CN102401687B - Scale - Google Patents

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Publication number
CN102401687B
CN102401687B CN 201110272775 CN201110272775A CN102401687B CN 102401687 B CN102401687 B CN 102401687B CN 201110272775 CN201110272775 CN 201110272775 CN 201110272775 A CN201110272775 A CN 201110272775A CN 102401687 B CN102401687 B CN 102401687B
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China
Prior art keywords
mentioned
metering disk
scale
supporting member
response body
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CN 201110272775
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CN102401687A (en
Inventor
佐佐木智宏
黑泽义美
石川诚
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Tanita Corp
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Tanita Corp
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Priority claimed from JP2011115682A external-priority patent/JP5073845B2/en
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Abstract

The invention provides a scale, which can remove static electricity through a simple structure. The scale (100) comprises a calculating disc (10) for carrying an object to be weighed; a disc support component (30) equipped on the lower part of the calculating disc for supporting the calculating disc; a weighing sensor (40) having a metal adaptive body (41) equipped on the lower part of the disc support component and applied for measuring the load exerted on the calculating disc; a metal bolt (b3) for connecting the adaptive body and the disc support component; a metal spiral spring (90) contacting the back face of the calculating disc and the bolt; a frame (60) being a metal component making the adaptive body installed on the bottom of a housing (50) and set to have a constant standard potential; and a metal bolt (b1) connecting the adaptive body and the frame. Furthermore, the calculating disc is electrically connected with the frame through the spiral spring, the bolts and the adaptive body.

Description

Scale
Technical field
The present invention relates to a kind of for the scale of measuring weight of object.
Background technology
For example when the metering disk that causes scale because of friction etc. is charged, be difficult to measure accurately, therefore, expectation prevents such a electrification phenomenon.For example in patent documentation 1, disclose the sheet metal (electroconductive member) that a kind of utilization is arranged on the upper surface of main body cover and remove the such technology of static.
Patent documentation 1: TOHKEMY 2008-76069 communique
But, in patent documentation 1 disclosed technology, above-mentioned sheet metal need be arranged on the upper surface of main body cover, and the metal web joint that will be connected with this sheet metal is arranged at base, therefore, be used for removing the complex structure of static.As a result, existing needs to change on a large scale design, and manufacturing cost also increases such problem.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of scale that can utilize simple structure to remove static.
In order to solve above problem, means of the present invention are described below.In addition, in order to understand the present invention easily, below with bracket mark easily in the accompanying drawing with reference to Reference numeral, but be not the meaning that the present invention is defined in diagramatic way.
Scale of the present invention (100) is characterised in that, comprising: metering disk (10), and it can be used for the measured object of mounting; Dish supporting member (30), it is configured in the below of metering disk, is used for the supporting metering disk; LOAD CELLS (load cell) (40), it comprises the metal response body (41) of the below that is configured in the dish supporting member, and is used for measuring the load that is applied in metering disk; Metal the 1st screw member (b3), it is for the member that connects response body and dish supporting member, coils the head (H) that supporting member exposes certainly and is positioned at than position on the lower, the metering disk back side; Conductive member (90), the two contacts itself and the back side of metering disk and the 1st screw member; Shell (50), it is used for storing tray supporting member and LOAD CELLS; Framework (60), it is for the metal member that response body is installed on the shell bottom surface, is set to constant reference potential (ground connection); Metal the 2nd screw member (b1), it is used for connecting response body and framework; Metering disk is electrically connected with framework by conductive member, the 1st screw member, response body and the 2nd screw member.
In the present invention, be provided with the back side and the two contacted conductive member of the 1st screw member with metering disk, and framework ground connection (being set to constant reference potential).And metering disk is electrically connected with framework by conductive member, the 1st screw member, response body and the 2nd screw member.That is, adopt the present invention, have the such advantage of electric charge that to utilize the simple and easy and cheap construction that needn't change design especially to remove metering disk reliably.In addition, the said reference current potential is set to the such value of electric charge that can remove metering disk and gets final product, and this value can at random be set.
In addition, adopt the present invention, the electric conductivity between metering disk and the response body is guaranteed by the 1st screw member and conductive member.At this, because the 1st screw member is metal system, therefore, also can consider only to utilize the 1st screw member to guarantee electric conductivity.In this case, the head that need be installed as the 1st screw member contacts with the back side of metering disk.But when the upper surface that coils supporting member was outstanding, metering disk can rock on the crown of the 1st screw member.In addition, the damaged situation that also can cause that metering disk cracks etc.Therefore, in the present invention, form after the 1st screw member is fastening its crown and be positioned at upper surface position on the lower than the dish supporting member.That is, the crown of the 1st screw member is positioned at the position on the lower, the back side than metering disk.And, on this basis, use conductive member that metering disk and response body are electrically connected.Thereby, adopt this form, can when avoiding producing bad that metering disk rocks, crackle is such, guarantee the electric conductivity between metering disk and the response body reliably.
As the form of scale of the present invention, conductive member (90) is formed by elastic body, and this elastic body is pressed by the back side of above-mentioned metering disk and be compressed on vertical direction.Thus, compared by the form that plastomer forms with conductive member, the two contacts with metering disk and screw member reliably can easily to realize making conductive member.That is, needn't carry out be used to avoiding above-mentioned bad adjustment, assembling easily.Therefore, operating efficiency is improved.
As preferred form, also can be that above-mentioned elastic body is formed by volute spring (90), above-mentioned volute spring with its axis (axis in axle center) and vertical direction roughly consistent mode dispose, one end of above-mentioned helical spring wire rod has the outshot (90a) radially outstanding with respect to this helical spring axis direction, this outshot is the cranse shape, and above-mentioned outshot is held fastening between the head and above-mentioned dish supporting member of above-mentioned the 1st screw member.At this, helical spring " axis is roughly consistent with vertical direction ", refer to as long as pressed by the back side of above-mentioned metering disk under by the state of fastening and compressed on vertical direction at volute spring, be exactly and this vertical direction " roughly consistent ", comprise because the error that the error when installing or other reasons produce cause helical spring axis produce angular deviation so that not with the on all four state of vertical direction.Adopt this form, as conductive member, can suppress manufacturing cost by the common material that volute spring is such.If using under the helical spring situation that does not have outshot, first-class as the bar portion that helical spring wire rod end is rolled onto the 1st screw member, the coil axle center can tilt, and is easy to generate bad during installation.With respect to this, adopt this form, get final product between the supporting member owing to only above-mentioned outshot retaining wedge is fixed on head and the dish of the 1st screw member, therefore, can suppress to produce bad, operating efficiency significantly is improved.In addition, do not have the helical spring situation of outshot to compare with use, can guarantee electric conductivity more reliably.
In addition, in this form, might not use be formed with the volute spring of above-mentioned outshot in advance.Because volute spring can easily be out of shape, therefore, can after having formed above-mentioned outshot this outshot be wound in the 1st screw member making the helical spring end distortion of peddling usually.In this case, have and do not need to change on a large scale design (not needing for the initial cost of preparing new-type mould etc.) and just can become the such advantage of conductor wire with metering disk and the electrical connection of the 1st screw member.
As the form of scale of the present invention, preferably also comprise the protection member (20) for the protection of the metering disk surface, be provided with concavo-convex on the surface (back side) that the metering disk surface is covered a side of protection member.Thereby for example can be processing to be implemented on the surface that the metering disk surface is covered a side of protection member make it have tiny concavo-convex form.Be formed with concavo-convexly by the surface that the metering disk surface is covered a side at the protection member, the area with the contacted part of metering disk on this surface diminishes, and therefore, has can reduce because of friction and waits the such advantage of carried charge that produces.For example under protection member situation about being formed by organosilicon, the carried charge that produces because of the friction with metering disk can increase, and therefore, being processed into the surface of protecting member, to have the concavo-convex effect of bringing remarkable.
Concrete form as scale of the present invention, also can be following form: comprise that the dependent variable according to response body calculates the calculating part of load value (43), accommodate battery (70) in the enclosure, this battery plays the effect of power supply of calculating part and the current potential of a terminal is configured to reference potential, and this terminal is electrically connected with framework by lead (80).
