DE102007061990A1 - Rotable display device i.e. manometer, for displaying measured pressure values of flowable fluid, has transparent windshield for forming body with housing for enclosing inlay that is supported rotatably in housing - Google Patents

Abstract

The device (10) has an inlay (30) with a display element (40), where the inlay is supported rotatably in a housing (20). A transparent windshield (60) forms a body (70) with the housing for enclosing the inlay, where the transparent windshield is connected firmly with the housing. An adjustment mechanism (50) i.e. shaft, has a weight that is attached at the inlay, where the housing is made of high-grade steel or liquid metal. The adjustment mechanism has a contactless adjustment mechanism that comprises a magnet ring.

Description

The The present invention relates to a device for displaying Measured values, in particular for displaying pressure measured values.

Patent DE 102 12 767 B4 describes a device for displaying measured values which characterize a state variable of a fluid which can be acted upon by the fluid, with a display for the display of measured values, which is accommodated in a housing. The disadvantage of this device is that arises through the gap of the two mutually rotatable housing parts, either dirt can penetrate into the interior of the device, or the gap offers at least room for deposits. Furthermore, a sealing problem could arise in the described device when cleaning with a steam jet. The resulting high pressure liquid can damage the electronics in the housing.

The The object of the present invention was a measuring device to provide with a rotatable display, which by design applicable in an environment of high hygienic requirements is.

These Task is achieved by the device according to the invention according to the independent claims solved. Further advantageous embodiments of the invention are defined in the dependent claims.

According to a first aspect of the present invention, a device ( 10 ) for displaying measured values, comprising a housing ( 20 ), an inlay ( 30 ) with a display element ( 40 ), the inlay ( 30 ) in the housing ( 20 ) is rotatably mounted and a transparent windscreen ( 60 ) with the housing ( 20 ) a body enclosing the inlay ( 70 ).

The Device is used to display measured values of any kind. For example becomes electrical voltage or electric current or temperatures or humidity or distances or speeds or Pressures or forces or a certain flow quantity or sound levels or illuminances or magnetic fields displayed as measured values. The device is preferred for display used by pressure readings, which in the usual units Pascal (Pa) or bar (bar) or technical atmosphere (at) or physical atmosphere (atm) or torr (torr) or Pounds per square inch (psi). Consequently it acts the device is preferably a manometer. additionally Switching points and / or set functions and / or are preferred for the measured values Warning signals are displayed. The concept of displaying should be extended be that it also includes, for example, beeps.

to Simplification of the spatial description of the device becomes a righthand Cartesian coordinate system taken to the rescue. Looking in the positive y-direction, the device is in Front view or front view shown, d. H. you look at the Display. Accordingly, the back of the device when looking in the negative y direction. From negative or positive x-direction you can see the side view of the device, preferred is the side view of the section through the yz plane meant which the device in two symmetrical halves Splits.

looks in the (positive) y-direction you can see the device from below, If you look in the negative y-direction you can see the device of above.

The Housing of the device is a geometric body, which can take all forms. In front view the housing is preferably circular, especially preferably oval or elliptical, most preferred polygonal. As preferred polygonal shape is the housing in front view for example a square or a rectangle or a hexagon or an octagon. The diameter of the housing in front view is preferably between 5 and 30 cm, especially preferably between 10 and 20 cm, most preferably between 12 and 17 cm, more preferably 15 cm. The housing is preferably 2 to 10 cm deep, more preferably 4 to 9 cm on most preferably 6 to 8 cm. The housing can be made of all Metals, steels, plastics or alloys. Preferably, the housing made of aluminum or iron or chromium or nickel or alloys of these metals or Free-cutting steel or reinforcing steel or stainless steel Steel or ferritic and austenitic steels or nitriding steel or acid-resistant steel or prestressing steel or deep-drawn steel or tempered steel or tool steel. In particular, however made of stainless steel or metallic glass or glass metal. Prefers Among others, amorphous metal alloys are made from the components Zirconium and / or niobium and / or copper and / or nickel and / or Titanium and / or aluminum.

This geometric body preferably receives the inlay. Preferably, the housing rotatably supports the inlay. Preferably, the housing forms a closed body with a transparent front window, which encloses the inlay. The closed body further preferably includes the fol lowing components: the display element and / or parts of an adjustment mechanism and / or an entire adjustment mechanism and / or a stepping motor.

The Housing has a section through the yz plane preferred one shell-like profile, with preferably at least one opening, being the biggest opening in negative y direction shows and a recording device for a transparent windscreen provides. The biggest opening is called the main opening.

Prefers the housing has another opening in negative z-direction, which, for example, as a connector to a flange is used. A potential flange serves, for example as a link between the housing and the test object. The measurement object can be a pressure vessel or a tank or any one another closed body, as well as a silo or to be any open body. This connection is preferably closed and guaranteed by a membrane thus the airtight completion of the housing.

Prefers the housing has another opening, which preferably an electrical connection, more preferably one Data interface includes. This opening is located preferably in the y-direction on the back of the housing, preferably a plug connection with filling compound and pins closes this opening and thus the airtight Closure of the housing opposite the housing Atmosphere guaranteed.

