JP2018016917A - Posture detecting garment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a posture detecting garment capable of mounting a signal processor without giving a wearer an unpleasant feeling.SOLUTION: A posture detecting garment includes: a posture detecting fabric in which a body fabric constituting at least a front body and a back body is constituted of an elastic fabric covering a body surface, and which is knitted integrally with the body fabric or connected to the body fabric, and converts a change in an elastic state of the body fabric to a change in electrical characteristics; and a fitting part which electrically connects a signal processor constituted in a slender shape in a plain view to the posture detecting fabric. The fitting part is provided in a front body or a back body of the body fabric in which a fixed elongation loading (JIS L1096 E method compliance) in 30% elongation in a body-width direction is set in a range of 0.01 N to 1 N, and is constituted of a locking tool detachably mounted so as to put the longitudinal direction of the signal processor in a horizontal posture.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a garment composed of a stretch knitted fabric in which a body cloth covers a body surface.

  In recent years, awareness of managing physical condition has been increased by activities using fitness clubs in response to the growing health consciousness, and various assistive devices have been proposed. For example, it is a biological information measuring device that measures and records the number of steps, distance traveled, pulse, calories burned, and the like.

  Patent Document 1 proposes a biological information measuring device that can be attached to the chest by tightening a belt with an appropriate strength with a simple operation.

  The biological information measuring device includes a belt unit wound around a human body, an attachment provided in common at both ends of the belt unit, and an expansion / contraction adjustment mechanism that changes and adjusts the distance between the attachment and at least one of both ends of the belt unit, And a measurement unit having a biological information detection circuit that is electrically connected to the attachment and detects biological information, and the measurement unit is rotated with respect to the attachment so that the measurement unit is turned off. A configuration that can be set to either a first operation state in which the tightening of the belt unit with respect to the human body is released or a second operation state in which the power supply of the measurement unit is set to the on state and the belt unit is tightened with respect to the human body. It has.

  Patent Document 2 proposes a wearable electrode that can reduce discomfort caused at the time of wearing and can stably contact the living body electrode with the living body. The wearable electrode includes a biological electrode, a baseband part that goes around the chest in the lateral direction, and a front chest part placement position on one side in the left-right direction of the baseband part via a shoulder part on the opposite side in the left-right direction. And a brace that has a slanted band portion that is connected to a back side arrangement position on one side of the baseband portion in the left-right direction, and holds a bioelectrode.

JP 2014-54368 A Japanese Patent Laying-Open No. 2015-77226

  Since the above-described biological information measuring device and wearable electrode are both used by wrapping the belt member around the upper body of the body, the problem of uncomfortable feeling is solved no matter how the tightening pressure is adjusted. Since there was nothing, further improvement was desired.

  Therefore, the applicant of the present application is that the posture detection fabric for converting the change in the stretched state of the body fabric into the change in the electrical property is knitted integrally with the body fabric or joined to the body fabric, and the electrical property detected by the posture detection fabric. Has proposed clothing that can detect the posture of the wearer on the basis of the change (Japanese Patent Application No. 2015-243565).

  In such a garment, since the element for detecting the posture is incorporated in the garment, there is no need to wrap it around the body, and there is no discomfort. Such a change in electrical characteristics generated in the posture detection fabric is detected by being electrically connected to a signal processing device attached to the clothing.

  The signal processing device incorporates a signal processing circuit that detects a change in electrical characteristics generated in the posture detection fabric, and a wireless communication circuit that transmits a value processed by the signal processing circuit to an external information processing device such as a smartphone. It is.

  If it is a biological information measuring device and a signal processing device incorporated in a wearable electrode as disclosed in the above-mentioned patent document, it is attached to a belt wound around the body in the first place. Even if there is, it does not have a sense of incongruity, but when it is attached to clothing that touches the skin softly without giving a feeling of tightness, a sense of incongruity occurs when the wearer's posture changes There was a problem.

  In the compression-type wear that supports the motor function by supporting the muscle, an electrode for monitoring the heart rate and the like is embedded, and a metal locking tool for electrical connection with the electrode is embedded. In the compression-type clothing that is strongly pressed against the skin, a signal incorporated in the biological information measuring device and the wearable electrode as disclosed in the patent document is proposed. As with processing devices, the mounting posture and mounting position of the signal processing device are very important when using clothing that fits the body gently and expands and contracts gently without feeling uncomfortable. It was.

  In view of the above-described problems, an object of the present invention is to provide a posture detection garment that can be worn with a signal processing device without causing discomfort to wear.

