Wet tissue warmer and tissue lifting plate

Information

  • Patent Grant
  • 6331696
  • Patent Number
    6,331,696
  • Date Filed
    Thursday, September 14, 2000
    24 years ago
  • Date Issued
    Tuesday, December 18, 2001
    23 years ago
Abstract
A wet tissue warmer includes: a case (2) having an open end (2a), a lid (3) removably put on the case (2) so as to cover the open end (2a) of the case (2) and internally provided with a heater, and a lifting plate (9) placed in the case (2) and biased upward. When the lid (3) is closed, a wet tissue package (A) mounted on the lifting plate (9) is kept in contact with the lid (3) to heat the wet tissue package (A). Lifting plate locking devices (11) are disposed in the case (2). The lifting plate (9) is locked at the present position by the lifting plate locking devices (11) when the lid (3) is opened.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a wet tissue warmer.




2. Description of the Related Art




Disposable wet tissues are used prevalently in substitution for small damp towels for wiping hands, kitchen uses, cleaning toilets, clearing up babies' and sick persons' mess and such. Containers for containing disposable wet tissues are classified roughly into bolt type (cylindrical) containers, box type (box-shaped) containers and pouch type containers.




Wet tissues are cold in a cold season and hence there is the possibility that wet tissues give babies and sick persons an unpleasant feeling when wet tissues for cleaning up babies, and sick persons' mess are used in a cold season, such as winter.




Wet tissue warmers have been used to warm wet tissues. However, wet tissue warmers consume power and take a long time to heat wet tissues at an optimum temperature, and wet tissue warmers of a large capacity are necessary to heat wet tissues quickly at an optimum temperature.




The applicant of the present application previously invented a wet tissue warmer and made an application for patent (JP-A No. Hei 8-117137). This wet tissue warmer has a wet tissue container provided with a lid, and heating device attached to the inner surface of the lid. A stack of wet tissues id pressed against the heating device to heat the upper layers of wet tissues.





FIG. 13

shows this wet tissue warmer


100


.




The wet tissue warmer


100


includes a case


103


, a lifting plate


102


placed in the case


103


, springs


101


biasing the lifting plate


102


upward, and a removable lid


104


covering an open upper end


103




a


of the case


103


. The lid


104


is provided in its central part with a tissue dispensing opening


105


covered with a small cover


106


. A heating unit


107


is formed by placing a heater


108


in a region excluding a region in which the tissue dispensing opening


105


is formed on the inner surface of the lid


104


.




As shown in

FIG. 13

, a wet tissue package A is placed on the lifting plate


102


of the wet tissue warmer


100


. The wet tissue package A is pressed against the heating unit


107


on the lid


104


for heating by the resilience of the springs


101


. When using wet tissues a, the small cover


106


is opened and the wet tissues a are taken out one by one.




The wet tissue warmer


100


is able to heat a portion of the wet tissue package A near a tissue dispensing part selectively and hence wet tissues a to be used at present can be efficiently heated.




Since the wet tissue package A contained in this wet tissue warmer


100


is pressed against the inner surface of the lid


104


, i.e., the lower surface of the heating unit


107


, a high resistance acts on the wet tissue a when the wet tissue a is taken out and hence the wet tissue a cannot be easily taken out. If the pressure applied to the wet tissue package A is reduced to enable the wet tissues a to be taken out easily, it is possible that the wet tissue a cannot be closely pressed against the inner surface of the lid


104


and cannot be satisfactorily heated.




SUMMARY OF THE INVENTION




Accordingly, it is an object of the present invention to provide a wet tissue warmer capable of solving the foregoing problems, of satisfactorily heating a wet tissue to be used at present and of facilitating taking out a wet tissue.




According to the present invention, a wet tissue warmer for warming a wet tissue package including a wet tissue includes a case having an open end, a lid removably put on the case so as to cover the open end of the case and internally provided with a heater, a lifting plate placed in the case, supporting the wet tissue package and biased upward so as to press the wet tissue package against the lid by a first spring, and movement obstructing means for obstructing upward movement of the lifting plate.




According to the present invention, the lifting plate placed so as to be movable in the case of the wet tissue warmer has a raised central part.




According to the present invention, the movement obstructing means, such as a locking means, locks the lifting late to prevent the lifting plate from biasing the wet tissue package when a wet tissue is taken out.




