JP2009025201A - Electronic balance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic balance capable of easily changing only a design of an enclosure or only a performance of the balance achieved by functional components, by separating the enclosure which constitutes a design and a fundamental base which has the functional components for achieving the performance of the balance. <P>SOLUTION: The electronic balance comprises the fundamental base 29, enclosures 10, 30, functional parts 20 for achieving the performance of the balance, a load receiver 40 for placing a measuring object, and horizontal level adjusting legs 50 for adjusting the horizontality. The enclosures 10, 30 have first and second enclosures 10, 30. The functional components 20, the load receiver 30, and horizontal level adjusting legs 50 are fixed to the fundamental base 29, and the fundamental base 29 and the functional components 20 are enclosed by the first and second enclosures 10, 30. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an electronic balance, and more particularly, to an electronic balance (sometimes referred to as an electronic balance) including a housing that forms an appearance.

In an electronic balance, a rectangular reference base in a plan view, a rectangular cylindrical (box-shaped) housing that is attached so as to cover the upper side of the reference base, and for placing an object to be measured Measuring plate (load receiver) and four horizontal adjustment legs attached to the four corners of the reference base from below. Inside the reference base and the housing, a load detection sensor, a sensor output calculation module, an information image It is known to contain functional parts such as a display module having a display unit for displaying, a power supply module, and a horizontal adjuster for measuring whether or not it is horizontal.
As an example of such an electronic balance, a load detection sensor, a sensor output calculation module, a power supply module, a horizontal adjuster, a load receiver and a horizontal adjustment leg are fixed to a reference base, and a display module is fixed to a housing. Some are corded to the reference base. That is, by aligning the housing and the display module in advance and integrating them so that the upper surface of the housing and the display portion of the display module are in the same plane, the housing having the display module becomes the reference. Attached to the base from above.
As another example of an electronic balance, a switch board, a display module, and the like are also fixed to a housing (for example, see Patent Document 1). Accordingly, the switch board and the display module can be easily connected to the reference base without performing a cord connection or the like.
JP-A-9-68459

However, in the electronic balance as described above, the reference base also plays the role of the lower housing. Therefore, when changing the design of the external appearance, not only the housing attached from above, but also the change of the reference base I had to do it. Furthermore, if the reference base is changed, the arrangement of functional components mounted on the reference base must be changed. That is, since the design and the performance of the scale are not separated, it was not possible to easily change only the design.
Therefore, the present invention separates the housing constituting the design from the reference base on which the functional components for achieving the performance of the balance are separated, so that only the design of the housing and the performance of the balance using the functional components are obtained. It is an object of the present invention to provide an electronic balance that can be easily changed.

An electronic balance of the present invention made to solve the above problems includes a reference base, a housing, a functional component for achieving the performance of the balance, a load receiver for placing an object to be measured, and a horizontal An electronic balance including a horizontal adjustment leg for adjusting the balance, wherein the housing includes a first housing and a second housing, and the reference base includes the functional component, a load receiver, and a horizontal housing. The adjustment leg is fixed, and the reference base and the functional component are wrapped by the first casing and the second casing.

According to the electronic balance of the present invention, the functional component for achieving the performance of the balance is mounted on the reference base. On the other hand, no functional parts are mounted on the casing. Then, the reference base on which the functional component is mounted is wrapped by, for example, the first casing and the second casing from the left and right and the top and bottom.

As described above, according to the electronic balance of the present invention, only the design or the functional component can be obtained by separating the casing constituting the design and the reference base on which the functional component for achieving the performance of the balance is mounted. It is possible to easily change only the performance of the balance. For example, when it is desired to change the design, the reference base on which the functional parts are mounted is used as it is, and the first casing and the second casing are changed.

(Means and effects for solving other problems)
In the above invention, the functional component measures whether or not it is level with a load detection sensor, a sensor output calculation module, a display module having a display unit for displaying an information image, and a power supply module. It is also possible to use a horizontal adjuster.
In the above invention, the reference base and the functional component may be encased in the first casing from above and encased in the second casing from below.
Furthermore, in the above invention, the first housing has a through hole, and the load receiver is disposed above the first housing and is fixed to the reference base through the through hole. The two housings have four through-holes, and the horizontal adjustment leg is composed of four leg parts, and each leg part is arranged below the second housing and serves as a reference through the through-holes. You may make it fix to a base.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments described below, and it goes without saying that various aspects are included without departing from the spirit of the present invention.

FIG. 1 is an exploded perspective view of an electronic balance according to an embodiment of the present invention, and FIG. 2 is a perspective view of a reference base on which the functional parts shown in FIG. 1 are mounted and a leveling leg is attached. is there.
The electronic balance includes a reference base 20 on which the functional component 20 is mounted, a first housing 10 mounted from above the reference base 29, a second housing 30 mounted from below the reference base 29, and a device under test. A measurement pan (load receiver) 40 for placing an object and four horizontal adjustment legs 50 for horizontal adjustment are provided.