  In order to achieve the above-mentioned object, the first characteristic configuration of the posture detection garment according to the present invention is the stretchable fabric in which at least the body fabric constituting the front body and the back body covers the body surface, as described in claim 1 A posture detection fabric that is knitted or joined to the body fabric and converts the change in the stretched state of the body fabric into a change in electrical characteristics, and a signal processing unit that is configured in an elongated shape in plan view. A posture detecting garment comprising an attachment portion electrically connected to the posture detection fabric, wherein the attachment portion has a constant elongation load (based on JIS L1096 E method) at the time of 30% elongation in the width direction. .1N to 1N, which is provided in the front body or the back body of the body fabric, and is configured to be a releasable mounting tool so that the longitudinal direction of the signal processing unit is in a horizontal posture. There is in point.

  If the body fabric has a constant elongation load (based on JIS L1096 E method) in the range of 0.01N to 1N when stretched 30% in the width direction, the wearer's surface remains in contact with the body surface. Since it expands and contracts softly following the change in posture, it is possible to send a daily life while wearing for a long time, and the posture can be detected as needed in the daily life. When attaching a signal processing unit configured in an elongated shape in plan view to such posture detection clothing via a locking tool, the front body or the back body so that the longitudinal direction of the signal processing unit becomes a horizontal posture The signal processing unit does not give a special feeling of pressure to the surface of the body in any case of taking a forward bending posture, bending the state backward, turning left and right, and a good state Maintained.

  In the second feature configuration, in addition to the first feature configuration described above, the mounting portion is 200 mm to 400 mm downward from the top of the armhole in a flat state in the front body. The signal processing unit is provided so as to be positioned on the front center line in the range.

  When the signal processing unit is mounted on the front center line in the range of 200 to 400 mm below the top of the armhole in the flat state in the front body, the clothing made of body cloth that softly contacts the surface of the body as described above Even when the wearer changes the posture in various ways, the signal processing unit does not give a particular feeling of pressure to the surface of the body.

  In the third feature configuration, as described in claim 3, in addition to the first or second feature configuration described above, the posture detection fabric intersects with the back center and is bilaterally symmetrical. It is composed of a belt-like fabric that is knitted or joined to the body fabric, and is configured to be able to detect the wearer's stooped posture based on a change in electrical characteristics detected by the posture detection fabric. There is in point.

  As a result of intensive studies by the inventors of the present application, a new finding has been obtained that a large correlation is seen between the stooped posture and the interscapular distance. When the distance between the lower corners of the scapula increases, the level of the stoop is worsened, and when the distance between the lower angles decreases, the stoop is eliminated and the posture improves. Therefore, a garment that covers the body surface using a body cloth that expands and contracts due to variations in the distance between the lower scapular angles, and a belt-like posture detection cloth that converts the change in the stretched state into a change in electrical characteristics, By knitting or joining the body cloth integrally with the body cloth so as to cross the center and be bilaterally symmetric, it becomes possible to indirectly detect a change in the distance between the subscapular angles as a change in electrical characteristics. As a result, the wearer's stoop posture can be grasped as an objective numerical value.

  In the fourth feature configuration, as described in claim 4, in addition to the third feature configuration described above, the posture detection cloth is at least two in a horizontal posture on the back of the back body and spaced apart vertically. In this arrangement, the mounting portion is configured such that each of the posture detection cloths and the signal processing portion can be electrically connected individually.

  By using a stretchable fabric whose electrical resistance changes in correlation with the stretched state of the body fabric as the posture detection fabric, it becomes possible to indirectly detect a change in the distance between the subscapular angles as a change in the electrical resistance value. However, since the posture detection fabric expands and contracts even when the wearer breathes, a change in the electrical resistance value due to breathing is superimposed as noise, and thus there is a possibility that an accurate value cannot be obtained with the instantaneous value of the electrical resistance value. Therefore, it is necessary to obtain a time average value of the electric resistance value to cancel the change in the electric resistance value due to respiration, or to perform a filtering process for removing noise due to respiration, which requires a detection time. Even in such a case, if noise due to breathing is detected as in-phase noise by at least two posture detection fabrics arranged in a horizontal posture on the back of the back body and spaced apart vertically, for example, the difference is calculated. Thus, the common-mode noise can be easily canceled out, and the change in the subscapular distance can be accurately detected without taking time.

  As described above, according to the present invention, it is possible to provide posture detection clothing that can be worn with a signal processing device without causing discomfort to wear.

(A) is the rear view of the wearing state of the posture detection clothing for men according to the present invention, (b) is the same front view, (c) is the same front view (A) is an explanatory diagram of the position of the scapula in a state where the distance between the subscapular angles is shortened and the dorsal posture is eliminated, and (b) is a shoulder in the state where the distance between the subscapular angles is increased and the dorsal posture is increased. Explanatory drawing of the position of a scapula, (c) is explanatory drawing of the position of a scapula in the state which wore posture detection clothing for men by the present invention. (A) is a rear view of the wearing state of the posture detection garment for women according to the present invention, and (b) is a perspective view thereof. Knitting structure chart of posture detection fabric in contracted state Knitting organization chart of stretched posture detection fabric (A) is explanatory drawing of SCY which can be used for posture detection cloth, (b) is explanatory drawing of DCY which can be used for posture detection cloth, (c) is explanatory drawing of SCY in an extension state, (d) is covering Knitting organization chart of flat knitting using yarn Knitting organization chart of conductive stretch fabric Characteristics of resistance value between terminals of conductive stretch fabric (A), (b), (c), (d) is a graph which shows the evaluation test result of the attachment position of a signal processing part. (A), (b), (c), (d) is a graph which shows the evaluation test result of the attachment position of a signal processing part.

