EP1639219B1 - Hinge for doors and windows, especially food industry swinging doors - Google Patents
Hinge for doors and windows, especially food industry swinging doors Download PDFInfo
- Publication number
- EP1639219B1 EP1639219B1 EP04735276A EP04735276A EP1639219B1 EP 1639219 B1 EP1639219 B1 EP 1639219B1 EP 04735276 A EP04735276 A EP 04735276A EP 04735276 A EP04735276 A EP 04735276A EP 1639219 B1 EP1639219 B1 EP 1639219B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base
- pin
- wing
- house
- doors
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 239000004809 Teflon Substances 0.000 claims abstract description 6
- 229920006362 Teflon® Polymers 0.000 claims abstract description 6
- 230000002349 favourable effect Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000228957 Ferula foetida Species 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007531 graphite casting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D3/00—Hinges with pins
- E05D3/02—Hinges with pins with one pin
- E05D3/022—Hinges with pins with one pin allowing an additional lateral movement, e.g. for sealing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/48—Suspension arrangements for wings allowing alternative movements
- E05D15/54—Suspension arrangements for wings allowing alternative movements for opening both inwards and outwards
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/10—Devices for preventing movement between relatively-movable hinge parts
- E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
- E05D11/105—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open the maintaining means acting perpendicularly to the pivot axis
- E05D11/1064—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open the maintaining means acting perpendicularly to the pivot axis with a coil spring perpendicular to the pivot axis
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
- E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
- E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/11—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for industrial buildings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Definitions
- the invention relates to a hinge that can be used for doors and windows, especially food industry swinging doors, which is designed for connecting the door wing to the case.
- GB-A- 804 584 discloses a hinge for swinging doors and discloses the features of the preamble of claim 1.
- the presently known door hinges designed for this purpose only partly comply with these conditions.
- they are made of graphite casting, and their more robust constructions are not suitable for complying with the hygienic requirements.
- the versions that comply with the hygienic requirements are made of stainless metal, their structural construction is complicated, their production is rather expensive, their bearing capacity is limited, their life is rather short first of all because of the jamming caused by the rotation of the hinges, and they cannot be fixed in a position open at 90°, resulting in the complete opening of the door wing.
- swinging door hinges made completely of plastic are hygienically suitable, but due to their small bearing capacity they are generally not used in practice.
- European patent specification No. EP 1 148 195 for example describes a spring door-hinge
- USA patent specification No. 4 351 086 also relates to a similar structure, which consists of a spring surrounding a pin and a receiving house.
- the patent specification SE 205 661 relates to a door hing having an U-shaped casing by inserting a fixing plate, on the outside surface of which there is a friction-reducing plate. The curved head attached to the wing rotates on this plate-surface when the door is opened or closed. The three positions of the wing are: completely closed, completely opened, and an intermediate position, from which the door is returned by the springs into the closed position, while the completely opened position is fixed automatically.
- the springs surround the threaded shanks, which are connected to a vertical pin, and the wing rotates around this pin.
- the displacement of the wing in any direction results in the stretching of the springs, and after the decentering force terminates the springs pull back the wing into closed position.
- the stretch of the springs can be adjusted with the adjusting screws. If the position of the wings parallel to the wall changes the appropriate position can be restored with the screws arranged in a V shape in top view.
- the task to be solved with the invention is to provide a hinge ensuring connection between the case and stanchion of doors and windows, especially food industry swinging doors, which can completely satisfy the requirements of the known solutions for this purpose described above, complies with the hygienic prescriptions, its bearing capacity is suitable for heavy weight door wings, the surfaces of the structure parts easily sliding on each other do not get jammed as a result of these movements, and so the life of the hinge is long, the wing automatically stays open when it is turned round by 90°, and it can be used with different types of door panels.
- the invention is based on the recognition that the disadvantageous characteristic feature of polished hinges made of cast stainless metal, satisfying hygienic requirements, namely that as a result of heavy loading they are liable to jamming, can be overcome, if the surfaces belonging to the case, getting in contact with the hinges in the course of their frequent sliding-tilting movements are made of bearing and enduring plastic, which is also suitable from a hygienic aspect.
- our further recognition was that the wing, e.g.
- the door panel can also be easily moved, if the spring-force holding the wing to the case is rather great, and that in its open final position the wing automatically stays open, if in the case of opening the door at 90° the tilting point of the house supporting the wing goes through the centre-line of the bolted shaft connecting the case and the wing.
- the pull spring-force is also exerted, if in the case of opening the door the length of the shifting of the tilting point is greater - preferably by 4-5 mm in general - than the shifting of a bolted shaft connecting the house and the sleeved shaft to each other, perpendicular to the latter one.
- a hinge defined by the features of claim 1 according to the subject of the invention especially a food industry swinging door hinge, which has a house receiving the wing of the door and a base attached to the surface of the case of the door facing the wing, which base contains an opening designed for guiding a pin connecting the wing and the case; in the area of the end of the pin guided in the house through the opening there is a connecting element, and the house is connected to the pin by a bolt guided through the connecting element; on the side of the house facing the base there is a sliding-tilting head, which contains curved lateral surfaces fitting the base when turning the wing, and which can be turned against the force of the spring situated in the case, and which hinge is characterised by that
- the spring is a spiral spring, the one end of which supports against the surface of the base facing the inside of the case and the other end supports against a favourably flat underplate situated between the end of the spring and a - practically self-locking - nut making it possible to control the spring force.
- the slide insert is made of a material with a low coefficient of friction, favourable plastic, for example Teflon, and is provided with a flange supporting onto the base on its side facing the house.
- the sleeve the length of which is suitable for taking in the spring and fits onto the slide insert is stiffly attached to the base or is made in one piece with it.
- the sliding-tilting head of the house contains a lower head part and an upper head part at a certain distance from each other, and through openings of the same diameter are made in them in one line;
- the connecting element at the end of the pin is formed by a connecting sleeve the longitudinal geometrical central axis (y) of which is perpendicular to the pin's longitudinal geometrical central axis (x); in the operating position of the hinge the through opening of the connecting sleeve is in the same line with the openings in the head parts, its diameter is the same, and the house is connected to the pin with a bolt guided through these openings.
- the front sides of the lower and upper head parts of the sliding-tilting head facing the slide inserts of the base contain a flat, straight lateral surface in the middle, a curved lateral surface on both sides and tilting points in the area where the straight lateral side and the flat lateral sides meet.
- the distance of the tilting points of the sliding-tilting head measured from the vertical geometrical mid-plane of the wing is larger than the distance between the longitudinal geometrical central axis of the bolt connecting the wing to the pin and the outer plane of the base facing the wing.
- the house, the base, the pin with the connecting sleeve, the bolt and the spring-guiding sleeve are made of stainless metal.
- the hinge shown in figures 1 and 2 made of a stainless material functions as a connecting member between the case 1 and wing 2 - door panel - of a swinging door, and its main parts are the house 3 holding and fixing the wing 2 and the base 4 attached to the case 1.
- the swinging wing 2 marked with dot-and-dash lines fits between the bearing plates 5a, 5b of the house 3 containing through openings 6 and holes parallel to each other, which wing is fixed to the house 3 with the help of milled oval-head nuts 8 driven through the pairs of holes formed by holes 6, 7 and with the help of milled oval-head screws 9.
- the base 4 is fixed to the case 1 in a similar way.
- the nut and screw heads are favourably countersunk.
- the part of the house 3 from the bearing plates 5a, 5b towards the case 1 is formed by the sliding-tilting head 10, which has an upper head part 10a and a lower head part 10b at a certain distance from each other in a vertical sense, and between them there is an open gap 11 on all sides.
- openings 12a, 12b there are through openings 12a, 12b with a circular cross-section, with the same diameter, falling in one line, with a common longitudinal geometrical central axis, so the cylindrical bolt 13 with a diameter suiting the cross-section size of the openings 12a, 12b can be driven through the openings 12a, 12b, and the length of the bolt 13 is chosen so that the circular grooves 13a, 13b in the area of its ends are situated slightly outside of the lower and upper surface of the house 3, and so the bolt 13 can be fixed in its position in the openings 12a, 12b with the rings 14 shown in figure 1 .
- the openings 12a, 12b and the bolt 13 have a common y longitudinal geometrical central axis.
- the front side of the upper and lower head parts 10a, 10b of the sliding-tilting head 10 of the house 3 facing the case 1, in the middle, is constructed with a flat straight lateral surface 27 ensuring the position of the wing 2 perpendicular to the base 4, and with curved lateral surfaces 26 on its two sides. Where the curved surfaces 26 end on the outer side, a tilting point 29 is shown at each place, the role of which will be explained later in the course of describing the operation of the hinge.