As the concrete form of scale of the present invention, also can be that above-mentioned metering disk and above-mentioned dish supporting member are formed by resin.As this resin, there are ABS resin (acrylonitrile-butadiene-styrene (ABS) copolymerization resin), AS resin (acrylonitrile-styrene copolymerized synthetic resin), acryl resin, other suitable resin.Use under the situation of metal in instead of resins, the weight of metering disk, dish supporting member self becomes heavy, therefore, is not easy to realize the lightweight of scale integral body.In addition, the initial vibration displacement under the situation about vibrating because of load is bigger, and therefore, the decay spended time of vibration is unfavorable for high resolving powerization.With respect to this, being formed by resin under the situation of metering disk, realize lightweight, the high resolving powerization of scale easily, on the other hand, exist electric charge to be easy to be trapped in also more such shortcoming of metering disk and carried charge.In the present invention, the conductive path as from metering disk to dish supporting member, LOAD CELLS, framework forms the path that is made of conductive member, the 1st screw member, response body and the 2nd screw member.That is, even under a large amount of charged situations of metering disk, also can remove the electric charge of delay via this path reliably.
Description of drawings
Fig. 1 is the exploded perspective view of the scale of embodiments of the present invention.
Fig. 2 is the exploded perspective view of dish supporting member, LOAD CELLS and framework.
Fig. 3 is the cut-open view of scale.
Fig. 4 is the side view of protection member.
Embodiment
A: embodiment
Below, with reference to the description of drawings embodiments of the present invention.Fig. 1 is the exploded perspective view of the scale 100 of embodiments of the present invention.As shown in Figure 1, scale 100 comprise metering disk 10 for the measured object of mounting, for the protection of the protection member 20 of the organosilicon system on the surface of metering disk 10, be configured in the below of metering disk 10 and be used for supporting metering disk 10 dish supporting member 30, be used for measuring the load that metering disk 10 is applied LOAD CELLS 40, and be used for accommodating the resinous shell 50 of resinous dish supporting member 30 and LOAD CELLS 40.
The illustrated scale 100 of present embodiment is scales of culinary art usefulness, can measure the cooking materials that is positioned on the metering disk 10.Metering disk 10 is formed by ABS resin.Measured object can be positioned on this metering disk 10 and measure, and also can be positioned on the protection member 20 to measure.The surface of metering disk 10 is processed to level and smooth shape.This is to have considered that measuring measured object is operability such as wiping easness, outward appearance good behind the food materials and processing.In addition, metering disk 10 is not limited to AB S resin, also can use AS resin (acrylonitrile-styrene copolymerized synthetic resin), acryl resin or other suitable resins.
Protection member 20 is formed by organic siliconresin, can remove washing by self-measuring dish 10.Because organic siliconresin has flexibility and hydrophobic nature excellent characteristic, therefore, is suitable as the protection member 20 of this purposes.In addition, because organic siliconresin only just can be easy and painted at an easy rate by hybrid pigment, therefore, also improved aesthetic appearance.In addition, as protection member 20, also can substitute and use organic siliconresin and use stainless steel.
Dish supporting member 30 forms by sneak into antistatic agent in ABS resin.LOAD CELLS 40 is metal system, and it comprises the metal response body 41 that is configured in dish supporting member 30 belows, and constitutes for detection of the detecting element (not shown) of the surface strain of response body 41.Response body 41 is installed (fixing) on the bottom surface of shell 50 by the framework 60 of metal system (for example galvanized steel plain sheet).In shell 50, also contain for coming the control substrate 43 of assumed (specified) load value according to the dependent variable of response body 41 and playing the battery 70 of power supply effect of control substrate 43.At this, a terminal of battery 70 is set to ground level.More particularly, the current potential of the terminal of the negative side of battery 70 is set to " 0 " V.And because the terminal of this negative side is connected by metal lead 80 with framework 60, therefore, the current potential of framework 60 maintains 0V.That is, we can say framework 60 ground connection.
