US2797838A - Closure stop - Google Patents

Closure stop Download PDF

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Publication number
US2797838A
US2797838A US434105A US43410554A US2797838A US 2797838 A US2797838 A US 2797838A US 434105 A US434105 A US 434105A US 43410554 A US43410554 A US 43410554A US 2797838 A US2797838 A US 2797838A
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cover
stud
lever arm
hinged
elongated slot
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Expired - Lifetime
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US434105A
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Leonard H Read
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/1066—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1075—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • 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

Definitions

  • This invention relates to closure stops for hinged members and more particularly to improved supporting means for a hinged cover such as, a hatch cover, bulkhead box cover, automobile hood, record player cabinet cover and the like.
  • An object of the present invention is to provide a superior hinged cover supporting means which will retain a cover in closed position, partially opened position or fully opened position.
  • Another object of the present invention is to provide a superior hinged hatch cover supporting means which when the cover is closed does not protrude below the level of the base of the hatch.
  • Another object of the present invention is to provide a hinged hatch cover supporting means which will automatically close when stepped on when the hatch cover is in partially opened position.
  • Still another object of the present invention is to provide a hinged escape hatch cover supporting means which will permit a small child to move the escape hatch cover from closed to open position.
  • hinged cover supporting means permitted covers to be held in open or closed position and not in an intermediate position. When used on a boat, the supporting means extended below the base of the hatch so that the danger of head injury was always present.
  • the supporting means included a spring held leverage which required great strength to overcome when chang ing the position of the cover from closed to open position. This condition negatived the usefulness of an escape hatch for a child or injured person.
  • the present invention overcomes these undesirable limitations.
  • Figure l is a perspective view showing the new and improved closure stop.
  • Figure 2 is a front elevational view of the same.
  • Figure 3 is a side elevational view showing the new and improved closure stop with the hatch cover in closed position.
  • Figure 4 is a view similar to Figure 3, showing the hatch cover in partially opened position.
  • Figure 5 is a view similar to Figure 3, showing the hatch cover in fully opened position.
  • FIG. 1 through 5 The exemplary embodiment of the invention illustrated in Figures 1 through 5 is used in conjunction with the hinged cover of a bulkhead comprising a box frame 11 to which a cover 12 is pivotally mounted by means of hinges 13 and 14.
  • the invention relates in particular to supporting means for the hinged cover 12, two such supporting means Patented July 2, 1957 being provided, as indicated generally at 16-16, each connected to the inner wall of the respective side of frame 11 by means of a bracket 15 and to the underside of the cover 12 by means of a bracket 17 and each comprising a linkage embodying a relatively long lever arm 18 provided with an elongated slot 20 in one end, a shorter lever arm 21 and two coil springs 22 and 23.
  • lever arm 18 is pivotally secured as at 24 to bracket 17.
  • the lower end of lever arm 21 is pivotally secured as at 25 to bracket 15.
  • the opposite end of lever arm 21 is provided with a lug 26.
  • Adjacent that end a stud 27 is fixed in the body of lever arm 21 and it extends beyond the body on either side so that one end of springs 22 and 23 can be fixed to stud 27 on opposite sides of the lever arm 21.
  • the other end of springs 22 and 23 are fixed to a stud as at 24.
  • Stud 27 rides in elongated slot 20 pivotally uniting lever arm 18 with lever arm 21 and constituting the fulcrum point of the linkage.
  • brackets 17 pivotally mounting lever arms 18 at 24 are secured to the underside of the cover 12 adjacent the edges of its opposite sides respectively and substantially to the rear of midway of its front and rear edges, while brackets 15 pivotally mounted lever arm 21 at 25 are fastened to the inner walls of the corresponding side panel of frame 11 of the bulkhead adjacent the upper forward end portions thereof.
  • lever arms 18 and 21 lie encased in the space above the lower edge of frame 11 and the underside of cover 12.
  • the stud 27 of the fulcrum point being at its extreme limit in elongated slot 20 produces maximum tension on springs 22, 23.
  • the short lever arms 21 of the linkages swing upwardly carrying the studs 27 of the fulcrum points upwardly, while the long lever arms 18 remain almost parallel with the cover 12 thereby permitting the rounded edges of short lever arms 21 to contact the underside of cover 12 and hold it in partially opened position.
  • Stud 27 of the fulcrum point is now located in the opposite end of elongated slot 20.
  • the springs 22, 23 are in minimum tension position.
  • Metal plates 30 may be secured to cover 12 to provide tracks for lever arms 21 to ride across.
  • stud 27 at the fulcrum point must be manually pushed to cause short lever arms 21 to pivot around point 25 lifting lugs 26 away from long lever arms 18 until the rounded surface of short lever arms 21 contact plate 30. Further pressure on the cover will cause stud 27 to ride the length of elongated slot 20, thereby tensioning springs 22, 23 until the cover 12 engages frame 11, closing the hatch.
  • a closure stop for a cover hinged to a frame comprising a long lever arm and a short lever arm, means for pivotally mounting one end of said long lever arm and one end of said short lever arm to said cover and frame, respectively, said long lever arm having an elongated slot, means on said short lever arm to pivotally engage said elongated slot and resilient means engaging said short lever arm to urge the free end of said short lever arm toward the pivotal point of said long lever arm.
  • a closure stop for a cover hinged to a frame comprising a first bracket-provided with a first stud, fastened to said cover, a second bracket provided with a second stud, fastened to said frame, a long lever arm having an elongated slot in one end is pivotally mounted on its opposite end to said first stud, a short lever arm having a lug in one end is provided with a third stud fastened in and extending beyond One side, said short lever arm is pivotally mounted on its opposite end to said second stud with said third stud engaging said elongated slot and resilient means interposed between said first and said third stud.
  • a closure stop for a cover hinged to a frame comprising a first bracket provided with a first stud, fastened to said cover, a second bracket provided with a second stud, fastened to said frame, a long lever arm having an elongated slot in one end is pivotally mounted on its opposite end to said first stud, a short lever arm having a lug in one end is provided with a third stud fastened in and extending beyond either side, and is pivotally mounted on its opposite end to said second stud with said third stud pivotally engaging said elongated slot and two coil springs, one on either side of said long lever arm, fastened on one end to said first stud and on the other end to said third stud.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Description

