DE20000403U1 - Shock absorber - Google Patents

Shock absorber

Info

Publication number
DE20000403U1
DE20000403U1 DE20000403U DE20000403U DE20000403U1 DE 20000403 U1 DE20000403 U1 DE 20000403U1 DE 20000403 U DE20000403 U DE 20000403U DE 20000403 U DE20000403 U DE 20000403U DE 20000403 U1 DE20000403 U1 DE 20000403U1
Authority
DE
Germany
Prior art keywords
strut
elements
support ring
strut according
connecting elements
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
DE20000403U
Other languages
German (de)
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.)
CONCEPT AG ZILINA
Original Assignee
CONCEPT AG ZILINA
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 CONCEPT AG ZILINA filed Critical CONCEPT AG ZILINA
Priority to DE20000403U priority Critical patent/DE20000403U1/en
Priority to DE10047936A priority patent/DE10047936A1/en
Publication of DE20000403U1 publication Critical patent/DE20000403U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/025Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by having a particular shape
    • F16F1/027Planar, e.g. in sheet form; leaf springs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C23/00Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/002Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with separate resilient support elements, e.g. elastomeric springs arranged in a two-dimensional matrix pattern
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18Leaf springs
    • F16F1/185Leaf springs characterised by shape or design of individual leaves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/422Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing the stressing resulting in flexion of the spring
    • F16F1/428Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing the stressing resulting in flexion of the spring of strip- or leg-type springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/02Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
    • F16F3/023Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of leaf springs

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (19)

1. Federbein, insbesondere zur Unterstützung der Matratze eines Bettes, mit einem Basiskörper, einer Auflageplatte und zumindest einem zwischen dem Basiskörper und der Auflageplatte angeordneten Federelement, dadurch gekennzeichnet, daß das Federelement (4) einen unteren Trägerkranz (5) und einen oberen Trägerkranz (6) umfaßt, die mittels mehrerer, voneinander getrennter Strebelemente (7) miteinander verbunden sind.1. Strut, in particular to support the mattress of a bed, with a base body, a support plate and at least one spring element arranged between the base body and the support plate, characterized in that the spring element ( 4 ) has a lower support ring ( 5 ) and an upper support ring ( 6 ) which are connected to one another by means of a plurality of mutually separate strut elements ( 7 ). 2. Federbein nach Anspruch 1, dadurch gekennzeichnet, daß der Basiskörper (2), die Auflageplatte (5) und jedes der zumindest einen Federelemente (4) einstückig ausgebildet sind.2. Strut according to claim 1, characterized in that the base body ( 2 ), the support plate ( 5 ) and each of the at least one spring elements ( 4 ) are integrally formed. 3. Federbein nach Anspruch 2, dadurch gekennzeichnet, daß die Trägerkränze (5, 6) des zumindest einen Federelementes (4) eine konstante Dicke (D) in Richtung einer zentralen Achse (z) und eine konstante Breite in einer zur Z-Achse senkrechten Richtung aufweisen.3. A strut according to claim 2, characterized in that the carrier rings ( 5 , 6 ) of the at least one spring element ( 4 ) have a constant thickness (D) in the direction of a central axis (z) and a constant width in a direction perpendicular to the Z axis Have direction. 4. Federbein nach einem der vorangehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Außenkontur der Trägerkränze (5, 6) des Federelementes (4) im wesentlichen der eines konvexen Vieleckes entspricht.4. Strut according to one of the preceding claims 1 to 3, characterized in that the outer contour of the carrier rings ( 5 , 6 ) of the spring element ( 4 ) corresponds substantially to that of a convex polygon. 5. Federbein nach einem der vorangehenden Ansprüche 1 bis 4, dadurch gekennzeichnet, daß je ein Strebelement (7) an jedem zweiten Vieleck-Abschnitt der Innenkontur eines Trägerkranzes (5, 6) angeordnet ist.5. A strut according to one of the preceding claims 1 to 4, characterized in that a strut element ( 7 ) is arranged on every second polygonal section of the inner contour of a support ring ( 5 , 6 ). 6. Federbein nach einem der vorangehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jedes der Strebelemente (7) des zumindest einen Federelementes (4) V-förmig ausgebildet ist, wobei das Ende des ersten V-Armes an der Innenkontur des oberen Trägerkranzes (6) angeordnet ist, das Ende des zweiten V-Armes an der Innenkontur des unteren Trägerkranzes (5) angeordnet ist, und die Spitze des V- förmigen Strebelementes (7) sich zur Mitte des Federelementes (4) hin erstreckt. 6. Strut according to one of the preceding claims 1 to 5, characterized in that each of the strut elements ( 7 ) of the at least one spring element ( 4 ) is V-shaped, the end of the first V-arm on the inner contour of the upper support ring ( 6 ) is arranged, the end of the second V-arm is arranged on the inner contour of the lower support ring ( 5 ), and the tip of the V-shaped strut element ( 7 ) extends towards the center of the spring element ( 4 ). 7. Federbein nach einem der vorangehenden Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Strebelemente (7) eine, in Richtung der zentralen Achse (z) konstante Breite (B) aufweisen, die geringer ist als die Länge des Konturabschnittes des Trägerkranzes (5, 6), an dem sie angeordnet sind.7. Strut according to one of the preceding claims 1 to 6, characterized in that the strut elements ( 7 ) have a, in the direction of the central axis (z) constant width (B) which is less than the length of the contour portion of the support ring ( 5 , 6 ) on which they are arranged. 8. Federbein nach einem der vorangehenden Ansprüche 1 bis 7, dadurch gekennzeichnet, daß zwei benachbarte Strebelemente (7) im Bereich der Enden ihrer Arme jeweils weiter voneinander beabstandet sind als im Bereich ihrer Spitzen.8. Strut according to one of the preceding claims 1 to 7, characterized in that two adjacent strut elements ( 7 ) are each spaced further apart in the region of the ends of their arms than in the region of their tips. 9. Federbein nach einem der vorangehenden Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Trägerkränze (5, 6) Verbindungselemente (8, 9, 10, 11) aufweisen, mittels der die Federelemente (4) untereinander oder mit dem Basiskörper (2) oder mit der Auflageplatte (3) koppelbar sind.9. Strut according to one of the preceding claims 1 to 8, characterized in that the carrier rings ( 5 , 6 ) have connecting elements ( 8 , 9 , 10 , 11 ) by means of which the spring elements ( 4 ) with each other or with the base body ( 2 ) or can be coupled to the support plate ( 3 ). 10. Federbein nach Anspruch 9, dadurch gekennzeichnet, daß die Verbindungselemente (8) des unteren Trägerkranzes (5) hakenförmig ausgebildet sind und entlang der Innenkontur des Trägerkranzes (5) an den Konturabschnitten ausgebildet sind, die zwischen den Konturabschnitten liegen, an denen die Strebelemente (7) angeordnet sind.10. A strut according to claim 9, characterized in that the connecting elements ( 8 ) of the lower support ring ( 5 ) are hook-shaped and are formed along the inner contour of the support ring ( 5 ) on the contour sections which lie between the contour sections on which the strut elements ( 7 ) are arranged. 