Torso device

Abstract

The torso device comprises a body having a central opening between integral front and rear members for positioning a user's torso. The front member has an upper surface (table surface), and the front and rear members have surface areas for contacting the user's torso. The front and rear members are configured to apply a compressive force to the user's torso. The surface areas and compressive force of the front and rear members hold the front member in a desired position relative to the user when the user is positioned in the central opening, for example, perpendicular to the user's torso when the user moves from a seated to a standing position and / or when the user is walking, or parallel to the floor surface on which the user is standing, thereby facilitating the availability of a table surface convenient for a given task or activity.

Description

【Technical Field】 【0001】 (Priority) This application claims the benefit of priority based on U.S. Patent Application No. 17 / 169385, filed on February 5, 2021, under the same invention title, and all of its content is incorporated herein by reference. 【0002】 (Copyright) Part of the disclosure in this specification includes content subject to copyright protection. The copyright owner will not object to the reproduction of the patent application or the registered patent document or patent disclosure in the Patent and Trademark Office, but reserves all copyrights in other cases. 【0003】 (Technical Field) The devices disclosed in this specification relate to table surfaces or horizontal surfaces used by human users. More specifically, the device is worn by the user, has the structure of a table surface or a horizontal surface, and provides a table surface that facilitates a predetermined activity when the user is sitting, standing, or walking. 【Background Art】 【0004】 The use of tables or horizontal support members or elements is known in the art, and these are provided in the form of independent articles that can be used by positioning them so that human users can use the tables. Typically, a table or a horizontal support member is configured such that a user can sit on a chair or the like nearby and use its upper surface to perform a predetermined activity or work. Also known is a standing table configured as an independent article with a height so that a user can use its upper surface for a predetermined activity or work by standing nearby. 【0005】 Such known tables and horizontal support members or elements do not meet the needs of today's mobile society, such as the need for a table, horizontal support element, or horizontal surface to be usable while the user is walking, moving from one place to another, or while the user is standing. Conventional tables, whether sitting or standing, that require the user to move closer or be positioned nearby are no longer convenient. There is a need for tables that move with the user, allowing for convenient use of their table surface or horizontal surface, whether the user is moving, standing still, or stationary. [Overview of the Initiative] [Problems that the invention aims to solve] 【0006】 Therefore, there is a growing need for devices that meet today's users' growing needs, such as those that allow users to perform predetermined tasks and activities by ensuring that the table surface or horizontal support surface is always positioned in a convenient location for the user, even when the user is moving or does not position themselves in a specific location such as the table. [Means for solving the problem] 【0007】 The torso apparatus disclosed herein comprises a body having a central opening between a front member and a rear member. The front member and the rear member consist of a single, integral structure along the open end of the front member. The front member has a closed end. The front member has a rear edge, and the rear member has a front edge opposite to the rear edge of the front member. The rear edge of the front member and the front edge of the rear member each have surface areas configured to contact adjacent portions of the user's torso when the user's torso is positioned in the central opening. When the apparatus is relaxed, i.e., when the user's torso is not positioned in the central opening, the closed end of the front member is biased inward toward the rear member so as to contact the rear member even when the front member is not adjacent to the rear member. 【0008】 The central opening is configured to accommodate a human torso, and by moving the closed end away from the rear member from the relaxed state to the activated state, an open passage is formed that allows the user's torso to move into the central opening. When the user's torso is positioned inside the central opening, the surface areas of the front member and the rear member contact adjacent portions of the user's torso and apply a compressive force to the user's torso. The combination of the surface area contact and the compressive force maintains the torso device in a desired position relative to the user's torso, whether the user is moving from a seated to a standing position, and / or is standing, and / or is walking. The desired position is when the front member extends substantially perpendicular to the human torso, or substantially parallel to the floor on which the user is standing, without being supported by the user's hands and / or other elements or members. 【0009】 In one example, the desired position is maintained by a combination of contact of the surface area and compressive force when the user moves from a seated position to a standing position, and when the user is walking. 【0010】 In one example, the compressive force is approximately 0.2 ft·lb (foot-pounds = approximately 0.27 N·m) or more, preferably approximately 0.4 ft·lb (= approximately 0.54 N·m) or more. 【0011】 In one example, the desired position of the torso device relative to the user can be achieved without using the user's arms or hands, and without using any other fixing elements or means. 【0012】 In one example, the rear member includes an extension element that extends upward by a predetermined distance from the rear member. The extension element is configured to provide additional surface area contact with the back of the user's torso inside the central opening, and to improve the vertical rigidity of the torso device, thereby suppressing the downward movement of the front member against the user's torso inside the central opening. 【0013】 In one example, the extension element causes the height from the lower surface of the rear member to the upper surface of the extension element to be at least 1.5 times the thickness from the upper surface of the front member to the lower surface of the front member. 【0014】 In one example, the thickness of the front member can vary from the leading edge to the trailing edge. 【0015】 In one example, the front member has lip elements that protrude upward by a predetermined distance from the upper surface of the front member and are adjacent to one or both of the front edge and the rear edge. 【0016】 In one example, the front member and the rear member are composed of a first elastic material and a second elastic material, respectively, and the first elastic material has a higher density than the second elastic material. 【0017】 In one example, the front member mainly comprises a first elastic material and second elastic material as a secondary component. 【0018】 In one example, the first elastic material extends upward from the lower surface of the front member over a majority of the thickness direction between the lower surface and the upper surface of the front member. 【0019】 In one example, the rear member has the same configuration as the front member and includes a first elastic material and a second elastic material. 【0020】 This summary is provided to introduce selected concepts among those further described in the detailed description. This summary is not intended to identify key or essential features of the disclosure, nor is it intended to be used to limit the scope of the disclosure. 