EP4388219A2 - Amortisseur - Google Patents

Amortisseur

Info

Publication number
EP4388219A2
EP4388219A2 EP22761349.4A EP22761349A EP4388219A2 EP 4388219 A2 EP4388219 A2 EP 4388219A2 EP 22761349 A EP22761349 A EP 22761349A EP 4388219 A2 EP4388219 A2 EP 4388219A2
Authority
EP
European Patent Office
Prior art keywords
damper
compensation part
seal
damper housing
piston rod
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.)
Pending
Application number
EP22761349.4A
Other languages
German (de)
English (en)
Inventor
Thomas Schuler
Simon Gassner
Bernhard Krammer
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.)
Julius Blum GmbH
Original Assignee
Julius Blum GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Julius Blum GmbH filed Critical Julius Blum GmbH
Publication of EP4388219A2 publication Critical patent/EP4388219A2/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • 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
    • E05F5/006—Braking devices, e.g. checks; Stops; Buffers for hinges having a cup-shaped fixing part, e.g. for attachment to cabinets or furniture
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • 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
    • 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
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
    • F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
    • 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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/066—Units characterised by the partition, baffle or like element
    • 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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • 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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/365—Special sealings, including sealings or guides for piston-rods the sealing arrangement having a pressurised chamber separated from the damping medium
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E05Y2201/256—Fluid or viscous friction with pistons or vanes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/264—Type of motion, e.g. braking linear
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/45—Manufacturing
    • E05Y2800/46—Injection moulding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/67—Materials; Strength alteration thereof
    • E05Y2800/676—Plastics
    • E05Y2800/678—Elastomers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/20—Location of equilibration chamber

