US20020140331A1 - Retaining structure for a track device - Google Patents
Retaining structure for a track device Download PDFInfo
- Publication number
- US20020140331A1 US20020140331A1 US09/818,682 US81868201A US2002140331A1 US 20020140331 A1 US20020140331 A1 US 20020140331A1 US 81868201 A US81868201 A US 81868201A US 2002140331 A1 US2002140331 A1 US 2002140331A1
- Authority
- US
- United States
- Prior art keywords
- track
- retaining block
- resilient legs
- main body
- stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/49—Sliding drawers; Slides or guides therefor with double extensible guides or parts
- A47B88/493—Sliding drawers; Slides or guides therefor with double extensible guides or parts with rollers, ball bearings, wheels, or the like
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2210/00—General construction of drawers, guides and guide devices
- A47B2210/0002—Guide construction for drawers
- A47B2210/0029—Guide bearing means
- A47B2210/0032—Balls
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2210/00—General construction of drawers, guides and guide devices
- A47B2210/0002—Guide construction for drawers
- A47B2210/0051—Guide position
- A47B2210/0059—Guide located at the side of the drawer
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2210/00—General construction of drawers, guides and guide devices
- A47B2210/0002—Guide construction for drawers
- A47B2210/0064—Guide sequencing or synchronisation
- A47B2210/007—Three slide synchronisation
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2210/00—General construction of drawers, guides and guide devices
- A47B2210/0002—Guide construction for drawers
- A47B2210/0064—Guide sequencing or synchronisation
- A47B2210/0081—Telescopic drawer rails with stop blocks, e.g. synchronization buffers
Definitions
- the present invention relates to a retaining structure for a track device with at least two tracks such that the tracks move in sequence when they are pushed inward or pulled outward.
- FIG. 11 of the drawings illustrates a so-called “three-part”conventional track device for a drawer.
- the track device includes an outer track 91 , a middle track 92 , and an inner track 93 .
- a plurality of rolling balls 94 are mounted between the middle track 92 and the inner track 93 to allow easy sliding movement of the inner track 93 in the middle track 92 .
- the inner track 93 has a claw 95 with a resilient leg 96 and the middle track 92 has a stop 97 .
- the resilient leg 96 can be pressed to allow a protrusion 951 of the claw 95 to move across a stop piece 971 of the stop 97 , thereby allowing assembly or detachment between the inner track 93 and the middle track 92 .
- the protrusion 951 of the claw 95 is engaged with the stop piece 971 of the stop 97 when the inner track 93 is pulled outward, thereby preventing disengagement of the inner track 93 from the middle track 92 .
- two inner tracks 93 are respectively mounted to two opposite lateral walls of the drawer and two outer tracks 91 are respectively mounted to two inner lateral walls of a furniture piece (such as a desk) that receives the drawer. It was, however, found that sometimes the tracks 92 or 93 cannot move synchronously while pushing the drawer inward. Movement of the drawer is thus unbalanced and not smooth, and sometimes even stuck.
- the third track is allowed to slide relative to the second track.
- the third track is firstly retracted inward relative to the second track.
- the second track is allowed to retract into the first track.
- a track device comprises a first track, a second track slidably received in the first track, and a third track slidably received in the second track.
- the first track includes a retaining block having an upper side and an underside side.
- Each of the upper side and the underside side of the retaining block has a first end having an inclined surface tapering toward a longitudinal axis of the retaining block.
- Each of the upper side and the underside side of the retaining block further has a second end with an engaging portion.
- the second track is slidably received in the first track and has a clamping member mounted thereto.
- the clamping member includes a main body with two opposite sides and two resilient legs each having an intermediate portion connected to an associated side of the main body.
- Each resilient leg further includes a first end extending beyond the main body and a second end extending beyond the main body. A distance between the first ends of the resilient legs is smaller than that between the second ends of the resilient legs. The first ends of the resilient legs are releasably engaged with the retaining block and releasably retained on the engaging portions of the retaining block.
- FIG. 1 is an exploded perspective view of a track device in accordance with the present invention.
- FIG. 2 is a partial exploded perspective view of a first track and a second track of the track device in accordance with the present invention.
