EP4361391A1 - Compact spring unit and latch device for a hinge system - Google Patents
Compact spring unit and latch device for a hinge system Download PDFInfo
- Publication number
- EP4361391A1 EP4361391A1 EP23204561.7A EP23204561A EP4361391A1 EP 4361391 A1 EP4361391 A1 EP 4361391A1 EP 23204561 A EP23204561 A EP 23204561A EP 4361391 A1 EP4361391 A1 EP 4361391A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- latch device
- support element
- latching
- compact
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000004873 anchoring Methods 0.000 claims description 29
- 239000000428 dust Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E05D15/00—Suspension arrangements for wings
- E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
- E05D15/46—Suspension arrangements for wings supported on arms movable in vertical planes with two pairs of pivoted arms
- E05D15/463—Suspension arrangements for wings supported on arms movable in vertical planes with two pairs of pivoted arms specially adapted for overhead wings
-
- 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
- E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
- E05D15/44—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and vertically-sliding guides
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/12—Counterbalance devices with springs
- E05D13/123—Counterbalance devices with springs with compression springs
- E05D13/1246—Spring safety devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/32—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of two or more pivoted rods
- E05C17/34—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of two or more pivoted rods with means for holding in more than one position
-
- 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
- E05D11/1007—Devices for preventing movement between relatively-movable hinge parts with positive locking
-
- 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
- E05D15/28—Suspension arrangements for wings supported on arms movable in horizontal plane
- E05D15/30—Suspension arrangements for wings supported on arms movable in horizontal plane with pivoted arms and sliding guides
-
- 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
- E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
- E05D15/46—Suspension arrangements for wings supported on arms movable in vertical planes with two pairs of pivoted arms
- E05D15/466—Suspension arrangements for wings supported on arms movable in vertical planes with two pairs of pivoted arms specially adapted for windows
-
- 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
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/404—Function thereof
- E05Y2201/418—Function thereof for holding
-
- 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
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/47—Springs
- E05Y2201/474—Compression springs
-
- 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
- E05Y2900/148—Windows
Definitions
- the invention relates to a compact spring unit for a latch device also known as a safety latch, safety catch, restrictor, retainer or safety lock for restricting movement of a movable components in a hinge system such as a window hinge or a door hinge.
- a latch device also known as a safety latch, safety catch, restrictor, retainer or safety lock for restricting movement of a movable components in a hinge system such as a window hinge or a door hinge.
- a vast number of window hinge systems are available in the market today.
- a particular type of hinge system allows a window sash to extend away from the wall (and the window frame) and/or to pivot or tilt 180 degrees for facilitating cleaning and maintenance of the outdoor window surface.
- Such extendable hinges are also used for easily opening a window and for providing ventilation of a certain degree.
- An extendable hinge is described in the international patent application WO2003021066A1 .
- hinges are often equipped with a restrictor or safety catch to prevent the window sash from moving outwards to its extended position.
- the safety catch may still allow a small gap between the sash and the frame, and movement between the latching position and a completely closed position, while in its latching position.
- Safety catches for extendable hinges also exist in a variety of designs. Safety catches are usually lifted upwards or sideways (depending on its orientation) to a releasing position to release the hinge.
- a safety catch may be spring biased to automatically return to its original position after it is moved to its releasing position.
- assembly of the spring may be time consuming and complex. It is common to use tension springs which has to be stretched between two connection points and latched onto to the connection points. The spring used is usually quite small, which makes the operation difficult for the human hand.
- the safety catch is also mounted in a narrow / confined space. This makes assembly slow and ineffective.
- the current invention seeks to provide a product and a simplified way of providing a spring force to a safety catch which makes assembly quicker, easier and more cost-effective.
- the invention relates to a compact spring unit including a spring, a first spring support element, a second spring support element, wherein the spring is at a first end connected to a first spring receiving portion of the first spring support element, wherein the spring is at a second end connected to a second spring receiving portion of the second spring support element and wherein the first spring support element is moveably connected to the second spring support element.
- the first spring support element and the second spring support element are moveable along the centre axis of the spring and configured to compress the spring when moved against each other.
- the invention further relates to said spring unit, wherein the first spring support element comprises at least one flexible latching means and the second spring support element comprises at least one latching edge for receiving the flexible latching means, thereby providing means for moveably connecting the first spring support element to the second spring support element.
- the invention further relates to said spring unit comprising a spring tunnel portion for containing the spring and for providing axial stability to the spring.
- the invention further relates to said spring unit, wherein the second spring support element comprises flexible latching means for connecting the compact spring unit to an external frame structure such as a latch device body.
- the invention further relates to said spring unit, wherein the first spring support element comprises guiding means for engaging the inner surface of the spring tunnel portion.
- the invention further relates to said spring unit, wherein the first spring support element comprises a curved portion at one end for receiving a first anchoring means.
- the invention further relates to said spring unit, including a cover plate comprising a groove for guiding the spring.
- the invention relates to a latch device also referred to as a latch device for preventing movement between relatively-movable hinge parts.
- the invention also relates to a corresponding latch device for an extendable hinge for doors or windows including a latch device body, a said compact spring unit, a first guiding slot for receiving and moveably connecting the latch device to a first anchoring means connected directly or indirectly to a window frame, and for receiving the compact spring unit, wherein the latch device is moveable between a first releasing position and a second latching position, wherein the compact spring unit is configured to apply a spring force against the first anchoring means when the latch device is in the first releasing position, and latch device latching means for receiving and latching onto at least one hinge arm via respective hinge arm latching means, thereby retaining the at least one hinge arm.
- the invention further relates to said latch device further including a second guiding slot for receiving and moveably connecting the latch device to a second anchoring means connected directly or indirectly to a window frame.
- the invention further relates to said latch device, wherein one of the latch device latching means is a latching hook and the respective hinge arm latching means is a protrusion.
