CN1631295A - Slide rail positioning device - Google Patents

Abstract

The invention relates to a slide rail positioning device, which comprises a positioning group consisting of a fixed sheet and a brake sheet arranged at the rear part of a middle rail, wherein one end of the fixed sheet is fixed on the middle rail, a hollow groove area is arranged on the middle rail, the fixed sheet can penetrate through the surface side of an outer rail, the side of the fixed sheet is pivoted with the brake sheet, a clamping part is formed at the lower edge of the end side, a convex body is arranged on the outer rail, the brake sheet extends from the two sides of one half part of the brake sheet to be connected with the fixed sheet in a joint mode, bent compression parts are formed at the two sides of the other half part of the brake sheet, a pressing surface is formed between the compression parts at the two sides, and the brake sheet is in an inclined state. When the middle rail is pulled out, the fixed piece is pressed against the convex body of the outer rail to prevent the middle rail from shrinking inwards, and the retracted inner rail is used for pushing against the pressed part of the obliquely warped detent piece or the pressing surface of the detent piece by hand, so that the pivot piece on the opposite side can be tilted to shift and separate from the convex body by the connected pressing part, and the detent state of the middle rail and the outer rail is released.

Description

Slide rail positioning device

(1) Technical field

The invention relates to a slide rail positioning device.

(2) Background technology

For example, the steel ball slide rail used for the horizontal sliding of drawers is divided into two-section type and three-section type according to the number of telescopic sections. Since the development of this type of slide rail, there are quite a variety of mechanism designs that meet the functional requirements. Many patent requests have been filed, and the applicant has invested a lot of effort in this area. Among them, the design of the locking position of the related slide rail is a patented product like US Patent No. 6,585,335 "Locking structure of the rear section of the slide rail" , its main functional requirement is to enable the middle rail to be positioned after being pulled out relative to the outer rail, to prevent inward shrinkage, and to release the positioning state of the middle rail at the same time when the inner rail is retracted, so that the inner rail and the middle rail can be retracted together. Rail, in order to achieve this functionality, its design is to combine a positioning piece and a movable plate with a positioning component at one end of the middle rail. The positioning piece is provided with more than one locking hole; and the movable plate is slightly ㄑ-shaped, which can be movably placed between the positioning piece and the middle rail, mainly so that one end of the movable plate is supported by more than one piece of lug Snap into the card hole on the positioning piece to limit the position of the movable plate, and the other end of the movable plate forms an obliquely protruding fin, which can be crimped by the inner rail, so that the middle rail is pulled out relative to the outer rail to position The positioning foot of the sheet is snapped into the card hole on the outer rail to position, and when the inner rail is received, when the inner rail is crimped with the flap of the movable plate, the movable plate is tilted up, and the tab end can be pushed up. Push the positioning piece, so that the positioning foot of the positioning piece can break away from the clamping hole of the outer rail, and release its positioning state.

However, the positioning design of the above-mentioned slide rails to prevent the retraction of the middle rail, the movable plate is a movable assembly kit, which is easy to fall off or shift due to impact, and the movable plate is installed in the positioning piece, and the exposed part is very small, which can only be used for The push of the inner rail is not conducive to manual pressing, and this manual control requirement is mainly to prevent the drawer and the inner rail from being pulled out, and the extended middle rail will form a very long protrusion, which will hinder human activities. Or even cause collision damage, so it is necessary to manually release the anti-shrinkage positioning state of the middle rail, so as to put the middle rail into the outer rail, so as to avoid the inconvenience caused by the protrusion of the middle rail.

(3) Contents of the invention

The purpose of the present invention is to provide a newly designed slide rail positioning device, which can temporarily position the two-section rail body that is relatively slippery after the slide rail is deployed, and can automatically release its positioning state by pushing in another rail body or Manual release can be applied to the positioning state.

And the present invention mainly is provided with a pivotally connected positioning group at the rear part of the middle rail, and the positioning group is composed of a fixed piece with better elastic force and a swingable catch piece, wherein, one end of the fixed piece is fixed on On the middle rail, a hollow groove area is set on the middle rail relative to the fixed piece, so that one side of the fixed piece can extend through the hollow groove area to the surface side of the outer rail. It is pivotally connected, and a locking part is formed on the lower edge of the end side, and a convex body is provided on the outer rail. Bending pressure parts are formed on both sides of the other half, and a pressing surface is formed between the pressure parts on both sides, and the detent piece is connected to the fixed piece in a joint form to be in an inclined state, and the lower edge is against the middle rail In this way, the middle rail is pulled out relative to the outer rail, that is, the clamping part of the fixed piece in the elastically depressed state can resist the convex body on the outer rail to prevent the inner rail from shrinking, and use the received inner rail to The rail edge pushes against the pressure-receiving part of the catch piece, or you can directly press the pressing surface of the catch piece with your hand, so that the side of the pivot piece is tilted, so that the locking part of the fixed piece is shifted away from the convex body of the outer rail, And then remove its stuck state.

In order to further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

(4) Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is a partially assembled view of the present invention.

Fig. 3 is a schematic diagram of the stretched state of the present invention.

Fig. 4 is a schematic diagram (1) of the folding and unlocking action of the present invention.

Fig. 5 is a schematic diagram (2) of the folding and unlocking action of the present invention.

Fig. 6 is a schematic diagram (3) of the folding and unlocking action of the present invention.

Fig. 7 is a schematic diagram of the structure of the present invention with other components.

Fig. 8 is an assembled view of the matching components of the present invention.

Fig. 9 is a variant embodiment of the joint connection of the positioning group of the present invention (1)

Fig. 10 is the variation embodiment (2) of the joint connection of the positioning group of the present invention

Fig. 11 is a variant embodiment of the detent of the present invention.

(5) specific implementation

Referring first to Figures 1 and 2, the slide rail positioning device of the present invention can be used in a three-section slide rail to implement a basic structure that is the same as that of conventional products, and is between the inner rail 1 and the middle rail 2, and the middle rail 2 Between the outer rail 3 and the outer rail 3 are respectively provided sliding aids 4 and 5 to facilitate sliding, and the inner rail 1 and the middle rail 2, and the middle rail 2 and the outer rail 3 can relatively limit the pulling distance, but the pull-out stop The structure is not a feature of the present invention, so this part will not be illustrated and described in detail, and the partially disclosed structure in the accompanying drawings is not the only collocation structure of the present invention, and should not limit the protection scope of the invention patent of this application. The design structure of the present invention will be described in detail below.

A positioning group 6 is arranged at the rear of the middle rail 2, and the positioning group 6 is formed by connecting a fixed piece 61 and a detent piece 62 in a joint form, wherein the fixed piece 61 is formed by bending an elastic plate, One end is fixed on the middle rail 2, and the method can be that the riveting column 21 of the middle rail 2 is directly pierced through the fixing plate 61 and a perforation 611 is riveted. The sliding piece 4 resists the positioning, and the middle rail 2 is provided with a hollow groove area 22 relative to the fixed piece 6, so that one side of the fixed piece 61 can pass through the hollow groove area 22 and extend obliquely to the inner surface side of the outer rail 3 , and the two sides of the fixed piece 61 are bent to form the receiving plate 613 to be pivotally connected with the stop piece 62, and a locking part 614 is formed on the lower edge of the end side, and is fitted on the outer rail 3 to provide a locking part 614 against the single oblique convex body 31; in addition, the stop piece 62 cross-section is set to be ㄇ-shaped, which is opposite to the half of the fixed piece 61 and extends on both sides of the pivot piece 621 to overlap the receiving plate 613 and can be inserted The riveting pin 63 is pivotally connected, and the two sides of the other half of the catch piece 62 form a bent pressure receiving portion 622, and a pressing surface 623 is formed between the two pressure receiving portions 622, and the catch piece 62 is pivotally connected to the The fixing piece 61 is in an inclined state, and the lower edge of one side of the pressing surface 623 abuts against the arched surface of the middle rail 2 to form a sliding fulcrum for a lever to swing.

