TWM515328U - Synchronized sliding device for sliding rails - Google Patents

Description

Synchronous sliding device for slide rail

The present invention relates to a slide rail which comprises an inner rail and an outer rail and can be relatively moved and retracted, in particular, a structure in which the slide rail can forcibly synchronously move the inner rail and the outer rail when being stretched, and can be used for a seat and a drawer. The items are provided to provide front and rear telescopic movement, which has the effects of versatility, convenience and durability.

The general drawer or server will be equipped with slide rails on both sides of the drawer cabinet or cabinet for the user to pull the drawer cabinet effortlessly and conveniently, or enable the staff to conveniently pull the server from the cabinet when the server needs to be repaired. The server is pushed into the cabinet after the repair is completed; some seats (such as car seats) with front and rear movement functions to adjust the position also need to set the slide rails.

Common slide rails include inner rail and outer rail, and even a middle rail is provided between the inner rail and the outer rail to increase the movable stroke of the slide rail; the inner rail is used for the drawer cabinet, the server body or the seat. The two sides of the body are combined, and the outer rail is fixed on the outer cabinet of the drawer, the cabinet or the two sides of the outer frame of the seat; the inner and outer rails are slidingly matched, so that the inner rail can slide back and forth relatively along the length direction of the outer rail.

The telescopic rail synchronization structure disclosed in Taiwan Patent Publication No. 3,916,81 is an improved structure of a telescopic rail applied to a general drawer, a filing cabinet and a computer desk keyboard drawer, and has an inner chute, a middle chute and an outer slot; The outer groove is formed into a predetermined groove shape for accommodating the middle sliding groove to move therein, and the middle sliding groove also has a predetermined groove shape for accommodating the inner sliding groove; wherein the two edges of the middle sliding groove are specific A transmission mechanism is disposed at the position, and is positioned to be rotatable on the middle sliding slot The driving mechanism respectively contacts the extending flanges of the outer slot and the inner sliding slot. When the telescopic rail is telescoped, the synchronous sliding movement of the middle sliding slot and the inner sliding slot can be generated by the contact transmission of the transmission mechanism, but At the same time, it is in place to avoid the phenomenon of multiple impacts when the telescopic rail is operated.

Taiwan Patent Publication No. I288212 discloses a roller retainer that can be used for synchronous operation of a slide rail. Its main purpose is to reduce the frictional resistance and noise of the roller to improve the efficiency of the transmission; the structure is based on two flexible A plurality of spaced apart spacers are formed between the long chain links, and a space for accommodating the rollers is formed between the partitions, and the partition system is composed of two to several holding blocks integrally formed, and two sides of each holding block Each of the holding portions and the extending plane formed with a cylindrical surface, the same side holding portion and the extending plane of the plurality of holding blocks of the same partition are vertically opposed, so that the opposite sides of the adjacent partitions have a vertical direction The number retaining portion and the extending plane can restrict the roller from falling off by the retaining portion, and reduce the area of contact with the roller by the extending plane to reduce the frictional area of the roller.

Taiwan New Patent Publication No. M335587 discloses a synchronous connector for a roller that can be used for a slide rail and a mold thereof, the structure comprising two connecting bars, a plurality of first retaining members and a plurality of second retaining members, the first retaining members And the second holding members are respectively disposed on the two connecting strips, and the two holding sides of the first holding member and the second holding members are respectively formed with a holding surface, and the opposite first holding members are respectively formed And a space between the second holding member, the space can store lubricating oil, and the roller is arranged to be smoothly rolled in the synchronous connector, and the mold is used to make the synchronous connector.

The purpose of the present invention is to provide a slide-synchronous slide device that is more stable in mechanism, more durable, and more convenient to use than the slide rail structure of the foregoing prior art.

The synchronous sliding device of the slide rail provided by the present invention is characterized in that an inner rail is combined in an outer rail, and a roller synchronous seat is arranged between the lower surface of the inner rail and the bottom of the outer rail, and the roller synchronizes the seat. The plurality of rollers are arranged such that the upper and lower ends of the roller respectively contact the lower surface of the inner rail and the bottom of the outer rail and are applied with a pre-pressure; respectively, between the opposite sides of the inner rail and the opposite sides of the outer rail a rod and a plurality of balls, and the balls are located between the end of the rod and the restriction portion provided on the inner rail, and the pre-pressure is applied between the balls and the inner and outer rails in a vertical direction; thereby When the inner rail slides relative to the outer rail, the balls and the rollers are synchronously rolled, so that the inner rail slides more smoothly with respect to the outer rail of the outer rail, and the strength and durability are better.

More specifically, the synchronous sliding device of the slide rail provided by the present invention includes a outer rail, an inner rail, a roller synchronous seat, two rods and a plurality of balls; wherein: the outer rail has a bottom, The opposite sides of the bottom portion extend vertically upwardly to the outer side walls parallel to each other, and the upper ends of the two outer side walls respectively extend horizontally to a first flange, the bottom portion, the outer side walls and the first side An inner space is formed between the flanges; the inner rail has a rail surface, and the opposite sides of the rail surface respectively extend vertically downward to form a first vertical wall parallel to each other, and the lower ends of the first vertical walls respectively a second flange is horizontally extended in the direction of the exit, and the end edges of the second flanges extend vertically downward to form a second vertical wall parallel to each other, and the opposite sides of the inner rail are respectively provided with two separated distances from each other. a second restricting portion, the inner rail is combined with the inner space of the outer rail, so that the first flange and the second flange correspond to each other in a vertical direction; the roller synchronous seat has a base, and a plurality of Activities are located at a roller that is freely rotatable on the base, the roller is synchronously seated between the outer rail and the inner rail, such that the upper and lower ends of the roller respectively contact the lower surface of the rail surface and the upper surface of the bottom; the two rods, Arranging respectively between two second restricting portions on each side of opposite sides of the inner rail; a plurality of balls respectively disposed at ends of the rods on each side of opposite sides of the inner rail Between the restrictions; After the foregoing components are combined, a pre-pressure is applied between the balls and the first and second flanges, and between the roller and the lower surface of the rail surface, and between the roller and the bottom.

Based on the fact that the base of the roller synchronizer has a more stable effect, the present invention can further provide a plurality of ribs on the lower surface of the base, the ribs simultaneously contacting the bottom of the outer rail with the lower end of the roller.

Preferably, the plurality of ribs provided on the lower surface of the base of the roller synchronizer are parallel to the longitudinal direction of the base.

Preferably, the present invention further provides two first restricting portions spaced apart from each other on opposite sides of the inner space of the outer rail, and the first restricting portions are from the first flange to the inner rail. The space direction is stamped and formed.

Preferably, the second restricting portions provided on the inner rail are press-formed and protruded from the joint between the second flange of the inner rail and the first side wall.

In order to make the roller provided on the roller synchronous seat roll more stably, the present invention preferably further includes a plurality of third restricting portions for restricting the roller on the lower surface of the rail surface of the inner rail.

Preferably, the third restriction portion provided on the inner rail is press-formed from the rail surface to protrude the lower surface of the rail surface.

1‧‧‧ outer rail

10‧‧‧ inner space

11‧‧‧ bottom

12‧‧‧Outer side wall

13‧‧‧First flange

14‧‧‧First Restriction Department

2‧‧‧ Inner rail

21‧‧‧ Tracks

22‧‧‧First vertical wall

23‧‧‧second flange

24‧‧‧ second vertical wall

25‧‧‧ Second Restriction Department

26‧‧‧ Third Restriction Department

3‧‧‧Roller sync stand

31‧‧‧Base

311‧‧‧ wheel holes

32‧‧‧Roller

33‧‧‧ ribs

4‧‧‧ rods

5‧‧‧ balls

1 is a perspective view showing the overall structural form of the present sliding device; FIG. 2 is an exploded perspective view showing the main component combination relationship of the present creation; FIG. 3 is a plan sectional view taken along the length direction of FIG. 1, and FIG. A perspective view of the structure of the roller synchronization seat; FIG. 5A is a plan view showing the structure of the roller synchronization seat of the present invention; 5B is a plan sectional view taken along line 5B-5B of FIG. 5A; and FIG. 5C is a plan sectional view taken along line 5C-5C of FIG. 5A.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Referring first to FIG. 1, the synchronous sliding device of the slide rail provided by the present invention is a slide rail which can be used for any position, such as a seat, a drawer, a servo cabinet, etc., which can be moved forward and backward to adjust the position. The slide rail comprises an outer rail 1 and an inner rail 2, and the inner rail 2 is combined in the outer rail 1; wherein the inner rail 2 is used for the drawer cabinet, the server body or the seat body (not shown) The two sides are combined, and the outer rail 1 is fixed on both sides of the drawer outer cabinet, the server cabinet or the outer frame of the seat (not shown); the inner rail 2 and the outer rail 1 are slidingly matched, so that the inner rail can be externally The length of the rail slides back and forth relatively.

