CN101219018A

CN101219018A - Sliding rail

Info

Publication number: CN101219018A
Application number: CNA2007102000275A
Authority: CN
Inventors: 黄国明; 余末明; 周海晨
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fulian Precision Electronics Tianjin Co Ltd
Priority date: 2007-01-09
Filing date: 2007-01-09
Publication date: 2008-07-16
Anticipated expiration: 2027-01-09
Also published as: CN101219018B

Abstract

A slide rail comprises a first rail, a second rail and a third rail, the three of which all comprise two side arms. The first rail comprises a fixing plate and the two side arms thereof are respectively bended at the two ends of the fixing plate; the second rail is housed at a housing space formed by the two side arms of the first rail and the fixing plate and the two side arms of the second rail partially and respectively stretch out of the housing spaced formed by the two side arms of the first rail and the fixing plate; the stretching parts are respectively connected with the two side arms of the third rail, thereby, the clearances among the three rails are effectively expanded, which leaves sufficient space for other structures to be arranged on the rails.

Description

Slide rail

Technical field

The present invention relates to a kind of slide rail, leave slide rail between particularly a kind of adjacent rail body than large space.

Technical background

According to the needs of actual conditions, drawer sliding rail is divided into two kinds of ball slide rail and sliding track without ball.The ball slide rail push-and-pull is convenient, but cost is higher, and element such as ball rack is easy to damage and cause ball slide rail can not continue to use.So comparatively speaking, the cost of sliding track without ball is lower.Generally speaking, the shape of cross section of three-sectional sliding-rail mostly be outer rail be sheathed on middle rail, middle rail be sheathed in three layers of intussusceptions installing mode of rail, such structure helps the installation of slide rail and fixing.But, slide or come off for the accident that prevents the rail body, generally be equiped with the positioner of the corresponding rail body of locking between the rail body of three-sectional sliding-rail, have only when described positioner is in released state, corresponding rail body just can be done and stretch or the retraction slip.Above-mentioned slide rail does not usually have enough spaces in order to the installing positioner owing to less at interval between three rail bodies.

Summary of the invention

In view of above content, be necessary to provide the slide rail that leaves suitable installing space between a kind of rail body.

A kind of slide rail, comprise one first rail, one second rail and one the 3rd rail, described three rails comprise two side arms respectively, described first rail comprises a fixed head, the two side arms of described first rail is respectively from the bending of the two ends of described fixed head, described second rail is contained in the two side arms and the formed receiving space of fixed head of described first rail, the two side arms of described second rail is partly stretched out the two side arms and the formed receiving space of fixed head of described first rail respectively, and is connected with the two side arms of the 3rd rail respectively with extension.

Compare prior art, the two side arms that the side arm of second rail of described slide rail partly stretches out described first rail is connected with described the 3rd rail with the formed receiving space of fixed head, effectively increased the interval between three rail bodies, for the installing of other structures on the rail body stays adequate space.

Description of drawings

Fig. 1 is the three-dimensional exploded view of slide rail better embodiment of the present invention.

Fig. 2 is the three-dimensional combination figure of slide rail better embodiment of the present invention.

Fig. 3 is the cross-sectional view of slide rail better embodiment of the present invention.

The specific embodiment

See also Fig. 1 and Fig. 2, be slide rail better embodiment of the present invention, it comprises the positioner between one first rail 20, one second rail 40, one the 3rd rail 60 and at least one rail body, first rail 20 can be fixed in a fixed object, as cabinet or rack, 60 sidewalls that are fixed in a drawer or servomechanism of the 3rd rail, second rail 40 is contained between first rail 20 and the 3rd rail 60, by the track between adjacent rail body, second rail 40 and the 3rd rail 60 can be done with respect to first rail 20 and stretch or the slip of retraction direction, so that drawer/servomechanism pulled out or push cabinet/rack.Described positioner is located between the adjacent rail body, is used to prevent the accident slip of corresponding rail body, has only when positioner is in released state, and corresponding rail body just can be done and stretch or the retraction slip.

See also Fig. 3, first rail 20 comprises a fixed head 22, a upper arm 24 and a underarm 26, and fixed head 22 is a vertical plate body, and upper arm 24 and underarm 26 bend to same direction symmetry from the two ends up and down of fixed head 22 respectively.Upper arm 24 is curved, its arm end 242 direction parallel with fixed head 22 of finally turning back downwards.The inboard of upper arm 24 forms the sliding way 244 that a main body is an arc.Underarm 26 is curved, its arm end 262 direction parallel with fixed head 22 of finally upwards turning back.The inboard of underarm 26 forms the glide path 264 that a main body is an arc.

