DE102008021343A1 - household appliance - Google Patents

Abstract

The invention relates to a household appliance (1) having a body (4) and a door (2) articulated by at least one hinge on the body (4) and having an opening limiting body (30) having at least two sections (32, 34), of which a first portion (32) in an opening-limited position of the door (2) on the body (4) is held and of which a second portion (34) on the door (2) is fixed. The opening-limiting body (30) is adapted to convert at least part of the kinetic energy of the door (2) into spring energy of the opening-limiting body (30) upon striking the door (2) in the opening-limited position, the opening-limiting body (30) visibly deforming elastically ,

Description

The The invention relates to a household appliance with a body and one hinged by at least one hinge to the body Door, and with an opening-limiting body, the at least two sections, of which a first section held in an opening-limited position on the body is and of which a second section is fixed to the door is. The household appliance is preferably a cooling or freezer.

The Doors of household appliances generally exhibit only a limited opening angle. To prevent, that the door at powerful opening at the maximum open position strikes and it is damaged, should a Mechanism be present, which is an opening-limited position locks the door and prevents the door from moving on is opened. Such devices should also be in Be able to kick the kinetic energy of the door to absorb. However, this is by the opening limiting devices according to the prior art not met.

Especially in the field of built-in appliances, it is known To use multi-joint hinges whose hinged arms Due to the design only a limited angular freedom to have. Such multi-joint hinges are necessarily complicated by their Construction costly, and they claim a considerable Installation depth, their provision especially in household appliances in stand construction can be problematic.

The WO 2007/031469 A1 discloses a door for a household appliance with a door leaf and a hinge for hinging the door leaf to a body of the household appliance, wherein the hinge comprises a hinge pin and a hinge sleeve which rotatably engage each other and one of which is fixed to the door leaf and the other to a support arm , which is intended for attachment to the body. The hinge has an opening limiting body, of which a first portion is fixed to the door leaf and from which a second portion abuts against the support arm in an opening-limited position of the door. The opening-limiting body comprises a base plate from which the first and second portions protrude. The opening limiting body of WO 2007/031469 A1 has the disadvantage that it is substantially rigid, so that the door when striking in the opening-limited position hits very hard and can be damaged.

The WO 2007/031425 A1 discloses a similar door, but which has two different hinges. The hinges each counteract pivoting movement of the door leaf beyond a maximum opening angle to counter torque. In an angular range immediately before reaching the maximum opening angle, the first hinge is freely rotatable, and the second exerts increasing counter-torque with increasing opening angle. The second hinge has an elastically deformable buffer body with a cantilever arm which extends radially to the pivot axis, and in which a braking portion abuts from the side when the door approaches its maximum opening angle. The construction of the hinge with the buffer body is very expensive.

The Invention therefore has the task of a household appliance to provide the body and door by a simple built-up and yet resilient opening limited Hinge are interconnected.

The The object is achieved in that in a generic Domestic appliance of the opening limiting body is designed to hit the door in the opening limited Position at least part of the kinetic energy of the door in spring energy of the opening limiting body transform, wherein the opening limiting body visibly elastically deformed. This will cause overuse the door at the door stop resiliently intercepted and the forces occurring are reduced. The outside visible area of the door can not be damaged become. Visible deformation means more deformation than 0.1 mm, preferably more than 0.3 mm, more preferably of more than 0.5 mm, and more preferably from 0.8 mm to 2 mm.

Preferably becomes the opening limiting body when shooting the spring energy loaded on bending. For this purpose, the opening limiting body preferably at least one leg, which when striking the door in the opening limited position elastic springs. The leg preferably bends elastically. Age natively or additionally, the opening limiting body or a leg of the same when receiving the spring energy also be subjected to torsion or stretching.

Preferably the leg is formed by an angling. At the elastic Movement may increase the angle of the bend, if necessary, elastic or shrink. In addition, the thigh can bend elastically.

Particularly preferably, the opening limiting body has at least two resilient sections, which convert the kinetic energy into spring energy when the door is hit in the opening-limited position. This can be about act two legs of the Öffnungsbegrenzungskörpers that are bent elastically when striking the door in a similar or different ways.

The Direction of the bending movement of the resilient sections runs preferably at least partially radially and / or parallel to the pivot axis. Thereby the invention differs from conventional opening limiting bodies, in which the bending movement takes place in the circumferential direction, ie in the same direction as the braking force when the door stops. As a result, the opening limiting body can be very easy to be designed.

Of the first portion of the opening limiting body is preferably formed by the bend, with a resilient Leg is connected.

Preferably the resilient leg is at least in the vicinity of its transition at the first section on a support and is at his held the first section opposite end. The support is preferably a part of the door. Possibly. can the resilient leg when striking the door in the opening limited Position a force on the support exercise.