The Housing is preferably produced by a forming process, especially by injection molding, most preferably by Thermoforming. By deep drawing, a sheet metal blank becomes one one-sided open hollow body with little change deformed the material cross-section. Advantages of this method are the low production costs and low production times.

Prefers is the surface of the housing, which is the outside of the case forms overhangsfrei, particularly preferably smooth. This prevents the deposition of particles or bacteria, as for example demanding the strict requirements in the food industry. Of Furthermore, the housing surface is preferably against antibacterial cleaning agent is resistant. Thereby, that the device is common in the food industry Application finds the roughness of the housing surface preferably in the range of hygiene class H3 (media-touching Ra <0.8 μm / not media-contacting Ra <1.6 μm), particularly preferred in the field of hygiene class H4 (media-touching Ra <0.4 μm / not in contact with the media Ra <0.8 μm), most preferred in the field of hygiene class H5 (wetted Ra <0.25 μm / not media-contacting Ra <0.8 μm). The hygiene classes define a surface roughness Ra in μm of materials used, the roughness Ra indicates the unevenness of a surface. media Touching means in the food industry contact with the processed Food, whereby not in contact with the media describes the air.

The Main opening of the housing can all assume geometric shapes. Preferably has the main opening the same shape as the housing in front view, is special preferably circular and has a diameter of preferred 5 to 25 cm, more preferably 7 to 20 cm, most preferred 10 to 16 cm. The diameter is at non-round openings the maximum diameter of the geometric surface in front view.

The Inlay is rotatably mounted in the housing to be independent from the orientation of the housing, the indicator (or the scale) aligned horizontally to the ground for easy readability to guarantee. As a bearing between housing and inlay come preferably plain bearings, such as rotary plain bearings or translational bearings or sintered bearings or carbon bearings or Ceramic bearings or plastic plain bearings, particularly preferred rolling bearings, such as radial bearings or deep groove ball bearings or four-point bearings or self-aligning ball bearings or cylindrical roller bearings or tapered roller bearings etc., for use. Bearings have the advantage of cost to be low and rolling bearing or ball bearing the advantage to produce lowest coefficients of friction. The preferred coefficient of friction or friction coefficient between housing and inlay is 0.02 μ ≥ 0.5.

The Inlay is a geometric body and preferably in front view circular, more preferably polygonal. The diameter of the inlay is preferably between 5 and 25 cm, particularly preferred between 7 and 20 cm, most preferably between 10 and 16 cm. The inlay can be like the case of all Metals, steels, plastics or alloys. The inlay is preferably 1 to 9 cm deep, more preferably 3 to 8 cm, most preferably 5 to 7 cm.

Prefers is applied on the inlay a display element, particularly preferred applied to the visible surface of the inlay. This preferably has Inlay in the y-direction one, more preferably several holes on. The bore, or holes are preferably used to drive shaft a stepping motor, more preferably a plurality of drive shafts take. Seen from the front, the hole is preferably in the geometric Center of the inlay.

Preferably, several inlays are rotatable in the Housing supported, more preferably two, most preferably three. Preferably, the inlay, or its visible surface, viewed from the front of a circular geometry. The depth of the inlay (expansion in the y-direction) describes a radial outer surface of the inlay. The depth of the inlay is preferably 1: 3 to 1: 5 of the depth of the housing, more preferably 1: 2 to 1: 6. This outer surface preferably has a receptacle for a bearing (various embodiments described above), more preferably this surface is the sliding bearing surface. The inlay is preferably introduced into the housing such that the visible surface (area of the inlay front) has a spacing of preferably 0 mm to 25 mm, particularly preferably 5 mm to 20 mm, most preferably 10 mm to 15 mm, relative to the front pane.

The Inlay preferably comprises a display element, a stepper motor and / or a dial and / or a scale and / or a display and / or a LED display and / or a display means and / or a garage and / or a zero point.

The Display element is an element which preferably has measured values indicates, for example as a display, particularly preferably a surface forms a pointer moves on and thereby readings displayed.

The Display element is preferably a dial. Preferably proceeds via the dial a pointer, more preferably method several Pointer over the dial. The dial is preferred mounted on the visible surface of the inlay. It points in the frontal view (i.e., the viewing direction is in the y-direction) is preferable the shape of the housing opening, particularly preferred the shape of the inlay. The dial has at least one Puncture point, d. H. a bore for the stepper motor drive shaft or for one or the second drive shaft. The dial is preferably firmly connected to the inlay and therefore also rotatable stored opposite the housing. Furthermore is the dial preferred label-free, particularly preferred the dial comprises a scale and / or a display and / or an LED display.

Prefers the display element comprises a scale. The scale represents a circle division by markings on the dial, which in shape and Distance between the marks can vary. The scale covers preferably 90 ° to 360 °, more preferably 140 ° to 320 ° particularly preferred 270 to 300 ° of the dial from.

The Scale, or the marks preferably do not include Numerical values, particularly preferably partial numbers, especially Preferably, each mark comprises a number.

