Drape testing apparatus

Abstract

This drape testing apparatus comprises: a fixing body; a first moving body configured to support a central region of a fabric, to move in a direction opposite to a gravity direction, and to be fixed to the fixing body; and a second moving body configured to support a peripheral region different from the central region of the fabric, to move in the direction opposite to the gravity direction, and to move in the gravity direction while the first moving body is fixed to the fixing body.

Description

Drape test device

[0001] The disclosure relates to a drape test device.

[0002] Fabric drape refers to the ability of a fabric to deform when suspended under its own weight under certain conditions. Fabric drape, depending on luster, color, and / or texture, determines the appearance of the fabric and garment. U.S. Patent No. 5,097,713 discloses an apparatus for testing the strength of a fabric. The aforementioned background art was acquired or acquired during the course of developing the present disclosure and cannot necessarily be considered publicly known prior to the filing of the present disclosure.

[0003] One aspect of the disclosure may provide a drape testing device for scanning the appearance of a fabric according to its properties to collect data for estimating the properties of the fabric.

[0004] A drape test device may include a fixture, a first movable body configured to support a central region of a fabric and move in a direction opposite to the direction of gravity and be fixed to the fixture, and a second movable body configured to support a peripheral region different from the central region of the fabric and move in a direction opposite to the direction of gravity and move in the direction of gravity while the first movable body is fixed to the fixture.

[0005] In a state where the first moving body is not fixed to the fixed body, the first moving body and the second moving body can move in a direction opposite to the direction of gravity substantially simultaneously.

[0006] The second moving body may include a hole aligned with the first moving body.

[0007] The second moving body may include a protrusion configured to support the first moving body.

[0008] It may include a fixing member configured to magnetically fix the first moving body to the fixed body.

[0009] It may include an actuator configured to move the second moving body in a direction opposite to the direction of gravity.

[0010] It may include a coupler configured to couple the second moving body to the fixed body.

[0011] The fixture may include a first leg, a second leg opposite the first leg with respect to the first movable body, and an extension extending between the first leg and the second leg.

[0012] It may include a laser that irradiates a laser beam toward the center of the first moving body.

[0013] It may include a camera configured to acquire an image of the fabric and positioned beneath the first moving body.

[0014] It may include a texture scanner configured to scan a texture of the fabric.

[0015] It may include a light source that at least partially illuminates the fabric.

[0016] It may include a case configured to block external light and be detachable from the fixture.

[0017] According to one embodiment, a consistent and natural initial wrinkle pattern of the fabric can be formed. The drape test device according to one embodiment can obtain the results of draping the fabric in a more realistic environment by allowing the fabric to fall freely. According to one embodiment, the drape test device can perform the drape test in a miniaturized structure. The effects of the drape test device according to one embodiment are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

[0018] The above and other aspects, features and advantages of specific embodiments of the present disclosure will become apparent from the following detailed description with reference to the accompanying drawings.

[0019] FIG. 1 is a perspective view of a drape test device according to one embodiment.

[0020] Figure 2 is a plan view of a drape test device according to one embodiment.

[0021] FIG. 3 is a perspective view of a second moving body of a drape test device according to one embodiment.

[0022] Figure 4 is a side view of a drape test device according to one embodiment.

[0023] FIG. 5 is a side view of the drape test device before the second moving body is lifted according to one embodiment.

[0024] FIG. 6 is a side view of the drape test device after the second moving body has been lifted according to one embodiment.

[0025] FIG. 7 is a side view of the drape test device after the second mobile body has been dropped according to one embodiment.

[0026] Figure 8 is a perspective view of a drape test device according to one embodiment.

[0027] Figure 9 is an enlarged view of part A of Figure 4.

[0028] Hereinafter, embodiments are described in detail with reference to the attached drawings. However, the embodiments may be modified in various ways, and the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, or alternatives to the embodiments are included within the scope of the patent application.

[0029] The terms used in the examples are for the purpose of description only and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprises" or "has" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but should be understood to not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0030] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments pertain. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0031] In addition, when describing with reference to the attached drawings, identical components will be assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted. When describing embodiments, if a detailed description of a related known technology is judged to unnecessarily obscure the gist of the embodiment, the detailed description will be omitted.

[0032] Additionally, terms such as first, second, A, B, (a), (b), etc. may be used to describe components of the embodiments. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by the terms. When a component is described as being "connected," "coupled," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but another component may also be "connected," "coupled," or "connected" between each component.

[0033] Components included in one embodiment and components with common functions will be described using the same names in other embodiments. Unless otherwise stated, the descriptions given in one embodiment may also apply to other embodiments, and detailed descriptions will be omitted to the extent of overlap.

