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
  • A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C5/00—Chairs of special materials
  • A47C5/14—Chairs of special materials characterised by the use of laminated wood
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C7/00—Parts, details, or accessories of chairs or stools
  • A47C7/02—Seat parts
  • A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C7/00—Parts, details, or accessories of chairs or stools
  • A47C7/02—Seat parts
  • A47C7/16—Seats made of wooden, plastics, or metal sheet material; Panel seats

Definitions

• the invention relates to a seat plate for a chair, armchair or the like provided with a backrest, in particular for an office chair.
• seat plates, chairs, armchairs or the like are known in which the seat plate and backrest are formed as a one-piece piece from plastic, the one-piece piece of plastic being designed essentially in a tub-like shape.
• the transition from the seat plate to the backrest on the side edge section is fully or closed.
• Such plastic rush for the seats are relatively expensive and their production is only worthwhile in large quantities.
• the seat consists of a frame made of steel tubing or the like, on which the seat plate and the Backrest plate made of wood, preferably made of pressed wood, each attached or attached.
• the tubular steel frame represents the statically load-bearing part of the seat or the chair, with the separately attached plates as the seat plate and
• Backrest plate can be kept relatively thin. They are not suitable for seats with a swivel base.
• the object of the invention is to provide a seat with a seat plate and a back plate as an independently supporting part for a column-like base frame, in particular a special rotating base frame, in which the sit and backrest plate can be produced without relatively great effort.
• the seat or the Si plate is characterized according to the invention in that the seat plate and backrest as an angled wooden shell molded part with cross-section - seen in cross section - between the seat plate and backrest plate with edge bends and with led up to the Biegezo ⁇ e Incisions in the edge bends is formed.
• Such a wooden shell molding which is expediently formed from multilayer wood layers, can be made leic from a flat wooden plate.
• the edge bends which are in one piece with the seat plate or the backrest plate, give the wooden shell molding great strength and rigidity.
• the lateral incisions or constrictions in the edge bends enable the seat plate and backrest plate to be bent up from the straight surface into the angled state without the edge bends being compressed in the bending point and the bending can be carried out easily when exposed to steam. You get
• OM, / - WI an inexpensive plate frame with seat plate and backrest plate in one piece.
• the wooden shell molding has such a strength in itself that it can be connected directly to a columnar base or a bogie.
• the wooden shell molding is also relatively light in weight.
• the wooden shell molding is designed to be resilient in the front area of the seat plate in order to avoid a stiff edge for the hollow of the knees of the seated person.
• the front region of the wooden shell seat plate can have a recess over the width thereof and an elastic band or the like along the recess or the like, the band or the belt being made of rubber, resilient plastic, spring steel or the like.
• the band or the belt being made of rubber, resilient plastic, spring steel or the like.
• the front area of the wooden shell seat plate can be divided lengthways from side to side, the sections being made by means of flexible strips, e.g. Belts, spring slats or the like are connected.
• the flexibility of the front area of the wooden shell seat plate is adapted to the respective requirements. In the unused state, the sections that are tightly
• OMPI lie together, kept under tension and, depending on the needs of the seated person, can yield by tilting them accordingly. Furthermore, the front elastically yielding area of the wooden shell seat plate can be slit once or several times in the direction of the seat depth. This results in a locally different flexibility of the plate area in question. There is an individual possibility of adjustment.
• the longitudinal sections should extend across the width of the wooden shell seat plate and can also detect the bending of the edge.
• the wooden shell molding can also be modified to the extent that the seat plate and the back plate are kept separate from one another in the joint zone and are connected by flexible connecting parts, e.g. Steel springs, fins and. Like., Are connected. Furthermore, the edge bends of the seat plate and the back plate can be connected to one another by armrests, wherein the armrests can be screwed or disengaged to the edge bends.
• flexible connecting parts e.g. Steel springs, fins and. Like., Are connected.
• the edge bends of the seat plate and the back plate can be connected to one another by armrests, wherein the armrests can be screwed or disengaged to the edge bends.
• FIG 1 shows an embodiment of the seat plate according to the invention in the diagram and in the scheme.
• Figure 2 shows a seat plate according to the invention with a head part set off on the back plate.
• Figures 3 to 5 illustrate different types of flexible design of the front area of the Seat plate to the elastic yielding a Rocking unte 'in the diagram and in the schema.
• Figure 6 shows a modified embodiment of the wooden shell molding in the diagram schematically.
• the seat plate with backrest of FIG. 1 has a wooden shell molding 1, which is angled around the butt zone lying in cross section between the seat plate 2 and the backrest plate 3 and has edge bends 5 and 6 and incisions 7 in the edge bends which extend to or almost to the bending zone 4.
• the wooden shell molding preferably consists of multilayered wooden layers and can be produced from a flat plate by bending the wooden layers with the appropriate exposure to heat and moisture.
• the wooden shell molding has high strength and rigidity and is extremely load-bearing. It can be supported by a conventional base frame, in particular by a single-column rotating base frame.
• the backrest plate 3 can be equipped with an elongated hole 8 for receiving an adjusting device for an adjustable backrest.
• the slot 8 is expediently surrounded by a recess 8a in which a spring part of an adjustment mechanism and a cover plate can be accommodated.
• the backrest plate 3 has a stepped head piece 9, the backrest plate 3 being able to have a greater height than that without a head piece.
• FIGS. 3 to 5 show wooden shell head pieces 10, 11, 12, in which the seat plate in the front area is designed to be elastically flexible.
• the front area is the Seat plate 2 is provided with a recess 13, along which a flexible strip 14 is stretched.
• a flexible strip can be a belt made of rubber-elastic material. You can also use a spring blade that can be arched in the transverse direction.
• the flexible strip can be connected to the top or bottom of the seat plate 2, for example by screws, rivets or by gluing u. Like ..
• the front region of the seat plate 2 is divided lengthways from side to side, so that there are several sections 16, 17, which also extend over the edge bends 5.
• These sections 16, 17, 18 are connected to each other and to the seat plate 2 by bending parts 19.
• These flexible parts can be in themselves spring straps or spring slats that hold the section 16, 17, 18 together under tension. After the sections have been bent under load, the sections, released by the load, are returned to the plane of the seat plate 2.
• the elastic strips 19 can be attached by screwing, riveting or gluing.
• the embodiment of the wooden shell for part 12 of Figure 5 differs from that of Figure 4 in that the longitudinal sections 16, 17, 18 are divided in the transverse direction. Seen over the length, they can be interrupted one or more times by slots 20. In the illustrated example, the slot 20 is located in the center plane of the longitudinal 'sections 16, 17, 18. As a result, the flexibility of the front portion of the seat Platt 2, seen over the length of the sections, individually different.
• FIG. 6 illustrates an embodiment in which the seat plate 2 and the backrest plate 3 are separate parts, but are in such a connection in the joint zone by means of flexible and elastic connecting parts 21 that the seat plate and the backrest plate remain in the usual angular position to one another.
• the connecting parts 21 advantageously consist of steel spring lamellae which have a corresponding stiffness.
• the backrest and the seat plate are wooden shell parts, and the seat plate 2 can also be equipped with the elastically flexible area in the front part.
• the edge bends 5 and 6 can be kept connected to one another by side rests (not shown) and the side rests can be fastened to the edge bends by screwing on.
• One can also provide a detachable attachment.
• the wooden shell molding can be equipped in any way with a relined cover or with a padding.