The remaining circle segment of the dial is preferred by a Pointer garage, most preferably from a display, the most preferably nontactile fields or by a combination of these Features designed. Nontactile fields are for example buttons, which can be operated without direct contact, d. H. by induction, Heat, etc.

The Dial may partially have a display surface. The display (the display area) preferably takes 30%, especially preferably 50%, most preferably 70%, further preferably 100% the area of the dial.

Of Furthermore, the scale has a zero point, preferably the Pointer is directed when the pure atmospheric pressure is measured. As the atmospheric pressure varies depending on Altitude or field of application may change, the Zero position preferably calibrated over a nontaktiles field.

Of the Stepper motor is preferably a synchronous motor in which the rotor by a controlled stepwise rotating electromagnetic Field of stator coils by a minimum angle or its multiple can be turned. The stepper motor can come in different designs occur, for example, as a reluctance stepping motor or permanent magnet stepping motor or as a combination of the two motors as a hybrid stepping motor. A 360 ° rotation of the stepping motor in 1440 is preferred Steps divided, more preferably divided into 2880 steps. Particularly preferably, the stepping motor is a rotary coil motor. advantage This engine variant is that in case of power failure, a potential Pointer independently in a certain position (for example, pointer garage) could be driven.

Prefers the stepper motor is mounted on the back of the inlay, particularly preferably attached to the inside of the housing. The drive shaft of the stepping motor is preferably parallel to the y-axis, particularly preferably in the center of the geometric shape of the main opening (in front view) of the housing, most preferred the main opening is a circle and the drive shaft is located in the district center. The drive shaft preferably penetrates the Inlay, particularly preferred is the drive shaft via gears connected to a second drive shaft, which penetrates the inlay.

The stepper motor is preferably connected to a motor control, which in turn is preferably connected to a pressure sensor, which is located at the process connection of the housing of the device. Changes the adjoining Pressure, the sensor sends an electrical pulse to the motor control, which then moves the stepper motor accordingly. To the drive shaft of the stepping motor, a mechanical pointer is preferably attached. The attachment is such that no relative movement between the pointer and drive shaft can take place. When the drive shaft of the stepper motor moves, the pointer moves without contact via a dial.

A transparent front screen forms with the housing the inlay enclosing body, this one Body prefers a closed body, especially prefers a hermetic to the exterior of the housing Atmosphere sealed body forms. The transparent Front screen is preferably a plastic disc, particularly preferred a Plexiglas pane, most preferably a glass pane (for example Bulletproof glass, safety glass), with the transparent windscreen furthermore preferably is antireflective.

The Front screen is preferred at the edge folded by 90 ° the main opening of the housing attached, especially preferably in a U-ring which the housing on the inner wall fitted, most preferably in on the inside of the housing fitted grooves fit. Between windscreen and housing is preferably a sealing and / or damping material, on the one hand prefers the tightness of the body guarantee, on the other hand, a breaking of the glass pane Bumps on the case from all To avoid directions. The windscreen is preferred in front view (i.e., y direction = line of sight) the same geometric shape as the main opening. The task of the windshield is the inlay, or the display element with respect to outer Influences, such as blows to shooters.

In a further preferred embodiment, the transparent windscreen ( 60 ) fixed to the housing ( 20 ) connected.

Thereby, that the windshield is firmly connected to the housing, should be granted the tightness of the device and the Components inside the case, before liquids and thus damage is protected. Prefers the windscreen is wedged in the housing, especially preferably fitted, most preferably glued. Thus is a relative movement of glass to housing impossible.

In a further preferred embodiment, the inlay comprises ( 30 ) an adjusting mechanism ( 50 ).

Of the Adjustment mechanism has the task to rotate the inlay and thus a horizontal orientation of the display element, regardless to allow from the housing orientation. When Adjustment mechanism is called any mechanism which the inlay can twist against the housing. The twist is a rotation. The rotation of the inlay is preferred automatically, more preferably by hand triggered. The rotation of the inlay is interposed by the bearing Housing and inlay determined. The center of rotation is located preferred in frontal view on the drive shaft of the stepping motor. The rotation is preferably clockwise, more preferably counterclockwise, most preferred is a rotation possible in both directions. The adjustment mechanism uses Forces of any kind, preferably the weight, especially preferably electromagnetic force, most preferably the rotational force, about a twisting of the inlay relative to the housing to reach.

The Inlay is preferably firmly connected to the dial. If one Scale is applied to the dial, it is dependent on it on the rotational position of the dial and thereby dependent from the position of the inlay in the housing. The rotational position, d. H. The orientation of the scale can be within a 360 ° rotation take any position. But preferred is the orientation of the scale horizontal to the ground. The scale is then horizontal to the ground aligned when the pointer on the scale is the nominal system state and the pointer is at "12 o'clock", that is, upwards shows. The nominal system status or its marking on the scale lies in the middle of the optimal operating range of the plant. When horizontal alignment of the scale is thus the orientation of the scale denotes which the scale assumes when the connecting line the marking "nominal condition" on the scale to puncture point of the clock face perpendicular to the ground stands.

In a further preferred embodiment, the adjusting mechanism ( 50 ) a weight ( 51 ), which at the inlay ( 30 ) is attached.

This type of adjustment mechanism allows automatic alignment of the inlay. The weight is preferably a part of the inlay, particularly preferably attached to the inlay. The weight is opposite the marking of the nominal system condition. Preferably, the weight is at or in the point of the inlay that is geometrically achieved by mirroring the marking of the nominal equipment condition at the inlay center. When viewing the yz plane, in a parallel section through this plane, the weight is preferably a partial area of the circular area of the inlay. This partial surface is preferably a circular segment, particularly preferably a circular sector, most preferably one Thickened circular arc. The weight may be a fixed integral part of the inlay, but also a drawer. Considering the yz-cut of the inlay, the partial area of the circular area of the inlay, which represents the cross-section of the weight, is preferably 10%, more preferably 20%, most preferably 30% of the inlay area.

Size, The shape and mass of the weight depend on the coefficients of friction, which scores from the bearing between inlay and housing become. Preferred weight to friction ratios are preferably 6 g at 0.03 or 10 g at 0.05 or 20 g at 0.1 or 40 g at 0.2 or 60 g at 0.3 or 100 g at 0.5.

The Weight of the weight in conjunction with the acceleration of gravity results a weight force that pulls the weight towards the ground and thereby Align the scale horizontally if the weight is not in the lowest possible Location is located. The lowest possible position of the weight is the closest position of the weight to the ground, which through the given degree of freedom (exactly one degree of freedom; the y-axis) can be achieved.

In a further preferred embodiment, the inlay comprises ( 30 ) a damping ( 31 ).

Prefers if a rotary damper is used as damper, which is mounted in the center of rotation of the inlay. Through the rotary damper the inlay is insensitive to vibrations and a good readability is still guaranteed. The rotary damper prevents strong pendulum movements when the weight is once its optimal, lowest point has taken. Is particularly effective a damping, if waived an inlay locking becomes.

In a further preferred embodiment, the adjustment mechanism ( 50 ) a non-contact adjustment mechanism ( 51 ).

Under contactless adjustment mechanism is called a Adjustment mechanism, which the inlay relative to the housing can rotate without manual intervention on the inlay got to. A non-contact adjustment mechanism turns that Inlay without the inlay with mechanical effect of is rotated outside the housing. The advantage of it is that the seal of the housing easier to realize is because there is no sealed opening in the housing is necessary for this adjustment mechanism. Prefers is the non-contact adjustment mechanism an electric motor, which attached to the axis of rotation of the inlay, with a control unit is connected and this control unit in turn connected to sensors is. At least one sensor detects the position of the housing in the room and a second sensor opposite the rotational position of the inlay the housing. From the relationship housing situation and Rotation position of the inlay, the control unit calculates the horizontal scale alignment and then drives the motor so that it is the horizontal scale orientation occupies relative to the ground.

In a further preferred embodiment, the non-contact adjustment mechanism ( 51 ) a magnetic ring ( 52 ).

Of the Magnetic ring is a ring, which by attraction or repulsion interacts with materials on or in the inlay and thus a relative rotational movement of the inlay relative to the housing allows. The magnetic ring can around the rotation axis y rotate around the housing by preferably firmly with the Housing is connected and its only degree of freedom Rotation about the y-axis is, more preferably on the housing attachable and detachable magnetic ring is. In a preferred Embodiment, the magnetic ring and the inlay are segmental Magnetic to each other, which means that these segments in opposite lying position to each other and thereby a magnetic Connection between inlay and magnet ring is achieved. This magnetic Connection can be used to the rotational force, which per Hand is exerted on the magnetic ring to pass on to the inlay without the magnetic ring having to intervene mechanically in the inlay.

In a further embodiment, the magnetic ring only one or more magnetic elements. This element or this Elements are preferably integrated in the magnetic ring, particularly preferred inserted. Preferably, the inlay comprises an element which preferably only with magnetic element to this magnetic element Interaction occurs. Preferably, the remaining are used Materials of the device not magnetic.

These Embodiments have the great advantage that the magnetic ring or the contactless adjustment mechanism the tightness of the housing body is not endangered.

In a further preferred embodiment, the inlay comprises brakes which are mounted radially on the inlay. These brakes are preferably made of a spring with a magnetic brake pad. The spring presses the brake pad from the inlay against the inner wall of the device housing. When attaching the magnet ring, the spring presses under the brake pad together, since the magnetic ring and the magnetic brake block repel each other. As a result, the inlay is freely movable relative to the housing and the weight in Inlay can automatically align the scale horizontally. Once the scale has been aligned horizontally, the magnetic ring is removed, the spring force pushes the brake pads back against the inner wall of the housing and the inlay is thus locked relative to the housing.

In a further preferred embodiment, the adjustment mechanism ( 50 ) a wave ( 53 ).