Especially Preferably, the leg is connected to the second section and held by this. As a result, the second section may serve as another In stock.

Of the first section is preferably cantilevered from the leg and for example, engages behind a section fixed to the carcass of the hinge.

Of the Leg is preferably at least approximately over its length on a support. That way if necessary, the forces exerted on the support are well distributed.

Of the first section and thigh can be equal or long be formed differently long. The relative length of the first section and the leg determine the bending moments, which act on the leg or on the first section. The longer a section, the greater the distance from the overlay, and the greater the bending moment.

Preferably the second section is resilient and serves as a fastening section, with the opening limiting body on the door is fixed. The second section exercises so preferred a double function: on the one hand it serves as a fixing section, d. H. if necessary, a bending axis runs through it. On the other hand he can also feathers himself, especially record a bending moment.

Of the first portion of the opening limiting body preferably runs substantially parallel to the pivot axis - z. B. perpendicular - and the second section substantially transverse to the pivot axis - z. B. horizontally. Essentially means here with a deviation of up to 20 °. Of the By contrast, the middle leg preferably runs obliquely to the donation axis, z. B. at an angle of 45 ° to 85 °, preferably 70 ° to 80 ° to the pivot axis.

In a plan view along the pivot axis form the first and second portion of the opening limiting body as well as the pivot axis preferably a triangle.

Preferably is the opening limiting body of an angled Spring material produced with a flat cross-section. He can z. B. as a punched / bent part of a metal sheet, in particular steel sheet be prepared. This preferably has a thickness of 3-6 mm. The first section is in this case for space reasons preferably quite narrow.

alternative the opening limiting body can be angled Be made spring material with a round or oval cross-section, in particular from a wire element. The wire preferably has a diameter from about 3 mm to 5 mm, preferably about 4 mm. The opening limiting body is preferably made of a high quality steel z. Chrome steel or chrome-nickel steel. The strength and strength of the material is to be dimensioned so that the opening limiting body at the forces occurring when the door hits elastic about 0.1 to 3 mm, preferably 0.2 to 2 mm and stronger preferably deformed from 0.5 to 1.5 mm, in particular bends.

alternative it is also possible, the opening limiting body made of an elastically deformable plastic material with round or to form oval cross-section.

Prefers is the thigh when you hit the door at its opening Position of a bearing surface serving as a support the door arched away. It is based the leg z. B. at one or both of its ends against the Bearing surface off, while the middle section of the thigh is bent and so kinetic energy in spring energy transforms. The bearing surface is preferably in a further formed closer connector described below. Preferably, the support surface is parallel to the leg and thus aligned transversely or obliquely to the pivot axis.

From the opening boundary body or whose legs when striking the door at its opening-limited position on the door force exerted is preferably aligned at least partially parallel to the pivot axis of the hinge. As a result, the force is advantageously transmitted to a lower region of the door or the connecting piece.

Of the second portion of the opening limiting body is preferably fixed in a form-fitting manner on the door leaf. Preferably, it is positively enclosed by a trough. This can be achieved by adding the second section to an eyelet is bent. In addition, the eyelet be held by a screw. A cohesive or a frictional connection or combinations thereof with a positive connection are also conceivable.

The Hinge preferably has a bearing pin and a bearing sleeve on which rotatably mesh and one of which is on the door and the other is fixed to a support arm for attachment is provided on the body. Particularly preferably, the hinge comprises a hinge member having a mounting portion for mounting on Body of household appliance, one of the mounting section protruding support arm, and arranged at the free end of the support arm Has bearing element, wherein the support arm in one to the back engages the door open receiving space of the door. Preferably, the first portion of the opening limiting body held on the support arm, z. B. he engages behind the arm.

Preferably the door has a maximum opening angle of 110 ° -180 °, more preferably from 120 ° -150 ° and more preferably from more than 130 °, in particular of 135 ° ± 5 °.

The Hinge element is preferably designed as described below: Preferred are at the free end of the support arm of the hinge element arranged two projecting in opposite directions journal. The two journals form a bearing element and replaced the rolled sleeve of the hinge element according to the State of the art.

Preferably are the two journals along a common pivot axis aligned with the hinge. The journals thus define by its longitudinal direction the pivot axis. When addressing the Door to the hinge element is preferred to one of two bearing pin a bearing pin placed in a on the Door fixed bearing eye is stored.

