JP2022061116A - Cover, cover structure, and gas information acquisition device - Google Patents

Abstract

To provide a cover capable of suppressing positional deviation of a tubular member that sucks odor due to excretion.SOLUTION: The present cover is a cover for positioning a tubular member that sucks odor due to excretion, and includes a first region 901 in which the tubular member can be inserted, and a pair of second regions 903 located on both sides in the longitudinal direction of the first region 901 and capable of accommodating an elastic body.SELECTED DRAWING: Figure 2

Description

The present invention relates to a cover, a cover structure, and a gas information acquisition device.

The number of people who spend time sleeping, resting, resting, etc. using beds and futons and cannot handle excretion by themselves is increasing year by year. In the case of such a person, the excretion process is performed by a caregiver or the like, but if a long time has passed since the excretion was performed, the person who excreted has a long period of unsanitary and unpleasant time, and the process. It takes more time and effort for the caregiver who performs the treatment than when the treatment is performed immediately after excretion.

Therefore, a gas information acquisition device that sucks air in the vicinity of a bed or a futon and detects excretion is known. This gas information acquisition device includes, for example, a tube, a tank, a pump, and an odor sensor, and the pump sends the gas inside the tank sucked through the tube, which is a tubular member, to the odor sensor. The tube connected to such a gas information acquisition device needs to be arranged on a bed or the like so as not to cause misalignment (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2019-178890

The present invention has been made in view of the above points, and an object of the present invention is to provide a cover capable of suppressing a displacement of a tubular member that sucks an odor associated with excretion.

This cover is a cover for positioning a tubular member that sucks odors associated with excretion, and is located on both sides of a first region into which the tubular member can be inserted and in the longitudinal direction of the first region, and accommodates an elastic body. It has a pair of possible second regions.

According to the disclosed technique, it is possible to provide a cover capable of suppressing the misalignment of the tubular member that sucks the odor associated with excretion.

It is a perspective view which shows typically the bed which arranged the gas information acquisition apparatus which concerns on 1st Embodiment. It is a top view which illustrates the cover which concerns on 1st Embodiment. It is a top view which illustrates the cover structure which concerns on 1st Embodiment. It is sectional drawing which illustrates the cover structure which concerns on 1st Embodiment. It is a top view which illustrates the cover which concerns on the modification 1 of 1st Embodiment. It is a top view which illustrates the cover which concerns on the modification 2 of 1st Embodiment. It is a perspective view which shows typically the bed which arranged the gas information acquisition apparatus which concerns on modification 3 of 1st Embodiment. It is a top view (No. 1) which illustrates the cover which concerns on the modification 3 of 1st Embodiment. FIG. 2 is a plan view (No. 2) illustrating the cover according to the modified example 3 of the first embodiment. It is a perspective view which shows typically the bed which arranged the gas information acquisition apparatus which concerns on modification 4 of 1st Embodiment. It is a top view which illustrates the cover which concerns on the modification 4 of 1st Embodiment. It is a perspective view which shows typically the bed which arranged the gas information acquisition apparatus which concerns on modification 5 of 1st Embodiment. It is a top view which illustrates the cover structure which concerns on the modification 5 of 1st Embodiment. It is a perspective view which shows typically the bed which arranged the gas information acquisition apparatus which concerns on modification 6 of 1st Embodiment. It is a partially enlarged perspective view near the case of the gas information acquisition apparatus which concerns on 1st Embodiment. It is a partially enlarged side view of the vicinity of the case of the gas information acquisition apparatus which concerns on 1st Embodiment. It is a partially enlarged sectional view near the case of the gas information acquisition apparatus which concerns on 1st Embodiment. It is a perspective view which illustrates the gas suction discharge apparatus which concerns on 1st Embodiment. It is sectional drawing which illustrates the gas suction discharge apparatus which concerns on 1st Embodiment. It is an exploded perspective view which illustrates the gas suction discharge apparatus which concerns on 1st Embodiment. It is a perspective view (No. 1) which illustrates the assembly method of the gas suction discharge apparatus which concerns on 1st Embodiment. It is a perspective view (No. 2) which illustrates the assembly method of the gas suction discharge apparatus which concerns on 1st Embodiment. It is a perspective view (No. 3) which illustrates the assembly method of the gas suction discharge apparatus which concerns on 1st Embodiment. It is a perspective view (No. 4) which illustrates the assembly method of the gas suction discharge apparatus which concerns on 1st Embodiment. It is a top view which illustrates the micro blower of the gas suction discharge apparatus which concerns on 1st Embodiment. It is sectional drawing which illustrates the micro blower of the gas suction discharge apparatus which concerns on 1st Embodiment. It is an exploded perspective view which illustrates the filter unit of the gas suction discharge apparatus which concerns on 1st Embodiment. It is a top view which illustrates the strain gauge which concerns on 1st Embodiment. It is sectional drawing (the 1) which illustrates the strain gauge which concerns on 1st Embodiment. It is sectional drawing (the 2) which illustrates the strain gauge which concerns on 1st Embodiment. It is a perspective view which illustrates the gas suction discharge apparatus which concerns on 2nd Embodiment. It is sectional drawing which illustrates the gas suction discharge apparatus which concerns on 2nd Embodiment. It is a perspective view (No. 1) which illustrates the assembly method of the gas suction discharge apparatus which concerns on 2nd Embodiment. It is a perspective view (No. 2) which illustrates the assembly method of the gas suction discharge apparatus which concerns on 2nd Embodiment. It is a perspective view which illustrates the gas information acquisition apparatus which concerns on 3rd Embodiment.

Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. In each drawing, the same components may be designated by the same reference numerals and duplicate explanations may be omitted.

<First Embodiment>
[Gas information acquisition device 3]
FIG. 1 is a perspective view schematically showing a bed in which the gas information acquisition device according to the first embodiment is arranged. Referring to FIG. 1, the gas information acquisition device 3 has a gas suction / discharge device 1 and a cover structure 950. In the example of FIG. 1, the gas suction / discharge device 1 is housed in the case 300 and cannot be visually recognized from the outside.

In FIG. 1, a mattress is laid on the bed 800, and the upper surface and the side surface of the mattress are covered with sheets 810. A cover structure 950 is arranged in a part of the area on the sheets 810.

The cover structure 950 has a cover 900, a tube 910, and elastic bodies 933 and 934. The cover 900 is a member for positioning the tube 910, can insert one end side of the tube 910, and can accommodate elastic bodies 933 and 934. The cover structure 950 is formed by inserting one end side of the tube 910 into the cover 900 and accommodating the elastic bodies 933 and 934.

The other end side of the tube 910 whose one end side is inserted into the cover 900 is connected to the suction side of the gas suction / discharge device 1. The tube 910 is connected and the gas suction / discharge device 1 is arranged in the vicinity of the bed 800. The gas suction / discharge device 1 is arranged, for example, on the floor on which the bed 800 is placed.

The gas suction / discharge device 1 is a device that sucks gas in the vicinity of the cover 900 through the tube 910 and acquires information (odor, humidity, etc.) of the sucked gas. For example, when a patient wearing a diaper is sleeping on the cover 900 of the bed 800, the gas suction / discharge device 1 sucks the odor associated with the patient's excretion through the tube 910.

Since the tip end side of the tube 910 inserted into the cover 900 is open, gas in the vicinity of the cover 900 can be sucked from the tip end side of the tube 910. If necessary, one or more holes for gas suction may be provided on the side surface of the tube 910 at the portion inserted into the cover 900. The details of the gas suction / discharge device 1 will be described later.

FIG. 2 is a plan view illustrating the cover according to the first embodiment. Referring to FIG. 2, the cover 900 is, for example, two rectangular cloths arranged one above the other and sewn at the position of a broken line. The cover 900 has a first region 901 and a pair of second regions 903 and 904 separated by sewing. The cover 900 may be made of a material having good breathability as long as the first region 901 is made of a material having good air permeability, and the cover 900 may not be entirely made of cloth. Examples of materials other than cloth include rubber and vinyl.

The first region 901 is an elongated region into which the tube 910 can be inserted. Both ends in the longitudinal direction of the first region 901 serve as insertion ports 901a and 901b when the tube 910 is inserted into the first region 901. The tube 910 can be inserted from any of the insertion ports 901a and 901b.

However, usually, either one of the insertion openings 901a and 901b is selected, and the tube 910 is inserted from the selected insertion opening to the vicinity of the center in the longitudinal direction of the first region 901. That is, the insertion port of the tube 910 may be provided at at least one of both ends in the longitudinal direction of the first region 901.

The second region 903 is a region having a rectangular planar shape that can accommodate the elastic body 933. Further, the second region 904 is a region having a rectangular planar shape that can accommodate the elastic body 934. The second regions 903 and 904 are located on both sides of the first region 901 in the longitudinal direction. In other words, the first region 901 is sandwiched between a pair of second regions 903 and 904.

In the second region 903, the vicinity of the central portion of the end portion opposite to the side in contact with the first region 901 is an unsewn region, and the insertion port 903a when the elastic body 933 is inserted into the second region 903. Will be. In the second region 904, the vicinity of the central portion of the end portion opposite to the side in contact with the first region 901 is an unsewn region, and the insertion port 904a when the elastic body 934 is inserted into the second region 904. Will be. The insertion openings 903a and 904a are opened without being sewn, but a zipper, a hook-and-loop fastener, a snap button, or the like may be provided in this portion.

A surplus region may be defined in a part of the first region 901 and the second regions 903 and 904. For example, the region in which the elastic bodies 933 and 934 are not inserted becomes a surplus region. For example, in the case of FIG. 2, excess regions 906 and 907 are defined laterally to the second regions 903 and 904 in the direction in which the tube 910 is stretched (on both sides of the region where the elastic bodies 933 and 934 will be inserted). ing.

