BACKGROUND OF THE INVENTION
1. Field of the Invention
[0001] The present invention relates to a toy cup, and a toy dispenser for simulating the
dispensing of a beverage into the toy cup.
2. Description of the Related Art
[0002] Conventionally, a toy feeding bottle has been proposed in which a liquid simulating
a drink contained in a container appears to have disappeared when the container is
inverted (see, for example, Japanese Utility Model Registration No.
3079103). This toy feeding bottle has a lower container and an upper container divided by
a division wall and communicated with each other only by through-holes. When a hollow
wall of the lower container is filled with a white opaque liquid simulating milk,
and subsequently an end of the toy feeding bottle is inserted into a mouth of a doll
and the toy feeding bottle is tilted as if feeding the doll with milk, the liquid
in the lower container gradually moves into the upper container through the through-hole
and the amount of the liquid in the lower container decreases, thereby giving an observer
an impression as if the amount of the milk in the feeding bottle had decreased because
the doll had drunk the milk.
[0003] In the above-described toy feeding bottle, the liquid in the lower container gradually
moves into the upper container through the through-holes when the toy feeding bottle
is tilted, but the liquid in the upper container gradually returns into the lower
container when the toy feeding bottle is restored from a tilted state to a vertical
state. Accordingly, the above-described toy feeding bottle has a problem that, although
it is realistic when feeding milk, it lacks reality in that the liquid spontaneously
returns into the lower container when the toy feeding bottle is restored to its original
state.
SUMMARY OF THE INVENTION
[0004] The present invention has been made in order to solve the above problem. An object
of the present invention is to provide a toy cup, and a toy dispenser for simulating
the dispensing of a beverage into the toy cup, which are realistic in that a liquid
in the toy cup gradually goes out of sight when the toy cup is tilted, the liquid
which has gone out of sight does not return even when the toy cup is restored from
a tilted state to a vertical state, and the liquid returns into the toy cup when the
toy cup is set on the toy dispenser and an operating member is operated, whereby it
appears as if a drink were being poured from the dispenser into the cup.
[0005] In order to solve the foregoing problem, a toy cup according to a first aspect of
the present invention includes a hermetically closed container; a division plate dividing
an interior of the hermetically closed container into an upper chamber and a lower
chamber, the division plate having a plurality of small holes formed at a periphery
thereof at predetermined intervals for communicating the upper chamber and the lower
chamber with each other, and a vent tube provided at a center thereof to communicate
the upper chamber and the lower chamber with each other; a liquid simulating a beverage
contained in the container, the liquid moving between the upper chamber and the lower
chamber through the plurality of small holes; a control valve for opening and closing
the vent tube; and an urging member for urging the control valve so as to close the
vent tube. The control valve operates so as to open the vent tube against an urging
force of the urging member by means of an urge-releasing member.
[0006] Preferably, the control valve has a first magnet provided therein; the urge-releasing
member is composed of a second magnet acting on the first magnet; and the control
valve is moved against the urging force of the urging member and the vent tube is
opened when the second magnet acts on the first magnet.
[0007] The second magnet may be provided at an end of a toy drink container formed to simulate
a bottle containing a drink.
[0008] Desirably, the container is formed of a cup forming the lower chamber and a cap forming
the upper chamber combined with the division plate therebetween, the cap having a
pressure-deformable top plate, the top plate having a push-button provided in abutment
with an inner surface thereof for pressing down the control valve, the push-button
constituting the urge-releasing member; and the control valve is pressed down through
the push-button and the vent tube is opened when the top plate of the cap is pressed
from above.
[0009] Moreover, a toy dispenser according to a second aspect of the present invention is
a toy dispenser for simulating the dispensing of a beverage into the above toy cup.
The toy dispenser includes a placement base, on which the toy cup is placed; and a
control device provided above the placement base, the control device controlling opening
and closing of the vent tube by the control valve.
[0010] Preferably, the control device includes a movable member having a second magnet constituting
the urge-releasing member, the movable member moving toward and away from the control
valve, and an operating member for operating the movable member; and the movable member
comes into proximity to the control valve, and the second magnet acts on the first
magnet provided in the control valve and moves the control valve against the urging
force of the urging member to open the vent tube when the operating member is operated.
