EP0471984A1 - Zeichenkopf für eine Zeichenmaschine - Google Patents

Zeichenkopf für eine Zeichenmaschine Download PDF

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Publication number
EP0471984A1
EP0471984A1 EP91111915A EP91111915A EP0471984A1 EP 0471984 A1 EP0471984 A1 EP 0471984A1 EP 91111915 A EP91111915 A EP 91111915A EP 91111915 A EP91111915 A EP 91111915A EP 0471984 A1 EP0471984 A1 EP 0471984A1
Authority
EP
European Patent Office
Prior art keywords
drawing head
actuating element
head according
actuating
braking
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Withdrawn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
EP91111915A
Other languages
German (de)
English (en)
French (fr)
Inventor
Uwe Jopt
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.)
Franz Kuhlmann Praezisionsmechanik und Maschinenbau GmbH and Co KG
Original Assignee
Franz Kuhlmann Praezisionsmechanik und Maschinenbau GmbH and Co KG
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 Franz Kuhlmann Praezisionsmechanik und Maschinenbau GmbH and Co KG filed Critical Franz Kuhlmann Praezisionsmechanik und Maschinenbau GmbH and Co KG
Publication of EP0471984A1 publication Critical patent/EP0471984A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/08—Protractor heads

Definitions

  • the invention relates to a drawing head for a drawing machine with a handle organ with a plurality of actuating elements arranged on the handle organ and operable by a user hand resting on the handle organ for executing various switching states, such as e.g. Unlatching, releasing, braking the normal side or releasing the normal side of the drawing head, at least one actuating element for releasing and / or releasing the normal side of the drawing head and an actuating element for braking the normal side of the drawing head are provided.
  • various switching states such as e.g. Unlatching, releasing, braking the normal side or releasing the normal side of the drawing head, at least one actuating element for releasing and / or releasing the normal side of the drawing head and an actuating element for braking the normal side of the drawing head are provided.
  • Such a character head is e.g. known from DE-OS 32 02 243, in which two actuating elements, namely pushbuttons, are arranged on the side of the handle organ and, when actuated, can be displaced approximately parallel to the drawing plane in order to set the various switching states of the drawing head.
  • the normal side of the drawing head can be unlocked and released in an overtravel position.
  • the other actuating element the normal side of the drawing head can be braked in the current position.
  • the actuating elements are arranged in such a way that they can be actuated by the fingertips of a user hand resting on the handle organ.
  • the actuators are operated with the thumb, while the remaining fingers are used to hold the grip organ and to rotate the drawing head. After unlocking or unlocking the normal side of the drawing head, it often happens during use that the drawing head is rotated by the user hand resting on the grip organ and holding it in a position in which the thumb and the other fingers are no longer within reach of the other actuator for braking the normal side of the drawing head. So that the actuating element for braking the fingers, preferably the thumb, which can be actuated on the user hand resting on the handle organ, their position relative to the handle organ must be changed, which is only possible by pivoting or rotating the user hand relative to the handle organ or even by completely releasing the Grip organ and implementation of the user's hand is possible.
  • the object of the invention is therefore to develop a drawing head of the type mentioned at the outset such that the user hand resting on the handle organ is used for braking, without the position thereof relative to the handle organ having to be changed.
  • the actuating element for unlocking and / or unlocking is preferably arranged in the grip area of the user hand resting on the grip organ.
  • the advantage of the invention is, in particular, that the drawing head can be switched from the user hand resting on the handle organ to a disengaged or unlocked state and can also be held in this state, while at the same time actuating the actuating element for braking with the heel of the hand resting on the handle organ and as a result the drawing head can be braked in the current position set after disengagement, without the position of the user's hand relative to the grip organ having to be changed or even the other hand having to be used.
  • the actuating element for braking always rests against the inner surface of the heel of the hand of the user resting on the grip organ - also when the drawing head is turned. The unlatching and / or unlocking and braking of the normal side of the drawing head can thus only be carried out by the user hand resting on the handle organ, the user hand neither needing to be pivoted relative to the handle organ nor released from it.
  • the actuating element for unlatching and / or releasing is coupled to the actuating element for braking in such a way that when the normal side of the drawing head is released, previously set braking is released.
  • the actuating element for braking on the grip member is arranged in such a way that it can be actuated by means of an actuating force acting perpendicular to the plane of the drawing and the actuating element thereby moving towards the drawing level.
  • This embodiment of the invention has the advantage that no force components that could move the drawing head are effective parallel to the drawing plane when the actuating element for braking is applied. By applying the actuation force perpendicular to the drawing plane, the drawing head remains at the previously set working position.
  • the actuating element for braking is preferably designed as a pivot lever which can be pivoted about a pivot axis running parallel to the plane of the drawing.
  • this actuating element has a thickening at the free end of the pivoting lever, which is partially drawn over the bulge of the handle organ and bears extensively against the inner surface of the user's hand resting on the handle organ.
  • a further preferred embodiment of the invention is characterized in that a first and a second actuating element are arranged opposite one another and have a mutually directed actuation path for unlocking and / or unlocking the normal side of the drawing head, and in that a first switching state is only possible if both actuation elements are actuated simultaneously is adjustable.
  • the advantages of this design are, in particular, that two actuating elements are provided with an opposite movement path on the handle organ and that both actuating elements are actuated simultaneously - and against one another - to set a first switching state, so that the opposing actuating forces acting on the drawing head are canceled. This reliably prevents the drawing head from moving.