FIG. 3 is a plan view illustrating the cover structure according to the first embodiment. FIG. 4 is a cross-sectional view illustrating the cover structure according to the first embodiment, and shows a cross-sectional view taken along the line AA of FIG. Referring to FIGS. 3 and 4, in the cover structure 950, one end side of the tube 910 is inserted to the vicinity of the center in the longitudinal direction of the first region 901 of the cover 900. Further, the elastic body 933 is housed in the second region 903, and the elastic body 934 is housed in the second region 904.

The elastic bodies 933 and 934 are low-load elastic bodies formed of a easily deformable material such as urethane rubber. Examples of the low-load elastic body other than urethane rubber include elastomeric materials, natural rubber, synthetic rubber (silicone rubber, urethane rubber, butyl rubber, isoprene rubber, etc.) and the like. Here, the low-load elastic body is a soft moldable material having elasticity like rubber.

The elastic bodies 933 and 934 may be a gel-like substance, water, hot water, air or the like. By properly using the elastic bodies 933 and 934 housed in the cover 900 according to the season, the patient or the like sitting on the bed can be placed in a comfortable environment. When water or hot water is contained in the elastic bodies 933 and 934, the second regions 903 and 904 of the cover 900 are formed of a material that does not allow water or hot water to leak. Breathability is not required for the second regions 903 and 904.

The elastic body 933 and the elastic body 934 do not have to be made of the same material and may not have the same shape. For example, if the elastic body 933 and the elastic body 934 have different widths, the tube 910 is arranged at a position deviated from the center of the cover 900.

Since the elastic body 933 is flexible, it can be easily accommodated in the second region 903 from the insertion port 903a shorter than the longitudinal direction of the elastic body 933 by being deformed, and it is difficult to remove the elastic body 933 from the insertion port 903a after the accommodation. Similarly, since the elastic body 934 is flexible, it can be easily accommodated in the second region 904 from the insertion port 904a shorter than the longitudinal direction of the elastic body 934 by being deformed, and it is difficult to be removed from the insertion port 904a after the accommodation.

The surplus areas 906 and 907 can be inserted under the mattress, for example, when the cover structure 950 is placed on the bed 800. For example, in FIG. 1, by forming the cover 900 slightly longer in the stretching direction of the tube, the surplus regions 906 and 907 can be inserted under the mattress. Thereby, the misalignment of the cover structure 950 with respect to the bed 800 can be suppressed. The surplus areas 906 and 907 may be used for other purposes. In addition, only one of the surplus areas 906 and 907 may be provided.

As described above, the cover 900 is located on both sides of the first region 901 in which the tube 910 for sucking the odor associated with excretion can be inserted and the first region 901 in the longitudinal direction, and can accommodate the elastic bodies 933 and 934. It has the second regions 903 and 904 of. Since the first region 901 has a structure that serves as a guide for the tube 910, it is possible to suppress the misalignment of the tube 910 inserted into the first region 901.

Further, in the cover structure 950 in which one end side of the tube 910 is inserted into the first region 901 of the cover 900 and the elastic bodies 933 and 934 are housed in the second region 903, the elastic bodies 933 and the elastic bodies 934 are provided on both sides of the tube 910. Have been placed. Since the tube 910 sandwiched between the elastic body 933 and the elastic body 934 is guided by the opposite side surfaces of the elastic body 933 and the elastic body 934, it is not easily affected by the movement of the patient or the like on the bed. That is, the cover structure 950 suppresses the misalignment of the tube 910, and the tube 910 hardly deviates from the same position.

Further, since the elastic bodies 933 and 934 are arranged on both sides of the tube 910 and the tube 910 is buried between the elastic body 933 and the elastic body 934, the patient or the like on the bed may touch the elastic bodies 933 and 934. However, it is difficult to touch the tube 910. Therefore, the patient or the like on the bed does not have a feeling of foreign matter, and the tube 910 is less likely to be crushed by the patient's buttocks.

Further, in the cover structure 950, since the cover 900, the tube 910, and the elastic bodies 933 and 934 are unitized, even when the sheets are regularly replaced, it is less troublesome to remove and attach the sheets.

Hereinafter, a modified example of the first embodiment will be described. FIG. 5 is a plan view illustrating the cover according to the first modification of the first embodiment. The cover structure 950 is arranged on the bed 800, but when the patient or the like sleeps on the bed 800, the buttocks of the patient or the like are located near the center in the longitudinal direction of the bed 800. Therefore, in order to effectively suck the odor associated with the excretion of the patient, it is preferable that the tube 910 is inserted up to the vicinity of the center in the longitudinal direction of the first region 901 as described above.

In the cover 900A shown in FIG. 5, an insertion restricting portion 901c (stopper) for restricting the insertion of the tube 910 is provided near the center of the first region 901 in the longitudinal direction. The vicinity of the center in the longitudinal direction of the first region 901 is a position corresponding to the buttocks of a person who discharges odor. The insertion restricting portion 901c can be provided, for example, by sewing near the center of the first region 901 in the longitudinal direction.

That is, in the cover 900, the first region 901 penetrates from the insertion port 901a to the insertion port 902b, but in the cover 900A, the first region 901 does not penetrate from the insertion port 901a to the insertion port 902b and is provided near the center. It is divided into two regions by the insertion control unit 901c. The tube 910 can be inserted from either the insertion port 901a or the insertion port 902b until the tip reaches the insertion restriction portion 901c.

By providing the insertion restricting portion 901c as in the cover 900A, the position of the tip of the tube 910 can be used as a guide when the tube 910 is inserted into the first region 901. Therefore, the work of inserting the tube 910 into the first region 901 becomes easy, and the variation in the position of the tip of the tube 910 can be reduced. As a result, the odor associated with the patient's excretion can be stably sucked from the tip of the tube 910.

FIG. 6 is a plan view illustrating the cover according to the second modification of the first embodiment. Referring to FIG. 6, in the cover 900B, pull-out suppressing portions 901d and 901e for suppressing the pull-out of the tube 910 are provided on the insertion ports 901a and 902b side of the first region 901. The pull-out suppressing portions 901d and 901e are arranged in, for example, the surplus regions 906 and 907. Only one of the pull-out suppressing portions 901d and 901e may be provided.

The pull-out suppressing portions 901d and 901e have, for example, a portion inclined with respect to the longest straight line portion of the first region 901. The pull-out suppressing portions 901d and 901e have a structure that prevents the tube 910 from coming off by reducing the component force in the pull-out direction when the force in the direction in which the tube 910 is pulled out is applied to the tube 910.

In the example of FIG. 6, the pull-out suppressing portions 901d and 901e each have a substantially inverted V-shaped bent structure having two inclined portions, but the structure is not limited thereto. For example, the pull-out suppressing portions 901d and 901e may each have a structure having one inclined portion.

Further, instead of the bent structure, a curved structure may be used. In short, when a force is generated in the direction in which the tube 910 is pulled out, the structure may be such that a resistance force is generated against the force. Further, when the insertion port for inserting the tube 910 is determined in advance, only one of the disconnection suppressing portions 901d and 901e may be provided on the insertion port side.

FIG. 7 is a perspective view schematically showing a bed in which the gas information acquisition device according to the third embodiment of the first embodiment is arranged. FIG. 8 is a plan view illustrating the cover according to the modified example 3 of the first embodiment. In FIG. 7, the gas suction / discharge device 1 is not shown.

Referring to FIG. 7, the cover structure 950C is arranged in a part of the area on the sheets 810. The cover structure 950C has a cover 900C ₁ , a tube 910, and elastic bodies 933 and 934. The cover 900C ₁ is a member for positioning the tube 910, can insert one end side of the tube 910, and can accommodate the elastic bodies 933 and 934. The cover structure 950C has one end side of the tube 910 inserted into the cover 900C ₁ and accommodates the elastic bodies 933 and 934.

Referring to FIGS. 7 and 8, in the cover 900C ₁ , both ends of the first region 901 are bent from the horizontal direction of FIG. 8 toward the insertion port 904a, and the insertion ports 901a and 901b are on the same side as the insertion port 904a. Have been placed. The insertion port 901a and the insertion port 901b are arranged symmetrically, for example, with the insertion port 904a interposed therebetween. In order to facilitate bending and insertion of the tube 910 into the first region 901, a part of the first region 901 extending horizontally from the insertion openings 901a and 901b is not sewn.

By changing the positions of the insertion ports 901a and 901b in this way, the other end side of the tube 910 can be brought to the foot side of the bed 800. Thereby, for example, the gas suction / discharge device 1 can be fixed to the side wall of the footboard of the bed 800 with screws or the like. Further, the bent portion of the first region 901 can function as a pull-out suppressing portion for suppressing the pull-out of the tube 910.

As in the cover 900C ₂ shown in FIG. 9, the insertion port 901f may be provided on the insertion port 904a side of the insertion port 901a at a predetermined distance from the insertion port 901a. Similarly, the insertion port 901g may be provided on the insertion port 904a side of the insertion port 901b at a predetermined distance from the insertion port 901b. For example, in FIG. 7, the surplus areas 906 and 907 of the cover 900C ₁ may be inserted under the mattress, but depending on the width of the bed, the insertion port 901a or the insertion port 901b may enter the underside of the mattress and the tube 910. May not be inserted. By providing the insertion ports 901f and 901g inside the insertion ports 901a and 901b, the insertion port of the tube can be prevented from entering the underside of the mattress even in the case of a narrow bed. If necessary, three or more tube insertion ports may be provided on both sides of the insertion port 904a.

The tube 910 does not necessarily have to be stretched in the direction perpendicular to the longitudinal direction of the bed 800. For example, in FIG. 7, the cover structure may be rotated 90 degrees to extend the tube 910 in a direction parallel to the longitudinal direction of the bed 800. The same applies to the cases other than FIG. 7.