Definitions

  • the present invention relates to a damper, in particular for furniture fittings, comprising:
  • volume compensation device through which a displacement of the piston rod when immersed in the fluid chamber volume of
  • - has at least one spring element, by means of which the at least one seal can be reset at least partially into an initial position after a damping stroke has taken place, - wherein the at least one spring element is integral with the at least one seal and/or integral with the at least one support element to form a common
  • the invention relates to a furniture fitting, in particular
  • the applicant's WO 2012/024711 A1 shows a furniture damper with a damper housing which can be inserted into an inner cavity of a furniture hinge and, in a mounted state, can be accommodated completely within the hinge cup.
  • a fluid chamber is arranged in the damper housing, in which a piston with a piston rod is displaceably guided.
  • a volume of the damping fluid that can be displaced by the piston rod when it enters the fluid chamber can be compensated for by a volume compensation device.
  • the volume compensation device includes sealing lips for sealing the fluid chamber from the piston rod and from an inner wall of the damper housing. Furthermore, the volume compensation device includes a stop element for supporting and guiding the sealing lips.
  • a conical spring is provided, with the additional volume of the piston rod entering the fluid chamber being able to be compensated for by compressing the conical spring.
  • a multi-part structure of a volume compensation device is shown in CN 111485783 A.
  • JP 2007-255446 ⁇ discloses a damper with a cylinder, a linearly displaceable piston, a piston rod and a volume compensation device arranged in the cylinder, by means of which a volume of the damping fluid that can be displaced by the piston rod when immersed in the fluid chamber can be compensated.
  • the volume compensation device includes a seal, by which the fluid chamber can be sealed off from the piston rod and from an inner wall of the cylinder.
  • there is a spring device by means of which the seal can be reset at least partially into the initial position after a damping stroke.
  • the seal that The support element and the spring device can be arranged in a nested manner.
  • volume compensation device requires a relatively large amount of space overall. Since furniture fittings have become more and more compact in recent years anyway, a damper design that is as compact as possible is also a necessary prerequisite. Moreover, the installation of the volume compensation device turns out to be relatively complicated due to the individual components. The use of a mechanical spring to reset the seal is also associated with increased costs in serial production.
  • a damper with a cylindrical housing and a piston that can be moved in the housing. Furthermore, a volume compensation device is provided, by means of which a volume of the damping fluid that can be displaced by the piston rod when it enters the fluid chamber can be compensated.
  • the volume compensation device includes a seal, by which the fluid chamber can be sealed off from the piston rod and from an inner wall of the housing. Furthermore, a volume compensation element is provided, through which the seal can be guided in the housing. The seal can be reset after a cushioning stroke thanks to flexible webs.
  • the volume compensation element and the seal can be integrally formed together. The volume compensation element is held on a cover, the cover closing the housing at one end and forming a passage for the piston rod.
  • the cover Due to the one-piece design between the cover and the flexible webs, however, a torque acts on the cover with each damping stroke. There is a risk that the cover will twist relative to the housing of the damper and the hydraulic damping fluid can escape from the housing. In the case of a one-piece design between the cover and the bendable webs, the cover must also be made of an elastic material, which can result in further sealing problems for the damper.
  • the object of the present invention is therefore to specify a damper of the type mentioned at the outset while avoiding the disadvantages discussed above.
  • the compensation part rests loosely on the at least one cover or can be placed on it.
  • a separate design between the compensation part and the cover means that no torque is exerted on the cover during a damping stroke, which reduces the risk of leakage.
  • the compensation part and the cover can consist of different materials, so that said components can be designed better for their function to be fulfilled.
  • the at least one spring element, the at least one seal and the at least one support element are combined in one piece to form the common compensation part.
  • the compensation part can be formed from an elastically bendable or deformable material, preferably rubber or plastic. Provision can preferably be made for the compensation part to be in the form of an injection molded part. In this way, the damper can be manufactured in a simple and cost-saving manner.
  • the damping fluid has a hydraulic damping fluid, for example a silicone oil.
  • a hydraulic damping fluid for example a silicone oil.
  • the wear could be reduced by using a harder material for the compensation part
  • the choice of material, the hardness and the geometry of the compensation part have an influence on the friction coefficients of the contact points, on the tightness, on the compression of the seal and on the setting behavior of the spring element, which of course depends on the material used for the compensation part.
  • the force of the spring element in turn influences the tightness, the internal pressure in the cylinder and thus also the compression of the seal.
  • the material used and the hardness of the compensation part thus influence all parameters of the volume compensation device (coefficients of friction, tightness, compression, setting behavior, internal pressure in the cylinder, spring force, etc.).
  • the pressure exerted by the spring element on the damping fluid via the seal affects the internal pressure in the damper housing.
  • the internal pressure in the damper housing has an influence on the seal geometry (compression of the seal or the sealing lips).
  • the seal geometry in turn has an effect on the friction values of the seal and on the tightness, with the friction values of the seal also influencing the spring force of the seal.
