WO2018103832A1

WO2018103832A1 - A laundry treatment appliance having an improved door handle assembly

Info

Publication number: WO2018103832A1
Application number: PCT/EP2016/079972
Authority: WO
Inventors: Servet CATALTEPE; Salih YILDIRIM; Ergin METIN; Bugra CETINKAYA; Yunus Emre AYDOGDU
Original assignee: Arcelik Anonim Sirketi
Priority date: 2016-12-07
Filing date: 2016-12-07
Publication date: 2018-06-14
Also published as: EP3551796B1; EP3551796A1; TR201715629A2

Abstract

The present invention relates to a laundry treatment appliance having a front door (1) comprising a handle assembly (4) providing increased durability of the door handle assembly and simplified installation.

Description

A LAUNDRY TREATMENT APPLIANCE HAVING AN IMPROVED DOOR HANDLE ASSEMBLY

The present invention relates to a laundry treatment appliance, such as a laundry washing and/or drying machine, having a front door comprising a handle assembly whereby the durability of the door handle assembly is improved and its installation is simplified.

It is well-known that laundry treatment appliances such as washing machines, drying machines and combo washing/drying machines comprise a rotary drum in which cloth items are placeable and accessible via a front door, a water tub in which the rotary drum is rotatable and a motor providing said rotary drum to be driven by means of a pulley mechanism, the latter being disposed outside said tub. To this end, laundry treatment appliances have front doors typically allowing access into the rotary drum for loading and unloading the laundry to be processed.

A front door locking mechanism typically functions in the manner that a handle associated with a handle lever is rotatable to drive a hook lever, the latter being actuatable to lock or unlock the front door. When the door is closed, the hook settles into a locking slot of a locking arm while a safety latch provides an interengaged connection with the hook to ensure fixedly closing of the door.

The above-described mechanical design allows a given user to reach for a handle cover to unlock the front door of the laundry treatment machine by way of retracting the handle lever relative to the handle cover. It is to be noted that the mechanical structure outlined above can be designed by various connection elements, which may substantially affect production efficiency of the laundry treatment machine as a large number of individual elements can be necessary for the operation of the locking mechanism.

Therefore, a more efficient manner of providing operational functionality with a simplified mechanical structure is desirable so as to decrease manufacturing costs through reduction of involved components and accordingly man-hours. In addition, due to the shape and design of the door of the laundry treatment device, only a narrow space is available for the placement of the components for the attachment of the handle assembly. Therefore, it is advantageous to use specially designed attachment components to fit in the available space. In this way, the handle attachment components are easily hidden beneath the handle of the front door and also do not cause irritation to the user’s hand by forming a rough surface on the back of the handle.

The present invention proposes a laundry treatment machine with an alternative simplified mechanical arrangement to obtain a front door handle assembly in a laundry treatment machine.

Among others, a prior art publication in the technical field of the invention may be referred to as WO2013189859, which discloses a door assembly for a laundry treatment appliance that comprises a first and a second component attachable to each other by at least one snap-fit connector. The first component is on the drum facing surface of the front door, and the second component is on the forwards facing surface around the drum opening. The snap fit connector comprises at least one first engaging element, for example a hook, and at least one corresponding second engaging element, for example a ledge. The at least one first and second engaging elements are distributed along the surface of the first and second components respectively. When the user closes the front door of the laundry appliance, the first engaging elements and the corresponding second engaging elements are mated and therefore the front door is locked.

The present invention, on the other hand, addresses the situation where the structure of a handle assembly for a front door of a laundry treatment appliance such as a laundry washing and/or drying machine is simplified to provide durability and ease of installation.

To this end, the present invention provides an effective system in which the handle assembly is assembled by attachment of a handle body with a handle edge piece and handle inner piece via tabs and corresponding slots.

The present invention provides a front door for a laundry treatment appliance comprising a handle assembly as provided by the characterizing features defined in Claim 1.

Primary object of the present invention is to provide a front door comprising a handle assembly for a laundry treatment appliance such as a laundry washing and/or drying machine whereby the durability of the door handle assembly is improved and its installation is simplified.

The present invention proposes a laundry treatment appliance with front door handle assembly having a handle body, handle edge piece and handle inner piece. Flexible inner tabs of the handle inner piece keep inner hooks of the handle body in inner slots of the handle inner piece. Flexible peripheral edge tabs of the handle body keep peripheral edge hooks of the handle edge piece in peripheral edge slots of the handle body.

The drawings are not meant to delimit the scope of protection as identified in the Claims, nor should they be referred to alone in an effort to interpret the scope identified in said Claims without recourse to the technical disclosure in the description of the present invention. The drawings are only exemplary in the sense that they do not necessarily reflect the actual dimensions and relative proportions of the respective components of the system.

Fig. 1 demonstrates a perspective view of a front door comprising a handle assembly according to the present invention.

Fig. 2 demonstrates a perspective view of a front door handle assembly according to the present invention.