- the base 4 there is a central through opening 17 with a circular cross-section, and the pin 18 connecting the case 1 with the house 3 is driven through it, which pin 18 is formed by a cylindrical rod with a circular cross-section made of a corrosion-resistant material. Most of it goes inside the case 1, and its end going in the house 3 contains a connecting sleeve 21, which can be constructed in one piece with the rod.
- the through opening 22 of the connecting sleeve 21 with a circular cross-section also has the y longitudinal geometrical central axis mentioned above, so it is perpendicular to the x longitudinal geometrical central axis of the pin 18, and its diameter is the same as the diameter of the openings 12a, 12b.
- the connecting pint 18 has a smooth part 18a starting from the connecting sleeve 21 and a threaded part 18b extending from the end of the smooth part to the end of the pin 18 going into the case 1; in the case of the present example the smooth part 18a and the threaded part 18b are practically of the same or nearly same length.
- the connecting pin 18 goes into a nest 39 made for this purpose inside the case 1, so it is situated in an encircled space together with the spring surrounding it.
- the smooth part 18a of the pin 18 is surrounded by a cylindrical slide insert 19, which goes through the opening 17 and with its flange 19a running all round it supports onto the external surface of the base 4 facing the house 3, and with its internal cylindrical surface it fits onto the smooth part 18a of the pin 18 so that the smooth part 18a can move longitudinally, linearly, in the direction of double arrow back and forth inside the slide insert 19, onto which a spring-guide sleeve 20 made of stainless metal is fitted closely from the outside, and one end of the spring-guide sleeve 20 is welded to the surface of the base 4 facing the case 1, or it is made in one piece with it.
- a spring-guide sleeve 20 made of stainless metal
- food industry swinging doors including the swinging door according to the invention, must basically fulfil three main functions: ensure the closed condition of the space delimited by it; if a vehicle, e.g.: a fork-lift truck, goes through the door opening, the wing must make it possible for the vehicle by swinging out of its closed position, and when the vehicle has gone through the opening, the wing must swing back into its closed position; finally, in the case of rotating the wing by 90 °C it must stay in the same position until it is pushed back into its closed position by an external force.
- a vehicle e.g.: a fork-lift truck
- the wing 2 in closed position is opened by a vehicle (not shown) coming from the direction of arrow A shown in figure 4 , the wing 2 rotates in the direction of arrow c , the curved lateral surfaces 26 of the head parts 10a, 10b slide on the insert plates 15, 16, and in the course of this the tilting point 29 also moves in accordance with the extent of rotation.
- the vertical geometrical centre-line of the base is marked with reference letter k .
- the wing 2 needs to be kept open for a longer period, it should be rotated in the direction of arrow c shown in figure 4 until the tilting point 29 gets over centre-line k , as a result of which the wing 2 automatically remains fixed; this position is shown in figure 5 , where the distance by which the tilting point 29 moved over centre-line k is marked with reference letter e .
- the geometrical relations of the structure should comply with the following conditions: the d 1 space between the tilting point 29 and the longitudinal geometrical mid-plane x 1 of the wing 2 (longitudinal geometrical central axis x falls in this longitudinal geometrical mid-plane x 1 ) must-be larger than the distance d 2 of the longitudinal geometrical central axis y of the bolt 13 connecting the wing 2 to the pin 18 measured from the external surface of the base 4 ( figure 3 ).
- the spring 23 exerts its stressing force onto the wing 2 as it has been described above in connection with figures 3-5 and as it is shown in the figures, where it can be seen well how the spring is pressed and how it is put under increasing stress while its length b 1 belonging to the closing position shown in figure 3 first decreases to a smaller length b 2 as shown in figure 4 and then it decreases to an even smaller length b 3 suiting the fixed open final position as shown in figure 5 , while an increasingly bigger part of the pin 18 slides over into the space on the other side of the base 4 containing the wing 2.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hinges (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
Description
- The invention relates to a hinge that can be used for doors and windows, especially food industry swinging doors, which is designed for connecting the door wing to the case.
GB-A- 804 584 claim 1. - It is known that numerous facilities with strict hygienic requirements, such as food industry plants, stores and similar facilities require doors and windows, first of all swinging doors, which are designed in a way that they do not need to be touched by hand in order to open or close them, but when trolleys are pushed against them they swing out of their still position and then close automatically. Also there is another requirement in connection with such swinging doors, namely that if people often go through the door opening during operating hours the door wing is expected to stay open temporarily- in a position open at 90 ° - because in this case it is easier to go through the door and less damage is done to the door structure.