FIG. 10 is a perspective view schematically showing a bed in which the gas information acquisition device according to the modified example 4 of the first embodiment is arranged. FIG. 11 is a plan view illustrating the cover according to the modified example 4 of the first embodiment. In FIG. 10, the illustration of the gas suction / discharge device 1 is omitted.

Referring to FIG. 10, the cover structure 950D is arranged in a part of the area on the sheets 810. The cover structure 950D has a cover 900D, a tube 910, and elastic bodies 933 and 934. The cover 900D is a member for positioning the tube 910, can insert one end side of the tube 910, and can accommodate elastic bodies 933 and 934. The cover structure 950D has one end side of the tube 910 inserted into the cover 900D and accommodates the elastic bodies 933 and 934.

Referring to FIGS. 10 and 11, in the cover 900D, the first region 901 is bent from the horizontal direction of FIG. 11 toward the insertion port 903a, and the insertion ports 901a and 901b are on the opposite short sides of the cover 900D. It is arranged on the insertion port 903a side of the center of the short side. The insertion port 901a and the insertion port 901b are arranged symmetrically with the insertion port 903a, for example, interposed therebetween. In order to facilitate bending and insertion of the tube 910 into the first region 901, a part of the first region 901 extending horizontally from the insertion openings 901a and 901b is not sewn.

By changing the positions of the insertion ports 901a and 901b in this way, the other end side of the tube 910 can be brought to the head side of the bed 800. Thereby, for example, the gas suction / discharge device 1 can be fixed to the side wall of the headboard of the bed 800 with screws or the like. Further, the bent portion of the first region 901 can function as a pull-out suppressing portion for suppressing the pull-out of the tube 910.

FIG. 12 is a perspective view schematically showing a bed in which the gas information acquisition device according to the modified example 5 of the first embodiment is arranged. FIG. 13 is a plan view illustrating the cover structure according to the modified example 5 of the first embodiment.

Referring to FIG. 12, the cover structure 950E is arranged in a part of the area on the sheets 810. The cover structure 950E has a cover 900E, tubes 910 and 920, and elastic bodies 933, 934, and 935. The cover 900E is a member for positioning the tube 910, can insert one end side of the tubes 910 and 920, and can accommodate elastic bodies 933, 934, and 935. The cover structure 950E is a cover 900E in which one end side of the tubes 910 and 920 is inserted and the elastic bodies 933, 934, and 935 are housed.

Referring to FIGS. 12 and 13, the cover 900E is, for example, two rectangular cloths arranged one above the other and sewn at the position of the broken line. The cover 900E has first regions 901 and 902 and second regions 903, 904, and 905 separated by sewing. The cover 900E may have the first regions 901 and 902 made of a material having good breathability, and may not be entirely made of cloth.

The first region 901 is an elongated region into which the tube 910 can be inserted. Both ends of the first region 901 serve as insertion ports 901a and 901b when the tube 910 is inserted into the first region 901. The tube 910 can be inserted from any of the insertion ports 901a and 901b. In the examples of FIGS. 12 and 13, the tube 910 is inserted from the insertion port 901a to the vicinity of the center in the longitudinal direction of the first region 901.

The first region 902 is an elongated region into which the tube 920 can be inserted. Both ends of the first region 902 serve as insertion ports 902a and 902b when the tube 920 is inserted into the first region 902. The tube 920 can be inserted from either the insertion port 902a or 902b. In the examples of FIGS. 12 and 13, the tube 920 is inserted from the insertion port 902a to the vicinity of the center in the longitudinal direction of the first region 902.

The second region 903 is a region having a rectangular planar shape that can accommodate the elastic body 933. Further, the second region 904 is a region having a rectangular planar shape that can accommodate the elastic body 934. Further, the second region 905 is a region having a rectangular planar shape that can accommodate the elastic body 935. The second regions 903 and 904 are located on both sides of the first region 901 in the longitudinal direction. In other words, the first region 901 is sandwiched between a pair of second regions 903 and 904. Further, the second regions 904 and 905 are located on both sides of the first region 902 in the longitudinal direction. In other words, the first region 902 is sandwiched between a pair of second regions 904 and 905.

In the second region 903, the vicinity of the central portion of the end portion opposite to the side in contact with the first region 901 is an unsewn region, and the insertion port 903a when the elastic body 933 is inserted into the second region 903. Will be. In the second region 905, the vicinity of the central portion of the end portion opposite to the side in contact with the first region 902 is an unsewn region, and the insertion port 905a when the elastic body 935 is inserted into the second region 905. Will be. The elastic body 934 can be inserted from, for example, the unsewn portion on the side where the insertion openings 901a and 902a are provided, or the unsewn portion on the side where the insertion openings 901b and 902b are provided. In the examples of FIGS. 12 and 13, the elastic body 933 is inserted into the second region 903, the elastic body 934 is inserted into the second region 904, and the elastic body 935 is inserted into the second region 905.

Excess regions may be defined in a part of the first regions 901 and 902 and the second regions 903, 904, and 905. For example, the region in which the elastic bodies 933, 934, and 935 are not inserted becomes a surplus region. For example, in the case of FIG. 13, laterally to the second regions 903, 904, and 905 in the direction in which the tubes 910 and 920 are stretched (on both sides of the region where the elastic bodies 933, 934, and 935 will be inserted). Surplus areas 906 and 907 are defined.

As described above, the number of the first region and the second region is not limited, and the number of the first region and the second region can be arbitrarily determined according to the number of tubes used. Of course, three or more tubes may be used. However, regardless of the number of tubes, the number of the second region is one more than the number of the first region.

FIG. 14 is a perspective view schematically showing a bed in which the gas information acquisition device according to the modified example 6 of the first embodiment is arranged. Referring to FIG. 14, the cover 900 is arranged in a part of the area on the sheets 810 as in FIG. 1, and further, the waterproof sheet 850 is arranged so as to cover the cover 900.

By arranging the waterproof sheet 850 so as to cover the cover 900, even if the bed becomes dirty, the cover 900 can be replaced by replacing the waterproof sheet 850. That is, the frequency of maintenance of the cover 900 can be significantly reduced. The waterproof sheet 850 may have a structure in which a plurality of layers are laminated in order to improve the waterproof performance.

[Gas suction / discharge device 1, tube 910]
Here, the details of the gas suction / discharge device 1, the tube 910, and the like will be described.

FIG. 15 is a partially enlarged perspective view of the vicinity of the case of the gas information acquisition device according to the first embodiment.

In the gas information acquisition device 3, the gas suction / discharge device 1 arranged in the case 300 sucks the gas in the measurement region through the tube 910 whose one end side is inserted into the cover 900, and the sucked gas is sucked and discharged. It is a device that discharges gas toward the sensor 91 (described later) possessed by 1 and acquires gas information (odor, humidity, etc.) with the sensor 91. In this embodiment, the gas to be detected is air.

As shown in FIG. 15, in the gas information acquisition device 3, the gas suction / discharge device 1 is arranged in the inner region 320 of the box-shaped case 300. The case 300 is made of, for example, ABS resin or the like. A plate-shaped upper lid 330 is provided on the case 300, but the illustration is omitted in FIG.

FIG. 16 is a partially enlarged side view of the vicinity of the case of the gas information acquisition device according to the first embodiment. FIG. 17 is a partially enlarged cross-sectional view of the vicinity of the case of the gas information acquisition device according to the first embodiment.

As shown in FIGS. 16 and 17, the tube 910 having one end inserted into the cover 900 is a tubular member having a hollow inside, and the other end is gas suction and discharge through a through hole formed in the wall surface of the case 300. It is connected to a protruding portion 61 (see FIG. 18 or the like described later for details) of the upper case 60 on the suction side of the device 1. The cavity of the tube 910 becomes part of the gas flow path. The tube 910 is made of an elastic material such as rubber or vinyl. The inner and outer diameters of the tube 910 can be appropriately determined as needed, but are, for example, about several mm.

The tube 910 is detachably fixed to the wall surface of the case 300 by fixing members 351, 352, and 353. For example, by making the fixing member 352 and the fixing member 353 screwable, the tube 910 can be easily attached and detached by rotating the fixing member 353. The tube 910 extends from the wall surface of the case 300 onto the bed 800, which is a measurement region for gas information.

The gas information acquisition device 3 is used, for example, in the vicinity of the bed 800 placed in the hospital. For example, consider the case where a patient wearing a diaper is sleeping on the cushion 830 of the bed 800 as a monitored person.

In this case, when the gas suction / discharge device 1 is operated constantly or intermittently in the gas information acquisition device 3, the gas in the vicinity of the patient's buttocks is sucked from the tube 910 inserted in the cover 900. The sucked gas is detected by the sensor 91 of the gas suction / discharge device 1.

By analyzing the detection result of the sensor 91 with an analysis device arranged outside the gas information acquisition device 3, it is possible to reliably acquire information on the air in the vicinity of the patient's buttocks via the tube 910. For example, if an odor sensor is used as the sensor 91, information on the odor of air in the vicinity of the patient's buttocks can be reliably acquired via the tube 910. Further, if a humidity sensor is used as the sensor 91, information on the humidity of the air in the vicinity of the patient's buttocks can be reliably acquired via the tube 910.

For example, by analyzing the odor with an analysis device arranged outside the gas information acquisition device 3, it becomes possible to easily detect that excretion (urination or defecation) has occurred on the bed 800. When the analyzer detects that excretion has occurred on the bed 800, the detection result is transmitted to the nurses and the like in the hospital by voice, flashing light, etc., so that the nurses and the like sleep on the bed 800, for example. You can know when to change the diaper of the patient. As a result, the diaper is changed in a short time from the excreted state, so that the patient is unsanitary for a short time and uncomfortable for a short time. The nurses who change the diapers do not change the diapers that have been left for a long time, so they can be changed smoothly. In addition, hygiene can be ensured.