Hereinafter, posture detection clothing according to the present invention will be described with reference to the drawings.
1A, 1B, and 1C show a posture detection garment 100 for men. The posture detection garment 100 is a garment 100 for detecting whether or not the posture of the upper body of the wearer is a stooped posture while being worn daily as underwear.

  The garment 100 includes a front body 2, a back body 3, and a sleeve 4 using a body fabric 1 that exhibits stretchability in two directions, and is configured to gently and tightly cover the surface of the wearer's body. Yes. When the skin surface expands or contracts in accordance with the change in the posture of the wearer, the body cloth 1 expands and contracts along the skin surface accordingly.

  In order to detect the degree of expansion / contraction of the body cloth 1 at this time, the body cloth 1 expands / contracts as the body cloth 1 expands / contracts, and the change in the expansion / contraction state is converted into a change in electrical characteristics, in this embodiment, a change in electrical resistance value A belt-like posture detection fabric 5 (5A, 5B) is knitted or joined to the body fabric 1 integrally with the body fabric 1. As a joining mode, there are a mode in which the posture detection fabric 5 is bonded to the body fabric 1 or a mode in which the force detection fabric 5 (5A, 5B) is sewn to the body fabric 1, and any mode may be used.

  Each posture detection fabric 5 (5A, 5B) is connected to a signal processing unit 7 mounted above the abdomen via a conductive stretch fabric 6 (6A, 6B), and the signal processing unit 7 detects a change in electrical characteristics. It is configured to be.

  As shown in FIGS. 1 (b) and 1 (c), on the end of the conductive stretch fabric 6 (6A, 6B), locking tools (T1, T2) made of metal snap buttons functioning as attachment portions, (T3, T4) is provided, and the signal processing unit 7 provided with the snap button that engages with the locking tool (T1, T2), (T3, T4) is detachably engaged, Each posture detection fabric 5 (5A, 5B) is electrically connected to the signal processing unit 7 via the conductive stretch fabric 6 (6A, 6B).

  Similarly to the posture detection fabric 5 (5A, 5B), the conductive stretch fabric 6 (6A, 6B) is knitted together with the body fabric 1 or joined to the body fabric 1, and expands and contracts as the body fabric 1 expands and contracts. However, a cloth having a substantially constant electrical resistance regardless of the stretched state is used.

  Specifically, the posture detection fabrics 5 (5A, 5B) are arranged in a horizontal posture on the back part of the back body 3 with a vertical interval so as to cross the back center P and be symmetrical. .

  The two posture detection fabrics 5A and 5B are configured to have the same length substantially equal to the width W, and the electrical resistance detection length of each posture detection fabric 5A and 5B, that is, the effective length for detecting the posture change is set. Different lengths W1 and W2 are set.

  As shown in FIGS. 2 (a) and 2 (b), there is a correlation between the stoop posture and the position of the lower corner 21 of the left and right scapula 20, and as the distance L between the subscapular angles increases, the degree of the stoop becomes worse (see FIG. 2). 3 (b), the position of the scapula shown by the solid line), and when the distance L between the lower corners is narrowed, the stoop is eliminated and the posture is improved (the position of the scapula shown by the solid line in FIG. 3A).

  As shown in FIG.3 (c), the attitude | position detection clothing 100 was comprised so that a body surface might be covered using the body cloth 1 which expands-contracts by the fluctuation | variation of the interscapular distance L, and it was distribute | arranged to the back part. It is clothing that indirectly detects a change in the distance L between the subscapular angles as a change in the electrical resistance value by the belt-like posture detection fabric 5 (5A, 5B). The posture detection cloth 5 may be made of a cloth that can be detected as a change in electrical characteristics other than the electrical resistance value. For example, the capacitance and the electromotive force change depending on the degree of distortion.

  The signal processing unit 7 includes a resistance detection circuit such as a pair of Wheatstone bridge circuits for obtaining an electrical resistance value corresponding to the electrical resistance detection length of each posture detection fabric 5A, 5B, and a difference value between outputs of the resistance detection circuits. And a wireless communication circuit such as Bluetooth (registered trademark) for transmitting the output of the arithmetic circuit to the outside. By connecting a mobile terminal such as a smartphone and a wireless communication circuit, the display screen of the mobile terminal shows whether or not the wearer's posture is stooped, how stiff it is, and how long it is. Posture information such as whether or not is continuing is displayed.

  However, since the posture detection fabric 5 expands and contracts even when the wearer breathes, there is a possibility that a change in the electrical resistance value due to breathing is superimposed as noise, and an accurate value cannot be obtained with the instantaneous value of the electrical resistance value.

  Therefore, it is necessary to calculate the time average value of the electrical resistance value to cancel the change in the electrical resistance value due to respiration, or to perform a filter process to remove noise due to respiration. Will be required. According to the above-described configuration, even if the fluctuation of the resistance value is detected as the in-phase noise due to the expansion and contraction due to respiration in each of the two posture detection fabrics 5A and 5B, the common-mode noise can be canceled by obtaining the difference between the two. Thus, it becomes possible to accurately detect the change in the distance between the subscapular angles without requiring time for the averaging process.

  By making the electrical resistance detection length of the posture detection fabric 5 bilaterally symmetric with respect to the back center P, it becomes possible to appropriately detect the variation in the distance between the subscapular angles without applying a lateral bias. In addition, by setting the electrical resistance detection length of the force detection fabric at the top and bottom, it is possible to make a difference in the degree of variation in the distance between the subscapular angles at the top and bottom, and obtain the difference between each electrical resistance value. In this case, only noise due to breathing can be effectively removed. The electrical resistance detection length refers to the length of the section in which the electrical resistance is measured in the belt-like posture detection fabric 5 that expands as the body fabric extends.

  The difference between the resistance values when the distance between the lower corners of the left and right shoulder blades is the minimum, and the wearer's stoop is eliminated and a good posture is determined as a numerical value, and the difference between the resistance values when the distance between the lower corners is the maximum The value determines the worst posture of the wearer as a numerical value.

  Therefore, based on the difference value of each resistance value when the distance between the lower corners of the left and right scapula is the minimum and the difference value of each resistance value when the distance between the lower angles is the maximum, the degree of arbitrary stoop posture is It is preferably detected, and the difference between the resistance values obtained with respect to an arbitrary stoop posture can be compared with the two so that the degree of stoop can be expressed as an objective numerical value.

  In FIG. 1A, the example in which the electrical resistance detection length of the upper posture detection cloth 5A is shorter than the electric resistance detection length of the lower posture detection cloth 5B has been described. The electrical resistance detection length of the posture detection fabric 5A may be configured to be longer than the electrical resistance detection length of the downward posture detection fabric 5B.

  The posture detection fabrics 5A and 5B themselves are preferably configured to have the same length. The posture detection fabric 5 expands and contracts as the body fabric 1 expands and contracts due to the change in the distance between the lower scapular corners. If the lengths of the upper and lower posture detection fabrics 5A and 5B are adjusted to the electrical resistance detection length, the posture detection fabric. However, there is a risk that only the body fabric will expand and contract and the posture detection fabric will not expand and contract.

  If the upper and lower posture detection fabrics 5A and 5B are set to the same length, the upper and lower posture detection fabrics 5A and 5B expand and contract in the same manner as the body fabric expands and contracts. The lengths of the posture detection fabrics 5A and 5B are set to be substantially the same as the width W so that the posture detection fabric also expands and contracts integrally with the back body that expands and contracts according to the change in the distance between the lower scapular angles. It is preferable that

  The posture detection fabrics 5A and 5B are preferably arranged so as to be at least 10 mm apart from each other in the range of 35 mm to 170 mm downward from the intersection of the shoulder line and the armhole. The posture detection fabrics 5A and 5B can be expanded and contracted appropriately in response to the fluctuations, and the back posture can be detected.

One of the resistance detection lengths divided into the posture detection fabrics 5A and 5B is set in a range of 20 mm to 230 mm, and the other is longer than the one resistance detection length and set in a range of 100 mm to 290 mm. More preferably, the one is set in a range of 30 mm to 90 mm, and the other is set in a range of 150 mm to 210 mm. When this range is set, fluctuations in the subscapular distance can be detected well while canceling out respiratory noise.

  3A and 3B show a posture detection garment 100 for women. In the embodiment described above, the lengths of the posture detection fabrics 5A and 5B are set to be substantially the same as the width W, and the electrical resistance detection length is adjusted by the connection position of the conductive stretchable fabric 6 (6A and 6B). In this embodiment, the lengths of the posture detection fabrics 5A and 5B are the electrical resistance detection lengths, and are configured so that the lengths are different vertically.

  Then, the conductive stretchable fabrics 6A and 6B extend from the left and right ends of the posture detection fabrics 5A and 5B to the left and right, the extension lengths of the posture detection fabric 5A and the conductive stretchable fabric 6A, and the posture detection fabrics 5B and the conductive materials. The extension length of the elastic stretch fabric 6B is set to be substantially the same as the width W. Even in such a configuration, the posture detection fabric appropriately expands and contracts in accordance with the change in the distance between the subscapular angles.

