FR2327870A1 - HEAD FOR DRAWING APPARATUS - Google Patents
HEAD FOR DRAWING APPARATUSInfo
- Publication number
- FR2327870A1 FR2327870A1 FR7631269A FR7631269A FR2327870A1 FR 2327870 A1 FR2327870 A1 FR 2327870A1 FR 7631269 A FR7631269 A FR 7631269A FR 7631269 A FR7631269 A FR 7631269A FR 2327870 A1 FR2327870 A1 FR 2327870A1
- Authority
- FR
- France
- Prior art keywords
- angle
- gearwheel
- correspond
- connecting plate
- motor
- 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.)
- Granted
Links
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
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The scale holders (32) for the drawing scales (33, 34) are supported in a moving manner in a connecting plate (39). The scale holders (32) are arranged underneath the connecting plate (39), while a gearwheel (38) is arranged above the connecting plate (39). The gearwheel (38) can be rotated by means of a motor (28) and a worm drive (36) which is fitted on the motor shaft (35). In order to produce an angle signal, an impulse disc (37) is fitted on the motor shaft (35), which impulse disc (37) influences an angle pulse transmitter (1) such that counting pulses, which correspond to the angle, are emitted to an electronic circuit (40). In order to compensate for angle errors which are caused by mechanical transmission, a second (actual) angle pulse transmitter (31) is provided which detects the rotation angle of the gearwheel (38), that is to say of the shaft of the drawing head (A), and emits a pulse in a stepped manner, for example every 1 DEG . If the angle values of the two angle transmitters (1, 31) do not correspond, then the said circuit (40) operates the motor (28) until the values do correspond. The drawing head (A) furthermore has an angle indication (42), which preferably contains two indication areas, specifically an actual angle indication area (9) and a fixed, complement or supplement angle indication area (19).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752546649 DE2546649A1 (en) | 1975-10-17 | 1975-10-17 | Head for drawing machine - has digital angle indicator and coarse and fine pulse emitting angle detectors |
DE19752546690 DE2546690A1 (en) | 1975-10-17 | 1975-10-17 | Adjustable drawing machine head - has digital angle indicator, angle detector and drive mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2327870A1 true FR2327870A1 (en) | 1977-05-13 |
FR2327870B3 FR2327870B3 (en) | 1979-07-06 |
Family
ID=25769523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7631269A Granted FR2327870A1 (en) | 1975-10-17 | 1976-10-18 | HEAD FOR DRAWING APPARATUS |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5251224A (en) |
CH (1) | CH612629A5 (en) |
FR (1) | FR2327870A1 (en) |
IT (1) | IT1073058B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2364773A1 (en) * | 1976-09-17 | 1978-04-14 | Mutoh Ind Ltd | DEVICE FORMING UNIVERSAL PARALLEL RULES OR PANTOGRAPH |
FR2498994A1 (en) * | 1979-10-05 | 1982-08-06 | Martz Kg Marabuwerke | ADJUSTING HEAD FOR APPARATUS FOR DRAWING |
WO1994025230A1 (en) * | 1993-05-04 | 1994-11-10 | Wilhelm Altendorf Gmbh & Co. Kg | Double-sided miter box for machine-tools, in particular panel saws |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344045U (en) * | 1976-09-17 | 1978-04-15 | ||
JPS5475842U (en) * | 1977-11-07 | 1979-05-30 | ||
JPS5928200B2 (en) * | 1978-08-24 | 1984-07-11 | 横河電機株式会社 | plotting device |
JPS5870851A (en) * | 1981-10-23 | 1983-04-27 | Toshiba Corp | Centrifugal clarifier |
JPS6372094U (en) * | 1987-07-08 | 1988-05-14 |
-
1976
- 1976-10-12 CH CH1312776A patent/CH612629A5/en not_active IP Right Cessation
- 1976-10-15 IT IT2837176A patent/IT1073058B/en active
- 1976-10-18 FR FR7631269A patent/FR2327870A1/en active Granted
- 1976-10-18 JP JP12477376A patent/JPS5251224A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2364773A1 (en) * | 1976-09-17 | 1978-04-14 | Mutoh Ind Ltd | DEVICE FORMING UNIVERSAL PARALLEL RULES OR PANTOGRAPH |
FR2498994A1 (en) * | 1979-10-05 | 1982-08-06 | Martz Kg Marabuwerke | ADJUSTING HEAD FOR APPARATUS FOR DRAWING |
WO1994025230A1 (en) * | 1993-05-04 | 1994-11-10 | Wilhelm Altendorf Gmbh & Co. Kg | Double-sided miter box for machine-tools, in particular panel saws |
AU669294B2 (en) * | 1993-05-04 | 1996-05-30 | Wilhelm Altendorf Gmbh & Co. Kg | Double-sided miter box for machine-tools, in particular saws |
Also Published As
Publication number | Publication date |
---|---|
IT1073058B (en) | 1985-04-13 |
CH612629A5 (en) | 1979-08-15 |
JPS5251224A (en) | 1977-04-25 |
FR2327870B3 (en) | 1979-07-06 |
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