CN100553527C - Drawer guide rail assembly - Google Patents

Abstract

A kind of guide rail assembly comprises supporting arrangement; Be installed on the supporting arrangement to pull out the fixed guide of track in the middle of receiving; Pull out track with respect to the centre of sliding before and after the fixed guide; Be connected on the drawer and pull out in the centre and pull out the outside of sliding before and after track and the fixed guide with respect to the centre on the track and pull out passage, the outside is pulled out passage and is had the protuberance of pulling out space in the track in the middle of stretching in its lower surface; Be pivoted on the lockout member on the intermediate orbit, lockout member comprises the first arm that extends forward and second arm that extends back, each arm ends at roller separately, roller makes lockout member along the operation of the upper surface of fixed guide, and the first arm comprises the elbow that limits bending, middle body is suitable for interacting with protuberance, with during assembly closure or openness actions, be locked in conversion synchronization member between second state on the central orbit intermediate orbit being locked in first state on the fixed guide and will pulling out guiding piece.

Description

Drawer guide rail assembly

Technical field

The present invention relates to a kind of guide rail assembly that is used for furniture industry, more especially relate to the guide rail assembly of the drawer that is used for slide-open and closure.

Drawer guide rail is parts used in everyday, for example is used for the drawer of desk or cabinet, is used for the electronic equipment etc. in the mechanical, electrical words switching station of automatic inquiry in the drawer type shelf, the cashier's machine in the supermarket, bank's inquiry booth in warehouse for example.

Background technology

Guide rail is provided with for the drawer of closure or openness partially or completely, and generally includes assembly is fixed on support on the piece of furniture, rack-mount trapped orbit, is connected to pulling out track and be preferably in fixing and pull out intermediate orbit between the track on the drawer side surface.Owing to be arranged in the slip roller stand of fixing and pulling out between the track, intermediate orbit is sliding on the trapped orbit and is pulling out track and slide on intermediate orbit.Slip roller stand range ability between the every pair of limit stop on each orbit element limits the range ability of each track usually.

But the slide unit (be intermediate orbit and pull out track) with guide rail of this typical construction causes usually with non-sortord and slides, and perhaps in other words, can not control and pull out the order that track and intermediate orbit slide.Usually, slip depends on that in proper order which slide unit on the guide rail assembly (intermediate orbit or pull out track) provides lower frictional resistance.Intermediate orbit and pull out that track all begins and slide simultaneously continuously equally, normally.For example, in typical rail assembly, outwards pull out so that open slightly at drawer, when promptly being not complete opening, intermediate orbit is usually along pulling out orbital motion.In this case, when drawer was pushed closure, intermediate orbit returned motion to drawer by extending, causes the limit stop of pulling out track and trapped orbit to impact mutually inevitably, and therefore causing does not need and undesirable noise.Usually in another situation that occurs in the typical orbit assembly, intermediate orbit causes when drawer is opened slightly sliding motion together.This undesirably causes intermediate orbit to be seen by the user.

Therefore, three parts (be trapped orbit, intermediate orbit and pull out track) of wishing the control guide rail assembly carry out relative order of sliding.Wherein these three track components are provided with such three track components in the past by the gear or the prior art drawer guide rail assembly that connects and forever connect mutually that rubs, usually make and the production cost height, and often break down easily and damage.

In order to overcome described problem, the prior art drawer slide guide rail system with track ordering mechanism discloses in US patent NO.5433517.The prior art system of US patent comprises fixedly the cabinet sliding part, guides on the cabinet sliding part and intermediate slider of sliding and the drawer slide part that guides on intermediate slider and slide via the roller that is installed on the intermediate orbit via the roller that is installed on the cabinet sliding part.The ordering mechanism of this prior art system comprise near and be arranged in the Connection Element on the intermediate slider front end and be arranged in cabinet and the drawer slide part on make it be arranged to the device that abuts of cooperating with Connection Element.

The Connection Element of this prior art systems is shaping, pivot snap-lock member, and locking component has a plurality of stop surfaces and extends and at one end limit the eyelet shape spring of reception recess from backstop.This Connection Element joint or " wedging " are near the opening of the front end of intermediate slider.The cabinet sliding part has pin, and when this prior art systems was used, pin can be wedged between locking component and the spring recess, engages thus and biasing spring.Be arranged in abutting device and can contact on the drawer slide part upper surface with the stop surface of locking component.

The Connection Element that slides through of three sliding parts of this prior art systems (cabinet, centre and drawer slide part) sorts, Connection Element is arranged on the intermediate slider, and between two end positions, pivot, thus intermediate slider is locked on cabinet or the drawer slide part selectively.The joint of cabinet slide pin that is positioned at the spring recess of locking component causes the bias voltage and the intermediate slider locking of eyelet shape spring and is anchored at fixedly on the cabinet sliding part.When the drawer slide part extends (drawer draws back), the surface that abuts the means for engaging locking component that protrudes upward, the pivot locking component, up to its unclamp with the engaging of pin till, that is, intermediate slider is unclamped from fixing cabinet sliding part.It is contemplated that (drawer closure) this process is put upside down when the drawer slide part is withdrawn.Basically, suitable contact or the joint between the recess of the elasticity of eyelet spring and cabinet slide pin and locking component depended in the slip of three sliding parts of this prior art systems ordering very much, and the joint that abuts device that protrudes upward of the stop surface of locking component and drawer slide part.

