| (19) |
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(11) |
EP 2 977 500 A1 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (43) |
Date of publication: |
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27.01.2016 Bulletin 2016/04 |
| (22) |
Date of filing: 21.07.2014 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA ME |
| (71) |
Applicant: Whirlpool Corporation |
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Benton Harbor, MI 49022 (US) |
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| (72) |
Inventors: |
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- Balalenin, Rengaraj
21025 Comerio (IT)
- Herzel, Stefan
21025 Comerio (IT)
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| (74) |
Representative: Guerci, Alessandro |
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Whirlpool Europe S.r.l.
Patent Department
Viale G. Borghi 27 21025 Comerio (VA) 21025 Comerio (VA) (IT) |
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| (54) |
Washing machine or dryer with a front bottom panel |
(57) A washing machine, dryer or washer dryer (10) comprises an housing (12, P) with a
front face (12a) having a front plastic panel (16) which can be detached from said
front face (12a) and covers technical component of the appliance, as a filter or the
like. The removable panel (16) comprises a latching mechanism including a first element
(22) which is configured to be elastically actuated by the user and a second element
(24) which cooperates elastically with the first element (22) and presents a catch
(28) configured to cooperate with a corresponding portion (30) of the housing (12)
, said first and second element being integral with the panel.
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[0001] The present invention relates to a laundry treatment appliance comprising a housing
with a front face having a panel which can be detached from the front face of the
appliance.
[0002] With the term "laundry treatment appliance "we mean any appliance which can wash
or dry clothes, or can perform washing and drying altogether.
[0003] In such kind of appliances it is well known the use of a removable front panel, usually
made of polymeric material, which can be detached from the font face and which hides
technical components of the appliance, for instance a removable filter, which would
interfere with the overall appearance of the appliance. The present systems for fixing
such panel to the appliance do exploit generally the intrinsic flexibility of the
plastic component, but usually it is not clear to the user where the panel should
be preferably grasped for an easy detachment. Moreover, depending on the usual tolerances
in the process of injection molding used for producing the panel, it may happen that
the force needed to remove the panel is higher than expected, creating therefore problems
to the user who may need to consult the user's manual for understanding how to remove
the panel.
[0004] It is therefore an object of the present invention to provide an appliance of the
above type which does not present the above problem and in which the front panel can
be easily and reliably removed from the front face of the appliance.
[0005] According to the invention, such object is reached thanks to the features listed
in the appended claims.
[0006] According to the invention, a push button and a related latching mechanism is integral
with the panel so that the user can easily unclip the panel from the housing. On the
other hand, the solution according to the invention gives the advantages and feeling
of a dedicated button without the mechanical complication of a mechanical latching
system having several pieces.
[0007] According to a preferred feature of the present invention, two push-buttons and related
latching mechanisms are associated with respective side walls of the panel which are
usually flush with the side walls of the appliance.
[0008] Further features and advantages of an appliance according to the present invention
will become clear from the following detailed description, with reference to the attached
drawings in which:
- Figure 1 is a perspective view of a washing machine according to the invention;
- Figures 2-3 are perspective views similar to figure 1 which show a configuration in
which the panel is rotated and detached from the housing respectively;
- Figures 1A, 2A and 3A are enlarged views of details of figures 1, 2 and 3;
- Figure 4 is a perspective view of a portion of the panel used in the washing machine
of figure 1;
- Figure 5 is a rear view of the same portion of the panel of figure 4; and
- Figure 6 is a perspective cross sectioned view along line VI-VI of the portion of
the washing machine shown in figure 1A.
[0009] With reference to the drawings, a washing machine 10 comprises a housing 12 having
a front face 12a. The front face 12a, which can be integral with the housing or can
be mounted on the housing as a component, has a central opening for a door D which
allows loading/unloading of laundry in a drum (not shown). In an upper zone the front
face 12a presents a control panel 14 and a drawer 15 for detergents and other washing
additives. In the lower zone of the front face 12a, the washing machine 10 presents
a removable plastic panel 16 which covers a base or plinth P of the machine and which
has two side walls 16a flush with side walls S of the washing machine 10 and a front
wall 16b flush with the visible portion V of the front face 12a, in order to create
a shape continuity therewith.