July 2, 1957 H. READ 2,797,838
CLOSURE STOP Filed June '3. 1954 INVENTOR. LEONARD H. READ ATTORNEY United States Patent CLOSURE STOP Leonard H. Read, Hoxsie, R. I.
Application June 3, 1954, Serial No. 434,105
3 Claims. (Cl. 217-60) This invention relates to closure stops for hinged members and more particularly to improved supporting means for a hinged cover such as, a hatch cover, bulkhead box cover, automobile hood, record player cabinet cover and the like.
An object of the present invention is to provide a superior hinged cover supporting means which will retain a cover in closed position, partially opened position or fully opened position.
Another object of the present invention is to provide a superior hinged hatch cover supporting means which when the cover is closed does not protrude below the level of the base of the hatch.
Another object of the present invention is to provide a hinged hatch cover supporting means which will automatically close when stepped on when the hatch cover is in partially opened position.
And still another object of the present invention is to provide a hinged escape hatch cover supporting means which will permit a small child to move the escape hatch cover from closed to open position.
Other objects of the present invention will become apparent in part and be pointed out in part in the following specification.
In the past hinged cover supporting means permitted covers to be held in open or closed position and not in an intermediate position. When used on a boat, the supporting means extended below the base of the hatch so that the danger of head injury was always present.
The supporting means included a spring held leverage which required great strength to overcome when chang ing the position of the cover from closed to open position. This condition negatived the usefulness of an escape hatch for a child or injured person. The present invention overcomes these undesirable limitations.
Referring to the drawings wherein like reference characters refer to like parts.
Figure l is a perspective view showing the new and improved closure stop.
Figure 2 is a front elevational view of the same.
Figure 3 is a side elevational view showing the new and improved closure stop with the hatch cover in closed position.
Figure 4 is a view similar to Figure 3, showing the hatch cover in partially opened position.
Figure 5 is a view similar to Figure 3, showing the hatch cover in fully opened position.
The exemplary embodiment of the invention illustrated in Figures 1 through 5 is used in conjunction with the hinged cover of a bulkhead comprising a box frame 11 to which a cover 12 is pivotally mounted by means of hinges 13 and 14.
Since the bulkhead shown herein i merely for the purpose of illustrating an embodiment of the invention, other structural details of the bulkhead not essential to an understanding of the present invention are omitted.
The invention relates in particular to supporting means for the hinged cover 12, two such supporting means Patented July 2, 1957 being provided, as indicated generally at 16-16, each connected to the inner wall of the respective side of frame 11 by means of a bracket 15 and to the underside of the cover 12 by means of a bracket 17 and each comprising a linkage embodying a relatively long lever arm 18 provided with an elongated slot 20 in one end, a shorter lever arm 21 and two coil springs 22 and 23.
The upper end of lever arm 18 is pivotally secured as at 24 to bracket 17. The lower end of lever arm 21 is pivotally secured as at 25 to bracket 15. The opposite end of lever arm 21 is provided with a lug 26. Adjacent that end a stud 27 is fixed in the body of lever arm 21 and it extends beyond the body on either side so that one end of springs 22 and 23 can be fixed to stud 27 on opposite sides of the lever arm 21. The other end of springs 22 and 23 are fixed to a stud as at 24. Stud 27 rides in elongated slot 20 pivotally uniting lever arm 18 with lever arm 21 and constituting the fulcrum point of the linkage.
As shown in the drawing, the brackets 17 pivotally mounting lever arms 18 at 24 are secured to the underside of the cover 12 adjacent the edges of its opposite sides respectively and substantially to the rear of midway of its front and rear edges, while brackets 15 pivotally mounted lever arm 21 at 25 are fastened to the inner walls of the corresponding side panel of frame 11 of the bulkhead adjacent the upper forward end portions thereof. Thus, when the cover is in its normal closed position, as shown in Figure 3, lever arms 18 and 21 lie encased in the space above the lower edge of frame 11 and the underside of cover 12.