【Brief Description of the Drawings】 【0021】 [Figure 1] FIG. 1 is a front perspective view from a first side of an example of the torso device of the present disclosure. [Figure 2] FIG. 2 is a front perspective view from a second side of the torso device shown in FIG. 1. [Figure 3] FIG. 3 is a rear perspective view from a first side of the torso device shown in FIG. 1. [Figure 4] FIG. 4 is a rear perspective view from a second side of the torso device shown in FIG. 1. [Figure 5] FIG. 5 is a rear perspective view of the torso device shown in FIG. 1. [Figure 6] FIG. 6 is a partial cross-sectional view of an example of the torso device of the present disclosure having a sloped or inclined upper surface. [Figure 7] FIG. 7 is a partial cross-sectional view of an example of the torso device of the present disclosure having an upper surface edge lip. [Figure 8] FIG. 8 is a front perspective view from a first side of the torso device shown in FIG. 1 having an inner cover. [Figure 9] FIG. 9 is a front perspective view from a first side of the torso device shown in FIG. 1 having an outer cover. [Figure 10]Figure 10 is a front perspective view from the second side of the torso device shown in Figure 9. [Figure 11] Figure 11 is a front perspective view from the second side of the torso device shown in Figure 9. [Figure 12] Figure 12 is a schematic perspective view of an example of a torso device of the present disclosure, which includes shoulder straps. [Figure 13] Figure 13 is a schematic diagram illustrating the use of the torso device when the user is in a walking position. [Figure 14] Figure 14 is a schematic diagram illustrating the use of the torso device when the user is in an upright position. [Modes for carrying out the invention] 【0022】 The torso apparatus of this disclosure will be described with reference to the attached drawings, where the same elements are given the same reference numerals. 【0023】 The torso apparatus of the present disclosure generally comprises a body, the body having a front member, a rear member, a first side element extending laterally from one side of the rear member toward the front member and separate from the front member, and a second side element extending laterally from the other side of the rear member and integral with the front member. That is, the front member and the rear member constitute a single, integrated structure via the second side element. 【0024】 With this configuration, a central opening is formed between the front member and the rear member, and the central opening is sized to fit around the torso or waist of a human user. This allows a desired compressive or constricting force to be applied to the torso, and when the torso device is worn, it is possible to maintain the torso device in its horizontal position, for example, parallel to the floor and / or perpendicular to the user's torso. 【0025】 The torso device may include fixing or adjusting straps connecting the first side elements to adjacent portions of the front member, thereby allowing the user to fit the torso device more snugly around their torso or waist. 【0026】 The front member has a trailing edge having sufficient thickness to provide a surface area that contacts the front and sides of the user's torso, thereby preventing the front member from moving downward while the user is wearing it. 【0027】 The rear member has an extension element that extends upward by a predetermined distance from the rear member, providing a predetermined additional surface area for contact with the back of the user's torso, thereby maintaining the upper surface of the front member in a desired horizontal position and preventing the torso device from moving unintentionally downward while the user is wearing it. 【0028】 In one example, the front member is sized to have a predetermined top surface that can be easily used in front of the user when the user is sitting, walking, or standing, thereby enabling the user to perform predetermined tasks or activities that are possible with the presence of a horizontal surface, such as working with a laptop or tablet, playing games, fishing, writing, sewing, eating, or reading, without having to change their position, for example, by standing up and walking to a place with an independent tabletop or other independent horizontal surface. 【0029】 Figure 1 shows a torso device 10 of an example of the present disclosure. The torso device 10 comprises a body 11, the body 11 having a front member 12. The front member 12 is arranged vertically and has a front edge 14 that extends laterally along the front side of the front member 12. In one example, the front edge 14 has a curved surface that extends laterally or horizontally from a midpoint 16 of the front edge 14 toward both sides and curves toward the rear of the front member 12. In one example, the front edge 14 extends toward a first side 18 from the midpoint 16 to a rear member 20 and is integrated with the rear member 20. In one example, the front edge 14 extends toward a second side 22, which is the opposite side of the device, from the midpoint 16 to an end (closed end) 24. The end 24 is not separated from and connected to the rear member 20. 【0030】 The front edge 14 of the front member has a shape that curves outward in a convex manner. In the illustrated example, the front edge 14 has a curved shape, but the front edge 14 can have a different shape, and the case with a different shape is also included in the scope of the torso device of this disclosure. 【0031】 The front member 12 is positioned vertically and has a rear edge 26 that extends laterally or horizontally along the rear side of the front member 12 opposite to the front edge 14, from the end 24 of the front edge 14 to an open end 28. The open end 28 is integral with the rear member 20, forming an integral connection between the front member 12 and the rear member 20. In one example, the rear edge 26 has a shape that curves inward in a concave shape. This allows the rear edge 26 to fit against the front of a human torso or waist. 【0032】 The front member 12 has an upper surface (table surface) 30 and a lower surface 32 on the opposite side. The upper surface 30 and the lower surface 32 extend generally horizontally and parallel to each other along the top and bottom of the front edge 14 and rear edge 26 of the front member 12, respectively. 【0033】 The front member 12 has a thickness between its upper surface 30 and lower surface 32 that, when positioned to contact the front and sides of the user's torso, provides a predetermined surface area sufficient to prevent the torso device, such as the front member 12, from moving unintentionally downward. This ensures that the device attached to the user is held in the desired position, such that the upper surface remains perpendicular to the user's torso (and / or parallel to the floor on which the user is standing or walking), even when the user is standing or walking. 【0034】 Furthermore, the front member 12 has a thickness that provides a desired degree of rigidity, allowing the user to perform specific tasks or activities, such as working with a laptop, reading, working on a table, or eating. In addition, as will be described later, the predetermined thickness of the front member 12, in cooperation with the integrated rear member 20, and in cooperation with the shape and material of the front member 12 and the rear member 20, makes it possible to apply a desired compressive force to the torso of the user wearing the torso device. The combination of this compressive force and the surface area of ​​the front member 12 and the contact area with the user's torso maintains the front member 12 in the desired position, such that it is perpendicular to the user's torso and / or parallel to the floor surface on which the user stands or walks. 【0035】 In one example, the thickness of the front member 12 is at least about 5.08 cm (about 2 inches), preferably between about 7.62 cm and 20.32 cm (about 3 inches and 8 inches), and more preferably between about 10.16 cm and 15.24 cm (about 4 inches and 6 inches). In a preferred embodiment, it is about 12.7 cm (about 5 inches). The actual thickness of the front member 12 may vary from the exemplified dimensions depending on the type and stiffness of the material of the front member 12, and / or the specific tasks and activities performed by the user, but such variations in thickness are also within the scope of this disclosure. 