Drawer interlink system

Information

  • Patent Grant
  • 6170927
  • Patent Number
    6,170,927
  • Date Filed
    Friday, November 20, 1998
    25 years ago
  • Date Issued
    Tuesday, January 9, 2001
    23 years ago
Abstract
A drawer interlinking system for a storage cabinet is disclosed herein. The cabinet includes a frame, a first sliding assembly, and a second sliding assembly. Each sliding assembly is movable between an extended position and a retracted position relative to the frame. The frame includes a flexible member coupled at a first end to the first sliding assembly. The line is directed by a first guide coupled to the frame in association with the first sliding assembly, a guide assembly coupled to the frame and spaced apart from the first guide, a glide assembly coupled to the frame by a tension member, and a second guide coupled to the frame in association with the second sliding assembly and spaced apart from the guide assembly. The flexible member is coupled at a second end to the second sliding assembly, so that when one sliding assembly is extended from the frame the other sliding assembly is retracted into the frame. The guide assembly can comprise a left pulley connected to a right pulley. The glide assembly may include a tension member, such as a spring. Further, the cabinet may include an instop bumper that centers and aligns the sliding assemblies when the sliding assemblies are in a retracted position.
Description




FIELD OF THE INVENTION




The present invention generally relates to storage cabinets having sliding assemblies. More specifically, the present invention relates to a mobile storage cabinet having interlinked drawers where each drawer of the cabinet is movable between an extended and a retracted position so that when a worker extends one drawer from the cabinet the other drawer is retracted into the cabinet.




BACKGROUND OF THE INVENTION




Storage cabinets for stowing and organizing contents have been known for many years. Such cabinets typically include a plurality of drawers. Contents (e.g., files, papers, office utensils) are stowed in the drawers of the cabinet for access by workers. Typically, the center of gravity of the cabinet shifts toward the front of the cabinet when a worker extends a drawer to retrieve the contents therein. The center of the gravity is further shifted toward the front of the cabinet when a second or third drawer is also extended to retrieve the contents therein. The shift in the center of gravity toward the front of the cabinet may cause the cabinet to tip forward resulting in the spillage of the stored contents, or even overturn.




Several attempts have been made to prevent cabinets from tipping forward or overturning. One attempt includes providing a heavy weight attached to the back end of a cabinet. The weight can decrease the degree to which the center of gravity of the cabinet shifts forward as a drawer is extended. However, cabinets of this type are bulky and weighty, which reduces the mobility of the cabinet and increases costs of manufacture and shipping. Another attempt to prevent cabinets from overturning includes anchoring the cabinet to a floor or wall. However, anchoring the cabinet eliminates the mobility of the cabinet.




Still another attempt to prevent cabinets from overturning includes using a cord linking the drawers of the cabinet and having only enough slack to allow one drawer to be completely extended at a given moment in time. When so linked, the cord causes one drawer to retract when another drawer is extended. However, the linking action of the drawers is not smooth or immediate because of slack in the cord, which inhibits a direct response between the extension of one drawer and the retraction of another drawer. Some cabinets include a counterbalance to reduce the slack in the cord, but the counterbalance further adds to the overall weight of the cabinet, which reduces the mobility of the cabinet.




Accordingly, it would be advantageous to provide a cabinet for stowing contents that overcomes these and other disadvantages of the related art. In particular, it would be advantageous to provide a cabinet for storing items that does not easily tip forward or overturn when a drawer is extended. Further, it would be advantageous to provide a cabinet that is not weighted so greatly that it is difficult to move. It would also be advantageous to provide a cabinet with interlinked drawers so that one drawer is retracted in direct response to the extension of another drawer.




SUMMARY OF THE INVENTION




The present invention relates to a drawer interlinking system for a storage cabinet. The cabinet includes a frame, a first sliding assembly, and a second sliding assembly. Each sliding assembly (preferably, a drawer) is selectively configured between an extended position and a retracted position relative to the frame. The system includes a flexible member having a first end coupled to the first sliding assembly. The system also includes a first guide, coupled to the frame relative to the first sliding assembly, that directs the flexible member. The system further includes a first primary guide, coupled to the frame and spaced a distance from the first guide, that directs the flexible member. The system still further includes a connecting guide, coupled to the frame by a connecting member, that directs the flexible member. In addition, the system includes a second primary guide, coupled to the frame and spaced a distance from the first guide, that directs the flexible member. Further, the system includes a second guide, coupled to the frame relative to the second sliding assembly and spaced a distance from the first and second primary guides, that directs the flexible member. The flexible member has a second end coupled to the second sliding assembly, so that when the first sliding assembly is extended from the frame the second sliding assembly is retracted into the frame.




The present invention further relates to an interlinking system for a storage cabinet. The cabinet provides a frame, a first sliding assembly, and a second sliding assembly (such as drawers), each sliding assembly being movable between an extended position and a retracted position relative to the frame to open and close the drawers, respectively. The system includes a first guide coupled to the frame relative to the first sliding assembly. The system also includes a first primary guide coupled to the frame and spaced a distance from the first guide. The system further includes a connecting guide coupled to the frame by a connecting member. The connecting member prevents slack from accumulating in the flexible member. The system still further includes a second primary guide coupled to the frame and spaced a distance from the first guide. In addition, the system includes a second guide coupled to the frame in association with the second sliding assembly and spaced a distance from the first and second primary guides. Further, the system includes a flexible member having a first end and a second end. The first end of the flexible member is coupled to the first sliding assembly, the second end of the flexible member is coupled to the second sliding assembly. The flexible member is directed by the first guide, the first primary guide, the connecting guide, the second primary guide, and the second guide. When the first sliding assembly is extended from the frame the second sliding assembly is retracted into the frame.




The present invention further relates to a method of operating an interlinking system. The interlinking system provides a storage cabinet having a frame, a first sliding assembly and a second sliding assembly. Each sliding assembly is selectively configured between an extended position, a retracted position, and a combination thereof relative to the frame. The interlinking system further provides a flexible member having a first end coupled to the first sliding assembly. The interlinking system still further provides a first guide, coupled to the frame relative to the first sliding assembly, that directs the flexible member. Also, the interlinking system provides a first primary guide, coupled to the frame and spaced a distance from the first guide, that directs the flexible member. Further, the interlinking system provides a glide, coupled to the frame by a connecting member, that directs the flexible member. The interlinking system also includes a second primary guide, coupled to the frame and spaced a distance from the first guide, that directs the flexible member. Still further, the interlinking system includes a second guide, coupled to the frame relative to the second sliding assembly and spaced a distance from the first and second primary guides, that directs the flexible member. The flexible member has a second end coupled to the second sliding assembly. The method includes extending the first sliding assembly to create tension on the flexible member. The method further includes directing the flexible member with the first guide. The method still further includes directing the flexible member with the first primary guide. In addition, the method includes directing the flexible member with the glide assembly. Further, the method includes directing the flexible member with the second primary guide. Still further, the method includes directing the flexible member with the second guide.











DESCRIPTION OF THE FIGURES





FIG. 1

is a perspective view of a drawer interlinking system according to a preferred embodiment of the present invention.





FIG. 2

is a sectional side elevation view of the drawer interlinking system of FIG.


1


.





FIGS. 3A

,


3


B, and


3


C are perspective views of the drawer interlinking system of

FIG. 1

with each drawer in a translated position.





FIG. 4

is a fragmentary cross sectional view of a guide assembly taken along line iv—iv of

FIG. 2

according to an exemplary embodiment.





FIG. 5

is a fragmentary side elevation view of a guide assembly according to an exemplary embodiment of the present invention.





FIG. 6

is a fragmentary side elevation view of a guide according to an exemplary embodiment of the present invention.





FIG. 7

is a fragmentary exploded perspective view of the line attachment assembly of the drawer interlinking system according to an exemplary embodiment of the present invention.





FIG. 8

is a perspective view of the drawer interlinking system according to an alternative embodiment of the present invention.





