US3860995A - Locking spring hinge - Google Patents

Locking spring hinge Download PDF

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Publication number
US3860995A
US3860995A US352535A US35253573A US3860995A US 3860995 A US3860995 A US 3860995A US 352535 A US352535 A US 352535A US 35253573 A US35253573 A US 35253573A US 3860995 A US3860995 A US 3860995A
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United States
Prior art keywords
door
locking
rocking lever
spring
locking element
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
Application number
US352535A
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English (en)
Inventor
Jr Karl Lautenschlager
Gerhard Lautenschlager
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karl Lautenschlaeger GmbH and Co KG Moebelbeschlafabrik
Original Assignee
Karl Lautenschlaeger GmbH and Co KG Moebelbeschlafabrik
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Filing date
Publication date
Priority claimed from DE19722219616 external-priority patent/DE2219616C3/de
Priority claimed from DE19732307365 external-priority patent/DE2307365A1/de
Application filed by Karl Lautenschlaeger GmbH and Co KG Moebelbeschlafabrik filed Critical Karl Lautenschlaeger GmbH and Co KG Moebelbeschlafabrik
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Publication of US3860995A publication Critical patent/US3860995A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/16—Hinges with pins with two or more pins with seven parallel pins and four arms
    • 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
    • E05D11/1014—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in only one position, e.g. closed
    • E05D11/1021—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in only one position, e.g. closed the hinge having two or more pins and being specially adapted for cabinets or furniture
    • 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
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/16—Hinges with pins with two or more pins with seven parallel pins and four arms
    • E05D2003/166—Vertical pivot-axis
    • 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
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