Fig. 3 demonstrates an exploded front view of a front door handle assembly according to the present invention.

Fig. 4 demonstrates an exploded back view of a front door handle assembly according to the present invention.

Fig. 5 demonstrates a back view of a front door handle assembly according to the present invention.

Fig. 6 demonstrates a sectional view of a handle assembly taken along line A-A of Figure 5 according to the present invention.

The following numerals are assigned to different part number used in the detailed description:

Front door
Front door frame
Front door glass
Handle assembly
Handle body
Handle edge piece
Handle inner piece
Central edge tab
Central edge hook
Central edge slot
Peripheral edge tab
Peripheral edge hook
Peripheral edge slot
Flexible peripheral edge tab
Edge support flange
Inner support flange
Flexible inner tab
Inner hook
Inner slot

The present invention proposes a front door (1) for a laundry treatment appliance such as a laundry washing and/or drying machine. The front door (1) covers the access opening of a laundry treatment appliance through which laundry can be loaded into or unloaded from the drum of said laundry treatment appliance. The front door (1) comprises a front door frame (2), a front door glass (3) and a handle assembly (4) (Figure 1). The handle assembly (4) ensures that the front door (1) is secured in the closed position, as well as it allows the user to open the front door (1) by rotating the handle.

The handle assembly (4) comprises a handle body (5), a handle edge piece (6) and a handle inner piece (7) (Figure 2). The small number of components of the handle assembly (4) advantageously provides ease of installation during production. It also imparts durability to the handle assembly (4) such that the handle remains stable during continuous cycle of rotation by the user and does not disintegrate. Additionally, it is configured to be assembled to look and form a durable unitary piece.

Figures 3 and 4 illustrate the front and back views of the unassembled handle assembly (4). The handle edge piece (6) is attachable to the handle body (5) by inserting a central edge tab (8), preferably provided on the handle edge piece (6), into a corresponding central edge slot (10), preferably provided on the handle body (5), and by inserting at least one peripheral edge tab (11) into corresponding at least one peripheral edge slot (13). While inserting the peripheral edge tabs (11) into corresponding peripheral edge slots (13), flexible peripheral edge tabs (14) rotate away from the plane of the handle body (5) due to peripheral edge hooks (12). After peripheral edge hooks (12) reach their position in peripheral edge slots (13), the peripheral edge hooks (12) are kept in place by the flexible peripheral edge tabs (14). Additionally, the handle edge piece (6) is fixed in position via a plurality of uniformly distributed edge support flanges (15) on the edge-facing side of the handle body (5). In this manner, the handle edge piece (6) and the handle body (5) are uniformly and fixedly secured in attached position.

According to the embodiment illustrated in the attached figures, the peripheral edge tabs (11) are provided on the handle edge piece (6), preferably two peripheral edge tabs (11), and the peripheral edge hooks (12) are provided each on a corresponding peripheral edge tabs (11), while the peripheral edge slots (13) and the flexible peripheral edge tabs (14) are provided on the handle body (5).

The handle inner piece (7) is attachable to the handle body (5) by inserting at least one inner hook (18) into corresponding at least one inner slot (19).

While inserting the inner hooks (18) into the corresponding inner slots (19), flexible inner tabs (17) rotate away from the plane of handle body (5) due to the inner hooks (18). After the inner hooks (18) reach their position in the inner slots (19), the inner hooks (18) are kept in place by the flexible inner tabs (17). Additionally, the handle inner piece (7) is fixed in position via a plurality of uniformly distributed inner support flanges (16) on the inner-facing side of the handle body (5) (Figures 5 and 6).

According to the embodiment shown in the attached figures, the inner hooks (18) are provided on the handle body (5) and the inner slots (19) and the flexible inner tabs (17) are provided on the handle inner piece (7).

According to an aspect of the present invention, the two peripheral edge hooks (12) extend along respective longitudinal axes, parallel to the plane of handle body (5), which form a wide angle, i.e. an obtuse angle, at an imaginary point where the two axes intersect. In other words, the two peripheral edge hooks (12) face away from a central point of the handle body (5).

In a nutshell, the present invention proposes a laundry treatment appliance comprising a rotary drum in which laundry is placeable and a front door (1) allowing access into the rotary drum for loading or unloading laundry through an access opening, said front door (2) being openable in the manner that a handle assembly (4) operates to lock or unlock said front door (1).

The handle assembly (4) comprises a handle body (5), a handle edge piece (6) and a handle inner piece (7).

In an embodiment of the present invention, the handle edge piece (6) comprises a central edge tab (8) and at least one peripheral edge tab (11) and the handle body (5) comprises a corresponding central edge slot (10) and at least one peripheral edge slot (13) such that the handle edge piece (6) is attachable to the handle body (5) by insertion of the central edge tab (8) and at least one peripheral edge tab (11) respectively into the corresponding central edge slot (10) and the corresponding at least one peripheral edge slot (13).

