EP3899126B1 - A laundry washing and/or drying machine comprising a hinge group - Google Patents
A laundry washing and/or drying machine comprising a hinge group Download PDFInfo
- Publication number
- EP3899126B1 EP3899126B1 EP19816278.6A EP19816278A EP3899126B1 EP 3899126 B1 EP3899126 B1 EP 3899126B1 EP 19816278 A EP19816278 A EP 19816278A EP 3899126 B1 EP3899126 B1 EP 3899126B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- bearing
- hinge
- hinge arm
- drying machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001035 drying Methods 0.000 title claims description 22
- 238000010412 laundry washing Methods 0.000 title claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 239000004952 Polyamide Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- -1 polyoxymethylene Polymers 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 230000005484 gravity Effects 0.000 description 11
- 238000005406 washing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
Definitions
- the present invention relates to a laundry washing and/or drying machine comprising a hinge group.
- the drum wherein the laundry is subjected to washing and/or drying process is generally accessed by a door which is opened by being rotated to the right or left around the vertical direction.
- the rotational movement of the door is usually provided by a hinge group.
- the center of gravity shifts to a location not predetermined relative to the hinge group over time due to the weight of the door.
- the door will close by itself without applying any force on the door from outside. This causes the door to close by itself while the user loads/unloads the drum, causing the user to reopen the door and thus user dissatisfaction.
- the aim of the present invention is the realization of a washing and/or drying machine wherein the open door is prevented from closing only by its own weight without applying any external force.
- the washing and/or drying machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a hinge group as well as at least two bearings each bearing therein the relevant shaft on the hinge arm extending outwards from the hinge body mounted to the machine body and which are fixed to a housing on the door frame and which are connected to the hinge arm such that it is required to apply a threshold force of a predetermined value on at least one thereof so as to rotate around the shaft axis.
- the threshold force which enables at least one bearing to perform rotational movement around the shaft axis has a value larger than the value of the force resulting from the momentum which is generated by at least the position of the center of gravity of the door relative to the hinge arm and which causes the door to close by itself without applying any external force onto the door.
- the door is prevented from unintentionally closing by preventing the door from rotating around the shaft axis of the bearing due to its own weight without any external force being applied onto the door when a door with a center of gravity which has shifted in any manner is open.
- the bearing comprises at least one protrusion
- the hinge arm comprises at least one recess suitable for engaging with said protrusion.
- the bearing engages with the corresponding part of the hinge arm as the projection enters the recess.
- the bearing comprises at least one recess
- the hinge arm comprises at least one protrusion suitable for engaging with said recess.
- the bearing engages with the corresponding part of the hinge arm as the projection enters the recess.
- each of the walls defining the housing which is arranged on the frame and which receives the bearing comprises at least one beam on the surface thereof facing the bearing, and the bearing comprises at least one channel at the end thereof not connected to the hinge which receives said beam.
- the bearing is fixed to the door frame as said beam enters the channel.
- the frame comprises a first cover and a second cover which is detachably connected to the first cover.
- the housing and the hinge group elements which are housed in and around the housing are positioned on the first cover and are not visible from the outside as the second cover is connected to the first cover. Thus, an aesthetic appearance is achieved.
- At least the hinge arm is produced from a wear-resistant material, such as aluminum injection material or glass-filled polyamide material.
- a wear-resistant material such as aluminum injection material or glass-filled polyamide material.
- the bearing is produced from a wear-resistant material such as polyoxymethylene.
- a wear-resistant material such as polyoxymethylene.
- the bearing is prevented from rotating around the shaft axis on the hinge arm unless a force with a certain threshold is applied onto the bearing.
- a force with a certain threshold is applied onto the bearing.
- the laundry washing and/or drying machine (1) comprises a body (3) having a drum (not shown in the figures) wherein the laundry to be treated is loaded and an opening (2) providing access to the drum; at least one door (5) which provides the opening/closing the opening (2) and which has and a frame (4); at least one housing (7) which is arranged on the frame (4) and which is defined by at least two walls (6); and at least one hinge group (12) having at least one hinge body (8) which is fixed onto the body (3), at least one hinge arm (9) which is fixed to the hinge body (8) from one end and which extends outwards from the hinge body (8), at least two shafts (10) which extend in opposite directions from the ends of the hinge arm (9) which are not connected to the hinge body (8), and at least two bearings (11) each connected to the hinge arm (9) from one end so as to house a respective shaft (10) and to rotate around the shaft (10) axis and which are placed into the housing (7) so as to be fixed to the frame (4).
