The present invention relates generally to drawer retaining systems or drawer retention mechanisms incorporated into a piece of furniture that prevents unintentional and unwanted outward sliding of the drawer, especially during tipping of the piece of furniture. The present invention also relates to a piece of furniture including or incorporating such drawer retaining systems and drawer retention mechanisms.
The present invention also relates to a drawer sliding mechanism for pieces of furniture that requires a certain amount of force to open. This prevents toddlers and infants unable to exert such force from opening the drawer and potentially causing tipping of the furniture when the drawer would be open and susceptible to being pulled downward causing it to tip over.
The present invention also relates to methods for regulating opening of a drawer of a piece of furniture to prevent inadvertent opening of the drawer and also opening of the drawer during tipping of the piece of furniture.
Furniture tipping accidents and deaths are on the rise. The majority many of toddler furniture pieces, typically dressers, are anywhere from about 16 inches to about 24 inches deep and often toddlers can grab the top of the dresser, grab the top drawer of the dresser and even climb into the bottom drawer of the dresser before the parent is aware of this. Top drawers of these dressers often have heavy contents in them further making the dresser easier to tip over, which when it occurs, often results in the toddler getting severely hurt, sometimes even rushed to the hospital and even more worrisome, a tragic death.
Often, dressers tip over when an open drawer is pulled downward. The present invention seeks to reduce or eliminate the possibility of toddlers and infants from being able to open drawers of pieces of furniture and thereby reduce the potential for tipping over arising from open drawers.
It is an object of at least one embodiment of the present invention to provide new and improved systems for integrating or incorporating into pieces of furniture to prevent drawers of the furniture from sliding out during tipping over of the piece of furniture.
It is another object of at least one embodiment of the present invention to provide new and improved drawer retention mechanisms integrated or incorporated into pieces of furniture to prevent drawers of the furniture from easily being slidable outward unless a specific movement of the drawer is undertaken.
It is yet another object of at least one embodiment of the present invention to provide methods for regulating opening of a drawer of a piece of furniture to prevent inadvertent opening of the drawer and also opening of the drawer during tipping of the piece of furniture.
A piece of furniture such as a dresser in accordance with one embodiment of the invention includes a frame having a front, a drawer slidable through the front of the frame into the frame and alternatively slidable partly out of the frame, and which drawer has first and second opposed side walls, and a drawer retention mechanism arranged between the first side wall of the drawer and a respective portion of the frame alongside the first side wall. The drawer retention mechanism includes an elongate, horizontal track on one of the first side wall or the respective portion of the frame alongside the first side wall, and which track is defined between an upper part and a lower part. There is a first stop on the upper part including a rear surface and an angled front surface, and a movable, elongate rail and a second stop on the other of the first side wall or the respective portion of the frame alongside the first side wall. The rail and track are positioned relative to one another such that the rail is movable in the track.
The first and second stops are positioned relative to one another to cause contact of the front surface of the second stop and the rear surface of the first stop to prevent sliding of the drawer out of the frame and such that the angled rear surface of the second stop comes into contact with and slides over the angled front surface of the first stop during insertion of the drawer into the frame.
In one embodiment, the first stop is spaced apart a distance from the second stop such that a distance between the rear surface of the first stop and the front surface of the second stop is equal to or larger than a thickness of a front panel of the drawer.
Another embodiment of a piece for furniture in accordance with the invention includes a frame having a front, a drawer slidable through the front of the frame into the frame and alternatively partly out of the frame and which has opposed side walls, and a drawer retention mechanism arranged between each side wall and a respective portion of the frame alongside that side wall. Each drawer retention mechanism includes a movable, elongate rail, an elongate, horizontal track in which the rail is movable, a front well at a frontend region, an optional rear well at a rear end region spaced apart from the front well with the front and rear wells opening to a common direction, and a spring-loaded plunger that projects into the front or rear well when the drawer is in a closed state. The plunger has a compressed state when projecting against the straight portion of the rail.
