JPH0343566B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a weighing device that can be used in all weighing fields, such as large scales for commercial and industrial use, weighing platforms in the logistics industry, vehicle scales, and weighing floors in warehouses. It is something.

[Background of the invention]

Conventionally, large-scale weighing devices such as those described above have been custom-made and designed and manufactured with their rated load, dimensions, etc., in accordance with the user's requests. However, if the weighing device is designed and manufactured as a custom-made product in accordance with the user's requirements, it has the disadvantage of not being mass-producible and being expensive.Also, as the area of the weighing platform becomes larger, the structural members need to be thicker. However, there were disadvantages in that the height of the weighing device, that is, the height from the floor to the weighing platform, was high, the weight was large, and transportation, installation, maintenance, etc. were inconvenient. Furthermore, since it was a custom-made product, it took time to design and manufacture, making it impossible to shorten the delivery time.

The present invention has been made in view of the above-mentioned points, and eliminates the above-mentioned drawbacks, reduces the time required for design and manufacture, is suitable for mass production, can be manufactured at low cost, is easy to transport, install and maintain, and is a measuring device. An object of the present invention is to provide a measuring device that can keep the height dimension of the weighing device low.

[Summary of the invention]

In order to achieve the above object, the present invention provides a measuring device,
A weighing unit comprising a load cell, a base part that is coupled to a fixed end of the load cell and can be freely installed on a floor, a case that encloses the load cell, and a focus part that is coupled to a free end of the load cell; The weighing unit is equipped with a stay that connects between the weighing units and a weighing base plate disposed on the stay, and a stay mounting portion is provided at the important point of the measuring unit to detachably attach the stay between the important points of adjacent measuring units. The structure allows the area of the weighing platform to be increased by adding more weighing units and stays.

[Effect]

By configuring the weighing device as described above, by adding a weighing unit and a stay, it is possible to provide a weighing device having a weighing platform of any size very easily and at low cost. Furthermore, since the weighing unit can be mass-produced with only the length of the stay being custom-made, costs can be sufficiently reduced and delivery times can be improved. Furthermore, if the weighing unit, stay, and weighing table plate are mass-produced as standard products, delivery time can be shortened, and transportation, installation, and maintenance can be facilitated. Further, even if the area of the weighing platform is increased, the height of the weighing device can be kept low without increasing it.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a diagram showing the structure of a measuring unit used in a measuring device according to the present invention, in which FIG. 1A is a plan view and FIG. 1B is a sectional view.

The weighing unit includes a load cell 10, a base portion 20 that is connected to a fixed end of the load cell 10 and can be freely installed on the floor, a case 30 that encloses the load cell 10, and a focus portion 40 that is connected to the free end of the load cell. The configuration includes the following.

A load cell 10 is a strain-generating body 1 having upper and lower beams.
It has a structure in which four strain gauges 12 are attached to one strain generating part. The base section 20 has legs 22 on a substrate 21.
One end (fixed end) of the strain body 11 of the load cell 10 is connected to the substrate 2 by a support member 23.
Fixed to 1.

The case 30 has an inverted cup shape, and a through hole 31 is formed in the upper center portion thereof, through which a support member 43 of a focus portion 40 (to be described later) passes, and the lower end has a shape and size to fit into the outer peripheral portion of the substrate 21 of the base portion 20. It is.

The emphasis part 40 is provided with four pin-shaped stay attachment members 41 into which stays to be described later fit into the upper part of the board 42 , and the emphasis part 40 is attached to the free space of the strain body 11 of the load cell 10 at the lower center of the board 42 . A support member 43 is provided at the end for support. In addition,
Reference numeral 5 denotes a bellows that prevents obstacles such as dirt from entering the case 30.

The weighing unit 1 having the above structure has a structure that allows it to be freely placed on the floor using the legs 22 of the board 21 as supporting parts, and is used in the weighing section of a platform scale equipped with weighing tables of various sizes, but all of them have the same shape. Therefore, mass production is possible.

FIG. 2 is a diagram showing the structure of a measuring device according to the present invention, in which FIG. 2A is a plan view and FIG. 2B is a sectional side view. The weighing device 2 has a plurality of weighing units 1 disposed on a floor 3, and a stay 4 is disposed between the weighing units 1 to connect their important points 40 to each other. Near both ends of the stay 4,
A hole is formed on the base plate 42 of the weighing unit 1 through which the stay mounting member 41 passes. Connect with stay 4. Note that the holes formed near both ends of the stay 4 may be holes of a size that are simply attached to the stay attachment members 41 at the ends.

Weighing unit 1 and weighing unit 1 as shown above.
The measuring device 2 according to the present invention is completed by placing the weighing table plate 6 above the stay 4 arranged between the important points 40 of the weighing device 2.