  It is preferable that the constant elongation load of the posture detection fabric 5 is set to be at least equal to or greater than the constant elongation load in the width direction of the body fabric, and is less susceptible to the expansion and contraction of the body fabric other than the detection region, so that the posture change can be accurately performed. Can be detected. Moreover, it is preferable that the constant extension load of the conductive stretchable fabric 6 is set to substantially the same value as the constant extension load of the posture detection fabric 5.

  The constant elongation load (based on JIS L1096 E method) at 30% elongation in the width direction of the body fabric 1 is preferably in the range of 0.01N to 1N, and the constant elongation load at 30% elongation of the posture detection fabric is 0. A range of 2N to 1.8N is preferred.

  If it is set within this range, it will be less susceptible to the expansion and contraction of the body cloth other than the detection part, and will expand and contract appropriately following posture changes, so that the stoop posture can be detected well. Become.

  It should be noted that the sample size of the posture detection fabric is 120 mm × 9 mm and cannot be adjusted to the size specified by the E method, and is therefore compliant with the E method. When the width dimension is different from 9 mm, an appropriate value is determined by proportional calculation according to the width dimension.

  The constant elongation load (according to JIS L1096 E method) at 30% elongation in the width direction of the body fabric 1 is in the range of 0.02N to 0.6N, and the constant elongation load at the time of 30% elongation of the posture detection fabric (JIS L1096 E method) is more preferably in the range of 0.4N to 1.7N, and the constant elongation load (according to JIS L1096 E method) at 30% in the width direction of the body fabric 1 is 0.03N More preferably, the constant elongation load (based on JIS L1096 E method) at 30% elongation of the posture detection fabric is in the range of 0.5N to 1.5N.

  The stretch recovery rate in the width direction of the body fabric (according to JIS L1096 E method) is in the range of 50% to 100%, and the stretch recovery rate of the posture detection fabric is preferably in the range of 40% to 100%, If it is set within this range, it will be less susceptible to the expansion and contraction of the body cloth other than the detection part, and it will be possible to detect the prone posture well, and the prone posture will be continuously good over a long period of time. Can be detected.

  The stretch recovery rate in the width direction of the body fabric (based on JIS L1096 E method) is in the range of 55% to 100%, and the stretch recovery rate of the posture detection fabric is in the range of 45% to 100%. Preferably, the stretch recovery rate in the width direction of the body fabric (based on JISL1096 E method) is in the range of 60% to 100%, and the stretch recovery rate of the posture detection fabric is in the range of 50% to 100%. preferable.

  The mounting portion for attaching the signal processing unit 7 described above is provided on the front body 2 or the back body 3 of the body cloth 1 and is detachably mounted so that the longitudinal direction of the signal processing unit 7 is in a horizontal posture. Is preferred.

  As shown in FIGS. 1 (c) and 3 (b), if the front body 2 is used, the mounting portion is placed on the front center line in a range of 200 to 400 mm downward from the apex of the armhole in a flat state in the front body. It is preferable that the signal processing unit is provided so as to be located.

  When the signal processing unit 7 is attached at such a position, the signal processing unit 7 can be attached to the body surface even when the wearer of the clothing made of body cloth that softly contacts the body surface changes the posture. There is no particular pressure or discomfort.

  In this case, the mounting position of the signal processing unit 7 is substantially a position above the navel at the lower end of the sternum in the worn state of the front body 2. In the wearing state, at the lower end of the sternum and above the umbilicus and in the left and right lateral direction, it is relatively difficult to get fat regardless of men and women, so the signal processing unit does not change even if the wearer's posture changes variously There is no particular pressure on the body surface. Whether the woman has breasts that bulge in the chest or a man with subcutaneous fat accumulated in the chest or lower abdomen, the longitudinal direction of the signal processing unit is the horizontal valley between the chest and the abdomen. Therefore, it does not press up and down. Further, in the case of the back body 3, it is desirable to be directly under the scapula on the center of the back.

  The constant elongation load (based on JIS L1096 E method) when stretched 30% in the width direction is a body fabric set in the range of 0.01N to 1N, while maintaining the contact state with the body surface Since it expands and contracts softly following the change in posture, it is possible to send a daily life while wearing for a long time, and the posture can be detected as needed in the daily life.

  When attaching a signal processing unit configured in an elongated shape in plan view to such posture detection clothing via a locking tool, the front body or the back body so that the longitudinal direction of the signal processing unit becomes a horizontal posture The signal processing unit does not give a special feeling of pressure to the surface of the body in any case of taking a forward bending posture, bending the state backward, turning left and right, and a good state Maintained.

  In addition, it is preferable that the constant elongation load (according to JIS L1096 E method) at the time of 30% elongation in the body height direction is also set in the range of 0.01N to 1N. There is no.

