EP1317599B1 - Dämpfermechanismus - Google Patents

Dämpfermechanismus Download PDF

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Publication number
EP1317599B1
EP1317599B1 EP01970762A EP01970762A EP1317599B1 EP 1317599 B1 EP1317599 B1 EP 1317599B1 EP 01970762 A EP01970762 A EP 01970762A EP 01970762 A EP01970762 A EP 01970762A EP 1317599 B1 EP1317599 B1 EP 1317599B1
Authority
EP
European Patent Office
Prior art keywords
plunger
cylinder
damper mechanism
passage
curvature
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.)
Expired - Lifetime
Application number
EP01970762A
Other languages
English (en)
French (fr)
Other versions
EP1317599A1 (de
Inventor
Kyosuke Uemura
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP1317599A1 publication Critical patent/EP1317599A1/de
Application granted granted Critical
Publication of EP1317599B1 publication Critical patent/EP1317599B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • E05F1/1215—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis with a canted-coil torsion spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/06—Devices for limiting the opening movement of 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1008—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis
    • E05F1/1016—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis with a canted-coil torsion spring
    • 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
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/108—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with piston rod protruding from the closer housing; Telescoping closers

Definitions

  • the present invention relates to a damper mechanism having the features of the preamble of claim 1 and that is installed as an accessory on an opening and closing member, such as a door or cover, which turns about a given axis of rotation.
  • a damper mechanism is known from GB-A-650925.
  • the simplest construction in prior-art damper mechanisms used for such a purpose is a single-action damper mechanism having a tubular, closed cylinder and a piston which fits inside the cylinder in a freely slidable manner and divides the interior of the cylinder into two chambers.
  • the two chambers are made to communicate via an orifice provided in the piston.
  • An urging member such as a coil spring, which forces the piston in a first sliding direction is provided within one of the two chambers.
  • a pressure-regulating valve which regulates the opening of the orifice according to the sliding direction of the piston is provided within the orifice. The pressure-regulating valve controls fluid pressure against the piston resisting the applied force.
  • the base of the cylinder and the tip of the piston rod are respectively connected to a stationary side (which is a structure for receiving an opening and closing member) and a movable side (e.g. an opening and closing member such as a door).
  • a stationary side which is a structure for receiving an opening and closing member
  • a movable side e.g. an opening and closing member such as a door.
  • the coil spring acts to close the opening and closing member, in which state the pressure-regulating valve narrows the orifice, thereby slowly closing the member and suppressing the sound of impact at the time of closure.
  • Prior-art damper mechanisms thus have a large number of parts, resulting in a high weight and high production costs.
  • maintenance e.g. maintainability
  • prior art damper mechanisms is a problem due to the many moving parts.
  • a damper mechanism having a cylinder which is open at a first end and closed at a second end and which describes an arc having a predetermined radius of curvature; an arcuate plunger of the same radius of curvature as the cylinder, a first end of the plunger slides within the cylinder in such a manner as to trace an arched path corresponding to the predetermined radius of curvature; a means for urging (e.g.
  • a passage provided at the first end of the plunger, the passage connects the interior of the cylinder that is sectioned by the first end of the plunger to the exterior; and a pressure-regulating valve provided in the passage which valve reduces the cross-sectional area of the passage when the plunger moves in the sliding direction and increases the cross-sectional area of the passage when the plunger moves in the opposite direction.
  • the direction in which the opening and closing member turns is substantially the same as the direction of the force exerted by the urging means (e.g. applied motion), allowing the applied force to be efficiently transferred to the opening and closing member.
  • the cross-sectional area of the passage is reduced by the pressure-regulating valve, causing the opening and closing member to turn slowly.
  • the passage cross-sectional area is increased by the pressure-regulating valve so that the opening and closing member turns in accordance with the force acting upon it.