FIG. 3 is a diagram showing another example of the configuration of the measuring device according to the present invention. As shown in the figure, in the weighing unit 1 used in this embodiment, eight stay attachment members 41 are provided on the base plate 42 of the important point 40 at equal intervals on the same circumference. There are two types of stays 4 that connect the weighing units 1 and the important points 40 of the weighing units 1: those arranged vertically and horizontally, and those arranged diagonally. A hole is provided in the board 42 through which the stay attachment member 41 provided above passes, and the stay attachment member 41 is fitted into the hole to connect the important point 40 between the adjacent weighing units 1. Link.

FIG. 4 is a diagram showing another example of the configuration of the measuring device according to the present invention. Measuring unit 1 used in this example
is the same important point 4 as the weighing unit 1 shown in FIG.
Eight stay attachment members 41 are provided on the same circumference at equal intervals on the zero substrate 42. The measuring units 1 are arranged in a staggered manner, and the stays 4 are arranged between them.

Even with the measuring device shown in Figs. 3 and 4, the stay 4
A weighing base plate 6 is arranged on the upper part of the scale.

Although the weighing device having the structure shown in FIG. 2 can form a rectangular platform scale with the simplest arrangement of the stays 4, it is likely to be deformed into a diamond shape. In the measuring device shown in FIG. 3, a long stay 4 that can be arranged diagonally is added to compensate for the drawbacks of FIG. 2 and also for reinforcement. The measuring device of FIG. 4 is simpler than that of FIG. 3 in that it can be constructed with stays 4 of the same size, but they cannot be made rectangular. Furthermore, as shown in FIG. 6b, if two mounting holes and two pins or screws are used to connect one end of the stay 4 and the board 42, the structure of the stay 4 as shown in FIG. 2 can also be deformed into a diamond shape. It can be held down.

FIG. 5 is a diagram showing another example of the configuration of the important point 40 of the weighing unit 1 used in the weighing device according to the present invention. As shown in the figure, the base plate 42 of the important point 40 has a stay attachment member 4 made of a pin or screw.
Eight mounting holes 46 into which the mounting holes 5 are inserted or screwed are formed at equal intervals on the sides of the square shape, and one in the center.
By configuring the base plate 42 as described above, the base plate 42 is positioned as much as possible inside the stay 4 as shown in FIG. Furthermore, the weighing unit 1 located at the corner is arranged so that the board 42 is located as close to the inside of the stay 4 as possible, as shown in FIG. 5b.

Figure 6 shows a weighing base plate 6 at the bottom of the weighing unit 1.
This is a diagram showing a weighing device having a structure in which a slope 7 is fixed for smoothing the landing of objects to be weighed. A slope fixing member 8 is arranged at the bottom of the weighing unit 1 and the slope 7. The base plate 21 of the weighing unit 1 and the slope 7 are fixed with screws or pins (not shown).

FIG. 7 is a diagram showing another example of the stay mounting structure for attaching the stay 4 to the important point 40 of the weighing unit 1, in which FIG. 7a is a plan view, and FIG. 7b is a line A--
It is a sectional arrow view on A. As shown in the figure, a cross-shaped groove 48 into which the end of the stay 4 fits is formed in the base plate 42 of the important point 40, and a convex portion 47 is formed in a predetermined portion of the groove 48. On the other hand, a recess 4a into which the projection 47 fits is formed near the end of the stay 4. By inserting the stay 4 into the groove 48 of the substrate 42 so that the concave portion 4a fits into the convex portion 47, the stay 4 is inserted into the important point 4 of the weighing unit 1.
It can be stably placed at 0. Further, since the groove 48 is formed in the substrate 42 and the stay 4 is inserted into the groove 48, the height of the measuring unit 1 can be reduced.

FIG. 8 is a diagram showing another example of the configuration of the measuring device according to the present invention, in which FIG. 8A is a plan view and FIG. 8B is a sectional side view. In this embodiment, as shown in the figure, the board 42 of the focal point 40 of the weighing unit 1 is square, and stay mounting members 45 made of pins or screws are fitted to the board 42 parallel to each side and spaced at equal intervals. A mounting hole 46 into which it is inserted or screwed is formed.

By configuring the board 42 of the important point 40 as described above, when the weighing unit 1 is placed in a corner, the stay 4 is placed outside the board 42 and the stay mounting member 45 is inserted into the mounting hole 46 on the outside. Fixed by being inserted or screwed together. The structure of the stay 4 is such that the thickness of the center portion is larger than that of the end portions in order to strengthen the rigidity of the center portion. Further, an auxiliary stay 9 is arranged between the center portions of the stays 4 arranged laterally. In this example as well, a weighing table plate 6 is placed above the stay 4.