- FIG. 3 is a side elevational view of the track device in accordance with the present invention in a collapsed state.
- FIG. 4 is a sectional view taken along line 4 - 4 in FIG. 3.
- FIG. 5 is a view similar to FIG. 3, wherein the inner track is pulled outward.
- FIG. 6 is a sectional view taken along line 6 - 6 in FIG. 5.
- FIG. 7 is a view similar to FIG. 5, wherein the track device is in its fully extended state.
- FIG. 8 is a sectional view taken along line 8 - 8 in FIG. 7.
- FIG. 9 is a sectional view taken along line 9 - 9 in FIG. 8.
- FIG. 10 a is a perspective view of a first embodiment of an engaging member in accordance with the present invention.
- FIG. 10 b is a perspective view of a second embodiment of the engaging member in accordance with the present invention.
- FIG. 10 c is a perspective view of a third embodiment of the engaging member in accordance with the present invention.
- FIG. 11 is an exploded perspective view of a conventional track device for a drawer.
- a three-part track device in accordance with the present invention generally includes a first track 1 , a second track 2 , and a third track 3 .
- the first track 1 includes holes 11 so as to be fixed to an inner lateral wall of a furniture piece (not shown).
- the first track 1 includes an upper longitudinal lip 12 and a lower longitudinal lip 12 for guiding sliding movement of the second track 2 in the first track 1 .
- Slide-aiding members 13 are provided between the first track 1 and the second track 2 .
- a stop 14 is formed on an end of the first track 1 and a stop 21 is formed on an end of the second track 2 to prevent disengagement of the second track 2 from the first track 1 after the second track 2 is mounted into the first track 1 .
- a stop 15 is mounted to the other end of the first track 1 for preventing disengagement of the second track 2 via the other end of the first track 1 .
- the first track 1 further includes a guide block 16 for providing stable movement of the second track 2 .
- the second track 2 is mounted into the first track 1 and slidable between the upper lip 12 and the lower lip 12 of the first track 1 .
- the second track 2 includes an upper longitudinal lip 22 and a lower longitudinal lip 22 for guiding sliding movement of the third track 3 in the second track 2 .
- a slide-aiding member 23 is provided between the second track 2 and the third track 3 .
- the slide-aiding member 23 includes two lateral extensions (not labeled) respectively facing the upper and lower longitudinal lips 22 and having a plurality of balls 24 to provide the best sliding contact between the second track 2 and the third track 3 .
- the stop 24 on the second track 2 prevents disengagement of the second track 2 from the first track 1 .
- a stop 25 with a stop piece 251 is provided on the other end of the second track 2 for engaging with a protrusion 312 of a claw 31 on the third track 3 , thereby preventing disengagement of the third track 3 from the second track 2 .
- the third track 3 is mounted in the second track 2 and slidably guided between the upper and lower longitudinal lips 22 of the second track 2 .
- the third track 3 includes holes (not labeled) so as to be nailed to an outer lateral wall (not shown) of a drawer (not shown) that is received in the furniture piece.
- the claw 31 of the third track 3 includes a resilient leg 311 .
- the resilient leg 311 can be pressed to allow the protrusion 312 of the claw 31 to move across the stop piece 251 of the stop 25 , thereby allowing assembly or detachment between the third track 3 and the second track 2 .
- the protrusion 312 of the claw 31 is engaged with the stop piece 251 of the stop 25 when the third track 3 is pulled outward, thereby preventing disengagement of the third track 3 from the second track 2 .
- the present invention is characterized in that the first track 1 includes a retaining block 17 and the second track 2 includes a clamping member 26 .
- the retaining block 17 is fixed to the first track 1 at an appropriate place and is formed to have a structure shown in either one of FIGS. 10 a through 10 c. More specifically, as illustrated in FIGS. 10 a , 10 b , and 10 c, the retaining block 17 includes an upper side and an underside each having a first end with an inclined surface 171 tapering toward a longitudinal axis of the retaining block 17 , a second end with a recessed engaging portion 173 , and an intermediate portion 172 between the first end and the second end.
- the retaining block 17 has a maximum width defined between the intermediate portions 172 of the upper side and underside thereof.
