CN208972971U - Furniture damper and furniture part - Google Patents

Furniture damper and furniture part Download PDF

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Publication number
CN208972971U
CN208972971U CN201821101475.XU CN201821101475U CN208972971U CN 208972971 U CN208972971 U CN 208972971U CN 201821101475 U CN201821101475 U CN 201821101475U CN 208972971 U CN208972971 U CN 208972971U
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CN
China
Prior art keywords
piston
furniture
closure elements
damper according
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201821101475.XU
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Chinese (zh)
Inventor
C·格茨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unisys Co Ltd Blum Si
Julius Blum GmbH
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Unisys Co Ltd Blum Si
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Publication of CN208972971U publication Critical patent/CN208972971U/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/467—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-closing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/47—Actuated drawers operated by mechanically-stored energy, e.g. by springs having both self-opening and self-closing mechanisms which interact with each other
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/10—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0218—Mono-tubular units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/516—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0091—Drawer movement damping
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/236—Actuation thereof by automatically acting means using force or torque
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/47—Springs; Spring tensioners
    • E05Y2201/474—Compression springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form, shape
    • E05Y2800/28—Form, shape tubular
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furnitures, e.g. cabinets

Abstract

The utility model relates to furniture dampers, comprising: the fluid chamber with high-pressure side and low-pressure side；Piston with overload opening；Overload protection arrangement; it has the closure elements loaded by accumulator; wherein; the interconnecting piece of the fluid communication between high-pressure side and low-pressure side is discharged by release overload opening; wherein; closure elements have the circumferential surface of cylindricality and/or taper; and buffer fluid is in axial direction directed over the circumferential surface of the cylindricality and/or taper of closure elements in the case where the previously given pressure-loaded threshold value being higher than on piston in the downstream of overload opening by the interconnecting piece of fluid communication, or is radially directed away from the cylindricality of closure elements and/or the circumferential surface of taper.Furniture part is further related to, with furniture damper according to the present utility model.It is achieved in the beneficial technical effect of the utility model: preventing the closure elements in overload situations from vibrating along the oscillation of the longitudinal direction of piston and with this associated piston rod.

Description

Furniture damper and furniture part
Technical field
The utility model relates to a kind of furniture damper and furniture parts.
Background technique
Such furniture damper is for example for buffering movable furniture parts (drawer, door or flip lid) or movable The closing movement of the furniture part of ground bearing, to prevent the very loud impact and damage of furniture parts.Furniture damper Buffering effect pass through be located at shell in buffer fluid flow resistance generate.In pressure-loaded, piston is in fluid chamber It is mobile, wherein buffer fluid is across piston gap and/or across the gap being formed in piston and the inner wall of fluid chamber from height Press effluent to low-pressure side.When the pressure-loaded of piston is excessively high, for example in the case where improper use, so-called buffering can be caused Device vibration.In such overload situations, buffer fluid is no longer able to flow through piston with sufficient amount or by by piston Side.Raised pressure is then no longer able to reduce by buffer, so that piston or the piston rod being fastened thereon are kept suddenly Static or rebound.
Overload protection arrangement for furniture damper is well-known, such as from 12 633 U1 of AT of applicant In it is known.The overload protection arrangement usually has by spring-loaded ball, and the ball (is implied that lower than piston in normal operation On previously given pressure-loaded) closed piston overload opening, and (implied that higher than pre- on piston in overload situations First given pressure-loaded) resist accumulator power release plunger overload opening, thus release is located at high-pressure side and low-pressure side Between fluid communication connection.It, can be by a greater amount of buffer fluids from high pressure by discharging the connection of the fluid communication Side is delivered to low-pressure side, so that the pressure in furniture damper reduces rapidly and prevents the shell of furniture damper from bursting.
However, it has been found that in rear (implying that downstream) area of ball in the case where using ball in the function of closure elements Back pressure is established in domain, the back pressure is partly greater than the Fluid pressure in front (implying that upstream) region of ball.This may cause, The back pressure of Fluid pressure and ball rear in front of ball interacts with each other in overload situations, thus the ball bears sizable Oscillation.This vibration of ball causes the undefined switching behavior and piston vibration of bar of overload protection arrangement, this is not also due to Comfortable vibration noise and arouse attention.
Utility model content
The purpose of this utility model is: providing in the case where avoiding disadvantage discussed above and a kind of starts to refer to type Furniture damper.
This passes through the furniture that is buffered for the movement to the furniture parts movably supported according to the utility model Buffer realizes that the furniture damper includes:
Shell；
At least one fluid chamber being formed in the shell, the fluid chamber have high-pressure side and low-pressure side；
Buffer fluid in the fluid chamber is set；
At least one piston at least one overload opening, the piston are movably disposed at the fluid chamber In to execute cushion stroke, and the high-pressure side of the fluid chamber and low-pressure side are separated from each other by the piston；
Overload protection arrangement in the piston is set, and the overload protection arrangement has the envelope loaded by accumulator Element is closed, the closure elements close the work in the case where the previously given pressure-loaded threshold value being lower than on the piston At least one described overload opening of plug, and in the case where the previously given pressure-loaded threshold value being higher than on the piston The power for resisting the accumulator discharges at least one overload opening described in the piston, wherein passes through and discharges the overload It is open to discharge the interconnecting piece of the fluid communication between the high-pressure side and low-pressure side of the fluid chamber,
It is characterized in that, the closure elements have the circumferential surface of cylindricality and/or taper, and the buffer fluid is being higher than Pass through fluid communication in the downstream of the overload opening in the case where previously given pressure-loaded threshold value on the piston Interconnecting piece is in axial direction directed over the cylindricality of the closure elements and/or the circumferential surface of taper, or radially by It guides far from the cylindricality of the closure elements and/or the circumferential surface of taper.
Set according to the utility model: closure elements have cylindrical and/or taper circumferential surface, and buffer fluid is in height Pass through the connection edge of fluid communication in the downstream of overload opening in the case where the previously given pressure-loaded threshold value on piston Axial direction is directed over cylindrical and/or taper the circumferential surface of closure elements, or is radially directed away from envelope Close the cylindricality of element and/or the circumferential surface of taper.
