DE3304016A1 - Concertina grating for producing displacement movements - Google Patents

Concertina grating for producing displacement movements

Info

Publication number
DE3304016A1
DE3304016A1 DE19833304016 DE3304016A DE3304016A1 DE 3304016 A1 DE3304016 A1 DE 3304016A1 DE 19833304016 DE19833304016 DE 19833304016 DE 3304016 A DE3304016 A DE 3304016A DE 3304016 A1 DE3304016 A1 DE 3304016A1
Authority
DE
Germany
Prior art keywords
arms
concertina
arm
joint
grating
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.)
Withdrawn
Application number
DE19833304016
Other languages
German (de)
Inventor
Rudi Dr Baumann
Thomas Prof Dr Herzog
Waldemar Dr Jaensch
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.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19833304016 priority Critical patent/DE3304016A1/en
Publication of DE3304016A1 publication Critical patent/DE3304016A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14Adjustable mountings
    • F21V21/24Lazy-tongs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B43/00Cabinets, racks or shelf units, characterised by features enabling folding of the cabinet or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50Prostheses not implantable in the body
    • A61F2/54Artificial arms or hands or parts thereof
    • A61F2/58Elbows; Wrists ; Other joints; Hands
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/302Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable without ladder-tape, e.g. with lazy-tongs, with screw spindle
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0611Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Transplantation (AREA)
  • Structural Engineering (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gates (AREA)

Abstract

Concertina grating for producing displacement movements, consisting of at least one pair of concertina arms, whose arms are connected to one another in a joined manner at the intersection point, each arm having a Z-shape and consisting of a centre piece (3, 3a) which is bent in a Z-shape and straight-line sub-arms (1a, 1b, 2a, 2b), connected thereto, and the joint (4) being located in the centre of the centre piece (3, 3a) which is bent in a Z-shape, and, in the closed position of the grating, the centre line (9) of the sub-arm running through the hinge point (8) of the sub-arm (1a, 1b, 2a, 2b) being at a distance from the joint (4). <IMAGE>

Description

Scherengitter zur Erzeugung von VerstellbewegungenConcertina gate for generating adjustment movements

Die Erfindung betrifft ein Scherengitter zur Erzeugung von Verstellbewegungen bestehend aus wenigstens einem Scherenarmpaar, dessen Arme an der Kreuzungsstelle gelenkig miteinander verbunden sind.The invention relates to a concertina gate for generating adjustment movements consisting of at least one pair of scissor arms, the arms of which are at the point of intersection are articulated together.

Es sind Scherengitter zur Erzeugung von Verstellbewegungen bekannt, die aus Scherenarmpaaren bestehen, deren Arme geradlinig ausgebildet sind. Ist eine solche Schere eines solchen Scherengitters geschlossen, dann erfordert die Öffnungsbewegung einen relativ großen Kraftaufwand. Trifft die Kraft unmittelbar auf die Gelenkachse auf, denn ist das dffnen praktisch unmdglich, weil der zum öffnen erforderliche Hebelarm nicht auftritt. Es muß dann durch seitlichen Zug an der Schere eine ÖfFnungsbewegung eingeleitet werden. Ist die Öffnungsbewegung eingeleitet, dann ldEt sich allerdings das Scherengitter leichter verstellen.There are concertina bars for generating adjustment movements known, which consist of pairs of scissors arms, the arms of which are straight. Is a such scissors of such a concertina gate closed, then requires the opening movement a relatively large effort. If the force hits the joint axis directly because it is practically impossible to open because it is necessary to open it Lever arm does not occur. There must then be an opening movement by pulling sideways on the scissors be initiated. However, once the opening movement has been initiated, it is ldEt adjust the concertina more easily.

Der Erfindung liegt die Aufgabe zugrunde, ein Scherengitter zur Erzeugung von Verstellbewegungen zu schaffen, bei dem auch in der geschlossenen Stellung des Scherengitters die Kraft zum Üffnen wesentlich herabgesetzt ist. Das wird erfindungsgemäß dadurch erreicht, daß jeder Arm Z-Form aufweist und aus einem Z-förmig abgewinkelten Mittelstück mit daran anschließenden geradlinigen Teilarmen besteht und daß das Gelenk in der Mitte des Z-förmig abgewinkelten Mittelstückes liegt und daß in geschlossener Stellung des Gitters die durch die Anlenkstelle des Teilarmes laufende Mittellinie des Teilarmes einen Abstand zum Gelenk aufweist. Im einzelnen ist die Ausbildung dabei so getroffen, daß das abgewinkelte Mittelstück unter einem stumpfen Winkel, höchstens unter einem rechten Winkel zu den Teilarmen steht.The invention is based on the object of producing a concertina gate to create of adjustment movements, in which also in the closed position of the The opening force is significantly reduced. That is according to the invention achieved in that each arm has a Z-shape and angled from a Z-shape Middle piece with adjoining straight partial arms and that the Joint is in the middle of the Z-shaped angled middle piece and that in closed Position of the grid is the center line running through the articulation point of the partial arm of the partial arm is at a distance from the joint. In detail is the training hit in such a way that the angled middle section is at an obtuse angle, is at most at a right angle to the partial arms.