Fig. 2 is the exploded perspective view of dish supporting member 30, LOAD CELLS 40 and framework 60.As shown in Figure 2, are metal blockss of roughly rectangular parallelepiped as the response body 41 of the constitutive requirements of LOAD CELLS 40, be provided with the aperture portion 42 that runs through its side.The shape of aperture portion 42 is set to the Response Division that is formed with 4 place's thin-walleds in response body 41.In the present embodiment, the shape of aperture portion 42 is set to the shape that two circular ports link.That is, utilize two circular ports, be formed with the position of the thickness attenuation between the inner peripheral surface of 4 place's aperture portion 42 and the outside surface of response body (upper surface or lower surface), the position of this 4 place thickness attenuation becomes Response Division (44a, 44b, 44c, 44d).The LOAD CELLS 40 of present embodiment is the LOAD CELLS of uncle sieve Weir (Roberval) type, and 4 Response Divisions (44a, 44b, 44c, 44d) are equivalent to the summit of the parallelogram of uncle sieve Weir mechanism.In the zone in the upper surface of response body 41 and lower surface, corresponding with each response body, be pasted with detecting element (not shown) for detection of the surface strain of each Response Division across insulator (not shown).These detecting elements are connected in control substrate 43 by lead (not shown).
Response body 41 is the cantilevered construction with stiff end E1 and movable end E2.As shown in Figure 2, the stiff end E1 of response body 41 is connected in framework 60 by metal two bolt b1.In addition, this framework 60 is fixed on the bottom surface of shell 50 by bolt (not shown).That is, framework 60 plays for the effect that response body 41 is installed in the member on shell 50 bottom surfaces.And as shown in Figure 2, an end of lead 80 is connected on the framework 60 by metal bolt b2.And another end of this lead 80 is connected in the negative side terminal of battery 70.
As shown in Figure 2, the upper surface of movable end E2 is connected in dish supporting member 30 by two metal bolt b3.More particularly, as described below.As shown in Figure 2, dish supporting member 30 is the members with essentially rectangular of specific thickness, is loaded with metering disk 10 on the surface 32 thereon.In addition, the regulation zone in the upper surface 32 of dish supporting member 30 is formed with slot part 34, and being formed with two in the bottom surface of slot part 34 can be for the through hole 36 of bolt b3 perforation.Upper surface at movable end E2 is formed with processed female hole 38.Bolt b3 is by head H and be processed with the externally threaded bar Ax of portion and constitute, and is tightened against hole 38 by the Ax of bar portion that runs through through hole 36, dish supporting member 30 and response body 41 mechanical connections.In the present embodiment, as shown in Figure 3, the crown (height and position a2) of coiling the bolt b3 head H of the bottom surface of the slot part 34 of supporting member 30 exposing certainly is positioned at upper surface 32 (height and position a1) position on the lower than dish supporting member 30.In other words, be following situation: the head H of bolt b3 (height and position a2) is positioned at the position on the lower, the back side than the metering disk 10 on the upper surface 32 (height and position a1) that is positioned in dish supporting member 30.
In addition, as shown in Figure 2, bolt b3 tightens under an end of metal volute spring 90 is sealed at state between its head H and the slot part 34.Under this state, when dish supporting member 30 was loaded with metering disk 10, the other end of volute spring 90 contacted with the back side of metering disk 10.That is, volute spring 90 is measured that dish 10 the back side is pressed and compressed on vertical direction, becomes the back side and the two contacted state of bolt b3 with metering disk 10.More particularly, as shown in Figure 2, volute spring 90 with the axis in its axle center and vertical direction roughly consistent mode dispose, an end of its wire rod has with respect to this helical spring axis direction outshot of outstanding cranse shape (hereinafter to be referred as making " cranse ") 90a radially.As being understood by Fig. 2 and Fig. 3, cranse 90a is held fastening between the bottom surface of the slot part 34 of the head H of bolt b3 and dish supporting member 30 with the form of the Ax of bar portion that is wound in bolt b3.Like this, coiler part that can be by bolt b3, volute spring 90 and cranse 90a guarantee the electric conductivity between metering disk 10 and the response body 41.
Because bolt b3 is metal system, therefore, even do not use volute spring 90 can guarantee electric conductivity yet.But when the electric conductivity of desiring only to guarantee by bolt b3 between metering disk 10 and the response body 41, the head H that need be installed as bolt b3 directly contacts with the back side of metering disk 10.In this case, in case the head of bolt b3 is outstanding from the upper surface that is positioned at metering disk one side that coils supporting member, metering disk 10 can rock.In addition, the damaged situation that also can cause that metering disk 10 cracks etc.Therefore, in the present embodiment, its head is positioned at the low position (height and position a2) of upper surface 32 (height and position a1) than dish supporting member 30 after bolt b3 is fastening, and adds use volute spring 90 with metering disk 10 and response body 41 electrical connections.Thereby, adopt this form, can when avoiding producing bad that metering disk rocks, crackle is such, guarantee the electric conductivity between metering disk 10 and the response body 41 reliably.In addition, because use volute spring 90, therefore, needn't carry out be used to avoiding bad adjustment, assembling is easy, and operating efficiency is improved.Can suppress the such advantage of manufacturing cost by adopting common material, also having.
In addition, in the present embodiment, guarantee the electric conductivity of metering disk 10 and response body 41 by the cranse 90a that is in volute spring 90 1 ends.If do not have cranse and only have under the helical spring situation of coiler part in use, first-class as the bar portion that helical spring wire rod end is rolled onto bolt b3, the coil axle center can tilt, and is easy to generate bad during installation.With respect to this, in the present embodiment, get final product between the supporting member 30 owing to only cranse 90a retaining wedge is fixed on head and the dish of bolt b3, therefore, can suppress to produce bad, operating efficiency significantly is improved.In addition, do not have the helical spring situation of cranse to compare with use, can guarantee electric conductivity more reliably.
At this, to metering disk 10 imposed loads the time, this load is delivered to the movable end E2 of response body 41 via dish supporting member 30.Thus, each Response Division (44a, 44b, 44c, 44d) distortion, the detecting element corresponding with each Response Division (44a, 44b, 44c, 44d) will output to control substrate 43 with the corresponding detection signal of the surface strain of this Response Division.Then, control substrate 43 bases calculate the load value that is applied in metering disk 10 from the detection signal of each detecting element.
Fig. 3 is the cut-open view of the scale 100 of present embodiment.As also intelligible by Fig. 3, the back side of metering disk 10 is electrically connected with framework 60 by volute spring 90, bolt b3, response body 41 and bolt b1.As mentioned above, because framework 60 is connected in the terminal of the negative side of battery 70 by lead 80, therefore, the current potential of framework 60 maintains " 0 " V.Thereby, for example under charged situation of metering disk 10 because friction waits, save bit by bit the framework 60 that also can move to ground connection at the electric charge of metering disk 10 via volute spring 90, bolt b3, response body 41 and bolt b1.Thus, can remove the electric charge of saving bit by bit at metering disk 10.
But metering disk 10, dish supporting member 30 are not to be formed but the scale that formed by metal (for example stainless steel) is widely used by resins such as ABS resin.But in this case, the weight of metering disk, dish supporting member self becomes heavy, therefore, is not easy to realize the lightweight of scale integral body.In addition, the initial vibration displacement under the situation about vibrating because of load is bigger, and therefore, the decay spended time of vibration is unfavorable for high resolving powerization.With respect to this, under the situation of resin, the decay of vibration can spended time, realizes lightweight easily yet, on the other hand, exists electric charge to be easy to be trapped in yet more such problem of metering disk 10 and dish supporting member 30 and carried charge.Therefore, in the present embodiment, the conductive path as from metering disk 10 to dish supporting member 30, LOAD CELLS 40, framework 60 forms the path that is made of volute spring 90, bolt b3, response body 41 and bolt b1.Therefore, even under metering disk 10, dish supporting member 30 a large amount of charged situations, also can remove the electric charge of delay via this path reliably.Thereby, adopt present embodiment, can when keeping the advantage such by high resolving powerization, the lightweight of using ABS resin to obtain as metering disk, dish supporting member, get rid of charged harmful effect to the measured value generation.
In addition, as mentioned above, because the detecting element of LOAD CELLS 40 sticks on the surface of response body 41 across insulator, therefore, even self-measuring dish 10 passes through in response body 41 towards the electric charge that framework 60 moves, detecting element also can not be subjected to the influence of this electric charge, also detection signal that can output error.That is, even flow to electric charge process in response body 41 of framework 60, can not produce any influence to load measurement yet.
In addition, because lead 80 is connected in the terminal of the negative side of battery 70, thereby the current potential of framework 60 maintains " 0 " V, therefore, can make the negative side current potential of LOAD CELLS 40 identical with the negative pole current potential of control substrate 43.Therefore, adopt this structure, not only can remove electric charge reliably, also can suppress to produce measuring error.
