Classifications

• • 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
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
• • 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
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
  • A47C1/0325—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of clamps or friction locking members
• • 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
  • A47C1/02—Reclining or easy chairs
  • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
  • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
  • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs

Definitions

• T i t e l Seat support for chairs, especially work swivel chairs
• the invention relates to a seat support for chairs, in particular work swivel chairs, which is preferably T-shaped and is supported by a support on a foot frame of the chair, the connection of the support to the seat support being non-positively designed, and the seat support equipped with actuating means triggering its functions is how this seat support is formed by at least two functional parts.
• the seat support which can have a more or less complex mechanism for various functions, depending on the design of the seating furniture, is often T-shaped and is made up of some functional parts, the main ones of which are a so-called base body and a backrest holder.
• the backrest holder is connected to the base body in an articulated manner, and the base body itself is connected to the seat surface by connecting means.
• the support which is preferably non-positively connected to the base body, has a cone on its end facing the base body, which engages non-positively in a conical bush and thereby ensures a firm connection between the support and seat support.
• actuating means are guided through the seat support, one actuating means of which is the release lever for the release mechanism of the gas spring.
• the latter is both articulated to the base body and provided with locking means which hold the respective inclination adjustment of the backrest and / or seat surface.
• a seat support of the type mentioned above in that the functional parts are formed by a base body which can be connected to a support, a seat plate fastening which is connected to it in an articulated manner and a backrest support which is fastened to it in an articulated manner, and that these functional parts are at least a connecting member is assigned, which is fixed to at least one of the functional parts and is movably guided on another functional part, and that for locking the movement of the functional parts the connecting member is assigned an adjusting means on the seat support.
• a seat support is created, which advantageously solves the task as well as being simple in terms of construction and production technology and also has a high level of stability.
• the subdivision of the seat support into individual functional parts also enables the function of the inclination adjustment to be optimized, as a result of which it is accepted by users on the one hand due to its simple handling and the satisfying feeling on the other.
• the U-shaped backrest support with a seat support for work swivel chairs which essentially consists of a base body with end-mounted support, a seat plate attachment and a backrest support and adjusting means for triggering predetermined functions of the seat support is guided to approximately the middle below the seat plate and has an upper cross pin and set back a lower cross pin, of which the upper cross pin articulates the U-shaped seat plate attachment at its rear end, while its front end with the U-shaped base body a further cross pin is articulated, which at an acute angle to the seat plate attachment has a downward end support for a positive connection with the support leg of the seat support and carries a cross pin , which is movable in an arcuate guide of essentially triangular slats, which are connected both to the upper cross bolt of the backrest support and to its lower cross bolt and by means of a clamping means arranged coaxially to the transverse bolt for the positive connection of the slats to the base body against the
• the U-shaped backrest support is articulated to the seat plate fastening with its upper end region and articulated to the U-shaped base body with its lower end region of the vertical webs and, like the seat plate fastening, has a cross bolt on which slats are articulated with link guides that can be moved around a common cross bolt in the base body.
• the lamellae can be strip-shaped, alternately layered and can be slid over one another with their link guides around the transverse bolt in relative movement.
• the cross bolt can simultaneously receive the clamping means for the positive connection of the lamellae to one another and to the base body against the force of a helical spring inserted between the base body and the seat plate attachment.
• the cross bolt can be expediently designed as a sleeve through which a rod is guided, which receives a threaded nut at one end and a clamping sleeve between the threaded nut and the outer lamella, while the opposite end is bent through 180 ° and to Rotation of the rod is inserted into a hole in the base body and in turn carries an adapter sleeve between the outer lamella and the 180 ° bend.
• a molded part can be placed around the cross bolt, which is used to lock a lever serving for height adjustment.
• the strip-shaped lamellae according to the invention are simple to manufacture, require very little space on the assembled seat support and are light in weight.
• the link guides within these strip-shaped slats intersect around the common third cross bolt and allow a relatively large degree of movement due to the long cut guide links.
• differentiated movements of functional parts are possible with this type of lamella as a connecting link between the functional parts.
• the movements of the functional parts take place when the clamping device is released solely by the coil springs used.
• the third cross bolt simultaneously receives the clamping means in the form of a continuous rod which is mounted in sleeves. Examples of the invention are shown in the drawing. It. demonstrate:
• FIG. 1 is a side view of a seat support with the functional parts forming it and the connecting link for the inclination adjustment,
• FIG. 2 shows the seat support according to FIG. 1 with a different connecting link in a side view
• Fig. 3 is a view of the seat support along the line III-III in Fig. 1 and
• FIG. 4 shows a side view of the seat support according to FIG. 1, but with a somewhat modified adjusting member
• Fig. 5 shows the seat support according to the invention in side view
• FIG. 6 shows the seat support in the view of arrow VI according to FIG. 5.
• the seat support 1 is essentially formed by three functional parts, one of which forms the base body 3, another the seat plate attachment 2 and yet another functional part the backrest support 4.
• all functional parts are preferably made of U-shaped profiles and connected to one another via articulated connections 5.
• the base body 3, which represents the base part of the seat support 1, is provided at its freely projecting end with a conical support 6, in which a cone of a support leg 15 of the seating furniture engages in a force-locking manner.
• the other end of this base body 3 is connected in an articulated manner to the seat plate fastening 2 by means of the cross bolt 5, and this is in turn connected in an articulated manner to the backrest support 4.
• the seat support 1 can be adjusted at an inclination so that there is hardly any shear effect between the parts and thus the backrest also does not experience a shear effect against the seat surface.
• the individual functional parts 2-4 are connected to one another via a connecting member 7, in such a way that the kinematics is possible, and the connecting member 7 is fixed to at least one functional part 2, 4 and is movably guided on a further functional part 3 .
• the connecting member 7, which can be designed as a triangular plate pack, is fixed with its two end points on the one hand to the backrest support 4 and on the other to the seat plate attachment 2 via bolts 8, 9.
• the third end point of this plate pack is provided with a link guide 10 and movably guided on a bolt 11 on the base frame 3.
• This articulation of the functional parts 2-4 allows the backrest support 4 to move about its articulation 8 on the seat plate attachment 2, so that when the seat surface 14 resting on the seat plate attachment inclines, the backrest support 4 moves synchronously.
• Such a link 7 would be, for example, a cantilever arm according to FIG. 2, which represents the extension of the backrest support 4.
• This cantilever arm 12 has the linkage 8 to the seat plate attachment 4 and carries in its extension, ie at its free end, the link guide 10 which surrounds the cross bolt 11 of the base body 3.
• the connecting member 7, which can be designed as a plate pack, cantilever arm 12 or other connecting part can be arranged on only one side of the seat support 1 or symmetrically to its longitudinal central axis X. The symmetrical arrangement is advantageous in that it ensures better guidance of the functional parts 2-4 to one another.
• a leg spring 17 can be provided between the base body 3 and the seat plate fastening 2.
• Another leg spring 16 is located between the backrest support 4 and the seat plate attachment 2 for the same reasons.
• the frictional connection of the plate pack 7 takes place in such a way that a screw connection 13 is provided on the seat support 1, which presses the plate together, preferably in the area of the link guide 10.
• a spring can also effect the frictional connection, this constantly exerting its force on the slats 7 and only canceling this force to loosen the same.
• Loosening the screw connection or the tensioning means 13 causes the functional parts 2, 3, 4 to automatically adjust the inclination because of the leg springs 16, 17 inserted between them. The position desired by the operator is locked by the clamping means 13.
• the seat support 18 essentially consists of a horizontally arranged seat plate attachment 19, a base body 20 articulated thereto by a cross pin 22 and a backrest support 21, which is connected to the seat plate attachment 19 by an upper cross pin 24 and by one lower cross bolt 25 is pivotally connected to the base body 20.
• the base body 20 extends from the seat plate attachment 19 at an acute angle downwards in the direction of the backrest support 21.
• the base body 20 has the support 23 at its lower end.
• the backrest support 21 has the actual extension in its rearward extension
• Carrier 33 for the attachment of a backrest not shown.
• Backrest support 21 and support 33 can be screwed together in the simplest form.
• Strip-shaped slats 29 with a link guide 31 are suspended from a cross bolt 26 on the seat plate attachment. Further strip-shaped lamellae 28 with a link guide 30 are fastened to a cross bolt 27 on the backrest support 21.
• the slats 29 and 28 surround with their link guides 30 and 31 the common bolt 25 and are alternately layered one above the other.
• the common cross pin 25 is in principle formed by a rod 36, which belongs to the clamping means 35 and serves to loosen as well as the non-positive connection of the stacked slats.
• the rod 36 has a thread on its outer end, which carries a threaded nut 37.
• a clamping sleeve 38 is inserted between the outer lamella 28 and the threaded nut 37.
• Another clamping sleeve 40 is located on the opposite side between the in turn outer lamella 28 and the 180 ° bend of the rod 36.
• the end piece of the rod 36 engages in a corresponding bore 39 of the base body to prevent the clamping means 35 from rotating 20 a.
• the lever 41 which is also provided in the base body through corresponding bores 42, serves to adjust the height of the seat support 18 with a corresponding effect on the support leg.