Accordingly, according to the present invention, the wet tissue package is pressed by a high force against the lid with the built-in heater to sufficiently heat a wet tissue when the wet tissue is not used. When the wet tissue is used, the pressing of the wet tissue package against the lid is prevented to facilitate taking out wet tissues.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an exploded perspective view of a wet tissue warmer in a first embodiment according to the present invention;





FIG. 2

is an exploded perspective view of a lifting plate locking device, which is a principal part of the wet tissue warmer shown in

FIG. 1

;





FIG. 3A

is a sectional view of an essential part of the lifting plate locking device shown in

FIG. 2

in an inoperative state;





FIG. 3B

is a sectional view of an essential part of the lifting plate locking device shown in

FIG. 2

in an operative state;





FIG. 4

is a perspective view of the wet tissue warmer shown in

FIG. 1

in a state where a wet tissue is being taken out;





FIG. 5A

is a sectional view of a first modification of the lifting plate locking device of the wet tissue warmer shown in

FIG. 1

in an inoperative state;





FIG. 5B

is a sectional view of the lifting plate locking device shown in

FIG. 5A

in an operative state;





FIG. 6A

is a sectional view of a second modification of the lifting plate locking device of the wet tissue warmer shown in

FIG. 1

in an inoperative state;





FIG. 6B

is a sectional view of the lifting plate locking device shown in

FIG. 6A

in an operative state;





FIG. 7A

is a conceptional perspective view of a lifting plate locking device included in a wet tissue warmer in a second embodiment according to the present invention;





FIG. 7B

is a view of a driving gear and a driven gear;





FIG. 8

is an exploded perspective view of a wet tissue warmer provided with a lifting plate formed in the shape of a raised bottom and having a raised central part





FIG. 9

is a perspective view of the lifting plate shown in

FIG. 8

;





FIG. 10A

is a view of assistance in explaining the effect of the lifting plate formed in the shape of a raised bottom;





FIG. 10B

is a view of assistance in explaining the effect of a flat lifting plate;





FIG. 11

is a perspective view of the wet tissue warmer shown in

FIG. 8

in a state where a wet tissue is being taken out;





FIG. 12

is a view of another lifting plate locking device of a lifting plate that can be incorporated into the wet tissue warmer shown in

FIG. 8

; and





FIG. 13

is a sectional view of a conventional wet tissue warmer.











DESCRIPTION OF THE PREFERRED EMBODIMENTS




Wet tissue warmers according to the present invention will be described hereinafter with reference to the accompanying drawings.





FIG. 1

is an exploded perspective view of the wet tissue warmer in a first embodiment according to the present invention,

FIG. 2

is an exploded perspective view of a lifting plate locking device, which is a principal part of the wet tissue warmer shown in

FIG. 1

,

FIGS. 3A and 3B

are sectional views of an essential part of the lifting plat locking device shown in

FIG. 2

, and

FIG. 4

is a perspective view of the wet tissue warmer shown in

FIG. 1

in a state where a wet tissue a is being taken out.




As shown in

FIG. 1

, a wet tissue warmer


1


includes a case


2


having an open upper end


2




a


, a lid


3


covering the open end


2




a


and capable of being opened and closed, and an inner lid


4


between the case


2


and the lid


3


. Sides of the lid


3


and the inner lid


4


of the wet tissue warmer


1


are connected respectively by hinges


5


and


6


to the case


2


. Sides of the lid


3


and the inner lid


4


opposite those hinged to the case


2


are fastened to the case


2


by catching devices


7


and


8


. The case


2


has a substantially rectangular horizontal section corresponding to the shape of a wet tissue package A. A lifting plate


9


is placed in the case


2


. The lifting plate


9


is biased upward by a compression coil spring (first spring)


10


extended between the lifting plate


9


and the bottom wall of the case


2


.




Lifting plate locking devices


11


are disposed on the opposite end walls


2




b


of the case


2


to lock the lifting plate


9


biased upward. Each lifting plate locking device (movement obstructing means)


11


includes a covering member


12


as shown in

FIG. 2

that are joined to the end walls


2




b


of the case


2


to define a space, a locking member


14


provided with a plurality of teeth


13


that engage the lifting plate


9


(FIG.


1


), and an operating plate


15


that operates the locking member


14


according to the opening and closing operations of the lid


3


. The covering member


12


has a U-shaped horizontal section. The covering member


12


has a front wall


12




a


extending opposite to the end wall


2




b


of the case


2


and provided with a rectangular slot


16


. The covering member


12


has a top wall


12




b


provided with a slot


17


. The front wall


12




a


of the covering member


12


is provided on the back surface of a lower part thereof with a rib


18


. The teeth


13


of the locking member


14


are formed in a vertical arrangement on a surface of a base


14




a


. Elastic strips (second springs)


19


that work as leaf springs are formed on middle parts of the opposite side walls of the base


14




a


. The strips


19


are curved backward. The operating plate


15


is provided with an opening


20


in its central part, and a top end wall


15




a


extending backward.