- a threshold force of a certain amplitude has to be applied onto at least one thereof so as to rotate around the axis of the shaft (10).
- the bearing (11) comprises at least one protrusion (13), and the hinge arm (9) comprises at least one recess (14) suitable for engaging with said protrusion (13).
- the bearing (11) is connected to the hinge arm (9) as the protrusion (13) is inserted into the recess (14).
- the bearing (11) comprises at least one recess (14), and the hinge arm (9) comprises at least one protrusion (13) suitable for engaging with said recess (14).
- the bearing (11) is connected to the hinge arm (9) as the protrusion (13) is inserted into the recess (14).
- the wall (6) comprises at least one beam (15) extending outwards
- the bearing (11) comprises at least one channel (16) at the end not connected to the hinge arm (9) which receives said beam (15).
- the bearing (11), and hence a part of the hinge group (12) is fixed to the frame (4), and the relative speed thereof relative to the door (5) during the movement of the door (5) becomes zero and the door (5) and the bearing (11) rotate as a single piece.
- the frame (4) comprises a first cover (17) and a second cover (18) which is detachably connected to the first cover (17).
- the housing (7) arranged on the frame (4) is positioned on the first cover (17), and as the second cover (18) is connected to the first cover (17) such that the housing on the first cover (17), the bearings (11) in the housing (7), the shaft (10) and a part of the hinge arm (9) are not visible from the outside, thus providing an aesthetic advantage.
- At least the hinge arm (9) is produced from a wear-resistant material, such as aluminum injection material or glass-filled polyamide material.
- a wear-resistant material such as aluminum injection material or glass-filled polyamide material.
- the bearing (11) is produced from a polymer-based wear-resistant material such as polyoxymethylene.
- a polymer-based wear-resistant material such as polyoxymethylene.
- the bearing ((11) is prevented from rotating around the shaft (10) axis on the hinge arm (9) unless a force with a certain threshold is applied onto the bearing (11).
- a force with a certain threshold is applied onto the bearing (11).
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Pivots And Pivotal Connections (AREA)
Description
- The present invention relates to a laundry washing and/or drying machine comprising a hinge group.
- In washing and/or drying machines, the drum wherein the laundry is subjected to washing and/or drying process is generally accessed by a door which is opened by being rotated to the right or left around the vertical direction. The rotational movement of the door is usually provided by a hinge group. However, from time to time due to an error in the mounting of the door to the machine body and/or after the door is mounted on the machine body, the center of gravity shifts to a location not predetermined relative to the hinge group over time due to the weight of the door. In such a case, when the door is open, since the center of gravity is at the wrong location, the door will close by itself without applying any force on the door from outside. This causes the door to close by itself while the user loads/unloads the drum, causing the user to reopen the door and thus user dissatisfaction.
- In the state of the art Turkish Patent Document No.
TR2016/16447 WO2011014018 , a laundry machine is disclosed, having a door positioning unit for positioning the door away from the cabinet. In the state of the art Korean Patent Document NoKR20090115004 - The aim of the present invention is the realization of a washing and/or drying machine wherein the open door is prevented from closing only by its own weight without applying any external force.
- The washing and/or drying machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a hinge group as well as at least two bearings each bearing therein the relevant shaft on the hinge arm extending outwards from the hinge body mounted to the machine body and which are fixed to a housing on the door frame and which are connected to the hinge arm such that it is required to apply a threshold force of a predetermined value on at least one thereof so as to rotate around the shaft axis. According to the present invention, the threshold force which enables at least one bearing to perform rotational movement around the shaft axis has a value larger than the value of the force resulting from the momentum which is generated by at least the position of the center of gravity of the door relative to the hinge arm and which causes the door to close by itself without applying any external force onto the door. The door is prevented from unintentionally closing by preventing the door from rotating around the shaft axis of the bearing due to its own weight without any external force being applied onto the door when a door with a center of gravity which has shifted in any manner is open.
- According to the present invention, the bearing comprises at least one protrusion, and the hinge arm comprises at least one recess suitable for engaging with said protrusion. In this embodiment, the bearing engages with the corresponding part of the hinge arm as the projection enters the recess. Thus, when the door is desired to be opened or closed, the force applied on the bearing must be at least large enough to release the protrusion from the recess. Consequently, the force applied due to the weight of the door without applying any external force on the bearing is not sufficient to release the protrusion from the recess, and thus the door is prevented from unintentionally closing by preventing the bearing from rotating around the shaft axis.
