Wristband-type contactor

Abstract

To provide a contact body which can expand a range of motion of shoulder blades compared to a case where the contact body is not used.SOLUTION: A contact body 10, which is used in contact with a human body, includes: a sheet material 20 having stretchability; and a pattern body 40 applied to at least one face 24 of the sheet material 20 and includes binder resin and mixed powder dispersed in the binder resin, including silicon dioxide, with average particle size of 7 μm or less, and composed of a plurality of metal oxides. A ratio of the silicon dioxide in the mixed power is 70 wt.% or more, and application thickness of the pattern body 40 is 10 μm or more and 800 μm or less.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a contact piece that is used in contact with the human body. [Background technology]

[0002] Patent Document 1 discloses exercise clothing that aims to provide exercise clothing that can sufficiently improve exercise performance in various exercises that involve trunk rotation and arm movement. Specifically, this exercise clothing is as follows (see claim 1 of Patent Document 1). "An athletic garment having an upper body portion configured to fit the wearer's body, The upper body portion comprises a main body portion consisting of a front body portion and a back body portion formed from a stretchable material, and a belt-shaped tightening portion having a higher tightening force than the main body portion, The tightening portion is provided in the back body portion. a pair of left and right first tightening portions formed in an annular shape so as to surround the shoulder blades of the wearer; and second tightening portions that connect the first tightening portions together at positions corresponding to the wearer's thoracic vertebrae. According to Patent Document 1, this exercise clothing was invented with the aim of solving the problem that it was difficult for conventional exercise clothing to sufficiently improve athletic performance in various exercises that involve trunk rotation and arm movement (see paragraphs "0005" and "0006" in the specification of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4061336 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present application have been researching and developing devices that can increase the range of motion of the scapula, and have come up with the invention of a device with a simpler configuration (referred to herein as a "contact body").

[0005] An object of the present invention is to provide a contact member that has a simple configuration and can expand the range of motion of the scapula. Another object of the present invention is to provide a contact body that can increase the range of motion of the scapula compared to when it is not used. [Means for solving the problem]

[0006] The contact body of the first embodiment is A contact body used in contact with a human body, an elastic sheet material; a pattern body applied to at least one surface of the sheet material, the pattern body including a binder resin and a mixed powder of a plurality of metal oxides, the mixed powder including silicon dioxide and having an average particle size of 7 μm or less, dispersed in the binder resin; Equipped with The proportion of silicon dioxide in the mixed powder is 70% by weight or more, The coating thickness of the pattern body is 10 μm or more and 800 μm or less.

[0007] The contact body of the second embodiment is In the contact body of the first embodiment, Furthermore, the plurality of metal oxides includes alumina, The content of alumina in the mixed powder is 5% by weight or more and less than 10% by weight.

[0008] The contact body of the third embodiment is In the contact body of the second embodiment, Furthermore, the plurality of metal oxides include at least two or more metal oxides selected from iron trioxide, feldspar, and quicklime; The content of the at least two or more metal oxides in the mixed powder is 5% by weight or more and less than 15% by weight.

[0009] The contact body of the fourth aspect is In the contact body according to any one of the first to third aspects, The sheet material is a stretchable, long body, The pattern is applied to the contact surface of the sheet material that comes into contact with the human body.

[0010] The contact body of the fifth aspect is In the contact body of the fourth aspect, The area ratio of the pattern body to the contact surface is 20% or more and 70% or less.

[0011] The contact body of the sixth aspect is In the contact body according to any one of the first to third aspects, The sheet material is a stretchable, long body, the pattern is applied to a contact surface of the sheet material that comes into contact with a human body, The sheet material is designed to be stretched by 5% or more from its natural length when it comes into contact with the human body.

[0012] The contact body of the seventh aspect is In the contact body of the sixth aspect, The area ratio of the pattern body to the contact surface is 20% or more and 70% or less.

[0013] The contact body of the eighth aspect is In the contact body according to any one of the first to third aspects, Elastic belt, Furthermore, The sheet material is an elongated body, the pattern is applied to a contact surface of the sheet material that comes into contact with a human body, The elastic belt connects both ends of the sheet material, Used as an eye mask.

