Patent Application
20200378165
The present embodiments relate to a hinge mechanism, a compartment door assembly with such a hinge mechanism and a cabinet or refrigerator with such a hinge mechanism and/or compartment door assembly. Finally, the present embodiments also relate to a recreational vehicle provided with at least one of the above devices.
In general, known hinge mechanisms for supporting a door to a housing of a cabinet or refrigerator, particularly provided for a recreational vehicle, in order to be able to pivot the about two distinct pivoting axes with respect to the housing have a quite complex structure. An example for an according a hinge mechanism is described in EP 3 287 722 A1. Although such complex implementations for corresponding hinge mechanisms has proven their functionality quite well, there is still a demand in improving them further with regard to reduced complexity and thus reliability, production costs as well as maintenance expense. In particular, there is the demand for providing an implementation of a corresponding hinge mechanism having a quite simple structure.
In particular, the present embodiments is directed to provide a solution for the above problems with regard to compartments and/or compartment door assemblies in cabinets or refrigerators. Such compartments often are provided in cabinets or refrigerators resulting from dividing the interior space of the cabinets or refrigerators in various sections. An example for a corresponding compartment would be a freezer in a refrigerator. Often, such compartments, are provided with separate compartment doors in addition to the main door of the cabinet or refrigerator. These compartment doors in particular are positioned behind the main door, when the main door is closed, such that the compartment door cannot be opened in this operation state. Accordingly, such compartment doors for example have not to be provided with an own locking arrangement preventing an autonomous opening of the compartment door when the main door is closed. In addition to this difference, other spatial restrictions apply for such compartment door assemblies.
Accordingly, the problem to be solved is to provide a hinge mechanism having a quite simple but reliable structure and in particular being provided for a compartment door assembly.
Besides, there is a demand for a corresponding compartment door assembly and a cabinet or refrigerator having a simplified structural configuration. Finally, there is a demand for recreational vehicles benefiting from the advantages achieved by such devices.
The above problems are solved by the subject matter of the accompanying independent claims. Further advantageous features for the corresponding subject matters are provided in the accompanying dependent claims.
According to a first aspect, a hinge mechanism for supporting a compartment door pivotally to a frame and/or a housing of a cabinet or a refrigerator comprises
at least two receiving sections and at least two engaging sections. This configuration in particular is provided for a recreational vehicle like a motor home or caravan. The hinge mechanism is characterized in that each of the receiving sections is configured to be coupled to one of the compartment door and the frame respectively the housing of the cabinet or refrigerator. Furthermore, each of the engaging sections is configured to be coupled to the other of the compartment door and the frame respectively the housing. Each of the engaging sections is configured to be engaged with and disengaged from one of the receiving sections. In the engaged state each engaging section is pivotable with respect to the corresponding receiving section about a corresponding pivoting axis.
This configuration allows to move the compartment door between a closed state of the compartment door to two distinct opened states of the compartment door, when a main door of the cabinet or refrigerator, respectively, is in the opened state. In a first opened state, the compartment door is pivoted with respect to the frame or housing about one pivoting axis extending along the left side of the frame or housing and being defined by at least one of the engaging sections. In a second opened state, the compartment door is pivoted with respect to the frame or housing about another pivoting axis extending along the right side of the frame or housing and being defined by at least the other one of the engaging sections. In contrast to hinge mechanisms for main doors of a cabinet or refrigerator, there is no need for providing a locking arrangement for the hinge mechanism of the compartment door assembly as in the closed and in particular locked state of the main door, the compartment door cannot be opened anyway. This configuration is very simple and thus reliable and cheap.
The hinge mechanism comprises at least four receiving sections and at least four engaging sections. In the first opened state, the compartment door is pivoted with respect to the frame or housing about one pivoting axis extending along the left side of the frame or housing and being defined by at least two of the engaging sections. In the second opened state, the compartment door is pivoted with respect to the frame or housing about the other pivoting axis extending along the right side of the frame or housing and being defined by at least the two other of the engaging sections. Then, each of the pivoting axes extends through at least two engaging sections. Hence, this allows for a stable and reliable pivoting operation of the compartment door.
According to one embodiment each of the engaging sections has a pin portion and each of the receiving section has a receiving portion configured to receive the pin portion of the respective engaging section along a direction perpendicular with respect to its pivoting axis.
Such a pin engagement configuration is quite simple resulting in a highly reliable and cheap implementation for the hinge mechanism.