Referring to FIG. 2, the slide rail of the present invention includes a roller synchronization seat 3, two rod members 4 and a plurality of balls 5 in addition to the outer rail 1 and the inner rail 2; at the same time, as shown in FIG. The preferred embodiment of the rail 1 is formed by bending a metal sheet to have a bottom portion 11. The opposite sides of the bottom portion 11 extend vertically upward to form outer side walls 12 parallel to each other, and the two outer side walls 12 A first flange 13 extends horizontally from the upper end in a direction facing each other, and an inner space 10 is formed between the bottom portion 11, the outer side wall 12 and the first flanges 13.

As shown in FIG. 2 and FIG. 3, the preferred embodiment of the inner rail 2 of the present invention is formed by bending a metal sheet to have a rail surface 21, and the opposite sides of the rail surface 21 are respectively downward. a first vertical wall 22 extending perpendicularly to each other, the lower ends of the first vertical walls 22 extending horizontally outwardly from the second flange 23, and the ends of the second flanges 23 are vertically downward. Extending into a second vertical wall 24 parallel to each other; preferably, in a subsequent processing process, opposite sides of the inner rail 2 are respectively provided Two second restricting portions 25 separated from each other by a distance; for example, the joint of the second flange 23 of the inner rail 2 and the first side wall 22 may be press-formed in the outward direction to form a protruding portion The second restricting portion 25 is further press-formed from the rail surface 21 of the inner rail 2 by a press forming technique to form a plurality of third restricting portions 26 that protrude the lower surface of the rail surface 21; preferably, the third restricting portions There are two, which are separated from each other by a distance in the longitudinal direction of the inner rail 2.

The inner rail 2 is for combining in the inner space 10 of the outer rail 1, and at the same time, the first flanges 13 of the outer rail 1 and the second flanges 23 of the inner rail 2 correspond to each other in the vertical direction ( As shown in FIG. 3, it is thereby ensured that the inner rail 2 and the outer rail 1 can be relatively moved in the longitudinal direction.

As shown in FIG. 2 and FIG. 3, the present invention further provides a roller synchronization seat 3 in the inner space 10 of the outer rail 1 below the inner rail 2. The roller synchronization seat 3 is used for movably mounting a roller 32, thereby making the roller 32 The upper and lower ends respectively contact the lower surface of the rail surface 21 of the inner rail 2 and the upper surface of the bottom portion 11 of the outer rail 1.

As shown in FIG. 4 and FIG. 5A to FIG. 5C , the preferred embodiment of the roller synchronization base 3 provided by the present invention can be formed into a base 31 by any suitable material, and the base 31 is provided with two disposed at opposite ends. The wheel hole 311 and the wheel hole 311 are formed into a rectangular tapered hole having a relatively wide upper end and a relatively narrow lower end, and the diameter of the lower end of the wheel hole 311 is smaller than the diameter of the roller 32, so that a roller 32 is placed in the wheel. After the hole 311, a small portion of the lower end of the roller 32 can protrude below the wheel hole 311 but does not fall out of the wheel hole 311, and most of the upper end of the roller 32 protrudes above the wheel hole 311 (as shown in FIG. 5B); the roller 32 is The roller 32 is freely placed in the wheel hole 311, so that the roller 32 can freely roll in the wheel hole 311, but there is a little friction between the roller 32 and the inner wall surface of the wheel hole 311, but the smooth rolling is not affected. . Further, the lower surface of the base 31 is preferably provided with a plurality of ribs 33; more preferably, the ribs 33 are formed in an elongated shape parallel to the longitudinal direction of the base 31, and the ribs 33 protrude below the base 31. The height of the surface is almost equal to the distance below the lower end of the roller 32 protruding from the wheel hole 311; thereby, the roller synchronizer 3 is mounted below the inner rail 2 and the inner rail 2 is mounted After the inner space 10 of the outer rail 1, the radial direction of each of the rollers 32 is blocked by the protruding third restricting portions 26 to prevent the roller 32 from coming off the base 31, and the upper end of the roller 32 is in contact with the rail of the inner rail 2. The lower surface of the face 21, while the lower end of the roller 32 contacts the upper surface of the bottom portion 11 of the outer rail 1; at the same time, the rib 33 below the base 31 also contacts the upper surface of the bottom portion 11.

As shown in FIG. 2 and FIG. 3, the two-bar member 4 and the plurality of balls 5 of the present invention are cooperatively combined with the constituent elements between the inner rail 2 and the outer rail 1, wherein the rod member 4 is preferably made of a metal rod. For a suitable length, the length is added to the diameter of the two balls 5 to be slightly smaller than the distance between the two second restricting portions 25 provided on the side of the inner rail 2, and slightly smaller than the two portions provided on the side of the outer rail 1 a distance between the restricting portions 14; the present invention is provided with a rod member 4 between the two second restricting portions 25 on each side of the opposite sides of the inner rail 2, and two of the outer rails 1 Between the restricting portions 14, two balls 5 are respectively placed between the ends of each of the rods 4 and the first and second restricting portions 14, 25, and the rods 4 and the first and second restricting portions are respectively 14, 25 restricts the ball 5 to a specific position but can freely roll at that position.

