DE82272C - - Google Patents

Info

Publication number
DE82272C
DE82272C DENDAT82272D DE82272DA DE82272C DE 82272 C DE82272 C DE 82272C DE NDAT82272 D DENDAT82272 D DE NDAT82272D DE 82272D A DE82272D A DE 82272DA DE 82272 C DE82272 C DE 82272C
Authority
DE
Germany
Prior art keywords
spindle
seat
height adjustment
ring
rotation
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.)
Active
Application number
DENDAT82272D
Other languages
German (de)
Publication of DE82272C publication Critical patent/DE82272C/de
Active legal-status Critical Current

Links

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
    • A47C3/24—Chairs or stools with vertically-adjustable seats with vertical spindle
    • A47C3/245—Chairs or stools with vertically-adjustable seats with vertical spindle resiliently supported

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  • Hinges (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die Schraubenspindel für Schreib-, Klavier-, Comptoir-, Arbeits- u. s. w. Stühle besteht aus einer Spindel α mit durchgehender Nuth b, welche mittels der Kopfplatte c am Stuhlsitz befestigt wird.The screw spindle for writing, piano, office, work, etc. chairs consists of a spindle α with a continuous groove b, which is attached to the chair seat by means of the head plate c.

Diese Spindel wird durch ein Gehäuse d geführt, worin die Stellvorrichtung sich befindet. An dem unteren, eingeschraubten, mit einer Klemmschraube festgehaltenen Boden e, verbunden mit dem Sperrring /, sitzt die Spiralfeder i, welche den höher liegenden Sperrring g trägt; an der Innenseite dieses Ringes befindet sich der Keil h, welcher in die Nuth b der Spindel α eingreift. Durch Niederdrücken der Spindel α greift der -obere Sperrring in den unteren, wodurch eine Drehung, somit auch eine Hebung oder Senkung der Spindel verhindert wird.This spindle is passed through a housing d in which the adjusting device is located. On the lower, screwed-in base e, held in place with a clamping screw, connected to the locking ring /, the spiral spring i, which carries the higher-lying locking ring g, is seated; on the inside of this ring is the wedge h, which engages in the groove b of the spindle α. When the spindle α is depressed, the upper locking ring engages the lower one, which prevents the spindle from rotating and thus also preventing it from being raised or lowered.

Zwecks verticaler Führung der Spindel ist oberhalb des Sperrringes g noch der Ring k angebracht, der in seiner Lage durch den am Gehäuse d angegossenen Keil /, welcher sich in die am Ring befindliche Nuth einschiebt, mit dem Gehäuse fest verbunden ist. In dem Ring k ist ein Gewinde eingeschnitten, in welches das Gewinde der Spindel greift, so dafs dieselbe Führung erhält.For vertical guidance of the spindle, the ring k is attached above the locking ring g , which is firmly connected in its position to the housing by the wedge / cast on the housing d , which slides into the groove on the ring. In the ring k a thread is cut into which the thread of the spindle engages so that the same guidance is provided.

Claims (1)

Patent-Anspruch:Patent claim: Eine Feststellvorrichtung für durch Schraubenspindel verstellbare Stühle, dadurch gekennzeichnet, dafs zwei Sperrringe f und g durch eine Feder i aus einander gehalten werden, wobei eine Drehung der Schraubenspindel und eine Höhenverstellbarkeit des Sitzes ermöglicht ist, während bei Benutzung des Stuhles die beiden Sperrringe infolge der Belastung in einander greifen und dadurch eine Drehung bezw. eine Höhenverstellung des Sitzes verhindern. A locking device for chairs adjustable by screw spindles, characterized in that two locking rings f and g are held from each other by a spring i , whereby a rotation of the screw spindle and a height adjustment of the seat is made possible, while when using the chair the two locking rings are due to the load engage in each other and thereby a rotation respectively. prevent height adjustment of the seat.
DENDAT82272D Active DE82272C (en)

Publications (1)

Publication Number Publication Date
DE82272C true DE82272C (en)

Family

ID=354689

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT82272D Active DE82272C (en)

Country Status (1)

Country Link
DE (1) DE82272C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021813A2 (en) * 1979-06-21 1981-01-07 Steelcase Inc. Height adjustable chair base
US4655426A (en) * 1983-11-07 1987-04-07 Eutec Ltd. Adjustable leg for supporting a table

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021813A2 (en) * 1979-06-21 1981-01-07 Steelcase Inc. Height adjustable chair base
EP0021813A3 (en) * 1979-06-21 1981-02-11 Steelcase Inc. Height adjustable chair base
US4655426A (en) * 1983-11-07 1987-04-07 Eutec Ltd. Adjustable leg for supporting a table

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