JPH0122890B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement in an indicating scale that displays weight with a pointer, and is mainly concerned with the improvement of an indicator scale that can be used conveniently for repeated measurements of a constant weight, and that can be used to measure not only the weight of the object but also the weight of the object. This invention relates to the improvement of an indicating scale that can display excess or deficiency from a set value.

[Prior art and its problems] For example, using a scale, weigh 200 g in a 34 g container.
When weighing the contents of g, adjust the contents so that the reading on the scale including the container is 234 g.
At this time, if the weight of the container is 100g or 50g,
It is easy to understand that the reading on the scale is 300g or 250g, but in most cases, the weight of the container is not an easy-to-understand weight, and the contents are not necessarily easy to understand, and furthermore, the weight of the container and its contents are not always easy to understand. Even if the sum of It had the disadvantage that it was not easy to read compared to the zero point due to its position.

In other words, conventional indicator scales only display the weight of the object placed on them, and are unable to display the extent to which the weight of the object being measured deviates from a predetermined value. Constant weight measurement has the disadvantage that it cannot always be used with high efficiency.

[Object of the present invention] In order to eliminate this drawback, the present invention, when an object of a set weight is placed on the object, instead of the display member displaying the weight of the object, the display member displays the excess or deficiency of the set value. An important object of the present invention is to provide an indicating scale that can perform repeated constant weight measurements with extremely high efficiency and accuracy without error, and that can be easily used without causing fatigue for the weigher. It is on offer.

[Means for Achieving the Object] In the indicating scale of the present invention, the display member is connected to the load transmission mechanism via the measured value variable member. The measured value variable member has a measured value adjuster for changing the indicated value of the display member, and is detachably connected to the load transmission path between the display member and the load transmission mechanism. The measured value adjuster is connected to the display member when the display member and the transmission mechanism are not connected, and the measured value adjuster further includes a measured value setting section on a portion exposed outside the case.

In the setting section of this measurement value adjuster, when an object having a set weight is measured, the display section indicates the weight that is over or under from the set value.

[Operation] In the indicating scale of the present invention, a measured value variable member is provided between the load transmission mechanism and the display member. This measured value variable member adjusts the connection state between the load transmission mechanism and the display member, and when an object of a predetermined weight is measured, the indicated value of the display member displays zero. That is, the indicating scale of the present invention:
Regardless of the weight of the load being measured, the weight can be adjusted so that the display member always displays a zero value, so that the weight of the object can be adjusted to a constant weight. That is, since the display value of the display member indicates the excess or deficiency of the set weight, the weight of the object to be measured can be adjusted by adjusting the weight so that the excess or deficiency becomes zero.

[Preferred Embodiments] Hereinafter, embodiments of the present invention will be described based on the drawings.

In the indicator scale shown in FIG. 1, the pointer 1, which is the display member 34, points to the zero point when a set weight is weighed. That is, the pointer 1 and the scale plate 3 which are the display members 34
indicates the excess or deficiency from the set weight.

The scale plate 3 is provided with a minus scale in the opposite direction to the direction of rotation of the pointer during measurement, that is, in the minus direction, with reference to the zero point.

The pointer 1 shown in FIGS. 2 and 5 is connected to a pointer shaft 2, which is an output shaft of a load transmission mechanism, via a measured value variable member 32.

The measured value variable member 32 has a magnet 6, and is attached to the pointer shaft 2 via the magnetic attraction force of the magnet 6.

The measured value variable member 32 shown in FIG. 2 includes a connecting member 4, a sliding shaft 5, a magnet 6, and an adsorbent 7. A sliding shaft 5 is fixed in the axial direction at the center of the member 4, and the tip of the sliding shaft 5 is rotatable in a guide hole 33 drilled in the axial direction at the center of the pointer shaft 2, but as much as possible. Furthermore, an annular magnet 6 is fixed on the back surface of the connecting member 4 with the sliding shaft 5 as the center, and this magnet 6 is attached to the pointer shaft 2.
It is attracted to a magnetic metal adsorbent 7 fixed to the tip of the magnetic metal.

