US3347583A - Door fastening means - Google Patents

Door fastening means Download PDF

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Publication number
US3347583A
US3347583A US489683A US48968365A US3347583A US 3347583 A US3347583 A US 3347583A US 489683 A US489683 A US 489683A US 48968365 A US48968365 A US 48968365A US 3347583 A US3347583 A US 3347583A
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Prior art keywords
carrier
keeper
members
door
wing portions
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US489683A
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John E Hallberg
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W H MINER Inc
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W H MINER Inc
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/02—Locks for railway freight-cars, freight containers or the like; Locks for the cargo compartments of commercial lorries, trucks or vans
    • E05B83/08—Locks for railway freight-cars, freight containers or the like; Locks for the cargo compartments of commercial lorries, trucks or vans with elongated bars for actuating the fastening means
    • E05B83/10—Rotary bars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1049—Rigid

Definitions

  • DOOR FASTENING MEANS Filed Sept. 23, 1965 3 Sheets-Sheet 5 INVENTOR. Job/7 E: Wo/Abe/j United States Patent 3,347,583 DOOR FASTENING MEANS John E. Hallberg, Hammond, Ind., assignor to W. H. Miner, Inc., Chicago, 11]., a corporation of Delaware Filed Sept. 23, 1965, Ser. No. 489,683 13 Claims. (Cl. 292-494) ABSTRACT OF THE DISCLOSURE A cargo container door fastening apparatus having frame-mounted universal keepers and locking bar-mounted universal carriers rotatably engageable therewith without regard to right or left handedness with the interengageable parts having complementary cam surfaces to provide leverage locking and vertical aligning and stabilizing features.
  • My present invention relates generally to door fastening means and more particularly to an improved cam latching arrangement for the doors of railway cars, trailers, containers and the like.
  • cam and keeper arrangement it is common practice to use a cam and keeper arrangement in connection with the door of a transport vehicle or freight container to tightly latch the door.
  • carrier members having cam portions are attached to the top and bottom of an operating bar, with the cam portions being adapted to engage keeper members mounted on the door frame above and below the door.
  • the upper and lower keeper members are reversely arranged, that is, the upper keeper member is inverted in respect to the lower keeper member, and the upper keeper member is open at the bottom while the lower keeper member is open at the top.
  • the cam portions of the carrier members must also be reversely arranged in order that they may be properly interengaged with their respective keeper members.
  • FIGURE 1 is a fragmentary and foreshortened elevational view of a door frame and a door, with which the door fastening means of my present invention has been incorporated;
  • FIGURE 2 is an elevational view, on an enlarged scale, of the lower carrier and keeper members of FIGURE 1;
  • FIGURE 3 is a horizontal view, partly in section and partly in elevation, taken substantially along the line 33 in FIGURE 2, looking in the direction indicated by the arrows;
  • FIGURE 4 is a perspective view of the universal keeper member of my present invention.
  • FIGURE 5 is a perspective view of the universal carrier member of my present invention.
  • FIGURE 6 is a vertical sectional view of the lower portion of the carrier member, taken substantially along the line 6-6 in FIGURE 3, looking in the direction indicated by the arrows;
  • FIGURE 7 is a vertical sectional view of the lower portion of the carrier member, taken substantially along the line 7 7 in FIGURE 3, looking in the direction indicated by the arrows;
  • FIGURE 8 is an elevational view of the lower portion of the carrier member, taken substantially along the line 88 in FIGURE 3, looking in the direction indicated by the arrows;
  • FIGURE 9 is a horizontal sectional view, taken substantially along the line 9-9 in FIGURE 8, looking in the direction indicated by the arrows.
  • FIGURE 1 there is indicated generally by the reference numeral 10 a conventional door frame which may, for example, be located in the side or end of an enclosed transport vehicle or freight conveyance.
  • the door frame 10 comprises horizontal upper and lower structural elements 12 and 14 and a vertical side structural element 16.
  • a door 18 Disposed within the door frame 10 for closing the same is a door 18 which is pivotally mounted along its one vertical edge to the side door frame element 16 by means of hinges 20.
  • the door frame 10 may be closed by a single door 18, or by a pair of such doors, as those skilled in the art will readily understand.
  • the door fastening means of my present invention which is adapted to secure the door 18 within the door frame 10, comprises a pair of keeper members 22 mounted, as by bolts 24, to the upper and lower door frame elements 12 and 14.
  • Projecting forwardly from the web portion 26 is a horizontal rib portion 34 having a forward face 36 parallel to the planar mounting surface 32 and having upper and lower surfaces 38 and 40 which taper toward each other both in a forward direction and in a lateral direction toward one end of the keeper member adjacent the mounting flange portion 28.
  • the keeper member 22 further includes arm means in the form of vertically spaced arm portions 42 and 44 which project forwardly therefrom at the one end of the keeper member adjacent the mounting flange portion 28.
  • the arm portions 42 and 44 are arranged at an acute angle relative to the forward face 36 of the rib portion 34, and have vertical inner and outer parallel faces 46 and 48. It is to be understood that the keeper member 22 is symmetrical about its 3 longitudinal axis and hence may be used interchangeably at the top and bottom of the door frame.
  • a vertically extending hollow operating shaft or rod 50 rotatably journalled in bracket members 52 and 53 suitably secured, as
  • Means for rotating the shaft 50 is provided in the form of a horizontal hand lever 54 normally retained in a conventional seal assembly indicated generally by the reference numeral 56.