Because described structure and Connection Element are arranged with the interactional mode of sliding part, this is not the method for highly effective ordering sliding motion, particularly use very big or excessive try hard to recommend into or when pulling out drawer, perhaps when drawer carrying heavy load, eyelet shape spring is biased above its elastic limit in this case.Frequent for a long time, the lasting or use of exerting oneself also can cause connecting elements and intermediate slider to throw off.In addition, the structure of this prior art ordering mechanism also can cause the assembling of this drawer slide part system unwanted complexity that becomes, and needs the plenty of time.

Therefore the present invention is intended to eliminate some or all problem of prior art, and provides a kind of sliding guidance rail assembly, this assembly to have easy assembling and manufacturing, practicality, flexibly and the lockout member that can exert oneself and continue use.

Summary of the invention

According to one aspect of the invention, a kind of guide rail assembly is provided, this assembly have synchronous sliding motion in case in piece of furniture slide-open and closed drawer.This assembly comprises and is used for assembly is fixed on supporting arrangement on the piece of furniture; Be installed on the supporting arrangement so that pull out the fixed guide of track in the middle of receiving; Can pull out track with respect to the centre of sliding before and after the fixed guide; And be used to be connected on the drawer and can pull out in the centre on the track and pull out the outside of sliding before and after passage and the fixed guide with respect to described outside and pull out passage.The outside is pulled out passage and is had protuberance in lower surface, pull out space in the track in the middle of wherein protuberance stretches into, and lockout member is pivoted on the intermediate orbit.Lockout member comprises the first arm that extends forward that extends at rightabout roughly from the middle body that comprises pivotal point and second arm that extends back, and each arm ends at roller separately, and roller makes the upper surface operation of lockout member along fixed guide.The first arm comprises the bending that limits elbow, wherein middle body is applicable to protuberance and interacts, so that during assembly closure or openness actions, therein the elbow of the first arm engage fixed guide front end and with intermediate orbit be locked on the fixed guide first state and wherein middle body engage by protuberance so that will pull out guiding piece and be locked in conversion synchronization member between second state on the central orbit.

Among the embodiment in this regard, second arm that extends back of lockout member pivots around second pivotal point with respect to middle body, and is biased into the position that makes its terminal roller can contact the upper surface of fixed guide.Biasing device can comprise the strain part of dismountable spring or lockout member.

In another embodiment, the middle body of lockout member also comprises and stretches out the handle shape part, and this part can externally be pulled out on the lower surface of passage and be closed with vertical termination of protuberance.

In another embodiment, the front end of fixed guide also comprises the elastic buffer part, and this part engages under its first state by the first arm that extends forward.

According to another embodiment, the outside is pulled out protuberance on the lower surface of passage and is combined in the outside and pulls out on the passage.

According to an embodiment again, the outside is pulled out protuberance on the lower surface of passage and is also comprised and be positioned at each vertically lead-in chamfered on the end.

In preferred aspects of the invention, provide a kind of guide rail assembly, this assembly has synchronous sliding motion so that open slidably and closed drawer in piece of furniture.This assembly comprises and is used for assembly is fixed on supporting arrangement on the piece of furniture; Be installed on the supporting arrangement so that pull out the fixed guide of track in the middle of receiving, fixed guide has the protuberance on the upper surface that is positioned at described fixed guide, pulls out the space in the track in the middle of wherein protuberance stretches into; Can pull out track with respect to the centre of sliding before and after the fixed guide; And be used to be connected on the drawer and can pull out in the centre on the track and pull out the outside of sliding before and after track and the fixed guide with respect to described centre and pull out passage.Lockout member is pivoted on the intermediate orbit, and lockout member comprises second arm that extends forward that extends at rightabout roughly from the middle body that comprises pivotal point and the first arm that extends back.Each arm ends at roller separately, and roller makes lockout member pull out the lower surface operation of passage along the outside, and the first arm that extends back comprises the bending that limits elbow.Middle body is applicable to protuberance and interacts, so that during assembly closure or openness actions, therein the elbow of the first arm engage outside rear end of pulling out passage and with the outside pull out passage lock fix on the intermediate orbit first state and wherein middle body engage by protuberance so that intermediate orbit is locked in conversion synchronization member between second state on the fixed guide.

Among the embodiment in this regard, second arm that extends forward of lockout member pivots around second pivotal point with respect to middle body, and is biased into and makes its terminal roller can contact the position that the lower surface of passage is pulled out in the outside.Biasing device can comprise the strain part of dismountable spring or lockout member.

In another embodiment, the middle body of lockout member comprises also and stretches out the handle shape part that this part can be closed with vertical termination of protuberance on the upper surface of fixed guide.

In another embodiment, the rear end that guiding piece is pulled out in the outside also comprises the elastic buffer part, and this part engages under described first state by the first arm that extends back.

In another embodiment, the protuberance on the upper surface of fixed guide is combined on the fixed guide.

According to another embodiment, the protuberance on the upper surface of fixed guide comprises the lead-in chamfered that is positioned on each vertical end.

In the embodiment aspect two of the present invention, the centre is pulled out track and is had I shape vertical cross-section.

In another embodiment aspect two of the present invention, fixed guide and outside are pulled out passage and are also comprised travelling carriage separately, travelling carriage has a plurality of rollers, and roller makes intermediate orbit to slide on fixed guide, and feasible outside is pulled out passage and slided on intermediate orbit then.

Purpose with sliding guidance rail assembly of lockout member of the present invention is to provide a kind of structure, this structure cause sliding motion that the outside of slip pulls out passage and intermediate orbit on order effectively synchronously.From following paragraph, can understand, compare with prior-art devices, because the structure and the shape of lockout member of the present invention, can stablize effectively, control, guide and synchronously the outside pull out passage and the sliding motion of intermediate orbit in sizable surf zone, this is because the first arm and second arm of lockout member separate by the mid portion level, causes the interior at any given time big length across any orbit element of lockout member thus.Even when using excessive power or drawer to carry heavy load when pushing or pull out drawer, this structure of lockout member also makes it effective, and does not lose efficacy.

In addition, prevent that intermediate orbit " excessive slip " from reducing the efficient of guide rail assembly above required separation distance, and prevent to be seen by the user in the drawer front side sometimes.This is that in preferred one side, this assembly is anchored at intermediate orbit on the fixed guide, and in another aspect of this invention, is anchored at the outside and pulls out on the passage owing to " anchoring mechanism " that lockout member provided by this guide rail assembly.

Compare with prior-art devices, the shape of lockout member and structure also make it more firm, and this is because its major part has rigid construction, and fraction has flexible portion.When lockout member is pivoted on the intermediate orbit via first pivotal point of its middle body, lockout member is at its crushed element (biasing device on its second arm, be detachable spring or strain part) not gentle fully bent, and can comprise second pivotal point of the pivoting action that is used for its second arm.This obviously help to have this lockout member guide rail assembly long-time more, continue and firmly use, in fact its crucial synchronization section did not lose efficacy.

The crushed element of lockout member can be dismantled, and makes only to change this part under situation about in fact losing efficacy because biasing device is lost its elasticity capacity.Equally, this can be so that firm the first arm and middle body be made by the sturdy material of for example metal on the structure, and deformable second arm can be made by the elastomeric material of for example plastics or rubber, perhaps has dismountable spring.In this way, be combined with the guide rail assembly of this lockout member, do not lose the structural rigidity and the load efficiency of lockout member by use.

Guide rail assembly of the present invention is same easily by common user's assembling, and its assembling does not need special tool(s) or technical ability.In addition, because its simple relatively structure and assembling, this assembly manufacturing cost is cheap relatively.

Description of drawings

With reference to the accompanying drawings,, the present invention's (though not being restrictive) is described by the description of each embodiment, in the accompanying drawing:

Fig. 1 is illustrated in the drawer that has sliding guidance rail assembly of the present invention in the piece of furniture;

Fig. 2 represents the sectional view of the preferred embodiment of the present invention;

Fig. 3 represents the decomposition view of the parts of the preferred embodiment of the present invention;

Fig. 4 represents the lockout member of the preferred embodiment of the present invention;

The side view of the lockout member of Fig. 5 A-5C presentation graphs 4 when it is assembled;

Fig. 6 represents the lockout member of another embodiment of the present invention;

Fig. 7 represents the side view of the preferred embodiment of the present invention, and wherein drawer is at first in full open position and push complete closing position subsequently;

Fig. 8 is lockout member and an outside details of pulling out passage rear end joint shown in Figure 7;

Fig. 9 represents the side view of another embodiment of the present invention, and wherein drawer is at first in full open position and push complete closing position subsequently;

Figure 10 is the lockout member shown in Figure 9 and the details of fixed guide front end joint;

Figure 11 is a lockout member shown in Figure 6 in embodiments of the present invention and outside side view of pulling out the details that the passage rear end engages.

