CN2634925Y

CN2634925Y - Sliding rail automatic pull back homing device

Info

Publication number: CN2634925Y
Application number: CN 03272002
Authority: CN
Inventors: 曾一明; 陈庚金
Original assignee: Chuanhu Factory Co ltd
Current assignee: Chuanhu Factory Co ltd
Priority date: 2003-06-12
Filing date: 2003-06-12
Publication date: 2004-08-25
Anticipated expiration: 2013-06-12

Abstract

The utility model is an automatic pullback and regression device for slide rail, and the end part of the fixed rail section of the slide rail is provided with a drawing base, which is extended to a slippage seat surface; the slippage seat surface forms a chute, the chute end of one side of the chute is extended with a bending chute section, and the slippage seat surface is provided with a slipping pull-piece with a front and a back embedded feet extending into the chute, and is also provided with an elastic component that is used to draw the slipping pull-piece; a holder is arranged on the end part of the active rail section of the slide rail. The utility model is characterized in that the side to the holder on the active rail section of the slipping pull-piece forms an inclined surface with certain height, the back edge of the inclined surface forms an invagination part, and the back edge forms a hollow slot hole along the outline of the inclined surface and the invagination part with the slipping pull-piece body, so the inclined surface and the invagination part becomes the shrapnel-type form for the bodies of the slipping pull-pieces connected front and back, and the level plane of the slippage seat surface corresponding to the slipping pull-piece can produce reasonable and limited inclination when the slipping pull-piece is pulled by the holder on the end part of the active rail section.

Description

Slide rail retracts homing device automatically

(1) technical field

The relevant a kind of slide rail of the utility model retracts homing device automatically, refers in particular to object such as a kind of combination such as drawer and makes its slide rail can retract the improved device of playback automatically when pushing back the latter end stroke.

(2) background technology

The use of drawer design mainly be between drawer and cabinet (table) body, be provided with level to slide rail, its slide rail has two joints or the three joint rail sections of the slippage of socket-connecting, and respectively with its fix, movable rail section is connected to the drawer side mutually and cabinet (table) body, and then make drawer can utilize the activity of slide rail horizontal sliding, for shifting out cabinet (table) body, convenient placement article and use; By this, but the pull pattern of activity of utilization drawer, and the cabinet product of general family expenses, office fittings or kitchen tools equipment just can appropriateness form open space when needs, making things convenient for glove, to fetch, and do not take up space.

Use pattern and see early stage drawer, it is pulled out expansion or regains the whole process action of playbacking and finish by the operation of user's application of force, but under some situation, user's application of force was too small when cause pushed back drawer, just can fail that drawer is taken in cabinet body pass fully closes, cause drawer to expose the space or outstanding the generation had obstacles, and at this situation, promptly see the matching design that automatic homing mechanism is arranged in the existing slide rail product, relevant this type of product design, case is announced No. 348453 before national patent, No. 468437, disclosed the part technological means in No. 525453 and No. 525454, and the detailed start principle of seeing this kind mechanism, it is nothing more than being to utilize the sliding component be subjected to the spring assembly effect to drive slide rail to playback, and by the chute structure that suitably cooperates, make sliding component can be brought to a position, location and an extension spring assembly, when slide rail is regained latter end, separate this sliding component of pulling automatically again, and make sliding component be subjected to the effect of spring assembly pulling force to drive the final playback point of slide rail income in the lump with the stretching, extension of slide rail; Yet, case before the patent of this class automatic homing mechanism, its utilization principle is roughly the same, only is to make every effort to variation in shape in structure spatial shape and member as many, with the tool novelty, and meets each tame dealer's product demand.

Still there is problem on service life in the present application people deeply visiting the local member of realizing the product of commonly using before grinding above-mentioned patent on the basis of case, as announce No. 525454, wherein, be the button portion 643 that extends outwardly and be bent into crozier on these beat body 64 sides, and the pushing and pressing part 441 of cooperation activity rail 44 1 ends and make the hook of this button portion 643 support end to have an opening, the crozier of button portion 643 forms nonocclusive state, so that can limitedly be scratched bending deformation; Yet, the button portion 643 of this kind crozier when practical operation is used, once number of times frequently reach use a period of time after, life of product is shortened in not only fracture easily, and add and the qualitative change embrittlement of plastic material more increase the generation of fracture situation.

(3) utility model content

The purpose of this utility model is to provide a kind of slide rail to retract homing device automatically, so that slide rail pushes back to when the latter end stroke, it can use the slip draw piece that retracts homing device automatically to retract the section of stretching out of slide rail automatically, so that the withdrawal of slide rail is located really, and by the improvement of this slip draw piece and the matching design of relative configurations, reduce the spoilage of part, to increase product service life.

