CN1175256C - Balance with load-weight sensing device having stopping mechanism - Google Patents
Balance with load-weight sensing device having stopping mechanism Download PDFInfo
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- CN1175256C CN1175256C CNB011245808A CN01124580A CN1175256C CN 1175256 C CN1175256 C CN 1175256C CN B011245808 A CNB011245808 A CN B011245808A CN 01124580 A CN01124580 A CN 01124580A CN 1175256 C CN1175256 C CN 1175256C
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- straining body
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Abstract
A balance with load-weight sensing device is provided with a straining body deformed according to the load, a fixing side part installed on the side of the straining body for detecting the load, and a movement side part installed on the movable side of the straining body for detecting the load. The load-weight sensing device has a stopper constitution for restricting the alteration of the fixing side part and the movement side part up and down.
Description
Technical field
The present invention relates to have the scale of the load-weight sensing device of being with stop mechanism.
Background technology
In scale, load cell is one of weight detecting mechanism.The characteristic of the straining body that this load cell utilization and weight are out of shape with being directly proportional, from the electric signal of the corresponding sensor of deflection of straining body, calculate gravimetric value.This straining body is accurate parts, has some loadings just to produce distortion slightly, and this distortion is passed to sensor.
But, in the use of scale, used rambunctiously sometimes, for example catch the scale pan sharply up to start etc.When deliberately starting the falling of the scale pan or scale, its impulsive force makes the straining body plastic yield and returns less than original shape such.Perhaps, the weight of measuring has sometimes surpassed the rated weight of scale.For this reason, in order to make that straining body is also indeformable when thump or g-load recast are used on the scale, below the movable side of straining body, be provided as the screw of stop part, straining body contacts with screw, the excessive change of restriction straining body.Perhaps, at base part rib is set, when having served as load effect, straining body and this ribbed joint touch.
In addition, as the weight detecting mechanism of scale, the testing agency of electrostatic capacity type is arranged also.This testing agency utilizes the elastomeric characteristic of the leaf spring that is out of shape with weight or straining body etc. with being directly proportional, according to elastomeric deflection, from the electric signal of electrostatic capacity type sensing device, calculates gravimetric value.The electrostatic capacity type sensing device portion that this elastic body or battery lead plate constitute is accurate parts, and the just distortion of some weight of elastomer is arranged slightly, detects this weight, and along with elastomeric distortion, battery lead plate also changes at interval.
But when scale fell, its impulsive force caused the battery lead plate plastic yield and returns less than original shape.Even do not fall, but impacted in transportation, battery lead plate also can shake sometimes.When these accidents of generation, even without loading, the electrode interbody spacer also produces big variation, in weighing thereafter, can show inaccurate loading value, perhaps at all can not weighing.During the thin thickness of battery lead plate, be easy to generate plastic yield, so consider the thickening battery lead plate, can improve the intensity of battery lead plate itself, still, if battery lead plate is thickeied, weight also increases, and the impact when falling is then bigger.When meeting with the impact that surpasses the electrode material limit of elasticity, produce plastic yield, so do not take this method usually.For this reason, indeformable in order when running into thump, to make battery lead plate, below battery lead plate, be provided as the protuberance of stop part from base portion, battery lead plate contacts with this protuberance, can limit the excessive change of battery lead plate.Perhaps, also can below battery lead plate, paste the impact absorption material of rubber material or sponge etc., can relax the impact of g-load recast time spent.
Above-mentioned employing stops in the method for straining body excessive deformation as the screw of stop part, and component number increases, and wants the adjusting screw height, makes straining body change in the scope that can measure loading, prevents loading, so the adjusting operation of screw is miscellaneous.
In addition, the above-mentioned rib that is provided with on pedestal stops in the structure of straining body excessive deformation, and the gap between the rib of sensing device and base portion must be accurately, when making the parts such as primary screw of base component, sensing device, connection base portion, must the accurate dimensions precision.But usually, base portion is a resin forming product, and warpage and inclination easily is so the interval instability of protuberance and sensing device must confirm whether to have carried out accurate face processing during assembling.
In addition, in the structure that protuberance stops the battery lead plate excessive deformation in the electrostatic capacity type sensing device is set by base portion, the gap of sensing device and base portion protuberance must be accurately, making base component, need the accurate dimensions precision with sensing device, when being connected the parts such as primary screw of base portion.But as previously mentioned, base portion is a resin forming product usually, easily warpage.Therefore, the interval instability of protuberance and sensing device must confirm whether to have carried out accurate face processing during assembling.