Fig. 1 zeigt ein Scherenarmpaar in geschlossener Stellung; Fig. 2 zeigt das Scherenarmpaar in zum Teil geöffneter Stellung; Fig. 3 zeigt ein Scherengitter beispielsweise zur Erzeugung der Vestellbewegung bei Jalousien oder Rolläden; Fig. 4 zeigt das Scherengitter in einer zum Teil geöffneten Stellung; Fig. 5 zeigt das Scherengitter in völlig geöffneter Stellung. Fig. 1 shows a pair of scissor arms in the closed position; Fig. 2 shows the pair of scissor arms in a partially open position; Fig. 3 shows a concertina grille, for example, for generating the adjustment movement in blinds or shutters; 4 shows the concertina gate in a partially open position; Fig. 5 shows the concertina gate in a fully open position.

Wie Fig. 1 zeigt, besteht das Scherenarmpaar aus den Scherenarmen 1 und 2. Die Scherenarme besitzen dabei Z-Form. Im einzelnen besteht jeder Arm aus dem Z-förmig abgewinkelten Mittelstück 3 bzw. 3a und den daran anschließenden geradlinigen Teilarmen la, Ib bzw. 2a, 2b. Im Bereich des Z-förmig abgewinkelten Mittelstückes 3 bzw. 3a, vorzugsweise in der Mitte, liegt dabei das Gelenk 4. Das abgewinkelte Mittelstück 3 bzw.As FIG. 1 shows, the pair of scissor arms consists of the scissor arms 1 and 2. The scissor arms have a Z-shape. In detail, each arm consists of the Z-shaped angled center piece 3 or 3a and the straight line adjoining it Part arms la, Ib or 2a, 2b. In the area of the Z-shaped angled middle section 3 or 3a, preferably in the middle, is the joint 4. The angled Middle piece 3 resp.

3a steht dabei unter einem stumpfen Winkel 6 bzw. 7 zu den Teilarmen ia, Ib bzw. 2a, 2b. In geschlossener Stellung des Gitters weist die Mittellinie 9 des Teilarmes la, Ib, die durch die Anlenkstelle B läuft, einen Abstand vom Gelenk 4 auf.3a stands at an obtuse angle 6 or 7 to the partial arms ia, Ib and 2a, 2b, respectively. In the closed position of the grille, the center line points 9 of the partial arm la, Ib, which runs through the articulation point B, a distance from the joint 4 on.

In der geschlossenen Stellung des Scherenarmpaares ergibt sich, daß bei Einwirkung einer Kraft P zum Zwecke der Öffnung des Scherenarmpaares in bezug auf das Gelenk 4 ein Drehmoment entsteht, das durch den Hebelarm 5 zustandekommt Das heißt, daß auch in der geschlossenen Stellung zum Zwecke des Cffnens des Scherenarmpaares ein Drehmoment zur Verfugung steht, was darauf zurückzuführen ist, daß der Scherenarm Z-förmig abgewinkelt ist. Es versteht sich von selbst, daß die beiden Scherenarmpaare hinsichtlich der Z-förmigen Abwinklung gegensätzlich abgewinkelt sind.In the closed position of the pair of scissors arms it follows that in relation to the action of a force P for the purpose of opening the pair of scissor arms a torque arises on the joint 4, which is achieved by the lever arm 5 That means that also in the closed position for the purpose of opening the pair of scissor arms a torque is available, which is due to the fact that the scissor arm Is angled in a Z-shape. It goes without saying that the two pairs of scissor arms are oppositely angled with regard to the Z-shaped bend.

Die Fig. 2 zeigt das Scherenarmpaar in zum Teil geöffneter Stellung.Fig. 2 shows the pair of scissor arms in a partially open position.