[0034] FIG. 1 is a perspective view of a drape test device according to one embodiment. FIG. 2 is a plan view of a drape test device according to one embodiment. FIG. 3 is a perspective view of a second moving body of a drape test device according to one embodiment. FIG. 4 is a side view of a drape test device according to one embodiment. FIG. 9 is an enlarged view of portion A of FIG. 4.

[0035] Referring to FIGS. 1 to 4, a drape test device (100) (which may be referred to as "device (100)" hereinafter) may be used to scan an outline according to a property of a fabric (e.g., a fabric (FB) of FIGS. 5 to 7) to collect data for estimating a property of the fabric. For example, the property of the fabric may include at least one or a combination of stretch-weft stiffness, stretch-wrap stiffness, shear stiffness, banding-weft stiffness, banding-wrap stiffness, or bending bias stiffness of the fabric. Here, the weft refers to the yarn in the crosswise direction of the fabric and may also be referred to as the weft yarn. In addition, the warp refers to the yarn in the longitudinal direction of the fabric and may also be referred to as the warp yarn.

[0036] The device (100) can measure and / or evaluate changes in the appearance (e.g., deformation) of a fabric (FB) due to its own weight under certain conditions. The device (100) can be placed on a substantially flat surface (e.g., the ground) in an environment where gravity acts.

[0037] The device (100) may include a stationary structure (110). The stationary structure (110) may be substantially stationary relative to other components (e.g., the first movable structure (130) or the second movable structure (140)).

[0038] The fixture (110) may include a base (111). The base (111) may be configured to support other components (e.g., the first leg (112), the second leg (113), or the light source (L)). The base (111) may include an opening to which a fixing means (e.g., a screw) for fixing other components is fixed. The base (111) may be configured to provide a support surface (e.g., a +Z normal direction surface) on which other components may be placed. The base (111) may include an opening to which a fixing means (e.g., a screw) for fixing other components is fixed. The base (111) may include a plate shape, but is not limited thereto, and may include various shapes. The base (111) may include a metal material. For example, the base (111) may include aluminum. Other components may be disposed on the base (111).

[0039] The fixture (110) may include a first leg (112). The first leg (112) may be disposed on a base (111). The first leg (112) may be disposed on a first portion (e.g., a -Y-direction edge portion) of the base (111). The first leg (112) may extend from the base (111) in a normal direction (e.g., a +Z direction) of the base (111). The first leg (112) may be supported by the base (111). The first leg (112) may include a metal material. For example, the first leg (112) may include aluminum.

[0040] The fixed body (110) may include a second leg (113). The second leg (113) may be disposed on the base (111). The second leg (113) may be disposed on the base (111) at a position opposite to the first leg (112) with respect to the first movable body (130). The second leg (113) may be disposed on a second portion (e.g., a +Y-direction edge portion) of the base (111). The second leg (113) may extend from the base (111) in a normal direction (e.g., +Z direction) of the base (111). The second leg (113) may be supported by the base (111). The second leg (113) may include a metal material. For example, the second leg (113) may include aluminum.

[0041] In an embodiment not shown, the fixture (110) may include only a single leg (e.g., a first leg (112)). In an embodiment not shown, the fixture (110) may include three or more legs (e.g., a first leg (112), a second leg (113), and a third leg, etc.) arranged at different portions of the base (111).

[0042] The fixture (110) may include an extension (114). The extension (114) may extend between the first leg (112) and the second leg (113). The extension (114) may be connected to a first end (e.g., a +Z direction end) of the first leg (112). The extension (114) may be connected to a first end (e.g., a +Z direction end) of the second leg (113). The extension (114) may be disposed on the base (111). Another component (e.g., a first movable body (130) or a second movable body (140)) may be disposed between the base (111) and the extension (114).

[0043] The extension (114) may include a solid having a polygonal cross-sectional shape (e.g., a square plate). The extension (114) may be substantially flat. The extension (114) may include a metallic material. For example, the extension (114) may include aluminum. The extension (114) may be substantially stationary in place.

[0044] The device (100) may include a first movable body (130). The first movable body (130) may be configured to move relative to a fixed body (110). The first movable body (130) may be at least partially supported by a second movable body (140). The first movable body (130) may be configured to move (e.g., ascend) in a direction substantially opposite to the direction of gravity (e.g., in the +Z direction). When the first movable body (130) is moved in a direction substantially opposite to the direction of gravity (e.g., in the +Z direction), the first movable body (130) may be configured to be fixed to the fixed body (110). The first movable body (130) may be configured to be fixed to the extension (114) when moved to a certain position (e.g., the second height (D2) of FIG. 6). For example, the first movable body (130) may include a magnet. For example, the first moving body (130) may be configured to be fixed to the extension (114) by a magnet when it moves from the base (111) to a height substantially equal to a certain height (e.g., the second height (D2) of FIG. 6).