Further, according to one embodiment, the pin portions are provided as longitudinal members having a non-rotational symmetric configuration with respect to its pivoting axis along the longitudinal direction of the pin portion. The pin portion is formed such that the engaging section can be pivoted in the engaged state with the corresponding receiving section about the respective pivoting axis between a locked state and an unlocked state. In the unlocked state the respective pin portion can be moved along the direction perpendicular with respect to the respective pivoting axis to be disengaged from the corresponding receiving section. In the locked state, the respective pin portion only can be rotated about its pivoting axis with respect to the corresponding receiving section.
For example, the pin portions are provided with a nearly tubular shape having two flattened surfaces on opposite sides of the pin portion seen perpendicular with respect to the longitudinal axis of the pin portion. This structural implementation is very suitable for realizing the above described functionality allowing to engage and disengage the receiving sections with/from the engaging sections reliably permitting the pivotal movement of the engaging sections with respect to the respective receiving sections in the engaged state.
According to one embodiment, each of the engaging sections forms with the corresponding one of the receiving sections an open bracket hinge.
“Open bracket hinge” in particular means that the receiving section has a c-shaped member and that the engaging section is formed such that the engaging section can be engaged with and disengaged from the receiving section through the opening in the receiving section. In particular, the engaging section is formed, as for example described above, such that the engaging section just can be engaged with and disengaged from the receiving section in specific rotational orientations between the respective engaging section and the corresponding receiving section. Such a configuration is quite simple and practical.
According to some embodiments, the receiving sections at least partially are made of an elastic material. Examples for such elastic materials are synthetic materials, rubber or metals. In addition thereto or alternatively, the receiving sections are provided with biasing members biasing the receiving sections from a configuration, in which the engaging sections can be freely engaged with and disengaged from the corresponding receiving sections towards a configuration, in which the engaging sections are restrained within the corresponding receiving sections.
These features enable various different configurations allowing an engaging and disengaging of the engaging sections with the receiving sections. In these configurations, there is no need for pivoting the engaging sections into a specific rotational orientation with respect to the receiving sections to be engaged with and disengaged from the corresponding receiving section. In contrast thereto, only a specific amount of pulling force, resulting in a widening of the opening provided in the receiving sections, has to be applied to engage or disengage the respective engaging sections with/from the receiving sections. Such a configuration is highly reliable and flexible.
According to some embodiments, the hinge mechanism comprises at least four receiving sections and at least four engaging sections, wherein at least two receiving sections are provided on a common coupling section such that the pivoting axes defined by the respective receiving sections correspond with each other or at least are in parallel with each other but shifted transversally with respect to each other and/or at least two engaging sections are provided on a common coupling section such that the pivoting axes defined by the respective engaging sections correspond with each other or are in parallel with each other but shifted transversally with respect to each other. In particular all receiving sections or engaging sections are provided on a common coupling sections for the receiving sections or for the engaging sections in such a manner that they are defining two parallel main pivoting axes per coupling section.
Such coupling sections facilitate a coupling of the various components of the hinge mechanism to the compartment door or and frame respectively the housing of the cabinet or refrigerator, as not each single engaging section or receiving section has to be coupled thereto one by one. The coupling sections in particular can have further functions than only coupling the corresponding components of the hinge mechanism to each other. For example, a coupling section can be provided as a removable shelf for the cabinet or refrigerator forming the compartment when inserted into the housing of the cabinet or refrigerator. In such a configuration two receiving sections or engaging sections are provided on the coupling sections having parallel but transversely shifted (with respect to each other) pivoting axes. Alternatively, the coupling sections for example can be provided formed integrally with or coupled to the compartment door of the cabinet or refrigerator. In such a configuration, the coupling section (i.e. the compartment door) is provided with four receiving sections or engaging sections, wherein two of the engaging sections are provided along one first main pivoting axis along one side (for example along the right side) of the compartment door and two engaging sections are provided along a second main pivoting axis, parallel with but transversally shifted with respect to the first main pivoting axis, along the other side (for example along the left side) of the compartment door. Such coupling sections result in a simplified overall configuration and in particular a simplified assembling process.
According to another aspect, a compartment door assembly for an internal compartment of a cabinet or a refrigerator, particularly provided for a recreational vehicle, comprises a compartment door and a hinge mechanism configured to couple the compartment door to a frame or a housing of the cabinet or refrigerator, respectively. The compartment door assembly is characterized in that the hinge mechanism is one of the above described hinge mechanisms.