In addition, above-mentionedly below battery lead plate, paste rubber material or sponge, stop the method for battery lead plate excessive deformation, need the sticking operation of trouble.
Summary of the invention
The present invention makes in view of the above problems, and its purpose is to provide a kind of scale that has the load-weight sensing device of band stop mechanism.
The scale of the application's the 1st invention is characterised in that described title is made of the load-weight sensing device with stop mechanism; Have: the straining body that is out of shape and has carriage side and mobile frame side according to the weight of object that is placed on the pan of a steelyard; The sensor of the corresponding electric signal of deflection of output and straining body, but described sensor is the pair of electrodes plate that is made of fixed polar plate and movable plate electrode; Form definite shape and connect straining body and the pan of a steelyard supporting plate of pan of a steelyard by a sheet material, as the part of described pan of a steelyard supporting plate, comprise be used for the mobile restriction of straining body within the specific limits have bar-shaped of top and bottom; And form definite shape and straining body is connected straining body anchor clamps on the pedestal by a sheet material, as the part of described straining body anchor clamps, comprise being used for the mobile restriction of straining body empty shape portion within the specific limits with top and bottom; Described stop mechanism is when exceeding the crossing loading or uplift force and act on the straining body of rated weight, because of the top and bottom of the empty shape portion of bar-shaped top and bottom of pan of a steelyard supporting plate and straining body anchor clamps contact with the mobile restriction of straining body within the specific limits, thereby can stop the distortion of straining body.Described carriage side at described straining body, be provided with: as the spacer of insulator, described fixed polar plate, but the teat that is contacted when having the downward side warpage of described movable plate electrode and as the spacer of insulator, but and teat that is contacted with described spacer, described fixed polar plate with when having the downward side warpage of described movable plate electrode and the screw that grips in proper order as the spacer of insulator as insulator;
Described movable frame side at described straining body, be provided with: have teat that described fixed polar plate contacted and when the upside warpage as the spacer of insulator, but described movable plate electrode, spacer as insulator, but and will have teat that described fixed polar plate contacted and seize fixing screw in proper order on both sides by the arms when the upside warpage as the spacer of insulator, described movable plate electrode and described spacer as insulator.
The scale of the application's the 2nd invention is characterised in that described title is made of the load-weight sensing device with stop mechanism; Have: the straining body that is out of shape and has carriage side and mobile frame side according to the weight of object that is placed on the pan of a steelyard; The sensor of the corresponding electric signal of deflection of output and straining body, but described sensor is the pair of electrodes plate that is made of fixed polar plate and movable plate electrode; Form definite shape and connect straining body and the pan of a steelyard supporting plate of pan of a steelyard by a sheet material,, comprise being used for the mobile restriction of straining body empty shape portion within the specific limits with top and bottom as the part of described pan of a steelyard supporting plate; And form definite shape and straining body be connected straining body anchor clamps on the pedestal by a sheet material, as the part of described straining body anchor clamps, comprise be used for the mobile restriction of straining body within the specific limits have bar-shaped of top and bottom; Described stop mechanism is when exceeding the crossing loading or uplift force and act on the straining body of rated weight, because of the top and bottom of the empty shape portion of pan of a steelyard supporting plate contact with bar-shaped top and bottom of straining body anchor clamps with the mobile restriction of straining body within the specific limits, thereby can stop the distortion of straining body.Described carriage side at described straining body, be provided with: as the spacer of insulator, described fixed polar plate, but the teat that is contacted when having the downward side warpage of described movable plate electrode and as the spacer of insulator, but and teat that is contacted with described spacer, described fixed polar plate with when having the downward side warpage of described movable plate electrode and the screw that grips in proper order as the spacer of insulator as insulator;
Described movable frame side at described straining body, be provided with: have teat that described fixed polar plate contacted and when the upside warpage as the spacer of insulator, but described movable plate electrode, spacer as insulator, but and will have teat that described fixed polar plate contacted and seize fixing screw in proper order on both sides by the arms when the upside warpage as the spacer of insulator, described movable plate electrode and described spacer as insulator.
