JP5045693B2 - Measuring holder and electronic balance using the same - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an electronic balance and a measurement holder used in an electronic balance, and particularly used when measuring a sheet-like sample suspended on a vertically long hook body having a hook portion at the upper end with an electronic balance. The present invention relates to a measurement holder and an electronic balance using the same. The electronic balance mentioned here refers to the weight of the object to be measured, including electronic balances equipped with an electromagnetic force balancing mechanism, electronic balances such as load cell type, tuning fork type, and capacitance type (also called electronic scales). This includes all weighing devices that detect and measure as electrical signals. These are collectively referred to as an electronic balance.

  Samples with a sticky coating formed on the surface of a sheet-like substrate, such as various coated papers, adhesive tapes, functional films, etc. Understanding the condition is necessary for high quality and efficient production of products and is widely implemented.

When measuring a sheet-like sample with a sticky coating on such a surface using an electronic balance, if the sample is placed directly on the weighing pan, the sticky coating will adhere to the weighing pan. Accurate measurement cannot be performed.
Therefore, conventionally, as shown in FIG. 5, the sample C is suspended at the lower end of the hook body 1 that is vertically long and serves as a carrying tool, and the upper end hooking portion 1 a of the hook body 1 is exposed on the lower surface of the electronic balance 10. The weighing unit 11 was suspended and weighed under the floor. In addition, as an electronic balance which hangs a sample in this way and performs underfloor weighing, there exists a thing of patent document 1, for example.

JP 05-322632 A

  However, when the upper end of the hook body in which the sample is suspended is hooked on the electronic balance and suspended, the sample suspended below vibrates like a pendulum and completely stops, for example, about 1 minute. Took time. Even if it is a minute vibration, the measurement value becomes unstable and a measurement error occurs, so in order to measure accurately, it is necessary to confirm that the sample has completely stopped shaking and read the measurement value. There is a problem that it takes a long time to completely stand still and requires a long time for measurement, and it is difficult to visually confirm the stillness, and a measurement error due to measurement before stationary is likely to occur. In addition, the suspended sample easily oscillates even with a minute impact applied to the electronic balance, causing a measurement error.

  The present invention has been proposed in order to solve the conventional problems as described above, and effectively prevents vibration of a suspended sample to reduce measurement errors and shorten measurement time. The main object of the present invention is to provide a measuring holder with a simple structure.

  In order to achieve the above object, the present invention takes the following technical means. That is, the measurement holder according to the present invention is a measurement holder used for weighing a sample suspended by a vertically long hook body having a hook portion at the upper end with an electronic balance, The abutment body is composed of a support column erected on the weighing pan of the electronic balance, an engagement portion formed on the upper portion of the support column, and an abutment body disposed at a position below the engagement portion and supported by the support column. When the hook body that suspends the sample is hooked on the engaging portion, the hook body is inclined and the load on the sample is reduced. It is configured to be formed so as to be supported at two points, that is, the engaging part and the tip of the contact body.

  As described above, the measuring holder according to the present invention is configured such that when the hook body in which the sample is suspended is hooked on the engaging portion, the hook body is inclined and the load of the sample is measured at two points of the engaging portion and the abutting body tip portion. The moment generated by the weight of the sample acts on the two supporting points, and the pendulum swing of the hook body with the upper end engaging portion as a fulcrum is instantaneously stopped. As a result, it is possible to effectively suppress the vibration of the suspended sample to reduce the measurement error and to significantly shorten the measurement time.

(Means and effects for solving other problems)
In the above invention, it is preferable that the engaging portion and the contact body are formed on a single plate member fixed to the support column.
Thereby, it is possible to reduce the cost by reducing the number of components, and the holder can be easily assembled.

Moreover, in the said invention, it is good to set it as the structure by which the rod-shaped 2nd contact body which contacts so that a sample may be pressed a little is provided in the side surface of the lower part of the suspended sample.
Thereby, the shake of the sample can be further suppressed.
Moreover, the electronic balance of the present invention made from another viewpoint measures the sheet-like sample by fixing the above-described measuring holder to the weighing pan.

It is a perspective view which shows the 1st Example of the holder for a measurement concerning this invention, Comprising: The state which suspended the sample which should be measured is shown. The side view which carried out the cross section of a part of the said holder for a measurement. The side view similar to FIG. 2 which shows another Example of the holder for a measurement concerning this invention. The perspective view which shows another Example of the holder for a measurement concerning this invention. The partial cross section figure which shows a conventional means.

Hereinafter, a measuring holder according to the present invention will be described based on an embodiment shown in the drawings.
FIG. 1 is a perspective view showing a first embodiment of a measuring holder according to the present invention, showing a state in which a sample coated with an adhesive coating is suspended, and FIG. It is the side view which cut a part.

  In the figure, reference numeral A denotes an electronic balance, and reference numeral 1 denotes a bar-like hook body that has a hook portion 1a at the upper end and has a sample C to be measured suspended on a hook 1b at the lower end and is long in the vertical direction. This hook body also serves as a tool for carrying the sample.