- the clamping member 26 is fixed to an end of the second track 2 that is away from the retaining block 17 of the first track 1 when the track device is in its fully collapsed state, as shown in FIG. 3.
- the clamping member 26 includes a main body (not labeled) and two resilient legs 27 respectively provided on upper and lower sides of the main body.
- Each resilient leg 27 includes a first end 271 , an intermediate portion connected with the main body, and a second end 272 .
- First ends 271 and second ends 272 of the resilient legs 27 extend beyond the main body.
- a distance “S” between the first ends 271 of the resilient legs 27 is smaller than a distance “L” between the second ends 272 of the resilient legs 27 .
- the first ends 271 of the resilient legs 27 can be engaged with the recessed engaging portions 173 of the retaining block 17 , thereby providing a retaining function.
- the second ends 272 of the resilient legs 27 can press against upper and lower inner wall surfaces of the third track 3 , respectively, thereby providing a frictional force between the second track 2 and the third track 3 such that the third track 3 and the second track 2 move together.
- the three-part track device in accordance with the present invention is in its fully collapsed state in which the retaining block 17 and the clamping member 26 are far away from each other.
- the resilient legs 27 of the clamping member 26 retain its original shapes with the second ends 272 of the resilient legs 27 pressing against upper and lower inner wall surfaces of the third track 3 , respectively.
- the drawer Since the first ends 271 of the resilient legs 27 are engaged with the recessed engaging portions 173 of the retaining block 17 when the track device is in its fully extended state, the drawer will not be moved inward if it is unintentionally impinged.
- the engaging force between the first ends 271 of the resilient legs 27 and the recessed engaging portions 173 of the retaining block 17 is greater than the frictional force provided by the second ends 272 of the resilient leg 27 to the third track 3 .
- the third track 3 will firstly be retracted into the second track 2 until the retracting force from the second track 2 overcomes the engaging force between the first ends 271 of the resilient legs 27 and the recessed engaging portions 173 of the retaining block 17 .
- the first ends 271 of the resilient legs 27 move across the intermediate portions 172 and the inclined surfaces 171 , thereby allowing the second track 2 to slide relative to the first track 1 while the second ends 272 of the resilient legs 27 pressing against upper and lower inner wall surfaces of the third track 3 , respectively.
- two track devices in accordance with the present inventions are mounted to two opposite lateral walls of a drawer and two inner lateral walls of a furniture piece that receives the drawer.
- the first ends 271 of resilient legs 27 retain the track device in place when the track device is unintentionally impinged, thereby preventing undesired inward movement of the drawer.
- the sliding movements of the track device are more smooth without the risk of sticking of the drawer, as the track devices on both sides of the drawer operate synchronously.
- the retaining structure in accordance with the present invention can be applied to a two-part track device using only two tracks.
Landscapes
- Drawers Of Furniture (AREA)
Abstract
A track device comprises a first track, a second track slidably received in the first track, and a third track slidably received in the second track. The first track includes a retaining block having an upper side and an underside side. Each of the upper side and the underside side of the retaining block has a first end having an inclined surface tapering toward a longitudinal axis of the retaining block. Each of the upper side and the underside side of the retaining block further has a second end with an engaging portion. The second track is slidably received in the first track and has a clamping member mounted thereto. The clamping member includes a main body with two opposite sides and two resilient legs each having an intermediate portion connected to an associated side of the main body. Each resilient leg further includes a first end extending beyond the main body and a second end extending beyond the main body. A distance between the first ends of the resilient legs is smaller than that between the second ends of the resilient legs. The first ends of the resilient legs are releasably engaged with the retaining block and releasably retained on the engaging portions of the retaining block.
Description
- 1. Field of the Invention
- The present invention relates to a retaining structure for a track device with at least two tracks such that the tracks move in sequence when they are pushed inward or pulled outward.
