CN101803831B

CN101803831B - Drawer buffer

Info

Publication number: CN101803831B
Application number: CN200910037222XA
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-17
Filing date: 2009-02-17
Publication date: 2011-10-19
Anticipated expiration: 2029-02-17
Also published as: CN101803831A

Abstract

The invention relates to a drawer buffer, belonging to the field of furniture. The drawer buffer comprises a damper, a bracket, a sliding block, a spring and a shifting needle, wherein a damper bin and a spring bin are arranged at the back part of the bracket, a guide groove is arranged at the front part of the bracket, and hems are formed on two groove walls of the guide groove; the sliding block has two-stage different widths along the thickness direction, the width of the lower part of the sliding block is matched with the width of the guide groove of the bracket, and the width of the upper part of the sliding block is matched with the opposite distance between two hems; the sliding block is provided with a C-shaped gap, a spring hook, a shifting fork and a bayonet, the sliding block is arranged in the guide groove of the bracket, the damper is fixed on the damper bin of the bracket, and a piston rod of the damper is connected with the C-shaped gap of the sliding block; the spring is arranged in the spring bin, one end of the spring is connected with the bracket, and the other end of the spring is connected with the spring hooks of the sliding block; and one end of the shifting needle is fixed on a movable rail of drawer guide rails, and the other end of the shifting needle is movably connected with the shifting fork of the sliding block. The drawer buffer has compact structure and simple and convenient installation, enables a drawer to have good buffering effect, smoothness and safety in the closing process, and is suitable for all furniture with drawers.

Description

Drawer buffer

Technical field

The invention belongs to field of furniture, especially a kind of drawer buffer that is installed on the drawer.

Background technology

The drawer that guide rail has been installed drags very suitable cunning, produce bump when closing and send sound for fear of drawer, the all additional in addition buffer of having installed of great majority, (publication number is CN2790287 to be called the patent of guide rail safety buffer as name, open day is on June 28th, 2006), it comprises tooth bar and unidirectional damping device, and the unidirectional damping device comprises damping fin, sealing ring and the gear of drain pan, mesochite, top shell, the damping box with protruding axle, damping lid, band axis; The all corresponding slotted hole with long and short axle that has of drain pan and top shell has through hole on the damping fin, damping fin is installed in the damping box, in the damping box damping oil is housed; The damping lid covers on the damping box, and it is affixed with bore that the axis of damping fin passes the part of damping box, and the tip of the axis pierces in the slotted hole of top shell in the damping fin; On the excircle of damping box tooth is arranged, the protruding axle of damping box is coaxial with the axis of damping fin, and the protruding axle of damping box pierces in the slotted hole of drain pan; The inwall of mesochite has brake tooth along a side of the long axis direction of slotted hole; The wheel and rack engagement.This invention pushes inward the good damping of fashionable generation at drawer, drawer is clapped close to such an extent that do not have a sound.But its complex structure also will be provided with a long tooth bar, and the space that accounts for is bigger, the required precision height when making buffer seem not compact and installation tooth bar.

Summary of the invention

The drawer buffer that the purpose of this invention is to provide a kind of compact conformation, simple installation, good buffer effect.

The present invention includes damper; It is characterized in that it also has support, slide block, spring and dials pin; Support is fixed on the retaining rail of drawer guideway, and there are damper storehouse arranged side by side and spring storehouse in the support rear portion, and there is guide groove the front portion of support, the flanging that turns in having on guide groove two cell walls; Slide block has the different width of two-stage along thickness direction, and the guide groove height of the thickness of slide block bottom and support is adaptive, and the distance in opposite directions of two flangings of the width on slide block top and guide groove is adaptive; There are C v notch v and carbine in the rear portion of slide block, there is shift fork in the place ahead that slide block is positioned at the C v notch v, and slide block has bayonet socket and carbine at the opposite side of shift fork, and slide block is placed in the guide groove of support, damper is fixed on the damper storehouse of support, and the piston rod of damper is connected with the C v notch v of slide block; Spring is placed in the spring storehouse, and an end of spring is connected with support, and the other end is connected with the carbine of slide block; An end of dialling pin is fixed on the movable rail of drawer guideway, dials the other end of pin and the shift fork of slide block and flexibly connects.

Further improve as the present invention, the end of one of them cell wall of guide groove has protuberance, and the shape of the shape of this protuberance and described slide block upper latch notch is adaptive.

Further improve as the present invention, the slide block top also has the elastic recoil hook.

As another improvement of the present invention, spring is extension spring, the neck that the one head has diameter to shrink.

The present invention is like this work: dial and follow drawer under the movable rail that pin is installed in drawer guideway and move together, damper, slide block and spring all are contained on the support, support is installed on the retaining rail, dialling pin connects or separates with slide block according to the different stages in moving process: dial pin in the last stage that drawer is pulled out and be connected with slide block, damper resets and does not produce additional drag, the spring energy storage that is stretched; Dial pin disengaging slide block at the after-stage that drawer is pulled out, dial pin and drawer and move freely along movable rail.In the last stage that drawer pushes back, dial pin and drawer and move freely along movable rail; At the after-stage that drawer pushes back, dial pin and be connected with slide block again, trigger spring and discharge potential energy, damper is devoted oneself to work, and drawer is clapped lentamente under the spring force traction and is closed.