【0036】 Although an example in which the front member 12 has a generally constant thickness has been described, the front member 12 can also have a different configuration, such as having a non-constant thickness, in order to provide predetermined features and / or functions required depending on the content of the user's specific work or activity, or to facilitate its execution. 【0037】 Figure 6 shows a cross-sectional view of an example of the front member 12 of the torso device 10 along the midpoint 16 (see Figure 1). In this example, the front member 12 is configured such that the thickness between the upper surface 30 and the lower surface 32 is different or changes, sloping from the front edge 14 to the rear edge 26. Such a change in thickness may extend along only a portion of the front member at a predetermined distance on one or both sides of the midpoint 16, or it may extend along the entire front member 12. 【0038】 In one example, the change in slope or thickness is about 0.635 cm (1 / 4 inch) or more, preferably about 1.27 cm to about 12.7 cm (about 1 / 2 inch to about 5 inches), and more preferably about 1.778 cm to about 10.16 cm (about 3 / 4 inch to about 4 inches). In a preferred embodiment, it is about 2.54 cm to about 5.08 cm (about 1 inch to about 2 inches). 【0039】 In such an example, the upper surface of the front member 12 is inclined inward, which is advantageous because it allows articles or objects placed on the upper surface 30 to be reliably moved inward toward the rear edge 26 and the user without easily falling off the torso device, such as by rolling off the front edge 14. 【0040】 In this embodiment, the trailing edge 26 maintains a predetermined surface area sufficient to maintain the position of the front member 12 relative to the user. Although the illustration shows an embodiment in which the thickness of the front member in the vertical direction is not constant, embodiments in which the thickness changes in steps or without an inclined surface are also included in the scope of the torso device of this disclosure. 【0041】 As will be described later, the front member 12 of the torso device can be made of a single material layer, or it can be made of two or more material layers. Figure 6 shows an example in which the front member 12 is made of two material layers, specifically an upper material layer 34 and a lower material layer 36. In this example, the inclined feature of the front member 12 is achieved by the upper material layer 34 which has an inclined upper surface 30 and a horizontal lower surface 38. The lower surface 38 of the upper material layer 34 is joined to the horizontal upper surface 40 of the lower material layer 36 which has a uniform thickness and is opposite to the lower surface 38. 【0042】 While specific embodiments of a torso apparatus in which the thickness of the front member 12 is not uniform have been described and illustrated, this is merely one example of a configuration provided as an example, and other configurations may be applied to the torso apparatus of this disclosure. For example, a configuration in which the thickness of the front member 12 is sloped such that, when measured along the midpoint 16 of the front member 12, it decreases from the rear edge 26 towards the front edge 14, i.e., in the opposite direction to that shown in Figure 6, may also be suitable for certain tasks and / or activities. Thus, all configurations of a torso apparatus in which the thickness of the front member 12 is not uniform are included in the scope of this disclosure. 【0043】 In another example, the torso device 10 is configured to have a front member 12 with an upper surface that is not inclined and has a non-uniform thickness. Figure 7 shows a cross-sectional view of an example of the front member 12 of the torso device 10, cut along a midpoint 16 (see Figure 1). In this example, the front member 12 includes a lip element 42. The lip element 42 protrudes outward from the upper surface 30 by a predetermined distance and extends toward the rear edge 26 by a predetermined distance from the front edge 14 or from a portion adjacent to the front edge 14. 【0044】 The lip element 42 may extend along only a portion of the front member 12, extending by a predetermined distance from one or both sides of the midpoint 16, or it may extend along the entire front member 12. Depending on the nature of the user's specific work and / or activities, the lip element 42 can have different configurations, such as a rounded top, a flat top, or a pointed top. 【0045】 In one example, the lip element 42 has a height of at least 0.635 cm (about 1 / 4 inch) from the top surface 30, preferably about 2.54 cm to about 12.7 cm (about 1 inch to 5 inches), and more preferably about 1.905 cm to about 10.16 cm (about 3 / 4 inch to about 4 inches). In a preferred embodiment, it is about 2.54 cm to about 5.08 cm (about 1 inch to about 2 inches). 【0046】 In such an example, since the lip element 42 is provided on the upper surface 30 of the front member 12, it is advantageous that an article or object placed on the upper surface 30 can be reliably positioned on the upper surface 30 between the lip element 42 and the user's torso, which is in contact with the trailing edge 26, without easily falling off the torso device during use. As will be described later, the front member 12 of the torso device may be made of a single layer of material or of two or more layers of material. 【0047】 Similar to the structure shown in Figure 6, Figure 7 shows an example in which the front member 12 is composed of two material layers, specifically an upper material layer 34 and a lower material layer 36. In this example, the lip element 42 is achieved by the upper material layer 34 having such lip element 42, an upper surface 30, and a horizontal lower surface 38. The lower surface 38 of the upper material layer 34 is joined to a flat, horizontal upper surface 40 of the lower layer 36, which has a certain thickness and is opposite to the lower surface 38. 【0048】 While specific embodiments of a torso device having a lip element 42 have been described and illustrated, these are merely examples provided for reference only, and other configurations can be applied to the torso device of this disclosure. For example, the torso device may be provided with a lip element that extends upward from the rear edge 26 or from a portion adjacent to the rear edge 26, and gradually transitions upward from the upper surface 30 of the front member 12 toward the front of the user's waist, thereby increasing the surface area in contact between the rear edge 26 of the front member 12 and the user's torso, and allowing the torso device to be better positioned relative to the user. 【0049】 Alternatively, multiple lip elements may be provided on each of the leading edge 14 and trailing edge 26 of the front member 12, or on portions adjacent to each. In some examples of the torso devices of this disclosure with alternative configurations, one or more lip elements are provided. Therefore, any configuration of a torso device having one or more lip elements extending from the front member 12 is included within the scope of the torso devices of this disclosure. 【0050】 Furthermore, although not shown in the figures, the torso apparatus of this disclosure may also be configured to include combinations of both a front member with a non-uniform gradient and thickness, as shown in Figure 6, and a lip element of the front member, as shown in Figure 7. Therefore, all combinations of such features are also included within the scope of the torso apparatus of this disclosure. 【0051】 As shown in Figure 1, the front member 12 has a horizontal width between its front edge 14 and rear edge 26, and this width varies depending on the measurement position. As illustrated, the width of the front member 12 increases from its minimum value at the end 24 to its maximum value at the midpoint 16, and from the midpoint 16 toward the open end 28 which is integrated with the rear member 20, the width decreases. 【0052】 In one example, the width of the front member 12 at the midpoint 16 is approximately 7.62 cm (approximately 3 inches) or more, preferably approximately 10.16 cm to approximately 40.64 cm (approximately 4 inches to approximately 16 inches), and more preferably approximately 15.24 cm to approximately 30.48 cm (approximately 6 inches to approximately 12 inches). In a preferred embodiment, it is approximately 22.86 cm (approximately 9 inches). 