- the invention also relates to an extendable hinge for moving a window or door between a retracted and an extended position, including said latch device, at least one hinge arm, a first anchoring means for moveably connecting the latch device to a window frame or a support element, wherein each hinge arm comprises a hinge arm latching means, wherein the latch device is moveable between an releasing position and a latching position and wherein when the latch device is in the latching position, the latch device being configured to latch onto the hinge arm latching means by means of the latch device latching means and thereby retain the at least one hinge arm, and wherein when the latch device is in the releasing position, the latch device is configured to release the arm latching means and thereby also release the at least one hinge arm, wherein when the latch device is moved between the releasing position and the latching position the compact spring unit excites a spring force between the first anchoring means and the latch device so that the latch device is forced towards the latching position.
- the invention also relates to assembling a latch device according to any of the preceding claims, comprising the steps of inserting a first anchoring means into the first guiding slot, inserting a compact spring unit into the first guiding slot.
- the invention also relates to said method, further comprising the steps of inserting second anchoring means into a second guiding slot.
- the invention further relates to a use of a said compact spring unit in a hinge system for doors or windows.
- the invention further relates to a use of a said compact spring unit in an abovementioned latch unit.
- Fig. 1 is a perspective view of a hinge 8 according to the invention.
- the hinge 8 depicted in Fig. 1 is primarily intended for windows.
- the hinge 8 is typically located between the window frame (not shown) and the window sash (not shown).
- the hinge 8 is typically connected at one end to a window sash (not shown) and connected at another end to a window frame (not shown) also called casing.
- two hinges 8 may be provided at two sides of the window sash (not shown).
- the hinge 8 is located in a narrow space between the sash (not shown) and the frame (not shown), and in such embodiment the hinge 8 is preferably at least partly comprised of flat or slender components.
- the hinge 8 includes at least one hinge arm 10 connected at one connection point to the sash (not shown).
- the connection point may be a pin pivotally connected to the sash so that the sash can tilt or pivot relative to the hinge arm 10 while being supported by the hinge arm 10.
- the hinge 8 may further include a second hinge arm 11 and/or a third hinge arm 20 connected to the first hinge arm 10 to extend the reach of the first hinge arm and/or to provide support to the first hinge arm 10.
- the hinge 8 may further comprise a support element 12.
- the first hinge arm 10 may be connected to the frame (not shown) or the support element 12 directly or via the second hinge arm 11 and/or the third hinge arm 20.
- the hinge arms 10, 11, 20 may be rotatably connected to each other.
- the hinge arms 10, 11, 20 may be rotatably connected to the frame (not shown) or the support element 12.
- the support element 12 may be a single elongated rail provided with several connection points for attaching the support element 12 to the frame (not shown).
- the hinge arms 10, 11, 20 may be pivotally connected to the support element 12 or to the frame (not shown) through the support element.
- the support element 12 also serves as a placeholder for connection points.
- Each component of the hinge 8 descripted herein may be formed of any of metal, plastic or composite materials.
- the hinge 8 further includes a latch device 9 for locking, latching or retaining the hinge arms preventing them from reaching their extended position.
- a latch device 9 may also be known as a safety latch, restrictor, retainer or safety lock in prior art.
- the latch device 9 may be of any form.
- the latch device 9 is preferably a slender plate-like structure, substantially flat to fit in a narrow gap between a sash and a frame.
- the hinge arms 10, 11, 20 acts as a support-arms for the window or door sash.
- the hinge arms 10, 11, 20 are extendable and retractable.
- the hinge arms 10, 11, 20 is configured to support and move the window or window sash or door between an extended position and a retracted position.
- the hinge arms 10, 11, 20 may be restricted by a safety latch device 9 which will be further explained.
- two hinges 8 are provided at two opposite vertical sides of a window sash (not shown) wherein the sash is rotatably connected to both hinge arms 10.
- the hinge arms 10 can be indirectly connected to an inside of the window frame.
- the hinge arms 10 may pivot away from the wall and the window frame (not shown).
- the sash may via the hinge arms 10 be extended in a direction away from the frame, tilted about at least one axis and positioned away from the wall.
- the hinge system 8 is useful for providing a larger ventilation gap and can be used for providing an exit out of a building.
- the hinge system 8 allows the window sash to be tilted 180 degrees so that the user can reach the front window surface from inside the building, e.g. for cleaning or maintenance.
- FIG. 2A and 2B are perspective views of a latch device 9 mounted on a hinge 8 according to the invention.
- Fig. 2A shows the front side of latch device 9.
- Fig. 2B shows the back side of the latch device 9.
- parts of the support element 12 is cut out.
- the back side of the latch device 9 typically faces the inside of the window/door frame, and the front side of the latch device 9 typically faces the window or door sash when the door or window is locked.
- the latch device 9 is mounted and configured to interact with components of the hinge 8, more specifically to retain the hinge arms 10, 11 in a retracted position preventing them from pivoting away from the wall to an extended position.
- the latch device 9 may still allow the hinge 8 some movement in the retracted position, so that the user may open the window or door slightly, and move the hinge arms 10,11 and thereby also the sash (not shown) between a completely closed position and the position wherein the hinge arms are in the retracted position.
- the latch device 9 is primarily intended for window hinges having rotatable and/or extendable arms such as the hinge system described above but can in principle be used for many different lock systems for objects such as doors, garage doors, lids, trap doors, appliances and furniture.
- the latch device 9 can be used for any hinge or lock mechanism or the like having movable components which movement must be restricted. Its purpose may be restricting movement of components for safety reasons or merely for adjusting or retaining or restricting the movement or position of a component.
- the latch device body 100 may be of any form.
- the latch device body 100 is preferably a slender plate-like structure made of metal or plastic or composite material, substantially flat to fit in a narrow gap between a sash and a frame.
- the latch device body 100 has a substantially oblong shape.
- the latch device 9 is oriented upright.
- the latch device 9 is in the latching position, also referred to as a locking position or retaining position.
- the latch device 9 is latched onto the hinge arms 10, 11 and the hinge arms 10, 11 are thus in their retracted position.
- the latch device body 100 typically spans wider and includes a latching portion.
- the latching portion includes at least one latching means 114.
- a first latch device latching means 114 may be located at one side of the latching portion.