The Both journals preferably have at least substantially the same cross-section, the z. B. each polyhedral, rectangular or square with within ± 0.1 to ± 0.5 mm can be the same length of edge. Especially the two trunnions are at least substantially mirror-symmetrical arranged to a plane perpendicular to the pivot axis. This has the Advantage that the hinge element used for both sides can be, so a hinging of the door both on the left as well as on the right side of the corpus possible is. For this purpose, the two journals are preferably in line or aligned parallel to each other and preferably have the same length up. Particularly preferred is the entire Hinge element essentially mirror-symmetrical to a plane perpendicular to the pivot axis.

The Hinge element is preferably made of a flat material blank shaped, in particular from a sheet metal blank. Especially preferred the hinge element is made of a steel sheet. Preferably High-strength steel is used, for example chrome steel or stainless steel. The thickness of the flat material blank is preferably 3 mm to 7 mm, more preferably about 5 ± 1 mm.

The Hinge element according to the invention can be simple are manufactured as stamped / bent part, preferably by punching from a steel sheet and then bending. So can Mounting section, support arm and journals made in one piece become. The hinge element can thereby cost be prepared and still has a high strength.

Preferably the support arm in a section perpendicular to the pivot axis a Curvature up. As a result, a recess is formed, in when opening the door, a side wall of a receiving space the door engages, creating a large opening angle is allowed.

The curvature of the support arm is preferably designed such that an even larger opening angle is made possible than in the case of WO 2007/031469 A1 , To achieve this, the hinge element is preferably adapted as far as possible to the pivoting movement of the side wall of the receiving space of the door. In particular, the support arm is angled at an obtuse angle from the mounting portion to - together with the mounting portion - to span a semicircle along which the side wall is pivoted when opening the door. Preferably, the mounting portion and the adjacent thereto portion of the support arm are adapted as far as possible to a semicircular shape. For structural reasons, the mounting portion will usually be straight, as it is to attach to the body of a household appliance. The support arm is then at an obtuse angle of preferably more than 100 °, more preferably more than 110 ° and more preferably from about 115 ° ± 5 ° from the mounting section.

Further describes the arm preferably a total of a bow or a Curve of more than 90 °, preferably more than 120 °, and more preferably from 130 ° to 150 °. This allowed to the trunnions near the Schenkachse too position and allow an even larger opening angle.

Especially Preferably, the radius of curvature of the support arm is about its length varies. The transition between different radii of curvature is preferably continuous, so that the support arm is particularly stable. Continuously variable Curvature radii can be in a hot bending process getting produced. Preferably, the radius of curvature increases the support arm from a point near the mounting section to a certain point continuously to and from there to a point Continuously descending near the free end.

Preferably the support arm has a first adjacent to the mounting portion Section on, the z. B. substantially not or little curved and a second section adjacent to the first section, the first section and one adjacent to the second section End section include an acute intermediate angle. This intermediate angle is less than 90 °, preferably less than 60 °, and more preferably from 30 ° to 50 °. The first section points in total preferably a bend of less than 10 °, and the second section preferably has a maximum radius of curvature from about 5 to 15 mm.

Of the second section connects the first section, which is essentially along the circumferential direction of the pivotal movement, with the End portion of the support arm, arranged at the end of the bearing pin are and extends substantially radially to the pivot axis. The end portion preferably has no or only a slight curvature on, as far as possible adapted to the radial direction is. Alternatively, the end portion may also have a slight bend from Z. B. up to 10 °.

By the curvature of the arm is z. B. achieved that the adjacent the second portion end portion of the support arm in a section perpendicular to the pivot axis an angle of more than 10 °, preferably more than 20 ° and especially preferably from 30 ° to 40 ° to the mounting section having.

By this type of curvature will change the shape of the support arm so far as possible to the circular pivoting of the Side wall of the arranged in the door receiving space adapted. This will cause an opening angle of the hinge of more than 130 °, in particular special of up to 135 ° allowed, preferably up to 140 ° and possibly even up to 160 ° or 180 °.

In the direction of the pivot axis, the support arm preferably its free end to a lower height than the mounting portion. As a result, the available space is optimally used and sufficient Space for the projecting in opposite directions Bearing journals created.

Prefers The arm tapers from the mounting section to his free end in the direction of the pivot axis at least one side. By a gradual rejuvenation will be occurring Forces are optimally distributed over the hinge element. Particularly preferably, the support arm tapers from the mounting portion towards its free end in the direction of the pivot axis on both sides. In this way, the hinge element is slightly elastic, which is the Shatter resistance of the hinge element increases when the Door is exposed to heavy loads.

Especially Preferably, the support tapers in the direction of the Swivel axis mirror-symmetrical to a plane perpendicular to the pivot axis from the mounting section to its free end. this leads to to a high load capacity and allows to the hinge element to use as both a legal stop and a left stop.