[0011] Further, preferably, the toy dispenser is formed in a shape of a box having an open
front and has a top plate disposed above the placement base; the operating member
protrudes at an upper portion thereof from the top plate, is disposed in a vertically
movable manner, and has a horizontally elongated engaging hole; the movable member
is pivotably journaled on the top plate at an upper end thereof, has the second magnet
disposed at a lower end thereof, and has an engaging shaft for engaging with the engaging
hole; and the movable member pivots downwardly, and the second magnet becomes located
immediately above the first magnet of the control valve and raises the control valve
by means of an attractive force between the second magnet and the first magnet against
the urging force of the urging member when the operating member is pressed down.
[0012] According to a first aspect of the present invention, it is possible to achieve a
toy cup which is realistic in that a beverage in the cup can maintain its state of
having been drunk from when the toy cup is tilted and a liquid in a lower chamber
is caused to flow into an upper chamber through small holes, because small holes are
blocked with the liquid which has flowed in, the upper chamber becomes a closed space,
further entry of air into the upper chamber is prevented, and the liquid in the upper
chamber cannot return into the lower chamber even when the toy cup is restored to
its original vertical state, and in that the liquid which has once flowed into the
upper chamber does not return into the lower chamber until a control valve is moved
against the urging force of the urging member, by means of an urge-releasing member,
and a vent tube is opened.
[0013] According to one embodiment of the present invention, since a first magnet is provided
in the control valve and the urge-releasing member is composed of a second magnet,
it is possible to achieve a toy dispenser which is realistic in that it appears as
if the dispenser were dispensing a drink into a cup when the second magnet is brought
into proximity to a toy cup, because the second magnet attracts the first magnet provided
in the control valve and moves the control valve to open the vent tube, and therefore
an air in the lower chamber flows into the upper chamber and the liquid in the upper
chamber flows into the lower chamber through the small holes.
[0014] According to a second aspect of the present invention, since the toy dispenser includes
a placement base, on which a toy cup is placed, and a control device provided above
the placement base for controlling the opening and closing of the vent tube, it is
possible to achieve a toy dispenser which is realistic in that it appears as if the
dispenser were dispensing a drink into a cup when a toy cup is placed on the placement
base and the control device is operated, because the control valve is moved, the vent
tube is opened, the air in the lower chamber flows into the upper chamber, and the
liquid in the upper chamber flows into the lower chamber through small holes.
[0015] According to one embodiment of the present invention, it is possible to achieve a
toy dispenser which allows the user to enjoy a feeling as if he/she is operating an
actual dispenser in that it appears as if the toy dispenser were dispensing a drink
into a cup by merely operating an operating member, without directly touching the
toy cup, because when the operating member is operated, a second magnet provided in
a movable member comes into proximity to the toy cup and attracts a first magnet,
thereby moving the control valve and opening the vent tube, the air in the lower chamber
flows into the upper chamber, and the liquid in the upper chamber flows into the lower
chamber through small holes.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1 is a perspective view of a toy beverage system using a toy cup and a toy dispenser
according to the present invention;
[0017] FIG. 2 is an exploded perspective view showing a construction of one embodiment of
the toy cup;
[0018] FIGS. 3A and 3B are a perspective view and a sectional view of the toy cup, respectively;
[0019] FIGS. 4A and 4B are sectional views showing a movement of a liquid inside the toy
cup, wherein FIG. 4A shows a state in which the toy cup is tilted and the liquid is
flowing into the upper chamber from the lower chamber, and FIG. 4B shows a state in
which the toy cup is inverted and all of the liquid has moved into the upper chamber;
[0020] FIGS. 5A and 5B are sectional views showing a movement of the liquid inside the toy
cup, wherein FIG. 5A shows the toy cup in its original upstanding state, and FIG.
5B shows a state in which the liquid is being returned into the lower chamber from
the upper chamber;
[0021] FIG. 6 is an explanatory diagram showing one example of the arrangement of an urge-releasing
member for opening a control valve in the toy cup;
[0022] FIGS. 7A and 7B are sectional views showing a main portion of another embodiment
of the toy cup, wherein FIG. 7A shows a state in which the control valve is closed,
and FIG. 7B shows a state in which the control valve is opened by a push-button;
[0023] FIG. 8 is an exploded perspective view showing a construction of the control device
of a toy dispenser;
[0024] FIG. 9 is a perspective view showing a state of use of the toy dispenser;
[0025] FIGS. 10A and 10B are sectional views of a main portion illustrating an operation
of the control device, wherein FIG. 10A shows a state in which a movable member is
located upwardly before an operating button is pressed down, and FIG. 10B shows a
state in which the movable member has been pivoted downwardly by pressing down the
operating button.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0026] FIG. 1 shows a toy cup 1 formed to simulate a cup for containing a drink according
to the present invention, and a toy dispenser 2 for simulating the dispensing of a
drink into the toy cup 1.
