CN100515273C - Multi-section automatic homing device for sliding rail - Google Patents

Abstract

The invention relates to an automatic homing device of a multi-section slide rail, which comprises a slide block and a hook member, or further comprises an inner rail fixing member, and is implemented by matching an outer rail and a middle rail or/and the inner rail, wherein the middle rail penetrates through the outer rail, the slide block is embedded and slid in a slide seat, the slide seat is arranged at the end part of the outer rail, the slide block can be pulled back to the end part of the outer rail through a first elastic assembly, a sliding groove of the slide seat is provided with a position cut for the corresponding positioning of the slide block, the hook member is pivoted on the middle rail and corresponds to the slide block, the hook member comprises a double convex hook, a second elastic assembly correspondingly abuts against the slide block, and the inner rail fixing member is pivoted on the middle rail so as to correspondingly abut against the inner rail.

Description

Multi-section slide rail automatic homing device

technical field

The invention relates to a multi-stage slide rail automatic return device, especially when the inner rail and the middle rail are pushed back to the end stroke of the retracted position, they can be automatically pulled back to the end of the outer rail, and the automatic return slide When a block fails accidentally, it can be operated again to return to normal.

Background technique

Generally, when a drawer or the like is used for horizontal sliding activities with slide rails, the whole movement of pulling out, unfolding or retracting back to the original position will be completed by the user's force operation. In addition, the slide rails can also be automatically returned to the original position. This kind of automatic returning slide rail can automatically put the drawer into the storage space of the cabinet and other things at the end of the stroke when the drawer is pushed back and is completely closed.

And above-mentioned automatic return slide rail of mentioning, relevant design, the person disclosed to some extent in China Taiwan Patent Gazette, as No. No. 468437, No. 493406, No. 502588, No. 504988, No. 525453, No. 525454, No. 538715, No. 551088, No. 556523, No. 566128, No. 564720, No. M243105, No. M244806 No. M245865, M249559, M251524, M254150, M261102, M264932, M268984, M272454, M275755, M280715, M281524, I231749, , and Invention Publication Publication No. 200425859, No. 200425861, No. 200500032, and No. 200520710.

From the above disclosure, it can be seen that automatic return devices such as slide rails are quite in line with the needs of users, so many companies have devoted their efforts to research and development, and the applicant is also in this field, and also constantly develops new products, which is the result of the present invention generation.

Contents of the invention

The purpose of the present invention is to provide a multi-section sliding rail automatic homing device to achieve:

a. When the inner rail and the middle rail can be pushed back to the final stroke of the retracted position, the inner rail and the middle rail can be automatically pulled back to the end of the outer rail, and the inner rail and the middle rail are stretched to activate the automatic movement. When the returned slider fails due to careless operation, the push-back action can be operated again to pull out the automatically returned slider again.

b. Applied to products that include outer rails, middle rails, inner rails, and auxiliary rails connected by the middle rails to slide on the outer rails. The hooks of the present invention cooperate with the implementation of the sliders, and the operation is convenient. The inner rails and the middle rails When pushed back to the retracted position, the action of automatically pulling back the end of the outer rail is smooth, and in the design of preventing operation failure, the self-returning slider can also return to normal through the elastic pivoting and driving of the hook. And the hook has an excellent service life.

The multi-segment slide rail automatic homing device of the present invention includes a slider, a slide seat and a hook, and is implemented with an outer rail and a middle rail, and the middle rail wears and slides on the outer rail, wherein the slider includes side lugs , latching lugs, card slots, stoppers, and connected with the first elastic component; the sliding seat includes a fixing part, a chute, a positioning cutout, and the outer rail is provided with a fixing part corresponding to the sliding seat, so that the sliding seat It is fixed at the end of the outer rail, and the slider slides in the chute of the slider with side lugs. The first elastic component is connected to the slider so that the slider has the elastic force to be pulled back to the end of the outer rail. The slider The positioning notch is used for the locking lug of the slider to be positioned correspondingly; the hook is arranged on the middle rail and corresponds to the slider. The hook includes a first hook, a second hook, a pivot joint and The second elastic component, the pivot joint is pivotally connected to the middle rail, by means of the second elastic component, the first hook and the second hook are opposed to each other corresponding to the slot and stop of the slider, and the adjacent hooks are provided on the middle rail There are tabs that correspond to the offset of the slider.

In addition, the structure of the present invention may also include sliders, sliding seats, hooks and inner rail fixing parts, and be implemented with outer rails, middle rails, and inner rails, and the middle rails slip through the outer rails, while the inner rails slip through them. In the middle rail, the slider includes side lugs, latch lugs, slots, stoppers, and is connected with a first elastic component; the slide seat includes a fixing piece, a chute, and a positioning cutout, and the outer rail corresponds to There is a fixing piece on the sliding seat, so that the sliding seat is fixed on the end of the outer rail, and the sliding block slides in the sliding groove of the sliding seat with side lugs. The first elastic component is connected to the sliding seat so that the sliding block has a Pulled back by the elastic force at the end of the outer rail, the sliding seat uses the positioning cutout for the corresponding locking lug of the slider to be positioned; the hook is arranged on the middle rail and corresponds to the slider. The hook includes The first hook, the second hook, the pivot joint and the second elastic component, the pivot joint is pivotally connected to the middle rail, and the first hook and the second hook correspond to the slot and stop of the slider by means of the second elastic component. offset, and the adjacent hook piece is provided with a protruding piece corresponding to the slider on the middle rail; the inner rail fixing part is pivotally connected to the middle rail, and the inner rail fixing part includes a protruding hook and is equipped with a third elastic assembly, and the inner rail is provided with a fixing part corresponding to the protruding hook, and the protruding hook is made to abut against the fixing part of the inner rail by means of the action of the third elastic component.

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.

Fig. 2 is a detailed exploded view of the sliding seat of the embodiment of the present invention.

Fig. 3 is a detailed exploded view of the hook part 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, "the fully folded state".

Fig. 5 is the second schematic diagram of the operation of the embodiment of the present invention, "the normal situation where the hook pulls out the slider".

Fig. 6 is the third schematic diagram of the operation of the embodiment of the present invention, "a state where the slider is pulled out and positioned under normal conditions".

Fig. 7 is the fourth schematic diagram of the operation of the embodiment of the present invention, "the status of the slider just returning automatically when it is folded under normal conditions".

Fig. 8 is the fifth schematic diagram of the operation of the embodiment of the present invention "abnormal situation/schematic diagram of the hook being pulled out/but the sliding seat rebounding".

Fig. 9 is the sixth operation schematic diagram of the embodiment of the present invention "Operation Diagram 1 for Elimination of Abnormal Situations/The Hook Part Arrives at the Slider for the First Time".

Fig. 10 is the operation schematic diagram 7 of the embodiment of the present invention "Operation Diagram 2 for Removing Abnormal Situations/The Hook Part Reinserts into the Slider".

Fig. 11 is the seventh schematic diagram of the operation of the embodiment of the present invention "the third schematic diagram of the abnormal situation elimination operation/the hook has been hooked to the slider and then pulled out".

Fig. 12 is a detailed exploded view of hooks and inner rail fixing parts according to another embodiment of the present invention.

Fig. 13 is a combined schematic view of hooks and inner rail fixing parts according to another embodiment of the present invention.

Fig. 14 is one of the schematic diagrams of the operation of another embodiment of the present invention, "a state when the fixing member has not yet locked the inner rail".

Fig. 15 is the second schematic diagram of the operation of another embodiment of the present invention "the state when the fixing member is about to clamp the inner rail".

Fig. 16 is the third schematic diagram of the operation of another embodiment of the present invention, "the state when the fixing member is completely locked on the inner rail".

Fig. 17 is a perspective view of a part of the third elastic component according to another embodiment of the present invention.

Fig. 18 is a detailed exploded view of the sliding seat in another embodiment of the present invention.

Fig. 19 is a perspective view of another embodiment of the present invention related to the hook part.

Fig. 20 is a perspective view of a part related to a hook according to another embodiment of the present invention.

Fig. 21 is a perspective view of the hook part of the second embodiment of the present invention.

Detailed ways

As shown in Figures 1 to 3, the device of the present invention includes a slider 1, a slide seat 2 and a hook 3, and is implemented with an outer rail 4 and a middle rail 5, and the middle rail 5 slides on the outer rail 4 , wherein the slider 1 includes side lugs 11, locking lugs 12, locking grooves 13, stoppers 14, and is connected with a first elastic component 15, and the slider 2 includes a fixing part "this embodiment is a convex part 21, a convex Ear 24 and fixing bolt 25", slide groove 22, positioning notch 23, and outer rail 4 is also correspondingly provided with fixing parts "this embodiment is positioning groove 41, embedded groove 42, limiting piece 43 and fixing hole 44", and then make The sliding seat 2 is fixed on the end of the outer rail 4. In this embodiment, the convex part 21 is embedded in the positioning groove 41, the lug 24 is embedded in the slot 42, and the lug 24 is limited to be stuck under the limiting piece 43, and the fixing bolt 25 The connecting sliding seat 2 is locked in the fixing hole 44", the sliding block 1 slides in the sliding groove 22 of the sliding seat 2 with the side lug 11, and the first elastic component 15 is arranged in the sliding groove 22 of the sliding seat 2 so that The slider 1 is pulled back to the position corresponding to the end of the outer rail 4, the slider 2 uses the positioning cutout 23 for the locking lug 12 of the slider 1 to be positioned corresponding to the temporary card, and the hook 3 is arranged on the middle rail 5, And corresponding to the slider 1, the hook 3 includes a first hook 31, a second hook 32, a pivotal joint 33 and a second elastic component 34, the pivotal joint 33 is pivotally connected between the middle rail 5 and its auxiliary rail 51, the second The two elastic components 34 make the first hook 31 and the second hook 32 correspond to the slot 13 and the stopper 14 of the slider 1 under normal conditions, and the adjacent hook 3 is provided with a protruding piece 52 "this An embodiment is that the protruding piece 52 ″ is formed by bending the auxiliary rail 51 .

During normal use and operation, as shown in Figure 4 to Figure 7, where:

Figure 4 shows that the slide rail is in a folded state, the slide block 1 is pulled by the first elastic component 15 and located at the rear end of the slide seat 2, and the first hook 31 and the second hook 32 of the hook 3 are stuck on the slide block 1, and limited to the inner side of the stopper 14, "use the second hook 32 against the stopper 14", that is, use the slider 1 and the hook piece 3 to fit together, so that the middle rail 5 is received on the outer rail 4 to be positioned afterwards;

Figure 5 shows that the middle rail 5 is stretched relative to the outer rail 4, and the hook 3 drives the slider 1 to slide in the slider 2 until the locking lug 12 is located in front of the positioning cutout 23 of the slider 2;

Figure 6 shows that the middle rail 5 is stretched a small distance relative to the outer rail 4, and its locking lug 12 is slid into the positioning cutout 23 of the slide seat 2 and positioned, while the hook 3 continues to be pulled out along with the middle rail 5 ;

Figure 7 is a schematic diagram of the operation when the middle rail 5 is retracted again. After the middle rail 5 is retracted, the first hook 31 and the second hook 32 of the hook 3 can be inserted into the slot 13 of the slider 1 again, and the The lug 52 of the rail 5 pushes against the slider 1, so that the locking lug 12 can disengage from the positioning cutout 23 of the slider 2, and the stopper 14 abuts against the hook 3, and the slider 1 is pulled back by the first elastic component 15 And middle rail 5 and return automatically.

Also, when there is an abnormal situation in the operation, that is, when the locking lug 12 of the slider 1 is located at the positioning notch 23 of the slider 2, the operation fails, such as external force shocks, which makes the slider 1 inadvertent during the pulling process or after positioning. Rebound the rear end of the slider 2, as shown in Figures 8 to 11, where Figure 8 is a schematic diagram of a positioning failure, the slider 1 is separated from the hook 3 and the slider 1 bounces back to the retracted position, in order to eliminate this situation, As shown in Figure 9, the middle rail 5 can be pushed back again. Of course, it can also be pushed back after being pulled out for use this time. Although there is no automatic homing action in this push-back operation, it will be easy to pull it out next time. Restoration with automatic return function", with the deflectable function of the hook 3, the first hook 31 reaches the stop 14 of the slider 1 and automatically deflects, and then as shown in Figure 10, the first hook 3 of the hook 3 A hook 31 can be hooked into the draw-in groove 13, and then as shown in Figure 11, pull out the middle rail 5 and the hook 3, then the first hook 31 hooks the stop 14, and then brings out the slide block 1, which can Make the locking lug 12 of the slider 1 slide into the positioning notch 23 of the sliding seat 2 again to complete the positioning, thereby eliminating the abnormal situation of positioning failure.

As shown in Figure 12 and Figure 13, it is another embodiment of the present invention, and please refer to Figure 1, which includes a slider 1, a slider 2, a hook 3 and an inner rail fixing part 7, and is matched with an outer rail 4 "see Fig. 1 has the same structure, so it will not be described in detail" and the middle rail 5A and the inner rail 6A are implemented. Since the structure and implementation of the slider 1, sliding seat 2, and hook 3 are not different from the previous embodiments, so they will not be described in detail. . Wherein, the inner rail fixing member 7 is pivotally connected to the middle rail 5A, and the inner rail fixing member 7 can swing through its auxiliary rail 51A, and the inner rail fixing member 7 includes at least one protruding hook 71 and a third elastic component 72 and the pivot pin 73, and the inner rail fixing part 7 is pivotally connected to the middle rail 5A by the pivot pin 73, and the inner rail 6A is correspondingly provided with a fixing part 61A, and by the function of the third elastic component 72, the protruding hook 71 can resist to the fixing portion 61A of the inner rail 6A.

As for the operation of the relevant inner rail fixing member 5A, as shown in Figure 14 and Figure 15, when it is folded, as shown in Figure 14, the inner rail 6A has not been completely folded, and the protruding hook 71 of the inner rail fixing member 7 has not yet been fully folded. Arriving at the fixing part 61A of the inner rail 6A, when the fixing part 7 is shifted to the fixing part 61A, as shown in Figure 15, the fixing part 61A can automatically lift up the protruding hook 71 of the inner rail fixing part 7, and then, as shown in Figure 16 As shown, the inner rail fixing part 7 is affected by the third elastic component 72, and its protruding hook 71 can clamp the fixing part 61A of the inner rail 6A again, so that the inner rail 6A is fixed in a retracted state relative to the middle rail 5A; As shown in FIG. 17 , the third elastic component 72A matched with the inner rail fixing member 7A must be a torsion spring.

In addition, as shown in FIG. 18 , the fixing part of the sliding seat 2A can also be fixedly connected with the hook foot 26A corresponding to the hook groove 45A of one of the fixing parts of the outer rail 4A.

And, as shown in FIG. 19 , FIG. 20 and FIG. 21 , they are other possible implementations of the hooks 3A, 3B, and 3C respectively, wherein, as shown in FIG. 19 , the second elastic component 35A is an elastic sheet; As shown in FIG. 20 , the second elastic component 35B is a tension spring; as shown in FIG. 21 , the second elastic component 35C is a torsion spring.

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 (11)

1. a multi-segment type sliding rail automatic homing device comprises slide block, slide and colludes part, and the collocation outer rail and in rail and implementing, and that middle rail is worn is sliding in outer rail, it is characterized in that:

Described slide block comprises side lug, clip lug, draw-in groove, block, and connects first elastic parts; Described slide comprises fixture, chute, polarizing slot, and outer rail is provided with fixture corresponding to slide, and make slide be fixed in the outer rail end, slide block then with side lug embedding cunning in the chute of slide, first elastic parts is connected in slide and is pulled in the elastic force of outer rail end to make slide block have, and slide fastens and locatees with the clip lug correspondence of polarizing slot for slide block; The described part that colludes then is located on the middle rail, and corresponding to slide block, collude part and include first hook, second hook, articulated section and second elastic parts, the articulated section is articulated in middle rail, make first hook and second hook offset by second elastic parts, and the adjacent part that colludes is provided with the lug that offsets corresponding to slide block in middle rail corresponding to the draw-in groove of slide block and block.

2. multi-segment type sliding rail automatic homing device according to claim 1 is characterized in that, the fixture of described slide is a lug, and the fixture of outer rail then is caulking groove and margining tablet, and lug embeds caulking groove and is stuck under the margining tablet.

3. multi-segment type sliding rail automatic homing device according to claim 1 is characterized in that, the fixture of described slide is a protuberance, and the fixture of outer rail then is a locating slot, and protuberance embeds locating slot.

4. multi-segment type sliding rail automatic homing device according to claim 1 is characterized in that, the fixture of described slide is a gim peg, and the fixture of outer rail then is a fixing hole, and gim peg is worn company's slide and is locked in fixing hole.

5. multi-segment type sliding rail automatic homing device according to claim 1 is characterized in that, the fixture of described slide is the hook pin, and then for colluding groove, the hook pin colludes into colluding groove the fixture of outer rail.

6. multi-segment type sliding rail automatic homing device, comprise slide block, slide, collude part and in the rail fixture, and the collocation outer rail and in rail implement with interior rail, and that middle rail is worn is sliding in outer rail, interior rail is then worn and is slided in middle rail, it is characterized in that:

Described slide block comprises side lug, clip lug, draw-in groove, block, and connects first elastic parts; Described slide comprises fixture, chute, polarizing slot, and outer rail is provided with fixture corresponding to slide, and make slide be fixed in the outer rail end, slide block then with side lug embedding cunning in the chute of slide, first elastic parts is connected in slide and is pulled in the elastic force of outer rail end to make slide block have, and slide fastens and locatees with the clip lug correspondence of polarizing slot for slide block; The described part that colludes then is located on the middle rail, and corresponding to slide block, collude part and include first hook, second hook, articulated section and second elastic parts, the articulated section is articulated in middle rail, make first hook and second hook offset by second elastic parts, and the adjacent part that colludes is provided with the lug that offsets corresponding to slide block in middle rail corresponding to the draw-in groove of slide block and block; On the rail, rail fixture comprised protruding colluding and the 3rd elastic parts in this during the rail fixture was articulated in described, and interior rail is provided with fixed part corresponding to protruding colluding, and made the protruding fixed part that colludes to inside rail by the 3rd elastic parts.

7. multi-segment type sliding rail automatic homing device according to claim 6 is characterized in that, the fixture of described slide is a lug, and the fixture of outer rail then is caulking groove and margining tablet, and lug embeds caulking groove and is stuck under the margining tablet.

8. multi-segment type sliding rail automatic homing device according to claim 6 is characterized in that, the fixture of described slide is a protuberance, and the fixture of outer rail then is a locating slot, and protuberance embeds locating slot.

9. multi-segment type sliding rail automatic homing device according to claim 6 is characterized in that, the fixture of described slide is a gim peg, and the fixture of outer rail then is a fixing hole, and gim peg is worn company's slide and is locked in fixing hole.

10. multi-segment type sliding rail automatic homing device according to claim 6 is characterized in that, the fixture of described slide is the hook pin, and then for colluding groove, the hook pin colludes into colluding groove the fixture of outer rail.

11. multi-segment type sliding rail automatic homing device according to claim 6 is characterized in that, described interior the protruding of rail fixture colluded at least one.

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