Fig. 3, 4 und 5 zeigen Scherengitter aus solchen Scherenarmpaaren in geschlossener Stellung (Fig. 3), in teilweise geöffneter Stellung (Fig. 4) und in völlig geöffneter Stellung (Fig. 5).3, 4 and 5 show concertina gates made of such pairs of scissor arms in the closed position (Fig. 3), in the partially open position (Fig. 4) and in the fully open position (Fig. 5).

Solche Scherengitter zur Erzeugung von Verstellbewegungen können beispielsweise zur Verstellung von Jalousien, Rolläden verwendet werden. Es können aber auch Tragarme aus solchen Scherengittern erstellt werden und z.S. im Prothesenbau Anwendung finden. Schließlich können auch solche Tragarme aus solchen Scherengittern im Haushalt Anwendung finden, beispielsweise zur Halterung von Lampen, für Ablagen, beispielsweise für Telefonbücher oder für Telefone oder dergleichen. Such concertina gates for generating adjustment movements can be used, for example, to adjust blinds and shutters. However, support arms can also be created from such scissor bars and used, for example, in the construction of prostheses. Finally, such support arms made from such concertina bars can also be used in the household, for example for holding lamps, for shelves, for example for telephone books or for telephones or the like.

- Leerseite -- blank page -

Claims (2)

Ansprüche 1 Scherengitter zur Erzeugung von Verstellbewegungen, be stehend aus wenigstens einem Scherenarmpaar, dessen Arme an der Kreuzungsstelle gelenkig miteinander verbunden sind, d a d u r c h g e k e n n z e i c h n e t , daß jeder Arm Z-Form aufweist und aus einem Z-förmig abgewinkelten Mittelstück (3, 3a) und daran anschliessenden geradlinigen Teilarmen (1a, Ib, 2a, 2b) besteht und daß das Gelenk (4) in der Mittel des Z-förmig abgewinkelten Mittelstückes (3, 3a) liegt und daß in geschlossener Stellung des Gitters die durch die Anlenkstelle (8) des Teilarmes (1a, Ib, 2a, 2b) laufende Mittellinie (9) des Teilarmes einen Abstand zum Gelenk (4) aufweist. Claims 1 concertina gate for generating adjustment movements, be standing from at least one pair of scissor arms, whose arms are at the point of intersection are articulately connected to each other, that is, that each arm is Z-shaped and consists of a Z-shaped angled middle piece (3, 3a) and subsequent straight sub-arms (1a, Ib, 2a, 2b) and that the joint (4) in the middle of the Z-shaped angled middle piece (3, 3a) is and that in the closed position of the grille, through the articulation point (8) of the partial arm (1a, Ib, 2a, 2b) running center line (9) of the partial arm a distance to the joint (4). 2. Scherengitter nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das Z-förmig abgewinkelte Mittelstück (3, 3a) unter einem stumpfen Winkel, höchstens unter einem rechten Winkel zu den Teilarmen (1a, Ib, 2a, 2b) steht.2. concertina gate according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the Z-shaped angled middle piece (3, 3a) under a blunt Angle, at most at a right angle to the partial arms (1a, Ib, 2a, 2b).
DE19833304016 1983-02-07 1983-02-07 Concertina grating for producing displacement movements Withdrawn DE3304016A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833304016 DE3304016A1 (en) 1983-02-07 1983-02-07 Concertina grating for producing displacement movements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833304016 DE3304016A1 (en) 1983-02-07 1983-02-07 Concertina grating for producing displacement movements

Publications (1)

Publication Number Publication Date
DE3304016A1 true DE3304016A1 (en) 1984-08-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833304016 Withdrawn DE3304016A1 (en) 1983-02-07 1983-02-07 Concertina grating for producing displacement movements

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19923257A1 (en) * 1999-05-20 2000-11-23 Sabine Wald Adjustable expanding frame for supporting camping tables or for use as dryer for washing consists of legs joined together at ends and in middle so that they can pivot, end legs being connected to enclosing central space
EP1223378A1 (en) * 2001-01-15 2002-07-17 Oliver Michl Pantograph

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19923257A1 (en) * 1999-05-20 2000-11-23 Sabine Wald Adjustable expanding frame for supporting camping tables or for use as dryer for washing consists of legs joined together at ends and in middle so that they can pivot, end legs being connected to enclosing central space
EP1223378A1 (en) * 2001-01-15 2002-07-17 Oliver Michl Pantograph
WO2002055930A2 (en) * 2001-01-15 2002-07-18 Oliver Michl Zigzag structure
WO2002055930A3 (en) * 2001-01-15 2002-09-19 Oliver Michl Zigzag structure

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