Such a configuration allows the compartment door assembly to benefit from the above described advantages of the above described hinge mechanisms.
According to one embodiment, the compartment door assembly further comprises a compartment frame configured to be coupled to the housing of the cabinet or refrigerator, wherein the hinge mechanism couples the compartment door to the compartment frame.
Such a compartment frame can be formed integrally with at least some of the engaging or receiving sections of the hinge mechanism and facilitates coupling the hinge mechanism to the housing of the cabinet or refrigerator, respectively.
Further, according to one embodiment, all of the receiving sections of the hinge mechanism are provided on one of the compartment frame or the compartment door forming two parallel and transversally shifted (with respect to each other) main pivoting axes along two opposing sides of the one of the compartment frame and the compartment door. In particular all of the receiving sections are provided on the compartment frame. All of the engaging sections of the hinge mechanism are provided on the other one of the compartment frame and the compartment door forming two parallel and transversally shifted (with respect to each other) main pivoting axes along the two opposing sides of the other one of the compartment frame and the compartment door. In particular all of the engaging sections are provided on the compartment door.
Such a configuration is quite practical and clearly structured, resulting in a simplified and reliable overall configuration.
According to the some embodiments, the compartment door assembly is configured to be movable from a first operation state to a second operation state or to a third operation state. In the first operation state the compartment door can seal a compartment and each of the provided engaging sections is engaged with its corresponding receiving section. In the second operation state the compartment door cannot seal a compartment and only some, in particular the half, of the engaging sections are engaged with its corresponding receiving sections. In the third operation state the compartment door cannot seal the compartment and only the other (half) of the engaging sections are engaged with its corresponding receiving sections.
With this configuration, the compartment door is configured to be moved between one closed and two different opened states, resulting in a high flexibility of the operation of the compartment door. This is of specific advantage, when a main door of the cabinet or refrigerator also is configured to be moved between one closed and two different opened operation states. For the first opened state the compartment door is pivoted with respect to the cabinet or refrigerator about a first main pivoting axis on the right side of the compartment door. For the second opened state the compartment door is pivoted with respect to the cabinet or refrigerator about a second main pivoting axis on the left side of the compartment door. Thus, the compartment door can be moved in harmony with the main door of the cabinet or refrigerator resulting in an improved functionality of the compartment door assembly.
According to some embodiments, the compartment door assembly is configured such that the compartment door can be fully disengaged by simultaneously disengaging all of the engaging sections from its respective receiving sections.
In other words, the compartment door assembly is configured to be moved into a third opened state in which the compartment door is fully disassembled from the compartment frame, if provided. Such a functionality is highly useful in various situations, e.g. when cleaning the compartment or the compartment door.
According to some embodiments, the receiving sections and/or the engaging sections are formed integrally with the compartment door and/or if provided with the compartment frame.
For example, all engaging sections are formed integrally with the compartment door. Such implementations result in a practical and well-structured overall configuration. In particular, the respective receiving sections or engaging sections can be cast as one-piece members together with the corresponding compartment door or compartment frame, respectively.
According to one embodiment, the compartment door has at least two separate handles configured to be operated to move the compartment door with respect to at least a part of the hinge mechanism (for example with respect to some of the receiving sections). In particular, the handles are provided in the form of gripping apertures provided in a front surface of the compartment door.
With such handles, the compartment door can easily be moved from the closed state to any one of the different opened states depending on the choice of the handle which is operated/pulled. In other words, when operating the first handle, for example a left handle of the compartment door, the compartment door moves about a first main pivoting axis, for example provided along the right side of the compartment door, into the first opened state. When operating the second handle, for example a right handle of the compartment door, the compartment door moves about a second main pivoting axis, for example provided along the left side of the compartment door, into the second opened state. Such a configuration is quite simple and functional.
According to some embodiments, the compartment door assembly is configured to seal a freezer of a refrigerator, the freezer being in particular removable.
Such a freezer is a very suitable choice for a compartment of a refrigerator or cabinet. A removable freezer in particular has a removable shelf configured to be arranged in the interior of the refrigerator to form the compartment depicting the freezer.