11. Federbein nach Anspruch 10, dadurch gekennzeichnet, daß die Verbindungselemente (9) des oberen Trägerkranzes (6) Aussparungen oder Ösenelemente sind, in die die hakenförmigen Verbindungselemente (8) lösbar eingreifen, wobei die Verbindungselemente (9) ebenfalls an den Konturabschnitten ausgebildet sind, die zwischen den Konturabschnitten liegen, an denen die Strebelemente (7) angeordnet sind.11. A strut according to claim 10, characterized in that the connecting elements ( 9 ) of the upper support ring ( 6 ) are recesses or eyelet elements in which the hook-shaped connecting elements ( 8 ) releasably engage, the connecting elements ( 9 ) also being formed on the contour sections , which lie between the contour sections on which the strut elements ( 7 ) are arranged. 12. Federbein nach einem der vorangehenden Ansprüche 9 bis 10, dadurch gekennzeichnet, daß die Verbindungselemente (18) der Auflageplatte (3) hakenförmig und die Verbindungselemente (19) des Basiskörpers (2) ösenförmig oder in Form von Aussparungen ausgebildet sind.12. Strut according to one of the preceding claims 9 to 10, characterized in that the connecting elements ( 18 ) of the support plate ( 3 ) hook-shaped and the connecting elements ( 19 ) of the base body ( 2 ) are eye-shaped or in the form of recesses. 13. Federbein nach Anspruch 9, dadurch gekennzeichnet, daß die Verbindungselemente des unteren Trägerkranzes (5) in Form von Zapfen (11) ausgebildet sind, die je paarweise an der Unterseite des Trägerkranzes (5) mittig zwischen dessen Innen- und Außenkontur in Verlängerung der Seiten der Strebelemente (7) angeordnet sind, und wobei die Höhe der Zapfen (11) in etwa der Dicke (d) des Trägerkranzes (5) entspricht.13. A strut according to claim 9, characterized in that the connecting elements of the lower support ring ( 5 ) are designed in the form of pins ( 11 ), each in pairs on the underside of the support ring ( 5 ) in the middle between its inner and outer contour in extension of Sides of the strut elements ( 7 ) are arranged, and the height of the pins ( 11 ) corresponds approximately to the thickness (d) of the support ring ( 5 ). 14. Federbein nach Anspruch 13, dadurch gekennzeichnet, daß die Verbindungselemente des oberen Trägerkranzes (6) als Durchbruchslöcher gegenüber den Zapfen (11) in dem oberen Trägerkranz (6) ausgebildet sind.14. A strut according to claim 13, characterized in that the connecting elements of the upper support ring ( 6 ) are designed as breakthrough holes with respect to the pin ( 11 ) in the upper support ring ( 6 ). 15. Federbein nach Anspruch 14, dadurch gekennzeichnet, daß die Verbindungselemente der Auflageplatte (3) zapfenförmig und paarweise gegenüber den korrespondierenden Löchern (10) eines Trägerkranzes (6) eines Federelementes (4) ausgebildet sind und daß die Verbindungselemente des Basiskörpers (2) gegenüber korrespondierenden Zapfen (11) eines Trägerkranzes (6) eines Federelementes (4) lochförmig ausgebildet sind.15. A strut according to claim 14, characterized in that the connecting elements of the support plate ( 3 ) are peg-shaped and in pairs opposite the corresponding holes ( 10 ) of a support ring ( 6 ) of a spring element ( 4 ) and that the connecting elements of the base body ( 2 ) opposite corresponding pins ( 11 ) of a carrier ring ( 6 ) of a spring element ( 4 ) are of hole-shaped design. 16. Federbein nach einem der vorangehenden Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Auflageplatte mehrere konzentrische Ringelemente (15) aufweist, die über Radialträgerelemente (16) miteinander verbunden sind.16. Strut according to one of the preceding claims 1 to 15, characterized in that the support plate has a plurality of concentric ring elements ( 15 ) which are interconnected via radial support elements ( 16 ). 17. Federbein nach Anspruch 16, dadurch gekennzeichnet, daß zumindest die Radialträgerelemente (16) in Richtung der Z-Achse elastisch verformbar sind.17. A strut according to claim 16, characterized in that at least the radial support elements ( 16 ) are elastically deformable in the direction of the Z axis. 18. Federbein nach einem der vorangehenden Ansprüche 1 bis 17, dadurch gekennzeichnet, daß der Basiskörper (2) an seiner Unterseite zapfenförmige Befestigungselemente (12) aufweist, mittels der das Federbein (1) an einem Trägergestell montierbar ist.18. Strut according to one of the preceding claims 1 to 17, characterized in that the base body ( 2 ) has on its underside peg-shaped fastening elements ( 12 ) by means of which the strut ( 1 ) can be mounted on a support frame. 19. Bettenrost, insbesondere zur Unterstützung einer Matratze eines Bettes, dadurch gekennzeichnet, daß der Bettenrost ein Trägergestell aufweist, dessen äußere Abmessungen in etwa denen der Matratze entsprechen und daß zwischen Matratze und Trägergestell auf dessen Oberseite eine Vielzahl von Federbeinen (1) gemäß zumindest einem der Ansprüche 1 bis 18 angeordnet sind.19. Bed frame, in particular to support a mattress of a bed, characterized in that the bed frame has a support frame, the outer dimensions of which correspond approximately to those of the mattress and that between the mattress and the support frame on the top thereof a plurality of struts ( 1 ) according to at least one of claims 1 to 18 are arranged.
DE20000403U 2000-01-11 2000-01-11 Shock absorber Expired - Lifetime DE20000403U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE20000403U DE20000403U1 (en) 2000-01-11 2000-01-11 Shock absorber
DE10047936A DE10047936A1 (en) 2000-01-11 2000-09-27 External support spring for mattress for bed has main top plate and main bottom plate, separated by compression spring which consists of hexagonal or polygonal top and bottom plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20000403U DE20000403U1 (en) 2000-01-11 2000-01-11 Shock absorber