The title of the application's the 3rd invention is characterised in that described sensor is the pair of electrodes plate that is made of first battery lead plate and second battery lead plate; Described carriage side order at described straining body is overlapping: as first spacer of insulator; First battery lead plate; Contact and to warpage produced mobile limit and of second battery lead plate by free end as second spacer of insulator with second battery lead plate; Do not contact first spacer of first battery lead plate from the second spacer side; First battery lead plate; And second spacer is fixed on carriage side screw on the straining body; Described mobile frame side order at described straining body is overlapping: contact and to warpage produced mobile limit and as the 3rd spacer of insulator of first battery lead plate by the free end with first battery lead plate; Second battery lead plate; The 4th spacer as insulator; Do not contact the 3rd spacer of second battery lead plate from the 4th spacer side; Second battery lead plate; And the 4th spacer is fixed on mobile frame side screw on the straining body.
The electrostatic capacity type scale of the application's the 4th invention is characterised in that described electrostatic capacity type claims to be made of load-weight sensing device; Have: but possess an end be fixed on the straining body of the carriage side of the Luo Baiwaer mechanism on the pedestal and mobile frame side and constitute by fixed polar plate and movable plate electrode, as the pair of electrodes plate of output with the sensor of the corresponding electric signal of deflection of straining body; Described carriage side at described straining body, be provided with: as the spacer of insulator, described fixed polar plate, but the teat that is contacted when having the downward side warpage of described movable plate electrode and as the spacer of insulator, but and teat that is contacted with described spacer, described fixed polar plate with when having the downward side warpage of described movable plate electrode and the screw that grips in proper order as the spacer of insulator as insulator;
Described movable frame side at described straining body, be provided with: have teat that described fixed polar plate contacted and when the upside warpage as the spacer of insulator, but described movable plate electrode, spacer as insulator, but and will have teat that described fixed polar plate contacted and seize fixing screw in proper order on both sides by the arms when the upside warpage as the spacer of insulator, described movable plate electrode and described spacer as insulator.
Description of drawings
Fig. 1 is the planimetric map of the scale inside of one embodiment of the invention.
Fig. 2 is the A-A line sectional drawing of scale shown in Figure 1.
Fig. 3 is the B-B line sectional drawing of scale shown in Figure 1.
Fig. 4 is the outboard profile of the sensing device portion of scale shown in Figure 1.
Fig. 5 is the figure of the inboard of sensing device shown in Figure 4 portion.
Fig. 6 is the front view (FV) and the outboard profile of a kind of spacer used in scale shown in Figure 1.
Fig. 7 is the front view (FV) and the outboard profile of another kind of spacer used in scale shown in Figure 1.
Fig. 8 is the planimetric map of the sensing device in another embodiment of the present invention.
Fig. 9 is the outboard profile of sensing device shown in Figure 8.
Figure 10 is the back view of sensing device shown in Figure 8.
Figure 11 is the planimetric map of the sensing device among another embodiment.
Figure 12 is the A-A line sectional drawing of sensing device shown in Figure 11.
Figure 13 is the B-B back view of sensing device shown in Figure 11.
Figure 14 is the planimetric map of the sensing device in another embodiment of the present invention.
Figure 15 is the A-A line sectional drawing of sensing device shown in Figure 14.
Figure 16 is the B-B line sectional drawing of sensing device shown in Figure 14.
Figure 17 is the back view of sensing device shown in Figure 14.
Embodiment
Below, with reference to the description of drawings embodiments of the invention.
Fig. 1 is in the circular electrostatic capacity type scale of employing stop mechanism of the present invention, expression with the scale pan (this scale pan is for placing the object usefulness of wanting weighing) take off state scale inside, be the sensing device portion of gravimetry and the planimetric map of synthetic resin system base portion.Fig. 2 is the A-A line sectional drawing of Fig. 1, and Fig. 3 is the B-B line sectional drawing of Fig. 1, and Fig. 4 is the outboard profile that only takes off sensing device portion state, and Fig. 5 is the inside figure of sensing device portion.
