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US-12624587-B2 - Window open and close mechanism

US12624587B2US 12624587 B2US12624587 B2US 12624587B2US-12624587-B2

Abstract

A mechanism for a covering such as an encasement window or door or awning is provided. The mechanism includes an arm, on which a slot is configured. The slot includes a straight section and an angled section. The arm also includes a hole that is offset from the centerline of the straight section and disposed between the angled section and an end of the arm. A pin shaft is disposed in the hole and held in place by a cover member and a movable member, enabling the arm to rotate about the pin shaft. A rivet pin is disposed in the slot and fixedly connected to a fixed member. When the movable member moves, the arm moves such that the hung sash is unlocked from the fixed frame of the covering, and the angled section engages the rivet pin, causing the arm to rotate to open the covering.

Inventors

  • Min Zhang

Assignees

  • Long Ten Technology Inc.

Dates

Publication Date
20260512
Application Date
20240129
Priority Date
20230203

Claims (18)

  1. 1 . A mechanism, comprising: an arm comprising a slot, the slot comprising a straight section that is substantially parallel to a length of the arm and an angled section that is at an angle relative to the length of the arm, a hole disposed between an end of the slot and an end of the arm distal from the straight section, and a centre of the hole is offset from a centreline of the straight section; a rivet pin, at least partially disposed in the slot, the slot is slidable relative to the rivet pin, and the rivet pin is engageable with the angled section; and a pin shaft, at least partially disposed in the hole, such that the arm is rotatable about the pin shaft; a movable element that includes a receptacle configured to receive a first portion of the pin shaft such that the pin shaft moves with the movable element, the movable element comprises a channel that is offset from the receptacle, and the rivet pin passes through the channel to be received in a fixed element; wherein a distance between the rivet pin and the pin shaft remains constant in a direction perpendicular to a length of the channel in a plane defined by the receptacle and the channel and the rivet pin is stationary whether the arm moves or is stationary.
  2. 2 . The mechanism of claim 1 , wherein the fixed element is configured to fixedly attach to a fixed frame.
  3. 3 . The mechanism of claim 2 , wherein the fixed element comprises a projection that is configured to be at least partially received in the channel, and the rivet pin is received in the projection.
  4. 4 . The mechanism of claim 2 , further comprising a rod, which comprises an aperture that is configured to receive the movable element.
  5. 5 . The mechanism of claim 4 , wherein the rod is configured to be movably attached to the fixed frame.
  6. 6 . The mechanism of claim 5 , further comprising a hung sash that is connected to the fixed frame by a hinge, allowing the hung sash to rotate about the hinge, wherein the rod comprises a projection; the hung sash comprises a retainer member; and the projection and the retainer member are engageable to prevent the hung sash from rotating away from the fixed frame.
  7. 7 . The mechanism of claim 6 , wherein a handle is disposed on the fixed frame, and the handle is operatively connected to the rod, such that a rotation of the handle causes the rod to move along the fixed frame.
  8. 8 . The mechanism of claim 7 , wherein a movement of the rod comprises a first portion wherein the straight section slides about the rivet pin and causes the projection to disengage from the retainer member, and a second portion wherein the angled section engages the rivet pin such that the arm rotates about the pin shaft.
  9. 9 . The mechanism of claim 8 , further comprising a slider disposed at one end of the arm distal from the slot, the slider is configured to be installed on the hung sash, and the slider is slidable with respect to an upright of the hung sash when the arm rotates.
  10. 10 . The mechanism of claim 9 , wherein when the hung sash is fully open, the arm is in a locked position.
  11. 11 . The mechanism of claim 10 , wherein the arm is substantially perpendicular to a side of the fixed frame and a side of the hung sash in the locked position.
  12. 12 . The mechanism of claim 1 , further comprising a cover member that comprises a groove that a head of the rivet pin is movably received therein, and a receptacle that is configured to receive a second portion of the pin shaft.
  13. 13 . The mechanism of claim 1 , wherein the pin shaft comprises an enlarged portion that comprises a spheroidal surface that is received in the hole, and the hole defines a spheroidal inner surface, wherein the spheroidal surface and the spheroidal inner surface cooperate to allow a spheroid joint like connection.
  14. 14 . The mechanism of claim 1 , wherein the angle is larger than 0 degrees and smaller than 90 degrees.
  15. 15 . The mechanism of claim 14 , wherein the angle is between 20 and 70 degrees.
  16. 16 . The mechanism of claim 15 , wherein the angle is 45 degrees.
  17. 17 . A covering for an opening in a building, the covering comprising the mechanism of claim 1 .
  18. 18 . The covering of claim 17 , wherein the covering is a window or a door.