In one embodiment, the front well and rear well when present are formed on the rail and the plunger projects into the track. In this case, the straight portion of the rail is between the front and rear wells, and the plunger projects into the front well when the drawer is in the closed state. If the front and rear wells open in a downward direction, the plunger projects upward into the front well when the drawer is in the closed state or against the straight portion of the rail. In each drawer retention mechanism, the plunger can project upward into the rear well when the drawer is in a maximum safe open state, and this hinders continued movement of the drawer out of the frame.
Also, in each drawer retention mechanism, the track may be defined between an upper part and a lower part, and the plunger arranged in a front region of the lower part. The plunger may have a hemispherical shaped or otherwise curved plunging portion, and a compression spring having one end against a surface of the portion and an opposite end in a well in the lower part. Also, in each drawer retention mechanism, the front well can have a greater depth than a depth of the rear well. In one embodiment, in each drawer retention mechanism, the rail is attached to the side wall and the track is formed on or as part of the frame.
The invention, together with further objects and advantages thereof, may best be understood by reference to the following description taken in conjunction with the accompanying drawings, wherein like reference numerals identify like elements, and wherein:
In the embodiments disclosed herein, a dresser including a plurality of drawers is often used as an example of a piece of furniture for which the drawer slide-prevention mechanism during tipping of the furniture may be used, and in which the drawer slide-prevention mechanism may be integrated or incorporated. The drawer slide-prevention mechanisms of the invention can be used on other types of furniture in addition to dressers and are not limited to use with only dressers. Also, the dressers may include one or more drawers in any of the sections therein.
Referring first to
The front of the dresser 10 may be a panel with apertures through which the drawers 14 pass when sliding into and out of the interior of the frame 12. There may also be interior, side panels if there are, for example, two or more columns of drawers.
Each drawer slide support 16 includes a track 18 defined between an upper part 20 on the frame 12 having a substantially planar lower surface and a lower part 22 on the frame 12 having a substantially planar upper surface, which parts 20, 22 may be integral with the frame 12 of the dresser 10 or separate members that are attached thereto, e.g., the interior surface of the side panels alongside the drawers 14. These parts 20, 22 may be made of any suitable material, e.g., wood or metal, and define the generally horizontal track 18 since it is desired that the drawer 14 opens horizontally.
Dresser 10 includes a drawer slide-out prevention system 24 that has a first stop 26 at the front, upper region of the upper part 20, projecting upward relative to an upper surface thereof behind the first stop 26, and a second stop 28 on each drawer 14 positioned relative to the first stop 26 to provide for the functional effect described below. The first stop 26 has a rear face 30 that serves as a stop surface and an angled front surface 32 that forms an upward-facing ramp when viewed toward a rear of the frame 12. The rear face 30 may be contiguous with the upper surface of the upper part 20. The first stop 26 therefore has a triangular shape projecting upward from the upper surface of the upper part 20 on the frame 12 that defines the track 18 below it. The first stop 26 is not required to be attached to the upper part 20 defining the track 18 but this is a preferred construction.
The second stop 28 has a front face 34 that serves as a stop surface and an angled rear surface 36 that forms a downward-facing ramp when viewed toward a front of the frame 12. The second stop 86 therefore has a triangular shape projecting downward from the upper surface of the side panel 14A of the drawer 14. Other shapes are possible provided the front face 34 is capable of serving as a barrier and the angled rear surface 36 is angled suitably rearwardly. The characteristics of the top surface of the triangular-shaped second stop 28 are essentially inconsequential provided it does not interfere with the opening or closing movement of the drawer 14.
The slopes of the angled front surface 32 and angled rear surface 36 should be selected to be the same or similar, and at whatever angles are determined to provide for easy pushing of the second stop 28 over the first stop 26 in order to close the drawer 14, described below.
Drawer slide-out prevention system 24 may be used together with the drawer retention mechanism 52 described below with reference to
The particular shape of the surfaces of the first and second stops 26, 28 can vary from that shown, provided the stops 26, 28 engage with one another to prevent forward movement of the drawer 14 out of the frame 12 unless the drawer 14 is lifted to a position in which the second stop 28 is able to clear the first stop 26 in a vertical direction.