FIGS. 9A

,


9


B, and


9


C are perspective views of the drawer interlinking system of

FIG. 8

with two drawers in translated positions.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring to the

FIG. 1

, a drawer interlinking system


20


is shown according to a preferred embodiment of the present invention. The system may include any type of compartment, chest, or cabinet with sliding assemblies, separators, or drawers.

FIG. 1

shows the basic elements of drawer interlinking system


20


according to an exemplary embodiment of the invention. System


20


includes a chamber (shown as a cabinet


22


in

FIG. 1

) having a frame


24


, a top and a bottom sliding assembly (shown as drawers


26


and


28


in FIG.


1


), a flexible member


70


, a plurality of guides


30


, and a glide assembly


50


. Plurality of guides


30


interact with and direct flexible member


70


as drawers


26


and


28


are extended and retracted relative to frame


24


of cabinet


22


. Flexible member


70


and plurality of guides


30


coact to interlink drawers


26


and


28


. A line attachment assembly


80


secures flexible member


70


to bottom and top drawers


26


and


28


. Tension is placed on flexible member


70


to ensure that bottom drawer


26


is retracted when top drawer


28


is extended (and vice versa) relative to cabinet


22


.




In

FIG. 2

, system


20


includes cabinet


22


providing frame


24


having bottom drawer


26


and top drawer


28


(a plurality of drawers may be included) having pulls


36


. According to a particularly preferred embodiment, cabinet


22


is designed to be mobile and capable of being positioned under a work surface (e.g., table, desk, counter). Bottom drawer


26


and top drawer


28


are removable between an extended and retracted position relative to frame


24


. Drawers


26


and


28


are preferably inclined slightly toward the rear of cabinet


22


. According to a particularly preferred embodiment, drawers


26


and


28


are inclined one-half degree toward the rear of cabinet


22


. The incline of drawers


26


and


28


permits some countermeasure to the downward force applied by contents


92


(e.g., files, books, office products) of drawers


26


and


28


. Cabinet


22


further includes a weight


90


rigidly mounted to the back of cabinet


22


by a fastener shown as a screw


86


through a hole


88


. According to a particularly preferred embodiment, weight


90


is approximately twenty-seven pounds for a two-drawer, twenty-four inch high mobile cabinet. Weight


90


provides some countermeasure to the downward force applied by contents


92


of drawers


26


and


28


when in an extended position. A caster


94


is rotably mounted to the bottom of cabinet


22


. Casters


94


permit movement of cabinet


22


. Cabinet


22


further includes a lock bar


100


having a hook


102


and a lock


112


. Hooks


102


of lock bar


100


increasingly engage the sides of drawers


26


and


28


as drawers


26


or


28


are pulled with increased force when lock


112


is engaged. Drawers


26


and


28


of cabinet


22


further include an instop bumper (not shown). The instop bumper centers and aligns drawers


26


and


28


when the drawers are in a retracted position.




Flexible member


70


includes ends


72


and


74


, and tabs


76


. Tabs


76


are situated at the terminus of first and second ends


72


and


74


of flexible member


70


. Flexible member


70


can be any material (e.g., cable, string, wire) capable of interaction with and direction by plurality of guides


30


. According to a particularly preferred embodiment, flexible member


70


is “7×7” coated cable, Part No. 892800008 available from Grand Rapids Controls of Grand Rapids, Mich. Line attachment assembly


80


secures first and second ends


72


and


74


of flexible member


70


to the back of bottom and top drawers


26


and


28


, respectively (see FIG.


