GB2423238A

GB2423238A - Synchronising device for a three part drawer slide assembly

Info

Publication number: GB2423238A
Application number: GB0524106A
Authority: GB
Inventors: Chun-Chaing Wang; Ken-Ching Chen; Shih-Long Hwang; Shun-Ho Yang
Original assignee: King Slide Works Co Ltd
Current assignee: King Slide Works Co Ltd
Priority date: 2005-01-07
Filing date: 2005-11-28
Publication date: 2006-08-23
Anticipated expiration: 2025-11-28
Also published as: GB0524106D0; GB2423238B8; JP3119212U; DE202005018459U1; TWI285538B; GB2423238B; TW200624062A

Abstract

A synchronizing device for a three part drawer slide assembly includes a loading rail 2 secured to a fixed rail 3 to load a sliding rail 1, and is in such an arrangement that the loading rail and the sliding rails are capable of doing linear reciprocal movement with respect to the fixed rail. The loading rail comprises a linking plate 7 at the rear end. The sliding rail comprises a protuberance 11 corresponding to the linking plate. The fixed rail comprises a releasing member 8. By pulling the sliding rail, the protuberance engages with the linking plate, which brings the loading rail to slide simultaneously. The releasing member pushes the linking plate to rotate it (figs 7 and 8), which causes the protuberance to detach from the linking plate to allow the sliding rail to extend along the loading rail to its extremity.

Description

SYNCHRONIZING DEVICE FOR A TRI-SECTOR SLIDE

This invention relates to a synchronizing device for a tn-sector slide, and more particularly to a sliding rail and a loading rail to slide simultaneously to a predetermined position where the loading rail stops while the sliding rail can continue sliding to its maximum position.

A conventional tn-sector slide on the market includes a fixed rail (outer rail), a loading rail (middle rail) and a sliding rail (inner rail) .

This design has been derived for many years. The common design is that the loading rail is able to slide along with the sliding rail to the extreme position and to block the sliding rail thereat, as disclosed in US Patent Nos. 5,551,775; 5,575,109 and published application Nos. 2002/0057042; 2003/0080659; 2003/0107309; 2003/0111942 and 2003/0178922.

However, a synchronized movement of a loading rail and a sliding rail still has a lot of field to he modified, which is the reason of this invention.

It is the primary objective of the present invention to provide a synchronizing device for a tn-sector slide, which allows a loading rail to slide with a sliding rail to a predetermined position and stop the movement of the loading rail while the sliding rail is still movable to its extreme position.

It is another objective of the present invention to provide a synchronizing device for a In-sector slide, which provides an easy operated closet or drawer rail.

According to an aspect of the invention, there is provided a synchronizing device for a tn-sector slide comprising: a sliding rail having a protuberance facing inwardly, said protuberance having a stop edge thereof; a loading rail having an arcuate surface at center in cross section, a rear end of said arcuate surface being pivotally connected with a linking plate by a shaft, the rear eiid of said arcuate surface comprising a through trough and a slot; a fixed rail having an arcuate releasing member at an inner wall; said linking plate comprising a flat body mounted to said arcuate surface of said loading rail, said flat body having a pivoting hole 1 0 for insertion of said shaft, one side of said flat body being bent to form a wall facing upwardly, said wall being bent again from its top edge to form a trigger plate to insert into said through trough of said loading rail, said trigger plate having a width larger than that of said linking plate, said flat body being formed with an elastic arm to insert into said slot of said loading rail to provide a restoring force to said linking plate; thereby said stop edge of said protuberance of said sliding rail engaging with said wall of said linking plate when said sliding rail is pulled to link said loading rail to move simultaneously, and said releasing member pushing said trigger plate to swing said linking plate, which brings said protuberance to detach from said linking plate to allow said sliding rail to extend along said loading rail to its extremity.

There now follows a description of preferred embodiments of the invention, by way of non-limiting example, with reference being made to the accompanying drawings in which: Figure 1 is an exploded view of a preferred embodiment of the present invention; Figure 2 is an enlarged view of the preferred embodiment of the present Invention; Figure 3 is a perspective view of the preferred embodiment of the present invon; Figure 4 is a side view showing a collapsed status of the preferred embodiment of the present invention; Figure 5 is a side view showing a loading rail and a sliding rail being pulled outward to a first position; Figure 6 is a view similar to FIG. 5 showing the loading rail and the sliding rail being pulled outward to a second position; Figure 7 is a view similar to FIG. 5 showing the loading rail and the sliding rail being pulled outward to a third position; Figure 8 is a view similar to FIG. 5 showing the loading rail and the sliding rail being pulled outward to a fourth position; Figure 9 is a view similar to FIG. 5 showing the loading rail and the sliding rail being pulled outward to a fifth position; Figure 10 is a view similar to FIG. 5 showing the loading rail and the sliding rail being pulled outward to its extreme position; and Figure 11 is a perspective view of another preferred embodiment of the present invention.

As shown in Figures 1 through 3, a synchronizing device of the present invention is applied to a tn-sector slide and comprises a sliding rail 1, a loading rail 2 and a fixed rail 3. There are a sliding guide 4 formed between the sliding rail I and the loading rail 2 and a sliding guide 5 formed between the loading rail 2 and the fixed rail 3 to facilitate sliding movement. The loading rail 2 comprises a sliding support 6 at the front end.

The sliding rail 1 comprises a protuberance 11 facing inwardly.

The protuberance II has a stop edge Ill and a guiding edge 112 thereof.

The loading rail 2 is formed with an arcuate surface at center in cross section. The rear end of the arcuate surface is provided with a through hole 21 for a shaft 22 to insert there through. A through trough 23 and a slot 24 are formed close to the through hole 21, so as to connect with a linking plate 7 thereat.