[0014] The contact body of the ninth aspect is In the contact body of the eighth embodiment, The pattern is applied to the human body so as to surround the eyes. [Effects of the Invention]

[0015] The contact bodies of the first, fourth, fifth, sixth, and seventh aspects can increase the range of motion of the scapula with a simple configuration. Furthermore, the contact body of the first aspect can increase the range of motion of the scapula compared to when it is not used.

[0016] The contact body of the second aspect can increase the range of motion of the scapula compared to when the mixed powder does not contain alumina in a proportion of 5% by weight or more and less than 10% by weight of the multiple metal oxides.

[0017] The contact body of the third aspect can increase the range of motion of the scapula compared to when the multiple metal oxides do not contain at least two or more metal oxides selected from iron trioxide, feldspar, and quicklime in a proportion of less than 5% by weight of the mixed powder.

[0018] The contact piece of the eighth aspect can keep the eyes warm.

[0019] According to the contact piece of the ninth aspect, it is possible to keep the eyes warm from all around. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 2 is a diagram of the outer surface of a wristband (an example of a contact body) according to the present embodiment. [Figure 2] FIG. 2 is a view of the inner side of the wristband of this embodiment. [Figure 3] FIG. 1 is a diagram showing a state in which a user is wearing a wristband according to an embodiment of the present invention on their arm. [Figure 4] FIG. 10 is a diagram for explaining an evaluation test method. [Figure 5] 10 is a table showing a list of wristband samples with different composition ratios of materials that make up the mixed powder of the pattern body, and a summary of the results of evaluation tests. [Figure 6]FIG. 10 is a diagram of a user performing exercises using the wristband of this embodiment and a waistband (another example of a contact body) and an ankle band (another example of a contact body) of a modified example. [Figure 7A] FIG. 10 is a diagram of a modified eye mask (another example of a contact body). [Figure 7B] FIG. 10 is a diagram of a modified eye mask (another example of a contact body). DETAILED DESCRIPTION OF THE INVENTION

[0021] Overview The present embodiment and several modified examples will be described below. Please note that when describing components having the same or similar functions as those described in the present embodiment in the description of the several modified examples, the same reference numerals as those used in the present embodiment will be used and the description thereof will be omitted as appropriate.

[0022] <<Present Embodiment>> The wristband 10 (an example of a contact body) of this embodiment will be described below. First, the configuration and function of the wristband 10 will be described. Next, a method for manufacturing the wristband 10 will be described. Next, the effects of the wristband 10 will be described.

[0023] <Wristband configuration and functions> Fig. 1 is a diagram of the outer surface of a wristband 10 (an example of a contact body) according to this embodiment, and Fig. 2 is a diagram of the inner surface of the wristband 10. Fig. 3 is a diagram showing how a user U wears the wristband 10 on their arm. Wristband 10 includes sheet material 20, fastener 30, and pattern body 40. Wristband 10 is intended to increase the range of motion of the shoulder blades, in other words, to facilitate movement of the shoulder joint, compared to when the wristband 10 is not in use, i.e., when the wristband 10 is not attached to the user U's arm.

[0024] [Sheet material and fasteners] 1 and 2, the sheet material 20 is, for example, an elastic, long hook-and-loop fastener. That is, the sheet material 20 is a stretchable, long body. The entire surface 22 of the sheet material 20 is made up of hook-and-loop fastener loops. A fastener 30 that can be attached to and detached from the loop surface of the front surface 22 is disposed at one end of the rear surface 24 of the sheet material 20 in the longitudinal direction. In this embodiment, the fastener 30 is a hook of a hook-and-loop fastener. As mentioned above, Fig. 3 shows the state in which the user U is wearing the wristband 10 on their arm, but the wristband 10 of this embodiment is used with the back surface 24 in contact with the arm (wrist). Furthermore, the wristband 10 is designed to be stretched by 5% or more from its natural length when in contact with the human body (when in use).