The stud 27 of the fulcrum point being at its extreme limit in elongated slot 20 produces maximum tension on springs 22, 23. On raising the cover 12 as indicated in Figures 1, 2, 4 and 5, the short lever arms 21 of the linkages swing upwardly carrying the studs 27 of the fulcrum points upwardly, while the long lever arms 18 remain almost parallel with the cover 12 thereby permitting the rounded edges of short lever arms 21 to contact the underside of cover 12 and hold it in partially opened position. Stud 27 of the fulcrum point is now located in the opposite end of elongated slot 20. The springs 22, 23 are in minimum tension position. Metal plates 30 may be secured to cover 12 to provide tracks for lever arms 21 to ride across.
Further movement of the cover upwardly draws lever arms 18, 21 into a straight line with lugs 26 abutting long lever arms 18, thereby limiting the pivotal movement of short lever arms 21. The upward movement of the cover 12 merely causes short lever arms 21 to pivot around stud 27, the fulcrum point with the stud 27 remaining in the end of elongated slot 20 and springs 22, 23 remaining in minimum tension position.
To close the cover 12, stud 27 at the fulcrum point must be manually pushed to cause short lever arms 21 to pivot around point 25 lifting lugs 26 away from long lever arms 18 until the rounded surface of short lever arms 21 contact plate 30. Further pressure on the cover will cause stud 27 to ride the length of elongated slot 20, thereby tensioning springs 22, 23 until the cover 12 engages frame 11, closing the hatch.
The invention may be carried out in other specific ways than those herein set forth without departing from the spirit and essential characteristics of the invention, and the present embodiments are, therefore, to be considered in all respect as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.
What I claim is:
1. A closure stop for a cover hinged to a frame comprising a long lever arm and a short lever arm, means for pivotally mounting one end of said long lever arm and one end of said short lever arm to said cover and frame, respectively, said long lever arm having an elongated slot, means on said short lever arm to pivotally engage said elongated slot and resilient means engaging said short lever arm to urge the free end of said short lever arm toward the pivotal point of said long lever arm.
2. A closure stop for a cover hinged to a frame comprising a first bracket-provided with a first stud, fastened to said cover, a second bracket provided with a second stud, fastened to said frame, a long lever arm having an elongated slot in one end is pivotally mounted on its opposite end to said first stud, a short lever arm having a lug in one end is provided with a third stud fastened in and extending beyond One side, said short lever arm is pivotally mounted on its opposite end to said second stud with said third stud engaging said elongated slot and resilient means interposed between said first and said third stud.
3. A closure stop for a cover hinged to a frame comprising a first bracket provided with a first stud, fastened to said cover, a second bracket provided with a second stud, fastened to said frame, a long lever arm having an elongated slot in one end is pivotally mounted on its opposite end to said first stud, a short lever arm having a lug in one end is provided with a third stud fastened in and extending beyond either side, and is pivotally mounted on its opposite end to said second stud with said third stud pivotally engaging said elongated slot and two coil springs, one on either side of said long lever arm, fastened on one end to said first stud and on the other end to said third stud.
References Cited in the file of this patent UNITED STATES PATENTS 644,337 Seng Feb. 27, 1900 1,544,657 Langer July 7, 1925 2,254,088 Peterson Aug. 26, 1941 2,358,561 Davis Sept. 19, 1944 FOREIGN PATENTS 345,929 Great Britian Mar. 23, 1931
US434105A 1954-06-03 1954-06-03 Closure stop Expired - Lifetime US2797838A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072320A2 (en) * 1981-08-06 1983-02-16 Yvon Godest Roof-light with wing-frame construction
EP1508477A1 (en) * 2003-08-22 2005-02-23 Renault s.a.s. Loading platform for a luggage compartment of a vehicle
AU2007100094B4 (en) * 2007-02-07 2010-02-04 Kencraft Marine Pty Ltd Boat