- the first latch device latching means 114 may be a curved, hook-shaped portion to hook or catch a corresponding hinge arm latching means 14 located on a first hinge arm 10.
- the hinge arm latching means 14 may be a protrusion, preferably cylindrical.
- the first latch device latching means 114 includes an inclined surface on its outer side (right side in Fig. 2B ).
- the inclined surface provides a vertical force component to the latch device 9 when the hinge arm latching means 14 is pushed against the inclined surface, thereby lifting the latch device 9 so that the hinge arm latching means 114 can slip under and rest against the inner surface of the latch device latching means 114.
- a second latch device latching means 113 may be located at the opposite side of the latch device latching means 114.
- the second latch device latching means 113 may be a curved portion extending downwards providing a supporting edge or surface for receiving the top end of a second hinge arm 11.
- the top end of the second hinge arm 11 itself may be considered a second hinge arm latching means 15.
- the latch device 9 includes at least one first guiding slot 101 i.e. a slotted hole or openings.
- the first guiding slot 101 may be of any shape, preferably an elongated shaped, preferably the same shape as an outer edge of a spring unit 200 which will be further explained.
- the first guiding slot 101 is typically cut out of the latch device body 100.
- the first guiding slot 101 may have different shapes to fit the outline or edge of the compressible compact spring unit 400.
- the compact spring unit 400 itself acts as a compression spring.
- the first guiding slot 101 is shaped to receive and house both an anchoring means 111 and the compact spring unit 400, the two abutting each other directly or indirectly.
- the compact spring unit 400 may be easily fixed to the latch device body 100 by means of second flexible latching means 204 (see Fig. 3C ).
- the latch device 9 may be moveably or slidably connected to the support element 12 or directly to the frame (not shown) via at least one anchoring means 111.
- the anchoring means 111 may be a rivet, button, nail, pin, bolt or a similar boltshaped element having a slender cylindrical portion as seen in Fig. 2B and a larger head portion with a wider diameter or larger circumference as seen in Fig. 2A .
- the slender cylindrical portion of the anchoring means 111 is preferably substantially equal or smaller than the width of the first guiding slot 101 so that it may slide along the first guiding slot 101 longitudinal axis. This allows the latch device 9 to move/travel/slide relative to the anchoring means 111 along the longitudinal axis of the first guiding slot and along a path between a latching position and a releasing position.
- the head portion of the anchoring means 111 has a wider diameter/width than a width of the first guiding slot 101, thus overlapping the first guiding slot 101, which prevent the latch device 9 from escaping or falling off the anchoring means 111.
- the latch device 100 may optionally comprise a second guiding slot 112 for guiding a second anchoring means 110 and thereby also the latch device 9.
- the second guiding slot 112 is configured to receiving and moveably connecting the latch device 9 to a second anchoring means 110 connected to a window frame or a support element 12.
- the second guiding slot 112 may comprise a curved portion or be substantially L-shaped.
- the second guiding slot 112 may comprise a substantially horizontal portion wherein the second anchoring means 110 may rest while the latch device 9 is in the releasing position.
- the second guiding slot 112 ensures that the latch device 9 is forced to rotate when lifted, but also allows the latch device 9 to momentarily rest in the releasing position against the second anchoring means 110.
- the latch device 9 is moveably between a first releasing position and a second latching position.
- the latch device 9 is placed in the releasing position by lifting the latch device 9 upwards.
- the latching position is in the opposite direction.
- the latch device 9 is placed in the latching position automatically because the latch device 9 is spring biased and may furthermore be prone to a gravitational force directed towards the latching position.
- a counter-acting potential energy is built up by a spring force and by gravitation.
- the latch device 9 is forced back to the lower latching position.
- the spring force is activated by compressing the compact spring unit 400 which excites a counter force when compressed.
- the latch device 9 is configured to also function in a non-vertical or horizontal axis, or even upside down vertically, as the spring force obtained is higher than the weight / force of gravity of the latch device 9.
- Fig. 3A is an exploded perspective view of a compact spring unit 400 according to the invention.
- the compact spring unit 400 includes a first spring support element 300, a second spring support element 200 and a spring 500.
- the compact spring unit 400 acts as and may be referred to as a compressible spring container or spring package.
- the spring 500 is preferably a helical metal, composite or plastic coiled compression spring.
- the spring 500 may consist of several springs connected in series.
- the first spring support element 300 includes a first spring receiving portion 302 adapted to receive and support one end of a spring 500.
- the first spring receiving portion 302 may be shaped as a cylindrical protrusion having a diameter smaller, equal or corresponding to the inner diameter of the cylindrical coil spring 500.
- the coil spring 500 may therefore be fitted on top of and around the first spring receiving portion 302 which holds the spring in place. This facilitates mounting and assembly.
- the first spring support element 300 may have a rounded shape at one end (top end in Fig. 3A ) for easily pivoting around a round part of the first anchoring means 111 (see Fig. 2A ).
- the first spring support element 300 may include guiding means 301 for engaging an inner surface of a spring tunnel portion 203 of the second spring support element 200.
- the guiding means 301 may be a plurality of spaced apart protrusions on both sides of the first spring support element 300.
- the guiding means 301 are shaped to correspond with the inner surface of a spring tunnel portion 203 and/or a cover plate guiding groove 211.
- the guiding means 301 protrusions may be semi-circular, partially torus-shaped, square, rectangular, cubical, curved or partially round-edged protrusions.
- the guiding means 301 serve to provide axially stable movement of the first spring support element 300 while moving inside the second spring support element 200.
- the protrusions are advantageously edged so that dust particles don't stick to the outer surface of the guiding means 301, trapping dust particles between the spring tunnel portion 203 and the guiding means 301.
- the second spring support element 200 may include a spring tunnel portion 203 and a second spring receiving portion 202.
- the spring tunnel portion 203 is configured to house and at least partly surround the spring 500 preventing the spring from bending outwards or out of its centre axis, thereby providing axial support to the spring.