FIG. 18 is a perspective view illustrating the gas suction / discharge device according to the first embodiment. FIG. 19 is a cross-sectional view illustrating the gas suction / discharge device according to the first embodiment, and shows a vertical cross section obtained by cutting the strain gauge 100 into two in the longitudinal direction through the center of the gas suction / discharge device 1. There is. FIG. 20 is an exploded perspective view illustrating the gas suction / discharge device according to the first embodiment.

Referring to FIGS. 18 to 20, the gas suction / discharge device 1 mainly includes a lower case 10, a micro blower 20, a micro blower support 30, a filter support plate 40, a filter unit 50, and an upper case 60. , A sensor 91, and a strain gauge 100.

The lower case 10, the micro blower 20, the micro blower support 30, the filter support plate 40, the filter unit 50, and the upper case 60 are fixed by screws 70, but they are not adhered to each other. It can be replaced by removing the screw 70 and disassembling the gas suction / discharge device 1.

The gas suction / discharge device 1 is a device that sucks gas from the upper case 60 side and discharges it to the lower case 10 side by driving the piezoelectric element of the microblower 20, and detects odor, moisture, etc. with the sensor 91. be. The gas sucked from the upper case 60 side is discharged to the lower case 10 side via the filter unit 50. By arranging the filter unit 50 on the gas suction side (upper case 60 side) of the micro blower 20, it is possible to prevent dust and the like from entering the inside of the gas suction / discharge device 1.

The gas to be sucked and discharged is typically air, but oxygen, nitrogen, carbon monoxide, hydrogen, carbon dioxide, hydrocarbons, VOCs (Volatile Organic Compounds), formaldehyde, alternative flones, and various types. It may be gas or the like. Various gases include flammable gas, toxic gas, semiconductor material gas, inert gas, city gas, LP gas and the like.

In the present embodiment, for convenience, in the gas suction / discharge device 1, the upper case 60 side is the upper side or one side, and the lower case 10 side is the lower side or the other side. Further, the surface of each part on the upper case 60 side is defined as one surface or upper surface, and the surface on the lower case 10 side is defined as the other surface or lower surface. However, the gas suction / discharge device 1 can be used in an upside-down state, or can be arranged at an arbitrary angle. Further, the planar view refers to viewing the object from the normal direction of the upper surface of the upper case 60, and the planar shape refers to the shape of the object viewed from the normal direction of the upper surface of the upper case 60. ..

[Assembly method of gas suction / discharge device 1]
Next, the details of each component of the gas suction / discharge device 1 will be described through the description of the assembly method of the gas suction / discharge device 1. 21 to 24 are perspective views illustrating the method of assembling the gas suction / discharge device according to the first embodiment.

First, the lower case 10 is prepared as shown on the upper side of the arrow in FIG. As shown in FIGS. 19 and 21, the lower case 10 is a substantially disk-shaped member formed of ABS resin or the like, and a protruding portion 11 projecting to the opposite side of the microblower 20 is formed on the lower surface thereof. A through hole 12A that serves as a flow path for discharging gas and a through hole 12B that guides gas to the resistor 130 of the strain gauge 100 are formed in a portion of the protrusion 11 facing the microblower 20. Further, a gauge mounting portion 17 for fixing the strain gauge 100 is formed on the same side as the protruding portion 11 of the lower case 10.

A recess 13 for positioning the microblower 20 is formed on the upper surface side (the side opposite to the protruding portion 11) of the lower case 10. The recess 13 is provided in a substantially central portion on the upper surface side of the lower case 10, and is provided in the radial direction of the first portion 131 in which the main body 21 of the micro blower 20 is arranged and the upper surface side of the lower case 10, and the micro blower 20 is provided. Includes a second portion 132 in which the external connection terminal 22 of the above is arranged. The first portion 131 and the second portion 132 communicate with each other.

Further, in the first portion 131 of the lower case 10, a substantially semicircular recess 14 communicating with the first portion 131 is formed from the three inner walls excluding the inner wall provided with the second portion 132 to the outside. There is. Further, on the outer peripheral side of the lower case 10, three through holes 15 into which screws for fixing the members are inserted are formed at substantially equal intervals.

Next, as shown on the lower side of the arrow in FIG. 21, the microblower 20 is arranged in the recess 13 provided in the lower case 10. The microblower 20 has a main body 21 and an external connection terminal 22. The main body 21 of the microblower 20 is arranged in the first portion 131 of the recess 13, and the external connection terminal 22 of the microblower 20 is arranged in the second portion 132 of the recess 13. The depth of the recess 13 is formed to be approximately the same as the thickness of the microblower 20. Therefore, the upper surface of the lower case 10 and the upper surface of the micro blower 20 are substantially flush with each other.

Then, the microblower support 30 is inserted into the recesses 23 (counterbore portions) provided in the outer peripheral portions (for example, the four corners) on one side of the microblower 20. The microblower support 30 is a low-load elastic body that is softer than the lower case 10 and the filter support plate 40 and is made of a easily deformable material such as urethane rubber. Examples of the low-load elastic body other than urethane rubber include elastomeric materials, natural rubber, synthetic rubber (silicone rubber, urethane rubber, butyl rubber, isoprene rubber, etc.) and the like. Here, the low-load elastic body is a soft moldable material having elasticity like rubber.

The microblower support 30 is not bonded or the like, and is only inserted into the recess 23. One end of each microblower support 30 projects from the upper surface of the microblower 20.

The tip end side of the external connection terminal 22 of the microblower 20 protrudes from the side surface of the lower case 10, and the piezoelectric element 215a (described later) constituting the microblower 20 and the circuit provided outside the gas suction / discharge device 1 are electrically connected. Enables connection.

The three semicircular recesses 14 located on the outside of the microblower 20 are provided so that the microblower 20 can be easily removed when the microblower 20 is replaced for maintenance or the like. That is, since each recess 14 exposes a part of the side surface of the micro blower 20, the side surface of the micro blower 20 can be pinched and easily removed. The recess 14 may have a shape other than a semicircle as long as the side surface of the microblower 20 can be pinched. Further, the number of recesses 14 does not have to be three as long as the side surface of the microblower 20 can be pinched.

Next, the filter support plate 40 is prepared as shown on the upper side of the arrow in FIG. The filter support plate 40 is a substantially disk-shaped member formed of ABS resin or the like, and a through hole 41 that is a part of a gas flow path is formed in a substantially central portion.

Further, in the filter support plate 40, a recess 42 for positioning the filter unit 50 is formed around the through hole 41. The recess 42 is provided in an annular shape along the outer circumference of the through hole 41, and the filter unit 50 is arranged.

Further, on the outer peripheral side of the filter support plate 40, three through holes 43 into which screws for fixing the members are inserted are formed at substantially equal intervals. The filter support plate 40 is arranged so that the position of each through hole 43 coincides with each through hole 15 of the lower case 10.

Next, as shown on the lower side of the arrow in FIG. 22, the filter support plate 40 is arranged on the lower case 10 and the micro blower 20. The opening 219a (described later) of the microblower 20 is exposed in the through hole 41 of the filter support plate 40.

When the filter support plate 40 is arranged on the lower case 10 and the micro blower 20, the protrusions of the respective micro blower supports 30 are arranged so as to face the lower case 10 with the micro blower 20 in between. It is pushed by and deformed (crushed). As a result, the microblower support 30 presses the microblower 20 toward the lower case 10, so that the microblower 20 is stably held in the recess 13 of the lower case 10.

Next, as shown on the upper side of the arrow in FIG. 23, the filter unit 50 is prepared. Then, as shown on the lower side of the arrow in FIG. 23, the filter unit 50 is arranged in the recess 42 for positioning the filter unit 50 provided on the filter support plate 40. The outer peripheral portion of the filter unit 50 is arranged in the recess 42.

The depth of the recess 42 is formed to be about the same as the thickness of the filter unit 50. Therefore, the upper surface of the filter support plate 40 and the upper surface of the filter unit 50 are substantially flush with each other.

The filter unit 50 is only positioned in the recess 42 of the filter support plate 40, and is not fixed by an adhesive or the like. That is, since the filter unit 50 is held by the filter support plate 40, which is a filter holding member, in a detachable state, it can be easily replaced by disassembling the gas suction / discharge device 1.

Next, as shown on the upper side of the arrow in FIG. 24, the upper case 60 is prepared. As shown in FIGS. 19 and 24, the upper case 60 is a substantially disk-shaped member formed of ABS resin or the like, and a protruding portion 61 projecting to the opposite side of the filter unit 50 is formed in a substantially central portion of the upper surface. Has been done. A through hole 62 that serves as a flow path for sucking gas is formed in a substantially central portion of the protrusion 61. The tip end side of the protrusion 61 is chamfered, for example, into a truncated cone shape.

Three recesses 63 (counterbore portions) arranged at substantially equal intervals are formed on the outer peripheral side of the upper surface of the upper case 60, and screws for fixing each member are inserted into each recess 63. Three through holes 64 are formed.

Next, as shown on the lower side of the arrow in FIG. 24, the upper case 60 is arranged on the filter support plate 40 and the filter unit 50, and the screw 70 is inserted into each through hole 64. The screw 70 is inserted into, for example, the through hole 64 of the upper case 60, the through hole 43 of the filter support plate 40, and the through hole 15 of the lower case 10 and protrudes from the lower surface of the lower case 10 to the lower surface side of the lower case 10. It is fixed by a nut. This completes the gas suction / discharge device 1.

Finally, it is preferable to fill the gap formed in the vicinity of the external connection terminal 22 of the microblower 20 with an adhesive or the like. This is to prevent the gas inside the gas suction / discharge device 1 from leaking to the outside and to prevent dust and the like from entering the inside of the gas suction / discharge device 1.