- 2. Description of the Related Art
- FIG. 11 of the drawings illustrates a so-called “three-part”conventional track device for a drawer. The track device includes an
outer track 91, amiddle track 92, and aninner track 93. A plurality of rolling balls 94 are mounted between themiddle track 92 and theinner track 93 to allow easy sliding movement of theinner track 93 in themiddle track 92. In order to allow easy assembly, theinner track 93 has aclaw 95 with aresilient leg 96 and themiddle track 92 has astop 97. Theresilient leg 96 can be pressed to allow a protrusion 951 of theclaw 95 to move across a stop piece 971 of thestop 97, thereby allowing assembly or detachment between theinner track 93 and themiddle track 92. After theinner track 93 has been engaged in themiddle track 92, the protrusion 951 of theclaw 95 is engaged with the stop piece 971 of thestop 97 when theinner track 93 is pulled outward, thereby preventing disengagement of theinner track 93 from themiddle track 92. - For a drawer, two
inner tracks 93 are respectively mounted to two opposite lateral walls of the drawer and twoouter tracks 91 are respectively mounted to two inner lateral walls of a furniture piece (such as a desk) that receives the drawer. It was, however, found that sometimes thetracks - It is the primary object of the present invention to provide a retaining structure for a track device, wherein the retaining structure retains the track device in place when the track device is unintentionally impinged, thereby preventing undesired inward movement of the track device.
- It is another object of the present invention to provide a retaining structure for a three-part track device, wherein the second track firstly slides outward relative to the first track when the track device is extended from its fully collapsed state. When the second track reaches a predetermined position, the third track is allowed to slide relative to the second track. When collapsing the track device from its fully extended state, the third track is firstly retracted inward relative to the second track. When the third track reaches a predetermined position, the second track is allowed to retract into the first track.
- In accordance with a preferred embodiment of the invention, a track device comprises a first track, a second track slidably received in the first track, and a third track slidably received in the second track. The first track includes a retaining block having an upper side and an underside side. Each of the upper side and the underside side of the retaining block has a first end having an inclined surface tapering toward a longitudinal axis of the retaining block. Each of the upper side and the underside side of the retaining block further has a second end with an engaging portion. The second track is slidably received in the first track and has a clamping member mounted thereto. The clamping member includes a main body with two opposite sides and two resilient legs each having an intermediate portion connected to an associated side of the main body. Each resilient leg further includes a first end extending beyond the main body and a second end extending beyond the main body. A distance between the first ends of the resilient legs is smaller than that between the second ends of the resilient legs. The first ends of the resilient legs are releasably engaged with the retaining block and releasably retained on the engaging portions of the retaining block.
- Other objects, specific advantages, and novel features of the invention will become more apparent from the following detailed description and preferable embodiments when taken in conjunction with the accompanying drawings.
- FIG. 1 is an exploded perspective view of a track device in accordance with the present invention.
- FIG. 2 is a partial exploded perspective view of a first track and a second track of the track device in accordance with the present invention.
- FIG. 3 is a side elevational view of the track device in accordance with the present invention in a collapsed state.
- FIG. 4 is a sectional view taken along line4-4 in FIG. 3.
- FIG. 5 is a view similar to FIG. 3, wherein the inner track is pulled outward.
- FIG. 6 is a sectional view taken along line6-6 in FIG. 5.
- FIG. 7 is a view similar to FIG. 5, wherein the track device is in its fully extended state.
- FIG. 8 is a sectional view taken along line8-8 in FIG. 7.
- FIG. 9 is a sectional view taken along line9-9 in FIG. 8.
- FIG. 10a is a perspective view of a first embodiment of an engaging member in accordance with the present invention.
- FIG. 10b is a perspective view of a second embodiment of the engaging member in accordance with the present invention.
- FIG. 10c is a perspective view of a third embodiment of the engaging member in accordance with the present invention.
- FIG. 11 is an exploded perspective view of a conventional track device for a drawer.
- Preferred embodiments in accordance with the present invention will now be described with reference to the accompanying drawings.