As shown in these figures, elastic body is to adopt straining body 1, one end (supporting frame side) with Luo Baiwaer mechanism by straining body anchor clamps 2, is fixed on primary screw 4 on the rib 3A that stretches out from pedestal 3; The other end (movable frame side) becomes the structure that floats from pedestal 3.In the bottom of straining body 1, be spacer 5A, 5B, 5C, 5D by insulator, be provided with pair of electrodes plate 6,7 as sensor.Below the supporting frame side of straining body 1, holding spacer 5A, fixed polar plate 6, spacer 5B successively under the arm, and fixing with 2 primary screw 10B.In the movable frame side but movable plate electrode 7 is installed, but should movable plate electrode 7 with fixed polar plate 6 in opposite directions and be parallel to each other.Below the movable frame side of straining body 1, but holding spacer 5C movable plate electrode 7, spacer 5D successively under the arm, fixing with 2 primary screw 10A.Load-weight sensing device, but the polar plate spacing of, fixed polar plate 6 corresponding and movable plate electrode 7 by the elastic deformation of the straining body 1 that causes with loading from change, output and the corresponding signal of loading.
On straining body 1, with primary screw 9 scale pan supporting plate 8 that is used to install the scale pan (scheming not show) is installed, at the notch portion 8C of this scale pan supporting plate 8, embed the leader of the claw that is formed on scale pan dorsal part.
Scale pan supporting plate 8 stretches out towards the supporting frame direction along straining body 1, forms pushing stopper section 8A in the above, manner stopper 8B on two sides form, this on manner stopper 8B with push between the 8A of stopper section some interval slightly.In the gap of this pushing stopper section 8A and last manner stopper 8B, leave the circumference 2A that holds under the arm with gap into straining body anchor clamps 2.
Fig. 6 is the figure of spacer 5A, and Fig. 6 (a) is a front view (FV), and Fig. 6 (b) is the figure that sees from the side.Spacer 5A is an insulator, is resin forming product, is formed with 2 screw through-hole 51.Spacer 5D too.
Fig. 7 is the figure of spacer 5B, and Fig. 7 (a) is a front view (FV), and Fig. 7 (b) is the figure that sees from the side.Spacer 5B is an insulator, is resin forming product, is formed with 2 screw through-hole 52.At its edge, be provided with teat 53 as the backstop of battery lead plate.Spacer 5C too.
The following describes the action of the scale of the present invention of above-mentioned structure.The object of wanting weighing is put into after figure do not show on the scale pan, and its weight transmitting is to scale pan supporting plate 8.Because the supporting frame side of straining body 1 is fixed on the pedestal, so only the movable frame side descends because of weight, movable electrode plate 7 also descends thereupon.Like this, but the expansion of the interval of fixed polar plate 6 and movable plate electrode 7, and two interelectrode static capacities change.By this variation, vibration frequency also changes, so, be transformed to loading value, the weight of object is presented on the display part.Circuit structure in this electrostatic capacity type scale is known, and its explanation is omitted.At this moment, if the weight of the object on the scale pan in rated weight, the pushing stopper section 8A of scale pan supporting plate 8 does not contact with the circumference 2A of straining body anchor clamps 2, but movable plate electrode 7 does not contact with the teat 53 of spacer 5B yet.
When the object that surpasses rated weight had been placed on the scale pan, the pushing stopper section 8A of scale pan supporting plate 8 contacted with the circumference 2A of straining body anchor clamps 2, sustains the weight above rated weight.Like this, the change of the movable frame side of straining body 1 is suppressed, and straining body 1 can not continue change.
When starting the scale pan, the movable frame side of straining body 1 also rises, and the last manner stopper 8B of scale pan supporting plate contacts with the circumference 2B of straining body anchor clamps 2, can not continue change again.Owing to be provided with this pushing stopper section 8A and last manner stopper 8B, so in common overload or when starting the scale pan, stress does not affact on the battery lead plate 6,7.
Below, the electrostatic capacity type scale with this sensing device portion is described, the situation when scale falls.Because straining body 1 is fixed on the rib 3A of base portion 3, so the supporting frame side does not produce big change usually.And the movable frame side is not owing to being fixed on the pedestal, so change easily.But pushing stopper section 8A contacts with the circumference 2A of straining body anchor clamps 2, so the change of straining body 1 is limited.At this moment, the movable electrode 7 that is fixed on the movable frame side of straining body 1 changes easily, is fulcrum with the position of being held under the arm by spacer 5C, 5D, is acting on the warping stress towards downside.But, but owing to the teat of movable plate electrode 7 contacts with the teat 53 of spacer 5B, so warping stress no longer further acts on the battery lead plate, can be suppressed in the limit of elasticity.Fixed polar plate 6 is also owing to below it is tight but movable plate electrode 7 being arranged, so be not easy to produce plastic yield.