The Rejuvenation is beneficial not constant over the length of the support arm. Rather, the rejuvenates Support arm preferably via a first section, the adjoins the mounting section, and has at its on the free End adjacent end section a constant height in the direction the pivot axis. Particularly preferably, the taper runs at least partially approximately linear, d. H. at one a plane spread support arm approximately along a straight line. A exponentially tapering from the mounting section to the free end is also possible.

The Bearing journals preferably have a non-rotationally symmetric and in particular rectangular or square cross section. Thereby is made possible, each rotatably one of the two journals to take in a bearing bolt in one at the door stored bearing eye is stored. A bearing pin is preferred placed on the downwardly projecting bearing journal, in particular if it is an upper hinge of the door.

to Storage in the bearing eye, the bearing pin preferably has a circular cylindrical section on, on the front side arranged a hole or a receptacle for a journal is. The receptacle preferably has the same, not rotationally symmetrical and preferably rectangular or square cross-sectional shape on like the bearing pin, so that the bearing pin rotatably in the bearing pin can be included. The hole is preferably a through hole.

About that In addition, the bearing pin in addition to the receptacle preferably one continuous cable channel, which in particular parallel to the pivot axis runs. This can be done in an elegant way cables be led from the carcass into the door. This is especially useful if in the door control electronics is located, for. B. a display operating module.

Of the Bearing pin is preferably injection molded from plastic. Especially Preferably, it consists of a good sliding plastic such as POM (polyoxymethylene).

Preferably the door has an outer wall and an inner wall between, one filled with insulating foam material Cavity is present. At the upper and / or lower transverse edge the outer and inner wall is preferably a connecting piece or a door closure strip, which outer and inner wall preferably connects together and closes the cavity. The connecting piece is preferably made of plastic, z. B. ABS and is preferably formed as an injection molded part.

Of the facing the carcass receiving space for receiving the support arm of the hinge element is preferably arranged in the connecting piece. Further is the support is preferably arranged on the connecting piece, z. B. in a bottom wall of the receiving space. The recording room is moreover preferably limited by a side wall. In this side wall is preferably a franking for at least partial reception of the opening limiting body arranged. In particular, the first portion of the Öffnungsbegrenzungsköpers extends in the franking, which is preferred by a bulge in the Sidewall is formed. The side wall is preferred by the Connector formed. In open position the door grabs the side wall in through the curve the support arm formed recess, whereby a particularly large opening angle reached becomes.

In the rest position of the opening limiting body the first section is preferably through a gap from the side wall spaced the connector. This is preferably at least partially created by the franking and serves to Room for elastic deformation of the first section to accomplish.

Prefers Furthermore, the bearing eye is embedded in the connector, In particular, it is formed by a molded on the connector Bearing bush formed.

The Door is preferably hinged to two hinges on the body, wherein the opening limiting body according to the invention only with a hinge, in particular the upper hinge, or can be used on both hinges.

The Household appliance is preferably a refrigerator, in particular a refrigerator or freezer or a fridge-freezer in stand construction.

Further Features and advantages of the invention will become apparent from the following Description of embodiments with reference on the attached figures. Show it:

1 a schematic perspective view of a refrigerator, to which the present invention is implemented, with the door closed;

2 a schematic perspective view of the refrigeration device of 1 with open door;

3 a perspective view of a hinge member to which the present invention is implemented;

4 a cross section through the hinge element of 3 but in a mirrored view;

5 a perspective view of a section of the upper front corner of the body of a refrigerator, on which the hinge element of 3 is attached;

6 a similar view as 5 with attached bearing pin;

7 a cross section through the bearing pin along the line VII in 6 ;

8th a perspective view of the right upper corner of the door from the inside, looking at the receiving space, wherein the upper edge of the door is cut for clarity purposes;

9 a perspective view of the upper right corner of the carcass with hinged door;

10 a perspective view similar to that of 9 wherein the upper cover strip of the door is removed, and wherein panels are arranged around the hinge element;

11 a cross section through a right upper corner of the refrigerator with the door open;

12 a cross section through a right upper corner of the refrigerator with the door closed;

13 a longitudinal section through an opening limiting body and the underlying connector;

14 a schematic side view of the opening limiting body of 13 ,

1 shows as an exemplary embodiment of a household appliance, in which the invention is realized, a refrigerator 1 in stand construction with a carcass 4 and a door 2 attached to the body 4 around an axis 3 is hinged pivotally. The axis 3 runs through the door 2 parallel to an in 1 facing away from the viewer side surface of the body 4 ,

The door 2 includes an outer wall 5 , which is bent inwardly on the sides and advantageously made of sheet metal, in particular sheet metal, is formed. The resulting cavity in the door is the refrigerator inside through the inner wall 6 limited, see 2 which is advantageously molded from plastic. The between outer wall 5 and inner wall 6 formed cavity is filled with insulating foam material.

Outer and inner wall are at the upper transverse edge of the door by a connector 7 connected to each other, which simultaneously closes the cavity in the door upwards. Downwardly, the cavity is also bounded by a lower connector (not shown). This may be the same or different as the upper connector 7 , In the connector 7 are on both sides recording rooms 8th intended. Around the recording rooms 8th to cover up, is on the connector 7 one in the 1 and 2 not shown cover strip attached. The door is preferably mirror-symmetrical about a longitudinal axis, so that it can be hinged on both sides to the body.

2 shows the fridge the 1 with the door open. As a result, both recording rooms 8th clearly visible. On the side of the pivot axis 3 protrudes into the receiving space arranged there 8th the support arm of a hinge element 10 , which at the upper section 9 of the door 2 facing front frame of the body 4 is attached. Preferably, at the top section 9 also arranged display and / or controls for the refrigerator.

From the 1 and 2 It can also be seen that the outer wall 5 in the direction of the pivot axis 3 is longer than the inner wall 6 so that the connector 7 to the visible side in whole or in part from the outer wall 5 is covered. This indicates the door 2 outward a uniform, through the outer wall 5 formed outer surface, which causes an appealing aesthetic impression.

3 shows a perspective view of the in 2 recognizable hinge element 10 , The hinge element 10 is formed from a vertically oriented strip heavy plate and has a mounting portion 11 for attachment to the carcass 4 of the household appliance 1 and one from the mounting section 11 protruding support arm 12 on, at the end of two identical up or down protruding bearing pin 16a . 16b are arranged. In the assembly section 11 are two holes 17 to be recognized, which are provided to receive (not shown) screws, with which the hinge element 10 on the body 4 of the household appliance 1 is attached.

The pivot axis 3 runs in the longitudinal direction of the two journals 16a and 16b , The height B of the hinge element 10 in the area of the two journals 16a and 16b is slightly larger than the height of the mounting section 11 in the direction of the pivot axis 3 , Advantageously, the height B of the two journals 16a and 16b 20 mm to 40 mm, more preferably 30 mm to 35 mm. The support arm 12 tapers from the mounting section 11 to its free end, from which the two journals 16a and 16b protrude. This will ensure that the hinge element 10 the upper section 9 the front frame of the carcass 4 not overlooked, which should be only about 40 to 60 mm high, so as not to unnecessarily reduce the useful space of the refrigerator. Would the support arm 12 as in the prior art have a constant height, the journals would have to 16a and 16b taken together have a considerably greater height.

The hinge element 10 is in a plane perpendicular to that through the journals 16a . 16b defined pivot axis mirror-symmetrical. In this way, the hinge element 10 be used both for a left stop as well as for a right stop.

4 shows the hinge element 10 of the 3 in cross-section and in mirror image to that of 3 , The hinge element 10 has over its length a constant thickness d, which is about 5 mm. Based on 4 should now the preferred curvature of the support arm 12 be explained.

The on the body 4 fixed mounting section 11 is substantially straight along a line L ₁ . From the mounting section 11 is a first section 13 of the support arm 12 Angled at an obtuse angle β, which is about 105 ° ± 5 °. The first paragraph 13 initially runs essentially straight along the line L ₂ and then goes into a curved second section 14 above. The curved second section 14 goes back to a straight end section 15 over, which runs along the line L ₃ . The section 14 has a strong curvature, so that the first section 13 and the end section 15 an intermediate angle γ of less than 80 °, in the example shown of 40 ° ± 5 °. The smaller the intermediate angle γ, the greater the achievable opening angle of the door 2 ,

By the curvature of the second section 14 is the end section 15 , at the free end of the journals 16 are arranged at an angle α to the mounting portion 11 inclined towards. The inclination angle α is more than 10 °, preferably more than 20 ° and particularly preferably more than 30 °, in the example shown about 32 °.

Due to the described curvature of the support arm 12 becomes a recess 18 formed in the opening of the door, the side wall of the receiving space 8th pivots in, along the dotted line P, not just the mounting section 11 touched.

5 again shows a perspective view of the hinge element 10 , which now at the upper right corner of the front frame of the carcass 4 a household appliance is attached. These are in the upper section 9 of the front frame threaded holes for the holes 17 provided by continuous screws. 5 shows a right stop of the door, so that the support arm 12 bent to the right.

In 5 it can be seen that the support arm 12 from the mounting section 11 tapers towards its free end, on a mirror-symmetrical to a plane perpendicular to the pivot axis. The rejuvenation is strongest in the first section 13 , then sits down in the second section 14 continues while the end section 15 only slightly tapered or even has a constant height. The taper in the first and between section is approximately linear, ie in a spread on a plane support arm 12 approximately along a straight line, until the transition to the end section 15 , An exponential from the mounting section 11 to the end section 15 decreasing rejuvenation is also conceivable.

6 shows one to 5 comparable representation, in which now on the lower journals 16b a bearing bolt 20 is attached. A cross section of the bearing pin 20 along the line VII is in 7 shown. The bearing bolt 20 has a lower portion with circular cylindrical outer surface, which is provided for storage in a bearing eye fixed to the door. On the top is a bowl-like section on one side 19 which serves as a cable duct and as a lining for the end portion of the hinge element 10 serves.

How out 7 can be seen, is in the bearing pin 20 a square cross-section hole 22 provided, which the journal 16b without play. Adjacent to the hole 22 is a parallel to the pivot axis extending cable channel 21 arranged with oval or any cross-section, which is used to guide cables from the carcass 4 in the door 2 is provided. Preferably, the cable channel 21 and the hole 22 continuous. The bearing bolt 20 is made as an injection molded part of a plastic with a low coefficient of friction such as polyoxymethylene (POM).

8th shows a perspective view into the receiving space 8th in the upper right corner of the door 2 , from the corpus 4 seen from. The upper section including the cover strip of the door 2 is cut off for better visibility. Down is the inner wall 6 recognizable, at the outer edges of a magnetic seal 29 is arranged. Above the inner wall 6 closes the connector 7 at. Behind it is the outer wall 5 arranged facing to an outside wall side portion 25 is bent over. Together with a side wall section 51 of the connector 7 forms the outer wall side portion 25 thus the side wall 28 of the recording room 8th in the door 2 ,

The recording room 8th also has a bottom wall 37 and a wall 38 to the visible side of the door, into which a bag 39 is admitted. In the area of the bag 39 the wall runs 39 parallel to and very close or adjacent to the outer wall 5 ,

In the connector 7 is also the bearing eye 24 by forming a bearing sleeve 23 formed, in which the bearing bolt 20 (in 8th not shown).

Finally, in 8th an opening limiting body 30 seen, which is formed by a wire element, which has an approximately parallel to the pivot axis extending first portion 32 having. This first section 32 engages behind the support arm 12 and thereby defines an opening-limited position of the door. At the other end of the pub limiting body 30 is a second section 34 is curved into a loop and in a hollow 35 in the ground 37 of the connector 7 added. As a result, it is fixed positively to the door. In the middle of the eyelet is the second section 34 additionally by a screw 31 attached. A middle thigh 33 of the opening limiting body 30 runs along one opposite the pivot axis 3 obliquely oriented support surface 36 who are also in the ground 37 of the connector 7 is formed.

9 shows how 6 a perspective view of the upper right corner of the refrigerator 1 , with hinged door. In contrast to 6 is the lower portion of the bearing pin 20 in the bearing sleeve 23 of the bearing eye 24 swivel-mounted. Here, the first section engages behind 32 of the opening limiting body 30 the support arm 12 and is therefore in 9 covered. Upstairs is the recording room 8th through a cover strip 43 covered.

Further shows 9 a cable bundle 45 which passes through the cable channel 21 in the bearing bolt 20 in the cavity of the door 2 is guided.

10 also shows a perspective view of the upper right corner of the refrigerator with hinged door, but without cable bundle 45 and with removed cover strip 43 , Furthermore, in 10 the panels of the hinge element shown, which by plastic elements 40 . 41 and 42 be formed.

In addition, in 10 the lower portion of the bearing sleeve 23 to recognize in the between outer wall 5 and inner wall 6 formed cavity protrudes and through the cable into the door 2 can be performed.

11 and 12 show cross-sections perpendicular to the pivot axis through the hinge element 10 with hinged door with door open ( 11 ) and closed door ( 12 ). The pivot axis 3 runs in each case through the axis of the bearing pin 20 ,

In the sectional views are the upwardly projecting section 19 of the bearing bolt 20 , a cut cable bundle 45 and a screw 26 recognizable, with the mounting section 11 is attached to the body of a household appliance (not shown). Any panels of the hinge element are not provided for purposes of clarity. The opening limiting body 30 is visible from above, as well as the trough 35 in which its second section 34 is fixed.

How out 11 can be seen, the first section intervenes 32 of the opening limiting body 30 behind the support arm 12 and beats there in the opening-limited position of the door in the area between the second section 14 and the end section 15 of the support arm 12 at. In this wide open position pivots the side wall 28 of the recording room 8th in the recess formed by the curvature of the support arm 12 into it. The sections 13 . 14 and 15 of the support arm 12 are curved so that the side wall 28 when opening the door not on the support arm 12 although it describes along the dotted line P an arc of up to 135 °. In order to allow a particularly large opening angle, the first section 32 of the opening limiting body 30 furthermore in a franking 52 in the sidewall 28 arranged so that he even with large opening angle the support arm 12 engages behind.