According to a further aspect, a cabinet or refrigerator, particularly provided for a recreational vehicle, comprises a housing and at least one main door. The housing has side walls (in particular four), a top wall and a bottom wall. The walls are forming an interior space having at least one separate compartment. A front opening is provided in one of the side walls. The at least one main door is configured to seal the front opening of the housing. The cabinet or refrigerator is characterized in that the cabinet or refrigerator, respectively, further comprises at least one of the above described compartment door assemblies and/or at least one of the above described hinge mechanisms coupling a compartment door to the housing, in particular via a separate compartment frame.
Such a cabinet or refrigerator benefits from the above described advantages obtained by the corresponding structural features of the above described devices.
According to a further aspect, a recreational vehicle is provided with at least one of the above described devices.
Such a recreational vehicle benefits from the above described advantages obtained by the corresponding structural features of the above described devices.
A more complete appreciation of the present invention and many of the attendant advantages thereof will be readily obtained as the same become better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
Various embodiments will now be described with reference to the accompanying drawings, wherein identical reference numerals designate identical elements throughout the various drawings.
The hinge mechanism 10 allows to move the compartment door 6a between a closed state, which is illustrated in
As described later with reference to
The concrete structural configuration of the hinge mechanism 10 to be able to implement these functions will now be described with reference to
In this exemplary embodiment, the compartment door assembly 6 comprises the removable shelf 4 depicting here a compartment (sub) frame and the compartment door 6a. The removable shelf 4 is provided with a coupling protrusion 4a configured to be engaged with coupling recesses (not shown) provided on an inner side of the side walls of the housing 2 to divide the interior space of the refrigerator 1 into the two separate compartments 2a and 2b. The removable shelf 4 further comprises a locking member 4b configured to be releasably engaged with a corresponding locking recess (not shown) provided on the inner side of the side walls of the housing to lock the removable shelf 4 in a fully engaged condition with respect to the housing 2.
The compartment door assembly 6 further comprises a hinge mechanism according to some embodiments.
The hinge mechanism has four receiving sections 10a to 10d, wherein in the illustrated embodiment, a second receiving section 10b and a third receiving section 10c are coupled to the removable shelf 4 depicting a compartment (sub) frame as well as a coupling section between these two receiving sections 10b and 10c. A first receiving section 10a and a fourth receiving section 10d are provided independently from the removable shelf 4. Each of the receiving sections 10a to 10d has its own coupling portion 10aa to 10da (some of which are not shown for sake of brevity) and a receiving portion 10ab to 10db (some of which are not shown for sake of brevity). The coupling portions are provided in a plate like shape having several mounting bores to be coupled by corresponding fixing members to the housing 2 and/or the removable shelf 4 of the refrigerator. Although, in the illustrated embodiment the second and the third receiving sections 10b and 10c are coupled via corresponding fixing members (not illustrated) to the removable shelf 4, also configurations in which these receiving sections 10b and 10c are formed integrally with the removable shelf 4 are possible. In such a configuration, the removable shelf 4 with the coupling protrusion 4a and the locking member 4b serve as coupling portions 10ba and 10ca (some of which are not shown for sake of brevity) as well as the fixing members.
The hinge mechanism further has four engaging sections 12a to 12d (some of which are not shown for sake of brevity) provided in the illustrated embodiment as formed integrally with the compartment door 6a. Alternatively, the four engaging section 12a to 12d also could be provided with coupling sections (not shown) configured to be coupled to the compartment door 6a, for example via separate fixing members or directly. Each of the engaging sections 12a to 12d is assigned one of the receiving sections 10a to 10d and has a pin portion 12ab to 12db configured to be engaged with and disengaged from the receiving portion 10ab to 10db of its corresponding receiving section 10a to 10d.
The concrete structural configuration of the receiving sections 10a to 10d (in particular of their receiving portions 10ab to 10db) and of the engaging sections 12a to 12d (in particular of their pin portions 12ab to 12db will now be described in view of
While
The pin portions 12ab to 12db are formed as longitudinal members here in the form of nearly tubular cylinders. However, the pin portions 12ab to 12db are provided in a non-rotational symmetric configuration, which in the present embodiment is achieved by two flattened surfaces 14a and 14b provided on the pin portions 12ab to 12db. The receiving portions 10ab to 10db are formed as c-shaped members, such that each engaging portion 10ab to 10db (respectively each receiving section 10a to 10d) forms with the respective pin portion 12ab to 12db (respectively each engaging section 12a to 12d) an opened bracket hinge.