【0053】 The actual measured width of the front member 12 at the midpoint 16 may differ from the exemplified dimensions depending on the specific work and / or activity of the user, and such dimensional variations are also included within the scope of this disclosure. Furthermore, the width of the front member 12 also changes depending on a predetermined amount of pressure or compression applied to the user's torso during use in order to maintain the position of the torso device relative to the user's torso. 【0054】 The front member 12 has a maximum horizontal length obtained when measured perpendicular to the midpoint 16 along the upper surface 30. The length and width of the front member work together to provide a desired compressive or compressive force on the user's torso, thereby properly maintaining the position of the torso device relative to the user and enabling the user to perform work and / or activities on the upper surface 30. 【0055】 In one example, the maximum length of the front member 12 between the leading edge 14 and the trailing edge 26 is at least 35.56 cm (14 inches), preferably between 40.64 cm and 66.04 cm (16 inches and 26 inches), and more preferably between 45.72 cm and 60.96 cm (18 inches and 24 inches). In a preferred embodiment, the maximum length is approximately 50.8 cm (20 inches). 【0056】 The length dimensions of the front member 12 described above are for reference only, and the torso devices of this disclosure may take on different sizes depending on a predetermined amount of internal pressure or compression applied to the user's torso and / or the nature of the user's specific work and / or activity. Such torso devices of different sizes are also included in the scope of the torso devices of this disclosure. 【0057】 In one example, the upper surface 30 of the front member 12 of the torso device 10 may have one or more arbitrary surface features formed as part of the upper surface and integrated with it. The shape, size, and / or arrangement of such surface features are selected to facilitate the user performing specific tasks and / or activities when using the torso device. For example, such surface features may take the form of one or more protrusions configured to assist in holding or supporting a laptop or tablet. Alternatively, the upper surface 30 may be configured to accommodate contact, connection, or attachment to separate elements that function to facilitate the use of specific user devices or elements. 【0058】 Therefore, regardless of shape, size, and / or arrangement, all surface features or other elements provided on the upper surface 30 of the front member 12 are included in the scope of the torso apparatus of this disclosure. 【0059】 The rear member 20 of the torso device 10 extends laterally or horizontally from the portion integrally connected to the open end 28 of the front member 12, forming a structure integral with the front member 12, and extends to face the rear edge 26 of the front member 12, forming a user opening (opening cavity) 46. 【0060】 The user opening (central opening) 46 is formed or defined between the rear edge 26 of the front member 12, the open end 28 of the front member 12, and the vertically positioned front edge 48 of the rear member 20. The user opening 46 is accessed through an opening passage formed between the end 24 of the front member 12 and the rear member 20. 【0061】 In one example, the front edge 48 of the rear member 20 is configured to be flat or planar so as to be able to contact the back of the user's torso substantially in the width direction when the user's torso or waist is at the position of the opening 46. 【0062】 In one example, the horizontal length of the front edge 48 of the rear member 20, measured along the flat surface, is approximately 25.4 cm (approximately 10 inches) or more, preferably approximately 30.48 cm to approximately 45.72 cm (approximately 12 inches to approximately 18 inches), and more preferably approximately 33.02 cm to approximately 40.64 cm (approximately 13 inches to approximately 16 inches). In a preferred embodiment, the horizontal length is approximately 35.56 cm (approximately 14 inches). 【0063】 The actual measured horizontal length of the front edge 48 of the rear member 20 may differ from the exemplified dimensions depending on the desired contact area with the user, and such dimensional variations are also within the scope of this disclosure. 【0064】 Figures 2 and 3 illustrate the arrangement relationship between the torso device 10, the end 24 of the front edge 14 of the front member 12, and the end 24 of the front member 12 with respect to the rear member 20. As shown in the figures, the rear member 20 includes a side element 50 located at one end of the rear member 20 opposite to the open end 28 of the front member 12. The side element 50 is integral with the front edge 48 of the rear member 20 and extends laterally or horizontally by a predetermined distance from the front edge 48 of the rear member 20 to the end 52. 【0065】 The side elements 50 of the rear member 20 are adjacent to the outer surface of the end 24 of the front member 12 and have a curved shape that curves inward toward the front edge 14 of the front member 12, adjacent to and facing the side elements 50 but not connected to the side elements 50. In one example, the thickness between the upper surface 53 and the lower surface 54 of the side element 50 is approximately the same as the thickness of the adjacent and facing portions of the front edge 14 of the front member 12, thereby providing continuity between the side elements 50 and the front edge 14 of the front member 12 when the user is mounting the device. 【0066】 The features of the torso device of this disclosure are the integral structure of the front member 12 and the rear member 20 via an open end 28, the configuration of the opposing surfaces of the front member 12 and the rear member 20 that form an opening 46 which applies a desired compressive or compressive force when the user's torso is placed in the opening 46, and the provision of a desired amount of surface area that contacts the user's torso, and these working together, the front member 12 is maintained substantially perpendicular to the user's torso even when the user is moving, such as when the user gets up from a seated position, walks, or stands, thereby maintaining the torso device in the desired position. This makes it possible to maintain the desired position of the torso device relative to the user without requiring additional support from the user's hands or other elements or members. 【0067】 In one example, when the user's torso is positioned in the opening 46, the torso device can be maintained in the desired position by contacting approximately 75% or more, preferably approximately 85% or more, of the user's torso inside the opening 46, and by the surface area in contact with the user's torso and the compressive force applied to the user's torso. 【0068】 As shown in Figures 1 and 2, when in a relaxed state, the end 24 of the front member 12 of the torso device 10 is biased inward toward the rear edge 26, so it either contacts the front edge 48 of the rear member 20 or is positioned inside the side element 50 of the rear member 20, with a small gap of about 1.27 cm to 2.54 cm (about 0.5 inches to 1 inch) from the front edge 48 of the rear member 20. Therefore, when in a relaxed state, the side element 50 extends away from the end 24 along the front surface of the front member 12. 【0069】 Because the end 24 of the front member 12 is biased inward toward the rear member 20, the end 24 of the front member 12 is positioned inside the side element 50 of the rear member 20, and the curved surface of the rear edge 26 of the front member 12 faces the front edge 48 of the rear member 20, when a user is positioned inside the opening 46, an appropriate compressive force is applied to the user's torso, and appropriate surface area contact is achieved between the user's torso and the torso device. As a result, even while the user is walking or standing, the position of the torso device is appropriately maintained such that the front member 12 is perpendicular to the torso and / or parallel to the floor surface on which the user is standing or walking. 