CN101810404A

CN101810404A - drawer buffer

Info

Publication number: CN101810404A
Application number: CN200910037293A
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-20
Filing date: 2009-02-20
Publication date: 2010-08-25
Anticipated expiration: 2029-02-20
Also published as: CN101810404B

Abstract

The invention relates to a drawer buffer which belongs to the field of furniture. The drawer buffer comprises a damper and is characterized by comprising a supporting frame, a sliding block, a spring and a handsetting, wherein the rear part of the supporting frame is provided with a damper bin and a spring bin which are arranged in parallel; the front part of the supporting frame is provided with a guide groove and a guide rail; the sliding block is approximately in a triangle shape; the bottom of the sliding block is provided with a C-shaped notch; the side surface of the sliding block is provided with a bayonet, a shifting fork and a spring hook; the back surface of the sliding block is provided with two convex columns and arranged inside the supporting frame; the two convex columns of the sliding block are embedded in the guide groove of the supporting frame; the bayonet of the sliding block is fastened on the guide rail of the supporting frame; the damper is installed on the supporting frame; a connecting rod of the damper is connected with the C-shaped notch of the sliding block; the spring is arranged in the spring bin; one end of the spring is connected with parts of the supporting frame, and the other end is connected with the spring hook of the sliding block; and one end of the handsetting is fixed on a movable guide rail of a guide rail of a drawer, and the other end of the handsetting mechanism is movably connected with the shifting fork of the sliding block. The invention has the advantages of compact structure, simple and convenient installation and good buffering effect in the process of closing the drawer 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; There are damper storehouse arranged side by side and spring storehouse in the support rear portion, and there are guide groove and guide rail in the front portion of support; Slide block is roughly triangular in shape, and the C v notch v is arranged at the bottom of slide block, and there are bayonet socket, shift fork and carbine in the slide block side, there are preceding projection and back projection in the slide block back side, slide block is placed in the support, and the preceding projection of slide block and back projection embed in the guide groove of support, and the bayonet socket of slide block is stuck on the guide rail of support; Damper is rack-mount, 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 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, slide block connects or separates with dialling pin according to the different stages in moving process: be connected with group pin at the last stage slide block that drawer is pulled out, damper resets and does not produce additional drag, the spring energy storage that is stretched; The after-stage slide block of pulling out at drawer breaks away from group pin, dials pin and drawer and moves freely on guide rail; In the last stage that drawer pushes back, dial pin and drawer and on guide rail, move freely; 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 the outside drawing of embodiment of the invention support;

Fig. 2 is the outside drawing of embodiment damper;

Fig. 3 is the outside drawing of embodiment spring;

Fig. 4 is the outside drawing of embodiment slide block;

Fig. 5 is the upward view of embodiment support;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the rearview of Fig. 5;

Fig. 8 is the vertical view of embodiment slide block;

Fig. 9 is another state outside drawing of embodiment slide block;

Figure 10 is the outside drawing that embodiment dials pin;

Figure 11 be drawer in off position the time slide block with dial the buffer state schematic diagram that pin engages

Figure 12 is the buffer state schematic diagram of drawer when in the stage of pulling out spring being carried out energy storage;

Figure 13 is that drawer is at the buffer state schematic diagram of pulling out stage slide block deflection;

The view of Figure 14 buffer that is drawer when pulling out the stage slide block and dialling pin and separate.

The specific embodiment

Referring to Fig. 1 to Fig. 4, embodiments of the invention have 1, one damper of a support 19, a spring 3 and a slide block 2.

Referring to Fig. 5 to Fig. 7, 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 and lays or fixing spring 3 and damper 19; 6 belows, spring storehouse are shaped on bellmouth 20; Be shaped on shoulder groove 18 in the damper storehouse 5 and be used to locate damper 19.The top of support 1 is shaped on guide groove 7 and guide rail 8, and guide groove 7 is formed by a straightway and one section arc smooth connection, as the shape of letter " J "; Guide rail 8 is positioned at the left side of guide groove 7, and guide rail 8 also is to be formed by a straightway and one section arc smooth connection; Support 1 head, afterbody and middle part have three locating holes 21, and three card bases 22 and a projection 23 are arranged at support 1 bottom, and locating hole 21, card base 22 and projection 23 are used to make support 1 accurately to be fixedly mounted in the retaining rail of drawer guideway.

Referring to Fig. 8 to Fig. 9, slide block 2 is made of plastic, and its main body roughly is the isosceles triangle shape, is shaped on shift fork 11 on the hypotenuse on slide block 2 the right, is shaped on a bayonet socket 10 above shift fork 11, and the thickness of the guide rail 8 on mouth wide and the support 1 of bayonet socket 10 is adaptive; Be shaped on carbine 12 on the hypotenuse on slide block 2 left sides; Be shaped on C v notch v 9 on the base of slide block 2; Projection 13 and back projection 14 before the back side of slide block 2 is shaped on, the diameter of preceding projection 13 and back projection 14 and the groove width of guide groove 7 are adaptive; The top of slide block 2 also is shaped on an elastic recoil hook 17.

Referring to Figure 10, to dial the bending of pin 4 usefulness round steel and form, the prong width of the shift fork 11 of its diameter and slide block 2 is adaptive.

