Electronic device

Abstract

An electronic device is disclosed. The electronic device of the present disclosure comprises: a display; a ring-shaped first band connected to the display; a second band crossing the first band and having both ends coupled to the first band; and a dial which rotates the second band with respect to the first band, wherein the dial may include: a body coupled to the first band so as to be rotatable about an axis intersecting the first band; and a first coupling member coupled to the body, and the second band may include: a second coupling member coupled to the second band and facing the first coupling member, and one of the first coupling member or the second coupling member may be a magnet, and the other may be a magnet or a magnetic body magnetically coupled to the magnet.

Description

electronic devices

[0001] The present disclosure relates to electronic devices. More specifically, the present disclosure relates to electronic devices used in VR (virtual reality), AR (augmented reality), MR (mixed reality), etc.

[0002] Virtual reality (VR) refers to a specific environment or situation, or the technology itself, created using artificial technology such as computers that is similar to reality but is not actually real.

[0003] Augmented reality (AR) refers to a technology that superimposes virtual objects or information onto a real environment to make them appear as if they exist in the original environment.

[0004] Mixed Reality (MR) or Hybrid Reality refers to combining the virtual and real worlds to create new environments or information. In particular, the term Mixed Reality is used to describe a system that allows for real-time interaction between elements existing in the real and virtual worlds.

[0005] At this time, the created virtual environment or situation stimulates the user's five senses and enables spatial and temporal experiences similar to reality, thereby allowing the user to freely cross the boundary between reality and imagination. Furthermore, the user can not only simply immerse themselves in this environment but also interact with the elements implemented within it, such as by using actual devices to perform operations or issue commands.

[0006] Recently, active research is being conducted on the equipment (gear) used in these technology fields.

[0007] The present disclosure aims to solve the aforementioned problems and other problems.

[0008] Another objective may be to provide an electronic device equipped with a ring-shaped headband and a display.

[0009] Another objective may be to provide an electronic device equipped with a top band that crosses the headband.

[0010] Another purpose may be to provide a structure that uses magnets to attach the top band to the dial attached to the headband.

[0011] Another purpose may be to provide a structure that allows the user to adjust the position or angle of the top band by manipulating the dial and / or top band.

[0012] Another purpose may be to provide various examples of structures that adjust the position or angle of the top band.

[0013] According to one aspect of the present disclosure for achieving the above or other purposes, an electronic device may comprise: a display; a ring-shaped first band connected to the display; a second band crossing the first band, with both ends coupled to the first band; and a dial for rotating the second band relative to the first band, wherein the dial may comprise: a body coupled to the first band rotatably about an axis intersecting the first band; and a first coupling member coupled to the body, and the second band may comprise: a second coupling member coupled to the second band and facing the first coupling member, wherein either the first coupling member or the second coupling member may be a magnet, and the other may be a magnet or a magnetic material magnetically coupled to the magnet.

[0014] The effects of the electronic device according to the present disclosure are described as follows.

[0015] According to at least one of the embodiments of the present disclosure, an electronic device having a ring-shaped headband and a display can be provided.

[0016] According to at least one of the embodiments of the present disclosure, an electronic device having a top band across a headband can be provided.

[0017] According to at least one of the embodiments of the present disclosure, a structure can be provided for connecting a top band to a dial attached to a head band using a magnet.

[0018] According to at least one of the embodiments of the present disclosure, a structure may be provided that allows a user to adjust the position or angle of the top band by operating a dial and / or the top band.

[0019] According to at least one of the embodiments of the present disclosure, various examples of a structure for adjusting the position or angle of a top band can be provided.

[0020] Further scopes of the applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present disclosure, should be understood as being given merely as examples.

[0021] FIGS. 1 to 23 are drawings illustrating examples of electronic devices according to embodiments of the present disclosure.

[0022] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.

[0023] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.

[0024] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

[0025] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0026] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0027] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0028] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0029] The directional indications of Up (U), Down (D), Left (Le), Right (Ri), Front (F), and Rear (R) shown in the drawings are for convenience of explanation only and do not limit the technical concepts disclosed in this specification.

[0030]

[0031] Referring to FIG. 1, a user (P) may wear an electronic device (1) on their head. The display (10) of the electronic device (1) may be positioned on the face of the user (P) and may provide an image (video) to the eyes of the user (P). The direction in which the display (10) displays an image may be referred to as the rear (R), and the direction in which the user (P) looks at the image of the display (10) may be referred to as the front (F, z). In this way, the directions of the electronic device (1)—up (U, y), down (D), left (Le, x), right (Ri), front (F, z), and rear (R)—can be defined based on the user (P) wearing the electronic device (1).

[0032] The display (10) can provide VR (virtual reality), AR (augmented reality), or MR (mixed reality) to the user (P).

[0033] The electronic device (1) can be called a head-mounted display (HMD), a wearable display, a virtual reality (VR) device, an augmented reality (AR) device, a mixed reality (MR) device, or a display device.

[0034]

[0035] Referring to FIGS. 1 and 2, the electronic device (1) may include a display (10), a box (20), and a band (30).

[0036] The display (10) may include a housing (10H) and a display module (10D). The housing (10H) may form the exterior of the display (10). The housing (10H) may have a tub shape overall and may be open toward the face of a user (P) wearing the electronic device (1). The housing (10H) may be referred to as a goggle frame (10H). The display module (10D) may be mounted inside the housing (10H) and may be directed toward the eyes of a user (P) wearing the electronic device (1). The display module (10D) may be any one of various types of display modules, such as an LCD (Liquid Crystal Display Device) module, an OLED (Organic Light Emitting Diode) module, or an LED (Light Emitting Diode) module. For example, the first display module (10Da) may be directed toward the left eye of the user (P), and the second display module (10Db) may be directed toward the right eye of the user (P). As another example, one display module (10D) may be directed toward both eyes of the user (P). The display (10) may be referred to as a display unit (10) or a visor (10).

[0037] The box (20) may be opposite to the display (10) with respect to the head of the user (P) wearing the electronic device (1). The box (20) may be directed toward the back of the head of the user (P). The box (20) may be referred to as a battery assembly (20), a battery pack (20), or a band adjustment unit (20).

[0038] The band (30) may extend along the circumference of the user (P)'s head. A portion of the band (30) may be positioned on the user (P)'s forehead. A portion of the band (30) may be positioned on the side of the user (P)'s head. The band (30) may be referred to as a headband (30). A box (20) may wrap around a portion of the band (30) and may be attached to the band (30). A display (10) may be adjacent to one side of the band (30) and may be attached to the band (30). Accordingly, the band (30) may connect the box (20) and the display (10).

[0039] A hinge (90) can connect the display (10) and the band (30). One side of the hinge (90) can be fixed to the housing (10H) of the display (10), and the other side of the hinge (90) can be fixed to the lower edge of the band (30). The display (10) can rotate around the shaft of the hinge (90) which is parallel to the horizontal direction. Accordingly, the user can tilt the display (10) located on the face upward, or tilt the display (10) that has been tilted upward downward to position it on the face again.

[0040]

[0041] Referring to FIGS. 3 and 4, the electronic device (1) may include a front pad (30F) fixed to the inner surface of the front portion of the band (30). The front pad (30F) may extend along the front portion of the band (30). The front pad (30F) may include a cushion material and may face the forehead of the user (P, see FIG. 1).

[0042] The housing (30H) may be positioned between the front portion of the band (30) and the front pad (30F), and may be coupled to the band (30) and the front pad (30F). The housing (30H) may be curved along the band (30). Electronic components may be mounted inside the housing (30H). For example, a first speaker (30Sa) may be mounted inside the housing (30H) adjacent to one end of the housing (30H) and may output sound. For example, a second speaker (30Sb) may be mounted inside the housing (30H) adjacent to the other end of the housing (30H) and may output sound.

[0043] The band (30) may be flexible. The band (30) may have elasticity. The band (30) may comprise a single material. Alternatively, the band (30) may comprise two or more materials. The band (30) may comprise a plastic material. An extended band (30) may be bent into a loop shape. Parts of the band (30) may overlap, and the band (30) may form a closed loop. The overlapped parts of the band (30) may be referred to as the overlap portion (30P). The band (30) may be referred to as a band assembly (30), a strap (30), or a loop (30, loop).

[0044] The box (20) can wrap around the overlapping portion (30P) of the band (30). Slits (20Ca, 20Cb, slits) can be formed in the cover (20C) of the box (20). The cover (20C) can be referred to as the case (20C). A first slit (20Ca) can be formed on the left side of the cover (20C), and the band (30) can pass through the first slit (20Ca). A second slit (20Cb) can be formed on the right side of the cover (20C), and the band (30) can pass through the second slit (20Cb).