The specific embodiment

Fig. 1 represents the sliding guidance rail assembly, and this assembly has the lockout member on the every side of drawer of assembling and being connected to piece of furniture.The sliding guidance rail assembly comprises and is used for assembly is fixed on supporting arrangement 10 on the piece of furniture, is installed in that track 30 is pulled out in fixed guide 20, centre on the supporting arrangement 10 and passage 40 is pulled out in the outside that is fixed on the drawer side surface.Fixed guide 20 and outside are pulled out passage 40 and are had travelling carriage 70 separately in preferred aspects of the invention, travelling carriage has a plurality of rollers, roller makes intermediate orbit 30 slide in fixed guide 20, and the outside pulls out passage 40 and slide on intermediate orbit 30 then, as shown in Figure 2.In this embodiment, intermediate orbit 30 is I shapes, and has lockout member 50,60, and lockout member is connected on its central vertical web pivoting on a side of a side of the drawer that is connected with guide rail assembly.In a preferred embodiment, fixed guide 20 surface thereon has protuberance 21, and the outside passage 40 of pulling out has and is arranged on its rear end so that the buffer portion 43 that engages with lockout member 50,60.

Fig. 3 represents that supporting arrangement 10 is formed the roughly L shaped cross section that comprises vertical flanges and horizontal flanges by sheet metal.Vertical flanges have a plurality of holes in case be fixed on cabinet for example or the side that drawer or device wherein are installed of the piece of furniture of pallet on.The step edge also is formed on this vertical flanges, so that increase its rigidity.Similarly, breach is formed on the curved edge place in L shaped cross section, so that increase the rigidity and the bearing capacity of this supporting arrangement.The fixed guide 20 of this assembly is connected on the horizontal flanges of supporting arrangement 20.

Fixed guide 20 is formed the C tee section of opening by sheet metal.The backstop that comprises aduncate die-cut tab is formed on either side or the opposite side towards vertical end of this guiding piece.Being slidingly mounted in the fixed guide 20 is travelling carriage 70, and travelling carriage has roller, and wherein this travelling carriage is in even running on the roller in guiding piece between the backstop.The lower surface of fixed guide 20 is provided with the fastener (not shown), and fastener is applicable on the horizontal flanges that is installed in supporting arrangement.Has trapezoidal shape and each vertically has the protuberance 21 of lead-in chamfered on the end and is arranged on the upper surface towards the rear portion (with respect to the drawer orientation) of fixed guide 20 at it.This protuberance 21 can be made by any material, and pulls out the space in the track 30 in the middle of stretching into.In its operational movement, this protuberance also can be used as the holding device of guide rail assembly.

Intermediate orbit 30 forms roughly L shaped cross section by sheet metal, perhaps comprises two T shapes, and it has upper and lower horizontal flanges and vertical web.The curved edge of upper and lower horizontal flanges is positioned on phase the same side mutually, perhaps is positioned on the opposite side.Two pairs of backstops are formed on the surface, upper and lower of bottom and upper flange separately separatedly, and they also can comprise aduncate die-cut tab.Intermediate orbit 30 can be mounted to and not distinguish which end is forward.Equally, this track 30 can be provided with the also die-cut tab of unbent backstop, makes these tabs crooked on required direction in assembling or installation process.This allows this system to have flexibility at assembly process, and advantageously reduces the required number of components of stock.Intermediate orbit 30 also has lockout member 50,60, and lockout member is pivotally connected on a side of the vertical web of drawer one side that is connected with guide rail assembly.

Shown in Fig. 4-6, lockout member 50,60 comprise from middle body 53,63 in roughly opposite side the upwardly extending the first arm that extends back 51,61 and second arm 52,62 that extends forward.Each the first arm 51,61 and second arm 52,62 have end roller 51a, 52a separately; 61a, 62a, roller make lockout member 50,60 pull out the lower surface operation of passage 40 along the outside. Middle body 53,63 comprises pivotal point 53a, 63a, and in this pivot point, lockout member pivots via pin or analog and is connected on the sidepiece of intermediate orbit vertical web.Equally, middle body 53,63 is configured to have with respect to the first arm 51,61 profile of inclination, and be applicable to via what engage with the lead-in chamfered of vertical end of fixed guide protuberance 21 and stretch out handle shape part 53b, the protuberance 21 of 63b and fixed guide 20 interacts.The first arm 51,61 comprises elbow 51b, the 61b that limits the bending/distal arm part that engages with outside rear end of pulling out passage 40.Equally, the first arm 51,61 stretches out with respect to middle body 53,63. Second arm 52,62 preferably removably pivots and is connected to major part 53,63 around the second pivotal point 53c, 63c, and is biased into and makes its terminal roller 52a, 62a pull out the lower surface position contacting of passage 40 in use with the outside.In this biased position, end 52c, the 62c rounding of second arm 62,62 relative with its terminal roller, and close with vertical termination of fixed guide protuberance 21.Equally preferably biasing device comprises dismountable spring 52b, and spring makes second arm and middle body 53 flexibilities mesh and stretches out (about 20 °) from medium dip, shown in Fig. 5 A, 5B and 5C.But as selecting, as shown in Figure 6, second arm 62 can pivot via the second pivotal point 63c and be connected on the middle body 63 and be biased into similar position as implied above.Under this selectable situation, second arm 62 has strain part 62b, makes it keep required flex capability.

Passage 40 is formed opening by sheet metal C tee section is pulled out in the outside.Pulling out on the either side of passage 40 in this outside is two backstops, and backstop is arranged such that the vertical end location of each backstop towards guiding piece.These backstops comprise aduncate die-cut tab.L shaped extension 41 cuttings or be formed on this outside and pull out on the upper surface of passage.This extension engages with connector (not shown) on the drawer side surface, is fixed on the drawer so that passage is pulled out in this outside.Opening 42 is externally pulled out on the upper surface of passage in front end (with respect to the drawer orientation) punching out equally, so that engage with the buckle (not shown) at the place, front portion that is installed in drawer side surface.This make drawer and outside pull out passage 40 easily with removably be connected.What be slidingly mounted on that this outside pulls out channel interior is travelling carriage 70, and travelling carriage has roller, and wherein this travelling carriage is externally pulled out even running on its roller in the passage between backstop.In addition, this outside is pulled out passage 40 and is had elastic buffer part 43 in its back-end, and this part engages by the first arm that extends back 51,61 (for example its terminal roller 52a) of lockout member 50,60.Buffer portion 43 can be made by the elastomeric material of any kind, and the noise that produces when engaging therein of the first arm 51,61 that is used for cushioning or eliminate lockout member 50,60.

Fixed guide 20 and outside travelling carriage 70 of pulling out passage 40 have similar structure and comprise long member, and this member has the essentially rectangular cross section, and this cross section has the hollow central recess of opening T shape.Roller is arranged on the top and the place, both sides of T shape.The distance of sidepiece roller vertical movement is substantially equal to the thickness of the vertical web of intermediate orbit 30.The quantity of roller, type (no matter being top or side roller) and structure depend on the load capacity that travelling carriage is designed.The other side roller (not shown) that the side direction guiding is provided for drawer/device in addition also can be set, wherein when these rollers separate as far as possible, provide bigger lateral stability.The opening T shape recess of intermediate orbit travelling carriage makes intermediate orbit slide on fixed guide, and the lower flange of its middle orbit is installed wherein slidably.Similarly, the opening T shape recess that the passage travelling carriage is pulled out in the outside makes the outside pull out passage and slides on intermediate orbit, its middle orbit upper flange install wherein slidably.Enough gaps are arranged on separately between the contact surface, so that aim at and/or assembling of upper and lower flange of top roller and intermediate orbit.Similarly, enough gap is arranged between the contact surface of vertical web of side roller and intermediate orbit.

In use, shown in Fig. 7 and 8, when drawer from complete closure or when fully extended position pulls out or be pushed in the piece of furniture, the guide rail assembly with layout lockout member wherein provides synchronous sliding motion, makes intermediate orbit 30 and outside pull out passage 40 and slides mutually with sortord.When drawer during at complete extended position, the rear end that passage 40 is pulled out in elbow 51b, the 61b that the lockout member 50,60 of intermediate orbit 30 is in the first arm 51,61 that wherein extends back and outside engages and passage lock is pulled out in the outside and fixes on first state on the intermediate orbit 30.In other words, during at this first state, the sliding motion of intermediate orbit 30 is expressed as and outside synchronized movement of pulling out passage 40 in lockout member 50,60.When drawer inwardly promoted, the outside was pulled out passage 40 and is slided towards the rear portion of piece of furniture with respect to fixed guide 20 with the intermediate orbit 30 that locks on it.The outside that locks together of sliding pull out vertical side directed inclined-plane that passage and intermediate orbit arrive the upper surface protuberance 21 of fixed guide 20 become second arm 52,62 pivot be connected to that position (rounding end 52c, the 62c of the second pivotal point 53c, 63c and second arm 52,62) on the middle body 53,63 at first engages with lockout member 50,60 and subsequently with the handle 53b of the middle body 53,63 of lockout member 50,60, the position that 63b engages.Lockout member 50,60 converts wherein elbow 51b, the 61b and outside second state that throw off the rear end and middle body 53,63 engages with fixed guide protuberance 21 of pulling out passage 40 of the first arm 51,61 thus to.Under second state of lockout member 50,60, intermediate orbit 30 locking or " fixedly anchoring " are on fixed guide 20, and the while outside is pulled out passage 40 and continued to slide backward, till the travelling carriage 70 of pulling out passage 40 up to the outside abuts its limit stop.

When drawer during in complete closing position, lockout member 50,60 is in the middle body 53,63 by the lockout member 50,60 that engages with the upper surface protuberance 21 of fixed guide 20 of intermediate orbit 30 wherein and is anchored on the fixed guide 20.When drawer when piece of furniture is outwards pulled out, the outside pull out passage 40 cause with respect to fixedly locked together intermediate orbit and fixed guide to front slide.When passage 40 is pulled out when arriving its rear end wherein and becoming with the first arm elbow 51b of lockout member 50,60, position that 61b engages in the outside of sliding, at first handle 53b, the 63b on the middle body 53,63 and pivot joint portion (rounding end 52c, the 62c of the second pivotal point 53c, 63c and second arm 52,62) and 21 disengagements of fixed guide protuberance on the middle body 53,63 that is connected to lockout member of second arm 52,62 subsequently.Therefore, intermediate orbit 30 no longer locks together with fixed guide 20, and is free to slide motion.Lockout member 50,60 can be described as first state that wherein the first arm elbow 51b, 61b engage with outside rear end of pulling out passage 40 that is transformed into now.In other words, intermediate orbit 30 restriction and outside pull out that passage 40 locks together and with pull out track together to front slide.

The middle body 53,63 and the upper surface fixed guide protuberance 21 that can be pointed out that lockout member 50,60 interact, so that during the unlatching of guide rail assembly and closed action, lockout member is transformed into second state from first state, and vice versa.

In another embodiment shown in Fig. 9 and 10, pull out passage 40 except the outside and on its lower surface, have protuberance 44, and fixed guide 20 have arrange on its front end in case with buffer portion 22 that lockout member 50,60 engages outside, the structure of guide rail assembly and be connected to piece of furniture and drawer on mode and described preferred embodiment similar.

In this embodiment, each vertically is arranged on the lower surface protuberance 44 of end with trapezoidal shape of lead-in chamfered the front portion (with respect to the drawer orientation) of pulling out passage 44 towards the outside at it.Once more, this protuberance 44 can be made by any material, and pulls out the space in the track 30 in the middle of stretching into, and can be used as the holding device of guide rail assembly during its operational motion.

Equally, the front end of fixed guide 20 is arranged to have the elastic buffer part 22 by the first arm 51,61 joints of lockout member 50,60.Moreover buffer portion 22 can be made by the elastomeric material of any kind, and is used for cushioning or eliminating the noise that is produced when the first arm 51,61 of lockout member 50,60 engages therein.

The structure and the preferred embodiment of the lockout member 50,60 of this embodiment are similar, and same the pivot is connected on the vertical web side of the intermediate orbit 30 of drawer one side that is connected with guide rail assembly.Difference among this embodiment is that lockout member 50,60 to be connected to pivotal point 53a, the 63a orientation on the intermediate orbit 30, make the first arm 51,61 extend forward now, and second arm 52,62 extends back.Therefore, terminal roller 51a, 52a, 61a, the 62a on each the first arm 51,61 and second arm 52,62 makes lockout member 50,60 along the operation of the upper surface of fixed guide 20 now.Here, the middle body 53,63 of lockout member 50,60 is applicable to via it and stretches out handle shape part 53b, 63b and outside protuberance 44 interactions of pulling out passage 40.This middle body handle 53b, 63b obviously become now with outside lead-in chamfered of pulling out vertical end of passage protuberance 44 and engage.Elbow 51b, the 61b that extends the first arm 51,61 forward preferably around the second pivotal point 53c, 63c removably pivot be connected on the middle body 53,63 and be biased into make its terminal roller 52a, 62a can with the upper surface position contacting of fixed guide 20.Can imagine any described biasing device in this embodiment, referring to it can be dismountable spring 52b, and perhaps second arm comprises its strain part 62b.

In use, when drawer from complete closure or when fully extended position pulls out or be pushed in the piece of furniture, guide rail assembly with lockout member 50,60 of this embodiment provides synchronous sliding motion, makes intermediate orbit 30 and outside pull out passage 40 and slides mutually with sortord.When drawer during at complete extended position, elbow 51b, the 61b that the lockout member 50,60 of intermediate orbit 30 is in the first arm 51,61 that wherein extends forward engages with the front end of rail guide 20 and intermediate orbit 30 is locked in first state on the rail guide 20.In other words, during at this first state, intermediate orbit 30 lockings or " fixedly anchoring " are on fixed guide 20 in lockout member 50,60.When drawer inwardly promoted, the outside was pulled out passage 40 and is slided towards the rear portion of piece of furniture with respect to intermediate orbit that locks together and fixed guide.Outsidely pull out vertical end lead-in chamfered that passage 40 arrives its lower surface protuberances 44 and become to pivot at second arm 52,62 and be connected to position (rounding end 52c, the 62c of the second pivotal point 53c, 63c and second arm 52,62) on the middle body 53,63 when engaging with the joint portion when sliding, elbow 51b, the 61b that lockout member converts the first arm 51,61 wherein to is with the front end disengagement of fixed guide 20 and middle body is present and second state that passage protuberance 44 engages is pulled out in the outside.Under second state of lockout member, intermediate orbit 30 is free to slide motion, and and the outside pull out passage 40 and lock together, make its sliding motion and outside synchronized movement of pulling out passage.

When drawer during in complete closing position, lockout member 50,60 is in intermediate orbit 30 wherein and pulls out on the passage 40 by being locked in the outside with middle body 53,63 that the lockout member that the lower surface protuberance 44 of passage engages is pulled out in the outside.When drawer when piece of furniture is outwards pulled out, the outside that locks together pulls out passage and intermediate orbit causes with respect to fixed guide 20 to front slide.When passage and intermediate orbit are pulled out when arriving the first arm elbow 51b of lockout member 50,60 wherein, 61b becomes with the front end of fixed guide 20 engages position in the outside of sliding, 44 disengagements of passage protuberance are pulled out with the outside in the joint portion (rounding end 52c, the 62c of the second pivotal point 53c, 63c and second arm 52,62) that second arm 52,62 pivots on the middle body 53,63 that is connected to lockout member 50,60.Therefore, intermediate orbit 30 is no longer pulled out passage 40 with the outside and is locked together, but now fixedly is anchored on the fixed guide 20.In other words, lockout member 50,60 is transformed into first state that wherein the first arm elbow 51b, 61b engage with the front end of fixed guide 20 now.When drawer is further pulled out, till it extended fully, passage 40 continuation were pulled out to front slide in the outside, and irrelevant with fixing intermediate orbit 30, till its travelling carriage 70 abuts its limit stop.

The middle body 53,63 and the outside lower surface protuberance 44 of pulling out passage 40 that can be pointed out that lockout member 50,60 interact, so that during the unlatching of guide rail assembly and closed action, lockout member 50,60 is transformed into second state from first state, and vice versa.

For Fig. 2,3,7 and 8 preferred embodiment, having wherein in lockout member 50, second arm 52 has under the situation of dismountable spring 52b as the preferable configuration of biasing device, when the rear end of passage 40 is pulled out in the first arm elbow 51b joint outside, the outside elastic buffer part 43 of pulling out passage 40 of terminal roller 51a contact of the first arm 51 that extends back.Lockout member 60 have wherein second arm have strain part 62b as the situation of selecting to construct of biasing device under (shown in Figure 11), when the passage rear end is pulled out in the first arm elbow 61b joint outside, the terminal roller 61a of the first arm 61 does not contact the buffer portion 43 that passage 40 is pulled out in the outside, leaves the rear end that passage 40 is pulled out in the outside but cause.

In the embodiment of Fig. 9 and 10, when using preferred lockout member 50, when the first arm elbow 51b engaged the front end of fixed guide 20, the terminal roller 51a of the first arm 51 of Yan Shening contacted the elastic buffer part 22 of fixed guide 20 forward.Moreover when using selectable lockout member 60, when the first arm elbow 61b engaged the front end of fixed guide 20, the terminal roller 61a of the first arm 61 did not contact the buffer portion 22 of fixed guide, but leaves the front end of fixed guide.

In all embodiment with elastic buffer part 22,43, the latter's function is the impact between the respective front ends of buffer bent arm between joint aging time 51,61 and fixed guide 20 or outside rear end of pulling out passage 40, reduces the noise that is produced thus.

What those of ordinary skills will understand easily is that the present invention can other specific forms make, and does not depart from its scope or principal character.Therefore embodiments of the invention think to be exemplary, and implication without limits, scope of the present invention is shown by claim, rather than above description, and all modification that come from wherein will comprise within the scope of the invention.

Claims (18)

1. guide rail assembly, this assembly have synchronous sliding motion in case in piece of furniture slide-open and closed drawer, this assembly comprises and is used for described assembly is fixed on supporting arrangement (10) on the piece of furniture; Be installed on the described supporting arrangement so that pull out the fixed guide (20) of track (30) in the middle of receiving; Can pull out track (30) with respect to the centre of sliding before and after the described fixed guide; Be used to be connected on the drawer and can pull out in described centre on the track and pull out the outside of sliding before and after track and the described fixed guide with respect to described centre and pull out passage (40), the outside is pulled out passage and is pulled out the channel bottom surface in described outside and have protuberance (44), and wherein said protuberance stretches into described centre and pulls out space in the track; Be pivoted on the lockout member (50 on the intermediate orbit, 60), lockout member comprises the first arm (51 that extends forward, 61) and second arm (52 that extends back, 62), the described the first arm (51 that extends forward, 61) and second arm (52 that extends back, 62) from comprising pivotal point (53a, middle body (53 63a), 63) roughly extending on the rightabout, each described arm ends at roller (51a separately, 52a, 61a, 62a), roller makes lockout member along the operation of the upper surface of fixed guide, and the first arm (51) comprises the elbow that limits bending, wherein said middle body (53,63) be applicable to described protuberance (44) and interact, so that during assembly closure or openness actions, therein the elbow of the first arm engage fixed guide front end and with intermediate orbit be locked on the fixed guide first state and wherein middle body engage by described protuberance so that will pull out guiding piece and be locked in conversion synchronization member between second state on the central orbit.

2. guide rail assembly as claimed in claim 1, it is characterized in that, second arm that extends back (52,62) of described lockout member (50,60) pivots around second pivotal point (53c, 63c) with respect to middle body (53,63), and is biased into the position that makes its terminal roller (52a, 62a) can contact the upper surface of fixed guide (20) by biasing device.

3. guide rail assembly as claimed in claim 2 is characterized in that, described biasing device comprises dismountable spring (52b).

4. guide rail assembly as claimed in claim 2 is characterized in that, described biasing device comprises the strain part (62b) of lockout member (60).

5. guide rail assembly as claimed in claim 1, it is characterized in that, the middle body (53,63) of lockout member (50,60) also comprises and stretches out handle shape part (53b, 63b), and this stretches out the handle shape part and can externally pull out on the lower surface of passage (40) and close with vertical termination of protuberance (44).

6. guide rail assembly as claimed in claim 1 is characterized in that, the front end of fixed guide (20) also comprises elastic buffer part (22), and this elastic buffer partly engages under its first state by the first arm (51,61) that extends forward.

7. guide rail assembly as claimed in claim 1 is characterized in that, the outside is pulled out protuberance (44) on the lower surface of passage (40) and is combined in the outside and pulls out on the passage.

8. guide rail assembly as claimed in claim 1 is characterized in that, the outside is pulled out protuberance (44) on the lower surface of passage (40) and also comprised and be positioned at each vertically lead-in chamfered on the end.

9. guide rail assembly, this assembly have synchronous sliding motion so that open slidably and closed drawer in piece of furniture, this assembly comprises and is used for described assembly is fixed on supporting arrangement (10) on the piece of furniture; Be installed on the described supporting arrangement so that pull out the fixed guide (20) of track (30) in the middle of receiving, fixed guide has the protuberance (21) on the upper surface that is positioned at described fixed guide, and wherein protuberance stretches into described centre and pulls out space in the track; Can pull out track with respect to the centre of sliding before and after the described fixed guide; Be used to be connected on the drawer and can pull out in the centre on the track and pull out the outside of sliding before and after track and the fixed guide with respect to described centre and pull out passage (40); Be pivoted on the lockout member (50 on the intermediate orbit, 60), lockout member comprises second arm (52 that extends forward, 62) and the first arm (51 that extends back, 61), second arm (52 that this extends forward, 62) and the first arm (51 that extends back, 61) from comprising pivotal point (53a, middle body (53 63a), 63) roughly extending on the rightabout, each described arm ends at roller (51a separately, 52a, 61a, 62a), roller makes lockout member pull out the lower surface operation of passage (40) along the outside, and the first arm (51 that extends back, 61) comprise the elbow (51b that limits bending, 61b), wherein said middle body is applicable to described outstanding (21) portion and interacts, so that during assembly closure or openness actions, therein the elbow of the first arm engage outside rear end of pulling out passage and with the outside pull out passage lock fix on the intermediate orbit first state and wherein middle body engage by protuberance so that intermediate orbit is locked in conversion synchronization member between second state on the fixed guide.

10. guide rail assembly as claimed in claim 9, it is characterized in that, second arm (52,62) that extends forward of described lockout member (50,60) pivots around second pivotal point (53c, 63c) with respect to middle body (53,63), and is biased into by biasing device and makes its terminal roller (52a, 62a) can contact the position that the lower surface of passage (40) is pulled out in the outside.

11. guide rail assembly as claimed in claim 10 is characterized in that, described biasing device comprises dismountable spring (52b).

12. guide rail assembly as claimed in claim 9 is characterized in that, described biasing device comprises the strain part (62b) of lockout member (60).

13. guide rail assembly as claimed in claim 9, it is characterized in that, the middle body (53,63) of lockout member (50,60) comprises also and stretches out handle shape part (53b, 63b) that this stretches out the handle shape part and can close with vertical termination of protuberance (21) on the upper surface of fixed guide (20).

14. guide rail assembly as claimed in claim 9 is characterized in that, the rear end that passage (40) is pulled out in the outside also comprises elastic buffer part (43), and this elastic buffer part engages under its first state by the first arm (51,61) that extends back.

15. guide rail assembly as claimed in claim 9 is characterized in that, the protuberance (21) on the upper surface of fixed guide (20) is combined on the fixed guide.

16. guide rail assembly as claimed in claim 9 is characterized in that, the protuberance (21) on the upper surface of fixed guide (20) also comprises the lead-in chamfered that is positioned on each vertical end.

17., it is characterized in that the centre is pulled out track (30) and had I shape vertical cross-section as claim 1 or 9 described guide rail assemblies.

18. as claim 1 or 9 described guide rail assemblies, it is characterized in that, fixed guide (20) and outside are pulled out passage (40) and are also comprised travelling carriage (70) separately, travelling carriage has a plurality of rollers, roller makes intermediate orbit (30) to slide on fixed guide, and feasible outside is pulled out passage and slided on intermediate orbit then.

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