Definitions

  • ABSTRACT A resiliently biased locking element travels in free sliding relation over an arcuate surface throughout the major extent of oscillatory movement of a rocking lever associated with a linked lever system of a door hinge especially useful for pieces of furniture, whereby the door is freely movable between a fully open position and a fully closed position, the resiliently biased locking element engaging a detent surface leading from the arcuate surface close to the fully closed posi tion of the door, avoiding terminal slamming of the door, but obtaining a satisfactory locked door relationship.
  • a self-lubricating material such as a
  • Hinges of this type are provided with parts that are respectively attached to the door and to a stationary part of the associated piece of furniture, with a suitable connecting lever system, with a locking spring and detent arrangement such that when the door is at approximately half-open position, the locking spring causes the door to be urged into its complete closing position and then to maintain it closed. In most cases the dead center is close to the open position. Therefore, shortly after start of closing a completely opened door, the spring will begin exerting a closing force so that if the door is released from restraint, the spring acts in a manner to accelerate movement of the door to closing position in spite of decreasing spring tension. This results in often undesirable slamming of the door, and can have a dangerous smashing effect on a person s hand or finger.
  • Another object of the invention is to provide a new and improved locking spring hinge in which the locking effect is attained efficiently and with adequate resilient bias force, but without effecting a closing force on the door until the door is almost fully closed.
  • a further object of the invention is to provide a new and improved locking spring hinge which has an excellent door locking function, but is free from undesirable door closing acceleration.
  • Still another object of the invention is to provide a new and improved door hinge especially suitable for furniture doors and which has a new and improved selflocking device free from undesirable terminal closing acceleration effects.
  • FIG. 1 is a sectional plan view of a hinge construction embodying features of the invention, showing the relationship of parts in a partially open position of a door with which associated;
  • FIG. 2 is an enlarged, fragmentary, generally schematic illustrative section plan view demonstrating the relationship of the resiliently biased locking element and the fixed locking and control element of the hinge assembly in fully door open and fully door closed relationships;
  • FIG. 3 is an outer end elevational view of the doormounted hinge-anchoring socket member of the hinge assembly
  • FIG. 4 is a view similar to FIG. 2, but showing a slight modification
  • FIG. 5 is a view similar to FIG. 2, but showing another modification.
  • FIG. 6 is a similar view showing a further modification.
  • FIG. 1 a typical knuckle hinge joint embodying features of the invention is shown in FIG. 1 wherein a supporting wall 1 alongside an opening in, for example, a piece of furniture such as a cabinet, has associated therewith a door 2 for closing the opening.
  • a knuckle joint hinge assembly comprising a linked lever system including hinge arms and rocking levers connected to and between a wall supported stop bracket comprising an anchoring member 3 suitably attached by means of a mounting plate 4 to the wall 1.
  • a hinge socket 5 which may be made as an injection molded plastic part.
  • a linked lever system including a hinge arm 6 and a hinge arm 7 connected together in relatively pivotal relation by a pivot pin 8.
  • the hinge arm 7 comprises twin coextensive spaced arm portions 7a connected by an integral web 7b, with the arm 6 extending from its pivotal connection 8 in generally crosswise direction relative to the arm 7 and having one end pivotally attached by means such as a hinge pin 9 to an end portion of the bracket member 3 located adjacent to the door 2 and in the fully closed position of the door received in the door mounted stop member 5 which is of generally dished shape, as shown, for this purpose.
  • Pivotal connection of the arm 7 to the member 5 is by means of a hinge pin 10. Connection of an opposite end of the arm 6 with the member 5 is through the medium of a rocking lever 11, and connection of an opposite end of the arm 7 with the bracket member 3 is through the medium of a rocking lever 12.
  • Pivotal connection of the lever 11 with the member 5 is by means of a hinge pin 13 while a hinge pin 15 connects the lever 11 with the arm 6.
  • Connection of the rocking lever 12 with the member 3 is by means of a hinge pin 14 and connection of the rocking lever 12 with the arm 7 is effected by means of a'hinge pin 16.
  • new and improved self-locking means are provided in the hinge structure which will function efficiently to hold the door against unintentional opening, which will release with moderate manual door-opening force, which will permit the door to be swung easily and without restraint between fully open and almost fully closed positions, unless additional locking or semi-locking positions are desired at intervals in the opening of the door,
  • the hinge assembly is provided with a resiliently biased locking element and a control locking cam element cooperatively related thereto.
  • these cooperating locking elements may take various forms and may be located in their cooperative relation at various places in the assembly, and in association with the linked lever system and either the door 2 or the wall 1, a preferred arrangement comprises mounting the locking elements in association with the rocking lever 12 and the bracket member 3, substan- I tially as shown in FIGS. 1 and 2.