[0045] The rear pad (20F) may face the front pad (30F). The rear pad (20F) may be attached to the front of the overlapping portion (30P) of the band (30). The rear pad (20F) may be curved along the overlapping portion (30P) of the band (30). The rear pad (20F) may include a cushioning material and may face the back of the user's (P, see FIG. 1) head.

[0046] The base (21) can be attached to the front of the overlapping portion (30P) of the band (30). The base (21) can be positioned between the rear pad (20F) and the overlapping portion (30P) of the band (30), and can be attached to the rear pad (20F) and the overlapping portion (30P). The base (21) can be curved along the overlapping portion (30P) of the band (30).

[0047] The cover (20C) may have a tub shape overall and may be open toward the front. The cover (20C) may be located at the rear of the overlapping portion (30P) of the band (30) and may be attached to the base (21) adjacent to the perimeter of the base (21). The base (21) and the cover (20C) may form an internal receiving space of the box (20). The base (21) may be referred to as the front cover (21), and the cover (20C) may be referred to as the rear cover (20C). The base (21) and the cover (20C) may be collectively referred to as the cover (21, 20C) or the case (21, 20C).

[0048]

[0049] Referring to FIG. 4, the band (30) may include a first portion (31) and a second portion (32). The first portion (31) may be adjacent to one end of the band (30), and the second portion (32) may be adjacent to the other end of the band (30). The first portion (31) may form the first end of the band (30), and the second portion (32) may form the other end of the band (30). The first portion (31) and the second portion (32) may overlap each other to form an overlapping portion (30P) of the band (30). For example, the first portion (31) may be located in front of the second portion (32).

[0050] The first hole (31H) may be formed in the first part (31) of the band (30) and may be formed lengthwise along the length of the band (30). The length of the first hole (31H) may be greater than the width of the first hole (31H). The first hole (31H) may be a rectangular hole. The boundary of the first hole (31H) (or the part of the first part (31) forming this boundary) may include two long sides opposite each other and two short sides opposite each other. The first rack (31R) may be formed on the first long side of the boundary of the first hole (31H) and may extend along the first long side. For example, the first long side may be the upper side of the boundary of the first hole (31H).

[0051] The second hole (32H) may be formed in the second part (32) of the band (30) and may be formed lengthwise along the length of the band (30). The length of the second hole (32H) may be greater than the width of the second hole (32H). The second hole (32H) may be a rectangular hole. The boundary of the second hole (32H) (or the part of the second part (32) forming this boundary) may include two long sides (LS1, LS2) opposite each other and two short sides (SS1, SS2) opposite each other. The second rack (32R) may be formed on the second long side (LS2) of the boundary of the second hole (32H) and may extend along the second long side (LS2). For example, the second long side (LS2) may be the lower side of the boundary of the second hole (32H).

[0052] The second hole (32H) of the band (30) may face at least partially the first hole (31H) of the band (30). The second rack (32R) of the second part (32) may be located opposite the first rack (31R) of the first part (31). The first and second racks (31R, 32R) may be referred to as rack gears (31R, 32R).

[0053] The base (21) may be positioned in front of the overlapping portion (30P) of the band (30) and may be curved along the overlapping portion (30P). A groove (21G) may be formed on one side of the base (21) facing the overlapping portion (30P) of the band (30) and may extend along the overlapping portion (30P). The overlapping portion (30P) of the band (30) may be located in the groove (21G). For example, a first portion (31) of the band (30) may be located on the groove (21G), and a second portion (32) of the band (30) may be located on the first portion (31).

[0054] A pinion (250) can be inserted into the holes (31H, 32H) of the overlapping portion (30P) of the band (30). The pinion (250) can be positioned in the first hole (31H) and the second hole (32H), and the axial direction of the pinion (250) can intersect the overlapping portion (30P). The axial direction of the pinion (250) can be parallel to the front-rear direction. The pinion (250) can be engaged with the first rack (31R) of the first part (31) and the second rack (32R) of the second part (32). The pinion (250) can be referred to as a pinion gear (250). Since the pinion (250) is positioned between the first rack (31R) and the second rack (32R), the first part (31) and the second part (32) can move in opposite directions in response to the rotation of the pinion (250).

[0055]

[0056] Referring to FIG. 5, the frame (22) may be located at the rear of the overlapping portion (30P) of the band (30) and may be coupled to the base (21). The frame (22) may be positioned along the base (21) which is curved along the overlapping portion (30P) of the band (30). The frame (22) may have a shape that is bent at least twice. A through hole (220H) may be formed in the central portion (220) of the frame (22), and the fixed portion (250a) of the pinion (250) may pass through the through hole (220H).

[0057] The bracket (23) may be located on the rear of the frame (22) and may be coupled to the frame (22). The bracket (23) may have a shape corresponding to the frame (22). The bracket (23) may have a shape that is bent at least twice. An insertion hole (230H) may be formed in the central part (230) of the bracket (23), and the fixing part (250a) of the pinion (250) may pass through the insertion hole (230H). The left part (231) of the bracket (23) may be bent from the left side of the central part (230) and may be located on the left side of the frame (22). The right part (232) of the bracket (23) may be bent from the right side of the central part (230) and may be located on the right side of the frame (22).

[0058] A battery (24) can be attached to the rear of a bracket (23). A first battery (24a) can be mounted on the left side (231) of the bracket (23), and a second battery (24b) can be mounted on the right side (232) of the bracket (23). A substrate (24P) can be electrically connected to the battery (24) and attached to the rear of the bracket (23). The substrate (24P) can be a Printed Circuit Board (PCB). The substrate (24P) can be positioned between the first battery (24a) and the second battery (24b) and can be mounted on the central part (230) of the bracket (23).

[0059] The cable (24C) may be electrically connected to the substrate (24P) and / or the battery (24). It may be connected to the second part (32) of the band (30) by passing through the bracket (23) and the frame (22). The cable (24C) may be extended and may be flexible. The cable (24C) may be a Flexible Flat Cable (FFC). Alternatively, the cable (24C) may be replaced with an FPCB (24C, Flexible PCB). The battery (24) may provide power to the electronic component(s) within the display (10, see FIG. 1) and / or housing (30H, see FIG. 3) through the cable (24C).

[0060]

[0061] Referring to FIGS. 6 and 7, a hole (20Ch) may be formed in the cover (20C). The dial (25) may cover the hole (20Ch) and may protrude rearward from the cover (20C). The dial (25) may have an overall round tray shape. The dial (25) may be open forward. The dial (25) may rotate around an axis parallel to the front and rear directions. The dial (25) may be referred to as a handle (25) or a button (25). The dial (25) may include a base (25a) and a wall (25b). The base (25a) may have a circular plate shape and may form the rear surface of the dial (25). The wall (25b) may extend along the perimeter of the base (25a) and may form the side surface of the dial (25).

[0062] The first pin (251) may protrude forward from the center of the base (25a). The second pin (252) may protrude forward from the base (25a) adjacent to the edge of the base (25a). The second pins (252, pins) may be spaced apart from each other in the circumferential direction of the base (25a).

[0063] A ratchet mechanism (26) may be adjacent to a hole (20Ch). The ratchet mechanism (26) may include a ratchet (261), a pawl (262), and a wheel plate (263).

[0064] The ratchet (261) may include an annular wall (261a) and gear teeth (261b). The wall (261a) may form the boundary of the hole (20Ch) of the cover (20C). The gear teeth (261b) may be formed on the inner surface of the wall (261a). An inner rib (261c) may protrude from the inner surface of the wall (261a) and may extend in a ring shape.

[0065] The wheel plate (263) may be positioned on the inner rib (261c). The wheel plate (263) may have a circular plate shape. A pin (263P) may protrude from the front of the wheel plate (263). A stopper (263S) may protrude from the front of the wheel plate (263). Each of the pin (263P) and the stopper (263S) may be provided in multiple numbers. Multiple pins (263Pa, 263Pb, 263Pc) and multiple stoppers (263Sa, 263Sb, 263Sc) may be arranged along the edge of the wheel plate (263).

[0066] The pawl (262) may be positioned on the wheel plate (263), and the pawl (262) may be positioned inside the ratchet (261). The pawl (262) may have a shuriken shape overall. The pawl (262) may be referred to as a rotating body (262), a rotating wheel (262), or a locker (262). The pawl (262) may include a body (2620) and arms (2621).

[0067] The body (2620) may form the central part of the pole (262). Arms (2621) may extend from the body (2620). Arms (2621) may extend radially from the body (2620) and may be spaced apart from each other. Arms (2621) may be referred to as spokes (2621). The first arm (2621a), the second arm (2621b), and the third arm (2621c) may be spaced apart from each other along the circumferential direction of the body (2620). The arms (2621a, 2621b, 2621c) may have the same shape. The arms (2621a, 2621b, 2621c) may have a hook shape bent counterclockwise (CCW). The arm (2621) may include a first part (26211), a second part (26212), and a third part (26213).

[0068] The first part (26211) may extend from the lateral side of the body (2620). The second part (26212) may be bent from the end of the first part (26211) in a direction intersecting the first part (26211) and may be spaced apart from the body (2620). The third part (26213) may protrude toward the body (2620) from a portion adjacent to the end of the second part (26212). A slot (2621S) may be formed in the third part (26213) and may be an elongated hole. The slot (2621S) may be extended diagonally. A projection (2621t) may be formed in the second part (26212) and may be opposite to the third part (26213). The projection (2621t) could be these (2621t, teeth).

[0069] The first pin (263Pa) can be inserted into the slot (2621S) of the first arm (2621a). The slot (2621S) may extend diagonally with respect to the circumferential direction of the wheel plate (263). The curved portion of the first arm (2621a) may be adjacent to or engaged with the first stopper (263Sa).

[0070] The second pin (263Pb) can be inserted into the slot (2621S) of the second arm (2621b). The slot (2621S) can extend diagonally with respect to the circumferential direction of the wheel plate (263). The curved portion of the second arm (2621b) can be adjacent to or caught on the second stopper (263Sb).

[0071] The third pin (263Pc) can be inserted into the slot (2621S) of the third arm (2621c). The slot (2621S) can extend diagonally with respect to the circumferential direction of the wheel plate (263). The curved portion of the third arm (2621c) can be adjacent to or caught on the third stopper (263Sc).

[0072] A plurality of holes (263Va, 263Vb, 263Vc) may be formed in the wheel plate (263) and may be arranged along the edge of the wheel plate (263). A plurality of holes (263Va, 263Vb, 263Vc) may be formed in a plurality of protrusions (263Ua, 263Ub, 263Uc) protruding from the wheel plate (263).

[0073] Fastening members (Fb), such as screws, can be fastened to the second pins (252) of the dial (25) by passing through the holes (263Va, 263Vb, 263Vc). Accordingly, the wheel plate (253) can be fixed to the dial (25).

[0074] A central hole (263H) may be formed in the center of the wheel plate (263). A hollow fixed part (2620F) may protrude from the front of the central part of the body (2620) of the pole (262). A hollow space (2620H) of the fixed part (2620F) may be aligned with the central hole (263H). A first pin (251) of the dial (25) may be inserted into the central hole (263H) and the hollow space (2620H) and may be a protrusion of a cylinder. A fastening member (Fa), such as a screw, may be coupled to the end of the first pin (251), and the dial (25) having the first pin (251) may rotate relative to the pole (262).

[0075] The fixed portion (250a) of the pinion (250) can be inserted into the hollow portion (2620H). The fixed portion (250a) of the pinion (250) may be a square or angular protrusion, and the hollow portion (2620H) may be a hole with a shape corresponding to the fixed portion (250a). Accordingly, the pinion (250) can be rotated together with the pole (262).

[0076] The side (i.e., outer surface) of the wheel plate (263) may not come into contact with the gear teeth (261b) of the ratchet (261). The projection (2621t) of the pawl (262) may come into contact with the gear teeth (261b) of the ratchet (261). The projection (2621t) may have the shape of a gear tooth(s) that meshes with or fits the gear teeth (261b). In other words, the projection (2621t) may have the shape of a crest corresponding to the root between the gear teeth (261b).

[0077] The arms (2621a, 2621b, 2621c) of the pole (262) may have elasticity. The pole (262) may contain an elastic material such as plastic. The pole (262) in contact with the gear teeth (261b) may be in a slightly elastically deformed state.

[0078] The user can rotate the dial (25) and the wheel plate (263) in a first rotational direction (RD1). Additionally, because the stopper (263S) is engaged with the arm (2621) or the pin (263P) is engaged with the slot (2621S), the pawl (262) and the pinion (250) fixed to the pawl (262) can also be rotated together with the wheel plate (263) in a first rotational direction (RD1). The first rotational direction (RD1) may correspond to a direction opposite to the direction in which the second part (26212) of the arm (2621) bends from the first part (26211) (i.e., the bending direction) (i.e., the opposite direction of bending). The first rotational direction (RD1) may be clockwise (CW). In response to the rotation of the pawl (262), the projection (2621t) of the pawl (262) can be rotated in a first rotational direction (RD1) while passing sequentially through the gear teeth (261b) of the ratchet (261).

[0079] The user can rotate the dial (25) and the wheel plate (263) in a second rotational direction (RD2). The pin (263P) in the slot (2621S) can be engaged with the other end of the slot (2621S) after moving by a certain angle (theta P). When the pin (263P) is engaged with the other end of the slot (2621S), the pawl (262) and the pinion (250) fixed to the pawl (262) can also be rotated in the second rotational direction (RD2) together with the wheel plate (263). While the pin (263P) moves from the upper end of the diagonal slot (2621) to the other end, the pin (263P) can press the arm (2621) toward the body (2620) (see dotted line in FIG. 6). Accordingly, the projection (2621t) of the pawl (262) can be disengaged from the gear teeth (261b) of the ratchet (261), and the pawl (262) can be rotated in a second rotational direction (RD2) without interference from the ratchet (261).

[0080]

[0081] Referring again to 3 and 4, the user (P) can rotate the dial (25) in a first rotation direction (RD1) or a second rotation direction (RD2). The first rotation direction (RD1) may be clockwise (CW), and the second rotation direction (RD2) may be counterclockwise (CCW).

[0082] For example, the user (P) can rotate the dial (25) clockwise (CW). In response to the rotation of the dial (25), the pinion (250) and the pawl (262) can be rotated clockwise (CW). In response to the rotation of the pinion (250), the first rack (31R) above the pinion (250) can move in a first direction (DR1), and the second rack (32R) below the pinion (250) can move in a second direction (DR2) opposite to the first direction (DR1). That is, the length of the overlapping portion (30P) formed by the first and second parts (31, 32) of the band (30) can be increased.

[0083] Accordingly, when the user (P) rotates the dial (25) clockwise (CW), the diameter (D30) of the band (30) decreases, and the band (30) can be tightened. When the user (P) stops operating the dial (25), the elastic force of the bent band (30) is transmitted to the pole (262), but the elastic force of the band (30) transmitted to the pole (262) may be insufficient to rotate the pole (262) counterclockwise (CCW). That is, the ratchet (261) limits the rotation of the pole (262), thereby maintaining the tightened state of the band (30).

[0084] For example, the user (P) can rotate the dial (25) counterclockwise (CCW). In response to the rotation of the dial (25), the pawl (262), which is released from the ratchet (261) by the pin (263P), can be rotated counterclockwise (CCW) together with the pinion (250). In response to the rotation of the pinion (250), the first rack (31R) above the pinion (250) can move in a second direction (DR2), and the second rack (32R) below the pinion (250) can move in a first direction (DR1) opposite to the second direction (DR2). That is, the length of the overlapping portion (30P) formed by the first and second parts (31, 32) of the band (30) can be reduced.

[0085] Accordingly, when the user (P) rotates the dial (25) counterclockwise (CCW), the diameter (D30) of the band (30) increases, and the band (30) can be unfastened. The user (P) can stop the unfastening of the band (30) by rotating the dial (25) clockwise (CW) by a certain angle (theta P). In this case, the pin (263P) can move in the first rotational direction (RD1) in the slot (2621S) (see FIG. 6 and 7), the pressure on the arm (2621) by the pin (263P) can be released, and the arm (2621) can be restored so that the projection (2621t) of the arm (2621) can be caught on the gear teeth (261b) (see FIG. 6). The elastic force of the bent band (30) in this state may be insufficient to rotate the pawl (262) engaged with the gear teeth (261b) of the ratchet (261) in a counterclockwise (CCW) direction. That is, by limiting the rotation of the pawl (262) by the ratchet (261), the unwinding of the band (30) may be stopped.

[0086]

[0087] Referring to FIGS. 8 and 9, the top band (40) may be extended, and both ends of the top band (40) may be joined to the band (30). The top band (40) may cross the band (30). The top band (40) may cross the band (30). The top band (40) may be curved. The top band (40) may be convex upward. The top band (40) may extend from the top of the head of the user (P) toward both ears. The center of curvature of the top band (40) may be adjacent to the center of curvature of the band (30). The top band (40) may have an open ring shape. The top band (40) may form an open loop. The band (30) may be called the head band (30) or the first band (30), and the top band (40) may be called the strap (40) or the second band (40).

[0088] The first inner part (40a) may be a part of the top band (40) forming one end of the top band (40). The first inner part (40a) may face the inner surface of the band (30). The first inner part (40a) may be adjacent to one end of the housing (30H).

[0089] The second inner part (40b) may be a part of the top band (40) forming the other end of the top band (40). The second inner part (40b) may face the inner surface of the band (30). The second inner part (40b) may be adjacent to the other end of the housing (30H).

[0090]

[0091] Referring to FIG. 10, the top band (40) may be flexible. The top band (40) may have elasticity. The top band (40) may include a plastic material. The top band (40) may include a first part (41) and a second part (42). One end of the first part (41) may form one end of the top band (40), and the first inner part (40a, see FIG. 9) may be part of the first part (41). The other end of the first part (41) may be a free end. One end of the second part (42) may form the other end of the top band (40), and the second inner part (40b, see FIG. 9) may be part of the second part (42). The other end of the second part (42) may be a free end. A portion of the first part (41) and a portion of the second part (42) may overlap each other to form an overlapping portion (40P) of the top band (40).

[0092] The first hole (41H) may be formed in the first part (41) and may be formed lengthwise along the length of the top band (40). The length of the first hole (41H) may be greater than the width of the first hole (41H). The first hole (41H) may be a rectangular hole. The boundary of the first hole (41H) (or the part of the first part (41) forming this boundary) may include two long sides opposite each other and two short sides opposite each other. The first rack (41R) may be formed on the first long side of the boundary of the first hole (41H) and may extend along the first long side. For example, the first long side may be the front side of the boundary of the first hole (41H).

[0093] The second hole (42H) may be formed in the second part (42) and may be formed lengthwise along the length of the top band (40). The length of the second hole (42H) may be greater than the width of the second hole (42H). The second hole (42H) may be a rectangular hole. The boundary of the second hole (42H) (or the part of the second part (42) forming this boundary) may include two long sides opposite each other and two short sides opposite each other. The second rack (42R) may be formed on the second long side of the boundary of the second hole (42H) and may extend along the second long side. For example, the second long side may be the rear side of the boundary of the second hole (42H).

[0094] The first and second holes (41H, 42H) of the top band (40) may face each other at least partially. The second rack (42R) may be located opposite the first rack (41R). The first and second racks (41R, 42R) may be referred to as rack gears (41R, 42R).

[0095] The pinion (450) can be inserted into the first and second holes (41H, 42H) of the overlapping portion (40P) of the top band (40), and the axial direction of the pinion (450) can intersect the overlapping portion (40P). The pinion (450) can be engaged with the first rack (41R) and the second rack (42R). The pinion (450) can be referred to as a pinion gear (450). Since the pinion (450) is positioned between the first rack (41R) and the second rack (42R), the first part (41) and the second part (42) can move in opposite directions in response to the rotation of the pinion (450).

[0096] A box (50, see FIG. 8) can wrap around the overlapping portion (40P) of the top band (40). A first slit (50a) can be formed on the left side of the box (50), and a first part (41) of the top band (40) can pass through the first slit (50a). A second slit (50b) can be formed on the right side of the box (50), and a second part (42) of the top band (40) can pass through the second slit (50b).

[0097] The dial (55, see FIG. 8) can be rotatably coupled to the box (50) and fixed to the pinion (450) inside the box (50). Accordingly, the user (P) can rotate the pinion (450) by operating the dial (55). The user (P) can rotate the dial (55) and the pinion (450) in a first rotational direction (R1) or a second rotational direction (R2).

[0098] For example, the user (P) can rotate the dial (55) and the pinion (450) in a first rotational direction (R1). In response to the rotation of the pinion (450), the first rack (41R) can move in a first direction (D1), and the second rack (42R) can move in a second direction (D2) opposite to the first direction (D1). That is, the length of the overlapping portion (40P) formed by the first and second parts (41, 42) of the top band (40) can be increased. In other words, the top band (40) can be tightened.

[0099] For example, the user (P) can rotate the dial (55) and the pinion (450) in a second rotational direction (R2). In response to the rotation of the pinion (450), the first rack (41R) can move in a second direction (D2), and the second rack (42R) can move in a first direction (D1) opposite to the second direction (D2). That is, the length of the overlapping portion (40P) formed by the first and second parts (41, 42) of the top band (40) can be shortened. In other words, the top band (40) can be unraveled.

[0100] Meanwhile, with reference to FIGS. 6 and 7, the ratchet mechanism described above or a locking mechanism that generally prevents or allows the loosening of a gear can be applied to the rotational structure of the dial (55) and pinion (450).

[0101]

[0102] Referring again to FIG. 8, the band (30) may include a first outer part (30a) and a second outer part (30b). The inner surface of the first outer part (30a) may face the outer surface of the first inner part (40a) of the top band (40). The inner surface of the second outer part (30b) may face the outer surface of the second inner part (40b) of the top band (40).

[0103] Each of the first and second inner parts (40a, 40b) can be rotatably coupled to each of the first and second outer parts (30a, 30b). The coupling structure of the second inner part (40b) and the second outer part (30b) described above and below can be applied in the same way to the coupling structure of the first inner part (40a) and the first outer part (30a). For example, the coupling structure of the second inner part (40b) and the second outer part (30b) can be symmetrical to the coupling structure of the first inner part (40a) and the first outer part (30a).

[0104]

[0105] Referring to FIGS. 11 and 12, the dial (60) may be coupled to the second outer part (30b). The dial (60) may be coupled to the first outer part (30a, see FIG. 8). The dial (60) coupled to the first outer part (30a) may be referred to as the first dial (60), and the dial (60) coupled to the second outer part (30b) may be referred to as the second dial (60). The first inner part (40a, see FIG. 8) may be coupled to the first dial (60) and may rotate with respect to the band (30). The second inner part (40b, see FIG. 8) may be coupled to the second dial (60) and may rotate with respect to the band (30). Either the first dial (60) or the second dial (60) may be omitted. If the first dial (60) is omitted, the first inner part (40a, see FIG. 8) can be rotatably coupled to the first outer part (30a). If the second dial (60) is omitted, the second inner part (40b, see FIG. 8) can be rotatably coupled to the second outer part (30b). The dial (60) may be referred to as a handle (60). The dial (60) may include a body (61) and a first coupling member (60M).

[0106] The body (61) may have a flat cylinder or coin shape. A hole (30L) may be formed in the second outer part (30b), and the body (61) may be inserted into the hole (30L). The body (61) inserted into the hole (30L) may rotate, and the axis of rotation of the body (61) may intersect the second outer part (30b). A protrusion (62) may be formed on the outer surface of the body (61). The protrusion (62) may protrude further outward than the outer surface of the second outer part (30b). For example, the protrusion (62) may extend in the radial direction of the body (61). The protrusion (62) may be referred to as a handle (62).

[0107] The first connecting member (60M) can be connected to the inner surface of the body (61). A groove (61g) can be formed on the inner surface of the body (61) and may have a shape corresponding to the first connecting member (60M). The first connecting member (60M) can be connected to or attached to the groove (61g). The first connecting member (60M) can be aligned parallel to the inner surface of the body (61) and the inner surface of the second outer part (30b).

[0108] For example, the first connecting member (60M) may have an open ring shape. The first connecting member (60M) may have a semicircular arch shape.

[0109] As another example, the first connecting member (60M) may have a circular sector shape. The first connecting member (60M) may be a semicircle. The sector is an area enclosed by two radii and one arc in a circle, and a sector in which the angle between the two radii is 180 degrees may be called a semicircle.

[0110] As another example, the first connecting member (60M) may have a ring or circular shape.

[0111] A recessed portion (61r) may be formed on the inner surface of the body (61). The recessed portion (61r) may be recessed from the inner surface of the central portion of the body (61). The recessed portion (61r) may be a circular groove. Alternatively, a protrusion may be formed on the inner surface of the body (61) in place of the recessed portion (61r). The protrusion may protrude from the inner surface of the central portion of the body (61). The protrusion may have a cylindrical shape. A first connecting member (60M) may be positioned along the edge of the recessed portion (61r) or the edge of the protrusion.

[0112]

[0113] Referring to FIGS. 13 and 14, the outer surface of the second inner part (40b) may face the second outer part (30b) where the dial (60) is located. The outer surface of the second inner part (40b) may contact the inner surface of the second outer part (30b). The top band (40) may be caught on the inner circumference of the band (30).