Second rail 40 comprises a web 42, a upper arm 44 and a underarm 46.Web 42 comprises the protuberance 424 of vertical both ends 422 and a biasing, and protuberance 424 is parallel to both ends 422 and is connected between the both ends 422 by two inclined planes 426.Upper arm 44 and underarm 46 be respectively from the bending of the two ends of web 42, because of upper arm 44 and underarm 46 are symmetrical structure, is that example is described its concrete shape with underarm 46 only herein.Underarm 46 comprises that one first kink 462, one second kink 464 and are connected in the vertical portion 466 between two kinks 462,464.Vertical portion 466 is parallel to the end 422 of web 42, and and end 422 between spaced far less than protuberance 424 with respect to the offset or dish between the end 422.462 bendings of first kink are connected between end 422 and the vertical portion 466, first kink, 462 outer walls form one first slideway 468, on first slideway 468 on the glide path 264 of the radius of curvature of each point and first rail 20 radius of curvature of corresponding each point identical, when second rail 40 is contained in first rail 20, the glide path 264 of first rail 20 can be accommodated and fit in to first slideway 468 of second rail 40, so that glide path 264 supports first slideway 468 with the form that curved surface contacts, help strengthening the load-carrying ability of 20 pairs second rails 40 of first rail.When second rail 40 slided with respect to first rail 20, first slideway 468 slided along glide path 264.466 the other end is to the direction bending away from protuberance 424 from the vertical portion for second kink 464, and second kink 464 forms one second slideway 470 apart from protuberance 424 sidewalls far away.Upper arm 44 is a symmetrical structure with underarm 46, and it comprises one first kink 442, one second kink 444, a vertical portion 446, one first slideway 448 and one second slideway 450 with underarm 46 shape symmetries.Wherein, on first slideway 448 on the sliding way 244 of the radius of curvature of each point and first rail 20 radius of curvature of corresponding each point identical, when second rail 40 was contained in first rail 20, the sliding way 244 of first rail 20 is accommodated and fitted in to first slideway 448 of upper arm 44, and the two is the curved surface contact.

The 3rd rail 60 comprises a decorating plate 62, a upper arm 64 and a underarm 66, and decorating plate 62 is a vertical plate body, and upper arm 64 and underarm 66 are respectively from the symmetry bending of the two ends of decorating plate 62.Upper arm 64 comprises a kink 642, a flat part 644 and a free end 646, between the curved upper end that is connected in decorating plate 62 and flat part 644 of kink 642, flat part 644 extends to the direction under oblique from kink 642, free end 646 extends to turning back near the direction of kink 642 inboards and being parallel to flat part 644 from flat part 644, and free end 646 is bent to form a slideway 648 with the outer wall of flat part 644 junctions.On the slideway 648 on second slideway 450 of the radius of curvature of each point and second rail 40 radius of curvature of corresponding each point identical, when the 3rd rail 60 parts are accommodated second rail 40, second slideway 450 of second rail 20 is accommodated and fitted in to the slideway 648 of the 3rd rail 60, so that second slideway 450 with the form supporting skid rail 648 of curved surface contact, helps strengthening the enabling capabilities of 40 pairs the 3rd rails 60 of second rail.When the 3rd rail 60 slided with respect to second rail 40, slideway 648 slided along second slideway 450.Underarm 66 is a symmetrical structure with upper arm 64, and it comprises a kink 662, a flat part 664, a free end 666 and a slideway 668 with upper arm 64 shape symmetries.Wherein, on the slideway 668 on second slideway 470 of the radius of curvature of each point and second rail 40 radius of curvature of corresponding each point identical, when the 3rd rail 60 parts were accommodated second rail 40, second slideway 470 of second rail 20 is accommodated and fitted in to the slideway 668 of the 3rd rail 60, and the two is the curved surface contact.