  • one of the rocking levers 11 or 12, and in the illustrated instance the rocking lever 12 carries as a resiliently biased locking element an integral finger portion 17 swingably located in a slot 18 provided within the body of the lever 12 in a plane normal to the axes of the pivots 14 and 16 and with the finger 17 attached as by means of an integral connection 1? to the body of the lever 12 which for this purpose may be formed from suitable plastic material as by an injection molding process, or any other preferred process wherein the body of the lever 12 and the finger 17 comprise a one piece structure.
  • the swingably supported locking element finger 17 cooperates with a fixed locking and control element carried by the adjacent end portion of the mounting bracket member 3 and desirably comprising an integral ear-like projection thereon of a width to be received freely in the slot 18 and serving as support for the pin 14 on which the adjacent end portions bifurcated by the slot 18 of the lever 12 are mounted.
  • the bracket member 3 with the ear-like element 20 may be a metal piece which can be readily mass produced as a die casting.
  • a cooperative relationship between the locking element l7 and the locking element 20 attaining the desirable objects of the present invention results from riding of a detent tip formation 21 on the free end of the element on a cam edge surface 22 on the element 20.
  • a cam surface 22 is of a segmental arcuate shape and throughout the major extent of its length concentric with the axis of the pin 14 and thereby concentric with the arc of movement of the pivot pin 16, except for a short distance at its end remote from the door 2 and facing generally away from the lever system and which provides a locking shoulder 23 desirably formed on a rapidly diminishing radius relative to the axis 14.
  • the locking element detent 21 will lockingly engage the locking shoulder 23 and resist opening of the door to the extent of resilient bias of the locking element 17.
  • the locking cooperation of the detent 21 and the shoulder 23 is enhanced by complementary shape of the opposed locking surfaces whereby the locking surface of the detent 21 engages substantially throughout the length of the shoulder 23 which may be formed on a radius of curvature substantially the same as the radius of curvature of the major extent of the cam edge 22 and joining the same on a curved transition surface area 24 at a lobe projection of the element 20 and over which the detent 23 travels in movement as the rocking lever 12 moves to and between the door closed position thereof as shown in FIG.
  • the detent 21 leaves the shoulder 23 due to the substantial differential in center of radius between the shoulder surface 23 and the main surface 22 of the cam edge and the detent 21 rides smoothly on the transition surface 24 toward the main extent of the surface 22 smoothly for easy continuing opening of the door.
  • connection 19 may, as shown, be relatively flexible and mechanical biasing means in the form of a spring 25 supplied to provide a desired resilient bias for the element 17.
  • the spring 25 may take any desired form such as coiled compression, hairpin wire torsion, and the like
  • a preferred, economical, simple and efficient form comprises a generally U-shaped leaf spring structure the bight of which is engaged on the pivot pin 16 within the slot 18.
  • a biasing leg 26 of the spring bears against the inner side of the finger 17 to thrust it outwardly toward the element 20, while a backup leg 27 of the spring engages an abutment 28 provided on the lever 12, maintaining the spring under tension for thrusting of the leg 26 toward the element 17.
  • interlock means are provided on the spring leg 27 comprising a return bent or hooked interlock shoulder terminal 29 engaging interlockingly with an oppositely facing interlock shoulder 30 at the adjacent end of the thrust shoulder formation 28.
  • the detent 21' of the locking shoe element 17' may be accentuated as a small radius projection. Not only is the detent projection 21' engageable in locking relation with the shoulder 23, but also in any one or more desired locking positions along the otherwise free riding or gliding control cam profile edge surface 22.
  • an intermediate door open position may be determined by a detent receiving interlock shoulder recess 31 in the surface 22.
  • an open door interlock recess 32 may be provided in the surface 22 receptive of the detent 23 in the fully open position of the door.
  • the door mounting member 5 of the hinge assembly may be in the form a cast or injection molded plastic member of generally dish shape.
  • FIG. 3 showing a plan view looking into the member which is provided at opposite sides with means such as screw hole bores 33 to facilitate securing the member as set into the door with which associated.
  • special attachment provisions are made for the knuckle joint arm 7.
  • the member 5 is provided with sturdy land body portions at the opposite sides through which the respective pivot pins and 13 are engaged, and respective slot recesses 34 are provided for sliding guiding reception of the terminal portions of the arm side plate parts 7a.
  • respective slot recesses 34 are provided for sliding guiding reception of the terminal portions of the arm side plate parts 7a.
  • the fixed locking and control element 20 comprises a metal core 37 which may be similarly as in the case of the previously described element 20 formed integrally with the mounting bracket member 3 and serve as pivot anchorage through the pivot pin 14' for the rocking lever 12' which carries the pivot pin 16 by which the lever is operatively connected with the hinge lever system.
  • a plastic cover 38 is permanently mounted on the core 37.
  • the en tire element 20 may be made from plastic either integral with the bracket member 3 or secured thereto.
  • a continuous plastic control and locking surface structure is provided including a semicircular segmental free riding surface length 22' (FIG. 5) a locking surface 23' and a transition arcuate surface 24' between the surface portions 22' and 23'.