At the in 12 illustrated closed position of the door protrudes the curved portion 14 of the support arm 12 in the pocket 39 into it, which in the wall 38 of the connector 7 is formed. Through the bag 39 it is possible the first section 13 especially long and the curvature of the second section 14 particularly strong form, which allows a particularly large opening angle of the door.

Based on 13 and 14 will now be explained in more detail the elastic movement of the opening limiting body.

13 shows a section through the connector 7 on which the opening limiting body 30 rests. The thigh 33 is against the sloping contact surface 36 supported, while the first section at the bend 46 is angled upwards. The second section 34 is at the bend 48 from the thigh 33 angled and through the screw 31 at the connector 7 and thus attached to the door.

The same parts are highly schematized also in 14 reproduced in side view, with the sections 32 . 33 and the thigh 34 of the opening limiting body 30 shown here only as dashes. The solid lines represent the opening boundary body 30 in the rest position. The dashed lines represent the shape of the opening limiting body 30 in a state in which the door strikes in its opening-limited position. Then by the support arm 12 a force F ₁ on the first section 32 exercised. The transmitted kinetic energy is absorbed in two spring lines, which in the 13 and 14 with R ₁ and R _{2 are} designated.

Depending on which distance from the bend 46 the force F ₁ at the first section 32 attacks, the first section 32 spring in the direction R ₁ , bending in that direction. Because the first section 32 is relatively short (about 5 to 10 mm), it will bend only slightly. In addition, possibly also the radius of curvature at the bend 46 increase elastically. The maximum deflection of the first section 32 in the direction R ₁ is about 0.3 to 1 mm. To make room for this deflection is the top section 32 from the sidewall portion 51 separated by a gap. The gap has a width e of about 0.5 to 2 mm, preferably about 1 ± 0.2 mm.

On the other hand, the thigh arches 33 - and possibly also the second section 34 - Up in the direction indicated by R ₂ direction. This supports the thigh 33 in the area of the bend 46 on the support surface 36 off, leaving a force on the support surface 36 acts, see arrow F ₂ . In addition, if necessary, a tensile force acts on the second section 34 which is derived on the trough enclosing the eyelet. Due to the relatively long length of the thigh 33 (about 20-30 mm) he will visibly arch, namely z. B. about about 0.2 to 2 mm in the direction of R ₂ . Here, the leg and possibly also the second section bend 34 and thereby absorb spring energy. Furthermore, the radius of curvature at the bend 48 and thus the angle of curvature 48 be elastically enlarged, as in 14 to recognize.

The spring movements R ₁ and R ₂ are in 14 possibly exaggerated. The forces occurring when the door stops are applied to the underlying inclined support surface 36 (Force F ₂ ) and the eyelet enclosing trough derived. In this way, the forces are distributed well enough to damage the connector 7 to avoid.

The Invention thus provides a resilient doorstop, which the forces occurring at the door stop resilient absorbs and thus prevents overuse.

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household appliance

2

door

3

swivel axis

4

corpus of the household appliance

5

outer wall the door

6

inner wall the door

7

joint

8th

accommodation space in the connector

9

Oberer Section of the front frame of the carcass

10

hinge element

11

mounting portion

12

Beam

13

first Section of the support arm

14

second Section of the support arm

15

end of the support arm

16 16a, 16b

pivot

17

mounting holes

18

Curved recess in the support arm 12

19

Oberer Section of the bearing pin

20

bearing bolt

21

Cabel Canal

22

hole for bearing journals

23

bearing bush

24

bearing eye

25

Exterior wall-side portion

26

screw

28

Sidewall of the recording room 8th

29

magnetic seal

30

Opening restriction body

31

screw

32

First section of the opening limiting body 30

33

Middle leg of the opening limiting body 30

34

Second section of the opening limiting body 30

35

Trough in the connector 7

36

slope bearing surface

37

Floor of the recording room 8th

38

Front wall of the recording room 8th

39

Bag in the back wall 38

40

paneling of the support arm

41

paneling of the bearing bolt

42

paneling of the mounting section

43

Upper cover strip of the connector 7

45

cable bundle

51

Sidewall portion of the connector 7

52

Franking in the side wall 28

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - WO 2007/031469 A1 [0004, 0035]
• WO 2007/031569 A1 [0004]
• WO 2007/031425 A1 [0005]

Claims (26)