As shown in

FIG. 3A

, a screw


21


is screwed into the rib


18


to fasten the covering member


12


to the case


2


. The operating plate


15


is extended on the back surface of the front wall


12




a


so as to be vertically movable. The locking member


14


is extended along the back surface of the operating plate


15


with the teeth


13


thereof received in the opening


20


of the operating plate


15


and the slot


16


of the covering member


12


. In the lifting plate locking device


11


thus assembled, the locking member


14


is biased toward the interior of the case


2


by the strips


19


.




The lid


3


has a heating unit


22


(

FIG. 1

) having a built-in heater and formed on the lower surface thereof. Projections


23


(

FIG. 1

) projects from the opposite ends of the lid


3


. The lid


3


is provided on its upper surface with a knob


24


(FIG.


1


).




The inner lid


4


is formed of an elastic resin or the like in the shape of a thin plate and is provided with an H-shaped tissue opening


25


having a slit


25




b


and circular slots


25




a


connected to the opposite ends of the slit


25




b


, respectively. A circular opening


25




c


is formed in a middle part of the slit


25




b


. Slots


26


are formed in the opposite ends of the inner lid


4


, respectively. The inner lid


4


can be moved in a direction in which a wet tissue a included in the wet tissue package is pulled to take out the same. In a state where the lid


3


is closed, the inner lid


4


is in contact with the lower surface of the lid


3


to transmit heat generated by the heating unit


22


to the wet tissue package A. When the lid


3


is opened, the lifting plate locking devices


11


lock the lifting plate


9


. Two flexible portions of the inner lid


4


defining the H-shaped wet tissue opening


25


are bent elastically and the slit


25




b


is expanded when a wet tissue a is pulled, so that the wet tissue a can be easily taken out. An inner lid other than the inner lid


4


provided with the H-shaped wet tissue opening


25


may be used, provided that the material and construction of the inner lid permit the inner lid to flex in a direction in which a wet tissue a is pulled to take out the same.




The lid


3


and the inner lid


4


are connected so as to be opened and closed to the case


2


by the hinges


5


and


6


, respectively. The wet tissue package A is mounted on the lifting plate


9


placed in the case


2


, and then the inner lid


4


is closed. In this state, the lifting plate


9


is biased upward by the spring


10


to press the upper surface of the wet tissue package A against the inner lid


4


.




When the lid


3


is closed to store the wet tissues a, the projections


23


of the lid are inserted through the slots


17


of the covering members


12


of the lifting plate locking devices


11


into the covering members


12


and depress the operating plates


15


as shown in FIG.


3


A. Consequently, the upper edge of the opening


20


of the operating plate


15


and the lower edge of the operating plate


15


of each lifting plate locking devices


11


are engaged with the inclined upper surfaces


13




a


of the top and the bottom tooth


13


of the locking member


14


, respectively, to push the locking member


14


down. Thus, the locking member


14


is retracted toward the end wall of the case


2


against the resilience of the elastic strips


19


. Then, the lifting plate


9


is released and, consequently, the lifting plate


9


can be moved upward by the spring


10


to press the wet tissue package A mounted on the lifting plate


9


against the inner lid


4


. Although the inner lid


4


is interposed between the heating unit


22


and the wet tissue package A, the wet tissues a in upper layers of the wet tissue package A can be held near the heating unit


22


of the lid


3


and can be efficiently heated.




When the lid


3


is opened to use the wet tissues a, the projections


23


of the lid


3


are pulled out of the slots


26


of the inner lid


4


and the slots


17


of the covering members


12


as shown in FIG.


3


B. Consequently, the elastic strips


19


of the locking member


14


of each lifting plate locking device


11


push the locking member


14


away from the end wall


2




b


of the case


2


and the operating plate


15


is raised by the teeth


13


of the locking member


14


. In this state, the edges of the teeth


13


project by a distance t from the front surface of the front wall


12




a


of the covering member


12


and the horizontal lower surface


13




b


of the tooth


13


immediately above the edge of the lifting plate


9


are engaged with the lifting plate


9


to hold the lifting plate


9


against the resilience of the spring


10


and to restrain the same from upward movement.