- Referring to FIG. 1, a three-part track device in accordance with the present invention generally includes a
first track 1, asecond track 2, and athird track 3. Thefirst track 1 includesholes 11 so as to be fixed to an inner lateral wall of a furniture piece (not shown). Thefirst track 1 includes an upperlongitudinal lip 12 and a lowerlongitudinal lip 12 for guiding sliding movement of thesecond track 2 in thefirst track 1. Slide-aidingmembers 13 are provided between thefirst track 1 and thesecond track 2. Astop 14 is formed on an end of thefirst track 1 and astop 21 is formed on an end of thesecond track 2 to prevent disengagement of thesecond track 2 from thefirst track 1 after thesecond track 2 is mounted into thefirst track 1. Astop 15 is mounted to the other end of thefirst track 1 for preventing disengagement of thesecond track 2 via the other end of thefirst track 1. Thefirst track 1 further includes aguide block 16 for providing stable movement of thesecond track 2. - The
second track 2 is mounted into thefirst track 1 and slidable between theupper lip 12 and thelower lip 12 of thefirst track 1. Thesecond track 2 includes an upperlongitudinal lip 22 and a lowerlongitudinal lip 22 for guiding sliding movement of thethird track 3 in thesecond track 2. A slide-aidingmember 23 is provided between thesecond track 2 and thethird track 3. In a preferred embodiment of the invention, the slide-aidingmember 23 includes two lateral extensions (not labeled) respectively facing the upper and lowerlongitudinal lips 22 and having a plurality ofballs 24 to provide the best sliding contact between thesecond track 2 and thethird track 3. As mentioned above, thestop 24 on thesecond track 2 prevents disengagement of thesecond track 2 from thefirst track 1. In addition, astop 25 with astop piece 251 is provided on the other end of thesecond track 2 for engaging with aprotrusion 312 of aclaw 31 on thethird track 3, thereby preventing disengagement of thethird track 3 from thesecond track 2. - The
third track 3 is mounted in thesecond track 2 and slidably guided between the upper and lowerlongitudinal lips 22 of thesecond track 2. Thethird track 3 includes holes (not labeled) so as to be nailed to an outer lateral wall (not shown) of a drawer (not shown) that is received in the furniture piece. Theclaw 31 of thethird track 3 includes aresilient leg 311. Theresilient leg 311 can be pressed to allow theprotrusion 312 of theclaw 31 to move across thestop piece 251 of thestop 25, thereby allowing assembly or detachment between thethird track 3 and thesecond track 2. After thethird track 3 has been engaged in thesecond track 2, theprotrusion 312 of theclaw 31 is engaged with thestop piece 251 of thestop 25 when thethird track 3 is pulled outward, thereby preventing disengagement of thethird track 3 from thesecond track 2. - Referring to FIGS. 1 and 2, the present invention is characterized in that the
first track 1 includes a retainingblock 17 and thesecond track 2 includes a clampingmember 26. The retainingblock 17 is fixed to thefirst track 1 at an appropriate place and is formed to have a structure shown in either one of FIGS. 10a through 10 c. More specifically, as illustrated in FIGS. 10a, 10 b, and 10 c, the retainingblock 17 includes an upper side and an underside each having a first end with aninclined surface 171 tapering toward a longitudinal axis of the retainingblock 17, a second end with a recessedengaging portion 173, and anintermediate portion 172 between the first end and the second end. The retainingblock 17 has a maximum width defined between theintermediate portions 172 of the upper side and underside thereof. - As illustrated in FIG. 2, the clamping
member 26 is fixed to an end of thesecond track 2 that is away from the retainingblock 17 of thefirst track 1 when the track device is in its fully collapsed state, as shown in FIG. 3. The clampingmember 26 includes a main body (not labeled) and tworesilient legs 27 respectively provided on upper and lower sides of the main body. Eachresilient leg 27 includes afirst end 271, an intermediate portion connected with the main body, and asecond end 272. First ends 271 and second ends 272 of theresilient legs 27 extend beyond the main body. A distance “S” between the first ends 271 of theresilient legs 27 is smaller than a distance “L” between the second ends 272 of theresilient legs 27. The first ends 271 of theresilient legs 27 can be engaged with the recessedengaging portions 173 of the retainingblock 17, thereby providing a retaining function. In addition, the second ends 272 of theresilient legs 27 can press against upper and lower inner wall surfaces of thethird track 3, respectively, thereby providing a frictional force between thesecond track 2 and thethird track 3 such that thethird track 3 and thesecond track 2 move together. - Referring to FIGS. 3 and 4, the three-part track device in accordance with the present invention is in its fully collapsed state in which the retaining
block 17 and the clampingmember 26 are far away from each other. Thus, theresilient legs 27 of the clampingmember 26 retain its original shapes with the second ends 272 of theresilient legs 27 pressing against upper and lower inner wall surfaces of thethird track 3, respectively. - Referring to FIGS. 5 and 6, when the track device is pulled outward, since the second ends272 of the