As above explanation, in the present embodiment, be provided with the back side and the two contacted metal volute spring 90 of bolt b3 (metal the 1st screw member that is used for terminal pad supporting member 30 and response body 41) with metering disk 10, and, be connected in framework 60 ground connection of response body 41.And metering disk 10 is electrically connected with framework 60 by volute spring 90, bolt b3, response body 41 and bolt b1.That is, adopt present embodiment, can utilize the simple and easy and cheap construction that needn't change design especially to remove the electric charge of metering disk 10 reliably.
But, consider preferably have the material of antistatic agent to form metering disk 10 by adding from preventing metering disk 10 charged such aspects.But; as present embodiment; can with respect to metering disk 10 loading and unloading be provided with under the situation for the protection of the protection member 20 on metering disk 10 surfaces; when loading and unloading protection member 20; since protection member 20 metering disk 10 is covered the surface (back side) of a side and the back side of metering disk 10 rubs mutually, metering disk 10 is understood charged.In addition, because protection member 20 forms by organic siliconresin, therefore, the adaptation of itself and metering disk 10 is stronger, and carried charge is more.Therefore, even have the material of antistatic agent to form metering disk 10 by adding, be difficult to also prevent fully that metering disk 10 is charged.
Therefore; in the present embodiment; as mentioned above; except metering disk 10 is connected with the framework 60 of ground connection (electrical connection) by volute spring 90, bolt b3, response body 41 and bolt b1, the surface (back side) that also covers a side on the surface to metering disk 10 (upper surface) of protection member 20 is provided with concavo-convex (with reference to Fig. 4).More particularly, processing is implemented on the surface (back side) that the surface to metering disk 10 (upper surface) of protection member 20 is covered a side, thereby it is tiny concavo-convex that it is had.Thus, for forming irregular situation at this back side.Like this, concavo-convex by forming at the back side of protecting member 20, the area of the part that the surface with metering disk 10 in this back side contacts diminishes, and therefore, obtains reducing the such advantage of carried charge that waits generation because of friction.
In addition, can consider that also by the upper surface of taking in dish (with the surface of contact of measured object) when measuring resin projection being set dwindles contact area with measured object, reduces electrostatic capacitance.But in case not at the back side of lid but when on the surface of metering disk projection being set, then measured objects such as food materials directly are being positioned under the situation that metering disk measures, the operability of wiping etc. worsens, and is also unhygienic.In addition, also variation of outward appearance.
B: variation
The present invention is not limited to above-mentioned embodiment, for example can carry out following distortion.In addition, also the plural variation in the variation shown below can be combined.
(1) variation 1
In the above-described embodiment, the two contacts metal volute spring 90 and metering disk 10 and bolt b3, but is not limited thereto, with the kind of metering disk 10 and the two contacted conductive member of bolt b3 be arbitrarily.As an example, except volute spring, can also list rubber component, electroconductive resin of electric conductivity etc.But, as above-mentioned embodiment, compared by the form that metal plastomer forms with conductive member, adopt conductive member by the form that metal elastic body forms, have can easily realize making conductive member reliably with the such advantage of metering disk 10 and the two contacted form of bolt b3.In addition, elastic body is not limited to volute spring, also can use disk spring, cone-type spiral laminated spring, leaf spring etc.
In addition, in the above-described embodiment, use and be formed with the volute spring 90 of cranse 90a in advance, but be not limited thereto.That is, because volute spring can easily be out of shape, therefore, in manufacturing process, can after having formed above-mentioned outshot this outshot be wound in bolt b3 making the helical spring end distortion of peddling usually.In this case, have and do not need to change on a large scale design (not needing for the initial cost of preparing new-type mould etc.) and just can become the such advantage of conductor wire with metering disk 10 and bolt b3 electrical connection.
(2) variation 2
In the above-described embodiment, be connected by two bolt b3 between dish supporting member 30 and the response body 41, but be not limited thereto, the radical that is used for the bolt b3 of terminal pad supporting member 30 and response body 41 is arbitrarily.It for example also can be the form that is connected by 1 bolt b3 between dish supporting member 30 and the response body 41.