When the wet tissue a is pulled to take the same out of the wet tissue package A, portions of the inner lid


4


around the wet tissue opening


25


are bent upward by the wet tissue a as shown in

FIG. 4 and a

space is formed between the inner lid


4


and the wet tissue package A accordingly. Thus, the wet tissue a can be easily taken out from the case


2


.




In the wet tissue warmer


1


in the first embodiment, each tooth


13


of the locking member


14


of each lifting plate locking device


11


has the inclined upper surface


13




a


, the operating plate


15


is pressed against the inclined upper surfaces


13




a


of the teeth


13


to retract the locking member


14


from its locking position to release the lifting plate


9


. The operating plate


15


is released so that the locking member


14


is able to advance to the locking position so that the horizontal lower surface


13




b


of the tooth


13


engages the lifting plate


9


to restrain the lifting plate


9


from upward movement. Since the portions of the elastic inner lid


4


around the wet tissue opening


25


are bent and a space is formed between the inner lid


4


and the wet tissue package A when the wet tissue a is pulled, the wet tissue a can be easily taken out from the case


2


.





FIG. 5A

shows a lifting plate locking device in a modification of the lifting plate locking device


11


included in the wet tissue warmer in the first embodiment. As shown in

FIG. 5A

, a locking member


14


is provided with teeth


13


each having an inclined lower surface


13




b


. When the locking member


14


is released, the inclined lower surface


13




b


of the tooth


13


in contact with the lifting plate


9


depresses the lifting plate


9


as shown in FIG.


5


B.





FIG. 6A

shows a lifting plate locking device in a second modification of the lifting plate locking device of the wet tissue warmer in the first embodiment. A locking member


14


is provided with only two teeth


13


corresponding to the top and the bottom tooth


13


of the lifting plate locking device


11


included in the wet tissue warmer in the first embodiment, and a friction plate


27


. The friction plate


27


is a substitute for the teeth


13


between the top and the bottom tooth


13


of the lifting plate locking device


11


included in the wet tissue warmer in the first embodiment. The operating plate


15


comes into contact with the inclined upper surfaces


13




a


of the top and the bottom tooth


13


to operate the locking member


14


. When the locking member


14


is released from the operating plate


15


as shown in

FIG. 6B

, the friction plate


27


is pressed against the lifting plate


9


to restrain the lifting plate


9


from upward movement.




In the wet tissue warmers in the first embodiment and the modifications, the locking member


14


is extended along the inner surface of the end wall of the case


2


so as to be moved toward and away from the end wall, the locking member


14


is moved toward the interior of the case


2


when the lid


3


is opened to bring the tooth


13


or the friction plate


27


of the locking member


14


into engagement with a peripheral part of the lifting plate


9


to lock the lifting plate


9


at the present position. The elastic strips


19


of the locking member


14


may be omitted and the locking member


14


may be biased by a coil spring or the like. The locking member


14


may be received in a space formed in the case


2


instead of the space defined by the covering member


12


; the locking member


14


may be operated by any one of various operating structures other than the operating plate


15


. The locking member


14


may be operated directly by the projection


23


of the lid


3


. The locking member


14


does not need necessarily to be interlocked with the lid


3


; the locking member


14


may be operated by a push button or an operating lever incorporated into the lid


3


or a wall of the case


2


.





FIGS. 7A and 7B

is a conceptional perspective view of a lifting plate locking device


11


included in a wet tissue warmer in a second embodiment according to the present invention. As shown in

FIG. 7A

, a wire


28


has one end connected to the lower surface of a lifting plate


9


and the other end attached to a drum


30


supported on an upper part of a case


2


. The wire


28


is extended through pulleys


29


and is wound round the drum


30


. The drum


30


is biased for turning in one direction by a torsion coil spring (third spring)


31


. A driven gear


32


is fixedly mounted on the shaft


30




a


of the drum


30


, and a driving gear


33


is engaged with the driven gear


32


. The shaft


33




a


of the driving gear


33


is connected, for example, to a hinge


5


connecting a lid


3


to a case


2


so that the driving gear


33


is turned by the opening operation of the lid


3


. The driving gear


33


is an incomplete gear having a tooth-lacking section


34


. When the lid


3


is closed, the tooth-lacking section


34


coincides with the driven gear


32


and hence the gears


32


and


33


are disengaged with each other. The torsion coil spring


31


functions only to take up a slack in the wire


28


and the biasing force of the torsion coil spring


31


is very low as compared with the biasing force of a coil spring


10


biasing the lifting plate


9


upward.