[0045] The first moving body (130) may be configured to provide a support surface on which a fabric (e.g., the fabric (FB) of FIGS. 5 to 7) may be placed. For example, the first moving body (130) may be configured to support a region (e.g., a central region) of the fabric. For example, the support surface (e.g., a top surface) of the first moving body (130) may comprise a solid having a substantially circular or oval cross-sectional shape (e.g., a disk). In an embodiment not shown, the first moving body (130) may comprise a solid having a polygonal cross-sectional shape (e.g., a square plate). In an embodiment not shown, the first moving body (130) may comprise a substantially spherical or hemispherical solid. The support surface of the first moving body (130) may be substantially flat. The first moving body (130) may comprise a metallic material. For example, the first moving body (130) may include aluminum.

[0046] The device (100) may include a second movable body (140). The second movable body (140) may be configured to move relative to the fixed body (110). The second movable body (140) may be configured to move (e.g., ascend) substantially in a direction opposite to the direction of gravity (e.g., in the +Z direction). The second movable body (140) may be configured to move (e.g., drop) substantially in the direction of gravity (e.g., in the -Z direction). While the first movable body (130) is fixed to the fixed body (110) or the extension (114), the second movable body (140) may be configured to move substantially in the direction of gravity. Movement of the second movable body (140) relative to the fixed body (110) may induce natural and / or consistent appearance changes of the fabric (FB).

[0047] The second moving body (140) may include a first plate (141). The first plate (141) may be configured to support a region (e.g., a central region) and a different region (e.g., a peripheral region) of a fabric (e.g., a fabric (FB) of FIGS. 5 to 7) supported by the first moving body (130). The first plate (141) may be configured to move in a direction substantially opposite to the direction of gravity (e.g., a +Z direction). When the first plate (141) moves in a direction substantially opposite to the direction of gravity (e.g., a +Z direction), the first moving body (130) may move in a direction substantially opposite to the direction of gravity at the same time. While the first plate (141) moves in a direction substantially opposite to the direction of gravity, the height of one side of the first moving body (130) (e.g., the +Z normal direction side) and the height of one side of the first plate (141) (e.g., the +Z normal direction side) may be substantially the same.

[0048] The first plate (141) may be configured to move (e.g., drop) substantially in the direction of gravity (e.g., in the -Z direction). When the first plate (141) moves substantially in the direction of gravity, the first movable body (130) may be configured to be fixed relative to the extension (114). When the first plate (141) moves (e.g., drops) substantially in the direction of gravity (e.g., in the -Z direction), the support force of the first plate (141) on the fabric is reduced or eliminated, and an area of ​​the fabric supported by the first plate (141) (e.g., a peripheral area) may flow down in the direction of gravity.

[0049] The first plate (141) may extend around a central axis (e.g., Z-axis) of the first plate (141). For example, the first plate (141) may include an annular shape having an inner edge and an outer edge. The central axis of the first plate (141) may substantially coincide with the central axis of the first moving body (130).

[0050] The first plate (141) may be positioned on the outside of the first moving body (130). Before the first plate (141) moves (e.g., rises) in a direction substantially opposite to the direction of gravity (e.g., +Z direction), the position of the first plate (141) (e.g., height from the base (111)) may be substantially the same as the position of the first moving body (130) (e.g., height from the base (111)).

[0051] The second moving body (140) may include a first hole (142). The first hole (142) may be configured to at least partially accommodate the first moving body (130). The first hole (142) may be substantially circular or oval. The shape of the first hole (142) is not limited to circular or oval, and may include a shape complementary to the shape of the first moving body (130). The first hole (142) may be arranged in a central region of the first plate (141). The first hole (142) may be defined by an inner edge of the first plate (141). The first hole (142) may penetrate a first side (e.g., a +Z direction side) of the first plate (141) and a second side (e.g., a -Z direction side) opposite to the first side. The central axis (e.g., Z-axis) of the first hole (142) may substantially coincide with the central axis (e.g., Z-axis) of the first moving body (130).

[0052] The second moving body (140) may include a plurality of second holes (143). The plurality of second holes (143) may penetrate a first side (e.g., a +Z direction side) of the first plate (141) and a second side (e.g., a -Z direction side) opposite to the first side. Air may flow through the plurality of second holes (143). For example, when the first plate (141) falls, air on the second side of the first plate (141) may flow to the first side of the first plate (141) through the plurality of second holes (143), thereby reducing air resistance of the first plate (141). Accordingly, the fabric may exhibit a desired shape change (e.g., a natural and consistent shape change) when flowing in the direction of gravity.

