JP6718577B2 - Weight scale and weight measurement method that can measure each seated chair - Google Patents

Description

The present invention relates to a weight scale capable of measuring a seated chair, particularly a wheelchair, without going down from the chair, and a weight measurement method using the weight scale.

Hospitals and nursing homes often measure the weight of patients and care recipients. Some patients and care recipients are not only able to stand and walk by themselves, but also many are bedridden and move with the help of caregivers. In such cases, various correspondence examples can be found in the prior art documents.
The first is to measure the bedridden one without moving it, that is, to measure it with the bed on which the patient lies. In such an example, the bed itself is originally equipped with a weight measuring device. Since it does not exist, it is necessary to move either the weight scale that can measure the bed or the bed.
The second is bed-riding or not bed-riding, but requires assistance to move, and the assistant puts it on a wheelchair and moves it to a place with a weight scale. There are things such as measuring with a wheelchair, and changing the patient or cared person to a chair with a scale.
The situation will be described below with reference to the prior art document.
In Patent Document 1, the bed itself is originally equipped with a load sensor. This has to be prepared when the bed is manufactured, and it is difficult to modify the already manufactured bed, so that the application is limited. In Patent Document 2, the same is true, but in this example, the patient is transported by a wheelchair, placed on a bed, and laid down for measurement. It is troublesome to transfer patients, and it seems useless to create all the usual beds in this way. Patent Document 3 is a load measurement scale, which is mounted and measured for each wheelchair or each leg (caster) of a bed. It is not easy to place a wheelchair on a pedestal with a built-in scale, or because the bed is particularly large so that the load measuring scale can be submerged under the foot. In addition, it seems that it takes a lot of time to remove it after the measurement. In Patent Document 3, since the load measurement scale is laid under the four feet of the bed, there is an advantage that it can be made small here, but in Patent Document 4, the weight measurement is performed under the bed and lifted together with the bed. Since it is a device, it needs to be close to the bed and sturdy enough to support the loads of both the bed and the human body, which is too large and heavy and expensive.
It is not realistic to bring such a thing into a hospital room with a bed, or to move the bed to a place with a weight measuring device, which is an excessive load for the measurement of weight at most, because it is an excessive load.
Patent Document 5 is a weight scale that is mounted on a wheelchair. Since it is easy to move the entire wheelchair, there is no problem in movement, and in the above example, it is the most realistic. However, you need to go up a small step to load each wheelchair. The scale itself is not suitable for large movements because the car is small. If you make a car bigger, the steps will be bigger and you will not be able to put a wheelchair on it.
In Patent Document 6, the wheelchair itself has a scale. Compared to the wheelchair itself, the structure with the scale is expensive in itself. It is impractical to have all wheelchairs with scales. Then, if some of them are equipped with a weight scale, the patient is carried in a normal wheelchair without a weight scale, and is transferred to a wheelchair with a weight scale to measure the weight scale. It would be useless to replace it, but it seems that the wheelchair does not need to be equipped with a scale.
Patent Document 7 seems to be appropriate from such a viewpoint. The chair itself has a scale. It is necessary to replace the patient.
In addition, in Patent Document 8, there is a stretcher on which a patient is placed, and a scale is attached below the stretcher. This is considered to be the same as in Patent Document 2. Patent Document 9 is an apparatus for suspending a patient with a suspending tool such as a hammock, and the weight of the patient can be measured if the suspending unit has a weight scale. Hanging and weighing the patient is not easy to place on the patient, requires robustness and size of the device commensurate with the weight of the patient, and is also expensive.

Patent No. 4200955 Utility model registration No. 3063677 JP, 2005-300368, A Utility model registration No. 3126295 Japanese Patent Laid-Open No. 10-232161 JP 2012-47638 JP 2005-278901 A Japanese Patent Laid-Open No. 2009-270902 JP 2001-487A

As described above, the weight scale according to the present invention measures the weight of a patient or a cared person, but the drawbacks shown in the examples of the prior documents, in particular, for each bed, the measurement is performed by the device. Considering the fact that it becomes large in size, mobility is not good, and it is not a good idea to transfer patients, the weight measurement should be made corresponding to the fact that moving in a wheelchair is usually realistic. (EN) Provided is a scale that can be measured while sitting on a chair without removing the inconvenience of mounting it on a scale and replacing it with another chair equipped with a scale.