  • FIG. 1 shows a perspective view of a piece of furniture with a furniture part and furniture fittings for the movable mounting of the furniture part
  • 3a-3d show a damper in two different embodiments with the piston rod in an extended and in a retracted position
  • 5a, 5b show another embodiment of a damper with the piston rod in an extended and in a retracted position
  • 6a, 6b show another embodiment of a damper with the piston rod in an extended position and in a retracted position.
  • Fig. 1 shows a perspective view of a piece of furniture 1 with a furniture body 2, a movable furniture part 3 and furniture fittings 4 (here in the form of hinges 4a) for the movable mounting of the furniture part 3 relative to the furniture body 2.
  • the furniture fittings 4 have a first fitting part 5 for attachment to the furniture body 2 and a second fitting part 6 for attachment to the movable furniture part 3, the first fitting part 5 and the second fitting part 6 being connected to one another in an articulated manner.
  • the furniture fitting 4 has at least one (not visible here) damper 10, through which a relative movement of the two Fitting parts 5, 6 can be damped to one another. At least one closing movement of the furniture part 3 up to the completely closed end position in relation to the furniture body 2 can be damped by the damper 10 .
  • the furniture fitting 4 in the form of the hinge 4a in a perspective view.
  • the first fitting part 5 has a hinge arm and/or that the second fitting part 6 has a hinge cup.
  • the fitting parts 5, 6 are connected to one another in an articulated manner, preferably via at least one articulated lever 7a, 7b.
  • the first fitting part 5 can be fastened to the furniture body 2 by means of a mounting plate 8 .
  • the mounting plate 8 and the first fitting part 5 are designed as separate components.
  • the mounting plate 8 is to be fastened to the furniture body 2 in a first assembly step.
  • the first fitting part 5 can be detached and locked to the mounting plate 8 without the use of tools via a locking device 9 (FIG. 2b) known from the prior art.
  • the first fitting part 5 can be adjusted relative to the mounting plate 8 in a longitudinal direction (L) of the mounting plate 8 by a first adjusting device 9a.
  • An inclination of the first fitting part 5 relative to the mounting plate 8 can be adjusted by a second adjusting device 9b.
  • FIG. 2b shows the furniture fitting 4 according to FIG. 2a in a cross section.
  • a locking device 9 for releasably locking the first fitting part 5 to the mounting plate 8 can be seen.
  • a relative movement of the two fitting parts 5, 6 to one another can be damped by a damper 10.
  • the damper 10 has a damper housing 11 which is integrated in the first fitting part 5 in the exemplary embodiment shown.
  • the damper housing 11 it is also possible to arrange the damper housing 11 on or in the second fitting part 6 .
  • 3a shows a cross section of a damper 10 with a preferably cylindrical damper housing 11, in which at least one fluid chamber 12 for the displaceable mounting of a piston 13 is formed.
  • the piston 13 is connected to a piston rod 14 .
  • the piston rod 14 is guided through a cover 24 of the damper housing 11 .
  • the piston 13 can be guided in a linearly displaceable manner in the fluid chamber 12 .
  • an overload protection 21 is provided with a spring-loaded ball 21a.
  • the overload protection device 21 is designed in such a way that at least one overload channel 25 of the piston 13 is closed when a damping stroke is being carried out and below a predetermined threshold value when pressure is applied to the piston 13 .
  • the damping fluid can only flow through a flow channel 23a formed between the piston 13 and an inner wall 22 of the damper housing 11 and/or through any other flow channels of the piston 13, with a braking force being generated for the piston 13 plunging into the fluid chamber 12 .
  • the spring-loaded ball 21 can be moved counter to the force of a spring, so that the overload channel 25 of the piston 13 is released.
  • the damping fluid can flow through the overload channel 25 and through a flow channel 23b of the piston 13, whereby a rapid pressure reduction can be brought about in the fluid chamber 12 and damage to the damper 10 can be prevented.
  • overload protection devices 21 are widely known according to the state of the art and do not need to be explained in more detail at this point.
  • the overload protection 21 can also be omitted entirely.
  • a volume of the damping fluid that can be displaced by the piston rod 14 when it enters the fluid chamber 12 can be compensated for by a volume compensation device 15 .
  • This volume compensation device 15 is necessary because the additional volume of the immersing piston rod 14 must be compensated in order to prevent the piston rod 14 from rebounding and damage to the damper housing 11 .
  • the volume compensation device 15 comprises at least one seal 16 which can be moved counter to a force of a spring element 18 during the damping stroke. This way is. the volume of the fluid chamber 12 can be increased during the damping stroke as a function of the plunger piston rod 14 .
  • the fluid chamber 12 can be sealed off from the piston rod 14 and/or from an inner wall 22 of the damper housing 11 by the seal 16 .
  • the seal 16 can be guided over at least one support element 17 in the damper housing 11 . In this way, the seal 16 can be guided in a stable manner in addition to a sealing lip 16c (FIG. 4b) lying against the inner wall 22 of the damper housing 11 .
  • the seal 16 can be reset at least partially into the initial position by at least one spring element 18 .
  • the at least one spring element 18 is combined in one piece with the at least one seal 16 and/or in one piece with the at least one support element 17 to form a common compensation part 119 .
  • the compensation part 19 and the at least one piston 13 can be arranged one behind the other in the damper housing 11 in a longitudinal direction of the piston rod 14 .
  • the compensation part 19 is arranged in the damper housing 11 between the at least one fluid chamber 12 and an air chamber 26 .
  • the at least one spring element 18 combines at least one seal 16 and the at least one support element 17 in one piece to form the common compensation part 19 .
  • the at least one spring element 18 of the compensation part 19 is partially prestressed in the starting position.
  • the spring element 18 is thus already installed in the damper housing 11 with a certain pretension. This prestressing of the spring element 18 is reduced again over time in the event of a possible loss of the hydraulic damping fluid.
  • the seal 16 is pushed up by the spring element 18 in the direction of the piston 13 when the damping fluid is lost, so that the loss of the damping fluid is compensated for and the volume of the fluid chamber 12 is kept constant.
  • Fig. 3b shows the damper 10 according to Fig. 3a with a piston rod 14 immersed in the fluid chamber 12.
  • the additional volume of the piston rod 14 is compensated for by the seal 16 being moved and/or deformed against the force of the spring element 18 and thus the volume of the Fluid chamber 12 can be enlarged.
  • the different degree of deformation of the spring element 18 can be clearly seen from a direct comparison of FIG. 3a with FIG. 3b.
  • the compensation part 19 rests on the at least one cover 24 or can be placed on the at least one cover 24 .
  • the at least one spring element 18 is supported on the at least one cover 24, and/or
  • the at least one cover 24 has an opening for the passage of the piston rod 14, and/or
  • the at least one cover 24 is essentially cylindrical.
  • the piston 13 is pretensioned in the direction of an extended position by a return spring 20 . In this way, after a damping stroke, the piston 13 can be reset at least in sections in the direction of an extended readiness position.
  • the return spring 20 can also be arranged outside of the damper housing 11 or be omitted entirely.
  • FIG. 3c shows the damper 10 according to FIG. 3a, with the difference that the overload safety device 21 integrated in the piston 13 has been omitted. 3c shows the damper 10 with the piston rod 14 in an extended position.
  • At least one flow channel 23a, 23b is provided, through which the damping fluid can flow when the piston 13 is displaced.
  • the damping fluid can flow both through the first flow channel 23a formed between the piston 13 and the inner wall 22 of the damper housing 11 and through the second flow channel 23b of the piston 13 during the damping stroke.
  • FIG. 3d shows the damper 10 according to FIG. 3c in a retracted position of the piston rod 14. It can be seen that the compensation part 19 can be compressed at least in certain areas during the execution of the damping stroke.
  • FIGS. 4a-4f show different compression states of the compensation part 19 of the volume compensation device 15 in a side view and in a cross section.
  • An outer contour of the compensation part 19 can be designed to be essentially rotationally symmetrical in a state of rest.
  • the at least one spring element 18 of the compensation part 19 is essentially funnel-shaped in a cross section, and/or
  • the at least one seal 16 of the compensation part 19 is formed in a cross-section essentially U-shaped, preferably wherein a first leg 16a of the U-shape rests against the piston rod 14 and/or a second leg 16b of the U-shape rests against the inner wall 22 of the damper housing 11, and/or
  • the at least one seal 16 of the compensation part 19 has at least one sealing lip 16c, which is slidably guided along the inner wall 22 of the damper housing 11, preferably wherein the at least one sealing lip 16 and the at least one support element 17 are spaced apart from one another in a longitudinal direction of the piston rod 14, and or
  • the at least one support element 17 of the compensation part 19 is essentially wedge-shaped in a cross section, preferably with a tip of the wedge shape being able to be supported on the inner wall 22 of the damper housing 11 .
  • Fig. 5a shows another exemplary embodiment of a damper 10 with a damper housing 11, a fluid chamber 12 arranged in the damper housing 11, a piston 13 that can be displaced in the fluid chamber 12, and a return spring 20 for returning the piston 13.
  • the volume compensation device 15 comprises a one-piece compensation part 19 which has the seal 16 , the support element 17 and the spring element 18 .
  • the cover 24 has an inner side 28 pointing into the damper housing 11, with at least one convex contour 29 being arranged on the inner side 28 of the cover 24, on which one end 31 of the at least one spring element 18 is pivotably mounted, and/or wherein on the Inside 28 of the cover 24 an inclined surface 30 is arranged, on which an outside of the at least one spring element 18 can be applied in a compressed state.
  • the convex contour 29 arranged on the inner side 28 of the cover 24 ensures that the end 31 of the spring element 18 that rests loosely on the cover 24 has a defined pivot axis on the cover 24 when a damping stroke is carried out. In this way, unnecessary sliding friction of the spring element 18 on the cover 24 is prevented.
  • the inclined surface 30 arranged on the inner side 28 ensures that the spring element 18 has a defined contact surface on the cover 24 during the execution of a damping stroke and/or that a preferred direction for the buckling of the spring element 18 can be determined.
  • FIG. 5b shows the damper 10 according to FIG. 5a with the piston rod 14 in a retracted position.
  • a volume of the damping fluid that can be displaced by the piston rod 14 when it enters the fluid chamber 12 can be compensated for by the volume compensation device 15 .
  • FIG. 6a shows a further exemplary embodiment of a damper 10, the piston rod 14 being in an extended position relative to the damper housing 11.
  • FIG. 6a It can be seen that a free end 31 of the compensation part 19 rests on the inside 28 , preferably on an outermost edge, of the cover 24 and/or can be supported on an inner wall 22 of the damper housing 11 .
  • - has a circumferential surface that is essentially closed in the radial direction, and/or - has a length L in the axial direction, which is at most twice as large as the length of the other components of the
  • Fig. 6b shows the damper 10 with the piston rod 14 in a retracted position relative to the damper housing 11. According to a preferred embodiment it can be provided that the end 31 of the compensation part l9 in all operating positions on the inside 28, preferably on an outermost edge, of the cover 24 and/or can be supported on an inner wall 22 of the damper housing 11 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