With the above-mentioned design, after the three-section slide rail is pulled out, as shown in Figure 3, when the inner rail 1 and the middle rail 2 are pulled out relative to the outer rail 3, the middle rail 2 extends out of the outer rail 3 to its After the end point of stretching, the fixed piece 61 that is elastically pressed down toward the inner surface of the outer rail 3 is pressed against the convex body 31 on the outer rail 3 with its locking portion 614, so that the middle rail 2 cannot be pushed back temporarily, preventing its retracted.

When the inner rail 1 is retracted and pushed into the middle rail 2 again, as shown in Figures 4 and 5, the sliding inner rail 1 will push the edge of the edge rail body 11 against the pressure receiving part of the latch 62 in the tilted state. 622, and the lower edge of the pressing surface 623 leans against the arched surface of the middle rail 2 as a fulcrum, so that the detent piece 62 can be levered to swing accordingly, so that the side of the pivot piece 621 is tilted up and the fixed piece 61 is pivoted. The joints are displaced at the same time, so that the locking part 614 rises away from the convex body 31 of the outer rail 3, and the anti-shrinkage positioning state of the middle rail 2 and the outer rail 3 is released. Finally, as shown in Figure 6, the inner Rail 1, middle rail 2 are received in outer rail 3 together.

In addition, the action of the above-mentioned detent piece 62 can not only be pushed by the inner rail 1, but also the pressing surface 623 with a larger area of the detent piece 62 can be directly pressed with fingers, so that the side of the pivot piece 621 can be tilted up, so as to The engaging portion 614 of the joint fixing piece 61 is displaced away from the convex body 31 of the outer rail 3 , and the locking state is released.

In addition, considering the sliding state of the inner rail 1 relative to the middle rail 2 by means of the slider 4, once the distance is longer, the inner rail 1 will slightly warp, except that there is some error in the straightness of the component itself. It will also exist, so over time, the pushing distance of the edge rail body 11 of the inner rail 1 relative to the pressing part 622 of the detent piece 62 will have a certain change, that is, the rail end of the inner rail 1 may be warped. However, it affects the normal interlocking distance of pushing the detent piece 62. In order to solve the problems that may arise after this day, and to make the precision of product operation better, the method provided in the present invention is shown in Figures 7 and 8. An anti-warping sliding seat 7 is embedded in the inner concave rail surface of the middle rail 2, and it cooperates with the design of the above-mentioned fixing piece 61, so that one side is placed under the fixing piece 61, and it is set as a central hollow frame shape, It is suitable for the accommodation of the positioning group 6, and a slot 23 is provided on the middle rail 2 for its frame-shaped wider side to be embedded, whereby the edge rail body 11 of the inner rail 1 can be guided through and slid on the anti-warping Inside the sliding seat 7, to ensure the linear sliding of the inner rail 1, and avoid the adverse effects of the rail end warping.

In addition, the above-mentioned pivotal connection between the locking piece 62, the pivot piece 621 and the fixing piece 61 receiving plate 613 through the rivet pin 63 can also choose a more simplified component and change the appropriate position. One of the ways is shown in Figure 9. As shown, the protruding shaft body 615 can be directly punched out from the receiving plate 613, so as to pass through the pivot hole 624 of the pivot piece 621. In addition, the pivot hole 624 can be in the form of a C-shaped hole with an opening to facilitate assembly; One embodiment, as shown in FIG. 10 , extends the end edge and both sides of the receiving plate 613 on the fixed piece 61 to form a passing groove 617 with an opening 616 by proper bending, stamping and cutting, and the The inner ends of the pivot pieces 621 on both sides of the moving piece 62 form a locking piece 625, and the locking piece 625 can be forced through the above-mentioned opening 616 and inserted into the through groove 617. The piece 62 lever swings and pushes against the fixed piece 61 to move up with its locking piece 625 .