The Shaft serves as a manual adjustment mechanism for rotating the Inlays. For this purpose, the shaft is preferably connected coaxially to the inlay, particularly preferably coaxially via a planetary gear with the Inlay connected, most preferably not coaxial over a gear connected to the inlay. Preferably, the inlay is in Combination with the shaft from the side view T-shaped, d. H. it preferably includes two diameters. Preferably one large diameter, which describes the inlay and a small one Diameter of the diameter of the shaft preferably within the Housing describes. The wave is preferably 30%, especially preferably 20%, most preferably 10% of the diameter of the inlay, if it is made of plastic. The wave is preferably 10%, more preferably 5%, most preferably 2% of the diameter of the inlay, if it is made of metal. A preferred twist ring, which is part of the shaft and protrudes from the housing, preferably has up to 90% of the diameter of the shaft, particularly preferred up to 80%, most preferably up to 70%, further preferred up to 60%.

Around To ensure manual operability, the Shaft via an outlet preferably on the back of the case from the case escape. The outlet opening on the back the housing for the shaft is preferably one Bore, particularly preferably a deep-drawn bulge with hole. To ensure the tightness of the housing, the diameter of the shaft drops at the outlet and thus forms a step in the shaft to the sealing surface to increase. At the same time, this is the lead the wave improved. The seal between shaft and housing can be done both axially and radially. The advantage of this embodiment is the easy producibility.

In a further preferred embodiment, the adjustment mechanism ( 50 ) a bevel gear ( 54 ).

The Bevel gear serves as a manual adjusting mechanism for rotating the Inlays. The bevel gear, or the axis of rotation of the bevel gear is preferably not coaxial with the axis of rotation of the inlay, but is angled arranged to this. The angle between the axis of rotation of the bevel gear and axis of rotation of the inlay is preferably 30 °, more preferably 45 °, most preferably 60 °. there the bevel gear is the drive shaft and the inlay is the output shaft. The bevel gear is preferably a straight bevel gear, especially preferably a helical bevel gear, most preferably an arc-toothed bevel gear. The bevel gear is called pinion, the inlay as a crown wheel, the inlay a matching toothing to the bevel gear. The gear ratio from pinion to ring gear is preferably 2: 1, more preferably 3: 1, most preferably 4: 1, further preferably 5: 1.

The Bevel gear is via an outlet opening in the housing fitted in this. The outlet is located preferably on the radial outer surface of the housing, particularly preferred on a beveled surface of the radial Outside of the housing. To the tightness of the To ensure housing, the bevel gear is opposite the housing sealed axially or radially.

In a further preferred embodiment, the bevel gear ( 54 ) via a transmission ( 80 ) with the inlay ( 30 ) connected.

Thereby, that the toothed bevel gear in the toothed ring gear of the inlay engages and thereby achieved an over- or reduction is already realized a transmission in the general sense. Furthermore, all intermediate gears are between Pinion and ring gear possible for more distances between to realize the two components.

By the above described, different adjustment mechanisms leaves the inlay in the housing twist or align. Prefers By turning the inlay, the display element becomes the stepper motor and with it the pointer turned. That means these four components are preferably attached to the inlay. Also preferred is only the inlay rotated with the display element preferably located thereon, wherein the stepper motor and thus the pointer remain in their position. This means that the stepper motor is not connected to the inlay is. After rotation, the pointer or the stepper motor may be preferred recalibrated at the push of a button, d. H. the pointer points up the scale to the zero point.

In a further preferred embodiment, the inlay ( 30 ) opposite the housing ( 20 ) with a lock ( 70 ) detectable.

The locking of the inlay avoids unwanted twisting of the inlay relative to the housing. The lock is not limited to the inlay, but may further the adjustment Mechanism lock when it is mechanically connected to the inlay and thereby locks the inlay as a result.

The Type of locking varies for the various embodiments the adjustment mechanism. Is the adjustment mechanism a bevel gear, could be the lock by moving the bevel gear be achieved on the axis of rotation of the bevel gear. Similar As with the crown of a watch, the bevel gear can take different positions occupy, particularly preferably take exactly two positions. The teeth of the pinion engage in the first position and crown gear into each other. In the second position, which by pressing the bevel gear in the direction of the housing interior, as is achieved with a push button, engage the gears still in itself. In this position, however, the pinion locked. The locking is done by retracting the Gearing of the pinion in a position holder. The position holder is preferably a counterpart comprising at least one tooth to the toothing of the pinion. By holding the position holder firmly is mounted and at least one tooth in the toothing of the Ritzels intervenes, it blocks the ability to rotate of the bevel gear. The inlay is thus locked.

Of Furthermore, the position holder can be a kind of cushion made of softer Be material in which the pinion enters position 2, the friction between pinion and position holder increased so is that an adjustment of the pinion and thus the inlay impossible is done.

Of Furthermore, the adjusting ring of the bevel gear, which is the part of the Bevel gear on the outside of the housing, be arrested. Possibilities are for example one Clamp, a split pin, a catch by a spring, or by a Slide, which engages in the twist ring. As a twisting ring is the part of the shaft called, which from the housing protrudes.