  • the resiliently biased locking element which in this instance comprises the spring 25 directly having on its tensioned leg 26' a locking interlock shoe 39 functioning to engage in locking relation with the locking shoulder surface 23 in the closed door position of the lever 12 and gliding with limited contact over the surfaces 22' and 24' in the opening and closing movements of the door whereby wear per unit area is diminished to a minimal fraction.
  • the hollow space provided by the slot 18 within the lever 12' is fully open toward the fixed element 20 for thrusting of the spring leg 26' thereagainst as maintained under tension by backing of the leg 27 of this U-shaped spring 25' against the shoulder surface 28' within the lever.
  • interlocking of the spring leg 27' against displacement of the spring 25 from the hollow lever 12, in cooperation with the pivot pin 16 about which the bight of the spring is engaged is provided for by an interlock lug 4O projecting inwardly from the thrust shoulder surface 27 into an interlock aperture 41 formed in the leg 27'.
  • the spring 25' is adapted to be assembled by thrusting its legs into the hollow 18 within the lever 12' until the spring bight engages about the pivot pin 16' and the interlock aperture 41 receives the interlock lug 40 and at which time the turned detent shoe 39 of the spring leg 26' will engage tensionably with the fixed locking member 20.
  • FIG. 5 Another feature which may be noted in the form of FIG. 5 resides in that the dead center position between the resiliently biased and fixed locking elements, as represented by the transition surface 24' between the free riding surface 22' and the locking surface 23' is extended in the door closing direction as compared, for example, with the position of the intermediate or dead center surface 24 in FIG. 2.
  • a slightly greater closing push force must be exerted in order to overcome the slightly increased tensioning of the locking spring to move it beyond dead center to the closing position.
  • the closing effect is improved in the last short interval of movement to the fully closed position, and the resiliently biased locking element attains a particularly advantageous locking tension with the locking surface 23'.
  • the dead center position may be correspondingly lengthened in the direction of the door closing movement, as represented in FIG. 6.
  • the plastic cam surface part 38' has an extended lobe 42 which thereby effects an extension in length of the free glide surface 22" whereby the spring leg 26' is placed under substantial increased tension as it approaches the transition surface 24" and the locking engagement of the spring leg 26' occurs in the final very close to door closed position with the locking engagement of the leg with the locking surface 23" occurring close to the surface 24" in an extremely small interval of travel.
  • FIGS. and 6 provide for a wide selective range of locking spring action to meet numerous and varied requirements.
  • Such variations can be attained in a particularly simple and inexpensive manner in that it is not necessary to produce a special hinge construction for each requirement, but the desired result can be attained by varying the cam surface profile of the plastic control portion 38, 38 of the fixed locking element
  • the core part 37 and other parts of the hinge assembly can be standardized in construction, and any selected form of the plastic portion, of which a range of sizes may be stocked in inventory, can be applied to the standard core.
  • Product costs and inventory problems are thus reduced while enabling inexpensive attainment of a large range of cam surface profiles to meet numerous requirements speedily.
  • a locking spring hinge having means for fixed mounting on a wall adjacent an access opening in a piece of furniture, means for mounting to a door adapted to close the opening, and articulating lever arm structure pivotally connected to and between said means and operable to support the door and control movement of the door between open and closed positions relative to the opening, comprising:
  • one of said locking elements being resiliently biased toward the other of said locking elements
  • said other locking element having a glide surface along which said biased locking element rides and maintaining said one element against bias thrust effect in a closed door direction throughout a major extent of rocking oscillations of said rocking lever between the open door and closed door positions;
  • said other locking element having a locking shoulder surface leading from said glide surface and with which shoulder surface said biased locking element engages in the closed door position of said rocking lever for thereby maintaining the closed door position by resilient thrust of the biased locking element against said locking shoulder surface;
  • said other of said locking elements comprising a mounting ear rigid with said one of said means
  • said rocking lever having a slot within which said ear is received
  • pivot means connecting the rocking lever to said ear
  • said ear having said glide and locking shoulder surfaces thereon in cam profile
  • said resiliently biased locking element being carried by said rocking lever within said slot.
  • said rocking lever having a pivot pin extending across said slot spaced from said fixed locking element
  • said resiliently biased locking element including a generally U-shaped spring having its bight engaged over said pivot pin, shoulder means on said lever and providing a thrust backing for one leg of said spring, and another leg of said spring being thereby maintained in tensioned bias toward said fixed locking element
  • a hinge according to claim 1, wherein said other locking element comprises a metal core having fixedly thereon a plastic portion providing said surfaces.
  • said other locking element has a lobed cam profile providing said surfaces and including a lobe extension of said glide surface in the direction of closing movement of said resiliently biased element along the glide surface effecting an increase of tension of the biased element as it approaches a dead center position adjacent to said locking shoulder surface, and movement of said resiliently biased element from dead center to said locking surface being within a small incremental remaining movement of said rocking lever into the closed door position, whereby to avoid acceleration in the door closing movement.
  • a locking spring hinge having first means for fixed mounting on a wall adjacent an access opening in a piece of furniture, second means for mounting to a door adapted to close the opening, and articulating lever arm structure pivotally connected to and between said means and operable to support the door and control movement of the door between open and closed positions relative to the opening, comprising:
  • a locking element carried fixedly by said one means adjacent to said rocking lever and having a glide surface and a locking shoulder surface leading from said glide surface;
  • a resiliently biased locking element comprising a generally U-shaped spring carried by and movable with said oscillatable rocking lever and having one leg biased toward said glide and locking surfaces;
  • said rocking lever being made from plastic material and having a low-friction detent shoe comprising a finger element integrally connected flexibly with the rocking lever and interposed between said spring leg and said surfaces and functioning in oscillating movements of the rocking lever to ride along said surfaces, maintaining the elements free from door closing bias effect of the spring while the detent shoe rides said glide surface and effecting a door closing engagement with said locking shoulder in the closed door position of the elements.
  • a locking spring hinge having means for fixed mounting on a wall adjacent an access opening in a piece of furniture, means for mounting to a door adapted to close the opening, and articulating lever arm structure pivotally connected to and between said means and operable to support the door and control movement of the door between open and closed positions relative to the opening, comprising:
  • one of said locking elements being resiliently biased toward the other of said locking elements
  • said other locking element having a glide surface along which said biased locking element rides and maintaining said one element against bias thrust effeet in a closed door direction throughout a major extent of rocking oscillations of said rocking lever between the open door and closed door positions;
  • said other locking element having a locking shoulder surface leading from said glide surface and with which shoulder surface said biased locking element engages in the closed door position of said rocking lever for thereby maintaining the closed door position by resilient thrust of the biased locking element against said locking shoulder surface;
  • a lever arm pivotally attached at one end to said rocking lever and having an opposite end comprising a pair of spaced co-extensive parallel side portions;
  • said mounting means comprising a member having parallel slots therein within which said parallel side portions are pivotally engaged;
  • a knuckle joint hinge assembly including a first member adapted to be mounted on a wall adjacent to an opening adapted to be closed by a door and a second member adapted to be mounted on the door, comprismg:
  • rocking lever for at least controllably connecting the rocking lever with said one member, including means pivotally connecting the rocking lever to said one member and a hinge pin connecting the rocking lever to said hinge arm;
  • said guide surface having an end portion of substantially decreased radius and leading to a locking surface such that the second spring leg can act with an easy transition from the open door bias toward said arcuate portion of the surface to the locking portion of the surface wherein bias of the second leg maintains the closed door position releasably.
  • a knuckle joint hinge assembly according to claim 7, wherein said surface comprises a lobed cam profile including a lobe extension of said arcuate surface portion in the direction of closing movement of the second spring leg along the surface and effecting an increase of tension of the second leg as it approaches a dead center position adjacent to said locking portion of the surface, and movement of said second leg from the dead center position to the locking portion of the surface being within a small incremental remaining movement of the rocking lever into its closed door position, whereby to avoid acceleration in the door closing movement.
  • a knuckle joint hinge assembly according to claim 7, wherein said surface is provided on a mounting ear rigid with said first member, said rocking lever having a slot within which said ear is received, pivot means connecting the rocking lever to said ear, and said spring being located within said slot.
  • a knuckel joint hinge assembly including a low-friction detent shoe comprising a finger element flexibly connected to the rocking lever within said slot and interposed between said second spring leg and said surface.
  • a knuckle joint hinge assembly according to claim 7, wherein said hinge arm has one end thereof pivotally connected to said rocking lever by said hinge pin and has in the opposite end thereof a pair of spaced coextensive parallel side portions, said second mounting member having parallel slots therein within which said parallel side portions are pivotally engaged, and a pivot pin traversing said slots and extending through said side portions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)
US352535A 1972-04-21 1973-04-19 Locking spring hinge Expired - Lifetime US3860995A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722219616 DE2219616C3 (de) 1972-04-21 Senile Bfeder-Kreuzgelenkscharnier
DE19732307365 DE2307365A1 (de) 1973-02-15 1973-02-15 Schliessfederscharnier