- the inside of the spring tunnel portion 203 may be substantially semi-cylindrical, rounded or any shape corresponding to the shape of the spring 500 or the shape of the guiding means 301.
- the second spring support element 200 may include a support housing 220.
- the spring tunnel portion 203 may be a part of the support housing 220.
- the support housing 220 may have two side openings or slots 221, 221'.
- the side slots 221, 221' have two upper edges (facing downwards in Fig. 3A ) advantageously serving as latching edges 230, 230'.
- the spring unit 400 may be operational in a dusty/moist environment.
- the side slots 221, 221' advantageously provides a ventilated openings for preventing dust particles and moisture from getting trapped inside the second spring support unit 200 while at the same time providing latching edges 230, 230'.
- the second spring receiving portion 202 is configured to receive an opposite end of the spring 500 and serves as and may be referred to as a spring stop.
- the spring 500 is preferably sufficiently long to reach both the first and second spring receiving portion 302, 202 when the spring unit 400 is assembled.
- the second spring support element 200 may include a cover plate 210.
- the cover plate 210 may span wider and/or serve as a support plate for the support housing 220.
- the cover plate 210 advantageously hides and protects the back portion of the second spring support element. This is advantageously aesthetic as seen in Fig. 2A . It also serves the purpose of shielding the spring 500 and its surrounding components from dust, moisture and water which may rust a metal spring.
- the cover plate 210 or the second spring support element 200 may include second flexible latching means 204 for latching onto the latch device body 100 first guiding slot 101 (see Fig. 2B ) thereby providing a connection for fixing the second spring support element 200 to the latch device body 100.
- the second flexible latching means 204 may be in principle a standard plastic clip or snap lock.
- the spring tunnel portion 203 may cover or at least partially surround a first side of the spring 500.
- a cover plate 210 may cover or at least partially surround the other side of the spring.
- the spring tunnel portion 203 and the cover plate 210 may together form a channel or boring or tunnel for the spring 500.
- the cover plate 210 may include a longitudinal groove 211 or recess for guiding the spring and for providing a curved surface corresponding to the outer surface of the spring 500.
- the first spring support element 300 may include two first flexible latching means 303, 303' such as spears or prongs extending out from the first spring support element 300 body.
- the spear tips include a rear facing catching edge surface serving in principle as a hook.
- the first spring support element 300 may be inserted into the second spring support element 200. While inserting, the first flexible latching means 303 engages the support housing 220 and bends inwards. The first flexible latching means 303 are spaced apart corresponding to the first open end of the support housing 220. The two latching means 303, 303' are configured to respectively latch onto the two latching edges 230, 230' thereby connecting the spring support element 300, 200.
- Fig. 3B is a transparent perspective view of the compressible compact spring unit 400 in an assembled state.
- Fig. 3B shows how the spring 500 is located between the first spring support element 300 and the second spring support element 200.
- the spring 500 does not need to be pre-biased in its initial position. This makes assembly quite easy.
- the spring unit 400 is assembled by inserting the spring intro the tunnel portion 203 and thereby inserting the first spring support element 300 into the second spring support element 200 sandwiching the spring 500 between the first and second spring receiving portions.
- Fig. 3C is a perspective view of the flexible latching means of the second support element 200 including a detail cross-section of the latching means.
- the second flexible latching means 204 is engaged with the first guiding slot 101 as can be seen from the detail cross-section.
- the second spring support element 200 is pressed onto the latch device body 100 the second flexible latching means 204 latches onto / clips on to the first guiding slot 101. This provides easy assembly of a spring unit 400 compared to more complex prior art disclosed in the background section.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention relates to a compact spring unit for providing a spring force to a latch device, also referred to as a safety catch. The invention may be used for, but is not limited to doors or windows. The safety catch is a part of an extendable hinge system. The invention further relates to a method of easily and effectively assembling the latch device.
Description
- The invention relates to a compact spring unit for a latch device also known as a safety latch, safety catch, restrictor, retainer or safety lock for restricting movement of a movable components in a hinge system such as a window hinge or a door hinge.
- A vast number of window hinge systems are available in the market today. A particular type of hinge system allows a window sash to extend away from the wall (and the window frame) and/or to pivot or tilt 180 degrees for facilitating cleaning and maintenance of the outdoor window surface. Such extendable hinges are also used for easily opening a window and for providing ventilation of a certain degree. An extendable hinge is described in the international patent application
WO2003021066A1 . - These hinges are often equipped with a restrictor or safety catch to prevent the window sash from moving outwards to its extended position. The safety catch may still allow a small gap between the sash and the frame, and movement between the latching position and a completely closed position, while in its latching position.
- Safety catches for extendable hinges also exist in a variety of designs. Safety catches are usually lifted upwards or sideways (depending on its orientation) to a releasing position to release the hinge.
- A safety catch may be spring biased to automatically return to its original position after it is moved to its releasing position. For spring biased safety catches, assembly of the spring may be time consuming and complex. It is common to use tension springs which has to be stretched between two connection points and latched onto to the connection points. The spring used is usually quite small, which makes the operation difficult for the human hand. The safety catch is also mounted in a narrow / confined space. This makes assembly slow and ineffective.
- The current invention seeks to provide a product and a simplified way of providing a spring force to a safety catch which makes assembly quicker, easier and more cost-effective.
- The invention relates to a compact spring unit including a spring, a first spring support element, a second spring support element, wherein the spring is at a first end connected to a first spring receiving portion of the first spring support element, wherein the spring is at a second end connected to a second spring receiving portion of the second spring support element and wherein the first spring support element is moveably connected to the second spring support element. The first spring support element and the second spring support element are moveable along the centre axis of the spring and configured to compress the spring when moved against each other.
- The invention further relates to said spring unit, wherein the first spring support element comprises at least one flexible latching means and the second spring support element comprises at least one latching edge for receiving the flexible latching means, thereby providing means for moveably connecting the first spring support element to the second spring support element.
- The invention further relates to said spring unit comprising a spring tunnel portion for containing the spring and for providing axial stability to the spring.