  4 and 5 illustrate the knitting structure of the posture detection fabric 5. The posture detection fabric 5 is configured by inserting an elastic yarn 11 in a course direction by an inlay into a flat knitted fabric knitted with a conductive yarn 10. One course of elastic yarn 11 is inserted for each course of the conductive yarn 10, and the elastic yarn 11 is entangled with the loop of the conductive yarn 10 along the conductive yarn 10.

  “Conductive yarn” refers to a bare material with a metal component exposed on the yarn surface. In addition, the “elastic yarn” is a one that maintains a contracted state when no tensile force is applied (non-elongation = normal state), and freely expands according to the tensile force when a tensile force is applied, and When the tensile force is released and the load is restored when no load is applied, the material is restored (contracted) from the stretched state to the original contracted state.

  As the conductive yarn 10, a resin fiber, natural fiber, or metal wire is used as a core, and a metal component is deposited on the core by wet or dry coating, plating, vacuum film formation, or other appropriate deposition methods. It is preferable to use a metal deposition wire (plated wire). Although a monofilament can be used for the core, a multifilament or a spun yarn is preferable to the monofilament. Furthermore, it is also possible to use fibers having elasticity such as polyurethane fibers. As the covering portion, a wooly processed yarn, a covering yarn such as SCY or DCY, or a bulky processed yarn such as a fluffed yarn is more preferable.

  Examples of metal components to be deposited on the core include pure metals such as aluminum, nickel, copper, titanium, magnesium, tin, zinc, iron, silver, gold, platinum, vanadium, molybdenum, tungsten, cobalt, alloys thereof, stainless steel Brass, etc. can be used.

  As the elastic yarn 11, polyurethane or rubber-based elastomer material may be used alone, or covering yarn using polyurethane or rubber-based elastomer material for the “core” and nylon or polyester for the “cover” is used. can do. By employing such a covering yarn, functions such as hydrophilicity, water repellency, corrosion resistance / corrosion resistance, and coloring can be imparted. It is also useful for improving touch and controlling elongation. It should be noted that a thread containing a conductive material can be used as the elastic thread 11.

  Since the elastic yarn 11 is inserted in the course direction with respect to the flat knitted fabric made of the conductive yarn 10, the elastic yarn 11 acts to tighten the flat knitted fabric made of the conductive yarn 10 in the course direction. Thereby, when the body cloth is not extended, the contact state between the loops of the conductive yarns 10 adjacent in the course direction is maintained by the tightening force of the elastic yarn 11 (see FIG. 4).

  Each loop of the conductive yarn 10 is deformed into a shape contracted in the course direction, and this deformed shape is maintained. Since the conductive yarn 10 is a conductive bare material, the greater the number of contact points by the loop, and the greater the contact area by being compressed in the course direction, the more the number of conductive contacts, that is, conductive The area is large, the energization path is shortened, and the electrical resistance between two locations separated in the course direction is reduced.

  When the body fabric is stretched, the loops of the conductive yarn 10 come apart against the tightening force of the elastic yarn 11. The separation behavior of the loop of the conductive yarn 10 at this time is not that all the loops are separated all at once, but the contact pressure is gradually decreased in proportion to the degree of elongation of the knitted fabric, but the contact state is still maintained ( A case where the contact area is reduced compared to the case of non-extension), a case where contact is released and the gap is gradually widened, or a case where the contact state is maintained when not extended are mixed (FIG. 5). reference).

  Therefore, as the extension starts from the non-extension time and the degree of extension increases, the conduction area decreases, the energization path becomes longer, and the electric resistance tends to gradually increase. Naturally, when the stretching force by the body fabric 1 is released, the elastic yarn 11 contracts in the course direction by the tightening force in the course direction and restores the non-stretched state. Becomes smaller.

  4 and 5, an example in which a flat knitted fabric is knitted with the conductive yarn 10 has been described. However, even if a ground structure is constituted by a rubber knitted fabric (milling knitting) and the elastic yarn 11 is inserted in the course direction by an inlay. Good.

  That is, the posture detection fabric 5 is knitted with conductive yarns 10 in which loops are formed in the course direction, and elastic yarns 11 that are inserted in the course direction and that come into contact with each loop in a contracted state and can be separated in an extended state. It consists of knitted fabric.

  Further, the conductive stretchable fabric 6 is knitted with conductive yarn having a loop formed in the course direction and elastic yarn inserted in the course direction, and the elastic yarn is heat-sealed to the knitting portion of the conductive yarn by heat setting. It is composed of knitted fabric.

  That is, the knitting structure is substantially the same as that of the posture detection fabric 5, low melting point polyurethane is used as the elastic yarn 11, and the conductive yarn 10 thicker than the conductive yarn 10 used in the posture detection fabric 5 is used.