  • the damper mechanism of the invention can use a torsion coil spring of which respective ends engage a pair of notches formed at a separation of 180 degrees) at one end of the cylinder and one end of the plunger.
  • the 180 degrees occurs between the two notches that are disposed facing each other on the cylinder surface.
  • the center of curvature of the cylinder and the plunger it is preferable for the center of curvature of the cylinder and the plunger to coincide with the center of rotation of the torsion coil spring.
  • the plunger also has formed at the first end thereof a pair of engagement grooves capable of engaging the first end of the torsion coil spring.
  • the casing i.e. the body of the cylinder
  • plunger may be made of a thermoplastic resin.
  • FIGS. 1 to 6 illustrate an embodiment in which the damper mechanism is installed on an opening and closing cover for an enclosure. It should be noted, however, that the present invention is not limited only to embodiments of this type, and can be applied also to other art encompassed by the concepts set forth in the appended claims.
  • FIG. 1 is a perspective view showing the damper mechanism of the present embodiment after it has been installed.
  • FIG. 2 shows the same damper mechanism by itself.
  • a box-like housing 11 has an open end 12 on which a cover 13, which is capable of opening and closing the open end 12 and serves as the opening and closing member of the invention, is pivotally attached via a plurality of hinges 14.
  • a catch (not shown) which, when engaged, keeps the cover 13 shut is provided between the cover 13 and the housing 11. Releasing the catch from its state of engagement allows the cover 13 to be opened.
  • the damper mechanism 15 of the present embodiment is mounted between the housing 11 and the cover 13 and functions so that, when the catch is released from its state of engagement, the cover 13 slowly opens.
  • the damper mechanism 15 includes a cylinder 16 which is of circular cross-section and describes an arc having a predetermined radius of curvature; a mounting bracket 18 which is provided integral with the cylinder 16 for attaching the cylinder 16 to the housing 11 such that the cylinder's center of curvature is concentric with the pivots 17 of the hinges 14; a plunger 19 which is of circular cross-section, describes an arc having the same radius of curvature as the cylinder 16, and the base end of which mates slidably with the cylinder 16 is such a manner as to trace an arched path corresponding to the specific radius of curvature; and, as the moving means of the invention, a torsion coil spring 20 which causes the plunger 19 to protrude from the cylinder 16.
  • This construction enables the cover 13 to move or rotate automatically from a closed state to an approximately 70-degree open state.
  • the outside diameter of the plunger 19 relative to the inside diameter of the cylinder 16 in which it is inserted allows for a suitable gap therebetween of about 0.2 mm when mated. Where necessary, it may be effective to place an O-ring in the gap between the cylinder 16 and the plunger 19.
  • FIG. 3 is a sectional view showing the construction of the mating area between the cylinder 16 and the plunger 19, and FIG. 4 is a sectional view taken along line IV-IV in FIG. 3.
  • One end of a torsion coil spring 20 is fixedly coupled to the tip of the plunger 19 which presses against the cover 13.
  • a second end of the spring 20 engages, or clamps, from either side a pair of parallel notched grooves 21 which face each other along the central axis of curvature of the cylinder 16 and the plunger 19, and each of which extends toward the central axis of curvature.
  • the center portions of these notched grooves 21 open into the cylinder 16.
  • the thickness of the notched grooves 21 is made somewhat larger than the wall thickness of the cylinder 16 so that the plunger 19 slides within the cylinder 16 with the second end of the torsion coil spring 20 pressing against a portion of the plunger periphery at the base end thereof.
  • the base end of the plunger 19 has formed thereon a pair of engagement grooves 22 which face the interior of the cylinder 16 and are capable of engaging the second end of the torsion coil spring 20 through the foregoing notched grooves 21.
  • These engagement grooves 22, like the notched grooves 21, face each other along the central axis of curvature for the cylinder 16 and the plunger 19 and extend in a mutually parallel fashion toward the central axis of curvature.
  • the force exerted by the torsion coil spring 20 is able to displace the plunger 19 so that it protrudes from the cylinder 16
  • engagement of the second end of the torsion coil spring 20 with the engagement grooves 22 prevents further outward movement of the plunger 19.
  • the plunger 19 can be pulled out of the cylinder 16 when a force acts upon the plunger 19 which is larger than the force of engagement associated with the clamping pressure by the second end of the torsion coil spring 20 against the engagement grooves 22.