[0025] [Pattern body] 2, the pattern body 40 is applied to the back surface 24 (an example of one surface) of the sheet material 20. Therefore, the pattern body 40 is applied to the back surface 24 (an example of a contact surface) of the sheet material 20 that comes into contact with the human body of the user U. As an example, the pattern body 40 is composed of a collection of multiple ∞-shaped (or figure-8-shaped) unit patterns. However, the multiple unit patterns that make up the pattern body 40 do not have to have the shapes of this embodiment, and may be, for example, polygonal, circular, a composite shape of these, or other shapes. Furthermore, the multiple unit patterns that make up the pattern body 40 may be a collection of unit shapes that are different from each other. The ratio (area ratio) of the area of ​​the portion where the pattern body 40 is applied to the area of ​​the back surface 24 is designed to be, for example, 20% or more and 70% or less. The coating thickness of the pattern body 40 is set to, for example, 10 μm or more and 800 μm or less.

[0026] The material composition of the pattern body 40 includes a binder resin, a mixed powder made up of a plurality of metal oxides, and a polymer material, which will be described later.

[0027] The binder resin is, for example, a mixed resin in which titanium oxide is left in an acrylic resin. The binder resin has a function of adhering the pattern body 40 in which the mixed powder is dispersed to the sheet material 20 and a function of expanding and contracting in accordance with the expansion and contraction of the sheet material 20.

[0028] The mixed powder composed of a plurality of metal oxides contains at least silicon dioxide (silica) powder. The silicon dioxide powder has an average particle size of 7 μm or less, and the weight ratio (weight %) of the silicon dioxide powder in the mixed powder is 70 weight % or more. Furthermore, the mixed powder contains alumina, iron dioxide, feldspar, and quicklime, provided that the mixed powder satisfies the conditions described below (hereinafter referred to as the mixed powder conditions of this embodiment).

[0029] <Conditions for the mixed powder of this embodiment> Next, the conditions for the mixed powder of this embodiment will be described. The conditions for the mixed powder in this embodiment can be divided into the following first, second, and third conditions based on the effect of the wristband 10, i.e., the degree to which it increases the range of motion of the shoulder blades compared to when it is not used.

[0030] (First condition) The first condition is to satisfy the following condition: (1A) The proportion of silicon dioxide in the mixed powder is 70% by weight or more. (1B) The average particle size of the silicon dioxide powder is 7 μm or less. (1C) The mixed powder contains metal oxide powder other than silicon dioxide powder.

[0031] (Second condition) The second condition is based on the first condition and further requires that the following condition be met: (2A) The metal oxide powder other than silicon dioxide powder contained in the mixed powder is alumina powder. (2B) The average particle size of the alumina powder is 7 μm or less. (2C) The proportion of alumina powder in the mixed powder is 5% by weight or more and less than 10% by weight.

[0032] (Third condition) The third condition is that, assuming the second condition is met, the following condition must also be met: (3A) The plurality of metal oxides further includes powders of at least two or more metal oxides selected from the group consisting of iron trioxide, feldspar, and quicklime. (3B) The average particle size of each of the powders of at least two or more metal oxides is 7 μm or less. (3C) The proportion of powders of at least two or more metal oxides in the mixed powder is 5% by weight or more and less than 15% by weight.

[0033] The above is a description of the conditions for the powder mixture of this embodiment, and also of the configuration and functions of the wristband 10 of this embodiment.

[0034] <Wristband manufacturing method> Next, a description will be given of a method for manufacturing wristband 10 of this embodiment. Wristband 10 is manufactured by screen-printing a dispersion liquid (not shown) that will form pattern body 40 onto a tape-shaped cloth body (not shown) that will form sheet material 20. The method for manufacturing the wristband 10 of this embodiment includes, as an example, first to fourth steps, which are performed in the order indicated by the numbers.