  • Both carrier members 58 Secured within the upper and lower ends of the hollow shaft 50 are shaft extensions or carrier members 58 which may be rotatably guided, along with the hollow shaft 50, in the bracket members 52.
  • Both carrier members 58 are of identical construction, and each comprise, as shown in FIGURES -9, vertically spaced wing portions 60 and 62 having facing cam surfaces 64 and 66 principally on one side of the carrier member.
  • the cam surfaces 64 and 66 taper toward each other transversely of the carrier member and taper away from each other in a direction away from the center of the carrier member.
  • Each of the wing portions 60 and 62 is also formed with laterally spaced nose sections 68 and 70 on the other side of the. carrier member generally opposite the cam surfaces 64 and 66.
  • each wing portion 60 and 62 is formed with vertical end surfaces 72 and 74 extending angularly toward each other in the direction of the nose sections 68 and 70.
  • the end surfaces 72 and 74 respectively extend to either side of and are perpendicular to planes (indicated by the broken lines A-A and B-B in FIGURE 3) passing through the axis of rotation of the carrier member 58 and shaft 50.
  • the carrier member 58 is provided with a transversely extending center guide portion 76 intermediate of the wing portions 60 and 62.
  • center guide portion 76 has an outer cam section 78 ex tending between the. nose sections 68 and 70 with upper and lower surfaces 80 and 82 tape-ring toward each other in an outward direction.
  • the center guide portion 76 is also formed with inner cam surfaces 84 and 86 which extend angularly away from each other in the direction of the outer cam section 78.
  • the inner cam surfaces 84 and 86 preferably lie in planes perpendicular to the vertical end surfaces 72 and 74 of the wing portions 60 and 62. Since the carrier members 58 are symmetrical about the line 77 in FIGURE 3, they may be used interchangeably at the top and bottom of shaft 50.
  • the carrier members 58 are rotatable in one direction relative to the keeper members 22 to effect interengagement of these members, and are rotatable. in the other direction to effect disengagement of the members.
  • FIGURES l, 2 and 3 The elementsof the door fastener of my present invention are shown in a locked or closed position in FIGURES l, 2 and 3. In this position, the end surfaces 72 of the lower carrier and the end surfaces 74 of the upper carrier fully engage the adjacent inner faces 46 of the upper and lower keepers 22.
  • the hand lever 54 is released from the seal assembly 56 and swung in a horizontal plane toward a forwardly extending position so that the shaft 50 and shaft extensions or carriers 58 are caused to rotate clockwise, as viewed in FIG- URE 3,, on their common axis.
  • the door 18 is first urged slightly inwardly of the door frame until the nose sections 68 of the lower carrier and the nose sections 70 of the upper carrier are rotated past the planes perpendicular to the inner faces 46 and passing through the axis of rotation of the carrier members.
  • the inner cam surfaces 84 and 86 of the center guide portions 76 engage the forward faces 36 of the rib portions 34 of the lower and upper carriers to provide reaction points for initial opening leverage.
  • the outer cam sections 78 of the center guide portions 76 move between and through the arm portions 42 and 44 of the keeper members 22 while the nose sections 70 of the lower carrier and the nose sections 68 of the upper carrier engage the outer faces the door 18 may be swung outwardly of the plane of the.
  • the door 18 In closing the door opening defined by the door fram 10, the door 18 is swung toward the plane of the frame 10 with the carrier members 58 being positioned closely adjacent the keeper members 22. Then, the hand lever 54 is pivoted toward the position shown in FIGURE 1 whereupon the shaft is rotated for causing interengagement of thecarrier and keeper members. In this connection, the outer cam sections 78 of the center guide portions 76 are moved between and through the arm portions 42 and 44 of the keeper members whereby to initially vertically align the carrier and keeper members to compensate for any mis-alignment of the door and frame.
  • the nose sections 68 of the lower carrier and the nose sections 70 of the upper carrier engage the inner faces 46 of the arm portions 42 and 44, of the lower and upper carriers to provide reaction points for closing leverage.
  • Engagement of the cam surfaces 64 and 66 of the wing portions and 62 with the upper and lower surfaces 38 and 40 of the rib portions 34 produces a wedging action in both vertical directions.
  • the carriers and keeper members are further vertically aligned and are thereafter held against relative vertical movement or displacement.
  • the door 18 In approaching the fully closed position, the door 18 is urged slightly inwardly of the position shown in FIGURE 1 to permit the nose sections 68 of the lower carrier and the nose sections of the upper carrier to be rotated over-center so that the end surfaces 72 of the lower carrier and the end surfaces 74 of the upper carrier may fully engage the inner faces 46 of the arm portions 42 and 44 whereupon the carrier members 58 are restrained from rotating relative to the keeper members 58. Furthermore, the projection of the nose sections beyondv the plane AA prevents unlocking rotation of the carrier membersuntil' the door is rst urged sufficiently inwardly to permit the nose sectiOnstO be rotated past the over-center positions. Thus, outward forces imposed on the door will not cause unlocking of the door fastening means of my present invention but rather will tend to urge the carrier members further into the keeper members whereby to prevent ac cidental springing open of the door.