The gears


32


and


33


of the lifting plate locking device (movement obstructing means)


11


thus constructed are disengaged when the lid


3


is closed. Therefore, the lifting plate


9


is biased upward by the coil spring


10


to raise a wet tissue package A mounted thereon. When the lid


3


is opened, the driving gear


33


is turned, the driving gear


33


and the driven gear


32


are engaged and the drum


30


is rotated to wind the wire


28


. Consequently, the lifting plate


9


is lowered together with the wet tissue package A against the biasing force of the coil spring


10


and thereby pressure acting on the wet tissue package A is reduced. This state is maintained as long as the lid


3


is open.




In the lifting plate locking device (movement obstructing means)


11


employed in the second embodiment, the drum


30


is supported on the case


2


, one end of the wire


28


is connected to the lifting plate


9


and the other end of the wire


28


is wound on the drum


30


. The drum


30


is rotated and the wire


28


is taken up by the opening action of the lid


3


to lower the lifting plate


9


. The drum


30


may be rotated by any one of various rotative driving mechanisms. For example, the driven gear


32


may be engaged with a rack formed on the lid


3


and the driven gear


32


may be driven by the rack to rotate the drum


30


. The rack must have a tooth-lacking section.




The driving gear


33


is driven for rotation by the opening and closing operations of the lid


3


in the second embodiment. The driving gear


33


may be driven for rotation by a suitable mechanism other than that employed in the second embodiment; the driving gear


33


may be operated by a push button or an operating lever incorporated into the lid


3


or a wall of the case


2


. The case


2


may be provided with a small built-in motor to drive the driving gear for rotation, which will reduce force necessary to open and close the lid


3


.




In either the wet tissue warmer in the first embodiment or the wet tissue warmer in the second embodiment, the entire lid


3


is opened. Naturally, a wet tissue warmer according to the present invention my be provided with a small lid like the small cover


106


of the wet tissue warmer shown in FIG.


13


and only the small lid may be opened and closed.




Although the wet tissue warmers in the first and the second embodiment are provided with the flat lifting plates


9


, it is desirable, in view of properly applying the present invention to wet tissue warmers for containing wet tissue packages of various types available on the market, to employ lifting plates formed in the shape of a raised bottom and having a raised central part as shown in

FIGS. 8

to


12


. A lifting plate


9


′ shown in

FIG. 9

is formed in the shape of a raised bottom and has a central raised part


9





a


and flat bottom parts


9





b


. The superiority of the lifting plate


9


′ having the central raised part


9





a


to the flat lifting plate


9


will be described with reference to

FIGS. 10A and 10B

.




Wet tissue packages of various sizes are on the market. Large wet tissue packages are, for example, 165 mm×105 mm×65 mm and 170 mm×90 mm×50 mm, respectively. A small wet tissue package is, for example, 155 mm×85 mm×45 mm. End parts of some wet tissue packages are soft and those of some other ones are comparatively hard and difficult to collapse.




When a wet tissue package A having soft end parts is placed on the lifting plate


9


and the inner lid


4


and the lid


3


are pressed against the wet tissue package A to heat the wet tissues, the wet tissue package A can be easily collapsed by the pressure exerted thereon by the compression coil spring


10


and the wet tissue package A can be pressed against the inner lid


4


. Therefore, any particular problems do not arise. When a wet tissue package A having hard end parts A


1


which are relatively hard to collapse is contained in the wet tissue warmer, the end parts A


1


of the wet tissue package A cannot be collapsed by the pressure F of the compression coil spring


10


and a space of a thickness t


2


is formed. Consequently, the wet tissues a contained in the wet tissue package A cannot be pressed against the inner lid


4


. Therefore, a compression coil spring capable of exerting a pressure higher than the pressure F exerted by the compression coil spring


10


must be used. However, such usage of the compression coil spring with a higher pressure makes it difficult to take out a wet tissue a from the wet tissue warmer.





FIG. 10A

is a view of assistance in explaining the effect of the lifting plate


9


′ having the central raised part


9


′ a as shown in

FIGS. 9

to


12


. Suppose that the wet tissue package A has hard end parts A


1


relatively difficult to collapse. When the wet tissue package A is mounted on and raised by the lifting plate


9


′ , a pressure F is applied to only a central part of the wet tissue package A by the central raised part


9





a


of the lifting plate


9


′ , the central part of the wet tissue package A is collapsed and the relatively hard end parts A


1


remain uncollapsed over the flat bottom parts


9





b


. Consequently, the top wet tissue a contained in the wet tissue package A can be pressed against the inner lid


4


.