[0053] The plurality of second holes (143) may have a substantially circular or elliptical cross-sectional shape. The plurality of second holes (143) are not limited to circular or elliptical shapes and may have any shape suitable for passing air. For example, the plurality of second holes (143) may have a polygonal shape such as a square or an octagon.

[0054] A plurality of second holes (143) may be arranged around a central axis of the first plate (141) and in a circumferential direction of the first plate (141). The second moving body (140) may include a plurality (e.g., seven) rows of second holes (143) at various distances from the central axis of the first plate (141) between an inner edge and an outer edge of the first plate (141). The second holes (143) of a certain row may be arranged close to the inner edge of the first plate (141) (e.g., at a first distance). The second holes (143) of a certain row may be arranged a distance (e.g., a second distance greater than the first distance) from the outer edge of the first plate (141). Each size of the plurality of second holes (143) may be smaller than the size of the first hole (142).

[0055] The second moving body (140) may include a plurality of second plates (144). For example, one second plate among the plurality of second plates (144) may be disposed on a first side edge region of the first plate (141), and another second plate may be disposed on a second region opposite to the first side edge region of the first plate (141). In an embodiment not shown, the second moving body (140) may include three or more second plates (144) each disposed on different side edge regions of the first plate (141). In an embodiment not shown, the second moving body (140) may include a single second plate (144). Each end region of the plurality of second plates (144) may be connected to a side surface of the first plate (141). The plurality of second plates (144) may include a metal material. For example, the plurality of second plates (144) may include aluminum. The plurality of second plates (144) may each be arranged to face a corresponding leg (e.g., the first leg (112) or the second leg (113) or the third leg (not shown)). For example, one second plate (144) may be arranged on the inner side (e.g., in the +Y direction) of the first leg (112) and face the first leg (112), and another second plate (144) may be arranged on the inner side (e.g., in the -Y direction) of the second leg (113) and face the second leg (113). The plurality of second plates (144) may have a surface in a normal direction (e.g., in the X direction and / or the Y direction) that is different from a normal direction (e.g., in the Z direction) of the surface of the first plate (141). A plurality of second plates (144) may be parallel to the first leg (112) and / or the second leg (113), respectively.

[0056] The second moving body (140) may include a protrusion (145). The protrusion (145) may be configured to support the first moving body (130). Before performing a drape test, a user may place the first moving body (130) on the protrusion (145). The protrusion (145) may be positioned in a central region of the first plate (141). The protrusion (145) may be configured to protrude from an inner edge of the first plate (141) toward a central axis (e.g., a Z-axis) of the first plate (141). The protrusion (145) may be formed as a step on the inner edge of the first plate (141). The protrusion (145) may be formed along an edge of a lower region (e.g., a Z-axis direction end region) of the inner edge of the first plate (141). The protrusion (145) may be a step, but is not limited thereto, and the protrusion (145) may have any shape that protrudes from the inner edge of the first plate (141).

[0057] The combined thickness of the protrusion (145) (e.g., thickness in the Z-axis direction) and the thickness of the first moving body (130) (e.g., thickness in the Z-axis direction) may be substantially the same as the thickness of the first plate (141) (e.g., thickness in the Z-axis direction). When the protrusion (145) supports the first plate (141), the height of the first surface (e.g., +Z normal direction surface) of the first moving body (130) and the height of the first surface (e.g., +Z normal direction surface) of the first plate (141) may be substantially the same. The protrusion (145) may include a metal material. For example, the protrusion (145) may include aluminum.

[0058] The protrusion (145) may be positioned at any position on the inner side of the first plate (141) that can support the first moving body (130). For example, in an embodiment not shown, the protrusion (145) may be positioned on the lower side (e.g., on the -Z normal direction side) of the first plate (141) and configured to protrude toward the central axis of the first plate (141). The protrusion (145) may be configured to support the first moving body (130) on the lower side of the first plate (141). When the protrusion (145) is positioned on the lower side of the first plate (141), the thickness (e.g., the thickness in the Z-axis direction) of the first moving body (130) may be substantially the same as the thickness (e.g., the thickness in the Z-axis direction) of the first plate.

