JPH0124588Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a weighing plate in which a level indicating the horizontal state of the scale can be seen through.

[Prior art]

When weighing an object with a scale, if the scale is not in a horizontal state, the weight of the object cannot be accurately measured. For this reason, scales required a level to indicate that the scale was in a horizontal position. Since this level adjusts the level of the scale by adjusting a plurality of adjusting legs attached to the bottom of the scale, it was necessary to install it in a position where it can be easily seen by the operator.

For this reason, as shown in FIG. 4, a mounting member 10 has been made to protrude from the bottom plate on the outer periphery of the scale body, and a level 2 has been mounted on the upper part of this mounting member 10.

However, since only the mounting member 10 of the level 2 protrudes from the scale whose outer periphery is approximately rectangular in plan,
The scale was hit by other objects during transportation, or caught on clothing during weighing operations, causing the scale to be placed in a different position. Furthermore, because of the single protrusion, the box in which the scale is packaged has to be made larger, which also causes an increase in cost.

Therefore, as shown in FIG. 5, a scale was created in which a see-through window for the level 2 was provided in the operating part 17 using a part of the operating part 17, and the protruding part of the level 2 was eliminated.

In addition, Utility Model Publication No. 49-14464 discloses that a level 2 is arranged inside a case 3 of a scale, a mirror 7 is provided in an inclined manner on the upper surface of the level 2, and a peephole is provided on the side of the case 3. 8 discloses that the level of the scale is adjusted while looking at a level reflected in a mirror from outside the case 3.

[Problems solved by ideas]

However, in recent years, scales are often used in conjunction with printers and ECRs that issue labels and receipts, so the viewing window on the side of the scale is blocked, making it difficult to see the level reflected in the mirror. I can't. Also, if you do not leave enough space between the scale and the printer, etc. to fit the worker's head, even if it is not blocked, it will be difficult to move the printer, etc. placed next to the scale when adjusting the level of the scale. This required a large footprint for the scale. Furthermore, the level had to be viewed from the side of the scale, making it difficult to adjust the adjusting legs of the scale while looking at the level. Moreover, not only is the cost high because a mirror is required, but it is also necessary to consider protection against damage to the mirror during transportation. Furthermore, if the viewing window of the level is provided in the operating section, the operating section must be made larger, resulting in an increase in the size of the scale.

This idea was devised to solve the above-mentioned problems, and aims to provide a weighing pan for a small scale that allows for easy horizontal adjustment of the scale without moving the scale or other objects. purpose.

[Means to solve the problem]

In order to solve the above problems, this invention
A weighing mechanism section 5 equipped with a weighing mechanism section 5, a base 4 to which the weighing mechanism section 5 is attached, a plurality of adjustment legs 9 that support the base 4, and a level 2 disposed near the bottom surface of the weighing pan 1; A mounting plate 3 for supporting the level 2 is provided, and the mounting plate 3 is fixed to the base 4, and the level 2 is attached to the upper surface of the weighing pan 1 at a position corresponding to the level 2. A see-through window 8 that can be seen through is provided.

[Effect]

Since the weighing pan is configured as described above, the level placed at the bottom of the weighing pan can be seen from above the weighing pan through the see-through window opened in the weighing pan. Therefore, when leveling the scale, the operator can easily level the scale using the adjusting legs while looking at the level from above the weighing pan without moving objects around the scale.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a perspective view showing the basic structure of a scale using a load cell in a weighing mechanism, and FIG. 2 is a cross-sectional view of an electronic scale using a load cell.

As shown in FIG. 1, the weighing mechanism section 5 of the weighing device A
A load cell 5a is obtained by attaching a strain gauge 52 to a rectangular strain-generating body 51 having vertically parallel horizontal beams and pasting a strain gauge 52 at a predetermined position on the horizontal beam. One end of this load cell 5a is defined as a fixed part 5b, and the other end is defined as a focused part 5c. The fulcrum member 7 is the load cell 5
A is fixedly fixed to the base 4, and is an L-shaped member on the side consisting of a vertical side 7a and a horizontal side 7b. On the vertical side 7a of this fulcrum member 7 is the load cell 5a.
Attach the fixing part 5b. Then, the horizontal side 7b of this fulcrum member 7 is fixed to the upper surface of the base 4. or,
The emphasis member 6 is used to attach the scale plate 1 to the emphasis portion 5c of the load cell 5a, and is an L-shaped member consisting of a vertical side 6b and a horizontal side 6c, similar to the fulcrum member 7.

The weighing plate 1 is attached to the horizontal side 6c of this emphasis member 6, and the vertical side 6b is connected to the emphasis part 5 of the load cell 5a.
Attach to c. Adjustable legs 9 are located at the four corners of the bottom of the base 4.
be installed rotatably. By rotating this adjusting leg 9, the height of the adjusting leg 9 is adjusted,
This is to ensure that the weighing device A is horizontal.