Landscapes

• Health & Medical Sciences (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Chair Legs, Seat Parts, And Backrests (AREA)
• Chairs Characterized By Structure (AREA)
• Seats For Vehicles (AREA)
• Chairs For Special Purposes, Such As Reclining Chairs (AREA)
• Sliding-Contact Bearings (AREA)

Priority Applications (5)

Applications Claiming Priority (6)

Publications (1)

Family

ID=27192451

Family Applications (1)

Country Status (7)

Cited By (12)

Families Citing this family (7)

Citations (3)

• 1985
  • 1985-10-24 WO PCT/DE1985/000410 patent/WO1986002536A1/de active IP Right Grant
  • 1985-10-24 EP EP19850905388 patent/EP0198056B1/de not_active Expired - Lifetime
  • 1985-10-24 AU AU50613/85A patent/AU5061385A/en not_active Abandoned
  • 1985-10-25 ES ES1985296394U patent/ES296394Y/es not_active Expired
• 1986
  • 1986-06-25 FI FI862713A patent/FI83023C/fi not_active IP Right Cessation
  • 1986-06-25 NO NO862575A patent/NO167955C/no unknown
  • 1986-06-25 DK DK299586A patent/DK166798B1/da not_active IP Right Cessation
• 1987
  • 1987-02-09 ES ES1987296172U patent/ES296172Y/es not_active Expired

Patent Citations (3)

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