[0114] The second connecting member (40M) can be connected to the outer surface of the second inner part (40b). The groove (40g) can be formed on the outer surface of the second inner part (40b) and may have a shape corresponding to the second connecting member (40M). The second connecting member (40M) may be connected to or attached to the groove (40g). The second connecting member (40M) may be parallel to the outer surface of the second inner part (40b). The second connecting member (40M) may have the same shape as the first connecting member (60M).

[0115] For example, the second connecting member (40M) may have an open ring shape. The second connecting member (40M) may have a semicircular arch shape.

[0116] As another example, the second connecting member (40M) may have a circular sector shape. The second connecting member (40M) may be a semicircle. The sector is an area enclosed by two radii and one arc in a circle, and a sector in which the angle between the two radii is 180 degrees may be called a semicircle.

[0117] As another example, the second connecting member (40M) may have a ring or circular shape.

[0118] A protrusion (40t) may be formed on the outer surface of the second inner part (40b). The protrusion (40t) may protrude from the outer surface of the central portion of the second inner part (40b). The protrusion (40t) may have a cylindrical shape. Alternatively, a depression may be formed on the outer surface of the second inner part (40b) instead of the protrusion (40t). The depression may be recessed from the outer surface of the central portion of the second inner part (40b). The depression may be a circular groove. A second connecting member (40M) may be positioned along the edge of the protrusion (40t) or the edge of the depression.

[0119] The protrusion (40t) of the second inner part (40b) can be inserted into the recess (61r) of the dial (60). Alternatively, the protrusion of the dial (60) can be inserted into the recess of the second inner part (40b). Accordingly, the protrusion (40t) and the recess (61r) can guide the connection of the top band (40) and the dial (60).

[0120] The first coupling member (60M) of the dial (60) may face the second coupling member (40M) of the second inner part (40b) and may be magnetically coupled to the second coupling member (40M). The first coupling member (60M) may be in contact with or separated from the second coupling member (40M).

[0121] For example, both the first coupling member (60M) and the second coupling member (40M) may be magnets, and a magnetic attraction may act between the first and second coupling members (60M, 40M). The first coupling member (60M) may be referred to as the first magnet (60M), and the second coupling member (40M) may be referred to as the second magnet (40M).

[0122] As another example, the first connecting member (60M) may be a magnet, and the second connecting member (40M) may be a magnetic substance such as iron (Fe). A magnetic attraction may act between the first and second connecting members (60M, 40M). The first connecting member (60M) may be referred to as a magnet (60M), and the second connecting member (40M) may be referred to as a magnetic substance (40M).

[0123] As another example, the second coupling member (40M) may be a magnet, and the first coupling member (60M) may be a magnetic substance such as iron (Fe). A magnetic attraction may act between the first and second coupling members (60M, 40M). The first coupling member (60M) may be referred to as a magnetic substance (60M), and the second coupling member (40M) may be referred to as a magnet (40M).

[0124] That is, either the first coupling member (60M) or the second coupling member (40M) may be a magnet, and the other may be a magnet or a magnetic material that is magnetically coupled to the magnet.

[0125] Accordingly, the top band (40) can be fixed to the dial (60) through the combination of the first and second connecting members (60M, 40M). That is, the dial (60) and the top band (40) can be rotated together around the rotation axis (A, axis) of the dial (60). The user (P) can rotate the dial (60) in a first rotation direction (RDa) or a second rotation direction (RDb).

[0126] At this time, if the first and second connecting members (60M, 40M) have an open ring or fan shape, the second connecting member (40M) can be aligned with the first connecting member (60M) by magnetic attraction between the first and second connecting members (60M, 40M). In other words, the position or angle of the top band (40) equipped with the second connecting member (40M) can be guided by the first connecting member (60M) of the dial (60) or fixed to the first connecting member (60M) so that the second connecting member (40M) is placed in a position overlapping with the first connecting member (60M).

[0127] Alternatively, the first and second connecting members (60M, 40M) may have a ring or circular shape. In this case, the user may arbitrarily determine the position of the top band (40) having the second connecting member (40M) relative to the dial (60) having the first connecting member (60M).

[0128] The end of the second inner part (40b) may be formed round (see FIG. 9). The second inner part (40b) may be spaced rearward by a certain distance (d4) from one end of the housing (30H). For example, the distance (d4) may be about 3 mm. The rotation of the top band (40) may be limited if the end of the second inner part (40b) interferes with the one end of the housing (30H). For example, the top band (40) may rotate within a 90-degree range. For example, if the angle between the top band (40) and the band (30) is 0 degrees or 90 degrees, the end of the second inner part (40b) may come into contact with the one end of the housing (30H).

[0129]

[0130] Referring to FIGS. 15 and 16, the dial (60') may be coupled to the second outer part (30b). The dial (60') may be coupled to the first outer part (30a, see FIG. 8). The dial (60') coupled to the first outer part (30a) may be referred to as the first dial (60'), and the dial (60') coupled to the second outer part (30b) may be referred to as the second dial (60'). The first inner part (40a, see FIG. 8) may be coupled to the first dial (60') and may rotate with respect to the band (30). The second inner part (40b', see FIG. 8) may be coupled to the second dial (60') and may rotate with respect to the band (30). Either the first dial (60') or the second dial (60') may be omitted. If the first dial (60') is omitted, the first inner part (40a, see FIG. 8) can be rotatably coupled to the first outer part (30a). If the second dial (60') is omitted, the second inner part (40b, see FIG. 8) can be rotatably coupled to the second outer part (30b). The dial (60') may be referred to as a handle (60'). The dial (60') may include a body (61') and a first coupling member (60M').

[0131] The body (61') may have a flat cylinder or coin shape. A hole (30L) may be formed in the second outer part (30b), and the body (61') may be inserted into the hole (30L). The body (61') inserted into the hole (30L) may rotate, and the axis of rotation (A') of the body (61') may intersect the second outer part (30b). A protrusion (62') may be formed on the outer surface of the body (61'). The protrusion (62') may protrude further outward than the outer surface of the second outer part (30b). For example, the protrusion (62') may extend in the radial direction of the body (61'). The protrusion (62') may be referred to as a handle (62').

[0132] The first connecting member (60M') may be connected to the inner surface of the body (61'). A groove (61g') may be formed on the inner surface of the body (61'), a gap filler (61p') may be located on the groove (61g'), and the first connecting member (61M') may be connected or attached to the gap filler (61p'). Alternatively, the groove (61g') and / or the gap filler (61p') may be omitted, and the first connecting member (61M') may be connected or attached to the inner surface of the body (61').

[0133] For example, the first connecting member (60M') may have a circular sector shape. The first connecting member (60M') may be a semicircle. The sector is an area enclosed by two radii and one arc in a circle, and a sector in which the angle between the two radii is 180 degrees may be called a semicircle.

[0134] As another example, the first connecting member (60M') may have an open ring shape. The first connecting member (60M') may have a semicircular arch shape.

[0135] As another example, the first connecting member (60M') may have a ring or circular shape.

[0136] The insert (30N') may protrude from the inner surface of the second outer part (30b) and may face the dial (60'). The insert (30N') may open toward the dial (60') and may wrap around the first coupling member (60M'). The insert (30N') may include a side wall (30Na') and a top (30Nb'). The side wall (30Na') may protrude from the inner surface of the second outer part (30b) and may extend along the perimeter of the first coupling member (60M') or the boundary of the hole (30L). The side wall (30Na') may be an annular wall. The top (30Nb') may intersect the side wall (30Na'). The top (30Nb') may be bent from the end of the side wall (30Na') and may face the first connecting member (60M'). The first connecting member (60M') may be located in the internal space (30Ns') of the insertion part (30N') and may be in contact with or spaced apart from the top (30Nb'). A hole (30Nh') may be formed in the top (30Nb'). The hole (30Nh') may be omitted.

[0137] Grooves (30Nc') can be formed on the side of the insert (30N'), i.e., the side wall (30Na'). Grooves (30Nc') can be arranged along the side wall (30Na'). In the circumferential direction of the insert (30N'), the grooves (30Nc') can form waves. Ridges (30Nd') can be formed between the grooves (30Nc'). The ridges (30Nd') and the grooves (30Nc') can be formed rounded. For example, the angle between the grooves (30Nc') with respect to the center of the insert (30N') can be 30 degrees.

[0138]

[0139] Referring to FIGS. 17 and 18, the outer surface of the second inner part (40b) may face the second outer part (30b) where the dial (60') is located. The outer surface of the second inner part (40b) may contact the inner surface of the second outer part (30b). The top band (40) may be caught on the inner circumference of the band (30).

[0140] A hole (40H') may be formed in the second inner part (40b). A rib (40R') may protrude from a portion of the second inner part (40b) that forms the boundary of the hole (40H'). The rib (40R') may have a circular plate or ring shape. The rib (40R') may have a hole (40Rh') aligned with the hole (30Nh'). The hole (30Nh') and / or the hole (40Rh') may be omitted. The rib (40R') may divide the hole (40H') into a first hole (40Ha') facing the dial (60') and a second hole (40Hb') opposite the first hole (40Ha'). The diameter (Da') of the first hole (40Ha') may be larger than the diameter (Db') of the second hole (40b').

[0141] The projection (40U') may protrude from a portion of the second inner part (40b) that forms the boundary of the first hole (40Ha'). The projection (40U') may have a shape corresponding to the groove (30Nc') of the insertion portion (30N'). For example, a plurality of projections (40U') may be spaced apart from each other along the boundary of the first hole (40Ha'). For example, the first projection (40Ua') and the second projection (40Ub') may be opposite each other with respect to the center of the first hole (40Ha').

[0142] The second connecting member (40M') can be inserted into the second hole (40Hb'). The second connecting member (40M') can be connected to or attached to the rib (40R'). The second connecting member (40M') can be parallel to the rib (40R'). The second connecting member (40M') can have the same shape as the first connecting member (60M').

[0143] For example, the second connecting member (40M') may have a circular sector shape. The second connecting member (40M') may be a semicircle. The sector is an area enclosed by two radii and one arc in a circle, and a sector in which the angle between the two radii is 180 degrees may be called a semicircle.

[0144] As another example, the second connecting member (40M') may have an open ring shape. The second connecting member (40M') may have a semicircular arch shape.

[0145] As another example, the second connecting member (40M') may have a ring or circular shape.

[0146] The insertion portion (30N') of the second outer part (30b) can be inserted into the first hole (40Ha') of the second inner part (40b). The top (30Nb') of the insertion portion (30N') can come into contact with the rib (40R') of the second inner part (40b). Accordingly, the first hole (40Ha') and the insertion portion (30N') can guide the connection of the top band (40) and the band (30).

[0147] The first coupling member (60M') of the dial (60') may face the second coupling member (40M') of the second inner part (40b) and may be magnetically coupled to the second coupling member (40M'). The distance (Dm') between the first coupling member (60M') and the second coupling member (40M') may be equal to the sum of the thickness of the top (30Nb') of the insertion part (30N') and the thickness of the rib (40R') of the second inner part (40b). For example, the distance (Dm') may be about 1 mm.

[0148] For example, both the first coupling member (60M') and the second coupling member (40M') may be magnets, and a magnetic attraction may act between the first and second coupling members (60M', 40M'). The first coupling member (60M') may be referred to as the first magnet (60M'), and the second coupling member (40M') may be referred to as the second magnet (40M').

[0149] As another example, the first coupling member (60M') may be a magnet, and the second coupling member (40M') may be a magnetic substance such as iron (Fe). A magnetic attraction may act between the first and second coupling members (60M', 40M'). The first coupling member (60M') may be referred to as a magnet (60M'), and the second coupling member (40M') may be referred to as a magnetic substance (40M').

[0150] As another example, the second coupling member (40M') may be a magnet, and the first coupling member (60M') may be a magnetic substance such as iron (Fe). A magnetic attraction may act between the first and second coupling members (60M', 40M'). The first coupling member (60M') may be referred to as a magnetic substance (60M'), and the second coupling member (40M') may be referred to as a magnet (40M').

[0151] That is, either the first coupling member (60M') or the second coupling member (40M') may be a magnet, and the other may be a magnet or a magnetic material that is magnetically coupled to the magnet.

[0152] Accordingly, the top band (40) can be fixed to the dial (60') through the combination of the first and second connecting members (60M', 40M'). That is, the dial (60') and the top band (40) can be rotated together around the rotation axis (A', axis) of the dial (60'). The dial (60') and the top band (40) can be rotated about the insertion part (30N'). The user (P) can rotate the dial (60') in a first rotation direction (RDa) or a second rotation direction (RDb).

[0153] At this time, if the first and second connecting members (60M', 40M') have an open ring or fan shape, the second connecting member (40M') can be aligned with the first connecting member (60M') by magnetic attraction between the first and second connecting members (60M', 40M'). In other words, the position or angle of the top band (40) equipped with the second connecting member (40M') can be guided by the first connecting member (60M') of the dial (60') or fixed to the first connecting member (60M') so that the second connecting member (40M') is placed in a position overlapping with the first connecting member (60M').

[0154] Alternatively, the first and second connecting members (60M', 40M') may have a ring or circular shape. In this case, the user may arbitrarily determine the position of the top band (40) having the second connecting member (40M') relative to the dial (60') having the first connecting member (60M').

[0155] The end of the second inner part (40b) may be formed in a rounded shape. The second inner part (40b) may be spaced rearward by a certain distance (d4) from one end of the housing (30H). For example, the distance (d4) may be about 3 mm. The rotation of the top band (40) may be limited if the end of the second inner part (40b) interferes with the one end of the housing (30H). For example, the top band (40) may rotate within a 90-degree range. For example, if the angle between the top band (40) and the band (30) is 0 degrees or 90 degrees, the end of the second inner part (40b) may come into contact with the one end of the housing (30H).

[0156] The projection (40U') of the second inner part (40b) may be adjacent to the groove (30Nc') of the insertion part (30N'). The projection (U') may be located on the groove (30Nc'). In the radial direction of the side wall (30Na'), the gap between the boundary of the first hole (40Ha') where the projection (40U') is formed and the crest (30Nd') may be smaller than the height of the projection (40U'). When the projection (40U') moves from the groove (30Nc') to the crest (30Nd'), the projection (40U') and / or the side wall (30Na') may be elastically deformed. In response to the rotation of the second inner part (40b) relative to the insertion part (30N'), the projection (40U') can alternately move between the grooves (30Nc') and the crests (30Nd'). At this time, a force greater than a certain amount may be required for the projection (40U') to move from the groove (30Nc') to the crest (30Nd').

[0157] Accordingly, the user (P) can sequentially rotate the dial (60') and the top band (40) by an angle (theta t, see FIG. 15) between the grooves (30Nc'). For example, the angle (theta t) may be 30 degrees. If no force greater than a certain magnitude is applied to the projection (40U'), the projection (40U') may remain on the groove (30Nc'), and as a result, the angle of the top band (40) may be maintained. That is, the projection (40U') can provide a free-stop structure.

[0158]

[0159] Referring to FIGS. 19 and 20, the dial (60'') can be coupled to the second outer part (30b). The dial (60'') can be coupled to the first outer part (30a, see FIG. 8). The dial (60'') coupled to the first outer part (30a) can be referred to as the first dial (60''), and the dial (60'') coupled to the second outer part (30b) can be referred to as the second dial (60''). The first inner part (40a, see FIG. 8) can be coupled to the first dial (60'') and can rotate with respect to the band (30). The second inner part (40b, see FIG. 8) can be coupled to the second dial (60'') and can rotate with respect to the band (30). Either the first dial (60'') or the second dial (60'') may be omitted. If the first dial (60'') is omitted, the first inner part (40a, see FIG. 8) may be rotatably coupled to the first outer part (30a). If the second dial (60'') is omitted, the second inner part (40b, see FIG. 8) may be rotatably coupled to the second outer part (30b). The dial (60'') may be referred to as a handle (60''). The dial (60'') may include a body (61'') and a first coupling member (60M'').

[0160] The body (61'') may have a flat cylinder or coin shape. A hole (30L) may be formed in the second outer part (30b), and the body (61'') may pass through the hole (30L). The body (61'') inserted into the hole (30L) may rotate, and the axis of rotation (A'', axis) of the body (61'') may intersect the second outer part (30b). The first part (611'') of the body (61'') may form the outer end of the body (61''). The second part (612'') of the body (61'') may form the inner end of the body (61''). The third part (613'') of the body (61'') may be located between the first part (611'') and the second part (612'') and may form the side of the body (61''). A portion of the third part (613'') and the second part (612'') may protrude from the inner surface of the second outer part (30b) and may be collectively referred to as an insertion part (61N''). A dial (60'') having an insertion part (61N'') may rotate relative to the second outer part (30b). A hole (612h'') may be formed in the second part (612''). The hole (612h'') may be omitted.