The level device 2 that indicates the level of the weighing device A is a cylindrical transparent glass container containing a liquid containing air bubbles.
The upper end of this container is sealed with a spherical glass that protrudes inward. Then, when the bubble is located at the center of the spherical glass, this level device 2
indicates that it is horizontal.

The mounting plate 3 to which the level device 2 is attached has a U-shape on its side with vertically parallel planes.
The upper surface 3a of this mounting plate 3 has a hole for mounting the level 2, and the lower surface 3b has holes for fixing the mounting plate 3 to the base 4 with screws. After fixing the lower surface 3b of the mounting plate 3 to the base 4 with screws, the level 2 attached to the hole in the upper surface 3c is fixed with an adhesive. This level 2 is attached in advance to the weighing plate 1.
A spirit level is placed on a metal plate, etc., and the adjustment leg 9 is used to adjust the level so that the spirit level indicates the level. When the level indicates the level, the level 2 is fixed to the mounting plate 3 with the level indicating the level. Therefore, the weighing mechanism and the weighing device become horizontal. The weighing pan 1 is a rectangular plate made of resin, stainless steel, or aluminum. This weighing pan 1 is provided with a hole for a see-through window 8 through which the level 2 can be seen from above the weighing pan 1 at a position corresponding to the level 2 attached to the base 4 via the mounting plate 3. Therefore, while looking at the level 2 at the bottom of the weighing pan 1 from above the weighing pan 1, the operator rotates the adjustment legs 9 attached to the four corners of the base 4 so that the air bubbles on the level 2 are spherical. The level of the scale device A can be adjusted so that it is centered on the glass. In addition, since the level 2 does not protrude from the base 4, there is no chance that clothes will get caught on the protrusion of the level 2 and cause the scale to shift.

Note that the adjustable legs 9 only need to be at least one fixed leg and two adjustable legs.

FIG. 2 is a cross-sectional view of an electronic scale according to a second embodiment of the present invention. The electronic scale, which is the weighing device A, is
The measuring mechanism section 5 of the first embodiment is covered with an upper case 13 and a lower case 14.

In order to protect the load cell 5a from the impact load applied to the weighing pan, the load cell 5a of this embodiment has the following features:
The load cell 5a is fixed to the support plate 12 via a buffer spring 71 at the fixed portion 5b. Buffer spring 71
This is a plate spring having a generally U-shaped side surface and consisting of two horizontal surfaces 71b that are vertically parallel and a vertical surface 71a that connects these two surfaces 71b. This buffer spring 71 is arranged so that the vertical surface 71a is pressed by the fulcrum member 7, and the buffer spring 71 and the fulcrum member 7 are connected to the load cell 5.
It is jointly fastened to the fixed part 5b of a. Then, the ends of the upper and lower horizontal surfaces 71b of the buffer spring 71 are attached to support plates 12, which will be described later, to fix the load cell 5a.

An emphasis member 6 similar to that of the first embodiment is attached to the emphasis portion 5c of the load cell 5a. A pan support member 6a is fixed to the upper surface of the horizontal side 6c of this emphasis member 6, and the weighing pan 1 is attached to this pan support member 6a.

The support plate 12 is a frame having a planar rectangular shape, and supports 11 are arranged at each corner. This support column 11 is longer than the height of the support plate 12, and is longer than the support plate 12.
2, it is fixed to the support plate 12 so as to protrude vertically. A buffer spring 71 attached to the load cell 5a is fixed to one side of the support plate 12.
In addition, the level 2 is attached to a horizontal side 31b of a mounting plate 31 having a substantially L-shaped side surface and consisting of a vertical side 31a and a horizontal side 31b.
Fixed to the top. Then, the vertical side 31a of the mounting plate 31 is attached to one side of the support plate 12 to fix the level 2.

The upper case 13 and the lower case 14 cover the measuring mechanism section 5 from above and below. On the upper surface of the upper case 13, there are a hole 13a through which the plate support member 6a passes through, approximately at the center of the upper surface, and four holes 13c for fixing the upper case 13 at positions corresponding to the respective pillars 11. , a hole 13 for making the upper end of the level 2 protrude from the upper surface of the upper case 13
Open b. Therefore, the upper case 13 is
The pan support member 6a and the level 2 are fixed to the upper part of each of the pillars 11 in a state in which they protrude from the upper surface of the upper case 13.

The lower case 14 has holes 14a formed at positions corresponding to the respective pillars 11 so as to fit inside the upper case 13, and is fixed to the lower part of each of the pillars 11.