- Furthermore food industry doors and windows must also comply with the relating hygienic prescriptions, and the swinging door case and wing as well as the hinges connecting them must be made of a material complying with these requirements. This material must be suitable for letting the hinges fixed to the door panel slide and tilt on the case making it possible for the door wing to move easily and for enabling the hinges to support the weight of the heavy wings.
- The presently known door hinges designed for this purpose only partly comply with these conditions. Generally they are made of graphite casting, and their more robust constructions are not suitable for complying with the hygienic requirements. The versions that comply with the hygienic requirements are made of stainless metal, their structural construction is complicated, their production is rather expensive, their bearing capacity is limited, their life is rather short first of all because of the jamming caused by the rotation of the hinges, and they cannot be fixed in a position open at 90°, resulting in the complete opening of the door wing. Although swinging door hinges made completely of plastic are hygienically suitable, but due to their small bearing capacity they are generally not used in practice.
- European patent specification No.
EP 1 148 195USA patent specification No. 4 351 086 also relates to a similar structure, which consists of a spring surrounding a pin and a receiving house. The patent specificationSE 205 661
If the position of the wings parallel to the wall changes the appropriate position can be restored with the screws arranged in a V shape in top view. - However, the above-referenced solutions are not completely suitable for satisfying the requirements of food industry swinging doors described above.
- The task to be solved with the invention is to provide a hinge ensuring connection between the case and stanchion of doors and windows, especially food industry swinging doors, which can completely satisfy the requirements of the known solutions for this purpose described above, complies with the hygienic prescriptions, its bearing capacity is suitable for heavy weight door wings, the surfaces of the structure parts easily sliding on each other do not get jammed as a result of these movements, and so the life of the hinge is long, the wing automatically stays open when it is turned round by 90°, and it can be used with different types of door panels.
- The invention is based on the recognition that the disadvantageous characteristic feature of polished hinges made of cast stainless metal, satisfying hygienic requirements, namely that as a result of heavy loading they are liable to jamming, can be overcome, if the surfaces belonging to the case, getting in contact with the hinges in the course of their frequent sliding-tilting movements are made of bearing and enduring plastic, which is also suitable from a hygienic aspect. Our further recognition was that the wing, e.g. door panel, can also be easily moved, if the spring-force holding the wing to the case is rather great, and that in its open final position the wing automatically stays open, if in the case of opening the door at 90° the tilting point of the house supporting the wing goes through the centre-line of the bolted shaft connecting the case and the wing. Finally we recognised that the pull spring-force is also exerted, if in the case of opening the door the length of the shifting of the tilting point is greater - preferably by 4-5 mm in general - than the shifting of a bolted shaft connecting the house and the sleeved shaft to each other, perpendicular to the latter one.
- On the basis of the above recognition the set task was solved with a hinge defined by the features of
claim 1 according to the subject of the invention, especially a food industry swinging door hinge, which has a house receiving the wing of the door and a base attached to the surface of the case of the door facing the wing, which base contains an opening designed for guiding a pin connecting the wing and the case; in the area of the end of the pin guided in the house through the opening there is a connecting element, and the house is connected to the pin by a bolt guided through the connecting element; on the side of the house facing the base there is a sliding-tilting head, which contains curved lateral surfaces fitting the base when turning the wing, and which can be turned against the force of the spring situated in the case, and which hinge is characterised by that - sliding inserts made of a material resistant to wear and catches, preferably plastic, for example Teflon, are built in the base at places getting in contact with the sliding-tilting head when rotating the wing;
- the pin has a threaded part in the area of the end of the pin opposite the connecting element, and a preferably smooth part starting from the connecting element, surrounded at least partly by a cylindrical slide insert the position of which is fixed in relation to the base, allowing the longitudinal movement of the pin inside it, and by a sleeve fitting to it; and
- the spring is situated around the part of the pin inside the case, supported at its two ends.
- According to a favourable construction example the spring is a spiral spring, the one end of which supports against the surface of the base facing the inside of the case and the other end supports against a favourably flat underplate situated between the end of the spring and a - practically self-locking - nut making it possible to control the spring force. Another construction example may also be favourable, according to which the slide insert is made of a material with a low coefficient of friction, favourable plastic, for example Teflon, and is provided with a flange supporting onto the base on its side facing the house.