7


). Line attachment assembly


80


prevents flexible member


70


from exiting drawers


26


and


28


through a hole


104


. Line attachment assembly


80


includes a clip


82


. According to a particularly preferred embodiment, clip


82


is rectangular-shaped having an “L”-shaped inner channel


84


. Tabs


76


of first and second ends


72


and


74


of flexible member


70


fit through hole


104


of bottom and top drawers


26


and


28


, respectively. Inner channel


84


permits clip


82


to circumscribe flexible member


70


. The outer perimenter of clip


82


is greater than the outer perimeter of hole


104


, and the width of tab


76


is wider than the diameter of inner channel


84


of clip


82


. Accordingly, when glide assembly


50


creates tension on flexible member


70


, tab


76


presses against clip


82


, which in turn, presses against hole


104


of drawers


26


and


28


so that tab


76


is secured to the back of bottom and top drawers


26


and


28


, respectively




A bottom drawer guide


32


(such as a first guide), a top drawer guide


34


(such as a second guide), a guide assembly


40


(such as a first and second primary guide) and glide assembly


50


(such as a connecting guide) interact with and direct flexible member


70


. The portion of flexible member


70


associated with first end


72


interacts with and is directed by bottom drawer guide


32


associated with bottom drawer


26


. Bottom drawer guide


32


is mounted to frame


24


of cabinet


22


by a connecting member. According to a particularly preferred embodiment, the connector is an elongate finger


46


that extends from frame


24


of cabinet


22


, and bottom drawer guide


32


is a plastic pulley that rotates. (See

FIG. 6.

) Line attachment assembly


80


secures first end


72


of flexible member


70


to clip


82


and the back of bottom drawer


26


. The portion of flexible member


70


associated with second end


74


interacts with and is guided by top drawer guide


34


associated with top drawer


28


. Top drawer guide


34


is mounted to frame


24


of cabinet


22


by a connector (e.g., elongate finger


46


). According to a particularly preferred embodiment, top drawer guide


34


is a plastic pulley that rotates. (See

FIG. 6.

) Line attachment assembly


80


secures second end


74


of flexible member


70


to clip


82


and the back of top drawer


28


.




Guide assembly


40


further interacts with and directs flexible member


70


. (See

FIG. 5.

) Guide assembly


40


is spaced a distance from top and bottom drawer guides


32


and


34


. Guide assembly


40


includes a left and a right guide


42


and


44


. According to a particularly preferred embodiment, left and right guides


42


and


44


of guide assembly


40


are plastic pulleys that rotate, and further, left guide


42


is preferably coupled to right guide


44


(or vice versa). Guide assembly


40


is mounted to frame


24


of cabinet


22


by a connector. According to a particularly preferred embodiment, the connector is elongate finger


46


that extends from frame


24


of cabinet


22


, and left and right guides


42


and


44


are plastic pulleys that rotate. In operation, when drawers


26


and


28


are extended and retracted, left guide


42


of guide assembly


40


interacts with and directs the portion of flexible member


70


associated with second end


74


, and right guide


44


of guide assembly


40


interacts with and directs the portion of flexible member


70


associated with first end


72


.




Glide assembly


50


still further interacts with and directs flexible member


70


. (See

FIG. 4.

) Glide assembly


50


preferably includes a lead


52


, and a tension member (such as a connecting member). Glide assembly


50


serves to prevent slack from accumulating in flexible member


70


. The tension member is preferably a tensioned device (e.g., spring, elastic band, sponge). According to a particularly preferred embodiment, tension member is a spring


56


, such as a coil metal spring (e.g., Part No. 80120110 available from Wolverine Coil, Incorporated of Grand Rapids, Mich.). Spring


56


has a spring constant great enough to grab any slack in flexible member


70


necessary when drawers


26


and


28


are extended or retracted. Hooks are provided at each end of the spring


56


. A first hook


58


of spring


56


is inserted through a hole


106


of frame


24


of cabinet


22


. A second hook


60


of spring


56


is inserted through a hole


114


of lead


52


. Lead


52


is preferably rectangular shaped having a passage


54


. Passage


54


is curved (e.g., “U”-shaped) to interact with and direct flexible member


70


through lead


52


. Lead


52


functions like a pulley in relation to flexible member


70


, but does not rotate. Lead


52


is positioned in the horizontal plane so that the portions of flexible member


70


associated with first and second ends


72


and


74


do not strike one another. Contact occurs between the portions of flexible member


70


associated with first and second ends


72


and


74


if lead


52


is positioned in the vertical plane.