[0010] According to the invention, each side wall 16a of the panel 16is provided with an
opening 18 in which a push-button 20 is operatively placed. Such push-button 20 is
part of an elongated integral cantilevered piece 22 of the panel which branches out
in 22a from said side wall 16a and which presents an operating end 22b whose function
will be clear from the following description. By pressing the push-button 20 (horizontal
arrow shown in figure 1A, 4, 5 and 6) the elongated piece 22 substantially rotates,
thanks to intrinsic flexibility of the plastic material, around an horizontal axis
X-X.
[0011] In a similar manner, the front wall 16b of the panel, on its rear side, is provided
with two integral cantilevered pieces 24 where each presents a tab portion 24a and
an end shaped portion 24b which defines an inclined surface 26 and a V-shaped catch
28 adapted to cooperate with a corresponding opening 30 of the hosing 12. The operating
end 22b of the piece 22, in the idle configuration of the latching mechanism shown
in the drawings, is very close to the inclined surface 26 of the related piece 24.
[0012] By pressing the push-button 20, the operating end 22b of the piece 22 acts by friction
on the inclined surface 26 of the piece 24, therefore substantially prompting a rotation
of the piece 24 around an horizontal axis Y-Y substantially perpendicular to the axis
X-X of the first piece 22, therefore removing the catch 28 from the opening 30 and
allowing a removal of the panel 16 from the appliance. The rotation of the piece 24
around axis Y-Y is allowed by the intrinsic flexibility of the plastic material of
the panel 16. Once the action by the user on the push buttons 20 (one for each side)
is terminated, the same elasticity of the material allows the latching mechanism to
assume again the idle position shown in the drawings. The detaching phase is shown
particularly in figures 2 and 3. The initial rotation shown in figures 2 and 2a is
allowed by the presence of integral tabs (not shown) which cooperate with openings
32 in the housing 12 and which helps in positioning correctly the panel 16 on the
plinth. After such initial rotation, the panel 16 is completely detached from the
housing 12 (figures 3 and 3A) allowing the user to reach components of the appliance,
for instance the removable filter F shown in figure 3A for cleaning purposes.
[0013] From the above description the advantages of a solution according to the present
invention are clear, i.e. to provide performances of more expensive and complex latching
system with simple parts integral with the panel, which are obtained directly in the
injection molding process.
1. Laundry treatment appliance (10), comprising a housing (12, P) with a front face (12a)
having a front panel (16) which can be detached from said front face (12a), characterized in that said panel (16) comprises at least one latching mechanism including a first element
(22) which is configured to be actuated by the user and a second element (24) which
cooperates with the first element (22) and presents a catch (28) configured to cooperate
with a corresponding portion (30) of the housing (12).
2. Appliance according to claim 1, wherein said first and second element (22, 24) are
integral with the panel (16) and are elastically driven towards an idle position.
3. Appliance according to claim 1 or 2, wherein the panel (16) presents two side walls
(16a) and a front wall (16b), two latching mechanisms (22, 24, 28) being provided
on or adjacent said side walls (16a).
4. Appliance according to claim 3, wherein each first element (22) is cantilevered and
presents an elongated shape with a button portion (20) placed in a corresponding opening
(18) of the side wall (16a) of the panel (16) and configured to move toward the inner
side of the panel (16) under the press action of an user, such first element (22)
presenting a portion (22b) configured to cooperate with a surface (26) of the second
element (24) which is configured to move in a substantially vertical direction in
order to cooperate with said portion (30) of the housing (12).
5. Appliance according to claim 4, wherein said portion of the housing is an opening
(30) in which a catch portion (28) of the second element (24) can enter.
6. Appliance according to claim 4 or claim 5, wherein the surface (26) of the second
element (24) configured to cooperate with the first element (22) is an inclined surface
(26).
7. Appliance according to any of the preceding claims, wherein the first element (22)
is configured to substantially rotate around a first horizontal axis (X-X) and the
second element (24) is configured to substantially rotate around a second horizontal
axis (Y-Y) which is substantially perpendicular to the first axis (X-X).
8. Appliance according to any of the preceding claims, wherein said panel (16) is made
of polymeric material.