  • each of said keeper members having a horizontal for wardly projecting rib portion and having vertically spaced arm means projecting forwardly from said rib portion at one end thereof; each of said carrier members having a pair of vertically spaced wing portions each of which portionsis characterized by a cam surface on one side of said carrier member, by a nose section on the other side of said carrier member and by a vertical end surface; said shaft being rotatable in one direction to rotate said carrier members relative to said keepermembers to effect interengagement of said members, said nose sections of said wing portions being engageable with said arm means to provide a reaction point for closing leverage, said cam surfaces of said wing portions upon engagement with said rib portions serving to align said
  • each of said keeper members having a planar mounting surface and a horizontal forwardly projecting rib portion with a forward face parallel to said planar mounting surface, said rib portion having upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof at an acute angle relative to said forward face of said rib portion, and said arm portions having vertical inner and outer parallel faces; each of said carrier members having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction
  • Door fastening means comprising a keeper member having a horizontal forwardly projecting rib portion, said keeper member having a pair of vertically spaced arm means projecting forwardly from said rib portion at one end thereof, a carrier member having a pair of vertically spaced wing portions, each of which wing portions is characterized by a generally horizontally disposed cam surface on one side of said carrier member, by a nose section on the other side of said carrier member and by a vertical end surface, said carrier member being rotatable in one direction relative to said keeper member to effect interengagement of said members, said vertically spaced nose sections of said wing portions being engageable with said pair of vertically spaced arm means of said keeper member to provide a reaction point for closing leverage, said cam surfaces of said wing portions upon engagement With said rib portion serving to align said carrier and keeper members, and said end surfaces of said wing portions when in full engagement with said pair of spaced arm means serving to restrain said carrier member from rotation relative to said keeper member.
  • Door fastening means comprising a keeper member having a horizontal forwardly projecting rib portion, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, each of said wing portions having a nose section on the other side of said carrier member, each of said wing portions having a vertical end surface, said carrier member having a transversely extending center guide portion intermediate of said Wing portions, said center guide portion having an outer cam section laterally of said nose sections, said carrier member being rotatable in one direction relative to said keeper member to effect interengagement of said members, said outer cam section of said center guide portion upon movement between and through said arm portions of said keeper member serving to initially vertically align said carrier and keeper members, said nose sections of said Wing portions being engageable with said arm portions to provide a reaction point for closing leverage, said cam surfaces of said wing portions upon engagement with said rib portion also serving to align said carrier and keeper members and to hold the same
  • Door fastening means comprising a keeper member having a horizontal forwarding projecting rib portion with upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, said arm portions having vertical inner and outer faces, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having a nose section on the other side of said carrier member, each of said wing portions having a vertical end surface, said end surfaces extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section laterally of said nose sections, said carrier member being
  • Door fastening means comprising a keeper member having a horizontal forwardly projecting rib portion with upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, said arm portions having vertical inner and outer faces, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier membensaid cam surfaces tapering toward each other transversely of said carried member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having laterally spaced nose sections on the other side of said carrier member, each of said wing portions having a vertical end surface, said end surfaces extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections
  • Door fastening means comprising a keeper member having a planar mounting surface and a horizontal forwardly projecting rib portion with a forward face parallel to said planar mounting surface, said rib portion having upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof at antacute angle relative to said forward face of said rib portion, said arm portions having vertical inner and outer parallel faces, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having laterally spaced nose sections, on the other side of said carrier member, each of said wing portions having opposed vertical end surfaces extending angularly toward each other in the direction of said nose sections,.
  • said end surfaces each extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion inter-,
  • said center guide portion having an outer cam section extending between said nose sections with upper and lower surfaces tapering toward each other in an outward direction, said center guide portion having inner cam surfaces extending angularly away from each other, in the direction of said outer cam sing to initially vertically align said carrier and keeper members, one of said nose sections of each of said wing portions being engageable with said inner faces of said arm portions to provide a reaction point for closing leverage, :said cam surfaces of said wing portions upon engagement with said upper and lower surfaces of said rib portion also serving to align said carrier and keeper members and to hold the same against relative vertical movement, one of said end surfaces of each of said wing portions when in full engagement with said inner faces of said arm portions serving to restrain said carrier member from rotation relative to said keeper member, said carrier member being rotatable in the other direction relative to said keeper member to effect disengagement of said members, one of said inner cam surfaces of said center guide portion being engageable with said forward face of said rib portion to provide a reaction point for initial opening leverage
  • a keeper member having a horizontal forwarding projecting rib portion with upper and lower surfaces which taper toward each other;
  • said keeper member both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, and said arm portions having vertical inner and outer faces.
  • a keeper member having a planar mounting surface and a horizontal forwardly projecting rib portion with a forward face parallel to said planar mounting surface, said rib portion having upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forward therefrom at said one end thereof at an acute angle relative to said forward face of said rib portion, and said arm portions having vertical inner and outer parallel faces.
  • a carrier member having vertically spaced wing portions with generally horizontally disposed facing cam surfaces on one side of said carrier member, each of said wing portions having a pair of laterally spaced nose sections on the other side of said carrier member, each of said wing portions having opposed vertical end surfaces extending angularly toward each other in the direction of said nose sections.
  • a carrier member having vertically spaced wing portions with generally horizontally disposed facing cam surfaces on one side of said carrier member, each of said wing portions having a pair of laterally spaced nose sections on the other side of said carrier member, each of said wing portions having a vertical end surface, said carrier member having a transversely extending center guide portion intermediate of said wing portions, and said center guide portion having an outer cam section extending between said nose sections.