A stop mechanism


64


is located between lead


52


and guide assembly


40


. A fastener, such as a screw


108


, is inserted through a hole


110


to connect stop mechanism


64


to frame


24


of cabinet


22


. The tension on glide assembly


50


created by the extension of bottom or top drawers


26


and


28


causes lead


52


to move toward guide assembly


40


. Stop mechanism


64


prohibits lead


52


of glide assembly


50


from striking guide assembly


40


. Stop mechanism


64


includes a lip


66


provided between the portions of flexible member


70


associated with first and second ends


72


and


74


. Lip


66


ensures that the portions of flexible member


70


associated with first and second ends


72


and


74


do not strike one another. Spring


56


is fully extended so that lead


52


is adjacent to stop mechanism


64


when bottom drawer


28


is in the fully extended position and bottom drawer


26


is in the fully retracted position (or vice versa) (see FIGS.


3


A and


3


C), or alternatively, when both drawers


26


and


28


are in a partially extended position relative to frame


24


(see, e.g., FIG.


3


B).




Referring to

FIG. 1

, drawers


26


and


28


are in a fully retracted position. In operation, when bottom drawer


26


is subsequently extended (see, e.g.,

FIG. 3A

) the following occurs: lead


52


and spring


56


move toward stop mechanism


64


; right guide


44


of guide assembly


40


interacts with and directs the portion of flexible member


70


associated with first end


72


; but the portion of flexible member


70


associated with second end


74


, left guide


42


of guide assembly


40


, and top drawer guide


34


remain essentially motionless. Likewise, when drawers


26


and


28


are in a fully retracted position (as shown in FIG.


1


), and top drawer


28


is subsequently extended (see, e.g.,

FIG. 3C

) the following occurs: lead


52


and spring


56


move toward stop mechanism


64


; left guide


42


of guide assembly


40


interacts with and directs the portion of flexible member


70


associated with second end


74


; but the portion of flexible member


70


associated with first end


72


, right guide


44


of guide assembly


40


, and bottom drawer guide


32


remain essentially motionless.




Operation of interlinked drawers


26


and


28


of cabinet


22


between an extended and a retracted position is best shown by reference to

FIGS. 1 and 3A

through


3


C. Referring to

FIG. 1

, drawers


26


and


28


of cabinet


22


are both in a fully retracted position. Spring


56


is only slightly extended and glide assembly


50


exerts a slight tension that grabs slack in flexible member


70


.




Bottom drawer


26


must be extended (as shown in

FIG. 1

) to retrieve the contents


92


therein. The extension of bottom drawer


26


exerts a tension on first end


72


of flexible member


70


. Consequently, first end


72


of flexible member


70


exerts a tension on glide assembly


50


, which causes glide assembly


50


to move toward stop mechanism


64


. The extension of the bottom drawer


26


(when top drawer


28


is in a retracted position) does not exert a significant tension on second end


74


of flexible member


70


. When bottom drawer


26


is in a fully extended position (as in

FIG. 3A

) spring


56


is fully extended and stop mechanism


64


prevents lead


52


from moving further toward guide assembly


40


.




Referring to

FIG. 3A

, bottom drawer


26


is in a fully extended position and top drawer


28


is in a fully retracted position. Top drawer


28


must be extended to obtain contents


92


therein. As top drawer


28


is extended, the portion of flexible member


70


associated with second end


74


exerts a tension on glide assembly


50


. Stop mechanism


64


prevents glide assembly


50


from further moving toward guide assembly


40


. Spring


56


remains fully extended so glide assembly


50


neither takes nor donates a significant amount of slack to flexible member


70


. Consequently, second end


74


of flexible member


70


exerts a tension on first end


72


of flexible member


70


, flexible member


70


interacts with and is directed by passage


54


of glide assembly


40


, which causes bottom drawer


26


to partially retract relative to frame


24


(as in

FIG. 3B

, showing bottom drawer


26


in a partially retracted position and top drawer


28


in a partially extended position). Bottom drawer


26


and top drawer


28


are interlinked by flexible member


70


, plurality of guides


30


, and glide assembly


50


. Thus, the further extension of top drawer


28


causes bottom drawer


26


to be further retracted into frame


24


until top drawer


28


is in a fully extended position and bottom drawer


26


is in a fully retracted position (as shown in FIG.