  • a second switching state is preferably realized by actuating the first and / or the second actuating element.
  • One of the switching states can particularly preferably also be set in that the first and the second actuating element are jointly placed in an overtravel position, so that this switching state is also set without the unilateral action of the actuating forces.
  • the normal side of the drawing head is preferably activated, so that the normal side can be freely rotated without intervention in the latching positions.
  • This first switching state is set by simultaneously actuating the first and the second actuating element.
  • the normal side of the drawing head can be disengaged from a locked position by actuating the first or the second actuating element.
  • the first and the second actuating element are preferably designed as rocker buttons which can be pivoted about a small pivot angle about pivot pins which are fastened to the handle organ at a predetermined distance from the base plate.
  • All actuating elements are preferably biased into their rest position by means of springs so that they return to their starting position after actuation.
  • the grip element is designed as an elongated bead, the height of which is greater perpendicular to the plane of the drawing than the width parallel to the plane of the drawing.
  • the bead-shaped grip member preferably has a cross section transversely to its longitudinal direction, which approximately has the shape of a U or V profile, the base of the U or V profile being directed upward and being grasped by the palm of the user.
  • the grip organ In the longitudinal direction of the elongated bead, the grip organ has approximately the shape of a circular disk segment.
  • the upward-pointing contour of the bead is approximately circular in its longitudinal direction up to the base plate of the drawing head.
  • a grip organ 4 is fastened, on which the user can grip the drawing head 1 and move it to the desired position when drawing, the underside 3 of the drawing head 1 facing the drawing board of a drawing machine, while the grip organ 4 to the user.
  • a plurality of actuating elements 6, 8, 10 are arranged on the handle organ 4, by means of which the user can switch various switching states, such as unlocking, releasing or braking the normal side and releasing the can realize the braked normal side.
  • the actuating elements 6, 8, 10 act on levers 11, 20, 22, which are operatively connected to the corresponding detents or brakes.
  • the grip element 4 is designed as an elongated bead which extends along a longitudinal axis 5 and whose height H perpendicular to the drawing board plane is greater than its width B parallel to the drawing board plane. 4 has a cross-section running transversely to the longitudinal axis 5, which approximately corresponds to an overturned or inverted V or U profile, with the height of the grip organ 4 being a function of the respective position on the longitudinal axis 5 in the embodiment shown is. In the side view shown in FIG. 1, the grip organ 4 has an upper contour which, at least in sections, has the shape of a circular section.
  • the crest of the grip organ 4 extends from its maximum height H in a circular arc to the base plate 2 of the drawing head, from the maximum height H the grip organ 4 also falls in the longitudinal direction to the other side in a plane 4b to the base plate 2.
  • the first actuating element 6 and the second actuating element 8 are designed as a push button or rocker button, both of which are pivotably mounted about their own pivot axis 6a, 8a fastened to a bracket 5a.
  • the two actuating elements 6, 8 are arranged such that they lie opposite one another and have an actuating path directed towards one another transversely to the longitudinal axis 5, a first switching state being able to be set only when the two actuating elements 6, 8 are actuated simultaneously.
  • a second switching state can be set when one of the two actuating elements is actuated, and a third switching state when the other actuating element 6, 8 is actuated.
  • the actuating elements 6, 8 act via a transmission gear, which e.g.
  • the rods 20, on which the actuating elements 6, 8 act can also be designed such that the second switching state when the first or the second is actuated Actuator is adjustable.
  • the actuating elements 6, 8 preferably act against springs (not shown), and the first switching state can only be set when the two actuating elements 6, 8 have a predetermined end position, e.g. reach an overtravel position, e.g. is obtained only when the key is pressed, the actuating elements 6, 8 being pushed back into their starting position by the springs after the end position has been reached.
  • a third actuating element 10 is arranged on the handle member 4 so that its actuating path has the essential path component perpendicular to the plane of the drawing, so that when this actuating element is actuated, forces act essentially only perpendicular to the plane of the drawing board on the drawing head.
  • the third actuating element 10 is designed as a swivel lever which can be swiveled about a swivel axis 14 which runs parallel to the drawing board plane and is fastened in the grip member.
  • the pivot lever 10 is guided - approximately in the middle - in the interior of the handle member 4 and projects through a longitudinal gap through the crest of the handle member 4 to the outside.
  • a thickening 12 is provided which partially engages around the ridge 4a of the bead-shaped grip member 4.
  • the third actuating element 10 can be actuated against the action of a spring 18; it is returned to the rest position by the spring 18 after the actuation.
  • the actuator 10 acts e.g. via a toggle lever 11 and a rack 11 on the actuating elements of the drawing head.
  • the first switching state which is achieved when the first and the second actuating element are actuated simultaneously, is used to unlock the normal side of the drawing head.
  • the normal side of the drawing head In the second switching state, the normal side of the drawing head is only unlatched, so that the normal side snaps back into the next latching position after rotation by a predetermined angle.
  • the third actuating element 10 is used to set the third switching state in which the normal side is braked. With the setting of the first switching state (activation of the normal side), a previously set third switching state (braking of the normal side) is canceled, so that when the first two actuating elements are actuated, a previously braked drawing head is also activated.