  • a carrier member having vertically spaced wing portions with generally horizontally disposed facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having a pair of laterally spaced nose sections on the other side of said carrier member, each of said wing portions having a vertical end surface, said end surfaces extending to either side of and being perpendicular to plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections, and said center guide portion having an inner cam surface.
  • a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering awayfrom each other in a direction away from the center of said carrier member, each of said wing portions having laterally spaced nose sec tions on the other side of said carrier member, each of said wing portions having opposed vertical end surfaces extending angularly toward each other in the direction of said noes sections, said end surfaces each extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections with upper and lower surfaces tapering toward each other in an outward direction, said center guide portion having inner cam surfaces extending angularly away from each other in the direction of said outer cam section, and each of said inner cam surfaces lying in a plane perpendicular to the adjacent

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  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Description

ct. 1'7, 1967 J. E. HALLBERG 3,347,583
DOOR FASTENING MEANS Filed Sept. 23, 1965 3 Sheets-Sheet 1 O O O O O O 52 O O O O INVENTOR 1957 J. E. HALLBERG 3,347,583
DOOR FASTENING MEANS Filed Sept. 23, 1965 5 Sheets-Sheet 2 INVENTOR. 74 Job/7 .5/7a//ber5 Oct. 17, 1967 J. E. HALLBERG 3,347,583
DOOR FASTENING MEANS Filed Sept. 23, 1965 3 Sheets-Sheet 5 INVENTOR. Job/7 E: Wo/Abe/j United States Patent 3,347,583 DOOR FASTENING MEANS John E. Hallberg, Hammond, Ind., assignor to W. H. Miner, Inc., Chicago, 11]., a corporation of Delaware Filed Sept. 23, 1965, Ser. No. 489,683 13 Claims. (Cl. 292-494) ABSTRACT OF THE DISCLOSURE A cargo container door fastening apparatus having frame-mounted universal keepers and locking bar-mounted universal carriers rotatably engageable therewith without regard to right or left handedness with the interengageable parts having complementary cam surfaces to provide leverage locking and vertical aligning and stabilizing features.
My present invention relates generally to door fastening means and more particularly to an improved cam latching arrangement for the doors of railway cars, trailers, containers and the like.
It is common practice to use a cam and keeper arrangement in connection with the door of a transport vehicle or freight container to tightly latch the door. Generally, carrier members having cam portions are attached to the top and bottom of an operating bar, with the cam portions being adapted to engage keeper members mounted on the door frame above and below the door. In existing arrangements, the upper and lower keeper members are reversely arranged, that is, the upper keeper member is inverted in respect to the lower keeper member, and the upper keeper member is open at the bottom while the lower keeper member is open at the top. In such arrangements, the cam portions of the carrier members must also be reversely arranged in order that they may be properly interengaged with their respective keeper members. As a result, the upper and lower keeper members cannot be interchanged, and the upper and lower carrier members cannot be interchanged. Hence, time and money are unnecessarily expended in producing, storing, shipping and mounting two different forms of keeper members and two different forms of carrier members.
It is an object of my present invention to provide door fastening means comprised of upper and lower keeper members which are of universal or identical construction so that they may be used interchangeably.
It is another object of my present invention to provide door fastening means comprised of upper and lower carrier members, having cam portions, which are of universal or identical construction so that they may be used interchangeably.
It is another object of my present invention to provide door fastening means, as described, wherein reaction points are provided for affording leverage to force the door within the plane of the frame as the door is being closed.
It is a further object of my present invention to provide door fastening means, as described, which is operative to force the frame and door relatively in a vertical direction to align the same as the door is swung within the plane of the frame, and which is operative to thereafter maintain proper vertical alignment.
It is a further object of my present invention to provide door fastening means, as described, which will not acci dentally become unlocked when outward forces are imposed on the door, for example, as a result of shifting loads within the vehicle or container.
It is a still further object of my present invention to provide door fastening means, as described, wherein reaction points are provided for affording leverage to force the door out of the plane of the frame as the door is being opened.
3,347,583 Patented Oct. 17', 1967 Now in order to acquaint those skilled in the art with the manner of constructing and using door fastening means in accordance with the principles of my present invention, I shall describe in connection with the accompanying drawings a preferred embodiment of my invention.
In the drawings:
FIGURE 1 is a fragmentary and foreshortened elevational view of a door frame and a door, with which the door fastening means of my present invention has been incorporated;
FIGURE 2 is an elevational view, on an enlarged scale, of the lower carrier and keeper members of FIGURE 1;
FIGURE 3 is a horizontal view, partly in section and partly in elevation, taken substantially along the line 33 in FIGURE 2, looking in the direction indicated by the arrows;
FIGURE 4 is a perspective view of the universal keeper member of my present invention;
FIGURE 5 is a perspective view of the universal carrier member of my present invention;
FIGURE 6 is a vertical sectional view of the lower portion of the carrier member, taken substantially along the line 6-6 in FIGURE 3, looking in the direction indicated by the arrows;
FIGURE 7 is a vertical sectional view of the lower portion of the carrier member, taken substantially along the line 7 7 in FIGURE 3, looking in the direction indicated by the arrows;
FIGURE 8 is an elevational view of the lower portion of the carrier member, taken substantially along the line 88 in FIGURE 3, looking in the direction indicated by the arrows; and
FIGURE 9 is a horizontal sectional view, taken substantially along the line 9-9 in FIGURE 8, looking in the direction indicated by the arrows.