[0027] As shown in FIGS. 2 to 3B, the toy cup 1 includes a hermetically sealed container
10 formed by combining a transparent cup 11 and a cap 12, and an interior of the container
10 is divided by a division plate 13 into a lower chamber LR and an upper chamber
UR. The lower chamber LR contains a hollow element 14 therein so that its substantial
capacity is decreased. The hollow element 14 includes a cup 15 and a lid 16 hermetically
closing the cup 15 and is adapted to be fixed in the lower chamber LR by having mating
protrusions 17 formed to protrude on an upper surface of the lid 16 mated with mating
recesses 18 formed in a lower surface of the division plate 13.
[0028] The cap 12 is covered with an opaque cover 20. The cover 20 is formed with a plurality
of mating holes 21 and can be fixed on the cap 12 by having a plurality of mating
protrusions 22 formed to protrude on an upper surface of the cap 12 mated with the
mating holes 21.
[0029] Moreover, the division plate 13 has a plurality of small holes 23 formed at a periphery
thereof at predetermined intervals, and the lower chamber LR and the upper chamber
UR are communicated with each other through the small holes 23. Further, the division
plate 13 has a vent tube 25 provided at a center thereof to communicate the lower
chamber LR and the upper chamber UR with each other. The vent tube 25 protrudes upwardly
in a shape of a cylinder and, at an end of the vent tube 25, retains an O-ring 26
made of rubber and has a guide tube 28 mounted for guiding vertical movements of a
control valve 27.
[0030] An end 27a of the control valve 27 is formed substantially in a shape of a hemisphere
so as to come into close contact with an inner peripheral surface of the O-ring 26,
and a mating recess 29 formed at an upper surface of the control valve 27 has a magnet
(hereinafter referred to as a "first magnet") M1 fitted therein. The control valve
27 is urged downwardly by an urging member (composed of a coil spring in this embodiment)
31 so that the end 27a comes into close contact with the O-ring 26 and the vent tube
25 is usually closed.
[0031] Meanwhile, the cap 12 has an injection hole 32 formed at an upper surface thereof
through which a liquid L simulating a beverage is injected after the toy cup is assembled.
The injection hole 32 is blocked with a plug 33 after the liquid L is injected, and
the plug 33 will not be removed thereafter. The liquid L to be injected through the
injection hole 32 will be injected into the upper chamber UR. The amount of the liquid
L to be injected is preferably such that the level of the liquid L does not exceed
the height of the vent tube 25 formed on the division plate 13.
[0032] The above toy cup 1 can be assembled, as shown in FIG. 3A, by containing the hollow
element 14 in the cup 11, blocking an upper surface of the cup 11 with the division
plate 13, mounting the cap 12, and after injecting the liquid L through the injection
hole 32, blocking the injection hole 32 with the plug 33, and then attaching the cover
20.
[0033] As shown in FIG. 3B, in the toy cup 1 assembled in this manner, the upper surface
of the cup 11 is blocked with the division plate 13, a space formed by an outer wall
surface of the hollow element 14 contained in the cup 11 and an inner wall surface
of the cup 11 constitutes a lower chamber LR, a space formed by the division plate
13 and an inner wall surface of the cap 12 constitutes an upper chamber UR, and the
lower chamber LR and the upper chamber UR are communicated with each other by the
small holes 23.
[0034] Moreover, the O-ring 26 is disposed at an upper opening of the vent tube 25 formed
on an upper surface of the division plate 13, at the center thereof, the control valve
27 is urged downwardly by an urging member 31, and an end 27a of the control valve
27 is in pressure contact with the O-ring 26, thus blocking the opening of the vent
tube 25.