[Micro blower 20]
Next, the micro blower 20 will be described. FIG. 25 is a plan view illustrating the microblower of the gas suction / discharge device according to the first embodiment. FIG. 26 is a cross-sectional view illustrating the microblower of the gas suction / discharge device according to the first embodiment, and shows a cross section along the line BB of FIG. 25.

Referring to FIGS. 25 and 26, the microblower 20 is a device that drives a piezoelectric element to suck and discharge gas, and has a main body 21 and an external connection terminal 22. The size of the main body 21 is, for example, about 20 mm in length × 20 mm in width × 2 mm in height.

The main body 21 has an outer case 211 and an inner case 212. The outer case 211 covers the outside of the inner case 212 in a non-contact manner with a predetermined gap. The outer case 211 has a cylindrical hollow portion 211a having an open upper portion, and a circular inner case 212 is housed in the hollow portion 211a with a predetermined gap.

The inner case 212 is elastically supported by the outer case 211 via, for example, a spring connecting portion 214. A gas inflow passage 217a is formed between the outer case 211 and the inner case 212. A plurality of spring connecting portions 214 are provided between the inner wall portion of the outer case 211 and the outer wall portion of the inner case 212 at intervals in the circumferential direction (four in the examples of FIGS. 25 and 26).

The upper part of the inner case 212 is open, the diaphragm 215 is fixed so as to close the opening of the inner case 212, and the first blower chamber 216 is formed between the inner case 212 and the diaphragm 215. The diaphragm 215 has, for example, a unimorph structure in which a piezoelectric element 215a made of piezoelectric ceramic is attached to the central portion of a diaphragm 215b made of a thin elastic metal plate. By applying a voltage of a predetermined frequency to the piezoelectric element 215a, the entire diaphragm 215 is resonantly driven in the bending mode. The piezoelectric element 215a is fixed to, for example, the surface of the diaphragm 215b opposite to the first blower chamber 216 side.

In the inner case 212, the wall portion 212a facing the diaphragm 215 constitutes one wall surface of the first blower chamber 216. A through hole 212b is formed in a portion of the wall portion 212a facing the central portion of the diaphragm 215 to communicate the inside and the outside of the first blower chamber 216. A wall portion 211b is provided at a portion of the outer case 211 facing the wall portion 212a, and a through hole 211c is formed at a central portion of the wall portion 211b, that is, a portion facing the through hole 212b. The through hole 211c serves as a gas discharge port. A predetermined inflow space 217b is formed between the wall portion 211b and the wall portion 212a, and the inflow space 217b constitutes a part of the above-mentioned inflow passage 217a. The inflow space 217b has a role of guiding the gas introduced from the inflow passage 217a to the vicinity of the through holes 212b and 211c.

On the upper surface side of the outer case 211, that is, on the side opposite to the first blower chamber 216 via the diaphragm 215, a wall portion 219 for forming the second blower chamber 218 with the diaphragm 215 is provided. .. The wall portion 219 is, for example, a lid member fixed so as to close the opening at the upper end portion of the outer case 211. An opening 219a is formed in the central portion of the wall portion 219 to allow the outside and the second blower chamber 218 to communicate with each other.

The volume of the second blower chamber 218 and the opening area of the opening 219a are set so that a pseudo resonance space can be formed with the vibration of the diaphragm 215. The second blower chamber 218 and the inflow passage 217a are interconnected. Therefore, the gas that has flowed into the second blower chamber 218 through the opening 219a is supplied to the inflow space 217b through the inflow passage 217a.

In the micro blower 20, when an AC voltage having a predetermined frequency is applied to the piezoelectric element 215a via the external connection terminal 22, the diaphragm 215 is resonantly driven, and the volume of the first blower chamber 216 changes periodically. When the volume of the first blower chamber 216 increases, the air in the inflow space 217b is sucked into the first blower chamber 216 through the through hole 212b. On the contrary, when the volume of the first blower chamber 216 is reduced, the air in the first blower chamber 216 is discharged to the inflow space 217b through the through hole 212b.

Since the diaphragm 215 is driven at a high frequency, the high-speed, high-energy gas flow discharged from the through hole 212b to the inflow space 217b passes through the inflow space 217b and is discharged from the through hole 211c. At this time, the surrounding gas in the inflow space 217b is discharged from the through hole 211c while being entrained. Therefore, a continuous gas flow is generated from the inflow passage 217a toward the inflow space 217b, and the gas is continuously discharged as a jet flow from the through hole 211c. The flow of gas is shown by an arrow in FIG.

[Filter unit 50]
Next, the filter unit 50 will be described. FIG. 27 is an exploded perspective view illustrating the filter unit of the gas suction / discharge device according to the first embodiment. Referring to FIG. 27, the filter unit 50 has a filter support 51, a filter 52, and a filter support 55. These members are fixed to each other by, for example, double-sided tapes arranged on the outer periphery between the members in the order shown in the figure. The double-sided tape may have the same shape as the filter support 51, for example.

The filter supports 51 and 55 are members that hold the filter 52 from both sides, and are formed of, for example, a polyimide film. The filter support 51 side is the gas suction side, and the filter support 55 side is the gas discharge side. The filter supports 51 and 55 may be provided as needed. For example, if the strength of the filter unit 50 is sufficient, one or both of the filter supports 51 and 55 may not be provided.

The filter 52 is a member that prevents dust and the like from entering the inside of the gas suction and discharge device 1, and preferably can remove dust and dirt at the submicron level. The filter 52 can be formed of, for example, polyester, polyethylene, rayon, polypropylene, or the like, but any material may be used as long as it has the above functions.

[Strain gauge 100]
Next, the strain gauge 100 will be described. FIG. 28 is a plan view illustrating the strain gauge according to the first embodiment. FIG. 29 is a cross-sectional view (No. 1) illustrating the strain gauge according to the first embodiment, and shows a cross-sectional view taken along the line CC of FIG. 28. Referring to FIGS. 28 and 29, the strain gauge 100 has a base material 110, a resistor 130, a wiring 140, and a terminal portion 150.

As shown in FIG. 19 described above, the strain gauge 100 is fixed to the lower surface of the protrusion 11 with double-sided tape, an adhesive or the like so that the resistor 130 is exposed in the through hole 12B, and further to the gauge mounting portion 17. It is fixed with a screw 71. The terminal portion 150 of the strain gauge 100 projects from the side surface of the lower case 10 and enables an electrical connection between the strain gauge 100 and a circuit provided outside the gas suction / discharge device 1. The base material 110 of the strain gauge 100 also serves as a strain-causing body.

The base material 110 is a member that serves as a base layer for forming the resistor 130 and the like, and has flexibility. The thickness of the base material 110 is not particularly limited and may be appropriately selected depending on the intended purpose, but may be, for example, about 5 μm to 500 μm. In particular, when the thickness of the base material 110 is 5 μm to 200 μm, strain transmission from the surface of the strain-causing body 54 bonded to the lower surface of the base material 110 via double-sided tape or the like, and dimensional stability with respect to the environment. It is preferable in terms of insulation, and 10 μm or more is more preferable in terms of insulating properties.

The base material 110 is, for example, PI (polyethylene) resin, epoxy resin, PEEK (polyetheretherketone) resin, PEN (polyethylenenaphthalate) resin, PET (polyethylene terephthalate) resin, PPS (polyphenylene sulfide) resin, polyolefin resin and the like. It can be formed from the insulating resin film of. The film is a member having a thickness of about 500 μm or less and having flexibility.

Here, "forming from an insulating resin film" does not prevent the base material 110 from containing a filler, impurities, or the like in the insulating resin film. The base material 110 may be formed of, for example, an insulating resin film containing a filler such as silica or alumina.

Materials other than the resin of the base material 110 include, for example, SiO ₂ , ZrO ₂ (including YSZ), Si, Si ₂ N ₃ , Al ₂ O ₃ (including sapphire), ZnO, and perovskite ceramics (CaTIO ₃ ,). BaTIO ₃ ) and the like can be mentioned. Further, as the material of the base material 110, a metal such as aluminum, an aluminum alloy (duralumin), or titanium may be used. In this case, for example, an insulating film is formed on the metal base material 110.

The resistor 130 is a thin film formed on the base material 110 in a predetermined pattern, and is a sensitive portion that undergoes strain to cause a change in resistance. The predetermined pattern is, for example, a pattern that folds back in a zigzag pattern. The resistor 130 may be formed directly on the upper surface 110a of the base material 110, or may be formed on the upper surface 110a of the base material 110 via another layer. In FIG. 28, the resistor 130 is shown in a satin pattern for convenience.

The resistor 130 can be formed from, for example, a material containing Cr (chromium), a material containing Ni (nickel), or a material containing both Cr and Ni. That is, the resistor 130 can be formed from a material containing at least one of Cr and Ni. Examples of the material containing Cr include a Cr mixed phase film. Examples of the material containing Ni include Cu—Ni (copper nickel). Examples of the material containing both Cr and Ni include Ni—Cr (nickel chromium).

Here, the Cr mixed phase film is a film in which Cr, CrN, Cr 2N and the like _are mixed. The Cr mixed phase film may contain unavoidable impurities such as chromium oxide.

The thickness of the resistor 130 is not particularly limited and may be appropriately selected depending on the intended purpose, but may be, for example, about 0.05 μm to 2 μm. In particular, when the thickness of the resistor 130 is 0.1 μm or more, the crystallinity of the crystals constituting the resistor 130 (for example, the crystallinity of α-Cr) is improved, and when it is 1 μm or less, the resistor is preferable. It is more preferable in that cracks in the film and warpage from the base material 110 due to the internal stress of the film constituting 130 can be reduced.

For example, when the resistor 130 is a Cr mixed phase film, the stability of the gauge characteristics can be improved by using α-Cr (alpha chromium), which is a stable crystal phase, as a main component. Further, since the resistor 130 contains α-Cr as a main component, the gauge ratio of the strain gauge 100 is 10 or more, and the gauge coefficient temperature coefficient TCS and the resistance temperature coefficient TCR are within the range of −1000 ppm / ° C. to + 1000 ppm / ° C. Can be. Here, the main component means that the target substance occupies 50% by mass or more of all the substances constituting the resistor, but from the viewpoint of improving the gauge characteristics, the resistor 130 contains 80% by weight of α-Cr. It is preferable to include the above. In addition, α-Cr is Cr of a bcc structure (body-centered cubic lattice structure).

Wiring 140 is connected to both ends of the resistor 130, and each wiring 140 is connected to a pair of terminal portions 150. For example, in a plan view, the terminal portion 150 is wider than the wiring 140 and is formed in a substantially rectangular shape. The terminal portion 150 is a pair of electrodes for outputting a change in the resistance value of the resistor 130 caused by strain to the outside, and for example, a lead wire for external connection is joined.

The wiring 140 and the terminal portion 150 can be integrally formed of, for example, the same material as the resistor 130 in the same process as the resistor 130. A conductor layer (for example, copper or the like) having a resistance lower than that of the resistor 130 may be provided on the upper surface of the terminal portion 150. Further, the upper surface of the terminal portion 150 may be covered with a metal (for example, copper, gold, etc.) having better solderability than the terminal portion 150.

A cover layer (insulating resin layer) may be provided on the upper surface 110a of the base material 110 so as to cover the resistor 130 and the wiring 140 and expose the terminal portion 150. By providing the cover layer, it is possible to prevent mechanical damage and the like from occurring in the resistor 130 and the wiring 140. Further, by providing the cover layer, the resistor 130 and the wiring 140 can be protected from moisture and the like. The cover layer may be provided so as to cover the entire portion excluding the terminal portion 150.

The cover layer can be formed of, for example, an insulating resin such as PI resin, epoxy resin, PEEK resin, PEN resin, PET resin, PPS resin, and composite resin (for example, silicone resin and polyolefin resin). The cover layer may contain a filler or a pigment. The thickness of the cover layer is not particularly limited and may be appropriately selected depending on the intended purpose, but may be, for example, about 2 μm to 30 μm.

In order to manufacture the strain gauge 100, first, the base material 110 is prepared, and the planar shape resistor 130, the wiring 140, and the terminal portion 150 shown in FIG. 28 are formed on the upper surface 110a of the base material 110. The materials and thicknesses of the resistor 130, the wiring 140, and the terminal portion 150 are as described above. The resistor 130, the wiring 140, and the terminal portion 150 can be integrally formed of the same material.

The resistor 130, the wiring 140, and the terminal portion 150 are formed, for example, by a magnetron sputtering method targeting a raw material capable of forming the resistor 130, the wiring 140, and the terminal portion 150, and are patterned by photolithography. Can be formed. The resistor 130, the wiring 140, and the terminal portion 150 may be formed into a film by a reactive sputtering method, a vapor deposition method, an arc ion plating method, a pulse laser deposition method, or the like, instead of the magnetron sputtering method.

From the viewpoint of stabilizing the gauge characteristics, before forming the resistor 130, the wiring 140, and the terminal portion 150, the film thickness is 1 nm or more on the upper surface 110a of the base material 110 as a base layer, for example, by a conventional sputtering method. It is preferable to form a functional layer having a thickness of about 100 nm in a vacuum. After forming the resistor 130, the wiring 140, and the terminal portion 150 on the entire upper surface of the functional layer, the functional layer is patterned in the planar shape shown in FIG. 28 together with the resistor 130, the wiring 140, and the terminal portion 150 by photolithography. Will be done.

In the present application, the functional layer refers to a layer having a function of promoting crystal growth of at least the upper layer of the resistor 130. It is preferable that the functional layer further has a function of preventing oxidation of the resistor 130 by oxygen and moisture contained in the base material 110 and a function of improving the adhesion between the base material 110 and the resistor 130. The functional layer may further have other functions.

Since the insulating resin film constituting the base material 110 contains oxygen and water, particularly when the resistor 130 contains Cr, Cr forms a self-oxidizing film, so that the functional layer has a function of preventing oxidation of the resistor 130. It is effective to prepare.

The material of the functional layer is not particularly limited as long as it has a function of promoting crystal growth of the resistor 130, which is at least the upper layer, and can be appropriately selected depending on the intended purpose. For example, Cr (chromium), Ti ( Titanium), V (vanadium), Nb (niob), Ta (tantal), Ni (nickel), Y (ittrium), Zr (zylonium), Hf (hafnium), Si (silicon), C (carbon), Zn ( Zinc), Cu (copper), Bi (bismuth), Fe (iron), Mo (molybdenum), W (tungsten), Ru (lutenium), Rh (lodium), Re (renium), Os (osmium), Ir ( One or more selected from the group consisting of iridium), Pt (platinum), Pd (palladium), Ag (silver), Au (gold), Co (cobalt), Mn (manganese), Al (aluminum). Examples include metals, alloys of any of the metals in this group, or compounds of any of the metals in this group.

Examples of the above alloy include FeCr, TiAl, FeNi, NiCr, CrCu and the like. Examples of the above _{-mentioned compound include TiN, TaN, Si 3N 4, TiO 2, Ta 2 O 5, SiO 2 , and the like .}

The functional layer can be formed into a vacuum by, for example, a conventional sputtering method in which Ar (argon) gas is introduced into a chamber, targeting a raw material capable of forming the functional layer. By using the conventional sputtering method, the functional layer is formed while etching the upper surface 110a of the base material 110 with Ar, so that the film forming amount of the functional layer can be minimized and the adhesion improving effect can be obtained.

However, this is an example of a method for forming a functional layer, and the functional layer may be formed by another method. For example, the effect of improving adhesion is obtained by activating the upper surface 110a of the base material 110 by plasma treatment using Ar or the like before the film formation of the functional layer, and then the functional layer is vacuum-deposited by the magnetron sputtering method. You may use the method of

The combination of the material of the functional layer and the material of the resistor 130, the wiring 140, and the terminal portion 150 is not particularly limited and may be appropriately selected depending on the intended purpose. For example, Ti is used as the functional layer, and the resistor 130, A Cr mixed-phase film containing α-Cr (alpha chromium) as a main component can be formed as the wiring 140 and the terminal portion 150.

In this case, for example, the resistor 130, the wiring 140, and the terminal portion 150 can be formed into a film by a magnetron sputtering method in which Ar gas is introduced into the chamber, targeting a raw material capable of forming a Cr mixed film. Alternatively, pure Cr may be targeted, an appropriate amount of nitrogen gas may be introduced into the chamber together with Ar gas, and the resistor 130, the wiring 140, and the terminal portion 150 may be formed into a film by the reactive sputtering method.

In these methods, the growth surface of the Cr mixed film is defined by the functional layer made of Ti, and a Cr mixed film containing α-Cr as a main component, which has a stable crystal structure, can be formed. Further, the gauge characteristics are improved by diffusing Ti constituting the functional layer into the Cr mixed phase film. For example, the gauge ratio of the strain gauge 100 can be 10 or more, and the gauge ratio temperature coefficient TCS and the resistance temperature coefficient TCR can be in the range of −1000 ppm / ° C. to + 1000 ppm / ° C. When the functional layer is formed of Ti, the Cr mixed phase film may contain Ti or TiN (titanium nitride).

When the resistor 130 is a Cr mixed film, the functional layer made of Ti has a function of promoting crystal growth of the resistor 130 and a function of preventing oxidation of the resistor 130 by oxygen or moisture contained in the base material 110. , And all the functions of improving the adhesion between the base material 110 and the resistor 130. The same applies when Ta, Si, Al, or Fe is used instead of Ti as the functional layer.

By providing the functional layer under the resistor 130 in this way, the crystal growth of the resistor 130 can be promoted, and the resistor 130 having a stable crystal phase can be produced. As a result, the stability of the gauge characteristics can be improved in the strain gauge 100. Further, the material constituting the functional layer diffuses into the resistor 130, so that the gauge characteristics of the strain gauge 100 can be improved.

After forming the resistor 130, the wiring 140, and the terminal portion 150, if necessary, the upper surface 110a of the base material 110 is provided with a cover layer that covers the resistor 130 and the wiring 140 and exposes the terminal portion 150 to distort the strain. Gauge 100 is completed. The cover layer is, for example, laminated on the upper surface 110a of the base material 110 with a thermosetting insulating resin film in a semi-cured state so as to cover the resistor 130 and the wiring 140 and expose the terminal portion 150, and heat and cure. Can be made. The cover layer is formed by coating the upper surface 110a of the base material 110 with the resistor 130 and the wiring 140, applying a liquid or paste-like thermosetting insulating resin so as to expose the terminal portion 150, and heating and curing the cover layer. It may be produced.

When the functional layer is provided on the upper surface 110a of the base material 110 as the base layer of the resistor 130, the wiring 140, and the terminal portion 150, the strain gauge 100 has the cross-sectional shape shown in FIG. The layer indicated by reference numeral 120 is a functional layer. The planar shape of the strain gauge 100 when the functional layer 120 is provided is the same as that in FIG. 28.

[Sensor 91]
In the gas suction / discharge device 1, the wiring board 92 on which the sensor 91 is mounted is fixed to the lower case 10 by screws 94 via a plurality of columnar spacers 93.

The sensor 91 is arranged on the gas discharge side of the microblower 20 and has a function of acquiring gas information. In the present embodiment, the sensor 91 is arranged on the gas discharge side with respect to the protruding portion 11 of the lower case 10, and acquires information on the gas discharged from the through hole 12A. The diameter of the through hole 12A may be expanded so that the sensor 91 is arranged in the through hole 12A. In this case, since the side surface of the sensor 91 is surrounded by the inner wall of the through hole 12A, the power of the sensor 91 can be improved. Further, two or more through holes may be provided for the sensor 91 to acquire gas information.

The sensor 91 is, for example, an odor sensor that detects the odor of gas as information on the gas discharged from the through hole 12A. As the odor sensor, for example, a well-known sensor such as a semiconductor type or a crystal oscillator type can be used. The sensor 91 may be a humidity sensor, a temperature sensor, or another sensor.

The wiring board 92 is a resin substrate such as a glass epoxy board, a silicon substrate, a ceramic substrate, or the like, on which a wiring pattern, a land for mounting components, or the like is formed. The wiring board 92 is provided with a connector, a wire, or the like that inputs / outputs signals to / from the outside of the gas suction / discharge device 1. A circuit for driving the piezoelectric element 215a, an analog front end connected to the terminal portion 150 of the strain gauge 100, or the like may be mounted on the wiring board 92. The analog front end may include, for example, a bridge circuit, an amplifier, an analog / digital conversion circuit (A / D conversion circuit), and the like. The analog front end may include a temperature compensation circuit.

By mounting the sensor 91 as in the gas suction / discharge device 1, the odor and humidity of the gas can be easily detected.

As described above, since the gas suction / discharge device 1 uses a microblower that drives a piezoelectric element to suck and discharge gas, it can be made smaller than a pump that drives a conventional motor or the like. As a result, the gas information acquisition device 3 whose main part is the gas suction / discharge device 1 can be miniaturized.

Further, since the gas suction / discharge device 1 uses only one tube, the number of microblowers to be connected, other parts to be used, and electric circuits can be reduced, so that the gas information acquisition device 3 can be miniaturized. Become. Further, by downsizing the gas information acquisition device 3, the degree of freedom in the installation location of the gas information acquisition device 3 is also improved.

Further, since the gas suction / discharge device 1 uses only one tube, the amount (length) of the tube used can be significantly reduced as compared with the conventional device that uses about 6 tubes. It is possible and there is a price advantage.

Further, since the gas suction / discharge device 1 uses only one tube, the configuration of the gas suction / discharge device 1 is simple, and maintenance is easy.

Further, the gas suction / discharge device 1 has a filter unit 50 on the suction side, and the strain gauge 100 can detect clogging of the filter 52 (gas suction amount). Further, the state of the tube 910 can be detected by the strain gauge 100. The state of the tube 910 is that the tube 910 is crushed or bent, the hole is closed, or the like.

That is, the strain gauge 100 is loaded by the gas sucked by the microblower 20. As a result, the strain gauge 100 is deformed, and the resistance value of the resistor 130 of the strain gauge 100 changes. By measuring the change in the resistance value of the resistor 130 via the wiring 140 and the terminal portion 150, the clogging state of the filter 52 and the state of the tube 910 can be detected.

That is, when the filter 52 is clogged or the tube 910 is crushed or bent, the suction force is reduced, so that the load applied from the gas to the resistor 130 of the strain gauge 100 through the through hole 12B is reduced. The resistance value of the resistor 130 becomes smaller. Therefore, the strain gauge 100 can accurately detect clogging of the filter 52, crushing and bending of the tube 910, and the like based on the change in the resistance value of the resistor 130. For example, when the resistance value of the strain gauge 100 is equal to or less than a predetermined threshold value, it is possible to determine whether the filter 52 is clogged, the tube 910 is crushed, or bent. By monitoring the clogged state of the filter 52 and the crushing and bending of the tube 910, it is possible to constantly suck and discharge an appropriate gas, and it is possible to accurately detect the presence or absence of excrement.

Further, in the gas suction / discharge device 1, since the lower case 10 is provided with a recess 14 that exposes the side surface of the microblower 20, the microblower 20 can be easily removed when the microblower 20 is replaced for maintenance or the like. be.

Further, the microblower 20 uses the piezoelectric element 215a to move the gas, but since it is very delicate, the microblower 20 cannot obtain accurate operation when a load is applied to other than the outer peripheral portion. Therefore, in the gas suction / discharge device 1, the microblower 20 is fixed by inserting the microblower support 30, which is a low-load elastic body, into the recesses 23 provided in the outer peripheral portions (for example, the four corners) of the microblower 20. Is going. As a result, it is possible to reduce the possibility that the microblower 20 is stressed and the operation of the piezoelectric element 215a is affected, and the microblower 20 can be operated accurately.

Further, if the micro blower 20 is attached to the lower case 10 using double-sided tape, problems such as diagonal attachment and protrusion of the double-sided tape may occur at the time of attachment, and the performance may be destroyed when the micro blower 20 is replaced. Is not desirable because it is possible. By fixing the microblower 20 using the microblower support 30, it is possible to avoid the occurrence of such a problem.

Further, although the microblower support 30 once attached cannot be reused by fixing with double-sided tape or an adhesive, the microblower support 30 can be fixed by inserting the microblower support 30, which is a low-load elastic body, into the recess 23. Can be reused.

Further, when a Cr mixed phase film capable of obtaining a high gauge ratio is used as the material of the resistor 130 of the strain gauge 100, clogging of the filter 52, crushing and bending of the tube 910, and the like can be detected with high sensitivity.

<Second Embodiment>
In the second embodiment, an example of a gas information acquisition device including a gas suction / discharge device having a plurality of micro blowers is shown. In the second embodiment, the description of the same component as that of the above-described embodiment may be omitted.

FIG. 31 is a perspective view illustrating the gas suction / discharge device according to the second embodiment. FIG. 32 is a cross-sectional view illustrating the gas suction / discharge device according to the first embodiment, which is a longitudinal section obtained by cutting the strain gauge 100 into two in the longitudinal direction through the center of the gas suction / discharge device 1A. Shows a face.

The gas information acquisition device 3 may have a gas suction / discharge device 1A instead of the gas suction / discharge device 1. Referring to FIGS. 31 and 32, the gas suction / discharge device 1A has a point having four microblowers 20 as a gas suction / discharge device 1 having one microblower 20 (see FIGS. 18, 19, etc.). It's different. The gas suction / discharge device 1A includes a lower case 10, four microblowers 20, a microblower support 30, a filter support plate 40, a filter unit 50, an upper case 60, and three microblower cases 80. have.

Next, the details of each component of the gas suction / discharge device 1A will be described through the description of the assembly method of the gas suction / discharge device 1A. 33 and 34 are perspective views illustrating the method of assembling the gas suction / discharge device according to the second embodiment.

First, the same assembly as in FIG. 21 of the first embodiment is performed, and the first microblower 20 is arranged in the recess 13 of the lower case 10. Next, as shown on the upper side of the arrow in FIG. 33, the micro blower case 80 is prepared, and as shown on the lower side of the arrow in FIG. 33, on the lower case 10 in which the first micro blower 20 is arranged in the recess 13. The micro blower case 80 is arranged in the space.

The microblower case 80 is a substantially disk-shaped member formed of ABS resin or the like, except that a protrusion 11 is not formed and a through hole 82 is provided in place of the through holes 12A and 12B. It has the same structure as the lower case 10. However, the thickness of the micro blower case 80 may be thicker than that of the lower case 10.

A recess 83 for positioning the microblower 20 is formed on the upper surface side of the microblower case 80. The recess 83 is provided in a substantially central portion on the upper surface side of the micro blower case 80, and is provided in the radial direction of the first portion 831 on which the main body 21 of the micro blower 20 is arranged and the upper surface side of the micro blower case 80. It includes a second portion 832 in which the external connection terminal 22 of the blower 20 is arranged. The first part 831 and the second part 832 communicate with each other. A through hole 82, which serves as a flow path for discharging gas, is formed in a substantially central portion of the first portion 831.

Further, in the first portion 831 of the microblower case 80, a substantially semicircular recess 84 communicating with the first portion 831 is formed from the three inner walls excluding the inner wall provided with the second portion 832 toward the outside. ing. Further, on the outer peripheral side of the microblower case 80, three through holes 85 into which screws for fixing the members are inserted are formed at substantially equal intervals.

Next, as shown on the upper side of the arrow in FIG. 34, the second microblower 20 is arranged in the recess 83 of the microblower case 80. The main body 21 of the microblower 20 is arranged in the first portion 831 of the recess 83, and the external connection terminal 22 of the microblower 20 is arranged in the second portion 832 of the recess 83. The depth of the recess 83 is formed to be approximately the same as the thickness of the microblower 20. Therefore, the upper surface of the microblower case 80 and the upper surface of the microblower 20 are substantially flush with each other.

Then, as shown on the lower side of the arrow in FIG. 34, the microblower support 30 is inserted into the recess 23 on the outer peripheral portion of the microblower 20. The microblower support 30 is not bonded or the like, and is only inserted into the recess 23. One end of each microblower support 30 projects from the upper surface of the microblower 20.

The tip end side of the external connection terminal 22 of the microblower 20 protrudes from the side surface of the microblower case 80 to electrically connect the piezoelectric element 215a constituting the microblower 20 and the circuit provided outside the gas suction / discharge device 1A. Make it possible.

The three semicircular recesses 84 located on the outside of the microblower 20 are provided so that the microblower 20 can be easily removed when the microblower 20 is replaced for maintenance or the like. That is, since each recess 84 exposes a part of the side surface of the micro blower 20, the side surface of the micro blower 20 can be pinched and easily removed. The recess 84 may have a shape other than a semicircle as long as the side surface of the microblower 20 can be pinched.

Further, in the same manner as in FIG. 33, the second microblower case 80 is arranged on the first microblower case 80 in which the second microblower 20 is arranged in the recess 83. Then, in the same manner as in FIG. 34, the third microblower 20 is arranged in the recess 83 of the second microblower case 80.

Further, in the same manner as in FIG. 33, the third microblower case 80 is arranged on the second microblower case 80 in which the third microblower 20 is arranged in the recess 83. Then, in the same manner as in FIG. 34, the fourth microblower 20 is arranged in the recess 83 of the third microblower case 80.

Next, in the same manner as in FIGS. 22 to 24 of the first embodiment, the filter support plate 40 and the filter unit are placed on the third microblower case 80 in which the fourth microblower 20 is arranged in the recess 83. 50 and the upper case 60 are sequentially arranged and fixed with screws 70. This completes the gas suction / discharge device 1A.

Finally, it is preferable to fill the gap formed in the vicinity of the external connection terminal 22 of each microblower 20 with an adhesive or the like. This is to prevent the gas inside the gas suction / discharge device 1A from leaking to the outside and to prevent dust and the like from entering the inside of the gas suction / discharge device 1A.

As described above, in the gas suction / discharge device 1A, the number of microblowers 20 is increased, so that the suction / discharge force is improved. In the present embodiment, four microblowers 20 are arranged in series with the gas suction direction and the gas discharge direction aligned, but the number of microblowers 20 may be two, three, or five or more. not. As the number of micro blowers 20 increases, the suction / discharge force can be improved. Therefore, when the gas suction / discharge device 1A is used for the gas information acquisition device 3, the number of microblowers 20 may be selected so as to satisfy the suction / discharge force required for the gas information acquisition device 3. Since the micro blower 20 is originally small, it has almost no effect on the overall size of the case 300.

Further, in the gas suction / discharge device 1A, as in the gas suction / discharge device 1, the filter unit 50 is arranged on the gas suction side of any of the microblowers 20, so that dust, dust, etc. can be collected from the gas suction / discharge device 1A. It is possible to prevent it from getting inside. Further, similarly to the gas suction / discharge device 1, the strain gauge 100 can detect a clogged state of the filter 52, a crushed or bent state of the tube 910, and the like. By monitoring the clogged state of the filter 52 and the crushing and bending of the tube 910, it is possible to constantly suck and discharge the appropriate gas.

Further, in the gas suction / discharge device 1A, since the lower case 10 and each microblower case 80 are provided with recesses that expose the side surfaces of the microblower 20, the microblower 20 is replaced when the microblower 20 is replaced for maintenance or the like. 20 is easy to remove.

Further, in the gas suction / discharge device 1A, similarly to the gas suction / discharge device 1, the microblower 20 is fixed, and the microblower support 30 which is a low-load elastic body is provided in the recess 23 provided in the outer peripheral portion of the microblower 20. It is done by inserting. This enables accurate operation of the microblower 20.

Further, when fixing the double-sided tape or adhesive, the microblower support 30 once attached cannot be reused, but the microblower support 30 can be fixed by inserting the microblower support 30 which is a low-load elastic body into the recess 23. Can be reused.

<Third Embodiment>
In the second embodiment, an example of a gas information acquisition device in which a gas suction / discharge device is integrated with a deodorizing unit or the like is shown. In the third embodiment, the description of the same component as that of the above-described embodiment may be omitted.

FIG. 35 is a perspective view illustrating the gas information acquisition device according to the second embodiment. In FIG. 35, the illustration of the upper lid of the housing 400 is omitted.

As shown in FIG. 35, the gas information acquisition device 3A has a gas suction / discharge device 1A and a cover structure 950. However, in FIG. 35, the cover structure 950 is not shown except for the other end side of the tube 910. In the gas information acquisition device 3A, the gas suction / discharge device 1A, the deodorizing unit 410, and the circuit board 420 are housed in the same housing 400.

The housing 400 is made of, for example, a resin or a metal plate. The size of the housing 400 can be, for example, about 180 mm in length × 90 mm in width × 50 mm in height. However, by downsizing the circuit board 420, it is possible to reduce the size in the vertical direction to about 1/3 and in the height direction to about 1/2. The housing 400 is provided with a through hole 400x for discharging gas to the outside. In this embodiment, the sensor 91 is an odor sensor.

The deodorizing unit 410 is provided to eliminate the odor of the gas sucked by the gas suction / discharging device 1A via the tube 910 and discharged to the sensor 91 side. As the deodorizing unit 410, for example, activated carbon that adsorbs / absorbs and removes an unpleasant odor, a bio-deodorant for biological treatment, a deodorant (fragrance) that changes an unpleasant odor into a gentle odor, or the like is used. be able to. The biological treatment is a treatment in which microorganisms take in malodorous substances and malodorous components, which are the sources of odors, oxidatively decompose them, and convert them into energy in order to survive.

The circuit board 420 may be provided with, for example, a power supply circuit for supplying the microblower 20, a circuit connected to the sensor 91, a circuit for detecting the presence or absence of excrement, and a circuit for transferring the result to the outside. .. Further, a connector 430 is mounted on the circuit board 420, which enables electrical connection with the outside. The connector 430 may be arranged on the side opposite to the side to which the tube 910 is connected.

In this way, in the gas information acquisition device 3A, by arranging the deodorizing unit 410 in the housing 400, even if the gas discharged by the gas suction / discharging device 1A has an offensive odor (bad odor), the deodorizing unit 410 After deodorizing with, it can be discharged to the outside through the through hole 400x. Therefore, the room in which the gas information acquisition device 3A is installed can be made into a comfortable environment without an offensive odor (bad odor). Further, since there is no offensive odor (bad odor) associated with the gas discharge of the gas information acquisition device 3A in the room, the sensor 91 can detect the odor that should be originally detected and can prevent erroneous detection.

Although the preferred embodiments and the like have been described in detail above, they are not limited to the above-described embodiments and the like, and various modifications and substitutions are made to the above-mentioned embodiments and the like without departing from the scope described in the claims. Can be added.

For example, in each embodiment and its modification, the measurement area is on the bed, but the measurement area is not limited to the bed, and the monitored person (care recipient, patient, etc.) can lie on the bedding. It should be in. The bedding is, for example, a bed, a futon, a mattress, a cushioning material, and the like.

Further, in each gas suction / discharge device, a pressure gauge may be used instead of the strain gauge to detect the clogged state of the filter and the state of the tube.

1, 1A gas suction / discharge device, 3, 3A gas information acquisition device, 10 lower case, 11, 61 protrusion, 12A, 12B, 15, 41, 43, 62, 64, 82, 85, 400x through hole, 13, 14, 23, 42, 63, 83, 84 recesses, 17 gauge mounting part, 20 micro blower, 21 main body, 22 external connection terminal, 30 micro blower support, 40 filter support plate, 50 filter unit, 51, 55 filter support, 52 filter, 60 upper case, 70 screws, 80 micro blower case, 91 sensor, 92 wiring board, 93 spacer, 94 screws, 100 strain gauge, 110 base material, 110a top surface, 120 functional layer, 130 resistor, 131, 831 1st part, 132, 832 2nd part, 140 wiring, 150 terminal part, 211 outer case, 211a cavity part, 211b, 212a, 219 wall part, 211c, 212b through hole, 212 inner case, 214 spring connection part, 215 Vibrating plate, 215a piezoelectric element, 215b diaphragm, 216 first blower chamber, 217a inflow passage, 217b inflow space, 218 second blower chamber, 219a opening, 300 case, 320 area, 330 top lid, 351, 352, 353 fixing member , 400 chassis, 410 deodorant unit, 420 circuit board, 430 connector, 800 bed, 810 sheets, 900, 900A, 900B, 900C ₁ , 900C ₂ , 900D, 900E cover, 901, 902 1st area, 901a, 901b , 901f, 901g, 902a, 902b, 903a, 904a insertion slot, 903, 904, 905 second region, 906, 907 surplus region, 910, 920 tube, 933, 934, 935 elastic body, 950, 950C, 950D, 950E. Cover structure

Claims (13)

A cover that positions a tubular member that sucks in the odor associated with excretion.
The first region into which the tubular member can be inserted and
A cover that is located on both sides of the first region in the longitudinal direction and has a pair of second regions that can accommodate an elastic body. The cover according to claim 1, wherein the number of the second regions is one more than the number of the first regions. The cover according to claim 1 or 2, wherein a surplus region is defined on the side of the second region in the direction in which the tubular member is stretched. The cover according to any one of claims 1 to 3, wherein an insertion restricting portion for restricting the insertion of the tubular member is provided at a predetermined position in the first region. The cover according to claim 4, wherein the predetermined position corresponds to a position corresponding to the buttocks of a person who discharges the odor. At least one of both ends of the first region serves as an insertion slot for the tubular member.
The cover according to any one of claims 1 to 5, wherein a pull-out suppressing portion for suppressing the pull-out of the tubular member is provided on the insertion port side of the first region. The cover according to claim 6, wherein the pull-out suppressing portion has a portion inclined with respect to the longest straight portion of the first region. A cover structure in which one end side of the tubular member is inserted into the first region of the cover according to any one of claims 1 to 7, and an elastic body is housed in the second region. The cover structure according to claim 8 and
It has a gas suction / discharge device provided with a microblower that sucks and discharges gas, and a sensor that is arranged on the gas discharge side of the microblower and acquires information on the gas.
A gas information acquisition device in which the other end side of the tubular member is connected to the suction side of the gas suction / discharge device. The gas information acquisition device according to claim 9, wherein the cover structure is arranged on a bedding on which a person to be monitored can lie down. The gas information acquisition device according to claim 9 or 10, wherein the gas suction / discharge device has a plurality of micro blowers arranged in series with the suction direction and the discharge direction of the gas aligned. The gas information acquisition device according to any one of claims 9 to 11, wherein the sensor is an odor sensor that detects the odor of the gas as information on the gas. The gas information acquisition device according to claim 12, wherein the gas suction / discharge device and the deodorizing unit are housed in the same housing.

Images