CN101721059B

CN101721059B - Three-section synchronous drawer guide rail

Info

Publication number: CN101721059B
Application number: CN2008102186349A
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-24
Filing date: 2008-10-24
Publication date: 2012-04-25
Anticipated expiration: 2028-10-24
Also published as: CN101721059A; JP3154757U

Abstract

The invention discloses a three-section synchronous drawer guide rail, belongs to the field of furniture, and in particular relates to a three-section drawer guide rail equipped with smooth touch feeling while dragging the drawer. The three-section synchronous drawer guide rail comprises a fixed rail, an intermediate rail, a movable rail and a buffer, wherein the fixed rail is fixed on the inner wall of a cabinet for the drawer, a first retaining bracket is arranged between the fixed rail and the intermediate rail, and a second retaining bracket is arranged between the intermediate rail and the movable rail. The three-section synchronous drawer guide rail is characterized in that the first retaining bracket is provided with a column row, the movable rail is provided with a rack, and the column row is composed of a plurality of equidistant driving columns of the same shape, which are arranged along a straight line. The intermediate rail is provided with a flywheel, and the flywheel is contacted with the column row and the rack which is opposite to the column row in parallel. The synchronous-folding structure of the rack/flywheel/column row with the three-section guide rail ensures that two sets of the three-section guide rails mounted on both sides of the drawer can retract synchronously when moving, thereby greatly improving the touch feeling while pulling and pushing the drawer. The three-section synchronous drawer guide rail has the advantages of simple structure, convenient assembling and dismantling, low cost and durable in use, and is suitable for being applied to all furniture.

Description

Three-section synchronous drawer guide rail

Technical field

The invention belongs to field of furniture, especially a kind of three joint drawer guideways that have when dragging drawer along sliding feel.

Background technology

The common movable rail of drawer guideway branch, middle rail, fixed track or movable rail, middle rail, fixed track three joints; Between movable rail and middle rail, middle rail and the fixed track roller or ball are arranged all; Roller and ball are retrained by retainer; Owing to be rolling friction between the guide rail when drawer moves, so more laborsaving.In the use of three joint guide rails; Part precision and assembling means it is found that owing to there are differences; Cause the force of rolling friction between rail and the rail inhomogeneous, the order of folding is uncertain between the slide rail, cause the drawer left and right sides to drag resistance inconsistent; Influence feel, this point is need be improved.

For improving feel; A kind of three-section synchronous drawer guide rail is arranged in the market, and it has installed a plastics tooth row on movable rail, on the plastic cage between fixed track and the middle rail, is also making a tooth row; Article two, the drive post that tooth row is all identical by a plurality of shapes and the interval is identical is along arranged in a straight line forming; A plastics flywheel is installed on middle rail, and two post rows are relatively parallel and all contact with flywheel, so formed to make flywheel/post of three joint guide rail synchronous on-offs arrange structure; Make two covers, the three joint guide rails that are installed in the drawer both sides synchronously flexible when motion, the feel when having improved the push-and-pull drawer greatly.Yet in high volume production process, find to be attached to complicated and difficult firmly being installed on the movable rail of plastics tooth row manufacture craft on the movable rail, therefore need improve.

Summary of the invention

The purpose of this invention is to provide a kind of folding along sliding, the three-section synchronous drawer guide rail more firm than existing product, that cost is lower.

Three-section synchronous drawer guide rail comprises fixed track, middle rail, movable rail and buffer; Fixed track is fixed on drawer cupboard inwall, between fixed track and the middle rail first retainer is arranged, and between middle rail and the movable rail second retainer is arranged; It is characterized in that having on first retainer post row, movable rail has tooth bar, arranged in a straight line the forming in drive post edge that post row is identical and identical at interval by a plurality of shapes; In flywheel is arranged on the rail, post row is relatively parallel and contact with flywheel with tooth bar.

As further improvement of the present invention, on the bottom surface of middle rail flywheel shaft is arranged, flywheel is installed on the flywheel shaft.

The invention provides the tooth bar/flywheel/post row structure that makes three joint guide rail synchronous on-offs, two covers, the three joint guide rails that guaranteed to be installed in the drawer both sides are synchronously flexible when motion, the feel when having improved the push-and-pull drawer greatly; The present invention is simple in structure firmly, and is easy to loading and unloading, and its suitable being installed on all furniture is used.

Description of drawings

Fig. 1 is the outside drawing of the embodiment of the invention 1;

Fig. 2 is the outside drawing after Fig. 1 removes fixed track;

Fig. 3 is the parts explosion of Fig. 1;

Fig. 4 is that embodiment 1 removes roller and the cutaway view behind the roller in second retainer in first retainer;

Fig. 5 is the outside drawing of embodiment 1 flywheel and flywheel shaft;

Fig. 6 is the outside drawing of embodiment 1 tooth bar;

Fig. 7 is the outside drawing of embodiment 1 first retainer;

Fig. 8 be embodiment 1 movable rail when being in collapse state each position of components concern sketch map;

Fig. 9 is that embodiment 1 movable rail is in that each position of components concerns sketch map when stretching out state;

Figure 10 is that embodiment 2 removes roller and the cutaway view behind the roller in second retainer in first retainer.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is done further detailed description.