By the cylindricality of closure elements and/or the circumferential surface of taper, buffer fluid is biased in overload situations, thus prevent or At least reduce the back pressure in closure elements rear (implying that downstream) region, is being closed so that the back pressure at closure elements rear is less than The Fluid pressure occurred in front of element.It is realized by this measure: closure elements switching behavior with definition, to realize this The beneficial technical effect of utility model: prevent in overload situations closure elements along the oscillation of the longitudinal direction of piston and with This associated piston rod vibration.
" the cylindricality circumferential surface " of closure elements is not only interpreted as cylindrical but also also is understood as all following cross in principle Cross sectional shape, the bottom surface of these cross-sectional shapes can be parallel to its own movement (implying that ellipse, polygon, cross etc.). And the circumferential surface of taper can with pyramid, pinnacle conically, truncated cone shape or at least segmental taper-constituted raisedly.
Can be set according to one embodiment: closure elements can restrained motion twelve Earthly Branches along the longitudinal direction opposing pistons of piston It holds.
Closure elements are for example configured to solid.According to a kind of optional form of implementation, closure elements can also be with structure As hollow body, it is preferably configured as sleeve.The cavity of closure elements can be structured to be at least partially accommodated accumulator, Thus to obtain very compact structure type.
According to the utility model it is beneficial that:
The closure elements have cavity, and the accumulator is at least partially accommodated into the cavity；
The throttling that there is the closure elements at least one to be preferably coaxially disposed with the overload opening is open, the throttling Opening is for passing through buffer fluid；
The piston has at least one piston gap, and the buffer fluid is by the piston gap from high-pressure side Flow to low-pressure side；
There is the interconnecting piece of the fluid communication discharged when discharging the overload opening at least one to be arranged in the piston In and the hole that is separated at least one described piston gap or with the passing away of longitudinal direction, the passing away The relatively described piston of longitudinal direction longitudinal direction laterally, for example extend at a right angle；
The piston has first piston component and at least one second piston portion connecting with the first piston component Part；
The first piston component has the first recess portion, and the closure elements are at least partially accommodated into first recess portion In；
The second piston component has the second recess portion, and the accumulator is at least partially accommodated into second recess portion In；
Second recess portion of the longitudinal direction of first recess portion of the first piston component and the second piston component Longitudinal direction extend coaxially with each other；
The second piston component is connect with piston rod；
The piston rod is drawn from the shell of the furniture damper；
The piston rod moves between first terminal position and second terminal position to execute cushion stroke, wherein In the fluid chamber, be provided in the region being arranged between the first terminal position and the second terminal position to A few stable element, the stable element has the opening for being removably received by piston rod, so that the piston rod exists The direction extended when executing cushion stroke transverse to the longitudinal direction of the piston rod can stablize；
The accumulator has at least one helical spring, preferably compression spring；
The purpose is also achieved by a kind of furniture part, especially drawer pull-out guide, with basis At least one furniture damper of the utility model.
Detailed description of the invention
Other details and advantage of the utility model are obtained according to following Detailed description of the invention.Herein:
Fig. 1 shows the perspective view of furniture, and there is the furniture Furniture Body and the relatively described Furniture Body to move twelve Earthly Branches The drawer held；
Fig. 2 shows the drawer pull-out guide with drawer rail, the drawer pull-out guide need to be with drawer side Wall connection；
Fig. 3 a-3c shows the exploded view of furniture damper and the detailed view of two amplifications to this；
Fig. 4 a, 4b show the perspectivity sectional elevation of furniture damper and the detailed view of the amplification to this；
Fig. 5 a-5c show furniture damper perspective cross-section and the first detailed view in normal operation and The second detailed view in overload situations；
Fig. 6 a-6d shows two different perspective views of the piston with piston rod and two detailed views to this.
Specific embodiment