In a preferred embodiment, the housing ( 20 ) an outlet opening ( 21 ) in the housing ( 20 ) for the adjustment mechanism ( 50 ) in front.

In a further preferred embodiment, the adjusting mechanism ( 50 ) opposite the housing ( 20 ) or the outlet opening ( 21 ) with a seal ( 22 ) sealed.

In a further preferred embodiment, the inlay comprises ( 30 ) non-tactile controls ( 80 ).

One Non-tactile control is an element that prefers the control function of the stepper motor control influences. With a non-tactile control element is preferably the pointer opposite Calibrated the scale, particularly preferably the pointer to the zero point reset, most preferably the switching points of the Device set. Many more set functions can adjusted or changed with the non-tactile control become. These preferably include menu control, switching function on another display, damping, slavery, diagnostic function, Switch to other measurands.

The non-tactile control is preferred part of the scale, especially preferably part of the display, most preferably mounted on the pointer garage. The non-tactile Bedienele ment lies in the positive y-direction behind the windscreen of the device and is therefore not directly triggered. Preferably, the function of the non-tactile control element via Induction, more preferably over heat, on most preferably over a light-dark contrast, the Further preferably capacitively triggered.

In a further preferred embodiment, the housing ( 20 ) made of stainless steel or liquid metal.

In a further preferred embodiment, the device comprises ( 10 ) a stop ( 11 ), which determines the rotatability of the inlay ( 30 ) limited.

Of the Stop is preferably a mechanical stop, which either engages directly on the inlay, or engages the adjusting mechanism. The stop is such that it stops the rotation of the inlay a total rotation angle of preferably 360 °, more preferably limited to up to 350 °, most preferably up to 330 °. This will turn off the internal electrical connections avoided.

The The object of the invention is achieved by a further independent Claim solved. Further advantageous embodiments are defined in the dependent claims.

According to another aspect of the present invention, an inlay ( 30 ) for device ( 10 ) for displaying measured values, wherein the inlay ( 30 ) in the device ( 10 ) is rotatably mounted.

In a further preferred embodiment, an inlay ( 30 ), the inlay ( 30 ) a component ( 14 ) an adjusting mechanism ( 50 ).

The component is preferably the entire adjustment mechanism, particularly preferred in Ver adjusting mechanisms, which are separable into individual parts of the component, which is located in or on the inlay.

In a preferred embodiment, an inlay ( 30 ), the component ( 14 ) a weight ( 15 ).

In another preferred embodiment, an inlay ( 30 ), the component ( 14 ) a magnet ( 16.1 ) or a magnetic element ( 16.2 ).

Of the Magnet or the magnetic element is preferably on the inlay, particularly preferably on the radial outside of the inlay, more preferably in the inlay. Is the inlay in front view a circle, the magnet or the magnetic element is preferred in the outer third of the radius spanned by the radius Surface, starting from the center of the circle, positioned. ever further the magnet or magnetic element from the center of the inlay is removed, the larger the lever arm and the lower the magnetic effect between the magnet or the magnetic element on the inlay and its counterpart be outside of the housing to make a turn of the To allow inlays.

In a further preferred embodiment, an inlay ( 30 ), the component ( 14 ) a sprocket ( 17 ).

is the adjusting mechanism is a bevel gear, or a pinion, then the associated ring gear preferably attached to the inlay, more preferably, the inlay itself is the ring gear.

is the inlay itself the ring gear, then preferably has the edge between radial outside of the inlay and back of the Inlays a gearing on. Particularly preferably, the radial Outside of the inlay has a toothing, most preferably the back of the inlay has a toothing. The possible Gears are each such that a bevel gear either can intervene directly in the toothing on the inlay or that a gear, which is connected to the bevel gear in the toothing can intervene.

In a further preferred embodiment, an inlay ( 30 ), the component ( 14 ) a receiving device ( 18 ) for a wave ( 53 ).

Prefers the inlay comprises a receiving device for a shaft, wherein the exception device preferably a plug connection for Wave manufactures, particularly preferably represents a bonded connection, most preferably represents a permanent compound.

In a further preferred embodiment, an inlay ( 30 ), the component ( 14 ) a receiving device ( 19 ) for a transmission ( 90 ).

is the shaft, for example, aligned coaxially to the inlay and true the midpoint axis of the shaft does not coincide with the midpoint axis of the inlay, becomes a compound of the two axes requires a rotation of the inlay when the shaft rotates to enable. Around the parallel axes (inlay midpoint axis and shaft center axis) is preferred a 1: 1 transmission, more preferably a reduction gear, most preferably used a transmission gear.

In The description of the figures will be further preferred embodiments shown. The figures show:

1 a schematic representation of a pressure gauge with shaft as adjusting mechanism.

2 a schematic representation of a pressure gauge with weight as adjusting mechanism.

3 a schematic representation of a pressure gauge with bevel gear as adjustment.

In 1 is a schematic representation of a manometer in cross-section (ie the yz plane is sectional plane) described.