In detail, the pin portions 12ab to 12db are configured to be engaged with and disengaged from the respective receiving portions 10ab to 10db along an engagement direction perpendicular with respect to a longitudinal direction of the respective pin portion 12ab to 12db and the respective engaging portion 10ab to 10db (corresponding to the respective pivoting axis thereof). In dependency of the rotational orientation of the pin portions 12ab to 12db the pin portions 12ab to 12db can be engaged with or disengaged from the receiving portions 10ab to 10db or not. In
Alternatively or in addition thereto, the receiving portions 10ab to 10db can be made at least partially of an elastic material to be deformable. For example, the receiving portions 10ab to 10db can be provided with an insert 18 made of rubber or another elastically deformable material. Thus, an engaging and a disengaging operation not only can be performed for specific rotational orientations of the pin portions 12ab to 12db with respect to the respective engaging portions 10ab to 10db but in any relative orientation by applying a sufficient pulling force on the handles 8a and 8b.
In addition to such inserts 18 of elastic material, the receiving sections 10a to 10d can be provided with biasing members (not shown), forcing the receiving portions 10ab to 10db towards a configuration, in which the pin portions 12ab to 12db cannot be engaged with or disengaged from the respective engaging portions 10ab to 10db without applying a pulling force sufficient to overcome the biasing force applied by the biasing members.
The receiving sections 10a to 10d are positioned in such a manner that at least two receiving sections 10c and 10d form a first main pivoting axis P1 and at least two other receiving sections 10a and 10b form a second main pivoting axis P2 parallel with the first main pivoting axis P1 but shifted transversally with respect to the first main pivoting axis P1. The respective engaging sections 12a to 12d are positioned in a corresponding manner to be engaged with the receiving sections 10a to 10d in the closed operation state of the compartment door 6a. Here, the second receiving section 10b and the third receiving section 10c are provided on the removable shelf 4 serving as coupling section for these two receiving sections 10b and 10c. Moreover, in the illustrated embodiment all of the provided engaging sections 12a to 12d are provided on the compartment door 6a serving as coupling section for the engaging sections 12a to 12d. However, also other configurations are possible.
Although, in the illustrated embodiment the second and the third receiving sections 10b and 10c are coupled by the removable shelf 4 to the housing 2 and the first and fourth receiving sections 10a and 10d are coupled directly to the housing 2, the compartment door assembly can be provided with a compartment frame (not shown), to which all of the receiving sections 10a to 10d are coupled, wherein the compartment frame is configured to be coupled to the housing 2.
Of course, instead of the receiving sections 10a to 10d the engaging sections 12a to 12d can be coupled to the housing while the receiving sections 10a to 10d are coupled to the compartment door 6a.
The receiving sections 10a to 10d and the engaging sections 12a to 12d always are provided in such a manner that two separate but parallel main pivoting axes P1 and P2 about which the compartment door 6a can be pivoted with respect to the housing 2, are formed.
In addition thereto, in the illustrated embodiment the hinge mechanism is configured such that the compartment door 6a can be fully disengaged from the housing 2. In other words, the compartment door assembly is configured such that also in an assembled state of the compartment door assembly, all of the engaging sections 12a to 12d can be disengaged from the respective receiving sections 10a to 10d. In this embodiment, such an operation state is achievable by operating both handles 8a and 8b simultaneously when the compartment door 6a is in the closed state.
Besides the hinge mechanism, the compartment door assembly 6 and the refrigerator 1, the present embodiments refer to generals cabinets and recreational vehicles like motor homes or caravans provided with at least one of the above described devices.
It is to be noted that for cabinets or refrigerators in recreational vehicles, the doors have to be provided with a locking mechanism preventing and autonomous opening of the door for example due to vibrations and or slanted positions for the recreational vehicle. However, the above described compartment door mechanism does not have to be provided with such a separate locking mechanism as in the assembled state, the main door of the cabinet or refrigerator, which has to be provided with such a locking mechanism locks the compartment door when the main door is closed. Accordingly, the overall structure of the compartment door assembly can be provided in the above described simple but reliable and highly functional configuration.
The above described exemplary embodiment is not provided to serve in a limiting manner but depict a possibility of implementing the present invention. A skilled artisan will easily see many possibilities of adapting the above described configurations without departing form the scope of protection defined by the accompanying claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| DE102019207919.9 | May 2019 | DE | national |