[0035] Next, a manner of use of the above toy cup 1 will be described. When the toy cup
1 is tilted as if feeding a toy doll or the like (not shown) juice (see FIG. 4A),
the liquid L in the lower chamber LR flows into the upper chamber UR through a small
hole or holes 23 located at a lower side with respect to a longitudinal axis of the
toy cup 1, as indicated by the arrow P, and the air in the lower chamber LR is forced
out into the lower chamber LR through a small hole or holes 23 located at an upper
side with respect to the axis of the toy cup 1, as indicated by the arrow Q. When
the toy cup 1 is inverted, as shown in FIG. 4B, almost all of the liquid L in the
lower chamber LR moves into the upper chamber UR. Since the end 27a of the control
valve 27 urged by the urging member 31 is in pressure contact with the O-ring 26 at
the upper opening of the vent tube 25 on the division plate 13, the liquid L does
not flow into the lower chamber LR via the vent tube 25.
[0036] When the toy cup 1, in which the liquid L has flowed into the upper chamber UR, is
restored to its original vertical state, as shown in FIG. 5A, since the liquid L is
contained in the upper chamber UR and is not present in the lower chamber LR, it appears
as if all of the liquid L had flowed out of the toy cup 1 and all of the juice in
the cup had been fed to the doll.
[0037] In order to return the liquid which has flowed into the upper chamber UR of the toy
cup 1 into the lower chamber LR, a second magnet M2, which is an urge-releasing member,
may be brought into proximity to an upper surface of the toy cup 1.
[0038] When the second magnet M2 is brought into proximity to the upper surface of the toy
cup 1, the first magnet M1 provided in the control valve 27 is attracted by the second
magnet M2, and the control valve 27 rises against the force of the urging member 31,
as shown in FIG. 5B.
[0039] When the control valve 27 rises, an upper portion of the vent tube 25 is opened,
and the lower chamber LR and the upper chamber UR become communicated with each other
through the vent tube 25. When the vent tube 25 is opened, since the upper chamber
UR is no longer a hermetically sealed space, and the air in the lower chamber LR can
flow into the upper chamber UR via the vent tube 25, as indicated by the arrow R,
the liquid L, which has a specific gravity greater than that of air, flows into the
lower chamber LR through the small holes 23 of the division plate 13, as indicated
by the arrow S, whereby all of the liquid L in the upper chamber UR can be returned
into the lower chamber LR.
[0040] The second magnet M2, as an urge-releasing member for opening and closing the control
valve 27, may be provided at an end of a toy drink container 35 formed to simulate
a bottle or the like containing a drink, as shown in FIG. 6. When the end of the toy
drink container 35 is brought into proximity to the upper surface of the toy cup 1,
since the second magnet M2 of the toy drink container 35 attracts the first magnet
M1 of the toy cup 1, moves the control valve 27, and opens the vent tube, it appears
as if the drink were being poured from the drink container into the cup.
[0041] While, in the toy cup of the above-described embodiment, a first magnet is provided
in the control valve, and the urge-releasing member is composed of a second magnet
acting on the first magnet, the operation of the control valve may be controlled without
using a magnet. As shown in FIG. 7A as one example, the control valve 27 may be provided
inside the vent tube 25, brought into pressure contact with the O-ring 26 retained
by the guide tube 28 by the urging member 31 from below, and constructed to close
the upper opening of the vent tube 25; the urge-releasing member may be composed of
a push-button 36; the top plate 12a of the cap 12 may be formed to be pressure-deformable;
an upper surface of the push-button 36 may be provided in abutment with an inside
surface of the top plate 12a; and the top plate 12a may be pressed from above, as
shown in FIG. 7B, thereby pressing down the control valve 27 through the push-button
36 and opening the vent tube 25.
[0042] Next, a toy dispenser 2 for simulating the dispensing of a beverage into the above
toy cup 1 will be described with reference to FIG. 1 and FIGS. 8 to 10B.
[0043] The toy dispenser 2 is formed in a shape of a box having an open front, simulating
a store, and has a placement base 40, on which a plurality of toy cups 1 can be placed
in juxtaposition, and a top plate 41, formed to simulate a roof, disposed above the
placement base 40. The top plate 41 has a front surface formed inclined obliquely
downwardly, so that a control device 50, which will be described later, is invisible
except for an operating member 51. The placement base 40 is formed with recesses 42
for properly placing toy cups 1.