Referring now to FIGURE 1, there is indicated generally by the reference numeral 10 a conventional door frame which may, for example, be located in the side or end of an enclosed transport vehicle or freight conveyance. The door frame 10 comprises horizontal upper and lower structural elements 12 and 14 and a vertical side structural element 16. Disposed within the door frame 10 for closing the same is a door 18 which is pivotally mounted along its one vertical edge to the side door frame element 16 by means of hinges 20. The door frame 10 may be closed by a single door 18, or by a pair of such doors, as those skilled in the art will readily understand.
The door fastening means of my present invention, which is adapted to secure the door 18 within the door frame 10, comprises a pair of keeper members 22 mounted, as by bolts 24, to the upper and lower door frame elements 12 and 14. The keeper members 22, which are of identical construction, each comprise, as shown in FIGURES 2, 3 and 4, a central web portion 26, and a pair of mounting flange portions 28 and 30 at the opposite ends thereof, which together define a rear planar mounting surface 32. Projecting forwardly from the web portion 26 is a horizontal rib portion 34 having a forward face 36 parallel to the planar mounting surface 32 and having upper and lower surfaces 38 and 40 which taper toward each other both in a forward direction and in a lateral direction toward one end of the keeper member adjacent the mounting flange portion 28. The keeper member 22 further includes arm means in the form of vertically spaced arm portions 42 and 44 which project forwardly therefrom at the one end of the keeper member adjacent the mounting flange portion 28. The arm portions 42 and 44 are arranged at an acute angle relative to the forward face 36 of the rib portion 34, and have vertical inner and outer parallel faces 46 and 48. It is to be understood that the keeper member 22 is symmetrical about its 3 longitudinal axis and hence may be used interchangeably at the top and bottom of the door frame.
Arranged for operative association with the keeper members 22, as shown in FIGURE 1, is a vertically extending hollow operating shaft or rod 50 rotatably journalled in bracket members 52 and 53 suitably secured, as
by bolts, to the outer face of the door 18. Means for rotating the shaft 50 is provided in the form of a horizontal hand lever 54 normally retained in a conventional seal assembly indicated generally by the reference numeral 56.
Secured within the upper and lower ends of the hollow shaft 50 are shaft extensions or carrier members 58 which may be rotatably guided, along with the hollow shaft 50, in the bracket members 52. Both carrier members 58 are of identical construction, and each comprise, as shown in FIGURES -9, vertically spaced wing portions 60 and 62 having facing cam surfaces 64 and 66 principally on one side of the carrier member. The cam surfaces 64 and 66 taper toward each other transversely of the carrier member and taper away from each other in a direction away from the center of the carrier member. Each of the wing portions 60 and 62 is also formed with laterally spaced nose sections 68 and 70 on the other side of the. carrier member generally opposite the cam surfaces 64 and 66. In addition, each wing portion 60 and 62 is formed with vertical end surfaces 72 and 74 extending angularly toward each other in the direction of the nose sections 68 and 70. The end surfaces 72 and 74 respectively extend to either side of and are perpendicular to planes (indicated by the broken lines A-A and B-B in FIGURE 3) passing through the axis of rotation of the carrier member 58 and shaft 50. Still further, the carrier member 58 is provided with a transversely extending center guide portion 76 intermediate of the wing portions 60 and 62. The
center guide portion 76 has an outer cam section 78 ex tending between the. nose sections 68 and 70 with upper and lower surfaces 80 and 82 tape-ring toward each other in an outward direction. The center guide portion 76 is also formed with inner cam surfaces 84 and 86 which extend angularly away from each other in the direction of the outer cam section 78. The inner cam surfaces 84 and 86 preferably lie in planes perpendicular to the vertical end surfaces 72 and 74 of the wing portions 60 and 62. Since the carrier members 58 are symmetrical about the line 77 in FIGURE 3, they may be used interchangeably at the top and bottom of shaft 50. The carrier members 58 are rotatable in one direction relative to the keeper members 22 to effect interengagement of these members, and are rotatable. in the other direction to effect disengagement of the members.
The elementsof the door fastener of my present invention are shown in a locked or closed position in FIGURES l, 2 and 3. In this position, the end surfaces 72 of the lower carrier and the end surfaces 74 of the upper carrier fully engage the adjacent inner faces 46 of the upper and lower keepers 22. To unlock the door fastening means, the hand lever 54 is released from the seal assembly 56 and swung in a horizontal plane toward a forwardly extending position so that the shaft 50 and shaft extensions or carriers 58 are caused to rotate clockwise, as viewed in FIG- URE 3,, on their common axis. As the carrier members 58 are thus rotated, the door 18 is first urged slightly inwardly of the door frame until the nose sections 68 of the lower carrier and the nose sections 70 of the upper carrier are rotated past the planes perpendicular to the inner faces 46 and passing through the axis of rotation of the carrier members. Simultaneously, the inner cam surfaces 84 and 86 of the center guide portions 76 engage the forward faces 36 of the rib portions 34 of the lower and upper carriers to provide reaction points for initial opening leverage. Next, the outer cam sections 78 of the center guide portions 76 move between and through the arm portions 42 and 44 of the keeper members 22 while the nose sections 70 of the lower carrier and the nose sections 68 of the upper carrier engage the outer faces the door 18 may be swung outwardly of the plane of the.
door frame 10 to a fully opened position.
