CN85104631B - Improvement of weighting method - Google Patents
Improvement of weighting method Download PDFInfo
- Publication number
- CN85104631B CN85104631B CN85104631A CN85104631A CN85104631B CN 85104631 B CN85104631 B CN 85104631B CN 85104631 A CN85104631 A CN 85104631A CN 85104631 A CN85104631 A CN 85104631A CN 85104631 B CN85104631 B CN 85104631B
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- CN
- China
- Prior art keywords
- lever arm
- bar
- counterweight
- pan
- steelyard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Tape Measures (AREA)
Abstract
The present invention relates to a lifting lever weighing device, which is especially suitable for people of retail trades. A lever arm is used by a lever scale offered according to the present invention; an object to be weighed and a counterweight are respectively placed at both ends of the lever arm. A strain gage is fixed on the lever arm to monitor the flexure of the lever arm; the weight of the object is calculated by the measured flexure. The strain gage is connected with an electronic device which is provided with a calculator; the present invention is provided with a display system to display the measured weight according to the selected display units.
Description
Involved in the present invention is the improvement of weighing aspect, the improvement that the bar that particularly relevant weighing object is used claims.
Bar claims it is a kind of balance arm weighing apparatus, comprises an armed lever, and a fulcrum is arranged between weight that needs weighing and counterweight, for gravimetry, need to regulate the amount of counterweight, and it is corresponded to fulcrum moves.Hand is held bar and is claimed very general in the Asia.
So bar is referred to as welcome, one of its reason is because cheap, but why extremely welcome in public market it is undoubtedly, also is because it has just Portability, is easy to collection, and does not need the operation place fixed.
A kind of weighing device is disclosed among the BrP GB1506955, it has the weight display device, balance arm, the scale pan by the balance arm support, a kind of feeler arm directly or not directly connects balance arm, when balance arm rotated, feeler arm was fit to crooked, and a vane is contained in the demonstration that is used for producing weight on the feeler arm.
Check but be to use bar to claim to be not easy to client, client is deceived by this of retailer being easy to aspect calculation of price and the weight estimation.Therefore the purpose of this invention is to provide and a kind ofly claim similar weighing apparatus, and above-mentioned existing problems can major part be avoided to bar.
Propose a kind of bar according to the present invention and claim, object is by armed lever in a basic balance, in the amount of deflection that produced by the counterweight effect, comes gravimetry.For this purpose, a foil gauge has been installed on lever arm, be connected with the electronic equipments of a sounding rod crook of the arm square.Electron device goes out the reading of weight in the pan of a steelyard according to this measure calculation, and reading is shown, can give the suitable program of this device, makes bar claim to point out any selected unit of weight, and after changing counterweight, the indication of the scope that can respectively weigh.The lever arm that claims with known bar compares, and the used weighing lever of the present invention has relative toughness, available plastic material on it is made.
Therefore, though electronic range claims in appearance to claim similarly to balance stem that different principles is adopted in its operation, and not need the end user to do any might be calculating wrong or that cause error.And because the end user need regulate counterweight, obtaining balance roughly, this operation seems and closes very much tradition for client, though do not need to obtain balance accurately as traditional bar claims.
Below in conjunction with accompanying drawing, embodiments of the invention are described.
Bar among the figure claims to have a lever arm 2, is supported on the fulcrum 4 of fixedly point midway of lever arm, and lever arm itself has on the housing 8 of electron device in being suspended on chain 6, and electron device will be narrated hereinafter.On housing 8, there is one and carries handle 10.A bar dish 12 as shown in FIG. is installed on the left hand end of lever arm, is suspended on tooth shape and supports on 14, this support generally is a groove on lever arm, allows inside to swing.Have a foil gauge 16 be fixed on tooth shape on the lever arm support 14 and fulcrum 4 between, detect the deflection degree of lever arm 2.Foil gauge is connected with electron device with lead 18.Yet the position that is appreciated that foil gauge 16 can change, so electron device needs specific program to each particular location.As shown in the figure, on the right of fulcrum 4, have a tooth shape to support 22 on the lever arm 2, counterweight 20 is suspended on this skill 22.Tooth shape supports 22 and can move along the upper surface of the rule of lever arm 2, so as when to claim object the lever arm balance.
