The innovation disclosed herein relates to cabinet design and more specifically to a friction controlled mechanism such as a slide assembly to provide a stable movement of a moveable structure such as a drawer in a cabinet.
In the field of cabinet design, and more particularly to slide assemblies or drawer guides, conventional slide assemblies utilize heavy steel roller designs, which have limitations and are expensive. Thus, conventional steel roller designs not only increase cost but also add unnecessary weight to the cabinet. In addition, conventional steel drawers with steel sliders typically have a catch because they do not integrate any translation movement. The conventional steel units simply rely on the fact that if they travel the full extension before they begin to bring the rolling member out they are strong enough all the way through that motion until such time as they engage the second slider. Thus, conventional steel sliders are overdesigned by purpose to work on the cantilever forces imparted.
In addition, in transportation vehicle-based cabinet product lines, conventional steel roller bearing designs employ a near zero friction roller bearing design. This allows the drawer to inadvertently open due to the shifting of inertia in the drawer caused by the movement of the vehicle.
The following presents a simplified summary of the innovation in order to provide a basic understanding of some aspects of the innovation. This summary is not an extensive overview of the innovation. It is not intended to identify key/critical elements of the innovation or to delineate the scope of the innovation. Its sole purpose is to present some concepts of the innovation in a simplified form as a prelude to the more detailed description that is presented later.
The innovation disclosed and claimed herein, in one aspect thereof, comprises a friction controlled mechanism for use on a cabinet assembly. The cabinet assembly includes a stationary structure such as a cabinet, a moveable structure such as a drawer that is moveable in relation to the stationary structure and the friction controlled mechanism. The friction controlled mechanism is attached to each side of the moveable structure. The friction controlled mechanism includes a frame member with a length and a friction based flexible member. The flexible member is wrapped around a perimeter of the frame member such that the flexible member is capable of traveling in opposite directions around the perimeter of the frame member during movement of the moveable structure toward and away from the stationary structure. The flexible member imparts a friction to side rails of both the stationary structure and the moveable structure to provide a controlled stable movement of the moveable structure.
In accordance with another aspect of the innovation, the flexible member has frictional properties that facilitate a controlled stable movement of the moveable structure when a minimal force is applied to the moveable structure while simultaneously preventing the moveable structure from moving when a force exerted on the moveable structure is less than the minimal force.
In accordance with yet another aspect of the innovation, a method of assembling a friction controlled mechanism for use on a cabinet assembly is provided. The method includes providing a frame member, providing a flexible member, wrapping the flexible member around a perimeter of the frame member such that the flexible member is free to travel around the perimeter of the frame member in opposite directions, and attaching a stop to the frame member.
To the accomplishment of the foregoing and related ends, certain illustrative aspects of the innovation are described herein in connection with the following description and the annexed drawings. These aspects are indicative, however, of but a few of the various ways in which the principles of the innovation can be employed and the subject innovation is intended to include all such aspects and their equivalents. Other advantages and novel features of the innovation will become apparent from the following detailed description of the innovation when considered in conjunction with the drawings.
The innovation is now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the subject innovation. It may be evident, however, that the innovation can be practiced without these specific details.
Referring now to the drawings,
Referring again to
The moveable structure 104 includes a moveable upper side rail 108 having a first moveable surface 110 and a moveable lower side rail 112 having a second moveable surface 114 located on each outer side 116 of the moveable structure 104. The upper and lower moveable side rails 108, 112 are substantially parallel to each other.
The stationary structure 106 includes a stationary upper side rail 118 having a first stationary surface 120 and a stationary lower side rail 122 having a second stationary surface 124 (best shown in
The slide assembly 102 includes a frame member 130 and a flexible member 132, shown unassembled in
The frame member 130 can be made from a flexible material to allow the frame member 130 to configure to a contour generated by the moveable upper and lower rail 108, 112. On the other hand, the flexible member 132 can be more rigid and have a more permanent shape. Thus, the flexible member 132 can be made from any suitable material such as but not limited to plastic, wood, metal, composite, alloy, or the like.