- The invention further relates to said spring unit, wherein the second spring support element comprises flexible latching means for connecting the compact spring unit to an external frame structure such as a latch device body.
- The invention further relates to said spring unit, wherein the first spring support element comprises guiding means for engaging the inner surface of the spring tunnel portion.
- The invention further relates to said spring unit, wherein the first spring support element comprises a curved portion at one end for receiving a first anchoring means.
- The invention further relates to said spring unit, including a cover plate comprising a groove for guiding the spring.
- The invention relates to a latch device also referred to as a latch device for preventing movement between relatively-movable hinge parts.
- The invention also relates to a corresponding latch device for an extendable hinge for doors or windows including a latch device body, a said compact spring unit, a first guiding slot for receiving and moveably connecting the latch device to a first anchoring means connected directly or indirectly to a window frame, and for receiving the compact spring unit, wherein the latch device is moveable between a first releasing position and a second latching position, wherein the compact spring unit is configured to apply a spring force against the first anchoring means when the latch device is in the first releasing position, and latch device latching means for receiving and latching onto at least one hinge arm via respective hinge arm latching means, thereby retaining the at least one hinge arm.
- The invention further relates to said latch device further including a second guiding slot for receiving and moveably connecting the latch device to a second anchoring means connected directly or indirectly to a window frame.
- The invention further relates to said latch device, wherein one of the latch device latching means is a latching hook and the respective hinge arm latching means is a protrusion.
- The invention also relates to an extendable hinge for moving a window or door between a retracted and an extended position, including said latch device, at least one hinge arm, a first anchoring means for moveably connecting the latch device to a window frame or a support element, wherein each hinge arm comprises a hinge arm latching means, wherein the latch device is moveable between an releasing position and a latching position and wherein when the latch device is in the latching position, the latch device being configured to latch onto the hinge arm latching means by means of the latch device latching means and thereby retain the at least one hinge arm, and wherein when the latch device is in the releasing position, the latch device is configured to release the arm latching means and thereby also release the at least one hinge arm, wherein when the latch device is moved between the releasing position and the latching position the compact spring unit excites a spring force between the first anchoring means and the latch device so that the latch device is forced towards the latching position.
- The invention also relates to assembling a latch device according to any of the preceding claims, comprising the steps of inserting a first anchoring means into the first guiding slot, inserting a compact spring unit into the first guiding slot.
- The invention also relates to said method, further comprising the steps of inserting second anchoring means into a second guiding slot.
- The invention further relates to a use of a said compact spring unit in a hinge system for doors or windows.
- The invention further relates to a use of a said compact spring unit in an abovementioned latch unit.
-
-
Fig. 1 is a perspective view of a hinge system according to the invention; -
Fig. 2A and 2B are perspective views of a latch device according to the invention, mounted to a hinge system according to the invention.Fig. 2A shows the front side of latch device.Fig. 2B shows the back side of the latch device; -
Fig. 3A is an exploded perspective view of a compact spring unit according to the invention; -
Fig. 3B is a transparent perspective view of the compact spring unit in an assembled state; and -
Fig. 3C is a perspective view of the flexible latching means of a second support element including a detailed cross-section of the latching means. -
Fig. 1 is a perspective view of ahinge 8 according to the invention. Thehinge 8 depicted inFig. 1 is primarily intended for windows. - The
hinge 8 is typically located between the window frame (not shown) and the window sash (not shown). Thehinge 8 is typically connected at one end to a window sash (not shown) and connected at another end to a window frame (not shown) also called casing. - For windows, two
hinges 8 may be provided at two sides of the window sash (not shown). Preferably thehinge 8 is located in a narrow space between the sash (not shown) and the frame (not shown), and in such embodiment thehinge 8 is preferably at least partly comprised of flat or slender components. - The
hinge 8 includes at least onehinge arm 10 connected at one connection point to the sash (not shown). The connection point may be a pin pivotally connected to the sash so that the sash can tilt or pivot relative to thehinge arm 10 while being supported by thehinge arm 10. - The
hinge 8 may further include asecond hinge arm 11 and/or athird hinge arm 20 connected to thefirst hinge arm 10 to extend the reach of the first hinge arm and/or to provide support to thefirst hinge arm 10. Thehinge 8 may further comprise asupport element 12. - The
first hinge arm 10 may be connected to the frame (not shown) or thesupport element 12 directly or via thesecond hinge arm 11 and/or thethird hinge arm 20. Thehinge arms hinge arms support element 12. - The
support element 12 may be a single elongated rail provided with several connection points for attaching thesupport element 12 to the frame (not shown). Thehinge arms support element 12 or to the frame (not shown) through the support element. Thesupport element 12 also serves as a placeholder for connection points. - Each component of the
hinge 8 descripted herein may be formed of any of metal, plastic or composite materials. - The
hinge 8 further includes alatch device 9 for locking, latching or retaining the hinge arms preventing them from reaching their extended position. Alatch device 9 may also be known as a safety latch, restrictor, retainer or safety lock in prior art. - The
latch device 9 may be of any form. Thelatch device 9 is preferably a slender plate-like structure, substantially flat to fit in a narrow gap between a sash and a frame. - The
hinge arms hinge arms hinge arms - The
hinge arms safety latch device 9 which will be further explained. - In an embodiment two
hinges 8 are provided at two opposite vertical sides of a window sash (not shown) wherein the sash is rotatably connected to both hingearms 10. Thehinge arms 10 can be indirectly connected to an inside of the window frame. Thehinge arms 10 may pivot away from the wall and the window frame (not shown). The sash may via thehinge arms 10 be extended in a direction away from the frame, tilted about at least one axis and positioned away from the wall. Thehinge system 8 is useful for providing a larger ventilation gap and can be used for providing an exit out of a building. Also, thehinge system 8 allows the window sash to be tilted 180 degrees so that the user can reach the front window surface from inside the building, e.g. for cleaning or maintenance. -
