US3452803A - Hinged self-locking closure devices - Google Patents

Hinged self-locking closure devices Download PDF

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Publication number
US3452803A
US3452803A US664365A US3452803DA US3452803A US 3452803 A US3452803 A US 3452803A US 664365 A US664365 A US 664365A US 3452803D A US3452803D A US 3452803DA US 3452803 A US3452803 A US 3452803A
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US
United States
Prior art keywords
door
doors
aperture
locking
hinged
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
US664365A
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English (en)
Inventor
Philip Barnish
Jan Stelwagen
Thijs Willem Werkman
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.)
US Philips Corp
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US Philips Corp
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Filing date
Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
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Publication of US3452803A publication Critical patent/US3452803A/en
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/10—Doors; Securing means therefor

Definitions

  • the invention relates to hinged self-locking closure devices for containers having an aperture particularly but not exclusively the loading port of a rotatable washing drum of a washing and spin drying machine.
  • the object of the invention is to provide a hinged closure device for an aperture in a container, particularly the loading port in the washing drum of a washing and spin drying machine which is self-locking and which substantially overcomes the above mentioned difficulties.
  • the closure device according to the invention is resiliently urged to pivot about the hinges in one direction to open the aperture.
  • Self-locking and unlocking is obtained by pivotal movement of the closure device in the opposite direction through the aperture.
  • the closure device consists of two relatively movable door parts. One of the door parts is hinged to one end of the aperture and the second is hinged to the first door or to the end of the aperture.
  • Self-locking and unlocking is obtained by a lock which in the closed position of the doors locks the doors together or locks said second door to said aperture.
  • the combined lengths of the door parts spanning the aperture is greater than the span of the aperture. The doors are rotated about their hinges so as to overlap when passing through the aperture for the operation of the lock.
  • the width of the doors must be slightly less than the width of the aperture to permit the door to pass therethrough.
  • the side of the closure device bounding the hinged end and the adjacent sides of the aperture are each of sinuate form and interengage when the closure is in the closed position.
  • FIGURE 1 is a perspective view of a part of a Washing drum of a washing machine
  • FIGURE 2 is an explanatory diagram showing the doors of a modified construction in the open, closed and locking and unlocking positions
  • FIGURE 3 is a plan view of the doors of FIGURE 2
  • FIGURE 4 is an explanatory diagram showing the doors with an alternative locking device in the open, closed and locking and unlocking positions
  • FIGURE 5 is a plan view of the doors of FIGURE 4, an
  • FIGURE 6 is an alternative construction shown diagrammatically.
  • the closure device consists essentially of two door parts 1, 2 of substantially rectangular form closing a substantially rectangular aperturein the cylindrical wall 3 of a washing drum 4.
  • the door 1 is pivotally connected to one end of the aperture by a hinge 5 and the door 2 is similarly connected to the other end of the aperture by hinge 6.
  • the doors are of arcuate form, forming in the closed position (shown in the drawing) a continuation of the cylindrical wall of the drum.
  • the free edge of each door remote from the hinge is rolled over to form a hook and these hooks are adapted to interchange to form a self-locking device for the doors.
  • FIGURES 2 and 3 show a modified constructional form, like parts having like references.
  • the doors 1 and 2 are resiliently urged towards their open position shown in dashed lines in FIGURE 2 by torsion springs 7 surrounding the respective hinged pins.
  • torsion springs 7 surrounding the respective hinged pins.
  • the look-like ends, 8, 9 respectively of the doors interengage and are maintained in this position by the springs. Any further loading for example by centrifugal force tending to open the doors merely results in an increased tensile force on the hooks.
  • FIGURES 4 and 5 An alternative and preferred construction is shown in FIGURES 4 and 5.
  • the doors are of pressed stainless steel construction suitably ribbed for greater strength and attached to the door 1 as by rivets are three hooks 10.
  • the door 2 is provided with corresponding eyes 11 formed by piercing the metal and forming the material defining the hole to provide local stiffness and a shape corresponding to that of the hook on that side of the eye adapted to engage the hook.
  • To cover the apertures presented by the eyes 11 when the doors are in the closed position blanking plates 12 extending beyond each hook may be secured to the door 1 by the same rivets which secure the hooks 10 in position.
  • FIGURE 6 A further modification is shown diagrammatically in FIGURE 6.
  • the positions of the hinge and the locking means on the door 1 has been interchanged so that the door 1 is hinged to the door 2 and the free end of the door 1 has eyes 11 adapted to engage hooks 10 secured to the end of the aperture
  • Both hinges 5 and 6 may carry tension springs, the springs on the hinge 6 being arranged to urge the door 2 into its open position and the springs on the hinge 5 urging the door 1 into the closed position.
  • Inward pressure on the hinge 5 to open the doors causes the doors to pass through the aperture at the same time disengaging the eyes 11 from the hooks 10.
  • the door 1 may then be manually lifted and both doors permitted to rotate about the hinge 6 to the open position.
  • the sides of the doors and the adjacent sides of the aperture are of sinuate form and interengage when the doors are in their closed position.
  • the sinuate edges each have a sufficient number of hills and valleys to hinder the ejection of articles from the drum so that if the corner of an article, such as a handkerchief, starts to pass through the sinuous clearance space the curvature of the edges defining this space causes a partial folding of the material which increases its resistance to passage therethrough.
  • the sides of the doors and the aperture may be formed to the required shape but preferably the sinuate edges are provided by moulded plastics strips 13, 14 riveted or otherwise secured to the doors with corresponding strips 15 secured to the sides of the aperture.
  • Such strips have the additional advantage of having rounded corners so that no sharp edges are presented to the user when the doors are open or to the articles in the drum when the doors are closed.
  • a self-locking closure for a container having an aperture comprising a first door, a first hinge means intermediate an edge of said first door and an edge of said aperture for pivotally mounting said first door to swing through said aperture, a second door, a second hinge means intermediate an edge of said second door and an edge of said aperture, a first resilient means for biasing said first door in a direction outward from said aperture, a second resilient means intermediate said doors for biasing said second door toward said aperture, an edge of said second door opposite said second hinge means overlapping a corresponding edge of said first door, and locking means on said overlapping edges for engaging said overlapping edges in response to inward pressure on said first door.
  • a closure device as claimed in claim 1 wherein said locking means comprises hooks on one of said overlapping edges and corresponding eyes on the other overlapping edge.
  • a closure device as claimed in claim 1 wherein the sides of the doors bounding the hinged ends are serrated, and wherein the corresponding edges of the aperture are serrated.
  • a self-locking closure for a container having an aperture comprising a first door, a first hinge means intermediate an edge of said firstdoor and an edge of said aperture for pivotally mounting said first door to swing through said aperture, a second door, a second hinge means intermediate an edge of said second door and an edge of said aperture, the edges of said doors and the corresponding edges of said aperture having serrations, a first resilient means for biasing said first door in a direction outward from said aperture, a second resilient means intermediate said doors for biasing said second door toward said aperture, an edge of said second door opposite said second hinge means overlapping a corresponding edge of said first door, hooks on one of said overlapping edges, and corresponding eyes on the other said overlapping edge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Lock And Its Accessories (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
US664365A 1966-08-31 1967-08-30 Hinged self-locking closure devices Expired - Lifetime US3452803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38897/66A GB1161218A (en) 1966-08-31 1966-08-31 Improvements in or relating to Hinged Self-Locking Closure Devices.