[0035] [1st process] The first step is to prepare a mixed powder dispersion (not shown). The dispersion liquid contains a mixed powder dispersion liquid and a binder resin, i.e., the mixed powder dispersion liquid is a liquid obtained by removing the binder resin from the dispersion liquid. The mixed powder dispersion is prepared by adding a polymer material and water to silicon dioxide powder or the like in a weight ratio that satisfies the above-described conditions for the mixed powder of this embodiment, and stirring the mixture. The polymeric material has the function of improving the dispersibility of the mixed powder in water and / or suppressing deterioration. Examples of the polymeric material include a carboxylate-type polymeric surfactant, sodium hexametaphosphate, danyutan gum, and a solution of isothiazolone chloride, and the polymeric material may contain some or all of these. The weight ratio of the mixed powder, polymer material, and water in the mixed dispersion, ie, weight % of mixed powder: weight % of polymer material: weight % of water, is, for example, 30:1.8:68.2. The mixed powder, polymer material, and water are stirred so as to achieve the above weight ratio, thereby preparing a mixed powder dispersion.

[0036] [Second process] The second step is a step of preparing a dispersion by mixing the mixed powder dispersion prepared in the first step with a binder resin. The weight ratio between the mixed powder dispersion liquid prepared in the first step and the binder resin is, for example, 3 wt %:97 wt %. The mixed powder dispersion and the binder resin are stirred so as to achieve the above weight ratio, thereby preparing the dispersion.

[0037] [3rd step] The third step is a step of applying the dispersion liquid prepared in the second step to the tape-shaped cloth body that will become the sheet material 20. As an example, the third step is performed by screen-printing the dispersion liquid onto one surface of the tape-shaped cloth body. However, as long as the pattern body 40 can be applied in the third step, the application method is not limited to screen printing. For example, printing may be performed using an inkjet method or an offset printing method.

[0038] [4th step] The fourth step is a step of cutting the tape-like cloth body having the pattern body 40 prepared in the third step to a predetermined length and attaching a fastener 30 to one end of the surface of the cut tape-like cloth body on which the pattern body 40 is applied. When the fourth step is completed, the manufacturing of the wristband 10 of this embodiment is completed.

[0039] The above is a description of the method for manufacturing the wristband 10 of this embodiment.

[0040] <Effects of the wristband> Next, a description will be given of the effects of the wristband 10 of this embodiment. The effects of the wristband 10 of this embodiment are based on the following evaluation test. Therefore, before explaining the effects, the evaluation test will be explained.

[0041] [Evaluation test] The configuration of wristband 10 of this embodiment is as described above, but the inventors of the present application prototyped a large number of wristband samples using the composition of the mixed powder as a parameter (see samples 1 to 20 in the table shown in Figure 5), had 50 subjects wear these samples on both wrists, and investigated the range of motion of the scapula before and after wearing them. To measure the range of motion of the scapula, we asked the subject to sit in a chair with both arms spread out to the side so that they were parallel to the floor, and then move both arms backward while rotating them around the base of each arm, as shown in Figure 4. We then measured the average movement distance of the tips of both arms after wearing the sample, relative to the position of the tips of both arms (fingertips) before wearing the sample. The average movement distance of all subjects was then calculated from the average movement distance of each subject, and the evaluation was made as follows: If it is less than 2cm: NG (no effect) If it is 2cm or more but less than 4cm: G1 (effective) If it is between 4cm and 6cm: G2 (better effect than G1) If it is 6cm or more: G3 (better effect than G2)

[0042] Figure 5 is a table listing wristband samples with different composition ratios of the materials that make up the mixed powder pattern, along with the results of the evaluation test conducted by all subjects. The composition and weight ratio of the mixed powder mentioned above were obtained from this evaluation test.

[0043] Next, the configuration and effects derived from the results of the evaluation test will be considered.

[0044] [First effect] As shown in the table of Fig. 5, the samples that were judged to be ineffective as a result of the evaluation test were samples 1 to 3. In contrast, the samples that were judged to be effective were samples 4 to 20. In this table, samples 1 to 3 are comparative examples, and samples 4 to 20 are the present embodiment. Here, comparing Samples 1 to 3 with Samples 4 to 20, it can be seen that it depends on whether the weight ratio of silicon dioxide (silica) in the mixed powder is 70% or more. In other words, the inventors of the present application have concluded that in order to be effective, the weight ratio of silicon dioxide (silica) in the mixed powder needs to be 70% or more. As described above, this embodiment can increase the range of motion of the scapula compared to the comparative embodiment.