【0070】 A key feature of the torso device of this disclosure is that the proper position of the torso device relative to the user is maintained without the user having to use their arms or hands to maintain or adjust the position of the torso device. 【0071】 In one example, the torso device is configured to measure the force required when the ends 24 of the front member 12 and the rear member 20 move away from each other from a relaxed state. The measurement is performed by maintaining the front member 12 in a fixed position and moving the rear member 20 away from the front member 12 from a relaxed state. A tensile force gauge is attached to the portion of the rear member 20 where the side element 50 extends from the front edge 48 of the rear member 20. As the rear member 20 moves away from the relaxed state, the force is measured by the tensile force gauge. 【0072】 When the rear member 20 is pulled away from the front member 12, the following forces are measured as a function of the angle of the rear member 20 with respect to the fixed front member 12 (i.e., the angle with respect to the axis along the length of the fixed front member 12): For example, at an angle of approximately 1 to 4 degrees, the force is approximately 0.2 ft·lb (foot-pounds; approximately 0.27 N·m); at approximately 10 to 15 degrees, the force is approximately 0.3 ft·lb (approximately 0.41 N·m); at approximately 20 to 30 degrees, the force is approximately 0.4 ft·lb (approximately 0.54 N·m); at approximately 40 to 50 degrees, the force is approximately 0.5 ft·lb (approximately 0.68 N·m); and at approximately 51 to 60 degrees, the force is approximately 0.6 ft·lb b is approximately 0.81 N·m, and at approximately 62 to 74 degrees it is approximately 0.7 ft·lb (approximately 0.95 N·m), at approximately 75 to 80 degrees it is approximately 0.8 ft·lb (approximately 1.08 N·m), at approximately 81 to 84 degrees it is approximately 0.9 ft·lb (approximately 1.22 N·m), at approximately 85 to 87 degrees it is approximately 1.0 ft·lb (approximately 1.36 N·m), and at approximately 88 to 90 degrees it is approximately 1.1 ft·lb (approximately 1.49 N·m). 【0073】 Based on this force measurement information, the force threshold required to move the end 24 of the front member 12 from the leading edge 48 of the rear member 20 by a distance of approximately 5.08 cm to 10.16 cm (approximately 2 inches to 4 inches) from the relaxed state is at least 0.2 ft·lb (approximately 0.27 N·m). At this distance, the user cannot access the opening 46. The force threshold required to move the end 24 from the leading edge 48 by a distance of approximately 30.48 cm (approximately 12 inches) from the relaxed state is at least 0.4 ft·lb (approximately 0.54 N·m). This distance is sufficient to allow the user to access the opening 46. 【0074】 Based on this measurement information, the torso device can apply a compressive force of at least 0.2 ft·lb (approximately 0.27 N·m), preferably approximately 0.3 ft·lb to approximately 0.8 ft·lb (approximately 0.41 N·m to approximately 1.08 N·m), and more preferably approximately 0.4 ft·lb to approximately 0.7 ft·lb (approximately 0.54 N·m to approximately 0.95 N·m) to the user's torso located at the opening 46. 【0075】 The torso apparatus in this example can obtain the force measurements described above, provided that suitable measurements and elastic materials are used. However, different force measurements may be obtained due to differences in the size of the torso apparatus or the type of elastic material used. Different force measurements and the resulting different compressive forces are also included within the scope of the torso apparatus of this disclosure. 【0076】 Figures 3 and 5 show an example of a torso device 10 with an extension element 56 and a rear member 20. The extension element 56 extends laterally or horizontally along the planar portion of the front edge 48 of the rear member shown in Figures 1 and 2. Its extension length is at least about 25.4 cm (about 10 inches), preferably about 30.48 cm to about 45.72 cm (about 12 inches to about 18 inches), and more preferably about 33.02 cm to about 40.64 cm (about 13 inches to about 16 inches). In a preferred embodiment, its extension length is about 35.56 cm (about 14 inches). The extension element 56 extends upward from the front edge 48 of the rear member 20 by a predetermined distance. 【0077】 In cooperation with the leading edge 48 of the rear member 20, the extension element 56 contacts the back of the user's torso, providing an appropriate surface area, which allows the torso device to maintain its position relative to the user when the user is moving, such as when the user is sitting up, walking, or standing. 【0078】 Furthermore, the extension element 56 and the resulting increase in the contact area above the user's torso prevent the front member 12 from sagging downwards, and also maintain the proper vertical positioning of the front member 12 relative to the user's torso. 【0079】 In one example, the extension element 56 is oriented vertically and has a leading edge 58 (see Figures 1 and 2) that has a similar spread to the leading edge 48 of the rear member 20, forming a uniform vertical surface along the rear member 20. This allows the rear member 20 and the extension element 56 to perform the functions described above. In an alternative embodiment, the extension element 56 may be configured to adjust the degree of function provided by positioning its leading edge 58 inward or outward relative to the rest of the leading edge 48 of the rear member 20. 【0080】 In one example, the overall vertical height of the rear member 20 including the extension element 56 (the distance between the lower surface 60 of the rear member 20 and the upper surface 62 of the extension element 56) is at least about 15.24 cm (about 6 inches), preferably about 17.78 cm to about 35.56 cm (about 7 inches to about 14 inches), and more preferably about 20.32 cm to about 33.02 cm (about 8 inches to about 13 inches). In a preferred embodiment, this height is about 22.86 cm (about 9 inches). 【0081】 The actual measured height may differ from the exemplified dimension depending on the thickness of the front member 12 and / or the rear member 20, and / or the material applied to the torso device. Such dimensional variations are also included within the scope of the torso devices of this disclosure. For example, in certain embodiments, the combined height of the rear member 20 and extension element 56, as measured above, is at least 1.5 times, preferably at least 2 times, the thickness of the front member 12. In other specific embodiments, the combined height of the rear member 20 and extension element 56 is at least about 30.48 cm (about 12 inches) to fully exhibit the improved functionality described above. 【0082】 As shown in Figures 3 and 4, in one example, the width between the leading edge 58 and the perpendicularly positioned trailing edge 64 of the extension element 56 is the same as the width of the rear member 20 (the width measured between the leading edge 48 and trailing edge 66 of the rear member 20). In one example, the side elements 50 of the rear member 20 have the same width as the rear member 20. In one example, the width of the extension element 56 is at least about 1.27 cm (about 1 / 2 inch), preferably about 1.95 cm to about 10.16 cm (about 3 / 4 inch to about 4 inches), and more preferably about 2.54 cm to about 7.62 cm (about 1 inch to about 3 inches). In a preferred embodiment, this width is about 5.08 cm (about 2 inches). 【0083】 These width measurements may differ from the exemplified dimensions depending on factors such as the dimensions and shape of other elements or features, and / or the materials of a particular structure, and such dimensional variations are also included within the scope of the torso apparatus of this disclosure. 【0084】 The torso devices of this disclosure can be constructed of different materials to provide a favorable balance of surface area, friction surface, rigidity, compressive force, and / or comfort when worn by the user, and / or to provide public functionality for the user to perform work and / or activities. In one example, the torso device is preferably formed of an elastically deformable elastic material such as foam or sponge. Such an elastic material can deform under compressive force to form a relatively high friction surface against the user's torso, and in addition to the characteristics of surface area and compressive force, it facilitates holding the torso device in a favorable position during use. 【0085】 For example, a torso device is constructed from a foam material that offers an excellent balance between friction surface, rigidity, and user comfort during use. The type and density of the foam material can be changed depending on the specific structure of the torso device. For instance, if the torso device is constructed from a single foam material, the foam material must be selected to harmonize the levels of friction surface and rigidity while also providing user comfort. When applying a single foam material, a suitable foam material would have a hardness rate of 30 / 36 ILD and a density rate of 2.0 (approximately 32.0 kg / m³). 3 Examples include foam materials. 【0086】 However, other foam materials, such as closed-cell foam, can also be applied to such a single-foam configuration. The torso device of this disclosure can be constructed from a specific type of elastic material, but it can also be configured to employ an inflatable structure in which air is filled in part or all of the structure, so as to provide the functions of surface area, compressive force or compression force, and rigidity as described above. 【0087】 In one example, the torso device may be composed of two or more different foam materials. The torso device 10 shown in Figure 5 is formed using at least two different foam materials. The torso device 10 comprises a first foam material 70 extending from the lower surfaces of the front member 12 and the rear member 20, and a second foam material 72 extending from the first foam material 70 to the upper surface 30 of the front member 12. 【0088】 In one example, the first foam material 70 has a different density from the second foam material 72. In a preferred embodiment, the first foam material 70 has a higher density than the second foam material 72, resulting in a desirable enhancement of flexibility, rigidity, and friction surface. The second foam material 72 constituting the top surface 30 is capable of providing a desirable level of softness and comfort that enables the user to perform specific tasks and / or activities. 【0089】 A suitable foam material for constituting the first foam material 70 has a Shore A hardness of about 30 to about 100 and a density of about 10 kg / m². 3 ~about 30kg / m 3 It has a density of approximately 80. A preferred example is a first foam material 70 having a Shore A hardness of approximately 80 and a density of approximately 20 kg / m³. 3 It has a density of . A suitable foam material for constituting the second foam material 72 has a Shore A hardness of about 15 to about 50 and a density of about 5 kg / m 3 ~about 25kg / m 3 It has a density of approximately 35. A preferred example is a second foam material 72 with a Shore A hardness of approximately 35 and a density of approximately 18 kg / m³. 3 It has a density of . 【0090】 In one example, the first foam material 70 constitutes 50% or more of the thickness of the front and rear members, excluding the extension elements, and the second foam material 72 constitutes 50% or less of the thickness, excluding the extension elements. In one example, it is preferable that the first foam material constitutes about 55% to 95% of the total thickness and about 65% to 90% of the total thickness. In a preferred embodiment, the first foam material forms about 80% of the total thickness, and the second foam material forms the remaining thickness, excluding the extension elements. Generally, it is desirable that the torso apparatus contains more densely packed foam material to provide higher hardness and rigidity, while also providing a friction surface. All of these are preferable to ensure that the apparatus is maintained in the desired position relative to the user during use. The measured amounts or proportions of the first foam material 70 and the second foam material 72 used to form the torso apparatus of this disclosure vary depending on the specific different properties of the two different foam materials used, and such variations are also included in the scope of the torso apparatus of this disclosure. 【0091】 In the above example in which the torso device is formed from two different foam materials 70 and 72, the extension element 56 may be formed from one of the two different foam materials 70 and 72, or from a third foam material having a density different from both the first and second foam materials. For example, the extension element 56 may be formed from a foam material having a density higher than that of the first foam material 70, or the extension element 56 may be formed from a foam material having a density between that of the first and second foam materials, or the extension element may be formed from a foam material having a density lower than that of the second foam material 72. 【0092】 In one example, if the first and second foam materials each have the specific density characteristics described above, the extension element 56 is formed from a second foam material 72 having a relatively low density for the purpose of providing the user with improved comfort and conformability. Alternatively, the extension element 56 may be formed from a third foam material having a density higher than that of the second foam material but lower than that of the first foam material, thereby providing a moderate firmness that can improve waist support while still offering some degree of flexibility and comfort. 【0093】 While specific examples of torso devices formed from two or more different foam materials have been disclosed, the torso devices of this disclosure may be formed from different types of foam materials than those described above, and / or may be formed using different types of foam materials in different proportions. For example, a torso device may have an inflatable structure as described above to achieve the same or similar purposes and / or functions as described above, and all such embodiments of a torso device formed and configured in this way are included in the scope of the torso devices of this disclosure. Multiple different foam materials used to form the torso devices of this disclosure can be formed and combined by conventional methods, such as molding or adhesive assembly processes. 【0094】 Figure 8 shows an example of a torso apparatus 10 of the present disclosure, comprising an optional inner cover 80 positioned on at least a portion of the torso apparatus. In one example, the inner cover 80 is formed from a moisture-resistant or moisture-proof material for the purpose of protecting the foam material beneath it. Useful and suitable materials for forming the inner cover 80 include film materials made of plastics and other types of polymers that have moisture-resistant or moisture-proof properties and are transparent or opaque. 【0095】 In one example, the inner cover 80 is configured to fit onto the front member 12, and in a preferred embodiment, the inner cover 80 is configured to fit onto or cover the entire front member 12. In one example, the inner cover 80 is a removable element provided in the form of a sleeve having an open end 82 and a closed end 84, the open end 82 being configured to fit around the open end 28 of the front edge 14 of the front member 12 as shown in Figure 1, and the closed end 84 being configured to fit around the end 24 of the front member as shown in Figure 1. 【0096】 The inner cover 80 includes a zippered connector 86 that extends a partial length from the open end 82 along the bottom of the inner cover 80. The zippered connector 86 of the inner cover 80 is opened to form two zippered sections before the inner cover 80 is attached to the front member 12, thereby allowing the open end 28 of the front member 12 and the majority of the front member 12 adjacent to the midpoint 16 to be accommodated within the inner cover 80. By attaching the inner cover 80 to the front member 12, positioning the open end 82 of the inner cover 80 around the open end 28 of the front member 12, and engaging the two zippered sections to close the zipper, the front member 12 is covered and protected by the inner cover 80. In this way, the inner cover 80 is configured to be removable for cleaning or replacement as needed. 