manual washing machine 100 of the embodiment, since the gear transmission mechanism is provided, the drum 20 can be rotated under a torque-oriented gear ratio in the washing process and the rinsing process. Further, in the dehydration process, the drum 20 can be rotated under a speed ratio with an emphasis on speed.

19 to 23 show a modification of the gear transmission mechanism. The gear transmission mechanism shown in FIGS. 19 to 23 moves the operation disk 4 up and down to position the operation disk 4 in the first position (speed emphasis: FIG. 20) or the second position (torque emphasis: FIG. 21). be able to. That is, when the rotation center axis 6 of the operation disk 4 is positioned in the first circular part 72a or the second circular part 72b of the guide hole 72, the first circular part 72a of the guide hole 72 is pushed down by pushing down the operation disk 4. Alternatively, the operation disk 4 can be positioned on the second circular portion 72b.

The rotation center shaft 6 of the operation disk 4 has a circular cross section 206a and a substantially rectangular cross section 206b positioned below and cut out on both sides. The width of the substantially rectangular portion 206 b in cross section is substantially the same as the width of the transition portion 72 c of the guide hole 72. When the operation disk 4 is lifted, the substantially rectangular section 206b enters the transition portion 72c of the guide hole 72, and the transition portion (guide portion) 72c can be moved. Therefore, by lifting the operation disk 4 and displacing the operation disk 4 along the transition portion 72c of the guide hole 72 (FIG. 23), the operation disk 4 is moved to the first position (speed-oriented: FIG. 20) or second. The position (torque emphasis: FIG. 21) can be reached. And the operation disk 4 can be positioned in a 1st position or a 2nd position by pushing down the operation disk 4 in the 1st position or 2nd position which arrived (FIG. 22).

24 and 25 show another modification of the gear transmission mechanism. FIG. 24 shows a state when the operation disk 4 is positioned at the first position (emphasis on speed). FIG. 25 shows a state when the operation disk 4 is positioned at the second position (torque emphasis). Switching between the first position and the second position can be performed by raising and lowering the operation disk 4.

The operation disk 4 has an outer cylindrical part 210, and a circular gear 212 is formed on the inner peripheral surface of the outer cylindrical part 210. The operation disk 4 can rotate around a rotation center axis 6. The rotation center axis 6 is constant and cannot be displaced. A drive gear 216 is fixed to the rotation center shaft 6 of the operation disk 4.

Referring to FIG. 24, FIG. 24 shows a state when the operation disk 4 is pushed down and positioned at the first position (emphasis on speed) as described above. In this state, the drive gear 216 of the rotation center shaft 6 of the operation disk 4 is free. On the other hand, the circular gear 212 on the inner peripheral surface of the outer peripheral cylindrical portion 210 meshes with the driven gear 68.

Referring to FIG. 25, FIG. 25 shows a state when the operation disk 4 is pulled up and positioned at the second position (torque emphasis) as described above. In this state, the drive gear 216 of the rotation center shaft 6 of the operation disk 4 is engaged with the driven gear 68 via the intermediate gear 218. On the other hand, the circular gear 212 on the inner peripheral surface of the outer cylindrical portion 210 is free. As a modification, the intermediate gear 218 may be omitted and the drive gear 216 and the driven gear 68 may be directly meshed.

The position fixing mechanism at the first position (emphasis on speed) and the second position (emphasis on torque) accompanying the raising and lowering of the operation disk 4 may be configured by a combination of the rubber ring 220 and the convex portion 222. That is, the rubber ring 220 is provided on the outer peripheral surface of the outer peripheral cylindrical portion 210 of the operation disk 4. On the other hand, the convex portion 222 is formed on the upper lid 12. If the rubber ring 220 is moved over the convex portion 222 to raise and lower the operation disk 4 to be displaced to the first position or the second position, the first position (emphasis on speed), the second position ( It is possible to fix the position of the operation disk 4 in the torque-oriented manner.

26 and 27 show still another modification of the gear transmission mechanism. The gear speed change mechanism shown in FIGS. 26 and 27 includes a planetary gear. More specifically, a drive gear 216 fixed to the rotation center shaft 6 of the operation disk 4, an outer peripheral gear 242 formed on the outer peripheral surface of the cylindrical tube portion of the operation disk 4, and a relatively large-diameter idler gear. 246, a relatively small-diameter idler gear 248, and a driven gear 68. The drive gear 216, the large-diameter idler gear 246, and the small-diameter idler gear 248 are integrated by the swing arm 250.

FIG. 26 shows the second position (torque emphasis: washing, rinsing). FIG. 27 shows the state of the first position (speed-oriented: dehydration).

Referring to FIG. 26 illustrating the state of the second position (emphasis on torque: washing, rinsing), when the operation disk 4 is rotated counterclockwise, the drive gear 216 and the driven gear 68 cause the large-diameter idler gear 246 to move. Bite through.

Referring to FIG. 27 illustrating the state of the first position (emphasis on speed: dewatering), when the operation disk 4 is rotated clockwise, the outer peripheral gear 242 and the driven gear 68 of the operation disk 4 cause the small-diameter idler gear 248 to move. Bite through.

A modification of the gear transmission mechanism shown in FIGS. 26 and 27 will be described with reference to FIGS. 28 and 29. FIG. 26 and 27 employ the outer peripheral gear 242 formed on the outer peripheral surface of the cylindrical tube portion of the operation disk 4, but the gear transmission of the modification shown in FIGS. 28 and 29 is employed. In the mechanism, an inner peripheral gear 252 formed on the inner peripheral surface of the cylindrical tube portion of the operation disk 4 is employed.

FIG. 28 shows the second position (torque emphasis: washing, rinsing). FIG. 29 shows the state of the first position (speed-oriented: dewatering).

Referring to FIG. 28 illustrating the state of the second position (emphasis on torque: washing, rinsing), when the operation disk 4 is rotated counterclockwise, the drive gear 216 and the driven gear 68 cause the large-diameter idler gear 246 to move. Bite through.

Referring to FIG. 29 illustrating the state of the first position (emphasis on speed: dewatering), when the operation disk 4 is rotated in the clockwise direction, the inner peripheral gear 252 and the driven gear 68 of the operation disk 4 become the small-diameter idler gear 248. Bite through.

Claims

An aquarium with an open top;
A drum rotatably installed in the water tank;
An upper lid covering an upper end opening of the water tank;
An operation unit rotatably installed on the upper lid;
A power transmission member for transmitting rotation of the operation unit to the drum;
A shift that is provided between a rotation center shaft of the operation unit and a rotation transmission shaft that is transmitted from the power transmission member to the drum, and that can change a rotation speed of the rotation transmission shaft with respect to a rotation speed of the operation unit. And a manual washing machine having a mechanism.
The speed change mechanism includes a ring gear formed on the inner surface of the operation portion, a first gear attached to the rotation center shaft of the operation portion, and a driven gear attached to the rotation transmission shaft,
2. The manual operation according to claim 1, wherein the manual operation unit can be switched between a high speed mode in which the ring gear meshes with the driven gear and a low speed mode in which the first gear meshes with the driven gear by displacing the operation unit. Washing machine.
The speed change mechanism includes a first position that creates the high speed mode, a second position that creates the low speed mode, and a transition portion that connects the first position and the second position. The manual washing machine according to claim 2, wherein switching between the high speed mode and the low speed mode is possible while restricting inadvertent displacement.
The ring gear and the first gear are arranged so as to mesh smoothly with each other while maintaining a state where both of the ring gear and the first gear are detached from the driven gear when the operation unit is displaced in a state where the rotation of the operation unit is stopped. The manual washing machine according to claim 3.
A first seat formed on the bottom surface of the water tank or the bottom surface;
A second seat formed by an upstanding surface intersecting the bottom surface of the aquarium,
A first usage mode in which the first seat portion is installed on a horizontal plane and the rotation axis of the drum extends in the vertical direction; The manual washing machine according to claim 1, wherein the manual washing machine can be used by switching to an extended second usage mode.
In the second usage mode in which the second seat is installed on a horizontal plane, a drain outlet located in the vicinity of the second seat,
In the second usage mode in which the second seat is installed on a horizontal plane, a water supply port disposed at a position far from the second seat,
The manual washing machine according to claim 5, further comprising a cap for stopping the drain outlet.
The manual washing machine according to claim 5 or 6, wherein a first drain hole is formed in a bottom surface of the water tank.
The manual washing machine according to claim 7, wherein the first drain hole is disposed at a position far from the second seat portion.
The manual washing machine according to claim 1 or 5, wherein a water stop member is interposed between the inner surface of the outer peripheral portion of the upper lid and the outer peripheral upper end surface of the water tank.