resilient legs 27 are frictionally engaged with upper and lower inner wall surfaces of thethird track 3, respectively, thesecond track 2 and thethird track 3 move together relative to thefirst track 1 until the first ends 271 of theresilient legs 27 engage with theinclined portions 171 of the retainingblock 17. The first ends 271 of theresilient legs 27 then move to theintermediate portions 172. The second ends 272 of theresilient legs 27 are moved toward each other and thus disengaged from upper and lower inner wall surfaces of thethird track 3. As a result, thesecond track 2 separates from thethird track 3 to allow sliding movement of the latter relative to the former. - Referring to FIGS. 7 and 8, when the
third track 3 moves to an outermost position relative to thesecond track 2, the first ends 271 of theresilient legs 27 are engaged with the recessedengaging portions 173 of the retainingblock 17, as illustrated in FIG. 9. The track device is in its fully extended state. - Since the first ends271 of the
resilient legs 27 are engaged with the recessedengaging portions 173 of the retainingblock 17 when the track device is in its fully extended state, the drawer will not be moved inward if it is unintentionally impinged. In addition, the engaging force between the first ends 271 of theresilient legs 27 and the recessedengaging portions 173 of the retainingblock 17 is greater than the frictional force provided by the second ends 272 of theresilient leg 27 to thethird track 3. Thus, when the track device is to be retracted from its fully extended state, thethird track 3 will firstly be retracted into thesecond track 2 until the retracting force from thesecond track 2 overcomes the engaging force between the first ends 271 of theresilient legs 27 and the recessedengaging portions 173 of the retainingblock 17. At this time, the first ends 271 of theresilient legs 27 move across theintermediate portions 172 and theinclined surfaces 171, thereby allowing thesecond track 2 to slide relative to thefirst track 1 while the second ends 272 of theresilient legs 27 pressing against upper and lower inner wall surfaces of thethird track 3, respectively. - In use, two track devices in accordance with the present inventions are mounted to two opposite lateral walls of a drawer and two inner lateral walls of a furniture piece that receives the drawer. By means of provision of the retaining structure in accordance with the present invention, the first ends271 of
resilient legs 27 retain the track device in place when the track device is unintentionally impinged, thereby preventing undesired inward movement of the drawer. In addition, the sliding movements of the track device are more smooth without the risk of sticking of the drawer, as the track devices on both sides of the drawer operate synchronously. The retaining structure in accordance with the present invention can be applied to a two-part track device using only two tracks. - Although the invention has been explained in relation to its preferred embodiment as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the invention. It is, therefore, contemplated that the appended claims will cover such modifications and variations that fall within the true scope of the invention.
Claims (13)
1. A track device comprising:
a first track including an upper longitudinal lip and a lower longitudinal lip, the first track further including a retaining block having an upper side and an underside side, each of the upper side and the underside side of the retaining block having a first end having an inclined surface tapering toward a longitudinal axis of the retaining block, each of the upper side and the underside side of the retaining block further having a second end with an engaging portion; and
a second track slidably received in the first track and guided between the upper longitudinal lip and the lower longitudinal lip of the first track, the second track including an upper longitudinal lip and a lower longitudinal lip, the second track further including a clamping member mounted thereto, the clamping member including a main body with two opposite sides and two resilient legs each having an intermediate portion connected to an associated said side of the main body, each said resilient leg further including a first end extending beyond the main body and a second end extending beyond the main body, a distance between the first ends of the resilient legs being smaller than that between the second ends of the resilient legs, the first ends of the resilient legs being releasably engaged with the engaging block and releasably retained on the engaging portions of the retaining block.
2. The track device as claimed in claim 1 , wherein each of the upper side and the underside side of the retaining block further has an intermediate portion between the engaging portion and the inclined portion, the retaining block having a maximum width defined between the intermediate portions of the upper side and the underside thereof.
3. The track device as claimed in claim 1 , wherein the first track includes a first stop provided on an end thereof, the second track including a second stop for cooperating with the first stop of the first track for preventing disengagement of the second track from the first track.