The lifting plate


9


′ having the raised central part


9





a


, as compared with the flat lifting plate


9


, needs a relatively low resilience to lift up the wet tissue package A. Therefore, the lifting plate


9


′ having the raised central part


9





a


presses the wet tissue package A against the inner lid


4


by a relatively low pressure and hence the wet tissues a can be easily taken out from the wet tissue warmer. When the wet tissue warmer is designed so as to heat a portion of the upper surface of the wet tissue package A around the wet tissue dispensing opening, the wet tissue package A can be properly pressed against the heating unit


22


and hence the thermal efficiency of the heating unit


22


can be improved.




Practically, a central part of a wet tissue a is used for wiping and hence the central part of the wet tissue a needs to be heated. Therefore, any particular problem does not arise even if a peripheral part of the wet tissue a is not heated sufficiently.




As apparent from the foregoing description, the wet tissue warmer according to the present invention includes the case having an open end, a lid removably put on the case so as to cover the open end of the case and internally provided with a heater, and a lifting plate placed in the case and biased upward. When the lid is closed, the wet tissue package mounted on the lifting plate is pressed against the lid to heat the wet tissue package. The case is provided with the movement obstructing means to lock the lifting plate at the present position by the movement obstructing means when the lid is opened.




According to the present invention, when taking out a wet tissue from the wet tissue warmer, application of pressure to the wet tissue package can be deterred by locking the lifting plate by the movement obstructing means. Therefore, the wet tissue package is pressed against the heating unit by a high pressure when the lid is closed to store the wet tissues to heat the wet tissues satisfactorily. The wet tissue can be easily taken out from the wet tissue warmer by deterring the pressing of the wet tissue package against the heating unit when taking out the wet tissue.



Claims
  • 1. A wet tissue warmer for warming a wet tissue package including a wet tissue, said wet tissue warmer comprising:a case having an open end; a lid removably positioned on the case so as to cover the open end of the case; a heater disposed internally of the lid; a lifting plate, placed in the case, for supporting a wet tissue package; a first spring engaging the lifting plate and biasing the lifting plate upward so as to press the wet tissue package against the lid; and movement obstructing means for obstructing upward movement of the lifting plate, the movement obstructing means including a plurality of locking members placed in the case, wherein each of the locking members are provided with teeth capable of engaging the lifting plate.
  • 2. The wet tissue warmer according to claim 1, wherein each locking member is provided with second springs in contact with an end wall of the case to bias the locking member toward the interior of the case,the lid is provided with projections projecting downwardly, and an operating plate is disposed contiguously with each locking member, the operating plate being operated by the corresponding projection of the lid so as to move the locking member toward the end wall against force exerted by the second springs on the locking member when the lid is closed.
  • 3. The wet tissue warmer according to claim 2, wherein each locking member is provided with a plurality of teeth formed in a vertical arrangement, the top and the bottom tooth of the plurality of teeth each have an inclined upper surface that engages the operating plate.
  • 4. The wet tissue warmer according to claim 2, whereineach locking member and each operating plate are placed in a space defined by a covering member disposed in the case and provided with an opening, and the teeth of the locking member project through the opening of the covering member toward the interior of the case when the lid is opened.
  • 5. The wet tissue warmer according to claim 1, wherein each of the teeth of each locking member has a horizontal lower surface that is engaged with the lifting plate.
  • 6. The wet tissue warmer according to claim 1, wherein each of the teeth of each locking member has an inclined lower surface that is engaged with the lifting plate.
  • 7. The wet tissue warmer according to claim 1, further comprising an inner lid disposed between the lid and the lifting plate and being warped in a direction in which the wet tissue is pulled to take out the same.
  • 8. The wet tissue warmer according to claim 1, wherein the lifting plate has a raised central part.
Priority Claims (2)
Number Date Country Kind
11-260693 Sep 1999 JP
11-260694 Sep 1999 JP
US Referenced Citations (13)
Number Name Date Kind
3947134 Ogawa Mar 1976
4084080 McMahan Apr 1978
4694973 Rose et al. Sep 1987
4700048 Levy Oct 1987
4890205 Shaffer Dec 1989
4918290 DeMars Apr 1990
4943705 Halloran Jul 1990
5004894 Whitehead Apr 1991
5036178 Orbach Jul 1991
5210396 Sanders May 1993
5231266 Warren Jul 1993
6005227 Pappas Dec 1999
6046436 Hunts Apr 2000