【0097】 In one example, the inner cover 80 is manufactured by a conventional process such as molding. While a specific configuration of the inner cover 80 has been illustrated and disclosed, the inner cover may have a different configuration for the same or similar purpose of protecting the underlying foam material of the torso apparatus from moisture. All such different inner cover configurations are included within the scope of the torso apparatus of this disclosure. Furthermore, while an inner cover 80 having the function of protecting the front member 12 of the torso apparatus from moisture has been disclosed, the use of an inner cover or additional inner cover may be configured or manufactured for the purpose of protecting the rear member 20 from moisture, and the use of such an inner cover or additional inner cover is also included within the scope of this disclosure. 【0098】 Figure 9 shows an example of a torso device 10 of the present disclosure, which includes an outer cover 90 positioned thereon. In one example, the outer cover 90 is formed from a material suitable for forming the outer surface of the torso device so as to provide a desired friction surface to the surface area of ​​the torso device that comes into contact with the user's torso during use. Suitable materials for forming the outer cover 90 include materials such as fibers, fabrics, plastics, polymers, and combinations thereof. In one example, the outer cover 90 is formed from a fibrous material. 【0099】 In one example, the outer cover 90 is configured to fit onto the torso device. In a preferred embodiment, it fits onto the entire torso device, i.e., both the front member 12 and the rear member 20 as shown in Figure 1. In such a preferred embodiment, the outer cover 90 not only serves to form the outer surface of the torso device but also provides a mounting position / fixing position and a mounting / fixing mechanism, as will be described later. In one example, the outer cover 90 has an upper part sewn to fit onto the upper surface, leading edge, and trailing edge of both the front member 12 and the rear member 20 including the extension element 56, and a lower part configured to fit onto the lower surfaces of the front member 12 and the rear member 20. 【0100】 A zippered connector 92 is provided on the outer cover 90 along the edge of the front member 12 at the intersection of the front edge 14 of the front member 12 and the bottom surface 32 (see Figure 1), and along the edge of the rear member 20 at the intersection of the rear edge 66 of the rear member 20 and the bottom surface 60 (see Figure 4), and is used to connect the top and bottom. The outer cover 90 includes a first closing end 94 configured to accommodate the end 24 of the front edge 14 of the front member 12 (see Figure 1), and a second closing end 96 configured to accommodate the side element 50 of the rear member 20 (see Figure 1). The zippered connector 92 extends between the first closing end 94 and the second closing end 96, and the torso device can be accommodated by opening the zipper to form two zippered sections before attaching the outer cover 90 to the rest of the front member 12 and the rear member 20. 【0101】 In one example, the outer cover 90 is manufactured by a conventional process depending on the type of material used; for example, if it is formed from a fibrous material, the outer cover 90 is manufactured by a sewing process. Although specific configurations of the outer cover 90 have been illustrated and disclosed, the outer cover may have different configurations for the same or similar purposes as described above, and all such different configurations of the outer cover are included in the scope of this disclosure. 【0102】 Figures 9 to 11 show the torso device 10 of the present disclosure with the outer cover 90 attached. The outer cover 90 is configured to include a first mounting element 98. The first mounting element 98 improves the usability of the torso device by providing, for example, a further mechanism for securing the torso device around the user's waist, in addition to the mechanism that provides the surface area and compressive force of the torso device. 【0103】 The first mounting element 98 is connected to the side end surface 100 of the outer cover 90, which is positioned to cover the side element 50 (see Figure 1) of the rear member 20. In one example, the first mounting element 98 is provided in the form of a male snap connector 102 attached to one end of a fabric loop 104, the other end of which is attached to the outer cover 90. In one example, the fabric loop 104 is sewn to the outer cover 90. 【0104】 The outer cover 90 extends along a portion of the length of the front edge 14 of the front member 12 and is configured to include a mounting position 106 located at a predetermined distance from the end 24 (see Figure 1) of the front member 12. 【0105】 The second mounting element 108 is provided in the form of a female snap connector 110 attached to one end of a fabric loop 112, the fabric loop 112 comprising a fabric belt 114 of a certain length attached thereto. In one example, the fabric belt 114 is configured to have a desired length to allow connection to a mounting position 106, and by engaging the male snap connector 102 with the female snap connector 110, the torso device 10 can be more securely fixed and attached around the user's waist. 【0106】 In one example, the mounting position 106 includes a Velcro® material on a fabric belt 114 and a Velcro® material configured to be detachable. 【0107】 With this configuration, the user first biases the end 24 of the inwardly curved front member 12 away from the side element 50 of the rear member 20, thereby allowing the user to insert their torso or waist into the opening 46, which is the space between the front member 12 and the rear member 20. As a result, the torso device 10 is fitted to the user. Once the user's waist is positioned in the opening 46, the torso device 10 elastically returns to the biased position relative to the user, as described above, and applies, for example, sufficient compressive force to the user in order to maintain the position of the front member 12 of the torso device 10 perpendicular to the user's torso while walking or standing. 【0108】 Optionally, the torso device 10 can be more securely fixed to the user by connecting the male snap member 102 and the female snap member 110 to each other. If the mounting position for the fabric belt 114 has not yet been determined, the male snap member 102 and the female snap member 110 can be connected before attaching the fabric belt 114 to the mounting position 106. In this case, the user attaches the fabric belt 114 to the mounting position 106 at a position where the desired secure fit is obtained. 【0109】 Alternatively, if the user has already worn the torso device 10, the fabric belt 114 can be pre-attached to the mounting position 106 in a position that provides the desired secure fit. In this case, the user only needs to connect the male snap connector 102 and the female snap connector 110 to further secure the torso device 10. 【0110】 Thus, a key feature of the torso device of this disclosure is its ability to further secure the torso device to the user, ensuring that the torso device does not shift position even when the user is moving, such as when moving from a seated position to a standing position, walking, or standing during use. While specific types of connecting members and attachments to the outer cover have been disclosed, other attachment mechanisms that enable the user to wear the torso device and function to form any attachment that further secures the torso device around the user's waist are also included in the scope of the torso device of this disclosure. 【0111】 Figure 9 shows an example of using an optional mounting element 116 on the outer cover 90 of the torso device. In one example, the optional mounting element 116 is configured as needed to facilitate or add some functionality to the torso device 10 for the user. In one example, the mounting element 116 is configured in the form of a bag or pocket for storing accessories. In one example, the mounting element 116 is mounted in a position easily accessible to the user, for example, along a portion of the front edge 14 of the front member 12 (see Figure 1). In one example, the mounting element 116 consists of a bag formed from the material that makes up the outer cover 90. The mounting element 116 is attached to the outer cover by conventional fastening means, for example, sewing, buttons, Velcro®, to provide a permanent or detachable connection to the outer cover. 