Publications (1)

Publication Number Publication Date
DE20000403U1 true DE20000403U1 (en) 2001-05-23

Family

ID=7935762

Family Applications (2)

Application Number Title Priority Date Filing Date
DE20000403U Expired - Lifetime DE20000403U1 (en) 2000-01-11 2000-01-11 Shock absorber
DE10047936A Withdrawn DE10047936A1 (en) 2000-01-11 2000-09-27 External support spring for mattress for bed has main top plate and main bottom plate, separated by compression spring which consists of hexagonal or polygonal top and bottom plates

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE10047936A Withdrawn DE10047936A1 (en) 2000-01-11 2000-09-27 External support spring for mattress for bed has main top plate and main bottom plate, separated by compression spring which consists of hexagonal or polygonal top and bottom plates

Country Status (1)

Country Link
DE (2) DE20000403U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006036721A3 (en) * 2004-09-27 2006-08-03 Nike Inc Impact attenuating devices and products containing such devices
FR2916029A1 (en) * 2007-05-09 2008-11-14 Delahousse Et Fils Sa ELASTIC SUSPENSION BODY OF PLASTIC TYPE OF SPRING TYPE, BALL OR SIMILAR FOR SOMMIER, MATTRESS OR SEAT
US7730635B2 (en) 2004-09-27 2010-06-08 Nike, Inc. Impact-attenuation members and products containing such members
US7798298B2 (en) 2004-09-27 2010-09-21 Nike, Inc. Impact attenuating and spring elements and products containing such elements
CN110566614A (en) * 2019-09-11 2019-12-13 哈尔滨工业大学(深圳) One-way plane torsional spring
US20230286134A1 (en) * 2022-03-10 2023-09-14 John Christian Colley Flexible Structure, Particularly For Applications In Robotics And Orthopedics

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10330644B3 (en) * 2003-07-07 2004-12-30 Fen Gmbh Schlafsysteme Spring element for a cushion pad
US11965573B2 (en) * 2020-08-10 2024-04-23 Accelerated Research LLC Device for attenuating energy
CN112413238B (en) * 2020-11-20 2023-10-24 中国一冶集团有限公司 Pump line shock-absorbing structure