- According to a further preferred criterion of the invention the sleeve the length of which is suitable for taking in the spring and fits onto the slide insert is stiffly attached to the base or is made in one piece with it.
- Another favourable construction of the hinge is characterised by that the sliding-tilting head of the house contains a lower head part and an upper head part at a certain distance from each other, and through openings of the same diameter are made in them in one line; the connecting element at the end of the pin is formed by a connecting sleeve the longitudinal geometrical central axis (y) of which is perpendicular to the pin's longitudinal geometrical central axis (x); in the operating position of the hinge the through opening of the connecting sleeve is in the same line with the openings in the head parts, its diameter is the same, and the house is connected to the pin with a bolt guided through these openings.
- Furthermore it can be favourable, if the front sides of the lower and upper head parts of the sliding-tilting head facing the slide inserts of the base contain a flat, straight lateral surface in the middle, a curved lateral surface on both sides and tilting points in the area where the straight lateral side and the flat lateral sides meet. According to another construction example the distance of the tilting points of the sliding-tilting head measured from the vertical geometrical mid-plane of the wing is larger than the distance between the longitudinal geometrical central axis of the bolt connecting the wing to the pin and the outer plane of the base facing the wing. Finally it may be practical, if the house, the base, the pin with the connecting sleeve, the bolt and the spring-guiding sleeve are made of stainless metal.
- Below the invention is described in detail on the basis of attached drawings, which show a favourable construction of the hinge. In the drawings
- figure 1
- shows the hinge in perspective;
- figure 2
- is a horizontal section taken along the longitudinal geometrical central axis of the hinge according to
figure 1 ; - figure 3-5
- show three basic positions of the house of the hinge connected to the door panel as compared to the breast plate belonging to the case, in diagrammatic top view.
- The hinge shown in
figures 1 and2 made of a stainless material functions as a connecting member between thecase 1 and wing 2 - door panel - of a swinging door, and its main parts are thehouse 3 holding and fixing thewing 2 and thebase 4 attached to thecase 1. The swingingwing 2 marked with dot-and-dash lines fits between thebearing plates house 3 containing throughopenings 6 and holes parallel to each other, which wing is fixed to thehouse 3 with the help of milled oval-head nuts 8 driven through the pairs of holes formed byholes head screws 9. Thebase 4 is fixed to thecase 1 in a similar way. The nut and screw heads are favourably countersunk. - The part of the
house 3 from thebearing plates case 1 is formed by the sliding-tiltinghead 10, which has an upper head part 10a and alower head part 10b at a certain distance from each other in a vertical sense, and between them there is anopen gap 11 on all sides. In thehead parts 10a, 10b there are throughopenings 12a, 12b with a circular cross-section, with the same diameter, falling in one line, with a common longitudinal geometrical central axis, so thecylindrical bolt 13 with a diameter suiting the cross-section size of theopenings 12a, 12b can be driven through theopenings 12a, 12b, and the length of thebolt 13 is chosen so that thecircular grooves 13a, 13b in the area of its ends are situated slightly outside of the lower and upper surface of thehouse 3, and so thebolt 13 can be fixed in its position in theopenings 12a, 12b with therings 14 shown infigure 1 . Theopenings 12a, 12b and thebolt 13 have a common y longitudinal geometrical central axis. The front side of the upper andlower head parts 10a, 10b of the sliding-tiltinghead 10 of thehouse 3 facing thecase 1, in the middle, is constructed with a flat straightlateral surface 27 ensuring the position of thewing 2 perpendicular to thebase 4, and with curvedlateral surfaces 26 on its two sides. Where thecurved surfaces 26 end on the outer side, atilting point 29 is shown at each place, the role of which will be explained later in the course of describing the operation of the hinge. - In the
base 4 there is a central through opening 17 with a circular cross-section, and thepin 18 connecting thecase 1 with thehouse 3 is driven through it, whichpin 18 is formed by a cylindrical rod with a circular cross-section made of a corrosion-resistant material. Most of it goes inside thecase 1, and its end going in thehouse 3 contains a connectingsleeve 21, which can be constructed in one piece with the rod. The through opening 22 of the connectingsleeve 21 with a circular cross-section also has the y longitudinal geometrical central axis mentioned above, so it is perpendicular to the x longitudinal geometrical central axis of thepin 18, and its diameter is the same as the diameter of theopenings 12a, 12b. The connectingpint 18 has asmooth part 18a starting from the connectingsleeve 21 and a threadedpart 18b extending from the end of the smooth part to the end of thepin 18 going into thecase 1; in the case of the present example thesmooth part 18a and the threadedpart 18b are practically of the same or nearly same length. The connectingpin 18 goes into a nest 39 made for this purpose inside thecase 1, so it is situated in an encircled space together with the spring surrounding it. - As it can be seen especially well in