- In an alternative of the present invention, the bearing comprises at least one recess, and the hinge arm comprises at least one protrusion suitable for engaging with said recess. In this embodiment, the bearing engages with the corresponding part of the hinge arm as the projection enters the recess. Thus, when the door is desired to be opened or closed, the force applied on the bearing must be at least large enough to release the protrusion from the recess. Consequently, the force applied due to the weight of the door without applying any external force on the bearing is not sufficient to release the protrusion from the recess, and thus the door is prevented from unintentionally closing by preventing the bearing from rotating around the shaft axis.
- According to the present invention, each of the walls defining the housing which is arranged on the frame and which receives the bearing comprises at least one beam on the surface thereof facing the bearing, and the bearing comprises at least one channel at the end thereof not connected to the hinge which receives said beam. In this embodiment, the bearing is fixed to the door frame as said beam enters the channel. Thus, it is provided that the bearing and the door rotate together.
- In an embodiment of the present invention, the frame comprises a first cover and a second cover which is detachably connected to the first cover. In this embodiment, the housing and the hinge group elements which are housed in and around the housing are positioned on the first cover and are not visible from the outside as the second cover is connected to the first cover. Thus, an aesthetic appearance is achieved.
- In an embodiment of the present invention, at least the hinge arm is produced from a wear-resistant material, such as aluminum injection material or glass-filled polyamide material. Thus, the hinge arm is prevented from wearing down during the rotation of the bearing on the hinge arm around the shaft axis while the door is being opened/closed or is enabled to wear down at a minimum, providing a long life.
- In an embodiment of the present invention, the bearing is produced from a wear-resistant material such as polyoxymethylene. Thus, the bearing is prevented from wearing down during the rotation of the bearing on the hinge arm around the shaft axis while the door is being opened/closed or is enabled to wear down at a minimum, providing a long life.
- By means of the present invention, the bearing is prevented from rotating around the shaft axis on the hinge arm unless a force with a certain threshold is applied onto the bearing. Thus, for example, when a door is in the open position, the center of gravity of which is at the wrong position with respect to the hinge group due to an error after the first assembly or during the first assembly in any way, the effect of a force caused by only the weight of the door does not exceed the threshold force value which allows the bearing to rotate around the shaft axis. Therefore, the bearing is prevented from rotating around the shaft axis due to only the weight of the door, thus preventing the door from unintentionally closing.
- The laundry washing and/or drying machine realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
-
Figure 1 - is the schematic perspective view of the laundry washing and/or drying machine of the present invention. -
Figure 2 - is the front view of the door of the laundry washing and/or drying machine of the present invention. -
Figure 3 - is the enlarged view of detail A inFigure 2 . -
Figure 4 - is the partial perspective view of the door of the laundry washing and/or drying machine of the present invention. -
Figure 5 - is the enlarged view of detail B inFigure 3 . -
Figure 6 - is the enlarged view of detail C inFigure 4 . -
Figure 7 - is the exploded view of the door of the laundry washing and/or drying machine of the present invention in an embodiment of the present invention. - The elements illustrated in the figures are numbered as follows:
- 1. Laundry washing and/or drying machine
- 2. Opening
- 3. Body
- 4. Frame
- 5. Door
- 6. Wall
- 7. Housing
- 8. Hinge body
- 9. Hinge arm
- 10. Shaft
- 11. Bearing
- 12. Hinge group
- 13. Protrusion
- 14. Recess
- 15. Beam
- 16. Channel
- 17. First cover
- 18. Second cover
- The laundry washing and/or drying machine (1) comprises a body (3) having a drum (not shown in the figures) wherein the laundry to be treated is loaded and an opening (2) providing access to the drum; at least one door (5) which provides the opening/closing the opening (2) and which has and a frame (4); at least one housing (7) which is arranged on the frame (4) and which is defined by at least two walls (6); and at least one hinge group (12) having at least one hinge body (8) which is fixed onto the body (3), at least one hinge arm (9) which is fixed to the hinge body (8) from one end and which extends outwards from the hinge body (8), at least two shafts (10) which extend in opposite directions from the ends of the hinge arm (9) which are not connected to the hinge body (8), and at least two bearings (11) each connected to the hinge arm (9) from one end so as to house a respective shaft (10) and to rotate around the shaft (10) axis and which are placed into the housing (7) so as to be fixed to the frame (4). In the laundry washing and/or drying machine (1), when the door (5) which is closed is desired to be opened to provide access to the drum, a pulling force is applied onto the door (5), and the bearings (11) fixed onto the frame (4) rotate around the shaft (10) axis on the hinge arm (9), thus the door (5) is opened. In the laundry washing and/or drying machine (1), when the door (5) is open, at least most of the weight of the door (5) is compensated by the shafts (10) and the bearings (11). In the laundry washing and/or drying machine (1), when the door (5) which is open is desired to be closed, a pushing force is applied onto the door (5), and the bearings (11) fixed onto the frame (4) rotate around the shaft (10) axis on the hinge arm (9) in a direction opposite to the direction of the rotational movement carried out while the door (5) is being opened, thus the door (5) is closed.
- In the washing and/or drying machine (1) of the present invention, at least one of the bearings (11) connected to the hinge arm (9) such that a threshold force of a certain amplitude has to be applied onto at least one thereof so as to rotate around the axis of the shaft (10). Thus, when a door (5) with a shifted center of gravity is open, the effect of the momentum caused by the shifting of the center of gravity of the door (5) without applying any external force to the door (5) cannot exceed the threshold force allowing the bearing (11) to rotate around the shaft (10) axis, and the door (5) is prevented from unintentionally closing by preventing the bearing (11) from rotating around the shaft (10) axis.
- According to the present invention, the bearing (11) comprises at least one protrusion (13), and the hinge arm (9) comprises at least one recess (14) suitable for engaging with said protrusion (13). In this embodiment, the bearing (11) is connected to the hinge arm (9) as the protrusion (13) is inserted into the recess (14). Thus, when the door (5) is desired to be opened or closed, the force applied on the bearing (11) must be at least large enough to release the protrusion (13) from the recess (14). Consequently, the effect of the momentum to be generated due to the shifting of the center of gravity of the door (5) cannot exceed a force large enough to release the protrusion (13) from the recess (14), and thus, the door (5) is prevented from unintentionally closing by preventing the bearing (11) from rotating around the shaft (10) axis.
- In an alternative of the present invention, the bearing (11) comprises at least one recess (14), and the hinge arm (9) comprises at least one protrusion (13) suitable for engaging with said recess (14). In this embodiment, the bearing (11) is connected to the hinge arm (9) as the protrusion (13) is inserted into the recess (14). Thus, when the door (5) is desired to be opened or closed, the force applied on the bearing (11) must be at least large enough to release the protrusion (13) from the recess (14). Consequently, the effect of the momentum to be generated due to the shifting of the center of gravity of the door (5) cannot exceed a force large enough to release the protrusion (13) from the recess (14), and thus, the door (5) is prevented from unintentionally closing by preventing the bearing (11) from rotating around the shaft (10) axis.
- According to the present invention, the wall (6) comprises at least one beam (15) extending outwards, and the bearing (11) comprises at least one channel (16) at the end not connected to the hinge arm (9) which receives said beam (15). In this embodiment, when the beam (15) enters the channel (16), the bearing (11), and hence a part of the hinge group (12), is fixed to the frame (4), and the relative speed thereof relative to the door (5) during the movement of the door (5) becomes zero and the door (5) and the bearing (11) rotate as a single piece.
- In an embodiment of the present invention, the frame (4) comprises a first cover (17) and a second cover (18) which is detachably connected to the first cover (17). In this embodiment, the housing (7) arranged on the frame (4) is positioned on the first cover (17), and as the second cover (18) is connected to the first cover (17) such that the housing on the first cover (17), the bearings (11) in the housing (7), the shaft (10) and a part of the hinge arm (9) are not visible from the outside, thus providing an aesthetic advantage.
- In an embodiment of the present invention, at least the hinge arm (9) is produced from a wear-resistant material, such as aluminum injection material or glass-filled polyamide material. Thus, since said aluminum injection or glass-filled polyamide material is wear-resistant, it is provided that the wear caused by the rotational movement of the bearing (11) at the point where the bearing (11) is connected to the hinge arm (9) is minimized. Thus, the hinge arm (9) is enabled to be used without being damaged for a long time.
- In an embodiment of the present invention, the bearing (11) is produced from a polymer-based wear-resistant material such as polyoxymethylene. Thus, by means of said wear-resistant polymer-based material, it is provided that the wear on the bearing (11) caused by the rotational movement of the bearing (11) at the point where the bearing (11) is connected to the hinge arm (9) is minimized. Thus, the bearing (11) is enabled to be used without being damaged for a long time.