3


C).




Top drawer


28


can be retracted from its fully extended position (as shown in FIG.


3


C). In so doing, spring


56


grabs the slack in flexible member


70


. Accordingly, the following occurs: spring


56


moves toward the front of cabinet


22


; lead


52


moves toward the front of cabinet


22


; the portion of flexible member


70


associated with second end


74


interacts with and is directed by left guide


42


of guide assembly


40


; but flexible member


70


associated with first end


72


, right guide


44


of guide assembly


40


, and bottom drawer guide


32


remain essentially motionless.





FIG. 8

shows a drawer interlinking system


120


according to an alternative embodiment of the present invention. System


120


includes a middle, a top and a bottom sliding assembly shown as a middle, a top and a bottom drawer


126


,


128


, and


124


, respectively. Bottom drawer


124


is not interlinked to middle and top drawers


126


and


128


. In all other respects, system


120


is essentially the same as system


22


in structure, function, and operation, and the like reference numerals identify like elements. According to a particularly preferred embodiment, the drawer that is not interlinked (i.e., bottom drawer


124


as shown in

FIG. 8

) is located between the interlinked drawers (such as middle and top drawers


126


and


128


as shown in FIG.


8


).





FIGS. 9A

,


9


B, and


9


C further detail drawer interlinking system


120


of

FIG. 8

according to a particularly preferred embodiment. Middle and top drawers


126


and


128


are interlinked such that top drawer


128


is retracted when middle drawer


126


is extended (see, e.g., FIG.


9


A). Likewise, middle door


126


is retracted when top drawer


128


is extended (see, e.g., FIG.


9


C). Bottom drawer


124


is not interlinked and may be extended or retracted regardless of the position of middle and top drawers


126


and


128


. According to an alternative embodiment, the top drawer (or multiple drawers) is not interlinked to the bottom and middle interlinked drawers in a three (or more) drawer file cabinet, and the top and middle drawers are smaller in size than the bottom drawer.




Although only a few exemplary embodiments of the present invention have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible in the exemplary embodiments (such as variations in sizes, structures, shapes, weights and proportions of the various elements, values of parameters, mounting arrangements, use of materials, number of drawers, or placement of drawers) without materially departing from the novel teachings and advantages of the invention. Accordingly, all such modifications are intended to be included within the scope of the invention as defined in the appended claims. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the preferred embodiments without departing from the spirit of the invention as expressed in the appended claims.