The flexible member 132 has frictional properties that facilitate a controlled-stable sliding motion of the moveable structure 104 into and out of the stationary structure 106 with minimal force. On the other hand, the flexible member 132 has frictional properties that prevent the moveable structure 104 from inadvertently moving into and out of the stationary structure 106 when a force applied to the moveable structure 104 is less than the minimal force. Such a force may be due to inertia caused by, for example, the movement of a vehicle in the case of transportation vehicle-based cabinet product lines. Thus, the flexible material can be any material capable of providing a controlled friction movement having the frictional properties mentioned above, such as but not limited to, a hook material, a loop material or a combination thereof, a web type material, roller chain, etc. It is to be appreciated that the use of hook and hook/loop materials employ tolerance absorbing characteristics that can be used in applications different from those described herein. These alternative materials and applications are to be included within the scope of the specification and claims appended hereto.
Referring to
When attached to the moveable structure 104, the flexible member 132 is in contact with the first moveable surface 110 of the moveable upper side rail 108 and the second moveable surface 114 of the moveable lower side rail 112. Further, when attached, the slide assembly 102 is situated such that a front 138 of the slide assembly 102 is disposed approximately halfway between a front 140 and a rear 142 of the moveable structure 104. Thus, approximately half of the slide assembly 102 extends beyond the rear 142 of the moveable structure 104. As a result, when the moveable structure 104 is in a fully extended or open position, as shown in
Referring back to
This arrangement helps distribute loads between the moveable structure 104 and the stationary structure 106. Specifically, as shown in
The slide assembly 102 further includes a stop 146 that prevents over extension of the moveable structure 104 from the stationary structure 106 (see
During operation of the moveable structure 104 into and out of the stationary structure 106, the flexible member 132, due to a pressure from each moveable side rail 108, 112 and each stationary side rail 118, 122, imparts a friction to each of the first moveable surface 110, second moveable surface 114, first stationary surface 120, and second stationary surface 124. The friction causes the flexible member 132 to travel around the frame member 130 in the direction of the double sided arrow “C” depending on the direction of the moveable structure 104 indicated by the double sided arrow “D.” Thus, the flexible member 132 can travel in opposite directions around the perimeter 134 of the frame member 130. The stop 146 limits the travel of the moveable structure 104 out of the opening 128 of the stationary structure 106.
The example slide assembly 102 described above coupled with the friction properties of the flexible member 132 provides a controlled-stable movement of the moveable structure 104 into and out of the stationary structure 106. Further, the slide assembly 102 provides a load/force bearing to the stationary structure 106. Still further, the slide assembly 102 provides positive vertical and supplementary horizontal and translational force/load control. As mentioned above, the slide assembly 102 also provides maximum cantilevered support thereby minimizing a downward tilting of the moveable structure 104 with respect to the stationary structure 106 when in the fully extended or open position. Still yet another advantage to the innovation is that the slide assembly 102 provides a “distributed” loading of the action between the moveable structure 104 and the stationary structure 106 attached in a “cantilevered” configuration.
In an alternative example embodiment shown in
Referring to
In still yet another example embodiment shown in
The embodiment shown in
For example, the innovation described herein can be used in a two-way moveable structure application. For example, an extendable platform (work surface) and/or drawer can move in two directions to opposite sides of a cabinet or a kitchen island. Thus, the moveable structure could be a double sided drawer where the user could access the drawer from opposite sides of the cabinet or island. Whereas, conventional steel sliders include stops that prevent two way directional operation.
In other aspects, the innovation can be employed on moveable structures having a curved (or arched) motion. For example, in this aspect, drawers can be placed or positioned above a user's height whereby, when opened, the drawers move in a downward curved direction for easy accessibility. It will be appreciated that some aspects can employ a latch, catch, lock or other preventative opening system as desired. It should be noted that in some aspects, the movement of the moveable structure can be in an upward direction.
Another aspect can employ dual movement/telescopic moveable structures such as but not limited to work surfaces. It is to be understood and appreciated that the depth of moveable structures can vary, thus, the innovation is not limited to the size of the moveable structure.
Still other aspects can employ one or more slide assemblies driven with a drive mechanism. The drive mechanism can include an axel, gear, and chain configuration, which can be adapted to include a motor to drive the moveable structure. This mechanically or electrically powered motion can assist, for example, with heavy loads and effect remote power to place items in an accessible position or reach of a user.