  Since the elastic yarn 11 is heat-sealed to the knitted portion of the conductive yarn 10 by heat setting, the elastic yarn 11 basically does not exert a contracting force in the course direction, and is in a slightly stretched state. Even in the contracted state, the contact state of the loop of the conductive yarn 10 hardly changes, and therefore the resistance value hardly changes due to expansion and contraction.

  The posture detection fabric 5 and the conductive stretch fabric 6 are formed in a strip shape so that the longitudinal direction is along the course direction. It is not necessary that the entire region in the width direction perpendicular to the longitudinal direction is composed of a flat knitted fabric made of the conductive yarn 10, but at least only the central portion in the width direction is made of a flat knitted fabric made of the conductive yarn 10, and both sides are insulated. You may be comprised with the plain knitted fabric by a thread | yarn.

  As shown in FIGS. 6 (a) and 6 (b), as the posture detection fabric 5, the covering yarn 14 is made of the elastic yarn 11 as the core and the conductive yarn 10 as a single-coated SCY or a double-coated DCY. It is also possible to use a knitted fabric.

  As shown in FIG. 6C, when the fabric is stretched, the elastic yarn 11 itself is stretched to widen the gap between the wound conductive yarns 10 and the contact points of the conductive yarns between adjacent courses are reduced. As a result, the resistance value changes.

  FIG. 7D illustrates a plain knitted fabric using such covering yarn. Either SCY or DCY may be used as the covering yarn, but DCY is more preferable because there is an intersection between the conductive yarns, and conduction can be secured, the covering density is easily increased, and the effect of lowering the initial resistance value is obtained. The draft rate of the elastic yarn and the twist number of the conductive yarn may be about the same as the covering yarn usually used for skin wearing (for example, the draft rate is about 1.0 to 5.0 times, and the twist number is about 50 to 2000 T / m). .

  As in this example, the posture detection fabric 5 and the conductive stretchable fabric 6 can be knitted together with the body fabric 1, and only the region of the body fabric 1 where the posture detection fabric 5 is to be disposed. It is also possible to knit together with one. Further, as a mode of knitting integrally with the body cloth 1, it is possible to sew the covering thread described above after knitting the body cloth into the body cloth so as to function as the posture detecting cloth 5 and the conductive stretchable cloth 6. is there.

  A covering yarn in which natural fibers such as cotton are wound around a polyurethane yarn as a raw yarn for knitting the body fabric 1 is preferably used. In addition to natural fibers, regenerated cellulose fibers such as cupra and viscose rayon, synthetic fibers such as polyester, and the like can be used.

  Weft knitted fabrics such as knitting, milling, smooth knitting, pearl knitting and the like using the above-mentioned covering yarn can be suitably used as the body fabric 1, so that the course direction is along the width of the body and the wale direction is lengthy. It is preferable to be used along.

  The fabric 1 is a knitted fabric in which heat-deformable elastic yarns and other yarns are knitted by plating, and the heat-deformable elastic yarns are thermally deformed by heat-set processing, and the edges are cut. It is more preferable to use a knitted fabric that has been subjected to a release treatment.

  If the knitted fabric subjected to such unwinding processing is employed, the fibers will not be unwound from the end portion that has been cut off even after repeated washing, and the appearance will not deteriorate. Further, for example, since the conventional anti-breaking process such as folding the end portion and sewing is not necessary, there is no inconvenience due to deterioration of the touch due to the thickness of the end portion due to the conventional anti-unlocking process, Skin-friendly clothing can be provided.

  As shown in FIG. 7, the plating knitting is also called splicing knitting, and an existing knitting method can be adopted. For example, it is particularly preferable to use a knitting method in which a plurality of yarns are fed from different yarn feeders to knitting needles because the arrangement of the yarns in each knitting loop is stably determined. Therefore, the plating knitted fabric knitted by feeding the heat-deformable elastic yarn 12 and the other yarn 13 to the knitting needles from different yarn feeders is the heat-deformable elastic yarn 12 and the others in each knitting loop. Since the arrangement with the yarn 13 is stable, the heat-deformable elastic yarn can be adjacent to all the loops, and if the heat-deformable elastic yarn is thermally deformed by heat setting or the like, the entire knitted fabric It will be possible to realize the unlocking function reliably in the loop.

  Specifically, a low-melting-point polyurethane elastic yarn is selected as the heat-deformable elastic yarn 12, a mixed yarn of cotton yarn and rayon is selected as the other yarn 13, and a knitted fabric knitted by milling or smooth knitting is heat set. Thus, the low-melting point polyurethane elastic yarn is melted and fused to each other, thereby realizing the release function.

  If such a knitted fabric is used, the front body, the back body and the sleeve can be joined with an adhesive, and the posture detection fabric 5 mentioned above is also joined to the body fabric with an adhesive. Will be able to.

