CN101669731B

CN101669731B - Three-section synchronous drawer guide rail

Info

Publication number: CN101669731B
Application number: CN200810198420XA
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-08
Filing date: 2008-09-08
Publication date: 2011-10-19
Anticipated expiration: 2028-09-08
Also published as: CN101669731A

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 with smooth handfeel when a drawer is dragged. The three-section synchronous drawer guide rail comprises a fixed rail, a middle rail, a movable rail and a buffer, wherein the fixed rail is fixed on the inner wall of the drawer; a first retainer is arranged between the fixed rail and the middle rail; and a second retainer is arranged 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 first post row; the movable rail is provided with a second post row; the first post row and the second post row are all formed by linearly arranging a plurality of driving posts in the same shape at intervals; the middle rail is provided with a flywheel; and the first post row and the second post row are parallelly opposite and are connected with the flywheel. The three-section synchronous drawer guide rail is provided with the flywheel/post row structure, which makes the three-section guide rail synchronously opened and closed, to ensure that two sets of three-section guide rails arranged on two sides of the drawer are synchronously stretched when moving so as to greatly improve the handfeel for pushing and pulling the drawer. The three-section synchronous drawer guide rail has simple structure and convenient assembly and disassembly, and is suitable to be mounted on 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, 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.

Summary of the invention

The purpose of this invention is to provide a kind of folding more along sliding three-section synchronous drawer guide rail.

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, and between middle rail and the movable rail second retainer is arranged, and has roller to contact with middle rail with retaining rail simultaneously in first retainer, retaining rail and middle rail is rolls to cooperate; There is roller to contact with movable rail with middle rail simultaneously in second retainer, makes middle rail and movable rail be to roll and cooperate; Have first post row, movable rail that second post row is arranged on first retainer, all identical the and identical drive post in interval forms along arranged in a straight line by a plurality of shapes for first post row and second post row; On the middle rail flywheel is arranged, first post row arranges relatively parallel with second post and contacts with flywheel.

As optimal way of the present invention, the cross section contour of the drive post on the post row can be round, and perhaps this outline line contains the involute section or contains the circular arc line segment or contain straightway.

The invention provides the flywheel/posts 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, 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 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;

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

Fig. 6 is embodiment 1 second post row's a outside drawing;

Fig. 7 is columniform drive post sectional view;

Fig. 8 is the drive post sectional view that contains the involute section;

Fig. 9 is the drive post sectional view that contains arc;

Figure 10 contains the drive post sectional view of straightway;

Figure 11 is the bottom view of the damper seat of embodiment 1 buffer;

Figure 12 is the assembling relationship figure that damping tube, the damper of embodiment 1 buffer draws pin, screwed pipe extension spring, damper pulling block, damper slide block and group pin;

Figure 13 is the schematic diagram of embodiment 1 buffer assembly;

Figure 14 is the part position graphs of a relation of embodiment 1 three joint guide rails when folding;

Part position graph of a relation when Figure 15 is embodiment 1 three joint guide rails extensions;

Figure 16 is that embodiment 2 removes roller in first retainer and the cutaway view behind the roller in second retainer.

The specific embodiment

The present invention is described in further detail below in conjunction with accompanying drawing.

Feature technology of the present invention for convenience of description, Fig. 1 to Fig. 3 and Figure 14 and Figure 15 figure 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. 6, 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 21 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; Going out first post row, 6, the first posts row 6 in the edge die casting of first retainer 4 is formed along arranged in a straight line by 64 identical drive post 8 in interval; On the bending side of movable rail 3 bottoms, be fixed with same first post row, 6 the same plastic second posts and arrange 7 (see figure 6)s; 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; First post on first retainer 4 row 6 arranges 7 relatively parallel and contact with flywheel 9 with second post on the movable rail 3, flywheel 9 has 12 moving teeth, each moving tooth inserts between two drive post 8 of first post row, 6 or second post row 7 and with drive post 8 and contacts the engagement of the similar sprocket wheel of this contact/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, be positioned at two drive post 8 on the post row and can have various preferred profiles, Fig. 7 to Figure 10 illustrates them and has the cross section contour that contains circle, involute, camber line and straight line successively; In identical product, all the cross section contour of drive post 8 is identical; Corresponding difform drive post, the profile of tooth of flywheel 9 also has corresponding different shape.

Referring to Figure 11 to Figure 13, buffer comprises that damper seat 11, damping tube 12, damper draw pin 13, screwed pipe extension spring 14, damper pulling block 15, damper slide block 16 and dial pin 17.

There is piston damping tube 12 the insides, piston draws pin 13 to be connected with damper pulling block 15 by damper, damper pulling block 15 is hinged with damper slide block 16, makes damper slide block 16 move along slideway 19 in the slideway 19 of the projection 18 embedding damper seats 11 on the damper slide block 16; Screwed pipe extension spring 14 is installed between damper seat 11 afterbodys and the damper pulling block 15, and damper seat 11 is fixed on the inwall of retaining rail by card base 20; Dial pin 17 and be welded on the movable rail, dial pin 17 and dynamically be connected with damper slide block 16.When drawer was outwards pulled out from the lining, group pin 17 fastened damper slide block 16 and moves to right together, and screwed pipe extension spring 14 is by energy storage; When drawer is closed from outside to inside, pulling force is provided and drawer is steadily voicelessly clapped by screwed pipe extension spring 14 and close.

Referring to Figure 14 and Figure 15, under first post row 6 and flywheel 9 and second post row's 7 common restraining function, first retainer 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.

Referring to Figure 16, 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, first post row, 6, second post row 7 move into the inboard of retaining rail 1; Flywheel 9,, flywheel shaft 10, first post row 6, second post row 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 (22); Retaining rail (1) is fixed on drawer cupboard inwall, between retaining rail (1) and the middle rail (2) first retainer (4) is arranged, between middle rail (2) and the movable rail (3) second retainer (5) is arranged, there is roller to contact with middle rail (2) with retaining rail (1) simultaneously in first retainer (4), retaining rail (1) and middle rail (2) is rolls to cooperate; There is roller to contact with movable rail (3) with middle rail (2) simultaneously in second retainer (5), middle rail (2) and movable rail (3) is rolls to cooperate; It is characterized in that: first post row (6) is arranged on described first retainer (4), and described movable rail (3) has second post row (7), and all identical the and identical drive post (8) in interval forms along arranged in a straight line by a plurality of shapes for first post row (6) and second post row (7); Flywheel (9) is arranged on the rail (2) in described, first post row (6) is relatively parallel and contact with flywheel (9) with second post row (7).

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: the cross section contour of described drive post (8) is round.

4. three-section synchronous drawer guide rail according to claim 1 is characterized in that: the cross section contour of described drive post (8) contains the involute section.

5. three-section synchronous drawer guide rail according to claim 1 is characterized in that: the cross section contour of described drive post (8) contains the circular arc line segment.

6. three-section synchronous drawer guide rail according to claim 1 is characterized in that: the cross section contour of described drive post (8) contains straightway.