An adjustable stop limits sliding sash window/door travel between a closed position and a safe position, where the safe position is a position less than a full-open position. The stop can be installed upon window/door master frames during initial manufacturing, or as an after-market option while the
An adjustable stop limits sliding sash window/door travel between a closed position and a safe position, where the safe position is a position less than a full-open position. The stop can be installed upon window/door master frames during initial manufacturing, or as an after-market option while the sash windows/doors are in service in a building. The safety stop may be comprised of a housing and a tumbler being pivotally mounted within a cavity in the housing, with a spring to bias the tumbler out of an opening in the housing. Mounting is by a flange extending from the housing, with spacers of varying thickness that are capable of removably attaching thereon to accommodate sash to master frame height differences. A safety member may be added to either the tumbler or housing to create a double action stop, requiring disengagement of the safety member, prior to toggling of the stop.
대표청구항▼
1. A stop, for use in limiting sliding of a sash member with respect to a master frame, between a closed position of the sash member and a partially opened position of the sash member, the partially opened position being between the closed position and a full-open position of the sash member, said s
1. A stop, for use in limiting sliding of a sash member with respect to a master frame, between a closed position of the sash member and a partially opened position of the sash member, the partially opened position being between the closed position and a full-open position of the sash member, said stop comprising; a housing, said housing comprising a cavity and at least first and second openings interconnecting with said cavity;a tumbler, said tumbler comprising a first end and a second end; said tumbler being pivotally mounted in said housing cavity; said second end of said tumbler comprising a bearing surface;a biasing member, said biasing member biasing said second end of said tumbler to pivot outward from said housing; a portion of said biasing member configured to selectively contact a contoured feature of said housing to limit said outward pivotal travel of said tumbler to be capable of occupying at least a first tumbler position and a second tumbler position, wherein said tumbler is configured to be toggled between said first tumbler position and said second tumbler position by a force applied at said first end of said tumbler;a mounting flange configured to mount said stop to the master frame, said mounting flange protruding from said housing and being offset from said bearing surface; said mounting flange comprising a top surface and a bottom surface;a safety member, said safety member being configured to slide relative to said tumbler toward an engaged position in which said safety member engages said housing so as to block pivotal movement of said tumbler while in said first tumbler position, until said safety member is disengaged, wherein said disengagement of said safety member comprises sliding said safety member toward said tumbler so as to be clear of said housing;a spring configured to bias said safety member toward said engaged position; andwherein when said tumbler is in said first tumbler position, said bearing surface limits movement of the sash member; and wherein when said tumbler is in said second tumbler position, said bearing surface permits movement of the sash member;wherein the force applied at said first end of said tumbler causes said tumbler to toggle from said first tumbler position to a retracted tumbler position, said first tumbler position being a fully extended tumbler position, said retracted tumbler position being a position wherein at least a portion of said second end of said tumbler is positioned within said housing cavity; and wherein upon removal of the force from said first end of said tumbler, said tumbler is biased from said retracted tumbler position into said second tumbler position; andwherein said second tumbler position is a position where said at east a portion of said second end of said tumbler protrudes out from said housing. 2. The stop according to claim 1, wherein when said stop is installed on the master frame that slidably receives the sash member, and wherein when said tumbler is in said second tumbler position, said at least a portion of said second end of said tumbler protruding out from said housing permits movement of the sash member past said tumbler by the sash member contacting a curved surface of said tumbler and deflecting said tumbler into an intermediate tumbler position, said intermediate tumbler position being a position between said second tumbler position and said retracted tumbler position, said tumbler occupying said intermediate tumbler position until the sash member moves to a position between the partially opened position and the closed position. 3. The stop according to claim 2, wherein when the sash member contacts said curved surface of said tumbler to deflect said tumbler into said intermediate tumbler position, and wherein when the sash member has thereafter moved to be between said partially opened position and said closed position, said tumbler is biased back into said second tumbler position by said biasing member. 4. The stop according to claim 2, wherein when the sash member contacts said curved surface of said tumble to deflect said tumbler into said intermediate tumbler position, and when the sash member has moved to be between said partially opened position and said closed position, said portion of said biasing member selectively contacting said contoured feature of said housing no longer limits said outward pivotal travel of said tumbler to said second tumbler position, and said tumbler is biased back to said first tumbler position. 5. The stop according to claim 3, wherein when said tumbler occupies said second tumbler position and another force is applied at said tumbler first end, the another force causes said tumbler to toggle from said second tumbler position to said retracted tumbler position, and wherein releasing the another force from said first end of said tumbler permits said tumbler to be biased from said retracted tumbler position to said first tumbler position. 6. The stop according to claim 5, wherein said spring comprises a helical torsion spring, said helical torsion spring comprising a helical coil with first and second arms extending therefrom. 7. The stop according to claim 6, wherein said helical coil and said first arm of said torsion spring are affixed to said tumbler, and wherein said second arm terminates in a post, said post forming said portion of said biasing member configured to selectively contact said contoured feature to bias said tumbler relative to said housing. 8. The stop according to claim 7, wherein said stop further comprises a first spacer block, said first spacer block configured to be removably attached to said mounting flange bottom surface, and having a thickness sized to adjust for a variation in a height difference between the sash member and the master frame. 9. The stop according to claim 8, wherein said first spacer block has a top surface, a portion of said top surface being capable of removably attaching into said bottom surface of said mounting flange by either of said first spacer block top surface or said mounting flange bottom surface comprising at least one post, and the other of said first spacer block top surface or said mounting flange bottom surface comprising at least one respective orifice. 10. The stop according to claim 9, wherein said at least one post is removably received in said at least one respective orifice by a sliding friction fit; and wherein said at least one respective orifice is in said mounting flange and begins at said mounting flange bottom surface and runs at least part way between said bottom surface of said mounting flange and said top surface of said mounting flange. 11. The stop according to claim 10, wherein said first spacer block further comprises at least one respective orifice on a bottom surface for releasably receiving a respective post of a second spacer block, said second spacer block being of a thickness different than said thickness of said first spacer block, said second spacer block further comprising at least one respective orifice on a bottom surface. 12. The stop according to claim 11, wherein a plurality of additional spacer blocks comprise different thicknesses, and wherein selection of one or more spacer blocks from among said first, second, and said plurality of additional spacer blocks permits accommodation of said variations in a height difference. 13. The stop according to claim 12, wherein each of said first, second, and plurality of additional spacer blocks comprises a periphery with a shape that matches a peripheral shape of said mounting flange of said stop. 14. The stop according to claim 13, wherein said mounting flange protrudes out from said housing at a position between a top and a bottom of said housing; and wherein said mounting flange is generally parallel to said bottom of said housing but offset therefrom by a certain amount. 15. The stop according to claim 14, wherein a total thickness of one or more of said first, second, and said plurality of additional spacer blocks is approximately equal to said certain amount that said mounting flange is offset from the bottom of the housing minus the sash member to master frame height difference, plus a clearance amount. 16. The stop according to claim 15, wherein said housing comprises at least first and second side walls, said first and second side walls being roughly parallel to each other and being separated to create said cavity. 17. The stop according to claim 16, wherein said tumbler is pivotally mounted to said housing using one or more pins. 18. The stop according to claim 17, wherein said pins comprise an integral pin protruding from each of a first side and a second side of said tumbler; and wherein each of said pins of said tumbler are pivotally received in a respective orifice in said first and second housing side walls. 19. The stop according to claim 18, wherein said top of said housing further comprises a top wall connecting at least a portion of said first and second side walls. 20. The stop according to claim 1, wherein said mounting flange protrudes out from said housing at a position between a top end and a bottom end of said housing; and wherein said mounting flange is at a non-orthogonal angle to first and second side walls of said housing. 