The weight scale of the present invention has a pedestal, a weight measurement means, and a weight measurement means vertical movement means for moving the weight measurement means up and down with respect to the pedestal, and the width of the pedestal and the weight measurement means falls between the legs of the chair. The width is set so that the pedestal and the weight measuring means are moved between the legs of the chair, and the weight measuring means is moved up and down to move the weight measuring means up and down and the weight measuring means is brought into close contact with the chair. It is possible to measure the weight of each body.
Hereinafter, description will be given according to the claims.

The invention according to claim 1 is a weight scale capable of measuring each seated chair,
The pedestal, a weight measuring means, and a weight measuring means up-and-down moving means are provided, and the weight measuring means moves up and down with respect to the weight scale base and the weight of the measurement object with respect to the weight scale base. A weight measuring unit for measuring, wherein the weight measuring means vertical movement means moves the weight measuring means vertically with respect to the pedestal via the weight scale base.
Move the pedestal and the weight measuring means between the legs of the chair, or cover the pedestal and the weight measuring means with the chair, and move the weight measuring means up and down means to move the weight measuring means up and down. It is characterized in that the weight of the human body can be measured while sitting on the chair by moving the weight measuring means and bringing the weight measuring means into close contact with the chair and floating the chair.

According to a second aspect of the present invention, in the weight scale capable of measuring the seated chair according to the first aspect, the weight measuring unit or an extension unit attached to the weight measuring unit and moving integrally with the weight measuring unit. By lifting the chair by contacting the horizontal frame between the left and right legs horizontally provided between the legs under the seat of the chair, and lifting the chair, enabling the weight measurement of the human body while sitting on the chair. Is characterized by.

The invention according to claim 3 is the weight scale capable of measuring the seated chair according to claim 2,
The extension part is a width expansion/contraction plate composed of two plates on the first side and the second side, or an expansion/contraction frame composed of frames on the first side and the second side so that the width can be expanded/contracted.

The invention according to claim 4 is a weight scale capable of measuring the seated chair according to claim 3,
Regarding the operation of the width expansion/contraction plate or the expansion/contraction frame, the first side and the second side are moved in different directions by one operation to perform an expansion or contraction operation.

The invention according to claim 5 is the weight scale capable of measuring each seated chair according to any one of claims 1 to 4 ,
Position adjustment having at least one of a translation function for adjusting laterally biased entry in a state of being placed under the chair and a rotating function for adjusting a tilted entry state Means is provided on the pedestal.

The invention according to claim 6 is a weight scale capable of measuring each seated chair according to claim 5 ,
A sensor is provided on the weight measuring unit or an extension attached to the weight measuring unit and moving integrally with the weight measuring unit, and the sensor detects the proximity state to the inter-leg horizontal frame and outputs the detection output. The drive means is driven via the controller to operate the position adjusting means.

The invention according to claim 7 is a weight scale capable of measuring each seated chair according to claim 6 ,
The weight measuring means up-and-down moving means is driven via a controller according to the detection output of the proximity state or the contact state with the inter-leg horizontal frame by the sensor or a separately installed sensor.

The invention according to claim 8 is a weight scale capable of measuring each seated chair according to any one of claims 1 to 7 ,
The chair is provided with a tag for identifying the type of chair, an identification code, a mark, or a color, and the scale is equipped with a tag reader, a code reader, and a camera for reading, thereby obtaining the type of chair. , The type of the chair is converted into the weight from the type-weight comparison table registered in the computer in advance, the weight of the chair is obtained, and the weight of the chair is subtracted from the weight measurement value of each seated chair to obtain the weight. It is characterized by

The invention according to claim 9 is the weight scale capable of measuring the seated chair according to any one of claims 1 to 8 ,
The pedestal is provided with wheels or/and a hand-held rod for pushing or pulling to facilitate transportation.

The invention according to claim 10 is a weight measuring method,
The weight scale according to claim 1 is used to measure the weight by moving the pedestal and the weight measurement means between the legs of the chair.

Since it is configured as described above, the weight scale capable of measuring the seated chair according to the present invention can easily measure the weight of the chair while the patient is placed on the chair, without replacing the seat, and can be reduced. Easy to carry.