Behind the stress of below, as its counter-force, towards the stress of top to scale.At this moment, fixed polar plate 6 is a fulcrum with the position of being held under the arm by spacer 5A, 5B, and warping stress acts on upside.But the teat of fixed polar plate 6 contacts with the teat 54 of spacer 5C.On battery lead plate, do not act on bigger warping stress, can be suppressed in the limit of elasticity.
Like this, the backstop of the battery lead plate according to the present invention in electrostatic capacity type scale structure can both be protected for the stress that descends direction or last direction, can suppress the plastic yield of battery lead plate.
In addition, according to this structure, during with automaton assembling sensing device portion, can assemble each parts from the top, in addition, when being fixed on scale pan supporting plate on the straining body, also can install,, can assemble sensing device simply with stop mechanism as long as move a little and can assemble at transverse direction from the top.
The 2nd embodiment of the present invention such as Fig. 8 are to shown in Figure 10.The sensing device portion that has only represented scale among the figure.Fig. 8 is a planimetric map, and Fig. 9 is an outboard profile, and Figure 10 is a back view.
L shaped teat 18A is formed at the bottom, two sides at the scale pan supporting plate 18 that connects the straining body 11 and the scale pan, in the gap of this side and L shaped teat 18A, forms projection 12A.This projection 12A is formed on the two sides of the straining body anchor clamps 12 that connect straining body 11 and pedestal.Among this embodiment, when the object that surpasses rated weight was placed on the scale pan, projection 12A contacted with the bottom, side of scale pan supporting plate 18, and in addition, when starting the scale pan, projection 12A contacts with the top of L shaped teat 18A.Like this, serve as the regulation masterpiece times spent in addition such as loading and last act, can suppress the change of straining body 11.
The 3rd embodiment of the present invention such as Figure 11 are to shown in Figure 13.Among the figure, only represent the sensing device portion of scale.Figure 11 is a planimetric map, and Figure 12 is the A-A line sectional drawing of Figure 11, and Figure 13 is the B-B back view of Figure 11.
In the bottom, two sides of the scale pan supporting plate 28 that connects the straining body 21 and the scale pan, form the teat 28A that prolongs towards supporting frame portion.On the straining body anchor clamps 22 that connect straining body and pedestal, form rectangular hole 22A.The teat 28A of scale pan supporting plate 28 holds under the arm in the 22A of this hole, and usually, when the mensuration of rated weight, they do not contact.
Among this embodiment, when the object that surpasses rated weight was placed on the scale pan, the teat 28A of scale pan supporting plate 28 contacted with the following of hole 22A of straining body anchor clamps 22, and in addition, when picking up the scale pan, teat 28A contacts with the top of hole 22A.Like this, spend the regulation masterpiece times spent in addition such as loading and last act, can suppress the change of straining body.
The 4th embodiment of the present invention such as Figure 14 are to shown in Figure 17.Among the figure, only represented the sensing device portion of scale.Figure 14 is a planimetric map, and Figure 15 is the A-A sectional drawing of Figure 14, and Figure 16 is the B-B line sectional drawing of Figure 14.Figure 17 is a back view.
Backstop among the 4th embodiment structure, identical substantially with the 3rd embodiment, its difference is, connecting the two sides of straining body 31 with the scale pan supporting plate 38 of the scale pan, the formation position difference of the teat 38A that prolongs towards the supporting frame side.On the straining body anchor clamps 32 that connect straining body and pedestal, form rectangular hole 32A.The teat 38A of scale pan supporting plate 38 holds under the arm in the 32A of this hole, and usually, when the mensuration of rated weight, they do not contact.
Among this embodiment, when the object that surpasses rated weight was placed on the scale pan, the teat 38A of scale pan supporting plate 38 contacted with the following of hole 32A of straining body anchor clamps 32, and when picking up the scale pan, teat 38A contacts with the top of hole 32A.Like this, serve as the masterpiece time spent that loading and last act are stipulated like this, can suppress the change of straining body.
