CN100360821C - Three-section type slide rail positioning device - Google Patents

Abstract

The invention relates to a three-section slide rail positioning device, which comprises a movable rail, a middle rail and a fixed rail, wherein the positioning device is positioned at the relatively stretched joint of the middle rail and the fixed rail and is characterized in that: the fixing rail is provided with a slot hole, a clamping part is accommodated in the slot hole, one end of the clamping part is provided with a lug which is abutted against the edge of the slot hole, a spring sheet is fixedly arranged on the fixing rail, one end of the spring sheet is buckled against the lug of the clamping part, so that the clamping part is in a state that the other end of the clamping part is tilted and is higher than the surface of the fixing rail, an unlocking part is arranged on the middle rail, one end of the unlocking part is fixed, an arm is extended to be connected with an arch-shaped plate, the front end of the arch-shaped plate is extended to be connected with a U-shaped plate, an opening is arranged on the middle rail, the U-shaped plate can penetrate into the opening, and the two sides of the opening are punched and formed into a convex clamping body. The middle rail can be temporarily clamped and positioned relative to the fixed rail, or the clamping piece is separated from the clamping body when the movable rail is pushed to be retracted, so that the positioning state of the middle rail is released.

Description

Three-stage slide rail positioning device

technical field

The invention relates to a three-stage slide rail positioning device.

Background technique

At present, the three-stage slide rail design with better functionality, after pulling out the movable rail and the middle rail, mostly prevents the movable rail and the middle rail from retracting easily and slides into the fixed rail. This function is mainly used for activities. There are positioning devices at the joints between the rail and the middle rail, and between the middle rail and the fixed rail, so as to prevent the retraction of the movable rail and the middle rail.

And such as U.S. Patent No. 4560212, No. 5551775, No. 5757109, No. 6350001 B1, No. 6585335 B2, No. 6655763 B2, No. 6705689 B2, No. 6749276 B2, No. 6805418 B2 and early application publication No. The slide rail products shown in US2003/0107309 A1 and US 2003/0111942 A1 are anti-shrinkage slide rails with stretch positioning devices.

However, various types of slide rails have different functional requirements depending on the application occasions. It is inevitable for industry competition to develop suitable products to meet market requirements.

Contents of the invention

The object of the present invention is to provide a three-section slide rail positioning device with more rationalized component planning, operation and use, and manufacturing and processing, which can make the three-section slide rail composed of movable rail, middle rail and fixed rail in a stretched state. , so that the intermediate rail can be conveniently positioned temporarily relative to the fixed rail, or the positioning state can be released in conjunction with the income of the movable rail.

According to the three-section slide rail positioning device in one aspect of the present invention, the three-section slide rail is composed of a movable rail, a middle rail, and a fixed rail, and the positioning device is located at the joint where the middle rail and the fixed rail are relatively stretched, and its characteristics are: A slot hole is set on the fixed rail, and a catch member is accommodated in the slot hole. One end of the catch member has a lug abutting against the edge of the slot hole, and a spring piece is fixed on the fixed rail, and one end of the spring piece Buckle against the lug of the catch piece, so that the other end of the catch piece is raised and higher than the surface of the fixed rail, and a release piece is provided on the middle rail, one end of the release piece is fixed, and it extends a The arm is connected to an arched plate, and the front end of the arched plate is extended to connect with a ㄇ-shaped plate, and an opening is provided on the middle rail, and the ㄇ-shaped plate can pass through the opening, and the two sides of the opening face the bottom Stamped and formed convex card body.

According to another aspect of the present invention, the three-section slide rail positioning device, the three-section slide rail is composed of a movable rail, a middle rail, and a fixed rail, and the positioning device is located at the joint where the middle rail and the fixed rail are relatively stretched, and its characteristics are : the fixed rail is provided with a slot hole, and a catch piece is accommodated in the slot hole, and the central section of the catch piece forms a lug with a hole to cover the lug on the edge of the slot hole, and The ear end of the sleeve is integrally formed with an elastic piece extended and fixed on the fixed rail, so that the other end of the latch is raised and higher than the surface of the fixed rail, and a release member is provided on the middle rail. One end of the release member It is fixed, and one arm is extended to connect with an arched plate, and the front end of the arched plate is extended to connect with a ㄇ-shaped plate, and an opening is set on the middle rail, and the ㄇ-shaped plate can pass through the opening, and the opening The two sides of the hole are punched to form a protruding card body toward the bottom.

According to the above-mentioned scheme of the present invention, the card body and the tilted end of the locking part are locked against each other, or the movable rail pushes against the arched plate of the releasing part, so that the ㄇ-shaped plate is pressed down in conjunction with the locking part, and Unlatch it.

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.

Description of drawings

Figure 1 is an exploded view of an embodiment of the present invention.

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

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

Fig. 4 is a schematic diagram (1) of the retracting and releasing action of the embodiment of the present invention.

Fig. 5 is a schematic diagram (2) of the retracting and releasing action of the embodiment of the present invention.

Fig. 6 is a schematic diagram (3) of the retracting and releasing action of the embodiment of the present invention.

Fig. 7 is a schematic diagram of the collapsed state of the embodiment of the present invention.

Fig. 8 is a view of a modified example of the locking member according to the embodiment of the present invention.

Detailed ways

Referring first to Fig. 1 and Fig. 2, the positioning device of the present invention is used in conjunction with the three-section slide rail. The sliding parts 4 and 5 are arranged between the rails 3 to facilitate sliding, and the movable rail 1 and the middle rail 2, and the middle rail 2 and the fixed rail 3 can relatively limit the pull-out distance, and the pull-out stop structure is not Belonging to the patent claim of the present invention, its part will not be illustrated and elaborated here, and the structure partially disclosed in the accompanying drawings is not the only implementable structure of the present invention, which should not limit the scope of the patent of the present invention; and this The main structure of the inventive positioning device is located at the joint where the middle rail 2 and the fixed rail 3 are relatively stretched. The specific feasible examples are:

A slot 31 is provided on the aforementioned fixed rail 3, and a catch piece 6 is accommodated in the slot hole 31. One end of the catch piece 6 has a lug 61 abutting against the edge of the slot hole 31, and the edge of the slot hole 31 forms a A protruding piece 32 can penetrate in the lug 61, and form two baffles 33 on the other side of the slot 31, and an insert 62 can be set at the end of the locking part 6 between the two baffles 33, and the A shrapnel 7 is fixed on the fixed rail 3, and one end of the shrapnel 7 is buckled against the lug 61 of the engaging member 6, so that the other end of the engaging member 6 is tilted higher than the surface of the fixing rail 3, and the The locking part 6 can be levered to swing and reset automatically. In addition, a release part 8 is arranged on the middle rail 2. One end of the release part 8 is fixed, and an extended arm 81 is connected to an arched plate 82. The arched plate 82 both sides are molded oblique pieces 821, and the front end is connected with a ㄇ-shaped plate 84 with a bent portion 83, and an opening 21 is provided on the middle rail 2, so that the ㄇ-shaped plate 84 is stretched in the opening 21, And the two sides of the opening 21 are punched and formed to protrude the card body 22 towards the bottom.

With the above design, after the three-section slide rail is pulled out, as shown in Figure 3, when the movable rail 1 and the middle rail 2 are opposite to the fixed rail 3, once the middle rail 2 is pulled out, the middle rail 2 extends out of the fixed rail 3 until it stretches. After the end point, the catch piece 6 on the fixed rail 3 is buckled against its lug 61 by the elastic piece 7 and can be tilted, so that the catch piece 6 is stuck against the card body 22 at the bottom of the middle rail 2 with its tilted end. , so that the middle rail 2 cannot be pushed back to prevent it from retracting, and the ㄇ-shaped plate 84 of the release member 8 on the middle rail 2 penetrates the opening 21 and abuts on the catch member 6, so that the release member 8 is Arched state.

When the movable rail 1 is retracted and pushed into the middle rail 2 again, as shown in Fig. 4, Fig. 5, and Fig. 6, the movable rail 1 that is retracted and slid will push against the arch of the release member 8 with the edge of the edge rail body 11. Slopes 821 on both sides of the shaped plate 82, and the interlocking shaped plate 84 presses down the catch piece 6 to move down, so that the catch piece 6 is separated from the card body 22 at the bottom of the middle rail 2, and then the middle rail 2 and the fixed rail 3 are released. The anti-shrinkage positioning state can give to promote the middle rail 2 again, and finally, as shown in Figure 7, the movable rail 1 and the middle rail 2 can be received together in the fixed rail 3 at last.

In addition, as shown in FIG. 8 , the catch member 6A provided on the fixed rail 3A has a lug 61A with a hole 611A formed in the central section, so as to be sleeved on the edge of a slot hole 31A at the fixed rail 3A. A protruding piece 32A, and the end of the ear 61A is integrally formed and fixed on the fixed rail 3A, so that the locking member 6A can swing and reset.

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 (4)

1. three-sectional sliding-rail positioner, three-sectional sliding-rail is made of movable rail, mid-rail, fixing track, and its positioning device is positioned at the junction of the relative stretching with fixing track of mid-rail, it is characterized in that:

Establish a slotted eye on this fixing track, one holding piece is placed in this slotted eye, this holding piece one end tool one lug is taken and is butted on this slotted eye edge, and be installed with a shell fragment on the fixing track, this shell fragment one end button is butted on the lug of this holding piece, make this holding piece be the state of holding perk in addition and being higher than the fixing track surface, and mid-rail is provided with a release piece, this release piece one end is fixed, and extend the continuous arch sheet of an arm, this arch sheet front end extends the ㄇ template that links to each other, and is provided with a perforate in mid-rail, this ㄇ template can be extended through in this perforate, and these perforate both sides are towards the card body of bottom impact briquetting protrusion.

2. three-sectional sliding-rail positioner according to claim 1 is characterized in that, described slotted eye edge is provided with a lug and penetrates in this lug.

3. three-sectional sliding-rail positioner according to claim 1 is characterized in that, described slotted eye one edge forming two catch, and the holding piece end is provided with a dummy slider and stretches between this two catch.

4. three-sectional sliding-rail positioner, three-sectional sliding-rail is made of movable rail, mid-rail, fixing track, and its positioning device is positioned at the junction of the relative stretching with fixing track of mid-rail, it is characterized in that:

Establish a slotted eye on this fixing track, one holding piece is placed in this slotted eye, described holding piece central sections moulding one has the cover ear in hole, to be placed on the lug at this slotted eye edge, and this cover ear end is one-body molded to be extended with a shell fragment and to be fixed on the fixing track, make this holding piece be the state of holding perk in addition and being higher than the fixing track surface, and mid-rail is provided with a release piece, this release piece one end is fixed, and extend the continuous arch sheet of an arm, this arch sheet front end extends the ㄇ template that links to each other, and is provided with a perforate in mid-rail, this ㄇ template can be extended through in this perforate, and these perforate both sides are towards the card body of bottom impact briquetting protrusion.

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