[0044] The control device 50 includes the operating member or operating button 51, protruding
at an upper portion thereof from the top plate 41 and disposed in a vertically movable
manner, and a movable member 54 journaled at a shaft hole 52 formed at an upper end
thereof by a supporting shaft 53 provided on the top plate 41 in a forwardly and backwardly
pivotable manner (see FIG. 8). The operating button 51 is urged by a coil spring 55
so as to protrude upwardly from the top plate 41, and an engaging plate 57 formed
with a horizontally elongated engaging hole 56 is fixed to a lower portion of the
operating button 51 through shafts 58.
[0045] The movable member 54 is formed in a shape of a rod and has an engaging shaft 59,
formed below the shaft hole 52, for engaging with the engaging hole 56 of the engaging
plate 57. A mating recess 61 formed at a lower end of the movable member 54 has a
magnet (hereinafter referred to as a "second magnet") M2, which is an urge-releasing
member, fitted therein.
[0046] A manner of use of the toy dispenser 2 having the above construction will now be
described. For use of the toy dispenser 2, the liquid L in the lower chamber LR of
the toy cup 1 is previously moved into the upper chamber UR.
[0047] In order to pour a liquid into the toy cup 1 in this state, the toy cup 1 is properly
placed on one recess 42 of the placement base 40, as shown in FIG. 9. When the operating
button 51 is not pressed, since the operating button 51 is being pushed up by the
coil spring 55, as shown in FIG. 10A, the engaging plate 57 rises; the movable member
54, which has the engaging shaft 59 engaged with the engaging hole 56 formed in the
engaging plate 57, pivots upwardly (in a counterclockwise direction in the drawing)
about the supporting shaft 53; and the second magnet M2 provided at an end of the
movable member 54 is located far from the upper surface of the toy cup 1. In this
state, no attractive force occurs between the second magnet M2 and the first magnet
M1 in the control valve 27 of the toy cup 1.
[0048] When the toy cup 1 has been properly placed in one of the recesses 42, the operating
button 51 projecting from the upper surface of the top plate 41 is pressed down with
a finger, as shown in FIG. 9.
[0049] When the operating button 51 is pressed down, as shown in FIG. 10B, since the engaging
plate 57 is also lowered, the engaging shaft 59 engaged with the engaging hole 56
is also pressed down, the movable member 54 journaled by the supporting shaft 53 pivots
downwardly (in a clockwise direction in the drawing), and the second magnet M2 provided
at the end of the movable member 54 moves to a position directly above the toy cup
1.
[0050] When the second magnet M2 is located directly above the toy cup 1, the first magnet
M1 provided in the control valve 27 is attracted by the second magnet M2, and the
control valve 27 rises against the force of the urging member 31, as in FIG. 5B.
[0051] When the control valve 27 rises, the upper portion of the vent tube 25 is opened,
and the lower chamber LR and the upper chamber UR become communicated with each other
through the vent tube 25, as shown in FIG. 5B. When the vent tube 25 is opened, since
the upper chamber UR is no longer a hermetically sealed space, and the air in the
lower chamber LR can flow into the upper chamber UR via the vent tube 25, as indicated
by the arrow R, the liquid L, which has a specific gravity greater than that of air,
flows into the lower chamber LR through the small holes 23 of the division plate 13,
as indicated by the arrow S, and all of the liquid L in the upper chamber UR moves
into the lower chamber LR, whereby it appears as if the liquid L had been poured from
the toy dispenser 2 into the toy cup 1.
[0052] When the duration for which the operating button 51 is pressed is longer, since the
duration for which the control valve 27 opens the vent tube 25 is increased, the amount
of the liquid L which flows into the lower chamber LR from the upper chamber UR of
the toy cup 1 is increased; and when the duration for which the operating button 51
is pressed is shorter, since the duration for which the control valve 27 opens the
vent tube 25 is decreased, the amount of the liquid L which flows into the lower chamber
LR from the upper chamber UR of the toy cup 1 is decreased. Since the amount of the
liquid L which flows into the lower chamber LR changes in proportion to the duration
for which the operating button 51 is pressed, it is possible to achieve a toy beverage
system which is realistic in that the amount of the liquid L which appears to have
been poured from the toy dispenser 2 into the toy cup 1 can be controlled by adjusting
the duration for which the operating button 51 is pressed.