Buffering effect of the present invention is strong, and operating handle is good, the integrated level height, and compact conformation is installed easily, and the furniture that is fit to all band drawers uses.

Description of drawings

The present invention is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is that the embodiment of the invention is installed in the outside drawing on the three joint drawer guideways;

Fig. 2 is the outside drawing that Fig. 1 removes movable rail;

Fig. 3 is the parts explosion of Fig. 1;

Fig. 4 is the outside drawing of embodiment support;

Fig. 5 is the vertical view of embodiment support;

Fig. 6 is that the A-A of Fig. 5 is to view;

Fig. 7 is the upward view of embodiment support;

Fig. 8 is the D portion enlarged diagram of Fig. 5;

Fig. 9 is the outside drawing of embodiment slide block;

Figure 10 is the upward view of embodiment slide block;

Figure 11 is the front view of embodiment slide block;

Figure 12 is the left view of embodiment slide block;

Figure 13 is the outside drawing that embodiment dials pin;

Figure 14 is the outside drawing of embodiment damper;

Figure 15 is the outside drawing of embodiment spring;

Figure 16 is the outside drawing of embodiment;

Figure 17 is the B-B profile of Figure 15;

Figure 18 is the C-C profile of Figure 15;

Figure 19 is that drawer is dialled the buffer state schematic diagram that pin engages with slide block in off position the time

Figure 20 is the buffer state schematic diagram of drawer when in the stage of pulling out spring being carried out energy storage;

The buffer state schematic diagram of Figure 21 when to be drawer in the stage of pulling out dial pin and separate with slide block.

The specific embodiment

Referring to Fig. 1 to Fig. 3, among the embodiment drawer buffer of the present invention is installed on the tradition three joint drawer guideways, this three joints guide rail has retaining rail 20, mid-rail 21 and movable rail 22, movable rail 22 has the first steel ball retainer 23 and steel ball (not shown) with mid-rail 21, and the second steel ball retainer 24 and steel ball (not shown) are arranged between mid-rail 21 and the retaining rail 20; Retaining rail 20 1 ends are equipped with scotch 28, and fast-assembling contiguous block 29 is equipped with in movable rail 22 bottoms.Drawer buffer of the present invention comprises damper 19, support 1, slide block 2, spring 3 and dials pin 4.

Referring to Fig. 4 to Fig. 8, support 1 is made of plastic, is shaped on the spring storehouse 6 and the damper storehouse 5 that are parallel to each other on it, is respectively applied for to lay spring 3 and fixing damper 19; 6 belows, spring storehouse are shaped on bellmouth; Be shaped on the shoulder groove in the damper storehouse 5 and be used to locate damper 19.There is guide groove 7 front portion of support 1, the cell wall 13 on the right of guide groove 7 is shorter than the cell wall 13 on the left side, the flanging 8 that turns in all being shaped on the guide groove 7 both sides cell walls 13, bottom land 25, two cell walls 13 and two flangings 8 of guide groove 7 make guide groove 7 have cross section as " protruding " font, the end of guide groove 7 one of them cell wall 13 has protuberance 32, and the shape of the shape of this protuberance 32 and slide block upper latch notch 10 is adaptive.Support 1 head has a locating hole 26, and support 1 afterbody has two card bases 27, and locating hole 26 and card base 27 are used to make support 1 accurately to be fixedly mounted in retaining rail 20.In addition, crashproof 16 of two S shape arranged in the both sides of support 1, when drawer push back be about to clap fashionable, two crashproof 16 of S shapes can absorb drawer through in the bump that transmits of rail and eliminate sound.

Referring to Fig. 9 to Figure 12, slide block is made of plastic, and slide block 2 has the different width of two-stage along thickness direction, and the height of the thickness of slide block 2 bottoms and the guide groove 7 of support 1 is adaptive, and the distance in opposite directions of the width of slide block 2 upper boss 30 and two flangings 8 of guide groove 7 is adaptive; There are C v notch v 9 and carbine 12 in the rear portion of slide block 2, and there is shift fork 11 in the place ahead that slide block 2 is positioned at C v notch v 9, and the opening direction of shift fork 11 deviates from the opening direction of being partial to guide groove 7 perpendicular to the direction of the cell wall 13 of guide groove 7 a little; Slide block 2 has bayonet socket 10 and carbine 12 at the opposite side of shift fork 11; The below of slide block 2 also is shaped on an elastic recoil hook 15.

Referring to Figure 13, dialling pin 4 is one section round steel, and the prong width of the shift fork 11 of its diameter and slide block 2 is adaptive, and its one vertically is welded on movable rail rear end, and the prong of the shift fork 11 of slide block 2 is inserted in the other end.

Referring to Figure 14, damper 19 has piston, piston rod 14 and damper connector 31.

Referring to Figure 15, spring 3 is screwed pipe extension springs, and the neck 17 that its rear end has diameter to shrink is convenient to be inlaid on the support, and its front end has clasp 18, is convenient to buckle on slide block.

Referring to Figure 16 to Figure 18, damper 19 is fixed in the damper storehouse 5 of support 1, and damper 19 is connected to the C v notch v at slide block 2 rear portions by damper connector 31; Spring 3 is installed in the spring storehouse 6 of support 1, and an end of spring 3 is connected with support, and the other end is connected with slide block 2; Slide block 2 is placed in the guide groove 7 of support 1, the upper boss 30 of slide block 2 is retrained by the flanging 8 of guide groove 7 slide block 2 can be moved forward and backward along guide groove 7, after the boss 30 of slide block 2 shifted out short cell wall 13 of support 1, slide block 2 can be done counterclockwise deflection under the deflection torque effect of spring 3.

Referring to Figure 19, drawer is in closed condition, and the piston of damper 19 and piston rod fully move into the rear portion of damper 19, and spring 3 fully shrinks, and the shift fork 11 of slide block 2 surrounds group pin 4 that is welded under the movable rail (not shown).

Referring to Figure 20, drawer is stressed outwards to be moved, dialling pin 4 follows drawer and moves down, owing to being installed on the retaining rail 20, support 1 rests on the original place, so the shift fork 11 of slide block 2 is dragged by group pin 4 slide block 2 is moved to the lower end of guide groove 7, the piston rod 14 of damper 19 is drawn out of, spring 3 energy storage that is stretched.

Referring to Figure 21, drawer continues stressed outwards mobile, and slide block 2 continues to move down, after the boss 30 of slide block 2 shifts out the short cell wall 13 in support 1 the right, slide block 2 is done counterclockwise deflection under the deflection torque effect of spring 3, the slide block 2 right-hand bayonet sockets 10 are stuck in protuberance 32 places of cell wall 13 ends; The deflection of slide block 2 discharges shift fork 11 and dials pin 4, dials pin 4 and pulls out fully along with drawer and movable rail continue to move down up to drawer.At this moment, slide block 2 pins at deflection state, and spring 3 is fully stretched.

When drawer is pushed back, dial the back yoke that pin 4 at first enters shift fork 11 scopes and bump shift fork 11, then make slide block 2 remove deflection, shift fork 11 is clamped again and is dialled pin 4, sets aside pin 4, movable rail and whole drawer in the pulling force effect of spring 3 and is pulled to clap and closes the position, in this process, the piston of damper 19 is forced to the cylinder rear portion and is moved, compressed gas gas in the jar when piston moves, the translational speed of having slowed down drawer steadily and is snugly closed drawer fully.

Under following two kinds of situations, slide block 2 may be in the state that does not have deflection: 1. the erection stage 2. of the product shift fork 11 that touched slide block 2 when whole drawer is taken out causes slide block 2 to reset.When pushing back drawer inside in the case, dial pin 4 at first with elastic recoil hook 15 collisions of slide block 2, elastic recoil hook 15 forces the stage casing flexural deformation to the right of whole slide block 2, passes through thereby dodge group pin 4, makes group pin 4 rebulid correct the connection with the shift fork 11 of slide block 2.

Claims

1. drawer buffer, it comprises damper; It is characterized in that: it also has support (1), slide block (2), spring (3) and dials pin (4); Described support (1) is fixed on the retaining rail (20) of drawer guideway, and there are damper storehouse (5) arranged side by side and spring storehouse (6) in support (1) rear portion, and there is guide groove (7) front portion of support (1), the flanging (8) that turns in having on guide groove (7) two cell walls (13); Slide block (2) has the different width of two-stage along thickness direction, and the thickness of slide block (2) bottom and the guide groove (7) of support (1) are highly adaptive, and the distance in opposite directions of the width on slide block (2) top and two flangings (8) of guide groove (7) is adaptive; There are C v notch v (9) and carbine (12) in the rear portion of slide block (2), there is shift fork (11) in the place ahead that slide block (2) is positioned at C v notch v (9), slide block (2) has bayonet socket (10) and carbine (12) at the opposite side of shift fork (11), slide block (2) is placed in the guide groove (7) of support (1), damper is fixed on the damper storehouse (5) of support (1), and the piston rod of damper (14) is connected with the C v notch v (9) of slide block (2); Spring (3) is placed in the spring storehouse (6), and an end of spring (3) is connected with support (1), and the other end is connected with the carbine (12) of slide block (2); One end of described group of pin (4) is fixed on the movable rail (22) of drawer guideway, dials the other end of pin (4) and the shift fork (11) of slide block (2) and flexibly connects.

2. according to the described drawer buffer of claim 1, it is characterized in that: the end of one of them cell wall of described guide groove (7) (13) has protuberance (32), and the shape of shape of this protuberance (32) and described slide block (2) upper latch notch (10) is adaptive.

3. according to the described drawer buffer of claim 1, it is characterized in that: described slide block (2) top also has elastic recoil hook (15).

4. according to the described drawer buffer of claim 1, it is characterized in that: there is crashproof of S shape (16) both sides of described support (1).

5. according to the described drawer buffer of claim 1, it is characterized in that: described spring (3) is extension spring, the neck (17) that the one head has diameter to shrink, and there is clasp (18) other end.