In yet other aspects, the innovation can be employed as a center-less hinge pivot that is capable of having an off-set mounting surface with a common aligned rotational axis point. In application, the zero point or the axle point of the hinge is in space as open space. Thus, if the innovation is used as a hinge for a door and the door translates and rotates at the same time, one can design a hinge point for a curved door that has no traditionally conceivable mounting surfaces in common in plane. Normally, this would mean that one would have a door that would pivot up at an angle or down at an angle. Alternatively, spacers would have to be used on the door to keep it all on the same hinge plane which makes for extra weight, extra load, and extra cantilevering forces. However, using various upper, mid or lower circular arch dimensions, the innovation can align “non-planer” mounting surfaces to act on a common “in-space” axis point using the center-less device.
Thus, in accordance with the innovation, one can put direct forces on the door at the door hinge off of the inside, one at the top, one at the bottom and even one in the middle. All three of the slide assemblies can be on different mounting points prescribed around the same hinge point, e.g., desirable tilt, non-desirable tilt, flat, etc. This can be accomplished in space simply by changing the arc radius on each of the other hinges. It would not matter if the door was curved or unconventionally (non-planer) shaped. Rather, the mounting surfaces could be as variable as desired.
While many of the aspects described herein refer to a horizontal orientation, it is to be understood that other aspects can employ the slide assembly in a vertically mounted arrangement with a slide assembly at the top and a slide assembly at the bottom. Here, if the slide assemblies are equipped with a gear(s) having an axle in the back, racking can be alleviated and/or eliminated. Thus, even though there is a cantilever load in the worst possible condition, the fact that the slide assemblies are tied together means that the top will not allow the bottom to rack more than the tolerance that is built into the system. Essentially, the slide assemblies not only can be used in a horizontal mode, but can also be used in a vertical mode.
In all, it is to be appreciated that the slide assembly can employ a flexible member made of most anything that actually allows for bearing the friction that is intended to be beared, translating a member that is intended to be translated and moving in a back and forth motion in a smooth, normal fashion while maximizing load distribution (e.g., utilizing half in, half out slide assembly design).
It is to be appreciated that aspects of the innovation can employ a dampener, a spring loaded device or a power device that can assist in motion and/or counter force as required or desired.
In addition, conventional steel drawers with steel sliders typically have a catch because they do not integrate any translation movement. The traditional steel units simply rely on the fact that if they travel the full extension before they begin to bring the rolling member out they are strong enough all the way through that motion until such time as they starting bringing the second member of the slider out. Thus, traditional steel sliders are overdesigned by purpose to work on the cantilever forces imparted. In contrast, the innovation described herein offers more robustness. Specifically, the innovation discloses a notion of applying a translation motion while bearing on an integral system for load distribution of an overhanging cantilever device. In operation, the slide assembly can retain aligned position, half in and half out, relative to the maximum utility of the design of some sliders, some conventional sliders interface on both ends of the cantilever.
It will be appreciated that the innovative slide assembly can control friction by design. This is particularly useful in transportation (e.g., long-haul truck) applications. For example, by design, friction can be controlled such that it can be essentially constant regardless of weight or contents of a drawer. Another benefit of a controlled friction mechanism is preventing the inadvertent opening of a drawer in a moving truck due to inertia caused by the moving truck. Conventional roller bearing designs employ a near zero friction roller bearing design, which allows the drawer to inadvertently open due to the shifting of inertia in the drawer caused by the movement of the truck. The controlled friction of the innovation alleviates this condition.
What has been described above includes examples of the innovation. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the subject innovation, but one of ordinary skill in the art may recognize that many further combinations and permutations of the innovation are possible. Accordingly, the innovation is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Furthermore, to the extent that the term “includes” is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term “comprising” as “comprising” is interpreted when employed as a transitional word in a claim.
This application claims the benefit of U.S. Provisional Patent application Ser. No. 61/422,488 entitled “CRAWLER TRACK DRAWER SLIDE” and filed on Dec. 13, 2010.
Number | Date | Country | |
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61422488 | Dec 2010 | US |