FIG. 9 is a diagram showing another example of the configuration of the weighing table plate of the weighing device according to the present invention, in which FIG. 9a is a plan view and FIG. 9b is a sectional side view. As shown, the weighing platform is
Corner weighing table plate 6- placed at the corner part
1. Peripheral weighing table plate 6-2 arranged in the peripheral area;
Skirt weighing board 6- placed in the skirt part
3. A center weighing platform 6-4 is arranged in the center.

As shown above, attach the weighing board to the corner weighing board 6-
1. If the peripheral weighing table 6-2, the skirt weighing table 6-3, and the central weighing table 6-4 are prepared separately, by combining these, a weighing table of any area can be provided. , and it becomes possible to easily construct a measuring device with a skirt-like falling portion.

By configuring the weighing device as shown in the above embodiment, the area of the calculation table can be freely expanded by adding the weighing unit 1, the stay 4, and the weighing table plate 6. For example, it is easy to use the entire floor of a warehouse as a weighing platform, so it is possible to develop applications from simple platform scales to logistics systems and plant fields.

In addition, in the above embodiment, the stay 4 and the weighing table plate 6
are combined separately, but the stay 4 and weighing table plate 6
may be integrally molded.

In addition, in the case of FIGS. 2 and 8, the area around the weighing table plate 6 is shaped like a skirt with the measuring table plate 6 falling down, but it may also be a flat, uncut plate.
To add the weighing unit 1, stay 4, and weighing table plate 6 as shown in Fig. 2, use the uncut weighing table plate 6.
It is more convenient to combine them.

In the above embodiment, a double beam type load cell was used as the load cell 10 used in the weighing unit 1, but the type of load cell is not limited to this, and may be any known type of load cell such as a shear type or a column type. Moreover, the load detection method of the load cell is not limited to a strain gauge type, a capacitance type load cell, a vibration type load cell, or the like.

Further, the mounting structure of the stay 4 of the important point 40 is not limited to the above embodiment, and the point is that the important point 4 of the adjacent measuring unit 1 and the measuring unit 1
There is no particular limitation on the structure as long as the stay 4 that connects 0 is detachably attached.

〔Effect of the invention〕

As explained above, according to the present invention, the following excellent effects can be obtained.

By adding a weighing unit and a stay, a weighing device having a weighing platform of any size can be provided extremely easily and at low cost.

Furthermore, if the weighing unit and stay are mass-produced as standard products, delivery time can be shortened, and transportation, installation, and maintenance can be facilitated.

Furthermore, by mass producing the weighing unit even if only the length of the stay is custom made, the cost can be sufficiently reduced and the delivery time can be shortened.

Moreover, even if the area of the weighing platform is increased, a measuring device with a low height of the weighing platform can be obtained without increasing the height dimension of the weighing device.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the structure of a measuring unit used in a measuring device according to the present invention, in which figure a is a plan view, figure b is a sectional view, and FIG. FIG. 3 is a diagram showing another configuration example of the measuring device according to the present invention, and FIG. 4 is a diagram showing another configuration of the measuring device according to the present invention. FIG. 5 is a diagram showing an example of the configuration of the important part of the weighing unit used in the weighing device according to the present invention,
Fig. 6 shows a measuring device in which a slope is fixed to the lower part of the measuring unit, and Fig. 7 shows another example of fixing the stay to the important point of the measuring unit 1. Figure b is a cross-sectional view taken along the line A-A in figure a, and Figure 8 is a diagram showing another example of the configuration of the measuring device according to the present invention, where figure a is a plan view and figure b is a cross-sectional view. The side view and FIG. 9 are diagrams showing other configuration examples of the weighing table plate of the weighing device according to the present invention, where FIG. 9A is a plan view and FIG. 9B is a cross-sectional side view. In the figure, 1...Measuring unit, 2...Measuring device,
3...floor, 4...stay, 5...bellows, 6...
... Weighing table plate, 7 ... Slope, 8 ... Slope fixing member, 10 ... Load cell, 20 ... Base part, 30 ... Case, 40 ... Important point.

Claims (1)

[Scope of Claims] 1. A load cell, a base portion that is connected to a fixed end of the load cell and can be freely installed on the floor, a case that encloses the load cell, and a focus portion that is connected to the free end of the load cell. It comprises a weighing unit, a stay that connects the weighing units, and a weighing table plate disposed on the stay, and a stay mounting portion is provided at an important point of the weighing unit to removably attach the stay; A measuring device characterized in that at least three measuring units are arranged, and the stay is attached between the stay attachment portions of adjacent measuring units.