In the present invention, while the roller synchronizer 3, the rods 4 and the balls 5 are combined between the inner rail 2 and the outer rail 1, the inner rail 2 is appropriately applied with pressure to the outer rail 1, and the roller 32 and the balls 5 are applied. Both are accommodated between the inner rail 2 and the outer rail 1 and then release the inner rail 2 to elastically recover the inner rail 2, and further between the balls 5 and the first and second flanges 13, 23, and the rollers 32 and A pressure is applied between the lower surface of the rail surface 21 and the roller 31 and the bottom portion 11, so that a tighter fit is formed between the inner rail 2 and the outer rail 1, and when the inner rail 2 slides relative to the outer rail 1, Since the balls 5 are surely in contact with the respective first flanges 13 and the second flanges 23, and the rollers 32 are surely in contact with the lower surface of the rail surface 21 and the upper surface of the bottom portion 11, the rollers 32 and the balls are forced. 5 synchronous rolling, so that the relative sliding of the inner rail 2 and the outer rail 1 is very stable, does not shake, and because the cooperation of its components is very firm and strong, the strength and durability are further improved, and the service life is longer.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any form of limitation on the creation, so that any modification or alteration of the creation made in the same creative spirit is provided. , should still be included in the scope of protection of this creative intent.

1‧‧‧ outer rail

11‧‧‧ bottom

12‧‧‧Outer side wall

13‧‧‧First flange

14‧‧‧First Restriction Department

2‧‧‧ Inner rail

21‧‧‧ Tracks

22‧‧‧First vertical wall

23‧‧‧second flange

24‧‧‧ second vertical wall

25‧‧‧ Second Restriction Department

26‧‧‧ Third Restriction Department

3‧‧‧Roller sync stand

31‧‧‧Base

32‧‧‧Roller

33‧‧‧ ribs

5‧‧‧ balls

Claims (7)

A synchronous sliding device for a slide rail comprises: an outer rail having a bottom portion, wherein opposite sides of the bottom portion respectively extend vertically upward to form outer side walls parallel to each other, and upper ends of the two outer side walls are horizontally facing each other Extending a first flange, the bottom portion, the outer side walls and the first flanges form an inner space; an inner rail has a rail surface, and opposite sides of the rail surface extend vertically downward respectively a first vertical wall parallel to each other, the lower ends of the first vertical walls respectively extending a second flange horizontally away from each other, and the end edges of the second flanges extend vertically downward to be parallel to each other a second vertical wall, the opposite sides of the inner rail are respectively provided with two second restricting portions separated from each other by a distance, the inner rail is combined with the inner space of the outer rail, so that the first flange and the first portion The two flanges correspond to each other in the vertical direction; a roller synchronous seat has a base, and a plurality of rollers movably disposed on the base to be freely rotatable, the roller is synchronously seated on the outer rail and the inner rail Between, make the scroll wheel up, The ends respectively contact the lower surface of the rail surface and the upper surface of the bottom portion; the two rod members are respectively disposed between the two second restricting portions on each side of the opposite sides of the inner rail; the plurality of balls are respectively disposed therein Between the ends of the rods on each side of the opposite sides of the rail and the restricting portion; after the combination of the foregoing elements, the balls and the first and second flanges, and the roller and the rail A pre-pressure is applied between the roller and the bottom under the face. The synchronous sliding device for a slide rail according to claim 1, wherein the lower surface of the base is provided with a plurality of ribs which simultaneously contact the bottom end of the outer rail with the lower end of the roller. The synchronous sliding device for a slide rail according to the second aspect of the invention, wherein the rib is parallel to the longitudinal direction of the base. The synchronous sliding device of the slide rail according to claim 1, wherein the opposite sides of the inner space of the outer rail are respectively provided with two first restricting portions separated from each other by a distance, and the first restricting portions The first flange is stamped and formed in the inner space direction of the outer rail to protrude. The synchronous sliding device for a slide rail according to claim 1, wherein the second restricting portions are press-formed and protruded outward from a joint between the second flange of the inner rail and the first side wall. The synchronous sliding device for a slide rail according to claim 1, wherein the lower surface of the rail surface is provided with a plurality of third restricting portions for restricting the roller. The synchronous sliding device for a slide rail according to claim 6, wherein the third restricting portion is press-formed from the rail surface to protrude the lower surface of the rail surface.