Publications (1)

Publication Number Publication Date
US3860995A true US3860995A (en) 1975-01-21

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Application Number Title Priority Date Filing Date
US352535A Expired - Lifetime US3860995A (en) 1972-04-21 1973-04-19 Locking spring hinge

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US (1) US3860995A (pm)
JP (1) JPS4920559A (pm)
AT (1) AT330014B (pm)
FR (1) FR2181419A5 (pm)
GB (1) GB1422733A (pm)
IT (1) IT980883B (pm)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911529A (en) * 1974-10-29 1975-10-14 United States Steel Corp Door hinge assembly
US3991437A (en) * 1975-03-14 1976-11-16 Prameta Prazisionsmetall- Und Kunststofferzeugnisse G. Baumann & Co. Concealed hinge for furniture
US4100647A (en) * 1976-05-25 1978-07-18 Fichet-Bauche Pivot device for doors of strong boxes, safes or the like
US5060344A (en) * 1990-06-04 1991-10-29 Amerock Corporation Self-latching knife hinge
US20050005826A1 (en) * 2002-04-09 2005-01-13 Strong L. Curtis Portable folding table with locking hinge
US20050241552A1 (en) * 2003-04-08 2005-11-03 Martin Neunzert Handle for a portable table
US20050241550A1 (en) * 2004-04-22 2005-11-03 Martin Neunzert Retainer for securing a table in a folded position
US20110097983A1 (en) * 2009-10-26 2011-04-28 The Eastern Company Vent Apparatus
US8091490B2 (en) 2007-02-22 2012-01-10 Lifetime Products, Inc. Handle for a portable table
US8650713B2 (en) 2011-09-16 2014-02-18 Koblenz S.P.A. Fully concealed hinge with integrated closing device for doors and/or openable furniture parts
US9277729B1 (en) * 2013-10-15 2016-03-08 James Wright Automated pet cage
US20220316248A1 (en) * 2019-07-11 2022-10-06 Sugatsune Kogyo Co., Ltd. Hinge device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142083A (en) * 1983-06-23 1985-01-09 Isaac Reginald Davies Safes
DE3341350A1 (de) * 1983-11-15 1985-05-23 Arturo Salice S.P.A., Novedrate, Como Weitwinkelscharnier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237239A (en) * 1963-08-30 1966-03-01 Rudnick Jack Hinge structure
US3381333A (en) * 1966-11-14 1968-05-07 Ajax Hardware Mfg Corp Self-latching mechanism for hinges

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237239A (en) * 1963-08-30 1966-03-01 Rudnick Jack Hinge structure
US3381333A (en) * 1966-11-14 1968-05-07 Ajax Hardware Mfg Corp Self-latching mechanism for hinges

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911529A (en) * 1974-10-29 1975-10-14 United States Steel Corp Door hinge assembly
US3991437A (en) * 1975-03-14 1976-11-16 Prameta Prazisionsmetall- Und Kunststofferzeugnisse G. Baumann & Co. Concealed hinge for furniture
US4100647A (en) * 1976-05-25 1978-07-18 Fichet-Bauche Pivot device for doors of strong boxes, safes or the like
US5060344A (en) * 1990-06-04 1991-10-29 Amerock Corporation Self-latching knife hinge
US7640870B2 (en) 2002-04-09 2010-01-05 Lifetime Products, Inc. Portable folding table with locking hinge
US20050005826A1 (en) * 2002-04-09 2005-01-13 Strong L. Curtis Portable folding table with locking hinge
US8156875B2 (en) 2003-04-08 2012-04-17 Lifetime Products, Inc. Handle for a portable table
US7735431B2 (en) 2003-04-08 2010-06-15 Lifetime Products, Inc. Handle for a portable table
US20100242809A1 (en) * 2003-04-08 2010-09-30 Martin Neunzert Handle for a portable table
US20050241552A1 (en) * 2003-04-08 2005-11-03 Martin Neunzert Handle for a portable table
US20050241550A1 (en) * 2004-04-22 2005-11-03 Martin Neunzert Retainer for securing a table in a folded position
US7634969B2 (en) 2004-04-22 2009-12-22 Lifetime Products, Inc. Retainer for securing a table in a folded position
US8091490B2 (en) 2007-02-22 2012-01-10 Lifetime Products, Inc. Handle for a portable table
US20110097983A1 (en) * 2009-10-26 2011-04-28 The Eastern Company Vent Apparatus
US8727841B2 (en) * 2009-10-26 2014-05-20 The Eastern Company Vent apparatus
US8650713B2 (en) 2011-09-16 2014-02-18 Koblenz S.P.A. Fully concealed hinge with integrated closing device for doors and/or openable furniture parts
US9277729B1 (en) * 2013-10-15 2016-03-08 James Wright Automated pet cage
US20220316248A1 (en) * 2019-07-11 2022-10-06 Sugatsune Kogyo Co., Ltd. Hinge device
US11788331B2 (en) * 2019-07-11 2023-10-17 Sugatsune Kogyo Co., Ltd. Hinge device

Also Published As

Publication number Publication date
ATA298473A (de) 1975-08-15
IT980883B (it) 1974-10-10
JPS4920559A (pm) 1974-02-23
AT330014B (de) 1976-06-10
GB1422733A (en) 1976-01-28
FR2181419A5 (pm) 1973-11-30

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