US3347594A - Hydraulic mechanism - Google Patents

Hydraulic mechanism Download PDF

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Publication number
US3347594A
US3347594A US578012A US57801266A US3347594A US 3347594 A US3347594 A US 3347594A US 578012 A US578012 A US 578012A US 57801266 A US57801266 A US 57801266A US 3347594 A US3347594 A US 3347594A
Authority
US
United States
Prior art keywords
lever
pump
chair
movement
seat
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
US578012A
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English (en)
Inventor
Herbert E Werner
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3347594A publication Critical patent/US3347594A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
    • A47C1/11—Accessories not otherwise provided for, e.g. seats for children

Definitions

  • the invention relates to a service chair, for example for hairdressing, with hydraulic or pneumatic operation of the seat by the use of pivoted lever connected to a pump installation.
  • a pivoted lever is connected with the pump installation for the seat through which the seat is moved upwards in steps by movement of the lever, and thereby operation of the pump installation.
  • a special lever is provided through the operation of which the seat is returned in a continuous movement to the rest (lowered) position.
  • a service chair adapted for hydraulic or pneumatic operation under the action of a pivoted lever connected to a pump installation, wherein there is provided on the pivoted lever a movable element which in one position constitutes a stop for the region of movement of the pivoted lever during which such movement causes the upward pumping of the chair seat, and is releasable from such stop position to permit movement of the lever to permit or cause downward movement of the chair seat.
  • the movable element constitutes the release means for additional movement of the pump lever in order to be able to move the chair seat to the lower position.
  • the movable element is located transverse to the long axis of the pump lever and is dis-placeable substantially perpendicularly to the long aXis of the pump lever.
  • This movable element can be provided with an upper attachment, e.g. in the .form of a disc, on which the foot of the operator bears during the pumping-up motion.
  • the movable element may be provided with a lower attachment in the form of a disc.
  • friction increasing means may be provided on one or both of said attachments.
  • FIG. I shows a side view of a complete service chair.
  • FIG. II shows a partial view of the foot of the service chair
  • FIG. III shows a top view of the pump lever, seen in the direction of arrow A of FIG. I.
  • the service chair is provided with a pump lever 11, movable in a vertical plane, which is pivotally fixed to the base of the chair at the pivot X, and which works together with a suitable hydraulic or pneumatic pump apparatus (not shown) for the chair seat.
  • the free end of the movable pump lever 11 is turned through an angle and provided with an extension which takes the form of a profiled tube 12, which can be made from rubber or plastic, or may be covered with rubber or plastic.
  • the pump lever 11 has an aperture, in which is located a displaceable striking pin 13, which is terminated at its end by discs 14 and 15.
  • a pedestal 19 carries a base 18, to which the pump lever 11 together with the abovementioned pasts is movably fixed, and in base 18 there is arranged a hydraulic or pneumaitc apparatus, which operates a pump piston 17, which controls the seat frame or seat attached thereto.
  • the pump lever In order to raise the seat 16, 17, the pump lever is moved over a region designated by a in FIGURE I.
  • the lowering of the seat frame 16, 17 is controlled by the same pump lever 11, by means of a release valve (not shown), and in order to attain this, the pump lever 11 must be pushed beyond region a so that it rests on the foot of the pedestal 19, as shown in FIG. II. Thereby, a release valve is opened, and the seat frame 16, 17
  • the lower disc 15 is provided on itsunderside with a buffer of rubber or a plastic, so that the movement of pump lever 11 by pin 13 down is arrested elastically and softly.
  • the operator need only put his foot on a part of the profiled tube 12 (not covering the disc 14).
  • the pump lever 11 When the pump lever 11 has reached the lower boundary of the movement region a, the operator presses the pump lever 11, with practically no resistance, right to the bottom, whereby the pump lever moves relatively to the stationary and resting pin 13. Thereby the release valve for lowering the seat frame 16, 17 is opened. The movement is continued until the pump lever seats itself on to the upper side of the lower disc 15, where its movement is arrested against the foot of thepedestal 19.
  • the invention provides a simple and reliable construction by which, without the application of any counterpressure or spring elements, first a sure, movement of the pump lever to the bottom of the pump region is secured, and further, through a simple foot movement and setting of the foot on the end 12 of the pump lever a downward movement of the seat frame is realised.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Chairs Characterized By Structure (AREA)
  • Reciprocating Pumps (AREA)
  • Press Drives And Press Lines (AREA)
US578012A 1965-10-01 1966-09-08 Hydraulic mechanism Expired - Lifetime US3347594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESC037804 1965-10-01