  • a construction such as this can greatly facilitate assembly of the damper mechanism 15 by insertion of the plunger 19 into the cylinder 16.
  • the coil spring portion of the torsion coil spring 20 is received in notches 23 formed in the housing 11 and the cover 13 such that the center of the spring 20 is concentric with the pivots 17 on the hinges 14.
  • the base portion of the plunger 19 which has been received within the cylinder 16 and partitions the interior of the cylinder 16 into a closed damper chamber 24 has formed therein a passage 25 which connects the damper chamber 24 with the exterior via the interior of the plunger 19.
  • a pressure-regulating valve 26 is installed within this passage 25. The valve reduces the cross-sectional area of the passage 25 when the plunger 19 moves out of the cylinder 16 (i.e. by the moving force of the coil spring 20), and increases the passage cross-sectional area when the plunger 19 moves in the opposite direction.
  • the pressure-regulating valve 26 is a type of poppet valve having on the plunger 19 side a conical first valve body 27, and having on the damper chamber 24 (FIG. 3) side a second valve body 29 with a raised area 28 that forms at all times a gap with the end face at the base of the plunger.
  • the valve 26 is formed of a thermoplastic resin, such as Hytrel® polyester elastomer available from DuPont-Toray Co., Ltd. or Zytel® nylon resin available from E.I. DuPont de Nemours and Co.
  • the valve 26 is squeezed and elastically deformed at one end, in which manner it is forcibly inserted into the passage 25. Once inserted, the valve 26 is designed to move back and forth along the passage 25.
  • FIG. 5 shows the condition of the pressure-regulating valve 26 at this time.
  • the pressure difference between the plunger 19 interior which has been held at atmospheric pressure and the interior of the damper chamber 24 which tends to be under reduced pressure moves the pressure-regulating valve 26 toward the damper chamber 24 side so that the passage 25 is placed in a narrowed state by the first valve body 27.
  • FIG. 6 which depicts the state of the pressure-control valve 26 at this time
  • the interior of the damper chamber 24 is compressed and the pressure therein tends to become higher than atmospheric pressure, thereby moving the pressure-control valve 26 to the plunger 19 side.
  • the passage 25 is held open by the raised area 28 of the second valve body 29, so that air inside the damper chamber 24 is discharged from the passage 25, through the interior of the plunger 19, and out to the exterior, thereby allowing the cover to be easily shut by a force applied against the force of the torsion coil spring 20.
  • the above-described cylinder 16 and plunger 19 are difficult to mass produce from metal due to technical constraints inherent to metal machining processes. However, molds required to shape plastic can be precisely manufactured by numerically controlled machine tools and other suitable equipment. Accordingly, the above-described cylinder 16 and plunger 19 can be precisely made by selecting an appropriate material such as an acetal resin (e.g., Delrin® 500 OP, available from E.I. DuPont de Nemours and Co.).
  • an acetal resin e.g., Delrin® 500 OP, available from E.I. DuPont de Nemours and Co.
  • the damper function is used when opening the cover 13.
  • the reverse namely, to use the damper function when shutting the cover 13.
  • the design of the damper mechanism 15 may be suitably modified according to the particular object on which it is to be used, or the requirements for that object, within the scope of the appended claims.
  • the damper mechanism of the invention has a mating cylinder and a plunger, each with an arcuate shape of the same specific radius of curvature, and the plunger traces an arched path corresponding to the radius of curvature, by mounting the damper mechanism on an opening and closing member so that the center of curvature of the damper mechanism coincides with the turn of the opening and closing member, the direction in which the member turns can be made substantially the same as the direction of the opposing force generated by the damper mechanism.
  • This arrangement allow the invention to provide an efficient damper mechanism having a minimal number of parts.
  • the urging or moving means may be a torsion coil spring, a first end of which engages with a pair of notches formed at a separation of 180 degrees at one end of the cylinder, and a second end of which is coupled to the other end of the plunger.
  • the movement of one sliding end of the plunger with respect to the cylinder can be restricted such as to prevent the plunger from pulling entirely out of the cylinder.
  • the casing and plunger are made of a thermoplastic resin, there is no need for lubrication, making it possible to achieve a maintenance-free lightweight damper mechanism.