Measured value variable member 32 shown in FIGS. 3 to 5
has a sliding shaft 5, a connecting member 4, a nut 9, an adsorbent 7, and a magnet 6, the sliding shaft 5 is fixed at the center at the tip of the pointer shaft 2, and the connecting member 4 A guide hole 8 is bored in the center, and in FIGS. 3 and 5, a nut 9 is inserted into the tip of the pointer shaft 2.
A cylindrical absorber 7 with a collar 10 is fixed in a non-rotating state, and a pointer 1 is attached to the surface of the collar 10 of the absorber 7.
FIG.
A magnet 6 is disposed on the back surface of 0, and this magnet 6 is fixed to a connecting member 4.

Measured value variable member 32 shown in FIGS. 6 and 7
has springs 13 and 14, and presses the pointer 1 against the pointer shaft 2 via the springs 13 and 14.

The measured value variable member 32 shown in FIG.
A tapered shaft 11 having a circular cross section is fixed to the tip of the connecting member 4, and a tapered hole 30 into which the tapered shaft 11 is fitted is fixed to the connecting member 4.
is bored, and a set screw 12 is rotatably inserted through the center of the tapered hole 30 in the axial direction, and the tip of the set screw 12 is screwed into the tip of the tapered shaft 11. A press spring 13 is inserted between the screw head of the set screw 12 and the connecting member 4, and the tapered hole 30 of the connecting member 4 is inserted through the press spring 13.
is pressed against the tapered shaft 11, thereby fixing the connecting member 4 to the pointer shaft 2.

The measured value variable member 32 shown in FIG.
The center of the tension spring 14 is formed into a hollow shape, and a tension spring 14 is built in. One end of the tension spring 14 is connected to the knock pin 15 of the connecting member 4, and the other end is rotatably connected to the end of the pointer shaft 2. By pulling the connecting member 4 with the spring 14, the tapered hole 3 of the connecting member 4 is
0 onto the tapered shaft 11 of the pointer shaft 2.

In the measurement value variable member 32 shown in FIGS. 2, 3, 6, and 7, a separating plate 16 having a through hole is fixed to the center of the surface of the connecting member 4. In the separation plate 16, a pulling rod 18, which is a measured value adjustment tool 31, and a collar 17 larger than the through hole is fixed to the tip thereof is inserted into the center through hole in a non-contact state.

The pulling rod 18 passes through a transparent plate 19 that closes the scale plate 3 and is attached to the transparent plate 19 via an elastic body such as a spring or sponge rubber so that it can move in the axial direction. A setting knob 20, which is a setting section of the measurement value adjuster 31, is fixed to the tip protruding from the side.
The value indicated by the pointer 1 is changed by hooking the separating plate 16 with the collar 17 at the tip of the pointer 8, separating the pointer 1 from the pointer shaft 2, and rotating the setting knob 20.

In this case, as shown in FIG.
If it is tapered to match this, the separation plate 16 will be guided into the pull rod 18 when the pull rod 18 is pulled. In this way, when the separation plate 16 is pulled by the pulling rod 18 against the magnetic attraction force, the separation plate 16 is pulled against the flange by the attraction force of the magnet.
7, the frictional resistance between them increases,
It is possible to eliminate slippage between the setting knob 20 and the pointer 2.

In FIG. 4, a pressing rod 21, which is a measured value adjusting tool 31, is attached to a transparent plate 19 that closes the scale plate 3 so as to be freely pushed out in the axial direction, and this pressing rod 21 corresponds to the base of the pointer 1. When not pressed,
Although it is in a non-contact state with the base of the pointer 1, when pressed, it contacts and is connected to the base of the pointer 1, and by pressing this, the indicated value of the pointer 1 is changed.

In this case, if an annular magnet 22 is fixed to the surface pressed by the connecting member 4 at the tip of the pressing rod 21, the indicated value of the pointer 1 can be changed more easily.

FIG. 5 shows a measurement value adjuster 31 attached to the base of the pointer 1.
A setting shaft 23 is fixed, and this setting shaft 23 passes through the transparent plate 19 without contact, and this setting shaft 23 is covered with a rubber knob 24 fixed to the transparent plate 19. And rubber knob 24
When you pinch this, it deforms and becomes the setting axis 23.
The pointer can be rotated by pinching it with your hand, but when it is not pinched, it does not come into contact with the setting shaft 23.

In addition, the scale of the present application can be adjusted by setting the pointer to the zero point in the normal state when not weighing.
Needless to say, it can be used just like a regular scale.

8 to 10 show that at the zero point of the scale plate 3,
A detecting means 25 for the pointer 1 is provided, and this detecting means 25 outputs an output signal when the pointer reaches the zero point.

As shown in FIGS. 8 to 10, the pointer detection means 25 is rotatably attached to the case so that the mounting position can be changed up and down along the pointer 1 indicating the zero point, and has a knob at the upper end. A nut portion 28 of a threaded rod 27 to which 26 is fixed is screwed in, and a guide 29 fixed parallel to this threaded rod 27 is slidably inserted through the threaded rod 27.
The width of the pointer 1 becomes wider toward the base, and by lowering the pointer 1 in FIG.
By increasing the tolerance for the set value, that is, by making rough measurements possible, and by raising the pointer 1, more accurate measurements can be made.

The pointer detection means includes, for example, a photo sensor,
Magnetic sensors, capacitive sensors, etc. can be used. Further, the detection means includes a timer and is configured to output an output signal only when the pointer is at the detection position for a predetermined period of time.

If the output signal of the detection means is integrated by an integrating circuit, it is possible to detect the indicated value of the pointer in a vibrating state. Therefore, the stop position can be detected before the pointer stops.

[Effect] As described above, in the indicating scale according to the present invention, the display member is connected to the load transmission mechanism via the measurement value variable member, and the measurement value adjuster of the measurement value variable member can also be used to adjust the display member to the pointer. Can be connected by shifting the axis,
The zero point of the pointer is configured to display zero when a set weight object is weighed.In other words, the display member is configured to display the excess or deficiency of the measured object from the set value.For example, when weighing a 350g container, When sorting fish by 5 kg, first set the guideline to minus 5350.
After adjusting the weight to 5 kg, place a container on it and add or subtract fish so that the pointer reaches the zero point, and you will be able to weigh 5 kg of fish. In other words, when measuring any weight, the amount of fish is increased or decreased so that the pointer reaches the zero point when the set weight is reached, so there is no need to memorize the weight to be measured, and the display on the display member. There is no need to adjust the value to a specific value, and whether the pointer is on the plus or minus side makes it obvious whether the amount is too much or too little, making adjusting the weight of the object to be weighed very easy, quick, and intuitive. It can be done. For this reason, it goes without saying that weighing efficiency can be extremely high, and no matter how complicated the measured weight is, it can be accurately weighed without errors, and there is no need to memorize the weighed weight each time, and the display material can be Since constant weight measurement can be performed by increasing or decreasing the amount of the object to be weighed so as to display zero, it has the great effect of greatly reducing user fatigue and allowing anyone to use it simply and easily.

[Brief explanation of drawings]

Fig. 1 is a front view of a scale plate of an indicator scale showing an embodiment of the present invention, Figs. 2 to 7 are sectional views of an indicator portion showing an embodiment of the invention, and Figs. 8 to 10 are FIG. 7 is a front view and a cross-sectional view showing a state in which the detection member of the pointer is attached. 1...Pointer, 2...Pointer shaft, 3...Scale plate, 4
...Connecting member, 5...Sliding shaft, 6...Magnet, 7...
... Adsorption body, 8 ... Guide hole, 9 ... Nut, 10
... Tsuba, 11 ... Tapered shaft, 12 ... Set screw,
13... Pressure spring, 14... Tension spring, 15... Knock pin, 16... Separation plate, 17... Tsuba, 18...
...Pull rod, 19...Transparent plate, 20...Setting knob, 21...Press rod, 22...Magnet, 23...
...Setting axis, 24...Rubber knob, 25...Detection means, 26...Knob, 27...Threaded rod, 28...
Nut portion, 29...Guide, 30...Tapered hole, 31...Measured value adjuster, 32...Measured value variable member, 33...Guide hole, 34...Display member.

Claims (1)

[Claims] 1. A display member that displays weight is connected to a load transmission mechanism via a measured value variable member, and the measured value variable member is connected to a load transmission path between the display member and the load transmission mechanism. A measured value adjustment tool is provided that is detachably connected and changes the indicated value of the display member, and the measured value adjustment tool is connected to the display member when the display member and the transmission mechanism are not connected, Furthermore, the measurement value adjustment tool is equipped with a measurement value setting section on the exposed part outside the case, and when the weight of the object is measured, the display section shows whether the weight is over or under the set weight. An indicating scale configured to indicate. 2 The measured value variable member 32 has a magnet 6, the display member 34 has a pointer 1, and the pointer 1 is connected via the magnet 6 to a pointer shaft 2 which is an output shaft of a load transmission mechanism. Indicating scales listed in Scope 1. 3. The indicating scale according to claim 2, wherein the magnet 6 is annular and is fixed concentrically with the pointer shaft 2. 4 The display member 34 has the pointer 1, the measured value variable member 32 is fixed to the base of the pointer 1, the measured value variable member 32 has the tapered shaft 11, the connecting member 4, and the spring 14, and the tapered shaft Reference numeral 11 has a tapered shape and is fixed to the tip of the pointer shaft 2 which is the output shaft of the load transmission mechanism, the connecting member 4 has a tapered hole 30, and the tapered shaft 11 connects to the tapered hole 3 of the connecting member
0, and the tapered hole 3 of the connecting member 4
0 is pressed against the tapered shaft 11 via a spring 14, a measured value adjuster 31 is connected to the connecting member 4, and the measured value adjuster 31 is pulled to separate the taper hole 30 from the tapered shaft 11. The indicating scale according to claim 1, wherein the indicated value of the pointer 1 is adjusted by. 5 The measured value variable member 32 has a separating plate 16, a through hole is bored in the center of the separating plate 16, this separating plate 16 is fixed to the base of the pointer 1, and the measured value adjusting tool 3
1 has a flange 1 larger than the through hole of the separation plate 16 at the tip.
7 is fixed, and this pulling rod 18 is inserted into the through hole of the separating plate 16 in a non-contact state. 19, transparent plate 1
A setting knob 20, which is a setting section, is fixed to the tip of the transparent plate 19 that protrudes outward. A patent claim in which the pointer 1 is separated from the pointer shaft 2 by pulling it taut and hooking the separating plate 16 with the flange 17 at the tip of the pulling rod, and in this state, the setting knob 20 is rotated to change the indicated value of the pointer 1. Indicating scales listed in item 1. 6. The measured value adjustment tool 31 has a pressing rod 21,
This measurement value adjustment tool is a transparent plate 19 that closes the scale plate 3.
A pressing rod 21 is attached so as to be freely pushed out in the axial direction, and this pressing rod 21 faces the base of the pointer 1 and is in a non-contact state with the base of the pointer when it is not pressed. The indicating scale according to claim 1, wherein the indicator sometimes contacts the base of the pointer 1 and changes the indicated value of the pointer 1 while in contact. 7 The measurement value adjuster 31 has a setting shaft 23 fixed to the base of the pointer 1, and this setting shaft 23 is connected to the transparent plate 1.
9. The indicating scale according to claim 1, which passes through the point 9 in a non-contact manner. 8 The measurement value variable member 32 has a sliding shaft 5 and a connecting member 4 to which the pointer 1 is connected, the sliding shaft 5 is fixed to the connecting member 4, and the sliding shaft 5 is connected to the pointer shaft 2. The indicating scale according to claim 1, which is rotatably inserted into a guide hole bored in the axial direction at the tip.