CN201299316Y

CN201299316Y - Three-section synchronous drawer guide rail

Info

Publication number: CN201299316Y
Application number: CNU2008202023741U
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-24
Filing date: 2008-10-24
Publication date: 2009-09-02
Anticipated expiration: 2018-10-24

Abstract

Disclosed is a three-section synchronous drawer guide rail, in particular to a three-section drawer guide rail with smooth hand feel when a drawer is pulled, which belongs to the field of furniture. The three-section synchronous drawer guide rail comprises a fixed rail, a middle rail, a movable rail and a bumper, wherein the fixed rail is fixed on the inner wall of a cabinet of the drawer, a first retainer is arranged between the fixed rail and the middle rail, and a second retainer is disposed between the middle rail and the movable rail. The three-section synchronous drawer guide rail is characterized in that the first retainer is provided with a post row, the movable rail is equipped with racks, the post row is formed by linearly arranging a plurality of drive posts with identical shape and interval, the middle rail is provided with a fly wheel, the post row is parallelly opposite to the racks and both the post row and the racks contact with the fly wheel. The three-section guide rail synchronous open-and-shut rack/ fly wheel/ post row structure guarantees two three-section guide rails on two sides of a drawer to synchronously extend in movement, thereby greatly improving the hand feeling of pulling a drawer. The utility model is simple in structure, convenient in mounting and dismounting, low in cost, and is durable, which is suitable for being installed on all furniture to use.

Description

Three-section synchronous drawer guide rail

Technical field

The utility model 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, retaining rail or movable rail, middle rail, retaining rail three joints, between movable rail and middle rail, middle rail and the retaining rail 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, it has installed a plastics tooth row on movable rail, on the plastic cage between retaining rail and the middle rail, also making a tooth row, article two, tooth row all by a plurality of shapes identical and at interval identical drive post form along arranged in a straight line, a plastics flywheel is installed on middle rail, article two, post is arranged relatively parallel and is all contacted with flywheel, so formed the flywheel/post row structure that makes three joint guide rail synchronous on-offs, 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.

The utility model content

The purpose of this utility model provides the suitable cunning of a kind of folding, the three-section synchronous drawer guide rail more firm than existing product, that cost is lower.

Three-section synchronous drawer guide rail comprises retaining rail, middle rail, movable rail and buffer; Retaining rail is fixed on drawer cupboard inwall,

Between retaining rail and the middle rail first retainer is arranged, 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, post row by a plurality of shapes identical and at interval identical drive post form along arranged in a straight line; In flywheel is arranged on the rail, post row is relatively parallel and contact with flywheel with tooth bar.

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

The utility model provides and has made three tooth bar/flywheel/posts that save the guide rail synchronous on-offs arrange structure, has guaranteed that two covers, the three joint guide rails that are installed in the drawer both sides synchronously stretch the feel when having improved the push-and-pull drawer greatly when motion; The utility model 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 utility model embodiment 1;

Fig. 2 is the outside drawing after Fig. 1 removes retaining rail;

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

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

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

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

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Feature technology of the present utility model for convenience of description, 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 retaining rail 1, middle rail 2, movable rail 3, first retainer 4 and second retainer 5 and the buffer etc. in the traditional product.Retaining rail 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 retaining rail 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 retaining rail 1 simultaneously, retaining rail, 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 is formed along arranged in a straight line by 48 identical drive post 8 in interval; Be welded with a tooth bar 7 that is bent into by steel plate on the bending side of movable rail 3 bottoms, 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 retaining rail 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 retaining rail 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 camber line 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 retaining rail 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 retaining rail 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 utility model 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 retaining rail 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 retaining rail 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 retaining rail (1), middle rail (2), movable rail (3) and buffer; Retaining rail (1) is fixed on drawer cupboard inwall, between retaining rail (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 described first retainer (4), and described movable rail (3) has tooth bar (7), post row (6) by a plurality of shapes identical and at interval identical drive post (8) form along arranged in a straight line; Flywheel (9) is arranged on the rail (2) in described, 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 described, described flywheel (9) is installed on the flywheel shaft (10).

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