The housing 20 forms a closed body 70 with the transparent windscreen 60 , This closed body 70 includes the inlay 30 with an adjustment mechanism 50 wherein the adjusting mechanism is a shaft 53 is. The wave 53 is opposite the case 20 or opposite the outlet opening 21 with a seal 22 sealed. The inlay also includes an advertisement 40 and non-tactile controls 80 ,

The housing 20 has a U-shaped deep drawing in cross section. Looking in the y-direction on the pressure gauge and thus on the main opening of the housing 20 , is the case 20 circular. On the back of the circular housing 20 there is a hole or outlet opening 21 , wherein in the radial direction around the bore a stepped shoulder 23 you can see. The housing further has a third opening which is separated by a membrane from the adjoining flange. At the main opening, ie at the largest opening of the housing 20 is a transparent windshield 60 fitted. The transparent windscreen 60 consists of anti-reflective glass and is with a sealing ring 25 glued, which in turn with the housing 20 , or with the folded overhang 24 , is glued. Inside the case is the inlay 30 which is rotatable relative to the housing 20 is mounted and connected via a plain bearing with this. The inlay 30 is further with a wave 53 connected, being wave 53 and inlay 30 coaxially connected to each other and have a T-shape in cross section. The diameter of the shaft 53 is about 20% of the diameter of the inlay 30 , Where the wave 53 on the staircase-shaped heel 23 on the back wall of the case 20 meets, the diameter of the shaft tapers 53 by about one third. At this point is the wave 53 opposite the housing 20 with a seal 22 radially sealed. The part of the wave 53 , which through the bore or the outlet opening 21 out of the case 20 sticks out, is called Verdrehring 55 designated. The inlay includes a display on the front panel 40 , or a dial, which firmly on the inlay 30 glued on and further includes a scale, which in frontal view through the transparent front window 60 you can see. In the middle of the dial or in the center of the circle 41 the dial is a receptacle or a drive shaft to which a mechanical pointer is attached. The dial also includes a graduated scale graduation, with the scale running through 270 degrees of the dial. The remaining angle of 90 ° is covered by a pointer garage. The pointer garage is a circular sector, which from the puncture point of the dial 41 runs to the edge of the dial. The pointer garage contains non-tactile controls 80 ,

About the twist ring 55 At the end of the shaft, the inlay can be turned clockwise or counterclockwise. The total turning range is 720 °, ie 2 × 360 °, ie from the starting position full counterclockwise rotation or full clockwise rotation is possible. Thus, the scale is horizontally alignable regardless of the position of the flange (ie, position of the flange about the y-axis). Because of the inlay 30 over a wave 53 adjustable, which on the back of the case from the housing 20 An inadvertent adjustment of the scale by employees in passing is impossible.

2 shows a schematic representation of a manometer in cross section, ie the sectional plane is the yz plane.

Viewed from the x direction, the case has 20 a U-shape, which was produced by injection molding. In the y-direction, ie seen from the front, the U-shape is open or shows the main opening, which by a transparent front glass 60 is covered by Plexiglas. The Plexiglas is in a groove 26 edged, with a sealing ring 25 the interface housing / Plexiglas disc seals. The housing 20 has only one more opening, which merges into a flange and through a membrane from the interior of the housing 20 is separated. This so-called einschießende body 70 is hermetic to the outside of the case 20 sealed medium prevailing. Furthermore, there is an inlay 30 mounted inside the housing, which rotatable relative to the housing 20 is stored. The storage takes place via a ball bearing 56 which is radial about a short shaft 53.1 attached, which is directly connected to the inlay, the ball bearing 56 at a recording 57 which is attached to the housing 20 connected is. Thus, the inlay 30 rotatably mounted about the y-axis. The inlay 30 includes a weight 50 , which in the inlay 30 is integrated and seen in cross section is square and in the outer third (radially from the axis of rotation, starting in the y direction) of the inlay 30 is introduced. Viewed from the front, the weight is a circular arc with a circular arc length, which could be calculated from a circular sector with 3 ° opening angle. The ad 40 is like in 1 firmly connected to the inlay and contains the same scale division or non-tactile elements 80 , A stop prevents the inlays from being over-tightened and limits the rotation in each direction to 220 °. The weight 50 is so in the inlay 30 integrated, that the scale is aligned horizontally when the weight 50 Towards the ground.

If you now rotate the flange around the y-axis, the weight decreases 50 always the lowest point, due to gravity, in the housing 20 one. By the location of the weight 50 to the scale and the rotatable mounting of the entire inlay 30 , the scale is always aligned horizontally towards the ground. Advantages of this embodiment are the low production costs of the housing 20 , the simple hermetic sealing of the housing 20 relative to the exterior of the housing and the automatic alignment of the scale within the housing 20 ,

3 shows how 1 and 2 , a manometer in cross-section.

The pressure gauge housing 20 is round in the y direction, or has a geometric circular shape. The radial outer wall 27 of the housing 20 is partially parallel to the axis of rotation 100 of the inlay 30 , which is rotatably mounted in the housing via a sliding bearing. Partial is the radial outer wall 27 of the housing bevelled by 45 °. This slope 28 located opposite the attached flange on the other side of the housing. On the beveled side 28 of the housing is an outlet opening 21 or bore, by a bevel gear 54 is filled in and with a seal 22 ge opposite the housing 20 is sealed. The bevel gear 54 has a helical shape, with the head of the bevel gear 54 has a larger diameter than the hole. The toothing of the bevel gear 54 engages in a toothing, which is on the back of the inlay 30 is appropriate. The back of the inlay 30 is the side of the inlay 30 if you look at it in the negative y-direction. Viewed in positive y-direction, the inlay points 30 a dial on, with the usual scaling and division, as already in 1 and 2 has been described. The inlay 30 is through a transparent windscreen 60 protected, which in an annular groove 26 at the open end of the housing 20 , That is, fitted to the main opening of the housing.

By manually turning the bevel gear 54 The inlay can be rotated to the desired position and thus any orientation of the scale in rotation about the y-axis can be achieved.

10

contraption

15

Counterpart to the adjustment mechanism ( 50 )

20

casing

21

outlet opening

22

poetry

23

staircase-shaped paragraph

24

Beveled overhang

25

sealing ring

26

groove

27

radial Outside wall of the housing

28

slope Outside wall of the housing

30

inlay

35

camp

40

display element

41

Focus of the digit Balt

50

adjustment

51

Weight

52

magnetic ring

53

wave

53.1

short wave

54

bevel gear

55

rotating ring

56

ball-bearing

57

admission

60

windscreen

70

enclosing body

80

Non-tactile controls

90

transmission

100

axis of rotation of the inlay

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10212767 B4 [0002]

Claims (23)

Contraption ( 10 ) for displaying measured values, comprising a housing ( 20 ), an inlay ( 30 ) with a display element ( 40 ), characterized in that the inlay ( 30 ) in the housing ( 20 ) is rotatably mounted and a transparent windscreen ( 60 ) with the housing ( 20 ) a the inlay ( 30 ) enclosing body ( 70 ). Apparatus according to claim 1, wherein the transparent windshield ( 60 ) fixed to the housing ( 20 ) connected is. Device according to one of claims 1 or 2, wherein the device ( 10 ) an adjusting mechanism ( 50 ) for the inlay ( 30 ). Contraption ( 10 ) according to one of claims 1 to 3, wherein the adjusting mechanism ( 50 ) a weight ( 51 ), which at the inlay ( 30 ) is attached. Contraption ( 10 ) according to claim 4, wherein the inlay ( 30 ) a damping ( 31 ). Contraption ( 10 ) according to one of claims 1 to 3, wherein the adjusting mechanism ( 50 ) a non-contact adjustment mechanism ( 51 ). Contraption ( 10 ) according to claim 6, wherein the non-contact adjustment mechanism ( 51 ) a magnetic ring ( 52 ). Contraption ( 10 ) according to one of claims 1 to 3, wherein the adjusting mechanism ( 50 ) a wave ( 53 ). Contraption ( 10 ) according to one of claims 1 to 3, wherein the adjusting mechanism ( 50 ) a bevel gear ( 54 ). Contraption ( 10 ) according to claim 9, wherein the bevel gear ( 54 ) via a transmission ( 90 ) with the inlay ( 30 ) connected is. Contraption ( 10 ) according to one of claims 1 to 10, wherein the inlay ( 30 ) opposite the housing ( 20 ) with a lock ( 70 ) is detectable. Contraption ( 10 ) according to one of claims 8 to 11, wherein the housing ( 20 ) an outlet opening ( 21 ) in the housing ( 20 ) for the adjustment mechanism ( 50 ). Contraption ( 10 ) according to one of claims 8 to 12, wherein the adjusting mechanism ( 50 ) opposite the housing ( 20 ) or the outlet opening ( 21 ) with a seal ( 22 ) is sealed. Contraption ( 10 ) according to one of claims 1 to 13, wherein the inlay ( 30 ), non-tactile controls ( 80 ). Contraption ( 10 ) according to one of claims 1 to 14, wherein the housing ( 20 ) is made of stainless steel or liquid metal. Contraption ( 10 ) according to one of claims 1 to 15, wherein the device ( 10 ) a stop ( 11 ) which determines the rotatability of the inlay ( 30 ) limited. Inlay 30 ) for device ( 10 ) for displaying measured values, wherein the inlay ( 30 ) in the device ( 10 ) is rotatably mounted. Inlay 30 ) according to claim 17, wherein the inlay ( 30 ) a component ( 14 ) an adjusting mechanism ( 50 ). Inlay 30 ) according to claim 18, wherein the constituent ( 14 ) a weight ( 15 ). Inlay 30 ) according to claim 18, wherein the constituent ( 14 ) a magnet ( 16.1 ) or a magnetic element ( 16.2 ). Inlay 30 ) according to claim 18, wherein the constituent ( 14 ) a ring gear ( 17 ). Inlay 30 ) according to claim 18, wherein the constituent ( 14 ) a receiving device ( 18 ) for a wave ( 53 ). Inlay 30 ) according to claim 18, wherein the constituent ( 14 ) a receiving device ( 19 ) for a transmission ( 90 ).