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US644337A (en) * 1900-01-11 1900-02-27 Seng Co Lid-operating mechanism for box-couches.
US1544657A (en) * 1923-04-09 1925-07-07 Langer Harry Garage-door fastener
GB345929A (en) * 1929-09-23 1931-03-23 Dennis Frank Meo Improvements in struts for the lids of gramophone cabinets and the like
US2254088A (en) * 1938-07-09 1941-08-26 Chicago Forging & Mfg Co Automobile hood and hinge
US2358561A (en) * 1942-01-05 1944-09-19 Harold G Davis Hinge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US644337A (en) * 1900-01-11 1900-02-27 Seng Co Lid-operating mechanism for box-couches.
US1544657A (en) * 1923-04-09 1925-07-07 Langer Harry Garage-door fastener
GB345929A (en) * 1929-09-23 1931-03-23 Dennis Frank Meo Improvements in struts for the lids of gramophone cabinets and the like
US2254088A (en) * 1938-07-09 1941-08-26 Chicago Forging & Mfg Co Automobile hood and hinge
US2358561A (en) * 1942-01-05 1944-09-19 Harold G Davis Hinge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072320A2 (en) * 1981-08-06 1983-02-16 Yvon Godest Roof-light with wing-frame construction
EP0072320A3 (en) * 1981-08-06 1983-07-06 Yvon Godest Roof-light with wing-frame construction
EP1508477A1 (en) * 2003-08-22 2005-02-23 Renault s.a.s. Loading platform for a luggage compartment of a vehicle
FR2858956A1 (en) * 2003-08-22 2005-02-25 Renault Sa LOADING TRAY FOR A MOTOR VEHICLE BOX
AU2007100094B4 (en) * 2007-02-07 2010-02-04 Kencraft Marine Pty Ltd Boat

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