[0045] [Second effect] Furthermore, among samples 4 to 20, samples 9, 10, 12 to 17, and 19 received evaluation test results of G2 or G3, while the remaining samples 4 to 8, 18, and 20 received evaluation test results of G1. In other words, while samples 9, 10, 12 to 17, and 19 as well as samples 4 to 8, 18, and 20 all had the effect of increasing the range of motion of the scapula, there were differences in the degree of this effect. Here, when examining the differences between Samples 9, 10, 12 to 17, and 19 and Samples 4 to 8, 11, 18, and 20, the inventors of the present application noticed the difference in the weight ratio of alumina in the mixed powder. As a result, it was determined that for samples 4 to 8, 11, 18, and 20, the weight ratio of alumina was not greater than 5% by weight and less than 10% by weight, and for samples 9, 10, 12 to 17, and 19, the configuration that achieves the first effect, i.e., the weight ratio of alumina was greater than 5% by weight and less than 10% by weight, assuming that the weight ratio of silicon dioxide (silica) in the mixed powder was 70% or more, was the same. From the above, when the weight ratio of alumina in this embodiment is 5% by weight or more and less than 10% by weight, the range of motion of the scapula can be increased compared to when the weight ratio of alumina is less than 5% by weight or 10% by weight or more.

[0046] [Third effect] Furthermore, among samples 9, 10, 12-17, and 19, the results of the evaluation tests for samples 9, 10, 12, and 13 were G3, while the results of the evaluation tests for the remaining samples, 14-17, were G2. In other words, although samples 9, 10, 12, and 13 as well as samples 14-17 were found to have the effect of increasing the range of motion of the scapula, there were differences in the degree of this effect. Here, when examining the differences between Samples 9, 10, 12, and 13 and Samples 14 to 17, the inventors of the present application focused on the differences in the polymer materials (iron trioxide, feldspar, and quicklime) in the mixed powder. As a result, it was determined that samples 14 to 17 did not contain at least two or more metal oxides selected from iron trioxide, feldspar, and quicklime, or if they did contain them, their weight ratio was not between 5% and 10% by weight, while samples 9, 10, 12, and 13, assuming a configuration that achieves the first and second effects, contained at least two or more metal oxides selected from iron trioxide, feldspar, and quicklime, and their weight ratio was between 5% and 10% by weight. From the above, when at least two or more metal oxides selected from iron trioxide, feldspar, and quicklime are contained in this embodiment and their weight ratio is 5% by weight or more and less than 10% by weight, the range of motion of the scapula can be increased compared to when at least two or more metal oxides selected from iron trioxide, feldspar, and quicklime are not contained, or when they are contained but their weight ratio is 5% by weight or more and less than 10% by weight.

[0047] [Other effects] As described above, the thickness of the pattern body 40 of this embodiment is set to be 10 μm or more and 800 μm or less. Furthermore, the wristband 10 of this embodiment is set, for example, to be stretched by 5% or more from its natural length when it comes into contact with the human body. If the coating thickness is less than 10 μm, there is a risk that the pattern body 40 will peel off from the sheet material 20 due to expansion and contraction during use. Also, due to the relationship with the average particle size of the mixed powder, there may be portions in the thickness direction where the mixed powder is not present. For these reasons, the coating thickness is preferably 10 μm or more. Furthermore, if the coating thickness is 800 μm or more, there is a risk that the pattern body 40 will peel off from the sheet material 20 due to expansion and contraction during use. Furthermore, when the film thickness of the pattern body 40 is, for example, 100 μm or more and less than 800 μm, the unit patterns that make up the pattern body 40 will dig into the wrist of the user U when worn. Furthermore, multiple unit patterns are arranged side by side on the wristband 10. With this configuration, when the pattern body 40 is worn digging into the wrist, the surface side of the wrist is sandwiched between adjacent unit patterns along the circumferential direction of the wrist. This is thought to facilitate propagation of vibrations of the silicon dioxide or alumina caused by the mixed powder to the sandwiched surface side of the wrist.