The fixed rail 3 comprises a releasing member 8 at the inner wall.

The releasing member 8 is an arcuate plate having two holes 81 at respective ends thereof for being engaged with the inner wall of the fixed rail 3 by rivets.

The linking plate 7 comprises a flat body 71 mounted to the arcuate surface of the loading rail 2. The flat body 71 has a pivoting hole 711 for the shaft 22 to insert therein. One side of the flat body 71 is bent to form a wall 72 facing upwardly. The wall 72 is bent again from the top edge to form a trigger plate 73 to insert into the through trough 23 of the loading rail 2. The trigger plate 73 has a width larger than that of the linking plate 7. The flat body 71 of the linking plate 7 is formed with an elastic arm 74 to insert into the slot 24 of the loading rail 2 to provide a restoring force to the linking plate 7.

As shown in Figure 4, when the slide is in a collapsed status, the protuberance 11 of the sliding rail I is generally located behind and apart from the linking plate 7 of the loading rail 2. When the sliding rail I is pulled outward, as shown in Figures 5 and 6, the stop edge Ill of the protuberance II of the sliding rail 1 engages with the rear end of the wall 72 of the linking plate 7 to pull the loading rail 2 along therewith. Upon the linking plate 7 reaches to the releasing member 8 of the fixed plate 3, as shown in Figures 7 and 8, the linking plate 7 slides with the trigger plate 73 protruding from the through trough 23 of the loading rail 2 along the releasing member 8, which causes the linking plate 7 to swing. The stop edge Ill of the protuberance 11 of the sliding rail I detaches from the end of the wall 72, thus the sliding rail I is able to extend with respect to the loading rail 2, as shown in Figure 9. Upon the loading rail 2 has reached to its extremity, as shown in Figure 10, the trigger plate 73 of the linking plate 7 engages with the releasing member 8, and the protuberance 11 of the sliding rail I detaches from the wall 72 of the linking plate 7.

Thus the sliding rail I is still pulled to its extremity to complete the final extension of the tn-sector slide.

As shown in Figure 11, a fixed rail 3A is provided with a releasing member 8A which is an arcuate plate integrally formed with the fixed rail 3A.

Claims

1. A synchronizing device for a tn-sector slide comprising: a sliding rail having a protuberance facing inwardly, said protuberance having a slop edge thereof; a loading rail having an arcuate surface at center in cross section, a rear end of said arcuate surface being pivotally connected with a linking plate by a shaft, the rear end of said arcuate surface comprising a through trough and a slot; a fixed rail having an arcuate releasing member at an inner wall; said linking plate comprising a fiat body mounted to said arcuate surface of said loading rail, said fiat body having a pivoting hole for insertion of said shaft, one side of said flat body being bent to form a wall facing upwardly, said wall being bent again from its top edge to form a trigger plate to insert into said through trough of said loading rail, said trigger plate having a width larger than that of said linking plate, said flat body being formed with an elastic arm to insert into said slot of said loading rail to provide a restoring force to said linking plate; thereby said slop edge of said protuberance of said sliding rail engaging with said wall of said linking plate when said slidmg rail is pulled to link said loading rail to move simultaneously, and said releasing member pushing said trigger plate to swing said linking plate, which brings said protuberance to detach from said linking plate to allow said sliding rail to extend along said loading rail to its extremity.

2. The synchronizing device for a tn-sector slide, as recited in claim I, wherein said releasing member is an arcuate plate having holes at respective ends thereof for being engaged with the inner wall of said fixed rail by rivets.

3. The synchronizing device for a tn-sector slide, as recited in claim 1, wherein said releasing member is an arcuate plate integrally formed with said fixed rail.

4. A synchronising device for a three-part slide assembly as hereinbefore described and/or illustrated with reference to the accompanying drawings. q

4. A synchronizing device for a tn-sector slide as hereinhefore described and/or illustrated with reference to the accompanying drawings.

Amendments to the claims have been filed as follows 1. A synchronising device for a three-part slide assembly comprising: a sliding rail, a loading rail and a fixed rail, the loading rail being positioned between the sliding rail and the fixed rail; the sliding rail having a protuberance facing inwardly in a direction towards the loading rail, said protuberance having a stop edge thereon; the loading rail having at its centre a surface having a c-shape in cross section, a rear end of said c-shaped surface being pivotally connected with a linking plate by a shaft, the rear end of said c-shaped surface comprising a through groove and a slot; the fixed rail having a raised releasing member at an inner wall; said linking plate comprising a flat body mounted on said c-shaped surface of said loading rail, said flat body having a hole for insertion of said shaft, one side of said flat body being bent to form a wall facing upwardly, said wall being bent again from its top edge to form a trigger plate to insert into said through groove of said loading rail, said trigger plate having a width larger than that of said linking plate, said flat body being formed with a resilient ann to insert into said slot of said loading rail to provide a restoring force to said linking plate; whereby said stop edge of said protuberance of said sliding rail engages with said wall of said linking plate when said sliding rail is pulled to link said loading rail to move simultaneously, and said releasing member pushing said trigger plate to pivot said linking plate, which brings said protuberance to disengage from said linking plate to allow said sliding rail to extend along said loading rail to its extremity.

2. The synchronising device for a three-part slide assembly, as recited in claim 1, wherein said releasing member is a raised plate having holes at respective ends thereof for being attached to the inner wall of said fixed rail by rivets.

3. The synchronising device for a three-part slide assembly, as recited in claim 1, wherein said releasing member is a raised plate integrally formed with said fixed rail.