CN2330234Y - Steel-ball slideway for drawer - Google Patents

Abstract

The utility model relates to a steel-ball slideway for a drawer. The utility model is mainly that a clamping piece is made by integral forming by plastic materials or other materials to be positioned on a slideway by a fixed hook and a clamping plate to relieve process of rivet fixation to avoid that the utility model is fixed by rivets to generate stress concentration because of the point contact to cause the utility model to be destroyed, and the rivet fixation mode is replaced by a line contact positioning mode or a surface contact positioning mode to cause the service life and the reliability of the utility model to be improved. The production efficiency and the assembly efficiency can also be largely improved, and the utility model has high industrial use performance.

Description

Drawer steel ball slide rail

The relevant a kind of structure-improved that is used in general drawer, retaining case cabinet and computer desk Key board drawer it " drawer steel ball slide rail " of the utility model.

As shown in Figure 1, for commonly using the three-dimensional appearance combination schematic diagram of drawer steel ball slide rail, its mainly be by chute 10, clip 20, and in groove 30 formed.

Chute 10 is tied to form a suitable set shape, and is provided with plurality of fixed hole 11 in appropriate location, and this fixed hole 11 sees through joint element 12 and articulates a clip 20, and clip 20 can keep movable shape along joint element 12 axis directions; Clip 20 is made of in one-body molded mode pressure holding sheet 21 and catch 22, and pressure holding sheet 21 connects the place with catch 22 pivots and makes a shoulder 23, provide respectively with the locating hole 222,211 of above-mentioned fixed hole 11 with numbers in catch 22 and pressure holding sheet 21 appropriate positions and to wear for joint elements 12, flexible lamellar body 212,223 is received at the symmetric position place, combination two ends of pressure holding sheet 21 and catch 22 in addition; Wherein, elastic strip body 212,223 two ends just can be pasted with side surface within the chute 10 and be touched, with the top drive clip 20 make itself and chute 10 inner surfaces keep suitable between distance.

Middle groove 30 generally becomes a suitable set shape, and middle groove 30 1 side open ends are provided with a stop block 31, these stop block 31 appropriate locations and a plurality of retaining pieces 32 of corresponding prominent system, retaining piece 32 1 ends more can be shaped on an end difference 321, form blockings in order to do shoulder 23, make drawer be subject to activities in the chute 10 and unlikelyly deviate from the clip 20 of going into back, position; Wherein, but the proper voltage supply of 32 distances that formed of two retaining pieces is held sheet 21 in the free activity of horizontal direction, and side one end is to make an inclined-plane 322 outside the retaining piece 32.

Action schematic diagram when Fig. 2 uses for said structure, when chute 10 desire with middle groove 30 covers fashionable, elastic strip body 223 end faces that the catch 22 of clip 20 is connected inclined-plane 322 proper and retaining piece 32 pastes and touches, if clip 20 is continuous stressed forward the time, the elastic strip body 223 of clip 20 will move forward with the inclined-plane 322 of retaining piece 32, and the top system that gradually is subjected to it then makes clip 20 distortion and within chute 10 side surface contract and move, and can pass through by stop block 31 tops smoothly, in order to do the fit of sharp chute 10 with middle groove 30.Otherwise, if desire to make drawer to break away from fully, then push pressure holding sheet 21 and make it displacement along joint element 12 axis directions towards chute 10 interior sidewall surface, make shoulder 23 separate, and drawer is pulled out the purpose that can reach disengaging fully simultaneously with end difference 321.

