Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
  • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
  • G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
  • G01B3/566—Squares

Definitions

• Two base legs serve as a basis, which are at a fixed and unchangeable opening angle of 90 degrees.
• One connection leg is used as the connection surface, with the other connection leg the size of the surface position is measured to 90 Alt ⁇ rad by placing on the surface to be assessed, via the light gap behavior or, for example, using feeler gauges.
• a high measuring accuracy for the different deviation large, ie for example the indication of the angular deviation in metric measure, which is related to a selectable and certain distance and can be the width of the object to be measured
• the axis (5) is used for storage, a further connection between the stop legs consists of the compression spring (17) and the tension spring (14), as well as the adjusting thread (1; 20), with which the opening angle can be changed by turning the adjusting nut ( 20). Can be achieved.
• the opening angle can also be changed and is addressed in claim 14.
• the Oustierbolzen are integrated, which are guided cylindrically. Between the guides, the Oustierbolzen are conical or eccentric, at one end of the Oustierbolzen there is a thread, which is arranged in the axial direction, like the guide cylinder of the Oustierbolzen. In the second stop leg, a thread is introduced in the same axial direction with the cylindrical guide, which makes it possible to continuously adjust the adjusting bolts and to bring them into a required position as required. As a result, the manufacturing tolerances of the two stop legs can be compensated for, at an angle of 90 degrees to each other.
• the camshaft (10) is actuated in the first connection leg, actuatable from the outside, rotatable by 90 degrees and with two
• the cams are offset by 180 degrees and hit the conical or ex-centric sections of the adjustment bolts when the swivel-in lever (35) is actuated.
• the electronically operating indicating devices (38) can be zeroed, the mechanical indicating devices can be checked or readjusted.
• the leg spring (37) returns the cam shaft (10) by 90 degrees.
• the cams are pivoted away from the sections of the locking bolts and the stop legs are agile again.
• Swiveling the stop legs with a sufficient measuring range preferably between 85 and 95 degrees and which can also be enlarged or reduced, can detect deviations.
• Oustierbolzen, perpendicularity handheld can also be used as a conventional rigid 90 degree angle.
• FIG. 2 b shows the camshaft (10) in the pivoted-in state and interacting with the conically or eccentrically shaped sections of the adjusting bolts (7) and thus the formation of the zero reference point to 90 degrees.
• the opening angle is detected by corresponding measuring devices, which are of electronic or mechanical design, on the two stop legs and can be seen on the indicating device.
• the right-angle handheld measuring device with electronic digital displays or electronic
• Analog displays or mechanical analog displays or equipped with counting units are analog displays or mechanical analog displays or equipped with counting units.
• Plug connections or wireless transmission can be transmitted from the measuring device to suitable external devices. for series measurements, save or document the measured value.
• This consists of the two side plates (2; 3) and a center piece. This creates the two stop surfaces with which the inside or outside surfaces are struck.
• the indicating device (38) is arranged in the first stop leg so that it can be read without obstacles and is provided with a horizontally readable number and text field.
• the claim 4 describes that the deviations of 90 degrees are determined with electronic measuring devices and on the indicating device, the deviation magnitude with possible derivations can be seen.
• the deviation size over a certain distance, which can be the same as the width of the object to be dimensioned.
• an angle can be read or retrieved in degrees or degrees, or the angle difference to 90 degrees or 100 degrees.
• the indicating device can be designed so that three digits in front of the decimal point and three digits behind the decimal point can be read and that the determined deviation values are retained by a switchable memory device. For the user, this information is very practical and easy to imagine, especially if the camshaft (10) is swung in to form a rigid 90 degree angle and when the measuring process is repeated, the deviation quantity can be seen and assessed as a light gap.
• the object width is entered into the right hand angular measuring device, the measuring process is carried out and the deviation for the selected object width can be seen on the indicating device. Illustrated by these application examples, can therefore by changing the route, ie. Deviations of up to 90 degrees can be extrapolated using the right-angle hand-held measuring device or, if necessary, also down-counted and is closely related to the trigeometric tangent function.