Household appliance ( 1 ) with a body ( 4 ) and one by at least one hinge on the body ( 4 ) hinged door ( 2 ), and with an opening limiting body ( 30 ) containing at least two sections ( 32 . 34 ), of which a first section ( 32 ) in an opening-limited position of the door ( 2 ) on the body ( 4 ) and of which a second section ( 34 ) at the door ( 2 ), characterized in that the opening limiting body ( 30 ) is designed to stop the door ( 2 ) in the opening-limited position at least part of the kinetic energy of the door ( 2 ) in spring energy of the opening limiting body ( 30 ), wherein the opening limiting body ( 30 ) visibly elastically deformed. Household appliance ( 1 ) according to claim 1, characterized in that the opening limiting body ( 30 ) is loaded when receiving the spring energy to bending. Household appliance ( 1 ) according to claim 1 or 2, characterized in that the opening limiting body ( 30 ) at least one leg ( 32 ), which when striking the door ( 2 ) elastically springs in the opening-limited position. Household appliance ( 1 ) according to claim 3, characterized in that the leg ( 33 ) is formed by an angling. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the opening limiting body ( 30 ) at least two resilient sections ( 32 . 33 ), which when striking the door ( 2 ) convert the kinetic energy into spring energy in the opening-limited position. Household appliance ( 1 ) according to claim 5, characterized in that the direction of the bending movement (R ₁ , R ₂ ) of the resilient portions ( 32 . 33 ) at least partially radially and / or parallel to the pivot axis ( 3 ) runs. Household appliance ( 1 ) according to one of claims 4 to 6, characterized in that the first section ( 32 ) of the opening limiting body ( 30 ) is formed by the bend, which with a resilient leg ( 33 ) connected is. Household appliance ( 1 ) according to one of claims 3 to 7, characterized in that the resilient leg ( 33 ) at least in the immediate vicinity of its transition to the first phase ( 32 ) rests on a support and at its the first section ( 32 ) opposite end is held. Household appliance ( 1 ) according to one of claims 7 or 8, characterized in that the leg ( 33 ) with the second section ( 34 ) is connected and held by this. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the first section ( 32 ) cantilevered from the thigh ( 33 ) protrudes. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the leg ( 33 ) rests on a support at least approximately over its length. Household appliance ( 1 ) according to one of claims 1 to 11, characterized in that the first section ( 32 ) and the thigh ( 33 ) are of different lengths. Domestic appliance according to one of claims 1 to 11, characterized in that the first section ( 32 ) and the thigh ( 33 ) are formed the same length. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the second section ( 34 ) is resilient and serves as a mounting portion. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the first section ( 32 ) of the opening limiting body ( 30 ) substantially parallel to the pivot axis ( 3 ) and the second section ( 34 ) substantially transversely to the pivot axis ( 3 ) runs. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the first and second sections ( 32 . 34 ) of the opening limiting body ( 30 ) and the pivot axis ( 3 ) in a plan view along the pivot axis ( 3 ) form a triangle. Household appliance ( 1 ) according to one of claims 1 to 16, characterized in that the opening limiting body ( 30 ) is made of an angled spring material with a flat cross-section. Household appliance ( 1 ) according to one of claims 1 to 16, characterized in that the opening limiting body ( 30 ) is made of an angled spring material with a round or oval cross-section. Household appliance ( 1 ) according to one of claims 1 to 16, characterized in that the opening limiting body ( 30 ) made of elastically deformable plastic material with round or oval Cross-section is shaped. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the leg ( 33 ) when hitting the door ( 2 ) at its opening-limited position of a support surface serving as a support ( 36 ) the door ( 2 ) is arched away. Household appliance ( 1 ) according to claim 20, characterized in that the bearing surface ( 36 ) transversely or obliquely to the pivot axis ( 3 ) is aligned. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the second section ( 32 ) of the opening limiting body ( 30 ) with a positive fit on the door ( 2 ). Household appliance ( 1 ) according to one of the preceding claims, characterized in that the hinge comprises a bearing pin and a bearing sleeve, which rotatably engage with each other and of which one on the door ( 2 ) and the other on a support arm ( 12 ) fixed for attachment to the body ( 4 ), the first section ( 32 ) in an opening-limited position of the door ( 2 ) on the support arm ( 12 ) is held. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the hinge is a hinge element ( 10 ) comprising a mounting section ( 11 ) for mounting on the body ( 4 ) of the household appliance, one of the mounting section ( 11 ) projecting support arm ( 12 ), and arranged at the free end of the support arm bearing element ( 16a . 16b ), wherein the support arm ( 12 ) in one to the back of the door ( 2 ) open space ( 8th ) the door ( 2 ) intervenes. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the door ( 2 ) has a maximum opening angle of more than 130 °. Household appliance ( 1 ) according to one of the preceding claims, characterized in that it is a refrigeration device, in particular a refrigerator.