Be convenient explanation feature technology of the present invention, Fig. 1 to Fig. 3 and Fig. 8 and Fig. 9 all canting product put posture, D position pointed is the bottom of product among Fig. 1, in the actual use of product, this position is down.

Referring to Fig. 1 to Fig. 7, embodiment 1 has fixed track 1, middle rail 2, movable rail 3, first retainer 4 and second retainer 5 and the buffer etc. in the traditional product.Fixed track 1, middle rail 2, movable rail 3 all are metal plate punching spares; First retainer 4 and second retainer 5 are made of plastics; First retainer 4 is between fixed track 1 and the middle rail 2; Second retainer 5 is between middle rail 2 and the movable rail 3; Roller (not shown) in each retainer contacts with movable rail 3 with middle rail 2 or middle rail 2 with fixed track 1 simultaneously, fixed track, middle rail, movable rail is rolls to cooperate; Go out post in the edge die casting of first retainer 4 and arrange 6 (see figure 7)s, post row 6 by the identical drive post 8 in 48 intervals along arranged in a straight line forming; On the bending side of movable rail 3 bottoms, be welded with a tooth bar 7 that is bent into by steel plate, the cross section of tooth bar 7 is n shape, goes out 56 tooth (see figure 6)s at its side blow; Bending side middle part riveted joint in middle rail 2 bottoms has a flywheel shaft vertical with bending side 10, is set with plastic flywheel 9 (see figure 5)s on the flywheel shaft 10, and flywheel 9 can freely rotate on flywheel shaft 10; Post on first retainer 4 row 6 is relatively parallel and contact with flywheel 9 with the tooth bar on the movable rail 37; Flywheel 9 has 12 moving teeth; Each moving tooth inserts between two drive post 8 of post row 6 and between two teeth of tooth bar 7 and with drive post and toe joint and touches, the engagement of moving tooth and the similar sprocket wheel of contacting of flywheel/chain drive middle sprocket and chain.Two at middle rail 2 is shaped on the spacing block set (not shown) respectively, at two of fixed track 1 and movable rail 3 the spacing block set (not shown) is arranged also, and they make first retainer 4 and second retainer 5 can be from fixed track 1 or rail 2 or from movable rail 3 slippages therefrom.

According to the product of different purposes, the drive post 8 that is positioned on the post row can have various preferred profiles, and drive post 8 has specific cross section contour, and this outline line can contain circle or can contain involute or can contain straight line.In identical product, all the cross section contour of drive post 8 is identical; Corresponding difform drive post, the profile of tooth of the profile of tooth of flywheel 9 and tooth bar 7 also has corresponding different shape.

Buffer comprises dampener body 11 and dials pin 12 that dampener body 11 is fixed on fixed track 1 inboard, dials the edge that pin 12 is welded on movable rail 3.When movable rail 3 was return with drawer, buffer was started working and drawer slowly and is closely clapped close.

Referring to Fig. 8 and Fig. 9; Under the common restraining function of post row 6 and flywheel 9 and tooth bar 7, first retainer 4 and movable rail 3 are that uniform velocity is carried out in the other direction with respect to the motion of middle rail 2, thereupon fixed track 1 and movable rail 3 with respect to the motion of middle rail 2 basically also in the other direction uniform velocity carry out; Therefore; Two covers, the three joint guide rails that are installed in the drawer both sides also are synchronous when motion, make the frictional force basically identical of drawer left and right sides in the process that opens and closes, and have improved feel greatly.

Because tooth bar 7 simple shape of the present invention can be used the sheet metal punch forming, can firmly be fixed on the movable rail with the method for welding again, the technology of processing and assembling is all very simple, and with low cost, durable in use.

Referring to Figure 10, embodiment 2 is that with the difference of embodiment 1 overbending direction of fixed track 1 is different, and the cross sectional shape of first retainer 4, middle rail 2, second retainer 5 and movable rail 3 all is respectively the mirror image among the embodiment 1; Thereupon, flywheel 9, flywheel shaft 10, post row 6, tooth bar 7 all move into the inboard of fixed track 1; Flywheel 9, flywheel shaft 10, post row 6, tooth bar 7 rail 1 that all is fixed is surrounded and is protected.Though the shape of each parts is different with embodiment's 1, their function is identical.

Claims

1. three-section synchronous drawer guide rail, it comprises fixed track (1), middle rail (2), movable rail (3) and buffer; Fixed track (1) is fixed on drawer cupboard inwall, between fixed track (1) and the middle rail (2) first retainer (4) is arranged, and between middle rail (2) and the movable rail (3) second retainer (5) is arranged; It is characterized in that: post row (6) is arranged on said first retainer (4), and said movable rail (3) has tooth bar (7), arranged in a straight line the forming in drive post (8) edge that post row (6) is identical and identical at interval by a plurality of shapes; Flywheel (9) is arranged on the rail (2) in said, post row's (6) same tooth bar (7) is relatively parallel and all contact with flywheel (9).

2. three-section synchronous drawer guide rail according to claim 1 is characterized in that: on the bottom surface of rail (2) flywheel shaft (10) is arranged in said, said flywheel (9) is installed on the flywheel shaft (10).

3. three-section synchronous drawer guide rail according to claim 1 is characterized in that: said drive post (8) has specific cross section contour, and this outline line contains circle or involute or straight line.