That is, in order to open the drawer 14 from the fully closed state shown in
Once the second stop 28 is vertical above the first stop 26, the person then pulls the drawer 14 forward as shown in
Moreover, when the dresser 10 is tipped forward as shown in
Preferably, there is a set of first and second stops 26, 28 on each side of the drawer 14 (only one side is shown but the same configuration is present on the other side of the drawer 14), and possibly on each side of every drawer 14 in a piece of furniture. Nonetheless, the drawer slide-out prevention system 24 may be used selectively on only a portion of the drawers of a piece of furniture.
Although the dresser 10 is susceptible to tipping over when one of the drawers 14 is open, presumably since an adult would open the drawer 14 and not a toddler or infant, the adult would close the drawer 14 after use and thus the dresser 10 would not remain in a position with an open drawer 14 and thus would not be susceptible to being tipped over by a toddler or infant pulling an open drawer downward.
To insert the drawer 14, the user pushes the drawer 14 inward until the second stop 28 abuts against the first stop 26 and is in contact therewith as shown in
In the embodiments illustrated in
The embodiment of the dresser 10 shown in
However, since it is not always possible or desirable to leave spaces 40 between the front panel 38 of the drawers 14 the overlying part of the frame 12 of the dresser 10, in another embodiment of the invention shown in
In this position, the front panel 38 of the drawer 14 is more forward than the front panel 38 of the drawer 14 about it and as such allows the drawer 14 to be lifted without interference from the front panel 38 of the drawer 14 above. Obviously there needs to be a correlation between the thickness of the front panel 38 and the space 42 between the rear surface 30 of the first stop 26 and the front surface 34 of the second stop 28, with the latter being equal to or greater than the thickness of the front panel 38. With this configuration, it is possible to provide the front panels 38 of the drawers to be almost flush against one another at their upper and lower edges as can be gleaned from
Using the drawer slide-out prevention system 24, the invention also includes a method for regulating opening of the drawer 14 of the dresser 10 including a frame 12 having a front through which the drawer 14 slides into the frame and partly out of the frame 12, and a drawer retention mechanism between a side wall of the drawer 14 and a respective portion of the frame 12 alongside the side wall. The drawer retention mechanism includes an elongate, horizontal track 18 on one of the side wall or the respective portion of the frame 12 alongside the side wall, and which track 18 is defined between the upper part 20 and the lower part 22. In the illustrated embodiment of
The drawer opening regulating method involves arranging the first stop 26 on the upper part 20 and which has preferably the flat and planar rear surface 30, vertically oriented and perpendicular to the horizontal upper surface of the upper part 20 rearward of the first stop 26, and the angled front surface 32 which angles forward and downward to a location approximately in line with the upper surface of the upper part 20, and thus faces the front of the dresser 10. The second stop 28 and the rail 44 are arranged on the other of the side wall or the respective portion of the frame 12 alongside the side wall (on the side 14A of the drawer 14 in the illustrated embodiment). The rail 44 and the track 18 are positioned relative to one another such that the rail 44 is movable in the track 18. The second stop 28 preferably has a flat and planar front surface 34, vertically oriented and perpendicular to the horizontal upper and/or lower surfaces of the drawer 14 or its side panel 14A, and the angled rear surface 32 which angles rearward and upward and thus faces the rear of the dresser 10.
The first and second stops 26, 28 are positioned relative to one another to cause contact of the front surface 34 of the second stop 28 and the rear surface 30 of the first stop 26 which prevents sliding of the drawer 14 out of the frame 12 and such that the angled rear surface 36 of the second stop 28 comes into contact with and slides over the angled front surface 32 of the first stop 26 during insertion of the drawer 14 into the frame 12.