Fig. 2A and 2B are perspective views of alatch device 9 mounted on ahinge 8 according to the invention.Fig. 2A shows the front side oflatch device 9.Fig. 2B shows the back side of thelatch device 9. InFig. 2B parts of thesupport element 12 is cut out. The back side of thelatch device 9 typically faces the inside of the window/door frame, and the front side of thelatch device 9 typically faces the window or door sash when the door or window is locked. - The
latch device 9 is mounted and configured to interact with components of thehinge 8, more specifically to retain thehinge arms latch device 9 may still allow thehinge 8 some movement in the retracted position, so that the user may open the window or door slightly, and move thehinge arms - The
latch device 9 is primarily intended for window hinges having rotatable and/or extendable arms such as the hinge system described above but can in principle be used for many different lock systems for objects such as doors, garage doors, lids, trap doors, appliances and furniture. Thelatch device 9 can be used for any hinge or lock mechanism or the like having movable components which movement must be restricted. Its purpose may be restricting movement of components for safety reasons or merely for adjusting or retaining or restricting the movement or position of a component. - The
latch device body 100 may be of any form. Thelatch device body 100 is preferably a slender plate-like structure made of metal or plastic or composite material, substantially flat to fit in a narrow gap between a sash and a frame. - In the embodiment of
Fig. 2A and 2B thelatch device body 100 has a substantially oblong shape. InFig. 2A and 2B thelatch device 9 is oriented upright. InFig. 2A and 2B thelatch device 9 is in the latching position, also referred to as a locking position or retaining position. Thelatch device 9 is latched onto thehinge arms hinge arms - At its lower end the
latch device body 100 typically spans wider and includes a latching portion. The latching portion includes at least one latching means 114. A first latch device latching means 114 may be located at one side of the latching portion. The first latch device latching means 114 may be a curved, hook-shaped portion to hook or catch a corresponding hinge arm latching means 14 located on afirst hinge arm 10. The hinge arm latching means 14 may be a protrusion, preferably cylindrical. The first latch device latching means 114 includes an inclined surface on its outer side (right side inFig. 2B ). The inclined surface provides a vertical force component to thelatch device 9 when the hinge arm latching means 14 is pushed against the inclined surface, thereby lifting thelatch device 9 so that the hinge arm latching means 114 can slip under and rest against the inner surface of the latch device latching means 114. - A second latch device latching means 113, see
Fig. 2A , may be located at the opposite side of the latch device latching means 114. The second latch device latching means 113 may be a curved portion extending downwards providing a supporting edge or surface for receiving the top end of asecond hinge arm 11. The top end of thesecond hinge arm 11 itself may be considered a second hinge arm latching means 15. - The
latch device 9 includes at least onefirst guiding slot 101 i.e. a slotted hole or openings. Thefirst guiding slot 101 may be of any shape, preferably an elongated shaped, preferably the same shape as an outer edge of aspring unit 200 which will be further explained. Thefirst guiding slot 101 is typically cut out of thelatch device body 100. - The
first guiding slot 101 may have different shapes to fit the outline or edge of the compressiblecompact spring unit 400. Thecompact spring unit 400 itself acts as a compression spring. - The
first guiding slot 101 is shaped to receive and house both an anchoring means 111 and thecompact spring unit 400, the two abutting each other directly or indirectly. - The
compact spring unit 400 may be easily fixed to thelatch device body 100 by means of second flexible latching means 204 (seeFig. 3C ). - The
latch device 9 may be moveably or slidably connected to thesupport element 12 or directly to the frame (not shown) via at least one anchoring means 111. - The anchoring means 111 may be a rivet, button, nail, pin, bolt or a similar boltshaped element having a slender cylindrical portion as seen in
Fig. 2B and a larger head portion with a wider diameter or larger circumference as seen inFig. 2A . The slender cylindrical portion of the anchoring means 111 is preferably substantially equal or smaller than the width of thefirst guiding slot 101 so that it may slide along thefirst guiding slot 101 longitudinal axis. This allows thelatch device 9 to move/travel/slide relative to the anchoring means 111 along the longitudinal axis of the first guiding slot and along a path between a latching position and a releasing position. The head portion of the anchoring means 111 has a wider diameter/width than a width of thefirst guiding slot 101, thus overlapping thefirst guiding slot 101, which prevent thelatch device 9 from escaping or falling off the anchoring means 111. - The
latch device 100 may optionally comprise asecond guiding slot 112 for guiding a second anchoring means 110 and thereby also thelatch device 9. Thesecond guiding slot 112 is configured to receiving and moveably connecting thelatch device 9 to a second anchoring means 110 connected to a window frame or asupport element 12. - The
second guiding slot 112 may comprise a curved portion or be substantially L-shaped. Thesecond guiding slot 112 may comprise a substantially horizontal portion wherein the second anchoring means 110 may rest while thelatch device 9 is in the releasing position. Thesecond guiding slot 112 ensures that thelatch device 9 is forced to rotate when lifted, but also allows thelatch device 9 to momentarily rest in the releasing position against the second anchoring means 110. - The
latch device 9 is moveably between a first releasing position and a second latching position. In the embodiments depicted in the figures, thelatch device 9 is placed in the releasing position by lifting thelatch device 9 upwards. The latching position is in the opposite direction. Thelatch device 9 is placed in the latching position automatically because thelatch device 9 is spring biased and may furthermore be prone to a gravitational force directed towards the latching position. By first lifting the latch device 9 a counter-acting potential energy is built up by a spring force and by gravitation. By releasing thelatch device 9 while in the releasing position, thelatch device 9 is forced back to the lower latching position. - The spring force is activated by compressing the
compact spring unit 400 which excites a counter force when compressed. - The
latch device 9 is configured to also function in a non-vertical or horizontal axis, or even upside down vertically, as the spring force obtained is higher than the weight / force of gravity of thelatch device 9. -
Fig. 3A is an exploded perspective view of acompact spring unit 400 according to the invention. - The
compact spring unit 400 includes a firstspring support element 300, a secondspring support element 200 and aspring 500. Thecompact spring unit 400 acts as and may be referred to as a compressible spring container or spring package. Thespring 500 is preferably a helical metal, composite or plastic coiled compression spring. Thespring 500 may consist of several springs connected in series. - The first