[0059] The fixed body (110), the first movable body (130), and the second movable body (140) may have a color (e.g., black) with a saturation lower than that of the fabric (e.g., the fabric (FB) of FIGS. 5 to 7). This may increase the discernibility of the fabric to the fixed body (110), the first movable body (130), and the second movable body (140) by an optical element (e.g., a camera (190)). For example, the fixed body (110), the first movable body (130), and the second movable body (140) may be anodized.

[0060] The device (100) may include a fixing member (150). The fixing member (150) may be configured to fix a fabric (e.g., the fabric (FB) of FIGS. 5 to 7) to the extension member (114). The fixing member (150) may be configured to fix a first movable body (130) to the extension member (114). The fixing member (150) may include various structures (e.g., an electromagnet, an anchor, etc.) that may fix the first movable body (130) and / or the fabric to the extension member (114). For example, the fixing member (150) may allow the first movable body (130) to be directly magnetically fixed to the extension member (114). For example, the fixing member (150) may allow the first movable body (130) to be fixed to the extension member (114) by magnetic coupling between other components (e.g., the first fixing member (151) and the second fixing member (152)). The fixing member (150) may reduce or prevent undesirable shape changes of the fabric due to air flow around the fabric while the first plate (141) is dropped. The fixing member (150) may be configured to fix the first movable body (130) to the fixing member (110) or the extension member (114) when the first movable body (130) moves to a certain height from the base (111) (e.g., a height substantially equal to the second height (D2) of FIG. 6). When the first moving body (130) is fixed to the fixed body (110) or the extension (114), the second moving body (140) can move substantially in the direction of gravity (e.g., in the -Z axis direction) with respect to the first moving body (130).

[0061] The fixing member (150) may include a first fixing element (151) disposed on the extension member (114). The first fixing element (151) may include a magnet. The first fixing element (151) may be disposed on a lower surface (e.g., a -Z-direction surface) of the extension member (114). The first fixing element (151) may be disposed substantially on a central axis (e.g., a Z-axis) of the first plate (141). Although the first fixing element (151) is illustrated as being disposed on the lower surface of the extension member (114), it is not limited thereto and may be disposed at any location capable of fixing the first moving body (130) and / or the fabric.

[0062] The fixed member (150) may include a second fixed element (152) disposed on the first moving body (130). The second fixed element (152) may include a magnet. The second fixed element (152) may be disposed on a lower surface (e.g., a -Z direction surface) of the first moving body (130). The second fixed element (152) may include a magnet.

[0063] When the first moving body (130) moves from the base (111) to a certain height (e.g., substantially the same height as the second height (D2) of FIG. 6), the first fixing element (151) and the second fixing element (152) can be magnetically coupled. The first moving body (130) and / or the fabric (FB) can be fixed between the first fixing element (151) and the second fixing element (152).

[0064] The fixture (110) may include a plurality of linear guides (120). The plurality of linear guides (120) may be configured to guide linear movement of the second movable body (140). For example, the plurality of linear guides (120) may guide the second movable body (140) to fall in a substantially gravitational direction. For example, the plurality of linear guides (120) may guide movement of the second movable body (140) in a direction opposite to the substantially gravitational direction.

[0065] A plurality of linear guides (120) may each include a rail (121) and a slider (122) configured to slide relative to the rail (121). One rail (121) may be arranged on the first leg (112), and another rail (121) may be arranged on the second leg (113). The slider (122) may be arranged on a corresponding second plate (144).

[0066] The rail (121) may extend along the inner surface of the first leg (112) or the second leg (113) in the extension direction (e.g., in the Z direction) of the first leg (112) or the second leg (113). The slider (122) may be disposed in a lower region of the outer surface of the second plate (144). In an embodiment not shown, the rail (121) may be disposed on the second plate (144), and the slider (122) may be disposed on the first leg (112) or the second leg (113).

[0067] The device (100) may include an actuator (160) configured to move (e.g., raise) the second moving body (140) substantially in a direction opposite to the direction of gravity (e.g., in the +Z-axis direction). The actuator (160) may be disposed on the first leg (112) or the second leg (113). The actuator (160) may be configured to cause the slider (122) to slide substantially in a direction opposite to the direction of gravity relative to the rail (121). The actuator (160) may be configured to cause the first plate (141) to fall freely substantially in the direction of gravity (e.g., in the -Z-axis direction) when the first plate (141) has moved to a height substantially equal to a certain height (e.g., the second height (D2) of FIG. 6). The actuator (160) may be configured so as not to substantially interfere with the falling of the second moving body (140) when the second moving body (140) falls. For example, the actuator (160) may be configured to be engaged with the second plate (144) or the slider (122) while the second moving body (140) is raised, and the engagement may be released when the first plate (141) is moved to a certain height (e.g., the second height (D2) of FIG. 6).