figure 2 , thesmooth part 18a of thepin 18 is surrounded by acylindrical slide insert 19, which goes through theopening 17 and with its flange 19a running all round it supports onto the external surface of thebase 4 facing thehouse 3, and with its internal cylindrical surface it fits onto thesmooth part 18a of thepin 18 so that thesmooth part 18a can move longitudinally, linearly, in the direction of double arrow back and forth inside the slide insert 19, onto which a spring-guide sleeve 20 made of stainless metal is fitted closely from the outside, and one end of the spring-guide sleeve 20 is welded to the surface of thebase 4 facing thecase 1, or it is made in one piece with it. In this way, in the course of the operation of the hinge - that is the movement of thepin 18 back and forth - the slide insert 19 and the spring-guide sleeve 20 always take the same fixed position in the structure. - Near the end of the threaded
part 18b of thepin 18 there is aflat underplate 24 and a self-locking nut 25. One end of thespring 23 guided by thesleeve 20, constructed as a spiral spring, surrounding the part of thepin 18 going inside thecase 1 supports against theunderplate 24, while the other end supports against the internal side of thebase 4. The force of thespring 23 can be adjusted as necessary by adjusting thenut 25. - At the places where in the course of the operation of the hinge the
base 4 gets in contact with the sliding-tiltinghead 10 of thehouse 3, corrosion-resisting, wear resisting and catch resistinginserts base 4 in a way that their visible surface is in the same plane with the external surface of thebase 4. - It can be seen from the above that the
house 3 holding thewing 2 is both directly and indirectly connected to the supporting structure fixed onto the case. - Below the operation of the swinging door hinge shown in
figures 1 and2 is described on the basis of the diagrammaticfigures 3-5 , in which the same structural elements are marked with the reference numbers used earlier. - As it has been mentioned in the introductory part, food industry swinging doors, including the swinging door according to the invention, must basically fulfil three main functions: ensure the closed condition of the space delimited by it; if a vehicle, e.g.: a fork-lift truck, goes through the door opening, the wing must make it possible for the vehicle by swinging out of its closed position, and when the vehicle has gone through the opening, the wing must swing back into its closed position; finally, in the case of rotating the wing by 90 °C it must stay in the same position until it is pushed back into its closed position by an external force.
- The closed position mentioned first is shown in
figure 3 , where thewing 2 is in one line with thecase 1, and it completely closes the door opening. In this case the straight lateral surfaces 27 of thehead parts 10a, 10b of thehead 10 fit onto thebase 4 and ensure the perpendicular position of the wing to thebase 4. - If the
wing 2 in closed position is opened by a vehicle (not shown) coming from the direction of arrow A shown infigure 4 , thewing 2 rotates in the direction of arrow c, the curved lateral surfaces 26 of thehead parts 10a, 10b slide on theinsert plates tilting point 29 also moves in accordance with the extent of rotation. Infigures 3-5 the vertical geometrical centre-line of the base is marked with reference letter k. It can be seen well infigure 4 that thetilting point 29 does not go over the centre-line k, and from this position It is pushed back by the force of thespring 23 into its original closed position as shown infigure 3 , after the vehicle has gone through the door opening and the force exerted onto the wing in the direction of arrow A has terminated. - If the
wing 2 needs to be kept open for a longer period, it should be rotated in the direction of arrow c shown infigure 4 until thetilting point 29 gets over centre-line k, as a result of which thewing 2 automatically remains fixed; this position is shown infigure 5 , where the distance by which thetilting point 29 moved over centre-line k is marked with reference letter e. - It is a pre-condition of the operation of the hinge described above that the geometrical relations of the structure should comply with the following conditions: the d 1 space between the