[0048] The above is a description of the effects of the wristband 10 of this embodiment. The above is also a description of the wristband 10 of this embodiment.

[0049] <<Multiple Modifications>> Next, several modified examples will be described with reference to the drawings.

[0050] <Variation 1> FIG. 6 is a diagram of a user U performing exercises using the wristband 10 of this embodiment, a waistband 10A (another example of a contact body), and an ankle band 10B (another example of a contact body). In this embodiment, the wristband 10 is an example of a contact body, but as long as it is a member that comes into contact with the human body of the user U, for example, a waistband 10A and an ankle band 10B shown in FIG. 6 may be other examples of a contact body. The effects of the first modification are similar to those of the above-described embodiment.

[0051] <Variation 2> 7A and 7B are diagrams of a modified eye mask 10C (another example of a contact body). The eye mask 10C includes a main body 10C1 (an example of a long body) made of a sheet material, and elastic belts 10C2 fixed to both longitudinal ends of the main body 10C1 and connected to the main body 10C1. A pattern element 40C is applied to a contact surface 10C11 of the main body 10C1, which is the surface that comes into contact with the human body. The shape of the unit patterns of the pattern element 40C differs from the unit patterns of the previous embodiment (see FIG. 2), but the respective compositions are the same. The pattern body 40C is applied in a shape that surrounds the human eye.

[0052] The eyes can be kept warm by using the eye mask 10C of the modified example 2. In particular, since the patterned body 40C is shaped to surround the eyes, the eyes can be kept warm from all sides by using the eye mask 10C of the modified example 2. Other effects of the second modification are similar to those of the above-described embodiment.

[0053] The above is a description of several modified examples.

[0054] As described above, the above-described embodiment and several modified examples have been described as examples of the present invention, but the forms included in the technical scope of the present invention are not limited to these forms. For example, other examples of contact bodies may include clothing such as neckbands, hats, and shirts, as well as socks, gloves, and other clothing. Furthermore, the portion that comes into contact with the human body of the user U need not be the pattern bodies 40, 40C, but rather a coating film of the mixed powder and binder resin that make up the pattern bodies 40, 40C. From this perspective, for example, eyeglasses, wristwatches, earrings, and other personal accessories may also be used as examples of the contact body. Furthermore, any article that comes into contact with the user U's body may be used, for example, bedding (pillowcases, sheets, etc.). In view of the above, an example of a contact body may be any article that can be brought into contact with the human body. [Explanation of symbols]

[0055] 10 Wristband (an example of a contact body) 20 Sheet material 10A Waistband (another example of a contact body) 10B Ankle band (another example of a contact body) 10C Eye mask (another example of a contact lens) 10C1 Main body (example of long body) 10C11 Contact surface 10C2 Elastic Belt 22 Surface 24 Back side (example of one side) 30 Fasteners 40 Patterned Body 40C Patterned body U User

Claims

[Claim 1] (2) a pattern body applied to at least the contact surface of the sheet material that comes into contact with the wrist of the human body, (2A) having a thickness of 10 μm or more and 800 μm or less, and including a mixed powder composed of a binder resin and a plurality of metal oxides dispersed in the binder resin and having an average particle size of 7 μm or less, (2B) the plurality of metal oxides including silicon dioxide, the proportion of silicon dioxide in the mixed powder being 70% by weight or more, (2C) the plurality of metal oxides including alumina, the proportion of alumina in the mixed powder being 5% by weight or more and less than 10% by weight, the plurality of metal oxides including at least two or more metal oxides selected from diferric oxide, feldspar, and quicklime, the proportion of the at least two or more metal oxides in the mixed powder being 5% by weight or more and less than 15% by weight, and (2D) an area ratio of the pattern body to the contact surface being 20% ​​or more and 70% or less. and form pairs, The device is designed to be stretched by 5% or more from its natural length and to be worn by digging into one wrist at a time. When the device satisfies the above settings and is worn on both wrists of a human body, it extends the distance of movement of both arms toward the back from the base of both arms by 6 cm or more, thereby expanding the range of motion of the shoulder blades. Wristband-type contactor.

Images