DE29504987U1 - Electromotive furniture drive - Google Patents
Electromotive furniture driveInfo
- Publication number
- DE29504987U1 DE29504987U1 DE29504987U DE29504987U DE29504987U1 DE 29504987 U1 DE29504987 U1 DE 29504987U1 DE 29504987 U DE29504987 U DE 29504987U DE 29504987 U DE29504987 U DE 29504987U DE 29504987 U1 DE29504987 U1 DE 29504987U1
- Authority
- DE
- Germany
- Prior art keywords
- furniture drive
- limit switches
- switching
- output member
- electromotive furniture
- 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
Links
- 230000001960 triggered effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
- A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
- A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors
-
- 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
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
- A61G7/018—Control or drive mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
- H01H19/18—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
- H01H19/186—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift with travelling nuts
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Elimination Of Static Electricity (AREA)
Description
Elektromotorischer MöbelantriebElectric motor furniture drive
Die vorliegende Erfindung betrifft einen elektromotorischen Möbelantrieb mit einem linear bewegbaren Abtriebsglied, dessen End- und ggf. Zwischenstellungen durch Schaltvorgänge auslösende Endschalter bestimmbar sind.The present invention relates to an electric motor-driven furniture drive with a linearly movable output member, the end and possibly intermediate positions of which can be determined by limit switches that trigger switching operations.
Die in Rede stehenden elektromotorischen Möbelantriebe werden beispielsweise zum Verstellen der schwenkbaren Teile von Lattenrosten, Liegen, Behandlungsstühlen, Sesseln und dergleichen verwendet. Das linear bewegbare Abtriebsglied ist eine gegen Drehung gesicherte, auf einer rotierend antreibbaren Spindel aufgesetzte Mutter. Die beiden Endstellungen und ggf. auch Zwischenstellungen werden durch Endschalter bestimmt, die von der Mutter betätigt werden. Dazu kann die Mutter an der den Endschaltern zugewandten Seite mit einem Nocken oder mit einem Schaltsteg versehen sein. Aufgrund der allgemeinen Schalthysterese wird der Schaltvorgang unterschiedlich ausgelöst und zwar je nach dem, von welcher Seite aus der Endschalter über-The electromotive furniture drives in question are used, for example, to adjust the pivoting parts of slatted frames, couches, treatment chairs, armchairs and the like. The linearly movable output element is a nut secured against rotation and placed on a rotating spindle. The two end positions and possibly also intermediate positions are determined by limit switches that are actuated by the nut. For this purpose, the nut can be provided with a cam or a switching bar on the side facing the limit switches. Due to the general switching hysteresis, the switching process is triggered differently, depending on which side the limit switch is actuated from.
LOESENSECK & STFACKE - PATENTANWAtTE - BELEPELD*LOESENSECK & STFACKE - PATENT WAIVER - BELEPELD*
22. März 1995March 22, 1995
Dewert »· · Beschreibung BlattDewert »· · Description Sheet
."·.: Beschreibung."·.: Description
fahren wird. In der Praxis wird diese Eigenschaft als Schaltspiel bezeichnet. Wenn das Abtriebsglied in Form der Mutter mit einem Schaltsteg versehen ist, entspricht dessen Größe in etwa der Länge der Mutter. Ist sie jedoch mit einem Schaltnocken versehen, ist dieses Schaltspiel aus den Abständen zwischen der Mittel-Längsachse des Nockens und eines Schaltstiftes des Endschalters schon deutlich geringer.will drive. In practice, this property is referred to as switching play. If the output element in the form of the nut is provided with a switching bar, its size corresponds approximately to the length of the nut. However, if it is provided with a switching cam, this switching play is significantly smaller due to the distances between the central longitudinal axis of the cam and a switching pin of the limit switch.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen elektromotorischen Möbelantrieb der eingangs genauer beschriebenen Art so auszubilden, daß das durch die Schalthysterese jedes Schalters bedingte Schaltspiel zumindest verkleinert oder vollständig eliminiert wird.The present invention is based on the object of designing an electromotive furniture drive of the type described in more detail above in such a way that the switching cycle caused by the switching hysteresis of each switch is at least reduced or completely eliminated.
Die gestellte Aufgabe wird gelöst, indem der jeweilige Schaltvorgang durch zwei seitlich versetzt durch das Abtriebsglied betätigbare, in einem bestimmten Abstand zueinander angeordnete Endschalter auslösbar ist.The task is solved by triggering the respective switching process by two limit switches that are arranged at a certain distance from one another and can be actuated laterally by the output member.
Bei dem erfindungsgemäßen elektromotorischen Möbelantrieb wird der Schaltvorgang erst dann ausgelöst, wenn beide Endschalter betätigt sind. Durch die Verknüpfung wird das Schaltspiel eliminiert. Sinngemäß wird durch das Anfahren des zuletzt betätigten Endschalters ein Schaltimpuls gegeben.With the electric motor furniture drive according to the invention, the switching process is only triggered when both limit switches are activated. The switching cycle is eliminated by the link. A switching pulse is given by approaching the last limit switch activated.
In weiterer Ausgestaltung ist vorgesehen, daß der Abstand von zwei einen Schaltvorgang auslösenden Endschaltern annähernd so groß ist, vorzugsweise, bezogen auf die Länge des Abtriebsgliedes, geringfügig kleiner ist als die Länge des Abtriebsgliedes. Dadurch wird die zeitliche Differenz zwischen dem zuerst und zuletzt betätigten Endschalter besonders groß.In a further embodiment, it is provided that the distance between two limit switches that trigger a switching process is approximately as large, preferably slightly smaller, than the length of the output member. As a result, the time difference between the first and last limit switch actuated is particularly large.