21. A stop, for use in limiting movement of a sash window or door with respect to a master frame, said stop comprising: a housing;a tumbler, said tumbler comprising a first end and a second end; said tumbler being pivotally mounted to said housing; said second end of said tumbler comprising a bearing surface;a first biasing member, said first biasing member biasing said second end of said tumbler to pivot outward from said housing; said tumbler being configured for pivotal movement between at least a first tumbler position and a second tumbler position; a portion of said biasing member selectively contacting a portion of a contoured feature on said housing to limit said outward pivotal travel of said tumbler at said second tumbler position;a mounting flange, said mounting flange extending from said housing; said mounting flange being offset from a bottom of said housing;a safety member, said safety member being configured to slide relative to said tumbler toward an engaged position in which said safety member engages said housing so as to block pivotal movement of said tumbler while said tumbler is in said first tumbler position, said pivotal movement of said tumbler being blocked until said safety member is disengaged, wherein said disengagement of said safety member comprises sliding said safety member toward said tumbler so as to be clear of said housing;a second biasing member configured to bias said safety member toward said engaged position;wherein when said tumbler is in said first tumbler position, said bearing surface of said tumbler limits movement of the sash window or door between a closed position and a partially open position, said partially open position being between the closed position and a full open position; said tumbler permits movement of the sash window or door beyond the partially open position when in said second tumbler position;wherein said tumbler pivots between said first tumbler position and said second tumbler position by a force being selectively applied at said first end of said tumbler;wherein the force being selectively applied at said first end of said tumbler causes said tumbler to toggle from said first tumbler position to a retracted position, said retracted position being a position wherein at least a portion of said second end of said tumbler is retained within said housing; and wherein upon removal of the force from said first end of said tumbler, said tumbler is biased from said retracted position to said second tumbler position; andwherein said second tumbler position is a position wherein at least a curved surface of said second end of said tumbler protrudes out from said housing. 22. The stop according to claim 21, wherein when said tumbler is in said second tumbler position, said at least a curved surface of said second end of said tumbler protrudes out from said housing so as to permit movement of the sash window or door, by the sash window or door contacting said curved surface to overcome said biasing of said tumbler by said first biasing member to deflect said tumbler into an intermediate position, said intermediate position being a position between said second tumbler position and said retracted position, said tumbler occupying said intermediate position until the sash window or door moves to a position between the partially opened position and the closed position, thereby permitting said tumbler to be biased by said first biasing member back to said second tumbler position. 23. The stop according to claim 22, wherein when said tumbler is in said second tumbler position, another force being applied at said first end of said tumbler causes said tumbler to toggle from said second tumbler position to said retracted position, and wherein upon removal of the another force from said first end of said tumbler, said tumbler is biased by said first biasing member from said retracted position to said first tumbler position. 24. A stop, for use in limiting movement of a sash window or door with respect to a master frame, said stop comprising: a housing;a tumbler, said tumbler comprising a first end and a second end; said tumbler being pivotally mounted to said housing; said second end of said tumbler comprising a beating surface;a first biasing member, said first biasing member biasing said second end of said tumbler to pivot outward from said housing; said tumbler being configured for pivotal movement between at least a first tumbler position and a second tumbler position; a portion of said first biasing member selectively contacting a portion of a contoured feature on said housing to limit said outward pivotal travel of said tumbler at said second tumbler position;a mounting flange, said mounting flange extending from said housing; said mounting flange being offset from a bottom of said housing;a safety member, said safety member being configured to slide relative to said tumbler toward an engaged position in which said safety member engages said housing so as to block pivotal movement of said tumbler while said tumbler is in said first tumbler position, said pivotal movement of said tumbler being blocked until said safety member is disengaged, wherein said disengagement of said safety member comprises sliding said safety member toward said tumbler so as to be clear of said housing;a second biasing member configured to bias said safety member toward said engaged position;wherein when said tumbler is in said first tumbler position, said bearing surface of said tumbler limits movement of the sash window or door between a closed position and a partially open position, said partially open position being between the closed position and a full open position; said tumbler permits movement of the sash window or door beyond the partially open position when in said second tumbler position; andwherein said first biasing member comprises a helical torsion spring, said helical torsion spring comprising a helical coil with first and second arms extending therefrom. 25. The stop according to claim 24, wherein said helical coil and said first arm of said torsion spring are affixed to said tumbler, and wherein said second arm terminates in a post, said post forms said portion of said first biasing member that selectively contacts said portion of said contoured feature of said housing so as to bias said tumbler relative to said housing.
Draheim Harvey J. (Weyauwega WI) Charlson Glenn T. (New London WI) Beiswenger John L. (Salem WI) Brunner Merlin A. (New London WI), Crib dropside including latch mechanism.
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