A measuring holder B according to the present invention is attached to the weighing pan 2 of the electronic balance A. The holder B includes a horizontal substrate 3 fixed on the weighing pan 2, a support column 4 erected perpendicularly to the substrate 3, and an engagement portion 5 formed on the top of the support column 4. It is comprised from the contact body 6 arrange | positioned in the downward position of the part 5, and supported by the support | pillar 4. As shown in FIG. And the front-end | tip 6a of the said contact body 6 is formed so that it may become a position away from the perpendicular line X from the engaging part 5, Preferably it will be in the position distant from the support | pillar 4 like FIG.1 and FIG.2. Thus, when the upper end hooking portion 1a of the hook body 1 from which the sample C is suspended is hooked on the engaging portion 5, the hook body 1 is inclined and the load of the sample C is brought into contact with the engaging portion 5 It is formed so as to be supported at two points of the tip 6a. In this embodiment, the engaging portion 5 and the contact body 6 are formed on a single plate member 7 that is formed by bending a single plate material made of a hard thick plate into a substantially Z shape and fixing it to a support column. That is, the engaging portion 5 is formed by a hole penetrating up and down at the front end portion of the upper horizontal portion 7 a of the upper plate member 7, and the contact body 6 is formed by the lower horizontal portion 7 b of the plate member 7. Has been. Further, a recessed portion 6b (see FIG. 1) is provided at the front end portion 6a of the contact body 6 so that the hook body 1 can be fitted and stably supported.
Reference numeral 8 in the figure denotes a transparent windshield case provided on the upper part of the electronic balance A so as to cover the periphery of the holder portion.

In the measuring holder configured as described above, as shown in FIGS. 1 and 2, when the hook body 1 in which the sample C is suspended is hooked on the engaging portion, the hook body 1 is inclined, The moment generated by its own weight acts on the two support points of the engaging portion 5 and the abutting body front end portion 6b to quickly stop the pendulum swing of the hook body with the engaging portion at the upper end as a fulcrum. As a result, the vibration of the suspended sample can be effectively suppressed and the measurement time can be significantly shortened.
According to the experiments by the inventors, in the underfloor weighing by the conventional suspension method, the time to complete rest was 60 seconds on the average, but the means of the present invention was able to reduce the average to 10 seconds.

  In the present invention, as shown in FIG. 3, it is preferable to provide a rod-shaped second contact body 9 that comes into contact with the lower portion of the suspended sample C so as to push the sample C up slightly. The second contact body 9 is preferably detachably attached to the column 4 as shown in the figure, but may be detachably attached to the horizontal substrate 3. Thereby, the shake of the sample can be further suppressed. In this case, the tip of the contact body 9 is in direct contact with the surface of the sample C, which is effective when the coating film surface is formed on one side surface.

  Further, in the present invention, as shown in FIG. 4, the contact body 6 can be formed as a separate member separated from the plate member on which the engaging portion 5 is formed, and attached to the support column 4. In this case, the contact body 6 is preferably attached to the support column 4 so that the vertical position can be adjusted by the long hole 6c and the attachment screw 6d. Thereby, according to the length of the hook body 1, the space | interval of the engaging part 5 and the contact body front-end | tip part 6a can be adjusted, and it can use conveniently.

  The representative embodiments of the present invention have been described above. However, the present invention is not necessarily limited to the above-described embodiment structures, and can be appropriately modified within the scope of achieving the object and without departing from the scope of the claims. It is possible to change.

  The present invention can be applied as a measurement holder used when a sample suspended by a hook body that is long in the vertical direction is measured with an electronic balance.

A Electronic balance B Measuring holder C Sample 1 Hook body 2 Weighing pan 4 Strut 5 Engaging section 6 Abutting body 6a Abutting body tip 7 Plate member

Claims (4)

A measurement holder used for weighing a sample suspended by a hook body having a hook portion at the upper and lower ends with an electronic balance using an electronic balance,
A support column standing on the weighing pan of the electronic balance,
An engaging portion formed on the upper portion of the column;
It is composed of an abutting body that is disposed at a position below the engaging portion and supported by a support column,
The tip of the abutting body is formed so as to be at a position away from the vertical line from the engaging portion, so that when the hook body with the sample suspended is hooked on the engaging portion, the hook body is inclined. A measuring holder formed so that a load of a sample is supported at two points, that is, an engaging part and a contact body tip part.   The measurement holder according to claim 1, wherein the engagement portion and the contact body are formed on a single plate member fixed to the support column.   The measurement holder according to claim 1 or 2, wherein a second abutting body is provided on a side surface of a lower portion of the suspended sample so as to come into contact with the sample so as to slightly press the sample. An electronic balance, wherein a sheet-like sample is measured by fixing the measuring holder according to any one of claims 1 to 3 to a weighing pan.

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