[0068] The device (100) may include a coupler (170). The coupler (170) may be configured to couple a second movable body (140) to a fixed body (110). The coupler (170) may be configured to control the falling of the second movable body (140). For example, in a coupled state, the second movable body (140) may not move relative to the fixed body (110), while in a decoupled state, the second movable body (140) may move relative to the fixed body (110). For example, the coupler (170) may be configured to couple the second movable body (140) to the fixed body (110) when the first plate (141) has moved to a height substantially equal to a predetermined height (e.g., the second height (D2) of FIG. 6), and the second movable body (140) may be configured to fall when the coupler (170) has decoupled the fixed body (110) and the second movable body (140).

[0069] The coupler (170) may include a first electromagnetic element (171) and a second electromagnetic element (172) configured to be electromagnetically coupled to each other. For example, the first electromagnetic element (171) and the second electromagnetic element (172) may each include an electromagnet. While current flows through the first electromagnetic element (171) and the second electromagnetic element (172), respectively, the first electromagnetic element (171) and the second electromagnetic element (172) remain coupled to each other, whereas when current flowing through at least one of the first electromagnetic element (171) and the second electromagnetic element (172) is reduced or blocked, the first electromagnetic element (171) and the second electromagnetic element (172) may be separated from each other. The first electromagnetic element (171) may be placed on top of one leg (e.g., the first leg (112) or the second leg (113)), and the second electromagnetic element (172) may be placed on the bottom of one second plate (144) corresponding to the leg.

[0070] In one embodiment, the coupler (170) may include an electromagnetic element and a magnetic element. For example, the electromagnetic element may include an electromagnet, and the magnetic element may include a permanent magnet. While current flows through the electromagnetic element, the electromagnetic element and the magnetic element remain coupled, whereas when the current flowing through the electromagnetic element is reduced or blocked, the electromagnetic element and the magnetic element may be separated from each other. For example, the electromagnetic element may be implemented as one of elements 171 and 172 illustrated in FIGS. 1, 4, and 7, and the magnetic element may be implemented as another element 171 and 172 illustrated in FIGS. 1, 4, and 7.

[0071] The device (100) may include a laser (180). The laser (180) may be configured to irradiate laser light toward the central axis (e.g., Z-axis) of the first plate (141) and / or the central axis (e.g., Z-axis) of the first moving body (130) and / or the second moving body (140) when the first moving body (130) and / or the second moving body (140) are at a position before they rise (e.g., a position of the first height (D1) in FIG. 5). The user may position the fabric (e.g., the fabric (FB) in FIGS. 5 to 7) such that the center of the fabric substantially coincides with the center of the first moving body (130) through the position where the laser light is irradiated.

[0072] The laser (180) may be positioned on the extension (114). The extension (114) may include a hole (not shown) through which the laser light may pass so that the laser (180) may irradiate laser light onto the central axis of the first moving body (130). The fixing (150) may include a hole (not shown) through which the laser light may pass so that the laser (180) may irradiate laser light onto the central axis of the first moving body (130).

[0073] In an embodiment not shown, the laser (180) may be positioned at any location that can irradiate laser light toward the substantial center of the first moving body (130). In this case, the extension (114) or the fixed part (150) may not include a hole for the laser light to pass through. For example, although the laser (180) is shown in the drawing as being positioned on the central axis of the extension (114), the laser (180) may be positioned at another location on the extension (114). The laser (180) may be oriented to irradiate laser light on the central axis of the first moving body (130) from any location on the extension (114).

[0074] In an embodiment not shown, the laser (180) may be located on a component other than the extension (114), such as the case (C) of FIG. 8. The laser (180) located on the other component may be oriented to irradiate laser light on the central axis of the first moving body (130).

[0075] In an embodiment not shown, the device (100) may not include a laser (180). A user may position a fabric (e.g., the fabric (FB) of FIGS. 5-7) at a desired location on the first plate (141) even if the device (100) does not include a laser (180). For example, the fabric may include a mark (e.g., a “+” mark) that runs through the substantial center of the fabric, and if this mark extends to meet an edge portion of the fabric, the user may position the fabric such that the mark coincides with the substantial center of the first plate (141).