【0112】 While an exemplary mounting element 116 has been specifically described and illustrated to have a particular configuration, different mounting elements may be configured to perform the same or similar functions, and all such different configurations of mounting elements used with an outer cover are included within the scope of the torso apparatus of this disclosure. 【0113】 Figure 12 shows a torso device 10 comprising an outer cover 90 and further comprising a pair of optional straps 120 connected to the outer cover 90. In one example, the straps 120 are formed of a suitable material that is useful for positioning or wearing over the user's shoulders to provide further vertical support to the torso device when using the torso device 10. Suitable materials for forming the straps 120 include materials such as cloth, fibers, leather, plastic, and polymer. In one example, the straps 120 are formed from a cloth or fiber material, such as a fiber or cloth belt. 【0114】 In one example, each strap 120 extends from an attachment point along the rear edge 66 of the rear member 20, over the top of the extension element 56, to an attachment point 122 along the front edge 14 of the front member 12. In one example, the attachment point 122 may be configured to permanently attach the strap 120 to the outer cover 90, for example by sewing, or it may be configured to detachably attach the strap 120 to the outer cover 90, for example by buttons or Velcro®. 【0115】 In one example, each strap 120 includes a front portion 124 extending a predetermined length from the front member 12 and a rear portion 126 extending a predetermined length from the rear member 20. Attachment elements 128, such as buckles, male and female snap connectors, are attached to one or both ends of the front and rear portions 124 and 126 of the strap for the purpose of forming a detachable attachment between the front and rear portions 124 and 126 of the strap, and / or for the purpose of adjusting the length of the strap 120 to provide a desired fit when worn by the user. 【0116】 The strap 120, configured in this way, provides a desired degree of vertical support to the torso device when worn by a user. If necessary, the strap 120 can be configured to allow for the placement of a cover (not shown) on, for example, a portion of the strap in front of the user, to provide some degree of privacy to the user or others. While a specific configuration of the strap 120 has been described and illustrated, different configurations of straps can be developed for the same or similar purposes, and all such different strap configurations are included within the scope of the torso device of this disclosure. 【0117】 Figures 13 and 14 illustrate the use of the torso device 10 by a user. Specifically, Figure 13 shows the use of the torso device 10 by a user while walking, illustrating how the contact surface area provided by the front member 12, the rear member 20, and the extension element 56, in cooperation with the compressive force applied to the user's torso by the front member 12 and the rear member 20 of the torso device, causes the front member 12 to extend substantially perpendicular to the user's torso or parallel to the floor surface 130 on which the user is walking, maintaining the torso device 10 in the desired position relative to the user. 【0118】 Figure 14 shows the use of the torso device 10 by a user while standing, illustrating how the contact surface area provided by the front member 12, the rear member 20, and the extension element 56, in cooperation with the compressive force applied to the user's torso by the front member 12 and the rear member 20, causes the front member 12 to extend substantially perpendicular to the user's torso or parallel to the floor surface 130 on which the user is walking, maintaining the torso device 10 in the desired position relative to the user. In this example, the torso device 10 is used to support a laptop computer 132 on the upper surface 30 of the front member 12. 【0119】 Various embodiments of the torso apparatus of this disclosure have been described with reference to the drawings. The descriptions of the embodiments are for illustrative purposes only and do not limit the scope of the torso apparatus of this disclosure. Accordingly, a person skilled in the art can make various modifications to the torso apparatus of this disclosure without departing from the claims.

Claims

[Claim 1] A torso device comprising a main body, the main body having a front member and a central opening provided between the front member and a rear member facing the front member, The front member has a closed end that is biased inward toward the rear member when relaxed, and the central opening is configured to accommodate the torso of a human user, and the user's torso can be moved into the central opening by moving the closed end from the relaxed state to a state where the closed end separates from the rear member. The torso device is configured to apply a compressive force to the user's torso when the user's torso is located in the central opening. The front member and the rear member are configured to have surface areas that come into contact with adjacent parts of the user's torso when the user's torso is located in the central opening. The contact of the surface area and the compressive force maintain the position of the torso device when the user moves from a seated position to a standing position, or when the user is walking, and the position of the torso device is maintained without additional support from the user's hands or arms, and when the torso device is in the position, the front member extends substantially perpendicular to the user's torso and / or substantially parallel to the floor on which the user is standing or walking. The front member and the rear member are each composed of a first elastic material and a second elastic material, respectively, wherein the first elastic material has a higher density than the second elastic material. Torso device. [Claim 2] The torso device according to claim 1, wherein the rear member has an extension element that extends upward by a predetermined distance from the rear member, the extension element increasing the surface area in contact with the back of the body and preventing the front member from moving downward relative to the body at the central opening. [Claim 3] The torso device according to claim 1, wherein the front member comprises a main part made of the first elastic material and a sub-part made of the second elastic material. [Claim 4] The torso device according to claim 3, wherein the first elastic material extends upward from the lower surface of the front member and occupies most of the thickness of the front member from the lower surface to the upper surface. [Claim 5] The first elastic material has a Shore A hardness of 30 to 100 and a density of 10 kg / m². ３ ~30 kg / m ３ The second elastic material has a density of 15 to 50 Shore A hardness and a density of 5 kg / m ３ ~25 kg / m ３ The torso apparatus according to claim 1, having the density of [Claim 6] The torso device according to claim 1, wherein the main body further comprises a side element that extends outward from the side of the rear member and is not attached to the front member, and the side element extends along the outer surface of the front member when in the relaxed state. [Claim 7] The torso device according to claim 2, wherein the height from the lower surface of the rear member to the upper surface of the extension element is at least 1.5 times the thickness between the upper surface of the front member and the lower surface of the front member. [Claim 8] The torso device according to claim 1, wherein the rear member has the same structure as the front member, which includes the first elastic material and the second elastic material.

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