Electron device in the housing 8 has a counter to be connected with a display device 24 and an input keyboard 26.Lead 18 links to each other with counter and suitable power supply.Power supply can be AC power or battery.Keyboard can make counter be adjusted to zero-bit, the selected then unit of weight that needs employing.To counter certainly established procedure do the calculating of various unit of weights, and if needed, can stipulate to accept the scope of some weight.Like this, can change counterweight 20 whenever necessary, also can change lever arm itself.The lever arm of changing 2 generally has above its foil gauge 16 is installed in, and just needs the original lever arm of replacement, goes to be connected with counter.
Foil gauge, lever arm and counter can be made standardized production, and pan of a steelyard and counterweight then can be determined according to the concrete volume and weight of the typical object of wanting weighing.So the retailer can claim each counterweight and pan of a steelyard to be added on the standard lever arm easily to use, and calculate according to the breed difference of the object for the treatment of weighing.
Use foil gauge and toughness lever arm to make the some of weighing device, deserving to be called with pound with similar shop at electronic scale is that the people is known, so, structure for suitable lever arm, with with the combining of foil gauge, and the output of the electric signal of institute's foil gauge, electricity consumption device be transformed into and show weight or the like, all be that the people is known, thought in this manual and do not had necessity of laying down a definition again.Utilize diode take place to show or liquid crystal display also all has been technology common to all, also think in this manual unnecessaryly to have narrated again.
When the electronic range that uses the present invention to propose claims, there is free pan of a steelyard on lever arm, to do the adjusting of horizontal direction earlier, the weight indication is adjusted to zero-bit, and the output of subsidiary counter also set to zero.Then the object for the treatment of weighing is put into pan of a steelyard, counterweight is moved to the direction of leaving fulcrum, up to the balance that roughly obtains on the horizontal line.And then unit of weight, no matter be pound, jin, still kilogram is charged to counter, and unit price, also charges to as some units per jin etc.So just make basic carbon with the data of measuring and charging to of elasticity moment of flexure, calculated weight and price, and show.
Some advantages that the present invention has are listed below:
1. can in many unit of weights, do change and carry out the weighing operation.Client can select unit of weight like this, as pound, and jin, kilogram etc., these characteristics are very important to being engaged in the society that carries out voluntary metrication.
2. the weight that need not argue and the information of price are shown to client.
3. in finite time, obtain average moment of flexure with electron device, in weighing, get such accuracy, claim it generally is inaccessiable with hand-held rod.
4. the skill that claims end user's needs than hand-held rod still less.
5. in the Asia of still enjoying traditional dealing, electronics shows and makes the progressive social feeling of people, makes client that trust psychology be arranged yet have with traditional similar in appearance and using method.
Claims (7)
1, a kind of bar claims, comprise a lever arm on the fulcrum that is supported between pan of a steelyard supporting-point and the counterweight supporting-point, it is characterized in that: a foil gauge that is used to detect the deflection degree of lever arm is installed in lever arm, foil gauge is connected with an electronic installation, when the object in the pan of a steelyard during by the counterweight balance, measure the flexibility of lever arm, and calculate the weight that pan of a steelyard bears, comprise a display device in the described electronic installation from flexibility.
2, claim according to the bar in the claim 1, it is characterized in that: foil gauge is installed between lever arm fulcrum and the pan of a steelyard supporting-point.
3, claim according to the bar in claim 1 or 2, it is characterized in that: electronic installation is installed in the housing, is equipped with on the housing and carries handle.
4, claim according to the bar in claim 1 or 2, it is characterized in that: the supporting-point of pan of a steelyard is fixed, and the supporting-point of counterweight can move.
5, claim according to the bar in claim 1 or 2, it is characterized in that: electronic installation can be selected preset sequence, selects a kind of demonstration weight in some measurement units.
Claim according to the bar in claim 1 or 2 that 6, characteristics are that electronic installation can use different lever arms to select preset sequence.
Claim according to the bar in claim 1 or 2 that 7, characteristics are that electronic installation can be selected preset sequence, so that use the combination of different lever arm and counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104631A CN85104631B (en) | 1985-06-15 | 1985-06-15 | Improvement of weighting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104631A CN85104631B (en) | 1985-06-15 | 1985-06-15 | Improvement of weighting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85104631A CN85104631A (en) | 1986-12-10 |
| CN85104631B true CN85104631B (en) | 1988-08-10 |
Family
ID=4793967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85104631A Expired CN85104631B (en) | 1985-06-15 | 1985-06-15 | Improvement of weighting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85104631B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2541467A (en) * | 2015-08-21 | 2017-02-22 | Kenwood Ltd | Scales |
-
1985
- 1985-06-15 CN CN85104631A patent/CN85104631B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85104631A (en) | 1986-12-10 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |