CA2248983A1 - Hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object - Google Patents

Hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object

Info

Publication number
CA2248983A1
CA2248983A1 CA002248983A CA2248983A CA2248983A1 CA 2248983 A1 CA2248983 A1 CA 2248983A1 CA 002248983 A CA002248983 A CA 002248983A CA 2248983 A CA2248983 A CA 2248983A CA 2248983 A1 CA2248983 A1 CA 2248983A1
Authority
CA
Canada
Prior art keywords
piston rod
hydraulic
heavy object
hydraulic fluid
piston
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.)
Granted
Application number
CA002248983A
Other languages
French (fr)
Other versions
CA2248983C (en
Inventor
Ole Flemming Brochmann
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DK030096A external-priority patent/DK172403B1/en
Application filed by Individual filed Critical Individual
Publication of CA2248983A1 publication Critical patent/CA2248983A1/en
Application granted granted Critical
Publication of CA2248983C publication Critical patent/CA2248983C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • A47B9/00—Tables with tops of variable height
    • A47B9/02—Tables with tops of variable height with balancing device, e.g. by springs, by weight
    • 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
    • A47B51/00—Cabinets with means for moving compartments up and down
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/04—Extensible bedsteads, e.g. with adjustment of length, width, height
    • A47C19/045—Extensible bedsteads, e.g. with adjustment of length, width, height with entire frame height or inclination adjustments
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
    • B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs Characterized By Structure (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Actuator (AREA)

Abstract

In a hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object, the height level or position it is frequently desired to adjust or change, said system comprising a predetermined amount of hydraulic fluid, a hydraulic fluid accumulator (5), the fluid pressure of which on the hydraulic fluid side is adjustable, a single acting hydraulic cylinder (1, 6, 7, 10, 11, 12, 17) with two end caps (10, 12), a piston pressure chamber (17) and a piston rod (6) which via a piston rod sealing ring (11) extends sealingly out through the one end cap (10) of the cylinder, where the piston pressure chamber (17) is pressure fluid connected to the hydraulic fluid side of the accumulator (5), said system including the combination that the hydraulic cylinder (1, 6, 7, 10, 11, 12, 17) is of the plunger piston type, and that the cylindric tube (1) of the hydraulic cylinder is slideably and telescopically mounted in a cylindrical guiding tube (2), which surrounds the piston rod in its entire length and is rigidly secured to the one end of the piston rod via a cross plate (3A) or similar construction part. Thus, a simple and stable and reliable system is achieved without the need for crank handles, and by which new system the force applied from the plunger piston rod will be essentially constant in all positions of the piston rod at a given load, seeing that the operational manual force necessary for height adjustment of the heavy object becomes low.
CA002248983A 1996-03-15 1997-03-17 Hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object Expired - Fee Related CA2248983C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK030096A DK172403B1 (en) 1996-03-15 1996-03-15 Hydraulic actuator circuit for a lift-lowering system for a work table, reclining furniture or other heavy object
DK300/96 1996-03-15
PCT/DK1997/000117 WO1997034513A1 (en) 1996-03-15 1997-03-17 Hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object

Publications (2)

Publication Number Publication Date
CA2248983A1 true CA2248983A1 (en) 1997-09-25
CA2248983C CA2248983C (en) 2007-05-29

Family

ID=38150835

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002248983A Expired - Fee Related CA2248983C (en) 1996-03-15 1997-03-17 Hydraulic lifting-lowering-system for a working table, a couch or lying furniture or another heavy object

Country Status (1)

Country Link
CA (1) CA2248983C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113123042A (en) * 2021-03-05 2021-07-16 李海宁 Novel dyeing is used in weaving device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107594906A (en) * 2017-09-22 2018-01-19 贵州德鑫冲压有限责任公司 Pressure liftable electric heating tea table

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113123042A (en) * 2021-03-05 2021-07-16 李海宁 Novel dyeing is used in weaving device
CN113123042B (en) * 2021-03-05 2022-12-23 江西江顺纺织有限公司 Novel dyeing is used in weaving device

Also Published As

Publication number Publication date
CA2248983C (en) 2007-05-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed