JP4617785B2 - Weight scale - Google Patents

Description

  The present invention relates to a scale for measuring the weight of a person.

  Conventionally, this type of weight scale is provided with a weight measurement mechanism on the main body base, and the weight is measured by placing a measurement table on which a person rides on the weight measurement mechanism of the main body base (for example, see Patent Document 1). . There is also a scale that prevents a measurement error caused by a displacement of a load position applied to the weight measurement mechanism when the person gets on the end of the measurement table and is distorted and deformed (see, for example, Patent Document 2). .

  FIG. 3 shows a conventional weight scale described in Patent Document 1, and FIG. 4 shows a weight scale for preventing measurement errors described in Patent Document 2.

  As shown in FIG. 3, the main body base 1 is provided with a weight measuring mechanism. Specifically, four force point edges provided at the four corners on the lower surface of the measurement table on which a person rides are provided by four weight measuring mechanisms. A load is applied by contacting the force point receiving portion 3 provided on each arm 2, and the reduced and combined load is transmitted to the weight measuring unit 4 according to the lever and link principle of the arm 2 to measure the body weight. it can. The weight measuring unit 4 includes a mechanical measuring unit using a spring or the like, and an electric measuring unit using a displacement sensor such as a strain gauge. The accuracy of the weight measurement is determined by the accuracy of the weight measuring unit 4.

  On the other hand, there is a problem that the measurement accuracy is lowered due to deformation distortion of the measurement table. This is because when the person gets on the end of the measuring table, the measuring table is distorted and deformed, and the contact point between the force point edge and the force point receiving portion 3, that is, the load position is deviated from the original position. It is. If a person gets on a predetermined position on the measuring table, such a decrease in measurement accuracy does not occur. However, even if a suggestion (for example, showing the position of the foot) is given to get on the predetermined position. A scale is a device used from infants to the elderly, and not all people use it as suggested, so a basic measure is required.

  Here, in the first place, this measurement accuracy is reduced because the weight scale reduces the weight of the person based on the lever principle of the arm 2 and measures the load at the weight measuring unit. This is because the measurement error of the load value is caused, and as a principle countermeasure method, it is only necessary to prevent the position of the power point from being shifted even if the measurement table is deformed. As this method, there is securing of a contact point position between a force point edge and a force point receiving portion described in Patent Document 2.

As shown in FIG. 4, the intermediate member 5 is suspended from the force point receiving portion 3 of the arm 2, and the force point edges on the lower surface of the measuring table are applied to both ends of the intermediate member 5. Since the intermediate member 5 hangs from the force point receiving portion 3, there is a degree of freedom of movement like a pendulum. Even if the position of the force point edge is displaced due to deformation of the measuring table, the buffering action of the position of the intermediate member 5 ( Due to the degree of freedom of movement), the force point receiving portion 3 is loaded at a predetermined position and no measurement error occurs.
Japanese Utility Model Publication No. 56-112636 (FIG. 1) JP-A-8-86686 (FIG. 6)

  However, in the conventional configuration, the displacement of the power point is reduced, and the measurement accuracy is improved. However, when a person gets on the outside of the four intermediate members, the measurement table is still distorted upward and deformed, so As a result, there is a problem that the position cannot be completely prevented.

  In addition, since the positional deviation is absorbed by the intermediate member that moves like a pendulum, there has been a problem that the measurement table originally swings. As long as it is a measurement platform for people to ride on, it is difficult to get on when the measurement platform swings, and the posture is not stable even after riding, which may lead to measurement errors.

  An object of the present invention is to solve the above-mentioned conventional problems, and to prevent a decrease in measurement accuracy caused by a displacement to a power point due to deformation of a measurement table, and to provide a weight scale with a stable measurement table. .

In order to solve the above-described conventional problems, the weight scale of the present invention includes a measuring table on which a person rides on a main body base having a side surface continuously connected to an upper side from a side end of a bottom portion provided with a weight measuring mechanism. The measurement table includes a lower measurement table in which a side surface covering the upper end of the side surface of the main body base from the outer side is connected to the lower side from the side edge of the upper surface, and the upper surface of the lower measurement table is covered from above. A side surface that covers the side surface of the lower measurement table from the outside is continuously provided from the side edge of the upper surface to the lower side, and a cover piece that covers the lower end portion of the side surface of the lower measurement table from the lower side from the lower end of the side surface is the inner side And an upper measurement table connected to each other in a double structure, and is provided with load transmission means for transmitting the weight of a person on the upper measurement table to the lower measurement table.

As a result, the weight (load) of the person on the measuring table is once received by the upper measuring table and transmitted to the weight measuring function through the lower measuring table by the load transmitting means. Even if the deformation is caused, the measurement accuracy is not lowered (measurement error) due to the displacement of the power point. Furthermore, the measurement table is composed of a lower measurement table in which a side surface that covers the upper end of the side surface of the main body base from the outside is connected to the lower side from the upper edge of the upper surface, and the upper surface of the lower measurement table from the upper side. A side surface that covers the side surface of the lower measurement table from the outer side is provided continuously from the side edge of the upper surface to be covered, and a cover piece that covers the lower end portion of the side surface of the lower measurement table from the lower side from the lower end of the side surface. Due to the double structure in which the upper measurement table connected to the inside is overlapped , foreign matter is caught between the upper measurement table and the lower measurement table, and the movement is restricted, causing measurement errors. And the measurement accuracy can be maintained.

The weight scale of the present invention can prevent a measurement error from occurring anywhere on the measurement table , and the measurement table is placed from the side end of the upper surface to the lower side with the upper end of the side surface of the main body base outward. A lower measurement table in which side surfaces to be covered are continuously provided, and a side surface that covers the side surfaces of the lower measurement table from the outside from the side edge of the upper surface that covers the upper surface of the lower measurement table from above are continuously provided. And a double structure in which a cover piece covering a lower end portion of the side surface of the lower measurement table from below is overlapped with an upper measurement table connected to the inner side from the lower end of the side surface. Foreign matter is sandwiched between the measurement table and the lower measurement table, the movement is restricted, causing a measurement error, and the measurement accuracy can be maintained.

A first aspect of the present invention is on the side edge of the bottom provided with a weighing mechanism of the body base side to the upper side is formed by continuously provided, comprising a measuring table a person riding, the measuring stand, down from the side edge of the upper surface A lower measurement table in which a side surface that covers the upper end of the side surface of the main body base from the outside is continuously provided on the side, and the lower side from the side edge of the upper surface that covers the upper surface of the lower measurement table from above An upper measurement table in which a side surface that covers the side surface of the measurement table from the outside is continuously provided and a cover piece that covers the lower end portion of the side surface of the lower measurement table from the lower side is continuously provided from the lower side to the inside. It is equipped with a load transmission means that conveys the weight of the person on the upper measurement table to the lower measurement table, and the weight (load) of the person on the measurement table is once on the upper side. The measuring table is received and transmitted to the weight measuring function through the lower measuring table by the load transmission means. Ri can be the upper measuring stand person has got even cause distortion deformation, so that lowering of the measurement accuracy due to positional displacement of the force point (measurement error) does not occur. Furthermore, the measurement table is composed of a lower measurement table in which a side surface that covers the upper end of the side surface of the main body base from the outer side is connected to the lower side from the upper edge of the upper surface, and the upper surface of the lower measurement table is viewed from above. A side surface that covers the side surface of the lower measurement table from the outer side is provided continuously from the side edge of the upper surface to be covered, and a cover piece that covers the lower end portion of the side surface of the lower measurement table from the lower side from the lower end of the side surface. Due to the double structure in which the upper measurement table connected to the inside is overlapped , foreign matter is caught between the upper measurement table and the lower measurement table, and the movement is restricted, causing measurement errors. And the measurement accuracy can be maintained.

  In the second invention, in particular, the load transmission portion of the first invention is made of metal, and the load transmission portion that is a contact portion between the upper measurement table and the lower measurement table is made of a strong metal. By this, it becomes a stable measuring table, and it can ride on a measuring table in peace at the time of weight measurement.

In the third invention, in particular, the upper measurement table and the lower measurement table of the first or second invention are connected by a spring, and without restricting the movement of the upper measurement table and the lower measurement table, Moreover, the upper measurement table and the lower measurement table become a stable measurement table that does not tilt or separate, so that the user can get on the measurement table with confidence during weight measurement.

In the fourth aspect of the invention, in particular, the weight scales of the first to third aspects are provided with display means for displaying the weight measurement result on the upper measurement table, so that the weight scale with good visibility can be obtained.

In the fifth invention, the display means of the first to third inventions is provided on the lower measurement table so that it can be seen through the upper measurement table. It is possible to improve the durability of the part, and further, it is possible to prevent stains on the display and improve the design.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiment.

(Embodiment 1)
FIG. 1 shows a block diagram of a weight scale according to the first embodiment of the present invention, and FIG. 2 shows an external view of the weight scale according to the first embodiment of the present invention. In FIG. 1, a load is applied by contacting the force point receiving portions 12 provided on the arms 14 of the weight measuring mechanism, respectively, and the scale is reduced and synthesized by the lever and link principle of the arm 14 using the fulcrum receiving portion 11 as a fulcrum. The load is transmitted to the weight measuring unit 15, and the body weight can be measured. In addition, the measurement table on which the human body rides is composed of a lower measurement table 21 and an upper measurement table 20, and the lower measurement table 21 has a force point blade 16 for applying a load to the force point receiving portion of the arm 14. is doing. The upper measurement table has a load transmission unit 22 for transmitting a load to the lower measurement table. The lower measurement table 21 and the upper measurement table 20 are integrated by being attracted to each other by a connection spring 23.

  In FIG. 2, a display unit 32 for displaying a weight measurement value is provided on the lower measurement table 21, and the upper measurement table 20 is configured with a display unit window 33 in order to make the display unit 32 visible. .

  The operation and action of the weight scale configured as described above will be described below. First, the measurement table is divided into an upper measurement table 20 and a lower measurement table 21, and a load applied to the upper measurement table 20 is transmitted to the lower measurement table 21 via the load transmission unit 22, so that the human body can move to the upper measurement table 20. Even if the upper measurement table 20 is distorted, the load is always applied to the position of the load transmitting portion receiver 24 of the lower measurement table 22, and the power point blade 16 is applied to the force point blade receiver 12. The force does not always change and does not affect the measurement accuracy.

  Moreover, since the load transmission part 22 is comprised with the metal, it will not be crushed even if a human body rides on a measuring stand, and it will be excellent also in durability.

  In addition, by forming the upper measurement table 20 so as to enclose the upper surface and the side surface of the lower measurement table 21, foreign matter is sandwiched between the upper measurement table 20 and the lower measurement table 21, which causes measurement errors. To prevent measurement and maintain measurement accuracy.

  In addition, as a method of connecting the measurement table to the upper measurement table 20 and the lower measurement table 21, the movement of the upper measurement table 20 and the lower measurement table 21 can be fixed by attracting them with the connection spring 23. In addition, the upper measurement table 20 and the lower measurement table 21 become a stable measurement table that does not tilt or separate, and the positional relationship between the load transmission unit 23 and the load transmission unit receiver 24 is prevented from being shifted.

  Moreover, it can be set as a weight scale with favorable visibility by providing the display part 32 which displays a weight measurement result in the upper measurement stand 20. FIG.