Fig. 1 shows the furniture 1 of the Furniture Body 2 with cabinet, wherein the movable furniture parts 3 of drawer type passes through By drawer pull-out guide 4, opposite Furniture Body 2 is movably supported.Drawer be respectively provided with front apron 5, drawer bottom 6, Drawer side wall 7 and rear wall 8.Drawer pull-out guide 4 respectively includes main body track 9, opposite main body track 9 movably supports Drawer rail 10 and optionally include intermediate orbit 11, wherein the main body track needs tight via fastening section 12a, 12b Gu the drawer rail has connected with drawer side wall 7 or can connect with drawer side wall, the intermediate orbit on Furniture Body 2 It is movably supported between main body track 9 and drawer rail 10, to realize being completely pulled out for drawer.
Fig. 2 shows the perspective views of drawer pull-out guide 4 and the drawer side wall 7 that need to be connect with drawer rail 10.It is taking out Moveable intermediate orbit 11 is provided between drawer track 10 and main body track 9, wherein be provided with and couple on drawer rail 10 Element 13, the coupling element can releasably be coupled with the drivening piece 14 that can be spring-loaded for pulling in equipment 15, so that Drawer rail 10 is caught by drivening piece at the end of closing movement is closed on and can be pulled in by pulling in the accumulator of equipment 15 In the terminal location of closing.By also by the furniture damper 16 with preferably hydraulic piston-cylinder unit of description, drawer rail The spring auxiliary in road 10 pulls movement until reaching the terminal location closed can slow down.
Drawer side wall 7 is configured to hollow chamber profile, and special-shaped wall 7a and outside of the hollow chamber profile with inside is different Type wall 7b, wherein drawer side wall 7 has channel 17 open downwards and along the extension of the longitudinal direction of drawer side wall 7, institute Channel is stated for accommodating drawer rail 10.Drawer side wall 7 is also with the first fastening apparatus 38a for connecting with rear wall 8, use In the second fastening apparatus 38b being connect with front apron 5 and the bracket 18 for being used to support drawer bottom 6.
Fig. 3 a shows the exploded view of furniture damper 16.Furniture damper 16 has for example cylindrical shell 19, described The fluid chamber 19a having for movably supporting piston 20 is constituted in shell.Piston 20 and the piston rod drawn from shell 19 21 connections, wherein piston 20 is movably supported on first terminal along the longitudinal direction of piston rod 21 (L) in fluid chamber 19a Between position and second terminal position.When executing cushion stroke, piston 20 can be resisted in shell 19, preferably hydraulic Buffer fluid resistance and slow down.Piston 20 can also can be constituted one-piece or with multi-piece type.Since piston rod 21 exists Movement between first terminal position and second terminal position, the volume of fluid chamber 19a are variable, wherein in order to compensate for stream The volume of body room 19a, equipped with deformable or movable compensation equipment 23.It is whole first in setting in fluid chamber 19a At least one stable element 24 is provided in region between end position and second terminal position, the stable element, which has, to be used for It is removably received by the opening 24a of piston rod 21, so that piston rod 21 is when executing cushion stroke transverse to piston rod 21 The direction that longitudinal direction (L) extends can stablize.In this way, piston rod 21 is accurately guided along the longitudinal direction (L), In, prevent bending or bending of the piston rod 21 along the longitudinal direction when (L) movement.For Fluid Sealing sealing fluid room 19a Equipped with packaged unit 22.
Fig. 3 b shows the enlarged view in the region (A) irised out in fig. 3 a.Compensation equipment 23 may include compressiblly structure At material block (such as foam rubber) or optionally include as shown in the drawings by can compression spring 23a load Sealing element 23c, the sealing element movably supports in fluid chamber 19a along piston rod 21.Sealing element 23c relative pressure Spring 23a may be supported on bearing part 23b.The size of the opening 24a of the stable element 24 of preferred discotic corresponds essentially to The diameter of piston rod 21.Stable element 24 at least partially sticks on the inner wall of fluid chamber 19a and has at least one excellent The recess portion 26a of ring selection side, the recess portion is for passing through the buffer fluid being arranged in fluid chamber 19a.In shown reality It applies in example, the stable element 24 with two or more recess portions 26a, 26b, 26c is arranged for being passed through by buffer fluid.Stablize Element 24 can fixedly or along the longitudinal direction (L) can be supported on to restrained motion two of piston 20 in fluid chamber 19a In the region being spaced apart between terminal location.
Fig. 3 c shows the enlarged view in the region (B) irised out in fig. 3 a.There are two the pistons being connected to each other for the tool of piston 20 Component 20c, 20d and overload protection arrangement 25 with closure elements 20b, wherein closure elements 20b passes through compression spring shape The accumulator 20a of formula is loaded.Closure elements 20b has cylindricality circumferential surface 33a and/or taper circumferential surface 33b.Piston 20 is equipped at least one 30 (Fig. 4 b) of a overload opening, the overload opening pass through closing with the power lower than the previously given pressure-loaded on piston 20 Element 20b closing.Closure elements 20b resists accumulator 20 with the power for the previously given pressure-loaded being higher than on piston 20 Power and move so that piston 20 overload opening 30 in overload situations release with passing through for buffer fluid.With this side Formula, which causes the rapid pressure in fluid chamber 19a, to be reduced, and does not damage the other of shell 19, piston 20 or furniture damper 16 herein Component.When executing cushion stroke, at least one work is closed by the movable switch ring 20e of opposing pistons component 20c, 20d Plug 34 (Fig. 5 b) of opening, so that piston 20 resists the high of buffer fluid when moving along the direction of cushion stroke 29 (Fig. 4 a) Resistance.And when the direction 29 with cushion stroke moves on the contrary, switch ring 20e is moved in following positions, in the position Middle release plunger opening 34, so that small resistance of the piston 20 resistant only to buffer fluid, and piston rod 21 can be with quickly side Formula is extracted out from shell 19 again.
Fig. 4 a shows the perspectivity sectional elevation of furniture damper 16.Constituting in shell 19 has for movably supporting The fluid chamber 19a of piston 20.Fluid channel 27a, 27b of the preferred slot form on inner wall by the way that shell 10 is arranged in, can Cause the control relevant to path to cushion effect.Here, flow channel 27a, 27b are configured to, so that effective flowing Cross section is reduced along the direction of cushion stroke 29.In this way, piston 20 is inserted into deeper in shell 19, buffer fluid Cushion effect is bigger in turn for flow resistance.Piston rod 21 is guided through packaged unit 22, compression spring 23a, bearing part 23b And then it compensates the sealing element 23c of equipment 23 and is guided through stable element 24 and is connect with piston 20.
Fig. 4 b shows the enlarged view in the region outlined in fig.4.It is moved in piston 20 along the direction of cushion stroke 29 When, piston rod 21 is inserted into fluid chamber 19a, wherein the additional volume of piston rod 21 can be compensated by compensation equipment 23.This It is accomplished in that the power movement of sealing element 23c renitency spring 23a when piston rod 21 is inserted into fluid chamber 19, stream The volume 19a of body room thus increases and then the additional volume of compensating piston bar 21.Stable element 24 exists in the illustrated embodiment It only can limitedly be moved on first part path S1 in fluid chamber 19a, wherein for limiting the shell of the movement of stable element 24 Body 19 has stop surface 28.In the embodiment illustrated, stop surface 28 is formed by the tapered portion of fluid chamber 19a, wherein institute State the inclined-plane that tapered portion constitutes annular.In this way, stable element 24 is movably supported only along first part path S1. Second part path S2 is provided with flow channel 27a, 27b, wherein prevent by stop surface 28 close into preventing Sealing 23c is blocked with the possible of flow channel 27a, 27b.
Fluid chamber 19a has high-pressure side (HP) and low-pressure side (LP), and the high-pressure side and low-pressure side pass through piston 20 each other Separation.When executing cushion stroke along direction 29, piston 20 is pressed into the high-pressure side (HP) of fluid chamber 19a.If piston 20 Pressure-loaded be higher than previously given threshold value, then overload protection arrangement 25 works.For this purpose, piston 20 has at least one Overload opening 30, the overload opening are logical in normal operation (implying that lower than the previously given pressure-loaded on piston 20) Cross closure elements 20b closing.In the previously given pressure-loaded exceeded on piston 20, closure elements 20b resists accumulator The power of 20a moves, thus the overload opening 30 of release plunger 20.By release overload opening 30 release be located at high-pressure side (HP) with The interconnecting piece 31 of fluid communication between low-pressure side (LP), thus increase the effective flow cross section for being used for buffer fluid, and And buffer fluid sets out from high-pressure side (HP) across the passing away 36 for overloading opening 30 and the interconnecting piece 31 across fluid communication It flow to low-pressure side (LP).Cause the quick pressure reduction in fluid chamber 19a in this way.
Fig. 5 a shows the perspective cross-section of furniture damper 16.The high-pressure side (HP) of fluid chamber 19a and low-pressure side (LP) It is separated from each other by piston 20, wherein piston 20 can be pressed into shell 19 when executing piston stroke along direction 29.