Publications (1)

Publication Number Publication Date
US3452803A true US3452803A (en) 1969-07-01

Family

ID=10406366

Family Applications (1)

Application Number Title Priority Date Filing Date
US664365A Expired - Lifetime US3452803A (en) 1966-08-31 1967-08-30 Hinged self-locking closure devices

Country Status (8)

Country Link
US (1) US3452803A (enrdf_load_stackoverflow)
CH (1) CH498972A (enrdf_load_stackoverflow)
DE (2) DE1585868B2 (enrdf_load_stackoverflow)
DK (1) DK120481B (enrdf_load_stackoverflow)
ES (1) ES344576A1 (enrdf_load_stackoverflow)
GB (1) GB1161218A (enrdf_load_stackoverflow)
NL (1) NL6711688A (enrdf_load_stackoverflow)
SE (1) SE330872B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375803A (en) * 1981-04-22 1983-03-08 Love Samuel D Variable fireplace screen and insert
US5860554A (en) * 1996-03-28 1999-01-19 Ruffo; Michael Lockable lid support
EP1574611A1 (en) * 2004-03-11 2005-09-14 Whirlpool Corporation Top-loading clothes washing machine with two drum door flaps
US20160222570A1 (en) * 2013-06-17 2016-08-04 Werkhuizen Lapauw Nv Washing drum

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2237409C3 (de) * 1972-07-27 1987-12-03 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Trommeldeckel für eine mantelbeschickbare Trommelwaschmaschine
DE2265551C3 (de) * 1972-07-27 1986-01-09 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Trommeldeckel für eine mantelbeschickbare Trommelwaschmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US685506A (en) * 1901-04-11 1901-10-29 Walter Rollin Browning Grain-door for cars.
US1340506A (en) * 1919-06-26 1920-05-18 Smithback Neal Grain-door
US1440077A (en) * 1922-05-31 1922-12-26 Benjamine W Heitz Grain-car door
US1506310A (en) * 1921-11-26 1924-08-26 Klaus Martin Grain-car door

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US685506A (en) * 1901-04-11 1901-10-29 Walter Rollin Browning Grain-door for cars.
US1340506A (en) * 1919-06-26 1920-05-18 Smithback Neal Grain-door
US1506310A (en) * 1921-11-26 1924-08-26 Klaus Martin Grain-car door
US1440077A (en) * 1922-05-31 1922-12-26 Benjamine W Heitz Grain-car door

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375803A (en) * 1981-04-22 1983-03-08 Love Samuel D Variable fireplace screen and insert
US5860554A (en) * 1996-03-28 1999-01-19 Ruffo; Michael Lockable lid support
EP1574611A1 (en) * 2004-03-11 2005-09-14 Whirlpool Corporation Top-loading clothes washing machine with two drum door flaps
US20160222570A1 (en) * 2013-06-17 2016-08-04 Werkhuizen Lapauw Nv Washing drum
US9783919B2 (en) * 2013-06-17 2017-10-10 Werkhuizen Lapauw Nv Washing drum

Also Published As

Publication number Publication date
DE1585868B2 (de) 1975-04-10
DE6605058U (de) 1970-05-06
SE330872B (enrdf_load_stackoverflow) 1970-12-07
NL6711688A (enrdf_load_stackoverflow) 1968-03-01
DE1585868A1 (de) 1971-08-19
ES344576A1 (es) 1968-10-16
CH498972A (de) 1970-11-15
DE1585868C3 (enrdf_load_stackoverflow) 1980-10-09
DK120481B (da) 1971-06-07
GB1161218A (en) 1969-08-13

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