spring support element 300 includes a firstspring receiving portion 302 adapted to receive and support one end of aspring 500. The firstspring receiving portion 302 may be shaped as a cylindrical protrusion having a diameter smaller, equal or corresponding to the inner diameter of thecylindrical coil spring 500. Thecoil spring 500 may therefore be fitted on top of and around the firstspring receiving portion 302 which holds the spring in place. This facilitates mounting and assembly. - The first
spring support element 300 may have a rounded shape at one end (top end inFig. 3A ) for easily pivoting around a round part of the first anchoring means 111 (seeFig. 2A ). - The first
spring support element 300 may include guiding means 301 for engaging an inner surface of aspring tunnel portion 203 of the secondspring support element 200. The guiding means 301 may be a plurality of spaced apart protrusions on both sides of the firstspring support element 300. The guiding means 301 are shaped to correspond with the inner surface of aspring tunnel portion 203 and/or a coverplate guiding groove 211. The guiding means 301 protrusions may be semi-circular, partially torus-shaped, square, rectangular, cubical, curved or partially round-edged protrusions. The guiding means 301 serve to provide axially stable movement of the firstspring support element 300 while moving inside the secondspring support element 200. Also, they serve to guide the firstspring support element 300 while also reducing friction opposed to a continuous cylinder creating friction against a cylindrical tunnel. The protrusions are advantageously edged so that dust particles don't stick to the outer surface of the guiding means 301, trapping dust particles between thespring tunnel portion 203 and the guiding means 301. - The second
spring support element 200 may include aspring tunnel portion 203 and a secondspring receiving portion 202. Thespring tunnel portion 203 is configured to house and at least partly surround thespring 500 preventing the spring from bending outwards or out of its centre axis, thereby providing axial support to the spring. The inside of thespring tunnel portion 203 may be substantially semi-cylindrical, rounded or any shape corresponding to the shape of thespring 500 or the shape of the guiding means 301. - The second
spring support element 200 may include asupport housing 220. Thespring tunnel portion 203 may be a part of thesupport housing 220. Thesupport housing 220 may have two side openings orslots 221, 221'. Theside slots 221, 221' have two upper edges (facing downwards inFig. 3A ) advantageously serving as latchingedges 230, 230'. - The
spring unit 400 may be operational in a dusty/moist environment. Theside slots 221, 221' advantageously provides a ventilated openings for preventing dust particles and moisture from getting trapped inside the secondspring support unit 200 while at the same time providing latchingedges 230, 230'. - The second
spring receiving portion 202 is configured to receive an opposite end of thespring 500 and serves as and may be referred to as a spring stop. Thespring 500 is preferably sufficiently long to reach both the first and secondspring receiving portion spring unit 400 is assembled. - The second
spring support element 200 may include acover plate 210. Thecover plate 210 may span wider and/or serve as a support plate for thesupport housing 220. Thecover plate 210 advantageously hides and protects the back portion of the second spring support element. This is advantageously aesthetic as seen inFig. 2A . It also serves the purpose of shielding thespring 500 and its surrounding components from dust, moisture and water which may rust a metal spring. - The
cover plate 210 or the secondspring support element 200 may include second flexible latching means 204 for latching onto thelatch device body 100 first guiding slot 101 (seeFig. 2B ) thereby providing a connection for fixing the secondspring support element 200 to thelatch device body 100. The second flexible latching means 204 may be in principle a standard plastic clip or snap lock. - The
spring tunnel portion 203 may cover or at least partially surround a first side of thespring 500. Acover plate 210 may cover or at least partially surround the other side of the spring. Thespring tunnel portion 203 and thecover plate 210 may together form a channel or boring or tunnel for thespring 500. - The
cover plate 210 may include alongitudinal groove 211 or recess for guiding the spring and for providing a curved surface corresponding to the outer surface of thespring 500. - The first
spring support element 300 may include two first flexible latching means 303, 303' such as spears or prongs extending out from the firstspring support element 300 body. The spear tips include a rear facing catching edge surface serving in principle as a hook. - The first
spring support element 300 may be inserted into the secondspring support element 200. While inserting, the first flexible latching means 303 engages thesupport housing 220 and bends inwards. The first flexible latching means 303 are spaced apart corresponding to the first open end of thesupport housing 220. The two latching means 303, 303' are configured to respectively latch onto the two latchingedges 230, 230' thereby connecting thespring support element - This provides an easy way of assembling the
compact spring unit 400. -
Fig. 3B is a transparent perspective view of the compressiblecompact spring unit 400 in an assembled state.Fig. 3B shows how thespring 500 is located between the firstspring support element 300 and the secondspring support element 200. When thespring support elements spring 500 is compressed and forces thespring support elements - The
spring 500 does not need to be pre-biased in its initial position. This makes assembly quite easy. Thespring unit 400 is assembled by inserting the spring intro thetunnel portion 203 and thereby inserting the firstspring support element 300 into the secondspring support element 200 sandwiching thespring 500 between the first and second spring receiving portions. -
Fig. 3C is a perspective view of the flexible latching means of thesecond support element 200 including a detail cross-section of the latching means. InFig. 3C , the second flexible latching means 204 is engaged with thefirst guiding slot 101 as can be seen from the detail cross-section. When the secondspring support element 200 is pressed onto thelatch device body 100 the second flexible latching means 204 latches onto / clips on to thefirst guiding slot 101. This provides easy assembly of aspring unit 400 compared to more complex prior art disclosed in the background section.
Claims (15)
- Compact spring unit (400) comprising:a spring (500);a first spring support element (300);a second spring support element (200);wherein the spring (500) is at a first end connected to a first spring receiving portion (302) of the first spring support element (300);wherein the spring (500) is at a second end connected to a second spring receiving portion (202) of the second spring support element (200);wherein the first spring support element (300) is moveably connected to the second spring support element (200);wherein the first spring support element (300) and the second spring support element (200) are moveable along the centre axis of the spring (500) and configured to compress the spring (500) when moved against each other.