In closing the door opening defined by the door fram 10, the door 18 is swung toward the plane of the frame 10 with the carrier members 58 being positioned closely adjacent the keeper members 22. Then, the hand lever 54 is pivoted toward the position shown in FIGURE 1 whereupon the shaft is rotated for causing interengagement of thecarrier and keeper members. In this connection, the outer cam sections 78 of the center guide portions 76 are moved between and through the arm portions 42 and 44 of the keeper members whereby to initially vertically align the carrier and keeper members to compensate for any mis-alignment of the door and frame. At this time, the nose sections 68 of the lower carrier and the nose sections 70 of the upper carrier engage the inner faces 46 of the arm portions 42 and 44, of the lower and upper carriers to provide reaction points for closing leverage. Engagement of the cam surfaces 64 and 66 of the wing portions and 62 with the upper and lower surfaces 38 and 40 of the rib portions 34 produces a wedging action in both vertical directions. Thus, the carriers and keeper members are further vertically aligned and are thereafter held against relative vertical movement or displacement. In approaching the fully closed position, the door 18 is urged slightly inwardly of the position shown in FIGURE 1 to permit the nose sections 68 of the lower carrier and the nose sections of the upper carrier to be rotated over-center so that the end surfaces 72 of the lower carrier and the end surfaces 74 of the upper carrier may fully engage the inner faces 46 of the arm portions 42 and 44 whereupon the carrier members 58 are restrained from rotating relative to the keeper members 58. Furthermore, the projection of the nose sections beyondv the plane AA prevents unlocking rotation of the carrier membersuntil' the door is rst urged sufficiently inwardly to permit the nose sectiOnstO be rotated past the over-center positions. Thus, outward forces imposed on the door will not cause unlocking of the door fastening means of my present invention but rather will tend to urge the carrier members further into the keeper members whereby to prevent ac cidental springing open of the door.
While I have shown and described what I believe to be a preferred embodiment of my present invention, it will be understood by those skilled in the art that various rearrangements and modifications may be made therein without, departing from the spirit and scope of my in-.
vention.
I claim:
1. For use with a door frame having upper and lower elements and a door having a vertical edge hinged to the door frame, the combination of a vertically extending shaft rotatably mounted on the outer face of the door, identical keeper members mounted on the upper and lower elements of the frame, and identical carrier members mounted at the upper and lower ends of said shaft; each of said keeper members having a horizontal for wardly projecting rib portion and having vertically spaced arm means projecting forwardly from said rib portion at one end thereof; each of said carrier members having a pair of vertically spaced wing portions each of which portionsis characterized by a cam surface on one side of said carrier member, by a nose section on the other side of said carrier member and by a vertical end surface; said shaft being rotatable in one direction to rotate said carrier members relative to said keepermembers to effect interengagement of said members, said nose sections of said wing portions being engageable with said arm means to provide a reaction point for closing leverage, said cam surfaces of said wing portions upon engagement with said rib portions serving to align said carrier and keeper members, and said vertical end surfaces of said wing portions when in full engagement with said arm means serving to restrain said carrier members from rotation relative to said keeper members.
2. For use With a door frame having upper and lower elements and a door having a vertical edge hinged to the frame, the combination of a vertically extending shaft rotatably mounted on the outer face of the door, identical keeper members mounted on the upper and lower elements of the frame, and identical carrier members mounted at the upper and lower ends of said shaft; each of said keeper members having a planar mounting surface and a horizontal forwardly projecting rib portion with a forward face parallel to said planar mounting surface, said rib portion having upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof at an acute angle relative to said forward face of said rib portion, and said arm portions having vertical inner and outer parallel faces; each of said carrier members having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction away from the center of said car rier member, each of said wing portions having laterally spaced nose sections on the other side of said carrier member, each of said wing portions having opposed vertical end surfaces extending angularly toward each other in the direction of said nose sections, said end surfaces each extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections with upper and lower surfaces tapering toward each other in an outward direction, said center guide portion having inner cam surfaces extending angularly away from each other in the direction of said outer cam section, and each of said inner cam surfaces lying in a plane perpendicular to the adjacent vertical end surfaces of said wing portions; said shaft being rotatable in one direction to rotate said carrier members relative to said keeper members to effect interengagement of said members, said outer cam sections of said center guide portions upon movement between and through said arm portions of said keeper members serving to initially vertically align said carrier and keeper members, one of said nose sections of each of said wing portions being engageable with said inner faces of said arm portions to provide a reaction point for closing leverage, said cam surfaces of said wing portions upon engagement with said upper and lower surfaces of said rib portions also serving to align said carrier and keeper members and to hold the same against relative vertical movement, one of said end surfaces of each of said wing portions when in full engagement with said inner faces of said arm portions serving to restrain said carrier members from rotation relative to said keeper members, said shaft being rotatable in the other direction to rotate said carrier members relative to said keeper members to effect disengagement of said members, one of said inner cam surfaces of said center guide portions being engageable with said forward faces of said rib portions to provide a reaction point for initial opening leverage, said outer cam sections of said center guide portions being movable between and through said arm portions of said keeper members, and the other of said nose sections of each of said wing portions being engageable with said outer faces of said arm portions to provide a reaction point for additional opening leverage. I
3. Door fastening means comprising a keeper member having a horizontal forwardly projecting rib portion, said keeper member having a pair of vertically spaced arm means projecting forwardly from said rib portion at one end thereof, a carrier member having a pair of vertically spaced wing portions, each of which wing portions is characterized by a generally horizontally disposed cam surface on one side of said carrier member, by a nose section on the other side of said carrier member and by a vertical end surface, said carrier member being rotatable in one direction relative to said keeper member to effect interengagement of said members, said vertically spaced nose sections of said wing portions being engageable with said pair of vertically spaced arm means of said keeper member to provide a reaction point for closing leverage, said cam surfaces of said wing portions upon engagement With said rib portion serving to align said carrier and keeper members, and said end surfaces of said wing portions when in full engagement with said pair of spaced arm means serving to restrain said carrier member from rotation relative to said keeper member.
