JP2019056665A - Scale capable of measuring weight of person sitting in chair - Google Patents

Abstract

To provide a weight scale capable of measuring weight of a person sitting in a chair, which eliminates the inconvenience of having the person mounted on a scale with the chair or having the person moved into another chair with a scale.SOLUTION: A weight scale of the present invention comprises a base, weight measurement means, and means of vertically moving the weight measurement means for moving the weight measurement means up and down relative to the base. The base and the weight measurement means are designed to have widths that are less than a width between wheels of a chair so that the base and the weight measurement means can be inserted between the wheels of the chair, which allows the means of vertically moving the weight measurement means to move the weight measurement means up and down to bring the weight measurement means into tight contact with the chair for measurement.SELECTED DRAWING: Figure 1

Description

The present invention relates to a weight scale that can measure a sitting chair, particularly a wheelchair, without descending from the chair.

In hospitals and care facilities, the weights of patients and care recipients are often measured. Some patients and care recipients are not only able to walk on their own, but are often bedridden or move with the help of a caregiver. In such a case, various examples of correspondence can be found in the prior literature.
First, if you are bedridden, measure it as it is without moving it, that is, measure the whole bed where the patient lies, in such an example, the bed itself is originally equipped with a weight measuring device. Therefore, it is necessary to move either the weight measuring device that can measure the bed or the bed.
The second one is bedridden or not bedridden, but assistance is required for movement, and the assistant puts it on a wheelchair and moves to a place with a scale. There are things that measure the whole wheelchair, and those that place the patient or cared person on a chair with a scale.
In the following, the circumstances will be described using the prior literature as an example.
In Patent Document 1, the bed itself is originally equipped with a load sensor. This needs to be prepared at the time of manufacturing the bed, and since it is difficult to adapt the already manufactured bed, its application is limited. The same applies to Patent Document 2, however, in this example, the patient is transported by a wheelchair and placed on a bed table for measurement. The trouble of changing the patient is troublesome, and it seems to be useless to make all the usual beds in this way. Patent Document 3 is a load measurement scale, which is mounted and measured for each wheelchair or for each foot (caster) of a bed. Since the wheelchair is placed on a pedestal with a built-in scale, or the bed is particularly large, it is not easy to put the load measurement scale under the foot. Moreover, it seems that the effort to remove after the measurement is large. In Patent Document 3, since the scale of load measurement is laid under the four legs of the bed, there is an advantage that can not be made large here, but Patent Document 4 is a weight measurement that lifts under the bed and lifts the bed together. Since it is a device, it needs to be close to the bed and strong enough to support the load of both the bed and the human body, which is excessive, heavy, and expensive.
It is not practical 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, because it is an excessive load only for the measurement of body weight.
Patent document 5 is a weight scale on a wheelchair. Since it is easy to move the entire wheelchair, there is no problem in movement, and the above example is the most realistic. However, to load each wheelchair, it is necessary to go up a little step. The scale itself is not suitable for large movements because the car is small. When the car is made larger, the steps become larger and there is a restriction that the wheelchair cannot be placed.
In Patent Document 6, a wheel scale is attached to the wheelchair itself. Compared to the wheelchair itself, the structure with the scale is itself expensive. It is not practical to have all wheelchairs with scales. Then, if a part is attached with a weight scale, the patient is carried on a normal wheelchair without a weight scale, and is placed on the wheelchair with a weight scale to measure the weight scale. There is no need to replace it, but it seems that it is not necessary to have a wheelchair attached to the scale.
Patent Document 7 seems to be appropriate from this point of view. The chair itself has a scale. There is a need to change the patient.
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 the same as Patent Document 2. Patent Document 9 is a device that suspends a patient with a hanging tool such as a hammock. If there is a weight scale in the hanging part, the weight of the patient can be measured. It is not easy to put a patient on the body while hanging it, and it is necessary to have the robustness and size of the device corresponding to the weight of the patient, and the device is expensive.

