CN100515275C - Linkage positioning structure for stretching slide rail - Google Patents

Abstract

The invention relates to a linkage positioning structure for stretching a slide rail, which is implemented by matching a middle rail, an inner rail and an outer rail, the inner rail slides through the middle rail, the middle rail slides through the outer rail, and comprises a linkage piece, a positioning piece and an elastic component, wherein the linkage member and the positioning member are pivoted to the middle rail, the inner rail is provided with a first convex wall, the first convex wall is provided with a clamping part and an inclined surface, the outer rail is provided with a second convex wall, the second convex wall is provided with a stopping part and an inclined surface, the linkage member comprises a clamping end and a releasing end, the positioning member comprises a releasing end and a fixed end, the elastic component is fixed on the middle rail, the elastic component provides elastic force to resist the releasing end of the linkage piece and the fixed end of the positioning piece, the blocking end of the linkage piece corresponds to the blocking part of the first raised wall of the inner rail, the releasing end corresponds to the inclined surface of the second convex wall, the fixed end of the positioning element corresponds to the stopping part of the second convex wall of the outer rail, and the releasing end corresponds to the inclined surface of the first convex wall.

Description

The linkage positioning structure of slide rail stretching

technical field

The invention relates to a linkage positioning structure for stretching slide rails, in particular, the middle rail and the inner rail can be synchronously stretched from the outer rail, and after the middle rail is positioned relative to the outer rail, the inner rail and the middle rail can be released And the inner rail is stretched separately until it is fully stretched, and when it is folded, the inner rail and the middle rail can be sequentially retracted to the outer rail.

Background technique

The telescopic slide rails used in general drawers or similar hangers have a basic structure of two-stage rails consisting of inner and outer rails or three-stage rails consisting of inner, middle, and outer rails. Among them, the inner, middle, and outer rails are As far as the three-section slide rail is composed, when it is pulled out and deployed, a positioning structure is often designed at the end of the stroke to prevent the inner rail or middle rail from retracting into the outer rail by itself. In addition, if the inner and middle rails are sequentially The smoothness of pulling out from the outer rail, there will also be a device that can slide synchronously between the rails.

As far as the tensile positioning of the middle rail and the outer rail of the three-section slide rail is concerned, in the Taiwan patent of China, the previous cases that can be referred to have announcements No. 515494, No. 522806, No. 525455, No. M245728, and In U.S. patents, there are quite a few previous cases disclosing related prior art, such as U.S. Patent No. 3,133,768, No. 3,258,299, No. 3,371,968, No. 3,589,778, No. 3,650,578, No. 4,560,212, No. 4,998,828 5,417,490, 5,484,197, 5,551,775, 5,757,109, 5,871,265, 6,296,338 B1, 6,350,001 B1, 6,390,574 B2, 6,585,335 B2, 6,655,763B2, 6,763B2 , No. 6,705,689 B2, No. 6,749,276 B2, No. 6,805,418 B2, No. 6,899,408 B2 and US Patent Application Early Publication No. US 2003/0052580 A1, US 2003/0111942 A1, US 2004/0174103 A1, Cases such as US 2004/0239220 A1, US 2005/0116594 A1, US 2005/0180667 A1, etc.

In addition, in terms of technology that enables the middle rail to be pulled and displaced synchronously with the inner rail when the slide rail is pulled out, the design of the related linkage mechanism, in addition to the above-mentioned stretching positioning structures of several US patents, also has a similar synchronization In addition to functional technology, refer to Taiwan Patent Publication No. 533800 and No. 566128; and Taiwan Patent Publication No. 222321, No. 396781 and No. 558999 disclose another form of synchronous slide rail.

Based on the fact that various types of slide rails have different functional requirements according to different usage occasions, it is also inevitable for industrial competition to develop suitable products to meet the market. Therefore, it is more rational and economical to have component planning, operation and use, and manufacturing and processing. The present invention arises.

Contents of the invention

The purpose of the present invention is to provide a linkage positioning structure for slide rail stretching to achieve:

a. When the slide rail is stretched, the middle rail and the inner rail can be stretched and positioned synchronously, and when retracted, the inner rail and the middle rail can be put into the outer rail in sequence.

b. In the limited space of the slide rail, use the same place to set up different moving components to achieve the required synchronization and positioning of different functions. The design and arrangement of the components are more reasonable and economical, which not only saves costs, but also prolongs the service life.

The interlocking positioning structure of the sliding rail stretching of the present invention is based on the basic structure implemented by matching the middle rail, the inner rail and the outer rail: the inner rail wears and slides on the middle rail, the middle rail wears and slides on the outer rail, and It includes a linkage piece, a positioning piece and an elastic component, wherein the linkage piece and the positioning piece are juxtaposed and pivotally connected to the middle rail, and the inner rail is provided with a first convex wall, and the first convex wall is provided with a locking part, The outer rail is provided with a second convex wall, and the second convex wall is provided with a stopper. The linkage part includes a locking end and a release end, and the positioning part includes a release end and a fixed end. The elastic component is fixed on the middle rail, and The elastic component provides elastic force to resist the release end of the linkage and the fixed end of the positioning piece, the engagement end of the linkage corresponds to the locking portion of the first convex wall of the inner rail, and the fixed end of the positioning piece corresponds to The stop portion of the second convex wall of the outer rail, and the first convex wall can further include an inclined surface corresponding to the release end of the positioning member, and the second convex wall includes an inclined surface corresponding to the release end of the linkage member.

In order to further illustrate and verify 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.

Description of drawings

Fig. 1 is an exploded view of an embodiment of the present invention applied to a three-section slide rail.

Figure 2 is an exploded view of an embodiment of the present invention.

Fig. 3 is a fully collapsed schematic view (sectional view) of the embodiment of the present invention.

Fig. 4 is one of the schematic diagrams of the operation of the embodiment of the present invention (a state in which the inner rail is pulled out).

Fig. 5 is the second schematic diagram of the operation of the embodiment of the present invention (the state when the inner rail and the middle rail are released).

Fig. 6 is a partially enlarged schematic diagram of Fig. 5 (detailed diagram of A).

Fig. 7 is the third schematic diagram of the operation of the embodiment of the present invention (the middle rail and the outer rail are positioned relative to the stretching latch/the inner rail continues to stretch).

Fig. 8 is the fourth schematic diagram of the operation of the embodiment of the present invention (a state where the inner rail is fully stretched).

Fig. 9 is the fifth schematic diagram of the operation of the embodiment of the present invention (retracting operation mode/releasing the locking of the middle rail and the outer rail).

Fig. 10 is a schematic diagram of an equivalent variation example of a local structure of an embodiment of the present invention.

Detailed ways

The interlocking positioning structure of the stretching of the slide rail of the present invention can be implemented as shown in Figure 1. The present invention is implemented with the middle rail 4, the inner rail 5 and the outer rail 6, and the inner rail 5 slides through the middle rail 4. The middle rail 4 slides through the outer rail 6, and its detailed structure please refer to Fig. 2 and Fig. 3 at the same time, it also includes the linkage part 1, the positioning part 2 and the elastic component 3, wherein:

The linkage piece 1 and the positioning piece 2 are pivotally connected to the middle rail 4, which is connected to the middle section of the linkage piece 1 and the positioning piece 2 with a pivot pin 13, and the middle rail 4 is fixedly connected with the auxiliary rail 43, and the middle rail 4 Together with the auxiliary rail 43, there are grooves 41 and 431 to accommodate the link 1 and the positioning member 2, and the pivot pin 13 is passed through the semicircular pivot seat 42 on the middle rail 4, and the middle rail 4 and the auxiliary rail 4 are connected to each other. The rail 43 is clamped and pivotally connected to the middle rail 4, and the inner rail 5 is provided with a first convex wall 51, the first convex wall 51 is provided with a locking portion 511 and an inclined surface 512, and the outer rail 6 is provided with a second convex wall 61, The second convex wall 61 is provided with a stopper 611 and an inclined surface 612. The linkage member 1 includes a locking end 11 and a release end 12. The positioning member 2 includes an release end 21 and a fixed end 22. The elastic component 3 is fixed on the middle rail 4, and the first elastic leg 31 and the second elastic leg 32 of the elastic component 3 respectively provide elastic force to resist the unlocking end 12 of the linkage 1 and the fixed end 22 of the positioning member 2. In addition, The locking end 11 of the linkage 1 corresponds to the locking portion 511 of the first convex wall 51 of the inner rail 5, and its release end 12 corresponds to the slope 612 of the second convex wall 61 of the outer rail 6. The fixed end 22 corresponds to the blocking portion 611 of the second protrusion 61 , and the release end 21 thereof corresponds to the slope 512 of the first protrusion 51 .

The operating state of the design above is shown in Fig. 3 to Fig. 9, and as shown in Fig. 3, when the slide rail is fully retracted, the linkage member 1 abuts against the first convex end 11 of the inner rail 5 with its abutting end 11. The locking part 511 of the wall 51, and the release end 21 of the positioning part 2 is lifted by the first convex wall 51, as shown in Figure 4, when the inner rail 5 is pulled out, the middle rail 4 is simultaneously pushed up by the first convex wall 51 and the locking end 11 of the linkage 1 are brought out, stretched to a fixed point, as shown in Figure 5 and Figure 6, the release end 12 of the linkage 1 is held by the second convex wall 61 and The inclined surface 612 is lifted up, so that the locking end 11 of the linkage 1 is separated from the locking part 511 of the first convex wall 51, that is, the relative locking with the inner rail 5 is released, and as shown in Figure 7, the inner rail can be continuously pulled. Rail 5, then the first convex wall 51 leaves the release end 21 of the positioning piece 2, so that the fixed end 22 of the positioning piece 2 is pressed against by the second elastic foot 32 of the elastic component 3 and hooked to the stopper of the second convex wall 61. Afterwards, continue to stretch the state of the inner rail 5, as shown in FIG. Positioned relative to the outer rail 6, the inner rail 5 continues to be pulled out until fully stretched.

Again, when pushing into the inner rail 5 and closing it, as shown in Figure 9, the first convex wall 51 of the inner rail 5 and its inclined surface 512 push the release end 21 of the positioning piece 2, so that the fixing of the positioning piece 2 The end 22 breaks away from the stop portion 611 of the second convex wall 61 of the outer rail 6, and then retracts the middle rail 4, and finally returns to the fully folded state in FIG. 1 .

In addition, in terms of the technology that the elastic component 3 provides elastic force to the linking member 1 and the positioning member 2, another feasible example is shown in FIG. Make the acting end 31a of the first torsion spring 3a exert pressure on the lever arm with the release end 12 of the linkage member 1, and the acting end 31b of the second torsion spring 3b exert pressure on the lever with the fixed end 22 of the positioning member 2 arm.

Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and other modifications can be made without departing from the spirit of the present invention. Various equivalent changes and modifications, therefore, as long as the changes and modifications to the above embodiments are within the spirit of the present invention, they will all fall within the scope of the claims of the present invention.

Claims (5)

1. A linkage positioning structure for slide rail stretching, which is implemented with the middle rail, inner rail and outer rail, and the inner rail wears and slides on the middle rail, and the middle rail wears and slides on the outer rail, and includes a linkage, A positioner and an elastic component, characterized in that: The linking part and the positioning part are juxtaposed and pivotally connected to the middle rail, and the inner rail is provided with a first convex wall, the first convex wall is provided with a locking part, the outer rail is provided with a second convex wall, and the second convex wall is provided with a locking part. There is a stopper, the linking part includes a locking end and a release end, the positioning part includes a release end and a fixed end, the elastic component is set on the middle rail, and the elastic component provides elastic force to apply pressure on the linkage The one side of the lever arm with the release end of the piece and the one side of the lever arm with the fixed end of the positioning piece. Corresponding to the stop portion of the second convex wall of the outer rail. 2 . The interlocking positioning structure for sliding rail stretching according to claim 1 , wherein the first protrusion includes an inclined surface corresponding to the release end of the positioning member. 3 . 3 . The interlocking positioning structure for sliding rail stretching according to claim 1 , wherein the second protrusion includes an inclined surface corresponding to the release end of the interlocking element. 4 . 4. The interlocking positioning structure for the stretching of the slide rail according to claim 1, wherein the elastic component has a first elastic foot and a second elastic foot, which respectively provide elastic force against the release of the linkage end and the fixed end of the locator. 5. The interlocking positioning structure for the stretching of the slide rail according to claim 1, characterized in that, the first torsion spring and the second torsion spring are set on the pivot tip of the elastic component, and the active end of the first torsion spring is applied Press on the lever force arm of the release end of the linkage piece, and the action end of the second torsion spring presses on the lever force arm of the fixed end of the positioning piece.

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