4. A track device comprising:
a first track including an upper longitudinal lip and a lower longitudinal lip, the first track further including a retaining block having an upper side and an underside side, each of the upper side and the underside side of the retaining block having a first end having an inclined surface tapering toward a longitudinal axis of the retaining block, each of the upper side and the underside side of the retaining block further having a second end with an engaging portion;
a second track slidably received in the first track and guided between the upper longitudinal lip and the lower longitudinal lip of the first track, the second track including an upper longitudinal lip and a lower longitudinal lip, the second track further including a clamping member mounted thereto, the clamping member including a main body with two opposite sides and two resilient legs each having an intermediate portion connected to an associated said side of the main body, each said resilient leg further including a first end extending beyond the main body and a second end extending beyond the main body, a distance between the first ends of the resilient legs being smaller than that between the second ends of the resilient legs, the first ends of the resilient legs being releasably engaged with the retaining block and releasably retained on the engaging portions of the retaining block; and
a third track slidably received in the second track and guided between the upper longitudinal lip and the lower longitudinal lip of the second track.
5. The track device as claimed in claim 4 , wherein each of the upper side and the underside side of the retaining block further has an intermediate portion between the engaging portion and the inclined portion, the retaining block having a maximum width defined between the intermediate portions of the upper side and the underside thereof.
6. The track device as claimed in claim 4 , wherein the first track includes a first stop provided on an end thereof, the second track further including a second stop and a third stop, the second stop cooperating with the first stop of the first track for preventing disengagement of the second track from the first track, the third track including a fourth stop cooperating with the third stop of the second track for preventing disengagement of the third track from the second track.
7. The track device as claimed in claim 4 . wherein the second ends of the resilient legs press against an upper inner wall surface of the third track and a lower inner wall surface of the third track, respectively and the first ends of the resilient legs are disengaged from the retaining block when the track device is in a fully collapsed state.
8. The track device as claimed in claim 7 , wherein the second track and the third track move together relative to the first truck when the track device is extended from the fully collapsed state.
9. The track device as claimed in claim 8 , wherein the first ends of the resilient legs are engaged with the engaging portions of the retaining block and the second ends of the resilient legs are disengaged from the upper inner wall surface and the lower inner wall surface of the third track when the second track reaches its outermost position relative to the first track.
10. The track device as claimed in claim 9 , wherein the first ends of the resilient legs of the clamping member are respectively engaged with the engaging portions of the retaining block when the track device is in a fully extended state.
11. The track device as claimed in claim 10 , wherein an engaging force between the first ends of the resilient legs and the engaging portions of the retaining block is greater than a frictional force between the second ends of the resilient legs and the third track.
12. The track device as claimed in claim 11 . wherein the third track is firstly retracted inward relative to the second track when the track device is collapsed from its fully extended state.
13. The track device as claimed in claim 12 . wherein the second track is allowed to retract into the first track when the third track reaches a predetermined position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/818,682 US20020140331A1 (en) | 2001-03-28 | 2001-03-28 | Retaining structure for a track device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US09/818,682 US20020140331A1 (en) | 2001-03-28 | 2001-03-28 | Retaining structure for a track device |