Japanese Patent No. 4002905 Utility model registration No. 3063677 JP-A-2005-300368 Utility model registration No. 3126295 JP 10-232161 JP2012-47638 JP-A-2005-278901 JP2009-270902A JP2001-487

As described above, the weight scale according to the present invention measures the weight of a patient or a cared person, but the disadvantages shown in the examples of the prior art, particularly for each bed, is measured by the device. In view of the fact that it is large, and is not a good idea in terms of price, mobility, and patient replacement, we will use weight measurement that corresponds to the fact that wheelchair movement is usually realistic. Provided is a weight scale that can be measured while sitting on a chair without the inconvenience of being placed on the weight scale and without being replaced with another chair with a weight 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 relative to the pedestal, and the width of the pedestal and the weight measurement means falls between the legs of the chair. By setting the width, 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 by the weight measuring means up and down, and the weight measuring means is closely attached to the chair and the chair is seated. It is possible to measure the weight of each human body.
Hereinafter, it describes along a claim.

The invention according to claim 1 is a weight scale capable of measuring the seated chair,
A pedestal, a body weight measuring means, and a body weight measuring means vertical movement means, wherein the body weight measuring means is moved up and down by the weight of the measurement object relative to the weight scale base, and the weight of the measurement object; A weight measuring unit that measures the weight, and the weight measuring means vertical movement means moves the weight measuring means up and down with respect to the pedestal via the weight scale base,
The width of the pedestal and the weight measuring means is set to a width that fits between the legs of the chair, so that the pedestal and the weight measuring means are moved between the legs of the chair, or the pedestal and the weight measuring means. The chair is placed on the chair by placing the chair on the means and moving the weight measuring means up and down by the weight measuring means up and down means so that the weight measuring means is in close contact with the chair and floating the chair. The human body weight can be measured as it is.

The invention according to claim 2 is a weight scale capable of measuring the seated chair according to claim 1,
The body weight measuring unit or an extension unit attached to the body weight measuring unit and moving integrally with the body weight measuring unit is provided in a horizontal frame between the left and right legs horizontally provided between the legs under the chair seat. The weight of the human body can be measured while sitting on the chair by touching and lifting the chair.

The invention according to claim 3 is a weight scale capable of measuring the seated chair according to claim 2,
The extension portion may be a width expansion / contraction plate by two plates on one side and two sides or an expansion / contraction frame by a frame on one side and two sides 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,
With respect to the operation of the width expanding / contracting plate or the expanding / contracting frame, the first side and the second side are moved in different directions by one operation to be expanded or contracted.

The invention according to claim 5 is a weight scale capable of measuring the seated chair according to any one of claims 1 to 4,
When the chair has a folding frame for folding under the chair seat, so as not to contact the folding frame.
The height and width of the pedestal and the weight measuring means, or when the pedestal is equipped with wheels, the height and width of the pedestal including the wheels and the weight measuring means are limited and configured. And

The invention according to claim 6 is a weight scale capable of measuring the seated chair according to any one of claims 1 to 5,
Position adjustment provided with at least one of a translation function for adjusting that it is biased to the left and right in the lateral direction while it is placed under the chair and a rotation function for adjusting the state where it is inclined. Means is provided on the pedestal.

The invention according to claim 7 is a weight scale capable of measuring the seated chair according to claim 6,
A sensor is provided in the body weight measuring unit or an extension unit attached to the body weight measuring unit and moving integrally with the body weight measuring unit, and the sensor detects a proximity state with the horizontal frame between the legs, and the detection output Thus, the driving means is driven via the controller to operate the position adjusting means.

The invention described in claim 8 is a weight scale capable of measuring the seated chair according to claim 7,
The weight measuring means vertical movement means is driven via a controller by a detection output of a proximity state or a contact state with the inter-leg horizontal frame by the sensor or a separately installed sensor.

The invention according to claim 9 is a weight scale capable of measuring the seated chair according to any one of claims 1 to 8,
The chair is provided with a tag identifying the type of chair, a recognition code, a mark, or a color, and provided with a tag reader, a code reader, and a camera for reading. From the type-weight comparison table registered in advance in the computer, the weight of the chair is obtained by calculating the weight, and the weight is obtained by subtracting the weight of the chair from the measured body weight of each seated chair. .

The invention according to claim 10 is a weight scale capable of measuring the seated chair according to any one of claims 1 to 9,
The pedestal is provided with a wheel or / and a hand bar for pushing or pulling to facilitate transportation.

Since it is configured as described above, the weight scale capable of measuring the seated chair of the present invention can easily measure the weight of each chair without changing the position while the patient is placed, and can be reduced. Transportation is also easy.

It is a figure which shows one embodiment of the weight scale which can measure the seated chair concerning this invention. It is a figure which shows one Embodiment of the means to move 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 the other embodiment of the weight scale which can measure the seated chair concerning this invention. It is a figure which shows the other embodiment of the weight scale which can measure the seated chair concerning this invention. It is a figure which shows the embodiment of the width expansion / contraction board for the lateral width expansion of the chair holding | suppressing part of the weight scale which can measure the seated chair concerning this invention. It is a figure which shows the other embodiment of the width expansion / contraction board for the horizontal width expansion of the chair holding | suppressing part of the weight scale which can measure 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 adjustment means of the weight scale which can measure the seated chair concerning this invention.

The weight scale capable of measuring the 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 relative to the pedestal. The pedestal and the weight measurement means The width of the chair is set to a width that fits between the legs of the chair, so that the pedestal and the weight measuring means are moved between the legs of the chair, or the chair is placed on the pedestal and the weight measuring means, and the weight measuring means is moved up and down. By means of the means, the weight measuring means is moved up and down, the weight measuring means is brought into close contact with the chair and the chair is lifted, so that the weight of the human body can be measured while sitting on the chair.

FIG. 1 is a view showing an embodiment of a weight scale capable of measuring the seated chair according to the present invention. In particular, FIG. 1 shows a wheelchair-compatible scale. In 1-A, the weight scale 100 capable of measuring each seated chair has the weight measurement means 120 on the pedestal 110, and the weight measurement means 120 can be operated by operating the weight measurement means vertical movement means 130. Can move up and down.
The weight measurement means 120 is a so-called weight scale, and has a weight measurement unit 122 that is pressed against a measurement object on the weight scale base 121. When the weight measurement unit 122 is pressed, a load cell (not shown), A spring or the like is pressed to display the weight. Since the body weight measuring means 120 is a weight scale that is usually observed, it will not require explanation.
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. By operating and lifting the weight measuring means 120 and bringing the weight measuring unit 122 into contact with the wheelchair, the weight can be measured for each wheelchair while sitting. The measurement result is displayed on the display 140.

In 1-A, the weight measuring unit 120 is configured on the pedestal 110 with a relatively large thickness. Therefore, a folding wheelchair like 1-B has some problems.
An 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 seat portion 161. The upper horizontal frame 166 is supported at this position, the front wheel 164 and the large wheel 165 are supported, the lower leg horizontal frame 167, and the upper horizontal frame 166 and the lower leg horizontal frame 167 are diagonally connected to each other. There is a folding frame 170 for folding between the footrest 169 at the tip and between the left and right lower leg horizontal frames 167 (below the seat sheet portion 161). It is a common wheelchair.
By the way, the horizontal gap between the front wheel 164, the large wheel 165, and the lower inter-leg horizontal frame 167 that supports the chair leg, and the space under the seat portion 161, sink the scale 100. Therefore, the presence of the folding frame 170 is an obstacle. Therefore, the configuration of the scale 100 needs to avoid the folding frame 170. 1-C is a state in which the weight scale 100 is inserted into the wheelchair 160. An arrangement state viewed from the direction of the arrow A of 1-B is shown in 1-D. However, the footrest 169 is not shown.

As shown in 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 under the folding frame 170 of the wheelchair 160 and does not collide. When the weight scale 100 is inserted, it is not in contact at all. However, after the insertion, the weight measurement section 122 is lifted up by the weight measurement means vertical movement means 130 together with the weight scale base 121 as shown by the arrow B, and the weight measurement section When the extension plate 122B 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 measurement for each wheelchair is performed. When the measurement is finished, the weight measuring means vertical movement means 130 is reversed to lower the weight scale base 121, and hence the weight measuring section 122 and the extension plate 122B of the weight measuring section, to return to the state before the lifting. Move away from wheelchair 160. As described above, the weight scale 100 is submerged under the seated wheelchair 160. In other words, the weight can be measured with the wheelchair 160 seated on the weight scale 100, and the weight can be measured. Therefore, the entire time required for the measurement is short, the patient does not need to move and is easy, the scale 100 itself can be made small and inexpensive, and the scale can be easily moved.

FIG. 3 is a view showing another embodiment of a weight scale capable of measuring the seated chair according to the present invention. In FIG. 1, a folding wheelchair that is generally used in many cases is used. However, in the case of a non-folding or ordinary chair, the folding frame 170 is not limited. Therefore, the folding wheelchair can be configured as shown in FIG. 3. The difference from FIG. 1 is that the overall height of the weight scale 100, the height of the pedestal 110 and the weight measurement means 120 (the weight scale base 121, the weight measurement part 122) is the same as that of the 3-B chair 160B. There is no other difference. 3-C shows a state in which the weight scale 100 is placed under the chair 160B. In this case, the weight measuring means up-and-down moving means 130 raises the weight scale base 121, and hence the weight measuring part 122 (and the weight measuring part extension plate 122B / weight measuring part extension plate 122B may be unnecessary). Then, when the chair seat (or the seat frame) is lifted and the chair legs are lifted, the weight of the chair can be measured. The case where the extension plate 122B of the weight measuring unit is not required is a case where the weight expanding / contracting plate 310 of the weight measuring unit 122 is not provided in 3-A, and the weight measuring unit 122 itself contacts the chair seat from below. Measurement is performed. In 3-B, in a chair having a leg-to-leg horizontal frame 320 that connects the legs, the leg-to-leg horizontal frame 320 is fixedly attached 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. FIG. 2 is a diagram showing an embodiment of a means for moving up and down a scale part of a scale that can measure the seated chair according to the present invention.
Between the scale base 121 and the pedestal 110, there is a weight measuring means vertical movement means 130.
The weight measuring means vertical movement means 130 is as follows. A support shaft 131 is fixed to the pedestal 110, and a pinion (circular gear) 132 is rotatably supported on the support shaft 131, and there is a rack (flat plate tooth) 133 that meshes with the pinion 132. 134 is fixed to the scale base 121. The pinion 132 has a rotation handle 135, and when this is rotated, the rack 133, and hence the weight scale base 121, and hence 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 a guide for assisting the vertical movement between the pedestal 110 and the weight scale base 121. Means can be used, but it is obvious that examples of means are not limited to this.
There are many examples of the weight measurement means vertical movement means 130 other than using gears as described above, and can be used. Further, it is not necessary to set the amount of movement as finely as in the case of a gear. Note that a measuring element 123 such as a load cell is provided between the weight scale base 121 and the weight measuring unit 122.

Next, FIG. 4 is a figure which shows the other embodiment of the weight scale which can measure the seated chair concerning this invention.
In 4-E, it is the thing of the base 110 and the weight measurement means 120 (the weight scale base 121, the weight measurement part 122), the weight measurement means up-and-down movement means 130 with the minimum structure. Others are equipped with wheels 410, a push bar 420 for pushing or pulling, etc., which are convenient for movement.
In FIG. 1-A, the extension plate 122B of the weight measurement unit is configured in a state where the extension plate 122B of the weight measurement unit is lowered from 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 configured at the same height from the center of the center. When the extension plate 122B of the weight measurement unit of the width expanding / contracting plate 310 attached to the weight measurement unit 122 is in contact with the lower inter-leg horizontal frame 167, the central part of the weight measurement unit 122 itself is also the extension plate 122B of the weight measurement unit. It can be the same height or lower. Actually, since the lower inter-leg horizontal frame 167 is often 10 cm or more in height, it is possible to make the overall height a thin (low) configuration corresponding to this.

In 4-B, when the weight scale 100 is inserted into the wheelchair 160, the weight scale 100 is configured 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 120 is raised by the weight measuring means vertical movement means 130 so that the weight measuring section 122 is brought into contact with the seat of the wheelchair and lifted to measure. Therefore, the fitting groove 430 in which the folding frame 170 fits without getting in the way is an example provided in the weight measuring unit 122. However, in this case, the amount of vertical movement by the weight measuring means vertical moving means 130 is increased, which is somewhat inconvenient. There is a drawback.
In 4-C, the width expanding / contracting plate 310 placed on the weight measuring unit 122 expands and contracts in the width direction. In the contracted state, the weight scale 100 can be easily inserted into the wheelchair 160. Thus, this is a convenient means for placing the lower inter-leg horizontal frame 167 on the width expansion / contraction plate 310. This can be achieved by using a width expansion / contraction plate 310 placed on the weight measurement unit 122 as in 4-C, or by using a width expansion / contraction plate 310 built in the weight measurement unit 122 as in 4-D. It is possible to do. In the former, the end of the width expansion / contraction plate 310 is fitted to a U-shaped guide piece and moves along this. Of course, the width expansion / contraction plate 310 is composed of two sheets for expansion / contraction.

Next, the expansion / contraction mechanism of the width expansion / contraction plate 310 will be described.
FIG. 5 is a view showing an embodiment of a width expansion / contraction plate for widening the width of the chair pressing portion of the weight scale capable of measuring the seated chair according to the present invention.
5 corresponds to 4-D in FIG. 4 and the width expanding / contracting plate 310 is accommodated in the weight measuring unit 122. The operation is the same even in a configuration fitted with a piece. The body weight measurement unit 122 has a storage hole 510 and accommodates two width expansion / contraction plates 310, a part of which protrudes from the body weight measurement unit 122, and a central part that rotates to the body weight measurement unit 122 or its extension 520. A rod-shaped piece 530 is movably connected to one end of the dog-shaped piece 530 so as to be rotatable and movable. A wire 540 is connected to the other end of the dog-shaped piece 530. Pull the wire 540 to which the wire 540 is connected to the left-shaped piece 530A, and the wire 540 is once connected to the right-shaped piece 530B via the pulley A550 (dotted arrow in the figure). ) And the two width expansion / contraction plates 310 move in the direction of entering the accommodation hole 510 of the weight measurement unit 122 and return the wire 540 (in the direction of the solid arrow in the figure), conversely, the two width expansion / contraction plates 310. Moves in the direction of exiting the storage hole 510 of the weight measuring unit 122. In addition, since the two width expansion / contraction plates 310 are attached to the body weight measurement unit 122 in a direction extending by an elastic restoring 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. These circumstances can be modified in various ways.

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 a plate-like body. FIG. 6 shows such an example. It is not the width expansion / contraction plate 310 but the frame that mounts the lower inter-leg horizontal frame 167. FIG. 6 is a diagram showing an embodiment of an expansion / contraction frame for widening the width of the chair pressing portion of the scale that can measure the seated chair according to the present invention.
Here, instead of the width expansion / contraction plate 310, the operation is the same except that the left and right three expansion / contraction frames 610 are changed. Corresponding to the expansion / contraction frame 610, the accommodation hole 510 is also tubular.
Further, the width expanding / contracting plate 310 and the expansion / contraction frame 610 are one form of an extending part that extends and expands the width of the weight measuring unit 122, and the extending part instead of changing the width of the weight measuring unit 122 instead of the weight measuring unit 122. It may be a certain extended portion attached to the frame, or may be one whose width can be freely changed on the spot, such as a width expansion / contraction plate 310 and an expansion / contraction frame 610. It should be noted that the extension portion and the width expanding / contracting plate 310 and the expanding / contracting frame 610 as a form thereof 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 scale capable of measuring the seated chair according to the present invention. When the scale 100 is placed under the chair, it may be laterally biased to the left or right, or may be slightly tilted. Before lifting the weight measuring means 120, the weight measuring means 120 is moved slightly in the lateral direction. Or want to correct the tilt. Although it can be performed for each weight scale 100, it is more convenient to have a position adjusting means for this purpose. The position adjusting means will be described with reference to FIG. 7-A shows the whole weight scale 100. The same is true for all the examples shown so far. The portion of the pedestal 110 is, for example, 7-B. The pedestal 110 includes a lower step portion 111, a middle step portion 112, and an upper step portion 113. In this example, the lower stage portion 111 is in contact with the floor surface (via the wheel 410 if there is a wheel). The middle stage 112 can translate in the lateral direction with respect to the lower stage 111. The upper stage 113 is rotatable with respect to the middle stage 112 by a desired inclination angle around a substantially central vertical axis. The former makes it possible to correct the lateral deviation in the horizontal direction and the inclination to be corrected by the latter, so that the weight measuring means 120 arranged thereon can be adjusted to an appropriate position. Therefore, if the handle 114 attached to the upper stage 113 or the middle stage 112 is translated or rotated by hand, these can be moved and adjusted. Incidentally, in 7-B, the drawing of the weight measuring means vertical movement means 130 for lifting the weight measuring means 120 is omitted.

7-C is an example of a translation mechanism.
Between the lower step part 111 and the middle step part 112, the translation means which makes a movement easy to a horizontal direction (arrow direction) is provided. In this example, a pinion rack 710 and / or a translational slide bar 720 is provided, one of which is connected and fixed to the lower step portion 111 and the other is connected to the middle step portion 112. The number is arbitrary.
7-D is an example of a rotation mechanism.
A rotation coupling means A730 is provided that is rotatable between a middle stage portion 112 and an upper stage portion 113, and a circular column that is rotatable about a substantially central vertical axis while being fitted in a cylinder. In order to make it easy to see the fitted state of the rotation coupling means A730, the cross section cut by the central axis is indicated by oblique lines.
7-E is an example of another rotation mechanism.
7-D is an example having one rotation coupling means A730 around the rotation axis. In 7-E, in addition to the rotation coupling means A730 around the rotation axis, there is also a rotation coupling means B740 on the outer periphery. doing. The rotary coupling means B740 is a coupling means having a large diameter that can rotate around the rotation axis. In addition, there is no rotation coupling means A730, and only the outer circumferential rotation coupling means B740 is possible.
The vertical relationship between translation and rotation can be reversed, and only one of them may be provided.

As described above, since movement and tilt adjustment in a desired width direction is possible by translation and rotation, position adjustment after the scale 100 is placed under the chair 160 is easy. Hold. As an example of the holding means for the position after adjustment, the one shown in 7-F is possible, but this is not particular. 7-F, in this figure, the middle stage 112 is installed on the lower stage 111 so as to be translatable, and the upper stage 113 is installed on the middle stage 112 so as to be rotatable. Further, description of the weight measuring means 120 on the upper side is omitted. A mounting bar 751 of the holding means 750 is fixed to the lower stage portion 111, and a slide bar 752 is fitted to the mounting bar 751 and can move in the arrow direction. In this example, 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 bar 752. Therefore, when the handle 753 is tilted to the left in the figure, the slide bar 752 Moves to the left, and a fixing tool (such as a key or brake pad) 754 attached to the tip of the slide bar 752 fixes the middle step 112 and the upper step 113.
As described above, the adjusted position can be held. If the fitting state of the slide bar 752 to the mounting bar 751 is male and female screw coupling, the handle 753 is unnecessary, and the slide bar 752 moves when the screw is turned.

FIG. 8 is a view showing another embodiment of the position adjusting means of the scale capable of measuring the seated chair according to the present invention. In FIG. 7, the desired movement in the width direction and the tilt adjustment can be manually performed by translation and rotation, but FIG. 8 is performed by electronic / mechanical drive / control.
When the first pinion 811 rotates 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 is moved to the middle stage as shown in the figure. Since it is attached to the portion 112, the middle step portion 112 translates. Similarly, when the second motor 820 attached to the lower part 111 rotates by a desired angle, the first pulley 821 rotates and the belt 823 moves. A second pulley 822 is attached substantially at the center of the upper stage 113, and the belt 823 drives the second pulley 822. For this reason, the upper stage 113 can be rotated by a desired angle. The first motor 810 and the second motor 820 are controlled and driven by a controller 830.
In 8-B, the weight measuring unit 122 of the weight measuring means 120 approaches the inter-leg horizontal frame 167 at the lower part of the wheelchair 160 with the weight scale 100 fitted under the wheelchair 160 (not shown). Indicates the state. In this example, a sensor 840 for detecting a proximity state (distance, etc.) to the inter-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. It has been. If the sensor 840 is located at the four corners on the left, right, and front and rear, the lateral displacement and inclination of the weight measurement unit 122 (and hence the weight measurement unit extension plate 122B or the width expansion / contraction plate 310) can be known. A detection signal can be provided to controller 830 to drive the desired translation and rotation. After correcting the position by desired translation and rotation, the weight measuring means is driven by driving the pinion 132 of the weight measuring means vertical movement means 130 by a third motor (not shown) instead of the rotary handle 135. 120 can be lifted to a desired height (in this case, the rotating handle 135 is not required) and the wheelchair can be lifted for weight measurement. Note that the state of lifting the weight measuring unit 120 to a desired height can be detected by the sensor 840 as a proximity state (distance etc.) or a contact state. The sensor 840 may be provided separately for driving the weight measuring means vertical movement means 130.

It is possible to display only the body weight by subtracting the weight of the chair from the measured weight, which can be as follows. If there is only one type of chair, its weight is registered in the calculation circuit and subtracted. If there are multiple types of chairs, you may register the weight and specify the type, but 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 scale 100 and used for subtraction. Further, instead of the tag, the type of chair may be determined by recognizing the mark, color, or chair itself attached to the chair.

As described above, the weight scale capable of measuring every seated chair according to the present invention can easily measure the weight of each chair without placing the patient on the chair, and can be made small. It is extremely convenient to use above.

DESCRIPTION OF SYMBOLS 100 Weight scale 110 Base 120 Weight measurement means 121 Weight scale base part 122 Weight measurement part 122B Extension board 123 of weight measurement part 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 part 162 Armrest 163 Back 164 Front wheel 165 Large wheel 166 Upper horizontal frame 167 Lower leg horizontal frame 168 Front frame 169 Footrest 170 Folding frame 310 Width expansion plate 320 Leg horizontal frame 410 Wheel 420 Barb 430 Fitting groove 510 Storage hole 520 Weight measuring unit extension 530 Dog-shaped piece 530A Left-handed dog-shaped piece 530B Right-handed dog-shaped piece 540 Wire 550 Pulley A
560 Elastic restoring body 610 Expansion / contraction frame 710 Pinion rack 720 Translational slide bar 730 Rotation coupling means A
740 Rotation coupling means B
750 Holding means 751 Mounting bar 752 Slide bar 753 Handle 754 Fixing tool 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)

A pedestal, a body weight measuring means, and a body weight measuring means vertical movement means, wherein the body weight measuring means is moved up and down by the weight of the measurement object relative to the weight scale base, and the weight of the measurement object; A weight measuring unit that measures the weight, and the weight measuring means vertical movement means moves the weight measuring means up and down with respect to the pedestal via the weight scale base,
The width of the pedestal and the weight measuring means is set to a width that fits between the legs of the chair, so that the pedestal and the weight measuring means are moved between the legs of the chair, or the pedestal and the weight measuring means. The chair is placed on the chair by placing the chair on the means and moving the weight measuring means up and down by the weight measuring means up and down means so that the weight measuring means is in close contact with the chair and floating the chair. A scale that can measure the weight of the human body while it is seated. The body weight measuring unit or an extension unit attached to the body weight measuring unit and moving integrally with the body weight measuring unit is provided in a horizontal frame between the left and right legs horizontally provided between the legs under the chair seat. 2. The weight scale capable of measuring a seated chair according to claim 1, wherein the weight of the human body can be measured while sitting on the chair by contacting and lifting the chair. The seat according to claim 2, wherein the extension portion is a width expansion / contraction plate by two plates on one side and two sides, or an expansion / contraction frame by a frame on one side and two sides so that the width can be expanded and contracted. Weight scale that can be measured with each chair. The operation of the width expanding / contracting plate or the expanding / contracting frame is characterized in that the one side and the two sides are moved in different directions by one operation and are expanded or contracted. A weight scale that can be measured for each seated chair. When the chair has a folding frame for folding under the chair seat, so as not to contact the folding frame.
The height and width of the pedestal and the weight measuring means, or when the pedestal is equipped with wheels, the height and width of the pedestal including the wheels and the weight measuring means are limited and configured. The weight scale which can measure the seated chair as described in any one of claims 1 to 4. Position adjustment provided with at least one of a translation function for adjusting that it is biased to the left and right in the lateral direction while it is placed under the chair and a rotation function for adjusting the state where it is inclined. 6. The weight scale capable of measuring the seated chair as claimed in claim 1, wherein means is provided on the pedestal. A sensor is provided in the body weight measuring unit or an extension unit attached to the body weight measuring unit and moving integrally with the body weight measuring unit, and the sensor detects a proximity state with the horizontal frame between the legs, and the detection output The weight scale capable of measuring the seated chair as claimed in claim 6, wherein the driving means is driven via the controller to operate the position adjusting means. 8. The weight measuring means vertical movement means is driven via a controller in accordance with a detection output of a proximity state or a contact state with the inter-leg horizontal frame by the sensor or a separately installed sensor. A scale that can be measured with the chair you are sitting on. The chair is provided with a tag identifying the type of chair, a recognition code, a mark, or a color, and provided with a tag reader, a code reader, and a camera for reading. From the type-weight comparison table registered in advance in the computer, the weight of the chair is obtained by calculating the weight, and the weight is obtained by subtracting the weight of the chair from the measured body weight of each seated chair. A weight scale capable of measuring the seated chair according to any one of claims 1 to 8. The seated chair according to any one of claims 1 to 9, wherein the pedestal is provided with wheels or / and a push bar for pushing or pulling to facilitate transportation. A scale that can be measured.

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