[0076] The device (100) may include a camera (190). The camera (190) may be positioned on the base (111). The camera (190) may be positioned between the base (111) and the first moving body (130). The camera (190) may be positioned substantially on the central axis (e.g., Z-axis) of the first moving body (130). In an embodiment not shown, the camera (190) may be positioned at any position capable of acquiring an image of the fabric. The camera (190) may be configured to capture an image of the fabric by photographing a lower side (e.g., -Z-direction side) of the first moving body on the base (111). When the camera (190) is positioned below the first moving body, the device (100) may be more compact than when the camera (190) is positioned above the first moving body. The camera (190) may be configured to have an angle of view that allows it to capture an image of the fabric at a relatively close distance (e.g., a distance equal to the second height (D2) in FIG. 6). The angle of view of the camera (190) may be configured to have an appropriate value depending on the distance between the elevated extension (114) and the camera (190) (e.g., the second height (D2) in FIG. 6).

[0077] Referring to FIG. 9, the device (100) may include a texture scanner (192). The texture scanner (192) may be configured to scan the texture of a fabric (e.g., the fabric (FB) of FIGS. 5 to 7). The texture scanner (192) may acquire an image of the fabric to scan the texture. For example, when the first moving body (130) is positioned at a first height (D1) from the base (111), the first plate (141) is also positioned at the first height (D1) from the base, and the fabric (FB) is positioned on the first moving body and the first plate, the texture scanner (192) may scan the texture of the fabric. The texture scanner (192) may be positioned on the extension (114). The texture scanner (192) may be positioned on the extension (114). The texture scanner (192) may be positioned on the substantial central axis of the extension (114). Although the laser (180) is not shown in the drawing, both the laser (180) and the texture scanner (192) may be positioned on the extension (114). The device (100) may include a light source (L). The light source (L) may be disposed on the base (111). The light source (L) may be disposed on the base (111), and a camera (190) may be disposed on the light source (L). The light source (L) may be configured to irradiate light toward a fabric (e.g., the fabric (FB) of FIGS. 5 to 7). The light source (L) may enhance the ability of the camera (190) to identify the fabric. The light source (L) may include an LED. The light source (L) can be configured to allow the camera (190) to acquire an image of the shadow-free fabric within the case (e.g., case (C) of FIG. 8) while performing the drape test.

[0078] Unlike the case where a light source (L) is placed on the base (111) and a camera (190) is placed on the light source (L), the light source (L) may be placed in a different area from the camera (190) on the base (111). For example, the camera (190) may be placed in an area on the base (111) (e.g., a central area of ​​the base (111)), and the light source (L) may be placed in an area (e.g., a peripheral area of ​​the base (111)) different from the area where the camera (190) is not placed. The light source (L) placed in the peripheral area may at least partially surround the camera (190).

[0079] The light source (L) may be configured to irradiate light toward a fabric (e.g., the fabric (FB) of FIGS. 5 to 7). The light source (L) may enhance the camera's (190) ability to discern the fabric. The light source (L) may include an LED. The light source (L) may be configured to allow the camera (190) to acquire an image of the fabric without shadows within a case (e.g., the case (C) of FIG. 8) during a drape test.

[0080] The device (100) may include at least one second light source (not shown) disposed on the extension (114) or the guide (120). The second light source may enhance the discrimination of the texture of the fabric (e.g., the fabric (FB) of FIGS. 5 to 7) when the texture scanner (192) scans the texture. The second light source may include an LED. The second light source may be configured to acquire an image of the fabric without shadows created by the texture scanner (192) or other components (e.g., the extension (114), etc.) while the texture scanner (192) scans the texture.

[0081] FIG. 5 is a side view of the drape test apparatus before the second mobile body is lifted according to one embodiment. FIG. 6 is a side view of the drape test apparatus after the second mobile body is lifted according to one embodiment. FIG. 7 is a side view of the drape test apparatus after the second mobile body is dropped according to one embodiment. FIG. 8 is a perspective view of the drape test apparatus according to one embodiment.

[0082] Referring to FIGS. 5 to 8, the drape test process can be better understood. Referring to FIG. 5, to perform a drape test, a user can place a fabric (FB) on a first moving body (e.g., the first moving body (130) of FIG. 7) and a second moving body (140). The first moving body can be supported by a protrusion (e.g., the protrusion (145) of FIG. 3) and placed inside a first plate (141). The first moving body can be positioned at a first height (D1) from the base (111), and the first plate (141) can also be positioned at a first height (D1) from the base (111). The user can position the fabric such that the center of the fabric substantially coincides with the center of the first moving body by looking at a location where a laser (180) irradiates laser light or a mark included on the fabric. The second fixed element (152) may be positioned at the bottom of the first moving body. The second fixed element (152) may be positioned substantially on the central axis (e.g., Z-axis) of the first plate (141).

[0083] Referring to FIG. 6, the actuator (160) can move the second plate (144) substantially in a direction opposite to the direction of gravity (e.g., +Z direction) so as to position the first moving body (e.g., the first moving body (130) of FIG. 7), the first plate (141), and the fabric (FB) at a second height (D2) from the base (111). Once positioned at the second height (D2), the first moving body can be fixed to the extension (114). The first moving body can be fixed to the extension (114) by the first fixing element (151) and the second fixing element (152) being coupled magnetically. When the first moving body is substantially positioned at the second height (D2), the second fixing element (152) can be moved toward the first fixing element (151) by the magnetism. When the second fixed element (152) moves toward the first fixed element (151), the first movable body (130) may also move together. When the first plate (141) is positioned at the second height (D2), the actuator (160) may no longer move the second plate (144). When the first movable body and the first plate (141) are positioned at the second height (D2), the coupler (170) may couple the fixed body (110) and the second movable body (140). Even if the actuator (160) no longer moves the second plate (144), the height of the second movable body (140) may remain at the second height (D2) through the coupler (170).

[0084] Referring to FIG. 7, while the first moving body (130) and the fabric (FB) are fixed to the extension (114), the second moving body (140) can move (e.g., drop) substantially in the direction of gravity (e.g., -Z direction) with respect to the first moving body (130). The second moving body (140) can drop from the base (111) until it is positioned at a first height (D1). As the area of ​​the fabric (FB) supported by the second moving body (140) stretches, a plurality of wrinkles can be formed in the area of ​​the fabric (FB) that has flowed down. The camera (190) can acquire an image of the fabric (FB). The second moving body (140) can move to a second height (D2) to which the first moving body (130) and the fabric (FB) are fixed. After this, the first moving body (130) and the second moving body (140) can slowly return to the first height (D1).

[0085] Referring to FIG. 8, the device (100) may include a case (C) configured to block external light. The case (C) may be configured to be detachably attached to the fixture (110). A user may use the case (C) to reduce or eliminate background noise while performing a drape test. The case (C) may have a color (e.g., black) with a lower saturation than that of the fabric (FB). The surface of the case (C) may include a paint with a lower saturation color. This may increase the visibility of the fabric relative to the case (C) by an optical element (e.g., a camera (190)). For example, the case (C) may be anodized. A user may perform a drape test without the case (C). Although FIGS. 5 to 7 illustrate the process of conducting a drape test without a case (C), the user can also conduct the drape test process illustrated in FIGS. 5 to 7 with the case (C) attached to the fixture (110).

[0086] Although the embodiments described above have been described with limited drawings, those skilled in the art will appreciate that various technical modifications and variations can be applied based on the above. For example, appropriate results can still be achieved even if the described techniques are performed in a different order than described, and / or components of the described systems, structures, devices, circuits, etc. are combined or combined in a different manner than described, or are replaced or substituted with other components or equivalents.

[0087] Therefore, other implementations, other embodiments, and equivalents to the claims also fall within the scope of the claims described below.

Claims

1. Fixed body, A first movable body configured to support a central region of the fabric and move in a direction opposite to the direction of gravity and be fixed to the fixed body, and A second movable body supporting a central region of the fabric and a peripheral region different from the central region, moving in a direction opposite to the direction of gravity, and configured to move in the direction of gravity while the first movable body is fixed to the fixed body. A drape test device comprising:

2. In paragraph 1, A drape test device in which the first moving body and the second moving body move substantially simultaneously in a direction opposite to the direction of gravity while the first moving body is not fixed to the fixed body.

3. In paragraph 1, A drape test device wherein the second moving body includes a hole aligned with the first moving body.

4. In paragraph 1, A drape test device wherein the second moving body includes a protrusion configured to support the first moving body.

5. In paragraph 1, A drape test device further comprising a fixing member configured to magnetically fix the first moving body to the fixed body.

6. In paragraph 1, A drape test device further comprising an actuator configured to move the second moving body in a direction opposite to the direction of gravity.

7. In paragraph 1, A drape test device further comprising a coupler configured to couple the second moving body to the fixed body.

8. In paragraph 1, The above fixture is, 1st leg, A second leg opposite to the first leg based on the first moving body, and A drape test device comprising an extension extending between the first leg and the second leg.

9. In paragraph 1, A drape test device further comprising a laser that irradiates a laser beam toward the center of the first moving body.

10. In paragraph 1, A drape test device further comprising a camera configured to acquire an image of the fabric and positioned beneath the first moving body.

11. In paragraph 1, A drape test device further comprising a texture scanner configured to scan a texture of the fabric.

12. In paragraph 1, A drape test apparatus further comprising a light source for at least partially illuminating the fabric.

13. In paragraph 1, A drape test device further comprising a case configured to block external light and to be detachable from the fixture.

Images