• the hypotenuse turns out longer in the trigeometric tangent function. If the zero reference point on the indicating device is lost when the electronics are switched off, a zero reference to 90 degrees of opening angle of the two stop legs is mechanically created by swiveling in the camshaft. When the electronics are switched on, this opening angle is either adopted as a zero and zero reference point by the indicating device or is also displayed in 90 degrees or 100 degrees.
• the distance determined before the electronics were switched off appears unchanged on the indicating device and can be selected again if necessary using the potentiometer or keyboard.
• electronic measuring devices detect the opening angle of the two stop legs.
• the first stop leg is equipped with corresponding electronic components which, in cooperation with other electronic components which are introduced in the second stop leg, generate electronic signals and are produced in a known manner.
• the signals are processed in the microelectronics (22) of the right-angled handheld measuring device and displayed on the indicating device as readable data about the opening angle size Microelectronics (22) can be recognized.
• the measuring devices can be provided with reference markings from which corresponding signals emerge and which microelectronics (2) understand as the opening angle size.
• Claim 6 provides that the signals are generated optoelectronically.
• the scanning plate (27) is arranged after the light source and mounted on the side plate (3).
• the segmented disk segment (11) is located in the second stop leg.
• a photo element is inserted in the side plate (2).
• the scanning plate (27) as well as the partial disk segment (II) consist of thin glass panes and have radial grating divisions that form fields. All of these fields are flooded by a light beam that is generated by the light source (28) and the lens (30).
• the luminous flux is modulated when the stop limbs rotate and strikes the photo element (25), which generates an electrical signal and is passed on to the microelectronics (22).
• a segment is introduced as a scanning plate, the surface of which is made of a metallic scanning grating and acts as a capacitor in cooperation with a similar segment located in the second stop leg, which likewise carries a metallic scanning grating.
• the rotation of one of the stop legs which causes a change in the opening angle, generates usable signals.
• Another embodiment according to claim 8 provides that the scanning of the opening angle can be carried out by means of small permanent magnets.
• the dividing disc benseg ent (11) is thus populated as densely as possible.
• a second track can be attached to detect the direction of rotation.
• One or more field plates are provided as the reading device (25) and are accommodated in the side plates (2 or 3).
• these field plates generate electrical signals from which the size of the opening angle can be derived.
• the evaluable signals are generated by inductive devices.
• the coil inductance also changes, without being able to draw conclusions about the opening angle.
• the signals are created by Oh cal donors.
• an electrical conductor is attached as a reading device and in the second stop leg as a segmented disk segment, a grinder that is connected to the electrical Conductor is in contact.
• the mechanical measurement is mentioned when the opening angle of the two stop legs changes.
• all electronic devices are omitted, but the remaining mechanical parts perform the same function as in the electronic versions, namely a detection of the opening angle of the two stop legs.
• the indicating device can be accommodated as an analog display with two pointers and two scalings, as a round instrument in the first stop leg.
• the two pointers on the scales point to zero.
• the deviation from the 90 degrees opening angle on the first scaling is given, preferably in hundredths of a millimeter increments.
• the second pointer serves as a revolution counter for the first pointer and indicates the deviation in whole millimeters at the second scaling.
• the direction of rotation of the two pointers is adjusted so that when the opening angle changes, the two stop legs rotate in the same direction and thus let them know, without changing the opening angle, and there was a deviation according to claim 12 Show 90 degrees or below 90 degrees.
• the scales can also be provided with information in inches, as well as graduations in old degrees or new degrees.
• the first stop leg is placed on the reference surface of the object to be measured and the second stop leg is placed on the surface to be evaluated.
• the deviation size is based on a certain distance, preferably 100 mm with a metric specification.
• the distance of 100 mm which is preferably given, remains fixed during the measuring process and forms an accepted path, the different deviation size remains the opposite catheter and the hypotenuse is the contact distance of the second stop leg on the surface to be evaluated . As the rotation progresses, the hypotenuse turns out correspondingly longer in the trigeometric tangent function.
• the indicating device can be designed as a counter and the scanning of the opening angle by means of a scanning curve or transfer lever or pinion or roller drive or driver, as other mediating mechanical components which can also be used in the analog displays