4. Door fastening means comprising a keeper member having a horizontal forwardly projecting rib portion, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, each of said wing portions having a nose section on the other side of said carrier member, each of said wing portions having a vertical end surface, said carrier member having a transversely extending center guide portion intermediate of said Wing portions, said center guide portion having an outer cam section laterally of said nose sections, said carrier member being rotatable in one direction relative to said keeper member to effect interengagement of said members, said outer cam section of said center guide portion upon movement between and through said arm portions of said keeper member serving to initially vertically align said carrier and keeper members, said nose sections of said Wing portions being engageable with said arm portions to provide a reaction point for closing leverage, said cam surfaces of said wing portions upon engagement with said rib portion also serving to align said carrier and keeper members and to hold the same against relative vertical movement, and said end surfaces of said wing portions when in full engagment with said arm portions serving to restrain said carrier member from rotation relative to said keeper member.
5. Door fastening means comprising a keeper member having a horizontal forwarding projecting rib portion with upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, said arm portions having vertical inner and outer faces, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having a nose section on the other side of said carrier member, each of said wing portions having a vertical end surface, said end surfaces extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section laterally of said nose sections, said carrier member being rotatable in One direction relative to said keeper member to effect interengagement of said members, said outer cam section of said center guide portion upon movement between and through said arm portions of said keeper member serving to initially vertically align said carrier and keeper members, said nose sections ofsaid wing portions being engageable with said inner faces of said arm portions to provide a reaction point for closing leverage, said camtsurfaces of said wing portions upon engagement with said upper and lower surfaces of said rib portion also serving to align said carrier and keeper members and to hold the same against relative vertical movement, and said end surfaces of said Wing portions when in full engagement with said inner faces of said arm portions serving to restrain said carrier member from rotation relative to said keeper member.
6. Door fastening means comprising a keeper member having a horizontal forwardly projecting rib portion with upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, said arm portions having vertical inner and outer faces, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier membensaid cam surfaces tapering toward each other transversely of said carried member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having laterally spaced nose sections on the other side of said carrier member, each of said wing portions having a vertical end surface, said end surfaces extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections, said center guide portion having an inner cam surface,.said carrier member being rotatable in one direction relative to said keeper member to effect interengagement of said members, said outer cam section of said center guide portion upon movement between and through said arm portions of said keeper member serving to initially vertically align said carrier and keeper members, one of said nose sections of each of said wing portions being engageable with said inner faces of said arm portions to provide a reaction point for closing leverage, said cam surfaces of said, wing portions upon engagement with said upper and lower surfaces of said rib portion also serving to align saidcarrier and keeper members and to hold the same against relative vertical movement, said end surfaces of said wing portions when in full engagement with said inner faces of said arm portions serving to restrain said carrier member from rotation relative to said keeper member, said carrier member being rotatable in the other direction relative to said keeper member to effect disengagement of said members, said inner cam surface of said center guide portion being engageable with said rib portion to provide a reaction point for initial opening leverage, said outer cam section of said center guide portion being movable between and through said arm portions of said keeper member, and the other of said nose sections of each of said wing portions being engageable with said outer faces of said arm portions to provide a reaction point for additional opening leverage.
7. Door fastening means comprising a keeper member having a planar mounting surface and a horizontal forwardly projecting rib portion with a forward face parallel to said planar mounting surface, said rib portion having upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof at antacute angle relative to said forward face of said rib portion, said arm portions having vertical inner and outer parallel faces, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having laterally spaced nose sections, on the other side of said carrier member, each of said wing portions having opposed vertical end surfaces extending angularly toward each other in the direction of said nose sections,.
said end surfaces each extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion inter-,
mediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections with upper and lower surfaces tapering toward each other in an outward direction, said center guide portion having inner cam surfaces extending angularly away from each other, in the direction of said outer cam sing to initially vertically align said carrier and keeper members, one of said nose sections of each of said wing portions being engageable with said inner faces of said arm portions to provide a reaction point for closing leverage, :said cam surfaces of said wing portions upon engagement with said upper and lower surfaces of said rib portion also serving to align said carrier and keeper members and to hold the same against relative vertical movement, one of said end surfaces of each of said wing portions when in full engagement with said inner faces of said arm portions serving to restrain said carrier member from rotation relative to said keeper member, said carrier member being rotatable in the other direction relative to said keeper member to effect disengagement of said members, one of said inner cam surfaces of said center guide portion being engageable with said forward face of said rib portion to provide a reaction point for initial opening leverage, said outer cam section of said center guide portion being movable between and through said arm portions of said keeper member, and the other of said nose sections of each of said wing portions being engageable with said outer faces of said arm portions to provide a reaction point for additional opening leverage.