- Compact spring unit (400) of claim 1, wherein the first spring support element (300) comprises at least one first flexible latching means (303) and the second spring support element (200) comprises at least one latching edge (230) for receiving the flexible latching means (303), thereby providing means for moveably connecting the first spring support element (300) to the second spring support element (200).
- Compact spring unit (400) of any preceding claim, comprising a spring tunnel portion (203) for containing the spring (500) and for providing axial stability to the spring (500).
- Compact spring unit (400) of any preceding claim, wherein the second spring support element (200) comprises a second flexible latching means (204) for connecting the compact spring unit (400) to an external frame structure such as a latch device body (9).
- Compact spring unit (400) of any preceding claim, wherein the first spring support element (300) comprises guiding means (301) for engaging the inner surface of the spring tunnel portion (203).
- Compact spring unit (400) of any preceding claim, wherein the first spring support element (300) comprises a curved portion (310) at one end for receiving a first anchoring means (111).
- Compact spring unit (400) of any preceding claim, comprising a cover plate (210) comprising a groove (211) for guiding the spring (500).
- Latch device (9) for an extendable hinge (8) comprising:a compact spring unit (400) according to any of the preceding claims;a latch device body (100);a first guiding slot (101) for receiving and moveably connecting the latch device (9) to a first anchoring means (111) connected directly or indirectly to a window frame, and for receiving the compact spring unit (400);wherein the latch device (9) is moveable between a first releasing position and a second latching position;wherein the compact spring unit (400) is configured to apply a spring force against the first anchoring means (111) when the latch device (9) is in the first releasing position;latch device latching means (113, 114) for receiving and latching onto at least one hinge arm (10, 11) via respective hinge arm latching means (14, 15), thereby retaining the at least one hinge arm (10, 11).
- Latch device (9) according to claim 8 further comprising:
a second guiding slot (112) for receiving and moveably connecting the latch device (9) to a second anchoring means (110) connected directly or indirectly to a window frame. - Latch device (9) according to any of claim 8 or 9, wherein one of the latch device latching means is a latching hook (114) and the respective hinge arm latching means (14) is a protrusion (14).
- Extendable hinge system (8) for windows or doors, comprising:a latch device (9) according to any of the preceding claims;at least one hinge arm (10, 11);a first anchoring means (110, 11) for moveably connecting the latch device(9) to a window frame or a support element (12) ;wherein each hinge arm (10, 11) comprises a hinge arm latching means (14, 15);wherein the latch device (9) is moveable between an releasing position and a latching position;wherein when the latch device (9) is in the latching position, the latch device (9) is configured to latch onto the hinge arm latching means (14, 15) by means of the latch device latching means (113, 114) and thereby retain the at least one hinge arm (10, 11); andwherein when the latch device (9) is in the releasing position, the latch device (9) is configured to release the arm latching means (14, 15) and thereby also release the at least one hinge arm (10, 11);wherein when the latch device (9) is moved between the releasing position and the latching position the compact spring unit (400) excites a spring force between the first anchoring means (111) and the latch device (9) so that the latch device (9) is forced towards the latching position.
- Method of assembling a latch device (9) according to any of the preceding claims, comprising the steps of:anchoring the latch device (9) by inserting a first anchoring means (111) into the first guiding slot (101);inserting a compact spring unit (400) into the first guiding slot (101).
- Method of claim 12, further comprising the steps of:
inserting second anchoring means (110) into a second guiding slot (112). - Use of a compact spring unit (400) according to any preceding claims in a hinge system for doors or windows.
- Use of a compact spring unit (400) in a latch unit (9) according to any preceding claim.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20221123A NO347621B1 (en) | 2022-10-19 | 2022-10-19 | Compact spring unit and latch device for a hinge system |
Publications (1)
Publication Number | Publication Date |
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EP4361391A1 true EP4361391A1 (en) | 2024-05-01 |
Family
ID=88504989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23204561.7A Pending EP4361391A1 (en) | 2022-10-19 | 2023-10-19 | Compact spring unit and latch device for a hinge system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4361391A1 (en) |
DK (1) | DK202330273A1 (en) |
NO (1) | NO347621B1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999005379A1 (en) * | 1997-07-09 | 1999-02-04 | Geze Gmbh & Co. | Device for opening and/or closing a wing of a door, window or similar |
GB2366323A (en) * | 2000-08-31 | 2002-03-06 | Dgs Hardware Ltd | Friction stay with biassed slider |
WO2003021066A1 (en) | 2001-08-17 | 2003-03-13 | As Spilka Industri | Window mounting |
US8186102B1 (en) * | 2005-11-15 | 2012-05-29 | Lawrence Barry G | Tilt latch |
WO2019093421A1 (en) * | 2017-11-10 | 2019-05-16 | 株式会社Tok | Hinge arm damper mechanism |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2236802B (en) * | 1989-10-02 | 1993-08-11 | Interlock Ind Ltd | Improvements in window stays |
-
2022
- 2022-10-19 NO NO20221123A patent/NO347621B1/en unknown
-
2023
- 2023-10-19 DK DKPA202330273A patent/DK202330273A1/en unknown
- 2023-10-19 EP EP23204561.7A patent/EP4361391A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999005379A1 (en) * | 1997-07-09 | 1999-02-04 | Geze Gmbh & Co. | Device for opening and/or closing a wing of a door, window or similar |
GB2366323A (en) * | 2000-08-31 | 2002-03-06 | Dgs Hardware Ltd | Friction stay with biassed slider |
WO2003021066A1 (en) | 2001-08-17 | 2003-03-13 | As Spilka Industri | Window mounting |
US8186102B1 (en) * | 2005-11-15 | 2012-05-29 | Lawrence Barry G | Tilt latch |
WO2019093421A1 (en) * | 2017-11-10 | 2019-05-16 | 株式会社Tok | Hinge arm damper mechanism |
Also Published As
Publication number | Publication date |
---|---|
NO20221123A1 (en) | 2024-01-29 |
DK202330273A1 (en) | 2024-06-13 |
NO347621B1 (en) | 2024-01-29 |
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