The reference base 29 has a rectangular plate shape in plan view, and on its upper surface, a load detection sensor 25, a sensor output calculation module 27, a display module 23 having a display unit for displaying an information image, and a power supply module 26 and a level adjuster 24 for measuring whether or not it is horizontal. In addition, screw receiving portions 30a for screwing the horizontal adjustment legs 50 are formed at the four corners of the rectangle.
The load detection sensor 25 has a cylindrical part 25a for attaching the measurement dish 40 to the center, and detects a load signal of the object to be measured placed on the measurement dish 40 attached to the cylindrical part 25a.
The sensor output calculation module 27 receives the load signal detected by the load detection sensor 25 and calculates the load of the object to be measured, and outputs the calculation result to the display module 23.
The display module 23 displays an information image on the display unit based on the calculation result by the sensor output calculation module 27.
The level adjuster 24 measures whether or not it is horizontal, and water and air are enclosed in a hemispherical container. Therefore, if it is horizontal, air will come to the center in a plan view, and if it is not horizontal, air will not come to the center in a plan view.

The measurement dish 40 has a disk shape having a connecting shaft (not shown) extending downward from the center of the lower surface, and the object to be measured is placed on the upper surface.
Each horizontal adjustment leg 50 has a disk shape having a screw shaft extending upward from the center of the upper surface, and is placed on a floor or the like. The horizontal adjustment leg 50 is attached by being screwed to the screw receiving portion 30a. At this time, the height is adjusted by the degree of screwing of the horizontal adjustment leg 50 to the screw receiving portion 30a. That is, the level is adjusted by the degree of screwing of the four horizontal adjustment legs 50 to the respective screw receiving portions 30a.

The casing is composed of a rectangular casing (box-shaped) first casing 10 having an upper surface and a rectangular cylindrical (box-shaped) second casing 30 having a lower surface, and a reference on which the functional component 20 is mounted. The base 29 is wrapped by the first housing 10 from above and is assembled by screwing or the like so as to be wrapped by the second housing 30 from below.
Three through holes 11, 12, 13 are formed on the upper surface of the first housing 10. The through hole 11 is a rectangular hole in which the display unit of the display module 23 is inserted, and the through hole 12 is a circular hole in which the horizontal adjuster 24 is inserted. Thereby, when the electronic balance is assembled, the upper surface of the first housing 10 and the display unit of the display module 23 and the upper surface of the horizontal adjuster 24 are designed to be on the same plane.
Furthermore, the through-hole 13 is a circular hole provided substantially at the center, and the connecting shaft of the measurement dish 40 is inserted therein. Accordingly, the measurement dish 40 is disposed above the first housing 10 and is fixed to the cylindrical portion 25 a of the load detection sensor 25 of the reference base 29.

Through holes 30 a are respectively formed at the four corners of the lower surface of the second housing 30. Each through hole 30a is a circular hole into which the screw shaft of the horizontal adjustment leg 50 is inserted. Accordingly, the horizontal adjustment leg 50 is disposed below the second housing 30 and is fixed to the screw receiving portion 30 a of the reference base 29.
Note that a switch substrate or the like may be mounted on the reference base 29, and at this time, a through hole for a switch or a cut-out portion is formed in the first housing 10.

As described above, according to the electronic balance, the first casing 10 and the second casing 30 constituting the design are separated from the reference base 29 on which the functional component 20 for achieving the performance of the balance is mounted. Thus, it is possible to easily change only the design of the first housing 10 and the second housing 30 or only the performance of the scale by the functional component 20. For example, when it is desired to change the design, the reference base 29 on which the functional component 20 is mounted is used as it is, and the first casing 10 and the second casing 30 are replaced with a cylindrical first casing having an upper surface. And it can change to the cylindrical 2nd housing | casing which has a lower surface.

(Other embodiments)
(1) In the electronic balance described above, the reference base 29 on which the functional component 20 is mounted is encased in the first casing 10 from above, and is encased in the second casing 30 from below. The reference base 29 may be configured to be wrapped in the first housing from the right and wrapped in the second housing from the left.

  The electronic balance of the present invention is used, for example, as one capable of individually performing design development of a design and design development of the performance of the balance.

It is a disassembled perspective view of the electronic balance which is one Embodiment of this invention. It is a perspective view of the reference | standard base in which the functional component shown in FIG. 1 was mounted, and the horizontal adjustment leg was attached.

Explanation of symbols

10 First housing 20 Functional parts 29 Reference base 30 Second housing 40 Measuring pan
50 Leveling feet

Claims (4)

A reference base,
A housing,
Functional parts to achieve the performance of the balance;
A load receiver for placing the object to be measured;
An electronic balance comprising a leveling leg for leveling,
The housing has a first housing and a second housing,
The functional base, load receiver and leveling leg are fixed to the reference base,
The electronic balance according to claim 1, wherein the reference base and the functional component are wrapped in a first casing and a second casing. The functional component includes a load detection sensor, a sensor output calculation module, a display module having a display unit for displaying an information image, a power supply module, and a horizontal adjuster for measuring whether or not the level is horizontal. The electronic balance according to claim 1, wherein the electronic balance is provided. 3. The electronic balance according to claim 1, wherein the reference base and the functional component are wrapped in a first casing from above and are wrapped in a second casing from below. The first housing has a through hole,
The load receiver is disposed above the first housing and is fixed to the reference base via a through hole,
The second housing has four through holes,
2. The horizontal adjustment leg includes four leg parts, and each leg part is disposed below the second housing and is fixed to the reference base through a through hole. The electronic balance of any one of -3.