During assembling, only need second rail 40 is inserted in first rail 20, its first kink 442,462 is contained in respectively in the upper arm 24 and underarm 26 of first rail 20, and two first slideways 448,468 contact with curved surface with the sliding way 244 of first rail 20 and glide path 264 respectively, and slide relatively.Form an installing space between the fixed head 22 of protuberance 424, two inclined planes 426 and first rail 20 of second rail 40, can be used for installing rail body positioner.The slideway 648,668 that the 3rd rail 60 is sheathed on second kink, 444,464, the three rails 60 of second rail 40 contacts with curved surface with second slideway 450,470 of second rail 40 respectively, and slides relatively.Between the decorating plate 62 of the 3rd rail 60 and the protuberance 424 of second rail 40 certain intervals is arranged, be used to install rail body positioner.

Upper arm 24, underarm 26 and the fixed head 22 formed receiving spaces of first rail 20 are stretched out in second kink, 444,464 bendings of second rail 40 of slide rail of the present invention, be contained in upper arm 64, underarm 66 and the decorating plate 62 formed receiving spaces of the 3rd rail 60 last part, but thereby make the protuberance 424 opposite end portions 422 of second rail 40 that bigger offset or dish be arranged, all leave bigger installing space between the fixed head 22 of the protuberance 424 and first rail 20 and the decorating plate 62 of the 3rd rail 60, so that the positioner of each rail body is installed.

Certainly, the slideway of each rail body of the present invention can be other shapes equally, and as plane slideway etc., the contact of slideway also can be other ways of contact between adjacent rail body, less than the radius of curvature of accommodating slideway, and the contact of two slideways that form is line face contact etc. as the radius of curvature of being accommodated slideway.As long as the part of the upper arm 44 of second rail 40 and underarm 46 is stretched out upper arm 24, underarm 26 and the fixed head 22 formed receiving spaces of first rail 20 respectively, and be connected with the 3rd rail 60 with extension, to guarantee between first rail 20 and second rail 40, to leave bigger installing space between second rail 40 and the 3rd rail 60 and get final product.

In addition, be to reduce relative frictional force of sliding between the different rail bodies, can in the slideway of rail body, add the smoothness of moderate lubrication oil or increase slideway, to make things convenient for the relative slip between the rail body.Also can install the ball rack that comprises plurality of balls between first rail 20 and second rail 40, with of the slip of auxiliary second rail 40 with respect to first rail 20.

Claims

1. slide rail, comprise one first rail, one second rail and one the 3rd rail, described three rails comprise two side arms respectively, described first rail comprises a fixed head, the two side arms of described first rail is respectively from the bending of the two ends of described fixed head, described second rail is contained in the two side arms and the formed receiving space of fixed head of described first rail, it is characterized in that: the two side arms of described second rail is partly stretched out the two side arms and the formed receiving space of fixed head of described first rail respectively, and is connected with the two side arms of the 3rd rail respectively with extension.

2. slide rail as claimed in claim 1 is characterized in that: described the 3rd rail comprises a decorating plate, and the extension of the two side arms of described second rail is contained in the two side arms and the formed receiving space of decorating plate of described the 3rd rail

3. slide rail as claimed in claim 2, it is characterized in that: described second rail also comprises a web, the two side arms of described second rail is bent to form one first kink respectively from the two ends of described web, the two side arms inboard of described first rail forms a slideway respectively, first kink of described second rail is contained in the corresponding slideway of described first rail respectively, and can be in wherein sliding.

4. slide rail as claimed in claim 3, it is characterized in that: the extension of the two side arms of described second rail is respectively one second kink that the end of described side arm outwards is bent to form, the two side arms of described the 3rd rail is bent to form a slideway respectively, the slideway of described the 3rd rail is contained in respectively in correspondence second kink of described second rail, and can be in wherein sliding.

5. slide rail as claimed in claim 4 is characterized in that: the two side arms of described second rail also comprises a vertical portion respectively, and first kink of each side arm of described second rail is connected with described vertical portion with second kink.

6. slide rail as claimed in claim 4, it is characterized in that: the two side arms of described the 3rd rail comprises a kink, a flat part and a free end respectively, the two ends of the decorating plate that is connected in described the 3rd rail that described kink is curved respectively, described flat part is the oblique extension of self-corresponding kink respectively, the self-corresponding respectively flat part of described free end is to turning back near the direction of corresponding kink inboard and being parallel to described flat part, and the slideway of described the 3rd rail is respectively the 3rd rail outer wall bending of described free end and described flat part junction and forms.

7. slide rail as claimed in claim 3 is characterized in that: the web of described second rail comprises two vertical ends and Parallel offset in a protuberance at both ends, and described protuberance is connected between the described both ends by two inclined planes.