It is a figure which shows one Embodiment of the weight scale which can measure with the seated chair concerning this invention. It is a figure which shows one mode of the means which moves up and down the weight scale part of the weight scale which can measure the seated chair concerning this invention. It is a figure which shows other embodiment of the weight scale which can measure with the seated chair concerning this invention. It is a figure which shows other embodiment of the weight scale which can measure with the seated chair concerning this invention. It is a figure which shows the embodiment of the width expansion/contraction plate for width expansion of the chair pressing part of the weight scale which can measure with the seated chair concerning this invention. It is a figure which shows the other embodiment of the width expansion/contraction plate for width expansion of the chair pressing part of the weight scale which can measure with the seated chair concerning this invention. It is a figure which shows one Example of the position adjustment means of the weight scale which can measure the seated chair concerning this invention. It is a figure which shows the other Example of the position adjusting means of the weight scale which can measure with the seated chair concerning this invention.

A weight scale capable of measuring a seated chair according to the present invention includes a pedestal, a weight measurement means, and a weight measurement means vertical movement means for moving the weight measurement means up and down with respect to the pedestal. The width of is set between the legs of the chair so that the pedestal and weight measuring means can be moved between the legs of the chair, or the chair can be placed over the pedestal and weight measuring means to move the weight measuring means up and down. By moving the weight measuring means up and down by the means to bring the weight measuring means into close contact with the chair and floating the chair, the weight of the human body can be measured while sitting on the chair.

FIG. 1 is a diagram showing an embodiment of a weight scale according to the present invention capable of measuring the seated chair. In particular, FIG. 1 shows a wheelchair-compatible scale. In 1-A, in the weight scale 100 capable of measuring the seated chair, the weight measurement means 120 is provided on the pedestal 110, and the weight measurement means 120 is operated to operate the weight measurement means 120. You can move up and down with respect to.
The weight measuring unit 120 is a so-called weight scale, and has a weight measuring unit 122 that is brought into contact with and pushed by an object to be measured on a weight scale base 121. When the weight measuring unit 122 is pressed, a load cell (not shown), It is designed to display the weight by pressing a spring or the like. Since the weight measuring means 120 is a weight scale that is commonly used, no explanation will be required.
In the state where the pedestal and the weight measuring means 120 are inserted between the legs of the chair, the weight measuring means 120 is not in contact with the chair. Therefore, once the weight is measured, the weight measuring means 120 is moved up and down. By operating and lifting the weight measuring means 120 and bringing the weight measuring unit 122 into contact with the wheelchair and lifting, the weight of each wheelchair can be measured while sitting. The measurement result is displayed on the display 140.

In 1-A, the weight measuring means 120 is formed on the pedestal 110 while allowing a relatively large thickness. Therefore, a folding wheelchair such as 1-B has some problems.
The outline of the wheelchair 160 will be described in 1-B.
There is an armrest 162 on both sides of the seat seat portion 161 of the chair, and a backrest 163 with a push handle on the back, a front wheel 164 on the front leg portion of the chair, a large wheel 165 instead of the rear leg, and a seat portion 161. To support the upper horizontal frame 166, the front wheel 164 and the large wheel 165 to support the lower inter-leg horizontal frame 167, and the front frame 168 that obliquely connects the upper horizontal frame 166 and the lower inter-leg horizontal frame 167. A folding frame 170 for folding is provided between the footrest 169 at the tip thereof and the left and right lower leg-to-leg horizontal frames 167 (below the seat sheet portion 161). It is a general wheelchair.
By the way, the lateral gap between the front wheels 164, which are the legs of the chair, the large wheels 165, and the lower inter-leg horizontal frame 167 that supports the legs, and the space under the seat portion 161 allow the scale 100 to be submerged. From the viewpoint of the folding frame 170, the presence of the folding frame 170 is an obstacle. Therefore, the structure of the weight scale 100 needs to avoid the folding frame 170. 1-C is a state in which the weight scale 100 is slipped into the wheelchair 160. 1-D shows the arrangement state of the 1-B as seen from the direction of the arrow A. However, the footrest 169 is not shown.

As indicated by 1-D (the wheelchair side is indicated by a dotted line and the weight scale side is indicated by a solid line), the weight scale 100 is below the folding frame 170 of the wheelchair 160 and is not in collision. When the weight scale 100 is inserted, there is no contact at all, but after insertion, the weight measurement means vertical movement means 130 lifts the weight measurement base 121 together with the weight measurement portion 122 as shown by arrow B, and the weight measurement portion When the extension plate 122B of the vehicle comes into contact with the lower inter-leg horizontal frame 167 and is lifted to lift the front wheels 164 and the large wheels 165, the weight of each wheelchair is measured. When the measurement is completed, the weight measuring means up-and-down moving means 130 conversely lowers the weight scale base portion 121, that is, the weight measurement portion 122 and the extension plate 122B of the weight measurement portion to restore the state before raising the weight scale 100. Remove from wheelchair 160. As described above, the weight scale 100 is dipped under the seated wheelchair 160. In other words, the weight can be measured while the wheelchair 160 seated on the weight scale 100 is covered, Since it is easy, the whole time required for measurement is short, the patient does not need to move, and the scale 100 itself is small and inexpensive, and the scale can be easily moved.

FIG. 3 is a diagram showing another embodiment of a weight scale according to the present invention capable of measuring the seated chair together. In FIG. 1, a folding wheelchair that is generally used is used. However, in the case of a folding chair or an ordinary chair, the folding frame 170 is not limited, so that the folding frame 170 can be configured as shown in FIG. The difference from FIG. 1 is that the total height of the weight scale 100 and the height of the pedestal 110 and the weight measurement means 120 (the weight scale base 121, the weight measurement unit 122) are the same as the seat 160B of the 3-B seat. The lower you go, the higher you can do it, with no other difference. 3-C shows a state in which the weight scale 100 is put under the chair 160B. In this case, the weight measuring means up-and-down moving means 130 raises the weight scale base portion 121, and thus the weight measurement portion 122 (and the weight measurement portion extension plate 122B/the weight measurement portion extension plate 122B may be unnecessary). Then, lift the seat of the chair (or the frame of the seat) and lift the legs of the chair, so that the weight of the chair can be measured. Note that the case where the extension plate 122B of the weight measuring unit is unnecessary is a case where there is no width expansion/contraction plate 310 of the weight measuring unit 122 in 3-A, and the weight measuring unit 122 itself contacts the seat of the chair from below. Are measured. In 3-B, in the chair having the inter-leg horizontal frame 320 connecting the legs, the inter-leg horizontal frame 320 is fixed to the weight measuring unit 122 or the weight measuring unit 122 as in the state of FIG. Measurement can be performed by lifting the plate 310.

Next, an example of the weight measuring means vertical movement means 130 will be touched upon. FIG. 2 is a diagram showing an embodiment of means for vertically moving the weight scale unit of the weight scale capable of measuring the seated chair according to the present invention.
Between the weight scale base 121 and the pedestal 110, there is a weight measuring means vertical movement means 130.
The weight measuring means up-and-down moving means 130 is as follows. A support shaft 131 is fixed to the pedestal 110, a pinion (circular gear) 132 is rotatably supported on the support shaft 131, and there is a rack (flat plate tooth) 133 engaged with the pinion 132. The end of the rack 133 and the rack tip. 134 is fixed to the weight scale base 121. The pinion 132 has a rotation handle 135, and when the pinion 132 is rotated, the rack 133, and hence the weight scale base 121, and thus the weight measurement unit 122 can be moved up and down with respect to the pinion 132. The rod 136 and the end of the tube 137 into which the rod 136 is inserted are fixed to the pedestal 110 and the weight scale base 121 as shown in the figure, and are guides for assisting vertical movement between the pedestal 110 and the weight scale base 121. Means can be used, but it goes without saying that examples of means are not limited to this.
The weight measuring means up-and-down moving means 130 can be used in many examples other than using the gears as described above. In addition, it is not necessary to set the amount of movement finely like a gear, and there may be two states of upper and lower switching with a lever. Between the weight scale base 121 and the weight measurement unit 122 is a measurement element 123, such as a load cell.

Next, FIG. 4 is a diagram showing another embodiment of the weight scale according to the present invention capable of measuring the seated chair together.
In 4-E, the pedestal 110 and the weight measuring means 120 (the weight scale base 121, the weight measuring section 122) and the weight measuring means up-and-down moving means 130 are used in the minimum configuration. Others are equipped with wheels 410, push rods 420 for pushing or pulling, etc., which are convenient for movement.
In 1-A of FIG. 1, the extension plate 122B of the weight measurement unit is configured such that the extension plate 122B of the weight measurement unit is lower than the center of the weight measurement unit 122, but in 4-A, the weight measurement unit 122 is configured. The extension plate 122B of the weight measuring unit is formed at the same height from the center of the. When the extension plate 122B of the weight measurement unit of the width expansion/contraction plate 310 attached to the weight measurement unit 122 contacts the lower inter-leg horizontal frame 167, the center portion of the weight measurement unit 122 itself also becomes the extension plate 122B of the weight measurement unit. It can be at the same height or lower. In fact, the lower leg horizontal frame 167 often has a height of 10 cm or more, so that it is possible to make the entire height a thin structure (low height) corresponding thereto.

In 4-B, when the weight scale 100 is inserted into the wheelchair 160, the weight scale 100 is configured to be sufficiently lower than the position of the folding frame 170 when the weight measurement means 120 is lowered with respect to the pedestal 110. After being inserted into the wheelchair, the weight measuring means up-and-down moving means 130 raises the weight measuring means 120 to bring the weight measuring portion 122 into contact with the seat of the wheelchair and lift it. Therefore, in the example in which the weight measuring unit 122 is provided with the fitting groove 430 into which the folding frame 170 is fitted without obstruction, in this case, the amount of vertical movement by the weight measuring unit up-and-down moving unit 130 increases, which is somewhat inconvenient. There is a drawback.
In 4-C, the width expansion/contraction plate 310 placed on the weight measuring unit 122 expands and contracts in the width direction. This means that the weight scale 100 can be easily inserted into the wheelchair 160 in the contracted state, and the scale can be expanded after insertion. This is a convenient means when the lower inter-leg horizontal frame 167 is placed on the width expansion/contraction plate 310. This can be done by using the width expansion/contraction plate 310 placed on the weight measuring unit 122 as in 4-C or by using the width expansion/contraction plate 310 built in the weight measuring unit 122 as in 4-D. It is possible to do so. In the former case, the end of the width expansion/contraction plate 310 is fitted in a guide piece having a U-shaped cross section and moves along the guide piece. Of course, for expansion/contraction, the width expansion/contraction plate 310 is composed of two sheets.

Next, the expansion/contraction mechanism of the width expansion/contraction plate 310 will be described.
FIG. 5: is a figure which shows the embodiment of the width expansion/contraction plate for width expansion of the chair pressing part of the weight scale which can measure with the seated chair concerning this invention.
In FIG. 5, the width expansion/contraction plate 310 corresponds to 4-D in FIG. 4 and is housed in the weight measuring unit 122. The operation is the same even if the structure is fitted with one piece. The weight measurement unit 122 has a storage hole 510, two width expansion/contraction plates 310 are accommodated, a part of the weight measurement unit 122 extends out of the weight measurement unit 122, and the central portion rotates to the weight measurement unit 122 or its extension 520. It is rotatably and movably connected to one end of a possibly fixed dogleg 530, and a wire 540 is connected to the other end of the dogleg 530. The left dogleg shaped piece 530A is connected to the wire 540, and the right dogleg shaped piece 530B is once connected to the wire 540 via the pulley A550. Pull the wire 540 (indicated by a dotted arrow in the figure). Direction), and the two width expansion/contraction plates 310 move in a direction to enter the storage hole 510 of the weight measuring unit 122 and return the wire 540 (the direction of the solid line arrow in the figure), and conversely, the two width expansion/contraction plates 310. Moves in a direction of exiting the storage hole 510 of the weight measuring unit 122. Since the two width expansion/contraction plates 310 are attached to the weight measuring unit 122 in the direction in which they are extended by the elastic restoration body 560 such as a spring, the wire 540 is returned when the wire 540 is unfixed. It happens naturally and easily. To accommodate it, the wire 540 may be pulled to the maximum and fixed. It should be noted that these circumstances can be variously modified.

Similar to FIG. 5, the same function as the width expansion/contraction plate 310 can be configured by a frame such as a pipe instead of the plate-shaped body. FIG. 6 is such an example. It is not the width expansion/contraction plate 310 that mounts the lower inter-leg horizontal frame 167, but the frame. FIG. 6 is a diagram showing an embodiment of an expansion/contraction frame for expanding the width of the chair pressing portion of the weight scale capable of measuring the seated chair according to the present invention.
Instead of the width expansion/contraction plate 310, here, the expansion/contraction frames 610 are connected to each of the left and right sides, and the other operations are the same. Corresponding to the expansion/contraction frame 610, the storage hole 510 is also tubular.
In addition, the width expansion/contraction plate 310 and the expansion/contraction frame 610 are a form of an extension part that extends and expands the width of the weight measurement part 122. The extension part does not change the width of the weight measurement part 122, but the weight measurement part 122. Alternatively, the width may be freely changed on the spot such as the width expansion/contraction plate 310 and the expansion/contraction frame 610. It should be noted that the extension and the width expansion/contraction plate 310 and the expansion/contraction frame 610 as one form of the extension naturally move together with the weight measuring unit 122 in the vertical direction.

FIG. 7 is a view showing an embodiment of the position adjusting means of the weight scale capable of measuring the seated chair according to the present invention. When the weight scale 100 is put under a chair, the weight scale 100 may be biased to the left and right in the lateral direction or may be slightly tilted. Therefore, before lifting the weight measuring means 120, the weight measuring means 120 is slightly moved in the lateral direction. Or you may want to correct the tilt. Although it is possible to perform each of the weight scales 100, it is convenient to have a position adjusting means for this purpose. The position adjusting means will be described with reference to FIG. 7. 7-A shows the whole scale 100. The same is true of any of the examples shown so far. The part of the pedestal 110 is, for example, 7-B. The pedestal 110 includes a lower stage portion 111, a middle stage portion 112, and an upper stage portion 113. In this example, the lower part 111 contacts the floor surface (via the wheels 410, if any). The middle section 112 is translatable in the lateral direction with respect to the lower section 111. The upper stage 113 is rotatable with respect to the middle stage 112 about a vertical axis at the center by a desired inclination angle. By the former, it is possible to correct the lateral bias in the lateral direction, and by correcting the inclination by the latter, it is possible to adjust the weight measuring means 120 arranged above them to an appropriate position. Therefore, by manually translating or rotating the handle 114 attached to the upper stage 113 or the middle stage 112, these can be moved and adjusted. In 7-B, the weight measuring means up-and-down moving means 130 for lifting the weight measuring means 120 is omitted.

7-C is an example of a translation mechanism.
Between the lower part 111 and the middle part 112, a translation means for facilitating movement in the lateral direction (arrow direction) is provided. In this example, the pinion rack 710 or/and the translation slide bar 720 is provided, and one of the pinion rack 710 and the translation slide bar 720 is connected and fixed to the lower step portion 111 and the other to the middle step portion 112. The number is arbitrary.
7-D is an example of a rotation mechanism.
Between the middle part 112 and the upper part 113, a rotation coupling means A730 is provided, which is rotatable while being fitted in a cylinder, which is a column that can rotate around a vertical axis in the center. In order to make it easier to see the fitted state of the rotary coupling means A730, the cross section cut along the central axis is shown by diagonal lines.
7-E is an example of another rotation mechanism.
7-D is an example in which one rotary coupling means A730 is provided around the rotation axis, but in 7-E, in addition to the rotary coupling means A730 around the rotation axis, a rotary coupling means B740 is also provided on the outer circumference. doing. The rotary coupling means B740 is a coupling means having a large diameter that can rotate around the rotation axis. It should be noted that it is possible to use only the rotary coupling means B740 on the outer periphery without the rotary coupling means A730.
The vertical relationship between translation and rotation can be reversed, and only one of them may be provided.

In this way, since the desired movement in the width direction and the inclination adjustment can be performed by translation and rotation, the position adjustment after the weight scale 100 is put under the chair 160 is easy, and after the adjustment, the position is adjusted. Hold. An example of the means for holding the position after the adjustment is shown in 7-F, but the present invention is not limited to this. In 7-F, in this figure, the middle stage 112 is rotatably installed on the lower stage 111, and the upper stage 113 is rotatably installed on the middle stage 112. The description of the weight measuring means 120 above is omitted. The mounting bar 751 of the holding means 750 is fixed to the lower step portion 111, and the slide bar 752 fits into the mounting bar 751 and can move in the arrow direction. In this example, since the lower end of the handle 753 is rotatably connected to the lower step portion 111 and the middle end is rotatably connected to the tip of the slide rod 752, when the handle 753 is tilted to the left in the figure, the slide rod 752 is rotated. Moves to the left, and a fixture (key, brake pad, etc.) 754 attached to the tip of the slide rod 752 fixes the middle section 112 and the upper section 113.
As described above, the adjusted position can be held. If the fitting state of the slide rod 752 to the mounting bar 751 is a male and female screw connection, the handle 753 is unnecessary, and the slide rod 752 moves when the screw is turned.

FIG. 8 is a diagram showing another embodiment of the position adjusting means of the weight scale capable of measuring the seated chair according to the present invention. In FIG. 7, desired movement in the width direction and tilt adjustment can be manually performed by translation and rotation, but in FIG. 8, this is performed by electronic/mechanical drive/control.
When the first pinion 811 is rotated by a desired angle by the first motor 810 attached to the lower stage portion 111, the first rack 812 engaged with the first pinion 811 moves, and the first rack 812 moves to the middle stage as shown. Since it is attached to the section 112, the middle section 112 is translated. Similarly, when the second motor 820 attached to the lower stage portion 111 rotates by a desired angle, the first pulley 821 rotates and the belt 823 moves. A second pulley 822 is attached to substantially the center of the upper portion 113, and a belt 823 drives the second pulley 822. Therefore, the upper part 113 can rotate by a desired angle. The first motor 810 and the second motor 820 are controlled and driven by the controller 830.
In 8-B, with the scale 100 fitted under the wheelchair 160 (not shown), the weight measuring unit 122 of the weight measuring means 120 approaches the leg-interior horizontal frame 167 at the lower portion of the wheelchair 160. Indicates the state. In this example, a sensor 840 that detects a proximity state (distance or the like) to the leg horizontal frame 167 is attached on the extension plate 122B of the weight measurement unit attached to the weight measurement unit 122 or the width expansion/contraction plate 310. Has been. When the sensor 840 is located at the left, right, front and rear four corners, the lateral shift and inclination of the weight measuring unit 122 (hence, the extension plate 122B of the weight measuring unit or the width expansion/contraction plate 310) can be known. The detection signal can be provided to the controller 830 to drive the desired translation and rotation. After the position is corrected by a desired translation and rotation, the pinion 132 of the weight measuring means up-and-down moving means 130 is driven by a third motor (not shown) instead of the rotation handle 135, and thereby the weight measuring means. The 120 can be lifted to a desired height (in this case, the rotating handle 135 is not necessary), and the wheelchair can be lifted to measure the weight. The state of lifting the weight measuring unit 120 to a desired height can be detected by the sensor 840 as detection of a proximity state (distance or the like) or a contact state. The sensor 840 may be separately installed to drive the weight measuring means vertical movement means 130.

It should be noted that it is possible to display the weight only by subtracting the weight of the chair from the measured weight, which can be done as follows. If there is only one chair, the weight is registered in the calculation circuit and the weight is subtracted. When there are multiple types of chairs, you can register the weight and specify the type, but you can attach a tag for each type to the chair and recognize the type of chair with the tag reader attached to the scale 100, The weight corresponding to the type may be converted into the weight from the type-weight comparison table registered in advance in the computer in the weight scale 100 and used for the subtraction. Instead of the tag, the mark, color, or the chair itself attached to the chair may be image-recognized to determine the type of chair.

INDUSTRIAL APPLICABILITY As described above, the weight scale capable of measuring the seated chair according to the present invention can easily measure the weight of the chair while the patient is still on it, without having to replace the patient, and can be made small, so that it is easy to transport. It is very convenient to use.

100 Weight scale 110 Pedestal 120 Weight measurement means 121 Weight scale base 122 Weight measurement section 122B Weight measurement extension plate 123 Measuring element 130 Weight measurement means Vertical movement means 131 Support shaft 132 Pinion 133 Rack 134 Rack tip 135 Rotation handle 140 Indicator 160 Wheelchair 160B Chair 161 Seat Seat 162 Armrest 163 Backrest 164 Front Wheel 165 Large Wheel 166 Upper Horizontal Frame 167 Lower Horizontal Frame 168 Lower Frame Horizontal Frame 168 Front Frame 169 Footrest 170 Folding Frame 310 Width Expansion Plate 320 Horizontal Frame 410 Wheels 420 Hand-held rod 430 Fitting groove 510 Storage hole 520 Extension part 530 of the weight measuring section 530 dogleg shaped piece 530A Left dogleg shaped piece 530B Right dogleg shaped piece 540 Wire 550 Pulley A
560 Elastic restoration body 610 Expansion/contraction frame 710 Pinion rack 720 Translation slide bar 730 Rotation coupling means A
740 rotary coupling means B
750 Holding means 751 Mounting bar 752 Slide rod 753 Handle 754 Fixing device 810 First motor 811 First pinion 812 First rack 820 Second motor 821 First pulley 822 Second pulley 823 Belt 830 Controller 840 Sensor

Claims (10)

The pedestal, a weight measuring means, and a weight measuring means up-and-down moving means are provided, and the weight measuring means moves up and down with respect to the weight scale base and the weight of the measurement object with respect to the weight scale base. A weight measuring unit for measuring, wherein the weight measuring means vertical movement means moves the weight measuring means vertically with respect to the pedestal via the weight scale base.
Move the pedestal and the weight measuring means between the legs of the chair, or cover the pedestal and the weight measuring means with the chair, and move the weight measuring means up and down means to move the weight measuring means up and down. The weight scale capable of measuring the weight of a human body while sitting on the chair by moving the weight measuring means into close contact with the chair and floating the chair. .. In the horizontal frame between the left and right legs horizontally provided between the legs under the seat of the chair, the weight measuring unit or an extension unit attached to the weight measuring unit and moving integrally with the weight measuring unit is provided. The weight scale capable of measuring the weight of the seated chair according to claim 1, wherein the weight of a human body can be measured while sitting on the chair by contacting and lifting the chair. The seating according to claim 2, wherein the extension portion is a width expansion/contraction plate formed of two plates on the first side and the second side or a expansion/contraction frame formed of frames on the first side and the second side so that the width can be expanded/contracted. A scale that can measure every chair. 4. Regarding the operation of the width expansion/contraction plate or the expansion/contraction frame, the first side and the second side are moved in different directions by one operation to perform an expansion or contraction operation. A scale that can measure each seated chair. Position adjustment having at least one of a translation function for adjusting laterally biased entry in a state of being placed under the chair and a rotating function for adjusting a tilted entry state The weight scale capable of measuring the seated chair according to any one of claims 1 to 4 , wherein means is provided on the pedestal. A sensor is provided on the weight measuring unit or an extension attached to the weight measuring unit and moving integrally with the weight measuring unit, and the sensor detects the proximity state to the inter-leg horizontal frame and outputs the detection output. The weight scale capable of measuring the seated chair according to claim 5 , wherein the drive means is driven by the controller to operate the position adjusting means. The sensor or claim 6, characterized in that apart from the detection output of the proximity state or contact state between the inter-leg horizontal frame by the installed sensors, via the controller to drive the weight measuring means vertically moving means A scale that allows you to measure the chair you sit on. The chair is provided with a tag for identifying the type of chair, an identification code, a mark, or a color, and the scale is equipped with a tag reader, a code reader, and a camera for reading, thereby obtaining the type of chair. , The type of the chair is converted into the weight from the type-weight comparison table registered in the computer in advance, the weight of the chair is obtained, and the weight of the chair is subtracted from the weight measurement value of each seated chair to obtain the weight. The weight scale capable of measuring the seated chair as claimed in any one of claims 1 to 7 . The seated chair according to any one of claims 1 to 8 , wherein the pedestal is provided with wheels or/and a hand-held rod for pushing or pulling to facilitate transportation. A scale that can measure. A weight measuring method comprising: using the weight scale according to claim 1, wherein the pedestal and the weight measuring means are slid between the legs of the chair to measure the weight.

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