  Examples of the thermoplastic resin used as the adhesive include polyurethane hot melt resin, polyester hot melt resin, polyamide hot melt resin, EVA hot melt resin, polyolefin hot melt resin, styrene elastomer resin, and moisture curable urethane. System hot melt resin, reactive hot melt resin and the like. Among them, the reactive hot melt resin is particularly preferable because it has high adhesive strength and can be bonded in a short time.

  FIG. 8 shows the resistance value characteristics of the posture detection fabric 5 and the conductive stretch fabric 6. As a reference, the characteristics of a conductive stretch fabric knitted using copper wires as conductive yarns and 155 dtex polyurethane fibers as elastic yarns are also shown.

  The posture detection fabric 5 is formed of a knitted fabric that is knitted using only 155 dtex polyurethane fiber as a core yarn and milled only with a conductive yarn that is double-covered with a plating yarn 33 dtex to obtain DCY.

  The conductive stretch fabric 6 uses a polyurethane fiber of 155 dtex as a core yarn, a covering yarn obtained by DCYing the core yarn with 231 dtex (77 dtex × 3) as a conductive yarn, and a low-melting-point polyurethane fiber of 110 dtex as an elastic yarn. After being knitted and knitted, the low melting point polyurethane fiber is fused to the intersecting portion of the conductive yarn by heat setting.

  The posture detection fabric 5 has a linear relationship between the stretch rate and the resistivity of the fabric, but the conductive stretch fabric 6 has a substantially constant resistivity regardless of the stretch rate of the fabric.

  FIG. 9 shows an experimental result of evaluating a preferable position of the signal processing unit on the posture detection clothing. Using a knitted fabric milled with polyurethane yarn and cotton yarn as a knitting yarn as a body fabric (constant elongation load at 0.23 N when stretched 30% in the width direction of the body fabric) is regarded as posture detection clothing Using a hook-and-loop fastener as a signal mockup of a resin mockup of about 80mm x 40mm, it was attached to the underwear so that the longitudinal direction of the resin mockup was in a horizontal position, and a sensory test was conducted for about half a day. .

  The resin mock-up is mounted on the front body at the lower end of the sternum and above the navel (under the chest) when worn, under the neck (back) in the back body, and the scapula in the back body There are three places directly below (under the back). Whether a resin mock-up was felt (uncomfortable) or not felt (comfortable) was evaluated on a five-point scale with -2, -1, 0, 1 and 2, respectively.

  As shown in FIGS. 9 (a), (b), (c), and (d), it was found that the most conscious of the resin mock-up was on the back and the least conscious about the chest. The back was also found to be relatively good.

  FIG. 10 shows an experimental result of evaluating a preferable mounting position and mounting posture of the signal processing unit on the posture detection clothing. The resin mock-up is mounted on the front body at the lower end of the sternum and above the navel (under the chest) when worn, under the neck (back) in the back body, and the scapula in the back body There are three places directly below (under the back). Regarding the chest, the case where the longitudinal direction is a vertical posture and the case where the longitudinal direction is a horizontal posture are compared. As a result, it has been found that a horizontal posture is preferable when it is attached under the chest.

  The clothing constituted by the stretchable fabric in which the body fabric according to the present invention covers the body surface is widely used as posture detection clothing capable of monitoring the wearer's back posture while wearing it on a daily basis, for example.

1: Body fabric 2: Front body 3: Back body 4: Sleeve 5: Posture detection fabric 6: Conductive stretch fabric 7: Signal processing unit 100: Clothing

Claims (4)

The body fabric that forms at least the front body and the back body is composed of stretch fabric that covers the body surface, and is knitted or joined to the body fabric to convert the stretch state of the body fabric into electrical property changes. A posture detection garment comprising a posture detection fabric and a mounting portion that electrically connects the signal processing unit configured in an elongated shape in plan view to the posture detection fabric,
The attachment portion is provided on the front body or the back body of the body cloth, in which a constant elongation load (based on JIS L1096 E method) at 30% elongation in the width direction of the body is set in a range of 0.01N to 1N, Posture detection clothing comprising a locking tool that is detachably mounted so that the longitudinal direction of the signal processing unit is in a horizontal posture.   The posture detecting clothing according to claim 1, wherein the mounting portion is provided so that the signal processing portion is positioned on the front center line in a range of 200 mm to 400 mm downward from the top of the armhole in a flat state in the front body.   The posture detection fabric is composed of a belt-like fabric that is knitted or joined to the body fabric so as to intersect the back center and be symmetrical, and is detected by the posture detection fabric. The posture detection clothing according to claim 1, wherein the posture detection clothing is configured to be able to detect a wearer's stooped posture based on a change in electrical characteristics.   At least two of the posture detection fabrics are arranged in the horizontal posture on the back of the back body with a space in the vertical direction, and the attachment portion can electrically connect each of the posture detection fabrics and the signal processing unit individually. The posture-detecting clothing according to claim 3, which is configured as follows.