Though right said structure has the dynamic resistance effect of commonly using the well-formed, right its still has a fly in the ointment and can be improved, often utilize the means of rivet as clip structure wherein with engaging of chute as the location, though reach its effect, but clip is the element that bears bump, with rivet location situation, well imagine, it is stressed will concentrate on that joint element contacts with locating hole on the clip a bit on, form the phenomenon that so-called stress is concentrated easily, with the empiric observation of general use, the destruction situation that distortion of clip locating hole or rivet come off often takes place, provable this stress is concentrated the sequelae that is caused; Moreover, must change clip if damaged or when the assembling clip of production process, engage with rivet or other fixed form, certainly will make that production process is empty to increase one formality, the efficient of production also can't improve; In addition, the stop block that matches with clip is also often bad because of the design of its fixed form, causes deviations even the phenomenon that comes off produces.

Therefore, the purpose of this utility model is to provide a kind of improved drawer steel ball slide rail, and it can improve packaging efficiency, stability and reliability that reduce wear and increase are used.

According to drawer steel ball slide rail of the present utility model, it is constituted with chute, clip, middle groove, it is characterized in that:

Chute is tied to form a suitable set shape, is provided with a fixed hook and a clamp in appropriate location, in order to the locator card film-making thereon;

The member that clip is one of the forming, the one end is provided with a fixed groove, and the other end is provided with the draw-in groove of a rectangle hollow out, in order to the stay hook that cooperates chute and clamp to locate, and clamp is located in the mode that line or face contact with the joint system of draw-in groove, can disperse stressed avoiding to converge; Wherein the shoulder of clip is for having the inclined-plane of gradient, and end is provided with a guide ramp before shoulder, in order to cooperate the stop block inclined-plane, forms the way of contact of inclined-plane to the inclined-plane, and the function of reduce wear is arranged;

The general one-tenth of middle groove one suitable set shape, its open end is provided with a stop block, and the retaining piece on the stop block is provided with a back bevel, in order to match with the inclined-plane that shoulder formed of clip, prevents the function of beating when having dynamic resistance; Its stop block outermost is provided with a buffer part, the impact that is produced during groove in its role is to enter fully in order to buffering chute, and form a protective device.

Drawer steel ball slide rail of the present utility model is owing to make a clip with a plastic cement or other material in integrally formed mode, the connected structure that places a chute body punching press to make, replace the some contact of riveted joint with the contact of line or face, to avoid the concentrated shortcoming of stress, make its intensity higher, also fixture must not arranged, the efficient of assembling is significantly to improve.

For characteristics of the present utility model and feature are had further understanding, make a detailed explanation below in conjunction with each accompanying drawing.

Brief description of drawings:

Fig. 1: be the structural representation of commonly using drawer steel ball slide rail.

Fig. 2: be the action schematic diagram of commonly using drawer steel ball slide rail.

Fig. 3: another kind is commonly used the fixed structure schematic diagram of clip.

Fig. 4 A, B: be the utility model structure-improved schematic diagram.

Fig. 5: be the utility model action schematic diagram.

Shown in Fig. 4 A, be the clip 20 structure-improved schematic perspective views of the utility model.The compressed tablets that main system is had former clip 20, catch and elastic strip body, be shaped in integrally formed mode with plastic cement or other material, and Yu Yiduan adds a fixed groove 26, and the draw-in groove 25 that designs a rectangle hollow out at the position of former compressed tablets, be engaged within the chute 10 side and one of make a stay hook 13 and an outstanding clamp 14 with punching press, form the fixture of correspondence mutually, occasion at assembling or replacing clip 20, only fixed groove 26 must be inserted within the fixed hook, clamp 14 promptly can enter in the draw-in groove 25, and clip 20 is positioned within the chute 10 on the face, need not use other fixture as rivet etc. fully, this point can significantly promote for efficient of production and assembly; In addition, no matter be stay hook 13 and the combination of fixed groove 26 or the location of clamp 14 and draw-in groove 25, be all the contact of a line or face, when bearing bump strength, it then its strength can be disperseed, avoid stress to concentrate, so with respect to using the rivet fixed form that higher intensity is arranged, the life-span of use prolongs naturally; Moreover the shoulder 23 of clip 20 is one to have the inclined-plane of gradient, and in its front end one guide ramp 24 is set, in order to cooperate stop block 31.Shown in Fig. 4 B; the main improvement of the stop block 31 of the utility model; except that being provided with of original inclined-plane 322; also, be designed to cooperate shoulder 23 gradients inclined-plane 323 afterwards, it is had except that the better dynamic resistance effect of moving direction the face of retaining piece 31 in order to engage with the shoulder 23 of clip 20; the function that prevents that it from beating is also arranged; its open end also is provided with a buffer part 33, and the impact that is produced during groove 30 in entering fully in order to buffering chute 10 is the design of a protective device.

See also shown in Figure 5ly, the action relationships position side view when engaging for the utility model can clearlyer be found out the shoulder 23 of clip 20 and cooperating of scotch 31.Because shoulder 23 is that an inclined plane contacts with back bevel 323, so except that possessing the dynamic resistance effect that moves horizontally on the direction, also being not easy has better stability in use just like beat vertical with moving direction of the direction of arrow than aforementioned structure; And the main purpose of the set guide ramp 24 of shoulder 23 front ends, when being to make clip 20 by scotch 31, no matter advance and go out, the inclined-plane 322 of its guide ramp 24 and scotch 31, contact in the mode of inclined-plane the inclined-plane, so can avoid violent beating to cause wearing and tearing, improve aforementioned structure, arranged longer service life with of the way of contact of simple plane to the inclined-plane.

Moreover, as shown in Figure 3, be clip 20 fixed forms that another kind is commonly used, its main feature is that clamp 14 and draw-in groove 25 are arranged on the outermost of clip 20 and are close to side part within the chute, find through experiment, this kind fixed form is also infeasible, the normal shoulder 23 that produces engages phenomenon uncertain and that get loose with back bevel 323, with the viewpoint analysis of mechanics as can be known, main stress point is the shoulder 23 of clip, its position be with chute 10 within the side non-for same plane, so clamp 14 will be except the impact reactive force of bearing shoulder 23 with draw-in groove 25 joints, also can supervene a moment loading, so this moment loading then be cause that shoulder 23 and back bevel 323 get loose main cause.Relatively, the utility model clamp 14 is the position that is provided with an of the best with the bonding station of draw-in groove 25, makes the stress point of its contact point and shoulder 20 in the same plane, can avoid the generation of moment loading, thereby unexpected have the phenomenon that gets loose to produce.

In sum, drawer steel ball slide rail structure-improved of the present utility model, the drawer steel ball that a kind of intensity is higher, reliability is better, the life-span is longer rail structure is provided really, and simplified the work of assembling when producing, improved production efficiency, real creative and novelty has more the industry applications of height, meet the application condition of patent, so apply for a patent in accordance with the law.

Claims (1)

1. drawer steel ball slide rail, it is constituted with chute, clip, middle groove, it is characterized in that,

Chute is tied to form a suitable set shape, is provided with a fixed hook and a clamp in appropriate location, in order to the locator card film-making thereon;

The member that clip is one of the forming, the one end is provided with a fixed groove, and the other end is provided with the draw-in groove of a rectangle hollow out, in order to the stay hook that cooperates chute and clamp to locate, and clamp is located in the mode that line or face contact with the joint system of draw-in groove, can disperse stressed avoiding to converge; Wherein the shoulder of clip is for having the inclined-plane of gradient, and end is provided with a guide ramp before shoulder, in order to cooperate the stop block inclined-plane, forms the way of contact of inclined-plane to the inclined-plane, and the function of reduce wear is arranged;

The general one-tenth of middle groove one suitable set shape, its open end is provided with a stop block, and the retaining piece on the stop block is provided with a back bevel, in order to match with the inclined-plane that shoulder formed of clip, prevents the function of beating when having dynamic resistance; Its stop block outermost is provided with a buffer part, the impact that is produced during groove in its role is to enter fully in order to buffering chute, and form a protective device.

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