In addition, as shown in Figure 11, the lower ends of the pressure-receiving parts 622 on both sides of the above-mentioned stop piece 62 can be set as a skid-shaped end 626, whereby the skid-shaped end 626 can be supported against the valleys on both sides of the arched surface of the middle rail 2 surface, then it can also become the sliding fulcrum of the lever swing of the detent piece 62, instead of using the arched surface of the lower edge of the pressing surface 623 against the middle rail 2.

Claims (9)

1. A slide rail positioning device, comprising an inner rail, a middle rail, an outer rail and a sliding aid, they constitute a three-section rail body that can slide relatively, and a positioning group is arranged at the rear of the middle rail, and it is characterized in that: The positioning group is composed of a fixed piece and a detent piece, wherein the fixed piece is formed by bending an elastic plate, one end is fixed on the middle rail, and the middle rail is provided with a hollow groove area opposite to the fixed piece. One side of the fixed piece extends obliquely to the inner surface of the outer rail through the hollow groove area, and the two sides of the fixed piece are bent to form a receiving plate for joint connection with the stop piece, and formed on the lower edge of the end side The locking part, and a single oblique convex body that is fitted on the outer rail for the locking part to be offset, and the cross section of the catch piece is ㄇ-shaped, and the half part facing the fixed piece is connected to the extending pivot piece on both sides On the receiving plate, the two sides of the other half of the catch piece are formed with bent pressure-receiving parts, and a pressing surface is formed between the two sides of the pressure-receiving parts, and the catch piece is pivotally connected to the fixed piece in an inclined state, and the following The edge is against the middle rail to form a fulcrum for the swing of the lever. 2. The slide rail positioning device according to claim 1, characterized in that: one end of the fixing piece is provided with a perforation, and the middle rail is formed with a riveting column to be riveted with a piercing knot. 3. The sliding rail positioning device according to claim 1, characterized in that: one end of the fixing piece fixed on the middle rail is bent into a baffle plate on both sides, so as to be resisted and positioned by the sliding aid. 4. The sliding rail positioning device according to claim 1, characterized in that: an anti-warping sliding seat is embedded in the inner concave rail surface of the middle rail, one side of which can be placed under the fixed piece, and a Form a frame shape with a hollow center for the above-mentioned positioning group to accommodate, and a slot hole is provided on the middle rail for the wider side of the frame shape to be embedded, so that the edge rail body of the inner rail can be guided through and slides It is placed in the anti-warping seat to ensure the linear sliding of the inner rail. 5 . The sliding rail positioning device according to claim 1 , wherein the pivot piece of the locking piece is pivotally connected with the receiving plate of the fixing piece through a riveting pin. 5 . 6 . The slide rail positioning device according to claim 1 , wherein the receiving plate of the fixing piece is punched into a protruding shaft body, so as to pass through the pivot hole of the locking piece pivot piece. 7 . 7 . The slide rail positioning device according to claim 6 , wherein the pivot hole of the pivot piece can be a C-shaped hole with an opening. 8. The slide rail positioning device according to claim 1, characterized in that: the end edge and the two sides of the extending receiving plate of the fixing piece are properly bent, stamped and cut to form a through groove with an opening, and The inner ends of the pivot pieces on both sides of the detent piece are formed with a locking piece, and the locking piece can be inserted between the connecting grooves. 9. The slide rail positioning device according to claim 1, characterized in that: the lower ends of the pressure-receiving parts on both sides of the catch piece are set as a skid-shaped end, so that the skid-shaped end is supported on both sides of the arched surface of the middle rail valley surface.

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