• the same working principle of the right-angled hand-held measuring device is given, namely recognizing the size of the light gap from deviations from 90 degrees on a certain distance and evaluating it by measuring.
• further counter arrangements are provided for the angle reading.
• claim 12 is an electronic display
• the claim 13 points to the operation of the adjusting thread
• the setting thread is actuated and adjustable from the outside in the first stop leg.
• the compression spring is guided on the threaded spindle (19) and presses on the second stop leg.
• the tension spring (17) is connected to the first and second stop legs.
• Compression spring changed, one acts more or less on the
• the opening angle of the two stop legs can thus be changed and can thus be preselected within the measuring range.
• the biasing force of the tension spring and the compression spring acting on both sides enables the opening angle to remain elastic.
• the pressure on the second stop leg which is placed on the surface to be measured, changes the opening angle and, at the same time, causes more force to be stored in one of the springs than in the other, so that there is a displacement of the force balance between the compression and tension spring has come.
• the opening angle before and after the measuring process is elastic.
• the piston can be attached to the adjusting thread and acts in a cylinder which is connected to the second stop leg.
• the cylinder has two independent chambers, the one with
• Liquid are filled and interact with the piston.
• Each of the chambers has its own elastic volume compensation container which holds the medium in one of the piston movements
• the pressure can equalize and return the two stop legs to the preselected opening angle.
• the leaf spring is attached to the second stop leg.
• the adjustment of the threaded spindle is transferred to the second stop], which remains suspended depending on the position.
• the leaf spring is bent and stores the energy. After the measuring process, the stored energy acts and resets the stop legs.
• a rubber sheet is fastened between the threaded spindle (19) and the second stop leg.
• the rubber sheet allows the elasticity of the
• the first stop leg is made up of the side plates
• Storage of the two part rails (45; 46) serves and is located on the very outside, at the end facing away from the first stop leg.
• the two partial rails can be rotated independently of one another around the axis and are guided in the side plates.
• Both sub-rails are resiliently biased to an outer measuring area and thus also their stop surfaces.
• the outer stop surface of the first stop leg is at a prestressed angle of 85 degrees to the outer stop surface of the second stop leg.
• the inner stop surface of the first stop leg is at a prestressed angle of 95 degrees to the inner stop surface of the second stop leg.
• the outer stop surfaces can be turned during the measurement process, from the pretensioned state of 85 degrees,
• Detect angles up to 95 degrees and the inner abutment surfaces can during the measurement process, from the pretensioned state of 95
• the inner part rail (46) is provided with a limiter (47) which creates the opening angle of 95 degrees, in addition the inner part rail is adjustable from the outside
• Eccentric bolt (48J) which is provided in an elongated hole in the outer part; rail, which runs in the direction of rotation of the part rail, serves as a limiter for the angular deflection of the outer part rail and its 85 degree opening angle.
• the stop surfaces of the second stop leg i.e. the two part rails (45; 6), are parallax to each other at an angle of 10 degrees.
• an external device (49) which can be operated from the outside and can be switched into two positions and which performs various tasks.
• a leaf spring (50) is attached to each of the part rails, which, when the adjusting device (49) is swung out, bears on the inside on two cylindrical pins (51) inserted in the 3us device.
• the holding force is generated by the tension spring (14) and, via the adjusting device (9), holds the partial rails which, in this 90 degree opening angle position, rest on two eccentric bolts located in the adjusting device and adjustable from the outside.
• the eccentric bolts (52) enable rotation around its own axis, an adjustability that balances the manufacturing tolerances of the two stop legs at 90 degrees Can make angles to each other, are adjustable independently of each other and are secured against unwanted rotation by the setscrew (53) and the countersunk screw (4).
• each partial rail (45 and 46) being provided with a measuring device
• mechanical or electronic measuring devices are provided and designed to display the opening angle with its possible derivatives and readable on the measuring device, serve mechanically or electronically indicating devices and are set out in claims 4,5,11,12,17,1, 20 and explained.
• a rectangular hand-held measuring device which has two fixed and parallel stop faces with a stop leg and a second stop leg which consists of two partial rails, each of which is equipped with a stop surface and that the partial rails are loose and are movably suspended.