Landscapes

  • Fluid-Damping Devices (AREA)

Claims (5)

  1. Dämpfungsmechanismus, der folgendes umfaßt:
    einen Zylinder (16) mit einem kreisförmigen Querschnitt, der an einem ersten Ende offen und an einem zweiten Ende geschlossen ist und der einen Bogen beschreibt, der einen vorher festgelegten Krümmungsradius hat, wobei der Zylinder (16) innerhalb einen bogenförmigen Tauchkolben (19) mit dem gleichen Krümmungsradius wie der Zylinder (16) aufnimmt, wobei ein erstes Ende des Tauchkolbens (19) auf eine solche Weise innerhalb des Zylinders (16) gleitet, daß er einer gebogenen Bahn folgt, die dem vorher festgelegten Krümmungsradius entspricht,
    ein Mittel (20), um den Tauchkolben (19) in einer Gleitrichtung im Verhältnis zum Zylinder (16) zu drücken, dadurch gekennzeichnet, daß
    am ersten Ende des Tauchkolbens (29) ein Durchgang (25) bereitgestellt wird, wobei der Durchgang (25) das Innere des Zylinders (16), das durch das erste Ende des Tauchkolbens (19) abgeteilt wird, mit dem Äußeren verbindet, und daß
    im Durchgang (25) ein Druckregelventil (26) bereitgestellt wird, wobei das Ventil (26) eine Querschnittsfläche des Durchgangs (25) verringert, wenn sich der Tauchkolben (19) in der einen Gleitrichtung bewegt, und die Querschnittsfläche des Durchgangs (25) steigert, wenn sich der Tauchkolben (19) in der entgegengesetzten Richtung bewegt, und dadurch, daß der bogenförmige Tauchkolben (19) einen kreisförmigen Querschnitt hat, so daß der Tauchkolben (19) und sein erstes Ende gleitend mit dem Zylinder (16) zusammenpassen und innerhalb desselben bewegt werden können.
  2. Dämpfungsmechanismus nach Anspruch 1, bei dem das Druckmittel (20) eine Torsionsschraubenfeder (20) hat, die ein erstes Ende, das ein Paar von am Zylinder (16) geformten, gekerbten Rillen (21), die eine Trennung von 180 Grad haben, am ersten Ende des Zylinders (16) in Eingriff nimmt, und ein, an ein Ende des Tauchkolbens (19) gekoppeltes, zweites Ende hat.
  3. Dämpfungsmechanismus nach Anspruch 2, bei dem der Krümmungsmittelpunkt des Zylinders (16) und des Tauchkolbens (19) mit dem Drehungsmittelpunkt der Torsionsschraubenfeder (20) zusammenfällt.
  4. Dämpfungsmechanismus nach Anspruch 2 oder 3, bei dem der Tauchkolben (19) außerdem ein Paar von am ersten Ende desselben geformten Eingriffsrillen (22) hat, die dazu in der Lage sind, das erste Ende der Torsionsschraubenfeder (20) in Eingriff zu nehmen.
  5. Dämpfungsmechanismus nach einem der Ansprüche 1 bis 4, bei dem der Körper des Zylinders (16) und des Tauchkolbens (19) aus einem thermoplastischen Kunstharz hergestellt werden.
EP01970762A 2000-09-11 2001-09-10 Dämpfermechanismus Expired - Lifetime EP1317599B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000275249A JP4633901B2 (ja) 2000-09-11 2000-09-11 ダンパー装置
JP2000275249 2000-09-11
PCT/US2001/028307 WO2002023001A1 (en) 2000-09-11 2001-09-10 A damper mechanism