In a further embodiment of the present invention, the handle body (5) comprises at least one inner hook (18) and the handle inner piece (7) comprises corresponding at least one inner slot (19) such that the handle inner piece (7) is attachable to the handle body (5) by insertion of said at least one inner hook (18) into corresponding at least one inner slot (19).

In a further embodiment of the present invention, the handle inner piece (7) comprises flexible inner tabs (17) whereby said inner hooks (18) are kept in said inner slots (19) by said flexible inner tabs (17).

In a further embodiment of the present invention, the handle body (5) comprises flexible peripheral edge tabs (14) whereby the peripheral edge hooks (12) are kept in the peripheral edge slots (13) by the flexible peripheral edge tabs (14).

Flexible inner tabs (17) keeping the inner hooks (18) in the inner slots (19) and flexible peripheral edge tabs (14) keeping the peripheral edge hooks (12) in the peripheral edge slots (13) advantageously provide that the handle body (5), the handle edge piece (6) and the handle inner piece (7) are assembled and disassembled in a flexibly practical manner by sliding respective pieces one over the other. The assembled structure also maintains its fixedly attached configuration despite the use of flexible members because when assembled, interengaged elements are not allowed displacement along the plane of the handle assembly (4).

In a further embodiment of the present invention, the flexible inner tabs (17) are at least partially flexibly rotatable in a direction away from the plane of handle body (5) during assembling of the handle body (5) with the handle inner piece (7) whereby inner hooks (18) are inserted into corresponding inner slots (19).

In a further embodiment of the present invention, the handle body (5) comprises a plurality of edge support flanges (15) on its edge-facing side whereby the handle edge piece (6) and the handle body (5) are uniformly secured in assembled position.

In a further embodiment of the present invention, the handle body (5) comprises a plurality of inner support flanges (16) on its inner-facing side whereby the handle inner piece (7) and the handle body (5) are uniformly secured in assembled position.

In a further embodiment of the present invention, the longitudinal axes, along which the two peripheral edge hooks (12) extend, form a wide angle at a point where the two axes intersect.

Therefore, a front door (1) comprising a handle assembly (4) is proposed such that the durability of the door handle assembly is improved and its installation is simplified. Handle assembly (4) is assembled by attachment of a handle body (5) with a handle edge piece (6) and handle inner piece (7) via tabs (8, 11, 17), hooks (9, 12, 18) and corresponding slots (10, 13, 19). In this manner, the handle remains stable during continuous cycle of rotation by the user and does not disintegrate. Additionally, it is assembled to look and form a durable unitary piece.

Claims

A laundry treatment appliance comprising a rotary drum in which laundry is placeable and a front door (1) allowing access into the rotary drum for loading or unloading laundry through an access opening and having a handle assembly (4) operateable to lock or unlock said front door (1) characterized in that,

the handle assembly (4) comprises a handle body (5), a handle edge piece (6) and a handle inner piece (7),

the handle edge piece (6) comprises a central edge tab (8) and at least one peripheral edge tab (11) and the handle body (5) comprises corresponding central edge slot (10) and at least one peripheral edge slot (13) such that the handle edge piece (6) is attachable to the handle body (5) by insertion of the central edge tab (8) and of at least one peripheral edge tab (11) into corresponding central edge slot (10) and at least one peripheral edge slot (13),

the handle body (5) comprises at least one inner hook (18) and said handle inner piece (7) comprises corresponding at least one inner slot (19) such that the handle inner piece (7) is attachable to the handle body (5) by insertion of said at least one inner hook (18) into corresponding at least one inner slot (19),

the handle inner piece (7) comprises flexible inner tabs (17) whereby the inner hooks (18) are kept in the inner slots (19) by the flexible inner tabs (17) and,

the handle body (5) comprises flexible peripheral edge tabs (14) whereby peripheral edge hooks (12) are kept in the peripheral edge slots (13) by the flexible peripheral edge tabs (14).
A laundry treatment appliance as in Claim 1, characterized in that said flexible inner tabs (17) are at least partially flexibly rotatable in a direction away from the plane of the handle body (5) during assembling of the handle body (5) with the handle inner piece (7), whereby inner hooks (18) are inserted into corresponding inner slots (19).
A laundry treatment appliance as in Claim 1, characterized in that said handle body (5) comprises a plurality of edge support flanges (15) on the edge-facing side of said handle body (5) whereby the handle edge piece (6) and the handle body (5) are uniformly secured in assembled position.
A laundry treatment appliance as in Claim 1, characterized in that said handle body (5) comprises a plurality of inner support flanges (16) on the inner-facing side of said handle body (5) whereby the handle inner piece (7) and the handle body (5) are uniformly secured in assembled position.
A laundry treatment appliance as in Claim 1, characterized in that the longitudinal axes along which the two peripheral edge hooks (12) extend form a wide angle at a point where the two axes intersect.