[0053] In addition, the amount of the liquid L which flows in per unit of time is small
when the toy cup 1 is tilted and the liquid L flows into the upper chamber UR from
the lower chamber LR because the air in the upper chamber UR and the liquid L in the
lower chamber LR replace each other through the small holes 23, but the amount of
the liquid L which flows into the lower chamber LR per unit of time is large when
the toy dispenser 2 is operated and the liquid L in the upper chamber UR is returned
into the lower chamber LR because the air in the lower chamber LR flows into the upper
chamber UR through the vent tube 25, which has an opening with an area larger than
that of the small holes 23, and the liquid L flows into the lower chamber LR through
all of the small holes 23. Therefore, it is possible to reproduce a situation in which
a beverage is poured from a dispenser into a cup in a more realistic manner.
1. A toy cup (1),
characterized by comprising:
a hermetically closed container (10);
a division plate (13) dividing an interior of the hermetically closed container (10)
into an upper chamber (UR) and a lower chamber (LR), the division plate (13) having
a plurality of small holes (23) formed at a periphery thereof at predetermined intervals
for communicating the upper chamber (UR) and the lower chamber (LR) with each other,
and a vent tube (25) provided at a center thereof to communicate the upper chamber
(UR) and the lower chamber (LR) with each other;
a liquid (L) simulating a beverage contained in the container (10), the liquid (L)
moving between the upper chamber (UR) and the lower chamber (LR) through the plurality
of small holes (23);
a control valve (27) for opening and closing the vent tube (25); and
an urging member (31) for urging the control valve (27) so as to close the vent tube
(25),
wherein the control valve (27) operates so as to open the vent tube (25) against an
urging force of the urging member (31) by means of an urge-releasing member.
2. The toy cup (1) according to claim 1, characterized in that the control valve (27) has a first magnet (M1) provided therein; the urge-releasing
member includes a second magnet (M2) acting on the first magnet (M1); and the control
valve (27) is moved against the urging force of the urging member (31) and opens the
vent tube (25) when the second magnet (M2) acts on the first magnet (M1).
3. The toy cup (1) according to claim 2, characterized in that the second magnet (M2) is provided at an end of a toy drink container (35) formed
to simulate a bottle containing a drink.
4. The toy cup (1) according to claim 1,
characterized in that the container (10) is formed of a cup (11) forming the lower chamber (LR) and a cap
(12) forming the upper chamber (UR) combined with the division plate (13) therebetween,
the cap (12) having a pressure-deformable top plate (12a), the top plate (12a) having
a push-button (36) provided in abutment with an inner surface thereof for pressing
down the control valve (27), the push-button (36) constituting the urge-releasing
member; and the control valve (27) is pressed down through the push-button (36) and
the vent tube (25) is opened when the top plate of the cap (12) is pressed from above.
5. A toy dispenser (2) for simulating dispensing of a beverage into a toy cup (1) according
to claim 1, the toy dispenser (2)
characterized by comprising:
a placement base (40), on which the toy cup (1) is placed; and
a control device (50) provided above the placement base (40), the control device (50)
controlling opening and closing of the vent tube (25) by the control valve (27).
6. The toy dispenser (2) according to claim 5, characterized in that the control valve (27) has a first magnet (M1) provided therein; the control device
(50) includes a movable member (54) having a second magnet (M2) constituting the urge-releasing
member, the movable member (54) moving toward and away from the control valve (27),
and an operating member (51) for operating the movable member (54); and the movable
member (54) comes into proximity to the control valve (27), and the second magnet
(M2) acts on a first magnet (M1) provided in the control valve (27) and moves the
control valve (27) against the urging force of the urging member (31) to open the
vent tube (25) when the operating member (51) is operated.
7. The toy dispenser (2) according to claim 6, characterized in that the toy dispenser (2) is formed in a shape of a box having an open front and has
a top plate (41) disposed above the placement base (40); the operating member (51)
protrudes at an upper portion thereof from the top plate (41), is disposed in a vertically
movable manner, and has a horizontally elongated engaging hole (56); the movable member
(54) is pivotably journaled on the top plate (41) at an upper end thereof, has the
second magnet (M2) disposed at a lower end thereof, and has an engaging shaft (59)
for engaging with the engaging hole (56); and the movable member (54) pivots downwardly,
and the second magnet (M2) becomes located immediately above the first magnet (M1)
of the control valve (27) and raises the control valve (27) by means of an attractive
force between the second magnet (M2) and the first magnet (M1) against the urging
force of the urging member (31) when the operating member (51) is pressed down.