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US20020140331A1 true US20020140331A1 (en) | 2002-10-03 |
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ID=25226151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/818,682 Abandoned US20020140331A1 (en) | 2001-03-28 | 2001-03-28 | Retaining structure for a track device |
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US (1) | US20020140331A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030178922A1 (en) * | 2002-03-22 | 2003-09-25 | King Slide Works Co., Ltd. | Track device allowing sequential inward movement |
US20040174102A1 (en) * | 2003-03-06 | 2004-09-09 | King Slide Works Co., Ltd. | Track device for drawers |
FR2874066A1 (en) * | 2004-08-04 | 2006-02-10 | Andre Large | VIBRATION FILTRATION GUIDANCE |
GB2417190A (en) * | 2004-08-18 | 2006-02-22 | King Slide Works Co Ltd | A locating device for a slide structure |
US20070132347A1 (en) * | 2005-12-09 | 2007-06-14 | Jianhong Wang | Anti-torque load captive bearings |
US20110241510A1 (en) * | 2010-04-06 | 2011-10-06 | Shih-Ming Lin | Easy No Tool Assembly Cabinet |
US20130334766A1 (en) * | 2012-06-13 | 2013-12-19 | Ricoh Company, Ltd. | Slide rail, sheet feed device, and image forming apparatus |
US8733864B2 (en) * | 2012-08-08 | 2014-05-27 | E-Make Co., Ltd. | Two way drawer slide |
CN104042046A (en) * | 2013-03-15 | 2014-09-17 | 川湖科技股份有限公司 | Deceleration structure for stretching and positioning sliding rail |
US8919897B2 (en) * | 2013-05-03 | 2014-12-30 | King Slide Works Co., Ltd. | Slide assembly with deceleration device |
US20160319582A1 (en) * | 2013-12-23 | 2016-11-03 | Grass Gmbh | Damping Device |
CN107427125A (en) * | 2014-12-10 | 2017-12-01 | S·迈尔斯 | The component of drawer and drawer |
CN112617483A (en) * | 2019-10-09 | 2021-04-09 | 川湖科技股份有限公司 | Slide rail assembly and slide rail external member thereof |
-
2001
- 2001-03-28 US US09/818,682 patent/US20020140331A1/en not_active Abandoned
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030178922A1 (en) * | 2002-03-22 | 2003-09-25 | King Slide Works Co., Ltd. | Track device allowing sequential inward movement |
US6705689B2 (en) * | 2002-03-22 | 2004-03-16 | King Slide Works Co., Ltd. | Track device allowing sequential inward movement |
US20040174102A1 (en) * | 2003-03-06 | 2004-09-09 | King Slide Works Co., Ltd. | Track device for drawers |
US6824233B2 (en) * | 2003-03-06 | 2004-11-30 | King Slide Works Co., Ltd. | Track device for drawers |
FR2874066A1 (en) * | 2004-08-04 | 2006-02-10 | Andre Large | VIBRATION FILTRATION GUIDANCE |
GB2417190A (en) * | 2004-08-18 | 2006-02-22 | King Slide Works Co Ltd | A locating device for a slide structure |
GB2417190B (en) * | 2004-08-18 | 2006-08-09 | King Slide Works Co Ltd | Locating device within a slide structure |
US7370920B2 (en) * | 2005-12-09 | 2008-05-13 | Central Industrial Supply Company | Anti-torque load captive bearings |
US20070132347A1 (en) * | 2005-12-09 | 2007-06-14 | Jianhong Wang | Anti-torque load captive bearings |
US20110241510A1 (en) * | 2010-04-06 | 2011-10-06 | Shih-Ming Lin | Easy No Tool Assembly Cabinet |
US20130334766A1 (en) * | 2012-06-13 | 2013-12-19 | Ricoh Company, Ltd. | Slide rail, sheet feed device, and image forming apparatus |
US8757614B2 (en) * | 2012-06-13 | 2014-06-24 | Ricoh Company, Ltd. | Slide rail, sheet feed device, and image forming apparatus |
US8733864B2 (en) * | 2012-08-08 | 2014-05-27 | E-Make Co., Ltd. | Two way drawer slide |
CN104042046A (en) * | 2013-03-15 | 2014-09-17 | 川湖科技股份有限公司 | Deceleration structure for stretching and positioning sliding rail |
US8919897B2 (en) * | 2013-05-03 | 2014-12-30 | King Slide Works Co., Ltd. | Slide assembly with deceleration device |
US20160319582A1 (en) * | 2013-12-23 | 2016-11-03 | Grass Gmbh | Damping Device |
US10087670B2 (en) * | 2013-12-23 | 2018-10-02 | Grass Gmbh | Damping device |
CN107427125A (en) * | 2014-12-10 | 2017-12-01 | S·迈尔斯 | The component of drawer and drawer |
CN112617483A (en) * | 2019-10-09 | 2021-04-09 | 川湖科技股份有限公司 | Slide rail assembly and slide rail external member thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KING SLIDE WORKS CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, GENG-JIN;TSENG, I-MING;REEL/FRAME:011646/0279 Effective date: 20010313 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |