EP3019049B1 - Federkern - Google Patents

Federkern Download PDF

Info

Publication number: EP3019049B1
Authority: EP; European Patent Office
Prior art keywords: springs; spring core; spring; row; core according
Prior art date: 2013-07-09
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.): Not-in-force

Application number

EP14736834.4A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP3019049A1 (de

Inventor

Wolfgang Grothaus

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.)

Agro Holding GmbH

Original Assignee

Agro Holding GmbH

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.)

2013-07-09

Filing date

2014-07-08

Publication date

2017-10-11

2014-07-08 Application filed by Agro Holding GmbH filed Critical Agro Holding GmbH

2014-07-08 Priority to PL14736834T priority Critical patent/PL3019049T3/pl

2016-05-18 Publication of EP3019049A1 publication Critical patent/EP3019049A1/de

2017-10-11 Application granted granted Critical

2017-10-11 Publication of EP3019049B1 publication Critical patent/EP3019049B1/de

Status Not-in-force legal-status Critical Current

2034-07-08 Anticipated expiration legal-status Critical

Links

238000007373 indentation Methods 0.000 claims description 2
239000000725 suspension Substances 0.000 description 5
238000013316 zoning Methods 0.000 description 4
238000004519 manufacturing process Methods 0.000 description 3
230000001154 acute effect Effects 0.000 description 1
238000004026 adhesive bonding Methods 0.000 description 1
238000000576 coating method Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
239000000463 material Substances 0.000 description 1
239000002184 metal Substances 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
238000005476 soldering Methods 0.000 description 1
239000004753 textile Substances 0.000 description 1
238000003466 welding Methods 0.000 description 1

Images

Classifications

- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/065—Spring inlays of special shape
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/07—Attaching, or interconnecting of, springs in spring inlays
- 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
- A47C7/24—Upholstered seats
- 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
- A47C7/34—Seat parts with springs in compression, e.g. coiled

Definitions

the invention relates to a spring core according to the preamble of claim 1.
Spring cores are used in different areas. Examples of spring cores for upholstered furniture, but especially for mattresses called.
the individual springs are made of wire, usually metal wire, which is helically wound.
Bonnell spring cores several springs are joined in a row and connected by helically wound wires which engage in end rings of the individual springs.
the invention has for its object to further develop a spring core of the generic type so that it is easier and cheaper to produce and different spring characteristics are easily adjustable.
Such a spring core can be varied without changing the spatial shape of the individual springs in its suspension behavior, as needed, wherein not only one spring core can be produced substantially without additional effort, which is different from another, but also spring cores with partially different suspension behavior.
This notch is formed by two legs which enclose an angle ⁇ 90 °.
the tip of the notch protrudes beyond the center of the formed ring.
the length of the lever arm formed by the legs and thus changes under load the effective moment or it changes the spring characteristic accordingly.
a plurality of parallel and spaced apart springs are connected by preferably two connecting elements in such a way that a permanently accurate position is ensured to each other.
the connecting elements in particular in the form of rods can be positively attached to the springs.
the connecting elements in principle, however, is also an integral connection such as gluing welding or soldering.
this compound is less suitable for a series product, since it can only be produced with a relatively high outlay.
the springs of a row can be congruent to each other, ie, the notches of all springs are aligned so that the spring characteristic is changed in total by turning the row.
a zonation which remains constant over the entire extent of the row can be achieved, this extent usually determining the width of the spring core.
a cost advantage compared with the prior art is that the same springs can be used for all needs.
FIG. 1 a spring core is shown, with a plurality of spring rows 1 arranged parallel to each other, each of which consists of a plurality of interconnected individual springs 3, wherein the spring rows 1 are each held on a peripheral frame 2 on top and bottom sides.
Each spring 3 is configured as a ring arranged upright in the direction of loading and consisting of an elastically deformable wire, with a notch 4 pointing in the contour progression.
the springs 3 a spring row 1, which are arranged parallel and distant from each other, by a rod 5, preferably also made of wire, connected to each other, for which purpose the wire of the spring 3 in the sense of a knot 6 is looped.
each node 6 is arranged in an indentation of the spring 3 so that the rod 5 engages in a countersunk manner.
rods 5 are provided on two mutually opposite sides, so that spring row 1 results in a stable construct.
the springs 3 are shown in different rotated positions with a different positioning of the notch 4. Depending on the position of the spring 3 and the notch 4, the spring characteristic of the spring changes. 3
the notch 4 is formed by two acute angles to each other legs 7, the apex of which lies outside the center of the circular arc-shaped spring 3 and that goes beyond this.
the spring is characterized by its so-called softness, in which it largely deformed in the loading direction.
FIGS. 4b ) and 4c ) show contrast to the imaginary center axis twisted springs 3, with the resulting positions of the notches 4 and, based on the load B, a smaller-acting lever by the position of the legs 7, wherein the Figure 4c ) reflects the position in which the springs 3 have the greatest hardness.
the springs 3 are arranged so that they engage in the spaces formed between the individual springs 3 of the adjacent spring rows 1, so that there is a relatively closed bearing surface.

Landscapes

Springs (AREA)

EP14736834.4A 2013-07-09 2014-07-08 Federkern Not-in-force EP3019049B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL14736834T PL3019049T3 (pl)	2013-07-09	2014-07-08	Rdzeń sprężynowy

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE102013107257.7A DE102013107257A1 (de)	2013-07-09	2013-07-09	Federkern
PCT/EP2014/064649 WO2015004155A1 (de)	2013-07-09	2014-07-08	Federkern

Publications (2)

Publication Number	Publication Date
EP3019049A1 EP3019049A1 (de)	2016-05-18
EP3019049B1 true EP3019049B1 (de)	2017-10-11

Family

ID=51162815

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP14736834.4A Not-in-force EP3019049B1 (de)	2013-07-09	2014-07-08	Federkern

Country Status (5)

Country	Link
US (1)	US20160150892A1 (pl)
EP (1)	EP3019049B1 (pl)
DE (1)	DE102013107257A1 (pl)
PL (1)	PL3019049T3 (pl)
WO (1)	WO2015004155A1 (pl)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3638254A (en) *	1970-05-15	1972-02-01	Uniroyal Inc	Spring
US4675927A (en) *	1983-09-14	1987-06-30	Mizelle Ned W	Bedding units and springs therefor
FR2856563A1 (fr) *	2003-06-27	2004-12-31	Onitis Sa	Structure de suspension comportant des ressorts helicoidaux

2013
- 2013-07-09 DE DE102013107257.7A patent/DE102013107257A1/de not_active Withdrawn
2014
- 2014-07-08 EP EP14736834.4A patent/EP3019049B1/de not_active Not-in-force
- 2014-07-08 WO PCT/EP2014/064649 patent/WO2015004155A1/de active Application Filing
- 2014-07-08 US US14/903,494 patent/US20160150892A1/en not_active Abandoned
- 2014-07-08 PL PL14736834T patent/PL3019049T3/pl unknown

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number	Publication date
US20160150892A1 (en)	2016-06-02
PL3019049T3 (pl)	2018-03-30
EP3019049A1 (de)	2016-05-18
WO2015004155A1 (de)	2015-01-15
DE102013107257A1 (de)	2015-01-15

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