Figure 5b shows that the enlarged views in the region outlined in fig 5 a, wherein piston 20 is when executing piston stroke low (normal operation) is moved along direction 29 in the case where previously given pressure-loaded threshold value.In this case, the mistake of piston 20 It carries opening 30 and the force-closed of accumulator 20a is passed through by closure elements 20b.Buffer fluid sets out from high-pressure side (HP) across work Plunger member 20d and pass through at least one piston gap 34 flow to low-pressure side (LP) so that the movement of piston 20 is braked.It is living Plug 20 in the embodiment illustrated with first piston component 20d and at least one connect with first piston component 20d the Two piston element 20c.It is described that there is first piston component 20d the first recess portion 37a, closure elements 20b to be at least partially accommodated into In first recess portion.There is second piston component 20c the second recess portion 37b, accumulator 20a to be at least partially accommodated into described second In recess portion.It can set herein: the longitudinal direction and second piston component 20c of the first recess portion 37a of first piston component 20d The longitudinal direction of the second recess portion 37b extend coaxially with each other.Second piston component 20c is connect with piston rod 21, the piston Bar is drawn from the shell 19 of furniture damper 16.Closure elements 20b is configured to hollow body, is for example configured to sleeve, In, the accumulator 20a for being configured to compression spring is at least partially accommodated into the cavity 39 of closure elements 20b.It preferably sets: envelope Twice for closing diameter of the length at least equal to closure elements 20b of element 20b.
And Fig. 5 c shows the enlarged view in the region outlined in fig 5 a, wherein piston 20 when executing cushion stroke It is moved in the case where higher than previously given pressure-loaded threshold value along direction 29.In the overload situations, closure elements 20b is logical The power for crossing generated Fluid pressure resistance accumulator 20a is extruded, thus the overload opening 30 of release plunger 20.Positioned at high pressure Buffer fluid on side (HP) flows through the overload opening 30 of piston 20 in overload situations, wherein buffer fluid passes through stream The interconnecting piece 31 of body conducting is in axial direction directed over envelope in 30 downstreams of overload opening along the direction for the arrow 35 drawn The cylindricality of element 20b and/or circumferential surface 33a, 33b of taper are closed, or is radially directed away from the column of closure elements 20b Circumferential surface 33a, 33b of shape and/or taper.The interconnecting piece 31 of fluid communication for example can have at least one and be arranged in piston 20 Hole or at least one passing away 36 with longitudinal direction, wherein the longitudinal direction opposing pistons 20 of passing away 36 Longitudinal direction (L) laterally, for example extends at a right angle.By the circumferential surface 33a of the cylindricality of closure elements 20b and/or taper, 33b, buffer fluid can be biased in overload situations in the downstream of overload opening 30, to avoid after closure elements 20b The undesirable oscillation of the back pressure and closure elements 20b just occurred (L) along the longitudinal direction.
Closure elements 20b can have at least one preferably with 30 coaxial arrangement of overload opening, wear for buffer fluid The throttling opening 32 crossed.The throttling opening 32 is used for stable plunger 20, especially shortly before reaching the terminal location of indentation Stable plunger.The buffer function of piston 20 can be constituted multistagely as shown and describing in fig.4.By first-class Dynamic channel 27b can movement of the damper piston 20 on first part section, by second flow path 27a can damper piston exist On second part section movement and by throttling opening 32 can damper piston 20 on Part III section until indentation The movement of terminal location.Here, buffer fluid via throttling opening 32 flow into pistons 20 recess portion 37a, 37b in and then from The recess portion 37b of second piston component 20c, which sets out, reaches the low-pressure side (LP) of fluid chamber 19a.
Fig. 6 a shows the first perspective view of piston 20 and piston rod connected to it 21.Fig. 6 b is shown to be irised out in Fig. 6 a Region enlarged view.It is seen that first piston component 20d and second piston component 20c, switch ring 20e and closing member Part 20b can be supported in restricted movement between the first piston component and second piston component.Second piston component 20c is equipped with At least one passing away 36, buffer fluid can be discharged by the passing away in overload situations.
Fig. 6 c shows the second perspective view of piston 20 and piston rod connected to it 21.Fig. 6 d is shown to be irised out in fig. 6 c Region enlarged view.There is second piston component 20c the piston of the multiple preferred surrounding place sides passed through for buffer fluid to open Mouth 34.
It, can be straight when also combining the furniture part of 4 form of drawer pull-out guide to show furniture damper 16 according to fig. 2 Connect it is seen that, furniture damper 16 also can be in conjunction with for the holding plate of support furniture buffer 16, hinge for furniture or being used for The furniture drive for moving the furniture parts movably supported 3 is applied together.

Claims (22)

1. the furniture damper (16) for being buffered to the movement of the furniture parts (3) movably supported, the furniture is slow Rushing device includes:
Shell (19)；
At least one fluid chamber (19a) being formed in the shell (19), the fluid chamber have high-pressure side (HP) and low pressure Side (LP)；
Buffer fluid in the fluid chamber (19a) is set；
At least one piston (20) at least one overload opening (30), the piston (20) are movably disposed at institute It states to execute cushion stroke in fluid chamber (19a), and the high-pressure side (HP) of the fluid chamber (19a) and low-pressure side (LP) pass through The piston (20) is separated from each other；
The overload protection arrangement (25) being arranged in the piston (20), the overload protection arrangement have by accumulator (20a) The closure elements (20b) of load, the closure elements (20b) are lower than the previously given pressure-loaded on the piston (20) At least one described overload opening (30) of the piston (20) is closed in the case where threshold value, and is being higher than the piston (20) On previously given pressure-loaded threshold value in the case where resist the power of the accumulator (20a) for the described of the piston (20) At least one overload opening (30) release, wherein discharged by discharging the overload opening (30) at the fluid chamber (19a) High-pressure side (HP) and low-pressure side (LP) between fluid communication interconnecting piece (31),
It is characterized in that, the closure elements (20b) have the circumferential surface (33a, 33b) of cylindricality and/or taper, and the buffering Fluid is in the case where the previously given pressure-loaded threshold value being higher than on the piston (20) in the overload opening (30) Downstream by the interconnecting piece (31) of fluid communication be in axial direction directed over the closure elements (20b) cylindricality and/or The circumferential surface (33a, 33b) of taper, or radially it is directed away from the cylindricality and/or taper of the closure elements (20b) Circumferential surface (33a, 33b).
2. furniture damper according to claim 1, which is characterized in that relatively described piston (20) edge of the closure elements The longitudinal direction (L) of the piston (20) can support to restrained motion.
3. furniture damper according to claim 1 or 2, which is characterized in that the closure elements (20b) are configured to hollow Body.
4. furniture damper according to claim 3, which is characterized in that the closure elements (20b) are configured to sleeve.
5. furniture damper according to claim 1 or 2, which is characterized in that the closure elements (20b) have cavity (39), the accumulator (20a) is at least partially accommodated into the cavity.
6. furniture damper according to claim 1 or 2, which is characterized in that the closure elements (20b) have at least one A throttling is open (32), and the throttling opening is for passing through buffer fluid.
7. furniture damper according to claim 6, which is characterized in that the throttling opening and overload opening (30) Coaxial arrangement.
8. furniture damper according to claim 1 or 2, which is characterized in that the piston (20) is at least one work Plug opening (34), the buffer fluid are set out from high-pressure side (HP) by the piston gap and flow to low-pressure side (LP).
9. furniture damper according to claim 8, which is characterized in that discharged when discharging the overload opening (30) The interconnecting piece (31) of fluid communication have at least one be arranged in the piston (20) and at least one described piston The separated hole of opening (34) or the passing away (36) with longitudinal direction, the longitudinal direction of the passing away (36) are opposite The longitudinal direction (L) of the piston (20) is laterally extended.
10. furniture damper according to claim 9, which is characterized in that the longitudinal direction phase of the passing away (36) The longitudinal direction (L) of the piston (20) is extended at a right angle.
11. furniture damper according to claim 1 or 2, which is characterized in that the piston (20) has first piston portion Part (20d) and at least one second piston component (20c) being connect with the first piston component (20d).
12. furniture damper according to claim 11, which is characterized in that the first piston component (20d) has the One recess portion (37a), the closure elements (20b) are at least partially accommodated into first recess portion.
13. furniture damper according to claim 11, which is characterized in that the second piston component (20c) has the Two recess portions (37b), the accumulator (20a) are at least partially accommodated into second recess portion.
14. furniture damper according to claim 12, which is characterized in that the second piston component (20c) has the Two recess portions (37b), the accumulator (20a) are at least partially accommodated into second recess portion.
15. furniture damper according to claim 14, which is characterized in that the first of the first piston component (20d) The longitudinal direction of recess portion (37a) and the longitudinal direction of second recess portion (37b) of the second piston component (20c) are same each other Extend to axis.
16. furniture damper according to claim 11, which is characterized in that the second piston component (20c) and piston Bar (21) connection.
17. furniture damper according to claim 16, which is characterized in that the piston rod (21) is from the furniture buffering It is drawn in the shell (19) of device (16).
18. furniture damper according to claim 16 or 17, which is characterized in that the piston rod (21) is in first terminal It moves between position and second terminal position to execute cushion stroke, wherein in the fluid chamber (19a), exist in setting At least one stable element (24) is provided in region between the first terminal position and the second terminal position, it is described Stable element has the opening (24a) for being removably received by piston rod (21), so that the piston rod (21) is slow in execution The direction that longitudinal direction (L) when rushing stroke transverse to the piston rod (21) extends can stablize.
19. furniture damper according to claim 1 or 2, which is characterized in that the accumulator (20a) has at least one A helical spring.
20. furniture damper according to claim 19, which is characterized in that the accumulator (20a) has at least one Compression spring.
21. furniture part, which is characterized in that the furniture part has according to claim 1 to described in one of 20 at least one A furniture damper (16).
22. furniture part according to claim 21, which is characterized in that the furniture part is drawer pull-out guide (4)。
CN201821101475.XU 2017-07-13 2018-07-12 Furniture damper and furniture part Active CN208972971U (en)

Applications Claiming Priority (2)

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AT505862017 2017-07-13
ATA50586/2017 2017-07-13

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CN201821101475.XU Active CN208972971U (en) 2017-07-13 2018-07-12 Furniture damper and furniture part

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AT (1) AT17731U1 (en)
DE (1) DE202018103818U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT523986B1 (en) 2020-07-13 2023-05-15 Blum Gmbh Julius furniture damper

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838428U (en) * 1971-09-10 1973-05-12
JPS5632137U (en) * 1979-08-18 1981-03-28
BR0303572A (en) * 2002-03-21 2004-04-20 Blum Gmbh Julius Pneumatic braking and damping device, especially for movable moving parts
US7861371B2 (en) * 2007-09-07 2011-01-04 Moonju Hardware Co., Ltd Door damper
AT14690U1 (en) * 2012-09-28 2016-04-15 Blum Gmbh Julius Damper for movable furniture parts
GB2541396A (en) * 2015-08-17 2017-02-22 Titus D O O Dekani Improvements in dampers

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DE202018103818U1 (en) 2018-07-16

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