  In addition, by providing the display unit 32 on the lower measurement table 21 so that the display unit 32 can be seen through the upper measurement table 20, even if the human body is wet after bathing, the display unit 32 can be directly watered. Disappears. In addition, the human body does not ride directly on the display unit 32, the durability of the display unit 32 can be improved, and the display can be prevented from being stained and the design can be improved.

  As described above, in this embodiment, the measurement table is divided into the upper measurement table 20 and the lower measurement table 21, and the load applied to the upper measurement table 20 is transmitted to the lower measurement table 21 via the load transmission unit 22. By doing so, even if the human body rides on both ends of the upper measurement table 20 and the upper measurement table 20 is distorted, the force applied to the force point receiving part 11 of the lower measurement table 21 by the lower measurement table 21 is the same as when the normal measurement table 20 rides. As a result, measurement errors due to the mounting position of the human body can be reduced.

  In the present embodiment, the load transmitting portion receiver 24 is made of metal, whereby durability can be improved and measurement accuracy can be stabilized for a long time.

  In the present embodiment, the load transmission unit 22 can be integrated with the upper measurement table 20 and the load transmission unit receiver 24 can be molded with the lower measurement table 21 and molded at low cost.

  Further, in the present embodiment, the measurement accuracy can be further stabilized by providing the load transmitting portion 22 directly above the force point blade 16.

  Further, in the present embodiment, the same effect can be obtained even if a plurality of load transmission portions 22 are provided at arbitrary positions on the upper measurement table 20 without being positioned directly above the fulcrum blade 16.

  Further, in the present embodiment, the upper measurement table 20 and the lower measurement table 21 are separated, so that the lower measurement table 21 is shared, and a scale with a completely different design is released only by a new design of the upper measurement table 20. And can provide new models at low cost.

  Moreover, the display part window 33 can also be removed by shape | molding the upper measurement stand 20 with transparent resin, and permeate | transmitting the design of the lower measurement stand 21. FIG.

  As described above, the weight scale according to the present invention can be applied to uses such as a pet weight scale because it is possible to prevent a measurement error from occurring anywhere on the measurement table.

Sectional drawing which shows the structure of the weight scale in Embodiment 1 of this invention. Overview perspective view of weight scale in embodiment 2 of the present invention The perspective view which shows the structure of the conventional weight scale The perspective view which shows the structure which prevents a measurement error in the conventional weight scale.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main body base 11 Support point blade receiving part 12 Force point blade receiving part 13 Action point 14 Arm 15 Load measurement part 16 Force point blade 17 Support point blade 20 Lower measurement stand 21 Upper measurement stand 22 Load transmission part 23 Connection spring 24 Load transmission part receiver 32 Display unit 33 Display unit window

Claims (5)

Provided with a measuring table on which a person rides on a main body base having a side surface continuously provided on the upper side from the side edge of the bottom portion provided with the weight measuring mechanism, and the measuring table is provided on the lower side of the main body base from the side edge of the upper surface. A lower measurement table in which a side surface covering the upper end of the side surface from the outside is continuously provided, and a side surface of the lower measurement table is outward from a side edge of the upper surface covering the upper surface of the lower measurement table from above. A side surface covering from the side is continuously provided, and an upper measurement table in which a cover piece covering the lower end portion of the side surface of the lower measurement table from the lower side is connected to the inner side from the lower end of the side surface is overlapped and doubled. A weight scale having a load transmission means formed in a structure and transmitting the weight of a person on the upper measurement table to the lower measurement table.   The weight scale according to claim 1, wherein a load transmitting portion from the upper measuring table to the lower measuring table by the load transmitting means is made of metal.   The weight scale according to claim 1 or 2, wherein the upper measurement table and the lower measurement table are connected by a spring.   The weight scale according to any one of claims 1 to 3, wherein display means for displaying a weight measurement result is provided on the upper measurement table.   The weight scale according to any one of claims 1 to 3, wherein display means for displaying a weight measurement result is provided on the lower measurement table and is visible through the upper measurement table.

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