As in the embodiment of
Referring now to
Each drawer retention mechanism 52 includes an elongate track 58 into which a spring-loaded plunger 60 projects and a cooperating elongate rail 62 attached to a side wall 54A of the drawer 54 and that is movable through and in a longitudinal direction of the track 54. The rail 62 includes a pair of concave wells 64, 66, one at each end region of the rail 62, and into which the plunger 60 projects depending on the position of the rail 62 relative to the plunger 60. Between the wells 64, 66, the rail 62 has a straight, elongate portion 68. As shown, the wells 64, 66 open downward while the plunger 60 is configured to spring upward when not pressed downward (the reverse configuration is also a possibility). The plunger 60 thus has a compressed state in which it is maintained below the track 58 by the elongate portion 68 of the rail 62, and a spring 70 therein is compressed, and an extended state in which it projects into one of the wells 64, 66, and the spring 70 therein is expanded. When in the extended state projecting into the front or rear well 64, 66, the spring 70 generates a temporary stop to the movement of the drawer 54.
The rear well 66 is optional and indeed, a drawer retention mechanism 52 may be provided without the rear well 66 and be functional to achieve the object of drawer retention sought by the mechanism. The optional rear well 66 engages with the plunger 60 to establish the maximum pulled-out safe position of the drawer 54, but other means to achieve this pull-out limit may be provided in the invention, including those known to people skilled in the art to which this invention pertains.
Each track 58 may be defined between an upper part 72 of the frame 56 having a planar lower surface and a lower part 74 of the frame 56 having a planar upper surface, which parts 72, 74 may be integral with the frame 56 of the dresser 50 or separate members that are attached thereto. These parts 72, 74 may be made of any suitable material, e.g., wood or metal, and define the generally horizontal track 58 since it is desired that the drawer 54 open horizontally. The plunger 60 is situated in a front region of the lower part 74. Its position is coordinated to the dimensions of the drawer 54 and dresser 50 in general so that the drawer 54 is in its fully closed state when the plunger 60 enters into the front well 64. The parts 72, 74 may even be formed from a single member.
Each of the wells 64, 66 preferably has soft lead-in and lead-out easements, especially at the rear of the front well 64 and the front of the rear well 66 since the upper surface of the plunger 60 will move over these parts when moving into the elongate portion 68 of the rail 62. In one embodiment, an additional plunger is provided at the rear of the track 58 to aid in retention of the drawer 54 and in this case, the easement at the rear of the rear well 66 should also be soft.
Plunger 60 has a curved plunging portion 76 at its top and the spring 70 enters into a cavity 78 in the plunging portion 76 with the other end of the spring 70 preferably being fixed at the bottom of a well 80 in the lower part 74 (
The depth of the front well 64 can be deeper than the depth of the rear well 66 to allow the spring-loaded plunger 60 to form a more forceful safety stop when the drawer 54 is closed. An advantage of this is that in the event the dresser 50 is tipped forward by a toddler, the drawer 54 would resist moving forward to cause injury by hitting the toddler in the face or head. When the drawer 54 is in a partly open state, the plunger 60 will slide along the straight, elongate portion 68 of the rail 62 during continued forward movement of the drawer 54 until a maximum safe open state of the drawer 54 is reached in which the plunger 60 projects into the rear well 66, and thereby the drawer 54 is prevented from moving fully outward and apart from the dresser 50.
In use, when a person wants to open the drawer 54 of the dresser 50, the person must exert a force to overcome the spring force or resistance that is urging the plunger 60 into the front well 64. This force should be greater than the force that a toddler can exert to thereby prevent the toddler from opening the drawer 54, and possibly even a child 3-5 years old. Determination of the magnitude of this force is possible based on the characteristics of the spring force provided by the spring 70 and the easements at the edges of the well 64. Once the plunger 60 is urged downward into the well 80 of the lower part 74 defining the track 58, it remains there by pressure provided by the elongate portion 68 of the rail 62.
In this embodiment, the rail 62 includes the wells 64, 66 and the plunger 60 is incorporated into the lower part 74 defining the track 58. The reverse configuration is also possible, i.e., constructing the rail 62 to include the plunger 60 (which would be at a rear of the rail) and two wells in the upper or lower part 72, 74 defining the track 58 (one at each of forward and rear end regions). In such an embodiment, the plunger would move upon movement of the drawer while the wells would remain stationary (instead of the wells moving and the plunger staying stationary as in the illustrated embodiment).