Slide rail of the present utility model retracts homing device automatically, slide rail overlaps a sliding movable rail section by establishing a sliding aiding elements in the retaining rail section, wherein, a drawing pedestal is established in this retaining rail section end, extend a slippage seat surface with thin-walled form on this drawing pedestal, form the chute of one hollow out on this slippage seat surface, this chute is towards the groove end of movable rail section pull-out direction and extend a nearly vertical curved slot section, and on the slippage seat surface, establish a slip draw piece, before this slip draw piece has at least, back two embedding pin, be butted in the chute to stretch, and establishing an elastic parts between embedding pin and the drawing pedestal rear side end before the slip draw piece draws mutually, bestow slip draw piece one elastic pulling force, and should be provided with a card body in the end of above-mentioned movable rail section by the slip draw piece relatively; Be characterized in to making above-mentioned slip draw piece can have the inclined plane part of height towards the side formation one of movable rail Duan Kati, the trailing edge of its inclined plane part forms a recess along connecing, and the profile along this inclined plane part and recess forms a saturating dead slot hole in its slip draw piece body, and make link to each other before and after the becoming spring-piece type form of slip draw piece body of inclined plane part and recess, be beneficial to strain and be difficult for losing.

According to the utility model, when above-mentioned slip draw piece is subjected to the card body pushing and pressing of movable rail section end, the inclination that the horizontal plane of the relative slippage seat surface of this slip draw piece produces suitable limit, its utilization means are before making above-mentioned chute butt slip draw piece, but the groove section thin-walled horizontal plane district elasticity of rear embedding them is inclined and is stuck up, feasible pattern is to offer a groove in runner rear end in addition, but and make the thin-walled horizontal plane district between chute front end curved slot section and rear end groove form the shell fragment form that a limit elasticity is inclined and stuck up, and the draw piece that helps to slide produces tilting action when compressing relatively, is beneficial to slide the relatively engaging that pushes of draw piece recess of movable rail Duan Kati.

(4) description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a local assembled view of the present utility model.

Fig. 3 is the playback Status view that folds of the present utility model.

Fig. 4 is a sliding track stretching process schematic diagram of the present utility model ().

Fig. 5 is a sliding track stretching process schematic diagram of the present utility model (two).

Fig. 6 is that slide rail of the present utility model pushes and folds latter end stroke schematic diagram ().

Fig. 7 is that slide rail of the present utility model pushes and folds latter end stroke schematic diagram (two).

Fig. 8 is that slide rail NG state of the present utility model engages schematic diagram () again.

Fig. 9 is that slide rail NG state of the present utility model engages schematic diagram (two) again.

Figure 10 is that drawing pedestal of the present utility model changes the illustration intention.

Figure 11 is the actuator state schematic diagram that the utility model changes example.

Figure 12 is another variation illustration intention of drawing pedestal of the present utility model.

(5) specific embodiment

At first consult shown in Figure 1, slide rail of the present utility model retracts homing device automatically, its slide rail basic framework that cooperates utilization to implement is to be provided with sliding aiding elements to overlap sliding movable rail section in the retaining rail section, and the embodiment that discloses in this accompanying drawing is the design of adopting syllogic steel ball slide rail, its retaining rail section 1 is to insert the sliding aiding elements 2 of rectangular body and wear movable rail section 3 in inside, two rail limits, be provided with the sliding aiding elements 4 of another length and width sheet volume morphing again in the recessed face inside of middle movable rail section 3, to give again cover sliding one outer movable rail section 5, but during this has, outer

movable rail section

3,5 syllogic steel ball rail structure, the non-unique cooperation example that retracts homing device for the utility model automatically, if in being somebody's turn to do, outer

movable rail section

3,5 omit one forms a two-part steel ball slide rail, and establish change through suitable size, still can use the homing device that retracts automatically of the present utility model; And characteristics of the present utility model are:

Retaining rail section 1 with respect in, outer movable rail section 3, the terminal point end of 5 incomes is provided with one and embeds the drawing pedestal 6 that fixes, elongation moulding one has the thin-walled form or non-ly is the slippage seat surface 61 of thin-walled on this drawing pedestal 6, form the chute 62 of one hollow out on this slippage seat surface 61, this chute 62 towards in, outer movable rail section 3, the groove end of 5 pull-out directions also extends a nearly vertical curved slot section 621, and, be provided with a slip draw piece 7 in slippage seat surface 61, this slip draw piece 7 is before having at least, rear embedding them 71,72, be butted in the chute 62 in order to stretch, and preceding embedding pin 71 sockets one elastic parts 8 by slip draw piece 7, elastic parts 8 is held in addition be connected in drawing pedestal 6 rear side end with traction mutually, and bestow slip draw piece 7 one elastic pulling forces, and as shown in Figure 2, the front end that this elastic parts 8 has preceding embedding pin 71 with respect to slip draw piece 7 is to form an oblique pull-shaped attitude, is pivot point for drawing slip draw piece 7 with rear embedding them 72, and can make the front end beat; In addition, slip draw piece 7 side of movable rail section 5 card bodies 52 outside aftermentioned forms one and can have inclined plane part 73 highly, its inclined plane part 73 trailing edges and edge connect and form a recess 74, and the profile of complying with this inclined plane part 73 and recess 74 forms a saturating dead slot hole 75 in its slip draw piece 7 bodies, and make link to each other before and after the becoming spring-piece type form of slip draw piece 7 bodies of inclined plane part 73 and recess 74, this form promptly helps strain, and is difficult for losing.

Should outer movable rail section 5 be that above-mentioned relatively slip draw piece 7 forms an engaging opening 51 in its rail end of body, the recess 74 of the corresponding again slip draw piece 7 of engaging opening 51 inner sides be provided with a card body 52 that protrudes out.

And by above-mentioned planning and designing, when withdrawn slide rail, as shown in Figure 3, outer movable rail section 5 is positioned at the income terminal point, the engaging opening 51 of its end can move in slippage seat surface 61 zones of drawing pedestal 6, and snaps in the recess 74 of the slip draw piece 7 of position on drawing pedestal 6 slippage seat surfaces 61 with the card body 52 of engaging opening 51 inside, and under this state, bestow the elastic pulling force of slip draw piece 7 by elastic parts 8, related pulling slip draw piece 7 is located in the lump with outer movable rail section 5.

In with slide rail; outer movable rail section 3; 5 pull out expansion; when the start of initially pulling out; as Fig. 4; shown in 5; it gives the outer movable rail section 5 of pulling out promptly fastens slip draw piece 7 with card body 52 recess 74 earlier; and before the related slip draw piece 7; rear embedding them 71; 72 along the chute 62 track slippages on the drawing pedestal 6 slippage seat surfaces 61; and while tensile elasticity assembly 8; immediately when slip draw piece 7 front ends slide onto the curved slot section 621 of chute 62 ends; just can snap in this curved slot section 621 by preceding embedding pin 71 is subjected to elastic parts 8 oblique pulling force; and slip draw piece 7 promptly produces the deflected condition of rotary oscillation; thereby make its recess 74 break away from the card body 52 of outer movable rail section 5; can continue to pull out stretching, extension so that outer movable rail section 5 is removed with the association of slip draw piece 7, and slip draw piece 7 just maintains the deflected condition that is stuck in curved slot section 621.

And when once again outer movable rail section 5 being pushed when folding, as shown in Figure 6, its outer movable rail section 5 that pushes back to the latter end stroke can be directly moves in the recess 74 of slip draw piece 7 of deflected conditions with the card body 52 of engaging opening 51 inboards, and be butted on recess 74 rear end wall bodies, continue under the exerting pressure of pushing and pressing in card body 52 immediately, as shown in Figure 7, the preceding embedding pin 71 of slip draw piece 7 just can skid off curved slot section 621 and enter chute 62 directly to track, simultaneously, slip draw piece 7 is removed deflected conditions and to put backwater straight to state, its recess 74 is overlapped again be stuck in the card body 52 of movable rail section 5 outward, pulling force by elastic parts 8 retracts slip draw piece 7 again, should push and have the pass that the outer movable rail section 5 (together with establishing the drawer object that connects) of inertia displacement effect reaches home and close the place, location through the application of force with slip draw piece 7 is related together.

In addition, after above-mentioned outer movable rail section 5 is pulled out stretching, extension, this former slip draw piece 7 that should be positioned at chute 62 curved slot sections 621 ends is the influences that might be subjected to the external force collision vibrations, cause breaking away from curved slot section 621 and retracted chute 62 another terminals (being called the NG situation) by elastic parts 8, under the situation that produces the NG situation, when outer movable rail section 5 pushes when folding again, as shown in Figure 8, the card body 52 of outer movable rail section 5 engaging openings 51 inboards is the inclined plane parts 73 that can push against slip draw piece 7, and this inclined plane part 73 is once be subjected to the pushing and pressing of card body 52, its utilization is complied with this inclined plane part 73 with recess 74 profiles and the saturating dead slot hole 75 of moulding provides a deformation space, as shown in Figure 9, be to make this inclined plane part 73 and the recess 74 front end parts can be with the deflection deformation of spring-piece type form, so that can forcing, card body 52 snaps in the recess 74, and get back to withdrawn slide rail terminal state shown in Figure 3, be able to normal start pattern when launching and carry out, and the inclined plane part 73 of this spring-piece type deflection deformation also is difficult for producing the situation of fracture with recess 74 in order to next slide rail.

In addition, above-mentionedly make card body 52 can snap on the mode of recess 74 again in order to overcome the NG situation, the enough deflections of tool supply card body 52 to compel to slipping into the deflection of spring-piece type form with recess 74 except that making inclined plane part 73, the applicant considers a bit in addition, when being card body 52 pushing and pressing of movable rail section 5 outside this slip draw piece 7 is subjected to, if slippage seat surface 61 horizontal planes of these slip draw piece 7 relative drawing pedestals 6 and the inclination that produces suitable limit, also help card body 52 sliding giving again smoothly to snap in the recess 74 through inclined plane part 73, at this point, except that the enough Bao Erke of slippage seat surface 61 horizontal plane thin-walled forms provide enough buckling deformation amount, embodiment more specifically, as shown in figure 10, it is before further making chute 62 be connected to slip draw piece 7, rear embedding them 71,72 groove section thin-walled horizontal plane district 63 forms the form that easy elasticity is inclined and stuck up, the graphic structure that discloses, be to offer a groove 64 in chute 62 rear ends in addition, but and make the thin-walled horizontal plane district 63 between chute 62 front end curved slot sections 621 and this rear end groove 64 become the shell fragment form that a limit elasticity is inclined and stuck up, so design, as shown in figure 11, when 52 pushing and pressing of card body are positioned at the inclined plane part 73 of the slip draw piece 7 on slippage seat surface 61 horizontal planes, the point of application that pushes against inclined plane parts 73 because of card body 52 is higher than slippage seat surface 61 horizontal planes, stressed slip draw piece 7 just has the gesture of inclination with respect to slippage seat surface 61 horizontal planes, under this situation, the thin-walled horizontal plane district 63 of sticking up promptly helps to slide and produces tilting action when draw piece 7 compresses relatively but above-mentioned elasticity is inclined, thereby helps the recess 74 that card body 52 pushes slip draw piece 7.

In addition, but incline on the mode of sticking up making these chute that is connected to slip draw piece 7 forward and backward embedding

71,72 62 1 side thin-walled horizontal plane districts 63 limit elasticity, as shown in figure 12, also can in this thin-walled horizontal plane district 63, form together saturating dead slot 65, and make the zone of edges abut chute 62 the compressing and relative tilt of draw piece 7 that more be subject to slide.

In sum, slide rail provided by the utility model retracts homing device automatically, its not only the structure design of overall space form have novelty, and the spy improves to some extent at the slip draw piece user mode under the NG situation, can reduce the spoilage of its relative configurations, effectively promote the service life of product, the enhancement effect is remarkable.

Claims

1. a slide rail retracts homing device automatically, slide rail overlaps sliding movable rail section by establishing sliding aiding elements in the retaining rail section, this retaining rail section end is provided with a drawing pedestal that is equipped with the slip draw piece on it, and movable rail section end should be provided with the card body by the slip draw piece relatively, it is characterized in that:

This drawing pedestal extends a slippage seat surface, form one chute on this slippage seat surface, chute extends a curved slot section towards the groove end of movable rail section pull-out direction, and be provided with a slip draw piece in the slippage seat surface, before this slip draw piece has at least, back two embedding pin, be butted in the above-mentioned chute to stretch, and before the slip draw piece, establish an elastic parts between embedding pin and the drawing pedestal rear side end and draw mutually, and slip draw piece one side forms an inclined plane part, its inclined plane part trailing edge forms a recess along connecing, and the profile of complying with this inclined plane part and recess forms a saturating dead slot hole in its slip draw piece body, and makes link to each other before and after the becoming spring-piece type form of slip draw piece body of inclined plane part and recess.

2. slide rail according to claim 1 retracts homing device automatically, it is characterized in that: the inclined plane part that this slip draw piece one side forms has suitable height.

3. slide rail according to claim 1 retracts homing device automatically, it is characterized in that: this slip base mask has the horizontal seat surface of chute to be set as a thin-walled form, but and the local groove section thin-walled horizontal plane district elasticity of its chute is inclined stick up.

4. slide rail according to claim 3 retracts homing device automatically, it is characterized in that: this runner rear end offers a groove, but and makes the thin-walled horizontal plane district between aforementioned curved slot section and this groove become the shell fragment form that a limit elasticity is inclined and stuck up.

5. slide rail according to claim 4 retracts homing device automatically, it is characterized in that: the edge side in abutting connection with chute in this thin-walled horizontal plane district is formed with together saturating dead slot.