L'invention concerne un amortisseur (10), en particulier pour des ferrures de meubles (4), lequel comprend : un boîtier d'amortisseur (11), au moins une chambre de fluide (12) étant agencée dans le boîtier d'amortisseur (11), un fluide d'amortissement placé dans la chambre de fluide (12), au moins un piston (13), qui peut coulisser dans ladite au moins une chambre de fluide (12), de préférence de manière linéaire, une tige de piston (14), reliée audit au moins un piston (13), au moins un dispositif de compensation de volume (15), disposé dans le boîtier d'amortisseur (11) et par lequel un volume du fluide d'amortissement, qui peut être déplacé par la tige de piston (14) lors de l'immersion dans la chambre de fluide (12), peut être compensé, ledit au moins un dispositif de compensation de volume (15) présentant au moins une garniture d'étanchéité (16), par laquelle la chambre de fluide (12) peut être rendue étanche par rapport à la tige de piston (14) et/ou par rapport à une paroi intérieure (22) du boîtier d'amortisseur (11), au moins un élément d'appui (17), par lequel ladite au moins une garniture d'étanchéité (16) peut être guidée dans le boîtier d'amortisseur (11), et au moins un élément ressort (18) , par lequel ladite au moins une garniture d'étanchéité (16) peut être ramenée au moins en partie dans une position de départ après une course d'amortissement réussie, ledit au moins un élément ressort (18) étant regroupé d'un seul tenant avec ladite au moins une garniture d'étanchéité (16) et/ou avec ledit au moins un élément d'appui (17), de manière à former un élément de compensation commun (19), au moins un élément de recouvrement (24) étant destiné à fermer le boîtier d'amortisseur (11), l'élément de compensation (19) reposant ou pouvant être appliqué de manière lâche sur ledit au moins un élément de recouvrement (24).
EP22761349.4A 2021-08-20 2022-08-16 Amortisseur Pending EP4388219A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50681/2021A AT525400A1 (de) 2021-08-20 2021-08-20 Dämpfer
PCT/AT2022/060284 WO2023019281A2 (fr) 2021-08-20 2022-08-16 Amortisseur