8. For use in a door fastener, a keeper member having a horizontal forwarding projecting rib portion with upper and lower surfaces which taper toward each other;
both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forwardly therefrom at said one end thereof, and said arm portions having vertical inner and outer faces.
9. For use in a door fastener, a keeper member having a planar mounting surface and a horizontal forwardly projecting rib portion with a forward face parallel to said planar mounting surface, said rib portion having upper and lower surfaces which taper toward each other both in a forward direction and in a lateral direction toward one end of said keeper member, said keeper member having vertically spaced arm portions projecting forward therefrom at said one end thereof at an acute angle relative to said forward face of said rib portion, and said arm portions having vertical inner and outer parallel faces.
10. For use in a door fastener, a carrier member having vertically spaced wing portions with generally horizontally disposed facing cam surfaces on one side of said carrier member, each of said wing portions having a pair of laterally spaced nose sections on the other side of said carrier member, each of said wing portions having opposed vertical end surfaces extending angularly toward each other in the direction of said nose sections.
11. For use in a door fastener, a carrier member having vertically spaced wing portions with generally horizontally disposed facing cam surfaces on one side of said carrier member, each of said wing portions having a pair of laterally spaced nose sections on the other side of said carrier member, each of said wing portions having a vertical end surface, said carrier member having a transversely extending center guide portion intermediate of said wing portions, and said center guide portion having an outer cam section extending between said nose sections.
12. For use in a door fastener, a carrier member having vertically spaced wing portions with generally horizontally disposed facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering away from each other in a direction away from the center of said carrier member, each of said wing portions having a pair of laterally spaced nose sections on the other side of said carrier member, each of said wing portions having a vertical end surface, said end surfaces extending to either side of and being perpendicular to plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections, and said center guide portion having an inner cam surface.
13. For use in a door fastener, a carrier member having vertically spaced wing portions with facing cam surfaces on one side of said carrier member, said cam surfaces tapering toward each other transversely of said carrier member and tapering awayfrom each other in a direction away from the center of said carrier member, each of said wing portions having laterally spaced nose sec tions on the other side of said carrier member, each of said wing portions having opposed vertical end surfaces extending angularly toward each other in the direction of said noes sections, said end surfaces each extending to either side of and being perpendicular to a plane passing through the axis of rotation of said carrier member, said carrier member having a transversely extending center guide portion intermediate of said wing portions, said center guide portion having an outer cam section extending between said nose sections with upper and lower surfaces tapering toward each other in an outward direction, said center guide portion having inner cam surfaces extending angularly away from each other in the direction of said outer cam section, and each of said inner cam surfaces lying in a plane perpendicular to the adjacent vertical end surfaces of said wing portions.
References Cited UNITED STATES PATENTS 2,451,537 10/ 1948 Dath 292-241 X 3,099,473 7/ 1963 Pastua 292-240 3,212,805 10/1965 Olander 292218 MARVIN A. CHAMPION, Primary Examiner.
EDWARD C. ALLEN, Examiner.
I. R. MOSES, Assisllant Examiner.

Claims (1)

11. FOR USE IN A DOOR FASTENER, A CARRIER MEMBER HAVING VERTICALLY SPACED WING PORTIONS WITH GENERALLY HORIZONTALLY DISPOSED FACING CAM SURFACES ON ONE SIDE OF SAID CARRIER MEMBER, EACH OF SAID WING PORTIONS HAVING A PAIR OF LATERALLY SPACED NOSE SECTIONS ON THE OTHER SIDE OF SAID CARRIER MEMBER, EACH OF SAID WING PORTIONS HAVING
US489683A 1965-09-23 1965-09-23 Door fastening means Expired - Lifetime US3347583A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464729A (en) * 1967-03-22 1969-09-02 Blair Products Sa Device for closing and locking a door,in particular for vehicles and containers
US3544145A (en) * 1967-08-01 1970-12-01 Piero Cerutti Device for blocking a container or van wing
US4087122A (en) * 1975-09-12 1978-05-02 The Bloxwich Lock And Stamping Company Limited Fastening mechanism for doors
US4768816A (en) * 1983-04-14 1988-09-06 Miner Enterprises Inc. Means for sealing or locking a cam action door fastener

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451537A (en) * 1946-11-14 1948-10-19 Miner Inc W H Door fastener
US3099473A (en) * 1961-12-05 1963-07-30 Eastern Co Door control mechanism
US3212805A (en) * 1962-06-20 1965-10-19 Miner Inc W H Door locking and stabilizing mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451537A (en) * 1946-11-14 1948-10-19 Miner Inc W H Door fastener
US3099473A (en) * 1961-12-05 1963-07-30 Eastern Co Door control mechanism
US3212805A (en) * 1962-06-20 1965-10-19 Miner Inc W H Door locking and stabilizing mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464729A (en) * 1967-03-22 1969-09-02 Blair Products Sa Device for closing and locking a door,in particular for vehicles and containers
US3544145A (en) * 1967-08-01 1970-12-01 Piero Cerutti Device for blocking a container or van wing
US4087122A (en) * 1975-09-12 1978-05-02 The Bloxwich Lock And Stamping Company Limited Fastening mechanism for doors
US4768816A (en) * 1983-04-14 1988-09-06 Miner Enterprises Inc. Means for sealing or locking a cam action door fastener

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