Further, a female thread is formed on the lower end surface of each of the pillars 11. A screw shaft 9a protruding from the upper end surface of the adjustment leg 9 is rotatably attached to this female thread. Therefore, by rotating this adjustment leg 9,
The horizontal level of the scale device A can be adjusted.

A hole is made in the scale plate 1 fixed to the plate support member 6a at a position corresponding to the level 2 to form a see-through window 8. Therefore, the level 2 can be seen from above the weighing pan 1 through the see-through window 8 of the weighing pan 1. Therefore, the operator can adjust the level of the scale while checking the level of the level 2 by rotating the adjusting leg 9.

Note that the mounting plate 3 is not limited to a sheet metal, and may be an aluminum casting, a resin molded product, or the like. A modification of the see-through window 8 is shown in FIG.

In Fig. 3A, a recess 81 is provided in the weighing pan 1, a see-through window 8 slightly smaller than the recess 81 is provided in the recess 81, and a transparent body 15 made of glass or resin is glued or press-fitted into the recess 81. It is. B is
The see-through window 8 and the transparent body 15 are screwed together, and C is a resin transparent body 15 having elasticity with a protrusion 16 as shown in the figure, which is attached to the see-through window 8 with an elastic It was inserted using the .

In these embodiments, the hole of the see-through window 8 is inserted into the transparent body 1.
5, water droplets or juice on the weighing plate 1 fall onto the upper surface of the level 2, making the level 2 difficult to see and preventing the upper case 13 from becoming dirty.

Furthermore, D is a transparent body 15 with a convex portion corresponding to the plate thickness of the weighing plate 1 attached to the see-through window 8 from the back side of the weighing plate 1. The top surface of 1 is easy to clean.

The see-through window 8' shown in FIG. A transparent object can also be weighed using a weighing plate 1 in a cut-out transparent window like this.
It is also optional to attach it along the sides of the

Further, in each of the embodiments described above, the transparent window 8 has been described as a round hole, but the shape is not limited to this.

Further, in the second embodiment, the level 2 was arranged so as to protrude from the upper surface of the upper case 13, but the level 2 is housed inside the upper case 13 and the hole provided in the upper case 13 is made of a transparent material. May be covered. In this case, it is desirable that the level 2 be brought close to the transparent body attached to the upper case 13.

Note that when the level 2 is placed inside the scale case as described above, it is optional to use lighting to make the level 2 easier to see.

Further, in the first and second embodiments, the measuring mechanism is explained as a load cell, but it is not limited to this, and may be a spring type, a tuning fork type, a hose balance type, or any other type.

[Effect of idea]

As explained above, according to the present invention, the level placed at the bottom of the weighing pan can be seen from above the weighing pan through the see-through window opened in the weighing pan. Even when installed, the level of the scale can be easily adjusted using the adjusting legs while looking at the level from above the scale plate. Therefore, even if the scale is installed in a narrow place with limited installation space, such as on top of a drawer case or in a workshop where various instruments are placed, accurate measurements can always be performed because the scale can be easily leveled.

In addition, a level is installed at the bottom of the weighing pan, which is not used except during weighing operations, and the level can be seen through a see-through window in the weighing pan, which reduces the number of operations required as scales become more multifunctional. By preventing the operation section in which the keys are installed from becoming complicated, the operation section can be simplified and operability improved, and the scale can be made smaller.

Further, since a mirror that is easily damaged is not used, there is no need to provide excessive protection from vibrations and shocks during transportation, and the cost of the scale can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the basic structure of a weighing device equipped with the weighing pan of the present invention, Fig. 2 is a cross-sectional side view of the weighing pan of the present invention when used in an electronic scale, and Fig. 3 is a perspective view showing the basic structure of a weighing device equipped with the weighing pan of the present invention. Figures 3A to 3D are cross-sectional views of the perspective window, Figures 3E and F are perspective views of the perspective window, and Figures 4 and 5 are views of a conventional weighing pan equipped with a level. FIG. 2 is a perspective view of an electronic scale. In the figure, A... Weighing device, 1... Weighing plate, 2... Level, 3... Mounting plate, 4... Base, 5... Measuring mechanism section, 8... Transparent window, 9... Adjustment. leg.

Claims (1)

[Scope of utility model registration request] In a weighing pan 1 on which an object to be weighed is placed in a weighing device A for weighing an object to be weighed, a weighing mechanism section 5 equipped with this weighing mechanism section 1, a base 4 on which this weighing mechanism section 5 is attached, and this base. 4, a plurality of adjustable legs 9 that support the
It is equipped with a level 2 placed near the bottom surface of the weighing pan 1 and a mounting plate 3 that supports the level 2. A weighing plate characterized in that a see-through window 8 through which the level 2 can be seen is provided on the upper surface of the weighing plate 1 at a certain position.