Publications (2)

Publication Number Publication Date
EP1317599A1 EP1317599A1 (de) 2003-06-11
EP1317599B1 true EP1317599B1 (de) 2005-06-15

Family

ID=18760901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01970762A Expired - Lifetime EP1317599B1 (de) 2000-09-11 2001-09-10 Dämpfermechanismus

Country Status (8)

Country Link
EP (1) EP1317599B1 (de)
JP (1) JP4633901B2 (de)
KR (1) KR100767564B1 (de)
CN (1) CN1250859C (de)
AU (1) AU2001290734A1 (de)
DE (1) DE60111547T2 (de)
HK (1) HK1060167A1 (de)
WO (1) WO2002023001A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60331649D1 (de) 2003-09-25 2010-04-22 Candy Spa Elektrisches Haushaltsgerät mit Tür zum Schliessen eines Innenraums
KR101708679B1 (ko) * 2009-09-14 2017-02-21 엘지전자 주식회사 드럼세탁기
CN102155135A (zh) * 2011-03-28 2011-08-17 江苏广通电力设备有限公司 吊物孔盖板翻转启/闭装置
CN108150033A (zh) * 2017-11-16 2018-06-12 佛山科学技术学院 一种门定位装置和可任意定位的门
JP7112852B2 (ja) 2018-02-16 2022-08-04 センクシア株式会社 調圧弁および油圧ダンパ
CN109057597B (zh) * 2018-09-12 2020-06-12 长乐智睿恒创节能科技有限责任公司 智能开门系统
CN111661168B (zh) * 2020-06-29 2021-06-04 上汽通用汽车有限公司 一种罩盖组件、尾门铰链饰板结构及汽车
CN114046109B (zh) * 2021-11-10 2023-04-14 广东田边建筑五金制品有限公司 一种支撑稳定的平开滑撑结构

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US1678817A (en) * 1927-09-07 1928-07-31 Useful Products Company Doorcheck
GB650925A (en) * 1948-12-06 1951-03-07 Herbert George Thompson Improvements relating to door checks
JPS5189978A (de) * 1975-02-06 1976-08-06
JPS562439U (de) * 1979-06-20 1981-01-10
JPS5951667B2 (ja) * 1979-06-22 1984-12-15 日産自動車株式会社 気筒数制御エンジン
JP3009412B2 (ja) * 1989-10-11 2000-02-14 東レ株式会社 芳香族ポリエステル
JPH03126718U (de) * 1990-03-22 1991-12-20
JP3790300B2 (ja) * 1996-07-26 2006-06-28 株式会社パイオラックス 収納箱のダンパー装置
DE20304498U1 (de) * 2003-03-20 2004-07-29 Arturo Salice S.P.A., Novedrate Adapter für eine Bremsverzögerungsvorrichtung

Also Published As

Publication number Publication date
WO2002023001A1 (en) 2002-03-21
CN1250859C (zh) 2006-04-12
JP4633901B2 (ja) 2011-02-16
KR20030033052A (ko) 2003-04-26
DE60111547T2 (de) 2006-05-11
KR100767564B1 (ko) 2007-10-17
AU2001290734A1 (en) 2002-03-26
DE60111547D1 (de) 2005-07-21
EP1317599A1 (de) 2003-06-11
JP2002106623A (ja) 2002-04-10
CN1455841A (zh) 2003-11-12
HK1060167A1 (en) 2004-07-30

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