• the first stop leg is composed of the side plates (60; 61) and the center piece (62), the stop surfaces, which run parallel to one another, being formed by the center piece.
• elongated holes are made at the ends of the part rails, which slide on eccentric bolts (65) and cylinder pins (66) fitted in the side plates.
• Two compression springs (67) lie under tension on the inner surfaces of the partial rails and press them apart so far that the elongated holes bear against the eccentric bolts (65) and the cylinder pins (66).
• a camshaft (68) which can be actuated from the outside and rotated by 90 degrees and is mounted in the side plates, can swivel in and when the two cams hit the inner surfaces of the partial rails (63; 64), a fixed 90 Altqrad opening angle between the stop surfaces of the Make the second stop leg and the * stop surfaces of the first stop leg, which allows the right-angle handheld meter to be used as a rigid 90 degree angle.
• the indicating device can be checked, zeroed or readjusted.
• each section rail is equipped with two measuring devices. Indicating devices serve for the display of the opening angle size, with its possible derivations and readable on the measuring device.
• the measuring devices and indicating devices can correspond to mechanical or electronic designs and are specified and explained in claims 4, 5, 11, 12, 17, 19, 20.
• an abutment surface of the first abutment ice is placed on the reference surface of the object to be dimensioned.
• Stop surface of the second stop leg and the stop surface of the first stop leg exist.
• the position of the overlying partial rail (63 or 64) has changed, and so has the position of the two measuring devices
• the path of the first stop leg can thus be more variable.
• the two measuring devices (70; 71) of the partial rails also serve as a distance meter for the respective partial rail used and are preferably located on the partial rail ends.
• Microelectroni (7) determines a difference that enables a determination of the partial rail position and thus information about the
• the opening angle with its derivatives can be read on the indicating device located on the measuring device.
• the switch When the inner part of the rail moves or rotates, the switch is actuated so that the measuring device and the display device for detecting the inner part of the measuring range are switched, so that the inner part of the rail stop and one of the stop faces of the first stop ice , Measurements carried out, the opening angle detected and the opening angle and its derivatives can be read on the indicating device.
• the measuring device and the indicating device for detecting the outer sub-rail are switched over.
• the camshaft (10; 68) has two possible switching positions.
• One is the swung-out state, the stop limbs being movable.
• the camshaft In the other switch position, the camshaft is swung in and forms a fixed 90 degree opening angle between the two stop legs.
• a disk On the plane side of the camshaft, a disk can be attached, in which an elongated hole is made to run as a track.
• the tension spring acts on a slot end of the disc with its tensile force and holds the position of the camshaft (10; 68) in a stable state.
• the load increases as the rotation progresses, due to radial path changes in the elongated hole to the axis of rotation, a load increase on the mainspring in an reached position, the tensile force of the holding force of the tension spring on the elongated hole track results in a deflection and the tension spring acts in the other part of the elongated hole track.
• the tension force of the tension spring now brings holding force in the successful direction of rotation of the swivel-in lever (35) or the switch button (74) and has the same effect in any position switched.
• Claim 19 points to the energy supply of the electronic devices.
• the aforementioned forms of energy can be replaced by solar energy.
• a switching device can be used to respond to the type of supply that is desired or required.
• Claim 20 mentions the possibility of transferring data between the rectangular hand-held measuring device and to external devices.
• Infrared-modulated light or ultrasonic waves or radio waves enable wireless data transmission about the state of the opening angle and its derivatives to external devices in order to display or save or document the deviations from 90 degrees of opening angle, as is e.g. may be necessary for series measurements.
• the data on the opening angle are processed by electronics located in the rectangular hand-held measuring device and transmitted with an infrared transmitter as light pulses to an infrared receiver. There the light pulses are converted into data and can be read from the external setups.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• A Measuring Device Byusing Mechanical Method (AREA)
• Length Measuring Devices With Unspecified Measuring Means (AREA)

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ID=25898255

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Citations (5)

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• 1991
  • 1991-10-15 DE DE19914134094 patent/DE4134094A1/de active Granted
  • 1991-11-05 WO PCT/DE1991/000855 patent/WO1992008100A1/de unknown

Patent Citations (5)

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