Furthermore, although in dresser 50, the side rail 62 is attached to the side wall 54A of the drawer 54 and the plunger 60 is mounted in the lower track 74 attached to or part of the frame 56 of the dresser 50, these components can be reversed. That is, it is possible to attach the rail 62 to the frame 56 of the dresser 50 and the upper and lower parts 72, 74 and plunger 60 incorporated into the drawer 54.
While particular embodiments of the invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects, and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of the invention.
This application is a continuation-in-part of U.S. patent application Ser. No. 17/483,903 filed Sep. 24, 2021 which is a continuation-in-part of U.S. patent application Ser. No. 17/443,615 filed Jul. 27, 2021 which is a divisional of U.S. patent application Ser. No. 17/194,401 filed Mar. 8, 2021, now U.S. Pat. No. 11,103,067, which is a continuation-in-part of U.S. patent application Ser. No. 17/094,979 filed Nov. 11, 2020, now U.S. Pat. No. 10,939,761, which is a continuation-in-part of U.S. patent application Ser. No. 16/992,397 filed Aug. 13, 2020, now U.S. Pat. No. 10,905,241, which is a continuation of U.S. patent application Ser. No. 16/986,932 filed Aug. 6, 2020, now U.S. Pat. No. 10,813,456, which is a continuation-in-part of U.S. patent application Ser. No. 16/799,909 filed Feb. 25, 2020, now U.S. Pat. No. 10,758,046, and also a continuation-in-part of U.S. patent application Ser. No. 16/799,941 filed Feb. 25, 2020, now U.S. Pat. No. 10,786,080, and U.S. patent application Ser. No. 16/799,909 claims the benefit under 35 U.S.C. § 119 of U.S. provisional patent application Ser. No. 62/944,425 filed Dec. 6, 2019, and U.S. provisional patent application Ser. No. 62/949,664 filed Dec. 18, 2019, all of which are incorporated by reference herein. This application is also related to, on the grounds that it includes common disclosure as, U.S. patent application Ser. No. 16/935,335 filed Jul. 22, 2020, now U.S. Pat. No. 10,856,659, which is also incorporated by reference herein.
Number | Name | Date | Kind |
---|---|---|---|
4370007 | Fler | Jan 1983 | A |
4458964 | Hardy | Jul 1984 | A |
6250730 | Roth et al. | Jun 2001 | B1 |
6478393 | Kim | Nov 2002 | B2 |
6682158 | Lai | Jan 2004 | B2 |
6997527 | Cheng | Feb 2006 | B2 |
7040725 | Mao-Chin | May 2006 | B1 |
7232195 | Yang | Jun 2007 | B2 |
8196939 | Bustle et al. | Jun 2012 | B2 |
10750863 | Nugent | Aug 2020 | B2 |
10905241 | Stravitz | Feb 2021 | B1 |
10932569 | Held | Mar 2021 | B2 |
20170021958 | Shelton | Jan 2017 | A1 |
20220007834 | Stravitz | Jan 2022 | A1 |
Number | Date | Country | |
---|---|---|---|
62949664 | Dec 2019 | US | |
62944425 | Dec 2019 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 17194401 | Mar 2021 | US |
Child | 17443615 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 16986932 | Aug 2020 | US |
Child | 16992397 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 17483903 | Sep 2021 | US |
Child | 17581146 | US | |
Parent | 17443615 | Jul 2021 | US |
Child | 17483903 | US | |
Parent | 17094979 | Nov 2020 | US |
Child | 17194401 | US | |
Parent | 16992397 | Aug 2020 | US |
Child | 17094979 | US | |
Parent | 16799909 | Feb 2020 | US |
Child | 16986932 | US | |
Parent | 16799941 | Feb 2020 | US |
Child | 16799909 | US |