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8650774B2 (en) 2004-09-27 2014-02-18 Nike, Inc. Impact-attenuation members and products containing such members
US8348031B2 (en) 2004-09-27 2013-01-08 Nike, Inc. Impact attenuating and spring elements and products containing such elements
US7458172B2 (en) 2004-09-27 2008-12-02 Nike, Inc. Impact attenuating devices and products containing such devices
US8720085B2 (en) 2004-09-27 2014-05-13 Nike, Inc. Impact attenuating and spring elements and products containing such elements
US7730635B2 (en) 2004-09-27 2010-06-08 Nike, Inc. Impact-attenuation members and products containing such members
US7798298B2 (en) 2004-09-27 2010-09-21 Nike, Inc. Impact attenuating and spring elements and products containing such elements
US8720084B2 (en) 2004-09-27 2014-05-13 Nike, Inc. Impact attenuating and spring elements and products containing such elements
US8146270B2 (en) 2004-09-27 2012-04-03 Nike, Inc. Impact-attenuation members and products containing such members
US7979936B2 (en) 2004-09-27 2011-07-19 Nike, Inc. Methods of making impact attenuating devices and products containing such devices
WO2006036721A3 (en) * 2004-09-27 2006-08-03 Nike Inc Impact attenuating devices and products containing such devices
FR2916029A1 (en) * 2007-05-09 2008-11-14 Delahousse Et Fils Sa ELASTIC SUSPENSION BODY OF PLASTIC TYPE OF SPRING TYPE, BALL OR SIMILAR FOR SOMMIER, MATTRESS OR SEAT
WO2008148992A1 (en) * 2007-05-09 2008-12-11 Delahousse Et Fils Elastic suspension member of plastic material and of the spring or ball and socket type or the like for bed base, mattress or seat
CN110566614A (en) * 2019-09-11 2019-12-13 哈尔滨工业大学(深圳) One-way plane torsional spring
US20230286134A1 (en) * 2022-03-10 2023-09-14 John Christian Colley Flexible Structure, Particularly For Applications In Robotics And Orthopedics
US11780079B2 (en) * 2022-03-10 2023-10-10 John Christian Colley Flexible structure, particularly for applications in robotics and orthopedics

Also Published As

Publication number Publication date
DE10047936A1 (en) 2001-07-12

Similar Documents

Publication Publication Date Title
DE2926987B1 (en) Screening machine screen deck
EP0976884A1 (en) Mobile partition wall
DE20000403U1 (en) Shock absorber
DE3631381C2 (en)
EP0236292A2 (en) Slatted bed base
DE60011742T2 (en) Lying surface of a deformable bed base
DE1903685C2 (en) Metallurgical tilting vessel, in particular converter for refining pig iron
DE29914896U1 (en) Shelving system
EP3021715B1 (en) Spring clip bearing body of a slatted frame
EP1251763A1 (en) Elastic supporting element
DE3508757C2 (en)
WO1979000074A1 (en) Dismountable furniture
DE2412929A1 (en) Dismountable frame
DE3605053A1 (en) METAL HUB FOR A HELICOPTER ROTOR
DE3130218A1 (en) Suspended grill
CH608361A5 (en) Bedstead with transverse slats
DE3738126A1 (en) Spring slat
DE3342370C2 (en)
DE10313346B4 (en) Dismountable table furniture
DE19941772C2 (en) Push-in furniture system with at least two legs
DE8618061U1 (en) Device for supporting vehicles in a stationary working position
DE2835428A1 (en) DECORATION ELEMENT
DE20009724U1 (en) High chair
EP2705777B1 (en) Frame, in particular slatted frame
DE1945843C3 (en) Coupling piece with connection openings for connecting bandage rods to armor supports

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20010628

R150 Term of protection extended to 6 years

Effective date: 20030217

R151 Term of protection extended to 8 years

Effective date: 20051020

R158 Lapse of ip right after 8 years

Effective date: 20080801