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP91111915A 1990-08-16 1991-07-17 Zeichenkopf für eine Zeichenmaschine Withdrawn EP0471984A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4025886A DE4025886A1 (de) 1990-08-16 1990-08-16 Zeichenkopf fuer eine zeichenmaschine
DE4025886 1990-08-16

Publications (1)

Publication Number Publication Date
EP0471984A1 true EP0471984A1 (de) 1992-02-26

Family

ID=6412316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111915A Withdrawn EP0471984A1 (de) 1990-08-16 1991-07-17 Zeichenkopf für eine Zeichenmaschine

Country Status (4)

Country Link
US (1) US5191715A (enrdf_load_stackoverflow)
EP (1) EP0471984A1 (enrdf_load_stackoverflow)
JP (1) JPH04226800A (enrdf_load_stackoverflow)
DE (1) DE4025886A1 (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR872341A (fr) * 1941-01-15 1942-06-04 Cellophane Sa Machine à dessiner
US3508336A (en) * 1968-12-05 1970-04-28 Hughes Owens Co Ltd Drafting machine head
DE3136872A1 (de) * 1981-09-17 1983-03-31 Möckel KG Feinmechanik, 6305 Buseck Zeichenkopf fuer eine zeichenmaschine
FR2521913A1 (fr) * 1982-02-22 1983-08-26 Kuhlmann Praezisionsmech Tete a dessiner

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10914C (de) * R. MULLER in Kiew (Rufsland) Treibriemen aus Drahtgewebe
DE424161C (de) * 1925-04-22 1926-01-21 E H Viktor Graf Dr Ing Feststellvorrichtung fuer Zeichenkoepfe
DE484526C (de) * 1927-08-10 1929-10-17 Franz Kuhlmann Zeichenkopf fuer Parallelzeichengeraete
BE472861A (enrdf_load_stackoverflow) * 1944-05-26
US2708791A (en) * 1947-05-03 1955-05-24 Universal Drafting Machine Cor Drafting machine
CH332846A (de) * 1956-02-03 1958-09-30 Reppisch Werk Ag Zeichenmaschinenkopf
US2900728A (en) * 1957-03-11 1959-08-25 Vard Products Inc Drafting machine indexing means
US3339285A (en) * 1961-10-25 1967-09-05 Keuffel & Esser Co Drafting machine
DE1811805B1 (de) * 1968-11-29 1970-08-27 Franz Kuhlmann Kg Praez Smecha Sperrvorrichtung an einem Zeichenkopf
IT963055B (it) * 1972-07-19 1974-01-10 Sassi P Congegno per la misura precisa de gli angoli imposti alle righe di un tecnigrafo con la impugnatura di manovra
SU670470A1 (ru) * 1977-09-16 1979-06-30 Уфимский Завод Чертежных Приборов Чертежна головка
SU732152A1 (ru) * 1978-07-28 1980-05-05 Краснодарский Государственный Научно- Исследовательский И Проектный Институт Нефтяной Промышленности Нпо "Союзтермнефть" Чертежна головка
FR2519586B1 (fr) * 1982-01-11 1988-03-18 Alpia Sa Dispositif de commande du mecanisme d'indexage angulaire des regles d'une tete d'appareil a dessiner
DE3202243C2 (de) * 1982-01-25 1983-12-01 Franz Kuhlmann Präzisionsmechanik und Maschinenbau GmbH & Co KG, 2940 Wilhelmshaven Laufwagen-Zeichenmaschine
DE8515482U1 (de) * 1985-05-25 1986-06-26 Fa. J.S. Staedtler, 8500 Nürnberg Einfacher Zeichenkopf
DE3718543C1 (de) * 1987-06-03 1988-06-23 Hebel Gmbh & Co W Zeichenkopf

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR872341A (fr) * 1941-01-15 1942-06-04 Cellophane Sa Machine à dessiner
US3508336A (en) * 1968-12-05 1970-04-28 Hughes Owens Co Ltd Drafting machine head
DE3136872A1 (de) * 1981-09-17 1983-03-31 Möckel KG Feinmechanik, 6305 Buseck Zeichenkopf fuer eine zeichenmaschine
FR2521913A1 (fr) * 1982-02-22 1983-08-26 Kuhlmann Praezisionsmech Tete a dessiner

Also Published As

Publication number Publication date
US5191715A (en) 1993-03-09
DE4025886A1 (de) 1992-02-20
DE4025886C2 (enrdf_load_stackoverflow) 1993-01-21
JPH04226800A (ja) 1992-08-17

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