tilting point 29 and the longitudinal geometrical mid-plane x 1 of the wing 2 (longitudinal geometrical central axis x falls in this longitudinal geometrical mid-plane x 1 ) must-be larger than the distance d 2 of the longitudinal geometrical central axis y of thebolt 13 connecting thewing 2 to thepin 18 measured from the external surface of the base 4 (figure 3 ). In this case thespring 23 exerts its stressing force onto thewing 2 as it has been described above in connection withfigures 3-5 and as it is shown in the figures, where it can be seen well how the spring is pressed and how it is put under increasing stress while its length b 1 belonging to the closing position shown infigure 3 first decreases to a smaller length b 2 as shown infigure 4 and then it decreases to an even smaller length b 3 suiting the fixed open final position as shown infigure 5 , while an increasingly bigger part of thepin 18 slides over into the space on the other side of thebase 4 containing thewing 2. - If a vehicle goes through the door opening and the wing is open from the opposite direction as shown by arrow A, the
second tilting point 29 situated at the bottom infigure 3 moves on a curved track in the opposite direction as shown by arrow c, and it must be situated on the other side of centre-line k for thewing 2 to remain fixed in its open final position on the other side. - It is a basically important advantage that no wear or catches can take place while the base fixed onto the case and the house holding the door panel slide on each other in the course of the operation of the swinging door, as it can be experienced in the case of presently known structures of a similar purpose, because the insert plates built in on the contact surfaces overcome this danger due to the appropriately chosen material quality. Because of the inappropriate load bearing capacity of such materials the whole hinge cannot be made only of these materials, the rest of the hinge can be made of polishable stainless metal with suitable mechanical and endurance properties, which satisfy the strictest hygienic and aesthetic requirements.
- Heavy-weight swinging door wings can also be suspended with the hinges according to the invention, which is also due to the adjustability of the spring force. The advantage of the hinge according to the invention is that when it rotates by 90 °C, it automatically stays in this position. The simple construction of th ehinge ensures a favourable price and quick assembly.
- Obviously the invention is not restricted to the construction described in detail above on the basis of the drawings, it can be realised in several ways within the sphere of protection defined by the claims.
Claims (7)
- Hinge for doors and windows, especially food industry swinging doors, which has a house (3) receiving the wing (2) of the door or window and a base (4) attached preferably with screws to the surface of the case (1) of the door or window facing the wing (2), which base (4) contains an opening (17) designed for guiding a pin (18) connecting the house (3) and the base (4); in the area of the end of the pin (18) guided in the house (3) through the opening (17) there is a connecting element (21), and the house (3) is connected to the pin (18) by a bolt (13) guided through this connecting element (21), on the side of the house (3) facing the base (4) there is a sliding-tilting head (10), which contains straight lateral surfaces (27) contacting surfaces (15, 16) fitted onto the base (4) and ensuring the perpendicular position of the wing (2) to the base (4), as well as curved lateral surfaces (26) contacting said surfaces (15, 16) fitted onto the base (4) when turning the wing (2), and which can be turned against the force of a spring (23) situated around the part of the pin (18) inside the case (1) and supported at its two ends
the pin (18) has a threaded part (18b) in the area of the end of the pin (18) opposite the connecting element, preferably connecting sleeve (21), and it has a smooth part (18a) starting from the connecting element characterised in that
said contacting surfaces (15, 16) fitted onto the base (4) are constituted of sliding inserts (15, 16) made of a material resistant to wear and catches, preferably plastic, for example Teflon, and are built in the base (4) at places getting in contact with the sliding-tilting head, (10) in the course of rotating the wing (2), whereby the visible surface of the sliding inserts (15, 16) is in the same plane as the external surface of the base (4); and the smooth part (18a) is surrounded at least partly by a cylindrical slide insert (19) made of a material with a low coefficient of friction, favourable plastic, for example Teflon, the position of which is fixed in relation to the base (4), allowing the longitudinal back and forth movement of the pin (18) inside the cylindrical slide insert (19), and by a spring-guide sleeve (20) fitted onto the cylindrical slide insert (19). - Hinge for doors and windows as in claim 1, characterised by that the spring (23) is a spiral spring, the one end of which supports against the surface of the base (4) facing the inside of the case (1) and the other end supports against a favourably flat underplate (24) situated between the end of the spring (23) and a - practically self-locking - nut (25) making it possible to control the spring force.
- Hinge for doors and windows as in claim 1 or 2, characterised by that the slide insert (19) is provided with a flange (19a) supporting onto the base (4) on its side facing the house (3).