Publications (1)

Publication Number Publication Date
US3347594A true US3347594A (en) 1967-10-17

Family

ID=7434448

Family Applications (1)

Application Number Title Priority Date Filing Date
US578012A Expired - Lifetime US3347594A (en) 1965-10-01 1966-09-08 Hydraulic mechanism

Country Status (8)

Country Link
US (1) US3347594A (en])
AT (1) AT274287B (en])
BE (1) BE687559A (en])
CH (1) CH443590A (en])
DE (1) DE1554111A1 (en])
FR (1) FR1503655A (en])
GB (1) GB1117136A (en])
NL (1) NL6613759A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726279B1 (en) * 1997-02-10 2004-04-27 Hill-Rom Services, Inc. Hydraulic controls for ambulatory care chair

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US598877A (en) * 1898-02-08 kollert
US957611A (en) * 1909-09-20 1910-05-10 Karoly Kral Extension-table.
US1072694A (en) * 1913-09-09 Lasting-machine speed-controlling mechanism
US1153759A (en) * 1914-12-31 1915-09-14 Joseph Brunker Fluid-pressure-controlling valve.
US1589333A (en) * 1924-11-10 1926-06-15 Pressluft Und Berieselung Gmbh Hydraulic lifting jack
US1696683A (en) * 1928-12-25 Talking machine
US2183032A (en) * 1938-04-06 1939-12-12 Western Electric Co Control mechanism
US2577539A (en) * 1947-03-13 1951-12-04 Herbert E Page Hydraulic bumper jack
US2803971A (en) * 1954-11-26 1957-08-27 Harlowe B Turner Speed limiting accelerator pedal
US3146592A (en) * 1959-05-20 1964-09-01 F & F Koenigkramer Company Hydraulic lift with rotation lock for beauty chair

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US598877A (en) * 1898-02-08 kollert
US1072694A (en) * 1913-09-09 Lasting-machine speed-controlling mechanism
US1696683A (en) * 1928-12-25 Talking machine
US957611A (en) * 1909-09-20 1910-05-10 Karoly Kral Extension-table.
US1153759A (en) * 1914-12-31 1915-09-14 Joseph Brunker Fluid-pressure-controlling valve.
US1589333A (en) * 1924-11-10 1926-06-15 Pressluft Und Berieselung Gmbh Hydraulic lifting jack
US2183032A (en) * 1938-04-06 1939-12-12 Western Electric Co Control mechanism
US2577539A (en) * 1947-03-13 1951-12-04 Herbert E Page Hydraulic bumper jack
US2803971A (en) * 1954-11-26 1957-08-27 Harlowe B Turner Speed limiting accelerator pedal
US3146592A (en) * 1959-05-20 1964-09-01 F & F Koenigkramer Company Hydraulic lift with rotation lock for beauty chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726279B1 (en) * 1997-02-10 2004-04-27 Hill-Rom Services, Inc. Hydraulic controls for ambulatory care chair

Also Published As

Publication number Publication date
DE1554111A1 (de) 1969-11-20
CH443590A (de) 1967-09-15
GB1117136A (en) 1968-06-19
BE687559A (en]) 1967-03-01
NL6613759A (en]) 1967-04-03
FR1503655A (fr) 1967-12-01
AT274287B (de) 1969-09-10

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