Landscapes

• Chair Legs, Seat Parts, And Backrests (AREA)
• Chairs Characterized By Structure (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=41128250

Family Applications (1)

Country Status (10)

Cited By (2)

Families Citing this family (5)

Citations (3)

Family Cites Families (4)

• 1980
  • 1980-05-09 DE DE19808012589U patent/DE8012589U1/de not_active Expired
• 1981
  • 1981-05-08 BE BE0/204744A patent/BE888744A/fr not_active IP Right Cessation
  • 1981-05-08 WO PCT/EP1981/000043 patent/WO1981003114A1/de unknown
  • 1981-05-08 DE DE3118175A patent/DE3118175C2/de not_active Expired - Fee Related
  • 1981-05-08 EP EP81901216A patent/EP0051625A1/de not_active Withdrawn
  • 1981-05-08 PT PT73009A patent/PT73009B/pt unknown
  • 1981-05-08 YU YU01184/81A patent/YU118481A/xx unknown
  • 1981-05-09 ES ES1981267248U patent/ES267248Y/es not_active Expired
  • 1981-05-11 IE IE811051A patent/IE811051L/xx unknown
  • 1981-05-11 GR GR64900A patent/GR75627B/el unknown
  • 1981-05-11 IT IT21624/81A patent/IT1137581B/it active

Patent Citations (3)

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