Description

CROSS-REFERENCES This application claims priority of Canadian patent application No. 3188624, filed on Feb. 3, 2023, the contents of which is incorporated herein by reference in their entirety TECHNICAL FIELD This disclosure relates to a covering for openings of buildings in general. In particular, it relates a mechanism for opening the covering such as windows and doors for the openings. BACKGROUND Casement or awning windows or doors are commonly used for allowing airflow while preventing insects and such from entering the building by using nets. For example, a net is installed on a fixed frame, while glass is installed on a movable hung sash. When opening the covering, the hung sash is moved away from the fixed frame, allowing airflow, while the net prevents insects and such from entering the building. As such, there is a need for a mechanism that enables opening the hung sash in a controlled manner. It is also desirable for the mechanism to lock the hung sash in the fully open position such that the hung sash does not close suddenly, for example, because of wind gusts. SUMMARY A mechanism for opening and closing a covering for a building, such as a casement or awning windows or doors, is provided. The mechanism includes an arm, which includes a slot. The slot includes a straight section that is substantially parallel to the length of the arm and an angled section. The angle between the angled section and the straight section is larger than 0 and smaller than 90 degrees, preferably between 20-70 degrees, more preferably between 30-60 degrees, and most preferably 45 degrees. The arm includes a hole that is offset from the centerline of the straight section and is disposed between the angled section and an end of the arm distal from the straight section. The mechanism also includes a rivet pin that is at least partially disposed in the slot and is slidable in the slot. The rivet pin is received in a fixed element that is fixedly attached to a fixed frame. The mechanism further includes a movable element that receives a part of a pin shaft in a receptacle. The movable element includes a channel that is offset from the receptacle and the rivet pin passes through the channel to be received in the fixed element. The pin shaft has an enlarged portion that comprises a spheroidal surface that is received in the hole of the arm, and the hole defines a spheroidal inner surface. As such, the pin shaft and the hole cooperate to allow a spheroid joint like connection. A cover member is included in the mechanism, which includes a recess that receives a portion of the pin shaft and a groove that receives a head of the rivet pin and allow the rivet pin to move in the groove. The fixed element comprises a projection that is configured to be at least partially received in the channel, and the rivet pin is received in the projection. The mechanism further includes a rod that is movably attached to the fixed frame that is a part of an encasement covering, which also includes a hung sash that is openable from the fixed frame. The rod includes a projection and the hung sash includes a retainer member, and the projection and the retainer member cooperate to prevent the hung sash from opening from the fixed frame. The rod is operatively connected to a handle. When the handle is rotated, the rod moves along the fixed frame. The movement of the rod comprises a first portion in which the straight section slides about the rivet pin and the projection disengages from the retainer member such that the hung sash is allowed to be opened, and a second portion in which the angled section engages the rivet pin, causing the arm to rotate about the pin shaft. A slider is configured on an end of the arm that is distal from the slot, and the slider is configured to be installed on the hung sash. When the arm rotates, the slider slides along a frame of the hung sash. When the hung sash is fully open, the arm is in a locked position, and is substantially perpendicular to a side of the fixed frame and a side of the hung sash. BRIEF DESCRIPTION OF THE DRAWINGS The disclosure will be explained in more detail in the following with reference to embodiments and to the drawing in which are shown: FIG. 1 shows a perspective and isolated view of a casement window in the open position that incorporates one embodiment of the mechanism of this disclosure. FIG. 2 shows a top view of a window that is installed in an opening in a building while in the open position. FIG. 3 shows a perspective view of one embodiment of the assembled mechanism. FIG. 4 shows an exploded view of the mechanism of FIG. 3 when the mechanism is in the closed position. FIG. 5 shows an exploded view of the mechanism of FIG. 3 when the mechanism is in the open position, together with a rod. FIG. 6A shows a perspective view of the underside of one embodiment of the cover member. FIG. 6B shows the bottom view of the cover member of FIG. 6A. FIG. 6C shows a side view of the cover member of F