Above, as embodiments of the invention, some kinds of sensing device portions have been described.They are by connecting the scale pan supporting plate of straining body with the scale pan, is connected the straining body anchor clamps formation of straining body and base portion, are the structure of the part embedding of the part of scale pan supporting plate and straining body anchor clamps.When having served as the above stress of regulation such as loading and last act, this embedded part contact, straining body can not continue distortion again.
Here the kind of said sensor is the electrostatic capacity type sensor that adopts the pair of electrodes plate.But be not limited to this, the present invention also is applicable to the load cell formula scale that adopts strainmeter.
In addition, the elastic body in the foregoing description is the electrostatic capacity type that adopts straining body, but is not limited to this that the present invention also is suitable for the scale of leaf spring as elastomeric sensor.
In addition, the shape of spacer also is not limited to the shape among the embodiment, can do suitable design alteration according to the size shape of elastic body and battery lead plate.
The stop mechanism of the sensing device portion according to the present invention in the scale, when having acted on loading or uplift force equal stress, the scale pan supporting plate that connects the scale pan and straining body be connected straining body and contact with the straining body anchor clamps of base portion, like this, can limit the distortion of straining body, so, special parts needn't be set, can prevent the permanent strain of straining body.
In addition, the stop mechanism of the sensing device portion according to the present invention in the scale, among the pair of electrodes plate as sensor, the 1st electrode is installed in elastomeric fixation side, the 2nd electrode is installed in elastomeric movable side, in elastomeric fixation side, the stopper section of restriction the 2nd battery lead plate change is set, in elastomeric movable side, limit the change of the 1st battery lead plate, when having acted on when falling equal stress, only change slightly, the stopper section contacts with battery lead plate, so, can limit the change of battery lead plate, like this, the plastic yield that special parts just can prevent battery lead plate needn't be set.
In addition, in according to the present invention for the countermeasure of crossing loading and uplift force with for the countermeasure of falling, each parts in the sensing device portion are to adopt aluminium, iron, so can be processed into high dimensional accuracy, only sensing device portion gets final product countermeasure, and this countermeasure needn't be regulated parts, and labor content also reduces.
In addition,, be used to detect the parts of loading, also have effect concurrently, so the change that can prevent to stipulate above above-below direction prevents that component number from increasing as stop part according to the structure of the 1st invention.
In addition, according to the structure of the 3rd invention, can be the change of the free end of maximum battery lead plate for the variation of impacting with stopper section restriction, so, the free end of battery lead plate and the gap of stopper section can admit of than mistake, so the making of load-weight sensing device is easy.
Claims (3)
1. a title is characterized in that, described title is made of the load-weight sensing device with stop mechanism; Have: the straining body that is out of shape and has carriage side and mobile frame side according to the weight of object that is placed on the pan of a steelyard; The sensor of the corresponding electric signal of deflection of output and straining body, but described sensor is the pair of electrodes plate that is made of fixed polar plate and movable plate electrode; Form definite shape and connect straining body and the pan of a steelyard supporting plate of pan of a steelyard by a sheet material, as the part of described pan of a steelyard supporting plate, comprise be used for the mobile restriction of straining body within the specific limits have bar-shaped of top and bottom; And form definite shape and straining body is connected straining body anchor clamps on the pedestal by a sheet material, as the part of described straining body anchor clamps, comprise being used for the mobile restriction of straining body empty shape portion within the specific limits with top and bottom;
Described stop mechanism is when exceeding the crossing loading or uplift force and act on the straining body of rated weight, because of the top and bottom of the empty shape portion of bar-shaped top and bottom of pan of a steelyard supporting plate and straining body anchor clamps contact with the mobile restriction of straining body within the specific limits, thereby can stop the distortion of straining body;
Described carriage side at described straining body, be provided with: as the spacer of insulator, described fixed polar plate, but the teat that is contacted when having the downward side warpage of described movable plate electrode and as the spacer of insulator, but and teat that is contacted with described spacer, described fixed polar plate with when having the downward side warpage of described movable plate electrode and the screw that grips in proper order as the spacer of insulator as insulator;
Described movable frame side at described straining body, be provided with: have teat that described fixed polar plate contacted and when the upside warpage as the spacer of insulator, but described movable plate electrode, spacer as insulator, but and will have teat that described fixed polar plate contacted and seize fixing screw in proper order on both sides by the arms when the upside warpage as the spacer of insulator, described movable plate electrode and described spacer as insulator.