[0161] A protrusion (62'') may be formed on the outer surface of the body (61''). The protrusion (62'') may protrude further outward than the outer surface of the second outer part (30b). For example, the protrusion (62'') may extend in the radial direction of the body (61''). The protrusion (62'') may be referred to as a handle (62'').

[0162] The first connecting member (60M'') may be connected to the inner surface of the body (61''). The first connecting member (60M'') may be located in the internal space (61S'') of the body (61''). The first connecting member (60M'') may be connected to or attached to the third part (613'') of the body (61''). A gap filler (61p'') may be located in the gap between the first connecting member (60M'') and the first part (611''). The gap filler (61p'') may be omitted.

[0163] For example, the first connecting member (60M'') may have a circular sector shape. The first connecting member (60M'') may be a semicircle. The sector is an area enclosed by two radii and one arc in a circle, and a sector in which the angle between the two radii is 180 degrees may be called a semicircle.

[0164] As another example, the first connecting member (60M'') may have an open ring shape. The first connecting member (60M'') may have a semicircular arch shape.

[0165] As another example, the first connecting member (60M'') may have a ring or circular shape.

[0166] The insertion portion (61N'') of the dial (60''), that is, part of the third part (613'') and the second part (612''), can be inserted into the first hole (40Ha') of the second inner part (40b). The second part (612'') can come into contact with the rib (40R') of the second inner part (40b). Accordingly, the first hole (40Ha') and the dial (60'') can guide the connection between the top band (40) and the dial (60'').

[0167] The first coupling member (60M'') of the dial (60'') may face the second coupling member (40M') of the second inner part (40b) and may be magnetically coupled to the second coupling member (40M'). The distance (Dm'') between the first coupling member (60M'') and the second coupling member (40M') may be equal to the sum of the thickness of the second part (612') of the dial (60'') and the thickness of the rib (40R') of the second inner part (40b). For example, the distance (Dm'') may be about 1 mm.

[0168] For example, both the first coupling member (60M'') and the second coupling member (40M') may be magnets, and a magnetic attraction may act between the first and second coupling members (60M'', 40M'). The first coupling member (60M'') may be referred to as the first magnet (60M''), and the second coupling member (40M') may be referred to as the second magnet (40M').

[0169] As another example, the first coupling member (60M'') may be a magnet, and the second coupling member (40M') may be a magnetic substance such as iron (Fe). A magnetic attraction may act between the first and second coupling members (60M'', 40M'). The first coupling member (60M'') may be referred to as a magnet (60M''), and the second coupling member (40M') may be referred to as a magnetic substance (40M').

[0170] As another example, the second coupling member (40M') may be a magnet, and the first coupling member (60M'') may be a magnetic substance such as iron (Fe). A magnetic attraction may act between the first and second coupling members (60M'', 40M'). The first coupling member (60M'') may be referred to as a magnetic substance (60M''), and the second coupling member (40M') may be referred to as a magnet (40M').

[0171] That is, either the first coupling member (60M'') or the second coupling member (40M') may be a magnet, and the other may be a magnet or a magnetic material that is magnetically coupled to the magnet.

[0172] Accordingly, the top band (40) can be fixed to the dial (60'') through the combination of the first and second connecting members (60M'', 40M'). That is, the dial (60'') and the top band (40) can be rotated together around the rotation axis (A'', axis) of the dial (60''). The user (P) can rotate the dial (60'') in a first rotation direction (RDa) or a second rotation direction (RDb).

[0173] At this time, if the first and second connecting members (60M'', 40M') have an open ring or fan shape, the second connecting member (40M') can be aligned with the first connecting member (60M'') by magnetic attraction between the first and second connecting members (60M'', 40M'). In other words, the position or angle of the top band (40) equipped with the second connecting member (40M') can be guided by the first connecting member (60M'') of the dial (60'') or fixed to the first connecting member (60M'') so that the second connecting member (40M') is placed in a position overlapping with the first connecting member (60M'').

[0174] Alternatively, the first and second connecting members (60M'', 40M') may have a ring or circular shape. In this case, the user may arbitrarily determine the position of the top band (40) having the second connecting member (40M') relative to the dial (60'') having the first connecting member (60M'').

[0175] The end of the second inner part (40b) may be formed in a rounded shape. The second inner part (40b) may be spaced rearward by a certain distance (d4) from one end of the housing (30H). For example, the distance (d4) may be about 3 mm. The rotation of the top band (40) may be limited if the end of the second inner part (40b) interferes with the one end of the housing (30H). For example, the top band (40) may rotate within a 90-degree range. For example, if the angle between the top band (40) and the band (30) is 0 degrees or 90 degrees, the end of the second inner part (40b) may come into contact with the one end of the housing (30H).

[0176] Grooves (613a'') can be formed on the side of the body (61'') located in the first hole (40Ha'), i.e., on the third part (613''). Grooves (613a'') can be arranged along the third part (613''). In the circumferential direction of the body (61''), the grooves (613a'') can form waves. Ridges (613b'') can be formed between the grooves (613a''). Ridges (613b'') can be formed between the grooves (613a''). The ridges (613b'') and the grooves (613a'') can be formed in a rounded shape. For example, the angle (theta t) between the grooves (613a'') with respect to the center of the body (61'') can be 30 degrees.

[0177] The projection (40U') of the second inner part (40b) may be adjacent to the groove (613a'') of the dial (60''). The projection (40U') may be located on the groove (613a''). Radially in the body (61''), the gap between the boundary of the first hole (40Ha') where the projection (40U') is formed and the crest (613b'') may be smaller than the height of the projection (40U'). When the projection (40U') moves from the groove (613a'') to the crest (613b''), the projection (40U') and / or the third part (613'') of the body (61'') may be elastically deformed. In response to the rotation of the second inner part (40b) with respect to the dial (60''), the projection (40U') can alternately move between the grooves (613a'') and the crests (613b''). At this time, a force greater than a certain amount may be required for the projection (40U') to move from the groove (613a'') to the crest (613b'').

[0178] Accordingly, the user (P) can hold the dial (60') with their hand to stop the rotation and sequentially rotate the top band (40) by an angle (theta t, see FIG. 19) between the grooves (613a''). For example, the angle (theta t) may be 30 degrees. If no force greater than a certain amount is applied to the projection (40U'), the projection (40U') may remain on the groove (613a''), and as a result, the angle of the top band (40) may be maintained. That is, the projection (40U') may provide a free-stop structure.

[0179]

[0180] Referring to FIGS. 21 to 23, the user (P) can rotate the top band (40) by operating the dial (60; 60'; 60'') and / or the top band (40).

[0181] Referring to FIG. 21, the angle (theta 1) between the band (30) and the top band (40) may be 90 degrees. Referring to FIG. 22, the angle (theta 2) between the band (30) and the top band (40) may be 60 degrees. Referring to FIG. 23, the angle (theta 3) between the band (30) and the top band (40) may be 0 degrees.

[0182] For example, to reduce the angle between the band (30) and the top band (40), the user (P) can rotate the dial (60; 60'; 60'') in a first rotational direction (RDa). The first rotational direction (RDa) may be clockwise. As the angle between the band (30) and the top band (40) decreases, the top band (40) may be moved toward the back of the user's (P) head.

[0183] For example, to increase the angle between the band (30) and the top band (40), the user (P) can rotate the dial (60; 60'; 60'') in a second rotation direction (RDb). The second rotation direction (RDb) may be counterclockwise. As the angle between the band (30) and the top band (40) increases, the top band (40) may be moved toward the top of the user's (P) head.

[0184] Accordingly, the user (P) can adjust the position and angle of the top band (40) by operating the dial (60; 60'; 60'') and / or the top band (40).

[0185] Meanwhile, the user (P) can rotate the top band (40) so that the angle between the band (30) and the top band (40) is 0 degrees. At this time, to prevent the box (50) of the top band (40) from interfering with the box (20) of the band (30), the user (P) can operate the dial (25) to increase the diameter (D30) of the band (30). In this case, the electronic device (1) can have a minimum height (H3), and the user (P) can easily store or carry the electronic device (1) in a case.

[0186]

[0187] Referring to FIGS. 1 to 23, an electronic device (1) may include: a display (10); a ring-shaped first band (30) connected to the display (10); a second band (40) with both ends connected to the first band (30); and a dial (60; 60'; 60'') for rotating the second band (40) relative to the first band (30), wherein the dial (60; 60'; 60'') comprises: a body (61; 61'; 61'') connected to the first band (30) so as to be rotatable about an axis (A; A'; A'') intersecting the first band (30); And, it may include a first coupling member (60M; 60M'; 60M'') coupled to the body (61; 61''), and the second band (40) may include a second coupling member (40M; 40M') facing the first coupling member (60M; 60M'; 60M''), and among the first coupling member (60M; 60M'; 60M'') or the second coupling member (40M; 40M'), either one may be a magnet, and the other may be a magnet or a magnetic material that is magnetically coupled to the magnet.