(3) variation 3
In the above-described embodiment, be connected by two bolt b1 between response body 41 and the framework 60, but be not limited thereto, the radical that is used for the bolt b1 of connection response body 41 and framework 60 is arbitrarily.It for example also can be the form that is connected by 1 bolt b1 between response body 41 and the framework 60.This form can be applicable to that use length in the longitudinal direction is than the situation of the response body of illustrated response body 41 weak points in the above-mentioned embodiment.
(4) variation 4
In above-mentioned present embodiment, be that the situation of cooking the scale of usefulness is illustrated to scale 100, but its purposes is arbitrarily.That is, the present invention can suitably be used for by being easy to the scale that charged member forms.

Claims (8)

1. a scale is characterized in that,
This scale comprises:
Metering disk, it is used for the measured object of mounting;
The dish supporting member, it is configured in the below of above-mentioned metering disk, is used for the above-mentioned metering disk of supporting;
LOAD CELLS, it comprises the metal response body of the below that is configured in above-mentioned dish supporting member, and is used for measuring the load that is applied in above-mentioned metering disk;
Metal the 1st screw member, it is that the head that exposes from above-mentioned dish supporting member is positioned at than position on the lower, the above-mentioned metering disk back side for the member that connects above-mentioned response body and above-mentioned dish supporting member;
Conductive member, the two contacts itself and the back side of above-mentioned metering disk and above-mentioned the 1st screw member;
Shell, it is used for accommodating above-mentioned dish supporting member and above-mentioned LOAD CELLS;
Framework, it is for the metal member that above-mentioned response body is installed on the above-mentioned shell bottom surface, is set to constant reference potential;
Metal the 2nd screw member, it is used for connecting above-mentioned response body and said frame;
Above-mentioned metering disk is electrically connected with said frame by above-mentioned conductive member, above-mentioned the 1st screw member, above-mentioned response body and above-mentioned the 2nd screw member.
2. scale according to claim 1 is characterized in that,
The said reference current potential is set to the such value of electric charge that can remove above-mentioned metering disk.
3. scale according to claim 1 and 2 is characterized in that,
Above-mentioned conductive member is formed by elastic body, and this elastic body is pressed by the back side of above-mentioned metering disk and be compressed on vertical direction.
4. scale according to claim 3 is characterized in that,
Above-mentioned elastic body is formed by volute spring;
Above-mentioned volute spring with its axis and vertical direction roughly consistent mode dispose;
One end of above-mentioned helical spring wire rod has the outshot radially outstanding with respect to this helical spring axis direction, and this outshot is the cranse shape;
Above-mentioned outshot is held fastening between the head and above-mentioned dish supporting member of above-mentioned the 1st screw member.
5. scale according to claim 1 is characterized in that,
This scale also comprises the protection member for the protection of the surface of above-mentioned metering disk;
The surface that covers a side on the surface to above-mentioned metering disk of above-mentioned protection member is provided with concavo-convex.
6. scale according to claim 5 is characterized in that,
Above-mentioned protection member is formed by organic siliconresin.
7. scale according to claim 1 is characterized in that,
This scale comprises the calculating part that calculates the value of above-mentioned load for the dependent variable according to above-mentioned response body;
Accommodate battery in above-mentioned shell, this battery plays the effect of power supply of above-mentioned calculating part and the current potential of an one terminal is configured to the said reference current potential, and this terminal is electrically connected with said frame by lead.
8. scale according to claim 1 is characterized in that,
Above-mentioned metering disk and above-mentioned dish supporting member are formed by resin.
CN 201110272775 2010-09-14 2011-09-14 Scale Active CN102401687B (en)

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Application Number Priority Date Filing Date Title
JP2010205203 2010-09-14
JP2010-205203 2010-09-14
JP2011115682A JP5073845B2 (en) 2010-09-14 2011-05-24 Scale
JP2011-115682 2011-05-24

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Publication Number Publication Date
CN102401687A CN102401687A (en) 2012-04-04
CN102401687B true CN102401687B (en) 2013-07-10

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CN101568810A (en) * 2006-10-24 2009-10-28 卡拉格股份公司 Scales
CN202255575U (en) * 2010-09-14 2012-05-30 株式会社百利达 Scale

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CN101568810A (en) * 2006-10-24 2009-10-28 卡拉格股份公司 Scales
CN202255575U (en) * 2010-09-14 2012-05-30 株式会社百利达 Scale

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