2. a title is characterized in that, described title is made of the load-weight sensing device with stop mechanism; Have: the straining body that is out of shape and has carriage side and mobile frame side according to the weight of object that is placed on the pan of a steelyard; The sensor of the corresponding electric signal of deflection of output and straining body, but described sensor is the pair of electrodes plate that is made of fixed polar plate and movable plate electrode; Form definite shape and connect straining body and the pan of a steelyard supporting plate of pan of a steelyard by a sheet material,, comprise being used for the mobile restriction of straining body empty shape portion within the specific limits with top and bottom as the part of described pan of a steelyard supporting plate; And form definite shape and straining body be connected straining body anchor clamps on the pedestal by a sheet material, as the part of described straining body anchor clamps, comprise be used for the mobile restriction of straining body within the specific limits have bar-shaped of top and bottom;
Described stop mechanism is when exceeding the crossing loading or uplift force and act on the straining body of rated weight, because of the top and bottom of the empty shape portion of pan of a steelyard supporting plate contact with bar-shaped top and bottom of straining body anchor clamps with the mobile restriction of straining body within the specific limits, thereby can stop the distortion of straining body;
Described carriage side at described straining body, be provided with: as the spacer of insulator, described fixed polar plate, but the teat that is contacted when having the downward side warpage of described movable plate electrode and as the spacer of insulator, but and teat that is contacted with described spacer, described fixed polar plate with when having the downward side warpage of described movable plate electrode and the screw that grips in proper order as the spacer of insulator as insulator;
Described movable frame side at described straining body, be provided with: have teat that described fixed polar plate contacted and when the upside warpage as the spacer of insulator, but described movable plate electrode, spacer as insulator, but and will have teat that described fixed polar plate contacted and seize fixing screw in proper order on both sides by the arms when the upside warpage as the spacer of insulator, described movable plate electrode and described spacer as insulator.
3. an electrostatic capacity type claims, it is characterized in that, described electrostatic capacity type claims to be made of load-weight sensing device; Have:
But possess an end be fixed on the straining body of the carriage side of the Luo Baiwaer mechanism on the pedestal and movable frame side and constitute by fixed polar plate and movable plate electrode, as the pair of electrodes plate of output with the sensor of the corresponding electric signal of deflection of straining body;
Described carriage side at described straining body, be provided with: as the spacer of insulator, described fixed polar plate, but the teat that is contacted when having the downward side warpage of described movable plate electrode and as the spacer of insulator, but and teat that is contacted with described spacer, described fixed polar plate with when having the downward side warpage of described movable plate electrode and the screw that grips in proper order as the spacer of insulator as insulator;
Described movable frame side at described straining body, be provided with: have teat that described fixed polar plate contacted and when the upside warpage as the spacer of insulator, but described movable plate electrode, spacer as insulator, but and will have teat that described fixed polar plate contacted and seize fixing screw in proper order on both sides by the arms when the upside warpage as the spacer of insulator, described movable plate electrode and described spacer as insulator.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP241498/2000 | 2000-08-09 | ||
| JP2000241498A JP3761392B2 (en) | 2000-08-09 | 2000-08-09 | A balance comprising a load sensor unit having a stopper mechanism |
| JP2000254798A JP3969940B2 (en) | 2000-08-25 | 2000-08-25 | Capacitance scale |
| JP254798/2000 | 2000-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1337569A CN1337569A (en) | 2002-02-27 |
| CN1175256C true CN1175256C (en) | 2004-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011245808A Expired - Lifetime CN1175256C (en) | 2000-08-09 | 2001-08-09 | Balance with load-weight sensing device having stopping mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1175256C (en) |
| TW (1) | TW507066B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4677043B2 (en) * | 2009-06-10 | 2011-04-27 | 日東精工株式会社 | Torque sensor |
| CN108692798A (en) * | 2018-08-21 | 2018-10-23 | 上海寺冈电子有限公司 | Weighing sensor and weight scale including it |
-
2001
- 2001-07-20 TW TW90117841A patent/TW507066B/en not_active IP Right Cessation
- 2001-08-09 CN CNB011245808A patent/CN1175256C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1337569A (en) | 2002-02-27 |
| TW507066B (en) | 2002-10-21 |
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Granted publication date: 20041110 |