Referring to Figure 11 to Figure 14, in the guide groove 7 that slide block 2 embeds on the supports 1 with its preceding projection 13 and back projection 14, simultaneously with its bayonet socket 10 by a left side right being stuck on the guide rail 8 of support 1.Damper has cylinder 24, piston, piston rod 16 and damper connector 25, and cylinder 24 is fixed in the damper storehouse 5 of support 1 with the shoulder groove 18 that its head embeds on the support 1, and damper connector 25 embeds in the C v notch v 9 of slide block 2.Spring 3 is the extension springs of a steel wire screwed pipe, the neck that its lower end has diameter to shrink, and there is hook its upper end, and spring 3 is placed in the spring storehouse 6 of support 1, and the lower end of spring 3 embeds the bellmouth 20 of support 1, and spring 3 upper ends are hooked on the carbine 12 of slide block 2.Dial 4 one on pin and be welded on movable rail 15 right sides, dial in the shift fork 11 that inserts support 1 in pin 4 other ends.

The motion of slide block 2 on support 1 is subjected to 8 constraints of guide groove 7 and guide rail: current projection 13 and back projection 14 all be in the straightway of guide groove 7, when bayonet socket 10 is in the straightway of guide rail 8, and slide block 2 moves as straight line; When current projection 13 enters the arc of guide groove 7, slide block 2 deflections.When slide block 2 moved up with respect to support 1, the piston rod 16 of damper 19 was upwards pulled out, and spring 3 is elongated.

Figure 11～Figure 14 shows present embodiment and is pulled outwardly out the variation of mutual alignment between each parts the process from closed condition at drawer, for the purpose of observing easily, mark the part that guide groove 7 and guide rail 8 are blocked by slide block 2 with thin double dot dash line among the figure, the profile of projection 13 and back projection 14 before marking with thin double dot dash line.

Referring to Figure 11, drawer is in closed condition, and the piston of damper and piston rod 16 fully move into the rear portion of cylinder 24, and spring 3 fully shrinks, and the shift fork 11 of slide block 2 surrounds dials pin 4.

Referring to Figure 12, it is stressed outwards mobile that movable rail is followed drawer, is equivalent to figure medium-height trestle 1 and moves down, and rested on the original place synchronously because slide block 2 dials pins 4, so slide block 2 moves to the upper end of guide groove 7, the piston rod 16 of damper is drawn out of, and spring 3 is stretched.

Referring to Figure 13, drawer continues stressedly outwards to move, the preceding projection 13 of slide block 2 walk to be over guide groove 7 straightway immediately under the moment loading that spring 3 applies deflection enter the arc of guide groove 7, bayonet socket 10 also deflection enters the arc of guide rail 8; The deflection of preceding projection 13 and bayonet socket 10 causes slide block 2 deflections, and the deflection of slide block 2 is left the front cross-arm of shift fork 11 and dialled pin 4, and so far the thermal energy storage process of spring 3 finishes, and the piston of damper moves to the top of cylinder 24.Referring to Figure 14, movable rail band and is dialled pin and follow the drawer freedom and outwards move to the complete pull-out location of drawer, and in this segment limit, slide block 2 is self-locking in inflection point under the drag torque effect of spring 3.

When drawer is pushed back, dial the back yoke of the shift fork 11 of pin 4 collision slide blocks 2, make the back projection 14 of slide block 2 mobile backward along the straightway of guide groove 7, the arc that preceding projection 13 withdraws from guide groove 7 enters straightway, and then shift fork 11 clamps again and dials pin 4, and slide block 2 is synchronous by movable rail.Be pulled to clap at the pulling force effect lower carriage 1 of spring 3 and whole drawer and close the position, in this process, the piston of damper is forced to the cylinder rear portion and is moved, compressed gas gas in the jar when piston moves, slowed down the translational speed of drawer, drawer steadily and is snugly closed 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, at first collide with dialling pin 4 top of the shift fork 11 of slide block 2, and collision not only can not make each assembly of integrated drawer buffer be returned to normal operation position but also very easily damage assembly.For avoiding this situation to occur, present embodiment is at 17 elastic recoil hooks 17 of elastic recoil hook of slide block 2, when group pin 4 is run into elastic recoil hook 17, elastic recoil hook 17 forces the stage casing flexural deformation to the right of entire bracket 1, pass through thereby dodge group pin 4, make 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); There are damper storehouse (5) arranged side by side and spring storehouse (6) in described support (1) rear portion, and there are guide groove (7) and guide rail (8) in the front portion of support (1); Slide block (2) is roughly triangular in shape, C v notch v (9) is arranged at the bottom of slide block (2), there are bayonet socket (10), shift fork (11) and carbine (12) in slide block (2) side, there are preceding projection (13) and back projection (14) in slide block (2) back side, slide block (2) is placed in the support (1), the preceding projection (13) of slide block (2) and back projection (14) embed in the guide groove (7) of support (1), and the bayonet socket (10) of slide block (2) is stuck on the guide rail (8) of support (1); Damper is installed on the support (1), and the piston rod of damper (16) 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 (15) 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: described slide block (2) top also has elastic recoil hook (17).

3. according to the described drawer buffer of claim 1, it is characterized in that: described spring (3) is extension spring, the neck that the one head has diameter to shrink.