Claims
  • 1. An interlinking system for a storage cabinet having a frame, a first compartment assembly and a second compartment assembly, each compartment assembly being movable between an extended position and a retracted position relative to the frame, the interlinking system comprising:a first guide coupled to the frame relative to the first compartment assembly; a first primary guide coupled to the frame and spaced a distance from the first guide for directing a flexible link; a connecting guide coupled to the frame by a connecting member for directing the flexible link; a second primary guide coupled to the frame and spaced a distance from the first guide for directing the flexible link; a second guide coupled to the frame in association with the second compartment assembly and spaced a distance from the first primary guide and the second primary guide for directing the flexible link; and wherein the connecting guide is positioned between a first end of the flexible link and a second end of the flexible link, wherein the first end is fixed to the first compartment assembly and the second end is fixed to the second compartment assembly, and wherein the flexible link is guided by the first guide, the first primary guide, the connecting guide, the second primary guide, and the second guide, respectively along a length of the flexible link; whereby the first compartment assembly is retracted into the frame when the second compartment assembly is extended from the frame.
  • 2. The interlinking system of claim 1 wherein the flexible link is a cable.
  • 3. The interlinking system of claim 1 wherein the first guide is a first pulley, the second guide is a second pulley, and the connecting guide is a pulley.
  • 4. The interlinking system of claim 1 wherein the connecting member includes a spring.
  • 5. The interlinking system of claim 1 wherein the first end of the flexible link is coupled to a back portion of the first compartment assembly and the second end of the flexible link is coupled to a back portion of the second compartment assembly.
  • 6. A method of operating an interlinking system providing a storage cabinet having a frame, a first compartment assembly and a second compartment assembly, each compartment assembly selectively configured for selective movement between an extended position and a retracted position relative to the frame, a flexible link having a first end fixed to the first compartment assembly, a first guide coupled to the frame relative to the first compartment assembly, a first primary guide coupled to the frame and spaced a distance from the first guide, a glide coupled to the frame by a connecting member, a second primary guide coupled to the frame and spaced a distance from the first guide, a second guide coupled to the frame relative to the second compartment assembly and spaced a distance from the first and second primary guides, the flexible link having a second end fixed to the second compartment assembly, comprising:extending the first compartment assembly thereby providing a tension on the flexible link and thereby moving the glide, wherein the system responds by: directing the flexible link with the first guide, the first primary guide, the glide, the second primary guide, and the second guide, respectively along a length of the flexible link; and exerting a tension on the first end of the flexible link and the second end of the flexible link to reduce slack in the flexible link,; wherein the first compartment assembly is retracted into the frame when the second compartment assembly extended from the frame.
  • 7. The method of claim 6 further comprising extending the second compartment assembly so that the first compartment assembly is retracted into the frame.
  • 8. The method of claim 7 wherein extending the second compartment assembly thereby provides a tension on the flexible link.
  • 9. The method of claim 7 wherein extending the first compartment assembly thereby provides tension on the flexible link.
  • 10. An interlinking system for a storage cabinet having a frame, a first compartment assembly and a second compartment assembly, each compartment assembly selectively configured for selective movement between an extended position and a retracted position relative to the frame, comprising:a flexible link having a first end fixed to the first compartment assembly and a second end fixed to the second compartment assembly; a first guide coupled to the frame relative to the first compartment assembly adapted for directing the flexible link; a first primary guide coupled to the frame and spaced a distance from the first guide adapted for directing the flexible link; a connecting guide coupled to the frame between the first end of the flexible link and the second end of the flexible link by a connecting member adapted for directing the flexible link; a second primary guide coupled to the frame and spaced a distance from the first guide adapted for directing the flexible link; a second guide coupled to the frame relative to the second compartment assembly and spaced a distance from the first primary guide and the second primary guide adapted for directing the flexible link; and wherein the flexible link is guided by the first guide, the first primary guide, the connecting guide, the second primary guide, and the second guide, respectively along a length of the flexible link so that the first compartment assembly is retracted into the frame when the second compartment assembly is extended from the frame.
  • 11. The interlinking system of claim 10 wherein the compartment assembly is a drawer adapted for sliding movement relative to the frame.
  • 12. The interlinking system of claim 10 wherein the connecting guide comprises a lead having a channel.
  • 13. The interlinking system of claim 10 wherein the compartment assembly is a sliding drawer.
  • 14. The interlinking system of claim 10 further comprising a stop mechanism for separating the first end and the second end of the flexible link.
  • 15. The interlinking system of claim 10 wherein the connecting guide is adapted to exert a substantially equal tension on the first end of the flexible link and the second end of the flexible link.
  • 16. The interlinking system of claim 10 wherein the flexible link includes a continuous cable.
  • 17. The interlinking system of claim 10 wherein the connecting guide includes a passage for guiding the flexible link.
  • 18. The interlinking system of claim 10 wherein the first primary guide is coupled to the second primary guide.
  • 19. The interlinking system of claim 11 wherein the first guide and the second primary guide comprise a primary pulley.
  • 20. The interlinking system of claim 12 wherein the first guide is a first pulley, the second guide is a second pulley, and the connecting guide is a third pulley.
  • 21. The interlinking system of claim 13 wherein the connecting member includes a spring.
  • 22. The interlinking system of claim 14 wherein the first end of the flexible link is coupled to a back portion of the first compartment assembly and the second end of the flexible link is coupled to a back portion of the second compartment assembly.
  • 23. The interlinking system of claim 10 wherein the connecting guide is attached to a spring.
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Foreign Referenced Citations (3)
Number Date Country
1257561 Dec 1971 GB
2079834 Jan 1982 GB
8902692 May 1991 NL