[0188] The second band (40) may intersect with the first band (30). The second band (40) may cross the first band (30). The second band (40) may be convex upward.

[0189] The first connecting member (60M; 60M'; 60M'') may have an open ring or a fan shape.

[0190] The first connecting member (60M; 60M'; 60M'') may have a semicircular arch or a semicircular shape.

[0191] The second connecting member (40M; 40M') may have the same shape as the first connecting member (60M; 60M'; 60M'').

[0192] The second band (40) may include an inner part (40a, 40b) facing the inner side of the first band (30), and the first band (30) may include an outer part (30a, 30b) facing the outer side of the inner part (40a, 40b), and the inner part (40a, 40b) may contact the outer part (30a, 30b).

[0193] The first band (30) may include a hole (30L) into which the body (61) of the dial (60) is rotatably inserted, the first coupling member (60M) may be coupled to the inner surface of the body (61) of the dial (60), and the second coupling member (40M) may be coupled to the outer surface of the second band (40) adjacent to one end of the second band (40) and may face the first coupling member (60M).

[0194] The above dial (60) may include a recess (61r) formed on the inner surface of the body (61) of the above dial (60), and the above second band (40) may further include a protrusion (40t) formed on the outer surface of the above second band (40) and inserted into the recess (61r).

[0195] The first band (30) may include: a hole (30L) into which the body (61') of the dial (60') is rotatably inserted; and an insertion portion (30N') formed on the inner surface of the first band (30), and the insertion portion (30N') may include: a side wall (30Na') protruding from the inner surface of the first band (30) and extending along the boundary of the hole (30L); and a top (30Nb') intersecting the side wall (30Na') and facing the body (61') of the dial (60'), and the first coupling member (60M') may be located between the top (30Nb') and the body (61') and may be coupled to the body (61').

[0196] The second band (40) may further include a first hole (40Ha') formed on the outer surface of the second band (40) into which the insertion part (30N') is inserted, and the second band (40) and the dial (60') may be rotatable with respect to the insertion part (30N').

[0197] The second band (40) may further include: a second hole (40Hb') formed on the inner side of the second band (40) and opposite to the first hole (40Ha'); and a rib (40R') between the first hole (40Ha') and the second hole (40Hb'), and the second coupling member (40M') may be located in the second hole (40Hb') and may be coupled to the rib (40R').

[0198] The above insertion portion (30N') may further include a plurality of grooves (30Nc') formed on the outer surface of the side wall (30Na') and arranged in the circumferential direction of the side wall (30Na'), and the second band (40) may further include a projection (40U') protruding toward the groove (30Nc') from a portion of the second band (40) that forms the boundary of the first hole (40Ha').

[0199] The first band (30) may include a hole (30L) through which the body (61'') of the dial (60'') passes, and the body (61'') of the dial (60'') comprises: a first part (611'') forming the outer end of the dial (60''); and a second part (612'') forming the inner end of the dial (60''). Additionally, it may include a third part (613'') located between the first part (611'') and the second part (612'') and forming a side of the dial (60''), and a part of the third part (613'') and the second part (612'') may protrude from the inner surface of the first band (30), and the first coupling member (60M'') may be located in the internal space (61S'') of the body (61'') and may be coupled to the second part (612'').

[0200] The second band (40) may further include: a first hole (40Ha') formed on the outer surface of the second band (40) into which a part of the third part (613'') and the second part (612'') are inserted; a second hole (40Hb') formed on the inner surface of the second band (40) opposite to the first hole (40Ha'); and a rib (40R') between the first hole (40Ha') and the second hole (40Hb'), and the second coupling member (40M') may be positioned in the second hole (40Hb') and may be coupled to the rib (40R'), and the second band (40) and the dial (60'') may be rotatable with respect to the hole (30L).

[0201] The body (61'') of the above dial (60'') may further include a plurality of grooves (613a'') formed on the outer surface of the third part (613'') and arranged in the circumferential direction of the body (61''), and the second band (40) may further include a projection (40U') protruding toward the groove (613a'') from a portion of the second band (40) that forms the boundary of the first hole (40Ha').

[0202] The above display (10) can provide VR (virtual reality), AR (augmented reality), or MR (mixed reality) images.

[0203]

[0204] Some or other embodiments of the present disclosure described above are not exclusive or distinct from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.

[0205] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, even if the combination between configurations is not directly described, it means that combination is possible, except in cases where it is described that combination is impossible.

[0206] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

Claims

1. Display; A ring-shaped first band connected to the above display; A second band crossing the first band and having both ends connected to the first band; and, It includes a dial for rotating the second band with respect to the first band, and The above dial is: A body coupled to the first band so as to be rotatable about an axis intersecting the first band; and, It includes a first coupling member coupled to the above body, and The above second band is: It includes a second coupling member facing the first coupling member, and Among the first coupling member or the second coupling member, An electronic device in which one is a magnet and the other is a magnet or magnetic material that is magnetically coupled to the said magnet.

2. In Paragraph 1, The first coupling member above is, An electronic device having an open ring or fan shape.

3. In Paragraph 2, The first coupling member above is, An electronic device having a semicircular arch or semicircular shape.

4. In Paragraph 1, The above second connecting member is, An electronic device having the same shape as the first coupling member.

5. In Paragraph 1, The above second band is: It includes an inner part facing the inner surface of the first band, and The above first band is: It includes an outer part facing the outer surface of the inner part above, and The above inner part is, An electronic device in contact with the above outer part.

6. In Paragraph 1, The above first band is: The body of the above dial includes a hole into which it is rotatably inserted, and The first coupling member above is, It is coupled to the inner surface of the body of the above dial, and The above second connecting member is, An electronic device coupled to the outer surface of the second band adjacent to one end of the second band and facing the first coupling member.

7. In Paragraph 6, The above dial is: It includes a recess formed on the inner surface of the body of the above dial, and The above second band is: An electronic device further comprising a protrusion formed on the outer surface of the second band and inserted into the recess.

8. In Paragraph 1, The above first band is: A hole into which the body of the above dial is rotatably inserted; and, It includes an insertion portion formed on the inner surface of the first band, and The above insert is: A side wall protruding from the inner surface of the first band and extending along the boundary of the hole; and, It includes a top that intersects the above side wall and faces the above body of the above dial, The first coupling member above is, An electronic device located between the tower and the body and coupled to the body.

9. In Paragraph 8, The above second band is: It further includes a first hole formed on the outer surface of the second band and into which the insertion part is inserted, The second band and the dial mentioned above are, An electronic device rotatable with respect to the above-mentioned insert.

10. In Paragraph 9, The above second band is: A second hole formed on the inner surface of the second band and opposite to the first hole; and, It further includes a rib between the first hole and the second hole, The above second connecting member is, An electronic device located in the second hole and coupled to the rib.

11. In Paragraph 9, The above insert is: It further includes a plurality of grooves formed on the outer surface of the side wall and arranged in the circumferential direction of the side wall. The above second band is: An electronic device further comprising a projection protruding toward the groove from a portion of the second band forming the boundary of the first hole.

12. In Paragraph 1, The above first band is: The body of the above dial includes a hole through which it passes, The body of the above dial is: A first part forming the outer end of the above dial; A second part forming the inner end of the above dial; and, It includes a third part located between the first part and the second part and forming the side of the dial, A part of the above-mentioned third part and the above-mentioned second part are, Protruding from the inner surface of the first band, The first coupling member above is, An electronic device located in the internal space of the body and coupled to the second part.

13. In Paragraph 12, The above second band is: A first hole formed on the outer surface of the second band, into which a part of the third part and the second part are inserted; A second hole formed on the inner surface of the second band and opposite to the first hole; and, It further includes a rib between the first hole and the second hole, The above second connecting member is, Located in the second hole above and coupled to the rib above, The second band and the dial mentioned above are, An electronic device rotatable with respect to the above hole.

14. In Paragraph 13, The body of the above dial is: It further includes a plurality of grooves formed on the outer surface of the third part and arranged in the circumferential direction of the body, The above second band is: An electronic device further comprising a projection protruding toward the groove from a portion of the second band forming the boundary of the first hole.

15. In Paragraph 1, The above display is, An electronic device that provides VR (virtual reality), AR (augmented reality), or MR (mixed reality) images.

Images