Anhand der beiliegenden Zeichnung wird die Erfindung noch näher erläutert. Es zeigt:The invention is explained in more detail with reference to the accompanying drawing. It shows:
Figur 1 einen erfindungsgemäßen elektromotorischen Möbelantrieb in einer Teilansicht.Figure 1 shows an electric motor furniture drive according to the invention in a partial view.
Der Möbelantrieb ist mit einer von einem Getriebemotor antreibbaren Spindel 10 ausgerüstet, auf die eine gegen Drehung gesi-The furniture drive is equipped with a spindle 10 driven by a gear motor, onto which a rotation-proof
LOESENBECK & STRACKE -PATENTANWÄLTE- BELEPELD · ·· · 22. März 1995LOESENBECK & STRACKE -PATENT ATTORNEYS- BELEPELD · ·· · 22 March 1995
Dewert .*'.; ·· ...Beschreibung BlattDewert .*'.; ·· ...Description Sheet
cherte Mutter 11 aufgesetzt ist, die das linear bewegbare Abtriebsglied des Möbelantriebes bildet.secured nut 11, which forms the linearly movable output element of the furniture drive.
Da die Spindel 10 in beiden Drehrichtungen antreibbar ist, kann die Mutter 11 in beiden Richtungen verfahren werden, wie durch den Doppelpfeil angedeutet ist. Der Möbelantrieb ist in nicht dargestellter Weise mit mehreren, paarweise angeordneten Endschaltern ausgerüstet. Der Einfachheit halber sind in der Figur 1 nur zwei Endschalter 12, 13 dargestellt. Die Endschalter 12, 13 sind mit jeweils einem Schaltstift 12a, 13a ausgerüstet. Die Endschalter 12, 13 sind in nicht näher erläuterter Weise schaltungstechnisch verknüpft, um einen Schaltvorgang auszulösen. Die Mutter 11 ist an der den Endschaltern 12, 13 zugewandten Seite mit einem Schaltsteg 14 ausgerüstet, der in beiden Stirnendbereichen abgeschrägt ist. Je nach dem, in welche Richtung die Mutter 11 verfahren wird, wird der zuerst angefahrene Endschalter 12 bzw. 13 betätigt. Der Schaltvorgang wird jedoch erst ausgelöst, wenn der, in Laufrichtung der Mutter 11 gesehen, hintere Schalter betätigt wird.Since the spindle 10 can be driven in both directions of rotation, the nut 11 can be moved in both directions, as indicated by the double arrow. The furniture drive is equipped with several limit switches arranged in pairs (not shown). For the sake of simplicity, only two limit switches 12, 13 are shown in Figure 1. The limit switches 12, 13 are each equipped with a switching pin 12a, 13a. The limit switches 12, 13 are connected in a circuitry manner (not explained in more detail) in order to trigger a switching process. The nut 11 is equipped with a switching bar 14 on the side facing the limit switches 12, 13, which is bevelled in both front end areas. Depending on the direction in which the nut 11 is moved, the limit switch 12 or 13 that is approached first is activated. However, the switching process is only triggered when the rear switch, as seen in the direction of rotation of the nut 11, is actuated.
LOESENBECK & STRACKE - PATÖffANWÄL-&Tgr;&Idigr; -'KELEPELB.* *..* : 22. März 1995LOESENBECK & STRACKE - PATÖffANWÄL-&Tgr;&Idigr; -'KELEPELB.* *..* : 22 March 1995
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29504987U DE29504987U1 (en) | 1995-03-24 | 1995-03-24 | Electromotive furniture drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29504987U DE29504987U1 (en) | 1995-03-24 | 1995-03-24 | Electromotive furniture drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29504987U1 true DE29504987U1 (en) | 1995-07-06 |
Family
ID=8005806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29504987U Expired - Lifetime DE29504987U1 (en) | 1995-03-24 | 1995-03-24 | Electromotive furniture drive |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29504987U1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19803513A1 (en) * | 1998-01-30 | 1999-08-05 | Sta Co Mettallerzeugnisse Gmbh | Modular end position interrogation device |
| DE102009009068A1 (en) * | 2009-02-16 | 2010-08-26 | Barthelt, Hans-Peter, Dipl.-Ing. | Spindelhubmotor |
| ITFI20100209A1 (en) * | 2010-10-14 | 2012-04-15 | Davide Nardini | MECHANICAL ENCODER |
| DE102004041466B4 (en) | 2003-09-12 | 2018-10-18 | Dewertokin Gmbh | Electromotive actuator with control unit for intermediate position and control method |
-
1995
- 1995-03-24 DE DE29504987U patent/DE29504987U1/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19803513A1 (en) * | 1998-01-30 | 1999-08-05 | Sta Co Mettallerzeugnisse Gmbh | Modular end position interrogation device |
| DE102004041466B4 (en) | 2003-09-12 | 2018-10-18 | Dewertokin Gmbh | Electromotive actuator with control unit for intermediate position and control method |
| DE102009009068A1 (en) * | 2009-02-16 | 2010-08-26 | Barthelt, Hans-Peter, Dipl.-Ing. | Spindelhubmotor |
| ITFI20100209A1 (en) * | 2010-10-14 | 2012-04-15 | Davide Nardini | MECHANICAL ENCODER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19950817 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 19980428 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20010424 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20030429 |
|
| R071 | Expiry of right |