- By means of the present invention, the bearing ((11) is prevented from rotating around the shaft (10) axis on the hinge arm (9) unless a force with a certain threshold is applied onto the bearing (11). Thus, for example, when a door (5) is in the open position, the center of gravity of which shifts due to an error after the first assembly or during the first assembly in any way, the effect of a force caused by only the shifting of the center of gravity of the door (5) does not exceed the threshold force value which allows the bearing (11) to rotate around the shaft (10) axis. Therefore, the bearing (11) is prevented from rotating around the shaft (10) axis due to only the weight of the door (5), thus preventing the door (5) from unintentionally closing.
Claims (4)
- A laundry washing and/or drying machine (1) comprising a body (3) having a drum wherein the laundry to be treated is loaded and an opening (2) providing access to the drum; at least one door (5) which provides the opening/closing the opening (2) and which has and a frame (4); at least one housing (7) which is arranged on the frame (4) and which is defined by at least two walls (6); and at least one hinge group (12) having at least one hinge body (8) which is fixed onto the body (3), at least one hinge arm (9) which is fixed to the hinge body (8) from one end and which extends outwards from the hinge body (8), at least two shafts (10) which extend in opposite directions from the ends of the hinge arm (9) which are not connected to the hinge body (8), and at least two bearings (11) each connected to the hinge arm (9) from one end so as to house a respective shaft (10) and to rotate around the shaft (10) axis and which are placed into the housing (7) so as to be fixed to the frame (4), the bearings (11) connected to the hinge arm (9) such that a threshold force of a certain amplitude has to be applied onto at least one thereof so as to rotate around the axis of the shaft (10) characterized by the bearing (11) comprising at least one protrusion (13) or at least one recess (14) and the hinge arm (9) comprising at least one recess (14) suitable for engaging with said protrusion (13) or at least one protrusion (13) suitable for engaging with said recess (14) and each of the walls (6) comprising at least one beam (15) extending outwards, and the bearing (11) comprising at least one channel (16) at the end not connected to the hinge arm (9) which receives said beam (15).
- A laundry washing and/or drying machine (1) as in claim 1, characterized by the frame (4) comprising a first cover (17) and a second cover (18) which is detachably connected to the first cover (17).
- A laundry washing and/or drying machine (1) as in any one of the above claims, characterized by the hinge arm (9) which is produced from a wear-resistant material, such as aluminum injection material or glass-filled polyamide material.
- A laundry washing and/or drying machine (1) as in any one of the above claims, characterized by the bearing (11) which is produced from a wear-resistant polymer-based material such as polyoxymethylene.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR2018/19730A TR201819730A2 (en) | 2018-12-18 | 2018-12-18 | A WASHING MACHINE WITH HINGE GROUP |
PCT/EP2019/083570 WO2020126491A1 (en) | 2018-12-18 | 2019-12-04 | A laundry washing and/or drying machine comprising a hinge group |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3899126A1 EP3899126A1 (en) | 2021-10-27 |
EP3899126B1 true EP3899126B1 (en) | 2024-02-07 |
Family
ID=68806754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19816278.6A Active EP3899126B1 (en) | 2018-12-18 | 2019-12-04 | A laundry washing and/or drying machine comprising a hinge group |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3899126B1 (en) |
PL (1) | PL3899126T3 (en) |
TR (1) | TR201819730A2 (en) |
WO (1) | WO2020126491A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4914781A (en) * | 1988-12-27 | 1990-04-10 | Maytag Corporation | Hinge assembly for a closure member |
KR101443636B1 (en) * | 2008-04-30 | 2014-09-23 | 엘지전자 주식회사 | Door of drum type washing machine |
EP2459793B1 (en) * | 2009-07-30 | 2018-01-17 | LG Electronics Inc. | Washing machine |
KR102148646B1 (en) * | 2013-03-21 | 2020-08-28 | 엘지전자 주식회사 | Laundry Treating Apparatus |
CN107059357B (en) * | 2017-06-16 | 2023-05-12 | 爱柯迪富乐精密科技(太仓)有限公司 | Rotary hinge mechanism for drum washing machine door |
-
2018
- 2018-12-18 TR TR2018/19730A patent/TR201819730A2/en unknown
-
2019
- 2019-12-04 PL PL19816278.6T patent/PL3899126T3/en unknown
- 2019-12-04 EP EP19816278.6A patent/EP3899126B1/en active Active
- 2019-12-04 WO PCT/EP2019/083570 patent/WO2020126491A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3899126A1 (en) | 2021-10-27 |
PL3899126T3 (en) | 2024-06-17 |
WO2020126491A1 (en) | 2020-06-25 |
TR201819730A2 (en) | 2020-07-21 |
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