Publications (1)

Publication Number Publication Date
EP4388219A2 true EP4388219A2 (fr) 2024-06-26

Family

ID=83149007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22761349.4A Pending EP4388219A2 (fr) 2021-08-20 2022-08-16 Amortisseur

Country Status (6)

Country Link
US (1) US12473767B2 (fr)
EP (1) EP4388219A2 (fr)
JP (1) JP7696057B2 (fr)
CN (1) CN117859014A (fr)
AT (1) AT525400A1 (fr)
WO (1) WO2023019281A2 (fr)

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028002B (de) * 1957-05-14 1958-04-10 Auto Union Gmbh Schwingungsdaempfer, insbesondere fuer Kraftfahrzeuge
JPS51110175A (ja) * 1975-03-24 1976-09-29 Tokico Ltd Shirindasochi
JPS57143369A (en) 1981-03-02 1982-09-04 Shimizu Constr Co Ltd Adhesive for concrete
JPS57143369U (fr) * 1981-03-03 1982-09-08
DE10254375C1 (de) * 2002-04-30 2003-11-13 Zimmer Guenther Vorrichtung zum Dämpfen von Schwenkbewegungen
DE20219411U1 (de) * 2002-05-27 2003-10-16 Mepla-Werke Lautenschläger GmbH & Co. KG, 64354 Reinheim Dämpfungsvorrichtung für bewegliche Möbelteile von Möbelstücken
US6981578B2 (en) * 2003-07-31 2006-01-03 Troy Leiphart Non-pressurized monotube shock absorber
DE202004009535U1 (de) * 2004-06-16 2005-11-10 Alfit Ag Vorrichtung zur Dämpfung bzw. Abbremsung von beweglichen Möbelteilen von Möbelstücken
ITMI20050420A1 (it) * 2005-03-15 2006-09-16 Agostino Ferrari Spa Dispositivo ammortizzante per elementi di arredamento
JP2007255446A (ja) * 2006-03-20 2007-10-04 Fuji Latex Kk ショック・アブソーバ
MY150205A (en) * 2006-05-05 2013-12-13 Harn Marketing Sdn Bhd Fluid damper
KR100760518B1 (ko) * 2006-07-18 2007-09-20 삼성정밀공업 주식회사 가구용 도어의 닫힘 충격 완충 장치
DE102007031175C5 (de) * 2007-07-04 2024-12-05 Günther Zimmer Beschlag mit relativ zueinander schwenkbaren Beschlagteilen und mit einer Verzögerungseinrichtung
AT15239U1 (de) * 2009-03-25 2017-04-15 Blum Gmbh Julius Möbelscharnier
EP2488771B1 (fr) 2009-10-14 2015-04-08 Cultraro Automazione Engineering S.r.l. Amortisseur linéaire
AT510375B1 (de) * 2010-08-27 2018-06-15 Blum Gmbh Julius Möbeldämpfer
CN102287103A (zh) 2011-08-20 2011-12-21 伍志勇 家具铰链结构
ITMI20121122A1 (it) * 2012-06-26 2013-12-27 Salice Arturo Spa Cerniera decelerata per mobili
DE102013001650B4 (de) 2013-01-31 2015-07-23 Günther Zimmer Zylinder-Kolben-Einheit mit Kolbendrossel
JP6093615B2 (ja) 2013-03-27 2017-03-08 Ｋｙｂ株式会社 ストッパ
WO2017083723A1 (fr) * 2015-11-11 2017-05-18 Kyntec Corporation Dispositif d'absorption d'énergie hydraulique pourvu d'un accumulateur pouvant être déplacé
NL2015875B1 (en) * 2015-11-27 2017-06-14 Koni Bv Shock absorber with comfort valve.
US10145162B2 (en) * 2016-03-02 2018-12-04 King Slide Works Co., Ltd. Damping device and furniture hinge comprising the same
CN106678257B (zh) * 2017-01-24 2018-07-06 东南大学 一种体积补偿隔离式单出杆磁流变阻尼器
DE102017114475A1 (de) 2017-06-29 2019-01-03 Druck- und Spritzgußwerk Hettich GmbH & Co. KG Dämpfer
DE102017010876B4 (de) * 2017-11-24 2023-06-01 Günther Zimmer Zylinder-Kolben-Einheit mit lastabhängiger Drossel
DE202018103637U1 (de) 2018-06-26 2019-09-27 Druck- und Spritzgußwerk Hettich GmbH & Co. KG Dämpfer
CN111485783B (zh) 2019-01-28 2021-12-24 川湖科技股份有限公司 缓冲装置
CN111236781A (zh) 2020-03-20 2020-06-05 广东东泰五金精密制造有限公司 一种用于家具的阻尼器结构
EP4198238B1 (fr) * 2021-12-14 2024-06-12 Julius Blum GmbH Amortisseur pour une butée destinée au stockage mobile d'un élément pivotant ou d'un élément d'extraction
DE102022112647A1 (de) * 2022-05-19 2023-11-23 Witzenmann Gmbh Vorrichtung zum Dämpfen von Druckpulsationen
US20240035326A1 (en) * 2022-07-28 2024-02-01 Larson Manufacturing Company Of South Dakota, Llc Fluid damping apparatus
KR20240143500A (ko) * 2023-03-24 2024-10-02 엘지전자 주식회사 냉장고
EP4450907A1 (fr) * 2023-04-20 2024-10-23 LG Electronics Inc. Réfrigérateur
KR20240155679A (ko) * 2023-04-20 2024-10-29 엘지전자 주식회사 냉장고

Also Published As

Publication number Publication date
WO2023019281A3 (fr) 2023-04-13
AT525400A1 (de) 2023-03-15
JP2024530260A (ja) 2024-08-16
JP7696057B2 (ja) 2025-06-19
US20240183209A1 (en) 2024-06-06
WO2023019281A2 (fr) 2023-02-23
CN117859014A (zh) 2024-04-09
US12473767B2 (en) 2025-11-18

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