- Hinge for doors and windows as in any of claims 1-3, characterised by that a spring-guide sleeve (20) the length of which is suitable for guiding the spring (23) and fits onto the slide insert (19) is stiffly attached to the base (4) or is made in one piece with it.
- Hinge for doors and windows as in any of claims 1-4, characterised by that the sliding-tilting head (10) of the house (3) contains a lower head part (10a) and an upper head part (10b) at a certain distance from each other, and through openings (12a, 12b) of the same diameter are made in them in one line; the connecting element at the end of the pin (18) is formed by a connecting sleeve (21) the longitudinal geometrical central axis y of which is perpendicular to the pin's (18) longitudinal geometrical central axis x; in the operating position of the hinge the through opening (22) of the connecting sleeve (21) is in the same line with the openings (12a, 12b) in the head parts (10a, 10b), its diameter is the same, and the house (3) is connected to the pin (18) with a bolt (13) guided through these openings (12a, 22, 12b).
- Hinge for doors and windows as in any of claims 1-5, characterised by that the front sides of the lower and upper head parts (10a, 10b) of the sliding-tilting head (10) facing the slide inserts (15, 16) of the base (4) contain a flat, straight lateral surface (27) in the middle, a curved lateral surface (26) on both sides and tilting points (29) in the area where the straight lateral side (27) and the flat lateral sides (26) meet.
- Hinge for doors and windows as in any of claims 1-6, characterised by that the distance d 1 of the tilting points (29) of the sliding-tilting head (10) measured from the vertical geometrical mid-plane of the wing (2) is larger than the distance d 2 between the longitudinal geometrical central axis y of the bolt (13) connecting the wing (2) to the pin (18) and the outer plane of the base (4) facing the wing (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU0301529A HU227028B1 (en) | 2003-06-02 | 2003-06-02 | Hinge for doors and windows, particularly for swing doors |
PCT/HU2004/000057 WO2004106677A1 (en) | 2003-06-02 | 2004-05-28 | Hinge for doors and windows, especially food industry swinging doors |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1639219A1 EP1639219A1 (en) | 2006-03-29 |
EP1639219B1 true EP1639219B1 (en) | 2010-05-05 |
Family
ID=89981396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04735276A Expired - Lifetime EP1639219B1 (en) | 2003-06-02 | 2004-05-28 | Hinge for doors and windows, especially food industry swinging doors |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1639219B1 (en) |
AT (1) | ATE467023T1 (en) |
DE (1) | DE602004027040D1 (en) |
HU (1) | HU227028B1 (en) |
WO (1) | WO2004106677A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2684562A1 (en) | 2008-08-08 | 2014-01-15 | Basf Se | Fibre layer with an active substance on the basis of bio-polymers, applications of same and method for their manufacture |
DE102008048769B4 (en) * | 2008-09-24 | 2010-11-11 | Gummi-Stricker Gmbh & Co. Kg | Door hinge for a pendulum or swing door |
CN103982102A (en) * | 2014-05-27 | 2014-08-13 | 佛山市浪鲸洁具有限公司 | Door hinge |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB804584A (en) * | 1956-03-14 | 1958-11-19 | Walter Rowley Ltd | Door hinges |
SE205661C1 (en) * | 1961-06-22 | 1966-06-21 | ||
GB1155978A (en) | 1965-10-28 | 1969-06-25 | Matsushita Electric Ind Co Ltd | Pressure-Responsive Semiconductor Device. |
-
2003
- 2003-06-02 HU HU0301529A patent/HU227028B1/en not_active IP Right Cessation
-
2004
- 2004-05-28 EP EP04735276A patent/EP1639219B1/en not_active Expired - Lifetime
- 2004-05-28 WO PCT/HU2004/000057 patent/WO2004106677A1/en active Application Filing
- 2004-05-28 DE DE602004027040T patent/DE602004027040D1/en not_active Expired - Fee Related
- 2004-05-28 AT AT04735276T patent/ATE467023T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE467023T1 (en) | 2010-05-15 |
HU227028B1 (en) | 2010-05-28 |
EP1639219A1 (en) | 2006-03-29 |
HU0301529D0 (en) | 2003-08-28 |
DE602004027040D1 (en) | 2010-06-17 |
WO2004106677A1 (en) | 2004-12-09 |
HUP0301529A2 (en) | 2005-01-28 |
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